--- /dev/null
+See README.
--- /dev/null
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the
+copyright owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other
+entities that control, are controlled by, or are under common control with
+that entity. For the purposes of this definition, "control" means (i) the
+power, direct or indirect, to cause the direction or management of such
+entity, whether by contract or otherwise, or (ii) ownership of fifty
+percent (50%) or more of the outstanding shares, or (iii) beneficial
+ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
+permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications,
+including but not limited to software source code, documentation source,
+and configuration files.
+
+"Object" form shall mean any form resulting from mechanical transformation
+or translation of a Source form, including but not limited to compiled
+object code, generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form,
+made available under the License, as indicated by a copyright notice that
+is included in or attached to the work (an example is provided in the
+Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form,
+that is based on (or derived from) the Work and for which the editorial
+revisions, annotations, elaborations, or other modifications represent, as
+a whole, an original work of authorship. For the purposes of this License,
+Derivative Works shall not include works that remain separable from, or
+merely link (or bind by name) to the interfaces of, the Work and Derivative
+Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original
+version of the Work and any modifications or additions to that Work or
+Derivative Works thereof, that is intentionally submitted to Licensor for
+inclusion in the Work by the copyright owner or by an individual or Legal
+Entity authorized to submit on behalf of the copyright owner. For the
+purposes of this definition, "submitted" means any form of electronic,
+verbal, or written communication sent to the Licensor or its
+representatives, including but not limited to communication on electronic
+mailing lists, source code control systems, and issue tracking systems that
+are managed by, or on behalf of, the Licensor for the purpose of discussing
+and improving the Work, but excluding communication that is conspicuously
+marked or otherwise designated in writing by the copyright owner as "Not a
+Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on
+behalf of whom a Contribution has been received by Licensor and
+subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of this
+License, each Contributor hereby grants to You a perpetual, worldwide,
+non-exclusive, no-charge, royalty-free, irrevocable copyright license to
+reproduce, prepare Derivative Works of, publicly display, publicly perform,
+sublicense, and distribute the Work and such Derivative Works in Source or
+Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of this
+License, each Contributor hereby grants to You a perpetual, worldwide,
+non-exclusive, no-charge, royalty-free, irrevocable (except as stated in
+this section) patent license to make, have made, use, offer to sell, sell,
+import, and otherwise transfer the Work, where such license applies only to
+those patent claims licensable by such Contributor that are necessarily
+infringed by their Contribution(s) alone or by combination of their
+Contribution(s) with the Work to which such Contribution(s) was submitted.
+If You institute patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that the Work or a
+Contribution incorporated within the Work constitutes direct or
+contributory patent infringement, then any patent licenses granted to You
+under this License for that Work shall terminate as of the date such
+litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the Work or
+Derivative Works thereof in any medium, with or without modifications, and
+in Source or Object form, provided that You meet the following conditions:
+
+ 1. You must give any other recipients of the Work or Derivative Works a
+copy of this License; and
+
+ 2. You must cause any modified files to carry prominent notices stating
+that You changed the files; and
+
+ 3. You must retain, in the Source form of any Derivative Works that You
+distribute, all copyright, patent, trademark, and attribution notices from
+the Source form of the Work, excluding those notices that do not pertain to
+any part of the Derivative Works; and
+
+ 4. If the Work includes a "NOTICE" text file as part of its
+distribution, then any Derivative Works that You distribute must include a
+readable copy of the attribution notices contained within such NOTICE file,
+excluding those notices that do not pertain to any part of the Derivative
+Works, in at least one of the following places: within a NOTICE text file
+distributed as part of the Derivative Works; within the Source form or
+documentation, if provided along with the Derivative Works; or, within a
+display generated by the Derivative Works, if and wherever such third-party
+notices normally appear. The contents of the NOTICE file are for
+informational purposes only and do not modify the License. You may add Your
+own attribution notices within Derivative Works that You distribute,
+alongside or as an addendum to the NOTICE text from the Work, provided that
+such additional attribution notices cannot be construed as modifying the
+License.
+
+You may add Your own copyright statement to Your modifications and may
+provide additional or different license terms and conditions for use,
+reproduction, or distribution of Your modifications, or for any such
+Derivative Works as a whole, provided Your use, reproduction, and
+distribution of the Work otherwise complies with the conditions stated in
+this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise, any
+Contribution intentionally submitted for inclusion in the Work by You to
+the Licensor shall be under the terms and conditions of this License,
+without any additional terms or conditions. Notwithstanding the above,
+nothing herein shall supersede or modify the terms of any separate license
+agreement you may have executed with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+names, trademarks, service marks, or product names of the Licensor, except
+as required for reasonable and customary use in describing the origin of
+the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or agreed to
+in writing, Licensor provides the Work (and each Contributor provides its
+Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied, including, without limitation, any
+warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or
+FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for
+determining the appropriateness of using or redistributing the Work and
+assume any risks associated with Your exercise of permissions under this
+License.
+
+8. Limitation of Liability. In no event and under no legal theory, whether
+in tort (including negligence), contract, or otherwise, unless required by
+applicable law (such as deliberate and grossly negligent acts) or agreed to
+in writing, shall any Contributor be liable to You for damages, including
+any direct, indirect, special, incidental, or consequential damages of any
+character arising as a result of this License or out of the use or
+inability to use the Work (including but not limited to damages for loss of
+goodwill, work stoppage, computer failure or malfunction, or any and all
+other commercial damages or losses), even if such Contributor has been
+advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing the
+Work or Derivative Works thereof, You may choose to offer, and charge a fee
+for, acceptance of support, warranty, indemnity, or other liability
+obligations and/or rights consistent with this License. However, in
+accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if
+You agree to indemnify, defend, and hold each Contributor harmless for any
+liability incurred by, or claims asserted against, such Contributor by
+reason of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
+identifying information. (Don't include the brackets!) The text should be
+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included
+on the same "printed page" as the copyright notice for easier
+identification within third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ Licensed under the Apache License, Version 2.0 (the "License"); you may
+ not use this file except in compliance with the License. You may obtain a
+ copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable
+ law or agreed to in writing, software distributed under the License is
+ distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the specific language
+ governing permissions and limitations under the License.
--- /dev/null
+0.1.0
+ - Start of opencore-amr project.
--- /dev/null
+Installation Instructions
+*************************
+
+Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
+2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+
+ This file is free documentation; the Free Software Foundation gives
+unlimited permission to copy, distribute and modify it.
+
+Basic Installation
+==================
+
+ Briefly, the shell commands `./configure; make; make install' should
+configure, build, and install this package. The following
+more-detailed instructions are generic; see the `README' file for
+instructions specific to this package.
+
+ The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation. It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions. Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, and a
+file `config.log' containing compiler output (useful mainly for
+debugging `configure').
+
+ It can also use an optional file (typically called `config.cache'
+and enabled with `--cache-file=config.cache' or simply `-C') that saves
+the results of its tests to speed up reconfiguring. Caching is
+disabled by default to prevent problems with accidental use of stale
+cache files.
+
+ If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release. If you are using the cache, and at
+some point `config.cache' contains results you don't want to keep, you
+may remove or edit it.
+
+ The file `configure.ac' (or `configure.in') is used to create
+`configure' by a program called `autoconf'. You need `configure.ac' if
+you want to change it or regenerate `configure' using a newer version
+of `autoconf'.
+
+The simplest way to compile this package is:
+
+ 1. `cd' to the directory containing the package's source code and type
+ `./configure' to configure the package for your system.
+
+ Running `configure' might take a while. While running, it prints
+ some messages telling which features it is checking for.
+
+ 2. Type `make' to compile the package.
+
+ 3. Optionally, type `make check' to run any self-tests that come with
+ the package.
+
+ 4. Type `make install' to install the programs and any data files and
+ documentation.
+
+ 5. You can remove the program binaries and object files from the
+ source code directory by typing `make clean'. To also remove the
+ files that `configure' created (so you can compile the package for
+ a different kind of computer), type `make distclean'. There is
+ also a `make maintainer-clean' target, but that is intended mainly
+ for the package's developers. If you use it, you may have to get
+ all sorts of other programs in order to regenerate files that came
+ with the distribution.
+
+ 6. Often, you can also type `make uninstall' to remove the installed
+ files again.
+
+Compilers and Options
+=====================
+
+ Some systems require unusual options for compilation or linking that
+the `configure' script does not know about. Run `./configure --help'
+for details on some of the pertinent environment variables.
+
+ You can give `configure' initial values for configuration parameters
+by setting variables in the command line or in the environment. Here
+is an example:
+
+ ./configure CC=c99 CFLAGS=-g LIBS=-lposix
+
+ *Note Defining Variables::, for more details.
+
+Compiling For Multiple Architectures
+====================================
+
+ You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory. To do this, you can use GNU `make'. `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script. `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+ With a non-GNU `make', it is safer to compile the package for one
+architecture at a time in the source code directory. After you have
+installed the package for one architecture, use `make distclean' before
+reconfiguring for another architecture.
+
+ On MacOS X 10.5 and later systems, you can create libraries and
+executables that work on multiple system types--known as "fat" or
+"universal" binaries--by specifying multiple `-arch' options to the
+compiler but only a single `-arch' option to the preprocessor. Like
+this:
+
+ ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
+ CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
+ CPP="gcc -E" CXXCPP="g++ -E"
+
+ This is not guaranteed to produce working output in all cases, you
+may have to build one architecture at a time and combine the results
+using the `lipo' tool if you have problems.
+
+Installation Names
+==================
+
+ By default, `make install' installs the package's commands under
+`/usr/local/bin', include files under `/usr/local/include', etc. You
+can specify an installation prefix other than `/usr/local' by giving
+`configure' the option `--prefix=PREFIX'.
+
+ You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files. If you
+pass the option `--exec-prefix=PREFIX' to `configure', the package uses
+PREFIX as the prefix for installing programs and libraries.
+Documentation and other data files still use the regular prefix.
+
+ In addition, if you use an unusual directory layout you can give
+options like `--bindir=DIR' to specify different values for particular
+kinds of files. Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+ If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+ Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System). The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+ For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Particular systems
+==================
+
+ On HP-UX, the default C compiler is not ANSI C compatible. If GNU
+CC is not installed, it is recommended to use the following options in
+order to use an ANSI C compiler:
+
+ ./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
+
+and if that doesn't work, install pre-built binaries of GCC for HP-UX.
+
+ On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
+parse its `<wchar.h>' header file. The option `-nodtk' can be used as
+a workaround. If GNU CC is not installed, it is therefore recommended
+to try
+
+ ./configure CC="cc"
+
+and if that doesn't work, try
+
+ ./configure CC="cc -nodtk"
+
+ On Solaris, don't put `/usr/ucb' early in your `PATH'. This
+directory contains several dysfunctional programs; working variants of
+these programs are available in `/usr/bin'. So, if you need `/usr/ucb'
+in your `PATH', put it _after_ `/usr/bin'.
+
+ On Haiku, software installed for all users goes in `/boot/common',
+not `/usr/local'. It is recommended to use the following options:
+
+ ./configure --prefix=/boot/common
+
+Specifying the System Type
+==========================
+
+ There may be some features `configure' cannot figure out
+automatically, but needs to determine by the type of machine the package
+will run on. Usually, assuming the package is built to be run on the
+_same_ architectures, `configure' can figure that out, but if it prints
+a message saying it cannot guess the machine type, give it the
+`--build=TYPE' option. TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name which has the form:
+
+ CPU-COMPANY-SYSTEM
+
+where SYSTEM can have one of these forms:
+
+ OS
+ KERNEL-OS
+
+ See the file `config.sub' for the possible values of each field. If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the machine type.
+
+ If you are _building_ compiler tools for cross-compiling, you should
+use the option `--target=TYPE' to select the type of system they will
+produce code for.
+
+ If you want to _use_ a cross compiler, that generates code for a
+platform different from the build platform, you should specify the
+"host" platform (i.e., that on which the generated programs will
+eventually be run) with `--host=TYPE'.
+
+Sharing Defaults
+================
+
+ If you want to set default values for `configure' scripts to share,
+you can create a site shell script called `config.site' that gives
+default values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists. Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Defining Variables
+==================
+
+ Variables not defined in a site shell script can be set in the
+environment passed to `configure'. However, some packages may run
+configure again during the build, and the customized values of these
+variables may be lost. In order to avoid this problem, you should set
+them in the `configure' command line, using `VAR=value'. For example:
+
+ ./configure CC=/usr/local2/bin/gcc
+
+causes the specified `gcc' to be used as the C compiler (unless it is
+overridden in the site shell script).
+
+Unfortunately, this technique does not work for `CONFIG_SHELL' due to
+an Autoconf bug. Until the bug is fixed you can use this workaround:
+
+ CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
+
+`configure' Invocation
+======================
+
+ `configure' recognizes the following options to control how it
+operates.
+
+`--help'
+`-h'
+ Print a summary of all of the options to `configure', and exit.
+
+`--help=short'
+`--help=recursive'
+ Print a summary of the options unique to this package's
+ `configure', and exit. The `short' variant lists options used
+ only in the top level, while the `recursive' variant lists options
+ also present in any nested packages.
+
+`--version'
+`-V'
+ Print the version of Autoconf used to generate the `configure'
+ script, and exit.
+
+`--cache-file=FILE'
+ Enable the cache: use and save the results of the tests in FILE,
+ traditionally `config.cache'. FILE defaults to `/dev/null' to
+ disable caching.
+
+`--config-cache'
+`-C'
+ Alias for `--cache-file=config.cache'.
+
+`--quiet'
+`--silent'
+`-q'
+ Do not print messages saying which checks are being made. To
+ suppress all normal output, redirect it to `/dev/null' (any error
+ messages will still be shown).
+
+`--srcdir=DIR'
+ Look for the package's source code in directory DIR. Usually
+ `configure' can determine that directory automatically.
+
+`--prefix=DIR'
+ Use DIR as the installation prefix. *Note Installation Names::
+ for more details, including other options available for fine-tuning
+ the installation locations.
+
+`--no-create'
+`-n'
+ Run the configure checks, but stop before creating any output
+ files.
+
+`configure' also accepts some other, not widely useful, options. Run
+`configure --help' for more details.
+
--- /dev/null
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the
+copyright owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other
+entities that control, are controlled by, or are under common control with
+that entity. For the purposes of this definition, "control" means (i) the
+power, direct or indirect, to cause the direction or management of such
+entity, whether by contract or otherwise, or (ii) ownership of fifty
+percent (50%) or more of the outstanding shares, or (iii) beneficial
+ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
+permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications,
+including but not limited to software source code, documentation source,
+and configuration files.
+
+"Object" form shall mean any form resulting from mechanical transformation
+or translation of a Source form, including but not limited to compiled
+object code, generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form,
+made available under the License, as indicated by a copyright notice that
+is included in or attached to the work (an example is provided in the
+Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form,
+that is based on (or derived from) the Work and for which the editorial
+revisions, annotations, elaborations, or other modifications represent, as
+a whole, an original work of authorship. For the purposes of this License,
+Derivative Works shall not include works that remain separable from, or
+merely link (or bind by name) to the interfaces of, the Work and Derivative
+Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original
+version of the Work and any modifications or additions to that Work or
+Derivative Works thereof, that is intentionally submitted to Licensor for
+inclusion in the Work by the copyright owner or by an individual or Legal
+Entity authorized to submit on behalf of the copyright owner. For the
+purposes of this definition, "submitted" means any form of electronic,
+verbal, or written communication sent to the Licensor or its
+representatives, including but not limited to communication on electronic
+mailing lists, source code control systems, and issue tracking systems that
+are managed by, or on behalf of, the Licensor for the purpose of discussing
+and improving the Work, but excluding communication that is conspicuously
+marked or otherwise designated in writing by the copyright owner as "Not a
+Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on
+behalf of whom a Contribution has been received by Licensor and
+subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of this
+License, each Contributor hereby grants to You a perpetual, worldwide,
+non-exclusive, no-charge, royalty-free, irrevocable copyright license to
+reproduce, prepare Derivative Works of, publicly display, publicly perform,
+sublicense, and distribute the Work and such Derivative Works in Source or
+Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of this
+License, each Contributor hereby grants to You a perpetual, worldwide,
+non-exclusive, no-charge, royalty-free, irrevocable (except as stated in
+this section) patent license to make, have made, use, offer to sell, sell,
+import, and otherwise transfer the Work, where such license applies only to
+those patent claims licensable by such Contributor that are necessarily
+infringed by their Contribution(s) alone or by combination of their
+Contribution(s) with the Work to which such Contribution(s) was submitted.
+If You institute patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that the Work or a
+Contribution incorporated within the Work constitutes direct or
+contributory patent infringement, then any patent licenses granted to You
+under this License for that Work shall terminate as of the date such
+litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the Work or
+Derivative Works thereof in any medium, with or without modifications, and
+in Source or Object form, provided that You meet the following conditions:
+
+ 1. You must give any other recipients of the Work or Derivative Works a
+copy of this License; and
+
+ 2. You must cause any modified files to carry prominent notices stating
+that You changed the files; and
+
+ 3. You must retain, in the Source form of any Derivative Works that You
+distribute, all copyright, patent, trademark, and attribution notices from
+the Source form of the Work, excluding those notices that do not pertain to
+any part of the Derivative Works; and
+
+ 4. If the Work includes a "NOTICE" text file as part of its
+distribution, then any Derivative Works that You distribute must include a
+readable copy of the attribution notices contained within such NOTICE file,
+excluding those notices that do not pertain to any part of the Derivative
+Works, in at least one of the following places: within a NOTICE text file
+distributed as part of the Derivative Works; within the Source form or
+documentation, if provided along with the Derivative Works; or, within a
+display generated by the Derivative Works, if and wherever such third-party
+notices normally appear. The contents of the NOTICE file are for
+informational purposes only and do not modify the License. You may add Your
+own attribution notices within Derivative Works that You distribute,
+alongside or as an addendum to the NOTICE text from the Work, provided that
+such additional attribution notices cannot be construed as modifying the
+License.
+
+You may add Your own copyright statement to Your modifications and may
+provide additional or different license terms and conditions for use,
+reproduction, or distribution of Your modifications, or for any such
+Derivative Works as a whole, provided Your use, reproduction, and
+distribution of the Work otherwise complies with the conditions stated in
+this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise, any
+Contribution intentionally submitted for inclusion in the Work by You to
+the Licensor shall be under the terms and conditions of this License,
+without any additional terms or conditions. Notwithstanding the above,
+nothing herein shall supersede or modify the terms of any separate license
+agreement you may have executed with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+names, trademarks, service marks, or product names of the Licensor, except
+as required for reasonable and customary use in describing the origin of
+the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or agreed to
+in writing, Licensor provides the Work (and each Contributor provides its
+Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied, including, without limitation, any
+warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or
+FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for
+determining the appropriateness of using or redistributing the Work and
+assume any risks associated with Your exercise of permissions under this
+License.
+
+8. Limitation of Liability. In no event and under no legal theory, whether
+in tort (including negligence), contract, or otherwise, unless required by
+applicable law (such as deliberate and grossly negligent acts) or agreed to
+in writing, shall any Contributor be liable to You for damages, including
+any direct, indirect, special, incidental, or consequential damages of any
+character arising as a result of this License or out of the use or
+inability to use the Work (including but not limited to damages for loss of
+goodwill, work stoppage, computer failure or malfunction, or any and all
+other commercial damages or losses), even if such Contributor has been
+advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing the
+Work or Derivative Works thereof, You may choose to offer, and charge a fee
+for, acceptance of support, warranty, indemnity, or other liability
+obligations and/or rights consistent with this License. However, in
+accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if
+You agree to indemnify, defend, and hold each Contributor harmless for any
+liability incurred by, or claims asserted against, such Contributor by
+reason of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
+identifying information. (Don't include the brackets!) The text should be
+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included
+on the same "printed page" as the copyright notice for easier
+identification within third-party archives.
+
+ Copyright [yyyy] [name of copyright owner]
+
+ Licensed under the Apache License, Version 2.0 (the "License"); you may
+ not use this file except in compliance with the License. You may obtain a
+ copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable
+ law or agreed to in writing, software distributed under the License is
+ distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied. See the License for the specific language
+ governing permissions and limitations under the License.
--- /dev/null
+all:
+ $(MAKE) -f Makefile.alt -C amrnb BUILD_AS_C=1
+ $(MAKE) -f Makefile.alt -C amrwb BUILD_AS_C=1
+
+distclean: clean
+clean:
+ $(MAKE) -f Makefile.alt -C amrnb clean
+ $(MAKE) -f Makefile.alt -C amrwb clean
+
+install:
+ $(MAKE) -f Makefile.alt -C amrnb install BUILD_AS_C=1
+ $(MAKE) -f Makefile.alt -C amrwb install BUILD_AS_C=1
+
+.PHONY: install
+
--- /dev/null
+SUBDIRS = amrnb amrwb test
+
+ACLOCAL_AMFLAGS = -I m4
+
+noinst_HEADERS = oscl/oscl_base.h oscl/oscl_mem.h
+
+EXTRA_DIST = LICENSE Makefile.alt build_osx.sh \
+ opencore/README opencore/NOTICE opencore/ChangeLog \
+ opencore/codecs_v2/audio/gsm_amr/patent_disclaimer.txt \
+ opencore/codecs_v2/audio/gsm_amr/common/dec/include \
+ opencore/codecs_v2/audio/gsm_amr/common/dec/build \
+ opencore/codecs_v2/audio/gsm_amr/common/dec/Android.mk \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/common/Android.mk \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/common/build \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/common/include \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/common/src/*.cpp \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/dec/Android.mk \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/dec/build \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/dec/include \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/dec/src/*.cpp \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/dec/src/*.h \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/enc/Android.mk \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/enc/build \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/enc/include \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/enc/src/*.cpp \
+ opencore/codecs_v2/audio/gsm_amr/amr_nb/enc/src/*.h \
+ opencore/codecs_v2/audio/gsm_amr/amr_wb/dec/Android.mk \
+ opencore/codecs_v2/audio/gsm_amr/amr_wb/dec/build \
+ opencore/codecs_v2/audio/gsm_amr/amr_wb/dec/include \
+ opencore/codecs_v2/audio/gsm_amr/amr_wb/dec/src/*.cpp \
+ opencore/codecs_v2/audio/gsm_amr/amr_wb/dec/src/*.h
+
--- /dev/null
+OpenCORE Adaptive Multi Rate (AMR) speech codec library implementation.
+
+This library contains an implementation of the 3GPP TS 26.073 specification for
+the Adaptive Multi Rate (AMR) speech codec and an implementation for the
+3GPP TS 26.173 specification for the Adaptive Multi-Rate - Wideband (AMR-WB)
+speech decoder. The implementation is derived from the OpenCORE framework, part
+of the Google Android project.
+
+This library is Licensed under the Apache License, Version 2.0. A copy me be
+found in the file 'LICENSE' and at
+http://www.apache.org/licenses/LICENSE-2.0.html
--- /dev/null
+# Just set OC_BASE to the opencore root, or set AMR_BASE directly to
+# a detached gsm_amr directory
+OC_BASE = ../opencore
+AMR_BASE = $(OC_BASE)/codecs_v2/audio/gsm_amr
+LIBDIR=lib
+BINDIR=bin
+
+# To compile as C instead of C++, define BUILD_AS_C
+ifneq (, $(BUILD_AS_C))
+ CXX = $(CC)
+ CXXFLAGS += -x c -std=c99
+endif
+
+ifeq (, $(PREFIX))
+ PREFIX = /usr/local
+endif
+
+DEC_DIR = $(AMR_BASE)/amr_nb/dec
+ENC_DIR = $(AMR_BASE)/amr_nb/enc
+COMMON_DIR = $(AMR_BASE)/amr_nb/common
+DEC_SRC_DIR = $(DEC_DIR)/src
+ENC_SRC_DIR = $(ENC_DIR)/src
+COMMON_SRC_DIR = $(COMMON_DIR)/src
+OSCL = ../oscl
+
+CPPFLAGS = -I$(OSCL) -I$(DEC_SRC_DIR) -I$(COMMON_DIR)/include -I$(DEC_DIR)/include -I$(AMR_BASE)/common/dec/include -I$(ENC_SRC_DIR)
+
+# Find all the source files
+DEC_SRC := $(shell cd $(DEC_SRC_DIR) && echo *.cpp)
+ENC_SRC := $(shell cd $(ENC_SRC_DIR) && echo *.cpp)
+COMMON_SRC := $(shell cd $(COMMON_SRC_DIR) && echo *.cpp)
+
+# Exclude these files
+DEC_SRC := $(DEC_SRC:decoder_gsm_amr.cpp=)
+DEC_SRC := $(DEC_SRC:pvgsmamrdecoder.cpp=)
+ENC_SRC := $(ENC_SRC:gsmamr_encoder_wrapper.cpp=)
+COMMON_SRC := $(COMMON_SRC:bits2prm.cpp=)
+COMMON_SRC := $(COMMON_SRC:copy.cpp=)
+COMMON_SRC := $(COMMON_SRC:div_32.cpp=)
+COMMON_SRC := $(COMMON_SRC:l_abs.cpp=)
+COMMON_SRC := $(COMMON_SRC:vad1.cpp=)
+COMMON_SRC := $(COMMON_SRC:r_fft.cpp=)
+COMMON_SRC := $(COMMON_SRC:vad2.cpp=)
+
+DEC_OBJS := $(DEC_SRC:.cpp=.o)
+DEC_OBJS := $(patsubst %,$(DEC_SRC_DIR)/%, $(DEC_OBJS))
+ENC_OBJS := $(ENC_SRC:.cpp=.o)
+ENC_OBJS := $(patsubst %,$(ENC_SRC_DIR)/%, $(ENC_OBJS))
+COMMON_OBJS := $(COMMON_SRC:.cpp=.o)
+COMMON_OBJS := $(patsubst %,$(COMMON_SRC_DIR)/%, $(COMMON_OBJS))
+
+OBJS = wrapper.o $(DEC_OBJS) $(ENC_OBJS) $(COMMON_OBJS)
+SOBJS = $(OBJS:%.o=%.lo)
+
+#Versioning
+MAJOR = 0
+MINOR = 1
+REVISION = 1
+VERSION = $(MAJOR).$(MINOR).$(REVISION)
+
+ifeq ($(shell uname), Darwin)
+ SHLIB_EXT = dylib
+ SHLIB_FLAGS = -dynamiclib
+else
+ ifeq ($(shell uname | sed -e 's/\(MINGW32_NT\)\(.*\)/\1/'), MINGW32_NT)
+ SHLIB_EXT = $(MAJOR).$(MINOR).$(REVISION).dll
+ SHLIB_FLAGS = -shared
+ SONAME = libopencore-amrnb-$(MAJOR).dll
+ else
+ SHLIB_EXT = so.$(MAJOR).$(MINOR).$(REVISION)
+ SHLIB_FLAGS = -shared
+ SONAME = libopencore-amrnb.so.$(MAJOR)
+ endif
+endif
+SHLIB = libopencore-amrnb.$(SHLIB_EXT)
+
+all: libopencore-amrnb.a $(SHLIB)
+
+$(SHLIB): $(SOBJS)
+ifeq ($(shell uname), Darwin)
+ $(CXX) $(SHLIB_FLAGS) -o $@ $+ $(LDFLAGS)
+else
+ $(CXX) $(SHLIB_FLAGS) -o $@ $+ -Wl,-soname,$(SONAME) $(LDFLAGS)
+endif
+
+%.lo: %.c
+ $(CC) $(CPPFLAGS) $(CFLAGS) -fPIC -DPIC -c $< -o $@
+
+%.lo: %.cpp
+ $(CXX) $(CPPFLAGS) $(CXXFLAGS) -fPIC -DPIC -c $< -o $@
+
+libopencore-amrnb.a: $(OBJS)
+ ar rcs $@ $+
+
+install: libopencore-amrnb.a $(SHLIB)
+ install -d $(DESTDIR)$(PREFIX)/$(LIBDIR)
+ install -m 644 libopencore-amrnb.a $(DESTDIR)$(PREFIX)/$(LIBDIR)
+ifeq ($(shell uname | sed -e 's/\(MINGW32_NT\)\(.*\)/\1/'), MINGW32_NT)
+ install -d $(DESTDIR)$(PREFIX)/$(BINDIR)
+ install $(SHLIB) $(DESTDIR)$(PREFIX)/$(BINDIR)
+else
+ install $(SHLIB) $(DESTDIR)$(PREFIX)/$(LIBDIR)
+endif
+ifneq ($(shell uname), Darwin)
+ifeq ($(shell uname | sed -e 's/\(MINGW32_NT\)\(.*\)/\1/'), MINGW32_NT)
+ ln -sf $(SHLIB) $(DESTDIR)$(PREFIX)/$(BINDIR)/$(SONAME)
+ ln -sf $(DESTDIR)$(PREFIX)/$(BINDIR)/$(SONAME) $(DESTDIR)$(PREFIX)/$(BINDIR)/libopencore-amrnb.dll
+else
+ ln -sf $(SHLIB) $(DESTDIR)$(PREFIX)/$(LIBDIR)/$(SONAME)
+ ln -sf $(SONAME) $(DESTDIR)$(PREFIX)/$(LIBDIR)/libopencore-amrnb.so
+endif
+endif
+ install -d $(DESTDIR)$(PREFIX)/include/opencore-amrnb
+ install -m 644 interf_dec.h $(DESTDIR)$(PREFIX)/include/opencore-amrnb
+ install -m 644 interf_enc.h $(DESTDIR)$(PREFIX)/include/opencore-amrnb
+
+clean:
+ rm -f $(SHLIB) libopencore-amrnb.a *.o *.lo $(OBJS) $(SOBJS)
+
--- /dev/null
+# Just set OC_BASE to the opencore root, or set AMR_BASE directly to
+# a detached gsm_amr directory
+OC_BASE = $(top_srcdir)/opencore
+AMR_BASE = $(OC_BASE)/codecs_v2/audio/gsm_amr
+
+DEC_DIR = $(AMR_BASE)/amr_nb/dec
+ENC_DIR = $(AMR_BASE)/amr_nb/enc
+COMMON_DIR = $(AMR_BASE)/amr_nb/common
+DEC_SRC_DIR = $(DEC_DIR)/src
+ENC_SRC_DIR = $(ENC_DIR)/src
+COMMON_SRC_DIR = $(COMMON_DIR)/src
+OSCL = $(top_srcdir)/oscl
+
+AM_CFLAGS = -I$(OSCL) -I$(DEC_SRC_DIR) -I$(COMMON_DIR)/include \
+ -I$(DEC_DIR)/include -I$(AMR_BASE)/common/dec/include -I$(ENC_SRC_DIR)
+
+if COMPILE_AS_C
+ AM_CFLAGS += -x c -std=c99
+endif
+
+AM_CXXFLAGS = $(AM_CFLAGS)
+
+amrnbincludedir = $(includedir)/opencore-amrnb
+amrnbinclude_HEADERS = interf_dec.h interf_enc.h
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = opencore-amrnb.pc
+
+lib_LTLIBRARIES = libopencore-amrnb.la
+
+libopencore_amrnb_la_LDFLAGS = -version-info @OPENCORE_AMRNB_VERSION@
+
+# Our sources to include. There are certain sources we exclude and they are
+# $(DEC_SRC_DIR)/decoder_gsm_amr.cpp
+# $(DEC_SRC_DIR)/pvgsmamrdecoder.cpp
+# $(ENC_SRC_DIR)/gsmamr_encoder_wrapper.cpp
+# $(COMMON_SRC_DIR)/bits2prm.cpp
+# $(COMMON_SRC_DIR)/copy.cpp
+# $(COMMON_SRC_DIR)/div_32.cpp
+# $(COMMON_SRC_DIR)/l_abs.cpp
+# $(COMMON_SRC_DIR)/r_fft.cpp
+# $(COMMON_SRC_DIR)/vad1.cpp
+# $(COMMON_SRC_DIR)/vad2.cpp
+libopencore_amrnb_la_SOURCES = \
+ wrapper.cpp \
+ $(DEC_SRC_DIR)/agc.cpp \
+ $(DEC_SRC_DIR)/amrdecode.cpp \
+ $(DEC_SRC_DIR)/a_refl.cpp \
+ $(DEC_SRC_DIR)/b_cn_cod.cpp \
+ $(DEC_SRC_DIR)/bgnscd.cpp \
+ $(DEC_SRC_DIR)/c_g_aver.cpp \
+ $(DEC_SRC_DIR)/d1035pf.cpp \
+ $(DEC_SRC_DIR)/d2_11pf.cpp \
+ $(DEC_SRC_DIR)/d2_9pf.cpp \
+ $(DEC_SRC_DIR)/d3_14pf.cpp \
+ $(DEC_SRC_DIR)/d4_17pf.cpp \
+ $(DEC_SRC_DIR)/d8_31pf.cpp \
+ $(DEC_SRC_DIR)/dec_amr.cpp \
+ $(DEC_SRC_DIR)/dec_gain.cpp \
+ $(DEC_SRC_DIR)/dec_input_format_tab.cpp \
+ $(DEC_SRC_DIR)/dec_lag3.cpp \
+ $(DEC_SRC_DIR)/dec_lag6.cpp \
+ $(DEC_SRC_DIR)/d_gain_c.cpp \
+ $(DEC_SRC_DIR)/d_gain_p.cpp \
+ $(DEC_SRC_DIR)/d_plsf_3.cpp \
+ $(DEC_SRC_DIR)/d_plsf_5.cpp \
+ $(DEC_SRC_DIR)/d_plsf.cpp \
+ $(DEC_SRC_DIR)/dtx_dec.cpp \
+ $(DEC_SRC_DIR)/ec_gains.cpp \
+ $(DEC_SRC_DIR)/ex_ctrl.cpp \
+ $(DEC_SRC_DIR)/if2_to_ets.cpp \
+ $(DEC_SRC_DIR)/int_lsf.cpp \
+ $(DEC_SRC_DIR)/lsp_avg.cpp \
+ $(DEC_SRC_DIR)/ph_disp.cpp \
+ $(DEC_SRC_DIR)/post_pro.cpp \
+ $(DEC_SRC_DIR)/preemph.cpp \
+ $(DEC_SRC_DIR)/pstfilt.cpp \
+ $(DEC_SRC_DIR)/qgain475_tab.cpp \
+ $(DEC_SRC_DIR)/sp_dec.cpp \
+ $(DEC_SRC_DIR)/wmf_to_ets.cpp \
+ $(ENC_SRC_DIR)/amrencode.cpp \
+ $(ENC_SRC_DIR)/autocorr.cpp \
+ $(ENC_SRC_DIR)/c1035pf.cpp \
+ $(ENC_SRC_DIR)/c2_11pf.cpp \
+ $(ENC_SRC_DIR)/c2_9pf.cpp \
+ $(ENC_SRC_DIR)/c3_14pf.cpp \
+ $(ENC_SRC_DIR)/c4_17pf.cpp \
+ $(ENC_SRC_DIR)/c8_31pf.cpp \
+ $(ENC_SRC_DIR)/calc_cor.cpp \
+ $(ENC_SRC_DIR)/calc_en.cpp \
+ $(ENC_SRC_DIR)/cbsearch.cpp \
+ $(ENC_SRC_DIR)/cl_ltp.cpp \
+ $(ENC_SRC_DIR)/cod_amr.cpp \
+ $(ENC_SRC_DIR)/convolve.cpp \
+ $(ENC_SRC_DIR)/cor_h.cpp \
+ $(ENC_SRC_DIR)/cor_h_x2.cpp \
+ $(ENC_SRC_DIR)/cor_h_x.cpp \
+ $(ENC_SRC_DIR)/corrwght_tab.cpp \
+ $(ENC_SRC_DIR)/div_32.cpp \
+ $(ENC_SRC_DIR)/dtx_enc.cpp \
+ $(ENC_SRC_DIR)/enc_lag3.cpp \
+ $(ENC_SRC_DIR)/enc_lag6.cpp \
+ $(ENC_SRC_DIR)/enc_output_format_tab.cpp \
+ $(ENC_SRC_DIR)/ets_to_if2.cpp \
+ $(ENC_SRC_DIR)/ets_to_wmf.cpp \
+ $(ENC_SRC_DIR)/g_adapt.cpp \
+ $(ENC_SRC_DIR)/gain_q.cpp \
+ $(ENC_SRC_DIR)/g_code.cpp \
+ $(ENC_SRC_DIR)/g_pitch.cpp \
+ $(ENC_SRC_DIR)/hp_max.cpp \
+ $(ENC_SRC_DIR)/inter_36.cpp \
+ $(ENC_SRC_DIR)/inter_36_tab.cpp \
+ $(ENC_SRC_DIR)/l_abs.cpp \
+ $(ENC_SRC_DIR)/lag_wind.cpp \
+ $(ENC_SRC_DIR)/lag_wind_tab.cpp \
+ $(ENC_SRC_DIR)/l_comp.cpp \
+ $(ENC_SRC_DIR)/levinson.cpp \
+ $(ENC_SRC_DIR)/l_extract.cpp \
+ $(ENC_SRC_DIR)/lflg_upd.cpp \
+ $(ENC_SRC_DIR)/l_negate.cpp \
+ $(ENC_SRC_DIR)/lpc.cpp \
+ $(ENC_SRC_DIR)/ol_ltp.cpp \
+ $(ENC_SRC_DIR)/pitch_fr.cpp \
+ $(ENC_SRC_DIR)/pitch_ol.cpp \
+ $(ENC_SRC_DIR)/p_ol_wgh.cpp \
+ $(ENC_SRC_DIR)/pre_big.cpp \
+ $(ENC_SRC_DIR)/pre_proc.cpp \
+ $(ENC_SRC_DIR)/prm2bits.cpp \
+ $(ENC_SRC_DIR)/qgain475.cpp \
+ $(ENC_SRC_DIR)/qgain795.cpp \
+ $(ENC_SRC_DIR)/q_gain_c.cpp \
+ $(ENC_SRC_DIR)/q_gain_p.cpp \
+ $(ENC_SRC_DIR)/qua_gain.cpp \
+ $(ENC_SRC_DIR)/s10_8pf.cpp \
+ $(ENC_SRC_DIR)/set_sign.cpp \
+ $(ENC_SRC_DIR)/sid_sync.cpp \
+ $(ENC_SRC_DIR)/sp_enc.cpp \
+ $(ENC_SRC_DIR)/spreproc.cpp \
+ $(ENC_SRC_DIR)/spstproc.cpp \
+ $(ENC_SRC_DIR)/ton_stab.cpp \
+ $(ENC_SRC_DIR)/vad1.cpp \
+ $(COMMON_SRC_DIR)/add.cpp \
+ $(COMMON_SRC_DIR)/az_lsp.cpp \
+ $(COMMON_SRC_DIR)/bitno_tab.cpp \
+ $(COMMON_SRC_DIR)/bitreorder_tab.cpp \
+ $(COMMON_SRC_DIR)/bytesused.cpp \
+ $(COMMON_SRC_DIR)/c2_9pf_tab.cpp \
+ $(COMMON_SRC_DIR)/div_s.cpp \
+ $(COMMON_SRC_DIR)/extract_h.cpp \
+ $(COMMON_SRC_DIR)/extract_l.cpp \
+ $(COMMON_SRC_DIR)/gains_tbl.cpp \
+ $(COMMON_SRC_DIR)/gc_pred.cpp \
+ $(COMMON_SRC_DIR)/get_const_tbls.cpp \
+ $(COMMON_SRC_DIR)/gmed_n.cpp \
+ $(COMMON_SRC_DIR)/gray_tbl.cpp \
+ $(COMMON_SRC_DIR)/grid_tbl.cpp \
+ $(COMMON_SRC_DIR)/int_lpc.cpp \
+ $(COMMON_SRC_DIR)/inv_sqrt.cpp \
+ $(COMMON_SRC_DIR)/inv_sqrt_tbl.cpp \
+ $(COMMON_SRC_DIR)/l_deposit_h.cpp \
+ $(COMMON_SRC_DIR)/l_deposit_l.cpp \
+ $(COMMON_SRC_DIR)/log2.cpp \
+ $(COMMON_SRC_DIR)/log2_norm.cpp \
+ $(COMMON_SRC_DIR)/log2_tbl.cpp \
+ $(COMMON_SRC_DIR)/lsfwt.cpp \
+ $(COMMON_SRC_DIR)/l_shr_r.cpp \
+ $(COMMON_SRC_DIR)/lsp_az.cpp \
+ $(COMMON_SRC_DIR)/lsp.cpp \
+ $(COMMON_SRC_DIR)/lsp_lsf.cpp \
+ $(COMMON_SRC_DIR)/lsp_lsf_tbl.cpp \
+ $(COMMON_SRC_DIR)/lsp_tab.cpp \
+ $(COMMON_SRC_DIR)/mult_r.cpp \
+ $(COMMON_SRC_DIR)/negate.cpp \
+ $(COMMON_SRC_DIR)/norm_l.cpp \
+ $(COMMON_SRC_DIR)/norm_s.cpp \
+ $(COMMON_SRC_DIR)/overflow_tbl.cpp \
+ $(COMMON_SRC_DIR)/ph_disp_tab.cpp \
+ $(COMMON_SRC_DIR)/pow2.cpp \
+ $(COMMON_SRC_DIR)/pow2_tbl.cpp \
+ $(COMMON_SRC_DIR)/pred_lt.cpp \
+ $(COMMON_SRC_DIR)/q_plsf_3.cpp \
+ $(COMMON_SRC_DIR)/q_plsf_3_tbl.cpp \
+ $(COMMON_SRC_DIR)/q_plsf_5.cpp \
+ $(COMMON_SRC_DIR)/q_plsf_5_tbl.cpp \
+ $(COMMON_SRC_DIR)/q_plsf.cpp \
+ $(COMMON_SRC_DIR)/qua_gain_tbl.cpp \
+ $(COMMON_SRC_DIR)/reorder.cpp \
+ $(COMMON_SRC_DIR)/residu.cpp \
+ $(COMMON_SRC_DIR)/round.cpp \
+ $(COMMON_SRC_DIR)/set_zero.cpp \
+ $(COMMON_SRC_DIR)/shr.cpp \
+ $(COMMON_SRC_DIR)/shr_r.cpp \
+ $(COMMON_SRC_DIR)/sqrt_l.cpp \
+ $(COMMON_SRC_DIR)/sqrt_l_tbl.cpp \
+ $(COMMON_SRC_DIR)/sub.cpp \
+ $(COMMON_SRC_DIR)/syn_filt.cpp \
+ $(COMMON_SRC_DIR)/weight_a.cpp \
+ $(COMMON_SRC_DIR)/window_tab.cpp
+
+EXTRA_DIST = Makefile.alt
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#ifndef OPENCORE_AMRNB_INTERF_DEC_H
+#define OPENCORE_AMRNB_INTERF_DEC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void* Decoder_Interface_init(void);
+void Decoder_Interface_exit(void* state);
+void Decoder_Interface_Decode(void* state, const unsigned char* in, short* out, int bfi);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#ifndef OPENCORE_AMRNB_INTERF_ENC_H
+#define OPENCORE_AMRNB_INTERF_ENC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef AMRNB_WRAPPER_INTERNAL
+/* Copied from enc/src/gsmamr_enc.h */
+enum Mode {
+ MR475 = 0,/* 4.75 kbps */
+ MR515, /* 5.15 kbps */
+ MR59, /* 5.90 kbps */
+ MR67, /* 6.70 kbps */
+ MR74, /* 7.40 kbps */
+ MR795, /* 7.95 kbps */
+ MR102, /* 10.2 kbps */
+ MR122, /* 12.2 kbps */
+ MRDTX, /* DTX */
+ N_MODES /* Not Used */
+};
+#endif
+
+void* Encoder_Interface_init(int dtx);
+void Encoder_Interface_exit(void* state);
+int Encoder_Interface_Encode(void* state, enum Mode mode, const short* speech, unsigned char* out, int forceSpeech);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@/opencore-amrnb
+
+Name: OpenCORE AMR-NB
+Description: Adaptive Multi-Rate speech codec library
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lopencore-amrnb
+Cflags: -I${includedir}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#define AMRNB_WRAPPER_INTERNAL
+#include <sp_dec.h>
+#include <amrdecode.h>
+#include <amrencode.h>
+#include "interf_dec.h"
+#include "interf_enc.h"
+#include <stdlib.h>
+
+void* Decoder_Interface_init(void) {
+ void* ptr = NULL;
+ GSMInitDecode(&ptr, (int8*)"Decoder");
+ return ptr;
+}
+
+void Decoder_Interface_exit(void* state) {
+ GSMDecodeFrameExit(&state);
+}
+
+void Decoder_Interface_Decode(void* state, const unsigned char* in, short* out, int bfi) {
+ unsigned char type = (in[0] >> 3) & 0x0f;
+ in++;
+ AMRDecode(state, (enum Frame_Type_3GPP) type, (UWord8*) in, out, MIME_IETF);
+}
+
+struct encoder_state {
+ void* encCtx;
+ void* pidSyncCtx;
+};
+
+void* Encoder_Interface_init(int dtx) {
+ struct encoder_state* state = (struct encoder_state*) malloc(sizeof(struct encoder_state));
+ AMREncodeInit(&state->encCtx, &state->pidSyncCtx, dtx);
+ return state;
+}
+
+void Encoder_Interface_exit(void* s) {
+ struct encoder_state* state = (struct encoder_state*) s;
+ AMREncodeExit(&state->encCtx, &state->pidSyncCtx);
+ free(state);
+}
+
+int Encoder_Interface_Encode(void* s, enum Mode mode, const short* speech, unsigned char* out, int forceSpeech) {
+ struct encoder_state* state = (struct encoder_state*) s;
+ enum Frame_Type_3GPP frame_type = (enum Frame_Type_3GPP) mode;
+ int ret = AMREncode(state->encCtx, state->pidSyncCtx, mode, (Word16*) speech, out, &frame_type, AMR_TX_IETF);
+ out[0] |= 0x04;
+ return ret;
+}
+
--- /dev/null
+# Just set OC_BASE to the opencore root, or set AMR_BASE directly to
+# a detached gsm_amr directory
+OC_BASE = ../opencore
+AMR_BASE = $(OC_BASE)/codecs_v2/audio/gsm_amr
+LIBDIR=lib
+BINDIR=bin
+
+# To compile as C instead of C++, define BUILD_AS_C
+ifneq (, $(BUILD_AS_C))
+ CXX = $(CC)
+ CXXFLAGS += -x c -std=c99
+endif
+
+ifeq (, $(PREFIX))
+ PREFIX = /usr/local
+endif
+
+DEC_DIR = $(AMR_BASE)/amr_wb/dec
+DEC_SRC_DIR = $(DEC_DIR)/src
+OSCL = ../oscl
+
+CPPFLAGS = -I$(OSCL) -I$(DEC_SRC_DIR) -I$(DEC_DIR)/include -I$(AMR_BASE)/common/dec/include
+
+# Find all the source files
+# Exclude only decoder_amr_wb.cpp, not dtx_decoder_amr_wb.cpp
+DEC_SRC := $(shell cd $(DEC_SRC_DIR) && echo *.cpp | sed 's/ decoder_amr_wb.cpp//')
+
+DEC_OBJS := $(DEC_SRC:.cpp=.o)
+DEC_OBJS := $(patsubst %,$(DEC_SRC_DIR)/%, $(DEC_OBJS))
+
+OBJS = wrapper.o $(DEC_OBJS)
+SOBJS = $(OBJS:%.o=%.lo)
+
+#Versioning
+MAJOR = 0
+MINOR = 1
+REVISION = 1
+VERSION = $(MAJOR).$(MINOR).$(REVISION)
+
+ifeq ($(shell uname), Darwin)
+ SHLIB_EXT = dylib
+ SHLIB_FLAGS = -dynamiclib
+else
+ ifeq ($(shell uname | sed -e 's/\(MINGW32_NT\)\(.*\)/\1/'), MINGW32_NT)
+ SHLIB_EXT = $(MAJOR).$(MINOR).$(REVISION).dll
+ SHLIB_FLAGS = -shared
+ SONAME = libopencore-amrwb-$(MAJOR).dll
+ else
+ SHLIB_EXT = so.$(MAJOR).$(MINOR).$(REVISION)
+ SHLIB_FLAGS = -shared
+ SONAME = libopencore-amrwb.so.$(MAJOR)
+ endif
+endif
+SHLIB = libopencore-amrwb.$(SHLIB_EXT)
+
+all: libopencore-amrwb.a $(SHLIB)
+
+$(SHLIB): $(SOBJS)
+ifeq ($(shell uname), Darwin)
+ $(CXX) $(SHLIB_FLAGS) -o $@ $+ $(LDFLAGS)
+else
+ $(CXX) $(SHLIB_FLAGS) -o $@ $+ -Wl,-soname,$(SONAME) $(LDFLAGS)
+endif
+
+%.lo: %.c
+ $(CC) $(CPPFLAGS) $(CFLAGS) -fPIC -DPIC -c $< -o $@
+
+%.lo: %.cpp
+ $(CXX) $(CPPFLAGS) $(CXXFLAGS) -fPIC -DPIC -c $< -o $@
+
+libopencore-amrwb.a: $(OBJS)
+ ar rcs $@ $+
+
+install: libopencore-amrwb.a $(SHLIB)
+ install -d $(DESTDIR)$(PREFIX)/$(LIBDIR)
+ install -m 644 libopencore-amrwb.a $(DESTDIR)$(PREFIX)/$(LIBDIR)
+ifeq ($(shell uname | sed -e 's/\(MINGW32_NT\)\(.*\)/\1/'), MINGW32_NT)
+ install -d $(DESTDIR)$(PREFIX)/$(BINDIR)
+ install $(SHLIB) $(DESTDIR)$(PREFIX)/$(BINDIR)
+else
+ install $(SHLIB) $(DESTDIR)$(PREFIX)/$(LIBDIR)
+endif
+ifneq ($(shell uname), Darwin)
+ifeq ($(shell uname | sed -e 's/\(MINGW32_NT\)\(.*\)/\1/'), MINGW32_NT)
+ ln -sf $(SHLIB) $(DESTDIR)$(PREFIX)/$(BINDIR)/$(SONAME)
+ ln -sf $(DESTDIR)$(PREFIX)/$(BINDIR)/$(SONAME) $(DESTDIR)$(PREFIX)/$(BINDIR)/libopencore-amrwb.dll
+else
+ ln -sf $(SHLIB) $(DESTDIR)$(PREFIX)/$(LIBDIR)/$(SONAME)
+ ln -sf $(SONAME) $(DESTDIR)$(PREFIX)/$(LIBDIR)/libopencore-amrwb.so
+endif
+endif
+ install -d $(DESTDIR)$(PREFIX)/include/opencore-amrwb
+ install -m 644 dec_if.h $(DESTDIR)$(PREFIX)/include/opencore-amrwb
+ install -m 644 if_rom.h $(DESTDIR)$(PREFIX)/include/opencore-amrwb
+
+clean:
+ rm -f $(SHLIB) libopencore-amrwb.a *.o *.lo $(OBJS) $(SOBJS)
+
--- /dev/null
+# Just set OC_BASE to the opencore root, or set AMR_BASE directly to
+# a detached gsm_amr directory
+OC_BASE = $(top_srcdir)/opencore
+AMR_BASE = $(OC_BASE)/codecs_v2/audio/gsm_amr
+
+DEC_DIR = $(AMR_BASE)/amr_wb/dec
+DEC_SRC_DIR = $(DEC_DIR)/src
+OSCL = $(top_srcdir)/oscl
+
+AM_CFLAGS = -I$(OSCL) -I$(DEC_SRC_DIR) -I$(DEC_DIR)/include \
+ -I$(AMR_BASE)/common/dec/include
+
+if COMPILE_AS_C
+ AM_CFLAGS += -x c -std=c99
+endif
+
+AM_CXXFLAGS = $(AM_CFLAGS)
+
+amrwbincludedir = $(includedir)/opencore-amrwb
+amrwbinclude_HEADERS = dec_if.h if_rom.h
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = opencore-amrwb.pc
+
+lib_LTLIBRARIES = libopencore-amrwb.la
+
+libopencore_amrwb_la_LDFLAGS = -version-info @OPENCORE_AMRWB_VERSION@
+
+# Our sources to include. There are certain sources we exclude and they are
+# $(DEC_SRC_DIR)/decoder_amr_wb.cpp
+libopencore_amrwb_la_SOURCES = \
+ wrapper.cpp \
+ $(DEC_SRC_DIR)/agc2_amr_wb.cpp \
+ $(DEC_SRC_DIR)/band_pass_6k_7k.cpp \
+ $(DEC_SRC_DIR)/dec_acelp_2p_in_64.cpp \
+ $(DEC_SRC_DIR)/dec_acelp_4p_in_64.cpp \
+ $(DEC_SRC_DIR)/dec_alg_codebook.cpp \
+ $(DEC_SRC_DIR)/dec_gain2_amr_wb.cpp \
+ $(DEC_SRC_DIR)/deemphasis_32.cpp \
+ $(DEC_SRC_DIR)/dtx_decoder_amr_wb.cpp \
+ $(DEC_SRC_DIR)/get_amr_wb_bits.cpp \
+ $(DEC_SRC_DIR)/highpass_400hz_at_12k8.cpp \
+ $(DEC_SRC_DIR)/highpass_50hz_at_12k8.cpp \
+ $(DEC_SRC_DIR)/homing_amr_wb_dec.cpp \
+ $(DEC_SRC_DIR)/interpolate_isp.cpp \
+ $(DEC_SRC_DIR)/isf_extrapolation.cpp \
+ $(DEC_SRC_DIR)/isp_az.cpp \
+ $(DEC_SRC_DIR)/isp_isf.cpp \
+ $(DEC_SRC_DIR)/lagconceal.cpp \
+ $(DEC_SRC_DIR)/low_pass_filt_7k.cpp \
+ $(DEC_SRC_DIR)/median5.cpp \
+ $(DEC_SRC_DIR)/mime_io.cpp \
+ $(DEC_SRC_DIR)/noise_gen_amrwb.cpp \
+ $(DEC_SRC_DIR)/normalize_amr_wb.cpp \
+ $(DEC_SRC_DIR)/oversamp_12k8_to_16k.cpp \
+ $(DEC_SRC_DIR)/phase_dispersion.cpp \
+ $(DEC_SRC_DIR)/pit_shrp.cpp \
+ $(DEC_SRC_DIR)/pred_lt4.cpp \
+ $(DEC_SRC_DIR)/preemph_amrwb_dec.cpp \
+ $(DEC_SRC_DIR)/pvamrwbdecoder.cpp \
+ $(DEC_SRC_DIR)/pvamrwb_math_op.cpp \
+ $(DEC_SRC_DIR)/q_gain2_tab.cpp \
+ $(DEC_SRC_DIR)/qisf_ns.cpp \
+ $(DEC_SRC_DIR)/qisf_ns_tab.cpp \
+ $(DEC_SRC_DIR)/qpisf_2s.cpp \
+ $(DEC_SRC_DIR)/qpisf_2s_tab.cpp \
+ $(DEC_SRC_DIR)/scale_signal.cpp \
+ $(DEC_SRC_DIR)/synthesis_amr_wb.cpp \
+ $(DEC_SRC_DIR)/voice_factor.cpp \
+ $(DEC_SRC_DIR)/wb_syn_filt.cpp \
+ $(DEC_SRC_DIR)/weight_amrwb_lpc.cpp
+
+EXTRA_DIST = Makefile.alt
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#ifndef OPENCORE_AMRWB_DEC_IF_H
+#define OPENCORE_AMRWB_DEC_IF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define _good_frame 0
+
+void* D_IF_init(void);
+void D_IF_decode(void* state, const unsigned char* bits, short* synth, int bfi);
+void D_IF_exit(void* state);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#ifndef OPENCORE_AMRWB_IF_ROM_H
+#define OPENCORE_AMRWB_IF_ROM_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+typedef int16_t Word16;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@/opencore-amrwb
+
+Name: OpenCORE AMR-WB
+Description: Adaptive Multi-Rate Wideband speech codec library
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lopencore-amrwb
+Cflags: -I${includedir}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#include "dec_if.h"
+#include <stdlib.h>
+#include <string.h>
+#include <pvamrwbdecoder_api.h>
+#include <pvamrwbdecoder.h>
+#include <pvamrwbdecoder_cnst.h>
+#include <dtx.h>
+
+/* This is basically a C rewrite of decode_amr_wb.cpp */
+
+struct state {
+ void *st; /* State structure */
+ unsigned char *pt_st;
+ int16 *ScratchMem;
+
+ uint8* iInputBuf;
+ int16* iInputSampleBuf;
+ int16* iOutputBuf;
+
+ uint8 quality;
+ int16 mode;
+ int16 mode_old;
+ int16 frame_type;
+
+ int16 reset_flag;
+ int16 reset_flag_old;
+ int16 status;
+ RX_State rx_state;
+};
+
+void* D_IF_init(void) {
+ struct state* state = (struct state*) malloc(sizeof(struct state));
+ memset(state, 0, sizeof(*state));
+
+ state->iInputSampleBuf = (int16*) malloc(sizeof(int16)*KAMRWB_NB_BITS_MAX);
+ state->reset_flag = 0;
+ state->reset_flag_old = 1;
+ state->mode_old = 0;
+ state->rx_state.prev_ft = RX_SPEECH_GOOD;
+ state->rx_state.prev_mode = 0;
+ state->pt_st = (unsigned char*) malloc(pvDecoder_AmrWbMemRequirements());
+
+ pvDecoder_AmrWb_Init(&state->st, state->pt_st, &state->ScratchMem);
+ return state;
+}
+
+void D_IF_exit(void* s) {
+ struct state* state = (struct state*) s;
+ free(state->pt_st);
+ free(state->iInputSampleBuf);
+ free(state);
+}
+
+void D_IF_decode(void* s, const unsigned char* in, short* out, int bfi) {
+ struct state* state = (struct state*) s;
+
+ state->mode = (in[0] >> 3) & 0x0f;
+ in++;
+
+ state->quality = 1; /* ? */
+ mime_unsorting((uint8*) in, state->iInputSampleBuf, &state->frame_type, &state->mode, state->quality, &state->rx_state);
+
+ if ((state->frame_type == RX_NO_DATA) | (state->frame_type == RX_SPEECH_LOST)) {
+ state->mode = state->mode_old;
+ state->reset_flag = 0;
+ } else {
+ state->mode_old = state->mode;
+
+ /* if homed: check if this frame is another homing frame */
+ if (state->reset_flag_old == 1) {
+ /* only check until end of first subframe */
+ state->reset_flag = pvDecoder_AmrWb_homing_frame_test_first(state->iInputSampleBuf, state->mode);
+ }
+ }
+
+ /* produce encoder homing frame if homed & input=decoder homing frame */
+ if ((state->reset_flag != 0) && (state->reset_flag_old != 0)) {
+ /* set homing sequence ( no need to decode anything */
+
+ for (int16 i = 0; i < AMR_WB_PCM_FRAME; i++) {
+ out[i] = EHF_MASK;
+ }
+ } else {
+ int16 frameLength;
+ state->status = pvDecoder_AmrWb(state->mode,
+ state->iInputSampleBuf,
+ out,
+ &frameLength,
+ state->st,
+ state->frame_type,
+ state->ScratchMem);
+ }
+
+ for (int16 i = 0; i < AMR_WB_PCM_FRAME; i++) { /* Delete the 2 LSBs (14-bit output) */
+ out[i] &= 0xfffC;
+ }
+
+ /* if not homed: check whether current frame is a homing frame */
+ if (state->reset_flag_old == 0) {
+ /* check whole frame */
+ state->reset_flag = pvDecoder_AmrWb_homing_frame_test(state->iInputSampleBuf, state->mode);
+ }
+ /* reset decoder if current frame is a homing frame */
+ if (state->reset_flag != 0) {
+ pvDecoder_AmrWb_Reset(state->st, 1);
+ }
+ state->reset_flag_old = state->reset_flag;
+
+}
+
--- /dev/null
+#! /bin/sh
+libtoolize --copy --force
+aclocal -I m4
+autoheader
+autoconf
+automake -a -c
--- /dev/null
+#!/bin/sh
+
+export CFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4 -arch ppc -arch i386"
+export CXXFLAGS="$CFLAGS"
+export LDFLAGS="-Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4 -arch ppc -arch i386"
+export BUILD_AS_C=1
+
+make -f Makefile.alt -C amrnb "$@" || exit 1
+make -f Makefile.alt -C amrwb "$@" || exit 1
+
--- /dev/null
+/* config.h.in. Generated from configure.ac by autoheader. */
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the `m' library (-lm). */
+#undef HAVE_LIBM
+
+/* Define to 1 if your system has a GNU libc compatible `malloc' function, and
+ to 0 otherwise. */
+#undef HAVE_MALLOC
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the `memset' function. */
+#undef HAVE_MEMSET
+
+/* Define to 1 if stdbool.h conforms to C99. */
+#undef HAVE_STDBOOL_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to 1 if the system has the type `_Bool'. */
+#undef HAVE__BOOL
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+ */
+#undef LT_OBJDIR
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Version number of package */
+#undef VERSION
+
+/* Define for Solaris 2.5.1 so the uint32_t typedef from <sys/synch.h>,
+ <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+ #define below would cause a syntax error. */
+#undef _UINT32_T
+
+/* Define for Solaris 2.5.1 so the uint64_t typedef from <sys/synch.h>,
+ <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+ #define below would cause a syntax error. */
+#undef _UINT64_T
+
+/* Define for Solaris 2.5.1 so the uint8_t typedef from <sys/synch.h>,
+ <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+ #define below would cause a syntax error. */
+#undef _UINT8_T
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+ calls it, or to nothing if 'inline' is not supported under any name. */
+#ifndef __cplusplus
+#undef inline
+#endif
+
+/* Define to the type of a signed integer type of width exactly 16 bits if
+ such a type exists and the standard includes do not define it. */
+#undef int16_t
+
+/* Define to the type of a signed integer type of width exactly 32 bits if
+ such a type exists and the standard includes do not define it. */
+#undef int32_t
+
+/* Define to the type of a signed integer type of width exactly 64 bits if
+ such a type exists and the standard includes do not define it. */
+#undef int64_t
+
+/* Define to the type of a signed integer type of width exactly 8 bits if such
+ a type exists and the standard includes do not define it. */
+#undef int8_t
+
+/* Define to rpl_malloc if the replacement function should be used. */
+#undef malloc
+
+/* Define to the type of an unsigned integer type of width exactly 16 bits if
+ such a type exists and the standard includes do not define it. */
+#undef uint16_t
+
+/* Define to the type of an unsigned integer type of width exactly 32 bits if
+ such a type exists and the standard includes do not define it. */
+#undef uint32_t
+
+/* Define to the type of an unsigned integer type of width exactly 64 bits if
+ such a type exists and the standard includes do not define it. */
+#undef uint64_t
+
+/* Define to the type of an unsigned integer type of width exactly 8 bits if
+ such a type exists and the standard includes do not define it. */
+#undef uint8_t
--- /dev/null
+# -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_INIT([opencore-amr], [0.1.2], [https://sourceforge.net/apps/trac/opencore-amr/])
+AC_CONFIG_AUX_DIR(.)
+AC_CONFIG_MACRO_DIR([m4])
+AM_INIT_AUTOMAKE([tar-ustar])
+AC_CONFIG_HEADERS([config.h])
+AM_MAINTAINER_MODE
+
+# Cross compiling support
+AC_CANONICAL_BUILD
+AC_CANONICAL_HOST
+
+# Various options for configure
+AC_ARG_ENABLE([compile-c],
+ [AS_HELP_STRING([--enable-compile-c],
+ [enable compiling as C program (default is yes)])],
+ [compile_as_c=$enableval],
+ [compile_as_c=yes])
+
+# Automake conditionals to set
+AM_CONDITIONAL(COMPILE_AS_C, test x$compile_as_c = xyes)
+
+# Checks for programs.
+AC_PROG_CXX
+AC_PROG_CC
+AC_PROG_INSTALL
+AC_PROG_LN_S
+AC_PROG_MAKE_SET
+
+# Setup for libtool
+AC_PROG_LIBTOOL
+AC_SUBST(LIBTOOL_DEPS)
+
+# Checks for libraries.
+AC_CHECK_LIB([m], [main])
+
+# Checks for header files.
+AC_CHECK_HEADERS([stdint.h stdlib.h string.h])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_HEADER_STDBOOL
+AC_C_INLINE
+AC_TYPE_INT16_T
+AC_TYPE_INT32_T
+AC_TYPE_INT64_T
+AC_TYPE_INT8_T
+AC_TYPE_UINT16_T
+AC_TYPE_UINT32_T
+AC_TYPE_UINT64_T
+AC_TYPE_UINT8_T
+
+# Checks for library functions.
+AC_FUNC_MALLOC
+AC_CHECK_FUNCS([memset])
+
+# OpenCORE AMR soname version to use
+# goes by ‘current[:revision[:age]]’ with the soname ending up as
+# current.age.revision.
+OPENCORE_AMRNB_VERSION=0:2:0
+OPENCORE_AMRWB_VERSION=0:2:0
+AC_SUBST(OPENCORE_AMRNB_VERSION)
+AC_SUBST(OPENCORE_AMRWB_VERSION)
+
+AC_CONFIG_FILES([Makefile
+ amrnb/Makefile
+ amrwb/Makefile
+ test/Makefile
+ amrnb/opencore-amrnb.pc
+ amrwb/opencore-amrwb.pc])
+AC_OUTPUT
--- /dev/null
+opencore-amr (0.1.2-2) unstable; urgency=low
+
+ * Remove unused option
+ * Git: unmodified/opencore-amr
+ * Tag: opencore-amr_0.1.2-2
+
+ -- Jeongmo Yang <jm80.yang@samsung.com> Wed, 21 Dec 2011 17:51:55 +0900
+
+opencore-amr (0.1.2-1) unstable; urgency=low
+
+ * Initial release
+ * Git: unmodified/opencore-amr
+ * Tag: opencore-amr_0.1.2-1
+
+ -- Jeongmo Yang <jm80.yang@samsung.com> Thu, 10 Nov 2011 16:13:24 +0900
--- /dev/null
+Source: opencore-amr
+Section: libs
+Priority: extra
+Maintainer: Debian multimedia packages maintainers <pkg-multimedia-maintainers@lists.alioth.debian.org>
+Uploaders: Jeongmo Yang <jm80.yang@samsung.com>
+Build-Depends: debhelper (>= 5), autotools-dev
+Standards-Version: 3.7.2
+
+Package: libopencore-amrnb-dev
+Section: libdevel
+Architecture: any
+Depends: libopencore-amrnb (= ${Source-Version})
+XB-Generate-Docs: yes
+Description: opencore AMRNB dev package
+
+Package: libopencore-amrnb
+Section: libs
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: opencore AMRNB Library
+
+Package: libopencore-amrnb-dbg
+Section: debug
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}, libopencore-amrnb (= ${Source-Version})
+Description: opencore AMRNB Debug Library (unstripped)
+
+Package: libopencore-amrwb-dev
+Section: libdevel
+Architecture: any
+Depends: libopencore-amrwb (= ${Source-Version})
+XB-Generate-Docs: yes
+Description: opencore AMRWB dev package
+
+Package: libopencore-amrwb
+Section: libs
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: opencore AMRWB Library
+
+Package: libopencore-amrwb-dbg
+Section: debug
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}, libopencore-amrwb (= ${Source-Version})
+Description: opencore AMRWB Debug Library (unstripped)
+
--- /dev/null
+Files: debian/*
+Copyright: 2011 Jeongmo Yang <jm80.yang@samsung.com>
+License: Apache Version 2.0
+
+This package was debianized by Jeongmo Yang <jm80.yang@samsung.com> on
+Thu, 10 Nov 2011 16:22:18 +0900.
+
+Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
--- /dev/null
+# if your module creates shared libraries
+@PREFIX@/include/opencore-amrnb
+@PREFIX@/lib/libopencore-amrnb.a
+@PREFIX@/lib/libopencore-amrnb.so
+@PREFIX@/lib/pkgconfig/opencore-amrnb.pc
--- /dev/null
+# if your module, creates shared libraries
+@PREFIX@/lib/libopencore-amrnb.so.*
--- /dev/null
+# if your module creates shared libraries
+@PREFIX@/include/opencore-amrwb
+@PREFIX@/lib/libopencore-amrwb.a
+@PREFIX@/lib/libopencore-amrwb.so
+@PREFIX@/lib/pkgconfig/opencore-amrwb.pc
--- /dev/null
+# if your module, creates shared libraries
+@PREFIX@/lib/libopencore-amrwb.so.*
--- /dev/null
+#!/usr/bin/make -f
+# -*- makefile -*-
+# Sample debian/rules that uses debhelper.
+# This file was originally written by Joey Hess and Craig Small.
+# As a special exception, when this file is copied by dh-make into a
+# dh-make output file, you may use that output file without restriction.
+# This special exception was added by Craig Small in version 0.37 of dh-make.
+
+# Uncomment this to turn on verbose mode.
+#export DH_VERBOSE=1
+
+
+# These are used for cross-compiling and for saving the configure script
+# from having to guess our platform (since we know it already)
+DEB_HOST_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
+DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
+DEB_HOST_ARCH ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
+DEB_HOST_ARCH_OS ?= $(shell dpkg-architecture -qDEB_HOST_GNU_OS)
+
+CFLAGS = -Wall -g
+LDFLAGS ?=
+PREFIX ?= /usr
+
+ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
+ CFLAGS += -O0
+else
+ CFLAGS += -O2
+endif
+
+CFLAGS += -fPIC
+LDFLAGS +=-Wl,--rpath=$(PREFIX)/lib -Wl,--as-needed -Wl,-z,defs -Wl,--hash-style=both
+
+# shared library versions, option 1
+version=2.0.5
+major=2
+# option 2, assuming the library is created as src/.libs/libfoo.so.2.0.5 or so
+#version=`ls src/.libs/lib*.so.* | \
+# awk '{if (match($$0,/[0-9]+\.[0-9]+\.[0-9]+$$/)) print substr($$0,RSTART)}'`
+#major=`ls src/.libs/lib*.so.* | \
+# awk '{if (match($$0,/\.so\.[0-9]+$$/)) print substr($$0,RSTART+4)}'`
+
+configure: configure.ac
+ ./autogen.sh
+
+config.status: configure
+ dh_testdir
+ # Add here commands to configure the package.
+ ./configure --prefix=/usr --mandir=\$${prefix}/share/man --infodir=\$${prefix}/share/info CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)"
+
+
+build: build-stamp
+build-stamp: config.status
+ dh_testdir
+
+ # Add here commands to compile the package.
+ $(MAKE)
+
+ for f in `find $(CURDIR)/debian/ -name "*.in"`; do \
+ cat $$f > $${f%.in}; \
+ sed -i -e "s#@PREFIX@#$(PREFIX)#g" $${f%.in}; \
+ sed -i -e "s#@DATADIR@#$(DATADIR)#g" $${f%.in}; \
+ done
+
+ touch $@
+
+clean:
+ dh_testdir
+ dh_testroot
+ rm -f build-stamp
+
+ # Add here commands to clean up after the build process.
+ -$(MAKE) distclean
+ifneq "$(wildcard /usr/share/misc/config.sub)" ""
+ cp -f /usr/share/misc/config.sub config.sub
+endif
+ifneq "$(wildcard /usr/share/misc/config.guess)" ""
+ cp -f /usr/share/misc/config.guess config.guess
+endif
+
+ for f in `find $(CURDIR)/debian/ -name "*.in"`; do \
+ rm -f $${f%.in}; \
+ done
+
+ dh_clean
+
+install: build
+ dh_testdir
+ dh_testroot
+ dh_clean -k
+ dh_installdirs
+
+ # Add here commands to install the package into debian/tmp
+ $(MAKE) DESTDIR=$(CURDIR)/debian/tmp install
+
+
+# Build architecture-independent files here.
+binary-indep: build install
+# We have nothing to do by default.
+
+# Build architecture-dependent files here.
+binary-arch: build install
+ dh_testdir
+ dh_testroot
+ dh_installchangelogs
+ dh_installdocs
+ dh_installexamples
+ dh_install --sourcedir=debian/tmp
+# dh_installmenu
+# dh_installdebconf
+# dh_installlogrotate
+# dh_installemacsen
+# dh_installpam
+# dh_installmime
+# dh_installinit
+# dh_installcron
+# dh_installinfo
+ dh_installman
+ dh_link
+ dh_strip -plibopencore-amrnb --dbg-package=libopencore-amrnb-dbg
+ dh_strip -plibopencore-amrwb --dbg-package=libopencore-amrwb-dbg
+ dh_compress
+ dh_fixperms
+# dh_perl
+# dh_python
+ dh_makeshlibs
+ dh_installdeb
+ dh_shlibdeps
+ dh_gencontrol
+ dh_md5sums
+ dh_builddeb
+
+binary: binary-indep binary-arch
+.PHONY: build clean binary-indep binary-arch binary install
--- /dev/null
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2009-04-28.21; # UTC
+
+# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
+# Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+case $1 in
+ '')
+ echo "$0: No command. Try \`$0 --help' for more information." 1>&2
+ exit 1;
+ ;;
+ -h | --h*)
+ cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+ depmode Dependency tracking mode.
+ source Source file read by `PROGRAMS ARGS'.
+ object Object file output by `PROGRAMS ARGS'.
+ DEPDIR directory where to store dependencies.
+ depfile Dependency file to output.
+ tmpdepfile Temporary file to use when outputing dependencies.
+ libtool Whether libtool is used (yes/no).
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+ exit $?
+ ;;
+ -v | --v*)
+ echo "depcomp $scriptversion"
+ exit $?
+ ;;
+esac
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+ echo "depcomp: Variables source, object and depmode must be set" 1>&2
+ exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+ sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Some modes work just like other modes, but use different flags. We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write. Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+ # HP compiler uses -M and no extra arg.
+ gccflag=-M
+ depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+ # This is just like dashmstdout with a different argument.
+ dashmflag=-xM
+ depmode=dashmstdout
+fi
+
+cygpath_u="cygpath -u -f -"
+if test "$depmode" = msvcmsys; then
+ # This is just like msvisualcpp but w/o cygpath translation.
+ # Just convert the backslash-escaped backslashes to single forward
+ # slashes to satisfy depend.m4
+ cygpath_u="sed s,\\\\\\\\,/,g"
+ depmode=msvisualcpp
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want. Yay! Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff. Hmm.
+## Unfortunately, FreeBSD c89 acceptance of flags depends upon
+## the command line argument order; so add the flags where they
+## appear in depend2.am. Note that the slowdown incurred here
+## affects only configure: in makefiles, %FASTDEP% shortcuts this.
+ for arg
+ do
+ case $arg in
+ -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
+ *) set fnord "$@" "$arg" ;;
+ esac
+ shift # fnord
+ shift # $arg
+ done
+ "$@"
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ mv "$tmpdepfile" "$depfile"
+ ;;
+
+gcc)
+## There are various ways to get dependency output from gcc. Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+## up in a subdir. Having to rename by hand is ugly.
+## (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+## -MM, not -M (despite what the docs say).
+## - Using -M directly means running the compiler twice (even worse
+## than renaming).
+ if test -z "$gccflag"; then
+ gccflag=-MD,
+ fi
+ "$@" -Wp,"$gccflag$tmpdepfile"
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
+## The second -e expression handles DOS-style file names with drive letters.
+ sed -e 's/^[^:]*: / /' \
+ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the `deleted header file' problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header). We avoid this by adding
+## dummy dependencies for each header file. Too bad gcc doesn't do
+## this for us directly.
+ tr ' ' '
+' < "$tmpdepfile" |
+## Some versions of gcc put a space before the `:'. On the theory
+## that the space means something, we add a space to the output as
+## well.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly. Breaking it into two sed invocations is a workaround.
+ sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+hp)
+ # This case exists only to let depend.m4 do its work. It works by
+ # looking at the text of this script. This case will never be run,
+ # since it is checked for above.
+ exit 1
+ ;;
+
+sgi)
+ if test "$libtool" = yes; then
+ "$@" "-Wp,-MDupdate,$tmpdepfile"
+ else
+ "$@" -MDupdate "$tmpdepfile"
+ fi
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+
+ if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
+ echo "$object : \\" > "$depfile"
+
+ # Clip off the initial element (the dependent). Don't try to be
+ # clever and replace this with sed code, as IRIX sed won't handle
+ # lines with more than a fixed number of characters (4096 in
+ # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
+ # the IRIX cc adds comments like `#:fec' to the end of the
+ # dependency line.
+ tr ' ' '
+' < "$tmpdepfile" \
+ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
+ tr '
+' ' ' >> "$depfile"
+ echo >> "$depfile"
+
+ # The second pass generates a dummy entry for each header file.
+ tr ' ' '
+' < "$tmpdepfile" \
+ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+ >> "$depfile"
+ else
+ # The sourcefile does not contain any dependencies, so just
+ # store a dummy comment line, to avoid errors with the Makefile
+ # "include basename.Plo" scheme.
+ echo "#dummy" > "$depfile"
+ fi
+ rm -f "$tmpdepfile"
+ ;;
+
+aix)
+ # The C for AIX Compiler uses -M and outputs the dependencies
+ # in a .u file. In older versions, this file always lives in the
+ # current directory. Also, the AIX compiler puts `$object:' at the
+ # start of each line; $object doesn't have directory information.
+ # Version 6 uses the directory in both cases.
+ dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+ test "x$dir" = "x$object" && dir=
+ base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+ if test "$libtool" = yes; then
+ tmpdepfile1=$dir$base.u
+ tmpdepfile2=$base.u
+ tmpdepfile3=$dir.libs/$base.u
+ "$@" -Wc,-M
+ else
+ tmpdepfile1=$dir$base.u
+ tmpdepfile2=$dir$base.u
+ tmpdepfile3=$dir$base.u
+ "$@" -M
+ fi
+ stat=$?
+
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+ exit $stat
+ fi
+
+ for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+ do
+ test -f "$tmpdepfile" && break
+ done
+ if test -f "$tmpdepfile"; then
+ # Each line is of the form `foo.o: dependent.h'.
+ # Do two passes, one to just change these to
+ # `$object: dependent.h' and one to simply `dependent.h:'.
+ sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+ # That's a tab and a space in the [].
+ sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+ else
+ # The sourcefile does not contain any dependencies, so just
+ # store a dummy comment line, to avoid errors with the Makefile
+ # "include basename.Plo" scheme.
+ echo "#dummy" > "$depfile"
+ fi
+ rm -f "$tmpdepfile"
+ ;;
+
+icc)
+ # Intel's C compiler understands `-MD -MF file'. However on
+ # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
+ # ICC 7.0 will fill foo.d with something like
+ # foo.o: sub/foo.c
+ # foo.o: sub/foo.h
+ # which is wrong. We want:
+ # sub/foo.o: sub/foo.c
+ # sub/foo.o: sub/foo.h
+ # sub/foo.c:
+ # sub/foo.h:
+ # ICC 7.1 will output
+ # foo.o: sub/foo.c sub/foo.h
+ # and will wrap long lines using \ :
+ # foo.o: sub/foo.c ... \
+ # sub/foo.h ... \
+ # ...
+
+ "$@" -MD -MF "$tmpdepfile"
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+ # Each line is of the form `foo.o: dependent.h',
+ # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+ # Do two passes, one to just change these to
+ # `$object: dependent.h' and one to simply `dependent.h:'.
+ sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+ # Some versions of the HPUX 10.20 sed can't process this invocation
+ # correctly. Breaking it into two sed invocations is a workaround.
+ sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
+ sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+hp2)
+ # The "hp" stanza above does not work with aCC (C++) and HP's ia64
+ # compilers, which have integrated preprocessors. The correct option
+ # to use with these is +Maked; it writes dependencies to a file named
+ # 'foo.d', which lands next to the object file, wherever that
+ # happens to be.
+ # Much of this is similar to the tru64 case; see comments there.
+ dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+ test "x$dir" = "x$object" && dir=
+ base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+ if test "$libtool" = yes; then
+ tmpdepfile1=$dir$base.d
+ tmpdepfile2=$dir.libs/$base.d
+ "$@" -Wc,+Maked
+ else
+ tmpdepfile1=$dir$base.d
+ tmpdepfile2=$dir$base.d
+ "$@" +Maked
+ fi
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile1" "$tmpdepfile2"
+ exit $stat
+ fi
+
+ for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
+ do
+ test -f "$tmpdepfile" && break
+ done
+ if test -f "$tmpdepfile"; then
+ sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
+ # Add `dependent.h:' lines.
+ sed -ne '2,${
+ s/^ *//
+ s/ \\*$//
+ s/$/:/
+ p
+ }' "$tmpdepfile" >> "$depfile"
+ else
+ echo "#dummy" > "$depfile"
+ fi
+ rm -f "$tmpdepfile" "$tmpdepfile2"
+ ;;
+
+tru64)
+ # The Tru64 compiler uses -MD to generate dependencies as a side
+ # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+ # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+ # dependencies in `foo.d' instead, so we check for that too.
+ # Subdirectories are respected.
+ dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
+ test "x$dir" = "x$object" && dir=
+ base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
+
+ if test "$libtool" = yes; then
+ # With Tru64 cc, shared objects can also be used to make a
+ # static library. This mechanism is used in libtool 1.4 series to
+ # handle both shared and static libraries in a single compilation.
+ # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
+ #
+ # With libtool 1.5 this exception was removed, and libtool now
+ # generates 2 separate objects for the 2 libraries. These two
+ # compilations output dependencies in $dir.libs/$base.o.d and
+ # in $dir$base.o.d. We have to check for both files, because
+ # one of the two compilations can be disabled. We should prefer
+ # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+ # automatically cleaned when .libs/ is deleted, while ignoring
+ # the former would cause a distcleancheck panic.
+ tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
+ tmpdepfile2=$dir$base.o.d # libtool 1.5
+ tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
+ tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
+ "$@" -Wc,-MD
+ else
+ tmpdepfile1=$dir$base.o.d
+ tmpdepfile2=$dir$base.d
+ tmpdepfile3=$dir$base.d
+ tmpdepfile4=$dir$base.d
+ "$@" -MD
+ fi
+
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+ exit $stat
+ fi
+
+ for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
+ do
+ test -f "$tmpdepfile" && break
+ done
+ if test -f "$tmpdepfile"; then
+ sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+ # That's a tab and a space in the [].
+ sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+ else
+ echo "#dummy" > "$depfile"
+ fi
+ rm -f "$tmpdepfile"
+ ;;
+
+#nosideeffect)
+ # This comment above is used by automake to tell side-effect
+ # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the preprocessed file to stdout, regardless of -o.
+ "$@" || exit $?
+
+ # Remove the call to Libtool.
+ if test "$libtool" = yes; then
+ while test "X$1" != 'X--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+
+ # Remove `-o $object'.
+ IFS=" "
+ for arg
+ do
+ case $arg in
+ -o)
+ shift
+ ;;
+ $object)
+ shift
+ ;;
+ *)
+ set fnord "$@" "$arg"
+ shift # fnord
+ shift # $arg
+ ;;
+ esac
+ done
+
+ test -z "$dashmflag" && dashmflag=-M
+ # Require at least two characters before searching for `:'
+ # in the target name. This is to cope with DOS-style filenames:
+ # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
+ "$@" $dashmflag |
+ sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
+ rm -f "$depfile"
+ cat < "$tmpdepfile" > "$depfile"
+ tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly. Breaking it into two sed invocations is a workaround.
+ sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+dashXmstdout)
+ # This case only exists to satisfy depend.m4. It is never actually
+ # run, as this mode is specially recognized in the preamble.
+ exit 1
+ ;;
+
+makedepend)
+ "$@" || exit $?
+ # Remove any Libtool call
+ if test "$libtool" = yes; then
+ while test "X$1" != 'X--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+ # X makedepend
+ shift
+ cleared=no eat=no
+ for arg
+ do
+ case $cleared in
+ no)
+ set ""; shift
+ cleared=yes ;;
+ esac
+ if test $eat = yes; then
+ eat=no
+ continue
+ fi
+ case "$arg" in
+ -D*|-I*)
+ set fnord "$@" "$arg"; shift ;;
+ # Strip any option that makedepend may not understand. Remove
+ # the object too, otherwise makedepend will parse it as a source file.
+ -arch)
+ eat=yes ;;
+ -*|$object)
+ ;;
+ *)
+ set fnord "$@" "$arg"; shift ;;
+ esac
+ done
+ obj_suffix=`echo "$object" | sed 's/^.*\././'`
+ touch "$tmpdepfile"
+ ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+ rm -f "$depfile"
+ cat < "$tmpdepfile" > "$depfile"
+ sed '1,2d' "$tmpdepfile" | tr ' ' '
+' | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly. Breaking it into two sed invocations is a workaround.
+ sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile" "$tmpdepfile".bak
+ ;;
+
+cpp)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the preprocessed file to stdout.
+ "$@" || exit $?
+
+ # Remove the call to Libtool.
+ if test "$libtool" = yes; then
+ while test "X$1" != 'X--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+
+ # Remove `-o $object'.
+ IFS=" "
+ for arg
+ do
+ case $arg in
+ -o)
+ shift
+ ;;
+ $object)
+ shift
+ ;;
+ *)
+ set fnord "$@" "$arg"
+ shift # fnord
+ shift # $arg
+ ;;
+ esac
+ done
+
+ "$@" -E |
+ sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+ -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
+ sed '$ s: \\$::' > "$tmpdepfile"
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ cat < "$tmpdepfile" >> "$depfile"
+ sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+msvisualcpp)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the preprocessed file to stdout.
+ "$@" || exit $?
+
+ # Remove the call to Libtool.
+ if test "$libtool" = yes; then
+ while test "X$1" != 'X--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+
+ IFS=" "
+ for arg
+ do
+ case "$arg" in
+ -o)
+ shift
+ ;;
+ $object)
+ shift
+ ;;
+ "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+ set fnord "$@"
+ shift
+ shift
+ ;;
+ *)
+ set fnord "$@" "$arg"
+ shift
+ shift
+ ;;
+ esac
+ done
+ "$@" -E 2>/dev/null |
+ sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
+ echo " " >> "$depfile"
+ sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+msvcmsys)
+ # This case exists only to let depend.m4 do its work. It works by
+ # looking at the text of this script. This case will never be run,
+ # since it is checked for above.
+ exit 1
+ ;;
+
+none)
+ exec "$@"
+ ;;
+
+*)
+ echo "Unknown depmode $depmode" 1>&2
+ exit 1
+ ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
--- /dev/null
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2009-04-28.21; # UTC
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+
+nl='
+'
+IFS=" "" $nl"
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit=${DOITPROG-}
+if test -z "$doit"; then
+ doit_exec=exec
+else
+ doit_exec=$doit
+fi
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_glob='?'
+initialize_posix_glob='
+ test "$posix_glob" != "?" || {
+ if (set -f) 2>/dev/null; then
+ posix_glob=
+ else
+ posix_glob=:
+ fi
+ }
+'
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
+
+src=
+dst=
+dir_arg=
+dst_arg=
+
+copy_on_change=false
+no_target_directory=
+
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+ or: $0 [OPTION]... SRCFILES... DIRECTORY
+ or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+ or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+ --help display this help and exit.
+ --version display version info and exit.
+
+ -c (ignored)
+ -C install only if different (preserve the last data modification time)
+ -d create directories instead of installing files.
+ -g GROUP $chgrpprog installed files to GROUP.
+ -m MODE $chmodprog installed files to MODE.
+ -o USER $chownprog installed files to USER.
+ -s $stripprog installed files.
+ -t DIRECTORY install into DIRECTORY.
+ -T report an error if DSTFILE is a directory.
+
+Environment variables override the default commands:
+ CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+ RMPROG STRIPPROG
+"
+
+while test $# -ne 0; do
+ case $1 in
+ -c) ;;
+
+ -C) copy_on_change=true;;
+
+ -d) dir_arg=true;;
+
+ -g) chgrpcmd="$chgrpprog $2"
+ shift;;
+
+ --help) echo "$usage"; exit $?;;
+
+ -m) mode=$2
+ case $mode in
+ *' '* | *' '* | *'
+'* | *'*'* | *'?'* | *'['*)
+ echo "$0: invalid mode: $mode" >&2
+ exit 1;;
+ esac
+ shift;;
+
+ -o) chowncmd="$chownprog $2"
+ shift;;
+
+ -s) stripcmd=$stripprog;;
+
+ -t) dst_arg=$2
+ shift;;
+
+ -T) no_target_directory=true;;
+
+ --version) echo "$0 $scriptversion"; exit $?;;
+
+ --) shift
+ break;;
+
+ -*) echo "$0: invalid option: $1" >&2
+ exit 1;;
+
+ *) break;;
+ esac
+ shift
+done
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+ # When -d is used, all remaining arguments are directories to create.
+ # When -t is used, the destination is already specified.
+ # Otherwise, the last argument is the destination. Remove it from $@.
+ for arg
+ do
+ if test -n "$dst_arg"; then
+ # $@ is not empty: it contains at least $arg.
+ set fnord "$@" "$dst_arg"
+ shift # fnord
+ fi
+ shift # arg
+ dst_arg=$arg
+ done
+fi
+
+if test $# -eq 0; then
+ if test -z "$dir_arg"; then
+ echo "$0: no input file specified." >&2
+ exit 1
+ fi
+ # It's OK to call `install-sh -d' without argument.
+ # This can happen when creating conditional directories.
+ exit 0
+fi
+
+if test -z "$dir_arg"; then
+ trap '(exit $?); exit' 1 2 13 15
+
+ # Set umask so as not to create temps with too-generous modes.
+ # However, 'strip' requires both read and write access to temps.
+ case $mode in
+ # Optimize common cases.
+ *644) cp_umask=133;;
+ *755) cp_umask=22;;
+
+ *[0-7])
+ if test -z "$stripcmd"; then
+ u_plus_rw=
+ else
+ u_plus_rw='% 200'
+ fi
+ cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+ *)
+ if test -z "$stripcmd"; then
+ u_plus_rw=
+ else
+ u_plus_rw=,u+rw
+ fi
+ cp_umask=$mode$u_plus_rw;;
+ esac
+fi
+
+for src
+do
+ # Protect names starting with `-'.
+ case $src in
+ -*) src=./$src;;
+ esac
+
+ if test -n "$dir_arg"; then
+ dst=$src
+ dstdir=$dst
+ test -d "$dstdir"
+ dstdir_status=$?
+ else
+
+ # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+ # might cause directories to be created, which would be especially bad
+ # if $src (and thus $dsttmp) contains '*'.
+ if test ! -f "$src" && test ! -d "$src"; then
+ echo "$0: $src does not exist." >&2
+ exit 1
+ fi
+
+ if test -z "$dst_arg"; then
+ echo "$0: no destination specified." >&2
+ exit 1
+ fi
+
+ dst=$dst_arg
+ # Protect names starting with `-'.
+ case $dst in
+ -*) dst=./$dst;;
+ esac
+
+ # If destination is a directory, append the input filename; won't work
+ # if double slashes aren't ignored.
+ if test -d "$dst"; then
+ if test -n "$no_target_directory"; then
+ echo "$0: $dst_arg: Is a directory" >&2
+ exit 1
+ fi
+ dstdir=$dst
+ dst=$dstdir/`basename "$src"`
+ dstdir_status=0
+ else
+ # Prefer dirname, but fall back on a substitute if dirname fails.
+ dstdir=`
+ (dirname "$dst") 2>/dev/null ||
+ expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$dst" : 'X\(//\)[^/]' \| \
+ X"$dst" : 'X\(//\)$' \| \
+ X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
+ echo X"$dst" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)[^/].*/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'
+ `
+
+ test -d "$dstdir"
+ dstdir_status=$?
+ fi
+ fi
+
+ obsolete_mkdir_used=false
+
+ if test $dstdir_status != 0; then
+ case $posix_mkdir in
+ '')
+ # Create intermediate dirs using mode 755 as modified by the umask.
+ # This is like FreeBSD 'install' as of 1997-10-28.
+ umask=`umask`
+ case $stripcmd.$umask in
+ # Optimize common cases.
+ *[2367][2367]) mkdir_umask=$umask;;
+ .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+ *[0-7])
+ mkdir_umask=`expr $umask + 22 \
+ - $umask % 100 % 40 + $umask % 20 \
+ - $umask % 10 % 4 + $umask % 2
+ `;;
+ *) mkdir_umask=$umask,go-w;;
+ esac
+
+ # With -d, create the new directory with the user-specified mode.
+ # Otherwise, rely on $mkdir_umask.
+ if test -n "$dir_arg"; then
+ mkdir_mode=-m$mode
+ else
+ mkdir_mode=
+ fi
+
+ posix_mkdir=false
+ case $umask in
+ *[123567][0-7][0-7])
+ # POSIX mkdir -p sets u+wx bits regardless of umask, which
+ # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+ ;;
+ *)
+ tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+ trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+ if (umask $mkdir_umask &&
+ exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+ then
+ if test -z "$dir_arg" || {
+ # Check for POSIX incompatibilities with -m.
+ # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+ # other-writeable bit of parent directory when it shouldn't.
+ # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+ ls_ld_tmpdir=`ls -ld "$tmpdir"`
+ case $ls_ld_tmpdir in
+ d????-?r-*) different_mode=700;;
+ d????-?--*) different_mode=755;;
+ *) false;;
+ esac &&
+ $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+ ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+ test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+ }
+ }
+ then posix_mkdir=:
+ fi
+ rmdir "$tmpdir/d" "$tmpdir"
+ else
+ # Remove any dirs left behind by ancient mkdir implementations.
+ rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+ fi
+ trap '' 0;;
+ esac;;
+ esac
+
+ if
+ $posix_mkdir && (
+ umask $mkdir_umask &&
+ $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+ )
+ then :
+ else
+
+ # The umask is ridiculous, or mkdir does not conform to POSIX,
+ # or it failed possibly due to a race condition. Create the
+ # directory the slow way, step by step, checking for races as we go.
+
+ case $dstdir in
+ /*) prefix='/';;
+ -*) prefix='./';;
+ *) prefix='';;
+ esac
+
+ eval "$initialize_posix_glob"
+
+ oIFS=$IFS
+ IFS=/
+ $posix_glob set -f
+ set fnord $dstdir
+ shift
+ $posix_glob set +f
+ IFS=$oIFS
+
+ prefixes=
+
+ for d
+ do
+ test -z "$d" && continue
+
+ prefix=$prefix$d
+ if test -d "$prefix"; then
+ prefixes=
+ else
+ if $posix_mkdir; then
+ (umask=$mkdir_umask &&
+ $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+ # Don't fail if two instances are running concurrently.
+ test -d "$prefix" || exit 1
+ else
+ case $prefix in
+ *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+ *) qprefix=$prefix;;
+ esac
+ prefixes="$prefixes '$qprefix'"
+ fi
+ fi
+ prefix=$prefix/
+ done
+
+ if test -n "$prefixes"; then
+ # Don't fail if two instances are running concurrently.
+ (umask $mkdir_umask &&
+ eval "\$doit_exec \$mkdirprog $prefixes") ||
+ test -d "$dstdir" || exit 1
+ obsolete_mkdir_used=true
+ fi
+ fi
+ fi
+
+ if test -n "$dir_arg"; then
+ { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+ { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+ { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+ test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+ else
+
+ # Make a couple of temp file names in the proper directory.
+ dsttmp=$dstdir/_inst.$$_
+ rmtmp=$dstdir/_rm.$$_
+
+ # Trap to clean up those temp files at exit.
+ trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+ # Copy the file name to the temp name.
+ (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+
+ # and set any options; do chmod last to preserve setuid bits.
+ #
+ # If any of these fail, we abort the whole thing. If we want to
+ # ignore errors from any of these, just make sure not to ignore
+ # errors from the above "$doit $cpprog $src $dsttmp" command.
+ #
+ { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+ { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+ { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+ { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+ # If -C, don't bother to copy if it wouldn't change the file.
+ if $copy_on_change &&
+ old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
+ new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
+
+ eval "$initialize_posix_glob" &&
+ $posix_glob set -f &&
+ set X $old && old=:$2:$4:$5:$6 &&
+ set X $new && new=:$2:$4:$5:$6 &&
+ $posix_glob set +f &&
+
+ test "$old" = "$new" &&
+ $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+ then
+ rm -f "$dsttmp"
+ else
+ # Rename the file to the real destination.
+ $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+ # The rename failed, perhaps because mv can't rename something else
+ # to itself, or perhaps because mv is so ancient that it does not
+ # support -f.
+ {
+ # Now remove or move aside any old file at destination location.
+ # We try this two ways since rm can't unlink itself on some
+ # systems and the destination file might be busy for other
+ # reasons. In this case, the final cleanup might fail but the new
+ # file should still install successfully.
+ {
+ test ! -f "$dst" ||
+ $doit $rmcmd -f "$dst" 2>/dev/null ||
+ { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+ { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+ } ||
+ { echo "$0: cannot unlink or rename $dst" >&2
+ (exit 1); exit 1
+ }
+ } &&
+
+ # Now rename the file to the real destination.
+ $doit $mvcmd "$dsttmp" "$dst"
+ }
+ fi || exit 1
+
+ trap '' 0
+ fi
+done
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
--- /dev/null
+# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*-
+#
+# Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc.
+# Written by Scott James Remnant, 2004.
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 4 lt~obsolete.m4
+
+# These exist entirely to fool aclocal when bootstrapping libtool.
+#
+# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN)
+# which have later been changed to m4_define as they aren't part of the
+# exported API, or moved to Autoconf or Automake where they belong.
+#
+# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN
+# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us
+# using a macro with the same name in our local m4/libtool.m4 it'll
+# pull the old libtool.m4 in (it doesn't see our shiny new m4_define
+# and doesn't know about Autoconf macros at all.)
+#
+# So we provide this file, which has a silly filename so it's always
+# included after everything else. This provides aclocal with the
+# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
+# because those macros already exist, or will be overwritten later.
+# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
+#
+# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
+# Yes, that means every name once taken will need to remain here until
+# we give up compatibility with versions before 1.7, at which point
+# we need to keep only those names which we still refer to.
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])])
+
+m4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])])
+m4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])])
+m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_AC_SHELL_INIT], [AC_DEFUN([_LT_AC_SHELL_INIT])])
+m4_ifndef([_LT_AC_SYS_LIBPATH_AIX], [AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])])
+m4_ifndef([_LT_PROG_LTMAIN], [AC_DEFUN([_LT_PROG_LTMAIN])])
+m4_ifndef([_LT_AC_TAGVAR], [AC_DEFUN([_LT_AC_TAGVAR])])
+m4_ifndef([AC_LTDL_ENABLE_INSTALL], [AC_DEFUN([AC_LTDL_ENABLE_INSTALL])])
+m4_ifndef([AC_LTDL_PREOPEN], [AC_DEFUN([AC_LTDL_PREOPEN])])
+m4_ifndef([_LT_AC_SYS_COMPILER], [AC_DEFUN([_LT_AC_SYS_COMPILER])])
+m4_ifndef([_LT_AC_LOCK], [AC_DEFUN([_LT_AC_LOCK])])
+m4_ifndef([AC_LIBTOOL_SYS_OLD_ARCHIVE], [AC_DEFUN([AC_LIBTOOL_SYS_OLD_ARCHIVE])])
+m4_ifndef([_LT_AC_TRY_DLOPEN_SELF], [AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF])])
+m4_ifndef([AC_LIBTOOL_PROG_CC_C_O], [AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O])])
+m4_ifndef([AC_LIBTOOL_SYS_HARD_LINK_LOCKS], [AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS])])
+m4_ifndef([AC_LIBTOOL_OBJDIR], [AC_DEFUN([AC_LIBTOOL_OBJDIR])])
+m4_ifndef([AC_LTDL_OBJDIR], [AC_DEFUN([AC_LTDL_OBJDIR])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH], [AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH])])
+m4_ifndef([AC_LIBTOOL_SYS_LIB_STRIP], [AC_DEFUN([AC_LIBTOOL_SYS_LIB_STRIP])])
+m4_ifndef([AC_PATH_MAGIC], [AC_DEFUN([AC_PATH_MAGIC])])
+m4_ifndef([AC_PROG_LD_GNU], [AC_DEFUN([AC_PROG_LD_GNU])])
+m4_ifndef([AC_PROG_LD_RELOAD_FLAG], [AC_DEFUN([AC_PROG_LD_RELOAD_FLAG])])
+m4_ifndef([AC_DEPLIBS_CHECK_METHOD], [AC_DEFUN([AC_DEPLIBS_CHECK_METHOD])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_NO_RTTI], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_NO_RTTI])])
+m4_ifndef([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE], [AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_PIC], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_PIC])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_SHLIBS], [AC_DEFUN([AC_LIBTOOL_PROG_LD_SHLIBS])])
+m4_ifndef([AC_LIBTOOL_POSTDEP_PREDEP], [AC_DEFUN([AC_LIBTOOL_POSTDEP_PREDEP])])
+m4_ifndef([LT_AC_PROG_EGREP], [AC_DEFUN([LT_AC_PROG_EGREP])])
+m4_ifndef([LT_AC_PROG_SED], [AC_DEFUN([LT_AC_PROG_SED])])
+m4_ifndef([_LT_CC_BASENAME], [AC_DEFUN([_LT_CC_BASENAME])])
+m4_ifndef([_LT_COMPILER_BOILERPLATE], [AC_DEFUN([_LT_COMPILER_BOILERPLATE])])
+m4_ifndef([_LT_LINKER_BOILERPLATE], [AC_DEFUN([_LT_LINKER_BOILERPLATE])])
+m4_ifndef([_AC_PROG_LIBTOOL], [AC_DEFUN([_AC_PROG_LIBTOOL])])
+m4_ifndef([AC_LIBTOOL_SETUP], [AC_DEFUN([AC_LIBTOOL_SETUP])])
+m4_ifndef([_LT_AC_CHECK_DLFCN], [AC_DEFUN([_LT_AC_CHECK_DLFCN])])
+m4_ifndef([AC_LIBTOOL_SYS_DYNAMIC_LINKER], [AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER])])
+m4_ifndef([_LT_AC_TAGCONFIG], [AC_DEFUN([_LT_AC_TAGCONFIG])])
+m4_ifndef([AC_DISABLE_FAST_INSTALL], [AC_DEFUN([AC_DISABLE_FAST_INSTALL])])
+m4_ifndef([_LT_AC_LANG_CXX], [AC_DEFUN([_LT_AC_LANG_CXX])])
+m4_ifndef([_LT_AC_LANG_F77], [AC_DEFUN([_LT_AC_LANG_F77])])
+m4_ifndef([_LT_AC_LANG_GCJ], [AC_DEFUN([_LT_AC_LANG_GCJ])])
+m4_ifndef([AC_LIBTOOL_RC], [AC_DEFUN([AC_LIBTOOL_RC])])
+m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])])
+m4_ifndef([_LT_AC_LANG_C_CONFIG], [AC_DEFUN([_LT_AC_LANG_C_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])])
+m4_ifndef([_LT_AC_LANG_CXX_CONFIG], [AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])])
+m4_ifndef([_LT_AC_LANG_F77_CONFIG], [AC_DEFUN([_LT_AC_LANG_F77_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])])
+m4_ifndef([_LT_AC_LANG_GCJ_CONFIG], [AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])])
+m4_ifndef([_LT_AC_LANG_RC_CONFIG], [AC_DEFUN([_LT_AC_LANG_RC_CONFIG])])
+m4_ifndef([AC_LIBTOOL_CONFIG], [AC_DEFUN([AC_LIBTOOL_CONFIG])])
+m4_ifndef([_LT_AC_FILE_LTDLL_C], [AC_DEFUN([_LT_AC_FILE_LTDLL_C])])
--- /dev/null
+#! /bin/sh
+# Common stub for a few missing GNU programs while installing.
+
+scriptversion=2009-04-28.21; # UTC
+
+# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
+# 2008, 2009 Free Software Foundation, Inc.
+# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+ echo 1>&2 "Try \`$0 --help' for more information"
+ exit 1
+fi
+
+run=:
+sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
+sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
+
+# In the cases where this matters, `missing' is being run in the
+# srcdir already.
+if test -f configure.ac; then
+ configure_ac=configure.ac
+else
+ configure_ac=configure.in
+fi
+
+msg="missing on your system"
+
+case $1 in
+--run)
+ # Try to run requested program, and just exit if it succeeds.
+ run=
+ shift
+ "$@" && exit 0
+ # Exit code 63 means version mismatch. This often happens
+ # when the user try to use an ancient version of a tool on
+ # a file that requires a minimum version. In this case we
+ # we should proceed has if the program had been absent, or
+ # if --run hadn't been passed.
+ if test $? = 63; then
+ run=:
+ msg="probably too old"
+ fi
+ ;;
+
+ -h|--h|--he|--hel|--help)
+ echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
+error status if there is no known handling for PROGRAM.
+
+Options:
+ -h, --help display this help and exit
+ -v, --version output version information and exit
+ --run try to run the given command, and emulate it if it fails
+
+Supported PROGRAM values:
+ aclocal touch file \`aclocal.m4'
+ autoconf touch file \`configure'
+ autoheader touch file \`config.h.in'
+ autom4te touch the output file, or create a stub one
+ automake touch all \`Makefile.in' files
+ bison create \`y.tab.[ch]', if possible, from existing .[ch]
+ flex create \`lex.yy.c', if possible, from existing .c
+ help2man touch the output file
+ lex create \`lex.yy.c', if possible, from existing .c
+ makeinfo touch the output file
+ tar try tar, gnutar, gtar, then tar without non-portable flags
+ yacc create \`y.tab.[ch]', if possible, from existing .[ch]
+
+Version suffixes to PROGRAM as well as the prefixes \`gnu-', \`gnu', and
+\`g' are ignored when checking the name.
+
+Send bug reports to <bug-automake@gnu.org>."
+ exit $?
+ ;;
+
+ -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+ echo "missing $scriptversion (GNU Automake)"
+ exit $?
+ ;;
+
+ -*)
+ echo 1>&2 "$0: Unknown \`$1' option"
+ echo 1>&2 "Try \`$0 --help' for more information"
+ exit 1
+ ;;
+
+esac
+
+# normalize program name to check for.
+program=`echo "$1" | sed '
+ s/^gnu-//; t
+ s/^gnu//; t
+ s/^g//; t'`
+
+# Now exit if we have it, but it failed. Also exit now if we
+# don't have it and --version was passed (most likely to detect
+# the program). This is about non-GNU programs, so use $1 not
+# $program.
+case $1 in
+ lex*|yacc*)
+ # Not GNU programs, they don't have --version.
+ ;;
+
+ tar*)
+ if test -n "$run"; then
+ echo 1>&2 "ERROR: \`tar' requires --run"
+ exit 1
+ elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
+ exit 1
+ fi
+ ;;
+
+ *)
+ if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+ # We have it, but it failed.
+ exit 1
+ elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
+ # Could not run --version or --help. This is probably someone
+ # running `$TOOL --version' or `$TOOL --help' to check whether
+ # $TOOL exists and not knowing $TOOL uses missing.
+ exit 1
+ fi
+ ;;
+esac
+
+# If it does not exist, or fails to run (possibly an outdated version),
+# try to emulate it.
+case $program in
+ aclocal*)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified \`acinclude.m4' or \`${configure_ac}'. You might want
+ to install the \`Automake' and \`Perl' packages. Grab them from
+ any GNU archive site."
+ touch aclocal.m4
+ ;;
+
+ autoconf*)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified \`${configure_ac}'. You might want to install the
+ \`Autoconf' and \`GNU m4' packages. Grab them from any GNU
+ archive site."
+ touch configure
+ ;;
+
+ autoheader*)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified \`acconfig.h' or \`${configure_ac}'. You might want
+ to install the \`Autoconf' and \`GNU m4' packages. Grab them
+ from any GNU archive site."
+ files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
+ test -z "$files" && files="config.h"
+ touch_files=
+ for f in $files; do
+ case $f in
+ *:*) touch_files="$touch_files "`echo "$f" |
+ sed -e 's/^[^:]*://' -e 's/:.*//'`;;
+ *) touch_files="$touch_files $f.in";;
+ esac
+ done
+ touch $touch_files
+ ;;
+
+ automake*)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
+ You might want to install the \`Automake' and \`Perl' packages.
+ Grab them from any GNU archive site."
+ find . -type f -name Makefile.am -print |
+ sed 's/\.am$/.in/' |
+ while read f; do touch "$f"; done
+ ;;
+
+ autom4te*)
+ echo 1>&2 "\
+WARNING: \`$1' is needed, but is $msg.
+ You might have modified some files without having the
+ proper tools for further handling them.
+ You can get \`$1' as part of \`Autoconf' from any GNU
+ archive site."
+
+ file=`echo "$*" | sed -n "$sed_output"`
+ test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
+ if test -f "$file"; then
+ touch $file
+ else
+ test -z "$file" || exec >$file
+ echo "#! /bin/sh"
+ echo "# Created by GNU Automake missing as a replacement of"
+ echo "# $ $@"
+ echo "exit 0"
+ chmod +x $file
+ exit 1
+ fi
+ ;;
+
+ bison*|yacc*)
+ echo 1>&2 "\
+WARNING: \`$1' $msg. You should only need it if
+ you modified a \`.y' file. You may need the \`Bison' package
+ in order for those modifications to take effect. You can get
+ \`Bison' from any GNU archive site."
+ rm -f y.tab.c y.tab.h
+ if test $# -ne 1; then
+ eval LASTARG="\${$#}"
+ case $LASTARG in
+ *.y)
+ SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
+ if test -f "$SRCFILE"; then
+ cp "$SRCFILE" y.tab.c
+ fi
+ SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
+ if test -f "$SRCFILE"; then
+ cp "$SRCFILE" y.tab.h
+ fi
+ ;;
+ esac
+ fi
+ if test ! -f y.tab.h; then
+ echo >y.tab.h
+ fi
+ if test ! -f y.tab.c; then
+ echo 'main() { return 0; }' >y.tab.c
+ fi
+ ;;
+
+ lex*|flex*)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified a \`.l' file. You may need the \`Flex' package
+ in order for those modifications to take effect. You can get
+ \`Flex' from any GNU archive site."
+ rm -f lex.yy.c
+ if test $# -ne 1; then
+ eval LASTARG="\${$#}"
+ case $LASTARG in
+ *.l)
+ SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
+ if test -f "$SRCFILE"; then
+ cp "$SRCFILE" lex.yy.c
+ fi
+ ;;
+ esac
+ fi
+ if test ! -f lex.yy.c; then
+ echo 'main() { return 0; }' >lex.yy.c
+ fi
+ ;;
+
+ help2man*)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified a dependency of a manual page. You may need the
+ \`Help2man' package in order for those modifications to take
+ effect. You can get \`Help2man' from any GNU archive site."
+
+ file=`echo "$*" | sed -n "$sed_output"`
+ test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
+ if test -f "$file"; then
+ touch $file
+ else
+ test -z "$file" || exec >$file
+ echo ".ab help2man is required to generate this page"
+ exit $?
+ fi
+ ;;
+
+ makeinfo*)
+ echo 1>&2 "\
+WARNING: \`$1' is $msg. You should only need it if
+ you modified a \`.texi' or \`.texinfo' file, or any other file
+ indirectly affecting the aspect of the manual. The spurious
+ call might also be the consequence of using a buggy \`make' (AIX,
+ DU, IRIX). You might want to install the \`Texinfo' package or
+ the \`GNU make' package. Grab either from any GNU archive site."
+ # The file to touch is that specified with -o ...
+ file=`echo "$*" | sed -n "$sed_output"`
+ test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
+ if test -z "$file"; then
+ # ... or it is the one specified with @setfilename ...
+ infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
+ file=`sed -n '
+ /^@setfilename/{
+ s/.* \([^ ]*\) *$/\1/
+ p
+ q
+ }' $infile`
+ # ... or it is derived from the source name (dir/f.texi becomes f.info)
+ test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
+ fi
+ # If the file does not exist, the user really needs makeinfo;
+ # let's fail without touching anything.
+ test -f $file || exit 1
+ touch $file
+ ;;
+
+ tar*)
+ shift
+
+ # We have already tried tar in the generic part.
+ # Look for gnutar/gtar before invocation to avoid ugly error
+ # messages.
+ if (gnutar --version > /dev/null 2>&1); then
+ gnutar "$@" && exit 0
+ fi
+ if (gtar --version > /dev/null 2>&1); then
+ gtar "$@" && exit 0
+ fi
+ firstarg="$1"
+ if shift; then
+ case $firstarg in
+ *o*)
+ firstarg=`echo "$firstarg" | sed s/o//`
+ tar "$firstarg" "$@" && exit 0
+ ;;
+ esac
+ case $firstarg in
+ *h*)
+ firstarg=`echo "$firstarg" | sed s/h//`
+ tar "$firstarg" "$@" && exit 0
+ ;;
+ esac
+ fi
+
+ echo 1>&2 "\
+WARNING: I can't seem to be able to run \`tar' with the given arguments.
+ You may want to install GNU tar or Free paxutils, or check the
+ command line arguments."
+ exit 1
+ ;;
+
+ *)
+ echo 1>&2 "\
+WARNING: \`$1' is needed, and is $msg.
+ You might have modified some files without having the
+ proper tools for further handling them. Check the \`README' file,
+ it often tells you about the needed prerequisites for installing
+ this package. You may also peek at any GNU archive site, in case
+ some other package would contain this missing \`$1' program."
+ exit 1
+ ;;
+esac
+
+exit 0
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
--- /dev/null
+===============================================================================
+2009-08-06 OpenCORE 2.05
+
+New Features
+- Helper function to retrieve extended messages from command responses.
+
+- Support for eAAC+ encode in the pvAuthor engine.
+
+- Add conversion operations to OSCL_String classes.
+
+- RTSPT support (3GPP streaming over TCP). To test, replace "rtsp" with "rtspt"
+in the control URL (in source URL or SDP file). It is assumed that the user has
+access to a server with TCP streaming capability.
+
+- PV Metadata Engine (ME). This engine is targeted at applications that want
+to retrieve metadata for any given clip in a generic manner. Typically, a lot
+of these applications would like to scan large batches of content. Since ME
+is mainly targeted at apps like mediascanner, where speed is the most important
+factor, thumbnail extraction is not supported. For applications that do want
+to extract thumbnails in a generic manner along with the metadata, PV's
+FrameAndMetadata Utility (FMU) is recommended instead.
+
+- 2way Lip-Sync unit test cases.
+
+
+Improvement
+- A new base node implementation is introduced for the purpose of
+ refactoring and consolidating common logic in the nodes. The changes
+ will improve maintainability and make it easier to create new nodes.
+ Further documentation will be released in the future providing guidelines
+ for authoring nodes.
+- The following existing nodes were refactored to utilize the base node
+ implementation mentioned above: AAC, AMR, and WAV parser nodes.
+- Replace CodecSpecifier with PVMFFormatType.
+- Move EventHandlerProcessing method to PVMFOMXBaseDecNode class.
+- Change method type from "protected" to "private" in OMX derived classes
+(videodec node and audiodec node).
+- Adding robustness to avcdecoder to verify PPS and SPS parameters.
+- Display status of every test case after it finishes in 2way unit test app.
+- Add support to H.245 version 10.
+- OMX node - Implement interleaved NAL sizes (to replace NAL start codes) in
+omx buffers carrying AVC frames.
+- AMR-WB contributions to enable building in "C":
+https://review.source.android.com/10014
+https://review.source.android.com/10015
+https://review.source.android.com/10016
+https://review.source.android.com/10017
+https://review.source.android.com/10018
+- AMR-NB contributions to enable building in "C":
+https://review.source.android.com/10297
+https://review.source.android.com/10301
+https://review.source.android.com/10302
+https://review.source.android.com/10303
+- Update OsclFileStats to track total time taken instead of only the
+maximum time per operation.
+- Rename OMX master core methods to avoid linking conflicts.
+- Pass key MOUT_VIDEO_SUBFORMAT_KEY to the video MIO of FMU.
+- Remove Direct Render Mode from mp4 composer library.
+- AMR-NB and AMR-WB inline assembly is being re-enabled after a bug
+in the QEMU assembly translation has been fixed.
+- Modification of MIOs to take all configuration parameters at once.
+- Move OMX input and output buffer ctrl structure away from data buffers.
+- Enable byte-stream (H264-RAW) format decoding in OMX dec node.
+- PVMFInfoTrackDisable information event should be report to java application.
+- Retrieve the PLATFORM version at run time for the Android UserAgent string.
+- OMX audio and video dec nodes need to be able to handle PortSettingsChanged
+event with argument OMX_ALL.
+- PVMFMediaClock latency handling improvement.
+- AAC decoder creates artifacts when decoding clip.
+- Modify MP4 composer node to do sample adds to mp4 composer lib in a separate
+thread.
+- Add support for VIDEO_ENCODER_H264 in authordriver.
+- Author major brand "3gp5" if 3gp clip has TIMED-TEXT track.
+- No interleaving of mp4 files for just one track.
+https://review.source.android.com/10510
+- Return non-zero code when we detect a memory leak during unit tests.
+- Add "3g2a", "3g2b" and "3g2c" as compatible branch in all content authored
+by PvAuthor SDK.
+- Add support for OMX_COLOR_FormatYCbYCr.
+- Remove unneeded libraries being linked against individual shared libraries.
+- Exclude empty directories and unncessary build files from OpenCORE.
+- In OMX base node, turn the InputBufCtrlStruct from a struct into a class
+- Updates to pvmf_return_codes.pdf, pvplayer_developers_guide.pdf,
+omx_decoder_test_app_guide.pdf, and omx_encoder_test_app_guide.pdf.
+
+Bugs Fixed
+- Repositioning takes a long time for YouTube videos after a few
+repositions.
+- Crash in CPVH223Multiplex::Stop().
+- PlayerEngine cannot finish a playback session after repeated pause
+and resume near EndOfStream.
+- Allow file path to be passed to the pvPlayer SDK on Android.
+- Add a new constructor for the AVCSampleEntry to be used when parsing the
+encv atom
+https://review.source.android.com/9683
+- MP3 DurationCalcAO logic needs to moved to a place during Prepare and not
+Init.
+- Change PV_GET_ROW definition in M4V decoder.
+- Player Engine unit test TC 55 and 56 has memory leaks
+- Crash in authordriver if InitializeForThread fails.
+- Crash in playerdriver if InitializeForThread fails.
+- Potential memory leak in OMX encoder node.
+- Memory leaks in AAC file parser node & lib
+- FindFirst returns wrong element type when find a directory in android
+- Intermittent timeouts on 2way unit tests
+- Incorrect DeBlocking logic
+- AVC Clip Specific Issue: (Play till EOS) OR (Reposition to near EOS) The
+video gets stuck at near EOS
+- iTunes genre is not parsed correctly
+- Youtube : AV sync is lost after a seek when playing youtube contents
+- Crash after recording one minute of Video when duration is specified
+- Tracknumber metadata key string should be consistent through out all nodes
+- Possible race condition in singleton lock in omx_init
+- CPV2WayDatapath::GetPortFormatType() selects least preferred type
+- AAC OMX decoder component needs to process whole audio config buffer
+- Modify MP3Parser to make seek to 0 a special case and do not use XING header
+for calculating file offset
+- AAC Decoder should not try decode any AAC+ clip whose final sampling freq
+is > 48 KHz. Should default to AAC in these cases.
+- Update OMX encoder node to calculate the correct output buffer size in case
+the encoder has multiple roles.
+- OMX Encoder MPEG4 unit test fix
+- Setting AMR_NB bitrate to GSM_AMR_4_75 will fail prepare.
+- AuthorEngine should return Success incase Stop is called in
+PVAE_STATE_INITIALIZED state.
+- OMX M4V encoding drops the first I-frame
+- VIDEO_INTERLEAVE_BUFFER_SIZE is too short for some buffers when encoding
+D1 resolutions
+- Occasional audio glitch in MP3 parser during repositioning
+- OMX tests for AMR give seg fault on android
+- pvPlayer sends incorrect HTTP Range header
+http://code.google.com/p/android/issues/detail?id=3031
+- PDL/PS - Fix the Mp4 Parser node to pass the correct timestamp to PE node
+in RequestResumeNotification during Underflow condition
+- H.245 TerminalCapabilitySet (TCS) and MasterSlaveDetermination (MSD)
+requests must be sent before any other H.245 messages.
+- Logic to set iKeepDroppingMsgsUntilMarkerBit to false in AMR RTSP streaming
+- 2way tests hanging when run in Android emulator
+- Sound Recorder: Incorrect Duration of clip sometimes observed when sdcard is
+full
+- Memory leak in PV2WayMIO
+- Playerengine needs to be updated to return success even if there are no keys
+for GetMetadataValue
+- Correct the Android RTSP UserAgent string
+- Author Engine : Don't access the queue element without checking its queue
+size
+- If SSRC is not provided in setup response, then pvplayer cleint doesn't send
+firewall packets to the server
+- GetMetadataValues returns invalid number of entries
+- Modify AUT to parse authored files and validate the files as much as possible
+- Eliminate media layer node in case of RTSP streaming
+- AAC timestamps provided to OMX component may be wrong
+- Clean up warnings and some negotiate parameter changes from omx dec & enc
+test apps
+- Fix valgrind issue reported with android simulator in omx base node
+- Add more supported rate control types in pvmp4h263encextension.h
+- Memory leak in player engine test case 807
+- Addressed compiler warnings in PVME
+- nBufferAlignment of OMX_PARAM_PORTDEFINITIONTYPE is initialized to negative
+value when playing clip on android using qcom decoders
+- MP3 parser crash
+- pvplayer_engine_test is detecting 'rtspt_test.sdp' as a url instead a local
+file
+- Count of command line arguments being read in PVME Test App is incorrect
+- Player engine test case 1307 fails when run with a mp4 file containing 3GPP timed text track
+- PVMFInfoDataReady event being sent to the engine after the unit test calls
+stop
+- PlayerEngine doesn't free reference to PVMFDataSourceNodeRegistryInitInterface
+- Combine the AMR if statement in pv_omxmastercore.cpp
+- Player Engine unit test case 154 fails on execution
+- Author Engine unit test cases 101-105 fail
+- Add new return code PVMFErrContentInvalidForProgressivePlayback for a
+NOT_PROGRESSIVE_STREAMABLE content
+- Add USE (AL2, AL3) to 2way test files
+- H223 2way test not being run
+- Avoid calling CCYUV422toYUV420::New() for each thumbnail
+- Author engine unit test case 101 fails
+- Ignore encoding flaw, which generates aspec_ratio of value 0 in file
+codecs_v2\video\m4v_h263\dec\src
+- Memory leaks in pvmf_mio_fileinput.cpp and performance improvement in mp4
+composer node
+- Do not cancel Init() immediately in case of 3gpp streaming
+- Transferring MP3 with invalid ID2 tags crashes mediaScanner
+
+
+===============================================================================
+2009-05-17 OpenCORE 2.04
+
+New Features
+- Create external download datastream An external download datastream is
+introduced to allow for an external entity to pass a datastream interface
+to the player SDK. The external entity is responsible for doing the actual
+download of the media data. Full support in Android is not complete until
+playerdriver changes and more unit testing is done.
+
+- Fixed cache option in Oscl_File
+Adding an option to configure the Oscl file cache to use one or more fixed
+caches in addition to the movable cache.
+
+- Modify author engine to contain a notion of "authoring clock"
+Author engine has the option to pass an "authoring clock" to media input
+components so that they can use this to sync audio and video timestamps.
+Author engine has been modified to own a PVMFMediaClock. Author engine
+provides a pointer to its to data source node (media input node typically)
+at the end of author engine Init cycle, using PVMF_AUTHORING_CLOCK_KEY.
+No media input component changes were done. All media input components
+used in author engine unit test currently operate from a file and have no
+need for such a clock, but some device media input components can make use
+of the clock if needed in the future, since author engine will pass the
+clock pointer all the time to data sources.
+
+- Shoutcast (of MP3) support
+Shoutcast support of MP3 and internet radio streaming is added.
+
+- Enable AAC PDL Support
+More robust support of PDL of AAC content, including underflow handling.
+
+- Add support for 3GPP2 speech (EVRC, QCELP etc) in MP4 FF library
+Support for the 3GPP2 speech codecs is added at the file format library
+level. No 3GPP2 speech codecs are added.
+
+- OpenMAX encoder and decoder unit test suite
+
+- Use external filehandle in Android
+
+- Introduce new macro to android makefiles to enable 2way
+
+
+Improvements
+- Add support for "all" metadata key in CPM plugins. This feature provides
+ a single key to request that all available metadata be returned.
+- Add support for OMX_ColorFormatCbYCrY
+- OMX video dec node now sets the codec parameters (width/height etc.) in the
+ output port of the omx component.
+- A loadable module for the OMA1 passthru CPM plugin now exists. It serves
+ as an example for creating a loadable CPM plugin.
+- Compressed testcases have been added in Authior Engine unit tests to
+ author 3gp file from AVC and M4V and AAC bitstreams
+- Added checks to verify that the PCM output of the mp3 frame will not exceed
+ the output buffer size, so the mp3 decoder / OMX component is nore robust.
+- Removed unnecessary "ComponentGetRolesOfComponent" methods from OMX
+ components.
+- Restored "/x-pvmf/ff-mux/mp4" MIME Type in Author engine.
+- Modified the Initial AVC buffers so that the image that appears initially
+ is black (not green/pink) if I-frame is missing.
+- Fixed the IFrameInterval setting in the OpenMAX video encoder node.
+- Added the ability to pass a peer PvmiCapabilityAndConfig interface to
+ the Media I/O (MIO) components using the Capability Exchange. The purpose
+ is to allow the MIO components to set and get parameters (i.e., drive the
+ process) rather than on relying on the media output node to do it.
+- Added checks to the OMX components to verify that the buffer size
+ (in allocate/use buffer) (nAllocLen) is adequate (i.e. >= than nBufferSize)
+- Updated OMX components so that standard component roles can be queried as
+ well as set.
+- AMR-NB common library modified to mark the proper symbol exports and moved
+ some functions to encoder and decoder libraries instead of common.
+- Updated h264 decoder to take advantage of the fact that there will be no
+ in-band SPS/PPS NALs for the mime Video dec node prevents in-band SPS/PPS
+ for the format PVMF_MIME_H264_VIDEO_MP4
+- Add macro for enabling build of pv test engine executables in Android
+- Remove 12-bit, 24-bit, and 32-bit routines from Android libraries
+- Modified OMX timestamps to be in in microseconds rather than milliseconds
+ as specified in the OMX spec 1.1.2.
+- Improvements and workarounds for non-compliant OMX components
+- Replace OPEN_FILE_ONCE_PER_TRACK macro with member variable
+aOpenFileOncePerTrack in mp4ffparser lib
+- 2way: send data fragment by fragment from parser side
+- Added a new function to convert PVMFStatus to human friendly strings
+- Implement logic to choose correct OMX component when decoding streaming
+H264
+- OMX dec nodes should report error and not even call config parser if
+config data is missing (but is required by the format)
+- Update playerdriver.cpp to send "disable-firewall-packets" KVP key based
+on system Android property
+
+
+Bugs Fixed
+- Moov atom is not being written into .3gp file if Author driver does not
+ close file handle.
+- omx mp4 component in no-marker-bit mode crashes when playing a certain clip
+- Error handling incase of input other then 8K AMR
+- Add PVReleaseInterface method to OMX shared library interfaces
+ (components + main)
+- pull sdcard while recording causes media server to crash
+- Changes to buffering status notifications while streaming
+- OMX nodes should not send repositioning request to OMX component until
+ config data has been processed by OMX components
+- Crash in the author SDK as part of engine Reset
+- If SSRC is not provided in setup response, then pvplayer client doesn't
+ send firewall packets to the server
+- PVAuthorEngineNodeUtility::NodeCommandCompleted does not check whether
+ iCmdQueue is empty
+- AMR Local Playback -> FF to EOS when repeat song is on will cause a force
+ crash
+- some source nodes will put same timestamp for DataTS in old stream id
+ and DiscardTS
+- Change pv omx encoder node to default iOMXComponentNeedsNALStartCodes to
+ false and do sanity check
+- When reconfig happen,SinkNode should send reconfig notification with
+ FormatSpecificInfo to MIO
+- Race condition - If port settings event and node stop command arrive
+ simultaneously - omx component may fail port flush command
+- Mp3FFParserNode: Memory leak in Duration Calculator
+- Playback clock starts even before PlayerEngine Start( ) is issued
+- Clip plays beyond EOS. Fixed setting of the actual normal play time (NPT)
+ when repositioning.
+- Modified OSCL and player driver handling of external file handles in the
+ player.
+- MP3 PS - Repositioning is not working properly
+- MP3 Parser needs to validate consecutive mp3 headers before parsing starts
+- Crash in MIO component due to setPeer(NULL) is not called
+- Improvements and robustness in thumbnail generation from normal and
+ corrupted clips
+- Improvements in stability of Author Engine Unit tests when using OMX
+ encoder node
+- Modify OSCL Mempool to assert when a buffer is deallocated back to
+ mempool twice in a row
+- Fix a possible race condition in omx proxy threads.
+- H263 decoder (OMX version) needs to remove the DEFAULT width-height
+ initialization
+- Oscl file cache assert when reading binary file in text mode
+- AAC and MP3 decoders have ARMv4 incorrect defines on normalization routines.
+ (see https://review.source.android.com/Gerrit#change,9668)
+- AMR component roles do not distinguish between AMR_NB and AMR_WB
+- OSCL shared library avoid dlopen() leaking in case of failure(dlsym() fails)
+- Mp3 Clip hangs for some time when repositioned near to the end
+- PV_atof will return a value that is larger than it should be if the input
+string has a CR at the end
+- Sequence number rollover in RTP info param during prolonged RTSP streaming
+
+===============================================================================
+2009-03-31 OpenCORE 2.03
+
+Improvements
+- Enable OpenCORE on master - part 2
+
+
+===============================================================================
+2009-03-10 OpenCORE 2.02
+
+********
+ There is minor version number nomenclature change where the
+ minor version is now two digits. So the previous releases
+ in the new nomenclature are 2.00 (2.0) and 2.01 (2.1). The
+ new release is 2.02, which is a minor version increment beyond
+ the previous release.
+********
+
+New Features
+- AMR-WB support added to the OMX encoder node so that it can utilize
+ an OMX AMR-WB encoder component if it is part of the OMX core.
+- Buffer allocator mechanism allowing the Media I/O components to
+ supply buffers to the OMX decoders. This method is especially useful
+ as an alternative way to allocate video buffers. Details can be
+ found in the new document "Guide to Supplying Decoder Buffers from
+ the MIO Component" in the file mio_decoder_buffer_allocation_guide.pdf
+ in the top-level doc directory.
+
+Improvements
+- Resolution of Valgrind and static analysis warnings in player and author
+- Improvements in support for .mov files in MP4 FF Parser(relaxed some checks).
+- Modified OMX encoder node to allow setting the AMR bitrate
+ based on an extension interface value.
+- Fix inconsistencies in OSCL find method related to inclusion of the
+ directory name with the filename.
+- Improvement in PVMFInfoErrorHandlingComplete in the player datapath
+- Refactor of the Protocol Engine node to support a plugin architecture.
+ This improves extensibility of the module for new features in the future.
+- Introduce QueryInterfaceSync in PVMFNodeInterface and "all" metadata key
+- AMR NB and WB have conflicting meaning for frame_type and mode elements
+- Change the default settings related to caching for Oscl_File when
+ using PVFile within the fileformat parsers.
+- Replace test.mp4 with interop clip
+- Update of tests for support for progressive download of AMR
+- OMX Khronos header files (Omx_Core.h, Omx_Component.h) capitalization
+ changed to match that from the Khronos (previously they were all lowercase).
+
+
+Bugs Fixed
+- Memory leak when running GCF TC212 (2way-related)
+- MediaClockConverter divided by zero caused by timescale 0
+- MP4 composer node destructor memory corruption fixed.
+- Fix for intermittent crash in player engine TC 105
+- OMX dec node did not reset all the internal state during
+ Reset processing.
+
+
+===============================================================================
+2009-02-26 OpenCORE 2.1 (2.01)
+
+New Features
+* OpenMAX Codec-related:
+ - Introduced the OMXConfigParser API to help in determining
+ which OpenMAX components can support the input bitstream.
+ It is used to narrow the list of candidate OpenMAX components
+ to be used for playback. See the OpenMAX Core Integration Guide
+ document in the doc directory for more information.
+ - Added OMX AAC encoder support in the OMX encoder.
+ - Modified to use separate component roles for AMR-NB and AMR-WB as
+ described in the OpenMAX IL spec version 1.1.2.
+ - Added support for a new buffer format for H.264/AVC decode and
+ encode to allow passing multiple NALs in a single buffer.
+ The format uses OMX_OTHER_EXTRADATA structure defined in
+ section 4.2.33 of the OpenMAX IL spec version 1.1.2 to pass
+ NAL lengths. See the OpenMAX Core Integration Guide document
+ in the doc directory for more information.
+* Author-related:
+ - Added support for authoring files with AAC audio.
+ - Added support for authoring AMR-WB audio to MP4/3GP files and
+ IETF storage format.
+ - Added support for writing to an open file descriptor as an option
+ instead of simply providing a filename. The file descriptor
+ option is useful for cases where another process needs to open
+ the file because of permissions.
+* Added large file support in OSCL (i.e., 64-bit file size/offset
+ support) to handle files greater than 2 GiB on filesystems that
+ support it.
+* Added rotation support in the 32-bit color-conversion class.
+
+Improvements
+* Removed dynamically loaded modules from the prelink map to avoid
+ clutter and to make both the prelink map and loadable modules
+ easier to manage. There may be an issue if a single instance of
+ a process tries to load libraries not in the prelink map more than
+ 256 times
+ (See http://code.google.com/p/android/issues/detail?id=2042).
+* Update to the MP3 Decoder to fix security issue (oCERT_2009-002,
+ CVE-2009-0475)
+* Renamed the OSCL config directory linux_nj to android to match the
+ platform name. Replaced all references of nj with android in the
+ codebase.
+* General security improvements found from static analysis in the
+ following areas:
+ - Buffer and type overruns and underruns
+ - Null pointer references
+* Refactored the jitter buffer node into a more modular architecture
+ for better support of different streaming use-cases and protocols.
+* Fixed an issue in the MP3 decoder when decoding for very of long
+ durations (over 2 GiB of data).
+* General improvements found during 3GPP packet-switched streaming
+ interoperability testing.
+* General improvements and resolution of issues found from module
+ level and engine (player, author, 2-way) level unit testing.
+
+New APIs / Behaviors
+* Added support in the player engine to cancel a single pending
+ command using the CancelCommand API. See the player engine API
+ document for details.
+* Renumbered the author test cases to avoid issues with
+ preprocessor conditionals changing the test numbers based on
+ settings. Now the test numbers shouldn't change.
+* In the case of 3rd party OMX components that support multiple roles,
+ returns an error if the component cannot set the role parameter
+* OMX components need to explicitly set nPortIndex parameter for
+ all appropriate parameters
+* Added fix for buffering percentage notification in streaming
+ scenario (see https://review.source.android.com/Gerrit#change,8699)
+* Updated omx shared library build configuration to separate component
+ registration from component build
+* Added methods in baselibs to serialize and deserialize the UTF-16,
+ UTF-16LE, UTF-16BE strings
+* Removed the iUseCPMPluginRegistry flag from the source data that was
+ previously used to enable the content policy manager.
+ Since the CPM pluginsare dynamically loaded, the flag is not
+ needed and was removed. See the playerdriver.cpp for details
+ of the change.
+
+===============================================================================
+2009-01-26 OpenCORE 2.0 (2.00)
+
+New Features
+- Consolidation of the clock logic into a common clock object
+ (PVMFMediaClock). More details will be provided in a
+ Tech note at a later time.
+- Refactor MP4 Composer library
+- omx component refactoring (Introducing base omx component class)
+- OMX Encoder Support
+- Check URIs for illegal characters and run escaping algorithm if any
+ are found.
+- Support for 3GPP AssetInfo Metadata in Author SDK
+- MP3 Dynamic TOC Construction
+- Modify MPEG4/H.263 node/library to support arbitrary Decoder
+ Configuration Information (DCI)
+- backward playback support for MP4
+- Refactoring Colorconversion from mpeg4 encoder and adding support
+ for YUV420SemiPlanar
+- Refactor streaming manager node into feature specifc plugins
+- Thread Safe Player Engine APIs and Thread Safe queue
+- Adding capability to turn off AC prediction and change
+ IntraDCVlcThreshold for MPEG4 encoder library
+- Dynamically populate recognizer registry
+- add 2way support for OpenCORE
+- Combine OMX audio dec node and Video Dec node
+- OMX MasterCore
+- Apply new RGB to YUV color conversion libraries to OMX encoder
+ components
+- Use loadable modules in CPM
+- Adding support for YUV420Semiplanar to avc encoder, m4v encoder and
+ author
+- introduce dynamic loading of individual omx components
+
+Improvements
+- Removal of all compiler warnings reported by Android compiler
+ Exception: unit test app code
+- Module-level unit test fixes
+- Various Valgrind errors and fixes
+- Various Codesonar warnings and fixes
+- various security audit and fixes
+- various memory leak fixes
+- various crash, hang fixes for specific test content or test cases
+- Re-work Oscl Scheduler semaphore & lock
+- Author Engine Error Handling Robustness
+- Player Engine Error Handling Robustness
+- Add capability of assembling partial frames and inserting NAL start
+ codes to OMX node
+- The media I/O component configuration process needs to be improved.
+- Fundamental change in behavior of repositioning during 3GPP
+ streaming
+- Improvements to the PV FrameMetadataUtility [FMU]
+- mp3 parser - duration calculation by walking file in background
+- IOT merges from 2-way team
+- Longevity issues with live streaming
+- Local Playback MP3 file does not display attached art work
+- Issues with Oscl Leave, Panic, and Assert
+- Modify allocators to not leave in case of an alloc failure, but
+ instead have them return OsclErrNoMemory
+- Conversion of strcmp and strstr usage to strncmp for non null
+ terminated Strings
+- Change Oscl memory auditing from TLS-based to Singleton-based
+- Buffer status report in a periodical manner to improve the app
+ awareness about how engine is running in low bandwidth for PDL/PS
+- AVC Encoder Improved Rate Control
+- State Transition: Remove implicit ThreadLogoff() from Nodes
+- Include aac recognizer for Android
+- Audit MP4 parser against new iTunes spec
+- Replace PVMFSMSharedBufferAllocWithReSize allocator with
+ OsclMemPoolResizableAllocator
+- Player Engine registry re-work
+
+New KVPs / APIs / API behaviors
+- Change Download Manager Stop Command to Stop Download
+- Add a KVP to configure jitter buffer inactivity run time from the
+ app
+- OSCL Critical Error Handling
+- Adding kvp in SM node to set rtsp_timeout timer in rtsp engine node
+- Get rid of "getTrackOTIType" API in parser lib and switch mp4 parser
+ node to use "getTrackMIMEType".
+- Adding capability to turn off AC prediction and change
+ IntraDCVlcThreshold for MPEG4 encoder library
+- Deprecate PVMFCPMPluginLocalSyncAccessInterface
+- Introduce new API in Engine to Release MetaData Values
+- Use of PVMF format types in player registries
+- Introduce new kvp key to set jitter buffer size
+- Add a new meta data key to Mp3ParserNode to support channel mode
+ retrieval
+- Support for taking in video bitrate and other params from a config
+ file, for uncompressed AVI test cases.
+- Deprecate TLS-based memory audit
+- Use KVP "nodedataqueuing_timeout" instead of compile time tuneable
+ "SYNC_POINT_DIFF_THRESHOLD"
+- Please apply "mode=" for "x-pvmf/net/user-agent;valtype=char*" key.
+- Change libpv*.so to libopencore_*.so
+- Singleton and lock/unlock mechanism needed for OMX master core
+ globals
+- In case of 3rd party OMX components that support multiple roles -
+ input dec format and output enc format needs to be specified
+- OMX Core plugin code (for 3rd party omx cores integration)
+
+Known Issues
+- Had to temporarily remove the doc directory because of conflicts
+ with Gerrit and PDF files. These will be uploaded again now that
+ Gerrit is updated.
+- Additional documentation will be released as soon as possible.
+- The OpenMAX encoder node is configuring the OpenMAX component with
+ the wrong format for AMR. It is using
+ OMX_AUDIO_AMRFrameFormatRTPPayload when it should be
+ OMX_AUDIO_AMRFrameFormatFSF.
+- The OpenMAX encoder node is not handling Reset correctly in all
+ cases.
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+Portions of the PacketVideo supplied code contain contributions which may be
+covered by the following copyright statements:
+
+
+/* ------------------------------------------------------------------- *
+ * MPEG-4 Simple Profile Video Decoder
+ * ------------------------------------------------------------------- *
+ *
+ * This software module was originally developed and/or edited by
+ *
+ * Paulo Nunes (IST / ACTS-MoMuSyS)
+ * Robert Danielsen (Telenor / ACTS-MoMuSyS)
+ * Luis Ducla-Soares (IST / ACTS-MoMuSys).
+ * Cor Quist (KPN / ACTS-MoMuSys).
+ * Minhua Zhou (HHI / ACTS-MoMuSys).
+ *
+ * in the course of development of the MPEG-4 Video (ISO/IEC 14496-2) standard.
+ * This software module is an implementation of a part of one or more MPEG-4
+ * Video (ISO/IEC 14496-2) tools as specified by the MPEG-4 Video (ISO/IEC
+ * 14496-2) standard.
+ *
+ * ISO/IEC gives users of the MPEG-4 Video (ISO/IEC 14496-2) standard free
+ * license to this software module or modifications thereof for use in hardware
+ * or software products claiming conformance to the MPEG-4 Video (ISO/IEC
+ * 14496-2) standard.
+ *
+ * Those intending to use this software module in hardware or software products
+ * are advised that its use may infringe existing patents. The original
+ * developer of this software module and his/her company, the subsequent
+ * editors and their companies, and ISO/IEC have no liability for use of this
+ * software module or modifications thereof in an implementation. Copyright is
+ * not released for non MPEG-4 Video (ISO/IEC 14496-2) Standard conforming
+ * products.
+ *
+ * ACTS-MoMuSys partners retain full right to use the code for his/her own
+ * purpose, assign or donate the code to a third party and to inhibit third
+ * parties from using the code for non MPEG-4 Video (ISO/IEC 14496-2) Standard
+ * conforming products. This copyright notice must be included in all copies or
+ * derivative works.
+ *
+ * Copyright (c) 1996, 1997
+ *
+ *****************************************************************************/
+
+
+
+/****************************************************************************
+
+SC 29 Software Copyright Licencing Disclaimer:
+
+This software module was originally developed by
+ Coding Technologies
+
+and edited by
+ -
+
+in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3
+standards for reference purposes and its performance may not have been
+optimized. This software module is an implementation of one or more tools as
+specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards.
+ISO/IEC gives users free license to this software module or modifications
+thereof for use in products claiming conformance to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International
+Standards. ISO/IEC gives users the same free license to this software module or
+modifications thereof for research purposes and further ISO/IEC standardisation.
+Those intending to use this software module in products are advised that its
+use may infringe existing patents. ISO/IEC have no liability for use of this
+software module or modifications thereof. Copyright is not released for
+products that do not conform to audiovisual and image-coding related ITU
+Recommendations and/or ISO/IEC International Standards.
+The original developer retains full right to modify and use the code for its
+own purpose, assign or donate the code to a third party and to inhibit third
+parties from using the code for products that do not conform to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International Standards.
+This copyright notice must be included in all copies or derivative works.
+Copyright (c) ISO/IEC 2003.
+
+*******************************************************************************/
+
+
+/**************************************************************************
+
+This software module was originally developed by
+
+Mikko Suonio (Nokia)
+
+in the course of development of the MPEG-2 NBC/MPEG-4 Audio standard
+ISO/IEC 13818-7, 14496-1,2 and 3. This software module is an
+implementation of a part of one or more MPEG-2 NBC/MPEG-4 Audio tools
+as specified by the MPEG-2 NBC/MPEG-4 Audio standard. ISO/IEC gives
+users of the MPEG-2 NBC/MPEG-4 Audio standards free license to this
+software module or modifications thereof for use in hardware or
+software products claiming conformance to the MPEG-2 NBC/ MPEG-4 Audio
+standards. Those intending to use this software module in hardware or
+software products are advised that this use may infringe existing
+patents. The original developer of this software module and his/her
+company, the subsequent editors and their companies, and ISO/IEC have
+no liability for use of this software module or modifications thereof
+in an implementation. Copyright is not released for non MPEG-2
+NBC/MPEG-4 Audio conforming products. The original developer retains
+full right to use the code for his/her own purpose, assign or donate
+the code to a third party and to inhibit third party from using the
+code for non MPEG-2 NBC/MPEG-4 Audio conforming products. This
+copyright notice must be included in all copies or derivative works.
+
+Copyright (c) 1997.
+
+***************************************************************************/
+
+
+/**************************************************************************
+
+This software module was originally developed by
+Nokia in the course of development of the MPEG-2 AAC/MPEG-4
+Audio standard ISO/IEC13818-7, 14496-1, 2 and 3.
+This software module is an implementation of a part
+of one or more MPEG-2 AAC/MPEG-4 Audio tools as specified by the
+MPEG-2 aac/MPEG-4 Audio standard. ISO/IEC gives users of the
+MPEG-2aac/MPEG-4 Audio standards free license to this software module
+or modifications thereof for use in hardware or software products
+claiming conformance to the MPEG-2 aac/MPEG-4 Audio standards. Those
+intending to use this software module in hardware or software products
+are advised that this use may infringe existing patents. The original
+developer of this software module, the subsequent
+editors and their companies, and ISO/IEC have no liability for use of
+this software module or modifications thereof in an
+implementation. Copyright is not released for non MPEG-2 aac/MPEG-4
+Audio conforming products. The original developer retains full right to
+use the code for the developer's own purpose, assign or donate the code to a
+third party and to inhibit third party from using the code for non
+MPEG-2 aac/MPEG-4 Audio conforming products. This copyright notice
+must be included in all copies or derivative works.
+Copyright (c)1997.
+
+***************************************************************************/
+
+
+------------------------------------------------------------------------------
+
+MPEG-2 NBC Audio Decoder
+ "This software module was originally developed by AT&T, Dolby
+ Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+ of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+ 3. This software module is an implementation of a part of one or more
+ MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+ Audio standard. ISO/IEC gives users of the MPEG-2 NBC/MPEG-4 Audio
+ standards free license to this software module or modifications thereof
+ for use in hardware or software products claiming conformance to the
+ MPEG-2 NBC/MPEG-4 Audio standards. Those intending to use this software
+ module in hardware or software products are advised that this use may
+ infringe existing patents. The original developer of this software
+ module and his/her company, the subsequent editors and their companies,
+ and ISO/IEC have no liability for use of this software module or
+ modifications thereof in an implementation. Copyright is not released
+ for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+ developer retains full right to use the code for his/her own purpose,
+ assign or donate the code to a third party and to inhibit third party
+ from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+ This copyright notice must be included in all copies or derivative
+ works."
+ Copyright(c)1996.
+
+------------------------------------------------------------------------------
+
+
+/*
+ * snprintf.c - a portable implementation of snprintf
+ *
+ * AUTHOR
+ * Mark Martinec <mark.martinec@ijs.si>, April 1999.
+ *
+ * Copyright 1999, Mark Martinec. All rights reserved.
+ *
+ * TERMS AND CONDITIONS
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the "Frontier Artistic License" which comes
+ * with this Kit.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the Frontier Artistic License for more details.
+ *
+ *
+ */
+
+The "Frontier Artistic License" may be found at
+ http://www.spinwardstars.com/frontier/fal.html
+
+
+/*---------------------------------------------------------------------------*/
+
+/*
+ * Copyright (c) 2005 The Khronos Group Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject
+ * to the following conditions:
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+/*---------------------------------------------------------------------------*/
+
+/**@@@+++@@@@******************************************************************
+**
+** Microsoft Windows Media
+** Copyright (C) Microsoft Corporation. All rights reserved.
+**
+***@@@---@@@@******************************************************************
+*/
+
+
+-------------------------------------------------------------------------------
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+-------------------------------------------------------------------------------
+
+
+-------------------------------------------------------------------------------
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+-------------------------------------------------------------------------------
+
--- /dev/null
+ Welcome to OpenCORE
+
+OpenCORE is the multimedia framework of Android
+originally contributed by PacketVideo. It provides
+an extensible framework for multimedia rendering and
+authoring and video telephony (3G-324M).
+
+The following is a brief overview of the directory
+structure to make it easier to understand the organization.
+Below is a list of the top-level directories along with a brief
+note about the contents.
+
+__
+ |-- android [Contains the components the interface OpenCORE with
+ | other parts of Android]
+ |-- baselibs [Contains basic libraries for data containers, MIME string
+ | handling, messaging across thread boundaries, etc]
+ |-- build_config [Contains top-level build files used to build the libraries
+ | outside of Android]
+ |-- codecs_v2 [Contains the implementations of PV's audio and video
+ | codecs as well as the OpenMax IL interface layer]
+ |-- doc [Contains the documentation required to interface with
+ | OpenCORE]
+ |-- engines [Contains the implementation of the player and author
+ | engines as well as a utility for metadata.]
+ |-- extern_libs_v2 [Contains 3rd-party libraries used by OpenCORE.
+ | Currently this directory contains header files
+ | defining the Khronos OpenMax IL interface]
+ |-- extern_tools_v2 [Contains 3rd-party tools used to build OpenCORE
+ | indpendently of the Android build system]
+ |-- fileformats [Contains the libraries for parsing a variety of
+ | fileformats including mp4/3gp,mp3,wav,aac.]
+ |-- modules [Contains build files for aggregating low-level libraries]
+ |-- nodes [Contains the OpenCORE framework "nodes", which is
+ | the abstraction used to implement independent multimedia
+ | processing units that can be connected in a flow graph]
+ |-- oscl [This is the Operating System Compatibility Layer which
+ | provides the mapping OS APIs as well as some basic
+ | data structures and utilities.]
+ |-- protocols [Contains parsers and composers for a variety of network
+ | protocols such as HTTP, RTP/RTCP, RTSP, and SDP]
+ |-- pvmi [Contains fundamental definitions that make up OpenCORE.
+ | The directory name is an abbreviation of PacketVideo
+ | Multimedia Infrastructure]
+ |-- tools_v2 [Contains tools used to build the libraries outside of Android]
+
+Within each library the following directory structure, with a few exceptions,
+to organize the files:
+
+__
+ |-- build
+ |-- make <- makefile to build outside of Android is here
+ |-- doc <- directory for any documentation specific to this lib
+ |-- include <- header files that are part of the external interface go here
+ |-- src <- source and internal header files of the library
+ |-- test <- test code (follows a similar structure.
+ |-- build
+ |-- make
+ |-- include
+ |-- src
+
--- /dev/null
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ src/add.cpp \
+ src/az_lsp.cpp \
+ src/bitno_tab.cpp \
+ src/bitreorder_tab.cpp \
+ src/c2_9pf_tab.cpp \
+ src/div_s.cpp \
+ src/gains_tbl.cpp \
+ src/gc_pred.cpp \
+ src/get_const_tbls.cpp \
+ src/gmed_n.cpp \
+ src/grid_tbl.cpp \
+ src/gray_tbl.cpp \
+ src/int_lpc.cpp \
+ src/inv_sqrt.cpp \
+ src/inv_sqrt_tbl.cpp \
+ src/l_shr_r.cpp \
+ src/log2.cpp \
+ src/log2_norm.cpp \
+ src/log2_tbl.cpp \
+ src/lsfwt.cpp \
+ src/lsp.cpp \
+ src/lsp_az.cpp \
+ src/lsp_lsf.cpp \
+ src/lsp_lsf_tbl.cpp \
+ src/lsp_tab.cpp \
+ src/mult_r.cpp \
+ src/norm_l.cpp \
+ src/norm_s.cpp \
+ src/overflow_tbl.cpp \
+ src/ph_disp_tab.cpp \
+ src/pow2.cpp \
+ src/pow2_tbl.cpp \
+ src/pred_lt.cpp \
+ src/q_plsf.cpp \
+ src/q_plsf_3.cpp \
+ src/q_plsf_3_tbl.cpp \
+ src/q_plsf_5.cpp \
+ src/q_plsf_5_tbl.cpp \
+ src/qua_gain_tbl.cpp \
+ src/reorder.cpp \
+ src/residu.cpp \
+ src/round.cpp \
+ src/shr.cpp \
+ src/shr_r.cpp \
+ src/sqrt_l.cpp \
+ src/sqrt_l_tbl.cpp \
+ src/sub.cpp \
+ src/syn_filt.cpp \
+ src/weight_a.cpp \
+ src/window_tab.cpp
+
+
+LOCAL_MODULE := libpv_amr_nb_common_lib
+
+LOCAL_CFLAGS := $(PV_CFLAGS)
+
+LOCAL_ARM_MODE := arm
+
+LOCAL_STATIC_LIBRARIES :=
+
+LOCAL_SHARED_LIBRARIES :=
+
+LOCAL_C_INCLUDES := \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/amr_nb/common/src \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/amr_nb/common/include \
+ $(PV_INCLUDES)
+
+LOCAL_COPY_HEADERS_TO := $(PV_COPY_HEADERS_TO)
+
+LOCAL_COPY_HEADERS := \
+
+
+include $(BUILD_STATIC_LIBRARY)
--- /dev/null
+# Get the current local path as the first operation
+LOCAL_PATH := $(call get_makefile_dir)
+
+# Clear out the variables used in the local makefiles
+include $(MK)/clear.mk
+
+TARGET := pv_amr_nb_common_lib
+
+
+OPTIMIZE_FOR_PERFORMANCE_OVER_SIZE := true
+
+SRCDIR := ../../src
+INCSRCDIR := ../../include
+
+SRCS := add.cpp \
+ az_lsp.cpp \
+ bitno_tab.cpp \
+ bitreorder_tab.cpp \
+ c2_9pf_tab.cpp \
+ div_s.cpp \
+ gains_tbl.cpp \
+ gc_pred.cpp \
+ get_const_tbls.cpp \
+ gmed_n.cpp \
+ grid_tbl.cpp \
+ gray_tbl.cpp \
+ int_lpc.cpp \
+ inv_sqrt.cpp \
+ inv_sqrt_tbl.cpp \
+ l_shr_r.cpp \
+ log2.cpp \
+ log2_norm.cpp \
+ log2_tbl.cpp \
+ lsfwt.cpp \
+ lsp.cpp \
+ lsp_az.cpp \
+ lsp_lsf.cpp \
+ lsp_lsf_tbl.cpp \
+ lsp_tab.cpp \
+ mult_r.cpp \
+ norm_l.cpp \
+ norm_s.cpp \
+ overflow_tbl.cpp \
+ ph_disp_tab.cpp \
+ pow2.cpp \
+ pow2_tbl.cpp \
+ pred_lt.cpp \
+ q_plsf.cpp \
+ q_plsf_3.cpp \
+ q_plsf_3_tbl.cpp \
+ q_plsf_5.cpp \
+ q_plsf_5_tbl.cpp \
+ qua_gain_tbl.cpp \
+ reorder.cpp \
+ residu.cpp \
+ round.cpp \
+ shr.cpp \
+ shr_r.cpp \
+ sqrt_l.cpp \
+ sqrt_l_tbl.cpp \
+ sub.cpp \
+ syn_filt.cpp \
+ weight_a.cpp \
+ window_tab.cpp
+
+include $(MK)/library.mk
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: abs_s.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the abs_s function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef ABS_S_H
+#define ABS_S_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 abs_s(Word16 var1);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ABS_S_H */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: add.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the add function.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef ADD_H
+#define ADD_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF Word16 add_16(Word16 var1, Word16 var2, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ADD_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: az_lsp.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the function Az_lsp()
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef AZ_LSP_H
+#define AZ_LSP_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define grid_points 60
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 grid[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void Az_lsp(
+ Word16 a[], /* (i) : predictor coefficients (MP1) */
+ Word16 lsp[], /* (o) : line spectral pairs (M) */
+ Word16 old_lsp[], /* (i) : old lsp[] (in case not found 10 roots) (M) */
+ Flag *pOverflow /* (i/o): overflow flag */
+ );
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AZ_LSP_H */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: basic_op.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file includes all the basicop2.c functions' header files.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef BASIC_OP_H
+#define BASIC_OP_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+#if defined(PV_ARM_V5)
+#include "basic_op_arm_v5.h"
+
+#elif defined(PV_ARM_GCC_V5)
+#include "basic_op_arm_gcc_v5.h"
+
+#else
+#include "basic_op_c_equivalent.h"
+
+#endif
+
+
+
+#include "add.h"
+#include "div_s.h"
+#include "l_shr_r.h"
+#include "mult_r.h"
+#include "norm_l.h"
+#include "norm_s.h"
+#include "round.h"
+#include "shr_r.h"
+#include "sub.h"
+#include "shr.h"
+#include "l_negate.h"
+#include "l_extract.h"
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: mac_32
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var3 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+ L_var1_hi = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+ L_var1_lo = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+ L_var2_hi = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+ L_var2_lo = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit mac operation resulted in overflow
+
+ Returns:
+ L_var3 = 32-bit result of L_var3 + (L_var1 * L_var2)(Word32)
+
+ */
+ static inline Word32 Mac_32(Word32 L_var3,
+ Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 L_var2_hi,
+ Word16 L_var2_lo,
+ Flag *pOverflow)
+ {
+ Word16 product;
+
+ L_var3 = L_mac(L_var3, L_var1_hi, L_var2_hi, pOverflow);
+
+ product = mult(L_var1_hi, L_var2_lo, pOverflow);
+ L_var3 = L_mac(L_var3, product, 1, pOverflow);
+
+ product = mult(L_var1_lo, L_var2_hi, pOverflow);
+ L_var3 = L_mac(L_var3, product, 1, pOverflow);
+
+ return (L_var3);
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: mac_32_16
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var3 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+ L_var1_hi = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+ L_var1_lo = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+ var2= 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit mac operation resulted in overflow
+
+ Returns:
+ L_var3 = 32-bit result of L_var3 + (L_var1 * var2)(Word32)
+ */
+
+ static inline Word32 Mac_32_16(Word32 L_var3,
+ Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 var2,
+ Flag *pOverflow)
+ {
+ Word16 product;
+
+ L_var3 = L_mac(L_var3, L_var1_hi, var2, pOverflow);
+
+ product = mult(L_var1_lo, var2, pOverflow);
+ L_var3 = L_mac(L_var3, product, 1, pOverflow);
+
+ return (L_var3);
+ }
+
+
+ /*----------------------------------------------------------------------------
+ Function Name : negate
+
+ Negate var1 with saturation, saturate in the case where input is -32768:
+ negate(var1) = sub(0,var1).
+
+ Inputs :
+ var1
+ 16 bit short signed integer (Word16) whose value falls in the
+ range : 0x8000 <= var1 <= 0x7fff.
+
+ Outputs :
+ none
+
+ Return Value :
+ 16 bit short signed integer (Word16) whose value falls in the
+ range : 0x8000 <= var_out <= 0x7fff.
+ ----------------------------------------------------------------------------*/
+
+ static inline Word16 negate(Word16 var1)
+ {
+ return (((var1 == MIN_16) ? MAX_16 : -var1));
+ }
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : shl
+
+ Arithmetically shift the 16 bit input var1 left var2 positions.Zero fill
+ the var2 LSB of the result. If var2 is negative, arithmetically shift
+ var1 right by -var2 with sign extension. Saturate the result in case of
+ underflows or overflows.
+
+ Inputs :
+ var1
+ 16 bit short signed integer (Word16) whose value falls in the
+ range : 0x8000 <= var1 <= 0x7fff.
+
+ var2
+ 16 bit short signed integer (Word16) whose value falls in the
+ range : 0x8000 <= var1 <= 0x7fff.
+
+ pOverflow : pointer to overflow (Flag)
+
+ Return Value :
+ var_out
+ 16 bit short signed integer (Word16) whose value falls in the
+ range : 0x8000 <= var_out <= 0x7fff.
+ ----------------------------------------------------------------------------*/
+
+ static inline Word16 shl(Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ Word16 var_out = 0;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ if (var2 < 0)
+ {
+ var2 = -var2;
+ if (var2 < 15)
+ {
+ var_out = var1 >> var2;
+ }
+
+ }
+ else
+ {
+ var_out = var1 << var2;
+ if (var_out >> var2 != var1)
+ {
+ var_out = (var1 >> 15) ^ MAX_16;
+ }
+ }
+ return (var_out);
+ }
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : L_shl
+
+ Arithmetically shift the 32 bit input L_var1 left var2 positions. Zero
+ fill the var2 LSB of the result. If var2 is negative, arithmetically
+ shift L_var1 right by -var2 with sign extension. Saturate the result in
+ case of underflows or overflows.
+
+ Inputs :
+ L_var1 32 bit long signed integer (Word32) whose value falls in the
+ range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ var2
+ 16 bit short signed integer (Word16) whose value falls in the
+ range : 8000 <= var2 <= 7fff.
+
+ pOverflow : pointer to overflow (Flag)
+
+ Return Value :
+ 32 bit long signed integer (Word32) whose value falls in the
+ range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
+
+ ----------------------------------------------------------------------------*/
+
+ static inline Word32 L_shl(Word32 L_var1, Word16 var2, Flag *pOverflow)
+ {
+ Word32 L_var_out = 0;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ if (var2 > 0)
+ {
+ L_var_out = L_var1 << var2;
+ if (L_var_out >> var2 != L_var1)
+ {
+ L_var_out = (L_var1 >> 31) ^ MAX_32;
+ }
+ }
+ else
+ {
+ var2 = -var2;
+ if (var2 < 31)
+ {
+ L_var_out = L_var1 >> var2;
+ }
+
+ }
+
+ return (L_var_out);
+ }
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : L_shr
+
+ Arithmetically shift the 32 bit input L_var1 right var2 positions with
+ sign extension. If var2 is negative, arithmetically shift L_var1 left
+ by -var2 and zero fill the -var2 LSB of the result. Saturate the result
+ in case of underflows or overflows.
+
+ Inputs :
+ L_var1 32 bit long signed integer (Word32) whose value falls in the
+ range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ var2
+ 16 bit short signed integer (Word16) whose value falls in the
+ range : 8000 <= var2 <= 7fff.
+
+ pOverflow : pointer to overflow (Flag)
+
+ Return Value :
+ 32 bit long signed integer (Word32) whose value falls in the
+ range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
+
+ ----------------------------------------------------------------------------*/
+
+ static inline Word32 L_shr(Word32 L_var1, Word16 var2, Flag *pOverflow)
+ {
+ Word32 L_var_out = 0;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ if (var2 > 0)
+ {
+ if (var2 < 31)
+ {
+ L_var_out = L_var1 >> var2;
+ }
+ }
+ else
+ {
+ var2 = -var2;
+
+ L_var_out = L_var1 << (var2) ;
+ if ((L_var_out >> (var2)) != L_var1)
+ {
+ L_var_out = (L_var1 >> 31) ^ MAX_32;
+ }
+
+ }
+
+ return (L_var_out);
+ }
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : abs_s
+
+ Absolute value of var1; abs_s(-32768) = 32767.
+
+ Inputs :
+ var1
+ 16 bit short signed integer (Word16) whose value falls in the
+ range : 0x8000 <= var1 <= 0x7fff.
+
+ pOverflow : pointer to overflow (Flag)
+
+ Outputs :
+ none
+
+ Return Value :
+ 16 bit short signed integer (Word16) whose value falls in the
+ range : 0x0000 <= var_out <= 0x7fff.
+
+ ----------------------------------------------------------------------------*/
+
+ static inline Word16 abs_s(Word16 var1)
+ {
+
+ Word16 y = var1 - (var1 < 0);
+ y = y ^(y >> 15);
+ return (y);
+
+ }
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* BASIC_OP_H */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: basic_op_arm_gcc_v5.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file includes all the GCC-ARM V5 basicop.c functions.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef BASIC_OP_ARM_GCC_V5_H
+#define BASIC_OP_ARM_GCC_V5_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: L_add
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ L_var2 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit add operation resulted in overflow
+
+ Returns:
+ L_sum = 32-bit sum of L_var1 and L_var2 (Word32)
+ */
+
+ __inline Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow)
+ {
+ register Word32 ra = L_var1;
+ register Word32 rb = L_var2;
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("qadd %0, %1, %2"
+ : "=r"(result)
+ : "r"(ra), "r"(rb)
+ );
+ return (result);
+
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: L_sub
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ L_var2 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit add operation resulted in overflow
+
+ Returns:
+ L_diff = 32-bit difference of L_var1 and L_var2 (Word32)
+ */
+ __inline Word32 L_sub(Word32 L_var1, Word32 L_var2, Flag *pOverflow)
+{
+ register Word32 ra = L_var1;
+ register Word32 rb = L_var2;
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("qsub %0, %1, %2"
+ : "=r"(result)
+ : "r"(ra), "r"(rb)
+ );
+
+ return (result);
+ }
+
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: L_mac
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var3 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit add operation resulted in overflow
+
+ Returns:
+ result = 32-bit result of L_var3 + (var1 * var2)(Word32)
+ */
+ static inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
+{
+ register Word32 ra = L_var3;
+ register Word32 rb = var1;
+ register Word32 rc = var2;
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(result)
+ : "r"(rb), "r"(rc)
+ );
+
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(rc)
+ : "r"(ra), "r"(result)
+ );
+
+ return (rc);
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: L_mult
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ L_var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit add operation resulted in overflow
+
+ Returns:
+ L_product = 32-bit product of L_var1 and L_var2 (Word32)
+ */
+
+ __inline Word32 L_mult(Word16 var1, Word16 var2, Flag *pOverflow)
+{
+ register Word32 ra = var1;
+ register Word32 rb = var2;
+ Word32 result;
+ Word32 product;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(product)
+ : "r"(ra), "r"(rb)
+ );
+
+ asm volatile("qadd %0, %1, %2"
+ : "=r"(result)
+ : "r"(product), "r"(product)
+ );
+
+ return(result);
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: L_msu
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var3 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit operation resulted in overflow
+
+ Returns:
+ result = 32-bit result of L_var3 - (var1 * var2)
+ */
+ __inline Word32 L_msu(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
+{
+ register Word32 ra = L_var3;
+ register Word32 rb = var1;
+ register Word32 rc = var2;
+ Word32 product;
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(product)
+ : "r"(rb), "r"(rc)
+ );
+
+ asm volatile("qdsub %0, %1, %2"
+ : "=r"(result)
+ : "r"(ra), "r"(product)
+ );
+
+ return (result);
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: Mpy_32
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1_hi = most significant word of first input (Word16).
+ L_var1_lo = least significant word of first input (Word16).
+ L_var2_hi = most significant word of second input (Word16).
+ L_var2_lo = least significant word of second input (Word16).
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit multiply operation resulted in overflow
+
+ Returns:
+ L_product = 32-bit product of L_var1 and L_var2 (Word32)
+ */
+ static inline Word32 Mpy_32(Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 L_var2_hi,
+ Word16 L_var2_lo,
+ Flag *pOverflow)
+{
+ register Word32 product32;
+ register Word32 L_sum;
+ register Word32 L_product, result;
+ register Word32 ra = L_var1_hi;
+ register Word32 rb = L_var1_lo;
+ register Word32 rc = L_var2_hi;
+ register Word32 rd = L_var2_lo;
+
+
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(L_product)
+ : "r"(ra), "r"(rc)
+ );
+ asm volatile("mov %0, #0"
+ : "=r"(result)
+ );
+
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(L_sum)
+ : "r"(result), "r"(L_product)
+ );
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(product32)
+ : "r"(ra), "r"(rd)
+ );
+
+ asm volatile("mov %0, %1, ASR #15"
+ : "=r"(ra)
+ : "r"(product32)
+ );
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(L_product)
+ : "r"(L_sum), "r"(ra)
+ );
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(product32)
+ : "r"(rb), "r"(rc)
+ );
+
+ asm volatile("mov %0, %1, ASR #15"
+ : "=r"(rb)
+ : "r"(product32)
+ );
+
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(L_sum)
+ : "r"(L_product), "r"(rb)
+ );
+
+ return (L_sum);
+ }
+
+
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: Mpy_32_16
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1_hi = most significant 16 bits of 32-bit input (Word16).
+ L_var1_lo = least significant 16 bits of 32-bit input (Word16).
+ var2 = 16-bit signed integer (Word16).
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit product operation resulted in overflow
+
+ Returns:
+ product = 32-bit product of the 32-bit L_var1 and 16-bit var1 (Word32)
+ */
+ static inline Word32 Mpy_32_16(Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 var2,
+ Flag *pOverflow)
+{
+
+ register Word32 ra = L_var1_hi;
+ register Word32 rb = L_var1_lo;
+ register Word32 rc = var2;
+ Word32 result, L_product;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(L_product)
+ : "r"(ra), "r"(rc)
+ );
+ asm volatile("mov %0, #0"
+ : "=r"(result)
+ );
+
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(L_product)
+ : "r"(result), "r"(L_product)
+ );
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(result)
+ : "r"(rb), "r"(rc)
+ );
+
+ asm volatile("mov %0, %1, ASR #15"
+ : "=r"(ra)
+ : "r"(result)
+ );
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(result)
+ : "r"(L_product), "r"(ra)
+ );
+
+ return (result);
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: mult
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the add operation resulted in overflow
+
+ Returns:
+ product = 16-bit limited product of var1 and var2 (Word16)
+ */
+ __inline Word16 mult(Word16 var1, Word16 var2, Flag *pOverflow)
+{
+ register Word32 ra = var1;
+ register Word32 rb = var2;
+ Word32 product;
+ Word32 temp;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile(
+ "smulbb %0, %1, %2"
+ : "=r"(temp)
+ : "r"(ra), "r"(rb)
+ );
+ asm volatile(
+ "qadd %0, %1, %2\n\t"
+ "mov %0, %0, asr #16"
+ : "=&r*i"(product)
+ : "r"(temp), "r"(temp)
+ );
+
+ return ((Word16) product);
+ }
+
+ __inline Word32 amrnb_fxp_mac_16_by_16bb(Word32 L_var1, Word32 L_var2, Word32 L_var3)
+{
+ register Word32 ra = L_var1;
+ register Word32 rb = L_var2;
+ register Word32 rc = L_var3;
+ Word32 result;
+
+ asm volatile("smlabb %0, %1, %2, %3"
+ : "=r"(result)
+ : "r"(ra), "r"(rb), "r"(rc)
+ );
+ return (result);
+ }
+
+ __inline Word32 amrnb_fxp_msu_16_by_16bb(Word32 L_var1, Word32 L_var2, Word32 L_var3)
+{
+ register Word32 ra = L_var1;
+ register Word32 rb = L_var2;
+ register Word32 rc = L_var3;
+ Word32 result;
+
+ asm volatile("rsb %0, %1, #0"
+ : "=r"(ra)
+ : "r"(ra)
+ );
+
+ asm volatile("smlabb %0, %1, %2, %3"
+ : "=r"(result)
+ : "r"(ra), "r"(rb), "r"(rc)
+ );
+ return (result);
+ }
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BASIC_OP_ARM_GCC_V5_H */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: basic_op_c_equivalent.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file includes all the C-Equivalent basicop.c functions.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef BASIC_OP_C_EQUIVALENT_H
+#define BASIC_OP_C_EQUIVALENT_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: L_add
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ L_var2 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit add operation resulted in overflow
+
+ Returns:
+ L_sum = 32-bit sum of L_var1 and L_var2 (Word32)
+ */
+ static inline Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow)
+ {
+ Word32 L_sum;
+
+ L_sum = L_var1 + L_var2;
+
+ if ((L_var1 ^ L_var2) >= 0)
+ {
+ if ((L_sum ^ L_var1) < 0)
+ {
+ L_sum = (L_var1 < 0) ? MIN_32 : MAX_32;
+ *pOverflow = 1;
+ }
+ }
+
+ return (L_sum);
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: L_sub
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ L_var2 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit add operation resulted in overflow
+
+ Returns:
+ L_diff = 32-bit difference of L_var1 and L_var2 (Word32)
+ */
+ static inline Word32 L_sub(register Word32 L_var1, register Word32 L_var2,
+ register Flag *pOverflow)
+ {
+ Word32 L_diff;
+
+ L_diff = L_var1 - L_var2;
+
+ if ((L_var1 ^ L_var2) < 0)
+ {
+ if ((L_diff ^ L_var1) & MIN_32)
+ {
+ L_diff = (L_var1 < 0L) ? MIN_32 : MAX_32;
+ *pOverflow = 1;
+ }
+ }
+
+ return (L_diff);
+ }
+
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: L_mac
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var3 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit add operation resulted in overflow
+
+ Returns:
+ result = 32-bit result of L_var3 + (var1 * var2)(Word32)
+ */
+ static inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ Word32 result;
+ Word32 L_sum;
+ result = (Word32) var1 * var2;
+ if (result != (Word32) 0x40000000L)
+ {
+ L_sum = (result << 1) + L_var3;
+
+ /* Check if L_sum and L_var_3 share the same sign */
+ if ((L_var3 ^ result) > 0)
+ {
+ if ((L_sum ^ L_var3) < 0)
+ {
+ L_sum = (L_var3 < 0) ? MIN_32 : MAX_32;
+ *pOverflow = 1;
+ }
+ }
+ }
+ else
+ {
+ *pOverflow = 1;
+ L_sum = MAX_32;
+ }
+ return (L_sum);
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: L_mult
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ L_var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit add operation resulted in overflow
+
+ Returns:
+ L_product = 32-bit product of L_var1 and L_var2 (Word32)
+ */
+ static inline Word32 L_mult(Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ register Word32 L_product;
+
+ L_product = (Word32) var1 * var2;
+
+ if (L_product != (Word32) 0x40000000L)
+ {
+ L_product <<= 1; /* Multiply by 2 */
+ }
+ else
+ {
+ *pOverflow = 1;
+ L_product = MAX_32;
+ }
+
+ return (L_product);
+ }
+
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: L_msu
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var3 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit operation resulted in overflow
+
+ Returns:
+ result = 32-bit result of L_var3 - (var1 * var2)
+ */
+
+ static inline Word32 L_msu(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ Word32 result;
+
+ result = L_mult(var1, var2, pOverflow);
+ result = L_sub(L_var3, result, pOverflow);
+
+ return (result);
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: Mpy_32
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1_hi = most significant word of first input (Word16).
+ L_var1_lo = least significant word of first input (Word16).
+ L_var2_hi = most significant word of second input (Word16).
+ L_var2_lo = least significant word of second input (Word16).
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit multiply operation resulted in overflow
+
+ Returns:
+ L_product = 32-bit product of L_var1 and L_var2 (Word32)
+ */
+ static inline Word32 Mpy_32(Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 L_var2_hi,
+ Word16 L_var2_lo,
+ Flag *pOverflow)
+ {
+ Word32 L_product;
+ Word32 L_sum;
+ Word32 product32;
+
+ OSCL_UNUSED_ARG(pOverflow);
+ L_product = (Word32) L_var1_hi * L_var2_hi;
+
+ if (L_product != (Word32) 0x40000000L)
+ {
+ L_product <<= 1;
+ }
+ else
+ {
+ L_product = MAX_32;
+ }
+
+ /* result = mult (L_var1_hi, L_var2_lo, pOverflow); */
+ product32 = ((Word32) L_var1_hi * L_var2_lo) >> 15;
+
+ /* L_product = L_mac (L_product, result, 1, pOverflow); */
+ L_sum = L_product + (product32 << 1);
+
+ if ((L_product ^ product32) > 0)
+ {
+ if ((L_sum ^ L_product) < 0)
+ {
+ L_sum = (L_product < 0) ? MIN_32 : MAX_32;
+ }
+ }
+
+ L_product = L_sum;
+
+ /* result = mult (L_var1_lo, L_var2_hi, pOverflow); */
+ product32 = ((Word32) L_var1_lo * L_var2_hi) >> 15;
+
+ /* L_product = L_mac (L_product, result, 1, pOverflow); */
+ L_sum = L_product + (product32 << 1);
+
+ if ((L_product ^ product32) > 0)
+ {
+ if ((L_sum ^ L_product) < 0)
+ {
+ L_sum = (L_product < 0) ? MIN_32 : MAX_32;
+ }
+ }
+ return (L_sum);
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: Mpy_32_16
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1_hi = most significant 16 bits of 32-bit input (Word16).
+ L_var1_lo = least significant 16 bits of 32-bit input (Word16).
+ var2 = 16-bit signed integer (Word16).
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit product operation resulted in overflow
+
+ Returns:
+ product = 32-bit product of the 32-bit L_var1 and 16-bit var1 (Word32)
+ */
+
+ static inline Word32 Mpy_32_16(Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 var2,
+ Flag *pOverflow)
+ {
+
+ Word32 L_product;
+ Word32 L_sum;
+ Word32 result;
+ L_product = (Word32) L_var1_hi * var2;
+
+ if (L_product != (Word32) 0x40000000L)
+ {
+ L_product <<= 1;
+ }
+ else
+ {
+ *pOverflow = 1;
+ L_product = MAX_32;
+ }
+
+ result = ((Word32)L_var1_lo * var2) >> 15;
+
+ L_sum = L_product + (result << 1);
+
+ if ((L_product ^ result) > 0)
+ {
+ if ((L_sum ^ L_product) < 0)
+ {
+ L_sum = (L_product < 0) ? MIN_32 : MAX_32;
+ *pOverflow = 1;
+ }
+ }
+ return (L_sum);
+
+ }
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: mult
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the add operation resulted in overflow
+
+ Returns:
+ product = 16-bit limited product of var1 and var2 (Word16)
+ */
+ static inline Word16 mult(Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ register Word32 product;
+
+ product = ((Word32) var1 * var2) >> 15;
+
+ /* Saturate result (if necessary). */
+ /* var1 * var2 >0x00007fff is the only case */
+ /* that saturation occurs. */
+
+ if (product > 0x00007fffL)
+ {
+ *pOverflow = 1;
+ product = (Word32) MAX_16;
+ }
+
+
+ /* Return the product as a 16 bit value by type casting Word32 to Word16 */
+
+ return ((Word16) product);
+ }
+
+
+ static inline Word32 amrnb_fxp_mac_16_by_16bb(Word32 L_var1, Word32 L_var2, Word32 L_var3)
+ {
+ Word32 result;
+
+ result = L_var3 + L_var1 * L_var2;
+
+ return result;
+ }
+
+ static inline Word32 amrnb_fxp_msu_16_by_16bb(Word32 L_var1, Word32 L_var2, Word32 L_var3)
+ {
+ Word32 result;
+
+ result = L_var3 - L_var1 * L_var2;
+
+ return result;
+ }
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BASIC_OP_C_EQUIVALENT_H */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: basicop_malloc.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains constant definitions and external references to the stores
+ used by any arithmetic function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef BASICOP_MALLOC_H
+#define BASICOP_MALLOC_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define MAX_32 (Word32)0x7fffffffL
+#define MIN_32 (Word32)0x80000000L
+
+#define MAX_16 (Word16)0x7fff
+#define MIN_16 (Word16)0x8000
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern Flag Overflow;
+ extern Flag Carry;
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: bitno_tab.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file declares a tables in bitno_tab.c.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef BITNO_TAB_H
+#define BITNO_TAB_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define BIT_0 0
+#define BIT_1 1
+
+#define PRMNO_MR475 17
+#define PRMNO_MR515 19
+#define PRMNO_MR59 19
+#define PRMNO_MR67 19
+#define PRMNO_MR74 19
+#define PRMNO_MR795 23
+#define PRMNO_MR102 39
+#define PRMNO_MR122 57
+#define PRMNO_MRDTX 5
+
+ /* number of parameters to first subframe */
+#define PRMNOFSF_MR475 7
+#define PRMNOFSF_MR515 7
+#define PRMNOFSF_MR59 7
+#define PRMNOFSF_MR67 7
+#define PRMNOFSF_MR74 7
+#define PRMNOFSF_MR795 8
+#define PRMNOFSF_MR102 12
+#define PRMNOFSF_MR122 18
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 prmno[];
+ extern const Word16 prmnofsf[];
+ extern const Word16 bitno_MR475[];
+ extern const Word16 bitno_MR515[];
+ extern const Word16 bitno_MR59[];
+ extern const Word16 bitno_MR67[];
+ extern const Word16 bitno_MR74[];
+ extern const Word16 bitno_MR95[];
+ extern const Word16 bitno_MR102[];
+ extern const Word16 bitno_MR122[];
+ extern const Word16 bitno_MRDTX[];
+ extern const Word16 *const bitno[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: bitreorder_tab.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file declares a tables in bitreorder.c.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef BITREORDER_H
+#define BITREORDER_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 numOfBits[];
+ extern const Word16 reorderBits_MR475[];
+ extern const Word16 reorderBits_MR515[];
+ extern const Word16 reorderBits_MR59[];
+ extern const Word16 reorderBits_MR67[];
+ extern const Word16 reorderBits_MR74[];
+ extern const Word16 reorderBits_MR795[];
+ extern const Word16 reorderBits_MR102[];
+ extern const Word16 reorderBits_MR122[];
+
+ extern const Word16 *const reorderBits[];
+ extern const Word16 numCompressedBytes[];
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: bytesused.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file declares a table BytesUsed.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef BYTESUSED_H
+#define BYTESUSED_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const short BytesUsed[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ INCLUDE DESCRIPTION
+
+ This file contains the Speech code (encoder, decoder, and postfilter)
+ constant parameters.
+
+ NOTE: This file must be synchronized with /gsm-amr/asm/include/cnst.inc file.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef _CNST_H_
+#define _CNST_H_
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define L_TOTAL 320 /* Total size of speech buffer. */
+#define L_WINDOW 240 /* Window size in LP analysis */
+#define L_FRAME 160 /* Frame size */
+#define L_FRAME_BY2 80 /* Frame size divided by 2 */
+#define L_SUBFR 40 /* Subframe size */
+#define L_CODE 40 /* codevector length */
+#define NB_TRACK 5 /* number of tracks */
+#define STEP 5 /* codebook step size */
+#define NB_TRACK_MR102 4 /* number of tracks mode mr102 */
+#define STEP_MR102 4 /* codebook step size mode mr102 */
+#define M 10 /* Order of LP filter */
+#define MP1 (M+1) /* Order of LP filter + 1 */
+#define LSF_GAP 205 /* Minimum distance between LSF after quan- */
+ /* tization; 50 Hz = 205 */
+#define LSP_PRED_FAC_MR122 21299 /* MR122 LSP prediction factor (0.65 Q15) */
+#define AZ_SIZE (4*M+4) /* Size of array of LP filters in 4 subfr.s */
+#define PIT_MIN_MR122 18 /* Minimum pitch lag (MR122 mode) */
+#define PIT_MIN 20 /* Minimum pitch lag (all other modes) */
+#define PIT_MAX 143 /* Maximum pitch lag */
+#define L_INTERPOL (10+1) /* Length of filter for interpolation */
+#define L_INTER_SRCH 4 /* Length of filter for CL LTP search */
+ /* interpolation */
+
+#define MU 26214 /* Factor for tilt compensation filter 0.8 */
+#define AGC_FAC 29491 /* Factor for automatic gain control 0.9 */
+
+#define L_NEXT 40 /* Overhead in LP analysis */
+#define SHARPMAX 13017 /* Maximum value of pitch sharpening */
+#define SHARPMIN 0 /* Minimum value of pitch sharpening */
+
+
+#define MAX_PRM_SIZE 57 /* max. num. of params */
+#define MAX_SERIAL_SIZE 244 /* max. num. of serial bits */
+
+#define GP_CLIP 15565 /* Pitch gain clipping = 0.95 */
+#define N_FRAME 7 /* old pitch gains in average calculation */
+
+#define EHF_MASK 0x0008 /* encoder homing frame pattern */
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CNST_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+**-------------------------------------------------------------------------**
+** **
+** GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001 **
+** R99 Version 3.2.0 **
+** REL-4 Version 4.0.0 **
+** **
+**-------------------------------------------------------------------------**
+********************************************************************************
+*
+* File : cnst_vad.h
+* Purpose : Constants and definitions for VAD
+*
+********************************************************************************
+*/
+#ifndef cnst_vad_h
+#define cnst_vad_h "$Id $"
+
+#define FRAME_LEN 160 /* Length (samples) of the input frame */
+#define COMPLEN 9 /* Number of sub-bands used by VAD */
+#define INV_COMPLEN 3641 /* 1.0/COMPLEN*2^15 */
+#define LOOKAHEAD 40 /* length of the lookahead used by speech coder */
+
+#define UNITY 512 /* Scaling used with SNR calculation */
+#define UNIRSHFT 6 /* = log2(MAX_16/UNITY) */
+
+#define TONE_THR (Word16)(0.65*MAX_16) /* Threshold for tone detection */
+
+/* Constants for background spectrum update */
+#define ALPHA_UP1 (Word16)((1.0 - 0.95)*MAX_16) /* Normal update, upwards: */
+#define ALPHA_DOWN1 (Word16)((1.0 - 0.936)*MAX_16) /* Normal update, downwards */
+#define ALPHA_UP2 (Word16)((1.0 - 0.985)*MAX_16) /* Forced update, upwards */
+#define ALPHA_DOWN2 (Word16)((1.0 - 0.943)*MAX_16) /* Forced update, downwards */
+#define ALPHA3 (Word16)((1.0 - 0.95)*MAX_16) /* Update downwards */
+#define ALPHA4 (Word16)((1.0 - 0.9)*MAX_16) /* For stationary estimation */
+#define ALPHA5 (Word16)((1.0 - 0.5)*MAX_16) /* For stationary estimation */
+
+/* Constants for VAD threshold */
+#define VAD_THR_HIGH 1260 /* Highest threshold */
+#define VAD_THR_LOW 720 /* Lowest threshold */
+#define VAD_P1 0 /* Noise level for highest threshold */
+#define VAD_P2 6300 /* Noise level for lowest threshold */
+#define VAD_SLOPE (Word16)(MAX_16*(float)(VAD_THR_LOW-VAD_THR_HIGH)/(float)(VAD_P2-VAD_P1))
+
+/* Parameters for background spectrum recovery function */
+#define STAT_COUNT 20 /* threshold of stationary detection counter */
+#define STAT_COUNT_BY_2 10 /* threshold of stationary detection counter */
+#define CAD_MIN_STAT_COUNT 5 /* threshold of stationary detection counter */
+
+#define STAT_THR_LEVEL 184 /* Threshold level for stationarity detection */
+#define STAT_THR 1000 /* Threshold for stationarity detection */
+
+/* Limits for background noise estimate */
+#define NOISE_MIN 40 /* minimum */
+#define NOISE_MAX 16000 /* maximum */
+#define NOISE_INIT 150 /* initial */
+
+/* Constants for VAD hangover addition */
+#define HANG_NOISE_THR 100
+#define BURST_LEN_HIGH_NOISE 4
+#define HANG_LEN_HIGH_NOISE 7
+#define BURST_LEN_LOW_NOISE 5
+#define HANG_LEN_LOW_NOISE 4
+
+/* Thresholds for signal power */
+#define VAD_POW_LOW (Word32)15000 /* If input power is lower, */
+/* VAD is set to 0 */
+#define POW_PITCH_THR (Word32)343040 /* If input power is lower, pitch */
+/* detection is ignored */
+
+#define POW_COMPLEX_THR (Word32)15000 /* If input power is lower, complex */
+/* flags value for previous frame is un-set */
+
+
+/* Constants for the filter bank */
+#define LEVEL_SHIFT 0 /* scaling */
+#define COEFF3 13363 /* coefficient for the 3rd order filter */
+#define COEFF5_1 21955 /* 1st coefficient the for 5th order filter */
+#define COEFF5_2 6390 /* 2nd coefficient the for 5th order filter */
+
+/* Constants for pitch detection */
+#define LTHRESH 4
+#define NTHRESH 4
+
+/* Constants for complex signal VAD */
+#define CVAD_THRESH_ADAPT_HIGH (Word16)(0.6 * MAX_16) /* threshold for adapt stopping high */
+#define CVAD_THRESH_ADAPT_LOW (Word16)(0.5 * MAX_16) /* threshold for adapt stopping low */
+#define CVAD_THRESH_IN_NOISE (Word16)(0.65 * MAX_16) /* threshold going into speech on */
+/* a short term basis */
+
+#define CVAD_THRESH_HANG (Word16)(0.70 * MAX_16) /* threshold */
+#define CVAD_HANG_LIMIT (Word16)(100) /* 2 second estimation time */
+#define CVAD_HANG_LENGTH (Word16)(250) /* 5 second hangover */
+
+#define CVAD_LOWPOW_RESET (Word16) (0.40 * MAX_16) /* init in low power segment */
+#define CVAD_MIN_CORR (Word16) (0.40 * MAX_16) /* lowest adaptation value */
+
+#define CVAD_BURST 20 /* speech burst length for speech reset */
+#define CVAD_ADAPT_SLOW (Word16)(( 1.0 - 0.98) * MAX_16) /* threshold for slow adaption */
+#define CVAD_ADAPT_FAST (Word16)((1.0 - 0.92) * MAX_16) /* threshold for fast adaption */
+#define CVAD_ADAPT_REALLY_FAST (Word16)((1.0 - 0.80) * MAX_16) /* threshold for really fast */
+/* adaption */
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: d_gain_c.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : d_gain_c.h
+ Purpose : Decode the fixed codebook gain using the received index.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _D_GAIN_C_H_
+#define _D_GAIN_C_H_
+#define d_gain_c_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "gc_pred.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ /*
+ * Function : d_gain_code
+ * Purpose : Decode the fixed codebook gain using the received index.
+ * Description : The received index gives the gain correction factor
+ * gamma. The quantized gain is given by g_q = g0 * gamma
+ * where g0 is the predicted gain. To find g0, 4th order
+ * MA prediction is applied to the mean-removed innovation
+ * energy in dB.
+ * Returns : void
+ */
+ void d_gain_code(
+ gc_predState *pred_state, /* i/o : MA predictor state */
+ enum Mode mode, /* i : AMR mode */
+ Word16 index, /* i : received quantization index */
+ Word16 code[], /* i : innovation codevector */
+ const Word16* qua_gain_code_ptr, /* i : Pointer to read-only table */
+ Word16 *gain_code, /* o : decoded innovation gain */
+ Flag *pOverflow
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _D_GAIN_C_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : d_gain_p.h
+* Purpose : Decodes the pitch gain using the received index.
+*
+********************************************************************************
+*/
+#ifndef d_gain_p_h
+#define d_gain_p_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+#include "mode.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ **************************************************************************
+ *
+ * Function : d_gain_pitch
+ * Purpose : Decodes the pitch gain using the received index.
+ * Description : In case of no frame erasure, the gain is obtained
+ * from the quantization table at the given index;
+ * otherwise, a downscaled past gain is used.
+ * Returns : Quantized pitch gain
+ *
+ **************************************************************************
+ */
+ Word16 d_gain_pitch( /* return value: gain (Q14) */
+ enum Mode mode, /* i : AMR mode */
+ Word16 index, /* i : index of quantization */
+ const Word16* qua_gain_pitch_ptr /* i : pointer to read-only tables */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: d_plsf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the d_plsf_3.c and d_plsf_5.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef d_plsf_h
+#define d_plsf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "mode.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 past_r_q[M]; /* Past quantized prediction error, Q15 */
+ Word16 past_lsf_q[M]; /* Past dequantized lsfs, Q15 */
+ } D_plsfState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*
+ **************************************************************************
+ *
+ * Function : D_plsf_reset
+ * Purpose : Resets state memory
+ * Returns : 0 on success
+ *
+ **************************************************************************
+ */
+ Word16 D_plsf_reset(D_plsfState *st, const Word16* mean_lsf_5_ptr);
+
+ /*
+ **************************************************************************
+ *
+ * Function : D_plsf_exit
+ * Purpose : The memory used for state memory is freed
+ * Description : Stores NULL in *st
+ * Returns : void
+ *
+ **************************************************************************
+ */
+ void D_plsf_exit(D_plsfState **st);
+
+ /*
+ **************************************************************************
+ *
+ * Function : D_plsf_5
+ * Purpose : Decodes the 2 sets of LSP parameters in a frame
+ * using the received quantization indices.
+ * Description : The two sets of LSFs are quantized using split by
+ * 5 matrix quantization (split-MQ) with 1st order MA
+ * prediction.
+ * See "q_plsf_5.c" for more details about the
+ * quantization procedure
+ * Returns : 0
+ *
+ **************************************************************************
+ */
+ void D_plsf_5(
+ D_plsfState *st, /* i/o: State variables */
+ Word16 bfi, /* i : bad frame indicator (set to 1 if a bad
+ frame is received) */
+ Word16 *indice, /* i : quantization indices of 5 submatrices, Q0 */
+ CommonAmrTbls* common_amr_tbls, /* i : structure containing ptrs to read-only tables */
+ Word16 *lsp1_q, /* o : quantized 1st LSP vector (M) Q15 */
+ Word16 *lsp2_q, /* o : quantized 2nd LSP vector (M) Q15 */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*************************************************************************
+ *
+ * FUNCTION: D_plsf_3()
+ *
+ * PURPOSE: Decodes the LSP parameters using the received quantization
+ * indices.1st order MA prediction and split by 3 matrix
+ * quantization (split-MQ)
+ *
+ *************************************************************************/
+
+ void D_plsf_3(
+ D_plsfState *st, /* i/o: State struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 bfi, /* i : bad frame indicator (set to 1 if a */
+ /* bad frame is received) */
+ Word16 * indice, /* i : quantization indices of 3 submatrices, Q0 */
+ CommonAmrTbls* common_amr_tbls, /* i : structure containing ptrs to read-only tables */
+ Word16 * lsp1_q, /* o : quantized 1st LSP vector, Q15 */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*************************************************************************
+ *
+ * FUNCTION: Init_D_plsf_3()
+ *
+ * PURPOSE: Set the past_r_q[M] vector to one of the eight
+ * past_rq_init vectors.
+ *
+ *************************************************************************/
+ void Init_D_plsf_3(D_plsfState *st, /* i/o: State struct */
+ Word16 index, /* i : past_rq_init[] index [0, 7] */
+ const Word16* past_rq_init_ptr /* ptr to read-only table */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _Q_PLSF_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: div_s.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the div_s function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef DIV_S_H
+#define DIV_S_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF Word16 div_s(Word16 var1, Word16 var2);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: dtx_common_def.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : dtx_common_def.h
+ Purpose : DTX definitions common to encoder and decoder
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef DTX_COMMON_DEF_H
+#define DTX_COMMON_DEF_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define DTX_MAX_EMPTY_THRESH 50
+#define DTX_HIST_SIZE 8
+#define DTX_ELAPSED_FRAMES_THRESH (24 + 7 -1)
+#define DTX_HANG_CONST 7 /* yields eight frames of SP HANGOVER */
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* DTX_COMMON_DEF_H */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+*****************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+*****************************************************************************
+*
+* File : frame.h
+* Purpose : Declaration of received and transmitted frame types
+*
+*****************************************************************************
+*/
+#ifndef frame_h
+#define frame_h "$Id $"
+
+/*
+*****************************************************************************
+* INCLUDE FILES
+*****************************************************************************
+*/
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ *****************************************************************************
+ * DEFINITION OF DATA TYPES
+ *****************************************************************************
+ * Note: The order of the TX and RX_Type identifiers has been chosen in
+ * the way below to be compatible to an earlier version of the
+ * AMR-NB C reference program.
+ *****************************************************************************
+ */
+
+ enum RXFrameType { RX_SPEECH_GOOD = 0,
+ RX_SPEECH_DEGRADED,
+ RX_ONSET,
+ RX_SPEECH_BAD,
+ RX_SID_FIRST,
+ RX_SID_UPDATE,
+ RX_SID_BAD,
+ RX_NO_DATA,
+ RX_N_FRAMETYPES /* number of frame types */
+ };
+
+ enum TXFrameType { TX_SPEECH_GOOD = 0,
+ TX_SID_FIRST,
+ TX_SID_UPDATE,
+ TX_NO_DATA,
+ TX_SPEECH_DEGRADED,
+ TX_SPEECH_BAD,
+ TX_SID_BAD,
+ TX_ONSET,
+ TX_N_FRAMETYPES /* number of frame types */
+ };
+
+
+ /* Channel decoded frame type */
+ enum CHDECFrameType { CHDEC_SID_FIRST = 0,
+ CHDEC_SID_FIRST_INCOMPLETE,
+ CHDEC_SID_UPDATE_INCOMPLETE,
+ CHDEC_SID_UPDATE,
+ CHDEC_SPEECH,
+ CHDEC_SPEECH_ONSET,
+ CHDEC_ESCAPE_MARKER,
+ CHDEC_ESCAPE_DATA,
+ CHDEC_NO_DATA
+ };
+
+ /* Channel decoded frame quality */
+ enum CHDECFrameQuality { CHDEC_GOOD = 0,
+ CHDEC_PROBABLY_DEGRADED,
+ CHDEC_PROBABLY_BAD,
+ CHDEC_BAD
+ };
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: frame_type_3gpp.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains the definition of the 3GPP frame types.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef FRAME_TYPE_3GPP_H
+#define FRAME_TYPE_3GPP_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ enum Frame_Type_3GPP
+ {
+ AMR_475 = 0,
+ AMR_515,
+ AMR_59,
+ AMR_67,
+ AMR_74,
+ AMR_795,
+ AMR_102,
+ AMR_122,
+ AMR_SID,
+ GSM_EFR_SID,
+ TDMA_EFR_SID,
+ PDC_EFR_SID,
+ FOR_FUTURE_USE1,
+ FOR_FUTURE_USE2,
+ FOR_FUTURE_USE3,
+ AMR_NO_DATA
+ };
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _FRAME_TYPE_3GPP_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: gc_pred.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : gc_pred.h
+ Purpose : codebook gain MA prediction
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _GC_PRED_H_
+#define _GC_PRED_H_
+#define gc_pred_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 past_qua_en[4]; /* normal MA predictor memory, Q10 */
+ /* (contains 20*log10(qua_err)) */
+ Word16 past_qua_en_MR122[4]; /* MA predictor memory for MR122 mode, Q10 */
+ /* (contains log2(qua_err)) */
+ } gc_predState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ OSCL_IMPORT_REF Word16 gc_pred_reset(gc_predState *st);
+ /* reset of codebook gain MA predictor state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+ void gc_pred_exit(gc_predState **st);
+ /* de-initialize codebook gain MA predictor state (i.e. free state struct)
+ stores NULL in *st
+ */
+
+ void
+ gc_pred_copy(
+ gc_predState *st_src, /* i : State struct */
+ gc_predState *st_dest /* o : State struct */
+ );
+
+ /*
+ * FUNCTION: gc_pred()
+ * PURPOSE: MA prediction of the innovation energy
+ * (in dB/(20*log10(2))) with mean removed).
+ */
+ OSCL_IMPORT_REF void gc_pred(
+ gc_predState *st, /* i/o: State struct */
+ enum Mode mode, /* i : AMR mode */
+ Word16 *code, /* i : innovative codebook vector (L_SUBFR) */
+ /* MR122: Q12, other modes: Q13 */
+ Word16 *exp_gcode0, /* o : exponent of predicted gain factor, Q0 */
+ Word16 *frac_gcode0,/* o : fraction of predicted gain factor Q15 */
+ Word16 *exp_en, /* o : exponent of innovation energy, Q0 */
+ /* (only calculated for MR795) */
+ Word16 *frac_en, /* o : fraction of innovation energy, Q15 */
+ /* (only calculated for MR795) */
+ Flag *pOverflow
+ );
+
+ /*
+ * FUNCTION: gc_pred_update()
+ * PURPOSE: update MA predictor with last quantized energy
+ */
+ OSCL_IMPORT_REF void gc_pred_update(
+ gc_predState *st, /* i/o: State struct */
+ Word16 qua_ener_MR122, /* i : quantized energy for update, Q10 */
+ /* (log2(qua_err)) */
+ Word16 qua_ener /* i : quantized energy for update, Q10 */
+ /* (20*log10(qua_err)) */
+ );
+
+ /*
+ * FUNCTION: gc_pred_average_limited()
+ * PURPOSE: get average of MA predictor state values (with a lower limit)
+ * [used in error concealment]
+ */
+ OSCL_IMPORT_REF void gc_pred_average_limited(
+ gc_predState *st, /* i: State struct */
+ Word16 *ener_avg_MR122, /* o: averaged quantized energy, Q10 */
+ /* (log2(qua_err)) */
+ Word16 *ener_avg, /* o: averaged quantized energy, Q10 */
+ /* (20*log10(qua_err)) */
+ Flag *pOverflow
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GC_PRED_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+#ifndef GET_CONST_TBLS_H
+#define GET_CONST_TBLS_H
+
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+ typedef struct
+ {
+ const Word16* dgray_ptr;
+ const Word16* dico1_lsf_3_ptr;
+ const Word16* dico1_lsf_5_ptr;
+ const Word16* dico2_lsf_3_ptr;
+ const Word16* dico2_lsf_5_ptr;
+ const Word16* dico3_lsf_3_ptr;
+ const Word16* dico3_lsf_5_ptr;
+ const Word16* dico4_lsf_5_ptr;
+ const Word16* dico5_lsf_5_ptr;
+ const Word16* gray_ptr;
+ const Word16* lsp_init_data_ptr;
+ const Word16* mean_lsf_3_ptr;
+ const Word16* mean_lsf_5_ptr;
+ const Word16* mr515_3_lsf_ptr;
+ const Word16* mr795_1_lsf_ptr;
+ const Word16* past_rq_init_ptr;
+ const Word16* pred_fac_3_ptr;
+ const Word16* qua_gain_code_ptr;
+ const Word16* qua_gain_pitch_ptr;
+ const Word16* startPos_ptr;
+ const Word16* table_gain_lowrates_ptr;
+ const Word16* table_gain_highrates_ptr;
+ const Word16* prmno_ptr;
+ const Word16* const* bitno_ptr;
+ const Word16* numOfBits_ptr;
+ const Word16* const* reorderBits_ptr;
+ const Word16* numCompressedBytes_ptr;
+ const Word16* window_200_40_ptr;
+ const Word16* window_160_80_ptr;
+ const Word16* window_232_8_ptr;
+ const Word16* ph_imp_low_MR795_ptr;
+ const Word16* ph_imp_mid_MR795_ptr;
+ const Word16* ph_imp_low_ptr;
+ const Word16* ph_imp_mid_ptr;
+ } CommonAmrTbls;
+
+ OSCL_IMPORT_REF void get_const_tbls(CommonAmrTbls* tbl_struct_ptr);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : gmed_n.h
+* Purpose : calculates N-point median.
+*
+********************************************************************************
+*/
+#ifndef gmed_n_h
+#define gmed_n_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * DEFINITION OF DATA TYPES
+ ********************************************************************************
+ */
+
+ /*
+ ********************************************************************************
+ * DECLARATION OF PROTOTYPES
+ ********************************************************************************
+ */
+ OSCL_IMPORT_REF Word16 gmed_n( /* o : index of the median value (0...N-1) */
+ Word16 ind[], /* i : Past gain values */
+ Word16 n /* i : The number of gains; this routine */
+ /* is only valid for a odd number of gains */
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: gsm_amr_typedefs.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains the definition of the amr codec types.
+
+------------------------------------------------------------------------------
+*/
+#ifndef GSM_AMR_TYPEDEFS_H
+#define GSM_AMR_TYPEDEFS_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "oscl_base.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+#ifndef Word8
+typedef int8 Word8;
+#endif
+
+#ifndef UWord8
+typedef uint8 UWord8;
+#endif
+
+
+/*----------------------------------------------------------------------------
+; Define 16 bit signed and unsigned words
+----------------------------------------------------------------------------*/
+
+#ifndef Word16
+typedef int16 Word16;
+
+#endif
+
+#ifndef UWord16
+typedef uint16 UWord16;
+
+#endif
+
+/*----------------------------------------------------------------------------
+; Define 32 bit signed and unsigned words
+----------------------------------------------------------------------------*/
+
+#ifndef Word32
+typedef int32 Word32;
+#endif
+
+#ifndef UWord32
+typedef uint32 UWord32;
+#endif
+
+
+/*----------------------------------------------------------------------------
+; Define boolean type
+----------------------------------------------------------------------------*/
+#ifndef Bool
+typedef int Bool;
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef OFF
+#define OFF 0
+#endif
+
+#ifndef ON
+#define ON 1
+#endif
+
+#ifndef NO
+#define NO 0
+#endif
+
+#ifndef YES
+#define YES 1
+#endif
+
+#ifndef SUCCESS
+#define SUCCESS 0
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#ifndef Flag
+typedef int32 Flag;
+#endif
+
+#endif /* GSM_AMR_TYPEDEFS_H */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: int_lpc.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the lsp_avg.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef int_lpc_h
+#define int_lpc_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*
+ **************************************************************************
+ *
+ * Function : Int_lpc_1and3
+ * Purpose : Interpolates the LSPs and converts to LPC parameters
+ * to get a different LP filter in each subframe.
+ * Description : The 20 ms speech frame is divided into 4 subframes.
+ * The LSPs are quantized and transmitted at the 2nd and
+ * 4th subframes (twice per frame) and interpolated at the
+ * 1st and 3rd subframe.
+ *
+ * |------|------|------|------|
+ * sf1 sf2 sf3 sf4
+ * F0 Fm F1
+ *
+ * sf1: 1/2 Fm + 1/2 F0 sf3: 1/2 F1 + 1/2 Fm
+ * sf2: Fm sf4: F1
+ * Returns : void
+ *
+ **************************************************************************
+ */
+ OSCL_IMPORT_REF void Int_lpc_1and3(
+ Word16 lsp_old[], /* i : LSP vector at the 4th subfr. of past frame (M) */
+ Word16 lsp_mid[], /* i : LSP vector at the 2nd subfr. of
+ present frame (M) */
+ Word16 lsp_new[], /* i : LSP vector at the 4th subfr. of
+ present frame (M) */
+ Word16 Az[], /* o : interpolated LP parameters in all subfr.
+ (AZ_SIZE) */
+ Flag *pOverflow
+ );
+
+ /*
+ **************************************************************************
+ *
+ * Function : Int_lpc_1and3_2
+ * Purpose : Interpolation of the LPC parameters. Same as the Int_lpc
+ * function but we do not recompute Az() for subframe 2 and
+ * 4 because it is already available.
+ * Returns : void
+ *
+ **************************************************************************
+ */
+ void Int_lpc_1and3_2(
+ Word16 lsp_old[], /* i : LSP vector at the 4th subfr. of past frame (M) */
+ Word16 lsp_mid[], /* i : LSP vector at the 2nd subframe of
+ present frame (M) */
+ Word16 lsp_new[], /* i : LSP vector at the 4th subframe of
+ present frame (M) */
+ Word16 Az[], /* o :interpolated LP parameters
+ in subframes 1 and 3 (AZ_SIZE) */
+ Flag *pOverflow
+ );
+
+ /*
+ **************************************************************************
+ *
+ * Function : Int_lpc_1to3
+ * Purpose : Interpolates the LSPs and converts to LPC parameters
+ * to get a different LP filter in each subframe.
+ * Description : The 20 ms speech frame is divided into 4 subframes.
+ * The LSPs are quantized and transmitted at the 4th
+ * subframes (once per frame) and interpolated at the
+ * 1st, 2nd and 3rd subframe.
+ *
+ * |------|------|------|------|
+ * sf1 sf2 sf3 sf4
+ * F0 F1
+ *
+ * sf1: 3/4 F0 + 1/4 F1 sf3: 1/4 F0 + 3/4 F1
+ * sf2: 1/2 F0 + 1/2 F1 sf4: F1
+ * Returns : void
+ *
+ **************************************************************************
+ */
+ OSCL_IMPORT_REF void Int_lpc_1to3(
+ Word16 lsp_old[], /* i : LSP vector at the 4th SF of past frame (M) */
+ Word16 lsp_new[], /* i : LSP vector at the 4th SF of present frame (M) */
+ Word16 Az[], /* o : interpolated LP parameters in all SFs (AZ_SIZE) */
+ Flag *pOverflow
+ );
+
+ /*
+ **************************************************************************
+ *
+ * Function : Int_lpc_1to3_2
+ * Purpose : Interpolation of the LPC parameters. Same as the Int_lpc
+ * function but we do not recompute Az() for subframe 4
+ * because it is already available.
+ * Returns : void
+ *
+ **************************************************************************
+ */
+ void Int_lpc_1to3_2(
+ Word16 lsp_old[], /* i : LSP vector at the 4th SF of past frame (M) */
+ Word16 lsp_new[], /* i : LSP vector at the 4th SF present frame (M) */
+ Word16 Az[], /* o :interpolated LP parameters in SFs 1, 2, 3
+ (AZ_SIZE) */
+ Flag *pOverflow
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _INT_LPC_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: int_lsf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the int_lsf function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef int_lsf_h
+#define int_lsf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void Int_lsf(
+ Word16 lsf_old[], /* i : LSF vector at the 4th SF of past frame */
+ Word16 lsf_new[], /* i : LSF vector at the 4th SF of present frame */
+ Word16 i_subfr, /* i : Current sf (equal to 0,40,80 or 120) */
+ Word16 lsf_out[], /* o : interpolated LSF parameters for current sf */
+ Flag *pOverflow /* o : flag set if overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _INT_LSF_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: inv_sqrt.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the inv_sqrt() function.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef INV_SQRT_H
+#define INV_SQRT_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 inv_sqrt_tbl[];
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF Word32 Inv_sqrt( /* (o) : output value */
+ Word32 L_x, /* (i) : input value */
+ Flag *pOverflow /* (i) : pointer to overflow flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _INV_SQRT_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: l_add.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_add function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_ADD_H
+#define L_ADD_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/
+
+ __inline Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow)
+ {
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+ __asm
+ {
+ QADD result, L_var1, L_var2
+ }
+ return(result);
+ }
+
+#elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/
+
+ __inline Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow)
+ {
+ register Word32 ra = L_var1;
+ register Word32 rb = L_var2;
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("qadd %0, %1, %2"
+ : "=r"(result)
+ : "r"(ra), "r"(rb)
+ );
+ return (result);
+
+ }
+
+#else /* C EQUIVALENT */
+
+
+ static inline Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow)
+ {
+ Word32 L_sum;
+
+ L_sum = L_var1 + L_var2;
+
+ if ((L_var1 ^ L_var2) >= 0)
+ {
+ if ((L_sum ^ L_var1) < 0)
+ {
+ L_sum = (L_var1 < 0) ? MIN_32 : MAX_32;
+ *pOverflow = 1;
+ }
+ }
+
+ return (L_sum);
+ }
+
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _L_ADD_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: l_add_c.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_add_c function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_ADD_C_H
+#define L_ADD_C_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word32 L_add_c(Word32 L_var1, Word32 L_var2, Flag *pOverflow, Flag *pCarry);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _L_ADD_C_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: l_comp.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_comp function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_COMP_H
+#define L_COMP_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word32 L_Comp(Word16 hi, Word16 lo, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: l_extract.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_extract function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_EXTRACT_H
+#define L_EXTRACT_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void L_Extract(Word32 L_var,
+ Word16 *pL_var_hi,
+ Word16 *pL_var_lo,
+ Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _L_EXTRACT_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: l_mac.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_mac function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_MAC_H
+#define L_MAC_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/
+
+ __inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ Word32 result;
+ Word32 L_sum;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ __asm {SMULBB result, var1, var2}
+ __asm {QDADD L_sum, L_var3, result}
+ return (L_sum);
+ }
+
+#elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/
+
+ static inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ register Word32 ra = L_var3;
+ register Word32 rb = var1;
+ register Word32 rc = var2;
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(result)
+ : "r"(rb), "r"(rc)
+ );
+
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(rc)
+ : "r"(ra), "r"(result)
+ );
+
+ return (rc);
+ }
+
+#else /* C_EQUIVALENT */
+
+ __inline Word32 L_mac(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ Word32 result;
+ Word32 L_sum;
+ result = (Word32) var1 * var2;
+ if (result != (Word32) 0x40000000L)
+ {
+ L_sum = (result << 1) + L_var3;
+
+ /* Check if L_sum and L_var_3 share the same sign */
+ if ((L_var3 ^ result) > 0)
+ {
+ if ((L_sum ^ L_var3) < 0)
+ {
+ L_sum = (L_var3 < 0) ? MIN_32 : MAX_32;
+ *pOverflow = 1;
+ }
+ }
+ }
+ else
+ {
+ *pOverflow = 1;
+ L_sum = MAX_32;
+ }
+ return (L_sum);
+ }
+
+#endif
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _L_MAC_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: l_msu.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_msu function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_MSU_H
+#define L_MSU_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+#include "l_mult.h"
+#include "l_sub.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/
+
+ __inline Word32 L_msu(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ Word32 product;
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ __asm
+ {
+ SMULBB product, var1, var2
+ QDSUB result, L_var3, product
+ }
+
+ return (result);
+ }
+
+#elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/
+
+ __inline Word32 L_msu(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ register Word32 ra = L_var3;
+ register Word32 rb = var1;
+ register Word32 rc = var2;
+ Word32 product;
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(product)
+ : "r"(rb), "r"(rc)
+ );
+
+ asm volatile("qdsub %0, %1, %2"
+ : "=r"(result)
+ : "r"(ra), "r"(product)
+ );
+
+ return (result);
+ }
+
+#else /* C EQUIVALENT */
+
+ static inline Word32 L_msu(Word32 L_var3, Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ Word32 result;
+
+ result = L_mult(var1, var2, pOverflow);
+ result = L_sub(L_var3, result, pOverflow);
+
+ return (result);
+ }
+
+#endif
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _L_MSU_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: l_mult.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_mult function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_MULT_H
+#define L_MULT_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+#if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/
+
+ __inline Word32 L_mult(Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ Word32 result;
+ Word32 product;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ __asm
+ {
+ SMULBB product, var1, var2
+ QADD result, product, product
+ }
+
+ return (result);
+ }
+
+#elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/
+
+ __inline Word32 L_mult(Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ register Word32 ra = var1;
+ register Word32 rb = var2;
+ Word32 result;
+ Word32 product;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(product)
+ : "r"(ra), "r"(rb)
+ );
+
+ asm volatile("qadd %0, %1, %2"
+ : "=r"(result)
+ : "r"(product), "r"(product)
+ );
+
+ return(result);
+ }
+
+#else /* C EQUIVALENT */
+
+ static inline Word32 L_mult(Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ register Word32 L_product;
+
+ L_product = (Word32) var1 * var2;
+
+ if (L_product != (Word32) 0x40000000L)
+ {
+ L_product <<= 1; /* Multiply by 2 */
+ }
+ else
+ {
+ *pOverflow = 1;
+ L_product = MAX_32;
+ }
+
+ return (L_product);
+ }
+#endif
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _L_MULT_H */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: l_negate.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_negate function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_NEGATE_H
+#define L_NEGATE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word32 L_negate(Word32 L_var1);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: l_shl.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_shl function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_SHL_H
+#define L_SHL_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word32 L_shl(Word32 L_var1, Word16 var2, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _L_SHL_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: l_shr.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_shr function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_SHR_H
+#define L_SHR_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word32 L_shr(Word32 L_var1, Word16 var2, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _L_SHR_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: l_shr_r.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_shr_r function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_SHR_R_H
+#define L_SHR_R_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF Word32 L_shr_r(Word32 L_var1, Word16 var2, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _L_SHR_R_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: l_sub.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_sub function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_SUB_H
+#define L_SUB_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/
+
+ __inline Word32 L_sub(Word32 L_var1, Word32 L_var2, Flag *pOverflow)
+ {
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ __asm
+ {
+ QSUB result, L_var1, L_var2
+ }
+
+ return(result);
+
+ }
+
+#elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/
+
+ __inline Word32 L_sub(Word32 L_var1, Word32 L_var2, Flag *pOverflow)
+ {
+ register Word32 ra = L_var1;
+ register Word32 rb = L_var2;
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("qsub %0, %1, %2"
+ : "=r"(result)
+ : "r"(ra), "r"(rb)
+ );
+
+ return (result);
+ }
+
+#else /* C EQUIVALENT */
+
+ static inline Word32 L_sub(register Word32 L_var1, register Word32 L_var2,
+ register Flag *pOverflow)
+ {
+ Word32 L_diff;
+
+ L_diff = L_var1 - L_var2;
+
+ if ((L_var1 ^ L_var2) < 0)
+ {
+ if ((L_diff ^ L_var1) & MIN_32)
+ {
+ L_diff = (L_var1 < 0L) ? MIN_32 : MAX_32;
+ *pOverflow = 1;
+ }
+ }
+
+ return (L_diff);
+ }
+
+#endif
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _L_SUB_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: log2.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains the function prototype definition for Log2 function.
+
+------------------------------------------------------------------------------
+*/
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef LOG2_H
+#define LOG2_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+#include "log2_norm.h" /* Used by legacy files */
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF void Log2(
+ Word32 L_x, /* (i) : input value */
+ Word16 *pExponent, /* (o) : Integer part of Log2. (range: 0<=val<=30)*/
+ Word16 *pFraction, /* (o) : Fractional part of Log2. (range: 0<=val<1) */
+ Flag *pOverflow /* (i/o) : overflow flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LOG2_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: log2_norm.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains the prototype declaration for Log2_norm function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef LOG2_NORM_H
+#define LOG2_NORM_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 log2_tbl[];
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void Log2_norm(
+ Word32 L_x, /* (i) : input value (normalized) */
+ Word16 exp, /* (i) : norm_l (L_x) */
+ Word16 *exponent, /* (o) : Integer part of Log2. (range: 0<=val<=30) */
+ Word16 *fraction /* (o) : Fractional part of Log2. (range: 0<=val<1) */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LOG2_NORM_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: lsfwt.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the lsfwt.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef lsfwt_h
+#define lsfwt_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void Lsf_wt(
+ Word16 *lsf, /* input : LSF vector */
+ Word16 *wf, /* output: square of weighting factors */
+ Flag * pOverflow); /* o : Flag set when overflow occurs */
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LSF_WT_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: lsp.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the lsp.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef lsp_h
+#define lsp_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "q_plsf.h"
+#include "mode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+
+ /* Past LSPs */
+ Word16 lsp_old[M];
+ Word16 lsp_old_q[M];
+
+ /* Quantization state */
+ Q_plsfState *qSt;
+
+ } lspState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ /*
+ **************************************************************************
+ *
+ * Function : lsp_init
+ * Purpose : Allocates memory and initializes state variables
+ * Description : Stores pointer to filter status struct in *st. This
+ * pointer has to be passed to lsp in each call.
+ * Returns : 0 on success
+ *
+ **************************************************************************
+ */
+ OSCL_IMPORT_REF Word16 lsp_init(lspState **st);
+
+ /*
+ **************************************************************************
+ *
+ * Function : lsp_reset
+ * Purpose : Resets state memory
+ * Returns : 0 on success
+ *
+ **************************************************************************
+ */
+ OSCL_IMPORT_REF Word16 lsp_reset(lspState *st);
+
+ /*
+ **************************************************************************
+ *
+ * Function : lsp_exit
+ * Purpose : The memory used for state memory is freed
+ * Description : Stores NULL in *st
+ *
+ **************************************************************************
+ */
+ OSCL_IMPORT_REF void lsp_exit(lspState **st);
+
+ /*
+ **************************************************************************
+ *
+ * Function : lsp
+ * Purpose : Conversion from LP coefficients to LSPs.
+ * Quantization of LSPs.
+ * Description : Generates 2 sets of LSPs from 2 sets of
+ * LP coefficients for mode 12.2. For the other
+ * modes 1 set of LSPs is generated from 1 set of
+ * LP coefficients. These LSPs are quantized with
+ * Matrix/Vector quantization (depending on the mode)
+ * and interpolated for the subframes not yet having
+ * their own LSPs.
+ *
+ **************************************************************************
+ */
+ OSCL_IMPORT_REF void lsp(lspState *st, /* i/o : State struct */
+ enum Mode req_mode, /* i : requested coder mode */
+ enum Mode used_mode,/* i : used coder mode */
+ Word16 az[], /* i/o : interpolated LP parameters Q12 */
+ Word16 azQ[], /* o : quantization interpol. LP parameters Q12*/
+ Word16 lsp_new[], /* o : new lsp vector */
+ Word16 **anap, /* o : analysis parameters */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LSP_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: lsp_az.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the lsp_az function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef LSP_AZ_H
+#define LSP_AZ_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF void Lsp_Az(
+ Word16 lsp[], /* (i) : line spectral frequencies */
+ Word16 a[], /* (o) : predictor coefficients (order = 10) */
+ Flag *pOverflow /* (o) : overflow flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LSP_AZ_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: lsp_lsf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the lsp_lsf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef lsp_lsf_h
+#define lsp_lsf_h
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ OSCL_IMPORT_REF void Lsf_lsp(
+ Word16 lsf[], /* (i) : lsf[m] normalized (range: 0.0<=val<=0.5) */
+ Word16 lsp[], /* (o) : lsp[m] (range: -1<=val<1) */
+ Word16 m, /* (i) : LPC order */
+ Flag *pOverflow /* (o) : Flag set when overflow occurs */
+ );
+ OSCL_IMPORT_REF void Lsp_lsf(
+ Word16 lsp[], /* (i) : lsp[m] (range: -1<=val<1) */
+ Word16 lsf[], /* (o) : lsf[m] normalized (range: 0.0<=val<=0.5) */
+ Word16 m, /* (i) : LPC order */
+ Flag *pOverflow /* (o) : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LSP_LSF_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: lsp_tab.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file declares a table lsp_init_data.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef LSP_TAB_H
+#define LSP_TAB_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 lsp_init_data[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: mac_32.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the Mac_32 and Mac_32_16 functions
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef MAC_32_H
+#define MAC_32_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ static inline Word32 Mac_32(Word32 L_var3,
+ Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 L_var2_hi,
+ Word16 L_var2_lo,
+ Flag *pOverflow)
+ {
+ Word16 product;
+
+ L_var3 = L_mac(L_var3, L_var1_hi, L_var2_hi, pOverflow);
+
+ product = mult(L_var1_hi, L_var2_lo, pOverflow);
+ L_var3 = L_mac(L_var3, product, 1, pOverflow);
+
+ product = mult(L_var1_lo, L_var2_hi, pOverflow);
+ L_var3 = L_mac(L_var3, product, 1, pOverflow);
+
+ return (L_var3);
+ }
+
+ static inline Word32 Mac_32_16(Word32 L_var3,
+ Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 var2,
+ Flag *pOverflow)
+ {
+ Word16 product;
+
+ L_var3 = L_mac(L_var3, L_var1_hi, var2, pOverflow);
+
+ product = mult(L_var1_lo, var2, pOverflow);
+ L_var3 = L_mac(L_var3, product, 1, pOverflow);
+
+ return (L_var3);
+ }
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _MAC_32_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : mode.h
+* Purpose : Declaration of mode type
+*
+********************************************************************************
+*/
+#ifndef mode_h
+#define mode_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * DEFINITION OF DATA TYPES
+ ********************************************************************************
+ */
+ enum Mode { MR475 = 0,
+ MR515,
+ MR59,
+ MR67,
+ MR74,
+ MR795,
+ MR102,
+ MR122,
+
+ MRDTX,
+
+ N_MODES /* number of (SPC) modes */
+
+ };
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: mpy_32.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the Mpy_32 function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef MPY_32_H
+#define MPY_32_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/
+
+ __inline Word32 Mpy_32(Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 L_var2_hi,
+ Word16 L_var2_lo,
+ Flag *pOverflow)
+
+ {
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+ Word32 L_product;
+ Word32 L_sum;
+ Word32 product32;
+
+ OSCL_UNUSED_ARG(pOverflow);
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+ /* L_product = L_mult (L_var1_hi, L_var2_hi, pOverflow);*/
+
+ __asm {SMULBB L_product, L_var1_hi, L_var2_hi}
+ __asm {QDADD L_product, 0, L_product}
+ __asm {SMULBB product32, L_var1_hi, L_var2_lo}
+ product32 >>= 15;
+ __asm {QDADD L_sum, L_product, product32}
+ L_product = L_sum;
+ __asm {SMULBB product32, L_var1_lo, L_var2_hi}
+ product32 >>= 15;
+ __asm {QDADD L_sum, L_product, product32}
+ return (L_sum);
+ }
+
+#elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/
+
+ static inline Word32 Mpy_32(Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 L_var2_hi,
+ Word16 L_var2_lo,
+ Flag *pOverflow)
+ {
+ register Word32 product32;
+ register Word32 L_sum;
+ register Word32 L_product, result;
+ register Word32 ra = L_var1_hi;
+ register Word32 rb = L_var1_lo;
+ register Word32 rc = L_var2_hi;
+ register Word32 rd = L_var2_lo;
+
+
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(L_product)
+ : "r"(ra), "r"(rc)
+ );
+ asm volatile("mov %0, #0"
+ : "=r"(result)
+ );
+
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(L_sum)
+ : "r"(result), "r"(L_product)
+ );
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(product32)
+ : "r"(ra), "r"(rd)
+ );
+
+ asm volatile("mov %0, %1, ASR #15"
+ : "=r"(ra)
+ : "r"(product32)
+ );
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(L_product)
+ : "r"(L_sum), "r"(ra)
+ );
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(product32)
+ : "r"(rb), "r"(rc)
+ );
+
+ asm volatile("mov %0, %1, ASR #15"
+ : "=r"(rb)
+ : "r"(product32)
+ );
+
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(L_sum)
+ : "r"(L_product), "r"(rb)
+ );
+
+ return (L_sum);
+ }
+
+#else /* C_EQUIVALENT */
+
+ __inline Word32 Mpy_32(Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 L_var2_hi,
+ Word16 L_var2_lo,
+ Flag *pOverflow)
+ {
+ Word32 L_product;
+ Word32 L_sum;
+ Word32 product32;
+
+ OSCL_UNUSED_ARG(pOverflow);
+ L_product = (Word32) L_var1_hi * L_var2_hi;
+
+ if (L_product != (Word32) 0x40000000L)
+ {
+ L_product <<= 1;
+ }
+ else
+ {
+ L_product = MAX_32;
+ }
+
+ /* result = mult (L_var1_hi, L_var2_lo, pOverflow); */
+ product32 = ((Word32) L_var1_hi * L_var2_lo) >> 15;
+
+ /* L_product = L_mac (L_product, result, 1, pOverflow); */
+ L_sum = L_product + (product32 << 1);
+
+ if ((L_product ^ product32) > 0)
+ {
+ if ((L_sum ^ L_product) < 0)
+ {
+ L_sum = (L_product < 0) ? MIN_32 : MAX_32;
+ }
+ }
+
+ L_product = L_sum;
+
+ /* result = mult (L_var1_lo, L_var2_hi, pOverflow); */
+ product32 = ((Word32) L_var1_lo * L_var2_hi) >> 15;
+
+ /* L_product = L_mac (L_product, result, 1, pOverflow); */
+ L_sum = L_product + (product32 << 1);
+
+ if ((L_product ^ product32) > 0)
+ {
+ if ((L_sum ^ L_product) < 0)
+ {
+ L_sum = (L_product < 0) ? MIN_32 : MAX_32;
+ }
+ }
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+ return (L_sum);
+ }
+
+#endif
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _MPY_32_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: mpy_32_16.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the Mpy_32_16 function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef MPY_32_16_H
+#define MPY_32_16_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#if defined(PV_ARM_V5) /* Instructions for ARM Assembly on ADS*/
+
+ __inline Word32 Mpy_32_16(Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 var2,
+ Flag *pOverflow)
+ {
+
+ Word32 L_product;
+ Word32 L_sum;
+ Word32 result;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ __asm {SMULBB L_product, L_var1_hi, var2}
+ __asm {QDADD L_product, 0, L_product}
+ __asm {SMULBB result, L_var1_lo, var2}
+ result >>= 15;
+ __asm {QDADD L_sum, L_product, result}
+ return (L_sum);
+ }
+
+#elif defined(PV_ARM_GCC_V5) /* Instructions for ARM-linux cross-compiler*/
+
+ static inline Word32 Mpy_32_16(Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 var2,
+ Flag *pOverflow)
+ {
+
+ register Word32 ra = L_var1_hi;
+ register Word32 rb = L_var1_lo;
+ register Word32 rc = var2;
+ Word32 result, L_product;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(L_product)
+ : "r"(ra), "r"(rc)
+ );
+ asm volatile("mov %0, #0"
+ : "=r"(result)
+ );
+
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(L_product)
+ : "r"(result), "r"(L_product)
+ );
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(result)
+ : "r"(rb), "r"(rc)
+ );
+
+ asm volatile("mov %0, %1, ASR #15"
+ : "=r"(ra)
+ : "r"(result)
+ );
+ asm volatile("qdadd %0, %1, %2"
+ : "=r"(result)
+ : "r"(L_product), "r"(ra)
+ );
+
+ return (result);
+ }
+
+#else /* C_EQUIVALENT */
+ static inline Word32 Mpy_32_16(Word16 L_var1_hi,
+ Word16 L_var1_lo,
+ Word16 var2,
+ Flag *pOverflow)
+ {
+
+ Word32 L_product;
+ Word32 L_sum;
+ Word32 result;
+ L_product = (Word32) L_var1_hi * var2;
+
+ if (L_product != (Word32) 0x40000000L)
+ {
+ L_product <<= 1;
+ }
+ else
+ {
+ *pOverflow = 1;
+ L_product = MAX_32;
+ }
+
+ result = ((Word32)L_var1_lo * var2) >> 15;
+
+ L_sum = L_product + (result << 1);
+
+ if ((L_product ^ result) > 0)
+ {
+ if ((L_sum ^ L_product) < 0)
+ {
+ L_sum = (L_product < 0) ? MIN_32 : MAX_32;
+ *pOverflow = 1;
+ }
+ }
+ return (L_sum);
+
+ }
+
+#endif
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _MPY_32_16_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: mult.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the mult function.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef MULT_H
+#define MULT_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#if defined(PV_ARM_V5)
+
+ __inline Word16 mult(Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ Word32 product;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ __asm
+ {
+ SMULBB product, var1, var2
+ MOV product, product, ASR #15
+ CMP product, 0x7FFF
+ MOVGE product, 0x7FFF
+ }
+
+ return ((Word16) product);
+ }
+
+#elif defined(PV_ARM_GCC_V5)
+
+ __inline Word16 mult(Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ register Word32 ra = var1;
+ register Word32 rb = var2;
+ Word32 product;
+ Word32 temp = 0x7FFF;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ asm volatile("smulbb %0, %1, %2"
+ : "=r"(product)
+ : "r"(ra), "r"(rb)
+ );
+ asm volatile("mov %0, %1, ASR #15"
+ : "=r"(product)
+ : "r"(product)
+ );
+ asm volatile("cmp %0, %1"
+ : "=r"(product)
+ : "r"(temp)
+ );
+ asm volatile("movge %0, %1"
+ : "=r"(product)
+ : "r"(temp)
+ );
+
+ return ((Word16) product);
+ }
+
+#else /* C EQUIVALENT */
+
+ static inline Word16 mult(Word16 var1, Word16 var2, Flag *pOverflow)
+ {
+ register Word32 product;
+
+ product = ((Word32) var1 * var2) >> 15;
+
+ /* Saturate result (if necessary). */
+ /* var1 * var2 >0x00007fff is the only case */
+ /* that saturation occurs. */
+
+ if (product > 0x00007fffL)
+ {
+ *pOverflow = 1;
+ product = (Word32) MAX_16;
+ }
+
+
+ /* Return the product as a 16 bit value by type casting Word32 to Word16 */
+
+ return ((Word16) product);
+ }
+
+#endif
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _MULT_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: mult_r.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the mult_r function.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef MULT_R__H
+#define MULT_R__H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF Word16 mult_r(Word16 var1, Word16 var2, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _MULT_R_H_ */
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/* $Id $ */
+
+void proc_head(char *mes);
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*****************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+**************************************************************************/
+/*
+ Filename: negate.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the negate function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef NEGATE_H
+#define NEGATE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 negate(register Word16 var1);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: norm_l.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the norm_l function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef NORM_L_H
+#define NORM_L_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#if !( defined(PV_ARM_V5) || defined(PV_ARM_GCC_V5) )
+
+ /* C EQUIVALENT */
+ OSCL_IMPORT_REF Word16 norm_l(Word32 L_var1);
+
+#elif defined(PV_ARM_V5)
+
+ __inline Word16 norm_l(Word32 L_var1)
+ {
+ register Word32 var_out = 0;
+
+ __asm
+ {
+ CMP L_var1, #0
+ EORNE L_var1, L_var1, L_var1, LSL #1
+ CLZNE var_out, L_var1
+ }
+
+ return ((Word16)var_out);
+ }
+
+#elif defined(PV_ARM_GCC_V5)
+
+ static inline Word16 norm_l(Word32 L_var1)
+ {
+ register Word32 var_out = 0;
+ register Word32 ra = L_var1;
+ if (L_var1)
+ {
+ ra ^= (ra << 1);
+ asm volatile(
+ "clz %0, %1"
+ : "=r"(var_out)
+ : "r"(ra)
+ );
+ }
+ return (var_out);
+ }
+
+#endif
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: norm_s.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the norm_s function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef NORM_S_H
+#define NORM_S_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+#if !( defined(PV_ARM_V5) || defined(PV_ARM_GCC_V5) )
+
+ /* C EQUIVALENT */
+
+ OSCL_IMPORT_REF Word16 norm_s(Word16 var1);
+
+#elif defined(PV_ARM_V5)
+
+ __inline Word16 norm_s(Word16 var)
+ {
+ register Word32 var_out = 0;
+ Word32 var1 = var << 16;
+
+ __asm
+ {
+ CMP var1, #0
+ EORNE var1, var1, var1, LSL #1
+ CLZNE var_out, var1
+ }
+
+ return ((Word16)var_out);
+ }
+
+#elif defined(PV_ARM_GCC_V5)
+
+ static inline Word16 norm_s(Word16 var1)
+ {
+ register Word32 var_out = 0;
+ register Word32 ra = var1 << 16;
+ if (ra)
+ {
+ ra ^= (ra << 1);
+ asm volatile(
+ "clz %0, %1"
+ : "=r"(var_out)
+ : "r"(ra)
+ );
+ }
+ return (var_out);
+ }
+
+#endif
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: oper_32b.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file includes all the oper_32b.c functions' header files.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef OPER_32B_H
+#define OPER_32B_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+#include "l_comp.h"
+#include "l_extract.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: p_ol_wgh.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : p_ol_wgh.h
+ Purpose : Compute the open loop pitch lag with weighting.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef P_OL_WGH_H
+#define P_OL_WGH_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "vad.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+ extern const Word16 corrweight[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ /* state variable */
+
+ typedef struct
+ {
+ Word16 old_T0_med;
+ Word16 ada_w;
+ Word16 wght_flg;
+ } pitchOLWghtState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ Word16 p_ol_wgh_init(pitchOLWghtState **st);
+ /* initialize one instance of the pre processing state.
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to p_ol_wgh in each call.
+ returns 0 on success
+ */
+
+ Word16 p_ol_wgh_reset(pitchOLWghtState *st);
+ /* reset of pre processing state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+
+ void p_ol_wgh_exit(pitchOLWghtState **st);
+ /* de-initialize pre processing state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ Word16 Pitch_ol_wgh( /* o : open loop pitch lag */
+ pitchOLWghtState *st, /* i/o : State struct */
+ vadState *vadSt, /* i/o : VAD state struct */
+ Word16 signal[], /* i : signal used to compute the open loop pitch */
+ /* signal[-pit_max] to signal[-1] should be known */
+ Word16 pit_min, /* i : minimum pitch lag */
+ Word16 pit_max, /* i : maximum pitch lag */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 old_lags[], /* i : history with old stored Cl lags */
+ Word16 ol_gain_flg[], /* i : OL gain flag */
+ Word16 idx, /* i : index */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* o : overflow flag */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _P_OL_WGH_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: pow2.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains the prototype declaration for Pow2() function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef POW2_H
+#define POW2_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 pow2_tbl[];
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ OSCL_IMPORT_REF Word32 Pow2(
+ /* (o) : result (range: 0<=val<=0x7fffffff) */
+ Word16 exponent, /* (i) : Integer part. (range: 0<=val<=30) */
+ Word16 fraction, /* (i) : Fractional part. (range: 0.0<=val<1.0) */
+ Flag *pOverflow /* (i/o) : overflow flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _POW2_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: pred_lt.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the pred_lt function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef pred_lt_h
+#define pred_lt_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF void Pred_lt_3or6(
+ Word16 exc[], /* in/out: excitation buffer */
+ Word16 T0, /* input : integer pitch lag */
+ Word16 frac, /* input : fraction of lag */
+ Word16 L_subfr, /* input : subframe size */
+ Word16 flag3, /* input : if set, upsampling rate = 3 (6 otherwise) */
+ Flag *pOverflow /* output: if set, overflow occurred in this function */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PRED_LT_H */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+#ifndef __PVGSMAMR_H
+#define __PVGSMAMR_H
+
+
+// includes
+#include <e32std.h>
+#include <e32base.h>
+
+#include "sp_dec.h"
+#include "pvglobals.h"
+
+
+// PVGsmDecoder AO
+class CPVGsmDecoder : public CBase
+{
+ public:
+ IMPORT_C static CPVGsmDecoder* NewL(void);
+ IMPORT_C ~CPVGsmDecoder();
+ IMPORT_C TInt StartL(void);
+
+ // only port the API's used in PVPlayer 2.0
+ IMPORT_C TInt DecodeFrame(enum Mode mode, unsigned char* compressedBlock, unsigned char* audioBuffer);
+ IMPORT_C TInt InitDecoder(void);
+ IMPORT_C void ExitDecoder(void);
+
+ private:
+ CPVGsmDecoder();
+ void ConstructL(void);
+
+ Speech_Decode_FrameState* decState;
+ enum RXFrameType rx_type;
+ struct globalDataStruct *gds;
+};
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: q_plsf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the q_plsf_3.c and q_plsf_5.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef q_plsf_h
+#define q_plsf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "mode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define MR795_1_SIZE 512
+#define PAST_RQ_INIT_SIZE 8
+
+#define DICO1_SIZE 256
+#define DICO2_SIZE 512
+#define DICO3_SIZE 512
+
+#define DICO1_5_SIZE 128
+#define DICO2_5_SIZE 256
+#define DICO3_5_SIZE 256
+#define DICO4_5_SIZE 256
+#define DICO5_5_SIZE 64
+
+#define MR515_3_SIZE 128
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 past_rq[M]; /* Past quantized prediction error, Q15 */
+
+ } Q_plsfState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ Word16 Q_plsf_init(Q_plsfState **st);
+ /* initialize one instance of the state.
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to Q_plsf_5 / Q_plsf_3 in each call.
+ returns 0 on success
+ */
+
+ Word16 Q_plsf_reset(Q_plsfState *st);
+ /* reset of state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+
+ void Q_plsf_exit(Q_plsfState **st);
+ /* de-initialize state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ OSCL_IMPORT_REF void Q_plsf_3(
+ Q_plsfState *st, /* i/o: state struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 *lsp1, /* i : 1st LSP vector Q15 */
+ Word16 *lsp1_q, /* o : quantized 1st LSP vector Q15 */
+ Word16 *indice, /* o : quantization indices of 3 vectors Q0 */
+ Word16 *pred_init_i,/* o : init index for MA prediction in DTX mode */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ OSCL_IMPORT_REF void Q_plsf_5(
+ Q_plsfState *st,
+ Word16 *lsp1, /* i : 1st LSP vector, Q15 */
+ Word16 *lsp2, /* i : 2nd LSP vector, Q15 */
+ Word16 *lsp1_q, /* o : quantized 1st LSP vector, Q15 */
+ Word16 *lsp2_q, /* o : quantized 2nd LSP vector, Q15 */
+ Word16 *indice, /* o : quantization indices of 5 matrices, Q0 */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ );
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _Q_PLSF_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: q_plsf_3_tbl.h
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+#define MR795_1_SIZE 512
+#define PAST_RQ_INIT_SIZE 8
+
+#define DICO1_SIZE 256
+#define DICO2_SIZE 512
+#define DICO3_SIZE 512
+
+#define MR515_3_SIZE 128
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /* Codebooks of LSF prediction residual */
+ extern const Word16 mean_lsf_3[];
+
+ extern const Word16 pred_fac_3[];
+
+ extern const Word16 dico1_lsf_3[];
+ extern const Word16 dico2_lsf_3[];
+ extern const Word16 dico3_lsf_3[];
+
+ extern const Word16 mr515_3_lsf[];
+ extern const Word16 mr795_1_lsf[];
+
+ extern const Word16 past_rq_init[];
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+}
+#endif
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: q_plsf_5_tbl.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file declares tables defined in q_plsf_5_tbl.c.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef Q_PLSF_5_TBL_H
+#define Q_PLSF_5_TBL_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 mean_lsf_5[];
+ extern const Word16 dico1_lsf_5[];
+ extern const Word16 dico2_lsf_5[];
+ extern const Word16 dico3_lsf_5[];
+ extern const Word16 dico4_lsf_5[];
+ extern const Word16 dico5_lsf_5[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: qgain475_tab.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file declares tables defined in qgain475_tab.c.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef QGAIN475_TAB_H
+#define QGAIN475_TAB_H
+
+#define MR475_VQ_SIZE 256
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 table_gain_MR475[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: qua_gain.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, qua_gain.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef qua_gain_h
+#define qua_gain_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "gc_pred.h"
+#include "mode.h"
+#include "get_const_tbls.h"
+
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define VQ_SIZE_HIGHRATES 128
+#define VQ_SIZE_LOWRATES 64
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ Word16
+ Qua_gain( /* o : index of quantization. */
+ enum Mode mode, /* i : AMR mode */
+ Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 frac_coeff[], /* i : energy coeff. (5), fraction part, Q15 */
+ Word16 exp_coeff[], /* i : energy coeff. (5), exponent part, Q0 */
+ /* (frac_coeff and exp_coeff computed in */
+ /* calc_filt_energies()) */
+ Word16 gp_limit, /* i : pitch gain limit */
+ Word16 *gain_pit, /* o : Pitch gain, Q14 */
+ Word16 *gain_cod, /* o : Code gain, Q1 */
+ Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
+ /* (for MR122 MA predictor update) */
+ Word16 *qua_ener, /* o : quantized energy error, Q10 */
+ /* (for other MA predictor update) */
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of table ptrs */
+ Flag *pOverflow /* o : overflow indicator */
+ );
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* qua_gain_h */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: qua_gain_tbl.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file declares tables defined in qua_gain_tbl.c.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef QUA_GAIN_TBL_H
+#define QUA_GAIN_TBL_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 table_gain_highrates[];
+ extern const Word16 table_gain_lowrates[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: reorder.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the Reorder_lsf() function.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef REORDER_H
+#define REORDER_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF void Reorder_lsf(
+ Word16 *lsf, /* (i/o) : vector of LSFs (range: 0<=val<=0.5) */
+ Word16 min_dist, /* (i) : minimum required distance */
+ Word16 n, /* (i) : LPC order */
+ Flag *pOverflow /* (i/o) : overflow Flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _REORDER_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : residu.h
+* Purpose : Computes the LP residual.
+* Description : The LP residual is computed by filtering the input
+* : speech through the LP inverse filter A(z).
+*
+*
+********************************************************************************
+*/
+#ifndef residu_h
+#define residu_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * DEFINITION OF DATA TYPES
+ ********************************************************************************
+ */
+
+ /*
+ ********************************************************************************
+ * DECLARATION OF PROTOTYPES
+ ********************************************************************************
+ */
+ OSCL_IMPORT_REF void Residu(
+ Word16 a[], /* (i) : prediction coefficients */
+ Word16 x[], /* (i) : speech signal */
+ Word16 y[], /* (o) : residual signal */
+ Word16 lg /* (i) : size of filtering */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: reverse_bits.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the reverse_bits function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef REVERSE_BITS_H
+#define REVERSE_BITS_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "mode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void reverse_bits(enum Mode mode, unsigned char *pCompressedBlock);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: round.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the pv_round function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef ROUND_H
+#define ROUND_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF Word16 pv_round(Word32 L_var1, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ROUND_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : set_zero.h
+* Description : Set vector x[] to zero
+*
+*
+********************************************************************************
+*/
+#ifndef set_zero_h
+#define set_zero_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * DEFINITION OF DATA TYPES
+ ********************************************************************************
+ */
+
+ /*
+ ********************************************************************************
+ * DECLARATION OF PROTOTYPES
+ ********************************************************************************
+ */
+ void Set_zero(
+ Word16 x[], /* (o) : vector to clear */
+ Word16 L /* (i) : length of vector */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: shl.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the shl function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef SHL_H
+#define SHL_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 shl(Word16 var1, Word16 var2, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SHL_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: shr.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the shr function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef SHR_H
+#define SHR_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF Word16 shr(Word16 var1, Word16 var2, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SHR_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: shr_r.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the shr_r function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef SHR_R_H
+#define SHR_R_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF Word16 shr_r(Word16 var1, Word16 var2, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: sqrt_l.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the sqrt_l() function.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef SQRT_L_H
+#define SQRT_L_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 sqrt_l_tbl[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ OSCL_IMPORT_REF Word32 sqrt_l_exp( /* o : output value, Q31 */
+ Word32 L_x, /* i : input value, Q31 */
+ Word16 *pExp, /* o : right shift to be applied to result, Q1 */
+ Flag *pOverflow /* i : pointer to overflow flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SQRT_L__H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: sub.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the sub function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef SUB_H
+#define SUB_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ OSCL_IMPORT_REF Word16 sub(Word16 var1, Word16 var2, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SUB_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : syn_filt.h
+* Purpose : Perform synthesis filtering through 1/A(z).
+*
+*
+********************************************************************************
+*/
+#ifndef syn_filt_h
+#define syn_filt_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * DEFINITION OF DATA TYPES
+ ********************************************************************************
+ */
+
+ /*
+ ********************************************************************************
+ * DECLARATION OF PROTOTYPES
+ ********************************************************************************
+ */
+ OSCL_IMPORT_REF void Syn_filt(
+ Word16 a[], /* (i) : a[m+1] prediction coefficients (m=10) */
+ Word16 x[], /* (i) : input signal */
+ Word16 y[], /* (o) : output signal */
+ Word16 lg, /* (i) : size of filtering */
+ Word16 mem[], /* (i/o): memory associated with this filtering. */
+ Word16 update /* (i) : 0=no update, 1=update of memory. */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : typedef.c
+* Purpose : Basic types.
+*
+********************************************************************************
+*/
+#ifndef typedef_h
+#define typedef_h "$Id $"
+
+#undef ORIGINAL_TYPEDEF_H /* CHANGE THIS TO #define to get the */
+/* "original" ETSI version of typedef.h */
+/* CHANGE TO #undef for PV version */
+
+#ifdef ORIGINAL_TYPEDEF_H
+/*
+ * this is the original code from the ETSI file typedef.h
+ */
+
+#if defined(__unix__) || defined(__unix)
+typedef signed char Word8;
+typedef short Word16;
+typedef int Word32;
+typedef int Flag;
+
+#else
+#error No System recognized
+#endif
+#else /* not original typedef.h */
+
+/*
+ * use (improved) type definition file typdefs.h
+ */
+#include "gsm_amr_typedefs.h"
+
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+**-------------------------------------------------------------------------**
+** **
+** GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001 **
+** R99 Version 3.2.0 **
+** REL-4 Version 4.0.0 **
+** **
+**-------------------------------------------------------------------------**
+********************************************************************************
+*
+* File : vad.h
+* Purpose : Voice Activity Detection (VAD) for AMR
+*
+********************************************************************************
+*/
+#ifndef vad_h
+#define vad_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+
+#include "vad1.h" /* for VAD option 1 */
+#include "vad2.h" /* for VAD option 2 */
+
+/*
+********************************************************************************
+* LOCAL VARIABLES AND TABLES
+********************************************************************************
+*/
+
+/*
+********************************************************************************
+* DEFINITION OF DATA TYPES
+********************************************************************************
+*/
+
+#ifndef VAD2
+#define vadState vadState1
+#else
+#define vadState vadState2
+#endif
+
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : weight_a.h
+* Purpose : Spectral expansion of LP coefficients. (order==10)
+* Description : a_exp[i] = a[i] * fac[i-1] ,i=1,10
+*
+*
+********************************************************************************
+*/
+#ifndef weight_a_h
+#define weight_a_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * DEFINITION OF DATA TYPES
+ ********************************************************************************
+ */
+
+ /*
+ ********************************************************************************
+ * DECLARATION OF PROTOTYPES
+ ********************************************************************************
+ */
+ OSCL_IMPORT_REF void Weight_Ai(
+ Word16 a[], /* (i) : a[m+1] LPC coefficients (m=10) */
+ const Word16 fac[],/* (i) : Spectral expansion factors. */
+ Word16 a_exp[] /* (o) : Spectral expanded LPC coefficients */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: window_tab.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file declares a tables in window_tab.c used in lpc.c.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef WINDOW_TAB_H
+#define WINDOW_TAB_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 window_200_40[];
+ extern const Word16 window_160_80[];
+ extern const Word16 window_232_8[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: wmf_to_ets.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the wmf_to_ets function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef WMF_TO_ETS_H
+#define WMF_TO_ETS_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "frame_type_3gpp.h"
+#include "typedef.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void wmf_to_ets(enum Frame_Type_3GPP frame_type_3gpp,
+ UWord8 *wmf_input_ptr,
+ Word16 *ets_output_ptr,
+ CommonAmrTbls* common_amr_tbls);
+
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: add.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Summation function with overflow control
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: add
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the add operation resulted in overflow
+
+ Returns:
+ sum = 16-bit limited sum of var1 and var2 (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the addition (var1+var2) with overflow control and
+ saturation; the 16 bit result is set at +32767 when overflow occurs or at
+ -32768 when underflow occurs.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] add.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Word16 add (Word16 var1, Word16 var2)
+{
+ Word16 var_out;
+ Word32 sum;
+
+ sum = (Word32) var1 + var2;
+
+* The reference ETSI code uses a global flag for Overflow inside the function
+* saturate(). In the actual implementation a pointer to Overflow flag is passed in
+* as a parameter to the function
+
+ var_out = saturate (sum);
+#if (WMOPS)
+ multiCounter[currCounter].add++;
+#endif
+ return (var_out);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+OSCL_EXPORT_REF Word16 add_16(Word16 var1, Word16 var2, Flag *pOverflow)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+ Word32 sum;
+ sum = (Word32) var1 + var2;
+
+ /* Saturate result (if necessary). */
+ /* Replaced function call with in-line code */
+ /* to conserve MIPS, i.e., var_out = saturate (sum) */
+
+ if (sum > 0X00007fffL)
+ {
+ *pOverflow = 1;
+ sum = MAX_16;
+ }
+ else if (sum < (Word32) 0xffff8000L)
+ {
+ *pOverflow = 1;
+ sum = MIN_16;
+ }
+
+ /* Return the sum as a 16 bit value by type casting Word32 to Word16 */
+
+ return ((Word16) sum);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: az_lsp.cpp
+ Funtions: Chebps
+ Chebps_Wrapper
+ Az_lsp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ These modules compute the LSPs from the LP coefficients.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "az_lsp.h"
+#include "cnst.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NC M/2 /* M = LPC order, NC = M/2 */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Chebps
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ x = input value (Word16)
+ f = polynomial (Word16)
+ n = polynomial order (Word16)
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the operations in the function resulted in saturation.
+
+ Returns:
+ cheb = Chebyshev polynomial for the input value x.(Word16)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This module evaluates the Chebyshev polynomial series.
+ - The polynomial order is n = m/2 = 5
+ - The polynomial F(z) (F1(z) or F2(z)) is given by
+ F(w) = 2 exp(-j5w) C(x)
+ where
+ C(x) = T_n(x) + f(1)T_n-1(x) + ... +f(n-1)T_1(x) + f(n)/2
+ and T_m(x) = cos(mw) is the mth order Chebyshev
+ polynomial ( x=cos(w) )
+ - C(x) for the input x is returned.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ az_lsp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static Word16 Chebps (Word16 x,
+ Word16 f[], // (n)
+ Word16 n)
+{
+ Word16 i, cheb;
+ Word16 b0_h, b0_l, b1_h, b1_l, b2_h, b2_l;
+ Word32 t0;
+
+// The reference ETSI code uses a global flag for Overflow. However, in the
+// actual implementation a pointer to Overflow flag is passed in as a
+// parameter to the function. This pointer is passed into all the basic math
+// functions invoked
+
+ b2_h = 256; // b2 = 1.0
+ b2_l = 0;
+
+ t0 = L_mult (x, 512); // 2*x
+ t0 = L_mac (t0, f[1], 8192); // + f[1]
+ L_Extract (t0, &b1_h, &b1_l); // b1 = 2*x + f[1]
+
+ for (i = 2; i < n; i++)
+ {
+ t0 = Mpy_32_16 (b1_h, b1_l, x); // t0 = 2.0*x*b1
+ t0 = L_shl (t0, 1);
+ t0 = L_mac (t0, b2_h, (Word16) 0x8000); // t0 = 2.0*x*b1 - b2
+ t0 = L_msu (t0, b2_l, 1);
+ t0 = L_mac (t0, f[i], 8192); // t0 = 2.0*x*b1 - b2 + f[i]
+
+ L_Extract (t0, &b0_h, &b0_l); // b0 = 2.0*x*b1 - b2 + f[i]
+
+ b2_l = b1_l; // b2 = b1;
+ b2_h = b1_h;
+ b1_l = b0_l; // b1 = b0;
+ b1_h = b0_h;
+ }
+
+ t0 = Mpy_32_16 (b1_h, b1_l, x); // t0 = x*b1;
+ t0 = L_mac (t0, b2_h, (Word16) 0x8000); // t0 = x*b1 - b2
+ t0 = L_msu (t0, b2_l, 1);
+ t0 = L_mac (t0, f[i], 4096); // t0 = x*b1 - b2 + f[i]/2
+
+ t0 = L_shl (t0, 6);
+
+ cheb = extract_h (t0);
+
+ return (cheb);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 Chebps(Word16 x,
+ Word16 f[], /* (n) */
+ Word16 n,
+ Flag *pOverflow)
+{
+ Word16 i;
+ Word16 cheb;
+ Word16 b1_h;
+ Word16 b1_l;
+ Word32 t0;
+ Word32 L_temp;
+ Word16 *p_f = &f[1];
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ /* L_temp = 1.0 */
+
+ L_temp = 0x01000000L;
+
+ t0 = ((Word32) x << 10) + ((Word32) * (p_f++) << 14);
+
+ /* b1 = t0 = 2*x + f[1] */
+
+ b1_h = (Word16)(t0 >> 16);
+ b1_l = (Word16)((t0 >> 1) - (b1_h << 15));
+
+
+ for (i = 2; i < n; i++)
+ {
+ /* t0 = 2.0*x*b1 */
+ t0 = ((Word32) b1_h * x);
+ t0 += ((Word32) b1_l * x) >> 15;
+ t0 <<= 2;
+
+ /* t0 = 2.0*x*b1 - b2 */
+ t0 -= L_temp;
+
+ /* t0 = 2.0*x*b1 - b2 + f[i] */
+ t0 += (Word32) * (p_f++) << 14;
+
+ L_temp = ((Word32) b1_h << 16) + ((Word32) b1_l << 1);
+
+ /* b0 = 2.0*x*b1 - b2 + f[i]*/
+ b1_h = (Word16)(t0 >> 16);
+ b1_l = (Word16)((t0 >> 1) - (b1_h << 15));
+
+ }
+
+ /* t0 = x*b1; */
+ t0 = ((Word32) b1_h * x);
+ t0 += ((Word32) b1_l * x) >> 15;
+ t0 <<= 1;
+
+
+ /* t0 = x*b1 - b2 */
+ t0 -= L_temp;
+
+ /* t0 = x*b1 - b2 + f[i]/2 */
+ t0 += (Word32) * (p_f) << 13;
+
+
+ if ((UWord32)(t0 - 0xfe000000L) < (UWord32)0x03ffffffL)
+ {
+ cheb = (Word16)(t0 >> 10);
+ }
+ else
+ {
+ if (t0 > (Word32) 0x01ffffffL)
+ {
+ cheb = MAX_16;
+
+ }
+ else
+ {
+ cheb = MIN_16;
+ }
+ }
+
+ return (cheb);
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Az_lsp
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS FOR Az_lsp
+
+ Inputs:
+ a = predictor coefficients (Word16)
+ lsp = line spectral pairs (Word16)
+ old_lsp = old line spectral pairs (Word16)
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the operations in the function resulted in saturation.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes the LSPs from the LP coefficients.
+
+ The sum and difference filters are computed and divided by 1+z^{-1} and
+ 1-z^{-1}, respectively.
+
+ f1[i] = a[i] + a[11-i] - f1[i-1] ; i=1,...,5
+ f2[i] = a[i] - a[11-i] + f2[i-1] ; i=1,...,5
+
+ The roots of F1(z) and F2(z) are found using Chebyshev polynomial evaluation.
+ The polynomials are evaluated at 60 points regularly spaced in the
+ frequency domain. The sign change interval is subdivided 4 times to better
+ track the root. The LSPs are found in the cosine domain [1,-1].
+
+ If less than 10 roots are found, the LSPs from the past frame are used.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ az_lsp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Az_lsp (
+ Word16 a[], // (i) : predictor coefficients (MP1)
+ Word16 lsp[], // (o) : line spectral pairs (M)
+ Word16 old_lsp[] // (i) : old lsp[] (in case not found 10 roots) (M)
+)
+{
+ Word16 i, j, nf, ip;
+ Word16 xlow, ylow, xhigh, yhigh, xmid, ymid, xint;
+ Word16 x, y, sign, exp;
+ Word16 *coef;
+ Word16 f1[M / 2 + 1], f2[M / 2 + 1];
+ Word32 t0;
+
+ *-------------------------------------------------------------*
+ * find the sum and diff. pol. F1(z) and F2(z) *
+ * F1(z) <--- F1(z)/(1+z**-1) & F2(z) <--- F2(z)/(1-z**-1) *
+ * *
+ * f1[0] = 1.0; *
+ * f2[0] = 1.0; *
+ * *
+ * for (i = 0; i< NC; i++) *
+ * { *
+ * f1[i+1] = a[i+1] + a[M-i] - f1[i] ; *
+ * f2[i+1] = a[i+1] - a[M-i] + f2[i] ; *
+ * } *
+ *-------------------------------------------------------------*
+
+ f1[0] = 1024; // f1[0] = 1.0
+ f2[0] = 1024; // f2[0] = 1.0
+
+// The reference ETSI code uses a global flag for Overflow. However, in the
+// actual implementation a pointer to Overflow flag is passed in as a
+// parameter to the function. This pointer is passed into all the basic math
+// functions invoked
+
+ for (i = 0; i < NC; i++)
+ {
+ t0 = L_mult (a[i + 1], 8192); // x = (a[i+1] + a[M-i]) >> 2
+ t0 = L_mac (t0, a[M - i], 8192);
+ x = extract_h (t0);
+ // f1[i+1] = a[i+1] + a[M-i] - f1[i]
+ f1[i + 1] = sub (x, f1[i]);
+
+ t0 = L_mult (a[i + 1], 8192); // x = (a[i+1] - a[M-i]) >> 2
+ t0 = L_msu (t0, a[M - i], 8192);
+ x = extract_h (t0);
+ // f2[i+1] = a[i+1] - a[M-i] + f2[i]
+ f2[i + 1] = add (x, f2[i]);
+ }
+
+ *-------------------------------------------------------------*
+ * find the LSPs using the Chebychev pol. evaluation *
+ *-------------------------------------------------------------*
+
+ nf = 0; // number of found frequencies
+ ip = 0; // indicator for f1 or f2
+
+ coef = f1;
+
+ xlow = grid[0];
+ ylow = Chebps (xlow, coef, NC);
+
+ j = 0;
+ // while ( (nf < M) && (j < grid_points) )
+ while ((sub (nf, M) < 0) && (sub (j, grid_points) < 0))
+ {
+ j++;
+ xhigh = xlow;
+ yhigh = ylow;
+ xlow = grid[j];
+ ylow = Chebps (xlow, coef, NC);
+
+ if (L_mult (ylow, yhigh) <= (Word32) 0L)
+ {
+
+ // divide 4 times the interval
+
+ for (i = 0; i < 4; i++)
+ {
+ // xmid = (xlow + xhigh)/2
+ xmid = add (shr (xlow, 1), shr (xhigh, 1));
+ ymid = Chebps (xmid, coef, NC);
+
+ if (L_mult (ylow, ymid) <= (Word32) 0L)
+ {
+ yhigh = ymid;
+ xhigh = xmid;
+ }
+ else
+ {
+ ylow = ymid;
+ xlow = xmid;
+ }
+ }
+
+ *-------------------------------------------------------------*
+ * Linear interpolation *
+ * xint = xlow - ylow*(xhigh-xlow)/(yhigh-ylow); *
+ *-------------------------------------------------------------*
+
+ x = sub (xhigh, xlow);
+ y = sub (yhigh, ylow);
+
+ if (y == 0)
+ {
+ xint = xlow;
+ }
+ else
+ {
+ sign = y;
+ y = abs_s (y);
+ exp = norm_s (y);
+ y = shl (y, exp);
+ y = div_s ((Word16) 16383, y);
+ t0 = L_mult (x, y);
+ t0 = L_shr (t0, sub (20, exp));
+ y = extract_l (t0); // y= (xhigh-xlow)/(yhigh-ylow)
+
+ if (sign < 0)
+ y = negate (y);
+
+ t0 = L_mult (ylow, y);
+ t0 = L_shr (t0, 11);
+ xint = sub (xlow, extract_l (t0)); // xint = xlow - ylow*y
+ }
+
+ lsp[nf] = xint;
+ xlow = xint;
+ nf++;
+
+ if (ip == 0)
+ {
+ ip = 1;
+ coef = f2;
+ }
+ else
+ {
+ ip = 0;
+ coef = f1;
+ }
+ ylow = Chebps (xlow, coef, NC);
+
+ }
+ }
+
+ // Check if M roots found
+
+ if (sub (nf, M) < 0)
+ {
+ for (i = 0; i < M; i++)
+ {
+ lsp[i] = old_lsp[i];
+ }
+
+ }
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Az_lsp(
+ Word16 a[], /* (i) : predictor coefficients (MP1) */
+ Word16 lsp[], /* (o) : line spectral pairs (M) */
+ Word16 old_lsp[], /* (i) : old lsp[] (in case not found 10 roots) (M) */
+ Flag *pOverflow /* (i/o): overflow flag */
+)
+{
+ register Word16 i;
+ register Word16 j;
+ register Word16 nf;
+ register Word16 ip;
+ Word16 xlow;
+ Word16 ylow;
+ Word16 xhigh;
+ Word16 yhigh;
+ Word16 xmid;
+ Word16 ymid;
+ Word16 xint;
+ Word16 x;
+ Word16 y;
+ Word16 sign;
+ Word16 exp;
+ Word16 *coef;
+ Word16 f1[NC + 1];
+ Word16 f2[NC + 1];
+ Word32 L_temp1;
+ Word32 L_temp2;
+ Word16 *p_f1 = f1;
+ Word16 *p_f2 = f2;
+
+ /*-------------------------------------------------------------*
+ * find the sum and diff. pol. F1(z) and F2(z) *
+ * F1(z) <--- F1(z)/(1+z**-1) & F2(z) <--- F2(z)/(1-z**-1) *
+ * *
+ * f1[0] = 1.0; *
+ * f2[0] = 1.0; *
+ * *
+ * for (i = 0; i< NC; i++) *
+ * { *
+ * f1[i+1] = a[i+1] + a[M-i] - f1[i] ; *
+ * f2[i+1] = a[i+1] - a[M-i] + f2[i] ; *
+ * } *
+ *-------------------------------------------------------------*/
+
+ *p_f1 = 1024; /* f1[0] = 1.0 */
+ *p_f2 = 1024; /* f2[0] = 1.0 */
+
+ for (i = 0; i < NC; i++)
+ {
+ L_temp1 = (Word32) * (a + i + 1);
+ L_temp2 = (Word32) * (a + M - i);
+ /* x = (a[i+1] + a[M-i]) >> 2 */
+ x = (Word16)((L_temp1 + L_temp2) >> 2);
+ /* y = (a[i+1] - a[M-i]) >> 2 */
+ y = (Word16)((L_temp1 - L_temp2) >> 2);
+ /* f1[i+1] = a[i+1] + a[M-i] - f1[i] */
+ x -= *(p_f1++);
+ *(p_f1) = x;
+ /* f2[i+1] = a[i+1] - a[M-i] + f2[i] */
+ y += *(p_f2++);
+ *(p_f2) = y;
+ }
+
+ /*-------------------------------------------------------------*
+ * find the LSPs using the Chebychev pol. evaluation *
+ *-------------------------------------------------------------*/
+
+ nf = 0; /* number of found frequencies */
+ ip = 0; /* indicator for f1 or f2 */
+
+ coef = f1;
+
+ xlow = *(grid);
+ ylow = Chebps(xlow, coef, NC, pOverflow);
+
+ j = 0;
+
+ while ((nf < M) && (j < grid_points))
+ {
+ j++;
+ xhigh = xlow;
+ yhigh = ylow;
+ xlow = *(grid + j);
+ ylow = Chebps(xlow, coef, NC, pOverflow);
+
+ if (((Word32)ylow*yhigh) <= 0)
+ {
+ /* divide 4 times the interval */
+ for (i = 4; i != 0; i--)
+ {
+ /* xmid = (xlow + xhigh)/2 */
+ x = xlow >> 1;
+ y = xhigh >> 1;
+ xmid = x + y;
+
+ ymid = Chebps(xmid, coef, NC, pOverflow);
+
+ if (((Word32)ylow*ymid) <= 0)
+ {
+ yhigh = ymid;
+ xhigh = xmid;
+ }
+ else
+ {
+ ylow = ymid;
+ xlow = xmid;
+ }
+ }
+
+ /*-------------------------------------------------------------*
+ * Linear interpolation *
+ * xint = xlow - ylow*(xhigh-xlow)/(yhigh-ylow); *
+ *-------------------------------------------------------------*/
+
+ x = xhigh - xlow;
+ y = yhigh - ylow;
+
+ if (y == 0)
+ {
+ xint = xlow;
+ }
+ else
+ {
+ sign = y;
+ y = abs_s(y);
+ exp = norm_s(y);
+ y <<= exp;
+ y = div_s((Word16) 16383, y);
+
+ y = ((Word32)x * y) >> (19 - exp);
+
+ if (sign < 0)
+ {
+ y = -y;
+ }
+
+ /* xint = xlow - ylow*y */
+ xint = xlow - (((Word32) ylow * y) >> 10);
+ }
+
+ *(lsp + nf) = xint;
+ xlow = xint;
+ nf++;
+
+ if (ip == 0)
+ {
+ ip = 1;
+ coef = f2;
+ }
+ else
+ {
+ ip = 0;
+ coef = f1;
+ }
+
+ ylow = Chebps(xlow, coef, NC, pOverflow);
+
+ }
+ }
+
+ /* Check if M roots found */
+
+ if (nf < M)
+ {
+ for (i = NC; i != 0 ; i--)
+ {
+ *lsp++ = *old_lsp++;
+ *lsp++ = *old_lsp++;
+ }
+ }
+
+}
+
+Word16 Chebps_Wrapper(Word16 x,
+ Word16 f[], /* (n) */
+ Word16 n,
+ Flag *pOverflow)
+{
+ return Chebps(x, f, n, pOverflow);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: bitno_tab.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ None
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ File : bitno.tab
+ Purpose : Tables for bit2prm and prm2bit
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h" /* parameter sizes: MAX_PRM_SIZE */
+#include "mode.h" /* N_MODES */
+#include "bitno_tab.h"
+
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+ /* number of parameters per modes (values must be <= MAX_PRM_SIZE!) */
+ const Word16 prmno[N_MODES] =
+ {
+ PRMNO_MR475,
+ PRMNO_MR515,
+ PRMNO_MR59,
+ PRMNO_MR67,
+ PRMNO_MR74,
+ PRMNO_MR795,
+ PRMNO_MR102,
+ PRMNO_MR122,
+ PRMNO_MRDTX
+ };
+
+ /* number of parameters to first subframe per modes */
+ const Word16 prmnofsf[N_MODES - 1] =
+ {
+ PRMNOFSF_MR475,
+ PRMNOFSF_MR515,
+ PRMNOFSF_MR59,
+ PRMNOFSF_MR67,
+ PRMNOFSF_MR74,
+ PRMNOFSF_MR795,
+ PRMNOFSF_MR102,
+ PRMNOFSF_MR122
+ };
+
+ /* parameter sizes (# of bits), one table per mode */
+ const Word16 bitno_MR475[PRMNO_MR475] =
+ {
+ 8, 8, 7, /* LSP VQ */
+ 8, 7, 2, 8, /* first subframe */
+ 4, 7, 2, /* second subframe */
+ 4, 7, 2, 8, /* third subframe */
+ 4, 7, 2, /* fourth subframe */
+ };
+
+ const Word16 bitno_MR515[PRMNO_MR515] =
+ {
+ 8, 8, 7, /* LSP VQ */
+ 8, 7, 2, 6, /* first subframe */
+ 4, 7, 2, 6, /* second subframe */
+ 4, 7, 2, 6, /* third subframe */
+ 4, 7, 2, 6, /* fourth subframe */
+ };
+
+ const Word16 bitno_MR59[PRMNO_MR59] =
+ {
+ 8, 9, 9, /* LSP VQ */
+ 8, 9, 2, 6, /* first subframe */
+ 4, 9, 2, 6, /* second subframe */
+ 8, 9, 2, 6, /* third subframe */
+ 4, 9, 2, 6, /* fourth subframe */
+ };
+
+ const Word16 bitno_MR67[PRMNO_MR67] =
+ {
+ 8, 9, 9, /* LSP VQ */
+ 8, 11, 3, 7, /* first subframe */
+ 4, 11, 3, 7, /* second subframe */
+ 8, 11, 3, 7, /* third subframe */
+ 4, 11, 3, 7, /* fourth subframe */
+ };
+
+ const Word16 bitno_MR74[PRMNO_MR74] =
+ {
+ 8, 9, 9, /* LSP VQ */
+ 8, 13, 4, 7, /* first subframe */
+ 5, 13, 4, 7, /* second subframe */
+ 8, 13, 4, 7, /* third subframe */
+ 5, 13, 4, 7, /* fourth subframe */
+ };
+
+ const Word16 bitno_MR795[PRMNO_MR795] =
+ {
+ 9, 9, 9, /* LSP VQ */
+ 8, 13, 4, 4, 5, /* first subframe */
+ 6, 13, 4, 4, 5, /* second subframe */
+ 8, 13, 4, 4, 5, /* third subframe */
+ 6, 13, 4, 4, 5, /* fourth subframe */
+ };
+
+ const Word16 bitno_MR102[PRMNO_MR102] =
+ {
+ 8, 9, 9, /* LSP VQ */
+ 8, 1, 1, 1, 1, 10, 10, 7, 7, /* first subframe */
+ 5, 1, 1, 1, 1, 10, 10, 7, 7, /* second subframe */
+ 8, 1, 1, 1, 1, 10, 10, 7, 7, /* third subframe */
+ 5, 1, 1, 1, 1, 10, 10, 7, 7, /* fourth subframe */
+ };
+
+ const Word16 bitno_MR122[PRMNO_MR122] =
+ {
+ 7, 8, 9, 8, 6, /* LSP VQ */
+ 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 5, /* first subframe */
+ 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 5, /* second subframe */
+ 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 5, /* third subframe */
+ 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 5 /* fourth subframe */
+ };
+
+ const Word16 bitno_MRDTX[PRMNO_MRDTX] =
+ {
+ 3,
+ 8, 9, 9,
+ 6
+ };
+
+ /* overall table with all parameter sizes for all modes */
+ const Word16 * const bitno[N_MODES] =
+ {
+ bitno_MR475,
+ bitno_MR515,
+ bitno_MR59,
+ bitno_MR67,
+ bitno_MR74,
+ bitno_MR795,
+ bitno_MR102,
+ bitno_MR122,
+ bitno_MRDTX
+ };
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; Define all local variables
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Function body here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Return nothing or data or data pointer
+----------------------------------------------------------------------------*/
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: bitreorder_tab.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ None
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function contains tables needed to reformat the encoded speech bits
+ into IF2, WMF, and ETS.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ AMR Speech Codec Frame Structure,
+ 3GPP TS 26.101 version 4.1.0 Release 4, June 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "bitreorder_tab.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+#define NUM_MODES 16
+#define NUMBIT_MR475 95
+#define NUMBIT_MR515 103
+#define NUMBIT_MR59 118
+#define NUMBIT_MR67 134
+#define NUMBIT_MR74 148
+#define NUMBIT_MR795 159
+#define NUMBIT_MR102 204
+#define NUMBIT_MR122 244
+#define NUMBIT_AMR_SID 39
+#define NUMBIT_GSMEFR_SID 43
+#define NUMBIT_TDMAEFR_SID 38
+#define NUMBIT_PDCEFR_SID 37
+#define NUMBIT_UNUSED1 0
+#define NUMBIT_UNUSED2 0
+#define NUMBIT_UNUSED3 0
+#define NUMBIT_NO_DATA 0
+
+#define MAX_NUM_BITS 244
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+ /* number of parameters per modes (values must be <= MAX_PRM_SIZE!) */
+ const Word16 numOfBits[NUM_MODES] =
+ {
+ NUMBIT_MR475,
+ NUMBIT_MR515,
+ NUMBIT_MR59,
+ NUMBIT_MR67,
+ NUMBIT_MR74,
+ NUMBIT_MR795,
+ NUMBIT_MR102,
+ NUMBIT_MR122,
+ NUMBIT_AMR_SID,
+ NUMBIT_GSMEFR_SID,
+ NUMBIT_TDMAEFR_SID,
+ NUMBIT_PDCEFR_SID,
+ NUMBIT_UNUSED1,
+ NUMBIT_UNUSED2,
+ NUMBIT_UNUSED3,
+ NUMBIT_NO_DATA
+ };
+
+ const Word16 reorderBits_MR475[NUMBIT_MR475] =
+ {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+ 10, 11, 12, 13, 14, 15, 23, 24, 25, 26,
+ 27, 28, 48, 49, 61, 62, 82, 83, 47, 46,
+ 45, 44, 81, 80, 79, 78, 17, 18, 20, 22,
+ 77, 76, 75, 74, 29, 30, 43, 42, 41, 40,
+ 38, 39, 16, 19, 21, 50, 51, 59, 60, 63,
+ 64, 72, 73, 84, 85, 93, 94, 32, 33, 35,
+ 36, 53, 54, 56, 57, 66, 67, 69, 70, 87,
+ 88, 90, 91, 34, 55, 68, 89, 37, 58, 71,
+ 92, 31, 52, 65, 86
+ };
+
+ const Word16 reorderBits_MR515[NUMBIT_MR515] =
+ {
+ 7, 6, 5, 4, 3, 2, 1, 0, 15, 14,
+ 13, 12, 11, 10, 9, 8, 23, 24, 25, 26,
+ 27, 46, 65, 84, 45, 44, 43, 64, 63, 62,
+ 83, 82, 81, 102, 101, 100, 42, 61, 80, 99,
+ 28, 47, 66, 85, 18, 41, 60, 79, 98, 29,
+ 48, 67, 17, 20, 22, 40, 59, 78, 97, 21,
+ 30, 49, 68, 86, 19, 16, 87, 39, 38, 58,
+ 57, 77, 35, 54, 73, 92, 76, 96, 95, 36,
+ 55, 74, 93, 32, 51, 33, 52, 70, 71, 89,
+ 90, 31, 50, 69, 88, 37, 56, 75, 94, 34,
+ 53, 72, 91
+ };
+
+ const Word16 reorderBits_MR59[NUMBIT_MR59] =
+ {
+ 0, 1, 4, 5, 3, 6, 7, 2, 13, 15,
+ 8, 9, 11, 12, 14, 10, 16, 28, 74, 29,
+ 75, 27, 73, 26, 72, 30, 76, 51, 97, 50,
+ 71, 96, 117, 31, 77, 52, 98, 49, 70, 95,
+ 116, 53, 99, 32, 78, 33, 79, 48, 69, 94,
+ 115, 47, 68, 93, 114, 46, 67, 92, 113, 19,
+ 21, 23, 22, 18, 17, 20, 24, 111, 43, 89,
+ 110, 64, 65, 44, 90, 25, 45, 66, 91, 112,
+ 54, 100, 40, 61, 86, 107, 39, 60, 85, 106,
+ 36, 57, 82, 103, 35, 56, 81, 102, 34, 55,
+ 80, 101, 42, 63, 88, 109, 41, 62, 87, 108,
+ 38, 59, 84, 105, 37, 58, 83, 104
+ };
+
+ const Word16 reorderBits_MR67[NUMBIT_MR67] =
+ {
+ 0, 1, 4, 3, 5, 6, 13, 7, 2, 8,
+ 9, 11, 15, 12, 14, 10, 28, 82, 29, 83,
+ 27, 81, 26, 80, 30, 84, 16, 55, 109, 56,
+ 110, 31, 85, 57, 111, 48, 73, 102, 127, 32,
+ 86, 51, 76, 105, 130, 52, 77, 106, 131, 58,
+ 112, 33, 87, 19, 23, 53, 78, 107, 132, 21,
+ 22, 18, 17, 20, 24, 25, 50, 75, 104, 129,
+ 47, 72, 101, 126, 54, 79, 108, 133, 46, 71,
+ 100, 125, 128, 103, 74, 49, 45, 70, 99, 124,
+ 42, 67, 96, 121, 39, 64, 93, 118, 38, 63,
+ 92, 117, 35, 60, 89, 114, 34, 59, 88, 113,
+ 44, 69, 98, 123, 43, 68, 97, 122, 41, 66,
+ 95, 120, 40, 65, 94, 119, 37, 62, 91, 116,
+ 36, 61, 90, 115
+ };
+
+ const Word16 reorderBits_MR74[NUMBIT_MR74] =
+ {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+ 10, 11, 12, 13, 14, 15, 16, 26, 87, 27,
+ 88, 28, 89, 29, 90, 30, 91, 51, 80, 112,
+ 141, 52, 81, 113, 142, 54, 83, 115, 144, 55,
+ 84, 116, 145, 58, 119, 59, 120, 21, 22, 23,
+ 17, 18, 19, 31, 60, 92, 121, 56, 85, 117,
+ 146, 20, 24, 25, 50, 79, 111, 140, 57, 86,
+ 118, 147, 49, 78, 110, 139, 48, 77, 53, 82,
+ 114, 143, 109, 138, 47, 76, 108, 137, 32, 33,
+ 61, 62, 93, 94, 122, 123, 41, 42, 43, 44,
+ 45, 46, 70, 71, 72, 73, 74, 75, 102, 103,
+ 104, 105, 106, 107, 131, 132, 133, 134, 135, 136,
+ 34, 63, 95, 124, 35, 64, 96, 125, 36, 65,
+ 97, 126, 37, 66, 98, 127, 38, 67, 99, 128,
+ 39, 68, 100, 129, 40, 69, 101, 130
+ };
+
+ const Word16 reorderBits_MR795[NUMBIT_MR795] =
+ {
+ 8, 7, 6, 5, 4, 3, 2, 14, 16, 9,
+ 10, 12, 13, 15, 11, 17, 20, 22, 24, 23,
+ 19, 18, 21, 56, 88, 122, 154, 57, 89, 123,
+ 155, 58, 90, 124, 156, 52, 84, 118, 150, 53,
+ 85, 119, 151, 27, 93, 28, 94, 29, 95, 30,
+ 96, 31, 97, 61, 127, 62, 128, 63, 129, 59,
+ 91, 125, 157, 32, 98, 64, 130, 1, 0, 25,
+ 26, 33, 99, 34, 100, 65, 131, 66, 132, 54,
+ 86, 120, 152, 60, 92, 126, 158, 55, 87, 121,
+ 153, 117, 116, 115, 46, 78, 112, 144, 43, 75,
+ 109, 141, 40, 72, 106, 138, 36, 68, 102, 134,
+ 114, 149, 148, 147, 146, 83, 82, 81, 80, 51,
+ 50, 49, 48, 47, 45, 44, 42, 39, 35, 79,
+ 77, 76, 74, 71, 67, 113, 111, 110, 108, 105,
+ 101, 145, 143, 142, 140, 137, 133, 41, 73, 107,
+ 139, 37, 69, 103, 135, 38, 70, 104, 136
+ };
+
+ const Word16 reorderBits_MR102[NUMBIT_MR102] =
+ {
+ 7, 6, 5, 4, 3, 2, 1, 0, 16, 15,
+ 14, 13, 12, 11, 10, 9, 8, 26, 27, 28,
+ 29, 30, 31, 115, 116, 117, 118, 119, 120, 72,
+ 73, 161, 162, 65, 68, 69, 108, 111, 112, 154,
+ 157, 158, 197, 200, 201, 32, 33, 121, 122, 74,
+ 75, 163, 164, 66, 109, 155, 198, 19, 23, 21,
+ 22, 18, 17, 20, 24, 25, 37, 36, 35, 34,
+ 80, 79, 78, 77, 126, 125, 124, 123, 169, 168,
+ 167, 166, 70, 67, 71, 113, 110, 114, 159, 156,
+ 160, 202, 199, 203, 76, 165, 81, 82, 92, 91,
+ 93, 83, 95, 85, 84, 94, 101, 102, 96, 104,
+ 86, 103, 87, 97, 127, 128, 138, 137, 139, 129,
+ 141, 131, 130, 140, 147, 148, 142, 150, 132, 149,
+ 133, 143, 170, 171, 181, 180, 182, 172, 184, 174,
+ 173, 183, 190, 191, 185, 193, 175, 192, 176, 186,
+ 38, 39, 49, 48, 50, 40, 52, 42, 41, 51,
+ 58, 59, 53, 61, 43, 60, 44, 54, 194, 179,
+ 189, 196, 177, 195, 178, 187, 188, 151, 136, 146,
+ 153, 134, 152, 135, 144, 145, 105, 90, 100, 107,
+ 88, 106, 89, 98, 99, 62, 47, 57, 64, 45,
+ 63, 46, 55, 56
+ };
+
+ const Word16 reorderBits_MR122[NUMBIT_MR122] =
+ {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+ 10, 11, 12, 13, 14, 23, 15, 16, 17, 18,
+ 19, 20, 21, 22, 24, 25, 26, 27, 28, 38,
+ 141, 39, 142, 40, 143, 41, 144, 42, 145, 43,
+ 146, 44, 147, 45, 148, 46, 149, 47, 97, 150,
+ 200, 48, 98, 151, 201, 49, 99, 152, 202, 86,
+ 136, 189, 239, 87, 137, 190, 240, 88, 138, 191,
+ 241, 91, 194, 92, 195, 93, 196, 94, 197, 95,
+ 198, 29, 30, 31, 32, 33, 34, 35, 50, 100,
+ 153, 203, 89, 139, 192, 242, 51, 101, 154, 204,
+ 55, 105, 158, 208, 90, 140, 193, 243, 59, 109,
+ 162, 212, 63, 113, 166, 216, 67, 117, 170, 220,
+ 36, 37, 54, 53, 52, 58, 57, 56, 62, 61,
+ 60, 66, 65, 64, 70, 69, 68, 104, 103, 102,
+ 108, 107, 106, 112, 111, 110, 116, 115, 114, 120,
+ 119, 118, 157, 156, 155, 161, 160, 159, 165, 164,
+ 163, 169, 168, 167, 173, 172, 171, 207, 206, 205,
+ 211, 210, 209, 215, 214, 213, 219, 218, 217, 223,
+ 222, 221, 73, 72, 71, 76, 75, 74, 79, 78,
+ 77, 82, 81, 80, 85, 84, 83, 123, 122, 121,
+ 126, 125, 124, 129, 128, 127, 132, 131, 130, 135,
+ 134, 133, 176, 175, 174, 179, 178, 177, 182, 181,
+ 180, 185, 184, 183, 188, 187, 186, 226, 225, 224,
+ 229, 228, 227, 232, 231, 230, 235, 234, 233, 238,
+ 237, 236, 96, 199
+ };
+
+ /* overall table with all parameter sizes for all modes */
+ const Word16 * const reorderBits[NUM_MODES-1] =
+ {
+ reorderBits_MR475,
+ reorderBits_MR515,
+ reorderBits_MR59,
+ reorderBits_MR67,
+ reorderBits_MR74,
+ reorderBits_MR795,
+ reorderBits_MR102,
+ reorderBits_MR122
+ };
+
+ /* Number of Frames (16-bit segments sent for each mode */
+ const Word16 numCompressedBytes[16] =
+ {
+ 13, /*4.75*/
+ 14, /*5.15*/
+ 16, /*5.90*/
+ 18, /*6.70*/
+ 19, /*7.40*/
+ 21, /*7.95*/
+ 26, /*10.2*/
+ 31, /*12.2*/
+ 6, /*GsmAmr comfort noise*/
+ 6, /*Gsm-Efr comfort noise*/
+ 6, /*IS-641 comfort noise*/
+ 6, /*Pdc-Efr comfort noise*/
+ 0, /*future use*/
+ 0, /*future use*/
+ 0, /*future use*/
+ 1 /*No transmission*/
+ };
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; Define all local variables
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Function body here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Return nothing or data or data pointer
+----------------------------------------------------------------------------*/
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: bits2prm.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "bits2prm.h"
+#include "typedef.h"
+#include "mode.h"
+#include "bitno_tab.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Bin2int
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ no_of_bits = number of bits associated with value
+ bitstream = pointer to buffer where bits are read
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : Bin2int
+ Purpose : Read "no_of_bits" bits from the array bitstream[]
+ and convert to integer.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ bits2prm.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static Word16 Bin2int ( // Reconstructed parameter
+ Word16 no_of_bits, // input : number of bits associated with value
+ Word16 *bitstream // output: address where bits are written
+)
+{
+ Word16 value, i, bit;
+
+ value = 0;
+ for (i = 0; i < no_of_bits; i++)
+ {
+ value = shl (value, 1);
+ bit = *bitstream++;
+ if (sub (bit, BIT_1) == 0)
+ value = add (value, 1);
+ }
+ return (value);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+static Word16 Bin2int( /* Reconstructed parameter */
+ Word16 no_of_bits, /* input : number of bits associated with value */
+ Word16 *bitstream /* input: address where bits are read from */
+)
+{
+ Word16 value;
+ Word16 i;
+ Word16 single_bit;
+
+ value = 0;
+ for (i = 0; i < no_of_bits; i++)
+ {
+ value <<= 1;
+ single_bit = *(bitstream++);
+ value |= single_bit;
+ }
+ return (value);
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: bits2prm
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ mode = AMR mode of type enum Mode
+ bits[] = pointer to serial bits of type Word16
+ prm[] = pointer to analysis parameters of type Word16
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : Bits2prm
+ Purpose : Retrieves the vector of encoder parameters from
+ the received serial bits in a frame.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ bits2prm.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Bits2prm (
+ enum Mode mode, // i : AMR mode
+ Word16 bits[], // i : serial bits (size <= MAX_SERIAL_SIZE)
+ Word16 prm[] // o : analysis parameters (size <= MAX_PRM_SIZE)
+)
+{
+ Word16 i;
+
+ for (i = 0; i < prmno[mode]; i++)
+ {
+ prm[i] = Bin2int (bitno[mode][i], bits);
+ bits += bitno[mode][i];
+ add(0,0); // account for above pointer update
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+OSCL_EXPORT_REF void Bits2prm(
+ enum Mode mode, /* i : AMR mode */
+ Word16 bits[], /* i : serial bits (size <= MAX_SERIAL_SIZE) */
+ Word16 prm[] /* o : analysis parameters (size <= MAX_PRM_SIZE) */
+)
+{
+ Word16 i;
+
+ for (i = 0; i < prmno[mode]; i++)
+ {
+ prm[i] = Bin2int(bitno[mode][i], bits);
+ bits += bitno[mode][i];
+ }
+
+ return;
+}
+
+
+
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: bytesused.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ None
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function creates a table called BytesUsed that holds the value that
+ describes the number of bytes required to hold one frame worth of data in
+ the WMF (non-IF2) frame format. Each table entry is the sum of the frame
+ type byte and the number of bytes used up by the core speech data for each
+ 3GPP frame type.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] "AMR Speech Codec Frame Structure", 3GPP TS 26.101 version 4.1.0
+ Release 4, June 2001, page 13.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+ const short BytesUsed[16] =
+ {
+ 13, /* 4.75 */
+ 14, /* 5.15 */
+ 16, /* 5.90 */
+ 18, /* 6.70 */
+ 20, /* 7.40 */
+ 21, /* 7.95 */
+ 27, /* 10.2 */
+ 32, /* 12.2 */
+ 6, /* GsmAmr comfort noise */
+ 7, /* Gsm-Efr comfort noise */
+ 6, /* IS-641 comfort noise */
+ 6, /* Pdc-Efr comfort noise */
+ 0, /* future use */
+ 0, /* future use */
+ 0, /* future use */
+ 1 /* No transmission */
+ };
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; Define all local variables
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Function body here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Return nothing or data or data pointer
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: c2_9pf_tab.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the declaration for startPos[] used by the functions
+ c2_9pf.c and d2_9pf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+
+ extern const Word16 startPos[];
+ const Word16 startPos[2*4*2] =
+ {
+ 0, 2, 0, 3,
+ 0, 2, 0, 3,
+ 1, 3, 2, 4,
+ 1, 4, 1, 4
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c2_9pf.c UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+* File : copy.h
+*
+********************************************************************************
+*/
+
+/*
+********************************************************************************
+* MODULE INCLUDE FILE AND VERSION ID
+********************************************************************************
+*/
+#include "copy.h"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+#include "basic_op.h"
+#include "oscl_mem.h"
+
+/*
+********************************************************************************
+* PUBLIC PROGRAM CODE
+********************************************************************************
+*/
+/*************************************************************************
+ *
+ * FUNCTION: Copy
+ *
+ * PURPOSE: Copy vector x[] to y[]
+ *
+ *
+ *************************************************************************/
+/*
+**************************************************************************
+*
+* Function : Copy
+* Purpose : Copy vector x[] to y[]
+*
+**************************************************************************
+*/
+void Copy(
+ const Word16 x[], /* i : input vector (L) */
+ Word16 y[], /* o : output vector (L) */
+ Word16 L /* i : vector length */
+)
+{
+ oscl_memmove(y, x, L*sizeof(*x));
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: div_32.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: div_32
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_num = 32 bit signed integer (Word32) whose value falls in the
+ range : 0x0000 0000 < L_num < L_denom
+ L_denom_hi = 16 bit positive normalized integer whose value falls in
+ the range : 0x4000 < hi < 0x7fff
+ L_denom_lo = 16 bit positive integer whose value falls in the range :
+ 0 < lo < 0x7fff
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit divide operation resulted in overflow
+
+ Returns:
+ result = 32-bit quotient of of the division of two 32 bit integers
+ L_num / L_denom (Word32)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function is a fractional integer division of two 32 bit numbers, the
+ numerator L_num and the denominator L_denom. The denominator is formed by
+ combining denom_hi and denom_lo. Note that denom_hi is a normalized numbers.
