--- /dev/null
+*.lo
+*.o
+*.swp
+*~
+.deps
+.dirstamp
+.libs
+Makefile
+Makefile.in
+_stdint.h
+aclocal.m4
+autom4te.cache
+compile
+config.guess
+config.h
+config.h.in
+config.log
+config.status
+config.sub
+configure
+depcomp
+docs/Doxyfile
+docs/doxygen-build.stamp
+docs/html
+install-sh
+libtool
+ltmain.sh
+m4/libtool.m4
+m4/ltoptions.m4
+m4/ltsugar.m4
+m4/ltversion.m4
+m4/lt~obsolete.m4
+missing
+nestegg-uninstalled.pc
+nestegg.pc
+src/.dirstamp
+src/libnestegg.la
+stamp-h1
+test/test
+include/nestegg/nestegg-stdint.h
--- /dev/null
+Matthew Gregan <kinetik@flim.org>
--- /dev/null
+Build instructions for libnestegg
+=================================
+
+0. Change directory into the source directory.
+1. Run |autoreconf --install| to generate configure.
+2. Run |./configure| to configure the build.
+3. Run |make| to build.
+4. Run |make check| to run the test suite.
--- /dev/null
+Copyright © 2010 Mozilla Foundation
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
--- /dev/null
+AUTOMAKE_OPTIONS = foreign 1.11 no-dist-gzip dist-bzip2 subdir-objects
+ACLOCAL_AMFLAGS = -I m4
+
+INCLUDES = -I$(top_srcdir)/include -I. -I$(top_srcdir)/halloc
+AM_CFLAGS = -ansi -pedantic -Wall -Wextra -Wno-long-long -O0 -g
+
+SUBDIRS = docs
+
+EXTRA_DIST = \
+ AUTHORS README LICENSE \
+ nestegg-uninstalled.pc.in \
+ m4/as-ac-expand.m4 \
+ m4/pkg.m4 \
+ m4/ax_create_stdint_h.m4 \
+ halloc/src/halloc.c \
+ halloc/halloc.h \
+ halloc/src/align.h \
+ halloc/src/hlist.h \
+ halloc/src/macros.h
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = nestegg.pc
+
+nesteggincludedir = $(includedir)/nestegg
+nestegginclude_HEADERS = include/nestegg/nestegg.h include/nestegg/nestegg-stdint.h
+
+lib_LTLIBRARIES = src/libnestegg.la
+
+src_libnestegg_la_SOURCES = \
+ src/nestegg.c \
+ halloc/src/halloc.c \
+ halloc/halloc.h \
+ halloc/src/align.h \
+ halloc/src/hlist.h \
+ halloc/src/macros.h
+
+check_PROGRAMS = test/test
+
+test_test_SOURCES = test/test.c
+test_test_LDADD = src/libnestegg.la
+
+DISTCLEANFILES = include/nestegg/nestegg-stdint.h
+
+dist-hook:
+ find $(distdir) -type d -name '.git' | xargs rm -rf
+
+debug:
+ $(MAKE) all CFLAGS="@DEBUG@"
+
+profile:
+ $(MAKE) all CFLAGS="@PROFILE@"
--- /dev/null
+See INSTALL for build instructions.
+
+Licensed under an ISC-style license. See LICENSE for details.
+
+The source under the halloc/ directory is licensed under a BSD license. See
+halloc/halloc.h for details.
--- /dev/null
+- Document when read, seek, tell callbacks are used.
+- Add an automated testsuite.
+- Test (and fix, if necessary) support for unknown sizes.
+- Test (and fix, if necessary) support for large files.
+- Read past unknown elements rather than seeking.
+- Try to handle unknown elements with unknown sizes.
+- Formalize handling of default element values.
+- Try to resynchronize stream when read_block fails so that failure to parse
+ a single block can be treated as non-fatal.
+- Make logging more useful to API users.
+- Avoid reparsing Cues and ignore any SeekHead at end of file.
+- Optionally build a Cue index as Clusters are parsed.
+- Support seeking without Cues.
+- Avoid building a list of Clusters as they are parsed and retain only the
+ last one parsed.
+- Add an asynchronous error code to struct nestegg and ensure that API calls
+ continue to fail safely one a fatal error has been returned.
+- Modify parser/data structures to provide a clean separation. Perhaps the
+ parser should return a generic tree of nodes that a second pass uses to
+ initialize the main data structures.
+- Use pool allocator for all allocations.
--- /dev/null
+dnl ------------------------------------------------
+dnl Initialization and Versioning
+dnl ------------------------------------------------
+
+AC_INIT(libnestegg,[0.1git])
+
+AC_CANONICAL_HOST
+AC_CANONICAL_TARGET
+
+AC_CONFIG_MACRO_DIR([m4])
+
+AM_CONFIG_HEADER([config.h])
+AC_CONFIG_SRCDIR([src/nestegg.c])
+AM_INIT_AUTOMAKE
+
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+dnl Library versioning
+dnl CURRENT, REVISION, AGE
+dnl - library source changed -> increment REVISION
+dnl - interfaces added/removed/changed -> increment CURRENT, REVISION = 0
+dnl - interfaces added -> increment AGE
+dnl - interfaces removed -> AGE = 0
+
+NESTEGG_CURRENT=0
+NESTEGG_REVISION=0
+NESTEGG_AGE=1
+AC_SUBST(NESTEGG_CURRENT)
+AC_SUBST(NESTEGG_REVISION)
+AC_SUBST(NESTEGG_AGE)
+
+
+dnl --------------------------------------------------
+dnl Check for programs
+dnl --------------------------------------------------
+
+dnl save $CFLAGS since AC_PROG_CC likes to insert "-g -O2"
+dnl if $CFLAGS is blank
+cflags_save="$CFLAGS"
+AC_PROG_CC
+AC_PROG_CPP
+CFLAGS="$cflags_save"
+
+AM_PROG_CC_C_O
+AC_LIBTOOL_WIN32_DLL
+AM_PROG_LIBTOOL
+
+dnl Check for doxygen
+AC_ARG_ENABLE([doc],
+ AS_HELP_STRING([--enable-doc], [Build API documentation]),
+ [ac_enable_doc=$enableval], [ac_enable_doc=auto])
+
+if test "x$ac_enable_doc" != "xno"; then
+ AC_CHECK_PROG(HAVE_DOXYGEN, doxygen, true, false)
+
+ if test "x$HAVE_DOXYGEN" = "xfalse" -a "x$ac_enable_doc" = "xyes"; then
+ AC_MSG_ERROR([*** API documentation explicitly requested but Doxygen not found])
+ fi
+else
+ HAVE_DOXYGEN=false
+fi
+AM_CONDITIONAL(HAVE_DOXYGEN,$HAVE_DOXYGEN)
+if test $HAVE_DOXYGEN = "false"; then
+ AC_MSG_WARN([*** doxygen not found, API documentation will not be built])
+fi
+
+# Generate portable stdint.h replacement
+AX_CREATE_STDINT_H(include/nestegg/nestegg-stdint.h)
+
+# Test whenever ld supports -version-script
+AC_PROG_LD
+AC_PROG_LD_GNU
+AC_MSG_CHECKING([how to control symbol export])
+
+dnl --------------------------------------------------
+dnl Do substitutions
+dnl --------------------------------------------------
+
+AC_SUBST(DEBUG)
+AC_SUBST(PROFILE)
+
+AC_OUTPUT([
+ Makefile
+ docs/Makefile
+ docs/Doxyfile
+ nestegg.pc
+ nestegg-uninstalled.pc
+])
+
+AS_AC_EXPAND(LIBDIR, ${libdir})
+AS_AC_EXPAND(INCLUDEDIR, ${includedir})
+AS_AC_EXPAND(BINDIR, ${bindir})
+AS_AC_EXPAND(DOCDIR, ${docdir})
+
+if test $HAVE_DOXYGEN = "false"; then
+ doc_build="no"
+else
+ doc_build="yes"
+fi
+
+AC_MSG_RESULT([
+------------------------------------------------------------------------
+ $PACKAGE $VERSION: Automatic configuration OK.
+
+ General configuration:
+
+ API Documentation: .......... ${doc_build}
+
+ Installation paths:
+
+ libnestegg: .................. ${LIBDIR}
+ C header files: .............. ${INCLUDEDIR}/nestegg
+ Documentation: ............... ${DOCDIR}
+
+ Building:
+
+ Type 'make' to compile $PACKAGE.
+
+ Type 'make install' to install $PACKAGE.
+
+ Example programs will be built but not installed.
+------------------------------------------------------------------------
+])
+
--- /dev/null
+# Doxyfile 1.6.2
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project
+#
+# All text after a hash (#) is considered a comment and will be ignored
+# The format is:
+# TAG = value [value, ...]
+# For lists items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (" ")
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file
+# that follow. The default is UTF-8 which is also the encoding used for all
+# text before the first occurrence of this tag. Doxygen uses libiconv (or the
+# iconv built into libc) for the transcoding. See
+# http://www.gnu.org/software/libiconv for the list of possible encodings.
+
+DOXYFILE_ENCODING = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded
+# by quotes) that should identify the project.
+
+PROJECT_NAME = @PACKAGE@
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number.
+# This could be handy for archiving the generated documentation or
+# if some version control system is used.
+
+PROJECT_NUMBER = @VERSION@
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
+# base path where the generated documentation will be put.
+# If a relative path is entered, it will be relative to the location
+# where doxygen was started. If left blank the current directory will be used.
+
+OUTPUT_DIRECTORY = .
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create
+# 4096 sub-directories (in 2 levels) under the output directory of each output
+# format and will distribute the generated files over these directories.
+# Enabling this option can be useful when feeding doxygen a huge amount of
+# source files, where putting all generated files in the same directory would
+# otherwise cause performance problems for the file system.