+ The numerator and denominator must be positive and the numerator must be
+ less than the denominator.
+
+ The division is done as follows:
+ 1. Find 1/L_denom by first approximating: approx = 1 / denom_hi.
+ 2. 1/L_denom = approx * (2.0 - L_denom * approx ).
+ 3. result = L_num * (1/L_denom).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] div_32() function in oper_32b.c, UMTS GSM AMR speech codec, R99 -
+ Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word32 Div_32(Word32 L_num,
+ Word16 L_denom_hi,
+ Word16 L_denom_lo,
+ Flag *pOverflow)
+{
+
+ Word16 approx;
+ Word16 hi;
+ Word16 lo;
+ Word16 n_hi;
+ Word16 n_lo;
+ Word32 result;
+
+ /* First approximation: 1 / L_denom = 1/L_denom_hi */
+
+ approx = div_s((Word16) 0x3fff, L_denom_hi);
+
+ /* 1/L_denom = approx * (2.0 - L_denom * approx) */
+
+ result = Mpy_32_16(L_denom_hi, L_denom_lo, approx, pOverflow);
+ /* result is > 0 , and less than 1.0 */
+ result = 0x7fffffffL - result;
+
+ hi = (Word16)(result >> 16);
+ lo = (result >> 1) - (hi << 15);
+
+ result = Mpy_32_16(hi, lo, approx, pOverflow);
+
+ /* L_num * (1/L_denom) */
+
+ hi = (Word16)(result >> 16);
+ lo = (result >> 1) - (hi << 15);
+
+ n_hi = (Word16)(L_num >> 16);
+ n_lo = (L_num >> 1) - (n_hi << 15);
+
+ result = Mpy_32(n_hi, n_lo, hi, lo, pOverflow);
+ result = L_shl(result, 2, pOverflow);
+
+ return (result);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: div_s.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit signed integer (Word16) whose value falls in
+ the range : 0x0000 <= var1 <= 0x7fff.
+ var2 = 16 bit signed integer (Word16) whose value falls in
+ the range : 0x0000 <= var1 <= 0x7fff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ var_out = quotient of var1 divided by var2 (Word16)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function produces a result which is the fractional integer division of
+ var1 by var2; var1 and var2 must be positive and var2 must be greater or equal
+ to var1; the result is positive (leading bit equal to 0) and truncated to 16
+ bits. If var1 = var2 then div(var1,var2) = 32767.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 div_s (Word16 var1, Word16 var2)
+{
+ Word16 var_out = 0;
+ Word16 iteration;
+ Word32 L_num;
+ Word32 L_denom;
+ Word16 abort_flag = 0;
+
+ if ((var1 > var2) || (var1 < 0))
+ {
+ printf ("Division Error var1=%d var2=%d\n", var1, var2);
+ abort_flag = 1;
+ exit(0);
+ }
+ if ((var1 != 0) && (abort_flag == 0))
+ {
+ if (var1 == var2)
+ {
+ var_out = MAX_16;
+ }
+ else
+ {
+ L_num = (Word32) var1;
+ L_denom = (Word32) var2;
+
+ for (iteration = 15; iteration > 0; iteration--)
+ {
+ var_out <<= 1;
+ L_num <<= 1;
+
+ if (L_num >= L_denom)
+ {
+ L_num -= L_denom;
+ var_out += 1;
+ }
+ }
+ }
+ }
+
+#if (WMOPS)
+ multiCounter[currCounter].div_s++;
+#endif
+ return (var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+OSCL_EXPORT_REF Word16 div_s(register Word16 var1, register Word16 var2)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+ Word16 var_out = 0;
+ register Word16 iteration;
+ Word32 L_num;
+ Word32 L_denom;
+ Word32 L_denom_by_2;
+ Word32 L_denom_by_4;
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+ if ((var1 > var2) || (var1 < 0))
+ {
+ return 0; // used to exit(0);
+ }
+ if (var1)
+ {
+ if (var1 != var2)
+ {
+
+ L_num = (Word32) var1;
+ L_denom = (Word32) var2;
+ L_denom_by_2 = (L_denom << 1);
+ L_denom_by_4 = (L_denom << 2);
+ for (iteration = 5; iteration > 0; iteration--)
+ {
+ var_out <<= 3;
+ L_num <<= 3;
+
+ if (L_num >= L_denom_by_4)
+ {
+ L_num -= L_denom_by_4;
+ var_out |= 4;
+ }
+
+ if (L_num >= L_denom_by_2)
+ {
+ L_num -= L_denom_by_2;
+ var_out |= 2;
+ }
+
+ if (L_num >= (L_denom))
+ {
+ L_num -= (L_denom);
+ var_out |= 1;
+ }
+
+ }
+ }
+ else
+ {
+ var_out = MAX_16;
+ }
+ }
+
+#if (WMOPS)
+ multiCounter[currCounter].div_s++;
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+ return (var_out);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: extract_h.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32 ) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ L_var1 = Most significant word of input (Word16)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function returns the 16 MSB of the input, L_var1.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 extract_h (Word32 L_var1)
+{
+ Word16 var_out;
+
+ var_out = (Word16) (L_var1 >> 16);
+#if (WMOPS)
+ multiCounter[currCounter].extract_h++;
+#endif
+ return (var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word16 extract_h(Word32 L_var1)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+ return ((Word16)(L_var1 >> 16));
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: extract_l.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32 ) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ L_var1 = Most significant word of input (Word16)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function returns the 16 LSB of the input, L_var1.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 extract_l (Word32 L_var1)
+{
+ Word16 var_out;
+
+ var_out = (Word16) L_var1;
+#if (WMOPS)
+ multiCounter[currCounter].extract_l++;
+#endif
+ return (var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word16 extract_l(Word32 L_var1)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+ return ((Word16) L_var1);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: gains_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+#define NB_QUA_PITCH 16
+#define NB_QUA_CODE 32
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+
+
+ extern const Word16 qua_gain_pitch[];
+ const Word16 qua_gain_pitch[NB_QUA_PITCH] =
+ {
+ 0, 3277, 6556, 8192, 9830, 11469, 12288, 13107,
+ 13926, 14746, 15565, 16384, 17203, 18022, 18842, 19661
+ };
+
+
+ extern const Word16 qua_gain_code[];
+ const Word16 qua_gain_code[(NB_QUA_CODE+1)*3] =
+ {
+ /* gain factor (g_fac) and quantized energy error (qua_ener_MR122, qua_ener)
+ * are stored:
+ *
+ * qua_ener_MR122 = log2(g_fac) (not the rounded floating point value, but
+ * the value the original EFR algorithm
+ * calculates from g_fac [using Log2])
+ * qua_ener = 20*log10(g_fac); (rounded floating point value)
+ *
+ *
+ * g_fac (Q11), qua_ener_MR122 (Q10), qua_ener (Q10)
+ */
+ 159, -3776, -22731,
+ 206, -3394, -20428,
+ 268, -3005, -18088,
+ 349, -2615, -15739,
+ 419, -2345, -14113,
+ 482, -2138, -12867,
+ 554, -1932, -11629,
+ 637, -1726, -10387,
+ 733, -1518, -9139,
+ 842, -1314, -7906,
+ 969, -1106, -6656,
+ 1114, -900, -5416,
+ 1281, -694, -4173,
+ 1473, -487, -2931,
+ 1694, -281, -1688,
+ 1948, -75, -445,
+ 2241, 133, 801,
+ 2577, 339, 2044,
+ 2963, 545, 3285,
+ 3408, 752, 4530,
+ 3919, 958, 5772,
+ 4507, 1165, 7016,
+ 5183, 1371, 8259,
+ 5960, 1577, 9501,
+ 6855, 1784, 10745,
+ 7883, 1991, 11988,
+ 9065, 2197, 13231,
+ 10425, 2404, 14474,
+ 12510, 2673, 16096,
+ 16263, 3060, 18429,
+ 21142, 3448, 20763,
+ 27485, 3836, 23097,
+ 27485, 3836, 23097
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] gains.tab, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: gc_pred.cpp
+ Functions:
+ gc_pred_reset
+ gc_pred
+ gc_pred_update
+ gc_pred_average_limited
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the functions that perform codebook gain MA prediction.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "gc_pred.h"
+#include "basicop_malloc.h"
+#include "basic_op.h"
+#include "cnst.h"
+#include "log2.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NPRED 4 /* number of prediction taps */
+
+/* average innovation energy. */
+/* MEAN_ENER = 36.0/constant, constant = 20*Log10(2) */
+#define MEAN_ENER_MR122 783741L /* 36/(20*log10(2)) (Q17) */
+
+/* minimum quantized energy: -14 dB */
+#define MIN_ENERGY -14336 /* 14 Q10 */
+#define MIN_ENERGY_MR122 -2381 /* 14 / (20*log10(2)) Q10 */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/* MA prediction coefficients (Q13) */
+static const Word16 pred[NPRED] = {5571, 4751, 2785, 1556};
+
+/* MA prediction coefficients (Q6) */
+static const Word16 pred_MR122[NPRED] = {44, 37, 22, 12};
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gc_pred_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a structure of type gc_predState
+
+ Outputs:
+ past_qua_en field in the structure pointed to by state is initialized
+ to MIN_ENERGY
+ past_qua_en_MR122 field in the structure pointed to by state is
+ initialized to MIN_ENERGY_MR122
+
+ Returns:
+ return_value = 0, if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function initializes the state memory used by gc_pred to zero.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ gc_pred.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int gc_pred_reset (gc_predState *state)
+{
+ Word16 i;
+
+ if (state == (gc_predState *) NULL){
+ fprintf(stderr, "gc_pred_reset: invalid parameter\n");
+ return -1;
+ }
+
+ for(i = 0; i < NPRED; i++)
+ {
+ state->past_qua_en[i] = MIN_ENERGY;
+ state->past_qua_en_MR122[i] = MIN_ENERGY_MR122;
+ }
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF Word16 gc_pred_reset(gc_predState *state)
+{
+ Word16 i;
+
+ if (state == (gc_predState *) NULL)
+ {
+ /* fprintf(stderr, "gc_pred_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ for (i = 0; i < NPRED; i++)
+ {
+ state->past_qua_en[i] = MIN_ENERGY;
+ state->past_qua_en_MR122[i] = MIN_ENERGY_MR122;
+ }
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gc_pred
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type gc_predState
+ mode = AMR mode (enum Mode)
+ code = pointer to the innovative codebook vector; Q12 in MR122 mode,
+ otherwise, Q13 (Word16)
+ exp_gcode0 = pointer to the exponent part of predicted gain factor
+ (Q0) (Word16)
+ frac_gcode0 = pointer to the fractional part of predicted gain factor
+ (Q15) (Word16)
+ exp_en = pointer to the exponent part of the innovation energy; this
+ is calculated for MR795 mode, Q0 (Word16)
+ frac_en = pointer to the fractional part of the innovation energy;
+ this is calculated for MR795 mode, Q15 (Word16)
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ store pointed to by exp_gcode0 contains the exponent part of the
+ recently calculated predicted gain factor
+ store pointed to by frac_gcode0 contains the fractional part of the
+ recently calculated predicted gain factor
+ store pointed to by exp_en contains the exponent part of the
+ recently calculated innovation energy
+ store pointed to by frac_en contains the fractional part of the
+ recently calculated innovation energy
+ pOverflow = 1 if the math functions called by gc_pred
+ results in overflow else zero.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ pred = table of MA prediction coefficients (Q13) (Word16)
+ pred_MR122 = table of MA prediction coefficients (Q6) (Word16)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the MA prediction of the innovation energy (in
+ dB/(20*log10(2))), with the mean removed.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ gc_pred.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+The original etsi reference code uses a global flag Overflow. However, in the
+actual implementation a pointer to a the overflow flag is passed in.
+
+void
+gc_pred(
+ gc_predState *st, // i/o: State struct
+ enum Mode mode, // i : AMR mode
+ Word16 *code, // i : innovative codebook vector (L_SUBFR)
+ // MR122: Q12, other modes: Q13
+ Word16 *exp_gcode0, // o : exponent of predicted gain factor, Q0
+ Word16 *frac_gcode0,// o : fraction of predicted gain factor Q15
+ Word16 *exp_en, // o : exponent of innovation energy, Q0
+ // (only calculated for MR795)
+ Word16 *frac_en // o : fraction of innovation energy, Q15
+ // (only calculated for MR795)
+)
+{
+ Word16 i;
+ Word32 ener_code;
+ Word16 exp, frac;
+
+ *-------------------------------------------------------------------*
+ * energy of code: *
+ * ~~~~~~~~~~~~~~~ *
+ * ener_code = sum(code[i]^2) *
+ *-------------------------------------------------------------------*
+ ener_code = L_mac((Word32) 0, code[0], code[0]);
+ // MR122: Q12*Q12 -> Q25
+ // others: Q13*Q13 -> Q27
+ for (i = 1; i < L_SUBFR; i++)
+ ener_code = L_mac(ener_code, code[i], code[i]);
+
+ if (sub (mode, MR122) == 0)
+ {
+ Word32 ener;
+
+ // ener_code = ener_code / lcode; lcode = 40; 1/40 = 26214 Q20
+ ener_code = L_mult (pv_round (ener_code), 26214); // Q9 * Q20 -> Q30
+
+ *-------------------------------------------------------------------*
+ * energy of code: *
+ * ~~~~~~~~~~~~~~~ *
+ * ener_code(Q17) = 10 * Log10(energy) / constant *
+ * = 1/2 * Log2(energy) *
+ * constant = 20*Log10(2) *
+ *-------------------------------------------------------------------*
+ // ener_code = 1/2 * Log2(ener_code); Note: Log2=log2+30
+ Log2(ener_code, &exp, &frac);
+ ener_code = L_Comp (sub (exp, 30), frac); // Q16 for log()
+ // ->Q17 for 1/2 log()
+
+ *-------------------------------------------------------------------*
+ * predicted energy: *
+ * ~~~~~~~~~~~~~~~~~ *
+ * ener(Q24) = (Emean + sum{pred[i]*past_en[i]})/constant *
+ * = MEAN_ENER + sum(pred[i]*past_qua_en[i]) *
+ * constant = 20*Log10(2) *
+ *-------------------------------------------------------------------*
+
+ ener = MEAN_ENER_MR122; // Q24 (Q17)
+ for (i = 0; i < NPRED; i++)
+ {
+ ener = L_mac (ener, st->past_qua_en_MR122[i], pred_MR122[i]);
+ // Q10 * Q13 -> Q24
+ // Q10 * Q6 -> Q17
+ }
+
+ *-------------------------------------------------------------------*
+ * predicted codebook gain *
+ * ~~~~~~~~~~~~~~~~~~~~~~~ *
+ * gc0 = Pow10( (ener*constant - ener_code*constant) / 20 ) *
+ * = Pow2(ener-ener_code) *
+ * = Pow2(int(d)+frac(d)) *
+ * *
+ * (store exp and frac for pow2()) *
+ *-------------------------------------------------------------------*
+
+ ener = L_shr (L_sub (ener, ener_code), 1); // Q16
+ L_Extract(ener, exp_gcode0, frac_gcode0);
+ }
+ else // all modes except 12.2
+ {
+ Word32 L_tmp;
+ Word16 exp_code, gcode0;
+
+ *-----------------------------------------------------------------*
+ * Compute: means_ener - 10log10(ener_code/ L_sufr) *
+ *-----------------------------------------------------------------*
+
+ exp_code = norm_l (ener_code);
+ ener_code = L_shl (ener_code, exp_code);
+
+ // Log2 = log2 + 27
+ Log2_norm (ener_code, exp_code, &exp, &frac);
+
+ // fact = 10/log2(10) = 3.01 = 24660 Q13
+ L_tmp = Mpy_32_16(exp, frac, -24660); // Q0.Q15 * Q13 -> Q14
+
+ * L_tmp = means_ener - 10log10(ener_code/L_SUBFR)
+ * = means_ener - 10log10(ener_code) + 10log10(L_SUBFR)
+ * = K - fact * Log2(ener_code)
+ * = K - fact * log2(ener_code) - fact*27
+ *
+ * ==> K = means_ener + fact*27 + 10log10(L_SUBFR)
+ *
+ * means_ener = 33 = 540672 Q14 (MR475, MR515, MR59)
+ * means_ener = 28.75 = 471040 Q14 (MR67)
+ * means_ener = 30 = 491520 Q14 (MR74)
+ * means_ener = 36 = 589824 Q14 (MR795)
+ * means_ener = 33 = 540672 Q14 (MR102)
+ * 10log10(L_SUBFR) = 16.02 = 262481.51 Q14
+ * fact * 27 = 1331640 Q14
+ * -----------------------------------------
+ * (MR475, MR515, MR59) K = 2134793.51 Q14 ~= 16678 * 64 * 2
+ * (MR67) K = 2065161.51 Q14 ~= 32268 * 32 * 2
+ * (MR74) K = 2085641.51 Q14 ~= 32588 * 32 * 2
+ * (MR795) K = 2183945.51 Q14 ~= 17062 * 64 * 2
+ * (MR102) K = 2134793.51 Q14 ~= 16678 * 64 * 2
+
+
+ if (sub (mode, MR102) == 0)
+ {
+ // mean = 33 dB
+ L_tmp = L_mac(L_tmp, 16678, 64); // Q14
+ }
+ else if (sub (mode, MR795) == 0)
+ {
+ // ener_code = <xn xn> * 2^27*2^exp_code
+ // frac_en = ener_code / 2^16
+ // = <xn xn> * 2^11*2^exp_code
+ // <xn xn> = <xn xn>*2^11*2^exp * 2^exp_en
+ // := frac_en * 2^exp_en
+
+ // ==> exp_en = -11-exp_code;
+
+ *frac_en = extract_h (ener_code);
+ *exp_en = sub (-11, exp_code);
+
+ // mean = 36 dB
+ L_tmp = L_mac(L_tmp, 17062, 64); // Q14
+ }
+ else if (sub (mode, MR74) == 0)
+ {
+ // mean = 30 dB
+ L_tmp = L_mac(L_tmp, 32588, 32); // Q14
+ }
+ else if (sub (mode, MR67) == 0)
+ {
+ // mean = 28.75 dB
+ L_tmp = L_mac(L_tmp, 32268, 32); // Q14
+ }
+ else // MR59, MR515, MR475
+ {
+ // mean = 33 dB
+ L_tmp = L_mac(L_tmp, 16678, 64); // Q14
+ }
+
+ *-----------------------------------------------------------------*
+ * Compute gcode0. *
+ * = Sum(i=0,3) pred[i]*past_qua_en[i] - ener_code + mean_ener *
+ *-----------------------------------------------------------------*
+
+ L_tmp = L_shl(L_tmp, 10); // Q24
+ for (i = 0; i < 4; i++)
+ L_tmp = L_mac(L_tmp, pred[i], st->past_qua_en[i]);
+ // Q13 * Q10 -> Q24
+
+ gcode0 = extract_h(L_tmp); // Q8
+
+ *-----------------------------------------------------------------*
+ * gcode0 = pow(10.0, gcode0/20) *
+ * = pow(2, 3.3219*gcode0/20) *
+ * = pow(2, 0.166*gcode0) *
+ *-----------------------------------------------------------------*
+
+ // 5439 Q15 = 0.165985
+ // (correct: 1/(20*log10(2)) 0.166096 = 5443 Q15)
+ if (sub (mode, MR74) == 0) // For IS641 bitexactness
+ L_tmp = L_mult(gcode0, 5439); // Q8 * Q15 -> Q24
+ else
+ L_tmp = L_mult(gcode0, 5443); // Q8 * Q15 -> Q24
+
+ L_tmp = L_shr(L_tmp, 8); // -> Q16
+ L_Extract(L_tmp, exp_gcode0, frac_gcode0); // -> Q0.Q15
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void gc_pred(
+ gc_predState *st, /* i/o: State struct */
+ enum Mode mode, /* i : AMR mode */
+ Word16 *code, /* i : innovative codebook vector (L_SUBFR) */
+ /* MR122: Q12, other modes: Q13 */
+ Word16 *exp_gcode0, /* o : exponent of predicted gain factor, Q0 */
+ Word16 *frac_gcode0,/* o : fraction of predicted gain factor Q15 */
+ Word16 *exp_en, /* o : exponent of innovation energy, Q0 */
+ /* (only calculated for MR795) */
+ Word16 *frac_en, /* o : fraction of innovation energy, Q15 */
+ /* (only calculated for MR795) */
+ Flag *pOverflow
+)
+{
+ register Word16 i;
+ register Word32 L_temp1, L_temp2;
+ register Word32 L_tmp;
+ Word32 ener_code;
+ Word32 ener;
+ Word16 exp, frac;
+ Word16 exp_code, gcode0;
+ Word16 tmp;
+ Word16 *p_code = &code[0];
+
+ /*-------------------------------------------------------------------*
+ * energy of code: *
+ * ~~~~~~~~~~~~~~~ *
+ * ener_code = sum(code[i]^2) *
+ *-------------------------------------------------------------------*/
+ ener_code = 0;
+
+ /* MR122: Q12*Q12 -> Q25 */
+ /* others: Q13*Q13 -> Q27 */
+
+ for (i = L_SUBFR >> 2; i != 0; i--)
+ {
+ tmp = *(p_code++);
+ ener_code += ((Word32) tmp * tmp) >> 3;
+ tmp = *(p_code++);
+ ener_code += ((Word32) tmp * tmp) >> 3;
+ tmp = *(p_code++);
+ ener_code += ((Word32) tmp * tmp) >> 3;
+ tmp = *(p_code++);
+ ener_code += ((Word32) tmp * tmp) >> 3;
+ }
+
+ ener_code <<= 4;
+
+ if (ener_code < 0) /* Check for saturation */
+ {
+ ener_code = MAX_32;
+ }
+
+ if (mode == MR122)
+ {
+ /* ener_code = ener_code / lcode; lcode = 40; 1/40 = 26214 Q20 */
+ /* Q9 * Q20 -> Q30 */
+
+ ener_code = ((Word32)(pv_round(ener_code, pOverflow) * 26214)) << 1;
+
+ /*-------------------------------------------------------------*
+ * energy of code: *
+ * ~~~~~~~~~~~~~~~ *
+ * ener_code(Q17) = 10 * Log10(energy) / constant *
+ * = 1/2 * Log2(energy) *
+ * constant = 20*Log10(2) *
+ *-------------------------------------------------------------*/
+ /* ener_code = 1/2 * Log2(ener_code); Note: Log2=log2+30 */
+ Log2(ener_code, &exp, &frac, pOverflow);
+
+ /* Q16 for log() */
+ /* ->Q17 for 1/2 log()*/
+
+ L_temp1 = (Word32)(exp - 30) << 16;
+ ener_code = L_temp1 + ((Word32)frac << 1);
+
+ /*-------------------------------------------------------------*
+ * predicted energy: *
+ * ~~~~~~~~~~~~~~~~~ *
+ * ener(Q24) = (Emean + sum{pred[i]*past_en[i]})/constant *
+ * = MEAN_ENER + sum(pred[i]*past_qua_en[i]) *
+ * constant = 20*Log10(2) *
+ *-------------------------------------------------------------*/
+
+ ener = MEAN_ENER_MR122; /* Q24 (Q17) */
+ for (i = 0; i < NPRED; i++)
+ {
+ L_temp1 = (((Word32) st->past_qua_en_MR122[i]) *
+ pred_MR122[i]) << 1;
+ ener = L_add(ener, L_temp1, pOverflow);
+
+ /* Q10 * Q13 -> Q24 */
+ /* Q10 * Q6 -> Q17 */
+ }
+
+ /*---------------------------------------------------------------*
+ * predicted codebook gain *
+ * ~~~~~~~~~~~~~~~~~~~~~~~ *
+ * gc0 = Pow10( (ener*constant - ener_code*constant) / 20 ) *
+ * = Pow2(ener-ener_code) *
+ * = Pow2(int(d)+frac(d)) *
+ * *
+ * (store exp and frac for pow2()) *
+ *---------------------------------------------------------------*/
+ /* Q16 */
+
+ L_temp1 = L_sub(ener, ener_code, pOverflow);
+
+
+ *exp_gcode0 = (Word16)(L_temp1 >> 17);
+
+ L_temp2 = (Word32) * exp_gcode0 << 15;
+ L_temp1 >>= 2;
+
+ *frac_gcode0 = (Word16)(L_temp1 - L_temp2);
+
+ }
+ else /* all modes except 12.2 */
+ {
+ /*-----------------------------------------------------------------*
+ * Compute: means_ener - 10log10(ener_code/ L_sufr) *
+ *-----------------------------------------------------------------*/
+
+ exp_code = norm_l(ener_code);
+ ener_code = L_shl(ener_code, exp_code, pOverflow);
+
+ /* Log2 = log2 + 27 */
+ Log2_norm(ener_code, exp_code, &exp, &frac);
+
+ /* fact = 10/log2(10) = 3.01 = 24660 Q13 */
+ /* Q0.Q15 * Q13 -> Q14 */
+
+ L_temp2 = (((Word32) exp) * -24660) << 1;
+ L_tmp = (((Word32) frac) * -24660) >> 15;
+
+ /* Sign-extend resulting product */
+ if (L_tmp & (Word32) 0x00010000L)
+ {
+ L_tmp = L_tmp | (Word32) 0xffff0000L;
+ }
+
+ L_tmp = L_tmp << 1;
+ L_tmp = L_add(L_tmp, L_temp2, pOverflow);
+
+
+ /* L_tmp = means_ener - 10log10(ener_code/L_SUBFR)
+ * = means_ener - 10log10(ener_code) + 10log10(L_SUBFR)
+ * = K - fact * Log2(ener_code)
+ * = K - fact * log2(ener_code) - fact*27
+ *
+ * ==> K = means_ener + fact*27 + 10log10(L_SUBFR)
+ *
+ * means_ener = 33 = 540672 Q14 (MR475, MR515, MR59)
+ * means_ener = 28.75 = 471040 Q14 (MR67)
+ * means_ener = 30 = 491520 Q14 (MR74)
+ * means_ener = 36 = 589824 Q14 (MR795)
+ * means_ener = 33 = 540672 Q14 (MR102)
+ * 10log10(L_SUBFR) = 16.02 = 262481.51 Q14
+ * fact * 27 = 1331640 Q14
+ * -----------------------------------------
+ * (MR475, MR515, MR59) K = 2134793.51 Q14 ~= 16678 * 64 * 2
+ * (MR67) K = 2065161.51 Q14 ~= 32268 * 32 * 2
+ * (MR74) K = 2085641.51 Q14 ~= 32588 * 32 * 2
+ * (MR795) K = 2183945.51 Q14 ~= 17062 * 64 * 2
+ * (MR102) K = 2134793.51 Q14 ~= 16678 * 64 * 2
+ */
+
+ if (mode == MR102)
+ {
+ /* mean = 33 dB */
+ L_temp2 = (Word32) 16678 << 7;
+ L_tmp = L_add(L_tmp, L_temp2, pOverflow); /* Q14 */
+ }
+ else if (mode == MR795)
+ {
+ /* ener_code = <xn xn> * 2^27*2^exp_code
+ frac_en = ener_code / 2^16
+ = <xn xn> * 2^11*2^exp_code
+ <xn xn> = <xn xn>*2^11*2^exp * 2^exp_en
+ : = frac_en * 2^exp_en
+ ==> exp_en = -11-exp_code; */
+ *frac_en = (Word16)(ener_code >> 16);
+ *exp_en = -11 - exp_code;
+
+ /* mean = 36 dB */
+ L_temp2 = (Word32) 17062 << 7;
+ L_tmp = L_add(L_tmp, L_temp2, pOverflow); /* Q14 */
+ }
+ else if (mode == MR74)
+ {
+ /* mean = 30 dB */
+ L_temp2 = (Word32) 32588 << 6;
+ L_tmp = L_add(L_tmp, L_temp2, pOverflow); /* Q14 */
+ }
+ else if (mode == MR67)
+ {
+ /* mean = 28.75 dB */
+ L_temp2 = (Word32) 32268 << 6;
+ L_tmp = L_add(L_tmp, L_temp2, pOverflow); /* Q14 */
+ }
+ else /* MR59, MR515, MR475 */
+ {
+ /* mean = 33 dB */
+ L_temp2 = (Word32) 16678 << 7;
+ L_tmp = L_add(L_tmp, L_temp2, pOverflow); /* Q14 */
+ }
+
+ /*-------------------------------------------------------------*
+ * Compute gcode0. *
+ * = Sum(i=0,3) pred[i]*past_qua_en[i] - ener_code + mean_ener *
+ *--------------------------------------------------------------*/
+ /* Q24 */
+ if (L_tmp > (Word32) 0X001fffffL)
+ {
+ *pOverflow = 1;
+ L_tmp = MAX_32;
+ }
+ else if (L_tmp < (Word32) 0xffe00000L)
+ {
+ *pOverflow = 1;
+ L_tmp = MIN_32;
+ }
+ else
+ {
+ L_tmp = L_tmp << 10;
+ }
+
+ for (i = 0; i < 4; i++)
+ {
+ L_temp2 = ((((Word32) pred[i]) * st->past_qua_en[i]) << 1);
+ L_tmp = L_add(L_tmp, L_temp2, pOverflow); /* Q13 * Q10 -> Q24 */
+ }
+
+ gcode0 = (Word16)(L_tmp >> 16); /* Q8 */
+
+ /*-----------------------------------------------------------*
+ * gcode0 = pow(10.0, gcode0/20) *
+ * = pow(2, 3.3219*gcode0/20) *
+ * = pow(2, 0.166*gcode0) *
+ *-----------------------------------------------------------*/
+
+ /* 5439 Q15 = 0.165985 */
+ /* (correct: 1/(20*log10(2)) 0.166096 = 5443 Q15) */
+
+ if (mode == MR74) /* For IS641 bitexactness */
+ {
+ L_tmp = (((Word32) gcode0) * 5439) << 1; /* Q8 * Q15 -> Q24 */
+ }
+ else
+ {
+ L_tmp = (((Word32) gcode0) * 5443) << 1; /* Q8 * Q15 -> Q24 */
+ }
+
+ if (L_tmp < 0)
+ {
+ L_tmp = ~((~L_tmp) >> 8);
+ }
+ else
+ {
+ L_tmp = L_tmp >> 8; /* -> Q16 */
+ }
+
+ *exp_gcode0 = (Word16)(L_tmp >> 16);
+ if (L_tmp < 0)
+ {
+ L_temp1 = ~((~L_tmp) >> 1);
+ }
+ else
+ {
+ L_temp1 = L_tmp >> 1;
+ }
+ L_temp2 = (Word32) * exp_gcode0 << 15;
+ *frac_gcode0 = (Word16)(L_sub(L_temp1, L_temp2, pOverflow));
+ /* -> Q0.Q15 */
+ }
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gc_pred_update
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type gc_predState
+ qua_ener_MR122 = quantized energy for update (Q10); calculated as
+ (log2(qua_err)) (Word16)
+ qua_ener = quantized energy for update (Q10); calculated as
+ (20*log10(qua_err)) (Word16)
+
+ Outputs:
+ structure pointed to by st contains the calculated quantized energy
+ for update
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function updates the MA predictor with the last quantized energy.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ gc_pred.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void gc_pred_update(
+ gc_predState *st, // i/o: State struct
+ Word16 qua_ener_MR122, // i : quantized energy for update, Q10
+ // (log2(qua_err))
+ Word16 qua_ener // i : quantized energy for update, Q10
+ // (20*log10(qua_err))
+)
+{
+ Word16 i;
+
+ for (i = 3; i > 0; i--)
+ {
+ st->past_qua_en[i] = st->past_qua_en[i - 1];
+ st->past_qua_en_MR122[i] = st->past_qua_en_MR122[i - 1];
+ }
+
+ st->past_qua_en_MR122[0] = qua_ener_MR122; // log2 (qua_err), Q10
+
+ st->past_qua_en[0] = qua_ener; // 20*log10(qua_err), Q10
+
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void gc_pred_update(
+ gc_predState *st, /* i/o: State struct */
+ Word16 qua_ener_MR122, /* i : quantized energy for update, Q10 */
+ /* (log2(qua_err)) */
+ Word16 qua_ener /* i : quantized energy for update, Q10 */
+ /* (20*log10(qua_err)) */
+)
+{
+ st->past_qua_en[3] = st->past_qua_en[2];
+ st->past_qua_en_MR122[3] = st->past_qua_en_MR122[2];
+
+ st->past_qua_en[2] = st->past_qua_en[1];
+ st->past_qua_en_MR122[2] = st->past_qua_en_MR122[1];
+
+ st->past_qua_en[1] = st->past_qua_en[0];
+ st->past_qua_en_MR122[1] = st->past_qua_en_MR122[0];
+
+ st->past_qua_en_MR122[0] = qua_ener_MR122; /* log2 (qua_err), Q10 */
+
+ st->past_qua_en[0] = qua_ener; /* 20*log10(qua_err), Q10 */
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gc_pred_average_limited
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type gc_predState
+ ener_avg_MR122 = pointer to the averaged quantized energy (Q10);
+ calculated as (log2(qua_err)) (Word16)
+ ener_avg = pointer to the averaged quantized energy (Q10); calculated
+ as (20*log10(qua_err)) (Word16)
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ store pointed to by ener_avg_MR122 contains the new averaged quantized
+ energy
+ store pointed to by ener_avg contains the new averaged quantized
+ energy
+ pOverflow = 1 if the math functions called by gc_pred_average_limited
+ results in overflow else zero.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates the average of MA predictor state values (with a
+ lower limit) used in error concealment.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ gc_pred.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+The original etsi reference code uses a global flag Overflow. However, in the
+actual implementation a pointer to a the overflow flag is passed in.
+
+void gc_pred_average_limited(
+ gc_predState *st, // i: State struct
+ Word16 *ener_avg_MR122, // o: everaged quantized energy, Q10
+ // (log2(qua_err))
+ Word16 *ener_avg // o: averaged quantized energy, Q10
+ // (20*log10(qua_err))
+)
+{
+ Word16 av_pred_en;
+ Word16 i;
+
+ // do average in MR122 mode (log2() domain)
+ av_pred_en = 0;
+ for (i = 0; i < NPRED; i++)
+ {
+ av_pred_en = add (av_pred_en, st->past_qua_en_MR122[i]);
+ }
+
+ // av_pred_en = 0.25*av_pred_en
+ av_pred_en = mult (av_pred_en, 8192);
+
+ // if (av_pred_en < -14/(20Log10(2))) av_pred_en = ..
+
+ if (sub (av_pred_en, MIN_ENERGY_MR122) < 0)
+ {
+ av_pred_en = MIN_ENERGY_MR122;
+ }
+ *ener_avg_MR122 = av_pred_en;
+
+ // do average for other modes (20*log10() domain)
+ av_pred_en = 0;
+ for (i = 0; i < NPRED; i++)
+ {
+ av_pred_en = add (av_pred_en, st->past_qua_en[i]);
+ }
+
+ // av_pred_en = 0.25*av_pred_en
+ av_pred_en = mult (av_pred_en, 8192);
+
+ // if (av_pred_en < -14) av_pred_en = ..
+
+ if (sub (av_pred_en, MIN_ENERGY) < 0)
+ {
+ av_pred_en = MIN_ENERGY;
+ }
+ *ener_avg = av_pred_en;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void gc_pred_average_limited(
+ gc_predState *st, /* i: State struct */
+ Word16 *ener_avg_MR122, /* o: everaged quantized energy, Q10 */
+ /* (log2(qua_err)) */
+ Word16 *ener_avg, /* o: averaged quantized energy, Q10 */
+ /* (20*log10(qua_err)) */
+ Flag *pOverflow
+)
+{
+ Word16 av_pred_en;
+ register Word16 i;
+
+ /* do average in MR122 mode (log2() domain) */
+ av_pred_en = 0;
+ for (i = 0; i < NPRED; i++)
+ {
+ av_pred_en =
+ add_16(av_pred_en, st->past_qua_en_MR122[i], pOverflow);
+ }
+
+ /* av_pred_en = 0.25*av_pred_en (with sign-extension)*/
+ if (av_pred_en < 0)
+ {
+ av_pred_en = (av_pred_en >> 2) | 0xc000;
+ }
+ else
+ {
+ av_pred_en >>= 2;
+ }
+
+ /* if (av_pred_en < -14/(20Log10(2))) av_pred_en = .. */
+ if (av_pred_en < MIN_ENERGY_MR122)
+ {
+ av_pred_en = MIN_ENERGY_MR122;
+ }
+ *ener_avg_MR122 = av_pred_en;
+
+ /* do average for other modes (20*log10() domain) */
+ av_pred_en = 0;
+ for (i = 0; i < NPRED; i++)
+ {
+ av_pred_en = add_16(av_pred_en, st->past_qua_en[i], pOverflow);
+ }
+
+ /* av_pred_en = 0.25*av_pred_en (with sign-extension)*/
+ if (av_pred_en < 0)
+ {
+ av_pred_en = (av_pred_en >> 2) | 0xc000;
+ }
+ else
+ {
+ av_pred_en >>= 2;
+ }
+
+ /* if (av_pred_en < -14) av_pred_en = .. */
+ if (av_pred_en < MIN_ENERGY)
+ {
+ av_pred_en = MIN_ENERGY;
+ }
+ *ener_avg = av_pred_en;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+#ifndef GET_CONST_TBLS_H
+#include "get_const_tbls.h"
+#endif
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ extern const Word16 dgray[];
+ extern const Word16 dico1_lsf_3[];
+ extern const Word16 dico1_lsf_5[];
+ extern const Word16 dico2_lsf_3[];
+ extern const Word16 dico2_lsf_5[];
+ extern const Word16 dico3_lsf_3[];
+ extern const Word16 dico3_lsf_5[];
+ extern const Word16 dico4_lsf_5[];
+ extern const Word16 dico5_lsf_5[];
+ extern const Word16 gray[];
+ extern const Word16 lsp_init_data[];
+ extern const Word16 mean_lsf_3[];
+ extern const Word16 mean_lsf_5[];
+ extern const Word16 mr515_3_lsf[];
+ extern const Word16 mr795_1_lsf[];
+ extern const Word16 past_rq_init[];
+ extern const Word16 pred_fac_3[];
+ extern const Word16 qua_gain_code[];
+ extern const Word16 qua_gain_pitch[];
+ extern const Word16 startPos[];
+ extern const Word16 table_gain_lowrates[];
+ extern const Word16 table_gain_highrates[];
+ extern const Word16 prmno[];
+ extern const Word16* const bitno[];
+ extern const Word16 numOfBits[];
+ extern const Word16* const reorderBits[];
+ extern const Word16 numCompressedBytes[];
+ extern const Word16 window_200_40[];
+ extern const Word16 window_160_80[];
+ extern const Word16 window_232_8[];
+ extern const Word16 ph_imp_low_MR795[];
+ extern const Word16 ph_imp_mid_MR795[];
+ extern const Word16 ph_imp_low[];
+ extern const Word16 ph_imp_mid[];
+
+#ifdef __cplusplus
+}
+#endif
+
+OSCL_EXPORT_REF void get_const_tbls(CommonAmrTbls* tbl_struct_ptr)
+{
+ tbl_struct_ptr->dgray_ptr = dgray;
+ tbl_struct_ptr->dico1_lsf_3_ptr = dico1_lsf_3;
+ tbl_struct_ptr->dico1_lsf_5_ptr = dico1_lsf_5;
+ tbl_struct_ptr->dico2_lsf_3_ptr = dico2_lsf_3;
+ tbl_struct_ptr->dico2_lsf_5_ptr = dico2_lsf_5;
+ tbl_struct_ptr->dico3_lsf_3_ptr = dico3_lsf_3;
+ tbl_struct_ptr->dico3_lsf_5_ptr = dico3_lsf_5;
+ tbl_struct_ptr->dico4_lsf_5_ptr = dico4_lsf_5;
+ tbl_struct_ptr->dico5_lsf_5_ptr = dico5_lsf_5;
+ tbl_struct_ptr->gray_ptr = gray;
+ tbl_struct_ptr->lsp_init_data_ptr = lsp_init_data;
+ tbl_struct_ptr->mean_lsf_3_ptr = mean_lsf_3;
+ tbl_struct_ptr->mean_lsf_5_ptr = mean_lsf_5;
+ tbl_struct_ptr->mr515_3_lsf_ptr = mr515_3_lsf;
+ tbl_struct_ptr->mr795_1_lsf_ptr = mr795_1_lsf;
+ tbl_struct_ptr->past_rq_init_ptr = past_rq_init;
+ tbl_struct_ptr->pred_fac_3_ptr = pred_fac_3;
+ tbl_struct_ptr->qua_gain_code_ptr = qua_gain_code;
+ tbl_struct_ptr->qua_gain_pitch_ptr = qua_gain_pitch;
+ tbl_struct_ptr->startPos_ptr = startPos;
+ tbl_struct_ptr->table_gain_lowrates_ptr = table_gain_lowrates;
+ tbl_struct_ptr->table_gain_highrates_ptr = table_gain_highrates;
+ tbl_struct_ptr->prmno_ptr = prmno;
+ tbl_struct_ptr->bitno_ptr = bitno;
+ tbl_struct_ptr->numOfBits_ptr = numOfBits;
+ tbl_struct_ptr->reorderBits_ptr = reorderBits;
+ tbl_struct_ptr->numCompressedBytes_ptr = numCompressedBytes;
+ tbl_struct_ptr->window_200_40_ptr = window_200_40;
+ tbl_struct_ptr->window_160_80_ptr = window_160_80;
+ tbl_struct_ptr->window_232_8_ptr = window_232_8;
+ tbl_struct_ptr->ph_imp_low_MR795_ptr = ph_imp_low_MR795;
+ tbl_struct_ptr->ph_imp_mid_MR795_ptr = ph_imp_mid_MR795;
+ tbl_struct_ptr->ph_imp_low_ptr = ph_imp_low;
+ tbl_struct_ptr->ph_imp_mid_ptr = ph_imp_mid;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: gmed_n.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "gmed_n.h"
+#include "typedef.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NMAX 9 /* largest N used in median calculation */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gmed_n
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ ind = input values (Word16)
+ n = number of inputs to find the median (Word16)
+
+ Returns:
+ median value.
+
+ Outputs:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates N-point median of a data set. This routine is only
+ valid for a odd number of gains (n <= NMAX).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ gmed_n.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 gmed_n ( // o : The median value (0...N-1)
+ Word16 ind[], // i : Past gain values
+ Word16 n // i : The number of gains; this routine
+ // is only valid for a odd number of gains
+ // (n <= NMAX)
+)
+{
+ Word16 i, j, ix = 0;
+ Word16 max;
+ Word16 medianIndex;
+ Word16 tmp[NMAX];
+ Word16 tmp2[NMAX];
+
+ for (i = 0; i < n; i++)
+ {
+ tmp2[i] = ind[i];
+ }
+
+ for (i = 0; i < n; i++)
+ {
+ max = -32767;
+ for (j = 0; j < n; j++)
+ {
+ if (sub (tmp2[j], max) >= 0)
+ {
+ max = tmp2[j];
+ ix = j;
+ }
+ }
+ tmp2[ix] = -32768;
+ tmp[i] = ix;
+ }
+
+ medianIndex=tmp[ shr(n,1) ]; // account for complex addressing
+ return (ind[medianIndex]);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF Word16 gmed_n( /* o : the median value */
+ Word16 ind[], /* i : input values */
+ Word16 n /* i : number of inputs */
+)
+{
+ register Word16 i, j, ix = 0;
+ register Word16 max;
+ register Word16 medianIndex;
+ Word16 tmp[NMAX];
+ Word16 tmp2[NMAX];
+
+ oscl_memmove(tmp2, ind, n*sizeof(*ind));
+
+ for (i = 0; i < n; i++)
+ {
+ max = -32767;
+ for (j = 0; j < n; j++)
+ {
+ if (*(tmp2 + j) >= max)
+ {
+ max = *(tmp2 + j);
+ ix = j;
+ }
+ }
+ *(tmp2 + ix) = -32768;
+ *(tmp + i) = ix;
+ }
+
+ medianIndex = *(tmp + (n >> 1)); /* account for complex addressing */
+
+ return (*(ind + medianIndex));
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: gray_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the declaration for the gray encoding and decoding tables,
+ gray_tbl[] and dgray_tbl[] used by the c1035pf and d1035pf module
+ respectively.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+
+ extern const Word16 gray[];
+ extern const Word16 dgray[];
+ const Word16 gray[8] = {0, 1, 3, 2, 6, 4, 5, 7};
+ const Word16 dgray[8] = {0, 1, 3, 2, 5, 6, 4, 7};
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] gray.tab, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: grid_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the declaration for grid_tbl[] used by the az_lsp()
+ function.
+
+ // Table for az_lsp()
+ //
+ // grid[0] = 1.0;
+ // grid[grid_points+1] = -1.0;
+ // for (i = 1; i < grid_points; i++)
+ // grid[i] = cos((6.283185307*i)/(2.0*grid_points));
+ //
+ //
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "az_lsp.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+#define grid_points 60
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+ const Word16 grid[grid_points + 1] =
+ {
+ 32760, 32723, 32588, 32364, 32051, 31651,
+ 31164, 30591, 29935, 29196, 28377, 27481,
+ 26509, 25465, 24351, 23170, 21926, 20621,
+ 19260, 17846, 16384, 14876, 13327, 11743,
+ 10125, 8480, 6812, 5126, 3425, 1714,
+ 0, -1714, -3425, -5126, -6812, -8480,
+ -10125, -11743, -13327, -14876, -16384, -17846,
+ -19260, -20621, -21926, -23170, -24351, -25465,
+ -26509, -27481, -28377, -29196, -29935, -30591,
+ -31164, -31651, -32051, -32364, -32588, -32723,
+ -32760
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] grid.tab, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: int_lpc.cpp
+ Functions:
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "int_lpc.h"
+#include "typedef.h"
+#include "cnst.h"
+#include "lsp_az.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Int_lpc_1and3
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsp_old -- array of type Word16 -- LSP vector at the
+ 4th subfr. of past frame (M)
+ lsp_mid -- array of type Word16 -- LSP vector at the 2nd subfr. of
+ present frame (M)
+ lsp_new -- array of type Word16 -- LSP vector at the 4th subfr. of
+ present frame (M)
+
+ Outputs:
+ Az -- array of type Word16 -- interpolated LP parameters in all subfr.
+ (AZ_SIZE)
+ pOverflow -- pointer to type Flag -- Overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Interpolates the LSPs and converts to LPC parameters
+ to get a different LP filter in each subframe.
+ Description : The 20 ms speech frame is divided into 4 subframes.
+ The LSPs are quantized and transmitted at the 2nd and
+ 4th subframes (twice per frame) and interpolated at the
+ 1st and 3rd subframe.
+
+ |------|------|------|------|
+ sf1 sf2 sf3 sf4
+ F0 Fm F1
+
+ sf1: 1/2 Fm + 1/2 F0 sf3: 1/2 F1 + 1/2 Fm
+ sf2: Fm sf4: F1
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ int_lpc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Int_lpc_1and3(
+ Word16 lsp_old[], /* i : LSP vector at the 4th subfr. of past frame (M) */
+ Word16 lsp_mid[], /* i : LSP vector at the 2nd subfr. of
+ present frame (M) */
+ Word16 lsp_new[], /* i : LSP vector at the 4th subfr. of
+ present frame (M) */
+ Word16 Az[], /* o : interpolated LP parameters in all subfr.
+ (AZ_SIZE) */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+ Word16 lsp[M];
+ Word16 *p_lsp_old = &lsp_old[0];
+ Word16 *p_lsp_mid = &lsp_mid[0];
+ Word16 *p_lsp_new = &lsp_new[0];
+ Word16 *p_lsp = &lsp[0];
+
+ /* lsp[i] = lsp_mid[i] * 0.5 + lsp_old[i] * 0.5 */
+
+ for (i = M >> 1; i != 0; i--)
+ {
+ *(p_lsp++) = (*(p_lsp_old++) >> 1) + (*(p_lsp_mid++) >> 1);
+ *(p_lsp++) = (*(p_lsp_old++) >> 1) + (*(p_lsp_mid++) >> 1);
+ }
+
+ Lsp_Az(
+ lsp,
+ Az,
+ pOverflow); /* Subframe 1 */
+
+ Az += MP1;
+
+ Lsp_Az(
+ lsp_mid,
+ Az,
+ pOverflow); /* Subframe 2 */
+
+ Az += MP1;
+
+ p_lsp_mid = &lsp_mid[0];
+ p_lsp = &lsp[0];
+
+ for (i = M >> 1; i != 0; i--)
+ {
+ *(p_lsp++) = (*(p_lsp_mid++) >> 1) + (*(p_lsp_new++) >> 1);
+ *(p_lsp++) = (*(p_lsp_mid++) >> 1) + (*(p_lsp_new++) >> 1);
+ }
+
+ Lsp_Az(
+ lsp,
+ Az,
+ pOverflow); /* Subframe 3 */
+
+ Az += MP1;
+
+ Lsp_Az(
+ lsp_new,
+ Az,
+ pOverflow); /* Subframe 4 */
+
+ return;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Int_lpc_1and3_2
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsp_old -- array of type Word16 -- LSP vector at the
+ 4th subfr. of past frame (M)
+ lsp_mid -- array of type Word16 -- LSP vector at the 2nd subfr. of
+ present frame (M)
+ lsp_new -- array of type Word16 -- LSP vector at the 4th subfr. of
+ present frame (M)
+
+ Outputs:
+ Az -- array of type Word16 -- interpolated LP parameters in.
+ subfr 1 and 2.
+ pOverflow -- pointer to type Flag -- Overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Interpolation of the LPC parameters. Same as the Int_lpc
+ function but we do not recompute Az() for subframe 2 and
+ 4 because it is already available.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ int_lpc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Int_lpc_1and3_2(
+ Word16 lsp_old[], /* i : LSP vector at the 4th subfr. of past frame (M) */
+ Word16 lsp_mid[], /* i : LSP vector at the 2nd subframe of
+ present frame (M) */
+ Word16 lsp_new[], /* i : LSP vector at the 4th subframe of
+ present frame (M) */
+ Word16 Az[], /* o :interpolated LP parameters
+ in subframes 1 and 3 (AZ_SIZE) */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+ Word16 lsp[M];
+ Word16 *p_lsp_old = &lsp_old[0];
+ Word16 *p_lsp_mid = &lsp_mid[0];
+ Word16 *p_lsp_new = &lsp_new[0];
+ Word16 *p_lsp = &lsp[0];
+
+ /* lsp[i] = lsp_mid[i] * 0.5 + lsp_old[i] * 0.5 */
+
+ for (i = M >> 1; i != 0; i--)
+ {
+ *(p_lsp++) = (*(p_lsp_old++) >> 1) + (*(p_lsp_mid++) >> 1);
+ *(p_lsp++) = (*(p_lsp_old++) >> 1) + (*(p_lsp_mid++) >> 1);
+ }
+ Lsp_Az(lsp, Az, pOverflow); /* Subframe 1 */
+ Az += MP1 * 2;
+
+ p_lsp_mid = &lsp_mid[0];
+ p_lsp = &lsp[0];
+
+ for (i = M >> 1; i != 0; i--)
+ {
+ *(p_lsp++) = (*(p_lsp_mid++) >> 1) + (*(p_lsp_new++) >> 1);
+ *(p_lsp++) = (*(p_lsp_mid++) >> 1) + (*(p_lsp_new++) >> 1);
+ }
+
+ Lsp_Az(lsp, Az, pOverflow); /* Subframe 3 */
+
+ return;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lsp
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsp_old -- array of type Word16 -- LSP vector at the
+ 4th subfr. of past frame (M)
+ lsp_new -- array of type Word16 -- LSP vector at the 4th subfr. of
+ present frame (M)
+
+ Outputs:
+ Az -- array of type Word16 -- interpolated LP parameters in.
+ all subframes.
+ pOverflow -- pointer to type Flag -- Overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Interpolates the LSPs and convert to LP parameters to get
+ a different LP filter in each subframe.
+
+ DESCRIPTION:
+ The 20 ms speech frame is divided into 4 subframes.
+ The LSPs are quantized and transmitted at the 4th subframe
+ (once per frame) and interpolated at the 1st, 2nd and 3rd subframe.
+
+ |------|------|------|------|
+ sf1 sf2 sf3 sf4
+ F0 F1
+
+ sf1: 3/4 F0 + 1/4 F1 sf3: 1/4 F0 + 3/4 F1
+ sf2: 1/2 F0 + 1/2 F1 sf4: F1
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ int_lpc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Int_lpc_1to3(
+ Word16 lsp_old[], /* input : LSP vector at the 4th SF of past frame */
+ Word16 lsp_new[], /* input : LSP vector at the 4th SF of present frame */
+ Word16 Az[], /* output: interpolated LP parameters in all SFs */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+ Word16 temp;
+
+ Word16 lsp[M];
+
+ for (i = 0; i < M; i++)
+ {
+ temp = lsp_old[i] - (lsp_old[i] >> 2);
+ lsp[i] = temp + (lsp_new[i] >> 2);
+ }
+
+ Lsp_Az(
+ lsp,
+ Az,
+ pOverflow); /* Subframe 1 */
+
+ Az += MP1;
+
+
+ for (i = 0; i < M; i++)
+ {
+ lsp[i] = (lsp_new[i] >> 1) + (lsp_old[i] >> 1);
+
+ }
+
+ Lsp_Az(lsp, Az, pOverflow); /* Subframe 2 */
+
+ Az += MP1;
+
+ for (i = 0; i < M; i++)
+ {
+
+ temp = lsp_new[i] - (lsp_new[i] >> 2);
+ lsp[i] = temp + (lsp_old[i] >> 2);
+
+ }
+
+ Lsp_Az(lsp, Az, pOverflow); /* Subframe 3 */
+
+ Az += MP1;
+
+ Lsp_Az(lsp_new, Az, pOverflow); /* Subframe 4 */
+
+ return;
+}
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Int_lpc_1to3_2
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsp_old -- array of type Word16 -- LSP vector at the
+ 4th subfr. of past frame (M)
+ lsp_new -- array of type Word16 -- LSP vector at the 4th subfr. of
+ present frame (M)
+
+ Outputs:
+ Az -- array of type Word16 -- interpolated LP parameters in.
+ subfr 1, 2, and 3.
+ pOverflow -- pointer to type Flag -- Overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Interpolation of the LPC parameters.
+ Same as the previous function but we do not recompute Az() for
+ subframe 4 because it is already available.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ int_lpc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Int_lpc_1to3_2(
+ Word16 lsp_old[], /* input : LSP vector at the 4th SF of past frame */
+ Word16 lsp_new[], /* input : LSP vector at the 4th SF of present frame */
+ Word16 Az[], /* output: interpolated LP parameters in SFs 1,2,3 */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+ Word16 temp;
+ Word16 lsp[M];
+
+ for (i = 0; i < M; i++)
+ {
+ temp = lsp_old[i] - (lsp_old[i] >> 2);
+ lsp[i] = temp + (lsp_new[i] >> 2);
+
+ }
+
+ Lsp_Az(lsp, Az, pOverflow); /* Subframe 1 */
+
+ Az += MP1;
+
+ for (i = 0; i < M; i++)
+ {
+ lsp[i] = (lsp_new[i] >> 1) + (lsp_old[i] >> 1);
+
+ }
+
+ Lsp_Az(lsp, Az, pOverflow); /* Subframe 2 */
+
+ Az += MP1;
+
+ for (i = 0; i < M; i++)
+ {
+ temp = lsp_new[i] - (lsp_new[i] >> 2);
+ lsp[i] = temp + (lsp_old[i] >> 2);
+
+ }
+
+ Lsp_Az(lsp, Az, pOverflow); /* Subframe 3 */
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: inv_sqrt.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "inv_sqrt.h"
+#include "typedef.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Inv_sqrt
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_x = input value (Word32)
+ pOverflow = pointer to overflow flag
+
+ Outputs:
+ pOverflow -> if the Inv_sqrt operation resulted in an overflow.
+
+ Returns:
+ L_y = inverse squareroot of L_x (Word32)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes 1/sqrt(L_x), where L_x is positive.
+ If L_x is negative or zero, the result is 1 (3fff ffff).
+
+ The function 1/sqrt(L_x) is approximated by a table and linear
+ interpolation. The inverse square root is computed using the
+ following steps:
+ 1- Normalization of L_x.
+ 2- If (30-exponent) is even then shift right once.
+ 3- exponent = (30-exponent)/2 +1
+ 4- i = bit25-b31 of L_x; 16<=i<=63 because of normalization.
+ 5- a = bit10-b24
+ 6- i -=16
+ 7- L_y = table[i]<<16 - (table[i] - table[i+1]) * a * 2
+ 8- L_y >>= exponent
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ inv_sqrt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word32 Inv_sqrt ( // (o) : output value
+ Word32 L_x // (i) : input value
+)
+{
+ Word16 exp, i, a, tmp;
+ Word32 L_y;
+
+* The reference ETSI code uses a global Overflow flag. In the actual
+* implementation a pointer to the overflow flag is passed into the function.
+* This pointer is in turn passed into the basic math functions such as add(),
+* L_shl(), L_shr(), sub() called by this module.
+
+ if (L_x <= (Word32) 0)
+ return ((Word32) 0x3fffffffL);
+
+ exp = norm_l (L_x);
+ L_x = L_shl (L_x, exp); // L_x is normalize
+
+ exp = sub (30, exp);
+
+ if ((exp & 1) == 0) // If exponent even -> shift right
+ {
+ L_x = L_shr (L_x, 1);
+ }
+ exp = shr (exp, 1);
+ exp = add (exp, 1);
+
+ L_x = L_shr (L_x, 9);
+ i = extract_h (L_x); // Extract b25-b31
+ L_x = L_shr (L_x, 1);
+ a = extract_l (L_x); // Extract b10-b24
+ a = a & (Word16) 0x7fff;
+
+ i = sub (i, 16);
+
+ L_y = L_deposit_h (table[i]); // table[i] << 16
+ tmp = sub (table[i], table[i + 1]); // table[i] - table[i+1])
+ L_y = L_msu (L_y, tmp, a); // L_y -= tmp*a*2
+
+ L_y = L_shr (L_y, exp); // denormalization
+
+ return (L_y);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF Word32 Inv_sqrt( /* (o) : output value */
+ Word32 L_x, /* (i) : input value */
+ Flag * pOverflow /* (i) : pointer to overflow flag */
+)
+{
+ Word16 exp;
+ Word16 i;
+ Word16 a;
+ Word16 tmp;
+ Word32 L_y;
+ OSCL_UNUSED_ARG(pOverflow);
+
+ if (L_x <= (Word32) 0)
+ {
+ return ((Word32) 0x3fffffffL);
+ }
+
+ exp = norm_l(L_x);
+ L_x <<= exp; /* L_x is normalize */
+
+ exp = 30 - exp;
+
+ if ((exp & 1) == 0) /* If exponent even -> shift right */
+ {
+ L_x >>= 1;
+ }
+ exp >>= 1;
+ exp += 1;
+
+ L_x >>= 9;
+ i = (Word16)(L_x >> 16); /* Extract b25-b31 */
+ a = (Word16)(L_x >> 1); /* Extract b10-b24 */
+ a &= (Word16) 0x7fff;
+
+ i -= 16;
+
+ L_y = (Word32)inv_sqrt_tbl[i] << 16; /* inv_sqrt_tbl[i] << 16 */
+
+ /* inv_sqrt_tbl[i] - inv_sqrt_tbl[i+1]) */
+ tmp = inv_sqrt_tbl[i] - inv_sqrt_tbl[i + 1];
+ /* always a positive number less than 200 */
+
+ L_y -= ((Word32)tmp * a) << 1; /* L_y -= tmp*a*2 */
+ /* always a positive minus a small negative number */
+
+ L_y >>= exp; /* denormalization, exp always 0< exp < 31 */
+
+ return (L_y);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: inv_sqrt_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the declaration for table[] used by the inv_sqrt function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "inv_sqrt.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+ const Word16 inv_sqrt_tbl[49] =
+ {
+
+ 32767, 31790, 30894, 30070, 29309, 28602, 27945, 27330, 26755, 26214,
+ 25705, 25225, 24770, 24339, 23930, 23541, 23170, 22817, 22479, 22155,
+ 21845, 21548, 21263, 20988, 20724, 20470, 20225, 19988, 19760, 19539,
+ 19326, 19119, 18919, 18725, 18536, 18354, 18176, 18004, 17837, 17674,
+ 17515, 17361, 17211, 17064, 16921, 16782, 16646, 16514, 16384
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] inv_sqrt.tab file, UMTS GSM AMR speech codec, R99 - Version 3.2.0,
+ March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: l_abs.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32 ) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ L_var1 = absolute value of input (Word32)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates the absolute value of L_var1; saturate in case
+ where the input is -214783648.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word32 L_abs (Word32 L_var1)
+{
+ Word32 L_var_out;
+
+ if (L_var1 == MIN_32)
+ {
+ L_var_out = MAX_32;
+ }
+ else
+ {
+ if (L_var1 < 0)
+ {
+ L_var_out = -L_var1;
+ }
+ else
+ {
+ L_var_out = L_var1;
+ }
+ }
+
+#if (WMOPS)
+ multiCounter[currCounter].L_abs++;
+#endif
+ return (L_var_out);
+}
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word32 L_abs(register Word32 L_var1)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+
+ Word32 y = L_var1 - (L_var1 < 0);
+ y = y ^(y >> 31);
+ return (y);
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: l_deposit_h.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ var1 = deposit of var1 into MSWord of 32 bit value (Word32)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function deposits the 16 bit var1 into the 16 MS bits of the 32 bit
+ output. The 16 LS bits of the output are zeroed.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word32 L_deposit_h (Word16 var1)
+{
+ Word32 L_var_out;
+
+ L_var_out = (Word32) var1 << 16;
+#if (WMOPS)
+ multiCounter[currCounter].L_deposit_h++;
+#endif
+ return (L_var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word32 L_deposit_h(Word16 var1)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+ return ((Word32) var1 << 16);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: l_deposit_l.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ var1 = deposit of var1 into LSWord of 32 bit value (Word32)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function deposits the 16 bit var1 into the 16 LS bits of the 32 bit
+ output. The 16 MS bits of the output are sign extended.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word32 L_deposit_l (Word16 var1)
+{
+ Word32 L_var_out;
+
+ L_var_out = (Word32) var1;
+#if (WMOPS)
+ multiCounter[currCounter].L_deposit_l++;
+#endif
+ return (L_var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word32 L_deposit_l(Word16 var1)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+ return ((Word32) var1);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: l_shr_r.cpp
+
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: L_shr_r
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32 ) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit shift operation resulted in overflow
+
+ Returns:
+ result = Shifted result w/ rounding (Word32)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function arithmetically shifts the 32 bit input L_var1 right var2
+ positions with rounding. If var2 is negative, the function
+ arithmetically shifts L_var1 left by -var2 and zero fills the -var2 LSB of
+ the result. The result is saturated in case of underflows or overflows, i.e.,
+
+ - If var2 is greater than zero :
+ if (L_sub(L_shl(L_shr(L_var1,var2),1),L_shr(L_var1,sub(var2,1))))
+ is equal to zero
+ then
+ L_shr_r(L_var1,var2) = L_shr(L_var1,var2)
+ else
+ L_shr_r(L_var1,var2) = L_add(L_shr(L_var1,var2),1)
+ - If var2 is less than or equal to zero :
+ L_shr_r(L_var1,var2) = L_shr(L_var1,var2).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] L_shr_r() function in basic_op2.c, UMTS GSM AMR speech codec, R99 -
+ Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word32 L_shr_r (Word32 L_var1, Word16 var2)
+{
+ Word32 L_var_out;
+
+* The reference ETSI code uses a global flag for Overflow. In the actual
+* implementation a pointer to Overflow flag is passed in as a parameter to the
+* function L_shr()
+
+ if (var2 > 31)
+ {
+ L_var_out = 0;
+ }
+ else
+ {
+ L_var_out = L_shr (L_var1, var2);
+#if (WMOPS)
+ multiCounter[currCounter].L_shr--;
+#endif
+ if (var2 > 0)
+ {
+ if ((L_var1 & ((Word32) 1 << (var2 - 1))) != 0)
+ {
+ L_var_out++;
+ }
+ }
+ }
+#if (WMOPS)
+ multiCounter[currCounter].L_shr_r++;
+#endif
+ return (L_var_out);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+OSCL_EXPORT_REF Word32 L_shr_r(register Word32 L_var1, register Word16 var2, Flag *pOverflow)
+{
+ Word32 result;
+
+ if (var2 > 31)
+ {
+ result = 0;
+ }
+ else
+ {
+ result = L_shr(L_var1, var2, pOverflow);
+
+ if (var2 > 0)
+ {
+ if ((L_var1 & ((Word32) 1 << (var2 - 1))) != 0)
+ {
+ result++;
+ }
+ }
+ }
+ return (result);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: log2.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "log2.h"
+#include "basic_op.h"
+#include "log2_norm.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: log2()
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_x = input value of type Word32
+ pExponent = pointer to the integer part of Log2 of type Word16 whose
+ valid range is: 0 <= value <= 30
+ pFraction = pointer to the fractional part of Log2 of type Word16
+ whose valid range is: 0 <= value < 1
+ pOverflow = pointer to overflow flag
+
+
+ Outputs:
+ pExponent -> integer part of the newly calculated Log2
+ pFraction -> fractional part of the newly calculated Log2
+ pOverflow -> 1 if the log2() operation resulted in saturation
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes logarithm (base2) of the input L_x, where L_x is
+ positive. If L_x is negative or zero, the result is 0.
+
+ This function first normalizes the input L_x and calls the function Log2_norm
+ to calculate the logarithm.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] log2.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+OSCL_EXPORT_REF void Log2(
+ Word32 L_x, /* (i) : input value */
+ Word16 *pExponent, /* (o) : Integer part of Log2. (range: 0<=val<=30)*/
+ Word16 *pFraction, /* (o) : Fractional part of Log2. (range: 0<=val<1) */
+ Flag *pOverflow /* (i/o) : overflow flag */
+)
+{
+ Word16 exp;
+ Word32 result;
+ OSCL_UNUSED_ARG(pOverflow);
+
+ exp = norm_l(L_x);
+ result = L_x << exp;
+ Log2_norm(result, exp, pExponent, pFraction);
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: log2_norm.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "log2_norm.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Log2_norm
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_x = normalized input value of type Word32
+ exp = number of shifts required to normalize L_x; it is of type Word16
+ exponent = pointer to the integer part of Log2 (of type Word16)
+ whose valid range is: 0 <= value <= 30
+ fraction = pointer to the fractional part of Log2 (of type Word16)
+ whose valid range is: 0 <= value < 1
+
+ Outputs:
+ exponent points to the newly calculated integer part of Log2
+ fraction points to the newly calculated fractional part of Log2
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ table = Log2 table of constants of type Word16
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ The function Log2(L_x) calculates the logarithm of the normalized input
+ buffer L_x. The logarithm is approximated by a table and linear
+ interpolation. The following steps are used to compute Log2(L_x):
+
+ 1. exponent = 30 - norm_exponent
+ 2. i = bit25-b31 of L_x; 32<=i<=63 (because of normalization).
+ 3. a = bit10-b24
+ 4. i = i - 32
+ 5. fraction = table[i]<<16 - (table[i] - table[i+1]) * a * 2
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ log2.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Log2_norm (
+ Word32 L_x, // (i) : input value (normalized)
+ Word16 exp, // (i) : norm_l (L_x)
+ Word16 *exponent, // (o) : Integer part of Log2. (range: 0<=val<=30)
+ Word16 *fraction // (o) : Fractional part of Log2. (range: 0<=val<1)
+)
+{
+ Word16 i, a, tmp;
+ Word32 L_y;
+
+ if (L_x <= (Word32) 0)
+ {
+ *exponent = 0;
+ *fraction = 0;
+ return;
+ }
+
+ *exponent = sub (30, exp);
+
+ L_x = L_shr (L_x, 9);
+ i = extract_h (L_x); // Extract b25-b31
+ L_x = L_shr (L_x, 1);
+ a = extract_l (L_x); // Extract b10-b24 of fraction
+ a = a & (Word16) 0x7fff;
+
+ i = sub (i, 32);
+
+ L_y = L_deposit_h (table[i]); // table[i] << 16
+ tmp = sub (table[i], table[i + 1]); // table[i] - table[i+1]
+ L_y = L_msu (L_y, tmp, a); // L_y -= tmp*a*2
+
+ *fraction = extract_h (L_y);
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Log2_norm(
+ Word32 L_x, /* (i) : input value (normalized) */
+ Word16 exp, /* (i) : norm_l (L_x) */
+ Word16 *exponent, /* (o) : Integer part of Log2. (range: 0<=val<=30)*/
+ Word16 *fraction /* (o) : Fractional part of Log2. (range: 0<=val<1) */
+)
+{
+ Word16 i, a, tmp;
+ Word32 L_y;
+
+ if (L_x <= (Word32) 0)
+ {
+ *exponent = 0;
+ *fraction = 0;
+ }
+ else
+ {
+ /* Calculate exponent portion of Log2 */
+ *exponent = 30 - exp;
+
+ /* At this point, L_x > 0 */
+ /* Shift L_x to the right by 10 to extract bits 10-31, */
+ /* which is needed to calculate fractional part of Log2 */
+ L_x >>= 10;
+ i = (Word16)(L_x >> 15); /* Extract b25-b31 */
+ a = L_x & 0x7fff; /* Extract b10-b24 of fraction */
+
+ /* Calculate table index -> subtract by 32 is done for */
+ /* proper table indexing, since 32<=i<=63 (due to normalization) */
+ i -= 32;
+
+ /* Fraction part of Log2 is approximated by using table[] */
+ /* and linear interpolation, i.e., */
+ /* fraction = table[i]<<16 - (table[i] - table[i+1]) * a * 2 */
+ L_y = (Word32) log2_tbl[i] << 16; /* table[i] << 16 */
+ tmp = log2_tbl[i] - log2_tbl[i + 1]; /* table[i] - table[i+1] */
+ L_y -= (((Word32) tmp) * a) << 1; /* L_y -= tmp*a*2 */
+
+ *fraction = (Word16)(L_y >> 16);
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: log2_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the declaration for log2_tbl[] used by the log2() and
+ log2_norm() function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "log2_norm.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+
+ const Word16 log2_tbl[33] =
+ {
+ 0, 1455, 2866, 4236, 5568, 6863, 8124, 9352, 10549, 11716,
+ 12855, 13967, 15054, 16117, 17156, 18172, 19167, 20142, 21097, 22033,
+ 22951, 23852, 24735, 25603, 26455, 27291, 28113, 28922, 29716, 30497,
+ 31266, 32023, 32767
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] log2.tab, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: lsfwt.cpp
+ Functions: Lsf_wt
+
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsf -- Pointer to Word16 -- LSF vector
+
+ Outputs:
+ wf -- Pointer to Word16 -- square of weighting factors
+ pOverflow -- Pointer to type Flag -- Flag set when overflow occurs
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+Compute LSF weighting factors
+
+ d[i] = lsf[i+1] - lsf[i-1]
+
+ The weighting factors are approximated by two line segment
+
+ First segment passes by the following 2 points:
+
+ d[i] = 0Hz wf[i] = 3.347
+ d[i] = 450Hz wf[i] = 1.8
+
+ Second segment passes by the following 2 points:
+
+ d[i] = 450Hz wf[i] = 1.8
+ d[i] = 1500Hz wf[i] = 1.0
+
+ if( d[i] < 450Hz )
+ wf[i] = 3.347 - ( (3.347-1.8) / (450-0)) * d[i]
+ else
+ wf[i] = 1.8 - ( (1.8-1.0) / (1500-450)) * (d[i] - 450)
+
+
+ if( d[i] < 1843)
+ wf[i] = 3427 - (28160*d[i])>>15
+ else
+ wf[i] = 1843 - (6242*(d[i]-1843))>>15
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lsfwt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "lsfwt.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void Lsf_wt(
+ Word16 *lsf, /* input : LSF vector */
+ Word16 *wf, /* output: square of weighting factors */
+ Flag *pOverflow
+)
+{
+ Word16 temp;
+ Word16 wgt_fct;
+ Word16 i;
+ Word16 *p_wf = wf;
+ Word16 *p_lsf = &lsf[0];
+ Word16 *p_lsf_2 = &lsf[1];
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ /* wf[0] = lsf[1] - 0 */
+ *(p_wf++) = *(p_lsf_2++);
+
+ for (i = 4; i != 0 ; i--)
+ {
+ *(p_wf++) = *(p_lsf_2++) - *(p_lsf++);
+ *(p_wf++) = *(p_lsf_2++) - *(p_lsf++);
+ }
+ /*
+ * wf[9] = 4000 - lsf[8]
+ */
+ *(p_wf) = 16384 - *(p_lsf);
+
+ p_wf = wf;
+
+ for (i = 10; i != 0; i--)
+ {
+ /*
+ * (wf[i] - 450);
+ * 1843 == 450 Hz (Q15 considering 7FFF = 8000 Hz)
+ */
+ wgt_fct = *p_wf;
+ temp = wgt_fct - 1843;
+
+ if (temp > 0)
+ {
+ temp = (Word16)(((Word32)temp * 6242) >> 15);
+ wgt_fct = 1843 - temp;
+ }
+ else
+ {
+ temp = (Word16)(((Word32)wgt_fct * 28160) >> 15);
+ wgt_fct = 3427 - temp;
+ }
+
+ *(p_wf++) = wgt_fct << 3;
+
+ } /* for (i = 10; i != 0; i--) */
+
+ return;
+
+} /* Lsf_wt() */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: lsp.cpp
+ Functions:
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "lsp.h"
+#include "typedef.h"
+#include "q_plsf.h"
+#include "az_lsp.h"
+#include "int_lpc.h"
+#include "lsp_tab.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lsp_init (lspState **st)
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = Pointer to type lspState
+
+ Outputs:
+ st = Pointer to type lspState -- values are initialized.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ lsp_init_data = Word16 array.
+
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Initializes lsp state data.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lsp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF Word16 lsp_init(lspState **st)
+{
+ lspState* s;
+
+ if (st == (lspState **) NULL)
+ {
+ /* fprintf(stderr, "lsp_init: invalid parameter\n"); */
+ return -1;
+ }
+
+ *st = NULL;
+
+ /* allocate memory */
+ if ((s = (lspState *) oscl_malloc(sizeof(lspState))) == NULL)
+ {
+ /* fprintf(stderr, "lsp_init: can not malloc state structure\n"); */
+ return -1;
+ }
+
+ /* Initialize quantization state */
+ if (0 != Q_plsf_init(&s->qSt))
+ {
+ return -1;
+ }
+
+ if (0 != lsp_reset(s))
+ {
+ return -1;
+ }
+
+ *st = s;
+
+ return 0;
+}
+
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lsp_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = Pointer to type lspState
+
+ Outputs:
+ st = Pointer to type lspState -- values are reset.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ resets lsp_state data
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lsp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF Word16 lsp_reset(lspState *st)
+{
+
+ if (st == (lspState *) NULL)
+ {
+ /* fprintf(stderr, "lsp_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ /* Init lsp_old[] */
+ oscl_memcpy(st->lsp_old, lsp_init_data, M*sizeof(Word16));
+
+ /* Initialize lsp_old_q[] */
+ oscl_memcpy(st->lsp_old_q, st->lsp_old, M*sizeof(Word16));
+
+ /* Reset quantization state */
+ Q_plsf_reset(st->qSt);
+
+ return 0;
+}
+
+
+
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lsp_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = Pointer to type lspState
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Frees memory used by lspState.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lsp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF void lsp_exit(lspState **st)
+{
+ if (st == NULL || *st == NULL)
+ return;
+
+ /* Deallocate members */
+ Q_plsf_exit(&(*st)->qSt);
+
+ /* deallocate memory */
+ oscl_free(*st);
+ *st = NULL;
+
+ return;
+}
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lsp
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+
+ Inputs:
+ st = Pointer to type lspState -- State struct
+ req_mode = enum Mode -- requested coder mode
+ used_mode = enum Mode -- used coder mode
+ az = array of type Word16 -- interpolated LP parameters Q12
+
+ Outputs:
+ azQ = array of type Word16 -- quantization interpol. LP parameters Q12
+ lsp_new = array of type Word16 -- new lsp vector
+ anap = Double pointer of type Word16 -- analysis parameters
+ pOverflow = Pointer to type Flag -- Flag set when overflow occurs
+ st = Pointer to type lspState -- State struct
+ az = array of type Word16 -- interpolated LP parameters Q12
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lsp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF void lsp(lspState *st, /* i/o : State struct */
+ enum Mode req_mode, /* i : requested coder mode */
+ enum Mode used_mode,/* i : used coder mode */
+ Word16 az[], /* i/o : interpolated LP parameters Q12 */
+ Word16 azQ[], /* o : quantization interpol. LP parameters Q12*/
+ Word16 lsp_new[], /* o : new lsp vector */
+ Word16 **anap, /* o : analysis parameters */
+ Flag *pOverflow) /* o : Flag set when overflow occurs */
+
+{
+ Word16 lsp_new_q[M]; /* LSPs at 4th subframe */
+ Word16 lsp_mid[M], lsp_mid_q[M]; /* LSPs at 2nd subframe */
+
+ Word16 pred_init_i; /* init index for MA prediction in DTX mode */
+
+ if (req_mode == MR122)
+ {
+ Az_lsp(&az[MP1], lsp_mid, st->lsp_old, pOverflow);
+ Az_lsp(&az[MP1 * 3], lsp_new, lsp_mid, pOverflow);
+
+ /*--------------------------------------------------------------------*
+ * Find interpolated LPC parameters in all subframes (both quantized *
+ * and unquantized). *
+ * The interpolated parameters are in array A_t[] of size (M+1)*4 *
+ * and the quantized interpolated parameters are in array Aq_t[] *
+ *--------------------------------------------------------------------*/
+ Int_lpc_1and3_2(st->lsp_old, lsp_mid, lsp_new, az, pOverflow);
+
+ if (used_mode != MRDTX)
+ {
+ /* LSP quantization (lsp_mid[] and lsp_new[] jointly quantized) */
+ Q_plsf_5(
+ st->qSt,
+ lsp_mid,
+ lsp_new,
+ lsp_mid_q,
+ lsp_new_q,
+ *anap,
+ pOverflow);
+
+ Int_lpc_1and3(st->lsp_old_q, lsp_mid_q, lsp_new_q, azQ, pOverflow);
+
+ /* Advance analysis parameters pointer */
+ (*anap) += 5;
+ }
+ }
+ else
+ {
+ Az_lsp(&az[MP1 * 3], lsp_new, st->lsp_old, pOverflow); /* From A(z) to lsp */
+
+ /*--------------------------------------------------------------------*
+ * Find interpolated LPC parameters in all subframes (both quantized *
+ * and unquantized). *
+ * The interpolated parameters are in array A_t[] of size (M+1)*4 *
+ * and the quantized interpolated parameters are in array Aq_t[] *
+ *--------------------------------------------------------------------*/
+
+ Int_lpc_1to3_2(st->lsp_old, lsp_new, az, pOverflow);
+
+ if (used_mode != MRDTX)
+ {
+ /* LSP quantization */
+ Q_plsf_3(
+ st->qSt,
+ req_mode,
+ lsp_new,
+ lsp_new_q,
+ *anap,
+ &pred_init_i,
+ pOverflow);
+
+ Int_lpc_1to3(
+ st->lsp_old_q,
+ lsp_new_q,
+ azQ,
+ pOverflow);
+
+ /* Advance analysis parameters pointer */
+ (*anap) += 3;
+ }
+ }
+
+ /* update the LSPs for the next frame */
+ oscl_memcpy(st->lsp_old, lsp_new, M*sizeof(Word16));
+
+ if (used_mode != MRDTX)
+ {
+ oscl_memcpy(st->lsp_old_q, lsp_new_q, M*sizeof(Word16));
+ }
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: lsp_az.cpp
+ Functions: Get_lsp_pol
+ Lsp_Az
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains functions that convert line spectral pairs (LSP) to
+ linear predictive (LP) coefficients (filter order = 10). The functions
+ included in this file include Get_lsp_pol, which finds the coefficients of
+ F1(z) and F2(z), and Lsp_Az, which converts LSP to LPC by multiplying
+ F1(z) by 1+z^(-1) and F2(z) by 1-z^(-1), then calculating A(z) = (F1(z) +
+ F2(z))/2.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "lsp_az.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Get_lsp_pol
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsp = pointer to the buffer containing the line spectral pairs (LSP)
+ of type Word16
+ f = pointer to the polynomial of type Word32 to be generated
+
+ pOverflow = pointer set in case where one of the operations overflows.
+ [data type Pointer to Flag]
+
+ Outputs:
+ buffer pointed to by f contains the polynomial generated
+
+ pOverflow = pointer set in case where one of the operations overflows.
+ [data type Pointer to Flag]
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function finds the polynomial F1(z) or F2(z) from the LSPs. If the LSP
+ vector is passed at address 0, F1(z) is computed and if it is passed at
+ address 1, F2(z) is computed.
+
+ This is performed by expanding the product polynomials:
+
+ F1(z) = product ( 1 - 2 lsp[i] z^-1 + z^-2 )
+ i=0,2,4,6,8
+ F2(z) = product ( 1 - 2 lsp[i] z^-1 + z^-2 )
+ i=1,3,5,7,9
+
+ where lsp[] is the LSP vector in the cosine domain.
+
+ The expansion is performed using the following recursion:
+
+ f[0] = 1
+ b = -2.0 * lsp[0]
+ f[1] = b
+ for i=2 to 5 do
+ b = -2.0 * lsp[2*i-2];
+ for j=i-1 down to 2 do
+ f[j] = f[j] + b*f[j-1] + f[j-2];
+ f[1] = f[1] + b;
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lsp_az.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static void Get_lsp_pol (Word16 *lsp, Word32 *f)
+{
+ Word16 i, j, hi, lo;
+ Word32 t0;
+
+ // f[0] = 1.0;
+ *f = L_mult (4096, 2048);
+ f++;
+ *f = L_msu ((Word32) 0, *lsp, 512); // f[1] = -2.0 * lsp[0];
+ f++;
+ lsp += 2; // Advance lsp pointer
+
+ for (i = 2; i <= 5; i++)
+ {
+ *f = f[-2];
+
+ for (j = 1; j < i; j++, f--)
+ {
+ L_Extract (f[-1], &hi, &lo);
+ t0 = Mpy_32_16 (hi, lo, *lsp); // t0 = f[-1] * lsp
+ t0 = L_shl (t0, 1);
+ *f = L_add (*f, f[-2]); // *f += f[-2]
+ *f = L_sub (*f, t0); // *f -= t0
+ }
+ *f = L_msu (*f, *lsp, 512); // *f -= lsp<<9
+ f += i; // Advance f pointer
+ lsp += 2; // Advance lsp pointer
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void Get_lsp_pol(
+ Word16 *lsp,
+ Word32 *f,
+ Flag *pOverflow)
+{
+ register Word16 i;
+ register Word16 j;
+
+ Word16 hi;
+ Word16 lo;
+ Word32 t0;
+ OSCL_UNUSED_ARG(pOverflow);
+
+ /* f[0] = 1.0; */
+ *f++ = (Word32) 0x01000000;
+ *f++ = (Word32) - *(lsp++) << 10; /* f[1] = -2.0 * lsp[0]; */
+ lsp++; /* Advance lsp pointer */
+
+ for (i = 2; i <= 5; i++)
+ {
+ *f = *(f - 2);
+
+ for (j = 1; j < i; j++)
+ {
+ hi = (Word16)(*(f - 1) >> 16);
+
+ lo = (Word16)((*(f - 1) >> 1) - ((Word32) hi << 15));
+
+ t0 = ((Word32)hi * *lsp);
+ t0 += ((Word32)lo * *lsp) >> 15;
+
+ *(f) += *(f - 2); /* *f += f[-2] */
+ *(f--) -= t0 << 2; /* *f -= t0 */
+
+ }
+
+ *f -= (Word32)(*lsp++) << 10;
+
+ f += i;
+ lsp++;
+ }
+
+ return;
+}
+
+/****************************************************************************/
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Lsp_Az
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsp = pointer to the buffer containing the line spectral pairs (LSP)
+ of type Word16
+
+ a = pointer to the buffer containing Linear Predictive (LP)
+ coefficients of type Word16 to be generated
+
+ pOverflow = pointer set in case where one of the operations overflows.
+ [data type Pointer to Flag]
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ pOverflow = pointer set in case where one of the operations overflows.
+ [data type Pointer to Flag]
+
+ Pointers and Buffers Modified:
+ a buffer contains the generated Linear Predictive (LP) coefficients
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function converts from the line spectral pairs (LSP) to LP coefficients
+ for a 10th order filter.
+
+ This is done by:
+ (1) Find the coefficients of F1(z) and F2(z) (see Get_lsp_pol)
+ (2) Multiply F1(z) by 1+z^{-1} and F2(z) by 1-z^{-1}
+ (3) A(z) = ( F1(z) + F2(z) ) / 2
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lsp_az.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Lsp_Az (
+ Word16 lsp[], // (i) : line spectral frequencies
+ Word16 a[] // (o) : predictor coefficients (order = 10)
+)
+{
+ Word16 i, j;
+ Word32 f1[6], f2[6];
+ Word32 t0;
+
+ Get_lsp_pol (&lsp[0], f1);
+ Get_lsp_pol (&lsp[1], f2);
+
+ for (i = 5; i > 0; i--)
+ {
+ f1[i] = L_add (f1[i], f1[i - 1]); // f1[i] += f1[i-1];
+ f2[i] = L_sub (f2[i], f2[i - 1]); // f2[i] -= f2[i-1];
+ }
+
+ a[0] = 4096;
+ for (i = 1, j = 10; i <= 5; i++, j--)
+ {
+ t0 = L_add (f1[i], f2[i]); // f1[i] + f2[i]
+ a[i] = extract_l (L_shr_r (t0, 13));
+ t0 = L_sub (f1[i], f2[i]); // f1[i] - f2[i]
+ a[j] = extract_l (L_shr_r (t0, 13));
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Lsp_Az(
+ Word16 lsp[], /* (i) : line spectral frequencies */
+ Word16 a[], /* (o) : predictor coefficients (order = 10) */
+ Flag *pOverflow /* (o) : overflow flag */
+)
+{
+ register Word16 i;
+ register Word16 j;
+
+ Word32 f1[6];
+ Word32 f2[6];
+ Word32 t0;
+ Word32 t1;
+ Word16 *p_a = &a[0];
+ Word32 *p_f1;
+ Word32 *p_f2;
+
+ Get_lsp_pol(&lsp[0], f1, pOverflow);
+
+ Get_lsp_pol(&lsp[1], f2, pOverflow);
+
+ p_f1 = &f1[5];
+ p_f2 = &f2[5];
+
+ for (i = 5; i > 0; i--)
+ {
+ *(p_f1--) += f1[i-1];
+ *(p_f2--) -= f2[i-1];
+ }
+
+ *(p_a++) = 4096;
+ p_f1 = &f1[1];
+ p_f2 = &f2[1];
+
+ for (i = 1, j = 10; i <= 5; i++, j--)
+ {
+ t0 = *(p_f1) + *(p_f2); /* f1[i] + f2[i] */
+ t1 = *(p_f1++) - *(p_f2++); /* f1[i] - f2[i] */
+
+ t0 = t0 + ((Word32) 1 << 12);
+ t1 = t1 + ((Word32) 1 << 12);
+
+ *(p_a++) = (Word16)(t0 >> 13);
+ a[j] = (Word16)(t1 >> 13);
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: lsp_lsf.cpp
+ Functions: Lsp_lsf
+ Lsf_lsp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the functions that convert line spectral pairs (LSP) to
+ line spectral frequencies (LSF) and vice-versa.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "lsp_lsf.h"
+#include "basicop_malloc.h"
+#include "basic_op.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ extern const Word16 table[];
+ extern const Word16 slope[];
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Lsf_lsp
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsf = buffer containing normalized line spectral frequencies; valid
+ range is between 0 and 0.5 (Word16)
+ lsp = buffer containing line spectral pairs; valid range is between
+ -1 and 1 (Word16)
+ m = LPC order (Word16)
+
+ Outputs:
+ lsp contains the newly calculated line spectral pairs
+
+ Returns:
+ None
+
+ Global Variables Used:
+ table = cosine table
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the LSF to LSP transformation using the equation:
+
+ lsf[i] = arccos(lsp[i])/(2*pi)
+
+ The transformation from lsp[i] to lsf[i] is approximated by a look-up table
+ and interpolation.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lsp_lsf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Lsf_lsp (
+ Word16 lsf[], // (i) : lsf[m] normalized (range: 0.0<=val<=0.5)
+ Word16 lsp[], // (o) : lsp[m] (range: -1<=val<1)
+ Word16 m // (i) : LPC order
+)
+{
+ Word16 i, ind, offset;
+ Word32 L_tmp;
+
+ for (i = 0; i < m; i++)
+ {
+ ind = shr (lsf[i], 8); // ind = b8-b15 of lsf[i]
+ offset = lsf[i] & 0x00ff; // offset = b0-b7 of lsf[i]
+
+ // lsp[i] = table[ind]+ ((table[ind+1]-table[ind])*offset) / 256
+
+ L_tmp = L_mult (sub (table[ind + 1], table[ind]), offset);
+ lsp[i] = add (table[ind], extract_l (L_shr (L_tmp, 9)));
+
+ }
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Lsf_lsp(
+ Word16 lsf[], /* (i) : lsf[m] normalized (range: 0.0<=val<=0.5) */
+ Word16 lsp[], /* (o) : lsp[m] (range: -1<=val<1) */
+ Word16 m, /* (i) : LPC order */
+ Flag *pOverflow /* (o) : Flag set when overflow occurs */
+)
+{
+ Word16 i, ind, offset;
+ Word32 L_tmp;
+
+ for (i = 0; i < m; i++)
+ {
+ ind = lsf[i] >> 8; /* ind = b8-b15 of lsf[i] */
+ offset = lsf[i] & 0x00ff; /* offset = b0-b7 of lsf[i] */
+
+ /* lsp[i] = table[ind]+ ((table[ind+1]-table[ind])*offset) / 256 */
+
+ L_tmp = ((Word32)(table[ind + 1] - table[ind]) * offset) >> 8;
+ lsp[i] = table[ind] + (Word16) L_tmp;
+
+ }
+
+ return;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Lsp_lsf
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsp = buffer containing line spectral pairs; valid range is between
+ -1 and 1 (Word16)
+ lsf = buffer containing normalized line spectral frequencies; valid
+ range is between 0 and 0.5 (Word16)
+ m = LPC order (Word16)
+
+ Outputs:
+ lsf contains the newly calculated normalized line spectral frequencies
+
+ Returns:
+ None
+
+ Global Variables Used:
+ table = cosine table
+ slope = table to used to calculate inverse cosine
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the LSP to LSF transformation using the equation:
+
+ lsp[i] = cos(2*pi*lsf[i])
+
+ The transformation from lsf[i] to lsp[i] is approximated by a look-up table
+ and interpolation.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lsp_lsf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Lsp_lsf (
+ Word16 lsp[], // (i) : lsp[m] (range: -1<=val<1)
+ Word16 lsf[], // (o) : lsf[m] normalized (range: 0.0<=val<=0.5)
+ Word16 m // (i) : LPC order
+)
+{
+ Word16 i, ind;
+ Word32 L_tmp;
+
+ ind = 63; // begin at end of table -1
+
+ for (i = m - 1; i >= 0; i--)
+ {
+ // find value in table that is just greater than lsp[i]
+
+ while (sub (table[ind], lsp[i]) < 0)
+ {
+ ind--;
+
+ }
+
+ // acos(lsp[i])= ind*256 + ( ( lsp[i]-table[ind] ) *
+ slope[ind] )/4096
+
+ L_tmp = L_mult (sub (lsp[i], table[ind]), slope[ind]);
+ //(lsp[i]-table[ind])*slope[ind])>>12
+ lsf[i] = pv_round (L_shl (L_tmp, 3));
+ lsf[i] = add (lsf[i], shl (ind, 8));
+ }
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Lsp_lsf(
+ Word16 lsp[], /* (i) : lsp[m] (range: -1<=val<1) */
+ Word16 lsf[], /* (o) : lsf[m] normalized (range: 0.0<=val<=0.5) */
+ Word16 m, /* (i) : LPC order */
+ Flag *pOverflow /* (o) : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 ind;
+ Word16 temp;
+ Word32 L_tmp;
+ Word16 *p_lsp = &lsp[m-1];
+ Word16 *p_lsf = &lsf[m-1];
+ OSCL_UNUSED_ARG(pOverflow);
+
+ ind = 63; /* begin at end of table -1 */
+
+ for (i = m - 1; i >= 0; i--)
+ {
+ /* find value in table that is just greater than lsp[i] */
+ temp = *(p_lsp--);
+ while (table[ind] < temp)
+ {
+ ind--;
+ }
+
+ /* acos(lsp[i])= ind*256 + ( ( lsp[i]-table[ind] ) *
+ slope[ind] )/4096 */
+
+ L_tmp = (Word32)(temp - table[ind]) * slope[ind];
+
+ /*(lsp[i]-table[ind])*slope[ind])>>12*/
+ L_tmp = (L_tmp + 0x00000800) >> 12;
+
+ *(p_lsf--) = (Word16)(L_tmp) + (ind << 8);
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: lsp_lsf_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+
+ extern const Word16 table[];
+ const Word16 table[65] =
+ {
+ 32767, 32729, 32610, 32413, 32138, 31786, 31357, 30853,
+ 30274, 29622, 28899, 28106, 27246, 26320, 25330, 24279,
+ 23170, 22006, 20788, 19520, 18205, 16846, 15447, 14010,
+ 12540, 11039, 9512, 7962, 6393, 4808, 3212, 1608,
+ 0, -1608, -3212, -4808, -6393, -7962, -9512, -11039,
+ -12540, -14010, -15447, -16846, -18205, -19520, -20788, -22006,
+ -23170, -24279, -25330, -26320, -27246, -28106, -28899, -29622,
+ -30274, -30853, -31357, -31786, -32138, -32413, -32610, -32729,
+ (Word16) 0x8000
+ };
+
+ /* 0x8000 = -32768 (used to silence the compiler) */
+
+ /* slope used to compute y = acos(x) */
+
+ extern const Word16 slope[];
+ const Word16 slope[64] =
+ {
+ -26887, -8812, -5323, -3813, -2979, -2444, -2081, -1811,
+ -1608, -1450, -1322, -1219, -1132, -1059, -998, -946,
+ -901, -861, -827, -797, -772, -750, -730, -713,
+ -699, -687, -677, -668, -662, -657, -654, -652,
+ -652, -654, -657, -662, -668, -677, -687, -699,
+ -713, -730, -750, -772, -797, -827, -861, -901,
+ -946, -998, -1059, -1132, -1219, -1322, -1450, -1608,
+ -1811, -2081, -2444, -2979, -3813, -5323, -8812, -26887
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: lsp_tab.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ None
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ File : lsp.tab
+ Purpose : Table for lsp init
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "lsp_tab.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+ const Word16 lsp_init_data[M] =
+ {
+ 30000, 26000, 21000, 15000, 8000,
+ 0, -8000, -15000, -21000, -26000
+ };
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; Define all local variables
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Function body here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Return nothing or data or data pointer
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: mult_r.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Multiplication function with rounding and overflow control
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: mult_r
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the add operation resulted in overflow
+
+ Returns:
+ L_product_arr = 16-bit limited product of var1 and var2 (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the multiplication of var1 by var2 with rounding, and
+ gives a 16 bit result which is scaled, i.e.:
+ mult_r(var1,var2) = extract_l(L_shr(((var1 * var2) + 16384),15)) and |
+ mult_r(-32768,-32768) = 32767
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] mult_r() function in basicop2.c, UMTS GSM AMR speech codec, R99 -
+ Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 mult_r (Word16 var1, Word16 var2)
+{
+ Word16 var_out;
+ Word32 L_product_arr;
+
+ L_product_arr = (Word32) var1 *(Word32) var2;
+ L_product_arr += (Word32) 0x00004000L;
+ L_product_arr &= (Word32) 0xffff8000L;
+ L_product_arr >>= 15;
+
+ if (L_product_arr & (Word32) 0x00010000L)
+ {
+ L_product_arr |= (Word32) 0xffff0000L;
+ }
+* The reference ETSI code uses a global flag for Overflow inside the function
+* saturate(). In the actual implementation a pointer to Overflow flag is passed in
+* as a parameter to the function
+
+ var_out = saturate (L_product_arr);
+
+#if (WMOPS)
+ multiCounter[currCounter].mult_r++;
+#endif
+
+ return (var_out);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+OSCL_EXPORT_REF Word16 mult_r(Word16 var1, Word16 var2, Flag *pOverflow)
+{
+
+ register Word32 L_product_arr;
+
+ L_product_arr = ((Word32) var1) * var2; /* product */
+ L_product_arr += (Word32) 0x00004000L; /* round */
+ L_product_arr >>= 15; /* shift */
+
+ /* sign extend when necessary */
+ L_product_arr |= (Word32) - (L_product_arr & (Word32) 0x00010000L);
+
+ /* Saturate result (if necessary). */
+ /* Replaced function call with in-line code to conserve MIPS, */
+ /* i.e., var_out = saturate (L_product_arr) */
+
+ if (L_product_arr > 0X00007fffL)
+ {
+ *pOverflow = 1;
+ L_product_arr = MAX_16;
+ }
+ else if (L_product_arr < (Word32) 0xffff8000L)
+ {
+ *pOverflow = 1;
+ L_product_arr = MIN_16;
+ }
+
+ return ((Word16) L_product_arr);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: negate.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ var1 = negated value of input (Word16)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function negates var1 with saturation; saturate in the case where input
+ is -32768: negate(var1) = sub(0,var1).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 negate (Word16 var1)
+{
+ Word16 var_out;
+
+ var_out = (var1 == MIN_16) ? MAX_16 : -var1;
+#if (WMOPS)
+ multiCounter[currCounter].negate++;
+#endif
+ return (var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "negate.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word16 negate(register Word16 var1)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+ var1 = (var1 == MIN_16) ? MAX_16 : -var1;
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+ return (var1);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: norm_l.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= var1 <= 0x7fff ffff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ var_out = number of left shifts need to normalize input (Word16)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function produces the number of left shifts needed to normalize the 32
+ bit variable L_var1 for positive values on the interval with minimum of
+ 0x40000000 and maximum of 0x7fffffff, and for negative values on the interval
+ with minimum of 0x80000000 and maximum of 0xc0000000. Note that when L_var1
+ is equal to zero, the output var_out is set to zero.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 norm_l (Word32 L_var1)
+{
+ Word16 var_out;
+
+ if (L_var1 == 0)
+ {
+ var_out = 0;
+ }
+ else
+ {
+ if (L_var1 == (Word32) 0xffffffffL)
+ {
+ var_out = 31;
+ }
+ else
+ {
+ if (L_var1 < 0)
+ {
+ L_var1 = ~L_var1;
+ }
+ for (var_out = 0; L_var1 < (Word32) 0x40000000L; var_out++)
+ {
+ L_var1 <<= 1;
+ }
+ }
+ }
+
+#if (WMOPS)
+ multiCounter[currCounter].norm_l++;
+#endif
+ return (var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+#if !( defined(PV_ARM_V5) || defined(PV_ARM_GCC_V5) )
+OSCL_EXPORT_REF Word16 norm_l(register Word32 L_var1)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+ register Word16 var_out = 0;
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+
+ if (L_var1)
+ {
+
+ Word32 y = L_var1 - (L_var1 < 0);
+ L_var1 = y ^(y >> 31);
+
+
+ while (!(0x40000000L & L_var1))
+ {
+ var_out++;
+ if ((0x20000000L & L_var1))
+ {
+ break;
+ }
+ var_out++;
+ if ((0x10000000L & L_var1))
+ {
+ break;
+ }
+ var_out++;
+ if ((0x08000000L & L_var1))
+ {
+ break;
+ }
+ var_out++;
+ L_var1 <<= 4;
+ }
+ }
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+
+
+ return (var_out);
+}
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: norm_s.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit signed integer of type Word16, whose value falls
+ in the range: 0x8000 <= var1 <= 0x7fff
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ var_out = number of left shifts need to normalize var1 (Word16)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function produces the number of left shifts needed to normalize the 16
+ bit variable var1 for positive values on the interval with minimum of 0x4000
+ and maximum of 0x7fff, and for negative values on the interval with minimum
+ of 0x8000 and maximum of 0xc000. Note that when var1 is zero, the resulting
+ output var_out is set to zero.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 norm_s (Word16 var1)
+{
+ Word16 var_out;
+
+ if (var1 == 0)
+ {
+ var_out = 0;
+ }
+ else
+ {
+ if (var1 == (Word16) 0xffff)
+ {
+ var_out = 15;
+ }
+ else
+ {
+ if (var1 < 0)
+ {
+ var1 = ~var1;
+ }
+ for (var_out = 0; var1 < 0x4000; var_out++)
+ {
+ var1 <<= 1;
+ }
+ }
+ }
+
+#if (WMOPS)
+ multiCounter[currCounter].norm_s++;
+#endif
+ return (var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+#if !( defined(PV_ARM_V5) || defined(PV_ARM_GCC_V5) )
+
+OSCL_EXPORT_REF Word16 norm_s(register Word16 var1)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+
+ register Word16 var_out = 0;
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+
+ if (var1)
+ {
+ Word16 y = var1 - (var1 < 0);
+ var1 = y ^(y >> 15);
+
+ while (!(0x4000 & var1))
+ {
+ var_out++;
+ if ((0x2000 & var1))
+ {
+ break;
+ }
+ var_out++;
+ if ((0x1000 & var1))
+ {
+ break;
+ }
+ var_out++;
+ if ((0x0800 & var1))
+ {
+ break;
+ }
+ var_out++;
+ var1 <<= 4;
+ }
+ }
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+ return (var_out);
+}
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: overflow_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the declaration for overflow_tbl[] used by the l_shl()
+ and l_shr() functions.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+ const Word32 overflow_tbl [32] = {0x7fffffffL, 0x3fffffffL,
+ 0x1fffffffL, 0x0fffffffL,
+ 0x07ffffffL, 0x03ffffffL,
+ 0x01ffffffL, 0x00ffffffL,
+ 0x007fffffL, 0x003fffffL,
+ 0x001fffffL, 0x000fffffL,
+ 0x0007ffffL, 0x0003ffffL,
+ 0x0001ffffL, 0x0000ffffL,
+ 0x00007fffL, 0x00003fffL,
+ 0x00001fffL, 0x00000fffL,
+ 0x000007ffL, 0x000003ffL,
+ 0x000001ffL, 0x000000ffL,
+ 0x0000007fL, 0x0000003fL,
+ 0x0000001fL, 0x0000000fL,
+ 0x00000007L, 0x00000003L,
+ 0x00000001L, 0x00000000L
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] l_shl() function in basic_op2.c, UMTS GSM AMR speech codec, R99 -
+ Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: ph_disp_tab.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the table of impulse responses of the phase dispersion
+ filters. All impulse responses are in Q15
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+ extern const Word16 ph_imp_low_MR795[];
+ const Word16 ph_imp_low_MR795[40] =
+ {
+ 26777, 801, 2505, -683, -1382, 582, 604, -1274, 3511, -5894,
+ 4534, -499, -1940, 3011, -5058, 5614, -1990, -1061, -1459, 4442,
+ -700, -5335, 4609, 452, -589, -3352, 2953, 1267, -1212, -2590,
+ 1731, 3670, -4475, -975, 4391, -2537, 949, -1363, -979, 5734
+ };
+ extern const Word16 ph_imp_mid_MR795[];
+ const Word16 ph_imp_mid_MR795[40] =
+ {
+ 30274, 3831, -4036, 2972, -1048, -1002, 2477, -3043, 2815, -2231,
+ 1753, -1611, 1714, -1775, 1543, -1008, 429, -169, 472, -1264,
+ 2176, -2706, 2523, -1621, 344, 826, -1529, 1724, -1657, 1701,
+ -2063, 2644, -3060, 2897, -1978, 557, 780, -1369, 842, 655
+ };
+
+ extern const Word16 ph_imp_low[];
+ const Word16 ph_imp_low[40] =
+ {
+ 14690, 11518, 1268, -2761, -5671, 7514, -35, -2807, -3040, 4823,
+ 2952, -8424, 3785, 1455, 2179, -8637, 8051, -2103, -1454, 777,
+ 1108, -2385, 2254, -363, -674, -2103, 6046, -5681, 1072, 3123,
+ -5058, 5312, -2329, -3728, 6924, -3889, 675, -1775, 29, 10145
+ };
+ extern const Word16 ph_imp_mid[];
+ const Word16 ph_imp_mid[40] =
+ {
+ 30274, 3831, -4036, 2972, -1048, -1002, 2477, -3043, 2815, -2231,
+ 1753, -1611, 1714, -1775, 1543, -1008, 429, -169, 472, -1264,
+ 2176, -2706, 2523, -1621, 344, 826, -1529, 1724, -1657, 1701,
+ -2063, 2644, -3060, 2897, -1978, 557, 780, -1369, 842, 655
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] ph_disp.tab, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: pow2.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pow2.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pow2
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ exponent = Integer part whose valid range is: 0 <= value <= 30 (Word16)
+ fraction = Fractional part whose valid range is 0 <= value < 1
+
+ pOverflow = pointer to overflow flag
+
+ Outputs:
+ L_x = Result of the Pow2() computation (Word32)
+ pOverflow -> 1 if the Pow2() function results in saturation
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes L_x = pow(2.0, exponent.fraction)
+
+ The function Pow2(L_x) is approximated by a table and linear interpolation.
+
+ 1- i = bit10-b15 of fraction, 0 <= i <= 31
+ 2- a = bit0-b9 of fraction
+ 3- L_x = table[i]<<16 - (table[i] - table[i+1]) * a * 2
+ 4- L_x = L_x >> (30-exponent) (with rounding)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pow2.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word32 Pow2 ( // (o) : result (range: 0<=val<=0x7fffffff)
+ Word16 exponent, // (i) : Integer part. (range: 0<=val<=30)
+ Word16 fraction // (i) : Fractional part. (range: 0.0<=val<1.0)
+)
+{
+ Word16 exp, i, a, tmp;
+ Word32 L_x;
+
+ L_x = L_mult (fraction, 32); // L_x = fraction<<6
+ i = extract_h (L_x); // Extract b10-b16 of fraction
+ L_x = L_shr (L_x, 1);
+ a = extract_l (L_x); // Extract b0-b9 of fraction
+ a = a & (Word16) 0x7fff;
+
+ L_x = L_deposit_h (table[i]); // table[i] << 16
+ tmp = sub (table[i], table[i + 1]); // table[i] - table[i+1]
+ L_x = L_msu (L_x, tmp, a); // L_x -= tmp*a*2
+
+ exp = sub (30, exponent);
+ L_x = L_shr_r (L_x, exp);
+
+ return (L_x);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+OSCL_EXPORT_REF Word32 Pow2( /* (o) : result (range: 0<=val<=0x7fffffff) */
+ Word16 exponent, /* (i) : Integer part. (range: 0<=val<=30) */
+ Word16 fraction, /* (i) : Fractional part. (range: 0.0<=val<1.0) */
+ Flag *pOverflow
+)
+{
+ Word16 exp, i, a, tmp;
+ Word32 L_x;
+
+ L_x = L_mult(fraction, 32, pOverflow); /* L_x = fraction<<6 */
+
+ /* Extract b0-b16 of fraction */
+
+ i = ((Word16)(L_x >> 16)) & 31; /* ensure index i is bounded */
+ a = (Word16)((L_x >> 1) & 0x7fff);
+
+ L_x = ((Word32) pow2_tbl[i] << 16); /* pow2_tbl[i] << 16 */
+
+ /* pow2_tbl[i] - pow2_tbl[i+1] */
+ tmp = pow2_tbl[i] - pow2_tbl[i + 1];
+ L_x = L_msu(L_x, tmp, a, pOverflow); /* L_x -= tmp*a*2 */
+
+ exp = 30 - exponent;
+ L_x = L_shr_r(L_x, exp, pOverflow);
+
+ return (L_x);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: pow2_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the declaration for log2_tbl[] used by the Pow2() function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pow2.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+
+ const Word16 pow2_tbl[33] =
+ {
+ 16384, 16743, 17109, 17484, 17867, 18258, 18658, 19066, 19484, 19911,
+ 20347, 20792, 21247, 21713, 22188, 22674, 23170, 23678, 24196, 24726,
+ 25268, 25821, 26386, 26964, 27554, 28158, 28774, 29405, 30048, 30706,
+ 31379, 32066, 32767
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] pow2.tab, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: pred_lt.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pred_lt.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define UP_SAMP_MAX 6
+#define L_INTER10 (L_INTERPOL-1)
+#define FIR_SIZE (UP_SAMP_MAX*L_INTER10+1)
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/* 1/6 resolution interpolation filter (-3 dB at 3600 Hz) */
+/* Note: the 1/3 resolution filter is simply a subsampled
+ * version of the 1/6 resolution filter, i.e. it uses
+ * every second coefficient:
+ *
+ * inter_3l[k] = inter_6[2*k], 0 <= k <= 3*L_INTER10
+ */
+
+const Word16 inter_6_pred_lt[FIR_SIZE] =
+{
+ 29443,
+ 28346, 25207, 20449, 14701, 8693, 3143,
+ -1352, -4402, -5865, -5850, -4673, -2783,
+ -672, 1211, 2536, 3130, 2991, 2259,
+ 1170, 0, -1001, -1652, -1868, -1666,
+ -1147, -464, 218, 756, 1060, 1099,
+ 904, 550, 135, -245, -514, -634,
+ -602, -451, -231, 0, 191, 308,
+ 340, 296, 198, 78, -36, -120,
+ -163, -165, -132, -79, -19, 34,
+ 73, 91, 89, 70, 38, 0
+};
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pred_lt_3or6
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ exc = buffer containing the excitation (Word16)
+ T0 = integer pitch lag (Word16)
+ frac = fraction of lag (Word16)
+ L_subfr = number of samples per subframe (Word16)
+ flag3 = flag to indicate the upsampling rate; if set, upsampling
+ rate is 3, otherwise, upsampling rate is 6 (Word16)
+
+ pOverflow = pointer to overflow (Flag)
+
+ Returns:
+ None
+
+ Outputs:
+ exc buffer contains the newly formed adaptive codebook excitation
+ pOverflow -> 1 if the add operation resulted in overflow
+
+ Global Variables Used:
+ inter_6_pred_lt = (1/6) resolution interpolation filter table (Word16)
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes the result of long term prediction with fractional
+ interpolation of resolution 1/3 or 1/6. (Interpolated past excitation).
+
+ The past excitation signal at the given delay is interpolated at
+ the given fraction to build the adaptive codebook excitation.
+ On return exc[0..L_subfr-1] contains the interpolated signal
+ (adaptive codebook excitation).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pred_lt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Pred_lt_3or6 (
+ Word16 exc[], // in/out: excitation buffer
+ Word16 T0, // input : integer pitch lag
+ Word16 frac, // input : fraction of lag
+ Word16 L_subfr, // input : subframe size
+ Word16 flag3 // input : if set, upsampling rate = 3 (6 otherwise)
+)
+{
+ Word16 i, j, k;
+ Word16 *pX0, *pX1, *pX2;
+ const Word16 *pC1, *pC2;
+ Word32 s;
+
+ pX0 = &exc[-T0];
+
+ frac = negate (frac);
+ if (flag3 != 0)
+ {
+ frac = shl (frac, 1); // inter_3l[k] = inter_6[2*k] -> k' = 2*k
+ }
+
+ if (frac < 0)
+ {
+ frac = add (frac, UP_SAMP_MAX);
+ pX0--;
+ }
+
+ for (j = 0; j < L_subfr; j++)
+ {
+ pX1 = pX0++;
+ pX2 = pX0;
+ pC1 = &inter_6[frac];
+ pC2 = &inter_6[sub (UP_SAMP_MAX, frac)];
+
+ s = 0;
+ for (i = 0, k = 0; i < L_INTER10; i++, k += UP_SAMP_MAX)
+ {
+ s = L_mac (s, pX1[-i], pC1[k]);
+ s = L_mac (s, pX2[i], pC2[k]);
+ }
+
+ exc[j] = pv_round (s);
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Pred_lt_3or6(
+ Word16 exc[], /* in/out: excitation buffer */
+ Word16 T0, /* input : integer pitch lag */
+ Word16 frac, /* input : fraction of lag */
+ Word16 L_subfr, /* input : subframe size */
+ Word16 flag3, /* input : if set, upsampling rate = 3 (6 otherwise) */
+ Flag *pOverflow /* output: if set, overflow occurred in this function */
+)
+{
+ register Word16 i;
+ register Word16 j;
+ register Word16 k;
+
+ Word16 *pX0;
+ Word16 *pX2;
+ Word16 *pX3;
+ Word16 *p_exc;
+ Word16 *pC1;
+ const Word16 *pC1_ref;
+ const Word16 *pC2_ref;
+
+ Word16 Coeff_1[(L_INTER10<<1)];
+
+ Word32 s1;
+ Word32 s2;
+ OSCL_UNUSED_ARG(pOverflow);
+
+ pX0 = &(exc[-T0]);
+
+ /* frac goes between -3 and 3 */
+
+ frac = -frac;
+
+ if (flag3 != 0)
+ {
+ frac <<= 1; /* inter_3l[k] = inter_6[2*k] -> k' = 2*k */
+ }
+
+ if (frac < 0)
+ {
+ frac += UP_SAMP_MAX;
+ pX0--;
+ }
+
+ pC1_ref = &inter_6_pred_lt[frac];
+ pC2_ref = &inter_6_pred_lt[UP_SAMP_MAX-frac];
+
+
+ pC1 = Coeff_1;
+
+ k = 0;
+
+ for (i = L_INTER10 >> 1; i > 0; i--)
+ {
+ *(pC1++) = pC1_ref[k];
+ *(pC1++) = pC2_ref[k];
+ k += UP_SAMP_MAX;
+ *(pC1++) = pC1_ref[k];
+ *(pC1++) = pC2_ref[k];
+ k += UP_SAMP_MAX;
+
+ }
+
+ p_exc = exc;
+
+ for (j = (L_subfr >> 1); j != 0 ; j--)
+ {
+ pX0++;
+ pX2 = pX0;
+ pX3 = pX0++;
+
+ pC1 = Coeff_1;
+
+ s1 = 0x00004000L;
+ s2 = 0x00004000L;
+
+ for (i = L_INTER10 >> 1; i > 0; i--)
+ {
+ s2 += ((Word32) * (pX3--)) * *(pC1);
+ s1 += ((Word32) * (pX3)) * *(pC1++);
+ s1 += ((Word32) * (pX2++)) * *(pC1);
+ s2 += ((Word32) * (pX2)) * *(pC1++);
+ s2 += ((Word32) * (pX3--)) * *(pC1);
+ s1 += ((Word32) * (pX3)) * *(pC1++);
+ s1 += ((Word32) * (pX2++)) * *(pC1);
+ s2 += ((Word32) * (pX2)) * *(pC1++);
+
+ } /* for (i = L_INTER10>>1; i > 0; i--) */
+
+ *(p_exc++) = (Word16)(s1 >> 15);
+ *(p_exc++) = (Word16)(s2 >> 15);
+
+ } /* for (j = (L_subfr>>1); j != 0 ; j--) */
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : q_plsf.c
+* Purpose : common part (init, exit, reset) of LSF quantization
+* module (rest in q_plsf_3.c and q_plsf_5.c)
+*
+********************************************************************************
+*/
+
+/*
+********************************************************************************
+* MODULE INCLUDE FILE AND VERSION ID
+********************************************************************************
+*/
+#include "q_plsf.h"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+#include "basic_op.h"
+#include "oscl_mem.h"
+
+
+/*
+********************************************************************************
+* PUBLIC PROGRAM CODE
+********************************************************************************
+*/
+
+/*
+**************************************************************************
+*
+* Function : Q_plsf_init
+* Purpose : Allocates memory and initializes state variables
+*
+**************************************************************************
+*/
+Word16 Q_plsf_init(Q_plsfState **state)
+{
+ Q_plsfState* s;
+
+ if (state == (Q_plsfState **) NULL)
+ {
+ /* fprintf(stderr, "Q_plsf_init: invalid parameter\n"); */
+ return -1;
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (Q_plsfState *) oscl_malloc(sizeof(Q_plsfState))) == NULL)
+ {
+ /* fprintf(stderr, "Q_plsf_init: can not malloc state structure\n"); */
+ return -1;
+ }
+
+ Q_plsf_reset(s);
+ *state = s;
+
+ return 0;
+}
+
+/*
+**************************************************************************
+*
+* Function : Q_plsf_reset
+* Purpose : Resets state memory
+*
+**************************************************************************
+*/
+Word16 Q_plsf_reset(Q_plsfState *state)
+{
+ Word16 i;
+
+ if (state == (Q_plsfState *) NULL)
+ {
+ /* fprintf(stderr, "Q_plsf_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ for (i = 0; i < M; i++)
+ state->past_rq[i] = 0;
+
+ return 0;
+}
+
+/*
+**************************************************************************
+*
+* Function : Q_plsf_exit
+* Purpose : The memory used for state memory is freed
+*
+**************************************************************************
+*/
+void Q_plsf_exit(Q_plsfState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: q_plsf_3.cpp
+ Funtions: Vq_subvec4
+ Test_Vq_subvec4
+ Vq_subvec3
+ Test_Vq_subvec3
+ Q_plsf_3
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the functions that perform the quantization of LSF
+ parameters with first order MA prediction and split by 3 vector
+ quantization (split-VQ).
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "q_plsf.h"
+#include "typedef.h"
+#include "lsp_lsf.h"
+#include "reorder.h"
+#include "lsfwt.h"
+#include "oscl_mem.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+#define PAST_RQ_INIT_SIZE 8
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ /* Codebooks of LSF prediction residual */
+ extern const Word16 mean_lsf_3[];
+
+ extern const Word16 pred_fac_3[];
+
+ extern const Word16 dico1_lsf_3[];
+ extern const Word16 dico2_lsf_3[];
+ extern const Word16 dico3_lsf_3[];
+
+ extern const Word16 mr515_3_lsf[];
+ extern const Word16 mr795_1_lsf[];
+
+ extern const Word16 past_rq_init[];
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Vq_subvec4
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsf_r1 = pointer to the first LSF residual vector (Q15) (Word16)
+ dico = pointer to the quantization codebook (Q15) (const Word16)
+ wf1 = pointer to the first LSF weighting factor (Q13) (Word16)
+ dico_size = size of quantization codebook (Q0) (Word16)
+
+ Outputs:
+ buffer pointed to by lsf_r1 contains the selected vector
+ pOverflow -- pointer to Flag -- Flag set when overflow occurs
+
+ Returns:
+ index = quantization index (Q0) (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the quantization of a 4-dimensional subvector.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ q_plsf_3.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static Word16
+Vq_subvec4( // o: quantization index, Q0
+ Word16 * lsf_r1, // i: 1st LSF residual vector, Q15
+ Word16 * dico, // i: quantization codebook, Q15
+ Word16 * wf1, // i: 1st LSF weighting factors, Q13
+ Word16 dico_size) // i: size of quantization codebook, Q0
+{
+ Word16 i, index = 0;
+ Word16 *p_dico, temp;
+ Word32 dist_min, dist;
+
+ dist_min = MAX_32;
+ p_dico = dico;
+
+ for (i = 0; i < dico_size; i++)
+ {
+ temp = sub (lsf_r1[0], *p_dico++);
+ temp = mult (wf1[0], temp);
+ dist = L_mult (temp, temp);
+
+ temp = sub (lsf_r1[1], *p_dico++);
+ temp = mult (wf1[1], temp);
+ dist = L_mac (dist, temp, temp);
+
+ temp = sub (lsf_r1[2], *p_dico++);
+ temp = mult (wf1[2], temp);
+ dist = L_mac (dist, temp, temp);
+
+ temp = sub (lsf_r1[3], *p_dico++);
+ temp = mult (wf1[3], temp);
+ dist = L_mac (dist, temp, temp);
+
+
+ if (L_sub (dist, dist_min) < (Word32) 0)
+ {
+ dist_min = dist;
+ index = i;
+ }
+ }
+
+ // Reading the selected vector
+
+ p_dico = &dico[shl (index, 2)];
+ lsf_r1[0] = *p_dico++;
+ lsf_r1[1] = *p_dico++;
+ lsf_r1[2] = *p_dico++;
+ lsf_r1[3] = *p_dico;
+
+ return index;
+
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 Vq_subvec4( /* o: quantization index, Q0 */
+ Word16 * lsf_r1, /* i: 1st LSF residual vector, Q15 */
+ const Word16 * dico, /* i: quantization codebook, Q15 */
+ Word16 * wf1, /* i: 1st LSF weighting factors, Q13 */
+ Word16 dico_size, /* i: size of quantization codebook, Q0 */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ register Word16 i;
+ Word16 temp;
+ const Word16 *p_dico;
+ Word16 index = 0;
+ Word32 dist_min;
+ Word32 dist;
+
+ Word16 lsf_r1_0;
+ Word16 lsf_r1_1;
+ Word16 lsf_r1_2;
+ Word16 lsf_r1_3;
+
+ Word16 wf1_0;
+ Word16 wf1_1;
+ Word16 wf1_2;
+ Word16 wf1_3;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ dist_min = MAX_32;
+ p_dico = dico;
+
+ lsf_r1_0 = lsf_r1[0];
+ lsf_r1_1 = lsf_r1[1];
+ lsf_r1_2 = lsf_r1[2];
+ lsf_r1_3 = lsf_r1[3];
+
+ wf1_0 = wf1[0];
+ wf1_1 = wf1[1];
+ wf1_2 = wf1[2];
+ wf1_3 = wf1[3];
+
+ for (i = 0; i < dico_size; i++)
+ {
+ temp = lsf_r1_0 - (*p_dico++);
+ temp = (Word16)((((Word32) wf1_0) * temp) >> 15);
+ dist = ((Word32) temp) * temp;
+
+ temp = lsf_r1_1 - (*p_dico++);
+ temp = (Word16)((((Word32) wf1_1) * temp) >> 15);
+ dist += ((Word32) temp) * temp;
+
+ temp = lsf_r1_2 - (*p_dico++);
+ temp = (Word16)((((Word32) wf1_2) * temp) >> 15);
+ dist += ((Word32) temp) * temp;
+
+ temp = lsf_r1_3 - (*p_dico++);
+ temp = (Word16)((((Word32) wf1_3) * temp) >> 15);
+ dist += ((Word32) temp) * temp;
+
+ if (dist < dist_min)
+ {
+ dist_min = dist;
+ index = i;
+ }
+ }
+
+ /* Reading the selected vector */
+
+ p_dico = dico + (index << 2);
+ *lsf_r1++ = *p_dico++;
+ *lsf_r1++ = *p_dico++;
+ *lsf_r1++ = *p_dico++;
+ *lsf_r1 = *p_dico;
+
+ return(index);
+
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Test_Vq_subvec4
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsf_r1 = pointer to the first LSF residual vector (Q15) (Word16)
+ dico = pointer to the quantization codebook (Q15) (const Word16)
+ wf1 = pointer to the first LSF weighting factor (Q13) (Word16)
+ dico_size = size of quantization codebook (Q0) (Word16)
+
+ Outputs:
+ buffer pointed to by lsf_r1 contains the selected vector
+ pOverflow -- pointer to Flag -- Flag set when overflow occurs
+
+ Returns:
+ index = quantization index (Q0) (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calls the static function Vq_subvec4. It is used for testing
+ purposes only
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+ CALL Vq_subvec4(lsf_r1 = lsf_r1
+ dico = dico
+ wf1 = wf1
+ dico_size = dico_size)
+ MODIFYING(nothing)
+ RETURNING(index = tst_index4)
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Test_Vq_subvec4(
+ Word16 * lsf_r1,
+ const Word16 * dico,
+ Word16 * wf1,
+ Word16 dico_size,
+ Flag *pOverflow)
+{
+ Word16 tst_index4 = 0;
+
+ /*------------------------------------------------------------------------
+ CALL Vq_subvec4(lsf_r1 = lsf_r1
+ dico = dico
+ wf1 = wf1
+ dico_size = dico_size)
+ MODIFYING(nothing)
+ RETURNING(index = index)
+ ------------------------------------------------------------------------*/
+ tst_index4 =
+ Vq_subvec4(
+ lsf_r1,
+ dico,
+ wf1,
+ dico_size,
+ pOverflow);
+
+ return(tst_index4);
+
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Vq_subvec3
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsf_r1 = pointer to the first LSF residual vector (Q15) (Word16)
+ dico = pointer to the quantization codebook (Q15) (const Word16)
+ wf1 = pointer to the first LSF weighting factor (Q13) (Word16)
+ dico_size = size of quantization codebook (Q0) (Word16)
+ use_half = flag to indicate use of every second entry in the
+ codebook (Flag)
+
+ Outputs:
+ buffer pointed to by lsf_r1 contains the selected vector
+ pOverflow -- pointer to Flag -- Flag set when overflow occurs
+
+ Returns:
+ index = quantization index (Q0) (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the quantization of a 3 dimensional subvector.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ q_plsf_3.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static Word16
+Vq_subvec3( // o: quantization index, Q0
+ Word16 * lsf_r1, // i: 1st LSF residual vector, Q15
+ Word16 * dico, // i: quantization codebook, Q15
+ Word16 * wf1, // i: 1st LSF weighting factors, Q13
+ Word16 dico_size, // i: size of quantization codebook, Q0
+ Flag use_half) // i: use every second entry in codebook
+{
+ Word16 i, index = 0;
+ Word16 *p_dico, temp;
+ Word32 dist_min, dist;
+
+ dist_min = MAX_32;
+ p_dico = dico;
+
+ if (use_half == 0) {
+ for (i = 0; i < dico_size; i++)
+ {
+ temp = sub(lsf_r1[0], *p_dico++);
+ temp = mult(wf1[0], temp);
+ dist = L_mult(temp, temp);
+
+ temp = sub(lsf_r1[1], *p_dico++);
+ temp = mult(wf1[1], temp);
+ dist = L_mac(dist, temp, temp);
+
+ temp = sub(lsf_r1[2], *p_dico++);
+ temp = mult(wf1[2], temp);
+ dist = L_mac(dist, temp, temp);
+
+ if (L_sub(dist, dist_min) < (Word32) 0) {
+ dist_min = dist;
+ index = i;
+ }
+ }
+ p_dico = &dico[add(index, add(index, index))];
+ }
+ else
+ {
+ for (i = 0; i < dico_size; i++)
+ {
+ temp = sub(lsf_r1[0], *p_dico++);
+ temp = mult(wf1[0], temp);
+ dist = L_mult(temp, temp);
+
+ temp = sub(lsf_r1[1], *p_dico++);
+ temp = mult(wf1[1], temp);
+ dist = L_mac(dist, temp, temp);
+
+ temp = sub(lsf_r1[2], *p_dico++);
+ temp = mult(wf1[2], temp);
+ dist = L_mac(dist, temp, temp);
+
+ if (L_sub(dist, dist_min) < (Word32) 0)
+ {
+ dist_min = dist;
+ index = i;
+ }
+ p_dico = p_dico + 3; add(0,0);
+ }
+ p_dico = &dico[shl(add(index, add(index, index)),1)];
+ }
+
+
+ // Reading the selected vector
+ lsf_r1[0] = *p_dico++;
+ lsf_r1[1] = *p_dico++;
+ lsf_r1[2] = *p_dico++;
+
+ return index;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 Vq_subvec3( /* o: quantization index, Q0 */
+ Word16 * lsf_r1, /* i: 1st LSF residual vector, Q15 */
+ const Word16 * dico, /* i: quantization codebook, Q15 */
+ Word16 * wf1, /* i: 1st LSF weighting factors, Q13 */
+ Word16 dico_size, /* i: size of quantization codebook, Q0 */
+ Flag use_half, /* i: use every second entry in codebook */
+ Flag *pOverflow) /* o : Flag set when overflow occurs */
+{
+ register Word16 i;
+ Word16 temp;
+
+ const Word16 *p_dico;
+
+ Word16 p_dico_index = 0;
+ Word16 index = 0;
+
+ Word32 dist_min;
+ Word32 dist;
+
+ Word16 lsf_r1_0;
+ Word16 lsf_r1_1;
+ Word16 lsf_r1_2;
+
+ Word16 wf1_0;
+ Word16 wf1_1;
+ Word16 wf1_2;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ dist_min = MAX_32;
+ p_dico = dico;
+
+ lsf_r1_0 = lsf_r1[0];
+ lsf_r1_1 = lsf_r1[1];
+ lsf_r1_2 = lsf_r1[2];
+
+ wf1_0 = wf1[0];
+ wf1_1 = wf1[1];
+ wf1_2 = wf1[2];
+
+ if (use_half != 0)
+ {
+ p_dico_index = 3;
+ }
+
+ for (i = 0; i < dico_size; i++)
+ {
+ temp = lsf_r1_0 - (*p_dico++);
+ temp = (Word16)((((Word32) wf1_0) * temp) >> 15);
+ dist = ((Word32) temp) * temp;
+
+ temp = lsf_r1_1 - (*p_dico++);
+ temp = (Word16)((((Word32) wf1_1) * temp) >> 15);
+ dist += ((Word32) temp) * temp;
+
+ temp = lsf_r1_2 - (*p_dico++);
+ temp = (Word16)((((Word32) wf1_2) * temp) >> 15);
+ dist += ((Word32) temp) * temp;
+
+ if (dist < dist_min)
+ {
+ dist_min = dist;
+ index = i;
+ }
+
+ p_dico = p_dico + p_dico_index;
+ }
+
+ p_dico = dico + (3 * index);
+
+ if (use_half != 0)
+ {
+ p_dico += (3 * index);
+ }
+
+ /* Reading the selected vector */
+ *lsf_r1++ = *p_dico++;
+ *lsf_r1++ = *p_dico++;
+ *lsf_r1 = *p_dico;
+
+ return(index);
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Test_Vq_subvec3
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsf_r1 = pointer to the first LSF residual vector (Q15) (Word16)
+ dico = pointer to the quantization codebook (Q15) (const Word16)
+ wf1 = pointer to the first LSF weighting factor (Q13) (Word16)
+ dico_size = size of quantization codebook (Q0) (Word16)
+ use_half = flag to indicate use of every second entry in the
+ codebook (Flag)
+
+ Outputs:
+ buffer pointed to by lsf_r1 contains the selected vector
+ pOverflow -- pointer to Flag -- Flag set when overflow occurs
+
+ Returns:
+ index = quantization index (Q0) (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calls the static function Vq_subvec3. It is used for testing
+ purposes only
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ CALL Vq_subvec3(lsf_r1 = lsf_r1
+ dico = dico
+ wf1 = wf1
+ dico_size = dico_size
+ use_half = use_half)
+ MODIFYING(nothing)
+ RETURNING(index = tst_index3)
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Test_Vq_subvec3(
+ Word16 * lsf_r1,
+ const Word16 * dico,
+ Word16 * wf1,
+ Word16 dico_size,
+ Flag use_half,
+ Flag *pOverflow)
+{
+ Word16 tst_index3 = 0;
+
+ /*------------------------------------------------------------------------
+ CALL Vq_subvec3(lsf_r1 = lsf_r1
+ dico = dico
+ wf1 = wf1
+ dico_size = dico_size
+ use_half = use_half)
+ MODIFYING(nothing)
+ RETURNING(index = index)
+ ------------------------------------------------------------------------*/
+ tst_index3 =
+ Vq_subvec3(
+ lsf_r1,
+ dico,
+ wf1,
+ dico_size,
+ use_half,
+ pOverflow);
+
+ return(tst_index3);
+
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Q_plsf_3
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to structures of type Q_plsfState (Q_plsfState)
+ mode = coder mode (enum)
+ lsp1 = pointer to the first LSP vector (Word16)
+ lsp1_q = pointer to the quantized first LSP vector (Word16)
+ indice = pointer to the quantization indices of 3 vectors (Word16)
+ pred_init_i = pointer to the index of the initial value for
+ MA prediction in DTX mode (Word16)
+
+ Outputs:
+ lsp1_q points to a vector containing the new quantized LSPs
+ indice points to the new quantization indices of 3 vectors
+ pred_init_i points to the new initial index for MA prediction
+ in DTX mode
+ past_rq field of structure pointed to by st contains the current
+ quantized LSF parameters
+ pOverflow -- pointer to Flag -- Flag set when overflow occurs
+
+ Returns:
+ None
+
+ Global Variables Used:
+ pred_fac = table containing prediction factors (const Word16)
+ dico1_lsf = quantization table for split_MQ of 2 sets of LSFs
+ in a 20 ms frame (const Word16)
+ dico2_lsf = quantization table for split_MQ of 2 sets of LSFs
+ in a 20 ms frame (const Word16)
+ dico3_lsf = quantization table for split_MQ of 2 sets of LSFs
+ in a 20 ms frame (const Word16)
+ mr515_3_lsf = third codebook for MR475 and MR515 modes (const Word16)
+ mr795_1_lsf = first codebook for MR795 mode (const Word16)
+ mean_lsf = table of mean LSFs (const Word16)
+ past_rq_init = initalization table for MA predictor in DTX mode
+ (const Word16)
+
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs quantization of LSF parameters with 1st order MA
+ prediction and split by 3 vector quantization (split-VQ)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ q_plsf_3.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Q_plsf_3(
+ Q_plsfState *st, // i/o: state struct
+ enum Mode mode, // i : coder mode
+ Word16 *lsp1, // i : 1st LSP vector Q15
+ Word16 *lsp1_q, // o : quantized 1st LSP vector Q15
+ Word16 *indice, // o : quantization indices of 3 vectors Q0
+ Word16 *pred_init_i // o : init index for MA prediction in DTX mode
+)
+{
+ Word16 i, j;
+ Word16 lsf1[M], wf1[M], lsf_p[M], lsf_r1[M];
+ Word16 lsf1_q[M];
+
+ Word32 L_pred_init_err;
+ Word32 L_min_pred_init_err;
+ Word16 temp_r1[M];
+ Word16 temp_p[M];
+
+ // convert LSFs to normalize frequency domain 0..16384
+
+ Lsp_lsf(lsp1, lsf1, M);
+
+ // compute LSF weighting factors (Q13)
+
+ Lsf_wt(lsf1, wf1);
+
+ // Compute predicted LSF and prediction error
+ if (test(), sub(mode, MRDTX) != 0)
+ {
+ for (i = 0; i < M; i++)
+ {
+ lsf_p[i] = add(mean_lsf[i],
+ mult(st->past_rq[i],
+ pred_fac[i]));
+ lsf_r1[i] = sub(lsf1[i], lsf_p[i]);
+ }
+ }
+ else
+ {
+ // DTX mode, search the init vector that yields
+ // lowest prediction resuidual energy
+ *pred_init_i = 0;
+ L_min_pred_init_err = 0x7fffffff; // 2^31 - 1
+ for (j = 0; j < PAST_RQ_INIT_SIZE; j++)
+ {
+ L_pred_init_err = 0;
+ for (i = 0; i < M; i++)
+ {
+ temp_p[i] = add(mean_lsf[i], past_rq_init[j*M+i]);
+ temp_r1[i] = sub(lsf1[i],temp_p[i]);
+ L_pred_init_err = L_mac(L_pred_init_err, temp_r1[i], temp_r1[i]);
+ } // next i
+
+
+ if (L_sub(L_pred_init_err, L_min_pred_init_err) < (Word32) 0)
+ {
+ L_min_pred_init_err = L_pred_init_err;
+ Copy(temp_r1, lsf_r1, M);
+ Copy(temp_p, lsf_p, M);
+ // Set zerom
+ Copy(&past_rq_init[j*M], st->past_rq, M);
+ *pred_init_i = j;
+ } // endif
+ } // next j
+ } // endif MRDTX
+
+ //---- Split-VQ of prediction error ----
+ if (sub (mode, MR475) == 0 || sub (mode, MR515) == 0)
+ { // MR475, MR515
+
+
+ indice[0] = Vq_subvec3(&lsf_r1[0], dico1_lsf, &wf1[0], DICO1_SIZE, 0);
+
+ indice[1] = Vq_subvec3(&lsf_r1[3], dico2_lsf, &wf1[3], DICO2_SIZE/2, 1);
+
+ indice[2] = Vq_subvec4(&lsf_r1[6], mr515_3_lsf, &wf1[6], MR515_3_SIZE);
+
+ }
+ else if (sub (mode, MR795) == 0)
+ { // MR795
+
+
+ indice[0] = Vq_subvec3(&lsf_r1[0], mr795_1_lsf, &wf1[0], MR795_1_SIZE, 0);
+
+ indice[1] = Vq_subvec3(&lsf_r1[3], dico2_lsf, &wf1[3], DICO2_SIZE, 0);
+
+ indice[2] = Vq_subvec4(&lsf_r1[6], dico3_lsf, &wf1[6], DICO3_SIZE);
+
+ }
+ else
+ { // MR59, MR67, MR74, MR102 , MRDTX
+
+
+ indice[0] = Vq_subvec3(&lsf_r1[0], dico1_lsf, &wf1[0], DICO1_SIZE, 0);
+
+ indice[1] = Vq_subvec3(&lsf_r1[3], dico2_lsf, &wf1[3], DICO2_SIZE, 0);
+
+ indice[2] = Vq_subvec4(&lsf_r1[6], dico3_lsf, &wf1[6], DICO3_SIZE);
+
+ }
+
+
+ // Compute quantized LSFs and update the past quantized residual
+
+ for (i = 0; i < M; i++)
+ {
+ lsf1_q[i] = add(lsf_r1[i], lsf_p[i]);
+ st->past_rq[i] = lsf_r1[i];
+ }
+
+ // verification that LSFs has mimimum distance of LSF_GAP Hz
+
+ Reorder_lsf(lsf1_q, LSF_GAP, M);
+
+ // convert LSFs to the cosine domain
+
+ Lsf_lsp(lsf1_q, lsp1_q, M);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Q_plsf_3(
+ Q_plsfState *st, /* i/o: state struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 *lsp1, /* i : 1st LSP vector Q15 */
+ Word16 *lsp1_q, /* o : quantized 1st LSP vector Q15 */
+ Word16 *indice, /* o : quantization indices of 3 vectors Q0 */
+ Word16 *pred_init_i,/* o : init index for MA prediction in DTX mode */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ register Word16 i, j;
+ Word16 lsf1[M];
+ Word16 wf1[M];
+ Word16 lsf_p[M];
+ Word16 lsf_r1[M];
+ Word16 lsf1_q[M];
+
+ Word32 L_pred_init_err;
+ Word32 L_min_pred_init_err;
+ Word32 L_temp;
+ Word16 temp_r1[M];
+ Word16 temp_p[M];
+ Word16 temp;
+
+ /* convert LSFs to normalize frequency domain 0..16384 */
+
+ Lsp_lsf(
+ lsp1,
+ lsf1,
+ M,
+ pOverflow);
+
+ /* compute LSF weighting factors (Q13) */
+
+ Lsf_wt(
+ lsf1,
+ wf1,
+ pOverflow);
+
+ /* Compute predicted LSF and prediction error */
+ if (mode != MRDTX)
+ {
+ for (i = 0; i < M; i++)
+ {
+ temp = (Word16)((((Word32) st->past_rq[i]) *
+ (*(pred_fac_3 + i))) >> 15);
+
+ *(lsf_p + i) = *(mean_lsf_3 + i) + temp;
+
+ *(lsf_r1 + i) = *(lsf1 + i) - *(lsf_p + i);
+ }
+ }
+ else
+ {
+ /* DTX mode, search the init vector that yields */
+ /* lowest prediction resuidual energy */
+ *pred_init_i = 0;
+ L_min_pred_init_err = 0x7fffffff; /* 2^31 - 1 */
+
+ for (j = 0; j < PAST_RQ_INIT_SIZE; j++)
+ {
+ L_pred_init_err = 0;
+ for (i = 0; i < M; i++)
+ {
+ *(temp_p + i) = *(mean_lsf_3 + i) + *(past_rq_init + j * M + i);
+
+ *(temp_r1 + i) = *(lsf1 + i) - *(temp_p + i);
+
+ L_temp = ((Word32) * (temp_r1 + i)) * *(temp_r1 + i);
+
+ L_pred_init_err = L_pred_init_err + (L_temp << 1);
+
+ } /* next i */
+
+
+ if (L_pred_init_err < L_min_pred_init_err)
+ {
+ L_min_pred_init_err = L_pred_init_err;
+
+ oscl_memcpy(
+ lsf_r1,
+ temp_r1,
+ M*sizeof(Word16));
+
+ oscl_memcpy(
+ lsf_p,
+ temp_p,
+ M*sizeof(Word16));
+
+ /* Set zerom */
+ oscl_memcpy(
+ st->past_rq,
+ &past_rq_init[j*M],
+ M*sizeof(Word16));
+
+ *pred_init_i = j;
+
+ } /* endif */
+ } /* next j */
+ } /* endif MRDTX */
+
+ /*---- Split-VQ of prediction error ----*/
+ if ((mode == MR475) || (mode == MR515))
+ { /* MR475, MR515 */
+
+ *indice =
+ Vq_subvec3(
+ lsf_r1,
+ dico1_lsf_3,
+ wf1,
+ DICO1_SIZE,
+ 0,
+ pOverflow);
+
+ *(indice + 1) =
+ Vq_subvec3(
+ lsf_r1 + 3,
+ dico2_lsf_3,
+ wf1 + 3,
+ DICO2_SIZE / 2,
+ 1,
+ pOverflow);
+
+ *(indice + 2) =
+ Vq_subvec4(
+ lsf_r1 + 6,
+ mr515_3_lsf,
+ wf1 + 6,
+ MR515_3_SIZE,
+ pOverflow);
+
+ }
+ else if (mode == MR795)
+ { /* MR795 */
+
+ *indice =
+ Vq_subvec3(
+ lsf_r1,
+ mr795_1_lsf,
+ wf1,
+ MR795_1_SIZE,
+ 0,
+ pOverflow);
+
+ *(indice + 1) =
+ Vq_subvec3(
+ lsf_r1 + 3,
+ dico2_lsf_3,
+ wf1 + 3,
+ DICO2_SIZE,
+ 0,
+ pOverflow);
+
+ *(indice + 2) =
+ Vq_subvec4(
+ lsf_r1 + 6,
+ dico3_lsf_3,
+ wf1 + 6,
+ DICO3_SIZE,
+ pOverflow);
+
+ }
+ else
+ { /* MR59, MR67, MR74, MR102 , MRDTX */
+
+ *indice =
+ Vq_subvec3(
+ lsf_r1,
+ dico1_lsf_3,
+ wf1,
+ DICO1_SIZE,
+ 0,
+ pOverflow);
+
+ *(indice + 1) =
+ Vq_subvec3(
+ lsf_r1 + 3,
+ dico2_lsf_3,
+ wf1 + 3,
+ DICO2_SIZE,
+ 0,
+ pOverflow);
+
+ *(indice + 2) =
+ Vq_subvec4(
+ lsf_r1 + 6,
+ dico3_lsf_3,
+ wf1 + 6,
+ DICO3_SIZE,
+ pOverflow);
+
+ }
+
+
+ /* Compute quantized LSFs and update the past quantized residual */
+
+ for (i = 0; i < M; i++)
+ {
+ *(lsf1_q + i) = *(lsf_r1 + i) + *(lsf_p + i);
+ st->past_rq[i] = *(lsf_r1 + i);
+ }
+
+ /* verification that LSFs has mimimum distance of LSF_GAP Hz */
+
+ Reorder_lsf(
+ lsf1_q,
+ LSF_GAP,
+ M,
+ pOverflow);
+
+ /* convert LSFs to the cosine domain */
+
+ Lsf_lsp(
+ lsf1_q,
+ lsp1_q,
+ M,
+ pOverflow);
+
+ return;
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: q_plsf_3_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "q_plsf_3_tbl.h"
+
+/*--------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : q_plsf_3.tab
+* Purpose : Table for routine LSF VQ.
+* $Id $
+*
+********************************************************************************
+*/
+
+
+/* initalization table for MA predictor in dtx mode */
+const Word16 past_rq_init[80] =
+{
+ -258, -318, -439, -634, -656, -773, -711, -502, -268, -193,
+ -2, 125, 122, -39, -9, 105, 129, 283, 372, 575,
+ -277, -324, -197, -487, -445, -362, -292, -27, 177, 543,
+ 342, 517, 516, 130, 27, -104, -120, -140, -74, -56,
+ -564, -943, -1520, -965, -814, -526, -322, -2, 159, 657,
+ -312, -284, -386, -597, -493, -526, -418, -229, 105, 449,
+ -557, -870, -1075, -919, -950, -752, -709, -316, 62, 486,
+ -314, -191, -203, -330, -160, -103, -51, 131, 338, 515
+};
+
+
+const Word16 mean_lsf_3[10] =
+{
+ 1546,
+ 2272,
+ 3778,
+ 5488,
+ 6972,
+ 8382,
+ 10047,
+ 11229,
+ 12766,
+ 13714
+};
+
+
+const Word16 pred_fac_3[10] =
+{
+ 9556,
+ 10769,
+ 12571,
+ 13292,
+ 14381,
+ 11651,
+ 10588,
+ 9767,
+ 8593,
+ 6484
+};
+
+
+
+/* first codebook from IS641 */
+
+const Word16 dico1_lsf_3[DICO1_SIZE*3] =
+{
+ 6, 82, -131,
+ 154, -56, -735,
+ 183, -65, -265,
+ 9, -210, -361,
+ 113, 718, 1817,
+ 1010, 1214, 1573,
+ 857, 1333, 2276,
+ 827, 1568, 1933,
+ 717, 1989, 2206,
+ 838, 1172, 1823,
+ 721, 1000, 2154,
+ 286, 476, 1509,
+ -247, -531, 230,
+ 147, -82, 569,
+ 26, -177, -944,
+ -27, -273, 692,
+ -164, -264, -183,
+ 224, 790, 1039,
+ 899, 946, 601,
+ 485, 771, 1150,
+ 524, 677, 903,
+ -140, 375, 778,
+ 410, 676, 429,
+ 301, 530, 1009,
+ 719, 646, 38,
+ 226, 367, 40,
+ 145, -45, -505,
+ 290, 121, -121,
+ 302, 127, 166,
+ -124, -383, -956,
+ -358, -455, -977,
+ 715, 878, 894,
+ 978, 923, 211,
+ 477, 272, 64,
+ 188, -78, 17,
+ -143, -65, 38,
+ 643, 586, 621,
+ -134, -426, -651,
+ 347, 545, 2820,
+ 1188, 2726, 2442,
+ 142, -80, 1735,
+ 283, 130, 461,
+ -262, -399, -1145,
+ -411, 155, 430,
+ 329, 375, 779,
+ 53, -226, -139,
+ -129, -236, 1682,
+ 285, 744, 1327,
+ 738, 697, 1664,
+ 312, 409, 266,
+ 325, 720, 135,
+ 1, 221, 453,
+ 8, 203, 145,
+ 299, 640, 760,
+ 29, 468, 638,
+ 103, 429, 379,
+ 420, 954, 932,
+ 1326, 1210, 1258,
+ 704, 1012, 1152,
+ -166, -444, -266,
+ -316, -130, -376,
+ 191, 1151, 1904,
+ -240, -543, -1260,
+ -112, 268, 1207,
+ 70, 1062, 1583,
+ 278, 1360, 1574,
+ -258, -272, -768,
+ 19, 563, 2240,
+ -3, -265, 135,
+ -295, -591, -388,
+ 140, 354, -206,
+ -260, -504, -795,
+ -433, -718, -1319,
+ 109, 331, 962,
+ -429, -87, 652,
+ -296, 426, 1019,
+ -239, 775, 851,
+ 489, 1334, 1073,
+ -334, -332, 25,
+ 543, 1206, 1807,
+ 326, 61, 727,
+ 578, 849, 1405,
+ -208, -277, 329,
+ -152, 64, 669,
+ -434, -678, -727,
+ -454, -71, 251,
+ 605, 480, 254,
+ -482, 11, 996,
+ -289, 395, 486,
+ 722, 1049, 1440,
+ -30, -316, -786,
+ -106, -115, -619,
+ 861, 1474, 1412,
+ 1055, 1366, 1184,
+ 812, 1237, 925,
+ 42, -251, -576,
+ 342, 141, -454,
+ -168, -80, 1359,
+ -342, -656, -1763,
+ 100, 821, 725,
+ 990, 747, 800,
+ 332, 440, 568,
+ 663, 379, 852,
+ 112, 165, -369,
+ 597, 910, 282,
+ -8, 834, 1281,
+ -352, 572, 695,
+ 462, 2246, 1806,
+ 345, 190, 1374,
+ 416, 915, 2166,
+ 168, -82, 280,
+ -516, -446, 840,
+ 47, 533, 44,
+ -362, -711, -1143,
+ 22, 193, 1472,
+ -85, 233, 1813,
+ -62, 579, 1504,
+ 550, 944, 1749,
+ 723, 650, 1148,
+ 972, 884, 1395,
+ -425, 643, 0,
+ 1000, 952, 1098,
+ 249, 1446, 672,
+ -334, -87, 2172,
+ -554, 1882, 2672,
+ 140, 1826, 1853,
+ 920, 1749, 2590,
+ 1076, 1933, 2038,
+ -137, -443, -1555,
+ 1269, 1174, 468,
+ -493, -122, 1521,
+ -451, 1033, 1214,
+ 482, 1695, 1118,
+ 815, 649, 384,
+ -446, -692, 107,
+ -319, -605, -118,
+ -207, -505, 525,
+ -468, -12, 2736,
+ 75, 1934, 1305,
+ 880, 2358, 2267,
+ 1285, 1575, 2004,
+ -48, -304, -1186,
+ -435, -461, -251,
+ -366, -404, -547,
+ -289, -605, -597,
+ -538, -810, -165,
+ -120, 3, 356,
+ 639, 1241, 1502,
+ 96, 177, 750,
+ -435, -585, -1174,
+ -356, 109, -79,
+ -485, 288, 2005,
+ 9, 1116, 731,
+ 880, 2134, 946,
+ -265, 1585, 1065,
+ 1157, 1210, 843,
+ -498, -668, 431,
+ 374, 321, -229,
+ 1440, 2101, 1381,
+ 449, 461, 1155,
+ -105, 39, -384,
+ -263, 367, 182,
+ -371, -660, 773,
+ -188, 1151, 971,
+ 1333, 1632, 1435,
+ 774, 1267, 1221,
+ -482, -832, -1489,
+ -237, -210, 860,
+ 890, 1615, 1064,
+ 472, 1062, 1192,
+ 185, 1077, 989,
+ -568, -992, -1704,
+ -449, -902, -2043,
+ -142, -377, -458,
+ -210, -554, -1029,
+ -11, 1133, 2265,
+ -329, -675, -893,
+ -250, 657, 1187,
+ 519, 1510, 1779,
+ 520, 539, 1403,
+ 527, 1421, 1302,
+ -563, -871, -1248,
+ -147, -463, 879,
+ -76, 2334, 2840,
+ 563, 2573, 2385,
+ 632, 1926, 2920,
+ 719, 2023, 1840,
+ -545, -723, 1108,
+ 129, -125, 884,
+ 1417, 1632, 925,
+ -94, 1566, 1751,
+ -341, 1533, 1551,
+ 591, 395, -274,
+ -76, 981, 2831,
+ 153, 2985, 1844,
+ 1032, 2565, 2749,
+ 1508, 2832, 1879,
+ 791, 1199, 538,
+ -190, -453, 1489,
+ -278, -548, 1158,
+ -245, 1941, 2044,
+ 1024, 1560, 1650,
+ 512, 253, 466,
+ -62, -323, 1151,
+ -473, -376, 507,
+ -433, 1380, 2162,
+ 899, 1943, 1445,
+ 134, 704, 440,
+ 460, 525, -28,
+ -450, 279, 1338,
+ 0, 971, 252,
+ -445, -627, -991,
+ -348, -602, -1424,
+ 398, 712, 1656,
+ -107, 314, -178,
+ 93, 2226, 2238,
+ 518, 849, 656,
+ -462, -711, -447,
+ 174, -34, 1191,
+ -119, 42, 1005,
+ -372, 274, 758,
+ 1036, 2352, 1838,
+ 675, 1724, 1498,
+ 430, 1286, 2133,
+ -129, -439, 0,
+ -373, 800, 2144,
+ 6, 1587, 2478,
+ 478, 596, 2128,
+ -428, -736, 1505,
+ 385, 178, 980,
+ 139, 449, 1225,
+ -526, -842, -982,
+ 145, 1554, 1242,
+ 623, 1448, 656,
+ 349, 1016, 1482,
+ 31, -280, 415,
+ -316, 724, 1641,
+ 360, 1058, 556,
+ -436, -358, 1201,
+ -355, 1123, 1939,
+ 401, 1584, 2248,
+ -527, -1012, 355,
+ 233, 238, 2233,
+ -550, -897, -639,
+ -365, -501, 1957,
+ 389, 1860, 1621,
+ 162, 1132, 1264,
+ -237, 1174, 1390,
+ -640, -411, 116,
+ -228, 1694, 2298,
+ 1639, 2186, 2267,
+ 562, 1273, 2658,
+ 323, 338, 1774,
+ 578, 1107, 852,
+ 22, 594, 934,
+ -143, 718, 446
+};
+
+
+/* second codebook from IS641 */
+
+const Word16 dico2_lsf_3[DICO2_SIZE*3] =
+{
+ 50, 71, -9,
+ -338, -698, -1407,
+ 102, -138, -820,
+ -310, -469, -1147,
+ 414, 67, -267,
+ 1060, 814, 1441,
+ 1548, 1360, 1272,
+ 1754, 1895, 1661,
+ 2019, 2133, 1820,
+ 1808, 2318, 1845,
+ 644, -93, 454,
+ 858, 329, -136,
+ 489, -258, -128,
+ -198, -745, -41,
+ -52, -265, -985,
+ 346, 137, 479,
+ -1741, -748, -684,
+ -1163, -1725, -367,
+ -895, -1145, -784,
+ -488, -946, -968,
+ -85, -390, -725,
+ 215, -340, -171,
+ 1020, 916, 1969,
+ 564, 179, 746,
+ 662, 977, 1734,
+ 887, 622, 914,
+ 939, 856, 1165,
+ 309, 688, 803,
+ 917, 161, 570,
+ 118, -20, -283,
+ -816, -42, 204,
+ -1228, -325, -462,
+ -963, -202, -143,
+ -988, -484, -361,
+ -702, -978, -477,
+ -302, -790, -1188,
+ -100, -786, -1088,
+ -1054, -947, -1684,
+ -202, -843, -782,
+ -1039, -1378, -901,
+ -624, -110, -85,
+ 356, 213, -10,
+ -493, 364, 774,
+ 425, 822, 479,
+ -83, 557, 520,
+ -992, -1560, -572,
+ -603, -741, -26,
+ -502, -638, -903,
+ 209, 306, 147,
+ -316, -593, -596,
+ -85, -211, -225,
+ -918, -529, 117,
+ 233, -439, -738,
+ 1101, 751, 633,
+ 1457, 1716, 1511,
+ 1765, 1457, 910,
+ 1122, 1156, 849,
+ 1354, 868, 470,
+ -871, -1150, -1796,
+ -871, -861, -992,
+ -118, 155, 212,
+ -1051, -849, -606,
+ -1117, -1849, -2750,
+ -1019, -1427, -1869,
+ 370, -184, -414,
+ 959, 493, 104,
+ 958, 1039, 543,
+ 154, 653, 201,
+ 1249, 507, 150,
+ 663, 503, 230,
+ 623, 777, 675,
+ 659, 88, -110,
+ 843, 244, 224,
+ 382, 541, 302,
+ 724, 433, 666,
+ 1166, 734, 341,
+ -138, 20, -397,
+ -1183, -424, -46,
+ -321, -352, -124,
+ 1333, 1021, 1080,
+ 262, 366, 723,
+ 922, 283, -551,
+ 31, -636, -611,
+ -689, -697, -415,
+ -952, -779, -201,
+ -1329, -598, -359,
+ -953, -1285, 166,
+ 493, 305, 221,
+ 846, 703, 610,
+ 840, 936, 774,
+ -723, -1324, -1261,
+ -357, -1025, -1388,
+ -1096, -1376, -365,
+ -1416, -1881, -608,
+ -1798, -1727, -674,
+ -545, -1173, -703,
+ 678, 786, 148,
+ -123, 696, 1288,
+ 644, 350, -10,
+ 414, 614, 15,
+ 137, 344, -211,
+ -814, -1512, -819,
+ -391, -930, -588,
+ 47, -591, -898,
+ -909, -1097, -163,
+ -1272, -1167, -157,
+ -1464, -1525, -389,
+ -1274, -1188, -624,
+ 671, 213, 454,
+ 124, -274, -525,
+ -729, -496, -152,
+ -1344, 122, 135,
+ -2905, -589, -394,
+ -1728, 441, -50,
+ 1476, 904, 787,
+ 316, 236, -440,
+ -347, 217, 413,
+ -911, -917, 121,
+ -455, -932, 202,
+ -92, -465, -375,
+ 488, 390, 474,
+ 876, 729, 316,
+ -1815, -1312, -669,
+ 87, 962, 432,
+ 563, -249, -1058,
+ 250, 285, 1105,
+ 1141, 427, 696,
+ -1038, -1664, -1582,
+ -948, 346, 160,
+ -309, -272, -858,
+ 670, 624, 1250,
+ -944, -408, -666,
+ -606, -320, -384,
+ -492, 230, 65,
+ 334, -50, -16,
+ -16, -690, -1397,
+ 1791, 1716, 1399,
+ 2478, 2063, 1404,
+ 1245, 1471, 1426,
+ -382, -1037, -2,
+ 173, -398, 1145,
+ 1491, 2024, 1801,
+ 772, 1274, 1506,
+ 1429, 1735, 2001,
+ 1079, 1218, 1273,
+ -1154, -1851, -1329,
+ -808, -1133, -1096,
+ -451, -1033, -1722,
+ 65, 578, -84,
+ -1476, -2434, -1778,
+ -765, -1366, -494,
+ -218, -594, -931,
+ 337, -236, 562,
+ 2357, 2662, 1938,
+ 1489, 1276, 874,
+ 189, 358, 374,
+ -1519, -2281, -2346,
+ -967, -1271, -2095,
+ -628, -1188, -1542,
+ 1661, 1043, 546,
+ 565, 1061, 732,
+ -64, -836, -434,
+ -436, -96, 203,
+ 1078, 1216, 1636,
+ 907, 1534, 986,
+ 326, 965, 845,
+ 142, -84, 197,
+ 470, 2379, 1570,
+ 1133, 470, 1214,
+ 395, 1376, 1200,
+ 1125, 1042, 348,
+ -543, -1234, -376,
+ -215, -181, 481,
+ -1947, -1621, -210,
+ -750, -1185, 390,
+ 29, -399, 27,
+ 820, 1236, 755,
+ 695, 979, 409,
+ -174, 1197, 1035,
+ 912, 1356, 1846,
+ -992, -1437, 484,
+ -1485, -1700, 208,
+ -412, 1204, 1432,
+ -271, 896, 1144,
+ -416, 1777, 1434,
+ -1696, -2644, -204,
+ -1789, -1551, 1033,
+ -1656, -1559, 1303,
+ -1253, -1589, 1081,
+ -669, -1095, -66,
+ -682, 320, -345,
+ 659, 305, 1069,
+ -1292, -804, -19,
+ -1635, -1291, 29,
+ -1683, -497, 71,
+ -287, -7, -100,
+ -494, -962, -237,
+ 852, 1881, 1740,
+ -1217, -1387, 227,
+ -660, 302, 373,
+ 96, 1087, 1257,
+ -1074, -1669, 160,
+ 485, 2076, 1798,
+ -934, -220, 552,
+ -596, -612, 237,
+ 336, 1720, 879,
+ 643, 629, 434,
+ 1267, 522, 1633,
+ 15, 244, -441,
+ 1475, 717, 184,
+ 1819, 1590, 1709,
+ 988, 261, 937,
+ 2093, 2345, 1520,
+ 2139, 1858, 1606,
+ -577, -579, -1203,
+ -956, 135, -488,
+ -464, 51, -338,
+ -629, -348, -723,
+ 1146, 2073, 1442,
+ 2192, 1466, 911,
+ -1444, -1572, -2278,
+ 1400, 710, 1297,
+ 1335, 633, 928,
+ 1434, 2194, 2594,
+ 2422, 2204, 1881,
+ 982, 2242, 1854,
+ 380, 792, 1145,
+ -63, -539, 414,
+ -252, -964, -314,
+ -1261, -683, -780,
+ -831, -526, -1005,
+ -1666, -1135, -424,
+ -1611, -452, -299,
+ 1268, 1048, 642,
+ 1147, 853, 856,
+ -675, -336, 139,
+ 2268, 1343, 1418,
+ 29, 768, 797,
+ -1224, 423, 564,
+ -1318, -1082, 245,
+ -1302, -812, 573,
+ -1298, -1617, 646,
+ -968, 834, 723,
+ 993, 1652, 2027,
+ -191, -817, 432,
+ 662, 60, 198,
+ 626, 997, 1330,
+ 1648, 1963, 1289,
+ -1597, -93, -45,
+ -1088, 37, -84,
+ 1653, 2607, 2337,
+ 1065, 2040, 2377,
+ 1139, 2326, 2118,
+ 859, 357, 1510,
+ 664, 1227, 1099,
+ 479, 1360, 912,
+ 1897, 1754, 2019,
+ 1168, 1909, 1784,
+ 399, 34, 256,
+ -593, -304, -1053,
+ 547, 1694, 1407,
+ 647, -99, -341,
+ 1492, 1647, 1190,
+ 38, -644, -212,
+ 395, 846, 222,
+ -704, -765, -716,
+ -724, -1964, -2804,
+ -150, 291, -82,
+ 1233, 1459, 1007,
+ -140, -155, 153,
+ 439, 297, 1568,
+ -1529, -410, -636,
+ 1536, 455, -237,
+ -1328, -139, -260,
+ 531, 554, 868,
+ 269, 1264, 606,
+ -233, 883, 463,
+ 742, 600, -120,
+ -73, 421, 212,
+ -439, -58, 804,
+ -1286, -1241, 728,
+ 294, -490, 50,
+ -591, -905, -1254,
+ 42, -687, 147,
+ -25, 273, 596,
+ -311, 1213, 601,
+ -754, 849, 584,
+ 429, 607, 587,
+ -602, -166, 461,
+ -796, -823, 777,
+ 1380, 910, 1755,
+ 119, 1417, 972,
+ -219, -880, -1596,
+ -1049, -1010, 438,
+ -713, -1379, 78,
+ 0, -447, -1179,
+ -1136, -1319, -1573,
+ 2248, 1767, 1309,
+ 946, 1583, 1432,
+ 1150, 482, 436,
+ -469, -1108, 618,
+ -447, -966, 1088,
+ -1252, -1515, -114,
+ -1104, -2008, -579,
+ 210, 613, 497,
+ -1975, -1437, 642,
+ -1269, -856, 1011,
+ -1646, -1185, 1063,
+ -1555, -672, 1204,
+ -1692, -1114, 623,
+ -979, -1326, -1277,
+ 539, -147, 894,
+ -1354, -897, -434,
+ 888, 475, 428,
+ 153, -384, 338,
+ -1492, -511, 359,
+ -974, -1115, -470,
+ 105, -550, 677,
+ -937, -1145, 877,
+ 380, -260, 210,
+ 1685, 924, 1256,
+ 1775, 1190, 1095,
+ 1419, 631, 533,
+ 627, 299, -347,
+ -411, -534, 647,
+ -650, 29, -595,
+ -378, -1367, 1563,
+ 1402, 1121, 1465,
+ 1089, 1410, 648,
+ -2096, -1090, -6,
+ 311, -194, -869,
+ -639, -831, 416,
+ -1162, -1224, 1349,
+ -1247, -941, 1813,
+ -2193, -1987, 453,
+ -619, -1367, -956,
+ -1606, -1972, -1507,
+ -1175, -1057, -1104,
+ -377, 601, 201,
+ 1876, 825, 374,
+ -430, -1323, 29,
+ -1397, -1249, -1331,
+ -1007, -1504, 960,
+ -1401, -2009, 197,
+ -1379, -1949, -236,
+ -1077, 123, 422,
+ 615, 1269, 546,
+ -306, 1526, 904,
+ 1194, 1788, 1177,
+ -626, -884, -1526,
+ 199, 766, 1504,
+ -1065, 862, 197,
+ -1034, -1773, -887,
+ -800, 145, 599,
+ -1134, -519, 626,
+ -1205, -1926, 500,
+ -910, -1041, -1395,
+ -1476, -1567, -969,
+ -523, 842, 34,
+ 1794, 646, 862,
+ -1207, -1888, -1002,
+ -78, -9, -672,
+ 1044, 759, 80,
+ -600, 1139, 1019,
+ 57, 2000, 1422,
+ -833, 1414, 1121,
+ -1202, 1630, 1260,
+ -461, 1420, 1244,
+ 1537, 975, 253,
+ -283, 324, -359,
+ 599, -195, 106,
+ 588, 62, -587,
+ -757, 645, 205,
+ 51, 1201, 758,
+ -1209, 673, -390,
+ -624, 1581, 941,
+ -151, 1023, 735,
+ 2820, 1301, 690,
+ -302, 524, -99,
+ -900, -1588, -1189,
+ 1084, 251, 238,
+ 2014, 1792, 1010,
+ 1245, 1633, 1741,
+ -1227, -1540, -1208,
+ -621, 456, -109,
+ 40, -65, 788,
+ -805, -699, -1350,
+ -583, 904, 832,
+ -801, 532, 594,
+ 1972, 1408, 1351,
+ -1177, -1880, -2114,
+ -773, 568, 948,
+ -1015, 1079, 1260,
+ -1111, 482, -130,
+ 1778, 1044, 780,
+ -1491, 245, 912,
+ -316, -1141, -917,
+ -536, -1442, -2346,
+ -785, -1546, -1988,
+ -2003, 257, 909,
+ -1849, -633, -1209,
+ -1538, -1918, -1054,
+ 1606, 2239, 1576,
+ -567, -1500, -1544,
+ -1279, 195, 1369,
+ -817, 293, 1219,
+ -525, 630, 1197,
+ -1698, -2425, -1840,
+ -303, 731, 747,
+ -1169, -251, 269,
+ -950, -75, 1684,
+ -1182, -453, 1005,
+ -1599, 585, 378,
+ -2075, -571, -427,
+ -529, -1159, -1171,
+ -283, -205, -564,
+ -796, 1246, 717,
+ 2277, 927, 539,
+ -454, 559, 440,
+ -717, 1460, 1615,
+ -1030, 1052, 1610,
+ -1169, -138, 847,
+ 226, 39, -612,
+ -1251, -106, -729,
+ -651, 968, 1302,
+ -714, -636, 1727,
+ 353, 1069, 410,
+ -798, -156, 1099,
+ -574, 918, 446,
+ -1310, 1012, 466,
+ 1408, 1591, 765,
+ 1429, 1380, 1757,
+ 1949, 1956, 2378,
+ 1578, 2047, 2148,
+ 916, 98, -7,
+ 1893, 1418, 2141,
+ 348, 1405, 1579,
+ 152, 1134, 1801,
+ -267, 154, 1395,
+ -1166, 469, 1054,
+ -1142, -405, -1073,
+ -1341, -2264, -1581,
+ -364, 869, 1706,
+ -1162, 549, 1550,
+ -1225, -1932, -1666,
+ -1485, -1977, -2055,
+ -1727, -906, -98,
+ -1897, 233, 1492,
+ 892, 108, -331,
+ -1728, -1170, -1700,
+ -1060, 1980, 1790,
+ -1070, -1741, -1909,
+ -11, 1539, 1317,
+ -1600, 94, 497,
+ 421, 443, -197,
+ -1578, -349, -994,
+ -599, -539, 1140,
+ -965, -1419, -129,
+ -1341, 175, -447,
+ -375, 1311, 2055,
+ -371, -650, -307,
+ -1073, 605, 365,
+ -2057, -113, 430,
+ 652, 914, 967,
+ -1012, -1586, -2323,
+ 1505, 1248, 559,
+ 262, -486, -401,
+ -1727, 1342, 1546,
+ 50, 56, 432,
+ -330, 119, -604,
+ -1517, -1080, -810,
+ 946, 1127, 1055,
+ -1400, -1703, -1712,
+ -1270, -704, -1317,
+ 807, 1821, 1143,
+ 2760, 1606, 2171,
+ 1120, 409, -150,
+ -147, 404, 959,
+ 2439, 1911, 2189,
+ -906, -141, -866,
+ -904, -142, -458,
+ -557, -708, -1679,
+ -830, -1431, -1583,
+ -1842, -1346, -1086,
+ -1604, -272, 915,
+ -1196, 772, 1056,
+ -638, -1234, -1897,
+ -500, -81, -822,
+ -1289, -1613, -735,
+ -117, 785, 168,
+ -1090, 1133, 922,
+ -1096, -746, 1384,
+ 287, -547, -1063,
+ -1376, -2201, -1204,
+ -2176, -1570, -1757,
+ -1511, -2241, -771,
+ -1737, 1099, 830,
+ -1588, 724, 1243,
+ -1542, 693, 805,
+ -1690, -240, 1665,
+ -1700, -4, -668,
+ 2149, 816, 1042,
+ -818, -1841, 22,
+ -764, -507, 449,
+ -1151, -617, 289,
+ -843, -1596, -240,
+ 498, -234, -657,
+ -752, 480, 1678,
+ -319, -481, 193,
+ -811, 171, -119,
+ -2128, -202, -848,
+ 1717, 1140, 1700
+};
+
+
+/* third codebook from IS641 */
+
+const Word16 dico3_lsf_3[DICO3_SIZE*4] =
+{
+ 67, -17, 66, -12,
+ -1690, -581, -104, -272,
+ -1076, -1186, -1845, -376,
+ -1140, -926, -420, -58,
+ -259, -656, -1134, -553,
+ 1788, 1227, 455, 129,
+ 462, 441, -240, -528,
+ 840, 514, 130, -75,
+ 1114, 623, 153, 216,
+ 1068, 564, -6, -276,
+ 1119, 727, 190, -68,
+ 704, 306, 119, -264,
+ 329, 61, -100, 156,
+ 364, 123, 183, -208,
+ -171, -123, 220, -65,
+ -306, -62, 402, 17,
+ -660, -938, -266, 0,
+ 385, 235, 276, 285,
+ 320, 268, -336, -200,
+ -724, 17, -84, 381,
+ -544, 429, 494, 519,
+ -117, 288, 304, 329,
+ 643, 157, 701, 508,
+ 1200, 625, 796, 608,
+ 998, 421, 492, 632,
+ 1204, 780, 446, 132,
+ 1257, 844, 547, 449,
+ 829, 658, 541, 470,
+ 1132, 1258, 918, 639,
+ 547, 51, 423, 279,
+ 9, 392, 83, 94,
+ 542, 543, 229, -147,
+ -198, 129, 194, -185,
+ -863, -1321, -302, 30,
+ -597, -629, -19, 114,
+ -900, -1081, 466, 353,
+ -1483, -1573, 15, -143,
+ -1708, -2059, -751, 196,
+ -1876, -2067, -642, -258,
+ -2335, -1470, -450, -564,
+ -584, -186, -872, -414,
+ -1805, -988, -1125, -1310,
+ -726, -1129, 28, 169,
+ -1039, -864, -718, -246,
+ 484, 36, -233, -49,
+ 265, 67, 289, 467,
+ 178, 543, 810, 540,
+ 84, 282, 672, 703,
+ -975, -777, 129, 287,
+ -938, -227, 955, 595,
+ -1617, -289, 836, 649,
+ -1847, -215, 1106, 718,
+ -2034, -1085, 650, 440,
+ -2101, -529, 907, 575,
+ -2011, -336, 670, 204,
+ -2389, -692, 360, 137,
+ -2156, -2204, -9, 280,
+ -266, 119, 39, 193,
+ 78, -59, -120, 226,
+ -975, -858, -781, -1095,
+ -619, -413, -451, -842,
+ -1216, -1321, -813, -883,
+ -1376, -1615, -394, -428,
+ -737, -1113, -549, -790,
+ -880, -975, -967, -642,
+ -985, -886, -1273, -1361,
+ -473, -804, -1401, -1407,
+ 160, -265, -919, -275,
+ -248, -250, -718, -380,
+ 97, -103, -375, -229,
+ -415, -193, -135, -555,
+ 628, 361, 119, 216,
+ 579, 364, 391, 209,
+ 634, 522, -154, -148,
+ 526, 389, 170, 33,
+ 105, 267, 64, 380,
+ -1503, -1000, -30, -369,
+ -1070, 58, 647, 223,
+ -1520, -291, 621, 307,
+ -1531, 156, 762, 404,
+ -2029, 141, 734, 499,
+ -1849, -650, 306, 512,
+ -187, -104, -59, 438,
+ 134, -230, 156, -186,
+ -61, -260, -16, 10,
+ -569, -3, -421, -297,
+ -1725, -521, -346, 178,
+ -1362, -59, -44, 157,
+ -2146, -461, -470, -349,
+ -2170, -1, -369, -121,
+ -1579, -373, -900, -1015,
+ -1117, -591, -613, -784,
+ -561, 122, -75, -449,
+ -4, -171, -123, -372,
+ 192, 168, -76, -132,
+ 252, -107, 340, 210,
+ 392, 509, 272, 181,
+ -109, 145, 218, 119,
+ -416, -263, 485, 265,
+ -181, -8, -286, 226,
+ -244, -218, 69, -290,
+ -158, 191, -1, -64,
+ -592, -90, 213, -96,
+ 255, 435, 178, -80,
+ -369, -18, -33, -80,
+ -42, 415, 140, -222,
+ 1143, 651, 649, 329,
+ 767, 556, 249, 235,
+ 948, 413, 442, 279,
+ 141, 339, 356, 557,
+ -470, -170, 99, 237,
+ -569, -800, 352, 565,
+ 282, 473, 470, 332,
+ -199, -690, -1284, -917,
+ -193, -426, -800, -1122,
+ -26, -371, -490, -193,
+ 637, 595, 519, 330,
+ 408, -115, 79, 12,
+ 477, 87, -103, -376,
+ -666, -347, -277, -291,
+ -510, -481, 169, 297,
+ -829, -738, -205, -171,
+ -320, -540, 328, 283,
+ -859, -958, 442, -2,
+ 556, 686, 130, 56,
+ 1383, 1012, 755, 427,
+ 612, 741, 628, 553,
+ -339, -796, 134, 277,
+ -633, -1085, -2, -246,
+ -880, -1035, -1607, -1064,
+ -994, -474, -1138, -488,
+ -414, -795, 73, -206,
+ -8, -139, 439, 204,
+ -176, -578, 23, 131,
+ -269, -757, -191, 245,
+ -109, -338, 112, 316,
+ 120, -406, -118, 611,
+ -180, -186, -645, 115,
+ -173, 34, -518, -489,
+ -151, 61, -583, -844,
+ 220, -138, -681, -1020,
+ 391, -17, -598, -321,
+ 157, -295, 129, 155,
+ -926, -875, -987, 285,
+ 241, -83, -125, -125,
+ 620, 597, 432, 92,
+ 393, 78, 409, 61,
+ -393, -739, -413, -748,
+ 83, 54, 361, 27,
+ -1084, 130, -337, -694,
+ -1565, 297, 318, -19,
+ -1873, 36, 51, -317,
+ -2323, -246, 231, -84,
+ -2306, -783, 40, -179,
+ -2233, -930, -474, -462,
+ -754, -86, -288, -626,
+ -2411, -455, -63, 171,
+ -1099, -1094, -26, -143,
+ -1193, -455, -406, -381,
+ -605, -210, -96, -51,
+ -580, -476, -276, -15,
+ -1195, -634, -1203, -881,
+ -378, -221, -669, -952,
+ 594, 178, -403, -676,
+ 763, 327, 601, 290,
+ 172, 300, 203, 157,
+ -56, -336, 356, 24,
+ -228, -296, -259, -29,
+ -186, 263, 416, 14,
+ -353, 373, -12, -216,
+ 257, 96, 174, 57,
+ -1526, -616, -954, -499,
+ -497, -152, -333, 125,
+ 105, 200, 179, -97,
+ -331, -224, 765, 697,
+ 760, 256, 301, 59,
+ 455, -85, 204, 288,
+ -514, 240, 251, -109,
+ 256, 417, -34, -413,
+ 101, 430, 384, 156,
+ -31, -10, 206, 426,
+ 589, 145, 143, 71,
+ 808, 906, 333, 349,
+ 986, 938, 589, 331,
+ 1300, 824, 187, 509,
+ 1062, 653, 379, 466,
+ 1462, 937, 401, 274,
+ 787, 861, 265, 2,
+ 609, 553, 28, 305,
+ 926, 340, 106, 386,
+ 241, -267, -147, 225,
+ -178, -534, 347, 502,
+ -643, -381, 397, 30,
+ -651, -733, -435, 398,
+ -407, -726, -484, -248,
+ -789, -914, -438, -476,
+ -498, -390, 75, -295,
+ -964, -590, -606, 150,
+ -121, -49, -155, -78,
+ 935, 550, 389, 38,
+ -321, 127, 424, 315,
+ -285, -113, 283, 259,
+ 658, 203, 322, 486,
+ 903, 505, 748, 417,
+ 611, 423, 555, 512,
+ 239, -83, -578, -19,
+ -339, -731, 349, 13,
+ -934, -1399, -114, -360,
+ 107, 692, 182, 90,
+ -1243, -1538, -1551, -725,
+ -568, -903, -1363, -525,
+ -517, -853, -861, -1004,
+ -168, -690, -835, 63,
+ -137, -556, -547, 144,
+ -286, -817, 485, 319,
+ -147, -408, 526, 246,
+ -347, -434, 297, -28,
+ -290, -471, -1110, -1285,
+ -460, -359, -988, -794,
+ 1347, 1299, 690, 523,
+ 1216, 1068, 1094, 757,
+ 825, 1140, 752, 494,
+ 1252, 1365, 1195, 898,
+ 521, 1053, 532, 432,
+ -334, -216, -313, -263,
+ -160, 52, -472, -155,
+ 127, 136, -380, 44,
+ 851, 410, -162, -489,
+ 123, -255, -796, -667,
+ 1090, 917, 789, 493,
+ 1397, 1197, 558, 202,
+ -51, -118, -342, -701,
+ 83, 108, -42, -441,
+ 61, 95, 287, 256,
+ -27, 89, 524, 531,
+ 351, 227, 592, 545,
+ 697, 155, -164, 307,
+ 638, 274, -489, -50,
+ 754, 240, -166, -124,
+ -116, -579, -1212, -63,
+ 190, -295, -1040, -1296,
+ 147, -376, -177, -113,
+ 841, 1241, 1051, 668,
+ 2, 293, 551, 304,
+ -1096, -953, -248, 376,
+ -750, -965, 87, 516,
+ -275, -516, 689, 391,
+ -379, -643, 876, 594,
+ -390, -1013, -645, 573,
+ -107, -568, -689, -826,
+ -1025, -27, -328, -203,
+ 861, 749, 548, 233,
+ -1660, -1043, 451, 108,
+ -660, -620, 430, 236,
+ 21, -396, -1158, -631,
+ 1372, 1298, 967, 577,
+ 1125, 1125, 589, 454,
+ -323, -865, -467, 153,
+ -468, -699, -804, -509,
+ -392, -718, -204, -35,
+ -603, -1093, -567, -162,
+ -505, -1004, -102, 350,
+ 219, 224, 423, 252,
+ 395, 591, 608, 363,
+ -746, -96, 373, 172,
+ 171, 295, 714, 339,
+ 233, 77, 107, 277,
+ 157, 153, -499, -356,
+ 1547, 1073, 576, 494,
+ -292, -339, -504, -592,
+ -903, -72, -619, -481,
+ -1594, -1117, -567, -254,
+ -793, -507, -564, -291,
+ -492, -532, 502, 560,
+ -382, 427, 600, 230,
+ -227, 477, 251, 75,
+ 285, 842, 813, 476,
+ -1310, -1333, 186, 377,
+ -587, -917, 643, 381,
+ -1186, -553, 411, 82,
+ -1127, -820, -174, -540,
+ -604, 119, 543, 205,
+ -380, 657, 909, 567,
+ 112, -298, -374, 114,
+ -857, -251, 56, 159,
+ 401, 345, -34, -140,
+ -111, -607, 41, 614,
+ 355, -114, -77, 474,
+ 578, 56, 1450, 924,
+ 1098, 1420, 741, 400,
+ 246, 22, 588, 313,
+ -121, 327, 831, 472,
+ -1138, -608, 856, 552,
+ -1241, -1072, 638, 600,
+ -358, 254, -333, -303,
+ -646, 739, 358, 74,
+ 1226, 1671, 1221, 849,
+ 2241, 1624, 983, 636,
+ 1841, 1477, 749, 384,
+ 350, 263, 87, 128,
+ -1902, -941, -144, -64,
+ -1734, -255, 288, -31,
+ -2644, -1238, 366, 235,
+ -1643, -1092, -1344, -304,
+ -541, -1075, -1116, 123,
+ -1178, -252, -816, -180,
+ -1016, 533, 565, 233,
+ -487, -430, -188, 334,
+ 867, 1236, 534, 171,
+ -1590, -1607, 635, 630,
+ -2196, 310, 924, 412,
+ -2358, -328, 956, 529,
+ -2639, -377, 630, 278,
+ -2602, 317, 799, 299,
+ -2406, 133, 340, 31,
+ -2156, -1468, 131, 125,
+ -1184, -490, -139, 46,
+ -744, 447, 891, 564,
+ 67, -451, 646, 604,
+ -553, -429, -876, 396,
+ 162, -66, 1305, 915,
+ 479, 579, 1088, 794,
+ 450, 278, 566, 324,
+ -1057, -154, 148, -177,
+ -2545, 168, 1070, 592,
+ -2351, -42, 819, 345,
+ -2344, -707, 721, 250,
+ -2175, -1497, -309, 122,
+ -78, -73, 120, 173,
+ -4, 262, -263, -261,
+ -431, -64, -405, -732,
+ -2609, 116, -83, -193,
+ -1525, -944, -477, -725,
+ -508, 307, 170, 172,
+ 832, 417, 832, 686,
+ -225, 177, 894, 818,
+ -482, -389, 1279, 1039,
+ -383, 201, -350, 40,
+ 730, 635, 226, 526,
+ 503, 462, 338, 398,
+ 535, 714, 40, -282,
+ 1482, 1471, 1085, 731,
+ 1561, 1072, 909, 693,
+ 1419, 1282, 889, 879,
+ 1153, 728, 1186, 840,
+ -226, 1130, 949, 689,
+ -494, -986, -1556, -128,
+ -568, -721, -713, -26,
+ 317, 524, 70, 135,
+ -405, -865, -1766, -652,
+ -174, -801, 885, 773,
+ -153, -91, 1099, 751,
+ -506, -1149, 853, 646,
+ 241, 782, 519, 539,
+ 1853, 1700, 1101, 684,
+ -1249, -1486, -464, 188,
+ -893, -1409, -1312, -341,
+ -135, 438, -175, 18,
+ 1111, 976, 319, 208,
+ -1430, -1768, 83, 458,
+ -530, -1000, 307, 129,
+ -840, -15, -29, -356,
+ -911, -924, -1147, -242,
+ -119, -528, 127, -133,
+ -761, -765, 190, -83,
+ -315, 895, 522, 231,
+ -222, 102, -63, -428,
+ 316, 699, 379, 70,
+ 25, 716, 314, -108,
+ 507, 874, 566, 238,
+ 108, 941, 519, 195,
+ 425, -60, -427, 257,
+ 139, -103, -630, 446,
+ 334, 370, 412, 48,
+ -172, -690, -283, 557,
+ 187, -286, 158, 483,
+ 140, 270, -344, -631,
+ 924, 579, -116, 132,
+ 142, 466, -68, -64,
+ 230, -145, -302, -542,
+ -803, -912, 1018, 737,
+ -773, 1015, 630, 297,
+ -2596, 95, 445, 336,
+ -2122, 491, 510, 191,
+ -1253, 161, -2, -324,
+ -1450, -633, -712, -105,
+ -842, -254, -411, 100,
+ -640, -290, 1010, 763,
+ -650, 313, 1169, 730,
+ 140, 505, 1030, 766,
+ 772, 287, 1067, 823,
+ 495, 749, 305, 323,
+ -164, 462, 78, 399,
+ -342, -874, 69, 597,
+ -16, 620, 621, 337,
+ -138, -444, -265, 218,
+ 84, -450, 953, 666,
+ -222, -803, 541, 604,
+ -921, -1376, 244, 116,
+ -841, -723, 630, 588,
+ 140, 663, 294, 368,
+ 935, 1046, 881, 759,
+ 1746, 1464, 916, 628,
+ 436, 963, 281, 1,
+ -119, 74, 542, 213,
+ 1, -567, 301, 241,
+ 260, 435, 222, 396,
+ 936, 957, 1108, 703,
+ 510, 506, 808, 478,
+ 601, 694, 960, 620,
+ 972, 741, 980, 600,
+ 834, 717, 767, 684,
+ 643, 972, 935, 638,
+ 501, 661, 720, 851,
+ -105, -632, -303, -117,
+ -429, 130, 789, 442,
+ -522, -188, 704, 373,
+ -759, 42, 814, 523,
+ -531, -1137, 373, 578,
+ -682, -1203, -455, 285,
+ -1163, -1577, -1098, 44,
+ 81, -82, 712, 363,
+ 477, 246, 954, 622,
+ 1604, 1622, 1277, 891,
+ 1409, 859, 924, 892,
+ 774, 1041, 947, 1142,
+ 40, -546, -75, 288,
+ -616, -106, -697, -26,
+ -169, -160, -891, -739,
+ -279, -384, -1029, -350,
+ 1781, 1308, 1046, 816,
+ 1580, 1533, 1472, 1178,
+ 1505, 1076, 1216, 899,
+ 890, 904, 564, 654,
+ 920, 692, 1021, 856,
+ -493, 132, 177, 505,
+ 71, 195, -28, 97,
+ 456, 351, -164, 88,
+ 439, 278, -40, 350,
+ 1395, 949, 234, -95,
+ -805, -472, 38, -163,
+ 367, -98, 489, 523,
+ 1025, 1178, 1212, 906,
+ 319, 1314, 814, 461,
+ -123, -543, -804, 447,
+ -748, -324, -897, -1127,
+ -737, -501, -789, -713,
+ 715, 777, 1239, 922,
+ 1949, 1939, 1368, 865,
+ 730, 880, 758, 388,
+ -871, 454, 17, -251,
+ -381, -810, -1583, 239,
+ -521, -966, -792, 259,
+ -890, -1358, -770, -73,
+ 166, 349, -212, 323,
+ -840, -301, 473, 435,
+ -679, -464, 728, 351,
+ -156, -199, 667, 432,
+ 29, -252, 415, 480,
+ -731, -379, 145, 559,
+ -528, -631, -1158, -159,
+ 445, 273, 123, 639,
+ 373, -126, 800, 568,
+ 84, -162, 720, 712,
+ -830, -536, -185, 222,
+ 408, 452, 501, 771,
+ -897, -1355, -67, 442,
+ -792, -1406, 566, 602,
+ 167, -326, 509, 330,
+ -95, -626, -730, -344,
+ 1668, 1217, 779, 455,
+ 1316, 828, 584, 719,
+ 404, -31, 1013, 789,
+ 89, 107, 891, 549,
+ 871, 1581, 917, 671,
+ 866, 1479, 1289, 854,
+ 391, 1068, 1122, 812,
+ 78, -562, 345, 563,
+ 429, -103, 417, 787,
+ -122, -437, 411, 788,
+ -913, -417, 602, 754,
+ -226, -16, 151, 760,
+ -700, 118, -104, -14,
+ -1128, 48, 284, 393,
+ -390, -419, -639, -116,
+ -910, 306, 316, -13,
+ 1207, 984, 821, 669,
+ -1195, -693, 140, -213,
+ -884, -416, -199, -558,
+ -616, 245, -404, -664,
+ 262, 56, -617, -724,
+ -85, -491, -320, -656,
+ -570, -831, -129, -528,
+ -1506, -63, -367, -385,
+ -358, -321, 4, 51,
+ -366, -214, 319, 511,
+ 146, 671, -17, -291,
+ -110, 464, -139, -496,
+ -202, 220, -312, -631,
+ -660, -73, -655, -820,
+ -662, -653, -1288, -857,
+ -430, -953, -959, -264,
+ -49, -468, -72, -381,
+ -350, -563, -193, -407,
+ 55, -408, -803, 11,
+ -309, 649, 188, -198,
+ -512, 461, -79, -458,
+ -1318, -263, -134, -523,
+ -1657, -435, -495, -765,
+ 57, -347, -414, 434,
+ -1141, -242, -664, -857,
+ 34, -68, -707, -338
+};
+
+
+
+/* third codebook for MR475, MR515 */
+
+const Word16 mr515_3_lsf[MR515_3_SIZE*4] =
+{
+ 419, 163, -30, -262,
+ -455, -789, -1430, -721,
+ 1006, 664, 269, 25,
+ 619, 260, 183, 96,
+ -968, -1358, -388, 135,
+ -693, 835, 456, 154,
+ 1105, 703, 569, 363,
+ 1625, 1326, 985, 748,
+ -220, 219, 76, -208,
+ -1455, -1662, 49, 149,
+ -964, -172, -752, -336,
+ 625, 209, -250, -66,
+ -1017, -838, -2, 317,
+ -2168, -1485, -138, 123,
+ -1876, -2099, -521, 85,
+ -967, -366, -695, -881,
+ -921, -1011, -763, -949,
+ -124, -256, -352, -660,
+ 178, 463, 354, 304,
+ -1744, -591, -282, 79,
+ -2249, 175, 867, 499,
+ -138, -180, -181, -21,
+ -2291, -1241, -460, -520,
+ -771, 451, -10, -308,
+ 271, -65, 4, 214,
+ -279, -435, -43, -348,
+ -670, 35, -65, -211,
+ 806, 535, 85, 297,
+ 57, 239, 722, 493,
+ 225, 661, 840, 547,
+ -540, -376, 14, 349,
+ 469, 721, 331, 162,
+ -544, -752, -62, -10,
+ 398, -88, 724, 701,
+ -19, -533, -94, 601,
+ 136, -71, -681, -747,
+ -166, -344, 261, -50,
+ 161, -52, 485, 337,
+ -1675, 50, 190, -93,
+ -2282, -231, -194, -82,
+ -95, -595, -154, 128,
+ 894, 501, 588, 457,
+ -345, 206, 122, 110,
+ -631, -227, -569, 3,
+ 408, 239, 397, 226,
+ -197, -2, 128, 491,
+ 1281, 904, 292, 215,
+ 538, 306, 259, 509,
+ -677, -1047, 13, 321,
+ -679, -588, -358, -212,
+ -558, 243, 646, 479,
+ 486, 342, 634, 532,
+ 107, 802, 331, 136,
+ -112, -398, -1031, -286,
+ -326, -705, 288, 272,
+ 1299, 1144, 1178, 860,
+ -423, 121, -385, -148,
+ -295, -302, -834, -819,
+ 16, -24, -201, -476,
+ 555, 91, -245, 294,
+ -38, -379, -962, -1221,
+ -1191, -1518, -273, -395,
+ -390, -1013, -645, 573,
+ -1843, -1030, 505, 468,
+ 744, 947, 609, 493,
+ -689, -1172, -628, -135,
+ -1026, 195, 411, 196,
+ 1582, 1147, 575, 337,
+ -1239, -777, -648, -142,
+ 595, 825, 967, 735,
+ -1206, -970, -81, -342,
+ -745, 13, -72, 375,
+ 454, 19, 1407, 921,
+ -1647, -172, 861, 562,
+ 928, 1537, 1063, 740,
+ -2472, -952, 264, 82,
+ -502, -965, -1334, 123,
+ 867, 1236, 534, 171,
+ -2320, -460, 780, 363,
+ -1190, -617, 252, -61,
+ -174, 34, 1011, 788,
+ -2333, 247, 423, 153,
+ -16, -355, 262, 449,
+ -1576, -1073, -544, -371,
+ -615, -305, 1051, 805,
+ 687, 528, 6, -182,
+ 935, 875, 1002, 809,
+ 199, 257, 126, 76,
+ -584, -1138, 599, 556,
+ -1105, -1391, -1591, -519,
+ -977, -1325, 108, 347,
+ -722, -975, 365, 101,
+ -145, 681, 249, -153,
+ 0, -334, -570, 159,
+ 412, 285, -336, -617,
+ -953, -966, 887, 689,
+ -1251, 84, -185, -398,
+ -592, 433, 1044, 653,
+ 85, 329, -40, 361,
+ -433, -705, 466, 574,
+ -154, 654, 592, 290,
+ -167, 72, 349, 175,
+ 674, 297, 977, 720,
+ 1235, 1204, 757, 488,
+ -400, -269, 538, 372,
+ -1350, -1387, -1194, -91,
+ 1262, 876, 775, 700,
+ -599, -38, -430, -722,
+ 1976, 1630, 991, 608,
+ 111, 276, -226, -96,
+ -947, -388, -11, -7,
+ -303, -531, -839, 338,
+ 1734, 1710, 1405, 1013,
+ -516, -855, -645, 210,
+ -688, -416, 513, 230,
+ -822, -637, -1146, -320,
+ -952, -658, -694, 183,
+ -114, -623, 818, 674,
+ -191, -204, 731, 635,
+ 51, 1221, 883, 576,
+ -954, -431, 826, 598,
+ -342, -755, -900, -407,
+ -1126, -354, -206, -512,
+ -547, -810, -357, -620,
+ 66, 515, -73, -410,
+ -872, -945, -1444, -1227,
+ 191, -17, -544, -231,
+ -1540, -544, -901, -886
+};
+
+/* first codebook for MR795 */
+
+const Word16 mr795_1_lsf[MR795_1_SIZE*3] =
+{
+ -890, -1550, -2541,
+ -819, -970, 175,
+ -826, -1234, -762,
+ -599, -22, 634,
+ -811, -987, -902,
+ -323, 203, 26,
+ -383, -235, -781,
+ -399, 1262, 906,
+ -932, -1399, -1380,
+ -624, 93, 87,
+ -414, -539, -691,
+ 37, 633, 510,
+ -387, -476, -1330,
+ 399, 66, 263,
+ -407, -49, -335,
+ -417, 1041, 1865,
+ -779, -1089, -1440,
+ -746, -858, 832,
+ -581, -759, -371,
+ -673, -506, 2088,
+ -560, -634, -1179,
+ 271, 241, 14,
+ -438, -244, -397,
+ 463, 1202, 1047,
+ -606, -797, -1438,
+ -51, -323, 481,
+ -224, -584, -527,
+ 494, 881, 682,
+ -433, -306, -1002,
+ 554, 659, 222,
+ 171, -160, -353,
+ 681, 1798, 1565,
+ -852, -1181, -1695,
+ -336, -666, 114,
+ -581, -756, -744,
+ -195, 375, 497,
+ -465, -804, -1098,
+ 154, 282, -131,
+ -50, -191, -719,
+ 323, 732, 1542,
+ -722, -819, -1404,
+ 105, -250, 185,
+ -178, -502, -742,
+ 321, 510, 1111,
+ -323, -567, -966,
+ 127, 484, 338,
+ -160, 52, -338,
+ 732, 1367, 1554,
+ -626, -802, -1696,
+ -286, -586, 676,
+ -695, -343, -370,
+ -490, 295, 1893,
+ -630, -574, -1014,
+ -80, 645, -69,
+ -6, -318, -364,
+ 782, 1450, 1038,
+ -313, -733, -1395,
+ 120, 60, 477,
+ -264, -585, -123,
+ 711, 1245, 633,
+ -91, -355, -1016,
+ 771, 758, 261,
+ 253, 81, -474,
+ 930, 2215, 1720,
+ -808, -1099, -1925,
+ -560, -782, 169,
+ -804, -1074, -188,
+ -626, -55, 1405,
+ -694, -716, -1194,
+ -660, 354, 329,
+ -514, -55, -543,
+ 366, 1033, 1182,
+ -658, -959, -1357,
+ -55, -184, 93,
+ -605, -286, -662,
+ 404, 449, 827,
+ -286, -350, -1263,
+ 628, 306, 227,
+ -16, 147, -623,
+ 186, 923, 2146,
+ -674, -890, -1606,
+ -443, -228, 339,
+ -369, -790, -409,
+ 231, 86, 1469,
+ -448, -581, -1061,
+ 594, 450, -177,
+ -124, -170, -447,
+ 671, 1159, 1404,
+ -476, -667, -1511,
+ -77, -138, 716,
+ -177, -372, -381,
+ 451, 934, 915,
+ -250, -432, -822,
+ 272, 828, 446,
+ 26, 19, -31,
+ 698, 1692, 2168,
+ -646, -977, -1924,
+ -179, -473, 268,
+ -379, -745, -691,
+ 11, 127, 1033,
+ -488, -917, -825,
+ 61, 323, 135,
+ 147, -145, -686,
+ 685, 786, 1682,
+ -506, -848, -1297,
+ 35, 90, 222,
+ -23, -346, -670,
+ 455, 591, 1287,
+ -203, -593, -1086,
+ 652, 352, 437,
+ 39, 63, -457,
+ 841, 1265, 2105,
+ -520, -882, -1584,
+ -328, -711, 1421,
+ -596, -342, -70,
+ 209, 173, 1928,
+ -423, -598, -921,
+ 421, 605, -38,
+ -2, -245, -127,
+ 896, 1969, 1135,
+ -379, -518, -1579,
+ 173, 118, 753,
+ -55, -381, -52,
+ 985, 1021, 753,
+ -2, -291, -891,
+ 753, 992, 423,
+ 264, 131, -196,
+ 895, 2274, 2543,
+ -635, -1088, -2499,
+ -529, -982, 526,
+ -764, -830, -548,
+ -436, 316, 599,
+ -675, -940, -746,
+ -57, 236, -11,
+ -201, -81, -798,
+ 16, 845, 1558,
+ -737, -985, -1212,
+ -468, 17, 290,
+ -279, -584, -700,
+ 183, 822, 705,
+ -265, -492, -1187,
+ 421, 152, 468,
+ -390, 166, -268,
+ 39, 1550, 1868,
+ -635, -966, -1571,
+ -453, -492, 910,
+ -284, -1027, -75,
+ -181, -133, 1852,
+ -445, -624, -1174,
+ 420, 367, -49,
+ -389, -212, -169,
+ 707, 1073, 1208,
+ -539, -710, -1449,
+ 83, -163, 484,
+ -236, -543, -355,
+ 338, 1175, 814,
+ -246, -309, -958,
+ 606, 760, 60,
+ 166, -8, -163,
+ -306, 1849, 2563,
+ -747, -1025, -1783,
+ -419, -446, 209,
+ -718, -566, -534,
+ -506, 693, 857,
+ -463, -697, -1082,
+ 325, 431, -206,
+ -15, -8, -763,
+ 545, 919, 1518,
+ -611, -783, -1313,
+ 256, -55, 208,
+ -165, -348, -662,
+ 321, 680, 930,
+ -326, -429, -951,
+ 484, 446, 570,
+ -197, 72, -73,
+ 909, 1455, 1741,
+ -563, -737, -1974,
+ -124, -416, 718,
+ -478, -404, -314,
+ -16, 446, 1636,
+ -551, -537, -750,
+ -58, 638, 214,
+ 55, -185, -271,
+ 1148, 1301, 1212,
+ -483, -671, -1264,
+ 117, 285, 543,
+ -204, -391, -111,
+ 513, 1538, 854,
+ -114, -190, -978,
+ 877, 595, 464,
+ 260, 260, -311,
+ 748, 2283, 2216,
+ -517, -945, -2171,
+ -326, -708, 378,
+ -812, -691, -232,
+ -560, 687, 1409,
+ -732, -690, -836,
+ -359, 645, 386,
+ -265, 62, -678,
+ 145, 1644, 1208,
+ -555, -988, -1233,
+ -78, 14, 114,
+ -327, -358, -489,
+ 392, 677, 697,
+ -201, -236, -1140,
+ 693, 449, 178,
+ -243, 256, -433,
+ 611, 1385, 2456,
+ -612, -901, -1464,
+ -307, -17, 499,
+ -315, -667, -254,
+ 256, 428, 1463,
+ -486, -422, -1056,
+ 655, 370, 18,
+ -102, -185, -276,
+ 755, 1578, 1335,
+ -488, -603, -1418,
+ 182, -93, 870,
+ -73, -458, -348,
+ 835, 862, 957,
+ -282, -333, -746,
+ 547, 839, 428,
+ 273, -89, 13,
+ 940, 1708, 2576,
+ -418, -1084, -1758,
+ -44, -358, 259,
+ -497, -643, -560,
+ 99, 557, 961,
+ -421, -766, -917,
+ 295, 326, 184,
+ 175, 15, -626,
+ 532, 878, 1981,
+ -443, -768, -1275,
+ 221, 156, 268,
+ 39, -363, -505,
+ 695, 772, 1140,
+ -162, -459, -912,
+ 709, 444, 658,
+ 25, 303, -312,
+ 1268, 1410, 1715,
+ -297, -766, -1836,
+ -263, -108, 1070,
+ -406, -13, -129,
+ 57, 438, 2734,
+ -374, -487, -835,
+ 304, 696, 164,
+ 104, -235, 5,
+ 1611, 1900, 1399,
+ -229, -582, -1325,
+ 405, 192, 817,
+ -87, -438, 111,
+ 1028, 1199, 993,
+ 68, -175, -934,
+ 1033, 1117, 451,
+ 478, 200, -248,
+ 2127, 2696, 2042,
+ -835, -1323, -2131,
+ -799, -692, 466,
+ -812, -1032, -469,
+ -622, 288, 920,
+ -701, -841, -1070,
+ -411, 512, 8,
+ -390, -91, -744,
+ -30, 1043, 1161,
+ -822, -1148, -1156,
+ -294, -46, 110,
+ -411, -374, -678,
+ 214, 531, 668,
+ -406, -420, -1194,
+ 487, 232, 303,
+ -318, 91, -472,
+ 123, 1232, 2445,
+ -722, -952, -1495,
+ -738, -675, 1332,
+ -543, -606, -211,
+ -95, -98, 1508,
+ -549, -514, -1193,
+ 473, 211, 73,
+ -288, -112, -389,
+ 537, 1332, 1258,
+ -567, -755, -1545,
+ 71, -283, 632,
+ -170, -481, -493,
+ 681, 1002, 817,
+ -356, -331, -877,
+ 419, 706, 346,
+ 241, -34, -326,
+ 377, 1950, 1883,
+ -727, -1075, -1625,
+ -233, -543, 116,
+ -524, -806, -585,
+ -73, 478, 729,
+ -288, -925, -1143,
+ 173, 447, -52,
+ 68, -229, -606,
+ 449, 529, 1797,
+ -591, -875, -1363,
+ 183, -144, 324,
+ -103, -452, -666,
+ 623, 488, 1176,
+ -238, -511, -1004,
+ 326, 552, 458,
+ 136, 108, -319,
+ 626, 1343, 1883,
+ -490, -646, -1730,
+ -186, -449, 984,
+ -738, -76, -170,
+ -550, 755, 2560,
+ -496, -510, -947,
+ 210, 694, -52,
+ 84, -322, -199,
+ 1090, 1625, 1224,
+ -376, -603, -1396,
+ 343, 74, 632,
+ -175, -502, -32,
+ 972, 1332, 734,
+ 52, -295, -1113,
+ 1065, 918, 160,
+ 393, 107, -397,
+ 1214, 2649, 1741,
+ -632, -1201, -1891,
+ -719, -277, 353,
+ -651, -880, -122,
+ -211, 209, 1338,
+ -562, -714, -1059,
+ -208, 388, 159,
+ -320, -61, -551,
+ 293, 1092, 1443,
+ -648, -865, -1253,
+ -49, -143, 305,
+ -401, -227, -585,
+ 561, 532, 927,
+ -117, -443, -1188,
+ 507, 436, 292,
+ -79, 233, -458,
+ 671, 1025, 2396,
+ -633, -842, -1525,
+ -308, -286, 640,
+ -373, -621, -407,
+ 418, 253, 1305,
+ -315, -581, -1137,
+ 572, 685, -281,
+ 61, -68, -371,
+ 991, 1101, 1498,
+ -493, -683, -1362,
+ -47, 164, 704,
+ -256, -314, -268,
+ 631, 949, 1052,
+ -118, -348, -833,
+ 68, 1180, 568,
+ 152, 117, 34,
+ 1113, 1902, 2239,
+ -601, -959, -1706,
+ -143, -489, 480,
+ -332, -655, -574,
+ 54, 353, 1192,
+ -462, -652, -796,
+ 150, 549, 112,
+ 195, -111, -515,
+ 679, 1108, 1647,
+ -558, -749, -1217,
+ -9, 272, 341,
+ -53, -265, -535,
+ 489, 843, 1298,
+ -120, -482, -1032,
+ 632, 543, 408,
+ 179, 306, -526,
+ 1124, 1464, 2244,
+ -417, -786, -1562,
+ -224, -384, 1364,
+ -377, -459, -25,
+ 385, 489, 2174,
+ -332, -651, -829,
+ 544, 553, 61,
+ 22, -113, -89,
+ 1128, 1725, 1524,
+ -216, -373, -1653,
+ 161, 316, 908,
+ -165, -222, -67,
+ 1362, 1175, 789,
+ 73, -252, -767,
+ 738, 932, 616,
+ 362, 246, -126,
+ 787, 2654, 3027,
+ -691, -1106, -2190,
+ -565, -588, 524,
+ -590, -979, -490,
+ -263, 397, 982,
+ -577, -837, -945,
+ -22, 435, -49,
+ -190, -118, -629,
+ -88, 1240, 1513,
+ -636, -1051, -1019,
+ -291, 189, 259,
+ -257, -470, -629,
+ 145, 945, 894,
+ -326, -364, -1094,
+ 543, 260, 630,
+ -202, 189, -209,
+ 357, 1379, 2091,
+ -569, -1075, -1449,
+ -714, -239, 919,
+ -420, -705, -84,
+ -109, -114, 2407,
+ -413, -529, -1177,
+ 482, 368, 131,
+ -186, -72, -131,
+ 861, 1255, 1220,
+ -611, -658, -1341,
+ 227, -121, 631,
+ -176, -489, -218,
+ 745, 1175, 957,
+ -321, -148, -936,
+ 671, 966, 216,
+ 340, -3, -143,
+ 469, 1848, 2437,
+ -729, -961, -1683,
+ -213, -254, 321,
+ -511, -438, -521,
+ -126, 725, 903,
+ -340, -685, -1032,
+ 316, 480, 20,
+ 23, -89, -551,
+ 353, 1051, 1789,
+ -544, -757, -1364,
+ 298, -25, 436,
+ -100, -392, -519,
+ 467, 754, 1078,
+ -210, -398, -1078,
+ 620, 658, 630,
+ 33, 147, -178,
+ 921, 1687, 1921,
+ -325, -528, -1978,
+ 2, -285, 910,
+ -371, -490, -230,
+ 0, 597, 2010,
+ -496, -395, -834,
+ 37, 945, 245,
+ 181, -160, -144,
+ 1481, 1373, 1357,
+ -355, -601, -1270,
+ 298, 322, 672,
+ -193, -336, 77,
+ 1089, 1533, 922,
+ 177, -39, -1125,
+ 996, 781, 536,
+ 456, 366, -432,
+ 1415, 2440, 2279,
+ -466, -758, -2325,
+ -303, -509, 387,
+ -727, -557, 66,
+ -145, 643, 1248,
+ -544, -676, -916,
+ -225, 862, 588,
+ -152, 40, -533,
+ 423, 1423, 1558,
+ -572, -843, -1145,
+ -128, 85, 461,
+ -238, -257, -584,
+ 605, 748, 861,
+ 24, -202, -1409,
+ 797, 487, 303,
+ -181, 364, -182,
+ 616, 1378, 2942,
+ -494, -852, -1441,
+ -292, 61, 812,
+ -84, -723, -182,
+ 555, 532, 1506,
+ -365, -493, -1057,
+ 822, 588, 11,
+ -14, -18, -230,
+ 1001, 1401, 1451,
+ -474, -569, -1292,
+ 302, 62, 1062,
+ -70, -376, -222,
+ 982, 974, 1149,
+ -196, -234, -795,
+ 479, 1098, 499,
+ 362, 58, 70,
+ 1147, 2069, 2857,
+ -487, -878, -1824,
+ 73, -288, 348,
+ -358, -500, -508,
+ 199, 721, 1242,
+ -78, -697, -795,
+ 361, 536, 196,
+ 374, 110, -735,
+ 847, 1051, 1896,
+ -366, -713, -1182,
+ 315, 320, 429,
+ 72, -215, -450,
+ 759, 886, 1363,
+ -30, -428, -834,
+ 861, 627, 796,
+ 118, 468, -279,
+ 1355, 1883, 1893,
+ -188, -642, -1612,
+ 63, -175, 1198,
+ -418, -211, 51,
+ 414, 587, 2601,
+ -234, -557, -858,
+ 424, 889, 222,
+ 136, -101, 83,
+ 1413, 2278, 1383,
+ -84, -445, -1389,
+ 414, 313, 1045,
+ 29, -343, 65,
+ 1552, 1647, 980,
+ 183, -91, -829,
+ 1273, 1413, 360,
+ 553, 272, -107,
+ 1587, 3149, 2603
+};
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: q_plsf_5.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "q_plsf.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "lsp_lsf.h"
+#include "reorder.h"
+#include "lsfwt.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ /* Codebooks of LSF prediction residual */
+ extern const Word16 mean_lsf_5[];
+
+ extern const Word16 dico1_lsf_5[];
+ extern const Word16 dico2_lsf_5[];
+ extern const Word16 dico3_lsf_5[];
+ extern const Word16 dico4_lsf_5[];
+ extern const Word16 dico5_lsf_5[];
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Vq_subvec
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsf_r1 -- array of type Word16 -- 1st LSF residual vector, Q15
+ lsf_r2 -- array of type Word16 -- 2nd LSF residual vector, Q15
+ dico -- pointer to const Word16 -- quantization codebook, Q15
+ wf1 -- array of type Word16 -- 1st LSF weighting factors, Q13
+ wf2 -- array of type Word16 -- 2nd LSF weighting factors, Q13
+ dico_size -- Word16 -- size of quantization codebook, Q0
+ Outputs:
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ Word16 -- quantization index, Q0
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the quantization of a 4-dimensional subvector.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ q_plsf_5.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+/* Quantization of a 4 dimensional subvector */
+
+static Word16 Vq_subvec( /* o : quantization index, Q0 */
+ Word16 *lsf_r1, /* i : 1st LSF residual vector, Q15 */
+ Word16 *lsf_r2, /* i : 2nd LSF residual vector, Q15 */
+ const Word16 *dico, /* i : quantization codebook, Q15 */
+ Word16 *wf1, /* i : 1st LSF weighting factors Q13 */
+ Word16 *wf2, /* i : 2nd LSF weighting factors Q13 */
+ Word16 dico_size, /* i : size of quantization codebook, Q0 */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ Word16 index = 0; /* initialization only needed to keep gcc silent */
+ Word16 i;
+ Word16 temp;
+ const Word16 *p_dico;
+ Word32 dist_min;
+ Word32 dist;
+ Word16 wf1_0;
+ Word16 wf1_1;
+ Word16 wf2_0;
+ Word16 wf2_1;
+ Word32 aux1;
+ Word32 aux2;
+ Word32 aux3;
+ Word32 aux4;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ dist_min = MAX_32;
+ p_dico = dico;
+
+ wf1_0 = wf1[0];
+ wf1_1 = wf1[1];
+ wf2_0 = wf2[0];
+ wf2_1 = wf2[1];
+
+ aux1 = ((Word32) lsf_r1[0] * wf1_0);
+ aux2 = ((Word32) lsf_r1[1] * wf1_1);
+ aux3 = ((Word32) lsf_r2[0] * wf2_0);
+ aux4 = ((Word32) lsf_r2[1] * wf2_1);
+
+ for (i = 0; i < dico_size; i++)
+ {
+ temp = (aux1 - ((Word32)wf1_0 * *(p_dico++))) >> 15;
+ dist = ((Word32)temp * temp);
+
+ if (dist >= dist_min)
+ {
+ p_dico += 3;
+ continue;
+ }
+
+ temp = (aux2 - ((Word32)wf1_1 * *(p_dico++))) >> 15;
+ dist += ((Word32)temp * temp);
+
+ if (dist >= dist_min)
+ {
+ p_dico += 2;
+ continue;
+ }
+
+ temp = (aux3 - ((Word32)wf2_0 * *(p_dico++))) >> 15;
+ dist += ((Word32)temp * temp);
+
+ if (dist >= dist_min)
+ {
+ p_dico += 1;
+ continue;
+ }
+
+ temp = (aux4 - ((Word32)wf2_1 * *(p_dico++))) >> 15;
+ dist += ((Word32)temp * temp);
+
+
+ if (dist < dist_min)
+ {
+ dist_min = dist;
+ index = i;
+ }
+ }
+
+
+
+ /* Reading the selected vector */
+
+ p_dico = &dico[ index<<2];
+ lsf_r1[0] = *p_dico++;
+ lsf_r1[1] = *p_dico++;
+ lsf_r2[0] = *p_dico++;
+ lsf_r2[1] = *p_dico;
+
+ return index;
+
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Vq_subvec_s
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsf_r1 -- array of type Word16 -- 1st LSF residual vector, Q15
+ lsf_r2 -- array of type Word16 -- 2nd LSF residual vector, Q15
+ dico -- pointer to const Word16 -- quantization codebook, Q15
+ wf1 -- array of type Word16 -- 1st LSF weighting factors, Q13
+ wf2 -- array of type Word16 -- 2nd LSF weighting factors, Q13
+ dico_size -- Word16 -- size of quantization codebook, Q0
+
+ Outputs:
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ Word16 -- quantization index, Q0
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the quantization of a 4-dimensional subvector.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ q_plsf_5.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+
+/* Quantization of a 4 dimensional subvector with a signed codebook */
+
+static Word16 Vq_subvec_s( /* o : quantization index Q0 */
+ Word16 *lsf_r1, /* i : 1st LSF residual vector Q15 */
+ Word16 *lsf_r2, /* i : and LSF residual vector Q15 */
+ const Word16 *dico, /* i : quantization codebook Q15 */
+ Word16 *wf1, /* i : 1st LSF weighting factors Q13 */
+ Word16 *wf2, /* i : 2nd LSF weighting factors Q13 */
+ Word16 dico_size, /* i : size of quantization codebook Q0 */
+ Flag *pOverflow) /* o : overflow indicator */
+{
+ Word16 index = 0; /* initialization only needed to keep gcc silent */
+ Word16 sign = 0; /* initialization only needed to keep gcc silent */
+ Word16 i;
+ Word16 temp;
+ Word16 temp1;
+ Word16 temp2;
+ const Word16 *p_dico;
+ Word32 dist_min;
+ Word32 dist1;
+ Word32 dist2;
+
+ Word16 lsf_r1_0;
+ Word16 lsf_r1_1;
+ Word16 lsf_r2_0;
+ Word16 lsf_r2_1;
+
+ Word16 wf1_0;
+ Word16 wf1_1;
+ Word16 wf2_0;
+ Word16 wf2_1;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ dist_min = MAX_32;
+ p_dico = dico;
+
+
+ lsf_r1_0 = lsf_r1[0];
+ lsf_r1_1 = lsf_r1[1];
+ lsf_r2_0 = lsf_r2[0];
+ lsf_r2_1 = lsf_r2[1];
+
+ wf1_0 = wf1[0];
+ wf1_1 = wf1[1];
+ wf2_0 = wf2[0];
+ wf2_1 = wf2[1];
+
+ for (i = 0; i < dico_size; i++)
+ {
+ /* test positive */
+ temp = *p_dico++;
+ temp1 = lsf_r1_0 - temp;
+ temp2 = lsf_r1_0 + temp;
+ temp1 = ((Word32)wf1_0 * temp1) >> 15;
+ temp2 = ((Word32)wf1_0 * temp2) >> 15;
+ dist1 = ((Word32)temp1 * temp1);
+ dist2 = ((Word32)temp2 * temp2);
+
+ temp = *p_dico++;
+ temp1 = lsf_r1_1 - temp;
+ temp2 = lsf_r1_1 + temp;
+ temp1 = ((Word32)wf1_1 * temp1) >> 15;
+ temp2 = ((Word32)wf1_1 * temp2) >> 15;
+ dist1 += ((Word32)temp1 * temp1);
+ dist2 += ((Word32)temp2 * temp2);
+
+ if ((dist1 >= dist_min) && (dist2 >= dist_min))
+ {
+ p_dico += 2;
+ continue;
+ }
+
+ temp = *p_dico++;
+ temp1 = lsf_r2_0 - temp;
+ temp2 = lsf_r2_0 + temp;
+ temp1 = ((Word32)wf2_0 * temp1) >> 15;
+ temp2 = ((Word32)wf2_0 * temp2) >> 15;
+ dist1 += ((Word32)temp1 * temp1);
+ dist2 += ((Word32)temp2 * temp2);
+
+ temp = *p_dico++;
+ temp1 = lsf_r2_1 - temp;
+ temp2 = lsf_r2_1 + temp;
+ temp1 = ((Word32)wf2_1 * temp1) >> 15;
+ temp2 = ((Word32)wf2_1 * temp2) >> 15;
+ dist1 += ((Word32)temp1 * temp1);
+ dist2 += ((Word32)temp2 * temp2);
+
+ if (dist1 < dist_min)
+ {
+ dist_min = dist1;
+ index = i;
+ sign = 0;
+ }
+
+ /* test negative */
+
+ if (dist2 < dist_min)
+ {
+ dist_min = dist2;
+ index = i;
+ sign = 1;
+ }
+ }
+
+ /* Reading the selected vector */
+
+ p_dico = &dico[index<<2];
+ index <<= 1;
+ if (sign)
+ {
+ lsf_r1[0] = - (*p_dico++);
+ lsf_r1[1] = - (*p_dico++);
+ lsf_r2[0] = - (*p_dico++);
+ lsf_r2[1] = - (*p_dico);
+ index += 1;
+ }
+ else
+ {
+ lsf_r1[0] = *p_dico++;
+ lsf_r1[1] = *p_dico++;
+ lsf_r2[0] = *p_dico++;
+ lsf_r2[1] = *p_dico;
+ }
+
+ return index;
+
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Q_plsf_5
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+ Inputs:
+ st -- pointer to Q_plsfState -- state information
+ lsp1 -- array of type Word16 -- 1st LSP vector, Q15
+ lsp2 -- array of type Word16 -- 2nd LSP vector, Q15
+
+ Outputs:
+ lps1_q -- array of type Word16 -- quantized 1st LSP vector, Q15
+ lps2_q -- array of type Word16 -- quantized 2nd LSP vector, Q15
+ indices -- array of type Word16 -- quantization indices of 5 matrics, Q0
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ mean_lsf_5[];
+
+ dico1_lsf_5[];
+ dico2_lsf_5[];
+ dico3_lsf_5[];
+ dico4_lsf_5[];
+ dico5_lsf_5[];
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Quantization of 2 sets of LSF parameters using 1st order MA
+ prediction and split by 5 matrix quantization (split-MQ)
+
+ DESCRIPTION:
+
+ p[i] = pred_factor*past_rq[i]; i=0,...,m-1
+ r1[i]= lsf1[i] - p[i]; i=0,...,m-1
+ r2[i]= lsf2[i] - p[i]; i=0,...,m-1
+ where:
+ lsf1[i] 1st mean-removed LSF vector.
+ lsf2[i] 2nd mean-removed LSF vector.
+ r1[i] 1st residual prediction vector.
+ r2[i] 2nd residual prediction vector.
+ past_r2q[i] Past quantized residual (2nd vector).
+
+ The residual vectors r1[i] and r2[i] are jointly quantized using
+ split-MQ with 5 codebooks. Each 4th dimension submatrix contains 2
+ elements from each residual vector. The 5 submatrices are as follows:
+ {r1[0], r1[1], r2[0], r2[1]}; {r1[2], r1[3], r2[2], r2[3]};
+ {r1[4], r1[5], r2[4], r2[5]}; {r1[6], r1[7], r2[6], r2[7]};
+ {r1[8], r1[9], r2[8], r2[9]}
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ q_plsf_5.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Q_plsf_5(
+ Q_plsfState *st,
+ Word16 *lsp1, /* i : 1st LSP vector, Q15 */
+ Word16 *lsp2, /* i : 2nd LSP vector, Q15 */
+ Word16 *lsp1_q, /* o : quantized 1st LSP vector, Q15 */
+ Word16 *lsp2_q, /* o : quantized 2nd LSP vector, Q15 */
+ Word16 *indice, /* o : quantization indices of 5 matrices, Q0 */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ Word16 i;
+ Word16 lsf1[M];
+ Word16 lsf2[M];
+ Word16 wf1[M];
+ Word16 wf2[M];
+ Word16 lsf_p[M];
+ Word16 lsf_r1[M];
+ Word16 lsf_r2[M];
+ Word16 lsf1_q[M];
+ Word16 lsf2_q[M];
+
+ Word16 *p_lsf_p;
+ Word16 *p_lsf1;
+ Word16 *p_lsf2;
+ Word16 *p_lsf_r1;
+ Word16 *p_lsf_r2;
+
+ /* convert LSFs to normalize frequency domain 0..16384 */
+
+ Lsp_lsf(lsp1, lsf1, M, pOverflow);
+ Lsp_lsf(lsp2, lsf2, M, pOverflow);
+
+ /* Compute LSF weighting factors (Q13) */
+
+ Lsf_wt(lsf1, wf1, pOverflow);
+ Lsf_wt(lsf2, wf2, pOverflow);
+
+ /* Compute predicted LSF and prediction error */
+
+ p_lsf_p = &lsf_p[0];
+ p_lsf1 = &lsf1[0];
+ p_lsf2 = &lsf2[0];
+ p_lsf_r1 = &lsf_r1[0];
+ p_lsf_r2 = &lsf_r2[0];
+
+ for (i = 0; i < M; i++)
+ {
+ *(p_lsf_p) = mean_lsf_5[i] +
+ (((Word32)st->past_rq[i] * LSP_PRED_FAC_MR122) >> 15);
+
+ *(p_lsf_r1++) = *(p_lsf1++) - *(p_lsf_p);
+ *(p_lsf_r2++) = *(p_lsf2++) - *(p_lsf_p++);
+ }
+
+ /*---- Split-MQ of prediction error ----*/
+
+ indice[0] = Vq_subvec(&lsf_r1[0], &lsf_r2[0], dico1_lsf_5,
+ &wf1[0], &wf2[0], DICO1_5_SIZE, pOverflow);
+
+ indice[1] = Vq_subvec(&lsf_r1[2], &lsf_r2[2], dico2_lsf_5,
+ &wf1[2], &wf2[2], DICO2_5_SIZE, pOverflow);
+
+ indice[2] = Vq_subvec_s(&lsf_r1[4], &lsf_r2[4], dico3_lsf_5,
+ &wf1[4], &wf2[4], DICO3_5_SIZE, pOverflow);
+
+ indice[3] = Vq_subvec(&lsf_r1[6], &lsf_r2[6], dico4_lsf_5,
+ &wf1[6], &wf2[6], DICO4_5_SIZE, pOverflow);
+
+ indice[4] = Vq_subvec(&lsf_r1[8], &lsf_r2[8], dico5_lsf_5,
+ &wf1[8], &wf2[8], DICO5_5_SIZE, pOverflow);
+
+ /* Compute quantized LSFs and update the past quantized residual */
+
+ p_lsf_r1 = &lsf_r1[0];
+ p_lsf_r2 = &lsf_r2[0];
+ p_lsf_p = &lsf_p[0];
+ p_lsf1 = &lsf1_q[0];
+ p_lsf2 = &lsf2_q[0];
+
+
+ for (i = 0; i < M; i++)
+ {
+ *(p_lsf1++) = *(p_lsf_r1++) + *(p_lsf_p);
+ *(p_lsf2++) = *(p_lsf_r2) + *(p_lsf_p++);
+ st->past_rq[i] = *(p_lsf_r2++);
+ }
+
+ /* verification that LSFs has minimum distance of LSF_GAP */
+
+ Reorder_lsf(lsf1_q, LSF_GAP, M, pOverflow);
+ Reorder_lsf(lsf2_q, LSF_GAP, M, pOverflow);
+
+ /* convert LSFs to the cosine domain */
+
+ Lsf_lsp(lsf1_q, lsp1_q, M, pOverflow);
+ Lsf_lsp(lsf2_q, lsp2_q, M, pOverflow);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: q_plsf_5_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "q_plsf_5_tbl.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+#define NB_QUA_PITCH 16
+#define NB_QUA_CODE 32
+
+
+#define DICO1_5_SIZE 128
+#define DICO2_5_SIZE 256
+#define DICO3_5_SIZE 256
+#define DICO4_5_SIZE 256
+#define DICO5_5_SIZE 64
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+ /* LSF means ->normalize frequency domain */
+
+ const Word16 mean_lsf_5[10] =
+ {
+ 1384,
+ 2077,
+ 3420,
+ 5108,
+ 6742,
+ 8122,
+ 9863,
+ 11092,
+ 12714,
+ 13701
+ };
+
+ const Word16 dico1_lsf_5[DICO1_5_SIZE * 4] =
+ {
+ -451, -1065, -529, -1305,
+ -450, -756, -497, -863,
+ -384, -619, -413, -669,
+ -317, -538, -331, -556,
+ -414, -508, -424, -378,
+ -274, -324, -434, -614,
+ -226, -500, -232, -514,
+ -263, -377, -298, -410,
+ -151, -710, -174, -818,
+ -149, -412, -156, -429,
+ -288, -462, -186, -203,
+ -170, -302, -191, -321,
+ -131, -147, -297, -395,
+ -228, -214, -245, -192,
+ -67, -316, -71, -327,
+ -104, -205, -94, -183,
+ -143, -38, -193, -95,
+ 16, -76, -124, -248,
+ 23, -237, 24, -244,
+ 18, -136, 44, -111,
+ -33, -24, -25, 0,
+ 149, 19, 23, -143,
+ 158, -169, 174, -181,
+ 133, -55, 165, -26,
+ 111, 84, 98, 75,
+ 87, 183, -115, -11,
+ -8, 130, 11, 170,
+ 254, 77, 205, 17,
+ 183, 112, 262, 194,
+ 202, 287, 95, 189,
+ -42, -105, 234, 179,
+ 39, 186, 163, 345,
+ 332, 199, 299, 161,
+ -54, 285, -78, 281,
+ -133, 141, -182, 111,
+ 249, 341, 271, 364,
+ 93, 403, 75, 391,
+ 92, 510, -138, 220,
+ -185, -29, -34, 361,
+ -115, 320, 3, 554,
+ 99, 286, 218, 591,
+ -245, 406, -268, 453,
+ 0, 580, 25, 606,
+ 275, 532, 148, 450,
+ -73, 739, -285, 518,
+ -288, 94, -203, 674,
+ -140, -74, 205, 714,
+ -114, 299, 176, 923,
+ 182, 557, 240, 705,
+ -16, 513, 485, 593,
+ 293, 384, 451, 617,
+ -38, 50, 563, 529,
+ 303, 209, 459, 363,
+ 433, 452, 450, 454,
+ 367, 606, 477, 741,
+ 432, 353, 368, 267,
+ 361, 716, 273, 583,
+ 453, 166, 510, 172,
+ 201, 629, 274, 191,
+ 568, 639, 302, 298,
+ 634, 387, 643, 350,
+ 587, 560, 612, 565,
+ 600, 788, 487, 672,
+ 512, 1015, 321, 333,
+ 357, 854, -125, 413,
+ 474, 712, 17, -151,
+ 564, 285, 270, -241,
+ 971, 889, 489, 220,
+ 510, 896, 549, 924,
+ 327, 825, 290, 911,
+ 540, 1108, 158, 805,
+ 199, 957, 511, 730,
+ 100, 874, 13, 791,
+ 435, 632, 676, 972,
+ 249, 900, 467, 1218,
+ 781, 1074, 585, 785,
+ -23, 669, 267, 1043,
+ 619, 1084, 615, 1145,
+ 622, 905, 916, 1049,
+ 80, 331, 584, 1075,
+ 89, 639, 988, 961,
+ 770, 720, 798, 699,
+ 492, 447, 899, 627,
+ 271, 1188, 725, 1333,
+ 87, 603, 832, 1603,
+ 616, 1127, 890, 1505,
+ 1000, 1156, 866, 1009,
+ 995, 827, 1149, 858,
+ 817, 1450, 773, 1320,
+ 500, 1389, 312, 1153,
+ -20, 1084, 64, 1283,
+ 2, 1172, 399, 1869,
+ 514, 1706, 502, 1636,
+ 886, 1522, 416, 600,
+ 1131, 1350, 1275, 1390,
+ 889, 1795, 914, 1766,
+ 227, 1183, 1250, 1826,
+ 505, 1854, 919, 2353,
+ -199, 431, 152, 1735,
+ -213, -28, 392, 1334,
+ -153, -52, 978, 1151,
+ -323, -400, 813, 1703,
+ -136, 84, 1449, 2015,
+ -331, -143, -137, 1192,
+ -256, 534, -157, 1031,
+ -307, -439, 542, 731,
+ -329, -420, -97, 616,
+ -362, -168, -322, 366,
+ -247, -110, -211, 89,
+ -196, -309, 20, 59,
+ -364, -463, -286, 89,
+ -336, 175, -432, 141,
+ -379, -190, -434, -196,
+ -79, 150, -278, -227,
+ -280, 166, -555, -422,
+ -155, 541, -366, 54,
+ -29, -83, -301, -774,
+ 186, 628, -397, -264,
+ 242, 293, -197, -585,
+ 124, 410, 53, -133,
+ 10, 340, -570, -1065,
+ 65, -446, 68, -493,
+ 383, 937, -357, -711,
+ -359, -250, -677, -1068,
+ 292, -26, 363, 6,
+ 607, 1313, -127, -10,
+ 1513, 1886, 713, 972,
+ 1469, 2181, 1443, 2016
+ };
+
+ const Word16 dico2_lsf_5[DICO2_5_SIZE * 4] =
+ {
+ -1631, -1600, -1796, -2290,
+ -1027, -1770, -1100, -2025,
+ -1277, -1388, -1367, -1534,
+ -947, -1461, -972, -1524,
+ -999, -1222, -1020, -1172,
+ -815, -987, -992, -1371,
+ -1216, -1006, -1289, -1094,
+ -744, -1268, -755, -1293,
+ -862, -923, -905, -984,
+ -678, -1051, -685, -1050,
+ -1087, -985, -1062, -679,
+ -989, -641, -1127, -976,
+ -762, -654, -890, -806,
+ -833, -1091, -706, -629,
+ -621, -806, -640, -812,
+ -775, -634, -779, -543,
+ -996, -565, -1075, -580,
+ -546, -611, -572, -619,
+ -760, -290, -879, -526,
+ -823, -462, -795, -253,
+ -553, -415, -589, -439,
+ -533, -340, -692, -935,
+ -505, -772, -702, -1131,
+ -263, -306, -971, -483,
+ -445, -74, -555, -548,
+ -614, -129, -693, -234,
+ -396, -246, -475, -250,
+ -265, -404, -376, -514,
+ -417, -510, -300, -313,
+ -334, -664, -463, -814,
+ -386, -704, -337, -615,
+ -234, -201, -233, -239,
+ -167, -567, -203, -619,
+ -147, -415, -115, -352,
+ -166, -750, -171, -761,
+ -270, -879, -264, -903,
+ -367, -744, 43, -475,
+ 14, -653, 43, -670,
+ 11, -448, -59, -521,
+ -126, -119, -155, -613,
+ -42, -863, -27, -931,
+ 136, -483, 183, -468,
+ 55, -298, 55, -304,
+ 313, -609, 313, -720,
+ 322, -167, 100, -541,
+ -3, -119, -111, -187,
+ 233, -236, 260, -234,
+ 26, -165, 134, -45,
+ -40, -549, 360, -203,
+ 378, -388, 450, -383,
+ 275, 20, 182, -103,
+ 246, -111, 431, 37,
+ 462, -146, 487, -157,
+ -284, -59, 503, -184,
+ 24, 53, -3, 54,
+ 122, 259, 333, 66,
+ 484, 104, 436, 68,
+ 195, 116, 190, 206,
+ 269, -9, 482, 352,
+ 382, 285, 399, 277,
+ 452, 256, 69, 186,
+ 13, 297, -13, 259,
+ -95, 30, 56, 394,
+ 196, 425, 205, 456,
+ 281, 577, 15, 191,
+ 375, 290, 407, 576,
+ -56, 227, 544, 405,
+ 0, 549, -92, 528,
+ -229, 351, -245, 338,
+ -362, 435, 167, 527,
+ -75, 302, 91, 824,
+ 129, 599, 496, 679,
+ 186, 749, 153, 737,
+ -281, 600, -348, 615,
+ -236, 769, 41, 881,
+ 38, 890, -220, 841,
+ -357, 883, -393, 903,
+ -634, 474, -444, 850,
+ -175, 678, -493, 242,
+ -519, 785, -714, 582,
+ -541, 366, -543, 434,
+ -597, 500, -765, 222,
+ -702, 917, -743, 962,
+ -869, 501, -899, 548,
+ -379, 200, -435, 157,
+ -819, 214, -861, 157,
+ -614, 40, -632, 94,
+ -883, -54, -741, 516,
+ -501, 298, -614, -171,
+ -870, -161, -865, -23,
+ -818, 93, -1015, -267,
+ -662, -359, -549, 2,
+ -442, -121, -377, 0,
+ -227, 33, -414, -126,
+ -129, 212, -934, 34,
+ -1082, -282, -1119, -268,
+ -710, -825, -420, -191,
+ -1076, -928, -917, -93,
+ -628, -358, 97, 7,
+ -206, -393, -101, 24,
+ -203, 38, -168, 83,
+ -599, -423, -279, 426,
+ -700, 118, -75, 206,
+ -981, -673, -680, 417,
+ -367, 37, -279, 474,
+ -129, -318, 319, 296,
+ -626, -39, 343, 602,
+ -696, -39, -303, 940,
+ 104, 233, -380, 137,
+ -36, 269, -75, -214,
+ 120, 43, -529, -477,
+ 459, 164, -202, -229,
+ -49, -167, 609, 792,
+ 98, -220, 915, 148,
+ 293, 283, 869, 91,
+ 575, 394, 326, -78,
+ 717, 67, 365, -323,
+ 616, -36, 731, 27,
+ 619, 238, 632, 273,
+ 448, 99, 801, 476,
+ 869, 273, 685, 64,
+ 789, 72, 1021, 217,
+ 793, 459, 734, 360,
+ 646, 480, 360, 322,
+ 429, 464, 638, 430,
+ 756, 363, 1000, 404,
+ 683, 528, 602, 615,
+ 655, 413, 946, 687,
+ 937, 602, 904, 604,
+ 555, 737, 786, 662,
+ 467, 654, 362, 589,
+ 929, 710, 498, 478,
+ 415, 420, 693, 883,
+ 813, 683, 781, 925,
+ 913, 939, 726, 732,
+ 491, 853, 531, 948,
+ 734, 963, 315, 808,
+ 761, 755, 1144, 760,
+ 655, 1076, 826, 1057,
+ 1091, 838, 1003, 808,
+ 1047, 1133, 659, 1101,
+ 992, 1050, 1074, 1075,
+ 971, 694, 1226, 1054,
+ 571, 841, 884, 1404,
+ 1379, 1096, 1080, 861,
+ 1231, 735, 1284, 760,
+ 1272, 991, 1367, 1053,
+ 1257, 700, 1050, 534,
+ 988, 453, 1264, 599,
+ 1140, 679, 1621, 815,
+ 1384, 521, 1317, 393,
+ 1564, 805, 1448, 686,
+ 1068, 648, 875, 307,
+ 1083, 361, 1047, 317,
+ 1417, 964, 675, 571,
+ 1152, 79, 1114, -47,
+ 1530, 311, 1721, 314,
+ 1166, 689, 514, -94,
+ 349, 282, 1412, 328,
+ 1025, 487, -65, 57,
+ 805, 970, 36, 62,
+ 769, -263, 791, -346,
+ 637, 699, -137, 620,
+ 534, 541, -735, 194,
+ 711, 300, -268, -863,
+ 926, 769, -708, -428,
+ 506, 174, -892, -630,
+ 435, 547, -1435, -258,
+ 621, 471, -1018, -1368,
+ -393, 521, -920, -686,
+ -25, 20, -982, -1156,
+ 340, 9, -1558, -1135,
+ -352, 48, -1579, -402,
+ -887, 6, -1156, -888,
+ -548, -352, -1643, -1168,
+ -159, 610, -2024, -963,
+ -225, 193, -1656, -1960,
+ -245, -493, -964, -1680,
+ -936, -635, -1299, -1744,
+ -1388, -604, -1540, -835,
+ -1397, -135, -1588, -290,
+ -1670, -712, -2011, -1632,
+ -1663, -27, -2258, -811,
+ -1157, 184, -1265, 189,
+ -1367, 586, -2011, 201,
+ -790, 712, -1210, 3,
+ -1033, 808, -1251, 830,
+ -111, 635, -1636, 447,
+ -463, -949, -445, -928,
+ -504, -1162, -501, -1211,
+ 144, -351, -372, -1052,
+ -283, -1059, -279, -1123,
+ -575, -1438, -587, -1614,
+ -935, -984, 229, 690,
+ -921, -719, -403, 1362,
+ -685, -465, 874, 397,
+ -509, -46, 317, 1334,
+ -485, 456, 813, 439,
+ -411, 339, 898, 1067,
+ -425, 46, 1441, 497,
+ -909, -800, 1465, 1046,
+ -254, -321, 1430, 1165,
+ 68, 350, 1034, 666,
+ 370, 11, 1311, 790,
+ 143, 232, 1041, 1562,
+ -114, 663, 1616, 1078,
+ 454, 579, 1275, 1040,
+ -76, 909, 752, 1067,
+ 153, 512, 348, 1214,
+ 614, 385, 1843, 808,
+ 269, 1034, 203, 1086,
+ 652, 1017, 1783, 1130,
+ 429, 1327, 387, 1384,
+ -49, 1183, -72, 1215,
+ -416, 1001, 544, 1749,
+ -352, 1223, -502, 1199,
+ -589, 569, -227, 1630,
+ -142, 1578, -230, 1715,
+ -714, 1288, -838, 1398,
+ 1131, 1357, -208, 1232,
+ 437, 965, -929, 818,
+ 811, 1410, 859, 1507,
+ 164, 1212, 1387, 1793,
+ 484, 1874, 456, 2063,
+ 996, 1170, 1326, 1402,
+ 1316, 1360, 1135, 1262,
+ 1234, 1618, 1361, 1768,
+ 1421, 1227, 1584, 1347,
+ 854, 672, 1685, 1566,
+ 1139, 1270, 2016, 1825,
+ 1773, 1581, 1532, 1460,
+ 1487, 946, 1659, 1021,
+ 1744, 1212, 1392, 977,
+ 1772, 1161, 1826, 1164,
+ 1718, 1429, 1973, 1591,
+ 1185, 864, 2132, 1061,
+ 1799, 814, 1838, 757,
+ 2104, 1315, 2054, 1258,
+ 2113, 915, 2331, 930,
+ 1467, 1147, 2590, 1439,
+ 2245, 1744, 2090, 1620,
+ 2358, 1454, 2666, 1506,
+ 1876, 1837, 2070, 1975,
+ 1739, 1577, 682, 1289,
+ 1584, 2045, 1454, 2098,
+ 2498, 2004, 2711, 2066,
+ 726, 1588, 2756, 2336,
+ 228, 847, 2456, 1659,
+ 36, 301, 1942, 1957,
+ -446, -96, 2154, 1396,
+ 1533, 1101, 14, 608,
+ -923, -732, 1383, 1982,
+ 1345, 952, -680, 321,
+ 1281, 1268, -1594, 365,
+ 941, 946, -1737, -822,
+ 2374, 2787, 1821, 2788
+ };
+
+ const Word16 dico3_lsf_5[DICO3_5_SIZE * 4] =
+ {
+ -1812, -2275, -1879, -2537,
+ -1640, -1848, -1695, -2004,
+ -1220, -1912, -1221, -2106,
+ -1559, -1588, -1573, -1556,
+ -1195, -1615, -1224, -1727,
+ -1359, -1151, -1616, -1948,
+ -1274, -1391, -1305, -1403,
+ -1607, -1179, -1676, -1311,
+ -1443, -1478, -1367, -898,
+ -1256, -1059, -1331, -1134,
+ -982, -1133, -1149, -1504,
+ -1080, -1308, -1020, -1183,
+ -980, -1486, -967, -1495,
+ -988, -922, -1047, -1077,
+ -838, -1179, -858, -1222,
+ -1131, -1041, -1064, -767,
+ -872, -1157, -701, -880,
+ -706, -906, -774, -1016,
+ -578, -1080, -801, -1478,
+ -591, -1111, -592, -1146,
+ -713, -1388, -640, -1376,
+ -597, -1059, -416, -903,
+ -686, -832, -661, -708,
+ -444, -868, -490, -921,
+ -374, -776, -619, -1170,
+ -585, -549, -769, -795,
+ -435, -659, -530, -741,
+ -498, -837, -357, -597,
+ -279, -871, -243, -887,
+ -282, -665, -280, -667,
+ -165, -560, -394, -903,
+ -362, -410, -448, -583,
+ -409, -574, -313, -357,
+ -637, -548, -570, -436,
+ -896, -504, -382, -757,
+ -58, -481, -165, -618,
+ -191, -374, -234, -382,
+ -222, -683, -25, -480,
+ -418, -359, -730, -353,
+ -324, -157, -432, -322,
+ -394, -303, -284, -104,
+ -601, -289, -556, -196,
+ -588, -150, -659, -608,
+ -473, -24, -68, -448,
+ -474, -8, -506, -45,
+ -748, -184, -844, -252,
+ -901, -91, -584, -97,
+ -652, 138, -764, -131,
+ -678, -12, -670, 165,
+ -259, -3, -840, -107,
+ -909, 37, -992, 44,
+ -854, -415, -839, 13,
+ -1001, -271, -1026, -309,
+ -798, -478, -832, -488,
+ -943, 168, -1112, -387,
+ -1185, -101, -1183, -40,
+ -941, -316, -1030, -770,
+ -1044, -625, -1081, -538,
+ -1224, -299, -1312, -436,
+ -1197, -663, -1167, -161,
+ -1216, -690, -1237, -831,
+ -1432, -720, -1403, -493,
+ -898, -740, -922, -801,
+ -1102, -402, -1579, -964,
+ -1061, -638, -1269, -1438,
+ -1499, -934, -1502, -895,
+ -1598, -564, -1723, -717,
+ -606, -597, -1166, -1085,
+ -1369, -468, -1946, -1493,
+ -1838, -953, -1932, -931,
+ -1499, -188, -1635, -421,
+ -1457, -338, -1448, -22,
+ -1942, -422, -2006, -249,
+ -496, -114, -1910, -755,
+ -1289, 174, -1451, -109,
+ -482, -257, -1221, -508,
+ -1617, 151, -1694, 208,
+ -654, 107, -1651, 29,
+ -1141, 279, -1215, 306,
+ -1228, -506, -730, -175,
+ -1236, -101, -969, 551,
+ -870, 278, -823, 315,
+ -563, 376, -1051, 228,
+ -507, 280, -599, 281,
+ -758, 253, -305, 379,
+ -755, -134, -611, 660,
+ -824, 536, -817, 646,
+ -413, 49, -341, 177,
+ -453, 526, -482, 589,
+ -71, 339, -657, 264,
+ -244, 295, -237, 315,
+ -387, 569, -506, -9,
+ -377, 14, -160, 661,
+ -216, 40, -308, -46,
+ 95, 214, -242, 167,
+ -86, 192, -56, 27,
+ -76, 31, 36, 309,
+ -106, -182, -113, 74,
+ -441, -22, 23, 139,
+ 81, -11, 44, 15,
+ -87, -137, -118, -207,
+ -158, -58, 272, -92,
+ -156, -441, 8, -136,
+ 128, -221, 101, -218,
+ 40, -197, -76, -456,
+ 9, -445, 33, -423,
+ 226, 60, 73, -222,
+ 156, -399, 280, -318,
+ 245, -341, 166, -499,
+ 339, -190, 327, -219,
+ 325, -137, -89, -596,
+ 100, -627, 144, -677,
+ 487, 28, 252, -391,
+ 214, -41, 282, -28,
+ 99, -286, 331, 49,
+ 459, -388, 565, -369,
+ 436, 28, 336, -9,
+ 397, -167, 618, 34,
+ 596, -17, 561, -140,
+ 299, 79, 522, 125,
+ 203, 2, 244, 288,
+ 255, 211, 175, 82,
+ 596, 187, 517, 108,
+ 381, 255, 365, 297,
+ 497, 352, 327, -82,
+ 25, 210, 371, 245,
+ 261, 3, 545, 449,
+ 140, 294, 44, 295,
+ 212, 347, 244, 494,
+ 331, 528, 201, 307,
+ 349, 411, 613, 284,
+ 614, 413, 464, 322,
+ 624, 397, 97, 200,
+ -160, 384, 149, 362,
+ 495, 525, 269, 585,
+ 33, 491, -121, 433,
+ 427, 611, 498, 516,
+ 171, 443, 497, 666,
+ 440, 275, 566, 575,
+ 146, 639, 155, 670,
+ -33, 173, 212, 696,
+ -166, 601, -191, 695,
+ -489, 503, 175, 742,
+ 214, 476, 372, 1083,
+ 578, 530, 586, 777,
+ 425, 874, 315, 841,
+ 374, 848, -165, 565,
+ 35, 991, -39, 1062,
+ 329, 712, 786, 840,
+ 645, 795, 661, 676,
+ 571, 918, 632, 1079,
+ 673, 817, 318, 388,
+ 874, 1012, 564, 848,
+ 880, 620, 557, 479,
+ 671, 453, 692, 468,
+ 840, 642, 844, 645,
+ 506, 428, 897, 567,
+ 837, 387, 962, 499,
+ 691, 561, 939, 926,
+ 783, 296, 790, 268,
+ 1028, 530, 874, 329,
+ 548, 143, 675, 291,
+ 503, 66, 1041, 359,
+ 786, 97, 805, 33,
+ 837, 470, 511, 49,
+ 1092, 327, 1174, 323,
+ 3, 242, 872, 474,
+ 689, 429, 1329, 678,
+ 1042, 620, 1109, 664,
+ 321, 193, 889, 950,
+ 1153, 874, 893, 635,
+ 877, 862, 948, 913,
+ 1293, 665, 1320, 639,
+ 997, 793, 1402, 1030,
+ 1176, 1012, 1110, 959,
+ 1410, 925, 1403, 915,
+ 543, 862, 1116, 1222,
+ 835, 1190, 835, 1190,
+ 959, 1148, 1147, 1376,
+ 1300, 1193, 1415, 1231,
+ 1335, 1341, 746, 1092,
+ 1711, 1283, 1389, 1073,
+ 1334, 1566, 1153, 1475,
+ 1645, 1137, 1825, 1220,
+ 1056, 1382, 1521, 1730,
+ 1632, 1545, 1620, 1542,
+ 855, 1596, 865, 1667,
+ 693, 885, 1716, 1519,
+ 1167, 1296, 2209, 1760,
+ 1952, 1493, 2020, 1482,
+ 1534, 1866, 1694, 2008,
+ 1566, 748, 1761, 825,
+ 294, 1392, 1084, 2058,
+ 621, 1315, 365, 1287,
+ 198, 1028, 488, 1408,
+ 249, 403, 1014, 1561,
+ 324, 363, 1645, 1044,
+ 193, 367, 2034, 1859,
+ -251, 579, 750, 994,
+ -243, 30, 1325, 879,
+ -28, -169, 624, 917,
+ -453, 159, 186, 1370,
+ -614, 6, 537, 392,
+ -94, -291, 781, 229,
+ -128, -298, 245, 491,
+ -701, -648, 972, 789,
+ -501, -640, 178, 255,
+ -365, -390, -255, 317,
+ -958, -294, -191, 228,
+ -775, -447, 157, -237,
+ -657, -720, -407, 92,
+ -117, -611, 334, -230,
+ -679, -1084, -144, -317,
+ -901, -861, -738, -360,
+ -85, -727, -90, -787,
+ 100, -22, -391, -263,
+ -56, -73, -337, -754,
+ 5, -189, -706, -624,
+ 89, -344, -135, -1113,
+ -353, -237, -684, -1135,
+ -275, -1102, -269, -1203,
+ 152, 145, -722, -1232,
+ 49, 80, -1248, -776,
+ -248, 391, -732, -547,
+ 469, 218, -255, -864,
+ 69, 366, -166, -485,
+ -688, 191, -1212, -1196,
+ -170, -169, -1308, -1631,
+ 321, 470, -1419, -1243,
+ -64, 272, -1361, -248,
+ 492, 565, -721, -609,
+ 195, 485, -573, -133,
+ 427, 202, -171, -118,
+ 199, 575, 2, -31,
+ 694, 755, -1366, -39,
+ 552, 557, -489, 271,
+ 680, 537, 13, -453,
+ 855, 954, -133, -52,
+ -81, 738, -1169, 637,
+ 1055, 1059, -95, 676,
+ 1259, 1081, 489, 305,
+ -449, 954, -534, 996,
+ -969, 866, -1058, 1059,
+ -1294, 618, -1416, 617,
+ -458, 1366, -159, 1821,
+ -774, -528, -14, 1110,
+ -1202, -901, -772, 433,
+ -1256, -1255, -1011, -302,
+ -602, -585, -759, -1618,
+ -760, -1549, -840, -1921,
+ -816, -539, -1769, -2235,
+ -227, -36, -2034, -1831,
+ -2107, -1126, -2471, -1816,
+ -1470, 252, -2701, -415,
+ -571, -467, 1509, 1554,
+ 2180, 1975, 2326, 2020
+ };
+
+ const Word16 dico4_lsf_5[DICO4_5_SIZE * 4] =
+ {
+ -1857, -1681, -1857, -1755,
+ -2056, -1150, -2134, -1654,
+ -1619, -1099, -1704, -1131,
+ -1345, -1608, -1359, -1638,
+ -1338, -1293, -1325, -1265,
+ -1664, -1649, -1487, -851,
+ -1346, -1832, -1413, -2188,
+ -1282, -681, -1785, -1649,
+ -966, -1082, -1183, -1676,
+ -1054, -1073, -1142, -1158,
+ -1207, -744, -1274, -997,
+ -934, -1383, -927, -1416,
+ -1010, -1305, -783, -955,
+ -1049, -900, -993, -817,
+ -737, -823, -972, -1189,
+ -738, -1094, -738, -1154,
+ -784, -801, -810, -786,
+ -892, -520, -1000, -818,
+ -644, -965, -577, -882,
+ -541, -694, -671, -917,
+ -595, -642, -646, -615,
+ -956, -621, -925, -515,
+ -727, -483, -815, -485,
+ -840, -578, -440, -713,
+ -578, -325, -657, -670,
+ -386, -570, -441, -666,
+ -514, -787, -392, -529,
+ -522, -453, -487, -423,
+ -616, -585, -617, -157,
+ -662, -268, -680, -348,
+ -322, -323, -632, -444,
+ -304, -430, -332, -458,
+ -277, -468, -659, -793,
+ -319, -636, -227, -554,
+ -373, -347, -334, -210,
+ -456, -192, -530, -242,
+ -216, -198, -366, -370,
+ -338, -161, -409, -748,
+ -107, -380, -294, -643,
+ -223, -665, -234, -741,
+ -141, -496, -130, -510,
+ -139, -327, -172, -305,
+ -306, -580, -164, -263,
+ -262, -172, -67, -402,
+ 31, -366, -10, -436,
+ -86, -527, 71, -377,
+ -22, -609, -12, -678,
+ -67, -319, 63, -191,
+ 35, -181, -39, -242,
+ 126, -167, -140, -544,
+ 155, -297, 174, -297,
+ 38, -8, 117, -380,
+ 197, -452, 240, -522,
+ 223, -103, 110, -187,
+ 87, -155, 169, -47,
+ 157, 26, -83, -100,
+ 128, 80, 209, -62,
+ 6, 7, 22, 5,
+ 318, -20, 248, -45,
+ -200, -63, 156, -69,
+ 250, -183, 369, -126,
+ -113, -76, -142, -122,
+ -64, -254, -31, 35,
+ -177, -71, -7, 171,
+ 93, 27, 108, 212,
+ -330, -209, -123, -70,
+ -279, 95, -96, 20,
+ -188, -61, -314, 87,
+ -300, -78, -354, -134,
+ 11, 122, -140, 122,
+ -275, 152, -293, 140,
+ -82, 138, -321, -111,
+ -480, -156, -359, 76,
+ -254, -40, -635, -96,
+ -522, 79, -507, 8,
+ -268, 303, -539, 68,
+ -446, 61, -522, 306,
+ 111, 189, -435, 122,
+ -379, 166, -571, -398,
+ -632, -74, -747, -95,
+ -455, 194, -952, 83,
+ -798, 192, -755, 192,
+ -781, -162, -619, 234,
+ -663, -297, -488, -109,
+ -964, -132, -838, -68,
+ -843, 58, -1112, -86,
+ -805, -299, -944, -253,
+ -778, -50, -965, -549,
+ -352, -98, -992, -343,
+ -1117, -315, -1117, -307,
+ -1155, -374, -637, -230,
+ -1166, -43, -1299, -100,
+ -925, -393, -1274, -600,
+ -689, -130, -1479, -312,
+ -1321, -254, -1464, -442,
+ -1292, -613, -1261, -503,
+ -1501, -368, -1322, 26,
+ -1432, -66, -1743, -161,
+ -1644, -467, -1760, -548,
+ -1393, -568, -1556, -871,
+ -1495, -1034, -1387, -571,
+ -1917, -528, -1783, -123,
+ -1897, -231, -2054, -323,
+ -2052, -906, -1976, -567,
+ -1917, -620, -2047, -989,
+ -1077, -370, -2031, -704,
+ -2355, -749, -2740, -1089,
+ -1909, 159, -2012, 248,
+ -626, -123, -2339, -962,
+ -669, -408, -1379, -1174,
+ -452, -364, -1044, -735,
+ -132, 183, -1620, -752,
+ -547, -307, -777, -1261,
+ -98, 41, -880, -1091,
+ -257, 97, -1602, -1833,
+ 31, -26, -644, -561,
+ -180, -546, -385, -1095,
+ -410, -802, -414, -827,
+ -457, -970, -490, -1109,
+ -215, -916, -144, -937,
+ -493, -1269, -517, -1507,
+ 181, 101, -332, -889,
+ -836, -937, -559, -429,
+ -629, -547, -183, -337,
+ -545, -82, -250, -286,
+ 5, -132, -348, -252,
+ -293, -472, -158, 100,
+ -29, 197, -236, -424,
+ -861, -213, -140, -7,
+ -427, -443, 187, -97,
+ -684, -736, -293, 258,
+ -368, -152, -150, 392,
+ -609, 175, -142, 299,
+ -138, 152, -119, 329,
+ -486, -52, 293, 198,
+ -183, 117, 175, 331,
+ -58, -274, 231, 300,
+ -288, 330, -305, 372,
+ -111, 409, -9, 423,
+ 83, 256, 67, 367,
+ -19, 248, 91, 113,
+ -35, 406, -191, 154,
+ 238, 296, 5, 197,
+ 141, 221, 313, 198,
+ 211, 421, 244, 334,
+ 88, 426, -243, 454,
+ 202, 552, -5, 403,
+ 291, 185, 219, 301,
+ 251, 138, 128, 69,
+ 197, 288, -140, -61,
+ 188, 361, 197, 598,
+ 442, 273, 290, 143,
+ 472, 482, 157, 370,
+ 415, 321, 372, 385,
+ 402, 552, 155, 24,
+ 550, 263, -11, 21,
+ 360, 227, 147, -254,
+ 424, 97, 366, -13,
+ 375, 141, 449, 232,
+ 396, 507, 474, 272,
+ 701, 324, 362, -47,
+ 587, 148, 543, 69,
+ 400, -51, 561, 59,
+ 220, -10, 352, 147,
+ 206, 211, 653, 185,
+ 563, 297, 565, 284,
+ 594, 121, 766, 192,
+ 398, 118, 642, 434,
+ 233, 264, 481, 467,
+ 129, -165, 699, 239,
+ 90, 26, 342, 474,
+ -55, 27, 388, 94,
+ -172, 0, 725, 379,
+ -60, 337, 370, 465,
+ 95, 319, 806, 595,
+ 78, 260, 497, 851,
+ 210, 560, 458, 574,
+ -464, 202, 497, 625,
+ -202, 152, 48, 712,
+ -20, 566, 100, 715,
+ 455, 468, 411, 605,
+ 319, 646, 195, 615,
+ 401, 538, 680, 739,
+ 201, 667, 434, 954,
+ 454, 425, 646, 491,
+ 606, 681, 416, 508,
+ 497, 822, 426, 815,
+ 660, 647, 628, 716,
+ 697, 466, 618, 457,
+ 685, 460, 365, 309,
+ 721, 567, 836, 601,
+ 609, 300, 825, 459,
+ 943, 687, 681, 533,
+ 915, 598, 591, 243,
+ 876, 451, 874, 420,
+ 786, 317, 732, 220,
+ 922, 317, 1108, 367,
+ 531, 466, 1028, 649,
+ 1053, 615, 1034, 553,
+ 829, 602, 1021, 799,
+ 927, 803, 878, 763,
+ 799, 496, 1373, 773,
+ 585, 770, 803, 930,
+ 1099, 793, 1222, 862,
+ 1209, 895, 1025, 727,
+ 772, 845, 1172, 1115,
+ 867, 1021, 830, 1013,
+ 841, 910, 506, 703,
+ 1239, 1077, 620, 819,
+ 1196, 1083, 1155, 1081,
+ 1142, 907, 1547, 1121,
+ 1309, 648, 1343, 612,
+ 1484, 988, 1479, 937,
+ 985, 1328, 955, 1341,
+ 429, 910, 841, 1338,
+ 564, 1179, 412, 1156,
+ 1427, 1320, 1434, 1330,
+ 640, 760, 1726, 1410,
+ 190, 555, 1073, 1005,
+ 426, 257, 839, 980,
+ 235, 231, 1520, 1167,
+ 109, 293, 1014, 1569,
+ 305, 142, 1148, 539,
+ -291, -108, 1213, 972,
+ 22, -216, 667, 828,
+ -482, 438, 453, 1431,
+ -581, -422, 789, 387,
+ -358, -454, 174, 780,
+ -36, -372, 390, -134,
+ -629, 160, -306, 751,
+ -1258, -331, 177, 522,
+ -248, 574, -251, 639,
+ -531, 407, -596, 394,
+ -419, 789, -617, 801,
+ -986, 399, -857, 727,
+ -7, 518, -703, 310,
+ -1143, -24, -1002, 287,
+ -960, 363, -1299, 312,
+ -1534, 245, -1557, 305,
+ 28, 153, -859, -175,
+ -33, 332, -1398, -154,
+ 212, 410, -593, -197,
+ -1092, -704, -904, -65,
+ 282, 367, -918, -686,
+ 345, 93, -258, -357,
+ 696, 644, -693, -28,
+ 448, 493, -273, 193,
+ 527, 546, -243, -513,
+ 384, -136, 273, -353,
+ 512, -142, 537, -198,
+ 941, 750, 83, 248,
+ 578, 861, -56, 592,
+ 842, 44, 892, 24,
+ 33, 890, -16, 982,
+ 831, 1398, 1535, 1898,
+ 1716, 1376, 1948, 1465
+ };
+
+ const Word16 dico5_lsf_5[DICO5_5_SIZE * 4] =
+ {
+ -1002, -929, -1096, -1203,
+ -641, -931, -604, -961,
+ -779, -673, -835, -788,
+ -416, -664, -458, -766,
+ -652, -521, -662, -495,
+ -1023, -509, -1023, -428,
+ -444, -552, -368, -449,
+ -479, -211, -1054, -903,
+ -316, -249, -569, -591,
+ -569, -275, -541, -191,
+ -716, -188, -842, -264,
+ -333, -248, -318, -228,
+ -275, 1, -567, -228,
+ -115, -221, -238, -374,
+ -197, -507, -222, -579,
+ -258, -432, -61, -244,
+ -345, 2, -338, 39,
+ -215, -169, -58, 0,
+ -56, -6, -203, -131,
+ 1, -186, -5, -211,
+ 6, -380, 11, -418,
+ -116, 131, -134, 113,
+ 89, -4, 71, -2,
+ -19, -192, 262, 24,
+ 189, 151, -133, -109,
+ 186, -153, 166, -219,
+ 37, 139, 193, 171,
+ 337, 124, 158, -61,
+ 141, 226, -13, 190,
+ 231, 34, 354, 109,
+ 316, 201, 244, 164,
+ 330, -85, 390, -84,
+ 254, 327, 257, 335,
+ 491, 147, 476, 105,
+ 54, 77, 437, 370,
+ 421, 314, 449, 342,
+ 329, 126, 673, 292,
+ 571, 388, 243, 193,
+ 653, 320, 621, 280,
+ 194, 380, 517, 581,
+ 45, 323, 111, 422,
+ 489, 395, 734, 534,
+ 622, 546, 486, 502,
+ 318, 572, 189, 550,
+ 385, 422, -157, 153,
+ -125, 382, -197, 386,
+ -263, 334, 228, 697,
+ -188, 1, 51, 297,
+ -507, 213, -376, 397,
+ -24, 255, -547, 89,
+ -502, -94, 387, 179,
+ -620, 68, -684, 112,
+ -642, -350, -260, 172,
+ -438, -324, 264, 648,
+ -964, -4, -1121, 7,
+ -134, 134, -1133, -306,
+ 143, 96, -420, -497,
+ -1221, -350, -1527, -685,
+ -161, 72, 873, 691,
+ 732, 283, 921, 353,
+ 334, 475, 1095, 821,
+ 864, 524, 843, 497,
+ 714, 711, 788, 750,
+ 1076, 714, 1204, 753
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] q_plsf_5.tab, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: qua_gain_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "qua_gain_tbl.h"
+#include "qua_gain.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+
+ /* The tables contains the following data:
+ *
+ * g_pitch (Q14),
+ * g_fac (Q12), (g_code = g_code0*g_fac),
+ * qua_ener_MR122 (Q10), (log2(g_fac))
+ * qua_ener (Q10) (20*log10(g_fac))
+ *
+ * The log2() and log10() values are calculated on the fixed point value
+ * (g_fac Q12) and not on the original floating point value of g_fac
+ * to make the quantizer/MA predictdor use corresponding values.
+ */
+
+ /* table used in 'high' rates: MR67 MR74 */
+
+ const Word16 table_gain_highrates[VQ_SIZE_HIGHRATES*4] =
+ {
+
+ /*
+ * Note: column 4 (qua_ener) contains the original values from IS641
+ * to ensure bit-exactness; however, they are not exactly the
+ * rounded value of (20*log10(g_fac))
+ *
+ */
+
+ /*g_pit, g_fac, qua_ener_MR122, qua_ener */
+ 577, 662, -2692, -16214,
+ 806, 1836, -1185, -7135,
+ 3109, 1052, -2008, -12086,
+ 4181, 1387, -1600, -9629,
+ 2373, 1425, -1560, -9394,
+ 3248, 1985, -1070, -6442,
+ 1827, 2320, -840, -5056,
+ 941, 3314, -313, -1885,
+ 2351, 2977, -471, -2838,
+ 3616, 2420, -777, -4681,
+ 3451, 3096, -414, -2490,
+ 2955, 4301, 72, 434,
+ 1848, 4500, 139, 836,
+ 3884, 5416, 413, 2484,
+ 1187, 7210, 835, 5030,
+ 3083, 9000, 1163, 7002,
+ 7384, 883, -2267, -13647,
+ 5962, 1506, -1478, -8900,
+ 5155, 2134, -963, -5800,
+ 7944, 2009, -1052, -6335,
+ 6507, 2250, -885, -5327,
+ 7670, 2752, -588, -3537,
+ 5952, 3016, -452, -2724,
+ 4898, 3764, -125, -751,
+ 6989, 3588, -196, -1177,
+ 8174, 3978, -43, -260,
+ 6064, 4404, 107, 645,
+ 7709, 5087, 320, 1928,
+ 5523, 6021, 569, 3426,
+ 7769, 7126, 818, 4926,
+ 6060, 7938, 977, 5885,
+ 5594, 11487, 1523, 9172,
+ 10581, 1356, -1633, -9831,
+ 9049, 1597, -1391, -8380,
+ 9794, 2035, -1033, -6220,
+ 8946, 2415, -780, -4700,
+ 10296, 2584, -681, -4099,
+ 9407, 2734, -597, -3595,
+ 8700, 3218, -356, -2144,
+ 9757, 3395, -277, -1669,
+ 10177, 3892, -75, -454,
+ 9170, 4528, 148, 891,
+ 10152, 5004, 296, 1781,
+ 9114, 5735, 497, 2993,
+ 10500, 6266, 628, 3782,
+ 10110, 7631, 919, 5534,
+ 8844, 8727, 1117, 6728,
+ 8956, 12496, 1648, 9921,
+ 12924, 976, -2119, -12753,
+ 11435, 1755, -1252, -7539,
+ 12138, 2328, -835, -5024,
+ 11388, 2368, -810, -4872,
+ 10700, 3064, -429, -2580,
+ 12332, 2861, -530, -3192,
+ 11722, 3327, -307, -1848,
+ 11270, 3700, -150, -904,
+ 10861, 4413, 110, 663,
+ 12082, 4533, 150, 902,
+ 11283, 5205, 354, 2132,
+ 11960, 6305, 637, 3837,
+ 11167, 7534, 900, 5420,
+ 12128, 8329, 1049, 6312,
+ 10969, 10777, 1429, 8604,
+ 10300, 17376, 2135, 12853,
+ 13899, 1681, -1316, -7921,
+ 12580, 2045, -1026, -6179,
+ 13265, 2439, -766, -4610,
+ 14033, 2989, -465, -2802,
+ 13452, 3098, -413, -2482,
+ 12396, 3658, -167, -1006,
+ 13510, 3780, -119, -713,
+ 12880, 4272, 62, 374,
+ 13533, 4861, 253, 1523,
+ 12667, 5457, 424, 2552,
+ 13854, 6106, 590, 3551,
+ 13031, 6483, 678, 4084,
+ 13557, 7721, 937, 5639,
+ 12957, 9311, 1213, 7304,
+ 13714, 11551, 1532, 9221,
+ 12591, 15206, 1938, 11667,
+ 15113, 1540, -1445, -8700,
+ 15072, 2333, -832, -5007,
+ 14527, 2511, -723, -4352,
+ 14692, 3199, -365, -2197,
+ 15382, 3560, -207, -1247,
+ 14133, 3960, -50, -300,
+ 15102, 4236, 50, 298,
+ 14332, 4824, 242, 1454,
+ 14846, 5451, 422, 2542,
+ 15306, 6083, 584, 3518,
+ 14329, 6888, 768, 4623,
+ 15060, 7689, 930, 5602,
+ 14406, 9426, 1231, 7413,
+ 15387, 9741, 1280, 7706,
+ 14824, 14271, 1844, 11102,
+ 13600, 24939, 2669, 16067,
+ 16396, 1969, -1082, -6517,
+ 16817, 2832, -545, -3283,
+ 15713, 2843, -539, -3248,
+ 16104, 3336, -303, -1825,
+ 16384, 3963, -49, -294,
+ 16940, 4579, 165, 992,
+ 15711, 4599, 171, 1030,
+ 16222, 5448, 421, 2537,
+ 16832, 6382, 655, 3945,
+ 15745, 7141, 821, 4944,
+ 16326, 7469, 888, 5343,
+ 16611, 8624, 1100, 6622,
+ 17028, 10418, 1379, 8303,
+ 15905, 11817, 1565, 9423,
+ 16878, 14690, 1887, 11360,
+ 16515, 20870, 2406, 14483,
+ 18142, 2083, -999, -6013,
+ 19401, 3178, -375, -2257,
+ 17508, 3426, -264, -1589,
+ 20054, 4027, -25, -151,
+ 18069, 4249, 54, 326,
+ 18952, 5066, 314, 1890,
+ 17711, 5402, 409, 2461,
+ 19835, 6192, 610, 3676,
+ 17950, 7014, 795, 4784,
+ 21318, 7877, 966, 5816,
+ 17910, 9289, 1210, 7283,
+ 19144, 9290, 1210, 7284,
+ 20517, 11381, 1510, 9089,
+ 18075, 14485, 1866, 11234,
+ 19999, 17882, 2177, 13108,
+ 18842, 32764, 3072, 18494
+ };
+
+
+ /* table used in 'low' rates: MR475, MR515, MR59 */
+
+ const Word16 table_gain_lowrates[VQ_SIZE_LOWRATES*4] =
+ {
+ /*g_pit, g_fac, qua_ener_MR122, qua_ener */
+ 10813, 28753, 2879, 17333,
+ 20480, 2785, -570, -3431,
+ 18841, 6594, 703, 4235,
+ 6225, 7413, 876, 5276,
+ 17203, 10444, 1383, 8325,
+ 21626, 1269, -1731, -10422,
+ 21135, 4423, 113, 683,
+ 11304, 1556, -1430, -8609,
+ 19005, 12820, 1686, 10148,
+ 17367, 2498, -731, -4398,
+ 17858, 4833, 244, 1472,
+ 9994, 2498, -731, -4398,
+ 17530, 7864, 964, 5802,
+ 14254, 1884, -1147, -6907,
+ 15892, 3153, -387, -2327,
+ 6717, 1802, -1213, -7303,
+ 18186, 20193, 2357, 14189,
+ 18022, 3031, -445, -2678,
+ 16711, 5857, 528, 3181,
+ 8847, 4014, -30, -180,
+ 15892, 8970, 1158, 6972,
+ 18022, 1392, -1594, -9599,
+ 16711, 4096, 0, 0,
+ 8192, 655, -2708, -16305,
+ 15237, 13926, 1808, 10884,
+ 14254, 3112, -406, -2444,
+ 14090, 4669, 193, 1165,
+ 5406, 2703, -614, -3697,
+ 13434, 6553, 694, 4180,
+ 12451, 901, -2237, -13468,
+ 12451, 2662, -637, -3833,
+ 3768, 655, -2708, -16305,
+ 14745, 23511, 2582, 15543,
+ 19169, 2457, -755, -4546,
+ 20152, 5079, 318, 1913,
+ 6881, 4096, 0, 0,
+ 20480, 8560, 1089, 6556,
+ 19660, 737, -2534, -15255,
+ 19005, 4259, 58, 347,
+ 7864, 2088, -995, -5993,
+ 11468, 12288, 1623, 9771,
+ 15892, 1474, -1510, -9090,
+ 15728, 4628, 180, 1086,
+ 9175, 1433, -1552, -9341,
+ 16056, 7004, 793, 4772,
+ 14827, 737, -2534, -15255,
+ 15073, 2252, -884, -5321,
+ 5079, 1228, -1780, -10714,
+ 13271, 17326, 2131, 12827,
+ 16547, 2334, -831, -5002,
+ 15073, 5816, 518, 3118,
+ 3932, 3686, -156, -938,
+ 14254, 8601, 1096, 6598,
+ 16875, 778, -2454, -14774,
+ 15073, 3809, -107, -646,
+ 6062, 614, -2804, -16879,
+ 9338, 9256, 1204, 7251,
+ 13271, 1761, -1247, -7508,
+ 13271, 3522, -223, -1343,
+ 2457, 1966, -1084, -6529,
+ 11468, 5529, 443, 2668,
+ 10485, 737, -2534, -15255,
+ 11632, 3194, -367, -2212,
+ 1474, 778, -2454, -14774
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] qua_gain.tab, UMTS GSM AMR speech codec,
+ R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: r_fft.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "oper_32b.h"
+#include "vad2.h"
+#include "sub.h"
+#include "add.h"
+#include "shr.h"
+#include "shl.h"
+#include "l_mult.h"
+#include "l_mac.h"
+#include "l_msu.h"
+#include "round.h"
+#include "l_negate.h"
+#include "l_deposit_h.h"
+#include "l_shr.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define SIZE 128
+#define SIZE_BY_TWO 64
+#define NUM_STAGE 6
+#define TRUE 1
+#define FALSE 0
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+const Word16 phs_tbl[] =
+{
+
+ 32767, 0, 32729, -1608, 32610, -3212, 32413, -4808,
+ 32138, -6393, 31786, -7962, 31357, -9512, 30853, -11039,
+ 30274, -12540, 29622, -14010, 28899, -15447, 28106, -16846,
+ 27246, -18205, 26320, -19520, 25330, -20788, 24279, -22006,
+ 23170, -23170, 22006, -24279, 20788, -25330, 19520, -26320,
+ 18205, -27246, 16846, -28106, 15447, -28899, 14010, -29622,
+ 12540, -30274, 11039, -30853, 9512, -31357, 7962, -31786,
+ 6393, -32138, 4808, -32413, 3212, -32610, 1608, -32729,
+ 0, -32768, -1608, -32729, -3212, -32610, -4808, -32413,
+ -6393, -32138, -7962, -31786, -9512, -31357, -11039, -30853,
+ -12540, -30274, -14010, -29622, -15447, -28899, -16846, -28106,
+ -18205, -27246, -19520, -26320, -20788, -25330, -22006, -24279,
+ -23170, -23170, -24279, -22006, -25330, -20788, -26320, -19520,
+ -27246, -18205, -28106, -16846, -28899, -15447, -29622, -14010,
+ -30274, -12540, -30853, -11039, -31357, -9512, -31786, -7962,
+ -32138, -6393, -32413, -4808, -32610, -3212, -32729, -1608
+
+};
+
+const Word16 ii_table[] =
+ {SIZE / 2, SIZE / 4, SIZE / 8, SIZE / 16, SIZE / 32, SIZE / 64};
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: c_fft
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ farray_ptr = pointer to complex array that the FFT operates on of type
+ Word16.
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow = 1 if the math functions called by cor_h_x2 result in overflow
+ else zero.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This is an implementation of decimation-in-time FFT algorithm for
+ real sequences. The techniques used here can be found in several
+ books, e.g., i) Proakis and Manolakis, "Digital Signal Processing",
+ 2nd Edition, Chapter 9, and ii) W.H. Press et. al., "Numerical
+ Recipes in C", 2nd Ediiton, Chapter 12.
+
+ Input - There is one input to this function:
+
+ 1) An integer pointer to the input data array
+
+ Output - There is no return value.
+ The input data are replaced with transformed data. If the
+ input is a real time domain sequence, it is replaced with
+ the complex FFT for positive frequencies. The FFT value
+ for DC and the foldover frequency are combined to form the
+ first complex number in the array. The remaining complex
+ numbers correspond to increasing frequencies. If the input
+ is a complex frequency domain sequence arranged as above,
+ it is replaced with the corresponding time domain sequence.
+
+ Notes:
+
+ 1) This function is designed to be a part of a VAD
+ algorithm that requires 128-point FFT of real
+ sequences. This is achieved here through a 64-point
+ complex FFT. Consequently, the FFT size information is
+ not transmitted explicitly. However, some flexibility
+ is provided in the function to change the size of the
+ FFT by specifying the size information through "define"
+ statements.
+
+ 2) The values of the complex sinusoids used in the FFT
+ algorithm are stored in a ROM table.
+
+ 3) In the c_fft function, the FFT values are divided by
+ 2 after each stage of computation thus dividing the
+ final FFT values by 64. This is somewhat different
+ from the usual definition of FFT where the factor 1/N,
+ i.e., 1/64, used for the IFFT and not the FFT. No factor
+ is used in the r_fft function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ r_fft.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+The original etsi reference code uses a global flag Overflow. However, in the
+actual implementation a pointer to a the overflow flag is passed in.
+
+void c_fft(Word16 * farray_ptr)
+{
+ Word16 i, j, k, ii, jj, kk, ji, kj, ii2;
+ Word32 ftmp, ftmp_real, ftmp_imag;
+ Word16 tmp, tmp1, tmp2;
+
+ // Rearrange the input array in bit reversed order
+ for (i = 0, j = 0; i < SIZE - 2; i = i + 2)
+ {
+ if (sub(j, i) > 0)
+ {
+ ftmp = *(farray_ptr + i);
+ *(farray_ptr + i) = *(farray_ptr + j);
+ *(farray_ptr + j) = ftmp;
+
+ ftmp = *(farray_ptr + i + 1);
+ *(farray_ptr + i + 1) = *(farray_ptr + j + 1);
+ *(farray_ptr + j + 1) = ftmp;
+ }
+
+ k = SIZE_BY_TWO;
+ while (sub(j, k) >= 0)
+ {
+ j = sub(j, k);
+ k = shr(k, 1);
+ }
+ j = add(j, k);
+ }
+
+ // The FFT part
+ for (i = 0; i < NUM_STAGE; i++)
+ { // i is stage counter
+ jj = shl(2, i); // FFT size
+ kk = shl(jj, 1); // 2 * FFT size
+ ii = ii_table[i]; // 2 * number of FFT's
+ ii2 = shl(ii, 1);
+ ji = 0; // ji is phase table index
+
+ for (j = 0; j < jj; j = j + 2)
+ { // j is sample counter
+
+ for (k = j; k < SIZE; k = k + kk)
+ { // k is butterfly top
+ kj = add(k, jj); // kj is butterfly bottom
+
+ // Butterfly computations
+ ftmp_real = L_mult(*(farray_ptr + kj), phs_tbl[ji]);
+ ftmp_real = L_msu(ftmp_real, *(farray_ptr + kj + 1), phs_tbl[ji + 1]);
+
+ ftmp_imag = L_mult(*(farray_ptr + kj + 1), phs_tbl[ji]);
+ ftmp_imag = L_mac(ftmp_imag, *(farray_ptr + kj), phs_tbl[ji + 1]);
+
+ tmp1 = pv_round(ftmp_real);
+ tmp2 = pv_round(ftmp_imag);
+
+ tmp = sub(*(farray_ptr + k), tmp1);
+ *(farray_ptr + kj) = shr(tmp, 1);
+
+ tmp = sub(*(farray_ptr + k + 1), tmp2);
+ *(farray_ptr + kj + 1) = shr(tmp, 1);
+
+ tmp = add(*(farray_ptr + k), tmp1);
+ *(farray_ptr + k) = shr(tmp, 1);
+
+ tmp = add(*(farray_ptr + k + 1), tmp2);
+ *(farray_ptr + k + 1) = shr(tmp, 1);
+ }
+
+ ji = add(ji, ii2);
+ }
+ }
+} // end of c_fft ()
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/* FFT function for complex sequences */
+/*
+ * The decimation-in-time complex FFT is implemented below.
+ * The input complex numbers are presented as real part followed by
+ * imaginary part for each sample. The counters are therefore
+ * incremented by two to access the complex valued samples.