+
+CREATE_SUBDIRS = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# The default language is English, other supported languages are:
+# Afrikaans, Arabic, Brazilian, Catalan, Chinese, Chinese-Traditional,
+# Croatian, Czech, Danish, Dutch, Esperanto, Farsi, Finnish, French, German,
+# Greek, Hungarian, Italian, Japanese, Japanese-en (Japanese with English
+# messages), Korean, Korean-en, Lithuanian, Norwegian, Macedonian, Persian,
+# Polish, Portuguese, Romanian, Russian, Serbian, Serbian-Cyrilic, Slovak,
+# Slovene, Spanish, Swedish, Ukrainian, and Vietnamese.
+
+OUTPUT_LANGUAGE = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will
+# include brief member descriptions after the members that are listed in
+# the file and class documentation (similar to JavaDoc).
+# Set to NO to disable this.
+
+BRIEF_MEMBER_DESC = YES
+
+# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend
+# the brief description of a member or function before the detailed description.
+# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+
+REPEAT_BRIEF = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator
+# that is used to form the text in various listings. Each string
+# in this list, if found as the leading text of the brief description, will be
+# stripped from the text and the result after processing the whole list, is
+# used as the annotated text. Otherwise, the brief description is used as-is.
+# If left blank, the following values are used ("$name" is automatically
+# replaced with the name of the entity): "The $name class" "The $name widget"
+# "The $name file" "is" "provides" "specifies" "contains"
+# "represents" "a" "an" "the"
+
+ABBREVIATE_BRIEF =
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# Doxygen will generate a detailed section even if there is only a brief
+# description.
+
+ALWAYS_DETAILED_SEC = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+
+INLINE_INHERITED_MEMB = NO
+
+# If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full
+# path before files name in the file list and in the header files. If set
+# to NO the shortest path that makes the file name unique will be used.
+
+FULL_PATH_NAMES = YES
+
+# If the FULL_PATH_NAMES tag is set to YES then the STRIP_FROM_PATH tag
+# can be used to strip a user-defined part of the path. Stripping is
+# only done if one of the specified strings matches the left-hand part of
+# the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the
+# path to strip.
+
+STRIP_FROM_PATH =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of
+# the path mentioned in the documentation of a class, which tells
+# the reader which header file to include in order to use a class.
+# If left blank only the name of the header file containing the class
+# definition is used. Otherwise one should specify the include paths that
+# are normally passed to the compiler using the -I flag.
+
+STRIP_FROM_INC_PATH =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter
+# (but less readable) file names. This can be useful is your file systems
+# doesn't support long names like on DOS, Mac, or CD-ROM.
+
+SHORT_NAMES = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen
+# will interpret the first line (until the first dot) of a JavaDoc-style
+# comment as the brief description. If set to NO, the JavaDoc
+# comments will behave just like regular Qt-style comments
+# (thus requiring an explicit @brief command for a brief description.)
+
+JAVADOC_AUTOBRIEF = YES
+
+# If the QT_AUTOBRIEF tag is set to YES then Doxygen will
+# interpret the first line (until the first dot) of a Qt-style
+# comment as the brief description. If set to NO, the comments
+# will behave just like regular Qt-style comments (thus requiring
+# an explicit \brief command for a brief description.)
+
+QT_AUTOBRIEF = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make Doxygen
+# treat a multi-line C++ special comment block (i.e. a block of //! or ///
+# comments) as a brief description. This used to be the default behaviour.
+# The new default is to treat a multi-line C++ comment block as a detailed
+# description. Set this tag to YES if you prefer the old behaviour instead.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented
+# member inherits the documentation from any documented member that it
+# re-implements.
+
+INHERIT_DOCS = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce
+# a new page for each member. If set to NO, the documentation of a member will
+# be part of the file/class/namespace that contains it.
+
+SEPARATE_MEMBER_PAGES = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab.
+# Doxygen uses this value to replace tabs by spaces in code fragments.
+
+TAB_SIZE = 8
+
+# This tag can be used to specify a number of aliases that acts
+# as commands in the documentation. An alias has the form "name=value".
+# For example adding "sideeffect=\par Side Effects:\n" will allow you to
+# put the command \sideeffect (or @sideeffect) in the documentation, which
+# will result in a user-defined paragraph with heading "Side Effects:".
+# You can put \n's in the value part of an alias to insert newlines.
+
+ALIASES =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C
+# sources only. Doxygen will then generate output that is more tailored for C.
+# For instance, some of the names that are used will be different. The list
+# of all members will be omitted, etc.
+
+OPTIMIZE_OUTPUT_FOR_C = YES
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java
+# sources only. Doxygen will then generate output that is more tailored for
+# Java. For instance, namespaces will be presented as packages, qualified
+# scopes will look different, etc.
+
+OPTIMIZE_OUTPUT_JAVA = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources only. Doxygen will then generate output that is more tailored for
+# Fortran.
+
+OPTIMIZE_FOR_FORTRAN = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for
+# VHDL.
+
+OPTIMIZE_OUTPUT_VHDL = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it parses.
+# With this tag you can assign which parser to use for a given extension.
+# Doxygen has a built-in mapping, but you can override or extend it using this tag.
+# The format is ext=language, where ext is a file extension, and language is one of
+# the parsers supported by doxygen: IDL, Java, Javascript, C#, C, C++, D, PHP,
+# Objective-C, Python, Fortran, VHDL, C, C++. For instance to make doxygen treat
+# .inc files as Fortran files (default is PHP), and .f files as C (default is Fortran),
+# use: inc=Fortran f=C. Note that for custom extensions you also need to set FILE_PATTERNS otherwise the files are not read by doxygen.
+
+EXTENSION_MAPPING =
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should
+# set this tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string); v.s.
+# func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+
+BUILTIN_STL_SUPPORT = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+
+CPP_CLI_SUPPORT = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip sources only.
+# Doxygen will parse them like normal C++ but will assume all classes use public
+# instead of private inheritance when no explicit protection keyword is present.
+
+SIP_SUPPORT = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate getter
+# and setter methods for a property. Setting this option to YES (the default)
+# will make doxygen to replace the get and set methods by a property in the
+# documentation. This will only work if the methods are indeed getting or
+# setting a simple type. If this is not the case, or you want to show the
+# methods anyway, you should set this option to NO.
+
+IDL_PROPERTY_SUPPORT = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+
+DISTRIBUTE_GROUP_DOC = NO
+
+# Set the SUBGROUPING tag to YES (the default) to allow class member groups of
+# the same type (for instance a group of public functions) to be put as a
+# subgroup of that type (e.g. under the Public Functions section). Set it to
+# NO to prevent subgrouping. Alternatively, this can be done per class using
+# the \nosubgrouping command.
+
+SUBGROUPING = YES
+
+# When TYPEDEF_HIDES_STRUCT is enabled, a typedef of a struct, union, or enum
+# is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically
+# be useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+
+TYPEDEF_HIDES_STRUCT = NO
+
+# The SYMBOL_CACHE_SIZE determines the size of the internal cache use to
+# determine which symbols to keep in memory and which to flush to disk.
+# When the cache is full, less often used symbols will be written to disk.
+# For small to medium size projects (<1000 input files) the default value is
+# probably good enough. For larger projects a too small cache size can cause
+# doxygen to be busy swapping symbols to and from disk most of the time
+# causing a significant performance penality.
+# If the system has enough physical memory increasing the cache will improve the
+# performance by keeping more symbols in memory. Note that the value works on
+# a logarithmic scale so increasing the size by one will rougly double the
+# memory usage. The cache size is given by this formula:
+# 2^(16+SYMBOL_CACHE_SIZE). The valid range is 0..9, the default is 0,
+# corresponding to a cache size of 2^16 = 65536 symbols
+
+SYMBOL_CACHE_SIZE = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available.
+# Private class members and static file members will be hidden unless
+# the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES
+
+EXTRACT_ALL = NO
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class
+# will be included in the documentation.
+
+EXTRACT_PRIVATE = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file
+# will be included in the documentation.
+
+EXTRACT_STATIC = NO
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs)
+# defined locally in source files will be included in the documentation.
+# If set to NO only classes defined in header files are included.
+
+EXTRACT_LOCAL_CLASSES = YES
+
+# This flag is only useful for Objective-C code. When set to YES local
+# methods, which are defined in the implementation section but not in
+# the interface are included in the documentation.
+# If set to NO (the default) only methods in the interface are included.
+
+EXTRACT_LOCAL_METHODS = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base
+# name of the file that contains the anonymous namespace. By default
+# anonymous namespace are hidden.
+
+EXTRACT_ANON_NSPACES = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all
+# undocumented members of documented classes, files or namespaces.
+# If set to NO (the default) these members will be included in the
+# various overviews, but no documentation section is generated.
+# This option has no effect if EXTRACT_ALL is enabled.
+
+HIDE_UNDOC_MEMBERS = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy.
+# If set to NO (the default) these classes will be included in the various
+# overviews. This option has no effect if EXTRACT_ALL is enabled.
+
+HIDE_UNDOC_CLASSES = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, Doxygen will hide all
+# friend (class|struct|union) declarations.
+# If set to NO (the default) these declarations will be included in the
+# documentation.
+
+HIDE_FRIEND_COMPOUNDS = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, Doxygen will hide any
+# documentation blocks found inside the body of a function.
+# If set to NO (the default) these blocks will be appended to the
+# function's detailed documentation block.
+
+HIDE_IN_BODY_DOCS = NO
+
+# The INTERNAL_DOCS tag determines if documentation
+# that is typed after a \internal command is included. If the tag is set
+# to NO (the default) then the documentation will be excluded.
+# Set it to YES to include the internal documentation.
+
+INTERNAL_DOCS = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate
+# file names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+
+CASE_SENSE_NAMES = NO
+
+# If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen
+# will show members with their full class and namespace scopes in the
+# documentation. If set to YES the scope will be hidden.
+
+HIDE_SCOPE_NAMES = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen
+# will put a list of the files that are included by a file in the documentation
+# of that file.
+
+SHOW_INCLUDE_FILES = YES
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then Doxygen
+# will list include files with double quotes in the documentation
+# rather than with sharp brackets.
+
+FORCE_LOCAL_INCLUDES = NO
+
+# If the INLINE_INFO tag is set to YES (the default) then a tag [inline]
+# is inserted in the documentation for inline members.
+
+INLINE_INFO = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen
+# will sort the (detailed) documentation of file and class members
+# alphabetically by member name. If set to NO the members will appear in
+# declaration order.
+
+SORT_MEMBER_DOCS = NO
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the
+# brief documentation of file, namespace and class members alphabetically
+# by member name. If set to NO (the default) the members will appear in
+# declaration order.
+
+SORT_BRIEF_DOCS = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the (brief and detailed) documentation of class members so that constructors and destructors are listed first. If set to NO (the default) the constructors will appear in the respective orders defined by SORT_MEMBER_DOCS and SORT_BRIEF_DOCS. This tag will be ignored for brief docs if SORT_BRIEF_DOCS is set to NO and ignored for detailed docs if SORT_MEMBER_DOCS is set to NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the
+# hierarchy of group names into alphabetical order. If set to NO (the default)
+# the group names will appear in their defined order.
+
+SORT_GROUP_NAMES = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be
+# sorted by fully-qualified names, including namespaces. If set to
+# NO (the default), the class list will be sorted only by class name,
+# not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the
+# alphabetical list.
+
+SORT_BY_SCOPE_NAME = NO
+
+# The GENERATE_TODOLIST tag can be used to enable (YES) or
+# disable (NO) the todo list. This list is created by putting \todo
+# commands in the documentation.
+
+GENERATE_TODOLIST = YES
+
+# The GENERATE_TESTLIST tag can be used to enable (YES) or
+# disable (NO) the test list. This list is created by putting \test
+# commands in the documentation.
+
+GENERATE_TESTLIST = YES
+
+# The GENERATE_BUGLIST tag can be used to enable (YES) or
+# disable (NO) the bug list. This list is created by putting \bug
+# commands in the documentation.
+
+GENERATE_BUGLIST = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or
+# disable (NO) the deprecated list. This list is created by putting
+# \deprecated commands in the documentation.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional
+# documentation sections, marked by \if sectionname ... \endif.
+
+ENABLED_SECTIONS =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines
+# the initial value of a variable or define consists of for it to appear in
+# the documentation. If the initializer consists of more lines than specified
+# here it will be hidden. Use a value of 0 to hide initializers completely.
+# The appearance of the initializer of individual variables and defines in the
+# documentation can be controlled using \showinitializer or \hideinitializer
+# command in the documentation regardless of this setting.
+
+MAX_INITIALIZER_LINES = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated
+# at the bottom of the documentation of classes and structs. If set to YES the
+# list will mention the files that were used to generate the documentation.
+
+SHOW_USED_FILES = YES
+
+# If the sources in your project are distributed over multiple directories
+# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy
+# in the documentation. The default is NO.
+
+SHOW_DIRECTORIES = NO
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page.
+# This will remove the Files entry from the Quick Index and from the
+# Folder Tree View (if specified). The default is YES.
+
+SHOW_FILES = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the
+# Namespaces page.
+# This will remove the Namespaces entry from the Quick Index
+# and from the Folder Tree View (if specified). The default is YES.
+
+SHOW_NAMESPACES = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command <command> <input-file>, where <command> is the value of
+# the FILE_VERSION_FILTER tag, and <input-file> is the name of an input file
+# provided by doxygen. Whatever the program writes to standard output
+# is used as the file version. See the manual for examples.
+
+FILE_VERSION_FILTER =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed by
+# doxygen. The layout file controls the global structure of the generated output files
+# in an output format independent way. The create the layout file that represents
+# doxygen's defaults, run doxygen with the -l option. You can optionally specify a
+# file name after the option, if omitted DoxygenLayout.xml will be used as the name
+# of the layout file.
+
+LAYOUT_FILE =
+
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated
+# by doxygen. Possible values are YES and NO. If left blank NO is used.
+
+QUIET = YES
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated by doxygen. Possible values are YES and NO. If left blank
+# NO is used.
+
+WARNINGS = YES
+
+# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings
+# for undocumented members. If EXTRACT_ALL is set to YES then this flag will
+# automatically be disabled.
+
+WARN_IF_UNDOCUMENTED = YES
+
+# If WARN_IF_DOC_ERROR is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some
+# parameters in a documented function, or documenting parameters that
+# don't exist or using markup commands wrongly.
+
+WARN_IF_DOC_ERROR = YES
+
+# This WARN_NO_PARAMDOC option can be abled to get warnings for
+# functions that are documented, but have no documentation for their parameters
+# or return value. If set to NO (the default) doxygen will only warn about
+# wrong or incomplete parameter documentation, but not about the absence of
+# documentation.
+
+WARN_NO_PARAMDOC = YES
+
+# The WARN_FORMAT tag determines the format of the warning messages that
+# doxygen can produce. The string should contain the $file, $line, and $text
+# tags, which will be replaced by the file and line number from which the
+# warning originated and the warning text. Optionally the format may contain
+# $version, which will be replaced by the version of the file (if it could
+# be obtained via FILE_VERSION_FILTER)
+
+WARN_FORMAT = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning
+# and error messages should be written. If left blank the output is written
+# to stderr.
+
+WARN_LOGFILE =
+
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag can be used to specify the files and/or directories that contain
+# documented source files. You may enter file names like "myfile.cpp" or
+# directories like "/usr/src/myproject". Separate the files or directories
+# with spaces.
+
+INPUT = @top_srcdir@/include/nestegg
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is
+# also the default input encoding. Doxygen uses libiconv (or the iconv built
+# into libc) for the transcoding. See http://www.gnu.org/software/libiconv for
+# the list of possible encodings.
+
+INPUT_ENCODING = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
+# and *.h) to filter out the source-files in the directories. If left
+# blank the following patterns are tested:
+# *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx
+# *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.py *.f90
+
+FILE_PATTERNS =
+
+# The RECURSIVE tag can be used to turn specify whether or not subdirectories
+# should be searched for input files as well. Possible values are YES and NO.
+# If left blank NO is used.
+
+RECURSIVE = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+
+EXCLUDE =
+
+# The EXCLUDE_SYMLINKS tag can be used select whether or not files or
+# directories that are symbolic links (a Unix filesystem feature) are excluded
+# from the input.
+
+EXCLUDE_SYMLINKS = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories. Note that the wildcards are matched
+# against the file with absolute path, so to exclude all test directories
+# for example use the pattern */test/*
+
+EXCLUDE_PATTERNS =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+
+EXCLUDE_SYMBOLS =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or
+# directories that contain example code fragments that are included (see
+# the \include command).
+
+EXAMPLE_PATH =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
+# and *.h) to filter out the source-files in the directories. If left
+# blank all files are included.
+
+EXAMPLE_PATTERNS =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude
+# commands irrespective of the value of the RECURSIVE tag.
+# Possible values are YES and NO. If left blank NO is used.
+
+EXAMPLE_RECURSIVE = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or
+# directories that contain image that are included in the documentation (see
+# the \image command).
+
+IMAGE_PATH =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command <filter> <input-file>, where <filter>
+# is the value of the INPUT_FILTER tag, and <input-file> is the name of an
+# input file. Doxygen will then use the output that the filter program writes
+# to standard output.
+# If FILTER_PATTERNS is specified, this tag will be
+# ignored.
+
+INPUT_FILTER =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis.
+# Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match.
+# The filters are a list of the form:
+# pattern=filter (like *.cpp=my_cpp_filter). See INPUT_FILTER for further
+# info on how filters are used. If FILTER_PATTERNS is empty, INPUT_FILTER
+# is applied to all files.
+
+FILTER_PATTERNS =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER) will be used to filter the input files when producing source
+# files to browse (i.e. when SOURCE_BROWSER is set to YES).
+
+FILTER_SOURCE_FILES = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will
+# be generated. Documented entities will be cross-referenced with these sources.
+# Note: To get rid of all source code in the generated output, make sure also
+# VERBATIM_HEADERS is set to NO.
+
+SOURCE_BROWSER = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body
+# of functions and classes directly in the documentation.
+
+INLINE_SOURCES = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct
+# doxygen to hide any special comment blocks from generated source code
+# fragments. Normal C and C++ comments will always remain visible.
+
+STRIP_CODE_COMMENTS = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES
+# then for each documented function all documented
+# functions referencing it will be listed.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES
+# then for each documented function all documented entities
+# called/used by that function will be listed.
+
+REFERENCES_RELATION = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES (the default)
+# and SOURCE_BROWSER tag is set to YES, then the hyperlinks from
+# functions in REFERENCES_RELATION and REFERENCED_BY_RELATION lists will
+# link to the source code.
+# Otherwise they will link to the documentation.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code
+# will point to the HTML generated by the htags(1) tool instead of doxygen
+# built-in source browser. The htags tool is part of GNU's global source
+# tagging system (see http://www.gnu.org/software/global/global.html). You
+# will need version 4.8.6 or higher.
+
+USE_HTAGS = NO
+
+# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen
+# will generate a verbatim copy of the header file for each class for
+# which an include is specified. Set to NO to disable this.
+
+VERBATIM_HEADERS = YES
+
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index
+# of all compounds will be generated. Enable this if the project
+# contains a lot of classes, structs, unions or interfaces.