+ */
+
+void c_fft(Word16 * farray_ptr, Flag *pOverflow)
+{
+
+ Word16 i;
+ Word16 j;
+ Word16 k;
+ Word16 ii;
+ Word16 jj;
+ Word16 kk;
+ Word16 ji;
+ Word16 kj;
+ Word16 ii2;
+ Word32 ftmp;
+ Word32 ftmp_real;
+ Word32 ftmp_imag;
+ Word16 tmp;
+ Word16 tmp1;
+ Word16 tmp2;
+
+ /* Rearrange the input array in bit reversed order */
+ for (i = 0, j = 0; i < SIZE - 2; i = i + 2)
+ {
+ if (j > i)
+ {
+ ftmp = *(farray_ptr + i);
+ *(farray_ptr + i) = *(farray_ptr + j);
+ *(farray_ptr + j) = (Word16)ftmp;
+
+ ftmp = *(farray_ptr + i + 1);
+ *(farray_ptr + i + 1) = *(farray_ptr + j + 1);
+ *(farray_ptr + j + 1) = (Word16)ftmp;
+ }
+
+ k = SIZE_BY_TWO;
+ while (j >= k)
+ {
+ j = sub(j, k, pOverflow);
+ k = shr(k, 1, pOverflow);
+ }
+ j = add(j, k, pOverflow);
+ }
+
+ /* The FFT part */
+ for (i = 0; i < NUM_STAGE; i++)
+ { /* i is stage counter */
+ jj = shl(2, i, pOverflow); /* FFT size */
+ kk = shl(jj, 1, pOverflow); /* 2 * FFT size */
+ ii = ii_table[i]; /* 2 * number of FFT's */
+ ii2 = shl(ii, 1, pOverflow);
+ ji = 0; /* ji is phase table index */
+
+ for (j = 0; j < jj; j = j + 2)
+ { /* j is sample counter */
+
+ for (k = j; k < SIZE; k = k + kk)
+ { /* k is butterfly top */
+ kj = add(k, jj, pOverflow); /* kj is butterfly bottom */
+
+ /* Butterfly computations */
+ ftmp_real = L_mult(*(farray_ptr + kj), phs_tbl[ji], pOverflow);
+ ftmp_real = L_msu(ftmp_real, *(farray_ptr + kj + 1),
+ phs_tbl[ji + 1], pOverflow);
+
+ ftmp_imag = L_mult(*(farray_ptr + kj + 1),
+ phs_tbl[ji], pOverflow);
+ ftmp_imag = L_mac(ftmp_imag, *(farray_ptr + kj),
+ phs_tbl[ji + 1], pOverflow);
+
+ tmp1 = pv_round(ftmp_real, pOverflow);
+ tmp2 = pv_round(ftmp_imag, pOverflow);
+
+ tmp = sub(*(farray_ptr + k), tmp1, pOverflow);
+ *(farray_ptr + kj) = shr(tmp, 1, pOverflow);
+
+ tmp = sub(*(farray_ptr + k + 1), tmp2, pOverflow);
+ *(farray_ptr + kj + 1) = shr(tmp, 1, pOverflow);
+
+ tmp = add(*(farray_ptr + k), tmp1, pOverflow);
+ *(farray_ptr + k) = shr(tmp, 1, pOverflow);
+
+ tmp = add(*(farray_ptr + k + 1), tmp2, pOverflow);
+ *(farray_ptr + k + 1) = shr(tmp, 1, pOverflow);
+ }
+
+ ji = add(ji, ii2, pOverflow);
+ }
+ }
+} /* end of c_fft () */
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: r_fft
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ farray_ptr = pointer to complex array that the FFT operates on of type
+ Word16.
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow = 1 if the math functions called by cor_h_x2 result in overflow
+ else zero.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This is an implementation of decimation-in-time FFT algorithm for
+ real sequences. The techniques used here can be found in several
+ books, e.g., i) Proakis and Manolakis, "Digital Signal Processing",
+ 2nd Edition, Chapter 9, and ii) W.H. Press et. al., "Numerical
+ Recipes in C", 2nd Ediiton, Chapter 12.
+
+ Input - There is one input to this function:
+
+ 1) An integer pointer to the input data array
+
+ Output - There is no return value.
+ The input data are replaced with transformed data. If the
+ input is a real time domain sequence, it is replaced with
+ the complex FFT for positive frequencies. The FFT value
+ for DC and the foldover frequency are combined to form the
+ first complex number in the array. The remaining complex
+ numbers correspond to increasing frequencies. If the input
+ is a complex frequency domain sequence arranged as above,
+ it is replaced with the corresponding time domain sequence.
+
+ Notes:
+
+ 1) This function is designed to be a part of a VAD
+ algorithm that requires 128-point FFT of real
+ sequences. This is achieved here through a 64-point
+ complex FFT. Consequently, the FFT size information is
+ not transmitted explicitly. However, some flexibility
+ is provided in the function to change the size of the
+ FFT by specifying the size information through "define"
+ statements.
+
+ 2) The values of the complex sinusoids used in the FFT
+ algorithm are stored in a ROM table.
+
+ 3) In the c_fft function, the FFT values are divided by
+ 2 after each stage of computation thus dividing the
+ final FFT values by 64. This is somewhat different
+ from the usual definition of FFT where the factor 1/N,
+ i.e., 1/64, used for the IFFT and not the FFT. No factor
+ is used in the r_fft function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ r_fft.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+The original etsi reference code uses a global flag Overflow. However, in the
+actual implementation a pointer to a the overflow flag is passed in.
+
+void r_fft(Word16 * farray_ptr)
+{
+
+ Word16 ftmp1_real, ftmp1_imag, ftmp2_real, ftmp2_imag;
+ Word32 Lftmp1_real, Lftmp1_imag;
+ Word16 i, j;
+ Word32 Ltmp1;
+
+ // Perform the complex FFT
+ c_fft(farray_ptr);
+
+ // First, handle the DC and foldover frequencies
+ ftmp1_real = *farray_ptr;
+ ftmp2_real = *(farray_ptr + 1);
+ *farray_ptr = add(ftmp1_real, ftmp2_real);
+ *(farray_ptr + 1) = sub(ftmp1_real, ftmp2_real);
+
+ // Now, handle the remaining positive frequencies
+ for (i = 2, j = SIZE - i; i <= SIZE_BY_TWO; i = i + 2, j = SIZE - i)
+ {
+ ftmp1_real = add(*(farray_ptr + i), *(farray_ptr + j));
+ ftmp1_imag = sub(*(farray_ptr + i + 1), *(farray_ptr + j + 1));
+ ftmp2_real = add(*(farray_ptr + i + 1), *(farray_ptr + j + 1));
+ ftmp2_imag = sub(*(farray_ptr + j), *(farray_ptr + i));
+
+ Lftmp1_real = L_deposit_h(ftmp1_real);
+ Lftmp1_imag = L_deposit_h(ftmp1_imag);
+
+ Ltmp1 = L_mac(Lftmp1_real, ftmp2_real, phs_tbl[i]);
+ Ltmp1 = L_msu(Ltmp1, ftmp2_imag, phs_tbl[i + 1]);
+ *(farray_ptr + i) = pv_round(L_shr(Ltmp1, 1));
+
+ Ltmp1 = L_mac(Lftmp1_imag, ftmp2_imag, phs_tbl[i]);
+ Ltmp1 = L_mac(Ltmp1, ftmp2_real, phs_tbl[i + 1]);
+ *(farray_ptr + i + 1) = pv_round(L_shr(Ltmp1, 1));
+
+ Ltmp1 = L_mac(Lftmp1_real, ftmp2_real, phs_tbl[j]);
+ Ltmp1 = L_mac(Ltmp1, ftmp2_imag, phs_tbl[j + 1]);
+ *(farray_ptr + j) = pv_round(L_shr(Ltmp1, 1));
+
+ Ltmp1 = L_negate(Lftmp1_imag);
+ Ltmp1 = L_msu(Ltmp1, ftmp2_imag, phs_tbl[j]);
+ Ltmp1 = L_mac(Ltmp1, ftmp2_real, phs_tbl[j + 1]);
+ *(farray_ptr + j + 1) = pv_round(L_shr(Ltmp1, 1));
+
+ }
+} // end r_fft ()
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/* FFT function for complex sequences */
+/*
+ * The decimation-in-time complex FFT is implemented below.
+ * The input complex numbers are presented as real part followed by
+ * imaginary part for each sample. The counters are therefore
+ * incremented by two to access the complex valued samples.
+ */
+void r_fft(Word16 * farray_ptr, Flag *pOverflow)
+{
+
+ Word16 ftmp1_real;
+ Word16 ftmp1_imag;
+ Word16 ftmp2_real;
+ Word16 ftmp2_imag;
+ Word32 Lftmp1_real;
+ Word32 Lftmp1_imag;
+ Word16 i;
+ Word16 j;
+ Word32 Ltmp1;
+
+ /* Perform the complex FFT */
+ c_fft(farray_ptr, pOverflow);
+
+ /* First, handle the DC and foldover frequencies */
+ ftmp1_real = *farray_ptr;
+ ftmp2_real = *(farray_ptr + 1);
+ *farray_ptr = add(ftmp1_real, ftmp2_real, pOverflow);
+ *(farray_ptr + 1) = sub(ftmp1_real, ftmp2_real, pOverflow);
+
+ /* Now, handle the remaining positive frequencies */
+ for (i = 2, j = SIZE - i; i <= SIZE_BY_TWO; i = i + 2, j = SIZE - i)
+ {
+ ftmp1_real = add(*(farray_ptr + i), *(farray_ptr + j), pOverflow);
+ ftmp1_imag = sub(*(farray_ptr + i + 1),
+ *(farray_ptr + j + 1), pOverflow);
+ ftmp2_real = add(*(farray_ptr + i + 1),
+ *(farray_ptr + j + 1), pOverflow);
+ ftmp2_imag = sub(*(farray_ptr + j),
+ *(farray_ptr + i), pOverflow);
+
+ Lftmp1_real = L_deposit_h(ftmp1_real);
+ Lftmp1_imag = L_deposit_h(ftmp1_imag);
+
+ Ltmp1 = L_mac(Lftmp1_real, ftmp2_real, phs_tbl[i], pOverflow);
+ Ltmp1 = L_msu(Ltmp1, ftmp2_imag, phs_tbl[i + 1], pOverflow);
+ *(farray_ptr + i) = pv_round(L_shr(Ltmp1, 1, pOverflow), pOverflow);
+
+ Ltmp1 = L_mac(Lftmp1_imag, ftmp2_imag, phs_tbl[i], pOverflow);
+ Ltmp1 = L_mac(Ltmp1, ftmp2_real, phs_tbl[i + 1], pOverflow);
+ *(farray_ptr + i + 1) = pv_round(L_shr(Ltmp1, 1, pOverflow), pOverflow);
+
+ Ltmp1 = L_mac(Lftmp1_real, ftmp2_real, phs_tbl[j], pOverflow);
+ Ltmp1 = L_mac(Ltmp1, ftmp2_imag, phs_tbl[j + 1], pOverflow);
+ *(farray_ptr + j) = pv_round(L_shr(Ltmp1, 1, pOverflow), pOverflow);
+
+ Ltmp1 = L_negate(Lftmp1_imag);
+ Ltmp1 = L_msu(Ltmp1, ftmp2_imag, phs_tbl[j], pOverflow);
+ Ltmp1 = L_mac(Ltmp1, ftmp2_real, phs_tbl[j + 1], pOverflow);
+ *(farray_ptr + j + 1) = pv_round(L_shr(Ltmp1, 1, pOverflow), pOverflow);
+
+ }
+} /* end r_fft () */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: reorder.cpp
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "reorder.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Reorder_lsf
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsf = vector of LSFs (range: 0<=val<=0.5)(Word16)
+ min_dist = minimum required distance (Word16)
+ n = LPC order (Word16)
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the add operation called by Reorder_lsf() results in
+ overflow
+ lsf -> reordered vector of LSFs (Word16)
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function makes sure that the LSFs are properly ordered keeps a certain
+ minimum distance between adjacent LSFs.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] reorder.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Reorder_lsf (
+ Word16 *lsf, // (i/o) : vector of LSFs (range: 0<=val<=0.5)
+ Word16 min_dist, // (i) : minimum required distance
+ Word16 n // (i) : LPC order
+)
+{
+ Word16 i;
+ Word16 lsf_min;
+
+// The reference ETSI code uses a global flag for Overflow. In the actual
+// implementation a pointer to Overflow flag is passed into the function
+// for use by the math functions add() and sub()
+
+ lsf_min = min_dist;
+ for (i = 0; i < n; i++)
+ {
+ if (sub (lsf[i], lsf_min) < 0)
+ {
+ lsf[i] = lsf_min;
+ }
+ lsf_min = add (lsf[i], min_dist);
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+OSCL_EXPORT_REF void Reorder_lsf(
+ Word16 *lsf, /* (i/o) : vector of LSFs (range: 0<=val<=0.5) */
+ Word16 min_dist, /* (i) : minimum required distance */
+ Word16 n, /* (i) : LPC order */
+ Flag *pOverflow /* (i/o) : Overflow flag */
+)
+{
+ Word16 i;
+ Word16 lsf_min;
+ Word16 *p_lsf = &lsf[0];
+ OSCL_UNUSED_ARG(pOverflow);
+
+ lsf_min = min_dist;
+ for (i = 0; i < n; i++)
+ {
+ if (*(p_lsf) < lsf_min)
+ {
+ *(p_lsf++) = lsf_min;
+ lsf_min += min_dist;
+ }
+ else
+ {
+ lsf_min = *(p_lsf++) + min_dist;
+ }
+ }
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: residu.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "residu.h"
+#include "typedef.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Residu
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ coef_ptr = pointer to buffer containing the prediction coefficients
+ input_ptr = pointer to buffer containing the speech signal
+ input_len = filter order
+ residual_ptr = pointer to buffer of residual signal
+
+ Outputs:
+ residual_ptr buffer contains the newly calculated the residual signal
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes the LP residual by filtering the input speech through
+ the LP inverse filter A(z).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ residu.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Note: Input argument names were changed to be more descriptive. Shown below
+ are the original names. Shown below are the name changes:
+ a[] <--> coef_ptr[]
+ x[] <--> input_ptr[]
+ y[] <--> residual_ptr[]
+ lg <--> input_len
+
+
+void Residu (
+ Word16 a[], // (i) : prediction coefficients
+ Word16 x[], // (i) : speech signal
+ Word16 y[], // (o) : residual signal
+ Word16 lg // (i) : size of filtering
+)
+{
+ Word16 i, j;
+ Word32 s;
+
+ for (i = 0; i < lg; i++)
+ {
+ s = L_mult (x[i], a[0]);
+ for (j = 1; j <= M; j++)
+ {
+ s = L_mac (s, a[j], x[i - j]);
+ }
+ s = L_shl (s, 3);
+ y[i] = pv_round (s);
+ }
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Residu(
+ Word16 coef_ptr[], /* (i) : prediction coefficients*/
+ Word16 input_ptr[], /* (i) : speech signal */
+ Word16 residual_ptr[], /* (o) : residual signal */
+ Word16 input_len /* (i) : size of filtering */
+)
+{
+
+
+ register Word16 i, j;
+ Word32 s1;
+ Word32 s2;
+ Word32 s3;
+ Word32 s4;
+ Word16 *p_input1;
+ Word16 *p_input2;
+ Word16 *p_input3;
+ Word16 *p_input4;
+ Word16 *p_coef;
+ Word16 *p_residual_ptr = &residual_ptr[input_len-1];
+ Word16 *p_input_ptr = &input_ptr[input_len-1-M];
+
+ for (i = input_len >> 2; i != 0; i--)
+ {
+ s1 = 0x0000800L;
+ s2 = 0x0000800L;
+ s3 = 0x0000800L;
+ s4 = 0x0000800L;
+ p_coef = &coef_ptr[M];
+ p_input1 = p_input_ptr--;
+ p_input2 = p_input_ptr--;
+ p_input3 = p_input_ptr--;
+ p_input4 = p_input_ptr--;
+
+ for (j = M >> 1; j != 0; j--)
+ {
+ s1 += ((Word32) * (p_coef) * *(p_input1++));
+ s2 += ((Word32) * (p_coef) * *(p_input2++));
+ s3 += ((Word32) * (p_coef) * *(p_input3++));
+ s4 += ((Word32) * (p_coef--) * *(p_input4++));
+ s1 += ((Word32) * (p_coef) * *(p_input1++));
+ s2 += ((Word32) * (p_coef) * *(p_input2++));
+ s3 += ((Word32) * (p_coef) * *(p_input3++));
+ s4 += ((Word32) * (p_coef--) * *(p_input4++));
+ }
+
+ s1 += (((Word32) * (p_coef)) * *(p_input1));
+ s2 += (((Word32) * (p_coef)) * *(p_input2));
+ s3 += (((Word32) * (p_coef)) * *(p_input3));
+ s4 += (((Word32) * (p_coef)) * *(p_input4));
+
+ *(p_residual_ptr--) = (Word16)(s1 >> 12);
+ *(p_residual_ptr--) = (Word16)(s2 >> 12);
+ *(p_residual_ptr--) = (Word16)(s3 >> 12);
+ *(p_residual_ptr--) = (Word16)(s4 >> 12);
+
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: round.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Rounding function with saturation.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: pv_round
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ None
+
+ Returns:
+ result = MS 16 bits of rounded input L_var1.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function rounds the lower 16 bits of the 32 bit input number into the
+ MS 16 bits with saturation. Shift the resulting bits right by 16 and return
+ the 16 bit number:
+ pv_round(L_var1) = extract_h(L_add(L_var1,32768))
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] round() function in basic_op2.c, UMTS GSM AMR speech codec, R99 -
+ Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 pv_round (Word32 L_var1)
+{
+ Word16 var_out;
+ Word32 L_rounded;
+
+* The reference ETSI code uses a global flag for Overflow in the L_add() function.
+* In the actual implementation a pointer to Overflow flag is passed in as a
+* parameter to the function.
+
+ L_rounded = L_add (L_var1, (Word32) 0x00008000L);
+#if (WMOPS)
+ multiCounter[currCounter].L_add--;
+#endif
+ var_out = extract_h (L_rounded);
+#if (WMOPS)
+ multiCounter[currCounter].extract_h--;
+ multiCounter[currCounter].round++;
+#endif
+ return (var_out);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+OSCL_EXPORT_REF Word16 pv_round(register Word32 L_var1, Flag *pOverflow)
+{
+ Word16 result;
+
+ L_var1 = L_add(L_var1, (Word32) 0x00008000L, pOverflow);
+ result = (Word16)(L_var1 >> 16);
+
+ return (result);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : set_zero.h
+*
+********************************************************************************
+*/
+/*
+********************************************************************************
+* MODULE INCLUDE FILE AND VERSION ID
+********************************************************************************
+*/
+#include "set_zero.h"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+#include "basic_op.h"
+
+/*
+********************************************************************************
+* PUBLIC PROGRAM CODE
+********************************************************************************
+*/
+void Set_zero(
+ Word16 x[], /* (o) : vector to clear */
+ Word16 L /* (i) : length of vector */
+)
+{
+ Word16 i;
+
+ for (i = 0; i < L; i++)
+ {
+ x[i] = 0;
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: shr.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+ Shift right function with overflow control
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: shr
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the shift operation resulted in overflow
+
+ Returns:
+ product = Shifted result limited to 16 bits (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function arithmetically shifts the 16 bit input var1 right var2 positions
+ with sign extension. If var2 is negative, arithmetically shift var1 left by
+ -var2 with sign extension. Saturate the result in case of underflows or
+ overflows.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+ None
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] shr() function in basic_op2.c, UMTS GSM AMR speech codec, R99 -
+ Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 shr_std (Word16 var1, Word16 var2)
+{
+ Word16 var_out;
+
+ if (var2 < 0)
+ {
+ if (var2 < -16)
+ var2 = -16;
+ var_out = shl_std (var1, -var2);
+#if (WMOPS)
+ mult_stdiCounter[currCounter].shl_std--;
+#endif
+ }
+ else
+ {
+ if (var2 >= 15)
+ {
+ var_out = (var1 < 0) ? -1 : 0;
+ }
+ else
+ {
+ if (var1 < 0)
+ {
+ var_out = ~((~var1) >> var2);
+ }
+ else
+ {
+ var_out = var1 >> var2;
+ }
+ }
+ }
+
+#if (WMOPS)
+ mult_stdiCounter[currCounter].shr_std++;
+#endif
+ return (var_out);
+}
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+OSCL_EXPORT_REF Word16 shr(register Word16 var1, register Word16 var2, Flag *pOverflow)
+{
+ register Word16 result;
+
+ if (var2 != 0)
+ {
+ if (var2 > 0)
+ {
+ if (var2 > 15)
+ {
+ var2 = 15;
+ }
+
+ result = var1 >> var2;
+
+ }
+ else
+ {
+ var2 = -var2; /* Shift right negative is equivalent */
+
+ if (var2 > 15)
+ {
+ var2 = 15;
+ }
+
+ result = (var1 << var2);
+ if ((result >> var2) != var1)
+ {
+ *pOverflow = 1;
+ result = ((var1 > 0) ? MAX_16 : MIN_16);
+ }
+ }
+
+ }
+ else
+ {
+ result = var1;
+ }
+
+ return (result);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: shr_r.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ var_out = shifted input w/ rounding (Word16)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function arithmetically shifts the 16 bit input var1 right var2 positions
+ with rounding. If var2 is negative, arithmetically shift var1 left by
+ -var2 with rounding. Saturate the result in case of underflows or
+ overflows.
+
+ - If var2 is greater than zero :
+ if (sub(shl(shr(var1,var2),1),shr(var1,sub(var2,1))))
+ is equal to zero
+ then
+ shr_r(var1,var2) = shr(var1,var2)
+ else
+ shr_r(var1,var2) = add(shr(var1,var2),1)
+ - If var2 is less than or equal to zero :
+ shr_r(var1,var2) = shr(var1,var2).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 shr_r (Word16 var1, Word16 var2)
+{
+ Word16 var_out;
+
+ if (var2 > 15)
+ {
+ var_out = 0;
+ }
+ else
+ {
+ var_out = shr (var1, var2);
+#if (WMOPS)
+ multiCounter[currCounter].shr--;
+#endif
+
+ if (var2 > 0)
+ {
+ if ((var1 & ((Word16) 1 << (var2 - 1))) != 0)
+ {
+ var_out++;
+ }
+ }
+ }
+#if (WMOPS)
+ multiCounter[currCounter].shr_r++;
+#endif
+ return (var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+OSCL_EXPORT_REF Word16 shr_r(register Word16 var1, register Word16 var2, Flag *pOverflow)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+ Word16 var_out;
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+ if (var2 > 15)
+ {
+ var_out = 0;
+ }
+ else
+ {
+ var_out = shr(var1, var2, pOverflow);
+ if (var2 > 0)
+ {
+ if ((var1 & ((Word16) 1 << (var2 - 1))) != 0)
+ {
+ var_out++;
+ }
+ }
+ }
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+ return (var_out);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: sqrt_l.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "sqrt_l.h"
+#include "typedef.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: sqrt_l_exp
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_x = input value (Word32)
+ pExp = pointer to right shift to be applied to result
+ pOverflow = pointer to overflow flag
+
+ Outputs:
+ pOverflow -> if the Inv_sqrt operation resulted in an overflow.
+
+ Returns:
+ L_y = squareroot of L_x (Word32)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes sqrt(L_x), where L_x is positive.
+ If L_var is negative or zero, the result is 0
+
+ The function sqrt(L_x) is approximated by a table and linear
+ interpolation. The square root is computed using the
+ following steps:
+ 1- Normalization of L_x.
+ 2- If exponent is even then shift right once.
+ 3- exponent = exponent/2
+ 4- i = bit25-b31 of L_x; 16<=i<=63 because of normalization.
+ 5- a = bit10-b24
+ 6- i -=16
+ 7- L_y = table[i]<<16 - (table[i] - table[i+1]) * a * 2
+ 8- return L_y and exponent so caller can do denormalization
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sqrt_l.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word32 sqrt_l_exp ( // o : output value
+ Word32 L_x, // i : input value
+ Word16 *exp // o : right shift to be applied to result
+)
+{
+
+// y = sqrt(x)
+// x = f * 2^-e, 0.5 <= f < 1 (normalization)
+// y = sqrt(f) * 2^(-e/2)
+//
+// a) e = 2k --> y = sqrt(f) * 2^-k (k = e div 2,
+// 0.707 <= sqrt(f) < 1)
+// b) e = 2k+1 --> y = sqrt(f/2) * 2^-k (k = e div 2,
+ 0.5 <= sqrt(f/2) < 0.707)
+
+
+ Word16 e, i, a, tmp;
+ Word32 L_y;
+
+ if (L_x <= (Word32) 0)
+ {
+ *exp = 0;
+ return (Word32) 0;
+ }
+
+* The reference ETSI code uses a global Overflow flag. In the actual
+* implementation a pointer to the overflow flag is passed into the function.
+* This pointer is in turn passed into the basic math functions such as add(),
+* L_shl(), L_shr(), sub() called by this module.
+
+ e = norm_l (L_x) & 0xFFFE; // get next lower EVEN norm. exp
+ L_x = L_shl (L_x, e); // L_x is normalized to [0.25..1)
+ *exp = e; // return 2*exponent (or Q1)
+
+ L_x = L_shr (L_x, 9);
+ i = extract_h (L_x); // Extract b25-b31, 16 <= i <= 63
+ because of normalization
+ L_x = L_shr (L_x, 1);
+ a = extract_l (L_x); // Extract b10-b24
+ a = a & (Word16) 0x7fff;
+
+ i = sub (i, 16); // 0 <= i <= 47
+
+ L_y = L_deposit_h (table[i]); // table[i] << 16
+ tmp = sub (table[i], table[i + 1]); // table[i] - table[i+1])
+ L_y = L_msu (L_y, tmp, a); // L_y -= tmp*a*2
+
+ return (L_y);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF Word32 sqrt_l_exp( /* o : output value, Q31 */
+ Word32 L_x, /* i : input value, Q31 */
+ Word16 *pExp, /* o : right shift to be applied to result, Q1 */
+ Flag *pOverflow /* i : pointer to overflow flag */
+)
+
+{
+ Word16 e;
+ Word16 i;
+ Word16 a;
+ Word16 tmp;
+ Word32 L_y;
+
+ /*
+ y = sqrt(x)
+ x = f * 2^-e, 0.5 <= f < 1 (normalization)
+ y = sqrt(f) * 2^(-e/2)
+ a) e = 2k --> y = sqrt(f) * 2^-k (k = e div 2,
+ 0.707 <= sqrt(f) < 1)
+ b) e = 2k+1 --> y = sqrt(f/2) * 2^-k (k = e div 2,
+ 0.5 <= sqrt(f/2) < 0.707)
+ */
+
+ if (L_x <= (Word32) 0)
+ {
+ *pExp = 0;
+ return (Word32) 0;
+ }
+
+ e = norm_l(L_x) & 0xFFFE; /* get next lower EVEN norm. exp */
+ L_x = L_shl(L_x, e, pOverflow); /* L_x is normalized to [0.25..1) */
+ *pExp = e; /* return 2*exponent (or Q1) */
+
+ L_x >>= 10;
+ i = (Word16)(L_x >> 15) & 63; /* Extract b25-b31, 16<= i <=63 */
+ /* because of normalization */
+
+ a = (Word16)(L_x); /* Extract b10-b24 */
+ a &= (Word16) 0x7fff;
+
+ if (i > 15)
+ {
+ i -= 16; /* 0 <= i <= 47 */
+ }
+
+ L_y = ((Word32) sqrt_l_tbl[i] << 16); /* sqrt_l_tbl[i] << 16 */
+
+ /* sqrt_l_tbl[i] - sqrt_l_tbl[i+1]) */
+ tmp = sqrt_l_tbl[i] - sqrt_l_tbl[i + 1];
+
+ L_y = L_msu(L_y, tmp, a, pOverflow); /* L_y -= tmp*a*2 */
+
+ /* L_y = L_shr (L_y, *exp); */ /* denormalization done by caller */
+
+ return (L_y);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: sqrt_l_tbl.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the declaration for sqrt_l_table[] used by the sqrt_l_exp
+ function.
+
+ sqrt_l_tbl[i] = sqrt((i+16)*2^-6) * 2^15, i.e. sqrt(x) scaled Q15
+
+ ------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "sqrt_l.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+ const Word16 sqrt_l_tbl[50] =
+ {
+ 16384, 16888, 17378, 17854, 18318, 18770, 19212, 19644, 20066, 20480,
+ 20886, 21283, 21674, 22058, 22435, 22806, 23170, 23530, 23884, 24232,
+ 24576, 24915, 25249, 25580, 25905, 26227, 26545, 26859, 27170, 27477,
+ 27780, 28081, 28378, 28672, 28963, 29251, 29537, 29819, 30099, 30377,
+ 30652, 30924, 31194, 31462, 31727, 31991, 32252, 32511, 32767, 32767
+ };
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] inv_sqrt.tab file, UMTS GSM AMR speech codec, R99 - Version 3.2.0,
+ March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: sub.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Subtraction function with overflow control
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: sub
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ var1 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2 = 16 bit short signed integer (Word16) whose value falls in
+ the range : 0xffff 8000 <= var2 <= 0x0000 7fff.
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the subtract operation resulted in overflow
+
+ Returns:
+ diff = 16-bit limited difference between var1 and var2 (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the subtraction (var1-var2) with overflow control and
+ saturation; the 16 bit result is set at +32767 when overflow occurs or at
+ -32768 when underflow occurs.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] sub() function in basicop2.c, UMTS GSM AMR speech codec, R99 -
+ Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+
+ PSEUDO-CODE
+
+ Word16 sub (Word16 var1, Word16 var2)
+ {
+ Word16 var_out;
+ Word32 diff;
+
+ diff = (Word32) var1 - var2;
+
+* The reference ETSI code uses a global flag for Overflow inside the function
+* saturate(). In the actual implementation a pointer to Overflow flag is passed
+* in as a parameter to the function
+
+ var_out = saturate (diff);
+
+ #if (WMOPS)
+ multiCounter[currCounter].sub++;
+ #endif
+
+ return (var_out);
+ }
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+OSCL_EXPORT_REF Word16 sub(Word16 var1, Word16 var2, Flag *pOverflow)
+{
+
+ Word32 diff;
+
+ diff = (Word32) var1 - var2;
+
+ /* Saturate result (if necessary). */
+ /* Replaced function call with in-line code */
+ /* to conserve MIPS, i.e., var_out = saturate (diff) */
+
+
+ if ((UWord32)(diff - 0xFFFF8000L) > 0x000FFFF)
+ {
+ if (diff > (Word32) 0x0007FFFL)
+ {
+ diff = MAX_16;
+ }
+ else
+ {
+ diff = MIN_16;
+ }
+
+ *pOverflow = 1;
+ }
+
+
+ return ((Word16) diff);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: syn_filt.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "syn_filt.h"
+#include "cnst.h"
+#include "basic_op.h"
+#include "oscl_mem.h"
+
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Syn_filt
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ a = buffer containing the prediction coefficients (Word16) max 2^12
+ x = input signal buffer (Word16) max 2^15
+ y = output signal buffer (Word16)
+ lg = size of filtering (Word16)
+ mem = memory buffer associated with this filtering (Word16)
+ update = flag to indicate memory update; 0=no update, 1=update memory
+ (Word16)
+
+ Outputs:
+ mem buffer is changed to be the last M data points of the output signal
+ if update was set to 1
+ y buffer contains the newly calculated filter output
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Perform synthesis filtering through 1/A(z)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ syn_filt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Syn_filt (
+ Word16 a[], // (i) : a[M+1] prediction coefficients (M=10)
+ Word16 x[], // (i) : input signal
+ Word16 y[], // (o) : output signal
+ Word16 lg, // (i) : size of filtering
+ Word16 mem[], // (i/o) : memory associated with this filtering.
+ Word16 update // (i) : 0=no update, 1=update of memory.
+)
+{
+ Word16 i, j;
+ Word32 s;
+ Word16 tmp[80]; // This is usually done by memory allocation (lg+M)
+ Word16 *yy;
+
+ // Copy mem[] to yy[]
+
+ yy = tmp;
+
+ for (i = 0; i < M; i++)
+ {
+ *yy++ = mem[i];
+ }
+
+ // Do the filtering.
+
+ for (i = 0; i < lg; i++)
+ {
+ s = L_mult (x[i], a[0]);
+ for (j = 1; j <= M; j++)
+ {
+ s = L_msu (s, a[j], yy[-j]);
+ }
+ s = L_shl (s, 3);
+ *yy++ = pv_round (s);
+ }
+
+ for (i = 0; i < lg; i++)
+ {
+ y[i] = tmp[i + M];
+ }
+
+ // Update of memory if update==1
+
+ if (update != 0)
+ {
+ for (i = 0; i < M; i++)
+ {
+ mem[i] = y[lg - M + i];
+ }
+ }
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Syn_filt(
+ Word16 a[], /* (i) : a[M+1] prediction coefficients (M=10) */
+ Word16 x[], /* (i) : input signal */
+ Word16 y[], /* (o) : output signal */
+ Word16 lg, /* (i) : size of filtering (40) */
+ Word16 mem[], /* (i/o) : memory associated with this filtering. */
+ Word16 update /* (i) : 0=no update, 1=update of memory. */
+)
+{
+ Word16 i, j;
+ Word32 s1;
+ Word32 s2;
+ Word16 tmp[2*M]; /* This is usually done by memory allocation (lg+M) */
+ Word16 *yy;
+
+ Word16 *p_a;
+ Word16 *p_yy1;
+ Word16 *p_y;
+ Word16 *p_x;
+ Word16 temp;
+ /* Copy mem[] to yy[] */
+
+ yy = tmp;
+
+ oscl_memcpy(yy, mem, M*sizeof(Word16));
+
+ yy = yy + M;
+
+ /* Do the filtering. */
+
+ p_y = y;
+ p_x = x;
+ p_yy1 = &yy[-1];
+
+ for (i = M >> 1; i != 0; i--)
+ {
+ p_a = a;
+
+ s1 = amrnb_fxp_mac_16_by_16bb((Word32) * (p_x++), (Word32) * (p_a), 0x00000800L);
+ s2 = amrnb_fxp_mac_16_by_16bb((Word32) * (p_x++), (Word32) * (p_a++), 0x00000800L);
+ s1 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a++), (Word32) * (p_yy1), s1);
+
+ for (j = (M >> 1) - 2; j != 0; j--)
+ {
+ s2 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a), (Word32) * (p_yy1--), s2);
+ s1 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a++), (Word32) * (p_yy1), s1);
+ s2 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a), (Word32) * (p_yy1--), s2);
+ s1 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a++), (Word32) * (p_yy1), s1);
+ s2 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a), (Word32) * (p_yy1--), s2);
+ s1 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a++), (Word32) * (p_yy1), s1);
+ }
+
+ /* check for overflow on s1 */
+ if ((UWord32)(s1 - 0xf8000000L) < 0x0fffffffL)
+ {
+ temp = (Word16)(s1 >> 12);
+ }
+ else if (s1 > 0x07ffffffL)
+ {
+ temp = MAX_16;
+ }
+ else
+ {
+ temp = MIN_16;
+ }
+
+ s2 = amrnb_fxp_msu_16_by_16bb((Word32)a[1], (Word32)temp, s2);
+
+ *(yy++) = temp;
+ *(p_y++) = temp;
+
+ p_yy1 = yy;
+
+ /* check for overflow on s2 */
+ if ((UWord32)(s2 - 0xf8000000L) < 0x0fffffffL)
+ {
+ temp = (Word16)(s2 >> 12);
+ }
+ else if (s2 > 0x07ffffffL)
+ {
+ temp = MAX_16;
+ }
+ else
+ {
+ temp = MIN_16;
+ }
+
+ *(yy++) = temp;
+ *(p_y++) = temp;
+ }
+
+ p_yy1 = &y[M-1];
+
+ for (i = (lg - M) >> 1; i != 0; i--)
+ {
+ p_a = a;
+
+ s1 = amrnb_fxp_mac_16_by_16bb((Word32) * (p_x++), (Word32) * (p_a), 0x00000800L);
+ s2 = amrnb_fxp_mac_16_by_16bb((Word32) * (p_x++), (Word32) * (p_a++), 0x00000800L);
+ s1 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a++), (Word32) * (p_yy1), s1);
+
+ for (j = (M >> 1) - 2; j != 0; j--)
+ {
+ s2 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a), (Word32) * (p_yy1--), s2);
+ s1 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a++), (Word32) * (p_yy1), s1);
+ s2 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a), (Word32) * (p_yy1--), s2);
+ s1 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a++), (Word32) * (p_yy1), s1);
+ s2 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a), (Word32) * (p_yy1--), s2);
+ s1 = amrnb_fxp_msu_16_by_16bb((Word32) * (p_a++), (Word32) * (p_yy1), s1);
+ }
+
+ if ((UWord32)(s1 - 0xf8000000L) < 0x0fffffffL)
+ {
+ temp = (Word16)(s1 >> 12);
+ }
+ else if (s1 > 0x07ffffffL)
+ {
+ temp = MAX_16;
+ }
+ else
+ {
+ temp = MIN_16;
+ }
+
+ s2 = amrnb_fxp_msu_16_by_16bb((Word32)a[1], (Word32)temp, s2);
+
+ *(p_y++) = temp;
+ p_yy1 = p_y;
+
+ if ((UWord32)(s2 - 0xf8000000L) < 0x0fffffffL)
+ {
+ *(p_y++) = (Word16)(s2 >> 12);
+ }
+ else if (s2 > 0x07ffffffL)
+ {
+ *(p_y++) = MAX_16;
+ }
+ else
+ {
+ *(p_y++) = MIN_16;
+ }
+ }
+
+ /* Update of memory if update==1 */
+ if (update != 0)
+ {
+ oscl_memcpy(mem, &y[lg-M], M*sizeof(Word16));
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: vad1.cpp
+ Functions:
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "vad.h"
+#include "typedef.h"
+#include "shr.h"
+#include "basic_op.h"
+#include "cnst_vad.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: first_filter_stage
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ data -- array of type Word16 -- filter memory
+ in -- array of type Word16 -- input signal
+
+ Outputs:
+ data -- array of type Word16 -- filter memory
+ out -- array of type Word16 -- output values, every other
+ output is low-pass part and
+ other is high-pass part every
+
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Scale input down by one bit. Calculate 5th order
+ half-band lowpass/highpass filter pair with
+ decimation.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void first_filter_stage(
+ Word16 in[], /* i : input signal */
+ Word16 out[], /* o : output values, every other */
+ /* output is low-pass part and */
+ /* other is high-pass part every */
+ Word16 data[], /* i/o : filter memory */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 temp0;
+ Word16 temp1;
+ Word16 temp2;
+ Word16 temp3;
+ Word16 i;
+ Word16 data0;
+ Word16 data1;
+
+ data0 = data[0];
+ data1 = data[1];
+
+ for (i = 0; i < FRAME_LEN / 4; i++)
+ {
+ temp0 = mult(COEFF5_1, data0, pOverflow);
+ temp1 = shr(in[4*i+0], 2, pOverflow);
+ temp0 = sub(temp1, temp0, pOverflow);
+
+ temp1 = mult(COEFF5_1, temp0, pOverflow);
+ temp1 = add(data0, temp1, pOverflow);
+
+ temp3 = mult(COEFF5_2, data1, pOverflow);
+ temp2 = shr(in[4*i+1], 2, pOverflow);
+
+ temp3 = sub(temp2, temp3, pOverflow);
+
+ temp2 = mult(COEFF5_2, temp3, pOverflow);
+ temp2 = add(data1, temp2, pOverflow);
+
+ out[4*i+0] = add(temp1, temp2, pOverflow);
+ out[4*i+1] = sub(temp1, temp2, pOverflow);
+
+ temp1 = mult(COEFF5_1, temp0, pOverflow);
+ temp2 = shr(in[4*i+2], 2, pOverflow);
+ data0 = sub(temp2, temp1, pOverflow);
+
+ temp1 = mult(COEFF5_1, data0, pOverflow);
+ temp1 = add(temp0, temp1, pOverflow);
+
+ data1 = mult(COEFF5_2, temp3, pOverflow);
+ temp2 = shr(in[4*i+3], 2, pOverflow);
+ data1 = sub(temp2, data1, pOverflow);
+
+ temp2 = mult(COEFF5_2, data1, pOverflow);
+ temp2 = add(temp3, temp2, pOverflow);
+
+ out[4*i+2] = add(temp1, temp2, pOverflow);
+ out[4*i+3] = sub(temp1, temp2, pOverflow);
+ }
+
+ data[0] = data0;
+ data[1] = data1;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: filter5
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ in0 -- array of type Word16 -- input values; output low-pass part
+ in1 -- array of type Word16 -- input values; output high-pass part
+ data -- array of type Word16 -- updated filter memory
+
+ Outputs:
+ in0 -- array of type Word16 -- input values; output low-pass part
+ in1 -- array of type Word16 -- input values; output high-pass part
+ data -- array of type Word16 -- updated filter memory
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Fifth-order half-band lowpass/highpass filter pair with
+ decimation.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void filter5(Word16 *in0, /* i/o : input values; output low-pass part */
+ Word16 *in1, /* i/o : input values; output high-pass part */
+ Word16 data[], /* i/o : updated filter memory */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ )
+{
+ Word16 temp0;
+ Word16 temp1;
+ Word16 temp2;
+
+ temp0 = mult(COEFF5_1, data[0], pOverflow);
+ temp0 = sub(*in0, temp0, pOverflow);
+
+ temp1 = mult(COEFF5_1, temp0, pOverflow);
+ temp1 = add(data[0], temp1, pOverflow);
+ data[0] = temp0;
+
+ temp0 = mult(COEFF5_2, data[1], pOverflow);
+ temp0 = sub(*in1, temp0, pOverflow);
+
+ temp2 = mult(COEFF5_2, temp0, pOverflow);
+ temp2 = add(data[1], temp2, pOverflow);
+
+ data[1] = temp0;
+
+ temp0 = add(temp1, temp2, pOverflow);
+ *in0 = shr(temp0, 1, pOverflow);
+
+ temp0 = sub(temp1, temp2, pOverflow);
+ *in1 = shr(temp0, 1, pOverflow);
+}
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: filter3
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+ Inputs:
+ in0 -- array of type Word16 -- input values; output low-pass part
+ in1 -- array of type Word16 -- input values; output high-pass part
+ data -- array of type Word16 -- updated filter memory
+
+ Outputs:
+ in0 -- array of type Word16 -- input values; output low-pass part
+ in1 -- array of type Word16 -- input values; output high-pass part
+ data -- array of type Word16 -- updated filter memory
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Third-order half-band lowpass/highpass filter pair with
+ decimation.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void filter3(
+ Word16 *in0, /* i/o : input values; output low-pass part */
+ Word16 *in1, /* i/o : input values; output high-pass part */
+ Word16 *data, /* i/o : updated filter memory */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 temp1;
+ Word16 temp2;
+
+ temp1 = mult(COEFF3, *data, pOverflow);
+ temp1 = sub(*in1, temp1, pOverflow);
+
+ temp2 = mult(COEFF3, temp1, pOverflow);
+ temp2 = add(*data, temp2, pOverflow);
+
+ *data = temp1;
+
+ temp1 = sub(*in0, temp2, pOverflow);
+
+ *in1 = shr(temp1, 1, pOverflow);
+
+ temp1 = add(*in0, temp2, pOverflow);
+
+ *in0 = shr(temp1, 1, pOverflow);
+}
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: level_calculation
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ data -- array of type Word16 -- signal buffer
+ sub_level -- pointer to type Word16 -- level calculated at the end of
+ the previous frame
+
+ count1 -- Word16 -- number of samples to be counted
+ count2 -- Word16 -- number of samples to be counted
+ ind_m -- Word16 -- step size for the index of the data buffer
+ ind_a -- Word16 -- starting index of the data buffer
+ scale -- Word16 -- scaling for the level calculation
+
+ Outputs:
+ sub_level -- pointer to tyep Word16 -- level of signal calculated from the
+ last (count2 - count1) samples.
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ signal level
+
+ Global Variables Used:
+
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Calculate signal level in a sub-band. Level is calculated
+ by summing absolute values of the input data.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 level_calculation(
+ Word16 data[], /* i : signal buffer */
+ Word16 *sub_level, /* i : level calculate at the end of */
+ /* the previous frame */
+ /* o : level of signal calculated from the last */
+ /* (count2 - count1) samples */
+ Word16 count1, /* i : number of samples to be counted */
+ Word16 count2, /* i : number of samples to be counted */
+ Word16 ind_m, /* i : step size for the index of the data buffer */
+ Word16 ind_a, /* i : starting index of the data buffer */
+ Word16 scale, /* i : scaling for the level calculation */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word32 l_temp1;
+ Word32 l_temp2;
+ Word16 level;
+ Word16 i;
+
+ l_temp1 = 0L;
+
+ for (i = count1; i < count2; i++)
+ {
+ l_temp1 = L_mac(l_temp1, 1, abs_s(data[ind_m*i+ind_a]), pOverflow);
+ }
+
+ l_temp2 = L_add(l_temp1, L_shl(*sub_level, sub(16, scale, pOverflow), pOverflow), pOverflow);
+ *sub_level = extract_h(L_shl(l_temp1, scale, pOverflow));
+
+ for (i = 0; i < count1; i++)
+ {
+ l_temp2 = L_mac(l_temp2, 1, abs_s(data[ind_m*i+ind_a]), pOverflow);
+ }
+ level = extract_h(L_shl(l_temp2, scale, pOverflow));
+
+ return level;
+}
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: filter_bank
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ in -- array of type Word16 -- input frame
+
+ Outputs:
+ level -- array of type Word16 -- signal levels at each band
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Divides input signal into 9-bands and calculas level of
+ the signal in each band
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void filter_bank(
+ vadState1 *st, /* i/o : State struct */
+ Word16 in[], /* i : input frame */
+ Word16 level[], /* 0 : signal levels at each band */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 tmp_buf[FRAME_LEN];
+
+ /* calculate the filter bank */
+
+ first_filter_stage(in, tmp_buf, st->a_data5[0], pOverflow);
+
+ for (i = 0; i < FRAME_LEN / 4; i++)
+ {
+ filter5(&tmp_buf[4*i], &tmp_buf[4*i+2], st->a_data5[1], pOverflow);
+ filter5(&tmp_buf[4*i+1], &tmp_buf[4*i+3], st->a_data5[2], pOverflow);
+ }
+ for (i = 0; i < FRAME_LEN / 8; i++)
+ {
+ filter3(&tmp_buf[8*i+0], &tmp_buf[8*i+4], &st->a_data3[0], pOverflow);
+ filter3(&tmp_buf[8*i+2], &tmp_buf[8*i+6], &st->a_data3[1], pOverflow);
+ filter3(&tmp_buf[8*i+3], &tmp_buf[8*i+7], &st->a_data3[4], pOverflow);
+ }
+
+ for (i = 0; i < FRAME_LEN / 16; i++)
+ {
+ filter3(&tmp_buf[16*i+0], &tmp_buf[16*i+8], &st->a_data3[2], pOverflow);
+ filter3(&tmp_buf[16*i+4], &tmp_buf[16*i+12], &st->a_data3[3], pOverflow);
+ }
+
+ /* calculate levels in each frequency band */
+
+ /* 3000 - 4000 Hz*/
+ level[8] = level_calculation(tmp_buf, &st->sub_level[8], FRAME_LEN / 4 - 8,
+ FRAME_LEN / 4, 4, 1, 15, pOverflow);
+ /* 2500 - 3000 Hz*/
+ level[7] = level_calculation(tmp_buf, &st->sub_level[7], FRAME_LEN / 8 - 4,
+ FRAME_LEN / 8, 8, 7, 16, pOverflow);
+ /* 2000 - 2500 Hz*/
+ level[6] = level_calculation(tmp_buf, &st->sub_level[6], FRAME_LEN / 8 - 4,
+ FRAME_LEN / 8, 8, 3, 16, pOverflow);
+ /* 1500 - 2000 Hz*/
+ level[5] = level_calculation(tmp_buf, &st->sub_level[5], FRAME_LEN / 8 - 4,
+ FRAME_LEN / 8, 8, 2, 16, pOverflow);
+ /* 1000 - 1500 Hz*/
+ level[4] = level_calculation(tmp_buf, &st->sub_level[4], FRAME_LEN / 8 - 4,
+ FRAME_LEN / 8, 8, 6, 16, pOverflow);
+ /* 750 - 1000 Hz*/
+ level[3] = level_calculation(tmp_buf, &st->sub_level[3], FRAME_LEN / 16 - 2,
+ FRAME_LEN / 16, 16, 4, 16, pOverflow);
+ /* 500 - 750 Hz*/
+ level[2] = level_calculation(tmp_buf, &st->sub_level[2], FRAME_LEN / 16 - 2,
+ FRAME_LEN / 16, 16, 12, 16, pOverflow);
+ /* 250 - 500 Hz*/
+ level[1] = level_calculation(tmp_buf, &st->sub_level[1], FRAME_LEN / 16 - 2,
+ FRAME_LEN / 16, 16, 8, 16, pOverflow);
+ /* 0 - 250 Hz*/
+ level[0] = level_calculation(tmp_buf, &st->sub_level[0], FRAME_LEN / 16 - 2,
+ FRAME_LEN / 16, 16, 0, 16, pOverflow);
+}
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: update_cntrl
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ level -- array of type Word16 -- sub-band levels of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Control update of the background noise estimate.
+ Inputs : pitch: flags for pitch detection
+ stat_count: stationary counter
+ tone: flags indicating presence of a tone
+ complex: flags for complex detection
+ vadreg: intermediate VAD flags
+ Output : stat_count: stationary counter
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void update_cntrl(
+ vadState1 *st, /* i/o : State struct */
+ Word16 level[], /* i : sub-band levels of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 temp;
+ Word16 stat_rat;
+ Word16 exp;
+ Word16 num;
+ Word16 denom;
+ Word16 alpha;
+
+ /* handle highband complex signal input separately */
+ /* if ther has been highband correlation for some time */
+ /* make sure that the VAD update speed is low for a while */
+ if (st->complex_warning != 0)
+ {
+ if (st->stat_count < CAD_MIN_STAT_COUNT)
+ {
+ st->stat_count = CAD_MIN_STAT_COUNT;
+ }
+ }
+ /* NB stat_count is allowed to be decreased by one below again */
+ /* deadlock in speech is not possible unless the signal is very */
+ /* complex and need a high rate */
+
+ /* if fullband pitch or tone have been detected for a while, initialize stat_count */
+ if (((Word16)(st->pitch & 0x6000) == 0x6000) ||
+ ((Word16)(st->tone & 0x7c00) == 0x7c00))
+ {
+ st->stat_count = STAT_COUNT;
+ }
+ else
+ {
+ /* if 8 last vad-decisions have been "0", reinitialize stat_count */
+ if ((st->vadreg & 0x7f80) == 0)
+ {
+ st->stat_count = STAT_COUNT;
+ }
+ else
+ {
+ stat_rat = 0;
+ for (i = 0; i < COMPLEN; i++)
+ {
+ if (level[i] > st->ave_level[i])
+ {
+ num = level[i];
+ denom = st->ave_level[i];
+ }
+ else
+ {
+ num = st->ave_level[i];
+ denom = level[i];
+ }
+ /* Limit nimimum value of num and denom to STAT_THR_LEVEL */
+ if (num < STAT_THR_LEVEL)
+ {
+ num = STAT_THR_LEVEL;
+ }
+ if (denom < STAT_THR_LEVEL)
+ {
+ denom = STAT_THR_LEVEL;
+ }
+
+ exp = norm_s(denom);
+
+ denom = shl(denom, exp, pOverflow);
+
+ /* stat_rat = num/denom * 64 */
+ temp = shr(num, 1, pOverflow);
+ temp = div_s(temp, denom);
+
+ stat_rat = add(stat_rat, shr(temp, sub(8, exp, pOverflow), pOverflow), pOverflow);
+ }
+
+ /* compare stat_rat with a threshold and update stat_count */
+ if (stat_rat > STAT_THR)
+ {
+ st->stat_count = STAT_COUNT;
+ }
+ else
+ {
+ if ((st->vadreg & 0x4000) != 0)
+ {
+ if (st->stat_count != 0)
+ {
+ st->stat_count = sub(st->stat_count, 1, pOverflow);
+ }
+ }
+ }
+ }
+ }
+
+ /* Update average amplitude estimate for stationarity estimation */
+ alpha = ALPHA4;
+ if (st->stat_count == STAT_COUNT)
+ {
+ alpha = 32767;
+ }
+ else if ((st->vadreg & 0x4000) == 0)
+ {
+ alpha = ALPHA5;
+ }
+
+ for (i = 0; i < COMPLEN; i++)
+ {
+ temp = sub(level[i], st->ave_level[i], pOverflow);
+ temp = mult_r(alpha, temp, pOverflow);
+
+ st->ave_level[i] =
+ add(
+ st->ave_level[i],
+ temp,
+ pOverflow);
+ }
+}
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: hangover_addition
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ noise_level -- Word16 -- average level of the noise estimates
+ low_power -- Word16 -- flag power of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicato
+
+ Returns:
+ VAD_flag indicating final VAD decision (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : hangover_addition
+ Purpose : Add hangover for complex signal or after speech bursts
+ Inputs : burst_count: counter for the length of speech bursts
+ hang_count: hangover counter
+ vadreg: intermediate VAD decision
+ Outputs : burst_count: counter for the length of speech bursts
+ hang_count: hangover counter
+ Return value : VAD_flag indicating final VAD decision
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 hangover_addition(
+ vadState1 *st, /* i/o : State struct */
+ Word16 noise_level, /* i : average level of the noise */
+ /* estimates */
+ Word16 low_power, /* i : flag power of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 hang_len;
+ Word16 burst_len;
+
+ /*
+ Calculate burst_len and hang_len
+ burst_len: number of consecutive intermediate vad flags with "1"-decision
+ required for hangover addition
+ hang_len: length of the hangover
+ */
+
+ if (noise_level > HANG_NOISE_THR)
+ {
+ burst_len = BURST_LEN_HIGH_NOISE;
+ hang_len = HANG_LEN_HIGH_NOISE;
+ }
+ else
+ {
+ burst_len = BURST_LEN_LOW_NOISE;
+ hang_len = HANG_LEN_LOW_NOISE;
+ }
+
+ /* if the input power (pow_sum) is lower than a threshold, clear
+ counters and set VAD_flag to "0" "fast exit" */
+ if (low_power != 0)
+ {
+ st->burst_count = 0;
+ st->hang_count = 0;
+ st->complex_hang_count = 0;
+ st->complex_hang_timer = 0;
+ return 0;
+ }
+
+ if (st->complex_hang_timer > CVAD_HANG_LIMIT)
+ {
+ if (st->complex_hang_count < CVAD_HANG_LENGTH)
+ {
+ st->complex_hang_count = CVAD_HANG_LENGTH;
+ }
+ }
+
+ /* long time very complex signal override VAD output function */
+ if (st->complex_hang_count != 0)
+ {
+ st->burst_count = BURST_LEN_HIGH_NOISE;
+ st->complex_hang_count = sub(st->complex_hang_count, 1, pOverflow);
+ return 1;
+ }
+ else
+ {
+ /* let hp_corr work in from a noise_period indicated by the VAD */
+ if (((st->vadreg & 0x3ff0) == 0) &&
+ (st->corr_hp_fast > CVAD_THRESH_IN_NOISE))
+ {
+ return 1;
+ }
+ }
+
+ /* update the counters (hang_count, burst_count) */
+ if ((st->vadreg & 0x4000) != 0)
+ {
+ st->burst_count = add(st->burst_count, 1, pOverflow);
+
+ if (st->burst_count >= burst_len)
+ {
+ st->hang_count = hang_len;
+ }
+ return 1;
+ }
+ else
+ {
+ st->burst_count = 0;
+ if (st->hang_count > 0)
+ {
+ st->hang_count = sub(st->hang_count, 1, pOverflow);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: noise_estimate_update
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ level -- array of type Word16 -- sub-band levels of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Update of background noise estimate
+ Inputs : bckr_est: background noise estimate
+ pitch: flags for pitch detection
+ stat_count: stationary counter
+ Outputs : bckr_est: background noise estimate
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void noise_estimate_update(
+ vadState1 *st, /* i/o : State struct */
+ Word16 level[], /* i : sub-band levels of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 alpha_up;
+ Word16 alpha_down;
+ Word16 bckr_add;
+
+ /* Control update of bckr_est[] */
+ update_cntrl(st, level, pOverflow);
+
+ /* Choose update speed */
+ bckr_add = 2;
+
+ if (((0x7800 & st->vadreg) == 0) &&
+ ((st->pitch & 0x7800) == 0)
+ && (st->complex_hang_count == 0))
+ {
+ alpha_up = ALPHA_UP1;
+ alpha_down = ALPHA_DOWN1;
+ }
+ else
+ {
+ if ((st->stat_count == 0)
+ && (st->complex_hang_count == 0))
+ {
+ alpha_up = ALPHA_UP2;
+ alpha_down = ALPHA_DOWN2;
+ }
+ else
+ {
+ alpha_up = 0;
+ alpha_down = ALPHA3;
+ bckr_add = 0;
+ }
+ }
+
+ /* Update noise estimate (bckr_est) */
+ for (i = 0; i < COMPLEN; i++)
+ {
+ Word16 temp;
+
+ temp = sub(st->old_level[i], st->bckr_est[i], pOverflow);
+
+ if (temp < 0)
+ { /* update downwards*/
+ temp = mult_r(alpha_down, temp, pOverflow);
+ temp = add(st->bckr_est[i], temp, pOverflow);
+
+ st->bckr_est[i] = add(-2, temp, pOverflow);
+
+ /* limit minimum value of the noise estimate to NOISE_MIN */
+ if (st->bckr_est[i] < NOISE_MIN)
+ {
+ st->bckr_est[i] = NOISE_MIN;
+ }
+ }
+ else
+ { /* update upwards */
+ temp = mult_r(alpha_up, temp, pOverflow);
+ temp = add(st->bckr_est[i], temp, pOverflow);
+ st->bckr_est[i] = add(bckr_add, temp, pOverflow);
+
+ /* limit maximum value of the noise estimate to NOISE_MAX */
+ if (st->bckr_est[i] > NOISE_MAX)
+ {
+ st->bckr_est[i] = NOISE_MAX;
+ }
+ }
+ }
+
+ /* Update signal levels of the previous frame (old_level) */
+ for (i = 0; i < COMPLEN; i++)
+ {
+ st->old_level[i] = level[i];
+ }
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: complex_estimate_adapt
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ low_power -- Word16 -- very low level flag of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : complex_estimate_adapt
+ Purpose : Update/adapt of complex signal estimate
+ Inputs : low_power: low signal power flag
+ Outputs : st->corr_hp_fast: long term complex signal estimate
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void complex_estimate_adapt(
+ vadState1 *st, /* i/o : VAD state struct */
+ Word16 low_power, /* i : very low level flag of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 alpha; /* Q15 */
+ Word32 L_tmp; /* Q31 */
+
+
+ /* adapt speed on own state */
+ if (st->best_corr_hp < st->corr_hp_fast) /* decrease */
+ {
+ if (st->corr_hp_fast < CVAD_THRESH_ADAPT_HIGH)
+ { /* low state */
+ alpha = CVAD_ADAPT_FAST;
+ }
+ else
+ { /* high state */
+ alpha = CVAD_ADAPT_REALLY_FAST;
+ }
+ }
+ else /* increase */
+ {
+ if (st->corr_hp_fast < CVAD_THRESH_ADAPT_HIGH)
+ {
+ alpha = CVAD_ADAPT_FAST;
+ }
+ else
+ {
+ alpha = CVAD_ADAPT_SLOW;
+ }
+ }
+
+ L_tmp = L_deposit_h(st->corr_hp_fast);
+ L_tmp = L_msu(L_tmp, alpha, st->corr_hp_fast, pOverflow);
+ L_tmp = L_mac(L_tmp, alpha, st->best_corr_hp, pOverflow);
+ st->corr_hp_fast = pv_round(L_tmp, pOverflow); /* Q15 */
+
+ if (st->corr_hp_fast < CVAD_MIN_CORR)
+ {
+ st->corr_hp_fast = CVAD_MIN_CORR;
+ }
+
+ if (low_power != 0)
+ {
+ st->corr_hp_fast = CVAD_MIN_CORR;
+ }
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: complex_vad
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ low_power -- Word16 -- flag power of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+
+ Returns:
+ the complex background decision
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : complex background decision
+ Return value : the complex background decision
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 complex_vad(
+ vadState1 *st, /* i/o : VAD state struct */
+ Word16 low_power, /* i : flag power of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ st->complex_high = shr(st->complex_high, 1, pOverflow);
+ st->complex_low = shr(st->complex_low, 1, pOverflow);
+
+ if (low_power == 0)
+ {
+ if (st->corr_hp_fast > CVAD_THRESH_ADAPT_HIGH)
+ {
+ st->complex_high |= 0x4000;
+ }
+
+ if (st->corr_hp_fast > CVAD_THRESH_ADAPT_LOW)
+ {
+ st->complex_low |= 0x4000;
+ }
+ }
+
+ if (st->corr_hp_fast > CVAD_THRESH_HANG)
+ {
+ st->complex_hang_timer = add(st->complex_hang_timer, 1, pOverflow);
+ }
+ else
+ {
+ st->complex_hang_timer = 0;
+ }
+
+ return ((Word16)(st->complex_high & 0x7f80) == 0x7f80 ||
+ (Word16)(st->complex_low & 0x7fff) == 0x7fff);
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad_decision
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ level -- array of type Word16 -- sub-band levels of the input frame
+ pow_sum -- Word32 -- power of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ VAD_flag (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Calculates VAD_flag
+ Inputs : bckr_est: background noise estimate
+ vadreg: intermediate VAD flags
+ Outputs : noise_level: average level of the noise estimates
+ vadreg: intermediate VAD flags
+ Return value : VAD_flag
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 vad_decision(
+ vadState1 *st, /* i/o : State struct */
+ Word16 level[COMPLEN], /* i : sub-band levels of the input frame */
+ Word32 pow_sum, /* i : power of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 snr_sum;
+ Word32 L_temp;
+ Word16 vad_thr;
+ Word16 temp;
+ Word16 noise_level;
+ Word16 low_power_flag;
+ Word16 temp1;
+
+ /*
+ Calculate squared sum of the input levels (level)
+ divided by the background noise components (bckr_est).
+ */
+ L_temp = 0;
+
+ for (i = 0; i < COMPLEN; i++)
+ {
+ Word16 exp;
+
+ exp = norm_s(st->bckr_est[i]);
+ temp = shl(st->bckr_est[i], exp, pOverflow);
+ temp = div_s(shr(level[i], 1, pOverflow), temp);
+ temp = shl(temp, sub(exp, UNIRSHFT - 1, pOverflow), pOverflow);
+ L_temp = L_mac(L_temp, temp, temp, pOverflow);
+ }
+
+ snr_sum = extract_h(L_shl(L_temp, 6, pOverflow));
+ snr_sum = mult(snr_sum, INV_COMPLEN, pOverflow);
+
+ /* Calculate average level of estimated background noise */
+ L_temp = 0;
+ for (i = 0; i < COMPLEN; i++)
+ {
+ L_temp = L_add(L_temp, st->bckr_est[i], pOverflow);
+ }
+
+ noise_level = extract_h(L_shl(L_temp, 13, pOverflow));
+
+ /* Calculate VAD threshold */
+ temp1 = sub(noise_level, VAD_P1, pOverflow);
+ temp1 = mult(VAD_SLOPE, temp1, pOverflow);
+ vad_thr = add(temp1, VAD_THR_HIGH, pOverflow);
+
+ if (vad_thr < VAD_THR_LOW)
+ {
+ vad_thr = VAD_THR_LOW;
+ }
+
+ /* Shift VAD decision register */
+ st->vadreg = shr(st->vadreg, 1, pOverflow);
+
+ /* Make intermediate VAD decision */
+ if (snr_sum > vad_thr)
+ {
+ st->vadreg |= 0x4000;
+ }
+ /* primary vad decsion made */
+
+ /* check if the input power (pow_sum) is lower than a threshold" */
+ if (L_sub(pow_sum, VAD_POW_LOW, pOverflow) < 0)
+ {
+ low_power_flag = 1;
+ }
+ else
+ {
+ low_power_flag = 0;
+ }
+
+ /* update complex signal estimate st->corr_hp_fast and hangover reset timer using */
+ /* low_power_flag and corr_hp_fast and various adaptation speeds */
+ complex_estimate_adapt(st, low_power_flag, pOverflow);
+
+ /* check multiple thresholds of the st->corr_hp_fast value */
+ st->complex_warning = complex_vad(st, low_power_flag, pOverflow);
+
+ /* Update speech subband vad background noise estimates */
+ noise_estimate_update(st, level, pOverflow);
+
+ /* Add speech and complex hangover and return speech VAD_flag */
+ /* long term complex hangover may be added */
+ st->speech_vad_decision = hangover_addition(st, noise_level, low_power_flag, pOverflow);
+
+ return (st->speech_vad_decision);
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad1_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state -- double pointer to type vadState1 -- pointer to memory to
+ be initialized.
+
+ Outputs:
+ state -- points to initalized area in memory.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Allocates state memory and initializes state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 vad1_init(vadState1 **state)
+{
+ vadState1* s;
+
+ if (state == (vadState1 **) NULL)
+ {
+ return -1;
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (vadState1 *) oscl_malloc(sizeof(vadState1))) == NULL)
+ {
+ return -1;
+ }
+
+ vad1_reset(s);
+
+ *state = s;
+
+ return 0;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad1_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose: Resets state memory to zero
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 vad1_reset(vadState1 *state)
+{
+ Word16 i;
+ Word16 j;
+
+ if (state == (vadState1 *) NULL)
+ {
+ return -1;
+ }
+
+ /* Initialize pitch detection variables */
+ state->oldlag_count = 0;
+ state->oldlag = 0;
+ state->pitch = 0;
+ state->tone = 0;
+
+ state->complex_high = 0;
+ state->complex_low = 0;
+ state->complex_hang_timer = 0;
+
+ state->vadreg = 0;
+
+ state->stat_count = 0;
+ state->burst_count = 0;
+ state->hang_count = 0;
+ state->complex_hang_count = 0;
+
+ /* initialize memory used by the filter bank */
+ for (i = 0; i < 3; i++)
+ {
+ for (j = 0; j < 2; j++)
+ {
+ state->a_data5[i][j] = 0;
+ }
+ }
+
+ for (i = 0; i < 5; i++)
+ {
+ state->a_data3[i] = 0;
+ }
+
+ /* initialize the rest of the memory */
+ for (i = 0; i < COMPLEN; i++)
+ {
+ state->bckr_est[i] = NOISE_INIT;
+ state->old_level[i] = NOISE_INIT;
+ state->ave_level[i] = NOISE_INIT;
+ state->sub_level[i] = 0;
+ }
+
+ state->best_corr_hp = CVAD_LOWPOW_RESET;
+
+ state->speech_vad_decision = 0;
+ state->complex_warning = 0;
+ state->sp_burst_count = 0;
+
+ state->corr_hp_fast = CVAD_LOWPOW_RESET;
+
+ return 0;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad1_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ The memory used for state memory is freed
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad1_exit(vadState1 **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad_complex_detection_update
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ best_corr_hp -- Word16 -- best Corr
+ state -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : update vad->bestCorr_hp complex signal feature state
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad_complex_detection_update(
+ vadState1 *st, /* i/o : State struct */
+ Word16 best_corr_hp) /* i : best Corr */
+{
+ st->best_corr_hp = best_corr_hp;
+}
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad_tone_detection
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ t0 -- Word32 -- autocorrelation maxima
+ t1 -- Word32 -- energy
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Set tone flag if pitch gain is high. This is used to detect
+ signaling tones and other signals with high pitch gain.
+ Inputs : tone: flags indicating presence of a tone
+ Outputs : tone: flags indicating presence of a tone
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad_tone_detection(
+ vadState1 *st, /* i/o : State struct */
+ Word32 t0, /* i : autocorrelation maxima */
+ Word32 t1, /* i : energy */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 temp;
+ /*
+ if (t0 > TONE_THR * t1)
+ set tone flag
+ */
+ temp = pv_round(t1, pOverflow);
+
+ if ((temp > 0) && (L_msu(t0, temp, TONE_THR, pOverflow) > 0))
+ {
+ st->tone |= 0x4000;
+ }
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad_tone_detection_update
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ one_lag_per_frame -- Word16 -- 1 if one open-loop lag is calculated per
+ each frame, otherwise 0
+ st -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Update the tone flag register. Tone flags are shifted right
+ by one bit. This function should be called from the speech
+ encoder before call to Vad_tone_detection() function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad_tone_detection_update(
+ vadState1 *st, /* i/o : State struct */
+ Word16 one_lag_per_frame, /* i : 1 if one open-loop lag */
+ /* is calculated per each */
+ /* frame, otherwise 0 */
+ Flag *pOverflow /* o : Flags overflow */
+)
+{
+ /* Shift tone flags right by one bit */
+ st->tone = shr(st->tone, 1, pOverflow);
+
+ /* If open-loop lag is calculated only once in each frame, do extra update
+ and assume that the other tone flag of the frame is one. */
+ if (one_lag_per_frame != 0)
+ {
+ st->tone = shr(st->tone, 1, pOverflow);
+ st->tone |= 0x2000;
+ }
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad_pitch_detection
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ T_op -- array of type Word16 -- speech encoder open loop lags
+ st -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Test whether signal contains pitch or other periodic
+ component.
+ Return value : Boolean voiced / unvoiced decision in state variable
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad_pitch_detection(
+ vadState1 *st, /* i/o : State struct */
+ Word16 T_op[], /* i : speech encoder open loop lags */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 lagcount;
+ Word16 i;
+ Word16 temp;
+
+ lagcount = 0;
+
+ for (i = 0; i < 2; i++)
+ {
+ temp = sub(st->oldlag, T_op[i], pOverflow);
+ temp = abs_s(temp);
+
+ if (temp < LTHRESH)
+ {
+ lagcount = add(lagcount, 1, pOverflow);
+ }
+
+ /* Save the current LTP lag */
+ st->oldlag = T_op[i];
+ }
+
+ /* Make pitch decision.
+ Save flag of the pitch detection to the variable pitch.
+ */
+ st->pitch = shr(st->pitch, 1, pOverflow);
+
+ temp =
+ add(
+ st->oldlag_count,
+ lagcount,
+ pOverflow);
+
+ if (temp >= NTHRESH)
+ {
+ st->pitch |= 0x4000;
+ }
+
+ /* Update oldlagcount */
+ st->oldlag_count = lagcount;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad1
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ in_buf -- array of type Word16 -- samples of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ VAD Decision, 1 = speech, 0 = noise
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Main program for Voice Activity Detection (VAD) for AMR
+ Return value : VAD Decision, 1 = speech, 0 = noise
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 vad1(
+ vadState1 *st, /* i/o : State struct */
+ Word16 in_buf[], /* i : samples of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 level[COMPLEN];
+ Word32 pow_sum;
+ Word16 i;
+
+ /* Calculate power of the input frame. */
+ pow_sum = 0L;
+
+ for (i = 0; i < FRAME_LEN; i++)
+ {
+ pow_sum = L_mac(pow_sum, in_buf[i-LOOKAHEAD], in_buf[i-LOOKAHEAD], pOverflow);
+ }
+
+ /*
+ If input power is very low, clear pitch flag of the current frame
+ */
+ if (L_sub(pow_sum, POW_PITCH_THR, pOverflow) < 0)
+ {
+ st->pitch = st->pitch & 0x3fff;
+ }
+
+ /*
+ If input power is very low, clear complex flag of the "current" frame
+ */
+ if (L_sub(pow_sum, POW_COMPLEX_THR, pOverflow) < 0)
+ {
+ st->complex_low = st->complex_low & 0x3fff;
+ }
+
+ /*
+ Run the filter bank which calculates signal levels at each band
+ */
+ filter_bank(st, in_buf, level, pOverflow);
+
+ return (vad_decision(st, level, pow_sum, pOverflow));
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: vad2.cpp
+ Functions:
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "log2.h"
+#include "pow2.h"
+#include "sub.h"
+#include "l_shr_r.h"
+#include "abs_s.h"
+#include "norm_s.h"
+#include "shl.h"
+#include "l_add.h"
+#include "shr_r.h"
+#include "add.h"
+#include "mult.h"
+#include "l_shr.h"
+#include "mpy_32_16.h"
+#include "l_mac.h"
+#include "l_extract.h"
+#include "l_sub.h"
+#include "l_mult.h"
+#include "round.h"
+#include "shr.h"
+#include "l_shl.h"
+#include "mult_r.h"
+#include "div_s.h"
+#include "oscl_mem.h"
+
+
+#include "vad2.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+ * The channel table is defined below. In this table, the
+ * lower and higher frequency coefficients for each of the 16
+ * channels are specified. The table excludes the coefficients
+ * with numbers 0 (DC), 1, and 64 (Foldover frequency).
+ */
+
+const Word16 ch_tbl[NUM_CHAN][2] =
+{
+
+ {2, 3},
+ {4, 5},
+ {6, 7},
+ {8, 9},
+ {10, 11},
+ {12, 13},
+ {14, 16},
+ {17, 19},
+ {20, 22},
+ {23, 26},
+ {27, 30},
+ {31, 35},
+ {36, 41},
+ {42, 48},
+ {49, 55},
+ {56, 63}
+
+};
+
+/* channel energy scaling table - allows efficient division by number
+ * of DFT bins in the channel: 1/2, 1/3, 1/4, etc.
+ */
+
+const Word16 ch_tbl_sh[NUM_CHAN] =
+{
+ 16384, 16384, 16384, 16384, 16384, 16384, 10923, 10923,
+ 10923, 8192, 8192, 6554, 5461, 4681, 4681, 4096
+};
+
+/*
+ * The voice metric table is defined below. It is a non-
+ * linear table with a deadband near zero. It maps the SNR
+ * index (quantized SNR value) to a number that is a measure
+ * of voice quality.
+ */
+
+const Word16 vm_tbl[90] =
+{
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 3, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 7, 7, 7,
+ 8, 8, 9, 9, 10, 10, 11, 12, 12, 13, 13, 14, 15,
+ 15, 16, 17, 17, 18, 19, 20, 20, 21, 22, 23, 24,
+ 24, 25, 26, 27, 28, 28, 29, 30, 31, 32, 33, 34,
+ 35, 36, 37, 37, 38, 39, 40, 41, 42, 43, 44, 45,
+ 46, 47, 48, 49, 50, 50, 50, 50, 50, 50, 50, 50,
+ 50, 50
+};
+
+/* hangover as a function of peak SNR (3 dB steps) */
+const Word16 hangover_table[20] =
+{
+ 30, 30, 30, 30, 30, 30, 28, 26, 24, 22, 20, 18, 16, 14, 12, 10, 8, 8, 8, 8
+};
+
+/* burst sensitivity as a function of peak SNR (3 dB steps) */
+const Word16 burstcount_table[20] =
+{
+ 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4
+};
+
+/* voice metric sensitivity as a function of peak SNR (3 dB steps) */
+const Word16 vm_threshold_table[20] =
+{
+ 34, 34, 34, 34, 34, 34, 34, 34, 34, 34,
+ 34, 40, 51, 71, 100, 139, 191, 257, 337, 432
+};
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: fn10Log10
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_Input -- Word32 -- (scaled as 31-fbits,fbits)
+ fbits -- Word16 -- number of fractional bits on input
+
+ Outputs:
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ output -- Word16 -- (scaled as 7,8)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE:
+ The purpose of this function is to take the 10*log base 10 of input and
+ divide by 128 and return; i.e. output = 10*log10(input)/128 (scaled as 7,8)
+
+ DESCRIPTION:
+
+ 10*log10(x)/128 = 10*(log10(2) * (log2(x<<fbits)-log2(1<<fbits)) >> 7
+ = 3.0103 * (log2(x<<fbits) - fbits) >> 7
+ = ((3.0103/4.0 * (log2(x<<fbits) - fbits) << 2) >> 7
+ = (3.0103/4.0 * (log2(x<<fbits) - fbits) >> 5
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad2.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 fn10Log10(Word32 L_Input, Word16 fbits, Flag *pOverflow)
+{
+
+ Word16 integer; /* Integer part of Log2. (range: 0<=val<=30) */
+ Word16 fraction; /* Fractional part of Log2. (range: 0<=val<1) */
+
+ Word32 Ltmp;
+ Word16 tmp;
+
+ Log2(L_Input, &integer, &fraction, pOverflow);
+
+ integer = sub(integer, fbits, pOverflow);
+
+ /* 24660 = 10*log10(2)/4 scaled 0,15 */
+ Ltmp = Mpy_32_16(integer, fraction, 24660, pOverflow);
+
+ /* extra shift for 30,1 => 15,0 extract correction */
+ Ltmp = L_shr_r(Ltmp, 5 + 1, pOverflow);
+
+ tmp = (Word16) Ltmp;
+
+ return (tmp);
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: block_norm
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ in -- array of type Word16 -- pointer to data sequence to be normalised
+ length -- Word16 -- number of elements in data sequence
+ headroom -- Word16 -- number of headroom bits
+
+ Outputs:
+ out -- array of type Word16 -- normalised output data sequence
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ Word16 -- number of bits sequence was left shifted
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ The purpose of this function is block normalise the input data sequence
+
+ 1) Search for maximum absolute valued data element
+ 2) Normalise the max element with "headroom"
+ 3) Transfer/shift the input sequence to the output buffer
+ 4) Return the number of left shifts
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad2.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION
+
+ An input sequence of all zeros will return the maximum
+ number of left shifts allowed, NOT the value returned
+ by a norm_s(0) call, since it desired to associate an
+ all zeros sequence with low energy.
+------------------------------------------------------------------------------
+*/
+
+Word16 block_norm(
+ Word16 * in,
+ Word16 * out,
+ Word16 length,
+ Word16 headroom,
+ Flag *pOverflow)
+{
+
+ Word16 i;
+ Word16 max;
+ Word16 scnt;
+ Word16 adata;
+
+ max = abs_s(in[0]);
+
+ for (i = 1; i < length; i++)
+ {
+ adata = abs_s(in[i]);
+
+ if (adata > max)
+ {
+ max = adata;
+ }
+ }
+ if (max != 0)
+ {
+ scnt = sub(norm_s(max), headroom, pOverflow);
+ for (i = 0; i < length; i++)
+ {
+ out[i] = shl(in[i], scnt, pOverflow);
+ }
+ }
+ else
+ {
+ scnt = sub(16, headroom, pOverflow);
+ for (i = 0; i < length; i++)
+ {
+ out[i] = 0;
+ }
+ }
+ return (scnt);
+}
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad2
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ farray_ptr -- array of type Word16, length 80 (input array)
+ vadState2 -- pointer to vadState2 state structure
+
+ Outputs:
+ vadState2 -- pointer to vadState2 state structure --
+ state variables are updated
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ Word16
+ VAD(m) - two successive calls to vad2() yield
+ the VAD decision for the 20 ms frame:
+ VAD_flag = VAD(m-1) || VAD(m)
+
+ Global Variables Used:
+
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function provides the Voice Activity Detection function option 2
+ for the Adaptive Multi-rate (AMR) codec.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad2.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 vad2(Word16 * farray_ptr, vadState2 * st, Flag *pOverflow)
+{
+
+ /* State tables that use 22,9 or 27,4 scaling for ch_enrg[] */
+
+ const Word16 noise_floor_chan[2] = {NOISE_FLOOR_CHAN_0, NOISE_FLOOR_CHAN_1};
+ const Word16 min_chan_enrg[2] = {MIN_CHAN_ENRG_0, MIN_CHAN_ENRG_1};
+ const Word16 ine_noise[2] = {INE_NOISE_0, INE_NOISE_1};
+ const Word16 fbits[2] = {FRACTIONAL_BITS_0, FRACTIONAL_BITS_1};
+ const Word16 state_change_shift_r[2] = {STATE_1_TO_0_SHIFT_R, STATE_0_TO_1_SHIFT_R};
+
+ /* Energy scale table given 30,1 input scaling (also account for -6 dB shift on input) */
+ const Word16 enrg_norm_shift[2] = {(FRACTIONAL_BITS_0 - 1 + 2), (FRACTIONAL_BITS_1 - 1 + 2)};
+
+
+ /* Automatic variables */
+
+ Word32 Lenrg; /* scaled as 30,1 */
+ Word32 Ltne; /* scaled as 22,9 */
+ Word32 Ltce; /* scaled as 22,9 or 27,4 */
+
+ Word16 tne_db; /* scaled as 7,8 */
+ Word16 tce_db; /* scaled as 7,8 */
+
+ Word16 input_buffer[FRM_LEN]; /* used for block normalising input data */
+ Word16 data_buffer[FFT_LEN]; /* used for in-place FFT */
+
+ Word16 ch_snr[NUM_CHAN]; /* scaled as 7,8 */
+ Word16 ch_snrq; /* scaled as 15,0 (in 0.375 dB steps) */
+ Word16 vm_sum; /* scaled as 15,0 */
+ Word16 ch_enrg_dev; /* scaled as 7,8 */
+
+ Word32 Lpeak; /* maximum channel energy */
+ Word16 p2a_flag; /* flag to indicate spectral peak-to-average ratio > 10 dB */
+
+ Word16 ch_enrg_db[NUM_CHAN]; /* scaled as 7,8 */
+ Word16 ch_noise_db; /* scaled as 7,8 */
+
+ Word16 alpha; /* scaled as 0,15 */
+ Word16 one_m_alpha; /* scaled as 0,15 */
+ Word16 update_flag; /* set to indicate a background noise estimate update */
+
+ Word16 i;
+ Word16 j;
+ Word16 j1;
+ Word16 j2; /* Scratch variables */
+
+ Word16 hi1;
+ Word16 lo1;
+
+ Word32 Ltmp;
+ Word32 Ltmp1;
+ Word32 Ltmp2;
+ Word16 tmp;
+
+ Word16 normb_shift; /* block norm shift count */
+
+ Word16 ivad; /* intermediate VAD decision (return value) */
+ Word16 tsnrq; /* total signal-to-noise ratio (quantized 3 dB steps) scaled as 15,0 */
+ Word16 xt; /* instantaneous frame SNR in dB, scaled as 7,8 */
+
+ Word16 state_change;
+
+
+ /* Increment frame counter */
+ st->Lframe_cnt = L_add(st->Lframe_cnt, 1, pOverflow);
+
+ /* Block normalize the input */
+ normb_shift = block_norm(farray_ptr, input_buffer, FRM_LEN, FFT_HEADROOM, pOverflow);
+
+ /* Pre-emphasize the input data and store in the data buffer with the appropriate offset */
+ for (i = 0; i < DELAY; i++)
+ {
+ data_buffer[i] = 0;
+ }
+
+ st->pre_emp_mem = shr_r(st->pre_emp_mem, sub(st->last_normb_shift, normb_shift, pOverflow), pOverflow);
+ st->last_normb_shift = normb_shift;
+
+ data_buffer[DELAY] = add(input_buffer[0], mult(PRE_EMP_FAC, st->pre_emp_mem, pOverflow), pOverflow);
+
+ for (i = DELAY + 1, j = 1; i < DELAY + FRM_LEN; i++, j++)
+ {
+ data_buffer[i] = add(input_buffer[j], mult(PRE_EMP_FAC, input_buffer[j-1], pOverflow), pOverflow);
+ }
+ st->pre_emp_mem = input_buffer[FRM_LEN-1];
+
+ for (i = DELAY + FRM_LEN; i < FFT_LEN; i++)
+ {
+ data_buffer[i] = 0;
+ }
+
+
+ /* Perform FFT on the data buffer */
+ r_fft(data_buffer, pOverflow);
+
+
+ /* Use normb_shift factor to determine the scaling of the energy estimates */
+ state_change = 0;
+ if (st->shift_state == 0)
+ {
+ if (normb_shift <= (-FFT_HEADROOM + 2))
+ {
+ state_change = 1;
+ st->shift_state = 1;
+ }
+ }
+ else
+ {
+ if (normb_shift >= (-FFT_HEADROOM + 5))
+ {
+ state_change = 1;
+ st->shift_state = 0;
+ }
+ }
+
+ /* Scale channel energy estimate */
+ if (state_change)
+ {
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ st->Lch_enrg[i] =
+ L_shr(
+ st->Lch_enrg[i],
+ state_change_shift_r[st->shift_state],
+ pOverflow);
+ }
+ }
+
+
+ /* Estimate the energy in each channel */
+ if (st->Lframe_cnt == 1)
+ {
+ alpha = 32767;
+ one_m_alpha = 0;
+ }
+ else
+ {
+ alpha = CEE_SM_FAC;
+ one_m_alpha = ONE_MINUS_CEE_SM_FAC;
+ }
+
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ Lenrg = 0;
+ j1 = ch_tbl[i][0];
+ j2 = ch_tbl[i][1];
+
+ for (j = j1; j <= j2; j++)
+ {
+ Lenrg = L_mac(
+ Lenrg,
+ data_buffer[2 * j],
+ data_buffer[2 * j],
+ pOverflow);
+
+ Lenrg = L_mac(
+ Lenrg,
+ data_buffer[2 * j + 1],
+ data_buffer[2 * j + 1],
+ pOverflow);
+ }
+
+ /* Denorm energy & scale 30,1 according to the state */
+ tmp = shl(normb_shift, 1, pOverflow);
+ tmp = sub(tmp, enrg_norm_shift[st->shift_state], pOverflow);
+ Lenrg = L_shr_r(Lenrg, tmp, pOverflow);
+
+ /* integrate over time:
+ * e[i] = (1-alpha)*e[i] + alpha*enrg/num_bins_in_chan
+ */
+ tmp = mult(alpha, ch_tbl_sh[i], pOverflow);
+ L_Extract(Lenrg, &hi1, &lo1, pOverflow);
+ Ltmp = Mpy_32_16(hi1, lo1, tmp, pOverflow);
+
+ L_Extract(st->Lch_enrg[i], &hi1, &lo1, pOverflow);
+
+ Ltmp1 = Mpy_32_16(hi1, lo1, one_m_alpha, pOverflow);
+ st->Lch_enrg[i] = L_add(Ltmp, Ltmp1, pOverflow);
+
+ if (st->Lch_enrg[i] < min_chan_enrg[st->shift_state])
+ {
+ st->Lch_enrg[i] = min_chan_enrg[st->shift_state];
+ }
+
+ }
+
+
+ /* Compute the total channel energy estimate (Ltce) */
+ Ltce = 0;
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ Ltce =
+ L_add(
+ Ltce,
+ st->Lch_enrg[i],
+ pOverflow);
+ }
+
+
+ /* Calculate spectral peak-to-average ratio, set flag if p2a > 10 dB */
+ Lpeak = 0;
+
+ /* Sine waves not valid for low frequencies */
+ for (i = LO_CHAN + 2; i <= HI_CHAN; i++)
+ {
+ if (L_sub(st->Lch_enrg [i], Lpeak, pOverflow) > 0)
+ {
+ Lpeak = st->Lch_enrg [i];
+ }
+ }
+
+ /* Set p2a_flag if peak (dB) > average channel energy (dB) + 10 dB */
+ /* Lpeak > Ltce/num_channels * 10^(10/10) */
+ /* Lpeak > (10/16)*Ltce */
+
+ L_Extract(Ltce, &hi1, &lo1, pOverflow);
+ Ltmp = Mpy_32_16(hi1, lo1, 20480, pOverflow);
+ if (L_sub(Lpeak, Ltmp, pOverflow) > 0)
+ {
+ p2a_flag = TRUE;
+ }
+ else
+ {
+ p2a_flag = FALSE;
+ }
+
+
+ /* Initialize channel noise estimate to either the channel energy or fixed level */
+ /* Scale the energy appropriately to yield state 0 (22,9) scaling for noise */
+ if (st->Lframe_cnt <= 4)
+ {
+ if (p2a_flag == TRUE)
+ {
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ st->Lch_noise[i] = INE_NOISE_0;
+ }
+ }
+ else
+ {
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ if (st->Lch_enrg[i] < ine_noise[st->shift_state])
+ {
+ st->Lch_noise[i] = INE_NOISE_0;
+ }
+ else
+ {
+ if (st->shift_state == 1)
+ {
+ st->Lch_noise[i] =
+ L_shr(
+ st->Lch_enrg[i],
+ state_change_shift_r[0],
+ pOverflow);
+ }
+ else
+ {
+ st->Lch_noise[i] = st->Lch_enrg[i];
+ }
+ }
+ }
+ }
+ }
+
+
+ /* Compute the channel energy (in dB), the channel SNRs, and the sum of voice metrics */
+ vm_sum = 0;
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ ch_enrg_db[i] =
+ fn10Log10(
+ st->Lch_enrg[i],
+ fbits[st->shift_state],
+ pOverflow);
+
+ ch_noise_db =
+ fn10Log10(
+ st->Lch_noise[i],
+ FRACTIONAL_BITS_0,
+ pOverflow);
+
+ ch_snr[i] = sub(ch_enrg_db[i], ch_noise_db, pOverflow);
+
+ /* quantize channel SNR in 3/8 dB steps (scaled 7,8 => 15,0) */
+ /* ch_snr = pv_round((snr/(3/8))>>8) */
+ /* = pv_round(((0.6667*snr)<<2)>>8) */
+ /* = pv_round((0.6667*snr)>>6) */
+
+ tmp = mult(21845, ch_snr[i], pOverflow);
+
+ ch_snrq = shr_r(tmp, 6, pOverflow);
+
+ /* Accumulate the sum of voice metrics */
+ if (ch_snrq < 89)
+ {
+ if (ch_snrq > 0)
+ {
+ j = ch_snrq;
+ }
+ else
+ {
+ j = 0;
+ }
+ }
+ else
+ {
+ j = 89;
+ }
+ vm_sum = add(vm_sum, vm_tbl[j], pOverflow);
+ }
+
+
+ /* Initialize NOMINAL peak voice energy and average noise energy, calculate instantaneous SNR */
+ if (st->Lframe_cnt <= 4 || st->fupdate_flag == TRUE)
+ {
+ /* tce_db = (96 - 22 - 10*log10(64) (due to FFT)) scaled as 7,8 */
+ tce_db = 14320;
+ st->negSNRvar = 0;
+ st->negSNRbias = 0;
+
+ /* Compute the total noise estimate (Ltne) */
+ Ltne = 0;
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ Ltne = L_add(Ltne, st->Lch_noise[i], pOverflow);
+ }
+
+ /* Get total noise in dB */
+ tne_db =
+ fn10Log10(
+ Ltne,
+ FRACTIONAL_BITS_0,
+ pOverflow);
+
+ /* Initialise instantaneous and long-term peak signal-to-noise ratios */
+ xt = sub(tce_db, tne_db, pOverflow);
+ st->tsnr = xt;
+ }
+ else
+ {
+ /* Calculate instantaneous frame signal-to-noise ratio */
+ /* xt = 10*log10( sum(2.^(ch_snr*0.1*log2(10)))/length(ch_snr) ) */
+ Ltmp1 = 0;
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ /* Ltmp2 = ch_snr[i] * 0.1 * log2(10); (ch_snr scaled as 7,8) */
+ Ltmp2 = L_mult(ch_snr[i], 10885, pOverflow);
+ Ltmp2 = L_shr(Ltmp2, 8, pOverflow);
+
+ L_Extract(Ltmp2, &hi1, &lo1, pOverflow);
+ hi1 = add(hi1, 3, pOverflow); /* 2^3 to compensate for negative SNR */
+
+ Ltmp2 = Pow2(hi1, lo1, pOverflow);
+
+ Ltmp1 = L_add(Ltmp1, Ltmp2, pOverflow);
+ }
+ xt =
+ fn10Log10(
+ Ltmp1,
+ 4 + 3,
+ pOverflow); /* average by 16, inverse compensation 2^3 */
+
+ /* Estimate long-term "peak" SNR */
+ if (xt > st->tsnr)
+ {
+ Ltmp1 = L_mult(29491, st->tsnr, pOverflow);
+ Ltmp2 = L_mult(3277, xt, pOverflow);
+ Ltmp1 = L_add(Ltmp1, Ltmp2, pOverflow);
+
+ /* tsnr = 0.9*tsnr + 0.1*xt; */
+ st->tsnr = pv_round(Ltmp1, pOverflow);
+ }
+ /* else if (xt > 0.625*tsnr) */
+ else
+ {
+ tmp = mult(20480, st->tsnr, pOverflow);
+ tmp = sub(xt, tmp, pOverflow);
+
+ if (tmp > 0)
+ {
+ /* tsnr = 0.998*tsnr + 0.002*xt; */
+ Ltmp1 = L_mult(32702, st->tsnr, pOverflow);
+ Ltmp2 = L_mult(66, xt, pOverflow);
+ Ltmp1 = L_add(Ltmp1, Ltmp2, pOverflow);
+
+ st->tsnr = pv_round(Ltmp1, pOverflow);
+ }
+ }
+ }
+
+ /* Quantize the long-term SNR in 3 dB steps, limit to 0 <= tsnrq <= 19 */
+ tmp = mult(st->tsnr, 10923, pOverflow);
+ tsnrq = shr(tmp, 8, pOverflow);
+
+ /* tsnrq = min(19, max(0, tsnrq)); */
+ if (tsnrq > 19)
+ {
+ tsnrq = 19;
+ }
+ else if (tsnrq < 0)
+ {
+ tsnrq = 0;
+ }
+
+ /* Calculate the negative SNR sensitivity bias */
+ if (xt < 0)
+ {
+ /* negSNRvar = 0.99*negSNRvar + 0.01*xt*xt; */
+ /* xt scaled as 7,8 => xt*xt scaled as 14,17, shift to 7,8 and round */
+ Ltmp1 = L_mult(xt, xt, pOverflow);
+ Ltmp1 = L_shl(Ltmp1, 7, pOverflow);
+ tmp = pv_round(Ltmp1, pOverflow);
+
+ Ltmp1 = L_mult(32440, st->negSNRvar, pOverflow);
+ Ltmp2 = L_mult(328, tmp, pOverflow);
+ Ltmp1 = L_add(Ltmp1, Ltmp2, pOverflow);
+
+ st->negSNRvar = pv_round(Ltmp1, pOverflow);
+
+ /* if (negSNRvar > 4.0) negSNRvar = 4.0; */
+ if (st->negSNRvar > 1024)
+ {
+ st->negSNRvar = 1024;
+ }
+
+ /* negSNRbias = max(12.0*(negSNRvar - 0.65), 0.0); */
+ tmp = sub(st->negSNRvar, 166, pOverflow);
+ tmp = shl(tmp, 4, pOverflow);
+ tmp = mult_r(tmp, 24576, pOverflow);
+
+ if (tmp < 0)
+ {
+ st->negSNRbias = 0;
+ }
+ else
+ {
+ st->negSNRbias = shr(tmp, 8, pOverflow);
+ }
+ }
+
+
+ /* Determine VAD as a function of the voice metric sum and quantized SNR */
+
+ tmp = add(vm_threshold_table[tsnrq], st->negSNRbias, pOverflow);
+
+ if (vm_sum > tmp)
+ {
+ ivad = 1;
+ st->burstcount = add(st->burstcount, 1, pOverflow);
+ if (st->burstcount > burstcount_table[tsnrq])
+ {
+ st->hangover = hangover_table[tsnrq];
+ }
+ }
+ else
+ {
+ st->burstcount = 0;
+ st->hangover = sub(st->hangover, 1, pOverflow);
+ if (st->hangover <= 0)
+ {
+ ivad = 0;
+ st->hangover = 0;
+ }
+ else
+ {
+ ivad = 1;
+ }
+ }
+
+
+ /* Calculate log spectral deviation */
+ ch_enrg_dev = 0;
+ if (st->Lframe_cnt == 1)
+ {
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ st->ch_enrg_long_db[i] = ch_enrg_db[i];
+ }
+ }
+ else
+ {
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ tmp = sub(st->ch_enrg_long_db[i], ch_enrg_db[i], pOverflow);
+ tmp = abs_s(tmp);
+
+ ch_enrg_dev = add(ch_enrg_dev, tmp, pOverflow);
+ }
+ }
+
+ /*
+ * Calculate long term integration constant as
+ * a function of instantaneous SNR
+ * (i.e., high SNR (tsnr dB) -> slower integration (alpha = HIGH_ALPHA),
+ * low SNR (0 dB) -> faster integration (alpha = LOW_ALPHA)
+ */
+
+ /* alpha = HIGH_ALPHA - ALPHA_RANGE * (tsnr - xt)
+ * ----------------------------------------------
+ * tsnr, low <= alpha <= high
+ */
+ tmp = sub(st->tsnr, xt, pOverflow);
+ if (tmp <= 0 || st->tsnr <= 0)
+ {
+ alpha = HIGH_ALPHA;
+ one_m_alpha = 32768L - HIGH_ALPHA;
+ }
+ else if (tmp > st->tsnr)
+ {
+ alpha = LOW_ALPHA;
+ one_m_alpha = 32768L - LOW_ALPHA;
+ }
+ else
+ {
+ tmp = div_s(tmp, st->tsnr);
+ tmp = mult(ALPHA_RANGE, tmp, pOverflow);
+ alpha = sub(HIGH_ALPHA, tmp, pOverflow);
+ one_m_alpha = sub(32767, alpha, pOverflow);
+ }
+
+ /* Calc long term log spectral energy */
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ Ltmp1 = L_mult(one_m_alpha, ch_enrg_db[i], pOverflow);
+ Ltmp2 = L_mult(alpha, st->ch_enrg_long_db[i], pOverflow);
+
+ Ltmp1 = L_add(Ltmp1, Ltmp2, pOverflow);
+ st->ch_enrg_long_db[i] = pv_round(Ltmp1, pOverflow);
+ }
+
+
+ /* Set or clear the noise update flags */
+ update_flag = FALSE;
+ st->fupdate_flag = FALSE;
+ if (vm_sum <= UPDATE_THLD)
+ {
+ if (st->burstcount == 0)
+ {
+ update_flag = TRUE;
+ st->update_cnt = 0;
+ }
+ }
+ else if (L_sub(Ltce, noise_floor_chan[st->shift_state], pOverflow) > 0)
+ {
+ if (ch_enrg_dev < DEV_THLD)
+ {
+ if (p2a_flag == FALSE)
+ {
+ if (st->LTP_flag == FALSE)
+ {
+ st->update_cnt = add(st->update_cnt, 1, pOverflow);
+ if (st->update_cnt >= UPDATE_CNT_THLD)
+ {
+ update_flag = TRUE;
+ st->fupdate_flag = TRUE;
+ }
+ }
+ }
+ }
+ }
+ if (st->update_cnt == st->last_update_cnt)
+ {
+ st->hyster_cnt = add(st->hyster_cnt, 1, pOverflow);
+ }
+ else
+ {
+ st->hyster_cnt = 0;
+ }
+
+ st->last_update_cnt = st->update_cnt;
+
+ if (st->hyster_cnt > HYSTER_CNT_THLD)
+ {
+ st->update_cnt = 0;
+ }
+
+
+ /* Conditionally update the channel noise estimates */
+ if (update_flag == TRUE)
+ {
+ /* Check shift state */
+ if (st->shift_state == 1)
+ {
+ /* get factor to shift ch_enrg[]
+ * from state 1 to 0 (noise always state 0)
+ */
+ tmp = state_change_shift_r[0];
+ }
+ else
+ {
+ /* No shift if already state 0 */
+ tmp = 0;
+ }
+
+ /* Update noise energy estimate */
+ for (i = LO_CHAN; i <= HI_CHAN; i++)
+ {
+ /* integrate over time: en[i] = (1-alpha)*en[i] + alpha*e[n] */
+ /* (extract with shift compensation for state 1) */
+
+ Ltmp1 = L_shr(st->Lch_enrg[i], tmp, pOverflow);
+ L_Extract(Ltmp1, &hi1, &lo1, pOverflow);
+
+ Ltmp = Mpy_32_16(hi1, lo1, CNE_SM_FAC, pOverflow);
+
+ L_Extract(st->Lch_noise[i], &hi1, &lo1, pOverflow);
+
+ Ltmp1 = Mpy_32_16(hi1, lo1, ONE_MINUS_CNE_SM_FAC, pOverflow);
+ st->Lch_noise[i] = L_add(Ltmp, Ltmp1, pOverflow);
+
+ /* Limit low level noise */
+ if (st->Lch_noise[i] <= MIN_NOISE_ENRG_0)
+ {
+ st->Lch_noise[i] = MIN_NOISE_ENRG_0;
+ }
+ }
+ }
+
+ return(ivad);
+} /* end of vad2 () */
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad2_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state -- double pointer to type vadState2 -- pointer to memory to
+ be initialized.
+
+ Outputs:
+ state -- points to initalized area in memory.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Allocates state memory and initializes state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad2.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 vad2_init(vadState2 **state)
+{
+ vadState2* s;
+
+ if (state == (vadState2 **) NULL)
+ {
+ return -1;
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (vadState2 *) oscl_malloc(sizeof(vadState2))) == NULL)
+ {
+ return -1;
+ }
+
+ vad2_reset(s);
+
+ *state = s;
+
+ return 0;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad2_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose: Resets state memory to zero
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad2.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 vad2_reset(vadState2 * st)
+{
+ Word16 i;
+ Word16 *ptr;
+
+ if (st == (vadState2 *) NULL)
+ {
+ return -1;
+ }
+ ptr = (Word16 *)st;
+
+ for (i = 0; i < sizeof(vadState2) / 2; i++)
+ {
+ *ptr++ = 0;
+ }
+
+ return 0;
+} /* end of vad2_reset () */
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad2_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ The memory used for state memory is freed
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad2.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad2_exit(vadState2 **state)
+{
+ if (state == NULL || *state == NULL)
+ {
+ return;
+ }
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: weight_a.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "weight_a.h"
+#include "typedef.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Weight_Ai
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ a = LPC coefficients (Word16)
+ fac = Spectral expansion factors (Word16)
+ a_exp = Spectral expanded LPC coefficients (Word16)
+
+ Outputs:
+ a_exp points to the updated spectral expanded LPC coefficients
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates the spectral expansion for the LP coefficients of
+ order M.
+ a_exp[i] = a[i] * fac[i-1] ; i=1..M
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ weight_a.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Weight_Ai (
+ Word16 a[], // (i) : a[M+1] LPC coefficients (M=10)
+ const Word16 fac[], // (i) : Spectral expansion factors.
+ Word16 a_exp[] // (o) : Spectral expanded LPC coefficients
+)
+{
+ Word16 i;
+ a_exp[0] = a[0];
+
+ for (i = 1; i <= M; i++)
+ {
+ a_exp[i] = pv_round (L_mult (a[i], fac[i - 1]));
+ }
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF void Weight_Ai(
+ Word16 a[], /* (i) : a[M+1] LPC coefficients (M=10) */
+ const Word16 fac[], /* (i) : Spectral expansion factors. */
+ Word16 a_exp[] /* (o) : Spectral expanded LPC coefficients */
+)
+{
+ register Word16 i;
+
+ *(a_exp) = *(a);
+
+ for (i = M; i >= 1; i--)
+ {
+ a_exp += 1;
+ a += 1;
+ fac += 1;
+ *(a_exp) = (Word16)((((Word32) * (a)) * *(fac - 1)
+ + 0x00004000L) >> 15);
+ }
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: window_tab.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ None
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ File : window.tab
+ Purpose : Hamming_cos window for LPC analysis.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "window_tab.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+ /*************************************************************************
+ *
+ * Hamming_cos windows for LPC analysis.
+ *
+ *************************************************************************/
+
+ /* window for non-EFR modesm; uses 40 samples lookahead */
+
+ const Word16 window_200_40[L_WINDOW] =
+ {
+ 2621, 2623, 2629, 2638, 2651, 2668, 2689, 2713, 2741, 2772,
+ 2808, 2847, 2890, 2936, 2986, 3040, 3097, 3158, 3223, 3291,
+ 3363, 3438, 3517, 3599, 3685, 3774, 3867, 3963, 4063, 4166,
+ 4272, 4382, 4495, 4611, 4731, 4853, 4979, 5108, 5240, 5376,
+ 5514, 5655, 5800, 5947, 6097, 6250, 6406, 6565, 6726, 6890,
+ 7057, 7227, 7399, 7573, 7750, 7930, 8112, 8296, 8483, 8672,
+ 8863, 9057, 9252, 9450, 9650, 9852, 10055, 10261, 10468, 10677,
+ 10888, 11101, 11315, 11531, 11748, 11967, 12187, 12409, 12632, 12856,
+ 13082, 13308, 13536, 13764, 13994, 14225, 14456, 14688, 14921, 15155,
+ 15389, 15624, 15859, 16095, 16331, 16568, 16805, 17042, 17279, 17516,
+ 17754, 17991, 18228, 18465, 18702, 18939, 19175, 19411, 19647, 19882,
+ 20117, 20350, 20584, 20816, 21048, 21279, 21509, 21738, 21967, 22194,
+ 22420, 22644, 22868, 23090, 23311, 23531, 23749, 23965, 24181, 24394,
+ 24606, 24816, 25024, 25231, 25435, 25638, 25839, 26037, 26234, 26428,
+ 26621, 26811, 26999, 27184, 27368, 27548, 27727, 27903, 28076, 28247,
+ 28415, 28581, 28743, 28903, 29061, 29215, 29367, 29515, 29661, 29804,
+ 29944, 30081, 30214, 30345, 30472, 30597, 30718, 30836, 30950, 31062,
+ 31170, 31274, 31376, 31474, 31568, 31659, 31747, 31831, 31911, 31988,
+ 32062, 32132, 32198, 32261, 32320, 32376, 32428, 32476, 32521, 32561,
+ 32599, 32632, 32662, 32688, 32711, 32729, 32744, 32755, 32763, 32767,
+ 32767, 32741, 32665, 32537, 32359, 32129, 31850, 31521, 31143, 30716,
+ 30242, 29720, 29151, 28538, 27879, 27177, 26433, 25647, 24821, 23957,
+ 23055, 22117, 21145, 20139, 19102, 18036, 16941, 15820, 14674, 13505,
+ 12315, 11106, 9879, 8637, 7381, 6114, 4838, 3554, 2264, 971
+ };
+
+
+ /* window for EFR, first two subframes, no lookahead */
+
+ const Word16 window_160_80[L_WINDOW] =
+ {
+ 2621, 2624, 2633, 2648, 2668, 2695, 2727, 2765, 2809, 2859,
+ 2915, 2976, 3043, 3116, 3194, 3279, 3368, 3464, 3565, 3671,
+ 3783, 3900, 4023, 4151, 4285, 4423, 4567, 4716, 4870, 5029,
+ 5193, 5362, 5535, 5714, 5897, 6084, 6277, 6473, 6674, 6880,
+ 7089, 7303, 7521, 7742, 7968, 8197, 8430, 8667, 8907, 9151,
+ 9398, 9648, 9902, 10158, 10417, 10680, 10945, 11212, 11482, 11755,
+ 12030, 12307, 12586, 12867, 13150, 13435, 13722, 14010, 14299, 14590,
+ 14882, 15175, 15469, 15764, 16060, 16356, 16653, 16950, 17248, 17546,
+ 17844, 18141, 18439, 18736, 19033, 19330, 19625, 19920, 20214, 20507,
+ 20799, 21090, 21380, 21668, 21954, 22239, 22522, 22803, 23083, 23360,
+ 23635, 23907, 24177, 24445, 24710, 24972, 25231, 25488, 25741, 25991,
+ 26238, 26482, 26722, 26959, 27192, 27422, 27647, 27869, 28087, 28300,
+ 28510, 28715, 28916, 29113, 29305, 29493, 29676, 29854, 30028, 30197,
+ 30361, 30519, 30673, 30822, 30966, 31105, 31238, 31366, 31489, 31606,
+ 31718, 31825, 31926, 32021, 32111, 32195, 32273, 32346, 32413, 32475,
+ 32530, 32580, 32624, 32662, 32695, 32721, 32742, 32756, 32765, 32767,
+ 32767, 32756, 32720, 32661, 32578, 32471, 32341, 32188, 32012, 31813,
+ 31592, 31349, 31084, 30798, 30492, 30165, 29818, 29453, 29068, 28666,
+ 28247, 27810, 27358, 26891, 26408, 25913, 25404, 24883, 24350, 23807,
+ 23255, 22693, 22124, 21548, 20965, 20378, 19786, 19191, 18593, 17994,
+ 17395, 16796, 16199, 15604, 15012, 14424, 13842, 13265, 12696, 12135,
+ 11582, 11039, 10507, 9986, 9477, 8981, 8499, 8031, 7579, 7143,
+ 6723, 6321, 5937, 5571, 5225, 4898, 4591, 4305, 4041, 3798,
+ 3577, 3378, 3202, 3048, 2918, 2812, 2729, 2669, 2633, 2621
+ };
+
+ /* window for EFR, last two subframes, no lookahead */
+
+ const Word16 window_232_8[L_WINDOW] =
+ {
+ 2621, 2623, 2627, 2634, 2644, 2656, 2671, 2689, 2710, 2734,
+ 2760, 2789, 2821, 2855, 2893, 2933, 2975, 3021, 3069, 3120,
+ 3173, 3229, 3288, 3350, 3414, 3481, 3550, 3622, 3697, 3774,
+ 3853, 3936, 4021, 4108, 4198, 4290, 4385, 4482, 4582, 4684,
+ 4788, 4895, 5004, 5116, 5230, 5346, 5464, 5585, 5708, 5833,
+ 5960, 6090, 6221, 6355, 6491, 6629, 6769, 6910, 7054, 7200,
+ 7348, 7498, 7649, 7803, 7958, 8115, 8274, 8434, 8597, 8761,
+ 8926, 9093, 9262, 9432, 9604, 9778, 9952, 10129, 10306, 10485,
+ 10665, 10847, 11030, 11214, 11399, 11586, 11773, 11962, 12152, 12342,
+ 12534, 12727, 12920, 13115, 13310, 13506, 13703, 13901, 14099, 14298,
+ 14497, 14698, 14898, 15100, 15301, 15504, 15706, 15909, 16112, 16316,
+ 16520, 16724, 16928, 17132, 17337, 17541, 17746, 17950, 18155, 18359,
+ 18564, 18768, 18972, 19175, 19379, 19582, 19785, 19987, 20189, 20390,
+ 20591, 20792, 20992, 21191, 21390, 21588, 21785, 21981, 22177, 22372,
+ 22566, 22759, 22951, 23143, 23333, 23522, 23710, 23897, 24083, 24268,
+ 24451, 24633, 24814, 24994, 25172, 25349, 25525, 25699, 25871, 26042,
+ 26212, 26380, 26546, 26711, 26874, 27035, 27195, 27353, 27509, 27664,
+ 27816, 27967, 28115, 28262, 28407, 28550, 28691, 28830, 28967, 29102,
+ 29234, 29365, 29493, 29619, 29743, 29865, 29985, 30102, 30217, 30330,
+ 30440, 30548, 30654, 30757, 30858, 30956, 31052, 31146, 31237, 31326,
+ 31412, 31495, 31576, 31655, 31730, 31804, 31874, 31942, 32008, 32071,
+ 32131, 32188, 32243, 32295, 32345, 32392, 32436, 32477, 32516, 32552,
+ 32585, 32615, 32643, 32668, 32690, 32709, 32726, 32740, 32751, 32759,
+ 32765, 32767, 32767, 32097, 30112, 26895, 22576, 17333, 11380, 4962
+ };
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; Define all local variables
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Function body here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Return nothing or data or data pointer
+----------------------------------------------------------------------------*/
+
--- /dev/null
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ src/decoder_gsm_amr.cpp \
+ src/a_refl.cpp \
+ src/agc.cpp \
+ src/amrdecode.cpp \
+ src/b_cn_cod.cpp \
+ src/bgnscd.cpp \
+ src/c_g_aver.cpp \
+ src/d1035pf.cpp \
+ src/d2_11pf.cpp \
+ src/d2_9pf.cpp \
+ src/d3_14pf.cpp \
+ src/d4_17pf.cpp \
+ src/d8_31pf.cpp \
+ src/d_gain_c.cpp \
+ src/d_gain_p.cpp \
+ src/d_plsf.cpp \
+ src/d_plsf_3.cpp \
+ src/d_plsf_5.cpp \
+ src/dec_amr.cpp \
+ src/dec_gain.cpp \
+ src/dec_input_format_tab.cpp \
+ src/dec_lag3.cpp \
+ src/dec_lag6.cpp \
+ src/dtx_dec.cpp \
+ src/ec_gains.cpp \
+ src/ex_ctrl.cpp \
+ src/if2_to_ets.cpp \
+ src/int_lsf.cpp \
+ src/lsp_avg.cpp \
+ src/ph_disp.cpp \
+ src/post_pro.cpp \
+ src/preemph.cpp \
+ src/pstfilt.cpp \
+ src/qgain475_tab.cpp \
+ src/sp_dec.cpp \
+ src/wmf_to_ets.cpp
+
+
+LOCAL_MODULE := libpvdecoder_gsmamr
+
+LOCAL_CFLAGS := $(PV_CFLAGS)
+
+LOCAL_ARM_MODE := arm
+
+LOCAL_STATIC_LIBRARIES :=
+
+LOCAL_SHARED_LIBRARIES :=
+
+LOCAL_C_INCLUDES := \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/amr_nb/dec/src \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/amr_nb/dec/include \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/amr_nb/common/include \
+ $(PV_INCLUDES)
+
+LOCAL_COPY_HEADERS_TO := $(PV_COPY_HEADERS_TO)
+
+LOCAL_COPY_HEADERS := \
+ include/decoder_gsm_amr.h \
+ include/pvamrnbdecoder_api.h
+
+include $(BUILD_STATIC_LIBRARY)
--- /dev/null
+# Get the current local path as the first operation
+LOCAL_PATH := $(call get_makefile_dir)
+
+# Clear out the variables used in the local makefiles
+include $(MK)/clear.mk
+
+TARGET := pvdecoder_gsmamr
+
+
+OPTIMIZE_FOR_PERFORMANCE_OVER_SIZE := true
+
+XINCDIRS := ../../../common/include
+
+SRCDIR := ../../src
+INCSRCDIR := ../../include
+
+SRCS := decoder_gsm_amr.cpp \
+ a_refl.cpp \
+ agc.cpp \
+ amrdecode.cpp \
+ b_cn_cod.cpp \
+ bgnscd.cpp \
+ c_g_aver.cpp \
+ d1035pf.cpp \
+ d2_11pf.cpp \
+ d2_9pf.cpp \
+ d3_14pf.cpp \
+ d4_17pf.cpp \
+ d8_31pf.cpp \
+ d_gain_c.cpp \
+ d_gain_p.cpp \
+ d_plsf.cpp \
+ d_plsf_3.cpp \
+ d_plsf_5.cpp \
+ dec_amr.cpp \
+ dec_gain.cpp \
+ dec_input_format_tab.cpp \
+ dec_lag3.cpp \
+ dec_lag6.cpp \
+ dtx_dec.cpp \
+ ec_gains.cpp \
+ ex_ctrl.cpp \
+ if2_to_ets.cpp \
+ int_lsf.cpp \
+ lsp_avg.cpp \
+ ph_disp.cpp \
+ post_pro.cpp \
+ preemph.cpp \
+ pstfilt.cpp \
+ qgain475_tab.cpp \
+ sp_dec.cpp \
+ wmf_to_ets.cpp
+
+HDRS := decoder_gsm_amr.h pvamrnbdecoder_api.h
+
+include $(MK)/library.mk
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+//////////////////////////////////////////////////////////////////////////////////
+// //
+// File: decoder_amr_nb.h //
+// //
+//////////////////////////////////////////////////////////////////////////////////
+
+#ifndef _DECODER_AMR_NB_H
+#define _DECODER_AMR_NB_H
+
+#include "oscl_base.h"
+#include "pvgsmamrdecoderinterface.h"
+
+// CDecoder_AMR_WB
+class CDecoder_AMRInterface;
+class CDecoder_AMR_NB: public CDecoder_AMRInterface
+{
+ public:
+ OSCL_IMPORT_REF void ConstructL();
+ OSCL_IMPORT_REF static CDecoder_AMR_NB *NewL();
+ OSCL_IMPORT_REF virtual ~CDecoder_AMR_NB();
+
+ OSCL_IMPORT_REF virtual int32 StartL(tPVAmrDecoderExternal * pExt,
+ bool aAllocateInputBuffer = false,
+ bool aAllocateOutputBuffer = false);
+
+ OSCL_IMPORT_REF virtual int32 ExecuteL(tPVAmrDecoderExternal * pExt);
+
+ OSCL_IMPORT_REF virtual int32 ResetDecoderL();
+ OSCL_IMPORT_REF virtual void StopL();
+ OSCL_IMPORT_REF virtual void TerminateDecoderL();
+
+ private:
+ void* iDecState;
+
+ int16* iInputBuf;
+ int16* iOutputBuf;
+
+
+};
+
+
+#endif
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Name: pvamrnbdecoder_api.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Main header file for the Packet Video AMR Narrow Band decoder library. The
+ constants, structures, and functions defined within this file, along with
+ a basic data types header file, is all that is needed to use and communicate
+ with the library. The internal data structures within the library are
+ purposely hidden.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef _PVAMRNBDECODER_API_H
+#define _PVAMRNBDECODER_API_H
+
+#include "oscl_base.h" /* Basic data types used within the lib */
+#include "pvgsmamrdecoderinterface.h"
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define MAX_NUM_FRAMES_PER_PACKET 20 /* Max number of frames per packet */
+
+#define MAX_NUM_PACKED_INPUT_BYTES 32 /* Max number of packed input bytes */
+
+#define L_FRAME 160
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* PVMP4AUDIODECODER_API_H */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: a_refl.cpp
+ Functions: a_refl
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "a_refl.h"
+#include "typedef.h"
+#include "cnst.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS [optional]
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES [optional]
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: AMREncode
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ a[] = pointer to directform coefficients of type Word16
+ refl[] = pointer to reflection coefficients of type Word16
+
+ Outputs:
+ pOverflow = 1 if overflow exists in the math operations else zero.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ File : a_refl.c
+ Purpose : Convert from direct form coefficients to
+ reflection coefficients
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] a_refl.c , 3GPP TS 26.101 version 4.1.0 Release 4, June 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+void A_Refl(
+ Word16 a[], // i : Directform coefficients
+ Word16 refl[] // o : Reflection coefficients
+)
+{
+ // local variables
+ Word16 i,j;
+ Word16 aState[M];
+ Word16 bState[M];
+ Word16 normShift;
+ Word16 normProd;
+ Word32 L_acc;
+ Word16 scale;
+ Word32 L_temp;
+ Word16 temp;
+ Word16 mult;
+
+ // initialize states
+ for (i = 0; i < M; i++)
+ {
+ aState[i] = a[i];
+ }
+
+ // backward Levinson recursion
+ for (i = M-1; i >= 0; i--)
+ {
+ if (sub(abs_s(aState[i]), 4096) >= 0)
+ {
+ goto ExitRefl;
+ }
+
+ refl[i] = shl(aState[i], 3);
+
+ L_temp = L_mult(refl[i], refl[i]);
+ L_acc = L_sub(MAX_32, L_temp);
+
+ normShift = norm_l(L_acc);
+ scale = sub(15, normShift);
+
+ L_acc = L_shl(L_acc, normShift);
+ normProd = pv_round(L_acc);
+
+ mult = div_s(16384, normProd);
+
+ for (j = 0; j < i; j++)
+ {
+ L_acc = L_deposit_h(aState[j]);
+ L_acc = L_msu(L_acc, refl[i], aState[i-j-1]);
+
+ temp = pv_round(L_acc);
+ L_temp = L_mult(mult, temp);
+ L_temp = L_shr_r(L_temp, scale);
+
+ if (L_sub(L_abs(L_temp), 32767) > 0)
+ {
+ goto ExitRefl;
+ }
+
+ bState[j] = extract_l(L_temp);
+ }
+
+ for (j = 0; j < i; j++)
+ {
+ aState[j] = bState[j];
+ }
+ }
+ return;
+
+ExitRefl:
+ for (i = 0; i < M; i++)
+ {
+ refl[i] = 0;
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void A_Refl(
+ Word16 a[], /* i : Directform coefficients */
+ Word16 refl[], /* o : Reflection coefficients */
+ Flag *pOverflow
+)
+{
+ /* local variables */
+ Word16 i;
+ Word16 j;
+ Word16 aState[M];
+ Word16 bState[M];
+ Word16 normShift;
+ Word16 normProd;
+ Word32 L_acc;
+ Word16 scale;
+ Word32 L_temp;
+ Word16 temp;
+ Word16 mult;
+
+ /* initialize states */
+ for (i = 0; i < M; i++)
+ {
+ aState[i] = a[i];
+ }
+
+ /* backward Levinson recursion */
+ for (i = M - 1; i >= 0; i--)
+ {
+ if (abs_s(aState[i]) >= 4096)
+ {
+ for (i = 0; i < M; i++)
+ {
+ refl[i] = 0;
+ }
+ break;
+ }
+
+ refl[i] = shl(aState[i], 3, pOverflow);
+
+ L_temp = L_mult(refl[i], refl[i], pOverflow);
+ L_acc = L_sub(MAX_32, L_temp, pOverflow);
+
+ normShift = norm_l(L_acc);
+ scale = 15 - normShift;
+
+ L_acc = L_shl(L_acc, normShift, pOverflow);
+ normProd = pv_round(L_acc, pOverflow);
+
+ mult = div_s(16384, normProd);
+
+ for (j = 0; j < i; j++)
+ {
+ L_acc = ((Word32)aState[j] << 16);
+ L_acc = L_msu(L_acc, refl[i], aState[i-j-1], pOverflow);
+
+ temp = pv_round(L_acc, pOverflow);
+ L_temp = L_mult(mult, temp, pOverflow);
+ L_temp = L_shr_r(L_temp, scale, pOverflow);
+
+
+ Word32 L_tmp_abs = L_temp - (L_temp < 0);
+ L_tmp_abs = L_tmp_abs ^(L_tmp_abs >> 31);
+
+ if (L_tmp_abs > 32767)
+ {
+ for (i = 0; i < M; i++)
+ {
+ refl[i] = 0;
+ }
+ break;
+ }
+
+ bState[j] = (Word16)(L_temp);
+ }
+
+ for (j = 0; j < i; j++)
+ {
+ aState[j] = bState[j];
+ }
+ }
+ return;
+}
+
+
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: a_refl.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : a_refl.h
+ Purpose : Convert from direct form coefficients to
+ reflection coefficients
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef A_REFL_H
+#define A_REFL_H
+#define a_refl_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ /*
+ * FUNCTION: A_Refl()
+ * PURPOSE: Convert from direct form coefficients to reflection coefficients
+ * DESCRIPTION:
+ * Directform coeffs in Q12 are converted to
+ * reflection coefficients Q15
+ */
+ void A_Refl(
+ Word16 a[], /* i : Directform coefficients */
+ Word16 refl[], /* o : Reflection coefficients */
+ Flag *pOverflow
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _A_REFL_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: agc.cpp
+ Funtions: energy_old
+ energy_new
+ agc_init
+ agc_reset
+ agc_exit
+ agc
+ agc2
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This set of modules scale the excitation level and output of the speech
+ signals.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "agc.h"
+#include "cnst.h"
+#include "inv_sqrt.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: energy_old
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ in = input signal (Word16)
+ l_trm = input signal length (Word16)
+ pOverflow = address of overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the energy computation saturates
+
+ Returns:
+ s = return energy of signal (Word32)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Returns the energy of the signal.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ agc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static Word32 energy_old( // o : return energy of signal
+ Word16 in[], // i : input signal (length l_trm)
+ Word16 l_trm // i : signal length
+)
+{
+ Word32 s;
+ Word16 i, temp;
+
+ temp = shr (in[0], 2);
+ s = L_mult (temp, temp);
+
+ for (i = 1; i < l_trm; i++)
+ {
+ temp = shr (in[i], 2);
+ s = L_mac (s, temp, temp);
+ }
+
+ return s;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word32 energy_old( /* o : return energy of signal */
+ Word16 in[], /* i : input signal (length l_trm) */
+ Word16 l_trm, /* i : signal length */
+ Flag *pOverflow /* overflow: flag to indicate overflow */
+)
+
+{
+ Word32 s = 0;
+ Word16 i;
+ Word16 temp;
+
+ for (i = 0; i < l_trm; i++)
+ {
+ temp = in[i] >> 2;
+ s = L_mac(s, temp, temp, pOverflow);
+ }
+
+ return(s);
+}
+
+/*----------------------------------------------------------------------------*/
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: energy_old__Wrapper
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ in = input signal (Word16)
+ l_trm = input signal length (Word16)
+ pOverflow = address of overflow (Flag)
+ Outputs:
+ pOverflow -> 1 if the energy computation saturates
+
+ Returns:
+ s = return energy of signal (Word32)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function provides external access to the static function energy_old.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ CALL energy_old ( in = in
+ l_trm = l_trm
+ pOverflow = pOverflow )
+ MODIFYING(nothing)
+ RETURNING(energy_old_value = s)
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word32 energy_old_Wrapper(Word16 in[], Word16 l_trm, Flag *pOverflow)
+{
+ Word32 energy_old_value;
+
+ /*----------------------------------------------------------------------------
+ CALL energy_old ( in = in
+ l_trm = l_trm
+ pOverflow = pOverflow )
+
+ MODIFYING(nothing)
+ RETURNING(energy_old_value = s)
+ ----------------------------------------------------------------------------*/
+ energy_old_value = energy_old(in, l_trm, pOverflow);
+ return(energy_old_value);
+}
+/*--------------------------------------------------------------------------*/
+
+/*
+-----------------------------------------------------------------------------
+ FUNCTION NAME: energy_new
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ in = input signal
+ l_trm = input signal length
+ pOverflow = address of overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the energy computation saturates
+
+ Returns:
+ s = return energy of signal
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Returns the energy of the signal.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ agc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static Word32 energy_new( // o : return energy of signal
+ Word16 in[], // i : input signal (length l_trm)
+ Word16 l_trm ) // i : signal length
+
+{
+ Word32 s;
+ Word16 i;
+ Flag ov_save;
+
+ ov_save = Overflow; //save overflow flag in case energy_old
+ // must be called
+ s = L_mult(in[0], in[0]);
+ for (i = 1; i < l_trm; i++)
+ {
+ s = L_mac(s, in[i], in[i]);
+ }
+
+ // check for overflow
+ if (L_sub (s, MAX_32) == 0L)
+ {
+ Overflow = ov_save; // restore overflow flag
+ s = energy_old (in, l_trm); // function result
+ }
+ else
+ {
+ s = L_shr(s, 4);
+ }
+
+ return(s);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word32 energy_new( /* o : return energy of signal */
+ Word16 in[], /* i : input signal (length l_trm) */
+ Word16 l_trm, /* i : signal length */
+ Flag *pOverflow /* i : overflow flag */
+)
+
+{
+ Word32 s = 0;
+ Word16 i;
+ Flag ov_save;
+
+ ov_save = *(pOverflow); /* save overflow flag in case energy_old */
+ /* must be called */
+
+
+ for (i = 0; i < l_trm; i++)
+ {
+ s = L_mac(s, in[i], in[i], pOverflow);
+ }
+
+ /* check for overflow */
+ if (s != MAX_32)
+ {
+ /* s is a sum of squares, so it won't be negative */
+ s = s >> 4;
+ }
+ else
+ {
+ *(pOverflow) = ov_save; /* restore overflow flag */
+ s = energy_old(in, l_trm, pOverflow); /* function result */
+ }
+
+ return (s);
+}
+
+/*--------------------------------------------------------------------------*/
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: energy_new__Wrapper
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ in = input signal (Word16)
+ l_trm = input signal length (Word16)
+ overflow = address of overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the energy computation saturates
+
+ Returns:
+ s = return energy of signal (Word32)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function provides external access to the static function energy_new.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ CALL energy_new ( in = in
+ l_trm = l_trm
+ pOverflow = pOverflow )
+
+ MODIFYING(nothing)
+
+ RETURNING(energy_new_value = s)
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word32 energy_new_Wrapper(Word16 in[], Word16 l_trm, Flag *pOverflow)
+{
+ Word32 energy_new_value;
+
+ /*----------------------------------------------------------------------------
+ CALL energy_new ( in = in
+ l_trm = l_trm
+ pOverflow = pOverflow )
+
+ MODIFYING(nothing)
+ RETURNING(energy_new_value = s)
+
+ ----------------------------------------------------------------------------*/
+ energy_new_value = energy_new(in, l_trm, pOverflow);
+
+ return(energy_new_value);
+
+}
+
+/*--------------------------------------------------------------------------*/
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: agc_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a structure of type agcState
+
+ Outputs:
+ Structure pointed to by state is initialized to zeros
+
+ Returns:
+ Returns 0 if memory was successfully initialized,
+ otherwise returns -1.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Reset of agc (i.e. set state memory to 1.0).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ agc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int agc_reset (agcState *state)
+{
+ if (state == (agcState *) NULL)
+ {
+ fprintf(stderr, "agc_reset: invalid parameter\n");
+ return -1;
+ }
+
+ state->past_gain = 4096; // initial value of past_gain = 1.0
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 agc_reset(agcState *state)
+{
+ if (state == (agcState *) NULL)
+ {
+ /* fprintf(stderr, "agc_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ state->past_gain = 4096; /* initial value of past_gain = 1.0 */
+
+ return(0);
+}
+
+/*--------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: agc
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to agc state
+ sig_in = pointer to a buffer containing the postfilter input signal
+ sig_out = pointer to a buffer containing the postfilter output signal
+ agc_fac = AGC factor
+ l_trm = subframe size
+ pOverflow = pointer to the overflow flag
+
+ Outputs:
+ st->past_gain = gain
+ buffer pointed to by sig_out contains the new postfilter output signal
+ pOverflow -> 1 if the agc computation saturates
+
+ Returns:
+ return = 0
+
+ Global Variables Used:
+ none.
+
+ Local Variables Needed:
+ none.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Scales the postfilter output on a subframe basis using:
+
+ sig_out[n] = sig_out[n] * gain[n]
+ gain[n] = agc_fac * gain[n-1] + (1 - agc_fac) g_in/g_out
+
+ where: gain[n] = gain at the nth sample given by
+ g_in/g_out = square root of the ratio of energy at
+ the input and output of the postfilter.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ agc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int agc (
+ agcState *st, // i/o : agc state
+ Word16 *sig_in, // i : postfilter input signal (l_trm)
+ Word16 *sig_out, // i/o : postfilter output signal (l_trm)
+ Word16 agc_fac, // i : AGC factor
+ Word16 l_trm // i : subframe size
+)
+{
+ Word16 i, exp;
+ Word16 gain_in, gain_out, g0, gain;
+ Word32 s;
+
+ // calculate gain_out with exponent
+ s = energy_new(sig_out, l_trm); // function result
+
+ if (s == 0)
+ {
+ st->past_gain = 0;
+ return 0;
+ }
+ exp = sub (norm_l (s), 1);
+ gain_out = pv_round (L_shl (s, exp));
+
+ // calculate gain_in with exponent
+ s = energy_new(sig_in, l_trm); // function result
+
+ if (s == 0)
+ {
+ g0 = 0;
+ }
+ else
+ {
+ i = norm_l (s);
+ gain_in = pv_round (L_shl (s, i));
+ exp = sub (exp, i);
+
+ *---------------------------------------------------*
+ * g0 = (1-agc_fac) * sqrt(gain_in/gain_out); *
+ *---------------------------------------------------*
+
+ s = L_deposit_l (div_s (gain_out, gain_in));
+ s = L_shl (s, 7); // s = gain_out / gain_in
+ s = L_shr (s, exp); // add exponent
+
+ s = Inv_sqrt (s); // function result
+ i = pv_round (L_shl (s, 9));
+
+ // g0 = i * (1-agc_fac)
+ g0 = mult (i, sub (32767, agc_fac));
+ }
+
+ // compute gain[n] = agc_fac * gain[n-1]
+ + (1-agc_fac) * sqrt(gain_in/gain_out)
+ // sig_out[n] = gain[n] * sig_out[n]
+
+ gain = st->past_gain;
+
+ for (i = 0; i < l_trm; i++)
+ {
+ gain = mult (gain, agc_fac);
+ gain = add (gain, g0);
+ sig_out[i] = extract_h (L_shl (L_mult (sig_out[i], gain), 3));
+ }
+
+ st->past_gain = gain;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void agc(
+ agcState *st, /* i/o : agc state */
+ Word16 *sig_in, /* i : postfilter input signal (l_trm) */
+ Word16 *sig_out, /* i/o : postfilter output signal (l_trm) */
+ Word16 agc_fac, /* i : AGC factor */
+ Word16 l_trm, /* i : subframe size */
+ Flag *pOverflow /* i : overflow Flag */
+
+)
+
+{
+ Word16 i;
+ Word16 exp;
+ Word16 gain_in;
+ Word16 gain_out;
+ Word16 g0;
+ Word16 gain;
+ Word32 s;
+ Word32 L_temp;
+ Word16 temp;
+
+ Word16 *p_sig_out;
+
+ /* calculate gain_out with exponent */
+ s = energy_new(sig_out, l_trm, pOverflow); /* function result */
+
+ if (s == 0)
+ {
+ st->past_gain = 0;
+ return;
+ }
+ exp = norm_l(s) - 1;
+
+ L_temp = L_shl(s, exp, pOverflow);
+ gain_out = pv_round(L_temp, pOverflow);
+
+ /* calculate gain_in with exponent */
+ s = energy_new(sig_in, l_trm, pOverflow); /* function result */
+
+ if (s == 0)
+ {
+ g0 = 0;
+ }
+ else
+ {
+ i = norm_l(s);
+
+ /* L_temp = L_shl(s, i, pOverflow); */
+ L_temp = s << i;
+
+ gain_in = pv_round(L_temp, pOverflow);
+
+ exp -= i;
+
+ /*---------------------------------------------------*
+ * g0 = (1-agc_fac) * sqrt(gain_in/gain_out); *
+ *---------------------------------------------------*/
+
+ /* s = gain_out / gain_in */
+ temp = div_s(gain_out, gain_in);
+
+ /* s = L_deposit_l (temp); */
+ s = (Word32) temp;
+ s = s << 7;
+ s = L_shr(s, exp, pOverflow); /* add exponent */
+
+ s = Inv_sqrt(s, pOverflow); /* function result */
+ L_temp = s << 9;
+
+ i = (Word16)((L_temp + (Word32) 0x00008000L) >> 16);
+
+ /* g0 = i * (1-agc_fac) */
+ temp = 32767 - agc_fac;
+
+ g0 = (Word16)(((Word32) i * temp) >> 15);
+
+ }
+
+ /* compute gain[n] = agc_fac * gain[n-1]
+ + (1-agc_fac) * sqrt(gain_in/gain_out) */
+ /* sig_out[n] = gain[n] * sig_out[n] */
+
+ gain = st->past_gain;
+ p_sig_out = sig_out;
+
+ for (i = 0; i < l_trm; i++)
+ {
+ /* gain = mult (gain, agc_fac, pOverflow); */
+ gain = (Word16)(((Word32) gain * agc_fac) >> 15);
+
+ /* gain = add (gain, g0, pOverflow); */
+ gain += g0;
+
+ /* L_temp = L_mult (sig_out[i], gain, pOverflow); */
+ L_temp = ((Word32)(*(p_sig_out)) * gain) << 1;
+
+ *(p_sig_out++) = (Word16)(L_temp >> 13);
+ }
+
+ st->past_gain = gain;
+
+ return;
+}
+
+/*--------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: agc2
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ sig_in = pointer to a buffer containing the postfilter input signal
+ sig_out = pointer to a buffer containing the postfilter output signal
+ l_trm = subframe size
+ pOverflow = pointer to overflow flag
+
+ Outputs:
+ sig_out points to a buffer containing the new scaled output signal.
+ pOverflow -> 1 if the agc computation saturates
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Scales the excitation on a subframe basis.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ agc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void agc2 (
+ Word16 *sig_in, // i : postfilter input signal
+ Word16 *sig_out, // i/o : postfilter output signal
+ Word16 l_trm // i : subframe size
+)
+{
+ Word16 i, exp;
+ Word16 gain_in, gain_out, g0;
+ Word32 s;
+
+ // calculate gain_out with exponent
+ s = energy_new(sig_out, l_trm); // function result
+
+ if (s == 0)
+ {
+ return;
+ }
+ exp = sub (norm_l (s), 1);
+ gain_out = pv_round (L_shl (s, exp));
+
+ // calculate gain_in with exponent
+ s = energy_new(sig_in, l_trm); // function result
+
+ if (s == 0)
+ {
+ g0 = 0;
+ }
+ else
+ {
+ i = norm_l (s);
+ gain_in = pv_round (L_shl (s, i));
+ exp = sub (exp, i);
+
+ *---------------------------------------------------*
+ * g0 = sqrt(gain_in/gain_out); *
+ *---------------------------------------------------*
+
+ s = L_deposit_l (div_s (gain_out, gain_in));
+ s = L_shl (s, 7); // s = gain_out / gain_in
+ s = L_shr (s, exp); // add exponent
+
+ s = Inv_sqrt (s); // function result
+ g0 = pv_round (L_shl (s, 9));
+ }
+
+ // sig_out(n) = gain(n) sig_out(n)
+
+ for (i = 0; i < l_trm; i++)
+ {
+ sig_out[i] = extract_h (L_shl (L_mult (sig_out[i], g0), 3));
+ }
+
+ return;
+}
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void agc2(
+ Word16 *sig_in, /* i : postfilter input signal */
+ Word16 *sig_out, /* i/o : postfilter output signal */
+ Word16 l_trm, /* i : subframe size */
+ Flag *pOverflow /* i : overflow flag */
+)
+
+{
+ Word16 i;
+ Word16 exp;
+ Word16 gain_in;
+ Word16 gain_out;
+ Word16 g0;
+ Word32 s;
+ Word32 L_temp;
+ Word16 temp;
+
+ /* calculate gain_out with exponent */
+ s = energy_new(sig_out, l_trm, pOverflow); /* function result */
+
+ if (s == 0)
+ {
+ return;
+ }
+ exp = norm_l(s) - 1;
+ L_temp = L_shl(s, exp, pOverflow);
+ gain_out = pv_round(L_temp, pOverflow);
+
+ /* calculate gain_in with exponent */
+ s = energy_new(sig_in, l_trm, pOverflow); /* function result */
+
+ if (s == 0)
+ {
+ g0 = 0;
+ }
+ else
+ {
+ i = norm_l(s);
+ L_temp = L_shl(s, i, pOverflow);
+ gain_in = pv_round(L_temp, pOverflow);
+ exp -= i;
+
+ /*---------------------------------------------------*
+ * g0 = sqrt(gain_in/gain_out); *
+ *---------------------------------------------------*/
+
+ /* s = gain_out / gain_in */
+ temp = div_s(gain_out, gain_in);
+
+ /* s = L_deposit_l (temp); */
+ s = (Word32)temp;
+
+ if (s > (Word32) 0x00FFFFFFL)
+ {
+ s = MAX_32;
+ }
+ else if (s < (Word32) 0xFF000000L)
+ {
+ s = MIN_32;
+ }
+ else
+ {
+ s = s << 7;
+ }
+ s = L_shr(s, exp, pOverflow); /* add exponent */
+
+ s = Inv_sqrt(s, pOverflow); /* function result */
+
+ if (s > (Word32) 0x003FFFFFL)
+ {
+ L_temp = MAX_32;
+ }
+ else if (s < (Word32) 0xFFC00000L)
+ {
+ L_temp = MIN_32;
+ }
+ else
+ {
+ L_temp = s << 9;
+ }
+ g0 = pv_round(L_temp, pOverflow);
+ }
+
+ /* sig_out(n) = gain(n) sig_out(n) */
+
+ for (i = l_trm - 1; i >= 0; i--)
+ {
+ L_temp = L_mult(sig_out[i], g0, pOverflow);
+ if (L_temp > (Word32) 0x0FFFFFFFL)
+ {
+ sig_out[i] = MAX_16;
+ }
+ else if (L_temp < (Word32) 0xF0000000L)
+ {
+ sig_out[i] = MIN_16;
+ }
+ else
+ {
+ sig_out[i] = (Word16)(L_temp >> 13);
+ }
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: agc.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : agc.h
+ Purpose : Scales the postfilter output on a subframe basis
+ : by automatic control of the subframe gain.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _AGC_H_
+#define _AGC_H_
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 past_gain;
+ } agcState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ /*----------------------------------------------------------------------------
+ ;
+ ; Function : agc_reset
+ ; Purpose : Reset of agc (i.e. set state memory to 1.0)
+ ; Returns : 0 on success
+ ;
+ ----------------------------------------------------------------------------*/
+ Word16 agc_reset(agcState *st);
+
+
+ /*----------------------------------------------------------------------------
+ ;
+ ; Function : agc
+ ; Purpose : Scales the postfilter output on a subframe basis
+ ; Description : sig_out[n] = sig_out[n] * gain[n];
+ ; where gain[n] is the gain at the nth sample given by
+ ; gain[n] = agc_fac * gain[n-1] + (1 - agc_fac) g_in/g_out
+ ; g_in/g_out is the square root of the ratio of energy at
+ ; the input and output of the postfilter.
+ ;
+ ----------------------------------------------------------------------------*/
+ void agc(
+ agcState *st, /* i/o : agc state */
+ Word16 *sig_in, /* i : postfilter input signal, (l_trm) */
+ Word16 *sig_out, /* i/o : postfilter output signal, (l_trm) */
+ Word16 agc_fac, /* i : AGC factor */
+ Word16 l_trm, /* i : subframe size */
+ Flag *pOverflow /* i : overflow flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ;
+ ; Function: agc2
+ ; Purpose: Scales the excitation on a subframe basis
+ ;
+ ----------------------------------------------------------------------------*/
+ void agc2(
+ Word16 *sig_in, /* i : postfilter input signal */
+ Word16 *sig_out, /* i/o : postfilter output signal */
+ Word16 l_trm, /* i : subframe size */
+ Flag *pOverflow /* i : overflow flag */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AGC_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+ Filename: amrdecode.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "amrdecode.h"
+#include "cnst.h"
+#include "typedef.h"
+#include "frame.h"
+#include "sp_dec.h"
+#include "wmf_to_ets.h"
+#include "if2_to_ets.h"
+#include "frame_type_3gpp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: AMRDecode
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state_data = pointer to a structure (type void)
+
+ frame_type = 3GPP frame type (enum Frame_Type_3GPP)
+
+ speech_bits_ptr = pointer to the beginning of the raw encoded speech bits
+ for the current frame to be decoded (unsigned char)
+
+ raw_pcm_buffer = pointer to the output pcm outputs array (Word16)
+
+ input_format = input format used; valid values are AMR_WMF, AMR_IF2,
+ and AMR_ETS (Word16)
+
+ Outputs:
+ raw_pcm_buffer contains the newly decoded linear PCM speech samples
+ state_data->prev_mode contains the new mode
+
+ Returns:
+ byte_offset = address offset of the next frame to be processed or
+ error condition flag (-1) (int)
+
+ Global Variables Used:
+ WmfDecBytesPerFrame = table containing the number of core AMR data bytes
+ used by each codec mode for WMF input format (const
+ int)
+
+ If2DecBytesPerFrame = table containing the number of core AMR data bytes
+ used by each codec mode for IF2 input format (const
+ int)
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function is the top level entry function to the GSM AMR Decoder library.
+
+ First, it checks the input format type (input_format) to determine the type
+ of de-formattting that needs to be done. If input_format is AMR_WMF, the input
+ data is in WMF (aka, non-IF2) format and the function wmf_to_ets will be
+ called to convert to the ETS format (1 bit/word, where 1 word = 16 bits),
+ and byte_offset will be updated according to the contents of WmfDecBytesPerFrame
+ table.
+
+ If input_format is AMR_IF2, the input data is in IF2 format [1] and the
+ function if2_to_ets will be called to convert to the ETS format, and
+ byte_offset will be updated according to the contents of If2DecBytesPerFrame
+ table.
+
+ The codec mode and receive frame type is initialized based on the incoming
+ frame_type.
+
+ If input_format is AMR_ETS, the input data is in the ETS format. The receive
+ frame type is set to the value in the first location of the buffer pointed to
+ by speech_bits_ptr. Then, the encoded speech parameters in the buffer pointed
+ to by speech_bits is copied to dec_ets_input_bfr and the type will be changed
+ from unsigned char to Word16. Lastly, if the receive frame type is not
+ RX_NO_DATA, the mode is obtained from the buffer pointed to by
+ speech_bits_ptr, offset by MAX_SERIAL_SIZE+1, otherwise, the mode is set to
+ the previous mode (found the in state_data->prev_mode).
+
+ If input_format is an unsupported format, byte_offset will be set to -1, to
+ indicate an error condition has occurred, and the function will exit.
+
+ If there are no errors, GSMFrameDecode is called to decode a 20 ms frame. It
+ puts the decoded linear PCM samples in the buffer pointed to by
+ raw_pcm_buffer. Then, the prev_mode field of the structure pointed to by
+ state_data is updated to the current mode.
+
+ This function returns the new byte_offset value to indicate the address
+ offset of the next speech frame to be decoded.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] "AMR Speech Codec Frame Structure", 3GPP TS 26.101 version 4.1.0
+ Release 4, June 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Note: AMRSID_RXTYPE_BIT_OFFSET = 35
+ AMRSID_RXMODE_BIT_OFFSET = 36
+ NUM_AMRSID_RXMODE_BITS = 3
+
+
+ // Set up Decoder state structure pointer
+ Speech_Decode_FrameState *decoder_state
+ = (Speech_Decode_FrameState *) state_data
+
+ // Determine type of de-formatting
+
+ // Decode WMF or IF2 frames
+ IF ((input_format == AMR_RX_WMF) | (input_format == AMR_RX_IF2))
+ THEN
+ IF (input_format == AMR_RX_WMF)
+ THEN
+ // Convert incoming packetized raw WMF data to ETS format
+ CALL wmf_to_ets(frame_type = frame_type
+ input_ptr = speech_bits_ptr
+ output_ptr = &dec_ets_input_bfr)
+ MODIFYING(nothing)
+ RETURNING(nothing)
+
+ // Address offset of the start of next frame
+ byte_offset = WmfDecBytesPerFrame[frame_type]
+
+ ELSEIF (input_format == AMR_RX_IF2)
+ THEN
+ // Convert incoming packetized raw IF2 data to ETS format
+ CALL if2_to_ets(frame_type = frame_type
+ input_ptr = speech_bits_ptr
+ output_ptr = &dec_ets_input_bfr)
+ MODIFYING(nothing)
+ RETURNING(nothing)
+
+ // Address offset of the start of next frame
+ byte_offset = If2DecBytesPerFrame[frame_type]
+
+ ENDIF
+
+ // Determine AMR codec mode and AMR RX frame type
+ IF (frame_type <= AMR_122)
+ THEN
+ mode = (enum Mode) frame_type;
+ rx_type = RX_SPEECH_GOOD;
+
+ ELSEIF (frame_type == AMR_SID)
+ THEN
+ // Clear mode store prior to reading mode info from input buffer
+ mode = 0
+
+ FOR i = 0 TO NUM_AMRSID_RXMODE_BITS-1
+
+ mode |= (dec_ets_input_bfr[AMRSID_RXMODE_BIT_OFFSET+i] << i)
+
+ ENDFOR
+
+ IF (dec_ets_input_bfr[AMRSID_RXTYPE_BIT_OFFSET] == 0)
+ THEN
+ rx_type = RX_SID_FIRST
+
+ ELSE
+ rx_type = RX_SID_UPDATE
+
+ ENDIF
+
+ ELSEIF ((frame_type > AMR_SID) && (frame_type < NO_DATA))
+ THEN
+ // Use previous mode
+ mode = decoder_state->prev_mode
+
+ // Unsupported SID frames
+ rx_type = RX_SPEECH_BAD;
+
+ ELSE
+ // Use previous mode
+ mode = decoder_state->prev_mode
+
+ // No data received
+ rx_type = RX_NO_DATA;
+
+ ENDIF
+
+ // Decode ETS frames
+ ELSEIF (input_format == AMR_RX_ETS)
+ THEN
+ // Change type of pointer to incoming raw ETS data
+ ets_word_ptr = (Word16 *) speech_bits_ptr
+
+ // Get RX frame type
+ rx_type = (enum RXFrameType) *ets_word_ptr
+ ets_word_ptr = ets_word_ptr + 1
+
+ // Copy incoming raw ETS data to dec_ets_input_bfr
+ FOR i = 0 TO MAX_SERIAL_SIZE-1
+
+ dec_ets_input_bfr[i] = *ets_word_ptr
+ ets_word_ptr = ets_word_ptr + 1
+
+ ENDFOR
+
+ // Get codec mode
+ IF (rx_type != RX_NO_DATA)
+ THEN
+ mode = (enum Mode) *ets_word_ptr
+
+ ELSE
+ //Use previous mode if no received data
+ mode = decoder_state->prev_mode
+
+ ENDIF
+
+ // Set up byte_offset
+ byte_offset = 2*(MAX_SERIAL_SIZE+2)
+
+ ELSE
+ // Invalid format, return error code
+ byte_offset = -1
+
+ ENDIF
+
+ // Proceed with decoding frame, if there are no errors
+ IF (byte_offset != -1)
+ THEN
+ // Decode a 20 ms frame
+ CALL GSMFrameDecode( st = decoder_state
+ mode = mode
+ serial = dec_ets_input_bfr,
+ frame_type = rx_type,
+ synth = (Word16 *)raw_pcm_buffer);
+ MODIFYING (nothing)
+ RETURNING (Nothing)
+
+ // Save mode for next frame
+ decoder_state->prev_mode = mode
+
+ ENDIF
+
+ RETURN (byte_offset)
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 AMRDecode(
+ void *state_data,
+ enum Frame_Type_3GPP frame_type,
+ UWord8 *speech_bits_ptr,
+ Word16 *raw_pcm_buffer,
+ bitstream_format input_format
+)
+{
+ Word16 *ets_word_ptr;
+ enum Mode mode = (enum Mode)MR475;
+ int modeStore;
+ int tempInt;
+ enum RXFrameType rx_type = RX_NO_DATA;
+ Word16 dec_ets_input_bfr[MAX_SERIAL_SIZE];
+ Word16 i;
+ Word16 byte_offset = -1;
+
+ /* Type cast state_data to Speech_Decode_FrameState rather than passing
+ * that structure type to this function so the structure make up can't
+ * be viewed from higher level functions than this.
+ */
+ Speech_Decode_FrameState *decoder_state
+ = (Speech_Decode_FrameState *) state_data;
+
+ /* Determine type of de-formatting */
+ /* WMF or IF2 frames */
+ if ((input_format == MIME_IETF) | (input_format == IF2))
+ {
+ if (input_format == MIME_IETF)
+ {
+ /* Convert incoming packetized raw WMF data to ETS format */
+ wmf_to_ets(frame_type, speech_bits_ptr, dec_ets_input_bfr, &(decoder_state->decoder_amrState.common_amr_tbls));
+
+ /* Address offset of the start of next frame */
+ byte_offset = WmfDecBytesPerFrame[frame_type];
+ }
+ else /* else has to be input_format IF2 */
+ {
+ /* Convert incoming packetized raw IF2 data to ETS format */
+ if2_to_ets(frame_type, speech_bits_ptr, dec_ets_input_bfr, &(decoder_state->decoder_amrState.common_amr_tbls));
+
+ /* Address offset of the start of next frame */
+ byte_offset = If2DecBytesPerFrame[frame_type];
+ }
+
+ /* At this point, input data is in ETS format */
+ /* Determine AMR codec mode and AMR RX frame type */
+ if (frame_type <= AMR_122)
+ {
+ mode = (enum Mode) frame_type;
+ rx_type = RX_SPEECH_GOOD;
+ }
+ else if (frame_type == AMR_SID)
+ {
+ /* Clear mode store prior to reading mode info from input buffer */
+ modeStore = 0;
+
+ for (i = 0; i < NUM_AMRSID_RXMODE_BITS; i++)
+ {
+ tempInt = dec_ets_input_bfr[AMRSID_RXMODE_BIT_OFFSET+i] << i;
+ modeStore |= tempInt;
+ }
+ mode = (enum Mode) modeStore;
+
+ /* Get RX frame type */
+ if (dec_ets_input_bfr[AMRSID_RXTYPE_BIT_OFFSET] == 0)
+ {
+ rx_type = RX_SID_FIRST;
+ }
+ else
+ {
+ rx_type = RX_SID_UPDATE;
+ }
+ }
+ else if (frame_type < AMR_NO_DATA)
+ {
+ /* Invalid frame_type, return error code */
+ byte_offset = -1; /* !!! */
+ }
+ else
+ {
+ mode = decoder_state->prev_mode;
+
+ /*
+ * RX_NO_DATA, generate exponential decay from latest valid frame for the first 6 frames
+ * after that, create silent frames
+ */
+ rx_type = RX_NO_DATA;
+
+ }
+
+ }
+
+ /* ETS frames */
+ else if (input_format == ETS)
+ {
+ /* Change type of pointer to incoming raw ETS data */
+ ets_word_ptr = (Word16 *) speech_bits_ptr;
+
+ /* Get RX frame type */
+ rx_type = (enum RXFrameType) * ets_word_ptr;
+ ets_word_ptr++;
+
+ /* Copy incoming raw ETS data to dec_ets_input_bfr */
+ for (i = 0; i < MAX_SERIAL_SIZE; i++)
+ {
+ dec_ets_input_bfr[i] = *ets_word_ptr;
+ ets_word_ptr++;
+ }
+
+ /* Get codec mode */
+ if (rx_type != RX_NO_DATA)
+ {
+ /* Get mode from input bitstream */
+ mode = (enum Mode) * ets_word_ptr;
+ }
+ else
+ {
+ /* Use previous mode if no received data */
+ mode = decoder_state->prev_mode;
+ }
+
+ /* Set up byte_offset */
+ byte_offset = 2 * (MAX_SERIAL_SIZE + 2);
+ }
+ else
+ {
+ /* Invalid input format, return error code */
+ byte_offset = -1;
+ }
+
+ /* Proceed with decoding frame, if there are no errors */
+ if (byte_offset != -1)
+ {
+ /* Decode a 20 ms frame */
+
+#ifndef CONSOLE_DECODER_REF
+ /* Use PV version of sp_dec.c */
+ GSMFrameDecode(decoder_state, mode, dec_ets_input_bfr, rx_type,
+ raw_pcm_buffer);
+
+#else
+ /* Use ETS version of sp_dec.c */
+ Speech_Decode_Frame(decoder_state, mode, dec_ets_input_bfr, rx_type,
+ raw_pcm_buffer);
+
+#endif
+
+ /* Save mode for next frame */
+ decoder_state->prev_mode = mode;
+ }
+
+ return (byte_offset);
+}
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: amrdecode.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the norm_s function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef ARMDECODE_H
+#define ARMDECODE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "frame_type_3gpp.h"
+#include "pvamrnbdecoder_api.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define NUM_AMRSID_RXMODE_BITS 3
+#define AMRSID_RXMODE_BIT_OFFSET 36
+#define AMRSID_RXTYPE_BIT_OFFSET 35
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 WmfDecBytesPerFrame[];
+ extern const Word16 If2DecBytesPerFrame[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ Word16 AMRDecode(
+ void *state_data,
+ enum Frame_Type_3GPP frame_type,
+ UWord8 *speech_bits_ptr,
+ Word16 *raw_pcm_buffer,
+ bitstream_format input_format
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AMRDECODE_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: b_cn_cod.cpp
+ Functions: pseudonoise
+ build_CN_code
+ build_CN_param
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This module contains functions for comfort noise(CN) generation.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "b_cn_cod.h"
+#include "basic_op.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+#define NB_PULSE 10 /* number of random pulses in DTX operation */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: pseudonoise
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pShift_reg = pointer to Old CN generator shift register state (Word32)
+ no_bits = Number of bits (Word16)
+
+ Outputs:
+ pShift_reg -> Updated CN generator shift register state
+
+ Returns:
+ noise_bits = Generated random integer value (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Generate a random integer value to use in comfort noise generation. The
+ algorithm uses polynomial x^31 + x^3 + 1. Length of the PN sequence
+ is 2^31 - 1
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ b_cn_cod.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 pseudonoise (
+ Word32 *shift_reg, // i/o : Old CN generator shift register state
+ Word16 no_bits // i : Number of bits
+)
+{
+ Word16 noise_bits, Sn, i;
+
+ noise_bits = 0;
+ for (i = 0; i < no_bits; i++)
+ {
+ // State n == 31
+ if ((*shift_reg & 0x00000001L) != 0)
+ {
+ Sn = 1;
+ }
+ else
+ {
+ Sn = 0;
+ }
+
+ // State n == 3
+ if ((*shift_reg & 0x10000000L) != 0)
+ {
+ Sn = Sn ^ 1;
+ }
+ else
+ {
+ Sn = Sn ^ 0;
+ }
+
+ noise_bits = shl (noise_bits, 1);
+ noise_bits = noise_bits | (extract_l (*shift_reg) & 1);
+
+ *shift_reg = L_shr (*shift_reg, 1);
+ if (Sn & 1)
+ {
+ *shift_reg = *shift_reg | 0x40000000L;
+ }
+ }
+ return noise_bits;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+Word16 pseudonoise(
+ Word32 *pShift_reg, /* i/o : Old CN generator shift register state */
+ Word16 no_bits /* i : Number of bits */
+)
+{
+ Word16 noise_bits;
+ Word16 Sn;
+ Word16 i;
+ Word16 temp;
+
+ noise_bits = 0;
+
+ for (i = 0; i < no_bits; i++)
+ {
+ /* State n == 31 */
+ if ((*pShift_reg & 0x00000001L) != 0)
+ {
+ Sn = 1;
+ }
+ else
+ {
+ Sn = 0;
+ }
+
+ /* State n == 3 */
+ if ((*pShift_reg & 0x10000000L) != 0)
+ {
+ Sn ^= 1;
+ }
+ else
+ {
+ Sn ^= 0;
+ }
+
+ noise_bits <<= 1;
+
+ temp = (Word16)((*pShift_reg) & 1);
+ noise_bits |= temp;
+
+ *pShift_reg >>= 1;
+ if (Sn & 1)
+ {
+ *pShift_reg |= 0x40000000L;
+ }
+ }
+ return noise_bits;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: build_CN_code
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pSeed = pointer to the Old CN generator shift register state (Word32)
+ cod[] = array to hold the generated CN fixed code vector (Word16)
+ pOverflow = pointer to overflow flag (Flag)
+
+ Outputs:
+ cod[] = generated CN fixed code vector (Word16)
+ pSeed = Updated CN generator shift register state (Word16)
+ pOverflow -> 1 if overflow occured
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+This function computes the comfort noise fixed codebook excitation. The gains
+of the pulses are always +/-1.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ b_cn_cod.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void build_CN_code (
+ Word32 *seed, // i/o : Old CN generator shift register state
+ Word16 cod[] // o : Generated CN fixed codebook vector
+)
+{
+ Word16 i, j, k;
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ cod[i] = 0;
+ }
+
+// The reference ETSI code uses a global flag for Overflow. However in the
+// actual implementation a pointer to the overflow flag is passed into the
+// function so that it can be passed into the basic math functions L_mult()
+// and add()
+
+ for (k = 0; k < NB_PULSE; k++)
+ {
+ i = pseudonoise (seed, 2); // generate pulse position
+ i = shr (extract_l (L_mult (i, 10)), 1);
+ i = add (i, k);
+
+ j = pseudonoise (seed, 1); // generate sign
+
+ if (j > 0)
+ {
+ cod[i] = 4096;
+ }
+ else
+ {
+ cod[i] = -4096;
+ }
+ }
+
+ return;
+}
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void build_CN_code(
+ Word32 *pSeed, /* i/o : Old CN generator shift register state */
+ Word16 cod[], /* o : Generated CN fixed codebook vector */
+ Flag *pOverflow /* i/o : Overflow flag */
+)
+{
+ Word16 i, j, k;
+ Word16 temp;
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ cod[i] = 0;
+ }
+
+ for (k = 0; k < NB_PULSE; k++)
+ {
+ i = pseudonoise(pSeed, 2); /* generate pulse position */
+
+ temp = (Word16)(L_mult(i, 10, pOverflow));
+ i = temp >> 1;
+ i = add_16(i, k, pOverflow);
+
+ j = pseudonoise(pSeed, 1); /* generate sign */
+
+ if (j > 0)
+ {
+ cod[i] = 4096;
+ }
+ else
+ {
+ cod[i] = -4096;
+ }
+ }
+
+ return;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: build_CN_param
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pSeed = pointer to the Old CN generator shift register state (Word32)
+ n_param = Number of parameters to randomize (Word16)
+ param_size_table = table holding paameter sizes (Word16)
+ param[] = array to hold CN generated paramters (Word16)
+ pOverflow = pointer to overflow flag (Flag)
+
+ Outputs:
+ param[] = CN generated parameters (Word16)
+ pSeed = Updated CN generator shift register state (Word16)
+ pOverflow -> 1 if overflow occured
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+This function randomizes the speech parameters, so that they do not produce
+tonal artifacts if used by ECU.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ b_cn_cod.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+void build_CN_param (
+ Word16 *seed, // i/o : Old CN generator shift register state
+ const Word16 n_param, // i : number of params
+ const Word16 param_size_table[],// i : size of params
+ Word16 parm[] // o : CN Generated params
+ )
+{
+ Word16 i;
+ const Word16 *p;
+
+// The reference ETSI code uses a global flag for Overflow. However in the
+// actual implementation a pointer to the overflow flag is passed into the
+// function so that it can be passed into the basic math functions L_add()
+// and L_mult()
+
+ *seed = extract_l(L_add(L_shr(L_mult(*seed, 31821), 1), 13849L));
+
+ p = &window_200_40[*seed & 0x7F];
+ for(i=0; i< n_param;i++){
+ parm[i] = *p++ & ~(0xFFFF<<param_size_table[i]);
+ }
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void build_CN_param(
+ Word16 *pSeed, /* i/o : Old CN generator shift register state */
+ const Word16 n_param, /* i : number of params */
+ const Word16 param_size_table[],/* i : size of params */
+ Word16 parm[], /* o : CN Generated params */
+ const Word16* window_200_40_ptr, /* i : ptr to read-only table */
+ Flag *pOverflow /* i/o : Overflow Flag */
+)
+
+{
+ Word16 i;
+ const Word16 *pTemp;
+ Word32 L_temp;
+ Word16 temp;
+
+ L_temp = L_mult(*pSeed, 31821, pOverflow);
+ L_temp >>= 1;
+
+ *pSeed = (Word16)(L_add(L_temp, 13849L, pOverflow));
+
+ pTemp = &window_200_40_ptr[*pSeed & 0x7F];
+
+ for (i = 0; i < n_param; i++)
+ {
+ temp = ~(0xFFFF << param_size_table[i]);
+ parm[i] = *pTemp++ & temp;
+ }
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: b_cn_cod.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the comfort noise(CN) generator functions
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef B_CN_COD_H
+#define B_CN_COD_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+
+ ; FUNCTION NAME: pseudonoise
+ ;
+ ; PURPOSE: Generate a random integer value to use in comfort noise
+ ; generation. The algorithm uses polynomial x^31 + x^3 + 1
+ ; (length of PN sequence is 2^31 - 1).
+ ;
+ ----------------------------------------------------------------------------*/
+
+ Word16 pseudonoise(
+ Word32 *pShift_reg, /* i/o : Old CN generator shift register state */
+ Word16 no_bits /* i : Number of bits */
+ );
+
+ /*----------------------------------------------------------------------------
+
+ ; FUNCTION NAME: build_CN_code
+ ;
+ ; PURPOSE: Compute the comfort noise fixed codebook excitation. The
+ ; gains of the pulses are always +/-1.
+ ;
+ ----------------------------------------------------------------------------*/
+
+ void build_CN_code(
+ Word32 *pSeed, /* i/o : Old CN generator shift register state */
+ Word16 cod[], /* o : Generated CN fixed codebook vector */
+ Flag *pOverflow /* i/o : Overflow flag */
+ );
+
+ /*----------------------------------------------------------------------------
+
+ ; FUNCTION NAME: build_CN_param
+ ;
+ ; PURPOSE: Randomize the speech parameters. So that they
+ ; do not produce tonal artifacts if used by ECU.
+ ;
+ ----------------------------------------------------------------------------*/
+
+ void build_CN_param(
+ Word16 *pSeed, /* i/o : Old CN generator shift register state */
+ const Word16 n_param, /* i : number of params */
+ const Word16 param_size_table[], /* i : size of params */
+ Word16 parm[], /* o : CN Generated params */
+ const Word16* window_200_40_ptr, /* i : ptr to read-only table */
+ Flag *pOverflow /* i/o : Overflow Flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _B_CN_COD_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Filename: bgnscd.cpp
+ Functions:
+ Bgn_scd_reset
+ Bgn_scd
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Background noise source characteristic detector (SCD)
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "bgnscd.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "cnst.h"
+#include "gmed_n.h"
+#include "sqrt_l.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define TRUE 1
+#define FALSE 0
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Bgn_scd_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = points to memory of type Bgn_scdState.
+
+ Outputs:
+ The memory of type Bgn_scdState pointed to by state is set to all
+ zeros.
+
+ Returns:
+ Returns 0 if memory was successfully initialized,
+ otherwise returns -1.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Resets state memory.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ bgnscd.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 Bgn_scd_reset (Bgn_scdState *state)
+{
+ if (state == (Bgn_scdState *) NULL){
+ fprintf(stderr, "Bgn_scd_reset: invalid parameter\n");
+ return -1;
+ }
+
+ // Static vectors to zero
+ Set_zero (state->frameEnergyHist, L_ENERGYHIST);
+
+ // Initialize hangover handling
+ state->bgHangover = 0;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Bgn_scd_reset(Bgn_scdState *state)
+{
+ if (state == (Bgn_scdState *) NULL)
+ {
+ /* fprintf(stderr, "Bgn_scd_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ /* Static vectors to zero */
+ oscl_memset(state->frameEnergyHist, 0, L_ENERGYHIST*sizeof(Word16));
+
+ /* Initialize hangover handling */
+ state->bgHangover = 0;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Bgn_scd
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to state variables of type Bgn_scdState
+ ltpGainHist[] = LTP gain history (Word16)
+ speech[] = synthesis speech frame (Word16)
+ voicedHangover = pointer to # of frames after last voiced frame (Word16)
+ pOverflow = pointer to overflow indicator (Flag)
+
+ Outputs:
+ st = function updates the state variables of type Bgn_scdState
+ pointed to by st.
+ voicedHangover = function updates the # of frames after last voiced
+ frame pointed to by voicedHangover.
+ pOverflow = 1 if the basic math function L_add() results in saturation.
+ else pOverflow is zero.
+
+ Returns:
+ inbgNoise = flag if background noise is present (Word16)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Characterize synthesis speech and detect background noise.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ bgnscd.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 Bgn_scd (Bgn_scdState *st, // i : State variables for bgn SCD
+ Word16 ltpGainHist[], // i : LTP gain history
+ Word16 speech[], // o : synthesis speech frame
+ Word16 *voicedHangover // o : # of frames after last
+ voiced frame
+ )
+{
+ Word16 i;
+ Word16 prevVoiced, inbgNoise;
+ Word16 temp;
+ Word16 ltpLimit, frameEnergyMin;
+ Word16 currEnergy, noiseFloor, maxEnergy, maxEnergyLastPart;
+ Word32 s;
+
+ // Update the inBackgroundNoise flag (valid for use in next frame if BFI)
+ // it now works as a energy detector floating on top
+ // not as good as a VAD.
+
+ currEnergy = 0;
+ s = (Word32) 0;
+
+ for (i = 0; i < L_FRAME; i++)
+ {
+ s = L_mac (s, speech[i], speech[i]);
+ }
+
+ s = L_shl(s, 2);
+
+ currEnergy = extract_h (s);
+
+ frameEnergyMin = 32767;
+
+ for (i = 0; i < L_ENERGYHIST; i++)
+ {
+ if (sub(st->frameEnergyHist[i], frameEnergyMin) < 0)
+ frameEnergyMin = st->frameEnergyHist[i];
+ }
+
+ noiseFloor = shl (frameEnergyMin, 4); // Frame Energy Margin of 16
+
+ maxEnergy = st->frameEnergyHist[0];
+ for (i = 1; i < L_ENERGYHIST-4; i++)
+ {
+ if ( sub (maxEnergy, st->frameEnergyHist[i]) < 0)
+ {
+ maxEnergy = st->frameEnergyHist[i];
+ }
+ }
+
+ maxEnergyLastPart = st->frameEnergyHist[2*L_ENERGYHIST/3];
+ for (i = 2*L_ENERGYHIST/3+1; i < L_ENERGYHIST; i++)
+ {
+ if ( sub (maxEnergyLastPart, st->frameEnergyHist[i] ) < 0)
+ {
+ maxEnergyLastPart = st->frameEnergyHist[i];
+ }
+ }
+
+ inbgNoise = 0; // false
+
+ // Do not consider silence as noise
+ // Do not consider continuous high volume as noise
+ // Or if the current noise level is very low
+ // Mark as noise if under current noise limit
+ // OR if the maximum energy is below the upper limit
+
+ if ( (sub(maxEnergy, LOWERNOISELIMIT) > 0) &&
+ (sub(currEnergy, FRAMEENERGYLIMIT) < 0) &&
+ (sub(currEnergy, LOWERNOISELIMIT) > 0) &&
+ ( (sub(currEnergy, noiseFloor) < 0) ||
+ (sub(maxEnergyLastPart, UPPERNOISELIMIT) < 0)))
+ {
+ if (sub(add(st->bgHangover, 1), 30) > 0)
+ {
+ st->bgHangover = 30;
+ } else
+ {
+ st->bgHangover = add(st->bgHangover, 1);
+ }
+ }
+ else
+ {
+ st->bgHangover = 0;
+ }
+
+ // make final decision about frame state , act somewhat cautiosly
+ if (sub(st->bgHangover,1) > 0)
+ inbgNoise = 1; // true
+
+ for (i = 0; i < L_ENERGYHIST-1; i++)
+ {
+ st->frameEnergyHist[i] = st->frameEnergyHist[i+1];
+ }
+ st->frameEnergyHist[L_ENERGYHIST-1] = currEnergy;
+
+ // prepare for voicing decision; tighten the threshold after some
+ time in noise
+ ltpLimit = 13926; // 0.85 Q14
+ if (sub(st->bgHangover, 8) > 0)
+ {
+ ltpLimit = 15565; // 0.95 Q14
+ }
+ if (sub(st->bgHangover, 15) > 0)
+ {
+ ltpLimit = 16383; // 1.00 Q14
+ }
+
+ // weak sort of voicing indication.
+ prevVoiced = 0; // false
+
+ if (sub(gmed_n(<pGainHist[4], 5), ltpLimit) > 0)
+ {
+ prevVoiced = 1; // true
+ }
+ if (sub(st->bgHangover, 20) > 0) {
+ if (sub(gmed_n(ltpGainHist, 9), ltpLimit) > 0)
+ {
+ prevVoiced = 1; // true
+ }
+ else
+ {
+ prevVoiced = 0; // false
+ }
+ }
+
+ if (prevVoiced)
+ {
+ *voicedHangover = 0;
+ }
+ else
+ {
+ temp = add(*voicedHangover, 1);
+ if (sub(temp, 10) > 0)
+ {
+ *voicedHangover = 10;
+ }
+ else
+ {
+ *voicedHangover = temp;
+ }
+ }
+
+ return inbgNoise;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Bgn_scd(Bgn_scdState *st, /* i : State variables for bgn SCD */
+ Word16 ltpGainHist[], /* i : LTP gain history */
+ Word16 speech[], /* o : synthesis speech frame */
+ Word16 *voicedHangover,/* o : # of frames after last
+ voiced frame */
+ Flag *pOverflow
+ )
+{
+ Word16 i;
+ Word16 prevVoiced, inbgNoise;
+ Word16 temp;
+ Word16 ltpLimit, frameEnergyMin;
+ Word16 currEnergy, noiseFloor, maxEnergy, maxEnergyLastPart;
+ Word32 s, L_temp;
+
+
+ /* Update the inBackgroundNoise flag (valid for use in next frame if BFI) */
+ /* it now works as a energy detector floating on top */
+ /* not as good as a VAD. */
+
+ s = (Word32) 0;
+
+ for (i = L_FRAME - 1; i >= 0; i--)
+ {
+ L_temp = ((Word32) speech[i]) * speech[i];
+ if (L_temp != (Word32) 0x40000000L)
+ {
+ L_temp = L_temp << 1;
+ }
+ else
+ {
+ L_temp = MAX_32;
+ }
+ s = L_add(s, L_temp, pOverflow);
+ }
+
+ /* s is a sum of squares, so don't need to check for neg overflow */
+ if (s > (Word32)0x1fffffffL)
+ {
+ currEnergy = MAX_16;
+ }
+ else
+ {
+ currEnergy = (Word16)(s >> 14);
+ }
+
+ frameEnergyMin = 32767;
+ for (i = L_ENERGYHIST - 1; i >= 0; i--)
+ {
+ if (st->frameEnergyHist[i] < frameEnergyMin)
+ {
+ frameEnergyMin = st->frameEnergyHist[i];
+ }
+ }
+
+ /* Frame Energy Margin of 16 */
+ L_temp = (Word32)frameEnergyMin << 4;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ if (L_temp > 0)
+ {
+ noiseFloor = MAX_16;
+ }
+ else
+ {
+ noiseFloor = MIN_16;
+ }
+ }
+ else
+ {
+ noiseFloor = (Word16)(L_temp);
+ }
+
+ maxEnergy = st->frameEnergyHist[0];
+ for (i = L_ENERGYHIST - 5; i >= 1; i--)
+ {
+ if (maxEnergy < st->frameEnergyHist[i])
+ {
+ maxEnergy = st->frameEnergyHist[i];
+ }
+ }
+
+ maxEnergyLastPart = st->frameEnergyHist[2*L_ENERGYHIST/3];
+ for (i = 2 * L_ENERGYHIST / 3 + 1; i < L_ENERGYHIST; i++)
+ {
+ if (maxEnergyLastPart < st->frameEnergyHist[i])
+ {
+ maxEnergyLastPart = st->frameEnergyHist[i];
+ }
+ }
+
+ /* Do not consider silence as noise */
+ /* Do not consider continuous high volume as noise */
+ /* Or if the current noise level is very low */
+ /* Mark as noise if under current noise limit */
+ /* OR if the maximum energy is below the upper limit */
+
+ if ((maxEnergy > LOWERNOISELIMIT) &&
+ (currEnergy < FRAMEENERGYLIMIT) &&
+ (currEnergy > LOWERNOISELIMIT) &&
+ ((currEnergy < noiseFloor) ||
+ (maxEnergyLastPart < UPPERNOISELIMIT)))
+ {
+ if ((st->bgHangover + 1) > 30)
+ {
+ st->bgHangover = 30;
+ }
+ else
+ {
+ st->bgHangover += 1;
+ }
+ }
+ else
+ {
+ st->bgHangover = 0;
+ }
+
+ /* make final decision about frame state , act somewhat cautiosly */
+
+ if (st->bgHangover > 1)
+ {
+ inbgNoise = TRUE;
+ }
+ else
+ {
+ inbgNoise = FALSE;
+ }
+
+ for (i = 0; i < L_ENERGYHIST - 1; i++)
+ {
+ st->frameEnergyHist[i] = st->frameEnergyHist[i+1];
+ }
+ st->frameEnergyHist[L_ENERGYHIST-1] = currEnergy;
+
+ /* prepare for voicing decision; tighten the threshold after some
+ time in noise */
+
+ if (st->bgHangover > 15)
+ {
+ ltpLimit = 16383; /* 1.00 Q14 */
+ }
+ else if (st->bgHangover > 8)
+ {
+ ltpLimit = 15565; /* 0.95 Q14 */
+ }
+ else
+ {
+ ltpLimit = 13926; /* 0.85 Q14 */
+ }
+
+ /* weak sort of voicing indication. */
+ prevVoiced = FALSE;
+
+ if (gmed_n(<pGainHist[4], 5) > ltpLimit)
+ {
+ prevVoiced = TRUE;
+ }
+
+ if (st->bgHangover > 20)
+ {
+ if (gmed_n(ltpGainHist, 9) > ltpLimit)
+ {
+ prevVoiced = TRUE;
+ }
+ else
+ {
+ prevVoiced = FALSE;
+ }
+ }
+
+
+ if (prevVoiced)
+ {
+ *voicedHangover = 0;
+ }
+ else
+ {
+ temp = *voicedHangover + 1;
+
+ if (temp > 10)
+ {
+ *voicedHangover = 10;
+ }
+ else
+ {
+ *voicedHangover = temp;
+ }
+ }
+
+ return(inbgNoise);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: bgnscd.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : bgnscd.h
+ Purpose : Background noise source charateristic detector (SCD)
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _BGNSCD_H_
+#define _BGNSCD_H_
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+#define L_ENERGYHIST 60
+#define INV_L_FRAME 102
+
+
+ /* 2*(160*x)^2 / 65536 where x is FLP values 150,5 and 50 */
+#define FRAMEENERGYLIMIT 17578 /* 150 */
+#define LOWERNOISELIMIT 20 /* 5 */
+#define UPPERNOISELIMIT 1953 /* 50 */
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ /* history vector of past synthesis speech energy */
+ Word16 frameEnergyHist[L_ENERGYHIST];
+
+ /* state flags */
+ Word16 bgHangover; /* counter; number of frames after last speech frame */
+
+ } Bgn_scdState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ /*
+ * Function : Bgn_scd_init
+ * Purpose : Allocates initializes state memory
+ * Description : Stores pointer to filter status struct in *st. This
+ * pointer has to be passed to Bgn_scd in each call.
+ * Returns : 0 on success
+ */
+ Word16 Bgn_scd_init(Bgn_scdState **st);
+
+ /*
+ * Function : Bgn_scd_reset
+ * Purpose : Resets state memory
+ * Returns : 0 on success
+ */
+ Word16 Bgn_scd_reset(Bgn_scdState *st);
+
+ /*
+ * Function : Bgn_scd_exit
+ * Purpose : The memory used for state memory is freed
+ * Description : Stores NULL in *s
+ * Returns : void
+ */
+ void Bgn_scd_exit(Bgn_scdState **st);
+
+ /*
+ * Function : Bgn_scd
+ * Purpose : Charaterice synthesis speech and detect background noise
+ * Returns : background noise decision; 0 = bgn, 1 = no bgn
+ */
+ Word16 Bgn_scd(Bgn_scdState *st, /* i : State variables for bgn SCD */
+ Word16 ltpGainHist[], /* i : LTP gain history */
+ Word16 speech[], /* o : synthesis speech frame */
+ Word16 *voicedHangover,/* o : # of frames after last voiced frame */
+ Flag *pOverflow
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _BGNSCD_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c_g_aver.cpp
+ Functions:
+ Cb_gain_average_reset
+ Cb_gain_average
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains functions that reset and perform
+ codebook gain calculations.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "c_g_aver.h"
+#include "typedef.h"
+#include "mode.h"
+#include "cnst.h"
+
+#include "basic_op.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Cb_gain_average_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a structure of type Cb_gain_averageState
+
+ Outputs:
+ Structure pointed to by state is initialized to zeros
+
+ Returns:
+ Returns 0 if memory was successfully initialized,
+ otherwise returns -1.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Resets state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ c_g_aver.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 Cb_gain_average_reset (Cb_gain_averageState *state)
+{
+ if (state == (Cb_gain_averageState *) NULL){
+ fprintf(stderr, "Cb_gain_average_reset: invalid parameter\n");
+ return -1;
+ }
+
+ // Static vectors to zero
+ Set_zero (state->cbGainHistory, L_CBGAINHIST);
+
+ // Initialize hangover handling
+ state->hangVar = 0;
+ state->hangCount= 0;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Cb_gain_average_reset(Cb_gain_averageState *state)
+{
+ if (state == (Cb_gain_averageState *) NULL)
+ {
+ /* fprint(stderr, "Cb_gain_average_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ /* Static vectors to zero */
+ oscl_memset(state->cbGainHistory, 0, L_CBGAINHIST*sizeof(Word16));
+
+ /* Initialize hangover handling */
+ state->hangVar = 0;
+ state->hangCount = 0;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Cb_gain_average
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to structure of type Cb_gain_averageState
+ mode = AMR mode (enum Mode)
+ gain_code = CB gain (Word16)
+ lsp = the LSP for the current frame (Word16)
+ lspAver = the average of LSP for 8 frames (Word16)
+ bfi = bad frame indication flag (Word16)
+ prev_bf = previous bad frame indication flag (Word16)
+ pdfi = potential degraded bad frame ind flag (Word16)
+ prev_pdf = prev pot. degraded bad frame ind flag (Word16)
+ inBackgroundNoise = background noise decision (Word16)
+ voicedHangover = # of frames after last voiced frame (Word16)
+ pOverflow = address of overflow (Flag)
+
+ Returns:
+ cbGainMix = codebook gain (Word16)
+
+ Outputs:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ The mix cb gains for MR475, MR515, MR59, MR67, MR102; gain_code other modes
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ c_g_aver.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 Cb_gain_average (
+ Cb_gain_averageState *st, // i/o : State variables for CB gain avergeing
+ enum Mode mode, // i : AMR mode
+ Word16 gain_code, // i : CB gain Q1
+ Word16 lsp[], // i : The LSP for the current frame Q15
+ Word16 lspAver[], // i : The average of LSP for 8 frames Q15
+ Word16 bfi, // i : bad frame indication flag
+ Word16 prev_bf, // i : previous bad frame indication flag
+ Word16 pdfi, // i : potential degraded bad frame ind flag
+ Word16 prev_pdf, // i : prev pot. degraded bad frame ind flag
+ Word16 inBackgroundNoise, // i : background noise decision
+ Word16 voicedHangover // i : # of frames after last voiced frame
+ )
+{
+ //---------------------------------------------------------*
+ * Compute mixed cb gain, used to make cb gain more *
+ * smooth in background noise for modes 5.15, 5.9 and 6.7 *
+ * states that needs to be updated by all *
+ *---------------------------------------------------------
+ Word16 i;
+ Word16 cbGainMix, diff, tmp_diff, bgMix, cbGainMean;
+ Word32 L_sum;
+ Word16 tmp[M], tmp1, tmp2, shift1, shift2, shift;
+
+ // set correct cbGainMix for MR74, MR795, MR122
+ cbGainMix = gain_code;
+
+ *-------------------------------------------------------*
+ * Store list of CB gain needed in the CB gain *
+ * averaging *
+ *-------------------------------------------------------*
+ for (i = 0; i < (L_CBGAINHIST-1); i++)
+ {
+ st->cbGainHistory[i] = st->cbGainHistory[i+1];
+ }
+ st->cbGainHistory[L_CBGAINHIST-1] = gain_code;
+
+ // compute lsp difference
+ for (i = 0; i < M; i++) {
+ tmp1 = abs_s(sub(lspAver[i], lsp[i])); // Q15
+ shift1 = sub(norm_s(tmp1), 1); // Qn
+ tmp1 = shl(tmp1, shift1); // Q15+Qn
+ shift2 = norm_s(lspAver[i]); // Qm
+ tmp2 = shl(lspAver[i], shift2); // Q15+Qm
+ tmp[i] = div_s(tmp1, tmp2); // Q15+(Q15+Qn)-(Q15+Qm)
+ shift = sub(add(2, shift1), shift2);
+ if (shift >= 0)
+ {
+ tmp[i] = shr(tmp[i], shift); // Q15+Qn-Qm-Qx=Q13
+ }
+ else
+ {
+ tmp[i] = shl(tmp[i], negate(shift)); // Q15+Qn-Qm-Qx=Q13
+ }
+ }
+
+ diff = tmp[0];
+ for (i = 1; i < M; i++) {
+ diff = add(diff, tmp[i]); // Q13
+ }
+
+ // Compute hangover
+ if (sub(diff, 5325) > 0) // 0.65 in Q11
+ {
+ st->hangVar = add(st->hangVar, 1);
+ }
+ else
+ {
+ st->hangVar = 0;
+ }
+
+ if (sub(st->hangVar, 10) > 0)
+ {
+ st->hangCount = 0; // Speech period, reset hangover variable
+ }
+
+ // Compute mix constant (bgMix)
+ bgMix = 8192; // 1 in Q13
+ if ((sub(mode, MR67) <= 0) || (sub(mode, MR102) == 0))
+ // MR475, MR515, MR59, MR67, MR102
+ {
+ // if errors and presumed noise make smoothing probability stronger
+ if (((((pdfi != 0) && (prev_pdf != 0)) || (bfi != 0) || (prev_bf != 0)) &&
+ (sub(voicedHangover, 1) > 0) && (inBackgroundNoise != 0) &&
+ ((sub(mode, MR475) == 0) ||
+ (sub(mode, MR515) == 0) ||
+ (sub(mode, MR59) == 0)) ))
+ {
+ // bgMix = min(0.25, max(0.0, diff-0.55)) / 0.25;
+ tmp_diff = sub(diff, 4506); // 0.55 in Q13
+
+ // max(0.0, diff-0.55)
+ if (tmp_diff > 0)
+ {
+ tmp1 = tmp_diff;
+ }
+ else
+ {
+ tmp1 = 0;
+ }
+
+ // min(0.25, tmp1)
+ if (sub(2048, tmp1) < 0)
+ {
+ bgMix = 8192;
+ }
+ else
+ {
+ bgMix = shl(tmp1, 2);
+ }
+ }
+ else
+ {
+ // bgMix = min(0.25, max(0.0, diff-0.40)) / 0.25;
+ tmp_diff = sub(diff, 3277); // 0.4 in Q13
+
+ // max(0.0, diff-0.40)
+ if (tmp_diff > 0)
+ {
+ tmp1 = tmp_diff;
+ }
+ else
+ {
+ tmp1 = 0;
+ }
+
+ // min(0.25, tmp1)
+ if (sub(2048, tmp1) < 0)
+ {
+ bgMix = 8192;
+ }
+ else
+ {
+ bgMix = shl(tmp1, 2);
+ }
+ }
+
+ if ((sub(st->hangCount, 40) < 0) || (sub(diff, 5325) > 0)) // 0.65 in Q13
+ {
+ bgMix = 8192; // disable mix if too short time since
+ }
+
+ // Smoothen the cb gain trajectory
+ // smoothing depends on mix constant bgMix
+ L_sum = L_mult(6554, st->cbGainHistory[2]); // 0.2 in Q15; L_sum in Q17
+ for (i = 3; i < L_CBGAINHIST; i++)
+ {
+ L_sum = L_mac(L_sum, 6554, st->cbGainHistory[i]);
+ }
+ cbGainMean = pv_round(L_sum); // Q1
+
+ // more smoothing in error and bg noise (NB no DFI used here)
+ if (((bfi != 0) || (prev_bf != 0)) && (inBackgroundNoise != 0) &&
+ ((sub(mode, MR475) == 0) ||
+ (sub(mode, MR515) == 0) ||
+ (sub(mode, MR59) == 0)) )
+ {
+ L_sum = L_mult(4681, st->cbGainHistory[0]); // 0.143 in Q15; L_sum in Q17
+ for (i = 1; i < L_CBGAINHIST; i++)
+ {
+ L_sum = L_mac(L_sum, 4681, st->cbGainHistory[i]);
+ }
+ cbGainMean = pv_round(L_sum); // Q1
+ }
+
+ // cbGainMix = bgMix*cbGainMix + (1-bgMix)*cbGainMean;
+ L_sum = L_mult(bgMix, cbGainMix); // L_sum in Q15
+ L_sum = L_mac(L_sum, 8192, cbGainMean);
+ L_sum = L_msu(L_sum, bgMix, cbGainMean);
+ cbGainMix = pv_round(L_shl(L_sum, 2)); // Q1
+ }
+
+ st->hangCount = add(st->hangCount, 1);
+ return cbGainMix;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Cb_gain_average(
+ Cb_gain_averageState *st, /* i/o : State variables for CB gain averaging */
+ enum Mode mode, /* i : AMR mode */
+ Word16 gain_code, /* i : CB gain Q1 */
+ Word16 lsp[], /* i : The LSP for the current frame Q15 */
+ Word16 lspAver[], /* i : The average of LSP for 8 frames Q15 */
+ Word16 bfi, /* i : bad frame indication flag */
+ Word16 prev_bf, /* i : previous bad frame indication flag */
+ Word16 pdfi, /* i : potential degraded bad frame ind flag */
+ Word16 prev_pdf, /* i : prev pot. degraded bad frame ind flag */
+ Word16 inBackgroundNoise, /* i : background noise decision */
+ Word16 voicedHangover, /* i : # of frames after last voiced frame */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+ Word16 cbGainMix;
+ Word16 diff;
+ Word16 tmp_diff;
+ Word16 bgMix;
+ Word16 cbGainMean;
+ Word32 L_sum;
+ Word16 tmp[M];
+ Word16 tmp1;
+ Word16 tmp2;
+ Word16 shift1;
+ Word16 shift2;
+ Word16 shift;
+
+ /*---------------------------------------------------------*
+ * Compute mixed cb gain, used to make cb gain more *
+ * smooth in background noise for modes 5.15, 5.9 and 6.7 *
+ * states that needs to be updated by all *
+ *---------------------------------------------------------*/
+
+ /* set correct cbGainMix for MR74, MR795, MR122 */
+ cbGainMix = gain_code;
+
+ /*-------------------------------------------------------*
+ * Store list of CB gain needed in the CB gain *
+ * averaging *
+ *-------------------------------------------------------*/
+ for (i = 0; i < (L_CBGAINHIST - 1); i++)
+ {
+ st->cbGainHistory[i] = st->cbGainHistory[i+1];
+ }
+ st->cbGainHistory[L_CBGAINHIST-1] = gain_code;
+
+ diff = 0;
+
+ /* compute lsp difference */
+ for (i = 0; i < M; i++)
+ {
+ tmp1 = abs_s(sub(*(lspAver + i), *(lsp + i), pOverflow));
+ /* Q15 */
+ shift1 = norm_s(tmp1) - 1 ; /* Qn */
+ tmp1 = shl(tmp1, shift1, pOverflow); /* Q15+Qn */
+ shift2 = norm_s(*(lspAver + i)); /* Qm */
+ tmp2 = shl(*(lspAver + i), shift2, pOverflow); /* Q15+Qm */
+ tmp[i] = div_s(tmp1, tmp2); /* Q15+(Q15+Qn)-(Q15+Qm) */
+
+ shift = 2 + shift1 - shift2;
+
+ if (shift >= 0)
+ {
+ *(tmp + i) = shr(*(tmp + i), shift, pOverflow);
+ /* Q15+Qn-Qm-Qx=Q13 */
+ }
+ else
+ {
+ *(tmp + i) = shl(*(tmp + i), negate(shift), pOverflow);
+ /* Q15+Qn-Qm-Qx=Q13 */
+ }
+
+ diff = add_16(diff, *(tmp + i), pOverflow); /* Q13 */
+ }
+
+ /* Compute hangover */
+
+ if (diff > 5325) /* 0.65 in Q11 */
+ {
+ st->hangVar += 1;
+ }
+ else
+ {
+ st->hangVar = 0;
+ }
+
+
+ if (st->hangVar > 10)
+ {
+ /* Speech period, reset hangover variable */
+ st->hangCount = 0;
+ }
+
+ /* Compute mix constant (bgMix) */
+ bgMix = 8192; /* 1 in Q13 */
+
+ if ((mode <= MR67) || (mode == MR102))
+ /* MR475, MR515, MR59, MR67, MR102 */
+ {
+ /* if errors and presumed noise make smoothing probability stronger */
+
+ if (((((pdfi != 0) && (prev_pdf != 0)) || (bfi != 0) ||
+ (prev_bf != 0))
+ && (voicedHangover > 1)
+ && (inBackgroundNoise != 0)
+ && ((mode == MR475) || (mode == MR515) ||
+ (mode == MR59))))
+ {
+ /* bgMix = min(0.25, max(0.0, diff-0.55)) / 0.25; */
+ tmp_diff = diff - 4506; /* 0.55 in Q13 */
+ }
+ else
+ {
+ /* bgMix = min(0.25, max(0.0, diff-0.40)) / 0.25; */
+ tmp_diff = diff - 3277; /* 0.4 in Q13 */
+ }
+
+ /* max(0.0, diff-0.55) or */
+ /* max(0.0, diff-0.40) */
+ if (tmp_diff > 0)
+ {
+ tmp1 = tmp_diff;
+ }
+ else
+ {
+ tmp1 = 0;
+ }
+
+ /* min(0.25, tmp1) */
+ if (2048 < tmp1)
+ {
+ bgMix = 8192;
+ }
+ else
+ {
+ bgMix = shl(tmp1, 2, pOverflow);
+ }
+
+ if ((st->hangCount < 40) || (diff > 5325)) /* 0.65 in Q13 */
+ {
+ /* disable mix if too short time since */
+ bgMix = 8192;
+ }
+
+ /* Smoothen the cb gain trajectory */
+ /* smoothing depends on mix constant bgMix */
+ L_sum = L_mult(6554, st->cbGainHistory[2], pOverflow);
+ /* 0.2 in Q15; L_sum in Q17 */
+
+ for (i = 3; i < L_CBGAINHIST; i++)
+ {
+ L_sum = L_mac(L_sum, 6554, st->cbGainHistory[i], pOverflow);
+ }
+ cbGainMean = pv_round(L_sum, pOverflow); /* Q1 */
+
+ /* more smoothing in error and bg noise (NB no DFI used here) */
+
+ if (((bfi != 0) || (prev_bf != 0)) && (inBackgroundNoise != 0)
+ && ((mode == MR475) || (mode == MR515)
+ || (mode == MR59)))
+ {
+ /* 0.143 in Q15; L_sum in Q17 */
+ L_sum = L_mult(4681, st->cbGainHistory[0], pOverflow);
+ for (i = 1; i < L_CBGAINHIST; i++)
+ {
+ L_sum =
+ L_mac(L_sum, 4681, st->cbGainHistory[i], pOverflow);
+ }
+ cbGainMean = pv_round(L_sum, pOverflow); /* Q1 */
+ }
+
+ /* cbGainMix = bgMix*cbGainMix + (1-bgMix)*cbGainMean; */
+ /* L_sum in Q15 */
+ L_sum = L_mult(bgMix, cbGainMix, pOverflow);
+ L_sum = L_mac(L_sum, 8192, cbGainMean, pOverflow);
+ L_sum = L_msu(L_sum, bgMix, cbGainMean, pOverflow);
+ cbGainMix = pv_round(L_shl(L_sum, 2, pOverflow), pOverflow); /* Q1 */
+ }
+
+ st->hangCount += 1;
+
+ return (cbGainMix);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c_g_aver.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : c_g_aver.h
+ Purpose : Background noise source charateristic detector (SCD)
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _C_G_AVER_H_
+#define _C_G_AVER_H_
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+#define L_CBGAINHIST 7
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ /* history vector of past synthesis speech energy */
+ Word16 cbGainHistory[L_CBGAINHIST];
+
+ /* state flags */
+ Word16 hangVar; /* counter; */
+ Word16 hangCount; /* counter; */
+
+ } Cb_gain_averageState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ /*
+ * Function : Cb_gain_average_init
+ * Purpose : Allocates initializes state memory
+ * Description : Stores pointer to filter status struct in *st. This
+ * pointer has to be passed to Cb_gain_average in each call.
+ * Returns : 0 on success
+ */
+ Word16 Cb_gain_average_init(Cb_gain_averageState **st);
+
+ /*
+ * Function : Cb_gain_average_reset
+ * Purpose : Resets state memory
+ * Returns : 0 on success
+ */
+ Word16 Cb_gain_average_reset(Cb_gain_averageState *st);
+
+ /*
+ * Function : Cb_gain_average_exit
+ * Purpose : The memory used for state memory is freed
+ * Description : Stores NULL in *s
+ * Returns : void
+ */
+ void Cb_gain_average_exit(Cb_gain_averageState **st);
+
+ /*
+ * Function : Cb_gain_average
+ * Purpose : Charaterice synthesis speech and detect background noise
+ * Returns : background noise decision; 0 = bgn, 1 = no bgn
+ */
+ Word16 Cb_gain_average(
+ Cb_gain_averageState *st, /* i/o : State variables for CB gain avergeing */
+ enum Mode mode, /* i : AMR mode */
+ Word16 gain_code, /* i : CB gain Q1 */
+ Word16 lsp[], /* i : The LSP for the current frame Q15 */
+ Word16 lspAver[], /* i : The average of LSP for 8 frames Q15 */
+ Word16 bfi, /* i : bad frame indication flag */
+ Word16 prev_bf, /* i : previous bad frame indication flag */
+ Word16 pdfi, /* i : potential degraded bad frame ind flag */
+ Word16 prev_pdf, /* i : prev pot. degraded bad frame ind flag */
+ Word16 inBackgroundNoise, /* i : background noise decision */
+ Word16 voicedHangover, /* i : # of frames after last voiced frame */
+ Flag *pOverflow
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _C_G_AVER_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d1035pf.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "d1035pf.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NB_PULSE 10 /* number of pulses */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dec_10i40_35bits
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ index = buffer containing index of 10 pulses; each element is
+ represented by sign+position
+ cod = buffer of algebraic (fixed) codebook excitation
+
+ Outputs:
+ cod buffer contains the new algebraic codebook excitation
+
+ Returns:
+ None
+
+ Global Variables Used:
+ dgray = gray decoding table
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function builds the innovative codevector from the received index of
+ algebraic codebook. See c1035pf.c for more details about the algebraic
+ codebook structure.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d1035pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void dec_10i40_35bits (
+ Word16 index[], // (i) : index of 10 pulses (sign+position)
+ Word16 cod[] // (o) : algebraic (fixed) codebook excitation
+)
+{
+ Word16 i, j, pos1, pos2, sign, tmp;
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ cod[i] = 0;
+ }
+
+ // decode the positions and signs of pulses and build the codeword
+
+ for (j = 0; j < NB_TRACK; j++)
+ {
+ // compute index i
+
+ tmp = index[j];
+ i = tmp & 7;
+ i = dgray[i];
+
+ i = extract_l (L_shr (L_mult (i, 5), 1));
+ pos1 = add (i, j); // position of pulse "j"
+
+ i = shr (tmp, 3) & 1;
+ if (i == 0)
+ {
+ sign = 4096; // +1.0
+ }
+ else
+ {
+ sign = -4096; // -1.0
+ }
+
+ cod[pos1] = sign;
+
+ // compute index i
+
+ i = index[add (j, 5)] & 7;
+ i = dgray[i];
+ i = extract_l (L_shr (L_mult (i, 5), 1));
+
+ pos2 = add (i, j); // position of pulse "j+5"
+
+ if (sub (pos2, pos1) < 0)
+ {
+ sign = negate (sign);
+ }
+ cod[pos2] = add (cod[pos2], sign);
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void dec_10i40_35bits(
+ Word16 index[], /* (i) : index of 10 pulses (sign+position) */
+ Word16 cod[], /* (o) : algebraic (fixed) codebook excitation */
+ const Word16* dgray_ptr /* i : ptr to read-only tbl */
+)
+{
+ register Word16 i, j, pos1, pos2;
+ Word16 sign, tmp;
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ *(cod + i) = 0;
+ }
+
+ /* decode the positions and signs of pulses and build the codeword */
+
+ for (j = 0; j < NB_TRACK; j++)
+ {
+ /* compute index i */
+
+ tmp = *(index + j);
+ i = tmp & 7;
+ i = *(dgray_ptr + i);
+
+ i = (Word16)(i * 5);
+ pos1 = i + j; /* position of pulse "j" */
+
+ i = (tmp >> 3) & 1;
+
+ if (i == 0)
+ {
+ sign = 4096; /* +1.0 */
+ }
+ else
+ {
+ sign = -4096; /* -1.0 */
+ }
+
+ *(cod + pos1) = sign;
+
+ /* compute index i */
+
+ i = *(index + j + 5) & 7;
+ i = *(dgray_ptr + i);
+ i = (Word16)(i * 5);
+
+ pos2 = i + j; /* position of pulse "j+5" */
+
+
+ if (pos2 < pos1)
+ {
+ sign = negate(sign);
+ }
+ *(cod + pos2) += sign;
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d1035pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains the prototype declaration for dec_10i40_35bits function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef D1035PF_H
+#define D1035PF_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void dec_10i40_35bits(
+ Word16 index[], /* (i) : index of 10 pulses (sign+position) */
+ Word16 cod[], /* (o) : algebraic (fixed) codebook excitation */
+ const Word16* dgray_ptr /* i : ptr to read-only tbl */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _D1035PF_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d2_11pf.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "d2_11pf.h"
+#include "typedef.h"
+#include "cnst.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NB_PULSE 2
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: decode_2i40_11bits
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ sign -- Word16 -- signs of 2 pulses.
+ index -- Word16 -- Positions of the 2 pulses.
+
+ Outputs:
+ cod[] -- array of type Word16 -- algebraic (fixed) codebook excitation
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d2_11pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void decode_2i40_11bits(
+ Word16 sign, /* i : signs of 2 pulses. */
+ Word16 index, /* i : Positions of the 2 pulses. */
+ Word16 cod[] /* o : algebraic (fixed) codebook excitation */
+)
+
+{
+ Word16 i;
+ Word16 j;
+
+ Word16 pos[NB_PULSE];
+
+ /* Decode the positions */
+
+ j = index & 0x1;
+
+ index >>= 1;
+
+ i = index & 0x7;
+
+ pos[0] = i * 5 + j * 2 + 1;
+
+
+
+
+ index >>= 3;
+
+ j = index & 0x3;
+
+ index >>= 2;
+
+ i = index & 0x7;
+
+ if (j == 3)
+ {
+ pos[1] = i * 5 + 4;
+ }
+ else
+ {
+ pos[1] = i * 5 + j;
+ }
+
+
+
+
+ /* decode the signs and build the codeword */
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ cod[i] = 0;
+ }
+
+ for (j = 0; j < NB_PULSE; j++)
+ {
+ i = sign & 1;
+
+ /* This line is equivalent to...
+ *
+ *
+ * if (i == 1)
+ * {
+ * cod[pos[j]] = 8191;
+ * }
+ * if (i == 0)
+ * {
+ * cod[pos[j]] = -8192;
+ * }
+ */
+
+ cod[pos[j]] = i * 16383 - 8192;
+
+ sign >>= 1;
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : d2_11pf.h
+* Purpose : Algebraic codebook decoder
+*
+********************************************************************************
+*/
+#ifndef d2_11pf_h
+#define d2_11pf_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * LOCAL VARIABLES AND TABLES
+ ********************************************************************************
+ */
+
+ /*
+ ********************************************************************************
+ * DEFINITION OF DATA TYPES
+ ********************************************************************************
+ */
+
+ /*
+ ********************************************************************************
+ * DECLARATION OF PROTOTYPES
+ ********************************************************************************
+ */
+ /*************************************************************************
+ *
+ * FUNCTION: decode_2i40_11bits (decod_ACELP())
+ *
+ * PURPOSE: Algebraic codebook decoder for 2 pulses coded with 11 bits
+ *
+ *************************************************************************/
+
+ void decode_2i40_11bits(
+ Word16 sign, /* i : signs of 2 pulses. */
+ Word16 index, /* i : Positions of the 2 pulses. */
+ Word16 cod[] /* o : algebraic (fixed) codebook excitation */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d2_9pf.cpp
+ Functions: decode_2i40_9bits
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+ FUNCTION: decode_2i40_9bits (decod_ACELP())
+
+ PURPOSE: Algebraic codebook decoder. For details about the encoding see
+ c2_9pf.c
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "d2_9pf.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "cnst.h"
+
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+#define NB_PULSE 2
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: decode_2i40_11bits
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ sign -- Word16 -- signs of 2 pulses.
+ index -- Word16 -- Positions of the 2 pulses.
+
+ Outputs:
+ cod[] -- array of type Word16 -- algebraic (fixed) codebook excitation
+ pOverflow = pointer to overflow flag
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d2_9pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void decode_2i40_9bits(
+ Word16 subNr, /* i : subframe number */
+ Word16 sign, /* i : signs of 2 pulses. */
+ Word16 index, /* i : Positions of the 2 pulses. */
+ const Word16* startPos_ptr, /* i: ptr to read only table */
+ Word16 cod[], /* o : algebraic (fixed) codebook excitation */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 j;
+ Word16 k;
+
+ Word16 pos[NB_PULSE];
+
+ /* Decode the positions */
+ /* table bit is the MSB */
+
+ j = (Word16)(index & 64);
+
+ j >>= 3;
+
+ i = index & 7;
+
+ k =
+ shl(
+ subNr,
+ 1,
+ pOverflow);
+
+ k += j;
+
+ /* pos0 =i*5+startPos_ptr[j*8+subNr*2] */
+ pos[0] = i * 5 + startPos_ptr[k++];
+
+
+ index >>= 3;
+
+ i = index & 7;
+
+ /* pos1 =i*5+startPos_ptr[j*8+subNr*2 + 1] */
+ pos[1] = i * 5 + startPos_ptr[k];
+
+
+ /* decode the signs and build the codeword */
+
+ for (i = L_SUBFR - 1; i >= 0; i--)
+ {
+ cod[i] = 0;
+ }
+
+ for (j = 0; j < NB_PULSE; j++)
+ {
+ i = sign & 0x1;
+
+ /* This line is equivalent to...
+ *
+ *
+ * if (i == 1)
+ * {
+ * cod[pos[j]] = 8191;
+ * }
+ * if (i == 0)
+ * {
+ * cod[pos[j]] = -8192;
+ * }
+ */
+
+ cod[pos[j]] = i * 16383 - 8192;
+
+ sign >>= 1;
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d2_9pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the d2_9pf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef d2_9pf_h
+#define d2_9pf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void decode_2i40_9bits(
+ Word16 subNr, /* i : subframe number */
+ Word16 sign, /* i : signs of 2 pulses. */
+ Word16 index, /* i : Positions of the 2 pulses. */
+ const Word16* startPos_ptr, /* i: ptr to read only table */
+ Word16 cod[], /* o : algebraic (fixed) codebook excitation */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _d2_9PF_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d3_14pf.cpp
+ Functions: decode_3i40_14bits
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+ FUNCTION: decode_3i40_14bits (decod_ACELP())
+
+ PURPOSE: Algebraic codebook decoder. For details about the encoding see
+ c3_14pf.c
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "d3_14pf.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NB_PULSE 3 /* number of pulses */
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: decode_3i40_14bits
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ sign -- Word16 -- signs of 3 pulses.
+ index -- Word16 -- Positions of the 3 pulses.
+
+ Outputs:
+ cod[] -- array of type Word16 -- algebraic (fixed) codebook excitation
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d2_9pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void decode_3i40_14bits(
+ Word16 sign, /* i : signs of 3 pulses. */
+ Word16 index, /* i : Positions of the 3 pulses. */
+ Word16 cod[] /* o : algebraic (fixed) codebook excitation */
+)
+{
+ Word16 i;
+ Word16 j;
+
+ Word16 pos[NB_PULSE];
+
+ /* Decode the positions */
+
+ i = index & 0x7;
+
+ pos[0] = i * 5;
+
+
+
+
+
+ index >>= 3;
+
+ j = index & 0x1;
+
+ index >>= 1;
+
+ i = index & 0x7;
+
+ pos[1] = i * 5 + j * 2 + 1;
+
+
+
+
+
+ index >>= 3;
+
+ j = index & 0x1;
+
+ index >>= 1;
+
+ i = index & 0x7;
+
+ pos[2] = i * 5 + j * 2 + 2;
+
+
+ /* decode the signs and build the codeword */
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ cod[i] = 0;
+ }
+
+ for (j = 0; j < NB_PULSE; j++)
+ {
+ i = sign & 1;
+
+ /* This line is equivalent to...
+ *
+ *
+ * if (i == 1)
+ * {
+ * cod[pos[j]] = 8191;
+ * }
+ * if (i == 0)
+ * {
+ * cod[pos[j]] = -8192;
+ * }
+ */
+
+ cod[pos[j]] = i * 16383 - 8192;
+
+ sign >>= 1;
+
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d3_14pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the d3_14pf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef d3_14pf_h
+#define d3_14pf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void decode_3i40_14bits(
+ Word16 sign, /* i : signs of 3 pulses. */
+ Word16 index, /* i : Positions of the 3 pulses. */
+ Word16 cod[] /* o : algebraic (fixed) codebook excitation */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _d3_14PF_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d4_17pf.cpp
+ Functions: decode_4i40_17bits
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+ FUNCTION: decode_4i40_17bits (decod_ACELP())
+
+ PURPOSE: Algebraic codebook decoder. For details about the encoding see
+ c4_17pf.c
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "basic_op.h"
+#include "cnst.h"
+#include "d4_17pf.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+#define NB_PULSE 4 /* number of pulses */
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: decode_4i40_17bits
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ sign -- Word16 -- signs of 3 pulses.
+ index -- Word16 -- Positions of the 3 pulses.
+
+ Outputs:
+ cod[] -- array of type Word16 -- algebraic (fixed) codebook excitation
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d4_17pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void decode_4i40_17bits(
+ Word16 sign, /* i : signs of 4 pulses. */
+ Word16 index, /* i : Positions of the 4 pulses. */
+ const Word16* dgray_ptr, /* i : Pointer to read-only table */
+ Word16 cod[] /* o : algebraic (fixed) codebook excitation */
+)
+{
+ Word16 i;
+ Word16 j;
+
+ Word16 pos[NB_PULSE];
+
+ /* Index is a 13-bit value. 3 bits each correspond to the
+ * positions 0-2, with 4 bits allocated for position 3.
+ *
+ *
+ * [][][][] [][][] [][][] [][][]
+ * | | | |
+ * | | | |
+ * pos3 pos2 pos1 pos0
+ */
+
+ /* Decode the positions */
+
+ i = index & 0x7;
+
+ i = dgray_ptr[i];
+
+ pos[0] = i * 5; /* pos0 =i*5 */
+
+
+ index >>= 3;
+
+ i = index & 0x7;
+
+ i = dgray_ptr[i];
+
+ pos[1] = i * 5 + 1; /* pos1 =i*5+1 */
+
+
+
+ index >>= 3;
+
+ i = index & 0x7;
+
+ i = dgray_ptr[i];
+
+ pos[2] = i * 5 + 2; /* pos2 =i*5+2 */
+
+
+
+
+
+ index >>= 3;
+
+ j = index & 0x1;
+
+ index >>= 1;
+
+ i = index & 0x7;
+
+ i = dgray_ptr[i];
+
+ pos[3] = i * 5 + 3 + j; /* pos3 =i*5+3+j */
+
+
+ /* decode the signs and build the codeword */
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ cod[i] = 0;
+ }
+
+ for (j = 0; j < NB_PULSE; j++)
+ {
+ i = sign & 0x1;
+
+ /* This line is equivalent to...
+ *
+ *
+ * if (i == 1)
+ * {
+ * cod[pos[j]] = 8191;
+ * }
+ * if (i == 0)
+ * {
+ * cod[pos[j]] = -8192;
+ * }
+ */
+
+ cod[pos[j]] = i * 16383 - 8192;
+
+ sign >>= 1;
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d4_17pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the d4_17pf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef d4_17pf_h
+#define d4_17pf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void decode_4i40_17bits(
+ Word16 sign, /* i : signs of 4 pulses. */
+ Word16 index, /* i : Positions of the 4 pulses. */
+ const Word16* dgray_ptr, /* i : Pointer to read-only table */
+ Word16 cod[] /* o : algebraic (fixed) codebook excitation */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _d4_17PF_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d8_31pf.cpp
+
+------------------------------------------------------------------------------
+
+ MODULE DESCRIPTION
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "d8_31pf.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "cnst.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NB_PULSE 8 /* number of pulses */
+
+/* define values/representation for output codevector and sign */
+#define POS_CODE 8191
+#define NEG_CODE 8191
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: decompress10
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ MSBs -- Word16 -- MSB part of the index
+ LSBs -- Word16 -- LSB part of the index
+ index1 -- Word16 -- index for first pos in pos_index[]
+ index2 -- Word16 -- index for second pos in pos_index[]
+ index3 -- Word16 -- index for third pos in pos_index[]
+
+ Outputs:
+ pos_indx[] -- array of type Word16 -- position of 3 pulses (decompressed)
+
+ pOverflow Flag set when overflow occurs, pointer of type Flag *
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d8_31pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void decompress10(
+ Word16 MSBs, /* i : MSB part of the index */
+ Word16 LSBs, /* i : LSB part of the index */
+ Word16 index1, /* i : index for first pos in pos_index[] */
+ Word16 index2, /* i : index for second pos in pos_index[] */
+ Word16 index3, /* i : index for third pos in pos_index[] */
+ Word16 pos_indx[], /* o : position of 3 pulses (decompressed) */
+ Flag *pOverflow) /* o : Flag set when overflow occurs */
+{
+ Word16 ia;
+ Word16 ib;
+ Word16 ic;
+ Word32 tempWord32;
+
+ /*
+ pos_indx[index1] = ((MSBs-25*(MSBs/25))%5)*2 + (LSBs-4*(LSBs/4))%2;
+ pos_indx[index2] = ((MSBs-25*(MSBs/25))/5)*2 + (LSBs-4*(LSBs/4))/2;
+ pos_indx[index3] = (MSBs/25)*2 + LSBs/4;
+ */
+
+ if (MSBs > 124)
+ {
+ MSBs = 124;
+ }
+
+ ia =
+ mult(
+ MSBs,
+ 1311,
+ pOverflow);
+
+ tempWord32 =
+ L_mult(
+ ia,
+ 25,
+ pOverflow);
+
+
+ ia = (Word16)(MSBs - (tempWord32 >> 1));
+ ib =
+ mult(
+ ia,
+ 6554,
+ pOverflow);
+
+ tempWord32 =
+ L_mult(
+ ib,
+ 5,
+ pOverflow);
+
+ ib = ia - (Word16)(tempWord32 >> 1);
+
+ ib =
+ shl(
+ ib,
+ 1,
+ pOverflow);
+
+
+ ic = LSBs - ((LSBs >> 2) << 2);
+
+
+ pos_indx[index1] = ib + (ic & 1);
+
+
+ ib =
+ mult(
+ ia,
+ 6554,
+ pOverflow);
+
+ ib =
+ shl(
+ ib,
+ 1,
+ pOverflow);
+
+
+ pos_indx[index2] = ib + (ic >> 1);
+
+
+ ib = LSBs >> 2;
+
+ ic =
+ mult(
+ MSBs,
+ 1311,
+ pOverflow);
+
+ ic =
+ shl(
+ ic,
+ 1,
+ pOverflow);
+
+ pos_indx[index3] = add_16(ib, ic, pOverflow);
+
+ return;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: decompress_code
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ indx[] -- array of type Word16 -- position and sign of
+ 8 pulses (compressed)
+
+ Outputs:
+ sign_indx[] -- array of type Word16 -- signs of 4 pulses (signs only)
+ pos_indx[] -- array of type Word16 -- position index of 8 pulses
+ (position only)
+ pOverflow pointer to type Flag -- Flag set when overflow occurs
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: decompression of the linear codewords to 4+three indeces
+ one bit from each pulse is made robust to errors by
+ minimizing the phase shift of a bit error.
+ 4 signs (one for each track)
+ i0,i4,i1 => one index (7+3) bits, 3 LSBs more robust
+ i2,i6,i5 => one index (7+3) bits, 3 LSBs more robust
+ i3,i7 => one index (5+2) bits, 2-3 LSbs more robust
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d8_31pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void decompress_code(
+ Word16 indx[], /* i : position and sign of 8 pulses (compressed) */
+ Word16 sign_indx[], /* o : signs of 4 pulses (signs only) */
+ Word16 pos_indx[], /* o : position index of 8 pulses (position only) */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 ia;
+ Word16 ib;
+ Word16 MSBs;
+ Word16 LSBs;
+ Word16 MSBs0_24;
+ Word32 tempWord32;
+
+ for (i = 0; i < NB_TRACK_MR102; i++)
+ {
+ sign_indx[i] = indx[i];
+ }
+
+ /*
+ First index: 10x10x10 -> 2x5x2x5x2x5-> 125x2x2x2 -> 7+1x3 bits
+ MSBs = indx[NB_TRACK]/8;
+ LSBs = indx[NB_TRACK]%8;
+ */
+ MSBs = indx[NB_TRACK_MR102] >> 3;
+
+ LSBs = indx[NB_TRACK_MR102] & 0x7;
+
+ decompress10(
+ MSBs,
+ LSBs,
+ 0,
+ 4,
+ 1,
+ pos_indx,
+ pOverflow);
+
+ /*
+ Second index: 10x10x10 -> 2x5x2x5x2x5-> 125x2x2x2 -> 7+1x3 bits
+ MSBs = indx[NB_TRACK+1]/8;
+ LSBs = indx[NB_TRACK+1]%8;
+ */
+ MSBs = indx[NB_TRACK_MR102+1] >> 3;
+
+ LSBs = indx[NB_TRACK_MR102+1] & 0x7;
+
+ decompress10(
+ MSBs,
+ LSBs,
+ 2,
+ 6,
+ 5,
+ pos_indx,
+ pOverflow);
+
+ /*
+ Third index: 10x10 -> 2x5x2x5-> 25x2x2 -> 5+1x2 bits
+ MSBs = indx[NB_TRACK+2]/4;
+ LSBs = indx[NB_TRACK+2]%4;
+ MSBs0_24 = (MSBs*25+12)/32;
+ if ((MSBs0_24/5)%2==1)
+ pos_indx[3] = (4-(MSBs0_24%5))*2 + LSBs%2;
+ else
+ pos_indx[3] = (MSBs0_24%5)*2 + LSBs%2;
+ pos_indx[7] = (MSBs0_24/5)*2 + LSBs/2;
+ */
+
+ MSBs = indx[NB_TRACK_MR102+2] >> 2;
+
+ LSBs = indx[NB_TRACK_MR102+2] & 0x3;
+
+ tempWord32 =
+ L_mult(
+ MSBs,
+ 25,
+ pOverflow);
+
+ ia =
+ (Word16)
+ L_shr(
+ tempWord32,
+ 1,
+ pOverflow);
+
+ ia += 12;
+
+ MSBs0_24 = ia >> 5;
+
+
+ ia =
+ mult(
+ MSBs0_24,
+ 6554,
+ pOverflow);
+
+ ia &= 1;
+
+
+ ib =
+ mult(
+ MSBs0_24,
+ 6554,
+ pOverflow);
+
+ tempWord32 =
+ L_mult(
+ ib,
+ 5,
+ pOverflow);
+
+
+ ib = MSBs0_24 - (Word16)(tempWord32 >> 1);
+
+ if (ia == 1)
+ {
+ ib = 4 - ib;
+
+ }
+
+
+ ib =
+ shl(
+ ib,
+ 1,
+ pOverflow);
+
+ ia = LSBs & 0x1;
+
+ pos_indx[3] =
+ add_16(
+ ib,
+ ia,
+ pOverflow);
+
+ ia =
+ mult(
+ MSBs0_24,
+ 6554,
+ pOverflow);
+
+ ia =
+ shl(
+ ia,
+ 1,
+ pOverflow);
+
+ pos_indx[7] = ia + (LSBs >> 1);
+
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dec_8i40_31bits
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ index array of type Word16 -- index of 8 pulses (sign+position)
+
+ Outputs:
+ cod array of type Word16 -- algebraic (fixed) codebook excitation
+ pOverflow pointer to type Flag -- Flag set when overflow occurs
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Builds the innovative codevector from the received
+ index of algebraic codebook.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d8_31pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void dec_8i40_31bits(
+ Word16 index[], /* i : index of 8 pulses (sign+position) */
+ Word16 cod[], /* o : algebraic (fixed) codebook excitation */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 j;
+ Word16 pos1;
+ Word16 pos2;
+ Word16 sign;
+
+ Word16 linear_signs[NB_TRACK_MR102];
+ Word16 linear_codewords[NB_PULSE];
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ cod[i] = 0;
+ }
+
+ decompress_code(
+ index,
+ linear_signs,
+ linear_codewords,
+ pOverflow);
+
+ /* decode the positions and signs of pulses and build the codeword */
+ for (j = 0; j < NB_TRACK_MR102; j++) /* NB_TRACK_MR102 = 4 */
+ {
+ /* position of pulse "j" */
+
+ pos1 = (linear_codewords[j] << 2) + j;
+
+
+ if (linear_signs[j] == 0)
+ {
+ sign = POS_CODE; /* +1.0 */
+ }
+ else
+ {
+ sign = -NEG_CODE; /* -1.0 */
+ }
+
+ if (pos1 < L_SUBFR)
+ {
+ cod[pos1] = sign; /* avoid buffer overflow */
+ }
+
+ /* compute index i */
+ /* position of pulse "j+4" */
+
+ pos2 = (linear_codewords[j + 4] << 2) + j;
+
+
+ if (pos2 < pos1)
+ {
+ sign = negate(sign);
+ }
+
+ if (pos2 < L_SUBFR)
+ {
+ cod[pos2] += sign; /* avoid buffer overflow */
+ }
+
+
+ } /* for (j = 0; j < NB_TRACK_MR102; j++) */
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d8_31pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the d8_31pf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef d8_31pf_h
+#define d8_31pf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void dec_8i40_31bits(
+ Word16 index[], /* i : index of 8 pulses (sign+position) */
+ Word16 cod[], /* o : algebraic (fixed) codebook excitation */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _d8_31PF_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d_gain_c.cpp
+ Functions: d_gain_c
+
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pred_state = pointer to sturcture type gc_predState. MA predictor state
+ mode = AMR mode (MR795 or MR122) of type enum Mode
+ index = received quantization index of type Word16
+ code[] = pointer to innovation codevector of type Word16
+ pOverflow= pointer to value indicating existence of overflow (Flag)
+
+ Outputs:
+ pred_state = pointer to sturcture type gc_predState. MA predictor state
+ gain_code = pointer to decoded innovation gain of type Word16
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : d_gain_code
+ Purpose : Decode the fixed codebook gain using the received index.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d_gain_c.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "d_gain_c.h"
+#include "typedef.h"
+#include "mode.h"
+
+#include "oper_32b.h"
+#include "cnst.h"
+#include "log2.h"
+#include "pow2.h"
+#include "gc_pred.h"
+
+#include "basic_op.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void d_gain_code(
+ gc_predState *pred_state, /* i/o : MA predictor state */
+ enum Mode mode, /* i : AMR mode (MR795 or MR122) */
+ Word16 index, /* i : received quantization index */
+ Word16 code[], /* i : innovation codevector */
+ const Word16* qua_gain_code_ptr, /* i : Pointer to read-only table */
+ Word16 *gain_code, /* o : decoded innovation gain */
+ Flag *pOverflow
+)
+{
+ Word16 gcode0, exp, frac;
+ const Word16 *p;
+ Word16 qua_ener_MR122, qua_ener;
+ Word16 exp_inn_en;
+ Word16 frac_inn_en;
+ Word32 L_tmp;
+ Word16 tbl_tmp;
+ Word16 temp;
+ /*-------------- Decode codebook gain ---------------*/
+
+ /*-------------------------------------------------------------------*
+ * predict codebook gain *
+ * ~~~~~~~~~~~~~~~~~~~~~ *
+ * gc0 = Pow2(int(d)+frac(d)) *
+ * = 2^exp + 2^frac *
+ * *
+ *-------------------------------------------------------------------*/
+
+ gc_pred(pred_state, mode, code, &exp, &frac,
+ &exp_inn_en, &frac_inn_en, pOverflow);
+
+ index &= 31; /* index < 32, to avoid buffer overflow */
+ tbl_tmp = index + (index << 1);
+
+ p = &qua_gain_code_ptr[tbl_tmp];
+
+ /* Different scalings between MR122 and the other modes */
+ temp = sub((Word16)mode, (Word16)MR122, pOverflow);
+ if (temp == 0)
+ {
+ gcode0 = (Word16)(Pow2(exp, frac, pOverflow)); /* predicted gain */
+ gcode0 = shl(gcode0, 4, pOverflow);
+ *gain_code = shl(mult(gcode0, *p++, pOverflow), 1, pOverflow);
+ }
+ else
+ {
+ gcode0 = (Word16)(Pow2(14, frac, pOverflow));
+ L_tmp = L_mult(*p++, gcode0, pOverflow);
+ L_tmp = L_shr(L_tmp, sub(9, exp, pOverflow), pOverflow);
+ *gain_code = (Word16)(L_tmp >> 16); /* Q1 */
+ }
+
+ /*-------------------------------------------------------------------*
+ * update table of past quantized energies *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ *-------------------------------------------------------------------*/
+ qua_ener_MR122 = *p++;
+ qua_ener = *p++;
+ gc_pred_update(pred_state, qua_ener_MR122, qua_ener);
+
+ return;
+}
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d_gain_p.cpp
+ Functions: d_gain_p
+
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ mode -- enumerated type -- AMR mode
+ index -- Word16 -- index of quantization
+ Outputs:
+ None
+
+ Returns:
+ Word16 gain -- (Q14)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : d_gain_pitch
+ Purpose : Decodes the pitch gain using the received index.
+ output is in Q14
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d_gain_p.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "d_gain_p.h"
+#include "typedef.h"
+#include "mode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+Word16 d_gain_pitch( /* return value: gain (Q14) */
+ enum Mode mode, /* i : AMR mode */
+ Word16 index, /* i : index of quantization */
+ const Word16* qua_gain_pitch_ptr /* i : pointer to read-only tables */
+)
+{
+ Word16 gain;
+
+ gain = qua_gain_pitch_ptr[index];
+
+ if (mode == MR122)
+ {
+ /* clear 2 LSBits */
+ gain &= 0xFFFC;
+ }
+
+ return gain;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d_plsf.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ common part (reset) of LSF decoder
+ module (rest in d_plsf_3.c and d_plsf_5.c)
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "basic_op.h"
+#include "cnst.h"
+#include "oscl_mem.h"
+#include "d_plsf.h"
+#include "q_plsf_5_tbl.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: D_plsf_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to structure of type D_plsf_reset
+
+ Outputs:
+ fields of the structure pointed to by state is initialized to zero
+
+ Returns:
+ return_value = 0, if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Resets state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d_plsf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int D_plsf_reset (D_plsfState *state)
+{
+ Word16 i;
+
+ if (state == (D_plsfState *) NULL){
+ // fprintf(stderr, "D_plsf_reset: invalid parameter\n");
+ return -1;
+ }
+
+ for (i = 0; i < M; i++){
+ state->past_r_q[i] = 0; // Past quantized prediction error
+ }
+
+ // Past dequantized lsfs
+ Copy(mean_lsf, &state->past_lsf_q[0], M);
+
+ return 0;
+}
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 D_plsf_reset(D_plsfState *state, const Word16* mean_lsf_5_ptr)
+{
+ Word16 i;
+
+ if (state == (D_plsfState *) NULL)
+ {
+ /* fprintf(stderr, "D_plsf_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ for (i = 0; i < M; i++)
+ {
+ state->past_r_q[i] = 0; /* Past quantized prediction error */
+ }
+
+ /* Past dequantized lsfs */
+ oscl_memmove((void *)&state->past_lsf_q[0], mean_lsf_5_ptr, M*sizeof(*mean_lsf_5_ptr));
+
+ return 0;
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d_plsf_3.cpp
+ Functions: D_plsf_3
+
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- Pointer to type struct D_plsfState
+ mode -- enum Mode -- coder mode
+ bfi -- Word16 -- bad frame indicator (set to 1 if a bad frame is received)
+ indice -- Pointer to type Word16 -- quantization indices of
+ 3 submatrices, Q0
+
+ Outputs:
+ st -- Pointer to type struct D_plsfState
+ lsp1_q -- Pointer to type Word16 -- quantized 1st LSP vector Q15
+ pOverflow -- Pointer to type Flag -- Flag set when overflow occurs
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Decodes the LSP parameters using the received quantization
+ indices.1st order MA prediction and split by 3 vector
+ quantization (split-VQ)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d_plsf_3.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "d_plsf.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "lsp_lsf.h"
+#include "reorder.h"
+#include "oscl_mem.h"
+#include "q_plsf_3_tbl.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define ALPHA 29491 /* ALPHA -> 0.9 */
+#define ONE_ALPHA 3277 /* ONE_ALPHA-> (1.0-ALPHA) */
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void D_plsf_3(
+ D_plsfState *st, /* i/o: State struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 bfi, /* i : bad frame indicator (set to 1 if a */
+ /* bad frame is received) */
+ Word16 * indice, /* i : quantization indices of 3 submatrices, Q0 */
+ CommonAmrTbls* common_amr_tbls, /* i : structure containing ptrs to read-only tables */
+ Word16 * lsp1_q, /* o : quantized 1st LSP vector, Q15 */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 temp;
+ Word16 index;
+
+ Word16 lsf1_r[M];
+ Word16 lsf1_q[M];
+
+ const Word16* mean_lsf_3_ptr = common_amr_tbls->mean_lsf_3_ptr;
+ const Word16* pred_fac_3_ptr = common_amr_tbls->pred_fac_3_ptr;
+ const Word16* dico1_lsf_3_ptr = common_amr_tbls->dico1_lsf_3_ptr;
+ const Word16* dico2_lsf_3_ptr = common_amr_tbls->dico2_lsf_3_ptr;
+ const Word16* dico3_lsf_3_ptr = common_amr_tbls->dico3_lsf_3_ptr;
+ const Word16* mr515_3_lsf_ptr = common_amr_tbls->mr515_3_lsf_ptr;
+ const Word16* mr795_1_lsf_ptr = common_amr_tbls->mr795_1_lsf_ptr;
+
+ if (bfi != 0) /* if bad frame */
+ {
+ /* use the past LSFs slightly shifted towards their mean */
+
+ for (i = 0; i < M; i++)
+ {
+ /* lsfi_q[i] = ALPHA*past_lsf_q[i] + ONE_ALPHA*mean_lsf[i]; */
+ temp =
+ mult(
+ st->past_lsf_q[i],
+ ALPHA,
+ pOverflow);
+
+ index =
+ mult(
+ mean_lsf_3_ptr[i],
+ ONE_ALPHA,
+ pOverflow);
+
+ lsf1_q[i] =
+ add_16(
+ index,
+ temp,
+ pOverflow);
+ }
+
+ /* estimate past quantized residual to be used in next frame */
+ if (mode != MRDTX)
+ {
+ for (i = 0; i < M; i++)
+ {
+ /* temp = mean_lsf[i] + past_r2_q[i] * PRED_FAC; */
+
+ temp =
+ mult(
+ st->past_r_q[i],
+ pred_fac_3_ptr[i],
+ pOverflow);
+
+ temp =
+ add_16(
+ mean_lsf_3_ptr[i],
+ temp,
+ pOverflow);
+
+ st->past_r_q[i] =
+ sub(
+ lsf1_q[i],
+ temp,
+ pOverflow);
+ }
+
+ } /* if (mode == MRDTX) */
+ else
+ {
+ for (i = 0; i < M; i++)
+ {
+ /* temp = mean_lsf[i] + past_r2_q[i]; */
+
+ temp =
+ add_16(
+ mean_lsf_3_ptr[i],
+ st->past_r_q[i],
+ pOverflow);
+
+ st->past_r_q[i] =
+ sub(
+ lsf1_q[i],
+ temp,
+ pOverflow);
+ }
+ }
+
+ } /* if (bfi != 0) */
+
+ else /* if good LSFs received */
+ {
+
+ Word16 index_limit_1 = 0;
+ Word16 index_limit_2 = (DICO2_SIZE - 1) * 3;
+ Word16 index_limit_3 = 0;
+
+ const Word16 *p_cb1;
+ const Word16 *p_cb2;
+ const Word16 *p_cb3;
+ const Word16 *p_dico;
+
+
+ p_cb2 = dico2_lsf_3_ptr; /* size DICO2_SIZE*3 */
+
+ if ((mode == MR475) || (mode == MR515))
+ { /* MR475, MR515 */
+ p_cb1 = dico1_lsf_3_ptr; /* size DICO1_SIZE*3 */
+ p_cb3 = mr515_3_lsf_ptr; /* size MR515_3_SIZE*4 */
+
+ index_limit_1 = (DICO1_SIZE - 1) * 3;
+ index_limit_3 = (MR515_3_SIZE - 1) * 4;
+
+ }
+ else if (mode == MR795)
+ { /* MR795 */
+ p_cb1 = mr795_1_lsf_ptr; /* size MR795_1_SIZE*3 */
+ p_cb3 = dico3_lsf_3_ptr; /* size DICO3_SIZE*4 */
+
+ index_limit_1 = (MR795_1_SIZE - 1) * 3;
+ index_limit_3 = (DICO3_SIZE - 1) * 4;
+
+ }
+ else
+ { /* MR59, MR67, MR74, MR102, MRDTX */
+ p_cb1 = dico1_lsf_3_ptr; /* size DICO1_SIZE*3 */
+ p_cb3 = dico3_lsf_3_ptr; /* size DICO3_SIZE*4 */
+
+ index_limit_1 = (DICO1_SIZE - 1) * 3;
+ index_limit_3 = (DICO3_SIZE - 1) * 4;
+
+ }
+
+ /* decode prediction residuals from 3 received indices */
+
+ index = *indice++;
+
+ /* temp = 3*index; */
+ temp = index + (index << 1);
+
+ if (temp > index_limit_1)
+ {
+ temp = index_limit_1; /* avoid buffer overrun */
+ }
+
+ p_dico = &p_cb1[temp];
+
+ lsf1_r[0] = *p_dico++;
+ lsf1_r[1] = *p_dico++;
+ lsf1_r[2] = *p_dico++;
+
+ index = *indice++;
+
+ if (mode == MR475 || mode == MR515)
+ { /* MR475, MR515 only using every second entry */
+ index <<= 1;
+ }
+
+ /* temp = 3*index */
+ temp = index + (index << 1);
+
+ if (temp > index_limit_2)
+ {
+ temp = index_limit_2; /* avoid buffer overrun */
+ }
+
+ p_dico = &p_cb2[temp];
+
+ lsf1_r[3] = *p_dico++;
+ lsf1_r[4] = *p_dico++;
+ lsf1_r[5] = *p_dico++;
+
+ index = *indice++;
+
+ temp = index << 2;
+
+ if (temp > index_limit_3)
+ {
+ temp = index_limit_3; /* avoid buffer overrun */
+ }
+
+
+ p_dico = &p_cb3[temp];
+
+ lsf1_r[6] = *p_dico++;
+ lsf1_r[7] = *p_dico++;
+ lsf1_r[8] = *p_dico++;
+ lsf1_r[9] = *p_dico++;
+
+ /* Compute quantized LSFs and update the past quantized residual */
+
+ if (mode != MRDTX)
+ {
+ for (i = 0; i < M; i++)
+ {
+ temp =
+ mult(
+ st->past_r_q[i],
+ pred_fac_3_ptr[i],
+ pOverflow);
+
+ temp =
+ add_16(
+ mean_lsf_3_ptr[i],
+ temp,
+ pOverflow);
+
+ lsf1_q[i] =
+ add_16(
+ lsf1_r[i],
+ temp,
+ pOverflow);
+
+ st->past_r_q[i] = lsf1_r[i];
+ }
+ }
+ else
+ {
+ for (i = 0; i < M; i++)
+ {
+ temp =
+ add_16(
+ mean_lsf_3_ptr[i],
+ st->past_r_q[i],
+ pOverflow);
+
+ lsf1_q[i] =
+ add_16(
+ lsf1_r[i],
+ temp,
+ pOverflow);
+
+ st->past_r_q[i] = lsf1_r[i];
+ }
+ }
+
+ }
+
+ /* verification that LSFs has minimum distance of LSF_GAP Hz */
+
+ Reorder_lsf(
+ lsf1_q,
+ LSF_GAP,
+ M,
+ pOverflow);
+
+ oscl_memmove(
+ (void *)st->past_lsf_q,
+ lsf1_q,
+ M*sizeof(*lsf1_q));
+
+ /* convert LSFs to the cosine domain */
+
+ Lsf_lsp(
+ lsf1_q,
+ lsp1_q,
+ M,
+ pOverflow);
+
+ return;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Init_D_plsf_3
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type D_plsfState
+ index = Word16, past_rq_init[] index [0, 7]
+
+ Outputs:
+ st = pointer to a structure of type D_plsfState
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function initializes the D_plsfState structure.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d_plsf_3.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void Init_D_plsf_3(
+ D_plsfState *st, /* i/o: State struct */
+ Word16 index, /* i : past_rq_init[] index [0, 7] */
+ const Word16* past_rq_init_ptr /* ptr to read-only table */)
+{
+ oscl_memmove(
+ (void *)st->past_r_q,
+ &past_rq_init_ptr[index * M],
+ M*sizeof(*past_rq_init_ptr));
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: d_plsf_5.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "d_plsf.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "lsp_lsf.h"
+#include "reorder.h"
+#include "cnst.h"
+#include "oscl_mem.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+ /* ALPHA -> 0.95 */
+ /* ONE_ALPHA-> (1.0-ALPHA) */
+#define ALPHA 31128
+#define ONE_ALPHA 1639
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: D_plsf_5
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type D_plsfState
+ bfi = bad frame indicator; set to 1 if a bad frame is received (Word16)
+ indice = pointer to quantization indices of 5 submatrices (Word16)
+ lsp1_q = pointer to the quantized 1st LSP vector (Word16)
+ lsp2_q = pointer to the quantized 2nd LSP vector (Word16)
+
+ Outputs:
+ lsp1_q points to the updated quantized 1st LSP vector
+ lsp2_q points to the updated quantized 2nd LSP vector
+ Flag *pOverflow -- Flag set when overflow occurs.
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function decodes the 2 sets of LSP parameters in a frame using the
+ received quantization indices.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ d_plsf_5.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int D_plsf_5 (
+ D_plsfState *st, // i/o: State variables
+ Word16 bfi, // i : bad frame indicator (set to 1 if a bad
+ frame is received)
+ Word16 *indice, // i : quantization indices of 5 submatrices, Q0
+ Word16 *lsp1_q, // o : quantized 1st LSP vector (M), Q15
+ Word16 *lsp2_q // o : quantized 2nd LSP vector (M), Q15
+)
+{
+ Word16 i;
+ const Word16 *p_dico;
+ Word16 temp, sign;
+ Word16 lsf1_r[M], lsf2_r[M];
+ Word16 lsf1_q[M], lsf2_q[M];
+
+ if (bfi != 0) // if bad frame
+ {
+ // use the past LSFs slightly shifted towards their mean
+
+ for (i = 0; i < M; i++)
+ {
+ // lsfi_q[i] = ALPHA*st->past_lsf_q[i] + ONE_ALPHA*mean_lsf[i];
+
+ lsf1_q[i] = add (mult (st->past_lsf_q[i], ALPHA),
+ mult (mean_lsf[i], ONE_ALPHA));
+
+ lsf2_q[i] = lsf1_q[i];
+ }
+
+ // estimate past quantized residual to be used in next frame
+
+ for (i = 0; i < M; i++)
+ {
+ // temp = mean_lsf[i] + st->past_r_q[i] * LSP_PRED_FAC_MR122;
+
+ temp = add (mean_lsf[i], mult (st->past_r_q[i],
+ LSP_PRED_FAC_MR122));
+
+ st->past_r_q[i] = sub (lsf2_q[i], temp);
+ }
+ }
+ else
+ // if good LSFs received
+ {
+ // decode prediction residuals from 5 received indices
+
+ p_dico = &dico1_lsf[shl (indice[0], 2)];
+ lsf1_r[0] = *p_dico++;
+ lsf1_r[1] = *p_dico++;
+ lsf2_r[0] = *p_dico++;
+ lsf2_r[1] = *p_dico++;
+
+ p_dico = &dico2_lsf[shl (indice[1], 2)];
+ lsf1_r[2] = *p_dico++;
+ lsf1_r[3] = *p_dico++;
+ lsf2_r[2] = *p_dico++;
+ lsf2_r[3] = *p_dico++;
+
+ sign = indice[2] & 1;
+ i = shr (indice[2], 1);
+ p_dico = &dico3_lsf[shl (i, 2)];
+
+ if (sign == 0)
+ {
+ lsf1_r[4] = *p_dico++;
+ lsf1_r[5] = *p_dico++;
+ lsf2_r[4] = *p_dico++;
+ lsf2_r[5] = *p_dico++;
+ }
+ else
+ {
+ lsf1_r[4] = negate (*p_dico++);
+ lsf1_r[5] = negate (*p_dico++);
+ lsf2_r[4] = negate (*p_dico++);
+ lsf2_r[5] = negate (*p_dico++);
+ }
+
+ p_dico = &dico4_lsf[shl (indice[3], 2)];
+ lsf1_r[6] = *p_dico++;
+ lsf1_r[7] = *p_dico++;
+ lsf2_r[6] = *p_dico++;
+ lsf2_r[7] = *p_dico++;
+
+ p_dico = &dico5_lsf[shl (indice[4], 2)];
+ lsf1_r[8] = *p_dico++;
+ lsf1_r[9] = *p_dico++;
+ lsf2_r[8] = *p_dico++;
+ lsf2_r[9] = *p_dico++;
+
+ // Compute quantized LSFs and update the past quantized residual
+ for (i = 0; i < M; i++)
+ {
+ temp = add (mean_lsf[i], mult (st->past_r_q[i],
+ LSP_PRED_FAC_MR122));
+ lsf1_q[i] = add (lsf1_r[i], temp);
+ lsf2_q[i] = add (lsf2_r[i], temp);
+ st->past_r_q[i] = lsf2_r[i];
+ }
+ }
+
+ // verification that LSFs have minimum distance of LSF_GAP Hz
+
+ Reorder_lsf (lsf1_q, LSF_GAP, M);
+ Reorder_lsf (lsf2_q, LSF_GAP, M);
+
+ Copy (lsf2_q, st->past_lsf_q, M);
+
+ // convert LSFs to the cosine domain
+
+ Lsf_lsp (lsf1_q, lsp1_q, M);
+ Lsf_lsp (lsf2_q, lsp2_q, M);
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void D_plsf_5(
+ D_plsfState *st, /* i/o: State variables */
+ Word16 bfi, /* i : bad frame indicator (set to 1 if a bad
+ frame is received) */
+ Word16 *indice, /* i : quantization indices of 5 submatrices, Q0 */
+ CommonAmrTbls* common_amr_tbls, /* i : structure containing ptrs to read-only tables */
+ Word16 *lsp1_q, /* o : quantized 1st LSP vector (M), Q15 */
+ Word16 *lsp2_q, /* o : quantized 2nd LSP vector (M), Q15 */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ register Word16 i;
+ Word16 temp;
+ Word16 sign;
+
+ const Word16 *p_dico;
+
+ Word16 lsf1_r[M];
+ Word16 lsf2_r[M];
+ Word16 lsf1_q[M];
+ Word16 lsf2_q[M];
+
+ /* These tables are defined in q_plsf_5_tbl.c */
+ const Word16* mean_lsf_5_ptr = common_amr_tbls->mean_lsf_5_ptr;
+ const Word16* dico1_lsf_5_ptr = common_amr_tbls->dico1_lsf_5_ptr;
+ const Word16* dico2_lsf_5_ptr = common_amr_tbls->dico2_lsf_5_ptr;
+ const Word16* dico3_lsf_5_ptr = common_amr_tbls->dico3_lsf_5_ptr;
+ const Word16* dico4_lsf_5_ptr = common_amr_tbls->dico4_lsf_5_ptr;
+ const Word16* dico5_lsf_5_ptr = common_amr_tbls->dico5_lsf_5_ptr;
+
+ if (bfi != 0) /* if bad frame */
+ {
+ /* use the past LSFs slightly shifted towards their mean */
+
+ for (i = 0; i < M; i++)
+ {
+ /*
+ * lsfi_q[i] = ALPHA*st->past_lsf_q[i] +
+ * ONE_ALPHA*mean_lsf[i];
+ */
+
+ temp = (Word16)(((Word32) st->past_lsf_q[i] * ALPHA) >> 15);
+
+ sign = (Word16)(((Word32) * (mean_lsf_5_ptr + i) * ONE_ALPHA) >> 15);
+
+ *(lsf1_q + i) = add_16(sign, temp, pOverflow);
+
+ *(lsf2_q + i) = *(lsf1_q + i);
+
+ /*
+ * estimate past quantized residual to be used in
+ * next frame
+ */
+
+ /*
+ * temp = mean_lsf[i] +
+ * st->past_r_q[i] * LSP_PRED_FAC_MR122;
+ */
+
+ temp = (Word16)(((Word32) st->past_r_q[i] * LSP_PRED_FAC_MR122) >> 15);
+
+ temp = add_16(*(mean_lsf_5_ptr + i), temp, pOverflow);
+
+ st->past_r_q[i] = sub(*(lsf2_q + i), temp, pOverflow);
+ }
+ }
+ else
+ /* if good LSFs received */
+ {
+ /* decode prediction residuals from 5 received indices */
+
+ temp =
+ shl(
+ *(indice),
+ 2,
+ pOverflow);
+
+ p_dico = &dico1_lsf_5_ptr[temp];
+
+ *(lsf1_r + 0) = *p_dico++;
+ *(lsf1_r + 1) = *p_dico++;
+ *(lsf2_r + 0) = *p_dico++;
+ *(lsf2_r + 1) = *p_dico++;
+
+ temp = shl(*(indice + 1), 2, pOverflow);
+
+ p_dico = &dico2_lsf_5_ptr[temp];
+
+ *(lsf1_r + 2) = *p_dico++;
+ *(lsf1_r + 3) = *p_dico++;
+ *(lsf2_r + 2) = *p_dico++;
+ *(lsf2_r + 3) = *p_dico++;
+
+ sign = *(indice + 2) & 1;
+
+ if (*(indice + 2) < 0)
+ {
+ i = ~(~(*(indice + 2)) >> 1);
+ }
+ else
+ {
+ i = *(indice + 2) >> 1;
+ }
+
+ temp = shl(i, 2, pOverflow);
+
+ p_dico = &dico3_lsf_5_ptr[temp];
+
+ if (sign == 0)
+ {
+ *(lsf1_r + 4) = *p_dico++;
+ *(lsf1_r + 5) = *p_dico++;
+ *(lsf2_r + 4) = *p_dico++;
+ *(lsf2_r + 5) = *p_dico++;
+ }
+ else
+ {
+ *(lsf1_r + 4) = negate(*p_dico++);
+ *(lsf1_r + 5) = negate(*p_dico++);
+ *(lsf2_r + 4) = negate(*p_dico++);
+ *(lsf2_r + 5) = negate(*p_dico++);
+ }
+
+ temp = shl(*(indice + 3), 2, pOverflow);
+
+ p_dico = &dico4_lsf_5_ptr[temp];
+
+ *(lsf1_r + 6) = *p_dico++;
+ *(lsf1_r + 7) = *p_dico++;
+ *(lsf2_r + 6) = *p_dico++;
+ *(lsf2_r + 7) = *p_dico++;
+
+ temp = shl(*(indice + 4), 2, pOverflow);
+
+ p_dico = &dico5_lsf_5_ptr[temp];
+
+ *(lsf1_r + 8) = *p_dico++;
+ *(lsf1_r + 9) = *p_dico++;
+ *(lsf2_r + 8) = *p_dico++;
+ *(lsf2_r + 9) = *p_dico++;
+
+ /* Compute quantized LSFs and update the past quantized
+ residual */
+ for (i = 0; i < M; i++)
+ {
+ temp =
+ mult(
+ st->past_r_q[i],
+ LSP_PRED_FAC_MR122,
+ pOverflow);
+
+ temp =
+ add_16(
+ *(mean_lsf_5_ptr + i),
+ temp,
+ pOverflow);
+
+ *(lsf1_q + i) =
+ add_16(
+ *(lsf1_r + i),
+ temp,
+ pOverflow);
+
+ *(lsf2_q + i) =
+ add_16(
+ *(lsf2_r + i),
+ temp,
+ pOverflow);
+
+ st->past_r_q[i] = *(lsf2_r + i);
+ }
+ }
+
+ /* verification that LSFs have minimum distance of LSF_GAP Hz */
+
+ Reorder_lsf(
+ lsf1_q,
+ LSF_GAP,
+ M,
+ pOverflow);
+
+ Reorder_lsf(
+ lsf2_q,
+ LSF_GAP,
+ M,
+ pOverflow);
+
+ oscl_memmove((void *)st->past_lsf_q, lsf2_q, M*sizeof(*lsf2_q));
+
+ /* convert LSFs to the cosine domain */
+
+ Lsf_lsp(
+ lsf1_q,
+ lsp1_q,
+ M,
+ pOverflow);
+
+ Lsf_lsp(
+ lsf2_q,
+ lsp2_q,
+ M,
+ pOverflow);
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Filename: dec_amr.cpp
+ Funtions: Decoder_amr_init
+ Decoder_amr_reset
+ Decoder_amr
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the function used to decode one speech frame using a given
+ codec mode. The functions used to initialize, reset, and exit are also
+ included in this file.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "dec_amr.h"
+#include "typedef.h"
+#include "cnst.h"
+#include "set_zero.h"
+#include "syn_filt.h"
+#include "d_plsf.h"
+#include "agc.h"
+#include "int_lpc.h"
+#include "dec_gain.h"
+#include "dec_lag3.h"
+#include "dec_lag6.h"
+#include "d2_9pf.h"
+#include "d2_11pf.h"
+#include "d3_14pf.h"
+#include "d4_17pf.h"
+#include "d8_31pf.h"
+#include "d1035pf.h"
+#include "pred_lt.h"
+#include "d_gain_p.h"
+#include "d_gain_c.h"
+#include "dec_gain.h"
+#include "ec_gains.h"
+#include "ph_disp.h"
+#include "c_g_aver.h"
+#include "int_lsf.h"
+#include "lsp_lsf.h"
+#include "lsp_avg.h"
+#include "bgnscd.h"
+#include "ex_ctrl.h"
+#include "sqrt_l.h"
+#include "frame.h"
+#include "b_cn_cod.h"
+#include "basic_op.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Decoder_amr_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a pointer to structures of type Decoder_amrState
+
+ Outputs:
+ structure pointed to by the pointer which is pointed to by state is
+ initialized to each field's initial values
+
+ state pointer points to the address of the memory allocated by
+ Decoder_amr_init function
+
+ Returns:
+ return_value = 0, if the initialization was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function allocates and initializes state memory used by the Decoder_amr
+ function. It stores the pointer to the filter status structure in state. This
+ pointer has to be passed to Decoder_amr in each call. The function returns
+ 0, if initialization was successful and -1, otherwise.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dec_amr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Decoder_amr_init (Decoder_amrState **state)
+{
+ Decoder_amrState* s;
+ Word16 i;
+
+ if (state == (Decoder_amrState **) NULL){
+ fprintf(stderr, "Decoder_amr_init: invalid parameter\n");
+ return -1;
+ }
+ *state = NULL;
+
+ // allocate memory
+ if ((s= (Decoder_amrState *) malloc(sizeof(Decoder_amrState))) == NULL){
+ fprintf(stderr, "Decoder_amr_init: can not malloc state structure\n");
+ return -1;
+ }
+
+ s->T0_lagBuff = 40;
+ s->inBackgroundNoise = 0;
+ s->voicedHangover = 0;
+ for (i = 0; i < 9; i++)
+ s->ltpGainHistory[i] = 0;
+
+ s->lsfState = NULL;
+ s->ec_gain_p_st = NULL;
+ s->ec_gain_c_st = NULL;
+ s->pred_state = NULL;
+ s->ph_disp_st = NULL;
+ s->dtxDecoderState = NULL;
+
+ if (D_plsf_init(&s->lsfState) ||
+ ec_gain_pitch_init(&s->ec_gain_p_st) ||
+ ec_gain_code_init(&s->ec_gain_c_st) ||
+ gc_pred_init(&s->pred_state) ||
+ Cb_gain_average_init(&s->Cb_gain_averState) ||
+ lsp_avg_init(&s->lsp_avg_st) ||
+ Bgn_scd_init(&s->background_state) ||
+ ph_disp_init(&s->ph_disp_st) ||
+ dtx_dec_init(&s->dtxDecoderState)) {
+ Decoder_amr_exit(&s);
+ return -1;
+ }
+
+ Decoder_amr_reset(s, (enum Mode)0);
+ *state = s;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Decoder_amr_init(Decoder_amrState *s)
+{
+ Word16 i;
+
+ if (s == (Decoder_amrState *) NULL)
+ {
+ /* fprint(stderr, "Decoder_amr_init: invalid parameter\n"); */
+ return(-1);
+ }
+
+ get_const_tbls(&s->common_amr_tbls);
+
+ s->T0_lagBuff = 40;
+ s->inBackgroundNoise = 0;
+ s->voicedHangover = 0;
+
+ /* Initialize overflow Flag */
+
+ s->overflow = 0;
+
+ for (i = 0; i < LTP_GAIN_HISTORY_LEN; i++)
+ {
+ s->ltpGainHistory[i] = 0;
+ }
+
+ D_plsf_reset(&s->lsfState, s->common_amr_tbls.mean_lsf_5_ptr);
+ ec_gain_pitch_reset(&s->ec_gain_p_st);
+ ec_gain_code_reset(&s->ec_gain_c_st);
+ Cb_gain_average_reset(&s->Cb_gain_averState);
+ lsp_avg_reset(&s->lsp_avg_st, s->common_amr_tbls.mean_lsf_5_ptr);
+ Bgn_scd_reset(&s->background_state);
+ ph_disp_reset(&s->ph_disp_st);
+ dtx_dec_reset(&s->dtxDecoderState);
+ gc_pred_reset(&s->pred_state);
+
+ Decoder_amr_reset(s, MR475);
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Decoder_amr_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a structure of type Decoder_amrState
+ mode = codec mode (enum Mode)
+
+ Outputs:
+ structure pointed to by state is initialized to its reset value
+
+ Returns:
+ return_value = 0, if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function resets the state memory used by the Decoder_amr function. It
+ returns a 0, if reset was successful and -1, otherwise.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dec_amr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Decoder_amr_reset (Decoder_amrState *state, enum Mode mode)
+{
+ Word16 i;
+
+ if (state == (Decoder_amrState *) NULL){
+ fprintf(stderr, "Decoder_amr_reset: invalid parameter\n");
+ return -1;
+ }
+
+ // Initialize static pointer
+ state->exc = state->old_exc + PIT_MAX + L_INTERPOL;
+
+ // Static vectors to zero
+ Set_zero (state->old_exc, PIT_MAX + L_INTERPOL);
+
+ if (mode != MRDTX)
+ Set_zero (state->mem_syn, M);
+
+ // initialize pitch sharpening
+ state->sharp = SHARPMIN;
+ state->old_T0 = 40;
+
+ // Initialize state->lsp_old []
+
+ if (mode != MRDTX) {
+ Copy(lsp_init_data, &state->lsp_old[0], M);
+ }
+
+ // Initialize memories of bad frame handling
+ state->prev_bf = 0;
+ state->prev_pdf = 0;
+ state->state = 0;
+
+ state->T0_lagBuff = 40;
+ state->inBackgroundNoise = 0;
+ state->voicedHangover = 0;
+ if (mode != MRDTX) {
+ for (i=0;i<9;i++)
+ state->excEnergyHist[i] = 0;
+ }
+
+ for (i = 0; i < 9; i++)
+ state->ltpGainHistory[i] = 0;
+
+ Cb_gain_average_reset(state->Cb_gain_averState);
+ if (mode != MRDTX)
+ lsp_avg_reset(state->lsp_avg_st);
+ D_plsf_reset(state->lsfState);
+ ec_gain_pitch_reset(state->ec_gain_p_st);
+ ec_gain_code_reset(state->ec_gain_c_st);
+
+ if (mode != MRDTX)
+ gc_pred_reset(state->pred_state);
+
+ Bgn_scd_reset(state->background_state);
+ state->nodataSeed = 21845;
+ ph_disp_reset(state->ph_disp_st);
+ if (mode != MRDTX)
+ dtx_dec_reset(state->dtxDecoderState);
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Decoder_amr_reset(Decoder_amrState *state, enum Mode mode)
+{
+ Word16 i;
+
+ if (state == (Decoder_amrState *) NULL)
+ {
+ /* fprint(stderr, "Decoder_amr_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ /* Initialize static pointer */
+ state->exc = state->old_exc + PIT_MAX + L_INTERPOL;
+
+ /* Static vectors to zero */
+ oscl_memset(state->old_exc, 0, sizeof(Word16)*(PIT_MAX + L_INTERPOL));
+
+ if (mode != MRDTX)
+ {
+ oscl_memset(state->mem_syn, 0, sizeof(Word16)*M);
+ }
+ /* initialize pitch sharpening */
+ state->sharp = SHARPMIN;
+ state->old_T0 = 40;
+
+ /* Initialize overflow Flag */
+
+ state->overflow = 0;
+
+ /* Initialize state->lsp_old [] */
+
+ if (mode != MRDTX)
+ {
+ state->lsp_old[0] = 30000;
+ state->lsp_old[1] = 26000;
+ state->lsp_old[2] = 21000;
+ state->lsp_old[3] = 15000;
+ state->lsp_old[4] = 8000;
+ state->lsp_old[5] = 0;
+ state->lsp_old[6] = -8000;
+ state->lsp_old[7] = -15000;
+ state->lsp_old[8] = -21000;
+ state->lsp_old[9] = -26000;
+ }
+
+ /* Initialize memories of bad frame handling */
+ state->prev_bf = 0;
+ state->prev_pdf = 0;
+ state->state = 0;
+
+ state->T0_lagBuff = 40;
+ state->inBackgroundNoise = 0;
+ state->voicedHangover = 0;
+ if (mode != MRDTX)
+ {
+ for (i = 0; i < EXC_ENERGY_HIST_LEN; i++)
+ {
+ state->excEnergyHist[i] = 0;
+ }
+ }
+
+ for (i = 0; i < LTP_GAIN_HISTORY_LEN; i++)
+ {
+ state->ltpGainHistory[i] = 0;
+ }
+
+ Cb_gain_average_reset(&(state->Cb_gain_averState));
+ if (mode != MRDTX)
+ {
+ lsp_avg_reset(&(state->lsp_avg_st), state->common_amr_tbls.mean_lsf_5_ptr);
+ }
+ D_plsf_reset(&(state->lsfState), state->common_amr_tbls.mean_lsf_5_ptr);
+ ec_gain_pitch_reset(&(state->ec_gain_p_st));
+ ec_gain_code_reset(&(state->ec_gain_c_st));
+
+ if (mode != MRDTX)
+ {
+ gc_pred_reset(&(state->pred_state));
+ }
+
+ Bgn_scd_reset(&(state->background_state));
+ state->nodataSeed = 21845;
+ ph_disp_reset(&(state->ph_disp_st));
+ if (mode != MRDTX)
+ {
+ dtx_dec_reset(&(state->dtxDecoderState));
+ }
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Decoder_amr
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type Decoder_amrState
+ mode = codec mode (enum Mode)
+ parm = buffer of synthesis parameters (Word16)
+ frame_type = received frame type (enum RXFrameType)
+ synth = buffer containing synthetic speech (Word16)
+ A_t = buffer containing decoded LP filter in 4 subframes (Word16)
+
+ Outputs:
+ structure pointed to by st contains the newly calculated decoder
+ parameters
+ synth buffer contains the decoded speech samples
+ A_t buffer contains the decoded LP filter parameters
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the decoding of one speech frame for a given codec
+ mode.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dec_amr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Decoder_amr (
+ Decoder_amrState *st, // i/o : State variables
+ enum Mode mode, // i : AMR mode
+ Word16 parm[], // i : vector of synthesis parameters
+ (PRM_SIZE)
+ enum RXFrameType frame_type, // i : received frame type
+ Word16 synth[], // o : synthesis speech (L_FRAME)
+ Word16 A_t[] // o : decoded LP filter in 4 subframes
+ (AZ_SIZE)
+)
+{
+ // LPC coefficients
+
+ Word16 *Az; // Pointer on A_t
+
+ // LSPs
+
+ Word16 lsp_new[M];
+ Word16 lsp_mid[M];
+
+ // LSFs
+
+ Word16 prev_lsf[M];
+ Word16 lsf_i[M];
+
+ // Algebraic codevector
+
+ Word16 code[L_SUBFR];
+
+ // excitation
+
+ Word16 excp[L_SUBFR];
+ Word16 exc_enhanced[L_SUBFR];
+
+ // Scalars
+
+ Word16 i, i_subfr;
+ Word16 T0, T0_frac, index, index_mr475 = 0;
+ Word16 gain_pit, gain_code, gain_code_mix, pit_sharp, pit_flag, pitch_fac;
+ Word16 t0_min, t0_max;
+ Word16 delta_frc_low, delta_frc_range;
+ Word16 tmp_shift;
+ Word16 temp;
+ Word32 L_temp;
+ Word16 flag4;
+ Word16 carefulFlag;
+ Word16 excEnergy;
+ Word16 subfrNr;
+ Word16 evenSubfr = 0;
+
+ Word16 bfi = 0; // bad frame indication flag
+ Word16 pdfi = 0; // potential degraded bad frame flag
+
+ enum DTXStateType newDTXState; // SPEECH , DTX, DTX_MUTE
+
+ // find the new DTX state SPEECH OR DTX
+ newDTXState = rx_dtx_handler(st->dtxDecoderState, frame_type);
+
+ // DTX actions
+ if (sub(newDTXState, SPEECH) != 0 )
+ {
+ Decoder_amr_reset (st, MRDTX);
+
+ dtx_dec(st->dtxDecoderState,
+ st->mem_syn,
+ st->lsfState,
+ st->pred_state,
+ st->Cb_gain_averState,
+ newDTXState,
+ mode,
+ parm, synth, A_t);
+ // update average lsp
+
+ Lsf_lsp(st->lsfState->past_lsf_q, st->lsp_old, M);
+ lsp_avg(st->lsp_avg_st, st->lsfState->past_lsf_q);
+ goto the_end;
+ }
+
+ // SPEECH action state machine
+ if ((sub(frame_type, RX_SPEECH_BAD) == 0) ||
+ (sub(frame_type, RX_NO_DATA) == 0) ||
+ (sub(frame_type, RX_ONSET) == 0))
+ {
+ bfi = 1;
+ if ((sub(frame_type, RX_NO_DATA) == 0) ||
+ (sub(frame_type, RX_ONSET) == 0))
+ {
+ build_CN_param(&st->nodataSeed,
+ prmno[mode],
+ bitno[mode],
+ parm);
+ }
+ }
+ else if (sub(frame_type, RX_SPEECH_DEGRADED) == 0)
+ {
+ pdfi = 1;
+ }
+
+ if (bfi != 0)
+ {
+ st->state = add (st->state, 1);
+ }
+ else if (sub (st->state, 6) == 0)
+
+ {
+ st->state = 5;
+ }
+ else
+ {
+ st->state = 0;
+ }
+
+ if (sub (st->state, 6) > 0)
+ {
+ st->state = 6;
+ }
+
+ // If this frame is the first speech frame after CNI period,
+ // set the BFH state machine to an appropriate state depending
+ // on whether there was DTX muting before start of speech or not
+ // If there was DTX muting, the first speech frame is muted.
+ // If there was no DTX muting, the first speech frame is not
+ // muted. The BFH state machine starts from state 5, however, to
+ // keep the audible noise resulting from a SID frame which is
+ // erroneously interpreted as a good speech frame as small as
+ // possible (the decoder output in this case is quickly muted)
+
+ if (sub(st->dtxDecoderState->dtxGlobalState, DTX) == 0)
+ {
+ st->state = 5;
+ st->prev_bf = 0;
+ }
+ else if (sub(st->dtxDecoderState->dtxGlobalState, DTX_MUTE) == 0)
+ {
+ st->state = 5;
+ st->prev_bf = 1;
+ }
+
+ // save old LSFs for CB gain smoothing
+ Copy (st->lsfState->past_lsf_q, prev_lsf, M);
+
+ // decode LSF parameters and generate interpolated lpc coefficients
+ for the 4 subframes
+ if (sub (mode, MR122) != 0)
+ {
+ D_plsf_3(st->lsfState, mode, bfi, parm, lsp_new);
+
+ // Advance synthesis parameters pointer
+ parm += 3;
+
+ Int_lpc_1to3(st->lsp_old, lsp_new, A_t);
+ }
+ else
+ {
+ D_plsf_5 (st->lsfState, bfi, parm, lsp_mid, lsp_new);
+
+ // Advance synthesis parameters pointer
+ parm += 5;
+
+ Int_lpc_1and3 (st->lsp_old, lsp_mid, lsp_new, A_t);
+ }
+
+ // update the LSPs for the next frame
+ for (i = 0; i < M; i++)
+ {
+ st->lsp_old[i] = lsp_new[i];
+ }
+
+ *------------------------------------------------------------------------*
+ * Loop for every subframe in the analysis frame *
+ *------------------------------------------------------------------------*
+ * The subframe size is L_SUBFR and the loop is repeated L_FRAME/L_SUBFR *
+ * times *
+ * - decode the pitch delay *
+ * - decode algebraic code *
+ * - decode pitch and codebook gains *
+ * - find the excitation and compute synthesis speech *
+ *------------------------------------------------------------------------*
+
+ // pointer to interpolated LPC parameters
+ Az = A_t;
+
+ evenSubfr = 0;
+ subfrNr = -1;
+ for (i_subfr = 0; i_subfr < L_FRAME; i_subfr += L_SUBFR)
+ {
+ subfrNr = add(subfrNr, 1);
+ evenSubfr = sub(1, evenSubfr);
+
+ // flag for first and 3th subframe
+ pit_flag = i_subfr;
+
+ if (sub (i_subfr, L_FRAME_BY2) == 0)
+ {
+ if (sub(mode, MR475) != 0 && sub(mode, MR515) != 0)
+ {
+ pit_flag = 0;
+ }
+ }
+
+ // pitch index
+ index = *parm++;
+
+ *-------------------------------------------------------*
+ * - decode pitch lag and find adaptive codebook vector. *
+ *-------------------------------------------------------*
+
+ if (sub(mode, MR122) != 0)
+ {
+ // flag4 indicates encoding with 4 bit resolution;
+ // this is needed for mode MR475, MR515, MR59 and MR67
+
+ flag4 = 0;
+ if ((sub (mode, MR475) == 0) ||
+ (sub (mode, MR515) == 0) ||
+ (sub (mode, MR59) == 0) ||
+ (sub (mode, MR67) == 0) ) {
+ flag4 = 1;
+ }
+
+ *-------------------------------------------------------*
+ * - get ranges for the t0_min and t0_max *
+ * - only needed in delta decoding *
+ *-------------------------------------------------------*
+
+ delta_frc_low = 5;
+ delta_frc_range = 9;
+
+ if ( sub(mode, MR795) == 0 )
+ {
+ delta_frc_low = 10;
+ delta_frc_range = 19;
+ }
+
+ t0_min = sub(st->old_T0, delta_frc_low);
+ if (sub(t0_min, PIT_MIN) < 0)
+ {
+ t0_min = PIT_MIN;
+ }
+ t0_max = add(t0_min, delta_frc_range);
+ if (sub(t0_max, PIT_MAX) > 0)
+ {
+ t0_max = PIT_MAX;
+ t0_min = sub(t0_max, delta_frc_range);
+ }
+
+ Dec_lag3 (index, t0_min, t0_max, pit_flag, st->old_T0,
+ &T0, &T0_frac, flag4);
+
+ st->T0_lagBuff = T0;
+
+ if (bfi != 0)
+ {
+ if (sub (st->old_T0, PIT_MAX) < 0)
+ { // Graceful pitch
+ st->old_T0 = add(st->old_T0, 1); // degradation
+ }
+ T0 = st->old_T0;
+ T0_frac = 0;
+
+ if ( st->inBackgroundNoise != 0 &&
+ sub(st->voicedHangover, 4) > 0 &&
+ ((sub(mode, MR475) == 0 ) ||
+ (sub(mode, MR515) == 0 ) ||
+ (sub(mode, MR59) == 0) )
+ )
+ {
+ T0 = st->T0_lagBuff;
+ }
+ }
+
+ Pred_lt_3or6 (st->exc, T0, T0_frac, L_SUBFR, 1);
+ }
+ else
+ {
+ Dec_lag6 (index, PIT_MIN_MR122,
+ PIT_MAX, pit_flag, &T0, &T0_frac);
+
+ if ( bfi == 0 && (pit_flag == 0 || sub (index, 61) < 0))
+ {
+ }
+ else
+ {
+ st->T0_lagBuff = T0;
+ T0 = st->old_T0;
+ T0_frac = 0;
+ }
+
+ Pred_lt_3or6 (st->exc, T0, T0_frac, L_SUBFR, 0);
+ }
+
+ *-------------------------------------------------------*
+ * - (MR122 only: Decode pitch gain.) *
+ * - Decode innovative codebook. *
+ * - set pitch sharpening factor *
+ *-------------------------------------------------------*
+
+ if (sub (mode, MR475) == 0 || sub (mode, MR515) == 0)
+ { // MR475, MR515
+ index = *parm++; // index of position
+ i = *parm++; // signs
+
+ decode_2i40_9bits (subfrNr, i, index, code);
+
+ pit_sharp = shl (st->sharp, 1);
+ }
+ else if (sub (mode, MR59) == 0)
+ { // MR59
+ index = *parm++; // index of position
+ i = *parm++; // signs
+
+ decode_2i40_11bits (i, index, code);
+
+ pit_sharp = shl (st->sharp, 1);
+ }
+ else if (sub (mode, MR67) == 0)
+ { // MR67
+ index = *parm++; // index of position
+ i = *parm++; // signs
+
+ decode_3i40_14bits (i, index, code);
+
+ pit_sharp = shl (st->sharp, 1);
+ }
+ else if (sub (mode, MR795) <= 0)
+ { // MR74, MR795
+ index = *parm++; // index of position
+ i = *parm++; // signs
+
+ decode_4i40_17bits (i, index, code);
+
+ pit_sharp = shl (st->sharp, 1);
+ }
+ else if (sub (mode, MR102) == 0)
+ { // MR102
+ dec_8i40_31bits (parm, code);
+ parm += 7;
+
+ pit_sharp = shl (st->sharp, 1);
+ }
+ else
+ { // MR122
+ index = *parm++;
+ if (bfi != 0)
+ {
+ ec_gain_pitch (st->ec_gain_p_st, st->state, &gain_pit);
+ }
+ else
+ {
+ gain_pit = d_gain_pitch (mode, index);
+ }
+ ec_gain_pitch_update (st->ec_gain_p_st, bfi, st->prev_bf,
+ &gain_pit);
+
+ dec_10i40_35bits (parm, code);
+ parm += 10;
+
+ // pit_sharp = gain_pit;
+ // if (pit_sharp > 1.0) pit_sharp = 1.0;
+
+ pit_sharp = shl (gain_pit, 1);
+ }
+
+ *-------------------------------------------------------*
+ * - Add the pitch contribution to code[]. *
+ *-------------------------------------------------------*
+ for (i = T0; i < L_SUBFR; i++)
+ {
+ temp = mult (code[i - T0], pit_sharp);
+ code[i] = add (code[i], temp);
+ }
+
+ *------------------------------------------------------------*
+ * - Decode codebook gain (MR122) or both pitch *
+ * gain and codebook gain (all others) *
+ * - Update pitch sharpening "sharp" with quantized gain_pit *
+ *------------------------------------------------------------*
+
+ if (sub (mode, MR475) == 0)
+ {
+ // read and decode pitch and code gain
+ if (evenSubfr != 0)
+ {
+ index_mr475 = *parm++; // index of gain(s)
+ }
+
+ if (bfi == 0)
+ {
+ Dec_gain(st->pred_state, mode, index_mr475, code,
+ evenSubfr, &gain_pit, &gain_code);
+ }
+ else
+ {
+ ec_gain_pitch (st->ec_gain_p_st, st->state, &gain_pit);
+ ec_gain_code (st->ec_gain_c_st, st->pred_state, st->state,
+ &gain_code);
+ }
+ ec_gain_pitch_update (st->ec_gain_p_st, bfi, st->prev_bf,
+ &gain_pit);
+ ec_gain_code_update (st->ec_gain_c_st, bfi, st->prev_bf,
+ &gain_code);
+
+ pit_sharp = gain_pit;
+ if (sub (pit_sharp, SHARPMAX) > 0)
+ {
+ pit_sharp = SHARPMAX;
+ }
+
+ }
+ else if ((sub (mode, MR74) <= 0) ||
+ (sub (mode, MR102) == 0))
+ {
+ // read and decode pitch and code gain
+ index = *parm++; // index of gain(s)
+
+ if (bfi == 0)
+ {
+ Dec_gain(st->pred_state, mode, index, code,
+ evenSubfr, &gain_pit, &gain_code);
+ }
+ else
+ {
+ ec_gain_pitch (st->ec_gain_p_st, st->state, &gain_pit);
+ ec_gain_code (st->ec_gain_c_st, st->pred_state, st->state,
+ &gain_code);
+ }
+ ec_gain_pitch_update (st->ec_gain_p_st, bfi, st->prev_bf,
+ &gain_pit);
+ ec_gain_code_update (st->ec_gain_c_st, bfi, st->prev_bf,
+ &gain_code);
+
+ pit_sharp = gain_pit;
+ if (sub (pit_sharp, SHARPMAX) > 0)
+ {
+ pit_sharp = SHARPMAX;
+ }
+
+ if (sub (mode, MR102) == 0)
+ {
+ if (sub (st->old_T0, add(L_SUBFR, 5)) > 0)
+ {
+ pit_sharp = shr(pit_sharp, 2);
+ }
+ }
+ }
+ else
+ {
+ // read and decode pitch gain
+ index = *parm++; // index of gain(s)
+
+ if (sub (mode, MR795) == 0)
+ {
+ // decode pitch gain
+ if (bfi != 0)
+ {
+ ec_gain_pitch (st->ec_gain_p_st, st->state, &gain_pit);
+ }
+ else
+ {
+ gain_pit = d_gain_pitch (mode, index);
+ }
+ ec_gain_pitch_update (st->ec_gain_p_st, bfi, st->prev_bf,
+ &gain_pit);
+
+ // read and decode code gain
+ index = *parm++;
+ if (bfi == 0)
+ {
+ d_gain_code (st->pred_state, mode, index, code, &gain_code);
+ }
+ else
+ {
+ ec_gain_code (st->ec_gain_c_st, st->pred_state, st->state,
+ &gain_code);
+ }
+ ec_gain_code_update (st->ec_gain_c_st, bfi, st->prev_bf,
+ &gain_code);
+
+ pit_sharp = gain_pit;
+ if (sub (pit_sharp, SHARPMAX) > 0)
+ {
+ pit_sharp = SHARPMAX;
+ }
+ }
+ else
+ { // MR122
+ if (bfi == 0)
+ {
+ d_gain_code (st->pred_state, mode, index, code, &gain_code);
+ }
+ else
+ {
+ ec_gain_code (st->ec_gain_c_st, st->pred_state, st->state,
+ &gain_code);
+ }
+ ec_gain_code_update (st->ec_gain_c_st, bfi, st->prev_bf,
+ &gain_code);
+
+ pit_sharp = gain_pit;
+ }
+ }
+
+ // store pitch sharpening for next subframe
+ // (for modes which use the previous pitch gain for
+ // pitch sharpening in the search phase)
+ // do not update sharpening in even subframes for MR475
+ if (sub(mode, MR475) != 0 || evenSubfr == 0)
+ {
+ st->sharp = gain_pit;
+ if (sub (st->sharp, SHARPMAX) > 0)
+ {
+ st->sharp = SHARPMAX;
+ }
+ }
+
+ pit_sharp = shl (pit_sharp, 1);
+ if (sub (pit_sharp, 16384) > 0)
+ {
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ temp = mult (st->exc[i], pit_sharp);
+ L_temp = L_mult (temp, gain_pit);
+ if (sub(mode, MR122)==0)
+ {
+ L_temp = L_shr (L_temp, 1);
+ }
+ excp[i] = pv_round (L_temp);
+ }
+ }
+
+ *-------------------------------------------------------*
+ * - Store list of LTP gains needed in the source *
+ * characteristic detector (SCD) *
+ *-------------------------------------------------------*
+ if ( bfi == 0 )
+ {
+ for (i = 0; i < 8; i++)
+ {
+ st->ltpGainHistory[i] = st->ltpGainHistory[i+1];
+ }
+ st->ltpGainHistory[8] = gain_pit;
+ }
+
+ *-------------------------------------------------------*
+ * - Limit gain_pit if in background noise and BFI *
+ * for MR475, MR515, MR59 *
+ *-------------------------------------------------------*
+
+ if ( (st->prev_bf != 0 || bfi != 0) && st->inBackgroundNoise != 0 &&
+ ((sub(mode, MR475) == 0) ||
+ (sub(mode, MR515) == 0) ||
+ (sub(mode, MR59) == 0))
+ )
+ {
+ if ( sub (gain_pit, 12288) > 0) // if (gain_pit > 0.75) in Q14
+ gain_pit = add( shr( sub(gain_pit, 12288), 1 ), 12288 );
+ // gain_pit = (gain_pit-0.75)/2.0 + 0.75;
+
+ if ( sub (gain_pit, 14745) > 0) // if (gain_pit > 0.90) in Q14
+ {
+ gain_pit = 14745;
+ }
+ }
+
+ *-------------------------------------------------------*
+ * Calculate CB mixed gain *
+ *-------------------------------------------------------*
+ Int_lsf(prev_lsf, st->lsfState->past_lsf_q, i_subfr, lsf_i);
+ gain_code_mix = Cb_gain_average(
+ st->Cb_gain_averState, mode, gain_code,
+ lsf_i, st->lsp_avg_st->lsp_meanSave, bfi,
+ st->prev_bf, pdfi, st->prev_pdf,
+ st->inBackgroundNoise, st->voicedHangover);
+
+ // make sure that MR74, MR795, MR122 have original code_gain
+ if ((sub(mode, MR67) > 0) && (sub(mode, MR102) != 0) )
+ // MR74, MR795, MR122
+ {
+ gain_code_mix = gain_code;
+ }
+
+ *-------------------------------------------------------*
+ * - Find the total excitation. *
+ * - Find synthesis speech corresponding to st->exc[]. *
+ *-------------------------------------------------------*
+ if (sub(mode, MR102) <= 0) // MR475, MR515, MR59, MR67, MR74, MR795, MR102
+ {
+ pitch_fac = gain_pit;
+ tmp_shift = 1;
+ }
+ else // MR122
+ {
+ pitch_fac = shr (gain_pit, 1);
+ tmp_shift = 2;
+ }
+
+ // copy unscaled LTP excitation to exc_enhanced (used in phase
+ * dispersion below) and compute total excitation for LTP feedback
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ exc_enhanced[i] = st->exc[i];
+
+ // st->exc[i] = gain_pit*st->exc[i] + gain_code*code[i];
+ L_temp = L_mult (st->exc[i], pitch_fac);
+ // 12.2: Q0 * Q13
+ // 7.4: Q0 * Q14
+ L_temp = L_mac (L_temp, code[i], gain_code);
+ // 12.2: Q12 * Q1
+ // 7.4: Q13 * Q1
+ L_temp = L_shl (L_temp, tmp_shift); // Q16
+ st->exc[i] = pv_round (L_temp);
+ }
+
+ *-------------------------------------------------------*
+ * - Adaptive phase dispersion *
+ *-------------------------------------------------------*
+ ph_disp_release(st->ph_disp_st); // free phase dispersion adaption
+
+ if ( ((sub(mode, MR475) == 0) ||
+ (sub(mode, MR515) == 0) ||
+ (sub(mode, MR59) == 0)) &&
+ sub(st->voicedHangover, 3) > 0 &&
+ st->inBackgroundNoise != 0 &&
+ bfi != 0 )
+ {
+ ph_disp_lock(st->ph_disp_st); // Always Use full Phase Disp.
+ } // if error in bg noise
+
+ // apply phase dispersion to innovation (if enabled) and
+ compute total excitation for synthesis part
+ ph_disp(st->ph_disp_st, mode,
+ exc_enhanced, gain_code_mix, gain_pit, code,
+ pitch_fac, tmp_shift);
+
+ *-------------------------------------------------------*
+ * - The Excitation control module are active during BFI.*
+ * - Conceal drops in signal energy if in bg noise. *
+ *-------------------------------------------------------*
+
+ L_temp = 0;
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ L_temp = L_mac (L_temp, exc_enhanced[i], exc_enhanced[i] );
+ }
+
+ L_temp = L_shr (L_temp, 1); // excEnergy = sqrt(L_temp) in Q0
+ L_temp = sqrt_l_exp(L_temp, &temp); // function result
+ L_temp = L_shr(L_temp, add( shr(temp, 1), 15));
+ L_temp = L_shr(L_temp, 2); // To cope with 16-bit and
+ excEnergy = extract_l(L_temp); // scaling in ex_ctrl()
+
+ if ( ((sub (mode, MR475) == 0) ||
+ (sub (mode, MR515) == 0) ||
+ (sub (mode, MR59) == 0)) &&
+ sub(st->voicedHangover, 5) > 0 &&
+ st->inBackgroundNoise != 0 &&
+ sub(st->state, 4) < 0 &&
+ ( (pdfi != 0 && st->prev_pdf != 0) ||
+ bfi != 0 ||
+ st->prev_bf != 0) )
+ {
+ carefulFlag = 0;
+ if ( pdfi != 0 && bfi == 0 )
+ {
+ carefulFlag = 1;
+ }
+
+ Ex_ctrl(exc_enhanced,
+ excEnergy,
+ st->excEnergyHist,
+ st->voicedHangover,
+ st->prev_bf,
+ carefulFlag);
+ }
+
+ if ( st->inBackgroundNoise != 0 &&
+ ( bfi != 0 || st->prev_bf != 0 ) &&
+ sub(st->state, 4) < 0 )
+ {
+ ; // do nothing!