+
+ALPHABETICAL_INDEX = NO
+
+# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then
+# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns
+# in which this list will be split (can be a number in the range [1..20])
+
+COLS_IN_ALPHA_INDEX = 5
+
+# In case all classes in a project start with a common prefix, all
+# classes will be put under the same header in the alphabetical index.
+# The IGNORE_PREFIX tag can be used to specify one or more prefixes that
+# should be ignored while generating the index headers.
+
+IGNORE_PREFIX =
+
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES (the default) Doxygen will
+# generate HTML output.
+
+GENERATE_HTML = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `html' will be used as the default path.
+
+HTML_OUTPUT = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for
+# each generated HTML page (for example: .htm,.php,.asp). If it is left blank
+# doxygen will generate files with .html extension.
+
+HTML_FILE_EXTENSION = .html
+
+# The HTML_HEADER tag can be used to specify a personal HTML header for
+# each generated HTML page. If it is left blank doxygen will generate a
+# standard header.
+
+HTML_HEADER =
+
+# The HTML_FOOTER tag can be used to specify a personal HTML footer for
+# each generated HTML page. If it is left blank doxygen will generate a
+# standard footer.
+
+HTML_FOOTER =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading
+# style sheet that is used by each HTML page. It can be used to
+# fine-tune the look of the HTML output. If the tag is left blank doxygen
+# will generate a default style sheet. Note that doxygen will try to copy
+# the style sheet file to the HTML output directory, so don't put your own
+# stylesheet in the HTML output directory as well, or it will be erased!
+
+HTML_STYLESHEET =
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting
+# this to NO can help when comparing the output of multiple runs.
+
+HTML_TIMESTAMP = NO
+
+# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes,
+# files or namespaces will be aligned in HTML using tables. If set to
+# NO a bullet list will be used.
+
+HTML_ALIGN_MEMBERS = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded. For this to work a browser that supports
+# JavaScript and DHTML is required (for instance Mozilla 1.0+, Firefox
+# Netscape 6.0+, Internet explorer 5.0+, Konqueror, or Safari).
+
+HTML_DYNAMIC_SECTIONS = NO
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files
+# will be generated that can be used as input for Apple's Xcode 3
+# integrated development environment, introduced with OSX 10.5 (Leopard).
+# To create a documentation set, doxygen will generate a Makefile in the
+# HTML output directory. Running make will produce the docset in that
+# directory and running "make install" will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find
+# it at startup.
+# See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html for more information.
+
+GENERATE_DOCSET = NO
+
+# When GENERATE_DOCSET tag is set to YES, this tag determines the name of the
+# feed. A documentation feed provides an umbrella under which multiple
+# documentation sets from a single provider (such as a company or product suite)
+# can be grouped.
+
+DOCSET_FEEDNAME = "Doxygen generated docs"
+
+# When GENERATE_DOCSET tag is set to YES, this tag specifies a string that
+# should uniquely identify the documentation set bundle. This should be a
+# reverse domain-name style string, e.g. com.mycompany.MyDocSet. Doxygen
+# will append .docset to the name.
+
+DOCSET_BUNDLE_ID = org.doxygen.Project
+
+# If the GENERATE_HTMLHELP tag is set to YES, additional index files
+# will be generated that can be used as input for tools like the
+# Microsoft HTML help workshop to generate a compiled HTML help file (.chm)
+# of the generated HTML documentation.
+
+GENERATE_HTMLHELP = NO
+
+# If the GENERATE_HTMLHELP tag is set to YES, the CHM_FILE tag can
+# be used to specify the file name of the resulting .chm file. You
+# can add a path in front of the file if the result should not be
+# written to the html output directory.
+
+CHM_FILE =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the HHC_LOCATION tag can
+# be used to specify the location (absolute path including file name) of
+# the HTML help compiler (hhc.exe). If non-empty doxygen will try to run
+# the HTML help compiler on the generated index.hhp.
+
+HHC_LOCATION =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag
+# controls if a separate .chi index file is generated (YES) or that
+# it should be included in the master .chm file (NO).
+
+GENERATE_CHI = NO
+
+# If the GENERATE_HTMLHELP tag is set to YES, the CHM_INDEX_ENCODING
+# is used to encode HtmlHelp index (hhk), content (hhc) and project file
+# content.
+
+CHM_INDEX_ENCODING =
+
+# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag
+# controls whether a binary table of contents is generated (YES) or a
+# normal table of contents (NO) in the .chm file.
+
+BINARY_TOC = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members
+# to the contents of the HTML help documentation and to the tree view.
+
+TOC_EXPAND = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and QHP_VIRTUAL_FOLDER
+# are set, an additional index file will be generated that can be used as input for
+# Qt's qhelpgenerator to generate a Qt Compressed Help (.qch) of the generated
+# HTML documentation.
+
+GENERATE_QHP = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can
+# be used to specify the file name of the resulting .qch file.
+# The path specified is relative to the HTML output folder.
+
+QCH_FILE =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating
+# Qt Help Project output. For more information please see
+# http://doc.trolltech.com/qthelpproject.html#namespace
+
+QHP_NAMESPACE = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating
+# Qt Help Project output. For more information please see
+# http://doc.trolltech.com/qthelpproject.html#virtual-folders
+
+QHP_VIRTUAL_FOLDER = doc
+
+# If QHP_CUST_FILTER_NAME is set, it specifies the name of a custom filter to add.
+# For more information please see
+# http://doc.trolltech.com/qthelpproject.html#custom-filters
+
+QHP_CUST_FILTER_NAME =
+
+# The QHP_CUST_FILT_ATTRS tag specifies the list of the attributes of the custom filter to add.For more information please see
+# <a href="http://doc.trolltech.com/qthelpproject.html#custom-filters">Qt Help Project / Custom Filters</a>.
+
+QHP_CUST_FILTER_ATTRS =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this project's
+# filter section matches.
+# <a href="http://doc.trolltech.com/qthelpproject.html#filter-attributes">Qt Help Project / Filter Attributes</a>.
+
+QHP_SECT_FILTER_ATTRS =
+
+# If the GENERATE_QHP tag is set to YES, the QHG_LOCATION tag can
+# be used to specify the location of Qt's qhelpgenerator.
+# If non-empty doxygen will try to run qhelpgenerator on the generated
+# .qhp file.
+
+QHG_LOCATION =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files
+# will be generated, which together with the HTML files, form an Eclipse help
+# plugin. To install this plugin and make it available under the help contents
+# menu in Eclipse, the contents of the directory containing the HTML and XML
+# files needs to be copied into the plugins directory of eclipse. The name of
+# the directory within the plugins directory should be the same as
+# the ECLIPSE_DOC_ID value. After copying Eclipse needs to be restarted before the help appears.
+
+GENERATE_ECLIPSEHELP = NO
+
+# A unique identifier for the eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have
+# this name.
+
+ECLIPSE_DOC_ID = org.doxygen.Project
+
+# The DISABLE_INDEX tag can be used to turn on/off the condensed index at
+# top of each HTML page. The value NO (the default) enables the index and
+# the value YES disables it.
+
+DISABLE_INDEX = NO
+
+# This tag can be used to set the number of enum values (range [1..20])
+# that doxygen will group on one line in the generated HTML documentation.
+
+ENUM_VALUES_PER_LINE = 4
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information.
+# If the tag value is set to YES, a side panel will be generated
+# containing a tree-like index structure (just like the one that
+# is generated for HTML Help). For this to work a browser that supports
+# JavaScript, DHTML, CSS and frames is required (i.e. any modern browser).
+# Windows users are probably better off using the HTML help feature.
+
+GENERATE_TREEVIEW = NO
+
+# By enabling USE_INLINE_TREES, doxygen will generate the Groups, Directories,
+# and Class Hierarchy pages using a tree view instead of an ordered list.
+
+USE_INLINE_TREES = NO
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be
+# used to set the initial width (in pixels) of the frame in which the tree
+# is shown.
+
+TREEVIEW_WIDTH = 250
+
+# Use this tag to change the font size of Latex formulas included
+# as images in the HTML documentation. The default is 10. Note that
+# when you change the font size after a successful doxygen run you need
+# to manually remove any form_*.png images from the HTML output directory
+# to force them to be regenerated.
+
+FORMULA_FONTSIZE = 10
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for the HTML output. The underlying search engine uses javascript
+# and DHTML and should work on any modern browser. Note that when using HTML help (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET) there is already a search function so this one should
+# typically be disabled. For large projects the javascript based search engine
+# can be slow, then enabling SERVER_BASED_SEARCH may provide a better solution.
+
+SEARCHENGINE = YES
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be implemented using a PHP enabled web server instead of at the web client using Javascript. Doxygen will generate the search PHP script and index
+# file to put on the web server. The advantage of the server based approach is that it scales better to large projects and allows full text search. The disadvances is that it is more difficult to setup
+# and does not have live searching capabilities.
+
+SERVER_BASED_SEARCH = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will
+# generate Latex output.
+
+GENERATE_LATEX = NO
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `latex' will be used as the default path.
+
+LATEX_OUTPUT = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked. If left blank `latex' will be used as the default command name.
+# Note that when enabling USE_PDFLATEX this option is only used for
+# generating bitmaps for formulas in the HTML output, but not in the
+# Makefile that is written to the output directory.
+
+LATEX_CMD_NAME = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to
+# generate index for LaTeX. If left blank `makeindex' will be used as the
+# default command name.
+
+MAKEINDEX_CMD_NAME = makeindex
+
+# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact
+# LaTeX documents. This may be useful for small projects and may help to
+# save some trees in general.
+
+COMPACT_LATEX = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used
+# by the printer. Possible values are: a4, a4wide, letter, legal and
+# executive. If left blank a4wide will be used.
+
+PAPER_TYPE = a4wide
+
+# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX
+# packages that should be included in the LaTeX output.
+
+EXTRA_PACKAGES =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for
+# the generated latex document. The header should contain everything until
+# the first chapter. If it is left blank doxygen will generate a
+# standard header. Notice: only use this tag if you know what you are doing!
+
+LATEX_HEADER =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated
+# is prepared for conversion to pdf (using ps2pdf). The pdf file will
+# contain links (just like the HTML output) instead of page references
+# This makes the output suitable for online browsing using a pdf viewer.
+
+PDF_HYPERLINKS = YES
+
+# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of
+# plain latex in the generated Makefile. Set this option to YES to get a
+# higher quality PDF documentation.
+
+USE_PDFLATEX = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode.
+# command to the generated LaTeX files. This will instruct LaTeX to keep
+# running if errors occur, instead of asking the user for help.
+# This option is also used when generating formulas in HTML.
+
+LATEX_BATCHMODE = NO
+
+# If LATEX_HIDE_INDICES is set to YES then doxygen will not
+# include the index chapters (such as File Index, Compound Index, etc.)
+# in the output.
+
+LATEX_HIDE_INDICES = NO
+
+# If LATEX_SOURCE_CODE is set to YES then doxygen will include source code with syntax highlighting in the LaTeX output. Note that which sources are shown also depends on other settings such as SOURCE_BROWSER.
+
+LATEX_SOURCE_CODE = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output
+# The RTF output is optimized for Word 97 and may not look very pretty with
+# other RTF readers or editors.
+
+GENERATE_RTF = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `rtf' will be used as the default path.
+
+RTF_OUTPUT = rtf
+
+# If the COMPACT_RTF tag is set to YES Doxygen generates more compact
+# RTF documents. This may be useful for small projects and may help to
+# save some trees in general.
+
+COMPACT_RTF = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated
+# will contain hyperlink fields. The RTF file will
+# contain links (just like the HTML output) instead of page references.
+# This makes the output suitable for online browsing using WORD or other
+# programs which support those fields.
+# Note: wordpad (write) and others do not support links.
+
+RTF_HYPERLINKS = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's
+# config file, i.e. a series of assignments. You only have to provide
+# replacements, missing definitions are set to their default value.
+
+RTF_STYLESHEET_FILE =
+
+# Set optional variables used in the generation of an rtf document.
+# Syntax is similar to doxygen's config file.
+
+RTF_EXTENSIONS_FILE =
+
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES (the default) Doxygen will
+# generate man pages
+
+GENERATE_MAN = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `man' will be used as the default path.
+
+MAN_OUTPUT = man
+
+# The MAN_EXTENSION tag determines the extension that is added to
+# the generated man pages (default is the subroutine's section .3)
+
+MAN_EXTENSION = .3
+
+# If the MAN_LINKS tag is set to YES and Doxygen generates man output,
+# then it will generate one additional man file for each entity
+# documented in the real man page(s). These additional files
+# only source the real man page, but without them the man command
+# would be unable to find the correct page. The default is NO.
+
+MAN_LINKS = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES Doxygen will
+# generate an XML file that captures the structure of
+# the code including all documentation.
+
+GENERATE_XML = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be
+# put in front of it. If left blank `xml' will be used as the default path.
+
+XML_OUTPUT = xml
+
+# The XML_SCHEMA tag can be used to specify an XML schema,
+# which can be used by a validating XML parser to check the
+# syntax of the XML files.
+
+XML_SCHEMA =
+
+# The XML_DTD tag can be used to specify an XML DTD,
+# which can be used by a validating XML parser to check the
+# syntax of the XML files.
+
+XML_DTD =
+
+# If the XML_PROGRAMLISTING tag is set to YES Doxygen will
+# dump the program listings (including syntax highlighting
+# and cross-referencing information) to the XML output. Note that
+# enabling this will significantly increase the size of the XML output.
+
+XML_PROGRAMLISTING = YES
+
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will
+# generate an AutoGen Definitions (see autogen.sf.net) file
+# that captures the structure of the code including all
+# documentation. Note that this feature is still experimental
+# and incomplete at the moment.
+
+GENERATE_AUTOGEN_DEF = NO
+
+#---------------------------------------------------------------------------
+# configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES Doxygen will
+# generate a Perl module file that captures the structure of
+# the code including all documentation. Note that this
+# feature is still experimental and incomplete at the
+# moment.
+
+GENERATE_PERLMOD = NO
+
+# If the PERLMOD_LATEX tag is set to YES Doxygen will generate
+# the necessary Makefile rules, Perl scripts and LaTeX code to be able
+# to generate PDF and DVI output from the Perl module output.
+
+PERLMOD_LATEX = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be
+# nicely formatted so it can be parsed by a human reader.
+# This is useful
+# if you want to understand what is going on.
+# On the other hand, if this
+# tag is set to NO the size of the Perl module output will be much smaller
+# and Perl will parse it just the same.
+
+PERLMOD_PRETTY = YES
+
+# The names of the make variables in the generated doxyrules.make file
+# are prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX.
+# This is useful so different doxyrules.make files included by the same
+# Makefile don't overwrite each other's variables.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will
+# evaluate all C-preprocessor directives found in the sources and include
+# files.
+
+ENABLE_PREPROCESSING = YES
+
+# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro
+# names in the source code. If set to NO (the default) only conditional
+# compilation will be performed. Macro expansion can be done in a controlled
+# way by setting EXPAND_ONLY_PREDEF to YES.
+
+MACRO_EXPANSION = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES
+# then the macro expansion is limited to the macros specified with the
+# PREDEFINED and EXPAND_AS_DEFINED tags.
+
+EXPAND_ONLY_PREDEF = NO
+
+# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files
+# in the INCLUDE_PATH (see below) will be search if a #include is found.
+
+SEARCH_INCLUDES = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by
+# the preprocessor.
+
+INCLUDE_PATH =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will
+# be used.
+
+INCLUDE_FILE_PATTERNS =
+
+# The PREDEFINED tag can be used to specify one or more macro names that
+# are defined before the preprocessor is started (similar to the -D option of
+# gcc). The argument of the tag is a list of macros of the form: name
+# or name=definition (no spaces). If the definition and the = are
+# omitted =1 is assumed. To prevent a macro definition from being
+# undefined via #undef or recursively expanded use the := operator
+# instead of the = operator.
+
+PREDEFINED =
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
+# this tag can be used to specify a list of macro names that should be expanded.
+# The macro definition that is found in the sources will be used.
+# Use the PREDEFINED tag if you want to use a different macro definition.
+
+EXPAND_AS_DEFINED =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then
+# doxygen's preprocessor will remove all function-like macros that are alone
+# on a line, have an all uppercase name, and do not end with a semicolon. Such
+# function macros are typically used for boiler-plate code, and will confuse
+# the parser if not removed.
+
+SKIP_FUNCTION_MACROS = YES
+
+#---------------------------------------------------------------------------
+# Configuration::additions related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES option can be used to specify one or more tagfiles.
+# Optionally an initial location of the external documentation
+# can be added for each tagfile. The format of a tag file without
+# this location is as follows:
+#
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+#
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where "loc1" and "loc2" can be relative or absolute paths or
+# URLs. If a location is present for each tag, the installdox tool
+# does not have to be run to correct the links.
+# Note that each tag file must have a unique name
+# (where the name does NOT include the path)
+# If a tag file is not located in the directory in which doxygen
+# is run, you must also specify the path to the tagfile here.
+
+TAGFILES =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create
+# a tag file that is based on the input files it reads.
+
+GENERATE_TAGFILE =
+
+# If the ALLEXTERNALS tag is set to YES all external classes will be listed
+# in the class index. If set to NO only the inherited external classes
+# will be listed.
+
+ALLEXTERNALS = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed
+# in the modules index. If set to NO, only the current project's groups will
+# be listed.
+
+EXTERNAL_GROUPS = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of `which perl').
+
+PERL_PATH = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will
+# generate a inheritance diagram (in HTML, RTF and LaTeX) for classes with base
+# or super classes. Setting the tag to NO turns the diagrams off. Note that
+# this option is superseded by the HAVE_DOT option below. This is only a
+# fallback. It is recommended to install and use dot, since it yields more
+# powerful graphs.
+
+CLASS_DIAGRAMS = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see
+# http://www.mcternan.me.uk/mscgen/) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH =
+
+# If set to YES, the inheritance and collaboration graphs will hide
+# inheritance and usage relations if the target is undocumented
+# or is not a class.
+
+HIDE_UNDOC_RELATIONS = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz, a graph visualization
+# toolkit from AT&T and Lucent Bell Labs. The other options in this section
+# have no effect if this option is set to NO (the default)
+
+HAVE_DOT = NO
+
+# By default doxygen will write a font called FreeSans.ttf to the output
+# directory and reference it in all dot files that doxygen generates. This
+# font does not include all possible unicode characters however, so when you need
+# these (or just want a differently looking font) you can specify the font name
+# using DOT_FONTNAME. You need need to make sure dot is able to find the font,
+# which can be done by putting it in a standard location or by setting the
+# DOTFONTPATH environment variable or by setting DOT_FONTPATH to the directory
+# containing the font.
+
+DOT_FONTNAME = FreeSans
+
+# The DOT_FONTSIZE tag can be used to set the size of the font of dot graphs.
+# The default size is 10pt.
+
+DOT_FONTSIZE = 10
+
+# By default doxygen will tell dot to use the output directory to look for the
+# FreeSans.ttf font (which doxygen will put there itself). If you specify a
+# different font using DOT_FONTNAME you can set the path where dot
+# can find it using this tag.
+
+DOT_FONTPATH =
+
+# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen
+# will generate a graph for each documented class showing the direct and
+# indirect inheritance relations. Setting this tag to YES will force the
+# the CLASS_DIAGRAMS tag to NO.