+ }
+ else
+ {
+ // Update energy history for all modes
+ for (i = 0; i < 8; i++)
+ {
+ st->excEnergyHist[i] = st->excEnergyHist[i+1];
+ }
+ st->excEnergyHist[8] = excEnergy;
+ }
+ *-------------------------------------------------------*
+ * Excitation control module end. *
+ *-------------------------------------------------------*
+
+ if (sub (pit_sharp, 16384) > 0)
+ {
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ excp[i] = add (excp[i], exc_enhanced[i]);
+ }
+ agc2 (exc_enhanced, excp, L_SUBFR);
+ Overflow = 0;
+ Syn_filt (Az, excp, &synth[i_subfr], L_SUBFR,
+ st->mem_syn, 0);
+ }
+ else
+ {
+ Overflow = 0;
+ Syn_filt (Az, exc_enhanced, &synth[i_subfr], L_SUBFR,
+ st->mem_syn, 0);
+ }
+
+ if (Overflow != 0) // Test for overflow
+ {
+ for (i = 0; i < PIT_MAX + L_INTERPOL + L_SUBFR; i++)
+ {
+ st->old_exc[i] = shr(st->old_exc[i], 2);
+ }
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ exc_enhanced[i] = shr(exc_enhanced[i], 2);
+ }
+ Syn_filt(Az, exc_enhanced, &synth[i_subfr], L_SUBFR, st->mem_syn, 1);
+ }
+ else
+ {
+ Copy(&synth[i_subfr+L_SUBFR-M], st->mem_syn, M);
+ }
+
+ *--------------------------------------------------*
+ * Update signal for next frame. *
+ * -> shift to the left by L_SUBFR st->exc[] *
+ *--------------------------------------------------*
+
+ Copy (&st->old_exc[L_SUBFR], &st->old_exc[0], PIT_MAX + L_INTERPOL);
+
+ // interpolated LPC parameters for next subframe
+ Az += MP1;
+
+ // store T0 for next subframe
+ st->old_T0 = T0;
+ }
+
+ *-------------------------------------------------------*
+ * Call the Source Characteristic Detector which updates *
+ * st->inBackgroundNoise and st->voicedHangover. *
+ *-------------------------------------------------------*
+
+ st->inBackgroundNoise = Bgn_scd(st->background_state,
+ &(st->ltpGainHistory[0]),
+ &(synth[0]),
+ &(st->voicedHangover) );
+
+ dtx_dec_activity_update(st->dtxDecoderState,
+ st->lsfState->past_lsf_q,
+ synth);
+
+ // store bfi for next subframe
+ st->prev_bf = bfi;
+ st->prev_pdf = pdfi;
+
+ *--------------------------------------------------*
+ * Calculate the LSF averages on the eight *
+ * previous frames *
+ *--------------------------------------------------*
+
+ lsp_avg(st->lsp_avg_st, st->lsfState->past_lsf_q);
+
+the_end:
+ st->dtxDecoderState->dtxGlobalState = newDTXState;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Decoder_amr(
+ Decoder_amrState *st, /* i/o : State variables */
+ enum Mode mode, /* i : AMR mode */
+ Word16 parm[], /* i : vector of synthesis parameters
+ (PRM_SIZE) */
+ enum RXFrameType frame_type, /* i : received frame type */
+ Word16 synth[], /* o : synthesis speech (L_FRAME) */
+ Word16 A_t[] /* o : decoded LP filter in 4 subframes
+ (AZ_SIZE) */
+)
+{
+ /* LPC coefficients */
+
+ Word16 *Az; /* Pointer on A_t */
+
+ /* LSPs */
+
+ Word16 lsp_new[M];
+ Word16 lsp_mid[M];
+
+ /* LSFs */
+
+ Word16 prev_lsf[M];
+ Word16 lsf_i[M];
+
+ /* Algebraic codevector */
+
+ Word16 code[L_SUBFR];
+
+ /* excitation */
+
+ Word16 excp[L_SUBFR];
+ Word16 exc_enhanced[L_SUBFR];
+
+ /* Scalars */
+
+ Word16 i;
+ Word16 i_subfr;
+ Word16 T0;
+ Word16 T0_frac;
+ Word16 index;
+ Word16 index_mr475 = 0;
+ Word16 gain_pit;
+ Word16 gain_code;
+ Word16 gain_code_mix;
+ Word16 pit_sharp;
+ Word16 pit_flag;
+ Word16 pitch_fac;
+ Word16 t0_min;
+ Word16 t0_max;
+ Word16 delta_frc_low;
+ Word16 delta_frc_range;
+ Word16 tmp_shift;
+ Word16 temp;
+ Word32 L_temp;
+ Word16 flag4;
+ Word16 carefulFlag;
+ Word16 excEnergy;
+ Word16 subfrNr;
+ Word16 evenSubfr = 0;
+
+ Word16 bfi = 0; /* bad frame indication flag */
+ Word16 pdfi = 0; /* potential degraded bad frame flag */
+
+ enum DTXStateType newDTXState; /* SPEECH , DTX, DTX_MUTE */
+ Flag *pOverflow = &(st->overflow); /* Overflow flag */
+
+
+ /* find the new DTX state SPEECH OR DTX */
+ newDTXState = rx_dtx_handler(&(st->dtxDecoderState), frame_type, pOverflow);
+
+ /* DTX actions */
+
+ if (newDTXState != SPEECH)
+ {
+ Decoder_amr_reset(st, MRDTX);
+
+ dtx_dec(&(st->dtxDecoderState),
+ st->mem_syn,
+ &(st->lsfState),
+ &(st->pred_state),
+ &(st->Cb_gain_averState),
+ newDTXState,
+ mode,
+ parm, &(st->common_amr_tbls), synth, A_t, pOverflow);
+
+ /* update average lsp */
+ Lsf_lsp(
+ st->lsfState.past_lsf_q,
+ st->lsp_old,
+ M,
+ pOverflow);
+
+ lsp_avg(
+ &(st->lsp_avg_st),
+ st->lsfState.past_lsf_q,
+ pOverflow);
+
+ goto the_end;
+ }
+
+ /* SPEECH action state machine */
+ if ((frame_type == RX_SPEECH_BAD) || (frame_type == RX_NO_DATA) ||
+ (frame_type == RX_ONSET))
+ {
+ bfi = 1;
+
+ if ((frame_type == RX_NO_DATA) || (frame_type == RX_ONSET))
+ {
+ build_CN_param(&st->nodataSeed,
+ st->common_amr_tbls.prmno_ptr[mode],
+ st->common_amr_tbls.bitno_ptr[mode],
+ parm,
+ st->common_amr_tbls.window_200_40_ptr,
+ pOverflow);
+ }
+ }
+ else if (frame_type == RX_SPEECH_DEGRADED)
+ {
+ pdfi = 1;
+ }
+
+ if (bfi != 0)
+ {
+ st->state += 1;
+ }
+ else if (st->state == 6)
+
+ {
+ st->state = 5;
+ }
+ else
+ {
+ st->state = 0;
+ }
+
+
+ if (st->state > 6)
+ {
+ st->state = 6;
+ }
+
+ /* If this frame is the first speech frame after CNI period, */
+ /* set the BFH state machine to an appropriate state depending */
+ /* on whether there was DTX muting before start of speech or not */
+ /* If there was DTX muting, the first speech frame is muted. */
+ /* If there was no DTX muting, the first speech frame is not */
+ /* muted. The BFH state machine starts from state 5, however, to */
+ /* keep the audible noise resulting from a SID frame which is */
+ /* erroneously interpreted as a good speech frame as small as */
+ /* possible (the decoder output in this case is quickly muted) */
+
+ if (st->dtxDecoderState.dtxGlobalState == DTX)
+ {
+ st->state = 5;
+ st->prev_bf = 0;
+ }
+ else if (st->dtxDecoderState.dtxGlobalState == DTX_MUTE)
+ {
+ st->state = 5;
+ st->prev_bf = 1;
+ }
+
+ /* save old LSFs for CB gain smoothing */
+ oscl_memmove((void *)prev_lsf, st->lsfState.past_lsf_q, M*sizeof(*st->lsfState.past_lsf_q));
+
+ /* decode LSF parameters and generate interpolated lpc coefficients
+ for the 4 subframes */
+
+ if (mode != MR122)
+ {
+ D_plsf_3(
+ &(st->lsfState),
+ mode,
+ bfi,
+ parm,
+ &st->common_amr_tbls,
+ lsp_new,
+ pOverflow);
+
+ /* Advance synthesis parameters pointer */
+ parm += 3;
+
+ Int_lpc_1to3(
+ st->lsp_old,
+ lsp_new,
+ A_t,
+ pOverflow);
+ }
+ else
+ {
+ D_plsf_5(
+ &(st->lsfState),
+ bfi,
+ parm,
+ &(st->common_amr_tbls),
+ lsp_mid,
+ lsp_new,
+ pOverflow);
+
+ /* Advance synthesis parameters pointer */
+ parm += 5;
+
+ Int_lpc_1and3(
+ st->lsp_old,
+ lsp_mid,
+ lsp_new,
+ A_t,
+ pOverflow);
+ }
+
+ /* update the LSPs for the next frame */
+ for (i = 0; i < M; i++)
+ {
+ st->lsp_old[i] = lsp_new[i];
+ }
+
+ /*------------------------------------------------------------------------*
+ * Loop for every subframe in the analysis frame *
+ *------------------------------------------------------------------------*
+ * The subframe size is L_SUBFR and the loop is repeated L_FRAME/L_SUBFR *
+ * times *
+ * - decode the pitch delay *
+ * - decode algebraic code *
+ * - decode pitch and codebook gains *
+ * - find the excitation and compute synthesis speech *
+ *------------------------------------------------------------------------*/
+
+ /* pointer to interpolated LPC parameters */
+ Az = A_t;
+
+ evenSubfr = 0;
+ subfrNr = -1;
+ for (i_subfr = 0; i_subfr < L_FRAME; i_subfr += L_SUBFR)
+ {
+ subfrNr += 1;
+ evenSubfr = 1 - evenSubfr;
+
+ /* flag for first and 3th subframe */
+ pit_flag = i_subfr;
+
+
+ if (i_subfr == L_FRAME_BY2)
+ {
+ if ((mode != MR475) && (mode != MR515))
+ {
+ pit_flag = 0;
+ }
+ }
+
+ /* pitch index */
+ index = *parm++;
+
+ /*-------------------------------------------------------*
+ * - decode pitch lag and find adaptive codebook vector. *
+ *-------------------------------------------------------*/
+
+ if (mode != MR122)
+ {
+ /* flag4 indicates encoding with 4 bit resolution; */
+ /* this is needed for mode MR475, MR515, MR59 and MR67 */
+
+ flag4 = 0;
+
+ if ((mode == MR475) || (mode == MR515) || (mode == MR59) ||
+ (mode == MR67))
+ {
+ flag4 = 1;
+ }
+
+ /*-------------------------------------------------------*
+ * - get ranges for the t0_min and t0_max *
+ * - only needed in delta decoding *
+ *-------------------------------------------------------*/
+
+ delta_frc_low = 5;
+ delta_frc_range = 9;
+
+ if (mode == MR795)
+ {
+ delta_frc_low = 10;
+ delta_frc_range = 19;
+ }
+
+ t0_min = st->old_T0 - delta_frc_low;
+
+ if (t0_min < PIT_MIN)
+ {
+ t0_min = PIT_MIN;
+ }
+ t0_max = t0_min + delta_frc_range;
+
+ if (t0_max > PIT_MAX)
+ {
+ t0_max = PIT_MAX;
+ t0_min = t0_max - delta_frc_range;
+ }
+
+ Dec_lag3(index, t0_min, t0_max, pit_flag, st->old_T0,
+ &T0, &T0_frac, flag4, pOverflow);
+
+ st->T0_lagBuff = T0;
+
+ if (bfi != 0)
+ {
+ if (st->old_T0 < PIT_MAX)
+ { /* Graceful pitch */
+ st->old_T0 += 1; /* degradation */
+ }
+ T0 = st->old_T0;
+ T0_frac = 0;
+
+ if ((st->inBackgroundNoise != 0) && (st->voicedHangover > 4) &&
+ ((mode == MR475) || (mode == MR515) || (mode == MR59)))
+ {
+ T0 = st->T0_lagBuff;
+ }
+ }
+
+ Pred_lt_3or6(st->exc, T0, T0_frac, L_SUBFR, 1, pOverflow);
+ }
+ else
+ {
+ Dec_lag6(index, PIT_MIN_MR122,
+ PIT_MAX, pit_flag, &T0, &T0_frac, pOverflow);
+
+
+ if (!(bfi == 0 && (pit_flag == 0 || index < 61)))
+ {
+ st->T0_lagBuff = T0;
+ T0 = st->old_T0;
+ T0_frac = 0;
+ }
+
+ Pred_lt_3or6(st->exc, T0, T0_frac, L_SUBFR, 0, pOverflow);
+ }
+
+ /*-------------------------------------------------------*
+ * - (MR122 only: Decode pitch gain.) *
+ * - Decode innovative codebook. *
+ * - set pitch sharpening factor *
+ *-------------------------------------------------------*/
+ if ((mode == MR475) || (mode == MR515))
+ { /* MR475, MR515 */
+ index = *parm++; /* index of position */
+ i = *parm++; /* signs */
+
+ decode_2i40_9bits(subfrNr, i, index, st->common_amr_tbls.startPos_ptr, code, pOverflow);
+
+ L_temp = (Word32)st->sharp << 1;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ pit_sharp = (st->sharp > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ pit_sharp = (Word16) L_temp;
+ }
+ }
+ else if (mode == MR59)
+ { /* MR59 */
+ index = *parm++; /* index of position */
+ i = *parm++; /* signs */
+
+ decode_2i40_11bits(i, index, code);
+
+ L_temp = (Word32)st->sharp << 1;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ pit_sharp = (st->sharp > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ pit_sharp = (Word16) L_temp;
+ }
+ }
+ else if (mode == MR67)
+ { /* MR67 */
+ index = *parm++; /* index of position */
+ i = *parm++; /* signs */
+
+ decode_3i40_14bits(i, index, code);
+
+ L_temp = (Word32)st->sharp << 1;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ pit_sharp = (st->sharp > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ pit_sharp = (Word16) L_temp;
+ }
+ }
+ else if (mode <= MR795)
+ { /* MR74, MR795 */
+ index = *parm++; /* index of position */
+ i = *parm++; /* signs */
+
+ decode_4i40_17bits(i, index, st->common_amr_tbls.dgray_ptr, code);
+
+ L_temp = (Word32)st->sharp << 1;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ pit_sharp = (st->sharp > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ pit_sharp = (Word16) L_temp;
+ }
+ }
+ else if (mode == MR102)
+ { /* MR102 */
+ dec_8i40_31bits(parm, code, pOverflow);
+ parm += 7;
+
+ L_temp = (Word32)st->sharp << 1;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ pit_sharp = (st->sharp > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ pit_sharp = (Word16) L_temp;
+ }
+ }
+ else
+ { /* MR122 */
+ index = *parm++;
+
+ if (bfi != 0)
+ {
+ ec_gain_pitch(
+ &(st->ec_gain_p_st),
+ st->state,
+ &gain_pit,
+ pOverflow);
+ }
+ else
+ {
+ gain_pit = d_gain_pitch(mode, index, st->common_amr_tbls.qua_gain_pitch_ptr);
+ }
+ ec_gain_pitch_update(
+ &(st->ec_gain_p_st),
+ bfi,
+ st->prev_bf,
+ &gain_pit,
+ pOverflow);
+
+
+ dec_10i40_35bits(parm, code, st->common_amr_tbls.dgray_ptr);
+ parm += 10;
+
+ /* pit_sharp = gain_pit; */
+ /* if (pit_sharp > 1.0) pit_sharp = 1.0; */
+
+ L_temp = (Word32)gain_pit << 1;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ pit_sharp = (gain_pit > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ pit_sharp = (Word16) L_temp;
+ }
+ }
+ /*-------------------------------------------------------*
+ * - Add the pitch contribution to code[]. *
+ *-------------------------------------------------------*/
+ for (i = T0; i < L_SUBFR; i++)
+ {
+ temp = mult(*(code + i - T0), pit_sharp, pOverflow);
+ *(code + i) = add_16(*(code + i), temp, pOverflow);
+
+ }
+
+ /*------------------------------------------------------------*
+ * - Decode codebook gain (MR122) or both pitch *
+ * gain and codebook gain (all others) *
+ * - Update pitch sharpening "sharp" with quantized gain_pit *
+ *------------------------------------------------------------*/
+ if (mode == MR475)
+ {
+ /* read and decode pitch and code gain */
+
+ if (evenSubfr != 0)
+ {
+ index_mr475 = *parm++; /* index of gain(s) */
+ }
+
+ if (bfi == 0)
+ {
+ Dec_gain(
+ &(st->pred_state),
+ mode,
+ index_mr475,
+ code,
+ evenSubfr,
+ &gain_pit,
+ &gain_code,
+ &(st->common_amr_tbls),
+ pOverflow);
+ }
+ else
+ {
+ ec_gain_pitch(
+ &(st->ec_gain_p_st),
+ st->state,
+ &gain_pit,
+ pOverflow);
+
+ ec_gain_code(
+ &(st->ec_gain_c_st),
+ &(st->pred_state),
+ st->state,
+ &gain_code,
+ pOverflow);
+ }
+ ec_gain_pitch_update(
+ &st->ec_gain_p_st,
+ bfi,
+ st->prev_bf,
+ &gain_pit,
+ pOverflow);
+
+ ec_gain_code_update(
+ &st->ec_gain_c_st,
+ bfi,
+ st->prev_bf,
+ &gain_code,
+ pOverflow);
+
+ pit_sharp = gain_pit;
+
+ if (pit_sharp > SHARPMAX)
+ {
+ pit_sharp = SHARPMAX;
+ }
+
+ }
+ else if ((mode <= MR74) || (mode == MR102))
+ {
+ /* read and decode pitch and code gain */
+ index = *parm++; /* index of gain(s) */
+
+ if (bfi == 0)
+ {
+ Dec_gain(
+ &(st->pred_state),
+ mode,
+ index,
+ code,
+ evenSubfr,
+ &gain_pit,
+ &gain_code,
+ &(st->common_amr_tbls),
+ pOverflow);
+ }
+ else
+ {
+ ec_gain_pitch(
+ &(st->ec_gain_p_st),
+ st->state,
+ &gain_pit,
+ pOverflow);
+
+ ec_gain_code(
+ &(st->ec_gain_c_st),
+ &(st->pred_state),
+ st->state,
+ &gain_code,
+ pOverflow);
+ }
+
+ ec_gain_pitch_update(
+ &(st->ec_gain_p_st),
+ bfi,
+ st->prev_bf,
+ &gain_pit,
+ pOverflow);
+
+ ec_gain_code_update(
+ &(st->ec_gain_c_st),
+ bfi,
+ st->prev_bf,
+ &gain_code,
+ pOverflow);
+
+ pit_sharp = gain_pit;
+
+ if (pit_sharp > SHARPMAX)
+ {
+ pit_sharp = SHARPMAX;
+ }
+
+ if (mode == MR102)
+ {
+ if (st->old_T0 > (L_SUBFR + 5))
+ {
+ if (pit_sharp < 0)
+ {
+ pit_sharp = ~((~pit_sharp) >> 2);
+ }
+ else
+ {
+ pit_sharp = pit_sharp >> 2;
+ }
+ }
+ }
+ }
+ else
+ {
+ /* read and decode pitch gain */
+ index = *parm++; /* index of gain(s) */
+
+ if (mode == MR795)
+ {
+ /* decode pitch gain */
+ if (bfi != 0)
+ {
+ ec_gain_pitch(
+ &(st->ec_gain_p_st),
+ st->state,
+ &gain_pit,
+ pOverflow);
+ }
+ else
+ {
+ gain_pit = d_gain_pitch(mode, index, st->common_amr_tbls.qua_gain_pitch_ptr);
+ }
+ ec_gain_pitch_update(
+ &(st->ec_gain_p_st),
+ bfi,
+ st->prev_bf,
+ &gain_pit,
+ pOverflow);
+
+ /* read and decode code gain */
+ index = *parm++;
+
+ if (bfi == 0)
+ {
+ d_gain_code(
+ &(st->pred_state),
+ mode,
+ index,
+ code,
+ st->common_amr_tbls.qua_gain_code_ptr,
+ &gain_code,
+ pOverflow);
+ }
+ else
+ {
+ ec_gain_code(
+ &(st->ec_gain_c_st),
+ &(st->pred_state),
+ st->state,
+ &gain_code,
+ pOverflow);
+ }
+
+ ec_gain_code_update(
+ &(st->ec_gain_c_st),
+ bfi,
+ st->prev_bf,
+ &gain_code,
+ pOverflow);
+
+ pit_sharp = gain_pit;
+
+ if (pit_sharp > SHARPMAX)
+ {
+ pit_sharp = SHARPMAX;
+ }
+ }
+ else
+ { /* MR122 */
+
+ if (bfi == 0)
+ {
+ d_gain_code(
+ &(st->pred_state),
+ mode,
+ index,
+ code,
+ st->common_amr_tbls.qua_gain_code_ptr,
+ &gain_code,
+ pOverflow);
+ }
+ else
+ {
+ ec_gain_code(
+ &(st->ec_gain_c_st),
+ &(st->pred_state),
+ st->state,
+ &gain_code,
+ pOverflow);
+ }
+
+ ec_gain_code_update(
+ &(st->ec_gain_c_st),
+ bfi,
+ st->prev_bf,
+ &gain_code,
+ pOverflow);
+
+ pit_sharp = gain_pit;
+ }
+ }
+
+ /* store pitch sharpening for next subframe */
+ /* (for modes which use the previous pitch gain for */
+ /* pitch sharpening in the search phase) */
+ /* do not update sharpening in even subframes for MR475 */
+ if ((mode != MR475) || (evenSubfr == 0))
+ {
+ st->sharp = gain_pit;
+
+ if (st->sharp > SHARPMAX)
+ {
+ st->sharp = SHARPMAX;
+ }
+ }
+
+ pit_sharp = shl(pit_sharp, 1, pOverflow);
+
+ if (pit_sharp > 16384)
+ {
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ temp = mult(st->exc[i], pit_sharp, pOverflow);
+ L_temp = L_mult(temp, gain_pit, pOverflow);
+
+ if (mode == MR122)
+ {
+ if (L_temp < 0)
+ {
+ L_temp = ~((~L_temp) >> 1);
+ }
+ else
+ {
+ L_temp = L_temp >> 1;
+ }
+ }
+ *(excp + i) = pv_round(L_temp, pOverflow);
+ }
+ }
+
+ /*-------------------------------------------------------*
+ * - Store list of LTP gains needed in the source *
+ * characteristic detector (SCD) *
+ *-------------------------------------------------------*/
+
+ if (bfi == 0)
+ {
+ for (i = 0; i < 8; i++)
+ {
+ st->ltpGainHistory[i] = st->ltpGainHistory[i+1];
+ }
+ st->ltpGainHistory[8] = gain_pit;
+ }
+
+ /*-------------------------------------------------------*
+ * - Limit gain_pit if in background noise and BFI *
+ * for MR475, MR515, MR59 *
+ *-------------------------------------------------------*/
+
+
+ if ((st->prev_bf != 0 || bfi != 0) && st->inBackgroundNoise != 0 &&
+ ((mode == MR475) || (mode == MR515) || (mode == MR59)))
+ {
+
+ if (gain_pit > 12288) /* if (gain_pit > 0.75) in Q14*/
+ {
+ gain_pit = ((gain_pit - 12288) >> 1) + 12288;
+ /* gain_pit = (gain_pit-0.75)/2.0 + 0.75; */
+ }
+
+ if (gain_pit > 14745) /* if (gain_pit > 0.90) in Q14*/
+ {
+ gain_pit = 14745;
+ }
+ }
+
+ /*-------------------------------------------------------*
+ * Calculate CB mixed gain *
+ *-------------------------------------------------------*/
+ Int_lsf(
+ prev_lsf,
+ st->lsfState.past_lsf_q,
+ i_subfr,
+ lsf_i,
+ pOverflow);
+
+ gain_code_mix =
+ Cb_gain_average(
+ &(st->Cb_gain_averState),
+ mode,
+ gain_code,
+ lsf_i,
+ st->lsp_avg_st.lsp_meanSave,
+ bfi,
+ st->prev_bf,
+ pdfi,
+ st->prev_pdf,
+ st->inBackgroundNoise,
+ st->voicedHangover,
+ pOverflow);
+
+ /* make sure that MR74, MR795, MR122 have original code_gain*/
+ if ((mode > MR67) && (mode != MR102))
+ /* MR74, MR795, MR122 */
+ {
+ gain_code_mix = gain_code;
+ }
+
+ /*-------------------------------------------------------*
+ * - Find the total excitation. *
+ * - Find synthesis speech corresponding to st->exc[]. *
+ *-------------------------------------------------------*/
+ if (mode <= MR102) /* MR475, MR515, MR59, MR67, MR74, MR795, MR102*/
+ {
+ pitch_fac = gain_pit;
+ tmp_shift = 1;
+ }
+ else /* MR122 */
+ {
+ if (gain_pit < 0)
+ {
+ pitch_fac = ~((~gain_pit) >> 1);
+ }
+ else
+ {
+ pitch_fac = gain_pit >> 1;
+ }
+ tmp_shift = 2;
+ }
+
+ /* copy unscaled LTP excitation to exc_enhanced (used in phase
+ * dispersion below) and compute total excitation for LTP feedback
+ */
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ exc_enhanced[i] = st->exc[i];
+
+ /* st->exc[i] = gain_pit*st->exc[i] + gain_code*code[i]; */
+ L_temp = L_mult(st->exc[i], pitch_fac, pOverflow);
+ /* 12.2: Q0 * Q13 */
+ /* 7.4: Q0 * Q14 */
+ L_temp = L_mac(L_temp, code[i], gain_code, pOverflow);
+ /* 12.2: Q12 * Q1 */
+ /* 7.4: Q13 * Q1 */
+ L_temp = L_shl(L_temp, tmp_shift, pOverflow); /* Q16 */
+ st->exc[i] = pv_round(L_temp, pOverflow);
+ }
+
+ /*-------------------------------------------------------*
+ * - Adaptive phase dispersion *
+ *-------------------------------------------------------*/
+ ph_disp_release(&(st->ph_disp_st)); /* free phase dispersion adaption */
+
+
+ if (((mode == MR475) || (mode == MR515) || (mode == MR59)) &&
+ (st->voicedHangover > 3) && (st->inBackgroundNoise != 0) &&
+ (bfi != 0))
+ {
+ ph_disp_lock(&(st->ph_disp_st)); /* Always Use full Phase Disp. */
+ } /* if error in bg noise */
+
+ /* apply phase dispersion to innovation (if enabled) and
+ compute total excitation for synthesis part */
+ ph_disp(
+ &(st->ph_disp_st),
+ mode,
+ exc_enhanced,
+ gain_code_mix,
+ gain_pit,
+ code,
+ pitch_fac,
+ tmp_shift,
+ &(st->common_amr_tbls),
+ pOverflow);
+
+ /*-------------------------------------------------------*
+ * - The Excitation control module are active during BFI.*
+ * - Conceal drops in signal energy if in bg noise. *
+ *-------------------------------------------------------*/
+ L_temp = 0;
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ L_temp = L_mac(L_temp, *(exc_enhanced + i), *(exc_enhanced + i), pOverflow);
+ }
+
+ /* excEnergy = sqrt(L_temp) in Q0 */
+ if (L_temp < 0)
+ {
+ L_temp = ~((~L_temp) >> 1);
+ }
+ else
+ {
+ L_temp = L_temp >> 1;
+ }
+
+ L_temp = sqrt_l_exp(L_temp, &temp, pOverflow);
+ /* To cope with 16-bit and scaling in ex_ctrl() */
+ L_temp = L_shr(L_temp, (Word16)((temp >> 1) + 15), pOverflow);
+ if (L_temp < 0)
+ {
+ excEnergy = (Word16)(~((~L_temp) >> 2));
+ }
+ else
+ {
+ excEnergy = (Word16)(L_temp >> 2);
+ }
+
+ if (((mode == MR475) || (mode == MR515) || (mode == MR59)) &&
+ (st->voicedHangover > 5) && (st->inBackgroundNoise != 0) &&
+ (st->state < 4) &&
+ ((pdfi != 0 && st->prev_pdf != 0) || bfi != 0 || st->prev_bf != 0))
+ {
+ carefulFlag = 0;
+
+ if (pdfi != 0 && bfi == 0)
+ {
+ carefulFlag = 1;
+ }
+
+ Ex_ctrl(exc_enhanced,
+ excEnergy,
+ st->excEnergyHist,
+ st->voicedHangover,
+ st->prev_bf,
+ carefulFlag, pOverflow);
+ }
+
+ if (!((st->inBackgroundNoise != 0) && (bfi != 0 || st->prev_bf != 0) &&
+ (st->state < 4)))
+ {
+ /* Update energy history for all modes */
+ for (i = 0; i < 8; i++)
+ {
+ st->excEnergyHist[i] = st->excEnergyHist[i+1];
+ }
+ st->excEnergyHist[8] = excEnergy;
+ }
+ /*-------------------------------------------------------*
+ * Excitation control module end. *
+ *-------------------------------------------------------*/
+ if (pit_sharp > 16384)
+ {
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ *(excp + i) = add_16(*(excp + i), *(exc_enhanced + i), pOverflow);
+
+ }
+ agc2(exc_enhanced, excp, L_SUBFR, pOverflow);
+ *pOverflow = 0;
+ Syn_filt(Az, excp, &synth[i_subfr], L_SUBFR,
+ st->mem_syn, 0);
+ }
+ else
+ {
+ *pOverflow = 0;
+ Syn_filt(Az, exc_enhanced, &synth[i_subfr], L_SUBFR,
+ st->mem_syn, 0);
+ }
+
+ if (*pOverflow != 0) /* Test for overflow */
+ {
+ for (i = PIT_MAX + L_INTERPOL + L_SUBFR - 1; i >= 0; i--)
+ {
+ if (st->old_exc[i] < 0)
+ {
+ st->old_exc[i] = ~((~st->old_exc[i]) >> 2);
+ }
+ else
+ {
+ st->old_exc[i] = st->old_exc[i] >> 2;
+ }
+
+ }
+
+ for (i = L_SUBFR - 1; i >= 0; i--)
+ {
+ if (*(exc_enhanced + i) < 0)
+ {
+ *(exc_enhanced + i) = ~((~(*(exc_enhanced + i))) >> 2);
+ }
+ else
+ {
+ *(exc_enhanced + i) = *(exc_enhanced + i) >> 2;
+ }
+ }
+ Syn_filt(Az, exc_enhanced, &synth[i_subfr], L_SUBFR, st->mem_syn, 1);
+ }
+ else
+ {
+ oscl_memmove((void *)st->mem_syn, &synth[i_subfr+L_SUBFR-M], M*sizeof(synth[0]));
+ }
+
+ /*--------------------------------------------------*
+ * Update signal for next frame. *
+ * -> shift to the left by L_SUBFR st->exc[] *
+ *--------------------------------------------------*/
+
+ oscl_memmove((void *)&st->old_exc[0], &st->old_exc[L_SUBFR], (PIT_MAX + L_INTERPOL)*sizeof(st->old_exc[0]));
+
+ /* interpolated LPC parameters for next subframe */
+ Az += MP1;
+
+ /* store T0 for next subframe */
+ st->old_T0 = T0;
+ }
+
+ /*-------------------------------------------------------*
+ * Call the Source Characteristic Detector which updates *
+ * st->inBackgroundNoise and st->voicedHangover. *
+ *-------------------------------------------------------*/
+
+ st->inBackgroundNoise =
+ Bgn_scd(
+ &(st->background_state),
+ &(st->ltpGainHistory[0]),
+ &(synth[0]),
+ &(st->voicedHangover),
+ pOverflow);
+
+ dtx_dec_activity_update(
+ &(st->dtxDecoderState),
+ st->lsfState.past_lsf_q,
+ synth,
+ pOverflow);
+
+ /* store bfi for next subframe */
+ st->prev_bf = bfi;
+ st->prev_pdf = pdfi;
+
+ /*--------------------------------------------------*
+ * Calculate the LSF averages on the eight *
+ * previous frames *
+ *--------------------------------------------------*/
+ lsp_avg(
+ &(st->lsp_avg_st),
+ st->lsfState.past_lsf_q,
+ pOverflow);
+
+the_end:
+ st->dtxDecoderState.dtxGlobalState = newDTXState;
+
+// return(0);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_amr.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : dec_amr.h
+ Purpose : Speech decoder routine.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef DEC_AMR_H
+#define DEC_AMR_H "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "mode.h"
+#include "dtx_dec.h"
+#include "d_plsf.h"
+#include "gc_pred.h"
+#include "ec_gains.h"
+#include "ph_disp.h"
+#include "c_g_aver.h"
+#include "bgnscd.h"
+#include "lsp_avg.h"
+#include "frame.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define EXC_ENERGY_HIST_LEN 9
+#define LTP_GAIN_HISTORY_LEN 9
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ /* Excitation vector */
+ Word16 old_exc[L_SUBFR + PIT_MAX + L_INTERPOL];
+ Word16 *exc;
+
+ /* Lsp (Line spectral pairs) */
+ /* Word16 lsp[M]; */ /* Used by CN codec */
+ Word16 lsp_old[M];
+
+ /* Filter's memory */
+ Word16 mem_syn[M];
+
+ /* pitch sharpening */
+ Word16 sharp;
+ Word16 old_T0;
+
+ /* Memories for bad frame handling */
+ Word16 prev_bf;
+ Word16 prev_pdf;
+ Word16 state;
+ Word16 excEnergyHist[EXC_ENERGY_HIST_LEN];
+
+ /* Variable holding received ltpLag, used in background noise and BFI */
+ Word16 T0_lagBuff;
+
+ /* Variables for the source characteristic detector (SCD) */
+ Word16 inBackgroundNoise;
+ Word16 voicedHangover;
+ Word16 ltpGainHistory[LTP_GAIN_HISTORY_LEN];
+
+ Bgn_scdState background_state;
+ Word16 nodataSeed;
+
+ Cb_gain_averageState Cb_gain_averState;
+ lsp_avgState lsp_avg_st;
+
+ D_plsfState lsfState;
+ ec_gain_pitchState ec_gain_p_st;
+ ec_gain_codeState ec_gain_c_st;
+ gc_predState pred_state;
+ ph_dispState ph_disp_st;
+ dtx_decState dtxDecoderState;
+ Flag overflow;
+ CommonAmrTbls common_amr_tbls;
+ } Decoder_amrState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ /*
+ * Function : Decoder_amr_init
+ * Purpose : Allocates initializes state memory
+ * Description : Stores pointer to filter status struct in *st. This
+ * pointer has to be passed to Decoder_amr in each call.
+ * Returns : 0 on success
+ */
+ Word16 Decoder_amr_init(Decoder_amrState *st);
+
+ /*
+ * Function : Decoder_amr_reset
+ * Purpose : Resets state memory
+ * Returns : 0 on success
+ */
+ Word16 Decoder_amr_reset(Decoder_amrState *st, enum Mode mode);
+
+ /*
+ * Function : Decoder_amr_exit
+ * Purpose : The memory used for state memory is freed
+ * Description : Stores NULL in *s
+ * Returns : void
+ */
+ void Decoder_amr_exit(Decoder_amrState **st);
+
+ /*
+ * Function : Decoder_amr
+ * Purpose : Speech decoder routine.
+ * Returns : 0
+ */
+ void Decoder_amr(
+ Decoder_amrState *st, /* i/o : State variables */
+ enum Mode mode, /* i : AMR mode */
+ Word16 parm[], /* i : vector of synthesis parameters
+ (PRM_SIZE) */
+ enum RXFrameType frame_type, /* i : received frame type */
+ Word16 synth[], /* o : synthesis speech (L_FRAME) */
+ Word16 A_t[] /* o : decoded LP filter in 4 subframes
+ (AZ_SIZE) */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* DEC_AMR_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_gain.cpp
+ Functions: dec_gain
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "dec_gain.h"
+#include "typedef.h"
+#include "mode.h"
+#include "cnst.h"
+#include "pow2.h"
+#include "log2.h"
+#include "gc_pred.h"
+#include "basic_op.h"
+#include "qua_gain_tbl.h"
+#include "qgain475_tab.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dec_gain
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pred_state = pointer to MA predictor state of type gc_predState
+ index = AMR mode of type enum Mode
+ code[] = pointer to innovative vector of type Word16
+ evenSubfr = Flag for even subframes of type Word16
+ pOverflow = pointer to overflow flag
+
+
+ Outputs:
+ pred_state = pointer to MA predictor state of type gc_predState
+ gain_pit = pointer to pitch gain of type Word16
+ gain_cod = pointer to code gain of type Word16
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ File : dec_gain.c
+ Purpose : Decode the pitch and codebook gains
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ agc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+
+
+
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+
+void Dec_gain(
+ gc_predState *pred_state, /* i/o: MA predictor state */
+ enum Mode mode, /* i : AMR mode */
+ Word16 index, /* i : index of quantization. */
+ Word16 code[], /* i : Innovative vector. */
+ Word16 evenSubfr, /* i : Flag for even subframes */
+ Word16 * gain_pit, /* o : Pitch gain. */
+ Word16 * gain_cod, /* o : Code gain. */
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of tbls ptrs */
+ Flag * pOverflow
+)
+{
+ const Word16 *p;
+ Word16 frac;
+ Word16 gcode0;
+ Word16 exp;
+ Word16 qua_ener;
+ Word16 qua_ener_MR122;
+ Word16 g_code;
+ Word32 L_tmp;
+ Word16 temp1;
+ Word16 temp2;
+
+ /* Read the quantized gains (table depends on mode) */
+ index = shl(index, 2, pOverflow);
+
+ if (mode == MR102 || mode == MR74 || mode == MR67)
+ {
+ p = &(common_amr_tbls->table_gain_highrates_ptr[index]);
+
+ *gain_pit = *p++;
+ g_code = *p++;
+ qua_ener_MR122 = *p++;
+ qua_ener = *p;
+ }
+ else
+ {
+ if (mode == MR475)
+ {
+ index += (1 ^ evenSubfr) << 1; /* evenSubfr is 0 or 1 */
+
+ if (index > (MR475_VQ_SIZE*4 - 2))
+ {
+ index = (MR475_VQ_SIZE * 4 - 2); /* avoid possible buffer overflow */
+ }
+
+ p = &table_gain_MR475[index];
+
+ *gain_pit = *p++;
+ g_code = *p++;
+
+ /*---------------------------------------------------------*
+ * calculate predictor update values (not stored in 4.75 *
+ * quantizer table to save space): *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * qua_ener = log2(g) *
+ * qua_ener_MR122 = 20*log10(g) *
+ *---------------------------------------------------------*/
+
+ /* Log2(x Q12) = log2(x) + 12 */
+ temp1 = g_code;
+ Log2(temp1, &exp, &frac, pOverflow);
+ exp -= 12;
+
+ temp1 = shr_r(frac, 5, pOverflow);
+ temp2 = shl(exp, 10, pOverflow);
+ qua_ener_MR122 = add_16(temp1, temp2, pOverflow);
+
+ /* 24660 Q12 ~= 6.0206 = 20*log10(2) */
+ L_tmp = Mpy_32_16(exp, frac, 24660, pOverflow);
+ L_tmp = L_shl(L_tmp, 13, pOverflow);
+ qua_ener = pv_round(L_tmp, pOverflow);
+ /* Q12 * Q0 = Q13 -> Q10 */
+ }
+ else
+ {
+ p = &(common_amr_tbls->table_gain_lowrates_ptr[index]);
+
+ *gain_pit = *p++;
+ g_code = *p++;
+ qua_ener_MR122 = *p++;
+ qua_ener = *p;
+ }
+ }
+
+ /*-------------------------------------------------------------------*
+ * predict codebook gain *
+ * ~~~~~~~~~~~~~~~~~~~~~ *
+ * gc0 = Pow2(int(d)+frac(d)) *
+ * = 2^exp + 2^frac *
+ * *
+ * gcode0 (Q14) = 2^14*2^frac = gc0 * 2^(14-exp) *
+ *-------------------------------------------------------------------*/
+
+ gc_pred(pred_state, mode, code, &exp, &frac, NULL, NULL, pOverflow);
+
+ gcode0 = (Word16) Pow2(14, frac, pOverflow);
+
+ /*------------------------------------------------------------------*
+ * read quantized gains, update table of past quantized energies *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * st->past_qua_en(Q10) = 20 * Log10(g_fac) / constant *
+ * = Log2(g_fac) *
+ * = qua_ener *
+ * constant = 20*Log10(2) *
+ *------------------------------------------------------------------*/
+
+ L_tmp = L_mult(g_code, gcode0, pOverflow);
+ temp1 = 10 - exp;
+ L_tmp = L_shr(L_tmp, temp1, pOverflow);
+ *gain_cod = (Word16)(L_tmp >> 16);
+
+ /* update table of past quantized energies */
+
+ gc_pred_update(pred_state, qua_ener_MR122, qua_ener);
+
+ return;
+}
+
+
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_gain.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : dec_gain.h
+ Purpose : Decode the pitch and codebook gains
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _DEC_GAIN_H_
+#define _DEC_GAIN_H_
+#define dec_gain_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "gc_pred.h"
+#include "mode.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*
+ * FUNCTION: Dec_gain()
+ * PURPOSE: Decode the pitch and codebook gains
+ */
+ void Dec_gain(
+ gc_predState *pred_state, /* i/o: MA predictor state */
+ enum Mode mode, /* i : AMR mode */
+ Word16 index, /* i : index of quantization. */
+ Word16 code[], /* i : Innovative vector. */
+ Word16 evenSubfr, /* i : Flag for even subframes */
+ Word16 * gain_pit, /* o : Pitch gain. */
+ Word16 * gain_cod, /* o : Code gain. */
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of tbls ptrs */
+ Flag * pOverflow
+ );
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _DEC_GAIN_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+ Filename: dec_input_format_tab.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This file contains the tables of the number of data bytes per codec mode in
+ both WMF and IF2 input formats.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] AMR Speech Codec Frame Structure, 3GPP TS 26.101 version 4.1.0 Release 4,
+ June 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "amrdecode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+ /* Table containing the number of core AMR data bytes for */
+ /* each codec mode for WMF input format(number excludes frame type byte) */
+ const Word16 WmfDecBytesPerFrame[16] =
+ {
+ 12, /* 4.75 */
+ 13, /* 5.15 */
+ 15, /* 5.90 */
+ 17, /* 6.70 */
+ 19, /* 7.40 */
+ 20, /* 7.95 */
+ 26, /* 10.2 */
+ 31, /* 12.2 */
+ 5, /* GsmAmr comfort noise */
+ 6, /* Gsm-Efr comfort noise */
+ 5, /* IS-641 comfort noise */
+ 5, /* Pdc-Efr comfort noise */
+ 0, /* future use */
+ 0, /* future use */
+ 0, /* future use */
+ 0 /* No transmission */
+ };
+
+ /* Table containing the number of core AMR data bytes for */
+ /* each codec mode for IF2 input format. */
+ const Word16 If2DecBytesPerFrame[16] =
+ {
+ 13, /* 4.75 */
+ 14, /* 5.15 */
+ 16, /* 5.90 */
+ 18, /* 6.70 */
+ 19, /* 7.40 */
+ 21, /* 7.95 */
+ 26, /* 10.2 */
+ 31, /* 12.2 */
+ 6, /* GsmAmr comfort noise */
+ 6, /* Gsm-Efr comfort noise */
+ 6, /* IS-641 comfort noise */
+ 6, /* Pdc-Efr comfort noise */
+ 0, /* future use */
+ 0, /* future use */
+ 0, /* future use */
+ 1 /* No transmission */
+ };
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; Define all local variables
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Function body here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Return nothing or data or data pointer
+----------------------------------------------------------------------------*/
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_lag3.cpp
+ Functions: Dec_lag3
+
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ index -- Word16 -- received pitch index
+ t0_min -- Word16 -- minimum of search range
+ t0_max -- Word16 -- maximum of search range
+ i_subfr -- Word16 -- subframe flag
+ T0_prev -- Word16 -- integer pitch delay of last subframe
+ used in 2nd and 4th subframes
+ flag4 -- Word16 -- flag for encoding with 4 bits
+
+ Outputs:
+
+ T0 -- Pointer to type Word16 -- integer part of pitch lag
+ T0_frac -- Pointer to type Word16 -- fractional part of pitch lag
+ pOverflow -- Pointer to type Flag -- Flag set when overflow occurs
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+
+ )
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Decoding of fractional pitch lag with 1/3 resolution.
+ Extract the integer and fraction parts of the pitch lag from
+ the received adaptive codebook index.
+
+ See "Enc_lag3.c" for more details about the encoding procedure.
+
+ The fractional lag in 1st and 3rd subframes is encoded with 8 bits
+ while that in 2nd and 4th subframes is relatively encoded with 4, 5
+ and 6 bits depending on the mode.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dec_lag3.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "dec_lag3.h"
+#include "typedef.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void Dec_lag3(Word16 index, /* i : received pitch index */
+ Word16 t0_min, /* i : minimum of search range */
+ Word16 t0_max, /* i : maximum of search range */
+ Word16 i_subfr, /* i : subframe flag */
+ Word16 T0_prev, /* i : integer pitch delay of last subframe
+ used in 2nd and 4th subframes */
+ Word16 * T0, /* o : integer part of pitch lag */
+ Word16 * T0_frac, /* o : fractional part of pitch lag */
+ Word16 flag4, /* i : flag for encoding with 4 bits */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ )
+{
+ Word16 i;
+ Word16 tmp_lag;
+
+ if (i_subfr == 0) /* if 1st or 3rd subframe */
+ {
+
+ if (index < 197)
+ {
+
+ tmp_lag = index + 2;
+
+ tmp_lag =
+ mult(
+ tmp_lag,
+ 10923,
+ pOverflow);
+
+ i = tmp_lag + 19;
+
+ *T0 = i;
+
+ /* i = 3 * (*T0) */
+
+ i <<= 1;
+ i += *T0;
+
+ tmp_lag = index - i;
+
+ *T0_frac = tmp_lag + 58;
+ }
+ else
+ {
+ *T0 = index - 112;
+
+ *T0_frac = 0;
+ }
+
+ }
+ else
+ { /* 2nd or 4th subframe */
+
+ if (flag4 == 0)
+ {
+
+ /* 'normal' decoding: either with 5 or 6 bit resolution */
+
+ i = index + 2;
+
+ i = ((Word32) i * 10923) >> 15;
+
+
+ i -= 1;
+
+ *T0 = i + t0_min;
+
+ /* i = 3* (*T0) */
+ i = i + (i << 1);
+
+ tmp_lag = index - 2;
+
+ *T0_frac = tmp_lag - i;
+ }
+ else
+ {
+
+ /* decoding with 4 bit resolution */
+
+ tmp_lag = T0_prev;
+
+ i =
+ sub(
+ tmp_lag,
+ t0_min,
+ pOverflow);
+
+ if (i > 5)
+ {
+ tmp_lag = t0_min + 5;
+ }
+
+ i = t0_max - tmp_lag;
+
+ if (i > 4)
+ {
+ tmp_lag = t0_max - 4;
+ }
+
+ if (index < 4)
+ {
+ i = tmp_lag - 5;
+
+ *T0 = i + index;
+
+ *T0_frac = 0;
+ }
+ else
+ {
+ /* 4 >= index < 12 */
+ if (index < 12)
+ {
+ i = index - 5;
+ i = ((Word32) i * 10923) >> 15;
+
+
+ i--;
+
+ *T0 = i + tmp_lag;
+
+ i = i + (i << 1);
+
+ tmp_lag = index - 9;
+
+ *T0_frac = tmp_lag - i;
+ }
+ else
+ {
+ i = index - 12;
+
+ i = i + tmp_lag;
+
+ *T0 = i + 1;
+
+ *T0_frac = 0;
+ }
+ }
+
+ } /* end if (decoding with 4 bit resolution) */
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_lag3.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the dec_lag3.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef dec_lag3_h
+#define dec_lag3_h "$Id $"
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void Dec_lag3(Word16 index, /* i : received pitch index */
+ Word16 T0_min, /* i : minimum of search range */
+ Word16 T0_max, /* i : maximum of search range */
+ Word16 i_subfr, /* i : subframe flag */
+ Word16 T0_prev, /* i : integer pitch delay of last subframe
+ used in 2nd and 4th subframes */
+ Word16 * T0, /* o : integer part of pitch lag */
+ Word16 * T0_frac, /* o : fractional part of pitch lag */
+ Word16 flag4, /* i : flag for encoding with 4 bits */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _DEC_LAG_3_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_lag6.cpp
+ Functions: Dec_lag6
+
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ index -- Word16 -- received pitch index
+ pit_min -- Word16 -- minimum pitch lag
+ pit_max -- Word16 -- maximum pitch lag
+ i_subfr -- Word16 -- subframe flag
+ T0 -- Pointer to type Word16 -- integer part of pitch lag
+
+ Outputs:
+
+ T0 -- Pointer to type Word16 -- integer part of pitch lag
+ T0_frac -- Pointer to type Word16 -- fractional part of pitch lag
+ pOverflow -- Pointer to type Flag -- Flag set when overflow occurs
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Decoding of fractional pitch lag with 1/6 resolution.
+ Extract the integer and fraction parts of the pitch lag from
+ the received adaptive codebook index.
+
+ See "Enc_lag6.c" for more details about the encoding procedure.
+
+ The fractional lag in 1st and 3rd subframes is encoded with 9 bits
+ while that in 2nd and 4th subframes is relatively encoded with 6 bits.
+ Note that in relative encoding only 61 values are used. If the
+ decoder receives 61, 62, or 63 as the relative pitch index, it means
+ that a transmission error occurred. In this case, the pitch lag from
+ previous subframe (actually from previous frame) is used.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dec_lag6.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "dec_lag6.h"
+#include "typedef.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void Dec_lag6(
+ Word16 index, /* input : received pitch index */
+ Word16 pit_min, /* input : minimum pitch lag */
+ Word16 pit_max, /* input : maximum pitch lag */
+ Word16 i_subfr, /* input : subframe flag */
+ Word16 *T0, /* in/out: integer part of pitch lag */
+ Word16 *T0_frac, /* output: fractional part of pitch lag */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 T0_min;
+ Word16 T0_max;
+ Word16 k;
+
+ if (i_subfr == 0) /* if 1st or 3rd subframe */
+ {
+ if (index < 463)
+ {
+ /* T0 = (index+5)/6 + 17 */
+ i = index + 5;
+ i = ((Word32) i * 5462) >> 15;
+
+
+ i += 17;
+
+ *T0 = i;
+
+ /* i = 3* (*T0) */
+
+ i <<= 1;
+ i += *T0;
+
+ /* *T0_frac = index - T0*6 + 105 */
+
+ i <<= 1;
+
+ i = index - i;
+
+ *T0_frac = i + 105;
+ }
+ else
+ {
+ *T0 = index - 368;
+
+ *T0_frac = 0;
+ }
+ }
+ else /* second or fourth subframe */
+ {
+ /* find T0_min and T0_max for 2nd (or 4th) subframe */
+
+ T0_min = *T0 - 5;
+
+ if (T0_min < pit_min)
+ {
+ T0_min = pit_min;
+ }
+
+ T0_max = T0_min + 9;
+
+ if (T0_max > pit_max)
+ {
+ T0_max = pit_max;
+
+ T0_min = T0_max - 9;
+ }
+
+ /* i = (index+5)/6 - 1 */
+ i = index + 5;
+
+ i = ((Word32) i * 5462) >> 15;
+
+
+ i -= 1;
+
+ *T0 = i + T0_min;
+
+ /* i = 3* (*T0) */
+
+ i = i + (i << 1);
+
+ i <<= 1;
+
+ k = index - 3;
+
+ *T0_frac = k - i;
+ }
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_lag6.h
+
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the dec_lag6.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef dec_lag6_h
+#define dec_lag6_h "$Id $"
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void Dec_lag6(
+ Word16 index, /* input : received pitch index */
+ Word16 pit_min, /* input : minimum pitch lag */
+ Word16 pit_max, /* input : maximum pitch lag */
+ Word16 i_subfr, /* input : subframe flag */
+ Word16 *T0, /* in/out: integer part of pitch lag */
+ Word16 *T0_frac, /* output: fractional part of pitch lag */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _DEC_LAG_6_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+#include "decoder_gsm_amr.h"
+#include "sp_dec.h"
+#include "amrdecode.h"
+#include "pvamrnbdecoder_api.h"
+
+// Use default DLL entry point
+#include "oscl_dll.h"
+#include "oscl_error_codes.h"
+#include "oscl_exception.h"
+#include "oscl_mem.h"
+
+#define KCAI_CODEC_INIT_FAILURE -1
+
+OSCL_DLL_ENTRY_POINT_DEFAULT()
+
+OSCL_EXPORT_REF CDecoder_AMR_NB *CDecoder_AMR_NB::NewL()
+{
+ CDecoder_AMR_NB *dec = new CDecoder_AMR_NB;
+ if (dec == NULL)
+ OSCL_LEAVE(OsclErrNoMemory);
+ else
+ dec->ConstructL();
+ return dec;
+}
+
+OSCL_EXPORT_REF void CDecoder_AMR_NB::ConstructL()
+{
+ iDecState = NULL;
+}
+
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_NB
+
+ ~CDecoder_AMR_NB
+
+ Empty decoder destructor.
+
+ Parameters: none
+
+ Return Values: none
+
+-----------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF CDecoder_AMR_NB::~CDecoder_AMR_NB()
+{
+ if (iDecState)
+ oscl_free(iDecState);
+ iDecState = NULL;
+
+ if (iInputBuf)
+ {
+ OSCL_ARRAY_DELETE(iInputBuf);
+ iInputBuf = NULL;
+ }
+
+ if (iOutputBuf)
+ {
+ OSCL_ARRAY_DELETE(iOutputBuf);
+ iOutputBuf = NULL;
+ }
+}
+
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_NB
+
+ StartL
+
+ Start decoder object. Initialize codec status.
+
+ Parameters: none
+
+ Return Values: status
+
+-----------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF int32 CDecoder_AMR_NB::StartL(tPVAmrDecoderExternal * pExt,
+ bool aAllocateInputBuffer,
+ bool aAllocateOutputBuffer)
+{
+
+ if (aAllocateInputBuffer)
+ {
+ iInputBuf = OSCL_ARRAY_NEW(int16, MAX_NUM_PACKED_INPUT_BYTES);
+ if (iInputBuf == NULL)
+ {
+ return KCAI_CODEC_INIT_FAILURE;
+ }
+ }
+ else
+ {
+ iInputBuf = NULL;
+ }
+ pExt->pInputBuffer = (uint8 *)iInputBuf;
+
+ if (aAllocateOutputBuffer)
+ {
+ iOutputBuf = OSCL_ARRAY_NEW(int16, L_FRAME);
+
+ if (iOutputBuf == NULL)
+ {
+ return KCAI_CODEC_INIT_FAILURE;
+ }
+ }
+ else
+ {
+ iOutputBuf = NULL;
+ }
+ pExt->pOutputBuffer = iOutputBuf;
+
+ pExt->samplingRate = 8000;
+ pExt->desiredChannels = 1;
+
+ pExt->reset_flag = 0;
+ pExt->reset_flag_old = 1;
+ pExt->mode_old = 0;
+
+ return GSMInitDecode(&iDecState, (int8*)"Decoder");
+}
+
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_NB
+
+ ExecuteL
+
+ Execute decoder object. Read one encoded speech frame from the input
+ stream, decode it and write the decoded frame to output stream.
+
+ Parameters:
+
+ Return Values: status
+
+
+-----------------------------------------------------------------------------
+*/
+
+OSCL_EXPORT_REF int32 CDecoder_AMR_NB::ExecuteL(tPVAmrDecoderExternal * pExt)
+{
+
+
+ if (pExt->input_format == WMF)
+ pExt->input_format = MIME_IETF;
+
+ return AMRDecode(iDecState,
+ (enum Frame_Type_3GPP)pExt->mode,
+ (uint8*) pExt->pInputBuffer,
+ (int16*) pExt->pOutputBuffer,
+ pExt->input_format);
+
+}
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_NB
+
+ StopL
+
+ Stop decoder object. Flush out last frames, if necessary.
+
+ Parameters: none
+
+ Return Values: none
+
+-----------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF void CDecoder_AMR_NB::StopL()
+{
+}
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_NB
+
+ ResetDecoderL
+
+ Stop decoder object. Reset decoder.
+
+ Parameters: none
+
+ Return Values: status
+
+-----------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF int32 CDecoder_AMR_NB::ResetDecoderL()
+{
+ return Speech_Decode_Frame_reset(iDecState);
+}
+
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_NB
+
+ TerminateDecoderL
+
+ Stop decoder object. close decoder.
+
+ Parameters: none
+
+ Return Values: none
+
+-----------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF void CDecoder_AMR_NB::TerminateDecoderL()
+{
+ GSMDecodeFrameExit(&iDecState);
+ iDecState = NULL;
+
+ if (iInputBuf)
+ {
+ OSCL_ARRAY_DELETE(iInputBuf);
+ iInputBuf = NULL;
+ }
+
+ if (iOutputBuf)
+ {
+ OSCL_ARRAY_DELETE(iOutputBuf);
+ iOutputBuf = NULL;
+ }
+}
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dtx_dec.cpp
+ Functions:
+ dtx_dec_reset
+ dtx_dec
+ dtx_dec_activity_update
+ rx_dtx_handler
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ These modules decode the comfort noise when in DTX.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "dtx_dec.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "set_zero.h"
+#include "mode.h"
+#include "log2.h"
+#include "lsp_az.h"
+#include "pow2.h"
+#include "a_refl.h"
+#include "b_cn_cod.h"
+#include "syn_filt.h"
+#include "lsp_lsf.h"
+#include "reorder.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define PN_INITIAL_SEED 0x70816958L /* Pseudo noise generator seed value */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/***************************************************
+ * Scaling factors for the lsp variability operation *
+ ***************************************************/
+static const Word16 lsf_hist_mean_scale[M] =
+{
+ 20000,
+ 20000,
+ 20000,
+ 20000,
+ 20000,
+ 18000,
+ 16384,
+ 8192,
+ 0,
+ 0
+};
+
+/*************************************************
+ * level adjustment for different modes Q11 *
+ *************************************************/
+static const Word16 dtx_log_en_adjust[9] =
+{
+ -1023, /* MR475 */
+ -878, /* MR515 */
+ -732, /* MR59 */
+ -586, /* MR67 */
+ -440, /* MR74 */
+ -294, /* MR795 */
+ -148, /* MR102 */
+ 0, /* MR122 */
+ 0, /* MRDTX */
+};
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dtx_dec_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type dtx_decState
+
+ Outputs:
+ Structure pointed to by st is initialized to a set of initial values.
+
+ Returns:
+ return_value = 0 if memory was successfully initialized,
+ otherwise returns -1 (int)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Reset of state memory for dtx_dec.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dtx_dec.c, UMTS GSM AMR speech codec, R99 - Version 3.3.0, December 12, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int dtx_dec_reset (dtx_decState *st)
+{
+ int i;
+
+ if (st == (dtx_decState *) NULL){
+ fprintf(stderr, "dtx_dec_reset: invalid parameter\n");
+ return -1;
+ }
+
+ st->since_last_sid = 0;
+ st->true_sid_period_inv = (1 << 13);
+
+ st->log_en = 3500;
+ st->old_log_en = 3500;
+ // low level noise for better performance in DTX handover cases
+
+ st->L_pn_seed_rx = PN_INITIAL_SEED;
+
+ // Initialize state->lsp [] and state->lsp_old []
+ Copy(lsp_init_data, &st->lsp[0], M);
+ Copy(lsp_init_data, &st->lsp_old[0], M);
+
+ st->lsf_hist_ptr = 0;
+ st->log_pg_mean = 0;
+ st->log_en_hist_ptr = 0;
+
+ // initialize decoder lsf history
+ Copy(mean_lsf, &st->lsf_hist[0], M);
+
+ for (i = 1; i < DTX_HIST_SIZE; i++)
+ {
+ Copy(&st->lsf_hist[0], &st->lsf_hist[M*i], M);
+ }
+ Set_zero(st->lsf_hist_mean, M*DTX_HIST_SIZE);
+
+ // initialize decoder log frame energy
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ st->log_en_hist[i] = st->log_en;
+ }
+
+ st->log_en_adjust = 0;
+
+ st->dtxHangoverCount = DTX_HANG_CONST;
+ st->decAnaElapsedCount = 32767;
+
+ st->sid_frame = 0;
+ st->valid_data = 0;
+ st->dtxHangoverAdded = 0;
+
+ st->dtxGlobalState = DTX;
+ st->data_updated = 0;
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 dtx_dec_reset(dtx_decState *st)
+{
+ Word16 i;
+
+ if (st == (dtx_decState *) NULL)
+ {
+ /* fprint(stderr, "dtx_dec_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ st->since_last_sid = 0;
+ st->true_sid_period_inv = (1 << 13);
+
+ st->log_en = 3500;
+ st->old_log_en = 3500;
+ /* low level noise for better performance in DTX handover cases*/
+
+ st->L_pn_seed_rx = PN_INITIAL_SEED;
+
+ /* Initialize state->lsp [] */
+ st->lsp[0] = 30000;
+ st->lsp[1] = 26000;
+ st->lsp[2] = 21000;
+ st->lsp[3] = 15000;
+ st->lsp[4] = 8000;
+ st->lsp[5] = 0;
+ st->lsp[6] = -8000;
+ st->lsp[7] = -15000;
+ st->lsp[8] = -21000;
+ st->lsp[9] = -26000;
+
+ /* Initialize state->lsp_old [] */
+ st->lsp_old[0] = 30000;
+ st->lsp_old[1] = 26000;
+ st->lsp_old[2] = 21000;
+ st->lsp_old[3] = 15000;
+ st->lsp_old[4] = 8000;
+ st->lsp_old[5] = 0;
+ st->lsp_old[6] = -8000;
+ st->lsp_old[7] = -15000;
+ st->lsp_old[8] = -21000;
+ st->lsp_old[9] = -26000;
+
+ st->lsf_hist_ptr = 0;
+ st->log_pg_mean = 0;
+ st->log_en_hist_ptr = 0;
+
+ /* initialize decoder lsf history */
+ st->lsf_hist[0] = 1384;
+ st->lsf_hist[1] = 2077;
+ st->lsf_hist[2] = 3420;
+ st->lsf_hist[3] = 5108;
+ st->lsf_hist[4] = 6742;
+ st->lsf_hist[5] = 8122;
+ st->lsf_hist[6] = 9863;
+ st->lsf_hist[7] = 11092;
+ st->lsf_hist[8] = 12714;
+ st->lsf_hist[9] = 13701;
+
+ for (i = 1; i < DTX_HIST_SIZE; i++)
+ {
+ oscl_memmove((void *)&st->lsf_hist[M*i], &st->lsf_hist[0], M*sizeof(st->lsf_hist[0]));
+ }
+ oscl_memset(st->lsf_hist_mean, 0, sizeof(Word16)*M*DTX_HIST_SIZE);
+
+ /* initialize decoder log frame energy */
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ st->log_en_hist[i] = st->log_en;
+ }
+
+ st->log_en_adjust = 0;
+
+ st->dtxHangoverCount = DTX_HANG_CONST;
+ st->decAnaElapsedCount = 32767;
+
+ st->sid_frame = 0;
+ st->valid_data = 0;
+ st->dtxHangoverAdded = 0;
+
+ st->dtxGlobalState = DTX;
+ st->data_updated = 0;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dtx_dec
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type dtx_decState
+ mem_syn = AMR decoder state
+ lsfState = decoder lsf states
+ predState = prediction states
+ averState = CB gain average states
+ new_state = new DTX state
+ mode = AMR mode
+ parm = Vector of synthesis parameters
+
+ Outputs:
+ st points to an updated structure of type dtx_decState
+ mem_syn = AMR decoder state
+ lsfState = decoder lsf states
+ predState = prediction states
+ averState = CB gain average states
+ synth = synthesised speech
+ A_t = decoded LP filter in 4 subframes
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Decode comfort noise when in DTX.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dtx_dec.c, UMTS GSM AMR speech codec, R99 - Version 3.3.0, December 12, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int dtx_dec(
+ dtx_decState *st, // i/o : State struct
+ Word16 mem_syn[], // i/o : AMR decoder state
+ D_plsfState* lsfState, // i/o : decoder lsf states
+ gc_predState* predState, // i/o : prediction states
+ Cb_gain_averageState* averState, // i/o : CB gain average states
+ enum DTXStateType new_state, // i : new DTX state
+ enum Mode mode, // i : AMR mode
+ Word16 parm[], // i : Vector of synthesis parameters
+ Word16 synth[], // o : synthesised speech
+ Word16 A_t[] // o : decoded LP filter in 4 subframes
+ )
+{
+ Word16 log_en_index;
+ Word16 i, j;
+ Word16 int_fac;
+ Word32 L_log_en_int;
+ Word16 lsp_int[M];
+ Word16 log_en_int_e;
+ Word16 log_en_int_m;
+ Word16 level;
+ Word16 acoeff[M + 1];
+ Word16 refl[M];
+ Word16 pred_err;
+ Word16 ex[L_SUBFR];
+ Word16 ma_pred_init;
+ Word16 log_pg_e, log_pg_m;
+ Word16 log_pg;
+ Flag negative;
+ Word16 lsf_mean;
+ Word32 L_lsf_mean;
+ Word16 lsf_variab_index;
+ Word16 lsf_variab_factor;
+ Word16 lsf_int[M];
+ Word16 lsf_int_variab[M];
+ Word16 lsp_int_variab[M];
+ Word16 acoeff_variab[M + 1];
+
+ Word16 lsf[M];
+ Word32 L_lsf[M];
+ Word16 ptr;
+ Word16 tmp_int_length;
+
+
+ // This function is called if synthesis state is not SPEECH
+ // the globally passed inputs to this function are
+ // st->sid_frame
+ // st->valid_data
+ // st->dtxHangoverAdded
+ // new_state (SPEECH, DTX, DTX_MUTE)
+
+ if ((st->dtxHangoverAdded != 0) &&
+ (st->sid_frame != 0))
+ {
+ // sid_first after dtx hangover period
+ // or sid_upd after dtxhangover
+
+ // set log_en_adjust to correct value
+ st->log_en_adjust = dtx_log_en_adjust[mode];
+
+ ptr = add(st->lsf_hist_ptr, M);
+ if (sub(ptr, 80) == 0)
+ {
+ ptr = 0;
+ }
+ Copy( &st->lsf_hist[st->lsf_hist_ptr],&st->lsf_hist[ptr],M);
+
+ ptr = add(st->log_en_hist_ptr,1);
+ if (sub(ptr, DTX_HIST_SIZE) == 0)
+ {
+ ptr = 0;
+ }
+ st->log_en_hist[ptr] = st->log_en_hist[st->log_en_hist_ptr]; // Q11
+
+ // compute mean log energy and lsp
+ // from decoded signal (SID_FIRST)
+ st->log_en = 0;
+ for (i = 0; i < M; i++)
+ {
+ L_lsf[i] = 0;
+ }
+
+ // average energy and lsp
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ st->log_en = add(st->log_en,
+ shr(st->log_en_hist[i],3));
+ for (j = 0; j < M; j++)
+ {
+ L_lsf[j] = L_add(L_lsf[j],
+ L_deposit_l(st->lsf_hist[i * M + j]));
+ }
+ }
+
+ for (j = 0; j < M; j++)
+ {
+ lsf[j] = extract_l(L_shr(L_lsf[j],3)); // divide by 8
+ }
+
+ Lsf_lsp(lsf, st->lsp, M);
+
+ // make log_en speech coder mode independent
+ // added again later before synthesis
+ st->log_en = sub(st->log_en, st->log_en_adjust);
+
+ // compute lsf variability vector
+ Copy(st->lsf_hist, st->lsf_hist_mean, 80);
+
+ for (i = 0; i < M; i++)
+ {
+ L_lsf_mean = 0;
+ // compute mean lsf
+ for (j = 0; j < 8; j++)
+ {
+ L_lsf_mean = L_add(L_lsf_mean,
+ L_deposit_l(st->lsf_hist_mean[i+j*M]));
+ }
+
+ lsf_mean = extract_l(L_shr(L_lsf_mean, 3));
+ // subtract mean and limit to within reasonable limits
+ // moreover the upper lsf's are attenuated
+ for (j = 0; j < 8; j++)
+ {
+ // subtract mean
+ st->lsf_hist_mean[i+j*M] =
+ sub(st->lsf_hist_mean[i+j*M], lsf_mean);
+
+ // attenuate deviation from mean, especially for upper lsf's
+ st->lsf_hist_mean[i+j*M] =
+ mult(st->lsf_hist_mean[i+j*M], lsf_hist_mean_scale[i]);
+
+ // limit the deviation
+ if (st->lsf_hist_mean[i+j*M] < 0)
+ {
+ negative = 1;
+ }
+ else
+ {
+ negative = 0;
+ }
+ st->lsf_hist_mean[i+j*M] = abs_s(st->lsf_hist_mean[i+j*M]);
+
+ // apply soft limit
+ if (sub(st->lsf_hist_mean[i+j*M], 655) > 0)
+ {
+ st->lsf_hist_mean[i+j*M] =
+ add(655, shr(sub(st->lsf_hist_mean[i+j*M], 655), 2));
+ }
+
+ // apply hard limit
+ if (sub(st->lsf_hist_mean[i+j*M], 1310) > 0)
+ {
+ st->lsf_hist_mean[i+j*M] = 1310;
+ }
+ if (negative != 0)
+ {
+ st->lsf_hist_mean[i+j*M] = -st->lsf_hist_mean[i+j*M];
+ }
+
+ }
+ }
+ }
+
+ if (st->sid_frame != 0 )
+ {
+ // Set old SID parameters, always shift
+ // even if there is no new valid_data
+ Copy(st->lsp, st->lsp_old, M);
+ st->old_log_en = st->log_en;
+
+ if (st->valid_data != 0 ) // new data available (no CRC)
+ {
+ // Compute interpolation factor, since the division only works
+ // for values of since_last_sid < 32 we have to limit the
+ // interpolation to 32 frames
+ tmp_int_length = st->since_last_sid;
+ st->since_last_sid = 0;
+
+ if (sub(tmp_int_length, 32) > 0)
+ {
+ tmp_int_length = 32;
+ }
+ if (sub(tmp_int_length, 2) >= 0)
+ {
+ st->true_sid_period_inv = div_s(1 << 10, shl(tmp_int_length, 10));
+ }
+ else
+ {
+ st->true_sid_period_inv = 1 << 14; // 0.5 it Q15
+ }
+
+ Init_D_plsf_3(lsfState, parm[0]); // temporay initialization
+ D_plsf_3(lsfState, MRDTX, 0, &parm[1], st->lsp);
+ Set_zero(lsfState->past_r_q, M); // reset for next speech frame
+
+ log_en_index = parm[4];
+ // Q11 and divide by 4
+ st->log_en = shl(log_en_index, (11 - 2));
+
+ // Subtract 2.5 in Q11
+ st->log_en = sub(st->log_en, (2560 * 2));
+
+ // Index 0 is reserved for silence
+ if (log_en_index == 0)
+ {
+ st->log_en = MIN_16;
+ }
+
+ // no interpolation at startup after coder reset
+ // or when SID_UPD has been received right after SPEECH
+ if ((st->data_updated == 0) ||
+ (sub(st->dtxGlobalState, SPEECH) == 0)
+ )
+ {
+ Copy(st->lsp, st->lsp_old, M);
+ st->old_log_en = st->log_en;
+ }
+ } // endif valid_data
+
+ // initialize gain predictor memory of other modes
+ ma_pred_init = sub(shr(st->log_en,1), 9000);
+ if (ma_pred_init > 0)
+ {
+ ma_pred_init = 0;
+ }
+ if (sub(ma_pred_init, -14436) < 0)
+ {
+ ma_pred_init = -14436;
+ }
+
+ predState->past_qua_en[0] = ma_pred_init;
+ predState->past_qua_en[1] = ma_pred_init;
+ predState->past_qua_en[2] = ma_pred_init;
+ predState->past_qua_en[3] = ma_pred_init;
+
+ // past_qua_en for other modes than MR122
+ ma_pred_init = mult(5443, ma_pred_init);
+ // scale down by factor 20*log10(2) in Q15
+ predState->past_qua_en_MR122[0] = ma_pred_init;
+ predState->past_qua_en_MR122[1] = ma_pred_init;
+ predState->past_qua_en_MR122[2] = ma_pred_init;
+ predState->past_qua_en_MR122[3] = ma_pred_init;
+ } // endif sid_frame
+
+ // CN generation
+ // recompute level adjustment factor Q11
+ // st->log_en_adjust = 0.9*st->log_en_adjust +
+ // 0.1*dtx_log_en_adjust[mode]);
+ st->log_en_adjust = add(mult(st->log_en_adjust, 29491),
+ shr(mult(shl(dtx_log_en_adjust[mode],5),3277),5));
+
+ // Interpolate SID info
+ int_fac = shl(add(1,st->since_last_sid), 10); // Q10
+ int_fac = mult(int_fac, st->true_sid_period_inv); // Q10 * Q15 -> Q10
+
+ // Maximize to 1.0 in Q10
+ if (sub(int_fac, 1024) > 0)
+ {
+ int_fac = 1024;
+ }
+ int_fac = shl(int_fac, 4); // Q10 -> Q14
+
+ L_log_en_int = L_mult(int_fac, st->log_en); // Q14 * Q11->Q26
+ for(i = 0; i < M; i++)
+ {
+ lsp_int[i] = mult(int_fac, st->lsp[i]);// Q14 * Q15 -> Q14
+ }
+
+ int_fac = sub(16384, int_fac); // 1-k in Q14
+
+ // (Q14 * Q11 -> Q26) + Q26 -> Q26
+ L_log_en_int = L_mac(L_log_en_int, int_fac, st->old_log_en);
+ for(i = 0; i < M; i++)
+ {
+ // Q14 + (Q14 * Q15 -> Q14) -> Q14
+ lsp_int[i] = add(lsp_int[i], mult(int_fac, st->lsp_old[i]));
+ lsp_int[i] = shl(lsp_int[i], 1); // Q14 -> Q15
+ }
+
+ // compute the amount of lsf variability
+ lsf_variab_factor = sub(st->log_pg_mean,2457); // -0.6 in Q12
+ // *0.3 Q12*Q15 -> Q12
+ lsf_variab_factor = sub(4096, mult(lsf_variab_factor, 9830));
+
+ // limit to values between 0..1 in Q12
+ if (sub(lsf_variab_factor, 4096) > 0)
+ {
+ lsf_variab_factor = 4096;
+ }
+ if (lsf_variab_factor < 0)
+ {
+ lsf_variab_factor = 0;
+ }
+ lsf_variab_factor = shl(lsf_variab_factor, 3); // -> Q15
+
+ // get index of vector to do variability with
+ lsf_variab_index = pseudonoise(&st->L_pn_seed_rx, 3);
+
+ // convert to lsf
+ Lsp_lsf(lsp_int, lsf_int, M);
+
+ // apply lsf variability
+ Copy(lsf_int, lsf_int_variab, M);
+ for(i = 0; i < M; i++)
+ {
+ lsf_int_variab[i] = add(lsf_int_variab[i],
+ mult(lsf_variab_factor,
+ st->lsf_hist_mean[i+lsf_variab_index*M]));
+ }
+
+ // make sure that LSP's are ordered
+ Reorder_lsf(lsf_int, LSF_GAP, M);
+ Reorder_lsf(lsf_int_variab, LSF_GAP, M);
+
+ // copy lsf to speech decoders lsf state
+ Copy(lsf_int, lsfState->past_lsf_q, M);
+
+ // convert to lsp
+ Lsf_lsp(lsf_int, lsp_int, M);
+ Lsf_lsp(lsf_int_variab, lsp_int_variab, M);
+
+ // Compute acoeffs Q12 acoeff is used for level
+ // normalization and postfilter, acoeff_variab is
+ // used for synthesis filter
+ // by doing this we make sure that the level
+ // in high frequenncies does not jump up and down
+
+ Lsp_Az(lsp_int, acoeff);
+ Lsp_Az(lsp_int_variab, acoeff_variab);
+
+ // For use in postfilter
+ Copy(acoeff, &A_t[0], M + 1);
+ Copy(acoeff, &A_t[M + 1], M + 1);
+ Copy(acoeff, &A_t[2 * (M + 1)], M + 1);
+ Copy(acoeff, &A_t[3 * (M + 1)], M + 1);
+
+ // Compute reflection coefficients Q15
+ A_Refl(&acoeff[1], refl);
+
+ // Compute prediction error in Q15
+ pred_err = MAX_16; // 0.99997 in Q15
+ for (i = 0; i < M; i++)
+ {
+ pred_err = mult(pred_err, sub(MAX_16, mult(refl[i], refl[i])));
+ }
+
+ // compute logarithm of prediction gain
+ Log2(L_deposit_l(pred_err), &log_pg_e, &log_pg_m);
+
+ // convert exponent and mantissa to Word16 Q12
+ log_pg = shl(sub(log_pg_e,15), 12); // Q12
+ log_pg = shr(sub(0,add(log_pg, shr(log_pg_m, 15-12))), 1);
+ st->log_pg_mean = add(mult(29491,st->log_pg_mean),
+ mult(3277, log_pg));
+
+ // Compute interpolated log energy
+ L_log_en_int = L_shr(L_log_en_int, 10); // Q26 -> Q16
+
+ // Add 4 in Q16
+ L_log_en_int = L_add(L_log_en_int, 4 * 65536L);
+
+ // subtract prediction gain
+ L_log_en_int = L_sub(L_log_en_int, L_shl(L_deposit_l(log_pg), 4));
+
+ // adjust level to speech coder mode
+ L_log_en_int = L_add(L_log_en_int,
+ L_shl(L_deposit_l(st->log_en_adjust), 5));
+
+ log_en_int_e = extract_h(L_log_en_int);
+ log_en_int_m = extract_l(L_shr(L_sub(L_log_en_int,
+ L_deposit_h(log_en_int_e)), 1));
+ level = extract_l(Pow2(log_en_int_e, log_en_int_m)); // Q4
+
+ for (i = 0; i < 4; i++)
+ {
+ // Compute innovation vector
+ build_CN_code(&st->L_pn_seed_rx, ex);
+ for (j = 0; j < L_SUBFR; j++)
+ {
+ ex[j] = mult(level, ex[j]);
+ }
+ // Synthesize
+ Syn_filt(acoeff_variab, ex, &synth[i * L_SUBFR], L_SUBFR,
+ mem_syn, 1);
+
+ } // next i
+
+ // reset codebook averaging variables
+ averState->hangVar = 20;
+ averState->hangCount = 0;
+
+ if (sub(new_state, DTX_MUTE) == 0)
+ {
+ // mute comfort noise as it has been quite a long time since
+ * last SID update was performed
+
+ tmp_int_length = st->since_last_sid;
+ if (sub(tmp_int_length, 32) > 0)
+ {
+ tmp_int_length = 32;
+ }
+
+ // safety guard against division by zero
+ if(tmp_int_length <= 0) {
+ tmp_int_length = 8;
+ }
+
+ st->true_sid_period_inv = div_s(1 << 10, shl(tmp_int_length, 10));
+
+ st->since_last_sid = 0;
+ Copy(st->lsp, st->lsp_old, M);
+ st->old_log_en = st->log_en;
+ // subtract 1/8 in Q11 i.e -6/8 dB
+ st->log_en = sub(st->log_en, 256);
+ }
+
+ // reset interpolation length timer
+ // if data has been updated.
+ if ((st->sid_frame != 0) &&
+ ((st->valid_data != 0) ||
+ ((st->valid_data == 0) && (st->dtxHangoverAdded) != 0)))
+ {
+ st->since_last_sid = 0;
+ st->data_updated = 1;
+ }
+
+ return 0;
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void dtx_dec(
+ dtx_decState *st, /* i/o : State struct */
+ Word16 mem_syn[], /* i/o : AMR decoder state */
+ D_plsfState* lsfState, /* i/o : decoder lsf states */
+ gc_predState* predState, /* i/o : prediction states */
+ Cb_gain_averageState* averState, /* i/o : CB gain average states */
+ enum DTXStateType new_state, /* i : new DTX state */
+ enum Mode mode, /* i : AMR mode */
+ Word16 parm[], /* i : Vector of synthesis parameters */
+ CommonAmrTbls* common_amr_tbls, /* i : Ptr to struct of table ptrs */
+ Word16 synth[], /* o : synthesised speech */
+ Word16 A_t[], /* o : decoded LP filter in 4 subframes*/
+ Flag *pOverflow
+)
+{
+ Word16 log_en_index;
+ Word16 i;
+ Word16 j;
+ Word16 int_fac;
+ Word32 L_log_en_int;
+ Word16 lsp_int[M];
+ Word16 log_en_int_e;
+ Word16 log_en_int_m;
+ Word16 level;
+ Word16 acoeff[M + 1];
+ Word16 refl[M];
+ Word16 pred_err;
+ Word16 ex[L_SUBFR];
+ Word16 ma_pred_init;
+ Word16 log_pg_e;
+ Word16 log_pg_m;
+ Word16 log_pg;
+ Flag negative;
+ Word16 lsf_mean;
+ Word32 L_lsf_mean;
+ Word16 lsf_variab_index;
+ Word16 lsf_variab_factor;
+ Word16 lsf_int[M];
+ Word16 lsf_int_variab[M];
+ Word16 lsp_int_variab[M];
+ Word16 acoeff_variab[M + 1];
+
+ Word16 lsf[M];
+ Word32 L_lsf[M];
+ Word16 ptr;
+ Word16 tmp_int_length;
+
+ Word32 L_temp;
+ Word16 temp;
+
+ /* This function is called if synthesis state is not SPEECH
+ * the globally passed inputs to this function are
+ * st->sid_frame
+ * st->valid_data
+ * st->dtxHangoverAdded
+ * new_state (SPEECH, DTX, DTX_MUTE)
+ */
+
+ if ((st->dtxHangoverAdded != 0) &&
+ (st->sid_frame != 0))
+ {
+ /* sid_first after dtx hangover period */
+ /* or sid_upd after dtxhangover */
+
+ /* set log_en_adjust to correct value */
+ st->log_en_adjust = dtx_log_en_adjust[mode];
+
+ ptr = st->lsf_hist_ptr + M;
+
+ if (ptr == 80)
+ {
+ ptr = 0;
+ }
+ oscl_memmove((void *)&st->lsf_hist[ptr], &st->lsf_hist[st->lsf_hist_ptr], M*sizeof(*st->lsf_hist));
+
+ ptr = st->log_en_hist_ptr + 1;
+
+ if (ptr == DTX_HIST_SIZE)
+ {
+ ptr = 0;
+ }
+
+ st->log_en_hist[ptr] = st->log_en_hist[st->log_en_hist_ptr]; /* Q11 */
+
+ /* compute mean log energy and lsp *
+ * from decoded signal (SID_FIRST) */
+ st->log_en = 0;
+ for (i = M - 1; i >= 0; i--)
+ {
+ L_lsf[i] = 0;
+ }
+
+ /* average energy and lsp */
+ for (i = DTX_HIST_SIZE - 1; i >= 0; i--)
+ {
+ if (st->log_en_hist[i] < 0)
+ {
+ temp = ~((~st->log_en_hist[i]) >> 3);
+ }
+ else
+ {
+ temp = st->log_en_hist[i] >> 3;
+ }
+ st->log_en = add_16(st->log_en, temp, pOverflow);
+ for (j = M - 1; j >= 0; j--)
+ {
+ L_lsf[j] = L_add(L_lsf[j],
+ (Word32)(st->lsf_hist[i * M + j]), pOverflow);
+ }
+ }
+
+ for (j = M - 1; j >= 0; j--)
+ {
+ if (L_lsf[j] < 0)
+ {
+ lsf[j] = (Word16)(~((~L_lsf[j]) >> 3));
+ }
+ else
+ {
+ lsf[j] = (Word16)(L_lsf[j] >> 3);
+ }
+ }
+
+ Lsf_lsp(lsf, st->lsp, M, pOverflow);
+
+ /* make log_en speech coder mode independent */
+ /* added again later before synthesis */
+ st->log_en = sub(st->log_en, st->log_en_adjust, pOverflow);
+
+ /* compute lsf variability vector */
+ oscl_memmove((void *)st->lsf_hist_mean, st->lsf_hist, 80*sizeof(*st->lsf_hist));
+
+ for (i = M - 1; i >= 0; i--)
+ {
+ L_lsf_mean = 0;
+ /* compute mean lsf */
+ for (j = 8 - 1; j >= 0; j--)
+ {
+ L_lsf_mean = L_add(L_lsf_mean,
+ (Word32)(st->lsf_hist_mean[i+j*M]), pOverflow);
+ }
+
+ if (L_lsf_mean < 0)
+ {
+ lsf_mean = (Word16)(~((~L_lsf_mean) >> 3));
+ }
+ else
+ {
+ lsf_mean = (Word16)(L_lsf_mean >> 3);
+ }
+ /* subtract mean and limit to within reasonable limits *
+ * moreover the upper lsf's are attenuated */
+ for (j = 8 - 1; j >= 0; j--)
+ {
+ /* subtract mean */
+ st->lsf_hist_mean[i+j*M] =
+ sub(st->lsf_hist_mean[i+j*M], lsf_mean, pOverflow);
+
+ /* attenuate deviation from mean, especially for upper lsf's */
+ st->lsf_hist_mean[i+j*M] =
+ mult(st->lsf_hist_mean[i+j*M], lsf_hist_mean_scale[i], pOverflow);
+
+ /* limit the deviation */
+ if (st->lsf_hist_mean[i+j*M] < 0)
+ {
+ negative = 1;
+ }
+ else
+ {
+ negative = 0;
+ }
+ st->lsf_hist_mean[i+j*M] = abs_s(st->lsf_hist_mean[i+j*M]);
+
+ /* apply soft limit */
+ if (st->lsf_hist_mean[i+j*M] > 655)
+ {
+ st->lsf_hist_mean[i+j*M] = 655 + ((st->lsf_hist_mean[i+j*M]
+ - 655) >> 2);
+ }
+
+ /* apply hard limit */
+ if (st->lsf_hist_mean[i+j*M] > 1310)
+ {
+ st->lsf_hist_mean[i+j*M] = 1310;
+ }
+
+ if (negative != 0)
+ {
+ st->lsf_hist_mean[i+j*M] = -st->lsf_hist_mean[i+j*M];
+ }
+ }
+ }
+ }
+
+
+ if (st->sid_frame != 0)
+ {
+ /* Set old SID parameters, always shift */
+ /* even if there is no new valid_data */
+ oscl_memmove((void *)st->lsp_old, st->lsp, M*sizeof(*st->lsp));
+ st->old_log_en = st->log_en;
+
+ if (st->valid_data != 0) /* new data available (no CRC) */
+ {
+ /* Compute interpolation factor, since the division only works *
+ * for values of since_last_sid < 32 we have to limit the *
+ * interpolation to 32 frames */
+ tmp_int_length = st->since_last_sid;
+ st->since_last_sid = 0;
+
+ if (tmp_int_length >= 32)
+ {
+ tmp_int_length = 32;
+ }
+
+ L_temp = ((Word32) tmp_int_length) << 10;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ *pOverflow = 1;
+ L_temp = (Word32)((tmp_int_length > 0) ? MAX_16 : MIN_16);
+ }
+ temp = (Word16) L_temp;
+
+ if (tmp_int_length >= 2)
+ {
+ st->true_sid_period_inv = div_s(1 << 10, temp);
+ }
+ else
+ {
+ st->true_sid_period_inv = 1 << 14; /* 0.5 it Q15 */
+ }
+
+ Init_D_plsf_3(lsfState, parm[0], common_amr_tbls->past_rq_init_ptr);
+ D_plsf_3(lsfState, MRDTX, 0, &parm[1], common_amr_tbls, st->lsp, pOverflow);
+ /* reset for next speech frame */
+ oscl_memset((void *)lsfState->past_r_q, 0, M*sizeof(*lsfState->past_r_q));
+
+ log_en_index = parm[4];
+ /* Q11 and divide by 4 */
+ if ((log_en_index > 63) || (log_en_index < -64))
+ {
+ st->log_en = (log_en_index > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ st->log_en = (log_en_index) << (11 - 2);
+ }
+
+ /* Subtract 2.5 in Q11 */
+ st->log_en -= (2560 * 2);
+
+ /* Index 0 is reserved for silence */
+ if (log_en_index == 0)
+ {
+ st->log_en = MIN_16;
+ }
+
+ /* no interpolation at startup after coder reset */
+ /* or when SID_UPD has been received right after SPEECH */
+
+ if ((st->data_updated == 0) ||
+ (st->dtxGlobalState == SPEECH))
+ {
+ oscl_memmove((void *)st->lsp_old, st->lsp, M*sizeof(*st->lsp));
+ st->old_log_en = st->log_en;
+ }
+ } /* endif valid_data */
+
+ /* initialize gain predictor memory of other modes */
+ if (st->log_en < 0)
+ {
+ temp = ~((~st->log_en) >> 1);
+ }
+ else
+ {
+ temp = st->log_en >> 1;
+ }
+ ma_pred_init = temp - 9000;
+
+ if (ma_pred_init > 0)
+ {
+ ma_pred_init = 0;
+ }
+ else if (ma_pred_init < -14436)
+ {
+ ma_pred_init = -14436;
+ }
+
+ predState->past_qua_en[0] = ma_pred_init;
+ predState->past_qua_en[1] = ma_pred_init;
+ predState->past_qua_en[2] = ma_pred_init;
+ predState->past_qua_en[3] = ma_pred_init;
+
+ /* past_qua_en for other modes than MR122 */
+ ma_pred_init = ((Word32) ma_pred_init * 5443) >> 15;
+
+ /* scale down by factor 20*log10(2) in Q15 */
+ predState->past_qua_en_MR122[0] = ma_pred_init;
+ predState->past_qua_en_MR122[1] = ma_pred_init;
+ predState->past_qua_en_MR122[2] = ma_pred_init;
+ predState->past_qua_en_MR122[3] = ma_pred_init;
+ } /* endif sid_frame */
+
+ /* CN generation */
+ /* recompute level adjustment factor Q11 *
+ * st->log_en_adjust = 0.9*st->log_en_adjust + *
+ * 0.1*dtx_log_en_adjust[mode]); */
+ if (dtx_log_en_adjust[mode] > 1023)
+ {
+ temp = MAX_16;
+ }
+ else if (dtx_log_en_adjust[mode] < -1024)
+ {
+ temp = MIN_16;
+ }
+ else
+ {
+ temp = (((Word32) dtx_log_en_adjust[mode] << 5) * 3277) >> 15;
+
+
+ }
+
+ if (temp < 0)
+ {
+ temp = ~((~temp) >> 5);
+ }
+ else
+ {
+ temp >>= 5;
+ }
+ st->log_en_adjust = add_16(((Word32)st->log_en_adjust * 29491) >> 15, temp, pOverflow);
+
+
+ /* Interpolate SID info */
+ int_fac = shl((st->since_last_sid + 1), 10, pOverflow); /* Q10 */
+ int_fac = mult(int_fac, st->true_sid_period_inv, pOverflow); /* Q10 * Q15 -> Q10 */
+
+ /* Maximize to 1.0 in Q10 */
+ if (int_fac > 1024)
+ {
+ int_fac = 16384;
+ }
+ else if (int_fac < -2048)
+ {
+ int_fac = MIN_16;
+ }
+ else
+ {
+ int_fac <<= 4; /* Q10 -> Q14 */
+ }
+
+ L_log_en_int = L_mult(int_fac, st->log_en, pOverflow); /* Q14 * Q11->Q26 */
+ for (i = M - 1; i >= 0; i--)
+ {
+ lsp_int[i] = mult(int_fac, st->lsp[i], pOverflow);/* Q14 * Q15 -> Q14 */
+ }
+
+ int_fac = 16384 - int_fac; /* 1-k in Q14 */
+
+ /* (Q14 * Q11 -> Q26) + Q26 -> Q26 */
+ L_log_en_int = L_mac(L_log_en_int, int_fac, st->old_log_en, pOverflow);
+ for (i = M - 1; i >= 0; i--)
+ {
+ /* Q14 + (Q14 * Q15 -> Q14) -> Q14 */
+ lsp_int[i] = add_16(lsp_int[i], mult(int_fac, st->lsp_old[i], pOverflow), pOverflow);
+
+ L_temp = ((Word32) lsp_int[i]) << 1; /* Q14 -> Q15 */
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ *pOverflow = 1;
+ L_temp = (Word32)((lsp_int[i] > 0) ? MAX_16 : MIN_16);
+ }
+ lsp_int[i] = (Word16) L_temp;
+ }
+
+ /* compute the amount of lsf variability */
+ lsf_variab_factor = st->log_pg_mean - 2457; /* -0.6 in Q12 */
+ /* *0.3 Q12*Q15 -> Q12 */
+ lsf_variab_factor = 4096 - mult(lsf_variab_factor, 9830, pOverflow);
+
+ /* limit to values between 0..1 in Q12 */
+ if (lsf_variab_factor > 4095)
+ {
+ lsf_variab_factor = MAX_16;
+ }
+ else if (lsf_variab_factor < 0)
+ {
+ lsf_variab_factor = 0;
+ }
+ else
+ {
+ lsf_variab_factor <<= 3; /* -> Q15 */
+ }
+
+ /* get index of vector to do variability with */
+ lsf_variab_index = pseudonoise(&st->L_pn_seed_rx, 3);
+
+ /* convert to lsf */
+ Lsp_lsf(lsp_int, lsf_int, M, pOverflow);
+
+ /* apply lsf variability */
+ oscl_memmove((void *)lsf_int_variab, lsf_int, M*sizeof(*lsf_int));
+ for (i = M - 1; i >= 0; i--)
+ {
+ lsf_int_variab[i] = add_16(lsf_int_variab[i],
+ mult(lsf_variab_factor,
+ st->lsf_hist_mean[i+lsf_variab_index*M], pOverflow)
+ , pOverflow);
+ }
+
+ /* make sure that LSP's are ordered */
+ Reorder_lsf(lsf_int, LSF_GAP, M, pOverflow);
+ Reorder_lsf(lsf_int_variab, LSF_GAP, M, pOverflow);
+
+ /* copy lsf to speech decoders lsf state */
+ oscl_memmove((void *)lsfState->past_lsf_q, lsf_int, M*sizeof(*lsf_int));
+
+ /* convert to lsp */
+ Lsf_lsp(lsf_int, lsp_int, M, pOverflow);
+ Lsf_lsp(lsf_int_variab, lsp_int_variab, M, pOverflow);
+
+ /* Compute acoeffs Q12 acoeff is used for level *
+ * normalization and postfilter, acoeff_variab is *
+ * used for synthesis filter *
+ * by doing this we make sure that the level *
+ * in high frequenncies does not jump up and down */
+
+ Lsp_Az(lsp_int, acoeff, pOverflow);
+ Lsp_Az(lsp_int_variab, acoeff_variab, pOverflow);
+
+ /* For use in postfilter */
+ oscl_memmove((void *)&A_t[0], acoeff, (M + 1)*sizeof(*acoeff));
+ oscl_memmove((void *)&A_t[M + 1], acoeff, (M + 1)*sizeof(*acoeff));
+ oscl_memmove((void *)&A_t[2 *(M + 1)], acoeff, (M + 1)*sizeof(*acoeff));
+ oscl_memmove((void *)&A_t[3 *(M + 1)], acoeff, (M + 1)*sizeof(*acoeff));
+
+ /* Compute reflection coefficients Q15 */
+ A_Refl(&acoeff[1], refl, pOverflow);
+
+ /* Compute prediction error in Q15 */
+ pred_err = MAX_16; /* 0.99997 in Q15 */
+ for (i = 0; i < M; i++)
+ {
+ L_temp = (((Word32) refl[i]) * refl[i]) >> 15;
+ if (L_temp <= 0x00007fffL)
+ {
+ temp = MAX_16 - (Word16) L_temp;
+ }
+ else
+ {
+ *pOverflow = 1;
+ temp = 0;
+ }
+ pred_err = mult(pred_err, temp, pOverflow);
+ }
+
+ /* compute logarithm of prediction gain */
+ Log2((Word32)(pred_err), &log_pg_e, &log_pg_m, pOverflow);
+
+ /* convert exponent and mantissa to Word16 Q12 */
+ log_pg = shl((log_pg_e - 15), 12, pOverflow); /* Q12 */
+ log_pg = shr(sub(0, add_16(log_pg, shr(log_pg_m, 15 - 12, pOverflow),
+ pOverflow), pOverflow), 1, pOverflow);
+ st->log_pg_mean = add_16(mult(29491, st->log_pg_mean, pOverflow),
+ mult(3277, log_pg, pOverflow), pOverflow);
+
+ /* Compute interpolated log energy */
+ L_log_en_int = L_shr(L_log_en_int, 10, pOverflow); /* Q26 -> Q16 */
+
+ /* Add 4 in Q16 */
+ L_log_en_int = L_add(L_log_en_int, 4 * 65536L, pOverflow);
+
+ /* subtract prediction gain */
+ L_log_en_int = L_sub(L_log_en_int, L_shl((Word32)(log_pg), 4, pOverflow), pOverflow);
+
+ /* adjust level to speech coder mode */
+ L_log_en_int = L_add(L_log_en_int,
+ L_shl((Word32)(st->log_en_adjust), 5, pOverflow), pOverflow);
+
+ log_en_int_e = (Word16)(L_log_en_int >> 16);
+
+ log_en_int_m = (Word16)(L_shr(L_sub(L_log_en_int,
+ ((Word32)log_en_int_e << 16), pOverflow), 1, pOverflow));
+ level = (Word16)(Pow2(log_en_int_e, log_en_int_m, pOverflow)); /* Q4 */
+
+ for (i = 0; i < 4; i++)
+ {
+ /* Compute innovation vector */
+ build_CN_code(&st->L_pn_seed_rx, ex, pOverflow);
+ for (j = L_SUBFR - 1; j >= 0; j--)
+ {
+ ex[j] = mult(level, ex[j], pOverflow);
+ }
+ /* Synthesize */
+ Syn_filt(acoeff_variab, ex, &synth[i * L_SUBFR], L_SUBFR,
+ mem_syn, 1);
+
+ } /* next i */
+
+ /* reset codebook averaging variables */
+ averState->hangVar = 20;
+ averState->hangCount = 0;
+
+ if (new_state == DTX_MUTE)
+ {
+ /* mute comfort noise as it has been quite a long time since
+ * last SID update was performed */
+
+ tmp_int_length = st->since_last_sid;
+
+ if (tmp_int_length > 32)
+ {
+ tmp_int_length = 32;
+ }
+ else if (tmp_int_length <= 0)
+ {
+ /* safety guard against division by zero */
+ tmp_int_length = 8;
+ }
+
+ L_temp = ((Word32) tmp_int_length) << 10;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ *pOverflow = 1;
+ L_temp = (Word32)((tmp_int_length > 0) ? MAX_16 : MIN_16);
+ }
+ temp = (Word16) L_temp;
+
+ st->true_sid_period_inv = div_s(1 << 10, temp);
+
+ st->since_last_sid = 0;
+ oscl_memmove((void *)st->lsp_old, st->lsp, M*sizeof(*st->lsp));
+ st->old_log_en = st->log_en;
+ /* subtract 1/8 in Q11 i.e -6/8 dB */
+ st->log_en = st->log_en - 256;
+ }
+
+ /* reset interpolation length timer
+ * if data has been updated. */
+ if ((st->sid_frame != 0) &&
+ ((st->valid_data != 0) ||
+ ((st->valid_data == 0) && (st->dtxHangoverAdded) != 0)))
+ {
+ st->since_last_sid = 0;
+ st->data_updated = 1;
+ }
+
+ return;
+}
+
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dtx_dec_activity_update
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type dtx_decState
+ lsf =
+ frame =
+
+ Outputs:
+ st points to an updated structure of type dtx_decState
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function updates the DTX parameters.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dtx_dec.c, UMTS GSM AMR speech codec, R99 - Version 3.3.0, December 12, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void dtx_dec_activity_update(dtx_decState *st,
+ Word16 lsf[],
+ Word16 frame[])
+{
+ Word16 i;
+
+ Word32 L_frame_en;
+ Word16 log_en_e, log_en_m, log_en;
+
+ // update lsp history
+ st->lsf_hist_ptr = add(st->lsf_hist_ptr,M);
+ if (sub(st->lsf_hist_ptr, 80) == 0)
+ {
+ st->lsf_hist_ptr = 0;
+ }
+ Copy(lsf, &st->lsf_hist[st->lsf_hist_ptr], M);
+
+ // compute log energy based on frame energy
+ L_frame_en = 0; // Q0
+ for (i=0; i < L_FRAME; i++)
+ {
+ L_frame_en = L_mac(L_frame_en, frame[i], frame[i]);
+ }
+ Log2(L_frame_en, &log_en_e, &log_en_m);
+
+ // convert exponent and mantissa to Word16 Q10
+ log_en = shl(log_en_e, 10); // Q10
+ log_en = add(log_en, shr(log_en_m, 15-10));
+
+ // divide with L_FRAME i.e subtract with log2(L_FRAME) = 7.32193
+ log_en = sub(log_en, 7497+1024);
+
+ // insert into log energy buffer, no division by two as *
+ * log_en in decoder is Q11
+ st->log_en_hist_ptr = add(st->log_en_hist_ptr, 1);
+ if (sub(st->log_en_hist_ptr, DTX_HIST_SIZE) == 0)
+ {
+ st->log_en_hist_ptr = 0;
+ }
+ st->log_en_hist[st->log_en_hist_ptr] = log_en; // Q11
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void dtx_dec_activity_update(dtx_decState *st,
+ Word16 lsf[],
+ Word16 frame[],
+ Flag *pOverflow)
+{
+ Word16 i;
+
+ Word32 L_frame_en;
+ Word32 L_temp;
+ Word16 log_en_e;
+ Word16 log_en_m = 0;
+ Word16 log_en = 0;
+
+ /* update lsp history */
+ st->lsf_hist_ptr += M;
+
+ if (st->lsf_hist_ptr == 80)
+ {
+ st->lsf_hist_ptr = 0;
+ }
+ oscl_memmove((void *)&st->lsf_hist[st->lsf_hist_ptr], lsf, M*sizeof(*lsf));
+
+ /* compute log energy based on frame energy */
+ L_frame_en = 0; /* Q0 */
+ for (i = L_FRAME - 1; i >= 0; i--)
+ {
+ L_temp = ((Word32) frame[i]) * frame[i];
+ if (L_temp != (Word32) 0x40000000L)
+ {
+ L_temp = L_temp << 1;
+ }
+ else
+ {
+ L_temp = MAX_32;
+ }
+ L_frame_en = L_add(L_frame_en, L_temp, pOverflow);
+ }
+ Log2(L_frame_en, &log_en_e, &log_en_m, pOverflow);
+
+ /* convert exponent and mantissa to Word16 Q10 */
+ L_temp = ((Word32) log_en_e) << 10;
+
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ *pOverflow = 1;
+ L_temp = (Word32)((log_en_e > 0) ? MAX_16 : MIN_16);
+ }
+ log_en_e = (Word16) L_temp;
+
+ if (log_en_m < 0)
+ {
+ log_en_m = ~((~log_en_m) >> 5);
+ }
+ else
+ {
+ log_en_m >>= 5;
+ }
+ log_en = log_en_e + log_en_m;
+
+ /* divide with L_FRAME i.e subtract with log2(L_FRAME) = 7.32193 */
+ log_en -= 7497 + 1024;
+
+ /* insert into log energy buffer, no division by two as *
+ * log_en in decoder is Q11 */
+ st->log_en_hist_ptr += 1;
+
+ if (st->log_en_hist_ptr == DTX_HIST_SIZE)
+ {
+ st->log_en_hist_ptr = 0;
+ }
+ st->log_en_hist[st->log_en_hist_ptr] = log_en; /* Q11 */
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: rx_dtx_handler
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type dtx_decState
+ frame_type = RX frame type
+
+ Returns:
+ newState = variable of type DTXStateType
+
+ Outputs:
+ st points to an updated structure of type dtx_decState
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function determines the new state of the decoder based on the frame_type
+ and sets up the decoder parameters according to newState.
+
+ Table of new SPD synthesis states
+
+ | previous SPD_synthesis_state
+ Incoming |
+ frame_type | SPEECH | DTX | DTX_MUTE
+ ---------------------------------------------------------------
+ RX_SPEECH_GOOD , | | |
+ RX_SPEECH_PR_DEGRADED | SPEECH | SPEECH | SPEECH
+ ----------------------------------------------------------------
+ RX_SPEECH_PR_BAD, | | |
+ RX_SPEECH_BAD, | SPEECH | DTX | DTX_MUTE
+ ----------------------------------------------------------------
+ RX_SID_FIRST, | DTX | DTX/(DTX_MUTE)| DTX_MUTE
+ ----------------------------------------------------------------
+ RX_SID_UPDATE, | DTX | DTX | DTX
+ ----------------------------------------------------------------
+ RX_SID_BAD, | DTX | DTX/(DTX_MUTE)| DTX_MUTE
+ ----------------------------------------------------------------
+ RX_NO_DATA | SPEECH | DTX/(DTX_MUTE)| DTX_MUTE
+ |(class2 garb.)| |
+ ----------------------------------------------------------------
+ RX_ONSET | SPEECH | DTX/(DTX_MUTE)| DTX_MUTE
+ |(class2 garb.)| |
+ ----------------------------------------------------------------
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dtx_dec.c, UMTS GSM AMR speech codec, R99 - Version 3.3.0, December 12, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+enum DTXStateType rx_dtx_handler(
+ dtx_decState *st, // i/o : State struct
+ enum RXFrameType frame_type // i : Frame type
+ )
+{
+ enum DTXStateType newState;
+ enum DTXStateType encState;
+
+ // DTX if SID frame or previously in DTX{_MUTE} and (NO_RX OR BAD_SPEECH)
+ if ((sub(frame_type, RX_SID_FIRST) == 0) ||
+ (sub(frame_type, RX_SID_UPDATE) == 0) ||
+ (sub(frame_type, RX_SID_BAD) == 0) ||
+ (((sub(st->dtxGlobalState, DTX) == 0) ||
+ (sub(st->dtxGlobalState, DTX_MUTE) == 0)) &&
+ ((sub(frame_type, RX_NO_DATA) == 0) ||
+ (sub(frame_type, RX_SPEECH_BAD) == 0) ||
+ (sub(frame_type, RX_ONSET) == 0))))
+ {
+ newState = DTX;
+
+ // stay in mute for these input types
+ if ((sub(st->dtxGlobalState, DTX_MUTE) == 0) &&
+ ((sub(frame_type, RX_SID_BAD) == 0) ||
+ (sub(frame_type, RX_SID_FIRST) == 0) ||
+ (sub(frame_type, RX_ONSET) == 0) ||
+ (sub(frame_type, RX_NO_DATA) == 0)))
+ {
+ newState = DTX_MUTE;
+ }
+
+ // evaluate if noise parameters are too old
+ // since_last_sid is reset when CN parameters have been updated
+ st->since_last_sid = add(st->since_last_sid, 1);
+
+ // no update of sid parameters in DTX for a long while
+ // Due to the delayed update of st->since_last_sid counter
+ // SID_UPDATE frames need to be handled separately to avoid
+ // entering DTX_MUTE for late SID_UPDATE frames
+ if((sub(frame_type, RX_SID_UPDATE) != 0) &&
+ (sub(st->since_last_sid, DTX_MAX_EMPTY_THRESH) > 0))
+ {
+ newState = DTX_MUTE;
+ }
+ }
+ else
+ {
+ newState = SPEECH;
+ st->since_last_sid = 0;
+ }
+
+ // reset the decAnaElapsed Counter when receiving CNI data the first
+ // time, to robustify counter missmatch after handover
+ // this might delay the bwd CNI analysis in the new decoder slightly.
+
+ if ((st->data_updated == 0) &&
+ (sub(frame_type, RX_SID_UPDATE) == 0))
+ {
+ st->decAnaElapsedCount = 0;
+ }
+
+ // update the SPE-SPD DTX hangover synchronization
+ // to know when SPE has added dtx hangover
+ st->decAnaElapsedCount = add(st->decAnaElapsedCount, 1);
+ st->dtxHangoverAdded = 0;
+
+ if ((sub(frame_type, RX_SID_FIRST) == 0) ||
+ (sub(frame_type, RX_SID_UPDATE) == 0) ||
+ (sub(frame_type, RX_SID_BAD) == 0) ||
+ (sub(frame_type, RX_ONSET) == 0) ||
+ (sub(frame_type, RX_NO_DATA) == 0))
+ {
+ encState = DTX;
+
+ // In frame errors simulations RX_NO_DATA may occasionally mean that
+ // a speech packet was probably sent by the encoder,
+ // the assumed _encoder_ state should be SPEECH in such cases.
+ if((sub(frame_type, RX_NO_DATA) == 0) &&
+ (sub(newState, SPEECH) == 0))
+ {
+ encState = SPEECH;
+ }
+
+ // Note on RX_ONSET operation differing from RX_NO_DATA operation:
+ // If a RX_ONSET is received in the decoder (by "accident")
+ // it is still most likely that the encoder state
+ // for the "ONSET frame" was DTX.
+
+ }
+ else
+ {
+ encState = SPEECH;
+ }
+
+ if (sub(encState, SPEECH) == 0)
+ {
+ st->dtxHangoverCount = DTX_HANG_CONST;
+ }
+ else
+ {
+ if (sub(st->decAnaElapsedCount, DTX_ELAPSED_FRAMES_THRESH) > 0)
+ {
+ st->dtxHangoverAdded = 1;
+ st->decAnaElapsedCount = 0;
+ st->dtxHangoverCount = 0;
+ }
+ else if (st->dtxHangoverCount == 0)
+ {
+ st->decAnaElapsedCount = 0;
+ }
+ else
+ {
+ st->dtxHangoverCount = sub(st->dtxHangoverCount, 1);
+ }
+ }
+
+ if (sub(newState, SPEECH) != 0)
+ {
+ // DTX or DTX_MUTE
+ // CN data is not in a first SID, first SIDs are marked as SID_BAD
+ // but will do backwards analysis if a hangover period has been added
+ // according to the state machine above
+
+ st->sid_frame = 0;
+ st->valid_data = 0;
+
+ if (sub(frame_type, RX_SID_FIRST) == 0)
+ {
+ st->sid_frame = 1;
+ }
+ else if (sub(frame_type, RX_SID_UPDATE) == 0)
+ {
+ st->sid_frame = 1;
+ st->valid_data = 1;
+ }
+ else if (sub(frame_type, RX_SID_BAD) == 0)
+ {
+ st->sid_frame = 1;
+ st->dtxHangoverAdded = 0; // use old data
+ }
+ }
+
+ return newState;
+ // newState is used by both SPEECH AND DTX synthesis routines
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+enum DTXStateType rx_dtx_handler(
+ dtx_decState *st, /* i/o : State struct */
+ enum RXFrameType frame_type,/* i : Frame type */
+ Flag *pOverflow)
+{
+ enum DTXStateType newState;
+ enum DTXStateType encState;
+
+
+ /* DTX if SID frame or previously in DTX{_MUTE} and (NO_RX OR BAD_SPEECH) */
+
+ if ((frame_type == RX_SID_FIRST) ||
+ (frame_type == RX_SID_UPDATE) ||
+ (frame_type == RX_SID_BAD) ||
+ (((st->dtxGlobalState == DTX) || (st->dtxGlobalState == DTX_MUTE)) &&
+ ((frame_type == RX_NO_DATA) || (frame_type == RX_SPEECH_BAD) ||
+ (frame_type == RX_ONSET))))
+ {
+ newState = DTX;
+
+ /* stay in mute for these input types */
+
+ if ((st->dtxGlobalState == DTX_MUTE) &&
+ ((frame_type == RX_SID_BAD) ||
+ (frame_type == RX_SID_FIRST) ||
+ (frame_type == RX_ONSET) ||
+ (frame_type == RX_NO_DATA)))
+ {
+ newState = DTX_MUTE;
+ }
+
+ /* evaluate if noise parameters are too old */
+ /* since_last_sid is reset when CN parameters have been updated */
+ st->since_last_sid += 1;
+
+ /* no update of sid parameters in DTX for a long while */
+ /* Due to the delayed update of st->since_last_sid counter */
+ /* SID_UPDATE frames need to be handled separately to avoid */
+ /* entering DTX_MUTE for late SID_UPDATE frames */
+ if ((frame_type != RX_SID_UPDATE) &&
+ (st->since_last_sid > DTX_MAX_EMPTY_THRESH))
+ {
+ newState = DTX_MUTE;
+ }
+ }
+ else
+ {
+ newState = SPEECH;
+ st->since_last_sid = 0;
+ }
+
+ /*
+ reset the decAnaElapsed Counter when receiving CNI data the first
+ time, to robustify counter missmatch after handover
+ this might delay the bwd CNI analysis in the new decoder slightly.
+ */
+
+ if ((st->data_updated == 0) &&
+ (frame_type == RX_SID_UPDATE))
+ {
+ st->decAnaElapsedCount = 0;
+ }
+
+ /* update the SPE-SPD DTX hangover synchronization */
+ /* to know when SPE has added dtx hangover */
+ st->decAnaElapsedCount = add_16(st->decAnaElapsedCount, 1, pOverflow);
+ st->dtxHangoverAdded = 0;
+
+ if ((frame_type == RX_SID_FIRST) ||
+ (frame_type == RX_SID_UPDATE) ||
+ (frame_type == RX_SID_BAD) ||
+ (frame_type == RX_ONSET) ||
+ (frame_type == RX_NO_DATA))
+ {
+ encState = DTX;
+
+ /*
+ In frame errors simulations RX_NO_DATA may occasionally mean that
+ a speech packet was probably sent by the encoder,
+ the assumed _encoder_ state should be SPEECH in such cases.
+ */
+ if ((frame_type == RX_NO_DATA) &&
+ (newState == SPEECH))
+ {
+ encState = SPEECH;
+ }
+
+ /*
+ Note on RX_ONSET operation differing from RX_NO_DATA operation:
+ If a RX_ONSET is received in the decoder (by "accident")
+ it is still most likely that the encoder state
+ for the "ONSET frame" was DTX.
+ */
+ }
+ else
+ {
+ encState = SPEECH;
+ }
+
+
+ if (encState == SPEECH)
+ {
+ st->dtxHangoverCount = DTX_HANG_CONST;
+ }
+ else
+ {
+
+ if (st->decAnaElapsedCount > DTX_ELAPSED_FRAMES_THRESH)
+ {
+ st->dtxHangoverAdded = 1;
+ st->decAnaElapsedCount = 0;
+ st->dtxHangoverCount = 0;
+ }
+ else if (st->dtxHangoverCount == 0)
+ {
+ st->decAnaElapsedCount = 0;
+ }
+ else
+ {
+ st->dtxHangoverCount -= 1;
+ }
+ }
+
+ if (newState != SPEECH)
+ {
+ /* DTX or DTX_MUTE
+ * CN data is not in a first SID, first SIDs are marked as SID_BAD
+ * but will do backwards analysis if a hangover period has been added
+ * according to the state machine above
+ */
+
+ st->sid_frame = 0;
+ st->valid_data = 0;
+
+ if (frame_type == RX_SID_FIRST)
+ {
+ st->sid_frame = 1;
+ }
+ else if (frame_type == RX_SID_UPDATE)
+ {
+ st->sid_frame = 1;
+ st->valid_data = 1;
+ }
+ else if (frame_type == RX_SID_BAD)
+ {
+ st->sid_frame = 1;
+ st->dtxHangoverAdded = 0; /* use old data */
+ }
+ }
+
+ /* newState is used by both SPEECH AND DTX synthesis routines */
+ return(newState);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dtx_dec.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : dtx_dec.h
+ Purpose : Decode comfort noice when in DTX
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef DTX_DEC_H
+#define DTX_DEC_H
+#define dtx_dec_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "d_plsf.h"
+#include "gc_pred.h"
+#include "c_g_aver.h"
+#include "frame.h"
+#include "dtx_common_def.h"
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ enum DTXStateType {SPEECH = 0, DTX, DTX_MUTE};
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 since_last_sid;
+ Word16 true_sid_period_inv;
+ Word16 log_en;
+ Word16 old_log_en;
+ Word32 L_pn_seed_rx;
+ Word16 lsp[M];
+ Word16 lsp_old[M];
+
+ Word16 lsf_hist[M*DTX_HIST_SIZE];
+ Word16 lsf_hist_ptr;
+ Word16 lsf_hist_mean[M*DTX_HIST_SIZE];
+ Word16 log_pg_mean;
+ Word16 log_en_hist[DTX_HIST_SIZE];
+ Word16 log_en_hist_ptr;
+
+ Word16 log_en_adjust;
+
+ Word16 dtxHangoverCount;
+ Word16 decAnaElapsedCount;
+
+ Word16 sid_frame;
+ Word16 valid_data;
+ Word16 dtxHangoverAdded;
+
+ enum DTXStateType dtxGlobalState; /* contains previous state */
+ /* updated in main decoder */
+
+ Word16 data_updated; /* marker to know if CNI data is ever renewed */
+
+ } dtx_decState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*
+ * Function : dtx_dec_reset
+ * Purpose : Resets state memory
+ * Returns : 0 on success
+ */
+ Word16 dtx_dec_reset(dtx_decState *st);
+
+ /*
+ * Function : dtx_dec
+ * Purpose :
+ * Description :
+ */
+ void dtx_dec(
+ dtx_decState *st, /* i/o : State struct */
+ Word16 mem_syn[], /* i/o : AMR decoder state */
+ D_plsfState* lsfState, /* i/o : decoder lsf states */
+ gc_predState* predState, /* i/o : prediction states */
+ Cb_gain_averageState* averState, /* i/o : CB gain average states */
+ enum DTXStateType new_state, /* i : new DTX state */
+ enum Mode mode, /* i : AMR mode */
+ Word16 parm[], /* i : Vector of synthesis parameters */
+ CommonAmrTbls* common_amr_tbls, /* i : Ptr to struct of table ptrs */
+ Word16 synth[], /* o : synthesised speech */
+ Word16 A_t[], /* o : decoded LP filter in 4 subframes*/
+ Flag *pOverflow
+ );
+
+ void dtx_dec_activity_update(dtx_decState *st,
+ Word16 lsf[],
+ Word16 frame[],
+ Flag *pOverflow);
+
+ /*
+ * Function : rx_dtx_handler
+ * Purpose : reads the frame type and checks history
+ * Description : to decide what kind of DTX/CNI action to perform
+ */
+ enum DTXStateType rx_dtx_handler(dtx_decState *st, /* i/o : State struct */
+ enum RXFrameType frame_type,/* i : Frame type */
+ Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* DEC_AMR_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+
+ Filename: ec_gains.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ These modules execute the code book gains for error concealment. This module
+ contains the init, reset, exit, and "main" functions in this process.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "ec_gains.h"
+#include "typedef.h"
+#include "cnst.h"
+#include "gmed_n.h"
+#include "gc_pred.h"
+#include "basic_op.h"
+
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ec_gain_code_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a pointer to a structure containing code state data of
+ stucture type ec_gain_codeState
+
+ Outputs:
+ None.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function resets the state data for the ec_gain module.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int ec_gain_code_reset (ec_gain_codeState *state)
+{
+ Word16 i;
+
+ if (state == (ec_gain_codeState *) NULL){
+ // fprintf(stderr, "ec_gain_code_reset: invalid parameter\n");
+ return -1;
+ }
+
+ for ( i = 0; i < 5; i++)
+ state->gbuf[i] = 1;
+ state->past_gain_code = 0;
+ state->prev_gc = 1;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 ec_gain_code_reset(ec_gain_codeState *state)
+{
+ Word16 i;
+
+ if (state == (ec_gain_codeState *) NULL)
+ {
+ /* fprintf(stderr, "ec_gain_code_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ for (i = 0; i < 5; i++)
+ state->gbuf[i] = 1;
+ state->past_gain_code = 0;
+ state->prev_gc = 1;
+
+ return 0;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ec_gain_code
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a pointer to a structure containing code state data of
+ stucture type ec_gain_codeState
+ pred_state = pointer to MA predictor state of type gc_predState
+ state = state of the state machine of type Word16
+ gain_code = pointer to decoded innovation gain of type Word16
+ pOverflow = pointer to overflow indicator of type Flag
+
+ Outputs:
+ st = pointer to a pointer to a structure containing code state data of
+ stucture type ec_gain_codeState
+ pred_state = pointer to MA predictor state of type gc_predState
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+This function does error concealment using the codebook. Call this function
+only in BFI (instead of normal gain decoding function).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ec_gain.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ static const Word16 cdown[7] =
+ {
+ 32767, 32112, 32112, 32112,
+ 32112, 32112, 22937
+ };
+
+ Word16 tmp;
+ Word16 qua_ener_MR122;
+ Word16 qua_ener;
+
+ // calculate median of last five gain values
+ tmp = gmed_n (st->gbuf,5);
+
+ // new gain = minimum(median, past_gain) * cdown[state]
+ if (sub (tmp, st->past_gain_code) > 0)
+ {
+ tmp = st->past_gain_code;
+ }
+ tmp = mult (tmp, cdown[state]);
+ *gain_code = tmp;
+
+ // update table of past quantized energies with average of
+ // current values
+
+ gc_pred_average_limited(pred_state, &qua_ener_MR122, &qua_ener);
+ gc_pred_update(pred_state, qua_ener_MR122, qua_ener);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void ec_gain_code(
+ ec_gain_codeState *st, /* i/o : State struct */
+ gc_predState *pred_state, /* i/o : MA predictor state */
+ Word16 state, /* i : state of the state machine */
+ Word16 *gain_code, /* o : decoded innovation gain */
+ Flag *pOverflow
+)
+{
+ static const Word16 cdown[7] =
+ {
+ 32767, 32112, 32112, 32112,
+ 32112, 32112, 22937
+ };
+
+ Word16 tmp;
+ Word16 qua_ener_MR122;
+ Word16 qua_ener;
+
+ /* calculate median of last five gain values */
+ tmp = gmed_n(st->gbuf, 5);
+
+ /* new gain = minimum(median, past_gain) * cdown[state] */
+ if (sub(tmp, st->past_gain_code, pOverflow) > 0)
+ {
+ tmp = st->past_gain_code;
+ }
+ tmp = mult(tmp, cdown[state], pOverflow);
+ *gain_code = tmp;
+
+ /* update table of past quantized energies with average of
+ * current values
+ */
+ gc_pred_average_limited(pred_state, &qua_ener_MR122, &qua_ener, pOverflow);
+ gc_pred_update(pred_state, qua_ener_MR122, qua_ener);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ec_gain_code_update
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a pointer to a structure containing code state data of
+ stucture type ec_gain_codeState
+ bfi = a flag that indicates if the frame is bad of type Word16
+ prev_bf = a flag that indicates if the previous frame was bad of type Word16
+ gain_code = pointer to decoded innovation gain of type Word16
+ pOverflow = pointer to overflow indicator of type Flag
+
+ Outputs:
+ st = pointer to a pointer to a structure containing code state data of
+ stucture type ec_gain_codeState
+ gain_code = pointer to decoded innovation gain of type Word16
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : update the codebook gain concealment state;
+ limit gain_code if the previous frame was bad
+ Call this function always after decoding (or concealing)
+ the gain
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ec_gain.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Word16 i;
+
+ // limit gain_code by previous good gain if previous frame was bad
+ if (bfi == 0)
+ {
+ if (prev_bf != 0)
+ {
+ if (sub (*gain_code, st->prev_gc) > 0)
+ {
+ *gain_code = st->prev_gc;
+ }
+ }
+ st->prev_gc = *gain_code;
+ }
+
+ // update EC states: previous gain, gain buffer
+ st->past_gain_code = *gain_code;
+
+ for (i = 1; i < 5; i++)
+ {
+ st->gbuf[i - 1] = st->gbuf[i];
+ }
+ st->gbuf[4] = *gain_code;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void ec_gain_code_update(
+ ec_gain_codeState *st, /* i/o : State struct */
+ Word16 bfi, /* i : flag: frame is bad */
+ Word16 prev_bf, /* i : flag: previous frame was bad */
+ Word16 *gain_code, /* i/o : decoded innovation gain */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+
+ /* limit gain_code by previous good gain if previous frame was bad */
+ if (bfi == 0)
+ {
+ if (prev_bf != 0)
+ {
+ if (sub(*gain_code, st->prev_gc, pOverflow) > 0)
+ {
+ *gain_code = st->prev_gc;
+ }
+ }
+ st->prev_gc = *gain_code;
+ }
+
+ /* update EC states: previous gain, gain buffer */
+ st->past_gain_code = *gain_code;
+
+ for (i = 1; i < 5; i++)
+ {
+ st->gbuf[i - 1] = st->gbuf[i];
+ }
+ st->gbuf[4] = *gain_code;
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ec_gain_pitch
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a pointer to a structure containing code
+ state data of stucture type ec_gain_pitchState
+ state = state of the state machine of type Word16
+ pOverflow = pointer to overflow indicator of type Flag
+
+ Outputs:
+ state = pointer to a pointer to a structure containing code
+ state data of stucture type ec_gain_pitchState
+ gain_pitch = pointer to pitch gain (Q14) of type Word16
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function conceals the error using code gain implementation in this
+ function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ec_gain.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+ static const Word16 pdown[7] =
+ {
+ 32767, 32112, 32112, 26214,
+ 9830, 6553, 6553
+ };
+
+ Word16 tmp;
+
+ // calculate median of last five gains
+ tmp = gmed_n (st->pbuf, 5);
+
+ // new gain = minimum(median, past_gain) * pdown[state]
+ if (sub (tmp, st->past_gain_pit) > 0)
+ {
+ tmp = st->past_gain_pit;
+ }
+ *gain_pitch = mult (tmp, pdown[state]);
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void ec_gain_pitch(
+ ec_gain_pitchState *st, /* i/o : state variables */
+ Word16 state, /* i : state of the state machine */
+ Word16 *gain_pitch, /* o : pitch gain (Q14) */
+ Flag *pOverflow
+)
+{
+ static const Word16 pdown[7] =
+ {
+ 32767, 32112, 32112, 26214,
+ 9830, 6553, 6553
+ };
+
+ Word16 tmp;
+
+ /* calculate median of last five gains */
+ tmp = gmed_n(st->pbuf, 5);
+
+ /* new gain = minimum(median, past_gain) * pdown[state] */
+ if (sub(tmp, st->past_gain_pit, pOverflow) > 0)
+ {
+ tmp = st->past_gain_pit;
+ }
+ *gain_pitch = mult(tmp, pdown[state], pOverflow);
+}
+
+/****************************************************************************/
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ec_gain_pitch_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = state of the state machine of type Word16
+ pOverflow = pointer to overflow indicator of type Flag
+
+ Outputs:
+ state = pointer to a pointer to a structure containing code
+ state data of stucture type ec_gain_pitchState
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function: ec_gain_pitch_reset
+ Purpose: Resets state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ec_gain.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int ec_gain_pitch_reset (ec_gain_pitchState *state)
+{
+ Word16 i;
+
+ if (state == (ec_gain_pitchState *) NULL){
+ // fprintf(stderr, "ec_gain_pitch_reset: invalid parameter\n");
+ return -1;
+ }
+
+ for(i = 0; i < 5; i++)
+ state->pbuf[i] = 1640;
+ state->past_gain_pit = 0;
+ state->prev_gp = 16384;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 ec_gain_pitch_reset(ec_gain_pitchState *state)
+{
+ Word16 i;
+
+ if (state == (ec_gain_pitchState *) NULL)
+ {
+ /* fprintf(stderr, "ec_gain_pitch_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ for (i = 0; i < 5; i++)
+ state->pbuf[i] = 1640;
+ state->past_gain_pit = 0;
+ state->prev_gp = 16384;
+
+ return 0;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ec_gain_pitch_update
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a pointer to a structure containing code
+ state data of stucture type ec_gain_pitchState
+ bfi = flag indicating the frame is bad of type Word16
+ prev_bf = flag indicating the previous frame was bad of type Word16
+ gain_pitch = pointer to pitch gain of type Word16
+ pOverflow = pointer to overflow indicator of type Flag
+
+ Outputs:
+ state = pointer to a pointer to a structure containing code
+ state data of stucture type ec_gain_pitchState
+ gain_pitch = pointer to pitch gain of type Word16
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : update the pitch gain concealment state;
+ limit gain_pitch if the previous frame was bad
+ Call this function always after decoding (or concealing)
+ the gain
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ec_gain.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Word16 i;
+
+ if (bfi == 0)
+ {
+ if (prev_bf != 0)
+ {
+ if (sub (*gain_pitch, st->prev_gp) > 0)
+ {
+ *gain_pitch = st->prev_gp;
+ }
+ }
+ st->prev_gp = *gain_pitch;
+ }
+
+ st->past_gain_pit = *gain_pitch;
+
+ if (sub (st->past_gain_pit, 16384) > 0) // if (st->past_gain_pit > 1.0)
+ {
+ st->past_gain_pit = 16384;
+ }
+ for (i = 1; i < 5; i++)
+ {
+ st->pbuf[i - 1] = st->pbuf[i];
+ }
+ st->pbuf[4] = st->past_gain_pit;
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void ec_gain_pitch_update(
+ ec_gain_pitchState *st, /* i/o : state variables */
+ Word16 bfi, /* i : flag: frame is bad */
+ Word16 prev_bf, /* i : flag: previous frame was bad */
+ Word16 *gain_pitch, /* i/o : pitch gain */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+
+ if (bfi == 0)
+ {
+ if (prev_bf != 0)
+ {
+ if (sub(*gain_pitch, st->prev_gp, pOverflow) > 0)
+ {
+ *gain_pitch = st->prev_gp;
+ }
+ }
+ st->prev_gp = *gain_pitch;
+ }
+
+ st->past_gain_pit = *gain_pitch;
+
+ if (sub(st->past_gain_pit, 16384, pOverflow) > 0)
+ /* if (st->past_gain_pit > 1.0) */
+ {
+ st->past_gain_pit = 16384;
+ }
+ for (i = 1; i < 5; i++)
+ {
+ st->pbuf[i - 1] = st->pbuf[i];
+ }
+ st->pbuf[4] = st->past_gain_pit;
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Filename: ec_gains.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : ec_gains.c
+ Purpose: : Error concealment for pitch and codebook gains
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _EC_GAINS_H_
+#define _EC_GAINS_H_
+#define ec_gains_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "gc_pred.h"
+
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 pbuf[5];
+ Word16 past_gain_pit;
+ Word16 prev_gp;
+ } ec_gain_pitchState;
+
+ typedef struct
+ {
+ Word16 gbuf[5];
+ Word16 past_gain_code;
+ Word16 prev_gc;
+ } ec_gain_codeState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*
+ * Function : ec_gain_code_reset
+ * Purpose : Resets state memory
+ *
+ */
+ Word16 ec_gain_code_reset(
+ ec_gain_codeState *state
+ );
+
+
+ /*
+ * Function : ec_gain_code
+ * Purpose : conceal the codebook gain
+ * Call this function only in BFI (instead of normal gain
+ * decoding function)
+ */
+ void ec_gain_code(
+ ec_gain_codeState *st, /* i/o : State struct */
+ gc_predState *pred_state, /* i/o : MA predictor state */
+ Word16 state, /* i : state of the state machine */
+ Word16 *gain_code, /* o : decoded innovation gain */
+ Flag *pOverflow
+ );
+
+ /*
+ * Function : ec_gain_code_update
+ * Purpose : update the codebook gain concealment state;
+ * limit gain_code if the previous frame was bad
+ * Call this function always after decoding (or concealing)
+ * the gain
+ */
+ void ec_gain_code_update(
+ ec_gain_codeState *st, /* i/o : State struct */
+ Word16 bfi, /* i : flag: frame is bad */
+ Word16 prev_bf, /* i : flag: previous frame was bad */
+ Word16 *gain_code, /* i/o : decoded innovation gain */
+ Flag *pOverflow
+ );
+
+
+ /*
+ * Function: ec_gain_pitch_reset
+ * Purpose: Resets state memory
+ */
+ Word16 ec_gain_pitch_reset(
+ ec_gain_pitchState *state
+ );
+
+ /*
+ * Function : ec_gain_pitch_exit
+ * Purpose : The memory used for state memory is freed
+ */
+ void ec_gain_pitch_exit(
+ ec_gain_pitchState **state
+ );
+
+ /*
+ * Function : ec_gain_pitch
+ * Purpose : conceal the pitch gain
+ * Call this function only in BFI (instead of normal gain
+ * decoding function)
+ */
+ void ec_gain_pitch(
+ ec_gain_pitchState *st, /* i/o : state variables */
+ Word16 state, /* i : state of the state machine */
+ Word16 *gain_pitch, /* o : pitch gain (Q14) */
+ Flag *pOverflow
+ );
+
+ /*
+ * Function : ec_gain_pitch_update
+ * Purpose : update the pitch gain concealment state;
+ * limit gain_pitch if the previous frame was bad
+ * Call this function always after decoding (or concealing)
+ * the gain
+ */
+ void ec_gain_pitch_update(
+ ec_gain_pitchState *st, /* i/o : state variables */
+ Word16 bfi, /* i : flag: frame is bad */
+ Word16 prev_bf, /* i : flag: previous frame was bad */
+ Word16 *gain_pitch, /* i/o : pitch gain */
+ Flag *pOverflow
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _EC_GAINS_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ex_ctrl.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "ex_ctrl.h"
+#include "typedef.h"
+#include "cnst.h"
+#include "set_zero.h"
+#include "gmed_n.h"
+#include "sqrt_l.h"
+#include "basic_op.h"
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ex_ctrl
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ excitation = pointer to current subframe excitation of type Word16
+ excEnergy = Exc. Energy, sqrt(totEx*totEx) of type Word16
+ exEnergyHist = pointer to history of subframe energies of type Word16
+ voicedHangover = # of fr. after last voiced fr of type Word16
+ carefulFlag = restrict dynamic in scaling of type Word16
+ pOverflow = pointer to overflow indicator
+
+ Outputs:
+ pOverflow = 1 if overflow exists in the math functions called by this function.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : Ex_ctrl
+ Purpose : Charaterice synthesis speech and detect background noise
+ Returns : background noise decision; 0 = no bgn, 1 = bgn
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ex_ctrl.c, 3GPP TS 26.101 version 4.1.0 Release 4, June 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 Ex_ctrl(Word16 excitation[], /*i/o: Current subframe excitation */
+ Word16 excEnergy, /* i : Exc. Energy, sqrt(totEx*totEx)*/
+ Word16 exEnergyHist[], /* i : History of subframe energies */
+ Word16 voicedHangover, /* i : # of fr. after last voiced fr.*/
+ Word16 prevBFI, /* i : Set i previous BFI */
+ Word16 carefulFlag, /* i : Restrict dymamic in scaling */
+ Flag *pOverflow
+ )
+{
+ Word16 i, exp;
+ Word16 testEnergy, scaleFactor, avgEnergy, prevEnergy;
+ Word32 t0;
+
+ /* get target level */
+ avgEnergy = gmed_n(exEnergyHist, 9);
+
+ prevEnergy = (exEnergyHist[7] + exEnergyHist[8]) >> 1;
+ if (exEnergyHist[8] < prevEnergy)
+ {
+ prevEnergy = exEnergyHist[8];
+ }
+
+ /* upscaling to avoid too rapid energy rises for some cases */
+ if ((excEnergy < avgEnergy) && (excEnergy > 5))
+ {
+ testEnergy = shl(prevEnergy, 2, pOverflow); /* testEnergy = 4*prevEnergy; */
+
+ if ((voicedHangover < 7) || prevBFI != 0)
+ {
+ /* testEnergy = 3*prevEnergy */
+ testEnergy = sub(testEnergy, prevEnergy, pOverflow);
+ }
+
+ if (avgEnergy > testEnergy)
+ {
+ avgEnergy = testEnergy;
+ }
+
+ /* scaleFactor=avgEnergy/excEnergy in Q0 (const 29 below)*/
+ exp = norm_s(excEnergy);
+ excEnergy = shl(excEnergy, exp, pOverflow);
+ excEnergy = div_s((Word16) 16383, excEnergy);
+ t0 = L_mult(avgEnergy, excEnergy, pOverflow);
+ t0 = L_shr(t0, sub(20, exp, pOverflow), pOverflow);
+ /* const=30 for t0 in Q0, 20 for Q10 */
+ if (t0 > 32767)
+ {
+ t0 = 32767; /* saturate */
+ }
+ scaleFactor = (Word16)(t0);
+
+ /* test if scaleFactor > 3.0 */
+ if (carefulFlag != 0 && (scaleFactor > 3072))
+ {
+ scaleFactor = 3072;
+ }
+
+ /* scale the excitation by scaleFactor */
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ t0 = L_mult(scaleFactor, excitation[i], pOverflow);
+ t0 = L_shr(t0, 11, pOverflow);
+ excitation[i] = (Word16)(t0);
+ }
+ }
+
+ return 0;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ex_ctrl.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : ex_ctrl.h
+ Purpose : Excitation Control module in background noise
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef ex_ctrl_h
+#define ex_ctrl_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define L_ENERGYHIST 60
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ /*
+ * Function : Ex_ctrl
+ * Purpose : Charaterice synthesis speech and detect background noise
+ * Returns : background noise decision; 0 = bgn, 1 = no bgn
+ */
+ Word16 Ex_ctrl(Word16 excitation[], /*i/o: Current subframe excitation */
+ Word16 excEnergy, /* i : Exc. Energy, sqrt(totEx*totEx)*/
+ Word16 exEnergyHist[], /* i : History of subframe energies */
+ Word16 voicedHangover, /* i : # of fr. after last voiced fr.*/
+ Word16 prevBFI, /* i : Set i previous BFI */
+ Word16 carefulFlag, /* i : Restrict dymamic in scaling */
+ Flag *pOverflow
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ex_ctrl_h_ */
+
+
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: gsmamr_dec.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This header contains all the necessary information needed to allow the gsm amr
+ decoder library to be used properly upon release.
+
+------------------------------------------------------------------------------
+*/
+#ifndef _GSMAMR_DEC_H_
+#define _GSMAMR_DEC_H_
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "gsm_amr_typedefs.h"
+#include "pvamrnbdecoder_api.h"
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ----------------------------------------------------------------------------*/
+ /* Number of 13-bit linear PCM samples per 20 ms frame */
+ /* L_FRAME = (8 kHz) * (20 msec) = 160 samples */
+#define L_FRAME 160
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ enum Frame_Type_3GPP
+ {
+ AMR_475 = 0, /* 4.75 kbps */
+ AMR_515, /* 5.15 kbps */
+ AMR_59, /* 5.9 kbps */
+ AMR_67, /* 6.7 kbps */
+ AMR_74, /* 7.4 kbps */
+ AMR_795, /* 7.95 kbps */
+ AMR_102, /* 10.2 kbps */
+ AMR_122, /* 12.2 kbps */
+ AMR_SID, /* GSM AMR DTX */
+ GSM_EFR_SID, /* GSM EFR DTX */
+ TDMA_EFR_SID, /* TDMA EFR DTX */
+ PDC_EFR_SID, /* PDC EFR DTX */
+ FOR_FUTURE_USE1, /* Unused 1 */
+ FOR_FUTURE_USE2, /* Unused 2 */
+ FOR_FUTURE_USE3, /* Unused 3 */
+ AMR_NO_DATA
+ }; /* No data */
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ----------------------------------------------------------------------------*/
+ /*
+ * This function allocates memory for filter structure and initializes state
+ * memory used by the GSM AMR decoder. This function returns zero. It will
+ * return negative one if there is an error.
+ */
+ Word16 GSMInitDecode(void **state_data,
+ Word8 *id);
+
+ /*
+ * AMRDecode steps into the part of the library that decodes the raw data
+ * speech bits for the decoding process. It returns the address offset of
+ * the next frame to be decoded.
+ */
+ Word16 AMRDecode(
+ void *state_data,
+ enum Frame_Type_3GPP frame_type,
+ UWord8 *speech_bits_ptr,
+ Word16 *raw_pcm_buffer,
+ Word16 input_format
+ );
+
+ /*
+ * This function resets the state memory used by the GSM AMR decoder. This
+ * function returns zero. It will return negative one if there is an error.
+ */
+ Word16 Speech_Decode_Frame_reset(void *state_data);
+
+ /*
+ * This function frees up the memory used for the state memory of the
+ * GSM AMR decoder.
+ */
+ void GSMDecodeFrameExit(void **state_data);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GSMAMR_DEC_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Filename: if2_to_ets.cpp
+ Funtions: if2_to_ets
+
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "frame_type_3gpp.h"
+#include "if2_to_ets.h"
+#include "typedef.h"
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: if2_to_ets
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ frame_type_3gpp = decoder speech bit rate (enum Frame_Type_3GPP)
+ if2_input_ptr = pointer to input encoded speech bits in IF2 format (Word8)
+ ets_output_ptr = pointer to output encoded speech bits in ETS format (Word16)
+
+ Outputs:
+ ets_output_ptr = pointer to encoded speech bits in the ETS format (Word16)
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs a transformation on the data buffers. It converts the
+ data format from IF2 to ETS. IF2 is the storage format where the frame type
+ is in the first four bits of the first byte. The upper four bits of that byte
+ contain the first four encoded speech bits for the frame. The following bytes
+ contain the rest of the encoded speech bits. The final byte has padded zeros
+ to make the frame byte aligned. ETS format has the encoded speech
+ bits each separate with only one bit stored in each word.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+AMR Speech Codec Frame Structure", 3GPP TS 26.101 version 4.1.0 Release 4, June 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void if2_to_ets(
+ enum Frame_Type_3GPP frame_type_3gpp,
+ UWord8 *if2_input_ptr,
+ Word16 *ets_output_ptr,
+ CommonAmrTbls* common_amr_tbls)
+{
+
+ Word16 i;
+ Word16 j;
+ Word16 x = 0;
+ const Word16* numCompressedBytes_ptr = common_amr_tbls->numCompressedBytes_ptr;
+ const Word16* numOfBits_ptr = common_amr_tbls->numOfBits_ptr;
+ const Word16* const* reorderBits_ptr = common_amr_tbls->reorderBits_ptr;
+
+ /*
+ * The following section of code accesses bits in the IF2 method of
+ * bit ordering. Each bit is given its own location in the buffer pointed
+ * to by ets_output_ptr. The bits (for modes less than AMR_SID) are
+ * reordered using the tables in bitreorder.c before the data is stored
+ * into the buffer pointed to by ets_output_ptr.
+ */
+
+ if (frame_type_3gpp < AMR_SID)
+ {
+ for (j = 4; j < 8; j++)
+ {
+ ets_output_ptr[reorderBits_ptr[frame_type_3gpp][x++]] =
+ (if2_input_ptr[0] >> j) & 0x01;
+ }
+ for (i = 1; i < numCompressedBytes_ptr[frame_type_3gpp]; i++)
+ {
+ for (j = 0; j < 8; j++)
+ {
+ if (x >= numOfBits_ptr[frame_type_3gpp])
+ {
+ break;
+ }
+ ets_output_ptr[reorderBits_ptr[frame_type_3gpp][x++]] =
+ (if2_input_ptr[i] >> j) & 0x01;
+ }
+ }
+ }
+ else
+ {
+ for (j = 4; j < 8; j++)
+ {
+ ets_output_ptr[x++] =
+ (if2_input_ptr[0] >> j) & 0x01;
+ }
+ for (i = 1; i < numCompressedBytes_ptr[frame_type_3gpp]; i++)
+ {
+ for (j = 0; j < 8; j++)
+ {
+ ets_output_ptr[x++] =
+ (if2_input_ptr[i] >> j) & 0x01;
+ }
+ }
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: if2_to_ets.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the if2_to_ets function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef IF2_TO_ETS_H
+#define IF2_TO_ETS_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "frame_type_3gpp.h"
+#include "typedef.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void if2_to_ets(enum Frame_Type_3GPP frame_type_3gpp,
+ UWord8 *if2_input_ptr,
+ Word16 *ets_output_ptr,
+ CommonAmrTbls* common_amr_tbls);
+
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: int_lsf.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "int_lsf.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Int_lsf
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lsf_old = LSF vector at the 4th SF of past frame (Word16)
+ lsf_new = LSF vector at the 4th SF of present frame (Word16)
+ i_subfr = Current subframe (equal to 0,40,80 or 120) (Word16)
+ lsf_out = interpolated LSF parameters for current subframe (Word16)
+
+ Outputs:
+ lsf_out = new interpolated LSF parameters for current subframe
+ pOverflow = pointer of type Flag * to overflow indicator.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function interpolates the LSFs for selected subframe.
+ The 20 ms speech frame is divided into 4 subframes. The LSFs are
+ interpolated at the 1st, 2nd and 3rd subframe and only forwarded
+ at the 4th subframe.
+
+ |------|------|------|------|
+ sf1 sf2 sf3 sf4
+ F0 F1
+
+ sf1: 3/4 F0 + 1/4 F1 sf3: 1/4 F0 + 3/4 F1
+ sf2: 1/2 F0 + 1/2 F1 sf4: F1
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ int_lsf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Int_lsf(
+ Word16 lsf_old[], // i : LSF vector at the 4th SF of past frame
+ Word16 lsf_new[], // i : LSF vector at the 4th SF of present frame
+ Word16 i_subfr, // i : Pointer to current sf (equal to 0,40,80 or 120)
+ Word16 lsf_out[] // o : interpolated LSF parameters for current sf
+)
+{
+ Word16 i;
+
+ if ( i_subfr == 0 )
+ {
+ for (i = 0; i < M; i++) {
+ lsf_out[i] = add(sub(lsf_old[i], shr(lsf_old[i], 2)),
+ shr(lsf_new[i], 2));
+ }
+ }
+ else if ( sub(i_subfr, 40) == 0 )
+ {
+ for (i = 0; i < M; i++) {
+ lsf_out[i] = add(shr(lsf_old[i],1), shr(lsf_new[i], 1) );
+ }
+ }
+ else if ( sub(i_subfr, 80) == 0 )
+ {
+ for (i = 0; i < M; i++) {
+ lsf_out[i] = add(shr(lsf_old[i], 2),
+ sub(lsf_new[i], shr(lsf_new[i], 2)));
+ }
+ }
+ else if ( sub(i_subfr, 120) == 0 )
+ {
+ for (i = 0; i < M; i++) {
+ lsf_out[i] = lsf_new[i];
+ }
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Int_lsf(
+ Word16 lsf_old[], /* i : LSF vector at the 4th SF of past frame */
+ Word16 lsf_new[], /* i : LSF vector at the 4th SF of present frame */
+ Word16 i_subfr, /* i : Current sf (equal to 0,40,80 or 120) */
+ Word16 lsf_out[], /* o : interpolated LSF parameters for current sf */
+ Flag *pOverflow /* o : flag set if overflow occurs */
+)
+{
+ register Word16 i;
+ register Word16 temp1;
+ register Word16 temp2;
+
+ if (i_subfr == 0)
+ {
+ for (i = M - 1; i >= 0; i--)
+ {
+ if (*(lsf_old + i) < 0)
+ {
+ temp1 = ~(~(*(lsf_old + i)) >> 2);
+ }
+ else
+ {
+ temp1 = *(lsf_old + i) >> 2;
+ }
+ if (*(lsf_new + i) < 0)
+ {
+ temp2 = ~(~(*(lsf_new + i)) >> 2);
+ }
+ else
+ {
+ temp2 = *(lsf_new + i) >> 2;
+ }
+ *(lsf_out + i) = add_16((Word16)(*(lsf_old + i) - temp1),
+ (Word16)temp2,
+ pOverflow);
+ }
+ }
+
+ else if (i_subfr == 40)
+ {
+ for (i = M - 1; i >= 0; i--)
+ {
+ if (*(lsf_old + i) < 0)
+ {
+ temp1 = ~(~(*(lsf_old + i)) >> 1);
+ }
+ else
+ {
+ temp1 = *(lsf_old + i) >> 1;
+ }
+ if (*(lsf_new + i) < 0)
+ {
+ temp2 = ~(~(*(lsf_new + i)) >> 1);
+ }
+ else
+ {
+ temp2 = *(lsf_new + i) >> 1;
+ }
+ *(lsf_out + i) = temp1 + temp2;
+ }
+ }
+
+ else if (i_subfr == 80)
+ {
+ for (i = M - 1; i >= 0; i--)
+ {
+ if (*(lsf_old + i) < 0)
+ {
+ temp1 = ~(~(*(lsf_old + i)) >> 2);
+ }
+ else
+ {
+ temp1 = *(lsf_old + i) >> 2;
+ }
+ if (*(lsf_new + i) < 0)
+ {
+ temp2 = ~(~(*(lsf_new + i)) >> 2);
+ }
+ else
+ {
+ temp2 = *(lsf_new + i) >> 2;
+ }
+ *(lsf_out + i) = add_16((Word16)temp1,
+ (Word16)(*(lsf_new + i) - temp2),
+ pOverflow);
+
+ }
+ }
+
+ else if (i_subfr == 120)
+ {
+ for (i = M - 1; i >= 0; i--)
+ {
+ *(lsf_out + i) = *(lsf_new + i);
+ }
+ }
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: lsp_avg.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ LSP averaging and history
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "lsp_avg.h"
+#include "basic_op.h"
+#include "oper_32b.h"
+#include "oscl_mem.h"
+#include "q_plsf_5_tbl.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lsp_avg_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to structure of type lsp_avgState
+
+ Outputs:
+ fields of the structure pointed to by state are initialized.
+
+ Returns:
+ return_value = 0, if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+lsp_avg.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int lsp_avg_reset (lsp_avgState *st)
+{
+ if (st == (lsp_avgState *) NULL){
+ // fprintf(stderr, "lsp_avg_reset: invalid parameter\n");
+ return -1;
+ }
+
+ Copy(mean_lsf, &st->lsp_meanSave[0], M);
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 lsp_avg_reset(lsp_avgState *st, const Word16* mean_lsf_5_ptr)
+{
+ if (st == (lsp_avgState *) NULL)
+ {
+ /* fprintf(stderr, "lsp_avg_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ oscl_memmove((void *)&st->lsp_meanSave[0], mean_lsf_5_ptr, M*sizeof(*mean_lsf_5_ptr));
+
+ return 0;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lsp_avg
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to structure of type lsp_avgState
+ lsp = pointer to Word16, which reflects the state of the state machine
+
+ Outputs:
+ st = pointer to structure of type lsp_avgState
+ pOverflow = pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+lsp_avg.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+void lsp_avg (
+ lsp_avgState *st, // i/o : State struct Q15
+ Word16 *lsp // i : state of the state machine Q15
+)
+{
+ Word16 i;
+ Word32 L_tmp; // Q31
+
+ for (i = 0; i < M; i++) {
+
+ // mean = 0.84*mean
+ L_tmp = L_deposit_h(st->lsp_meanSave[i]);
+ L_tmp = L_msu(L_tmp, EXPCONST, st->lsp_meanSave[i]);
+
+ // Add 0.16 of newest LSPs to mean
+ L_tmp = L_mac(L_tmp, EXPCONST, lsp[i]);
+
+ // Save means
+ st->lsp_meanSave[i] = pv_round(L_tmp); // Q15
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void lsp_avg(
+ lsp_avgState *st, /* i/o : State struct Q15 */
+ Word16 *lsp, /* i : state of the state machine Q15 */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word32 L_tmp; /* Q31 */
+
+ for (i = 0; i < M; i++)
+ {
+
+ /* mean = 0.84*mean */
+ L_tmp = ((Word32)st->lsp_meanSave[i] << 16);
+ L_tmp = L_msu(L_tmp, EXPCONST, st->lsp_meanSave[i], pOverflow);
+
+ /* Add 0.16 of newest LSPs to mean */
+ L_tmp = L_mac(L_tmp, EXPCONST, lsp[i], pOverflow);
+
+ /* Save means */
+ st->lsp_meanSave[i] = pv_round(L_tmp, pOverflow); /* Q15 */
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: lsp_avg.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the lsp_avg.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef lsp_avg_h
+#define lsp_avg_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define EXPCONST 5243 /* 0.16 in Q15 */
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 lsp_meanSave[M]; /* Averaged LSPs saved for efficiency */
+ } lsp_avgState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ Word16 lsp_avg_reset(
+ lsp_avgState *state,
+ const Word16* mean_lsf_5_ptr
+ );
+
+
+ void lsp_avg(
+ lsp_avgState *st, /* i/o : State struct Q15 */
+ Word16 *lsp, /* i : LSP vector Q15 */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LSP_LSF_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ph_disp.cpp
+ Functions:
+ ph_disp_reset
+ ph_disp_lock
+ ph_disp_release
+ ph_disp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the function that performs adaptive phase dispersion of
+ the excitation signal. The phase dispersion initialization, reset, and
+ exit functions are included in this file, as well as, the phase dispersion
+ lock and release functions.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "ph_disp.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ph_disp_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a structure of type ph_dispState
+
+ Outputs:
+ Structure pointed to by state is initialized to zeros
+
+ Returns:
+ return_value = 0, if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function resets the variables used by the phase dispersion function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ph_disp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int ph_disp_reset (ph_dispState *state)
+{
+ Word16 i;
+
+ if (state == (ph_dispState *) NULL){
+ fprint(stderr, "ph_disp_reset: invalid parameter\n");
+ return -1;
+ }
+ for (i=0; i<PHDGAINMEMSIZE; i++)
+ {
+ state->gainMem[i] = 0;
+ }
+ state->prevState = 0;
+ state->prevCbGain = 0;
+ state->lockFull = 0;
+ state->onset = 0; // assume no onset in start
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 ph_disp_reset(ph_dispState *state)
+{
+ register Word16 i;
+
+ if (state == (ph_dispState *) NULL)
+ {
+ /* fprint(stderr, "ph_disp_reset: invalid parameter\n"); */
+ return(-1);
+ }
+ for (i = 0; i < PHDGAINMEMSIZE; i++)
+ {
+ state->gainMem[i] = 0;
+ }
+ state->prevState = 0;
+ state->prevCbGain = 0;
+ state->lockFull = 0;
+ state->onset = 0; /* assume no onset in start */
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ph_disp_lock
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a structure of type ph_dispState
+
+ Outputs:
+ lockFull field of the structure pointed to by state is set to 1
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function sets the lockFull flag to indicate a lock condition.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ph_disp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void ph_disp_lock (ph_dispState *state)
+{
+ state->lockFull = 1;
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void ph_disp_lock(ph_dispState *state)
+{
+ state->lockFull = 1;
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ph_disp_release
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a structure of type ph_dispState
+
+ Outputs:
+ lockFull field of the structure pointed to by state is set to 0
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function clears the lockFull flag to indicate an unlocked state.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ph_disp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void ph_disp_release (ph_dispState *state)
+{
+ state->lockFull = 0;
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void ph_disp_release(ph_dispState *state)
+{
+ state->lockFull = 0;
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ph_disp
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a structure of type ph_dispState
+ mode = codec mode (enum Mode)
+ x = LTP excitation signal buffer (Word16)
+ cbGain = codebook gain (Word16)
+ ltpGain = LTP gain (Word16)
+ inno = innovation buffer (Word16)
+ pitch_fac = pitch factor used to scale the LTP excitation (Word16)
+ tmp_shift = shift factor applied to sum of scaled LTP excitation and
+ innovation before rounding (Word16)
+ pOverflow = pointer to overflow indicator (Flag)
+
+ Outputs:
+ structure pointed to by state contains the updated gainMem array,
+ prevState, prevCbGain, and onset fields
+ x buffer contains the new excitation signal
+ inno buffer contains the new innovation signal
+ pOverflow -> 1 if there is overflow
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs adaptive phase dispersion, i.e., forming of total
+ excitation for the synthesis part of the decoder.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ph_disp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void ph_disp (
+ ph_dispState *state, // i/o : State struct
+ enum Mode mode, // i : codec mode
+ Word16 x[], // i/o Q0 : in: LTP excitation signal
+ // out: total excitation signal
+ Word16 cbGain, // i Q1 : Codebook gain
+ Word16 ltpGain, // i Q14 : LTP gain
+ Word16 inno[], // i/o Q13 : Innovation vector (Q12 for 12.2)
+ Word16 pitch_fac, // i Q14 : pitch factor used to scale the
+ LTP excitation (Q13 for 12.2)
+ Word16 tmp_shift // i Q0 : shift factor applied to sum of
+ scaled LTP ex & innov. before
+ rounding
+)
+{
+ Word16 i, i1;
+ Word16 tmp1;
+ Word32 L_temp;
+ Word16 impNr; // indicator for amount of disp./filter used
+
+ Word16 inno_sav[L_SUBFR];
+ Word16 ps_poss[L_SUBFR];
+ Word16 j, nze, nPulse, ppos;
+ const Word16 *ph_imp; // Pointer to phase dispersion filter
+
+ // Update LTP gain memory
+ for (i = PHDGAINMEMSIZE-1; i > 0; i--)
+ {
+ state->gainMem[i] = state->gainMem[i-1];
+ }
+ state->gainMem[0] = ltpGain;
+
+ // basic adaption of phase dispersion
+ if (sub(ltpGain, PHDTHR2LTP) < 0) { // if (ltpGain < 0.9)
+ if (sub(ltpGain, PHDTHR1LTP) > 0)
+ { // if (ltpGain > 0.6
+ impNr = 1; // medium dispersion
+ }
+ else
+ {
+ impNr = 0; // maximum dispersion
+ }
+ }
+ else
+ {
+ impNr = 2; // no dispersion
+ }
+
+ // onset indicator
+ // onset = (cbGain > onFact * cbGainMem[0])
+ tmp1 = pv_round(L_shl(L_mult(state->prevCbGain, ONFACTPLUS1), 2));
+ if (sub(cbGain, tmp1) > 0)
+ {
+ state->onset = ONLENGTH;
+ }
+ else
+ {
+ if (state->onset > 0)
+ {
+ state->onset = sub (state->onset, 1);
+ }
+ }
+
+ // if not onset, check ltpGain buffer and use max phase dispersion if
+ half or more of the ltpGain-parameters say so
+ if (state->onset == 0)
+ {
+ // Check LTP gain memory and set filter accordingly
+ i1 = 0;
+ for (i = 0; i < PHDGAINMEMSIZE; i++)
+ {
+ if (sub(state->gainMem[i], PHDTHR1LTP) < 0)
+ {
+ i1 = add (i1, 1);
+ }
+ }
+ if (sub(i1, 2) > 0)
+ {
+ impNr = 0;
+ }
+
+ }
+ // Restrict decrease in phase dispersion to one step if not onset
+ if ((sub(impNr, add(state->prevState, 1)) > 0) && (state->onset == 0))
+ {
+ impNr = sub (impNr, 1);
+ }
+ // if onset, use one step less phase dispersion
+ if((sub(impNr, 2) < 0) && (state->onset > 0))
+ {
+ impNr = add (impNr, 1);
+ }
+
+ // disable for very low levels
+ if(sub(cbGain, 10) < 0)
+ {
+ impNr = 2;
+ }
+
+ if(sub(state->lockFull, 1) == 0)
+ {
+ impNr = 0;
+ }
+
+ // update static memory
+ state->prevState = impNr;
+ state->prevCbGain = cbGain;
+
+ // do phase dispersion for all modes but 12.2 and 7.4;
+ // don't modify the innovation if impNr >=2 (= no phase disp)
+ if (sub(mode, MR122) != 0 &&
+ sub(mode, MR102) != 0 &&
+ sub(mode, MR74) != 0 &&
+ sub(impNr, 2) < 0)
+ {
+ // track pulse positions, save innovation,
+ and initialize new innovation
+ nze = 0;
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ if (inno[i] != 0)
+ {
+ ps_poss[nze] = i;
+ nze = add (nze, 1);
+ }
+ inno_sav[i] = inno[i];
+ inno[i] = 0;
+ }
+ // Choose filter corresponding to codec mode and dispersion criterium
+ if (sub (mode, MR795) == 0)
+ {
+ if (impNr == 0)
+ {
+ ph_imp = ph_imp_low_MR795;
+ }
+ else
+ {
+ ph_imp = ph_imp_mid_MR795;
+ }
+ }
+ else
+ {
+ if (impNr == 0)
+ {
+ ph_imp = ph_imp_low;
+ }
+ else
+ {
+ ph_imp = ph_imp_mid;
+ }
+ }
+
+ // Do phase dispersion of innovation
+ for (nPulse = 0; nPulse < nze; nPulse++)
+ {
+ ppos = ps_poss[nPulse];
+
+ // circular convolution with impulse response
+ j = 0;
+ for (i = ppos; i < L_SUBFR; i++)
+ {
+ // inno[i1] += inno_sav[ppos] * ph_imp[i1-ppos]
+ tmp1 = mult(inno_sav[ppos], ph_imp[j++]);
+ inno[i] = add(inno[i], tmp1);
+ }
+
+ for (i = 0; i < ppos; i++)
+ {
+ // inno[i] += inno_sav[ppos] * ph_imp[L_SUBFR-ppos+i]
+ tmp1 = mult(inno_sav[ppos], ph_imp[j++]);
+ inno[i] = add(inno[i], tmp1);
+ }
+ }
+ }
+
+ // compute total excitation for synthesis part of decoder
+ // (using modified innovation if phase dispersion is active)
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ // x[i] = gain_pit*x[i] + cbGain*code[i];
+ L_temp = L_mult ( x[i], pitch_fac);
+ // 12.2: Q0 * Q13
+ // 7.4: Q0 * Q14
+ L_temp = L_mac (L_temp, inno[i], cbGain);
+ // 12.2: Q12 * Q1
+ // 7.4: Q13 * Q1
+ L_temp = L_shl (L_temp, tmp_shift); // Q16
+ x[i] = pv_round (L_temp);
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void ph_disp(
+ ph_dispState *state, /* i/o : State struct */
+ enum Mode mode, /* i : codec mode */
+ Word16 x[], /* i/o Q0 : in: LTP excitation signal */
+ /* out: total excitation signal */
+ Word16 cbGain, /* i Q1 : Codebook gain */
+ Word16 ltpGain, /* i Q14 : LTP gain */
+ Word16 inno[], /* i/o Q13 : Innovation vector (Q12 for 12.2) */
+ Word16 pitch_fac, /* i Q14 : pitch factor used to scale the
+ LTP excitation (Q13 for 12.2) */
+ Word16 tmp_shift, /* i Q0 : shift factor applied to sum of
+ scaled LTP ex & innov. before
+ rounding */
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of table ptrs */
+ Flag *pOverflow /* i/o : oveflow indicator */
+)
+{
+ register Word16 i, i1;
+ register Word16 tmp1;
+ Word32 L_temp;
+ Word32 L_temp2;
+ Word16 impNr; /* indicator for amount of disp./filter used */
+
+ Word16 inno_sav[L_SUBFR];
+ Word16 ps_poss[L_SUBFR];
+ register Word16 nze, nPulse;
+ Word16 ppos;
+ const Word16 *ph_imp; /* Pointer to phase dispersion filter */
+
+ Word16 *p_inno;
+ Word16 *p_inno_sav;
+ Word16 *p_x;
+ const Word16 *p_ph_imp;
+ Word16 c_inno_sav;
+
+ const Word16* ph_imp_low_MR795_ptr = common_amr_tbls->ph_imp_low_MR795_ptr;
+ const Word16* ph_imp_mid_MR795_ptr = common_amr_tbls->ph_imp_mid_MR795_ptr;
+ const Word16* ph_imp_low_ptr = common_amr_tbls->ph_imp_low_ptr;
+ const Word16* ph_imp_mid_ptr = common_amr_tbls->ph_imp_mid_ptr;
+
+ /* Update LTP gain memory */
+ /* Unrolled FOR loop below since PHDGAINMEMSIZE is assumed to stay */
+ /* the same. */
+ /* for (i = PHDGAINMEMSIZE-1; i > 0; i--) */
+ /* { */
+ /* state->gainMem[i] = state->gainMem[i-1]; */
+ /* } */
+ state->gainMem[4] = state->gainMem[3];
+ state->gainMem[3] = state->gainMem[2];
+ state->gainMem[2] = state->gainMem[1];
+ state->gainMem[1] = state->gainMem[0];
+ state->gainMem[0] = ltpGain;
+
+ /* basic adaption of phase dispersion */
+
+ if (ltpGain < PHDTHR2LTP) /* if (ltpGain < 0.9) */
+ {
+ if (ltpGain > PHDTHR1LTP)
+ { /* if (ltpGain > 0.6 */
+ impNr = 1; /* medium dispersion */
+ }
+ else
+ {
+ impNr = 0; /* maximum dispersion */
+ }
+ }
+ else
+ {
+ impNr = 2; /* no dispersion */
+ }
+
+ /* onset indicator */
+ /* onset = (cbGain > onFact * cbGainMem[0]) */
+
+ L_temp = ((Word32) state->prevCbGain * ONFACTPLUS1) << 1;
+
+ /* (L_temp << 2) calculation with saturation check */
+ if (L_temp > (Word32) 0X1fffffffL)
+ {
+ *pOverflow = 1;
+ L_temp = MAX_32;
+ }
+ else if (L_temp < (Word32) 0xe0000000L)
+ {
+ *pOverflow = 1;
+ L_temp = MIN_32;
+ }
+ else
+ {
+ L_temp <<= 2;
+ }
+
+ tmp1 = pv_round(L_temp, pOverflow);
+
+ if (cbGain > tmp1)
+ {
+ state->onset = ONLENGTH;
+ }
+ else
+ {
+
+ if (state->onset > 0)
+ {
+ state->onset -= 1;
+ }
+ }
+
+ /* if not onset, check ltpGain buffer and use max phase dispersion if
+ half or more of the ltpGain-parameters say so */
+ if (state->onset == 0)
+ {
+ /* Check LTP gain memory and set filter accordingly */
+ i1 = 0;
+ for (i = 0; i < PHDGAINMEMSIZE; i++)
+ {
+ if (state->gainMem[i] < PHDTHR1LTP)
+ {
+ i1 += 1;
+ }
+ }
+
+ if (i1 > 2)
+ {
+ impNr = 0;
+ }
+ }
+ /* Restrict decrease in phase dispersion to one step if not onset */
+ if ((impNr > ((state->prevState) + 1)) && (state->onset == 0))
+ {
+ impNr -= 1;
+ }
+
+ /* if onset, use one step less phase dispersion */
+ if ((impNr < 2) && (state->onset > 0))
+ {
+ impNr += 1;
+ }
+
+ /* disable for very low levels */
+ if (cbGain < 10)
+ {
+ impNr = 2;
+ }
+
+ if (state->lockFull == 1)
+ {
+ impNr = 0;
+ }
+
+ /* update static memory */
+ state->prevState = impNr;
+ state->prevCbGain = cbGain;
+
+ /* do phase dispersion for all modes but 12.2 and 7.4;
+ don't modify the innovation if impNr >=2 (= no phase disp) */
+ if ((mode != MR122) && (mode != MR102) && (mode != MR74) && (impNr < 2))
+ {
+ /* track pulse positions, save innovation,
+ and initialize new innovation */
+ nze = 0;
+ p_inno = &inno[0];
+ p_inno_sav = &inno_sav[0];
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ if (*(p_inno) != 0)
+ {
+ ps_poss[nze] = i;
+ nze += 1;
+ }
+ *(p_inno_sav++) = *(p_inno);
+ *(p_inno++) = 0;
+ }
+
+ /* Choose filter corresponding to codec mode and dispersion criterium */
+ if (mode == MR795)
+ {
+ if (impNr == 0)
+ {
+ ph_imp = ph_imp_low_MR795_ptr;
+ }
+ else
+ {
+ ph_imp = ph_imp_mid_MR795_ptr;
+ }
+ }
+ else
+ {
+ if (impNr == 0)
+ {
+ ph_imp = ph_imp_low_ptr;
+ }
+ else
+ {
+ ph_imp = ph_imp_mid_ptr;
+ }
+ }
+
+ /* Do phase dispersion of innovation */
+ for (nPulse = 0; nPulse < nze; nPulse++)
+ {
+ ppos = ps_poss[nPulse];
+
+ /* circular convolution with impulse response */
+ c_inno_sav = inno_sav[ppos];
+ p_inno = &inno[ppos];
+ p_ph_imp = ph_imp;
+
+ for (i = ppos; i < L_SUBFR; i++)
+ {
+ /* inno[i1] += inno_sav[ppos] * ph_imp[i1-ppos] */
+ L_temp = ((Word32) c_inno_sav * *(p_ph_imp++)) >> 15;
+ tmp1 = (Word16) L_temp;
+ *(p_inno) = add_16(*(p_inno), tmp1, pOverflow);
+ p_inno += 1;
+ }
+
+ p_inno = &inno[0];
+
+ for (i = 0; i < ppos; i++)
+ {
+ /* inno[i] += inno_sav[ppos] * ph_imp[L_SUBFR-ppos+i] */
+ L_temp = ((Word32) c_inno_sav * *(p_ph_imp++)) >> 15;
+ tmp1 = (Word16) L_temp;
+ *(p_inno) = add_16(*(p_inno), tmp1, pOverflow);
+ p_inno += 1;
+ }
+ }
+ }
+
+ /* compute total excitation for synthesis part of decoder
+ (using modified innovation if phase dispersion is active) */
+ p_inno = &inno[0];
+ p_x = &x[0];
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ /* x[i] = gain_pit*x[i] + cbGain*code[i]; */
+ L_temp = L_mult(x[i], pitch_fac, pOverflow);
+ /* 12.2: Q0 * Q13 */
+ /* 7.4: Q0 * Q14 */
+ L_temp2 = ((Word32) * (p_inno++) * cbGain) << 1;
+ L_temp = L_add(L_temp, L_temp2, pOverflow);
+ /* 12.2: Q12 * Q1 */
+ /* 7.4: Q13 * Q1 */
+ L_temp = L_shl(L_temp, tmp_shift, pOverflow); /* Q16 */
+ *(p_x++) = pv_round(L_temp, pOverflow);
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ph_disp.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the Phase dispersion of excitation signal ph_disp() function.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef PH_DISP_H
+#define PH_DISP_H "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define PHDGAINMEMSIZE 5
+#define PHDTHR1LTP 9830 /* 0.6 in Q14 */
+#define PHDTHR2LTP 14746 /* 0.9 in Q14 */
+#define ONFACTPLUS1 16384 /* 2.0 in Q13 */
+#define ONLENGTH 2
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 gainMem[PHDGAINMEMSIZE];
+ Word16 prevState;
+ Word16 prevCbGain;
+ Word16 lockFull;
+ Word16 onset;
+ } ph_dispState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ;
+ ; Function: ph_disp_reset
+ ; Purpose: Initializes state memory
+ ;
+ ----------------------------------------------------------------------------*/
+ Word16 ph_disp_reset(ph_dispState *state);
+
+ /*----------------------------------------------------------------------------
+ ;
+ ; Function: ph_disp_exit
+ ; Purpose: The memory used for state memory is freed
+ ;
+ ----------------------------------------------------------------------------*/
+ void ph_disp_exit(ph_dispState **state);
+
+ /*----------------------------------------------------------------------------
+ ;
+ ; Function: ph_disp_lock
+ ; Purpose: mark phase dispersion as locked in state struct
+ ;
+ ----------------------------------------------------------------------------*/
+ void ph_disp_lock(ph_dispState *state);
+
+ /*----------------------------------------------------------------------------
+ ;
+ ; Function: ph_disp_release
+ ; Purpose: mark phase dispersion as unlocked in state struct
+ ;
+ ----------------------------------------------------------------------------*/
+
+ void ph_disp_release(ph_dispState *state);
+
+ /*----------------------------------------------------------------------------
+ ;
+ ; Function: ph_disp
+ ; Purpose: perform phase dispersion according to the specified codec
+ ; mode and computes total excitation for synthesis part
+ ; if decoder
+ ;
+ ----------------------------------------------------------------------------*/
+
+ void ph_disp(
+ ph_dispState *state, /* i/o : State struct */
+ enum Mode mode, /* i : codec mode */
+ Word16 x[], /* i/o Q0 : in: LTP excitation signal */
+ /* out: total excitation signal */
+ Word16 cbGain, /* i Q1 : Codebook gain */
+ Word16 ltpGain, /* i Q14 : LTP gain */
+ Word16 inno[], /* i/o Q13 : Innovation vector (Q12 for 12.2) */
+ Word16 pitch_fac, /* i Q14 : pitch factor used to scale the
+ LTP excitation (Q13 for 12.2) */
+ Word16 tmp_shift, /* i Q0 : shift factor applied to sum of
+ scaled LTP ex & innov. before
+ rounding */
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of table ptrs */
+ Flag *pOverflow /* i/o : oveflow indicator */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PH_DISP_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: post_pro.cpp
+ Functions:
+ Post_Process_reset
+ Post_Process
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the function that performs post-processing on the output
+ speech. Post-processing include filtering the output speech through a second
+ order high pass filter with cutoff frequency of 60 Hz, and up-scaling the
+ output speech by a factor of 2. In addition to the post-processing function
+ itself, a post-processing initialization function, post-processing reset
+ function, and post-processing exit function are also included in this file.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "post_pro.h"
+#include "typedef.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/* filter coefficients (fc = 60 Hz) */
+static const Word16 b[3] = {7699, -15398, 7699};
+static const Word16 a[3] = {8192, 15836, -7667};
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Post_Process_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a structure of type Post_ProcessState
+
+ Outputs:
+ structure pointed to by state will have all its fields initialized
+ to zero
+
+ Returns:
+ return_value = 0, if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function initializes state memory to zero.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ post_pro.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Post_Process_reset (Post_ProcessState *state)
+{
+ if (state == (Post_ProcessState *) NULL){
+ fprint(stderr, "Post_Process_reset: invalid parameter\n");
+ return -1;
+ }
+
+ state->y2_hi = 0;
+ state->y2_lo = 0;
+ state->y1_hi = 0;
+ state->y1_lo = 0;
+ state->x0 = 0;
+ state->x1 = 0;
+
+ return 0;
+}
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Post_Process_reset(Post_ProcessState *state)
+{
+ if (state == (Post_ProcessState *) NULL)
+ {
+ /* fprint(stderr, "Post_Process_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ state->y2_hi = 0;
+ state->y2_lo = 0;
+ state->y1_hi = 0;
+ state->y1_lo = 0;
+ state->x0 = 0;
+ state->x1 = 0;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Post_Process
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type Post_ProcessState
+ signal = buffer containing the input signal (Word16)
+ lg = length of the input signal (Word16)
+ pOverflow = pointer to overflow indicator of type Flag
+
+ Outputs:
+ structure pointed to by st contains new filter input and output values
+ signal buffer contains the HP filtered and up-scaled input signal
+ pOverflow points to 1 if overflow occurs in the math functions called
+ else it points to 0.
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ a = buffer containing filter coefficients
+ b = buffer containing filter coefficients
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs post-processing on the output speech signal. First,
+ the output speech goes through a second order high pass filter with a
+ cutoff frequency of 60 Hz. Then, the filtered output speech is multiplied
+ by a factor of 2. The algorithm implemented follows the following difference
+ equation:
+
+ y[i] = b[0]*x[i]*2 + b[1]*x[i-1]*2 + b[2]*x[i-2]*2 + a[1]*y[i-1] + a[2]*y[i-2];
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ post_pro.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Post_Process (
+ Post_ProcessState *st, //i/o : post process state
+ Word16 signal[], //i/o : signal
+ Word16 lg //i : length of signal
+ )
+{
+ Word16 i, x2;
+ Word32 L_tmp;
+
+ for (i = 0; i < lg; i++)
+ {
+ x2 = st->x1;
+ st->x1 = st->x0;
+ st->x0 = signal[i];
+
+ // y[i] = b[0]*x[i]*2 + b[1]*x[i-1]*2 + b140[2]*x[i-2]/2
+ // + a[1]*y[i-1] + a[2] * y[i-2];
+
+ L_tmp = Mpy_32_16 (st->y1_hi, st->y1_lo, a[1]);
+ L_tmp = L_add (L_tmp, Mpy_32_16 (st->y2_hi, st->y2_lo, a[2]));
+ L_tmp = L_mac (L_tmp, st->x0, b[0]);
+ L_tmp = L_mac (L_tmp, st->x1, b[1]);
+ L_tmp = L_mac (L_tmp, x2, b[2]);
+ L_tmp = L_shl (L_tmp, 2);
+
+ //Multiplication by two of output speech with saturation.
+ signal[i] = pv_round(L_shl(L_tmp, 1));
+
+ st->y2_hi = st->y1_hi;
+ st->y2_lo = st->y1_lo;
+ L_Extract (L_tmp, &st->y1_hi, &st->y1_lo);
+ }
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Post_Process(
+ Post_ProcessState *st, /* i/o : post process state */
+ Word16 signal[], /* i/o : signal */
+ Word16 lg, /* i : length of signal */
+ Flag *pOverflow
+)
+{
+ Word16 i, x2;
+ Word32 L_tmp;
+
+ Word16 *p_signal;
+ Word16 c_a1 = a[1];
+ Word16 c_a2 = a[2];
+ Word16 c_b0 = b[0];
+ Word16 c_b1 = b[1];
+ Word16 c_b2 = b[2];
+
+ p_signal = &signal[0];
+
+ for (i = 0; i < lg; i++)
+ {
+ x2 = st->x1;
+ st->x1 = st->x0;
+ st->x0 = *(p_signal);
+
+ /* y[i] = b[0]*x[i]*2 + b[1]*x[i-1]*2 + b140[2]*x[i-2]/2 */
+ /* + a[1]*y[i-1] + a[2] * y[i-2]; */
+
+ L_tmp = ((Word32) st->y1_hi) * c_a1;
+ L_tmp += (((Word32) st->y1_lo) * c_a1) >> 15;
+ L_tmp += ((Word32) st->y2_hi) * c_a2;
+ L_tmp += (((Word32) st->y2_lo) * c_a2) >> 15;
+ L_tmp += ((Word32) st->x0) * c_b0;
+ L_tmp += ((Word32) st->x1) * c_b1;
+ L_tmp += ((Word32) x2) * c_b2;
+ L_tmp <<= 3;
+
+
+ /* Multiplication by two of output speech with saturation. */
+
+ *(p_signal++) = pv_round(L_shl(L_tmp, 1, pOverflow), pOverflow);
+
+ st->y2_hi = st->y1_hi;
+ st->y2_lo = st->y1_lo;
+
+ st->y1_hi = (Word16)(L_tmp >> 16);
+ st->y1_lo = (Word16)((L_tmp >> 1) - ((Word32) st->y1_hi << 15));
+
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: post_pro.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : post_pro.h
+ Purpose : Postprocessing of output speech.
+
+ - 2nd order high pass filtering with cut
+ off frequency at 60 Hz.
+ - Multiplication of output by two.
+------------------------------------------------------------------------------
+*/
+
+#ifndef _POST_PRO_H_
+#define _POST_PRO_H_
+#define post_pro_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 y2_hi;
+ Word16 y2_lo;
+ Word16 y1_hi;
+ Word16 y1_lo;
+ Word16 x0;
+ Word16 x1;
+ } Post_ProcessState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ Word16 Post_Process_reset(Post_ProcessState *st);
+ /* reset of Post processing state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+ void Post_Process_exit(Post_ProcessState **st);
+ /* de-initialize Post processing state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ void Post_Process(
+ Post_ProcessState *st, /* i/o : post process state */
+ Word16 signal[], /* i/o : signal */
+ Word16 lg, /* i : lenght of signal */
+ Flag *pOverflow
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _POST_PRO_H_ */
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: preemph.cpp
+ Functions:
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Purpose : Preemphasis filtering
+ Description : Filtering through 1 - g z^-1
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "preemph.h"
+#include "typedef.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: preemphasis_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- double pointer to preemphasisState
+
+ Outputs:
+ st -- double ponter to preemphasisState
+
+ Returns:
+ -1 if an error occurs
+ 0 if OK
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Initializes state memory to zero
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ preemph.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 preemphasis_reset(preemphasisState *state)
+{
+ if (state == (preemphasisState *) NULL)
+ {
+ /* fprintf(stderr, "preemphasis_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ state->mem_pre = 0;
+
+ return 0;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: preemphasis
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- Pointer to preemphasisState -- preemphasis filter state
+ signal -- array of type Word16 -- input signal overwritten by the output
+ g -- Word16 -- preemphasis coefficient
+ L -- Word16 -- size of filtering
+
+ Outputs:
+ st -- Pointer to preemphasisState -- preemphasis filter state
+ signal -- array of type Word16 -- input signal overwritten by the output
+ pOverflow -- pointer to type Flag -- overflow indicator
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Filtering through 1 - g z^-1
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ preemph.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+
+void preemphasis(
+ preemphasisState *st, /* (i/o) : preemphasis filter state */
+ Word16 *signal, /* (i/o) : input signal overwritten by the output */
+ Word16 g, /* (i) : preemphasis coefficient */
+ Word16 L, /* (i) : size of filtering */
+ Flag *pOverflow /* (o) : overflow indicator */
+)
+{
+ Word16 *p1;
+ Word16 *p2;
+ Word16 temp;
+ Word16 temp2;
+ Word16 i;
+
+ p1 = signal + L - 1;
+ p2 = p1 - 1;
+ temp = *p1;
+
+ for (i = 0; i <= L - 2; i++)
+ {
+ temp2 = mult(g, *(p2--), pOverflow);
+ *p1 = sub(*p1, temp2, pOverflow);
+
+ p1--;
+ }
+
+ temp2 = mult(g, st->mem_pre, pOverflow);
+
+ *p1 = sub(*p1, temp2, pOverflow);
+
+ st->mem_pre = temp;
+
+ return;
+}
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Filename: preemph.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, preemph.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef preemph_h
+#define preemph_h "$Id $"
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 mem_pre; /* filter state */
+ } preemphasisState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ Word16 preemphasis_reset(preemphasisState *st);
+ /* reset of preemphasis filter (i.e. set state memory to zero)
+ returns 0 on success
+ */
+ void preemphasis_exit(preemphasisState **st);
+ /* de-initialize preemphasis filter (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ void preemphasis(
+ preemphasisState *st, /* (i/o): preemphasis filter state */
+ Word16 *signal, /* (i/o): input signal overwritten by the output */
+ Word16 g, /* (i) : preemphasis coefficient */
+ Word16 L, /* (i) : size of filtering */
+ Flag *pOverflow /* (o) : overflow indicator */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* preemph_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pstfilt.cpp
+ Functions:
+ Post_Filter_reset
+ Post_Filter
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the function that performs adaptive post-filtering on the
+ synthesized speech. It also contains the functions that initialize, reset,
+ and exit the post-filtering function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pstfilt.h"
+#include "typedef.h"
+#include "mode.h"
+#include "basicop_malloc.h"
+#include "basic_op.h"
+#include "weight_a.h"
+#include "residu.h"
+#include "syn_filt.h"
+#include "preemph.h"
+#include "cnst.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define L_H 22 /* size of truncated impulse response of A(z/g1)/A(z/g2) */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/* Spectral expansion factors */
+static const Word16 gamma3_MR122[M] =
+{
+ 22938, 16057, 11240, 7868, 5508,
+ 3856, 2699, 1889, 1322, 925
+};
+
+static const Word16 gamma3[M] =
+{
+ 18022, 9912, 5451, 2998, 1649, 907, 499, 274, 151, 83
+};
+
+static const Word16 gamma4_MR122[M] =
+{
+ 24576, 18432, 13824, 10368, 7776,
+ 5832, 4374, 3281, 2461, 1846
+};
+
+static const Word16 gamma4[M] =
+{
+ 22938, 16057, 11240, 7868, 5508, 3856, 2699, 1889, 1322, 925
+};
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Post_Filter_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to structure of type Post_FilterState
+
+ Outputs:
+ fields of the structure pointed to by state is initialized to zero
+
+ Returns:
+ return_value = 0, if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function initializes the state memory used by the Post_Filter function
+ to zero.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pstfilt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Post_Filter_reset (Post_FilterState *state)
+{
+ if (state == (Post_FilterState *) NULL){
+ fprintf(stderr, "Post_Filter_reset: invalid parameter\n");
+ return -1;
+ }
+
+ Set_zero (state->mem_syn_pst, M);
+ Set_zero (state->res2, L_SUBFR);
+ Set_zero (state->synth_buf, L_FRAME + M);
+ agc_reset(state->agc_state);
+ preemphasis_reset(state->preemph_state);
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Post_Filter_reset(Post_FilterState *state)
+{
+ if (state == (Post_FilterState *) NULL)
+ {
+ /*fprintf(stderr, "Post_Filter_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ oscl_memset(state->mem_syn_pst, 0, sizeof(Word16)*M);
+ oscl_memset(state->res2, 0, sizeof(Word16)*L_SUBFR);
+ oscl_memset(state->synth_buf, 0, sizeof(Word16)*(L_FRAME + M));
+ agc_reset(&(state->agc_state));
+ preemphasis_reset(&(state->preemph_state));
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Post_Filter
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type Post_FilterState
+ mode = AMR mode
+ syn = pointer to a buffer containing synthesized speech; upon
+ exiting this function, it will contain the post-filtered
+ synthesized speech
+ Az_4 = pointer to the interpolated LPC parameters for all subframes
+ pOverflow = pointer to overflow indicator of type Flag
+
+ Outputs:
+ fields of the structure pointed to by st contains the updated field
+ values
+ syn buffer contains the post-filtered synthesized speech
+ pOverflow = 1 if overflow occurrs in the math functions called else
+ it is zero.
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the post-filtering on the synthesized speech. The
+ post-filtering process is described as follows:
+ (1) inverse filtering of syn[] through A(z/0.7) to get res2[]
+ (2) tilt compensation filtering; 1 - MU*k*z^-1
+ (3) synthesis filtering through 1/A(z/0.75)
+ (4) adaptive gain control
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pstfilt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Post_Filter (
+ Post_FilterState *st, // i/o : post filter states
+ enum Mode mode, // i : AMR mode
+ Word16 *syn, // i/o : synthesis speech (postfiltered is output)
+ Word16 *Az_4 // i : interpolated LPC parameters in all subfr.
+)
+{
+ *-------------------------------------------------------------------*
+ * Declaration of parameters *
+ *-------------------------------------------------------------------*
+
+ Word16 Ap3[MP1], Ap4[MP1]; // bandwidth expanded LP parameters
+ Word16 *Az; // pointer to Az_4:
+ // LPC parameters in each subframe
+ Word16 i_subfr; // index for beginning of subframe
+ Word16 h[L_H];
+
+ Word16 i;
+ Word16 temp1, temp2;
+ Word32 L_tmp;
+ Word16 *syn_work = &st->synth_buf[M];
+
+
+ *-----------------------------------------------------*
+ * Post filtering *
+ *-----------------------------------------------------*
+
+ Copy (syn, syn_work , L_FRAME);
+
+ Az = Az_4;
+
+ for (i_subfr = 0; i_subfr < L_FRAME; i_subfr += L_SUBFR)
+ {
+ // Find weighted filter coefficients Ap3[] and ap[4]
+
+ if (sub(mode, MR122) == 0 || sub(mode, MR102) == 0)
+ {
+ Weight_Ai (Az, gamma3_MR122, Ap3);
+ Weight_Ai (Az, gamma4_MR122, Ap4);
+ }
+ else
+ {
+ Weight_Ai (Az, gamma3, Ap3);
+ Weight_Ai (Az, gamma4, Ap4);
+ }
+
+ // filtering of synthesis speech by A(z/0.7) to find res2[]
+
+ Residu (Ap3, &syn_work[i_subfr], st->res2, L_SUBFR);
+
+ // tilt compensation filter
+
+ // impulse response of A(z/0.7)/A(z/0.75)
+
+ Copy (Ap3, h, M + 1);
+ Set_zero (&h[M + 1], L_H - M - 1);
+ Syn_filt (Ap4, h, h, L_H, &h[M + 1], 0);
+
+ // 1st correlation of h[]
+
+ L_tmp = L_mult (h[0], h[0]);
+ for (i = 1; i < L_H; i++)
+ {
+ L_tmp = L_mac (L_tmp, h[i], h[i]);
+ }
+ temp1 = extract_h (L_tmp);
+
+ L_tmp = L_mult (h[0], h[1]);
+ for (i = 1; i < L_H - 1; i++)
+ {
+ L_tmp = L_mac (L_tmp, h[i], h[i + 1]);
+ }
+ temp2 = extract_h (L_tmp);
+
+ if (temp2 <= 0)
+ {
+ temp2 = 0;
+ }
+ else
+ {
+ temp2 = mult (temp2, MU);
+ temp2 = div_s (temp2, temp1);
+ }
+
+ preemphasis (st->preemph_state, st->res2, temp2, L_SUBFR);
+
+ // filtering through 1/A(z/0.75)
+
+ Syn_filt (Ap4, st->res2, &syn[i_subfr], L_SUBFR, st->mem_syn_pst, 1);
+
+ // scale output to input
+
+ agc (st->agc_state, &syn_work[i_subfr], &syn[i_subfr],
+ AGC_FAC, L_SUBFR);
+
+ Az += MP1;
+ }
+
+ // update syn_work[] buffer
+
+ Copy (&syn_work[L_FRAME - M], &syn_work[-M], M);
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Post_Filter(
+ Post_FilterState *st, /* i/o : post filter states */
+ enum Mode mode, /* i : AMR mode */
+ Word16 *syn, /* i/o : synthesis speech (postfiltered is output) */
+ Word16 *Az_4, /* i : interpolated LPC parameters in all subfr. */
+ Flag *pOverflow
+)
+{
+ Word16 Ap3[MP1];
+ Word16 Ap4[MP1]; /* bandwidth expanded LP parameters */
+ Word16 *Az; /* pointer to Az_4: */
+ /* LPC parameters in each subframe */
+ register Word16 i_subfr; /* index for beginning of subframe */
+ Word16 h[L_H];
+
+ register Word16 i;
+ Word16 temp1;
+ Word16 temp2;
+ Word32 L_tmp;
+ Word32 L_tmp2;
+ Word16 *syn_work = &st->synth_buf[M];
+
+
+ /*-----------------------------------------------------*
+ * Post filtering *
+ *-----------------------------------------------------*/
+
+ oscl_memmove((void *)syn_work , syn, L_FRAME*sizeof(*syn));
+
+ Az = Az_4;
+
+ for (i_subfr = 0; i_subfr < L_FRAME; i_subfr += L_SUBFR)
+ {
+ /* Find weighted filter coefficients Ap3[] and ap[4] */
+
+ if (mode == MR122 || mode == MR102)
+ {
+ Weight_Ai(Az, gamma3_MR122, Ap3);
+ Weight_Ai(Az, gamma4_MR122, Ap4);
+ }
+ else
+ {
+ Weight_Ai(Az, gamma3, Ap3);
+ Weight_Ai(Az, gamma4, Ap4);
+ }
+
+ /* filtering of synthesis speech by A(z/0.7) to find res2[] */
+
+ Residu(Ap3, &syn_work[i_subfr], st->res2, L_SUBFR);
+
+ /* tilt compensation filter */
+
+ /* impulse response of A(z/0.7)/A(z/0.75) */
+
+ oscl_memmove((void *)h, Ap3, (M + 1)*sizeof(*Ap3));
+ oscl_memset(&h[M + 1], 0, sizeof(Word16)*(L_H - M - 1));
+ Syn_filt(Ap4, h, h, L_H, &h[M + 1], 0);
+
+ /* 1st correlation of h[] */
+
+ L_tmp = 0;
+
+ for (i = L_H - 1; i >= 0; i--)
+ {
+ L_tmp2 = ((Word32) h[i]) * h[i];
+
+ if (L_tmp2 != (Word32) 0x40000000L)
+ {
+ L_tmp2 = L_tmp2 << 1;
+ }
+ else
+ {
+ *pOverflow = 1;
+ L_tmp2 = MAX_32;
+ break;
+ }
+
+ L_tmp = L_add(L_tmp, L_tmp2, pOverflow);
+ }
+ temp1 = (Word16)(L_tmp >> 16);
+
+ L_tmp = 0;
+
+ for (i = L_H - 2; i >= 0; i--)
+ {
+ L_tmp2 = ((Word32) h[i]) * h[i + 1];
+
+ if (L_tmp2 != (Word32) 0x40000000L)
+ {
+ L_tmp2 = L_tmp2 << 1;
+ }
+ else
+ {
+ *pOverflow = 1;
+ L_tmp2 = MAX_32;
+ break;
+ }
+
+ L_tmp = L_add(L_tmp, L_tmp2, pOverflow);
+ }
+ temp2 = (Word16)(L_tmp >> 16);
+
+ if (temp2 <= 0)
+ {
+ temp2 = 0;
+ }
+ else
+ {
+ L_tmp = (((Word32) temp2) * MU) >> 15;
+
+ /* Sign-extend product */
+ if (L_tmp & (Word32) 0x00010000L)
+ {
+ L_tmp = L_tmp | (Word32) 0xffff0000L;
+ }
+ temp2 = (Word16) L_tmp;
+
+ temp2 = div_s(temp2, temp1);
+ }
+
+ preemphasis(&(st->preemph_state), st->res2, temp2, L_SUBFR, pOverflow);
+
+ /* filtering through 1/A(z/0.75) */
+
+ Syn_filt(Ap4, st->res2, &syn[i_subfr], L_SUBFR, st->mem_syn_pst, 1);
+
+ /* scale output to input */
+
+ agc(&(st->agc_state), &syn_work[i_subfr], &syn[i_subfr],
+ AGC_FAC, L_SUBFR, pOverflow);
+
+ Az += MP1;
+ }
+
+ /* update syn_work[] buffer */
+
+ oscl_memmove((void *)&syn_work[-M], &syn_work[L_FRAME - M], M*sizeof(*syn_work));
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pstfilt.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : pstfilt.h
+ Purpose : Performs adaptive postfiltering on the synthesis
+ : speech
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _PSTFILT_H_
+#define _PSTFILT_H_
+#define pstfilt_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "cnst.h"
+#include "preemph.h"
+#include "agc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 res2[L_SUBFR];
+ Word16 mem_syn_pst[M];
+ preemphasisState preemph_state;
+ agcState agc_state;
+ Word16 synth_buf[M + L_FRAME];
+ } Post_FilterState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ Word16 Post_Filter_reset(Post_FilterState *st);
+ /* reset post filter (i.e. set state memory to zero)
+ returns 0 on success
+ */
+
+ void Post_Filter(
+ Post_FilterState *st, /* i/o : post filter states */
+ enum Mode mode, /* i : AMR mode */
+ Word16 *syn, /* i/o : synthesis speech (postfiltered is output) */
+ Word16 *Az_4, /* i : interpolated LPC parameters in all subfr. */
+ Flag *pOverflow
+ );
+ /* filters the signal syn using the parameters in Az_4 to calculate filter
+ coefficients.
+ The filter must be set up using Post_Filter_init prior to the first call
+ to Post_Filter. Post_FilterState is updated to mirror the current state
+ of the filter
+
+ return 0 on success
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PSTFILT_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+
+#include "PVGSMAMRDecoder.h"
+
+
+/////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF CPVGSMAMRDecoder::CPVGSMAMRDecoder()
+{
+}
+
+
+/////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF CPVGSMAMRDecoder::~CPVGSMAMRDecoder()
+{
+ delete iDecState;
+ iDecState = NULL;
+}
+
+
+/////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF int32 CPVGSMAMRDecoder::InitDecoder(void)
+{
+ return GSMInitDecode(&iDecState, (int8*)"Decoder");
+}
+
+
+/////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF int32 CPVGSMAMRDecoder::DecodeFrame(Frame_Type_3GPP aType,
+ uint8* aCompressedBlock,
+ uint8* aAudioBuffer,
+ int32 aFormat)
+{
+ return AMRDecode(iDecState, aType, aCompressedBlock, (Word16*)aAudioBuffer, (Word16) aFormat);
+}
+
+
+/////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF int32 CPVGSMAMRDecoder::ResetDecoder(void)
+{
+ return Speech_Decode_Frame_reset(iDecState);
+}
+
+
+/////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF void CPVGSMAMRDecoder::TerminateDecoder(void)
+{
+ GSMDecodeFrameExit(&iDecState);
+ iDecState = NULL;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+
+#ifndef __PVGSMAMRDECODER_H
+#define __PVGSMAMRDECODER_H
+
+#include "oscl_base.h"
+
+#include "gsmamr_dec.h"
+
+// PVGSMAMRDecoder
+class CPVGSMAMRDecoder
+{
+ public:
+ OSCL_IMPORT_REF CPVGSMAMRDecoder();
+ OSCL_IMPORT_REF ~CPVGSMAMRDecoder();
+
+ OSCL_IMPORT_REF int32 InitDecoder(void);
+ OSCL_IMPORT_REF int32 DecodeFrame(Frame_Type_3GPP aType,
+ uint8* aCompressedBlock,
+ uint8* aAudioBuffer,
+ int32 aFormat);
+ OSCL_IMPORT_REF int32 ResetDecoder(void);
+ OSCL_IMPORT_REF void TerminateDecoder(void);
+
+ private:
+ void* iDecState;
+};
+
+#endif
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+
+#ifndef __PVGSMAMRDECODER_H
+#define __PVGSMAMRDECODER_H
+
+#include "oscl_base.h"
+
+#include "gsmamr_dec.h"
+#include "gsmamrdpidecoder.h"
+
+// PVGSMAMRDecoder
+class CPVGSMAMRDecoder
+{
+ public:
+ OSCL_IMPORT_REF CPVGSMAMRDecoder();
+ OSCL_IMPORT_REF ~CPVGSMAMRDecoder();
+
+ OSCL_IMPORT_REF int32 InitDecoder(void);
+ OSCL_IMPORT_REF int32 DecodeFrame(Frame_Type_3GPP aType,
+ uint8* aCompressedBlock,
+ uint8* aAudioBuffer,
+ int32 aFormat);
+ OSCL_IMPORT_REF int32 ResetDecoder(void);
+ OSCL_IMPORT_REF void TerminateDecoder(void);
+
+ private:
+ void* iDecState;
+ CPvGsmAmrDPIDecoder *iDecoder;
+};
+
+#endif
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+
+
+ Filename: qgain475_tab.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "qgain475_tab.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+
+ /* The table contains the following data:
+ *
+ * g_pitch(0) (Q14) // for sub-
+ * g_fac(0) (Q12) // frame 0 and 2
+ * g_pitch(1) (Q14) // for sub-
+ * g_fac(2) (Q12) // frame 1 and 3
+ *
+ */
+ const Word16 table_gain_MR475[MR475_VQ_SIZE*4] =
+ {
+ /*g_pit(0), g_fac(0), g_pit(1), g_fac(1) */
+ 812, 128, 542, 140,
+ 2873, 1135, 2266, 3402,
+ 2067, 563, 12677, 647,
+ 4132, 1798, 5601, 5285,
+ 7689, 374, 3735, 441,
+ 10912, 2638, 11807, 2494,
+ 20490, 797, 5218, 675,
+ 6724, 8354, 5282, 1696,
+ 1488, 428, 5882, 452,
+ 5332, 4072, 3583, 1268,
+ 2469, 901, 15894, 1005,
+ 14982, 3271, 10331, 4858,
+ 3635, 2021, 2596, 835,
+ 12360, 4892, 12206, 1704,
+ 13432, 1604, 9118, 2341,
+ 3968, 1538, 5479, 9936,
+ 3795, 417, 1359, 414,
+ 3640, 1569, 7995, 3541,
+ 11405, 645, 8552, 635,
+ 4056, 1377, 16608, 6124,
+ 11420, 700, 2007, 607,
+ 12415, 1578, 11119, 4654,
+ 13680, 1708, 11990, 1229,
+ 7996, 7297, 13231, 5715,
+ 2428, 1159, 2073, 1941,
+ 6218, 6121, 3546, 1804,
+ 8925, 1802, 8679, 1580,
+ 13935, 3576, 13313, 6237,
+ 6142, 1130, 5994, 1734,
+ 14141, 4662, 11271, 3321,
+ 12226, 1551, 13931, 3015,
+ 5081, 10464, 9444, 6706,
+ 1689, 683, 1436, 1306,
+ 7212, 3933, 4082, 2713,
+ 7793, 704, 15070, 802,
+ 6299, 5212, 4337, 5357,
+ 6676, 541, 6062, 626,
+ 13651, 3700, 11498, 2408,
+ 16156, 716, 12177, 751,
+ 8065, 11489, 6314, 2256,
+ 4466, 496, 7293, 523,
+ 10213, 3833, 8394, 3037,
+ 8403, 966, 14228, 1880,
+ 8703, 5409, 16395, 4863,
+ 7420, 1979, 6089, 1230,
+ 9371, 4398, 14558, 3363,
+ 13559, 2873, 13163, 1465,
+ 5534, 1678, 13138, 14771,
+ 7338, 600, 1318, 548,
+ 4252, 3539, 10044, 2364,
+ 10587, 622, 13088, 669,
+ 14126, 3526, 5039, 9784,
+ 15338, 619, 3115, 590,
+ 16442, 3013, 15542, 4168,
+ 15537, 1611, 15405, 1228,
+ 16023, 9299, 7534, 4976,
+ 1990, 1213, 11447, 1157,
+ 12512, 5519, 9475, 2644,
+ 7716, 2034, 13280, 2239,
+ 16011, 5093, 8066, 6761,
+ 10083, 1413, 5002, 2347,
+ 12523, 5975, 15126, 2899,
+ 18264, 2289, 15827, 2527,
+ 16265, 10254, 14651, 11319,
+ 1797, 337, 3115, 397,
+ 3510, 2928, 4592, 2670,
+ 7519, 628, 11415, 656,
+ 5946, 2435, 6544, 7367,
+ 8238, 829, 4000, 863,
+ 10032, 2492, 16057, 3551,
+ 18204, 1054, 6103, 1454,
+ 5884, 7900, 18752, 3468,
+ 1864, 544, 9198, 683,
+ 11623, 4160, 4594, 1644,
+ 3158, 1157, 15953, 2560,
+ 12349, 3733, 17420, 5260,
+ 6106, 2004, 2917, 1742,
+ 16467, 5257, 16787, 1680,
+ 17205, 1759, 4773, 3231,
+ 7386, 6035, 14342, 10012,
+ 4035, 442, 4194, 458,
+ 9214, 2242, 7427, 4217,
+ 12860, 801, 11186, 825,
+ 12648, 2084, 12956, 6554,
+ 9505, 996, 6629, 985,
+ 10537, 2502, 15289, 5006,
+ 12602, 2055, 15484, 1653,
+ 16194, 6921, 14231, 5790,
+ 2626, 828, 5615, 1686,
+ 13663, 5778, 3668, 1554,
+ 11313, 2633, 9770, 1459,
+ 14003, 4733, 15897, 6291,
+ 6278, 1870, 7910, 2285,
+ 16978, 4571, 16576, 3849,
+ 15248, 2311, 16023, 3244,
+ 14459, 17808, 11847, 2763,
+ 1981, 1407, 1400, 876,
+ 4335, 3547, 4391, 4210,
+ 5405, 680, 17461, 781,
+ 6501, 5118, 8091, 7677,
+ 7355, 794, 8333, 1182,
+ 15041, 3160, 14928, 3039,
+ 20421, 880, 14545, 852,
+ 12337, 14708, 6904, 1920,
+ 4225, 933, 8218, 1087,
+ 10659, 4084, 10082, 4533,
+ 2735, 840, 20657, 1081,
+ 16711, 5966, 15873, 4578,
+ 10871, 2574, 3773, 1166,
+ 14519, 4044, 20699, 2627,
+ 15219, 2734, 15274, 2186,
+ 6257, 3226, 13125, 19480,
+ 7196, 930, 2462, 1618,
+ 4515, 3092, 13852, 4277,
+ 10460, 833, 17339, 810,
+ 16891, 2289, 15546, 8217,
+ 13603, 1684, 3197, 1834,
+ 15948, 2820, 15812, 5327,
+ 17006, 2438, 16788, 1326,
+ 15671, 8156, 11726, 8556,
+ 3762, 2053, 9563, 1317,
+ 13561, 6790, 12227, 1936,
+ 8180, 3550, 13287, 1778,
+ 16299, 6599, 16291, 7758,
+ 8521, 2551, 7225, 2645,
+ 18269, 7489, 16885, 2248,
+ 17882, 2884, 17265, 3328,
+ 9417, 20162, 11042, 8320,
+ 1286, 620, 1431, 583,
+ 5993, 2289, 3978, 3626,
+ 5144, 752, 13409, 830,
+ 5553, 2860, 11764, 5908,
+ 10737, 560, 5446, 564,
+ 13321, 3008, 11946, 3683,
+ 19887, 798, 9825, 728,
+ 13663, 8748, 7391, 3053,
+ 2515, 778, 6050, 833,
+ 6469, 5074, 8305, 2463,
+ 6141, 1865, 15308, 1262,
+ 14408, 4547, 13663, 4515,
+ 3137, 2983, 2479, 1259,
+ 15088, 4647, 15382, 2607,
+ 14492, 2392, 12462, 2537,
+ 7539, 2949, 12909, 12060,
+ 5468, 684, 3141, 722,
+ 5081, 1274, 12732, 4200,
+ 15302, 681, 7819, 592,
+ 6534, 2021, 16478, 8737,
+ 13364, 882, 5397, 899,
+ 14656, 2178, 14741, 4227,
+ 14270, 1298, 13929, 2029,
+ 15477, 7482, 15815, 4572,
+ 2521, 2013, 5062, 1804,
+ 5159, 6582, 7130, 3597,
+ 10920, 1611, 11729, 1708,
+ 16903, 3455, 16268, 6640,
+ 9306, 1007, 9369, 2106,
+ 19182, 5037, 12441, 4269,
+ 15919, 1332, 15357, 3512,
+ 11898, 14141, 16101, 6854,
+ 2010, 737, 3779, 861,
+ 11454, 2880, 3564, 3540,
+ 9057, 1241, 12391, 896,
+ 8546, 4629, 11561, 5776,
+ 8129, 589, 8218, 588,
+ 18728, 3755, 12973, 3149,
+ 15729, 758, 16634, 754,
+ 15222, 11138, 15871, 2208,
+ 4673, 610, 10218, 678,
+ 15257, 4146, 5729, 3327,
+ 8377, 1670, 19862, 2321,
+ 15450, 5511, 14054, 5481,
+ 5728, 2888, 7580, 1346,
+ 14384, 5325, 16236, 3950,
+ 15118, 3744, 15306, 1435,
+ 14597, 4070, 12301, 15696,
+ 7617, 1699, 2170, 884,
+ 4459, 4567, 18094, 3306,
+ 12742, 815, 14926, 907,
+ 15016, 4281, 15518, 8368,
+ 17994, 1087, 2358, 865,
+ 16281, 3787, 15679, 4596,
+ 16356, 1534, 16584, 2210,
+ 16833, 9697, 15929, 4513,
+ 3277, 1085, 9643, 2187,
+ 11973, 6068, 9199, 4462,
+ 8955, 1629, 10289, 3062,
+ 16481, 5155, 15466, 7066,
+ 13678, 2543, 5273, 2277,
+ 16746, 6213, 16655, 3408,
+ 20304, 3363, 18688, 1985,
+ 14172, 12867, 15154, 15703,
+ 4473, 1020, 1681, 886,
+ 4311, 4301, 8952, 3657,
+ 5893, 1147, 11647, 1452,
+ 15886, 2227, 4582, 6644,
+ 6929, 1205, 6220, 799,
+ 12415, 3409, 15968, 3877,
+ 19859, 2109, 9689, 2141,
+ 14742, 8830, 14480, 2599,
+ 1817, 1238, 7771, 813,
+ 19079, 4410, 5554, 2064,
+ 3687, 2844, 17435, 2256,
+ 16697, 4486, 16199, 5388,
+ 8028, 2763, 3405, 2119,
+ 17426, 5477, 13698, 2786,
+ 19879, 2720, 9098, 3880,
+ 18172, 4833, 17336, 12207,
+ 5116, 996, 4935, 988,
+ 9888, 3081, 6014, 5371,
+ 15881, 1667, 8405, 1183,
+ 15087, 2366, 19777, 7002,
+ 11963, 1562, 7279, 1128,
+ 16859, 1532, 15762, 5381,
+ 14708, 2065, 20105, 2155,
+ 17158, 8245, 17911, 6318,
+ 5467, 1504, 4100, 2574,
+ 17421, 6810, 5673, 2888,
+ 16636, 3382, 8975, 1831,
+ 20159, 4737, 19550, 7294,
+ 6658, 2781, 11472, 3321,
+ 19397, 5054, 18878, 4722,
+ 16439, 2373, 20430, 4386,
+ 11353, 26526, 11593, 3068,
+ 2866, 1566, 5108, 1070,
+ 9614, 4915, 4939, 3536,
+ 7541, 878, 20717, 851,
+ 6938, 4395, 16799, 7733,
+ 10137, 1019, 9845, 964,
+ 15494, 3955, 15459, 3430,
+ 18863, 982, 20120, 963,
+ 16876, 12887, 14334, 4200,
+ 6599, 1220, 9222, 814,
+ 16942, 5134, 5661, 4898,
+ 5488, 1798, 20258, 3962,
+ 17005, 6178, 17929, 5929,
+ 9365, 3420, 7474, 1971,
+ 19537, 5177, 19003, 3006,
+ 16454, 3788, 16070, 2367,
+ 8664, 2743, 9445, 26358,
+ 10856, 1287, 3555, 1009,
+ 5606, 3622, 19453, 5512,
+ 12453, 797, 20634, 911,
+ 15427, 3066, 17037, 10275,
+ 18883, 2633, 3913, 1268,
+ 19519, 3371, 18052, 5230,
+ 19291, 1678, 19508, 3172,
+ 18072, 10754, 16625, 6845,
+ 3134, 2298, 10869, 2437,
+ 15580, 6913, 12597, 3381,
+ 11116, 3297, 16762, 2424,
+ 18853, 6715, 17171, 9887,
+ 12743, 2605, 8937, 3140,
+ 19033, 7764, 18347, 3880,
+ 20475, 3682, 19602, 3380,
+ 13044, 19373, 10526, 23124
+ };
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] qua_gain.tab, UMTS GSM AMR speech codec,
+ R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: sp_dec.cpp
+ Functions: GSMInitDecode
+ Speech_Decode_Frame_reset
+ GSMDecodeFrameExit
+ GSMFrameDecode
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the functions that initialize, invoke, reset, and exit
+ the GSM AMR decoder.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "sp_dec.h"
+#include "typedef.h"
+#include "cnst.h"
+#include "dec_amr.h"
+#include "pstfilt.h"
+#include "mode.h"
+#include "post_pro.h"
+#include "oscl_mem.h"
+#include "bitno_tab.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Bin2int
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ no_of_bits = number of bits associated with value
+ bitstream = pointer to buffer where bits are read
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : Bin2int
+ Purpose : Read "no_of_bits" bits from the array bitstream[]
+ and convert to integer.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ bits2prm.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static Word16 Bin2int ( // Reconstructed parameter
+ Word16 no_of_bits, // input : number of bits associated with value
+ Word16 *bitstream // output: address where bits are written
+)
+{
+ Word16 value, i, bit;
+
+ value = 0;
+ for (i = 0; i < no_of_bits; i++)
+ {
+ value = shl (value, 1);
+ bit = *bitstream++;
+ if (sub (bit, BIT_1) == 0)
+ value = add (value, 1);
+ }
+ return (value);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+static Word16 Bin2int( /* Reconstructed parameter */
+ Word16 no_of_bits, /* input : number of bits associated with value */
+ Word16 *bitstream /* input: address where bits are read from */
+)
+{
+ Word16 value;
+ Word16 i;
+ Word16 single_bit;
+
+ value = 0;
+ for (i = 0; i < no_of_bits; i++)
+ {
+ value <<= 1;
+ single_bit = *(bitstream++);
+ value |= single_bit;
+ }
+ return (value);
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: bits2prm
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ mode = AMR mode of type enum Mode
+ bits[] = pointer to serial bits of type Word16
+ prm[] = pointer to analysis parameters of type Word16
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : Bits2prm
+ Purpose : Retrieves the vector of encoder parameters from
+ the received serial bits in a frame.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ bits2prm.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Bits2prm (
+ enum Mode mode, // i : AMR mode
+ Word16 bits[], // i : serial bits (size <= MAX_SERIAL_SIZE)
+ Word16 prm[] // o : analysis parameters (size <= MAX_PRM_SIZE)
+)
+{
+ Word16 i;
+
+ for (i = 0; i < prmno[mode]; i++)
+ {
+ prm[i] = Bin2int (bitno[mode][i], bits);
+ bits += bitno[mode][i];
+ add(0,0); // account for above pointer update
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void Bits2prm(
+ enum Mode mode, /* i : AMR mode */
+ Word16 bits[], /* i : serial bits (size <= MAX_SERIAL_SIZE) */
+ Word16 prm[], /* o : analysis parameters (size <= MAX_PRM_SIZE) */
+ CommonAmrTbls* common_amr_tbls /* i : ptr to strcut of table ptrs */
+)
+{
+ Word16 i;
+ const Word16* prmno_ptr = common_amr_tbls->prmno_ptr;
+ const Word16* const* bitno_ptr = common_amr_tbls->bitno_ptr;
+
+
+ for (i = 0; i < prmno_ptr[mode]; i++)
+ {
+ prm[i] = Bin2int(bitno_ptr[mode][i], bits);
+ bits += bitno_ptr[mode][i];
+ }
+
+ return;
+}
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: GSMInitDecode
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to an array of pointers to structures of type
+ Speech_Decode_FrameState
+ no_hp_post_MR122 = flag to turn off high-pass post filter for 12.2 kbps
+ mode (Flag)
+ id = pointer to an array whose contents are of type char
+
+ Outputs:
+ decoder_amrState field of the structure pointed to by the pointer pointed
+ to by state is set to NULL
+ post_state field of the structure pointed to by the pointer pointed to
+ by state is set to NULL
+ postHP_state field of the structure pointed to by the pointer pointed to
+ by state is set to NULL
+ no_hp_post_MR122 field of the structure pointed to by the pointer pointed
+ to by state is set to the input no_hp_post_MR122
+
+ Returns:
+ return_value = set to zero, if initialization was successful; -1,
+ otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function allocates memory for filter structure and initializes state
+ memory used by the GSM AMR decoder.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sp_dec.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Note: Original function name of Speech_Decode_Frame_init was changed to
+ GSMInitDecode in the Code section.
+
+int Speech_Decode_Frame_init (Speech_Decode_FrameState **state,
+ char *id)
+{
+ Speech_Decode_FrameState* s;
+
+ if (state == (Speech_Decode_FrameState **) NULL){
+ fprintf(stderr, "Speech_Decode_Frame_init: invalid parameter\n");
+ return -1;
+ }
+ *state = NULL;
+
+ // allocate memory
+ if ((s= (Speech_Decode_FrameState *)
+ malloc(sizeof(Speech_Decode_FrameState))) == NULL) {
+ fprintf(stderr, "Speech_Decode_Frame_init: can not malloc state "
+ "structure\n");
+ return -1;
+ }
+ s->decoder_amrState = NULL;
+ s->post_state = NULL;
+ s->postHP_state = NULL;
+
+ if (Decoder_amr_init(&s->decoder_amrState) ||
+ Post_Filter_init(&s->post_state) ||
+ Post_Process_init(&s->postHP_state) ) {
+ Speech_Decode_Frame_exit(&s);
+ return -1;
+ }
+
+ s->complexityCounter = getCounterId(id);
+
+ Speech_Decode_Frame_reset(s);
+ *state = s;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 GSMInitDecode(void **state_data,
+ Word8 * id)
+{
+ Speech_Decode_FrameState* s;
+ OSCL_UNUSED_ARG(id);
+
+ if (state_data == NULL)
+ {
+ /* fprintf(stderr, "Speech_Decode_Frame_init:
+ invalid parameter\n"); */
+ return (-1);
+ }
+ *state_data = NULL;
+
+ /* allocate memory */
+ if ((s = (Speech_Decode_FrameState *)
+ oscl_malloc(sizeof(Speech_Decode_FrameState))) == NULL)
+ {
+ /* fprintf(stderr, "Speech_Decode_Frame_init: can not malloc state "
+ "structure\n"); */
+ return (-1);
+ }
+
+ if (Decoder_amr_init(&s->decoder_amrState)
+ || Post_Process_reset(&s->postHP_state))
+ {
+ Speech_Decode_FrameState *tmp = s;
+ /*
+ * dereferencing type-punned pointer avoid
+ * breaking strict-aliasing rules
+ */
+ void** tempVoid = (void**) tmp;
+ GSMDecodeFrameExit(tempVoid);
+ return (-1);
+ }
+
+
+ Speech_Decode_Frame_reset(s);
+ *state_data = (void *)s;
+
+ return (0);
+}
+
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Speech_Decode_Frame_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to structures of type Speech_Decode_FrameState
+
+ Outputs:
+ None
+
+ Returns:
+ return_value = set to zero if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function resets the state memory used by the GSM AMR decoder.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sp_dec.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Speech_Decode_Frame_reset (Speech_Decode_FrameState *state)
+{
+ if (state == (Speech_Decode_FrameState *) NULL){
+ fprintf(stderr, "Speech_Decode_Frame_reset: invalid parameter\n");
+ return -1;
+ }
+
+ Decoder_amr_reset(state->decoder_amrState, (enum Mode)0);
+ Post_Filter_reset(state->post_state);
+ Post_Process_reset(state->postHP_state);
+
+ state->prev_mode = (enum Mode)0;
+
+ setCounter(state->complexityCounter);
+ Init_WMOPS_counter();
+ setCounter(0); // set counter to global counter
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 Speech_Decode_Frame_reset(void *state_data)
+{
+
+ Speech_Decode_FrameState *state =
+ (Speech_Decode_FrameState *) state_data;
+
+ if (state_data == NULL)
+ {
+ /* fprintf(stderr, "Speech_Decode_Frame_reset:
+ invalid parameter\n"); */
+ return (-1);
+ }
+
+ Decoder_amr_reset(&(state->decoder_amrState), MR475);
+ Post_Filter_reset(&(state->post_state));
+ Post_Process_reset(&(state->postHP_state));
+
+ state->prev_mode = MR475;
+
+ return (0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: GSMDecodeFrameExit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to an array of pointers to structures of type
+ Speech_Decode_FrameState
+
+ Outputs:
+ state contents is set to NULL
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function frees up the memory used for the state memory of the GSM AMR
+ decoder.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sp_dec.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Note: The original function name of Speech_Decode_Frame_exit was changed to
+ GSMDecodeFrameExit in the Code section.
+
+void Speech_Decode_Frame_exit (Speech_Decode_FrameState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ Decoder_amr_exit(&(*state)->decoder_amrState);
+ Post_Filter_exit(&(*state)->post_state);
+ Post_Process_exit(&(*state)->postHP_state);
+
+ setCounter((*state)->complexityCounter);
+ WMOPS_output(0);
+ setCounter(0); // set counter to global counter
+
+ // deallocate memory
+ free(*state);
+ *state = NULL;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void GSMDecodeFrameExit(void **state_data)
+{
+
+ Speech_Decode_FrameState **state =
+ (Speech_Decode_FrameState **) state_data;
+
+ if (state == NULL || *state == NULL)
+ {
+ return;
+ }
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: GSMFrameDecode
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to structures of type Speech_Decode_FrameState
+ mode = GSM AMR codec mode (enum Mode)
+ serial = pointer to the serial bit stream buffer (unsigned char)
+ frame_type = GSM AMR receive frame type (enum RXFrameType)
+ synth = pointer to the output synthesis speech buffer (Word16)
+
+ Outputs:
+ synth contents are truncated to 13 bits if NO13BIT is not defined,
+ otherwise, its contents are left at 16 bits
+
+ Returns:
+ return_value = set to zero (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function is the entry point to the GSM AMR decoder. The following
+ operations are performed on one received frame: First, the codec
+ parameters are parsed from the buffer pointed to by serial according to
+ frame_type. Then the AMR decoder is invoked via a call to Decoder_amr. Post
+ filtering of the decoded data is done via a call to Post_Filter function.
+ Lastly, the decoded data is post-processed via a call to Post_Process
+ function. If NO13BIT is not defined, the contents of the buffer pointed to
+ by synth is truncated to 13 bits. It remains unchanged otherwise.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sp_dec.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Note: The original function name of Speech_Decode_Frame_exit was changed to
+ GSMFrameDecode in the Code section.
+
+int Speech_Decode_Frame (
+ Speech_Decode_FrameState *st, // io: post filter states
+ enum Mode mode, // i : AMR mode
+ Word16 *serial, // i : serial bit stream
+ enum RXFrameType frame_type, // i : Frame type
+ Word16 *synth // o : synthesis speech (postfiltered
+ // output)
+)
+{
+ Word16 parm[MAX_PRM_SIZE + 1]; // Synthesis parameters
+ Word16 Az_dec[AZ_SIZE]; // Decoded Az for post-filter
+ // in 4 subframes
+
+#if !defined(NO13BIT)
+ Word16 i;
+#endif
+
+ setCounter(st->complexityCounter);
+ Reset_WMOPS_counter (); // reset WMOPS counter for the new frame
+
+ // Serial to parameters
+ if ((frame_type == RX_SID_BAD) ||
+ (frame_type == RX_SID_UPDATE)) {
+ // Override mode to MRDTX
+ Bits2prm (MRDTX, serial, parm);
+ } else {
+ Bits2prm (mode, serial, parm);
+ }
+
+ // Synthesis
+ Decoder_amr(st->decoder_amrState, mode, parm, frame_type,
+ synth, Az_dec);
+
+ Post_Filter(st->post_state, mode, synth, Az_dec); // Post-filter
+
+ // post HP filter, and 15->16 bits
+ Post_Process(st->postHP_state, synth, L_FRAME);
+
+#if !defined(NO13BIT)
+ // Truncate to 13 bits
+ for (i = 0; i < L_FRAME; i++)
+ {
+ synth[i] = synth[i] & 0xfff8;
+ }
+#endif
+
+ setCounter(0); // set counter to global counter
+
+ return 0;
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void GSMFrameDecode(
+ Speech_Decode_FrameState *st, /* io: post filter states */
+ enum Mode mode, /* i : AMR mode */
+ Word16 *serial, /* i : serial bit stream */
+ enum RXFrameType frame_type, /* i : Frame type */
+ Word16 *synth) /* o : synthesis speech (postfiltered */
+/* output) */
+
+{
+ Word16 parm[MAX_PRM_SIZE + 1]; /* Synthesis parameters */
+ Word16 Az_dec[AZ_SIZE]; /* Decoded Az for post-filter */
+ /* in 4 subframes */
+ Flag *pOverflow = &(st->decoder_amrState.overflow); /* Overflow flag */
+
+#if !defined(NO13BIT)
+ Word16 i;
+#endif
+
+ /* Serial to parameters */
+ if ((frame_type == RX_SID_BAD) ||
+ (frame_type == RX_SID_UPDATE))
+ {
+ /* Override mode to MRDTX */
+ Bits2prm(MRDTX, serial, parm, &st->decoder_amrState.common_amr_tbls);
+ }
+ else
+ {
+ Bits2prm(mode, serial, parm, &st->decoder_amrState.common_amr_tbls);
+ }
+
+ /* Synthesis */
+ Decoder_amr(
+ &(st->decoder_amrState),
+ mode,
+ parm,
+ frame_type,
+ synth,
+ Az_dec);
+
+ /* Post-filter */
+ Post_Filter(
+ &(st->post_state),
+ mode,
+ synth,
+ Az_dec,
+ pOverflow);
+
+ /* post HP filter, and 15->16 bits */
+ Post_Process(
+ &(st->postHP_state),
+ synth,
+ L_FRAME,
+ pOverflow);
+
+#if !defined(NO13BIT)
+ /* Truncate to 13 bits */
+ for (i = 0; i < L_FRAME; i++)
+ {
+ synth[i] = synth[i] & 0xfff8;
+ }
+#endif
+
+ return;
+}
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+*****************************************************************************
+*
+* GSM AMR speech codec Version 2.0.0 February 8, 1999
+*
+*****************************************************************************
+*
+* File : sp_dec.h
+* Purpose : Decoding and post filtering of one speech frame.
+*
+
+ Description: Replaced "int" and/or "char" with OSCL defined types.
+
+*****************************************************************************
+*/
+#ifndef sp_dec_h
+#define sp_dec_h "$Id $"
+
+/*
+*****************************************************************************
+* INCLUDE FILES
+*****************************************************************************
+*/
+#include "typedef.h"
+#include "cnst.h"
+#include "dec_amr.h"
+#include "pstfilt.h"
+#include "post_pro.h"
+#include "mode.h"
+
+/*
+*****************************************************************************
+* DEFINITION OF DATA TYPES
+*****************************************************************************
+*/
+typedef struct
+{
+ Decoder_amrState decoder_amrState;
+ Post_FilterState post_state;
+ Post_ProcessState postHP_state;
+ enum Mode prev_mode;
+} Speech_Decode_FrameState;
+
+/*
+*****************************************************************************
+* DECLARATION OF PROTOTYPES
+*****************************************************************************
+*/
+
+#if defined(__cplusplus)
+extern "C"
+{
+#endif
+ Word16 GSMInitDecode(void **state_data,
+ Word8 *id);
+ /* initialize one instance of the speech decoder
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to Speech_Decode_Frame in each call.
+ returns 0 on success
+ */
+
+ Word16 Speech_Decode_Frame_reset(void *state_data);
+ /* reset speech decoder (i.e. set state memory to zero)
+ returns 0 on success
+ */
+
+ void GSMDecodeFrameExit(void **state_data);
+ /* de-initialize speech decoder (i.e. free status struct)
+ stores NULL in *s
+ */
+
+ void GSMFrameDecode(
+ Speech_Decode_FrameState *st, /* io: post filter states */
+ enum Mode mode, /* i : AMR mode */
+ Word16 *serial, /* i : serial bit stream */
+ enum RXFrameType frame_type, /* i : Frame type */
+ Word16 *synth /* o : synthesis speech (postfiltered */
+ /* output) */
+ );
+ /* return 0 on success
+ */
+#if defined(__cplusplus)
+}
+#endif
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: wmf_to_ets.cpp
+ Functions: wmf_to_ets
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "frame_type_3gpp.h"
+#include "wmf_to_ets.h"
+#include "typedef.h"
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: wmf_to_ets
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ frame_type_3gpp = decoder speech bit rate (enum Frame_Type_3GPP)
+ wmf_input_ptr = pointer to input encoded speech bits in WMF (non-IF2) format
+ (Word8)
+ ets_output_ptr = pointer to output encoded speech bits in ETS format (Word16)
+
+ Outputs:
+ ets_output_ptr = pointer to encoded speech bits in the ETS format (Word16)
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs a transformation on the data buffers. It converts the
+ data format from WMF (non-IF2) (Wireless Multi-media Forum) to ETS (European
+ Telecommunication Standard). WMF format has the encoded speech bits byte
+ aligned with MSB to LSB going left to right. ETS format has the encoded speech
+ bits each separate with only one bit stored in each word.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+AMR Speech Codec Frame Structure", 3GPP TS 26.101 version 4.1.0 Release 4, June 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void wmf_to_ets(
+ enum Frame_Type_3GPP frame_type_3gpp,
+ UWord8 *wmf_input_ptr,
+ Word16 *ets_output_ptr,
+ CommonAmrTbls* common_amr_tbls)
+{
+
+ Word16 i;
+ const Word16* const* reorderBits_ptr = common_amr_tbls->reorderBits_ptr;
+ const Word16* numOfBits_ptr = common_amr_tbls->numOfBits_ptr;
+
+ /*
+ * The following section of code accesses bits in the WMF method of
+ * bit ordering. Each bit is given its own location in the buffer pointed
+ * to by ets_output_ptr. If the frame_type_3gpp is less than MRDTX then
+ * the elements are reordered within the buffer pointed to by ets_output_ptr.
+ */
+
+ if (frame_type_3gpp < AMR_SID)
+ {
+ /* The table numOfBits[] can be found in bitreorder.c. */
+ for (i = numOfBits_ptr[frame_type_3gpp] - 1; i >= 0; i--)
+ {
+ /* The table reorderBits[][] can be found in bitreorder.c. */
+ ets_output_ptr[reorderBits_ptr[frame_type_3gpp][i]] =
+ (wmf_input_ptr[i>>3] >> ((~i) & 0x7)) & 0x01;
+ }
+ }
+ else
+ {
+ /* The table numOfBits[] can be found in bitreorder.c. */
+ for (i = numOfBits_ptr[frame_type_3gpp] - 1; i >= 0; i--)
+ {
+ ets_output_ptr[i] = (wmf_input_ptr[i>>3] >> ((~i) & 0x7)) & 0x01;
+ }
+ }
+
+ return;
+}
--- /dev/null
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ src/amrencode.cpp \
+ src/autocorr.cpp \
+ src/c1035pf.cpp \
+ src/c2_11pf.cpp \
+ src/c2_9pf.cpp \
+ src/c3_14pf.cpp \
+ src/c4_17pf.cpp \
+ src/c8_31pf.cpp \
+ src/calc_cor.cpp \
+ src/calc_en.cpp \
+ src/cbsearch.cpp \
+ src/cl_ltp.cpp \
+ src/cod_amr.cpp \
+ src/convolve.cpp \
+ src/cor_h.cpp \
+ src/cor_h_x.cpp \
+ src/cor_h_x2.cpp \
+ src/corrwght_tab.cpp \
+ src/div_32.cpp \
+ src/dtx_enc.cpp \
+ src/enc_lag3.cpp \
+ src/enc_lag6.cpp \
+ src/enc_output_format_tab.cpp \
+ src/ets_to_if2.cpp \
+ src/ets_to_wmf.cpp \
+ src/g_adapt.cpp \
+ src/g_code.cpp \
+ src/g_pitch.cpp \
+ src/gain_q.cpp \
+ src/gsmamr_encoder_wrapper.cpp \
+ src/hp_max.cpp \
+ src/inter_36.cpp \
+ src/inter_36_tab.cpp \
+ src/l_abs.cpp \
+ src/l_comp.cpp \
+ src/l_extract.cpp \
+ src/l_negate.cpp \
+ src/lag_wind.cpp \
+ src/lag_wind_tab.cpp \
+ src/levinson.cpp \
+ src/lpc.cpp \
+ src/ol_ltp.cpp \
+ src/p_ol_wgh.cpp \
+ src/pitch_fr.cpp \
+ src/pitch_ol.cpp \
+ src/pre_big.cpp \
+ src/pre_proc.cpp \
+ src/prm2bits.cpp \
+ src/q_gain_c.cpp \
+ src/q_gain_p.cpp \
+ src/qgain475.cpp \
+ src/qgain795.cpp \
+ src/qua_gain.cpp \
+ src/s10_8pf.cpp \
+ src/set_sign.cpp \
+ src/sid_sync.cpp \
+ src/sp_enc.cpp \
+ src/spreproc.cpp \
+ src/spstproc.cpp \
+ src/ton_stab.cpp \
+ src/vad1.cpp
+
+
+LOCAL_MODULE := libpvencoder_gsmamr
+
+LOCAL_CFLAGS := $(PV_CFLAGS)
+
+LOCAL_ARM_MODE := arm
+
+LOCAL_STATIC_LIBRARIES :=
+
+LOCAL_SHARED_LIBRARIES :=
+
+LOCAL_C_INCLUDES := \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/amr_nb/enc/src \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/amr_nb/enc/include \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/amr_nb/common/include \
+ $(PV_INCLUDES)
+
+LOCAL_COPY_HEADERS_TO := $(PV_COPY_HEADERS_TO)
+
+LOCAL_COPY_HEADERS := \
+ include/gsmamr_encoder_wrapper.h
+
+include $(BUILD_STATIC_LIBRARY)
--- /dev/null
+# Get the current local path as the first operation
+LOCAL_PATH := $(call get_makefile_dir)
+
+# Clear out the variables used in the local makefiles
+include $(MK)/clear.mk
+
+
+
+TARGET := pvencoder_gsmamr
+
+
+OPTIMIZE_FOR_PERFORMANCE_OVER_SIZE := true
+
+XINCDIRS += ../../../common/include
+
+SRCDIR := ../../src
+INCSRCDIR := ../../include
+
+SRCS := amrencode.cpp \
+ autocorr.cpp \
+ c1035pf.cpp \
+ c2_11pf.cpp \
+ c2_9pf.cpp \
+ c3_14pf.cpp \
+ c4_17pf.cpp \
+ c8_31pf.cpp \
+ calc_cor.cpp \
+ calc_en.cpp \
+ cbsearch.cpp \
+ cl_ltp.cpp \
+ cod_amr.cpp \
+ convolve.cpp \
+ cor_h.cpp \
+ cor_h_x.cpp \
+ cor_h_x2.cpp \
+ corrwght_tab.cpp \
+ div_32.cpp \
+ dtx_enc.cpp \
+ enc_lag3.cpp \
+ enc_lag6.cpp \
+ enc_output_format_tab.cpp \
+ ets_to_if2.cpp \
+ ets_to_wmf.cpp \
+ g_adapt.cpp \
+ g_code.cpp \
+ g_pitch.cpp \
+ gain_q.cpp \
+ gsmamr_encoder_wrapper.cpp \
+ hp_max.cpp \
+ inter_36.cpp \
+ inter_36_tab.cpp \
+ l_abs.cpp \
+ l_comp.cpp \
+ l_extract.cpp \
+ l_negate.cpp \
+ lag_wind.cpp \
+ lag_wind_tab.cpp \
+ levinson.cpp \
+ lpc.cpp \
+ ol_ltp.cpp \
+ p_ol_wgh.cpp \
+ pitch_fr.cpp \
+ pitch_ol.cpp \
+ pre_big.cpp \
+ pre_proc.cpp \
+ prm2bits.cpp \
+ q_gain_c.cpp \
+ q_gain_p.cpp \
+ qgain475.cpp \
+ qgain795.cpp \
+ qua_gain.cpp \
+ s10_8pf.cpp \
+ set_sign.cpp \
+ sid_sync.cpp \
+ sp_enc.cpp \
+ spreproc.cpp \
+ spstproc.cpp \
+ ton_stab.cpp \
+ vad1.cpp
+
+HDRS := gsmamr_encoder_wrapper.h
+
+include $(MK)/library.mk
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+#ifndef __GSMAMR_ENCODER_WRAPPER_H__
+#define __GSMAMR_ENCODER_WRAPPER_H__
+
+//----------------------------------------------------------------------------
+// INCLUDES
+//----------------------------------------------------------------------------
+#include "oscl_base.h"
+
+class TInputAudioStream
+{
+ public:
+ // Pointer to buffer containing the audio samples.
+ // The application is required to allocate this buffer.
+ uint8* iSampleBuffer;
+
+ // Number of samples in bytes contained in iSampleBuffer
+ int32 iSampleLength;
+
+ // Mode of operation (the same as bit rate)
+ // For example, "GSM_AMR_4_75" (for 4.75 kbps) for GSM-AMR
+ int32 iMode;
+
+ // Start time when samples were taken
+ uint64 iStartTime;
+
+ // End time when samples were taken
+ uint64 iStopTime;
+};
+
+
+class TOutputAudioStream
+{
+ public:
+ // Pointer to buffer containing encoded audio samples
+ uint8* iBitStreamBuffer;
+
+ // Number of sample frames encoded and are contained in the buffer
+ int32 iNumSampleFrames;
+
+ // Size in bytes of each encoded sample frame;
+ // This variable may point to an array if the sample frame sizes are
+ // variable. For example:
+ // iSampleFrameSize[0] = 23 (frame size of frame #1)
+ // iSampleFrameSize[1] = 12 (frame size of frame #2)
+ // . . .
+ // iSampleFrameSize[iNumSampleFrames] = 10 (frame size of last frame)
+ int32* iSampleFrameSize;
+
+ // Start time of the encoded samples contained in the bit stream buffer
+ uint32 iStartTime;
+
+ // Stop time of encoded samples contained in the bit stream buffer
+ uint32 iStopTime;
+};
+
+class TEncodeProperties
+{
+ public:
+ // /////////////////////////////////////////////
+ // Input stream properties (uncompressed audio)
+ // /////////////////////////////////////////////
+
+ enum EInterleaveMode
+ {
+ EINTERLEAVE_LR, // interleaved left-right
+ EGROUPED_LR, // non-interleaved left-right
+ ENUM_INTERLEAVE_MODES // number of modes supported
+ };
+
+ // DESCRIPTION: Number of bits per sample. For example, set it to "16"
+ // bits for PCM.
+ // USAGE: The authoring application is required to fill this in.
+ // The CAEI uses the value for encoding.
+ int32 iInBitsPerSample;
+
+ // DESCRIPTION: Sampling rate of the input samples in Hz.
+ // For example, set it to "22050" Hz.
+ // USAGE: The authoring application is required to fill this in.
+ // If sampling rate is not known until CAEI is initialized,
+ // use '0'. The CAEI uses the value for encoding.
+ uint32 iInSamplingRate;
+
+ // DESCRIPTION: Clock rate or time scale to be used for the input timestamps
+ // (ticks per secs). For example, "22050" ticks/sec.
+ // USAGE: The authoring application is required to fill this in.
+ // If sampling rate is not known until CAEI is initialized,
+ // use '0'. The CAEI uses the value for encoding.
+ uint32 iInClockRate;
+
+ // DESCRIPTION: Number of input channels:1=Mono,2=Stereo.(Mono uses 1 channel;
+ // Stereo uses 2 channels).
+ // USAGE: The authoring application is required to fill this in.
+ // The CAEI uses the value for encoding.
+ uint8 iInNumChannels;
+
+ // DESCRIPTION: Whether to interleave or not the multi-channel input samples:
+ // EINTERLEAVE_LR = LRLRLRLRLR (interleaved left-right)
+ // EGROUPED_LR = LLLLLL...RRRRRR (non-interleaved left-right)
+ // USAGE: The authoring application is required to fill this in.
+ // The CAEI uses the value for encoding.
+ EInterleaveMode iInInterleaveMode;
+
+ // DESCRIPTION: Desired Sampling rate for a given bitrate combination:
+ // For example, set it to "16000" Hz if the encoding 16kbps
+ // mono/stereo or 24 kbps stereo
+ // USAGE: The authoring application is required to fill this in.
+ // The CAEI uses the value for encoding.
+ uint32 iDesiredSamplingRate;
+
+ public:
+ // ////////////////////////////////////////////
+ // Output stream properties (compressed audio)
+ // ////////////////////////////////////////////
+
+ // DESCRIPTION: Mode of operation (the same as bit rate). For example,
+ // "GSM_AMR_4_75" (for 4.75 kbps).
+ // USAGE: The authoring application is required to fill this in.
+ // The CAEI uses the value to configure the codec library.
+ int32 iMode;
+
+ // DESCRIPTION: Bit order format:
+ // TRUE = MSB..................LSB
+ // d7 d6 d5 d4 d3 d2 d1 d0
+ // FALSE = MSB..................LSB
+ // d0 d1 d2 d3 d4 d5 d6 d7
+ // USAGE: The authoring application is required to fill this in.
+ // The CAEI will use the value to setup the codec library.
+ int32 iBitStreamFormat;
+
+ // DESCRIPTION: Audio object type for the output bitstream; only applies
+ // to AAC codec
+ // USAGE: The application is required to fill this in.
+ // The CADI will use the value to setup the codec library.
+ int32 iAudioObjectType;
+
+ // DESCRIPTION: Final sampling frequency used when encoding in Hz.
+ // For example, "44100" Hz.
+ // USAGE: If the input sampling rate is not appropriate (e.g.,
+ // the codec requires a different sampling frequency),
+ // the CAEI will fill this in with the final sampling
+ // rate. The CAEI will perform resampling if the
+ // input sampling frequency is not the same as the output
+ // sampling frequency.
+ uint32 iOutSamplingRate;
+
+ // DESCRIPTION: Number of output channels:1=Mono,2=Stereo. (Mono uses 1
+ // channel; Stereo uses 2 channels).
+ // USAGE: The CAEI will fill this in if it needs to convert
+ // the input samples to what is required by the codec.
+ uint8 iOutNumChannels;
+
+ // DESCRIPTION: Clock rate or time scale used for the timestamps (ticks per secs)
+ // For example, "8000" ticks/sec.
+ // USAGE: The CAEI will fill this in if the input data will be
+ // resampled.
+ uint32 iOutClockRate;
+};
+
+
+
+/**
+** This class encodes audio samples using the GSM-AMR algorithm.
+** This codec operates on a 20-msec frame duration corresponding to 160
+** samples at the sampling frequency of 8000 samples/sec. The size of a frame
+** is 320 bytes. For each 20-ms frame, a bit-rate of 4.75, 5.15, 5.90, 6.70,
+** 7.40, 7.95, 10.2, or 12.2 kbits/sec can be produced.
+**
+** Sample usage:
+** ------------
+** // create a GSM-AMR encoder object
+** CGsmAmrEncoder* myAppEncoder = OSCL_NEW(CGsmAmrEncoder, ());
+** // set input parameters
+** TEncodeProperties myProps;
+** myProps.iInSamplingRate = 8000;
+** myProps.iInBitsPerSample = 16;
+** myProps.iOutBitRate = CGsmAmrEncoder::GSM_AMR_12_2;
+** myAppEncoder->InitializeEncoder(myProps, 2000);
+**
+** // encode a sample block
+** myAppEncoder->Encode(myInput, myOutput);
+**
+// // done encoding so cleanup
+** myAppEncoder->CleanupEncoder();
+** OSCL_DELETE(myAppEncoder);
+**
+*/
+
+class CPvGsmAmrEncoder
+{
+ public:
+ //! Constructor -- creates a GSM-AMR encoder object
+ OSCL_IMPORT_REF CPvGsmAmrEncoder();
+
+ //! Destructor -- destroys the GSM-AMR encoder object
+ OSCL_IMPORT_REF ~CPvGsmAmrEncoder();
+
+ /**
+ * This function initializes the GSM-AMR encoder.
+ * @param "aMaxOutputBufferSize" "the maximum buffer size for the output buffer when Encode() gets called"
+ * @param "aProps" "TEncodeProperties based pointer for the input encoding setting. if aProps=NULL, then
+ * default settings will be set"
+ * @return 0 for the correct operation, and -1 for the wrong operation
+ */
+ OSCL_IMPORT_REF int32 InitializeEncoder(int32 aMaxOutputBufferSize,
+ TEncodeProperties* aProps = NULL);
+
+ /**
+ * This function initializes the GSM-AMR encoder.
+ * @param "aInStream" "TInputAudioStream based reference object that contains the input buffer and buffer size and timestamp info"
+ * @param "aOutStream" "TOutputAudioStream based reference object that contains the output buffer for compressed data
+ * @return 0 for the correct operation, and -1 for the wrong operation
+ */
+ OSCL_IMPORT_REF int32 Encode(TInputAudioStream& aInStream,
+ TOutputAudioStream& aOutStream);
+
+ /**
+ * This function cleans up the encoder workspace when done encoding.
+ */
+ OSCL_IMPORT_REF int32 CleanupEncoder();
+
+ /**
+ * This function reset the encoder workspace.
+ */
+ OSCL_IMPORT_REF int32 Reset();
+
+
+ public:
+ // GSM AMR modes
+ // ** values should be the same as the Mode enum specified by AMR library
+ enum GSM_AMR_MODES
+ {
+ GSM_AMR_4_75,
+ GSM_AMR_5_15,
+ GSM_AMR_5_90,
+ GSM_AMR_6_70,
+ GSM_AMR_7_40,
+ GSM_AMR_7_95,
+ GSM_AMR_10_2,
+ GSM_AMR_12_2,
+ GSM_AMR_DTX,
+ GSM_AMR_N_MODES /* number of (SPC) modes */
+ };
+
+ private:
+
+ /**
+ * This inline function checks whether the specified mode is valid or not.
+ * @param "aMode" "input the current mode to be used in encoding"
+ * @return true for the valid mode, and false for the wrong mode
+ */
+ inline bool IsModeValid(int32 aMode)
+ {
+ return((aMode < GSM_AMR_N_MODES) && (aMode >= 0));
+ }
+
+ private:
+
+ // GSM AMR encoder state variables
+ void* iEncState;
+ void* iSidState;
+
+ // contains the current mode of GSM AMR
+ GSM_AMR_MODES iGsmAmrMode;
+
+ // last mode used
+ int32 iLastModeUsed;
+
+ // number of samples per frame (granulity)
+ int32 iNumSamplesPerFrame;
+ // number of bytes per sample
+ int32 iBytesPerSample;
+
+ // maximum size allowed for output buffer
+ int32 iMaxOutputBufferSize;
+
+ // bit stream format
+ int32 iBitStreamFormat;
+
+};
+
+typedef enum
+{
+ GSMAMR_ENC_NO_ERROR = 0,
+ GSMAMR_ENC_NO_MEMORY_ERROR = -1,
+ GSMAMR_ENC_CODEC_INIT_FAILURE = -2,
+ GSMAMR_ENC_CODEC_NOT_INITIALIZED = -3,
+ GSMAMR_ENC_INVALID_PARAM = -4,
+ GSMAMR_ENC_INVALID_MODE = -5,
+ GSMAMR_ENC_CODEC_ENCODE_FAILURE = -6,
+ GSMAMR_ENC_MEMORY_OVERFLOW = -7
+} GSMAMR_ENC_STATUS;
+
+#endif // __GSMAMR_ENCODER_WRAPPER_H__
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: amrencode.cpp
+ Functions: AMREncode
+ AMREncodeInit
+ AMREncodeReset
+ AMREncodeExit
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the functions required to initialize, reset, exit, and
+ invoke the ETS 3GPP GSM AMR encoder.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "cnst.h"
+#include "mode.h"
+#include "frame_type_3gpp.h"
+#include "typedef.h"
+
+#include "amrencode.h"
+#include "ets_to_if2.h"
+#include "ets_to_wmf.h"
+#include "sid_sync.h"
+#include "sp_enc.h"
+
+/*----------------------------------------------------------------------------
+; MACROS [optional]
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES [optional]
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: AMREncodeInit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pEncStructure = pointer containing the pointer to a structure used by
+ the encoder (void)
+ pSidSyncStructure = pointer containing the pointer to a structure used for
+ SID synchronization (void)
+ dtx_enable = flag to turn off or turn on DTX (Flag)
+
+ Outputs:
+ None
+
+ Returns:
+ init_status = 0, if initialization was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ speech_encoder_state = pointer to encoder frame structure
+ (Speech_Encode_FrameState)
+ sid_state = pointer to SID sync structure (sid_syncState)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function initializes the GSM AMR Encoder library by calling
+ GSMInitEncode and sid_sync_init. If initialization was successful,
+ init_status is set to zero, otherwise, it is set to -1.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ // Initialize GSM AMR Encoder
+ CALL GSMInitEncode(state_data = &pEncStructure,
+ dtx = dtx_enable,
+ id = char_id )
+ MODIFYING(nothing)
+ RETURNING(return_value = enc_init_status)
+
+ // Initialize SID synchronization
+ CALL sid_sync_init(state = &pSidSyncStructure)
+ MODIFYING(nothing)
+ RETURNING(return_value = sid_sync_init_status)
+
+ IF ((enc_init_status != 0) || (sid_sync_init != 0))
+ THEN
+ init_status = -1
+
+ ENDIF
+
+ MODIFY(nothing)
+ RETURN(init_status)
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 AMREncodeInit(
+ void **pEncStructure,
+ void **pSidSyncStructure,
+ Flag dtx_enable)
+{
+ Word16 enc_init_status = 0;
+ Word16 sid_sync_init_status = 0;
+ Word16 init_status = 0;
+
+ /* Initialize GSM AMR Encoder */
+#ifdef CONSOLE_ENCODER_REF
+ /* Change to original ETS input types */
+ Speech_Encode_FrameState **speech_encode_frame =
+ (Speech_Encode_FrameState **)(pEncStructure);
+
+ sid_syncState **sid_sync_state = (sid_syncState **)(pSidSyncStructure);
+
+ /* Use ETS version of sp_enc.c */
+ enc_init_status = Speech_Encode_Frame_init(speech_encode_frame,
+ dtx_enable,
+ (Word8*)"encoder");
+
+ /* Initialize SID synchronization */
+ sid_sync_init_status = sid_sync_init(sid_sync_state);
+
+#else
+ /* Use PV version of sp_enc.c */
+ enc_init_status = GSMInitEncode(pEncStructure,
+ dtx_enable,
+ (Word8*)"encoder");
+
+ /* Initialize SID synchronization */
+ sid_sync_init_status = sid_sync_init(pSidSyncStructure);
+
+
+#endif
+
+ if ((enc_init_status != 0) || (sid_sync_init_status != 0))
+ {
+ init_status = -1;
+ }
+
+ return(init_status);
+}
+
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: AMREncodeReset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pEncStructure = pointer to a structure used by the encoder (void)
+ pSidSyncStructure = pointer to a structure used for SID synchronization
+ (void)
+
+ Outputs:
+ None
+
+ Returns:
+ reset_status = 0, if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ speech_encoder_state = pointer to encoder frame structure
+ (Speech_Encode_FrameState)
+ sid_state = pointer to SID sync structure (sid_syncState)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function resets the state memory used by the Encoder and SID sync
+ function. If reset was successful, reset_status is set to zero, otherwise,
+ it is set to -1.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ // Reset GSM AMR Encoder
+ CALL Speech_Encode_Frame_reset(state_data = pEncStructure)
+ MODIFYING(nothing)
+ RETURNING(return_value = enc_reset_status)
+
+ // Reset SID synchronization
+ CALL sid_sync_reset(state = pSidSyncStructure)
+ MODIFYING(nothing)
+ RETURNING(return_value = sid_sync_reset_status)
+
+ IF ((enc_reset_status != 0) || (sid_sync_reset_status != 0))
+ THEN
+ reset_status = -1
+
+ ENDIF
+
+ MODIFY(nothing)
+ RETURN(reset_status)
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 AMREncodeReset(
+ void *pEncStructure,
+ void *pSidSyncStructure)
+{
+ Word16 enc_reset_status = 0;
+ Word16 sid_sync_reset_status = 0;
+ Word16 reset_status = 0;
+
+ /* Reset GSM AMR Encoder */
+ enc_reset_status = Speech_Encode_Frame_reset(pEncStructure);
+
+
+ /* Reset SID synchronization */
+ sid_sync_reset_status = sid_sync_reset(pSidSyncStructure);
+
+ if ((enc_reset_status != 0) || (sid_sync_reset_status != 0))
+ {
+ reset_status = -1;
+ }
+
+ return(reset_status);
+}
+
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: AMREncodeExit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pEncStructure = pointer containing the pointer to a structure used by
+ the encoder (void)
+ pSidSyncStructure = pointer containing the pointer to a structure used for
+ SID synchronization (void)
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ speech_encoder_state = pointer to encoder frame structure
+ (Speech_Encode_FrameState)
+ sid_state = pointer to SID sync structure (sid_syncState)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function frees up the state memory used by the Encoder and SID
+ synchronization function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ // Exit GSM AMR Encoder
+ CALL GSMEncodeFrameExit(state_data = &pEncStructure)
+ MODIFYING(nothing)
+ RETURNING(nothing)
+
+ // Exit SID synchronization
+ CALL sid_sync_exit(state = &pSidSyncStructure)
+ MODIFYING(nothing)
+ RETURNING(nothing)
+
+ MODIFY(nothing)
+ RETURN(nothing)
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void AMREncodeExit(
+ void **pEncStructure,
+ void **pSidSyncStructure)
+{
+ /* Exit GSM AMR Encoder */
+
+#ifdef CONSOLE_ENCODER_REF
+ /* Change to original ETS input types */
+ Speech_Encode_FrameState ** speech_encode_frame =
+ (Speech_Encode_FrameState **)(pEncStructure);
+
+ sid_syncState ** sid_sync_state = (sid_syncState **)(pSidSyncStructure);
+
+ /* Use ETS version of sp_enc.c */
+ Speech_Encode_Frame_exit(speech_encode_frame);
+
+
+ /* Exit SID synchronization */
+ sid_sync_exit(sid_sync_state);
+
+#else
+
+ /* Use PV version of sp_enc.c */
+ GSMEncodeFrameExit(pEncStructure);
+
+ /* Exit SID synchronization */
+ sid_sync_exit(pSidSyncStructure);
+
+#endif
+
+ return;
+}
+
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: AMREncode
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pEncState = pointer to encoder state structure (void)
+ pSidSyncState = pointer to SID sync state structure (void)
+ mode = codec mode (enum Mode)
+ pEncInput = pointer to the input speech samples (Word16)
+ pEncOutput = pointer to the encoded bit stream (unsigned char)
+ p3gpp_frame_type = pointer to the 3GPP frame type (enum Frame_Type_3GPP)
+ output_format = output format type (Word16); valid values are AMR_WMF,
+ AMR_IF2, and AMR_ETS
+
+ Outputs:
+ pEncOutput buffer contains to the newly encoded bit stream
+ p3gpp_frame_type store contains the new 3GPP frame type
+
+ Returns:
+ num_enc_bytes = number of encoded bytes for a particular
+ mode or -1, if an error occurred (int)
+
+ Global Variables Used:
+ WmfEncBytesPerFrame = table containing the number of encoder frame
+ data bytes per codec mode for WMF output
+ format (const int)
+ If2EncBytesPerFrame = table containing the number of encoder frame
+ data bytes per codec mode for IF2 output
+ format (const int)
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function is the top-level entry point to the GSM AMR Encoder library.
+
+ The following describes the encoding process for WMF or IF2 formatted output
+ data. This functions calls GSMEncodeFrame to encode one frame's worth of
+ input speech samples, and returns the newly encoded bit stream in the buffer
+ pointed to by pEncOutput.Then the function sid_sync is called to determine
+ the transmit frame type. If the transmit frame type is TX_SPEECH_GOOD or
+ TX_SID_FIRST or TX_SID_UPDATE, p3gpp_frame_type will be set to the encoder
+ used mode. For SID frames, the SID type information and mode information are
+ added to the encoded parameter bitstream according to the SID frame format
+ described in [1]. If the transmit frame type is TX_NO_DATA, the store
+ pointed to by p3gpp_frame_type will be set to NO_DATA. Then the output
+ format type (output_format) will be checked to determine the format of the
+ encoded data.
+
+ If output_format is AMR_TX_WMF, the function ets_to_wmf will be called to
+ convert from ETS format (1 bit/word, where 1 word = 16 bits, information in
+ least significant bit) to WMF (aka, non-IF2). The WMF format stores the data
+ in octets. The least significant 4 bits of the first octet contains the 3GPP
+ frame type information and the most significant 4 bits are zeroed out. The
+ succeeding octets contain the packed encoded speech bits. The total number of
+ WMF bytes encoded is obtained from WmfEncBytesPerFrame table and returned via
+ num_enc_bytes.
+
+ If output_format is AMR_TX_IF2, the function if2_to_ets will be called to
+ convert from ETS format to IF2 [1]. The IF2 format stores the data in octets.
+ The least significant nibble of the first octet contains the 3GPP frame type
+ and the most significant nibble contains the first 4 encoded speech bits. The
+ suceeding octets contain the packed encoded speech bits. The total number of
+ IF2 bytes encoded is obtained from If2EncBytesPerFrame table and returned via
+ num_enc_bytes.
+
+ If output_format is AMR_TX_ETS, GSMFrameEncode is called to generate the
+ encoded speech parameters, then, sid_sync is called to determine the transmit
+ frame type. If the transmit frame type is not TX_NO_DATA, then the transmit
+ frame type information is saved in the first location of the ets_output_bfr,
+ followed by the encoded speech parameters. The codec mode information is
+ stored immediately after the MAX_SERIAL_SIZE encoded speech parameters. If
+ the transmit frame type is TX_NO_DATA, the transmit frame type, encoded
+ speech parameters, and codec mode are stored in the same order as before
+ in ets_output_bfr. However, for the no data case, the codec mode is set to
+ -1.
+
+ After all the required information is generated, the 16-bit data generated
+ by the Encoder (in ets_output_bfr) is copied to the buffer pointed to by
+ pEncOutput in the little endian configuration, i.e., least significant byte,
+ followed by most significant byte. The num_enc_bytes is set to
+ 2*(MAX_SERIAL_SIZE+2).
+
+ If output_format is invalid, this function flags the error and sets
+ num_enc_bytes to -1.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] "AMR Speech Codec Frame Structure", 3GPP TS 26.101 version 4.1.0
+ Release 4, June 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ IF ((output_format == AMR_TX_WMF) | (output_format == AMR_TX_IF2))
+ THEN
+ // Encode one speech frame (20 ms)
+ CALL GSMEncodeFrame( state_data = pEncState,
+ mode = mode,
+ new_speech = pEncInput,
+ serial = &ets_output_bfr[0],
+ usedMode = &usedMode )
+ MODIFYING(nothing)
+ RETURNING(return_value = 0)
+
+ // Determine transmit frame type
+ CALL sid_sync(st = pSidSyncState,
+ mode = usedMode
+ tx_frame_type = &tx_frame_type)
+ MODIFYING(nothing)
+ RETURNING(nothing)
+
+ IF (tx_frame_type != TX_NO_DATA)
+ THEN
+ // There is data to transmit
+ *p3gpp_frame_type = (enum Frame_Type_3GPP) usedMode
+
+ // Add SID type and mode info for SID frames
+ IF (*p3gpp_frame_type == AMR_SID)
+ THEN
+ // Add SID type to encoder output buffer
+ IF (tx_frame_type == TX_SID_FIRST)
+ THEN
+ ets_output_bfr[AMRSID_TXTYPE_BIT_OFFSET] &= 0x7f
+
+ ELSEIF (tx_frame_type == TX_SID_UPDATE )
+ THEN
+ ets_output_bfr[AMRSID_TXTYPE_BIT_OFFSET] |= 0x80
+
+ ENDIF
+
+ // Add mode information bits
+ FOR i = 0 TO NUM_AMRSID_TXMODE_BITS-1
+
+ ets_output_bfr[AMRSID_TXMODE_BIT_OFFSET+i] = (mode>>i)&&0x0001
+
+ ENDFOR
+
+ ENDIF
+
+ ELSE
+ // There is no data to transmit
+ *p3gpp_frame_type = NO_DATA
+
+ ENDIF
+
+ // Determine the output format to use
+ IF (output_format == AMR_TX_WMF)
+ THEN
+ // Change output data format to WMF
+ CALL ets_to_wmf( frame_type_3gpp = *p3gpp_frame_type,
+ ets_input_ptr = &ets_output_bfr[0],
+ wmf_output_ptr = pEncOutput )
+ MODIFYING(nothing)
+ RETURNING(nothing)
+
+ // Set up the number of encoded WMF bytes
+ num_enc_bytes = WmfEncBytesPerFrame[(int) *p3gpp_frame_type]
+
+ ELSEIF (output_format == AMR_TX_IF2)
+ THEN
+ // Change output data format to IF2
+ CALL ets_to_if2( frame_type_3gpp = *p3gpp_frame_type,
+ ets_input_ptr = &ets_output_bfr[0],
+ if2_output_ptr = pEncOutput )
+ MODIFYING(nothing)
+ RETURNING(nothing)
+
+ // Set up the number of encoded IF2 bytes
+ num_enc_bytes = If2EncBytesPerFrame[(int) *p3gpp_frame_type]
+
+ ENDIF
+
+ ELSEIF (output_format = AMR_TX_ETS)
+ THEN
+ // Encode one speech frame (20 ms)
+ CALL GSMEncodeFrame( state_data = pEncState,
+ mode = mode,
+ new_speech = pEncInput,
+ serial = &ets_output_bfr[1],
+ usedMode = &usedMode )
+ MODIFYING(nothing)
+ RETURNING(return_value = 0)
+
+ // Save used mode
+ *p3gpp_frame_type = (enum Frame_Type_3GPP) usedMode
+
+ // Determine transmit frame type
+ CALL sid_sync(st = pSidSyncState,
+ mode = usedMode
+ tx_frame_type = &tx_frame_type)
+ MODIFYING(nothing)
+ RETURNING(nothing)
+
+ // Put TX frame type in output buffer
+ ets_output_bfr[0] = tx_frame_type
+
+ // Put mode information after the encoded speech parameters
+ IF (tx_frame_type != TX_NO_DATA)
+ THEN
+ ets_output_bfr[MAX_SERIAL_SIZE+1] = mode
+
+ ELSE
+ ets_output_bfr[MAX_SERIAL_SIZE+1] = -1
+
+ ENDIF
+
+ // Copy output of encoder to pEncOutput buffer
+ ets_output_ptr = (unsigned char *) &ets_output_bfr[0]
+
+ // Copy 16-bit data in 8-bit chunks using Little Endian configuration
+ FOR i = 0 TO (2*(MAX_SERIAL_SIZE+6))-1
+
+ *(pEncOutput+i) = *ets_output_ptr
+ ets_output_ptr = ets_output_ptr + 1
+
+ ENDFOR
+
+ // Set up number of encoded bytes
+ num_enc_bytes = 2*(MAX_SERIAL_SIZE+6)
+
+ ELSE
+ // Invalid output_format, set up error code
+ num_enc_bytes = -1
+
+ ENDIF
+
+ MODIFY (nothing)
+ RETURN (num_enc_bytes)
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 AMREncode(
+ void *pEncState,
+ void *pSidSyncState,
+ enum Mode mode,
+ Word16 *pEncInput,
+ UWord8 *pEncOutput,
+ enum Frame_Type_3GPP *p3gpp_frame_type,
+ Word16 output_format
+)
+{
+ Word16 ets_output_bfr[MAX_SERIAL_SIZE+2];
+ UWord8 *ets_output_ptr;
+ Word16 num_enc_bytes = -1;
+ Word16 i;
+ enum TXFrameType tx_frame_type;
+ enum Mode usedMode = MR475;
+
+ /* Encode WMF or IF2 frames */
+ if ((output_format == AMR_TX_WMF) | (output_format == AMR_TX_IF2)
+ | (output_format == AMR_TX_IETF))
+ {
+ /* Encode one speech frame (20 ms) */
+
+#ifndef CONSOLE_ENCODER_REF
+
+ /* Use PV version of sp_enc.c */
+ GSMEncodeFrame(pEncState, mode, pEncInput, ets_output_bfr, &usedMode);
+
+#else
+ /* Use ETS version of sp_enc.c */
+ Speech_Encode_Frame(pEncState, mode, pEncInput, ets_output_bfr, &usedMode);
+
+#endif
+
+ /* Determine transmit frame type */
+ sid_sync(pSidSyncState, usedMode, &tx_frame_type);
+
+ if (tx_frame_type != TX_NO_DATA)
+ {
+ /* There is data to transmit */
+ *p3gpp_frame_type = (enum Frame_Type_3GPP) usedMode;
+
+ /* Add SID type and mode info for SID frames */
+ if (*p3gpp_frame_type == AMR_SID)
+ {
+ /* Add SID type to encoder output buffer */
+ if (tx_frame_type == TX_SID_FIRST)
+ {
+ ets_output_bfr[AMRSID_TXTYPE_BIT_OFFSET] &= 0x0000;
+ }
+ else if (tx_frame_type == TX_SID_UPDATE)
+ {
+ ets_output_bfr[AMRSID_TXTYPE_BIT_OFFSET] |= 0x0001;
+ }
+
+ /* Add mode information bits */
+ for (i = 0; i < NUM_AMRSID_TXMODE_BITS; i++)
+ {
+ ets_output_bfr[AMRSID_TXMODE_BIT_OFFSET+i] =
+ (mode >> i) & 0x0001;
+ }
+ }
+ }
+ else
+ {
+ /* This is no data to transmit */
+ *p3gpp_frame_type = (enum Frame_Type_3GPP)AMR_NO_DATA;
+ }
+
+ /* At this point, output format is ETS */
+ /* Determine the output format to use */
+ if (output_format == AMR_TX_IETF)
+ {
+ /* Change output data format to WMF */
+ ets_to_ietf(*p3gpp_frame_type, ets_output_bfr, pEncOutput, &(((Speech_Encode_FrameState*)pEncState)->cod_amr_state->common_amr_tbls));
+
+ /* Set up the number of encoded WMF bytes */
+ num_enc_bytes = WmfEncBytesPerFrame[(Word16) *p3gpp_frame_type];
+
+ }
+ else if (output_format == AMR_TX_WMF)
+ {
+ /* Change output data format to WMF */
+ ets_to_wmf(*p3gpp_frame_type, ets_output_bfr, pEncOutput, &(((Speech_Encode_FrameState*)pEncState)->cod_amr_state->common_amr_tbls));
+
+ /* Set up the number of encoded WMF bytes */
+ num_enc_bytes = WmfEncBytesPerFrame[(Word16) *p3gpp_frame_type];
+
+ }
+ else if (output_format == AMR_TX_IF2)
+ {
+ /* Change output data format to IF2 */
+ ets_to_if2(*p3gpp_frame_type, ets_output_bfr, pEncOutput, &(((Speech_Encode_FrameState*)pEncState)->cod_amr_state->common_amr_tbls));
+
+ /* Set up the number of encoded IF2 bytes */
+ num_enc_bytes = If2EncBytesPerFrame[(Word16) *p3gpp_frame_type];
+
+ }
+ }
+
+ /* Encode ETS frames */
+ else if (output_format == AMR_TX_ETS)
+ {
+ /* Encode one speech frame (20 ms) */
+
+#ifndef CONSOLE_ENCODER_REF
+
+ /* Use PV version of sp_enc.c */
+ GSMEncodeFrame(pEncState, mode, pEncInput, &ets_output_bfr[1], &usedMode);
+
+#else
+ /* Use ETS version of sp_enc.c */
+ Speech_Encode_Frame(pEncState, mode, pEncInput, &ets_output_bfr[1], &usedMode);
+
+#endif
+
+ /* Save used mode */
+ *p3gpp_frame_type = (enum Frame_Type_3GPP) usedMode;
+
+ /* Determine transmit frame type */
+ sid_sync(pSidSyncState, usedMode, &tx_frame_type);
+
+ /* Put TX frame type in output buffer */
+ ets_output_bfr[0] = tx_frame_type;
+
+ /* Put mode information after the encoded speech parameters */
+ if (tx_frame_type != TX_NO_DATA)
+ {
+ ets_output_bfr[1+MAX_SERIAL_SIZE] = (Word16) mode;
+ }
+ else
+ {
+ ets_output_bfr[1+MAX_SERIAL_SIZE] = -1;
+ }
+
+ /* Copy output of encoder to pEncOutput buffer */
+ ets_output_ptr = (UWord8 *) & ets_output_bfr[0];
+
+ /* Copy 16-bit data in 8-bit chunks */
+ /* using Little Endian configuration */
+ for (i = 0; i < 2*(MAX_SERIAL_SIZE + 2); i++)
+ {
+ *(pEncOutput + i) = *ets_output_ptr;
+ ets_output_ptr += 1;
+ }
+
+ /* Set up the number of encoded bytes */
+ num_enc_bytes = 2 * (MAX_SERIAL_SIZE + 2);
+
+ }
+
+ /* Invalid frame format */
+ else
+ {
+ /* Invalid output format, set up error code */
+ num_enc_bytes = -1;
+ }
+
+ return(num_enc_bytes);
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: amrencode.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains the function prototype of AMREncode.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _AMRENCODE_H_
+#define _AMRENCODE_H_
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "frame_type_3gpp.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+#define NUM_AMRSID_TXMODE_BITS 3
+#define AMRSID_TXMODE_BIT_OFFSET 36
+#define AMRSID_TXTYPE_BIT_OFFSET 35
+
+ /* Output format types */
+
+#define AMR_TX_WMF 0
+#define AMR_TX_IF2 1
+#define AMR_TX_ETS 2
+#define AMR_TX_IETF 3
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+ extern const Word16 WmfEncBytesPerFrame[];
+ extern const Word16 If2EncBytesPerFrame[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ Word16 AMREncodeInit(
+ void **pEncStructure,
+ void **pSidSyncStructure,
+ Flag dtx_enable);
+
+ Word16 AMREncodeReset(
+ void *pEncStructure,
+ void *pSidSyncStructure);
+
+ void AMREncodeExit(
+ void **pEncStructure,
+ void **pSidSyncStructure);
+
+ Word16 AMREncode(
+ void *pEncState,
+ void *pSidSyncState,
+ enum Mode mode,
+ Word16 *pEncInput,
+ UWord8 *pEncOutput,
+ enum Frame_Type_3GPP *p3gpp_frame_type,
+ Word16 output_format
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AMRENCODE_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: autocorr.cpp
+
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "autocorr.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "oper_32b.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Autocorr
+----------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ x = buffer of input signals of type Word16
+ m = LPC order of type Word16
+ wind = buffer of window signals of type Word16
+ r_h = buffer containing the high word of the autocorrelation values
+ of type Word16
+ r_l = buffer containing the low word of the autocorrelation values
+ of type Word16
+
+ pOverflow = pointer to variable of type Flag *, which indicates if
+ overflow occurs.
+
+ Outputs:
+ r_h buffer contains the high word of the new autocorrelation values
+ r_l buffer contains the low word of the new autocorrelation values
+ pOverflow -> 1 if overflow occurs.
+
+ Returns:
+ norm = normalized autocorrelation at lag zero of type Word16
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function windows the input signal with the provided window
+ then calculates the autocorrelation values for lags of 0,1,...m,
+ where m is the passed in LPC order.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ autocorr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 Autocorr (
+ Word16 x[], // (i) : Input signal (L_WINDOW)
+ Word16 m, // (i) : LPC order
+ Word16 r_h[], // (o) : Autocorrelations (msb)
+ Word16 r_l[], // (o) : Autocorrelations (lsb)
+ const Word16 wind[] // (i) : window for LPC analysis (L_WINDOW)
+)
+{
+ Word16 i, j, norm;
+ Word16 y[L_WINDOW];
+ Word32 sum;
+ Word16 overfl, overfl_shft;
+
+ // Windowing of signal
+
+ for (i = 0; i < L_WINDOW; i++)
+ {
+ y[i] = mult_r (x[i], wind[i]);
+ }
+
+ // Compute r[0] and test for overflow
+
+ overfl_shft = 0;
+
+ do
+ {
+ overfl = 0;
+ sum = 0L;
+
+ for (i = 0; i < L_WINDOW; i++)
+ {
+ sum = L_mac (sum, y[i], y[i]);
+ }
+
+ // If overflow divide y[] by 4
+
+ if (L_sub (sum, MAX_32) == 0L)
+ {
+ overfl_shft = add (overfl_shft, 4);
+ overfl = 1; // Set the overflow flag
+
+ for (i = 0; i < L_WINDOW; i++)
+ {
+ y[i] = shr (y[i], 2);
+ }
+ }
+ }
+ while (overfl != 0);
+
+ sum = L_add (sum, 1L); // Avoid the case of all zeros
+
+ // Normalization of r[0]
+
+ norm = norm_l (sum);
+ sum = L_shl (sum, norm);
+ L_Extract (sum, &r_h[0], &r_l[0]); // Put in DPF format (see oper_32b)
+
+ // r[1] to r[m]
+
+ for (i = 1; i <= m; i++)
+ {
+ sum = 0;
+
+ for (j = 0; j < L_WINDOW - i; j++)
+ {
+ sum = L_mac (sum, y[j], y[j + i]);
+ }
+
+ sum = L_shl (sum, norm);
+ L_Extract (sum, &r_h[i], &r_l[i]);
+ }
+
+ norm = sub (norm, overfl_shft);
+
+ return norm;
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Autocorr(
+ Word16 x[], /* (i) : Input signal (L_WINDOW) */
+ Word16 m, /* (i) : LPC order */
+ Word16 r_h[], /* (o) : Autocorrelations (msb) */
+ Word16 r_l[], /* (o) : Autocorrelations (lsb) */
+ const Word16 wind[], /* (i) : window for LPC analysis (L_WINDOW) */
+ Flag *pOverflow /* (o) : indicates overflow */
+)
+{
+ register Word16 i;
+ register Word16 j;
+ register Word16 norm;
+
+ Word16 y[L_WINDOW];
+ Word32 sum;
+ Word16 overfl_shft;
+
+
+ /* Added for optimization */
+
+
+ Word16 temp;
+ Word16 *p_x;
+ Word16 *p_y;
+ Word16 *p_y_1;
+ Word16 *p_y_ref;
+ Word16 *p_rh;
+ Word16 *p_rl;
+ const Word16 *p_wind;
+ p_y = y;
+ p_x = x;
+ p_wind = wind;
+ /*
+ * Windowing of the signal
+ */
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ sum = 0L;
+ j = 0;
+
+ for (i = L_WINDOW; i != 0; i--)
+ {
+ temp = (Word16)((amrnb_fxp_mac_16_by_16bb((Word32) * (p_x++), (Word32) * (p_wind++), 0x04000)) >> 15);
+ *(p_y++) = temp;
+
+ sum += ((Word32)temp * temp) << 1;
+ if (sum < 0)
+ {
+ /*
+ * if oveflow exist, then stop accumulation
+ */
+ j = 1;
+ break;
+ }
+
+ }
+ /*
+ * if oveflow existed, complete windowing operation
+ * without computing energy
+ */
+
+ if (j)
+ {
+ p_y = &y[L_WINDOW-i];
+ p_x = &x[L_WINDOW-i];
+ p_wind = &wind[L_WINDOW-i];
+
+ for (; i != 0; i--)
+ {
+ temp = (Word16)((amrnb_fxp_mac_16_by_16bb((Word32) * (p_x++), (Word32) * (p_wind++), 0x04000)) >> 15);
+ *(p_y++) = temp;
+ }
+ }
+
+
+ /*
+ * Compute r[0] and test for overflow
+ */
+
+ overfl_shft = 0;
+
+ /*
+ * scale down by 1/4 only when needed
+ */
+ while (j == 1)
+ {
+ /* If overflow divide y[] by 4 */
+ /* FYI: For better resolution, we could */
+ /* divide y[] by 2 */
+ overfl_shft += 4;
+ p_y = &y[0];
+ sum = 0L;
+
+ for (i = (L_WINDOW >> 1); i != 0 ; i--)
+ {
+ temp = *p_y >> 2;
+ *(p_y++) = temp;
+ sum += ((Word32)temp * temp) << 1;
+ temp = *p_y >> 2;
+ *(p_y++) = temp;
+ sum += ((Word32)temp * temp) << 1;
+ }
+ if (sum > 0)
+ {
+ j = 0;
+ }
+
+ }
+
+ sum += 1L; /* Avoid the case of all zeros */
+
+ /* Normalization of r[0] */
+
+ norm = norm_l(sum);
+
+ sum <<= norm;
+
+ /* Put in DPF format (see oper_32b) */
+ r_h[0] = (Word16)(sum >> 16);
+ r_l[0] = (Word16)((sum >> 1) - ((Word32)(r_h[0]) << 15));
+
+ /* r[1] to r[m] */
+
+ p_y_ref = &y[L_WINDOW - 1 ];
+ p_rh = &r_h[m];
+ p_rl = &r_l[m];
+
+ for (i = m; i > 0; i--)
+ {
+ sum = 0;
+
+ p_y = &y[L_WINDOW - i - 1];
+ p_y_1 = p_y_ref;
+
+ for (j = (L_WINDOW - i - 1) >> 1; j != 0; j--)
+ {
+ sum = amrnb_fxp_mac_16_by_16bb((Word32) * (p_y--), (Word32) * (p_y_1--), sum);
+ sum = amrnb_fxp_mac_16_by_16bb((Word32) * (p_y--), (Word32) * (p_y_1--), sum);
+ }
+
+ sum = amrnb_fxp_mac_16_by_16bb((Word32) * (p_y--), (Word32) * (p_y_1--), sum);
+
+ if (((L_WINDOW - i - 1) & 1))
+ {
+ sum = amrnb_fxp_mac_16_by_16bb((Word32) * (p_y--), (Word32) * (p_y_1--), sum);
+ }
+
+ sum <<= (norm + 1);
+
+ *(p_rh) = (Word16)(sum >> 16);
+ *(p_rl--) = (Word16)((sum >> 1) - ((Word32) * (p_rh--) << 15));
+
+ }
+
+ norm -= overfl_shft;
+
+ return (norm);
+
+} /* Autocorr */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: autocorr.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the autocorr function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef autocorr_h
+#define autocorr_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 Autocorr(
+ Word16 x[], /* (i) : Input signal (L_WINDOW) */
+ Word16 m, /* (i) : LPC order */
+ Word16 r_h[], /* (o) : Autocorrelations (msb) */
+ Word16 r_l[], /* (o) : Autocorrelations (lsb) */
+ const Word16 wind[], /* (i) : window for LPC analysis (L_WINDOW) */
+ Flag *pOverflow /* (o) : indicates overflow */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AUTO_CORR_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c1035pf.cpp
+ Functions: q_p
+ build_code
+ code_10i40_35bits
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the function that searches a 35 bit algebraic codebook
+ containing 10 pulses in a frame of 40 samples.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "c1035pf.h"
+#include "cnst.h"
+#include "basic_op.h"
+#include "inv_sqrt.h"
+#include "set_sign.h"
+#include "cor_h.h"
+#include "cor_h_x.h"
+#include "s10_8pf.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+#define NB_PULSE 10
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: q_p
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pShift_reg = pointer to Old CN generator shift register state (Word32)
+ no_bits = Number of bits (Word16)
+
+ Outputs:
+ pShift_reg -> Updated CN generator shift register state
+
+ Returns:
+ noise_bits = Generated random integer value (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This is a local function that determnes the index of the pulses by looking up
+ the gray encoder table
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ c1035pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void q_p (
+ Word16 *ind, // Pulse position
+ Word16 n // Pulse number
+)
+{
+ Word16 tmp;
+
+ tmp = *ind;
+
+ if (sub (n, 5) < 0)
+ {
+ *ind = (tmp & 0x8) | gray[tmp & 0x7];
+ }
+ else
+ {
+ *ind = gray[tmp & 0x7];
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void q_p(
+ Word16 *pInd, /* Pulse position */
+ Word16 n, /* Pulse number */
+ const Word16* gray_ptr
+)
+{
+ Word16 tmp;
+
+ tmp = *pInd;
+
+ if (n < 5)
+ {
+ *pInd = (tmp & 0x8) | gray_ptr[tmp & 0x7];
+ }
+ else
+ {
+ *pInd = gray_ptr[tmp & 0x7];
+ }
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: build_code
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pSeed = pointer to the Old CN generator shift register state (Word32)
+ n_param = Number of parameters to randomize (Word16)
+ param_size_table = table holding paameter sizes (Word16)
+ param[] = array to hold CN generated paramters (Word16)
+ pOverflow = pointer to overflow flag (Flag)
+
+ Outputs:
+ param[] = CN generated parameters (Word16)
+ pSeed = Updated CN generator shift register state (Word16)
+ pOverflow -> 1 if overflow occured
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function builds the codeword, the filtered codeword and index of the
+ codevector, based on the signs and positions of 10 pulses.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ c1035pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+static void build_code (
+ Word16 codvec[], // (i) : position of pulses
+ Word16 sign[], // (i) : sign of d[n]
+ Word16 cod[], // (o) : innovative code vector
+ Word16 h[], // (i) : impulse response of weighted synthesis filter
+ Word16 y[], // (o) : filtered innovative code
+ Word16 indx[] // (o) : index of 10 pulses (sign+position)
+)
+{
+ Word16 i, j, k, track, index, _sign[NB_PULSE];
+ Word16 *p0, *p1, *p2, *p3, *p4, *p5, *p6, *p7, *p8, *p9;
+ Word32 s;
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ cod[i] = 0;
+ }
+ for (i = 0; i < NB_TRACK; i++)
+ {
+ indx[i] = -1;
+ }
+
+ for (k = 0; k < NB_PULSE; k++)
+ {
+ // read pulse position
+ i = codvec[k];
+ // read sign
+ j = sign[i];
+
+ index = mult (i, 6554); // index = pos/5
+ // track = pos%5
+ track = sub (i, extract_l (L_shr (L_mult (index, 5), 1)));
+
+ if (j > 0)
+ {
+ cod[i] = add (cod[i], 4096);
+ _sign[k] = 8192;
+
+ }
+ else
+ {
+ cod[i] = sub (cod[i], 4096);
+ _sign[k] = -8192;
+ index = add (index, 8);
+ }
+
+ if (indx[track] < 0)
+ {
+ indx[track] = index;
+ }
+ else
+ {
+ if (((index ^ indx[track]) & 8) == 0)
+ {
+ // sign of 1st pulse == sign of 2nd pulse
+
+ if (sub (indx[track], index) <= 0)
+ {
+ indx[track + 5] = index;
+ }
+ else
+ {
+ indx[track + 5] = indx[track];
+ indx[track] = index;
+ }
+ }
+ else
+ {
+ // sign of 1st pulse != sign of 2nd pulse
+
+ if (sub ((Word16)(indx[track] & 7), (Word16)(index & 7)) <= 0)
+ {
+ indx[track + 5] = indx[track];
+ indx[track] = index;
+ }
+ else
+ {
+ indx[track + 5] = index;
+ }
+ }
+ }
+ }
+
+ p0 = h - codvec[0];
+ p1 = h - codvec[1];
+ p2 = h - codvec[2];
+ p3 = h - codvec[3];
+ p4 = h - codvec[4];
+ p5 = h - codvec[5];
+ p6 = h - codvec[6];
+ p7 = h - codvec[7];
+ p8 = h - codvec[8];
+ p9 = h - codvec[9];
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ s = 0;
+ s = L_mac (s, *p0++, _sign[0]);
+ s = L_mac (s, *p1++, _sign[1]);
+ s = L_mac (s, *p2++, _sign[2]);
+ s = L_mac (s, *p3++, _sign[3]);
+ s = L_mac (s, *p4++, _sign[4]);
+ s = L_mac (s, *p5++, _sign[5]);
+ s = L_mac (s, *p6++, _sign[6]);
+ s = L_mac (s, *p7++, _sign[7]);
+ s = L_mac (s, *p8++, _sign[8]);
+ s = L_mac (s, *p9++, _sign[9]);
+ y[i] = pv_round (s);
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+static void build_code(
+ Word16 codvec[], /* (i) : position of pulses */
+ Word16 sign[], /* (i) : sign of d[n] */
+ Word16 cod[], /* (o) : innovative code vector */
+ Word16 h[], /* (i) : impulse response of weighted synthesis filter*/
+ Word16 y[], /* (o) : filtered innovative code */
+ Word16 indx[], /* (o) : index of 10 pulses (sign+position) */
+ Flag *pOverflow /* i/o : overflow Flag */
+)
+{
+ Word16 i, k, track, index, _sign[NB_PULSE];
+ Word16 *p0, *p1, *p2, *p3, *p4, *p5, *p6, *p7, *p8, *p9;
+ Word32 s;
+ Word16 temp;
+ Word16 *p__sign;
+ Word16 *p_y;
+ Word16 *p_codvec;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ oscl_memset(cod, 0, L_CODE*sizeof(*cod));
+ oscl_memset(indx, 0xFF, NB_TRACK*sizeof(*indx));
+
+ p__sign = _sign;
+
+ p0 = &codvec[0];
+
+ for (k = 0; k < NB_PULSE; k++)
+ {
+ /* read pulse position */
+ i = *(p0++);
+ /* read sign */
+
+ index = ((Word32)i * 6554) >> 15; /* index = pos/5 */
+
+ /* track = pos%5 */
+ /* track = sub (i, extract_l (L_shr (L_mult (index, 5), 1))); */
+ track = i - (index + (index << 2));
+
+ if (sign[i] > 0)
+ {
+ cod[i] += 4096;
+ *(p__sign++) = 8192;
+
+ }
+ else
+ {
+ cod[i] -= 4096;
+ *(p__sign++) = -8192;
+ /* index = add (index, 8); */
+ index += 8;
+ }
+
+ p1 = &indx[track];
+
+ temp = *p1;
+
+ if (temp < 0)
+ {
+ *p1 = index;
+ }
+ else
+ {
+ if (((index ^ temp) & 8) == 0)
+ {
+ /* sign of 1st pulse == sign of 2nd pulse */
+
+ /* if (sub (indx[track], index) <= 0) */
+ if (temp <= index)
+ {
+ *(p1 + 5) = index;
+ }
+ else
+ {
+ *(p1 + 5) = temp;
+ *p1 = index;
+ }
+ }
+ else
+ {
+ /* sign of 1st pulse != sign of 2nd pulse */
+
+ /* if (sub ((Word16)(indx[track] & 7), (Word16)(index & 7)) <= 0) */
+ if ((temp & 7) <= (index & 7))
+ {
+ *(p1 + 5) = temp;
+ *p1 = index;
+ }
+ else
+ {
+ *(p1 + 5) = index;
+ }
+ }
+ }
+ }
+
+ p_codvec = &codvec[0];
+
+ p0 = h - *(p_codvec++);
+ p1 = h - *(p_codvec++);
+ p2 = h - *(p_codvec++);
+ p3 = h - *(p_codvec++);
+ p4 = h - *(p_codvec++);
+ p5 = h - *(p_codvec++);
+ p6 = h - *(p_codvec++);
+ p7 = h - *(p_codvec++);
+ p8 = h - *(p_codvec++);
+ p9 = h - *(p_codvec++);
+
+ p_y = y;
+
+ for (i = L_CODE; i != 0; i--)
+ {
+ p__sign = _sign;
+
+ s = (*p0++ * *(p__sign++)) >> 7;
+ s += (*p1++ * *(p__sign++)) >> 7;
+ s += (*p2++ * *(p__sign++)) >> 7;
+ s += (*p3++ * *(p__sign++)) >> 7;
+ s += (*p4++ * *(p__sign++)) >> 7;
+ s += (*p5++ * *(p__sign++)) >> 7;
+ s += (*p6++ * *(p__sign++)) >> 7;
+ s += (*p7++ * *(p__sign++)) >> 7;
+ s += (*p8++ * *(p__sign++)) >> 7;
+ s += (*p9++ * *(p__sign++)) >> 7;
+
+ *(p_y++) = (s + 0x080) >> 8;
+ }
+
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: code_10i40_35bits
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pSeed = pointer to the Old CN generator shift register state (Word32)
+ n_param = Number of parameters to randomize (Word16)
+ param_size_table = table holding paameter sizes (Word16)
+ param[] = array to hold CN generated paramters (Word16)
+ pOverflow = pointer to overflow flag (Flag)
+
+ Outputs:
+ param[] = CN generated parameters (Word16)
+ pSeed = Updated CN generator shift register state (Word16)
+ pOverflow -> 1 if overflow occured
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function searches a 35 bit algebraic codebook containing 10 pulses in a
+ frame of 40 samples.
+
+ The code contains 10 nonzero pulses: i0...i9.
+ All pulses can have two possible amplitudes: +1 or -1.
+ The 40 positions in a subframe are divided into 5 tracks of
+ interleaved positions. Each track contains two pulses.
+ The pulses can have the following possible positions:
+
+ i0, i5 : 0, 5, 10, 15, 20, 25, 30, 35.
+ i1, i6 : 1, 6, 11, 16, 21, 26, 31, 36.
+ i2, i7 : 2, 7, 12, 17, 22, 27, 32, 37.
+ i3, i8 : 3, 8, 13, 18, 23, 28, 33, 38.
+ i4, i9 : 4, 9, 14, 19, 24, 29, 34, 39.
+
+ Each pair of pulses require 1 bit for their signs and 6 bits for their
+ positions (3 bits + 3 bits). This results in a 35 bit codebook.
+ The function determines the optimal pulse signs and positions, builds
+ the codevector, and computes the filtered codevector.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ c1035pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+void code_10i40_35bits (
+ Word16 x[], // (i) : target vector
+ Word16 cn[], // (i) : residual after long term prediction
+ Word16 h[], // (i) : impulse response of weighted synthesis filter
+ // h[-L_subfr..-1] must be set to zero
+ Word16 cod[], // (o) : algebraic (fixed) codebook excitation
+ Word16 y[], // (o) : filtered fixed codebook excitation
+ Word16 indx[] // (o) : index of 10 pulses (sign + position)
+)
+{
+ Word16 ipos[NB_PULSE], pos_max[NB_TRACK], codvec[NB_PULSE];
+ Word16 dn[L_CODE], sign[L_CODE];
+ Word16 rr[L_CODE][L_CODE], i;
+
+ cor_h_x (h, x, dn, 2);
+ set_sign12k2 (dn, cn, sign, pos_max, NB_TRACK, ipos, STEP);
+ cor_h (h, sign, rr);
+
+ search_10and8i40 (NB_PULSE, STEP, NB_TRACK,
+ dn, rr, ipos, pos_max, codvec);
+
+ build_code (codvec, sign, cod, h, y, indx);
+ for (i = 0; i < 10; i++)
+ {
+ q_p (&indx[i], i);
+ }
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void code_10i40_35bits(
+ Word16 x[], /* (i) : target vector */
+ Word16 cn[], /* (i) : residual after long term prediction */
+ Word16 h[], /* (i) : impulse response of weighted synthesis filter
+ h[-L_subfr..-1] must be set to zero */
+ Word16 cod[], /* (o) : algebraic (fixed) codebook excitation */
+ Word16 y[], /* (o) : filtered fixed codebook excitation */
+ Word16 indx[], /* (o) : index of 10 pulses (sign + position) */
+ const Word16* gray_ptr, /* (i) : ptr to read-only table */
+ Flag *pOverflow /* (i/o) : overflow Flag */
+)
+{
+ Word16 ipos[NB_PULSE], pos_max[NB_TRACK], codvec[NB_PULSE];
+ Word16 dn[L_CODE], sign[L_CODE];
+ Word16 rr[L_CODE][L_CODE], i;
+
+ cor_h_x(h, x, dn, 2, pOverflow);
+ set_sign12k2(dn, cn, sign, pos_max, NB_TRACK, ipos, STEP, pOverflow);
+ cor_h(h, sign, rr, pOverflow);
+
+ search_10and8i40(NB_PULSE, STEP, NB_TRACK,
+ dn, rr, ipos, pos_max, codvec, pOverflow);
+
+ build_code(codvec, sign, cod, h, y, indx, pOverflow);
+ for (i = 0; i < 10; i++)
+ {
+ q_p(&indx[i], i, gray_ptr);
+ }
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c1035pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains the prototype declaration for code_10i40_35bits function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef C1035PF_H
+#define C1035PF_H "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void code_10i40_35bits(
+ Word16 x[], /* (i) : target vector */
+ Word16 cn[], /* (i) : residual after long term prediction */
+ Word16 h[], /* (i) : impulse response of weighted synthesis filter
+ h[-L_subfr..-1] must be set to zero */
+ Word16 cod[], /* (o) : algebraic (fixed) codebook excitation */
+ Word16 y[], /* (o) : filtered fixed codebook excitation */
+ Word16 indx[], /* (o) : index of 10 pulses (sign + position) */
+ const Word16* gray_ptr, /* (i) : ptr to read-only table */
+ Flag *pOverflow /* (i/o) : overflow Flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _C1035PF_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c2_11pf.cpp
+ Functions:
+ code_2i40_11bits
+ search_2i40
+ build_code
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ *************************************************************************
+ *
+ * FUNCTION: code_2i40_11bits()
+ *
+ * PURPOSE: Searches a 11 bit algebraic codebook containing 2 pulses
+ * in a frame of 40 samples.