+
+CLASS_GRAPH = YES
+
+# If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen
+# will generate a graph for each documented class showing the direct and
+# indirect implementation dependencies (inheritance, containment, and
+# class references variables) of the class with other documented classes.
+
+COLLABORATION_GRAPH = YES
+
+# If the GROUP_GRAPHS and HAVE_DOT tags are set to YES then doxygen
+# will generate a graph for groups, showing the direct groups dependencies
+
+GROUP_GRAPHS = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+
+UML_LOOK = NO
+
+# If set to YES, the inheritance and collaboration graphs will show the
+# relations between templates and their instances.
+
+TEMPLATE_RELATIONS = NO
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT
+# tags are set to YES then doxygen will generate a graph for each documented
+# file showing the direct and indirect include dependencies of the file with
+# other documented files.
+
+INCLUDE_GRAPH = YES
+
+# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and
+# HAVE_DOT tags are set to YES then doxygen will generate a graph for each
+# documented header file showing the documented files that directly or
+# indirectly include this file.
+
+INCLUDED_BY_GRAPH = YES
+
+# If the CALL_GRAPH and HAVE_DOT options are set to YES then
+# doxygen will generate a call dependency graph for every global function
+# or class method. Note that enabling this option will significantly increase
+# the time of a run. So in most cases it will be better to enable call graphs
+# for selected functions only using the \callgraph command.
+
+CALL_GRAPH = NO
+
+# If the CALLER_GRAPH and HAVE_DOT tags are set to YES then
+# doxygen will generate a caller dependency graph for every global function
+# or class method. Note that enabling this option will significantly increase
+# the time of a run. So in most cases it will be better to enable caller
+# graphs for selected functions only using the \callergraph command.
+
+CALLER_GRAPH = NO
+
+# If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen
+# will graphical hierarchy of all classes instead of a textual one.
+
+GRAPHICAL_HIERARCHY = YES
+
+# If the DIRECTORY_GRAPH, SHOW_DIRECTORIES and HAVE_DOT tags are set to YES
+# then doxygen will show the dependencies a directory has on other directories
+# in a graphical way. The dependency relations are determined by the #include
+# relations between the files in the directories.
+
+DIRECTORY_GRAPH = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot. Possible values are png, jpg, or gif
+# If left blank png will be used.
+
+DOT_IMAGE_FORMAT = png
+
+# The tag DOT_PATH can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+
+DOT_PATH =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the
+# \dotfile command).
+
+DOTFILE_DIRS =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of
+# nodes that will be shown in the graph. If the number of nodes in a graph
+# becomes larger than this value, doxygen will truncate the graph, which is
+# visualized by representing a node as a red box. Note that doxygen if the
+# number of direct children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note
+# that the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+
+DOT_GRAPH_MAX_NODES = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the
+# graphs generated by dot. A depth value of 3 means that only nodes reachable
+# from the root by following a path via at most 3 edges will be shown. Nodes
+# that lay further from the root node will be omitted. Note that setting this
+# option to 1 or 2 may greatly reduce the computation time needed for large
+# code bases. Also note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+
+MAX_DOT_GRAPH_DEPTH = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not
+# seem to support this out of the box. Warning: Depending on the platform used,
+# enabling this option may lead to badly anti-aliased labels on the edges of
+# a graph (i.e. they become hard to read).
+
+DOT_TRANSPARENT = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10)
+# support this, this feature is disabled by default.
+
+DOT_MULTI_TARGETS = NO
+
+# If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will
+# generate a legend page explaining the meaning of the various boxes and
+# arrows in the dot generated graphs.
+
+GENERATE_LEGEND = YES
+
+# If the DOT_CLEANUP tag is set to YES (the default) Doxygen will
+# remove the intermediate dot files that are used to generate
+# the various graphs.
+
+DOT_CLEANUP = YES
--- /dev/null
+doc_DATA = doxygen-build.stamp
+
+EXTRA_DIST = Doxyfile.in
+
+if HAVE_DOXYGEN
+doxygen-build.stamp: Doxyfile
+ doxygen
+ touch doxygen-build.stamp
+else
+doxygen-build.stamp:
+ echo "*** Warning: Doxygen not found; documentation will not be built."
+ touch doxygen-build.stamp
+endif
+
+dist_docdir = $(distdir)/libnestegg
+
+dist-hook:
+ if test -d html; then \
+ mkdir $(dist_docdir); \
+ echo -n "copying built documenation..."; \
+ cp -rp html $(dist_docdir)/html; \
+ echo "OK"; \
+ fi
+
+
+install-data-local: doxygen-build.stamp
+ $(mkinstalldirs) $(DESTDIR)$(docdir)
+ if test -d html; then \
+ cp -rp html $(DESTDIR)$(docdir)/html; \
+ fi
+
+uninstall-local:
+ rm -rf $(DESTDIR)$(docdir)
+
+clean-local:
+ if test -d html; then rm -rf html; fi
+ if test -f doxygen-build.stamp; then rm -f doxygen-build.stamp; fi
+
--- /dev/null
+halloc 1.2.1
+============
+
+ Hierarchical memory heap interface - an extension to standard
+ malloc/free interface that simplifies tasks of memory disposal
+ when allocated structures exhibit hierarchical properties.
+
+ http://swapped.cc/halloc
+=
+ To build libhalloc.a with GNU tools run
+ make
+
+ To install in /usr/include and /usr/lib
+ make install
+
+ To cleanup the build files
+ make clean
+=
+ halloc-1.2.1
+ * fixed a double-free bug in _set_allocator() as per
+ Matthew Gregan comments
+
+ * switched to using NULL instead of 0 where applicable
+
+ halloc-1.2.0
+ * added missing <string.h> include to halloc.c
+
+ * improved standard compliance thanks to the feedback
+ received from Stan Tobias. Two things were fixed -
+
+ - hblock_t structure no longer uses zero-sized 'data'
+ array, which happened to be common, but non-standard
+ extension;
+
+ - secondly, added the code to test the behaviour of
+ realloc(ptr, 0). Standard allows it NOT to act as
+ free(), in which case halloc will use its own version
+ of allocator calling free() when neccessary.
+
+ halloc-1.1.0
+ * initial public release (rewrite of hhmalloc library)
+
+=============================================================================
+Copyright (c) 2004-2010, Alex Pankratov (ap@swapped.cc). All rights reserved.
+
--- /dev/null
+/*
+ * Copyright (c) 2004-2010 Alex Pankratov. All rights reserved.
+ *
+ * Hierarchical memory allocator, 1.2.1
+ * http://swapped.cc/halloc
+ */
+
+/*
+ * The program is distributed under terms of BSD license.
+ * You can obtain the copy of the license by visiting:
+ *
+ * http://www.opensource.org/licenses/bsd-license.php
+ */
+
+#ifndef _LIBP_HALLOC_H_
+#define _LIBP_HALLOC_H_
+
+#include <stddef.h> /* size_t */
+
+/*
+ * Core API
+ */
+void * halloc (void * block, size_t len);
+void hattach(void * block, void * parent);
+
+/*
+ * standard malloc/free api
+ */
+void * h_malloc (size_t len);
+void * h_calloc (size_t n, size_t len);
+void * h_realloc(void * p, size_t len);
+void h_free (void * p);
+char * h_strdup (const char * str);
+
+/*
+ * the underlying allocator
+ */
+typedef void * (* realloc_t)(void * ptr, size_t len);
+
+extern realloc_t halloc_allocator;
+
+#endif
+
--- /dev/null
+/*
+ * Copyright (c) 2004-2010 Alex Pankratov. All rights reserved.
+ *
+ * Hierarchical memory allocator, 1.2.1
+ * http://swapped.cc/halloc
+ */
+
+/*
+ * The program is distributed under terms of BSD license.
+ * You can obtain the copy of the license by visiting:
+ *
+ * http://www.opensource.org/licenses/bsd-license.php
+ */
+
+#ifndef _LIBP_ALIGN_H_
+#define _LIBP_ALIGN_H_
+
+/*
+ * a type with the most strict alignment requirements
+ */
+union max_align
+{
+ char c;
+ short s;
+ long l;
+ int i;
+ float f;
+ double d;
+ void * v;
+ void (*q)(void);
+};
+
+typedef union max_align max_align_t;
+
+#endif
+
--- /dev/null
+/*
+ * Copyright (c) 2004i-2010 Alex Pankratov. All rights reserved.
+ *
+ * Hierarchical memory allocator, 1.2.1
+ * http://swapped.cc/halloc
+ */
+
+/*
+ * The program is distributed under terms of BSD license.