+ *
+ * DESCRIPTION:
+ * The code length is 40, containing 2 nonzero pulses: i0...i1.
+ * All pulses can have two possible amplitudes: +1 or -1.
+ * Pulse i0 can have 2x8=16 possible positions, pulse i1 can have
+ * 4x8=32 positions.
+ *
+ * i0 : 1, 6, 11, 16, 21, 26, 31, 36.
+ * 3, 8, 13, 18, 23, 28, 33, 38.
+ * i1 : 0, 5, 10, 15, 20, 25, 30, 35.
+ * 1, 6, 11, 16, 21, 26, 31, 36.
+ * 2, 7, 12, 17, 22, 27, 32, 37.
+ * 4, 9, 14, 19, 24, 29, 34, 39.
+ *
+ *************************************************************************
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "c2_11pf.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "inv_sqrt.h"
+#include "cnst.h"
+#include "cor_h.h"
+#include "set_sign.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NB_PULSE 2
+
+#define _1_2 (Word16)(32768L/2)
+#define _1_4 (Word16)(32768L/4)
+#define _1_8 (Word16)(32768L/8)
+#define _1_16 (Word16)(32768L/16)
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+static void search_2i40(
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 rr[][L_CODE],/* i : matrix of autocorrelation */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag * pOverflow
+);
+
+static Word16 build_code(
+ Word16 codvec[], /* i : algebraic codebook vector */
+ Word16 dn_sign[], /* i : sign of dn[] */
+ Word16 cod[], /* o : algebraic (fixed) codebook excitation */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 sign[], /* o : sign of 2 pulses */
+ Flag * pOverflow
+);
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+const Word16 startPos1[2] = {1, 3};
+const Word16 startPos2[4] = {0, 1, 2, 4};
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: code_2i40_11bits
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ x, target vector, array of type Word16
+ h, impulse response of weighted synthesis filter, array of type Word16
+ T0, Pitch lag, variable of type Word16
+ pitch_sharp, Last quantized pitch gain, variable of type Word16
+
+ Outputs:
+ code[], Innovative codebook, array of type Word16
+ y[], filtered fixed codebook excitation, array of type Word16
+ sign, Signs of 2 pulses, pointer of type Word16 *
+ pOverflow Flag set when overflow occurs, pointer of type Flag *
+
+ Returns:
+ index
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Searches a 11 bit algebraic codebook containing 2 pulses
+ in a frame of 40 samples.
+
+ The code length is 40, containing 2 nonzero pulses: i0...i1.
+ All pulses can have two possible amplitudes: +1 or -1.
+ Pulse i0 can have 2x8=16 possible positions, pulse i1 can have
+ 4x8=32 positions.
+
+ i0 : 1, 6, 11, 16, 21, 26, 31, 36.
+ 3, 8, 13, 18, 23, 28, 33, 38.
+ i1 : 0, 5, 10, 15, 20, 25, 30, 35.
+ 1, 6, 11, 16, 21, 26, 31, 36.
+ 2, 7, 12, 17, 22, 27, 32, 37.
+ 4, 9, 14, 19, 24, 29, 34, 39.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ c2_11pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 code_2i40_11bits(
+ Word16 x[], /* i : target vector */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ /* h[-L_subfr..-1] must be set to zero. */
+ Word16 T0, /* i : Pitch lag */
+ Word16 pitch_sharp, /* i : Last quantized pitch gain */
+ Word16 code[], /* o : Innovative codebook */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 * sign, /* o : Signs of 2 pulses */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 codvec[NB_PULSE];
+ Word16 dn[L_CODE];
+ Word16 dn2[L_CODE];
+ Word16 dn_sign[L_CODE];
+
+ Word16 rr[L_CODE][L_CODE];
+
+ Word16 i;
+ Word16 index;
+ Word16 sharp;
+ Word16 tempWord;
+
+ sharp = pitch_sharp << 1;
+
+ if (T0 < L_CODE)
+ {
+ for (i = T0; i < L_CODE; i++)
+ {
+ tempWord =
+ mult(
+ h[i - T0],
+ sharp,
+ pOverflow);
+
+ h[i] =
+ add_16(
+ h[i],
+ tempWord,
+ pOverflow);
+ }
+
+ }
+
+ cor_h_x(
+ h,
+ x,
+ dn,
+ 1,
+ pOverflow);
+
+ set_sign(
+ dn,
+ dn_sign,
+ dn2,
+ 8); /* dn2[] not used in this codebook search */
+
+ cor_h(
+ h,
+ dn_sign,
+ rr,
+ pOverflow);
+
+ search_2i40(
+ dn,
+ rr,
+ codvec,
+ pOverflow);
+
+ /* function result */
+
+ index =
+ build_code(
+ codvec,
+ dn_sign,
+ code,
+ h,
+ y,
+ sign,
+ pOverflow);
+
+ /*
+ * Compute innovation vector gain.
+ * Include fixed-gain pitch contribution into code[].
+ */
+
+ if (T0 < L_CODE)
+ {
+ for (i = T0; i < L_CODE; i++)
+ {
+ tempWord =
+ mult(
+ code[i - T0],
+ sharp,
+ pOverflow);
+
+ code[i] =
+ add_16(
+ code[i],
+ tempWord,
+ pOverflow);
+ }
+ }
+
+ return index;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: search_2i40
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ dn, correlation between target and h[], array of type Word16
+ rr, matrix of autocorrelation, double-array of type Word16
+
+ Outputs:
+ codvec[], algebraic codebook vector, array of type Word16
+ pOverflow, Flag set when overflow occurs, pointer of type Flag *
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Search the best codevector; determine positions of the 2 pulses
+ in the 40-sample frame.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ c2_11pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void search_2i40(
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 rr[][L_CODE], /* i : matrix of autocorrelation */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i0;
+ Word16 i1;
+ Word16 ix = 0; /* initialization only needed to keep gcc silent */
+ Word16 track1;
+ Word16 track2;
+ Word16 ipos[NB_PULSE];
+
+ Word16 psk;
+ Word16 ps0;
+ Word16 ps1;
+ Word16 sq;
+ Word16 sq1;
+
+ Word16 alpk;
+ Word16 alp;
+ Word16 alp_16;
+
+ Word32 s;
+ Word32 alp0;
+ Word32 alp1;
+
+ Word16 i;
+ Word16 *p_codvec = &codvec[0];
+
+ psk = -1;
+ alpk = 1;
+
+ for (i = 0; i < NB_PULSE; i++)
+ {
+ *(p_codvec++) = i;
+ }
+
+ /*------------------------------------------------------------------*
+ * main loop: try 2x4 tracks. *
+ *------------------------------------------------------------------*/
+
+ for (track1 = 0; track1 < 2; track1++)
+ {
+ for (track2 = 0; track2 < 4; track2++)
+ {
+ /* fix starting position */
+ ipos[0] = startPos1[track1];
+ ipos[1] = startPos2[track2];
+
+ /*----------------------------------------------------------------*
+ * i0 loop: try 8 positions. *
+ *----------------------------------------------------------------*/
+ for (i0 = ipos[0]; i0 < L_CODE; i0 += STEP)
+ {
+ ps0 = dn[i0];
+
+ /* alp0 = L_mult(rr[i0][i0], _1_4, pOverflow); */
+ alp0 = (Word32) rr[i0][i0] << 14;
+
+ /*-------------------------------------------------------------*
+ * i1 loop: 8 positions. *
+ *-------------------------------------------------------------*/
+
+ sq = -1;
+ alp = 1;
+ ix = ipos[1];
+
+ /*---------------------------------------------------------------*
+ * These index have low complexity address computation because *
+ * they are, in fact, pointers with fixed increment. For example,*
+ * "rr[i0][i2]" is a pointer initialized to "&rr[i0][ipos[2]]" *
+ * and incremented by "STEP". *
+ *---------------------------------------------------------------*/
+
+ for (i1 = ipos[1]; i1 < L_CODE; i1 += STEP)
+ {
+ /* idx increment = STEP */
+ ps1 = add_16(ps0, dn[i1], pOverflow);
+
+ /* alp1 = alp0 + rr[i0][i1] + 1/2*rr[i1][i1]; */
+
+ /* idx incr = STEP */
+ /* alp1 = L_mac(alp0, rr[i1][i1], _1_4, pOverflow); */
+ alp1 = alp0 + ((Word32) rr[i1][i1] << 14);
+
+ /* idx incr = STEP */
+ /* alp1 = L_mac(alp1, rr[i0][i1], _1_2, pOverflow); */
+ alp1 += (Word32) rr[i0][i1] << 15;
+
+ /* sq1 = mult(ps1, ps1, pOverflow); */
+ sq1 = (Word16)(((Word32) ps1 * ps1) >> 15);
+
+ /* alp_16 = pv_round(alp1, pOverflow); */
+ alp_16 = (Word16)((alp1 + (Word32) 0x00008000L) >> 16);
+
+ /* s = L_mult(alp, sq1, pOverflow); */
+ s = ((Word32) alp * sq1) << 1;
+
+ /* s =L_msu(s, sq, alp_16, pOverflow); */
+ s -= (((Word32) sq * alp_16) << 1);
+
+ if (s > 0)
+ {
+ sq = sq1;
+ alp = alp_16;
+ ix = i1;
+ }
+
+ } /* for (i1 = ipos[1]; i1 < L_CODE; i1 += STEP) */
+
+ /* memorize codevector if this one is better than the last one. */
+
+ /* s = L_mult(alpk, sq, pOverflow); */
+ s = ((Word32) alpk * sq) << 1;
+
+ /* s = L_msu(s, psk, alp, pOverflow); */
+ s -= (((Word32) psk * alp) << 1);
+
+ if (s > 0)
+ {
+ psk = sq;
+ alpk = alp;
+ p_codvec = &codvec[0];
+
+ *(p_codvec++) = i0;
+ *(p_codvec) = ix;
+ }
+
+ } /* for (i0 = ipos[0]; i0 < L_CODE; i0 += STEP) */
+
+ } /* for (track2 = 0; track2 < 4; track2++) */
+
+ } /* for (track1 = 0; track1 < 2; track1++) */
+
+ return;
+
+} /* search_2i40 */
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: build_code
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ codvec, position of pulses, array of type Word16
+ dn_sign, sign of pulses, array of type Word16
+ h, impulse response of weighted synthesis filter, Word16 array
+
+ Outputs:
+
+ cod, innovative code vector, array of type Word16
+ y[], filtered innovative code, array of type Word16
+ sign[], sign of 2 pulses, array of type Word16
+ pOverflow, Flag set when overflow occurs, pointer of type Flag *
+
+ Returns:
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Builds the codeword, the filtered codeword and index of the
+ codevector, based on the signs and positions of 2 pulses.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ c2_11pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+static Word16 build_code(
+ Word16 codvec[], /* i : position of pulses */
+ Word16 dn_sign[], /* i : sign of pulses */
+ Word16 cod[], /* o : innovative code vector */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ Word16 y[], /* o : filtered innovative code */
+ Word16 sign[], /* o : sign of 2 pulses */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 j;
+ Word16 k;
+ Word16 track;
+ Word16 index;
+ Word16 _sign[NB_PULSE];
+ Word16 indx;
+ Word16 rsign;
+ Word16 tempWord;
+
+ Word16 *p0;
+ Word16 *p1;
+
+ Word32 s;
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ cod[i] = 0;
+ }
+
+ indx = 0;
+ rsign = 0;
+
+ for (k = 0; k < NB_PULSE; k++)
+ {
+ i = codvec[k]; /* read pulse position */
+ j = dn_sign[i]; /* read sign */
+
+ /* index = pos/5 */
+ /* index = mult(i, 6554, pOverflow); */
+ index = (Word16)(((Word32) i * 6554) >> 15);
+
+ /* track = pos%5 */
+ /* tempWord =
+ L_mult(
+ index,
+ 5,
+ pOverflow); */
+ tempWord = (index << 3) + (index << 1);
+
+ /* tempWord =
+ L_shr(
+ tempWord,
+ 1,
+ pOverflow); */
+ tempWord >>= 1;
+
+
+ /* track =
+ sub(
+ i,
+ tempWord,
+ pOverflow); */
+ track = i - tempWord;
+
+ tempWord = track;
+
+ if (tempWord == 0)
+ {
+ track = 1;
+
+ /* index =
+ shl(
+ index,
+ 6,
+ pOverflow); */
+ index <<= 6;
+ }
+ else if (track == 1)
+ {
+ tempWord = k;
+
+ if (tempWord == 0)
+ {
+ track = 0;
+ /* index =
+ shl(
+ index,
+ 1,
+ pOverflow); */
+ index <<= 1;
+ }
+ else
+ {
+ track = 1;
+
+ /* tempWord =
+ shl(
+ index,
+ 6,
+ pOverflow); */
+ tempWord = index << 6;
+
+ /* index =
+ add(
+ tempWord,
+ 16,
+ pOverflow); */
+ index = tempWord + 16;
+ }
+ }
+ else if (track == 2)
+ {
+ track = 1;
+
+ /* tempWord =
+ shl(
+ index,
+ 6,
+ pOverflow); */
+ tempWord = index << 6;
+
+ /* index =
+ add(
+ tempWord,
+ 32,
+ pOverflow); */
+ index = tempWord + 32;
+ }
+ else if (track == 3)
+ {
+ track = 0;
+
+ /* tempWord =
+ shl(
+ index,
+ 1,
+ pOverflow); */
+ tempWord = index << 1;
+
+ /* index =
+ add(
+ tempWord,
+ 1,
+ pOverflow); */
+ index = tempWord + 1;
+ }
+ else if (track == 4)
+ {
+ track = 1;
+
+ /* tempWord =
+ shl(
+ index,
+ 6,
+ pOverflow); */
+ tempWord = index << 6;
+
+ /* index =
+ add(
+ tempWord,
+ 48,
+ pOverflow); */
+ index = tempWord + 48;
+ }
+
+ if (j > 0)
+ {
+ cod[i] = 8191;
+ _sign[k] = 32767;
+
+ tempWord =
+ shl(
+ 1,
+ track,
+ pOverflow);
+
+ rsign =
+ add_16(
+ rsign,
+ tempWord,
+ pOverflow);
+ }
+ else
+ {
+ cod[i] = -8192;
+ _sign[k] = (Word16) - 32768L;
+ }
+
+ indx =
+ add_16(
+ indx,
+ index,
+ pOverflow);
+ }
+ *sign = rsign;
+
+ p0 = h - codvec[0];
+ p1 = h - codvec[1];
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ s = 0;
+
+ s =
+ L_mac(
+ s,
+ *p0++,
+ _sign[0],
+ pOverflow);
+
+ s =
+ L_mac(
+ s,
+ *p1++,
+ _sign[1],
+ pOverflow);
+
+ y[i] =
+ pv_round(
+ s,
+ pOverflow);
+ }
+
+ return indx;
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c2_11pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the c2_11pf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef c2_11pf_h
+#define c2_11pf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 code_2i40_11bits(
+ Word16 x[], /* i : target vector */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ /* h[-L_subfr..-1] must be set to zero. */
+ Word16 T0, /* i : Pitch lag */
+ Word16 pitch_sharp, /* i : Last quantized pitch gain */
+ Word16 code[], /* o : Innovative codebook */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 * sign, /* o : Signs of 2 pulses */
+ Flag * pOverflow
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _c2_11PF_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c2_9pf.cpp
+ Functions: code_2i40_9bits
+ search_2i40
+ Test_search_2i40
+ build_code
+ Test_build_code
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the functions that search a 9 bit algebraic codebook
+ containing 2 pulses in a frame of 40 samples.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "c2_9pf.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "inv_sqrt.h"
+#include "cnst.h"
+#include "cor_h.h"
+#include "cor_h_x.h"
+#include "set_sign.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+#define NB_PULSE 2
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ static void search_2i40(
+ Word16 subNr, /* i : subframe number */
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 rr[][L_CODE],/* i : matrix of autocorrelation */
+ const Word16* startPos_ptr, /* i: ptr to read only table */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ static Word16 build_code(
+ Word16 subNr, /* i : subframe number */
+ Word16 codvec[], /* i : algebraic codebook vector */
+ Word16 dn_sign[], /* i : sign of dn[] */
+ Word16 cod[], /* o : algebraic (fixed) codebook excitation */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 sign[], /* o : sign of 2 pulses */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ const Word16 trackTable[4*5] =
+ {
+ 0, 1, 0, 1, -1, /* subframe 1; track to code;
+ * -1 do not code this position
+ */
+ 0, -1, 1, 0, 1, /* subframe 2 */
+ 0, 1, 0, -1, 1, /* subframe 3 */
+ 0, 1, -1, 0, 1
+ };/* subframe 4 */
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: code_2i40_9bits
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ subNr = subframe number (Word16)
+ x = target buffer (Word16)
+ h = buffer containing the impulse response of the
+ weighted synthesis filter; h[-L_subfr .. -1] must be
+ set to zero (Word16)
+ T0 = pitch lag (Word16)
+ pitch_sharp = last quantized pitch gain (Word16)
+ code = buffer containing the innovative codebook (Word16)
+ y = buffer containing the filtered fixed codebook excitation (Word16)
+ sign = pointer to the signs of 2 pulses (Word16)
+
+ Outputs:
+ code buffer contains the new innovation vector gains
+
+ Returns:
+ index = code index (Word16)
+
+ Global Variables Used:
+ Overflow = overflow flag (Flag)
+
+ Local Variables Needed:
+ None
+
+ ------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function searches a 9 bit algebraic codebook containing 2 pulses in a
+ frame of 40 samples.
+
+ The code length is 40, containing 2 nonzero pulses: i0...i1. All pulses can
+ have two possible amplitudes: +1 or -1. Pulse i0 can have 8 possible positions,
+ pulse i1 can have 8 positions. Also coded is which track pair should be used,
+ i.e. first or second pair. Where each pair contains 2 tracks.
+
+ First subframe:
+ first i0 : 0, 5, 10, 15, 20, 25, 30, 35.
+ i1 : 2, 7, 12, 17, 22, 27, 32, 37.
+ second i0 : 1, 6, 11, 16, 21, 26, 31, 36.
+ i1 : 3, 8, 13, 18, 23, 28, 33, 38.
+
+ Second subframe:
+ first i0 : 0, 5, 10, 15, 20, 25, 30, 35.
+ i1 : 3, 8, 13, 18, 23, 28, 33, 38.
+ second i0 : 2, 7, 12, 17, 22, 27, 32, 37.
+ i1 : 4, 9, 14, 19, 24, 29, 34, 39.
+
+ Third subframe:
+ first i0 : 0, 5, 10, 15, 20, 25, 30, 35.
+ i1 : 2, 7, 12, 17, 22, 27, 32, 37.
+ second i0 : 1, 6, 11, 16, 21, 26, 31, 36.
+ i1 : 4, 9, 14, 19, 24, 29, 34, 39.
+
+ Fourth subframe:
+ first i0 : 0, 5, 10, 15, 20, 25, 30, 35.
+ i1 : 3, 8, 13, 18, 23, 28, 33, 38.
+ second i0 : 1, 6, 11, 16, 21, 26, 31, 36.
+ i1 : 4, 9, 14, 19, 24, 29, 34, 39.
+
+ ------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+ ------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c2_9pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+ ------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Word16 code_2i40_9bits(
+ Word16 subNr, // i : subframe number
+ Word16 x[], // i : target vector
+ Word16 h[], // i : impulse response of weighted synthesis filter
+ // h[-L_subfr..-1] must be set to zero.
+ Word16 T0, // i : Pitch lag
+ Word16 pitch_sharp, // i : Last quantized pitch gain
+ Word16 code[], // o : Innovative codebook
+ Word16 y[], // o : filtered fixed codebook excitation
+ Word16 * sign // o : Signs of 2 pulses
+ )
+ {
+ Word16 codvec[NB_PULSE];
+ Word16 dn[L_CODE], dn2[L_CODE], dn_sign[L_CODE];
+ Word16 rr[L_CODE][L_CODE];
+ Word16 i, index, sharp;
+
+ sharp = shl(pitch_sharp, 1);
+ if (sub(T0, L_CODE) < 0)
+ for (i = T0; i < L_CODE; i++) {
+ h[i] = add(h[i], mult(h[i - T0], sharp));
+ }
+ cor_h_x(h, x, dn, 1);
+ set_sign(dn, dn_sign, dn2, 8); // dn2[] not used in this codebook search
+ cor_h(h, dn_sign, rr);
+ search_2i40(subNr, dn, rr, codvec);
+ index = build_code(subNr, codvec, dn_sign, code, h, y, sign);
+
+ *-----------------------------------------------------------------*
+ * Compute innovation vector gain. *
+ * Include fixed-gain pitch contribution into code[]. *
+ *-----------------------------------------------------------------*
+
+ if (sub(T0, L_CODE) < 0)
+ for (i = T0; i < L_CODE; i++) {
+ code[i] = add(code[i], mult(code[i - T0], sharp));
+ }
+ return index;
+ }
+
+ ------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+ ------------------------------------------------------------------------------
+ */
+
+ Word16 code_2i40_9bits(
+ Word16 subNr, /* i : subframe number */
+ Word16 x[], /* i : target vector */
+ Word16 h[], /* i : impulse response of weighted synthesis */
+ /* filter h[-L_subfr..-1] must be set to 0. */
+ Word16 T0, /* i : Pitch lag */
+ Word16 pitch_sharp, /* i : Last quantized pitch gain */
+ Word16 code[], /* o : Innovative codebook */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 * sign, /* o : Signs of 2 pulses */
+ const Word16* startPos_ptr, /* ptr to read-only table */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ )
+ {
+ Word16 codvec[NB_PULSE];
+ Word16 dn[L_CODE];
+ Word16 dn2[L_CODE];
+ Word16 dn_sign[L_CODE];
+ Word16 rr[L_CODE][L_CODE];
+
+ register Word16 i;
+
+ Word16 index;
+ Word16 sharp;
+ Word16 temp;
+ Word32 L_temp;
+
+ L_temp = ((Word32) pitch_sharp) << 1;
+
+ /* Check for overflow condition */
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ *(pOverflow) = 1;
+ sharp = (pitch_sharp > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ sharp = (Word16) L_temp;
+ }
+
+ if (T0 < L_CODE)
+ {
+ for (i = T0; i < L_CODE; i++)
+ {
+ temp =
+ mult(
+ *(h + i - T0),
+ sharp,
+ pOverflow);
+
+ *(h + i) =
+ add_16(
+ *(h + i),
+ temp,
+ pOverflow);
+ }
+ }
+
+ cor_h_x(
+ h,
+ x,
+ dn,
+ 1,
+ pOverflow);
+
+ /* dn2[] not used in this codebook search */
+
+ set_sign(
+ dn,
+ dn_sign,
+ dn2,
+ 8);
+
+ cor_h(
+ h,
+ dn_sign,
+ rr,
+ pOverflow);
+
+ search_2i40(
+ subNr,
+ dn,
+ rr,
+ startPos_ptr,
+ codvec,
+ pOverflow);
+
+ index =
+ build_code(
+ subNr,
+ codvec,
+ dn_sign,
+ code,
+ h,
+ y,
+ sign,
+ pOverflow);
+
+ /*-----------------------------------------------------------------*
+ * Compute innovation vector gain. *
+ * Include fixed-gain pitch contribution into code[]. *
+ *-----------------------------------------------------------------*/
+
+ if (T0 < L_CODE)
+ {
+ for (i = T0; i < L_CODE; i++)
+ {
+ temp =
+ mult(
+ *(code + i - T0),
+ sharp,
+ pOverflow);
+
+ *(code + i) =
+ add_16(
+ *(code + i),
+ temp,
+ pOverflow);
+ }
+ }
+
+ return(index);
+ }
+
+ /****************************************************************************/
+
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: search_2i40
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ subNr = subframe number (Word16)
+ dn = vector containing the correlation between target and the impulse
+ response of the weighted synthesis filter (Word16)
+ rr = autocorrelation matrix (Word16)
+ codvec = algebraic codebook vector (Word16)
+
+ Outputs:
+ codvec contains the newly calculated codevectors
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ startPos = table containing the start positions used by fixed codebook
+ routines (const Word16)
+
+ ------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function searches the best codevector and determines the positions of
+ the 2 pulses in the 40-sample frame.
+
+ ------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+ ------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c2_9pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+ ------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ static void search_2i40(
+ Word16 subNr, // i : subframe number
+ Word16 dn[], // i : correlation between target and h[]
+ Word16 rr[][L_CODE], // i : matrix of autocorrelation
+ Word16 codvec[] // o : algebraic codebook vector
+ )
+ {
+ Word16 i0, i1;
+ Word16 ix = 0; // initialization only needed to keep gcc silent
+ Word16 track1, ipos[NB_PULSE];
+ Word16 psk, ps0, ps1, sq, sq1;
+ Word16 alpk, alp, alp_16;
+ Word32 s, alp0, alp1;
+ Word16 i;
+
+ psk = -1;
+ alpk = 1;
+ for (i = 0; i < NB_PULSE; i++)
+ {
+ codvec[i] = i;
+ }
+
+ for (track1 = 0; track1 < 2; track1++) {
+ // fix starting position
+
+ ipos[0] = startPos[subNr*2+8*track1];
+ ipos[1] = startPos[subNr*2+1+8*track1];
+
+
+ *----------------------------------------------------------------*
+ * i0 loop: try 8 positions. *
+ *----------------------------------------------------------------*
+
+ for (i0 = ipos[0]; i0 < L_CODE; i0 += STEP) {
+
+ ps0 = dn[i0];
+ alp0 = L_mult(rr[i0][i0], _1_4);
+
+ *----------------------------------------------------------------*
+ * i1 loop: 8 positions. *
+ *----------------------------------------------------------------*
+
+ sq = -1;
+ alp = 1;
+ ix = ipos[1];
+
+ *-------------------------------------------------------------------*
+ * These index have low complexity address computation because *
+ * they are, in fact, pointers with fixed increment. For example, *
+ * "rr[i0][i2]" is a pointer initialized to "&rr[i0][ipos[2]]" *
+ * and incremented by "STEP". *
+ *-------------------------------------------------------------------*
+
+ for (i1 = ipos[1]; i1 < L_CODE; i1 += STEP) {
+ ps1 = add(ps0, dn[i1]); // idx increment = STEP
+
+ // alp1 = alp0 + rr[i0][i1] + 1/2*rr[i1][i1];
+
+ alp1 = L_mac(alp0, rr[i1][i1], _1_4); // idx incr = STEP
+ alp1 = L_mac(alp1, rr[i0][i1], _1_2); // idx incr = STEP
+
+ sq1 = mult(ps1, ps1);
+
+ alp_16 = pv_round(alp1);
+
+ s = L_msu(L_mult(alp, sq1), sq, alp_16);
+
+ if (s > 0) {
+ sq = sq1;
+ alp = alp_16;
+ ix = i1;
+ }
+ }
+
+ *----------------------------------------------------------------*
+ * memorise codevector if this one is better than the last one. *
+ *----------------------------------------------------------------*
+
+ s = L_msu(L_mult(alpk, sq), psk, alp);
+
+ if (s > 0) {
+ psk = sq;
+ alpk = alp;
+ codvec[0] = i0;
+ codvec[1] = ix;
+ }
+ }
+ }
+
+ return;
+ }
+
+ ------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+ ------------------------------------------------------------------------------
+ */
+
+ static void search_2i40(
+ Word16 subNr, /* i : subframe number */
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 rr[][L_CODE], /* i : matrix of autocorrelation */
+ const Word16* startPos_ptr, /* i: ptr to read only table */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ )
+ {
+ register Word16 i0;
+ register Word16 i1;
+ Word16 ix = 0; /* initialization only needed to keep gcc silent */
+ register Word16 track1;
+ Word16 ipos[NB_PULSE];
+ Word16 psk;
+ Word16 ps0;
+ Word16 ps1;
+ Word16 sq;
+ Word16 sq1;
+ Word16 alpk;
+ Word16 alp;
+ Word16 alp_16;
+ Word32 s;
+ Word32 alp0;
+ Word32 alp1;
+ register Word16 i;
+ Word32 L_temp;
+ Word16 *p_codvec = &codvec[0];
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ psk = -1;
+ alpk = 1;
+
+ /* Unrolled the following FOR loop to save MIPS */
+ /* for (i = 0; i < NB_PULSE; i++) */
+ /* { */
+ /* *(codvec + i) = i; */
+ /* } */
+
+ *(p_codvec++) = 0;
+ *(p_codvec) = 1;
+
+ for (track1 = 0; track1 < 2; track1++)
+ {
+ /* fix starting position */
+
+ i = (subNr << 1) + (track1 << 3);
+ *ipos = *(startPos_ptr + i);
+ *(ipos + 1) = *(startPos_ptr + i + 1);
+
+
+ /*----------------------------------------------------------*
+ * i0 loop: try 8 positions. *
+ *----------------------------------------------------------*/
+
+ for (i0 = *ipos; i0 < L_CODE; i0 += STEP)
+ {
+ ps0 = *(dn + i0);
+
+ /* Left shift by 1 converts integer product to */
+ /* fractional product. */
+ alp0 = (Word32) rr[i0][i0] << 14;
+
+ /*--------------------------------------------------*
+ * i1 loop: 8 positions. *
+ *--------------------------------------------------*/
+
+ sq = -1;
+ alp = 1;
+ ix = *(ipos + 1);
+
+ /*--------------------------------------------------*
+ * These index have low complexity address *
+ * computation because they are, in fact, pointers *
+ * with fixed increment. For example, "rr[i0][i2]" *
+ * is a pointer initialized to "&rr[i0][ipos[2]]" *
+ * and incremented by "STEP". *
+ *---------------------------------------------------*/
+
+ for (i1 = *(ipos + 1); i1 < L_CODE; i1 += STEP)
+ {
+ /* idx increment = STEP */
+ /* ps1 = add(ps0, *(dn + i1), pOverflow); */
+ ps1 = ps0 + dn[i1];
+
+ /* alp1 = alp0+rr[i0][i1]+1/2*rr[i1][i1]; */
+
+ /* idx incr = STEP */
+ /* Extra left shift by 1 converts integer */
+ /* product to fractional product */
+ /* alp1 = L_add(alp0, s, pOverflow); */
+ alp1 = alp0 + ((Word32) rr[i1][i1] << 14);
+
+ /* idx incr = STEP */
+ /* Extra left shift by 1 converts integer */
+ /* product to fractional product */
+ /* alp1 = L_add(alp1, s, pOverflow); */
+ alp1 += (Word32) rr[i0][i1] << 15;
+
+ /* sq1 = mult(ps1, ps1, pOverflow); */
+ sq1 = (Word16)(((Word32) ps1 * ps1) >> 15);
+
+ /* alp_16 = pv_round(alp1, pOverflow); */
+ alp_16 = (Word16)((alp1 + (Word32) 0x00008000L) >> 16);
+
+ /* L_temp = L_mult(alp, sq1, pOverflow); */
+ L_temp = ((Word32) alp * sq1) << 1;
+
+ /* s = L_msu(L_temp, sq, alp_16, pOverflow); */
+ s = L_temp - (((Word32) sq * alp_16) << 1);
+
+ if (s > 0)
+ {
+ sq = sq1;
+ alp = alp_16;
+ ix = i1;
+ }
+ }
+
+ /* memorize codevector if this one is better than the last one. */
+
+ /* L_temp = L_mult(alpk, sq, pOverflow); */
+ L_temp = ((Word32) alpk * sq) << 1;
+
+ /* s = L_msu(L_temp, psk, alp, pOverflow); */
+ s = L_temp - (((Word32) psk * alp) << 1);
+
+ if (s > 0)
+ {
+ psk = sq;
+ alpk = alp;
+ p_codvec = &codvec[0];
+ *(p_codvec++) = i0;
+ *(p_codvec) = ix;
+ }
+ }
+ }
+
+ return;
+ }
+
+ /****************************************************************************/
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: Test_search_2i40
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ subNr = subframe number (Word16)
+ dn = vector containing the correlation between target and the impulse
+ response of the weighted synthesis filter (Word16)
+ rr = autocorrelation matrix (Word16)
+ codvec = algebraic codebook vector (Word16)
+
+ Outputs:
+ codvec contains the newly calculated codevectors
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ startPos = table containing the start positions used by fixed codebook
+ routines (const Word16)
+
+ ------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function provides external access to the local function search_2i40.
+
+ ------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+ ------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c2_9pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+ ------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ CALL search_2i40 ( subNr = subNr
+ dn = dn
+ rr = rr
+ codvec = codvec )
+ MODIFYING(nothing)
+ RETURNING(nothing)
+
+ ------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+ ------------------------------------------------------------------------------
+ */
+
+ void Test_search_2i40(
+ Word16 subNr, /* i : subframe number */
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 rr[][L_CODE], /* i : matrix of autocorrelation */
+ const Word16* startPos_ptr, /* i : ptr to read-only table */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ )
+ {
+ /*----------------------------------------------------------------------------
+ CALL search_2i40 ( subNr = subNr
+ dn = dn
+ rr = rr
+ codvec = codvec )
+ MODIFYING(nothing)
+ RETURNING(nothing)
+ ----------------------------------------------------------------------------*/
+ search_2i40(
+ subNr,
+ dn,
+ rr,
+ startPos_ptr,
+ codvec,
+ pOverflow);
+
+ return;
+ }
+
+ /****************************************************************************/
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: build_code
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ subNr = subframe number (Word16)
+ codvec = vector containing the position of pulses (Word16)
+ dn_sign = vector containing the sign of pulses (Word16)
+ cod = innovative code vector (Word16)
+ h = vector containing the impulse response of the weighted
+ synthesis filter (Word16)
+ y = vector containing the filtered innovative code (Word16)
+ sign = vector containing the sign of 2 pulses (Word16)
+
+ Outputs:
+ cod vector contains the new innovative code
+ y vector contains the new filtered innovative code
+ sign vector contains the sign of 2 pulses
+
+ Returns:
+ indx = codebook index (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ trackTable = table used for tracking codewords (Word16)
+
+ ------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function builds the codeword, the filtered codeword and index of the
+ codevector, based on the signs and positions of 2 pulses.
+
+ ------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+ ------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c2_9pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+ ------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ static Word16 build_code(
+ Word16 subNr, // i : subframe number
+ Word16 codvec[], // i : position of pulses
+ Word16 dn_sign[], // i : sign of pulses
+ Word16 cod[], // o : innovative code vector
+ Word16 h[], // i : impulse response of weighted synthesis filter
+ Word16 y[], // o : filtered innovative code
+ Word16 sign[] // o : sign of 2 pulses
+ )
+ {
+ Word16 i, j, k, track, first, index, _sign[NB_PULSE], indx, rsign;
+ Word16 *p0, *p1, *pt;
+ Word32 s;
+ static Word16 trackTable[4*5] = {
+ 0, 1, 0, 1, -1, // subframe 1; track to code; -1 do not code this position
+ 0, -1, 1, 0, 1, // subframe 2
+ 0, 1, 0, -1, 1, // subframe 3
+ 0, 1, -1, 0, 1};// subframe 4
+
+ pt = &trackTable[add(subNr, shl(subNr, 2))];
+
+ for (i = 0; i < L_CODE; i++) {
+ cod[i] = 0;
+ }
+
+ indx = 0;
+ rsign = 0;
+ for (k = 0; k < NB_PULSE; k++) {
+ i = codvec[k]; // read pulse position
+ j = dn_sign[i]; // read sign
+
+ index = mult(i, 6554); // index = pos/5
+ // track = pos%5
+ track = sub(i, extract_l(L_shr(L_mult(index, 5), 1)));
+
+ first = pt[track];
+
+ if (first == 0) {
+ if (k == 0) {
+ track = 0;
+ } else {
+ track = 1;
+ index = shl(index, 3);
+ }
+ } else {
+ if (k == 0) {
+ track = 0;
+ index = add(index, 64); // table bit is MSB
+ } else {
+ track = 1;
+ index = shl(index, 3);
+ }
+ }
+
+ if (j > 0) {
+ cod[i] = 8191;
+ _sign[k] = 32767;
+ rsign = add(rsign, shl(1, track));
+ } else {
+ cod[i] = -8192;
+ _sign[k] = (Word16) - 32768L;
+ }
+
+ indx = add(indx, index);
+ }
+ *sign = rsign;
+
+ p0 = h - codvec[0];
+ p1 = h - codvec[1];
+
+ for (i = 0; i < L_CODE; i++) {
+ s = 0;
+ s = L_mac(s, *p0++, _sign[0]);
+ s = L_mac(s, *p1++, _sign[1]);
+ y[i] = pv_round(s);
+ }
+
+ return indx;
+ }
+
+ ------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+ ------------------------------------------------------------------------------
+ */
+
+ static Word16 build_code(
+ Word16 subNr, /* i : subframe number */
+ Word16 codvec[], /* i : position of pulses */
+ Word16 dn_sign[], /* i : sign of pulses */
+ Word16 cod[], /* o : innovative code vector */
+ Word16 h[], /* i : impulse response of weighted synthesis */
+ /* filter */
+ Word16 y[], /* o : filtered innovative code */
+ Word16 sign[], /* o : sign of 2 pulses */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ )
+ {
+ register Word16 i;
+ register Word16 j;
+ register Word16 k;
+ register Word16 track;
+ register Word16 first;
+ register Word16 index;
+ register Word16 rsign;
+ Word16 indx;
+ Word16 _sign[NB_PULSE];
+ Word16 *p0;
+ Word16 *p1;
+
+ const Word16 *pt;
+
+ Word32 s;
+
+ pt = trackTable + subNr + (subNr << 2);
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ *(cod + i) = 0;
+ }
+
+ indx = 0;
+ rsign = 0;
+
+ for (k = 0; k < NB_PULSE; k++)
+ {
+ i = *(codvec + k); /* read pulse position */
+ j = *(dn_sign + i); /* read sign */
+
+ s = ((Word32)(i * 6554)) >> 15;
+ index = (Word16) s; /* index = pos/5 */
+
+ track = i - (5 * index); /* track = pos%5 */
+
+ first = *(pt + track);
+
+
+ if (k == 0)
+ {
+ track = 0;
+
+ if (first != 0)
+ {
+ index += 64; /* table bit is MSB */
+ }
+ }
+ else
+ {
+ track = 1;
+ index <<= 3;
+ }
+
+ if (j > 0)
+ {
+ *(cod + i) = 8191;
+ *(_sign + k) = 32767;
+ rsign += (1 << track);
+ }
+ else
+ {
+ *(cod + i) = ~(8192) + 1;
+ *(_sign + k) = (Word16)(~(32768) + 1);
+ }
+
+ indx += index;
+ }
+
+ *sign = rsign;
+
+ p0 = h - *codvec;
+ p1 = h - *(codvec + 1);
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ s = 0;
+ s =
+ L_mult(
+ *p0++,
+ *_sign,
+ pOverflow);
+
+ s =
+ L_mac(
+ s,
+ *p1++,
+ *(_sign + 1),
+ pOverflow);
+
+ *(y + i) =
+ pv_round(
+ s,
+ pOverflow);
+ }
+
+ return(indx);
+ }
+
+ /****************************************************************************/
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: Test_build_code
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ subNr = subframe number (Word16)
+ codvec = vector containing the position of pulses (Word16)
+ dn_sign = vector containing the sign of pulses (Word16)
+ cod = innovative code vector (Word16)
+ h = vector containing the impulse response of the weighted
+ synthesis filter (Word16)
+ y = vector containing the filtered innovative code (Word16)
+ sign = vector containing the sign of 2 pulses (Word16)
+
+ Outputs:
+ cod vector contains the new innovative code
+ y vector contains the new filtered innovative code
+ sign vector contains the sign of 2 pulses
+
+ Returns:
+ indx = codebook index (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ trackTable = table used for tracking codewords (Word16)
+
+ ------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function provides external access to the local function build_code.
+
+ ------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+ ------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c2_9pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+ ------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ CALL build_code ( subNr = subNr
+ codvec = codvec
+ dn_sign = dn_sign
+ cod = cod
+ h = h
+ y = y
+ sign = sign )
+ MODIFYING(nothing)
+ RETURNING(indx)
+
+ ------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+ ------------------------------------------------------------------------------
+ */
+
+ Word16 Test_build_code(
+ Word16 subNr, /* i : subframe number */
+ Word16 codvec[], /* i : position of pulses */
+ Word16 dn_sign[], /* i : sign of pulses */
+ Word16 cod[], /* o : innovative code vector */
+ Word16 h[], /* i : impulse response of weighted synthesis */
+ /* filter */
+ Word16 y[], /* o : filtered innovative code */
+ Word16 sign[], /* o : sign of 2 pulses */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ )
+ {
+ Word16 test_index;
+
+ /*----------------------------------------------------------------------------
+ CALL build_code ( subNr = subNr
+ codvec = codvec
+ dn_sign = dn_sign
+ cod = cod
+ h = h
+ y = y
+ sign = sign )
+ MODIFYING(nothing)
+ RETURNING(indx)
+ ----------------------------------------------------------------------------*/
+ test_index =
+ build_code(
+ subNr,
+ codvec,
+ dn_sign,
+ cod,
+ h,
+ y,
+ sign,
+ pOverflow);
+
+ return(test_index);
+ }
+
+#ifdef __cplusplus
+}
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c2_9pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the c2_9pf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef c2_9pf_h
+#define c2_9pf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 code_2i40_9bits(
+ Word16 subNr, /* i : subframe number */
+ Word16 x[], /* i : target vector */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ /* h[-L_subfr..-1] must be set to zero. */
+ Word16 T0, /* i : Pitch lag */
+ Word16 pitch_sharp, /* i : Last quantized pitch gain */
+ Word16 code[], /* o : Innovative codebook */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 * sign, /* o : Signs of 2 pulses */
+ const Word16* startPos_ptr, /* ptr to read-only table */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _c2_9PF_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c3_14pf.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "c3_14pf.h"
+#include "typedef.h"
+#include "inv_sqrt.h"
+#include "cnst.h"
+#include "cor_h.h"
+#include "set_sign.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define NB_PULSE 3
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+static void search_3i40(
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 dn2[], /* i : maximum of corr. in each track. */
+ Word16 rr[][L_CODE],/* i : matrix of autocorrelation */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+);
+
+static Word16 build_code(
+ Word16 codvec[], /* i : algebraic codebook vector */
+ Word16 dn_sign[], /* i : sign of dn[] */
+ Word16 cod[], /* o : algebraic (fixed) codebook excitation */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 sign[], /* o : sign of 3 pulses */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+);
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: code_3i40_14bits
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ x[] Array of type Word16 -- target vector
+ h[] Array of type Word16 -- impulse response of weighted synthesis filter
+ h[-L_subfr..-1] must be set to zero.
+
+ T0 Array of type Word16 -- Pitch lag
+ pitch_sharp, Array of type Word16 -- Last quantized pitch gain
+
+ Outputs:
+ code[] Array of type Word16 -- Innovative codebook
+ y[] Array of type Word16 -- filtered fixed codebook excitation
+ * sign Pointer of type Word16 -- Pointer to the signs of 3 pulses
+ pOverflow Pointer to Flag -- set when overflow occurs
+
+ Returns:
+ index
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Searches a 14 bit algebraic codebook containing 3 pulses
+ in a frame of 40 samples.
+
+ DESCRIPTION:
+ The code length is 40, containing 3 nonzero pulses: i0...i2.
+ All pulses can have two possible amplitudes: +1 or -1.
+ Pulse i0 can have 8 possible positions, pulses i1 and i2 can have
+ 2x8=16 positions.
+
+ i0 : 0, 5, 10, 15, 20, 25, 30, 35.
+ i1 : 1, 6, 11, 16, 21, 26, 31, 36.
+ 3, 8, 13, 18, 23, 28, 33, 38.
+ i2 : 2, 7, 12, 17, 22, 27, 32, 37.
+ 4, 9, 14, 19, 24, 29, 34, 39.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c3_14pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 code_3i40_14bits(
+ Word16 x[], /* i : target vector */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ /* h[-L_subfr..-1] must be set to zero. */
+ Word16 T0, /* i : Pitch lag */
+ Word16 pitch_sharp, /* i : Last quantized pitch gain */
+ Word16 code[], /* o : Innovative codebook */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 * sign, /* o : Signs of 3 pulses */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 codvec[NB_PULSE];
+ Word16 dn[L_CODE];
+ Word16 dn2[L_CODE];
+ Word16 dn_sign[L_CODE];
+ Word16 rr[L_CODE][L_CODE];
+ Word16 i;
+ Word16 index;
+ Word16 sharp;
+ Word16 tempWord;
+
+ /* sharp = shl(pitch_sharp, 1, pOverflow); */
+ sharp = pitch_sharp << 1;
+
+ if (T0 < L_CODE)
+ {
+ for (i = T0; i < L_CODE; i++)
+ {
+ tempWord =
+ mult(
+ h[i - T0],
+ sharp,
+ pOverflow);
+
+ h[i] =
+ add_16(
+ h[i],
+ tempWord,
+ pOverflow);
+ }
+ }
+
+ cor_h_x(
+ h,
+ x,
+ dn,
+ 1,
+ pOverflow);
+
+ set_sign(
+ dn,
+ dn_sign,
+ dn2,
+ 6);
+
+ cor_h(
+ h,
+ dn_sign,
+ rr,
+ pOverflow);
+
+ search_3i40(
+ dn,
+ dn2,
+ rr,
+ codvec,
+ pOverflow);
+
+ /* function result */
+ index =
+ build_code(
+ codvec,
+ dn_sign,
+ code,
+ h,
+ y,
+ sign,
+ pOverflow);
+
+ /*-----------------------------------------------------------------*
+ * Compute innovation vector gain. *
+ * Include fixed-gain pitch contribution into code[]. *
+ *-----------------------------------------------------------------*/
+
+ if (T0 < L_CODE)
+ {
+ for (i = T0; i < L_CODE; i++)
+ {
+ tempWord =
+ mult(
+ code[i - T0],
+ sharp,
+ pOverflow);
+
+ code[i] =
+ add_16(
+ code[i],
+ tempWord,
+ pOverflow);
+ }
+ }
+ return index;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: search_3i40
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ dn[] Array of type Word16 -- correlation between target and h[]
+ dn2[] Array of type Word16 -- maximum of corr. in each track.
+ rr[][L_CODE] Double Array of type Word16 -- autocorrelation matrix
+
+ Outputs:
+ codvec[] Array of type Word16 -- algebraic codebook vector
+ pOverflow Pointer to Flag -- set when overflow occurs
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Search the best codevector; determine positions of the 3 pulses
+ in the 40-sample frame.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c3_14pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+static void search_3i40(
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 dn2[], /* i : maximum of corr. in each track. */
+ Word16 rr[][L_CODE], /* i : matrix of autocorrelation */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i0;
+ Word16 i1;
+ Word16 i2;
+
+ Word16 ix = 0; /* initialization only needed to keep gcc silent */
+ Word16 ps = 0; /* initialization only needed to keep gcc silent */
+
+ Word16 i;
+ Word16 pos;
+ Word16 track1;
+ Word16 track2;
+ Word16 ipos[NB_PULSE];
+
+ Word16 psk;
+ Word16 ps0;
+ Word16 ps1;
+ Word16 sq;
+ Word16 sq1;
+ Word16 alpk;
+ Word16 alp;
+ Word16 alp_16;
+
+ Word16 *p_codvec = &codvec[0];
+
+ Word32 s;
+ Word32 alp0;
+ Word32 alp1;
+
+ psk = -1;
+ alpk = 1;
+
+ for (i = 0; i < NB_PULSE; i++)
+ {
+ *(p_codvec++) = i;
+ }
+
+ for (track1 = 1; track1 < 4; track1 += 2)
+ {
+ for (track2 = 2; track2 < 5; track2 += 2)
+ {
+ /* fix starting position */
+
+ ipos[0] = 0;
+ ipos[1] = track1;
+ ipos[2] = track2;
+
+ /*------------------------------------------------------------------*
+ * main loop: try 3 tracks. *
+ *------------------------------------------------------------------*/
+
+ for (i = 0; i < NB_PULSE; i++)
+ {
+ /*----------------------------------------------------------------*
+ * i0 loop: try 8 positions. *
+ *----------------------------------------------------------------*/
+
+ /* account for ptr. init. (rr[io]) */
+ for (i0 = ipos[0]; i0 < L_CODE; i0 += STEP)
+ {
+ if (dn2[i0] >= 0)
+ {
+ ps0 = dn[i0];
+
+ /* alp0 = L_mult(rr[i0][i0],_1_4, pOverflow); */
+ alp0 = (Word32) rr[i0][i0] << 14;
+
+ /*----------------------------------------------------------------*
+ * i1 loop: 8 positions. *
+ *----------------------------------------------------------------*/
+
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ix = ipos[1];
+
+ /* initialize 4 index for next loop. */
+ /*-------------------------------------------------------------------*
+ * These index have low complexity address computation because *
+ * they are, in fact, pointers with fixed increment. For example, *
+ * "rr[i0][i2]" is a pointer initialized to "&rr[i0][ipos[2]]" *
+ * and incremented by "STEP". *
+ *-------------------------------------------------------------------*/
+
+ for (i1 = ipos[1]; i1 < L_CODE; i1 += STEP)
+ {
+ /* idx increment = STEP */
+ /* ps1 = add(ps0, dn[i1], pOverflow); */
+ ps1 = ps0 + dn[i1];
+
+ /* alp1 = alp0 + rr[i0][i1] + 1/2*rr[i1][i1]; */
+
+ /* idx incr = STEP */
+ /* alp1 = L_mac(alp0, rr[i1][i1], _1_4, pOverflow); */
+ alp1 = alp0 + ((Word32) rr[i1][i1] << 14);
+
+ /* idx incr = STEP */
+ /* alp1 = L_mac(alp1, rr[i0][i1], _1_2, pOverflow); */
+ alp1 += (Word32) rr[i0][i1] << 15;
+
+ /* sq1 = mult(ps1, ps1, pOverflow); */
+ sq1 = (Word16)(((Word32) ps1 * ps1) >> 15);
+
+ /* alp_16 = pv_round(alp1, pOverflow); */
+ alp_16 = (Word16)((alp1 + (Word32) 0x00008000L) >> 16);
+
+ /* s = L_mult(alp, sq1, pOverflow); */
+ s = ((Word32) alp * sq1) << 1;
+
+ /* s = L_msu(s, sq, alp_16, pOverflow); */
+ s -= (((Word32) sq * alp_16) << 1);
+
+ if (s > 0)
+ {
+ sq = sq1;
+ ps = ps1;
+ alp = alp_16;
+ ix = i1;
+ }
+ }
+ i1 = ix;
+
+ /*----------------------------------------------------------------*
+ * i2 loop: 8 positions. *
+ *----------------------------------------------------------------*/
+
+ ps0 = ps;
+
+ /* alp0 = L_mult(alp, _1_4, pOverflow); */
+ alp0 = (Word32) alp << 14;
+
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ix = ipos[2];
+
+ /* initialize 4 index for next loop (see i1 loop) */
+
+ for (i2 = ipos[2]; i2 < L_CODE; i2 += STEP)
+ {
+ /* index increment = STEP */
+ /* ps1 = add(ps0, dn[i2], pOverflow); */
+ ps1 = ps0 + dn[i2];
+
+ /* alp1 = alp0 + rr[i0][i2] + rr[i1][i2] + 1/2*rr[i2][i2]; */
+
+ /* idx incr = STEP */
+ /* alp1 = L_mac(alp0, rr[i2][i2], _1_16, pOverflow); */
+ alp1 = alp0 + ((Word32) rr[i2][i2] << 12);
+
+ /* idx incr = STEP */
+ /* alp1 = L_mac(alp1, rr[i1][i2], _1_8, pOverflow); */
+ alp1 += (Word32) rr[i1][i2] << 13;
+
+ /* idx incr = STEP */
+ /* alp1 = L_mac(alp1,rr[i0][i2], _1_8, pOverflow); */
+ alp1 += (Word32) rr[i0][i2] << 13;
+
+ /* sq1 = mult(ps1, ps1, pOverflow); */
+ sq1 = (Word16)(((Word32) ps1 * ps1) >> 15);
+
+ /* alp_16 = pv_round(alp1, pOverflow); */
+ alp_16 = (Word16)((alp1 + (Word32) 0x00008000L) >> 16);
+
+ /* s = L_mult(alp, sq1, pOverflow); */
+ s = ((Word32) alp * sq1) << 1;
+
+ /* s = L_msu(s, sq, alp_16, pOverflow); */
+ s -= (((Word32) sq * alp_16) << 1);
+
+ if (s > 0)
+ {
+ sq = sq1;
+ ps = ps1;
+ alp = alp_16;
+ ix = i2;
+ }
+ }
+ i2 = ix;
+
+ /* memorize codevector if this one
+ * is better than the last one.
+ */
+
+ s = L_mult(alpk, sq, pOverflow);
+ //s = ((Word32) alpk * sq) << 1;
+
+ s = L_msu(s, psk, alp, pOverflow);
+ //s -= (((Word32) psk * alp) << 1);
+
+ if (s > 0)
+ {
+ psk = sq;
+ alpk = alp;
+ p_codvec = &codvec[0];
+
+ *(p_codvec++) = i0;
+ *(p_codvec++) = i1;
+ *(p_codvec) = i2;
+ }
+ }
+ }
+ /*----------------------------------------------------------------*
+ * Cyclic permutation of i0, i1 and i2. *
+ *----------------------------------------------------------------*/
+
+ pos = ipos[2];
+ ipos[2] = ipos[1];
+ ipos[1] = ipos[0];
+ ipos[0] = pos;
+ }
+ }
+ }
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: build_code()
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ codvec[] Array of type Word16 -- position of pulses
+ dn_sign[] Array of type Word16 -- sign of pulses
+ h[] Array of type Word16 -- impulse response of
+ weighted synthesis filter
+
+ Outputs:
+ cod[] Array of type Word16 -- innovative code vector
+ y[] Array of type Word16 -- filtered innovative code
+ sign[] Array of type Word16 -- sign of 3 pulses
+ pOverflow Pointer to Flag -- set when overflow occurs
+
+ Returns:
+ indx
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Builds the codeword, the filtered codeword and index of the
+ codevector, based on the signs and positions of 3 pulses.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c3_14pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16
+build_code(
+ Word16 codvec[], /* i : position of pulses */
+ Word16 dn_sign[], /* i : sign of pulses */
+ Word16 cod[], /* o : innovative code vector */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ Word16 y[], /* o : filtered innovative code */
+ Word16 sign[], /* o : sign of 3 pulses */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 j;
+ Word16 k;
+ Word16 track;
+ Word16 index;
+ Word16 _sign[NB_PULSE];
+ Word16 indx;
+ Word16 rsign;
+
+ Word16 *p0;
+ Word16 *p1;
+ Word16 *p2;
+
+ Word32 s;
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ cod[i] = 0;
+ }
+
+ indx = 0;
+ rsign = 0;
+
+ for (k = 0; k < NB_PULSE; k++)
+ {
+ i = codvec[k]; /* read pulse position */
+ j = dn_sign[i]; /* read sign */
+
+ /* index = pos/5 */
+ /* index = mult(i, 6554, pOverflow); */
+ index = (Word16)(((Word32) i * 6554) >> 15);
+
+ /* track = pos%5 */
+ /* s = L_mult(index, 5, pOverflow); */
+ s = ((Word32) index * 5) << 1;
+
+ /* s = L_shr(s, 1, pOverflow); */
+ s >>= 1;
+
+ /* track = sub(i, (Word16) s, pOverflow); */
+ track = i - (Word16) s;
+
+ if (track == 1)
+ {
+ /* index = shl(index, 4, pOverflow); */
+ index <<= 4;
+ }
+ else if (track == 2)
+ {
+ track = 2;
+
+ /* index = shl(index, 8, pOverflow); */
+ index <<= 8;
+ }
+ else if (track == 3)
+ {
+ track = 1;
+
+ /* index = shl(index, 4, pOverflow); */
+ index <<= 4;
+
+ /* index = add(index, 8, pOverflow); */
+ index += 8;
+ }
+ else if (track == 4)
+ {
+ track = 2;
+
+ /* index = shl(index, 8, pOverflow); */
+ index <<= 8;
+
+ /* index = add(index, 128, pOverflow); */
+ index += 128;
+ }
+
+ if (j > 0)
+ {
+ cod[i] = 8191;
+ _sign[k] = 32767;
+
+ /* track = shl(1, track, pOverflow); */
+ track = 1 << track;
+
+ /* rsign = add(rsign, track, pOverflow); */
+ rsign += track;
+ }
+ else
+ {
+ cod[i] = -8192;
+ _sign[k] = (Word16) - 32768L;
+ }
+
+ /* indx = add(indx, index, pOverflow); */
+ indx += index;
+ }
+ *sign = rsign;
+
+ p0 = h - codvec[0];
+ p1 = h - codvec[1];
+ p2 = h - codvec[2];
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ s = 0;
+ s =
+ L_mac(
+ s,
+ *p0++,
+ _sign[0],
+ pOverflow);
+
+ s =
+ L_mac(
+ s,
+ *p1++,
+ _sign[1],
+ pOverflow);
+
+ s =
+ L_mac(
+ s,
+ *p2++,
+ _sign[2],
+ pOverflow);
+
+ y[i] =
+ pv_round(
+ s,
+ pOverflow);
+ }
+
+ return indx;
+}
+
+
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c3_14pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by c3_14pf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef c3_14pf_h
+#define c3_14pf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ Word16 code_3i40_14bits(
+ Word16 x[], /* (i) : target vector */
+ Word16 h[], /* (i) : impulse response of weighted synthesis filter */
+ /* h[-L_subfr..-1] must be set to zero. */
+ Word16 T0, /* (i) : Pitch lag */
+ Word16 pitch_sharp, /* (i) : Last quantized pitch gain */
+ Word16 code[], /* (o) : Innovative codebook */
+ Word16 y[], /* (o) : filtered fixed codebook excitation */
+ Word16 * sign, /* (o) : Signs of 3 pulses */
+ Flag *pOverflow
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _c3_14PF_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c4_17pf.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Purpose : Searches a 17 bit algebraic codebook containing 4 pulses
+ in a frame of 40 samples
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "c4_17pf.h"
+#include "typedef.h"
+#include "inv_sqrt.h"
+#include "cnst.h"
+#include "cor_h.h"
+#include "set_sign.h"
+#include "basic_op.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+#define NB_PULSE 4
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ static void search_4i40(
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 dn2[], /* i : maximum of corr. in each track. */
+ Word16 rr[][L_CODE],/* i : matrix of autocorrelation */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ static Word16 build_code(
+ Word16 codvec[], /* i : algebraic codebook vector */
+ Word16 dn_sign[], /* i : sign of dn[] */
+ Word16 cod[], /* o : algebraic (fixed) codebook excitation */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 sign[], /* o : index of 4 pulses (position+sign+ampl)*4 */
+ const Word16* gray_ptr, /* i : ptr to read-only table */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: code_4i40_17bits()
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ x[] Array of type Word16 -- target vector
+ h[] Array of type Word16 -- impulse response of weighted synthesis filter
+ h[-L_subfr..-1] must be set to zero.
+
+ T0 Array of type Word16 -- Pitch lag
+ pitch_sharp, Array of type Word16 -- Last quantized pitch gain
+
+ Outputs:
+ code[] Array of type Word16 -- Innovative codebook
+ y[] Array of type Word16 -- filtered fixed codebook excitation
+ * sign Pointer of type Word16 -- Pointer to the signs of 4 pulses
+ pOverflow Pointer to Flag -- set when overflow occurs
+
+ Returns:
+ index
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+
+ ------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Searches a 17 bit algebraic codebook containing 4 pulses
+ in a frame of 40 samples.
+
+ DESCRIPTION:
+ The code length is 40, containing 4 nonzero pulses: i0...i3.
+ All pulses can have two possible amplitudes: +1 or -1.
+ Pulse i0 to i2 can have 8 possible positions, pulse i3 can have
+ 2x8=16 positions.
+
+ i0 : 0, 5, 10, 15, 20, 25, 30, 35.
+ i1 : 1, 6, 11, 16, 21, 26, 31, 36.
+ i2 : 2, 7, 12, 17, 22, 27, 32, 37.
+ i3 : 3, 8, 13, 18, 23, 28, 33, 38.
+ 4, 9, 14, 19, 24, 29, 34, 39.
+
+ ------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+ ------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c3_14pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+ ------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ ------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+ ------------------------------------------------------------------------------
+ */
+
+ Word16 code_4i40_17bits(
+ Word16 x[], /* i : target vector */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ /* h[-L_subfr..-1] must be set to zero. */
+ Word16 T0, /* i : Pitch lag */
+ Word16 pitch_sharp, /* i : Last quantized pitch gain */
+ Word16 code[], /* o : Innovative codebook */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 * sign, /* o : Signs of 4 pulses */
+ const Word16* gray_ptr, /* i : ptr to read-only table */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ )
+ {
+ Word16 codvec[NB_PULSE];
+ Word16 dn[L_CODE];
+ Word16 dn2[L_CODE];
+ Word16 dn_sign[L_CODE];
+
+ Word16 rr[L_CODE][L_CODE];
+ Word16 i;
+ Word16 index;
+ Word16 sharp;
+ Word16 tempWord;
+
+ sharp = pitch_sharp << 1;
+
+ if (T0 < L_CODE)
+ {
+ for (i = T0; i < L_CODE; i++)
+ {
+ tempWord =
+ mult(
+ h[i - T0],
+ sharp,
+ pOverflow);
+
+ h[i] =
+ add_16(
+ h[i],
+ tempWord,
+ pOverflow);
+ }
+ }
+
+ cor_h_x(
+ h,
+ x,
+ dn,
+ 1,
+ pOverflow);
+
+ set_sign(
+ dn,
+ dn_sign,
+ dn2,
+ 4);
+
+ cor_h(
+ h,
+ dn_sign,
+ rr,
+ pOverflow);
+
+ search_4i40(
+ dn,
+ dn2,
+ rr,
+ codvec,
+ pOverflow);
+
+ /* function result */
+ index =
+ build_code(
+ codvec,
+ dn_sign,
+ code,
+ h,
+ y,
+ sign,
+ gray_ptr,
+ pOverflow);
+
+ /*-----------------------------------------------------------------*
+ * Compute innovation vector gain. *
+ * Include fixed-gain pitch contribution into code[]. *
+ *-----------------------------------------------------------------*/
+
+ tempWord = T0 - L_CODE;
+
+ if (tempWord < 0)
+ {
+ for (i = T0; i < L_CODE; i++)
+ {
+ tempWord =
+ mult(
+ code[i - T0],
+ sharp,
+ pOverflow);
+
+ code[i] =
+ add_16(
+ code[i],
+ tempWord,
+ pOverflow);
+ }
+ }
+
+ return index;
+ }
+ /****************************************************************************/
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: search_4i40()
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ dn[] Array of type Word16 -- correlation between target and h[]
+ dn2[] Array of type Word16 -- maximum of corr. in each track.
+ rr[][L_CODE] Double Array of type Word16 -- autocorrelation matrix
+
+ Outputs:
+ codvec[] Array of type Word16 -- algebraic codebook vector
+ pOverflow Pointer to Flag -- set when overflow occurs
+
+ Returns:
+
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+
+
+ ------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Search the best codevector; determine positions of the 4 pulses
+ in the 40-sample frame.
+
+ ------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+ ------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c4_17pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+ ------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ ------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+ ------------------------------------------------------------------------------
+ */
+ static void search_4i40(
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 dn2[], /* i : maximum of corr. in each track. */
+ Word16 rr[][L_CODE], /* i : matrix of autocorrelation */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ )
+ {
+ Word16 i0;
+ Word16 i1;
+ Word16 i2;
+ Word16 i3;
+
+ Word16 ix = 0; /* initialization only needed to keep gcc silent */
+ Word16 ps = 0; /* initialization only needed to keep gcc silent */
+
+ Word16 i;
+ Word16 pos;
+ Word16 track;
+ Word16 ipos[NB_PULSE];
+
+ Word16 psk;
+ Word16 ps0;
+ Word16 ps1;
+ Word16 sq;
+ Word16 sq1;
+
+ Word16 alpk;
+ Word16 alp;
+ Word16 alp_16;
+ Word16 *p_codvec = &codvec[0];
+
+ Word32 s;
+ Word32 alp0;
+ Word32 alp1;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ /* Default value */
+ psk = -1;
+ alpk = 1;
+ for (i = 0; i < NB_PULSE; i++)
+ {
+ *(p_codvec++) = i;
+ }
+
+ for (track = 3; track < 5; track++)
+ {
+ /* fix starting position */
+
+ ipos[0] = 0;
+ ipos[1] = 1;
+ ipos[2] = 2;
+ ipos[3] = track;
+
+ /*------------------------------------------------------------------*
+ * main loop: try 4 tracks. *
+ *------------------------------------------------------------------*/
+
+ for (i = 0; i < NB_PULSE; i++)
+ {
+ /*----------------------------------------------------------------*
+ * i0 loop: try 4 positions (use position with max of corr.). *
+ *----------------------------------------------------------------*/
+
+ for (i0 = ipos[0]; i0 < L_CODE; i0 += STEP)
+ {
+ if (dn2[i0] >= 0)
+ {
+ ps0 = dn[i0];
+
+ alp0 = (Word32) rr[i0][i0] << 14;
+
+ /*----------------------------------------------------------------*
+ * i1 loop: 8 positions. *
+ *----------------------------------------------------------------*/
+
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ix = ipos[1];
+
+ /* initialize 4 index for next loop. */
+ /*-------------------------------------------------------------------*
+ * These index have low complexity address computation because *
+ * they are, in fact, pointers with fixed increment. For example, *
+ * "rr[i0][i3]" is a pointer initialized to "&rr[i0][ipos[3]]" *
+ * and incremented by "STEP". *
+ *-------------------------------------------------------------------*/
+
+ for (i1 = ipos[1]; i1 < L_CODE; i1 += STEP)
+ {
+ /* idx increment = STEP */
+ /* ps1 = add(ps0, dn[i1], pOverflow); */
+ ps1 = ps0 + dn[i1];
+
+ /* alp1 = alp0 + rr[i0][i1] + 1/2*rr[i1][i1]; */
+
+ /* alp1 = L_mac(alp0, rr[i1][i1], _1_4, pOverflow); */
+ alp1 = alp0 + ((Word32) rr[i1][i1] << 14);
+
+ /* alp1 = L_mac(alp1, rr[i0][i1], _1_2, pOverflow); */
+ alp1 += (Word32) rr[i0][i1] << 15;
+
+ /* sq1 = mult(ps1, ps1, pOverflow); */
+ sq1 = (Word16)(((Word32) ps1 * ps1) >> 15);
+
+ /* alp_16 = pv_round(alp1, pOverflow); */
+ alp_16 = (Word16)((alp1 + (Word32) 0x00008000L) >> 16);
+
+ /* s = L_mult(alp, sq1, pOverflow); */
+ s = ((Word32) alp * sq1) << 1;
+
+ /* s = L_msu(s, sq, alp_16, pOverflow); */
+ s -= (((Word32) sq * alp_16) << 1);
+
+ if (s > 0)
+ {
+ sq = sq1;
+ ps = ps1;
+ alp = alp_16;
+ ix = i1;
+ }
+ }
+ i1 = ix;
+
+ /*----------------------------------------------------------------*
+ * i2 loop: 8 positions. *
+ *----------------------------------------------------------------*/
+
+ ps0 = ps;
+
+ /* alp0 = L_mult(alp, _1_4, pOverflow); */
+ alp0 = (Word32) alp << 14;
+
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ix = ipos[2];
+
+ /* initialize 4 index for next loop (see i1 loop) */
+
+ for (i2 = ipos[2]; i2 < L_CODE; i2 += STEP)
+ {
+ /* index increment = STEP */
+ /* ps1 = add(ps0, dn[i2], pOverflow); */
+ ps1 = ps0 + dn[i2];
+
+ /* alp1 = alp0 + rr[i0][i2] + rr[i1][i2] + 1/2*rr[i2][i2]; */
+
+ /* idx incr = STEP */
+ /* alp1 = L_mac(alp0, rr[i2][i2], _1_16, pOverflow); */
+ alp1 = alp0 + ((Word32) rr[i2][i2] << 12);
+
+ /* idx incr = STEP */
+ /* alp1 = L_mac(alp1, rr[i1][i2], _1_8, pOverflow); */
+ alp1 += (Word32) rr[i1][i2] << 13;
+
+ /* idx incr = STEP */
+ /* alp1 = L_mac(alp1,rr[i0][i2], _1_8, pOverflow); */
+ alp1 += (Word32) rr[i0][i2] << 13;
+
+ /* sq1 = mult(ps1, ps1, pOverflow); */
+ sq1 = (Word16)(((Word32) ps1 * ps1) >> 15);
+
+ /* alp_16 = pv_round(alp1, pOverflow); */
+ alp_16 = (Word16)((alp1 + (Word32) 0x00008000L) >> 16);
+
+ /* s = L_mult(alp, sq1, pOverflow); */
+ s = ((Word32) alp * sq1) << 1;
+
+ /* s = L_msu(s, sq, alp_16, pOverflow); */
+ s -= (((Word32) sq * alp_16) << 1);
+
+ if (s > 0)
+ {
+ sq = sq1;
+ ps = ps1;
+ alp = alp_16;
+ ix = i2;
+ }
+ }
+ i2 = ix;
+
+ /*----------------------------------------------------------------*
+ * i3 loop: 8 positions. *
+ *----------------------------------------------------------------*/
+
+ ps0 = ps;
+ alp0 = ((Word32)alp << 16);
+
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ix = ipos[3];
+
+ /* initialize 5 index for next loop (see i1 loop) */
+
+ for (i3 = ipos[3]; i3 < L_CODE; i3 += STEP)
+ {
+ /* ps1 = add(ps0, dn[i3], pOverflow); */
+ ps1 = ps0 + dn[i3]; /* index increment = STEP */
+
+ /* alp1 = alp0 + rr[i0][i3] + rr[i1][i3] + rr[i2][i3] + 1/2*rr[i3][i3]; */
+
+ /* alp1 = L_mac(alp0, rr[i3][i3], _1_16, pOverflow); */
+ alp1 = alp0 + ((Word32) rr[i3][i3] << 12); /* idx incr = STEP */
+
+ /* alp1 = L_mac(alp1, rr[i2][i3], _1_8, pOverflow); */
+ alp1 += (Word32) rr[i2][i3] << 13; /* idx incr = STEP */
+
+ /* alp1 = L_mac(alp1, rr[i1][i3], _1_8, pOverflow); */
+ alp1 += (Word32) rr[i1][i3] << 13; /* idx incr = STEP */
+
+ /* alp1 = L_mac(alp1, rr[i0][i3], _1_8, pOverflow); */
+ alp1 += (Word32) rr[i0][i3] << 13; /* idx incr = STEP */
+
+ /* sq1 = mult(ps1, ps1, pOverflow); */
+ sq1 = (Word16)(((Word32) ps1 * ps1) >> 15);
+
+ /* alp_16 = pv_round(alp1, pOverflow); */
+ alp_16 = (Word16)((alp1 + (Word32) 0x00008000L) >> 16);
+
+ /* s = L_mult(alp, sq1, pOverflow); */
+ s = ((Word32) alp * sq1) << 1;
+
+ /* s = L_msu(s, sq, alp_16, pOverflow); */
+ s -= (((Word32) sq * alp_16) << 1);
+
+ if (s > 0)
+ {
+ sq = sq1;
+ ps = ps1;
+ alp = alp_16;
+ ix = i3;
+ }
+ }
+
+
+ /*----------------------------------------------------------------*
+ * memorise codevector if this one is better than the last one. *
+ *----------------------------------------------------------------*/
+
+ /* s = L_mult(alpk, sq, pOverflow); */
+ s = ((Word32) alpk * sq) << 1;
+
+ /* s = L_msu(s, psk, alp, pOverflow); */
+ s -= (((Word32) psk * alp) << 1);
+
+ if (s > 0)
+ {
+ psk = sq;
+ alpk = alp;
+ p_codvec = &codvec[0];
+
+ *(p_codvec++) = i0;
+ *(p_codvec++) = i1;
+ *(p_codvec++) = i2;
+ *(p_codvec) = ix;
+ }
+ }
+ }
+
+ /*----------------------------------------------------------------*
+ * Cyclic permutation of i0,i1,i2 and i3. *
+ *----------------------------------------------------------------*/
+
+ pos = ipos[3];
+ ipos[3] = ipos[2];
+ ipos[2] = ipos[1];
+ ipos[1] = ipos[0];
+ ipos[0] = pos;
+ }
+ }
+
+ return;
+ }
+
+
+
+
+ /****************************************************************************/
+
+ /*
+ ------------------------------------------------------------------------------
+ FUNCTION NAME: build_code()
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ codvec[] Array of type Word16 -- position of pulses
+ dn_sign[] Array of type Word16 -- sign of pulses
+ h[] Array of type Word16 -- impulse response of
+ weighted synthesis filter
+
+ Outputs:
+ cod[] Array of type Word16 -- innovative code vector
+ y[] Array of type Word16 -- filtered innovative code
+ sign[] Array of type Word16 -- index of 4 pulses (sign + position)
+ pOverflow Pointer to Flag -- set when overflow occurs
+
+ Returns:
+ indx
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+
+ ------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Builds the codeword, the filtered codeword and index of the
+ codevector, based on the signs and positions of 4 pulses.
+
+ ------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+ ------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c4_17pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+ ------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ ------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+ ------------------------------------------------------------------------------
+ */
+
+ static Word16
+ build_code(
+ Word16 codvec[], /* i : position of pulses */
+ Word16 dn_sign[], /* i : sign of pulses */
+ Word16 cod[], /* o : innovative code vector */
+ Word16 h[], /* i : impulse response of weighted synthesis filter */
+ Word16 y[], /* o : filtered innovative code */
+ Word16 sign[], /* o : index of 4 pulses (sign+position) */
+ const Word16* gray_ptr, /* i : ptr to read-only table */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ )
+ {
+ Word16 i;
+ Word16 j;
+ Word16 k;
+ Word16 track;
+ Word16 index;
+ Word16 _sign[NB_PULSE];
+ Word16 indx;
+ Word16 rsign;
+
+ Word16 *p0;
+ Word16 *p1;
+ Word16 *p2;
+ Word16 *p3;
+ Word16 *p_cod = &cod[0];
+
+ Word32 s;
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ *(p_cod++) = 0;
+ }
+
+ indx = 0;
+ rsign = 0;
+
+ for (k = 0; k < NB_PULSE; k++)
+ {
+ i = codvec[k]; /* read pulse position */
+ j = dn_sign[i]; /* read sign */
+
+ /* index = pos/5 */
+ /* index = mult(i, 6554, pOverflow); */
+ index = (Word16)(((Word32) i * 6554) >> 15);
+
+ /* track = pos%5 */
+ /* s = L_mult(index, 5, pOverflow); */
+ s = ((Word32) index * 5) << 1;
+
+ /* s = L_shr(s, 1, pOverflow); */
+ s >>= 1;
+
+ /* track = sub(i, (Word16) s, pOverflow); */
+ track = i - (Word16) s;
+
+ index = gray_ptr[index];
+
+ if (track == 1)
+ {
+ /* index = shl(index, 3, pOverflow); */
+ index <<= 3;
+ }
+ else if (track == 2)
+ {
+ /* index = shl(index, 6, pOverflow); */
+ index <<= 6;
+ }
+ else if (track == 3)
+ {
+ /* index = shl(index, 10, pOverflow); */
+ index <<= 10;
+ }
+ else if (track == 4)
+ {
+ track = 3;
+
+ /* index = shl(index, 10, pOverflow); */
+ index <<= 10;
+
+ /* index = add(index, 512, pOverflow); */
+ index += 512;
+ }
+
+ if (j > 0)
+ {
+ cod[i] = 8191;
+ _sign[k] = 32767;
+
+ /* track = shl(1, track, pOverflow); */
+ track = 1 << track;
+
+ /* rsign = add(rsign, track, pOverflow); */
+ rsign += track;
+ }
+ else
+ {
+ cod[i] = -8192;
+ _sign[k] = (Word16) - 32768L;
+ }
+
+ /* indx = add(indx, index, pOverflow); */
+ indx += index;
+ }
+ *sign = rsign;
+
+ p0 = h - codvec[0];
+ p1 = h - codvec[1];
+ p2 = h - codvec[2];
+ p3 = h - codvec[3];
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ s = 0;
+ s =
+ L_mac(
+ s,
+ *p0++,
+ _sign[0],
+ pOverflow);
+
+ s =
+ L_mac(
+ s,
+ *p1++,
+ _sign[1],
+ pOverflow);
+
+ s =
+ L_mac(
+ s,
+ *p2++,
+ _sign[2],
+ pOverflow);
+
+ s =
+ L_mac(
+ s,
+ *p3++,
+ _sign[3],
+ pOverflow);
+
+ y[i] =
+ pv_round(
+ s,
+ pOverflow);
+
+ } /* for (i = 0; i < L_CODE; i++) */
+
+ return indx;
+
+ } /* build_code */
+
+#ifdef __cplusplus
+}
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c4_17pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the c4_17pf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef c4_17pf_h
+#define c4_17pf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 code_4i40_17bits(
+ Word16 x[], /* (i) : target vector */
+ Word16 h[], /* (i) : impulse response of weighted synthesis filter */
+ /* h[-L_subfr..-1] must be set to zero. */
+ Word16 T0, /* (i) : Pitch lag */
+ Word16 pitch_sharp, /* (i) : Last quantized pitch gain */
+ Word16 code[], /* (o) : Innovative codebook */
+ Word16 y[], /* (o) : filtered fixed codebook excitation */
+ Word16 * sign, /* (o) : Signs of 4 pulses */
+ const Word16* gray_ptr, /* i : ptr to read-only table */
+ Flag * pOverflow /* (o) : Flag set when overflow occurs */
+ );
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _c4_17PF_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c8_31pf.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Purpose : Searches a 31 bit algebraic codebook containing
+ : 8 pulses in a frame of 40 samples.
+ : in the same manner as GSM-EFR
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "c8_31pf.h"
+#include "typedef.h"
+#include "cnst.h"
+#include "inv_sqrt.h"
+#include "cor_h.h"
+#include "cor_h_x2.h"
+#include "set_sign.h"
+#include "s10_8pf.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NB_PULSE 8
+
+/* define values/representation for output codevector and sign */
+#define POS_CODE 8191
+#define NEG_CODE 8191
+#define POS_SIGN 32767
+#define NEG_SIGN (Word16) (-32768L)
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ codvec[] Array of type Word16 -- position of pulses
+ sign[] Array of type Word16 -- sign of pulses
+ h[] Array of type Word16 -- impulse response of
+ weighted synthesis filter
+ Outputs:
+ cod[] Array of type Word16 -- innovative code vector
+ y[] Array of type Word16 -- filtered innovative code
+ sign_indx[] Array of type Word16 -- signs of 4 pulses (signs only)
+ pos_indx[] Array of type Word16 --
+ position index of 8 pulses(position only)
+
+ pOverflow Pointer to Flag -- set when overflow occurs
+
+ Returns:
+ indx
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c8_31pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*************************************************************************
+ *
+ * FUNCTION: build_code()
+ *
+ * PURPOSE: Builds the codeword, the filtered codeword and a
+ * linear uncombined version of the index of the
+ * codevector, based on the signs and positions of 8 pulses.
+ *
+ *************************************************************************/
+
+static void build_code(
+ Word16 codvec[], /* i : position of pulses */
+ Word16 sign[], /* i : sign of d[n] */
+ Word16 cod[], /* o : innovative code vector */
+ Word16 h[], /* i : impulse response of weighted synthesis filter*/
+ Word16 y[], /* o : filtered innovative code */
+ Word16 sign_indx[], /* o : signs of 4 pulses (signs only) */
+ Word16 pos_indx[], /* o : position index of 8 pulses(position only) */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 j;
+ Word16 k;
+ Word16 track;
+ Word16 sign_index;
+ Word16 pos_index;
+ Word16 _sign[NB_PULSE];
+
+ Word16 *p0;
+ Word16 *p1;
+ Word16 *p2;
+ Word16 *p3;
+ Word16 *p4;
+ Word16 *p5;
+ Word16 *p6;
+ Word16 *p7;
+
+ Word16 *p_cod = &cod[0];
+ Word16 *p_codvec = &codvec[0];
+
+ Word32 s;
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ *(p_cod++) = 0;
+ }
+
+ for (i = 0; i < NB_TRACK_MR102; i++)
+ {
+ pos_indx[i] = -1;
+ sign_indx[i] = -1;
+ }
+
+ for (k = 0; k < NB_PULSE; k++)
+ {
+ /* read pulse position */
+ i = codvec[k];
+ /* read sign */
+ j = sign[i];
+
+ pos_index = i >> 2; /* index = pos/4 */
+
+ track = i & 3; /* track = pos%4 */
+
+ if (j > 0)
+ {
+ cod[i] = (Word16)((Word32) cod[i] + POS_CODE);
+
+ _sign[k] = POS_SIGN;
+ sign_index = 0; /* bit=0 -> positive pulse */
+ }
+ else
+ {
+ cod[i] = (Word16)((Word32) cod[i] - NEG_CODE);
+
+ _sign[k] = NEG_SIGN;
+ sign_index = 1; /* bit=1 => negative pulse */
+ /* index = add (index, 8); 1 = negative old code */
+ }
+
+ if (pos_indx[track] < 0)
+ { /* first set first NB_TRACK pulses */
+ pos_indx[track] = pos_index;
+ sign_indx[track] = sign_index;
+ }
+ else
+ { /* 2nd row of pulses , test if positions needs to be switched */
+ if (((sign_index ^ sign_indx[track]) & 1) == 0)
+ {
+ /* sign of 1st pulse == sign of 2nd pulse */
+
+ if (pos_indx[track] <= pos_index)
+ { /* no swap */
+ pos_indx[track + NB_TRACK_MR102] = pos_index;
+ }
+ else
+ { /* swap*/
+ pos_indx[track + NB_TRACK_MR102] = pos_indx[track];
+
+ pos_indx[track] = pos_index;
+ sign_indx[track] = sign_index;
+ }
+ }
+ else
+ {
+ /* sign of 1st pulse != sign of 2nd pulse */
+
+ if (pos_indx[track] <= pos_index)
+ { /*swap*/
+ pos_indx[track + NB_TRACK_MR102] = pos_indx[track];
+
+ pos_indx[track] = pos_index;
+ sign_indx[track] = sign_index;
+ }
+ else
+ { /*no swap */
+ pos_indx[track + NB_TRACK_MR102] = pos_index;
+ }
+ }
+ }
+ }
+
+ p0 = h - *(p_codvec++);
+ p1 = h - *(p_codvec++);
+ p2 = h - *(p_codvec++);
+ p3 = h - *(p_codvec++);
+ p4 = h - *(p_codvec++);
+ p5 = h - *(p_codvec++);
+ p6 = h - *(p_codvec++);
+ p7 = h - *(p_codvec);
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ s = 0;
+
+ s =
+ L_mac(
+ s,
+ *p0++,
+ _sign[0],
+ pOverflow);
+ s =
+ L_mac(
+ s,
+ *p1++,
+ _sign[1],
+ pOverflow);
+ s =
+ L_mac(
+ s,
+ *p2++,
+ _sign[2],
+ pOverflow);
+ s =
+ L_mac(
+ s,
+ *p3++,
+ _sign[3],
+ pOverflow);
+ s =
+ L_mac(
+ s,
+ *p4++,
+ _sign[4],
+ pOverflow);
+ s =
+ L_mac(
+ s,
+ *p5++,
+ _sign[5],
+ pOverflow);
+ s =
+ L_mac(
+ s,
+ *p6++,
+ _sign[6],
+ pOverflow);
+ s =
+ L_mac(
+ s,
+ *p7++,
+ _sign[7],
+ pOverflow);
+
+ y[i] =
+ pv_round(
+ s,
+ pOverflow);
+
+ } /* for (i = 0; i < L_CODE; i++) */
+
+} /* build_code */
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: compress_code()
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+
+ Outputs:
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ FUNCTION:
+
+ PURPOSE: compression of three indeces [0..9] to one 10 bit index
+ minimizing the phase shift of a bit error.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c8_31pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 compress10(
+ Word16 pos_indxA, /* i : signs of 4 pulses (signs only) */
+ Word16 pos_indxB, /* i : position index of 8 pulses (pos only) */
+ Word16 pos_indxC, /* i : position and sign of 8 pulses (compressed) */
+ Flag *pOverflow) /* o : Flag set when overflow occurs */
+{
+ Word16 indx;
+ Word16 ia;
+ Word16 ib;
+ Word16 ic;
+
+ Word32 tempWord32;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ ia = pos_indxA >> 1;
+
+ ib = pos_indxB >> 1;
+
+ tempWord32 = ((Word32) ib * 5) << 1;
+
+ tempWord32 = tempWord32 >> 1;
+
+ ib = (Word16) tempWord32;
+
+ ic = pos_indxC >> 1;
+
+ tempWord32 = ((Word32) ic * 25) << 1;
+
+ tempWord32 = tempWord32 >> 1;
+
+ ic = (Word16) tempWord32;
+
+ ib += ic;
+
+ ib += ia;
+
+ indx = ib << 3;
+
+ ia = pos_indxA & 1;
+
+ ib = ((Word16)(pos_indxB & 1)) << 1;
+
+ ic = ((Word16)(pos_indxC & 1)) << 2;
+
+ ib += ic;
+
+ ib += ia;
+
+ indx += ib;
+
+ return indx;
+
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: compress_code()
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ sign_indx Array of type Word16 -- signs of 4 pulses (signs only)
+ pos_indx Array of type Word16 -- position index of 8 pulses
+ (position only)
+
+ Outputs:
+ indx Array of type Word16 -- position and sign of 8 pulses
+ (compressed)
+ pOverflow Pointer to Flag -- set when overflow occurs
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: compression of the linear codewords to 4+three indeces
+ one bit from each pulse is made robust to errors by
+ minimizing the phase shift of a bit error.
+ 4 signs (one for each track)
+ i0,i4,i1 => one index (7+3) bits, 3 LSBs more robust
+ i2,i6,i5 => one index (7+3) bits, 3 LSBs more robust
+ i3,i7 => one index (5+2) bits, 2-3 LSbs more robust
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c3_14pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void compress_code(
+ Word16 sign_indx[], /* i : signs of 4 pulses (signs only) */
+ Word16 pos_indx[], /* i : position index of 8 pulses (position only) */
+ Word16 indx[], /* o : position and sign of 8 pulses (compressed) */
+ Flag *pOverflow) /* o : Flag set when overflow occurs */
+{
+ Word16 i;
+ Word16 ia;
+ Word16 ib;
+ Word16 ic;
+
+ Word16 *p_indx = &indx[0];
+ Word16 *p_sign_indx = &sign_indx[0];
+
+ Word32 tempWord32;
+
+ for (i = 0; i < NB_TRACK_MR102; i++)
+ {
+ *(p_indx++) = *(p_sign_indx++);
+ }
+
+ /* First index
+ indx[NB_TRACK] = (ia/2+(ib/2)*5 +(ic/2)*25)*8 + ia%2 + (ib%2)*2 + (ic%2)*4; */
+
+ indx[NB_TRACK_MR102] =
+ compress10(
+ pos_indx[0],
+ pos_indx[4],
+ pos_indx[1],
+ pOverflow);
+
+ /* Second index
+ indx[NB_TRACK+1] = (ia/2+(ib/2)*5 +(ic/2)*25)*8 + ia%2 + (ib%2)*2 + (ic%2)*4; */
+
+ indx[NB_TRACK_MR102+1] =
+ compress10(
+ pos_indx[2],
+ pos_indx[6],
+ pos_indx[5],
+ pOverflow);
+
+ /*
+ Third index
+ if ((ib/2)%2 == 1)
+ indx[NB_TRACK+2] = ((((4-ia/2) + (ib/2)*5)*32+12)/25)*4 + ia%2 + (ib%2)*2;
+ else
+ indx[NB_TRACK+2] = ((((ia/2) + (ib/2)*5)*32+12)/25)*4 + ia%2 + (ib%2)*2;
+ */
+
+ ib = pos_indx[7] >> 1;
+
+ ib &= 1;
+
+ ia = pos_indx[3] >> 1;
+
+ if (ib == 1)
+ {
+ ia = 4 - ia;
+ }
+
+ ib = pos_indx[7] >> 1;
+
+ tempWord32 = ((Word32) ib * 5) << 1;
+
+ tempWord32 = tempWord32 >> 1;
+
+ ib = (Word16) tempWord32;
+
+ ib += ia;
+
+ ib <<= 5;
+
+ ib += 12;
+
+ ic = (Word16)(((Word32) ib * 1311) >> 15);
+
+ ic <<= 2;
+
+ ia = pos_indx[3] & 1;
+
+ ib = ((Word16)(pos_indx[7] & 1)) << 1;
+
+ ib += ic;
+
+ ib += ia;
+
+ indx[NB_TRACK_MR102+2] = ib;
+
+} /* compress_code */
+
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: code_8i40_31bits()
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ x Array of type Word16 -- target vector
+ cn Array of type Word16 -- residual after long term prediction
+ h Array of type Word16 -- impulse response of weighted synthesis filter
+
+
+ Outputs:
+ cod Array of type Word16 -- algebraic (fixed) codebook excitation
+ y Array of type Word16 -- filtered fixed codebook excitation
+ indx Array of type Word16 -- index of 8 pulses (signs+positions)
+ pOverflow Pointer to Flag -- set when overflow occurs
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ FUNCTION:
+
+ PURPOSE: Searches a 31 bit algebraic codebook containing 8 pulses
+ in a frame of 40 samples.
+
+ DESCRIPTION:
+ The code contains 8 nonzero pulses: i0...i7.
+ All pulses can have two possible amplitudes: +1 or -1.
+ The 40 positions in a subframe are divided into 4 tracks of
+ interleaved positions. Each track contains two pulses.
+ The pulses can have the following possible positions:
+
+ i0, i4 : 0, 4, 8, 12, 16, 20, 24, 28, 32, 36
+ i1, i5 : 1, 5, 9, 13, 17, 21, 25, 29, 33, 37
+ i2, i6 : 2, 6, 10, 14, 18, 22, 26, 30, 34, 38
+ i3, i7 : 3, 7, 11, 15, 19, 23, 27, 31, 35, 39
+
+ Each pair of pulses require 1 bit for their signs. The positions
+ are encoded together 3,3 and 2 resulting in
+ (7+3) + (7+3) + (5+2) bits for their
+ positions. This results in a 31 (4 sign and 27 pos) bit codebook.
+ The function determines the optimal pulse signs and positions, builds
+ the codevector, and computes the filtered codevector.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] c8_31pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void code_8i40_31bits(
+ Word16 x[], /* i : target vector */
+ Word16 cn[], /* i : residual after long term prediction */
+ Word16 h[], /* i : impulse response of weighted synthesis
+ filter */
+ Word16 cod[], /* o : algebraic (fixed) codebook excitation */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 indx[], /* o : 7 Word16, index of 8 pulses (signs+positions) */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 ipos[NB_PULSE];
+ Word16 pos_max[NB_TRACK_MR102];
+ Word16 codvec[NB_PULSE];
+
+ Word16 dn[L_CODE];
+ Word16 sign[L_CODE];
+
+ Word16 rr[L_CODE][L_CODE];
+ Word16 linear_signs[NB_TRACK_MR102];
+ Word16 linear_codewords[NB_PULSE];
+
+ cor_h_x2(
+ h,
+ x,
+ dn,
+ 2,
+ NB_TRACK_MR102,
+ STEP_MR102,
+ pOverflow);
+
+ /* 2 = use GSMEFR scaling */
+
+ set_sign12k2(
+ dn,
+ cn,
+ sign,
+ pos_max,
+ NB_TRACK_MR102,
+ ipos,
+ STEP_MR102,
+ pOverflow);
+
+ /* same setsign alg as GSM-EFR new constants though*/
+
+ cor_h(
+ h,
+ sign,
+ rr,
+ pOverflow);
+
+ search_10and8i40(
+ NB_PULSE,
+ STEP_MR102,
+ NB_TRACK_MR102,
+ dn,
+ rr,
+ ipos,
+ pos_max,
+ codvec,
+ pOverflow);
+
+ build_code(
+ codvec,
+ sign,
+ cod,
+ h,
+ y,
+ linear_signs,
+ linear_codewords,
+ pOverflow);
+
+ compress_code(
+ linear_signs,
+ linear_codewords,
+ indx,
+ pOverflow);
+
+} /* code_8i40_31bits */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: c8_31pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the c8_31pf.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef c8_31pf_h
+#define c8_31pf_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void code_8i40_31bits(
+ Word16 x[], /* i : target vector */
+ Word16 cn[], /* i : residual after long term prediction */
+ Word16 h[], /* i : impulse response of weighted synthesis
+ filter */
+ Word16 cod[], /* o : algebraic (fixed) codebook excitation */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ Word16 indx[], /* o : 7 Word16, index of 8 pulses (signs+positions) */
+ Flag * pOverflow /* o : Flag set when overflow occurs */
+ );
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _c8_31PF_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: calc_cor.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "calc_cor.h"
+#include "basic_op.h"
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: comp_corr
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ scal_sig = array of input samples. (Word16)
+ L_frame = length of frame used to compute pitch(Word16)
+ lag_max = maximum lag (Word16)
+ lag_min = minimum lag (Word16)
+ corr = pointer to array of correlations corresponding to the selected
+ lags. (Word32)
+
+ Outputs:
+ corr = pointer to array of correlations corresponding to the selected
+ lags. (Word32)
+
+ Returns:
+ none
+
+ Global Variables Used:
+ none
+
+ Local Variables Needed:
+ none
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates all correlations of scal_sig[] in a given delay
+ range.
+
+ The correlation is given by
+
+ cor[t] = <scal_sig[n],scal_sig[n-t]>, t=lag_min,...,lag_max
+
+ The function outputs all of the correlations
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ none
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] calc_cor.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void comp_corr (
+ Word16 scal_sig[], // i : scaled signal.
+ Word16 L_frame, // i : length of frame to compute pitch
+ Word16 lag_max, // i : maximum lag
+ Word16 lag_min, // i : minimum lag
+ Word32 corr[]) // o : correlation of selected lag
+{
+ Word16 i, j;
+ Word16 *p, *p1;
+ Word32 t0;
+
+ for (i = lag_max; i >= lag_min; i--)
+ {
+ p = scal_sig;
+ p1 = &scal_sig[-i];
+ t0 = 0;
+
+ for (j = 0; j < L_frame; j++, p++, p1++)
+ {
+ t0 = L_mac (t0, *p, *p1);
+ }
+ corr[-i] = t0;
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void comp_corr(
+ Word16 scal_sig[], /* i : scaled signal. */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 lag_max, /* i : maximum lag */
+ Word16 lag_min, /* i : minimum lag */
+ Word32 corr[]) /* o : correlation of selected lag */
+{
+
+
+
+
+ /*---------------------------------------------------
+ ; lag_max and lag_min are typically negative numbers
+ -----------------------------------------------------*/
+
+
+ /* PIT_MIN_MR122 18 Minimum pitch lag (MR122 mode) */
+ /* PIT_MIN 20 Minimum pitch lag (all other modes) */
+ /* PIT_MAX 143 Maximum pitch lag */
+
+
+ Word16 i;
+ Word16 j;
+ Word16 *p;
+ Word16 *p1;
+ Word16 *p2;
+ Word16 *p_scal_sig;
+ Word32 t1;
+ Word32 t2;
+ Word32 t3;
+ Word32 t4;
+
+ corr = corr - lag_max ;
+ p_scal_sig = &scal_sig[-lag_max];
+
+ for (i = ((lag_max - lag_min) >> 2) + 1; i > 0; i--)
+ {
+ t1 = 0;
+ t2 = 0;
+ t3 = 0;
+ t4 = 0;
+ p = &scal_sig[0];
+ p1 = p_scal_sig++;
+ p_scal_sig++;
+ p2 = p_scal_sig++;
+ p_scal_sig++;
+ for (j = (L_frame >> 1); j != 0; j--)
+ {
+ t1 = amrnb_fxp_mac_16_by_16bb((Word32) * (p), (Word32) * (p1++), t1);
+ t2 = amrnb_fxp_mac_16_by_16bb((Word32) * (p), (Word32) * (p1), t2);
+ t3 = amrnb_fxp_mac_16_by_16bb((Word32) * (p), (Word32) * (p2++), t3);
+ t4 = amrnb_fxp_mac_16_by_16bb((Word32) * (p++), (Word32) * (p2), t4);
+
+ t1 = amrnb_fxp_mac_16_by_16bb((Word32) * (p), (Word32) * (p1++), t1);
+ t2 = amrnb_fxp_mac_16_by_16bb((Word32) * (p), (Word32) * (p1), t2);
+ t3 = amrnb_fxp_mac_16_by_16bb((Word32) * (p), (Word32) * (p2++), t3);
+ t4 = amrnb_fxp_mac_16_by_16bb((Word32) * (p++), (Word32) * (p2), t4);
+ }
+
+ *(corr++) = t1 << 1;
+ *(corr++) = t2 << 1;
+ *(corr++) = t3 << 1;
+ *(corr++) = t4 << 1;
+
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : calc_cor.h
+* Purpose : Calculate all correlations for prior the OL LTP
+*
+********************************************************************************
+*/
+#ifndef calc_cor_h
+#define calc_cor_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * DECLARATION OF PROTOTYPES
+ ********************************************************************************
+ */
+ /*************************************************************************
+ *
+ * FUNCTION: comp_corr
+ *
+ * PURPOSE: Calculate all correlations of scal_sig[] in a given delay
+ * range.
+ *
+ * DESCRIPTION:
+ * The correlation is given by
+ * cor[t] = <scal_sig[n], scal_sig[n-t]>, t=lag_min,...,lag_max
+ * The functions outputs all correlations in the given range
+ *
+ *************************************************************************/
+ void comp_corr(Word16 scal_sig[], /* i : scaled signal. */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 lag_max, /* i : maximum lag */
+ Word16 lag_min, /* i : minimum lag */
+ Word32 corr[] /* o : correlation of selected lag */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: calc_en.cpp
+ Funtions: calc_unfilt_energies
+ calc_filt_energies
+ calc_target_energy
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the functions that calculate the energy coefficients
+ for unfiltered and filtered excitation signals, the LTP coding gain, and
+ the target energy.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "calc_en.h"
+#include "typedef.h"
+#include "basicop_malloc.h"
+#include "l_comp.h"
+#include "cnst.h"
+#include "log2.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: calc_unfilt_energies
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ res = LP residual, buffer type Word16
+ exc = LTP excitation (unfiltered), buffer type Word16
+ code = CB innovation (unfiltered), buffer type Word16
+ gain_pit = pitch gain, type Word16
+ L_subfr = Subframe length, type Word16
+ frac_en = energy coefficients (4), fraction part, buffer type Word16
+ exp_en = energy coefficients (4), exponent part, buffer type Word16
+ ltpg = LTP coding gain (log2()), pointer to type Word16
+ pOverflow= pointer to value indicating existence of overflow (Flag)
+
+ Outputs:
+ frac_en buffer containing new fractional parts of energy coefficients
+ exp_en buffer containing new exponential parts of energy coefficients
+ ltpg points to new LTP coding gain
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates several energy coefficients for unfiltered
+ excitation signals and the LTP coding gain
+
+ frac_en[0]*2^exp_en[0] = <res res> LP residual energy
+ frac_en[1]*2^exp_en[1] = <exc exc> LTP residual energy
+ frac_en[2]*2^exp_en[2] = <exc code> LTP/CB innovation dot product
+ frac_en[3]*2^exp_en[3] = <lres lres> LTP residual energy
+ (lres = res - gain_pit*exc)
+ ltpg = log2(LP_res_en / LTP_res_en)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ calc_en.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void
+calc_unfilt_energies(
+ Word16 res[], // i : LP residual, Q0
+ Word16 exc[], // i : LTP excitation (unfiltered), Q0
+ Word16 code[], // i : CB innovation (unfiltered), Q13
+ Word16 gain_pit, // i : pitch gain, Q14
+ Word16 L_subfr, // i : Subframe length
+
+ Word16 frac_en[], // o : energy coefficients (4), fraction part, Q15
+ Word16 exp_en[], // o : energy coefficients (4), exponent part, Q0
+ Word16 *ltpg // o : LTP coding gain (log2()), Q13
+)
+{
+ Word32 s, L_temp;
+ Word16 i, exp, tmp;
+ Word16 ltp_res_en, pred_gain;
+ Word16 ltpg_exp, ltpg_frac;
+
+ // Compute residual energy
+ s = L_mac((Word32) 0, res[0], res[0]);
+ for (i = 1; i < L_subfr; i++)
+ s = L_mac(s, res[i], res[i]);
+
+ // ResEn := 0 if ResEn < 200.0 (= 400 Q1)
+ if (L_sub (s, 400L) < 0)
+ {
+ frac_en[0] = 0;
+ exp_en[0] = -15;
+ }
+ else
+ {
+ exp = norm_l(s);
+ frac_en[0] = extract_h(L_shl(s, exp));
+ exp_en[0] = sub(15, exp);
+ }
+
+ // Compute ltp excitation energy
+ s = L_mac((Word32) 0, exc[0], exc[0]);
+ for (i = 1; i < L_subfr; i++)
+ s = L_mac(s, exc[i], exc[i]);
+
+ exp = norm_l(s);
+ frac_en[1] = extract_h(L_shl(s, exp));
+ exp_en[1] = sub(15, exp);
+
+ // Compute scalar product <exc[],code[]>
+ s = L_mac((Word32) 0, exc[0], code[0]);
+ for (i = 1; i < L_subfr; i++)
+ s = L_mac(s, exc[i], code[i]);
+
+ exp = norm_l(s);
+ frac_en[2] = extract_h(L_shl(s, exp));
+ exp_en[2] = sub(16-14, exp);
+
+ // Compute energy of LTP residual
+ s = 0L;
+ for (i = 0; i < L_subfr; i++)
+ {
+ L_temp = L_mult(exc[i], gain_pit);
+ L_temp = L_shl(L_temp, 1);
+ tmp = sub(res[i], pv_round(L_temp)); // LTP residual, Q0
+ s = L_mac (s, tmp, tmp);
+ }
+
+ exp = norm_l(s);
+ ltp_res_en = extract_h (L_shl (s, exp));
+ exp = sub (15, exp);
+
+ frac_en[3] = ltp_res_en;
+ exp_en[3] = exp;
+
+ // calculate LTP coding gain, i.e. energy reduction LP res -> LTP res
+ if (ltp_res_en > 0 && frac_en[0] != 0)
+ {
+ // gain = ResEn / LTPResEn
+ pred_gain = div_s (shr (frac_en[0], 1), ltp_res_en);
+ exp = sub (exp, exp_en[0]);
+
+ // L_temp = ltpGain * 2^(30 + exp)
+ L_temp = L_deposit_h (pred_gain);
+ // L_temp = ltpGain * 2^27
+ L_temp = L_shr (L_temp, add (exp, 3));
+
+ // Log2 = log2() + 27
+ Log2(L_temp, <pg_exp, <pg_frac);
+
+ // ltpg = log2(LtpGain) * 2^13 --> range: +- 4 = +- 12 dB
+ L_temp = L_Comp (sub (ltpg_exp, 27), ltpg_frac);
+ *ltpg = pv_round (L_shl (L_temp, 13)); // Q13
+ }
+ else
+ {
+ *ltpg = 0;
+ }
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void calc_unfilt_energies(
+ Word16 res[], /* i : LP residual, Q0 */
+ Word16 exc[], /* i : LTP excitation (unfiltered), Q0 */
+ Word16 code[], /* i : CB innovation (unfiltered), Q13 */
+ Word16 gain_pit, /* i : pitch gain, Q14 */
+ Word16 L_subfr, /* i : Subframe length */
+
+ Word16 frac_en[], /* o : energy coefficients (4), fraction part, Q15 */
+ Word16 exp_en[], /* o : energy coefficients (4), exponent part, Q0 */
+ Word16 *ltpg, /* o : LTP coding gain (log2()), Q13 */
+ Flag *pOverflow
+)
+{
+ Word32 s1; /* Intermediate energy accumulator */
+ Word32 s2; /* Intermediate energy accumulator */
+ Word32 s3; /* Intermediate energy accumulator */
+ Word32 s4; /* Intermediate energy accumulator */
+ Word32 L_temp; /* temporal 32 bits storage */
+
+ Word16 i; /* index used in all loops */
+ Word16 exp; /* nunmber of '0's or '1's before MSB != 0 */
+ Word16 tmp1; /* temporal storage */
+ Word16 tmp2; /* temporal storage */
+ Word16 ltp_res_en;
+ Word16 pred_gain; /* predictor gain */
+ Word16 ltpg_exp; /* LTP gain (exponent) */
+ Word16 ltpg_frac; /* LTP gain (mantissa or fractional part) */
+
+ s1 = 0;
+ s2 = 0;
+ s3 = 0;
+ s4 = 0;
+
+ /*----------------------------------------------------------------------------
+ NOTE: Overflow is expected as a result of multiply and accumulated without
+ scale down the inputs. This modification is not made at this point
+ to have bit exact results with the pre-optimization code. (JT 6/20/00)
+
+ ----------------------------------------------------------------------------*/
+
+ for (i = 0; i < L_subfr; i++)
+ {
+ tmp1 = res[i]; /* avoid multiple accesses to memory */
+ tmp2 = exc[i];
+
+ s1 = amrnb_fxp_mac_16_by_16bb((Word32) tmp1, (Word32) tmp1, s1); /* Compute residual energy */
+ s2 = amrnb_fxp_mac_16_by_16bb((Word32) tmp2, (Word32) tmp2, s2); /* Compute ltp excitation energy */
+ s3 = amrnb_fxp_mac_16_by_16bb((Word32) tmp2, (Word32) code[i], s3);/* Compute scalar product */
+ /* <exc[],code[]> */
+
+ L_temp = L_mult(tmp2, gain_pit, pOverflow);
+ L_temp = L_shl(L_temp, 1, pOverflow);
+ tmp2 = sub(tmp1, pv_round(L_temp, pOverflow), pOverflow);
+ /* LTP residual, Q0 */
+ s4 = L_mac(s4, tmp2, tmp2, pOverflow);
+ /* Compute energy of LTP residual */
+ }
+ s1 = s1 << 1;
+ s2 = s2 << 1;
+ s3 = s3 << 1;
+
+ if (s1 & MIN_32)
+ {
+ s1 = MAX_32;
+ *pOverflow = 1;
+ }
+
+ /* ResEn := 0 if ResEn < 200.0 (= 400 Q1) */
+ if (s1 < 400L)
+ {
+ frac_en[0] = 0;
+ exp_en[0] = -15;
+ }
+ else
+ {
+ exp = norm_l(s1);
+ frac_en[0] = (Word16)(L_shl(s1, exp, pOverflow) >> 16);
+ exp_en[0] = (15 - exp);
+ }
+
+ if (s2 & MIN_32)
+ {
+ s2 = MAX_32;
+ *pOverflow = 1;
+ }
+
+ exp = norm_l(s2);
+ frac_en[1] = (Word16)(L_shl(s2, exp, pOverflow) >> 16);
+ exp_en[1] = 15 - exp;
+
+ /* s3 is not always sum of squares */
+ exp = norm_l(s3);
+ frac_en[2] = (Word16)(L_shl(s3, exp, pOverflow) >> 16);
+ exp_en[2] = 2 - exp;
+
+ exp = norm_l(s4);
+ ltp_res_en = (Word16)(L_shl(s4, exp, pOverflow) >> 16);
+ exp = 15 - exp;
+
+ frac_en[3] = ltp_res_en;
+ exp_en[3] = exp;
+
+ /* calculate LTP coding gain, i.e. energy reduction LP res -> LTP res */
+
+ if (ltp_res_en > 0 && frac_en[0] != 0)
+ {
+ /* gain = ResEn / LTPResEn */
+ pred_gain = div_s(shr(frac_en[0], 1, pOverflow), ltp_res_en);
+ exp = sub(exp, exp_en[0], pOverflow);
+
+ /* L_temp = ltpGain * 2^(30 + exp) */
+ L_temp = (Word32) pred_gain << 16;
+ /* L_temp = ltpGain * 2^27 */
+ L_temp = L_shr(L_temp, (Word16)(exp + 3), pOverflow);
+
+ /* Log2 = log2() + 27 */
+ Log2(L_temp, <pg_exp, <pg_frac, pOverflow);
+
+ /* ltpg = log2(LtpGain) * 2^13 --> range: +- 4 = +- 12 dB */
+ L_temp = L_Comp((ltpg_exp - 27), ltpg_frac, pOverflow);
+ *ltpg = pv_round(L_shl(L_temp, 13, pOverflow), pOverflow); /* Q13 */
+ }
+ else
+ {
+ *ltpg = 0;
+ }
+
+ return;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: calc_filt_energies
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ mode = coder mode, type Mode
+ xn = LTP target vector, buffer type Word16
+ xn2 = CB target vector, buffer type Word16
+ y1 = Adaptive codebook, buffer type Word16
+ Y2 = Filtered innovative vector, buffer type Word16
+ g_coeff = Correlations <xn y1> <y1 y1>
+ computed in G_pitch() buffer type Word16
+ frac_coeff = energy coefficients (5), fraction part, buffer type Word16
+ exp_coeff = energy coefficients (5), exponent part, buffer type Word16
+ cod_gain_frac = optimum codebook gain (fraction part), pointer type Word16
+ cod_gain_exp = optimum codebook gain (exponent part), pointer type Word16
+ pOverflow = pointer to overflow indicator (Flag)
+
+ Outputs:
+ frac_coeff contains new fraction part energy coefficients
+ exp_coeff contains new exponent part energy coefficients
+ cod_gain_frac points to the new optimum codebook gain (fraction part)
+ cod_gain_exp points to the new optimum codebook gain (exponent part)
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates several energy coefficients for filtered
+ excitation signals
+
+ Compute coefficients need for the quantization and the optimum
+ codebook gain gcu (for MR475 only).
+
+ coeff[0] = y1 y1
+ coeff[1] = -2 xn y1
+ coeff[2] = y2 y2
+ coeff[3] = -2 xn y2
+ coeff[4] = 2 y1 y2
+
+ gcu = <xn2, y2> / <y2, y2> (0 if <xn2, y2> <= 0)
+
+ Product <y1 y1> and <xn y1> have been computed in G_pitch() and
+ are in vector g_coeff[].
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ calc_en.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void
+calc_filt_energies(
+ enum Mode mode, // i : coder mode
+ Word16 xn[], // i : LTP target vector, Q0
+ Word16 xn2[], // i : CB target vector, Q0
+ Word16 y1[], // i : Adaptive codebook, Q0
+ Word16 Y2[], // i : Filtered innovative vector, Q12
+ Word16 g_coeff[], // i : Correlations <xn y1> <y1 y1>
+ // computed in G_pitch()
+
+ Word16 frac_coeff[],// o : energy coefficients (5), fraction part, Q15
+ Word16 exp_coeff[], // o : energy coefficients (5), exponent part, Q0
+ Word16 *cod_gain_frac,// o: optimum codebook gain (fraction part), Q15
+ Word16 *cod_gain_exp // o: optimum codebook gain (exponent part), Q0
+)
+{
+ Word32 s, ener_init;
+ Word16 i, exp, frac;
+ Word16 y2[L_SUBFR];
+
+ if (sub(mode, MR795) == 0 || sub(mode, MR475) == 0)
+ {
+ ener_init = 0L;
+ }
+ else
+ {
+ ener_init = 1L;
+ }
+
+ for (i = 0; i < L_SUBFR; i++) {
+ y2[i] = shr(Y2[i], 3);
+ }
+
+ frac_coeff[0] = g_coeff[0];
+ exp_coeff[0] = g_coeff[1];
+ frac_coeff[1] = negate(g_coeff[2]); // coeff[1] = -2 xn y1
+ exp_coeff[1] = add(g_coeff[3], 1);
+
+
+ // Compute scalar product <y2[],y2[]>
+
+ s = L_mac(ener_init, y2[0], y2[0]);
+ for (i = 1; i < L_SUBFR; i++)
+ s = L_mac(s, y2[i], y2[i]);
+
+ exp = norm_l(s);
+ frac_coeff[2] = extract_h(L_shl(s, exp));
+ exp_coeff[2] = sub(15 - 18, exp);
+
+ // Compute scalar product -2*<xn[],y2[]>
+
+ s = L_mac(ener_init, xn[0], y2[0]);
+ for (i = 1; i < L_SUBFR; i++)
+ s = L_mac(s, xn[i], y2[i]);
+
+ exp = norm_l(s);
+ frac_coeff[3] = negate(extract_h(L_shl(s, exp)));
+ exp_coeff[3] = sub(15 - 9 + 1, exp);
+
+
+ // Compute scalar product 2*<y1[],y2[]>
+
+ s = L_mac(ener_init, y1[0], y2[0]);
+ for (i = 1; i < L_SUBFR; i++)
+ s = L_mac(s, y1[i], y2[i]);
+
+ exp = norm_l(s);
+ frac_coeff[4] = extract_h(L_shl(s, exp));
+ exp_coeff[4] = sub(15 - 9 + 1, exp);
+
+ if (sub(mode, MR475) == 0 || sub(mode, MR795) == 0)
+ {
+ // Compute scalar product <xn2[],y2[]>
+
+ s = L_mac(ener_init, xn2[0], y2[0]);
+ for (i = 1; i < L_SUBFR; i++)
+ s = L_mac(s, xn2[i], y2[i]);
+
+ exp = norm_l(s);
+ frac = extract_h(L_shl(s, exp));
+ exp = sub(15 - 9, exp);
+
+
+ if (frac <= 0)
+ {
+ *cod_gain_frac = 0;
+ *cod_gain_exp = 0;
+ }
+ else
+ {
+ //
+ gcu = <xn2, y2> / c[2]
+ = (frac>>1)/frac[2] * 2^(exp+1-exp[2])
+ = div_s(frac>>1, frac[2])*2^-15 * 2^(exp+1-exp[2])
+ = div_s * 2^(exp-exp[2]-14)
+
+ *cod_gain_frac = div_s (shr (frac,1), frac_coeff[2]);
+ *cod_gain_exp = sub (sub (exp, exp_coeff[2]), 14);
+
+ }
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void calc_filt_energies(
+ enum Mode mode, /* i : coder mode */
+ Word16 xn[], /* i : LTP target vector, Q0 */
+ Word16 xn2[], /* i : CB target vector, Q0 */
+ Word16 y1[], /* i : Adaptive codebook, Q0 */
+ Word16 Y2[], /* i : Filtered innovative vector, Q12 */
+ Word16 g_coeff[], /* i : Correlations <xn y1> <y1 y1> */
+ /* computed in G_pitch() */
+ Word16 frac_coeff[], /* o : energy coefficients (5), fraction part, Q15 */
+ Word16 exp_coeff[], /* o : energy coefficients (5), exponent part, Q0 */
+ Word16 *cod_gain_frac, /* o : optimum codebook gain (fraction part),Q15 */
+ Word16 *cod_gain_exp, /* o : optimum codebook gain (exponent part), Q0 */
+ Flag *pOverflow
+)
+{
+ Word32 s1; /* Intermediate energy accumulator */
+ Word32 s2; /* Intermediate energy accumulator */
+ Word32 s3; /* Intermediate energy accumulator */
+
+ Word16 i; /* index used in all loops */
+ Word16 exp; /* number of '0's or '1's before MSB != 0 */
+ Word16 frac; /* fractional part */
+ Word16 tmp; /* temporal storage */
+ Word16 scaled_y2[L_SUBFR];
+
+
+ frac_coeff[0] = g_coeff[0];
+ exp_coeff[0] = g_coeff[1];
+ frac_coeff[1] = negate(g_coeff[2]); /* coeff[1] = -2 xn y1 */
+ exp_coeff[1] = g_coeff[3] + 1;
+
+ if ((mode == MR795) || (mode == MR475))
+ {
+ s1 = 0L;
+ s2 = 0L;
+ s3 = 0L;
+ }
+ else
+ {
+ s1 = 1L;
+ s2 = 1L;
+ s3 = 1L;
+ }
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ /* avoid multiple accesses to memory */
+ tmp = (Y2[i] >> 3);
+ scaled_y2[i] = tmp;
+
+ /* Compute scalar product <scaled_y2[],scaled_y2[]> */
+ s1 = L_mac(s1, tmp, tmp, pOverflow);
+
+ /* Compute scalar product -2*<xn[],scaled_y2[]> */
+ s2 = L_mac(s2, xn[i], tmp, pOverflow);
+
+ /* Compute scalar product 2*<y1[],scaled_y2[]> */
+ s3 = L_mac(s3, y1[i], tmp, pOverflow);
+ }
+
+ exp = norm_l(s1);
+ frac_coeff[2] = (Word16)(L_shl(s1, exp, pOverflow) >> 16);
+ exp_coeff[2] = (-3 - exp);
+
+ exp = norm_l(s2);
+ frac_coeff[3] = negate((Word16)(L_shl(s2, exp, pOverflow) >> 16));
+ exp_coeff[3] = (7 - exp);
+
+ exp = norm_l(s3);
+ frac_coeff[4] = (Word16)(L_shl(s3, exp, pOverflow) >> 16);
+ exp_coeff[4] = (7 - exp);
+
+
+ if ((mode == MR795) || (mode == MR475))
+ {
+ /* Compute scalar product <xn2[],scaled_y2[]> */
+ s1 = 0L;
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ s1 = amrnb_fxp_mac_16_by_16bb((Word32) xn2[i], (Word32)scaled_y2[i], s1);
+ }
+
+ s1 = s1 << 1;
+
+ exp = norm_l(s1);
+ frac = (Word16)(L_shl(s1, exp, pOverflow) >> 16);
+ exp = (6 - exp);
+
+ if (frac <= 0)
+ {
+ *cod_gain_frac = 0;
+ *cod_gain_exp = 0;
+ }
+ else
+ {
+ /*
+ gcu = <xn2, scaled_y2> / c[2]
+ = (frac>>1)/frac[2] * 2^(exp+1-exp[2])
+ = div_s(frac>>1, frac[2])*2^-15 * 2^(exp+1-exp[2])
+ = div_s * 2^(exp-exp[2]-14)
+ */
+ *cod_gain_frac = div_s(shr(frac, 1, pOverflow), frac_coeff[2]);
+ *cod_gain_exp = ((exp - exp_coeff[2]) - 14);
+ }
+ }
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: calc_target_energy
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ xn = LTP target vector, buffer to type Word16 Q0
+ en_exp = optimum codebook gain (exponent part) pointer to type Word16
+ en_frac = optimum codebook gain (fraction part) pointer to type Word16
+ pOverflow = pointer to overflow indicator (Flag)
+
+ Outputs:
+ en_exp points to new optimum codebook gain (exponent part)
+ en_frac points to new optimum codebook gain (fraction part)
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates the target energy using the formula,
+ en = <xn, xn>
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ calc_en.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void
+calc_target_energy(
+ Word16 xn[], // i: LTP target vector, Q0
+ Word16 *en_exp, // o: optimum codebook gain (exponent part), Q0
+ Word16 *en_frac // o: optimum codebook gain (fraction part), Q15
+)
+{
+ Word32 s;
+ Word16 i, exp;
+
+ // Compute scalar product <xn[], xn[]>
+ s = L_mac(0L, xn[0], xn[0]);
+ for (i = 1; i < L_SUBFR; i++)
+ s = L_mac(s, xn[i], xn[i]);
+
+ // s = SUM 2*xn(i) * xn(i) = <xn xn> * 2
+ exp = norm_l(s);
+ *en_frac = extract_h(L_shl(s, exp));
+ *en_exp = sub(16, exp);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void calc_target_energy(
+ Word16 xn[], /* i: LTP target vector, Q0 */
+ Word16 *en_exp, /* o: optimum codebook gain (exponent part), Q0 */
+ Word16 *en_frac, /* o: optimum codebook gain (fraction part), Q15 */
+ Flag *pOverflow
+)
+{
+ Word32 s; /* Intermediate energy accumulator */
+ Word16 i; /* index used in all loops */
+ Word16 exp;
+
+ /* Compute scalar product <xn[], xn[]> */
+ s = 0;
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ s = amrnb_fxp_mac_16_by_16bb((Word32) xn[i], (Word32) xn[i], s);
+ }
+
+ if (s < 0)
+ {
+ *pOverflow = 1;
+ s = MAX_32;
+ }
+
+ /* s = SUM 2*xn(i) * xn(i) = <xn xn> * 2 */
+ exp = norm_l(s);
+ *en_frac = (Word16)(L_shl(s, exp, pOverflow) >> 16);
+ *en_exp = (16 - exp);
+
+ return;
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: calc_en.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : calc_en.h
+ Purpose : calculation of energy coefficients for quantizers
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _CALC_EN_H_
+#define _CALC_EN_H_
+#define calc_en_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ /*
+ * FUNCTION: calc_unfilt_energies
+ *
+ * PURPOSE: calculation of several energy coefficients for unfiltered
+ * excitation signals and the LTP coding gain
+ *
+ * frac_en[0]*2^exp_en[0] = <res res> // LP residual energy
+ * frac_en[1]*2^exp_en[1] = <exc exc> // LTP residual energy
+ * frac_en[2]*2^exp_en[2] = <exc code> // LTP/CB innovation dot product
+ * frac_en[3]*2^exp_en[3] = <lres lres> // LTP residual energy
+ * // (lres = res - gain_pit*exc)
+ * ltpg = log2(LP_res_en / LTP_res_en)
+ */
+ void
+ calc_unfilt_energies(
+ Word16 res[], /* i : LP residual, Q0 */
+ Word16 exc[], /* i : LTP excitation (unfiltered), Q0 */
+ Word16 code[], /* i : CB innovation (unfiltered), Q13 */
+ Word16 gain_pit, /* i : pitch gain, Q14 */
+ Word16 L_subfr, /* i : Subframe length */
+
+ Word16 frac_en[], /* o : energy coefficients (3), fraction part, Q15 */
+ Word16 exp_en[], /* o : energy coefficients (3), exponent part, Q0 */
+ Word16 *ltpg, /* o : LTP coding gain (log2()), Q13 */
+ Flag *pOverflow
+ );
+
+ /*
+ * FUNCTION: calc_filt_energies
+ *
+ * PURPOSE: calculation of several energy coefficients for filtered
+ * excitation signals
+ *
+ * Compute coefficients need for the quantization and the optimum
+ * codebook gain gcu (for MR475 only).
+ *
+ * coeff[0] = y1 y1
+ * coeff[1] = -2 xn y1
+ * coeff[2] = y2 y2
+ * coeff[3] = -2 xn y2
+ * coeff[4] = 2 y1 y2
+ *
+ *
+ * gcu = <xn2, y2> / <y2, y2> (0 if <xn2, y2> <= 0)
+ *
+ * Product <y1 y1> and <xn y1> have been computed in G_pitch() and
+ * are in vector g_coeff[].
+ */
+ void
+ calc_filt_energies(
+ enum Mode mode, /* i : coder mode */
+ Word16 xn[], /* i : LTP target vector, Q0 */
+ Word16 xn2[], /* i : CB target vector, Q0 */
+ Word16 y1[], /* i : Adaptive codebook, Q0 */
+ Word16 Y2[], /* i : Filtered innovative vector, Q12 */
+ Word16 g_coeff[], /* i : Correlations <xn y1> <y1 y1> */
+ /* computed in G_pitch() */
+
+ Word16 frac_coeff[],/* o : energy coefficients (5), fraction part, Q15 */
+ Word16 exp_coeff[], /* o : energy coefficients (5), exponent part, Q0 */
+ Word16 *cod_gain_frac,/* o: optimum codebook gain (fraction part), Q15 */
+ Word16 *cod_gain_exp, /* o: optimum codebook gain (exponent part), Q0 */
+ Flag *pOverflow
+ );
+
+ /*
+ * FUNCTION: calc_target_energy
+ *
+ * PURPOSE: calculation of target energy
+ *
+ * en = <xn, xn>
+ */
+ void
+ calc_target_energy(
+ Word16 xn[], /* i: LTP target vector, Q0 */
+ Word16 *en_exp, /* o: optimum codebook gain (exponent part), Q0 */
+ Word16 *en_frac, /* o: optimum codebook gain (fraction part), Q15 */
+ Flag *pOverflow
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CALC_EN_H_ */
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: cbsearch.cpp
+ Functions: D_plsf_3
+
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ x[] -- array of type Word16 -- target vector, Q0
+ h[] -- array of type Word16 -- impulse response of weighted synthesis
+ filter h[-L_subfr..-1] must be set to
+ zero. Q12
+ T0 -- Word16 -- Pitch lag
+ pitch_sharp -- Word16 -- Last quantized pitch gain, Q14
+ gain_pit -- Word16 gain_pit -- Pitch gain, Q14
+ res2[] -- array of type Word16 -- Long term prediction residual, Q0
+ mode -- enum Mode -- coder mode
+ subNr -- Word16 -- subframe number
+
+ Outputs:
+ code[] -- array of type Word16 -- Innovative codebook, Q13
+ y[] -- array of type Word16 -- filtered fixed codebook excitation
+ Q12
+
+ anap -- Double pointer to Word16 -- Signs of the pulses
+
+
+ pOverflow -- pointer to Flag -- Flag set when overflow occurs
+
+ Returns:
+ Zero
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Inovative codebook search (find index and gain)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cbsearch.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "cbsearch.h"
+
+#include "typedef.h"
+#include "c2_9pf.h"
+#include "c2_11pf.h"
+#include "c3_14pf.h"
+#include "c4_17pf.h"
+#include "c8_31pf.h"
+#include "c1035pf.h"
+#include "mode.h"
+#include "basic_op.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void cbsearch(Word16 x[], /* i : target vector, Q0 */
+ Word16 h[], /* i : impulse response of weighted synthesis*/
+ /* filter h[-L_subfr..-1] must be set to */
+ /* zero. Q12 */
+ Word16 T0, /* i : Pitch lag */
+ Word16 pitch_sharp,/* i : Last quantized pitch gain, Q14 */
+ Word16 gain_pit, /* i : Pitch gain, Q14 */
+ Word16 res2[], /* i : Long term prediction residual, Q0 */
+ Word16 code[], /* o : Innovative codebook, Q13 */
+ Word16 y[], /* o : filtered fixed codebook excitation */
+ /* Q12 */
+ Word16 **anap, /* o : Signs of the pulses */
+ enum Mode mode, /* i : coder mode */
+ Word16 subNr, /* i : subframe number */
+ CommonAmrTbls* common_amr_tbls, /* ptr to struct of tables */
+ Flag *pOverflow) /* o : Flag set when overflow occurs */
+{
+ Word16 index;
+ Word16 i;
+ Word16 temp;
+ Word16 pit_sharpTmp;
+
+ /* For MR74, the pre and post CB pitch sharpening is included in the
+ * codebook search routine, while for MR122 is it not.
+ */
+
+ if ((mode == MR475) || (mode == MR515))
+ {
+ /* MR475, MR515 */
+ *(*anap)++ =
+ code_2i40_9bits(
+ subNr,
+ x,
+ h,
+ T0,
+ pitch_sharp,
+ code,
+ y,
+ &index,
+ common_amr_tbls->startPos_ptr,
+ pOverflow);
+
+ *(*anap)++ = index; /* sign index */
+ }
+ else if (mode == MR59)
+ { /* MR59 */
+ *(*anap)++ =
+ code_2i40_11bits(
+ x,
+ h,
+ T0,
+ pitch_sharp,
+ code,
+ y,
+ &index,
+ pOverflow);
+
+ *(*anap)++ = index; /* sign index */
+ }
+ else if (mode == MR67)
+ { /* MR67 */
+ *(*anap)++ =
+ code_3i40_14bits(
+ x,
+ h,
+ T0,
+ pitch_sharp,
+ code,
+ y,
+ &index,
+ pOverflow);
+
+ *(*anap)++ = index; /* sign index */
+ }
+ else if ((mode == MR74) || (mode == MR795))
+ { /* MR74, MR795 */
+ *(*anap)++ =
+ code_4i40_17bits(
+ x,
+ h,
+ T0,
+ pitch_sharp,
+ code,
+ y,
+ &index,
+ common_amr_tbls->gray_ptr,
+ pOverflow);
+
+ *(*anap)++ = index; /* sign index */
+ }
+ else if (mode == MR102)
+ { /* MR102 */
+ /*-------------------------------------------------------------*
+ * - include pitch contribution into impulse resp. h1[] *
+ *-------------------------------------------------------------*/
+ /* pit_sharpTmp = pit_sharp; */
+ /* if (pit_sharpTmp > 1.0) pit_sharpTmp = 1.0; */
+
+ pit_sharpTmp =
+ shl(
+ pitch_sharp,
+ 1,
+ pOverflow);
+
+ for (i = T0; i < L_SUBFR; i++)
+ {
+ temp =
+ mult(
+ h[i - T0],
+ pit_sharpTmp,
+ pOverflow);
+
+ h[i] =
+ add_16(
+ h[i],
+ temp,
+ pOverflow);
+ }
+
+ /*--------------------------------------------------------------*
+ * - Innovative codebook search (find index and gain) *
+ *--------------------------------------------------------------*/
+ code_8i40_31bits(
+ x,
+ res2,
+ h,
+ code,
+ y,
+ *anap,
+ pOverflow);
+
+ *anap += 7;
+
+ /*-------------------------------------------------------*
+ * - Add the pitch contribution to code[]. *
+ *-------------------------------------------------------*/
+ for (i = T0; i < L_SUBFR; i++)
+ {
+ temp =
+ mult(
+ code[i - T0],
+ pit_sharpTmp,
+ pOverflow);
+
+ code[i] =
+ add_16(
+ code[i],
+ temp,
+ pOverflow);
+ }
+ }
+ else
+ { /* MR122 */
+ /*-------------------------------------------------------------*
+ * - include pitch contribution into impulse resp. h1[] *
+ *-------------------------------------------------------------*/
+
+ /* pit_sharpTmp = gain_pit; */
+ /* if (pit_sharpTmp > 1.0) pit_sharpTmp = 1.0; */
+
+ pit_sharpTmp = shl(gain_pit, 1, pOverflow);
+
+ for (i = T0; i < L_SUBFR; i++)
+ {
+ temp = ((Word32)h[i - T0] * pit_sharpTmp) >> 15;
+ /*
+ mult(
+ h[i - T0],
+ ,
+ pOverflow);
+ */
+ h[i] =
+ add_16(
+ h[i],
+ temp,
+ pOverflow);
+ }
+ /*--------------------------------------------------------------*
+ * - Innovative codebook search (find index and gain) *
+ *--------------------------------------------------------------*/
+
+ code_10i40_35bits(
+ x,
+ res2,
+ h,
+ code,
+ y,
+ *anap,
+ common_amr_tbls->gray_ptr,
+ pOverflow);
+
+ *anap += 10;
+
+ /*-------------------------------------------------------*
+ * - Add the pitch contribution to code[]. *
+ *-------------------------------------------------------*/
+ for (i = T0; i < L_SUBFR; i++)
+ {
+ temp =
+ mult(
+ code[i - T0],
+ pit_sharpTmp,
+ pOverflow);
+
+ code[i] =
+ add_16(
+ code[i],
+ temp,
+ pOverflow);
+ }
+ }
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: cbsearch.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the cbsearch.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef cbsearch_h
+#define cbsearch_h "$Id $"
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void cbsearch(Word16 x[], /* i : target vector, Q0 */
+ Word16 h[], /* i : impulse response of weighted synthesis */
+ /* filter h[-L_subfr..-1] must be set to */
+ /* zero. Q12 */
+ Word16 T0, /* i : Pitch lag */
+ Word16 pitch_sharp, /* i : Last quantized pitch gain, Q14 */
+ Word16 gain_pit,/* i : Pitch gain, Q14 */
+ Word16 res2[], /* i : Long term prediction residual, Q0 */
+ Word16 code[], /* o : Innovative codebook, Q13 */
+ Word16 y[], /* o : filtered fixed codebook excitation, Q12 */
+ Word16 **anap, /* o : Signs of the pulses */
+ enum Mode mode, /* i : coder mode */
+ Word16 subNr, /* i : subframe number */
+ CommonAmrTbls* common_amr_tbls, /* ptr to struct of tables */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CBSEARCH_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: cl_ltp.cpp
+ Funtions: cl_ltp_init
+ cl_ltp_reset
+ cl_ltp_exit
+ cl_ltp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains functions that perform closed-loop fractional pitch
+ search.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "cl_ltp.h"
+#include "basicop_malloc.h"
+#include "cnst.h"
+#include "convolve.h"
+#include "g_pitch.h"
+#include "pred_lt.h"
+#include "pitch_fr.h"
+#include "enc_lag3.h"
+#include "enc_lag6.h"
+#include "q_gain_p.h"
+#include "ton_stab.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cl_ltp_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = Pointer to a pointer to a clLtpState structure
+
+ Outputs:
+ state points to the newly created clLtpState structure.
+
+ Returns:
+ This function returns 0 upon success and -1 upon failure.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Allocates state memory and initializes state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cl_ltp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int cl_ltp_init (clLtpState **state)
+{
+ clLtpState* s;
+
+ if (state == (clLtpState **) NULL){
+ fprintf(stderr, "cl_ltp_init: invalid parameter\n");
+ return -1;
+ }
+ *state = NULL;
+
+ // allocate memory
+ if ((s= (clLtpState *) malloc(sizeof(clLtpState))) == NULL){
+ fprintf(stderr, "cl_ltp_init: can not malloc state structure\n");
+ return -1;
+ }
+
+ // init the sub state
+ if (Pitch_fr_init(&s->pitchSt)) {
+ cl_ltp_exit(&s);
+ return -1;
+ }
+
+ cl_ltp_reset(s);
+
+ *state = s;
+
+ return 0;
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 cl_ltp_init(clLtpState **state)
+{
+ clLtpState* s;
+
+ if (state == (clLtpState **) NULL)
+ {
+ /*fprint(stderr, "cl_ltp_init: invalid parameter\n");*/
+ return(-1);
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (clLtpState *) oscl_malloc(sizeof(clLtpState))) == NULL)
+ {
+ /*fprint(stderr, "cl_ltp_init: can not malloc state structure\n");*/
+ return(-1);
+ }
+
+ /* init the sub state */
+ if (Pitch_fr_init(&s->pitchSt))
+ {
+ cl_ltp_exit(&s);
+ return(-1);
+ }
+
+ cl_ltp_reset(s);
+
+ *state = s;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cl_ltp_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to the clLtpState structure to be reset
+
+ Outputs:
+ The state structure pointed to by clLtpState *state is reset.
+
+ Returns:
+ The function returns int 0 if successful, -1 otherwise.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Initializes state memory to zero.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cl_ltp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+ ------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int cl_ltp_reset (clLtpState *state)
+{
+ if (state == (clLtpState *) NULL){
+ fprintf(stderr, "cl_ltp_reset: invalid parameter\n");
+ return -1;
+ }
+
+ // Reset pitch search states
+ Pitch_fr_reset (state->pitchSt);
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 cl_ltp_reset(clLtpState *state)
+{
+ if (state == (clLtpState *) NULL)
+ {
+ /*fprint(stderr, "cl_ltp_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ /* Reset pitch search states */
+ Pitch_fr_reset(state->pitchSt);
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cl_ltp_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ clLtpState **state = Reference to the state object to be freed.
+
+ Outputs:
+ The memory used by the structure which is pointed to by 'state'
+ is freed.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ The memory used for state memory is freed
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cl_ltp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void cl_ltp_exit (clLtpState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ // dealloc members
+ Pitch_fr_exit(&(*state)->pitchSt);
+
+ // deallocate memory
+ free(*state);
+ *state = NULL;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void cl_ltp_exit(clLtpState **state)
+{
+ if (state == NULL || *state == NULL)
+ {
+ return;
+ }
+
+ /* dealloc members */
+ Pitch_fr_exit(&(*state)->pitchSt);
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cl_ltp
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ clSt = pointer to the clLtpState struct
+ tonSt = pointer to the tonStabState structure
+ mode = codec mode value, of type enum Mode
+ frameOffset = offset to subframe (Word16)
+ T_op = pointer to buffer of open loop pitch lags (Word16)
+ h1 = pointer to impulse response vector (Word16)
+ exc = pointer to excitation vector (Word16)
+ res2 = pointer to long term prediction residual (Word16)
+ xn = pointer to target vector for pitch search (Word16)
+ lsp_flag = LSP resonance flag (Word16)
+
+ Outputs:
+ clSt = pointer to the clLtpState struct
+ tonSt = pointer to the tonStabState structure
+ exc = pointer to excitation vector (Word16)
+ res2 = pointer to long term prediction residual (Word16)
+ xn2 = pointer to target vector for codebook search (Word16)
+ yl = pointer to buffer of filtered adaptive excitation (Word16)
+ T0 = pointer to pitch delay (integer part) (Word16)
+ T0_frac = pointer to pitch delay (fractional part) (Word16)
+ gain_pit = pointer to pitch gain (Word16)
+ g_coeff = pointer to array of correlations between xn, y1, & y2 (Word16)
+ anap = pointer to pointer to analysis parameters (Word16)
+ gp_limit = pointer to the pitch gain limit (Word16)
+ pOverflow = pointer to overflow indicator (Flag)
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs closed-loop fractional pitch search.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cl_ltp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE FOR cl_ltp
+
+int cl_ltp (
+ clLtpState *clSt, // i/o : State struct
+ tonStabState *tonSt, // i/o : State struct
+ enum Mode mode, // i : coder mode
+ Word16 frameOffset, // i : Offset to subframe
+ Word16 T_op[], // i : Open loop pitch lags
+ Word16 *h1, // i : Impulse response vector Q12
+ Word16 *exc, // i/o : Excitation vector Q0
+ Word16 res2[], // i/o : Long term prediction residual Q0
+ Word16 xn[], // i : Target vector for pitch search Q0
+ Word16 lsp_flag, // i : LSP resonance flag
+ Word16 xn2[], // o : Target vector for codebook search Q0
+ Word16 y1[], // o : Filtered adaptive excitation Q0
+ Word16 *T0, // o : Pitch delay (integer part)
+ Word16 *T0_frac, // o : Pitch delay (fractional part)
+ Word16 *gain_pit, // o : Pitch gain Q14
+ Word16 g_coeff[], // o : Correlations between xn, y1, & y2
+ Word16 **anap, // o : Analysis parameters
+ Word16 *gp_limit // o : pitch gain limit
+)
+{
+ Word16 i;
+ Word16 index;
+ Word32 L_temp; // temporarily variable
+ Word16 resu3; // flag for upsample resolution
+ Word16 gpc_flag;
+
+ *----------------------------------------------------------------------*
+ * Closed-loop fractional pitch search *
+ *----------------------------------------------------------------------*
+ *T0 = Pitch_fr(clSt->pitchSt,
+ mode, T_op, exc, xn, h1,
+ L_SUBFR, frameOffset,
+ T0_frac, &resu3, &index);
+
+ *(*anap)++ = index;
+
+ *-----------------------------------------------------------------*
+ * - find unity gain pitch excitation (adapitve codebook entry) *
+ * with fractional interpolation. *
+ * - find filtered pitch exc. y1[]=exc[] convolve with h1[]) *
+ * - compute pitch gain and limit between 0 and 1.2 *
+ * - update target vector for codebook search *
+ * - find LTP residual. *
+ *-----------------------------------------------------------------*
+
+ Pred_lt_3or6(exc, *T0, *T0_frac, L_SUBFR, resu3);
+
+ Convolve(exc, h1, y1, L_SUBFR);
+
+ // gain_pit is Q14 for all modes
+ *gain_pit = G_pitch(mode, xn, y1, g_coeff, L_SUBFR);
+
+
+ // check if the pitch gain should be limit due to resonance in LPC filter
+ gpc_flag = 0;
+ *gp_limit = MAX_16;
+ if ((lsp_flag != 0) &&
+ (sub(*gain_pit, GP_CLIP) > 0))
+ {
+ gpc_flag = check_gp_clipping(tonSt, *gain_pit);
+ }
+
+ // special for the MR475, MR515 mode; limit the gain to 0.85 to
+ // cope with bit errors in the decoder in a better way.
+ if ((sub (mode, MR475) == 0) || (sub (mode, MR515) == 0)) {
+ if ( sub (*gain_pit, 13926) > 0) {
+ *gain_pit = 13926; // 0.85 in Q14
+ }
+
+ if (gpc_flag != 0) {
+ *gp_limit = GP_CLIP;
+ }
+ }
+ else
+ {
+ if (gpc_flag != 0)
+ {
+ *gp_limit = GP_CLIP;
+ *gain_pit = GP_CLIP;
+ }
+ // For MR122, gain_pit is quantized here and not in gainQuant
+ if (sub(mode, MR122)==0)
+ {
+ *(*anap)++ = q_gain_pitch(MR122, *gp_limit, gain_pit,
+ NULL, NULL);
+ }
+ }
+
+ // update target vector und evaluate LTP residual
+ for (i = 0; i < L_SUBFR; i++) {
+ L_temp = L_mult(y1[i], *gain_pit);
+ L_temp = L_shl(L_temp, 1);
+ xn2[i] = sub(xn[i], extract_h(L_temp));
+
+ L_temp = L_mult(exc[i], *gain_pit);
+ L_temp = L_shl(L_temp, 1);
+ res2[i] = sub(res2[i], extract_h(L_temp));
+ }
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void cl_ltp(
+ clLtpState *clSt, /* i/o : State struct */
+ tonStabState *tonSt, /* i/o : State struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 frameOffset, /* i : Offset to subframe */
+ Word16 T_op[], /* i : Open loop pitch lags */
+ Word16 *h1, /* i : Impulse response vector Q12 */
+ Word16 *exc, /* i/o : Excitation vector Q0 */
+ Word16 res2[], /* i/o : Long term prediction residual Q0 */
+ Word16 xn[], /* i : Target vector for pitch search Q0 */
+ Word16 lsp_flag, /* i : LSP resonance flag */
+ Word16 xn2[], /* o : Target vector for codebook search Q0 */
+ Word16 yl[], /* o : Filtered adaptive excitation Q0 */
+ Word16 *T0, /* o : Pitch delay (integer part) */
+ Word16 *T0_frac, /* o : Pitch delay (fractional part) */
+ Word16 *gain_pit, /* o : Pitch gain Q14 */
+ Word16 g_coeff[], /* o : Correlations between xn, y1, & y2 */
+ Word16 **anap, /* o : Analysis parameters */
+ Word16 *gp_limit, /* o : pitch gain limit */
+ const Word16* qua_gain_pitch_ptr, /* i : ptr to read-only table */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ register Word16 i;
+ Word16 index;
+ Word32 L_temp; /* temporarily variable */
+ Word16 resu3; /* flag for upsample resolution */
+ Word16 gpc_flag;
+
+ Word16 temp;
+ Word16 *p_exc;
+ Word16 *p_xn;
+ Word16 *p_xn2;
+ Word16 *p_yl;
+
+ /*----------------------------------------------------------------------*
+ * Closed-loop fractional pitch search *
+ *----------------------------------------------------------------------*/
+ *T0 =
+ Pitch_fr(
+ clSt->pitchSt,
+ mode,
+ T_op,
+ exc,
+ xn,
+ h1,
+ L_SUBFR,
+ frameOffset,
+ T0_frac,
+ &resu3,
+ &index,
+ pOverflow);
+
+ *(*anap)++ = index;
+
+ /*-----------------------------------------------------------------*
+ * - find unity gain pitch excitation (adapitve codebook entry) *
+ * with fractional interpolation. *
+ * - find filtered pitch exc. y1[]=exc[] convolve with h1[]) *
+ * - compute pitch gain and limit between 0 and 1.2 *
+ * - update target vector for codebook search *
+ * - find LTP residual. *
+ *-----------------------------------------------------------------*/
+
+ Pred_lt_3or6(
+ exc,
+ *T0,
+ *T0_frac,
+ L_SUBFR,
+ resu3,
+ pOverflow);
+
+ Convolve(exc, h1, yl, L_SUBFR);
+
+ /* gain_pit is Q14 for all modes */
+ *gain_pit =
+ G_pitch(
+ mode,
+ xn,
+ yl,
+ g_coeff,
+ L_SUBFR,
+ pOverflow);
+
+
+ /* check if the pitch gain should be limit due to resonance in LPC filter */
+ gpc_flag = 0;
+ *gp_limit = MAX_16;
+
+ if ((lsp_flag != 0) && ((Word32)(*gain_pit) > GP_CLIP))
+ {
+ gpc_flag = check_gp_clipping(tonSt, *gain_pit, pOverflow);
+ }
+
+ /* special for the MR475, MR515 mode; limit the gain to 0.85 to */
+ /* cope with bit errors in the decoder in a better way. */
+
+ if ((mode == MR475) || (mode == MR515))
+ {
+ *gain_pit = ((Word32) * gain_pit > 13926) ? 13926 : *gain_pit;
+
+ if (gpc_flag != 0)
+ {
+ *gp_limit = GP_CLIP;
+ }
+ }
+ else
+ {
+ if (gpc_flag != 0)
+ {
+ *gp_limit = GP_CLIP;
+ *gain_pit = GP_CLIP;
+ }
+ /* For MR122, gain_pit is quantized here and not in gainQuant */
+ if (mode == MR122)
+ {
+ *(*anap)++ =
+ q_gain_pitch(
+ MR122,
+ *gp_limit,
+ gain_pit,
+ NULL,
+ NULL,
+ qua_gain_pitch_ptr,
+ pOverflow);
+ }
+ }
+
+
+ p_exc = &exc[0];
+ p_xn = &xn[0];
+ p_xn2 = &xn2[0];
+ p_yl = &yl[0];
+
+ temp = *gain_pit;
+
+ /* update target vector und evaluate LTP residual */
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ L_temp = ((Word32) * (p_yl++) * temp) >> 14;
+ *(p_xn2++) = *(p_xn++) - (Word16)L_temp;
+
+ L_temp = ((Word32) * (p_exc++) * temp) >> 14;
+ res2[i] -= (Word16)L_temp;
+ }
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: cl_ltp.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the cl_ltp.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef cl_ltp_h
+#define cl_ltp_h "$Id $"
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "pitch_fr.h"
+#include "ton_stab.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /* state variable */
+ typedef struct
+ {
+ Pitch_frState *pitchSt;
+ } clLtpState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 cl_ltp_init(clLtpState **st);
+ /* initialize one instance of the pre processing state.
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to cl_ltp in each call.
+ returns 0 on success
+ */
+
+ Word16 cl_ltp_reset(clLtpState *st);
+ /* reset of pre processing state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+ void cl_ltp_exit(clLtpState **st);
+ /* de-initialize pre processing state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ void cl_ltp(
+ clLtpState *clSt, /* i/o : State struct */
+ tonStabState *tonSt, /* i/o : State struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 frameOffset, /* i : Offset to subframe */
+ Word16 T_op[], /* i : Open loop pitch lags */
+ Word16 *h1, /* i : Impulse response vector Q12 */
+ Word16 *exc, /* i/o : Excitation vector Q0 */
+ Word16 res2[], /* i/o : Long term prediction residual Q0 */
+ Word16 xn[], /* i : Target vector for pitch search Q0 */
+ Word16 lsp_flag, /* i : LSP resonance flag */
+ Word16 xn2[], /* o : Target vector for codebook search Q0 */
+ Word16 y1[], /* o : Filtered adaptive excitation Q0 */
+ Word16 *T0, /* o : Pitch delay (integer part) */
+ Word16 *T0_frac, /* o : Pitch delay (fractional part) */
+ Word16 *gain_pit, /* o : Pitch gain Q14 */
+ Word16 g_coeff[], /* o : Correlations between xn, y1, & y2 */
+ Word16 **anap, /* o : Analysis parameters */
+ Word16 *gp_limit, /* o : pitch gain limit */
+ const Word16* qua_gain_pitch_ptr, /* i : ptr to read-only table */
+ Flag *pOverflow /* o : overflow indicator */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CL_LTP_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: cod_amr.cpp
+ Functions: cod_amr_init
+ cod_amr_reset
+ cod_amr_exit
+ cod_amr_first
+ cod_amr
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ These functions comprise the main encoder routine operating on a frame basis.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "cod_amr.h"
+#include "typedef.h"
+#include "cnst.h"
+#include "qua_gain.h"
+#include "lpc.h"
+#include "lsp.h"
+#include "pre_big.h"
+#include "ol_ltp.h"
+#include "p_ol_wgh.h"
+#include "spreproc.h"
+#include "cl_ltp.h"
+#include "pred_lt.h"
+#include "spstproc.h"
+#include "cbsearch.h"
+#include "gain_q.h"
+#include "convolve.h"
+#include "ton_stab.h"
+#include "vad.h"
+#include "dtx_enc.h"
+#include "oscl_mem.h"
+
+#ifdef VAD2
+#include "vad2.h"
+#endif
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/* Spectral expansion factors */
+
+static const Word16 gamma1[M] =
+{
+ 30802, 28954, 27217, 25584, 24049,
+ 22606, 21250, 19975, 18777, 17650
+};
+
+/* gamma1 differs for the 12k2 coder */
+static const Word16 gamma1_12k2[M] =
+{
+ 29491, 26542, 23888, 21499, 19349,
+ 17414, 15672, 14105, 12694, 11425
+};
+
+static const Word16 gamma2[M] =
+{
+ 19661, 11797, 7078, 4247, 2548,
+ 1529, 917, 550, 330, 198
+};
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cod_amr_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a pointer to a structure of type cod_amrState
+
+ Outputs:
+ Structure pointed to by the pointer pointed to by state is
+ initialized to its reset value
+ state points to the allocated memory
+
+ Returns:
+ Returns 0 if memory was successfully initialized,
+ otherwise returns -1.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function allocates memory and initializes state variables.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cod_amr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int cod_amr_init (cod_amrState **state, Flag dtx)
+{
+ cod_amrState* s;
+
+ if (state == (cod_amrState **) NULL){
+ fprintf(stderr, "cod_amr_init: invalid parameter\n");
+ return -1;
+ }
+ *state = NULL;
+
+ // allocate memory
+ if ((s= (cod_amrState *) malloc(sizeof(cod_amrState))) == NULL){
+ fprintf(stderr, "cod_amr_init: can not malloc state structure\n");
+ return -1;
+ }
+
+ s->lpcSt = NULL;
+ s->lspSt = NULL;
+ s->clLtpSt = NULL;
+ s->gainQuantSt = NULL;
+ s->pitchOLWghtSt = NULL;
+ s->tonStabSt = NULL;
+ s->vadSt = NULL;
+ s->dtx_encSt = NULL;
+ s->dtx = dtx;
+
+ // Init sub states
+ if (cl_ltp_init(&s->clLtpSt) ||
+ lsp_init(&s->lspSt) ||
+ gainQuant_init(&s->gainQuantSt) ||
+ p_ol_wgh_init(&s->pitchOLWghtSt) ||
+ ton_stab_init(&s->tonStabSt) ||
+#ifndef VAD2
+ vad1_init(&s->vadSt) ||
+#else
+ vad2_init(&s->vadSt) ||
+#endif
+ dtx_enc_init(&s->dtx_encSt) ||
+ lpc_init(&s->lpcSt)) {
+ cod_amr_exit(&s);
+ return -1;
+ }
+
+ cod_amr_reset(s);
+
+ *state = s;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 cod_amr_init(cod_amrState **state, Flag dtx)
+{
+ cod_amrState* s;
+
+ if (state == (cod_amrState **) NULL)
+ {
+ /* fprint(stderr, "cod_amr_init: invalid parameter\n"); */
+ return(-1);
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (cod_amrState *) oscl_malloc(sizeof(cod_amrState))) == NULL)
+ {
+ /* fprint(stderr, "cod_amr_init:
+ can not malloc state structure\n"); */
+ return(-1);
+ }
+
+ get_const_tbls(&s->common_amr_tbls);
+
+ s->lpcSt = NULL;
+ s->lspSt = NULL;
+ s->clLtpSt = NULL;
+ s->gainQuantSt = NULL;
+ s->pitchOLWghtSt = NULL;
+ s->tonStabSt = NULL;
+ s->vadSt = NULL;
+ s->dtx_encSt = NULL;
+ s->dtx = dtx;
+
+ /* Initialize overflow Flag */
+
+ s->overflow = 0;
+
+
+ /* Init sub states */
+ if (cl_ltp_init(&s->clLtpSt) ||
+ lsp_init(&s->lspSt) ||
+ gainQuant_init(&s->gainQuantSt) ||
+ p_ol_wgh_init(&s->pitchOLWghtSt) ||
+ ton_stab_init(&s->tonStabSt) ||
+#ifndef VAD2
+ vad1_init(&s->vadSt) ||
+#else
+ vad2_init(&s->vadSt) ||
+#endif
+ dtx_enc_init(&s->dtx_encSt, s->common_amr_tbls.lsp_init_data_ptr) ||
+ lpc_init(&s->lpcSt))
+ {
+ cod_amr_exit(&s);
+ return(-1);
+ }
+
+ cod_amr_reset(s);
+
+ *state = s;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cod_amr_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a structure of type cod_amrState
+
+ Outputs:
+ Structure pointed to by state is initialized to initial values.
+
+ Returns:
+ Returns 0 if memory was successfully initialized,
+ otherwise returns -1.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function resets the state memory for cod_amr.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cod_amr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int cod_amr_reset (cod_amrState *st)
+{
+ Word16 i;
+
+ if (st == (cod_amrState *) NULL){
+ fprintf(stderr, "cod_amr_reset: invalid parameter\n");
+ return -1;
+ }
+
+ *-----------------------------------------------------------------------*
+ * Initialize pointers to speech vector. *
+ *-----------------------------------------------------------------------*
+
+ st->new_speech = st->old_speech + L_TOTAL - L_FRAME; // New speech
+
+ st->speech = st->new_speech - L_NEXT; // Present frame
+
+ st->p_window = st->old_speech + L_TOTAL - L_WINDOW; // For LPC window
+ st->p_window_12k2 = st->p_window - L_NEXT; // EFR LPC window: no lookahead
+
+ // Initialize static pointers
+
+ st->wsp = st->old_wsp + PIT_MAX;
+ st->exc = st->old_exc + PIT_MAX + L_INTERPOL;
+ st->zero = st->ai_zero + MP1;
+ st->error = st->mem_err + M;
+ st->h1 = &st->hvec[L_SUBFR];
+
+ // Static vectors to zero
+
+ Set_zero(st->old_speech, L_TOTAL);
+ Set_zero(st->old_exc, PIT_MAX + L_INTERPOL);
+ Set_zero(st->old_wsp, PIT_MAX);
+ Set_zero(st->mem_syn, M);
+ Set_zero(st->mem_w, M);
+ Set_zero(st->mem_w0, M);
+ Set_zero(st->mem_err, M);
+ Set_zero(st->zero, L_SUBFR);
+ Set_zero(st->hvec, L_SUBFR); // set to zero "h1[-L_SUBFR..-1]"
+
+ // OL LTP states
+ for (i = 0; i < 5; i++)
+ {
+ st->old_lags[i] = 40;
+ }
+
+ // Reset lpc states
+ lpc_reset(st->lpcSt);
+
+ // Reset lsp states
+ lsp_reset(st->lspSt);
+
+ // Reset clLtp states
+ cl_ltp_reset(st->clLtpSt);
+
+ gainQuant_reset(st->gainQuantSt);
+
+ p_ol_wgh_reset(st->pitchOLWghtSt);
+
+ ton_stab_reset(st->tonStabSt);
+
+#ifndef VAD2
+ vad1_reset(st->vadSt);
+#else
+ vad2_reset(st->vadSt);
+#endif
+
+ dtx_enc_reset(st->dtx_encSt);
+
+ st->sharp = SHARPMIN;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 cod_amr_reset(cod_amrState *st)
+{
+ Word16 i;
+
+ if (st == (cod_amrState *) NULL)
+ {
+ /* fprint(stderr, "cod_amr_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ /*-----------------------------------------------------------------------*
+ * Initialize pointers to speech vector. *
+ *-----------------------------------------------------------------------*/
+
+ st->new_speech = st->old_speech + L_TOTAL - L_FRAME; /* New speech */
+
+ st->speech = st->new_speech - L_NEXT; /* Present frame */
+
+ st->p_window = st->old_speech + L_TOTAL - L_WINDOW; /* For LPC window */
+ st->p_window_12k2 = st->p_window - L_NEXT; /* EFR LPC window: no lookahead */
+
+ /* Initialize static pointers */
+
+ st->wsp = st->old_wsp + PIT_MAX;
+ st->exc = st->old_exc + PIT_MAX + L_INTERPOL;
+ st->zero = st->ai_zero + MP1;
+ st->error = st->mem_err + M;
+ st->h1 = &st->hvec[L_SUBFR];
+
+ /* Initialize overflow Flag */
+
+ st->overflow = 0;
+
+ /* Static vectors to zero */
+ oscl_memset(st->old_speech, 0, sizeof(Word16)*L_TOTAL);
+ oscl_memset(st->old_exc, 0, sizeof(Word16)*(PIT_MAX + L_INTERPOL));
+ oscl_memset(st->old_wsp, 0, sizeof(Word16)*PIT_MAX);
+ oscl_memset(st->mem_syn, 0, sizeof(Word16)*M);
+ oscl_memset(st->mem_w, 0, sizeof(Word16)*M);
+ oscl_memset(st->mem_w0, 0, sizeof(Word16)*M);
+ oscl_memset(st->mem_err, 0, sizeof(Word16)*M);
+ oscl_memset(st->zero, 0, sizeof(Word16)*L_SUBFR);
+ oscl_memset(st->hvec, 0, sizeof(Word16)*L_SUBFR); /* set to zero "h1[-L_SUBFR..-1]" */
+
+ /* OL LTP states */
+ for (i = 0; i < 5; i++)
+ {
+ st->old_lags[i] = 40;
+ }
+
+ /* Reset lpc states */
+ lpc_reset(st->lpcSt);
+
+ /* Reset lsp states */
+ lsp_reset(st->lspSt);
+
+ /* Reset clLtp states */
+ cl_ltp_reset(st->clLtpSt);
+
+ gainQuant_reset(st->gainQuantSt);
+
+ p_ol_wgh_reset(st->pitchOLWghtSt);
+
+ ton_stab_reset(st->tonStabSt);
+
+#ifndef VAD2
+ vad1_reset(st->vadSt);
+#else
+ vad2_reset(st->vadSt);
+#endif
+
+ dtx_enc_reset(st->dtx_encSt, st->common_amr_tbls.lsp_init_data_ptr);
+
+ st->sharp = SHARPMIN;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cod_amr_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a pointer to a structure of type cod_amrState
+
+ Outputs:
+ state points to a NULL address
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function frees the memory used for state memory.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cod_amr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void cod_amr_exit (cod_amrState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ // dealloc members
+ lpc_exit(&(*state)->lpcSt);
+ lsp_exit(&(*state)->lspSt);
+ gainQuant_exit(&(*state)->gainQuantSt);
+ cl_ltp_exit(&(*state)->clLtpSt);
+ p_ol_wgh_exit(&(*state)->pitchOLWghtSt);
+ ton_stab_exit(&(*state)->tonStabSt);
+#ifndef VAD2
+ vad1_exit(&(*state)->vadSt);
+#else
+ vad2_exit(&(*state)->vadSt);
+#endif
+ dtx_enc_exit(&(*state)->dtx_encSt);
+
+ // deallocate memory
+ free(*state);
+ *state = NULL;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void cod_amr_exit(cod_amrState **state)
+{
+ if (state == NULL || *state == NULL)
+ {
+ return;
+ }
+
+ /* dealloc members */
+ lpc_exit(&(*state)->lpcSt);
+ lsp_exit(&(*state)->lspSt);
+ gainQuant_exit(&(*state)->gainQuantSt);
+ cl_ltp_exit(&(*state)->clLtpSt);
+ p_ol_wgh_exit(&(*state)->pitchOLWghtSt);
+ ton_stab_exit(&(*state)->tonStabSt);
+#ifndef VAD2
+ vad1_exit(&(*state)->vadSt);
+#else
+ vad2_exit(&(*state)->vadSt);
+#endif
+ dtx_enc_exit(&(*state)->dtx_encSt);
+
+ /* deallocate memory */
+ oscl_free(*state); // BX
+ *state = NULL;
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cod_amr_first
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type cod_amrState
+ new_speech = pointer to buffer of length L_FRAME that contains
+ the speech input (Word16)
+
+ Outputs:
+ The structure of type cod_amrState pointed to by st is updated.
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function copes with look-ahead and calls cod_amr.
+ No input argument are passed to this function. However, before
+ calling this function, 40 new speech data should be copied to the
+ vector new_speech[]. This is a global pointer which is declared in
+ this file (it points to the end of speech buffer minus 200).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cod_amr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int cod_amr_first(cod_amrState *st, // i/o : State struct
+ Word16 new_speech[]) // i : speech input (L_FRAME)
+{
+ Copy(new_speech,&st->new_speech[-L_NEXT], L_NEXT);
+ // Copy(new_speech,st->new_speech,L_FRAME);
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 cod_amr_first(cod_amrState *st, /* i/o : State struct */
+ Word16 new_speech[]) /* i : speech input (L_FRAME) */
+{
+
+ oscl_memcpy(&st->new_speech[-L_NEXT], new_speech, L_NEXT*sizeof(Word16));
+
+ /* Copy(new_speech,st->new_speech,L_FRAME); */
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cod_amr
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type cod_amrState
+ mode = AMR mode of type enum Mode
+ new_speech = pointer to buffer of length L_FRAME that contains
+ the speech input of type Word16
+ ana = pointer to the analysis parameters of type Word16
+ usedMode = pointer to the used mode of type enum Mode
+ synth = pointer to a buffer containing the local synthesis speech of
+ type Word16
+
+ Outputs:
+ The structure of type cod_amrState pointed to by st is updated.
+ The analysis parameter buffer pointed to by ana is updated.
+ The value pointed to by usedMode is updated.
+ The local synthesis speech buffer pointed to by synth is updated.
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function is the main encoder routine. It is called every 20 ms speech
+ frame, operating on the newly read 160 speech samples. It performs the
+ principle encoding functions to produce the set of encoded parameters
+ which include the LSP, adaptive codebook, and fixed codebook
+ quantization indices (addresses and gains).
+
+ Before calling this function, 160 new speech data should be copied to the
+ vector new_speech[]. This is a global pointer which is declared in
+ this file (it points to the end of speech buffer minus 160).
+
+ The outputs of the function are:
+ ana[]: vector of analysis parameters.
+ synth[]: Local synthesis speech (for debugging purposes)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cod_amr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int cod_amr(
+ cod_amrState *st, // i/o : State struct
+ enum Mode mode, // i : AMR mode
+ Word16 new_speech[], // i : speech input (L_FRAME)
+ Word16 ana[], // o : Analysis parameters
+ enum Mode *usedMode, // o : used mode
+ Word16 synth[] // o : Local synthesis
+)
+{
+ // LPC coefficients
+ Word16 A_t[(MP1) * 4]; // A(z) unquantized for the 4 subframes
+ Word16 Aq_t[(MP1) * 4]; // A(z) quantized for the 4 subframes
+ Word16 *A, *Aq; // Pointer on A_t and Aq_t
+ Word16 lsp_new[M];
+
+ // Other vectors
+ Word16 xn[L_SUBFR]; // Target vector for pitch search
+ Word16 xn2[L_SUBFR]; // Target vector for codebook search
+ Word16 code[L_SUBFR]; // Fixed codebook excitation
+ Word16 y1[L_SUBFR]; // Filtered adaptive excitation
+ Word16 y2[L_SUBFR]; // Filtered fixed codebook excitation
+ Word16 gCoeff[6]; // Correlations between xn, y1, & y2:
+ Word16 res[L_SUBFR]; // Short term (LPC) prediction residual
+ Word16 res2[L_SUBFR]; // Long term (LTP) prediction residual
+
+ // Vector and scalars needed for the MR475
+ Word16 xn_sf0[L_SUBFR]; // Target vector for pitch search
+ Word16 y2_sf0[L_SUBFR]; // Filtered codebook innovation
+ Word16 code_sf0[L_SUBFR]; // Fixed codebook excitation
+ Word16 h1_sf0[L_SUBFR]; // The impulse response of sf0
+ Word16 mem_syn_save[M]; // Filter memory
+ Word16 mem_w0_save[M]; // Filter memory
+ Word16 mem_err_save[M]; // Filter memory
+ Word16 sharp_save; // Sharpening
+ Word16 evenSubfr; // Even subframe indicator
+ Word16 T0_sf0 = 0; // Integer pitch lag of sf0
+ Word16 T0_frac_sf0 = 0; // Fractional pitch lag of sf0
+ Word16 i_subfr_sf0 = 0; // Position in exc[] for sf0
+ Word16 gain_pit_sf0; // Quantized pitch gain for sf0
+ Word16 gain_code_sf0; // Quantized codebook gain for sf0
+
+ // Scalars
+ Word16 i_subfr, subfrNr;
+ Word16 T_op[L_FRAME/L_FRAME_BY2];
+ Word16 T0, T0_frac;
+ Word16 gain_pit, gain_code;
+
+ // Flags
+ Word16 lsp_flag = 0; // indicates resonance in LPC filter
+ Word16 gp_limit; // pitch gain limit value
+ Word16 vad_flag; // VAD decision flag
+ Word16 compute_sid_flag; // SID analysis flag
+
+ Copy(new_speech, st->new_speech, L_FRAME);
+
+ *usedMode = mode;
+
+ // DTX processing
+ if (st->dtx)
+ { // no test() call since this if is only in simulation env
+ // Find VAD decision
+
+#ifdef VAD2
+ vad_flag = vad2 (st->new_speech, st->vadSt);
+ vad_flag = vad2 (st->new_speech+80, st->vadSt) || vad_flag;
+#else
+ vad_flag = vad1(st->vadSt, st->new_speech);
+#endif
+
+ // NB! usedMode may change here
+ compute_sid_flag = tx_dtx_handler(st->dtx_encSt,
+ vad_flag,
+ usedMode);
+ }
+ else
+ {
+ compute_sid_flag = 0;
+ }
+
+ *------------------------------------------------------------------------*
+ * - Perform LPC analysis: *
+ * * autocorrelation + lag windowing *
+ * * Levinson-durbin algorithm to find a[] *
+ * * convert a[] to lsp[] *
+ * * quantize and code the LSPs *
+ * * find the interpolated LSPs and convert to a[] for all *
+ * subframes (both quantized and unquantized) *
+ *------------------------------------------------------------------------*
+
+ // LP analysis
+ lpc(st->lpcSt, mode, st->p_window, st->p_window_12k2, A_t);
+
+
+ // From A(z) to lsp. LSP quantization and interpolation
+ lsp(st->lspSt, mode, *usedMode, A_t, Aq_t, lsp_new, &ana);
+
+
+ // Buffer lsp's and energy
+ dtx_buffer(st->dtx_encSt,
+ lsp_new,
+ st->new_speech);
+
+ // Check if in DTX mode
+ if (sub(*usedMode, MRDTX) == 0)
+ {
+ dtx_enc(st->dtx_encSt,
+ compute_sid_flag,
+ st->lspSt->qSt,
+ st->gainQuantSt->gc_predSt,
+ &ana);
+
+ Set_zero(st->old_exc, PIT_MAX + L_INTERPOL);
+ Set_zero(st->mem_w0, M);
+ Set_zero(st->mem_err, M);
+ Set_zero(st->zero, L_SUBFR);
+ Set_zero(st->hvec, L_SUBFR); // set to zero "h1[-L_SUBFR..-1]"
+ // Reset lsp states
+ lsp_reset(st->lspSt);
+ Copy(lsp_new, st->lspSt->lsp_old, M);
+ Copy(lsp_new, st->lspSt->lsp_old_q, M);
+
+ // Reset clLtp states
+ cl_ltp_reset(st->clLtpSt);
+ st->sharp = SHARPMIN;
+ }
+ else
+ {
+ // check resonance in the filter
+ lsp_flag = check_lsp(st->tonStabSt, st->lspSt->lsp_old);
+ }
+
+ *----------------------------------------------------------------------*
+ * - Find the weighted input speech w_sp[] for the whole speech frame *
+ * - Find the open-loop pitch delay for first 2 subframes *
+ * - Set the range for searching closed-loop pitch in 1st subframe *
+ * - Find the open-loop pitch delay for last 2 subframes *
+ *----------------------------------------------------------------------*
+
+#ifdef VAD2
+ if (st->dtx)
+ { // no test() call since this if is only in simulation env
+ st->vadSt->L_Rmax = 0;
+ st->vadSt->L_R0 = 0;
+ }
+#endif
+ for(subfrNr = 0, i_subfr = 0;
+ subfrNr < L_FRAME/L_FRAME_BY2;
+ subfrNr++, i_subfr += L_FRAME_BY2)
+ {
+ // Pre-processing on 80 samples
+ pre_big(mode, gamma1, gamma1_12k2, gamma2, A_t, i_subfr, st->speech,
+ st->mem_w, st->wsp);
+
+ if ((sub(mode, MR475) != 0) && (sub(mode, MR515) != 0))
+ {
+ // Find open loop pitch lag for two subframes
+ ol_ltp(st->pitchOLWghtSt, st->vadSt, mode, &st->wsp[i_subfr],
+ &T_op[subfrNr], st->old_lags, st->ol_gain_flg, subfrNr,
+ st->dtx);
+ }
+ }
+
+ if ((sub(mode, MR475) == 0) || (sub(mode, MR515) == 0))
+ {
+ // Find open loop pitch lag for ONE FRAME ONLY
+ // search on 160 samples
+
+ ol_ltp(st->pitchOLWghtSt, st->vadSt, mode, &st->wsp[0], &T_op[0],
+ st->old_lags, st->ol_gain_flg, 1, st->dtx);
+ T_op[1] = T_op[0];
+ }
+
+#ifdef VAD2
+ if (st->dtx)
+ { // no test() call since this if is only in simulation env
+ LTP_flag_update(st->vadSt, mode);
+ }
+#endif
+
+#ifndef VAD2
+ // run VAD pitch detection
+ if (st->dtx)
+ { // no test() call since this if is only in simulation env
+ vad_pitch_detection(st->vadSt, T_op);
+ }
+#endif
+
+ if (sub(*usedMode, MRDTX) == 0)
+ {
+ goto the_end;
+ }
+
+ *------------------------------------------------------------------------*
+ * Loop for every subframe in the analysis frame *
+ *------------------------------------------------------------------------*
+ * To find the pitch and innovation parameters. The subframe size is *
+ * L_SUBFR and the loop is repeated L_FRAME/L_SUBFR times. *
+ * - find the weighted LPC coefficients *
+ * - find the LPC residual signal res[] *
+ * - compute the target signal for pitch search *
+ * - compute impulse response of weighted synthesis filter (h1[]) *
+ * - find the closed-loop pitch parameters *
+ * - encode the pitch dealy *
+ * - update the impulse response h1[] by including fixed-gain pitch *
+ * - find target vector for codebook search *
+ * - codebook search *
+ * - encode codebook address *
+ * - VQ of pitch and codebook gains *
+ * - find synthesis speech *
+ * - update states of weighting filter *
+ *------------------------------------------------------------------------*
+
+ A = A_t; // pointer to interpolated LPC parameters
+ Aq = Aq_t; // pointer to interpolated quantized LPC parameters
+
+ evenSubfr = 0;
+ subfrNr = -1;
+ for (i_subfr = 0; i_subfr < L_FRAME; i_subfr += L_SUBFR)
+ {
+ subfrNr = add(subfrNr, 1);
+ evenSubfr = sub(1, evenSubfr);
+
+ // Save states for the MR475 mode
+ if ((evenSubfr != 0) && (sub(*usedMode, MR475) == 0))
+ {
+ Copy(st->mem_syn, mem_syn_save, M);
+ Copy(st->mem_w0, mem_w0_save, M);
+ Copy(st->mem_err, mem_err_save, M);
+ sharp_save = st->sharp;
+ }
+
+ *-----------------------------------------------------------------*
+ * - Preprocessing of subframe *
+ *-----------------------------------------------------------------*
+ if (sub(*usedMode, MR475) != 0)
+ {
+ subframePreProc(*usedMode, gamma1, gamma1_12k2,
+ gamma2, A, Aq, &st->speech[i_subfr],
+ st->mem_err, st->mem_w0, st->zero,
+ st->ai_zero, &st->exc[i_subfr],
+ st->h1, xn, res, st->error);
+ }
+ else
+ { // MR475
+ subframePreProc(*usedMode, gamma1, gamma1_12k2,
+ gamma2, A, Aq, &st->speech[i_subfr],
+ st->mem_err, mem_w0_save, st->zero,
+ st->ai_zero, &st->exc[i_subfr],
+ st->h1, xn, res, st->error);
+
+ // save impulse response (modified in cbsearch)
+ if (evenSubfr != 0)
+ {
+ Copy (st->h1, h1_sf0, L_SUBFR);
+ }
+ }
+
+ // copy the LP residual (res2 is modified in the CL LTP search)
+ Copy (res, res2, L_SUBFR);
+
+
+ *-----------------------------------------------------------------*
+ * - Closed-loop LTP search *
+ *-----------------------------------------------------------------*
+ cl_ltp(st->clLtpSt, st->tonStabSt, *usedMode, i_subfr, T_op, st->h1,
+ &st->exc[i_subfr], res2, xn, lsp_flag, xn2, y1,
+ &T0, &T0_frac, &gain_pit, gCoeff, &ana,
+ &gp_limit);
+
+ // update LTP lag history
+ if ((subfrNr == 0) && (st->ol_gain_flg[0] > 0))
+ {
+ st->old_lags[1] = T0;
+ }
+
+ if ((sub(subfrNr, 3) == 0) && (st->ol_gain_flg[1] > 0))
+ {
+ st->old_lags[0] = T0;
+ }
+
+
+ *-----------------------------------------------------------------*
+ * - Inovative codebook search (find index and gain) *
+ *-----------------------------------------------------------------*
+ cbsearch(xn2, st->h1, T0, st->sharp, gain_pit, res2,
+ code, y2, &ana, *usedMode, subfrNr);
+
+ *------------------------------------------------------*
+ * - Quantization of gains. *
+ *------------------------------------------------------*
+ gainQuant(st->gainQuantSt, *usedMode, res, &st->exc[i_subfr], code,
+ xn, xn2, y1, y2, gCoeff, evenSubfr, gp_limit,
+ &gain_pit_sf0, &gain_code_sf0,
+ &gain_pit, &gain_code, &ana);
+
+ // update gain history
+ update_gp_clipping(st->tonStabSt, gain_pit);
+
+ if (sub(*usedMode, MR475) != 0)
+ {
+ // Subframe Post Porcessing
+ subframePostProc(st->speech, *usedMode, i_subfr, gain_pit,
+ gain_code, Aq, synth, xn, code, y1, y2, st->mem_syn,
+ st->mem_err, st->mem_w0, st->exc, &st->sharp);
+ }
+ else
+ {
+ if (evenSubfr != 0)
+ {
+ i_subfr_sf0 = i_subfr;
+ Copy(xn, xn_sf0, L_SUBFR);
+ Copy(y2, y2_sf0, L_SUBFR);
+ Copy(code, code_sf0, L_SUBFR);
+ T0_sf0 = T0;
+ T0_frac_sf0 = T0_frac;
+
+ // Subframe Post Porcessing
+ subframePostProc(st->speech, *usedMode, i_subfr, gain_pit,
+ gain_code, Aq, synth, xn, code, y1, y2,
+ mem_syn_save, st->mem_err, mem_w0_save,
+ st->exc, &st->sharp);
+ st->sharp = sharp_save;
+ }
+ else
+ {
+ // update both subframes for the MR475
+
+ // Restore states for the MR475 mode
+ Copy(mem_err_save, st->mem_err, M);
+
+ // re-build excitation for sf 0
+ Pred_lt_3or6(&st->exc[i_subfr_sf0], T0_sf0, T0_frac_sf0,
+ L_SUBFR, 1);
+ Convolve(&st->exc[i_subfr_sf0], h1_sf0, y1, L_SUBFR);
+
+ Aq -= MP1;
+ subframePostProc(st->speech, *usedMode, i_subfr_sf0,
+ gain_pit_sf0, gain_code_sf0, Aq,
+ synth, xn_sf0, code_sf0, y1, y2_sf0,
+ st->mem_syn, st->mem_err, st->mem_w0, st->exc,
+ &sharp_save); // overwrites sharp_save
+ Aq += MP1;
+
+ // re-run pre-processing to get xn right (needed by postproc)
+ // (this also reconstructs the unsharpened h1 for sf 1)
+ subframePreProc(*usedMode, gamma1, gamma1_12k2,
+ gamma2, A, Aq, &st->speech[i_subfr],
+ st->mem_err, st->mem_w0, st->zero,
+ st->ai_zero, &st->exc[i_subfr],
+ st->h1, xn, res, st->error);
+
+ // re-build excitation sf 1 (changed if lag < L_SUBFR)
+ Pred_lt_3or6(&st->exc[i_subfr], T0, T0_frac, L_SUBFR, 1);
+ Convolve(&st->exc[i_subfr], st->h1, y1, L_SUBFR);
+
+ subframePostProc(st->speech, *usedMode, i_subfr, gain_pit,
+ gain_code, Aq, synth, xn, code, y1, y2,
+ st->mem_syn, st->mem_err, st->mem_w0,
+ st->exc, &st->sharp);
+ }
+ }
+
+
+ A += MP1; // interpolated LPC parameters for next subframe
+ Aq += MP1;
+ }
+
+ Copy(&st->old_exc[L_FRAME], &st->old_exc[0], PIT_MAX + L_INTERPOL);
+
+the_end:
+
+ *--------------------------------------------------*
+ * Update signal for next frame. *
+ *--------------------------------------------------*
+ Copy(&st->old_wsp[L_FRAME], &st->old_wsp[0], PIT_MAX);
+
+ Copy(&st->old_speech[L_FRAME], &st->old_speech[0], L_TOTAL - L_FRAME);
+
+ return 0;
+}
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 cod_amr(
+ cod_amrState *st, /* i/o : State struct */
+ enum Mode mode, /* i : AMR mode */
+ Word16 new_speech[], /* i : speech input (L_FRAME) */
+ Word16 ana[], /* o : Analysis parameters */
+ enum Mode *usedMode, /* o : used mode */
+ Word16 synth[] /* o : Local synthesis */
+)
+{
+ /* LPC coefficients */
+ Word16 A_t[(MP1) * 4]; /* A(z) unquantized for the 4 subframes */
+ Word16 Aq_t[(MP1) * 4]; /* A(z) quantized for the 4 subframes */
+ Word16 *A, *Aq; /* Pointer on A_t and Aq_t */
+ Word16 lsp_new[M];
+
+ /* Other vectors */
+ Word16 xn[L_SUBFR]; /* Target vector for pitch search */
+ Word16 xn2[L_SUBFR]; /* Target vector for codebook search */
+ Word16 code[L_SUBFR]; /* Fixed codebook excitation */
+ Word16 y1[L_SUBFR]; /* Filtered adaptive excitation */
+ Word16 y2[L_SUBFR]; /* Filtered fixed codebook excitation */
+ Word16 gCoeff[6]; /* Correlations between xn, y1, & y2: */
+ Word16 res[L_SUBFR]; /* Short term (LPC) prediction residual */
+ Word16 res2[L_SUBFR]; /* Long term (LTP) prediction residual */
+
+ /* Vector and scalars needed for the MR475 */
+ Word16 xn_sf0[L_SUBFR]; /* Target vector for pitch search */
+ Word16 y2_sf0[L_SUBFR]; /* Filtered codebook innovation */
+ Word16 code_sf0[L_SUBFR]; /* Fixed codebook excitation */
+ Word16 h1_sf0[L_SUBFR]; /* The impulse response of sf0 */
+ Word16 mem_syn_save[M]; /* Filter memory */
+ Word16 mem_w0_save[M]; /* Filter memory */
+ Word16 mem_err_save[M]; /* Filter memory */
+ Word16 sharp_save; /* Sharpening */
+ Word16 evenSubfr; /* Even subframe indicator */
+ Word16 T0_sf0 = 0; /* Integer pitch lag of sf0 */
+ Word16 T0_frac_sf0 = 0; /* Fractional pitch lag of sf0 */
+ Word16 i_subfr_sf0 = 0; /* Position in exc[] for sf0 */
+ Word16 gain_pit_sf0; /* Quantized pitch gain for sf0 */
+ Word16 gain_code_sf0; /* Quantized codebook gain for sf0 */
+
+ /* Scalars */
+ Word16 i_subfr, subfrNr;
+ Word16 T_op[L_FRAME/L_FRAME_BY2];
+ Word16 T0, T0_frac;
+ Word16 gain_pit, gain_code;
+
+ /* Flags */
+ Word16 lsp_flag = 0; /* indicates resonance in LPC filter */
+ Word16 gp_limit; /* pitch gain limit value */
+ Word16 vad_flag; /* VAD decision flag */
+ Word16 compute_sid_flag; /* SID analysis flag */
+ Flag *pOverflow = &(st->overflow); /* Overflow flag */
+
+
+ oscl_memcpy(st->new_speech, new_speech, L_FRAME*sizeof(Word16));
+
+ *usedMode = mode;
+
+ /* DTX processing */
+ if (st->dtx)
+ {
+ /* Find VAD decision */
+#ifdef VAD2
+ vad_flag = vad2(st->new_speech, st->vadSt, pOverflow);
+ vad_flag = vad2(st->new_speech + 80, st->vadSt, pOverflow) || vad_flag;
+#else
+ vad_flag = vad1(st->vadSt, st->new_speech, pOverflow);
+#endif
+
+ /* NB! usedMode may change here */
+ compute_sid_flag = tx_dtx_handler(st->dtx_encSt,
+ vad_flag,
+ usedMode, pOverflow);
+ }
+ else
+ {
+ compute_sid_flag = 0;
+ }
+
+ /*------------------------------------------------------------------------*
+ * - Perform LPC analysis: *
+ * * autocorrelation + lag windowing *
+ * * Levinson-durbin algorithm to find a[] *
+ * * convert a[] to lsp[] *
+ * * quantize and code the LSPs *
+ * * find the interpolated LSPs and convert to a[] for all *
+ * subframes (both quantized and unquantized) *
+ *------------------------------------------------------------------------*/
+
+ /* LP analysis */
+ lpc(st->lpcSt, mode, st->p_window, st->p_window_12k2, A_t, &(st->common_amr_tbls), pOverflow);
+
+ /* From A(z) to lsp. LSP quantization and interpolation */
+ lsp(st->lspSt, mode, *usedMode, A_t, Aq_t, lsp_new, &ana, pOverflow);
+
+ /* Buffer lsp's and energy */
+ dtx_buffer(st->dtx_encSt,
+ lsp_new,
+ st->new_speech, pOverflow);
+
+ /* Check if in DTX mode */
+
+ if (*usedMode == MRDTX)
+ {
+ dtx_enc(st->dtx_encSt,
+ compute_sid_flag,
+ st->lspSt->qSt,
+ &(st->gainQuantSt->gc_predSt),
+ &ana, pOverflow);
+
+ oscl_memset(st->old_exc, 0, sizeof(Word16)*(PIT_MAX + L_INTERPOL));
+ oscl_memset(st->mem_w0, 0, sizeof(Word16)*M);
+ oscl_memset(st->mem_err, 0, sizeof(Word16)*M);
+ oscl_memset(st->zero, 0, sizeof(Word16)*L_SUBFR);
+ oscl_memset(st->hvec, 0, sizeof(Word16)*L_SUBFR); /* set to zero "h1[-L_SUBFR..-1]" */
+ /* Reset lsp states */
+ lsp_reset(st->lspSt);
+
+ oscl_memcpy(st->lspSt->lsp_old, lsp_new, M*sizeof(Word16));
+ oscl_memcpy(st->lspSt->lsp_old_q, lsp_new, M*sizeof(Word16));
+
+ /* Reset clLtp states */
+ cl_ltp_reset(st->clLtpSt);
+ st->sharp = SHARPMIN;
+ }
+ else
+ {
+ /* check resonance in the filter */
+ lsp_flag = check_lsp(st->tonStabSt, st->lspSt->lsp_old, pOverflow);
+ }
+
+ /*----------------------------------------------------------------------*
+ * - Find the weighted input speech w_sp[] for the whole speech frame *
+ * - Find the open-loop pitch delay for first 2 subframes *
+ * - Set the range for searching closed-loop pitch in 1st subframe *
+ * - Find the open-loop pitch delay for last 2 subframes *
+ *----------------------------------------------------------------------*/
+
+#ifdef VAD2
+ if (st->dtx)
+ {
+ st->vadSt->L_Rmax = 0;
+ st->vadSt->L_R0 = 0;
+ }
+#endif
+
+ for (subfrNr = 0, i_subfr = 0;
+ subfrNr < L_FRAME / L_FRAME_BY2;
+ subfrNr++, i_subfr += L_FRAME_BY2)
+ {
+ /* Pre-processing on 80 samples */
+ pre_big(mode, gamma1, gamma1_12k2, gamma2, A_t, i_subfr, st->speech,
+ st->mem_w, st->wsp, pOverflow);
+
+
+ if ((mode != MR475) && (mode != MR515))
+ {
+ /* Find open loop pitch lag for two subframes */
+ ol_ltp(st->pitchOLWghtSt, st->vadSt, mode, &st->wsp[i_subfr],
+ &T_op[subfrNr], st->old_lags, st->ol_gain_flg, subfrNr,
+ st->dtx, pOverflow);
+ }
+ }
+
+ if ((mode == MR475) || (mode == MR515))
+ {
+ /* Find open loop pitch lag for ONE FRAME ONLY */
+ /* search on 160 samples */
+
+ ol_ltp(st->pitchOLWghtSt, st->vadSt, mode, &st->wsp[0], &T_op[0],
+ st->old_lags, st->ol_gain_flg, 1, st->dtx, pOverflow);
+ T_op[1] = T_op[0];
+ }
+
+#ifdef VAD2
+ if (st->dtx)
+ {
+ LTP_flag_update(st->vadSt, (Word16) mode, pOverflow);
+ }
+#endif
+
+#ifndef VAD2
+ /* run VAD pitch detection */
+ if (st->dtx)
+ {
+ vad_pitch_detection(st->vadSt, T_op, pOverflow);
+ }
+#endif
+
+ if (*usedMode == MRDTX)
+ {
+ goto the_end;
+ }
+
+ /*------------------------------------------------------------------------*
+ * Loop for every subframe in the analysis frame *
+ *------------------------------------------------------------------------*
+ * To find the pitch and innovation parameters. The subframe size is *
+ * L_SUBFR and the loop is repeated L_FRAME/L_SUBFR times. *
+ * - find the weighted LPC coefficients *
+ * - find the LPC residual signal res[] *
+ * - compute the target signal for pitch search *
+ * - compute impulse response of weighted synthesis filter (h1[]) *
+ * - find the closed-loop pitch parameters *
+ * - encode the pitch dealy *
+ * - update the impulse response h1[] by including fixed-gain pitch *
+ * - find target vector for codebook search *
+ * - codebook search *
+ * - encode codebook address *
+ * - VQ of pitch and codebook gains *
+ * - find synthesis speech *
+ * - update states of weighting filter *
+ *------------------------------------------------------------------------*/
+
+ A = A_t; /* pointer to interpolated LPC parameters */
+ Aq = Aq_t; /* pointer to interpolated quantized LPC parameters */
+
+ evenSubfr = 0;
+ subfrNr = -1;
+ for (i_subfr = 0; i_subfr < L_FRAME; i_subfr += L_SUBFR)
+ {
+ subfrNr++;
+ evenSubfr = 1 - evenSubfr;
+
+ /* Save states for the MR475 mode */
+
+ if ((evenSubfr != 0) && (*usedMode == MR475))
+ {
+ oscl_memcpy(mem_syn_save, st->mem_syn, M*sizeof(Word16));
+ oscl_memcpy(mem_w0_save, st->mem_w0, M*sizeof(Word16));
+ oscl_memcpy(mem_err_save, st->mem_err, M*sizeof(Word16));
+
+ sharp_save = st->sharp;
+ }
+
+ /*-----------------------------------------------------------------*
+ * - Preprocessing of subframe *
+ *-----------------------------------------------------------------*/
+
+ if (*usedMode != MR475)
+ {
+ subframePreProc(*usedMode, gamma1, gamma1_12k2,
+ gamma2, A, Aq, &st->speech[i_subfr],
+ st->mem_err, st->mem_w0, st->zero,
+ st->ai_zero, &st->exc[i_subfr],
+ st->h1, xn, res, st->error);
+ }
+ else
+ { /* MR475 */
+ subframePreProc(*usedMode, gamma1, gamma1_12k2,
+ gamma2, A, Aq, &st->speech[i_subfr],
+ st->mem_err, mem_w0_save, st->zero,
+ st->ai_zero, &st->exc[i_subfr],
+ st->h1, xn, res, st->error);
+
+ /* save impulse response (modified in cbsearch) */
+
+ if (evenSubfr != 0)
+ {
+ oscl_memcpy(h1_sf0, st->h1, L_SUBFR*sizeof(Word16));
+
+ }
+ }
+
+ /* copy the LP residual (res2 is modified in the CL LTP search) */
+ oscl_memcpy(res2, res, L_SUBFR*sizeof(Word16));
+
+ /*-----------------------------------------------------------------*
+ * - Closed-loop LTP search *
+ *-----------------------------------------------------------------*/
+ cl_ltp(st->clLtpSt, st->tonStabSt, *usedMode, i_subfr, T_op, st->h1,
+ &st->exc[i_subfr], res2, xn, lsp_flag, xn2, y1,
+ &T0, &T0_frac, &gain_pit, gCoeff, &ana,
+ &gp_limit, st->common_amr_tbls.qua_gain_pitch_ptr, pOverflow);
+
+ /* update LTP lag history */
+
+ if ((subfrNr == 0) && (st->ol_gain_flg[0] > 0))
+ {
+ st->old_lags[1] = T0;
+ }
+
+
+ if ((subfrNr == 3) && (st->ol_gain_flg[1] > 0))
+ {
+ st->old_lags[0] = T0;
+ }
+
+ /*-----------------------------------------------------------------*
+ * - Inovative codebook search (find index and gain) *
+ *-----------------------------------------------------------------*/
+ cbsearch(xn2, st->h1, T0, st->sharp, gain_pit, res2,
+ code, y2, &ana, *usedMode, subfrNr, &(st->common_amr_tbls), pOverflow);
+
+ /*------------------------------------------------------*
+ * - Quantization of gains. *
+ *------------------------------------------------------*/
+ gainQuant(st->gainQuantSt, *usedMode, res, &st->exc[i_subfr], code,
+ xn, xn2, y1, y2, gCoeff, evenSubfr, gp_limit,
+ &gain_pit_sf0, &gain_code_sf0,
+ &gain_pit, &gain_code, &ana, &(st->common_amr_tbls), pOverflow);
+
+ /* update gain history */
+ update_gp_clipping(st->tonStabSt, gain_pit, pOverflow);
+
+
+ if (*usedMode != MR475)
+ {
+ /* Subframe Post Porcessing */
+ subframePostProc(st->speech, *usedMode, i_subfr, gain_pit,
+ gain_code, Aq, synth, xn, code, y1, y2, st->mem_syn,
+ st->mem_err, st->mem_w0, st->exc, &st->sharp, pOverflow);
+ }
+ else
+ {
+
+ if (evenSubfr != 0)
+ {
+ i_subfr_sf0 = i_subfr;
+
+ oscl_memcpy(xn_sf0, xn, L_SUBFR*sizeof(Word16));
+ oscl_memcpy(y2_sf0, y2, L_SUBFR*sizeof(Word16));
+ oscl_memcpy(code_sf0, code, L_SUBFR*sizeof(Word16));
+
+ T0_sf0 = T0;
+ T0_frac_sf0 = T0_frac;
+
+ /* Subframe Post Porcessing */
+ subframePostProc(st->speech, *usedMode, i_subfr, gain_pit,
+ gain_code, Aq, synth, xn, code, y1, y2,
+ mem_syn_save, st->mem_err, mem_w0_save,
+ st->exc, &st->sharp, pOverflow);
+ st->sharp = sharp_save;
+ }
+ else
+ {
+ /* update both subframes for the MR475 */
+
+ /* Restore states for the MR475 mode */
+ oscl_memcpy(st->mem_err, mem_err_save, M*sizeof(Word16));
+
+
+ /* re-build excitation for sf 0 */
+ Pred_lt_3or6(&st->exc[i_subfr_sf0], T0_sf0, T0_frac_sf0,
+ L_SUBFR, 1, pOverflow);
+ Convolve(&st->exc[i_subfr_sf0], h1_sf0, y1, L_SUBFR);
+
+ Aq -= MP1;
+ subframePostProc(st->speech, *usedMode, i_subfr_sf0,
+ gain_pit_sf0, gain_code_sf0, Aq,
+ synth, xn_sf0, code_sf0, y1, y2_sf0,
+ st->mem_syn, st->mem_err, st->mem_w0, st->exc,
+ &sharp_save, pOverflow); /* overwrites sharp_save */
+ Aq += MP1;
+
+ /* re-run pre-processing to get xn right (needed by postproc) */
+ /* (this also reconstructs the unsharpened h1 for sf 1) */
+ subframePreProc(*usedMode, gamma1, gamma1_12k2,
+ gamma2, A, Aq, &st->speech[i_subfr],
+ st->mem_err, st->mem_w0, st->zero,
+ st->ai_zero, &st->exc[i_subfr],
+ st->h1, xn, res, st->error);
+
+ /* re-build excitation sf 1 (changed if lag < L_SUBFR) */
+ Pred_lt_3or6(&st->exc[i_subfr], T0, T0_frac, L_SUBFR, 1, pOverflow);
+ Convolve(&st->exc[i_subfr], st->h1, y1, L_SUBFR);
+
+ subframePostProc(st->speech, *usedMode, i_subfr, gain_pit,
+ gain_code, Aq, synth, xn, code, y1, y2,
+ st->mem_syn, st->mem_err, st->mem_w0,
+ st->exc, &st->sharp, pOverflow);
+ }
+ }
+
+ A += MP1; /* interpolated LPC parameters for next subframe */
+ Aq += MP1;
+ }
+
+ oscl_memcpy(&st->old_exc[0], &st->old_exc[L_FRAME], (PIT_MAX + L_INTERPOL)*sizeof(Word16));
+
+the_end:
+
+ /*--------------------------------------------------*
+ * Update signal for next frame. *
+ *--------------------------------------------------*/
+
+ oscl_memcpy(&st->old_wsp[0], &st->old_wsp[L_FRAME], PIT_MAX*sizeof(Word16));
+ oscl_memcpy(&st->old_speech[0], &st->old_speech[L_FRAME], (L_TOTAL - L_FRAME)*sizeof(Word16));
+
+ return(0);
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: cod_amr.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : cod_amr.h
+ Purpose : Main encoder routine operating on a frame basis.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef cod_amr_h
+#define cod_amr_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "mode.h"
+#include "lpc.h"
+#include "lsp.h"
+#include "cl_ltp.h"
+#include "gain_q.h"
+#include "p_ol_wgh.h"
+#include "ton_stab.h"
+#include "vad.h"
+#include "dtx_enc.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ /*-----------------------------------------------------------*
+ * Coder constant parameters (defined in "cnst.h") *
+ *-----------------------------------------------------------*
+ * L_WINDOW : LPC analysis window size. *
+ * L_NEXT : Samples of next frame needed for autocor. *
+ * L_FRAME : Frame size. *
+ * L_FRAME_BY2 : Half the frame size. *
+ * L_SUBFR : Sub-frame size. *
+ * M : LPC order. *
+ * MP1 : LPC order+1 *
+ * L_TOTAL7k4 : Total size of speech buffer. *
+ * PIT_MIN7k4 : Minimum pitch lag. *
+ * PIT_MAX : Maximum pitch lag. *
+ * L_INTERPOL : Length of filter for interpolation *
+ *-----------------------------------------------------------*/
+ typedef struct
+ {
+ /* Speech vector */
+ Word16 old_speech[L_TOTAL];
+ Word16 *speech, *p_window, *p_window_12k2;
+ Word16 *new_speech; /* Global variable */
+
+ /* Weight speech vector */
+ Word16 old_wsp[L_FRAME + PIT_MAX];
+ Word16 *wsp;
+
+ /* OL LTP states */
+ Word16 old_lags[5];
+ Word16 ol_gain_flg[2];
+
+ /* Excitation vector */
+ Word16 old_exc[L_FRAME + PIT_MAX + L_INTERPOL];
+ Word16 *exc;
+
+ /* Zero vector */
+ Word16 ai_zero[L_SUBFR + MP1];
+ Word16 *zero;
+
+ /* Impulse response vector */
+ Word16 *h1;
+ Word16 hvec[L_SUBFR * 2];
+
+ /* Substates */
+ lpcState *lpcSt;
+ lspState *lspSt;
+ clLtpState *clLtpSt;
+ gainQuantState *gainQuantSt;
+ pitchOLWghtState *pitchOLWghtSt;
+ tonStabState *tonStabSt;
+ vadState *vadSt;
+ Flag dtx;
+ dtx_encState *dtx_encSt;
+
+ /* Filter's memory */
+ Word16 mem_syn[M], mem_w0[M], mem_w[M];
+ Word16 mem_err[M + L_SUBFR], *error;
+
+ Word16 sharp;
+
+ /* tables from amr common lib */
+ CommonAmrTbls common_amr_tbls;
+
+ /* Overflow flag */
+ Flag overflow;
+
+ } cod_amrState;
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ /*
+ **************************************************************************
+ *
+ * Function : cod_amr_init
+ * Purpose : Allocates memory and initializes state variables
+ * Description : Stores pointer to filter status struct in *st. This
+ * pointer has to be passed to cod_amr in each call.
+ * - initilize pointers to speech buffer
+ * - initialize static pointers
+ * - set static vectors to zero
+ * Returns : 0 on success
+ *
+ **************************************************************************
+ */
+ Word16 cod_amr_init(cod_amrState **st, Flag dtx);
+
+ /*
+ **************************************************************************
+ *
+ * Function : cod_amr_reset
+ * Purpose : Resets state memory
+ * Returns : 0 on success
+ *
+ **************************************************************************
+ */
+ Word16 cod_amr_reset(cod_amrState *st);
+
+ /*
+ **************************************************************************
+ *
+ * Function : cod_amr_exit
+ * Purpose : The memory used for state memory is freed
+ * Description : Stores NULL in *st
+ *
+ **************************************************************************
+ */
+ void cod_amr_exit(cod_amrState **st);
+
+ /***************************************************************************
+ * FUNCTION: cod_amr_first
+ *
+ * PURPOSE: Copes with look-ahead.
+ *
+ * INPUTS:
+ * No input argument are passed to this function. However, before
+ * calling this function, 40 new speech data should be copied to the
+ * vector new_speech[]. This is a global pointer which is declared in
+ * this file (it points to the end of speech buffer minus 200).
+ *
+ ***************************************************************************/
+
+ Word16 cod_amr_first(cod_amrState *st, /* i/o : State struct */
+ Word16 new_speech[] /* i : speech input (L_FRAME) */
+ );
+
+ /***************************************************************************
+ * FUNCTION: cod_amr
+ *
+ * PURPOSE: Main encoder routine.
+ *
+ * DESCRIPTION: This function is called every 20 ms speech frame,
+ * operating on the newly read 160 speech samples. It performs the
+ * principle encoding functions to produce the set of encoded parameters
+ * which include the LSP, adaptive codebook, and fixed codebook
+ * quantization indices (addresses and gains).
+ *
+ * INPUTS:
+ * No input argument are passed to this function. However, before
+ * calling this function, 160 new speech data should be copied to the
+ * vector new_speech[]. This is a global pointer which is declared in
+ * this file (it points to the end of speech buffer minus 160).
+ *
+ * OUTPUTS:
+ *
+ * ana[]: vector of analysis parameters.
+ * synth[]: Local synthesis speech (for debugging purposes)
+ *
+ ***************************************************************************/
+
+ Word16 cod_amr(cod_amrState *st, /* i/o : State struct */
+ enum Mode mode, /* i : AMR mode */
+ Word16 new_speech[], /* i : speech input (L_FRAME) */
+ Word16 ana[], /* o : Analysis parameters */
+ enum Mode *usedMode, /* o : used mode */
+ Word16 synth[] /* o : Local synthesis */
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _cod_amr_h_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: convolve.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "convolve.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Convolve
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ x = pointer to input vector of L elements of type Word16
+ h = pointer to the filter's impulse response vector of L elements
+ of type Word16
+ y = pointer to the output vector of L elements of type Word16 used for
+ storing the convolution of x and h;
+ L = Length of the convolution; type definition is Word16
+
+ Outputs:
+ y buffer contains the new convolution output
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Perform the convolution between two vectors x[] and h[] and write the result
+ in the vector y[]. All vectors are of length L and only the first L samples
+ of the convolution are computed.
+
+ The convolution is given by:
+
+ y[n] = sum_{i=0}^{n} x[i] h[n-i], n=0,...,L-1
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ convolve.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Convolve (
+ Word16 x[], // (i) : input vector
+ Word16 h[], // (i) : impulse response
+ Word16 y[], // (o) : output vector
+ Word16 L // (i) : vector size
+)
+{
+ Word16 i, n;
+ Word32 s;
+
+ for (n = 0; n < L; n++)
+ {
+ s = 0; move32 ();
+ for (i = 0; i <= n; i++)
+ {
+ s = L_mac (s, x[i], h[n - i]);
+ }
+ s = L_shl (s, 3);
+ y[n] = extract_h (s); move16 ();
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Convolve(
+ Word16 x[], /* (i) : input vector */
+ Word16 h[], /* (i) : impulse response */
+ Word16 y[], /* (o) : output vector */
+ Word16 L /* (i) : vector size */
+)
+{
+ register Word16 i, n;
+ Word32 s1, s2;
+
+
+ for (n = 1; n < L; n = n + 2)
+ {
+
+ h = h + n;
+
+ s2 = ((Word32) * (x)) * *(h--);
+ s1 = ((Word32) * (x++)) * *(h);
+
+ for (i = (n - 1) >> 1; i != 0; i--)
+ {
+ s2 = amrnb_fxp_mac_16_by_16bb((Word32) * (x), (Word32) * (h--), s2);
+ s1 = amrnb_fxp_mac_16_by_16bb((Word32) * (x++), (Word32) * (h), s1);
+ s2 = amrnb_fxp_mac_16_by_16bb((Word32) * (x), (Word32) * (h--), s2);
+ s1 = amrnb_fxp_mac_16_by_16bb((Word32) * (x++), (Word32) * (h), s1);
+ }
+
+ s2 = amrnb_fxp_mac_16_by_16bb((Word32) * (x), (Word32) * (h), s2);
+
+ *(y++) = (Word16)(s1 >> 12);
+ *(y++) = (Word16)(s2 >> 12);
+
+ x = x - n;
+
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : convolve.h
+* Purpose : Perform the convolution between two vectors x[]
+* : and h[] and write the result in the vector y[].
+* : All vectors are of length L and only the first
+* : L samples of the convolution are computed.
+*
+********************************************************************************
+*/
+#ifndef convolve_h
+#define convolve_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * DEFINITION OF DATA TYPES
+ ********************************************************************************
+ */
+
+ /*
+ ********************************************************************************
+ * DECLARATION OF PROTOTYPES
+ ********************************************************************************
+ */
+ void Convolve(
+ Word16 x[], /* (i) : input vector */
+ Word16 h[], /* (i) : impulse response */
+ Word16 y[], /* (o) : output vector */
+ Word16 L /* (i) : vector size */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: cor_h.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "cnst.h"
+#include "cor_h.h"
+#include "basicop_malloc.h"
+#include "inv_sqrt.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cor_h
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ h = vector containing the impulse response of the weighted synthesis
+ filter; vector contents are of type Word16; vector length is
+ 2 * L_SUBFR
+ sign = vector containing the sign information for the correlation
+ values; vector contents are of type Word16; vector length is
+ L_CODE
+ rr = autocorrelation matrix; matrix contents are of type Word16;
+ matrix dimension is L_CODE by L_CODE
+
+ Outputs:
+ rr contents are the newly calculated autocorrelation values
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes correlations of the impulse response (h) needed for
+ the codebook search, and includes the sign information into the correlations.
+
+ The correlations are given by:
+ rr[i][j] = sum_{n=i}^{L-1} h[n-i] h[n-j]; i>=j; i,j=0,...,L-1
+
+ The sign information is included by:
+ rr[i][j] = rr[i][j]*sign[i]*sign[j]
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cor_h.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void cor_h (
+ Word16 h[], // (i) : impulse response of weighted synthesis
+ filter
+ Word16 sign[], // (i) : sign of d[n]
+ Word16 rr[][L_CODE] // (o) : matrix of autocorrelation
+)
+{
+ Word16 i, j, k, dec, h2[L_CODE];
+ Word32 s;
+
+ // Scaling for maximum precision
+
+ s = 2;
+ for (i = 0; i < L_CODE; i++)
+ s = L_mac (s, h[i], h[i]);
+
+ j = sub (extract_h (s), 32767);
+ if (j == 0)
+ {
+ for (i = 0; i < L_CODE; i++)
+ {
+ h2[i] = shr (h[i], 1);
+ }
+ }
+ else
+ {
+ s = L_shr (s, 1);
+ k = extract_h (L_shl (Inv_sqrt (s), 7));
+ k = mult (k, 32440); // k = 0.99*k
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ h2[i] = pv_round (L_shl (L_mult (h[i], k), 9));
+ }
+ }
+
+ // build matrix rr[]
+ s = 0;
+ i = L_CODE - 1;
+ for (k = 0; k < L_CODE; k++, i--)
+ {
+ s = L_mac (s, h2[k], h2[k]);
+ rr[i][i] = pv_round (s);
+ }
+
+ for (dec = 1; dec < L_CODE; dec++)
+ {
+ s = 0;
+ j = L_CODE - 1;
+ i = sub (j, dec);
+ for (k = 0; k < (L_CODE - dec); k++, i--, j--)
+ {
+ s = L_mac (s, h2[k], h2[k + dec]);
+ rr[j][i] = mult (pv_round (s), mult (sign[i], sign[j]));
+ rr[i][j] = rr[j][i];
+ }
+ }
+}
+
+---------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void cor_h(
+ Word16 h[], /* (i) : impulse response of weighted synthesis
+ filter */
+ Word16 sign[], /* (i) : sign of d[n] */
+ Word16 rr[][L_CODE], /* (o) : matrix of autocorrelation */
+ Flag *pOverflow
+)
+{
+ register Word16 i;
+ register Word16 dec;
+
+ Word16 h2[L_CODE];
+ Word32 s;
+ Word32 s2;
+ Word16 tmp1;
+ Word16 tmp2;
+ Word16 tmp11;
+ Word16 tmp22;
+
+ Word16 *p_h;
+ Word16 *p_h2;
+ Word16 *rr1;
+ Word16 *rr2;
+ Word16 *rr3;
+ Word16 *p_rr_ref1;
+ Word16 *p_sign1;
+ Word16 *p_sign2;
+
+ /* Scaling for maximum precision */
+
+ /* Initialize accumulator to 1 since left shift happens */
+ /* after the accumulation of the sum of squares (original */
+ /* code initialized s to 2) */
+ s = 1;
+ p_h = h;
+
+ for (i = (L_CODE >> 1); i != 0 ; i--)
+ {
+ tmp1 = *(p_h++);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) tmp1, (Word32) tmp1, s);
+ tmp1 = *(p_h++);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) tmp1, (Word32) tmp1, s);
+
+ }
+
+ s <<= 1;
+
+ if (s & MIN_32)
+ {
+ p_h2 = h2;
+ p_h = h;
+
+ for (i = (L_CODE >> 1); i != 0; i--)
+ {
+ *(p_h2++) = *(p_h++) >> 1;
+ *(p_h2++) = *(p_h++) >> 1;
+ }
+ }
+ else
+ {
+
+ s >>= 1;
+
+ s = Inv_sqrt(s, pOverflow);
+
+ if (s < (Word32) 0x00ffffffL)
+ {
+ /* k = 0.99*k */
+ dec = (Word16)(((s >> 9) * 32440) >> 15);
+ }
+ else
+ {
+ dec = 32440; /* 0.99 */
+ }
+
+ p_h = h;
+ p_h2 = h2;
+
+ for (i = (L_CODE >> 1); i != 0; i--)
+ {
+ *(p_h2++) = (Word16)((amrnb_fxp_mac_16_by_16bb((Word32) * (p_h++), (Word32) dec, 0x020L)) >> 6);
+ *(p_h2++) = (Word16)((amrnb_fxp_mac_16_by_16bb((Word32) * (p_h++), (Word32) dec, 0x020L)) >> 6);
+ }
+ }
+ /* build matrix rr[] */
+
+ s = 0;
+
+ p_h2 = h2;
+
+ rr1 = &rr[L_CODE-1][L_CODE-1];
+
+ for (i = L_CODE >> 1; i != 0 ; i--)
+ {
+ tmp1 = *(p_h2++);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) tmp1, (Word32) tmp1, s);
+ *rr1 = (Word16)((s + 0x00004000L) >> 15);
+ rr1 -= (L_CODE + 1);
+ tmp1 = *(p_h2++);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) tmp1, (Word32) tmp1, s);
+ *rr1 = (Word16)((s + 0x00004000L) >> 15);
+ rr1 -= (L_CODE + 1);
+ }
+
+
+ p_rr_ref1 = rr[L_CODE-1];
+
+ for (dec = 1; dec < L_CODE; dec += 2)
+ {
+ rr1 = &p_rr_ref1[L_CODE-1-dec];
+
+ rr2 = &rr[L_CODE-1-dec][L_CODE-1];
+ rr3 = &rr[L_CODE-1-(dec+1)][L_CODE-1];
+
+ s = 0;
+ s2 = 0;
+
+ p_sign1 = &sign[L_CODE - 1];
+ p_sign2 = &sign[L_CODE - 1 - dec];
+
+ p_h2 = h2;
+ p_h = &h2[dec];
+
+ for (i = (L_CODE - dec - 1); i != 0 ; i--)
+ {
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_h2), (Word32) * (p_h++), s);
+ s2 = amrnb_fxp_mac_16_by_16bb((Word32) * (p_h2++), (Word32) * (p_h), s2);
+
+ tmp1 = (Word16)((s + 0x00004000L) >> 15);
+ tmp11 = (Word16)((s2 + 0x00004000L) >> 15);
+
+ tmp2 = ((Word32) * (p_sign1) * *(p_sign2--)) >> 15;
+ tmp22 = ((Word32) * (p_sign1--) * *(p_sign2)) >> 15;
+
+ *rr2 = ((Word32) tmp1 * tmp2) >> 15;
+ *(rr1--) = *rr2;
+ *rr1 = ((Word32) tmp11 * tmp22) >> 15;
+ *rr3 = *rr1;
+
+ rr1 -= (L_CODE);
+ rr2 -= (L_CODE + 1);
+ rr3 -= (L_CODE + 1);
+
+ }
+
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_h2), (Word32) * (p_h), s);
+
+ tmp1 = (Word16)((s + 0x00004000L) >> 15);
+
+ tmp2 = ((Word32) * (p_sign1) * *(p_sign2)) >> 15;
+ *rr1 = ((Word32) tmp1 * tmp2) >> 15;
+
+ *rr2 = *rr1;
+
+ rr1 -= (L_CODE + 1);
+ rr2 -= (L_CODE + 1);
+
+ }
+
+ return;
+
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef COR_H_H
+#define COR_H_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+#include "cor_h_x.h" /* Used by legacy files */
+#include "cor_h_x2.h" /* Used by legacy files */
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void cor_h(
+ Word16 h[], /* (i) : impulse response of weighted synthesis
+ filter */
+ Word16 sign[], /* (i) : sign of d[n] */
+ Word16 rr[][L_CODE], /* (o) : matrix of autocorrelation */
+ Flag *pOverflow
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: cor_h_x.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "cor_h_x.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cor_h_x
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ h = vector containing the impulse response of the weighted synthesis
+ filter; vector contents are of type Word16; vector length is
+ 2 * L_SUBFR
+ x = target signal vector; vector contents are of type Word16; vector
+ length is L_SUBFR
+ dn = vector containing the correlation between the target and the
+ impulse response; vector contents are of type Word16; vector
+ length is L_CODE
+ sf = scaling factor of type Word16 ; 2 when mode is MR122, 1 for all
+ other modes
+
+ Outputs:
+ dn contents are the newly calculated correlation values
+
+ pOverflow = pointer of type Flag * to overflow indicator.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes the correlation between the target signal (x) and the
+ impulse response (h).
+
+ The correlation is given by: d[n] = sum_{i=n}^{L-1} x[i] h[i-n],
+ where: n=0,...,L-1
+
+ d[n] is normalized such that the sum of 5 maxima of d[n] corresponding to
+ each position track does not saturate.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cor_h.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void cor_h_x (
+ Word16 h[], // (i): impulse response of weighted synthesis filter
+ Word16 x[], // (i): target
+ Word16 dn[], // (o): correlation between target and h[]
+ Word16 sf // (i): scaling factor: 2 for 12.2, 1 for others
+)
+{
+ cor_h_x2(h, x, dn, sf, NB_TRACK, STEP);
+}
+
+
+void cor_h_x2 (
+ Word16 h[], // (i): impulse response of weighted synthesis filter
+ Word16 x[], // (i): target
+ Word16 dn[], // (o): correlation between target and h[]
+ Word16 sf, // (i): scaling factor: 2 for 12.2, 1 for others
+ Word16 nb_track,// (i): the number of ACB tracks
+ Word16 step // (i): step size from one pulse position to the next
+ in one track
+)
+{
+ Word16 i, j, k;
+ Word32 s, y32[L_CODE], max, tot;
+
+ // first keep the result on 32 bits and find absolute maximum
+
+ tot = 5;
+
+ for (k = 0; k < nb_track; k++)
+ {
+ max = 0;
+ for (i = k; i < L_CODE; i += step)
+ {
+ s = 0;
+ for (j = i; j < L_CODE; j++)
+ s = L_mac (s, x[j], h[j - i]);
+
+ y32[i] = s;
+
+ s = L_abs (s);
+ if (L_sub (s, max) > (Word32) 0L)
+ max = s;
+ }
+ tot = L_add (tot, L_shr (max, 1));
+ }
+
+ j = sub (norm_l (tot), sf);
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ dn[i] = pv_round (L_shl (y32[i], j));
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void cor_h_x(
+ Word16 h[], /* (i): impulse response of weighted synthesis filter */
+ Word16 x[], /* (i): target */
+ Word16 dn[], /* (o): correlation between target and h[] */
+ Word16 sf, /* (i): scaling factor: 2 for 12.2, 1 for others */
+ Flag *pOverflow /* (o): pointer to overflow flag */
+)
+{
+ register Word16 i;
+ register Word16 j;
+ register Word16 k;
+
+ Word32 s;
+ Word32 y32[L_CODE];
+ Word32 max;
+ Word32 tot;
+
+ Word16 *p_x;
+ Word16 *p_ptr;
+ Word32 *p_y32;
+
+
+ tot = 5;
+ for (k = 0; k < NB_TRACK; k++) /* NB_TRACK = 5 */
+ {
+ max = 0;
+ for (i = k; i < L_CODE; i += STEP) /* L_CODE = 40; STEP = 5 */
+ {
+ s = 0;
+ p_x = &x[i];
+ p_ptr = h;
+
+ for (j = (L_CODE - i - 1) >> 1; j != 0; j--)
+ {
+ s += ((Word32) * (p_x++) * *(p_ptr++)) << 1;
+ s += ((Word32) * (p_x++) * *(p_ptr++)) << 1;
+ }
+
+ s += ((Word32) * (p_x++) * *(p_ptr++)) << 1;
+
+ if (!((L_CODE - i) & 1)) /* if even number of iterations */
+ {
+ s += ((Word32) * (p_x++) * *(p_ptr++)) << 1;
+ }
+
+ y32[i] = s;
+
+ if (s < 0)
+ {
+ s = -s;
+ }
+
+ if (s > max)
+ {
+ max = s;
+ }
+ }
+
+ tot += (max >> 1);
+ }
+
+
+ j = norm_l(tot) - sf;
+
+ p_ptr = dn;
+ p_y32 = y32;;
+
+ for (i = L_CODE >> 1; i != 0; i--)
+ {
+ s = L_shl(*(p_y32++), j, pOverflow);
+ *(p_ptr++) = (s + 0x00008000) >> 16;
+ s = L_shl(*(p_y32++), j, pOverflow);
+ *(p_ptr++) = (s + 0x00008000) >> 16;
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains prototype declaration for cor_h_x function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef COR_H_X_H
+#define COR_H_X_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void cor_h_x(
+ Word16 h[], /* (i): impulse response of weighted synthesis filter */
+ Word16 x[], /* (i): target */
+ Word16 dn[], /* (o): correlation between target and h[] */
+ Word16 sf, /* (i): scaling factor: 2 for 12.2, 1 for others */
+ Flag *pOverflow /* (o): pointer to overflow flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: cor_h_x2.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "cor_h_x.h"
+#include "cor_h_x2.h" // BX
+#include "basic_op.h"
+#include "l_abs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define LOG2_OF_32 5
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cor_h_x2
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ h = vector containing the impulse response of the weighted synthesis
+ filter; vector contents are of type Word16; vector length is
+ 2 * L_SUBFR
+ x = target signal vector; vector contents are of type Word16; vector
+ length is L_SUBFR
+ dn = vector containing the correlation between the target and the
+ impulse response; vector contents are of type Word16; vector
+ length is L_CODE
+ sf = scaling factor of type Word16 ; 2 when mode is MR122, 1 for all
+ other modes
+ nb_track = number of ACB tracks (Word16)
+ step = step size between pulses in one track (Word16)
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ dn contents are the newly calculated correlation values
+ pOverflow = 1 if the math functions called by cor_h_x2 result in overflow
+ else zero.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes the correlation between the target signal (x) and the
+ impulse response (h).
+
+ The correlation is given by: d[n] = sum_{i=n}^{L-1} x[i] h[i-n],
+ where: n=0,...,L-1
+
+ d[n] is normalized such that the sum of 5 maxima of d[n] corresponding to
+ each position track does not saturate.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ cor_h.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+The original etsi reference code uses a global flag Overflow. However, in the
+actual implementation a pointer to a the overflow flag is passed in.
+
+void cor_h_x2 (
+ Word16 h[], // (i): impulse response of weighted synthesis filter
+ Word16 x[], // (i): target
+ Word16 dn[], // (o): correlation between target and h[]
+ Word16 sf, // (i): scaling factor: 2 for 12.2, 1 for others
+ Word16 nb_track,// (i): the number of ACB tracks
+ Word16 step // (i): step size from one pulse position to the next
+ in one track
+)
+{
+ Word16 i, j, k;
+ Word32 s, y32[L_CODE], max, tot;
+
+ // first keep the result on 32 bits and find absolute maximum
+
+ tot = 5;
+
+ for (k = 0; k < nb_track; k++)
+ {
+ max = 0;
+ for (i = k; i < L_CODE; i += step)
+ {
+ s = 0;
+ for (j = i; j < L_CODE; j++)
+ s = L_mac (s, x[j], h[j - i]);
+
+ y32[i] = s;
+
+ s = L_abs (s);
+ if (L_sub (s, max) > (Word32) 0L)
+ max = s;
+ }
+ tot = L_add (tot, L_shr (max, 1));
+ }
+
+ j = sub (norm_l (tot), sf);
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ dn[i] = pv_round (L_shl (y32[i], j));
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void cor_h_x2(
+ Word16 h[], /* (i): impulse response of weighted synthesis filter */
+ Word16 x[], /* (i): target */
+ Word16 dn[], /* (o): correlation between target and h[] */
+ Word16 sf, /* (i): scaling factor: 2 for 12.2, 1 for others */
+ Word16 nb_track,/* (i): the number of ACB tracks */
+ Word16 step, /* (i): step size from one pulse position to the next
+ in one track */
+ Flag *pOverflow
+)
+{
+ register Word16 i;
+ register Word16 j;
+ register Word16 k;
+ Word32 s;
+ Word32 y32[L_CODE];
+ Word32 max;
+ Word32 tot;
+
+
+ /* first keep the result on 32 bits and find absolute maximum */
+ tot = LOG2_OF_32;
+ for (k = 0; k < nb_track; k++)
+ {
+ max = 0;
+ for (i = k; i < L_CODE; i += step)
+ {
+ s = 0;
+
+ for (j = i; j < L_CODE; j++)
+ {
+ s = amrnb_fxp_mac_16_by_16bb((Word32)x[j], (Word32)h[j-i], s);
+ }
+
+ s = s << 1;
+ y32[i] = s;
+ s = L_abs(s);
+
+ if (s > max)
+ {
+ max = s;
+ }
+ }
+ tot = (tot + (max >> 1));
+ }
+
+ j = norm_l(tot) - sf;
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ dn[i] = pv_round(L_shl(y32[i], j, pOverflow), pOverflow);
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: cor_h_x2.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains prototype declaration for cor_h_x2 function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef COR_H_X2_H
+#define COR_H_X2_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void cor_h_x2(
+ Word16 h[], /* (i): impulse response of weighted synthesis filter */
+ Word16 x[], /* (i): target */
+ Word16 dn[], /* (o): correlation between target and h[] */
+ Word16 sf, /* (i): scaling factor: 2 for 12.2, 1 for others */
+ Word16 nb_track,/* (i): the number of ACB tracks */
+ Word16 step, /* (i): step size from one pulse position to the next
+ in one track */
+ Flag *pOverflow
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _COR_H_X2_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+
+
+
+ Filename: corrwght_tab.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the tables for correlation weights
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "p_ol_wgh.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here. Include conditional
+ ; compile variables also.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; [Variable declaration - defined here and used outside this module]
+ ----------------------------------------------------------------------------*/
+ const Word16 corrweight[251] =
+ {
+ 20473, 20506, 20539, 20572, 20605, 20644, 20677,
+ 20716, 20749, 20788, 20821, 20860, 20893, 20932,
+ 20972, 21011, 21050, 21089, 21129, 21168, 21207,
+ 21247, 21286, 21332, 21371, 21417, 21456, 21502,
+ 21542, 21588, 21633, 21679, 21725, 21771, 21817,
+ 21863, 21909, 21961, 22007, 22059, 22105, 22158,
+ 22210, 22263, 22315, 22367, 22420, 22472, 22531,
+ 22584, 22643, 22702, 22761, 22820, 22879, 22938,
+ 23003, 23062, 23128, 23193, 23252, 23324, 23390,
+ 23455, 23527, 23600, 23665, 23744, 23816, 23888,
+ 23967, 24045, 24124, 24202, 24288, 24366, 24451,
+ 24537, 24628, 24714, 24805, 24904, 24995, 25094,
+ 25192, 25297, 25395, 25500, 25611, 25723, 25834,
+ 25952, 26070, 26188, 26313, 26444, 26575, 26706,
+ 26844, 26988, 27132, 27283, 27440, 27597, 27761,
+ 27931, 28108, 28285, 28475, 28665, 28869, 29078,
+ 29295, 29524, 29760, 30002, 30258, 30527, 30808,
+ 31457, 32767, 32767, 32767, 32767, 32767,
+ 32767, 32767, 31457, 30808, 30527, 30258, 30002,
+ 29760, 29524, 29295, 29078, 28869, 28665, 28475,
+ 28285, 28108, 27931, 27761, 27597, 27440, 27283,
+ 27132, 26988, 26844, 26706, 26575, 26444, 26313,
+ 26188, 26070, 25952, 25834, 25723, 25611, 25500,
+ 25395, 25297, 25192, 25094, 24995, 24904, 24805,
+ 24714, 24628, 24537, 24451, 24366, 24288, 24202,
+ 24124, 24045, 23967, 23888, 23816, 23744, 23665,
+ 23600, 23527, 23455, 23390, 23324, 23252, 23193,
+ 23128, 23062, 23003, 22938, 22879, 22820, 22761,
+ 22702, 22643, 22584, 22531, 22472, 22420, 22367,
+ 22315, 22263, 22210, 22158, 22105, 22059, 22007,
+ 21961, 21909, 21863, 21817, 21771, 21725, 21679,
+ 21633, 21588, 21542, 21502, 21456, 21417, 21371,
+ 21332, 21286, 21247, 21207, 21168, 21129, 21089,
+ 21050, 21011, 20972, 20932, 20893, 20860, 20821,
+ 20788, 20749, 20716, 20677, 20644, 20605, 20572,
+ 20539, 20506, 20473, 20434, 20401, 20369, 20336
+ };
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ None
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] corrwght.tab, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: div_32.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+#include "div_32.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: div_32
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_num = 32 bit signed integer (Word32) whose value falls in the
+ range : 0x0000 0000 < L_num < L_denom
+ L_denom_hi = 16 bit positive normalized integer whose value falls in
+ the range : 0x4000 < hi < 0x7fff
+ L_denom_lo = 16 bit positive integer whose value falls in the range :
+ 0 < lo < 0x7fff
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit divide operation resulted in overflow
+
+ Returns:
+ result = 32-bit quotient of of the division of two 32 bit integers
+ L_num / L_denom (Word32)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function is a fractional integer division of two 32 bit numbers, the
+ numerator L_num and the denominator L_denom. The denominator is formed by
+ combining denom_hi and denom_lo. Note that denom_hi is a normalized numbers.
+ The numerator and denominator must be positive and the numerator must be
+ less than the denominator.
+
+ The division is done as follows:
+ 1. Find 1/L_denom by first approximating: approx = 1 / denom_hi.
+ 2. 1/L_denom = approx * (2.0 - L_denom * approx ).
+ 3. result = L_num * (1/L_denom).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] div_32() function in oper_32b.c, UMTS GSM AMR speech codec, R99 -
+ Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word32 Div_32(Word32 L_num,
+ Word16 L_denom_hi,
+ Word16 L_denom_lo,
+ Flag *pOverflow)
+{
+
+ Word16 approx;
+ Word16 hi;
+ Word16 lo;
+ Word16 n_hi;
+ Word16 n_lo;
+ Word32 result;
+
+ /* First approximation: 1 / L_denom = 1/L_denom_hi */
+
+ approx = div_s((Word16) 0x3fff, L_denom_hi);
+
+ /* 1/L_denom = approx * (2.0 - L_denom * approx) */
+
+ result = Mpy_32_16(L_denom_hi, L_denom_lo, approx, pOverflow);
+ /* result is > 0 , and less than 1.0 */
+ result = 0x7fffffffL - result;
+
+ hi = (Word16)(result >> 16);
+ lo = (result >> 1) - (hi << 15);
+
+ result = Mpy_32_16(hi, lo, approx, pOverflow);
+
+ /* L_num * (1/L_denom) */
+
+ hi = (Word16)(result >> 16);
+ lo = (result >> 1) - (hi << 15);
+
+ n_hi = (Word16)(L_num >> 16);
+ n_lo = (L_num >> 1) - (n_hi << 15);
+
+ result = Mpy_32(n_hi, n_lo, hi, lo, pOverflow);
+ result = L_shl(result, 2, pOverflow);
+
+ return (result);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: div_32.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the Div_32 function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef DIV_32_H
+#define DIV_32_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word32 Div_32(Word32 L_num,
+ Word16 L_denom_hi,
+ Word16 L_denom_lo,
+ Flag *pOverflow) ;
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _DIV_32_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dtx_enc.cpp
+ Functions: dtx_enc_init
+ dtx_enc_reset
+ dtx_enc_exit
+ dtx_enc
+ dtx_buffer
+ tx_dtx_handler
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the various functions that perform the computation of the
+ Silence Indicator (SID) parameters when in Discontinuous Transmission (DTX)
+ mode.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "dtx_enc.h"
+#include "q_plsf.h"
+#include "typedef.h"
+#include "mode.h"
+#include "basic_op.h"
+#include "log2.h"
+#include "lsp_lsf.h"
+#include "reorder.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+extern Word32 L_add(register Word32 L_var1, register Word32 L_var2, Flag *pOverflow);
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dtx_enc_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to an array of pointers to structures of type
+ dtx_encState
+
+ Outputs:
+ pointer pointed to by st is set to the address of the allocated
+ memory
+
+ Returns:
+ return_value = 0, if initialization was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function allocates the state memory used by the dtx_enc function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dtx_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int dtx_enc_init (dtx_encState **st)
+{
+ dtx_encState* s;
+
+ if (st == (dtx_encState **) NULL){
+ fprintf(stderr, "dtx_enc_init: invalid parameter\n");
+ return -1;
+ }
+
+ *st = NULL;
+
+ // allocate memory
+ if ((s= (dtx_encState *) malloc(sizeof(dtx_encState))) == NULL){
+ fprintf(stderr, "dtx_enc_init: can not malloc state structure\n");
+ return -1;
+ }
+
+ dtx_enc_reset(s);
+ *st = s;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 dtx_enc_init(dtx_encState **st, const Word16* lsp_init_data_ptr)
+{
+ dtx_encState* s;
+
+ if (st == (dtx_encState **) NULL)
+ {
+ return(-1);
+ }
+
+ *st = NULL;
+
+ /* allocate memory */
+ if ((s = (dtx_encState *) oscl_malloc(sizeof(dtx_encState))) == NULL)
+ {
+ return(-1);
+ }
+
+ dtx_enc_reset(s, lsp_init_data_ptr);
+ *st = s;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dtx_enc_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to structures of type dtx_encState
+
+ Outputs:
+ structure pointed to by st is initialized to its reset value
+
+ Returns:
+ return_value = 1, if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ lsp_init_data = table containing LSP initialization values;
+ table elements are constants of type Word16;
+ table length is M
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function initializes the fields of the state memory used by dtx_enc
+ to their reset values.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dtx_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int dtx_enc_reset (dtx_encState *st)
+{
+ Word16 i;
+
+ if (st == (dtx_encState *) NULL){
+ fprintf(stderr, "dtx_enc_reset: invalid parameter\n");
+ return -1;
+ }
+
+ st->hist_ptr = 0;
+ st->log_en_index = 0;
+ st->init_lsf_vq_index = 0;
+ st->lsp_index[0] = 0;
+ st->lsp_index[1] = 0;
+ st->lsp_index[2] = 0;
+
+ // Init lsp_hist[]
+ for(i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ Copy(lsp_init_data, &st->lsp_hist[i * M], M);
+ }
+
+ // Reset energy history
+ Set_zero(st->log_en_hist, M);
+
+ st->dtxHangoverCount = DTX_HANG_CONST;
+ st->decAnaElapsedCount = 32767;
+
+ return 1;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 dtx_enc_reset(dtx_encState *st, const Word16* lsp_init_data_ptr)
+{
+ Word16 i;
+
+ if (st == (dtx_encState *) NULL)
+ {
+ return(-1);
+ }
+
+ st->hist_ptr = 0;
+ st->log_en_index = 0;
+ st->init_lsf_vq_index = 0;
+ st->lsp_index[0] = 0;
+ st->lsp_index[1] = 0;
+ st->lsp_index[2] = 0;
+
+ /* Init lsp_hist[] */
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ oscl_memcpy(&st->lsp_hist[i * M], lsp_init_data_ptr, M*sizeof(Word16));
+ }
+
+ /* Reset energy history */
+ oscl_memset(st->log_en_hist, 0, sizeof(Word16)*M);
+ st->dtxHangoverCount = DTX_HANG_CONST;
+ st->decAnaElapsedCount = 32767;
+
+ return(1);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dtx_enc_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to an array of pointers to structures of type
+ dtx_encState
+
+ Outputs:
+ st points to the NULL address
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function deallocates the state memory used by dtx_enc function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dtx_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void dtx_enc_exit (dtx_encState **st)
+{
+ if (st == NULL || *st == NULL)
+ return;
+
+ // deallocate memory
+ free(*st);
+ *st = NULL;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void dtx_enc_exit(dtx_encState **st)
+{
+ if (st == NULL || *st == NULL)
+ {
+ return;
+ }
+
+ /* deallocate memory */
+ oscl_free(*st);
+ *st = NULL;
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dtx_enc
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to structures of type dtx_encState
+ computeSidFlag = compute SID flag of type Word16
+ qSt = pointer to structures of type Q_plsfState
+ predState = pointer to structures of type gc_predState
+ anap = pointer to an array of pointers to analysis parameters of
+ type Word16
+
+ Outputs:
+ structure pointed to by st contains the newly calculated SID
+ parameters
+ structure pointed to by predState contains the new logarithmic frame
+ energy
+ pointer pointed to by anap points to the location of the new
+ logarithmic frame energy and new LSPs
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates the SID parameters when in the DTX mode.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dtx_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int dtx_enc(dtx_encState *st, // i/o : State struct
+ Word16 computeSidFlag, // i : compute SID
+ Q_plsfState *qSt, // i/o : Qunatizer state struct
+ gc_predState* predState, // i/o : State struct
+ Word16 **anap // o : analysis parameters
+ )
+{
+ Word16 i,j;
+ Word16 log_en;
+ Word16 lsf[M];
+ Word16 lsp[M];
+ Word16 lsp_q[M];
+ Word32 L_lsp[M];
+
+ // VOX mode computation of SID parameters
+ if ((computeSidFlag != 0) ||
+ (st->log_en_index == 0))
+ {
+ // compute new SID frame if safe i.e don't
+ // compute immediately after a talk spurt
+ log_en = 0;
+ for (i = 0; i < M; i++)
+ {
+ L_lsp[i] = 0;
+ }
+
+ // average energy and lsp
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ log_en = add(log_en,
+ shr(st->log_en_hist[i],2));
+
+ for (j = 0; j < M; j++)
+ {
+ L_lsp[j] = L_add(L_lsp[j],
+ L_deposit_l(st->lsp_hist[i * M + j]));
+ }
+ }
+
+ log_en = shr(log_en, 1);
+ for (j = 0; j < M; j++)
+ {
+ lsp[j] = extract_l(L_shr(L_lsp[j], 3)); // divide by 8
+ }
+
+ // quantize logarithmic energy to 6 bits
+ st->log_en_index = add(log_en, 2560); // +2.5 in Q10
+ st->log_en_index = add(st->log_en_index, 128); // add 0.5/4 in Q10
+ st->log_en_index = shr(st->log_en_index, 8);
+
+ if (sub(st->log_en_index, 63) > 0)
+ {
+ st->log_en_index = 63;
+ }
+ if (st->log_en_index < 0)
+ {
+ st->log_en_index = 0;
+ }
+
+ // update gain predictor memory
+ log_en = shl(st->log_en_index, -2+10); // Q11 and divide by 4
+ log_en = sub(log_en, 2560); // add 2.5 in Q11
+
+ log_en = sub(log_en, 9000);
+ if (log_en > 0)
+ {
+ log_en = 0;
+ }
+ if (sub(log_en, -14436) < 0)
+ {
+ log_en = -14436;
+ }
+
+ // past_qua_en for other modes than MR122
+ predState->past_qua_en[0] = log_en;
+ predState->past_qua_en[1] = log_en;
+ predState->past_qua_en[2] = log_en;
+ predState->past_qua_en[3] = log_en;
+
+ // scale down by factor 20*log10(2) in Q15
+ log_en = mult(5443, log_en);
+
+ // past_qua_en for mode MR122
+ predState->past_qua_en_MR122[0] = log_en;
+ predState->past_qua_en_MR122[1] = log_en;
+ predState->past_qua_en_MR122[2] = log_en;
+ predState->past_qua_en_MR122[3] = log_en;
+
+ // make sure that LSP's are ordered
+ Lsp_lsf(lsp, lsf, M);
+ Reorder_lsf(lsf, LSF_GAP, M);
+ Lsf_lsp(lsf, lsp, M);
+
+ // Quantize lsp and put on parameter list
+ Q_plsf_3(qSt, MRDTX, lsp, lsp_q, st->lsp_index,
+ &st->init_lsf_vq_index);
+ }
+
+ *(*anap)++ = st->init_lsf_vq_index; // 3 bits
+
+ *(*anap)++ = st->lsp_index[0]; // 8 bits
+ *(*anap)++ = st->lsp_index[1]; // 9 bits
+ *(*anap)++ = st->lsp_index[2]; // 9 bits
+
+
+ *(*anap)++ = st->log_en_index; // 6 bits
+ // = 35 bits
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void dtx_enc(dtx_encState *st, /* i/o : State struct */
+ Word16 computeSidFlag, /* i : compute SID */
+ Q_plsfState *qSt, /* i/o : Qunatizer state struct */
+ gc_predState* predState, /* i/o : State struct */
+ Word16 **anap, /* o : analysis parameters */
+ Flag *pOverflow /* i/o : overflow indicator */
+ )
+{
+ register Word16 i, j;
+ Word16 temp;
+ Word16 log_en;
+ Word16 lsf[M];
+ Word16 lsp[M];
+ Word16 lsp_q[M];
+ Word32 L_lsp[M];
+
+ /* VOX mode computation of SID parameters */
+
+ if ((computeSidFlag != 0) ||
+ (st->log_en_index == 0))
+ {
+ /* compute new SID frame if safe i.e don't
+ * compute immediately after a talk spurt */
+ log_en = 0;
+ for (i = M - 1; i >= 0; i--)
+ {
+ L_lsp[i] = 0;
+ }
+
+ /* average energy and lsp */
+ for (i = DTX_HIST_SIZE - 1; i >= 0; i--)
+ {
+ if (st->log_en_hist[i] < 0)
+ {
+ temp = ~((~(st->log_en_hist[i])) >> 2);
+ }
+ else
+ {
+ temp = st->log_en_hist[i] >> 2;
+ }
+ log_en = add_16(log_en, temp, pOverflow);
+
+ for (j = M - 1; j >= 0; j--)
+ {
+ L_lsp[j] = L_add(L_lsp[j],
+ (Word32)(st->lsp_hist[i * M + j]),
+ pOverflow);
+ }
+ }
+
+ if (log_en < 0)
+ {
+ log_en = ~((~log_en) >> 1);
+ }
+ else
+ {
+ log_en = log_en >> 1;
+ }
+
+ for (j = M - 1; j >= 0; j--)
+ {
+ /* divide by 8 */
+ if (L_lsp[j] < 0)
+ {
+ lsp[j] = (Word16)(~((~L_lsp[j]) >> 3));
+ }
+ else
+ {
+ lsp[j] = (Word16)(L_lsp[j] >> 3);
+ }
+ }
+
+ /* quantize logarithmic energy to 6 bits */
+ /* +2.5 in Q10 */
+ st->log_en_index = log_en + 2560;
+ /* add 0.5/4 in Q10 */
+ st->log_en_index += 128;
+ if (st->log_en_index < 0)
+ {
+ st->log_en_index = ~((~st->log_en_index) >> 8);
+ }
+ else
+ {
+ st->log_en_index = st->log_en_index >> 8;
+ }
+
+ /*---------------------------------------------*/
+ /* Limit to max and min allowable 6-bit values */
+ /* Note: For assembly implementation, use the */
+ /* following: */
+ /* if(st->long_en_index >> 6 != 0) */
+ /* { */
+ /* if(st->long_en_index < 0) */
+ /* { */
+ /* st->long_en_index = 0 */
+ /* } */
+ /* else */
+ /* { */
+ /* st->long_en_index = 63 */
+ /* } */
+ /* } */
+ /*---------------------------------------------*/
+ if (st->log_en_index > 63)
+ {
+ st->log_en_index = 63;
+ }
+ else if (st->log_en_index < 0)
+ {
+ st->log_en_index = 0;
+ }
+
+ /* update gain predictor memory */
+ /* Q11 and divide by 4 */
+ log_en = (Word16)(((Word32) st->log_en_index) << (-2 + 10));
+
+ log_en = sub(log_en, 11560, pOverflow);
+
+ if (log_en > 0)
+ {
+ log_en = 0;
+ }
+ else if (log_en < -14436)
+ {
+ log_en = -14436;
+ }
+
+ /* past_qua_en for other modes than MR122 */
+ predState->past_qua_en[0] = log_en;
+ predState->past_qua_en[1] = log_en;
+ predState->past_qua_en[2] = log_en;
+ predState->past_qua_en[3] = log_en;
+
+ /* scale down by factor 20*log10(2) in Q15 */
+ log_en = (Word16)(((Word32)(5443 * log_en)) >> 15);
+
+ /* past_qua_en for mode MR122 */
+ predState->past_qua_en_MR122[0] = log_en;
+ predState->past_qua_en_MR122[1] = log_en;
+ predState->past_qua_en_MR122[2] = log_en;
+ predState->past_qua_en_MR122[3] = log_en;
+
+ /* make sure that LSP's are ordered */
+ Lsp_lsf(lsp, lsf, M, pOverflow);
+ Reorder_lsf(lsf, LSF_GAP, M, pOverflow);
+ Lsf_lsp(lsf, lsp, M, pOverflow);
+
+ /* Quantize lsp and put on parameter list */
+ Q_plsf_3(qSt, MRDTX, lsp, lsp_q, st->lsp_index,
+ &st->init_lsf_vq_index, pOverflow);
+ }
+
+ *(*anap)++ = st->init_lsf_vq_index; /* 3 bits */
+ *(*anap)++ = st->lsp_index[0]; /* 8 bits */
+ *(*anap)++ = st->lsp_index[1]; /* 9 bits */
+ *(*anap)++ = st->lsp_index[2]; /* 9 bits */
+ *(*anap)++ = st->log_en_index; /* 6 bits */
+ /* = 35 bits */
+
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: dtx_buffer
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to structures of type dtx_encState
+ lsp_new = LSP vector whose elements are of type Word16; vector
+ length is M
+ speech = vector of speech samples of type Word16; vector length is
+ BFR_SIZE_GSM
+
+ Outputs:
+ structure pointed to by st contains the new LSPs and logarithmic
+ frame energy
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function handles the DTX buffer.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dtx_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int dtx_buffer(dtx_encState *st, // i/o : State struct
+ Word16 lsp_new[], // i : LSP vector
+ Word16 speech[] // i : speech samples
+)
+{
+ Word16 i;
+ Word32 L_frame_en;
+ Word16 log_en_e;
+ Word16 log_en_m;
+ Word16 log_en;
+
+ // update pointer to circular buffer
+ st->hist_ptr = add(st->hist_ptr, 1);
+ if (sub(st->hist_ptr, DTX_HIST_SIZE) == 0)
+ {
+ st->hist_ptr = 0;
+ }
+
+ // copy lsp vector into buffer
+ Copy(lsp_new, &st->lsp_hist[st->hist_ptr * M], M);
+
+ // compute log energy based on frame energy
+ L_frame_en = 0; // Q0
+ for (i=0; i < L_FRAME; i++)
+ {
+ L_frame_en = L_mac(L_frame_en, speech[i], speech[i]);
+ }
+ Log2(L_frame_en, &log_en_e, &log_en_m);
+
+ // convert exponent and mantissa to Word16 Q10
+ log_en = shl(log_en_e, 10); // Q10
+ log_en = add(log_en, shr(log_en_m, 15-10));
+
+ // divide with L_FRAME i.e subtract with log2(L_FRAME) = 7.32193
+ log_en = sub(log_en, 8521);
+
+ // insert into log energy buffer with division by 2
+ log_en = shr(log_en, 1);
+ st->log_en_hist[st->hist_ptr] = log_en; // Q10
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void dtx_buffer(dtx_encState *st, /* i/o : State struct */
+ Word16 lsp_new[], /* i : LSP vector */
+ Word16 speech[], /* i : speech samples */
+ Flag *pOverflow /* i/o : overflow indicator */
+ )
+{
+
+ register Word16 i;
+ Word32 L_frame_en;
+ Word32 L_temp;
+ Word16 log_en_e;
+ Word16 log_en_m;
+ Word16 log_en;
+ Word16 *p_speech = &speech[0];
+
+ /* update pointer to circular buffer */
+ st->hist_ptr += 1;
+
+ if (st->hist_ptr == DTX_HIST_SIZE)
+ {
+ st->hist_ptr = 0;
+ }
+
+ /* copy lsp vector into buffer */
+ oscl_memcpy(&st->lsp_hist[st->hist_ptr * M], lsp_new, M*sizeof(Word16));
+
+ /* compute log energy based on frame energy */
+ L_frame_en = 0; /* Q0 */
+
+ for (i = L_FRAME; i != 0; i--)
+ {
+ L_frame_en += (((Word32) * p_speech) * *(p_speech)) << 1;
+ p_speech++;
+ if (L_frame_en < 0)
+ {
+ L_frame_en = MAX_32;
+ break;
+ }
+ }
+
+ Log2(L_frame_en, &log_en_e, &log_en_m, pOverflow);
+
+ /* convert exponent and mantissa to Word16 Q10 */
+ /* Q10 */
+ L_temp = ((Word32) log_en_e) << 10;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ *pOverflow = 1;
+ log_en = (log_en_e > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ log_en = (Word16) L_temp;
+ }
+
+ log_en += log_en_m >> (15 - 10);
+
+ /* divide with L_FRAME i.e subtract with log2(L_FRAME) = 7.32193 */
+ log_en -= 8521;
+
+ /* insert into log energy buffer with division by 2 */
+
+ st->log_en_hist[st->hist_ptr] = log_en >> 1; /* Q10 */
+
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: tx_dtx_handler
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to structures of type dtx_encState
+ vad_flag = VAD decision flag of type Word16
+ usedMode = pointer to the currently used mode of type enum Mode
+
+ Outputs:
+ structure pointed to by st contains the newly calculated speech
+ hangover
+
+ Returns:
+ compute_new_sid_possible = flag to indicate a change in the
+ used mode; store type is Word16
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function adds extra speech hangover to analyze speech on the decoding
+ side.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ dtx_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 tx_dtx_handler(dtx_encState *st, // i/o : State struct
+ Word16 vad_flag, // i : vad decision
+ enum Mode *usedMode // i/o : mode changed or not
+ )
+{
+ Word16 compute_new_sid_possible;
+
+ // this state machine is in synch with the GSMEFR txDtx machine
+ st->decAnaElapsedCount = add(st->decAnaElapsedCount, 1);
+
+ compute_new_sid_possible = 0;
+
+ if (vad_flag != 0)
+ {
+ st->dtxHangoverCount = DTX_HANG_CONST;
+ }
+ else
+ { // non-speech
+ if (st->dtxHangoverCount == 0)
+ { // out of decoder analysis hangover
+ st->decAnaElapsedCount = 0;
+ *usedMode = MRDTX;
+ compute_new_sid_possible = 1;
+ }
+ else
+ { // in possible analysis hangover
+ st->dtxHangoverCount = sub(st->dtxHangoverCount, 1);
+
+ // decAnaElapsedCount + dtxHangoverCount < DTX_ELAPSED_FRAMES_THRESH
+ if (sub(add(st->decAnaElapsedCount, st->dtxHangoverCount),
+ DTX_ELAPSED_FRAMES_THRESH) < 0)
+ {
+ *usedMode = MRDTX;
+ // if short time since decoder update, do not add extra HO
+ }
+ // else
+ // override VAD and stay in
+ // speech mode *usedMode
+ // and add extra hangover
+ }
+ }
+
+ return compute_new_sid_possible;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 tx_dtx_handler(dtx_encState *st, /* i/o : State struct */
+ Word16 vad_flag, /* i : vad decision */
+ enum Mode *usedMode, /* i/o : mode changed or not */
+ Flag *pOverflow /* i/o : overflow indicator */
+ )
+{
+ Word16 compute_new_sid_possible;
+ Word16 count;
+
+ /* this state machine is in synch with the GSMEFR txDtx machine */
+ st->decAnaElapsedCount = add_16(st->decAnaElapsedCount, 1, pOverflow);
+
+ compute_new_sid_possible = 0;
+
+ if (vad_flag != 0)
+ {
+ st->dtxHangoverCount = DTX_HANG_CONST;
+ }
+ else
+ { /* non-speech */
+ if (st->dtxHangoverCount == 0)
+ { /* out of decoder analysis hangover */
+ st->decAnaElapsedCount = 0;
+ *usedMode = MRDTX;
+ compute_new_sid_possible = 1;
+ }
+ else
+ { /* in possible analysis hangover */
+ st->dtxHangoverCount -= 1;
+
+ /* decAnaElapsedCount + dtxHangoverCount < */
+ /* DTX_ELAPSED_FRAMES_THRESH */
+ count = add_16(st->decAnaElapsedCount, st->dtxHangoverCount,
+ pOverflow);
+ if (count < DTX_ELAPSED_FRAMES_THRESH)
+ {
+ *usedMode = MRDTX;
+ /* if short time since decoder update, */
+ /* do not add extra HO */
+ }
+ }
+ }
+
+ return(compute_new_sid_possible);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dtx_enc.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : dtx_enc.h
+ Purpose : DTX mode computation of SID parameters
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef dtx_enc_h
+#define dtx_enc_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "q_plsf.h"
+#include "gc_pred.h"
+#include "mode.h"
+#include "dtx_common_def.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 lsp_hist[M * DTX_HIST_SIZE];
+ Word16 log_en_hist[DTX_HIST_SIZE];
+ Word16 hist_ptr;
+ Word16 log_en_index;
+ Word16 init_lsf_vq_index;
+ Word16 lsp_index[3];
+
+ /* DTX handler stuff */
+ Word16 dtxHangoverCount;
+ Word16 decAnaElapsedCount;
+
+ } dtx_encState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ /*
+ **************************************************************************
+ * Function : dtx_enc_init
+ * Purpose : Allocates memory and initializes state variables
+ * Description : Stores pointer to filter status struct in *st. This
+ * pointer has to be passed to dtx_enc in each call.
+ * Returns : 0 on success
+ *
+ **************************************************************************
+ */
+ Word16 dtx_enc_init(dtx_encState **st, const Word16* lsp_init_data_ptr);
+
+ /*
+ **************************************************************************
+ *
+ * Function : dtx_enc_reset
+ * Purpose : Resets state memory
+ * Returns : 0 on success
+ *
+ **************************************************************************
+ */
+ Word16 dtx_enc_reset(dtx_encState *st, const Word16* lsp_init_data_ptr);
+
+ /*
+ **************************************************************************
+ *
+ * Function : dtx_enc_exit
+ * Purpose : The memory used for state memory is freed
+ * Description : Stores NULL in *st
+ *
+ **************************************************************************
+ */
+ void dtx_enc_exit(dtx_encState **st);
+
+ /*
+ **************************************************************************
+ *
+ * Function : dtx_enc
+ * Purpose :
+ * Description :
+ *
+ **************************************************************************
+ */
+ void dtx_enc(dtx_encState *st, /* i/o : State struct */
+ Word16 computeSidFlag, /* i : compute SID */
+ Q_plsfState *qSt, /* i/o : Qunatizer state struct */
+ gc_predState* predState, /* i/o : State struct */
+ Word16 **anap, /* o : analysis parameters */
+ Flag *pOverflow /* i/o : overflow indicator */
+ );
+
+ /*
+ **************************************************************************
+ *
+ * Function : dtx_buffer
+ * Purpose : handles the DTX buffer
+ *
+ **************************************************************************
+ */
+ void dtx_buffer(dtx_encState *st, /* i/o : State struct */
+ Word16 lsp_new[], /* i : LSP vector */
+ Word16 speech[], /* i : speech samples */
+ Flag *pOverflow /* i/o : overflow indicator */
+ );
+
+ /*
+ **************************************************************************
+ *
+ * Function : tx_dtx_handler
+ * Purpose : adds extra speech hangover to analyze speech on the decoding side.
+ * Description : returns 1 when a new SID analysis may be made
+ * otherwise it adds the appropriate hangover after a sequence
+ * with out updates of SID parameters .
+ *
+ **************************************************************************
+ */
+ Word16 tx_dtx_handler(dtx_encState *st, /* i/o : State struct */
+ Word16 vad_flag, /* i : vad decision */
+ enum Mode *usedMode, /* i/o : mode changed or not */
+ Flag *pOverflow /* i/o : overflow indicator */
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _dtx_enc_h_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: enc_lag3.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "enc_lag3.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: enc_lag3
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ T0 = Pitch delay of type Word16
+ T0_frac = Fractional pitch delay of type Word16
+ T0_prev = Integer pitch delay of last subframe of type Word16
+ T0_min = minimum of search range of type Word16
+ T0_max = maximum of search range of type Word16
+ delta_flag = Flag for 1st (or 3rd) subframe of type Word16
+ flag4 = Flag for encoding with 4 bits of type Word16
+ pOverflow = pointer indicating overflow of type Flag
+
+ Outputs:
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function implements the encoding of fractional pitch lag with
+ 1/3 resolution.
+
+ * FUNCTION: Enc_lag3
+ *
+ * PURPOSE: Encoding of fractional pitch lag with 1/3 resolution.
+ *
+ * DESCRIPTION:
+ * First and third subframes:
+ * --------------------------
+ * The pitch range is divided as follows:
+ * 19 1/3 to 84 2/3 resolution 1/3
+ * 85 to 143 resolution 1
+ *
+ * The period is encoded with 8 bits.
+ * For the range with fractions:
+ * index = (T-19)*3 + frac - 1;
+ * where T=[19..85] and frac=[-1,0,1]
+ * and for the integer only range
+ * index = (T - 85) + 197; where T=[86..143]
+ *
+ * Second and fourth subframes:
+ * ----------------------------
+ * For the 2nd and 4th subframes a resolution of 1/3 is always used,
+ * and the search range is relative to the lag in previous subframe.
+ * If t0 is the lag in the previous subframe then
+ * t_min=t0-5 and t_max=t0+4 and the range is given by
+ * t_min - 2/3 to t_max + 2/3
+ *
+ * The period in the 2nd (and 4th) subframe is encoded with 5 bits:
+ * index = (T-(t_min-1))*3 + frac - 1;
+ * where T=[t_min-1..t_max+1]
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ enc_lag3.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Word16 index, i, tmp_ind, uplag;
+ Word16 tmp_lag;
+
+ if (delta_flag == 0)
+ { // if 1st or 3rd subframe
+
+ // encode pitch delay (with fraction)
+
+ if (sub (T0, 85) <= 0)
+ {
+ // index = T0*3 - 58 + T0_frac
+ i = add (add (T0, T0), T0);
+ index = add (sub (i, 58), T0_frac);
+ }
+ else
+ {
+ index = add (T0, 112);
+ }
+ }
+ else
+ { // if second or fourth subframe
+ if (flag4 == 0) {
+
+ // 'normal' encoding: either with 5 or 6 bit resolution
+
+ // index = 3*(T0 - T0_min) + 2 + T0_frac
+ i = sub (T0, T0_min);
+ i = add (add (i, i), i);
+ index = add (add (i, 2), T0_frac);
+ }
+ else {
+
+ // encoding with 4 bit resolution
+
+ tmp_lag = T0_prev;
+
+ if ( sub( sub(tmp_lag, T0_min), 5) > 0)
+ tmp_lag = add (T0_min, 5);
+ if ( sub( sub(T0_max, tmp_lag), 4) > 0)
+ tmp_lag = sub (T0_max, 4);
+
+ uplag = add (add (add (T0, T0), T0), T0_frac);
+
+ i = sub (tmp_lag, 2);
+ tmp_ind = add (add (i, i), i);
+
+ if (sub (tmp_ind, uplag) >= 0) {
+ index = add (sub (T0, tmp_lag), 5);
+ }
+ else {
+
+ i = add (tmp_lag, 1);
+ i = add (add (i, i), i);
+
+ if (sub (i, uplag) > 0) {
+
+ index = add ( sub (uplag, tmp_ind), 3);
+ }
+ else {
+
+ index = add (sub (T0, tmp_lag), 11);
+ }
+ }
+
+ } // end if (encoding with 4 bit resolution)
+ } // end if (second of fourth subframe)
+
+ return index;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+
+Word16 Enc_lag3( /* o : Return index of encoding */
+ Word16 T0, /* i : Pitch delay */
+ Word16 T0_frac, /* i : Fractional pitch delay */
+ Word16 T0_prev, /* i : Integer pitch delay of last subframe */
+ Word16 T0_min, /* i : minimum of search range */
+ Word16 T0_max, /* i : maximum of search range */
+ Word16 delta_flag, /* i : Flag for 1st (or 3rd) subframe */
+ Word16 flag4, /* i : Flag for encoding with 4 bits */
+ Flag *pOverflow
+)
+{
+ Word16 index, i, tmp_ind, uplag;
+ Word16 tmp_lag;
+ Word16 temp1;
+ Word16 temp2;
+
+
+
+ if (delta_flag == 0)
+ { /* if 1st or 3rd subframe */
+
+ /* encode pitch delay (with fraction) */
+ temp1 = T0 - 85;
+ if (temp1 <= 0)
+ {
+ /* index = T0*3 - 58 + T0_frac */
+ index = (T0 << 1) + T0 - 58 + T0_frac;
+ }
+ else
+ {
+ index = T0 + 112;
+ }
+ }
+ else
+ { /* if second or fourth subframe */
+ if (flag4 == 0)
+ {
+
+ /* 'normal' encoding: either with 5 or 6 bit resolution */
+
+ /* index = 3*(T0 - T0_min) + 2 + T0_frac */
+ i = T0 - T0_min;
+ index = i + (i << 1) + 2 + T0_frac;
+ }
+ else
+ {
+
+ /* encoding with 4 bit resolution */
+
+ tmp_lag = T0_prev;
+ temp1 = tmp_lag - T0_min;
+ temp2 = temp1 - 5;
+ if (temp2 > 0)
+ {
+ tmp_lag = T0_min + 5;
+ }
+ temp1 = T0_max - tmp_lag;
+ temp2 = temp1 - 4;
+ if (temp2 > 0)
+ {
+ tmp_lag = T0_max - 4;
+ }
+ uplag = T0 + (T0 << 1);
+ uplag += T0_frac;
+ i = tmp_lag - 2;
+
+ tmp_ind = i + (i << 1);
+ temp1 = tmp_ind - uplag;
+
+ if (temp1 >= 0)
+ {
+ index = T0 - tmp_lag + 5;
+ }
+ else
+ {
+ i = tmp_lag + 1;
+
+ i += i << 1;
+
+ if (i > uplag)
+ {
+ index = uplag - tmp_ind + 3;
+ }
+ else
+ {
+ index = T0 - tmp_lag + 11;
+ }
+ }
+
+ } /* end if (encoding with 4 bit resolution) */
+ } /* end if (second of fourth subframe) */
+
+ return index;
+}
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: enc_lag3.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : enc_lag3.h
+ Purpose : Encoding of fractional pitch lag with 1/3 resolution.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _ENC_LAG3_H_
+#define _ENC_LAG3_H_
+#define enc_lag3_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 past_gain;
+ } agcState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ Word16
+ Enc_lag3( /* o : Return index of encoding */
+ Word16 T0, /* i : Pitch delay */
+ Word16 T0_frac, /* i : Fractional pitch delay */
+ Word16 T0_prev, /* i : Integer pitch delay of last subframe */
+ Word16 T0_min, /* i : minimum of search range */
+ Word16 T0_max, /* i : maximum of search range */
+ Word16 delta_flag, /* i : Flag for 1st (or 3rd) subframe */
+ Word16 flag4, /* i : Flag for encoding with 4 bits */
+ Flag *pOverflow
+ );
+
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ENC_LAG3_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: enc_lag6.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "enc_lag6.h"
+#include "typedef.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Enc_lag6
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ T0 -- Word16 -- Pitch delay
+ T0_frac -- Word16 -- Fractional pitch delay
+ T0_min -- Word16 -- minimum of search range
+ delta_flag -- Word16 -- Flag for 1st (or 3rd) subframe
+
+ Outputs:
+ pOverflow -- Pointer to Flag -- overflow indicator
+
+ Returns:
+ Word16 -- Return index of encoding
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Encoding of fractional pitch lag with 1/6 resolution.
+
+ DESCRIPTION:
+ First and third subframes:
+ --------------------------
+ The pitch range is divided as follows:
+ 17 3/6 to 94 3/6 resolution 1/6
+ 95 to 143 resolution 1
+
+ The period is encoded with 9 bits.
+ For the range with fractions:
+ index = (T-17)*6 + frac - 3;
+ where T=[17..94] and frac=[-2,-1,0,1,2,3]
+ and for the integer only range
+ index = (T - 95) + 463; where T=[95..143]
+
+ Second and fourth subframes:
+ ----------------------------
+ For the 2nd and 4th subframes a resolution of 1/6 is always used,
+ and the search range is relative to the lag in previous subframe.
+ If t0 is the lag in the previous subframe then
+ t_min=t0-5 and t_max=t0+4 and the range is given by
+ (t_min-1) 3/6 to (t_max) 3/6
+
+ The period in the 2nd (and 4th) subframe is encoded with 6 bits:
+ index = (T-(t_min-1))*6 + frac - 3;
+ where T=[t_min-1..t_max] and frac=[-2,-1,0,1,2,3]
+
+ Note that only 61 values are used. If the decoder receives 61, 62,
+ or 63 as the relative pitch index, it means that a transmission
+ error occurred and the pitch from previous subframe should be used.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ enc_lag6.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Enc_lag6( /* o : Return index of encoding */
+ Word16 T0, /* i : Pitch delay */
+ Word16 T0_frac, /* i : Fractional pitch delay */
+ Word16 T0_min, /* i : minimum of search range */
+ Word16 delta_flag, /* i : Flag for 1st (or 3rd) subframe */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ Word16 index;
+ Word16 i;
+ Word16 temp;
+
+ if (delta_flag == 0) /* if 1st or 3rd subframe */
+ {
+ /* encode pitch delay (with fraction) */
+ if (T0 <= 94)
+ {
+ /* index = T0*6 - 105 + T0_frac */
+ i = (T0 << 3) - (T0 << 1) - 105;
+
+ index = i + T0_frac;
+ }
+ else
+ {
+ index = T0 + 368;
+ }
+
+ }
+ else
+ /* if second or fourth subframe */
+ {
+ /* index = 6*(T0-T0_min) + 3 + T0_frac */
+ temp = (T0 - T0_min);
+
+ i = (temp << 3) - (temp << 1);
+ i += 3;
+
+ index = i + T0_frac;
+ }
+
+ return index;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: enc_lag6.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, enc_lag6.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef enc_lag6_h
+#define enc_lag6_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 Enc_lag6( /* o : Return index of encoding */
+ Word16 T0, /* i : Pitch delay */
+ Word16 T0_frac, /* i : Fractional pitch delay */
+ Word16 T0_min, /* i : minimum of search range */
+ Word16 delta_flag, /* i : Flag for 1st (or 3rd) subframe */
+ Flag *pOverflow /* o : Overflow indicator */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* enc_lag6_h */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+ Filename: enc_output_format_tab.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This file contains the tables of the number of data bytes per codec mode in
+ both WMF and IF2 output formats.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] AMR Speech Codec Frame Structure, 3GPP TS 26.101 version 4.1.0 Release 4,
+ June 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "amrencode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+ /* Number of data bytes in an encoder frame for each codec mode */
+ /* for WMF output format. */
+ /* Each entry is the sum of the 3GPP frame type byte and the */
+ /* number of packed core AMR data bytes */
+ const Word16 WmfEncBytesPerFrame[16] =
+ {
+ 13, /* 4.75 */
+ 14, /* 5.15 */
+ 16, /* 5.90 */
+ 18, /* 6.70 */
+ 20, /* 7.40 */
+ 21, /* 7.95 */
+ 27, /* 10.2 */
+ 32, /* 12.2 */
+ 6, /* GsmAmr comfort noise */
+ 7, /* Gsm-Efr comfort noise */
+ 6, /* IS-641 comfort noise */
+ 6, /* Pdc-Efr comfort noise */
+ 0, /* future use */
+ 0, /* future use */
+ 0, /* future use */
+ 1 /* No transmission */
+ };
+
+
+ /* Number of data bytes in an encoder frame for each codec mode */
+ /* for IF2 output format */
+ const Word16 If2EncBytesPerFrame[16] =
+ {
+ 13, /* 4.75 */
+ 14, /* 5.15 */
+ 16, /* 5.90 */
+ 18, /* 6.70 */
+ 19, /* 7.40 */
+ 21, /* 7.95 */
+ 26, /* 10.2 */
+ 31, /* 12.2 */
+ 6, /* GsmAmr comfort noise */
+ 6, /* Gsm-Efr comfort noise */
+ 6, /* IS-641 comfort noise */
+ 6, /* Pdc-Efr comfort noise */
+ 0, /* future use */
+ 0, /* future use */
+ 0, /* future use */
+ 1 /* No transmission */
+ };
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; Define all local variables
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Function body here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Return nothing or data or data pointer
+----------------------------------------------------------------------------*/
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Filename: ets_to_if2.cpp
+ Funtions: ets_to_if2
+
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "frame_type_3gpp.h"
+#include "ets_to_if2.h"
+#include "typedef.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ets_to_if2
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ frame_type_3gpp = decoder speech bit rate (enum Frame_Type_3GPP)
+ ets_input_ptr = pointer to input encoded speech bits in ETS format (Word16)
+ if2_output_ptr = pointer to output encoded speech bits in IF2 format (UWord8)
+
+ Outputs:
+ if2_output_ptr = pointer to encoded speech bits in the IF2 format (UWord8)
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs a transformation on the data buffers. It converts the
+ data format from ETS (European Telecommunication Standard) to IF2. ETS format
+ has the encoded speech bits each separate with only one bit stored in each
+ word. IF2 is the storage format where the frame type is in the first four bits
+ of the first byte. The upper four bits of that byte contain the first four
+ encoded speech bits for the frame. The following bytes contain the rest of
+ the encoded speech bits. The final byte has padded zeros to make the frame
+ byte aligned.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+AMR Speech Codec Frame Structure", 3GPP TS 26.101 version 4.1.0 Release 4, June 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void ets_to_if2(
+ enum Frame_Type_3GPP frame_type_3gpp,
+ Word16 *ets_input_ptr,
+ UWord8 *if2_output_ptr,
+ CommonAmrTbls* common_amr_tbls)
+{
+ Word16 i;
+ Word16 k;
+ Word16 j = 0;
+ Word16 *ptr_temp;
+ Word16 bits_left;
+ UWord8 accum;
+ const Word16* const* reorderBits_ptr = common_amr_tbls->reorderBits_ptr;
+ const Word16* numOfBits_ptr = common_amr_tbls->numOfBits_ptr;
+
+ if (frame_type_3gpp < AMR_SID)
+ {
+ if2_output_ptr[j++] = (UWord8)(frame_type_3gpp) |
+ (ets_input_ptr[reorderBits_ptr[frame_type_3gpp][0]] << 4) |
+ (ets_input_ptr[reorderBits_ptr[frame_type_3gpp][1]] << 5) |
+ (ets_input_ptr[reorderBits_ptr[frame_type_3gpp][2]] << 6) |
+ (ets_input_ptr[reorderBits_ptr[frame_type_3gpp][3]] << 7);
+
+ for (i = 4; i < numOfBits_ptr[frame_type_3gpp] - 7;)
+ {
+ if2_output_ptr[j] =
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]];
+ if2_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 1;
+ if2_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 2;
+ if2_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 3;
+ if2_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 4;
+ if2_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 5;
+ if2_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 6;
+ if2_output_ptr[j++] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 7;
+ }
+
+ bits_left = 4 + numOfBits_ptr[frame_type_3gpp] -
+ ((4 + numOfBits_ptr[frame_type_3gpp]) & 0xFFF8);
+
+ if (bits_left != 0)
+ {
+ if2_output_ptr[j] = 0;
+
+ for (k = 0; k < bits_left; k++)
+ {
+ if2_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << k;
+ }
+ }
+ }
+ else
+ {
+ if (frame_type_3gpp != AMR_NO_DATA)
+ {
+ /* First octet contains 3GPP frame type and */
+ /* first 4 bits of encoded parameters */
+ if2_output_ptr[j++] = (UWord8)(frame_type_3gpp) |
+ (ets_input_ptr[0] << 4) | (ets_input_ptr[1] << 5) |
+ (ets_input_ptr[2] << 6) | (ets_input_ptr[3] << 7);
+ ptr_temp = &ets_input_ptr[4];
+
+ bits_left = ((4 + numOfBits_ptr[frame_type_3gpp]) & 0xFFF8);
+
+ for (i = (bits_left - 7) >> 3; i > 0; i--)
+ {
+ accum = (UWord8) * (ptr_temp++);
+ accum |= (UWord8) * (ptr_temp++) << 1;
+ accum |= (UWord8) * (ptr_temp++) << 2;
+ accum |= (UWord8) * (ptr_temp++) << 3;
+ accum |= (UWord8) * (ptr_temp++) << 4;
+ accum |= (UWord8) * (ptr_temp++) << 5;
+ accum |= (UWord8) * (ptr_temp++) << 6;
+ accum |= (UWord8) * (ptr_temp++) << 7;
+
+ if2_output_ptr[j++] = accum;
+ }
+
+ bits_left = 4 + numOfBits_ptr[frame_type_3gpp] - bits_left;
+
+ if (bits_left != 0)
+ {
+ if2_output_ptr[j] = 0;
+
+ for (i = 0; i < bits_left; i++)
+ {
+ if2_output_ptr[j] |= (ptr_temp[i] << i);
+ }
+ }
+ }
+ else
+ {
+ /* When there is no data, LSnibble of first octet */
+ /* is the 3GPP frame type, MSnibble is zeroed out */
+ if2_output_ptr[j++] = (UWord8)(frame_type_3gpp);
+ }
+
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ets_to_if2.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the ets_to_if2 function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef ETS_TO_IF2_H
+#define ETS_TO_IF2_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "mode.h"
+#include "typedef.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void ets_to_if2(enum Frame_Type_3GPP mode,
+ Word16 *ets_input_ptr,
+ UWord8 *if2_output_ptr,
+ CommonAmrTbls* common_amr_tbls);
+
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ets_to_wmf.cpp
+ Functions: ets_to_wmf
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "ets_to_wmf.h"
+#include "typedef.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ets_to_wmf
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ frame_type_3gpp = decoder speech bit rate (enum Frame_Type_3GPP)
+ ets_input_ptr = pointer to input encoded speech bits in ETS format (Word16)
+ wmf_output_ptr = pointer to output encoded speech bits in WMF format(UWord8)
+
+ Outputs:
+ wmf_output_ptr = pointer to encoded speech bits in the WMF format (UWord8)
+
+ Returns:
+ None
+
+ Global Variables Used:
+ numOfBits = table of values that describe the number of bits per frame for
+ each 3GPP frame type mode. The table is type const Word16 and has
+ NUM_MODES elements. This table is located in bitreorder_tab.c.
+ reorderBits = table of pointers that point to tables used to reorder the
+ encoded speech bits when converting from ETS to WMF or IF2
+ format. The table is of type const Word16 * and contains
+ NUM_MODES-1 elements. This table is located in bitreorder_tab.c.
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs a transformation on the data buffers. It converts the
+ data format from ETS (European Telecommunication Standard) to WMF (wireless
+ multimedia forum). ETS format has the encoded speech bits each separate with
+ only one bit stored in each word. WMF is the storage format where the frame
+ type is in the first four bits of the first byte. This first byte has the
+ upper four bits as padded zeroes. The following bytes contain the rest of the
+ encoded speech bits. The final byte has padded zeros to make the frame byte
+ aligned.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void ets_to_wmf(
+ enum Frame_Type_3GPP frame_type_3gpp,
+ Word16 *ets_input_ptr,
+ UWord8 *wmf_output_ptr,
+ CommonAmrTbls* common_amr_tbls)
+{
+ Word16 i;
+ Word16 k = 0;
+ Word16 j = 0;
+ Word16 *ptr_temp;
+ Word16 bits_left;
+ UWord8 accum;
+ const Word16* const* reorderBits_ptr = common_amr_tbls->reorderBits_ptr;
+ const Word16* numOfBits_ptr = common_amr_tbls->numOfBits_ptr;
+
+ wmf_output_ptr[j++] = (UWord8)(frame_type_3gpp) & 0x0f;
+
+ if (frame_type_3gpp < AMR_SID)
+ {
+
+ for (i = 0; i < numOfBits_ptr[frame_type_3gpp] - 7;)
+ {
+ wmf_output_ptr[j] =
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 7;
+ wmf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 6;
+ wmf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 5;
+ wmf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 4;
+ wmf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 3;
+ wmf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 2;
+ wmf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 1;
+ wmf_output_ptr[j++] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]];
+ }
+
+ bits_left = numOfBits_ptr[frame_type_3gpp] -
+ (numOfBits_ptr[frame_type_3gpp] & 0xFFF8);
+
+ wmf_output_ptr[j] = 0;
+
+ for (k = 0; k < bits_left; k++)
+ {
+ wmf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << (7 - k);
+
+ }
+ }
+ else
+ {
+
+ ptr_temp = &ets_input_ptr[0];
+
+ for (i = numOfBits_ptr[frame_type_3gpp] - 7; i > 0; i -= 8)
+ {
+ accum = (UWord8) * (ptr_temp++) << 7;
+ accum |= (UWord8) * (ptr_temp++) << 6;
+ accum |= (UWord8) * (ptr_temp++) << 5;
+ accum |= (UWord8) * (ptr_temp++) << 4;
+ accum |= (UWord8) * (ptr_temp++) << 3;
+ accum |= (UWord8) * (ptr_temp++) << 2;
+ accum |= (UWord8) * (ptr_temp++) << 1;
+ accum |= (UWord8) * (ptr_temp++);
+
+ wmf_output_ptr[j++] = accum;
+ }
+
+ bits_left = numOfBits_ptr[frame_type_3gpp] -
+ (numOfBits_ptr[frame_type_3gpp] & 0xFFF8);
+
+ wmf_output_ptr[j] = 0;
+
+ for (i = 0; i < bits_left; i++)
+ {
+ wmf_output_ptr[j] |= *(ptr_temp++) << (7 - i);
+ }
+ }
+
+ return;
+}
+
+
+
+void ets_to_ietf(
+ enum Frame_Type_3GPP frame_type_3gpp,
+ Word16 *ets_input_ptr,
+ UWord8 *ietf_output_ptr,
+ CommonAmrTbls* common_amr_tbls)
+{
+ Word16 i;
+ Word16 k = 0;
+ Word16 j = 0;
+ Word16 *ptr_temp;
+ Word16 bits_left;
+ UWord8 accum;
+ const Word16* const* reorderBits_ptr = common_amr_tbls->reorderBits_ptr;
+ const Word16* numOfBits_ptr = common_amr_tbls->numOfBits_ptr;
+
+ ietf_output_ptr[j++] = (UWord8)(frame_type_3gpp << 3);
+
+ if (frame_type_3gpp < AMR_SID)
+ {
+ for (i = 0; i < numOfBits_ptr[frame_type_3gpp] - 7;)
+ {
+ ietf_output_ptr[j] =
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 7;
+ ietf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 6;
+ ietf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 5;
+ ietf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 4;
+ ietf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 3;
+ ietf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 2;
+ ietf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << 1;
+ ietf_output_ptr[j++] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]];
+ }
+
+ bits_left = numOfBits_ptr[frame_type_3gpp] -
+ (numOfBits_ptr[frame_type_3gpp] & 0xFFF8);
+
+ ietf_output_ptr[j] = 0;
+
+ for (k = 0; k < bits_left; k++)
+ {
+ ietf_output_ptr[j] |=
+ (UWord8) ets_input_ptr[reorderBits_ptr[frame_type_3gpp][i++]] << (7 - k);
+
+ }
+ }
+ else
+ {
+
+ ptr_temp = &ets_input_ptr[0];
+
+ for (i = numOfBits_ptr[frame_type_3gpp] - 7; i > 0; i -= 8)
+ {
+ accum = (UWord8) * (ptr_temp++) << 7;
+ accum |= (UWord8) * (ptr_temp++) << 6;
+ accum |= (UWord8) * (ptr_temp++) << 5;
+ accum |= (UWord8) * (ptr_temp++) << 4;
+ accum |= (UWord8) * (ptr_temp++) << 3;
+ accum |= (UWord8) * (ptr_temp++) << 2;
+ accum |= (UWord8) * (ptr_temp++) << 1;
+ accum |= (UWord8) * (ptr_temp++);
+
+ ietf_output_ptr[j++] = accum;
+ }
+
+ bits_left = numOfBits_ptr[frame_type_3gpp] -
+ (numOfBits_ptr[frame_type_3gpp] & 0xFFF8);
+
+ ietf_output_ptr[j] = 0;
+
+ for (i = 0; i < bits_left; i++)
+ {
+ ietf_output_ptr[j] |= *(ptr_temp++) << (7 - i);
+ }
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ets_to_wmf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the ets_to_wmf function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef ETS_TO_WMF_H
+#define ETS_TO_WMF_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "frame_type_3gpp.h"
+#include "typedef.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void ets_to_wmf(enum Frame_Type_3GPP frame_type_3gpp,
+ Word16 *ets_input_ptr,
+ UWord8 *wmf_output_ptr,
+ CommonAmrTbls* common_amr_tbls);
+
+ void ets_to_ietf(enum Frame_Type_3GPP frame_type_3gpp,
+ Word16 *ets_input_ptr,
+ UWord8 *ietf_output_ptr,
+ CommonAmrTbls* common_amr_tbls);
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: g_adapt.cpp
+ Functions:
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "g_adapt.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "oper_32b.h"
+#include "cnst.h"
+#include "gmed_n.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define LTP_GAIN_THR1 2721 /* 2721 Q13 = 0.3322 ~= 1.0 / (10*log10(2)) */
+#define LTP_GAIN_THR2 5443 /* 5443 Q13 = 0.6644 ~= 2.0 / (10*log10(2)) */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gain_adapt_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- double pointer to GainAdaptState
+
+ Outputs:
+ st -- double ponter to GainAdaptState
+
+ Returns:
+ -1 if an error occurs during memory initialization
+ 0 if OK
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Allocates state memory and initializes state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ g_adapt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 gain_adapt_init(GainAdaptState **st)
+{
+ GainAdaptState* s;
+
+ if (st == (GainAdaptState **) NULL)
+ {
+ /* fprintf(stderr, "gain_adapt_init: invalid parameter\n"); */
+ return -1;
+ }
+ *st = NULL;
+
+ /* allocate memory */
+ if ((s = (GainAdaptState *) oscl_malloc(sizeof(GainAdaptState))) == NULL)
+ {
+ /* fprintf(stderr, "gain_adapt_init: can't malloc state structure\n"); */
+ return -1;
+ }
+ gain_adapt_reset(s);
+ *st = s;
+
+ return 0;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gain_adapt_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- double pointer to GainAdaptState
+
+ Outputs:
+ st -- double ponter to GainAdaptState
+
+ Returns:
+ -1 if an error occurs
+ 0 if OK
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Initializes state memory to zero
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ g_adapt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 gain_adapt_reset(GainAdaptState *st)
+{
+ Word16 i;
+
+ if (st == (GainAdaptState *) NULL)
+ {
+ /* fprintf(stderr, "gain_adapt_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ st->onset = 0;
+ st->prev_alpha = 0;
+ st->prev_gc = 0;
+
+ for (i = 0; i < LTPG_MEM_SIZE; i++)
+ {
+ st->ltpg_mem[i] = 0;
+ }
+
+ return 0;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gain_adapt_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- double pointer to GainAdaptState
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ The memory used for state memory is freed
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ g_adapt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void gain_adapt_exit(GainAdaptState **st)
+{
+ if (st == NULL || *st == NULL)
+ return;
+
+ /* deallocate memory */
+ oscl_free(*st);
+ *st = NULL;
+
+ return;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gain_adapt
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- double pointer to GainAdaptState
+ ltpg -- Word16 -- ltp coding gain (log2()), Q13
+ gain_cod -- Word16 -- code gain, Q1
+
+ Outputs:
+ alpha -- Pointer to Word16 -- gain adaptation factor, Q15
+ pOverflow -- Pointer to Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose: calculate pitch/codebook gain adaptation factor alpha
+ (and update the adaptor state)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ g_adapt.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void gain_adapt(
+ GainAdaptState *st, /* i : state struct */
+ Word16 ltpg, /* i : ltp coding gain (log2()), Q13 */
+ Word16 gain_cod, /* i : code gain, Q1 */
+ Word16 *alpha, /* o : gain adaptation factor, Q15 */
+ Flag *pOverflow
+)
+{
+ Word16 adapt; /* adaptdation status; 0, 1, or 2 */
+ Word16 result; /* alpha factor, Q13 */
+ Word16 filt; /* median-filtered LTP coding gain, Q13 */
+ Word16 tmp;
+ Word16 i;
+
+ /* basic adaptation */
+ if (ltpg <= LTP_GAIN_THR1)
+ {
+ adapt = 0;
+ }
+ else
+ {
+ if (ltpg <= LTP_GAIN_THR2)
+ {
+ adapt = 1;
+ }
+ else
+ {
+ adapt = 2;
+ }
+ }
+
+ /*
+ * // onset indicator
+ * if ((cbGain > onFact * cbGainMem[0]) && (cbGain > 100.0))
+ * onset = 8;
+ * else
+ * if (onset)
+ * onset--;
+ */
+ /* tmp = cbGain / onFact; onFact = 2.0; 200 Q1 = 100.0 */
+ tmp = shr_r(gain_cod, 1, pOverflow);
+
+ if ((tmp > st->prev_gc) && (gain_cod > 200))
+ {
+ st->onset = 8;
+ }
+ else
+ {
+ if (st->onset != 0)
+ {
+ st->onset--;
+ }
+ }
+
+ /*
+ * // if onset, increase adaptor state
+ * if (onset && (gainAdapt < 2)) gainAdapt++;
+ */
+ if ((st->onset != 0) && (adapt < 2))
+ {
+ adapt += 1;
+ }
+
+ st->ltpg_mem[0] = ltpg;
+ filt = gmed_n(st->ltpg_mem, 5); /* function result */
+
+ if (adapt == 0)
+ {
+ if (filt > 5443) /* 5443 Q13 = 0.66443... */
+ {
+ result = 0;
+ }
+ else
+ {
+ if (filt < 0)
+ {
+ result = 16384; /* 16384 Q15 = 0.5 */
+ }
+ else
+ { /* result = 0.5 - 0.75257499*filt */
+ /* result (Q15) = 16384 - 24660 * (filt << 2) */
+ filt = shl(filt, 2, pOverflow); /* Q15 */
+ result = mult(24660, filt, pOverflow);
+ result = 16384 - result;
+ }
+ }
+ }
+ else
+ {
+ result = 0;
+ }
+ /*
+ * if (prevAlpha == 0.0) result = 0.5 * (result + prevAlpha);
+ */
+ if (st->prev_alpha == 0)
+ {
+ result = shr(result, 1, pOverflow);
+ }
+
+ /* store the result */
+ *alpha = result;
+
+ /* update adapter state memory */
+ st->prev_alpha = result;
+ st->prev_gc = gain_cod;
+
+ for (i = LTPG_MEM_SIZE - 1; i > 0; i--)
+ {
+ st->ltpg_mem[i] = st->ltpg_mem[i-1];
+ }
+ /* mem[0] is just present for convenience in calling the gmed_n[5]
+ * function above. The memory depth is really LTPG_MEM_SIZE-1.
+ */
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: g_adapt.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, g_adapt.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef g_adapt_h
+#define g_adapt_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+#define LTPG_MEM_SIZE 5 /* number of stored past LTP coding gains + 1 */
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 onset; /* onset state, Q0 */
+ Word16 prev_alpha; /* previous adaptor output, Q15 */
+ Word16 prev_gc; /* previous code gain, Q1 */
+
+ Word16 ltpg_mem[LTPG_MEM_SIZE]; /* LTP coding gain history, Q13 */
+ /* (ltpg_mem[0] not used for history) */
+ } GainAdaptState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 gain_adapt_init(GainAdaptState **st);
+ /* initialize one instance of the gain adaptor
+ Stores pointer to state struct in *st. This pointer has to
+ be passed to gain_adapt and gain_adapt_update in each call.
+ returns 0 on success
+ */
+
+ Word16 gain_adapt_reset(GainAdaptState *st);
+ /* reset of gain adaptor state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+
+ void gain_adapt_exit(GainAdaptState **st);
+ /* de-initialize gain adaptor state (i.e. free state struct)
+ stores NULL in *st
+ */
+
+ /*************************************************************************
+ *
+ * Function: gain_adapt()
+ * Purpose: calculate pitch/codebook gain adaptation factor alpha
+ * (and update the adaptor state)
+ *
+ **************************************************************************
+ */
+ void gain_adapt(
+ GainAdaptState *st, /* i : state struct */
+ Word16 ltpg, /* i : ltp coding gain (log2()), Q */
+ Word16 gain_cod, /* i : code gain, Q13 */
+ Word16 *alpha, /* o : gain adaptation factor, Q15 */
+ Flag *pOverflow /* o : overflow indicator */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: g_code.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "g_code.h"
+#include "cnst.h"
+#include "basic_op.h"
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: G_code
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ xn2[] = target vector (Word16)
+ y2[] = filtered innovation vector
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the innovative gain calculation resulted in overflow
+
+ Returns:
+ gain = Gain of Innovation code (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes the innovative codebook gain.
+
+ The innovative codebook gain is given by
+ g = <x[], y[]> / <y[], y[]>
+
+ where x[] is the target vector, y[] is the filtered innovative codevector,
+ and <> denotes dot product.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] g_code.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 G_code ( // out : Gain of innovation code
+ Word16 xn2[], // in : target vector
+ Word16 y2[] // in : filtered innovation vector
+)
+{
+ Word16 i;
+ Word16 xy, yy, exp_xy, exp_yy, gain;
+ Word16 scal_y2[L_SUBFR];
+ Word32 s;
+
+// The original ETSI implementation uses a global overflow flag. However in
+// actual implementation a pointer to Overflow flag is passed into the
+// function for access by the low level math functions.