+ * You can obtain the copy of the license by visiting:
+ *
+ * http://www.opensource.org/licenses/bsd-license.php
+ */
+
+#include <stdlib.h> /* realloc */
+#include <string.h> /* memset & co */
+
+#include "halloc.h"
+#include "align.h"
+#include "hlist.h"
+
+/*
+ * block control header
+ */
+typedef struct hblock
+{
+#ifndef NDEBUG
+#define HH_MAGIC 0x20040518L
+ long magic;
+#endif
+ hlist_item_t siblings; /* 2 pointers */
+ hlist_head_t children; /* 1 pointer */
+ max_align_t data[1]; /* not allocated, see below */
+
+} hblock_t;
+
+#define sizeof_hblock offsetof(hblock_t, data)
+
+/*
+ *
+ */
+realloc_t halloc_allocator = NULL;
+
+#define allocator halloc_allocator
+
+/*
+ * static methods
+ */
+static void _set_allocator(void);
+static void * _realloc(void * ptr, size_t n);
+
+static int _relate(hblock_t * b, hblock_t * p);
+static void _free_children(hblock_t * p);
+
+/*
+ * Core API
+ */
+void * halloc(void * ptr, size_t len)
+{
+ hblock_t * p;
+
+ /* set up default allocator */
+ if (! allocator)
+ {
+ _set_allocator();
+ assert(allocator);
+ }
+
+ /* calloc */
+ if (! ptr)
+ {
+ if (! len)
+ return NULL;
+
+ p = allocator(0, len + sizeof_hblock);
+ if (! p)
+ return NULL;
+#ifndef NDEBUG
+ p->magic = HH_MAGIC;
+#endif
+ hlist_init(&p->children);
+ hlist_init_item(&p->siblings);
+
+ return p->data;
+ }
+
+ p = structof(ptr, hblock_t, data);
+ assert(p->magic == HH_MAGIC);
+
+ /* realloc */
+ if (len)
+ {
+ p = allocator(p, len + sizeof_hblock);
+ if (! p)
+ return NULL;
+
+ hlist_relink(&p->siblings);
+ hlist_relink_head(&p->children);
+
+ return p->data;
+ }
+
+ /* free */
+ _free_children(p);
+ hlist_del(&p->siblings);
+ allocator(p, 0);
+
+ return NULL;
+}
+
+void hattach(void * block, void * parent)
+{
+ hblock_t * b, * p;
+
+ if (! block)
+ {
+ assert(! parent);
+ return;
+ }
+
+ /* detach */
+ b = structof(block, hblock_t, data);
+ assert(b->magic == HH_MAGIC);
+
+ hlist_del(&b->siblings);
+
+ if (! parent)
+ return;
+
+ /* attach */
+ p = structof(parent, hblock_t, data);
+ assert(p->magic == HH_MAGIC);
+
+ /* sanity checks */
+ assert(b != p); /* trivial */
+ assert(! _relate(p, b)); /* heavy ! */
+
+ hlist_add(&p->children, &b->siblings);
+}
+
+/*
+ * malloc/free api
+ */
+void * h_malloc(size_t len)
+{
+ return halloc(0, len);
+}
+
+void * h_calloc(size_t n, size_t len)
+{
+ void * ptr = halloc(0, len*=n);
+ return ptr ? memset(ptr, 0, len) : NULL;
+}
+
+void * h_realloc(void * ptr, size_t len)
+{
+ return halloc(ptr, len);
+}
+
+void h_free(void * ptr)
+{
+ halloc(ptr, 0);
+}
+
+char * h_strdup(const char * str)
+{
+ size_t len = strlen(str);
+ char * ptr = halloc(0, len + 1);
+ return ptr ? (ptr[len] = 0, memcpy(ptr, str, len)) : NULL;
+}
+
+/*
+ * static stuff
+ */
+static void _set_allocator(void)
+{
+ void * p;
+ assert(! allocator);
+
+ /*
+ * the purpose of the test below is to check the behaviour
+ * of realloc(ptr, 0), which is defined in the standard
+ * as an implementation-specific. if it returns zero,
+ * then it's equivalent to free(). it can however return
+ * non-zero, in which case it cannot be used for freeing
+ * memory blocks and we'll need to supply our own version
+ *
+ * Thanks to Stan Tobias for pointing this tricky part out.
+ */
+ allocator = realloc;
+ if (! (p = malloc(1)))
+ /* hmm */
+ return;
+
+ if ((p = realloc(p, 0)))
+ {
+ /* realloc cannot be used as free() */
+ allocator = _realloc;
+ free(p);
+ }
+}
+
+static void * _realloc(void * ptr, size_t n)
+{
+ /*
+ * free'ing realloc()
+ */
+ if (n)
+ return realloc(ptr, n);
+ free(ptr);
+ return NULL;
+}
+
+static int _relate(hblock_t * b, hblock_t * p)
+{
+ hlist_item_t * i;
+
+ if (!b || !p)
+ return 0;
+
+ /*
+ * since there is no 'parent' pointer, which would've allowed
+ * O(log(n)) upward traversal, the check must use O(n) downward
+ * iteration of the entire hierarchy; and this can be VERY SLOW
+ */
+ hlist_for_each(i, &p->children)
+ {
+ hblock_t * q = structof(i, hblock_t, siblings);
+ if (q == b || _relate(b, q))
+ return 1;
+ }
+ return 0;
+}
+
+static void _free_children(hblock_t * p)
+{
+ hlist_item_t * i, * tmp;
+
+#ifndef NDEBUG
+ /*
+ * this catches loops in hierarchy with almost zero
+ * overhead (compared to _relate() running time)
+ */
+ assert(p && p->magic == HH_MAGIC);
+ p->magic = 0;
+#endif
+ hlist_for_each_safe(i, tmp, &p->children)
+ {
+ hblock_t * q = structof(i, hblock_t, siblings);
+ _free_children(q);
+ allocator(q, 0);
+ }
+}
+
--- /dev/null
+/*
+ * Copyright (c) 2004-2010 Alex Pankratov. All rights reserved.
+ *
+ * Hierarchical memory allocator, 1.2.1
+ * http://swapped.cc/halloc
+ */
+
+/*
+ * The program is distributed under terms of BSD license.
+ * You can obtain the copy of the license by visiting:
+ *
+ * http://www.opensource.org/licenses/bsd-license.php
+ */
+
+#ifndef _LIBP_HLIST_H_
+#define _LIBP_HLIST_H_
+
+#include <assert.h>
+#include "macros.h" /* static_inline */
+
+/*
+ * weak double-linked list w/ tail sentinel
+ */
+typedef struct hlist_head hlist_head_t;
+typedef struct hlist_item hlist_item_t;
+
+/*
+ *
+ */
+struct hlist_head
+{
+ hlist_item_t * next;
+};
+
+struct hlist_item
+{
+ hlist_item_t * next;
+ hlist_item_t ** prev;
+};
+
+/*
+ * shared tail sentinel
+ */
+struct hlist_item hlist_null;
+
+/*
+ *
+ */
+#define __hlist_init(h) { &hlist_null }
+#define __hlist_init_item(i) { &hlist_null, &(i).next }
+
+static_inline void hlist_init(hlist_head_t * h);
+static_inline void hlist_init_item(hlist_item_t * i);
+
+/* static_inline void hlist_purge(hlist_head_t * h); */
+
+/* static_inline bool_t hlist_empty(const hlist_head_t * h); */
+
+/* static_inline hlist_item_t * hlist_head(const hlist_head_t * h); */
+
+/* static_inline hlist_item_t * hlist_next(const hlist_item_t * i); */
+/* static_inline hlist_item_t * hlist_prev(const hlist_item_t * i,
+ const hlist_head_t * h); */
+
+static_inline void hlist_add(hlist_head_t * h, hlist_item_t * i);
+
+/* static_inline void hlist_add_prev(hlist_item_t * l, hlist_item_t * i); */
+/* static_inline void hlist_add_next(hlist_item_t * l, hlist_item_t * i); */
+
+static_inline void hlist_del(hlist_item_t * i);
+
+static_inline void hlist_relink(hlist_item_t * i);
+static_inline void hlist_relink_head(hlist_head_t * h);
+
+#define hlist_for_each(i, h) \
+ for (i = (h)->next; i != &hlist_null; i = i->next)
+
+#define hlist_for_each_safe(i, tmp, h) \
+ for (i = (h)->next, tmp = i->next; \
+ i!= &hlist_null; \
+ i = tmp, tmp = i->next)
+
+/*
+ * static
+ */
+static_inline void hlist_init(hlist_head_t * h)
+{
+ assert(h);
+ h->next = &hlist_null;
+}
+
+static_inline void hlist_init_item(hlist_item_t * i)
+{
+ assert(i);
+ i->prev = &i->next;
+ i->next = &hlist_null;
+}
+
+static_inline void hlist_add(hlist_head_t * h, hlist_item_t * i)
+{
+ hlist_item_t * next;
+ assert(h && i);
+
+ next = i->next = h->next;
+ next->prev = &i->next;
+ h->next = i;
+ i->prev = &h->next;
+}
+
+static_inline void hlist_del(hlist_item_t * i)
+{
+ hlist_item_t * next;
+ assert(i);
+
+ next = i->next;
+ next->prev = i->prev;
+ *i->prev = next;
+
+ hlist_init_item(i);
+}
+
+static_inline void hlist_relink(hlist_item_t * i)
+{
+ assert(i);
+ *i->prev = i;
+ i->next->prev = &i->next;
+}
+
+static_inline void hlist_relink_head(hlist_head_t * h)
+{
+ assert(h);
+ h->next->prev = &h->next;
+}
+
+#endif
+
--- /dev/null
+/*
+ * Copyright (c) 2004-2010 Alex Pankratov. All rights reserved.
+ *
+ * Hierarchical memory allocator, 1.2.1
+ * http://swapped.cc/halloc
+ */
+
+/*
+ * The program is distributed under terms of BSD license.
+ * You can obtain the copy of the license by visiting:
+ *
+ * http://www.opensource.org/licenses/bsd-license.php
+ */
+
+#ifndef _LIBP_MACROS_H_
+#define _LIBP_MACROS_H_
+
+#include <stddef.h> /* offsetof */
+
+/*
+ restore pointer to the structure by a pointer to its field
+ */
+#define structof(p,t,f) ((t*)(- offsetof(t,f) + (char*)(p)))
+
+/*
+ * redefine for the target compiler
+ */
+#ifdef _WIN32
+#define static_inline static __inline
+#else
+#define static_inline static __inline__
+#endif
+
+
+#endif
+
--- /dev/null
+/*
+ * Copyright © 2010 Mozilla Foundation
+ *
+ * This program is made available under an ISC-style license. See the
+ * accompanying file LICENSE for details.
+ */
+#ifndef NESTEGG_671cac2a_365d_ed69_d7a3_4491d3538d79
+#define NESTEGG_671cac2a_365d_ed69_d7a3_4491d3538d79
+
+#include <nestegg/nestegg-stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** @mainpage
+
+ @section intro Introduction
+
+ This is the documentation fot the <tt>libnestegg</tt> C API.