+
+ // Scale down Y[] by 2 to avoid overflow
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ scal_y2[i] = shr (y2[i], 1);
+ }
+
+ // Compute scalar product <X[],Y[]>
+
+ s = 1L; // Avoid case of all zeros
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ s = L_mac (s, xn2[i], scal_y2[i]);
+ }
+ exp_xy = norm_l (s);
+ xy = extract_h (L_shl (s, exp_xy));
+
+ // If (xy < 0) gain = 0
+
+ if (xy <= 0)
+ return ((Word16) 0);
+
+ // Compute scalar product <Y[],Y[]>
+
+ s = 0L;
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ s = L_mac (s, scal_y2[i], scal_y2[i]);
+ }
+ exp_yy = norm_l (s);
+ yy = extract_h (L_shl (s, exp_yy));
+
+ // compute gain = xy/yy
+
+ xy = shr (xy, 1); // Be sure xy < yy
+ gain = div_s (xy, yy);
+
+ // Denormalization of division
+ i = add (exp_xy, 5); // 15-1+9-18 = 5
+ i = sub (i, exp_yy);
+
+ gain = shl (shr (gain, i), 1); // Q0 -> Q1/
+
+ return (gain);
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word16 G_code( /* o : Gain of innovation code */
+ Word16 xn2[], /* i : target vector */
+ Word16 y2[], /* i : filtered innovation vector */
+ Flag *pOverflow /* i/o : overflow flag */
+)
+{
+ Word16 i;
+ Word16 xy, yy, exp_xy, exp_yy, gain;
+ Word32 s;
+
+ Word16 *p_xn2 = xn2;
+ Word16 *p_y2 = y2;
+ Word16 temp;
+ Word32 temp2;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ /* Compute scalar product <X[],Y[]> */
+ s = 0;
+
+ for (i = (L_SUBFR >> 2); i != 0 ; i--)
+ {
+ temp2 = (Word32)(*(p_y2++) >> 1);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_xn2++), temp2, s);
+ temp2 = (Word32)(*(p_y2++) >> 1);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_xn2++), temp2, s);
+ temp2 = (Word32)(*(p_y2++) >> 1);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_xn2++), temp2, s);
+ temp2 = (Word32)(*(p_y2++) >> 1);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_xn2++), temp2, s);
+ }
+ s <<= 1;
+ exp_xy = norm_l(s + 1); /* Avoid case of all zeros, add 1 */
+
+ if (exp_xy < 17) /* extra right shift to be sure xy < yy */
+ {
+ xy = (Word16)(s >> (17 - exp_xy));
+ }
+ else
+ {
+ xy = (Word16)(s << (exp_xy - 17));
+ }
+
+ /* If (xy < 0) gain = 0 */
+
+ if (xy <= 0)
+ {
+ return ((Word16) 0);
+ }
+
+ /* Compute scalar product <Y[],Y[]> */
+
+ s = 0L;
+ p_y2 = y2;
+
+ for (i = (L_SUBFR >> 1); i != 0 ; i--)
+ {
+ temp = *(p_y2++) >> 1;
+ s += ((Word32) temp * temp) >> 2;
+ temp = *(p_y2++) >> 1;
+ s += ((Word32) temp * temp) >> 2;
+ }
+ s <<= 3;
+ exp_yy = norm_l(s);
+
+ if (exp_yy < 16)
+ {
+ yy = (Word16)(s >> (16 - exp_yy));
+ }
+ else
+ {
+ yy = (Word16)(s << (exp_yy - 16));
+ }
+
+ gain = div_s(xy, yy);
+
+ /* Denormalization of division */
+ i = exp_xy + 5; /* 15-1+9-18 = 5 */
+ i -= exp_yy;
+
+ // gain = shl (shr (gain, i), 1); /* Q0 -> Q1 */
+
+ if (i > 1)
+ {
+ gain >>= i - 1;
+ }
+ else
+ {
+ gain <<= 1 - i;
+ }
+
+
+ return (gain);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: g_code.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the G_code() function.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef G_CODE_H
+#define G_CODE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 G_code( /* o : Gain of innovation code */
+ Word16 xn2[], /* i : target vector */
+ Word16 y2[], /* i : filtered innovation vector */
+ Flag *pOverflow /* i/o : overflow flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _G_CODE_H */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: g_pitch.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "g_pitch.h"
+#include "mode.h"
+#include "cnst.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: G_pitch
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ mode = AMR mode (enum Mode)
+ xn = pointer to pitch target buffer (Word16)
+ y1 = pointer to filtered adaptive codebook buffer (Word16)
+ g_coeff = pointer to buffer of correlations needed for gain quantization
+ (Word16)
+ L_subfr = length of subframe (Word16)
+ pOverflow = pointer to overflow flag (Flag)
+
+ Outputs:
+ g_coeff contains the mantissa and exponent of the two dot products.
+ pOverflow -> 1 if an overflow occurs
+
+ Returns:
+ gain = ratio of dot products.(Word16)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes the pitch (adaptive codebook) gain. The adaptive
+ codebook gain is given by
+
+ g = <x[], y[]> / <y[], y[]>
+
+ where: x[] is the target vector
+ y[] is the filtered adaptive codevector
+ <> denotes dot product.
+
+ The gain is limited to the range [0,1.2] (=0..19661 Q14)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ g_pitch.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 G_pitch ( // o : Gain of pitch lag saturated to 1.2
+ enum Mode mode, // i : AMR mode
+ Word16 xn[], // i : Pitch target.
+ Word16 y1[], // i : Filtered adaptive codebook.
+ Word16 g_coeff[], // i : Correlations need for gain quantization
+ Word16 L_subfr // i : Length of subframe.
+)
+{
+ Word16 i;
+ Word16 xy, yy, exp_xy, exp_yy, gain;
+ Word32 s;
+
+ Word16 scaled_y1[L_SUBFR]; // Usually dynamic allocation of (L_subfr)
+
+ // divide "y1[]" by 4 to avoid overflow
+
+// The reference ETSI code uses a global overflow Flag. However in the actual
+// implementation a pointer to the overflow flag is passed into the function.
+
+ for (i = 0; i < L_subfr; i++)
+ {
+ scaled_y1[i] = shr (y1[i], 2);
+ }
+
+ // Compute scalar product <y1[],y1[]>
+
+ // Q12 scaling / MR122
+ Overflow = 0;
+ s = 1L; // Avoid case of all zeros
+ for (i = 0; i < L_subfr; i++)
+ {
+ s = L_mac (s, y1[i], y1[i]);
+ }
+ if (Overflow == 0) // Test for overflow
+ {
+ exp_yy = norm_l (s);
+ yy = pv_round (L_shl (s, exp_yy));
+ }
+ else
+ {
+ s = 1L; // Avoid case of all zeros
+ for (i = 0; i < L_subfr; i++)
+ {
+ s = L_mac (s, scaled_y1[i], scaled_y1[i]);
+ }
+ exp_yy = norm_l (s);
+ yy = pv_round (L_shl (s, exp_yy));
+ exp_yy = sub (exp_yy, 4);
+ }
+
+ // Compute scalar product <xn[],y1[]>
+
+ Overflow = 0;
+ s = 1L; // Avoid case of all zeros
+
+ for (i = 0; i < L_subfr; i++)
+ {
+ s = L_mac(s, xn[i], y1[i]);
+ }
+ if (Overflow == 0)
+ {
+ exp_xy = norm_l (s);
+ xy = pv_round (L_shl (s, exp_xy));
+ }
+ else
+ {
+ s = 1L; // Avoid case of all zeros
+ for (i = 0; i < L_subfr; i++)
+ {
+ s = L_mac (s, xn[i], scaled_y1[i]);
+ }
+ exp_xy = norm_l (s);
+ xy = pv_round (L_shl (s, exp_xy));
+ exp_xy = sub (exp_xy, 2);
+ }
+
+ g_coeff[0] = yy;
+ g_coeff[1] = sub (15, exp_yy);
+ g_coeff[2] = xy;
+ g_coeff[3] = sub (15, exp_xy);
+
+ // If (xy < 4) gain = 0
+
+ i = sub (xy, 4);
+
+ if (i < 0)
+ return ((Word16) 0);
+
+ // compute gain = xy/yy
+
+ xy = shr (xy, 1); // Be sure xy < yy
+ gain = div_s (xy, yy);
+
+ i = sub (exp_xy, exp_yy); // Denormalization of division
+ gain = shr (gain, i);
+
+ // if(gain >1.2) gain = 1.2
+
+ if (sub (gain, 19661) > 0)
+ {
+ gain = 19661;
+ }
+
+ if (sub(mode, MR122) == 0)
+ {
+ // clear 2 LSBits
+ gain = gain & 0xfffC;
+ }
+
+ return (gain);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 G_pitch( /* o : Gain of pitch lag saturated to 1.2 */
+ enum Mode mode, /* i : AMR mode */
+ Word16 xn[], /* i : Pitch target. Q0 */
+ Word16 y1[], /* i : Filtered adaptive codebook. Q12 */
+ Word16 g_coeff[], /* i : Correlations need for gain quantization */
+ Word16 L_subfr, /* i : Length of subframe. */
+ Flag *pOverflow /* i/o : Overflow flag */
+)
+{
+
+ Word16 i;
+ Word16 xy;
+ Word16 yy;
+ Word16 exp_xy;
+ Word16 exp_yy;
+ Word16 gain;
+ Word16 tmp;
+ Word32 s;
+ Word32 s1;
+ Word32 L_temp; /* Use this as an intermediate value */
+ Word16 *p_xn = &xn[0];
+ Word16 *p_y1 = &y1[0];
+
+ /* Compute scalar product <y1[],y1[]> */
+
+ /* Q12 scaling / MR122 */
+ *pOverflow = 0;
+ s = 0;
+
+ for (i = L_subfr >> 2; i != 0; i--)
+ {
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_y1), (Word32) * (p_y1), s);
+ p_y1++;
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_y1), (Word32) * (p_y1), s);
+ p_y1++;
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_y1), (Word32) * (p_y1), s);
+ p_y1++;
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_y1), (Word32) * (p_y1), s);
+ p_y1++;
+ }
+ if ((s >= 0) & (s < 0x40000000))
+ {
+ s <<= 1;
+ s += 1; /* Avoid case of all zeros */
+
+ exp_yy = norm_l(s); /* Note 0<=exp_yy <= 31 */
+ L_temp = s << exp_yy;
+ yy = pv_round(L_temp, pOverflow);
+ }
+ else
+ {
+ s = 0; /* Avoid case of all zeros */
+ p_y1 = &y1[0];
+ for (i = (L_subfr >> 1); i != 0; i--)
+ {
+ tmp = *(p_y1++) >> 2;
+ s = amrnb_fxp_mac_16_by_16bb((Word32) tmp, (Word32) tmp, s);
+ tmp = *(p_y1++) >> 2;
+ s = amrnb_fxp_mac_16_by_16bb((Word32) tmp, (Word32) tmp, s);
+ }
+
+ s <<= 1;
+ s += 1; /* Avoid case of all zeros */
+
+ exp_yy = norm_l(s);
+ L_temp = s << exp_yy;
+ yy = pv_round(L_temp, pOverflow);
+ exp_yy = exp_yy - 4;
+
+ }
+
+ /* Compute scalar product <xn[],y1[]> */
+
+ s = 0;
+ p_y1 = &y1[0];
+ *pOverflow = 0;
+
+ for (i = L_subfr; i != 0; i--)
+ {
+ L_temp = ((Word32) * (p_xn++) * *(p_y1++));
+ s1 = s;
+ s = s1 + L_temp;
+
+ if ((s1 ^ L_temp) > 0)
+ {
+ if ((s1 ^ s) < 0)
+ {
+ *pOverflow = 1;
+ break;
+ }
+ }
+ }
+
+ if (!(*pOverflow))
+ {
+
+ s <<= 1;
+ s += 1; /* Avoid case of all zeros */
+
+ exp_xy = norm_l(s); /* Note 0<=exp_yy <= 31 */
+ L_temp = s << exp_xy;
+ xy = pv_round(L_temp, pOverflow);
+ }
+ else
+ {
+ s = 0; /* re-initialize calculations */
+ p_y1 = &y1[0];
+ p_xn = &xn[0];
+
+ for (i = (L_subfr >> 2); i != 0; i--)
+ {
+ L_temp = (Word32)(*(p_y1++) >> 2);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_xn++), L_temp, s);
+ L_temp = (Word32)(*(p_y1++) >> 2);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_xn++), L_temp, s);
+ L_temp = (Word32)(*(p_y1++) >> 2);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_xn++), L_temp, s);
+ L_temp = (Word32)(*(p_y1++) >> 2);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (p_xn++), L_temp, s);
+ }
+
+ s <<= 1;
+ s += 1; /* Avoid case of all zeros */
+
+ exp_xy = norm_l(s);
+ L_temp = s << exp_xy;
+ xy = pv_round(L_temp, pOverflow);
+ exp_xy = exp_xy - 4;
+
+ }
+
+ g_coeff[0] = yy;
+ g_coeff[1] = 15 - exp_yy;
+ g_coeff[2] = xy;
+ g_coeff[3] = 15 - exp_xy;
+
+ /* If (xy < 4) gain = 0 */
+ if (xy < 4)
+ {
+ return ((Word16) 0);
+ }
+
+ /* compute gain = xy/yy */
+ /* Be sure xy < yy */
+
+ xy = xy >> 1;
+
+ gain = div_s(xy, yy);
+
+ i = exp_xy - exp_yy; /* Denormalization of division */
+
+ gain = shr(gain, i, pOverflow);
+
+
+ /* if(gain >1.2) gain = 1.2 */
+ if (gain > 19661)
+ {
+ gain = 19661;
+ }
+
+ if (mode == MR122)
+ {
+ /* clear 2 LSBits */
+ gain = gain & 0xfffC;
+ }
+
+ return(gain);
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: g_pitch.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the G_pitch() function.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef G_PITCH_H
+#define G_PITCH_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "mode.h"
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 G_pitch( /* o : Gain of pitch lag saturated to 1.2 */
+ enum Mode mode, /* i : AMR mode */
+ Word16 xn[], /* i : Pitch target. */
+ Word16 y1[], /* i : Filtered adaptive codebook. */
+ Word16 g_coeff[], /* i : Correlations need for gain quantization */
+ Word16 L_subfr, /* i : Length of subframe. */
+ Flag *pOverflow /* i/o : Overflow flag */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _G_PITCH_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: gain_q.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Quantazation of gains
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "gain_q.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "qua_gain.h"
+#include "cnst.h"
+#include "mode.h"
+#include "g_code.h"
+#include "q_gain_c.h"
+#include "calc_en.h"
+#include "qgain795.h"
+#include "qgain475.h"
+#include "set_zero.h"
+#include "oscl_mem.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NPRED 4 /* number of prediction taps */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gainQuant_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- double pointer to gainQuantState
+
+ Outputs:
+ st -- double ponter to gainQuantState
+
+ Returns:
+ -1 if an error occurs during memory initialization
+ 0 if OK
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Allocates state memory and initializes state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ gain_q.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 gainQuant_init(gainQuantState **state)
+{
+ gainQuantState* s;
+
+ if (state == (gainQuantState **) NULL)
+ {
+ /* fprintf(stderr, "gainQuant_init: invalid parameter\n"); */
+ return -1;
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (gainQuantState *) oscl_malloc(sizeof(gainQuantState))) == NULL)
+ {
+ /* fprintf(stderr, "gainQuant_init: can not malloc state structure\n"); */
+ return -1;
+ }
+
+ s->gain_idx_ptr = NULL;
+
+ s->adaptSt = NULL;
+
+ /* Init sub states */
+ if (gc_pred_reset(&s->gc_predSt)
+ || gc_pred_reset(&s->gc_predUnqSt)
+ || gain_adapt_init(&s->adaptSt))
+ {
+ gainQuant_exit(&s);
+ return -1;
+ }
+
+ gainQuant_reset(s);
+ *state = s;
+
+ return 0;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gainQuant_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- double pointer to gainQuantState
+
+ Outputs:
+ st -- double ponter to gainQuantState
+
+ Returns:
+ -1 if an error occurs
+ 0 if OK
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Initializes state memory to zero
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ gain_q.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 gainQuant_reset(gainQuantState *state)
+{
+
+ if (state == (gainQuantState *) NULL)
+ {
+ /* fprintf(stderr, "gainQuant_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ state->sf0_exp_gcode0 = 0;
+ state->sf0_frac_gcode0 = 0;
+ state->sf0_exp_target_en = 0;
+ state->sf0_frac_target_en = 0;
+
+
+ oscl_memset((void *)state->sf0_exp_coeff, 0, 5*sizeof(*state->sf0_exp_coeff));
+ oscl_memset((void *)state->sf0_frac_coeff, 0, 5*sizeof(*state->sf0_frac_coeff));
+
+ state->gain_idx_ptr = NULL;
+
+ gc_pred_reset(&(state->gc_predSt));
+ gc_pred_reset(&(state->gc_predUnqSt));
+ gain_adapt_reset(state->adaptSt);
+
+ return 0;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gainQuant_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- double pointer to gainQuantState
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ The memory used for state memory is freed
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ gain_q.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void gainQuant_exit(gainQuantState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ gain_adapt_exit(&(*state)->adaptSt);
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: gainQuant
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to gainQuantState
+ mode -- enum Mode -- coder mode
+ res -- Word16 array -- LP residual, Q0
+ exc -- Word16 array -- LTP excitation (unfiltered), Q0
+ code -- Word16 array -- CB innovation (unfiltered), Q13
+ (unsharpened for MR475)
+ xn -- Word16 array -- Target vector.
+ xn2 -- Word16 array -- Target vector.
+ y1 -- Word16 array -- Adaptive codebook.
+ Y2 -- Word16 array -- Filtered innovative vector.
+ g_coeff -- Word16 array -- Correlations <xn y1> <y1 y1>
+ Compute in G_pitch().
+
+ even_subframe -- Word16 -- even subframe indicator flag
+ gp_limit -- Word16 -- pitch gain limit
+ gain_pit -- Word16 Pointer -- Pitch gain.
+
+ Outputs:
+ st -- pointer to gainQuantState
+ sf0_gain_pit -- Word16 Pointer -- Pitch gain sf 0. MR475
+ sf0_gain_cod -- Word16 Pointer -- Code gain sf 0. MR475
+ gain_pit -- Word16 Pointer -- Pitch gain.
+ gain_cod -- Word16 Pointer -- Code gain.
+ MR475: gain_* unquantized in even
+ subframes, quantized otherwise
+
+ anap -- Word16 Double Pointer -- Index of quantization
+
+ pOverflow -- Flag Pointer -- overflow indicator
+
+ Returns:
+ Zero
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Quantazation of gains
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ gain_q.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+
+
+void gainQuant(
+ gainQuantState *st, /* i/o : State struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 res[], /* i : LP residual, Q0 */
+ Word16 exc[], /* i : LTP excitation (unfiltered), Q0 */
+ Word16 code[], /* i : CB innovation (unfiltered), Q13 */
+ /* (unsharpened for MR475) */
+ Word16 xn[], /* i : Target vector. */
+ Word16 xn2[], /* i : Target vector. */
+ Word16 y1[], /* i : Adaptive codebook. */
+ Word16 Y2[], /* i : Filtered innovative vector. */
+ Word16 g_coeff[], /* i : Correlations <xn y1> <y1 y1> */
+ /* Compute in G_pitch(). */
+ Word16 even_subframe, /* i : even subframe indicator flag */
+ Word16 gp_limit, /* i : pitch gain limit */
+ Word16 *sf0_gain_pit, /* o : Pitch gain sf 0. MR475 */
+ Word16 *sf0_gain_cod, /* o : Code gain sf 0. MR475 */
+ Word16 *gain_pit, /* i/o : Pitch gain. */
+ Word16 *gain_cod, /* o : Code gain. */
+ /* MR475: gain_* unquantized in even */
+ /* subframes, quantized otherwise */
+ Word16 **anap, /* o : Index of quantization */
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of tbl ptrs */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ Word16 exp_gcode0;
+ Word16 frac_gcode0;
+ Word16 qua_ener_MR122;
+ Word16 qua_ener;
+ Word16 frac_coeff[5];
+ Word16 exp_coeff[5];
+ Word16 exp_en;
+ Word16 frac_en;
+ Word16 cod_gain_exp;
+ Word16 cod_gain_frac;
+ Word16 temp;
+
+ if (mode == MR475)
+ {
+ if (even_subframe != 0)
+ {
+ /* save position in output parameter stream and current
+ state of codebook gain predictor */
+ st->gain_idx_ptr = (*anap)++;
+
+// gc_pred_copy(&(st->gc_predSt), &(st->gc_predUnqSt));
+
+ oscl_memcpy(st->gc_predUnqSt.past_qua_en,
+ st->gc_predSt.past_qua_en,
+ NPRED*sizeof(Word16));
+ oscl_memcpy(st->gc_predUnqSt.past_qua_en_MR122,
+ st->gc_predSt.past_qua_en_MR122,
+ NPRED*sizeof(Word16));
+
+
+ /* predict codebook gain (using "unquantized" predictor)*/
+ /* (note that code[] is unsharpened in MR475) */
+ gc_pred(
+ &(st->gc_predUnqSt),
+ mode,
+ code,
+ &st->sf0_exp_gcode0,
+ &st->sf0_frac_gcode0,
+ &exp_en,
+ &frac_en,
+ pOverflow);
+
+ /* calculate energy coefficients for quantization
+ and store them in state structure (will be used
+ in next subframe when real quantizer is run) */
+ calc_filt_energies(
+ mode,
+ xn,
+ xn2,
+ y1,
+ Y2,
+ g_coeff,
+ st->sf0_frac_coeff,
+ st->sf0_exp_coeff,
+ &cod_gain_frac,
+ &cod_gain_exp,
+ pOverflow);
+
+ /* store optimum codebook gain (Q1) */
+ temp = cod_gain_exp + 1;
+
+ *gain_cod =
+ shl(
+ cod_gain_frac,
+ temp,
+ pOverflow);
+
+ calc_target_energy(
+ xn,
+ &st->sf0_exp_target_en,
+ &st->sf0_frac_target_en,
+ pOverflow);
+
+ /* calculate optimum codebook gain and update
+ "unquantized" predictor */
+ MR475_update_unq_pred(
+ &(st->gc_predUnqSt),
+ st->sf0_exp_gcode0,
+ st->sf0_frac_gcode0,
+ cod_gain_exp,
+ cod_gain_frac,
+ pOverflow);
+
+ /* the real quantizer is not run here... */
+ }
+ else
+ {
+ /* predict codebook gain (using "unquantized" predictor) */
+ /* (note that code[] is unsharpened in MR475) */
+ gc_pred(
+ &(st->gc_predUnqSt),
+ mode,
+ code,
+ &exp_gcode0,
+ &frac_gcode0,
+ &exp_en,
+ &frac_en,
+ pOverflow);
+
+ /* calculate energy coefficients for quantization */
+ calc_filt_energies(
+ mode,
+ xn,
+ xn2,
+ y1,
+ Y2,
+ g_coeff,
+ frac_coeff,
+ exp_coeff,
+ &cod_gain_frac,
+ &cod_gain_exp,
+ pOverflow);
+
+ calc_target_energy(
+ xn,
+ &exp_en,
+ &frac_en,
+ pOverflow);
+
+ /* run real (4-dim) quantizer and update real gain predictor */
+ *st->gain_idx_ptr =
+ MR475_gain_quant(
+ &(st->gc_predSt),
+ st->sf0_exp_gcode0,
+ st->sf0_frac_gcode0,
+ st->sf0_exp_coeff,
+ st->sf0_frac_coeff,
+ st->sf0_exp_target_en,
+ st->sf0_frac_target_en,
+ code,
+ exp_gcode0,
+ frac_gcode0,
+ exp_coeff,
+ frac_coeff,
+ exp_en,
+ frac_en,
+ gp_limit,
+ sf0_gain_pit,
+ sf0_gain_cod,
+ gain_pit,
+ gain_cod,
+ pOverflow);
+ }
+ }
+ else
+ {
+ /*-------------------------------------------------------------------*
+ * predict codebook gain and quantize *
+ * (also compute normalized CB innovation energy for MR795) *
+ *-------------------------------------------------------------------*/
+ gc_pred(
+ &(st->gc_predSt),
+ mode,
+ code,
+ &exp_gcode0,
+ &frac_gcode0,
+ &exp_en,
+ &frac_en,
+ pOverflow);
+
+ if (mode == MR122)
+ {
+ *gain_cod =
+ G_code(
+ xn2,
+ Y2,
+ pOverflow);
+
+ *(*anap)++ =
+ q_gain_code(
+ mode,
+ exp_gcode0,
+ frac_gcode0,
+ gain_cod,
+ &qua_ener_MR122,
+ &qua_ener,
+ common_amr_tbls->qua_gain_code_ptr,
+ pOverflow);
+ }
+ else
+ {
+ /* calculate energy coefficients for quantization */
+ calc_filt_energies(
+ mode,
+ xn,
+ xn2,
+ y1,
+ Y2,
+ g_coeff,
+ frac_coeff,
+ exp_coeff,
+ &cod_gain_frac,
+ &cod_gain_exp,
+ pOverflow);
+
+ if (mode == MR795)
+ {
+ MR795_gain_quant(
+ st->adaptSt,
+ res,
+ exc,
+ code,
+ frac_coeff,
+ exp_coeff,
+ exp_en,
+ frac_en,
+ exp_gcode0,
+ frac_gcode0,
+ L_SUBFR,
+ cod_gain_frac,
+ cod_gain_exp,
+ gp_limit,
+ gain_pit,
+ gain_cod,
+ &qua_ener_MR122,
+ &qua_ener,
+ anap,
+ common_amr_tbls,
+ pOverflow);
+ }
+ else
+ {
+ *(*anap)++ =
+ Qua_gain(
+ mode,
+ exp_gcode0,
+ frac_gcode0,
+ frac_coeff,
+ exp_coeff,
+ gp_limit,
+ gain_pit,
+ gain_cod,
+ &qua_ener_MR122,
+ &qua_ener,
+ common_amr_tbls,
+ pOverflow);
+ }
+ }
+
+ /*------------------------------------------------------------------*
+ * update table of past quantized energies *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * st->past_qua_en(Q10) = 20 * Log10(qua_gain_code) / constant *
+ * = Log2(qua_gain_code) *
+ * = qua_ener *
+ * constant = 20*Log10(2) *
+ *------------------------------------------------------------------*/
+ gc_pred_update(
+ &(st->gc_predSt),
+ qua_ener_MR122,
+ qua_ener);
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: gain_q.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, gain_q.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef gain_q_h
+#define gain_q_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "gc_pred.h"
+#include "g_adapt.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 sf0_exp_gcode0;
+ Word16 sf0_frac_gcode0;
+ Word16 sf0_exp_target_en;
+ Word16 sf0_frac_target_en;
+ Word16 sf0_exp_coeff[5];
+ Word16 sf0_frac_coeff[5];
+ Word16 *gain_idx_ptr;
+
+ gc_predState gc_predSt;
+ gc_predState gc_predUnqSt;
+ GainAdaptState *adaptSt;
+ } gainQuantState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 gainQuant_init(gainQuantState **st);
+ /* initialize one instance of the pre processing state.
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to gainQuant in each call.
+ returns 0 on success
+ */
+ Word16 gainQuant_reset(gainQuantState *st);
+ /* reset of pre processing state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+ void gainQuant_exit(gainQuantState **st);
+ /* de-initialize pre processing state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ void gainQuant(
+ gainQuantState *st, /* i/o : State struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 res[], /* i : LP residual, Q0 */
+ Word16 exc[], /* i : LTP excitation (unfiltered), Q0 */
+ Word16 code[], /* i : CB innovation (unfiltered), Q13 */
+ /* (unsharpened for MR475) */
+ Word16 xn[], /* i : Target vector. */
+ Word16 xn2[], /* i : Target vector. */
+ Word16 y1[], /* i : Adaptive codebook. */
+ Word16 Y2[], /* i : Filtered innovative vector. */
+ Word16 g_coeff[], /* i : Correlations <xn y1> <y1 y1> */
+ /* Compute in G_pitch(). */
+ Word16 even_subframe, /* i : even subframe indicator flag */
+ Word16 gp_limit, /* i : pitch gain limit */
+ Word16 *sf0_gain_pit, /* o : Pitch gain sf 0. MR475 */
+ Word16 *sf0_gain_cod, /* o : Code gain sf 0. MR475 */
+ Word16 *gain_pit, /* i/o : Pitch gain. */
+ Word16 *gain_cod, /* o : Code gain. */
+ /* MR475: gain_* unquantized in even */
+ /* subframes, quantized otherwise */
+ Word16 **anap, /* o : Index of quantization */
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of tbl ptrs */
+ Flag *pOverflow /* o : overflow indicator */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* gain_q_h */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: gsmamr_enc.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This header contains all the necessary information needed to use the
+ GSM AMR encoder library.
+
+------------------------------------------------------------------------------
+*/
+#ifndef _GSMAMR_ENC_H_
+#define _GSMAMR_ENC_H_
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "gsm_amr_typedefs.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ----------------------------------------------------------------------------*/
+ /* Number of 13-bit linear PCM samples per 20 ms frame */
+ /* L_FRAME = (8 kHz) * (20 msec) = 160 samples */
+#define L_FRAME 160
+
+ /* Output format types */
+#define AMR_TX_WMF 0
+#define AMR_TX_IF2 1
+#define AMR_TX_ETS 2
+#define AMR_TX_IETF 3
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ enum Mode
+ {
+ MR475 = 0,/* 4.75 kbps */
+ MR515, /* 5.15 kbps */
+ MR59, /* 5.90 kbps */
+ MR67, /* 6.70 kbps */
+ MR74, /* 7.40 kbps */
+ MR795, /* 7.95 kbps */
+ MR102, /* 10.2 kbps */
+ MR122, /* 12.2 kbps */
+ MRDTX, /* DTX */
+ N_MODES /* Not Used */
+ };
+
+ enum Frame_Type_3GPP
+ {
+ AMR_475 = 0, /* 4.75 kbps */
+ AMR_515, /* 5.15 kbps */
+ AMR_59, /* 5.9 kbps */
+ AMR_67, /* 6.7 kbps */
+ AMR_74, /* 7.4 kbps */
+ AMR_795, /* 7.95 kbps */
+ AMR_102, /* 10.2 kbps */
+ AMR_122, /* 12.2 kbps */
+ AMR_SID, /* GSM AMR DTX */
+ GSM_EFR_SID, /* GSM EFR DTX */
+ TDMA_EFR_SID, /* TDMA EFR DTX */
+ PDC_EFR_SID, /* PDC EFR DTX */
+ FOR_FUTURE_USE1, /* Unused 1 */
+ FOR_FUTURE_USE2, /* Unused 2 */
+ FOR_FUTURE_USE3, /* Unused 3 */
+ AMR_NO_DATA /* No data */
+ };
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ----------------------------------------------------------------------------*/
+ /* AMREncodeInit initializes the GSM AMR Encoder library by calling
+ * GSMInitEncode and sid_sync_init. If initialization was successful,
+ * init_status is set to zero, otherwise, it is set to -1.
+ */
+ int AMREncodeInit(
+ void **pEncStructure,
+ void **pSidSyncStructure,
+ Flag dtx_enable);
+
+ /* AMREncodeReset resets the state memory used by the Encoder and SID sync
+ * function. If reset was successful, reset_status is set to zero, otherwise,
+ * it is set to -1.
+ */
+ int AMREncodeReset(
+ void *pEncStructure,
+ void *pSidSyncStructure);
+
+ /* AMREncodeExit frees up the state memory used by the Encoder and SID
+ * synchronization function.
+ */
+ void AMREncodeExit(
+ void **pEncStructure,
+ void **pSidSyncStructure);
+
+ /*
+ * AMREncode is the entry point to the ETS Encoder library that encodes the raw
+ * data speech bits and converts the encoded bitstream into either an IF2-
+ * formatted bitstream, WMF-formatted bitstream, or ETS-formatted bitstream,
+ * depending on the the value of output_format. A zero is returned on success.
+ */
+ int AMREncode(
+ void *pEncState,
+ void *pSidSyncState,
+ enum Mode mode,
+ Word16 *pEncInput,
+ unsigned char *pEncOutput,
+ enum Frame_Type_3GPP *p3gpp_frame_type,
+ Word16 output_format
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _GSMAMR_DEC_H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+#ifndef GSMAMR_ENC_H_INCLUDED
+#include "gsmamr_enc.h"
+#endif
+
+#ifndef GSMAMR_ENCODER_WRAPPER_H_INCLUDED
+#include "gsmamr_encoder_wrapper.h"
+#endif
+
+#ifndef OSCL_DLL_H_INCLUDED
+#include "oscl_dll.h"
+#endif
+
+// Define entry point for this DLL
+OSCL_DLL_ENTRY_POINT_DEFAULT()
+
+//----------------------------------------------------------------------------
+// CONSTANTS
+//----------------------------------------------------------------------------
+
+// Number of samples per frame
+#define KGAMR_NUM_SAMPLES_PER_FRAME 160
+
+// Default mode
+#define KDFLT_GAMR_MODE MR475
+
+// Default bits per sample for input audio
+#define KDFLT_GAMR_BITS_PER_SAMPLE 16
+
+// Default sampling rate for input audio (in Hz)
+#define KDFLT_GAMR_SAMPLING_RATE 8000
+
+// Default input clock rate for input audio (in ticks/sec)
+#define KDFLT_GAMR_CLOCK_RATE 8000
+
+// Default number of channels
+#define KDFLT_GAMR_NUM_CHANNELS 1
+
+// length of uncompressed audio frame in bytes
+// Formula: (num_samples_per_frame * bits_per_sample) / num_bits_per_byte
+#define PV_GSM_AMR_20_MSEC_SIZE \
+ ((KGAMR_NUM_SAMPLES_PER_FRAME * KDFLT_GAMR_BITS_PER_SAMPLE) / 8)
+
+
+///////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF
+CPvGsmAmrEncoder::CPvGsmAmrEncoder()
+{
+ // initialize member data to default values
+ iEncState = NULL;
+ iSidState = NULL;
+ iGsmAmrMode = (GSM_AMR_MODES)KDFLT_GAMR_MODE;
+ iLastModeUsed = 0;
+ iBitStreamFormat = AMR_TX_WMF;
+ iNumSamplesPerFrame = KGAMR_NUM_SAMPLES_PER_FRAME;
+}
+///////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF CPvGsmAmrEncoder::~CPvGsmAmrEncoder()
+{
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF int32 CPvGsmAmrEncoder::InitializeEncoder(int32 aMaxOutputBufferSize, TEncodeProperties* aProps)
+{
+ if (aProps == NULL)
+ {
+ // use default parameters
+ TEncodeProperties dfltProps;
+ aProps = &dfltProps;
+ dfltProps.iInBitsPerSample = KDFLT_GAMR_BITS_PER_SAMPLE;
+ dfltProps.iInSamplingRate = KDFLT_GAMR_SAMPLING_RATE;
+ dfltProps.iInClockRate = dfltProps.iInSamplingRate;
+ dfltProps.iInNumChannels = KDFLT_GAMR_NUM_CHANNELS;
+ iGsmAmrMode = (GSM_AMR_MODES)KDFLT_GAMR_MODE;
+ iBitStreamFormat = AMR_TX_WMF;
+ }
+ else
+ {
+ // check first if input parameters are valid
+ if ((IsModeValid(aProps->iMode) == false) ||
+ (aProps->iInBitsPerSample == 0) ||
+ (aProps->iInClockRate == 0) ||
+ (aProps->iInSamplingRate == 0) ||
+ (aProps->iInNumChannels == 0))
+ {
+ return GSMAMR_ENC_INVALID_PARAM;
+ }
+ // set AMR mode (bits per second)
+ iGsmAmrMode = (GSM_AMR_MODES)aProps->iMode;
+ if (aProps->iBitStreamFormat == AMR_TX_WMF)
+ {
+ iBitStreamFormat = AMR_TX_WMF;
+ }
+ else if (aProps->iBitStreamFormat == AMR_TX_IF2)
+ {
+ iBitStreamFormat = AMR_TX_IF2;
+ }
+ else if (aProps->iBitStreamFormat == AMR_TX_IETF)
+ {
+ iBitStreamFormat = AMR_TX_IETF;
+ }
+ else
+ {
+ iBitStreamFormat = AMR_TX_ETS;
+ }
+ }
+
+ iBytesPerSample = aProps->iInBitsPerSample / 8;
+
+ // set maximum buffer size for encoded data
+ iMaxOutputBufferSize = aMaxOutputBufferSize;
+ // return output parameters that will be used
+ aProps->iOutSamplingRate = KDFLT_GAMR_SAMPLING_RATE;
+ aProps->iOutNumChannels = KDFLT_GAMR_NUM_CHANNELS;
+ aProps->iOutClockRate = aProps->iOutSamplingRate;
+
+ // initialize AMR encoder
+ int32 nResult = AMREncodeInit(&iEncState, &iSidState, false);
+ if (nResult < 0) return(GSMAMR_ENC_CODEC_INIT_FAILURE);
+
+ return GSMAMR_ENC_NO_ERROR;
+}
+
+
+////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF int32 CPvGsmAmrEncoder::Encode(TInputAudioStream& aInStream,
+ TOutputAudioStream& aOutStream)
+{
+ // check first if mode specified is invalid
+ if (IsModeValid(aInStream.iMode) == false)
+ return GSMAMR_ENC_INVALID_MODE;
+
+ // set AMR mode for this set of samples
+ iGsmAmrMode = (GSM_AMR_MODES)aInStream.iMode;
+
+ // get the maximum number of frames // BX
+ int32 bytesPerFrame = iNumSamplesPerFrame * iBytesPerSample;
+ int32 maxNumFrames = aInStream.iSampleLength / bytesPerFrame;
+ uint8 *pFrameIn = aInStream.iSampleBuffer;
+ uint8 *pFrameOut = aOutStream.iBitStreamBuffer;
+ int32 i;
+
+ // encode samples
+ for (i = 0; i < maxNumFrames; i++)
+ {
+
+ // //////////////////////////////////////////
+ // encode this frame
+ // //////////////////////////////////////////
+ int32 * temp = & iLastModeUsed;
+ Word16 nStatus = AMREncode(iEncState, iSidState, // BX, Word16 instead of int32 to avoid wierd case(IF2 format): the function returns 31, but nStatus ends up with a big wierd number
+ (Mode)iGsmAmrMode,
+ (Word16 *)pFrameIn,
+ (unsigned char *)pFrameOut,
+ (Frame_Type_3GPP*) temp,
+ iBitStreamFormat);
+
+ if (nStatus < 0)
+ {
+ // an error when encoding was received, so quit
+ return(GSMAMR_ENC_CODEC_ENCODE_FAILURE);
+ }
+
+ // save nStatus as this indicates the encoded frame size
+ int32 encFrameSize = (int32)nStatus;
+ aOutStream.iSampleFrameSize[i] = encFrameSize;
+ pFrameOut += encFrameSize;
+ pFrameIn += bytesPerFrame;
+ }
+
+ // set other values to be returned
+ aOutStream.iNumSampleFrames = maxNumFrames;
+ return(GSMAMR_ENC_NO_ERROR);
+}
+
+////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF int32 CPvGsmAmrEncoder::CleanupEncoder()
+{
+ // call terminate function of GSM AMR encoder
+ AMREncodeExit(&iEncState, &iSidState);
+
+ iEncState = NULL;
+ iSidState = NULL;
+
+ return GSMAMR_ENC_NO_ERROR;
+}
+
+////////////////////////////////////////////////////////////////////////////
+OSCL_EXPORT_REF int32 CPvGsmAmrEncoder::Reset()
+{
+ // reset GSM AMR encoder (state memory and SID sync function.)
+ Word16 nStatus = AMREncodeReset(&iEncState, &iSidState);
+
+ if (nStatus < 0)
+ {
+ return GSMAMR_ENC_CODEC_ENCODE_FAILURE;
+ }
+ return GSMAMR_ENC_NO_ERROR;
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: hp_max.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "hp_max.h"
+#include "basic_op.h"
+#include "cnst.h"
+#include "l_abs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: hp_max
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ corr[] = correlation vector (Word16)
+ scal_sig[] = scaled signal vector (Word16)
+ L_frame = length of frame to compute pitch (Word16
+ lag_max = maximum lag (Word16)
+ lag_min = minimum lag (Word16)
+ cor_hp_max = pointer to max high-pass filtered norm. correlation (Word16)
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ cor_hp_max contains max high-pass filtered norm. correlation (Word16)
+ pOverflow -> 1 if the maximum correlation computation resulted in overflow
+
+ Returns:
+ 0 (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function finds the maximum high-pass filtered correlation of scal_sig[]
+ in a given delay range.
+
+ The correlation is given by
+ corr[t] = <scal_sig[n],scal_sig[n-t]>, t=lag_min,...,lag_max
+ The functions outputs the maximum high-pass filtered correlation after
+ normalization.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] hp_max.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 hp_max (
+ Word32 corr[], // i : correlation vector
+ Word16 scal_sig[], // i : scaled signal
+ Word16 L_frame, // i : length of frame to compute pitch
+ Word16 lag_max, // i : maximum lag
+ Word16 lag_min, // i : minimum lag
+ Word16 *cor_hp_max) // o : max high-pass filtered norm. correlation
+{
+ Word16 i;
+ Word16 *p, *p1;
+ Word32 max, t0, t1;
+ Word16 max16, t016, cor_max;
+ Word16 shift, shift1, shift2;
+
+ max = MIN_32;
+ t0 = 0L;
+* The reference ETSI code uses a global flag for Overflow inside the math functions
+* saturate(). In the actual implementation a pointer to Overflow flag is passed in
+* as a parameter to the function
+
+ for (i = lag_max-1; i > lag_min; i--)
+ {
+ // high-pass filtering
+ t0 = L_sub (L_sub(L_shl(corr[-i], 1), corr[-i-1]), corr[-i+1]);
+ t0 = L_abs (t0);
+
+ if (L_sub (t0, max) >= 0)
+ {
+ max = t0;
+ }
+ }
+
+ // compute energy
+ p = scal_sig;
+ p1 = &scal_sig[0];
+ t0 = 0L;
+ for (i = 0; i < L_frame; i++, p++, p1++)
+ {
+ t0 = L_mac (t0, *p, *p1);
+ }
+
+ p = scal_sig;
+ p1 = &scal_sig[-1];
+ t1 = 0L;
+ for (i = 0; i < L_frame; i++, p++, p1++)
+ {
+ t1 = L_mac (t1, *p, *p1);
+ }
+
+ // high-pass filtering
+ t0 = L_sub(L_shl(t0, 1), L_shl(t1, 1));
+ t0 = L_abs (t0);
+
+ // max/t0
+ shift1 = sub(norm_l(max), 1);
+ max16 = extract_h(L_shl(max, shift1));
+ shift2 = norm_l(t0);
+ t016 = extract_h(L_shl(t0, shift2));
+
+ if (t016 != 0)
+ {
+ cor_max = div_s(max16, t016);
+ }
+ else
+ {
+ cor_max = 0;
+ }
+
+ shift = sub(shift1, shift2);
+
+ if (shift >= 0)
+ {
+ *cor_hp_max = shr(cor_max, shift); // Q15
+ }
+ else
+ {
+ *cor_hp_max = shl(cor_max, negate(shift)); // Q15
+ }
+
+ return 0;
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word16 hp_max(
+ Word32 corr[], /* i : correlation vector. */
+ Word16 scal_sig[], /* i : scaled signal. */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 lag_max, /* i : maximum lag */
+ Word16 lag_min, /* i : minimum lag */
+ Word16 *cor_hp_max, /* o : max high-pass filtered norm. correlation */
+ Flag *pOverflow /* i/o : overflow Flag */
+)
+{
+ Word16 i;
+ Word16 *p, *p1;
+ Word32 max, t0, t1;
+ Word16 max16, t016, cor_max;
+ Word16 shift, shift1, shift2;
+ Word32 L_temp;
+
+ max = MIN_32;
+ t0 = 0L;
+
+ for (i = lag_max - 1; i > lag_min; i--)
+ {
+ /* high-pass filtering */
+ t0 = L_shl(corr[-i], 1, pOverflow);
+ L_temp = L_sub(t0, corr[-i-1], pOverflow);
+ t0 = L_sub(L_temp, corr[-i+1], pOverflow);
+ t0 = L_abs(t0);
+
+ if (t0 >= max)
+ {
+ max = t0;
+ }
+ }
+
+ /* compute energy */
+ p = scal_sig;
+ p1 = &scal_sig[0];
+ t0 = 0L;
+ for (i = 0; i < L_frame; i++, p++, p1++)
+ {
+ t0 = L_mac(t0, *p, *p1, pOverflow);
+ }
+
+ p = scal_sig;
+ p1 = &scal_sig[-1];
+ t1 = 0L;
+ for (i = 0; i < L_frame; i++, p++, p1++)
+ {
+ t1 = L_mac(t1, *p, *p1, pOverflow);
+ }
+
+ /* high-pass filtering */
+ L_temp = L_shl(t0, 1, pOverflow);
+ t1 = L_shl(t1, 1, pOverflow);
+ t0 = L_sub(L_temp, t1, pOverflow);
+ t0 = L_abs(t0);
+
+ /* max/t0 */
+ /* shift1 = sub(norm_l(max), 1);
+ max16 = extract_h(L_shl(max, shift1));
+ shift2 = norm_l(t0);
+ t016 = extract_h(L_shl(t0, shift2)); */
+
+ t016 = norm_l(max);
+ shift1 = t016 - 1;
+
+ L_temp = L_shl(max, shift1, pOverflow);
+ max16 = (Word16)(L_temp >> 16);
+
+ shift2 = norm_l(t0);
+ L_temp = L_shl(t0, shift2, pOverflow);
+ t016 = (Word16)(L_temp >> 16);
+
+ if (t016 != 0)
+ {
+ cor_max = div_s(max16, t016);
+ }
+ else
+ {
+ cor_max = 0;
+ }
+
+ shift = shift1 - shift2;
+
+ if (shift >= 0)
+ {
+ *cor_hp_max = shr(cor_max, shift, pOverflow); /* Q15 */
+ }
+ else
+ {
+ *cor_hp_max = shl(cor_max, negate(shift), pOverflow); /* Q15 */
+ }
+
+ return 0;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: hp_max.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : hp_max.h
+ Purpose : Find the maximum correlation of scal_sig[] in a given
+ delay range.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef HP_MAX_H
+#define HP_MAX_H "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ Word16 hp_max(
+ Word32 corr[], /* i : correlation vector. */
+ Word16 scal_sig[], /* i : scaled signal. */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 lag_max, /* i : maximum lag */
+ Word16 lag_min, /* i : minimum lag */
+ Word16 *cor_hp_max, /* o : max high-pass filtered norm. correlation */
+ Flag *pOverflow /* i/o : overflow Flag */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HP_MAX_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: inter_36.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "inter_36.h"
+#include "cnst.h"
+#include "inter_36_tab.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define UP_SAMP_MAX 6
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: inter_36
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pX = pointer to input vector of type Word16
+ frac = fraction (-2..2 for 3*, -3..3 for 6*) of type Word16
+ flag3 = if set, upsampling rate = 3 (6 otherwise) of type Word16
+ pOverflow = pointer to overflow flag
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ File : inter_36.c
+ Purpose : Interpolating the normalized correlation
+ : with 1/3 or 1/6 resolution.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ inter_36.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Word16 i, k;
+ Word16 *x1, *x2;
+ const Word16 *c1, *c2;
+ Word32 s;
+
+ if (flag3 != 0)
+ {
+ frac = shl (frac, 1); // inter_3[k] = inter_6[2*k] -> k' = 2*k
+ }
+
+ if (frac < 0)
+ {
+ frac = add (frac, UP_SAMP_MAX);
+ x--;
+ }
+
+ x1 = &x[0];
+ x2 = &x[1];
+ c1 = &inter_6[frac];
+ c2 = &inter_6[sub (UP_SAMP_MAX, frac)];
+
+ s = 0;
+ for (i = 0, k = 0; i < L_INTER_SRCH; i++, k += UP_SAMP_MAX)
+ {
+ s = L_mac (s, x1[-i], c1[k]);
+ s = L_mac (s, x2[i], c2[k]);
+ }
+
+ return pv_round (s);
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 Interpol_3or6( /* o : interpolated value */
+ Word16 *pX, /* i : input vector */
+ Word16 frac, /* i : fraction (-2..2 for 3*, -3..3 for 6*) */
+ Word16 flag3, /* i : if set, upsampling rate = 3 (6 otherwise) */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+ Word16 k;
+ Word16 *pX1;
+ Word16 *pX2;
+ const Word16 *pC1;
+ const Word16 *pC2;
+ Word32 s;
+ Word16 temp1;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ if (flag3 != 0)
+ {
+ frac <<= 1;
+ /* inter_3[k] = inter_6[2*k] -> k' = 2*k */
+ }
+
+ if (frac < 0)
+ {
+ frac += UP_SAMP_MAX;
+ pX--;
+ }
+
+ pX1 = &pX[0];
+ pX2 = &pX[1];
+ pC1 = &inter_6[frac];
+ temp1 = UP_SAMP_MAX - frac;
+ pC2 = &inter_6[temp1];
+
+ s = 0x04000;
+ k = 0;
+
+ for (i = (L_INTER_SRCH >> 1); i != 0; i--)
+ {
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (pX1--), (Word32) pC1[k], s);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (pX2++), (Word32) pC2[k], s);
+ k += UP_SAMP_MAX;
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (pX1--), (Word32) pC1[k], s);
+ s = amrnb_fxp_mac_16_by_16bb((Word32) * (pX2++), (Word32) pC2[k], s);
+ k <<= 1;
+ }
+
+ return((Word16)(s >> 15));
+}
+
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: inter_36.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : inter_36.h
+ Purpose : Interpolating the normalized correlation
+ : with 1/3 or 1/6 resolution.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _INTER_36_H_
+#define _INTER_36_H_
+#define inter_36_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ Word16 Interpol_3or6( /* (o) : interpolated value */
+ Word16 *x, /* (i) : input vector */
+ Word16 frac, /* (i) : fraction (-2..2 for 3*, -3..3 for 6*) */
+ Word16 flag3, /* (i) : if set, upsampling rate = 3 (6 otherwise) */
+ Flag *pOverflow
+ );
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _INTER_36_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Filename: inter_36_tab.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ None
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ File : inter_36.tab
+ Purpose : Tables for interpolating the normalized correlation
+ with 1/3 or 1/6 resolution.
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "inter_36_tab.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+#define UP_SAMP_MAX 6
+#define FIR_SIZE (UP_SAMP_MAX*L_INTER_SRCH+1)
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+ /* 1/6 resolution interpolation filter (-3 dB at 3600 Hz) */
+ /* Note: The IS641 (7.4) 1/3 resolution filter is simply a subsampled
+ version of the 1/6 resolution filter, i.e. it uses
+ every second coefficient:
+
+ inter_3[k] = inter_6[2*k], 0 <= k <= 3*L_INTER_SRCH
+ */
+
+ const Word16 inter_6[FIR_SIZE] =
+ {
+ 29519,
+ 28316, 24906, 19838, 13896, 7945, 2755,
+ -1127, -3459, -4304, -3969, -2899, -1561,
+ -336, 534, 970, 1023, 823, 516,
+ 220, 0, -131, -194, -215, 0
+ };
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; Define all local variables
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Function body here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Return nothing or data or data pointer
+----------------------------------------------------------------------------*/
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Filename: inter_36_tab.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file declares a table BytesUsed.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef INTER_36_TAB_H
+#define INTER_36_TAB_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 inter_6[];
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: l_abs.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32 ) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ L_var1 = absolute value of input (Word32)
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates the absolute value of L_var1; saturate in case
+ where the input is -214783648.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word32 L_abs (Word32 L_var1)
+{
+ Word32 L_var_out;
+
+ if (L_var1 == MIN_32)
+ {
+ L_var_out = MAX_32;
+ }
+ else
+ {
+ if (L_var1 < 0)
+ {
+ L_var_out = -L_var1;
+ }
+ else
+ {
+ L_var_out = L_var1;
+ }
+ }
+
+#if (WMOPS)
+ multiCounter[currCounter].L_abs++;
+#endif
+ return (L_var_out);
+}
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "l_abs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word32 L_abs(Word32 L_var1)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+
+ Word32 y = L_var1 - (L_var1 < 0);
+ y = y ^(y >> 31);
+ return (y);
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: l_abs.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the L_abs function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef L_ABS_H
+#define L_ABS_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word32 L_abs(Word32 L_var1);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ hi = 16 bit signed integer (Word16) whose value falls in
+ the range : 0x8000 <= hi <= 0x7fff.
+ lo = 16 bit signed integer (Word16) whose value falls in
+ the range : 0x8000 <= lo <= 0x7fff.
+
+ Outputs:
+ pOverflow = 1 if overflow happens in a math function called by this function.
+ L_out = 32-bit result of (hi<<16 + lo<<1).
+
+ Returns:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function composes a 32 bit integer from two 16 bit double precision
+ format (DPF) numbers hi and lo by the following operation:
+ 1. Deposit hi into the 16 MS bits of the 32 bit output L_out.
+ 2. Shift lo left by 1.
+ 3. Add results from 1 and 2 with saturation to return the 32 bit result
+ L_out.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] oper_32b.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "l_comp.h"
+#include "basic_op.h"
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+Word32 L_Comp(Word16 hi, Word16 lo, Flag *pOverflow)
+{
+
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+ Word32 L_32;
+ Word32 temp32;
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+
+ L_32 = ((Word32)hi << 16);
+
+ temp32 = L_mac(L_32, lo, 1, pOverflow);
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+
+ return (temp32); /* = hi<<16 + lo<<1 */
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+
+
+
+ Filename: l_extract.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: L_extract
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var = 32 bit signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_32 <= 0x7fff ffff.
+
+ pL_var_hi = pointer to the most significant word of L_var (Word16).
+
+ pL_var_lo = pointer to the least significant word of L_var shifted
+ to the left by 1 (Word16).
+
+ pOverflow = pointer to overflow (Flag)
+
+ Outputs:
+ pOverflow -> 1 if the 32 bit add operation resulted in overflow
+ pL_var_hi -> MS word of L_32.
+ pL_var_lo -> LS word of L_32 shifted left by 1.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function extracts two 16-bit double precision format (DPF) numbers
+ from a 32-bit integer. The MS word of L_var will be stored in the location
+ pointed to by pL_var_hi and the shifted LS word of L_var will be stored in
+ the location pointed to by pL_var_lo.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] L_extract() function in oper_32b.c, UMTS GSM AMR speech codec, R99 -
+ Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void L_Extract(Word32 L_var,
+ Word16 *pL_var_hi,
+ Word16 *pL_var_lo,
+ Flag *pOverflow)
+{
+
+ Word32 temp;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ temp = (L_var >> 16);
+
+ *(pL_var_hi) = (Word16) temp;
+ *(pL_var_lo) = (Word16)((L_var >> 1) - (temp << 15));
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ L_var1 = 32 bit long signed integer (Word32) whose value falls
+ in the range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ L_var1 = 32-bit negation of input
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function negates the 32 bit variable, L_var1, with saturation; saturate
+ in the case where input is -2147483648 (0x8000 0000).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [1] basicop2.c, ETS Version 2.0.0, February 8, 1999
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word32 L_negate (Word32 L_var1)
+{
+ Word32 L_var_out;
+
+ L_var_out = (L_var1 == MIN_32) ? MAX_32 : -L_var1;
+#if (WMOPS)
+ multiCounter[currCounter].L_negate++;
+#endif
+ return (L_var_out);
+}
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Word32 L_negate(register Word32 L_var1)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; Function body here
+ ----------------------------------------------------------------------------*/
+ L_var1 = (L_var1 == MIN_32) ? MAX_32 : -L_var1;
+
+ /*----------------------------------------------------------------------------
+ ; Return nothing or data or data pointer
+ ----------------------------------------------------------------------------*/
+ return (L_var1);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: lag_wind.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "lag_wind.h"
+#include "lag_wind_tab.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lag_wind
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ m = LPC order of type Word16
+ r_h[] = pointer to autocorrelations (msb) of type Word16
+ r_l[] = pointer to autocorrelations (lsb) of type Word16
+ pOverflow = pointer to overflow flag
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ File : lag_wind.c
+ Purpose : Lag windowing of autocorrelations.
+
+ FUNCTION: Lag_window()
+
+ PURPOSE: Lag windowing of autocorrelations.
+
+ DESCRIPTION:
+ r[i] = r[i]*lag_wind[i], i=1,...,10
+
+ r[i] and lag_wind[i] are in special double precision format.
+ See "oper_32b.c" for the format.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lag_wind.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Word16 i;
+ Word32 x;
+
+ for (i = 1; i <= m; i++)
+ {
+ x = Mpy_32 (r_h[i], r_l[i], lag_h[i - 1], lag_l[i - 1], pOverflow);
+ L_Extract (x, &r_h[i], &r_l[i], pOverflow);
+ }
+ return;
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void Lag_window(
+ Word16 m, /* (i) : LPC order */
+ Word16 r_h[], /* (i/o) : Autocorrelations (msb) */
+ Word16 r_l[], /* (i/o) : Autocorrelations (lsb) */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+ Word32 x;
+ const Word16 *p_lag_h = &lag_h[0];
+ const Word16 *p_lag_l = &lag_l[0];
+ Word16 *p_r_h = &r_h[1];
+ Word16 *p_r_l = &r_l[1];
+
+ for (i = m; i != 0 ; i--)
+ {
+ x = Mpy_32(*(p_r_h), *(p_r_l), *(p_lag_h++), *(p_lag_l++), pOverflow);
+ *(p_r_h) = (Word16)(x >> 16);
+ *(p_r_l++) = (x >> 1) - (*(p_r_h++) << 15);
+ }
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: lag_wind.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : lag_wind.h
+ Purpose : Lag windowing of autocorrelations.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _LAG_WIND_H_
+#define _LAG_WIND_H_
+#define lag_wind_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ void Lag_window(
+ Word16 m, /* (i) : LPC order */
+ Word16 r_h[], /* (i/o) : Autocorrelations (msb) */
+ Word16 r_l[], /* (i/o) : Autocorrelations (lsb) */
+ Flag *pOverflow
+ );
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LAG_WIND_H_ */
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Filename: lag_wind_tab.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ None
+
+ Local Stores/Buffers/Pointers Needed:
+ None
+
+ Global Stores/Buffers/Pointers Needed:
+ None
+
+ Outputs:
+ None
+
+ Pointers and Buffers Modified:
+ None
+
+ Local Stores Modified:
+ None
+
+ Global Stores Modified:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ File : lag_wind.tab
+ Purpose : Table of lag_window for autocorrelation.
+
+ *-----------------------------------------------------*
+ | Table of lag_window for autocorrelation. |
+ | |
+ | noise floor = 1.0001 = (0.9999 on r[1] ..r[10]) |
+ | Bandwitdh expansion = 60 Hz |
+ | |
+ | |
+ | lag_wind[0] = 1.00000000 (not stored) |
+ | lag_wind[1] = 0.99879038 |
+ | lag_wind[2] = 0.99546897 |
+ | lag_wind[3] = 0.98995781 |
+ | lag_wind[4] = 0.98229337 |
+ | lag_wind[5] = 0.97252619 |
+ | lag_wind[6] = 0.96072036 |
+ | lag_wind[7] = 0.94695264 |
+ | lag_wind[8] = 0.93131179 |
+ | lag_wind[9] = 0.91389757 |
+ | lag_wind[10]= 0.89481968 |
+ -------------------------------------------------------
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ None
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "lag_wind_tab.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+ const Word16 lag_h[10] =
+ {
+ 32728,
+ 32619,
+ 32438,
+ 32187,
+ 31867,
+ 31480,
+ 31029,
+ 30517,
+ 29946,
+ 29321
+ };
+
+ const Word16 lag_l[10] =
+ {
+ 11904,
+ 17280,
+ 30720,
+ 25856,
+ 24192,
+ 28992,
+ 24384,
+ 7360,
+ 19520,
+ 14784
+ };
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL FUNCTION REFERENCES
+ ; Declare functions defined elsewhere and referenced in this module
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; Define all local variables
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Function body here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Return nothing or data or data pointer
+----------------------------------------------------------------------------*/
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Filename: lag_wind_tab.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file declares tables used by lag_wind.c.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef LAG_WIND_TAB_H
+#define LAG_WIND_TAB_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+ extern const Word16 lag_h[];
+ extern const Word16 lag_l[];
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: levinson.cpp
+ Funtions: Levinson_init
+ Levinson_reset
+ Levinson_exit
+ Levinson
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the function the implements the Levinson-Durbin algorithm
+ using double-precision arithmetic. This file also includes functions to
+ initialize, allocate, and deallocate memory used by the Levinson function.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "levinson.h"
+#include "basicop_malloc.h"
+#include "basic_op.h"
+#include "l_abs.h"
+#include "div_32.h"
+#include "cnst.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Levinson_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to an array of pointers to structures of type
+ LevinsonState
+
+ Outputs:
+ pointer pointed to by state points to the newly allocated memory to
+ be used by Levinson function
+
+ Returns:
+ return_value = 0, if initialization was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function allocates and initializes the state memory used by the
+ Levinson function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ levinson.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Levinson_init (LevinsonState **state)
+{
+ LevinsonState* s;
+
+ if (state == (LevinsonState **) NULL){
+ //fprint(stderr, "Levinson_init: invalid parameter\n");
+ return -1;
+ }
+ *state = NULL;
+
+ // allocate memory
+ if ((s= (LevinsonState *) malloc(sizeof(LevinsonState))) == NULL){
+ //fprint(stderr, "Levinson_init: can not malloc state structure\n");
+ return -1;
+ }
+
+ Levinson_reset(s);
+ *state = s;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Levinson_init(LevinsonState **state)
+{
+ LevinsonState* s;
+
+ if (state == (LevinsonState **) NULL)
+ {
+ /* fprint(stderr, "Levinson_init: invalid parameter\n"); */
+ return(-1);
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (LevinsonState *) oscl_malloc(sizeof(LevinsonState))) == NULL)
+ {
+ /* fprint(stderr, "Levinson_init:
+ can not malloc state structure\n"); */
+ return(-1);
+ }
+
+ Levinson_reset(s);
+ *state = s;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Levinson_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to structures of type LevinsonState
+
+ Outputs:
+ old_A field of structure pointed to by state is initialized to 4096
+ (first location) and the rest to zeros
+
+ Returns:
+ return_value = 0, if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function initializes the state memory used by the Levinson function to
+ zero.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ levinson.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Levinson_reset (LevinsonState *state)
+{
+ Word16 i;
+
+ if (state == (LevinsonState *) NULL){
+ fprint(stderr, "Levinson_reset: invalid parameter\n");
+ return -1;
+ }
+
+ state->old_A[0] = 4096;
+ for(i = 1; i < M + 1; i++)
+ state->old_A[i] = 0;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Levinson_reset(LevinsonState *state)
+{
+ Word16 i;
+
+ if (state == (LevinsonState *) NULL)
+ {
+ /* fprint(stderr, "Levinson_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ state->old_A[0] = 4096;
+ for (i = 1; i < M + 1; i++)
+ {
+ state->old_A[i] = 0;
+ }
+
+ return(0);
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Levinson_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to an array of pointers to structures of type
+ LevinsonState
+
+ Outputs:
+ pointer pointed to by state is set to the NULL address
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function deallocates the state memory used by the Levinson function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ levinson.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Levinson_exit (LevinsonState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ // deallocate memory
+ free(*state);
+ *state = NULL;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Levinson_exit(LevinsonState **state)
+{
+ if (state == NULL || *state == NULL)
+ {
+ return;
+ }
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Levinson
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to structures of type LevinsonState
+ Rh = vector containing most significant byte of
+ autocorrelation values (Word16)
+ Rl = vector containing least significant byte of
+ autocorrelation values (Word16)
+ A = vector of LPC coefficients (10th order) (Word16)
+ rc = vector containing first four reflection coefficients (Word16)
+ pOverflow = pointer to overflow indicator (Flag)
+
+ Outputs:
+ A contains the newly calculated LPC coefficients
+ rc contains the newly calculated reflection coefficients
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function implements the Levinson-Durbin algorithm using double-
+ precision arithmetic. This is used to compute the Linear Predictive (LP)
+ filter parameters from the speech autocorrelation values.
+
+ The algorithm implemented is as follows:
+ A[0] = 1
+ K = -R[1]/R[0]
+ A[1] = K
+ Alpha = R[0] * (1-K**2]
+
+ FOR i = 2 to M
+
+ S = SUM ( R[j]*A[i-j] ,j=1,i-1 ) + R[i]
+ K = -S / Alpha
+
+ FOR j = 1 to i-1
+ An[j] = A[j] + K*A[i-j] where An[i] = new A[i]
+ ENDFOR
+
+ An[i]=K
+ Alpha=Alpha * (1-K**2)
+
+ END
+
+ where:
+ R[i] = autocorrelations
+ A[i] = filter coefficients
+ K = reflection coefficient
+ Alpha = prediction gain
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ levinson.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Levinson (
+ LevinsonState *st,
+ Word16 Rh[], // i : Rh[m+1] Vector of autocorrelations (msb)
+ Word16 Rl[], // i : Rl[m+1] Vector of autocorrelations (lsb)
+ Word16 A[], // o : A[m] LPC coefficients (m = 10)
+ Word16 rc[] // o : rc[4] First 4 reflection coefficients
+)
+{
+ Word16 i, j;
+ Word16 hi, lo;
+ Word16 Kh, Kl; // reflexion coefficient; hi and lo
+ Word16 alp_h, alp_l, alp_exp; // Prediction gain; hi lo and exponent
+ Word16 Ah[M + 1], Al[M + 1]; // LPC coef. in double prec.
+ Word16 Anh[M + 1], Anl[M + 1];// LPC coef.for next iteration in double
+ prec.
+ Word32 t0, t1, t2; // temporary variable
+
+ // K = A[1] = -R[1] / R[0]
+
+ t1 = L_Comp (Rh[1], Rl[1]);
+ t2 = L_abs (t1); // abs R[1]
+ t0 = Div_32 (t2, Rh[0], Rl[0]); // R[1]/R[0]
+ if (t1 > 0)
+ t0 = L_negate (t0); // -R[1]/R[0]
+ L_Extract (t0, &Kh, &Kl); // K in DPF
+
+ rc[0] = pv_round (t0);
+
+ t0 = L_shr (t0, 4); // A[1] in
+ L_Extract (t0, &Ah[1], &Al[1]); // A[1] in DPF
+
+ // Alpha = R[0] * (1-K**2)
+
+ t0 = Mpy_32 (Kh, Kl, Kh, Kl); // K*K
+ t0 = L_abs (t0); // Some case <0 !!
+ t0 = L_sub ((Word32) 0x7fffffffL, t0); // 1 - K*K
+ L_Extract (t0, &hi, &lo); // DPF format
+ t0 = Mpy_32 (Rh[0], Rl[0], hi, lo); // Alpha in
+
+ // Normalize Alpha
+
+ alp_exp = norm_l (t0);
+ t0 = L_shl (t0, alp_exp);
+ L_Extract (t0, &alp_h, &alp_l); // DPF format
+
+ *--------------------------------------*
+ * ITERATIONS I=2 to M *
+ *--------------------------------------*
+
+ for (i = 2; i <= M; i++)
+ {
+ // t0 = SUM ( R[j]*A[i-j] ,j=1,i-1 ) + R[i]
+
+ t0 = 0;
+ for (j = 1; j < i; j++)
+ {
+ t0 = L_add (t0, Mpy_32 (Rh[j], Rl[j], Ah[i - j], Al[i - j]));
+ }
+ t0 = L_shl (t0, 4);
+
+ t1 = L_Comp (Rh[i], Rl[i]);
+ t0 = L_add (t0, t1); // add R[i]
+
+ // K = -t0 / Alpha
+
+ t1 = L_abs (t0);
+ t2 = Div_32 (t1, alp_h, alp_l); // abs(t0)/Alpha
+ if (t0 > 0)
+ t2 = L_negate (t2); // K =-t0/Alpha
+ t2 = L_shl (t2, alp_exp); // denormalize; compare to Alpha
+ L_Extract (t2, &Kh, &Kl); // K in DPF
+
+ if (sub (i, 5) < 0)
+ {
+ rc[i - 1] = pv_round (t2);
+ }
+ // Test for unstable filter. If unstable keep old A(z)
+
+ if (sub (abs_s (Kh), 32750) > 0)
+ {
+ for (j = 0; j <= M; j++)
+ {
+ A[j] = st->old_A[j];
+ }
+
+ for (j = 0; j < 4; j++)
+ {
+ rc[j] = 0;
+ }
+
+ return 0;
+ }
+ *------------------------------------------*
+ * Compute new LPC coeff. -> An[i] *
+ * An[j]= A[j] + K*A[i-j] , j=1 to i-1 *
+ * An[i]= K *
+ *------------------------------------------*
+
+ for (j = 1; j < i; j++)
+ {
+ t0 = Mpy_32 (Kh, Kl, Ah[i - j], Al[i - j]);
+ t0 = L_add(t0, L_Comp(Ah[j], Al[j]));
+ L_Extract (t0, &Anh[j], &Anl[j]);
+ }
+ t2 = L_shr (t2, 4);
+ L_Extract (t2, &Anh[i], &Anl[i]);
+
+ // Alpha = Alpha * (1-K**2)
+
+ t0 = Mpy_32 (Kh, Kl, Kh, Kl); // K*K
+ t0 = L_abs (t0); // Some case <0 !!
+ t0 = L_sub ((Word32) 0x7fffffffL, t0); // 1 - K*K
+ L_Extract (t0, &hi, &lo); // DPF format
+ t0 = Mpy_32 (alp_h, alp_l, hi, lo);
+
+ // Normalize Alpha
+
+ j = norm_l (t0);
+ t0 = L_shl (t0, j);
+ L_Extract (t0, &alp_h, &alp_l); // DPF format
+ alp_exp = add (alp_exp, j); // Add normalization to
+ alp_exp
+
+ // A[j] = An[j]
+
+ for (j = 1; j <= i; j++)
+ {
+ Ah[j] = Anh[j];
+ Al[j] = Anl[j];
+ }
+ }
+
+ A[0] = 4096;
+ for (i = 1; i <= M; i++)
+ {
+ t0 = L_Comp (Ah[i], Al[i]);
+ st->old_A[i] = A[i] = pv_round (L_shl (t0, 1));
+ }
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Levinson(
+ LevinsonState *st,
+ Word16 Rh[], /* i : Rh[m+1] Vector of autocorrelations (msb) */
+ Word16 Rl[], /* i : Rl[m+1] Vector of autocorrelations (lsb) */
+ Word16 A[], /* o : A[m] LPC coefficients (m = 10) */
+ Word16 rc[], /* o : rc[4] First 4 reflection coefficients */
+ Flag *pOverflow
+)
+{
+ register Word16 i;
+ register Word16 j;
+ Word16 hi;
+ Word16 lo;
+ Word16 Kh; /* reflexion coefficient; hi and lo */
+ Word16 Kl;
+ Word16 alp_h; /* Prediction gain; hi lo and exponent*/
+ Word16 alp_l;
+ Word16 alp_exp;
+ Word16 Ah[M + 1]; /* LPC coef. in double prec. */
+ Word16 Al[M + 1];
+ Word16 Anh[M + 1]; /* LPC coef.for next iteration in */
+ Word16 Anl[M + 1]; /* double prec. */
+ register Word32 t0; /* temporary variable */
+ register Word32 t1; /* temporary variable */
+ register Word32 t2; /* temporary variable */
+
+ Word16 *p_Rh;
+ Word16 *p_Rl;
+ Word16 *p_Ah;
+ Word16 *p_Al;
+ Word16 *p_Anh;
+ Word16 *p_Anl;
+ Word16 *p_A;
+
+ /* K = A[1] = -R[1] / R[0] */
+ t1 = ((Word32) * (Rh + 1)) << 16;
+ t1 += *(Rl + 1) << 1;
+
+ t2 = L_abs(t1); /* abs R[1] - required by Div_32 */
+ t0 = Div_32(t2, *Rh, *Rl, pOverflow); /* R[1]/R[0] */
+
+ if (t1 > 0)
+ {
+ t0 = L_negate(t0); /* -R[1]/R[0] */
+ }
+
+ /* K in DPF */
+ Kh = (Word16)(t0 >> 16);
+ Kl = (Word16)((t0 >> 1) - ((Word32)(Kh) << 15));
+
+ *rc = pv_round(t0, pOverflow);
+
+ t0 = t0 >> 4;
+
+ /* A[1] in DPF */
+ *(Ah + 1) = (Word16)(t0 >> 16);
+
+ *(Al + 1) = (Word16)((t0 >> 1) - ((Word32)(*(Ah + 1)) << 15));
+
+ /* Alpha = R[0] * (1-K**2) */
+ t0 = Mpy_32(Kh, Kl, Kh, Kl, pOverflow); /* K*K */
+ t0 = L_abs(t0); /* Some case <0 !! */
+ t0 = 0x7fffffffL - t0; /* 1 - K*K */
+
+ /* DPF format */
+ hi = (Word16)(t0 >> 16);
+ lo = (Word16)((t0 >> 1) - ((Word32)(hi) << 15));
+
+ t0 = Mpy_32(*Rh, *Rl, hi, lo, pOverflow); /* Alpha in */
+
+ /* Normalize Alpha */
+
+ alp_exp = norm_l(t0);
+ t0 = t0 << alp_exp;
+
+ /* DPF format */
+ alp_h = (Word16)(t0 >> 16);
+ alp_l = (Word16)((t0 >> 1) - ((Word32)(alp_h) << 15));
+
+ /*--------------------------------------*
+ * ITERATIONS I=2 to M *
+ *--------------------------------------*/
+
+ for (i = 2; i <= M; i++)
+ {
+ /* t0 = SUM ( R[j]*A[i-j] ,j=1,i-1 ) + R[i] */
+
+ t0 = 0;
+ p_Rh = &Rh[1];
+ p_Rl = &Rl[1];
+ p_Ah = &Ah[i-1];
+ p_Al = &Al[i-1];
+ for (j = 1; j < i; j++)
+ {
+ t0 += (((Word32) * (p_Rh)* *(p_Al--)) >> 15);
+ t0 += (((Word32) * (p_Rl++)* *(p_Ah)) >> 15);
+ t0 += ((Word32) * (p_Rh++)* *(p_Ah--));
+ }
+
+ t0 = t0 << 5;
+
+ t1 = ((Word32) * (Rh + i) << 16) + ((Word32)(*(Rl + i)) << 1);
+ t0 += t1;
+
+ /* K = -t0 / Alpha */
+
+ t1 = L_abs(t0);
+ t2 = Div_32(t1, alp_h, alp_l, pOverflow); /* abs(t0)/Alpha */
+
+ if (t0 > 0)
+ {
+ t2 = L_negate(t2); /* K =-t0/Alpha */
+ }
+
+ t2 = L_shl(t2, alp_exp, pOverflow); /* denormalize; compare to Alpha */
+ Kh = (Word16)(t2 >> 16);
+ Kl = (Word16)((t2 >> 1) - ((Word32)(Kh) << 15));
+
+ if (i < 5)
+ {
+ *(rc + i - 1) = (Word16)((t2 + 0x00008000L) >> 16);
+ }
+ /* Test for unstable filter. If unstable keep old A(z) */
+ if ((abs_s(Kh)) > 32750)
+ {
+ oscl_memcpy(A, &(st->old_A[0]), sizeof(Word16)*(M + 1));
+ oscl_memset(rc, 0, sizeof(Word16)*4);
+ return(0);
+ }
+ /*------------------------------------------*
+ * Compute new LPC coeff. -> An[i] *
+ * An[j]= A[j] + K*A[i-j] , j=1 to i-1 *
+ * An[i]= K *
+ *------------------------------------------*/
+ p_Ah = &Ah[i-1];
+ p_Al = &Al[i-1];
+ p_Anh = &Anh[1];
+ p_Anl = &Anl[1];
+ for (j = 1; j < i; j++)
+ {
+ t0 = (((Word32)Kh* *(p_Al--)) >> 15);
+ t0 += (((Word32)Kl* *(p_Ah)) >> 15);
+ t0 += ((Word32)Kh* *(p_Ah--));
+
+ t0 += (Ah[j] << 15) + Al[j];
+
+ *(p_Anh) = (Word16)(t0 >> 15);
+ *(p_Anl++) = (Word16)(t0 - ((Word32)(*(p_Anh++)) << 15));
+ }
+
+ *(p_Anh) = (Word16)(t2 >> 20);
+ *(p_Anl) = (Word16)((t2 >> 5) - ((Word32)(*(Anh + i)) << 15));
+
+ /* Alpha = Alpha * (1-K**2) */
+
+ t0 = Mpy_32(Kh, Kl, Kh, Kl, pOverflow); /* K*K */
+ t0 = L_abs(t0); /* Some case <0 !! */
+ t0 = 0x7fffffffL - t0; /* 1 - K*K */
+
+ hi = (Word16)(t0 >> 16);
+ lo = (Word16)((t0 >> 1) - ((Word32)(hi) << 15));
+
+ t0 = (((Word32)alp_h * lo) >> 15);
+ t0 += (((Word32)alp_l * hi) >> 15);
+ t0 += ((Word32)alp_h * hi);
+
+ t0 <<= 1;
+ /* Normalize Alpha */
+
+ j = norm_l(t0);
+ t0 <<= j;
+ alp_h = (Word16)(t0 >> 16);
+ alp_l = (Word16)((t0 >> 1) - ((Word32)(alp_h) << 15));
+ alp_exp += j; /* Add normalization to alp_exp */
+
+ /* A[j] = An[j] */
+ oscl_memcpy(&Ah[1], &Anh[1], sizeof(Word16)*i);
+ oscl_memcpy(&Al[1], &Anl[1], sizeof(Word16)*i);
+ }
+
+ p_A = &A[0];
+ *(p_A++) = 4096;
+ p_Ah = &Ah[1];
+ p_Al = &Al[1];
+
+ for (i = 1; i <= M; i++)
+ {
+ t0 = ((Word32) * (p_Ah++) << 15) + *(p_Al++);
+ st->old_A[i] = *(p_A++) = (Word16)((t0 + 0x00002000) >> 14);
+ }
+
+ return(0);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: levinson.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : lag_wind.h
+ Purpose : Lag windowing of autocorrelations.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _LEVINSON_H_
+#define _LEVINSON_H_
+#define levinson_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 old_A[M + 1]; /* Last A(z) for case of unstable filter */
+ } LevinsonState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ Word16 Levinson_init(LevinsonState **st);
+ /* initialize one instance of the pre processing state.
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to Levinson in each call.
+ returns 0 on success
+ */
+
+ Word16 Levinson_reset(LevinsonState *st);
+ /* reset of pre processing state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+ void Levinson_exit(LevinsonState **st);
+ /* de-initialize pre processing state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ Word16 Levinson(
+ LevinsonState *st,
+ Word16 Rh[], /* i : Rh[m+1] Vector of autocorrelations (msb) */
+ Word16 Rl[], /* i : Rl[m+1] Vector of autocorrelations (lsb) */
+ Word16 A[], /* o : A[m] LPC coefficients (m = 10) */
+ Word16 rc[], /* o : rc[4] First 4 reflection coefficients */
+ Flag *pOverflow
+ );
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LEVINSON_H_ */
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: lflg_upd.cpp
+ Functions: LTP_flag_update
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ LTP_flag update for AMR VAD option 2
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "l_extract.h"
+#include "mpy_32_16.h"
+
+#include "vad2.h"
+#include "mode.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- Pointer to vadState2
+ mode -- Word16 -- AMR mode
+
+ Outputs:
+ st -- Pointer to vadState2
+ pOverflow -- Pointer to Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ LTP_flag update for AMR VAD option 2
+
+
+ PURPOSE:
+ Set LTP_flag if the LTP gain > LTP_THRESHOLD, where the value of
+ LTP_THRESHOLD depends on the LTP analysis window length.
+
+ INPUTS:
+
+ mode
+ AMR mode
+ vadState->L_R0
+ LTP energy
+ vadState->L_Rmax
+ LTP maximum autocorrelation
+ OUTPUTS:
+
+ vadState->LTP_flag
+ Set if LTP gain > LTP_THRESHOLD
+
+ RETURN VALUE:
+
+ none
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lflg_upd.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void LTP_flag_update(
+ vadState2 * st,
+ Word16 mode,
+ Flag *pOverflow)
+{
+ Word16 thresh;
+ Word16 hi1;
+ Word16 lo1;
+ Word32 Ltmp;
+
+ if ((mode == MR475) || (mode == MR515))
+ {
+ thresh = 18022; /* (Word16)(32768.0*0.55); */
+ }
+ else if (mode == MR102)
+ {
+ thresh = 19660; /* (Word16)(32768.0*0.60); */
+ }
+ else
+ {
+ thresh = 21299; /* (Word16)(32768.0*0.65); */
+ }
+
+ L_Extract(st->L_R0, &hi1, &lo1, pOverflow);
+
+ Ltmp = Mpy_32_16(hi1, lo1, thresh, pOverflow);
+
+ if (st->L_Rmax > Ltmp)
+ {
+ st->LTP_flag = TRUE;
+ }
+ else
+ {
+ st->LTP_flag = FALSE;
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: lpc.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "lpc.h"
+#include "typedef.h"
+#include "oper_32b.h"
+#include "autocorr.h"
+#include "lag_wind.h"
+#include "levinson.h"
+#include "cnst.h"
+#include "mode.h"
+#include "sub.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lpc_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to pointer of state data of type lpcState
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function initializes the state data for the LPC module.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lpc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+ lpcState* s;
+
+ if (state == (lpcState **) NULL){
+ // fprintf(stderr, "lpc_init: invalid parameter\n");
+ return -1;
+ }
+ *state = NULL;
+
+ // allocate memory
+ if ((s= (lpcState *) malloc(sizeof(lpcState))) == NULL){
+ // fprintf(stderr, "lpc_init: can not malloc state structure\n");
+ return -1;
+ }
+
+ s->levinsonSt = NULL;
+
+ // Init sub states
+ if (Levinson_init(&s->levinsonSt)) {
+ lpc_exit(&s);
+ return -1;
+ }
+
+
+ lpc_reset(s);
+ *state = s;
+
+ return 0;
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 lpc_init(lpcState **state)
+{
+ lpcState* s;
+
+ if (state == (lpcState **) NULL)
+ {
+ /* fprintf(stderr, "lpc_init: invalid parameter\n"); */
+ return -1;
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (lpcState *) oscl_malloc(sizeof(lpcState))) == NULL)
+ {
+ /* fprintf(stderr, "lpc_init: can not malloc state structure\n"); */
+ return -1;
+ }
+
+ s->levinsonSt = NULL;
+
+ /* Init sub states */
+ if (Levinson_init(&s->levinsonSt))
+ {
+ lpc_exit(&s);
+ return -1;
+ }
+
+ lpc_reset(s);
+ *state = s;
+
+ return 0;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lpc_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to pointer of state data of type lpcState
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function resets the state data for the LPC module.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lpc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ if (state == (lpcState *) NULL){
+ // fprintf(stderr, "lpc_reset: invalid parameter\n");
+ return -1;
+ }
+
+ Levinson_reset(state->levinsonSt);
+
+ return 0;
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 lpc_reset(lpcState *state)
+{
+
+ if (state == (lpcState *) NULL)
+ {
+ /* fprintf(stderr, "lpc_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ Levinson_reset(state->levinsonSt);
+
+ return 0;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lpc_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to pointer of state data of type lpcState
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function frees the state data for the LPC module.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lpc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+ if (state == NULL || *state == NULL)
+ return;
+
+ Levinson_exit(&(*state)->levinsonSt);
+
+ // deallocate memory
+ free(*state);
+ *state = NULL;
+
+ return;
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void lpc_exit(lpcState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ Levinson_exit(&(*state)->levinsonSt);
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: lpc
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to state data of type lpcState
+ mode = coder mode of type enum Mode
+ x[] = pointer to input signal (Q15) of type Word16
+ x_12k2[] = pointer to input signal (EFR) (Q15) of type Word16
+ pOverflow = pointer to overflow indicator of type Flag
+
+ Outputs:
+ a[] = pointer to predictor coefficients (Q12) of type Word16
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function executes the LPC functionality for GSM AMR.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ lpc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Word16 rc[4]; // First 4 reflection coefficients Q15
+ Word16 rLow[MP1], rHigh[MP1]; // Autocorrelations low and hi
+ // No fixed Q value but normalized
+ // so that overflow is avoided
+
+ if ( sub ((Word16)mode, (Word16)MR122) == 0)
+ {
+ // Autocorrelations
+ Autocorr(x_12k2, M, rHigh, rLow, window_160_80);
+ // Lag windowing
+ Lag_window(M, rHigh, rLow);
+ // Levinson Durbin
+ Levinson(st->levinsonSt, rHigh, rLow, &a[MP1], rc);
+
+ // Autocorrelations
+ Autocorr(x_12k2, M, rHigh, rLow, window_232_8);
+ // Lag windowing
+ Lag_window(M, rHigh, rLow);
+ // Levinson Durbin
+ Levinson(st->levinsonSt, rHigh, rLow, &a[MP1 * 3], rc);
+ }
+ else
+ {
+ // Autocorrelations
+ Autocorr(x, M, rHigh, rLow, window_200_40);
+ // Lag windowing
+ Lag_window(M, rHigh, rLow);
+ // Levinson Durbin
+ Levinson(st->levinsonSt, rHigh, rLow, &a[MP1 * 3], rc);
+ }
+
+ return 0;
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void lpc(
+ lpcState *st, /* i/o: State struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 x[], /* i : Input signal Q15 */
+ Word16 x_12k2[], /* i : Input signal (EFR) Q15 */
+ Word16 a[], /* o : predictor coefficients Q12 */
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct with table ptrs */
+ Flag *pOverflow
+)
+{
+ Word16 rc[4]; /* First 4 reflection coefficients Q15 */
+ Word16 rLow[MP1], rHigh[MP1]; /* Autocorrelations low and hi */
+ /* No fixed Q value but normalized */
+ /* so that overflow is avoided */
+
+ const Word16* window_160_80_ptr = common_amr_tbls->window_160_80_ptr;
+ const Word16* window_232_8_ptr = common_amr_tbls->window_232_8_ptr;
+ const Word16* window_200_40_ptr = common_amr_tbls->window_200_40_ptr;
+
+ if (mode == MR122)
+ {
+ /* Autocorrelations */
+ Autocorr(x_12k2, M, rHigh, rLow, window_160_80_ptr, pOverflow);
+ /* Lag windowing */
+ Lag_window(M, rHigh, rLow, pOverflow);
+ /* Levinson Durbin */
+ Levinson(st->levinsonSt, rHigh, rLow, &a[MP1], rc, pOverflow);
+
+ /* Autocorrelations */
+ Autocorr(x_12k2, M, rHigh, rLow, window_232_8_ptr, pOverflow);
+ /* Lag windowing */
+ Lag_window(M, rHigh, rLow, pOverflow);
+ /* Levinson Durbin */
+ Levinson(st->levinsonSt, rHigh, rLow, &a[MP1 * 3], rc, pOverflow);
+ }
+ else
+ {
+ /* Autocorrelations */
+ Autocorr(x, M, rHigh, rLow, window_200_40_ptr, pOverflow);
+ /* Lag windowing */
+ Lag_window(M, rHigh, rLow, pOverflow);
+ /* Levinson Durbin */
+ Levinson(st->levinsonSt, rHigh, rLow, &a[MP1 * 3], rc, pOverflow);
+ }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: lpc.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : lpc.h
+ Purpose : 2 LP analyses centered at 2nd and 4th subframe
+ for mode 12.2. For all other modes a
+ LP analysis centered at 4th subframe is
+ performed.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _LPC_H_
+#define _LPC_H_
+#define lpc_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "levinson.h"
+#include "mode.h"
+#include "get_const_tbls.h"
+
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ LevinsonState *levinsonSt;
+ } lpcState;
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ Word16 lpc_init(lpcState **st);
+ /* initialize one instance of the pre processing state.
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to lpc in each call.
+ returns 0 on success
+ */
+
+ Word16 lpc_reset(lpcState *st);
+ /* reset of pre processing state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+ void lpc_exit(lpcState **st);
+ /* de-initialize pre processing state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ void lpc(
+ lpcState *st, /* i/o: State struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 x[], /* i : Input signal Q15 */
+ Word16 x_12k2[], /* i : Input signal (EFR) Q15 */
+ Word16 a[], /* o : predictor coefficients Q12 */
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct with table ptrs */
+ Flag *pOverflow
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LPC_H_ */
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ol_ltp.cpp
+ Functions: ol_ltp
+
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "ol_ltp.h"
+#include "cnst.h"
+#include "pitch_ol.h"
+#include "p_ol_wgh.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ol_ltp
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to pitchOLWghtState structure
+ vadSt = pointer to a vadState structure
+ mode = coder mode (Mode)
+ wsp = pointer to buffer of signal used to compute the Open loop pitch
+ T_op = pointer to open loop pitch lag
+ old_lags = pointer to history with old stored Cl lags (Word16)
+ ol_gain_flg = pointer to OL gain flag (Word16)
+ idx = 16 bit value specifies the frame index
+ dtx = Data of type 'Flag' used for dtx. Use dtx=1, do not use dtx=0
+ pOverflow = pointer to Overflow indicator (Flag)
+
+ Outputs:
+ pOverflow -> 1 if processing this funvction results in satuaration
+
+ Returns:
+ Zero
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes the open loop pitch lag.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ol_ltp.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int ol_ltp(
+ pitchOLWghtState *st, // i/o : State struct
+ vadState *vadSt, // i/o : VAD state struct
+ enum Mode mode, // i : coder mode
+ Word16 wsp[], // i : signal used to compute the OL pitch, Q0
+ // uses signal[-pit_max] to signal[-1]
+ Word16 *T_op, // o : open loop pitch lag, Q0
+ Word16 old_lags[], // i : history with old stored Cl lags
+ Word16 ol_gain_flg[], // i : OL gain flag
+ Word16 idx, // i : index
+ Flag dtx // i : dtx flag; use dtx=1, do not use dtx=0
+ )
+{
+ if (sub ((Word16)mode, (Word16)MR102) != 0 )
+ {
+ ol_gain_flg[0] = 0;
+ ol_gain_flg[1] = 0;
+ }
+
+ if (sub ((Word16)mode, (Word16)MR475) == 0 || sub ((Word16)mode, (Word16)MR515) == 0 )
+ {
+ *T_op = Pitch_ol(vadSt, mode, wsp, PIT_MIN, PIT_MAX, L_FRAME, idx, dtx);
+ }
+ else
+ {
+ if ( sub ((Word16)mode, (Word16)MR795) <= 0 )
+ {
+ *T_op = Pitch_ol(vadSt, mode, wsp, PIT_MIN, PIT_MAX, L_FRAME_BY2,
+ idx, dtx);
+ }
+ else if ( sub ((Word16)mode, (Word16)MR102) == 0 )
+ {
+ *T_op = Pitch_ol_wgh(st, vadSt, wsp, PIT_MIN, PIT_MAX, L_FRAME_BY2,
+ old_lags, ol_gain_flg, idx, dtx);
+ }
+ else
+ {
+ *T_op = Pitch_ol(vadSt, mode, wsp, PIT_MIN_MR122, PIT_MAX,
+ L_FRAME_BY2, idx, dtx);
+ }
+ }
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void ol_ltp(
+ pitchOLWghtState *st, /* i/o : State struct */
+ vadState *vadSt, /* i/o : VAD state struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 wsp[], /* i : signal used to compute the OL pitch, Q0 */
+ /* uses signal[-pit_max] to signal[-1] */
+ Word16 *T_op, /* o : open loop pitch lag, Q0 */
+ Word16 old_lags[], /* i : history with old stored Cl lags */
+ Word16 ol_gain_flg[], /* i : OL gain flag */
+ Word16 idx, /* i : index */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* i/o : overflow indicator */
+)
+{
+ if ((mode != MR102))
+ {
+ ol_gain_flg[0] = 0;
+ ol_gain_flg[1] = 0;
+ }
+
+ if ((mode == MR475) || (mode == MR515))
+ {
+ *T_op = Pitch_ol(vadSt, mode, wsp, PIT_MIN, PIT_MAX, L_FRAME, idx, dtx,
+ pOverflow);
+ }
+ else
+ {
+ if (mode <= MR795)
+ {
+ *T_op = Pitch_ol(vadSt, mode, wsp, PIT_MIN, PIT_MAX, L_FRAME_BY2,
+ idx, dtx, pOverflow);
+ }
+ else if (mode == MR102)
+ {
+ *T_op = Pitch_ol_wgh(st, vadSt, wsp, PIT_MIN, PIT_MAX, L_FRAME_BY2,
+ old_lags, ol_gain_flg, idx, dtx, pOverflow);
+ }
+ else
+ {
+ *T_op = Pitch_ol(vadSt, mode, wsp, PIT_MIN_MR122, PIT_MAX,
+ L_FRAME_BY2, idx, dtx, pOverflow);
+ }
+ }
+
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ol_ltp.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : ol_ltp.h
+ Purpose : Compute the open loop pitch lag.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef OL_LTP_H
+#define OL_LTP_H "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "p_ol_wgh.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ void ol_ltp(
+ pitchOLWghtState *st, /* i/o : State struct */
+ vadState *vadSt, /* i/o : VAD state struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 wsp[], /* i : signal used to compute the OL pitch, Q0 */
+ /* uses signal[-pit_max] to signal[-1] */
+ Word16 *T_op, /* o : open loop pitch lag, Q0 */
+ Word16 old_lags[], /* i : history with old stored Cl lags */
+ Word16 ol_gain_flg[], /* i : OL gain flag */
+ Word16 idx, /* i : index */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* i/o : overflow Flag */
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _OL_LTP_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: p_ol_wgh.cpp
+ Functions: p_ol_wgh_init
+ p_ol_wgh_reset
+ p_ol_wgh_exit
+ Lag_max
+ Pitch_ol_wgh
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ The modules in this file compute the open loop pitch lag with weighting.
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "p_ol_wgh.h"
+#include "typedef.h"
+#include "cnst.h"
+#include "basic_op.h"
+#include "gmed_n.h"
+#include "inv_sqrt.h"
+#include "vad1.h"
+#include "calc_cor.h"
+#include "hp_max.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: p_ol_wgh_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs
+ state = pointer to a pointer of structure type pitchOLWghtState
+
+ Outputs:
+ None
+
+ Returns:
+ 0 if the memory allocation is a success
+ -1 if the memory allocation fails
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function allocates state memory and initializes state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ p_ol_wgh.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int p_ol_wgh_init (pitchOLWghtState **state)
+{
+ pitchOLWghtState* s;
+
+ if (state == (pitchOLWghtState **) NULL){
+ // fprintf(stderr, "p_ol_wgh_init: invalid parameter\n");
+ return -1;
+ }
+ *state = NULL;
+
+ // allocate memory
+ if ((s= (pitchOLWghtState *) malloc(sizeof(pitchOLWghtState))) == NULL){
+ // fprintf(stderr, "p_ol_wgh_init: can not malloc state structure\n");
+ return -1;
+ }
+
+ p_ol_wgh_reset(s);
+
+ *state = s;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 p_ol_wgh_init(pitchOLWghtState **state)
+{
+ pitchOLWghtState* s;
+
+ if (state == (pitchOLWghtState **) NULL)
+ {
+ /* fprintf(stderr, "p_ol_wgh_init: invalid parameter\n"); */
+ return -1;
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (pitchOLWghtState *) oscl_malloc(sizeof(pitchOLWghtState))) == NULL)
+ {
+ /* fprintf(stderr, "p_ol_wgh_init: can not malloc state structure\n"); */
+ return -1;
+ }
+
+ p_ol_wgh_reset(s);
+
+ *state = s;
+
+ return 0;
+}
+
+/*----------------------------------------------------------------------------
+; End Function: p_ol_wgh_init
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: p_ol_wgh_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs
+ st = pointer to structure type pitchOLWghtState
+
+ Outputs:
+ None
+
+ Returns:
+ 0 if the memory initialization is a success
+ -1 if the memory initialization fails
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function initializes state memory to zero
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ p_ol_wgh.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int p_ol_wgh_reset (pitchOLWghtState *st)
+{
+ if (st == (pitchOLWghtState *) NULL){
+ // fprintf(stderr, "p_ol_wgh_reset: invalid parameter\n");
+ return -1;
+ }
+
+ // Reset pitch search states
+ st->old_T0_med = 40;
+ st->ada_w = 0;
+ st->wght_flg = 0;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 p_ol_wgh_reset(pitchOLWghtState *st)
+{
+ if (st == (pitchOLWghtState *) NULL)
+ {
+ /* fprintf(stderr, "p_ol_wgh_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ /* Reset pitch search states */
+ st->old_T0_med = 40;
+ st->ada_w = 0;
+ st->wght_flg = 0;
+
+ return 0;
+}
+
+/*----------------------------------------------------------------------------
+; End Function: p_ol_wgh_reset
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: p_ol_wgh_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs
+ st = pointer to a pointer of structure type pitchOLWghtState
+
+ Outputs:
+ None
+
+ Returns:
+ 0 if the memory initialization is a success
+ -1 if the memory initialization fails
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function frees the memory used for state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ p_ol_wgh.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void p_ol_wgh_exit (pitchOLWghtState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ // deallocate memory
+ free(*state);
+ *state = NULL;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void p_ol_wgh_exit(pitchOLWghtState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+
+/*----------------------------------------------------------------------------
+; End Function: p_ol_wgh_exit
+----------------------------------------------------------------------------*/
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Lag_max
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ corr = pointer to buffer of correlation values (Word32)
+ scal_sig = pointer to buffer of scaled signal values (Word16)
+ scal_fac = scaled signal factor (Word16)
+ scal_flag = EFR compatible scaling flag (Word16)
+ L_frame = length of frame to compute pitch (Word16)
+ lag_max = maximum lag (Word16)
+ lag_min = minimum lag (Word16)
+ cor_max = pointer to the normalized correlation of selected lag (Word16)
+ rmax = pointer to max(<s[i]*s[j]>), (Word32)
+ r0 = pointer to the residual energy (Word32)
+ dtx = dtx flag; equal to 1, if dtx is enabled, 0, otherwise (Flag)
+ pOverflow = Pointer to overflow (Flag)
+
+ Outputs:
+ cor_max contains the newly calculated normalized correlation of the
+ selected lag
+ rmax contains the newly calculated max(<s[i]*s[j]>)
+ r0 contains the newly calculated residual energy
+ pOverflow -> 1 if the math functions called by this routine saturate.
+
+ Returns:
+ p_max = lag of the max correlation found (Word16)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function finds the lag that has maximum correlation of scal_sig[] in a
+ given delay range.
+ The correlation is given by
+ cor[t] = <scal_sig[n],scal_sig[n-t]>, t=lag_min,...,lag_max
+ The functions outputs the maximum correlation after normalization and the
+ corresponding lag.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ p_ol_wgh.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static Word16 Lag_max ( // o : lag found
+ vadState *vadSt, // i/o : VAD state struct
+ Word32 corr[], // i : correlation vector.
+ Word16 scal_sig[], // i : scaled signal.
+ Word16 L_frame, // i : length of frame to compute pitch
+ Word16 lag_max, // i : maximum lag
+ Word16 lag_min, // i : minimum lag
+ Word16 old_lag, // i : old open-loop lag
+ Word16 *cor_max, // o : normalized correlation of selected lag
+ Word16 wght_flg, // i : is weighting function used
+ Word16 *gain_flg, // o : open-loop flag
+ Flag dtx // i : dtx flag; use dtx=1, do not use dtx=0
+ )
+{
+ Word16 i, j;
+ Word16 *p, *p1;
+ Word32 max, t0;
+ Word16 t0_h, t0_l;
+ Word16 p_max;
+ const Word16 *ww, *we;
+ Word32 t1;
+
+ ww = &corrweight[250];
+ we = &corrweight[123 + lag_max - old_lag];
+
+ max = MIN_32;
+ p_max = lag_max;
+
+ for (i = lag_max; i >= lag_min; i--)
+ {
+ t0 = corr[-i];
+
+ // Weighting of the correlation function.
+ L_Extract (corr[-i], &t0_h, &t0_l);
+ t0 = Mpy_32_16 (t0_h, t0_l, *ww);
+ ww--;
+ if (wght_flg > 0) {
+ // Weight the neighbourhood of the old lag
+ L_Extract (t0, &t0_h, &t0_l);
+ t0 = Mpy_32_16 (t0_h, t0_l, *we);
+ we--;
+ }
+
+ if (L_sub (t0, max) >= 0)
+ {
+ max = t0;
+ p_max = i;
+ }
+ }
+
+ p = &scal_sig[0];
+ p1 = &scal_sig[-p_max];
+ t0 = 0;
+ t1 = 0;
+
+ for (j = 0; j < L_frame; j++, p++, p1++)
+ {
+ t0 = L_mac (t0, *p, *p1);
+ t1 = L_mac (t1, *p1, *p1);
+ }
+
+ if (dtx)
+ { // no test() call since this if is only in simulation env
+#ifdef VAD2
+ vadSt->L_Rmax = L_add(vadSt->L_Rmax, t0); // Save max correlation
+ vadSt->L_R0 = L_add(vadSt->L_R0, t1); // Save max energy
+#else
+ // update and detect tone
+ vad_tone_detection_update (vadSt, 0);
+ vad_tone_detection (vadSt, t0, t1);
+#endif
+ }
+
+ // gain flag is set according to the open_loop gain
+ // is t2/t1 > 0.4 ?
+ *gain_flg = pv_round(L_msu(t0, pv_round(t1), 13107));
+
+ *cor_max = 0;
+
+ return (p_max);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 Lag_max( /* o : lag found */
+ vadState *vadSt, /* i/o : VAD state struct */
+ Word32 corr[], /* i : correlation vector. */
+ Word16 scal_sig[], /* i : scaled signal. */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 lag_max, /* i : maximum lag */
+ Word16 lag_min, /* i : minimum lag */
+ Word16 old_lag, /* i : old open-loop lag */
+ Word16 *cor_max, /* o : normalized correlation of selected lag */
+ Word16 wght_flg, /* i : is weighting function used */
+ Word16 *gain_flg, /* o : open-loop flag */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* o : overflow flag */
+)
+{
+ Word16 i;
+ Word16 j;
+ Word16 *p;
+ Word16 *p1;
+ Word32 max;
+ Word32 t0;
+ Word16 t0_h;
+ Word16 t0_l;
+ Word16 p_max;
+ const Word16 *ww;
+ const Word16 *we;
+ Word32 t1;
+ Word16 temp;
+
+ ww = &corrweight[250];
+ we = &corrweight[123 + lag_max - old_lag];
+
+ max = MIN_32;
+ p_max = lag_max;
+
+ for (i = lag_max; i >= lag_min; i--)
+ {
+ t0 = corr[-i];
+
+ /* Weighting of the correlation function. */
+ L_Extract(corr[-i], &t0_h, &t0_l, pOverflow);
+ t0 = Mpy_32_16(t0_h, t0_l, *ww, pOverflow);
+ ww--;
+ if (wght_flg > 0)
+ {
+ /* Weight the neighbourhood of the old lag. */
+ L_Extract(t0, &t0_h, &t0_l, pOverflow);
+ t0 = Mpy_32_16(t0_h, t0_l, *we, pOverflow);
+ we--;
+ }
+
+ /* if (L_sub (t0, max) >= 0) */
+ if (t0 >= max)
+ {
+ max = t0;
+ p_max = i;
+ }
+ }
+ p = &scal_sig[0];
+ p1 = &scal_sig[-p_max];
+ t0 = 0;
+ t1 = 0;
+
+ for (j = 0; j < L_frame; j++, p++, p1++)
+ {
+ t0 = L_mac(t0, *p, *p1, pOverflow);
+ t1 = L_mac(t1, *p1, *p1, pOverflow);
+ }
+
+ if (dtx)
+ { /* no test() call since this if is only in simulation env */
+#ifdef VAD2
+ /* Save max correlation */
+ vadSt->L_Rmax = L_add(vadSt->L_Rmax, t0, pOverflow);
+ /* Save max energy */
+ vadSt->L_R0 = L_add(vadSt->L_R0, t1, pOverflow);
+#else
+ /* update and detect tone */
+ vad_tone_detection_update(vadSt, 0, pOverflow);
+ vad_tone_detection(vadSt, t0, t1, pOverflow);
+#endif
+ }
+
+ /* gain flag is set according to the open_loop gain */
+ /* is t2/t1 > 0.4 ? */
+ temp = pv_round(t1, pOverflow);
+ t1 = L_msu(t0, temp, 13107, pOverflow);
+ *gain_flg = pv_round(t1, pOverflow);
+
+ *cor_max = 0;
+
+ return (p_max);
+}
+/*----------------------------------------------------------------------------
+; End Function: Lag_max
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pitch_ol_wgh
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to pitchOLWghtState structure
+ vadSt = pointer to a vadState structure
+ signal = pointer to buffer of signal used to compute the open loop
+ pitch where signal[-pit_max] to signal[-1] should be known
+ pit_min = 16 bit value specifies the minimum pitch lag
+ pit_max = 16 bit value specifies the maximum pitch lag
+ L_frame = 16 bit value specifies the length of frame to compute pitch
+ old_lags = pointer to history with old stored Cl lags (Word16)
+ ol_gain_flg = pointer to OL gain flag (Word16)
+ idx = 16 bit value specifies the frame index
+ dtx = Data of type 'Flag' used for dtx. Use dtx=1, do not use dtx=0
+ pOverflow = pointer to Overflow indicator (Flag)
+ Outputs
+ st = The pitchOLWghtState may be modified
+ vadSt = The vadSt state structure may be modified.
+ pOverflow -> 1 if the math functions invoked by this routine saturate.
+
+ Returns:
+ p_max1 = 16 bit value representing the open loop pitch lag.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs an open-loop pitch search with weighting
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_ol.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 Pitch_ol_wgh ( // o : open loop pitch lag
+ pitchOLWghtState *st, // i/o : State struct
+ vadState *vadSt, // i/o : VAD state struct/
+ Word16 signal[], // i : signal used to compute the open loop pitch
+ // signal[-pit_max] to signal[-1] should be known
+ Word16 pit_min, // i : minimum pitch lag
+ Word16 pit_max, // i : maximum pitch lag
+ Word16 L_frame, // i : length of frame to compute pitch
+ Word16 old_lags[], // i : history with old stored Cl lags
+ Word16 ol_gain_flg[], // i : OL gain flag
+ Word16 idx, // i : index
+ Flag dtx // i : dtx flag; use dtx=1, do not use dtx=0
+ )
+{
+ Word16 i;
+ Word16 max1;
+ Word16 p_max1;
+ Word32 t0;
+#ifndef VAD2
+ Word16 corr_hp_max;
+#endif
+ Word32 corr[PIT_MAX+1], *corr_ptr;
+
+ // Scaled signal
+ Word16 scaled_signal[PIT_MAX + L_FRAME];
+ Word16 *scal_sig;
+
+ scal_sig = &scaled_signal[pit_max];
+
+ t0 = 0L;
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ t0 = L_mac (t0, signal[i], signal[i]);
+ }
+ //
+ // Scaling of input signal
+ //
+ // if Overflow -> scal_sig[i] = signal[i]>>2
+ // else if t0 < 1^22 -> scal_sig[i] = signal[i]<<2
+ // else -> scal_sig[i] = signal[i]
+
+ //
+ // Verification for risk of overflow.
+ //
+
+ // Test for overflow
+ if (L_sub (t0, MAX_32) == 0L)
+ {
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ scal_sig[i] = shr (signal[i], 3);
+ }
+ }
+ else if (L_sub (t0, (Word32) 1048576L) < (Word32) 0)
+ {
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ scal_sig[i] = shl (signal[i], 3);
+ }
+ }
+ else
+ {
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ scal_sig[i] = signal[i];
+ }
+ }
+
+ // calculate all coreelations of scal_sig, from pit_min to pit_max
+ corr_ptr = &corr[pit_max];
+ comp_corr (scal_sig, L_frame, pit_max, pit_min, corr_ptr);
+
+ p_max1 = Lag_max (vadSt, corr_ptr, scal_sig, L_frame, pit_max, pit_min,
+ st->old_T0_med, &max1, st->wght_flg, &ol_gain_flg[idx],
+ dtx);
+
+ if (ol_gain_flg[idx] > 0)
+ {
+ // Calculate 5-point median of previous lag
+ for (i = 4; i > 0; i--) // Shift buffer
+ {
+ old_lags[i] = old_lags[i-1];
+ }
+ old_lags[0] = p_max1;
+ st->old_T0_med = gmed_n (old_lags, 5);
+ st->ada_w = 32767; // Q15 = 1.0
+ }
+ else
+ {
+ st->old_T0_med = p_max1;
+ st->ada_w = mult(st->ada_w, 29491); // = ada_w = ada_w * 0.9
+ }
+
+ if (sub(st->ada_w, 9830) < 0) // ada_w - 0.3
+ {
+ st->wght_flg = 0;
+ }
+ else
+ {
+ st->wght_flg = 1;
+ }
+
+#ifndef VAD2
+ if (dtx)
+ { // no test() call since this if is only in simulation env
+ if (sub(idx, 1) == 0)
+ {
+ // calculate max high-passed filtered correlation of all lags
+ hp_max (corr_ptr, scal_sig, L_frame, pit_max, pit_min, &corr_hp_max);
+
+ // update complex background detector
+ vad_complex_detection_update(vadSt, corr_hp_max);
+ }
+ }
+#endif
+
+ return (p_max1);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Pitch_ol_wgh( /* o : open loop pitch lag */
+ pitchOLWghtState *st, /* i/o : State struct */
+ vadState *vadSt, /* i/o : VAD state struct */
+ Word16 signal[], /* i : signal used to compute the open loop pitch */
+ /* signal[-pit_max] to signal[-1] should be known */
+ Word16 pit_min, /* i : minimum pitch lag */
+ Word16 pit_max, /* i : maximum pitch lag */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 old_lags[], /* i : history with old stored Cl lags */
+ Word16 ol_gain_flg[], /* i : OL gain flag */
+ Word16 idx, /* i : index */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* o : overflow flag */
+)
+{
+ Word16 i;
+ Word16 max1;
+ Word16 p_max1;
+ Word32 t0;
+#ifndef VAD2
+ Word16 corr_hp_max;
+#endif
+ Word32 corr[PIT_MAX+1], *corr_ptr;
+
+ /* Scaled signal */
+ Word16 scaled_signal[PIT_MAX + L_FRAME];
+ Word16 *scal_sig;
+
+ scal_sig = &scaled_signal[pit_max];
+
+ t0 = 0L;
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ t0 = L_mac(t0, signal[i], signal[i], pOverflow);
+ }
+ /*--------------------------------------------------------*
+ * Scaling of input signal. *
+ * *
+ * if Overflow -> scal_sig[i] = signal[i]>>2 *
+ * else if t0 < 1^22 -> scal_sig[i] = signal[i]<<2 *
+ * else -> scal_sig[i] = signal[i] *
+ *--------------------------------------------------------*/
+
+ /*--------------------------------------------------------*
+ * Verification for risk of overflow. *
+ *--------------------------------------------------------*/
+
+ /* Test for overflow */
+ if (L_sub(t0, MAX_32, pOverflow) == 0L)
+ {
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ scal_sig[i] = shr(signal[i], 3, pOverflow);
+ }
+ }
+ else if (L_sub(t0, (Word32) 1048576L, pOverflow) < (Word32) 0)
+ {
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ scal_sig[i] = shl(signal[i], 3, pOverflow);
+ }
+ }
+ else
+ {
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ scal_sig[i] = signal[i];
+ }
+ }
+
+ /* calculate all coreelations of scal_sig, from pit_min to pit_max */
+ corr_ptr = &corr[pit_max];
+ comp_corr(scal_sig, L_frame, pit_max, pit_min, corr_ptr);
+
+ p_max1 = Lag_max(vadSt, corr_ptr, scal_sig, L_frame, pit_max, pit_min,
+ st->old_T0_med, &max1, st->wght_flg, &ol_gain_flg[idx],
+ dtx, pOverflow);
+
+ if (ol_gain_flg[idx] > 0)
+ {
+ /* Calculate 5-point median of previous lags */
+ for (i = 4; i > 0; i--) /* Shift buffer */
+ {
+ old_lags[i] = old_lags[i-1];
+ }
+ old_lags[0] = p_max1;
+ st->old_T0_med = gmed_n(old_lags, 5);
+ st->ada_w = 32767; /* Q15 = 1.0 */
+ }
+ else
+ {
+ st->old_T0_med = p_max1;
+ /* = ada_w = ada_w * 0.9 */
+ st->ada_w = (Word16)((Word32)(st->ada_w * 29491) >> 15);
+ }
+
+ if (sub(st->ada_w, 9830, pOverflow) < 0) /* ada_w - 0.3 */
+ {
+ st->wght_flg = 0;
+ }
+ else
+ {
+ st->wght_flg = 1;
+ }
+
+#ifndef VAD2
+ if (dtx)
+ { /* no test() call since this if is only in simulation env */
+ if (sub(idx, 1, pOverflow) == 0)
+ {
+ /* calculate max high-passed filtered correlation of all lags */
+ hp_max(corr_ptr, scal_sig, L_frame, pit_max, pit_min, &corr_hp_max, pOverflow);
+
+ /* update complex background detector */
+ vad_complex_detection_update(vadSt, corr_hp_max);
+ }
+ }
+#endif
+
+ return (p_max1);
+}
+
+/*----------------------------------------------------------------------------
+; End Function: Pitch_ol_wgh
+----------------------------------------------------------------------------*/
+
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pitch_fr.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ File : pitch_fr.c
+ Purpose : Find the pitch period with 1/3 or 1/6 subsample
+ : resolution (closed loop).
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pitch_fr.h"
+#include "oper_32b.h"
+#include "cnst.h"
+#include "enc_lag3.h"
+#include "enc_lag6.h"
+#include "inter_36.h"
+#include "inv_sqrt.h"
+#include "convolve.h"
+
+#include "basic_op.h"
+#include "oscl_mem.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+ * mode dependent parameters used in Pitch_fr()
+ * Note: order of MRxx in 'enum Mode' is important!
+ */
+static const struct
+{
+ Word16 max_frac_lag; /* lag up to which fractional lags are used */
+ Word16 flag3; /* enable 1/3 instead of 1/6 fract. resolution */
+ Word16 first_frac; /* first fractional to check */
+ Word16 last_frac; /* last fractional to check */
+ Word16 delta_int_low; /* integer lag below TO to start search from */
+ Word16 delta_int_range; /* integer range around T0 */
+ Word16 delta_frc_low; /* fractional below T0 */
+ Word16 delta_frc_range; /* fractional range around T0 */
+ Word16 pit_min; /* minimum pitch */
+} mode_dep_parm[N_MODES] =
+{
+ /* MR475 */ { 84, 1, -2, 2, 5, 10, 5, 9, PIT_MIN },
+ /* MR515 */ { 84, 1, -2, 2, 5, 10, 5, 9, PIT_MIN },
+ /* MR59 */ { 84, 1, -2, 2, 3, 6, 5, 9, PIT_MIN },
+ /* MR67 */ { 84, 1, -2, 2, 3, 6, 5, 9, PIT_MIN },
+ /* MR74 */ { 84, 1, -2, 2, 3, 6, 5, 9, PIT_MIN },
+ /* MR795 */ { 84, 1, -2, 2, 3, 6, 10, 19, PIT_MIN },
+ /* MR102 */ { 84, 1, -2, 2, 3, 6, 5, 9, PIT_MIN },
+ /* MR122 */ { 94, 0, -3, 3, 3, 6, 5, 9, PIT_MIN_MR122 }
+};
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Norm_Corr
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ exc[] = pointer to buffer of type Word16
+ xn[] = pointer to buffer of type Word16
+ h[] = pointer to buffer of type Word16
+ L_subfr = length of sub frame (Word16)
+ t_min = the minimum table value of type Word16
+ t_max = the maximum table value of type Word16
+ corr_norm[] = pointer to buffer of type Word16
+
+ Outputs:
+ pOverflow = 1 if the math functions called result in overflow else zero.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ FUNCTION: Norm_Corr()
+
+ PURPOSE: Find the normalized correlation between the target vector
+ and the filtered past excitation.
+
+ DESCRIPTION:
+ The normalized correlation is given by the correlation between the
+ target and filtered past excitation divided by the square root of
+ the energy of filtered excitation.
+ corr[k] = <x[], y_k[]>/sqrt(y_k[],y_k[])
+ where x[] is the target vector and y_k[] is the filtered past
+ excitation at delay k.
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_fr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static void Norm_Corr (Word16 exc[], Word16 xn[], Word16 h[], Word16 L_subfr,
+ Word16 t_min, Word16 t_max, Word16 corr_norm[])
+{
+ Word16 i, j, k;
+ Word16 corr_h, corr_l, norm_h, norm_l;
+ Word32 s;
+
+ // Usally dynamic allocation of (L_subfr)
+ Word16 excf[L_SUBFR];
+ Word16 scaling, h_fac, *s_excf, scaled_excf[L_SUBFR];
+
+ k = -t_min;
+
+ // compute the filtered excitation for the first delay t_min
+
+ Convolve (&exc[k], h, excf, L_subfr);
+
+ // scale "excf[]" to avoid overflow
+
+ for (j = 0; j < L_subfr; j++) {
+ scaled_excf[j] = shr (excf[j], 2);
+ }
+
+ // Compute 1/sqrt(energy of excf[])
+
+ s = 0;
+ for (j = 0; j < L_subfr; j++) {
+ s = L_mac (s, excf[j], excf[j]);
+ }
+ if (L_sub (s, 67108864L) <= 0) { // if (s <= 2^26)
+ s_excf = excf;
+ h_fac = 15 - 12;
+ scaling = 0;
+ }
+ else {
+ // "excf[]" is divided by 2
+ s_excf = scaled_excf;
+ h_fac = 15 - 12 - 2;
+ scaling = 2;
+ }
+
+ // loop for every possible period
+
+ for (i = t_min; i <= t_max; i++) {
+ // Compute 1/sqrt(energy of excf[])
+
+ s = 0;
+ for (j = 0; j < L_subfr; j++) {
+ s = L_mac (s, s_excf[j], s_excf[j]);
+ }
+
+ s = Inv_sqrt (s);
+ L_Extract (s, &norm_h, &norm_l);
+
+ // Compute correlation between xn[] and excf[]
+
+ s = 0;
+ for (j = 0; j < L_subfr; j++) {
+ s = L_mac (s, xn[j], s_excf[j]);
+ }
+ L_Extract (s, &corr_h, &corr_l);
+
+ // Normalize correlation = correlation * (1/sqrt(energy))
+
+ s = Mpy_32 (corr_h, corr_l, norm_h, norm_l);
+
+ corr_norm[i] = extract_h (L_shl (s, 16));
+
+ // modify the filtered excitation excf[] for the next iteration
+
+ if (sub (i, t_max) != 0) {
+ k--;
+ for (j = L_subfr - 1; j > 0; j--) {
+ s = L_mult (exc[k], h[j]);
+ s = L_shl (s, h_fac);
+ s_excf[j] = add (extract_h (s), s_excf[j - 1]);
+ }
+ s_excf[0] = shr (exc[k], scaling);
+ }
+ }
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void Norm_Corr(Word16 exc[],
+ Word16 xn[],
+ Word16 h[],
+ Word16 L_subfr,
+ Word16 t_min,
+ Word16 t_max,
+ Word16 corr_norm[],
+ Flag *pOverflow)
+{
+ Word16 i;
+ Word16 j;
+ Word16 k;
+ Word16 corr_h;
+ Word16 corr_l;
+ Word16 norm_h;
+ Word16 norm_l;
+ Word32 s;
+ Word32 s2;
+ Word16 excf[L_SUBFR];
+ Word16 scaling;
+ Word16 h_fac;
+ Word16 *s_excf;
+ Word16 scaled_excf[L_SUBFR];
+ Word16 *p_s_excf;
+ Word16 *p_excf;
+ Word16 temp;
+ Word16 *p_x;
+ Word16 *p_h;
+
+ k = -t_min;
+
+ /* compute the filtered excitation for the first delay t_min */
+
+ Convolve(&exc[k], h, excf, L_subfr);
+
+ /* scale "excf[]" to avoid overflow */
+ s = 0;
+ p_s_excf = scaled_excf;
+ p_excf = excf;
+
+ for (j = (L_subfr >> 1); j != 0; j--)
+ {
+ temp = *(p_excf++);
+ *(p_s_excf++) = temp >> 2;
+ s += (Word32) temp * temp;
+ temp = *(p_excf++);
+ *(p_s_excf++) = temp >> 2;
+ s += (Word32) temp * temp;
+ }
+
+
+ if (s <= (67108864L >> 1))
+ {
+ s_excf = excf;
+ h_fac = 12;
+ scaling = 0;
+ }
+ else
+ {
+ /* "excf[]" is divided by 2 */
+ s_excf = scaled_excf;
+ h_fac = 14;
+ scaling = 2;
+ }
+
+ /* loop for every possible period */
+
+ for (i = t_min; i <= t_max; i++)
+ {
+ /* Compute 1/sqrt(energy of excf[]) */
+
+ s = s2 = 0;
+ p_x = xn;
+ p_s_excf = s_excf;
+ j = L_subfr >> 1;
+
+ while (j--)
+ {
+ s += (Word32) * (p_x++) * *(p_s_excf);
+ s2 += ((Word32)(*(p_s_excf)) * (*(p_s_excf)));
+ p_s_excf++;
+ s += (Word32) * (p_x++) * *(p_s_excf);
+ s2 += ((Word32)(*(p_s_excf)) * (*(p_s_excf)));
+ p_s_excf++;
+ }
+
+ s2 = s2 << 1;
+ s2 = Inv_sqrt(s2, pOverflow);
+ norm_h = (Word16)(s2 >> 16);
+ norm_l = (Word16)((s2 >> 1) - (norm_h << 15));
+ corr_h = (Word16)(s >> 15);
+ corr_l = (Word16)((s) - (corr_h << 15));
+
+ /* Normalize correlation = correlation * (1/sqrt(energy)) */
+
+ s = Mpy_32(corr_h, corr_l, norm_h, norm_l, pOverflow);
+
+ corr_norm[i] = (Word16) s ;
+
+ /* modify the filtered excitation excf[] for the next iteration */
+ if (i != t_max)
+ {
+ k--;
+ temp = exc[k];
+ p_s_excf = &s_excf[L_subfr - 1];
+ p_h = &h[L_subfr - 1];
+
+ p_excf = &s_excf[L_subfr - 2];
+ for (j = (L_subfr - 1) >> 1; j != 0; j--)
+ {
+ s = ((Word32) temp * *(p_h--)) >> h_fac;
+ *(p_s_excf--) = (Word16) s + *(p_excf--);
+ s = ((Word32) temp * *(p_h--)) >> h_fac;
+ *(p_s_excf--) = (Word16) s + *(p_excf--);
+ }
+
+ s = ((Word32) temp * *(p_h)) >> h_fac;
+ *(p_s_excf--) = (Word16) s + *(p_excf);
+
+ *(p_s_excf) = temp >> scaling;
+ }
+
+ }
+ return;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: searchFrac
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ lag = pointer to integer pitch of type Word16
+ frac = pointer to starting point of search fractional pitch of type Word16
+ last_frac = endpoint of search of type Word16
+ corr[] = pointer to normalized correlation of type Word16
+ flag3 = subsample resolution (3: =1 / 6: =0) of type Word16
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ FUNCTION: searchFrac()
+
+ PURPOSE: Find fractional pitch
+
+ DESCRIPTION:
+ The function interpolates the normalized correlation at the
+ fractional positions around lag T0. The position at which the
+ interpolation function reaches its maximum is the fractional pitch.
+ Starting point of the search is frac, end point is last_frac.
+ frac is overwritten with the fractional pitch.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_fr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static void searchFrac (
+ Word16 *lag, // i/o : integer pitch
+ Word16 *frac, // i/o : start point of search -
+ fractional pitch
+ Word16 last_frac, // i : endpoint of search
+ Word16 corr[], // i : normalized correlation
+ Word16 flag3 // i : subsample resolution
+ (3: =1 / 6: =0)
+)
+{
+ Word16 i;
+ Word16 max;
+ Word16 corr_int;
+
+ // Test the fractions around T0 and choose the one which maximizes
+ // the interpolated normalized correlation.
+
+ max = Interpol_3or6 (&corr[*lag], *frac, flag3); // function result
+
+ for (i = add (*frac, 1); i <= last_frac; i++) {
+ corr_int = Interpol_3or6 (&corr[*lag], i, flag3);
+ if (sub (corr_int, max) > 0) {
+ max = corr_int;
+ *frac = i;
+ }
+ }
+
+ if (flag3 == 0) {
+ // Limit the fraction value in the interval [-2,-1,0,1,2,3]
+
+ if (sub (*frac, -3) == 0) {
+ *frac = 3;
+ *lag = sub (*lag, 1);
+ }
+ }
+ else {
+ // limit the fraction value between -1 and 1
+
+ if (sub (*frac, -2) == 0) {
+ *frac = 1;
+ *lag = sub (*lag, 1);
+ }
+ if (sub (*frac, 2) == 0) {
+ *frac = -1;
+ *lag = add (*lag, 1);
+ }
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void searchFrac(
+ Word16 *lag, /* i/o : integer pitch */
+ Word16 *frac, /* i/o : start point of search -
+ fractional pitch */
+ Word16 last_frac, /* i : endpoint of search */
+ Word16 corr[], /* i : normalized correlation */
+ Word16 flag3, /* i : subsample resolution
+ (3: =1 / 6: =0) */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+ Word16 max;
+ Word16 corr_int;
+
+ /* Test the fractions around T0 and choose the one which maximizes */
+ /* the interpolated normalized correlation. */
+
+ max = Interpol_3or6(&corr[*lag], *frac, flag3, pOverflow);
+ /* function result */
+
+ for (i = *frac + 1; i <= last_frac; i++)
+ {
+ corr_int = Interpol_3or6(&corr[*lag], i, flag3, pOverflow);
+ if (corr_int > max)
+ {
+ max = corr_int;
+ *frac = i;
+ }
+ }
+
+ if (flag3 == 0)
+ {
+ /* Limit the fraction value in the interval [-2,-1,0,1,2,3] */
+
+ if (*frac == -3)
+ {
+ *frac = 3;
+ (*lag)--;
+ }
+ }
+ else
+ {
+ /* limit the fraction value between -1 and 1 */
+
+ if (*frac == -2)
+ {
+ *frac = 1;
+ (*lag)--;
+ }
+ if (*frac == 2)
+ {
+ *frac = -1;
+ (*lag)++;
+ }
+ }
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: getRange
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ T0 = integer pitch of type Word16
+ delta_low = search start offset of type Word16
+ delta_range = search range of type Word16
+ pitmin = minimum pitch of type Word16
+ pitmax = maximum pitch of type Word16
+ t0_min = search range minimum of type Word16
+ t0_max = search range maximum of type Word16
+
+ Outputs:
+ pOverflow = 1 if the math functions called result in overflow else zero.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ FUNCTION: getRange()
+
+ PURPOSE: Sets range around open-loop pitch or integer pitch of last subframe
+
+ DESCRIPTION:
+ Takes integer pitch T0 and calculates a range around it with
+ t0_min = T0-delta_low and t0_max = (T0-delta_low) + delta_range
+ t0_min and t0_max are bounded by pitmin and pitmax
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_fr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static void getRange (
+ Word16 T0, // i : integer pitch
+ Word16 delta_low, // i : search start offset
+ Word16 delta_range, // i : search range
+ Word16 pitmin, // i : minimum pitch
+ Word16 pitmax, // i : maximum pitch
+ Word16 *t0_min, // o : search range minimum
+ Word16 *t0_max) // o : search range maximum
+{
+ *t0_min = sub(T0, delta_low);
+ if (sub(*t0_min, pitmin) < 0) {
+ *t0_min = pitmin;
+ }
+ *t0_max = add(*t0_min, delta_range);
+ if (sub(*t0_max, pitmax) > 0) {
+ *t0_max = pitmax;
+ *t0_min = sub(*t0_max, delta_range);
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+static void getRange(
+ Word16 T0, /* i : integer pitch */
+ Word16 delta_low, /* i : search start offset */
+ Word16 delta_range, /* i : search range */
+ Word16 pitmin, /* i : minimum pitch */
+ Word16 pitmax, /* i : maximum pitch */
+ Word16 *t0_min, /* o : search range minimum */
+ Word16 *t0_max, /* o : search range maximum */
+ Flag *pOverflow)
+{
+
+ Word16 temp;
+ OSCL_UNUSED_ARG(pOverflow);
+
+ temp = *t0_min;
+ temp = T0 - delta_low;
+ if (temp < pitmin)
+ {
+ temp = pitmin;
+ }
+ *t0_min = temp;
+
+ temp += delta_range;
+ if (temp > pitmax)
+ {
+ temp = pitmax;
+ *t0_min = pitmax - delta_range;
+ }
+ *t0_max = temp;
+
+}
+
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pitch_fr_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a pointer of structure type Pitch_fr_State.
+
+ Outputs:
+ None
+
+ Returns:
+ Returns a zero if successful and -1 if not successful.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function: Pitch_fr_init
+ Purpose: Allocates state memory and initializes state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_fr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Pitch_fr_init (Pitch_frState **state)
+{
+ Pitch_frState* s;
+
+ if (state == (Pitch_frState **) NULL){
+ // fprintf(stderr, "Pitch_fr_init: invalid parameter\n");
+ return -1;
+ }
+ *state = NULL;
+
+ // allocate memory
+ if ((s= (Pitch_frState *) malloc(sizeof(Pitch_frState))) == NULL){
+ // fprintf(stderr, "Pitch_fr_init: can not malloc state structure\n");
+ return -1;
+ }
+
+ Pitch_fr_reset(s);
+ *state = s;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 Pitch_fr_init(Pitch_frState **state)
+{
+ Pitch_frState* s;
+
+ if (state == (Pitch_frState **) NULL)
+ {
+ /* fprintf(stderr, "Pitch_fr_init: invalid parameter\n"); */
+ return -1;
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (Pitch_frState *) oscl_malloc(sizeof(Pitch_frState))) == NULL)
+ {
+ /* fprintf(stderr, "Pitch_fr_init: can not malloc state structure\n"); */
+ return -1;
+ }
+
+ Pitch_fr_reset(s);
+ *state = s;
+
+ return 0;
+}
+
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pitch_fr_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a pointer of structure type Pitch_fr_State.
+
+ Outputs:
+ None
+
+ Returns:
+ Returns a zero if successful and -1 if not successful.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function: Pitch_fr_reset
+ Purpose: Initializes state memory to zero
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_fr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Pitch_fr_reset (Pitch_frState *state)
+{
+
+ if (state == (Pitch_frState *) NULL){
+ // fprintf(stderr, "Pitch_fr_reset: invalid parameter\n");
+ return -1;
+ }
+
+ state->T0_prev_subframe = 0;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 Pitch_fr_reset(Pitch_frState *state)
+{
+
+ if (state == (Pitch_frState *) NULL)
+ {
+ /* fprintf(stderr, "Pitch_fr_reset: invalid parameter\n"); */
+ return -1;
+ }
+
+ state->T0_prev_subframe = 0;
+
+ return 0;
+}
+
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pitch_fr_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a pointer of structure type Pitch_fr_State.
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function: Pitch_fr_exit
+ Purpose: The memory for state is freed.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_fr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Pitch_fr_exit (Pitch_frState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ // deallocate memory
+ free(*state);
+ *state = NULL;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void Pitch_fr_exit(Pitch_frState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pitch_fr
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to stat structure of type Pitch_frState
+ mode = codec mode of type enum Mode
+ T_op[] = pointer to open loop pitch lags of type Word16
+ exc[] = pointer to excitation buffer of type Word16
+ xn[] = pointer to target vector of type Word16
+ h[] = pointer to impulse response of synthesis and weighting filters
+ of type Word16
+ L_subfr = length of subframe of type Word16
+ i_subfr = subframe offset of type Word16
+
+ Outputs:
+ pit_frac = pointer to pitch period (fractional) of type Word16
+ resu3 = pointer to subsample resolution of type Word16
+ ana_index = pointer to index of encoding of type Word16
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ FUNCTION: Pitch_fr()
+
+ PURPOSE: Find the pitch period with 1/3 or 1/6 subsample resolution
+ (closed loop).
+
+ DESCRIPTION:
+ - find the normalized correlation between the target and filtered
+ past excitation in the search range.
+ - select the delay with maximum normalized correlation.
+ - interpolate the normalized correlation at fractions -3/6 to 3/6
+ with step 1/6 around the chosen delay.
+ - The fraction which gives the maximum interpolated value is chosen.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_fr.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 Pitch_fr ( // o : pitch period (integer)
+ Pitch_frState *st, // i/o : State struct
+ enum Mode mode, // i : codec mode
+ Word16 T_op[], // i : open loop pitch lags
+ Word16 exc[], // i : excitation buffer Q0
+ Word16 xn[], // i : target vector Q0
+ Word16 h[], // i : impulse response of synthesis and
+ weighting filters Q12
+ Word16 L_subfr, // i : Length of subframe
+ Word16 i_subfr, // i : subframe offset
+ Word16 *pit_frac, // o : pitch period (fractional)
+ Word16 *resu3, // o : subsample resolution 1/3 (=1) or 1/6 (=0)
+ Word16 *ana_index // o : index of encoding
+)
+{
+ Word16 i;
+ Word16 t_min, t_max;
+ Word16 t0_min, t0_max;
+ Word16 max, lag, frac;
+ Word16 tmp_lag;
+ Word16 *corr;
+ Word16 corr_v[40]; // Total length = t0_max-t0_min+1+2*L_INTER_SRCH
+
+ Word16 max_frac_lag;
+ Word16 flag3, flag4;
+ Word16 last_frac;
+ Word16 delta_int_low, delta_int_range;
+ Word16 delta_frc_low, delta_frc_range;
+ Word16 pit_min;
+ Word16 frame_offset;
+ Word16 delta_search;
+
+ //-----------------------------------------------------------------------
+ // set mode specific variables
+ //----------------------------------------------------------------------
+
+ max_frac_lag = mode_dep_parm[mode].max_frac_lag;
+ flag3 = mode_dep_parm[mode].flag3;
+ frac = mode_dep_parm[mode].first_frac;
+ last_frac = mode_dep_parm[mode].last_frac;
+ delta_int_low = mode_dep_parm[mode].delta_int_low;
+ delta_int_range = mode_dep_parm[mode].delta_int_range;
+
+ delta_frc_low = mode_dep_parm[mode].delta_frc_low;
+ delta_frc_range = mode_dep_parm[mode].delta_frc_range;
+ pit_min = mode_dep_parm[mode].pit_min;
+
+ //-----------------------------------------------------------------------
+ // decide upon full or differential search
+ //-----------------------------------------------------------------------
+
+ delta_search = 1;
+
+ if ((i_subfr == 0) || (sub(i_subfr,L_FRAME_BY2) == 0)) {
+
+ // Subframe 1 and 3
+
+ if (((sub((Word16)mode, (Word16)MR475) != 0) && (sub((Word16)mode,
+ (Word16)MR515) != 0)) ||
+ (sub(i_subfr,L_FRAME_BY2) != 0)) {
+
+ // set t0_min, t0_max for full search
+ // this is *not* done for mode MR475, MR515 in subframe 3
+
+ delta_search = 0; // no differential search
+
+ // calculate index into T_op which contains the open-loop
+ // pitch estimations for the 2 big subframes
+
+ frame_offset = 1;
+ if (i_subfr == 0)
+ frame_offset = 0;
+
+ // get T_op from the corresponding half frame and
+ // set t0_min, t0_max
+
+ getRange (T_op[frame_offset], delta_int_low, delta_int_range,
+ pit_min, PIT_MAX, &t0_min, &t0_max);
+ }
+ else {
+
+ // mode MR475, MR515 and 3. Subframe: delta search as well
+ getRange (st->T0_prev_subframe, delta_frc_low, delta_frc_range,
+ pit_min, PIT_MAX, &t0_min, &t0_max);
+ }
+ }
+ else {
+
+ // for Subframe 2 and 4
+ // get range around T0 of previous subframe for delta search
+
+ getRange (st->T0_prev_subframe, delta_frc_low, delta_frc_range,
+ pit_min, PIT_MAX, &t0_min, &t0_max);
+ }
+
+ //-----------------------------------------------------------------------
+ Find interval to compute normalized correlation
+ -----------------------------------------------------------------------
+
+ t_min = sub (t0_min, L_INTER_SRCH);
+ t_max = add (t0_max, L_INTER_SRCH);
+
+ corr = &corr_v[-t_min];
+
+ //-----------------------------------------------------------------------
+ Compute normalized correlation between target and filtered excitation
+ -----------------------------------------------------------------------
+
+ Norm_Corr (exc, xn, h, L_subfr, t_min, t_max, corr);
+
+ //-----------------------------------------------------------------------
+ Find integer pitch
+ -----------------------------------------------------------------------
+
+ max = corr[t0_min];
+ lag = t0_min;
+
+ for (i = t0_min + 1; i <= t0_max; i++) {
+ if (sub (corr[i], max) >= 0) {
+ max = corr[i];
+ lag = i;
+ }
+ }
+
+ //-----------------------------------------------------------------------
+ Find fractional pitch
+ -----------------------------------------------------------------------
+ if ((delta_search == 0) && (sub (lag, max_frac_lag) > 0)) {
+
+ // full search and integer pitch greater than max_frac_lag
+ // fractional search is not needed, set fractional to zero
+
+ frac = 0;
+ }
+ else {
+
+ // if differential search AND mode MR475 OR MR515 OR MR59 OR MR67
+ // then search fractional with 4 bits resolution
+
+ if ((delta_search != 0) &&
+ ((sub ((Word16)mode, (Word16)MR475) == 0) ||
+ (sub ((Word16)mode, (Word16)MR515) == 0) ||
+ (sub ((Word16)mode, (Word16)MR59) == 0) ||
+ (sub ((Word16)mode, (Word16)MR67) == 0))) {
+
+ // modify frac or last_frac according to position of last
+ // integer pitch: either search around integer pitch,
+ // or only on left or right side
+
+ tmp_lag = st->T0_prev_subframe;
+ if ( sub( sub(tmp_lag, t0_min), 5) > 0)
+ tmp_lag = add (t0_min, 5);
+ if ( sub( sub(t0_max, tmp_lag), 4) > 0)
+ tmp_lag = sub (t0_max, 4);
+
+ if ((sub (lag, tmp_lag) == 0) ||
+ (sub (lag, sub(tmp_lag, 1)) == 0)) {
+
+ // normal search in fractions around T0
+
+ searchFrac (&lag, &frac, last_frac, corr, flag3);
+
+ }
+ else if (sub (lag, sub (tmp_lag, 2)) == 0) {
+ // limit search around T0 to the right side
+ frac = 0;
+ searchFrac (&lag, &frac, last_frac, corr, flag3);
+ }
+ else if (sub (lag, add(tmp_lag, 1)) == 0) {
+ // limit search around T0 to the left side
+ last_frac = 0;
+ searchFrac (&lag, &frac, last_frac, corr, flag3);
+ }
+ else {
+ // no fractional search
+ frac = 0;
+ }
+ }
+ else
+ // test the fractions around T0
+ searchFrac (&lag, &frac, last_frac, corr, flag3);
+ }
+
+ //-----------------------------------------------------------------------
+ // encode pitch
+ //-----------------------------------------------------------------------
+
+ if (flag3 != 0) {
+ // flag4 indicates encoding with 4 bit resolution;
+ // this is needed for mode MR475, MR515 and MR59
+
+ flag4 = 0;
+ if ( (sub ((Word16)mode, (Word16)MR475) == 0) ||
+ (sub ((Word16)mode, (Word16)MR515) == 0) ||
+ (sub ((Word16)mode, (Word16)MR59) == 0) ||
+ (sub ((Word16)mode, (Word16)MR67) == 0) ) {
+ flag4 = 1;
+ }
+
+ // encode with 1/3 subsample resolution
+
+ *ana_index = Enc_lag3(lag, frac, st->T0_prev_subframe,
+ t0_min, t0_max, delta_search, flag4);
+ // function result
+
+ }
+ else
+ {
+ // encode with 1/6 subsample resolution
+
+ *ana_index = Enc_lag6(lag, frac, t0_min, delta_search);
+ // function result
+ }
+
+ //-----------------------------------------------------------------------
+ // update state variables
+ //-----------------------------------------------------------------------
+
+ st->T0_prev_subframe = lag;
+
+ //-----------------------------------------------------------------------
+ // update output variables
+ //-----------------------------------------------------------------------
+
+ *resu3 = flag3;
+
+ *pit_frac = frac;
+
+ return (lag);
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 Pitch_fr( /* o : pitch period (integer) */
+ Pitch_frState *st, /* i/o : State struct */
+ enum Mode mode, /* i : codec mode */
+ Word16 T_op[], /* i : open loop pitch lags */
+ Word16 exc[], /* i : excitation buffer Q0 */
+ Word16 xn[], /* i : target vector Q0 */
+ Word16 h[], /* i : impulse response of synthesis and
+ weighting filters Q12 */
+ Word16 L_subfr, /* i : Length of subframe */
+ Word16 i_subfr, /* i : subframe offset */
+ Word16 *pit_frac, /* o : pitch period (fractional) */
+ Word16 *resu3, /* o : subsample resolution 1/3 (=1) or 1/6 (=0) */
+ Word16 *ana_index, /* o : index of encoding */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+ Word16 t_min;
+ Word16 t_max;
+ Word16 t0_min = 0;
+ Word16 t0_max;
+ Word16 max;
+ Word16 lag;
+ Word16 frac;
+ Word16 tmp_lag;
+ Word16 *corr;
+ Word16 corr_v[40]; /* Total length = t0_max-t0_min+1+2*L_INTER_SRCH */
+
+ Word16 max_frac_lag;
+ Word16 flag3;
+ Word16 flag4;
+ Word16 last_frac;
+ Word16 delta_int_low;
+ Word16 delta_int_range;
+ Word16 delta_frc_low;
+ Word16 delta_frc_range;
+ Word16 pit_min;
+ Word16 frame_offset;
+ Word16 delta_search;
+
+ /*-----------------------------------------------------------------------*
+ * set mode specific variables *
+ *-----------------------------------------------------------------------*/
+
+ max_frac_lag = mode_dep_parm[mode].max_frac_lag;
+ flag3 = mode_dep_parm[mode].flag3;
+ frac = mode_dep_parm[mode].first_frac;
+ last_frac = mode_dep_parm[mode].last_frac;
+ delta_int_low = mode_dep_parm[mode].delta_int_low;
+ delta_int_range = mode_dep_parm[mode].delta_int_range;
+
+ delta_frc_low = mode_dep_parm[mode].delta_frc_low;
+ delta_frc_range = mode_dep_parm[mode].delta_frc_range;
+ pit_min = mode_dep_parm[mode].pit_min;
+
+ /*-----------------------------------------------------------------------*
+ * decide upon full or differential search *
+ *-----------------------------------------------------------------------*/
+
+ delta_search = 1;
+
+ if ((i_subfr == 0) || (i_subfr == L_FRAME_BY2))
+ {
+
+ /* Subframe 1 and 3 */
+
+ if (((mode != MR475) && (mode != MR515)) || (i_subfr != L_FRAME_BY2))
+ {
+
+ /* set t0_min, t0_max for full search */
+ /* this is *not* done for mode MR475, MR515 in subframe 3 */
+
+ delta_search = 0; /* no differential search */
+
+ /* calculate index into T_op which contains the open-loop */
+ /* pitch estimations for the 2 big subframes */
+
+ frame_offset = 1;
+ if (i_subfr == 0)
+ frame_offset = 0;
+
+ /* get T_op from the corresponding half frame and */
+ /* set t0_min, t0_max */
+
+ getRange(T_op[frame_offset], delta_int_low, delta_int_range,
+ pit_min, PIT_MAX, &t0_min, &t0_max, pOverflow);
+ }
+ else
+ {
+
+ /* mode MR475, MR515 and 3. Subframe: delta search as well */
+ getRange(st->T0_prev_subframe, delta_frc_low, delta_frc_range,
+ pit_min, PIT_MAX, &t0_min, &t0_max, pOverflow);
+ }
+ }
+ else
+ {
+
+ /* for Subframe 2 and 4 */
+ /* get range around T0 of previous subframe for delta search */
+
+ getRange(st->T0_prev_subframe, delta_frc_low, delta_frc_range,
+ pit_min, PIT_MAX, &t0_min, &t0_max, pOverflow);
+ }
+
+ /*-----------------------------------------------------------------------*
+ * Find interval to compute normalized correlation *
+ *-----------------------------------------------------------------------*/
+
+ t_min = t0_min - L_INTER_SRCH;
+ t_max = t0_max + L_INTER_SRCH;
+
+ corr = &corr_v[-t_min];
+
+ /*-----------------------------------------------------------------------*
+ * Compute normalized correlation between target and filtered excitation *
+ *-----------------------------------------------------------------------*/
+
+ Norm_Corr(exc, xn, h, L_subfr, t_min, t_max, corr, pOverflow);
+
+ /*-----------------------------------------------------------------------*
+ * Find integer pitch *
+ *-----------------------------------------------------------------------*/
+
+ max = corr[t0_min];
+ lag = t0_min;
+
+ for (i = t0_min + 1; i <= t0_max; i++)
+ {
+ if (corr[i] >= max)
+ {
+ max = corr[i];
+ lag = i;
+ }
+ }
+
+ /*-----------------------------------------------------------------------*
+ * Find fractional pitch *
+ *-----------------------------------------------------------------------*/
+ if ((delta_search == 0) && (lag > max_frac_lag))
+ {
+
+ /* full search and integer pitch greater than max_frac_lag */
+ /* fractional search is not needed, set fractional to zero */
+
+ frac = 0;
+ }
+ else
+ {
+
+ /* if differential search AND mode MR475 OR MR515 OR MR59 OR MR67 */
+ /* then search fractional with 4 bits resolution */
+
+ if ((delta_search != 0) &&
+ ((mode == MR475) || (mode == MR515) ||
+ (mode == MR59) || (mode == MR67)))
+ {
+
+ /* modify frac or last_frac according to position of last */
+ /* integer pitch: either search around integer pitch, */
+ /* or only on left or right side */
+
+ tmp_lag = st->T0_prev_subframe;
+ if ((tmp_lag - t0_min) > 5)
+ {
+ tmp_lag = t0_min + 5;
+ }
+ if ((t0_max - tmp_lag) > 4)
+ {
+ tmp_lag = t0_max - 4;
+ }
+
+ if ((lag == tmp_lag) || (lag == (tmp_lag - 1)))
+ {
+
+ /* normal search in fractions around T0 */
+
+ searchFrac(&lag, &frac, last_frac, corr, flag3, pOverflow);
+
+ }
+ else if (lag == (tmp_lag - 2))
+ {
+ /* limit search around T0 to the right side */
+ frac = 0;
+ searchFrac(&lag, &frac, last_frac, corr, flag3, pOverflow);
+ }
+ else if (lag == (tmp_lag + 1))
+ {
+ /* limit search around T0 to the left side */
+ last_frac = 0;
+ searchFrac(&lag, &frac, last_frac, corr, flag3, pOverflow);
+ }
+ else
+ {
+ /* no fractional search */
+ frac = 0;
+ }
+ }
+ else
+ /* test the fractions around T0 */
+ searchFrac(&lag, &frac, last_frac, corr, flag3, pOverflow);
+ }
+
+ /*-----------------------------------------------------------------------*
+ * encode pitch *
+ *-----------------------------------------------------------------------*/
+
+ if (flag3 != 0)
+ {
+ /* flag4 indicates encoding with 4 bit resolution; */
+ /* this is needed for mode MR475, MR515 and MR59 */
+
+ flag4 = 0;
+ if ((mode == MR475) || (mode == MR515) ||
+ (mode == MR59) || (mode == MR67))
+ {
+ flag4 = 1;
+ }
+
+ /* encode with 1/3 subsample resolution */
+
+ *ana_index = Enc_lag3(lag, frac, st->T0_prev_subframe,
+ t0_min, t0_max, delta_search, flag4, pOverflow);
+ /* function result */
+
+ }
+ else
+ {
+ /* encode with 1/6 subsample resolution */
+
+ *ana_index = Enc_lag6(lag, frac, t0_min, delta_search, pOverflow);
+ /* function result */
+ }
+
+ /*-----------------------------------------------------------------------*
+ * update state variables *
+ *-----------------------------------------------------------------------*/
+
+ st->T0_prev_subframe = lag;
+
+ /*-----------------------------------------------------------------------*
+ * update output variables *
+ *-----------------------------------------------------------------------*/
+
+ *resu3 = flag3;
+
+ *pit_frac = frac;
+
+ return (lag);
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pitch_fr.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : pitch_fr.h
+ Purpose : Find the pitch period with 1/3 or 1/6 subsample
+ : resolution (closed loop).
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _PITCH_FR_H_
+#define _PITCH_FR_H_
+#define pitch_fr_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 T0_prev_subframe; /* integer pitch lag of previous sub-frame */
+ } Pitch_frState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ Word16 Pitch_fr_init(Pitch_frState **st);
+ /* initialize one instance of the pre processing state.
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to Pitch_fr in each call.
+ returns 0 on success
+ */
+
+ Word16 Pitch_fr_reset(Pitch_frState *st);
+ /* reset of pre processing state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+
+ void Pitch_fr_exit(Pitch_frState **st);
+ /* de-initialize pre processing state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ Word16 Pitch_fr( /* o : pitch period (integer) */
+ Pitch_frState *st, /* i/o : State struct */
+ enum Mode mode, /* i : codec mode */
+ Word16 T_op[], /* i : open loop pitch lags */
+ Word16 exc[], /* i : excitation buffer */
+ Word16 xn[], /* i : target vector */
+ Word16 h[], /* i : impulse response of synthesis and
+ weighting filters */
+ Word16 L_subfr, /* i : Length of subframe */
+ Word16 i_subfr, /* i : subframe offset */
+ Word16 *pit_frac, /* o : pitch period (fractional) */
+ Word16 *resu3, /* o : subsample resolution 1/3 (=1) or 1/6 (=0) */
+ Word16 *ana_index, /* o : index of encoding */
+ Flag *pOverflow
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PITCH_FR_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pitch_ol.cpp
+ Funtions: Pitch_ol
+ Lag_max
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ The modules in this file compute the open loop pitch lag.
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pitch_ol.h"
+#include "typedef.h"
+#include "basicop_malloc.h"
+#include "cnst.h"
+#include "inv_sqrt.h"
+#include "vad.h"
+#include "calc_cor.h"
+#include "hp_max.h"
+#include "oscl_mem.h"
+#include "basic_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define THRESHOLD 27853
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Lag_max
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS (If VAD2 is defined)
+
+ Inputs
+ corr = pointer to buffer of correlation values (Word32)
+ scal_sig = pointer to buffer of scaled signal values (Word16)
+ scal_fac = scaled signal factor (Word16)
+ scal_flag = EFR compatible scaling flag (Word16)
+ L_frame = length of frame to compute pitch (Word16)
+ lag_max = maximum lag (Word16)
+ lag_min = minimum lag (Word16)
+ cor_max = pointer to the normalized correlation of selected lag (Word16)
+ rmax = pointer to max(<s[i]*s[j]>), (Word32)
+ r0 = pointer to the residual energy (Word32)
+ dtx = dtx flag; equal to 1, if dtx is enabled, 0, otherwise (Flag)
+
+ Outputs:
+ cor_max contains the newly calculated normalized correlation of the
+ selected lag
+ rmax contains the newly calculated max(<s[i]*s[j]>)
+ r0 contains the newly calculated residual energy
+
+ Returns:
+ p_max = lag of the max correlation found (Word16)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS (If VAD2 is not defined)
+
+ Inputs
+ vadSt = pointer to a vadState structure
+ corr = pointer to buffer of correlation values (Word32)
+ scal_sig = pointer to buffer of scaled signal values (Word16)
+ scal_fac = scaled signal factor (Word16)
+ scal_flag = EFR compatible scaling flag (Word16)
+ L_frame = length of frame to compute pitch (Word16)
+ lag_max = maximum lag (Word16)
+ lag_min = minimum lag (Word16)
+ cor_max = pointer to the normalized correlation of selected lag (Word16)
+ dtx = dtx flag; equal to 1, if dtx is enabled, 0, otherwise (Flag)
+ pOverflow = pointer to overflow indicator (Flag)
+
+ Outputs:
+ cor_max contains the newly calculated normalized correlation of the
+ selected lag
+ vadSt contains the updated VAD state parameters
+ pOverflow -> 1 if the math operations called by this routine saturate
+
+ Returns:
+ p_max = lag of the max correlation found (Word16)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Find the lag that has maximum correlation of scal_sig in a given delay range.
+ The correlation is given by:
+
+ cor[t] = <scal_sig[n],scal_sig[n-t]>, t=lag_min,...,lag_max
+
+ The function returns the maximum correlation after normalization and the
+ corresponding lag.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_ol.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+#ifdef VAD2
+static Word16 Lag_max ( // o : lag found
+ Word32 corr[], // i : correlation vector.
+ Word16 scal_sig[], // i : scaled signal.
+ Word16 scal_fac, // i : scaled signal factor.
+ Word16 scal_flag, // i : if 1 use EFR compatible scaling
+ Word16 L_frame, // i : length of frame to compute pitch
+ Word16 lag_max, // i : maximum lag
+ Word16 lag_min, // i : minimum lag
+ Word16 *cor_max, // o : normalized correlation of selected lag
+ Word32 *rmax, // o : max(<s[i]*s[j]>)
+ Word32 *r0, // o : residual energy
+ Flag dtx // i : dtx flag; use dtx=1, do not use dtx=0
+ )
+#else
+static Word16 Lag_max ( // o : lag found
+ vadState *vadSt, // i/o : VAD state struct
+ Word32 corr[], // i : correlation vector.
+ Word16 scal_sig[], // i : scaled signal.
+ Word16 scal_fac, // i : scaled signal factor.
+ Word16 scal_flag, // i : if 1 use EFR compatible scaling
+ Word16 L_frame, // i : length of frame to compute pitch
+ Word16 lag_max, // i : maximum lag
+ Word16 lag_min, // i : minimum lag
+ Word16 *cor_max, // o : normalized correlation of selected lag
+ Flag dtx // i : dtx flag; use dtx=1, do not use dtx=0
+ )
+#endif
+{
+ Word16 i, j;
+ Word16 *p;
+ Word32 max, t0;
+ Word16 max_h, max_l, ener_h, ener_l;
+ Word16 p_max = 0; // initialization only needed to keep gcc silent
+
+ max = MIN_32;
+ p_max = lag_max;
+
+ for (i = lag_max, j = (PIT_MAX-lag_max-1); i >= lag_min; i--, j--)
+ {
+ if (L_sub (corr[-i], max) >= 0)
+ {
+ max = corr[-i];
+ p_max = i;
+ }
+ }
+
+ // compute energy
+
+ t0 = 0;
+ p = &scal_sig[-p_max];
+ for (i = 0; i < L_frame; i++, p++)
+ {
+ t0 = L_mac (t0, *p, *p);
+ }
+ // 1/sqrt(energy)
+
+ if (dtx)
+ { // no test() call since this if is only in simulation env
+#ifdef VAD2
+ *rmax = max;
+ *r0 = t0;
+#else
+ // check tone
+ vad_tone_detection (vadSt, max, t0);
+#endif
+ }
+
+ t0 = Inv_sqrt (t0);
+
+ if (scal_flag)
+ {
+ t0 = L_shl (t0, 1);
+ }
+
+ // max = max/sqrt(energy)
+
+ L_Extract (max, &max_h, &max_l);
+ L_Extract (t0, &ener_h, &ener_l);
+
+ t0 = Mpy_32 (max_h, max_l, ener_h, ener_l);
+
+ if (scal_flag)
+ {
+ t0 = L_shr (t0, scal_fac);
+ *cor_max = extract_h (L_shl (t0, 15)); // divide by 2
+ }
+ else
+ {
+ *cor_max = extract_l(t0);
+ }
+
+ return (p_max);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+#ifdef VAD2
+static Word16 Lag_max( /* o : lag found */
+ Word32 corr[], /* i : correlation vector. */
+ Word16 scal_sig[], /* i : scaled signal. */
+ Word16 scal_fac, /* i : scaled signal factor. */
+ Word16 scal_flag, /* i : if 1 use EFR compatible scaling */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 lag_max, /* i : maximum lag */
+ Word16 lag_min, /* i : minimum lag */
+ Word16 *cor_max, /* o : normalized correlation of selected lag */
+ Word32 *rmax, /* o : max(<s[i]*s[j]>) */
+ Word32 *r0, /* o : residual energy */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* i/o : overflow Flag */
+)
+#else
+static Word16 Lag_max( /* o : lag found */
+ vadState *vadSt, /* i/o : VAD state struct */
+ Word32 corr[], /* i : correlation vector. */
+ Word16 scal_sig[], /* i : scaled signal. */
+ Word16 scal_fac, /* i : scaled signal factor. */
+ Word16 scal_flag, /* i : if 1 use EFR compatible scaling */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 lag_max, /* i : maximum lag */
+ Word16 lag_min, /* i : minimum lag */
+ Word16 *cor_max, /* o : normalized correlation of selected lag */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* i/o : overflow Flag */
+)
+#endif
+{
+ register Word16 i;
+ Word16 *p;
+ Word32 max;
+ Word32 t0;
+ Word16 max_h;
+ Word16 max_l;
+ Word16 ener_h;
+ Word16 ener_l;
+ Word16 p_max = 0; /* initialization only needed to keep gcc silent */
+ Word32 L_temp;
+ Word32 L_temp_2;
+ Word32 L_temp_3;
+ Word32 *p_corr = &corr[-lag_max];
+
+ max = MIN_32;
+ p_max = lag_max;
+
+ for (i = lag_max; i >= lag_min; i--)
+ {
+ /* The negative array index is equivalent to a negative */
+ /* address offset, i.e., corr[-i] == *(corr - i) */
+ if (*(p_corr++) >= max)
+ {
+ p_corr--;
+ max = *(p_corr++);
+ p_max = i;
+ }
+ }
+
+ /* compute energy */
+
+ t0 = 0;
+
+ /* The negative array index is equivalent to a negative */
+ /* address offset, i.e., scal_sig[-p_max] == *(scal_sig - p_max) */
+ p = &scal_sig[-p_max];
+ for (i = (L_frame >> 2); i != 0; i--)
+ {
+ t0 = amrnb_fxp_mac_16_by_16bb((Word32) * (p), (Word32) * (p), t0);
+ p++;
+ t0 = amrnb_fxp_mac_16_by_16bb((Word32) * (p), (Word32) * (p), t0);
+ p++;
+ t0 = amrnb_fxp_mac_16_by_16bb((Word32) * (p), (Word32) * (p), t0);
+ p++;
+ t0 = amrnb_fxp_mac_16_by_16bb((Word32) * (p), (Word32) * (p), t0);
+ p++;
+ }
+
+ t0 <<= 1;
+ /* 1/sqrt(energy) */
+
+ if (dtx)
+ { /* no test() call since this if is only in simulation env */
+ /* check tone */
+#ifdef VAD2
+ *rmax = max;
+ *r0 = t0;
+#else
+ /* check tone */
+ vad_tone_detection(vadSt, max, t0, pOverflow);
+#endif
+ }
+
+ t0 = Inv_sqrt(t0, pOverflow);
+
+ if (scal_flag)
+ {
+ if (t0 > (Word32) 0x3fffffffL)
+ {
+ t0 = MAX_32;
+ }
+ else
+ {
+ t0 = t0 << 1;
+ }
+ }
+
+ /* max = max/sqrt(energy) */
+ /* The following code is an inlined version of */
+ /* L_Extract (max, &max_h, &max_l), i.e. */
+ /* */
+ /* *max_h = extract_h (max); */
+ max_h = (Word16)(max >> 16);
+
+ /* L_temp_2 = L_shr(max,1), which is used in */
+ /* the calculation of *max_l (see next operation) */
+ L_temp_2 = max >> 1;
+
+ /* *max_l = extract_l (L_msu (L_shr (max, 1), *max_h, 16384)); */
+ L_temp_3 = (Word32)(max_h << 15);
+
+ L_temp = L_temp_2 - L_temp_3;
+
+ max_l = (Word16)L_temp;
+
+ /* The following code is an inlined version of */
+ /* L_Extract (t0, &ener_h, &ener_l), i.e. */
+ /* */
+ /* *ener_h = extract_h (t0); */
+ ener_h = (Word16)(t0 >> 16);
+
+ /* L_temp_2 = L_shr(t0,1), which is used in */
+ /* the calculation of *ener_l (see next operation) */
+
+ L_temp_2 = t0 >> 1;
+
+ L_temp_3 = (Word32)(ener_h << 15);
+
+ L_temp = L_temp_2 - L_temp_3;
+
+ ener_l = (Word16)L_temp;
+
+ t0 = Mpy_32(max_h, max_l, ener_h, ener_l, pOverflow);
+
+ if (scal_flag)
+ {
+ t0 = L_shr(t0, scal_fac, pOverflow);
+
+ if (t0 > (Word32) 0X0000FFFFL)
+ {
+ *cor_max = MAX_16;
+ }
+ else if (t0 < (Word32) 0xFFFF0000L)
+ {
+ *cor_max = MIN_16;
+ }
+ else
+ {
+ *cor_max = (Word16)(t0 >> 1);
+ }
+ }
+ else
+ {
+ *cor_max = (Word16)t0;
+ }
+
+ return (p_max);
+}
+
+/*----------------------------------------------------------------------------
+; End Function: Lag_max
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Lag_max_wrapper
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs
+ corr = pointer to buffer of correlation values (Word32)
+ scal_sig = pointer to buffer of scaled signal values (Word16)
+ scal_fac = scaled signal factor (Word16)
+ scal_flag = EFR compatible scaling flag (Word16)
+ L_frame = length of frame to compute pitch (Word16)
+ lag_max = maximum lag (Word16)
+ lag_min = minimum lag (Word16)
+ cor_max = pointer to the normalized correlation of selected lag (Word16)
+ rmax = pointer to max(<s[i]*s[j]>), (Word32)
+ r0 = pointer to the residual energy (Word32)
+ dtx = dtx flag; equal to 1, if dtx is enabled, 0, otherwise (Flag)
+ pOverflow = pointer to overflow indicator (Flag)
+
+ Outputs:
+ cor_max contains the newly calculated normalized correlation of the
+ selected lag
+ rmax contains the newly calculated max(<s[i]*s[j]>)
+ r0 contains the newly calculated residual energy
+ pOverflow -> 1 if the math operations called by this routine saturate
+
+ Returns:
+ p_max = lag of the max correlation found (Word16)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS (If VAD2 is not defined)
+
+ Inputs
+ vadSt = pointer to a vadState structure
+ corr = pointer to buffer of correlation values (Word32)
+ scal_sig = pointer to buffer of scaled signal values (Word16)
+ scal_fac = scaled signal factor (Word16)
+ scal_flag = EFR compatible scaling flag (Word16)
+ L_frame = length of frame to compute pitch (Word16)
+ lag_max = maximum lag (Word16)
+ lag_min = minimum lag (Word16)
+ cor_max = pointer to the normalized correlation of selected lag (Word16)
+ dtx = dtx flag; equal to 1, if dtx is enabled, 0, otherwise (Flag)
+ pOverflow = pointer to overflow indicator (Flag)
+
+ Outputs:
+ cor_max contains the newly calculated normalized correlation of the
+ selected lag
+ vadSt contains the updated VAD state parameters
+ pOverflow -> 1 if the math operations called by this routine saturate
+
+ Returns:
+ p_max = lag of the max correlation found (Word16)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function provides external access to the local function Lag_max.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_ol.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+#ifdef VAD2
+ CALL Lag_max(corr = corr
+ scal_sig = scal_sig
+ scal_fac = scal_fac
+ scal_flag = scal_flag
+ L_frame = L_frame
+ lag_max = lag_max
+ lag_min = lag_min
+ cor_max = cor_max
+ rmax = rmax
+ r0 = r0
+ dtx = dtx
+ pOverflow = pOverflow)
+ MODIFYING(nothing)
+ RETURNING(temp)
+
+#else
+ CALL Lag_max(vadSt = vadSt
+ corr = corr
+ scal_sig = scal_sig
+ scal_fac = scal_fac
+ scal_flag = scal_flag
+ L_frame = L_frame
+ lag_max = lag_max
+ lag_min = lag_min
+ cor_max = cor_max
+ dtx = dtx
+ pOverflow = pOverflow)
+ MODIFYING(nothing)
+ RETURNING(temp)
+
+#endif
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+#ifdef VAD2
+Word16 Lag_max_wrapper( /* o : lag found */
+ Word32 corr[], /* i : correlation vector. */
+ Word16 scal_sig[], /* i : scaled signal. */
+ Word16 scal_fac, /* i : scaled signal factor. */
+ Word16 scal_flag, /* i : if 1 use EFR compatible scaling */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 lag_max, /* i : maximum lag */
+ Word16 lag_min, /* i : minimum lag */
+ Word16 *cor_max, /* o : normalized correlation of selected lag */
+ Word32 *rmax, /* o : max(<s[i]*s[j]>) */
+ Word32 *r0, /* o : residual energy */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* i/o : overflow Flag */
+)
+{
+ Word16 temp;
+
+ temp = Lag_max(corr, scal_sig, scal_fac, scal_flag, L_frame, lag_max,
+ lag_min, cor_max, rmax, r0, dtx, pOverflow);
+
+ return(temp);
+}
+
+#else
+Word16 Lag_max_wrapper( /* o : lag found */
+ vadState *vadSt, /* i/o : VAD state struct */
+ Word32 corr[], /* i : correlation vector. */
+ Word16 scal_sig[], /* i : scaled signal. */
+ Word16 scal_fac, /* i : scaled signal factor. */
+ Word16 scal_flag, /* i : if 1 use EFR compatible scaling */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 lag_max, /* i : maximum lag */
+ Word16 lag_min, /* i : minimum lag */
+ Word16 *cor_max, /* o : normalized correlation of selected lag */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* i/o : overflow Flag */
+)
+{
+ Word16 temp;
+
+ temp = Lag_max(vadSt, corr, scal_sig, scal_fac, scal_flag, L_frame,
+ lag_max, lag_min, cor_max, dtx, pOverflow);
+
+ return(temp);
+}
+
+#endif
+
+/*----------------------------------------------------------------------------
+; End Function: Lag_max_wrapper
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pitch_ol
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ vadSt = pointer to a vadState structure
+ mode = data of type enum Mode specifies the mode.
+ signal = pointer to buffer of signal used to compute the open loop
+ pitch
+ where signal[-pit_max] to signal[-1] should be known
+ pit_min = 16 bit value specifies the minimum pitch lag
+ pit_max = 16 bit value specifies the maximum pitch lag
+ L_frame = 16 bit value specifies the length of frame to compute pitch
+ idx = 16 bit value specifies the frame index
+ dtx = Data of type 'Flag' used for dtx. Use dtx=1, do not use dtx=0
+ pOverflow = pointer to overflow indicator (Flag)
+
+ Outputs
+ vadSt = The vadSt state structure may be modified.
+ pOverflow -> 1 if the math operations called by this routine saturate
+
+ Returns:
+ p_max1 = 16 bit value representing the open loop pitch lag.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function computes the open loop pitch lag based on the perceptually
+ weighted speech signal. This is done in the following steps:
+ - find three maxima of the correlation <sw[n],sw[n-T]>,
+ dividing the search range into three parts:
+ pit_min ... 2*pit_min-1
+ 2*pit_min ... 4*pit_min-1
+ 4*pit_min ... pit_max
+ - divide each maximum by <sw[n-t], sw[n-t]> where t is the delay at
+ that maximum correlation.
+ - select the delay of maximum normalized correlation (among the
+ three candidates) while favoring the lower delay ranges.
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pitch_ol.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 Pitch_ol ( // o : open loop pitch lag
+ vadState *vadSt, // i/o : VAD state struct
+ enum Mode mode, // i : coder mode
+ Word16 signal[], // i : signal used to compute the open loop pitch
+ // signal[-pit_max] to signal[-1] should be known
+ Word16 pit_min, // i : minimum pitch lag
+ Word16 pit_max, // i : maximum pitch lag
+ Word16 L_frame, // i : length of frame to compute pitch
+ Word16 idx, // i : frame index
+ Flag dtx // i : dtx flag; use dtx=1, do not use dtx=0
+ )
+{
+ Word16 i, j;
+ Word16 max1, max2, max3;
+ Word16 p_max1, p_max2, p_max3;
+ Word16 scal_flag = 0;
+ Word32 t0;
+#ifdef VAD2
+ Word32 r01, r02, r03;
+ Word32 rmax1, rmax2, rmax3;
+#else
+ Word16 corr_hp_max;
+#endif
+ Word32 corr[PIT_MAX+1], *corr_ptr;
+
+ // Scaled signal
+
+ Word16 scaled_signal[L_FRAME + PIT_MAX];
+ Word16 *scal_sig, scal_fac;
+
+#ifndef VAD2
+ if (dtx)
+ { // no test() call since this if is only in simulation env
+ // update tone detection
+ if ((sub(mode, MR475) == 0) || (sub(mode, MR515) == 0))
+ {
+ vad_tone_detection_update (vadSt, 1);
+ }
+ else
+ {
+ vad_tone_detection_update (vadSt, 0);
+ }
+ }
+#endif
+
+ scal_sig = &scaled_signal[pit_max];
+
+ t0 = 0L;
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ t0 = L_mac (t0, signal[i], signal[i]);
+ }
+
+ *--------------------------------------------------------*
+ * Scaling of input signal. *
+ * *
+ * if Overflow -> scal_sig[i] = signal[i]>>3 *
+ * else if t0 < 1^20 -> scal_sig[i] = signal[i]<<3 *
+ * else -> scal_sig[i] = signal[i] *
+ *--------------------------------------------------------*
+
+ *--------------------------------------------------------*
+ * Verification for risk of overflow. *
+ *--------------------------------------------------------*
+
+ if (L_sub (t0, MAX_32) == 0L) // Test for overflow
+ {
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ scal_sig[i] = shr (signal[i], 3);
+ }
+ scal_fac = 3;
+ }
+ else if (L_sub (t0, (Word32) 1048576L) < (Word32) 0)
+ // if (t0 < 2^20)
+ {
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ scal_sig[i] = shl (signal[i], 3);
+ }
+ scal_fac = -3;
+ }
+ else
+ {
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ scal_sig[i] = signal[i];
+ }
+ scal_fac = 0;
+ }
+
+ // calculate all coreelations of scal_sig, from pit_min to pit_max
+ corr_ptr = &corr[pit_max];
+ comp_corr (scal_sig, L_frame, pit_max, pit_min, corr_ptr);
+
+ *--------------------------------------------------------------------*
+ * The pitch lag search is divided in three sections. *
+ * Each section cannot have a pitch multiple. *
+ * We find a maximum for each section. *
+ * We compare the maximum of each section by favoring small lags. *
+ * *
+ * First section: lag delay = pit_max downto 4*pit_min *
+ * Second section: lag delay = 4*pit_min-1 downto 2*pit_min *
+ * Third section: lag delay = 2*pit_min-1 downto pit_min *
+ *--------------------------------------------------------------------*
+
+ // mode dependent scaling in Lag_max
+ if (sub(mode, MR122) == 0)
+ {
+ scal_flag = 1;
+ }
+ else
+ {
+ scal_flag = 0;
+ }
+
+#ifdef VAD2
+ j = shl (pit_min, 2);
+ p_max1 = Lag_max (corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ pit_max, j, &max1, &rmax1, &r01, dtx);
+
+ i = sub (j, 1);
+ j = shl (pit_min, 1);
+ p_max2 = Lag_max (corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ i, j, &max2, &rmax2, &r02, dtx);
+
+ i = sub (j, 1);
+ p_max3 = Lag_max (corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ i, pit_min, &max3, &rmax3, &r03, dtx);
+#else
+ j = shl (pit_min, 2);
+ p_max1 = Lag_max (vadSt, corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ pit_max, j, &max1, dtx);
+
+ i = sub (j, 1);
+ j = shl (pit_min, 1);
+ p_max2 = Lag_max (vadSt, corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ i, j, &max2, dtx);
+
+ i = sub (j, 1);
+ p_max3 = Lag_max (vadSt, corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ i, pit_min, &max3, dtx);
+
+ if (dtx)
+ { // no test() call since this if is only in simulation env
+ if (sub(idx, 1) == 0)
+ {
+ // calculate max high-passed filtered correlation of all lags
+ hp_max (corr_ptr, scal_sig, L_frame, pit_max, pit_min, &corr_hp_max);
+
+ // update complex background detector
+ vad_complex_detection_update(vadSt, corr_hp_max);
+ }
+ }
+#endif
+
+ *--------------------------------------------------------------------*
+ * Compare the 3 sections maximum, and favor small lag. *
+ *--------------------------------------------------------------------*
+
+ if (sub (mult (max1, THRESHOLD), max2) < 0)
+ {
+ max1 = max2;
+ p_max1 = p_max2;
+#ifdef VAD2
+ if (dtx)
+ {
+ rmax1 = rmax2;
+ r01 = r02;
+#endif
+ }
+ if (sub (mult (max1, THRESHOLD), max3) < 0)
+ {
+ p_max1 = p_max3;
+#ifdef VAD2
+ if (dtx)
+ {
+ rmax1 = rmax3;
+ r01 = r03;
+ }
+#endif
+ }
+
+#ifdef VAD2
+ if (dtx)
+ {
+ vadSt->L_Rmax = L_add(vadSt->L_Rmax, rmax1); // Save max correlation
+ vadSt->L_R0 = L_add(vadSt->L_R0, r01); // Save max energy
+ }
+#endif
+
+ return (p_max1);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Pitch_ol( /* o : open loop pitch lag */
+ vadState *vadSt, /* i/o : VAD state struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 signal[], /* i : signal used to compute the open loop pitch */
+ /* signal[-pit_max] to signal[-1] should be known */
+ Word16 pit_min, /* i : minimum pitch lag */
+ Word16 pit_max, /* i : maximum pitch lag */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 idx, /* i : frame index */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* i/o : overflow Flag */
+)
+{
+ Word16 i;
+ Word16 j;
+ Word16 max1;
+ Word16 max2;
+ Word16 max3;
+ Word16 p_max1;
+ Word16 p_max2;
+ Word16 p_max3;
+ Word16 scal_flag = 0;
+ Word32 t0;
+
+#ifdef VAD2
+ Word32 r01;
+ Word32 r02;
+ Word32 r03;
+ Word32 rmax1;
+ Word32 rmax2;
+ Word32 rmax3;
+#else
+ Word16 corr_hp_max;
+#endif
+ Word32 corr[PIT_MAX+1];
+ Word32 *corr_ptr;
+
+ /* Scaled signal */
+
+ Word16 scaled_signal[L_FRAME + PIT_MAX];
+ Word16 *scal_sig;
+ Word16 *p_signal;
+ Word16 scal_fac;
+ Word32 L_temp;
+
+#ifndef VAD2
+ if (dtx)
+ { /* no test() call since this if is only in simulation env */
+ /* update tone detection */
+ if ((mode == MR475) || (mode == MR515))
+ {
+ vad_tone_detection_update(vadSt, 1, pOverflow);
+ }
+ else
+ {
+ vad_tone_detection_update(vadSt, 0, pOverflow);
+ }
+ }
+#endif
+
+
+ t0 = 0L;
+ p_signal = &signal[-pit_max];
+
+ for (i = -pit_max; i < L_frame; i++)
+ {
+ t0 += (((Word32) * (p_signal)) * *(p_signal)) << 1;
+ p_signal++;
+ if (t0 < 0)
+ {
+ t0 = MAX_32;
+ break;
+ }
+
+ }
+
+ /*--------------------------------------------------------*
+ * Scaling of input signal. *
+ * *
+ * if Overflow -> scal_sig[i] = signal[i]>>3 *
+ * else if t0 < 1^20 -> scal_sig[i] = signal[i]<<3 *
+ * else -> scal_sig[i] = signal[i] *
+ *--------------------------------------------------------*/
+
+ /*--------------------------------------------------------*
+ * Verification for risk of overflow. *
+ *--------------------------------------------------------*/
+
+ scal_sig = &scaled_signal[0];
+ p_signal = &signal[-pit_max];
+
+ if (t0 == MAX_32) /* Test for overflow */
+ {
+
+ for (i = (pit_max + L_frame) >> 1; i != 0; i--)
+ {
+ *(scal_sig++) = (Word16)(((Word32) * (p_signal++) >> 3));
+ *(scal_sig++) = (Word16)(((Word32) * (p_signal++) >> 3));
+ }
+
+ if ((pit_max + L_frame) & 1)
+ {
+ *(scal_sig) = (Word16)(((Word32) * (p_signal) >> 3));
+ }
+
+ scal_fac = 3;
+ }
+ else if (t0 < (Word32)1048576L)
+ /* if (t0 < 2^20) */
+ {
+ for (i = (pit_max + L_frame) >> 1; i != 0; i--)
+ {
+ *(scal_sig++) = (Word16)(((Word32) * (p_signal++) << 3));
+ *(scal_sig++) = (Word16)(((Word32) * (p_signal++) << 3));
+ }
+
+ if ((pit_max + L_frame) & 1)
+ {
+ *(scal_sig) = (Word16)(((Word32) * (p_signal) << 3));
+ }
+ scal_fac = -3;
+ }
+ else
+ {
+
+ oscl_memcpy(scal_sig, p_signal, (L_frame + pit_max)*sizeof(*signal));
+ scal_fac = 0;
+ }
+
+ /* calculate all coreelations of scal_sig, from pit_min to pit_max */
+ corr_ptr = &corr[pit_max];
+
+ scal_sig = &scaled_signal[pit_max];
+
+ comp_corr(scal_sig, L_frame, pit_max, pit_min, corr_ptr);
+
+ /*--------------------------------------------------------------------*
+ * The pitch lag search is divided in three sections. *
+ * Each section cannot have a pitch multiple. *
+ * We find a maximum for each section. *
+ * We compare the maximum of each section by favoring small lags. *
+ * *
+ * First section: lag delay = pit_max downto 4*pit_min *
+ * Second section: lag delay = 4*pit_min-1 downto 2*pit_min *
+ * Third section: lag delay = 2*pit_min-1 downto pit_min *
+ *--------------------------------------------------------------------*/
+
+ /* mode dependent scaling in Lag_max */
+
+ if (mode == MR122)
+ {
+ scal_flag = 1;
+ }
+ else
+ {
+ scal_flag = 0;
+ }
+
+#ifdef VAD2
+ L_temp = ((Word32)pit_min) << 2;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ *pOverflow = 1;
+ j = (pit_min > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ j = (Word16)L_temp;
+ }
+
+ p_max1 = Lag_max(corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ pit_max, j, &max1, &rmax1, &r01, dtx, pOverflow);
+
+ i = j - 1;
+
+ j = pit_min << 1;
+
+ p_max2 = Lag_max(corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ i, j, &max2, &rmax2, &r02, dtx, pOverflow);
+
+ i = j - 1;
+
+ p_max3 = Lag_max(corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ i, pit_min, &max3, &rmax3, &r03, dtx, pOverflow);
+
+#else
+ L_temp = ((Word32)pit_min) << 2;
+ if (L_temp != (Word32)((Word16) L_temp))
+ {
+ *pOverflow = 1;
+ j = (pit_min > 0) ? MAX_16 : MIN_16;
+ }
+ else
+ {
+ j = (Word16)L_temp;
+ }
+
+ p_max1 = Lag_max(vadSt, corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ pit_max, j, &max1, dtx, pOverflow);
+
+ i = j - 1;
+
+
+ j = pit_min << 1;
+
+
+ p_max2 = Lag_max(vadSt, corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ i, j, &max2, dtx, pOverflow);
+
+ i = j - 1;
+ p_max3 = Lag_max(vadSt, corr_ptr, scal_sig, scal_fac, scal_flag, L_frame,
+ i, pit_min, &max3, dtx, pOverflow);
+
+ if (dtx)
+ { /* no test() call since this if is only in simulation env */
+
+ if (idx == 1)
+ {
+ /* calculate max high-passed filtered correlation of all lags */
+ hp_max(corr_ptr, scal_sig, L_frame, pit_max, pit_min, &corr_hp_max,
+ pOverflow);
+
+ /* update complex background detector */
+ vad_complex_detection_update(vadSt, corr_hp_max);
+ }
+ }
+#endif
+
+ /*--------------------------------------------------------------------*
+ * Compare the 3 sections maximum, and favor small lag. *
+ *--------------------------------------------------------------------*/
+
+ i = (Word16)(((Word32)max1 * THRESHOLD) >> 15);
+
+ if (i < max2)
+ {
+ max1 = max2;
+ p_max1 = p_max2;
+
+#ifdef VAD2
+ if (dtx)
+ {
+ rmax1 = rmax2;
+ r01 = r02;
+ }
+#endif
+ }
+
+ i = (Word16)(((Word32)max1 * THRESHOLD) >> 15);
+
+
+ if (i < max3)
+ {
+ p_max1 = p_max3;
+
+#ifdef VAD2
+ if (dtx)
+ {
+ rmax1 = rmax3;
+ r01 = r03;
+ }
+#endif
+ }
+
+#ifdef VAD2
+ if (dtx)
+ {
+ /* Save max correlation */
+ vadSt->L_Rmax = L_add(vadSt->L_Rmax, rmax1, pOverflow);
+ /* Save max energy */
+ vadSt->L_R0 = L_add(vadSt->L_R0, r01, pOverflow);
+ }
+#endif
+
+ return (p_max1);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pitch_ol.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : pitch_ol.h
+ Purpose : Compute the open loop pitch lag.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef PITCH_OL_H
+#define PITCH_OL_H "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "vad.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ Word16 Pitch_ol( /* o : open loop pitch lag */
+ vadState *vadSt, /* i/o : VAD state struct */
+ enum Mode mode, /* i : coder mode */
+ Word16 signal[], /* i : signal used to compute the open loop pitch */
+ /* signal[-pit_max] to signal[-1] should be known */
+ Word16 pit_min, /* i : minimum pitch lag */
+ Word16 pit_max, /* i : maximum pitch lag */
+ Word16 L_frame, /* i : length of frame to compute pitch */
+ Word16 idx, /* i : frame index */
+ Flag dtx, /* i : dtx flag; use dtx=1, do not use dtx=0 */
+ Flag *pOverflow /* i/o : overflow Flag */
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PITCH_OL_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pre_big.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Big subframe (2 subframes) preprocessing
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pre_big.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "syn_filt.h"
+#include "weight_a.h"
+#include "residu.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: pre_big
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ mode = enum Mode -- coder mode
+ gamma1 = array of type const Word16 -- spectral exp. factor 1
+ gamma1_12k2 = array of type const Word16 -- spectral exp. factor 1 for EFR
+ gamma2 = array of type const Word16 -- spectral exp. factor 2
+ A_t = array of type Word16 -- A(z) unquantized, for 4 subframes, Q12
+ frameOffset = Word16 -- Start position in speech vector, Q0
+ speech[] = array of type Word16 -- speech, Q0
+
+ Outputs:
+ mem_w = array of type Word16 -- synthesis filter memory state, Q0
+ wsp = array of type Word16 -- weighted speech Q0
+ pOverflow = pointer of type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pre_big.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void pre_big(
+ enum Mode mode, /* i : coder mode */
+ const Word16 gamma1[], /* i : spectral exp. factor 1 */
+ const Word16 gamma1_12k2[],/* i : spectral exp. factor 1 for EFR */
+ const Word16 gamma2[], /* i : spectral exp. factor 2 */
+ Word16 A_t[], /* i : A(z) unquantized, for 4 subframes, Q12 */
+ Word16 frameOffset, /* i : Start position in speech vector, Q0 */
+ Word16 speech[], /* i : speech, Q0 */
+ Word16 mem_w[], /* i/o: synthesis filter memory state, Q0 */
+ Word16 wsp[], /* o : weighted speech Q0 */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ Word16 Ap1[MP1]; /* A(z) with spectral expansion */
+ Word16 Ap2[MP1]; /* A(z) with spectral expansion */
+ const Word16 *g1; /* Pointer to correct gammma1 vector */
+ Word16 aOffset;
+ Word16 i;
+
+ if (mode <= MR795)
+ {
+ g1 = gamma1;
+ }
+ else
+ {
+ g1 = gamma1_12k2;
+ }
+
+ if (frameOffset > 0)
+ {
+ aOffset = MP1 << 1;
+ }
+ else
+ {
+ aOffset = 0;
+ }
+
+ /* process two subframes (which form the "big" subframe) */
+ for (i = 0; i < 2; i++)
+ {
+ Weight_Ai(&A_t[aOffset], g1, Ap1);
+ Weight_Ai(&A_t[aOffset], gamma2, Ap2);
+ Residu(Ap1, &speech[frameOffset], &wsp[frameOffset], L_SUBFR);
+
+ Syn_filt(Ap2, &wsp[frameOffset], &wsp[frameOffset], L_SUBFR, mem_w, 1);
+
+ aOffset += MP1;
+
+ frameOffset += L_SUBFR;
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pre_big.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, pre_big.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef pre_big_h
+#define pre_big_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void pre_big(
+ enum Mode mode, /* i : coder mode */
+ const Word16 gamma1[], /* i : spectral exp. factor 1 */
+ const Word16 gamma1_12k2[],/* i : spectral exp. factor 1 for EFR */
+ const Word16 gamma2[], /* i : spectral exp. factor 2 */
+ Word16 A_t[], /* i : A(z) unquantized, for 4 subframes, Q12 */
+ Word16 frameOffset, /* i : Start position in speech vector, Q0 */
+ Word16 speech[], /* i : speech, Q0 */
+ Word16 mem_w[], /* i/o: synthesis filter memory state, Q0 */
+ Word16 wsp[], /* o : weighted speech Q0 */
+ Flag *pOverflow /* o : overflow indicator */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _H_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pre_proc.cpp
+ Funtions: Pre_Process_init
+ Pre_Process_reset
+ Pre_Process_exit
+ Pre_Process
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ These modules handle the preprocessing of input speech.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pre_proc.h"
+#include "typedef.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pre_Process_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to an array of pointer to structures of type
+ Pre_ProcessState
+
+ Outputs:
+ Structure pointed to by the pointer pointed to by state is
+ initialized to its reset value
+ state points to the allocated memory
+
+ Returns:
+ return_value = 0 if memory was successfully initialized,
+ otherwise returns -1.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Allocates state memory and initializes state memory.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pre_proc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Pre_Process_init (Pre_ProcessState **state)
+{
+ Pre_ProcessState* s;
+
+ if (state == (Pre_ProcessState **) NULL){
+ fprintf(stderr, "Pre_Process_init: invalid parameter\n");
+ return -1;
+ }
+ *state = NULL;
+
+ // allocate memory
+ if ((s= (Pre_ProcessState *) malloc(sizeof(Pre_ProcessState))) == NULL){
+ fprintf(stderr, "Pre_Process_init: can not malloc state structure\n");
+ return -1;
+ }
+
+ Pre_Process_reset(s);
+ *state = s;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Pre_Process_init(Pre_ProcessState **state)
+{
+ Pre_ProcessState* s;
+
+ if (state == (Pre_ProcessState **) NULL)
+ {
+ /* fprintf(stderr, "Pre_Process_init: invalid parameter\n"); */
+ return(-1);
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (Pre_ProcessState *) oscl_malloc(sizeof(Pre_ProcessState))) == NULL)
+ {
+ /* fprintf(stderr, "Pre_Process_init:
+ can not malloc state structure\n"); */
+ return(-1);
+ }
+
+ Pre_Process_reset(s);
+ *state = s;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pre_Process_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to structure of type Pre_ProcessState
+
+ Outputs:
+ Structure pointed to by state is initialized to zero.
+
+ Returns:
+ return_value = 0 if memory was successfully reset,
+ otherwise returns -1.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Initializes state memory to zero.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pre_proc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Pre_Process_reset (Pre_ProcessState *state)
+{
+ if (state == (Pre_ProcessState *) NULL){
+ fprintf(stderr, "Pre_Process_reset: invalid parameter\n");
+ return -1;
+ }
+
+ state->y2_hi = 0;
+ state->y2_lo = 0;
+ state->y1_hi = 0;
+ state->y1_lo = 0;
+ state->x0 = 0;
+ state->x1 = 0;
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Pre_Process_reset(Pre_ProcessState *state)
+{
+ if (state == (Pre_ProcessState *) NULL)
+ {
+ /* fprintf(stderr, "Pre_Process_reset: invalid parameter\n"); */
+ return(-1);
+ }
+
+ state->y2_hi = 0;
+ state->y2_lo = 0;
+ state->y1_hi = 0;
+ state->y1_lo = 0;
+ state->x0 = 0;
+ state->x1 = 0;
+
+ return(0);
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pre_Process_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = a pointer to an array of pointers to structures of
+ type Pre_ProcessState
+
+ Outputs:
+ state points to a NULL address
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ The memory used for state memory is freed.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pre_proc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Pre_Process_exit (Pre_ProcessState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ // deallocate memory
+ free(*state);
+ *state = NULL;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Pre_Process_exit(Pre_ProcessState **state)
+{
+ if (state == NULL || *state == NULL)
+ {
+ return;
+ }
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Pre_Process
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = a pointer to a structure of type Pre_ProcessState
+ signal = input/output signal (Word16)
+ lg = length of signal (Word16)
+
+ Outputs:
+ st points to the updated structure
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ a = points to a buffer of filter coefficients
+ b = points to a buffer of filter coefficients
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This module performs the preprocessing of the input speech.
+ The signal is passed through a 2nd order high pass filtering with cut off
+ frequency at 80 Hz. The input is divided by two in the filtering process.
+
+ y[i] = b[0]*x[i]/2 + b[1]*x[i-1]/2 + b[2]*x[i-2]/2
+ + a[1]*y[i-1] + a[2]*y[i-2];
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ pre_proc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Pre_Process (
+ Pre_ProcessState *st,
+ Word16 signal[], // input/output signal
+ Word16 lg) // lenght of signal
+{
+ Word16 i, x2;
+ Word32 L_tmp;
+
+ for (i = 0; i < lg; i++)
+ {
+ x2 = st->x1;
+ st->x1 = st->x0;
+ st->x0 = signal[i];
+
+ // y[i] = b[0]*x[i]/2 + b[1]*x[i-1]/2 + b140[2]*x[i-2]/2
+ // + a[1]*y[i-1] + a[2] * y[i-2];
+
+ L_tmp = Mpy_32_16 (st->y1_hi, st->y1_lo, a[1]);
+ L_tmp = L_add (L_tmp, Mpy_32_16 (st->y2_hi, st->y2_lo, a[2]));
+ L_tmp = L_mac (L_tmp, st->x0, b[0]);
+ L_tmp = L_mac (L_tmp, st->x1, b[1]);
+ L_tmp = L_mac (L_tmp, x2, b[2]);
+ L_tmp = L_shl (L_tmp, 3);
+ signal[i] = pv_round (L_tmp);
+
+ st->y2_hi = st->y1_hi;
+ st->y2_lo = st->y1_lo;
+ L_Extract (L_tmp, &st->y1_hi, &st->y1_lo);
+ }
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+/*
+ filter coefficients (fc = 80 Hz, coeff. b[] is divided by 2)
+ const Word16 b[3] = {1899, -3798, 1899};
+ const Word16 a[3] = {4096, 7807, -3733};
+
+*/
+
+void Pre_Process(
+ Pre_ProcessState *st,
+ Word16 signal[], /* input/output signal */
+ Word16 lg) /* length of signal */
+{
+ register Word16 i;
+ Word16 x_n_2;
+ Word16 x_n_1;
+ Word32 L_tmp;
+ Word16 *p_signal = signal;
+
+ x_n_2 = st->x1;
+ x_n_1 = st->x0;
+
+ for (i = lg; i != 0; i--)
+ {
+
+
+ /* y[i] = b[0]*x[i]/2 + b[1]*x[i-1]/2 + b140[2]*x[i-2]/2 */
+ /* + a[1]*y[i-1] + a[2] * y[i-2]; */
+
+ L_tmp = ((Word32) st->y1_hi) * 7807;
+ L_tmp += (Word32)(((Word32) st->y1_lo * 7807) >> 15);
+
+ L_tmp += ((Word32) st->y2_hi) * (-3733);
+ st->y2_hi = st->y1_hi;
+ L_tmp += (Word32)(((Word32) st->y2_lo * (-3733)) >> 15);
+ st->y2_lo = st->y1_lo;
+
+ L_tmp += ((Word32) x_n_2) * 1899;
+ x_n_2 = x_n_1;
+ L_tmp += ((Word32) x_n_1) * (-3798);
+ x_n_1 = *(p_signal);
+ L_tmp += ((Word32) x_n_1) * 1899;
+
+
+ *(p_signal++) = (Word16)((L_tmp + 0x0000800L) >> 12);
+
+ st->y1_hi = (Word16)(L_tmp >> 12);
+ st->y1_lo = (Word16)((L_tmp << 3) - ((Word32)(st->y1_hi) << 15));
+
+ }
+
+ st->x1 = x_n_2;
+ st->x0 = x_n_1;
+
+ return;
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : pre_proc.h
+* Purpose : Preprocessing of input speech.
+*
+
+ Description: Replaced "int" and/or "char" with OSCL defined types.
+
+********************************************************************************
+*/
+#ifndef pre_proc_h
+#define pre_proc_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * LOCAL VARIABLES AND TABLES
+ ********************************************************************************
+ */
+
+ /*
+ ********************************************************************************
+ * DEFINITION OF DATA TYPES
+ ********************************************************************************
+ */
+ typedef struct
+ {
+ Word16 y2_hi;
+ Word16 y2_lo;
+ Word16 y1_hi;
+ Word16 y1_lo;
+ Word16 x0;
+ Word16 x1;
+ } Pre_ProcessState;
+
+ /*
+ ********************************************************************************
+ * DECLARATION OF PROTOTYPES
+ ********************************************************************************
+ */
+
+ Word16 Pre_Process_init(Pre_ProcessState **st);
+ /* initialize one instance of the pre processing state.
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to Pre_Process in each call.
+ returns 0 on success
+ */
+
+ Word16 Pre_Process_reset(Pre_ProcessState *st);
+ /* reset of pre processing state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+ void Pre_Process_exit(Pre_ProcessState **st);
+ /* de-initialize pre processing state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ void Pre_Process(
+ Pre_ProcessState *st,
+ Word16 signal[], /* Input/output signal */
+ Word16 lg /* Lenght of signal */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+
+
+
+ Filename: prm2bits.cpp
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "prm2bits.h"
+#include "mode.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+#define MASK 0x0001
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Int2bin
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ value = value to be converted to binary of type Word16
+ no_of_bits = number of bits associated with value of type Word16
+
+ Outputs:
+ bitstream = pointer to address where bits are written of type Word16
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ FUNCTION: Int2bin
+
+ PURPOSE: convert integer to binary and write the bits to the array
+ bitstream[]. The most significant bits are written first.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ prm2bits.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static void Int2bin (
+ Word16 value, // input : value to be converted to binary
+ Word16 no_of_bits, // input : number of bits associated with value
+ Word16 *bitstream // output: address where bits are written
+)
+{
+ Word16 *pt_bitstream, i, bit;
+
+ pt_bitstream = &bitstream[no_of_bits];
+
+ for (i = 0; i < no_of_bits; i++)
+ {
+ bit = value & MASK;
+ if (bit == 0)
+ {
+ *--pt_bitstream = BIT_0;
+ }
+ else
+ {
+ *--pt_bitstream = BIT_1;
+ }
+ value = shr (value, 1);
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+static void Int2bin(
+ Word16 value, /* input : value to be converted to binary */
+ Word16 no_of_bits, /* input : number of bits associated with value */
+ Word16 *bitstream /* output: address where bits are written */
+)
+{
+ Word16 *pt_bitstream;
+ Word16 i;
+
+ pt_bitstream = &bitstream[no_of_bits-1];
+
+ for (i = no_of_bits; i != 0; i--)
+ {
+ *(pt_bitstream--) = value & MASK;
+ value >>= 1;
+ }
+
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: prm2bits
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ mode = AMR mode of type enum Mode
+ prm[] = pointer to analysis parameters of type Word16
+
+ Outputs:
+ bits[] = pointer to serial bits of type Word16
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ FUNCTION: Prm2bits
+
+ PURPOSE: converts the encoder parameter vector into a vector of serial
+ bits.
+
+ DESCRIPTION: depending on the mode, different numbers of parameters
+ (with differing numbers of bits) are processed. Details
+ are found in bitno.tab
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ prm2bits.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void Prm2bits (
+ enum Mode mode, // i : AMR mode
+ Word16 prm[], // i : analysis parameters (size <= MAX_PRM_SIZE)
+ Word16 bits[] // o : serial bits (size <= MAX_SERIAL_SIZE)
+)
+{
+ Word16 i;
+
+ for (i = 0; i < prmno[mode]; i++)
+ {
+ Int2bin (prm[i], bitno[mode][i], bits);
+ bits += bitno[mode][i];
+ add(0,0); // account for above pointer update
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void Prm2bits(
+ enum Mode mode, /* i : AMR mode */
+ Word16 prm[], /* i : analysis parameters (size <= MAX_PRM_SIZE) */
+ Word16 bits[], /* o : serial bits (size <= MAX_SERIAL_SIZE) */
+ CommonAmrTbls* common_amr_tbls /* i : ptr to strcut of table ptrs */
+)
+{
+ Word16 i;
+ const Word16 *p_mode;
+ Word16 *p_prm;
+ const Word16* prmno_ptr = common_amr_tbls->prmno_ptr;
+
+ p_mode = &common_amr_tbls->bitno_ptr[mode][0];
+ p_prm = &prm[0];
+
+ for (i = prmno_ptr[mode]; i != 0; i--)
+ {
+ Int2bin(*(p_prm++), *(p_mode), bits);
+ bits += *(p_mode++);
+ }
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+********************************************************************************
+*
+* GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001
+* R99 Version 3.2.0
+* REL-4 Version 4.0.0
+*
+********************************************************************************
+*
+* File : prm2bits.h
+* Purpose : Converts the encoder parameter vector into a
+* : vector of serial bits.
+*
+********************************************************************************
+*/
+#ifndef prm2bits_h
+#define prm2bits_h "$Id $"
+
+/*
+********************************************************************************
+* INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+#include "mode.h"
+#include "get_const_tbls.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*
+ ********************************************************************************
+ * DEFINITION OF DATA TYPES
+ ********************************************************************************
+ */
+
+ /*
+ ********************************************************************************
+ * DECLARATION OF PROTOTYPES
+ ********************************************************************************
+ */
+ void Prm2bits(
+ enum Mode mode, /* i : AMR mode */
+ Word16 prm[], /* input : analysis parameters */
+ Word16 bits[], /* output: serial bits */
+ CommonAmrTbls* common_amr_tbls /* i : ptr to strcut of table ptrs */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: q_gain_c.cpp
+ Functions: q_gain_code
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Scalar quantization of the innovative codebook gain.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "q_gain_c.h"
+#include "mode.h"
+#include "oper_32b.h"
+#include "basic_op.h"
+#include "log2.h"
+#include "pow2.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+#define NB_QUA_CODE 32
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: q_gain_code
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ mode -- enum Mode -- AMR mode
+ exp_gcode0 -- Word16 -- predicted CB gain (exponent), Q0
+ frac_gcode0 -- Word16 -- predicted CB gain (fraction), Q15
+ gain -- Pointer to Word16 -- quantized fixed codebook gain, Q1
+
+ Outputs:
+ gain -- Pointer to Word16 -- quantized fixed codebook gain, Q1
+
+ qua_ener_MR122 -- Pointer to Word16 -- quantized energy error, Q10
+ (for MR122 MA predictor update)
+
+ qua_ener -- Pointer to Word16 -- quantized energy error, Q10
+ (for other MA predictor update)
+
+ pOverflow -- Pointer to Flag -- overflow indicator
+ Returns:
+ quantization index -- Word16 -- Q0
+
+ Global Variables Used:
+ qua_gain_code[]
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Scalar quantization of the innovative codebook gain.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ q_gain_c.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 q_gain_code( /* o : quantization index, Q0 */
+ enum Mode mode, /* i : AMR mode */
+ Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 *gain, /* i/o: quantized fixed codebook gain, Q1 */
+ Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
+ /* (for MR122 MA predictor update) */
+ Word16 *qua_ener, /* o : quantized energy error, Q10 */
+ /* (for other MA predictor update) */
+ const Word16* qua_gain_code_ptr, /* i : ptr to read-only table */
+ Flag *pOverflow
+)
+{
+ const Word16 *p;
+ Word16 i;
+ Word16 index;
+ Word16 gcode0;
+ Word16 err;
+ Word16 err_min;
+ Word16 g_q0;
+ Word16 temp;
+
+ if (mode == MR122)
+ {
+ g_q0 = *gain >> 1; /* Q1 -> Q0 */
+ }
+ else
+ {
+ g_q0 = *gain;
+ }
+
+ /*-------------------------------------------------------------------*
+ * predicted codebook gain *
+ * ~~~~~~~~~~~~~~~~~~~~~~~ *
+ * gc0 = Pow2(int(d)+frac(d)) *
+ * = 2^exp + 2^frac *
+ * *
+ *-------------------------------------------------------------------*/
+
+ gcode0 = (Word16) Pow2(exp_gcode0, frac_gcode0, pOverflow); /* predicted gain */
+
+ if (mode == MR122)
+ {
+ gcode0 = shl(gcode0, 4, pOverflow);
+ }
+ else
+ {
+ gcode0 = shl(gcode0, 5, pOverflow);
+ }
+
+ /*-------------------------------------------------------------------*
+ * Search for best quantizer *
+ *-------------------------------------------------------------------*/
+
+ p = &qua_gain_code_ptr[0];
+ err_min = ((Word32)gcode0 * *(p++)) >> 15;
+ err_min = g_q0 - err_min;
+ if (err_min < 0)
+ {
+ err_min = -err_min;
+ }
+
+ p += 2; /* skip quantized energy errors */
+ index = 0;
+
+ for (i = 1; i < NB_QUA_CODE; i++)
+ {
+ err = ((Word32)gcode0 * *(p++)) >> 15;
+ err = g_q0 - err;
+
+ if (err < 0)
+ {
+ err = -err;
+ }
+
+ p += 2; /* skip quantized energy error */
+
+ if (err < err_min)
+ {
+ err_min = err;
+ index = i;
+ }
+ }
+
+ temp = index + (index << 1);
+
+ p = &qua_gain_code_ptr[temp];
+
+ temp = (gcode0 * *(p++)) >> 15;
+ if (mode == MR122)
+ {
+ *gain = temp << 1;
+ }
+ else
+ {
+ *gain = temp;
+ }
+
+ /* quantized error energies (for MA predictor update) */
+ *qua_ener_MR122 = *p++;
+ *qua_ener = *p;
+
+ return index;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: q_gain_c.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, q_gain.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef q_gain_c_h
+#define q_gain_c_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "gc_pred.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*
+ * Function q_gain_code() *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * Scalar quantization of the innovative codebook gain. *
+ * *
+ * gc_pred() is used for MA prediction of the innovation energy *
+ *--------------------------------------------------------------------------*/
+ Word16 q_gain_code( /* o : quantization index, Q0 */
+ enum Mode mode, /* i : AMR mode */
+ Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 *gain, /* i/o: quantized fixed codebook gain, Q1 */
+ Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
+ /* (for MR122 MA predictor update) */
+ Word16 *qua_ener, /* o : quantized energy error, Q10 */
+ /* (for other MA predictor update) */
+ const Word16* qua_gain_code_ptr, /* i : ptr to read-only table */
+ Flag *pOverflow
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* q_gain_c_h */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: q_gain_p.cpp
+ Functions: q_gain_pitch
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "q_gain_p.h"
+#include "typedef.h"
+#include "oper_32b.h"
+#include "cnst.h"
+#include "basic_op.h"
+
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+#define NB_QUA_PITCH 16
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: q_gain_pitch
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ mode -- enum Mode -- AMR mode
+ gp_limit -- Word16 -- pitch gain limit
+ gain -- Pointer to Word16 -- Pitch gain (unquant/quant), Q14
+
+ Outputs:
+ gain -- Pointer to Word16 -- Pitch gain (unquant/quant), Q14
+
+ gain_cand -- Array of type Word16 -- pitch gain candidates (3),
+ MR795 only, Q14
+
+ gain_cind -- Array of type Word16 -- pitch gain cand. indices (3),
+ MR795 only, Q0
+
+ pOverflow -- Pointer to Flag -- overflow indicator
+
+ Returns:
+ Word16 -- index of quantization
+
+ Global Variables Used:
+ qua_gain_pitch
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ q_gain_p.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 q_gain_pitch( /* Return index of quantization */
+ enum Mode mode, /* i : AMR mode */
+ Word16 gp_limit, /* i : pitch gain limit */
+ Word16 *gain, /* i/o: Pitch gain (unquant/quant), Q14 */
+ Word16 gain_cand[], /* o : pitch gain candidates (3), MR795 only, Q14 */
+ Word16 gain_cind[], /* o : pitch gain cand. indices (3),MR795 only, Q0 */
+ const Word16* qua_gain_pitch_ptr, /* i : ptr to read-only table */
+ Flag *pOverflow
+)
+{
+ Word16 i;
+ Word16 index;
+ Word16 err;
+ Word16 err_min;
+
+ err_min = sub(*gain, qua_gain_pitch_ptr[0], pOverflow);
+ err_min = abs_s(err_min);
+
+ index = 0;
+
+ for (i = 1; i < NB_QUA_PITCH; i++)
+ {
+ if (qua_gain_pitch_ptr[i] <= gp_limit)
+ {
+ err = sub(*gain, qua_gain_pitch_ptr[i], pOverflow);
+ err = abs_s(err);
+
+ if (err < err_min)
+ {
+ err_min = err;
+ index = i;
+ }
+ }
+ }
+
+ if (mode == MR795)
+ {
+ /* in MR795 mode, compute three gain_pit candidates around the index
+ * found in the quantization loop: the index found and the two direct
+ * neighbours, except for the extreme cases (i=0 or i=NB_QUA_PITCH-1),
+ * where the direct neighbour and the neighbour to that is used.
+ */
+ Word16 ii;
+
+ if (index == 0)
+ {
+ ii = index;
+ }
+ else
+ {
+ if (index == (NB_QUA_PITCH - 1) ||
+ (qua_gain_pitch_ptr[index+1] > gp_limit))
+ {
+ ii = index - 2;
+ }
+ else
+ {
+ ii = index - 1;
+ }
+ }
+
+ /* store candidate indices and values */
+ for (i = 0; i < 3; i++)
+ {
+ gain_cind[i] = ii;
+ gain_cand[i] = qua_gain_pitch_ptr[ii];
+
+ ii += 1;
+ }
+
+ *gain = qua_gain_pitch_ptr[index];
+ }
+ else
+ {
+ /* in MR122 mode, just return the index and gain pitch found.
+ * If bitexactness is required, mask away the two LSBs (because
+ * in the original EFR, gain_pit was scaled Q12)
+ */
+ if (mode == MR122)
+ {
+ /* clear 2 LSBits */
+ *gain = qua_gain_pitch_ptr[index] & 0xFFFC;
+ }
+ else
+ {
+ *gain = qua_gain_pitch_ptr[index];
+ }
+ }
+ return index;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: q_gain_p.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, q_gain_p.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef q_gain_p_h
+#define q_gain_p_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ Word16 q_gain_pitch( /* Return index of quantization */
+ enum Mode mode, /* i : AMR mode */
+ Word16 gp_limit, /* i : pitch gain limit */
+ Word16 *gain, /* i/o: Pitch gain (unquant/quant), Q14 */
+ Word16 gain_cand[], /* o : pitch gain candidates (3), MR795 only, Q14 */
+ Word16 gain_cind[], /* o : pitch gain cand. indices (3),MR795 only, Q0 */
+ const Word16* qua_gain_pitch_ptr, /* i : ptr to read-only table */
+ Flag *pOverflow
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* q_gain_p_h */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: qgain475.cpp
+ Funtions: MR475_quant_store_results
+ MR475_update_unq_pred
+ MR475_gain_quant
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ These modules handle the quantization of pitch and codebook gains for MR475.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "qgain475.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "mode.h"
+#include "cnst.h"
+#include "pow2.h"
+#include "log2.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define MR475_VQ_SIZE 256
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/* The table contains the following data:
+ *
+ * g_pitch(0) (Q14) // for sub-
+ * g_fac(0) (Q12) // frame 0 and 2
+ * g_pitch(1) (Q14) // for sub-
+ * g_fac(2) (Q12) // frame 1 and 3
+ *
+ */
+static const Word16 table_gain_MR475[MR475_VQ_SIZE*4] =
+{
+ /*g_pit(0), g_fac(0), g_pit(1), g_fac(1) */
+ 812, 128, 542, 140,
+ 2873, 1135, 2266, 3402,
+ 2067, 563, 12677, 647,
+ 4132, 1798, 5601, 5285,
+ 7689, 374, 3735, 441,
+ 10912, 2638, 11807, 2494,
+ 20490, 797, 5218, 675,
+ 6724, 8354, 5282, 1696,
+ 1488, 428, 5882, 452,
+ 5332, 4072, 3583, 1268,
+ 2469, 901, 15894, 1005,
+ 14982, 3271, 10331, 4858,
+ 3635, 2021, 2596, 835,
+ 12360, 4892, 12206, 1704,
+ 13432, 1604, 9118, 2341,
+ 3968, 1538, 5479, 9936,
+ 3795, 417, 1359, 414,
+ 3640, 1569, 7995, 3541,
+ 11405, 645, 8552, 635,
+ 4056, 1377, 16608, 6124,
+ 11420, 700, 2007, 607,
+ 12415, 1578, 11119, 4654,
+ 13680, 1708, 11990, 1229,
+ 7996, 7297, 13231, 5715,
+ 2428, 1159, 2073, 1941,
+ 6218, 6121, 3546, 1804,
+ 8925, 1802, 8679, 1580,
+ 13935, 3576, 13313, 6237,
+ 6142, 1130, 5994, 1734,
+ 14141, 4662, 11271, 3321,
+ 12226, 1551, 13931, 3015,
+ 5081, 10464, 9444, 6706,
+ 1689, 683, 1436, 1306,
+ 7212, 3933, 4082, 2713,
+ 7793, 704, 15070, 802,
+ 6299, 5212, 4337, 5357,
+ 6676, 541, 6062, 626,
+ 13651, 3700, 11498, 2408,
+ 16156, 716, 12177, 751,
+ 8065, 11489, 6314, 2256,
+ 4466, 496, 7293, 523,
+ 10213, 3833, 8394, 3037,
+ 8403, 966, 14228, 1880,
+ 8703, 5409, 16395, 4863,
+ 7420, 1979, 6089, 1230,
+ 9371, 4398, 14558, 3363,
+ 13559, 2873, 13163, 1465,
+ 5534, 1678, 13138, 14771,
+ 7338, 600, 1318, 548,
+ 4252, 3539, 10044, 2364,
+ 10587, 622, 13088, 669,
+ 14126, 3526, 5039, 9784,
+ 15338, 619, 3115, 590,
+ 16442, 3013, 15542, 4168,
+ 15537, 1611, 15405, 1228,
+ 16023, 9299, 7534, 4976,
+ 1990, 1213, 11447, 1157,
+ 12512, 5519, 9475, 2644,
+ 7716, 2034, 13280, 2239,
+ 16011, 5093, 8066, 6761,
+ 10083, 1413, 5002, 2347,
+ 12523, 5975, 15126, 2899,
+ 18264, 2289, 15827, 2527,
+ 16265, 10254, 14651, 11319,
+ 1797, 337, 3115, 397,
+ 3510, 2928, 4592, 2670,
+ 7519, 628, 11415, 656,
+ 5946, 2435, 6544, 7367,
+ 8238, 829, 4000, 863,
+ 10032, 2492, 16057, 3551,
+ 18204, 1054, 6103, 1454,
+ 5884, 7900, 18752, 3468,
+ 1864, 544, 9198, 683,
+ 11623, 4160, 4594, 1644,
+ 3158, 1157, 15953, 2560,
+ 12349, 3733, 17420, 5260,
+ 6106, 2004, 2917, 1742,
+ 16467, 5257, 16787, 1680,
+ 17205, 1759, 4773, 3231,
+ 7386, 6035, 14342, 10012,
+ 4035, 442, 4194, 458,
+ 9214, 2242, 7427, 4217,
+ 12860, 801, 11186, 825,
+ 12648, 2084, 12956, 6554,
+ 9505, 996, 6629, 985,
+ 10537, 2502, 15289, 5006,
+ 12602, 2055, 15484, 1653,
+ 16194, 6921, 14231, 5790,
+ 2626, 828, 5615, 1686,
+ 13663, 5778, 3668, 1554,
+ 11313, 2633, 9770, 1459,
+ 14003, 4733, 15897, 6291,
+ 6278, 1870, 7910, 2285,
+ 16978, 4571, 16576, 3849,
+ 15248, 2311, 16023, 3244,
+ 14459, 17808, 11847, 2763,
+ 1981, 1407, 1400, 876,
+ 4335, 3547, 4391, 4210,
+ 5405, 680, 17461, 781,
+ 6501, 5118, 8091, 7677,
+ 7355, 794, 8333, 1182,
+ 15041, 3160, 14928, 3039,
+ 20421, 880, 14545, 852,
+ 12337, 14708, 6904, 1920,
+ 4225, 933, 8218, 1087,
+ 10659, 4084, 10082, 4533,
+ 2735, 840, 20657, 1081,
+ 16711, 5966, 15873, 4578,
+ 10871, 2574, 3773, 1166,
+ 14519, 4044, 20699, 2627,
+ 15219, 2734, 15274, 2186,
+ 6257, 3226, 13125, 19480,
+ 7196, 930, 2462, 1618,
+ 4515, 3092, 13852, 4277,
+ 10460, 833, 17339, 810,
+ 16891, 2289, 15546, 8217,
+ 13603, 1684, 3197, 1834,
+ 15948, 2820, 15812, 5327,
+ 17006, 2438, 16788, 1326,
+ 15671, 8156, 11726, 8556,
+ 3762, 2053, 9563, 1317,
+ 13561, 6790, 12227, 1936,
+ 8180, 3550, 13287, 1778,
+ 16299, 6599, 16291, 7758,
+ 8521, 2551, 7225, 2645,
+ 18269, 7489, 16885, 2248,
+ 17882, 2884, 17265, 3328,
+ 9417, 20162, 11042, 8320,
+ 1286, 620, 1431, 583,
+ 5993, 2289, 3978, 3626,
+ 5144, 752, 13409, 830,
+ 5553, 2860, 11764, 5908,
+ 10737, 560, 5446, 564,
+ 13321, 3008, 11946, 3683,
+ 19887, 798, 9825, 728,
+ 13663, 8748, 7391, 3053,
+ 2515, 778, 6050, 833,
+ 6469, 5074, 8305, 2463,
+ 6141, 1865, 15308, 1262,
+ 14408, 4547, 13663, 4515,
+ 3137, 2983, 2479, 1259,
+ 15088, 4647, 15382, 2607,
+ 14492, 2392, 12462, 2537,
+ 7539, 2949, 12909, 12060,
+ 5468, 684, 3141, 722,
+ 5081, 1274, 12732, 4200,
+ 15302, 681, 7819, 592,
+ 6534, 2021, 16478, 8737,
+ 13364, 882, 5397, 899,
+ 14656, 2178, 14741, 4227,
+ 14270, 1298, 13929, 2029,
+ 15477, 7482, 15815, 4572,
+ 2521, 2013, 5062, 1804,
+ 5159, 6582, 7130, 3597,
+ 10920, 1611, 11729, 1708,
+ 16903, 3455, 16268, 6640,
+ 9306, 1007, 9369, 2106,
+ 19182, 5037, 12441, 4269,
+ 15919, 1332, 15357, 3512,
+ 11898, 14141, 16101, 6854,
+ 2010, 737, 3779, 861,
+ 11454, 2880, 3564, 3540,
+ 9057, 1241, 12391, 896,
+ 8546, 4629, 11561, 5776,
+ 8129, 589, 8218, 588,
+ 18728, 3755, 12973, 3149,
+ 15729, 758, 16634, 754,
+ 15222, 11138, 15871, 2208,
+ 4673, 610, 10218, 678,
+ 15257, 4146, 5729, 3327,
+ 8377, 1670, 19862, 2321,
+ 15450, 5511, 14054, 5481,
+ 5728, 2888, 7580, 1346,
+ 14384, 5325, 16236, 3950,
+ 15118, 3744, 15306, 1435,
+ 14597, 4070, 12301, 15696,
+ 7617, 1699, 2170, 884,
+ 4459, 4567, 18094, 3306,
+ 12742, 815, 14926, 907,
+ 15016, 4281, 15518, 8368,
+ 17994, 1087, 2358, 865,
+ 16281, 3787, 15679, 4596,
+ 16356, 1534, 16584, 2210,
+ 16833, 9697, 15929, 4513,
+ 3277, 1085, 9643, 2187,
+ 11973, 6068, 9199, 4462,
+ 8955, 1629, 10289, 3062,
+ 16481, 5155, 15466, 7066,
+ 13678, 2543, 5273, 2277,
+ 16746, 6213, 16655, 3408,
+ 20304, 3363, 18688, 1985,
+ 14172, 12867, 15154, 15703,
+ 4473, 1020, 1681, 886,
+ 4311, 4301, 8952, 3657,
+ 5893, 1147, 11647, 1452,
+ 15886, 2227, 4582, 6644,
+ 6929, 1205, 6220, 799,
+ 12415, 3409, 15968, 3877,
+ 19859, 2109, 9689, 2141,
+ 14742, 8830, 14480, 2599,
+ 1817, 1238, 7771, 813,
+ 19079, 4410, 5554, 2064,
+ 3687, 2844, 17435, 2256,
+ 16697, 4486, 16199, 5388,
+ 8028, 2763, 3405, 2119,
+ 17426, 5477, 13698, 2786,
+ 19879, 2720, 9098, 3880,
+ 18172, 4833, 17336, 12207,
+ 5116, 996, 4935, 988,
+ 9888, 3081, 6014, 5371,
+ 15881, 1667, 8405, 1183,
+ 15087, 2366, 19777, 7002,
+ 11963, 1562, 7279, 1128,
+ 16859, 1532, 15762, 5381,
+ 14708, 2065, 20105, 2155,
+ 17158, 8245, 17911, 6318,
+ 5467, 1504, 4100, 2574,
+ 17421, 6810, 5673, 2888,
+ 16636, 3382, 8975, 1831,
+ 20159, 4737, 19550, 7294,
+ 6658, 2781, 11472, 3321,
+ 19397, 5054, 18878, 4722,
+ 16439, 2373, 20430, 4386,
+ 11353, 26526, 11593, 3068,
+ 2866, 1566, 5108, 1070,
+ 9614, 4915, 4939, 3536,
+ 7541, 878, 20717, 851,
+ 6938, 4395, 16799, 7733,
+ 10137, 1019, 9845, 964,
+ 15494, 3955, 15459, 3430,
+ 18863, 982, 20120, 963,
+ 16876, 12887, 14334, 4200,
+ 6599, 1220, 9222, 814,
+ 16942, 5134, 5661, 4898,
+ 5488, 1798, 20258, 3962,
+ 17005, 6178, 17929, 5929,
+ 9365, 3420, 7474, 1971,
+ 19537, 5177, 19003, 3006,
+ 16454, 3788, 16070, 2367,
+ 8664, 2743, 9445, 26358,
+ 10856, 1287, 3555, 1009,
+ 5606, 3622, 19453, 5512,
+ 12453, 797, 20634, 911,
+ 15427, 3066, 17037, 10275,
+ 18883, 2633, 3913, 1268,
+ 19519, 3371, 18052, 5230,
+ 19291, 1678, 19508, 3172,
+ 18072, 10754, 16625, 6845,
+ 3134, 2298, 10869, 2437,
+ 15580, 6913, 12597, 3381,
+ 11116, 3297, 16762, 2424,
+ 18853, 6715, 17171, 9887,
+ 12743, 2605, 8937, 3140,
+ 19033, 7764, 18347, 3880,
+ 20475, 3682, 19602, 3380,
+ 13044, 19373, 10526, 23124
+};
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: MR475_quant_store_results
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pred_st = pointer to structure of type gc_predState
+ p = pointer to selected quantizer table entry (const Word16)
+ gcode0 = predicted CB gain (Word16)
+ exp_gcode0 = exponent of predicted CB gain (Word16)
+ gain_pit = pointer to Pitch gain (Word16)
+ gain_cod = pointer to Code gain (Word16)
+
+ Outputs:
+ pred_st points to the updated structure of type gc_predState
+ gain_pit points to Pitch gain
+ gain_cod points to Code gain
+ pOverflow points to overflow indicator (Flag)
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function calculates the final fixed codebook gain and the predictor
+ update values, and updates the gain predictor.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ qgain475.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+static void MR475_quant_store_results(
+
+ gc_predState *pred_st, // i/o: gain predictor state struct
+ const Word16 *p, // i : pointer to selected quantizer table entry
+ Word16 gcode0, // i : predicted CB gain, Q(14 - exp_gcode0)
+ Word16 exp_gcode0, // i : exponent of predicted CB gain, Q0
+ Word16 *gain_pit, // o : Pitch gain, Q14
+ Word16 *gain_cod // o : Code gain, Q1
+)
+{
+
+ Word16 g_code, exp, frac, tmp;
+ Word32 L_tmp;
+
+ Word16 qua_ener_MR122; // o : quantized energy error, MR122 version Q10
+ Word16 qua_ener; // o : quantized energy error, Q10
+
+ // Read the quantized gains
+ *gain_pit = *p++;
+ g_code = *p++;
+
+ //------------------------------------------------------------------*
+ * calculate final fixed codebook gain: *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * gc = gc0 * g *
+ *------------------------------------------------------------------
+
+ L_tmp = L_mult(g_code, gcode0);
+ L_tmp = L_shr(L_tmp, sub(10, exp_gcode0));
+ *gain_cod = extract_h(L_tmp);
+
+ //------------------------------------------------------------------*
+ * calculate predictor update values and update gain predictor: *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * qua_ener = log2(g) *
+ * qua_ener_MR122 = 20*log10(g) *
+ *------------------------------------------------------------------
+
+ Log2 (L_deposit_l (g_code), &exp, &frac); // Log2(x Q12) = log2(x) + 12
+ exp = sub(exp, 12);
+
+ tmp = shr_r (frac, 5);
+ qua_ener_MR122 = add (tmp, shl (exp, 10));
+
+ L_tmp = Mpy_32_16(exp, frac, 24660); // 24660 Q12 ~= 6.0206 = 20*log10(2)
+ qua_ener = pv_round (L_shl (L_tmp, 13)); // Q12 * Q0 = Q13 -> Q10
+
+ gc_pred_update(pred_st, qua_ener_MR122, qua_ener);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void MR475_quant_store_results(
+ gc_predState *pred_st, /* i/o: gain predictor state struct */
+ const Word16 *p, /* i : pointer to selected quantizer table entry */
+ Word16 gcode0, /* i : predicted CB gain, Q(14 - exp_gcode0) */
+ Word16 exp_gcode0, /* i : exponent of predicted CB gain, Q0 */
+ Word16 *gain_pit, /* o : Pitch gain, Q14 */
+ Word16 *gain_cod, /* o : Code gain, Q1 */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ Word16 g_code;
+ Word16 exp;
+ Word16 frac;
+ Word16 tmp;
+ Word32 L_tmp;
+
+ Word16 qua_ener_MR122; /* o : quantized energy error, MR122 version Q10 */
+ Word16 qua_ener; /* o : quantized energy error, Q10 */
+
+
+ /* Read the quantized gains */
+ *gain_pit = *p++;
+ g_code = *p++;
+
+ /*------------------------------------------------------------------*
+ * calculate final fixed codebook gain: *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * gc = gc0 * g *
+ *------------------------------------------------------------------*/
+
+ L_tmp = ((Word32) g_code * gcode0) << 1;
+ tmp = 10 - exp_gcode0;
+ L_tmp = L_shr(L_tmp, tmp, pOverflow);
+ *gain_cod = (Word16)(L_tmp >> 16);
+
+ /*------------------------------------------------------------------*
+ * calculate predictor update values and update gain predictor: *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * qua_ener = log2(g) *
+ * qua_ener_MR122 = 20*log10(g) *
+ *------------------------------------------------------------------*/
+
+ /* Log2(x Q12) = log2(x) + 12 */
+ Log2((Word32) g_code, &exp, &frac, pOverflow);
+ exp -= 12;
+
+ tmp = shr_r(frac, 5, pOverflow);
+ qua_ener_MR122 = exp << 10;
+ qua_ener_MR122 = tmp + qua_ener_MR122;
+
+ /* 24660 Q12 ~= 6.0206 = 20*log10(2) */
+ L_tmp = Mpy_32_16(exp, frac, 24660, pOverflow);
+ L_tmp = L_tmp << 13;
+
+ /* Q12 * Q0 = Q13 -> Q10 */
+ qua_ener = (Word16)((L_tmp + (Word32) 0x00008000L) >> 16);
+
+ gc_pred_update(pred_st, qua_ener_MR122, qua_ener);
+
+ return;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: MR475_update_unq_pred
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pred_st = pointer to structure of type gc_predState
+ exp_gcode0 = predicted CB gain (exponent MSW) (Word16)
+ frac_gcode0 = predicted CB gain (exponent LSW) (Word16)
+ cod_gain_exp = optimum codebook gain (exponent)(Word16)
+ cod_gain_frac = optimum codebook gain (fraction) (Word16)
+
+ Outputs:
+ pred_st points to the updated structure of type gc_predState
+ pOverflow points to overflow indicator (Flag)
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This module uses the optimum codebook gain and updates the "unquantized"
+ gain predictor with the (bounded) prediction error.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ qgain475.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void
+MR475_update_unq_pred(
+ gc_predState *pred_st, // i/o: gain predictor state struct
+ Word16 exp_gcode0, // i : predicted CB gain (exponent MSW), Q0
+ Word16 frac_gcode0, // i : predicted CB gain (exponent LSW), Q15
+ Word16 cod_gain_exp, // i : optimum codebook gain (exponent), Q0
+ Word16 cod_gain_frac // i : optimum codebook gain (fraction), Q15
+)
+{
+ Word16 tmp, exp, frac;
+ Word16 qua_ener, qua_ener_MR122;
+ Word32 L_tmp;
+
+ // calculate prediction error factor (given optimum CB gain gcu):
+ // predErrFact = gcu / gcode0
+ // (limit to MIN_PRED_ERR_FACT <= predErrFact <= MAX_PRED_ERR_FACT
+ // -> limit qua_ener*)
+ //
+ // calculate prediction error (log):
+ //
+ // qua_ener_MR122 = log2(predErrFact)
+ // qua_ener = 20*log10(predErrFact)
+
+ if (cod_gain_frac <= 0)
+ {
+ // if gcu <= 0 -> predErrFact = 0 < MIN_PRED_ERR_FACT
+ // -> set qua_ener(_MR122) directly
+ qua_ener = MIN_QUA_ENER;
+ qua_ener_MR122 = MIN_QUA_ENER_MR122;
+ }
+ else
+ {
+ // convert gcode0 from DPF to standard fraction/exponent format
+ // with normalized frac, i.e. 16384 <= frac <= 32767
+ // Note: exponent correction (exp=exp-14) is done after div_s
+ frac_gcode0 = extract_l (Pow2 (14, frac_gcode0));
+
+ // make sure cod_gain_frac < frac_gcode0 for div_s
+ if (sub(cod_gain_frac, frac_gcode0) >= 0)
+ {
+ cod_gain_frac = shr (cod_gain_frac, 1);
+ cod_gain_exp = add (cod_gain_exp, 1);
+ }
+
+ // predErrFact
+ // = gcu / gcode0
+ // = cod_gain_frac/frac_gcode0 * 2^(cod_gain_exp-(exp_gcode0-14))
+ // = div_s (c_g_f, frac_gcode0)*2^-15 * 2^(c_g_e-exp_gcode0+14)
+ // = div_s * 2^(cod_gain_exp-exp_gcode0 - 1)
+
+ frac = div_s (cod_gain_frac, frac_gcode0);
+ tmp = sub (sub (cod_gain_exp, exp_gcode0), 1);
+
+ Log2 (L_deposit_l (frac), &exp, &frac);
+ exp = add (exp, tmp);
+
+ // calculate prediction error (log2, Q10)
+ qua_ener_MR122 = shr_r (frac, 5);
+ qua_ener_MR122 = add (qua_ener_MR122, shl (exp, 10));
+
+ if (sub(qua_ener_MR122, MIN_QUA_ENER_MR122) < 0)
+ {
+ qua_ener = MIN_QUA_ENER;
+ qua_ener_MR122 = MIN_QUA_ENER_MR122;
+ }
+ else if (sub(qua_ener_MR122, MAX_QUA_ENER_MR122) > 0)
+ {
+ qua_ener = MAX_QUA_ENER;
+ qua_ener_MR122 = MAX_QUA_ENER_MR122;
+ }
+ else
+ {
+ // calculate prediction error (20*log10, Q10)
+ L_tmp = Mpy_32_16(exp, frac, 24660);
+ // 24660 Q12 ~= 6.0206 = 20*log10(2)
+ qua_ener = pv_round (L_shl (L_tmp, 13));
+ // Q12 * Q0 = Q13 -> Q26 -> Q10
+ }
+ }
+
+ // update MA predictor memory
+ gc_pred_update(pred_st, qua_ener_MR122, qua_ener);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void MR475_update_unq_pred(
+ gc_predState *pred_st, /* i/o: gain predictor state struct */
+ Word16 exp_gcode0, /* i : predicted CB gain (exponent MSW), Q0 */
+ Word16 frac_gcode0, /* i : predicted CB gain (exponent LSW), Q15 */
+ Word16 cod_gain_exp, /* i : optimum codebook gain (exponent), Q0 */
+ Word16 cod_gain_frac, /* i : optimum codebook gain (fraction), Q15 */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ Word16 tmp;
+ Word16 exp;
+ Word16 frac;
+ Word16 qua_ener;
+ Word16 qua_ener_MR122;
+ Word32 L_tmp;
+
+ /* calculate prediction error factor (given optimum CB gain gcu):
+ *
+ * predErrFact = gcu / gcode0
+ * (limit to MIN_PRED_ERR_FACT <= predErrFact <= MAX_PRED_ERR_FACT
+ * -> limit qua_ener*)
+ *
+ * calculate prediction error (log):
+ *
+ * qua_ener_MR122 = log2(predErrFact)
+ * qua_ener = 20*log10(predErrFact)
+ *
+ */
+
+ if (cod_gain_frac <= 0)
+ {
+ /* if gcu <= 0 -> predErrFact = 0 < MIN_PRED_ERR_FACT */
+ /* -> set qua_ener(_MR122) directly */
+ qua_ener = MIN_QUA_ENER;
+ qua_ener_MR122 = MIN_QUA_ENER_MR122;
+ }
+ else
+ {
+ /* convert gcode0 from DPF to standard fraction/exponent format */
+ /* with normalized frac, i.e. 16384 <= frac <= 32767 */
+ /* Note: exponent correction (exp=exp-14) is done after div_s */
+ frac_gcode0 = (Word16)(Pow2(14, frac_gcode0, pOverflow));
+
+ /* make sure cod_gain_frac < frac_gcode0 for div_s */
+ if (cod_gain_frac >= frac_gcode0)
+ {
+ cod_gain_frac >>= 1;
+ cod_gain_exp += 1;
+ }
+
+ /*
+ predErrFact
+ = gcu / gcode0
+ = cod_gain_frac/frac_gcode0 * 2^(cod_gain_exp-(exp_gcode0-14))
+ = div_s (c_g_f, frac_gcode0)*2^-15 * 2^(c_g_e-exp_gcode0+14)
+ = div_s * 2^(cod_gain_exp-exp_gcode0 - 1)
+ */
+ frac = div_s(cod_gain_frac, frac_gcode0);
+ tmp = cod_gain_exp - exp_gcode0;
+ tmp -= 1;
+
+ Log2((Word32) frac, &exp, &frac, pOverflow);
+ exp += tmp;
+
+ /* calculate prediction error (log2, Q10) */
+ qua_ener_MR122 = shr_r(frac, 5, pOverflow);
+ tmp = exp << 10;
+ qua_ener_MR122 += tmp;
+
+ if (qua_ener_MR122 > MAX_QUA_ENER_MR122)
+ {
+ qua_ener = MAX_QUA_ENER;
+ qua_ener_MR122 = MAX_QUA_ENER_MR122;
+ }
+ else
+ {
+ /* calculate prediction error (20*log10, Q10) */
+ L_tmp = Mpy_32_16(exp, frac, 24660, pOverflow);
+ /* 24660 Q12 ~= 6.0206 = 20*log10(2) */
+ L_tmp = L_shl(L_tmp, 13, pOverflow);
+ qua_ener = pv_round(L_tmp, pOverflow);
+
+ /* Q12 * Q0 = Q13 -> Q26 -> Q10 */
+ }
+ }
+
+ /* update MA predictor memory */
+ gc_pred_update(pred_st, qua_ener_MR122, qua_ener);
+
+
+ return;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: MR475_gain_quant
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ pred_st = pointer to structure of type gc_predState
+ sf0_exp_gcode0 = predicted CB gain (exponent) (Word16)
+ f0_frac_gcode0 = predicted CB gain (fraction) (Word16)
+ sf0_exp_coeff = energy coeff. (exponent part) (Word16)
+ sf0_frac_coeff = energy coeff. ((fraction part) (Word16)
+ sf0_exp_target_en = exponent of target energy (Word16)
+ sf0_frac_target_en = fraction of target energy (Word16)
+ sf1_code_nosharp = innovative codebook vector (Word16)
+ sf1_exp_gcode0 = predicted CB gain (exponent) (Word16)
+ sf1_frac_gcode0 = predicted CB gain (fraction) (Word16)
+ sf1_exp_coeff = energy coeff. (exponent part) (Word16)
+ sf1_frac_coeff = energy coeff. (fraction part) (Word16)
+ sf1_exp_target_en = exponent of target energy (Word16)
+ sf1_frac_target_en = fraction of target energy (Word16)
+ gp_limit = pitch gain limit (Word16)
+ sf0_gain_pit = pointer to Pitch gain (Word16)
+ sf0_gain_cod = pointer to Code gain (Word16)
+ sf1_gain_pit = pointer to Pitch gain (Word16)
+ sf1_gain_cod = pointer to Code gain (Word16)
+
+ Outputs:
+ pred_st points to the updated structure of type gc_predState
+ sf0_gain_pit points to Pitch gain
+ sf0_gain_cod points to Code gain
+ sf1_gain_pit points to Pitch gain
+ sf1_gain_cod points to Code gain
+
+ Returns:
+ index = index of quantization
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This module provides quantization of pitch and codebook gains for two
+ subframes using the predicted codebook gain.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ qgain475.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16
+MR475_gain_quant( // o : index of quantization.
+ gc_predState *pred_st, // i/o: gain predictor state struct
+
+ // data from subframe 0 (or 2)
+ Word16 sf0_exp_gcode0, // i : predicted CB gain (exponent), Q0
+ Word16 sf0_frac_gcode0, // i : predicted CB gain (fraction), Q15
+ Word16 sf0_exp_coeff[], // i : energy coeff. (5), exponent part, Q0
+ Word16 sf0_frac_coeff[], // i : energy coeff. (5), fraction part, Q15
+ // (frac_coeff and exp_coeff computed in
+ // calc_filt_energies())
+ Word16 sf0_exp_target_en, // i : exponent of target energy, Q0
+ Word16 sf0_frac_target_en, // i : fraction of target energy, Q15
+
+ // data from subframe 1 (or 3)
+ Word16 sf1_code_nosharp[], // i : innovative codebook vector (L_SUBFR)
+ // (whithout pitch sharpening)
+ Word16 sf1_exp_gcode0, // i : predicted CB gain (exponent), Q0
+ Word16 sf1_frac_gcode0, // i : predicted CB gain (fraction), Q15
+ Word16 sf1_exp_coeff[], // i : energy coeff. (5), exponent part, Q0
+ Word16 sf1_frac_coeff[], // i : energy coeff. (5), fraction part, Q15
+ // (frac_coeff and exp_coeff computed in
+ // calc_filt_energies())
+ Word16 sf1_exp_target_en, // i : exponent of target energy, Q0
+ Word16 sf1_frac_target_en, // i : fraction of target energy, Q15
+
+ Word16 gp_limit, // i : pitch gain limit
+
+ Word16 *sf0_gain_pit, // o : Pitch gain, Q14
+ Word16 *sf0_gain_cod, // o : Code gain, Q1
+
+ Word16 *sf1_gain_pit, // o : Pitch gain, Q14
+ Word16 *sf1_gain_cod // o : Code gain, Q1
+)
+{
+ const Word16 *p;
+ Word16 i, index = 0;
+ Word16 tmp;
+ Word16 exp;
+ Word16 sf0_gcode0, sf1_gcode0;
+ Word16 g_pitch, g2_pitch, g_code, g2_code, g_pit_cod;
+ Word16 coeff[10], coeff_lo[10], exp_max[10]; // 0..4: sf0; 5..9: sf1
+ Word32 L_tmp, dist_min;
+
+ *-------------------------------------------------------------------*
+ * predicted codebook gain *
+ * ~~~~~~~~~~~~~~~~~~~~~~~ *
+ * gc0 = 2^exp_gcode0 + 2^frac_gcode0 *
+ * *
+ * gcode0 (Q14) = 2^14*2^frac_gcode0 = gc0 * 2^(14-exp_gcode0) *
+ *-------------------------------------------------------------------*
+
+ sf0_gcode0 = extract_l(Pow2(14, sf0_frac_gcode0));
+ sf1_gcode0 = extract_l(Pow2(14, sf1_frac_gcode0));
+
+ * For each subframe, the error energy (sum) to be minimized consists
+ * of five terms, t[0..4].
+ *
+ * t[0] = gp^2 * <y1 y1>
+ * t[1] = -2*gp * <xn y1>
+ * t[2] = gc^2 * <y2 y2>
+ * t[3] = -2*gc * <xn y2>
+ * t[4] = 2*gp*gc * <y1 y2>
+ *
+
+ // sf 0
+ // determine the scaling exponent for g_code: ec = ec0 - 11
+ exp = sub(sf0_exp_gcode0, 11);
+
+ // calculate exp_max[i] = s[i]-1
+ exp_max[0] = sub(sf0_exp_coeff[0], 13);
+ exp_max[1] = sub(sf0_exp_coeff[1], 14);
+ exp_max[2] = add(sf0_exp_coeff[2], add(15, shl(exp, 1)));
+ exp_max[3] = add(sf0_exp_coeff[3], exp);
+ exp_max[4] = add(sf0_exp_coeff[4], add(1, exp));
+
+ // sf 1
+ // determine the scaling exponent for g_code: ec = ec0 - 11
+ exp = sub(sf1_exp_gcode0, 11);
+
+ // calculate exp_max[i] = s[i]-1
+ exp_max[5] = sub(sf1_exp_coeff[0], 13);
+ exp_max[6] = sub(sf1_exp_coeff[1], 14);
+ exp_max[7] = add(sf1_exp_coeff[2], add(15, shl(exp, 1)));
+ exp_max[8] = add(sf1_exp_coeff[3], exp);
+ exp_max[9] = add(sf1_exp_coeff[4], add(1, exp));
+
+ *-------------------------------------------------------------------*
+ * Gain search equalisation: *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * The MSE for the two subframes is weighted differently if there *
+ * is a big difference in the corresponding target energies *
+ *-------------------------------------------------------------------*
+
+ // make the target energy exponents the same by de-normalizing the
+ // fraction of the smaller one. This is necessary to be able to compare
+ // them
+
+ exp = sf0_exp_target_en - sf1_exp_target_en;
+ if (exp > 0)
+ {
+ sf1_frac_target_en = shr (sf1_frac_target_en, exp);
+ }
+ else
+ {
+ sf0_frac_target_en = shl (sf0_frac_target_en, exp);
+ }
+
+ // assume no change of exponents
+ exp = 0;
+
+ // test for target energy difference; set exp to +1 or -1 to scale
+ // up/down coefficients for sf 1
+
+ tmp = shr_r (sf1_frac_target_en, 1); // tmp = ceil(0.5*en(sf1))
+ if (sub (tmp, sf0_frac_target_en) > 0) // tmp > en(sf0)?
+ {
+ // target_energy(sf1) > 2*target_energy(sf0)
+ // -> scale up MSE(sf0) by 2 by adding 1 to exponents 0..4
+ exp = 1;
+ }
+ else
+ {
+ tmp = shr (add (sf0_frac_target_en, 3), 2); // tmp=ceil(0.25*en(sf0))
+ if (sub (tmp, sf1_frac_target_en) > 0) // tmp > en(sf1)?
+ {
+ // target_energy(sf1) < 0.25*target_energy(sf0)
+ // -> scale down MSE(sf0) by 0.5 by subtracting 1 from
+ // coefficients 0..4
+ exp = -1;
+ }
+ }
+
+ for (i = 0; i < 5; i++)
+ {
+ exp_max[i] = add (exp_max[i], exp);
+ }
+
+ *-------------------------------------------------------------------*
+ * Find maximum exponent: *
+ * ~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * For the sum operation, all terms must have the same scaling; *
+ * that scaling should be low enough to prevent overflow. There- *
+ * fore, the maximum scale is determined and all coefficients are *
+ * re-scaled: *
+ * *
+ * exp = max(exp_max[i]) + 1; *
+ * e = exp_max[i]-exp; e <= 0! *
+ * c[i] = c[i]*2^e *
+ *-------------------------------------------------------------------*
+
+ exp = exp_max[0];
+ for (i = 1; i < 10; i++)
+ {
+ if (sub(exp_max[i], exp) > 0)
+ {
+ exp = exp_max[i];
+ }
+ }
+ exp = add(exp, 1); // To avoid overflow
+
+ p = &sf0_frac_coeff[0];
+ for (i = 0; i < 5; i++) {
+ tmp = sub(exp, exp_max[i]);
+ L_tmp = L_deposit_h(*p++);
+ L_tmp = L_shr(L_tmp, tmp);
+ L_Extract(L_tmp, &coeff[i], &coeff_lo[i]);
+ }
+ p = &sf1_frac_coeff[0];
+ for (; i < 10; i++) {
+ tmp = sub(exp, exp_max[i]);
+ L_tmp = L_deposit_h(*p++);
+ L_tmp = L_shr(L_tmp, tmp);
+ L_Extract(L_tmp, &coeff[i], &coeff_lo[i]);
+ }
+
+ //-------------------------------------------------------------------*
+ * Codebook search: *
+ * ~~~~~~~~~~~~~~~~ *
+ * *
+ * For each pair (g_pitch, g_fac) in the table calculate the *
+ * terms t[0..4] and sum them up; the result is the mean squared *
+ * error for the quantized gains from the table. The index for the *
+ * minimum MSE is stored and finally used to retrieve the quantized *
+ * gains *
+ *-------------------------------------------------------------------
+
+ // start with "infinite" MSE
+ dist_min = MAX_32;
+
+ p = &table_gain_MR475[0];
+
+ for (i = 0; i < MR475_VQ_SIZE; i++)
+ {
+ // subframe 0 (and 2) calculations
+ g_pitch = *p++;
+ g_code = *p++;
+
+ g_code = mult(g_code, sf0_gcode0);
+ g2_pitch = mult(g_pitch, g_pitch);
+ g2_code = mult(g_code, g_code);
+ g_pit_cod = mult(g_code, g_pitch);
+
+ L_tmp = Mpy_32_16( coeff[0], coeff_lo[0], g2_pitch);
+ L_tmp = Mac_32_16(L_tmp, coeff[1], coeff_lo[1], g_pitch);
+ L_tmp = Mac_32_16(L_tmp, coeff[2], coeff_lo[2], g2_code);
+ L_tmp = Mac_32_16(L_tmp, coeff[3], coeff_lo[3], g_code);
+ L_tmp = Mac_32_16(L_tmp, coeff[4], coeff_lo[4], g_pit_cod);
+
+ tmp = sub (g_pitch, gp_limit);
+
+ // subframe 1 (and 3) calculations
+ g_pitch = *p++;
+ g_code = *p++;
+
+ if (tmp <= 0 && sub(g_pitch, gp_limit) <= 0)
+ {
+ g_code = mult(g_code, sf1_gcode0);
+ g2_pitch = mult(g_pitch, g_pitch);
+ g2_code = mult(g_code, g_code);
+ g_pit_cod = mult(g_code, g_pitch);
+
+ L_tmp = Mac_32_16(L_tmp, coeff[5], coeff_lo[5], g2_pitch);
+ L_tmp = Mac_32_16(L_tmp, coeff[6], coeff_lo[6], g_pitch);
+ L_tmp = Mac_32_16(L_tmp, coeff[7], coeff_lo[7], g2_code);
+ L_tmp = Mac_32_16(L_tmp, coeff[8], coeff_lo[8], g_code);
+ L_tmp = Mac_32_16(L_tmp, coeff[9], coeff_lo[9], g_pit_cod);
+
+ // store table index if MSE for this index is lower
+ than the minimum MSE seen so far
+ if (L_sub(L_tmp, dist_min) < (Word32) 0)
+ {
+ dist_min = L_tmp;
+ index = i;
+ }
+ }
+ }
+
+ *------------------------------------------------------------------*
+ * read quantized gains and update MA predictor memories *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ *------------------------------------------------------------------*
+
+ // for subframe 0, the pre-calculated gcode0/exp_gcode0 are the same
+ // as those calculated from the "real" predictor using quantized gains
+ tmp = shl(index, 2);
+ MR475_quant_store_results(pred_st,
+ &table_gain_MR475[tmp],
+ sf0_gcode0,
+ sf0_exp_gcode0,
+ sf0_gain_pit,
+ sf0_gain_cod);
+
+ // calculate new predicted gain for subframe 1 (this time using
+ // the real, quantized gains)
+ gc_pred(pred_st, MR475, sf1_code_nosharp,
+ &sf1_exp_gcode0, &sf1_frac_gcode0,
+ &sf0_exp_gcode0, &sf0_gcode0); // last two args are dummy
+ sf1_gcode0 = extract_l(Pow2(14, sf1_frac_gcode0));
+
+ tmp = add (tmp, 2);
+ MR475_quant_store_results(pred_st,
+ &table_gain_MR475[tmp],
+ sf1_gcode0,
+ sf1_exp_gcode0,
+ sf1_gain_pit,
+ sf1_gain_cod);
+
+ return index;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 MR475_gain_quant( /* o : index of quantization. */
+ gc_predState *pred_st, /* i/o: gain predictor state struct */
+
+ /* data from subframe 0 (or 2) */
+ Word16 sf0_exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 sf0_frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 sf0_exp_coeff[], /* i : energy coeff. (5), exponent part, Q0 */
+ Word16 sf0_frac_coeff[], /* i : energy coeff. (5), fraction part, Q15 */
+ /* (frac_coeff and exp_coeff computed in */
+ /* calc_filt_energies()) */
+ Word16 sf0_exp_target_en, /* i : exponent of target energy, Q0 */
+ Word16 sf0_frac_target_en, /* i : fraction of target energy, Q15 */
+
+ /* data from subframe 1 (or 3) */
+ Word16 sf1_code_nosharp[], /* i : innovative codebook vector (L_SUBFR) */
+ /* (whithout pitch sharpening) */
+ Word16 sf1_exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 sf1_frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 sf1_exp_coeff[], /* i : energy coeff. (5), exponent part, Q0 */
+ Word16 sf1_frac_coeff[], /* i : energy coeff. (5), fraction part, Q15 */
+ /* (frac_coeff and exp_coeff computed in */
+ /* calc_filt_energies()) */
+ Word16 sf1_exp_target_en, /* i : exponent of target energy, Q0 */
+ Word16 sf1_frac_target_en, /* i : fraction of target energy, Q15 */
+
+ Word16 gp_limit, /* i : pitch gain limit */
+
+ Word16 *sf0_gain_pit, /* o : Pitch gain, Q14 */
+ Word16 *sf0_gain_cod, /* o : Code gain, Q1 */
+
+ Word16 *sf1_gain_pit, /* o : Pitch gain, Q14 */
+ Word16 *sf1_gain_cod, /* o : Code gain, Q1 */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ const Word16 *p;
+ Word16 i;
+ Word16 index = 0;
+ Word16 tmp;
+ Word16 exp;
+ Word16 sf0_gcode0;
+ Word16 sf1_gcode0;
+ Word16 g_pitch;
+ Word16 g2_pitch;
+ Word16 g_code;
+ Word16 g2_code;
+ Word16 g_pit_cod;
+ Word16 coeff[10];
+ Word16 coeff_lo[10];
+ Word16 exp_max[10]; /* 0..4: sf0; 5..9: sf1 */
+ Word32 L_tmp;
+ Word32 dist_min;
+
+ /*-------------------------------------------------------------------*
+ * predicted codebook gain *
+ * ~~~~~~~~~~~~~~~~~~~~~~~ *
+ * gc0 = 2^exp_gcode0 + 2^frac_gcode0 *
+ * *
+ * gcode0 (Q14) = 2^14*2^frac_gcode0 = gc0 * 2^(14-exp_gcode0) *
+ *-------------------------------------------------------------------*/
+
+ sf0_gcode0 = (Word16)(Pow2(14, sf0_frac_gcode0, pOverflow));
+ sf1_gcode0 = (Word16)(Pow2(14, sf1_frac_gcode0, pOverflow));
+
+ /*
+ * For each subframe, the error energy (sum) to be minimized consists
+ * of five terms, t[0..4].
+ *
+ * t[0] = gp^2 * <y1 y1>
+ * t[1] = -2*gp * <xn y1>
+ * t[2] = gc^2 * <y2 y2>
+ * t[3] = -2*gc * <xn y2>
+ * t[4] = 2*gp*gc * <y1 y2>
+ *
+ */
+
+ /* sf 0 */
+ /* determine the scaling exponent for g_code: ec = ec0 - 11 */
+ exp = sf0_exp_gcode0 - 11;
+
+ /* calculate exp_max[i] = s[i]-1 */
+ exp_max[0] = (sf0_exp_coeff[0] - 13);
+ exp_max[1] = (sf0_exp_coeff[1] - 14);
+ exp_max[2] = (sf0_exp_coeff[2] + (15 + (exp << 1)));
+ exp_max[3] = (sf0_exp_coeff[3] + exp);
+ exp_max[4] = (sf0_exp_coeff[4] + (1 + exp));
+
+ /* sf 1 */
+ /* determine the scaling exponent for g_code: ec = ec0 - 11 */
+ exp = sf1_exp_gcode0 - 11;
+
+ /* calculate exp_max[i] = s[i]-1 */
+ exp_max[5] = (sf1_exp_coeff[0] - 13);
+ exp_max[6] = (sf1_exp_coeff[1] - 14);
+ exp_max[7] = (sf1_exp_coeff[2] + (15 + (exp << 1)));
+ exp_max[8] = (sf1_exp_coeff[3] + exp);
+ exp_max[9] = (sf1_exp_coeff[4] + (1 + exp));
+
+ /*-------------------------------------------------------------------*
+ * Gain search equalisation: *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * The MSE for the two subframes is weighted differently if there *
+ * is a big difference in the corresponding target energies *
+ *-------------------------------------------------------------------*/
+
+ /* make the target energy exponents the same by de-normalizing the
+ fraction of the smaller one. This is necessary to be able to compare
+ them
+ */
+ exp = sf0_exp_target_en - sf1_exp_target_en;
+ if (exp > 0)
+ {
+ sf1_frac_target_en >>= exp;
+ }
+ else
+ {
+ sf0_frac_target_en >>= (-exp);
+ }
+
+ /* assume no change of exponents */
+ exp = 0;
+
+ /* test for target energy difference; set exp to +1 or -1 to scale
+ * up/down coefficients for sf 1
+ */
+ tmp = shr_r(sf1_frac_target_en, 1, pOverflow); /* tmp = ceil(0.5*en(sf1)) */
+
+ if (tmp > sf0_frac_target_en) /* tmp > en(sf0)? */
+ {
+ /*
+ * target_energy(sf1) > 2*target_energy(sf0)
+ * -> scale up MSE(sf0) by 2 by adding 1 to exponents 0..4
+ */
+ exp = 1;
+ }
+ else
+ {
+ tmp = ((sf0_frac_target_en + 3) >> 2); /* tmp=ceil(0.25*en(sf0)) */
+
+ if (tmp > sf1_frac_target_en) /* tmp > en(sf1)? */
+ {
+ /*
+ * target_energy(sf1) < 0.25*target_energy(sf0)
+ * -> scale down MSE(sf0) by 0.5 by subtracting 1 from
+ * coefficients 0..4
+ */
+ exp = -1;
+ }
+ }
+
+ for (i = 0; i < 5; i++)
+ {
+ exp_max[i] += exp;
+ }
+
+ /*-------------------------------------------------------------------*
+ * Find maximum exponent: *
+ * ~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * For the sum operation, all terms must have the same scaling; *
+ * that scaling should be low enough to prevent overflow. There- *
+ * fore, the maximum scale is determined and all coefficients are *
+ * re-scaled: *
+ * *
+ * exp = max(exp_max[i]) + 1; *
+ * e = exp_max[i]-exp; e <= 0! *
+ * c[i] = c[i]*2^e *
+ *-------------------------------------------------------------------*/
+
+ exp = exp_max[0];
+ for (i = 9; i > 0; i--)
+ {
+ if (exp_max[i] > exp)
+ {
+ exp = exp_max[i];
+ }
+ }
+ exp++; /* To avoid overflow */
+
+ p = &sf0_frac_coeff[0];
+ for (i = 0; i < 5; i++)
+ {
+ tmp = (exp - exp_max[i]);
+ L_tmp = ((Word32)(*p++) << 16);
+ L_tmp = L_shr(L_tmp, tmp, pOverflow);
+ coeff[i] = (Word16)(L_tmp >> 16);
+ coeff_lo[i] = (Word16)((L_tmp >> 1) - ((L_tmp >> 16) << 15));
+ }
+ p = &sf1_frac_coeff[0];
+ for (; i < 10; i++)
+ {
+ tmp = exp - exp_max[i];
+ L_tmp = ((Word32)(*p++) << 16);
+ L_tmp = L_shr(L_tmp, tmp, pOverflow);
+ coeff[i] = (Word16)(L_tmp >> 16);
+ coeff_lo[i] = (Word16)((L_tmp >> 1) - ((L_tmp >> 16) << 15));
+ }
+
+
+ /*-------------------------------------------------------------------*
+ * Codebook search: *
+ * ~~~~~~~~~~~~~~~~ *
+ * *
+ * For each pair (g_pitch, g_fac) in the table calculate the *
+ * terms t[0..4] and sum them up; the result is the mean squared *
+ * error for the quantized gains from the table. The index for the *
+ * minimum MSE is stored and finally used to retrieve the quantized *
+ * gains *
+ *-------------------------------------------------------------------*/
+
+ /* start with "infinite" MSE */
+ dist_min = MAX_32;
+
+ p = &table_gain_MR475[0];
+
+ for (i = 0; i < MR475_VQ_SIZE; i++)
+ {
+ /* subframe 0 (and 2) calculations */
+ g_pitch = *p++;
+ g_code = *p++;
+
+ /* Need to be there OKA */
+ g_code = (Word16)(((Word32) g_code * sf0_gcode0) >> 15);
+ g2_pitch = (Word16)(((Word32) g_pitch * g_pitch) >> 15);
+ g2_code = (Word16)(((Word32) g_code * g_code) >> 15);
+ g_pit_cod = (Word16)(((Word32) g_code * g_pitch) >> 15);
+
+
+ L_tmp = Mpy_32_16(coeff[0], coeff_lo[0], g2_pitch, pOverflow) +
+ Mpy_32_16(coeff[1], coeff_lo[1], g_pitch, pOverflow) +
+ Mpy_32_16(coeff[2], coeff_lo[2], g2_code, pOverflow) +
+ Mpy_32_16(coeff[3], coeff_lo[3], g_code, pOverflow) +
+ Mpy_32_16(coeff[4], coeff_lo[4], g_pit_cod, pOverflow);
+
+ tmp = (g_pitch - gp_limit);
+
+ /* subframe 1 (and 3) calculations */
+ g_pitch = *p++;
+ g_code = *p++;
+
+ if ((tmp <= 0) && (g_pitch <= gp_limit))
+ {
+ g_code = (Word16)(((Word32) g_code * sf1_gcode0) >> 15);
+ g2_pitch = (Word16)(((Word32) g_pitch * g_pitch) >> 15);
+ g2_code = (Word16)(((Word32) g_code * g_code) >> 15);
+ g_pit_cod = (Word16)(((Word32) g_code * g_pitch) >> 15);
+
+ L_tmp += (Mpy_32_16(coeff[5], coeff_lo[5], g2_pitch, pOverflow) +
+ Mpy_32_16(coeff[6], coeff_lo[6], g_pitch, pOverflow) +
+ Mpy_32_16(coeff[7], coeff_lo[7], g2_code, pOverflow) +
+ Mpy_32_16(coeff[8], coeff_lo[8], g_code, pOverflow) +
+ Mpy_32_16(coeff[9], coeff_lo[9], g_pit_cod, pOverflow));
+
+ /* store table index if MSE for this index is lower
+ than the minimum MSE seen so far */
+ if (L_tmp < dist_min)
+ {
+ dist_min = L_tmp;
+ index = i;
+ }
+ }
+ }
+
+ /*------------------------------------------------------------------*
+ * read quantized gains and update MA predictor memories *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ *------------------------------------------------------------------*/
+
+ /* for subframe 0, the pre-calculated gcode0/exp_gcode0 are the same
+ as those calculated from the "real" predictor using quantized gains */
+ tmp = index << 2;
+ MR475_quant_store_results(pred_st,
+ &table_gain_MR475[tmp],
+ sf0_gcode0,
+ sf0_exp_gcode0,
+ sf0_gain_pit,
+ sf0_gain_cod,
+ pOverflow);
+
+ /* calculate new predicted gain for subframe 1 (this time using
+ the real, quantized gains) */
+ gc_pred(pred_st, MR475, sf1_code_nosharp,
+ &sf1_exp_gcode0, &sf1_frac_gcode0,
+ &sf0_exp_gcode0, &sf0_gcode0, /* dummy args */
+ pOverflow);
+
+ sf1_gcode0 = (Word16)(Pow2(14, sf1_frac_gcode0, pOverflow));
+
+ tmp += 2;
+ MR475_quant_store_results(
+ pred_st,
+ &table_gain_MR475[tmp],
+ sf1_gcode0,
+ sf1_exp_gcode0,
+ sf1_gain_pit,
+ sf1_gain_cod,
+ pOverflow);
+
+ return(index);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: qgain475.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains the defines and function prototypes used in the
+ quantization of pitch and codebook gains for MR475.
+
+------------------------------------------------------------------------------
+*/
+#ifndef _QGAIN475_H_
+#define _QGAIN475_H_
+#define qgain475_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "gc_pred.h"
+#include "mode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+ /* minimum allowed gain code prediction error: 102.887/4096 = 0.0251189 */
+#define MIN_QUA_ENER ( -5443) /* Q10 <-> log2 (0.0251189) */
+#define MIN_QUA_ENER_MR122 (-32768) /* Q10 <-> 20*log10(0.0251189) */
+
+ /* minimum allowed gain code prediction error: 32000/4096 = 7.8125 */
+#define MAX_QUA_ENER ( 3037) /* Q10 <-> log2 (7.8125) */
+#define MAX_QUA_ENER_MR122 ( 18284) /* Q10 <-> 20*log10(7.8125) */
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+
+ /*************************************************************************
+ *
+ * FUNCTION: MR475_update_unq_pred()
+ *
+ * PURPOSE: use optimum codebook gain and update "unquantized"
+ * gain predictor with the (bounded) prediction error
+ *
+ *************************************************************************/
+ void
+ MR475_update_unq_pred(
+ gc_predState *pred_st, /* i/o: gain predictor state struct */
+ Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 cod_gain_exp, /* i : optimum codebook gain (exponent), Q0 */
+ Word16 cod_gain_frac, /* i : optimum codebook gain (fraction), Q15 */
+ Flag *pOverflow /* o : overflow indicator */
+ );
+
+ /*************************************************************************
+ *
+ * FUNCTION: MR475_gain_quant()
+ *
+ * PURPOSE: Quantization of pitch and codebook gains for two subframes
+ * (using predicted codebook gain)
+ *
+ *************************************************************************/
+
+ Word16
+ MR475_gain_quant( /* o : index of quantization. */
+ gc_predState *pred_st, /* i/o: gain predictor state struct */
+
+ /* data from subframe 0 (or 2) */
+ Word16 sf0_exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 sf0_frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 sf0_exp_coeff[], /* i : energy coeff. (5), exponent part, Q0 */
+ Word16 sf0_frac_coeff[], /* i : energy coeff. (5), fraction part, Q15 */
+ /* (frac_coeff and exp_coeff computed in */
+ /* calc_filt_energies()) */
+ Word16 sf0_exp_target_en, /* i : exponent of target energy, Q0 */
+ Word16 sf0_frac_target_en, /* i : fraction of target energy, Q15 */
+
+ /* data from subframe 1 (or 3) */
+ Word16 sf1_code_nosharp[], /* i : innovative codebook vector (L_SUBFR) */
+ /* (whithout pitch sharpening) */
+ Word16 sf1_exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 sf1_frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 sf1_exp_coeff[], /* i : energy coeff. (5), exponent part, Q0 */
+ Word16 sf1_frac_coeff[], /* i : energy coeff. (5), fraction part, Q15 */
+ /* (frac_coeff and exp_coeff computed in */
+ /* calc_filt_energies()) */
+ Word16 sf1_exp_target_en, /* i : exponent of target energy, Q0 */
+ Word16 sf1_frac_target_en, /* i : fraction of target energy, Q15 */
+
+ Word16 gp_limit, /* i : pitch gain limit */
+
+ Word16 *sf0_gain_pit, /* o : Pitch gain, Q14 */
+ Word16 *sf0_gain_cod, /* o : Code gain, Q1 */
+
+ Word16 *sf1_gain_pit, /* o : Pitch gain, Q14 */
+ Word16 *sf1_gain_cod, /* o : Code gain, Q1 */
+ Flag *pOverflow /* o : overflow indicator */
+ );
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _QGAIN475_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: qgain795.cpp
+ Functions: MR795_gain_code_quant3
+ MR795_gain_code_quant_mod
+ MR795_gain_quant
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "qgain795.h"
+#include "typedef.h"
+#include "basic_op.h"
+#include "cnst.h"
+#include "log2.h"
+#include "pow2.h"
+#include "sqrt_l.h"
+#include "g_adapt.h"
+#include "calc_en.h"
+#include "q_gain_p.h"
+
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+#define NB_QUA_CODE 32
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: MR795_gain_code_quant3
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ exp_gcode0 -- Word16 -- predicted CB gain (exponent), Q0
+ gcode0 -- Word16 -- predicted CB gain (norm.)
+ g_pitch_cand[] -- Word16 array -- Pitch gain candidates (3), Q14
+ g_pitch_cind[] -- Word16 array -- Pitch gain cand. indices (3), Q0
+ frac_coeff[] -- Word16 array -- coefficients (5), Q15
+ exp_coeff[] -- Word16 array -- energy coefficients (5), Q0
+ coefficients from calc_filt_ener()
+
+ Outputs:
+ gain_pit -- Pointer to Word16 -- Pitch gain, Q14
+ gain_pit_ind -- Pointer to Word16 -- Pitch gain index, Q0
+ gain_cod -- Pointer to Word16 -- Code gain, Q1
+ gain_cod_ind -- Pointer to Word16 -- Code gain index, Q0
+ qua_ener_MR122 -- Pointer to Word16 -- quantized energy error, Q10
+ (for MR122 MA predictor update)
+
+ qua_ener -- Pointer to Word16 -- quantized energy error, Q10
+ (for other MA predictor update)
+
+ pOverflow -- Pointer to Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Pre-quantization of codebook gains, given three possible
+ LTP gains (using predicted codebook gain)
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ qgain795.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void
+MR795_gain_code_quant3(
+ Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 gcode0, /* i : predicted CB gain (norm.), Q14 */
+ Word16 g_pitch_cand[], /* i : Pitch gain candidates (3), Q14 */
+ Word16 g_pitch_cind[], /* i : Pitch gain cand. indices (3), Q0 */
+ Word16 frac_coeff[], /* i : coefficients (5), Q15 */
+ Word16 exp_coeff[], /* i : energy coefficients (5), Q0 */
+ /* coefficients from calc_filt_ener()*/
+ Word16 *gain_pit, /* o : Pitch gain, Q14 */
+ Word16 *gain_pit_ind, /* o : Pitch gain index, Q0 */
+ Word16 *gain_cod, /* o : Code gain, Q1 */
+ Word16 *gain_cod_ind, /* o : Code gain index, Q0 */
+ Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
+ /* (for MR122 MA predictor update) */
+ Word16 *qua_ener, /* o : quantized energy error, Q10 */
+ /* (for other MA predictor update) */
+ const Word16* qua_gain_code_ptr, /* i : ptr to read-only table */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ const Word16 *p;
+ Word16 i;
+ Word16 j;
+ Word16 cod_ind;
+ Word16 pit_ind;
+ Word16 e_max;
+ Word16 exp_code;
+ Word16 g_pitch;
+ Word16 g2_pitch;
+ Word16 g_code;
+ Word16 g2_code_h;
+ Word16 g2_code_l;
+ Word16 g_pit_cod_h;
+ Word16 g_pit_cod_l;
+ Word16 coeff[5];
+ Word16 coeff_lo[5];
+ Word16 exp_max[5];
+ Word32 L_tmp;
+ Word32 L_tmp0;
+ Word32 dist_min;
+
+ /*
+ * The error energy (sum) to be minimized consists of five terms, t[0..4].
+ *
+ * t[0] = gp^2 * <y1 y1>
+ * t[1] = -2*gp * <xn y1>
+ * t[2] = gc^2 * <y2 y2>
+ * t[3] = -2*gc * <xn y2>
+ * t[4] = 2*gp*gc * <y1 y2>
+ *
+ */
+
+ /* determine the scaling exponent for g_code: ec = ec0 - 10 */
+ exp_code = exp_gcode0 - 10;
+
+ /* calculate exp_max[i] = s[i]-1 */
+ exp_max[0] = exp_coeff[0] - 13;
+ exp_max[1] = exp_coeff[1] - 14;
+ exp_max[2] = exp_coeff[2] + shl(exp_code, 1, pOverflow) + 15;
+ exp_max[3] = exp_coeff[3] + exp_code;
+ exp_max[4] = exp_coeff[4] + (exp_code + 1);
+
+
+ /*-------------------------------------------------------------------*
+ * Find maximum exponent: *
+ * ~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * For the sum operation, all terms must have the same scaling; *
+ * that scaling should be low enough to prevent overflow. There- *
+ * fore, the maximum scale is determined and all coefficients are *
+ * re-scaled: *
+ * *
+ * e_max = max(exp_max[i]) + 1; *
+ * e = exp_max[i]-e_max; e <= 0! *
+ * c[i] = c[i]*2^e *
+ *-------------------------------------------------------------------*/
+
+ e_max = exp_max[0];
+ for (i = 1; i < 5; i++) /* implemented flattened */
+ {
+ if (exp_max[i] > e_max)
+ {
+ e_max = exp_max[i];
+ }
+ }
+
+ e_max = add_16(e_max, 1, pOverflow); /* To avoid overflow */
+
+ for (i = 0; i < 5; i++)
+ {
+ j = e_max - exp_max[i];
+ L_tmp = ((Word32)frac_coeff[i] << 16);
+ L_tmp = L_shr(L_tmp, j, pOverflow);
+ L_Extract(L_tmp, &coeff[i], &coeff_lo[i], pOverflow);
+ }
+
+
+ /*-------------------------------------------------------------------*
+ * Codebook search: *
+ * ~~~~~~~~~~~~~~~~ *
+ * *
+ * For each of the candiates LTP gains in g_pitch_cand[], the terms *
+ * t[0..4] are calculated from the values in the table (and the *
+ * pitch gain candidate) and summed up; the result is the mean *
+ * squared error for the LPT/CB gain pair. The index for the mini- *
+ * mum MSE is stored and finally used to retrieve the quantized CB *
+ * gain *
+ *-------------------------------------------------------------------*/
+
+ /* start with "infinite" MSE */
+ dist_min = MAX_32;
+ cod_ind = 0;
+ pit_ind = 0;
+
+ /* loop through LTP gain candidates */
+ for (j = 0; j < 3; j++)
+ {
+ /* pre-calculate terms only dependent on pitch gain */
+ g_pitch = g_pitch_cand[j];
+ g2_pitch = mult(g_pitch, g_pitch, pOverflow);
+ L_tmp0 = Mpy_32_16(coeff[0], coeff_lo[0], g2_pitch, pOverflow);
+ L_tmp0 = Mac_32_16(L_tmp0, coeff[1], coeff_lo[1], g_pitch, pOverflow);
+
+ p = &qua_gain_code_ptr[0];
+ for (i = 0; i < NB_QUA_CODE; i++)
+ {
+ g_code = *p++; /* this is g_fac Q11 */
+ p++; /* skip log2(g_fac) */
+ p++; /* skip 20*log10(g_fac) */
+
+ g_code = mult(g_code, gcode0, pOverflow);
+
+ L_tmp = L_mult(g_code, g_code, pOverflow);
+ L_Extract(L_tmp, &g2_code_h, &g2_code_l, pOverflow);
+
+ L_tmp = L_mult(g_code, g_pitch, pOverflow);
+ L_Extract(L_tmp, &g_pit_cod_h, &g_pit_cod_l, pOverflow);
+
+ L_tmp = Mac_32(L_tmp0, coeff[2], coeff_lo[2],
+ g2_code_h, g2_code_l, pOverflow);
+ L_tmp = Mac_32_16(L_tmp, coeff[3], coeff_lo[3],
+ g_code, pOverflow);
+ L_tmp = Mac_32(L_tmp, coeff[4], coeff_lo[4],
+ g_pit_cod_h, g_pit_cod_l, pOverflow);
+
+ /* store table index if MSE for this index is lower
+ than the minimum MSE seen so far; also store the
+ pitch gain for this (so far) lowest MSE */
+ if (L_tmp < dist_min)
+ {
+ dist_min = L_tmp;
+ cod_ind = i;
+ pit_ind = j;
+ }
+ }
+ }
+
+ /*------------------------------------------------------------------*
+ * read quantized gains and new values for MA predictor memories *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ *------------------------------------------------------------------*/
+
+ /* Read the quantized gains */
+ p = &qua_gain_code_ptr[(cod_ind<<2) - cod_ind];
+
+ g_code = *p++;
+ *qua_ener_MR122 = *p++;
+ *qua_ener = *p;
+
+ /*------------------------------------------------------------------*
+ * calculate final fixed codebook gain: *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * gc = gc0 * g *
+ *------------------------------------------------------------------*/
+
+ L_tmp = L_mult(g_code, gcode0, pOverflow);
+ L_tmp = L_shr(L_tmp, 9 - exp_gcode0, pOverflow);
+ *gain_cod = (Word16)(L_tmp >> 16);
+ *gain_cod_ind = cod_ind;
+ *gain_pit = g_pitch_cand[pit_ind];
+ *gain_pit_ind = g_pitch_cind[pit_ind];
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: MR795_gain_code_quant_mod
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ gain_pit -- Word16 -- pitch gain, Q14
+ exp_gcode0 -- Word16 -- predicted CB gain (exponent), Q0
+ gcode0 -- Word16 -- predicted CB gain (norm.), Q14
+ frac_en[] -- Word16 array -- energy coefficients (4), fraction part, Q15
+ exp_en[] -- Word16 array -- energy coefficients (4), exponent part, Q0
+ alpha -- Word16 -- gain adaptor factor (>0), Q15
+
+ gain_cod_unq -- Word16 -- Code gain (unquantized)
+ (scaling: Q10 - exp_gcode0)
+
+ gain_cod -- Pointer to Word16 -- Code gain (pre-/quantized), Q1
+
+ Outputs:
+ qua_ener_MR122 -- Pointer to Word16 -- quantized energy error, Q10
+ (for MR122 MA predictor update)
+ qua_ener -- Pointer to Word16 -- quantized energy error, Q10
+ (for other MA predictor update)
+ pOverflow -- Pointer to Flag -- overflow indicator
+
+ Returns:
+ index of quantization (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ PURPOSE: Modified quantization of the MR795 codebook gain
+
+ Uses pre-computed energy coefficients in frac_en[]/exp_en[]
+
+ frac_en[0]*2^exp_en[0] = <res res> // LP residual energy
+ frac_en[1]*2^exp_en[1] = <exc exc> // LTP residual energy
+ frac_en[2]*2^exp_en[2] = <exc code> // LTP/CB innovation dot product
+ frac_en[3]*2^exp_en[3] = <code code> // CB innovation energy
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ qgain795.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16
+MR795_gain_code_quant_mod( /* o : index of quantization. */
+ Word16 gain_pit, /* i : pitch gain, Q14 */
+ Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 gcode0, /* i : predicted CB gain (norm.), Q14 */
+ Word16 frac_en[], /* i : energy coefficients (4),
+ fraction part, Q15 */
+ Word16 exp_en[], /* i : energy coefficients (4),
+ eponent part, Q0 */
+ Word16 alpha, /* i : gain adaptor factor (>0), Q15 */
+ Word16 gain_cod_unq, /* i : Code gain (unquantized) */
+ /* (scaling: Q10 - exp_gcode0) */
+ Word16 *gain_cod, /* i/o: Code gain (pre-/quantized), Q1 */
+ Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
+ /* (for MR122 MA predictor update) */
+ Word16 *qua_ener, /* o : quantized energy error, Q10 */
+ /* (for other MA predictor update) */
+ const Word16* qua_gain_code_ptr, /* i : ptr to read-only ptr */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ const Word16 *p;
+ Word16 i;
+ Word16 index;
+ Word16 tmp;
+ Word16 one_alpha;
+ Word16 exp;
+ Word16 e_max;
+
+ Word16 g2_pitch;
+ Word16 g_code;
+ Word16 g2_code_h;
+ Word16 g2_code_l;
+ Word16 d2_code_h;
+ Word16 d2_code_l;
+ Word16 coeff[5];
+ Word16 coeff_lo[5];
+ Word16 exp_coeff[5];
+ Word32 L_tmp;
+ Word32 L_t0;
+ Word32 L_t1;
+ Word32 dist_min;
+ Word16 gain_code;
+
+ /*
+ Steps in calculation of the error criterion (dist):
+ ---------------------------------------------------
+
+ underlined = constant; alp = FLP value of alpha, alpha = FIP
+ ----------
+
+
+ ExEn = gp^2 * LtpEn + 2.0*gp*gc[i] * XC + gc[i]^2 * InnEn;
+ ------------ ------ -- -----
+
+ aExEn= alp * ExEn
+ = alp*gp^2*LtpEn + 2.0*alp*gp*XC* gc[i] + alp*InnEn* gc[i]^2
+ -------------- ------------- ---------
+
+ = t[1] + t[2] + t[3]
+
+ dist = d1 + d2;
+
+ d1 = (1.0 - alp) * InnEn * (gcu - gc[i])^2 = t[4]
+ ------------------- ---
+
+ d2 = alp * (ResEn - 2.0 * sqrt(ResEn*ExEn) + ExEn);
+ --- ----- --- -----
+
+ = alp * (sqrt(ExEn) - sqrt(ResEn))^2
+ --- -----------
+
+ = (sqrt(aExEn) - sqrt(alp*ResEn))^2
+ ---------------
+
+ = (sqrt(aExEn) - t[0] )^2
+ ----
+
+ */
+
+ /*
+ * calculate scalings of the constant terms
+ */
+ gain_code = shl(*gain_cod, (10 - exp_gcode0), pOverflow); /* Q1 -> Q11 (-ec0) */
+ g2_pitch = mult(gain_pit, gain_pit, pOverflow); /* Q14 -> Q13 */
+ /* 0 < alpha <= 0.5 => 0.5 <= 1-alpha < 1, i.e one_alpha is normalized */
+ one_alpha = add_16((32767 - alpha), 1, pOverflow); /* 32768 - alpha */
+
+
+ /* alpha <= 0.5 -> mult. by 2 to keep precision; compensate in exponent */
+ L_t1 = L_mult(alpha, frac_en[1], pOverflow);
+ L_t1 = L_shl(L_t1, 1, pOverflow);
+ tmp = (Word16)(L_t1 >> 16);
+
+ /* directly store in 32 bit variable because no further mult. required */
+ L_t1 = L_mult(tmp, g2_pitch, pOverflow);
+ exp_coeff[1] = exp_en[1] - 15;
+
+
+ tmp = (Word16)(L_shl(L_mult(alpha, frac_en[2], pOverflow), 1, pOverflow) >> 16);
+ coeff[2] = mult(tmp, gain_pit, pOverflow);
+ exp = exp_gcode0 - 10;
+ exp_coeff[2] = add_16(exp_en[2], exp, pOverflow);
+
+
+ /* alpha <= 0.5 -> mult. by 2 to keep precision; compensate in exponent */
+ coeff[3] = (Word16)(L_shl(L_mult(alpha, frac_en[3], pOverflow), 1, pOverflow) >> 16);
+ exp = shl(exp_gcode0, 1, pOverflow) - 7;
+ exp_coeff[3] = add_16(exp_en[3], exp, pOverflow);
+
+
+ coeff[4] = mult(one_alpha, frac_en[3], pOverflow);
+ exp_coeff[4] = add_16(exp_coeff[3], 1, pOverflow);
+
+
+ L_tmp = L_mult(alpha, frac_en[0], pOverflow);
+ /* sqrt_l returns normalized value and 2*exponent
+ -> result = val >> (exp/2)
+ exp_coeff holds 2*exponent for c[0] */
+ /* directly store in 32 bit variable because no further mult. required */
+ L_t0 = sqrt_l_exp(L_tmp, &exp, pOverflow); /* normalization included in sqrt_l_exp */
+ exp += 47;
+ exp_coeff[0] = exp_en[0] - exp;
+
+ /*
+ * Determine the maximum exponent occuring in the distance calculation
+ * and adjust all fractions accordingly (including a safety margin)
+ *
+ */
+
+ /* find max(e[1..4],e[0]+31) */
+ e_max = exp_coeff[0] + 31;
+ for (i = 1; i <= 4; i++)
+ {
+ if (exp_coeff[i] > e_max)
+ {
+ e_max = exp_coeff[i];
+ }
+ }
+
+ /* scale c[1] (requires no further multiplication) */
+ tmp = e_max - exp_coeff[1];
+ L_t1 = L_shr(L_t1, tmp, pOverflow);
+
+ /* scale c[2..4] (used in Mpy_32_16 in the quantizer loop) */
+ for (i = 2; i <= 4; i++)
+ {
+ tmp = e_max - exp_coeff[i];
+ L_tmp = ((Word32)coeff[i] << 16);
+ L_tmp = L_shr(L_tmp, tmp, pOverflow);
+ L_Extract(L_tmp, &coeff[i], &coeff_lo[i], pOverflow);
+ }
+
+ /* scale c[0] (requires no further multiplication) */
+ exp = e_max - 31; /* new exponent */
+ tmp = exp - exp_coeff[0];
+ L_t0 = L_shr(L_t0, shr(tmp, 1, pOverflow), pOverflow);
+ /* perform correction by 1/sqrt(2) if exponent difference is odd */
+ if ((tmp & 0x1) != 0)
+ {
+ L_Extract(L_t0, &coeff[0], &coeff_lo[0], pOverflow);
+ L_t0 = Mpy_32_16(coeff[0], coeff_lo[0],
+ 23170, pOverflow); /* 23170 Q15 = 1/sqrt(2)*/
+ }
+
+ /* search the quantizer table for the lowest value
+ of the search criterion */
+ dist_min = MAX_32;
+ index = 0;
+ p = &qua_gain_code_ptr[0];
+
+ for (i = 0; i < NB_QUA_CODE; i++)
+ {
+ g_code = *p++; /* this is g_fac (Q11) */
+ p++; /* skip log2(g_fac) */
+ p++; /* skip 20*log10(g_fac) */
+ g_code = mult(g_code, gcode0, pOverflow);
+
+ /* only continue if gc[i] < 2.0*gc
+ which is equiv. to g_code (Q10-ec0) < gain_code (Q11-ec0) */
+
+ if (g_code >= gain_code)
+ {
+ break;
+ }
+
+ L_tmp = L_mult(g_code, g_code, pOverflow);
+ L_Extract(L_tmp, &g2_code_h, &g2_code_l, pOverflow);
+
+ tmp = sub(g_code, gain_cod_unq, pOverflow);
+ L_tmp = L_mult(tmp, tmp, pOverflow);
+ L_Extract(L_tmp, &d2_code_h, &d2_code_l, pOverflow);
+
+ /* t2, t3, t4 */
+ L_tmp = Mac_32_16(L_t1, coeff[2], coeff_lo[2], g_code, pOverflow);
+ L_tmp = Mac_32(L_tmp, coeff[3], coeff_lo[3], g2_code_h, g2_code_l, pOverflow);
+
+ L_tmp = sqrt_l_exp(L_tmp, &exp, pOverflow);
+ L_tmp = L_shr(L_tmp, shr(exp, 1, pOverflow), pOverflow);
+
+ /* d2 */
+ tmp = pv_round(L_sub(L_tmp, L_t0, pOverflow), pOverflow);
+ L_tmp = L_mult(tmp, tmp, pOverflow);
+
+ /* dist */
+ L_tmp = Mac_32(L_tmp, coeff[4], coeff_lo[4], d2_code_h, d2_code_l, pOverflow);
+
+ /* store table index if distance measure for this
+ index is lower than the minimum seen so far */
+ if (L_tmp < dist_min)
+ {
+ dist_min = L_tmp;
+ index = i;
+ }
+ }
+
+ /*------------------------------------------------------------------*
+ * read quantized gains and new values for MA predictor memories *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ *------------------------------------------------------------------*/
+
+ /* Read the quantized gains */
+ p = &qua_gain_code_ptr[(index<<2) - index];
+ g_code = *p++;
+ *qua_ener_MR122 = *p++;
+ *qua_ener = *p;
+
+ /*------------------------------------------------------------------*
+ * calculate final fixed codebook gain: *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * gc = gc0 * g *
+ *------------------------------------------------------------------*/
+
+ L_tmp = L_mult(g_code, gcode0, pOverflow);
+ L_tmp = L_shr(L_tmp, 9 - exp_gcode0, pOverflow);
+ *gain_cod = (Word16)(L_tmp >> 16);
+
+ return index;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: MR795_gain_quant
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+MR795_gain_quant(
+
+
+ Inputs:
+ adapt_st -- Pointer to GainAdaptState -- gain adapter state structure
+ res -- Word16 array -- LP residual, Q0
+ exc -- Word16 array -- LTP excitation (unfiltered), Q0
+ code -- Word16 array -- CB innovation (unfiltered), Q13
+ frac_coeff -- Word16 array -- coefficients (5), Q15
+ exp_coeff -- Word16 array -- energy coefficients (5), Q0
+ coefficients from calc_filt_ener()
+ exp_code_en -- Word16 -- innovation energy (exponent), Q0
+ frac_code_en -- Word16 -- innovation energy (fraction), Q15
+ exp_gcode0 -- Word16 -- predicted CB gain (exponent), Q0
+ frac_gcode0 -- Word16 -- predicted CB gain (fraction), Q15
+ L_subfr -- Word16 -- Subframe length
+ cod_gain_frac -- Word16 -- opt. codebook gain (fraction),Q15
+ cod_gain_exp -- Word16 -- opt. codebook gain (exponent), Q0
+ gp_limit -- Word16 -- pitch gain limit
+ gain_pit -- Pointer to Word16 -- Pitch gain, Q14
+
+ Output
+ adapt_st -- Pointer to GainAdaptState -- gain adapter state structure
+ gain_pit -- Pointer to Word16 -- Pitch gain, Q14
+
+ gain_pit -- Pointer to Word16 -- Pitch gain, Q14
+ gain_cod -- Pointer to Word16 -- Code gain, Q1
+ qua_ener_MR122 -- Pointer to Word16 -- quantized energy error, Q10
+ (for MR122 MA predictor update)
+
+ qua_ener -- Pointer to Word16 -- quantized energy error, Q10
+ (for other MA predictor update)
+
+ anap -- Double Pointer to Word16 -- Index of quantization
+ (first gain pitch, then code pitch)
+
+ pOverflow -- Pointer to Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ pitch and codebook quantization for MR795
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ qgain795.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void
+MR795_gain_quant(
+ GainAdaptState *adapt_st, /* i/o: gain adapter state structure */
+ Word16 res[], /* i : LP residual, Q0 */
+ Word16 exc[], /* i : LTP excitation (unfiltered), Q0 */
+ Word16 code[], /* i : CB innovation (unfiltered), Q13 */
+ Word16 frac_coeff[], /* i : coefficients (5), Q15 */
+ Word16 exp_coeff[], /* i : energy coefficients (5), Q0 */
+ /* coefficients from calc_filt_ener() */
+ Word16 exp_code_en, /* i : innovation energy (exponent), Q0 */
+ Word16 frac_code_en, /* i : innovation energy (fraction), Q15 */
+ Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 L_subfr, /* i : Subframe length */
+ Word16 cod_gain_frac, /* i : opt. codebook gain (fraction),Q15 */
+ Word16 cod_gain_exp, /* i : opt. codebook gain (exponent), Q0 */
+ Word16 gp_limit, /* i : pitch gain limit */
+ Word16 *gain_pit, /* i/o: Pitch gain, Q14 */
+ Word16 *gain_cod, /* o : Code gain, Q1 */
+ Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
+ /* (for MR122 MA predictor update) */
+ Word16 *qua_ener, /* o : quantized energy error, Q10 */
+ /* (for other MA predictor update) */
+ Word16 **anap, /* o : Index of quantization */
+ /* (first gain pitch, then code pitch)*/
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of table ptrs */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ Word16 frac_en[4];
+ Word16 exp_en[4];
+ Word16 ltpg, alpha, gcode0;
+ Word16 g_pitch_cand[3]; /* pitch gain candidates Q14 */
+ Word16 g_pitch_cind[3]; /* pitch gain indices Q0 */
+ Word16 gain_pit_index;
+ Word16 gain_cod_index;
+ Word16 exp;
+ Word16 gain_cod_unq; /* code gain (unq.) Q(10-exp_gcode0) */
+
+
+ /* get list of candidate quantized pitch gain values
+ * and corresponding quantization indices
+ */
+ gain_pit_index = q_gain_pitch(MR795, gp_limit, gain_pit,
+ g_pitch_cand, g_pitch_cind, common_amr_tbls->qua_gain_pitch_ptr, pOverflow);
+
+ /*-------------------------------------------------------------------*
+ * predicted codebook gain *
+ * ~~~~~~~~~~~~~~~~~~~~~~~ *
+ * gc0 = 2^exp_gcode0 + 2^frac_gcode0 *
+ * *
+ * gcode0 (Q14) = 2^14*2^frac_gcode0 = gc0 * 2^(14-exp_gcode0) *
+ *-------------------------------------------------------------------*/
+ gcode0 = (Word16)(Pow2(14, frac_gcode0, pOverflow)); /* Q14 */
+
+ /* pre-quantization of codebook gain
+ * (using three pitch gain candidates);
+ * result: best guess of pitch gain and code gain
+ */
+ MR795_gain_code_quant3(
+ exp_gcode0, gcode0, g_pitch_cand, g_pitch_cind,
+ frac_coeff, exp_coeff,
+ gain_pit, &gain_pit_index, gain_cod, &gain_cod_index,
+ qua_ener_MR122, qua_ener, common_amr_tbls->qua_gain_code_ptr, pOverflow);
+
+ /* calculation of energy coefficients and LTP coding gain */
+ calc_unfilt_energies(res, exc, code, *gain_pit, L_subfr,
+ frac_en, exp_en, <pg, pOverflow);
+
+ /* run gain adaptor, calculate alpha factor to balance LTP/CB gain
+ * (this includes the gain adaptor update)
+ * Note: ltpg = 0 if frac_en[0] == 0, so the update is OK in that case
+ */
+ gain_adapt(adapt_st, ltpg, *gain_cod, &alpha, pOverflow);
+
+ /* if this is a very low energy signal (threshold: see
+ * calc_unfilt_energies) or alpha <= 0 then don't run the modified quantizer
+ */
+ if (frac_en[0] != 0 && alpha > 0)
+ {
+ /* innovation energy <cod cod> was already computed in gc_pred() */
+ /* (this overwrites the LtpResEn which is no longer needed) */
+ frac_en[3] = frac_code_en;
+ exp_en[3] = exp_code_en;
+
+ /* store optimum codebook gain in Q(10-exp_gcode0) */
+ exp = sub(cod_gain_exp, exp_gcode0, pOverflow) + 10;
+ gain_cod_unq = shl(cod_gain_frac, exp, pOverflow);
+
+ /* run quantization with modified criterion */
+ gain_cod_index = MR795_gain_code_quant_mod(
+ *gain_pit, exp_gcode0, gcode0,
+ frac_en, exp_en, alpha, gain_cod_unq,
+ gain_cod, qua_ener_MR122, qua_ener, common_amr_tbls->qua_gain_code_ptr,
+ pOverflow); /* function result */
+ }
+
+ *(*anap)++ = gain_pit_index;
+ *(*anap)++ = gain_cod_index;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: qgain795.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, qgain795.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef qgain795_h
+#define qgain795_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "g_adapt.h"
+#include "get_const_tbls.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void
+ MR795_gain_quant(
+ GainAdaptState *adapt_st, /* i/o: gain adapter state structure */
+ Word16 res[], /* i : LP residual, Q0 */
+ Word16 exc[], /* i : LTP excitation (unfiltered), Q0 */
+ Word16 code[], /* i : CB innovation (unfiltered), Q13 */
+ Word16 frac_coeff[], /* i : coefficients (5), Q15 */
+ Word16 exp_coeff[], /* i : energy coefficients (5), Q0 */
+ /* coefficients from calc_filt_ener() */
+ Word16 exp_code_en, /* i : innovation energy (exponent), Q0 */
+ Word16 frac_code_en, /* i : innovation energy (fraction), Q15 */
+ Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 L_subfr, /* i : Subframe length */
+ Word16 cod_gain_frac, /* i : opt. codebook gain (fraction),Q15 */
+ Word16 cod_gain_exp, /* i : opt. codebook gain (exponent), Q0 */
+ Word16 gp_limit, /* i : pitch gain limit */
+ Word16 *gain_pit, /* i/o: Pitch gain (unquant/quant), Q14 */
+ Word16 *gain_cod, /* o : Code gain, Q1 */
+ Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
+ /* (for MR122 MA predictor update) */
+ Word16 *qua_ener, /* o : quantized energy error, Q10 */
+ /* (for other MA predictor update) */
+ Word16 **anap, /* o : Index of quantization */
+ /* (first gain pitch, then code pitch)*/
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of table ptrs */
+ Flag *pOverflow /* o : overflow indicator */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* qgain795_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: qua_gain.cpp
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Quantization of pitch and codebook gains.
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "qua_gain.h"
+#include "typedef.h"
+#include "basic_op.h"
+
+#include "mode.h"
+#include "cnst.h"
+#include "pow2.h"
+#include "gc_pred.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here. Include conditional
+ ; compile variables also.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; LOCAL VARIABLE DEFINITIONS
+ ; Variable declaration - defined here and used outside this module
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+ Inputs:
+ mode -- enum Mode -- AMR mode
+ Word16 exp_gcode0 -- Word16 -- predicted CB gain (exponent), Q0
+ Word16 frac_gcode0 -- Word16 -- predicted CB gain (fraction), Q15
+ Word16 frac_coeff -- Word16 Array -- energy coeff. (5), fraction part, Q15
+ Word16 exp_coeff -- Word16 Array -- energy coeff. (5), exponent part, Q0
+ (frac_coeff and exp_coeff computed in
+ calc_filt_energies())
+
+ Word16 gp_limit -- Word16 -- pitch gain limit
+
+ Outputs:
+ Word16 *gain_pit -- Pointer to Word16 -- Pitch gain, Q14
+ Word16 *gain_cod -- Pointer to Word16 -- Code gain, Q1
+ Word16 *qua_ener_MR122 -- Pointer to Word16 -- quantized energy error, Q10
+ (for MR122 MA predictor update)
+ Word16 *qua_ener -- Pointer to Word16 -- quantized energy error, Q10
+ (for other MA predictor update)
+ Flag *pOverflow -- Pointer to Flag -- overflow indicator
+
+ Returns:
+ Word16 -- index of quantization.
+
+ Global Variables Used:
+
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Quantization of pitch and codebook gains.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ qua_gain.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+
+Word16
+Qua_gain( /* o : index of quantization. */
+ enum Mode mode, /* i : AMR mode */
+ Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */
+ Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */
+ Word16 frac_coeff[], /* i : energy coeff. (5), fraction part, Q15 */
+ Word16 exp_coeff[], /* i : energy coeff. (5), exponent part, Q0 */
+ /* (frac_coeff and exp_coeff computed in */
+ /* calc_filt_energies()) */
+ Word16 gp_limit, /* i : pitch gain limit */
+ Word16 *gain_pit, /* o : Pitch gain, Q14 */
+ Word16 *gain_cod, /* o : Code gain, Q1 */
+ Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */
+ /* (for MR122 MA predictor update) */
+ Word16 *qua_ener, /* o : quantized energy error, Q10 */
+ /* (for other MA predictor update) */
+ CommonAmrTbls* common_amr_tbls, /* i : ptr to struct of tables ptrs */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ const Word16 *p;
+ Word16 i;
+ Word16 j;
+ Word16 index = 0;
+ Word16 gcode0;
+ Word16 e_max;
+ Word16 temp;
+ Word16 exp_code;
+ Word16 g_pitch;
+ Word16 g2_pitch;
+ Word16 g_code;
+ Word16 g2_code;
+ Word16 g_pit_cod;
+ Word16 coeff[5];
+ Word16 coeff_lo[5];
+ Word16 exp_max[5];
+ Word32 L_tmp;
+ Word32 L_tmp2;
+ Word32 dist_min;
+ const Word16 *table_gain;
+ Word16 table_len;
+
+ if (mode == MR102 || mode == MR74 || mode == MR67)
+ {
+ table_len = VQ_SIZE_HIGHRATES;
+ table_gain = common_amr_tbls->table_gain_highrates_ptr;
+ }
+ else
+ {
+ table_len = VQ_SIZE_LOWRATES;
+ table_gain = common_amr_tbls->table_gain_lowrates_ptr;
+ }
+
+ /*-------------------------------------------------------------------*
+ * predicted codebook gain *
+ * ~~~~~~~~~~~~~~~~~~~~~~~ *
+ * gc0 = 2^exp_gcode0 + 2^frac_gcode0 *
+ * *
+ * gcode0 (Q14) = 2^14*2^frac_gcode0 = gc0 * 2^(14-exp_gcode0) *
+ *-------------------------------------------------------------------*/
+
+ gcode0 = (Word16)(Pow2(14, frac_gcode0, pOverflow));
+
+ /*-------------------------------------------------------------------*
+ * Scaling considerations: *
+ * ~~~~~~~~~~~~~~~~~~~~~~~ *
+ *-------------------------------------------------------------------*/
+
+ /*
+ * The error energy (sum) to be minimized consists of five terms, t[0..4].
+ *
+ * t[0] = gp^2 * <y1 y1>
+ * t[1] = -2*gp * <xn y1>
+ * t[2] = gc^2 * <y2 y2>
+ * t[3] = -2*gc * <xn y2>
+ * t[4] = 2*gp*gc * <y1 y2>
+ *
+ */
+
+ /* determine the scaling exponent for g_code: ec = ec0 - 11 */
+ exp_code = exp_gcode0 - 11;
+
+ /* calculate exp_max[i] = s[i]-1 */
+ exp_max[0] = exp_coeff[0] - 13;
+ exp_max[1] = exp_coeff[1] - 14;
+
+ temp = shl(exp_code, 1, pOverflow);
+ temp += 15;
+ exp_max[2] = add_16(exp_coeff[2], temp, pOverflow);
+
+ exp_max[3] = add_16(exp_coeff[3], exp_code, pOverflow);
+
+ temp = exp_code + 1;
+ exp_max[4] = add_16(exp_coeff[4], temp, pOverflow);
+
+
+ /*-------------------------------------------------------------------*
+ * Find maximum exponent: *
+ * ~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * For the sum operation, all terms must have the same scaling; *
+ * that scaling should be low enough to prevent overflow. There- *
+ * fore, the maximum scale is determined and all coefficients are *
+ * re-scaled: *
+ * *
+ * e_max = max(exp_max[i]) + 1; *
+ * e = exp_max[i]-e_max; e <= 0! *
+ * c[i] = c[i]*2^e *
+ *-------------------------------------------------------------------*/
+
+ e_max = exp_max[0];
+ for (i = 1; i < 5; i++)
+ {
+ if (exp_max[i] > e_max)
+ {
+ e_max = exp_max[i];
+ }
+ }
+
+ e_max++;
+
+ for (i = 0; i < 5; i++)
+ {
+ j = e_max - exp_max[i];
+ L_tmp = ((Word32)frac_coeff[i] << 16);
+ L_tmp = L_shr(L_tmp, j, pOverflow);
+ L_Extract(L_tmp, &coeff[i], &coeff_lo[i], pOverflow);
+ }
+
+
+ /*-------------------------------------------------------------------*
+ * Codebook search: *
+ * ~~~~~~~~~~~~~~~~ *
+ * *
+ * For each pair (g_pitch, g_fac) in the table calculate the *
+ * terms t[0..4] and sum them up; the result is the mean squared *
+ * error for the quantized gains from the table. The index for the *
+ * minimum MSE is stored and finally used to retrieve the quantized *
+ * gains *
+ *-------------------------------------------------------------------*/
+
+ /* start with "infinite" MSE */
+ dist_min = MAX_32;
+
+ p = &table_gain[0];
+
+ for (i = 0; i < table_len; i++)
+ {
+ g_pitch = *p++;
+ g_code = *p++; /* this is g_fac */
+ p++; /* skip log2(g_fac) */
+ p++; /* skip 20*log10(g_fac) */
+
+ if (g_pitch <= gp_limit)
+ {
+ g_code = mult(g_code, gcode0, pOverflow);
+ g2_pitch = mult(g_pitch, g_pitch, pOverflow);
+ g2_code = mult(g_code, g_code, pOverflow);
+ g_pit_cod = mult(g_code, g_pitch, pOverflow);
+
+ L_tmp = Mpy_32_16(coeff[0], coeff_lo[0], g2_pitch, pOverflow);
+ L_tmp2 = Mpy_32_16(coeff[1], coeff_lo[1], g_pitch, pOverflow);
+ L_tmp = L_add(L_tmp, L_tmp2, pOverflow);
+
+ L_tmp2 = Mpy_32_16(coeff[2], coeff_lo[2], g2_code, pOverflow);
+ L_tmp = L_add(L_tmp, L_tmp2, pOverflow);
+
+ L_tmp2 = Mpy_32_16(coeff[3], coeff_lo[3], g_code, pOverflow);
+ L_tmp = L_add(L_tmp, L_tmp2, pOverflow);
+
+ L_tmp2 = Mpy_32_16(coeff[4], coeff_lo[4], g_pit_cod, pOverflow);
+ L_tmp = L_add(L_tmp, L_tmp2, pOverflow);
+
+ /* store table index if MSE for this index is lower
+ than the minimum MSE seen so far */
+ if (L_tmp < dist_min)
+ {
+ dist_min = L_tmp;
+ index = i;
+ }
+ }
+ }
+
+ /*------------------------------------------------------------------*
+ * read quantized gains and new values for MA predictor memories *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ *------------------------------------------------------------------*/
+
+ /* Read the quantized gains */
+ p = &table_gain[shl(index, 2, pOverflow)];
+ *gain_pit = *p++;
+ g_code = *p++;
+ *qua_ener_MR122 = *p++;
+ *qua_ener = *p;
+
+ /*------------------------------------------------------------------*
+ * calculate final fixed codebook gain: *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
+ * *
+ * gc = gc0 * g *
+ *------------------------------------------------------------------*/
+
+ L_tmp = L_mult(g_code, gcode0, pOverflow);
+ temp = 10 - exp_gcode0;
+ L_tmp = L_shr(L_tmp, temp, pOverflow);
+
+ *gain_cod = (Word16)(L_tmp >> 16);
+
+ return index;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: s10_8pf.cpp
+ Funtions: search_10and8i40
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "s10_8pf.h"
+#include "cnst.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: search_10and8i40
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ nbPulse = nbPulses to find (Word16)
+ step = step size (Word16)
+ nbTracks = nbTracks (Word16)
+ dn[] = correlation between target and h[] (Word16)
+ rr[][] = matrix of autocorrelation (Word16)
+ ipos[] = starting position of each pulse (Word16)
+ pos_max[] = Position of maximum dn[] (Word16)
+ codvec[] = Algebraic codebook vector (Word16)
+ pOverflow = pointer to Overflow flag (Flag)
+
+ Outputs:
+ codvec[] = Algebraic codebook vector (Word16)
+ pOverflow -> 1 if processing this funvction results in satuaration
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function searches for the best codevector; It determines the positions
+ of the 10/8 pulses in the 40-sample frame.
+
+ search_10and8i40 (10,5,5,dn, rr, ipos, pos_max, codvec); for GSMEFR
+ search_10and8i40 (8, 4,4,dn, rr, ipos, pos_max, codvec); for 10.2
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ s10_8pf.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void search_10and8i40 (
+ Word16 nbPulse, // i : nbpulses to find
+ Word16 step, // i : stepsize
+ Word16 nbTracks, // i : nbTracks
+ Word16 dn[], // i : correlation between target and h[]
+ Word16 rr[][L_CODE], // i : matrix of autocorrelation
+ Word16 ipos[], // i : starting position for each pulse
+ Word16 pos_max[], // i : position of maximum of dn[]
+ Word16 codvec[] // o : algebraic codebook vector
+)
+{
+ Word16 i0, i1, i2, i3, i4, i5, i6, i7, i8, i9;
+ Word16 i, j, k, pos, ia, ib;
+ Word16 psk, ps, ps0, ps1, ps2, sq, sq2;
+ Word16 alpk, alp, alp_16;
+ Word16 rrv[L_CODE];
+ Word32 s, alp0, alp1, alp2;
+ Word16 gsmefrFlag;
+
+
+ if (sub(nbPulse, 10) == 0)
+ {
+ gsmefrFlag=1;
+ }
+ else
+ {
+ gsmefrFlag=0;
+ }
+
+ // fix i0 on maximum of correlation position
+ i0 = pos_max[ipos[0]];
+
+ //
+ // i1 loop: *
+ //
+
+ // Default value
+
+ psk = -1;
+ alpk = 1;
+ for (i = 0; i < nbPulse; i++)
+ {
+ codvec[i] = i;
+ }
+
+ for (i = 1; i < nbTracks; i++)
+ {
+ i1 = pos_max[ipos[1]];
+ ps0 = add (dn[i0], dn[i1]);
+ alp0 = L_mult (rr[i0][i0], _1_16);
+ alp0 = L_mac (alp0, rr[i1][i1], _1_16);
+ alp0 = L_mac (alp0, rr[i0][i1], _1_8);
+
+ //
+ // i2 and i3 loop
+ //
+
+ for (i3 = ipos[3]; i3 < L_CODE; i3 += step)
+ {
+ s = L_mult (rr[i3][i3], _1_8); // index incr= step+L_CODE
+ s = L_mac (s, rr[i0][i3], _1_4); // index increment = step
+ s = L_mac (s, rr[i1][i3], _1_4); // index increment = step
+ rrv[i3] = pv_round (s);
+ }
+
+ // Default value
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ia = ipos[2];
+ ib = ipos[3];
+
+ for (i2 = ipos[2]; i2 < L_CODE; i2 += step)
+ {
+ // index increment = step
+ ps1 = add (ps0, dn[i2]);
+
+ // index incr= step+L_CODE
+ alp1 = L_mac (alp0, rr[i2][i2], _1_16);
+
+ // index increment = step
+ alp1 = L_mac (alp1, rr[i0][i2], _1_8);
+
+ // index increment = step
+ alp1 = L_mac (alp1, rr[i1][i2], _1_8);
+
+ for (i3 = ipos[3]; i3 < L_CODE; i3 += step)
+ {
+ // index increment = step
+ ps2 = add (ps1, dn[i3]);
+
+ // index increment = step
+ alp2 = L_mac (alp1, rrv[i3], _1_2);
+
+ // index increment = step
+ alp2 = L_mac (alp2, rr[i2][i3], _1_8);
+
+ sq2 = mult (ps2, ps2);
+
+ alp_16 = pv_round (alp2);
+
+ s = L_msu (L_mult (alp, sq2), sq, alp_16);
+
+ if (s > 0)
+ {
+ sq = sq2;
+ ps = ps2;
+ alp = alp_16;
+ ia = i2;
+ ib = i3;
+ }
+ }
+ }
+ i2 = ia;
+ i3 = ib;
+
+ //
+ // i4 and i5 loop:
+ //
+
+ ps0 = ps;
+ alp0 = L_mult (alp, _1_2);
+
+ for (i5 = ipos[5]; i5 < L_CODE; i5 += step)
+ {
+ s = L_mult (rr[i5][i5], _1_8);
+ s = L_mac (s, rr[i0][i5], _1_4);
+ s = L_mac (s, rr[i1][i5], _1_4);
+ s = L_mac (s, rr[i2][i5], _1_4);
+ s = L_mac (s, rr[i3][i5], _1_4);
+ rrv[i5] = pv_round (s);
+ }
+
+ // Default value
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ia = ipos[4];
+ ib = ipos[5];
+
+ for (i4 = ipos[4]; i4 < L_CODE; i4 += step)
+ {
+ ps1 = add (ps0, dn[i4]);
+
+ alp1 = L_mac (alp0, rr[i4][i4], _1_32);
+ alp1 = L_mac (alp1, rr[i0][i4], _1_16);
+ alp1 = L_mac (alp1, rr[i1][i4], _1_16);
+ alp1 = L_mac (alp1, rr[i2][i4], _1_16);
+ alp1 = L_mac (alp1, rr[i3][i4], _1_16);
+
+ for (i5 = ipos[5]; i5 < L_CODE; i5 += step)
+ {
+ ps2 = add (ps1, dn[i5]);
+
+ alp2 = L_mac (alp1, rrv[i5], _1_4);
+ alp2 = L_mac (alp2, rr[i4][i5], _1_16);
+
+ sq2 = mult (ps2, ps2);
+
+ alp_16 = pv_round (alp2);
+
+ s = L_msu (L_mult (alp, sq2), sq, alp_16);
+
+ if (s > 0)
+ {
+ sq = sq2;
+ ps = ps2;
+ alp = alp_16;
+ ia = i4;
+ ib = i5;
+ }
+ }
+ }
+ i4 = ia;
+ i5 = ib;
+
+ //
+ // i6 and i7 loop:
+ //
+
+ ps0 = ps;
+ alp0 = L_mult (alp, _1_2);
+
+ for (i7 = ipos[7]; i7 < L_CODE; i7 += step)
+ {
+ s = L_mult (rr[i7][i7], _1_16);
+ s = L_mac (s, rr[i0][i7], _1_8);
+ s = L_mac (s, rr[i1][i7], _1_8);
+ s = L_mac (s, rr[i2][i7], _1_8);
+ s = L_mac (s, rr[i3][i7], _1_8);
+ s = L_mac (s, rr[i4][i7], _1_8);
+ s = L_mac (s, rr[i5][i7], _1_8);
+ rrv[i7] = pv_round (s);
+ }
+
+ // Default value
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ia = ipos[6];
+ ib = ipos[7];
+
+ for (i6 = ipos[6]; i6 < L_CODE; i6 += step)
+ {
+ ps1 = add (ps0, dn[i6]);
+
+ alp1 = L_mac (alp0, rr[i6][i6], _1_64);
+ alp1 = L_mac (alp1, rr[i0][i6], _1_32);
+ alp1 = L_mac (alp1, rr[i1][i6], _1_32);
+ alp1 = L_mac (alp1, rr[i2][i6], _1_32);
+ alp1 = L_mac (alp1, rr[i3][i6], _1_32);
+ alp1 = L_mac (alp1, rr[i4][i6], _1_32);
+ alp1 = L_mac (alp1, rr[i5][i6], _1_32);
+
+ for (i7 = ipos[7]; i7 < L_CODE; i7 += step)
+ {
+ ps2 = add (ps1, dn[i7]);
+
+ alp2 = L_mac (alp1, rrv[i7], _1_4);
+ alp2 = L_mac (alp2, rr[i6][i7], _1_32);
+
+ sq2 = mult (ps2, ps2);
+
+ alp_16 = pv_round (alp2);
+
+ s = L_msu (L_mult (alp, sq2), sq, alp_16);
+
+ if (s > 0)
+ {
+ sq = sq2;
+ ps = ps2;
+ alp = alp_16;
+ ia = i6;
+ ib = i7;
+ }
+ }
+ }
+ i6 = ia;
+ i7 = ib;
+
+ // now finished searching a set of 8 pulses
+
+ if(gsmefrFlag != 0){
+ // go on with the two last pulses for GSMEFR
+ //
+ // i8 and i9 loop:
+ //
+
+ ps0 = ps;
+ alp0 = L_mult (alp, _1_2);
+
+ for (i9 = ipos[9]; i9 < L_CODE; i9 += step)
+ {
+ s = L_mult (rr[i9][i9], _1_16);
+ s = L_mac (s, rr[i0][i9], _1_8);
+ s = L_mac (s, rr[i1][i9], _1_8);
+ s = L_mac (s, rr[i2][i9], _1_8);
+ s = L_mac (s, rr[i3][i9], _1_8);
+ s = L_mac (s, rr[i4][i9], _1_8);
+ s = L_mac (s, rr[i5][i9], _1_8);
+ s = L_mac (s, rr[i6][i9], _1_8);
+ s = L_mac (s, rr[i7][i9], _1_8);
+ rrv[i9] = pv_round (s);
+ }
+
+ // Default value
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ia = ipos[8];
+ ib = ipos[9];
+
+ for (i8 = ipos[8]; i8 < L_CODE; i8 += step)
+ {
+ ps1 = add (ps0, dn[i8]);
+
+ alp1 = L_mac (alp0, rr[i8][i8], _1_128);
+ alp1 = L_mac (alp1, rr[i0][i8], _1_64);
+ alp1 = L_mac (alp1, rr[i1][i8], _1_64);
+ alp1 = L_mac (alp1, rr[i2][i8], _1_64);
+ alp1 = L_mac (alp1, rr[i3][i8], _1_64);
+ alp1 = L_mac (alp1, rr[i4][i8], _1_64);
+ alp1 = L_mac (alp1, rr[i5][i8], _1_64);
+ alp1 = L_mac (alp1, rr[i6][i8], _1_64);
+ alp1 = L_mac (alp1, rr[i7][i8], _1_64);
+
+ for (i9 = ipos[9]; i9 < L_CODE; i9 += step)
+ {
+ ps2 = add (ps1, dn[i9]);
+
+ alp2 = L_mac (alp1, rrv[i9], _1_8);
+ alp2 = L_mac (alp2, rr[i8][i9], _1_64);
+
+ sq2 = mult (ps2, ps2);
+
+ alp_16 = pv_round (alp2);
+
+ s = L_msu (L_mult (alp, sq2), sq, alp_16);
+
+ if (s > 0)
+ {
+ sq = sq2;
+ ps = ps2;
+ alp = alp_16;
+ ia = i8;
+ ib = i9;
+ }
+ }
+ }
+ } // end gsmefrFlag
+
+ //
+ // test and memorise if this combination is better than the last one/
+ //
+
+ s = L_msu (L_mult (alpk, sq), psk, alp);
+
+ if (s > 0)
+ {
+ psk = sq;
+ alpk = alp;
+ codvec[0] = i0;
+ codvec[1] = i1;
+ codvec[2] = i2;
+ codvec[3] = i3;
+ codvec[4] = i4;
+ codvec[5] = i5;
+ codvec[6] = i6;
+ codvec[7] = i7;
+
+ if (gsmefrFlag != 0)
+ {
+ codvec[8] = ia;
+ codvec[9] = ib;
+ }
+ }
+
+ //
+ // Cyclic permutation of i1,i2,i3,i4,i5,i6,i7,(i8 and i9)/
+ //
+
+ pos = ipos[1];
+ for (j = 1, k = 2; k < nbPulse; j++, k++)
+ {
+ ipos[j] = ipos[k];
+ }
+ ipos[sub(nbPulse,1)] = pos;
+ } // end 1..nbTracks loop
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void search_10and8i40(
+ Word16 nbPulse, /* i : nbpulses to find */
+ Word16 step, /* i : stepsize */
+ Word16 nbTracks, /* i : nbTracks */
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 rr[][L_CODE], /* i : matrix of autocorrelation */
+ Word16 ipos[], /* i : starting position for each pulse */
+ Word16 pos_max[], /* i : position of maximum of dn[] */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag *pOverflow /* i/o : overflow flag */
+)
+{
+ Word16 i0, i1, i2, i3, i4, i5, i6, i7, i9;
+ Word16 i, j, k/*, m*/;
+ Word16 pos, ia, ib;
+ Word16 psk;
+ Word16 sq, sq2;
+ Word16 alpk, alp, alp_16;
+ Word32 s;
+ Word32 alp0, alp1, alp2;
+ Word16 gsmefrFlag;
+ Word16 *p_codvec = codvec;
+ Word16 *p_temp2;
+
+ Word16 temp1[2*L_CODE];
+ Word16 *p_temp1;
+ Word16 ps2;
+ Word16 ps1;
+ Word16 ps;
+ Word16 ps0;
+
+ Word16 index[10];
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ if (nbPulse == 10)
+ {
+ gsmefrFlag = 1;
+ }
+ else
+ {
+ gsmefrFlag = 0;
+ }
+
+ /* fix i0 on maximum of correlation position */
+ i0 = pos_max[ipos[0]];
+ index[0] = i0;
+ /*------------------------------------------------------------------*
+ * i1 loop: *
+ *------------------------------------------------------------------*/
+
+ /* Default value */
+ psk = -1;
+ alpk = 1;
+ for (i = 0; i < nbPulse; i++)
+ {
+ *(p_codvec++) = i;
+ }
+
+ for (i = 1; i < nbTracks; i++)
+ {
+ i1 = pos_max[ipos[1]];
+ index[1] = i1;
+
+ /* ps0 = add (dn[i0], dn[i1], pOverflow);*/
+ ps0 = (Word16)((Word32) dn[i0] + dn[i1]);
+
+ /* alp0 = L_mult (rr[i0][i0], _1_16, pOverflow); */
+ alp0 = (Word32) rr[i0][i0] << 12;
+
+ /* alp0 = L_mac (alp0, rr[i1][i1], _1_16, pOverflow); */
+ alp0 += (Word32) rr[i1][i1] << 12;
+
+ /* alp0 = L_mac (alp0, rr[i0][i1], _1_8, pOverflow); */
+ alp0 += (Word32) rr[i0][i1] << 13;
+ alp0 += 0x00008000L;
+
+ /*----------------------------------------------------------------*
+ * i2 and i3 loop: *
+ *----------------------------------------------------------------*/
+
+ p_temp1 = temp1;
+ for (i3 = ipos[3]; i3 < L_CODE; i3 += step)
+ {
+ p_temp2 = &rr[i3][0];
+ s = (Word32) * (p_temp2 + i3) >> 1;
+ s += (Word32) * (p_temp2 + i0);
+ s += (Word32) * (p_temp2 + i1);
+ *(p_temp1++) = ps0 + dn[i3];
+ *(p_temp1++) = (Word16)((s + 2) >> 2);
+ }
+
+ /* Default value */
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ia = ipos[2];
+ ib = ipos[3];
+
+ s = (alp0 >> 12);
+
+ for (j = ipos[2]; j < L_CODE; j += step)
+ {
+ /* index increment = step */
+ p_temp2 = &rr[j][0];
+
+ alp1 = (s + (Word32) * (p_temp2 + j)) >> 1;
+
+ alp1 += (Word32) * (p_temp2 + i0);
+
+ alp1 += (Word32) * (p_temp2 + i1);
+
+ p_temp1 = temp1;
+ ps1 = dn[j];
+
+
+ for (i3 = ipos[3]; i3 < L_CODE; i3 += step)
+ {
+ /* index increment = step */
+ ps2 = ps1 + *(p_temp1++);
+
+ sq2 = (Word16)(((Word32) ps2 * ps2) >> 15);
+
+ alp2 = (alp1 + p_temp2[i3]) >> 2;
+ alp2 = (alp2 + *(p_temp1++)) >> 1; /* alp2 is always > 0 */
+ if (((Word32) sq2 * alp) > ((Word32) sq * alp2))
+ {
+ sq = sq2;
+ ps = ps2;
+ alp = (Word16)alp2;
+ ia = j;
+ ib = i3;
+ }
+ }
+
+ }
+ i2 = ia;
+ i3 = ib;
+ index[2] = ia;
+ index[3] = ib;
+
+ /*----------------------------------------------------------------*
+ * i4 and i5 loop: *
+ *----------------------------------------------------------------*/
+
+ alp0 = ((Word32) alp << 15) + 0x00008000L;
+ p_temp1 = temp1;
+
+ for (i5 = ipos[5]; i5 < L_CODE; i5 += step)
+ {
+ p_temp2 = &rr[i5][0];
+ s = (Word32) * (p_temp2 + i5) >> 1;
+ s += (Word32) * (p_temp2 + i0);
+ s += (Word32) * (p_temp2 + i1);
+ s += (Word32) * (p_temp2 + i2);
+ s += (Word32) * (p_temp2 + i3);
+
+ *(p_temp1++) = ps + dn[i5];
+ *(p_temp1++) = (Word16)((s + 2) >> 2);
+ }
+
+ /* Default value */
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ia = ipos[4];
+ ib = ipos[5];
+
+ for (j = ipos[4]; j < L_CODE; j += step)
+ {
+ /* ps1 = add (ps0, dn[i4], pOverflow); */
+ p_temp2 = &rr[j][0];
+
+ /* alp1 = L_mac (alp0, rr[i4][i4], _1_32, pOverflow); */
+ alp1 = alp0 + ((Word32) * (p_temp2 + j) << 11);
+
+ /* alp1 = L_mac (alp1, rr[i0][i4], _1_16, pOverflow); */
+ alp1 += (Word32) * (p_temp2 + i0) << 12;
+
+ /* alp1 = L_mac (alp1, rr[i1][i4], _1_16, pOverflow); */
+ alp1 += (Word32) * (p_temp2 + i1) << 12;
+
+ /* alp1 = L_mac (alp1, rr[i2][i4], _1_16, pOverflow); */
+ alp1 += (Word32) * (p_temp2 + i2) << 12;
+
+ /* alp1 = L_mac (alp1, rr[i3][i4], _1_16, pOverflow); */
+ alp1 += (Word32) * (p_temp2 + i3) << 12;
+
+ p_temp1 = temp1;
+ ps1 = dn[j];
+
+ for (i5 = ipos[5]; i5 < L_CODE; i5 += step)
+ {
+ ps2 = ps1 + *(p_temp1++);
+
+ alp2 = alp1 + ((Word32) * (p_temp2 + i5) << 12);
+
+ alp_16 = (Word16)((alp2 + ((Word32) * (p_temp1++) << 14)) >> 16);
+ sq2 = (Word16)(((Word32) ps2 * ps2) >> 15);
+
+ if (((Word32) sq2 * alp) > ((Word32) sq * alp_16))
+ {
+ sq = sq2;
+ ps = ps2;
+ alp = alp_16;
+ ia = j;
+ ib = i5;
+ }
+
+ }
+ }
+ i4 = ia;
+ i5 = ib;
+ index[4] = ia;
+ index[5] = ib;
+
+ /*----------------------------------------------------------------*
+ * i6 and i7 loop: *
+ *----------------------------------------------------------------*/
+
+ alp0 = ((Word32) alp << 15) + 0x00008000L;
+
+ p_temp1 = temp1;
+
+ for (i7 = ipos[7]; i7 < L_CODE; i7 += step)
+ {
+ s = (Word32) rr[i7][i7] >> 1;
+ s += (Word32) rr[i0][i7];
+ s += (Word32) rr[i1][i7];
+ s += (Word32) rr[i2][i7];
+ s += (Word32) rr[i3][i7];
+ s += (Word32) rr[i4][i7];
+ s += (Word32) rr[i5][i7];
+ *(p_temp1++) = ps + dn[i7];
+ *(p_temp1++) = (Word16)((s + 4) >> 3);
+ }
+
+
+ /* Default value */
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ia = ipos[6];
+ ib = ipos[7];
+
+ for (j = ipos[6]; j < L_CODE; j += step)
+ {
+ /* ps1 = add (ps0, dn[i6], pOverflow); */
+
+ p_temp2 = (Word16 *) & rr[j];
+
+ /* alp1 = L_mac (alp0, rr[i6][i6], _1_64, pOverflow); */
+ alp1 = alp0 + ((Word32) * (p_temp2 + j) << 10);
+
+ /* alp1 = L_mac (alp1, rr[i0][i6], _1_32, pOverflow); */
+ alp1 += (Word32) * (p_temp2 + i0) << 11;
+
+
+ /* alp1 = L_mac (alp1, rr[i1][i6], _1_32, pOverflow); */
+ alp1 += (Word32) * (p_temp2 + i1) << 11;
+
+ /* alp1 = L_mac (alp1, rr[i2][i6], _1_32, pOverflow); */
+ alp1 += (Word32) * (p_temp2 + i2) << 11;
+
+ /* alp1 = L_mac (alp1, rr[i3][i6], _1_32, pOverflow); */
+ alp1 += (Word32) * (p_temp2 + i3) << 11;
+
+ /* alp1 = L_mac (alp1, rr[i4][i6], _1_32, pOverflow); */
+ alp1 += (Word32) * (p_temp2 + i4) << 11;
+
+ /* alp1 = L_mac (alp1, rr[i5][i6], _1_32, pOverflow); */
+ alp1 += (Word32) * (p_temp2 + i5) << 11;
+
+ p_temp1 = temp1;
+ ps1 = dn[j];
+
+ for (i7 = ipos[7]; i7 < L_CODE; i7 += step)
+ {
+ ps2 = ps1 + *(p_temp1++);
+
+ alp2 = alp1 + ((Word32) * (p_temp2 + i7) << 11);
+
+ alp_16 = (Word16)((alp2 + ((Word32) * (p_temp1++) << 14)) >> 16);
+
+ sq2 = (Word16)(((Word32) ps2 * ps2) >> 15);
+
+ if (((Word32) sq2 * alp) > ((Word32) sq * alp_16))
+ {
+ sq = sq2;
+ ps = ps2;
+ alp = alp_16;
+ ia = j;
+ ib = i7;
+ }
+ }
+ }
+
+ i6 = ia;
+ i7 = ib;
+ index[6] = ia;
+ index[7] = ib;
+
+ /* now finished searching a set of 8 pulses */
+
+ if (gsmefrFlag != 0)
+ {
+ /* go on with the two last pulses for GSMEFR */
+ /*----------------------------------------------------------------*
+ * i8 and i9 loop: *
+ *----------------------------------------------------------------*/
+
+ alp0 = ((Word32) alp << 15) + 0x00008000L;
+
+ p_temp1 = temp1;
+
+ for (i9 = ipos[9]; i9 < L_CODE; i9 += step)
+ {
+ s = (Word32) rr[i9][i9] >> 1;
+ s += (Word32) rr[i0][i9];
+ s += (Word32) rr[i1][i9];
+ s += (Word32) rr[i2][i9];
+ s += (Word32) rr[i3][i9];
+ s += (Word32) rr[i4][i9];
+ s += (Word32) rr[i5][i9];
+ s += (Word32) rr[i6][i9];
+ s += (Word32) rr[i7][i9];
+
+ *(p_temp1++) = ps + dn[i9];
+ *(p_temp1++) = (Word16)((s + 4) >> 3);
+ }
+
+ /* Default value */
+ sq = -1;
+ alp = 1;
+ ps = 0;
+ ia = ipos[8];
+ ib = ipos[9];
+
+ for (j = ipos[8]; j < L_CODE; j += step)
+ {
+ /* ps1 = add (ps0, dn[i8], pOverflow); */
+ p_temp2 = &rr[j][0];
+
+ /* alp1 = L_mac (alp0, rr[i8][i8], _1_128, pOverflow); */
+ alp1 = alp0 + ((Word32) * (p_temp2 + j) << 9);
+
+ /* alp1 = L_mac (alp1, rr[i0][i8], _1_64, pOverflow); */
+ alp1 += (Word32) rr[i0][j] << 10;
+
+ /* alp1 = L_mac (alp1, rr[i1][i8], _1_64, pOverflow); */
+ alp1 += (Word32) rr[i1][j] << 10;
+
+ /* alp1 = L_mac (alp1, rr[i2][i8], _1_64, pOverflow); */
+ alp1 += (Word32) rr[i2][j] << 10;
+
+ /* alp1 = L_mac (alp1, rr[i3][i8], _1_64, pOverflow); */
+ alp1 += (Word32) rr[i3][j] << 10;
+
+ /* alp1 = L_mac (alp1, rr[i4][i8], _1_64, pOverflow); */
+ alp1 += (Word32) rr[i4][j] << 10;
+
+ /* alp1 = L_mac (alp1, rr[i5][i8], _1_64, pOverflow); */
+ alp1 += (Word32) rr[i5][j] << 10;
+
+ /* alp1 = L_mac (alp1, rr[i6][i8], _1_64, pOverflow); */
+ alp1 += (Word32) rr[i6][j] << 10;
+
+ /* alp1 = L_mac (alp1, rr[i7][i8], _1_64, pOverflow); */
+ alp1 += (Word32) rr[i7][j] << 10;
+
+ p_temp1 = temp1;
+ ps1 = dn[j];
+
+ for (i9 = ipos[9]; i9 < L_CODE; i9 += step)
+ {
+ /* ps2 = add (ps1, dn[i9], pOverflow); */
+ ps2 = ps1 + *(p_temp1++);
+
+ /* sq2 = mult (ps2, ps2, pOverflow); */
+ sq2 = (Word16)(((Word32) ps2 * ps2) >> 15);
+
+ /* alp2 = L_mac (alp1, rrv[i9], _1_8, pOverflow); */
+ alp2 = alp1 + ((Word32) * (p_temp2 + i9) << 10) ;
+
+ /* alp2 = L_mac (alp2, rr[i8][i9], _1_64, pOverflow); */
+ alp_16 = (Word16)((alp2 + ((Word32) * (p_temp1++) << 13)) >> 16);
+
+ if (((Word32) sq2 * alp) > ((Word32) sq * alp_16))
+ {
+ sq = sq2;
+ ps = ps2;
+ alp = alp_16;
+ ia = j;
+ ib = i9;
+ }
+ }
+ }
+
+ index[8] = ia;
+ index[9] = ib;
+
+ }/* end gsmefrFlag */
+
+ /*---------------------------------------------------------------- *
+ * test and memorise if this combination is better than the last one.*
+ *----------------------------------------------------------------*/
+
+ if (((Word32) alpk * sq) > ((Word32) psk * alp))
+ {
+ psk = sq;
+ alpk = alp;
+
+ if (gsmefrFlag != 0)
+ {
+ oscl_memcpy(codvec, index, (2*NB_TRACK)*sizeof(*index));
+ }
+ else
+ {
+ oscl_memcpy(codvec, index, (2*NB_TRACK_MR102)*sizeof(*index));
+ }
+
+ }
+ /*----------------------------------------------------------------*
+ * Cyclic permutation of i1,i2,i3,i4,i5,i6,i7,(i8 and i9). *
+ *----------------------------------------------------------------*/
+
+ pos = ipos[1];
+ for (j = 1, k = 2; k < nbPulse; j++, k++)
+ {
+ ipos[j] = ipos[k];
+ }
+ ipos[nbPulse-1] = pos;
+ } /* end 1..nbTracks loop*/
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: s10_8pf.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the s10_8pf module.
+------------------------------------------------------------------------------
+*/
+
+#ifndef S10_8PF_H
+#define S10_8PF_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void search_10and8i40(
+ Word16 nbPulse, /* i : nbpulses to find */
+ Word16 step, /* i : stepsize */
+ Word16 nbTracks, /* i : nbTracks */
+ Word16 dn[], /* i : correlation between target and h[] */
+ Word16 rr[][L_CODE], /* i : matrix of autocorrelation */
+ Word16 ipos[], /* i : starting position for each pulse */
+ Word16 pos_max[], /* i : position of maximum of dn[] */
+ Word16 codvec[], /* o : algebraic codebook vector */
+ Flag *pOverflow /* i/o : Overflow flag */
+ );
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _S10_8PF_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: set_sign.cpp
+ Funtions: set_sign
+ set_sign12k2
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This module contains the functions set_sign and set_sign12k2.
+ These functions are used to build a sign vector according
+ to the values in the input arrays. These functions also
+ find the position in the input codes of the maximum correlation
+ and the starting position for each pulse.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "set_sign.h"
+#include "basic_op.h"
+#include "inv_sqrt.h"
+#include "cnst.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: set_sign
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ dn = buffer of correlation values (Word16)
+ sign = buffer containing sign of dn elements (Word16)
+ dn2 = buffer containing the maximum of correlation in each track.(Word16)
+ n = number of maximum correlations in dn2 (Word16)
+
+ Returns:
+ None
+
+ Outputs:
+ dn buffer is modified to contain the absolute value of its input
+ sign buffer is modified to contain the sign information for the
+ values in dn buffer
+ dn2 buffer is modified to denote the location of the maximum
+ correlation for each track.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+ This function builds sign vector according to dn buffer It also finds
+ the position of maximum of correlation in each track and the starting
+ position for each pulse.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ set_sign.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void set_sign(Word16 dn[], i/o : correlation between target and h[]
+ Word16 sign[], o : sign of dn[]
+ Word16 dn2[], o : maximum of correlation in each track.
+ Word16 n i : # of maximum correlations in dn2[]
+)
+{
+ Word16 i, j, k;
+ Word16 val, min;
+ Word16 pos = 0; //initialization only needed to keep gcc silent
+
+ // set sign according to dn[]
+
+ for (i = 0; i < L_CODE; i++) {
+ val = dn[i];
+
+ if (val >= 0) {
+ sign[i] = 32767;
+ } else {
+ sign[i] = -32767;
+ val = negate(val);
+ }
+ dn[i] = val; // modify dn[] according to the fixed sign
+ dn2[i] = val;
+ }
+
+ // keep 8-n maximum positions/8 of each track and store it in dn2[]
+
+ for (i = 0; i < NB_TRACK; i++)
+ {
+ for (k = 0; k < (8-n); k++)
+ {
+ min = 0x7fff;
+ for (j = i; j < L_CODE; j += STEP)
+ {
+ if (dn2[j] >= 0)
+ {
+ val = sub(dn2[j], min);
+
+ if (val < 0)
+ {
+ min = dn2[j];
+ pos = j;
+ }
+ }
+ }
+ dn2[pos] = -1;
+ }
+ }
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void set_sign(Word16 dn[], /* i/o : correlation between target and h[] */
+ Word16 sign[], /* o : sign of dn[] */
+ Word16 dn2[], /* o : maximum of correlation in each track. */
+ Word16 n /* i : # of maximum correlations in dn2[] */
+ )
+{
+ register Word16 i, j, k;
+ Word16 val, min;
+ Word16 pos = 0; /* initialization only needed to keep gcc silent */
+
+ /* set sign according to dn[] */
+ for (i = L_CODE - 1; i >= 0; i--)
+ {
+ val = dn[i];
+
+ if (val >= 0)
+ {
+ sign[i] = 32767;
+ }
+ else
+ {
+ sign[i] = -32767;
+ val = negate(val);
+ dn[i] = val; /* modify dn[] according to the fixed sign */
+ }
+
+ dn2[i] = val;
+ }
+
+ /* keep 8-n maximum positions/8 of each track and store it in dn2[] */
+
+ for (i = 0; i < NB_TRACK; i++)
+ {
+ for (k = 0; k < (8 - n); k++)
+ {
+ min = 0x7fff;
+ for (j = i; j < L_CODE; j += STEP)
+ {
+ if (dn2[j] >= 0)
+ {
+ if (dn2[j] < min)
+ {
+ min = dn2[j];
+ pos = j;
+ }
+ }
+ }
+ dn2[pos] = -1;
+ }
+ }
+
+ return;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: set_sign12k2()
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ dn = buffer of correlation values (Word16)
+ cn = buffer of residual after long term prediction (Word16)
+ sign = sign of correlation buffer elements (Word16)
+ pos_max = buffer containing position of maximum correlation (Word16)
+ nb_track = number of tracks (Word16)
+ ipos = buffer containing the starting position for each pulse (Word16)
+ step = step size in the tracks (Word16)
+ pOverflow = pointer to Overflow flag (Flag)
+
+ Outputs:
+ sign buffer contains the sign of correlation values
+ dn buffer contains the sign-adjusted correlation values
+ pos_max buffer contains the maximum correlation position
+ ipos buffer contains the starting position of each pulse
+ pOverflow -> 1 if the math operations called by this function result in
+ saturation
+
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function builds the sign vector according to dn and cn, and modifies
+ dn to include the sign information (dn[i]=sign[i]*dn[i]). It also finds
+ the position of maximum of correlation in each track and the starting
+ position for each pulse.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ set_sign.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void set_sign12k2 (
+ Word16 dn[], //i/o : correlation between target and h[]
+ Word16 cn[], //i : residual after long term prediction
+ Word16 sign[], //o : sign of d[n]
+ Word16 pos_max[], //o : position of maximum correlation
+ Word16 nb_track, //i : number of tracks tracks
+ Word16 ipos[], //o : starting position for each pulse
+ Word16 step //i : the step size in the tracks
+)
+{
+ Word16 i, j;
+ Word16 val, cor, k_cn, k_dn, max, max_of_all;
+ Word16 pos = 0; // initialization only needed to keep gcc silent
+ Word16 en[L_CODE]; // correlation vector
+ Word32 s;
+
+ // The reference ETSI code uses a global flag for Overflow. However in the
+ // actual implementation a pointer to the overflow flag is passed in. This
+ // pointer is passed into the basic math functions called by this routine.
+
+ // calculate energy for normalization of cn[] and dn[]
+
+ s = 256;
+ for (i = 0; i < L_CODE; i++)
+ {
+ s = L_mac (s, cn[i], cn[i]);
+ }
+ s = Inv_sqrt (s);
+ k_cn = extract_h (L_shl (s, 5));
+
+ s = 256;
+ for (i = 0; i < L_CODE; i++)
+ {
+ s = L_mac (s, dn[i], dn[i]);
+ }
+ s = Inv_sqrt (s);
+ k_dn = extract_h (L_shl (s, 5));
+
+ for (i = 0; i < L_CODE; i++)
+ {
+ val = dn[i];
+ cor = pv_round (L_shl (L_mac (L_mult (k_cn, cn[i]), k_dn, val), 10));
+
+ if (cor >= 0)
+ {
+ sign[i] = 32767; // sign = +1
+ }
+ else
+ {
+ sign[i] = -32767; // sign = -1
+ cor = negate (cor);
+ val = negate (val);
+ }
+ // modify dn[] according to the fixed sign
+ dn[i] = val;
+ en[i] = cor;
+ }
+
+ max_of_all = -1;
+ for (i = 0; i < nb_track; i++)
+ {
+ max = -1;
+
+ for (j = i; j < L_CODE; j += step)
+ {
+ cor = en[j];
+ val = sub (cor, max);
+
+ if (val > 0)
+ {
+ max = cor;
+ pos = j;
+ }
+ }
+ // store maximum correlation position
+ pos_max[i] = pos;
+ val = sub (max, max_of_all);
+
+ if (val > 0)
+ {
+ max_of_all = max;
+ // starting position for i0
+ ipos[0] = i;
+ }
+ }
+
+ //
+ // Set starting position of each pulse.
+ //
+
+ pos = ipos[0];
+ ipos[nb_track] = pos;
+
+ for (i = 1; i < nb_track; i++)
+ {
+ pos = add (pos, 1);
+
+ if (sub (pos, nb_track) >= 0)
+ {
+ pos = 0;
+ }
+ ipos[i] = pos;
+ ipos[add(i, nb_track)] = pos;
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void set_sign12k2(
+ Word16 dn[], /* i/o : correlation between target and h[] */
+ Word16 cn[], /* i : residual after long term prediction */
+ Word16 sign[], /* o : sign of d[n] */
+ Word16 pos_max[], /* o : position of maximum correlation */
+ Word16 nb_track, /* i : number of tracks tracks */
+ Word16 ipos[], /* o : starting position for each pulse */
+ Word16 step, /* i : the step size in the tracks */
+ Flag *pOverflow /* i/o: overflow flag */
+)
+{
+ Word16 i, j;
+ Word16 val;
+ Word16 cor;
+ Word16 k_cn;
+ Word16 k_dn;
+ Word16 max;
+ Word16 max_of_all;
+ Word16 pos = 0; /* initialization only needed to keep gcc silent */
+ Word16 en[L_CODE]; /* correlation vector */
+ Word32 s;
+ Word32 t;
+ Word32 L_temp;
+ Word16 *p_cn;
+ Word16 *p_dn;
+ Word16 *p_sign;
+ Word16 *p_en;
+
+ /* calculate energy for normalization of cn[] and dn[] */
+
+ s = 256;
+ t = 256;
+ p_cn = cn;
+ p_dn = dn; /* crosscorrelation values do not have strong peaks, so
+ scaling applied in cor_h_x (sf=2) guaranteed that the
+ mac of the energy for this vector will not overflow */
+
+ for (i = L_CODE; i != 0; i--)
+ {
+ val = *(p_cn++);
+ s = L_mac(s, val, val, pOverflow);
+ val = *(p_dn++);
+ t += ((Word32) val * val) << 1;
+ }
+ s = Inv_sqrt(s, pOverflow);
+ k_cn = (Word16)((L_shl(s, 5, pOverflow)) >> 16);
+
+ t = Inv_sqrt(t, pOverflow);
+ k_dn = (Word16)(t >> 11);
+
+ p_cn = &cn[L_CODE-1];
+ p_sign = &sign[L_CODE-1];
+ p_en = &en[L_CODE-1];
+
+ for (i = L_CODE - 1; i >= 0; i--)
+ {
+ L_temp = ((Word32)k_cn * *(p_cn--)) << 1;
+ val = dn[i];
+ s = L_mac(L_temp, k_dn, val, pOverflow);
+ L_temp = L_shl(s, 10, pOverflow);
+ cor = pv_round(L_temp, pOverflow);
+
+ if (cor >= 0)
+ {
+ *(p_sign--) = 32767; /* sign = +1 */
+ }
+ else
+ {
+ *(p_sign--) = -32767; /* sign = -1 */
+ cor = negate(cor);
+
+ /* modify dn[] according to the fixed sign */
+ dn[i] = negate(val);
+ }
+
+ *(p_en--) = cor;
+ }
+
+ max_of_all = -1;
+ for (i = 0; i < nb_track; i++)
+ {
+ max = -1;
+
+ for (j = i; j < L_CODE; j += step)
+ {
+ cor = en[j];
+ if (cor > max)
+ {
+ max = cor;
+ pos = j;
+ }
+ }
+ /* store maximum correlation position */
+ pos_max[i] = pos;
+ if (max > max_of_all)
+ {
+ max_of_all = max;
+ /* starting position for i0 */
+ ipos[0] = i;
+ }
+ }
+
+ /*----------------------------------------------------------------*
+ * Set starting position of each pulse. *
+ *----------------------------------------------------------------*/
+
+ pos = ipos[0];
+ ipos[nb_track] = pos;
+
+ for (i = 1; i < nb_track; i++)
+ {
+ pos++;
+
+ if (pos >= nb_track)
+ {
+ pos = 0;
+ }
+ ipos[ i] = pos;
+ ipos[ i + nb_track] = pos;
+ }
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: set_sign.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the set_sign() and set_sign12k2() function.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef SET_SIGN_H
+#define SET_SIGN_H "@(#)$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "basicop_malloc.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void set_sign(Word16 dn[], /* i/o : correlation between target and h[] */
+ Word16 sign[], /* o : sign of dn[] */
+ Word16 dn2[], /* o : maximum of correlation in each track. */
+ Word16 n /* i : # of maximum correlations in dn2[] */
+ );
+
+ void set_sign12k2(
+ Word16 dn[], /* i/o : correlation between target and h[] */
+ Word16 cn[], /* i : residual after long term prediction */
+ Word16 sign[], /* o : sign of d[n] */
+ Word16 pos_max[], /* o : position of maximum correlation */
+ Word16 nb_track, /* i : number of tracks tracks */
+ Word16 ipos[], /* o : starting position for each pulse */
+ Word16 step, /* i : the step size in the tracks */
+ Flag *pOverflow /* i/o : overflow flag */
+ );
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SET_SIGN_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: sid_sync.cpp
+ Functions: sid_sync_init
+ sid_sync_reset
+ sid_sync_exit
+ sid_sync_set_handover_debt
+ sid_sync
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ This file contains the functions that initialize, reset, exit, and perform
+ SID synchronization.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "basic_op.h"
+#include "mode.h"
+#include "sid_sync.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; [Define module specific macros here]
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; [Include all pre-processor statements here. Include conditional
+; compile variables also.]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; [List function prototypes here]
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; [Variable declaration - defined here and used outside this module]
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: sid_sync_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer containing a pointer to the state structure used for
+ SID synchronization (void)
+
+ Outputs:
+ None
+
+ Returns:
+ return_value = status of sid_sync_reset function; -1, if state is pointing
+ to a NULL address (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function initialize one instance of the sid_sync module. It stores
+ the pointer to state struct in *st. This pointer has to be passed to sid_sync
+ in each call. This function returns 0 on success, otherwise, -1.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sid_sync.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 sid_sync_init(void **state)
+{
+ sid_syncState* s;
+
+ if (state == NULL)
+ {
+ /* fprintf(stderr, "sid_sync_init:invalid state parameter\n"); */
+ return -1;
+ }
+
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (sid_syncState *)
+ oscl_malloc(sizeof(sid_syncState))) == NULL)
+ {
+ /* fprintf(stderr,
+ "sid_sync_init: "
+ "can not malloc state structure\n"); */
+ return -1;
+ }
+ s->sid_update_rate = 8;
+
+ *state = (void *)s;
+
+ return(sid_sync_reset(s));
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: sid_sync_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to the state structure used for SID synchronization (void)
+
+ Outputs:
+ None
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs a reset of the sid_sync module by setting the state
+ memory to zero.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sid_sync.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+Word16 sid_sync_reset(void *st)
+{
+ sid_syncState *state = (sid_syncState *) st;
+
+ state->sid_update_counter = 3;
+ state->sid_handover_debt = 0;
+ state->prev_ft = TX_SPEECH_GOOD;
+
+ return 0;
+}
+
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: sid_sync_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer containing a pointer to the state structure used for
+ SID synchronization (void)
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function frees up the state structure used by sid_sync function. It
+ stores NULL in *state.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sid_sync.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void sid_sync_exit(void **state)
+{
+ sid_syncState **st = (sid_syncState **) state;
+
+ if (st == NULL || *st == NULL)
+ {
+ return;
+ }
+
+ /* deallocate memory */
+ oscl_free(*st);
+ *st = NULL;
+
+ return;
+
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: sid_sync_set_handover_debt
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to the state structure used for SID synchronization
+ (sid_syncState)
+ debtFrames = number of handover debt frames (Word16)
+
+ Outputs:
+ st->sid_handover_debt is set to debtFrames
+
+ Returns:
+ return_value = 0
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function updates the handover debt to debtFrames. Extra SID_UPD are
+ scheduled to update remote decoder CNI states, right after an handover.
+ This is primarily for use on MS UL side.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sid_sync.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void sid_sync_set_handover_debt(sid_syncState *st,
+ Word16 debtFrames)
+{
+ /* debtFrames >= 0 */
+ st->sid_handover_debt = debtFrames;
+ return;
+}
+
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: sid_sync
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to the state structure used for SID synchronization
+ (sid_syncState)
+ mode = codec mode (enum Mode)
+ tx_frame_type = pointer to TX frame type store (enum TXFrameType)
+
+ Outputs:
+ tx_frame_type contains the new TX frame type
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs SID frame synchronization to ensure that the mode
+ only switches to a neighbouring mode.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sid_sync.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+void sid_sync(void *state,
+ enum Mode mode,
+ enum TXFrameType *tx_frame_type)
+{
+
+ sid_syncState *st = (sid_syncState *) state;
+
+ if (mode == MRDTX)
+ {
+
+ st->sid_update_counter--;
+
+ if (st->prev_ft == TX_SPEECH_GOOD)
+ {
+ *tx_frame_type = TX_SID_FIRST;
+ st->sid_update_counter = 3;
+ }
+ else
+ {
+ /* TX_SID_UPDATE or TX_NO_DATA */
+ if ((st->sid_handover_debt > 0) &&
+ (st->sid_update_counter > 2))
+ {
+ /* ensure extra updates are properly delayed after
+ a possible SID_FIRST */
+ *tx_frame_type = TX_SID_UPDATE;
+ st->sid_handover_debt--;
+ }
+ else
+ {
+ if (st->sid_update_counter == 0)
+ {
+ *tx_frame_type = TX_SID_UPDATE;
+ st->sid_update_counter = st->sid_update_rate;
+ }
+ else
+ {
+ *tx_frame_type = TX_NO_DATA;
+ }
+ }
+ }
+ }
+ else
+ {
+ st->sid_update_counter = st->sid_update_rate ;
+ *tx_frame_type = TX_SPEECH_GOOD;
+ }
+ st->prev_ft = *tx_frame_type;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: sid_sync.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains the type definition and function prototypes used by the
+ SID synchronization functions.
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef _SID_SYNC_H_
+#define _SID_SYNC_H_
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "frame.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+#define sid_sync_h "$Id $"
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Word16 sid_update_rate; /* Send SID Update every sid_update_rate frame */
+ Word16 sid_update_counter; /* Number of frames since last SID */
+ Word16 sid_handover_debt; /* Number of extra SID_UPD frames to schedule*/
+ enum TXFrameType prev_ft;
+ } sid_syncState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ /* initialize one instance of the sid_sync module
+ Stores pointer to state struct in *st. This pointer has to
+ be passed to sid_sync in each call.
+ returns 0 on success
+ */
+ Word16 sid_sync_init(void **st);
+
+ /* reset of sid_sync module (i.e. set state memory to zero)
+ returns 0 on success
+ */
+ Word16 sid_sync_reset(void *st);
+
+ /* de-initialize sid_sync module (i.e. free status struct)
+ stores NULL in *st
+ */
+ void sid_sync_exit(void **st);
+
+ /* update handover debt
+ debtFrames extra SID_UPD are scheduled .
+ to update remote decoder CNI states, right after an handover.
+ (primarily for use on MS UL side )
+ */
+ void sid_sync_set_handover_debt(sid_syncState *st, /* i/o: sid_sync state */
+ Word16 debtFrames);
+
+ /* To ensure that the mode only switches to a neighbouring mode */
+ void sid_sync(void *st ,
+ enum Mode mode,
+ enum TXFrameType *tx_frame_type);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SID_SYNC_H_ */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: sp_enc.cpp
+ Funtions: GSMInitEncode
+ Speech_Encode_Frame_reset
+ GSMEncodeFrameExit
+ Speech_Encode_Frame_First
+ GSMEncodeFrame
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ These functions comprise the pre filtering and encoding of one speech frame.
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "sp_enc.h"
+#include "typedef.h"
+#include "cnst.h"
+#include "set_zero.h"
+#include "pre_proc.h"
+#include "prm2bits.h"
+#include "mode.h"
+#include "cod_amr.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: GSMInitEncode
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+ Inputs:
+ state = pointer to an array of pointers to structures of type
+ Speech_Decode_FrameState
+ dtx = flag to turn off or turn on DTX (Flag)
+ id = pointer to an array whose contents are of type char
+
+ Outputs:
+ pre_state field of the structure pointed to by the pointer pointed to
+ by state is set to NULL
+ cod_amr_state field of the structure pointed to by the pointer pointed to
+ by state is set to NULL
+ dtx field of the structure pointed to by the pointer pointed to by state
+ is set to the input dtx
+
+ Returns:
+ return_value = set to zero, if initialization was successful; -1,
+ otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function allocates memory for filter structure and initializes state
+ memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sp_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+ Note: Original function name of Speech_Encode_Frame_init was changed to
+ GSMInitEncode in the Code section.
+
+int Speech_Encode_Frame_init (void **state_data,
+ Flag dtx,
+ char *id)
+{
+ Speech_Encode_FrameState* s;
+
+ if (state_data == NULL){
+ fprintf(stderr, "Speech_Encode_Frame_init: invalid parameter\n");
+ return -1;
+ }
+ *state_data = NULL;
+
+ // allocate memory
+ if ((s= (Speech_Encode_FrameState *) malloc(sizeof(Speech_Encode_FrameState))) == NULL){
+ fprintf(stderr, "Speech_Encode_Frame_init: can not malloc state "
+ "structure\n");
+ return -1;
+ }
+
+ s->complexityCounter = getCounterId(id);
+
+ s->pre_state = NULL;
+ s->cod_amr_state = NULL;
+ s->dtx = dtx;
+
+ if (Pre_Process_init(&s->pre_state) ||
+ cod_amr_init(&s->cod_amr_state, s->dtx)) {
+ GSMEncodeFrameExit(&s);
+ return -1;
+ }
+
+ Speech_Encode_Frame_reset(s);
+ *state_data = (void *)s;
+
+ return 0;
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 GSMInitEncode(void **state_data,
+ Flag dtx,
+ Word8 *id)
+{
+ Speech_Encode_FrameState* s;
+
+ OSCL_UNUSED_ARG(id);
+
+ if (state_data == NULL)
+ {
+ /* fprintf(stderr, "Speech_Encode_Frame_init: invalid parameter\n"); */
+ return -1;
+ }
+ *state_data = NULL;
+
+ /* allocate memory */
+ if ((s = (Speech_Encode_FrameState *) oscl_malloc(sizeof(Speech_Encode_FrameState))) == NULL)
+ {
+ /* fprintf(stderr, "Speech_Encode_Frame_init: can not malloc state "
+ "structure\n"); */
+ return -1;
+ }
+
+ s->pre_state = NULL;
+ s->cod_amr_state = NULL;
+ s->dtx = dtx;
+
+ if (Pre_Process_init(&s->pre_state) ||
+ cod_amr_init(&s->cod_amr_state, s->dtx))
+ {
+ Speech_Encode_FrameState** temp = &s;
+ GSMEncodeFrameExit((void**)temp);
+ return -1;
+ }
+
+ Speech_Encode_Frame_reset(s);
+ *state_data = (void *)s;
+
+ return 0;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Speech_Encode_Frame_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to structures of type Speech_Decode_FrameState
+
+ Outputs:
+ None
+
+ Returns:
+ return_value = set to zero if reset was successful; -1, otherwise (int)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function resets state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sp_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Speech_Encode_Frame_reset (void *state_data)
+{
+
+ Speech_Encode_FrameState *state =
+ (Speech_Encode_FrameState *) state_data;
+
+ if (state_data == NULL){
+ fprintf(stderr, "Speech_Encode_Frame_reset
+ : invalid parameter\n");
+ return -1;
+ }
+
+ Pre_Process_reset(state->pre_state);
+ cod_amr_reset(state->cod_amr_state);
+
+ setCounter(state->complexityCounter);
+ Init_WMOPS_counter();
+ setCounter(0); // set counter to global counter
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 Speech_Encode_Frame_reset(void *state_data)
+{
+
+ Speech_Encode_FrameState *state =
+ (Speech_Encode_FrameState *) state_data;
+
+ if (state_data == NULL)
+ {
+ /* fprintf(stderr, "Speech_Encode_Frame_reset
+ : invalid parameter\n"); */
+ return -1;
+ }
+
+ Pre_Process_reset(state->pre_state);
+ cod_amr_reset(state->cod_amr_state);
+
+ return 0;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: GSMEncodeFrameExit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to a pointer to a structure of type cod_amrState
+
+ Outputs:
+ state points to a NULL address
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function frees the memory used for state memory.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sp_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Note: Original function name of Speech_Encode_Frame_exit was changed to
+ GSMEncodeFrameExit in the Code section.
+
+void Speech_Encode_Frame_exit (void **state_data)
+{
+
+ Speech_Encode_FrameState **state =
+ (Speech_Encode_FrameState **) state_data;
+
+ if (state == NULL || *state == NULL)
+ return;
+
+ Pre_Process_exit(&(*state)->pre_state);
+ cod_amr_exit(&(*state)->cod_amr_state);
+
+ setCounter((*state)->complexityCounter);
+ WMOPS_output(0);
+ setCounter(0); // set counter to global counter
+
+ // deallocate memory
+ free(*state);
+ *state = NULL;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void GSMEncodeFrameExit(void **state_data)
+{
+
+ Speech_Encode_FrameState **state =
+ (Speech_Encode_FrameState **) state_data;
+
+ if (state == NULL || *state == NULL)
+ return;
+
+ Pre_Process_exit(&(*state)->pre_state);
+ cod_amr_exit(&(*state)->cod_amr_state);
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: Speech_Encode_Frame_First
+------------------------------------------------------------------------------
+
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to a structure of type Speech_Encode_FrameState that contains
+ the post filter states
+ new_speech = pointer to buffer of length L_FRAME that contains
+ the speech input (Word16)
+
+ Outputs:
+ The structure of type Speech_Encode_FrameState pointed to by st is updated.
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function encodes the first frame of speech. It calls the pre-processing
+ filter and the first frame encoder.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sp_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int Speech_Encode_Frame_First (
+ Speech_Encode_FrameState *st, // i/o : post filter states
+ Word16 *new_speech) // i : speech input
+{
+#if !defined(NO13BIT)
+ Word16 i;
+#endif
+
+ setCounter(st->complexityCounter);
+
+#if !defined(NO13BIT)
+ // Delete the 3 LSBs (13-bit input)
+ for (i = 0; i < L_NEXT; i++)
+ {
+ new_speech[i] = new_speech[i] & 0xfff8;
+ }
+#endif
+
+ // filter + downscaling
+ Pre_Process (st->pre_state, new_speech, L_NEXT);
+
+ cod_amr_first(st->cod_amr_state, new_speech);
+
+ Init_WMOPS_counter (); // reset WMOPS counter for the new frame
+
+ return 0;
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void Speech_Encode_Frame_First(
+ Speech_Encode_FrameState *st, /* i/o : post filter states */
+ Word16 *new_speech) /* i : speech input */
+{
+#if !defined(NO13BIT)
+ Word16 i;
+#endif
+
+#if !defined(NO13BIT)
+ /* Delete the 3 LSBs (13-bit input) */
+ for (i = 0; i < L_NEXT; i++)
+ {
+ new_speech[i] = new_speech[i] & 0xfff8;
+ }
+#endif
+
+ /* filter + downscaling */
+ Pre_Process(st->pre_state, new_speech, L_NEXT);
+
+ cod_amr_first(st->cod_amr_state, new_speech);
+
+ return;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: cod_amr
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state_data = a void pointer to the post filter states
+ mode = AMR mode of type enum Mode
+ new_speech = pointer to buffer of length L_FRAME that contains
+ the speech input of type Word16
+ serial = pointer to the serial bit stream of type Word16
+ usedMode = pointer to the used mode of type enum Mode
+
+ Outputs:
+ serial -> encoded serial bit stream
+ The value pointed to by usedMode is updated.
+
+ Returns:
+ return_value = 0 (int)
+
+ Global Variables Used:
+ None.
+
+ Local Variables Needed:
+ None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function is the entry point to the GSM AMR encoder. The following
+ operations are performed to generate one encoded frame: First, the incoming
+ audio samples are passed through the pre-processing filter where they are
+ filtered and downscaled. A call is then made to the main encoder cod_amr().
+ This generates the set of encoded parameters which include the LSP, adaptive
+ codebook, and fixed codebook quantization indices (addresses and gains). The
+ generated parameters are then converted to serial bits.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ sp_enc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+ Note: Original function name of Speech_Encode_Frame was changed to
+ GSMEncodeFrame in the Code section.
+
+int Speech_Encode_Frame (
+ void *state_data, // i/o : post filter states
+ enum Mode mode, // i : speech coder mode
+ Word16 *new_speech, // i : speech input
+ Word16 *serial, // o : serial bit stream
+ enum Mode *usedMode // o : used speech coder mode
+ )
+{
+
+ Speech_Encode_FrameState *st =
+ (Speech_Encode_FrameState *) state_data;
+
+ Word16 prm[MAX_PRM_SIZE]; // Analysis parameters
+ Word16 syn[L_FRAME]; // Buffer for synthesis speech
+ Word16 i;
+
+ setCounter(st->complexityCounter);
+ Reset_WMOPS_counter (); // reset WMOPS counter for the new frame
+ // initialize the serial output frame to zero
+ for (i = 0; i < MAX_SERIAL_SIZE; i++)
+ {
+ serial[i] = 0;
+ }
+#if !defined(NO13BIT)
+ // Delete the 3 LSBs (13-bit input)
+ for (i = 0; i < L_FRAME; i++)
+ {
+ new_speech[i] = new_speech[i] & 0xfff8;
+
+
+ }
+#endif
+
+ // filter + downscaling
+ Pre_Process (st->pre_state, new_speech, L_FRAME);
+
+ // Call the speech encoder
+ cod_amr(st->cod_amr_state, mode, new_speech, prm, usedMode, syn);
+
+ // Parameters to serial bits
+ Prm2bits (*usedMode, prm, &serial[0]);
+
+ fwc();
+ setCounter(0); // set counter to global counter
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void GSMEncodeFrame(
+ void *state_data, /* i/o : post filter states */
+ enum Mode mode, /* i : speech coder mode */
+ Word16 *new_speech, /* i : speech input */
+ Word16 *serial, /* o : serial bit stream */
+ enum Mode *usedMode /* o : used speech coder mode */
+)
+{
+
+ Speech_Encode_FrameState *st =
+ (Speech_Encode_FrameState *) state_data;
+
+ Word16 prm[MAX_PRM_SIZE]; /* Analysis parameters. */
+ Word16 syn[L_FRAME]; /* Buffer for synthesis speech */
+ Word16 i;
+
+ /* initialize the serial output frame to zero */
+ for (i = 0; i < MAX_SERIAL_SIZE; i++)
+ {
+ serial[i] = 0;
+ }
+#if !defined(NO13BIT)
+ /* Delete the 3 LSBs (13-bit input) */
+ for (i = 0; i < L_FRAME; i++)
+ {
+ new_speech[i] = new_speech[i] & 0xfff8;
+ }
+#endif
+
+ /* filter + downscaling */
+ Pre_Process(st->pre_state, new_speech, L_FRAME);
+
+ /* Call the speech encoder */
+ cod_amr(st->cod_amr_state, mode, new_speech, prm, usedMode, syn);
+
+ /* Parameters to serial bits */
+ Prm2bits(*usedMode, prm, &serial[0], &(st->cod_amr_state->common_amr_tbls));
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: sp_enc.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : sp_enc.h
+ Purpose : Encoding of one speech frame
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef sp_enc_h
+#define sp_enc_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst.h"
+#include "pre_proc.h"
+#include "mode.h"
+#include "cod_amr.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; [Define module specific macros here]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; [Include all pre-processor statements here.]
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; [Declare variables used in this module but defined elsewhere]
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ typedef struct
+ {
+ Pre_ProcessState *pre_state;
+ cod_amrState *cod_amr_state;
+ Flag dtx;
+ } Speech_Encode_FrameState;
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; [List function prototypes here]
+ ----------------------------------------------------------------------------*/
+ /* initialize one instance of the speech encoder
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to Speech_Encode_Frame in each call.
+ returns 0 on success */
+ Word16 GSMInitEncode(void **state_data,
+ Flag dtx,
+ Word8 *id);
+
+
+ /* reset speech encoder (i.e. set state memory to zero)
+ returns 0 on success */
+ Word16 Speech_Encode_Frame_reset(void *state_data);
+
+ /* de-initialize speech encoder (i.e. free status struct)
+ stores NULL in *s */
+ void GSMEncodeFrameExit(void **state_data);
+
+ void Speech_Encode_Frame_First(
+ Speech_Encode_FrameState *st, /* i/o : post filter states */
+ Word16 *new_speech); /* i : speech input */
+
+ void GSMEncodeFrame(
+ void *state_data, /* i/o : encoder states */
+ enum Mode mode, /* i : speech coder mode */
+ Word16 *new_speech, /* i : input speech */
+ Word16 *serial, /* o : serial bit stream */
+ enum Mode *usedMode /* o : used speech coder mode */
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _sp_enc_h_ */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: spreproc.cpp
+ Functions: subframePreProc
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "spreproc.h"
+#include "typedef.h"
+#include "weight_a.h"
+#include "syn_filt.h"
+#include "residu.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: subframePreProc
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ mode -- enum Mode -- coder mode
+ gamma1 -- const Word16 array -- spectral exp. factor 1
+ gamma1_12k2 -- const Word16 array -- spectral exp. factor 1 for EFR
+ gamma2 -- const Word16 array -- spectral exp. factor 2
+ A -- Pointer to Word16 -- A(z) unquantized for the 4 subframes
+ Aq -- Pointer to Word16 -- A(z) quantized for the 4 subframes
+ speech -- Pointer to Word16 -- speech segment
+ mem_err -- Pointer to Word16 -- pointer to error signal
+ mem_w0 -- Pointer to Word16 -- memory of weighting filter
+ zero -- Pointer to Word16 -- pointer to zero vector
+
+ Outputs:
+ ai_zero -- Word16 array -- history of weighted synth. filter
+ exc -- Word16 array -- long term prediction residual
+ h1 -- Word16 array -- impulse response
+ xn -- Word16 array -- target vector for pitch search
+ res2 -- Word16 array -- long term prediction residual
+ error -- Word16 array -- error of LPC synthesis filter
+
+ Returns:
+ Zero
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ spreproc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void subframePreProc(
+ enum Mode mode, /* i : coder mode */
+ const Word16 gamma1[], /* i : spectral exp. factor 1 */
+ const Word16 gamma1_12k2[],/* i : spectral exp. factor 1 for EFR */
+ const Word16 gamma2[], /* i : spectral exp. factor 2 */
+ Word16 *A, /* i : A(z) unquantized for the 4 subframes */
+ Word16 *Aq, /* i : A(z) quantized for the 4 subframes */
+ Word16 *speech, /* i : speech segment */
+ Word16 *mem_err, /* i : pointer to error signal */
+ Word16 *mem_w0, /* i : memory of weighting filter */
+ Word16 *zero, /* i : pointer to zero vector */
+ Word16 ai_zero[], /* o : history of weighted synth. filter */
+ Word16 exc[], /* o : long term prediction residual */
+ Word16 h1[], /* o : impulse response */
+ Word16 xn[], /* o : target vector for pitch search */
+ Word16 res2[], /* o : long term prediction residual */
+ Word16 error[] /* o : error of LPC synthesis filter */
+)
+{
+ Word16 Ap1[MP1]; /* A(z) with spectral expansion */
+ Word16 Ap2[MP1]; /* A(z) with spectral expansion */
+ const Word16 *g1; /* Pointer to correct gammma1 vector */
+
+ /* mode specific pointer to gamma1 values */
+ if (mode == MR122 || mode == MR102)
+ {
+ g1 = gamma1_12k2;
+ }
+ else
+ {
+ g1 = gamma1;
+ }
+
+ /* Find the weighted LPC coefficients for the weighting filter. */
+ Weight_Ai(A, g1, Ap1);
+ Weight_Ai(A, gamma2, Ap2);
+
+ oscl_memcpy(ai_zero, Ap1, (M + 1)*sizeof(Word16));
+
+
+ Syn_filt(Aq, ai_zero, h1, L_SUBFR, zero, 0);
+ Syn_filt(Ap2, h1, h1, L_SUBFR, zero, 0);
+
+ /*
+ *
+ * Find the target vector for pitch search:
+ *
+ */
+
+ /* LPC residual */
+ Residu(Aq, speech, res2, L_SUBFR);
+
+ oscl_memcpy(exc, res2, L_SUBFR*sizeof(Word16));
+
+ Syn_filt(Aq, exc, error, L_SUBFR, mem_err, 0);
+
+ Residu(Ap1, error, xn, L_SUBFR);
+
+ /* target signal xn[]*/
+ Syn_filt(Ap2, xn, xn, L_SUBFR, mem_w0, 0);
+
+ return;
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: spreproc.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, spreproc.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef spreproc_h
+#define spreproc_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "cnst.h"
+#include "mode.h"
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ void subframePreProc(
+ enum Mode mode, /* i : coder mode */
+ const Word16 gamma1[], /* i : spectral exp. factor 1 */
+ const Word16 gamma1_12k2[],/* i : spectral exp. factor 1 for EFR */
+ const Word16 gamma2[], /* i : spectral exp. factor 2 */
+ Word16 *A, /* i : A(z) unquantized for the 4 subframes */
+ Word16 *Aq, /* i : A(z) quantized for the 4 subframes */
+ Word16 *speech, /* i : speech segment */
+ Word16 *mem_err, /* i : pointer to error signal */
+ Word16 *mem_w0, /* i : memory of weighting filter */
+ Word16 *zero, /* i : pointer to zero vector */
+ Word16 ai_zero[], /* o : history of weighted synth. filter */
+ Word16 exc[], /* o : long term prediction residual */
+ Word16 h1[], /* o : impulse response */
+ Word16 xn[], /* o : target vector for pitch search */
+ Word16 res2[], /* o : long term prediction residual */
+ Word16 error[] /* o : error of LPC synthesis filter */
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* spreproc_h */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: spstproc.cpp
+ Functions: subframePostProc
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+ Subframe post processing
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "spstproc.h"
+#include "syn_filt.h"
+#include "cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: subframePostProc
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+ Inputs:
+ speech -- Pointer to Word16 -- speech segment
+ mode -- enum Mode -- coder mode
+ i_subfr -- Word16 -- Subframe nr
+ gain_pit -- Word16 -- Pitch gain Q14
+ gain_code -- Word16 -- Decoded innovation gain
+ Aq -- Pointer to Word16 -- A(z) quantized for the 4 subframes
+ synth -- Word16 Array -- Local synthesis
+ xn -- Word16 Array -- Target vector for pitch search
+ code -- Word16 Array -- Fixed codebook exitation
+ y1 -- Word16 Array -- Filtered adaptive exitation
+ y2 -- Word16 Array -- Filtered fixed codebook excitation
+ mem_syn -- Pointer to Word16 -- memory of synthesis filter
+
+ Outputs:
+ mem_syn -- Pointer to Word16 -- memory of synthesis filter
+ mem_err -- Pointer to Word16 -- pointer to error signal
+ mem_w0 -- Pointer to Word16 -- memory of weighting filter
+ exc -- Pointer to Word16 -- long term prediction residual
+ sharp -- Pointer to Word16 -- pitch sharpening value
+ pOverflow -- Pointer to Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ spstproc.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void subframePostProc(
+ Word16 *speech, /* i : speech segment */
+ enum Mode mode, /* i : coder mode */
+ Word16 i_subfr, /* i : Subframe nr */
+ Word16 gain_pit, /* i : Pitch gain Q14 */
+ Word16 gain_code, /* i : Decoded innovation gain */
+ Word16 *Aq, /* i : A(z) quantized for the 4 subframes */
+ Word16 synth[], /* i : Local snthesis */
+ Word16 xn[], /* i : Target vector for pitch search */
+ Word16 code[], /* i : Fixed codebook exitation */
+ Word16 y1[], /* i : Filtered adaptive exitation */
+ Word16 y2[], /* i : Filtered fixed codebook excitation */
+ Word16 *mem_syn, /* i/o : memory of synthesis filter */
+ Word16 *mem_err, /* o : pointer to error signal */
+ Word16 *mem_w0, /* o : memory of weighting filter */
+ Word16 *exc, /* o : long term prediction residual */
+ Word16 *sharp, /* o : pitch sharpening value */
+ Flag *pOverflow /* o : overflow indicator */
+)
+{
+ Word16 i;
+ Word16 j;
+ Word16 temp;
+ Word32 L_temp;
+ Word32 L_temp2;
+ Word16 tempShift;
+ Word16 kShift;
+ Word16 pitch_fac;
+ Word16 *p_exc;
+ Word16 *p_code;
+
+ OSCL_UNUSED_ARG(pOverflow);
+
+ if (mode != MR122)
+ {
+ tempShift = 1;
+ kShift = 16 - 2 - 1;
+ pitch_fac = gain_pit;
+ }
+ else
+ {
+ tempShift = 2;
+ kShift = 16 - 4 - 1;
+ pitch_fac = gain_pit >> 1;
+ }
+
+ /*------------------------------------------------------------*
+ * - Update pitch sharpening "sharp" with quantized gain_pit *
+ *------------------------------------------------------------*/
+
+ if (gain_pit < SHARPMAX)
+ {
+ *sharp = gain_pit;
+ }
+ else
+ {
+ *sharp = SHARPMAX;
+ }
+
+ /*------------------------------------------------------*
+ * - Find the total excitation *
+ * - find synthesis speech corresponding to exc[] *
+ * - update filters memories for finding the target *
+ * vector in the next subframe *
+ * (update error[-m..-1] and mem_w_err[]) *
+ *------------------------------------------------------*/
+
+ p_exc = &exc[ i_subfr];
+ p_code = &code[0];
+
+ for (i = L_SUBFR >> 1; i != 0 ; i--)
+ {
+ /* exc[i] = gain_pit*exc[i] + gain_code*code[i]; */
+
+ /*
+ * 12k2 others
+ * ---------------------------------
+ * exc Q0 Q0
+ * gain_pit Q14 Q14
+ * pitch_fac Q13 Q14
+ * product: Q14 Q15
+ *
+ * code Q12 Q13
+ * gain_code Q1 Q1
+ * product Q14 Q15
+ * sum Q14 Q15
+ *
+ * tempShift 2 1
+ * sum<<tempShift Q16 Q16
+ * result -> exc Q0 Q0
+ */
+ L_temp = ((Word32) * (p_exc++) * pitch_fac) << 1;
+ L_temp2 = ((Word32) * (p_exc--) * pitch_fac) << 1;
+ L_temp += ((Word32) * (p_code++) * gain_code) << 1;
+ L_temp2 += ((Word32) * (p_code++) * gain_code) << 1;
+ L_temp <<= tempShift;
+ L_temp2 <<= tempShift;
+ *(p_exc++) = (Word16)((L_temp + 0x08000L) >> 16);
+ *(p_exc++) = (Word16)((L_temp2 + 0x08000L) >> 16);
+
+ }
+
+ Syn_filt(
+ Aq,
+ &exc[i_subfr],
+ &synth[i_subfr],
+ L_SUBFR,
+ mem_syn,
+ 1);
+
+ for (i = L_SUBFR - M, j = 0; i < L_SUBFR; i++, j++)
+ {
+ mem_err[j] = speech[i_subfr + i] - synth[i_subfr + i];
+
+ /*
+ * 12k2 others
+ * ---------------------------------
+ * y1 Q0 Q0
+ * gain_pit Q14 Q14
+ * product Q15 Q15
+ * shifted prod. Q16 Q16
+ * temp Q0 Q0
+ *
+ * y2 Q10 Q12
+ * gain_code Q1 Q1
+ * product Q12 Q14
+ * kshift 4 2
+ * shifted prod. Q16 Q16
+ * k Q0 Q0
+ * mem_w0,xn,sum Q0 Q0
+ */
+
+ L_temp = ((Word32)y1[i] * gain_pit);
+ temp = (Word16)(L_temp >> 14);
+
+ L_temp = ((Word32)y2[i] * gain_code);
+ temp += (Word16)(L_temp >> kShift);
+
+ mem_w0[j] = xn[i] - temp;
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: spstproc.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions and prototype definitions
+ needed by the file, spstproc.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef spstproc_h
+#define spstproc_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void subframePostProc(
+ Word16 *speech, /* i : speech segment */
+ enum Mode mode, /* i : coder mode */
+ Word16 i_subfr, /* i : Subframe nr */
+ Word16 gain_pit, /* i : Pitch gain Q14 */
+ Word16 gain_code, /* i : Decoded innovation gain */
+ Word16 *Aq, /* i : A(z) quantized for the 4 subframes */
+ Word16 synth[], /* i : Local snthesis */
+ Word16 xn[], /* i : Target vector for pitch search */
+ Word16 code[], /* i : Fixed codebook exitation */
+ Word16 y1[], /* i : Filtered adaptive exitation */
+ Word16 y2[], /* i : Filtered fixed codebook excitation */
+ Word16 *mem_syn, /* i/o : memory of synthesis filter */
+ Word16 *mem_err, /* o : pointer to error signal */
+ Word16 *mem_w0, /* o : memory of weighting filter */
+ Word16 *exc, /* o : long term prediction residual */
+ Word16 *sharp, /* o : pitch sharpening value */
+ Flag *pOverflow
+ );
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* spstproc_h */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ton_stab.cpp
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "ton_stab.h"
+#include "oper_32b.h"
+#include "cnst.h"
+#include "set_zero.h"
+#include "basic_op.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ton_stab_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to pointer to structure type tonStabState.
+
+ Outputs:
+ None
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function: ton_stab_init
+ Purpose: Allocates state memory and initializes state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ton_stab.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int ton_stab_init (tonStabState **state)
+{
+ tonStabState* s;
+
+ if (state == (tonStabState **) NULL){
+ // fprintf(stderr, "ton_stab_init: invalid parameter\n");
+ return -1;
+ }
+ *state = NULL;
+
+ // allocate memory
+ if ((s= (tonStabState *) malloc(sizeof(tonStabState))) == NULL){
+ // fprintf(stderr, "ton_stab_init: can not malloc state structure\n");
+ return -1;
+ }
+
+ ton_stab_reset(s);
+
+ *state = s;
+
+ return 0;
+}
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 ton_stab_init(tonStabState **state)
+{
+ tonStabState* s;
+
+ if (state == (tonStabState **) NULL)
+ {
+ /* fprintf(stderr, "ton_stab_init: invalid parameter\n"); */
+ return -1;
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (tonStabState *) oscl_malloc(sizeof(tonStabState))) == NULL)
+ {
+ /* fprintf(stderr, "ton_stab_init: can not malloc state structure\n"); */
+ return -1;
+ }
+
+ ton_stab_reset(s);
+
+ *state = s;
+
+ return 0;
+}
+
+/****************************************************************************/
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ton_stab_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st = pointer to pointer to structure type tonStabState.
+
+ Outputs:
+ None
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function: ton_stab_reset
+ Purpose: Initializes state memory to zero
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ton_stab.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+int ton_stab_reset (tonStabState *st)
+{
+ if (st == (tonStabState *) NULL){
+ // fprintf(stderr, "ton_stab_init: invalid parameter\n");
+ return -1;
+ }
+
+ // initialize tone stabilizer state
+ st->count = 0;
+ Set_zero(st->gp, N_FRAME); // Init Gp_Clipping
+
+ return 0;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 ton_stab_reset(tonStabState *st)
+{
+ if (st == (tonStabState *) NULL)
+ {
+ /* fprintf(stderr, "ton_stab_init: invalid parameter\n"); */
+ return -1;
+ }
+
+ /* initialize tone stabilizer state */
+ st->count = 0;
+ /* Init Gp_Clipping */
+ oscl_memset((void *)st->gp, 0, N_FRAME*sizeof(*st->gp));
+
+
+ return 0;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: ton_stab_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to pointer to structure type tonStabState.
+
+ Outputs:
+ None
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function: ton_stab_exit
+ Purpose: The memory used for state memory is freed
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ton_stab.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void ton_stab_exit (tonStabState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ // deallocate memory
+ free(*state);
+ *state = NULL;
+
+ return;
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void ton_stab_exit(tonStabState **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: check_lsp
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to pointer to structure type tonStabState.
+ lsp = pointer to unquantized LSPs of type Word16
+
+ Outputs:
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function: check_lsp()
+ Purpose: Check the LSP's to detect resonances
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ton_stab.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 check_lsp(tonStabState *st, // i/o : State struct
+ Word16 *lsp // i : unquantized LSP's
+)
+{
+ Word16 i, dist, dist_min1, dist_min2, dist_th;
+
+ // Check for a resonance:
+ // Find minimum distance between lsp[i] and lsp[i+1]
+
+ dist_min1 = MAX_16;
+ for (i = 3; i < M-2; i++)
+ {
+ dist = sub(lsp[i], lsp[i+1]);
+
+ if (sub(dist, dist_min1) < 0)
+ {
+ dist_min1 = dist;
+ }
+ }
+
+ dist_min2 = MAX_16;
+ for (i = 1; i < 3; i++)
+ {
+ dist = sub(lsp[i], lsp[i+1]);
+
+ if (sub(dist, dist_min2) < 0)
+ {
+ dist_min2 = dist;
+ }
+ }
+
+ if (sub(lsp[1], 32000) > 0)
+ {
+ dist_th = 600;
+ }
+ else if (sub(lsp[1], 30500) > 0)
+ {
+ dist_th = 800;
+ }
+ else
+ {
+ dist_th = 1100;
+ }
+
+ if (sub(dist_min1, 1500) < 0 ||
+ sub(dist_min2, dist_th) < 0)
+ {
+ st->count = add(st->count, 1);
+ }
+ else
+ {
+ st->count = 0;
+ }
+
+ // Need 12 consecutive frames to set the flag
+ if (sub(st->count, 12) >= 0)
+ {
+ st->count = 12;
+ return 1;
+ }
+ else
+ {
+ return 0;
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 check_lsp(tonStabState *st, /* i/o : State struct */
+ Word16 *lsp, /* i : unquantized LSP's */
+ Flag *pOverflow
+ )
+{
+ Word16 i;
+ Word16 dist;
+ Word16 dist_min1;
+ Word16 dist_min2;
+ Word16 dist_th;
+ Word16 *p_lsp = &lsp[3];
+ Word16 *p_lsp_1 = &lsp[4];
+
+ OSCL_UNUSED_ARG(pOverflow);
+ /* Check for a resonance: */
+ /* Find minimum distance between lsp[i] and lsp[i+1] */
+
+ dist_min1 = MAX_16;
+ for (i = 3; i < M - 2; i++)
+ {
+ dist = *(p_lsp++) - *(p_lsp_1++);
+
+ if (dist < dist_min1)
+ {
+ dist_min1 = dist;
+ }
+ }
+
+ dist_min2 = MAX_16;
+ p_lsp = &lsp[1];
+ p_lsp_1 = &lsp[2];
+
+ for (i = 1; i < 3; i++)
+ {
+ dist = *(p_lsp++) - *(p_lsp_1++);
+
+ if (dist < dist_min2)
+ {
+ dist_min2 = dist;
+ }
+ }
+
+ if (lsp[1] > 32000)
+ {
+ dist_th = 600;
+ }
+ else if (lsp[1] > 30500)
+ {
+ dist_th = 800;
+ }
+ else
+ {
+ dist_th = 1100;
+ }
+
+ if ((dist_min1 < 1500) || (dist_min2 < dist_th))
+ {
+ st->count++;
+ }
+ else
+ {
+ st->count = 0;
+ }
+
+ /* Need 12 consecutive frames to set the flag */
+ if (st->count >= 12)
+ {
+ st->count = 12;
+ return 1;
+ }
+ else
+ {
+ return 0;
+ }
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: check_gp_clipping
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to pointer to structure type tonStabState.
+ g_pitch = pitch gain of type Word16
+
+ Outputs:
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function: Check_Gp_Clipping()
+ Purpose: Verify that the sum of the last (N_FRAME+1) pitch
+ gains is under a certain threshold.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ton_stab.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+Word16 check_gp_clipping(tonStabState *st, // i/o : State struct
+ Word16 g_pitch // i : pitch gain
+)
+{
+ Word16 i, sum;
+
+ sum = shr(g_pitch, 3); // Division by 8
+ for (i = 0; i < N_FRAME; i++)
+ {
+ sum = add(sum, st->gp[i]);
+ }
+
+ if (sub(sum, GP_CLIP) > 0)
+ {
+ return 1;
+ }
+ else
+ {
+ return 0;
+ }
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 check_gp_clipping(tonStabState *st, /* i/o : State struct */
+ Word16 g_pitch, /* i : pitch gain */
+ Flag *pOverflow
+ )
+{
+ Word16 i;
+ Word16 sum;
+
+ sum = shr(g_pitch, 3, pOverflow); /* Division by 8 */
+ for (i = 0; i < N_FRAME; i++)
+ {
+ sum = add_16(sum, st->gp[i], pOverflow);
+ }
+
+ if (sum > GP_CLIP)
+ {
+ return 1;
+ }
+ else
+ {
+ return 0;
+ }
+}
+
+/****************************************************************************/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: update_gp_clipping
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state = pointer to pointer to structure type tonStabState.
+ g_pitch = pitch gain of type Word16
+
+ Outputs:
+ pOverflow = 1 if there is an overflow else it is zero.
+
+ Returns:
+ None.
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function: Update_Gp_Clipping()
+ Purpose: Update past pitch gain memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ ton_stab.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void update_gp_clipping(tonStabState *st, // i/o : State struct
+ Word16 g_pitch // i : pitch gain
+)
+{
+ Copy(&st->gp[1], &st->gp[0], N_FRAME-1);
+ st->gp[N_FRAME-1] = shr(g_pitch, 3);
+}
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void update_gp_clipping(tonStabState *st, /* i/o : State struct */
+ Word16 g_pitch, /* i : pitch gain */
+ Flag *pOverflow
+ )
+{
+ OSCL_UNUSED_ARG(pOverflow);
+ for (int i = 0; i < N_FRAME - 1; i++)
+ {
+ st->gp[i] = st->gp[i+1];
+ }
+ st->gp[N_FRAME-1] = g_pitch >> 3;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: ton_stab.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ File : ton_stab.h
+ Purpose : Tone stabilization routines
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef TON_STAB_H
+#define TON_STAB_H
+#define ton_stab_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "mode.h"
+#include "cnst.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ /* state variable */
+ typedef struct
+ {
+ /* counters */
+ Word16 count;
+ /* gain history Q11 */
+ Word16 gp[N_FRAME];
+ } tonStabState;
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 ton_stab_init(tonStabState **st);
+ /* initialize one instance of the pre processing state.
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to ton_stab in each call.
+ returns 0 on success
+ */
+
+ Word16 ton_stab_reset(tonStabState *st);
+ /* reset of pre processing state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+
+ void ton_stab_exit(tonStabState **st);
+ /* de-initialize pre processing state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ Word16 check_lsp(tonStabState *st, /* i/o : State struct */
+ Word16 *lsp, /* i : unquantized LSP's */
+ Flag *pOverflow
+ );
+
+ Word16 check_gp_clipping(tonStabState *st, /* i/o : State struct */
+ Word16 g_pitch, /* i : pitch gain */
+ Flag *pOverflow
+ );
+
+ void update_gp_clipping(tonStabState *st, /* i/o : State struct */
+ Word16 g_pitch, /* i : pitch gain */
+ Flag *pOverflow
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _TON_STAB_H_ */
+
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: vad1.cpp
+ Functions:
+
+------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "vad.h"
+#include "typedef.h"
+#include "shr.h"
+#include "basic_op.h"
+#include "cnst_vad.h"
+#include "oscl_mem.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: first_filter_stage
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ data -- array of type Word16 -- filter memory
+ in -- array of type Word16 -- input signal
+
+ Outputs:
+ data -- array of type Word16 -- filter memory
+ out -- array of type Word16 -- output values, every other
+ output is low-pass part and
+ other is high-pass part every
+
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Scale input down by one bit. Calculate 5th order
+ half-band lowpass/highpass filter pair with
+ decimation.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void first_filter_stage(
+ Word16 in[], /* i : input signal */
+ Word16 out[], /* o : output values, every other */
+ /* output is low-pass part and */
+ /* other is high-pass part every */
+ Word16 data[], /* i/o : filter memory */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 temp0;
+ Word16 temp1;
+ Word16 temp2;
+ Word16 temp3;
+ Word16 i;
+ Word16 data0;
+ Word16 data1;
+
+ data0 = data[0];
+ data1 = data[1];
+
+ for (i = 0; i < FRAME_LEN / 4; i++)
+ {
+// temp0 = mult(COEFF5_1, data0, pOverflow);
+ temp0 = (Word16)(((Word32)COEFF5_1 * data0) >> 15);
+ temp1 = in[4*i+0] >> 2;
+ temp0 = sub(temp1, temp0, pOverflow);
+
+// temp1 = mult(COEFF5_1, temp0, pOverflow);
+ temp1 = (Word16)(((Word32)COEFF5_1 * temp0) >> 15);
+ temp1 = add_16(data0, temp1, pOverflow);
+
+// temp3 = mult(COEFF5_2, data1, pOverflow);
+ temp3 = (Word16)(((Word32)COEFF5_2 * data1) >> 15);
+
+ temp2 = in[4*i+1] >> 2;
+
+ temp3 = sub(temp2, temp3, pOverflow);
+
+// temp2 = mult(COEFF5_2, temp3, pOverflow);
+ temp2 = (Word16)(((Word32)COEFF5_2 * temp3) >> 15);
+
+ temp2 = add_16(data1, temp2, pOverflow);
+
+ out[4*i+0] = add_16(temp1, temp2, pOverflow);
+ out[4*i+1] = sub(temp1, temp2, pOverflow);
+
+// temp1 = mult(COEFF5_1, temp0, pOverflow);
+ temp1 = (Word16)(((Word32)COEFF5_1 * temp0) >> 15);
+
+ temp2 = in[4*i+2] >> 2;
+ data0 = sub(temp2, temp1, pOverflow);
+
+// temp1 = mult(COEFF5_1, data0, pOverflow);
+ temp1 = (Word16)(((Word32)COEFF5_1 * data0) >> 15);
+
+ temp1 = add_16(temp0, temp1, pOverflow);
+
+// data1 = mult(COEFF5_2, temp3, pOverflow);
+ data1 = (Word16)(((Word32)COEFF5_2 * temp3) >> 15);
+ temp2 = in[4*i+3] >> 2;
+ data1 = sub(temp2, data1, pOverflow);
+
+// temp2 = mult(COEFF5_2, data1, pOverflow);
+ temp2 = (Word16)(((Word32)COEFF5_2 * data1) >> 15);
+ temp2 = add_16(temp3, temp2, pOverflow);
+
+ out[4*i+2] = add_16(temp1, temp2, pOverflow);
+ out[4*i+3] = sub(temp1, temp2, pOverflow);
+ }
+
+ data[0] = data0;
+ data[1] = data1;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: filter5
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ in0 -- array of type Word16 -- input values; output low-pass part
+ in1 -- array of type Word16 -- input values; output high-pass part
+ data -- array of type Word16 -- updated filter memory
+
+ Outputs:
+ in0 -- array of type Word16 -- input values; output low-pass part
+ in1 -- array of type Word16 -- input values; output high-pass part
+ data -- array of type Word16 -- updated filter memory
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Fifth-order half-band lowpass/highpass filter pair with
+ decimation.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void filter5(Word16 *in0, /* i/o : input values; output low-pass part */
+ Word16 *in1, /* i/o : input values; output high-pass part */
+ Word16 data[], /* i/o : updated filter memory */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+ )
+{
+ Word16 temp0;
+ Word16 temp1;
+ Word16 temp2;
+
+ temp0 = mult(COEFF5_1, data[0], pOverflow);
+ temp0 = sub(*in0, temp0, pOverflow);
+
+ temp1 = mult(COEFF5_1, temp0, pOverflow);
+ temp1 = add_16(data[0], temp1, pOverflow);
+ data[0] = temp0;
+
+ temp0 = mult(COEFF5_2, data[1], pOverflow);
+ temp0 = sub(*in1, temp0, pOverflow);
+
+ temp2 = mult(COEFF5_2, temp0, pOverflow);
+ temp2 = add_16(data[1], temp2, pOverflow);
+
+ data[1] = temp0;
+
+ temp0 = add_16(temp1, temp2, pOverflow);
+ *in0 = shr(temp0, 1, pOverflow);
+
+ temp0 = sub(temp1, temp2, pOverflow);
+ *in1 = shr(temp0, 1, pOverflow);
+}
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: filter3
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+ Inputs:
+ in0 -- array of type Word16 -- input values; output low-pass part
+ in1 -- array of type Word16 -- input values; output high-pass part
+ data -- array of type Word16 -- updated filter memory
+
+ Outputs:
+ in0 -- array of type Word16 -- input values; output low-pass part
+ in1 -- array of type Word16 -- input values; output high-pass part
+ data -- array of type Word16 -- updated filter memory
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Third-order half-band lowpass/highpass filter pair with
+ decimation.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void filter3(
+ Word16 *in0, /* i/o : input values; output low-pass part */
+ Word16 *in1, /* i/o : input values; output high-pass part */
+ Word16 *data, /* i/o : updated filter memory */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 temp1;
+ Word16 temp2;
+
+ temp1 = mult(COEFF3, *data, pOverflow);
+ temp1 = sub(*in1, temp1, pOverflow);
+
+ temp2 = mult(COEFF3, temp1, pOverflow);
+ temp2 = add_16(*data, temp2, pOverflow);
+
+ *data = temp1;
+
+ temp1 = sub(*in0, temp2, pOverflow);
+
+ *in1 = shr(temp1, 1, pOverflow);
+
+ temp1 = add_16(*in0, temp2, pOverflow);
+
+ *in0 = shr(temp1, 1, pOverflow);
+}
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: level_calculation
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ data -- array of type Word16 -- signal buffer
+ sub_level -- pointer to type Word16 -- level calculated at the end of
+ the previous frame
+
+ count1 -- Word16 -- number of samples to be counted
+ count2 -- Word16 -- number of samples to be counted
+ ind_m -- Word16 -- step size for the index of the data buffer
+ ind_a -- Word16 -- starting index of the data buffer
+ scale -- Word16 -- scaling for the level calculation
+
+ Outputs:
+ sub_level -- pointer to tyep Word16 -- level of signal calculated from the
+ last (count2 - count1) samples.
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ signal level
+
+ Global Variables Used:
+
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Calculate signal level in a sub-band. Level is calculated
+ by summing absolute values of the input data.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 level_calculation(
+ Word16 data[], /* i : signal buffer */
+ Word16 *sub_level, /* i : level calculate at the end of */
+ /* the previous frame */
+ /* o : level of signal calculated from the last */
+ /* (count2 - count1) samples */
+ Word16 count1, /* i : number of samples to be counted */
+ Word16 count2, /* i : number of samples to be counted */
+ Word16 ind_m, /* i : step size for the index of the data buffer */
+ Word16 ind_a, /* i : starting index of the data buffer */
+ Word16 scale, /* i : scaling for the level calculation */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word32 l_temp1;
+ Word32 l_temp2;
+ Word16 level;
+ Word16 i;
+
+ l_temp1 = 0L;
+
+ for (i = count1; i < count2; i++)
+ {
+ l_temp1 = L_mac(l_temp1, 1, abs_s(data[ind_m*i+ind_a]), pOverflow);
+ }
+
+ l_temp2 = L_add(l_temp1, L_shl(*sub_level, sub(16, scale, pOverflow), pOverflow), pOverflow);
+ *sub_level = (Word16)(L_shl(l_temp1, scale, pOverflow) >> 16);
+
+ for (i = 0; i < count1; i++)
+ {
+ l_temp2 = L_mac(l_temp2, 1, abs_s(data[ind_m*i+ind_a]), pOverflow);
+ }
+ level = (Word16)(L_shl(l_temp2, scale, pOverflow) >> 16);
+
+ return level;
+}
+
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: filter_bank
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ in -- array of type Word16 -- input frame
+
+ Outputs:
+ level -- array of type Word16 -- signal levels at each band
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Divides input signal into 9-bands and calculas level of
+ the signal in each band
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void filter_bank(
+ vadState1 *st, /* i/o : State struct */
+ Word16 in[], /* i : input frame */
+ Word16 level[], /* 0 : signal levels at each band */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 tmp_buf[FRAME_LEN];
+
+ /* calculate the filter bank */
+
+ first_filter_stage(in, tmp_buf, st->a_data5[0], pOverflow);
+
+ for (i = 0; i < FRAME_LEN / 4; i++)
+ {
+ filter5(&tmp_buf[4*i], &tmp_buf[4*i+2], st->a_data5[1], pOverflow);
+ filter5(&tmp_buf[4*i+1], &tmp_buf[4*i+3], st->a_data5[2], pOverflow);
+ }
+ for (i = 0; i < FRAME_LEN / 8; i++)
+ {
+ filter3(&tmp_buf[8*i+0], &tmp_buf[8*i+4], &st->a_data3[0], pOverflow);
+ filter3(&tmp_buf[8*i+2], &tmp_buf[8*i+6], &st->a_data3[1], pOverflow);
+ filter3(&tmp_buf[8*i+3], &tmp_buf[8*i+7], &st->a_data3[4], pOverflow);
+ }
+
+ for (i = 0; i < FRAME_LEN / 16; i++)
+ {
+ filter3(&tmp_buf[16*i+0], &tmp_buf[16*i+8], &st->a_data3[2], pOverflow);
+ filter3(&tmp_buf[16*i+4], &tmp_buf[16*i+12], &st->a_data3[3], pOverflow);
+ }
+
+ /* calculate levels in each frequency band */
+
+ /* 3000 - 4000 Hz*/
+ level[8] = level_calculation(tmp_buf, &st->sub_level[8], FRAME_LEN / 4 - 8,
+ FRAME_LEN / 4, 4, 1, 15, pOverflow);
+ /* 2500 - 3000 Hz*/
+ level[7] = level_calculation(tmp_buf, &st->sub_level[7], FRAME_LEN / 8 - 4,
+ FRAME_LEN / 8, 8, 7, 16, pOverflow);
+ /* 2000 - 2500 Hz*/
+ level[6] = level_calculation(tmp_buf, &st->sub_level[6], FRAME_LEN / 8 - 4,
+ FRAME_LEN / 8, 8, 3, 16, pOverflow);
+ /* 1500 - 2000 Hz*/
+ level[5] = level_calculation(tmp_buf, &st->sub_level[5], FRAME_LEN / 8 - 4,
+ FRAME_LEN / 8, 8, 2, 16, pOverflow);
+ /* 1000 - 1500 Hz*/
+ level[4] = level_calculation(tmp_buf, &st->sub_level[4], FRAME_LEN / 8 - 4,
+ FRAME_LEN / 8, 8, 6, 16, pOverflow);
+ /* 750 - 1000 Hz*/
+ level[3] = level_calculation(tmp_buf, &st->sub_level[3], FRAME_LEN / 16 - 2,
+ FRAME_LEN / 16, 16, 4, 16, pOverflow);
+ /* 500 - 750 Hz*/
+ level[2] = level_calculation(tmp_buf, &st->sub_level[2], FRAME_LEN / 16 - 2,
+ FRAME_LEN / 16, 16, 12, 16, pOverflow);
+ /* 250 - 500 Hz*/
+ level[1] = level_calculation(tmp_buf, &st->sub_level[1], FRAME_LEN / 16 - 2,
+ FRAME_LEN / 16, 16, 8, 16, pOverflow);
+ /* 0 - 250 Hz*/
+ level[0] = level_calculation(tmp_buf, &st->sub_level[0], FRAME_LEN / 16 - 2,
+ FRAME_LEN / 16, 16, 0, 16, pOverflow);
+}
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: update_cntrl
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ level -- array of type Word16 -- sub-band levels of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Control update of the background noise estimate.
+ Inputs : pitch: flags for pitch detection
+ stat_count: stationary counter
+ tone: flags indicating presence of a tone
+ complex: flags for complex detection
+ vadreg: intermediate VAD flags
+ Output : stat_count: stationary counter
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void update_cntrl(
+ vadState1 *st, /* i/o : State struct */
+ Word16 level[], /* i : sub-band levels of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 temp;
+ Word16 stat_rat;
+ Word16 exp;
+ Word16 num;
+ Word16 denom;
+ Word16 alpha;
+
+ /* handle highband complex signal input separately */
+ /* if ther has been highband correlation for some time */
+ /* make sure that the VAD update speed is low for a while */
+ if (st->complex_warning != 0)
+ {
+ if (st->stat_count < CAD_MIN_STAT_COUNT)
+ {
+ st->stat_count = CAD_MIN_STAT_COUNT;
+ }
+ }
+ /* NB stat_count is allowed to be decreased by one below again */
+ /* deadlock in speech is not possible unless the signal is very */
+ /* complex and need a high rate */
+
+ /* if fullband pitch or tone have been detected for a while, initialize stat_count */
+ if (((Word16)(st->pitch & 0x6000) == 0x6000) ||
+ ((Word16)(st->tone & 0x7c00) == 0x7c00))
+ {
+ st->stat_count = STAT_COUNT;
+ }
+ else
+ {
+ /* if 8 last vad-decisions have been "0", reinitialize stat_count */
+ if ((st->vadreg & 0x7f80) == 0)
+ {
+ st->stat_count = STAT_COUNT;
+ }
+ else
+ {
+ stat_rat = 0;
+ for (i = 0; i < COMPLEN; i++)
+ {
+ if (level[i] > st->ave_level[i])
+ {
+ num = level[i];
+ denom = st->ave_level[i];
+ }
+ else
+ {
+ num = st->ave_level[i];
+ denom = level[i];
+ }
+ /* Limit nimimum value of num and denom to STAT_THR_LEVEL */
+ if (num < STAT_THR_LEVEL)
+ {
+ num = STAT_THR_LEVEL;
+ }
+ if (denom < STAT_THR_LEVEL)
+ {
+ denom = STAT_THR_LEVEL;
+ }
+
+ exp = norm_s(denom);
+
+ denom = shl(denom, exp, pOverflow);
+
+ /* stat_rat = num/denom * 64 */
+ temp = shr(num, 1, pOverflow);
+ temp = div_s(temp, denom);
+
+ stat_rat = add_16(stat_rat, shr(temp, sub(8, exp, pOverflow), pOverflow), pOverflow);
+ }
+
+ /* compare stat_rat with a threshold and update stat_count */
+ if (stat_rat > STAT_THR)
+ {
+ st->stat_count = STAT_COUNT;
+ }
+ else
+ {
+ if ((st->vadreg & 0x4000) != 0)
+ {
+ if (st->stat_count != 0)
+ {
+ st->stat_count = sub(st->stat_count, 1, pOverflow);
+ }
+ }
+ }
+ }
+ }
+
+ /* Update average amplitude estimate for stationarity estimation */
+ alpha = ALPHA4;
+ if (st->stat_count == STAT_COUNT)
+ {
+ alpha = 32767;
+ }
+ else if ((st->vadreg & 0x4000) == 0)
+ {
+ alpha = ALPHA5;
+ }
+
+ for (i = 0; i < COMPLEN; i++)
+ {
+ temp = sub(level[i], st->ave_level[i], pOverflow);
+ temp = mult_r(alpha, temp, pOverflow);
+
+ st->ave_level[i] =
+ add_16(
+ st->ave_level[i],
+ temp,
+ pOverflow);
+ }
+}
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: hangover_addition
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ noise_level -- Word16 -- average level of the noise estimates
+ low_power -- Word16 -- flag power of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicato
+
+ Returns:
+ VAD_flag indicating final VAD decision (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : hangover_addition
+ Purpose : Add hangover for complex signal or after speech bursts
+ Inputs : burst_count: counter for the length of speech bursts
+ hang_count: hangover counter
+ vadreg: intermediate VAD decision
+ Outputs : burst_count: counter for the length of speech bursts
+ hang_count: hangover counter
+ Return value : VAD_flag indicating final VAD decision
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 hangover_addition(
+ vadState1 *st, /* i/o : State struct */
+ Word16 noise_level, /* i : average level of the noise */
+ /* estimates */
+ Word16 low_power, /* i : flag power of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 hang_len;
+ Word16 burst_len;
+
+ /*
+ Calculate burst_len and hang_len
+ burst_len: number of consecutive intermediate vad flags with "1"-decision
+ required for hangover addition
+ hang_len: length of the hangover
+ */
+
+ if (noise_level > HANG_NOISE_THR)
+ {
+ burst_len = BURST_LEN_HIGH_NOISE;
+ hang_len = HANG_LEN_HIGH_NOISE;
+ }
+ else
+ {
+ burst_len = BURST_LEN_LOW_NOISE;
+ hang_len = HANG_LEN_LOW_NOISE;
+ }
+
+ /* if the input power (pow_sum) is lower than a threshold, clear
+ counters and set VAD_flag to "0" "fast exit" */
+ if (low_power != 0)
+ {
+ st->burst_count = 0;
+ st->hang_count = 0;
+ st->complex_hang_count = 0;
+ st->complex_hang_timer = 0;
+ return 0;
+ }
+
+ if (st->complex_hang_timer > CVAD_HANG_LIMIT)
+ {
+ if (st->complex_hang_count < CVAD_HANG_LENGTH)
+ {
+ st->complex_hang_count = CVAD_HANG_LENGTH;
+ }
+ }
+
+ /* long time very complex signal override VAD output function */
+ if (st->complex_hang_count != 0)
+ {
+ st->burst_count = BURST_LEN_HIGH_NOISE;
+ st->complex_hang_count = sub(st->complex_hang_count, 1, pOverflow);
+ return 1;
+ }
+ else
+ {
+ /* let hp_corr work in from a noise_period indicated by the VAD */
+ if (((st->vadreg & 0x3ff0) == 0) &&
+ (st->corr_hp_fast > CVAD_THRESH_IN_NOISE))
+ {
+ return 1;
+ }
+ }
+
+ /* update the counters (hang_count, burst_count) */
+ if ((st->vadreg & 0x4000) != 0)
+ {
+ st->burst_count = add_16(st->burst_count, 1, pOverflow);
+
+ if (st->burst_count >= burst_len)
+ {
+ st->hang_count = hang_len;
+ }
+ return 1;
+ }
+ else
+ {
+ st->burst_count = 0;
+ if (st->hang_count > 0)
+ {
+ st->hang_count = sub(st->hang_count, 1, pOverflow);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: noise_estimate_update
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ level -- array of type Word16 -- sub-band levels of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Update of background noise estimate
+ Inputs : bckr_est: background noise estimate
+ pitch: flags for pitch detection
+ stat_count: stationary counter
+ Outputs : bckr_est: background noise estimate
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void noise_estimate_update(
+ vadState1 *st, /* i/o : State struct */
+ Word16 level[], /* i : sub-band levels of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 alpha_up;
+ Word16 alpha_down;
+ Word16 bckr_add;
+
+ /* Control update of bckr_est[] */
+ update_cntrl(st, level, pOverflow);
+
+ /* Choose update speed */
+ bckr_add = 2;
+
+ if (((0x7800 & st->vadreg) == 0) &&
+ ((st->pitch & 0x7800) == 0)
+ && (st->complex_hang_count == 0))
+ {
+ alpha_up = ALPHA_UP1;
+ alpha_down = ALPHA_DOWN1;
+ }
+ else
+ {
+ if ((st->stat_count == 0)
+ && (st->complex_hang_count == 0))
+ {
+ alpha_up = ALPHA_UP2;
+ alpha_down = ALPHA_DOWN2;
+ }
+ else
+ {
+ alpha_up = 0;
+ alpha_down = ALPHA3;
+ bckr_add = 0;
+ }
+ }
+
+ /* Update noise estimate (bckr_est) */
+ for (i = 0; i < COMPLEN; i++)
+ {
+ Word16 temp;
+
+ temp = sub(st->old_level[i], st->bckr_est[i], pOverflow);
+
+ if (temp < 0)
+ { /* update downwards*/
+ temp = mult_r(alpha_down, temp, pOverflow);
+ temp = add_16(st->bckr_est[i], temp, pOverflow);
+
+ st->bckr_est[i] = add_16(-2, temp, pOverflow);
+
+ /* limit minimum value of the noise estimate to NOISE_MIN */
+ if (st->bckr_est[i] < NOISE_MIN)
+ {
+ st->bckr_est[i] = NOISE_MIN;
+ }
+ }
+ else
+ { /* update upwards */
+ temp = mult_r(alpha_up, temp, pOverflow);
+ temp = add_16(st->bckr_est[i], temp, pOverflow);
+ st->bckr_est[i] = add_16(bckr_add, temp, pOverflow);
+
+ /* limit maximum value of the noise estimate to NOISE_MAX */
+ if (st->bckr_est[i] > NOISE_MAX)
+ {
+ st->bckr_est[i] = NOISE_MAX;
+ }
+ }
+ }
+
+ /* Update signal levels of the previous frame (old_level) */
+ for (i = 0; i < COMPLEN; i++)
+ {
+ st->old_level[i] = level[i];
+ }
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: complex_estimate_adapt
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ low_power -- Word16 -- very low level flag of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Function : complex_estimate_adapt
+ Purpose : Update/adapt of complex signal estimate
+ Inputs : low_power: low signal power flag
+ Outputs : st->corr_hp_fast: long term complex signal estimate
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static void complex_estimate_adapt(
+ vadState1 *st, /* i/o : VAD state struct */
+ Word16 low_power, /* i : very low level flag of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 alpha; /* Q15 */
+ Word32 L_tmp; /* Q31 */
+
+
+ /* adapt speed on own state */
+ if (st->best_corr_hp < st->corr_hp_fast) /* decrease */
+ {
+ if (st->corr_hp_fast < CVAD_THRESH_ADAPT_HIGH)
+ { /* low state */
+ alpha = CVAD_ADAPT_FAST;
+ }
+ else
+ { /* high state */
+ alpha = CVAD_ADAPT_REALLY_FAST;
+ }
+ }
+ else /* increase */
+ {
+ if (st->corr_hp_fast < CVAD_THRESH_ADAPT_HIGH)
+ {
+ alpha = CVAD_ADAPT_FAST;
+ }
+ else
+ {
+ alpha = CVAD_ADAPT_SLOW;
+ }
+ }
+
+ L_tmp = ((Word32)st->corr_hp_fast << 16);
+ L_tmp = L_msu(L_tmp, alpha, st->corr_hp_fast, pOverflow);
+ L_tmp = L_mac(L_tmp, alpha, st->best_corr_hp, pOverflow);
+ st->corr_hp_fast = pv_round(L_tmp, pOverflow); /* Q15 */
+
+ if (st->corr_hp_fast < CVAD_MIN_CORR)
+ {
+ st->corr_hp_fast = CVAD_MIN_CORR;
+ }
+
+ if (low_power != 0)
+ {
+ st->corr_hp_fast = CVAD_MIN_CORR;
+ }
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: complex_vad
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ low_power -- Word16 -- flag power of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+
+ Returns:
+ the complex background decision
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : complex background decision
+ Return value : the complex background decision
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 complex_vad(
+ vadState1 *st, /* i/o : VAD state struct */
+ Word16 low_power, /* i : flag power of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ st->complex_high = shr(st->complex_high, 1, pOverflow);
+ st->complex_low = shr(st->complex_low, 1, pOverflow);
+
+ if (low_power == 0)
+ {
+ if (st->corr_hp_fast > CVAD_THRESH_ADAPT_HIGH)
+ {
+ st->complex_high |= 0x4000;
+ }
+
+ if (st->corr_hp_fast > CVAD_THRESH_ADAPT_LOW)
+ {
+ st->complex_low |= 0x4000;
+ }
+ }
+
+ if (st->corr_hp_fast > CVAD_THRESH_HANG)
+ {
+ st->complex_hang_timer = add_16(st->complex_hang_timer, 1, pOverflow);
+ }
+ else
+ {
+ st->complex_hang_timer = 0;
+ }
+
+ return ((Word16)(st->complex_high & 0x7f80) == 0x7f80 ||
+ (Word16)(st->complex_low & 0x7fff) == 0x7fff);
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad_decision
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ level -- array of type Word16 -- sub-band levels of the input frame
+ pow_sum -- Word32 -- power of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ VAD_flag (Word16)
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Calculates VAD_flag
+ Inputs : bckr_est: background noise estimate
+ vadreg: intermediate VAD flags
+ Outputs : noise_level: average level of the noise estimates
+ vadreg: intermediate VAD flags
+ Return value : VAD_flag
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+static Word16 vad_decision(
+ vadState1 *st, /* i/o : State struct */
+ Word16 level[COMPLEN], /* i : sub-band levels of the input frame */
+ Word32 pow_sum, /* i : power of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 i;
+ Word16 snr_sum;
+ Word32 L_temp;
+ Word16 vad_thr;
+ Word16 temp;
+ Word16 noise_level;
+ Word16 low_power_flag;
+ Word16 temp1;
+
+ /*
+ Calculate squared sum of the input levels (level)
+ divided by the background noise components (bckr_est).
+ */
+ L_temp = 0;
+
+ for (i = 0; i < COMPLEN; i++)
+ {
+ Word16 exp;
+
+ exp = norm_s(st->bckr_est[i]);
+ temp = shl(st->bckr_est[i], exp, pOverflow);
+ temp = div_s(shr(level[i], 1, pOverflow), temp);
+ temp = shl(temp, sub(exp, UNIRSHFT - 1, pOverflow), pOverflow);
+ L_temp = L_mac(L_temp, temp, temp, pOverflow);
+ }
+
+ snr_sum = (Word16)(L_shl(L_temp, 6, pOverflow) >> 16);
+ snr_sum = mult(snr_sum, INV_COMPLEN, pOverflow);
+
+ /* Calculate average level of estimated background noise */
+ L_temp = 0;
+ for (i = 0; i < COMPLEN; i++)
+ {
+ L_temp = L_add(L_temp, st->bckr_est[i], pOverflow);
+ }
+
+ noise_level = (Word16)(L_shl(L_temp, 13, pOverflow) >> 16);
+
+ /* Calculate VAD threshold */
+ temp1 = sub(noise_level, VAD_P1, pOverflow);
+ temp1 = mult(VAD_SLOPE, temp1, pOverflow);
+ vad_thr = add_16(temp1, VAD_THR_HIGH, pOverflow);
+
+ if (vad_thr < VAD_THR_LOW)
+ {
+ vad_thr = VAD_THR_LOW;
+ }
+
+ /* Shift VAD decision register */
+ st->vadreg = shr(st->vadreg, 1, pOverflow);
+
+ /* Make intermediate VAD decision */
+ if (snr_sum > vad_thr)
+ {
+ st->vadreg |= 0x4000;
+ }
+ /* primary vad decsion made */
+
+ /* check if the input power (pow_sum) is lower than a threshold" */
+ if (L_sub(pow_sum, VAD_POW_LOW, pOverflow) < 0)
+ {
+ low_power_flag = 1;
+ }
+ else
+ {
+ low_power_flag = 0;
+ }
+
+ /* update complex signal estimate st->corr_hp_fast and hangover reset timer using */
+ /* low_power_flag and corr_hp_fast and various adaptation speeds */
+ complex_estimate_adapt(st, low_power_flag, pOverflow);
+
+ /* check multiple thresholds of the st->corr_hp_fast value */
+ st->complex_warning = complex_vad(st, low_power_flag, pOverflow);
+
+ /* Update speech subband vad background noise estimates */
+ noise_estimate_update(st, level, pOverflow);
+
+ /* Add speech and complex hangover and return speech VAD_flag */
+ /* long term complex hangover may be added */
+ st->speech_vad_decision = hangover_addition(st, noise_level, low_power_flag, pOverflow);
+
+ return (st->speech_vad_decision);
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad1_init
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state -- double pointer to type vadState1 -- pointer to memory to
+ be initialized.
+
+ Outputs:
+ state -- points to initalized area in memory.
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Allocates state memory and initializes state memory
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 vad1_init(vadState1 **state)
+{
+ vadState1* s;
+
+ if (state == (vadState1 **) NULL)
+ {
+ return -1;
+ }
+ *state = NULL;
+
+ /* allocate memory */
+ if ((s = (vadState1 *) oscl_malloc(sizeof(vadState1))) == NULL)
+ {
+ return -1;
+ }
+
+ vad1_reset(s);
+
+ *state = s;
+
+ return 0;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad1_reset
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose: Resets state memory to zero
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 vad1_reset(vadState1 *state)
+{
+ Word16 i;
+ Word16 j;
+
+ if (state == (vadState1 *) NULL)
+ {
+ return -1;
+ }
+
+ /* Initialize pitch detection variables */
+ state->oldlag_count = 0;
+ state->oldlag = 0;
+ state->pitch = 0;
+ state->tone = 0;
+
+ state->complex_high = 0;
+ state->complex_low = 0;
+ state->complex_hang_timer = 0;
+
+ state->vadreg = 0;
+
+ state->stat_count = 0;
+ state->burst_count = 0;
+ state->hang_count = 0;
+ state->complex_hang_count = 0;
+
+ /* initialize memory used by the filter bank */
+ for (i = 0; i < 3; i++)
+ {
+ for (j = 0; j < 2; j++)
+ {
+ state->a_data5[i][j] = 0;
+ }
+ }
+
+ for (i = 0; i < 5; i++)
+ {
+ state->a_data3[i] = 0;
+ }
+
+ /* initialize the rest of the memory */
+ for (i = 0; i < COMPLEN; i++)
+ {
+ state->bckr_est[i] = NOISE_INIT;
+ state->old_level[i] = NOISE_INIT;
+ state->ave_level[i] = NOISE_INIT;
+ state->sub_level[i] = 0;
+ }
+
+ state->best_corr_hp = CVAD_LOWPOW_RESET;
+
+ state->speech_vad_decision = 0;
+ state->complex_warning = 0;
+ state->sp_burst_count = 0;
+
+ state->corr_hp_fast = CVAD_LOWPOW_RESET;
+
+ return 0;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad1_exit
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ None
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ The memory used for state memory is freed
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad1_exit(vadState1 **state)
+{
+ if (state == NULL || *state == NULL)
+ return;
+
+ /* deallocate memory */
+ oscl_free(*state);
+ *state = NULL;
+
+ return;
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad_complex_detection_update
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ best_corr_hp -- Word16 -- best Corr
+ state -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ state -- pointer to type vadState1 -- State struct
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : update vad->bestCorr_hp complex signal feature state
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad_complex_detection_update(
+ vadState1 *st, /* i/o : State struct */
+ Word16 best_corr_hp) /* i : best Corr */
+{
+ st->best_corr_hp = best_corr_hp;
+}
+
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad_tone_detection
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ t0 -- Word32 -- autocorrelation maxima
+ t1 -- Word32 -- energy
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Set tone flag if pitch gain is high. This is used to detect
+ signaling tones and other signals with high pitch gain.
+ Inputs : tone: flags indicating presence of a tone
+ Outputs : tone: flags indicating presence of a tone
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad_tone_detection(
+ vadState1 *st, /* i/o : State struct */
+ Word32 t0, /* i : autocorrelation maxima */
+ Word32 t1, /* i : energy */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 temp;
+ /*
+ if (t0 > TONE_THR * t1)
+ set tone flag
+ */
+ temp = pv_round(t1, pOverflow);
+
+ if ((temp > 0) && (L_msu(t0, temp, TONE_THR, pOverflow) > 0))
+ {
+ st->tone |= 0x4000;
+ }
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad_tone_detection_update
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ one_lag_per_frame -- Word16 -- 1 if one open-loop lag is calculated per
+ each frame, otherwise 0
+ st -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Update the tone flag register. Tone flags are shifted right
+ by one bit. This function should be called from the speech
+ encoder before call to Vad_tone_detection() function.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad_tone_detection_update(
+ vadState1 *st, /* i/o : State struct */
+ Word16 one_lag_per_frame, /* i : 1 if one open-loop lag */
+ /* is calculated per each */
+ /* frame, otherwise 0 */
+ Flag *pOverflow /* o : Flags overflow */
+)
+{
+ /* Shift tone flags right by one bit */
+ st->tone = shr(st->tone, 1, pOverflow);
+
+ /* If open-loop lag is calculated only once in each frame, do extra update
+ and assume that the other tone flag of the frame is one. */
+ if (one_lag_per_frame != 0)
+ {
+ st->tone = shr(st->tone, 1, pOverflow);
+ st->tone |= 0x2000;
+ }
+}
+
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad_pitch_detection
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ T_op -- array of type Word16 -- speech encoder open loop lags
+ st -- pointer to type vadState1 -- State struct
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ None
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Test whether signal contains pitch or other periodic
+ component.
+ Return value : Boolean voiced / unvoiced decision in state variable
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+void vad_pitch_detection(
+ vadState1 *st, /* i/o : State struct */
+ Word16 T_op[], /* i : speech encoder open loop lags */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 lagcount;
+ Word16 i;
+ Word16 temp;
+
+ lagcount = 0;
+
+ for (i = 0; i < 2; i++)
+ {
+ temp = sub(st->oldlag, T_op[i], pOverflow);
+ temp = abs_s(temp);
+
+ if (temp < LTHRESH)
+ {
+ lagcount += 1;
+ }
+
+ /* Save the current LTP lag */
+ st->oldlag = T_op[i];
+ }
+
+ /* Make pitch decision.
+ Save flag of the pitch detection to the variable pitch.
+ */
+ st->pitch = shr(st->pitch, 1, pOverflow);
+
+ temp =
+ add_16(
+ st->oldlag_count,
+ lagcount,
+ pOverflow);
+
+ if (temp >= NTHRESH)
+ {
+ st->pitch |= 0x4000;
+ }
+
+ /* Update oldlagcount */
+ st->oldlag_count = lagcount;
+}
+
+/*
+------------------------------------------------------------------------------
+ FUNCTION NAME: vad1
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ st -- pointer to type vadState1 -- State struct
+ in_buf -- array of type Word16 -- samples of the input frame
+
+ Outputs:
+ st -- pointer to type vadState1 -- State struct
+ pOverflow -- pointer to type Flag -- overflow indicator
+
+ Returns:
+ VAD Decision, 1 = speech, 0 = noise
+
+ Global Variables Used:
+ None
+
+ Local Variables Needed:
+ None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Purpose : Main program for Voice Activity Detection (VAD) for AMR
+ Return value : VAD Decision, 1 = speech, 0 = noise
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ None
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ vad1.c, UMTS GSM AMR speech codec, R99 - Version 3.2.0, March 2, 2001
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ CAUTION [optional]
+ [State any special notes, constraints or cautions for users of this function]
+
+------------------------------------------------------------------------------
+*/
+
+Word16 vad1(
+ vadState1 *st, /* i/o : State struct */
+ Word16 in_buf[], /* i : samples of the input frame */
+ Flag *pOverflow /* o : Flag set when overflow occurs */
+)
+{
+ Word16 level[COMPLEN];
+ Word32 pow_sum;
+ Word16 i;
+
+ /* Calculate power of the input frame. */
+ pow_sum = 0L;
+
+ for (i = 0; i < FRAME_LEN; i++)
+ {
+ pow_sum = L_mac(pow_sum, in_buf[i-LOOKAHEAD], in_buf[i-LOOKAHEAD], pOverflow);
+ }
+
+ /*
+ If input power is very low, clear pitch flag of the current frame
+ */
+ if (L_sub(pow_sum, POW_PITCH_THR, pOverflow) < 0)
+ {
+ st->pitch = st->pitch & 0x3fff;
+ }
+
+ /*
+ If input power is very low, clear complex flag of the "current" frame
+ */
+ if (L_sub(pow_sum, POW_COMPLEX_THR, pOverflow) < 0)
+ {
+ st->complex_low = st->complex_low & 0x3fff;
+ }
+
+ /*
+ Run the filter bank which calculates signal levels at each band
+ */
+ filter_bank(st, in_buf, level, pOverflow);
+
+ return (vad_decision(st, level, pow_sum, pOverflow));
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: vad1.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions, prototype and structure
+ definitions needed by vad_1.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef vad_1_h
+#define vad_1_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+#include "cnst_vad.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+ /* state variable */
+ typedef struct
+ {
+
+ Word16 bckr_est[COMPLEN]; /* background noise estimate */
+ Word16 ave_level[COMPLEN]; /* averaged input components for stationary */
+ /* estimation */
+ Word16 old_level[COMPLEN]; /* input levels of the previous frame */
+ Word16 sub_level[COMPLEN]; /* input levels calculated at the end of
+ a frame (lookahead) */
+ Word16 a_data5[3][2]; /* memory for the filter bank */
+ Word16 a_data3[5]; /* memory for the filter bank */
+
+ Word16 burst_count; /* counts length of a speech burst */
+ Word16 hang_count; /* hangover counter */
+ Word16 stat_count; /* stationary counter */
+
+ /* Note that each of the following three variables (vadreg, pitch and tone)
+ holds 15 flags. Each flag reserves 1 bit of the variable. The newest
+ flag is in the bit 15 (assuming that LSB is bit 1 and MSB is bit 16). */
+ Word16 vadreg; /* flags for intermediate VAD decisions */
+ Word16 pitch; /* flags for pitch detection */
+ Word16 tone; /* flags for tone detection */
+ Word16 complex_high; /* flags for complex detection */
+ Word16 complex_low; /* flags for complex detection */
+
+ Word16 oldlag_count, oldlag; /* variables for pitch detection */
+
+ Word16 complex_hang_count; /* complex hangover counter, used by VAD */
+ Word16 complex_hang_timer; /* hangover initiator, used by CAD */
+
+ Word16 best_corr_hp; /* FIP filtered value Q15 */
+
+ Word16 speech_vad_decision; /* final decision */
+ Word16 complex_warning; /* complex background warning */
+
+ Word16 sp_burst_count; /* counts length of a speech burst incl */
+ Word16 corr_hp_fast; /* filtered value */
+ } vadState1;
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 vad1_init(vadState1 **st);
+ /* initialize one instance of the pre processing state.
+ Stores pointer to filter status struct in *st. This pointer has to
+ be passed to vad in each call.
+ returns 0 on success
+ */
+
+ Word16 vad1_reset(vadState1 *st);
+ /* reset of pre processing state (i.e. set state memory to zero)
+ returns 0 on success
+ */
+
+ void vad1_exit(vadState1 **st);
+ /* de-initialize pre processing state (i.e. free status struct)
+ stores NULL in *st
+ */
+
+ void vad_complex_detection_update(vadState1 *st, /* i/o : State struct */
+ Word16 best_corr_hp /* i : best Corr Q15 */
+ );
+
+ void vad_tone_detection(vadState1 *st, /* i/o : State struct */
+ Word32 t0, /* i : autocorrelation maxima */
+ Word32 t1, /* i : energy */
+ Flag *pOverflow
+ );
+
+ void vad_tone_detection_update(
+ vadState1 *st, /* i/o : State struct */
+ Word16 one_lag_per_frame, /* i : 1 if one open-loop lag is
+ calculated per each frame,
+ otherwise 0 */
+ Flag *pOverflow
+ );
+
+ void vad_pitch_detection(vadState1 *st, /* i/o : State struct */
+ Word16 lags[], /* i : speech encoder open loop lags */
+ Flag *pOverflow
+ );
+
+ Word16 vad1(vadState1 *st, /* i/o : State struct */
+ Word16 in_buf[], /* i : samples of the input frame
+ inbuf[159] is the very last sample,
+ incl lookahead */
+ Flag *pOverflow
+ );
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _VAD1_H_ */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.073
+ ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ Filename: vad2.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file contains all the constant definitions, prototype and structure
+ definitions needed by vad_2.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef vad_2_h
+#define vad_2_h "$Id $"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+#define YES 1
+#define NO 0
+#define ON 1
+#define OFF 0
+#define TRUE 1
+#define FALSE 0
+
+#define FRM_LEN 80
+#define DELAY 24
+#define FFT_LEN 128
+
+#define NUM_CHAN 16
+#define LO_CHAN 0
+#define HI_CHAN 15
+
+#define UPDATE_THLD 35
+#define HYSTER_CNT_THLD 6
+#define UPDATE_CNT_THLD 50
+
+#define SHIFT_STATE_0 0 /* channel energy scaled as 22,9 */
+#define SHIFT_STATE_1 1 /* channel energy scaled as 27,4 */
+
+#define NOISE_FLOOR_CHAN_0 512 /* 1.0 scaled as 22,9 */
+#define MIN_CHAN_ENRG_0 32 /* 0.0625 scaled as 22,9 */
+#define MIN_NOISE_ENRG_0 32 /* 0.0625 scaled as 22,9 */
+#define INE_NOISE_0 8192 /* 16.0 scaled as 22,9 */
+#define FRACTIONAL_BITS_0 9 /* used as input to fn10Log10() */
+
+#define NOISE_FLOOR_CHAN_1 16 /* 1.0 scaled as 27,4 */
+#define MIN_CHAN_ENRG_1 1 /* 0.0625 scaled as 27,4 */
+#define MIN_NOISE_ENRG_1 1 /* 0.0625 scaled as 27,4 */
+#define INE_NOISE_1 256 /* 16.0 scaled as 27,4 */
+#define FRACTIONAL_BITS_1 4 /* used as input to fn10Log10() */
+
+#define STATE_1_TO_0_SHIFT_R (FRACTIONAL_BITS_1-FRACTIONAL_BITS_0) /* state correction factor */
+#define STATE_0_TO_1_SHIFT_R (FRACTIONAL_BITS_0-FRACTIONAL_BITS_1) /* state correction factor */
+
+#define HIGH_ALPHA 29491 /* 0.9 scaled as 0,15 */
+#define LOW_ALPHA 22938 /* 0.7 scaled as 0,15 */
+#define ALPHA_RANGE (HIGH_ALPHA - LOW_ALPHA)
+#define DEV_THLD 7168 /* 28.0 scaled as 7,8 */
+
+#define PRE_EMP_FAC (-26214) /* -0.8 scaled as 0,15 */
+
+#define CEE_SM_FAC 18022 /* 0.55 scaled as 0,15 */
+#define ONE_MINUS_CEE_SM_FAC 14746 /* 0.45 scaled as 0,15 */
+
+#define CNE_SM_FAC 3277 /* 0.1 scaled as 0,15 */
+#define ONE_MINUS_CNE_SM_FAC 29491 /* 0.9 scaled as 0,15 */
+
+#define FFT_HEADROOM 2
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ typedef struct
+ {
+ Word16 pre_emp_mem;
+ Word16 update_cnt;
+ Word16 hyster_cnt;
+ Word16 last_update_cnt;
+ Word16 ch_enrg_long_db[NUM_CHAN]; /* scaled as 7,8 */
+
+ Word32 Lframe_cnt;
+ Word32 Lch_enrg[NUM_CHAN]; /* scaled as 22,9 or 27,4 */
+ Word32 Lch_noise[NUM_CHAN]; /* scaled as 22,9 */
+
+ Word16 last_normb_shift; /* last block norm shift count */
+
+ Word16 tsnr; /* total signal-to-noise ratio in dB (scaled as 7,8) */
+ Word16 hangover;
+ Word16 burstcount;
+ Word16 fupdate_flag; /* forced update flag from previous frame */
+ Word16 negSNRvar; /* Negative SNR variance (scaled as 7,8) */
+ Word16 negSNRbias; /* sensitivity bias from negative SNR variance (scaled as 15,0) */
+
+ Word16 shift_state; /* use 22,9 or 27,4 scaling for ch_enrg[] */
+
+ Word32 L_R0;
+ Word32 L_Rmax;
+ Flag LTP_flag; /* Use to indicate the the LTP gain is > LTP_THRESH */
+
+ } vadState2;
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+ Word16 vad2(Word16 *farray_ptr, vadState2 *st, Flag *pOverflow);
+ Word16 vad2_init(vadState2 **st);
+ Word16 vad2_reset(vadState2 *st);
+ void vad2_exit(vadState2 **state);
+
+ void r_fft(Word16 *farray_ptr, Flag *pOverflow);
+
+ void LTP_flag_update(vadState2 *st, Word16 mode, Flag *pOverflow);
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _VAD2_H_ */
+
+
--- /dev/null
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ src/agc2_amr_wb.cpp \
+ src/band_pass_6k_7k.cpp \
+ src/dec_acelp_2p_in_64.cpp \
+ src/dec_acelp_4p_in_64.cpp \
+ src/dec_alg_codebook.cpp \
+ src/dec_gain2_amr_wb.cpp \
+ src/decoder_amr_wb.cpp \
+ src/deemphasis_32.cpp \
+ src/dtx_decoder_amr_wb.cpp \
+ src/get_amr_wb_bits.cpp \
+ src/highpass_400hz_at_12k8.cpp \
+ src/highpass_50hz_at_12k8.cpp \
+ src/homing_amr_wb_dec.cpp \
+ src/interpolate_isp.cpp \
+ src/isf_extrapolation.cpp \
+ src/isp_az.cpp \
+ src/isp_isf.cpp \
+ src/lagconceal.cpp \
+ src/low_pass_filt_7k.cpp \
+ src/median5.cpp \
+ src/mime_io.cpp \
+ src/noise_gen_amrwb.cpp \
+ src/normalize_amr_wb.cpp \
+ src/oversamp_12k8_to_16k.cpp \
+ src/phase_dispersion.cpp \
+ src/pit_shrp.cpp \
+ src/pred_lt4.cpp \
+ src/preemph_amrwb_dec.cpp \
+ src/pvamrwb_math_op.cpp \
+ src/pvamrwbdecoder.cpp \
+ src/q_gain2_tab.cpp \
+ src/qisf_ns.cpp \
+ src/qisf_ns_tab.cpp \
+ src/qpisf_2s.cpp \
+ src/qpisf_2s_tab.cpp \
+ src/scale_signal.cpp \
+ src/synthesis_amr_wb.cpp \
+ src/voice_factor.cpp \
+ src/wb_syn_filt.cpp \
+ src/weight_amrwb_lpc.cpp
+
+
+LOCAL_MODULE := libpvamrwbdecoder
+
+LOCAL_CFLAGS := $(PV_CFLAGS)
+
+LOCAL_ARM_MODE := arm
+
+LOCAL_STATIC_LIBRARIES :=
+
+LOCAL_SHARED_LIBRARIES :=
+
+LOCAL_C_INCLUDES := \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/amr_wb/dec/src \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/amr_wb/dec/include \
+ $(PV_INCLUDES)
+
+LOCAL_COPY_HEADERS_TO := $(PV_COPY_HEADERS_TO)
+
+LOCAL_COPY_HEADERS := \
+ include/decoder_amr_wb.h \
+ include/pvamrwbdecoder_api.h
+
+include $(BUILD_STATIC_LIBRARY)
--- /dev/null
+# Get the current local path as the first operation
+LOCAL_PATH := $(call get_makefile_dir)
+
+# Clear out the variables used in the local makefiles
+include $(MK)/clear.mk
+
+TARGET := pvamrwbdecoder
+
+
+OPTIMIZE_FOR_PERFORMANCE_OVER_SIZE := true
+
+SRCDIR := ../../src
+INCSRCDIR := ../../include
+SRCS := agc2_amr_wb.cpp \
+ band_pass_6k_7k.cpp \
+ dec_acelp_2p_in_64.cpp \
+ dec_acelp_4p_in_64.cpp \
+ dec_alg_codebook.cpp \
+ dec_gain2_amr_wb.cpp \
+ decoder_amr_wb.cpp \
+ deemphasis_32.cpp \
+ dtx_decoder_amr_wb.cpp \
+ get_amr_wb_bits.cpp \
+ highpass_400hz_at_12k8.cpp \
+ highpass_50hz_at_12k8.cpp \
+ homing_amr_wb_dec.cpp \
+ interpolate_isp.cpp \
+ isf_extrapolation.cpp \
+ isp_az.cpp \
+ isp_isf.cpp \
+ lagconceal.cpp \
+ low_pass_filt_7k.cpp \
+ median5.cpp \
+ mime_io.cpp \
+ noise_gen_amrwb.cpp \
+ normalize_amr_wb.cpp \
+ oversamp_12k8_to_16k.cpp \
+ phase_dispersion.cpp \
+ pit_shrp.cpp \
+ pred_lt4.cpp \
+ preemph_amrwb_dec.cpp \
+ pvamrwb_math_op.cpp \
+ pvamrwbdecoder.cpp \
+ q_gain2_tab.cpp \
+ qisf_ns.cpp \
+ qisf_ns_tab.cpp \
+ qpisf_2s.cpp \
+ qpisf_2s_tab.cpp \
+ scale_signal.cpp \
+ synthesis_amr_wb.cpp \
+ voice_factor.cpp \
+ wb_syn_filt.cpp \
+ weight_amrwb_lpc.cpp
+
+
+HDRS := decoder_amr_wb.h pvamrwbdecoder_api.h
+
+include $(MK)/library.mk
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+//////////////////////////////////////////////////////////////////////////////////
+// //
+// File: decoder_amr_wb.h //
+// //
+//////////////////////////////////////////////////////////////////////////////////
+
+#ifndef _DECODER_AMR_WB_H
+#define _DECODER_AMR_WB_H
+
+#include "oscl_base.h"
+#include "pvamrwbdecoder_api.h"
+#include "pvgsmamrdecoderinterface.h"
+
+// CDecoder_AMR_WB
+class CDecoder_AMRInterface;
+class CDecoder_AMR_WB: public CDecoder_AMRInterface
+{
+ public:
+ OSCL_IMPORT_REF void ConstructL();
+ OSCL_IMPORT_REF static CDecoder_AMR_WB *NewL();
+ OSCL_IMPORT_REF virtual ~CDecoder_AMR_WB();
+
+ OSCL_IMPORT_REF virtual int32 StartL(tPVAmrDecoderExternal * pExt,
+ bool aAllocateInputBuffer = false,
+ bool aAllocateOutputBuffer = false);
+
+ OSCL_IMPORT_REF virtual int32 ExecuteL(tPVAmrDecoderExternal * pExt);
+
+ OSCL_IMPORT_REF virtual int32 ResetDecoderL(void);
+ OSCL_IMPORT_REF virtual void StopL();
+ OSCL_IMPORT_REF virtual void TerminateDecoderL();
+
+ private:
+ void *st; /* State structure */
+ void *pt_st;
+ int16 *ScratchMem;
+
+ uint8* iInputBuf;
+ int16* iInputSampleBuf;
+ int16* iOutputBuf;
+
+
+};
+
+
+#endif
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Name: pvamrwbdecoder_api.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Main header file for the Packet Video AMR Wide Band decoder library. The
+ constants, structures, and functions defined within this file, along with
+ a basic data types header file, is all that is needed to use and communicate
+ with the library. The internal data structures within the library are
+ purposely hidden.
+
+ ---* Need description of the input buffering. *-------
+
+ ---* Need an example of calling the library here *----
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (Normally header files do not have a reference section)
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef _PVAMRWBDECODER_API_H
+#define _PVAMRWBDECODER_API_H
+
+#include "oscl_base.h" /* Basic data types used within the lib */
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+#define AMR_WB_PCM_FRAME 320 /* Frame size at 16kHz */
+
+
+#define NBBITS_7k 132 /* 6.60k */
+#define NBBITS_9k 177 /* 8.85k */
+#define NBBITS_12k 253 /* 12.65k */
+#define NBBITS_14k 285 /* 14.25k */
+#define NBBITS_16k 317 /* 15.85k */
+#define NBBITS_18k 365 /* 18.25k */
+#define NBBITS_20k 397 /* 19.85k */
+#define NBBITS_23k 461 /* 23.05k */
+#define NBBITS_24k 477 /* 23.85k */
+
+#define NBBITS_SID 35
+
+#define KAMRWB_NB_BITS_MAX NBBITS_24k
+#define KAMRWB_NB_BYTES_MAX ((KAMRWB_NB_BITS_MAX>>3)+1)
+
+#define NUM_OF_MODES 10
+
+
+ static const int16 AMR_WB_COMPRESSED[NUM_OF_MODES] =
+ {
+ NBBITS_7k,
+ NBBITS_9k,
+ NBBITS_12k,
+ NBBITS_14k,
+ NBBITS_16k,
+ NBBITS_18k,
+ NBBITS_20k,
+ NBBITS_23k,
+ NBBITS_24k,
+ NBBITS_SID
+ };
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* PVMP4AUDIODECODER_API_H */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: agc2_amr_wb.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 * sig_in, (i) : postfilter input signal
+ int16 * sig_out, (i/o) : postfilter output signal
+ int16 l_trm (i) : subframe size
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Performs adaptive gain control
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwb_math_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void agc2_amr_wb(
+ int16 * sig_in, /* (i) : postfilter input signal */
+ int16 * sig_out, /* (i/o) : postfilter output signal */
+ int16 l_trm /* (i) : subframe size */
+)
+{
+
+ int16 i, exp;
+ int16 gain_in, gain_out, g0;
+ int32 s;
+
+ int16 temp;
+
+ /* calculate gain_out with exponent */
+
+ temp = sig_out[0] >> 2;
+ s = fxp_mul_16by16(temp, temp) << 1;
+ for (i = 1; i < l_trm; i++)
+ {
+ temp = sig_out[i] >> 2;
+ s = mac_16by16_to_int32(s, temp, temp);
+ }
+
+
+ if (s == 0)
+ {
+ return;
+ }
+ exp = normalize_amr_wb(s) - 1;
+ gain_out = amr_wb_round(s << exp);
+
+ /* calculate gain_in with exponent */
+
+ temp = sig_in[0] >> 2;
+ s = mul_16by16_to_int32(temp, temp);
+ for (i = 1; i < l_trm; i++)
+ {
+ temp = sig_in[i] >> 2;
+ s = mac_16by16_to_int32(s, temp, temp);
+ }
+
+
+ if (s == 0)
+ {
+ g0 = 0;
+ }
+ else
+ {
+ i = normalize_amr_wb(s);
+ gain_in = amr_wb_round(s << i);
+ exp -= i;
+
+ /*
+ * g0 = sqrt(gain_in/gain_out)
+ */
+
+ s = div_16by16(gain_out, gain_in);
+ s = shl_int32(s, 7); /* s = gain_out / gain_in */
+ s = shr_int32(s, exp); /* add exponent */
+
+ s = one_ov_sqrt(s);
+ g0 = amr_wb_round(shl_int32(s, 9));
+ }
+ /* sig_out(n) = gain(n) sig_out(n) */
+
+ for (i = 0; i < l_trm; i++)
+ {
+ sig_out[i] = extract_h(shl_int32(fxp_mul_16by16(sig_out[i], g0), 3));
+
+ }
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: band_pass_6k_7k.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 signal[], input signal / output is divided by 16
+ int16 lg, lenght of signal
+ int16 mem[] in/out: memory (size=30)
+ int16 x[] scratch mem ( size= 60)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ 15th order band pass 6kHz to 7kHz FIR filter.
+
+ frequency: 4kHz 5kHz 5.5kHz 6kHz 6.5kHz 7kHz 7.5kHz 8kHz
+ dB loss: -60dB -45dB -13dB -3dB 0dB -3dB -13dB -45dB
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+#include "pvamrwbdecoder_cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define L_FIR 30
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/* filter coefficients (gain=4.0) */
+
+const int16 fir_6k_7k[L_FIR] =
+{
+ -32, 47, 32, -27,
+ -369, 1122, -1421, 0,
+ 3798, -8880, 12349, -10984,
+ 3548, 7766, -18001,
+ 22118,
+ -18001, 7766, 3548, -10984,
+ 12349, -8880, 3798, 0,
+ -1421, 1122, -369, -27,
+ 32, 47
+};
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void band_pass_6k_7k_init(int16 mem[]) /* mem[30] */
+{
+ pv_memset((void *)mem, 0, L_FIR*sizeof(*mem));
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void band_pass_6k_7k(
+ int16 signal[], /* input: signal */
+ int16 lg, /* input: length of input */
+ int16 mem[], /* in/out: memory (size=30) */
+ int16 x[]
+)
+{
+ int16 i, j;
+ int32 L_tmp1;
+ int32 L_tmp2;
+ int32 L_tmp3;
+ int32 L_tmp4;
+
+ int16 *pt_sign = signal;
+
+ pv_memcpy((void *)x, (void *)mem, L_FIR*sizeof(*x));
+
+
+ for (i = 0; i < lg >> 2; i++)
+ {
+
+ x[(i<<2) + L_FIR ] = *(pt_sign) >> 2; /* gain of filter = 4 */
+ x[(i<<2) + L_FIR + 1] = *(pt_sign + 1) >> 2; /* gain of filter = 4 */
+ x[(i<<2) + L_FIR + 2] = *(pt_sign + 2) >> 2; /* gain of filter = 4 */
+ x[(i<<2) + L_FIR + 3] = *(pt_sign + 3) >> 2; /* gain of filter = 4 */
+
+ L_tmp1 = 0x00004000;
+ L_tmp2 = 0x00004000;
+ L_tmp3 = 0x00004000;
+ L_tmp4 = 0x00004000;
+
+ L_tmp1 -= ((int32)x[(i<<2)+L_FIR ] << 5);
+ L_tmp2 -= ((int32)x[(i<<2)+L_FIR+1] << 5);
+ L_tmp3 -= ((int32)x[(i<<2)+L_FIR+2] << 5);
+ L_tmp4 -= ((int32)x[(i<<2)+L_FIR+3] << 5);
+
+ L_tmp1 -= ((int32)x[(i<<2)] << 5);
+ L_tmp2 -= ((int32)x[(i<<2)+1] << 5);
+ L_tmp3 -= ((int32)x[(i<<2)+2] << 5);
+ L_tmp4 -= ((int32)x[(i<<2)+3] << 5);
+
+
+ for (j = 1; j < L_FIR - 1; j += 4)
+ {
+ int16 tmp1 = x[(i<<2)+j ];
+ int16 tmp2 = x[(i<<2)+j+1];
+ int16 tmp3 = x[(i<<2)+j+2];
+
+ L_tmp1 = fxp_mac_16by16(tmp1, fir_6k_7k[j ], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(tmp2, fir_6k_7k[j ], L_tmp2);
+ L_tmp1 = fxp_mac_16by16(tmp2, fir_6k_7k[j+1], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(tmp3, fir_6k_7k[j+1], L_tmp2);
+ L_tmp3 = fxp_mac_16by16(tmp3, fir_6k_7k[j ], L_tmp3);
+ L_tmp1 = fxp_mac_16by16(tmp3, fir_6k_7k[j+2], L_tmp1);
+
+ tmp1 = x[(i<<2)+j+3];
+ tmp2 = x[(i<<2)+j+4];
+
+ L_tmp2 = fxp_mac_16by16(tmp1, fir_6k_7k[j+2], L_tmp2);
+ L_tmp4 = fxp_mac_16by16(tmp1, fir_6k_7k[j ], L_tmp4);
+ L_tmp3 = fxp_mac_16by16(tmp1, fir_6k_7k[j+1], L_tmp3);
+ L_tmp1 = fxp_mac_16by16(tmp1, fir_6k_7k[j+3], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(tmp2, fir_6k_7k[j+3], L_tmp2);
+ L_tmp4 = fxp_mac_16by16(tmp2, fir_6k_7k[j+1], L_tmp4);
+ L_tmp3 = fxp_mac_16by16(tmp2, fir_6k_7k[j+2], L_tmp3);
+
+ tmp1 = x[(i<<2)+j+5];
+ tmp2 = x[(i<<2)+j+6];
+
+ L_tmp4 = fxp_mac_16by16(tmp1, fir_6k_7k[j+2], L_tmp4);
+ L_tmp3 = fxp_mac_16by16(tmp1, fir_6k_7k[j+3], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(tmp2, fir_6k_7k[j+3], L_tmp4);
+
+ }
+
+ L_tmp1 = fxp_mac_16by16(x[(i<<2)+j ], fir_6k_7k[L_FIR-1 ], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(x[(i<<2)+j+1], fir_6k_7k[L_FIR-1 ], L_tmp2);
+ L_tmp3 = fxp_mac_16by16(x[(i<<2)+j+2], fir_6k_7k[L_FIR-1 ], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(x[(i<<2)+j+3], fir_6k_7k[L_FIR-1 ], L_tmp4);
+
+
+ *(pt_sign++) = (int16)(L_tmp1 >> 15);
+ *(pt_sign++) = (int16)(L_tmp2 >> 15);
+ *(pt_sign++) = (int16)(L_tmp3 >> 15);
+ *(pt_sign++) = (int16)(L_tmp4 >> 15);
+
+ }
+
+ pv_memcpy((void *)mem, (void *)(x + lg), L_FIR*sizeof(*mem));
+
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_acelp_2p_in_64.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 index, (i): 12 bits index
+ int16 code[] (o): Q9 algebraic (fixed) codebook excitation
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ 12 bits algebraic codebook decoder.
+ 2 tracks x 32 positions per track = 64 samples.
+
+ 12 bits --> 2 pulses in a frame of 64 samples.
+
+ All pulses can have two (2) possible amplitudes: +1 or -1.
+ Each pulse can have 32 possible positions.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define L_CODE 64 /* codevector length */
+#define NB_TRACK 2 /* number of track */
+#define NB_POS 32 /* number of position */
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void dec_acelp_2p_in_64(
+ int16 index, /* (i): 12 bits index */
+ int16 code[] /* (o): Q9 algebraic (fixed) codebook excitation */
+)
+{
+ int16 i;
+
+ pv_memset(code, 0, L_CODE*sizeof(*code));
+
+ /* decode the positions and signs of pulses and build the codeword */
+
+ i = (index >> 5) & 0x003E;
+
+ if (((index >> 6) & NB_POS) == 0)
+ {
+ code[i] = 512;
+ }
+ else
+ {
+ code[i] = -512;
+ }
+
+ i = ((index & 0x001F) << 1) + 1;
+
+ if ((index & NB_POS) == 0)
+ {
+ code[i] = 512;
+ }
+ else
+ {
+ code[i] = -512;
+ }
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_acelp_4p_in_64.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 index[], (i) : index (20): 5+5+5+5 = 20 bits.
+ (i) : index (36): 9+9+9+9 = 36 bits.
+ (i) : index (44): 13+9+13+9 = 44 bits.
+ (i) : index (52): 13+13+13+13 = 52 bits.
+ (i) : index (64): 2+2+2+2+14+14+14+14 = 64 bits.
+ (i) : index (72): 10+2+10+2+10+14+10+14 = 72 bits.
+ (i) : index (88): 11+11+11+11+11+11+11+11 = 88 bits.
+ int16 nbbits, (i) : 20, 36, 44, 52, 64, 72 or 88 bits
+ int16 code[] (o) Q9: algebraic (fixed) codebook excitation
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ 20, 36, 44, 52, 64, 72, 88 bits algebraic codebook decoder.
+ 4 tracks x 16 positions per track = 64 samples.
+
+ 20 bits --> 4 pulses in a frame of 64 samples.
+ 36 bits --> 8 pulses in a frame of 64 samples.
+ 44 bits --> 10 pulses in a frame of 64 samples.
+ 52 bits --> 12 pulses in a frame of 64 samples.
+ 64 bits --> 16 pulses in a frame of 64 samples.
+ 72 bits --> 18 pulses in a frame of 64 samples.
+ 88 bits --> 24 pulses in a frame of 64 samples.
+
+ All pulses can have two (2) possible amplitudes: +1 or -1.
+ Each pulse can have sixteen (16) possible positions.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+
+#include "q_pulse.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define L_CODE 64 /* codevector length */
+#define NB_TRACK 4 /* number of track */
+#define NB_POS 16 /* number of position */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ void add_pulses(int16 pos[], int16 nb_pulse, int16 track, int16 code[]);
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void dec_acelp_4p_in_64(
+ int16 index[], /* (i) : index (20): 5+5+5+5 = 20 bits. */
+ /* (i) : index (36): 9+9+9+9 = 36 bits. */
+ /* (i) : index (44): 13+9+13+9 = 44 bits. */
+ /* (i) : index (52): 13+13+13+13 = 52 bits. */
+ /* (i) : index (64): 2+2+2+2+14+14+14+14 = 64 bits. */
+ /* (i) : index (72): 10+2+10+2+10+14+10+14 = 72 bits. */
+ /* (i) : index (88): 11+11+11+11+11+11+11+11 = 88 bits. */
+ int16 nbbits, /* (i) : 20, 36, 44, 52, 64, 72 or 88 bits */
+ int16 code[] /* (o) Q9: algebraic (fixed) codebook excitation */
+)
+{
+ int16 k, pos[6];
+ int32 L_index;
+ pv_memset(code, 0, L_CODE*sizeof(*code));
+
+ /* decode the positions and signs of pulses and build the codeword */
+
+
+ switch (nbbits)
+ {
+ case 20:
+ for (k = 0; k < NB_TRACK; k++)
+ {
+ L_index = index[k];
+ dec_1p_N1(L_index, 4, 0, pos);
+ add_pulses(pos, 1, k, code);
+ }
+ break;
+
+ case 36:
+ for (k = 0; k < NB_TRACK; k++)
+ {
+ L_index = index[k];
+ dec_2p_2N1(L_index, 4, 0, pos);
+ add_pulses(pos, 2, k, code);
+ }
+ break;
+ case 44:
+ for (k = 0; k < NB_TRACK - 2; k++)
+ {
+ L_index = index[k];
+ dec_3p_3N1(L_index, 4, 0, pos);
+ add_pulses(pos, 3, k, code);
+ }
+ for (k = 2; k < NB_TRACK; k++)
+ {
+ L_index = index[k];
+ dec_2p_2N1(L_index, 4, 0, pos);
+ add_pulses(pos, 2, k, code);
+ }
+ break;
+ case 52:
+ for (k = 0; k < NB_TRACK; k++)
+ {
+ L_index = index[k];
+ dec_3p_3N1(L_index, 4, 0, pos);
+ add_pulses(pos, 3, k, code);
+ }
+ break;
+ case 64:
+ for (k = 0; k < NB_TRACK; k++)
+ {
+ L_index = ((int32)index[k] << 14) + index[k + NB_TRACK];
+ dec_4p_4N(L_index, 4, 0, pos);
+ add_pulses(pos, 4, k, code);
+ }
+ break;
+ case 72:
+ for (k = 0; k < NB_TRACK - 2; k++)
+ {
+ L_index = ((int32)index[k] << 10) + index[k + NB_TRACK];
+ dec_5p_5N(L_index, 4, 0, pos);
+ add_pulses(pos, 5, k, code);
+ }
+ for (k = 2; k < NB_TRACK; k++)
+ {
+ L_index = ((int32)index[k] << 14) + index[k + NB_TRACK];
+ dec_4p_4N(L_index, 4, 0, pos);
+ add_pulses(pos, 4, k, code);
+ }
+ break;
+ case 88:
+ for (k = 0; k < NB_TRACK; k++)
+ {
+ L_index = ((int32)index[k] << 11) + index[k + NB_TRACK];
+ dec_6p_6N_2(L_index, 4, 0, pos);
+ add_pulses(pos, 6, k, code);
+ }
+ default:
+ break;
+ }
+
+
+}
+
+
+
+void add_pulses(int16 pos[], int16 nb_pulse, int16 track, int16 code[])
+{
+ int16 i, k;
+
+ for (k = 0; k < nb_pulse; k++)
+ {
+ /* i = ((pos[k] & (NB_POS-1))*NB_TRACK) + track; */
+ i = ((pos[k] & (NB_POS - 1)) << 2) + track;
+
+ if ((pos[k] & NB_POS) == 0)
+ {
+ code[i] += 512;
+ }
+ else
+ {
+ code[i] -= 512;
+ }
+ }
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_alg_codebook.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ decoding of algebraic codebook
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "q_pulse.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define NB_POS 16 /* pos in track, mask for sign bit */
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void dec_1p_N1(int32 index, int16 N, int16 offset, int16 pos[])
+{
+ int16 pos1;
+ int32 mask, i;
+
+ mask = ((1 << N) - 1);
+ /*-------------------------------------------------------*
+ * Decode 1 pulse with N+1 bits: *
+ *-------------------------------------------------------*/
+ pos1 = ((index & mask) + offset);
+
+ i = ((index >> N) & 1L); /* i = ((index >> N) & 1); */
+
+ if (i == 1)
+ {
+ pos1 += NB_POS;
+ }
+ pos[0] = pos1;
+
+}
+
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void dec_2p_2N1(int32 index, int16 N, int16 offset, int16 pos[])
+{
+ int16 pos1, pos2, tmp;
+ int32 mask, i;
+
+ mask = (int32)(sub_int16(shl_int16(1, N), 1)); /* mask = ((1<<N)-1); */
+ /*-------------------------------------------------------*
+ * Decode 2 pulses with 2*N+1 bits: *
+ *-------------------------------------------------------*/
+ /* pos1 = (((index >> N) & mask) + offset); */
+ pos1 = (int16)(add_int32((shr_int32(index, N) & mask), (int32)(offset)));
+ tmp = shl_int16(N, 1);
+ i = (index >> tmp) & 1L; /* i = (index >> (2*N)) & 1; */
+ pos2 = add_int16((int16)(index & mask), offset); /* pos2 = ((index & mask) + offset); */
+
+ if (pos2 < pos1) /* ((pos2 - pos1) < 0) */
+ {
+ if (i == 1)
+ { /* (i == 1) */
+ pos1 += NB_POS; /* pos1 += NB_POS; */
+ }
+ else
+ {
+ pos2 += NB_POS; /* pos2 += NB_POS; */
+ }
+ }
+ else
+ {
+ if (i == 1)
+ { /* (i == 1) */
+ pos1 += NB_POS; /* pos1 += NB_POS; */
+ pos2 += NB_POS; /* pos2 += NB_POS; */
+ }
+ }
+
+ pos[0] = pos1;
+ pos[1] = pos2;
+
+ return;
+}
+
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void dec_3p_3N1(int32 index, int16 N, int16 offset, int16 pos[])
+{
+ int16 j, tmp;
+ int32 mask, idx;
+
+ /*-------------------------------------------------------*
+ * Decode 3 pulses with 3*N+1 bits: *
+ *-------------------------------------------------------*/
+ tmp = sub_int16(shl_int16(N, 1), 1); /* mask = ((1<<((2*N)-1))-1); */
+
+ mask = ((1 << ((2 * N) - 1)) - 1);
+
+ idx = index & mask;
+ j = offset;
+ tmp = (N << 1) - 1;
+
+
+ if (((index >> tmp) & 1L) != 0L)
+ { /* if (((index >> ((2*N)-1)) & 1) == 1){ */
+ j += (1 << (N - 1)); /* j += (1<<(N-1)); */
+ }
+ dec_2p_2N1(idx, (int16)(N - 1), j, pos);
+
+ mask = ((1 << (N + 1)) - 1);
+ tmp = N << 1; /* idx = (index >> (2*N)) & mask; */
+ idx = (index >> tmp) & mask;
+
+ dec_1p_N1(idx, N, offset, pos + 2);
+
+ return;
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void dec_4p_4N1(int32 index, int16 N, int16 offset, int16 pos[])
+{
+ int16 j, tmp;
+ int32 mask, idx;
+
+ /*-------------------------------------------------------*
+ * Decode 4 pulses with 4*N+1 bits: *
+ *-------------------------------------------------------*/
+ tmp = (N << 1) - 1;
+ mask = (1L << tmp) - 1L;
+ idx = index & mask;
+ j = offset;
+ tmp = (N << 1) - 1;
+
+
+ if (((index >> tmp) & 1L) != 0L)
+ { /* (((index >> ((2*N)-1)) & 1) == 1) */
+ j += (1 << (N - 1)); /* j += (1<<(N-1)); */
+ }
+ dec_2p_2N1(idx, (int16)(N - 1), j, pos);
+
+
+ tmp = (N << 1) + 1; /* mask = ((1<<((2*N)+1))-1); */
+ mask = (1L << tmp) - 1L;
+ idx = (index >> (N << 1)) & mask; /* idx = (index >> (2*N)) & mask; */
+ dec_2p_2N1(idx, N, offset, pos + 2); /* dec_2p_2N1(idx, N, offset, pos+2); */
+
+ return;
+}
+
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void dec_4p_4N(int32 index, int16 N, int16 offset, int16 pos[])
+{
+ int16 j, n_1, tmp;
+
+ /*-------------------------------------------------------*
+ * Decode 4 pulses with 4*N bits: *
+ *-------------------------------------------------------*/
+
+ n_1 = N - 1;
+ j = offset + (1 << n_1); /* j = offset + (1 << n_1); */
+
+ tmp = (N << 2) - 2;
+
+ switch ((index >> tmp) & 3)
+ { /* ((index >> ((4*N)-2)) & 3) */
+ case 0:
+ tmp = (n_1 << 2) + 1;
+
+ if ((index >> tmp) & 1)
+ { /* (((index >> ((4*n_1)+1)) & 1) == 0) */
+ dec_4p_4N1(index, n_1, j, pos);
+ }
+ else
+ {
+ dec_4p_4N1(index, n_1, offset, pos);
+ }
+ break;
+ case 1:
+ tmp = (3 * n_1) + 1; /* dec_1p_N1((index>>((3*n_1)+1)), n_1, offset, pos) */
+ dec_1p_N1(index >> tmp, n_1, offset, pos);
+ dec_3p_3N1(index, n_1, j, pos + 1);
+ break;
+ case 2:
+ tmp = (n_1 << 1) + 1; /* dec_2p_2N1((index>>((2*n_1)+1)), n_1, offset, pos); */
+ dec_2p_2N1(index >> tmp, n_1, offset, pos);
+ dec_2p_2N1(index, n_1, j, pos + 2);
+ break;
+ case 3:
+ tmp = n_1 + 1; /* dec_3p_3N1((index>>(n_1+1)), n_1, offset, pos); */
+ dec_3p_3N1(index >> tmp, n_1, offset, pos);
+ dec_1p_N1(index, n_1, j, pos + 3);
+ break;
+ }
+ return;
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void dec_5p_5N(int32 index, int16 N, int16 offset, int16 pos[])
+{
+ int16 j, n_1, tmp;
+ int32 idx;
+
+ /*-------------------------------------------------------*
+ * Decode 5 pulses with 5*N bits: *
+ *-------------------------------------------------------*/
+
+ n_1 = (int16)(N - 1);
+ j = add_int16(offset, shl_int16(1, n_1)); /* j = offset + (1 << n_1); */
+ tmp = (N << 1) + 1; /* idx = (index >> ((2*N)+1)); */
+ idx = index >> tmp;
+ tmp = (5 * N) - 1; /* ((5*N)-1)) */
+
+
+ if ((index >> tmp) & 1) /* ((index >> ((5*N)-1)) & 1) */
+ {
+ dec_3p_3N1(idx, n_1, j, pos);
+ dec_2p_2N1(index, N, offset, pos + 3);
+ }
+ else
+ {
+ dec_3p_3N1(idx, n_1, offset, pos);
+ dec_2p_2N1(index, N, offset, pos + 3);
+ }
+ return;
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void dec_6p_6N_2(int32 index, int16 N, int16 offset, int16 pos[])
+{
+ int16 j, n_1, offsetA, offsetB;
+
+ n_1 = N - 1;
+ j = offset + (1 << n_1); /* j = offset + (1 << n_1); */
+
+
+ /* !! N and n_1 are constants -> it doesn't need to be operated by Basic Operators */
+
+ offsetA = offsetB = j;
+
+ if (((index >> (6*N - 5)) & 1L) == 0)
+ { /* if (((index >> ((6*N)-5)) & 1) == 0) */
+ offsetA = offset;
+ }
+ else
+ {
+ offsetB = offset;
+ }
+
+
+ switch ((index >> (6*N - 4)) & 3)
+ { /* (index >> ((6*N)-4)) & 3 */
+ case 0:
+ dec_5p_5N(index >> N, n_1, offsetA, pos); /* dec_5p_5N(index>>N, n_1, offsetA, pos); */
+ dec_1p_N1(index, n_1, offsetA, pos + 5);
+ break;
+ case 1:
+ dec_5p_5N(index >> N, n_1, offsetA, pos); /* dec_5p_5N(index>>N, n_1, offsetA, pos); */
+ dec_1p_N1(index, n_1, offsetB, pos + 5);
+ break;
+ case 2:
+ dec_4p_4N(index >> (2*n_1 + 1), n_1, offsetA, pos); /* dec_4p_4N(index>>((2*n_1)+1 ), n_1, offsetA, pos); */
+ dec_2p_2N1(index, n_1, offsetB, pos + 4);
+ break;
+ case 3:
+ dec_3p_3N1(index >> (3*n_1 + 1), n_1, offset, pos); /* dec_3p_3N1(index>>((3*n_1)+ 1), n_1, offset, pos); */
+ dec_3p_3N1(index, n_1, j, pos + 3);
+ break;
+ }
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dec_gain2_amr_wb.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 index, (i) : index of quantization.
+ int16 nbits, (i) : number of bits (6 or 7)
+ int16 code[], (i) Q9 : Innovative vector.
+ int16 L_subfr, (i) : Subframe lenght.
+ int16 * gain_pit, (o) Q14 : Pitch gain.
+ int32 * gain_cod, (o) Q16 : Code gain.
+ int16 bfi, (i) : bad frame indicator
+ int16 prev_bfi, (i) : Previous BF indicator
+ int16 state, (i) : State of BFH
+ int16 unusable_frame, (i) : UF indicator
+ int16 vad_hist, (i) : number of non-speech frames
+ int16 * mem (i/o) : static memory (4 words)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Decode the pitch and codebook gains
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwb_math_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+
+#include "qisf_ns.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define MEAN_ENER 30
+#define PRED_ORDER 4
+
+#define L_LTPHIST 5
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+const int16 pdown_unusable[7] = {32767, 31130, 29491, 24576, 7537, 1638, 328};
+const int16 cdown_unusable[7] = {32767, 16384, 8192, 8192, 8192, 4915, 3277};
+
+const int16 pdown_usable[7] = {32767, 32113, 31457, 24576, 7537, 1638, 328};
+const int16 cdown_usable[7] = {32767, 32113, 32113, 32113, 32113, 32113, 22938};
+
+
+/* MA prediction coeff ={0.5, 0.4, 0.3, 0.2} in Q13 */
+const int16 pred[PRED_ORDER] = {4096, 3277, 2458, 1638};
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+/* output :static memory (4 words) */
+void dec_gain2_amr_wb_init(int16 * mem)
+{
+
+ /* 4nd order quantizer energy predictor (init to -14.0 in Q10) */
+ mem[0] = -14336; /* past_qua_en[0] */
+ mem[1] = -14336; /* past_qua_en[1] */
+ mem[2] = -14336; /* past_qua_en[2] */
+ mem[3] = -14336; /* past_qua_en[3] */
+ /* 4 *past_gain_pit */
+ /* 5 *past_gain_code */
+ /* 6 *prev_gc */
+ /* next 5 pbuf[] */
+ /* next 5 gbuf[] */
+ /* next 5 pbuf2[] */
+ pv_memset((void *)&mem[4], 0, 18*sizeof(*mem));
+
+ mem[22] = 21845;
+
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void dec_gain2_amr_wb(
+ int16 index, /* (i) : index of quantization. */
+ int16 nbits, /* (i) : number of bits (6 or 7) */
+ int16 code[], /* (i) Q9 : Innovative vector. */
+ int16 L_subfr, /* (i) : Subframe lenght. */
+ int16 * gain_pit, /* (o) Q14 : Pitch gain. */
+ int32 * gain_cod, /* (o) Q16 : Code gain. */
+ int16 bfi, /* (i) : bad frame indicator */
+ int16 prev_bfi, /* (i) : Previous BF indicator */
+ int16 state, /* (i) : State of BFH */
+ int16 unusable_frame, /* (i) : UF indicator */
+ int16 vad_hist, /* (i) : number of non-speech frames */
+ int16 * mem /* (i/o) : static memory (4 words) */
+)
+{
+ const int16 *p;
+ int16 *past_gain_pit, *past_gain_code, *past_qua_en, *gbuf, *pbuf, *prev_gc;
+ int16 *pbuf2;
+ int16 i, tmp, exp, frac, gcode0, exp_gcode0, qua_ener, gcode_inov;
+ int16 tmp1, g_code;
+ int16 tmp2;
+ int32 L_tmp;
+
+ past_qua_en = mem;
+ past_gain_pit = mem + 4;
+ past_gain_code = mem + 5;
+ prev_gc = mem + 6;
+ pbuf = mem + 7;
+ gbuf = mem + 12;
+ pbuf2 = mem + 17;
+
+ /*
+ * Find energy of code and compute:
+ *
+ * L_tmp = 1.0 / sqrt(energy of code/ L_subfr)
+ */
+
+ L_tmp = Dot_product12(code, code, L_subfr, &exp);
+ exp -= 24; /* exp: -18 (code in Q9), -6 (/L_subfr) */
+
+ one_ov_sqrt_norm(&L_tmp, &exp);
+
+ gcode_inov = extract_h(shl_int32(L_tmp, exp - 3)); /* g_code_inov in Q12 */
+
+ /*
+ * Case of erasure.
+ */
+
+ if (bfi != 0)
+ {
+ tmp = median5(&pbuf[2]);
+ *past_gain_pit = tmp;
+
+ if (*past_gain_pit > 15565)
+ {
+ *past_gain_pit = 15565; /* 0.95 in Q14 */
+
+ }
+
+ if (unusable_frame != 0)
+ {
+ *gain_pit = mult_int16(pdown_unusable[state], *past_gain_pit);
+ }
+ else
+ {
+ *gain_pit = mult_int16(pdown_usable[state], *past_gain_pit);
+ }
+ tmp = median5(&gbuf[2]);
+
+ if (vad_hist > 2)
+ {
+ *past_gain_code = tmp;
+ }
+ else
+ {
+
+ if (unusable_frame != 0)
+ {
+ *past_gain_code = mult_int16(cdown_unusable[state], tmp);
+ }
+ else
+ {
+ *past_gain_code = mult_int16(cdown_usable[state], tmp);
+ }
+ }
+
+ /* update table of past quantized energies */
+
+ tmp = past_qua_en[3];
+ tmp1 = past_qua_en[2];
+ L_tmp = tmp;
+ L_tmp += tmp1;
+ past_qua_en[3] = tmp;
+ tmp = past_qua_en[1];
+ tmp1 = past_qua_en[0];
+ L_tmp += tmp;
+ L_tmp += tmp1;
+ past_qua_en[2] = tmp;
+ qua_ener = (int16)(L_tmp >> 3);
+ past_qua_en[1] = tmp1;
+
+
+ qua_ener -= 3072; /* -3 in Q10 */
+
+ if (qua_ener < -14336)
+ {
+ qua_ener = -14336; /* -14 in Q10 */
+ }
+
+ past_qua_en[0] = qua_ener;
+
+
+ for (i = 1; i < 5; i++)
+ {
+ gbuf[i - 1] = gbuf[i];
+ pbuf[i - 1] = pbuf[i];
+ }
+ gbuf[4] = *past_gain_code;
+ pbuf[4] = *past_gain_pit;
+
+
+ /* adjust gain according to energy of code */
+ /* past_gain_code(Q3) * gcode_inov(Q12) => Q16 */
+ *gain_cod = mul_16by16_to_int32(*past_gain_code, gcode_inov);
+
+ return;
+ }
+ /*
+ * Compute gcode0
+ * = Sum(i=0,1) pred[i]*past_qua_en[i] + mean_ener - ener_code
+ */
+
+ L_tmp = L_deposit_h(MEAN_ENER); /* MEAN_ENER in Q16 */
+ L_tmp = shl_int32(L_tmp, 8); /* From Q16 to Q24 */
+ L_tmp = mac_16by16_to_int32(L_tmp, pred[0], past_qua_en[0]); /* Q13*Q10 -> Q24 */
+ L_tmp = mac_16by16_to_int32(L_tmp, pred[1], past_qua_en[1]); /* Q13*Q10 -> Q24 */
+ L_tmp = mac_16by16_to_int32(L_tmp, pred[2], past_qua_en[2]); /* Q13*Q10 -> Q24 */
+ L_tmp = mac_16by16_to_int32(L_tmp, pred[3], past_qua_en[3]); /* Q13*Q10 -> Q24 */
+
+ gcode0 = extract_h(L_tmp); /* From Q24 to Q8 */
+
+ /*
+ * gcode0 = pow(10.0, gcode0/20)
+ * = pow(2, 3.321928*gcode0/20)
+ * = pow(2, 0.166096*gcode0)
+ */
+
+ L_tmp = ((int32)gcode0 * 5443) >> 7; /* *0.166096 in Q15 -> Q24 */
+
+ int32_to_dpf(L_tmp, &exp_gcode0, &frac); /* Extract exponant of gcode0 */
+
+ gcode0 = (int16)(power_of_2(14, frac)); /* Put 14 as exponant so that */
+ /* output of Pow2() will be: */
+ /* 16384 < Pow2() <= 32767 */
+ exp_gcode0 -= 14;
+
+ /* Read the quantized gains */
+
+ if (nbits == 6)
+ {
+ p = &t_qua_gain6b[index<<1];
+ }
+ else
+ {
+ p = &t_qua_gain7b[index<<1];
+ }
+ *gain_pit = *p++; /* selected pitch gain in Q14 */
+ g_code = *p++; /* selected code gain in Q11 */
+
+ L_tmp = mul_16by16_to_int32(g_code, gcode0); /* Q11*Q0 -> Q12 */
+ L_tmp = shl_int32(L_tmp, exp_gcode0 + 4); /* Q12 -> Q16 */
+
+ *gain_cod = L_tmp; /* gain of code in Q16 */
+
+ if (prev_bfi == 1)
+ {
+ L_tmp = mul_16by16_to_int32(*prev_gc, 5120); /* prev_gc(Q3) * 1.25(Q12) = Q16 */
+ /* if((*gain_cod > ((*prev_gc) * 1.25)) && (*gain_cod > 100.0)) */
+
+ if ((*gain_cod > L_tmp) && (*gain_cod > 6553600))
+ {
+ *gain_cod = L_tmp;
+ }
+ }
+ /* keep past gain code in Q3 for frame erasure (can saturate) */
+ *past_gain_code = amr_wb_round(shl_int32(*gain_cod, 3));
+ *past_gain_pit = *gain_pit;
+
+
+ *prev_gc = *past_gain_code;
+ tmp = gbuf[1];
+ tmp1 = pbuf[1];
+ tmp2 = pbuf2[1];
+ for (i = 1; i < 5; i++)
+ {
+ gbuf[i - 1] = tmp;
+ pbuf[i - 1] = tmp1;
+ pbuf2[i - 1] = tmp2;
+ tmp = gbuf[i];
+ tmp1 = pbuf[i];
+ tmp2 = pbuf2[i];
+ }
+ gbuf[4] = *past_gain_code;
+ pbuf[4] = *past_gain_pit;
+ pbuf2[4] = *past_gain_pit;
+
+
+ /* adjust gain according to energy of code */
+ int32_to_dpf(*gain_cod, &exp, &frac);
+ L_tmp = mul_32by16(exp, frac, gcode_inov);
+
+ *gain_cod = shl_int32(L_tmp, 3); /* gcode_inov in Q12 */
+
+
+ past_qua_en[3] = past_qua_en[2];
+ past_qua_en[2] = past_qua_en[1];
+ past_qua_en[1] = past_qua_en[0];
+
+ /*
+ * qua_ener = 20*log10(g_code)
+ * = 6.0206*log2(g_code)
+ * = 6.0206*(log2(g_codeQ11) - 11)
+ */
+ L_tmp = (int32)g_code;
+ amrwb_log_2(L_tmp, &exp, &frac);
+ exp -= 11;
+ L_tmp = mul_32by16(exp, frac, 24660); /* x 6.0206 in Q12 */
+
+ /* update table of past quantized energies */
+
+ past_qua_en[0] = (int16)(L_tmp >> 3); /* result in Q10 */
+
+ return;
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+//////////////////////////////////////////////////////////////////////////////////
+// //
+// File: decoder_amr_wb.cpp //
+// //
+//////////////////////////////////////////////////////////////////////////////////
+
+#include "decoder_amr_wb.h"
+#include "pvamrwbdecoder_api.h"
+#include "pvamrwbdecoder.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "dtx.h"
+
+
+// Use default DLL entry point
+#include "oscl_dll.h"
+#include "oscl_error_codes.h"
+#include "oscl_exception.h"
+#include "oscl_mem.h"
+
+
+#define KCAI_CODEC_INIT_FAILURE -1
+
+
+OSCL_DLL_ENTRY_POINT_DEFAULT()
+
+OSCL_EXPORT_REF CDecoder_AMR_WB *CDecoder_AMR_WB::NewL()
+{
+ CDecoder_AMR_WB *dec = new CDecoder_AMR_WB;
+ if (dec == NULL)
+ OSCL_LEAVE(OsclErrNoMemory);
+ else
+ dec->ConstructL();
+ return dec;
+}
+
+OSCL_EXPORT_REF void CDecoder_AMR_WB::ConstructL()
+{
+ st = NULL;
+ pt_st = NULL;
+ ScratchMem = NULL;
+ iInputBuf = NULL;
+ iOutputBuf = NULL;
+}
+
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_WB
+
+ ~CDecoder_AMR_WB
+
+ Empty decoder destructor.
+
+ Parameters: none
+
+ Return Values: none
+
+-----------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF CDecoder_AMR_WB::~CDecoder_AMR_WB()
+{
+ st = NULL;
+ ScratchMem = NULL;
+
+ if (pt_st != NULL)
+ {
+ OSCL_ARRAY_DELETE((uint8*)pt_st);
+ pt_st = NULL;
+ }
+
+ if (iInputBuf)
+ {
+ OSCL_ARRAY_DELETE(iInputBuf);
+ iInputBuf = NULL;
+ }
+
+ if (iOutputBuf)
+ {
+ OSCL_ARRAY_DELETE(iOutputBuf);
+ iOutputBuf = NULL;
+ }
+}
+
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_WB
+
+ StartL
+
+ Start decoder object. Initialize codec status.
+
+ Parameters: none
+
+ Return Values: status
+
+-----------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF int32 CDecoder_AMR_WB::StartL(tPVAmrDecoderExternal * pExt,
+ bool aAllocateInputBuffer,
+ bool aAllocateOutputBuffer)
+{
+
+ /*
+ * Allocate Input bitstream buffer
+ */
+ if (aAllocateInputBuffer)
+ {
+ iInputBuf = OSCL_ARRAY_NEW(uint8, KAMRWB_NB_BYTES_MAX);
+ if (iInputBuf == NULL)
+ {
+ return KCAI_CODEC_INIT_FAILURE;
+ }
+ }
+ else
+ {
+ iInputBuf = NULL;
+ }
+ pExt->pInputBuffer = iInputBuf;
+
+ iInputSampleBuf = OSCL_ARRAY_NEW(int16, KAMRWB_NB_BITS_MAX);
+ if (iInputSampleBuf == NULL)
+ {
+ return KCAI_CODEC_INIT_FAILURE;
+ }
+ pExt->pInputSampleBuffer = iInputSampleBuf;
+
+ /*
+ * Allocate Output PCM buffer
+ */
+ if (aAllocateOutputBuffer)
+ {
+ iOutputBuf = OSCL_ARRAY_NEW(int16, AMR_WB_PCM_FRAME);
+
+ if (iOutputBuf == NULL)
+ {
+ return KCAI_CODEC_INIT_FAILURE;
+ }
+ }
+ else
+ {
+ iOutputBuf = NULL;
+ }
+ pExt->pOutputBuffer = iOutputBuf;
+
+ pExt->samplingRate = 16000;
+ pExt->desiredChannels = 1;
+
+ pExt->reset_flag = 0;
+ pExt->reset_flag_old = 1;
+ pExt->mode_old = 0;
+ pExt->rx_state.prev_ft = RX_SPEECH_GOOD;
+ pExt->rx_state.prev_mode = 0;
+
+
+ int32 memreq = pvDecoder_AmrWbMemRequirements();
+
+ pt_st = OSCL_ARRAY_NEW(uint8, memreq);
+
+ if (pt_st == 0)
+ {
+ return(KCAI_CODEC_INIT_FAILURE);
+ }
+
+ pvDecoder_AmrWb_Init(&st, pt_st, &ScratchMem);
+
+ return 0;
+}
+
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_WB
+
+ ExecuteL
+
+ Execute decoder object. Read one encoded speech frame from the input
+ stream, decode it and write the decoded frame to output stream.
+
+ Parameters:
+
+ Return Values: status
+
+
+-----------------------------------------------------------------------------
+*/
+
+
+OSCL_EXPORT_REF int32 CDecoder_AMR_WB::ExecuteL(tPVAmrDecoderExternal * pExt)
+{
+
+ if (pExt->input_format == MIME_IETF) /* MIME/storage file format */
+ {
+ mime_unsorting(pExt->pInputBuffer,
+ pExt->pInputSampleBuffer,
+ &pExt->frame_type,
+ &pExt->mode,
+ pExt->quality,
+ &pExt->rx_state);
+ }
+
+
+ if ((pExt->frame_type == RX_NO_DATA) | (pExt->frame_type == RX_SPEECH_LOST))
+ {
+ pExt->mode = pExt->mode_old;
+ pExt->reset_flag = 0;
+ }
+ else
+ {
+ pExt->mode_old = pExt->mode;
+
+ /* if homed: check if this frame is another homing frame */
+ if (pExt->reset_flag_old == 1)
+ {
+ /* only check until end of first subframe */
+ pExt->reset_flag = pvDecoder_AmrWb_homing_frame_test_first(pExt->pInputSampleBuffer,
+ pExt->mode);
+ }
+ }
+
+ /* produce encoder homing frame if homed & input=decoder homing frame */
+ if ((pExt->reset_flag != 0) && (pExt->reset_flag_old != 0))
+ {
+ /* set homing sequence ( no need to decode anything */
+
+ for (int16 i = 0; i < AMR_WB_PCM_FRAME; i++)
+ {
+ pExt->pOutputBuffer[i] = EHF_MASK;
+ }
+ }
+ else
+ {
+ pExt->status = pvDecoder_AmrWb(pExt->mode,
+ pExt->pInputSampleBuffer,
+ pExt->pOutputBuffer,
+ &pExt->frameLength,
+ st,
+ pExt->frame_type,
+ ScratchMem);
+ }
+
+ for (int16 i = 0; i < AMR_WB_PCM_FRAME; i++) /* Delete the 2 LSBs (14-bit output) */
+ {
+ pExt->pOutputBuffer[i] &= 0xfffC;
+ }
+
+
+ /* if not homed: check whether current frame is a homing frame */
+ if (pExt->reset_flag_old == 0)
+ {
+ /* check whole frame */
+ pExt->reset_flag = pvDecoder_AmrWb_homing_frame_test(pExt->pInputSampleBuffer,
+ pExt->mode);
+ }
+ /* reset decoder if current frame is a homing frame */
+ if (pExt->reset_flag != 0)
+ {
+ pvDecoder_AmrWb_Reset(st, 1);;
+ }
+ pExt->reset_flag_old = pExt->reset_flag;
+
+ return pExt->status;
+
+}
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_WB
+
+ StopL
+
+ Stop decoder object.
+
+ Parameters: none
+
+ Return Values: none
+
+-----------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF void CDecoder_AMR_WB::StopL()
+{
+}
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_WB
+
+ ResetDecoderL
+
+ Stop decoder object. Reset decoder.
+
+ Parameters: none
+
+ Return Values: status
+
+-----------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF int32 CDecoder_AMR_WB::ResetDecoderL()
+{
+ pvDecoder_AmrWb_Reset(st, 1);
+ return 0;
+}
+
+
+/*
+-----------------------------------------------------------------------------
+
+ CDecoder_AMR_WB
+
+ TerminateDecoderL
+
+ Stop decoder object. close decoder.
+
+ Parameters: none
+
+ Return Values: none
+
+-----------------------------------------------------------------------------
+*/
+OSCL_EXPORT_REF void CDecoder_AMR_WB::TerminateDecoderL()
+{
+ st = NULL;
+ ScratchMem = NULL;
+
+ if (pt_st != NULL)
+ {
+ OSCL_ARRAY_DELETE((uint8*)pt_st);
+ pt_st = NULL;
+ }
+
+ if (iInputBuf)
+ {
+ OSCL_ARRAY_DELETE(iInputBuf);
+ iInputBuf = NULL;
+ }
+
+ if (iOutputBuf)
+ {
+ OSCL_ARRAY_DELETE(iOutputBuf);
+ iOutputBuf = NULL;
+ }
+
+ if (iInputSampleBuf != NULL)
+ {
+ OSCL_ARRAY_DELETE(iInputSampleBuf);
+ iInputSampleBuf = NULL;
+ }
+
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: deemphasis_32.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 x_hi[], (i) : input signal (bit31..16)
+ int16 x_lo[], (i) : input signal (bit15..4)
+ int16 y[], (o) : output signal (x16)
+ int16 mu, (i) Q15 : deemphasis factor
+ int16 L, (i) : vector size
+ int16 * mem (i/o) : memory (y[-1])
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ 32-bits filtering through 1/(1-mu z^-1)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ Deemphasis H(z) = 1/(1 - 0.68z^(-1)) where mu = 0.67999 in Q15
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwb_math_op.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void deemphasis_32(
+ int16 x_hi[], /* (i) : input signal (bit31..16) */
+ int16 x_lo[], /* (i) : input signal (bit15..4) */
+ int16 y[], /* (o) : output signal (x16) */
+ int16 mu, /* (i) Q15 : deemphasis factor */
+ int16 L, /* (i) : vector size */
+ int16 * mem /* (i/o) : memory (y[-1]) */
+)
+{
+ int16 i;
+ int32 L_tmp;
+ int16 lo, hi;
+
+ L_tmp = ((int32)x_hi[0]) << 16;
+ L_tmp += ((int32)x_lo[0]) << 4;
+ L_tmp = shl_int32(L_tmp, 3);
+
+ L_tmp = fxp_mac_16by16(*mem, mu, L_tmp),
+
+ L_tmp = shl_int32(L_tmp, 1); /* saturation can occur here */
+ y[0] = amr_wb_round(L_tmp);
+
+ lo = x_lo[1];
+ hi = x_hi[1];
+ for (i = 1; i < L - 1; i++)
+ {
+ L_tmp = ((int32)hi) << 16;
+ L_tmp += ((int32)lo) << 4;
+ L_tmp = shl_int32(L_tmp, 3);
+ L_tmp = fxp_mac_16by16(y[i - 1], mu, L_tmp),
+ L_tmp = shl_int32(L_tmp, 1); /* saturation can occur here */
+ y[i] = amr_wb_round(L_tmp);
+ lo = x_lo[i+1];
+ hi = x_hi[i+1];
+ }
+ L_tmp = ((int32)hi) << 16;
+ L_tmp += ((int32)lo) << 4;
+ L_tmp = shl_int32(L_tmp, 3);
+ L_tmp = fxp_mac_16by16(y[i - 1], mu, L_tmp),
+ L_tmp = shl_int32(L_tmp, 1); /* saturation can occur here */
+ y[i] = amr_wb_round(L_tmp);
+
+ *mem = y[L - 1];
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./cpp/include/dtx.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+ Static memory, constants and frametypes for the DTX
+------------------------------------------------------------------------------
+*/
+#ifndef DTX_H
+#define DTX_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES AND SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+#define DTX_MAX_EMPTY_THRESH 50
+#define DTX_HIST_SIZE 8
+#define DTX_HIST_SIZE_MIN_ONE 7
+#define DTX_ELAPSED_FRAMES_THRESH (24 + 7 -1)
+#define DTX_HANG_CONST 7 /* yields eight frames of SP HANGOVER */
+#define INV_MED_THRESH 14564
+#define ISF_GAP 128 /* 50 */
+#define ONE_MINUS_ISF_GAP 16384 - ISF_GAP
+
+#define ISF_GAP 128
+#define ISF_DITH_GAP 448
+#define ISF_FACTOR_LOW 256
+#define ISF_FACTOR_STEP 2
+
+#define GAIN_THR 180
+#define GAIN_FACTOR 75
+
+ typedef struct
+ {
+ int16 isf_hist[M * DTX_HIST_SIZE];
+ int16 log_en_hist[DTX_HIST_SIZE];
+ int16 hist_ptr;
+ int16 log_en_index;
+ int16 cng_seed;
+
+ /* DTX handler stuff */
+ int16 dtxHangoverCount;
+ int16 decAnaElapsedCount;
+ int32 D[28];
+ int32 sumD[DTX_HIST_SIZE];
+ } dtx_encState;
+
+#define SPEECH 0
+#define DTX 1
+#define DTX_MUTE 2
+
+#define TX_SPEECH 0
+#define TX_SID_FIRST 1
+#define TX_SID_UPDATE 2
+#define TX_NO_DATA 3
+
+#define RX_SPEECH_GOOD 0
+#define RX_SPEECH_PROBABLY_DEGRADED 1
+#define RX_SPEECH_LOST 2
+#define RX_SPEECH_BAD 3
+#define RX_SID_FIRST 4
+#define RX_SID_UPDATE 5
+#define RX_SID_BAD 6
+#define RX_NO_DATA 7
+
+ /*****************************************************************************
+ *
+ * DEFINITION OF DATA TYPES
+ *****************************************************************************/
+
+ typedef struct
+ {
+ int16 since_last_sid;
+ int16 true_sid_period_inv;
+ int16 log_en;
+ int16 old_log_en;
+ int16 level;
+ int16 isf[M];
+ int16 isf_old[M];
+ int16 cng_seed;
+
+ int16 isf_hist[M * DTX_HIST_SIZE];
+ int16 log_en_hist[DTX_HIST_SIZE];
+ int16 hist_ptr;
+
+ int16 dtxHangoverCount;
+ int16 decAnaElapsedCount;
+
+ int16 sid_frame;
+ int16 valid_data;
+ int16 dtxHangoverAdded;
+
+ int16 dtxGlobalState; /* contains previous state */
+ /* updated in main decoder */
+
+ int16 data_updated; /* marker to know if CNI data is ever renewed */
+
+ int16 dither_seed;
+ int16 CN_dith;
+
+ } dtx_decState;
+
+ int16 dtx_enc_init(dtx_encState ** st, int16 isf_init[]);
+ int16 dtx_enc_reset(dtx_encState * st, int16 isf_init[]);
+ void dtx_enc_exit(dtx_encState ** st);
+
+ int16 dtx_enc(
+ dtx_encState * st, /* i/o : State struct */
+ int16 isf[M], /* o : CN ISF vector */
+ int16 * exc2, /* o : CN excitation */
+ int16 ** prms
+ );
+
+ int16 dtx_buffer(
+ dtx_encState * st, /* i/o : State struct */
+ int16 isf_new[], /* i : isf vector */
+ int32 enr, /* i : residual energy (in L_FRAME) */
+ int16 codec_mode
+ );
+
+ void tx_dtx_handler(dtx_encState * st, /* i/o : State struct */
+ int16 vad_flag, /* i : vad decision */
+ int16 * usedMode /* i/o : mode changed or not */
+ );
+
+ void Qisf_ns(
+ int16 * isf1, /* input : ISF in the frequency domain (0..0.5) */
+ int16 * isf_q, /* output: quantized ISF */
+ int16 * indice /* output: quantization indices */
+ );
+
+
+ int16 dtx_dec_amr_wb_reset(dtx_decState * st, const int16 isf_init[]);
+
+ int16 dtx_dec_amr_wb(
+ dtx_decState * st, /* i/o : State struct */
+ int16 * exc2, /* o : CN excitation */
+ int16 new_state, /* i : New DTX state */
+ int16 isf[], /* o : CN ISF vector */
+ int16 ** prms
+ );
+
+ void dtx_dec_amr_wb_activity_update(
+ dtx_decState * st,
+ int16 isf[],
+ int16 exc[]);
+
+
+ int16 rx_amr_wb_dtx_handler(
+ dtx_decState * st, /* i/o : State struct */
+ int16 frame_type /* i : Frame type */
+ );
+
+ void Disf_ns(
+ int16 * indice, /* input: quantization indices */
+ int16 * isf_q /* input : ISF in the frequency domain (0..0.5) */
+ );
+
+ void aver_isf_history(
+ int16 isf_old[],
+ int16 indices[],
+ int32 isf_aver[]
+ );
+ void find_frame_indices(
+ int16 isf_old_tx[],
+ int16 indices[],
+ dtx_encState * st
+ );
+
+ int16 dithering_control(
+ dtx_encState * st
+ );
+ void CN_dithering(
+ int16 isf[M],
+ int32 * L_log_en_int,
+ int16 * dither_seed
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* DTX_H */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: dtx_decoder_amr_wb.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ DTX functions
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwb_math_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h" /* prototype of functions */
+#include "get_amr_wb_bits.h"
+#include "dtx.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+/*
+ * Function : dtx_dec_amr_wb_reset
+ */
+int16 dtx_dec_amr_wb_reset(dtx_decState * st, const int16 isf_init[])
+{
+ int16 i;
+
+
+ if (st == (dtx_decState *) NULL)
+ {
+ /* dtx_dec_amr_wb_reset invalid parameter */
+ return (-1);
+ }
+ st->since_last_sid = 0;
+ st->true_sid_period_inv = (1 << 13); /* 0.25 in Q15 */
+
+ st->log_en = 3500;
+ st->old_log_en = 3500;
+ /* low level noise for better performance in DTX handover cases */
+
+ st->cng_seed = RANDOM_INITSEED;
+
+ st->hist_ptr = 0;
+
+ /* Init isf_hist[] and decoder log frame energy */
+ pv_memcpy((void *)st->isf, (void *)isf_init, M*sizeof(*isf_init));
+
+ pv_memcpy((void *)st->isf_old, (void *)isf_init, M*sizeof(*isf_init));
+
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ pv_memcpy((void *)&st->isf_hist[i * M], (void *)isf_init, M*sizeof(*isf_init));
+ st->log_en_hist[i] = st->log_en;
+ }
+
+ st->dtxHangoverCount = DTX_HANG_CONST;
+ st->decAnaElapsedCount = 32767;
+
+ st->sid_frame = 0;
+ st->valid_data = 0;
+ st->dtxHangoverAdded = 0;
+
+ st->dtxGlobalState = SPEECH;
+ st->data_updated = 0;
+
+ st->dither_seed = RANDOM_INITSEED;
+ st->CN_dith = 0;
+
+ return 0;
+}
+
+
+/*
+ Table of new SPD synthesis states
+
+ | previous SPD_synthesis_state
+ Incoming |
+ frame_type | SPEECH | DTX | DTX_MUTE
+ ---------------------------------------------------------------
+ RX_SPEECH_GOOD , | | |
+ RX_SPEECH_PR_DEGRADED | SPEECH | SPEECH | SPEECH
+ ----------------------------------------------------------------
+ RX_SPEECH_BAD, | SPEECH | DTX | DTX_MUTE
+ ----------------------------------------------------------------
+ RX_SID_FIRST, | DTX | DTX/(DTX_MUTE)| DTX_MUTE
+ ----------------------------------------------------------------
+ RX_SID_UPDATE, | DTX | DTX | DTX
+ ----------------------------------------------------------------
+ RX_SID_BAD, | DTX | DTX/(DTX_MUTE)| DTX_MUTE
+ ----------------------------------------------------------------
+ RX_NO_DATA, | SPEECH | DTX/(DTX_MUTE)| DTX_MUTE
+ RX_SPARE |(class2 garb.)| |
+ ----------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*
+ * Function : dtx_dec_amr_wb
+ */
+int16 dtx_dec_amr_wb(
+ dtx_decState * st, /* i/o : State struct */
+ int16 * exc2, /* o : CN excitation */
+ int16 new_state, /* i : New DTX state */
+ int16 isf[], /* o : CN ISF vector */
+ int16 ** prms
+)
+{
+ int16 log_en_index;
+ int16 ind[7];
+ int16 i, j;
+ int16 int_fac;
+ int16 gain;
+
+ int32 L_isf[M], L_log_en_int, level32, ener32;
+ int16 ptr;
+ int16 tmp_int_length;
+ int16 tmp, exp, exp0, log_en_int_e, log_en_int_m, level;
+
+ /* This function is called if synthesis state is not SPEECH the globally passed inputs to this function
+ * are st->sid_frame st->valid_data st->dtxHangoverAdded new_state (SPEECH, DTX, DTX_MUTE) */
+
+ if ((st->dtxHangoverAdded != 0) &&
+ (st->sid_frame != 0))
+ {
+ /* sid_first after dtx hangover period */
+ /* or sid_upd after dtxhangover */
+
+ /* consider twice the last frame */
+ ptr = st->hist_ptr + 1;
+
+ if (ptr == DTX_HIST_SIZE)
+ ptr = 0;
+
+ pv_memcpy((void *)&st->isf_hist[ptr * M], (void *)&st->isf_hist[st->hist_ptr * M], M*sizeof(*st->isf_hist));
+
+ st->log_en_hist[ptr] = st->log_en_hist[st->hist_ptr];
+
+ /* compute mean log energy and isf from decoded signal (SID_FIRST) */
+ st->log_en = 0;
+ for (i = 0; i < M; i++)
+ {
+ L_isf[i] = 0;
+ }
+
+ /* average energy and isf */
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ /* Division by DTX_HIST_SIZE = 8 has been done in dtx_buffer log_en is in Q10 */
+ st->log_en = add_int16(st->log_en, st->log_en_hist[i]);
+
+ for (j = 0; j < M; j++)
+ {
+ L_isf[j] = add_int32(L_isf[j], (int32)(st->isf_hist[i * M + j]));
+ }
+ }
+
+ /* st->log_en in Q9 */
+ st->log_en >>= 1;
+
+ /* Add 2 in Q9, in order to have only positive values for Pow2 */
+ /* this value is subtracted back after Pow2 function */
+ st->log_en += 1024;
+
+ if (st->log_en < 0)
+ st->log_en = 0;
+
+ for (j = 0; j < M; j++)
+ {
+ st->isf[j] = (int16)(L_isf[j] >> 3); /* divide by 8 */
+ }
+
+ }
+
+ if (st->sid_frame != 0)
+ {
+ /* Set old SID parameters, always shift */
+ /* even if there is no new valid_data */
+
+ pv_memcpy((void *)st->isf_old, (void *)st->isf, M*sizeof(*st->isf));
+
+ st->old_log_en = st->log_en;
+
+ if (st->valid_data != 0) /* new data available (no CRC) */
+ {
+ /* st->true_sid_period_inv = 1.0f/st->since_last_sid; */
+ /* Compute interpolation factor, since the division only works * for values of since_last_sid <
+ * 32 we have to limit the * interpolation to 32 frames */
+ tmp_int_length = st->since_last_sid;
+
+
+ if (tmp_int_length > 32)
+ {
+ tmp_int_length = 32;
+ }
+
+ if (tmp_int_length >= 2)
+ {
+ st->true_sid_period_inv = div_16by16(1 << 10, shl_int16(tmp_int_length, 10));
+ }
+ else
+ {
+ st->true_sid_period_inv = 1 << 14; /* 0.5 it Q15 */
+ }
+
+ ind[0] = Serial_parm(6, prms);
+ ind[1] = Serial_parm(6, prms);
+ ind[2] = Serial_parm(6, prms);
+ ind[3] = Serial_parm(5, prms);
+ ind[4] = Serial_parm(5, prms);
+
+ Disf_ns(ind, st->isf);
+
+ log_en_index = Serial_parm(6, prms);
+
+ /* read background noise stationarity information */
+ st->CN_dith = Serial_parm_1bit(prms);
+
+ /* st->log_en = (float)log_en_index / 2.625 - 2.0; */
+ /* log2(E) in Q9 (log2(E) lies in between -2:22) */
+ st->log_en = shl_int16(log_en_index, 15 - 6);
+
+ /* Divide by 2.625 */
+ st->log_en = mult_int16(st->log_en, 12483);
+ /* Subtract 2 in Q9 is done later, after Pow2 function */
+
+ /* no interpolation at startup after coder reset */
+ /* or when SID_UPD has been received right after SPEECH */
+
+ if ((st->data_updated == 0) || (st->dtxGlobalState == SPEECH))
+ {
+ pv_memcpy((void *)st->isf_old, (void *)st->isf, M*sizeof(*st->isf));
+
+ st->old_log_en = st->log_en;
+ }
+ } /* endif valid_data */
+ } /* endif sid_frame */
+
+
+ if ((st->sid_frame != 0) && (st->valid_data != 0))
+ {
+ st->since_last_sid = 0;
+ }
+ /* Interpolate SID info */
+ int_fac = shl_int16(st->since_last_sid, 10); /* Q10 */
+ int_fac = mult_int16(int_fac, st->true_sid_period_inv); /* Q10 * Q15 -> Q10 */
+
+ /* Maximize to 1.0 in Q10 */
+
+ if (int_fac > 1024)
+ {
+ int_fac = 1024;
+ }
+ int_fac = shl_int16(int_fac, 4); /* Q10 -> Q14 */
+
+ L_log_en_int = mul_16by16_to_int32(int_fac, st->log_en); /* Q14 * Q9 -> Q24 */
+
+ for (i = 0; i < M; i++)
+ {
+ isf[i] = mult_int16(int_fac, st->isf[i]);/* Q14 * Q15 -> Q14 */
+ }
+
+ int_fac = 16384 - int_fac; /* 1-k in Q14 */
+
+ /* ( Q14 * Q9 -> Q24 ) + Q24 -> Q24 */
+ L_log_en_int = mac_16by16_to_int32(L_log_en_int, int_fac, st->old_log_en);
+
+ for (i = 0; i < M; i++)
+ {
+ /* Q14 + (Q14 * Q15 -> Q14) -> Q14 */
+ isf[i] = add_int16(isf[i], mult_int16(int_fac, st->isf_old[i]));
+ isf[i] = shl_int16(isf[i], 1); /* Q14 -> Q15 */
+ }
+
+ /* If background noise is non-stationary, insert comfort noise dithering */
+ if (st->CN_dith != 0)
+ {
+ CN_dithering(isf, &L_log_en_int, &st->dither_seed);
+ }
+ /* L_log_en_int corresponds to log2(E)+2 in Q24, i.e log2(gain)+1 in Q25 */
+ /* Q25 -> Q16 */
+ L_log_en_int >>= 9;
+
+ /* Find integer part */
+ log_en_int_e = extract_h(L_log_en_int);
+
+ /* Find fractional part */
+ log_en_int_m = (int16)(sub_int32(L_log_en_int, L_deposit_h(log_en_int_e)) >> 1);
+
+ /* Subtract 2 from L_log_en_int in Q9, i.e divide the gain by 2 (energy by 4) */
+ /* Add 16 in order to have the result of pow2 in Q16 */
+ log_en_int_e += 15;
+
+ /* level = (float)( pow( 2.0f, log_en ) ); */
+ level32 = power_of_2(log_en_int_e, log_en_int_m); /* Q16 */
+
+ exp0 = normalize_amr_wb(level32);
+ level32 <<= exp0; /* level in Q31 */
+ exp0 = 15 - exp0;
+ level = (int16)(level32 >> 16); /* level in Q15 */
+
+ /* generate white noise vector */
+ for (i = 0; i < L_FRAME; i++)
+ {
+ exc2[i] = noise_gen_amrwb(&(st->cng_seed)) >> 4;
+ }
+
+ /* gain = level / sqrt(ener) * sqrt(L_FRAME) */
+
+ /* energy of generated excitation */
+ ener32 = Dot_product12(exc2, exc2, L_FRAME, &exp);
+
+ one_ov_sqrt_norm(&ener32, &exp);
+
+ gain = extract_h(ener32);
+
+ gain = mult_int16(level, gain); /* gain in Q15 */
+
+ exp += exp0;
+
+ /* Multiply by sqrt(L_FRAME)=16, i.e. shift left by 4 */
+ exp += 4;
+
+ for (i = 0; i < L_FRAME; i++)
+ {
+ tmp = mult_int16(exc2[i], gain); /* Q0 * Q15 */
+ exc2[i] = shl_int16(tmp, exp);
+ }
+
+
+ if (new_state == DTX_MUTE)
+ {
+ /* mute comfort noise as it has been quite a long time since last SID update was performed */
+
+ tmp_int_length = st->since_last_sid;
+
+ if (tmp_int_length > 32)
+ {
+ tmp_int_length = 32;
+ }
+
+ st->true_sid_period_inv = div_16by16(1 << 10, shl_int16(tmp_int_length, 10));
+
+ st->since_last_sid = 0;
+ st->old_log_en = st->log_en;
+ /* subtract 1/8 in Q9 (energy), i.e -3/8 dB */
+ st->log_en -= 64;
+ }
+ /* reset interpolation length timer if data has been updated. */
+
+ if ((st->sid_frame != 0) &&
+ ((st->valid_data != 0) ||
+ ((st->valid_data == 0) && (st->dtxHangoverAdded) != 0)))
+ {
+ st->since_last_sid = 0;
+ st->data_updated = 1;
+ }
+ return 0;
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void dtx_dec_amr_wb_activity_update(
+ dtx_decState * st,
+ int16 isf[],
+ int16 exc[])
+{
+ int16 i;
+
+ int32 L_frame_en;
+ int16 log_en_e, log_en_m, log_en;
+
+
+ st->hist_ptr++;
+
+ if (st->hist_ptr == DTX_HIST_SIZE)
+ {
+ st->hist_ptr = 0;
+ }
+ pv_memcpy((void *)&st->isf_hist[st->hist_ptr * M], (void *)isf, M*sizeof(*isf));
+
+
+ /* compute log energy based on excitation frame energy in Q0 */
+ L_frame_en = 0;
+ for (i = 0; i < L_FRAME; i++)
+ {
+ L_frame_en = mac_16by16_to_int32(L_frame_en, exc[i], exc[i]);
+ }
+ L_frame_en >>= 1;
+
+ /* log_en = (float)log10(L_frame_en/(float)L_FRAME)/(float)log10(2.0f); */
+ amrwb_log_2(L_frame_en, &log_en_e, &log_en_m);
+
+ /* convert exponent and mantissa to int16 Q7. Q7 is used to simplify averaging in dtx_enc */
+ log_en = shl_int16(log_en_e, 7); /* Q7 */
+ log_en += log_en_m >> 8;
+
+ /* Divide by L_FRAME = 256, i.e subtract 8 in Q7 = 1024 */
+ log_en -= 1024;
+
+ /* insert into log energy buffer */
+ st->log_en_hist[st->hist_ptr] = log_en;
+
+ return;
+}
+
+
+/*
+ Table of new SPD synthesis states
+
+ | previous SPD_synthesis_state
+ Incoming |
+ frame_type | SPEECH | DTX | DTX_MUTE
+ ---------------------------------------------------------------
+ RX_SPEECH_GOOD , | | |
+ RX_SPEECH_PR_DEGRADED | SPEECH | SPEECH | SPEECH
+ ----------------------------------------------------------------
+ RX_SPEECH_BAD, | SPEECH | DTX | DTX_MUTE
+ ----------------------------------------------------------------
+ RX_SID_FIRST, | DTX | DTX/(DTX_MUTE)| DTX_MUTE
+ ----------------------------------------------------------------
+ RX_SID_UPDATE, | DTX | DTX | DTX
+ ----------------------------------------------------------------
+ RX_SID_BAD, | DTX | DTX/(DTX_MUTE)| DTX_MUTE
+ ----------------------------------------------------------------
+ RX_NO_DATA, | SPEECH | DTX/(DTX_MUTE)| DTX_MUTE
+ RX_SPARE |(class2 garb.)| |
+ ----------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+int16 rx_amr_wb_dtx_handler(
+ dtx_decState * st, /* i/o : State struct */
+ int16 frame_type /* i : Frame type */
+)
+{
+ int16 newState;
+ int16 encState;
+
+ /* DTX if SID frame or previously in DTX{_MUTE} and (NO_RX OR BAD_SPEECH) */
+
+
+
+ if ((frame_type == RX_SID_FIRST) ||
+ (frame_type == RX_SID_UPDATE) ||
+ (frame_type == RX_SID_BAD) ||
+ (((st->dtxGlobalState == DTX) ||
+ (st->dtxGlobalState == DTX_MUTE)) &&
+ ((frame_type == RX_NO_DATA) ||
+ (frame_type == RX_SPEECH_BAD) ||
+ (frame_type == RX_SPEECH_LOST))))
+ {
+ newState = DTX;
+
+ /* stay in mute for these input types */
+
+ if ((st->dtxGlobalState == DTX_MUTE) &&
+ ((frame_type == RX_SID_BAD) ||
+ (frame_type == RX_SID_FIRST) ||
+ (frame_type == RX_SPEECH_LOST) ||
+ (frame_type == RX_NO_DATA)))
+ {
+ newState = DTX_MUTE;
+ }
+ /* evaluate if noise parameters are too old */
+ /* since_last_sid is reset when CN parameters have been updated */
+ st->since_last_sid = add_int16(st->since_last_sid, 1);
+
+ /* no update of sid parameters in DTX for a long while */
+
+ if (st->since_last_sid > DTX_MAX_EMPTY_THRESH)
+ {
+ newState = DTX_MUTE;
+ }
+ }
+ else
+ {
+ newState = SPEECH;
+ st->since_last_sid = 0;
+ }
+
+ /* reset the decAnaElapsed Counter when receiving CNI data the first time, to robustify counter missmatch
+ * after handover this might delay the bwd CNI analysis in the new decoder slightly. */
+
+ if ((st->data_updated == 0) &&
+ (frame_type == RX_SID_UPDATE))
+ {
+ st->decAnaElapsedCount = 0;
+ }
+ /* update the SPE-SPD DTX hangover synchronization */
+ /* to know when SPE has added dtx hangover */
+ st->decAnaElapsedCount = add_int16(st->decAnaElapsedCount, 1);
+ st->dtxHangoverAdded = 0;
+
+
+ if ((frame_type == RX_SID_FIRST) ||
+ (frame_type == RX_SID_UPDATE) ||
+ (frame_type == RX_SID_BAD) ||
+ (frame_type == RX_NO_DATA))
+ {
+ encState = DTX;
+ }
+ else
+ {
+ encState = SPEECH;
+ }
+
+
+ if (encState == SPEECH)
+ {
+ st->dtxHangoverCount = DTX_HANG_CONST;
+ }
+ else
+ {
+
+ if (st->decAnaElapsedCount > DTX_ELAPSED_FRAMES_THRESH)
+ {
+ st->dtxHangoverAdded = 1;
+ st->decAnaElapsedCount = 0;
+ st->dtxHangoverCount = 0;
+ }
+ else if (st->dtxHangoverCount == 0)
+ {
+ st->decAnaElapsedCount = 0;
+ }
+ else
+ {
+ st->dtxHangoverCount--;
+ }
+ }
+
+ if (newState != SPEECH)
+ {
+ /* DTX or DTX_MUTE CN data is not in a first SID, first SIDs are marked as SID_BAD but will do
+ * backwards analysis if a hangover period has been added according to the state machine above */
+
+ st->sid_frame = 0;
+ st->valid_data = 0;
+
+
+ if (frame_type == RX_SID_FIRST)
+ {
+ st->sid_frame = 1;
+ }
+ else if (frame_type == RX_SID_UPDATE)
+ {
+ st->sid_frame = 1;
+ st->valid_data = 1;
+ }
+ else if (frame_type == RX_SID_BAD)
+ {
+ st->sid_frame = 1;
+ st->dtxHangoverAdded = 0; /* use old data */
+ }
+ }
+ return newState;
+ /* newState is used by both SPEECH AND DTX synthesis routines */
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void aver_isf_history(
+ int16 isf_old[],
+ int16 indices[],
+ int32 isf_aver[]
+)
+{
+ int16 i, j, k;
+ int16 isf_tmp[2 * M];
+ int32 L_tmp;
+
+ /* Memorize in isf_tmp[][] the ISF vectors to be replaced by */
+ /* the median ISF vector prior to the averaging */
+ for (k = 0; k < 2; k++)
+ {
+
+ if (indices[k] + 1 != 0)
+ {
+ for (i = 0; i < M; i++)
+ {
+ isf_tmp[k * M + i] = isf_old[indices[k] * M + i];
+ isf_old[indices[k] * M + i] = isf_old[indices[2] * M + i];
+ }
+ }
+ }
+
+ /* Perform the ISF averaging */
+ for (j = 0; j < M; j++)
+ {
+ L_tmp = 0;
+
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ L_tmp = add_int32(L_tmp, (int32)(isf_old[i * M + j]));
+ }
+ isf_aver[j] = L_tmp;
+ }
+
+ /* Retrieve from isf_tmp[][] the ISF vectors saved prior to averaging */
+ for (k = 0; k < 2; k++)
+ {
+
+ if (indices[k] + 1 != 0)
+ {
+ for (i = 0; i < M; i++)
+ {
+ isf_old[indices[k] * M + i] = isf_tmp[k * M + i];
+ }
+ }
+ }
+
+ return;
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void find_frame_indices(
+ int16 isf_old_tx[],
+ int16 indices[],
+ dtx_encState * st
+)
+{
+ int32 L_tmp, summin, summax, summax2nd;
+ int16 i, j, tmp;
+ int16 ptr;
+
+ /* Remove the effect of the oldest frame from the column */
+ /* sum sumD[0..DTX_HIST_SIZE-1]. sumD[DTX_HIST_SIZE] is */
+ /* not updated since it will be removed later. */
+
+ tmp = DTX_HIST_SIZE_MIN_ONE;
+ j = -1;
+ for (i = 0; i < DTX_HIST_SIZE_MIN_ONE; i++)
+ {
+ j += tmp;
+ st->sumD[i] = sub_int32(st->sumD[i], st->D[j]);
+ tmp--;
+ }
+
+ /* Shift the column sum sumD. The element sumD[DTX_HIST_SIZE-1] */
+ /* corresponding to the oldest frame is removed. The sum of */
+ /* the distances between the latest isf and other isfs, */
+ /* i.e. the element sumD[0], will be computed during this call. */
+ /* Hence this element is initialized to zero. */
+
+ for (i = DTX_HIST_SIZE_MIN_ONE; i > 0; i--)
+ {
+ st->sumD[i] = st->sumD[i - 1];
+ }
+ st->sumD[0] = 0;
+
+ /* Remove the oldest frame from the distance matrix. */
+ /* Note that the distance matrix is replaced by a one- */
+ /* dimensional array to save static memory. */
+
+ tmp = 0;
+ for (i = 27; i >= 12; i -= tmp)
+ {
+ tmp++;
+ for (j = tmp; j > 0; j--)
+ {
+ st->D[i - j + 1] = st->D[i - j - tmp];
+ }
+ }
+
+ /* Compute the first column of the distance matrix D */
+ /* (squared Euclidean distances from isf1[] to isf_old_tx[][]). */
+
+ ptr = st->hist_ptr;
+ for (i = 1; i < DTX_HIST_SIZE; i++)
+ {
+ /* Compute the distance between the latest isf and the other isfs. */
+ ptr--;
+
+ if (ptr < 0)
+ {
+ ptr = DTX_HIST_SIZE_MIN_ONE;
+ }
+ L_tmp = 0;
+ for (j = 0; j < M; j++)
+ {
+ tmp = sub_int16(isf_old_tx[st->hist_ptr * M + j], isf_old_tx[ptr * M + j]);
+ L_tmp = mac_16by16_to_int32(L_tmp, tmp, tmp);
+ }
+ st->D[i - 1] = L_tmp;
+
+ /* Update also the column sums. */
+ st->sumD[0] = add_int32(st->sumD[0], st->D[i - 1]);
+ st->sumD[i] = add_int32(st->sumD[i], st->D[i - 1]);
+ }
+
+ /* Find the minimum and maximum distances */
+ summax = st->sumD[0];
+ summin = st->sumD[0];
+ indices[0] = 0;
+ indices[2] = 0;
+ for (i = 1; i < DTX_HIST_SIZE; i++)
+ {
+
+ if (st->sumD[i] > summax)
+ {
+ indices[0] = i;
+ summax = st->sumD[i];
+ }
+
+ if (st->sumD[i] < summin)
+ {
+ indices[2] = i;
+ summin = st->sumD[i];
+ }
+ }
+
+ /* Find the second largest distance */
+ summax2nd = -2147483647L;
+ indices[1] = -1;
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+
+ if ((st->sumD[i] > summax2nd) && (i != indices[0]))
+ {
+ indices[1] = i;
+ summax2nd = st->sumD[i];
+ }
+ }
+
+ for (i = 0; i < 3; i++)
+ {
+ indices[i] = sub_int16(st->hist_ptr, indices[i]);
+
+ if (indices[i] < 0)
+ {
+ indices[i] = add_int16(indices[i], DTX_HIST_SIZE);
+ }
+ }
+
+ /* If maximum distance/MED_THRESH is smaller than minimum distance */
+ /* then the median ISF vector replacement is not performed */
+ tmp = normalize_amr_wb(summax);
+ summax <<= tmp;
+ summin <<= tmp;
+ L_tmp = mul_16by16_to_int32(amr_wb_round(summax), INV_MED_THRESH);
+
+ if (L_tmp <= summin)
+ {
+ indices[0] = -1;
+ }
+ /* If second largest distance/MED_THRESH is smaller than */
+ /* minimum distance then the median ISF vector replacement is */
+ /* not performed */
+ summax2nd = shl_int32(summax2nd, tmp);
+ L_tmp = mul_16by16_to_int32(amr_wb_round(summax2nd), INV_MED_THRESH);
+
+ if (L_tmp <= summin)
+ {
+ indices[1] = -1;
+ }
+ return;
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+int16 dithering_control(dtx_encState * st)
+{
+ int16 i, tmp, mean, CN_dith, gain_diff;
+ int32 ISF_diff;
+
+ /* determine how stationary the spectrum of background noise is */
+ ISF_diff = 0;
+ for (i = 0; i < 8; i++)
+ {
+ ISF_diff = add_int32(ISF_diff, st->sumD[i]);
+ }
+ if ((ISF_diff >> 26) > 0)
+ {
+ CN_dith = 1;
+ }
+ else
+ {
+ CN_dith = 0;
+ }
+
+ /* determine how stationary the energy of background noise is */
+ mean = 0;
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ mean = add_int16(mean, st->log_en_hist[i]);
+ }
+ mean >>= 3;
+ gain_diff = 0;
+ for (i = 0; i < DTX_HIST_SIZE; i++)
+ {
+ tmp = sub_int16(st->log_en_hist[i], mean);
+ tmp = tmp - (tmp < 0);
+
+ gain_diff += tmp ^(tmp >> 15); /* tmp ^sign(tmp) */;
+ }
+ if (gain_diff > GAIN_THR)
+ {
+ CN_dith = 1;
+ }
+ return CN_dith;
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void CN_dithering(
+ int16 isf[M],
+ int32 * L_log_en_int,
+ int16 * dither_seed
+)
+{
+ int16 temp, temp1, i, dither_fac, rand_dith;
+ int16 rand_dith2;
+
+ /* Insert comfort noise dithering for energy parameter */
+ rand_dith = noise_gen_amrwb(dither_seed) >> 1;
+ rand_dith2 = noise_gen_amrwb(dither_seed) >> 1;
+ rand_dith += rand_dith2;
+ *L_log_en_int = add_int32(*L_log_en_int, mul_16by16_to_int32(rand_dith, GAIN_FACTOR));
+
+ if (*L_log_en_int < 0)
+ {
+ *L_log_en_int = 0;
+ }
+ /* Insert comfort noise dithering for spectral parameters (ISF-vector) */
+ dither_fac = ISF_FACTOR_LOW;
+
+ rand_dith = noise_gen_amrwb(dither_seed) >> 1;
+ rand_dith2 = noise_gen_amrwb(dither_seed) >> 1;
+ rand_dith += rand_dith2;
+ temp = add_int16(isf[0], mult_int16_r(rand_dith, dither_fac));
+
+ /* Make sure that isf[0] will not get negative values */
+ if (temp < ISF_GAP)
+ {
+ isf[0] = ISF_GAP;
+ }
+ else
+ {
+ isf[0] = temp;
+ }
+
+ for (i = 1; i < M - 1; i++)
+ {
+ dither_fac = add_int16(dither_fac, ISF_FACTOR_STEP);
+
+ rand_dith = noise_gen_amrwb(dither_seed) >> 1;
+ rand_dith2 = noise_gen_amrwb(dither_seed) >> 1;
+ rand_dith += rand_dith2;
+ temp = add_int16(isf[i], mult_int16_r(rand_dith, dither_fac));
+ temp1 = sub_int16(temp, isf[i - 1]);
+
+ /* Make sure that isf spacing remains at least ISF_DITH_GAP Hz */
+ if (temp1 < ISF_DITH_GAP)
+ {
+ isf[i] = isf[i - 1] + ISF_DITH_GAP;
+ }
+ else
+ {
+ isf[i] = temp;
+ }
+ }
+
+ /* Make sure that isf[M-2] will not get values above 16384 */
+ if (isf[M - 2] > 16384)
+ {
+ isf[M - 2] = 16384;
+ }
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+
+ Filename: e_pv_amrwbdec.h
+
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_PV_AMRWBDEC_H
+#define E_PV_AMRWBDEC_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pvamrwbdecoder_cnst.h" /* coder constant parameters */
+#include "dtx.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+
+typedef struct
+{
+ int16 old_exc[PIT_MAX + L_INTERPOL]; /* old excitation vector */
+ int16 ispold[M]; /* old isp (immittance spectral pairs)*/
+ int16 isfold[M]; /* old isf (frequency domain) */
+ int16 isf_buf[L_MEANBUF * M]; /* isf buffer(frequency domain) */
+ int16 past_isfq[M]; /* past isf quantizer */
+ int16 tilt_code; /* tilt of code */
+ int16 Q_old; /* old scaling factor */
+ int16 Qsubfr[4]; /* old maximum scaling factor */
+ int32 L_gc_thres; /* threshold for noise enhancer */
+ int16 mem_syn_hi[M]; /* modified synthesis memory (MSB) */
+ int16 mem_syn_lo[M]; /* modified synthesis memory (LSB) */
+ int16 mem_deemph; /* speech deemph filter memory */
+ int16 mem_sig_out[6]; /* hp50 filter memory for synthesis */
+ int16 mem_oversamp[2 * L_FILT]; /* synthesis oversampled filter memory */
+ int16 mem_syn_hf[M16k]; /* HF synthesis memory */
+ int16 mem_hf[2 * L_FILT16k]; /* HF band-pass filter memory */
+ int16 mem_hf2[2 * L_FILT16k]; /* HF band-pass filter memory */
+ int16 mem_hf3[2 * L_FILT16k]; /* HF band-pass filter memory */
+ int16 seed; /* random memory for frame erasure */
+ int16 seed2; /* random memory for HF generation */
+ int16 old_T0; /* old pitch lag */
+ int16 old_T0_frac; /* old pitch fraction lag */
+ int16 lag_hist[5];
+ int16 dec_gain[23]; /* gain decoder memory */
+ int16 seed3; /* random memory for lag concealment */
+ int16 disp_mem[8]; /* phase dispersion memory */
+ int16 mem_hp400[6]; /* hp400 filter memory for synthesis */
+
+ int16 prev_bfi;
+ int16 state;
+ int16 first_frame;
+ dtx_decState dtx_decSt;
+ int16 vad_hist;
+
+} Decoder_State;
+
+typedef struct
+{
+ Decoder_State state;
+ int16 ScratchMem[L_SUBFR + L_SUBFR16k + ((L_SUBFR + M + M16k +1)<<1) + \
+ (2*L_FRAME + 1) + PIT_MAX + L_INTERPOL + NB_SUBFR*(M+1) \
+ + 3*(M+L_SUBFR) + M16k];
+} PV_AmrWbDec;
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: get_amr_wb_bits.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 no_of_bits, input : number of bits
+ int16 ** prms bitstream pointer
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Returns no_of_bits from serial bit stream
+ Serial_parm -> convert serial stream to parameters
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "get_amr_wb_bits.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+int16 Serial_parm( /* Return the parameter */
+ int16 no_of_bits, /* input : number of bits */
+ int16 ** prms
+)
+{
+ int16 value = 0;
+
+ for (int16 i = no_of_bits >> 1; i != 0; i--)
+ {
+ value <<= 2;
+
+ if (*((*prms)++) == BIT_1)
+ {
+ value |= 2;
+ }
+
+ if (*((*prms)++) == BIT_1)
+ {
+ value |= 1;
+ }
+
+ }
+
+ if (no_of_bits&1)
+ {
+ value <<= 1;
+
+ if (*((*prms)++) == BIT_1)
+ {
+ value |= 1;
+ }
+
+ }
+
+ return (value);
+}
+
+
+int16 Serial_parm_1bit(int16 ** prms) /* Return the parameter */
+{
+ int16 value = 0;
+
+ if (*((*prms)++) == BIT_1)
+ {
+ value = 1;
+ }
+ return (value);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*--------------------------------------------------------------------------*
+ * get_amr_wb_bits.h *
+ *--------------------------------------------------------------------------*
+ * Number of bits for different modes *
+ *--------------------------------------------------------------------------*/
+
+#ifndef GET_AMR_WB_BITS_H
+#define GET_AMR_WB_BITS_H
+
+
+#include "pv_amr_wb_type_defs.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+ int16 Serial_parm( /* Return the parameter */
+ int16 no_of_bits, /* input : number of bits */
+ int16 ** prms
+ );
+
+ int16 Serial_parm_1bit( /* Return the parameter */
+ int16 ** prms
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: highpass_400Hz_at_12k8.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 signal[], input signal / output is divided by 16
+ int16 lg, lenght of signal
+ int16 mem[] filter memory [6]
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ 2nd order high pass filter with cut off frequency at 400 Hz.
+ Designed with cheby2 function in MATLAB.
+ Optimized for fixed-point to get the following frequency response:
+
+ frequency: 0Hz 100Hz 200Hz 300Hz 400Hz 630Hz 1.5kHz 3kHz
+ dB loss: -infdB -30dB -20dB -10dB -3dB +6dB +1dB 0dB
+
+ Algorithm:
+
+ y[i] = b[0]*x[i] + b[1]*x[i-1] + b[2]*x[i-2]
+ + a[1]*y[i-1] + a[2]*y[i-2];
+
+ int16 b[3] = {3660, -7320, 3660}; in Q12
+ int16 a[3] = {4096, 7320, -3540}; in Q12
+
+ float --> b[3] = {0.893554687, -1.787109375, 0.893554687};
+ a[3] = {1.000000000, 1.787109375, -0.864257812};
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwb_math_op.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+/* Initialization of static values */
+
+void highpass_400Hz_at_12k8_init(int16 mem[])
+{
+ pv_memset((void *)mem, 0, 6*sizeof(*mem));
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void highpass_400Hz_at_12k8(
+ int16 signal[], /* input signal / output is divided by 16 */
+ int16 lg, /* lenght of signal */
+ int16 mem[] /* filter memory [6] */
+)
+{
+ int16 i, x2;
+ int16 y2_hi, y2_lo, y1_hi, y1_lo, x0, x1;
+ int32 L_tmp1;
+ int32 L_tmp2;
+
+ y2_hi = mem[0];
+ y2_lo = mem[1];
+ y1_hi = mem[2];
+ y1_lo = mem[3];
+ x0 = mem[4];
+ x1 = mem[5];
+
+ for (i = 0; i < lg; i++)
+ {
+
+ /* y[i] = b[0]*x[i] + b[1]*x[i-1] + b[0]*x[i-2] */
+ /* + a[0]*y[i-1] + a[1] * y[i-2]; */
+
+ L_tmp1 = fxp_mac_16by16(y1_lo, 29280, 8192L);
+ L_tmp2 = fxp_mul_16by16(y1_hi, 29280);
+ L_tmp1 = fxp_mac_16by16(y2_lo, -14160, L_tmp1);
+ L_tmp2 = fxp_mac_16by16(y2_hi, -14160, L_tmp2);
+ x2 = x1;
+ x1 = x0;
+ x0 = signal[i];
+ L_tmp2 = fxp_mac_16by16(x2, 915, L_tmp2);
+ L_tmp2 = fxp_mac_16by16(x1, -1830, L_tmp2);
+ L_tmp2 = fxp_mac_16by16(x0, 915, L_tmp2);
+
+ L_tmp1 = (L_tmp1 >> 13) + (L_tmp2 << 2); /* coeff Q12 --> Q13 */
+
+ y2_hi = y1_hi;
+ y2_lo = y1_lo;
+ /* signal is divided by 16 to avoid overflow in energy computation */
+ signal[i] = (int16)((L_tmp1 + 0x00008000) >> 16);
+
+ y1_hi = (int16)(L_tmp1 >> 16);
+ y1_lo = (int16)((L_tmp1 - (y1_hi << 16)) >> 1);
+
+
+ }
+
+
+ mem[0] = y2_hi;
+ mem[1] = y2_lo;
+ mem[2] = y1_hi;
+ mem[3] = y1_lo;
+ mem[4] = x0;
+ mem[5] = x1;
+
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: highpass_50Hz_at_12k8.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 signal[], input signal / output is divided by 16
+ int16 lg, lenght of signal
+ int16 mem[] filter memory [6]
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ 2nd order high pass filter with cut off frequency at 31 Hz.
+ Designed with cheby2 function in MATLAB.
+ Optimized for fixed-point to get the following frequency response:
+
+ frequency: 0Hz 14Hz 24Hz 31Hz 37Hz 41Hz 47Hz
+ dB loss: -infdB -15dB -6dB -3dB -1.5dB -1dB -0.5dB
+
+ Algorithm:
+
+ y[i] = b[0]*x[i] + b[1]*x[i-1] + b[2]*x[i-2]
+ + a[1]*y[i-1] + a[2]*y[i-2];
+
+ int16 b[3] = {4053, -8106, 4053}; in Q12
+ int16 a[3] = {8192, 16211, -8021}; in Q12
+
+ float --> b[3] = {0.989501953, -1.979003906, 0.989501953};
+ a[3] = {1.000000000, 1.978881836, -0.979125977};
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwb_math_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void highpass_50Hz_at_12k8_init(int16 mem[])
+{
+ pv_memset((void *)mem, 0, 6*sizeof(*mem));
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void highpass_50Hz_at_12k8(
+ int16 signal[], /* input/output signal */
+ int16 lg, /* lenght of signal */
+ int16 mem[] /* filter memory [6] */
+)
+{
+ int16 i, x2;
+ int16 y2_hi, y2_lo, y1_hi, y1_lo, x0, x1;
+ int32 L_tmp1;
+ int32 L_tmp2;
+ int16 *pt_sign = signal;
+
+ y2_hi = mem[0];
+ y2_lo = mem[1];
+ y1_hi = mem[2];
+ y1_lo = mem[3];
+ x0 = mem[4];
+ x1 = mem[5];
+
+
+ for (i = lg; i != 0; i--)
+ {
+
+ /* y[i] = b[0]*x[i] + b[1]*x[i-1] + b[0]*x[i-2] */
+ /* + a[0]*y[i-1] + a[1] * y[i-2]; */
+
+ L_tmp1 = fxp_mac_16by16(y1_lo, 16211, 8192L);
+ L_tmp1 = fxp_mac_16by16(y2_lo, -8021, L_tmp1);
+ L_tmp2 = fxp_mul_16by16(y1_hi, 32422);
+ L_tmp2 = fxp_mac_16by16(y2_hi, -16042, L_tmp2);
+
+ x2 = x1;
+ x1 = x0;
+ x0 = *pt_sign;
+ L_tmp2 = fxp_mac_16by16(x2, 8106, L_tmp2);
+ L_tmp2 = fxp_mac_16by16(x1, -16212, L_tmp2);
+ L_tmp2 = fxp_mac_16by16(x0, 8106, L_tmp2);
+
+
+ L_tmp1 = ((L_tmp1 >> 14) + L_tmp2) << 2;
+
+ y2_hi = y1_hi;
+ y2_lo = y1_lo;
+ y1_hi = (int16)(L_tmp1 >> 16);
+ y1_lo = (int16)((L_tmp1 - (y1_hi << 16)) >> 1);
+
+ /* coeff Q14 --> Q15 with saturation */
+ *(pt_sign++) = amr_wb_shl1_round(L_tmp1);
+
+ }
+
+
+ mem[0] = y2_hi;
+ mem[1] = y2_lo;
+ mem[2] = y1_hi;
+ mem[3] = y1_lo;
+ mem[4] = x0;
+ mem[5] = x1;
+
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: homing_amr_wb_dec.cpp
+
+------------------------------------------------------------------------------
+
+
+
+INPUT AND OUTPUT DEFINITIONS
+
+Input
+ int16 input_frame[], 16-bit input frame
+ int16 mode 16-bit mode
+ int16 nparms 16-bit number of parameters
+Returns
+ Int16 i number of leading zeros on x
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Performs the homing routines
+
+ int16 dhf_test(int16 input_frame[], int16 mode, int16 nparms)
+ int16 decoder_homing_frame_test(int16 input_frame[], int16 mode)
+ int16 decoder_homing_frame_test_first(int16 input_frame[], int16 mode)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "get_amr_wb_bits.h"
+#include "pvamrwbdecoder_api.h"
+#include "pvamrwbdecoder.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define DHF_PARMS_MAX 32 /* homing frame pattern */
+#define NUM_OF_SPMODES 9
+
+#define PRML 15
+#define PRMN_7k NBBITS_7k/PRML + 1
+#define PRMN_9k NBBITS_9k/PRML + 1
+#define PRMN_12k NBBITS_12k/PRML + 1
+#define PRMN_14k NBBITS_14k/PRML + 1
+#define PRMN_16k NBBITS_16k/PRML + 1
+#define PRMN_18k NBBITS_18k/PRML + 1
+#define PRMN_20k NBBITS_20k/PRML + 1
+#define PRMN_23k NBBITS_23k/PRML + 1
+#define PRMN_24k NBBITS_24k/PRML + 1
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ int16 dhf_test(int16 input_frame[], int32 mode, int16 nparms);
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+static const int16 prmnofsf[NUM_OF_SPMODES] =
+{
+ 63, 81, 100,
+ 108, 116, 128,
+ 136, 152, 156
+};
+
+
+const int16 dfh_M7k[PRMN_7k] =
+{
+ 3168, 29954, 29213, 16121,
+ 64, 13440, 30624, 16430,
+ 19008
+};
+
+const int16 dfh_M9k[PRMN_9k] =
+{
+ 3168, 31665, 9943, 9123,
+ 15599, 4358, 20248, 2048,
+ 17040, 27787, 16816, 13888
+};
+
+const int16 dfh_M12k[PRMN_12k] =
+{
+ 3168, 31665, 9943, 9128,
+ 3647, 8129, 30930, 27926,
+ 18880, 12319, 496, 1042,
+ 4061, 20446, 25629, 28069,
+ 13948
+};
+
+const int16 dfh_M14k[PRMN_14k] =
+{
+ 3168, 31665, 9943, 9131,
+ 24815, 655, 26616, 26764,
+ 7238, 19136, 6144, 88,
+ 4158, 25733, 30567, 30494,
+ 221, 20321, 17823
+};
+
+const int16 dfh_M16k[PRMN_16k] =
+{
+ 3168, 31665, 9943, 9131,
+ 24815, 700, 3824, 7271,
+ 26400, 9528, 6594, 26112,
+ 108, 2068, 12867, 16317,
+ 23035, 24632, 7528, 1752,
+ 6759, 24576
+};
+
+const int16 dfh_M18k[PRMN_18k] =
+{
+ 3168, 31665, 9943, 9135,
+ 14787, 14423, 30477, 24927,
+ 25345, 30154, 916, 5728,
+ 18978, 2048, 528, 16449,
+ 2436, 3581, 23527, 29479,
+ 8237, 16810, 27091, 19052,
+ 0
+};
+
+const int16 dfh_M20k[PRMN_20k] =
+{
+ 3168, 31665, 9943, 9129,
+ 8637, 31807, 24646, 736,
+ 28643, 2977, 2566, 25564,
+ 12930, 13960, 2048, 834,
+ 3270, 4100, 26920, 16237,
+ 31227, 17667, 15059, 20589,
+ 30249, 29123, 0
+};
+
+const int16 dfh_M23k[PRMN_23k] =
+{
+ 3168, 31665, 9943, 9132,
+ 16748, 3202, 28179, 16317,
+ 30590, 15857, 19960, 8818,
+ 21711, 21538, 4260, 16690,
+ 20224, 3666, 4194, 9497,
+ 16320, 15388, 5755, 31551,
+ 14080, 3574, 15932, 50,
+ 23392, 26053, 31216
+};
+
+const int16 dfh_M24k[PRMN_24k] =
+{
+ 3168, 31665, 9943, 9134,
+ 24776, 5857, 18475, 28535,
+ 29662, 14321, 16725, 4396,
+ 29353, 10003, 17068, 20504,
+ 720, 0, 8465, 12581,
+ 28863, 24774, 9709, 26043,
+ 7941, 27649, 13965, 15236,
+ 18026, 22047, 16681, 3968
+};
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+int16 dhf_test(int16 input_frame[], int32 mode, int16 nparms)
+{
+ int16 i, j, tmp, shift;
+ int16 param[DHF_PARMS_MAX];
+ int16 *prms;
+
+ /* overall table with the parameters of the
+ decoder homing frames for all modes */
+
+ const int16 *dhf[] =
+ {
+ dfh_M7k,
+ dfh_M9k,
+ dfh_M12k,
+ dfh_M14k,
+ dfh_M16k,
+ dfh_M18k,
+ dfh_M20k,
+ dfh_M23k,
+ dfh_M24k,
+ dfh_M24k
+ };
+
+ prms = input_frame;
+ j = 0;
+ i = 0;
+
+ if (mode != MRDTX)
+ {
+ if (mode != MODE_24k)
+ {
+ /* convert the received serial bits */
+ tmp = nparms - 15;
+ while (tmp > j)
+ {
+ param[i] = Serial_parm(15, &prms);
+ j += 15;
+ i++;
+ }
+ tmp = nparms - j;
+ param[i] = Serial_parm(tmp, &prms);
+ shift = 15 - tmp;
+ param[i] = shl_int16(param[i], shift);
+ }
+ else
+ {
+ /*If mode is 23.85Kbit/s, remove high band energy bits */
+ for (i = 0; i < 10; i++)
+ {
+ param[i] = Serial_parm(15, &prms);
+ }
+ param[10] = Serial_parm(15, &prms) & 0x61FF;
+
+ for (i = 11; i < 17; i++)
+ {
+ param[i] = Serial_parm(15, &prms);
+ }
+ param[17] = Serial_parm(15, &prms) & 0xE0FF;
+
+ for (i = 18; i < 24; i++)
+ {
+ param[i] = Serial_parm(15, &prms);
+ }
+ param[24] = Serial_parm(15, &prms) & 0x7F0F;
+
+ for (i = 25; i < 31; i++)
+ {
+ param[i] = Serial_parm(15, &prms);
+ }
+
+ tmp = Serial_parm(8, &prms);
+ param[31] = shl_int16(tmp, 7);
+ shift = 0;
+ }
+
+ /* check if the parameters matches the parameters of the corresponding decoder homing frame */
+ tmp = i;
+ j = 0;
+ for (i = 0; i < tmp; i++)
+ {
+ j = (param[i] ^ dhf[mode][i]);
+ if (j)
+ {
+ break;
+ }
+ }
+ tmp = 0x7fff;
+ tmp >>= shift;
+ tmp = shl_int16(tmp, shift);
+ tmp = (dhf[mode][i] & tmp);
+ tmp = (param[i] ^ tmp);
+ j = (int16)(j | tmp);
+
+ }
+ else
+ {
+ j = 1;
+ }
+
+ return (!j);
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+int16 pvDecoder_AmrWb_homing_frame_test(int16 input_frame[], int16 mode)
+{
+ /* perform test for COMPLETE parameter frame */
+ return dhf_test(input_frame, mode, AMR_WB_COMPRESSED[mode]);
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+int16 pvDecoder_AmrWb_homing_frame_test_first(int16 input_frame[], int16 mode)
+{
+ /* perform test for FIRST SUBFRAME of parameter frame ONLY */
+ return dhf_test(input_frame, mode, prmnofsf[mode]);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: interpolate_isp.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 isp_old[], input : isps from past frame
+ int16 isp_new[], input : isps from present frame
+ const int16 frac[], input : fraction for 3 first subfr (Q15)
+ int16 Az[] output: LP coefficients in 4 subframes
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Interpolation of the LP parameters in 4 subframes
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define MP1 (M+1)
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void interpolate_isp(
+ int16 isp_old[], /* input : isps from past frame */
+ int16 isp_new[], /* input : isps from present frame */
+ const int16 frac[], /* input : fraction for 3 first subfr (Q15) */
+ int16 Az[] /* output: LP coefficients in 4 subframes */
+)
+{
+ int16 i, k, fac_old, fac_new;
+ int16 isp[M];
+ int32 L_tmp;
+
+ for (k = 0; k < 3; k++)
+ {
+ fac_new = frac[k];
+ fac_old = add_int16(sub_int16(32767, fac_new), 1); /* 1.0 - fac_new */
+
+ for (i = 0; i < M; i++)
+ {
+ L_tmp = mul_16by16_to_int32(isp_old[i], fac_old);
+ L_tmp = mac_16by16_to_int32(L_tmp, isp_new[i], fac_new);
+ isp[i] = amr_wb_round(L_tmp);
+ }
+ Isp_Az(isp, Az, M, 0);
+ Az += MP1;
+ }
+
+ /* 4th subframe: isp_new (frac=1.0) */
+
+ Isp_Az(isp_new, Az, M, 0);
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: isf_extrapolation.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 HfIsf[] (i/o) isf vector
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Conversion of 16th-order 12.8kHz ISF vector
+ into 20th-order 16kHz ISF vector
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+#include "pvamrwb_math_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define INV_LENGTH 2731 /* 1/12 */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void isf_extrapolation(int16 HfIsf[])
+{
+ int16 IsfDiff[M - 2];
+ int32 IsfCorr[3];
+ int32 L_tmp;
+ int16 coeff, mean, tmp, tmp2, tmp3;
+ int16 exp, exp2, hi, lo;
+ int16 i, MaxCorr;
+
+ HfIsf[M16k - 1] = HfIsf[M - 1];
+
+ /* Difference vector */
+ for (i = 1; i < (M - 1); i++)
+ {
+ IsfDiff[i - 1] = sub_int16(HfIsf[i], HfIsf[i - 1]);
+ }
+ L_tmp = 0;
+
+ /* Mean of difference vector */
+ for (i = 3; i < (M - 1); i++)
+ {
+ L_tmp = mac_16by16_to_int32(L_tmp, IsfDiff[i - 1], INV_LENGTH);
+
+ }
+ mean = amr_wb_round(L_tmp);
+
+ IsfCorr[0] = 0;
+
+ tmp = 0;
+ for (i = 0; i < (M - 2); i++)
+ {
+ if (IsfDiff[i] > tmp)
+ {
+ tmp = IsfDiff[i];
+ }
+ }
+ exp = norm_s(tmp);
+ for (i = 0; i < (M - 2); i++)
+ {
+ IsfDiff[i] = shl_int16(IsfDiff[i], exp);
+ }
+ mean = shl_int16(mean, exp);
+ for (i = 7; i < (M - 2); i++)
+ {
+ tmp2 = sub_int16(IsfDiff[i], mean);
+ tmp3 = sub_int16(IsfDiff[i - 2], mean);
+ L_tmp = mul_16by16_to_int32(tmp2, tmp3);
+ int32_to_dpf(L_tmp, &hi, &lo);
+ L_tmp = mpy_dpf_32(hi, lo, hi, lo);
+ IsfCorr[0] = add_int32(IsfCorr[0], L_tmp);
+ }
+ IsfCorr[1] = 0;
+ for (i = 7; i < (M - 2); i++)
+ {
+ tmp2 = sub_int16(IsfDiff[i], mean);
+ tmp3 = sub_int16(IsfDiff[i - 3], mean);
+ L_tmp = mul_16by16_to_int32(tmp2, tmp3);
+ int32_to_dpf(L_tmp, &hi, &lo);
+ L_tmp = mpy_dpf_32(hi, lo, hi, lo);
+ IsfCorr[1] = add_int32(IsfCorr[1], L_tmp);
+ }
+ IsfCorr[2] = 0;
+ for (i = 7; i < (M - 2); i++)
+ {
+ tmp2 = sub_int16(IsfDiff[i], mean);
+ tmp3 = sub_int16(IsfDiff[i - 4], mean);
+ L_tmp = mul_16by16_to_int32(tmp2, tmp3);
+ int32_to_dpf(L_tmp, &hi, &lo);
+ L_tmp = mpy_dpf_32(hi, lo, hi, lo);
+ IsfCorr[2] = add_int32(IsfCorr[2], L_tmp);
+ }
+
+ if (IsfCorr[0] > IsfCorr[1])
+ {
+ MaxCorr = 0;
+ }
+ else
+ {
+ MaxCorr = 1;
+ }
+
+
+ if (IsfCorr[2] > IsfCorr[MaxCorr])
+ {
+ MaxCorr = 2;
+ }
+
+ MaxCorr++; /* Maximum correlation of difference vector */
+
+ for (i = M - 1; i < (M16k - 1); i++)
+ {
+ tmp = sub_int16(HfIsf[i - 1 - MaxCorr], HfIsf[i - 2 - MaxCorr]);
+ HfIsf[i] = add_int16(HfIsf[i - 1], tmp);
+ }
+
+ /* tmp=7965+(HfIsf[2]-HfIsf[3]-HfIsf[4])/6; */
+ tmp = add_int16(HfIsf[4], HfIsf[3]);
+ tmp = sub_int16(HfIsf[2], tmp);
+ tmp = mult_int16(tmp, 5461);
+ tmp += 20390;
+
+
+ if (tmp > 19456)
+ { /* Maximum value of ISF should be at most 7600 Hz */
+ tmp = 19456;
+ }
+ tmp = sub_int16(tmp, HfIsf[M - 2]);
+ tmp2 = sub_int16(HfIsf[M16k - 2], HfIsf[M - 2]);
+
+ exp2 = norm_s(tmp2);
+ exp = norm_s(tmp);
+ exp--;
+ tmp <<= exp;
+ tmp2 <<= exp2;
+ coeff = div_16by16(tmp, tmp2); /* Coefficient for stretching the ISF vector */
+ exp = exp2 - exp;
+
+ for (i = M - 1; i < (M16k - 1); i++)
+ {
+ tmp = mult_int16(sub_int16(HfIsf[i], HfIsf[i - 1]), coeff);
+ IsfDiff[i - (M - 1)] = shl_int16(tmp, exp);
+ }
+
+ for (i = M; i < (M16k - 1); i++)
+ {
+ /* The difference between ISF(n) and ISF(n-2) should be at least 500 Hz */
+ tmp = IsfDiff[i - (M - 1)] + IsfDiff[i - M] - 1280;
+
+ if (tmp < 0)
+ {
+
+ if (IsfDiff[i - (M - 1)] > IsfDiff[i - M])
+ {
+ IsfDiff[i - M] = 1280 - IsfDiff[i - (M - 1)];
+ }
+ else
+ {
+ IsfDiff[i - (M - 1)] = 1280 - IsfDiff[i - M];
+ }
+ }
+ }
+
+ for (i = M - 1; i < (M16k - 1); i++)
+ {
+ HfIsf[i] = add_int16(HfIsf[i - 1], IsfDiff[i - (M - 1)]);
+ }
+
+ for (i = 0; i < (M16k - 1); i++)
+ {
+ HfIsf[i] = mult_int16(HfIsf[i], 26214); /* Scale the ISF vector correctly for 16000 kHz */
+ }
+
+ Isf_isp(HfIsf, HfIsf, M16k);
+
+ return;
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: isp_az.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 isp[], (i) Q15 : Immittance spectral pairs
+ int16 a[], (o) Q12 : predictor coefficients (order=M)
+ int16 m, (i) : order
+ int16 adaptive_scaling (i) 0 : adaptive scaling disabled
+ 1 : adaptive scaling enabled
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Compute the LPC coefficients from isp (order=M)
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+#include "pvamrwb_math_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define NC (M/2)
+#define NC16k (M16k/2)
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ void Get_isp_pol(int16 * isp, int32 * f, int16 n);
+ void Get_isp_pol_16kHz(int16 * isp, int32 * f, int16 n);
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void Isp_Az(
+ int16 isp[], /* (i) Q15 : Immittance spectral pairs */
+ int16 a[], /* (o) Q12 : predictor coefficients (order=M) */
+ int16 m, /* (i) : order */
+ int16 adaptive_scaling /* (i) 0 : adaptive scaling disabled */
+ /* 1 : adaptive scaling enabled */
+)
+{
+ int16 i, j;
+ int32 f1[NC16k + 1], f2[NC16k];
+ int16 nc;
+ int32 t0;
+ int32 t1;
+ int16 q, q_sug;
+ int32 tmax;
+
+ nc = m >> 1;
+
+
+ if (nc > 8)
+ {
+ Get_isp_pol_16kHz(&isp[0], f1, nc);
+ for (i = 0; i <= nc; i++)
+ {
+ f1[i] = shl_int32(f1[i], 2);
+ }
+ Get_isp_pol_16kHz(&isp[1], f2, nc - 1);
+ for (i = 0; i <= nc - 1; i++)
+ {
+ f2[i] = shl_int32(f2[i], 2);
+ }
+ }
+ else
+ {
+ Get_isp_pol(&isp[0], f1, nc);
+ Get_isp_pol(&isp[1], f2, nc - 1);
+ }
+
+ /*
+ * Multiply F2(z) by (1 - z^-2)
+ */
+
+ for (i = nc - 1; i > 1; i--)
+ {
+ f2[i] -= f2[i - 2]; /* f2[i] -= f2[i-2]; */
+ }
+
+ /*
+ * Scale F1(z) by (1+isp[m-1]) and F2(z) by (1-isp[m-1])
+ */
+
+ for (i = 0; i < nc; i++)
+ {
+ /* f1[i] *= (1.0 + isp[M-1]); */
+
+ /* f2[i] *= (1.0 - isp[M-1]); */
+ t0 = f1[i];
+ t1 = f2[i];
+ t0 = fxp_mul32_by_16b(t0, isp[m - 1]) << 1;
+ t1 = fxp_mul32_by_16b(t1, isp[m - 1]) << 1;
+ f1[i] += t0;
+ f2[i] -= t1;
+
+ }
+
+ /*
+ * A(z) = (F1(z)+F2(z))/2
+ * F1(z) is symmetric and F2(z) is antisymmetric
+ */
+
+ /* a[0] = 1.0; */
+ a[0] = 4096;
+ tmax = 1;
+ j = m - 1;
+ for (i = 1; i < nc; i++)
+ {
+ /* a[i] = 0.5*(f1[i] + f2[i]); */
+
+ t0 = add_int32(f1[i], f2[i]); /* f1[i] + f2[i] */
+ /* compute t1 = abs(t0) */
+ t1 = t0 - (t0 < 0);
+ t1 = t1 ^(t1 >> 31); /* t1 = t1 ^sign(t1) */
+
+ tmax |= t1;
+ /* from Q23 to Q12 and * 0.5 */
+ a[i] = (int16)((t0 >> 12) + ((t0 >> 11) & 1));
+
+
+ /* a[j] = 0.5*(f1[i] - f2[i]); */
+
+ t0 = sub_int32(f1[i], f2[i]); /* f1[i] - f2[i] */
+ /* compute t1 = abs(t0) */
+ t1 = t0 - (t0 < 0);
+ t1 = t1 ^(t1 >> 31); /* t1 = t1 ^sign(t1) */
+
+ tmax |= t1;
+
+ /* from Q23 to Q12 and * 0.5 */
+ a[j--] = (int16)((t0 >> 12) + ((t0 >> 11) & 1));
+
+ }
+
+ /* rescale data if overflow has occured and reprocess the loop */
+
+
+ if (adaptive_scaling == 1)
+ {
+ q = 4 - normalize_amr_wb(tmax); /* adaptive scaling enabled */
+ }
+ else
+ {
+ q = 0; /* adaptive scaling disabled */
+ }
+
+
+ if (q > 0)
+ {
+ q_sug = 12 + q;
+ for (i = 1, j = m - 1; i < nc; i++, j--)
+ {
+ /* a[i] = 0.5*(f1[i] + f2[i]); */
+
+ t0 = add_int32(f1[i], f2[i]); /* f1[i] + f2[i] */
+ /* from Q23 to Q12 and * 0.5 */
+ a[i] = (int16)((t0 >> q_sug) + ((t0 >> (q_sug - 1)) & 1));
+
+
+ /* a[j] = 0.5*(f1[i] - f2[i]); */
+
+ t0 = sub_int32(f1[i], f2[i]); /* f1[i] - f2[i] */
+ /* from Q23 to Q12 and * 0.5 */
+ a[j] = (int16)((t0 >> q_sug) + ((t0 >> (q_sug - 1)) & 1));
+
+ }
+ a[0] >>= q;
+ }
+ else
+ {
+ q_sug = 12;
+ q = 0;
+ }
+
+ /* a[NC] = 0.5*f1[NC]*(1.0 + isp[M-1]); */
+
+
+ t0 = (int32)(((int64)f1[nc] * isp[m - 1]) >> 16) << 1;
+
+
+ t0 = add_int32(f1[nc], t0);
+
+ /* from Q23 to Q12 and * 0.5 */
+ a[nc] = (int16)((t0 >> q_sug) + ((t0 >> (q_sug - 1)) & 1));
+ a[m] = shr_rnd(isp[m - 1], (3 + q)); /* from Q15 to Q12 */
+
+ /* a[m] = isp[m-1]; */
+
+
+ return;
+}
+
+
+
+/*
+Get_isp_pol
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ isp[] : isp vector (cosine domaine) in Q15
+ f[] : the coefficients of F1 or F2 in Q23
+ n : == NC for F1(z); == NC-1 for F2(z)
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Find the polynomial F1(z) or F2(z) from the ISPs.
+ This is performed by expanding the product polynomials:
+
+ F1(z) = product ( 1 - 2 isp_i z^-1 + z^-2 )
+ i=0,2,4,6,8
+ F2(z) = product ( 1 - 2 isp_i z^-1 + z^-2 )
+ i=1,3,5,7
+
+ where isp_i are the ISPs in the cosine domain.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void Get_isp_pol(int16 * isp, int32 * f, int16 n)
+{
+ int16 i, j;
+ int32 t0;
+
+
+ /* All computation in Q23 */
+
+ f[0] = 0x00800000; /* f[0] = 1.0; in Q23 */
+ f[1] = -isp[0] << 9; /* f[1] = -2.0*isp[0] in Q23 */
+
+ f += 2; /* Advance f pointer */
+ isp += 2; /* Advance isp pointer */
+
+ for (i = 2; i <= n; i++)
+ {
+ *f = f[-2];
+
+ for (j = 1; j < i; j++)
+ {
+
+ t0 = fxp_mul32_by_16b(f[-1], *isp);
+ t0 = shl_int32(t0, 2);
+
+ *f -= t0; /* *f -= t0 */
+ *(f) += f[-2]; /* *f += f[-2] */
+ f--;
+
+
+ }
+ *f -= *isp << 9;
+
+ f += i; /* Advance f pointer */
+ isp += 2; /* Advance isp pointer */
+ }
+}
+
+void Get_isp_pol_16kHz(int16 * isp, int32 * f, int16 n)
+{
+ int16 i, j;
+ int32 t0;
+
+ /* All computation in Q23 */
+
+ f[0] = 0x00200000; /* f[0] = 0.25; in Q23 */
+
+ f[1] = -isp[0] << 7; /* f[1] = -0.5*isp[0] in Q23 */
+
+ f += 2; /* Advance f pointer */
+ isp += 2; /* Advance isp pointer */
+
+ for (i = 2; i <= n; i++)
+ {
+ *f = f[-2];
+
+ for (j = 1; j < i; j++, f--)
+ {
+ t0 = fxp_mul32_by_16b(f[-1], *isp);
+ t0 = shl_int32(t0, 2);
+
+ *f -= t0; /* *f -= t0 */
+ *f += f[-2]; /* *f += f[-2] */
+ }
+ *f -= *isp << 7;
+ f += i; /* Advance f pointer */
+ isp += 2; /* Advance isp pointer */
+ }
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: isp_isf.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 isf[], (i) Q15 : isf[m] normalized (range: 0.0<=val<=0.5)
+ int16 isp[], (o) Q15 : isp[m] (range: -1<=val<1)
+ int16 m (i) : LPC order
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Isf_isp Transformation isf to isp
+
+ The transformation from isf[i] to isp[i] is
+ approximated by a look-up table and interpolation.
+
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/* Look-up table for transformations */
+
+/* table of cos(x) in Q15 */
+
+static const int16 table[129] =
+{
+ 32767,
+ 32758, 32729, 32679, 32610, 32522, 32413, 32286, 32138,
+ 31972, 31786, 31581, 31357, 31114, 30853, 30572, 30274,
+ 29957, 29622, 29269, 28899, 28511, 28106, 27684, 27246,
+ 26791, 26320, 25833, 25330, 24812, 24279, 23732, 23170,
+ 22595, 22006, 21403, 20788, 20160, 19520, 18868, 18205,
+ 17531, 16846, 16151, 15447, 14733, 14010, 13279, 12540,
+ 11793, 11039, 10279, 9512, 8740, 7962, 7180, 6393,
+ 5602, 4808, 4011, 3212, 2411, 1608, 804, 0,
+ -804, -1608, -2411, -3212, -4011, -4808, -5602, -6393,
+ -7180, -7962, -8740, -9512, -10279, -11039, -11793, -12540,
+ -13279, -14010, -14733, -15447, -16151, -16846, -17531, -18205,
+ -18868, -19520, -20160, -20788, -21403, -22006, -22595, -23170,
+ -23732, -24279, -24812, -25330, -25833, -26320, -26791, -27246,
+ -27684, -28106, -28511, -28899, -29269, -29622, -29957, -30274,
+ -30572, -30853, -31114, -31357, -31581, -31786, -31972, -32138,
+ -32286, -32413, -32522, -32610, -32679, -32729, -32758, -32768
+};
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void Isf_isp(
+ int16 isf[], /* (i) Q15 : isf[m] normalized (range: 0.0<=val<=0.5) */
+ int16 isp[], /* (o) Q15 : isp[m] (range: -1<=val<1) */
+ int16 m /* (i) : LPC order */
+)
+{
+ int16 i, ind, offset;
+ int32 L_tmp;
+
+ for (i = 0; i < m - 1; i++)
+ {
+ isp[i] = isf[i];
+ }
+ isp[m - 1] = shl_int16(isf[m - 1], 1);
+
+ for (i = 0; i < m; i++)
+ {
+ ind = isp[i] >> 7; /* ind = b7-b15 of isf[i] */
+ offset = (isp[i] & 0x007f); /* offset = b0-b6 of isf[i] */
+
+ /* isp[i] = table[ind]+ ((table[ind+1]-table[ind])*offset) / 128 */
+
+ L_tmp = mul_16by16_to_int32(table[ind + 1] - table[ind], offset);
+ isp[i] = add_int16(table[ind], (int16)(L_tmp >> 8));
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: lagconceal.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 gain_hist[], (i) : Gain history
+ int16 lag_hist[], (i) : Subframe size
+ int16 * T0, (i/o): current lag
+ int16 * old_T0, (i/o): previous lag
+ int16 * seed,
+ int16 unusable_frame
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Concealment of LTP lags during bad frames
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define L_LTPHIST 5
+#define ONE_PER_3 10923
+#define ONE_PER_LTPHIST 6554
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+void insertion_sort(int16 array[], int16 n);
+void insert(int16 array[], int16 num, int16 x);
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void Init_Lagconc(int16 lag_hist[])
+{
+ int16 i;
+
+ for (i = 0; i < L_LTPHIST; i++)
+ {
+ lag_hist[i] = 64;
+ }
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void lagconceal(
+ int16 gain_hist[], /* (i) : Gain history */
+ int16 lag_hist[], /* (i) : Subframe size */
+ int16 * T0,
+ int16 * old_T0,
+ int16 * seed,
+ int16 unusable_frame
+)
+{
+ int16 maxLag, minLag, lastLag, lagDif, meanLag = 0;
+ int16 lag_hist2[L_LTPHIST] = {0};
+ int16 i, tmp, tmp2;
+ int16 minGain, lastGain, secLastGain;
+ int16 D, D2;
+
+ /* Is lag index such that it can be aplied directly or does it has to be subtituted */
+
+ lastGain = gain_hist[4];
+ secLastGain = gain_hist[3];
+
+ lastLag = lag_hist[0];
+
+ /******* SMALLEST history lag *******/
+ minLag = lag_hist[0];
+ /******* BIGGEST history lag *******/
+ maxLag = lag_hist[0];
+ for (i = 1; i < L_LTPHIST; i++)
+ {
+ if (lag_hist[i] < minLag)
+ {
+ minLag = lag_hist[i];
+ }
+ if (lag_hist[i] > maxLag)
+ {
+ maxLag = lag_hist[i];
+ }
+ }
+ /***********SMALLEST history gain***********/
+ minGain = gain_hist[0];
+ for (i = 1; i < L_LTPHIST; i++)
+ {
+
+ if (gain_hist[i] < minGain)
+ {
+ minGain = gain_hist[i];
+ }
+ }
+ /***Difference between MAX and MIN lag**/
+ lagDif = sub_int16(maxLag, minLag);
+
+
+ if (unusable_frame != 0)
+ {
+ /* LTP-lag for RX_SPEECH_LOST */
+ /**********Recognition of the LTP-history*********/
+
+ if ((minGain > 8192) && (lagDif < 10))
+ {
+ *T0 = *old_T0;
+ }
+ else if (lastGain > 8192 && secLastGain > 8192)
+ {
+ *T0 = lag_hist[0];
+ }
+ else
+ {
+ /********SORT************/
+ /* The sorting of the lag history */
+ for (i = 0; i < L_LTPHIST; i++)
+ {
+ lag_hist2[i] = lag_hist[i];
+ }
+ insertion_sort(lag_hist2, 5);
+
+ /* Lag is weighted towards bigger lags */
+ /* and random variation is added */
+ lagDif = sub_int16(lag_hist2[4], lag_hist2[2]);
+
+
+ if (lagDif > 40)
+ {
+ lagDif = 40;
+ }
+
+ D = noise_gen_amrwb(seed); /* D={-1, ...,1} */
+ /* D2={-lagDif/2..lagDif/2} */
+ tmp = lagDif >> 1;
+ D2 = mult_int16(tmp, D);
+ tmp = add_int16(add_int16(lag_hist2[2], lag_hist2[3]), lag_hist2[4]);
+ *T0 = add_int16(mult_int16(tmp, ONE_PER_3), D2);
+ }
+ /* New lag is not allowed to be bigger or smaller than last lag values */
+
+ if (*T0 > maxLag)
+ {
+ *T0 = maxLag;
+ }
+
+ if (*T0 < minLag)
+ {
+ *T0 = minLag;
+ }
+ }
+ else
+ {
+ /* LTP-lag for RX_BAD_FRAME */
+
+ /***********MEAN lag**************/
+ meanLag = 0;
+ for (i = 0; i < L_LTPHIST; i++)
+ {
+ meanLag = add_int16(meanLag, lag_hist[i]);
+ }
+ meanLag = mult_int16(meanLag, ONE_PER_LTPHIST);
+
+ tmp = *T0 - maxLag;
+ tmp2 = *T0 - lastLag;
+
+ if ((lagDif < 10) && (*T0 > (minLag - 5)) && (tmp < 5))
+ {
+ *T0 = *T0;
+ }
+ else if ((lastGain > 8192) && (secLastGain > 8192) && ((tmp2 + 10) > 0 && tmp2 < 10))
+ {
+ *T0 = *T0;
+ }
+ else if ((minGain < 6554) && (lastGain == minGain) && (*T0 > minLag && *T0 < maxLag))
+ {
+ *T0 = *T0;
+ }
+ else if ((lagDif < 70) && (*T0 > minLag) && (*T0 < maxLag))
+ {
+ *T0 = *T0;
+ }
+ else if ((*T0 > meanLag) && (*T0 < maxLag))
+ {
+ *T0 = *T0;
+ }
+ else
+ {
+
+
+ if ((minGain > 8192) & (lagDif < 10))
+ {
+ *T0 = lag_hist[0];
+ }
+ else if ((lastGain > 8192) && (secLastGain > 8192))
+ {
+ *T0 = lag_hist[0];
+ }
+ else
+ {
+ /********SORT************/
+ /* The sorting of the lag history */
+ for (i = 0; i < L_LTPHIST; i++)
+ {
+ lag_hist2[i] = lag_hist[i];
+ }
+ insertion_sort(lag_hist2, 5);
+
+ /* Lag is weighted towards bigger lags */
+ /* and random variation is added */
+ lagDif = sub_int16(lag_hist2[4], lag_hist2[2]);
+
+ if (lagDif > 40)
+ {
+ lagDif = 40;
+ }
+
+ D = noise_gen_amrwb(seed); /* D={-1,.., 1} */
+ /* D2={-lagDif/2..lagDif/2} */
+ tmp = lagDif >> 1;
+ D2 = mult_int16(tmp, D);
+ tmp = add_int16(add_int16(lag_hist2[2], lag_hist2[3]), lag_hist2[4]);
+ *T0 = add_int16(mult_int16(tmp, ONE_PER_3), D2);
+ }
+ /* New lag is not allowed to be bigger or smaller than last lag values */
+
+ if (*T0 > maxLag)
+ {
+ *T0 = maxLag;
+ }
+
+ if (*T0 < minLag)
+ {
+ *T0 = minLag;
+ }
+ }
+ }
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void insertion_sort(int16 array[], int16 n)
+{
+ int16 i;
+
+ for (i = 0; i < n; i++)
+ {
+ insert(array, i, array[i]);
+ }
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void insert(int16 array[], int16 n, int16 x)
+{
+ int16 i;
+
+ for (i = (n - 1); i >= 0; i--)
+ {
+
+ if (x < array[i])
+ {
+ array[i + 1] = array[i];
+ }
+ else
+ {
+ break;
+ }
+ }
+ array[i + 1] = x;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: low_pass_filt_7k.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 signal[], input signal / output is divided by 16
+ int16 lg, lenght of signal
+ int16 mem[] in/out: memory (size=30)
+ int16 x[] scratch mem ( size= 60)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ 15th order high pass 7kHz FIR filter
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define L_FIR 30
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+const int16 fir_7k[L_FIR+1] =
+{
+ -21, 47, -89, 146, -203,
+ 229, -177, 0, 335, -839,
+ 1485, -2211, 2931, -3542, 3953,
+ 28682, 3953, -3542, 2931, -2211,
+ 1485, -839, 335, 0, -177,
+ 229, -203, 146, -89, 47,
+ -21
+};
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void low_pass_filt_7k_init(int16 mem[]) /* mem[30] */
+{
+ pv_memset((void *)mem, 0, (L_FIR)*sizeof(*mem));
+
+ return;
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void low_pass_filt_7k(
+ int16 signal[], /* input: signal */
+ int16 lg, /* input: length of input */
+ int16 mem[], /* in/out: memory (size=30) */
+ int16 x[]
+)
+{
+ int16 i, j;
+ int32 L_tmp1;
+ int32 L_tmp2;
+ int32 L_tmp3;
+ int32 L_tmp4;
+
+ pv_memcpy((void *)x, (void *)mem, (L_FIR)*sizeof(*x));
+
+ for (i = 0; i < lg >> 2; i++)
+ {
+ x[(i<<2) + L_FIR ] = signal[(i<<2)];
+ x[(i<<2) + L_FIR + 1] = signal[(i<<2)+1];
+ x[(i<<2) + L_FIR + 2] = signal[(i<<2)+2];
+ x[(i<<2) + L_FIR + 3] = signal[(i<<2)+3];
+
+ L_tmp1 = fxp_mac_16by16(x[(i<<2)] + signal[(i<<2)], fir_7k[0], 0x00004000);
+ L_tmp2 = fxp_mac_16by16(x[(i<<2)+1] + signal[(i<<2)+1], fir_7k[0], 0x00004000);
+ L_tmp3 = fxp_mac_16by16(x[(i<<2)+2] + signal[(i<<2)+2], fir_7k[0], 0x00004000);
+ L_tmp4 = fxp_mac_16by16(x[(i<<2)+3] + signal[(i<<2)+3], fir_7k[0], 0x00004000);
+
+ for (j = 1; j < L_FIR - 1; j += 4)
+ {
+
+
+ int16 tmp1 = x[(i<<2)+j ];
+ int16 tmp2 = x[(i<<2)+j+1];
+ int16 tmp3 = x[(i<<2)+j+2];
+
+ L_tmp1 = fxp_mac_16by16(tmp1, fir_7k[j ], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(tmp2, fir_7k[j ], L_tmp2);
+ L_tmp1 = fxp_mac_16by16(tmp2, fir_7k[j+1], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(tmp3, fir_7k[j+1], L_tmp2);
+ L_tmp3 = fxp_mac_16by16(tmp3, fir_7k[j ], L_tmp3);
+ L_tmp1 = fxp_mac_16by16(tmp3, fir_7k[j+2], L_tmp1);
+
+ tmp1 = x[(i<<2)+j+3];
+ tmp2 = x[(i<<2)+j+4];
+
+ L_tmp2 = fxp_mac_16by16(tmp1, fir_7k[j+2], L_tmp2);
+ L_tmp4 = fxp_mac_16by16(tmp1, fir_7k[j ], L_tmp4);
+ L_tmp3 = fxp_mac_16by16(tmp1, fir_7k[j+1], L_tmp3);
+ L_tmp1 = fxp_mac_16by16(tmp1, fir_7k[j+3], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(tmp2, fir_7k[j+3], L_tmp2);
+ L_tmp4 = fxp_mac_16by16(tmp2, fir_7k[j+1], L_tmp4);
+ L_tmp3 = fxp_mac_16by16(tmp2, fir_7k[j+2], L_tmp3);
+
+ tmp1 = x[(i<<2)+j+5];
+ tmp2 = x[(i<<2)+j+6];
+
+ L_tmp4 = fxp_mac_16by16(tmp1, fir_7k[j+2], L_tmp4);
+ L_tmp3 = fxp_mac_16by16(tmp1, fir_7k[j+3], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(tmp2, fir_7k[j+3], L_tmp4);
+
+ }
+
+ L_tmp1 = fxp_mac_16by16(x[(i<<2)+j ], fir_7k[j ], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(x[(i<<2)+j+1], fir_7k[j ], L_tmp2);
+ L_tmp3 = fxp_mac_16by16(x[(i<<2)+j+2], fir_7k[j ], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(x[(i<<2)+j+3], fir_7k[j ], L_tmp4);
+
+ signal[(i<<2)] = (int16)(L_tmp1 >> 15);
+ signal[(i<<2)+1] = (int16)(L_tmp2 >> 15);
+ signal[(i<<2)+2] = (int16)(L_tmp3 >> 15);
+ signal[(i<<2)+3] = (int16)(L_tmp4 >> 15);
+
+ }
+
+ pv_memcpy((void *)mem, (void *)(x + lg), (L_FIR)*sizeof(*mem));
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: median5.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ INPUT
+ X[-2:2] 16-bit integers.
+
+ RETURN VALUE
+ The median of {X[-2], X[-1],..., X[2]}.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Returns the median of the set {X[-2], X[-1],..., X[2]},
+ whose elements are 16-bit integers.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+#include "pvamrwb_math_op.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+int16 median5(int16 x[])
+{
+ int16 x1, x2, x3, x4, x5;
+ int16 tmp;
+
+ x1 = x[-2];
+ x2 = x[-1];
+ x3 = x[0];
+ x4 = x[1];
+ x5 = x[2];
+
+
+
+ if (x2 < x1)
+ {
+ tmp = x1;
+ x1 = x2;
+ x2 = tmp;
+ }
+ if (x3 < x1)
+ {
+ tmp = x1;
+ x1 = x3;
+ x3 = tmp;
+ }
+ if (x4 < x1)
+ {
+ tmp = x1;
+ x1 = x4;
+ x4 = tmp;
+ }
+ if (x5 < x1)
+ {
+ x5 = x1;
+ }
+ if (x3 < x2)
+ {
+ tmp = x2;
+ x2 = x3;
+ x3 = tmp;
+ }
+ if (x4 < x2)
+ {
+ tmp = x2;
+ x2 = x4;
+ x4 = tmp;
+ }
+ if (x5 < x2)
+ {
+ x5 = x2;
+ }
+ if (x4 < x3)
+ {
+ x3 = x4;
+ }
+ if (x5 < x3)
+ {
+ x3 = x5;
+ }
+ return (x3);
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+ Pathname: ./src/mime_io.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+ [input_variable_name] = [description of the input to module, its type
+ definition, and length (when applicable)]
+
+ Local Stores/Buffers/Pointers Needed:
+ [local_store_name] = [description of the local store, its type
+ definition, and length (when applicable)]
+ [local_buffer_name] = [description of the local buffer, its type
+ definition, and length (when applicable)]
+ [local_ptr_name] = [description of the local pointer, its type
+ definition, and length (when applicable)]
+
+ Global Stores/Buffers/Pointers Needed:
+ [global_store_name] = [description of the global store, its type
+ definition, and length (when applicable)]
+ [global_buffer_name] = [description of the global buffer, its type
+ definition, and length (when applicable)]
+ [global_ptr_name] = [description of the global pointer, its type
+ definition, and length (when applicable)]
+
+ Outputs:
+ [return_variable_name] = [description of data/pointer returned
+ by module, its type definition, and length
+ (when applicable)]
+
+ Pointers and Buffers Modified:
+ [variable_bfr_ptr] points to the [describe where the
+ variable_bfr_ptr points to, its type definition, and length
+ (when applicable)]
+ [variable_bfr] contents are [describe the new contents of
+ variable_bfr]
+
+ Local Stores Modified:
+ [local_store_name] = [describe new contents, its type
+ definition, and length (when applicable)]
+
+ Global Stores Modified:
+ [global_store_name] = [describe new contents, its type
+ definition, and length (when applicable)]
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ [Describe what the module does by using the variable names
+ listed in the Input and Output Definitions Section above.]
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ [List requirements to be satisfied by this module.]
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ [List all references used in designing this module.]
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+ ------------------------------------------------------------------------------
+ RESOURCES USED
+
+ STACK USAGE:
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES:
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_api.h"
+#include "pvamrwbdecoder.h"
+#include "pvamrwbdecoder_mem_funcs.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "dtx.h"
+#include "mime_io.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define MRSID 9
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+const uint8 toc_byte[16] = {0x04, 0x0C, 0x14, 0x1C, 0x24, 0x2C, 0x34, 0x3C,
+ 0x44, 0x4C, 0x54, 0x5C, 0x64, 0x6C, 0x74, 0x7C
+ };
+
+/* number of speech bits for all modes */
+const int16 unpacked_size[16] =
+{
+ 132, 177, 253, 285,
+ 317, 365, 397, 461,
+ 477, 35, 0, 0,
+ 0, 0, 0, 0
+};
+
+/* size of packed frame for each mode, excluding TOC byte */
+const int16 packed_size[16] = {17, 23, 32, 36, 40, 46, 50, 58,
+ 60, 5, 0, 0, 0, 0, 0, 0
+ };
+
+/* number of unused speech bits in packed format for each mode */
+const int16 unused_size[16] = {4, 7, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0};
+
+/* sorting tables for all modes */
+
+const int16 sort_660[132] =
+{
+ 0, 5, 6, 7, 61, 84, 107, 130, 62, 85,
+ 8, 4, 37, 38, 39, 40, 58, 81, 104, 127,
+ 60, 83, 106, 129, 108, 131, 128, 41, 42, 80,
+ 126, 1, 3, 57, 103, 82, 105, 59, 2, 63,
+ 109, 110, 86, 19, 22, 23, 64, 87, 18, 20,
+ 21, 17, 13, 88, 43, 89, 65, 111, 14, 24,
+ 25, 26, 27, 28, 15, 16, 44, 90, 66, 112,
+ 9, 11, 10, 12, 67, 113, 29, 30, 31, 32,
+ 34, 33, 35, 36, 45, 51, 68, 74, 91, 97,
+ 114, 120, 46, 69, 92, 115, 52, 75, 98, 121,
+ 47, 70, 93, 116, 53, 76, 99, 122, 48, 71,
+ 94, 117, 54, 77, 100, 123, 49, 72, 95, 118,
+ 55, 78, 101, 124, 50, 73, 96, 119, 56, 79,
+ 102, 125
+};
+
+const int16 sort_885[177] =
+{
+ 0, 4, 6, 7, 5, 3, 47, 48, 49, 112,
+ 113, 114, 75, 106, 140, 171, 80, 111, 145, 176,
+ 77, 108, 142, 173, 78, 109, 143, 174, 79, 110,
+ 144, 175, 76, 107, 141, 172, 50, 115, 51, 2,
+ 1, 81, 116, 146, 19, 21, 12, 17, 18, 20,
+ 16, 25, 13, 10, 14, 24, 23, 22, 26, 8,
+ 15, 52, 117, 31, 82, 147, 9, 33, 11, 83,
+ 148, 53, 118, 28, 27, 84, 149, 34, 35, 29,
+ 46, 32, 30, 54, 119, 37, 36, 39, 38, 40,
+ 85, 150, 41, 42, 43, 44, 45, 55, 60, 65,
+ 70, 86, 91, 96, 101, 120, 125, 130, 135, 151,
+ 156, 161, 166, 56, 87, 121, 152, 61, 92, 126,
+ 157, 66, 97, 131, 162, 71, 102, 136, 167, 57,
+ 88, 122, 153, 62, 93, 127, 158, 67, 98, 132,
+ 163, 72, 103, 137, 168, 58, 89, 123, 154, 63,
+ 94, 128, 159, 68, 99, 133, 164, 73, 104, 138,
+ 169, 59, 90, 124, 155, 64, 95, 129, 160, 69,
+ 100, 134, 165, 74, 105, 139, 170
+};
+
+const int16 sort_1265[253] =
+{
+ 0, 4, 6, 93, 143, 196, 246, 7, 5, 3,
+ 47, 48, 49, 50, 51, 150, 151, 152, 153, 154,
+ 94, 144, 197, 247, 99, 149, 202, 252, 96, 146,
+ 199, 249, 97, 147, 200, 250, 100, 203, 98, 148,
+ 201, 251, 95, 145, 198, 248, 52, 2, 1, 101,
+ 204, 155, 19, 21, 12, 17, 18, 20, 16, 25,
+ 13, 10, 14, 24, 23, 22, 26, 8, 15, 53,
+ 156, 31, 102, 205, 9, 33, 11, 103, 206, 54,
+ 157, 28, 27, 104, 207, 34, 35, 29, 46, 32,
+ 30, 55, 158, 37, 36, 39, 38, 40, 105, 208,
+ 41, 42, 43, 44, 45, 56, 106, 159, 209, 57,
+ 66, 75, 84, 107, 116, 125, 134, 160, 169, 178,
+ 187, 210, 219, 228, 237, 58, 108, 161, 211, 62,
+ 112, 165, 215, 67, 117, 170, 220, 71, 121, 174,
+ 224, 76, 126, 179, 229, 80, 130, 183, 233, 85,
+ 135, 188, 238, 89, 139, 192, 242, 59, 109, 162,
+ 212, 63, 113, 166, 216, 68, 118, 171, 221, 72,
+ 122, 175, 225, 77, 127, 180, 230, 81, 131, 184,
+ 234, 86, 136, 189, 239, 90, 140, 193, 243, 60,
+ 110, 163, 213, 64, 114, 167, 217, 69, 119, 172,
+ 222, 73, 123, 176, 226, 78, 128, 181, 231, 82,
+ 132, 185, 235, 87, 137, 190, 240, 91, 141, 194,
+ 244, 61, 111, 164, 214, 65, 115, 168, 218, 70,
+ 120, 173, 223, 74, 124, 177, 227, 79, 129, 182,
+ 232, 83, 133, 186, 236, 88, 138, 191, 241, 92,
+ 142, 195, 245
+};
+
+const int16 sort_1425[285] =
+{
+ 0, 4, 6, 101, 159, 220, 278, 7, 5, 3,
+ 47, 48, 49, 50, 51, 166, 167, 168, 169, 170,
+ 102, 160, 221, 279, 107, 165, 226, 284, 104, 162,
+ 223, 281, 105, 163, 224, 282, 108, 227, 106, 164,
+ 225, 283, 103, 161, 222, 280, 52, 2, 1, 109,
+ 228, 171, 19, 21, 12, 17, 18, 20, 16, 25,
+ 13, 10, 14, 24, 23, 22, 26, 8, 15, 53,
+ 172, 31, 110, 229, 9, 33, 11, 111, 230, 54,
+ 173, 28, 27, 112, 231, 34, 35, 29, 46, 32,
+ 30, 55, 174, 37, 36, 39, 38, 40, 113, 232,
+ 41, 42, 43, 44, 45, 56, 114, 175, 233, 62,
+ 120, 181, 239, 75, 133, 194, 252, 57, 115, 176,
+ 234, 63, 121, 182, 240, 70, 128, 189, 247, 76,
+ 134, 195, 253, 83, 141, 202, 260, 92, 150, 211,
+ 269, 84, 142, 203, 261, 93, 151, 212, 270, 85,
+ 143, 204, 262, 94, 152, 213, 271, 86, 144, 205,
+ 263, 95, 153, 214, 272, 64, 122, 183, 241, 77,
+ 135, 196, 254, 65, 123, 184, 242, 78, 136, 197,
+ 255, 87, 145, 206, 264, 96, 154, 215, 273, 58,
+ 116, 177, 235, 66, 124, 185, 243, 71, 129, 190,
+ 248, 79, 137, 198, 256, 88, 146, 207, 265, 97,
+ 155, 216, 274, 59, 117, 178, 236, 67, 125, 186,
+ 244, 72, 130, 191, 249, 80, 138, 199, 257, 89,
+ 147, 208, 266, 98, 156, 217, 275, 60, 118, 179,
+ 237, 68, 126, 187, 245, 73, 131, 192, 250, 81,
+ 139, 200, 258, 90, 148, 209, 267, 99, 157, 218,
+ 276, 61, 119, 180, 238, 69, 127, 188, 246, 74,
+ 132, 193, 251, 82, 140, 201, 259, 91, 149, 210,
+ 268, 100, 158, 219, 277
+};
+
+const int16 sort_1585[317] =
+{
+ 0, 4, 6, 109, 175, 244, 310, 7, 5, 3,
+ 47, 48, 49, 50, 51, 182, 183, 184, 185, 186,
+ 110, 176, 245, 311, 115, 181, 250, 316, 112, 178,
+ 247, 313, 113, 179, 248, 314, 116, 251, 114, 180,
+ 249, 315, 111, 177, 246, 312, 52, 2, 1, 117,
+ 252, 187, 19, 21, 12, 17, 18, 20, 16, 25,
+ 13, 10, 14, 24, 23, 22, 26, 8, 15, 53,
+ 188, 31, 118, 253, 9, 33, 11, 119, 254, 54,
+ 189, 28, 27, 120, 255, 34, 35, 29, 46, 32,
+ 30, 55, 190, 37, 36, 39, 38, 40, 121, 256,
+ 41, 42, 43, 44, 45, 56, 122, 191, 257, 63,
+ 129, 198, 264, 76, 142, 211, 277, 89, 155, 224,
+ 290, 102, 168, 237, 303, 57, 123, 192, 258, 70,
+ 136, 205, 271, 83, 149, 218, 284, 96, 162, 231,
+ 297, 62, 128, 197, 263, 75, 141, 210, 276, 88,
+ 154, 223, 289, 101, 167, 236, 302, 58, 124, 193,
+ 259, 71, 137, 206, 272, 84, 150, 219, 285, 97,
+ 163, 232, 298, 59, 125, 194, 260, 64, 130, 199,
+ 265, 67, 133, 202, 268, 72, 138, 207, 273, 77,
+ 143, 212, 278, 80, 146, 215, 281, 85, 151, 220,
+ 286, 90, 156, 225, 291, 93, 159, 228, 294, 98,
+ 164, 233, 299, 103, 169, 238, 304, 106, 172, 241,
+ 307, 60, 126, 195, 261, 65, 131, 200, 266, 68,
+ 134, 203, 269, 73, 139, 208, 274, 78, 144, 213,
+ 279, 81, 147, 216, 282, 86, 152, 221, 287, 91,
+ 157, 226, 292, 94, 160, 229, 295, 99, 165, 234,
+ 300, 104, 170, 239, 305, 107, 173, 242, 308, 61,
+ 127, 196, 262, 66, 132, 201, 267, 69, 135, 204,
+ 270, 74, 140, 209, 275, 79, 145, 214, 280, 82,
+ 148, 217, 283, 87, 153, 222, 288, 92, 158, 227,
+ 293, 95, 161, 230, 296, 100, 166, 235, 301, 105,
+ 171, 240, 306, 108, 174, 243, 309
+};
+
+const int16 sort_1825[365] =
+{
+ 0, 4, 6, 121, 199, 280, 358, 7, 5, 3,
+ 47, 48, 49, 50, 51, 206, 207, 208, 209, 210,
+ 122, 200, 281, 359, 127, 205, 286, 364, 124, 202,
+ 283, 361, 125, 203, 284, 362, 128, 287, 126, 204,
+ 285, 363, 123, 201, 282, 360, 52, 2, 1, 129,
+ 288, 211, 19, 21, 12, 17, 18, 20, 16, 25,
+ 13, 10, 14, 24, 23, 22, 26, 8, 15, 53,
+ 212, 31, 130, 289, 9, 33, 11, 131, 290, 54,
+ 213, 28, 27, 132, 291, 34, 35, 29, 46, 32,
+ 30, 55, 214, 37, 36, 39, 38, 40, 133, 292,
+ 41, 42, 43, 44, 45, 56, 134, 215, 293, 198,
+ 299, 136, 120, 138, 60, 279, 58, 62, 357, 139,
+ 140, 295, 156, 57, 219, 297, 63, 217, 137, 170,
+ 300, 222, 64, 106, 61, 78, 294, 92, 142, 141,
+ 135, 221, 296, 301, 343, 59, 298, 184, 329, 315,
+ 220, 216, 265, 251, 218, 237, 352, 223, 157, 86,
+ 171, 87, 164, 351, 111, 302, 65, 178, 115, 323,
+ 72, 192, 101, 179, 93, 73, 193, 151, 337, 309,
+ 143, 274, 69, 324, 165, 150, 97, 338, 110, 310,
+ 330, 273, 68, 107, 175, 245, 114, 79, 113, 189,
+ 246, 259, 174, 71, 185, 96, 344, 100, 322, 83,
+ 334, 316, 333, 252, 161, 348, 147, 82, 269, 232,
+ 260, 308, 353, 347, 163, 231, 306, 320, 188, 270,
+ 146, 177, 266, 350, 256, 85, 149, 116, 191, 160,
+ 238, 258, 336, 305, 255, 88, 224, 99, 339, 230,
+ 228, 227, 272, 242, 241, 319, 233, 311, 102, 74,
+ 180, 275, 66, 194, 152, 325, 172, 247, 244, 261,
+ 117, 158, 166, 354, 75, 144, 108, 312, 94, 186,
+ 303, 80, 234, 89, 195, 112, 340, 181, 345, 317,
+ 326, 276, 239, 167, 118, 313, 70, 355, 327, 253,
+ 190, 176, 271, 104, 98, 153, 103, 90, 76, 267,
+ 277, 248, 225, 262, 182, 84, 154, 235, 335, 168,
+ 331, 196, 341, 249, 162, 307, 148, 349, 263, 321,
+ 257, 243, 229, 356, 159, 119, 67, 187, 173, 145,
+ 240, 77, 304, 332, 314, 342, 109, 254, 81, 278,
+ 105, 91, 346, 318, 183, 250, 197, 328, 95, 155,
+ 169, 268, 226, 236, 264
+};
+
+const int16 sort_1985[397] =
+{
+ 0, 4, 6, 129, 215, 304, 390, 7, 5, 3,
+ 47, 48, 49, 50, 51, 222, 223, 224, 225, 226,
+ 130, 216, 305, 391, 135, 221, 310, 396, 132, 218,
+ 307, 393, 133, 219, 308, 394, 136, 311, 134, 220,
+ 309, 395, 131, 217, 306, 392, 52, 2, 1, 137,
+ 312, 227, 19, 21, 12, 17, 18, 20, 16, 25,
+ 13, 10, 14, 24, 23, 22, 26, 8, 15, 53,
+ 228, 31, 138, 313, 9, 33, 11, 139, 314, 54,
+ 229, 28, 27, 140, 315, 34, 35, 29, 46, 32,
+ 30, 55, 230, 37, 36, 39, 38, 40, 141, 316,
+ 41, 42, 43, 44, 45, 56, 142, 231, 317, 63,
+ 73, 92, 340, 82, 324, 149, 353, 159, 334, 165,
+ 338, 178, 163, 254, 77, 168, 257, 153, 343, 57,
+ 248, 238, 79, 252, 166, 67, 80, 201, 101, 267,
+ 143, 164, 341, 255, 339, 187, 376, 318, 78, 328,
+ 362, 115, 232, 242, 253, 290, 276, 62, 58, 158,
+ 68, 93, 179, 319, 148, 169, 154, 72, 385, 329,
+ 333, 344, 102, 83, 144, 233, 323, 124, 243, 192,
+ 354, 237, 64, 247, 202, 209, 150, 116, 335, 268,
+ 239, 299, 188, 196, 298, 94, 195, 258, 123, 363,
+ 384, 109, 325, 371, 170, 370, 84, 110, 295, 180,
+ 74, 210, 191, 106, 291, 205, 367, 381, 377, 206,
+ 355, 122, 119, 120, 383, 160, 105, 108, 277, 380,
+ 294, 284, 285, 345, 208, 269, 249, 366, 386, 300,
+ 297, 259, 125, 369, 197, 97, 194, 286, 211, 281,
+ 280, 183, 372, 87, 155, 283, 59, 348, 327, 184,
+ 76, 111, 330, 203, 349, 69, 98, 152, 145, 189,
+ 66, 320, 337, 173, 358, 251, 198, 174, 263, 262,
+ 126, 241, 193, 88, 388, 117, 95, 387, 112, 359,
+ 287, 244, 103, 272, 301, 171, 162, 234, 273, 127,
+ 373, 181, 292, 85, 378, 302, 121, 107, 364, 346,
+ 356, 212, 278, 213, 65, 382, 288, 207, 113, 175,
+ 99, 296, 374, 368, 199, 260, 185, 336, 331, 161,
+ 270, 264, 250, 240, 75, 350, 151, 60, 89, 321,
+ 156, 274, 360, 326, 70, 282, 167, 146, 352, 81,
+ 91, 389, 266, 245, 177, 235, 190, 256, 204, 342,
+ 128, 118, 303, 104, 379, 182, 114, 375, 200, 96,
+ 293, 172, 214, 365, 279, 86, 289, 351, 347, 357,
+ 261, 186, 176, 271, 90, 100, 147, 322, 275, 361,
+ 71, 332, 61, 265, 157, 246, 236
+};
+
+const int16 sort_2305[461] =
+{
+ 0, 4, 6, 145, 247, 352, 454, 7, 5, 3,
+ 47, 48, 49, 50, 51, 254, 255, 256, 257, 258,
+ 146, 248, 353, 455, 151, 253, 358, 460, 148, 250,
+ 355, 457, 149, 251, 356, 458, 152, 359, 150, 252,
+ 357, 459, 147, 249, 354, 456, 52, 2, 1, 153,
+ 360, 259, 19, 21, 12, 17, 18, 20, 16, 25,
+ 13, 10, 14, 24, 23, 22, 26, 8, 15, 53,
+ 260, 31, 154, 361, 9, 33, 11, 155, 362, 54,
+ 261, 28, 27, 156, 363, 34, 35, 29, 46, 32,
+ 30, 55, 262, 37, 36, 39, 38, 40, 157, 364,
+ 41, 42, 43, 44, 45, 56, 158, 263, 365, 181,
+ 192, 170, 79, 57, 399, 90, 159, 297, 377, 366,
+ 275, 68, 183, 388, 286, 194, 299, 92 , 70, 182,
+ 401, 172, 59, 91, 58, 400, 368, 161, 81, 160,
+ 264, 171, 80, 389, 390, 378, 379, 193, 298, 69,
+ 266, 265, 367, 277, 288, 276, 287, 184, 60, 195,
+ 82, 93, 71, 369, 402, 173, 162, 444, 300, 391,
+ 98, 76, 278, 61, 267, 374, 135, 411, 167, 102,
+ 380, 200, 87, 178, 65, 94, 204, 124, 72, 342,
+ 189, 305, 381, 396, 433, 301, 226, 407, 289, 237,
+ 113, 215, 185, 128, 309, 403, 116, 320, 196, 331,
+ 370, 422, 174, 64, 392, 83, 425, 219, 134, 188,
+ 432, 112, 427, 139, 279, 163, 436, 208, 447, 218,
+ 236, 229, 97, 294, 385, 230, 166, 268, 177, 443,
+ 225, 426, 101, 272, 138, 127, 290, 117, 347, 199,
+ 414, 95, 140, 240, 410, 395, 209, 129, 283, 346,
+ 105, 241, 437, 86, 308, 448, 203, 345, 186, 107,
+ 220, 415, 334, 319, 106, 313, 118, 123, 73, 207,
+ 421, 214, 384, 373, 438, 62, 371, 341, 75, 449,
+ 168, 323, 164, 242, 416, 324, 304, 197, 335, 404,
+ 271, 63, 191, 325, 96, 169, 231, 280, 312, 187,
+ 406, 84, 201, 100, 67, 382, 175, 336, 202, 330,
+ 269, 393, 376, 383, 293, 307, 409, 179, 285, 314,
+ 302, 372, 398, 190, 180, 89, 99, 103, 232, 78,
+ 88, 77, 136, 387, 165, 198, 394, 125, 176, 428,
+ 74, 375, 238, 227, 66, 273, 282, 141, 306, 412,
+ 114, 85, 130, 348, 119, 291, 296, 386, 233, 397,
+ 303, 405, 284, 445, 423, 221, 210, 205, 450, 108,
+ 274, 434, 216, 343, 337, 142, 243, 321, 408, 451,
+ 310, 292, 120, 109, 281, 439, 270, 429, 332, 295,
+ 418, 211, 315, 222, 326, 131, 430, 244, 327, 349,
+ 417, 316, 143, 338, 440, 234, 110, 212, 452, 245,
+ 121, 419, 350, 223, 132, 441, 328, 413, 317, 339,
+ 126, 104, 137, 446, 344, 239, 435, 115, 333, 206,
+ 322, 217, 228, 424, 453, 311, 351, 111, 442, 224,
+ 213, 122, 431, 340, 235, 246, 133, 144, 420, 329,
+ 318
+};
+
+const int16 sort_2385[477] =
+{
+ 0, 4, 6, 145, 251, 360, 466, 7, 5, 3,
+ 47, 48, 49, 50, 51, 262, 263, 264, 265, 266,
+ 146, 252, 361, 467, 151, 257, 366, 472, 148, 254,
+ 363, 469, 149, 255, 364, 470, 156, 371, 150, 256,
+ 365, 471, 147, 253, 362, 468, 52, 2, 1, 157,
+ 372, 267, 19, 21, 12, 17, 18, 20, 16, 25,
+ 13, 10, 14, 24, 23, 22, 26, 8, 15, 53,
+ 268, 31, 152, 153, 154, 155, 258, 259, 260, 261,
+ 367, 368, 369, 370, 473, 474, 475, 476, 158, 373,
+ 9, 33, 11, 159, 374, 54, 269, 28, 27, 160,
+ 375, 34, 35, 29, 46, 32, 30, 55, 270, 37,
+ 36, 39, 38, 40, 161, 376, 41, 42, 43, 44,
+ 45, 56, 162, 271, 377, 185, 196, 174, 79, 57,
+ 411, 90, 163, 305, 389, 378, 283, 68, 187, 400,
+ 294, 198, 307, 92, 70, 186, 413, 176, 59, 91,
+ 58, 412, 380, 165, 81, 164, 272, 175, 80, 401,
+ 402, 390, 391, 197, 306, 69, 274, 273, 379, 285,
+ 296, 284, 295, 188, 60, 199, 82, 93, 71, 381,
+ 414, 177, 166, 456, 308, 403, 98, 76, 286, 61,
+ 275, 386, 135, 423, 171, 102, 392, 204, 87, 182,
+ 65, 94, 208, 124, 72, 350, 193, 313, 393, 408,
+ 445, 309, 230, 419, 297, 241, 113, 219, 189, 128,
+ 317, 415, 116, 328, 200, 339, 382, 434, 178, 64,
+ 404, 83, 437, 223, 134, 192, 444, 112, 439, 139,
+ 287, 167, 448, 212, 459, 222, 240, 233, 97, 302,
+ 397, 234, 170, 276, 181, 455, 229, 438, 101, 280,
+ 138, 127, 298, 117, 355, 203, 426, 95, 140, 244,
+ 422, 407, 213, 129, 291, 354, 105, 245, 449, 86,
+ 316, 460, 207, 353, 190, 107, 224, 427, 342, 327,
+ 106, 321, 118, 123, 73, 211, 433, 218, 396, 385,
+ 450, 62, 383, 349, 75, 461, 172, 331, 168, 246,
+ 428, 332, 312, 201, 343, 416, 279, 63, 195, 333,
+ 96, 173, 235, 288, 320, 191, 418, 84, 205, 100,
+ 67, 394, 179, 344, 206, 338, 277, 405, 388, 395,
+ 301, 315, 421, 183, 293, 322, 310, 384, 410, 194,
+ 184, 89, 99, 103, 236, 78, 88, 77, 136, 399,
+ 169, 202, 406, 125, 180, 440, 74, 387, 242, 231,
+ 66, 281, 290, 141, 314, 424, 114, 85, 130, 356,
+ 119, 299, 304, 398, 237, 409, 311, 417, 292, 457,
+ 435, 225, 214, 209, 462, 108, 282, 446, 220, 351,
+ 345, 142, 247, 329, 420, 463, 318, 300, 120, 109,
+ 289, 451, 278, 441, 340, 303, 430, 215, 323, 226,
+ 334, 131, 442, 248, 335, 357, 429, 324, 143, 346,
+ 452, 238, 110, 216, 464, 249, 121, 431, 358, 227,
+ 132, 453, 336, 425, 325, 347, 126, 104, 137, 458,
+ 352, 243, 447, 115, 341, 210, 330, 221, 232, 436,
+ 465, 319, 359, 111, 454, 228, 217, 122, 443, 348,
+ 239, 250, 133, 144, 432, 337, 326
+};
+
+const int16 sort_SID[35] =
+{
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+ 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+ 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+ 30, 31, 32, 33, 34
+};
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void mime_unsorting(uint8 unsorted_bits[],
+ int16 sorted_bits_into_int16[],
+ int16 * frame_type,
+ int16 * mode,
+ uint8 quality,
+ RX_State *st)
+{
+
+ int16 i;
+ int16 j;
+ uint8 temp = 0;
+ uint8 *unsorted_bits_ptr = (uint8*)unsorted_bits;
+
+ /* pointer table for bit sorting tables */
+ const int16 *AmrWbSortingTables[16] =
+ {
+ sort_660, sort_885, sort_1265, sort_1425,
+ sort_1585, sort_1825, sort_1985, sort_2305,
+ sort_2385, sort_SID, NULL, NULL,
+ NULL, NULL, NULL, NULL
+ };
+
+ const int16 * pt_AmrWbSortingTables = AmrWbSortingTables[*mode];
+
+ /* clear compressed speech bit buffer */
+ pv_memset(sorted_bits_into_int16,
+ 0,
+ unpacked_size[*mode]*sizeof(*sorted_bits_into_int16));
+
+ /* unpack and unsort speech or SID bits */
+
+
+ for (i = unpacked_size[*mode] >> 3; i != 0; i--)
+ {
+ temp = *(unsorted_bits_ptr++);
+
+ for (j = 2; j != 0; j--)
+ {
+ switch (temp & 0xf0)
+ {
+ case 0xf0:
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ break;
+ case 0xe0:
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables++;
+ break;
+ case 0xd0:
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables++;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ break;
+ case 0xc0:
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables += 2;
+ break;
+ case 0xb0:
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables++;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ break;
+ case 0xa0:
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables++;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables++;
+ break;
+ case 0x90:
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables += 2;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ break;
+ case 0x80:
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables += 3;
+ break;
+ case 0x70:
+ pt_AmrWbSortingTables++;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ break;
+ case 0x60:
+ pt_AmrWbSortingTables++;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables++;
+ break;
+ case 0x50:
+ pt_AmrWbSortingTables++;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables++;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ break;
+ case 0x40:
+ pt_AmrWbSortingTables++;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables += 2;
+ break;
+ case 0x30:
+ pt_AmrWbSortingTables += 2;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ break;
+ case 0x20:
+ pt_AmrWbSortingTables += 2;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ pt_AmrWbSortingTables++;
+ break;
+ case 0x10:
+ pt_AmrWbSortingTables += 3;
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ break;
+ default:
+ pt_AmrWbSortingTables += 4;
+ break;
+ }
+ temp <<= 4;
+ }
+ }
+
+ if (unpacked_size[*mode] % 4)
+ {
+ temp <<= 1;
+
+ if (temp & 0x80)
+ {
+ sorted_bits_into_int16[*(pt_AmrWbSortingTables++)] = BIT_1;
+ }
+ }
+
+ /* set frame type */
+ switch (*mode)
+ {
+ case MODE_7k:
+ case MODE_9k:
+ case MODE_12k:
+ case MODE_14k:
+ case MODE_16k:
+ case MODE_18k:
+ case MODE_20k:
+ case MODE_23k:
+ case MODE_24k:
+ if (quality)
+ {
+ *frame_type = RX_SPEECH_GOOD;
+ }
+ else
+ {
+ *frame_type = RX_SPEECH_BAD;
+ }
+ break;
+
+ case MRSID:
+ if (quality)
+ {
+ if (temp & 0x80)
+ {
+ *frame_type = RX_SID_UPDATE;
+ }
+ else
+ {
+ *frame_type = RX_SID_FIRST;
+ }
+ }
+ else
+ {
+ *frame_type = RX_SID_BAD;
+ }
+
+ /* set mode index */
+ *mode = st->prev_mode;
+ break;
+ case 14: /* SPEECH_LOST */
+ *frame_type = RX_SPEECH_LOST;
+ *mode = st->prev_mode;
+ break;
+ case 15: /* NO_DATA */
+ *frame_type = RX_NO_DATA;
+ *mode = st->prev_mode;
+ break;
+ default: /* replace frame with unused mode index by NO_DATA frame */
+ *frame_type = RX_NO_DATA;
+ *mode = st->prev_mode;
+ break;
+ }
+
+ st->prev_mode = *mode;
+
+}
+
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./cpp/include/mime_io.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef MIME_IO_H
+#define MIME_IO_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+----------------------------------------------------------------------------*/
+
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+----------------------------------------------------------------------------*/
+extern const uint8 toc_byte[16];
+
+/* number of speech bits for all modes */
+extern const int16 unpacked_size[16];
+
+/* size of packed frame for each mode, excluding TOC byte */
+extern const int16 packed_size[16];
+
+/* number of unused speech bits in packed format for each mode */
+extern const int16 unused_size[16];
+
+/* sorting tables for all modes */
+
+extern const int16 sort_660[132];
+
+extern const int16 sort_885[177];
+
+extern const int16 sort_1265[253];
+
+extern const int16 sort_1425[285];
+
+extern const int16 sort_1585[317];
+
+extern const int16 sort_1825[365];
+
+extern const int16 sort_1985[397];
+
+extern const int16 sort_2305[461];
+
+extern const int16 sort_2385[477];
+
+extern const int16 sort_SID[35];
+
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
+
+#endif /* MIME_IO_H */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: noise_gen_amrwb.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 * seed seed for the random ng
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Signed 16 bits random generator
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+int16 noise_gen_amrwb(int16 * seed)
+{
+ /* int16 seed = 21845; */
+ *seed = (int16)fxp_mac_16by16(*seed, 31821, 13849L);
+
+ return (*seed);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: normalize_amr_wb.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+Input
+ Int32 x 32-bit integer non-zero input
+Returns
+ Int16 i number of leading zeros on x
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Returns number of leading zeros on the non-zero input
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "normalize_amr_wb.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+#if defined(PV_ARM_V5)
+#elif defined(PV_ARM_GCC_V5)
+
+/* function is inlined in header file */
+
+
+#else
+
+int16 normalize_amr_wb(int32 x)
+{
+ /*----------------------------------------------------------------------------
+ ; Define all local variables
+ ----------------------------------------------------------------------------*/
+ int16 i;
+
+
+ if (x > 0x0FFFFFFF)
+ {
+ i = 0; /* most likely case */
+ }
+ else if (x > 0x00FFFFFF)
+ {
+ i = 3; /* second most likely case */
+ }
+ else if (x > 0x0000FFFF)
+ {
+ i = x > 0x000FFFFF ? 7 : 11;
+ }
+ else
+ {
+ if (x > 0x000000FF)
+ {
+ i = x > 0x00000FFF ? 15 : 19;
+ }
+ else
+ {
+ i = x > 0x0000000F ? 23 : 27;
+ }
+ }
+
+
+ x <<= i;
+
+ switch (x & 0x78000000)
+ {
+ case 0x08000000:
+ i += 3;
+ break;
+
+ case 0x18000000:
+ case 0x10000000:
+ i += 2;
+ break;
+ case 0x28000000:
+ case 0x20000000:
+ case 0x38000000:
+ case 0x30000000:
+ i++;
+
+ default:
+ ;
+ }
+
+ return i;
+
+}
+
+#endif
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./c/include/normalize_amr_wb.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef NORMALIZE_AMR_WB_H
+#define NORMALIZE_AMR_WB_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES AND SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+#if defined(PV_ARM_V5)
+
+__inline int16 normalize_amr_wb(int32 x)
+{
+ int32 y;
+ __asm
+ {
+ clz y, x;
+ sub y, y, #1
+ }
+ return (y);
+}
+
+
+#elif defined(PV_ARM_GCC_V5)
+
+
+__inline int16 normalize_amr_wb(int32 x)
+{
+ register int32 y;
+ register int32 ra = x;
+
+
+ asm volatile(
+ "clz %0, %1\n\t"
+ "sub %0, %0, #1"
+ : "=&r*i"(y)
+ : "r"(ra));
+ return (y);
+
+}
+
+#else
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ int16 normalize_amr_wb(int32 x);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+
+
+#endif /* PV_NORMALIZE_H */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: oversamp_12k8_to_16k.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 signal[], input signal / output is divided by 16
+ int16 lg, lenght of signal
+ int16 mem[] in/out: memory (size=30)
+ int16 x[] scratch mem ( size= 60)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Oversamp_16k : oversampling from 12.8kHz to 16kHz.
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+#include "pvamrwbdecoder_cnst.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define FAC4 4
+#define FAC5 5
+#define INV_FAC5 6554 /* 1/5 in Q15 */
+#define DOWN_FAC 26215 /* 4/5 in Q15 */
+#define UP_FAC 20480 /* 5/4 in Q14 */
+#define NB_COEF_DOWN 15
+#define NB_COEF_UP 12
+#define N_LOOP_COEF_UP 4
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+ /* Local functions */
+
+ void AmrWbUp_samp(
+ int16 * sig_d, /* input: signal to oversampling */
+ int16 * sig_u, /* output: oversampled signal */
+ int16 L_frame /* input: length of output */
+ );
+
+
+ int16 AmrWbInterpol( /* return result of interpolation */
+ int16 * x, /* input vector */
+ const int16 * fir, /* filter coefficient */
+ int16 nb_coef /* number of coefficients */
+ );
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/* 1/5 resolution interpolation filter (in Q14) */
+/* -1.5dB @ 6kHz, -6dB @ 6.4kHz, -10dB @ 6.6kHz,
+ -20dB @ 6.9kHz, -25dB @ 7kHz, -55dB @ 8kHz */
+
+
+const int16 fir_up[4][24] =
+{
+
+ {
+ -1, 12, -33, 68, -119, 191,
+ -291, 430, -634, 963, -1616, 3792,
+ 15317, -2496, 1288, -809, 542, -369,
+ 247, -160, 96, -52, 23, -6,
+ },
+ {
+ -4, 24, -62, 124, -213, 338,
+ -510, 752, -1111, 1708, -2974, 8219,
+ 12368, -3432, 1881, -1204, 812, -552,
+ 368, -235, 139, -73, 30, -7,
+ },
+ {
+ -7, 30, -73, 139, -235, 368,
+ -552, 812, -1204, 1881, -3432, 12368,
+ 8219, -2974, 1708, -1111, 752, -510,
+ 338, -213, 124, -62, 24, -4,
+ },
+ {
+ -6, 23, -52, 96, -160, 247,
+ -369, 542, -809, 1288, -2496, 15317,
+ 3792, -1616, 963, -634, 430, -291,
+ 191, -119, 68, -33, 12, -1,
+ }
+};
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+/* output: memory (2*NB_COEF_UP) set to zeros */
+void oversamp_12k8_to_16k_init(int16 mem[])
+{
+ pv_memset((void *)mem, 0, (2*NB_COEF_UP)*sizeof(*mem));
+
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void oversamp_12k8_to_16k(
+ int16 sig12k8[], /* input: signal to oversampling */
+ int16 lg, /* input: length of input */
+ int16 sig16k[], /* output: oversampled signal */
+ int16 mem[], /* in/out: memory (2*NB_COEF_UP) */
+ int16 signal[]
+)
+{
+ int16 lg_up;
+
+ pv_memcpy((void *)signal,
+ (void *)mem,
+ (2*NB_COEF_UP)*sizeof(*mem));
+
+ pv_memcpy((void *)(signal + (2*NB_COEF_UP)),
+ (void *)sig12k8,
+ lg*sizeof(*sig12k8));
+
+ lg_up = lg + (lg >> 2); /* 5/4 of lg */
+
+ AmrWbUp_samp(signal + NB_COEF_UP, sig16k, lg_up);
+
+ pv_memcpy((void *)mem,
+ (void *)(signal + lg),
+ (2*NB_COEF_UP)*sizeof(*signal));
+
+ return;
+}
+
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void AmrWbUp_samp(
+ int16 * sig_d, /* input: signal to oversampling */
+ int16 * sig_u, /* output: oversampled signal */
+ int16 L_frame /* input: length of output */
+)
+{
+
+ int32 i;
+ int16 frac;
+ int16 * pt_sig_u = sig_u;
+
+ frac = 1;
+ for (int16 j = 0; j < L_frame; j++)
+ {
+ i = ((int32)j * INV_FAC5) >> 13; /* integer part = pos * 1/5 */
+
+ frac--;
+ if (frac)
+ {
+ *(pt_sig_u++) = AmrWbInterpol(&sig_d[i],
+ fir_up[(FAC5-1) - frac],
+ N_LOOP_COEF_UP);
+ }
+ else
+ {
+ *(pt_sig_u++) = sig_d[i+12 - NB_COEF_UP ];
+ frac = FAC5;
+ }
+ }
+
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+/* Fractional interpolation of signal at position (frac/resol) */
+
+
+int16 AmrWbInterpol( /* return result of interpolation */
+ int16 * x, /* input vector */
+ const int16 *fir, /* filter coefficient */
+ int16 nb_coef /* number of coefficients */
+)
+{
+ int32 L_sum;
+ const int16 *pt_fir = fir;
+
+ int16 tmp1, tmp2, tmp3, tmp4;
+ int16 *pt_x = x - nb_coef - (nb_coef << 1) + 1;
+
+
+ tmp1 = *(pt_x++);
+ tmp2 = *(pt_x++);
+ tmp3 = *(pt_x++);
+ tmp4 = *(pt_x++);
+ L_sum = fxp_mac_16by16(tmp1, *(pt_fir++), 0x00002000L);
+ L_sum = fxp_mac_16by16(tmp2, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp3, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp4, *(pt_fir++), L_sum);
+ tmp1 = *(pt_x++);
+ tmp2 = *(pt_x++);
+ tmp3 = *(pt_x++);
+ tmp4 = *(pt_x++);
+ L_sum = fxp_mac_16by16(tmp1, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp2, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp3, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp4, *(pt_fir++), L_sum);
+ tmp1 = *(pt_x++);
+ tmp2 = *(pt_x++);
+ tmp3 = *(pt_x++);
+ tmp4 = *(pt_x++);
+ L_sum = fxp_mac_16by16(tmp1, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp2, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp3, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp4, *(pt_fir++), L_sum);
+ tmp1 = *(pt_x++);
+ tmp2 = *(pt_x++);
+ tmp3 = *(pt_x++);
+ tmp4 = *(pt_x++);
+ L_sum = fxp_mac_16by16(tmp1, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp2, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp3, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp4, *(pt_fir++), L_sum);
+ tmp1 = *(pt_x++);
+ tmp2 = *(pt_x++);
+ tmp3 = *(pt_x++);
+ tmp4 = *(pt_x++);
+ L_sum = fxp_mac_16by16(tmp1, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp2, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp3, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp4, *(pt_fir++), L_sum);
+ tmp1 = *(pt_x++);
+ tmp2 = *(pt_x++);
+ tmp3 = *(pt_x++);
+ tmp4 = *(pt_x++);
+ L_sum = fxp_mac_16by16(tmp1, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp2, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp3, *(pt_fir++), L_sum);
+ L_sum = fxp_mac_16by16(tmp4, *(pt_fir++), L_sum);
+
+
+ L_sum = shl_int32(L_sum, 2); /* saturation can occur here */
+
+ return ((int16)(L_sum >> 16));
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: phase_dispersion.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 gain_code, (i) Q0 : gain of code
+ int16 gain_pit, (i) Q14 : gain of pitch
+ int16 code[], (i/o) : code vector
+ int16 mode, (i) : level, 0=hi, 1=lo, 2=off
+ int16 disp_mem[], (i/o) : static memory (size = 8)
+ int16 ScratchMem[]
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ post-processing to enhance noise in low bit rate.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_mem_funcs.h"
+#include "pvamrwbdecoder_acelp.h"
+#include "pvamrwb_math_op.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define pitch_0_9 14746 /* 0.9 in Q14 */
+#define pitch_0_6 9830 /* 0.6 in Q14 */
+#define L_SUBFR 64
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+/* impulse response with phase dispersion */
+
+/* 2.0 - 6.4 kHz phase dispersion */
+static const int16 ph_imp_low[L_SUBFR] =
+{
+ 20182, 9693, 3270, -3437, 2864, -5240, 1589, -1357,
+ 600, 3893, -1497, -698, 1203, -5249, 1199, 5371,
+ -1488, -705, -2887, 1976, 898, 721, -3876, 4227,
+ -5112, 6400, -1032, -4725, 4093, -4352, 3205, 2130,
+ -1996, -1835, 2648, -1786, -406, 573, 2484, -3608,
+ 3139, -1363, -2566, 3808, -639, -2051, -541, 2376,
+ 3932, -6262, 1432, -3601, 4889, 370, 567, -1163,
+ -2854, 1914, 39, -2418, 3454, 2975, -4021, 3431
+};
+
+/* 3.2 - 6.4 kHz phase dispersion */
+static const int16 ph_imp_mid[L_SUBFR] =
+{
+ 24098, 10460, -5263, -763, 2048, -927, 1753, -3323,
+ 2212, 652, -2146, 2487, -3539, 4109, -2107, -374,
+ -626, 4270, -5485, 2235, 1858, -2769, 744, 1140,
+ -763, -1615, 4060, -4574, 2982, -1163, 731, -1098,
+ 803, 167, -714, 606, -560, 639, 43, -1766,
+ 3228, -2782, 665, 763, 233, -2002, 1291, 1871,
+ -3470, 1032, 2710, -4040, 3624, -4214, 5292, -4270,
+ 1563, 108, -580, 1642, -2458, 957, 544, 2540
+};
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void phase_dispersion(
+ int16 gain_code, /* (i) Q0 : gain of code */
+ int16 gain_pit, /* (i) Q14 : gain of pitch */
+ int16 code[], /* (i/o) : code vector */
+ int16 mode, /* (i) : level, 0=hi, 1=lo, 2=off */
+ int16 disp_mem[], /* (i/o) : static memory (size = 8) */
+ int16 ScratchMem[]
+)
+{
+ int16 i, j, state;
+ int16 *prev_gain_pit, *prev_gain_code, *prev_state;
+ int16 *code2 = ScratchMem;
+
+ prev_state = disp_mem;
+ prev_gain_code = disp_mem + 1;
+ prev_gain_pit = disp_mem + 2;
+
+ pv_memset((void *)code2, 0, (2*L_SUBFR)*sizeof(*code2));
+
+
+ if (gain_pit < pitch_0_6)
+ {
+ state = 0;
+ }
+ else if (gain_pit < pitch_0_9)
+ {
+ state = 1;
+ }
+ else
+ {
+ state = 2;
+ }
+
+ for (i = 5; i > 0; i--)
+ {
+ prev_gain_pit[i] = prev_gain_pit[i - 1];
+ }
+ prev_gain_pit[0] = gain_pit;
+
+ if (sub_int16(gain_code, *prev_gain_code) > shl_int16(*prev_gain_code, 1))
+ {
+ /* onset */
+ if (state < 2)
+ {
+ state++;
+ }
+ }
+ else
+ {
+ j = 0;
+ for (i = 0; i < 6; i++)
+ {
+ if (prev_gain_pit[i] < pitch_0_6)
+ {
+ j++;
+ }
+ }
+
+ if (j > 2)
+ {
+ state = 0;
+ }
+ if (state > *prev_state + 1)
+ {
+ state--;
+ }
+ }
+
+ *prev_gain_code = gain_code;
+ *prev_state = state;
+
+ /* circular convolution */
+
+ state += mode; /* level of dispersion */
+
+ if (state == 0)
+ {
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ if (code[i] != 0)
+ {
+ for (j = 0; j < L_SUBFR; j++)
+ {
+ code2[i + j] = add_int16(code2[i + j], mult_int16_r(code[i], ph_imp_low[j]));
+ }
+ }
+ }
+ }
+ else if (state == 1)
+ {
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ if (code[i] != 0)
+ {
+ for (j = 0; j < L_SUBFR; j++)
+ {
+ code2[i + j] = add_int16(code2[i + j], mult_int16_r(code[i], ph_imp_mid[j]));
+ }
+ }
+ }
+ }
+ if (state < 2)
+ {
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ code[i] = add_int16(code2[i], code2[i + L_SUBFR]);
+ }
+ }
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pit_shrp.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 * x, in/out: impulse response (or algebraic code)
+ int16 pit_lag, input : pitch lag
+ int16 sharp, input : pitch sharpening factor (Q15)
+ int16 L_subfr input : subframe size
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Performs Pitch sharpening routine
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void Pit_shrp(
+ int16 * x, /* in/out: impulse response (or algebraic code) */
+ int16 pit_lag, /* input : pitch lag */
+ int16 sharp, /* input : pitch sharpening factor (Q15) */
+ int16 L_subfr /* input : subframe size */
+)
+{
+ int16 i;
+ int32 L_tmp;
+
+ for (i = pit_lag; i < L_subfr; i++)
+ {
+ L_tmp = mac_16by16_to_int32((int32)x[i] << 16, x[i - pit_lag], sharp);
+ x[i] = amr_wb_round(L_tmp);
+
+ }
+
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pred_lt4.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 signal[], input signal / output is divided by 16
+ int16 lg, lenght of signal
+ int16 mem[] in/out: memory (size=30)
+ int16 x[] scratch mem ( size= 60)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Compute the result of long term prediction with fractionnal
+ interpolation of resolution 1/4.
+
+ On return exc[0..L_subfr-1] contains the interpolated signal
+ (adaptive codebook excitation)
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define UP_SAMP 4
+#define L_INTERPOL2 16
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/* 1/4 resolution interpolation filter (-3 dB at 0.856*fs/2) in Q14 */
+
+
+const int16 inter4_2[UP_SAMP][ 2*L_INTERPOL2] =
+{
+ {
+ 0, -2, 4, -2, -10, 38,
+ -88, 165, -275, 424, -619, 871,
+ -1207, 1699, -2598, 5531, 14031, -2147,
+ 780, -249, -16, 153, -213, 226,
+ -209, 175, -133, 91, -55, 28,
+ -10, 2
+ },
+ {
+ 1, -7, 19, -33, 47, -52,
+ 43, -9, -60, 175, -355, 626,
+ -1044, 1749, -3267, 10359, 10359, -3267,
+ 1749, -1044, 626, -355, 175, -60,
+ -9, 43, -52, 47, -33, 19,
+ -7, 1
+ },
+ {
+ 2, -10, 28, -55, 91, -133,
+ 175, -209, 226, -213, 153, -16,
+ -249, 780, -2147, 14031, 5531, -2598,
+ 1699, -1207, 871, -619, 424, -275,
+ 165, -88, 38, -10, -2, 4,
+ -2, 0
+ },
+ {
+ 1, -7, 22, -49, 92, -153,
+ 231, -325, 431, -544, 656, -762,
+ 853, -923, 968, 15401, 968, -923,
+ 853, -762, 656, -544, 431, -325,
+ 231, -153, 92, -49, 22, -7,
+ 1, 0
+ }
+};
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void Pred_lt4(
+ int16 exc[], /* in/out: excitation buffer */
+ int16 T0, /* input : integer pitch lag */
+ int16 frac, /* input : fraction of lag */
+ int16 L_subfr /* input : subframe size */
+)
+{
+ int16 i, j, *pt_exc;
+ int32 L_sum1;
+ int32 L_sum2;
+ int32 L_sum3;
+ int32 L_sum4;
+ pt_exc = &exc[-T0];
+
+ const int16 *pt_inter4_2;
+
+ frac = -frac;
+
+ if (frac < 0)
+ {
+ frac += UP_SAMP;
+ pt_exc--;
+
+ }
+ pt_exc -= (L_INTERPOL2 - 1);
+
+ pt_inter4_2 = inter4_2[UP_SAMP-1 - frac];
+
+ for (j = 0; j < (L_subfr >> 2); j++)
+ {
+
+ L_sum1 = 0x00002000; /* pre-roundig */
+ L_sum2 = 0x00002000;
+ L_sum3 = 0x00002000;
+ L_sum4 = 0x00002000;
+
+ for (i = 0; i < L_INTERPOL2 << 1; i += 4)
+ {
+ int16 tmp1 = pt_exc[i ];
+ int16 tmp2 = pt_exc[i+1];
+ int16 tmp3 = pt_exc[i+2];
+
+
+ L_sum1 = fxp_mac_16by16(tmp1, pt_inter4_2[i ], L_sum1);
+ L_sum2 = fxp_mac_16by16(tmp2, pt_inter4_2[i ], L_sum2);
+ L_sum1 = fxp_mac_16by16(tmp2, pt_inter4_2[i+1], L_sum1);
+ L_sum2 = fxp_mac_16by16(tmp3, pt_inter4_2[i+1], L_sum2);
+ L_sum3 = fxp_mac_16by16(tmp3, pt_inter4_2[i ], L_sum3);
+ L_sum1 = fxp_mac_16by16(tmp3, pt_inter4_2[i+2], L_sum1);
+
+ tmp1 = pt_exc[i+3];
+ tmp2 = pt_exc[i+4];
+
+ L_sum4 = fxp_mac_16by16(tmp1, pt_inter4_2[i ], L_sum4);
+ L_sum3 = fxp_mac_16by16(tmp1, pt_inter4_2[i+1], L_sum3);
+ L_sum2 = fxp_mac_16by16(tmp1, pt_inter4_2[i+2], L_sum2);
+ L_sum1 = fxp_mac_16by16(tmp1, pt_inter4_2[i+3], L_sum1);
+ L_sum4 = fxp_mac_16by16(tmp2, pt_inter4_2[i+1], L_sum4);
+ L_sum2 = fxp_mac_16by16(tmp2, pt_inter4_2[i+3], L_sum2);
+ L_sum3 = fxp_mac_16by16(tmp2, pt_inter4_2[i+2], L_sum3);
+
+ tmp1 = pt_exc[i+5];
+ tmp2 = pt_exc[i+6];
+
+ L_sum4 = fxp_mac_16by16(tmp1, pt_inter4_2[i+2], L_sum4);
+ L_sum3 = fxp_mac_16by16(tmp1, pt_inter4_2[i+3], L_sum3);
+ L_sum4 = fxp_mac_16by16(tmp2, pt_inter4_2[i+3], L_sum4);
+
+ }
+
+
+
+ exc[(j<<2)] = (int16)(L_sum1 >> 14);
+ exc[(j<<2)+1] = (int16)(L_sum2 >> 14);
+ exc[(j<<2)+2] = (int16)(L_sum3 >> 14);
+ exc[(j<<2)+3] = (int16)(L_sum4 >> 14);
+
+ pt_exc += 4;
+
+ }
+
+ if (L_subfr&1)
+ {
+ L_sum1 = 0x00002000;
+
+ for (i = 0; i < 2*L_INTERPOL2; i += 4)
+ {
+ int16 tmp1 = pt_exc[i ];
+ int16 tmp2 = pt_exc[i+1];
+ L_sum1 = fxp_mac_16by16(tmp1, pt_inter4_2[i ], L_sum1);
+ L_sum1 = fxp_mac_16by16(tmp2, pt_inter4_2[i+1], L_sum1);
+ tmp1 = pt_exc[i+2];
+ tmp2 = pt_exc[i+3];
+ L_sum1 = fxp_mac_16by16(tmp1, pt_inter4_2[i+2], L_sum1);
+ L_sum1 = fxp_mac_16by16(tmp2, pt_inter4_2[i+3], L_sum1);
+
+ }
+
+ exc[(j<<2)] = (int16)((L_sum1) >> 14);
+
+ }
+
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: preemph_amrwb_dec.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 x[], (i/o) : input signal overwritten by the output
+ int16 mu, (i) Q15 : preemphasis coefficient
+ int16 lg (i) : lenght of filtering
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Preemphasis: filtering through 1 - g z^-1
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void preemph_amrwb_dec(
+ int16 x[], /* (i/o) : input signal overwritten by the output */
+ int16 mu, /* (i) Q15 : preemphasis coefficient */
+ int16 lg /* (i) : lenght of filtering */
+)
+{
+ int16 i;
+ int32 L_tmp;
+
+ for (i = lg - 1; i != 0; i--)
+ {
+ L_tmp = msu_16by16_from_int32((int32)x[i] << 16, x[i - 1], mu);
+ x[i] = amr_wb_round(L_tmp);
+ }
+
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./cpp/include/pv_amr_wb_type_defs.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file was derived from a number of standards bodies. The type
+ definitions below were created from some of the best practices observed
+ in the standards bodies.
+
+ This file is dependent on limits.h for defining the bit widths. In an
+ ANSI C environment limits.h is expected to always be present and contain
+ the following definitions:
+
+ SCHAR_MIN
+ SCHAR_MAX
+ UCHAR_MAX
+
+ INT_MAX
+ INT_MIN
+ UINT_MAX
+
+ SHRT_MIN
+ SHRT_MAX
+ USHRT_MAX
+
+ LONG_MIN
+ LONG_MAX
+ ULONG_MAX
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef PV_AMR_WB_TYPE_DEFS_H
+#define PV_AMR_WB_TYPE_DEFS_H
+
+#include "oscl_base.h"
+
+
+#ifndef Word8
+typedef int8 Word8;
+#endif
+
+#ifndef UWord8
+typedef uint8 UWord8;
+#endif
+
+/*----------------------------------------------------------------------------
+; Define generic signed and unsigned int
+----------------------------------------------------------------------------*/
+#ifndef Int
+typedef signed int Int;
+#endif
+
+#ifndef UInt
+typedef unsigned int UInt;
+#endif
+
+
+/*----------------------------------------------------------------------------
+; Define 16 bit signed and unsigned words
+----------------------------------------------------------------------------*/
+
+#ifndef INT16_MIN
+#define INT16_MIN (-32768)
+#endif
+
+#ifndef INT16_MAX
+#define INT16_MAX 32767
+#endif
+
+/*----------------------------------------------------------------------------
+; Define 32 bit signed and unsigned words
+----------------------------------------------------------------------------*/
+
+
+
+#ifndef INT32_MIN
+#define INT32_MIN (-2147483647 - 1)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX 2147483647
+#endif
+
+
+#ifndef UINT32_MIN
+#define UINT32_MIN 0
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX 0xffffffff
+#endif
+
+
+#ifndef INT_MAX
+#define INT_MAX INT32_MAX /* for 32 bit */
+#endif
+
+/*----------------------------------------------------------------------------
+; Define 64 bit signed and unsigned words
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; Define boolean type
+----------------------------------------------------------------------------*/
+
+#ifndef Flag
+typedef Int Flag;
+#endif
+
+#ifndef Bool
+typedef Int Bool;
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef OFF
+#define OFF 0
+#endif
+#ifndef ON
+#define ON 1
+#endif
+
+#ifndef NO
+#define NO 0
+#endif
+#ifndef YES
+#define YES 1
+#endif
+
+#ifndef SUCCESS
+#define SUCCESS 0
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+
+#endif /* PV_AMR_WB_TYPE_DEFS_H */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*___________________________________________________________________________
+
+ This file contains mathematic operations in fixed point.
+
+ mult_int16_r() : Same as mult_int16 with rounding
+ shr_rnd() : Same as shr(var1,var2) but with rounding
+ div_16by16() : fractional integer division
+ one_ov_sqrt() : Compute 1/sqrt(L_x)
+ one_ov_sqrt_norm() : Compute 1/sqrt(x)
+ power_of_2() : power of 2
+ Dot_product12() : Compute scalar product of <x[],y[]> using accumulator
+ Isqrt() : inverse square root (16 bits precision).
+ amrwb_log_2() : log2 (16 bits precision).
+
+ These operations are not standard double precision operations.
+ They are used where low complexity is important and the full 32 bits
+ precision is not necessary. For example, the function Div_32() has a
+ 24 bits precision which is enough for our purposes.
+
+ In this file, the values use theses representations:
+
+ int32 L_32 : standard signed 32 bits format
+ int16 hi, lo : L_32 = hi<<16 + lo<<1 (DPF - Double Precision Format)
+ int32 frac, int16 exp : L_32 = frac << exp-31 (normalised format)
+ int16 int, frac : L_32 = int.frac (fractional format)
+ ----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwb_math_op.h"
+
+
+/*----------------------------------------------------------------------------
+
+ Function Name : mult_int16_r
+
+ Purpose :
+
+ Same as mult_int16 with rounding, i.e.:
+ mult_int16_r(var1,var2) = extract_l(L_shr(((var1 * var2) + 16384),15)) and
+ mult_int16_r(-32768,-32768) = 32767.
+
+ Complexity weight : 2
+
+ Inputs :
+
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ Outputs :
+
+ none
+
+ Return Value :
+
+ var_out
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var_out <= 0x0000 7fff.
+ ----------------------------------------------------------------------------*/
+
+int16 mult_int16_r(int16 var1, int16 var2)
+{
+ int32 L_product_arr;
+
+ L_product_arr = (int32) var1 * (int32) var2; /* product */
+ L_product_arr += (int32) 0x00004000L; /* round */
+ L_product_arr >>= 15; /* shift */
+ if ((L_product_arr >> 15) != (L_product_arr >> 31))
+ {
+ L_product_arr = (L_product_arr >> 31) ^ MAX_16;
+ }
+
+ return ((int16)L_product_arr);
+}
+
+
+
+/*----------------------------------------------------------------------------
+
+ Function Name : shr_rnd
+
+ Purpose :
+
+ Same as shr(var1,var2) but with rounding. Saturate the result in case of|
+ underflows or overflows :
+ - If var2 is greater than zero :
+ if (sub(shl_int16(shr(var1,var2),1),shr(var1,sub(var2,1))))
+ is equal to zero
+ then
+ shr_rnd(var1,var2) = shr(var1,var2)
+ else
+ shr_rnd(var1,var2) = add_int16(shr(var1,var2),1)
+ - If var2 is less than or equal to zero :
+ shr_rnd(var1,var2) = shr(var1,var2).
+
+ Complexity weight : 2
+
+ Inputs :
+
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0x0000 0000 <= var2 <= 0x0000 7fff.
+
+ Outputs :
+
+ none
+
+ Return Value :
+
+ var_out
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var_out <= 0x0000 7fff.
+ ----------------------------------------------------------------------------*/
+
+int16 shr_rnd(int16 var1, int16 var2)
+{
+ int16 var_out;
+
+ var_out = (int16)(var1 >> (var2 & 0xf));
+ if (var2)
+ {
+ if ((var1 & ((int16) 1 << (var2 - 1))) != 0)
+ {
+ var_out++;
+ }
+ }
+ return (var_out);
+}
+
+
+/*----------------------------------------------------------------------------
+
+ Function Name : div_16by16
+
+ Purpose :
+
+ Produces a result which is the fractional integer division of var1 by
+ var2; var1 and var2 must be positive and var2 must be greater or equal
+ to var1; the result is positive (leading bit equal to 0) and truncated
+ to 16 bits.
+ If var1 = var2 then div(var1,var2) = 32767.
+
+ Complexity weight : 18
+
+ Inputs :
+
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0x0000 0000 <= var1 <= var2 and var2 != 0.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : var1 <= var2 <= 0x0000 7fff and var2 != 0.
+
+ Outputs :
+
+ none
+
+ Return Value :
+
+ var_out
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0x0000 0000 <= var_out <= 0x0000 7fff.
+ It's a Q15 value (point between b15 and b14).
+ ----------------------------------------------------------------------------*/
+
+int16 div_16by16(int16 var1, int16 var2)
+{
+
+ int16 var_out = 0;
+ register int16 iteration;
+ int32 L_num;
+ int32 L_denom;
+ int32 L_denom_by_2;
+ int32 L_denom_by_4;
+
+ if ((var1 > var2) || (var1 < 0))
+ {
+ return 0; // used to exit(0);
+ }
+ if (var1)
+ {
+ if (var1 != var2)
+ {
+
+ L_num = (int32) var1;
+ L_denom = (int32) var2;
+ L_denom_by_2 = (L_denom << 1);
+ L_denom_by_4 = (L_denom << 2);
+ for (iteration = 5; iteration > 0; iteration--)
+ {
+ var_out <<= 3;
+ L_num <<= 3;
+
+ if (L_num >= L_denom_by_4)
+ {
+ L_num -= L_denom_by_4;
+ var_out |= 4;
+ }
+
+ if (L_num >= L_denom_by_2)
+ {
+ L_num -= L_denom_by_2;
+ var_out |= 2;
+ }
+
+ if (L_num >= (L_denom))
+ {
+ L_num -= (L_denom);
+ var_out |= 1;
+ }
+
+ }
+ }
+ else
+ {
+ var_out = MAX_16;
+ }
+ }
+
+ return (var_out);
+
+}
+
+
+
+/*----------------------------------------------------------------------------
+
+ Function Name : one_ov_sqrt
+
+ Compute 1/sqrt(L_x).
+ if L_x is negative or zero, result is 1 (7fffffff).
+
+ Algorithm:
+
+ 1- Normalization of L_x.
+ 2- call Isqrt_n(L_x, exponant)
+ 3- L_y = L_x << exponant
+ ----------------------------------------------------------------------------*/
+int32 one_ov_sqrt( /* (o) Q31 : output value (range: 0<=val<1) */
+ int32 L_x /* (i) Q0 : input value (range: 0<=val<=7fffffff) */
+)
+{
+ int16 exp;
+ int32 L_y;
+
+ exp = normalize_amr_wb(L_x);
+ L_x <<= exp; /* L_x is normalized */
+ exp = 31 - exp;
+
+ one_ov_sqrt_norm(&L_x, &exp);
+
+ L_y = shl_int32(L_x, exp); /* denormalization */
+
+ return (L_y);
+}
+
+/*----------------------------------------------------------------------------
+
+ Function Name : one_ov_sqrt_norm
+
+ Compute 1/sqrt(value).
+ if value is negative or zero, result is 1 (frac=7fffffff, exp=0).
+
+ Algorithm:
+
+ The function 1/sqrt(value) is approximated by a table and linear
+ interpolation.
+
+ 1- If exponant is odd then shift fraction right once.
+ 2- exponant = -((exponant-1)>>1)
+ 3- i = bit25-b30 of fraction, 16 <= i <= 63 ->because of normalization.
+ 4- a = bit10-b24
+ 5- i -=16
+ 6- fraction = table[i]<<16 - (table[i] - table[i+1]) * a * 2
+ ----------------------------------------------------------------------------*/
+static const int16 table_isqrt[49] =
+{
+ 32767, 31790, 30894, 30070, 29309, 28602, 27945, 27330, 26755, 26214,
+ 25705, 25225, 24770, 24339, 23930, 23541, 23170, 22817, 22479, 22155,
+ 21845, 21548, 21263, 20988, 20724, 20470, 20225, 19988, 19760, 19539,
+ 19326, 19119, 18919, 18725, 18536, 18354, 18176, 18004, 17837, 17674,
+ 17515, 17361, 17211, 17064, 16921, 16782, 16646, 16514, 16384
+};
+
+void one_ov_sqrt_norm(
+ int32 * frac, /* (i/o) Q31: normalized value (1.0 < frac <= 0.5) */
+ int16 * exp /* (i/o) : exponent (value = frac x 2^exponent) */
+)
+{
+ int16 i, a, tmp;
+
+
+ if (*frac <= (int32) 0)
+ {
+ *exp = 0;
+ *frac = 0x7fffffffL;
+ return;
+ }
+
+ if ((*exp & 1) == 1) /* If exponant odd -> shift right */
+ *frac >>= 1;
+
+ *exp = negate_int16((*exp - 1) >> 1);
+
+ *frac >>= 9;
+ i = extract_h(*frac); /* Extract b25-b31 */
+ *frac >>= 1;
+ a = (int16)(*frac); /* Extract b10-b24 */
+ a = (int16)(a & (int16) 0x7fff);
+
+ i -= 16;
+
+ *frac = L_deposit_h(table_isqrt[i]); /* table[i] << 16 */
+ tmp = table_isqrt[i] - table_isqrt[i + 1]; /* table[i] - table[i+1]) */
+
+ *frac = msu_16by16_from_int32(*frac, tmp, a); /* frac -= tmp*a*2 */
+
+ return;
+}
+
+/*----------------------------------------------------------------------------
+
+ Function Name : power_2()
+
+ L_x = pow(2.0, exponant.fraction) (exponant = interger part)
+ = pow(2.0, 0.fraction) << exponant
+
+ Algorithm:
+
+ The function power_2(L_x) is approximated by a table and linear
+ interpolation.
+
+ 1- i = bit10-b15 of fraction, 0 <= i <= 31
+ 2- a = bit0-b9 of fraction
+ 3- L_x = table[i]<<16 - (table[i] - table[i+1]) * a * 2
+ 4- L_x = L_x >> (30-exponant) (with rounding)
+ ----------------------------------------------------------------------------*/
+const int16 table_pow2[33] =
+{
+ 16384, 16743, 17109, 17484, 17867, 18258, 18658, 19066, 19484, 19911,
+ 20347, 20792, 21247, 21713, 22188, 22674, 23170, 23678, 24196, 24726,
+ 25268, 25821, 26386, 26964, 27554, 28158, 28774, 29405, 30048, 30706,
+ 31379, 32066, 32767
+};
+
+int32 power_of_2( /* (o) Q0 : result (range: 0<=val<=0x7fffffff) */
+ int16 exponant, /* (i) Q0 : Integer part. (range: 0<=val<=30) */
+ int16 fraction /* (i) Q15 : Fractionnal part. (range: 0.0<=val<1.0) */
+)
+{
+ int16 exp, i, a, tmp;
+ int32 L_x;
+
+ L_x = fraction << 5; /* L_x = fraction<<6 */
+ i = (fraction >> 10); /* Extract b10-b16 of fraction */
+ a = (int16)(L_x); /* Extract b0-b9 of fraction */
+ a = (int16)(a & (int16) 0x7fff);
+
+ L_x = ((int32)table_pow2[i]) << 15; /* table[i] << 16 */
+ tmp = table_pow2[i] - table_pow2[i + 1]; /* table[i] - table[i+1] */
+ L_x -= ((int32)tmp * a); /* L_x -= tmp*a*2 */
+
+ exp = 29 - exponant ;
+
+ if (exp)
+ {
+ L_x = ((L_x >> exp) + ((L_x >> (exp - 1)) & 1));
+ }
+
+ return (L_x);
+}
+
+/*----------------------------------------------------------------------------
+ *
+ * Function Name : Dot_product12()
+ *
+ * Compute scalar product of <x[],y[]> using accumulator.
+ *
+ * The result is normalized (in Q31) with exponent (0..30).
+ *
+ * Algorithm:
+ *
+ * dot_product = sum(x[i]*y[i]) i=0..N-1
+ ----------------------------------------------------------------------------*/
+
+int32 Dot_product12( /* (o) Q31: normalized result (1 < val <= -1) */
+ int16 x[], /* (i) 12bits: x vector */
+ int16 y[], /* (i) 12bits: y vector */
+ int16 lg, /* (i) : vector length */
+ int16 * exp /* (o) : exponent of result (0..+30) */
+)
+{
+ int16 i, sft;
+ int32 L_sum;
+ int16 *pt_x = x;
+ int16 *pt_y = y;
+
+ L_sum = 1L;
+
+
+ for (i = lg >> 3; i != 0; i--)
+ {
+ L_sum = mac_16by16_to_int32(L_sum, *(pt_x++), *(pt_y++));
+ L_sum = mac_16by16_to_int32(L_sum, *(pt_x++), *(pt_y++));
+ L_sum = mac_16by16_to_int32(L_sum, *(pt_x++), *(pt_y++));
+ L_sum = mac_16by16_to_int32(L_sum, *(pt_x++), *(pt_y++));
+ L_sum = mac_16by16_to_int32(L_sum, *(pt_x++), *(pt_y++));
+ L_sum = mac_16by16_to_int32(L_sum, *(pt_x++), *(pt_y++));
+ L_sum = mac_16by16_to_int32(L_sum, *(pt_x++), *(pt_y++));
+ L_sum = mac_16by16_to_int32(L_sum, *(pt_x++), *(pt_y++));
+ }
+
+ /* Normalize acc in Q31 */
+
+ sft = normalize_amr_wb(L_sum);
+ L_sum <<= sft;
+
+ *exp = 30 - sft; /* exponent = 0..30 */
+
+ return (L_sum);
+}
+
+/* Table for Log2() */
+const int16 Log2_norm_table[33] =
+{
+ 0, 1455, 2866, 4236, 5568, 6863, 8124, 9352, 10549, 11716,
+ 12855, 13967, 15054, 16117, 17156, 18172, 19167, 20142, 21097, 22033,
+ 22951, 23852, 24735, 25603, 26455, 27291, 28113, 28922, 29716, 30497,
+ 31266, 32023, 32767
+};
+
+/*----------------------------------------------------------------------------
+ *
+ * FUNCTION: Lg2_normalized()
+ *
+ * PURPOSE: Computes log2(L_x, exp), where L_x is positive and
+ * normalized, and exp is the normalisation exponent
+ * If L_x is negative or zero, the result is 0.
+ *
+ * DESCRIPTION:
+ * The function Log2(L_x) is approximated by a table and linear
+ * interpolation. The following steps are used to compute Log2(L_x)
+ *
+ * 1- exponent = 30-norm_exponent
+ * 2- i = bit25-b31 of L_x; 32<=i<=63 (because of normalization).
+ * 3- a = bit10-b24
+ * 4- i -=32
+ * 5- fraction = table[i]<<16 - (table[i] - table[i+1]) * a * 2
+ *
+----------------------------------------------------------------------------*/
+void Lg2_normalized(
+ int32 L_x, /* (i) : input value (normalized) */
+ int16 exp, /* (i) : norm_l (L_x) */
+ int16 *exponent, /* (o) : Integer part of Log2. (range: 0<=val<=30) */
+ int16 *fraction /* (o) : Fractional part of Log2. (range: 0<=val<1) */
+)
+{
+ int16 i, a, tmp;
+ int32 L_y;
+
+ if (L_x <= (int32) 0)
+ {
+ *exponent = 0;
+ *fraction = 0;;
+ return;
+ }
+
+ *exponent = 30 - exp;
+
+ L_x >>= 9;
+ i = extract_h(L_x); /* Extract b25-b31 */
+ L_x >>= 1;
+ a = (int16)(L_x); /* Extract b10-b24 of fraction */
+ a &= 0x7fff;
+
+ i -= 32;
+
+ L_y = L_deposit_h(Log2_norm_table[i]); /* table[i] << 16 */
+ tmp = Log2_norm_table[i] - Log2_norm_table[i + 1]; /* table[i] - table[i+1] */
+ L_y = msu_16by16_from_int32(L_y, tmp, a); /* L_y -= tmp*a*2 */
+
+ *fraction = extract_h(L_y);
+
+ return;
+}
+
+
+
+/*----------------------------------------------------------------------------
+ *
+ * FUNCTION: amrwb_log_2()
+ *
+ * PURPOSE: Computes log2(L_x), where L_x is positive.
+ * If L_x is negative or zero, the result is 0.
+ *
+ * DESCRIPTION:
+ * normalizes L_x and then calls Lg2_normalized().
+ *
+ ----------------------------------------------------------------------------*/
+void amrwb_log_2(
+ int32 L_x, /* (i) : input value */
+ int16 *exponent, /* (o) : Integer part of Log2. (range: 0<=val<=30) */
+ int16 *fraction /* (o) : Fractional part of Log2. (range: 0<=val<1) */
+)
+{
+ int16 exp;
+
+ exp = normalize_amr_wb(L_x);
+ Lg2_normalized(shl_int32(L_x, exp), exp, exponent, fraction);
+}
+
+
+/*****************************************************************************
+ *
+ * These operations are not standard double precision operations. *
+ * They are used where single precision is not enough but the full 32 bits *
+ * precision is not necessary. For example, the function Div_32() has a *
+ * 24 bits precision which is enough for our purposes. *
+ * *
+ * The double precision numbers use a special representation: *
+ * *
+ * L_32 = hi<<16 + lo<<1 *
+ * *
+ * L_32 is a 32 bit integer. *
+ * hi and lo are 16 bit signed integers. *
+ * As the low part also contains the sign, this allows fast multiplication. *
+ * *
+ * 0x8000 0000 <= L_32 <= 0x7fff fffe. *
+ * *
+ * We will use DPF (Double Precision Format )in this file to specify *
+ * this special format. *
+ *****************************************************************************
+*/
+
+
+/*----------------------------------------------------------------------------
+ *
+ * Function int32_to_dpf()
+ *
+ * Extract from a 32 bit integer two 16 bit DPF.
+ *
+ * Arguments:
+ *
+ * L_32 : 32 bit integer.
+ * 0x8000 0000 <= L_32 <= 0x7fff ffff.
+ * hi : b16 to b31 of L_32
+ * lo : (L_32 - hi<<16)>>1
+ *
+ ----------------------------------------------------------------------------*/
+
+void int32_to_dpf(int32 L_32, int16 *hi, int16 *lo)
+{
+ *hi = (int16)(L_32 >> 16);
+ *lo = (int16)((L_32 - (*hi << 16)) >> 1);
+ return;
+}
+
+
+/*----------------------------------------------------------------------------
+ * Function mpy_dpf_32()
+ *
+ * Multiply two 32 bit integers (DPF). The result is divided by 2**31
+ *
+ * L_32 = (hi1*hi2)<<1 + ( (hi1*lo2)>>15 + (lo1*hi2)>>15 )<<1
+ *
+ * This operation can also be viewed as the multiplication of two Q31
+ * number and the result is also in Q31.
+ *
+ * Arguments:
+ *
+ * hi1 hi part of first number
+ * lo1 lo part of first number
+ * hi2 hi part of second number
+ * lo2 lo part of second number
+ *
+ ----------------------------------------------------------------------------*/
+
+int32 mpy_dpf_32(int16 hi1, int16 lo1, int16 hi2, int16 lo2)
+{
+ int32 L_32;
+
+ L_32 = mul_16by16_to_int32(hi1, hi2);
+ L_32 = mac_16by16_to_int32(L_32, mult_int16(hi1, lo2), 1);
+ L_32 = mac_16by16_to_int32(L_32, mult_int16(lo1, hi2), 1);
+
+ return (L_32);
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./src/pvamrwb_math_op.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef PVAMRWB_MATH_OP_H
+#define PVAMRWB_MATH_OP_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; DEFINES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+ int32 one_ov_sqrt( /* (o) Q31 : output value (range: 0<=val<1) */
+ int32 L_x /* (i) Q0 : input value (range: 0<=val<=7fffffff) */
+ );
+ void one_ov_sqrt_norm(
+ int32 * frac, /* (i/o) Q31: normalized value (1.0 < frac <= 0.5) */
+ int16 * exp /* (i/o) : exponent (value = frac x 2^exponent) */
+ );
+ int32 power_of_2( /* (o) Q0 : result (range: 0<=val<=0x7fffffff) */
+ int16 exponant, /* (i) Q0 : Integer part. (range: 0<=val<=30) */
+ int16 fraction /* (i) Q15 : Fractionnal part. (range: 0.0<=val<1.0) */
+ );
+ int32 Dot_product12( /* (o) Q31: normalized result (1 < val <= -1) */
+ int16 x[], /* (i) 12bits: x vector */
+ int16 y[], /* (i) 12bits: y vector */
+ int16 lg, /* (i) : vector length */
+ int16 * exp /* (o) : exponent of result (0..+30) */
+ );
+
+
+ void amrwb_log_2(
+ int32 L_x, /* (i) : input value */
+ int16 *exponent, /* (o) : Integer part of Log2. (range: 0<=val<=30) */
+ int16 *fraction /* (o) : Fractional part of Log2. (range: 0<=val<1)*/
+ );
+
+ void Lg2_normalized(
+ int32 L_x, /* (i) : input value (normalized) */
+ int16 exp, /* (i) : norm_l (L_x) */
+ int16 *exponent, /* (o) : Integer part of Log2. (range: 0<=val<=30) */
+ int16 *fraction /* (o) : Fractional part of Log2. (range: 0<=val<1) */
+ );
+
+
+ int16 mult_int16_r(int16 var1, int16 var2); /* Mult with round, 2 */
+ int16 shr_rnd(int16 var1, int16 var2); /* Shift right with round, 2 */
+
+ int16 div_16by16(int16 var1, int16 var2); /* Short division, 18 */
+
+
+ void int32_to_dpf(int32 L_32, int16 *hi, int16 *lo);
+ int32 mpy_dpf_32(int16 hi1, int16 lo1, int16 hi2, int16 lo2);
+
+
+#define norm_s( x) (normalize_amr_wb( x) - 16)
+
+
+#define extract_h( x) (int16)(x>>16)
+#define L_deposit_h( x) (int32)(x<<16)
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* PVAMRWB_MATH_OP_H */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pvamrwbdecoder.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 mode, input : used mode
+ int16 prms[], input : parameter vector
+ int16 synth16k[], output: synthesis speech
+ int16 * frame_length, output: lenght of the frame
+ void *spd_state, i/o : State structure
+ int16 frame_type, input : received frame type
+ int16 ScratchMem[]
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Performs the main decoder routine AMR WB ACELP coding algorithm with 20 ms
+ speech frames for wideband speech signals.
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_mem_funcs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+#include "e_pv_amrwbdec.h"
+#include "get_amr_wb_bits.h"
+#include "pvamrwb_math_op.h"
+#include "pvamrwbdecoder_api.h"
+#include "pvamrwbdecoder.h"
+#include "synthesis_amr_wb.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/* LPC interpolation coef {0.45, 0.8, 0.96, 1.0}; in Q15 */
+static const int16 interpol_frac[NB_SUBFR] = {14746, 26214, 31457, 32767};
+
+
+/* isp tables for initialization */
+
+static const int16 isp_init[M] =
+{
+ 32138, 30274, 27246, 23170, 18205, 12540, 6393, 0,
+ -6393, -12540, -18205, -23170, -27246, -30274, -32138, 1475
+};
+
+static const int16 isf_init[M] =
+{
+ 1024, 2048, 3072, 4096, 5120, 6144, 7168, 8192,
+ 9216, 10240, 11264, 12288, 13312, 14336, 15360, 3840
+};
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+ FUNCTION DESCRIPTION pvDecoder_AmrWb_Init
+
+ Initialization of variables for the decoder section.
+
+----------------------------------------------------------------------------*/
+
+
+
+
+void pvDecoder_AmrWb_Init(void **spd_state, void *pt_st, int16 **ScratchMem)
+{
+ /* Decoder states */
+ Decoder_State *st = &(((PV_AmrWbDec *)pt_st)->state);
+
+ *ScratchMem = ((PV_AmrWbDec *)pt_st)->ScratchMem;
+ /*
+ * Init dtx decoding
+ */
+ dtx_dec_amr_wb_reset(&(st->dtx_decSt), isf_init);
+
+ pvDecoder_AmrWb_Reset((void *) st, 1);
+
+ *spd_state = (void *) st;
+
+ return;
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void pvDecoder_AmrWb_Reset(void *st, int16 reset_all)
+{
+ int16 i;
+
+ Decoder_State *dec_state;
+
+ dec_state = (Decoder_State *) st;
+
+ pv_memset((void *)dec_state->old_exc,
+ 0,
+ (PIT_MAX + L_INTERPOL)*sizeof(*dec_state->old_exc));
+
+ pv_memset((void *)dec_state->past_isfq,
+ 0,
+ M*sizeof(*dec_state->past_isfq));
+
+
+ dec_state->old_T0_frac = 0; /* old pitch value = 64.0 */
+ dec_state->old_T0 = 64;
+ dec_state->first_frame = 1;
+ dec_state->L_gc_thres = 0;
+ dec_state->tilt_code = 0;
+
+ pv_memset((void *)dec_state->disp_mem,
+ 0,
+ 8*sizeof(*dec_state->disp_mem));
+
+
+ /* scaling memories for excitation */
+ dec_state->Q_old = Q_MAX;
+ dec_state->Qsubfr[3] = Q_MAX;
+ dec_state->Qsubfr[2] = Q_MAX;
+ dec_state->Qsubfr[1] = Q_MAX;
+ dec_state->Qsubfr[0] = Q_MAX;
+
+ if (reset_all != 0)
+ {
+ /* routines initialization */
+
+ dec_gain2_amr_wb_init(dec_state->dec_gain);
+ oversamp_12k8_to_16k_init(dec_state->mem_oversamp);
+ band_pass_6k_7k_init(dec_state->mem_hf);
+ low_pass_filt_7k_init(dec_state->mem_hf3);
+ highpass_50Hz_at_12k8_init(dec_state->mem_sig_out);
+ highpass_400Hz_at_12k8_init(dec_state->mem_hp400);
+ Init_Lagconc(dec_state->lag_hist);
+
+ /* isp initialization */
+
+ pv_memcpy((void *)dec_state->ispold, (void *)isp_init, M*sizeof(*isp_init));
+
+ pv_memcpy((void *)dec_state->isfold, (void *)isf_init, M*sizeof(*isf_init));
+ for (i = 0; i < L_MEANBUF; i++)
+ {
+ pv_memcpy((void *)&dec_state->isf_buf[i * M],
+ (void *)isf_init,
+ M*sizeof(*isf_init));
+ }
+ /* variable initialization */
+
+ dec_state->mem_deemph = 0;
+
+ dec_state->seed = 21845; /* init random with 21845 */
+ dec_state->seed2 = 21845;
+ dec_state->seed3 = 21845;
+
+ dec_state->state = 0;
+ dec_state->prev_bfi = 0;
+
+ /* Static vectors to zero */
+
+ pv_memset((void *)dec_state->mem_syn_hf,
+ 0,
+ M16k*sizeof(*dec_state->mem_syn_hf));
+
+ pv_memset((void *)dec_state->mem_syn_hi,
+ 0,
+ M*sizeof(*dec_state->mem_syn_hi));
+
+ pv_memset((void *)dec_state->mem_syn_lo,
+ 0,
+ M*sizeof(*dec_state->mem_syn_lo));
+
+
+ dtx_dec_amr_wb_reset(&(dec_state->dtx_decSt), isf_init);
+ dec_state->vad_hist = 0;
+
+ }
+ return;
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+int32 pvDecoder_AmrWbMemRequirements()
+{
+ return(sizeof(PV_AmrWbDec));
+}
+
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/* Main decoder routine. */
+
+int32 pvDecoder_AmrWb(
+ int16 mode, /* input : used mode */
+ int16 prms[], /* input : parameter vector */
+ int16 synth16k[], /* output: synthesis speech */
+ int16 * frame_length, /* output: lenght of the frame */
+ void *spd_state, /* i/o : State structure */
+ int16 frame_type, /* input : received frame type */
+ int16 ScratchMem[]
+)
+{
+
+ /* Decoder states */
+ Decoder_State *st;
+
+ int16 *ScratchMem2 = &ScratchMem[ L_SUBFR + L_SUBFR16k + ((L_SUBFR + M + M16k +1)<<1)];
+
+
+ /* Excitation vector */
+
+
+ int16 *old_exc = ScratchMem2;
+
+ int16 *Aq = &old_exc[(L_FRAME + 1) + PIT_MAX + L_INTERPOL];/* A(z) quantized for the 4 subframes */
+
+ int16 *ispnew = &Aq[NB_SUBFR * (M + 1)];/* immittance spectral pairs at 4nd sfr */
+ int16 *isf = &ispnew[M]; /* ISF (frequency domain) at 4nd sfr */
+ int16 *isf_tmp = &isf[M];
+ int16 *code = &isf_tmp[M]; /* algebraic codevector */
+ int16 *excp = &code[L_SUBFR];
+ int16 *exc2 = &excp[L_SUBFR]; /* excitation vector */
+ int16 *HfIsf = &exc2[L_FRAME];
+
+
+ int16 *exc;
+
+ /* LPC coefficients */
+
+ int16 *p_Aq; /* ptr to A(z) for the 4 subframes */
+
+
+
+ int16 fac, stab_fac, voice_fac, Q_new = 0;
+ int32 L_tmp, L_gain_code;
+
+ /* Scalars */
+
+ int16 i, j, i_subfr, index, ind[8], tmp;
+ int32 max;
+ int16 T0, T0_frac, pit_flag, T0_max, select, T0_min = 0;
+ int16 gain_pit, gain_code;
+ int16 newDTXState, bfi, unusable_frame, nb_bits;
+ int16 vad_flag;
+ int16 pit_sharp;
+
+ int16 corr_gain = 0;
+
+ st = (Decoder_State *) spd_state;
+
+ /* mode verification */
+
+ nb_bits = AMR_WB_COMPRESSED[mode];
+
+ *frame_length = AMR_WB_PCM_FRAME;
+
+ /* find the new DTX state SPEECH OR DTX */
+ newDTXState = rx_amr_wb_dtx_handler(&(st->dtx_decSt), frame_type);
+
+
+ if (newDTXState != SPEECH)
+ {
+ dtx_dec_amr_wb(&(st->dtx_decSt), exc2, newDTXState, isf, &prms);
+ }
+ /* SPEECH action state machine */
+
+ if ((frame_type == RX_SPEECH_BAD) ||
+ (frame_type == RX_SPEECH_PROBABLY_DEGRADED))
+ {
+ /* bfi for all index, bits are not usable */
+ bfi = 1;
+ unusable_frame = 0;
+ }
+ else if ((frame_type == RX_NO_DATA) ||
+ (frame_type == RX_SPEECH_LOST))
+ {
+ /* bfi only for lsf, gains and pitch period */
+ bfi = 1;
+ unusable_frame = 1;
+ }
+ else
+ {
+ bfi = 0;
+ unusable_frame = 0;
+ }
+
+ if (bfi != 0)
+ {
+ st->state += 1;
+
+ if (st->state > 6)
+ {
+ st->state = 6;
+ }
+ }
+ else
+ {
+ st->state >>= 1;
+ }
+
+ /* If this frame is the first speech frame after CNI period,
+ * set the BFH state machine to an appropriate state depending
+ * on whether there was DTX muting before start of speech or not
+ * If there was DTX muting, the first speech frame is muted.
+ * If there was no DTX muting, the first speech frame is not
+ * muted. The BFH state machine starts from state 5, however, to
+ * keep the audible noise resulting from a SID frame which is
+ * erroneously interpreted as a good speech frame as small as
+ * possible (the decoder output in this case is quickly muted)
+ */
+
+ if (st->dtx_decSt.dtxGlobalState == DTX)
+ {
+ st->state = 5;
+ st->prev_bfi = 0;
+ }
+ else if (st->dtx_decSt.dtxGlobalState == DTX_MUTE)
+ {
+ st->state = 5;
+ st->prev_bfi = 1;
+ }
+
+ if (newDTXState == SPEECH)
+ {
+ vad_flag = Serial_parm_1bit(&prms);
+
+ if (bfi == 0)
+ {
+ if (vad_flag == 0)
+ {
+ st->vad_hist = add_int16(st->vad_hist, 1);
+ }
+ else
+ {
+ st->vad_hist = 0;
+ }
+ }
+ }
+ /*
+ * DTX-CNG
+ */
+
+ if (newDTXState != SPEECH) /* CNG mode */
+ {
+ /* increase slightly energy of noise below 200 Hz */
+
+ /* Convert ISFs to the cosine domain */
+ Isf_isp(isf, ispnew, M);
+
+ Isp_Az(ispnew, Aq, M, 1);
+
+ pv_memcpy((void *)isf_tmp, (void *)st->isfold, M*sizeof(*isf_tmp));
+
+
+ for (i_subfr = 0; i_subfr < L_FRAME; i_subfr += L_SUBFR)
+ {
+ j = i_subfr >> 6;
+
+ for (i = 0; i < M; i++)
+ {
+ L_tmp = mul_16by16_to_int32(isf_tmp[i], sub_int16(32767, interpol_frac[j]));
+ L_tmp = mac_16by16_to_int32(L_tmp, isf[i], interpol_frac[j]);
+ HfIsf[i] = amr_wb_round(L_tmp);
+ }
+
+ synthesis_amr_wb(Aq,
+ &exc2[i_subfr],
+ 0,
+ &synth16k[i_subfr *5/4],
+ (short) 1,
+ HfIsf,
+ nb_bits,
+ newDTXState,
+ st,
+ bfi,
+ ScratchMem);
+ }
+
+ /* reset speech coder memories */
+ pvDecoder_AmrWb_Reset(st, 0);
+
+ pv_memcpy((void *)st->isfold, (void *)isf, M*sizeof(*isf));
+
+ st->prev_bfi = bfi;
+ st->dtx_decSt.dtxGlobalState = newDTXState;
+
+ return 0;
+ }
+ /*
+ * ACELP
+ */
+
+ /* copy coder memory state into working space (internal memory for DSP) */
+
+ pv_memcpy((void *)old_exc, (void *)st->old_exc, (PIT_MAX + L_INTERPOL)*sizeof(*old_exc));
+
+ exc = old_exc + PIT_MAX + L_INTERPOL;
+
+ /* Decode the ISFs */
+
+ if (nb_bits > NBBITS_7k) /* all rates but 6.6 Kbps */
+ {
+ ind[0] = Serial_parm(8, &prms); /* index of 1st ISP subvector */
+ ind[1] = Serial_parm(8, &prms); /* index of 2nd ISP subvector */
+ ind[2] = Serial_parm(6, &prms); /* index of 3rd ISP subvector */
+ ind[3] = Serial_parm(7, &prms); /* index of 4th ISP subvector */
+ ind[4] = Serial_parm(7, &prms); /* index of 5th ISP subvector */
+ ind[5] = Serial_parm(5, &prms); /* index of 6th ISP subvector */
+ ind[6] = Serial_parm(5, &prms); /* index of 7th ISP subvector */
+
+ Dpisf_2s_46b(ind, isf, st->past_isfq, st->isfold, st->isf_buf, bfi, 1);
+ }
+ else
+ {
+ ind[0] = Serial_parm(8, &prms);
+ ind[1] = Serial_parm(8, &prms);
+ ind[2] = Serial_parm(14, &prms);
+ ind[3] = ind[2] & 0x007F;
+ ind[2] >>= 7;
+ ind[4] = Serial_parm(6, &prms);
+
+ Dpisf_2s_36b(ind, isf, st->past_isfq, st->isfold, st->isf_buf, bfi, 1);
+ }
+
+ /* Convert ISFs to the cosine domain */
+
+ Isf_isp(isf, ispnew, M);
+
+ if (st->first_frame != 0)
+ {
+ st->first_frame = 0;
+ pv_memcpy((void *)st->ispold, (void *)ispnew, M*sizeof(*ispnew));
+
+ }
+ /* Find the interpolated ISPs and convert to a[] for all subframes */
+ interpolate_isp(st->ispold, ispnew, interpol_frac, Aq);
+
+ /* update ispold[] for the next frame */
+ pv_memcpy((void *)st->ispold, (void *)ispnew, M*sizeof(*ispnew));
+
+ /* Check stability on isf : distance between old isf and current isf */
+
+ L_tmp = 0;
+ for (i = 0; i < M - 1; i++)
+ {
+ tmp = sub_int16(isf[i], st->isfold[i]);
+ L_tmp = mac_16by16_to_int32(L_tmp, tmp, tmp);
+ }
+ tmp = extract_h(shl_int32(L_tmp, 8));
+ tmp = mult_int16(tmp, 26214); /* tmp = L_tmp*0.8/256 */
+
+ tmp = 20480 - tmp; /* 1.25 - tmp */
+ stab_fac = shl_int16(tmp, 1); /* Q14 -> Q15 with saturation */
+
+ if (stab_fac < 0)
+ {
+ stab_fac = 0;
+ }
+ pv_memcpy((void *)isf_tmp, (void *)st->isfold, M*sizeof(*isf_tmp));
+
+ pv_memcpy((void *)st->isfold, (void *)isf, M*sizeof(*isf));
+
+ /*
+ * Loop for every subframe in the analysis frame
+ *
+ * The subframe size is L_SUBFR and the loop is repeated L_FRAME/L_SUBFR
+ * times
+ * - decode the pitch delay and filter mode
+ * - decode algebraic code
+ * - decode pitch and codebook gains
+ * - find voicing factor and tilt of code for next subframe.
+ * - find the excitation and compute synthesis speech
+ */
+
+ p_Aq = Aq; /* pointer to interpolated LPC parameters */
+
+
+ /*
+ * Sub process next 3 subframes
+ */
+
+
+ for (i_subfr = 0; i_subfr < L_FRAME; i_subfr += L_SUBFR)
+ {
+ pit_flag = i_subfr;
+
+
+ if ((i_subfr == 2*L_SUBFR) && (nb_bits > NBBITS_7k))
+ {
+ pit_flag = 0; /* set to 0 for 3rd subframe, <=> is not 6.6 kbps */
+ }
+ /*-------------------------------------------------*
+ * - Decode pitch lag *
+ * Lag indeces received also in case of BFI, *
+ * so that the parameter pointer stays in sync. *
+ *-------------------------------------------------*/
+
+ if (pit_flag == 0)
+ {
+
+ if (nb_bits <= NBBITS_9k)
+ {
+ index = Serial_parm(8, &prms);
+
+ if (index < (PIT_FR1_8b - PIT_MIN) * 2)
+ {
+ T0 = PIT_MIN + (index >> 1);
+ T0_frac = sub_int16(index, shl_int16(sub_int16(T0, PIT_MIN), 1));
+ T0_frac = shl_int16(T0_frac, 1);
+ }
+ else
+ {
+ T0 = add_int16(index, PIT_FR1_8b - ((PIT_FR1_8b - PIT_MIN) * 2));
+ T0_frac = 0;
+ }
+ }
+ else
+ {
+ index = Serial_parm(9, &prms);
+
+ if (index < (PIT_FR2 - PIT_MIN) * 4)
+ {
+ T0 = PIT_MIN + (index >> 2);
+ T0_frac = sub_int16(index, shl_int16(sub_int16(T0, PIT_MIN), 2));
+ }
+ else if (index < (((PIT_FR2 - PIT_MIN) << 2) + ((PIT_FR1_9b - PIT_FR2) << 1)))
+ {
+ index -= (PIT_FR2 - PIT_MIN) << 2;
+ T0 = PIT_FR2 + (index >> 1);
+ T0_frac = sub_int16(index, shl_int16(sub_int16(T0, PIT_FR2), 1));
+ T0_frac = shl_int16(T0_frac, 1);
+ }
+ else
+ {
+ T0 = add_int16(index, (PIT_FR1_9b - ((PIT_FR2 - PIT_MIN) * 4) - ((PIT_FR1_9b - PIT_FR2) * 2)));
+ T0_frac = 0;
+ }
+ }
+
+ /* find T0_min and T0_max for subframe 2 and 4 */
+
+ T0_min = T0 - 8;
+
+ if (T0_min < PIT_MIN)
+ {
+ T0_min = PIT_MIN;
+ }
+ T0_max = T0_min + 15;
+
+ if (T0_max > PIT_MAX)
+ {
+ T0_max = PIT_MAX;
+ T0_min = PIT_MAX - 15;
+ }
+ }
+ else
+ { /* if subframe 2 or 4 */
+
+ if (nb_bits <= NBBITS_9k)
+ {
+ index = Serial_parm(5, &prms);
+
+ T0 = T0_min + (index >> 1);
+ T0_frac = sub_int16(index, shl_int16(T0 - T0_min, 1));
+ T0_frac = shl_int16(T0_frac, 1);
+ }
+ else
+ {
+ index = Serial_parm(6, &prms);
+
+ T0 = T0_min + (index >> 2);
+ T0_frac = sub_int16(index, shl_int16(T0 - T0_min, 2));
+ }
+ }
+
+ /* check BFI after pitch lag decoding */
+
+ if (bfi != 0) /* if frame erasure */
+ {
+ lagconceal(&(st->dec_gain[17]), st->lag_hist, &T0, &(st->old_T0), &(st->seed3), unusable_frame);
+ T0_frac = 0;
+ }
+ /*
+ * Find the pitch gain, the interpolation filter
+ * and the adaptive codebook vector.
+ */
+
+ Pred_lt4(&exc[i_subfr], T0, T0_frac, L_SUBFR + 1);
+
+
+ if (unusable_frame)
+ {
+ select = 1;
+ }
+ else
+ {
+
+ if (nb_bits <= NBBITS_9k)
+ {
+ select = 0;
+ }
+ else
+ {
+ select = Serial_parm_1bit(&prms);
+ }
+ }
+
+
+ if (select == 0)
+ {
+ /* find pitch excitation with lp filter */
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ L_tmp = ((int32) exc[i-1+i_subfr] + exc[i+1+i_subfr]);
+ L_tmp *= 5898;
+ L_tmp += ((int32) exc[i+i_subfr] * 20972);
+
+ code[i] = amr_wb_round(L_tmp << 1);
+ }
+ pv_memcpy((void *)&exc[i_subfr], (void *)code, L_SUBFR*sizeof(*code));
+
+ }
+ /*
+ * Decode innovative codebook.
+ * Add the fixed-gain pitch contribution to code[].
+ */
+
+ if (unusable_frame != 0)
+ {
+ /* the innovative code doesn't need to be scaled (see Q_gain2) */
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ code[i] = noise_gen_amrwb(&(st->seed)) >> 3;
+ }
+ }
+ else if (nb_bits <= NBBITS_7k)
+ {
+ ind[0] = Serial_parm(12, &prms);
+ dec_acelp_2p_in_64(ind[0], code);
+ }
+ else if (nb_bits <= NBBITS_9k)
+ {
+ for (i = 0; i < 4; i++)
+ {
+ ind[i] = Serial_parm(5, &prms);
+ }
+ dec_acelp_4p_in_64(ind, 20, code);
+ }
+ else if (nb_bits <= NBBITS_12k)
+ {
+ for (i = 0; i < 4; i++)
+ {
+ ind[i] = Serial_parm(9, &prms);
+ }
+ dec_acelp_4p_in_64(ind, 36, code);
+ }
+ else if (nb_bits <= NBBITS_14k)
+ {
+ ind[0] = Serial_parm(13, &prms);
+ ind[1] = Serial_parm(13, &prms);
+ ind[2] = Serial_parm(9, &prms);
+ ind[3] = Serial_parm(9, &prms);
+ dec_acelp_4p_in_64(ind, 44, code);
+ }
+ else if (nb_bits <= NBBITS_16k)
+ {
+ for (i = 0; i < 4; i++)
+ {
+ ind[i] = Serial_parm(13, &prms);
+ }
+ dec_acelp_4p_in_64(ind, 52, code);
+ }
+ else if (nb_bits <= NBBITS_18k)
+ {
+ for (i = 0; i < 4; i++)
+ {
+ ind[i] = Serial_parm(2, &prms);
+ }
+ for (i = 4; i < 8; i++)
+ {
+ ind[i] = Serial_parm(14, &prms);
+ }
+ dec_acelp_4p_in_64(ind, 64, code);
+ }
+ else if (nb_bits <= NBBITS_20k)
+ {
+ ind[0] = Serial_parm(10, &prms);
+ ind[1] = Serial_parm(10, &prms);
+ ind[2] = Serial_parm(2, &prms);
+ ind[3] = Serial_parm(2, &prms);
+ ind[4] = Serial_parm(10, &prms);
+ ind[5] = Serial_parm(10, &prms);
+ ind[6] = Serial_parm(14, &prms);
+ ind[7] = Serial_parm(14, &prms);
+ dec_acelp_4p_in_64(ind, 72, code);
+ }
+ else
+ {
+ for (i = 0; i < 8; i++)
+ {
+ ind[i] = Serial_parm(11, &prms);
+ }
+
+ dec_acelp_4p_in_64(ind, 88, code);
+ }
+
+ preemph_amrwb_dec(code, st->tilt_code, L_SUBFR);
+
+ tmp = T0;
+
+ if (T0_frac > 2)
+ {
+ tmp++;
+ }
+ Pit_shrp(code, tmp, PIT_SHARP, L_SUBFR);
+
+ /*
+ * Decode codebooks gains.
+ */
+
+ if (nb_bits <= NBBITS_9k)
+ {
+ index = Serial_parm(6, &prms); /* codebook gain index */
+
+ dec_gain2_amr_wb(index,
+ 6,
+ code,
+ L_SUBFR,
+ &gain_pit,
+ &L_gain_code,
+ bfi,
+ st->prev_bfi,
+ st->state,
+ unusable_frame,
+ st->vad_hist,
+ st->dec_gain);
+ }
+ else
+ {
+ index = Serial_parm(7, &prms); /* codebook gain index */
+
+ dec_gain2_amr_wb(index,
+ 7,
+ code,
+ L_SUBFR,
+ &gain_pit,
+ &L_gain_code,
+ bfi,
+ st->prev_bfi,
+ st->state,
+ unusable_frame,
+ st->vad_hist,
+ st->dec_gain);
+ }
+
+ /* find best scaling to perform on excitation (Q_new) */
+
+ tmp = st->Qsubfr[0];
+ for (i = 1; i < 4; i++)
+ {
+ if (st->Qsubfr[i] < tmp)
+ {
+ tmp = st->Qsubfr[i];
+ }
+ }
+
+ /* limit scaling (Q_new) to Q_MAX: see pv_amr_wb_cnst.h and syn_filt_32() */
+
+ if (tmp > Q_MAX)
+ {
+ tmp = Q_MAX;
+ }
+ Q_new = 0;
+ L_tmp = L_gain_code; /* L_gain_code in Q16 */
+
+
+ while ((L_tmp < 0x08000000L) && (Q_new < tmp))
+ {
+ L_tmp <<= 1;
+ Q_new += 1;
+
+ }
+ gain_code = amr_wb_round(L_tmp); /* scaled gain_code with Qnew */
+
+ scale_signal(exc + i_subfr - (PIT_MAX + L_INTERPOL),
+ PIT_MAX + L_INTERPOL + L_SUBFR,
+ (int16)(Q_new - st->Q_old));
+
+ st->Q_old = Q_new;
+
+
+ /*
+ * Update parameters for the next subframe.
+ * - tilt of code: 0.0 (unvoiced) to 0.5 (voiced)
+ */
+
+
+ if (bfi == 0)
+ {
+ /* LTP-Lag history update */
+ for (i = 4; i > 0; i--)
+ {
+ st->lag_hist[i] = st->lag_hist[i - 1];
+ }
+ st->lag_hist[0] = T0;
+
+ st->old_T0 = T0;
+ st->old_T0_frac = 0; /* Remove fraction in case of BFI */
+ }
+ /* find voice factor in Q15 (1=voiced, -1=unvoiced) */
+
+ /*
+ * Scale down by 1/8
+ */
+ for (i = L_SUBFR - 1; i >= 0; i--)
+ {
+ exc2[i] = (exc[i_subfr + i] + (0x0004 * (exc[i_subfr + i] != MAX_16))) >> 3;
+ }
+
+
+ /* post processing of excitation elements */
+
+ if (nb_bits <= NBBITS_9k)
+ {
+ pit_sharp = shl_int16(gain_pit, 1);
+
+ if (pit_sharp > 16384)
+ {
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ tmp = mult_int16(exc2[i], pit_sharp);
+ L_tmp = mul_16by16_to_int32(tmp, gain_pit);
+ L_tmp >>= 1;
+ excp[i] = amr_wb_round(L_tmp);
+ }
+ }
+ }
+ else
+ {
+ pit_sharp = 0;
+ }
+
+ voice_fac = voice_factor(exc2, -3, gain_pit, code, gain_code, L_SUBFR);
+
+ /* tilt of code for next subframe: 0.5=voiced, 0=unvoiced */
+
+ st->tilt_code = (voice_fac >> 2) + 8192;
+
+ /*
+ * - Find the total excitation.
+ * - Find synthesis speech corresponding to exc[].
+ * - Find maximum value of excitation for next scaling
+ */
+
+ pv_memcpy((void *)exc2, (void *)&exc[i_subfr], L_SUBFR*sizeof(*exc2));
+ max = 1;
+
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ L_tmp = mul_16by16_to_int32(code[i], gain_code);
+ L_tmp = shl_int32(L_tmp, 5);
+ L_tmp = mac_16by16_to_int32(L_tmp, exc[i + i_subfr], gain_pit);
+ L_tmp = shl_int32(L_tmp, 1);
+ tmp = amr_wb_round(L_tmp);
+ exc[i + i_subfr] = tmp;
+ tmp = tmp - (tmp < 0);
+ max |= tmp ^(tmp >> 15); /* |= tmp ^sign(tmp) */
+ }
+
+
+ /* tmp = scaling possible according to max value of excitation */
+ tmp = add_int16(norm_s(max), Q_new) - 1;
+
+ st->Qsubfr[3] = st->Qsubfr[2];
+ st->Qsubfr[2] = st->Qsubfr[1];
+ st->Qsubfr[1] = st->Qsubfr[0];
+ st->Qsubfr[0] = tmp;
+
+ /*
+ * phase dispersion to enhance noise in low bit rate
+ */
+
+
+ if (nb_bits <= NBBITS_7k)
+ {
+ j = 0; /* high dispersion for rate <= 7.5 kbit/s */
+ }
+ else if (nb_bits <= NBBITS_9k)
+ {
+ j = 1; /* low dispersion for rate <= 9.6 kbit/s */
+ }
+ else
+ {
+ j = 2; /* no dispersion for rate > 9.6 kbit/s */
+ }
+
+ /* L_gain_code in Q16 */
+
+ phase_dispersion((int16)(L_gain_code >> 16),
+ gain_pit,
+ code,
+ j,
+ st->disp_mem,
+ ScratchMem);
+
+ /*
+ * noise enhancer
+ * - Enhance excitation on noise. (modify gain of code)
+ * If signal is noisy and LPC filter is stable, move gain
+ * of code 1.5 dB toward gain of code threshold.
+ * This decrease by 3 dB noise energy variation.
+ */
+
+ tmp = 16384 - (voice_fac >> 1); /* 1=unvoiced, 0=voiced */
+ fac = mult_int16(stab_fac, tmp);
+
+ L_tmp = L_gain_code;
+
+ if (L_tmp < st->L_gc_thres)
+ {
+ L_tmp += fxp_mul32_by_16b(L_gain_code, 6226) << 1;
+
+ if (L_tmp > st->L_gc_thres)
+ {
+ L_tmp = st->L_gc_thres;
+ }
+ }
+ else
+ {
+ L_tmp = fxp_mul32_by_16b(L_gain_code, 27536) << 1;
+
+ if (L_tmp < st->L_gc_thres)
+ {
+ L_tmp = st->L_gc_thres;
+ }
+ }
+ st->L_gc_thres = L_tmp;
+
+ L_gain_code = fxp_mul32_by_16b(L_gain_code, (32767 - fac)) << 1;
+
+
+ L_gain_code = add_int32(L_gain_code, fxp_mul32_by_16b(L_tmp, fac) << 1);
+
+ /*
+ * pitch enhancer
+ * - Enhance excitation on voice. (HP filtering of code)
+ * On voiced signal, filtering of code by a smooth fir HP
+ * filter to decrease energy of code in low frequency.
+ */
+
+ tmp = (voice_fac >> 3) + 4096;/* 0.25=voiced, 0=unvoiced */
+
+ /* build excitation */
+
+ gain_code = amr_wb_round(shl_int32(L_gain_code, Q_new));
+
+ L_tmp = (int32)(code[0] << 16);
+ L_tmp = msu_16by16_from_int32(L_tmp, code[1], tmp);
+ L_tmp = mul_16by16_to_int32(amr_wb_round(L_tmp), gain_code);
+ L_tmp = shl_int32(L_tmp, 5);
+ L_tmp = mac_16by16_to_int32(L_tmp, exc2[0], gain_pit);
+ L_tmp = shl_int32(L_tmp, 1); /* saturation can occur here */
+ exc2[0] = amr_wb_round(L_tmp);
+
+
+ for (i = 1; i < L_SUBFR - 1; i++)
+ {
+ L_tmp = (int32)(code[i] << 16);
+ L_tmp = msu_16by16_from_int32(L_tmp, (code[i + 1] + code[i - 1]), tmp);
+ L_tmp = mul_16by16_to_int32(amr_wb_round(L_tmp), gain_code);
+ L_tmp = shl_int32(L_tmp, 5);
+ L_tmp = mac_16by16_to_int32(L_tmp, exc2[i], gain_pit);
+ L_tmp = shl_int32(L_tmp, 1); /* saturation can occur here */
+ exc2[i] = amr_wb_round(L_tmp);
+ }
+
+ L_tmp = (int32)(code[L_SUBFR - 1] << 16);
+ L_tmp = msu_16by16_from_int32(L_tmp, code[L_SUBFR - 2], tmp);
+ L_tmp = mul_16by16_to_int32(amr_wb_round(L_tmp), gain_code);
+ L_tmp = shl_int32(L_tmp, 5);
+ L_tmp = mac_16by16_to_int32(L_tmp, exc2[L_SUBFR - 1], gain_pit);
+ L_tmp = shl_int32(L_tmp, 1); /* saturation can occur here */
+ exc2[L_SUBFR - 1] = amr_wb_round(L_tmp);
+
+
+
+ if (nb_bits <= NBBITS_9k)
+ {
+ if (pit_sharp > 16384)
+ {
+ for (i = 0; i < L_SUBFR; i++)
+ {
+ excp[i] = add_int16(excp[i], exc2[i]);
+ }
+ agc2_amr_wb(exc2, excp, L_SUBFR);
+ pv_memcpy((void *)exc2, (void *)excp, L_SUBFR*sizeof(*exc2));
+
+ }
+ }
+ if (nb_bits <= NBBITS_7k)
+ {
+ j = i_subfr >> 6;
+ for (i = 0; i < M; i++)
+ {
+ L_tmp = mul_16by16_to_int32(isf_tmp[i], sub_int16(32767, interpol_frac[j]));
+ L_tmp = mac_16by16_to_int32(L_tmp, isf[i], interpol_frac[j]);
+ HfIsf[i] = amr_wb_round(L_tmp);
+ }
+ }
+ else
+ {
+ pv_memset((void *)st->mem_syn_hf,
+ 0,
+ (M16k - M)*sizeof(*st->mem_syn_hf));
+ }
+
+ if (nb_bits >= NBBITS_24k)
+ {
+ corr_gain = Serial_parm(4, &prms);
+ }
+ else
+ {
+ corr_gain = 0;
+ }
+
+ synthesis_amr_wb(p_Aq,
+ exc2,
+ Q_new,
+ &synth16k[i_subfr + (i_subfr>>2)],
+ corr_gain,
+ HfIsf,
+ nb_bits,
+ newDTXState,
+ st,
+ bfi,
+ ScratchMem);
+
+ p_Aq += (M + 1); /* interpolated LPC parameters for next subframe */
+ }
+
+ /*
+ * Update signal for next frame.
+ * -> save past of exc[]
+ * -> save pitch parameters
+ */
+
+ pv_memcpy((void *)st->old_exc,
+ (void *)&old_exc[L_FRAME],
+ (PIT_MAX + L_INTERPOL)*sizeof(*old_exc));
+
+ scale_signal(exc, L_FRAME, (int16)(-Q_new));
+
+ dtx_dec_amr_wb_activity_update(&(st->dtx_decSt), isf, exc);
+
+ st->dtx_decSt.dtxGlobalState = newDTXState;
+
+ st->prev_bfi = bfi;
+
+ return 0;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Name: pvamrwbdecoder.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Main header file for the Packet Video AMR Wide Band decoder library. The
+ constants, structures, and functions defined within this file, along with
+ a basic data types header file, is all that is needed to use and communicate
+ with the library. The internal data structures within the library are
+ purposely hidden.
+
+ ---* Need description of the input buffering. *-------
+
+ ---* Need an example of calling the library here *----
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (Normally header files do not have a reference section)
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef _PVAMRWBDECODER_H
+#define _PVAMRWBDECODER_H
+
+#include "oscl_base.h" /* Basic data types used within the lib */
+#include "pvamrwbdecoder_api.h"
+#include "pvgsmamrdecoderinterface.h"
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*----------------------------------------------------------------------------
+ ; MACROS
+ ; Define module specific macros here
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; DEFINES
+ ; Include all pre-processor statements here.
+ ----------------------------------------------------------------------------*/
+
+
+
+ /*----------------------------------------------------------------------------
+ ; EXTERNAL VARIABLES REFERENCES
+ ; Declare variables used in this module but defined elsewhere
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; SIMPLE TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; ENUMERATED TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; STRUCTURES TYPEDEF'S
+ ----------------------------------------------------------------------------*/
+
+ /*----------------------------------------------------------------------------
+ ; GLOBAL FUNCTION DEFINITIONS
+ ; Function Prototype declaration
+ ----------------------------------------------------------------------------*/
+
+ void pvDecoder_AmrWb_Init(void **spd_state, void *st, int16 ** ScratchMem);
+
+ int32 pvDecoder_AmrWb(
+ int16 mode, /* input : used mode */
+ int16 prms[], /* input : parameter vector */
+ int16 synth16k[], /* output: synthesis speech */
+ int16 * frame_length, /* output: lenght of the frame */
+ void *spd_state, /* i/o : State structure */
+ int16 frame_type, /* input : received frame type */
+ int16 ScratchMem[]
+ );
+
+ void pvDecoder_AmrWb_Reset(void *st, int16 reset_all);
+
+ int16 pvDecoder_AmrWb_homing_frame_test(int16 input_frame[], int16 mode);
+
+ int16 pvDecoder_AmrWb_homing_frame_test_first(int16 input_frame[], int16 mode);
+
+ int32 pvDecoder_AmrWbMemRequirements();
+
+ void mime_unsorting(uint8 packet[],
+ int16 compressed_data[],
+ int16 *frame_type,
+ int16 *mode,
+ uint8 q,
+ RX_State *st);
+
+
+ /*----------------------------------------------------------------------------
+ ; END
+ ----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* PVMP4AUDIODECODER_API_H */
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./cpp/include/pvamrwbdecoder_acelp.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef PVAMRWBDECODER_ACELP_H
+#define PVAMRWBDECODER_ACELP_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_mem_funcs.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /*-----------------------------------------------------------------*
+ * LPC prototypes *
+ *-----------------------------------------------------------------*/
+
+ void isf_extrapolation(int16 HfIsf[]);
+
+ void Init_Lagconc(int16 lag_hist[]);
+ void lagconceal(
+ int16 gain_hist[], /* (i) : Gain history */
+ int16 lag_hist[], /* (i) : Subframe size */
+ int16 * T0,
+ int16 * old_T0,
+ int16 * seed,
+ int16 unusable_frame
+ );
+
+ void agc2_amr_wb(
+ int16 * sig_in, /* input : postfilter input signal */
+ int16 * sig_out, /* in/out: postfilter output signal */
+ int16 l_trm /* input : subframe size */
+ );
+
+ void low_pass_filt_7k_init(int16 mem[]);
+ void low_pass_filt_7k(
+ int16 signal[], /* input: signal */
+ int16 lg, /* input: length of input */
+ int16 mem[], /* in/out: memory (size=30) */
+ int16 x[]
+ );
+
+ int16 median5(int16 x[]);
+
+ void Isp_Az(
+ int16 isp[], /* (i) Q15 : Immittance spectral pairs */
+ int16 a[], /* (o) Q12 : predictor coefficients (order = M) */
+ int16 m,
+ int16 adaptive_scaling /* (i) 0 : adaptive scaling disabled */
+ /* 1 : adaptive scaling enabled */
+ );
+ void Isf_isp(
+ int16 isf[], /* (i) Q15 : isf[m] normalized (range: 0.0<=val<=0.5) */
+ int16 isp[], /* (o) Q15 : isp[m] (range: -1<=val<1) */
+ int16 m /* (i) : LPC order */
+ );
+ void interpolate_isp(
+ int16 isp_old[], /* input : isps from past frame */
+ int16 isp_new[], /* input : isps from present frame */
+ const int16 frac[], /* input : fraction for 3 first subfr (Q15) */
+ int16 Az[] /* output: LP coefficients in 4 subframes */
+ );
+ void weight_amrwb_lpc(
+ int16 a[], /* (i) Q12 : a[m+1] LPC coefficients */
+ int16 ap[], /* (o) Q12 : Spectral expanded LPC coefficients */
+ int16 gamma, /* (i) Q15 : Spectral expansion factor. */
+ int16 m /* (i) : LPC order. */
+ );
+
+
+ /*-----------------------------------------------------------------*
+ * isf quantizers *
+ *-----------------------------------------------------------------*/
+
+ void Disf_ns(
+ int16 * indice, /* input: quantization indices */
+ int16 * isf_q /* input : ISF in the frequency domain (0..0.5) */
+ );
+
+ void Dpisf_2s_46b(
+ int16 * indice, /* input: quantization indices */
+ int16 * isf_q, /* output: quantized ISF in frequency domain (0..0.5) */
+ int16 * past_isfq, /* i/0 : past ISF quantizer */
+ int16 * isfold, /* input : past quantized ISF */
+ int16 * isf_buf, /* input : isf buffer */
+ int16 bfi, /* input : Bad frame indicator */
+ int16 enc_dec
+ );
+ void Dpisf_2s_36b(
+ int16 * indice, /* input: quantization indices */
+ int16 * isf_q, /* output: quantized ISF in frequency domain (0..0.5) */
+ int16 * past_isfq, /* i/0 : past ISF quantizer */
+ int16 * isfold, /* input : past quantized ISF */
+ int16 * isf_buf, /* input : isf buffer */
+ int16 bfi, /* input : Bad frame indicator */
+ int16 enc_dec
+ );
+
+
+ void Reorder_isf(
+ int16 * isf, /* (i/o) Q15: ISF in the frequency domain (0..0.5) */
+ int16 min_dist, /* (i) Q15 : minimum distance to keep */
+ int16 n /* (i) : number of ISF */
+ );
+
+ /*-----------------------------------------------------------------*
+ * filter prototypes *
+ *-----------------------------------------------------------------*/
+
+ void oversamp_12k8_to_16k_init(
+ int16 mem[] /* output: memory (2*NB_COEF_UP) set to zeros */
+ );
+ void oversamp_12k8_to_16k(
+ int16 sig12k8[], /* input: signal to oversampling */
+ int16 lg, /* input: length of input */
+ int16 sig16k[], /* output: oversampled signal */
+ int16 mem[], /* in/out: memory (2*NB_COEF_UP) */
+ int16 signal[]
+ );
+
+ void highpass_50Hz_at_12k8_init(int16 mem[]);
+ void highpass_50Hz_at_12k8(
+ int16 signal[], /* input/output signal */
+ int16 lg, /* lenght of signal */
+ int16 mem[] /* filter memory [6] */
+ );
+ void highpass_400Hz_at_12k8_init(int16 mem[]);
+ void highpass_400Hz_at_12k8(
+ int16 signal[], /* input/output signal */
+ int16 lg, /* lenght of signal */
+ int16 mem[] /* filter memory [6] */
+ );
+
+ void band_pass_6k_7k_init(int16 mem[]);
+ void band_pass_6k_7k(
+ int16 signal[], /* input: signal */
+ int16 lg, /* input: length of input */
+ int16 mem[], /* in/out: memory (size=30) */
+ int16 x[]
+ );
+
+
+ void preemph_amrwb_dec(
+ int16 x[], /* (i/o) : input signal overwritten by the output */
+ int16 mu, /* (i) Q15 : preemphasis coefficient */
+ int16 lg /* (i) : lenght of filtering */
+ );
+
+ void deemphasis_32(
+ int16 x_hi[], /* (i) : input signal (bit31..16) */
+ int16 x_lo[], /* (i) : input signal (bit15..4) */
+ int16 y[], /* (o) : output signal (x16) */
+ int16 mu, /* (i) Q15 : deemphasis factor */
+ int16 L, /* (i) : vector size */
+ int16 * mem /* (i/o) : memory (y[-1]) */
+ );
+
+
+ void wb_syn_filt(
+ int16 a[], /* (i) Q12 : a[m+1] prediction coefficients */
+ int16 m, /* (i) : order of LP filter */
+ int16 x[], /* (i) : input signal */
+ int16 y[], /* (o) : output signal */
+ int16 lg, /* (i) : size of filtering */
+ int16 mem[], /* (i/o) : memory associated with this filtering. */
+ int16 update, /* (i) : 0=no update, 1=update of memory. */
+ int16 y_buf[]
+ );
+ void Syn_filt_32(
+ int16 a[], /* (i) Q12 : a[m+1] prediction coefficients */
+ int16 m, /* (i) : order of LP filter */
+ int16 exc[], /* (i) Qnew: excitation (exc[i] >> Qnew) */
+ int16 Qnew, /* (i) : exc scaling = 0(min) to 8(max) */
+ int16 sig_hi[], /* (o) /16 : synthesis high */
+ int16 sig_lo[], /* (o) /16 : synthesis low */
+ int16 lg /* (i) : size of filtering */
+ );
+
+ /*-----------------------------------------------------------------*
+ * pitch prototypes *
+ *-----------------------------------------------------------------*/
+
+
+ void Pred_lt4(
+ int16 exc[], /* in/out: excitation buffer */
+ int16 T0, /* input : integer pitch lag */
+ int16 frac, /* input : fraction of lag */
+ int16 L_subfr /* input : subframe size */
+ );
+
+ /*-----------------------------------------------------------------*
+ * gain prototypes *
+ *-----------------------------------------------------------------*/
+
+
+ void dec_gain2_amr_wb_init(
+ int16 * mem /* output : memory (4 words) */
+ );
+ void dec_gain2_amr_wb(
+ int16 index, /* (i) :index of quantization. */
+ int16 nbits, /* (i) : number of bits (6 or 7) */
+ int16 code[], /* (i) Q9 :Innovative vector. */
+ int16 L_subfr, /* (i) :Subframe lenght. */
+ int16 * gain_pit, /* (o) Q14 :Pitch gain. */
+ int32 * gain_cod, /* (o) Q16 :Code gain. */
+ int16 bfi, /* (i) :bad frame indicator */
+ int16 prev_bfi, /* (i) : Previous BF indicator */
+ int16 state, /* (i) : State of BFH */
+ int16 unusable_frame, /* (i) : UF indicator */
+ int16 vad_hist, /* (i) :number of non-speech frames */
+ int16 * mem /* (i/o) : memory (4 words) */
+ );
+
+ /*-----------------------------------------------------------------*
+ * acelp prototypes *
+ *-----------------------------------------------------------------*/
+
+ void dec_acelp_2p_in_64(
+ int16 index, /* (i) : 12 bits index */
+ int16 code[] /* (o) :Q9 algebraic (fixed) codebook excitation */
+ );
+
+ void dec_acelp_4p_in_64(
+ int16 index[], /* (i) : index (20): 5+5+5+5 = 20 bits. */
+ /* (i) : index (36): 9+9+9+9 = 36 bits. */
+ /* (i) : index (44): 13+9+13+9 = 44 bits. */
+ /* (i) : index (52): 13+13+13+13 = 52 bits. */
+ /* (i) : index (64): 2+2+2+2+14+14+14+14 = 64 bits. */
+ /* (i) : index (72): 10+2+10+2+10+14+10+14 = 72 bits. */
+ /* (i) : index (88): 11+11+11+11+11+11+11+11 = 88 bits. */
+ int16 nbbits, /* (i) : 20, 36, 44, 52, 64, 72 or 88 bits */
+ int16 code[] /* (o) Q9: algebraic (fixed) codebook excitation */
+ );
+ void Pit_shrp(
+ int16 * x, /* in/out: impulse response (or algebraic code) */
+ int16 pit_lag, /* input : pitch lag */
+ int16 sharp, /* input : pitch sharpening factor (Q15) */
+ int16 L_subfr /* input : subframe size */
+ );
+
+
+ /*-----------------------------------------------------------------*
+ * others prototypes *
+ *-----------------------------------------------------------------*/
+
+ int16 voice_factor( /* (o) Q15 : factor (-1=unvoiced to 1=voiced) */
+ int16 exc[], /* (i) Q_exc: pitch excitation */
+ int16 Q_exc, /* (i) : exc format */
+ int16 gain_pit, /* (i) Q14 : gain of pitch */
+ int16 code[], /* (i) Q9 : Fixed codebook excitation */
+ int16 gain_code, /* (i) Q0 : gain of code */
+ int16 L_subfr /* (i) : subframe length */
+ );
+
+ void scale_signal(
+ int16 x[], /* (i/o) : signal to scale */
+ int16 lg, /* (i) : size of x[] */
+ int16 exp /* (i) : exponent: x = round(x << exp) */
+ );
+
+ int16 noise_gen_amrwb(int16 * seed);
+
+
+ void phase_dispersion(
+ int16 gain_code, /* (i) Q0 : gain of code */
+ int16 gain_pit, /* (i) Q14 : gain of pitch */
+ int16 code[], /* (i/o) : code vector */
+ int16 mode, /* (i) : level, 0=hi, 1=lo, 2=off */
+ int16 disp_mem[], /* (i/o) : memory (size = 8) */
+ int16 ScratchMem[]
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ACELP_H */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./src/pvamrwbdecoder_basic_op.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+
+#ifndef PVAMRWBDECODER_BASIC_OP_H
+#define PVAMRWBDECODER_BASIC_OP_H
+
+
+#include "normalize_amr_wb.h"
+
+
+#define MAX_32 (int32)0x7fffffffL
+#define MIN_32 (int32)0x80000000L
+
+#define MAX_16 (int16)+32767 /* 0x7fff */
+#define MIN_16 (int16)-32768 /* 0x8000 */
+
+
+
+
+/*----------------------------------------------------------------------------
+ Function Name : negate_int16
+
+ Negate var1 with saturation, saturate in the case where input is -32768:
+ negate(var1) = sub(0,var1).
+
+ Inputs :
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0x8000 <= var1 <= 0x7fff.
+
+ Outputs :
+ none
+
+ Return Value :
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0x8000 <= var_out <= 0x7fff.
+ ----------------------------------------------------------------------------*/
+
+static inline int16 negate_int16(int16 var1)
+{
+ return (((var1 == MIN_16) ? MAX_16 : -var1));
+}
+
+
+/*----------------------------------------------------------------------------
+
+ Function Name : shl_int16
+
+ Arithmetically shift the 16 bit input var1 left var2 positions.Zero fill
+ the var2 LSB of the result. If var2 is negative, arithmetically shift
+ var1 right by -var2 with sign extension. Saturate the result in case of
+ underflows or overflows.
+
+ Inputs :
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0x8000 <= var1 <= 0x7fff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0x8000 <= var1 <= 0x7fff.
+
+ Return Value :
+ var_out
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0x8000 <= var_out <= 0x7fff.
+ ----------------------------------------------------------------------------*/
+
+static inline int16 shl_int16(int16 var1, int16 var2)
+{
+ int16 var_out;
+
+ if (var2 < 0)
+ {
+ var2 = (-var2) & (0xf);
+ var_out = var1 >> var2;
+ }
+ else
+ {
+ var2 &= 0xf;
+ var_out = var1 << var2;
+ if (var_out >> var2 != var1)
+ {
+ var_out = (var1 >> 15) ^ MAX_16;
+ }
+ }
+ return (var_out);
+}
+
+
+/*----------------------------------------------------------------------------
+
+ Function Name : shl_int32
+
+ Arithmetically shift the 32 bit input L_var1 left var2 positions. Zero
+ fill the var2 LSB of the result. If var2 is negative, arithmetically
+ shift L_var1 right by -var2 with sign extension. Saturate the result in
+ case of underflows or overflows.
+
+ Inputs :
+ L_var1 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 8000 <= var2 <= 7fff.
+ Return Value :
+ 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
+
+ ----------------------------------------------------------------------------*/
+
+static inline int32 shl_int32(int32 L_var1, int16 var2)
+{
+ int32 L_var_out;
+
+ if (var2 > 0)
+ {
+ L_var_out = L_var1 << var2;
+ if (L_var_out >> var2 != L_var1)
+ {
+ L_var_out = (L_var1 >> 31) ^ MAX_32;
+ }
+ }
+ else
+ {
+ var2 = (-var2) & (0xf);
+ L_var_out = L_var1 >> var2;
+ }
+
+ return (L_var_out);
+}
+
+
+/*----------------------------------------------------------------------------
+
+ Function Name : shr_int32
+
+ Arithmetically shift the 32 bit input L_var1 right var2 positions with
+ sign extension. If var2 is negative, arithmetically shift L_var1 left
+ by -var2 and zero fill the -var2 LSB of the result. Saturate the result
+ in case of underflows or overflows.
+
+ Inputs :
+ L_var1 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 8000 <= var2 <= 7fff.
+ Return Value :
+ 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
+
+ ----------------------------------------------------------------------------*/
+
+static inline int32 shr_int32(int32 L_var1, int16 var2)
+{
+ int32 L_var_out;
+
+ if (var2 >= 0)
+ {
+ L_var_out = L_var1 >> (var2 & 0x1f);
+ }
+ else
+ {
+ var2 = (int16)(-var2);
+ var2 &= 0x1f;
+ L_var_out = L_var1 << var2;
+ if (L_var_out >> var2 != L_var1)
+ {
+ L_var_out = (L_var1 >> 31) ^ MAX_32;
+ }
+
+ }
+ return (L_var_out);
+}
+
+
+
+
+
+
+#if defined(PV_ARM_V5)
+
+#include "pvamrwbdecoder_basic_op_armv5.h"
+
+#elif defined(PV_ARM_GCC_V5)
+
+#include "pvamrwbdecoder_basic_op_gcc_armv5.h"
+
+#else
+
+#ifndef C_EQUIVALENT
+#define C_EQUIVALENT // default to C_EQUIVALENT
+#endif
+
+#include "pvamrwbdecoder_basic_op_cequivalent.h"
+
+#endif
+
+
+#endif /* PVAMRWBDECODER_BASIC_OP_H */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./src/pvamrwbdecoder_basic_op_cequivalent.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+#ifndef PVAMRWBDECODER_BASIC_OP_CEQUIVALENT_H
+#define PVAMRWBDECODER_BASIC_OP_CEQUIVALENT_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#include "normalize_amr_wb.h"
+
+#if defined(C_EQUIVALENT)
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : add_int16
+
+ Purpose :
+
+ Performs the addition (var1+var2) with overflow control and saturation;
+ the 16 bit result is set at +32767 when overflow occurs or at -32768
+ when underflow occurs.
+
+ Inputs :
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ Outputs :
+ none
+
+ Return Value :
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var_out <= 0x0000 7fff.
+
+ ----------------------------------------------------------------------------*/
+ static inline int16 add_int16(int16 var1, int16 var2)
+ {
+ int32 L_sum;
+
+ L_sum = (int32) var1 + var2;
+ if ((L_sum >> 15) != (L_sum >> 31))
+ {
+ L_sum = (L_sum >> 31) ^ MAX_16;
+ }
+ return ((int16)(L_sum));
+ }
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : sub_int16
+
+ Performs the subtraction (var1+var2) with overflow control and satu-
+ ration; the 16 bit result is set at +32767 when overflow occurs or at
+ -32768 when underflow occurs.
+
+ Inputs :
+
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ Outputs :
+ none
+
+ Return Value :
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var_out <= 0x0000 7fff.
+
+ ----------------------------------------------------------------------------*/
+ static inline int16 sub_int16(int16 var1, int16 var2)
+ {
+ int32 L_diff;
+
+ L_diff = (int32) var1 - var2;
+ if ((L_diff >> 15) != (L_diff >> 31))
+ {
+ L_diff = (L_diff >> 31) ^ MAX_16;
+ }
+ return ((int16)(L_diff));
+ }
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : mult_int16
+
+ Performs the multiplication of var1 by var2 and gives a 16 bit result
+ which is scaled i.e.:
+ mult_int16(var1,var2) = extract_l(L_shr((var1 times var2),15)) and
+ mult_int16(-32768,-32768) = 32767.
+
+ Inputs :
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+
+ Return Value :
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var_out <= 0x0000 7fff.
+
+ ----------------------------------------------------------------------------*/
+
+ static inline int16 mult_int16(int16 var1, int16 var2)
+ {
+ int32 L_product;
+
+ L_product = ((int32) var1 * (int32) var2) >> 15;
+
+ if ((L_product >> 15) != (L_product >> 31))
+ {
+ L_product = (L_product >> 31) ^ MAX_16;
+ }
+
+ return ((int16)L_product);
+ }
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : add_int32
+
+ 32 bits addition of the two 32 bits variables (L_var1+L_var2) with
+ overflow control and saturation; the result is set at +2147483647 when
+ overflow occurs or at -2147483648 when underflow occurs.
+
+ Inputs :
+
+ L_var1 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+
+ L_var2 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+
+
+ Return Value :
+ L_var_out
+ 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
+
+ ----------------------------------------------------------------------------*/
+
+
+ static inline int32 add_int32(int32 L_var1, int32 L_var2)
+ {
+ int32 L_var_out;
+
+ L_var_out = L_var1 + L_var2;
+
+ if (((L_var1 ^ L_var2) & MIN_32) == 0) /* same sign ? */
+ {
+ if ((L_var_out ^ L_var1) & MIN_32) /* addition matches sign ? */
+ {
+ L_var_out = (L_var1 >> 31) ^ MAX_32;
+ }
+ }
+ return (L_var_out);
+ }
+
+
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : sub_int32
+
+ 32 bits subtraction of the two 32 bits variables (L_var1-L_var2) with
+ overflow control and saturation; the result is set at +2147483647 when
+ overflow occurs or at -2147483648 when underflow occurs.
+
+ Inputs :
+
+ L_var1 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+
+ L_var2 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+
+
+ Return Value :
+ L_var_out
+ 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
+
+ ----------------------------------------------------------------------------*/
+
+
+ static inline int32 sub_int32(int32 L_var1, int32 L_var2)
+ {
+ int32 L_var_out;
+
+ L_var_out = L_var1 - L_var2;
+
+ if (((L_var1 ^ L_var2) & MIN_32) != 0) /* different sign ? */
+ {
+ if ((L_var_out ^ L_var1) & MIN_32) /* difference matches sign ? */
+ {
+ L_var_out = (L_var1 >> 31) ^ MAX_32;
+ }
+ }
+ return (L_var_out);
+ }
+
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : mac_16by16_to_int32
+
+ Multiply var1 by var2 and shift the result left by 1. Add the 32 bit
+ result to L_var3 with saturation, return a 32 bit result:
+ L_mac(L_var3,var1,var2) = L_add(L_var3,L_mult(var1,var2)).
+
+ Inputs :
+
+ L_var3 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+
+ Return Value :
+ 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
+
+ ----------------------------------------------------------------------------*/
+
+
+ static inline int32 mac_16by16_to_int32(int32 L_var3, int16 var1, int16 var2)
+ {
+ int32 L_var_out;
+ int32 L_mul;
+
+ L_mul = ((int32) var1 * (int32) var2);
+
+ if (L_mul != 0x40000000)
+ {
+ L_mul <<= 1;
+ }
+ else
+ {
+ L_mul = MAX_32; /* saturation */
+ }
+
+ L_var_out = L_var3 + L_mul;
+
+ if (((L_mul ^ L_var3) & MIN_32) == 0) /* same sign ? */
+ {
+ if ((L_var_out ^ L_var3) & MIN_32) /* addition matches sign ? */
+ {
+ L_var_out = (L_var3 >> 31) ^ MAX_32;
+ }
+ }
+
+ return (L_var_out);
+ }
+
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : msu_16by16_from_int32
+
+ Multiply var1 by var2 and shift the result left by 1. Subtract the 32 bit
+ result to L_var3 with saturation, return a 32 bit result:
+ L_msu(L_var3,var1,var2) = L_sub(L_var3,L_mult(var1,var2)).
+
+ Inputs :
+
+ L_var3 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var3 <= 0x7fff ffff.
+
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+
+ Return Value :
+ 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
+
+ ----------------------------------------------------------------------------*/
+
+ static inline int32 msu_16by16_from_int32(int32 L_var3, int16 var1, int16 var2)
+ {
+ int32 L_var_out;
+ int32 L_mul;
+
+ L_mul = ((int32) var1 * (int32) var2);
+
+ if (L_mul != 0x40000000)
+ {
+ L_mul <<= 1;
+ }
+ else
+ {
+ L_mul = MAX_32; /* saturation */
+ }
+
+ L_var_out = L_var3 - L_mul;
+
+ if (((L_mul ^ L_var3) & MIN_32) != 0) /* different sign ? */
+ {
+ if ((L_var_out ^ L_var3) & MIN_32) /* difference matches sign ? */
+ {
+ L_var_out = (L_var3 >> 31) ^ MAX_32;
+ }
+ }
+
+ return (L_var_out);
+ }
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : mul_16by16_to_int32
+
+ mul_16by16_to_int32 is the 32 bit result of the multiplication of var1
+ times var2 with one shift left i.e.:
+ L_mult(var1,var2) = L_shl((var1 times var2),1) and
+ L_mult(-32768,-32768) = 2147483647.
+
+ Inputs :
+ var1
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ var2
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var1 <= 0x0000 7fff.
+
+ Return Value :
+ 32 bit long signed integer (int32) whose value falls in the
+ range : 0x8000 0000 <= L_var_out <= 0x7fff ffff.
+
+ ----------------------------------------------------------------------------*/
+
+
+ static inline int32 mul_16by16_to_int32(int16 var1, int16 var2)
+ {
+ int32 L_mul;
+
+ L_mul = ((int32) var1 * (int32) var2);
+
+ if (L_mul != 0x40000000)
+ {
+ L_mul <<= 1;
+ }
+ else
+ {
+ L_mul = MAX_32; /* saturation */
+ }
+
+ return (L_mul);
+
+ }
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : amr_wb_round
+
+ Round the lower 16 bits of the 32 bit input number into the MS 16 bits
+ with saturation. Shift the resulting bits right by 16 and return the 16
+ bit number:
+ round(L_var1) = extract_h(L_add(L_var1,32768))
+
+ Inputs :
+ L_var1
+ 32 bit long signed integer (int32 ) whose value falls in the
+ range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ Return Value :
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var_out <= 0x0000 7fff.
+
+ ----------------------------------------------------------------------------*/
+ static inline int16 amr_wb_round(int32 L_var1)
+ {
+ if (L_var1 != MAX_32)
+ {
+ L_var1 += 0x00008000L;
+ }
+ return ((int16)(L_var1 >> 16));
+ }
+
+
+ /*----------------------------------------------------------------------------
+
+ Function Name : amr_wb_shl1_round
+
+ Shift the 32 bit input number to the left by 1, round up the result and
+ shift down by 16
+ amr_wb_shl1_round(L_var1) = round(L_shl(L_var1,1))
+
+ Inputs :
+ L_var1
+ 32 bit long signed integer (int32 ) whose value falls in the
+ range : 0x8000 0000 <= L_var1 <= 0x7fff ffff.
+
+ Return Value :
+ 16 bit short signed integer (int16) whose value falls in the
+ range : 0xffff 8000 <= var_out <= 0x0000 7fff.
+
+ ----------------------------------------------------------------------------*/
+ static inline int16 amr_wb_shl1_round(int32 L_var1)
+ {
+ int16 var_out;
+
+ if ((L_var1 << 1) >> 1 == L_var1)
+ {
+ var_out = (int16)((L_var1 + 0x00004000) >> 15);
+ }
+ else
+ {
+ var_out = (int16)(((L_var1 >> 31) ^ MAX_32) >> 16);
+ }
+
+ return (var_out);
+ }
+
+ /*----------------------------------------------------------------------------
+ Function Name : mul_32by16
+
+ Multiply a 16 bit integer by a 32 bit (DPF). The result is divided
+ by 2^15
+
+ L_32 = (hi1*lo2)<<1 + ((lo1*lo2)>>15)<<1
+
+ Inputs :
+
+ hi hi part of 32 bit number.
+ lo lo part of 32 bit number.
+ n 16 bit number.
+
+ ----------------------------------------------------------------------------*/
+
+
+ static inline int32 mul_32by16(int16 hi, int16 lo, int16 n)
+ {
+ return (((((int32)hi*n)) + ((((int32)lo*n) >> 15))) << 1);
+ }
+
+ static inline int32 fxp_mac_16by16(int16 var1, int16 var2, int32 L_add)
+ {
+
+ L_add += (int32)var1 * var2;
+
+ return L_add;
+ }
+
+ static inline int32 fxp_mul_16by16(int16 var1, const int16 var2)
+ {
+ int32 L_mul = (int32)var1 * var2;
+
+ return L_mul;
+ }
+
+ static inline int32 fxp_mul32_by_16b(int32 L_var1, const int32 L_var2)
+ {
+
+ int32 L_mul = (int32)(((int64)L_var1 * (L_var2 << 16)) >> 32);
+
+ return L_mul;
+ }
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+#endif /* PVAMRWBDECODER_BASIC_OP_CEQUIVALENT_H */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./src/pvamrwbdecoder_basic_op_gcc_armv5.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef PVAMRWBDECODER_BASIC_OP_GCC_ARMV5_H
+#define PVAMRWBDECODER_BASIC_OP_GCC_ARMV5_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#if (defined(PV_ARM_GCC_V5)||defined(PV_ARM_GCC_V4))
+
+ static inline int16 sub_int16(int16 var1, int16 var2)
+ {
+ register int32 L_var_out;
+ register int32 L_var_aux;
+ register int32 ra = (int32)var1;
+ register int32 rb = (int32)var2;
+
+ asm volatile(
+ "mov %0, %2, lsl #16\n"
+ "mov %1, %3, lsl #16\n"
+ "qsub %0, %0, %1\n"
+ "mov %0, %0, asr #16"
+ : "=&r*i"(L_var_out),
+ "=&r*i"(L_var_aux)
+ : "r"(ra),
+ "r"(rb));
+
+ return (int16)L_var_out;
+
+ }
+
+ static inline int16 add_int16(int16 var1, int16 var2)
+{
+ register int32 L_var_out;
+ register int32 L_var_aux;
+ register int32 ra = (int32)var1;
+ register int32 rb = (int32)var2;
+
+ asm volatile(
+ "mov %0, %2, lsl #16\n"
+ "mov %1, %3, lsl #16\n"
+ "qadd %0, %0, %1\n"
+ "mov %0, %0, asr #16"
+ : "=&r*i"(L_var_out),
+ "=&r*i"(L_var_aux)
+ : "r"(ra),
+ "r"(rb));
+
+ return (int16)L_var_out;
+
+ }
+
+ static inline int32 mul_32by16(int16 hi, int16 lo, int16 n)
+{
+ register int32 H_32;
+ register int32 L_32;
+ register int32 ra = (int32)hi;
+ register int32 rb = (int32)lo;
+ register int32 rc = (int32)n;
+
+
+ asm volatile(
+ "smulbb %0, %2, %4\n"
+ "smulbb %1, %3, %4\n"
+ "add %0, %0, %1, asr #15\n"
+ "qadd %0, %0, %0"
+ : "=&r*i"(H_32),
+ "=&r*i"(L_32)
+ : "r"(ra),
+ "r"(rb),
+ "r"(rc));
+
+ return H_32;
+ }
+
+
+ static inline int32 sub_int32(int32 L_var1, int32 L_var2)
+{
+ register int32 L_var_out;
+ register int32 ra = L_var1;
+ register int32 rb = L_var2;
+
+ asm volatile(
+ "qsub %0, %1, %2"
+ : "=&r*i"(L_var_out)
+ : "r"(ra),
+ "r"(rb));
+
+ return L_var_out;
+ }
+
+ static inline int32 add_int32(int32 L_var1, int32 L_var2)
+{
+ register int32 L_var_out;
+ register int32 ra = L_var1;
+ register int32 rb = L_var2;
+
+ asm volatile(
+ "qadd %0, %1, %2"
+ : "=&r*i"(L_var_out)
+ : "r"(ra),
+ "r"(rb));
+
+ return L_var_out;
+ }
+
+ static inline int32 msu_16by16_from_int32(int32 L_var3, int16 var1, int16 var2)
+{
+ register int32 L_var_out;
+ register int32 ra = (int32)var1;
+ register int32 rb = (int32)var2;
+ register int32 rc = L_var3;
+
+ asm volatile(
+ "smulbb %0, %1, %2\n"
+ "qdsub %0, %3, %0"
+ : "=&r*i"(L_var_out)
+ : "r"(ra),
+ "r"(rb),
+ "r"(rc));
+
+ return L_var_out;
+ }
+
+
+ static inline int32 mac_16by16_to_int32(int32 L_var3, int16 var1, int16 var2)
+{
+ register int32 L_var_out;
+ register int32 ra = (int32)var1;
+ register int32 rb = (int32)var2;
+ register int32 rc = L_var3;
+
+ asm volatile(
+ "smulbb %0, %1, %2\n"
+ "qdadd %0, %3, %0"
+ : "=&r*i"(L_var_out)
+ : "r"(ra),
+ "r"(rb),
+ "r"(rc));
+
+ return L_var_out;
+ }
+
+
+ static inline int32 mul_16by16_to_int32(int16 var1, int16 var2)
+{
+ register int32 L_var_out;
+ register int32 ra = (int32)var1;
+ register int32 rb = (int32)var2;
+
+ asm volatile(
+ "smulbb %0, %1, %2\n"
+ "qadd %0, %0, %0"
+ : "=&r*i"(L_var_out)
+ : "r"(ra),
+ "r"(rb));
+
+ return L_var_out;
+ }
+
+
+ static inline int16 mult_int16(int16 var1, int16 var2)
+{
+ register int32 L_var_out;
+ register int32 ra = (int32)var1;
+ register int32 rb = (int32)var2;
+
+ asm volatile(
+ "smulbb %0, %1, %2\n"
+ "mov %0, %0, asr #15"
+ : "=&r*i"(L_var_out)
+ : "r"(ra),
+ "r"(rb));
+
+ return (int16)L_var_out;
+ }
+
+ static inline int16 amr_wb_round(int32 L_var1)
+{
+ register int32 L_var_out;
+ register int32 ra = (int32)L_var1;
+ register int32 rb = (int32)0x00008000L;
+
+ asm volatile(
+ "qadd %0, %1, %2\n"
+ "mov %0, %0, asr #16"
+ : "=&r*i"(L_var_out)
+ : "r"(ra),
+ "r"(rb));
+ return (int16)L_var_out;
+ }
+
+ static inline int16 amr_wb_shl1_round(int32 L_var1)
+{
+ register int32 L_var_out;
+ register int32 ra = (int32)L_var1;
+ register int32 rb = (int32)0x00008000L;
+
+ asm volatile(
+ "qadd %0, %1, %1\n"
+ "qadd %0, %0, %2\n"
+ "mov %0, %0, asr #16"
+ : "=&r*i"(L_var_out)
+ : "r"(ra),
+ "r"(rb));
+ return (int16)L_var_out;
+ }
+
+
+ static inline int32 fxp_mac_16by16(const int16 L_var1, const int16 L_var2, int32 L_add)
+{
+ register int32 tmp;
+ register int32 ra = (int32)L_var1;
+ register int32 rb = (int32)L_var2;
+ register int32 rc = (int32)L_add;
+
+ asm volatile(
+ "smlabb %0, %1, %2, %3"
+ : "=&r*i"(tmp)
+ : "r"(ra),
+ "r"(rb),
+ "r"(rc));
+ return (tmp);
+ }
+
+ static inline int32 fxp_mul_16by16bb(int16 L_var1, const int16 L_var2)
+{
+ register int32 tmp;
+ register int32 ra = (int32)L_var1;
+ register int32 rb = (int32)L_var2;
+
+ asm volatile(
+ "smulbb %0, %1, %2"
+ : "=&r*i"(tmp)
+ : "r"(ra),
+ "r"(rb));
+ return (tmp);
+ }
+
+
+#define fxp_mul_16by16(a, b) fxp_mul_16by16bb( a, b)
+
+
+ static inline int32 fxp_mul32_by_16(int32 L_var1, const int32 L_var2)
+{
+ register int32 tmp;
+ register int32 ra = (int32)L_var1;
+ register int32 rb = (int32)L_var2;
+
+ asm volatile(
+ "smulwb %0, %1, %2"
+ : "=&r*i"(tmp)
+ : "r"(ra),
+ "r"(rb));
+ return (tmp);
+ }
+
+#define fxp_mul32_by_16b( a, b) fxp_mul32_by_16( a, b)
+
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
+
+#endif /* PVAMRWBDECODER_BASIC_OP_GCC_ARMV5_H */
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+ Name: pvamrwbdecoder_cnst.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Main header file for the Packet Video AMR Wide Band decoder library. The
+ constants, structures, and functions defined within this file, along with
+ a basic data types header file, is all that is needed to use and communicate
+ with the library. The internal data structures within the library are
+ purposely hidden.
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (Normally header files do not have a reference section)
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+
+#ifndef PVAMRWBDECODER_CNST_H
+#define PVAMRWBDECODER_CNST_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+#define L_FRAME 256 /* Frame size */
+#define L_SUBFR16k 80 /* Subframe size at 16kHz */
+
+#define L_SUBFR 64 /* Subframe size */
+#define NB_SUBFR 4 /* Number of subframe per frame */
+
+#define L_NEXT 64 /* Overhead in LP analysis */
+#define L_WINDOW 384 /* window size in LP analysis */
+#define L_TOTAL 384 /* Total size of speech buffer. */
+#define M 16 /* Order of LP filter */
+#define M16k 20
+
+#define L_FILT16k 15 /* Delay of down-sampling filter */
+#define L_FILT 12 /* Delay of up-sampling filter */
+
+#define GP_CLIP 15565 /* Pitch gain clipping = 0.95 Q14 */
+#define PIT_SHARP 27853 /* pitch sharpening factor = 0.85 Q15 */
+
+#define PIT_MIN 34 /* Minimum pitch lag with resolution 1/4 */
+#define PIT_FR2 128 /* Minimum pitch lag with resolution 1/2 */
+#define PIT_FR1_9b 160 /* Minimum pitch lag with resolution 1 */
+#define PIT_FR1_8b 92 /* Minimum pitch lag with resolution 1 */
+#define PIT_MAX 231 /* Maximum pitch lag */
+#define L_INTERPOL (16+1) /* Length of filter for interpolation */
+
+#define OPL_DECIM 2 /* Decimation in open-loop pitch analysis */
+
+#define PREEMPH_FAC 22282 /* preemphasis factor (0.68 in Q15) */
+#define GAMMA1 30147 /* Weighting factor (numerator) (0.92 in Q15) */
+#define TILT_FAC 22282 /* tilt factor (denominator) (0.68 in Q15) */
+
+#define Q_MAX 8 /* scaling max for signal (see syn_filt_32) */
+
+#define RANDOM_INITSEED 21845 /* own random init value */
+
+#define L_MEANBUF 3
+#define ONE_PER_MEANBUF 10923
+
+#define MODE_7k 0
+#define MODE_9k 1
+#define MODE_12k 2
+#define MODE_14k 3
+#define MODE_16k 4
+#define MODE_18k 5
+#define MODE_20k 6
+#define MODE_23k 7
+#define MODE_24k 8
+#define MRDTX 9
+//#define NUM_OF_MODES 10 /* see bits.h for bits definition */
+
+#define EHF_MASK (int16)0x0008 /* homing frame pattern */
+
+#define BIT_0 (int16)-127
+#define BIT_1 (int16)127
+#define BIT_0_ITU (int16)0x007F
+#define BIT_1_ITU (int16)0x0081
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: pvamrwbdecoder_mem_funcs.h
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+
+#ifndef PVAMRWBDECODER_MEM_FUNCS_H
+#define PVAMRWBDECODER_MEM_FUNCS_H
+
+
+#include "oscl_mem.h"
+
+
+
+#define pv_memset(to, c, n) oscl_memset(to, c, n)
+
+
+#define pv_memcpy(to, from, n) oscl_memcpy(to, from, n)
+#define pv_memmove(to, from, n) oscl_memmove(to, from, n)
+#define pv_memcmp(p, q, n) oscl_memcmp(p, q, n)
+
+
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+#include "qisf_ns.h"
+
+
+/*
+ * Tables for function q_gain2()
+ *
+ * g_pitch(Q14), g_code(Q11)
+ *
+ * pitch gain are ordered in table to reduce complexity
+ * during quantization of gains.
+ */
+
+
+
+
+const int16 t_qua_gain6b[NB_QUA_GAIN6B*2] =
+{
+ 1566, 1332,
+ 1577, 3557,
+ 3071, 6490,
+ 4193, 10163,
+ 4496, 2534,
+ 5019, 4488,
+ 5586, 15614,
+ 5725, 1422,
+ 6453, 580,
+ 6724, 6831,
+ 7657, 3527,
+ 8072, 2099,
+ 8232, 5319,
+ 8827, 8775,
+ 9740, 2868,
+ 9856, 1465,
+ 10087, 12488,
+ 10241, 4453,
+ 10859, 6618,
+ 11321, 3587,
+ 11417, 1800,
+ 11643, 2428,
+ 11718, 988,
+ 12312, 5093,
+ 12523, 8413,
+ 12574, 26214,
+ 12601, 3396,
+ 13172, 1623,
+ 13285, 2423,
+ 13418, 6087,
+ 13459, 12810,
+ 13656, 3607,
+ 14111, 4521,
+ 14144, 1229,
+ 14425, 1871,
+ 14431, 7234,
+ 14445, 2834,
+ 14628, 10036,
+ 14860, 17496,
+ 15161, 3629,
+ 15209, 5819,
+ 15299, 2256,
+ 15518, 4722,
+ 15663, 1060,
+ 15759, 7972,
+ 15939, 11964,
+ 16020, 2996,
+ 16086, 1707,
+ 16521, 4254,
+ 16576, 6224,
+ 16894, 2380,
+ 16906, 681,
+ 17213, 8406,
+ 17610, 3418,
+ 17895, 5269,
+ 18168, 11748,
+ 18230, 1575,
+ 18607, 32767,
+ 18728, 21684,
+ 19137, 2543,
+ 19422, 6577,
+ 19446, 4097,
+ 19450, 9056,
+ 20371, 14885
+};
+
+const int16 t_qua_gain7b[NB_QUA_GAIN7B*2] =
+{
+ 204, 441,
+ 464, 1977,
+ 869, 1077,
+ 1072, 3062,
+ 1281, 4759,
+ 1647, 1539,
+ 1845, 7020,
+ 1853, 634,
+ 1995, 2336,
+ 2351, 15400,
+ 2661, 1165,
+ 2702, 3900,
+ 2710, 10133,
+ 3195, 1752,
+ 3498, 2624,
+ 3663, 849,
+ 3984, 5697,
+ 4214, 3399,
+ 4415, 1304,
+ 4695, 2056,
+ 5376, 4558,
+ 5386, 676,
+ 5518, 23554,
+ 5567, 7794,
+ 5644, 3061,
+ 5672, 1513,
+ 5957, 2338,
+ 6533, 1060,
+ 6804, 5998,
+ 6820, 1767,
+ 6937, 3837,
+ 7277, 414,
+ 7305, 2665,
+ 7466, 11304,
+ 7942, 794,
+ 8007, 1982,
+ 8007, 1366,
+ 8326, 3105,
+ 8336, 4810,
+ 8708, 7954,
+ 8989, 2279,
+ 9031, 1055,
+ 9247, 3568,
+ 9283, 1631,
+ 9654, 6311,
+ 9811, 2605,
+ 10120, 683,
+ 10143, 4179,
+ 10245, 1946,
+ 10335, 1218,
+ 10468, 9960,
+ 10651, 3000,
+ 10951, 1530,
+ 10969, 5290,
+ 11203, 2305,
+ 11325, 3562,
+ 11771, 6754,
+ 11839, 1849,
+ 11941, 4495,
+ 11954, 1298,
+ 11975, 15223,
+ 11977, 883,
+ 11986, 2842,
+ 12438, 2141,
+ 12593, 3665,
+ 12636, 8367,
+ 12658, 1594,
+ 12886, 2628,
+ 12984, 4942,
+ 13146, 1115,
+ 13224, 524,
+ 13341, 3163,
+ 13399, 1923,
+ 13549, 5961,
+ 13606, 1401,
+ 13655, 2399,
+ 13782, 3909,
+ 13868, 10923,
+ 14226, 1723,
+ 14232, 2939,
+ 14278, 7528,
+ 14439, 4598,
+ 14451, 984,
+ 14458, 2265,
+ 14792, 1403,
+ 14818, 3445,
+ 14899, 5709,
+ 15017, 15362,
+ 15048, 1946,
+ 15069, 2655,
+ 15405, 9591,
+ 15405, 4079,
+ 15570, 7183,
+ 15687, 2286,
+ 15691, 1624,
+ 15699, 3068,
+ 15772, 5149,
+ 15868, 1205,
+ 15970, 696,
+ 16249, 3584,
+ 16338, 1917,
+ 16424, 2560,
+ 16483, 4438,
+ 16529, 6410,
+ 16620, 11966,
+ 16839, 8780,
+ 17030, 3050,
+ 17033, 18325,
+ 17092, 1568,
+ 17123, 5197,
+ 17351, 2113,
+ 17374, 980,
+ 17566, 26214,
+ 17609, 3912,
+ 17639, 32767,
+ 18151, 7871,
+ 18197, 2516,
+ 18202, 5649,
+ 18679, 3283,
+ 18930, 1370,
+ 19271, 13757,
+ 19317, 4120,
+ 19460, 1973,
+ 19654, 10018,
+ 19764, 6792,
+ 19912, 5135,
+ 20040, 2841,
+ 21234, 19833
+};
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./cpp/include/q_pulse.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Coding and decoding of algebraic codebook
+------------------------------------------------------------------------------
+*/
+
+#ifndef Q_PULSE_H
+#define Q_PULSE_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+ void dec_1p_N1(int32 index, int16 N, int16 offset, int16 pos[]);
+ void dec_2p_2N1(int32 index, int16 N, int16 offset, int16 pos[]);
+ void dec_3p_3N1(int32 index, int16 N, int16 offset, int16 pos[]);
+ void dec_4p_4N1(int32 index, int16 N, int16 offset, int16 pos[]);
+ void dec_4p_4N(int32 index, int16 N, int16 offset, int16 pos[]);
+ void dec_5p_5N(int32 index, int16 N, int16 offset, int16 pos[]);
+ void dec_6p_6N_2(int32 index, int16 N, int16 offset, int16 pos[]);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Q_PULSE_H */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: qisf_ns.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 indice[] : indices of the selected codebook entries
+ int16 isf[] : quantized ISFs (in frequency domain)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Coding/Decoding of ISF parameters for background noise.
+
+ The ISF vector is quantized using VQ with split-by-5
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+#include "qisf_ns.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void Disf_ns(
+ int16 * indice, /* input: quantization indices */
+ int16 * isf_q /* input: ISF in the frequency domain (0..0.5)*/
+)
+{
+ int16 i;
+
+ isf_q[0] = dico1_isf_noise[(indice[0] << 1)];
+ isf_q[1] = dico1_isf_noise[(indice[0] << 1) + 1];
+
+ for (i = 0; i < 3; i++)
+ {
+ isf_q[i + 2] = dico2_isf_noise[(indice[1] << 1) + indice[1] + i];
+ isf_q[i + 5] = dico3_isf_noise[(indice[2] << 1) + indice[2] + i];
+ }
+
+ for (i = 0; i < 4; i++)
+ {
+ isf_q[i + 8] = dico4_isf_noise[(indice[3] << 2) + i];
+ isf_q[i + 12] = dico5_isf_noise[(indice[4] << 2) + i];
+ }
+
+ for (i = 0; i < ORDER; i++)
+ {
+ isf_q[i] = add_int16(isf_q[i], mean_isf_noise[i]);
+ }
+
+ Reorder_isf(isf_q, ISF_GAP, ORDER);
+
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./cpp/include/qisf_ns.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef QISF_NS_H
+#define QISF_NS_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; DEFINES
+----------------------------------------------------------------------------*/
+
+
+#define ORDER 16 /* order of linear prediction filter */
+#define ISF_GAP 128
+
+#define SIZE_BK_NOISE1 64
+#define SIZE_BK_NOISE2 64
+#define SIZE_BK_NOISE3 64
+#define SIZE_BK_NOISE4 32
+#define SIZE_BK_NOISE5 32
+
+#define NB_QUA_GAIN6B 64 /* Number of quantization level */
+#define NB_QUA_GAIN7B 128 /* Number of quantization level */
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+----------------------------------------------------------------------------*/
+extern const int16 mean_isf_noise[ORDER];
+extern const int16 dico1_isf_noise[SIZE_BK_NOISE1*2];
+extern const int16 dico2_isf_noise[SIZE_BK_NOISE2*3];
+extern const int16 dico3_isf_noise[SIZE_BK_NOISE3*3];
+extern const int16 dico4_isf_noise[SIZE_BK_NOISE4*4];
+extern const int16 dico5_isf_noise[SIZE_BK_NOISE5*4];
+
+extern const int16 t_qua_gain6b[NB_QUA_GAIN6B*2];
+extern const int16 t_qua_gain7b[NB_QUA_GAIN7B*2];
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
+
+#endif /* QISF_NS_H */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+ * qisf_ns_tab.cpp
+ *
+ * Quantization tables for split by 5 VQ of ISFs for a background
+ * noise database
+ * Version whith no prediction
+ */
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "qisf_ns.h"
+
+
+/* means of ISFs */
+const int16 mean_isf_noise[ORDER] =
+{
+
+ 478, 1100, 2213, 3267, 4219, 5222, 6198, 7240,
+ 8229, 9153, 10098, 11108, 12144, 13184, 14165, 3803
+};
+
+
+/* 28 bits */
+/*
+ * isf codebooks: split-by-5 VQ
+ *
+ * codebook vector dimension number of vectors
+ * ~~~~~~~~ ~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~
+ * 1 2 64
+ * 2 3 64
+ * 3 3 64
+ * 4 4 32
+ * 5 4 32
+ */
+
+/*
+ * 1st split: isf0 to isf1
+ */
+
+
+const int16 dico1_isf_noise[SIZE_BK_NOISE1*2] =
+{
+
+ -269, -673,
+ -222, -537,
+ -233, -430,
+ -138, -451,
+ -212, -331,
+ -192, -241,
+ -87, -231,
+ -191, -128,
+ -70, -106,
+ -164, -6,
+ 74, -179,
+ 27, -33,
+ -102, 74,
+ -162, 115,
+ -94, 172,
+ -6, 130,
+ -143, 234,
+ 14, 218,
+ -65, 270,
+ 88, 182,
+ -124, 341,
+ -44, 381,
+ 38, 335,
+ 117, 274,
+ -112, 454,
+ 74, 431,
+ -5, 488,
+ 175, 384,
+ -83, 561,
+ 122, 529,
+ 21, 601,
+ 229, 481,
+ 231, 303,
+ 226, 608,
+ 300, 372,
+ 210, 187,
+ 306, 265,
+ 328, 473,
+ 382, 331,
+ 371, 132,
+ 139, 58,
+ 365, 21,
+ 250, -82,
+ 443, 218,
+ 483, 110,
+ 426, 415,
+ 579, 222,
+ 518, 333,
+ 573, 448,
+ 455, 529,
+ 685, 329,
+ 332, 580,
+ 595, 593,
+ 468, 645,
+ 762, 517,
+ 326, 709,
+ 485, 793,
+ 130, 684,
+ 671, 737,
+ 354, 876,
+ 88, 806,
+ -65, 706,
+ -35, 1016,
+ 266, 1123
+};
+
+
+/*
+ * 2nd split: isf2 to isf4
+ */
+
+const int16 dico2_isf_noise[SIZE_BK_NOISE2*3] =
+{
+
+ -824, -884, -949,
+ -805, -456, -418,
+ -442, -438, -541,
+ -217, -578, -793,
+ -168, -444, -582,
+ -287, -492, -274,
+ -552, -297, -300,
+ -163, -333, -358,
+ -370, -232, -232,
+ -175, -358, -159,
+ -381, -21, -357,
+ -184, -159, -162,
+ -53, -191, -280,
+ 18, -267, -215,
+ -138, 61, -283,
+ 71, -95, -294,
+ 13, -156, -546,
+ 0, -83, -79,
+ 44, 97, -316,
+ 178, -52, -213,
+ 222, -261, -422,
+ 237, -118, -44,
+ 141, 145, -132,
+ 363, 81, -287,
+ 213, 65, 34,
+ -107, 94, -5,
+ 91, -29, 126,
+ -355, 51, -41,
+ -219, -76, 145,
+ -63, 100, 244,
+ -719, 44, 27,
+ -572, -124, 155,
+ -423, 133, 315,
+ -917, 71, 224,
+ -268, 318, 131,
+ -93, -190, 420,
+ -97, 122, 491,
+ -79, 317, 355,
+ 130, 100, 325,
+ 86, -293, 210,
+ 133, 258, 161,
+ 176, -73, 465,
+ 195, 300, 384,
+ 348, 22, 221,
+ 376, 183, 409,
+ 377, 286, 202,
+ 242, 213, 659,
+ 257, 565, 248,
+ 344, 408, -76,
+ 405, 440, 509,
+ 612, 385, 379,
+ 536, 607, 216,
+ -56, 582, 192,
+ 100, 517, 567,
+ -365, 448, 445,
+ 728, 347, 10,
+ 505, 357, 759,
+ 636, 582, 658,
+ 335, 517, 852,
+ 378, 809, 572,
+ -195, 878, 829,
+ 529, 707, 987,
+ 918, 726, 392,
+ 1250, 997, 1063
+};
+
+/*
+ * 3rd split: isf5 to isf7
+ */
+
+const int16 dico3_isf_noise[SIZE_BK_NOISE3*3] =
+{
+
+ -805, -838, -774,
+ -522, -627, -828,
+ -477, -486, -603,
+ -295, -481, -634,
+ -366, -384, -393,
+ -186, -414, -396,
+ -237, -394, -106,
+ -252, -202, -275,
+ -61, -177, -442,
+ -84, -198, -199,
+ -179, -125, -31,
+ -72, -47, -163,
+ -298, -220, 215,
+ -64, -168, 251,
+ -133, 156, -59,
+ -30, -2, 127,
+ 54, 66, -61,
+ -233, 21, 251,
+ 209, -50, 32,
+ 33, 194, 136,
+ -117, -18, 475,
+ 202, 46, 309,
+ 256, 185, 53,
+ 35, 200, 390,
+ 200, 263, 242,
+ -216, 302, 294,
+ 128, 358, 0,
+ 19, 431, 287,
+ 224, 447, 280,
+ 367, 165, 213,
+ 397, 314, 319,
+ 383, 379, 75,
+ 277, 325, 462,
+ 394, 505, 334,
+ 251, 98, -213,
+ 450, 153, 448,
+ 565, 226, 76,
+ 470, 383, 502,
+ 635, 390, 278,
+ 237, 135, 620,
+ 342, 401, 649,
+ 331, 551, 518,
+ 130, 418, 592,
+ 531, 306, 737,
+ 729, 389, 580,
+ 497, 557, 699,
+ 296, 383, 874,
+ 283, 624, 759,
+ 126, 622, 476,
+ 559, 595, 472,
+ 382, 770, 616,
+ 719, 613, 745,
+ 540, 639, 928,
+ 517, 826, 801,
+ 684, 811, 604,
+ 752, 786, 857,
+ 933, 661, 350,
+ 694, 450, 1061,
+ 562, 911, 1051,
+ 824, 813, 1104,
+ 758, 1047, 882,
+ 1140, 917, 889,
+ 1039, 1246, 1426,
+ 1483, 1666, 1876
+};
+
+/*
+ * 4th split: isf8 to isf11
+ */
+
+const int16 dico4_isf_noise[SIZE_BK_NOISE4*4] =
+{
+
+ -776, -854, -891, -920,
+ -552, -610, -663, -741,
+ -321, -370, -476, -565,
+ 274, -160, -456, 201,
+ 265, 67, -160, -306,
+ -8, -210, 79, 272,
+ 163, 236, 307, 308,
+ 578, 317, 64, 298,
+ -9, 197, 342, 620,
+ 343, 232, 314, 622,
+ 173, 149, 548, 527,
+ 356, 370, 481, 376,
+ 135, 444, 488, 556,
+ 391, 471, 487, 653,
+ 228, 424, 576, 835,
+ 422, 372, 722, 682,
+ 295, 673, 693, 635,
+ 539, 596, 590, 449,
+ 475, 618, 659, 818,
+ 735, 517, 491, 673,
+ 602, 346, 257, 877,
+ 625, 635, 849, 720,
+ 727, 818, 698, 595,
+ 653, 481, 690, 1139,
+ 814, 762, 704, 908,
+ 507, 747, 898, 936,
+ 848, 855, 924, 785,
+ 646, 1037, 882, 795,
+ 772, 845, 1024, 1151,
+ 1133, 983, 818, 921,
+ 940, 1068, 1252, 1302,
+ 1588, 1767, 1718, 1513
+};
+
+/*
+ * 5th split: isf12 to isf15
+ */
+
+const int16 dico5_isf_noise[SIZE_BK_NOISE5*4] =
+{
+ -810, -879, -945, -254,
+ 248, 184, 671, 128,
+ 288, 703, 918, 99,
+ 658, 558, 662, 219,
+ 552, 585, 910, 208,
+ 559, 804, 759, 119,
+ 606, 774, 921, -139,
+ 782, 761, 748, 208,
+ 756, 708, 983, 56,
+ 544, 864, 1010, 152,
+ 737, 698, 987, 299,
+ 771, 924, 879, 103,
+ 536, 785, 961, 405,
+ 667, 916, 801, 328,
+ 738, 705, 773, 439,
+ 823, 871, 992, 355,
+ 640, 1004, 1052, 369,
+ 724, 822, 949, 597,
+ 415, 655, 729, 482,
+ 1009, 896, 793, 363,
+ 908, 803, 687, -25,
+ 1016, 838, 1011, 189,
+ 947, 1112, 942, 222,
+ 914, 1049, 981, 527,
+ 956, 987, 1011, -120,
+ 781, 1049, 1121, 92,
+ 1178, 1053, 884, 47,
+ 1123, 1059, 1182, 118,
+ 933, 972, 1277, 357,
+ 1109, 918, 1101, 503,
+ 1039, 1286, 1220, 317,
+ 1351, 1207, 1010, 326
+};
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: qpisf_2s.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 * seed seed for the random ng
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Coding/Decoding of ISF parameters with prediction.
+
+ The ISF vector is quantized using two-stage VQ with split-by-2
+ in 1st stage and split-by-5 (or 3)in the second stage.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+
+#include "qisf_ns.h"
+#include "qpisf_2s.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define MU 10923 /* Prediction factor (1.0/3.0) in Q15 */
+#define N_SURV_MAX 4 /* 4 survivors max */
+#define ALPHA 29491 /* 0. 9 in Q15 */
+#define ONE_ALPHA (32768-ALPHA) /* (1.0 - ALPHA) in Q15 */
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+/*-------------------------------------------------------------------*
+ * routine: Disf_2s_46b() *
+ * ~~~~~~~~~ *
+ * Decoding of ISF parameters *
+ *-------------------------------------------------------------------*/
+
+void Dpisf_2s_46b(
+ int16 * indice, /* input: quantization indices */
+ int16 * isf_q, /* output: quantized ISF in frequency domain (0..0.5) */
+ int16 * past_isfq,/* i/0 : past ISF quantizer */
+ int16 * isfold, /* input : past quantized ISF */
+ int16 * isf_buf, /* input : isf buffer */
+ int16 bfi, /* input : Bad frame indicator */
+ int16 enc_dec
+)
+{
+ int16 ref_isf[M];
+ int16 i, j, tmp;
+ int32 L_tmp;
+
+
+ if (bfi == 0) /* Good frame */
+ {
+ for (i = 0; i < 9; i++)
+ {
+ isf_q[i] = dico1_isf[(indice[0] << 3) + indice[0] + i];
+ }
+ for (i = 0; i < 7; i++)
+ {
+ isf_q[i + 9] = dico2_isf[(indice[1] << 3) - indice[1] + i];
+ }
+
+ for (i = 0; i < 3; i++)
+ {
+ isf_q[i] += dico21_isf[indice[2] * 3 + i];
+ isf_q[i + 3] += dico22_isf[indice[3] * 3 + i];
+ isf_q[i + 6] += dico23_isf[indice[4] * 3 + i];
+ isf_q[i + 9] += dico24_isf[indice[5] * 3 + i];
+ isf_q[i + 12] += dico25_isf[(indice[6] << 2) + i];
+ }
+
+ isf_q[i + 12] += dico25_isf[(indice[6] << 2) + i];
+
+ for (i = 0; i < ORDER; i++)
+ {
+ tmp = isf_q[i];
+ isf_q[i] += mean_isf[i];
+ isf_q[i] += ((int32)MU * past_isfq[i]) >> 15;
+ past_isfq[i] = tmp;
+ }
+
+
+ if (enc_dec)
+ {
+ for (i = 0; i < M; i++)
+ {
+ for (j = (L_MEANBUF - 1); j > 0; j--)
+ {
+ isf_buf[j * M + i] = isf_buf[(j - 1) * M + i];
+ }
+ isf_buf[i] = isf_q[i];
+ }
+ }
+ }
+ else
+ { /* bad frame */
+ for (i = 0; i < M; i++)
+ {
+ L_tmp = mul_16by16_to_int32(mean_isf[i], 8192);
+ for (j = 0; j < L_MEANBUF; j++)
+ {
+ L_tmp = mac_16by16_to_int32(L_tmp, isf_buf[j * M + i], 8192);
+ }
+ ref_isf[i] = amr_wb_round(L_tmp);
+ }
+
+ /* use the past ISFs slightly shifted towards their mean */
+ for (i = 0; i < ORDER; i++)
+ {
+ isf_q[i] = add_int16(mult_int16(ALPHA, isfold[i]), mult_int16(ONE_ALPHA, ref_isf[i]));
+ }
+
+ /* estimate past quantized residual to be used in next frame */
+
+ for (i = 0; i < ORDER; i++)
+ {
+ tmp = add_int16(ref_isf[i], mult_int16(past_isfq[i], MU)); /* predicted ISF */
+ past_isfq[i] = sub_int16(isf_q[i], tmp);
+ past_isfq[i] >>= 1; /* past_isfq[i] *= 0.5 */
+ }
+
+ }
+
+ Reorder_isf(isf_q, ISF_GAP, ORDER);
+}
+
+/*
+ * routine: Disf_2s_36b()
+ * ~~~~~~~~~
+ * Decoding of ISF parameters
+ */
+
+void Dpisf_2s_36b(
+ int16 * indice, /* input: quantization indices */
+ int16 * isf_q, /* output: quantized ISF in frequency domain (0..0.5) */
+ int16 * past_isfq, /* i/0 : past ISF quantizer */
+ int16 * isfold, /* input : past quantized ISF */
+ int16 * isf_buf, /* input : isf buffer */
+ int16 bfi, /* input : Bad frame indicator */
+ int16 enc_dec
+)
+{
+ int16 ref_isf[M];
+ int16 i, j, tmp;
+ int32 L_tmp;
+
+
+ if (bfi == 0) /* Good frame */
+ {
+ for (i = 0; i < 9; i++)
+ {
+ isf_q[i] = dico1_isf[indice[0] * 9 + i];
+ }
+ for (i = 0; i < 7; i++)
+ {
+ isf_q[i + 9] = add_int16(dico2_isf[indice[1] * 7 + i], dico23_isf_36b[indice[4] * 7 + i]);
+ }
+
+ for (i = 0; i < 5; i++)
+ {
+ isf_q[i] = add_int16(isf_q[i], dico21_isf_36b[indice[2] * 5 + i]);
+ }
+ for (i = 0; i < 4; i++)
+ {
+ isf_q[i + 5] = add_int16(isf_q[i + 5], dico22_isf_36b[(indice[3] << 2) + i]);
+ }
+
+ for (i = 0; i < ORDER; i++)
+ {
+ tmp = isf_q[i];
+ isf_q[i] = add_int16(tmp, mean_isf[i]);
+ isf_q[i] = add_int16(isf_q[i], mult_int16(MU, past_isfq[i]));
+ past_isfq[i] = tmp;
+ }
+
+
+ if (enc_dec)
+ {
+ for (i = 0; i < M; i++)
+ {
+ for (j = (L_MEANBUF - 1); j > 0; j--)
+ {
+ isf_buf[j * M + i] = isf_buf[(j - 1) * M + i];
+ }
+ isf_buf[i] = isf_q[i];
+ }
+ }
+ }
+ else
+ { /* bad frame */
+ for (i = 0; i < M; i++)
+ {
+ L_tmp = mul_16by16_to_int32(mean_isf[i], 8192);
+ for (j = 0; j < L_MEANBUF; j++)
+ {
+ L_tmp = mac_16by16_to_int32(L_tmp, isf_buf[j * M + i], 8192);
+ }
+
+ ref_isf[i] = amr_wb_round(L_tmp);
+ }
+
+ /* use the past ISFs slightly shifted towards their mean */
+ for (i = 0; i < ORDER; i++)
+ {
+ isf_q[i] = add_int16(mult_int16(ALPHA, isfold[i]), mult_int16(ONE_ALPHA, ref_isf[i]));
+ }
+
+ /* estimate past quantized residual to be used in next frame */
+
+ for (i = 0; i < ORDER; i++)
+ {
+ tmp = add_int16(ref_isf[i], mult_int16(past_isfq[i], MU)); /* predicted ISF */
+ past_isfq[i] = sub_int16(isf_q[i], tmp);
+ past_isfq[i] >>= 1; /* past_isfq[i] *= 0.5 */
+ }
+ }
+
+ Reorder_isf(isf_q, ISF_GAP, ORDER);
+
+ return;
+}
+
+/*
+ * procedure Reorder_isf()
+ * ~~~~~~~~~~~~~
+ * To make sure that the isfs are properly order and to keep a certain
+ * minimum distance between consecutive isfs.
+ *
+ * Argument description in/out
+ * ~~~~~~~~ ~~~~~~~~~~~ ~~~~~~
+ * isf[] vector of isfs i/o
+ * min_dist minimum required distance i
+ * n LPC order i
+ */
+
+void Reorder_isf(
+ int16 * isf, /* (i/o) Q15: ISF in the frequency domain (0..0.5) */
+ int16 min_dist, /* (i) Q15 : minimum distance to keep */
+ int16 n /* (i) : number of ISF */
+)
+{
+ int16 i, isf_min;
+
+ isf_min = min_dist;
+
+ for (i = 0; i < n - 1; i++)
+ {
+ if (isf[i] < isf_min)
+ {
+ isf[i] = isf_min;
+ }
+ isf_min = add_int16(isf[i], min_dist);
+ }
+
+ return;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./cpp/include/qpisf_2s.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef QPISF_2S_H
+#define QPISF_2S_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "qisf_ns.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+----------------------------------------------------------------------------*/
+
+#define N_SURV 4
+
+#define SIZE_BK1 256
+#define SIZE_BK2 256
+#define SIZE_BK21 64
+#define SIZE_BK22 128
+#define SIZE_BK23 128
+#define SIZE_BK24 32
+#define SIZE_BK25 32
+
+#define SIZE_BK21_36b 128
+#define SIZE_BK22_36b 128
+#define SIZE_BK23_36b 64
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+----------------------------------------------------------------------------*/
+extern const int16 mean_isf[ORDER];
+extern const int16 dico1_isf[SIZE_BK1*9];
+extern const int16 dico2_isf[SIZE_BK2*7];
+extern const int16 dico21_isf[SIZE_BK21*3];
+extern const int16 dico22_isf[SIZE_BK22*3];
+extern const int16 dico23_isf[SIZE_BK23*3];
+extern const int16 dico24_isf[SIZE_BK24*3];
+extern const int16 dico25_isf[SIZE_BK25*4];
+extern const int16 dico21_isf_36b[SIZE_BK21_36b*5];
+extern const int16 dico22_isf_36b[SIZE_BK22_36b*4];
+extern const int16 dico23_isf_36b[SIZE_BK23_36b*7];
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
+
+#endif /* QPISF_2S_H */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*-------------------------------------------------------------------*
+ * qpisf_2s_tab.cpp
+ *-------------------------------------------------------------------*
+ * Quantization tables for two-stage of ISFs (split by 2 in 1st stage)
+ * Version whith prediction MU = 0.25
+ *-------------------------------------------------------------------*/
+
+#include "qisf_ns.h"
+#include "qpisf_2s.h"
+
+
+
+
+/* means of ISFs */
+const int16 mean_isf[ORDER] =
+{
+
+ 738, 1326, 2336, 3578, 4596, 5662, 6711, 7730,
+ 8750, 9753, 10705, 11728, 12833, 13971, 15043, 4037
+};
+
+/* 46 bits */
+/*
+ * isf codebooks: two-stage VQ with split-by-5 in 2nd stage
+ *
+ * codebook vector dimension number of vectors
+ * ~~~~~~~~ ~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~
+ * 1_1 9 256
+ * 1_2 7 256
+ * 2_1 3 64
+ * 2_2 3 128
+ * 2_3 3 128
+ * 2_4 3 32
+ * 2_5 4 32
+ */
+
+/*
+ * 1st stage codebook; 1st split: isf0 to isf8
+ */
+
+const int16 dico1_isf[SIZE_BK1*9] =
+{
+
+ 579, 1081, 1035, 390, 3, -263, -198, -82, 38,
+ 18, -68, -12, 313, 761, 405, 249, 111, -76,
+ 740, 1263, 1292, 1006, 997, 1019, 1017, 976, 923,
+ -91, 827, 948, 648, 613, 535, 522, 490, 421,
+ 41, -44, -281, -472, 652, 534, 193, 135, -90,
+ 41, -121, -356, -60, 663, 307, 61, -48, -344,
+ 557, 946, 1049, 867, 846, 990, 1112, 1262, 1241,
+ -118, -204, 328, 512, 870, 793, 610, 402, 186,
+ 156, 293, 74, -338, -475, -897, -594, -161, -497,
+ 226, 131, -138, 307, 169, -271, -164, -387, -624,
+ 62, -32, -61, -252, -541, -828, -1027, -523, -662,
+ 102, -61, 141, 112, -270, -251, -541, 25, -150,
+ 6, -132, -356, -686, -96, -322, -522, -31, -326,
+ -36, -209, -521, -229, 307, -132, -5, -99, -384,
+ 60, -51, -237, -668, -973, -407, -708, -75, -172,
+ 26, -138, -266, 111, -302, 43, -278, -356, -359,
+ 570, 822, 496, -154, -312, -92, 137, 279, 371,
+ -146, 368, 409, 68, 6, 77, 167, 202, 162,
+ 633, 898, 996, 756, 662, 683, 783, 909, 996,
+ -103, 294, 607, 415, 483, 462, 480, 431, 408,
+ -120, -338, -612, -524, 584, 331, 92, 433, 276,
+ -178, -293, -154, -41, 269, 100, -9, 213, 160,
+ 830, 736, 278, 820, 1254, 686, 712, 1039, 473,
+ -218, -304, 463, 454, 397, 273, 202, 286, 273,
+ -232, 7, 6, -388, -472, -427, -378, -167, -100,
+ -294, -183, 134, -47, 101, -88, -84, -117, -3,
+ 57, 17, -202, -634, -989, -1119, -533, 176, -36,
+ 120, -28, 23, 111, -319, 318, -22, -77, 266,
+ -271, -464, -434, -658, -640, -385, -385, -99, -69,
+ -198, -259, -266, -44, -39, -139, -137, 171, 66,
+ 9, -145, -377, -846, -1000, -111, -325, 342, 135,
+ -81, -286, -380, 192, -57, 307, 76, -24, -140,
+ 677, 702, 247, 56, 249, 141, -105, -236, -99,
+ 36, -39, -69, 348, 198, -93, 322, 91, -72,
+ 503, 885, 1508, 1307, 1282, 1172, 1119, 1209, 1061,
+ 416, 719, 989, 1227, 1001, 1052, 954, 741, 1044,
+ -127, -376, -657, 139, 623, 223, 501, 306, 220,
+ -113, -384, -796, 504, 438, 85, 213, -83, -194,
+ 585, 1132, 1233, 1091, 1247, 1433, 1512, 1448, 1314,
+ -174, -422, 7, 1155, 1089, 1182, 1003, 945, 806,
+ 8, -126, -317, -103, -351, -695, -98, -268, -537,
+ 33, -103, -290, 167, -39, -407, 44, -208, -375,
+ 104, -23, -64, -291, -637, -851, -1084, -61, -112,
+ -75, -306, -434, 218, -148, -354, -680, -133, -216,
+ -121, -377, -718, -97, -130, -361, -156, -379, -599,
+ -56, -254, -586, 235, 157, -214, 11, -260, -149,
+ -124, -267, -397, -580, -593, -527, -805, -385, 346,
+ -193, -440, -708, -351, -141, -255, -499, -147, -185,
+ 448, 660, 494, 208, 509, 461, 338, 291, 149,
+ -223, 88, 335, 159, 212, 191, 286, 308, 205,
+ -31, 469, 803, 659, 619, 658, 843, 987, 1113,
+ -171, -242, 514, 362, 295, 524, 552, 694, 585,
+ -64, -308, -448, -21, 284, 786, 446, 289, 92,
+ -218, -390, -7, 169, 206, 330, 352, 408, 358,
+ -36, 702, 959, 859, 861, 1115, 1269, 1357, 1305,
+ -133, -341, -65, 678, 417, 440, 486, 518, 780,
+ 33, -44, -191, -344, -461, -755, -201, 217, -31,
+ -353, -547, -44, 123, -61, -68, -79, 29, 60,
+ 73, -57, -406, -766, -1243, -1203, 240, 400, 165,
+ -73, -282, -601, -213, -171, -375, 332, 35, -103,
+ -29, -207, -553, -476, -638, -908, 172, -22, -135,
+ -192, -239, -164, -103, -111, -47, 153, 125, 110,
+ -1, -203, -570, -1030, -1424, -535, 155, 1, 147,
+ -333, -653, -865, -197, -158, -21, -44, 95, 108,
+ 389, 588, 490, 33, -237, -524, -628, -136, -260,
+ 40, -177, -462, 453, 862, 380, 131, -130, -405,
+ 842, 1678, 1841, 1549, 1474, 1256, 1082, 905, 742,
+ 370, 1216, 1768, 1633, 1212, 636, 22, -330, 71,
+ -76, -281, -741, -742, 898, 619, 277, 71, -222,
+ -32, -265, -556, -25, 994, 682, 305, 126, -165,
+ 73, 738, 893, 968, 993, 1768, 2273, 1840, 1391,
+ -69, -349, -585, 234, 1158, 903, 626, 510, 251,
+ -1, -99, -272, -210, -603, -351, -540, -811, -383,
+ -16, -230, -504, 410, 149, -205, -343, -651, -639,
+ 103, -9, -227, -205, -562, -781, -1079, -1208, -156,
+ 143, 63, -135, -67, -317, -602, -784, -1154, -640,
+ -144, -391, -674, -622, -200, -254, -660, -947, -395,
+ -40, -250, -625, 27, 543, 94, -131, -386, -673,
+ -123, -371, -757, -451, -564, -614, -415, -711, -35,
+ -116, -309, -593, -268, 239, -33, -338, -650, -135,
+ 94, 251, 554, 57, -312, -423, -154, -57, 235,
+ -268, -71, 381, 114, -44, -87, 125, 173, 133,
+ 1513, 1714, 1238, 534, 276, 315, 461, 459, 508,
+ -131, -19, 1149, 670, 486, 356, 309, 369, 296,
+ -223, -501, -899, -722, -70, 6, 131, 310, 394,
+ -99, -303, -517, 249, 64, -53, 135, -11, 453,
+ -147, -399, -730, -401, 817, 738, 802, 749, 575,
+ -154, -435, -739, 800, 593, 366, 529, 318, 326,
+ -224, 45, -39, -387, -515, -518, -608, -384, -321,
+ -315, -377, 143, -101, -113, -377, -177, -144, -12,
+ 117, 40, -239, -651, -1051, -581, -737, -990, -328,
+ 26, -50, -157, -23, -453, -283, -531, -546, 192,
+ -252, -501, -743, -589, -627, -499, -328, -118, -72,
+ -324, -494, -244, -306, -144, -177, -262, -135, -78,
+ -36, -234, -519, -961, -1290, -314, -479, -371, -45,
+ -95, -292, -535, -8, -300, 112, -164, -277, 198,
+ -99, -128, 880, 836, 579, 351, 23, -95, -217,
+ -27, -258, 124, 1011, 597, 425, 144, 7, -73,
+ 421, 1293, 1640, 1623, 1742, 1617, 1499, 1284, 1006,
+ -95, 752, 1680, 1569, 1618, 1436, 1200, 980, 712,
+ -69, -300, -683, -435, 1132, 899, 504, 332, 109,
+ -74, -323, -637, 563, 1074, 608, 371, 105, -49,
+ -78, 831, 1194, 1110, 1378, 1481, 1492, 1365, 1217,
+ -259, -121, 1440, 1334, 1628, 1490, 1438, 1223, 933,
+ -82, -306, -613, -222, -378, -675, -545, -671, -845,
+ 53, -124, -347, 422, 52, -125, -270, -529, 9,
+ 79, -89, -320, -662, -999, -1199, -1243, -676, -297,
+ -68, -273, -611, 137, -146, -397, -627, -845, -220,
+ -112, -346, -797, -826, 234, -132, -188, -278, -522,
+ -159, -405, -734, -419, 293, 74, -167, -167, 184,
+ -153, -437, -833, -1080, -336, -472, -561, -340, -253,
+ -169, -423, -820, -904, -131, -19, -346, -604, 31,
+ 33, -31, 312, 62, -148, 49, -59, 564, 486,
+ -306, -333, 194, -44, 67, 72, 147, 205, 243,
+ -207, -49, 1360, 983, 969, 991, 1014, 1110, 973,
+ -211, -172, 883, 627, 711, 674, 705, 798, 746,
+ -88, -325, -763, -974, 687, 908, 514, 382, 172,
+ -292, -612, -805, 63, 131, 270, 259, 352, 348,
+ -235, -84, 955, 818, 1120, 1289, 1559, 1480, 1285,
+ -180, -461, -614, 657, 691, 745, 854, 783, 713,
+ -97, -309, -477, -614, -777, -734, -768, -526, -472,
+ -344, -476, -35, -169, 49, -77, -150, -240, -141,
+ -52, -268, -639, -919, -1278, -1113, -342, -333, -151,
+ -68, -242, -585, -73, -209, -478, -159, -429, 133,
+ -197, -499, -1005, -1268, -272, -224, -105, -67, 17,
+ -363, -618, -414, -116, -62, 20, 10, 116, 108,
+ -195, -475, -906, -1260, -891, -441, -277, -142, -28,
+ -226, -519, -950, -700, -275, -266, -116, -105, 82,
+ 404, 511, 520, 327, 17, -194, -333, -536, -586,
+ -114, -130, 276, 237, 204, 342, 135, -16, -111,
+ 670, 1208, 1168, 860, 742, 601, 528, 403, 309,
+ 397, 621, 966, 752, 579, 398, 400, 329, 252,
+ 191, 180, -137, -467, 272, 106, -95, 17, -192,
+ -80, -290, -626, 194, 598, 196, 21, -281, 77,
+ 510, 864, 1108, 807, 939, 902, 925, 717, 481,
+ 137, 367, 534, 764, 670, 382, 296, 153, 84,
+ 303, 497, 144, -85, -125, -539, -482, -464, -764,
+ 233, 347, 68, -147, 169, -210, -242, -226, -482,
+ 307, 422, 154, -175, -386, -722, -724, -904, -1015,
+ 309, 308, 160, -60, -470, -420, -598, -791, -219,
+ 68, 121, -137, -560, -146, -446, -515, -494, -729,
+ 130, 53, -227, 46, 474, 32, -161, -192, -490,
+ 213, 164, -71, -465, -876, -161, -456, -587, -48,
+ 218, 117, 39, 177, -194, -88, -226, -418, 50,
+ 210, 547, 569, 279, 121, -44, -50, 10, -84,
+ 58, 140, 182, -5, 267, 117, 106, 211, 198,
+ 539, 835, 913, 719, 617, 544, 591, 565, 642,
+ 153, 559, 872, 460, 222, 108, 188, 180, 183,
+ 158, 119, 284, -153, -271, 229, 87, 110, -57,
+ -183, 82, 118, 21, 13, 40, 118, 191, 185,
+ 162, 889, 654, 108, -34, 244, 488, 561, 532,
+ 163, 56, 609, 341, 50, 329, 68, 266, 218,
+ 100, 206, 18, -304, -107, -436, -487, -65, -306,
+ -86, 154, 134, -30, -45, -73, -104, -80, -96,
+ 245, 330, 10, -440, -849, -1082, 79, 40, -265,
+ 196, 372, 272, -181, -493, -389, 275, 80, -59,
+ 2, -12, -246, -505, -100, -436, 21, -187, -431,
+ -221, -48, 36, -271, -186, -147, -109, 26, 71,
+ 213, 140, 72, -351, -620, -84, -363, 69, 46,
+ 91, 167, -3, -95, -99, -105, -48, 114, 147,
+ 259, 249, 172, 607, 406, 52, 59, -189, -320,
+ 115, -85, -54, 574, 128, 226, -59, -253, 130,
+ -62, 1033, 1308, 1035, 1127, 1098, 1029, 961, 823,
+ 39, 364, 757, 940, 728, 660, 659, 583, 770,
+ -115, -338, -760, -471, 394, 37, 441, 178, 6,
+ -57, -305, -525, 796, 453, 188, -4, -114, 248,
+ 71, 444, 797, 731, 1096, 1157, 1222, 1029, 811,
+ 135, 359, 551, 425, 749, 815, 874, 704, 502,
+ 132, 247, 0, -206, -449, -750, -258, -514, -633,
+ 248, 249, 91, 121, -195, -499, -90, -282, -435,
+ 78, 20, -277, -623, -983, -1224, -415, -458, -639,
+ 347, 509, 208, -179, -464, -728, -76, -237, -486,
+ -103, -343, -756, -713, -265, -609, -191, -398, -636,
+ -121, -383, -749, 567, 252, -36, -354, -417, -50,
+ 204, 100, -149, -650, -1081, -47, -7, -263, 111,
+ -46, -180, -267, -324, -562, -394, -692, 398, 292,
+ 482, 670, 683, 624, 442, 165, 116, 36, -149,
+ 108, 247, 291, 247, 355, 122, 109, 224, 296,
+ -14, 945, 990, 801, 755, 815, 847, 913, 892,
+ 292, 349, 725, 482, 388, 329, 429, 620, 667,
+ -34, 197, 213, -127, 84, 494, 620, 575, 375,
+ 126, 207, 172, 167, 362, 202, 296, 395, 455,
+ -6, 250, 539, 467, 636, 801, 1149, 1287, 1118,
+ 27, 240, 369, 280, 440, 411, 634, 892, 953,
+ 159, 170, -58, -395, -797, -690, 77, -211, -334,
+ -5, -28, -13, -74, -335, -603, 300, 88, -205,
+ 82, -33, -364, -698, -1203, -1153, 110, -146, -289,
+ 113, 1, -243, -588, -994, -496, 414, 160, 42,
+ -56, -247, -440, -693, -996, -479, 11, -178, -357,
+ -151, -353, -327, -211, -340, 141, 65, 425, 453,
+ 34, -169, -455, -932, -1215, 138, 499, 256, 324,
+ 68, 139, -15, -547, -478, 17, 306, 502, 481,
+ -32, -134, 445, 129, -143, -244, -503, -507, -599,
+ 61, -140, -345, 496, 458, -2, 20, -227, -514,
+ 394, 1765, 1666, 1339, 1117, 806, 642, 479, 380,
+ 215, 519, 920, 1053, 1090, 791, 528, 290, 155,
+ -54, -233, -647, -602, 639, 294, -2, -167, -442,
+ -78, -315, -791, -113, 820, 403, 158, -116, -356,
+ 529, 1851, 2003, 1228, 622, -41, -416, 344, 819,
+ -105, -379, -236, 1224, 893, 749, 568, 356, 214,
+ -17, -199, -144, 50, -283, -247, -578, -846, -1087,
+ 69, -11, -381, -206, 209, -284, -387, -416, -716,
+ 39, -5, -145, -374, -682, -909, -1074, -1169, -1066,
+ 287, 226, 67, -221, -662, -171, -421, -642, -707,
+ -132, -348, -538, -448, -20, -4, -354, -748, -933,
+ 4, -75, -289, -598, 317, 52, -208, -297, -559,
+ -88, -264, -358, -589, -631, -248, -523, -822, -1071,
+ 70, -8, 54, -314, -515, 92, -146, -274, -493,
+ 199, 62, 391, 158, -141, 71, -219, -203, -207,
+ 152, 40, 329, 162, -29, 48, -149, 108, 127,
+ 635, 1058, 883, 492, 372, 312, 317, 274, 241,
+ 267, 722, 1256, 882, 625, 248, 8, -81, -60,
+ -58, -138, -291, -600, -12, -2, -39, 147, 117,
+ -107, -345, -513, 459, 76, 92, -272, 388, 262,
+ 362, 516, 203, -409, -716, -831, -331, 185, 209,
+ -117, -391, -298, 671, 292, 538, 257, 166, -38,
+ -102, -319, -194, -283, -573, -262, -579, -219, -444,
+ -235, 78, 11, -168, -101, -229, -263, -321, -123,
+ 70, 50, -170, -599, -996, -588, -263, -516, -455,
+ 394, 363, 229, -136, -538, 21, -183, -348, -201,
+ -124, -368, -640, -879, -847, -209, -409, -494, -515,
+ -127, -341, -541, -425, -510, -10, -252, -473, -291,
+ 84, -69, -201, -676, -868, 103, -311, -132, -320,
+ 5, -173, -188, -297, -628, 197, -57, 7, -11,
+ 49, -160, 56, 558, 111, 33, -311, -440, -463,
+ -1, -246, -307, 862, 453, 139, -170, -355, -232,
+ 279, 966, 1642, 1478, 1463, 1123, 795, 525, 339,
+ -197, -38, 1702, 1331, 1252, 950, 692, 504, 426,
+ -108, -344, -861, -1172, 444, 354, 88, -46, -220,
+ -53, -321, -494, 1113, 744, 364, 198, -34, -75,
+ 457, 955, 1177, 1214, 1427, 1457, 1345, 917, 539,
+ -69, 199, 897, 1140, 1343, 1183, 977, 742, 522,
+ 122, 44, -269, 27, -155, -562, -307, -590, -773,
+ 154, 42, -160, 252, -129, -305, -471, -733, -371,
+ 135, 185, -82, -416, -722, -913, -504, -743, -880,
+ 149, 214, -84, -329, -680, -835, -426, -661, -81,
+ -128, -380, -735, -998, -337, 17, -182, -467, -697,
+ -84, -290, -510, -592, 13, 440, 154, -38, -279,
+ 70, -61, -246, -727, -1047, -80, -381, -535, -704,
+ 178, -2, -146, -670, -938, 482, 138, 63, 65,
+ -11, 15, 772, 443, 142, -20, -209, -126, -161,
+ -32, -249, 95, 552, 124, 30, -343, 82, -86,
+ 148, 751, 1515, 1105, 867, 606, 474, 448, 399,
+ -163, -257, 899, 1097, 906, 751, 502, 390, 294,
+ -51, -258, -447, -806, -368, 763, 464, 364, 183,
+ -166, -374, -367, 87, 35, 399, 418, 856, 833,
+ -205, -310, 588, 778, 785, 1065, 1118, 1245, 1157,
+ -173, -312, 107, 345, 400, 790, 870, 1113, 1001,
+ -7, -120, -387, -410, -614, -943, -226, -384, -491,
+ -203, -288, -51, -331, -90, -178, -408, -573, -338,
+ 56, -29, -273, -627, -1041, -798, -247, -467, 148,
+ 66, -2, -205, -205, -575, -349, -57, -352, -58,
+ -45, -225, -471, -924, -497, 77, -32, 44, -135,
+ -277, -491, -497, -502, -424, -202, -137, 77, 96,
+ 26, -179, -469, -1008, -1260, 262, -35, -132, -259,
+ -66, -232, -447, -533, -789, -191, -100, -267, 364
+};
+
+/*------------------------------------------------*
+ * 1st stage codebook; 2nd split: isf9 to isf15
+ *------------------------------------------------*/
+
+const int16 dico2_isf[SIZE_BK2*7] =
+{
+
+ 1357, 1313, 1136, 784, 438, 181, 145,
+ 636, 648, 667, 568, 442, 217, 362,
+ 427, 440, 674, 524, 332, 117, -417,
+ 121, 295, 468, 465, 230, 44, -221,
+ -147, -240, 149, 80, 390, 278, 106,
+ -418, -556, 552, 511, 235, 144, -95,
+ 43, 193, 274, 150, 67, 34, -273,
+ -43, -126, 171, 416, 282, 63, -354,
+ -372, -86, -344, -108, -94, -182, -89,
+ -600, -840, -200, 465, 258, -11, -253,
+ -48, 329, 97, -290, -543, -795, -354,
+ -570, -117, 187, 10, -133, -416, -76,
+ -618, -129, -247, -371, 45, -76, 277,
+ -1022, -1079, 126, 474, 254, 127, 52,
+ -281, 76, -167, -361, -283, -551, -283,
+ -119, -52, -1, 134, -32, -204, -415,
+ 1064, 827, 637, 684, 464, 209, 12,
+ 482, 416, 449, 371, 335, 294, 194,
+ 719, 576, 365, 135, 113, 91, -199,
+ 298, 176, 493, 366, 194, 163, 36,
+ -35, -236, -259, -36, -4, 99, 152,
+ -98, -306, -27, 228, 90, 111, -86,
+ 91, 13, -211, -258, -106, 86, -64,
+ 73, -35, -57, -31, 162, 35, -192,
+ -109, -335, -629, -66, -61, -128, 322,
+ -495, -669, -728, 193, 31, -220, 122,
+ 324, 95, -89, -91, -409, -710, -154,
+ 0, -234, 92, 33, -343, -609, -220,
+ -343, -408, -476, -655, -153, 82, 222,
+ -490, -745, -255, 49, -48, 135, -127,
+ 119, -67, -328, -390, -272, -545, -56,
+ -57, -130, -10, -7, -164, -47, -22,
+ 984, 1064, 961, 568, 210, -27, 16,
+ 811, 691, 754, 514, 224, -35, 166,
+ 662, 704, 618, 386, 57, -211, -257,
+ 510, 359, 418, 393, 91, -144, -18,
+ -193, -31, -27, 223, 89, -143, 24,
+ -112, -98, 471, 319, 185, 3, 175,
+ 252, 146, -47, 272, 48, -211, -234,
+ 146, 69, 203, 364, 68, -52, 51,
+ -259, -478, -697, -349, -758, -501, 63,
+ -501, -769, -289, 79, -311, -497, -106,
+ 251, 53, -235, -469, -895, -884, 145,
+ -416, -551, 140, -133, -523, -775, 44,
+ -326, -423, -713, -497, -86, -431, 99,
+ -757, -772, -160, -76, -46, -32, 379,
+ 85, -35, -200, -401, -663, -1040, -247,
+ -180, -330, -92, -376, 27, -183, -110,
+ 1279, 1086, 781, 502, 324, 164, 157,
+ 682, 466, 449, 277, 146, 28, 409,
+ 635, 472, 390, 107, -232, -538, -139,
+ 196, 396, 332, 213, 209, -29, -81,
+ 150, -95, -312, 76, -77, -320, -50,
+ 46, 9, 47, 175, 139, 30, 384,
+ 218, 206, -24, -250, -96, -276, -183,
+ 26, 119, 38, 14, -4, -133, -52,
+ -477, -614, -987, -715, -631, -813, 200,
+ -744, -1009, -1065, -745, -631, -171, 18,
+ -137, -251, -483, -613, -980, -1203, 12,
+ -605, -767, -562, -686, -1088, -515, 58,
+ -202, -428, -782, -1072, -96, -234, -179,
+ -480, -709, -1070, -897, -131, -92, 321,
+ -145, -193, -512, -729, -572, -765, -210,
+ -331, -585, -525, -631, -281, -208, -303,
+ 1165, 1104, 939, 828, 716, 426, 155,
+ 6, -109, 820, 778, 415, 113, -27,
+ 381, 339, 314, 265, 121, -9, -474,
+ -373, 47, 584, 442, 99, -231, -113,
+ -496, -38, -285, 262, 305, 170, 4,
+ -587, -556, 69, 66, 471, 354, 13,
+ -138, 70, -18, 106, 67, 167, -302,
+ -445, -141, 185, 191, 151, 83, -133,
+ -257, -521, -720, -198, 134, -46, -182,
+ -819, -1168, -777, 512, 359, 95, -113,
+ 137, -2, -74, -138, -401, -114, -371,
+ -242, -466, 204, 223, -31, -212, -192,
+ -532, -637, -466, -686, 256, 277, -139,
+ -1141, -1244, -381, -75, -54, 14, 88,
+ -311, 115, -143, -499, -343, 124, -416,
+ -616, -147, -135, 43, -4, 121, -369,
+ 835, 783, 641, 390, 355, 350, 64,
+ 72, 194, 443, 467, 436, 219, 372,
+ 464, 369, 192, 4, -156, -72, -226,
+ 57, 206, 303, 205, 188, 101, 265,
+ -40, -205, -488, -184, 276, 64, -26,
+ -217, -433, -297, 137, 328, 308, -289,
+ 378, 81, -308, -465, 57, -37, 227,
+ -100, 24, -36, -151, 199, 8, 143,
+ -426, -697, -1059, -133, 388, 161, 321,
+ -644, -1023, -1271, 39, 66, -123, 70,
+ 372, 177, -173, -556, -553, -304, -189,
+ -117, -369, -425, -122, -462, -152, -73,
+ -649, -850, -1189, -767, 497, 360, 222,
+ -798, -1139, -1455, -190, 430, 234, 179,
+ 42, -94, -405, -692, 38, -202, -246,
+ -169, -366, -290, -88, -64, 32, -292,
+ 1010, 923, 938, 710, 465, 230, 342,
+ 217, 300, 1054, 675, 68, -458, -179,
+ 78, 453, 316, 18, -237, -496, -243,
+ 167, 21, 424, 215, -91, -303, -170,
+ -290, -81, -70, -67, 40, 54, -59,
+ -353, -427, -90, 53, 94, 9, 54,
+ -28, 318, 283, 15, -240, -58, 79,
+ -75, -121, 229, 35, 58, 6, -133,
+ -351, -514, -744, -834, -705, -137, 164,
+ -1124, -1388, -1055, -230, -73, 40, 36,
+ -163, -233, -532, -785, -1170, -697, 96,
+ -788, -959, -246, -430, -624, -165, -8,
+ -856, -540, -630, -907, -337, -70, 76,
+ -937, -1042, -659, -733, -208, 199, -26,
+ -523, 78, -98, -501, -869, -890, -81,
+ -624, -703, -45, -348, -25, 87, -186,
+ 1005, 823, 546, 249, 90, -22, 207,
+ 298, 397, 381, 319, 200, 62, 303,
+ 473, 379, 133, -247, -632, -441, 75,
+ 284, 208, 391, 115, -25, 44, 95,
+ -72, 79, -95, -63, -129, -293, 203,
+ -164, -349, 115, 122, 69, -1, 378,
+ 348, 170, 99, 58, -179, -302, 188,
+ -190, -2, 150, 23, -51, -11, 216,
+ -615, -863, -1090, -1427, -802, -48, -6,
+ -961, -1276, -1548, -727, -58, 56, 223,
+ -124, -255, -561, -988, -1277, -148, -82,
+ -480, -660, -891, -1191, -1339, -325, 20,
+ -621, -917, -1296, -1350, 264, 289, 50,
+ -844, -1022, -1345, -1329, -293, 46, 278,
+ -260, -468, -829, -1176, -533, -560, -78,
+ -215, -484, -822, -1233, -791, 15, -138,
+ 1301, 1317, 1262, 1048, 716, 357, -64,
+ 578, 824, 925, 802, 630, 362, 102,
+ 470, 925, 767, 514, 327, 190, -112,
+ 225, 492, 495, 437, 598, 384, -45,
+ 43, 82, -42, 175, 519, 342, -64,
+ -304, -154, 159, 576, 403, 221, 327,
+ 214, 244, 122, -62, 312, 92, -160,
+ 218, 208, 310, 268, 306, 323, -199,
+ -285, -269, -79, -124, -143, -153, 236,
+ -205, -384, -426, 344, 59, -185, -184,
+ -272, 247, 126, -210, -518, -468, 78,
+ -99, -120, 502, 160, -280, -557, 304,
+ -423, -17, -283, -443, 215, 212, -140,
+ -564, -684, -228, 510, 361, 130, 323,
+ -428, 335, 98, -65, 36, -215, -246,
+ -362, 51, 364, -16, -234, 150, -165,
+ 914, 883, 751, 653, 676, 464, -153,
+ 631, 545, 535, 720, 596, 360, -81,
+ 783, 712, 512, 439, 341, 251, -391,
+ 497, 417, 249, 372, 295, 173, -193,
+ 128, -110, -385, 93, 39, 173, -231,
+ 216, -59, -253, 462, 389, 154, 69,
+ 455, 270, -4, -337, -49, 233, -322,
+ 307, 143, 53, 218, 128, 236, -156,
+ -37, -186, -240, -411, -110, 9, 399,
+ -140, -365, -628, 258, 380, 214, 277,
+ 131, 454, 177, -285, -520, 108, -214,
+ 77, -141, 201, -123, -490, -131, 60,
+ -14, -194, -521, -741, 273, 362, -33,
+ -362, -566, -287, -228, 161, 237, 317,
+ -269, 195, -75, -375, -204, 11, 77,
+ -128, -264, -156, -223, -475, 265, 27,
+ 1238, 1147, 916, 689, 432, 210, -280,
+ 800, 664, 879, 726, 411, 160, -164,
+ 454, 686, 536, 275, 147, 46, 111,
+ 303, 486, 512, 355, 241, 181, -69,
+ 79, 92, 29, 147, 233, 52, 17,
+ -171, 289, 131, 439, 271, 3, -10,
+ 413, 241, 144, 174, 155, -2, 14,
+ 58, 217, 247, 219, 149, 175, -18,
+ 228, -8, -240, -206, -513, -191, 202,
+ -96, -272, -454, 33, -300, -575, 46,
+ -10, -108, -246, -347, -770, -535, 9,
+ -326, -430, -61, -321, -704, -299, 201,
+ -1, -280, -603, -419, -185, 18, -36,
+ -516, -522, -379, -291, -181, -97, 27,
+ -159, -313, -525, -224, -510, -831, -197,
+ -292, -459, -59, -310, -562, -143, -351,
+ 1066, 912, 631, 389, 207, 86, -224,
+ 596, 512, 596, 505, 314, 122, -48,
+ 787, 861, 441, -93, -303, 33, -190,
+ 257, 469, 337, 51, 15, 298, -93,
+ 295, 73, -119, 25, 36, 23, 108,
+ -28, -3, -32, 114, 21, 185, 107,
+ 482, 305, 15, -279, -319, 52, 96,
+ 226, 46, 115, 72, -136, 133, -125,
+ 18, -207, -559, -590, -503, -482, 321,
+ -571, -789, -951, -172, -441, -538, 113,
+ 181, 14, -310, -641, -1001, -202, 159,
+ -136, -393, -433, -513, -911, -144, -22,
+ 72, -265, -706, -954, -159, 53, 332,
+ -338, -591, -852, -383, -395, 56, 44,
+ 43, -158, -464, -897, -631, -157, -294,
+ -161, -128, -328, -573, -483, -125, 11,
+ 1017, 906, 1051, 1005, 679, 341, -102,
+ 359, 334, 1567, 1314, 723, 105, 10,
+ -65, 726, 529, 301, 220, 43, -273,
+ -510, 436, 719, 566, 358, 179, 114,
+ -560, 298, 133, -120, 342, 225, 14,
+ -899, -101, 217, 617, 400, 146, -58,
+ -41, 352, 82, -196, 39, 121, -167,
+ -212, 59, 447, 284, 423, 250, -169,
+ -371, -484, -596, 30, -41, 249, 22,
+ -372, -650, -794, 477, 445, 216, -79,
+ -352, 275, 17, -443, -929, 92, 19,
+ -699, -696, 431, 264, -49, -310, 182,
+ -978, -217, -430, -400, 101, 261, 72,
+ -929, -889, -357, -13, 463, 378, 236,
+ -826, 56, 30, -299, -360, -128, -51,
+ -878, -299, -111, 75, 65, 36, 3,
+ 817, 368, -25, 354, 697, 591, -173,
+ 309, 212, 222, 751, 484, 140, -56,
+ 593, 379, 70, -8, 258, 180, 110,
+ 165, -46, 255, 297, 219, 273, 105,
+ 160, -70, -358, -181, 379, 330, 319,
+ -238, -369, -198, 740, 580, 319, -143,
+ 201, 109, -202, -456, 328, 276, -141,
+ 203, 170, 111, 42, 207, 360, 188,
+ -345, -399, -513, -233, 650, 422, 81,
+ -635, -961, -1220, 463, 539, 204, 209,
+ 202, -25, -194, -498, -787, 193, -143,
+ -449, -538, 195, -106, -331, 68, 62,
+ -228, -477, -840, -576, 317, 128, 283,
+ -671, -937, -807, -114, 391, 335, -62,
+ 246, 2, -314, -679, -303, 180, -88,
+ -107, -272, 90, -198, -28, 290, -112,
+ 885, 1149, 1021, 712, 496, 281, -83,
+ 269, 492, 787, 643, 347, 70, 124,
+ 336, 636, 499, 92, -229, -179, 191,
+ 26, 402, 564, 340, 149, -11, 135,
+ -440, 561, 470, 204, -72, -186, 140,
+ -720, 14, 355, 229, 68, -133, 465,
+ 110, 310, 103, 12, 106, 29, 158,
+ -178, 113, 161, 142, 121, 115, 27,
+ -651, -414, -645, -152, -164, -13, -429,
+ -639, -944, -681, -104, -81, 52, -189,
+ -663, -164, -316, -683, -954, -205, -83,
+ -609, -669, -172, -517, -694, 283, -80,
+ -646, -152, -383, -678, -246, -40, -143,
+ -747, -796, -745, -390, -98, 43, 275,
+ -599, -199, -398, -433, -436, -538, 31,
+ -1107, -568, -376, -265, -126, -21, 1,
+ 847, 573, 308, 392, 305, 101, 55,
+ 273, 293, 201, 267, 346, 201, 123,
+ 727, 480, 226, 2, -65, -138, 164,
+ 273, 208, 173, 292, 12, 253, 174,
+ 340, 207, 180, 88, 116, 46, 475,
+ -460, -166, -30, 13, 110, 173, 396,
+ 137, 88, 43, -137, -94, 34, 284,
+ 96, -14, 226, 40, 63, 70, 130,
+ -467, -735, -1012, -1174, -307, 305, -67,
+ -612, -920, -1146, -567, -8, 92, -25,
+ -182, -271, -492, -754, -857, 287, -75,
+ -494, -787, -689, -683, -709, 137, -326,
+ -288, -550, -903, -1105, 334, 321, -62,
+ -354, -653, -834, -445, 1, 377, -152,
+ -162, -306, -608, -937, -297, 247, -192,
+ -234, -477, -244, -488, -266, 342, -332
+};
+
+/*
+ * 2nd stage codebook; 1st split: isf2_0 to isf2_2
+ */
+
+
+const int16 dico21_isf[SIZE_BK21*3] =
+{
+
+ 329, 409, 249,
+ -33, 505, 160,
+ -29, -14, 582,
+ -262, 127, 354,
+ 145, 237, 175,
+ -152, 245, 122,
+ 27, 42, 340,
+ -84, -93, 311,
+ 285, 222, -156,
+ 47, -43, -504,
+ 234, 121, 385,
+ 104, -317, 45,
+ 176, 195, 8,
+ 104, -59, -94,
+ 177, 53, 192,
+ -34, -127, 152,
+ 570, 277, -34,
+ -67, -329, -639,
+ -157, -272, 462,
+ -177, -462, 198,
+ 322, 179, 115,
+ -386, 171, 19,
+ 19, -12, 195,
+ -120, -252, 201,
+ 304, 36, -336,
+ -128, -221, -380,
+ 171, -185, 296,
+ -242, -312, 23,
+ 198, 39, 16,
+ -3, -177, -111,
+ 111, -93, 76,
+ -92, -223, 4,
+ 177, 406, -44,
+ -168, 380, -149,
+ -4, 273, 331,
+ -420, 513, 277,
+ 21, 247, 47,
+ -58, 131, -2,
+ -3, 134, 180,
+ -145, 40, 175,
+ 189, 74, -145,
+ -27, -45, -325,
+ 370, -114, -21,
+ -83, -415, -173,
+ 77, 95, -51,
+ -40, -30, -67,
+ 71, 88, 86,
+ -35, -98, 14,
+ 69, 197, -334,
+ -196, 79, -231,
+ -348, -137, 218,
+ -352, -89, -85,
+ 47, 201, -130,
+ -165, 37, -15,
+ -43, 3, 86,
+ -161, -108, 79,
+ 83, 21, -237,
+ -81, -149, -238,
+ 150, -186, -251,
+ -186, -249, -162,
+ -19, 66, -139,
+ -26, -50, -181,
+ 24, 11, 0,
+ -130, -105, -98
+};
+
+
+
+/*
+ * 2nd stage codebook; 2nd split: isf2_3 to isf2_5
+ */
+
+
+const int16 dico22_isf[SIZE_BK22*3] =
+{
+
+ -127, 310, 42,
+ -242, 197, 5,
+ -151, 84, -17,
+ -214, 127, -149,
+ -247, -131, 159,
+ -268, -267, -95,
+ -217, 1, -79,
+ -271, -80, -185,
+ -45, 436, 159,
+ 165, 199, 391,
+ -33, 81, 187,
+ -66, -42, 355,
+ -298, -57, 343,
+ -108, -537, 226,
+ -144, -23, 193,
+ 176, -402, 87,
+ 53, 296, 25,
+ -84, 253, -104,
+ -58, 105, -126,
+ -169, 174, -314,
+ -48, 44, -294,
+ -164, -417, -242,
+ -139, 3, -194,
+ -155, -207, -211,
+ 119, 322, 213,
+ 333, 50, 380,
+ 237, 247, -2,
+ 466, -16, 201,
+ 238, -255, -107,
+ 67, -440, -149,
+ 122, -88, -139,
+ 88, -247, -73,
+ -41, 231, 167,
+ -62, 155, 16,
+ -65, 16, 77,
+ -68, -2, -63,
+ -151, -300, 160,
+ -18, -333, 54,
+ -56, -94, 5,
+ 2, -190, 14,
+ 92, 148, 209,
+ 108, 9, 272,
+ 108, 35, 110,
+ 142, -85, 145,
+ 47, -157, 279,
+ 3, -320, 246,
+ 43, -72, 68,
+ 86, -217, 135,
+ 36, 140, 79,
+ 56, 175, -49,
+ 26, 45, 3,
+ 73, 55, -101,
+ 109, -183, -242,
+ -4, -283, -242,
+ 48, -68, -48,
+ -6, -153, -122,
+ 161, 196, 96,
+ 232, 80, 190,
+ 165, 97, 11,
+ 258, -31, 71,
+ 267, -77, -91,
+ 311, -209, 87,
+ 152, -14, -22,
+ 150, -149, 9,
+ -324, 557, 187,
+ -384, 307, 46,
+ -251, 27, 77,
+ -365, 77, -52,
+ -482, -84, 160,
+ -424, -515, -64,
+ -294, -120, -4,
+ -476, -116, -109,
+ -97, 318, 365,
+ 106, 627, 445,
+ -190, 120, 287,
+ -146, 65, 619,
+ -427, 242, 363,
+ -361, -371, 432,
+ -347, 102, 168,
+ -629, 195, -14,
+ -65, 476, -47,
+ -297, 320, -168,
+ -55, 356, -264,
+ -391, 82, -286,
+ -51, -31, -556,
+ -178, -399, -586,
+ -205, -49, -360,
+ -343, -238, -337,
+ 220, 457, 58,
+ 561, 467, 259,
+ 340, 270, -168,
+ 450, 77, -280,
+ 60, 167, -413,
+ 133, -252, -492,
+ 216, 157, -290,
+ 282, 0, -495,
+ -226, 293, 183,
+ -157, 135, 122,
+ -158, -59, 39,
+ -133, -118, -97,
+ -332, -309, 113,
+ -160, -425, -6,
+ -149, -211, 24,
+ -80, -277, -90,
+ -11, 125, 338,
+ 130, -71, 465,
+ 5, -45, 184,
+ 237, -95, 253,
+ -139, -197, 297,
+ -19, -300, 511,
+ -63, -152, 139,
+ 250, -289, 336,
+ 124, 339, -150,
+ 34, 176, -208,
+ 171, 166, -116,
+ 94, 38, -229,
+ 75, -65, -339,
+ -78, -205, -385,
+ 0, -30, -163,
+ -56, -110, -242,
+ 321, 244, 194,
+ 505, 238, -1,
+ 317, 116, 65,
+ 309, 88, -74,
+ 452, -51, -50,
+ 334, -217, -290,
+ 211, 41, -152,
+ 238, -55, -260
+};
+
+
+/*
+ * 2nd stage codebook; 3rd split: isf2_6 to isf2_8
+ */
+
+
+const int16 dico23_isf[SIZE_BK23*3] =
+{
+
+ -10, 151, 359,
+ 136, 298, 223,
+ 255, -104, 290,
+ 423, 6, 183,
+ -270, -269, -98,
+ -52, -82, 13,
+ -82, -274, -97,
+ 90, -246, -72,
+ -299, -70, 421,
+ -88, 365, 430,
+ 187, -318, 381,
+ 380, 37, 488,
+ -373, -316, 79,
+ -308, -101, 5,
+ -135, -451, 8,
+ 72, -421, -154,
+ 180, 170, -121,
+ 62, 177, -40,
+ 326, 80, -105,
+ 248, 263, -5,
+ -168, -181, -221,
+ -2, -23, -158,
+ -14, -149, -121,
+ 119, -91, -147,
+ 119, 332, -153,
+ 49, 303, 34,
+ 442, -55, -69,
+ 217, 454, 58,
+ -359, -187, -375,
+ -42, 50, -274,
+ -8, -267, -249,
+ 85, -86, -346,
+ -77, -40, 345,
+ 89, 134, 219,
+ 156, -80, 160,
+ 108, 40, 116,
+ -158, -206, 29,
+ 5, -32, 175,
+ -65, -158, 146,
+ 55, -78, 73,
+ -114, -222, 353,
+ -47, 81, 211,
+ 49, -151, 268,
+ 105, 4, 302,
+ -263, -132, 183,
+ -151, -28, 201,
+ -177, -307, 166,
+ 101, -221, 130,
+ 74, 58, -98,
+ 32, 44, 13,
+ 194, 30, -142,
+ 170, 96, 8,
+ -136, -119, -91,
+ -65, 8, -55,
+ 3, -188, 12,
+ 45, -63, -49,
+ 149, -21, -19,
+ 24, 144, 95,
+ 254, -22, 60,
+ 161, 196, 96,
+ -158, -61, 48,
+ -70, 33, 82,
+ -23, -321, 58,
+ 155, -147, 5,
+ -364, 328, 77,
+ -21, 453, 173,
+ -108, 82, 630,
+ 367, 263, 208,
+ -300, -62, -176,
+ -205, 143, -158,
+ -169, -410, -264,
+ 257, -269, -100,
+ -636, 289, -2,
+ -292, 627, 173,
+ -382, -363, 387,
+ 248, 524, 447,
+ -521, -111, -107,
+ -395, 118, -274,
+ -343, -680, -125,
+ -172, -447, -663,
+ 75, 148, -367,
+ -79, 263, -94,
+ 249, 148, -286,
+ 380, 271, -162,
+ -142, -4, -186,
+ -57, 111, -125,
+ -35, -108, -254,
+ 100, 29, -242,
+ -80, 303, -264,
+ -78, 464, -57,
+ 248, -22, -494,
+ 661, 662, 44,
+ -193, -40, -330,
+ -178, 145, -337,
+ -90, -199, -400,
+ -40, -23, -498,
+ -192, 114, 315,
+ -41, 244, 190,
+ 88, -97, 485,
+ 241, 80, 212,
+ -246, 40, 87,
+ -156, 147, 134,
+ -2, -334, 239,
+ 308, -203, 110,
+ -459, 251, 422,
+ -218, 310, 228,
+ -86, -346, 654,
+ 184, 175, 425,
+ -481, -63, 169,
+ -349, 117, 188,
+ -125, -560, 310,
+ 158, -416, 94,
+ 46, 171, -192,
+ -63, 157, 14,
+ 256, -35, -271,
+ 322, 123, 53,
+ -214, 4, -76,
+ -156, 86, -18,
+ 128, -197, -232,
+ 265, -90, -98,
+ -308, 332, -145,
+ -131, 308, 58,
+ 509, 59, -339,
+ 562, 196, -14,
+ -378, 100, -47,
+ -234, 202, 1,
+ 104, -270, -493,
+ 319, -210, -325
+};
+
+
+/*
+ * 2nd stage codebook; 4th split: isf2_9 to isf2_11
+ */
+
+const int16 dico24_isf[SIZE_BK24*3] =
+{
+
+ -79, -89, -4,
+ -171, 77, -211,
+ 160, -193, 98,
+ 120, -103, 323,
+ 32, -22, -129,
+ 72, 78, -268,
+ 182, -76, -66,
+ 309, 99, -145,
+ -229, -157, -84,
+ -383, 98, -71,
+ -90, -352, 12,
+ -284, -178, 178,
+ -65, -125, -166,
+ -87, -175, -351,
+ 42, -198, -48,
+ 154, -140, -243,
+ -77, 18, 108,
+ -39, 355, 91,
+ 87, 8, 155,
+ -4, 158, 239,
+ 128, 95, -54,
+ 7, 246, -124,
+ 258, 15, 89,
+ 206, 216, 98,
+ -201, 9, 18,
+ -312, 233, 204,
+ -39, -174, 155,
+ -144, -9, 284,
+ -57, 70, -69,
+ -157, 187, 18,
+ 54, -30, 23,
+ 24, 135, 55
+};
+
+
+/*
+ * 2nd stage codebook; 5th split: isf2_12 to isf2_15
+ */
+
+const int16 dico25_isf[SIZE_BK25*4] =
+{
+
+ 169, 142, -119, 115,
+ 206, -20, 94, 226,
+ -106, 313, -21, 16,
+ -62, 161, 71, 255,
+ -89, 101, -185, 125,
+ 72, -30, -201, 344,
+ -258, 33, -8, 81,
+ -104, -154, 72, 296,
+ 144, -68, -268, -25,
+ 81, -78, -87, 106,
+ 22, 155, -186, -119,
+ -46, -28, 27, 91,
+ -114, -37, -175, -33,
+ -94, -222, -189, 122,
+ -132, -119, -191, -270,
+ -172, -173, 18, -43,
+ 279, 135, -42, -128,
+ 187, -86, 229, -138,
+ 159, 240, 140, 46,
+ 69, 25, 227, 77,
+ 21, 115, 13, 8,
+ 68, -248, 126, 81,
+ -150, 137, 207, -9,
+ -154, -133, 289, 67,
+ 143, -37, -86, -326,
+ 180, -32, 19, -23,
+ 26, 168, 116, -233,
+ -32, -26, 118, -78,
+ 3, -8, -45, -115,
+ 57, -215, -54, -83,
+ -209, 112, -22, -167,
+ -91, -151, 168, -262
+};
+
+
+
+/* 36 bit */
+/*
+ * isf codebooks: two-stage VQ with split-by-3 in 2nd stage
+ * 1st stage is kept the same as the 46 bit quantizer
+ *
+ * codebook vector dimension number of vectors
+ * ~~~~~~~~ ~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~
+ * 1_1 9 256
+ * 1_2 7 256
+ * 2_1 5 128
+ * 2_2 4 128
+ * 2_3 7 64
+ */
+
+const int16 dico21_isf_36b[SIZE_BK21_36b*5] =
+{
+
+ -52, -96, 212, 315, -73,
+ 82, -204, 363, 136, -197,
+ -126, -331, 183, 218, 143,
+ -49, -41, 557, 230, 72,
+ 2, -73, 163, 377, 221,
+ 133, 111, 278, 215, -110,
+ -102, -20, 284, 113, 273,
+ 84, 319, 290, 18, 85,
+ -25, -5, 125, 132, -204,
+ -38, -5, 286, -9, -356,
+ -140, -256, 92, 117, -189,
+ -144, 191, 313, 51, -98,
+ 167, -10, 44, 247, 36,
+ 381, 197, 238, 74, 6,
+ 38, -408, 29, -3, -85,
+ 92, 266, 157, -25, -200,
+ 161, -121, 70, 84, -140,
+ -16, -86, 112, -94, -189,
+ -269, -270, 351, 107, -24,
+ -68, -67, 492, -103, -155,
+ -53, -131, 62, 122, 10,
+ 135, 84, 283, -55, -120,
+ -12, -219, 331, -81, 167,
+ 220, -136, 147, -172, -42,
+ 140, -95, -109, -88, -194,
+ 0, -2, -4, -33, -381,
+ -66, -217, 152, -186, -402,
+ 244, 108, 156, -140, -395,
+ 113, -136, -196, 110, -24,
+ 214, 118, 11, -64, -131,
+ -110, -286, -6, -332, 16,
+ 94, 97, 79, -291, -205,
+ -5, -39, -20, 252, -96,
+ 76, 174, 101, 163, 61,
+ -69, -239, -55, 399, 6,
+ -115, 319, 164, 275, 196,
+ -15, 36, -47, 331, 121,
+ 226, 209, 271, 325, 184,
+ 13, -80, -218, 471, 353,
+ 288, 378, 16, -51, 251,
+ 174, 116, 52, 149, -279,
+ 235, 276, 39, 120, -48,
+ 0, -108, -108, 241, -339,
+ -93, 534, 45, 33, -87,
+ 194, 149, -71, 405, -44,
+ 409, 370, 81, -186, -154,
+ 25, -102, -448, 124, -173,
+ 22, 408, -110, -310, -214,
+ -26, 23, -83, 114, 14,
+ -110, 164, 52, 223, -82,
+ 37, -25, -263, 306, -15,
+ -466, 415, 292, 165, -18,
+ 29, -19, -171, 155, 182,
+ 179, 144, -27, 231, 258,
+ -103, -247, -396, 238, 113,
+ 375, -154, -109, -4, 156,
+ 98, 85, -292, -5, -124,
+ 116, 139, -116, -98, -294,
+ -14, -83, -278, -117, -378,
+ 106, 33, -106, -344, -484,
+ 119, 17, -412, 138, 166,
+ 384, 101, -204, 88, -156,
+ -121, -284, -300, -1, -166,
+ 280, 33, -152, -313, -81,
+ -37, 22, 229, 153, 37,
+ -60, -83, 236, -8, -41,
+ -169, -228, 126, -20, 363,
+ -235, 17, 364, -156, 156,
+ -25, -30, 72, 144, 156,
+ 153, -26, 256, 97, 144,
+ -21, -37, 48, -65, 250,
+ 63, 77, 273, -128, 124,
+ -129, -26, 40, 9, -115,
+ -6, 82, 38, -90, -182,
+ -336, -13, 28, 158, 91,
+ -30, 241, 137, -170, -17,
+ 146, 14, -11, 33, 61,
+ 192, 197, 54, -84, 85,
+ 23, -200, -78, -29, 140,
+ 122, 237, 106, -341, 136,
+ -57, -142, -85, -16, -74,
+ -59, -90, -8, -187, -20,
+ -211, -267, 216, -179, -110,
+ -50, -7, 220, -267, -70,
+ -57, -42, -17, -15, 71,
+ 32, 21, 63, -137, 33,
+ -137, -175, 104, -68, 97,
+ -67, -43, 133, -301, 221,
+ -116, -200, -81, -92, -272,
+ -64, -41, -54, -244, -220,
+ -287, -242, -50, -87, -89,
+ -245, 236, 102, -166, -295,
+ 66, 24, -162, -71, 95,
+ 66, 136, -90, -220, -36,
+ -98, -161, -222, -188, 29,
+ -18, 18, -19, -415, 9,
+ 49, 61, 100, 39, -56,
+ -111, 82, 135, -31, 52,
+ -90, -153, -93, 189, 182,
+ -214, 295, 119, -74, 284,
+ 2, 137, 37, 47, 182,
+ 92, 117, 184, -53, 373,
+ -21, -14, -35, 136, 391,
+ 146, 129, -164, -28, 333,
+ 92, 80, -84, 100, -134,
+ -8, 217, -32, 3, -47,
+ -151, 251, -215, 142, 92,
+ -224, 310, -172, -275, 98,
+ 159, 155, -177, 112, 53,
+ 205, 27, 8, -240, 192,
+ 169, 120, -319, -201, 106,
+ 11, 36, -86, -237, 455,
+ -109, -154, -163, 174, -55,
+ -38, 32, -101, -78, -59,
+ -205, -321, -97, 69, 79,
+ -310, 44, 18, -185, 34,
+ -115, -20, -148, -39, 203,
+ -29, 154, -30, -158, 166,
+ -45, -131, -317, -24, 363,
+ -165, -205, -112, -222, 265,
+ -32, -44, -150, 54, -193,
+ -6, -38, -255, -169, -115,
+ -266, 87, -189, -36, -169,
+ -60, -87, -266, -436, -170,
+ -68, -81, -278, 24, 38,
+ -23, -19, -155, -256, 141,
+ -61, -226, -565, -175, 71,
+ 9, -29, -237, -515, 263
+};
+
+const int16 dico22_isf_36b[SIZE_BK22_36b*4] =
+{
+
+ -298, -6, 95, 31,
+ -213, -87, -122, 261,
+ 4, -49, 208, 14,
+ -129, -110, 30, 118,
+ -214, 258, 110, -235,
+ -41, -18, -126, 120,
+ 103, 65, 127, -37,
+ 126, -36, -24, 25,
+ -138, -67, -278, -186,
+ -164, -194, -201, 78,
+ -211, -87, -51, -221,
+ -174, -79, -94, -39,
+ 23, -6, -157, -240,
+ 22, -110, -153, -68,
+ 148, -5, -2, -149,
+ -1, -135, -39, -179,
+ 68, 360, -117, -15,
+ 137, 47, -278, 146,
+ 136, 260, 135, 65,
+ 61, 116, -45, 97,
+ 231, 379, 87, -120,
+ 338, 177, -272, 3,
+ 266, 156, 28, -69,
+ 260, 84, -85, 86,
+ -266, 154, -256, -182,
+ -17, -65, -304, -6,
+ -40, 175, -151, -180,
+ -27, 27, -87, -63,
+ 121, 114, -166, -469,
+ 159, -66, -323, -231,
+ 214, 152, -141, -212,
+ 137, 36, -184, -51,
+ -282, -237, 40, 10,
+ -48, -235, -37, 251,
+ -54, -323, 136, 29,
+ -88, -174, 213, 198,
+ -390, 99, -63, -375,
+ 107, -169, -164, 424,
+ 69, -111, 141, -167,
+ 74, -129, 65, 144,
+ -353, -207, -205, -109,
+ -160, -386, -355, 98,
+ -176, -493, -20, -143,
+ -252, -432, -2, 216,
+ -90, -174, -168, -411,
+ 13, -284, -229, -160,
+ -87, -279, 34, -251,
+ -75, -263, -58, -42,
+ 420, 53, -211, -358,
+ 384, -35, -374, 396,
+ 68, -228, 323, -2,
+ 167, -307, 192, 194,
+ 459, 329, -5, -332,
+ 375, 79, -7, 313,
+ 282, -124, 200, -92,
+ 271, -162, -70, 180,
+ -157, -298, -514, -309,
+ 58, -163, -546, 18,
+ 124, -364, 167, -238,
+ 83, -411, -117, 96,
+ 140, -112, -388, -624,
+ 259, -133, -317, 41,
+ 163, -130, -64, -334,
+ 226, -165, -124, -110,
+ -466, -61, 6, 229,
+ -153, 205, -145, 242,
+ -159, 48, 195, 148,
+ -58, 28, 31, 279,
+ -303, 185, 279, -4,
+ -61, 197, 59, 86,
+ -114, 123, 168, -52,
+ 35, 36, 100, 126,
+ -407, 102, -77, -40,
+ -338, -1, -342, 156,
+ -179, 105, -34, -97,
+ -185, 84, -35, 108,
+ -133, 107, -91, -357,
+ -180, 54, -229, 24,
+ -44, 47, 47, -182,
+ -66, 13, 45, 4,
+ -339, 251, 64, 226,
+ -42, 101, -350, 275,
+ -99, 398, 142, 121,
+ 111, 12, -102, 260,
+ 0, 505, 260, -94,
+ 161, 285, -96, 224,
+ -4, 206, 314, 33,
+ 167, 139, 88, 204,
+ -235, 316, -60, -25,
+ -8, -150, -312, 201,
+ -36, 292, 61, -104,
+ -40, 174, -162, 42,
+ -21, 402, -29, -351,
+ 21, 152, -360, -93,
+ 57, 191, 212, -196,
+ 76, 158, -21, -69,
+ -328, -185, 331, 119,
+ -53, 285, 56, 337,
+ -107, -24, 405, 29,
+ -18, 137, 272, 277,
+ -255, 22, 173, -191,
+ 295, 322, 325, 302,
+ 21, -27, 332, -178,
+ 119, 13, 271, 129,
+ -455, -180, 116, -191,
+ -227, 62, -148, 524,
+ -176, -287, 282, -157,
+ -243, 13, 199, 430,
+ -59, -49, 115, -365,
+ 72, -172, -137, 93,
+ -138, -126, 141, -84,
+ 5, -124, 38, -20,
+ -258, 311, 601, 213,
+ 94, 130, -61, 502,
+ -1, -157, 485, 313,
+ 146, -74, 158, 345,
+ 276, 135, 280, -57,
+ 490, 252, 99, 43,
+ 267, -74, 429, 105,
+ 278, -23, 119, 94,
+ -542, 488, 257, -115,
+ -84, -244, -438, 478,
+ -113, -545, 387, 101,
+ -95, -306, 111, 498,
+ 95, 166, 22, -301,
+ 420, -15, -58, -78,
+ 270, 29, 122, -282,
+ 160, -240, 50, -38
+};
+
+const int16 dico23_isf_36b[SIZE_BK23_36b*7] =
+{
+
+ 81, -18, 68, -27, -122, -280, -4,
+ 45, -177, 209, -30, -136, -74, 131,
+ -44, 101, -75, -88, -48, -137, -54,
+ -245, -28, 63, -18, -112, -103, 58,
+ -79, -6, 220, -65, 114, -35, -50,
+ 109, -65, 143, -114, 129, 76, 125,
+ 166, 90, -61, -242, 186, -74, -43,
+ -46, -92, 49, -227, 24, -155, 39,
+ 67, 85, 99, -42, 53, -184, -281,
+ 142, -122, 0, 21, -142, -15, -17,
+ 223, 92, -21, -48, -82, -14, -167,
+ 51, -37, -243, -30, -90, 18, -56,
+ 54, 105, 74, 86, 69, 13, -101,
+ 196, 72, -89, 43, 65, 19, 39,
+ 121, 34, 131, -82, 25, 213, -156,
+ 101, -102, -136, -21, 57, 214, 22,
+ 36, -124, 205, 204, 58, -156, -83,
+ 83, -117, 137, 137, 85, 116, 44,
+ -92, -148, -68, 11, -102, -197, -220,
+ -76, -185, -58, 132, -26, -183, 85,
+ -7, -31, -2, 23, 205, -151, 10,
+ -27, -37, -5, -18, 292, 131, 1,
+ 117, -168, 9, -93, 80, -59, -125,
+ -182, -244, 98, -24, 135, -22, 94,
+ 221, 97, 106, 42, 43, -160, 83,
+ 25, -64, -21, 6, 14, -15, 154,
+ 126, 15, -140, 150, -10, -207, -114,
+ 79, -63, -211, -70, -28, -217, 165,
+ 46, 38, -22, 281, 132, -62, 109,
+ 112, 54, -112, -93, 208, 27, 296,
+ 115, 10, -147, 41, 216, 42, -276,
+ 50, -115, -254, 167, 117, -2, 61,
+ 17, 144, 34, -72, -186, -150, 272,
+ -29, -66, -89, -95, -149, 129, 251,
+ 122, 0, -50, -234, -91, 36, 26,
+ -105, -102, -88, -121, -236, -7, -11,
+ -204, 109, 5, -191, 105, -15, 163,
+ -80, 32, -24, -209, 41, 294, 70,
+ -106, -94, -204, -118, 120, -50, -37,
+ -82, -241, 46, -131, -29, 150, -55,
+ 33, 155, 120, -89, -8, 7, 62,
+ 213, 82, 61, 18, -161, 144, 152,
+ 30, 131, 65, -87, -255, -17, -107,
+ -8, 85, -64, 51, -162, 223, -53,
+ -134, 261, 69, -56, 218, 72, -111,
+ 2, 155, -113, -87, 49, 85, -28,
+ -163, 42, -1, -196, 7, 39, -245,
+ 14, -137, -79, 11, -160, 202, -293,
+ -94, 33, 208, 100, 56, -44, 326,
+ -78, -41, 232, 13, -142, 227, 80,
+ -16, -87, 201, 33, -133, 15, -183,
+ -58, -192, -47, 184, -128, 133, 99,
+ -205, 11, -155, 78, 52, 72, 141,
+ -246, 26, 99, 151, 59, 115, -64,
+ -79, -47, -16, -14, 6, 47, -43,
+ -72, -178, -27, 162, 112, 43, -174,
+ -175, 238, 186, 71, -54, -188, -76,
+ -225, 233, 39, -39, -158, 122, 44,
+ -26, 43, 84, 130, -93, -51, 22,
+ 3, 92, -150, 136, -182, -57, 97,
+ -131, 179, -78, 80, 91, -165, 90,
+ -2, 148, 15, 130, 65, 175, 117,
+ -138, 114, -137, 132, 3, -10, -186,
+ 140, -4, -37, 254, -62, 92, -109
+};
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: scale_signal.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 signal[], (i/o) : signal to scale
+ int16 lg, (i) : size of x[]
+ int16 exp (i) : exponent: x = round(x << exp)
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Scale signal to get maximum of dynamic range
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void scale_signal(
+ int16 x[], /* (i/o) : signal to scale */
+ int16 lg, /* (i) : size of x[] */
+ int16 exp /* (i) : exponent: x = round(x << exp) */
+)
+{
+ int16 i;
+ int16 tmp;
+ int16 *pt_x;
+
+
+ int32 L_tmp;
+
+
+ if (exp > 0)
+ {
+ for (i = 0; i < lg; i++)
+ {
+ L_tmp = shl_int32(((int32)x[i] << 16), exp); /* saturation can occur here */
+ x[i] = amr_wb_round(L_tmp);
+ }
+ }
+ else if (exp < 0)
+ {
+ exp = -exp;
+ exp &= 0xf;
+ tmp = (int16)(0x00008000 >> (16 - exp));
+ pt_x = x;
+
+ for (i = lg >> 1; i != 0; i--)
+ {
+ *(pt_x) = add_int16(*(pt_x), tmp) >> exp;
+ pt_x++;
+ *(pt_x) = add_int16(*(pt_x), tmp) >> exp;
+ pt_x++;
+ }
+
+ }
+ return;
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: synthesis_amr_wb.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 Aq[], A(z) : quantized Az
+ int16 exc[], (i) : excitation at 12kHz
+ int16 Q_new, (i) : scaling performed on exc
+ int16 synth16k[], (o) : 16kHz synthesis signal
+ int16 prms, (i) : compressed amr wb
+ int16 HfIsf[],
+ int16 nb_bits,
+ int16 newDTXState,
+ Decoder_State * st, (i/o) : State structure
+ int16 bfi, (i) : bad frame indicator
+ int16 *ScratchMem
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Synthesis of signal at 16kHz with HF extension
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_mem_funcs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+#include "e_pv_amrwbdec.h"
+#include "get_amr_wb_bits.h"
+#include "pvamrwb_math_op.h"
+#include "pvamrwbdecoder_api.h"
+#include "synthesis_amr_wb.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+/* High Band encoding */
+const int16 HP_gain[16] =
+{
+ 3624, 4673, 5597, 6479, 7425, 8378, 9324, 10264,
+ 11210, 12206, 13391, 14844, 16770, 19655, 24289, 32728
+};
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void synthesis_amr_wb(
+ int16 Aq[], /* A(z) : quantized Az */
+ int16 exc[], /* (i) : excitation at 12kHz */
+ int16 Q_new, /* (i) : scaling performed on exc */
+ int16 synth16k[], /* (o) : 16kHz synthesis signal */
+ int16 prms, /* (i) : parameter */
+ int16 HfIsf[],
+ int16 nb_bits,
+ int16 newDTXState,
+ Decoder_State * st, /* (i/o) : State structure */
+ int16 bfi, /* (i) : bad frame indicator */
+ int16 *ScratchMem
+)
+{
+ int16 i, fac, exp;
+ int16 tmp;
+ int16 ener, exp_ener;
+ int32 L_tmp;
+ int32 L_tmp2;
+
+ int16 HF_corr_gain;
+ int16 HF_gain_ind;
+ int16 gain1, gain2;
+
+ int16 *pt_synth;
+ int16 *pt_HF;
+ int16 *synth_hi = ScratchMem;
+ int16 *synth_lo = &ScratchMem[M + L_SUBFR];
+ int16 *synth = &synth_lo[M + L_SUBFR];
+ int16 *HF = &synth[L_SUBFR];
+ int16 *Ap = &HF[L_SUBFR16k]; /* High Frequency vector */
+ int16 *HfA = &Ap[M16k + 1];
+ int16 *pt_tmp;
+
+ /*------------------------------------------------------------*
+ * speech synthesis *
+ * ~~~~~~~~~~~~~~~~ *
+ * - Find synthesis speech corresponding to exc2[]. *
+ * - Perform fixed deemphasis and hp 50hz filtering. *
+ * - Oversampling from 12.8kHz to 16kHz. *
+ *------------------------------------------------------------*/
+
+ pv_memcpy((void *)synth_hi,
+ (void *)st->mem_syn_hi,
+ M*sizeof(*synth_hi));
+
+ pv_memcpy((void *)synth_lo,
+ (void *)st->mem_syn_lo,
+ M*sizeof(*synth_lo));
+
+ Syn_filt_32(Aq, M, exc, Q_new, synth_hi + M, synth_lo + M, L_SUBFR);
+
+ pv_memcpy((void *)st->mem_syn_hi,
+ (void *)(synth_hi + L_SUBFR),
+ M*sizeof(*st->mem_syn_hi));
+
+ pv_memcpy((void *)st->mem_syn_lo,
+ (void *)(synth_lo + L_SUBFR),
+ M*sizeof(*st->mem_syn_lo));
+
+ deemphasis_32(synth_hi + M,
+ synth_lo + M,
+ synth,
+ PREEMPH_FAC,
+ L_SUBFR,
+ &(st->mem_deemph));
+
+ highpass_50Hz_at_12k8(synth,
+ L_SUBFR,
+ st->mem_sig_out);
+
+ oversamp_12k8_to_16k(synth,
+ L_SUBFR,
+ synth16k,
+ st->mem_oversamp,
+ ScratchMem);
+
+ /*
+ * HF noise synthesis
+ * - Generate HF noise between 5.5 and 7.5 kHz.
+ * - Set energy of noise according to synthesis tilt.
+ * tilt > 0.8 ==> - 14 dB (voiced)
+ * tilt 0.5 ==> - 6 dB (voiced or noise)
+ * tilt < 0.0 ==> 0 dB (noise)
+ */
+
+ /* generate white noise vector */
+ pt_tmp = HF;
+ for (i = L_SUBFR16k >> 2; i != 0 ; i--)
+ {
+ *(pt_tmp++) = noise_gen_amrwb(&(st->seed2)) >> 3;
+ *(pt_tmp++) = noise_gen_amrwb(&(st->seed2)) >> 3;
+ *(pt_tmp++) = noise_gen_amrwb(&(st->seed2)) >> 3;
+ *(pt_tmp++) = noise_gen_amrwb(&(st->seed2)) >> 3;
+ }
+ /* energy of excitation */
+
+ pt_tmp = exc;
+
+ for (i = L_SUBFR >> 2; i != 0; i--)
+ {
+ *(pt_tmp) = add_int16(*(pt_tmp), 0x0004) >> 3;
+ pt_tmp++;
+ *(pt_tmp) = add_int16(*(pt_tmp), 0x0004) >> 3;
+ pt_tmp++;
+ *(pt_tmp) = add_int16(*(pt_tmp), 0x0004) >> 3;
+ pt_tmp++;
+ *(pt_tmp) = add_int16(*(pt_tmp), 0x0004) >> 3;
+ pt_tmp++;
+ }
+
+
+ Q_new -= 3;
+
+ ener = extract_h(Dot_product12(exc, exc, L_SUBFR, &exp_ener));
+ exp_ener -= Q_new << 1;
+
+ /* set energy of white noise to energy of excitation */
+
+ tmp = extract_h(Dot_product12(HF, HF, L_SUBFR16k, &exp));
+
+ if (tmp > ener)
+ {
+ tmp >>= 1; /* Be sure tmp < ener */
+ exp += 1;
+ }
+ L_tmp = L_deposit_h(div_16by16(tmp, ener)); /* result is normalized */
+ exp -= exp_ener;
+ one_ov_sqrt_norm(&L_tmp, &exp);
+ L_tmp = shl_int32(L_tmp, exp + 1); /* L_tmp x 2, L_tmp in Q31 */
+
+ tmp = (int16)(L_tmp >> 16); /* tmp = 2 x sqrt(ener_exc/ener_hf) */
+
+
+
+ pt_tmp = HF;
+ for (i = L_SUBFR16k >> 2; i != 0 ; i--)
+ {
+ *(pt_tmp) = (int16)(fxp_mul_16by16(*(pt_tmp), tmp) >> 15);
+ pt_tmp++;
+ *(pt_tmp) = (int16)(fxp_mul_16by16(*(pt_tmp), tmp) >> 15);
+ pt_tmp++;
+ *(pt_tmp) = (int16)(fxp_mul_16by16(*(pt_tmp), tmp) >> 15);
+ pt_tmp++;
+ *(pt_tmp) = (int16)(fxp_mul_16by16(*(pt_tmp), tmp) >> 15);
+ pt_tmp++;
+ }
+
+ /* find tilt of synthesis speech (tilt: 1=voiced, -1=unvoiced) */
+
+ highpass_400Hz_at_12k8(synth, L_SUBFR, st->mem_hp400);
+
+ L_tmp = 1L;
+ L_tmp2 = 1L;
+
+
+ L_tmp = mac_16by16_to_int32(L_tmp, synth[0], synth[0]);
+
+ for (i = 1; i < L_SUBFR; i++)
+ {
+ L_tmp = mac_16by16_to_int32(L_tmp, synth[i], synth[i ]);
+ L_tmp2 = mac_16by16_to_int32(L_tmp2, synth[i], synth[i - 1]);
+ }
+
+
+ exp = normalize_amr_wb(L_tmp);
+
+ ener = (int16)((L_tmp << exp) >> 16); /* ener = r[0] */
+ tmp = (int16)((L_tmp2 << exp) >> 16); /* tmp = r[1] */
+
+ if (tmp > 0)
+ {
+ fac = div_16by16(tmp, ener);
+ }
+ else
+ {
+ fac = 0;
+ }
+
+ /* modify energy of white noise according to synthesis tilt */
+ gain1 = 32767 - fac;
+ gain2 = mult_int16(gain1, 20480);
+ gain2 = shl_int16(gain2, 1);
+
+ if (st->vad_hist > 0)
+ {
+ tmp = gain2 - 1;
+ }
+ else
+ {
+ tmp = gain1 - 1;
+ }
+
+
+ if (tmp != 0)
+ {
+ tmp++;
+ }
+
+ if (tmp < 3277)
+ {
+ tmp = 3277; /* 0.1 in Q15 */
+
+ }
+
+
+ if ((nb_bits >= NBBITS_24k) && (bfi == 0))
+ {
+ /* HF correction gain */
+ HF_gain_ind = prms;
+ HF_corr_gain = HP_gain[HF_gain_ind];
+
+ pt_tmp = HF;
+ for (i = L_SUBFR16k >> 2; i != 0 ; i--)
+ {
+ *(pt_tmp) = mult_int16(*(pt_tmp), HF_corr_gain) << 1;
+ pt_tmp++;
+ *(pt_tmp) = mult_int16(*(pt_tmp), HF_corr_gain) << 1;
+ pt_tmp++;
+ *(pt_tmp) = mult_int16(*(pt_tmp), HF_corr_gain) << 1;
+ pt_tmp++;
+ *(pt_tmp) = mult_int16(*(pt_tmp), HF_corr_gain) << 1;
+ pt_tmp++;
+ }
+
+ /* HF gain */
+ }
+ else
+ {
+ pt_tmp = HF;
+ for (i = L_SUBFR16k >> 2; i != 0 ; i--)
+ {
+ *(pt_tmp) = mult_int16(*(pt_tmp), tmp);
+ pt_tmp++;
+ *(pt_tmp) = mult_int16(*(pt_tmp), tmp);
+ pt_tmp++;
+ *(pt_tmp) = mult_int16(*(pt_tmp), tmp);
+ pt_tmp++;
+ *(pt_tmp) = mult_int16(*(pt_tmp), tmp);
+ pt_tmp++;
+ }
+ }
+
+
+ if ((nb_bits <= NBBITS_7k) && (newDTXState == SPEECH))
+ {
+ isf_extrapolation(HfIsf);
+ Isp_Az(HfIsf, HfA, M16k, 0);
+
+ weight_amrwb_lpc(HfA, Ap, 29491, M16k); /* fac=0.9 */
+
+ wb_syn_filt(Ap,
+ M16k,
+ HF,
+ HF,
+ L_SUBFR16k,
+ st->mem_syn_hf,
+ 1,
+ ScratchMem);
+ }
+ else
+ {
+ /* synthesis of noise: 4.8kHz..5.6kHz --> 6kHz..7kHz */
+ weight_amrwb_lpc(Aq, Ap, 19661, M); /* fac=0.6 */
+
+ wb_syn_filt(Ap,
+ M,
+ HF,
+ HF,
+ L_SUBFR16k,
+ st->mem_syn_hf + (M16k - M),
+ 1,
+ ScratchMem);
+ }
+
+ /* noise Band Pass filtering (1ms of delay) */
+ band_pass_6k_7k(HF,
+ L_SUBFR16k,
+ st->mem_hf,
+ ScratchMem);
+
+
+ if (nb_bits >= NBBITS_24k)
+ {
+ /* Low Pass filtering (7 kHz) */
+ low_pass_filt_7k(HF,
+ L_SUBFR16k,
+ st->mem_hf3,
+ ScratchMem);
+ }
+ /* add filtered HF noise to speech synthesis */
+
+ pt_synth = synth16k;
+ pt_HF = HF;
+
+ for (i = L_SUBFR16k >> 1; i != 0; i--)
+ {
+ *(pt_synth) = add_int16(*(pt_synth), *(pt_HF++)); /* check 16 bit saturation */
+ pt_synth++;
+ *(pt_synth) = add_int16(*(pt_synth), *(pt_HF++));
+ pt_synth++;
+ }
+
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Pathname: ./cpp/include/synthesis_amr_wb.h
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef SYNTHESIS_AMR_WB_H
+#define SYNTHESIS_AMR_WB_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES AND SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ void synthesis_amr_wb(
+ int16 Aq[], /* A(z) : quantized Az */
+ int16 exc[], /* (i) : excitation at 12kHz */
+ int16 Q_new, /* (i) : scaling performed on exc */
+ int16 synth16k[], /* (o) : 16kHz synthesis signal */
+ int16 prms, /* (i) : parameter */
+ int16 HfIsf[],
+ int16 nb_bits,
+ int16 newDTXState,
+ Decoder_State * st, /* (i/o) : State structure */
+ int16 bfi, /* (i) : bad frame indicator */
+ int16 * ScratchMemory
+ );
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
+#endif /* PV_NORMALIZE_H */
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: voice_factor.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 exc[], (i) Q_exc : pitch excitation
+ int16 Q_exc, (i) : exc format
+ int16 gain_pit, (i) Q14 : gain of pitch
+ int16 code[], (i) Q9 : Fixed codebook excitation
+ int16 gain_code, (i) Q0 : gain of code
+ int16 L_subfr (i) : subframe length
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Find the voicing factor (1=voice to -1=unvoiced).
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwb_math_op.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+int16 voice_factor( /* (o) Q15 : factor (-1=unvoiced to 1=voiced) */
+ int16 exc[], /* (i) Q_exc : pitch excitation */
+ int16 Q_exc, /* (i) : exc format */
+ int16 gain_pit, /* (i) Q14 : gain of pitch */
+ int16 code[], /* (i) Q9 : Fixed codebook excitation */
+ int16 gain_code, /* (i) Q0 : gain of code */
+ int16 L_subfr /* (i) : subframe length */
+)
+{
+ int16 i, tmp, exp, ener1, exp1, ener2, exp2;
+ int32 L_tmp;
+
+ ener1 = extract_h(Dot_product12(exc, exc, L_subfr, &exp1));
+ exp1 = sub_int16(exp1, Q_exc << 1);
+ L_tmp = mul_16by16_to_int32(gain_pit, gain_pit);
+ exp = normalize_amr_wb(L_tmp);
+
+ tmp = (int16)((L_tmp << exp) >> 16);
+ ener1 = mult_int16(ener1, tmp);
+ exp1 -= (exp + 10); /* 10 -> gain_pit Q14 to Q9 */
+
+ ener2 = extract_h(Dot_product12(code, code, L_subfr, &exp2));
+
+ exp = norm_s(gain_code);
+ tmp = shl_int16(gain_code, exp);
+ tmp = mult_int16(tmp, tmp);
+ ener2 = mult_int16(ener2, tmp);
+ exp2 -= (exp << 1);
+
+ i = exp1 - exp2;
+
+
+ if (i >= 0)
+ {
+ ener1 >>= 1;
+ ener2 >>= (i + 1);
+ }
+ else
+ {
+ ener1 >>= (1 - i);
+ ener2 >>= 1;
+ }
+
+ tmp = ener1 - ener2;
+ ener1 += ener2 + 1;
+
+
+ if (tmp >= 0)
+ {
+ tmp = div_16by16(tmp, ener1);
+ }
+ else
+ {
+ tmp = negate_int16(div_16by16(negate_int16(tmp), ener1));
+ }
+
+ return (tmp);
+}
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: wb_syn_filt.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+wb_syn_filt
+
+ int16 a[], (i) Q12 : a[m+1] prediction coefficients
+ int16 m, (i) : order of LP filter
+ int16 x[], (i) : input signal
+ int16 y[], (o) : output signal
+ int16 lg, (i) : size of filtering
+ int16 mem[], (i/o) : memory associated with this filtering.
+ int16 update, (i) : 0=no update, 1=update of memory.
+ int16 y_buf[]
+
+Syn_filt_32
+
+ int16 a[], (i) Q12 : a[m+1] prediction coefficients
+ int16 m, (i) : order of LP filter
+ int16 exc[], (i) Qnew: excitation (exc[i] >> Qnew)
+ int16 Qnew, (i) : exc scaling = 0(min) to 8(max)
+ int16 sig_hi[], (o) /16 : synthesis high
+ int16 sig_lo[], (o) /16 : synthesis low
+ int16 lg (i) : size of filtering
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Do the synthesis filtering 1/A(z) 16 and 32-bits version
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_mem_funcs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwb_math_op.h"
+#include "pvamrwbdecoder_cnst.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void wb_syn_filt(
+ int16 a[], /* (i) Q12 : a[m+1] prediction coefficients */
+ int16 m, /* (i) : order of LP filter */
+ int16 x[], /* (i) : input signal */
+ int16 y[], /* (o) : output signal */
+ int16 lg, /* (i) : size of filtering */
+ int16 mem[], /* (i/o) : memory associated with this filtering. */
+ int16 update, /* (i) : 0=no update, 1=update of memory. */
+ int16 y_buf[]
+)
+{
+
+ int16 i, j;
+ int32 L_tmp1;
+ int32 L_tmp2;
+ int32 L_tmp3;
+ int32 L_tmp4;
+ int16 *yy;
+
+ /* copy initial filter states into synthesis buffer */
+ pv_memcpy(y_buf, mem, m*sizeof(*yy));
+
+ yy = &y_buf[m];
+
+ /* Do the filtering. */
+
+ for (i = 0; i < lg >> 2; i++)
+ {
+ L_tmp1 = -((int32)x[(i<<2)] << 11);
+ L_tmp2 = -((int32)x[(i<<2)+1] << 11);
+ L_tmp3 = -((int32)x[(i<<2)+2] << 11);
+ L_tmp4 = -((int32)x[(i<<2)+3] << 11);
+
+ /* a[] uses Q12 and abs(a) =< 1 */
+
+ L_tmp1 = fxp_mac_16by16(yy[(i<<2) -3], a[3], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(yy[(i<<2) -2], a[3], L_tmp2);
+ L_tmp1 = fxp_mac_16by16(yy[(i<<2) -2], a[2], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(yy[(i<<2) -1], a[2], L_tmp2);
+ L_tmp1 = fxp_mac_16by16(yy[(i<<2) -1], a[1], L_tmp1);
+
+ for (j = 4; j < m; j += 2)
+ {
+ L_tmp1 = fxp_mac_16by16(yy[(i<<2)-1 - j], a[j+1], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(yy[(i<<2) - j], a[j+1], L_tmp2);
+ L_tmp1 = fxp_mac_16by16(yy[(i<<2) - j], a[j ], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(yy[(i<<2)+1 - j], a[j ], L_tmp2);
+ L_tmp3 = fxp_mac_16by16(yy[(i<<2)+1 - j], a[j+1], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(yy[(i<<2)+2 - j], a[j+1], L_tmp4);
+ L_tmp3 = fxp_mac_16by16(yy[(i<<2)+2 - j], a[j ], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(yy[(i<<2)+3 - j], a[j ], L_tmp4);
+ }
+
+ L_tmp1 = fxp_mac_16by16(yy[(i<<2) - j], a[j], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(yy[(i<<2)+1 - j], a[j], L_tmp2);
+ L_tmp3 = fxp_mac_16by16(yy[(i<<2)+2 - j], a[j], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(yy[(i<<2)+3 - j], a[j], L_tmp4);
+
+ L_tmp1 = shl_int32(L_tmp1, 4);
+
+ y[(i<<2)] = yy[(i<<2)] = amr_wb_round(-L_tmp1);
+
+ L_tmp2 = fxp_mac_16by16(yy[(i<<2)], a[1], L_tmp2);
+
+ L_tmp2 = shl_int32(L_tmp2, 4);
+
+ y[(i<<2)+1] = yy[(i<<2)+1] = amr_wb_round(-L_tmp2);
+
+ L_tmp3 = fxp_mac_16by16(yy[(i<<2) - 1], a[3], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(yy[(i<<2)], a[3], L_tmp4);
+ L_tmp3 = fxp_mac_16by16(yy[(i<<2)], a[2], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(yy[(i<<2) + 1], a[2], L_tmp4);
+ L_tmp3 = fxp_mac_16by16(yy[(i<<2) + 1], a[1], L_tmp3);
+
+ L_tmp3 = shl_int32(L_tmp3, 4);
+
+ y[(i<<2)+2] = yy[(i<<2)+2] = amr_wb_round(-L_tmp3);
+
+ L_tmp4 = fxp_mac_16by16(yy[(i<<2)+2], a[1], L_tmp4);
+
+ L_tmp4 = shl_int32(L_tmp4, 4);
+
+ y[(i<<2)+3] = yy[(i<<2)+3] = amr_wb_round(-L_tmp4);
+ }
+
+
+ /* Update memory if required */
+
+ if (update)
+ {
+ pv_memcpy(mem, &y[lg - m], m*sizeof(*y));
+ }
+
+ return;
+}
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void Syn_filt_32(
+ int16 a[], /* (i) Q12 : a[m+1] prediction coefficients */
+ int16 m, /* (i) : order of LP filter */
+ int16 exc[], /* (i) Qnew: excitation (exc[i] >> Qnew) */
+ int16 Qnew, /* (i) : exc scaling = 0(min) to 8(max) */
+ int16 sig_hi[], /* (o) /16 : synthesis high */
+ int16 sig_lo[], /* (o) /16 : synthesis low */
+ int16 lg /* (i) : size of filtering */
+)
+{
+ int16 i, k, a0;
+ int32 L_tmp1;
+ int32 L_tmp2;
+ int32 L_tmp3;
+ int32 L_tmp4;
+
+ a0 = 9 - Qnew; /* input / 16 and >>Qnew */
+
+ /* Do the filtering. */
+
+ for (i = 0; i < lg >> 1; i++)
+ {
+
+ L_tmp3 = 0;
+ L_tmp4 = 0;
+
+ L_tmp1 = fxp_mul_16by16(sig_lo[(i<<1) - 1], a[1]);
+ L_tmp2 = fxp_mul_16by16(sig_hi[(i<<1) - 1], a[1]);
+
+ for (k = 2; k < m; k += 2)
+ {
+
+ L_tmp1 = fxp_mac_16by16(sig_lo[(i<<1)-1 - k], a[k+1], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(sig_hi[(i<<1)-1 - k], a[k+1], L_tmp2);
+ L_tmp1 = fxp_mac_16by16(sig_lo[(i<<1) - k], a[k ], L_tmp1);
+ L_tmp2 = fxp_mac_16by16(sig_hi[(i<<1) - k], a[k ], L_tmp2);
+ L_tmp3 = fxp_mac_16by16(sig_lo[(i<<1) - k], a[k+1], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(sig_hi[(i<<1) - k], a[k+1], L_tmp4);
+ L_tmp3 = fxp_mac_16by16(sig_lo[(i<<1)+1 - k], a[k ], L_tmp3);
+ L_tmp4 = fxp_mac_16by16(sig_hi[(i<<1)+1 - k], a[k ], L_tmp4);
+ }
+
+ L_tmp1 = -fxp_mac_16by16(sig_lo[(i<<1) - k], a[k], L_tmp1);
+ L_tmp3 = fxp_mac_16by16(sig_lo[(i<<1)+1 - k], a[k], L_tmp3);
+ L_tmp2 = fxp_mac_16by16(sig_hi[(i<<1) - k], a[k], L_tmp2);
+ L_tmp4 = fxp_mac_16by16(sig_hi[(i<<1)+1 - k], a[k], L_tmp4);
+
+
+
+ L_tmp1 >>= 11; /* -4 : sig_lo[i] << 4 */
+
+ L_tmp1 += (int32)exc[(i<<1)] << a0;
+
+ L_tmp1 -= (L_tmp2 << 1);
+ /* sig_hi = bit16 to bit31 of synthesis */
+ L_tmp1 = shl_int32(L_tmp1, 3); /* ai in Q12 */
+
+ sig_hi[(i<<1)] = (int16)(L_tmp1 >> 16);
+
+ L_tmp4 = fxp_mac_16by16((int16)(L_tmp1 >> 16), a[1], L_tmp4);
+
+ /* sig_lo = bit4 to bit15 of synthesis */
+ /* L_tmp1 >>= 4 : sig_lo[i] >> 4 */
+ sig_lo[(i<<1)] = (int16)((L_tmp1 >> 4) - ((L_tmp1 >> 16) << 12));
+
+ L_tmp3 = fxp_mac_16by16(sig_lo[(i<<1)], a[1], L_tmp3);
+ L_tmp3 = -L_tmp3 >> 11;
+
+ L_tmp3 += (int32)exc[(i<<1)+1] << a0;
+
+ L_tmp3 -= (L_tmp4 << 1);
+ /* sig_hi = bit16 to bit31 of synthesis */
+ L_tmp3 = shl_int32(L_tmp3, 3); /* ai in Q12 */
+ sig_hi[(i<<1)+1] = (int16)(L_tmp3 >> 16);
+
+ /* sig_lo = bit4 to bit15 of synthesis */
+ /* L_tmp1 >>= 4 : sig_lo[i] >> 4 */
+ sig_lo[(i<<1)+1] = (int16)((L_tmp3 >> 4) - (sig_hi[(i<<1)+1] << 12));
+ }
+
+}
+
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+ 3GPP TS 26.173
+ ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
+ Available from http://www.3gpp.org
+
+(C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*
+------------------------------------------------------------------------------
+
+
+
+ Filename: weight_amrwb_lpc.cpp
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ int16 a[], (i) Q12 : a[m+1] LPC coefficients
+ int16 ap[], (o) Q12 : Spectral expanded LPC coefficients
+ int16 gamma, (i) Q15 : Spectral expansion factor.
+ int16 m (i) : LPC order.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Weighting of LPC coefficients.
+ ap[i] = a[i] (gamma i)
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_amr_wb_type_defs.h"
+#include "pvamrwbdecoder_basic_op.h"
+#include "pvamrwbdecoder_acelp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void weight_amrwb_lpc(
+ int16 a[], /* (i) Q12 : a[m+1] LPC coefficients */
+ int16 ap[], /* (o) Q12 : Spectral expanded LPC coefficients */
+ int16 gamma, /* (i) Q15 : Spectral expansion factor. */
+ int16 m /* (i) : LPC order. */
+)
+{
+ int16 i, fac;
+ int32 roundFactor = 0x00004000L;
+ ap[0] = a[0];
+ fac = gamma;
+ for (i = 1; i < m; i++)
+ {
+ ap[i] = (int16)(fxp_mac_16by16(a[i], fac, roundFactor) >> 15);
+ fac = (int16)(fxp_mac_16by16(fac, gamma, roundFactor) >> 15);
+ }
+ ap[i] = (int16)(fxp_mac_16by16(a[i], fac, roundFactor) >> 15);
+
+ return;
+}
--- /dev/null
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+
+
+
+
+
+LOCAL_CFLAGS := $(PV_CFLAGS)
+
+LOCAL_ARM_MODE := arm
+
+LOCAL_STATIC_LIBRARIES :=
+
+LOCAL_SHARED_LIBRARIES :=
+
+LOCAL_C_INCLUDES := \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/common/dec/build/make \
+ $(PV_TOP)/codecs_v2/audio/gsm_amr/common/dec/include \
+ $(PV_INCLUDES)
+
+LOCAL_COPY_HEADERS_TO := $(PV_COPY_HEADERS_TO)
+
+LOCAL_COPY_HEADERS := \
+ include/pvgsmamrdecoderinterface.h
+
+include $(BUILD_COPY_HEADERS)
--- /dev/null
+# Get the current local path as the first operation
+LOCAL_PATH := $(call get_makefile_dir)
+
+# Clear out the variables used in the local makefiles
+include $(MK)/clear.mk
+
+TARGET :=
+
+
+INCSRCDIR := ../../include
+
+HDRS := pvgsmamrdecoderinterface.h
+
+
+include $(MK)/library.mk
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+//////////////////////////////////////////////////////////////////////////////////
+// //
+// File: pvgsmamrdecoderinterface.h //
+// //
+//////////////////////////////////////////////////////////////////////////////////
+
+#ifndef _PVGSMAMR_DECODER_INTERFACE_H
+#define _PVGSMAMR_DECODER_INTERFACE_H
+
+#include "oscl_base.h"
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+typedef enum
+{
+ /*
+ * One word (2-byte) to indicate type of frame type.
+ * One word (2-byte) to indicate frame type.
+ * One word (2-byte) to indicate mode.
+ * N words (2-byte) containing N bits (bit 0 = 0xff81, bit 1 = 0x007f).
+ */
+ ETS = 0, /* Both AMR-Narrowband and AMR-Wideband */
+
+ /*
+ * One word (2-byte) for sync word (good frames: 0x6b21, bad frames: 0x6b20)
+ * One word (2-byte) for frame length N.
+ * N words (2-byte) containing N bits (bit 0 = 0x007f, bit 1 = 0x0081).
+ */
+ ITU, /* AMR-Wideband */
+
+ /*
+ * AMR-WB MIME/storage format, see RFC 3267 (sections 5.1 and 5.3) for details
+ */
+ MIME_IETF,
+
+ WMF, /* AMR-Narrowband */
+
+ IF2 /* AMR-Narrowband */
+
+} bitstream_format;
+
+
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef struct
+{
+ int16 prev_ft;
+ int16 prev_mode;
+} RX_State;
+
+
+typedef struct tPVAmrDecoderExternal
+{
+ /*
+ * INPUT:
+ * Pointer to the input buffer that contains the encoded bistream data.
+ * The data is filled in such that the first bit transmitted is
+ * the most-significant bit (MSB) of the first array element.
+ * The buffer is accessed in a linear fashion for speed, and the number of
+ * bytes consumed varies frame to frame. This is use for mime/ietf data
+ */
+ uint8 *pInputBuffer;
+
+ /*
+ * INPUT:
+ * Pointer to the input buffer that contains the encoded stream data.
+ * The data is filled such that the first bit transmitted is
+ * in the first int16 element.
+ * The buffer is accessed in a linear fashion for speed, and the number of
+ * bytes consumed varies frame to frame.
+ */
+ int16 *pInputSampleBuffer;
+
+ /*
+ * INPUT: (but what is pointed to is an output)
+ * Pointer to the output buffer to hold the 16-bit PCM audio samples.
+ */
+ int16 *pOutputBuffer;
+
+ /*
+ * INPUT:
+ * Number of requested output audio channels. This relieves the calling
+ * environment from having to perform stereo-to-mono or mono-to-stereo
+ * conversions.
+ */
+ int32 desiredChannels;
+
+ /*
+ * INPUT:
+ * Format type of the encoded bitstream.
+ */
+ bitstream_format input_format;
+
+ /*
+ * OUTPUT:
+ * The sampling rate decoded from the bitstream, in units of
+ * samples/second. For this release of the library this value does
+ * not change from frame to frame, but future versions will.
+ */
+ int32 samplingRate;
+
+ /*
+ * OUTPUT:
+ * This value is the bitrate in units of bits/second. IT
+ * is calculated using the number of bits consumed for the current frame,
+ * and then multiplying by the sampling_rate, divided by points in a frame.
+ * This value can changes frame to frame.
+ */
+ int32 bitRate;
+
+ /*
+ * OUTPUT:
+ * The number of channels decoded from the bitstream. The output data
+ * will have be the amount specified in the variable desiredChannels,
+ * this output is informative only, and can be ignored.
+ */
+ int32 encodedChannels;
+
+ /*
+ * OUTPUT:
+ * This value is the number of output PCM samples per channel.
+ * It is 320.
+ */
+ int16 frameLength;
+
+ /*
+ * OUTPUT:
+ * This value is the quality indicator. 1 (good) 0 (bad)
+ */
+ uint8 quality;
+
+
+ /*
+ * OUTPUT:
+ * GSM AMR NB and WB mode (i.e. bit-rate )
+ */
+ int16 mode;
+ int16 mode_old;
+
+ /*
+ * OUTPUT:
+ * GSM AMR NB and WB frame type ( speech_good, speech_bad, sid, etc.)
+ */
+ int16 frame_type;
+
+ int16 reset_flag;
+ int16 reset_flag_old;
+
+ /*
+ * OUTPUT:
+ * Decoder status
+ */
+ int32 status;
+
+ /*
+ * OUTPUT:
+ * Rx status state
+ */
+ RX_State rx_state;
+
+} tPVAmrDecoderExternal;
+
+// CDecoder_AMRInterface
+
+#ifdef __cplusplus
+
+class CDecoder_AMRInterface
+{
+ public:
+ OSCL_IMPORT_REF virtual int32 StartL(tPVAmrDecoderExternal * pExt,
+ bool aAllocateInputBuffer = false,
+ bool aAllocateOutputBuffer = false) = 0;
+
+ OSCL_IMPORT_REF virtual int32 ExecuteL(tPVAmrDecoderExternal * pExt) = 0;
+
+ OSCL_IMPORT_REF virtual int32 ResetDecoderL() = 0;
+ OSCL_IMPORT_REF virtual void StopL() = 0;
+ OSCL_IMPORT_REF virtual void TerminateDecoderL() = 0;
+};
+#endif
+
+
+#endif
+
--- /dev/null
+
+THIS IS NOT A GRANT OF PATENT RIGHTS.
+
+Google makes no representation or warranty that the codecs for which
+source code is made available hereunder are unencumbered by
+third-party patents. Those intending to use this source code in
+hardware or software products are advised that implementations of
+these codecs, including in open source software or shareware, may
+require patent licenses from the relevant patent holders.
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#ifndef OSCL_BASE_H
+#define OSCL_BASE_H
+
+#include <stdint.h>
+
+typedef int8_t int8;
+typedef uint8_t uint8;
+typedef int16_t int16;
+typedef uint16_t uint16;
+typedef int32_t int32;
+typedef uint32_t uint32;
+typedef int64_t int64;
+typedef uint64_t uint64;
+
+#define OSCL_IMPORT_REF
+#define OSCL_EXPORT_REF
+#define OSCL_UNUSED_ARG(x) (void)(x)
+
+#endif
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#ifndef OSCL_MEM_H
+#define OSCL_MEM_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#define oscl_malloc malloc
+#define oscl_free free
+#define oscl_memset memset
+#define oscl_memmove memmove
+#define oscl_memcpy memcpy
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
--- /dev/null
+CFLAGS = -Wall -pedantic -I../amrnb -I../amrwb
+CXXFLAGS = $(CFLAGS)
+LDFLAGS = -L../amrnb -L../amrwb
+
+all: amrnb-dec amrnb-enc amrwb-dec
+
+amrnb-dec: amrnb-dec.o wav.o
+ $(CXX) -o $@ $+ $(LDFLAGS) -lopencore-amrnb
+
+amrnb-enc: amrnb-enc.o
+ $(CC) -o $@ $+ $(LDFLAGS) -lm -lopencore-amrnb
+
+amrwb-dec: amrwb-dec.o wav.o
+ $(CXX) -o $@ $+ $(LDFLAGS) -lopencore-amrwb
+
+# To check that both libraries can be linked in statically at the same
+# time without duplicate symbols
+linkboth: linkboth.o
+ $(CC) -static -o $@ $+ $(LDFLAGS) -lopencore-amrnb -lopencore-amrwb
+
+clean:
+ rm -f amrnb-dec amrnb-enc amrwb-dec linkboth *.o out.wav out.amr
+
--- /dev/null
+
+noinst_PROGRAMS = amrnb-dec$(EXEEXT) amrnb-enc$(EXEEXT) amrwb-dec$(EXEEXT) linkboth$(EXEEXT)
+
+EXTRA_DIST = Makefile.alt
+
+INCLUDES = -I$(top_srcdir)/amrnb -I$(top_srcdir)/amrwb
+
+CLEANFILES = out.amr out.wav
+
+amrnb_dec_LDADD = $(top_builddir)/amrnb/libopencore-amrnb.la
+amrnb_enc_LDADD = $(top_builddir)/amrnb/libopencore-amrnb.la
+amrnb_enc_LDFLAGS = -lm
+amrwb_dec_LDADD = $(top_builddir)/amrwb/libopencore-amrwb.la
+linkboth_LDFLAGS = -static
+linkboth_LDADD = $(top_builddir)/amrnb/libopencore-amrnb.la $(top_builddir)/amrwb/libopencore-amrwb.la
+
+amrnb_dec_SOURCES = amrnb-dec.cpp wav.cpp
+amrnb_enc_SOURCES = amrnb-enc.c
+amrwb_dec_SOURCES = amrwb-dec.cpp wav.cpp
+linkboth_SOURCES = linkboth.c
+
+noinst_HEADERS = wav.h
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include "wav.h"
+extern "C" {
+#include <interf_dec.h>
+}
+
+/* From WmfDecBytesPerFrame in dec_input_format_tab.cpp */
+const int sizes[] = { 12, 13, 15, 17, 19, 20, 26, 31, 5, 6, 5, 5, 0, 0, 0, 0 };
+
+
+int main(int argc, char *argv[]) {
+ if (argc < 2) {
+ fprintf(stderr, "%s in.amr\n", argv[0]);
+ return 1;
+ }
+
+ FILE* in = fopen(argv[1], "rb");
+ if (!in) {
+ perror(argv[1]);
+ return 1;
+ }
+ char header[6];
+ int n = fread(header, 1, 6, in);
+ if (n != 6 || memcmp(header, "#!AMR\n", 6)) {
+ fprintf(stderr, "Bad header\n");
+ return 1;
+ }
+
+ WavWriter wav("out.wav", 8000, 16, 1);
+
+ void* amr = Decoder_Interface_init();
+ while (true) {
+ uint8_t buffer[500];
+ /* Read the mode byte */
+ n = fread(buffer, 1, 1, in);
+ if (n <= 0)
+ break;
+ /* Find the packet size */
+ int size = sizes[(buffer[0] >> 3) & 0x0f];
+ if (size <= 0)
+ break;
+ n = fread(buffer + 1, 1, size, in);
+ if (n != size)
+ break;
+
+ /* Decode the packet */
+ int16_t outbuffer[160];
+ Decoder_Interface_Decode(amr, buffer, outbuffer, 0);
+
+ /* Convert to little endian and write to wav */
+ uint8_t littleendian[320];
+ uint8_t* ptr = littleendian;
+ for (int i = 0; i < 160; i++) {
+ *ptr++ = (outbuffer[i] >> 0) & 0xff;
+ *ptr++ = (outbuffer[i] >> 8) & 0xff;
+ }
+ wav.writeData(littleendian, 320);
+ }
+ fclose(in);
+ Decoder_Interface_exit(amr);
+ return 0;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <math.h>
+#include <interf_enc.h>
+
+int main(int argc, char *argv[]) {
+ int i, j;
+ void* amr;
+ FILE* out;
+ int sample_pos = 0;
+
+ amr = Encoder_Interface_init(0);
+ out = fopen("out.amr", "wb");
+
+ fwrite("#!AMR\n", 1, 6, out);
+ for (i = 0; i < 1000; i++) {
+ short buf[160];
+ uint8_t outbuf[500];
+ int n;
+ for (j = 0; j < 160; j++) {
+ buf[j] = 32767*sin(440*2*3.141592654*sample_pos/8000);
+ sample_pos++;
+ }
+ n = Encoder_Interface_Encode(amr, MR475, buf, outbuf, 0);
+ fwrite(outbuf, 1, n, out);
+ }
+ fclose(out);
+ Encoder_Interface_exit(amr);
+
+ return 0;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include "wav.h"
+extern "C" {
+#include <dec_if.h>
+}
+
+/* From pvamrwbdecoder_api.h, by dividing by 8 and rounding up */
+const int sizes[] = { 17, 23, 32, 36, 40, 46, 50, 58, 60, 5, -1, -1, -1, -1, -1, -1 };
+
+int main(int argc, char *argv[]) {
+ if (argc < 2) {
+ fprintf(stderr, "%s in.amr\n", argv[0]);
+ return 1;
+ }
+
+ FILE* in = fopen(argv[1], "rb");
+ if (!in) {
+ perror(argv[1]);
+ return 1;
+ }
+ char header[9];
+ int n = fread(header, 1, 9, in);
+ if (n != 9 || memcmp(header, "#!AMR-WB\n", 9)) {
+ fprintf(stderr, "Bad header\n");
+ return 1;
+ }
+
+ WavWriter wav("out.wav", 16000, 16, 1);
+ void* amr = D_IF_init();
+ while (true) {
+ uint8_t buffer[500];
+ /* Read the mode byte */
+ n = fread(buffer, 1, 1, in);
+ if (n <= 0)
+ break;
+ /* Find the packet size */
+ int size = sizes[(buffer[0] >> 3) & 0x0f];
+ if (size <= 0)
+ break;
+ n = fread(buffer + 1, 1, size, in);
+ if (n != size)
+ break;
+
+ /* Decode the packet */
+ int16_t outbuffer[320];
+ D_IF_decode(amr, buffer, outbuffer, 0);
+
+ /* Convert to little endian and write to wav */
+ uint8_t littleendian[640];
+ uint8_t* ptr = littleendian;
+ for (int i = 0; i < 320; i++) {
+ *ptr++ = (outbuffer[i] >> 0) & 0xff;
+ *ptr++ = (outbuffer[i] >> 8) & 0xff;
+ }
+ wav.writeData(littleendian, 640);
+ }
+ fclose(in);
+ D_IF_exit(amr);
+ return 0;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <interf_dec.h>
+#include <interf_enc.h>
+#include <dec_if.h>
+
+int main(int argc, char *argv[]) {
+ void* amrnb = Decoder_Interface_init();
+ void* amrnb_enc = Encoder_Interface_init(0);
+ void* amrwb = D_IF_init();
+ Decoder_Interface_exit(amrnb);
+ Encoder_Interface_exit(amrnb_enc);
+ D_IF_exit(amrwb);
+ return 0;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#include "wav.h"
+
+void WavWriter::writeString(const char *str) {
+ fputc(str[0], wav);
+ fputc(str[1], wav);
+ fputc(str[2], wav);
+ fputc(str[3], wav);
+}
+
+void WavWriter::writeInt32(int value) {
+ fputc((value >> 0) & 0xff, wav);
+ fputc((value >> 8) & 0xff, wav);
+ fputc((value >> 16) & 0xff, wav);
+ fputc((value >> 24) & 0xff, wav);
+}
+
+void WavWriter::writeInt16(int value) {
+ fputc((value >> 0) & 0xff, wav);
+ fputc((value >> 8) & 0xff, wav);
+}
+
+void WavWriter::writeHeader(int length) {
+ writeString("RIFF");
+ writeInt32(4 + 8 + 16 + 8 + length);
+ writeString("WAVE");
+
+ writeString("fmt ");
+ writeInt32(16);
+
+ int bytesPerFrame = bitsPerSample/8*channels;
+ int bytesPerSec = bytesPerFrame*sampleRate;
+ writeInt16(1); // Format
+ writeInt16(channels); // Channels
+ writeInt32(sampleRate); // Samplerate
+ writeInt32(bytesPerSec); // Bytes per sec
+ writeInt16(bytesPerFrame); // Bytes per frame
+ writeInt16(bitsPerSample); // Bits per sample
+
+ writeString("data");
+ writeInt32(length);
+}
+
+WavWriter::WavWriter(const char *filename, int sampleRate, int bitsPerSample, int channels) {
+ wav = fopen(filename, "wb");
+ if (wav == NULL)
+ return;
+ dataLength = 0;
+ this->sampleRate = sampleRate;
+ this->bitsPerSample = bitsPerSample;
+ this->channels = channels;
+
+ writeHeader(dataLength);
+}
+
+WavWriter::~WavWriter() {
+ if (wav == NULL)
+ return;
+ fseek(wav, 0, SEEK_SET);
+ writeHeader(dataLength);
+ fclose(wav);
+}
+
+void WavWriter::writeData(const unsigned char* data, int length) {
+ if (wav == NULL)
+ return;
+ fwrite(data, length, 1, wav);
+ dataLength += length;
+}
+
--- /dev/null
+/* ------------------------------------------------------------------
+ * Copyright (C) 2009 Martin Storsjo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+
+#ifndef WAV_H
+#define WAV_H
+
+#include <stdio.h>
+
+class WavWriter {
+public:
+ WavWriter(const char *filename, int sampleRate, int bitsPerSample, int channels);
+ ~WavWriter();
+
+ void writeData(const unsigned char* data, int length);
+
+private:
+ void writeString(const char *str);
+ void writeInt32(int value);
+ void writeInt16(int value);
+
+ void writeHeader(int length);
+
+ FILE *wav;
+ int dataLength;
+
+ int sampleRate;
+ int bitsPerSample;
+ int channels;
+};
+
+#endif
+
projects / external / opencore-amr.git / commitdiff