+ <tt>libnestegg</tt> is a demultiplexing library for <a
+ href="http://www.matroska.org/">Matroska</a> and <a
+ href="http://www.webmproject.org/">WebMedia</a> media files.
+
+ @section example Example code
+
+ @code
+ nestegg * demux_ctx;
+ nestegg_init(&demux_ctx, io, NULL);
+
+ nestegg_packet * pkt;
+ while ((r = nestegg_read_packet(demux_ctx, &pkt)) > 0) {
+ unsigned int track;
+
+ nestegg_packet_track(pkt, &track);
+
+ // This example decodes the first track only.
+ if (track == 0) {
+ unsigned int chunk, chunks;
+
+ nestegg_packet_count(pkt, &chunks);
+
+ // Decode each chunk of data.
+ for (chunk = 0; chunk < chunks; ++chunk) {
+ unsigned char * data;
+ size_t data_size;
+
+ nestegg_packet_data(pkt, chunk, &data, &data_size);
+
+ example_codec_decode(codec_ctx, data, data_size);
+ }
+ }
+
+ nestegg_free_packet(pkt);
+ }
+
+ nestegg_destroy(demux_ctx);
+ @endcode
+*/
+
+
+/** @file
+ The <tt>libnestegg</tt> C API. */
+
+#define NESTEGG_TRACK_VIDEO 0 /**< Track is of type video. */
+#define NESTEGG_TRACK_AUDIO 1 /**< Track is of type audio. */
+
+#define NESTEGG_CODEC_VP8 0 /**< Track uses Google On2 VP8 codec. */
+#define NESTEGG_CODEC_VORBIS 1 /**< Track uses Xiph Vorbis codec. */
+
+#define NESTEGG_SEEK_SET 0 /**< Seek offset relative to beginning of stream. */
+#define NESTEGG_SEEK_CUR 1 /**< Seek offset relative to current position in stream. */
+#define NESTEGG_SEEK_END 2 /**< Seek offset relative to end of stream. */
+
+#define NESTEGG_LOG_DEBUG 1 /**< Debug level log message. */
+#define NESTEGG_LOG_INFO 10 /**< Informational level log message. */
+#define NESTEGG_LOG_WARNING 100 /**< Warning level log message. */
+#define NESTEGG_LOG_ERROR 1000 /**< Error level log message. */
+#define NESTEGG_LOG_CRITICAL 10000 /**< Critical level log message. */
+
+typedef struct nestegg nestegg; /**< Opaque handle referencing the stream state. */
+typedef struct nestegg_packet nestegg_packet; /**< Opaque handle referencing a packet of data. */
+
+/** User supplied IO context. */
+typedef struct {
+ /** User supplied read callback.
+ @param buffer Buffer to read data into.
+ @param length Length of supplied buffer in bytes.
+ @param userdata The #userdata supplied by the user.
+ @retval 1 Read succeeded.
+ @retval 0 End of stream.
+ @retval -1 Error. */
+ int (* read)(void * buffer, size_t length, void * userdata);
+
+ /** User supplied seek callback.
+ @param offset Offset within the stream to seek to.
+ @param whence Seek direction. One of #NESTEGG_SEEK_SET,
+ #NESTEGG_SEEK_CUR, or #NESTEGG_SEEK_END.
+ @param userdata The #userdata supplied by the user.
+ @retval 0 Seek succeeded.
+ @retval -1 Error. */
+ int (* seek)(int64_t offset, int whence, void * userdata);
+
+ /** User supplied tell callback.
+ @param userdata The #userdata supplied by the user.
+ @returns Current position within the stream.
+ @retval -1 Error. */
+ int64_t (* tell)(void * userdata);
+
+ /** User supplied pointer to be passed to the IO callbacks. */
+ void * userdata;
+} nestegg_io;
+
+/** Parameters specific to a video track. */
+typedef struct {
+ unsigned int width; /**< Width of the video frame in pixels. */
+ unsigned int height; /**< Height of the video frame in pixels. */
+ unsigned int display_width; /**< Display width of the video frame in pixels. */
+ unsigned int display_height; /**< Display height of the video frame in pixels. */
+ unsigned int crop_bottom; /**< Pixels to crop from the bottom of the frame. */
+ unsigned int crop_top; /**< Pixels to crop from the top of the frame. */
+ unsigned int crop_left; /**< Pixels to crop from the left of the frame. */
+ unsigned int crop_right; /**< Pixels to crop from the right of the frame. */
+} nestegg_video_params;
+
+/** Parameters specific to an audio track. */
+typedef struct {
+ double rate; /**< Sampling rate in Hz. */
+ unsigned int channels; /**< Number of audio channels. */
+ unsigned int depth; /**< Bits per sample. */
+} nestegg_audio_params;
+
+/** Logging callback function pointer. */
+typedef void (* nestegg_log)(nestegg * context, unsigned int severity, char const * format, ...);
+
+/** Initialize a nestegg context. During initialization the parser will
+ read forward in the stream processing all elements until the first
+ block of media is reached. All track metadata has been processed at this point.
+ @param context Storage for the new nestegg context. @see nestegg_destroy
+ @param io User supplied IO context.
+ @param callback Optional logging callback function pointer. May be NULL.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_init(nestegg ** context, nestegg_io io, nestegg_log callback);
+
+/** Destroy a nestegg context and free associated memory.
+ @param context #nestegg context to be freed. @see nestegg_init */
+void nestegg_destroy(nestegg * context);
+
+/** Query the duration of the media stream in nanoseconds.
+ @param context Stream context initialized by #nestegg_init.
+ @param duration Storage for the queried duration.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_duration(nestegg * context, uint64_t * duration);
+
+/** Query the tstamp scale of the media stream in nanoseconds.
+ Timecodes presented by nestegg have been scaled by this value
+ before presentation to the caller.
+ @param context Stream context initialized by #nestegg_init.
+ @param scale Storage for the queried scale factor.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_tstamp_scale(nestegg * context, uint64_t * scale);
+
+/** Query the number of tracks in the media stream.
+ @param context Stream context initialized by #nestegg_init.
+ @param tracks Storage for the queried track count.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_track_count(nestegg * context, unsigned int * tracks);
+
+/** Seek @a track to @a tstamp. Stream seek will terminate at the earliest
+ key point in the stream at or before @a tstamp. Other tracks in the
+ stream will output packets with unspecified but nearby timestamps.
+ @param context Stream context initialized by #nestegg_init.
+ @param track Zero based track number.
+ @param tstamp Absolute timestamp in nanoseconds.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_track_seek(nestegg * context, unsigned int track, uint64_t tstamp);
+
+/** Query the type specified by @a track.
+ @param context Stream context initialized by #nestegg_init.
+ @param track Zero based track number.
+ @retval #NESTEGG_TRACK_VIDEO Track type is video.
+ @retval #NESTEGG_TRACK_AUDIO Track type is audio.
+ @retval -1 Error. */
+int nestegg_track_type(nestegg * context, unsigned int track);
+
+/** Query the codec ID specified by @a track.
+ @param context Stream context initialized by #nestegg_init.
+ @param track Zero based track number.
+ @retval #NESTEGG_CODEC_VP8 Track codec is VP8.
+ @retval #NESTEGG_CODEC_VORBIS Track codec is Vorbis.
+ @retval -1 Error. */
+int nestegg_track_codec_id(nestegg * context, unsigned int track);
+
+/** Query the number of codec initialization chunks for @a track. Each
+ chunk of data should be passed to the codec initialization functions in
+ the order returned.
+ @param context Stream context initialized by #nestegg_init.
+ @param track Zero based track number.
+ @param count Storage for the queried chunk count.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_track_codec_data_count(nestegg * context, unsigned int track,
+ unsigned int * count);
+
+/** Get a pointer to chunk number @a item of codec initialization data for
+ @a track.
+ @param context Stream context initialized by #nestegg_init.
+ @param track Zero based track number.
+ @param item Zero based chunk item number.
+ @param data Storage for the queried data pointer.
+ The data is owned by the #nestegg context.
+ @param length Storage for the queried data size.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_track_codec_data(nestegg * context, unsigned int track, unsigned int item,
+ unsigned char ** data, size_t * length);
+
+/** Query the video parameters specified by @a track.
+ @param context Stream context initialized by #nestegg_init.
+ @param track Zero based track number.
+ @param params Storage for the queried video parameters.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_track_video_params(nestegg * context, unsigned int track,
+ nestegg_video_params * params);
+
+/** Query the audio parameters specified by @a track.
+ @param context Stream context initialized by #nestegg_init.
+ @param track Zero based track number.
+ @param params Storage for the queried audio parameters.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_track_audio_params(nestegg * context, unsigned int track,
+ nestegg_audio_params * params);
+
+/** Read a packet of media data. A packet consists of one or more chunks of
+ data associated with a single track. nestegg_read_packet should be
+ called in a loop while the return value is 1 to drive the stream parser
+ forward. @see nestegg_free_packet
+ @param context Context returned by #nestegg_init.
+ @param packet Storage for the returned nestegg_packet.
+ @retval 1 Additional packets may be read in subsequent calls.
+ @retval 0 End of stream.
+ @retval -1 Error. */
+int nestegg_read_packet(nestegg * context, nestegg_packet ** packet);
+
+/** Destroy a nestegg_packet and free associated memory.
+ @param packet #nestegg_packet to be freed. @see nestegg_read_packet */
+void nestegg_free_packet(nestegg_packet * packet);
+
+/** Query the track number of @a packet.
+ @param packet Packet initialized by #nestegg_read_packet.
+ @param track Storage for the queried zero based track index.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_packet_track(nestegg_packet * packet, unsigned int * track);
+
+/** Query the time stamp in nanoseconds of @a packet.
+ @param packet Packet initialized by #nestegg_read_packet.
+ @param tstamp Storage for the queried timestamp in nanoseconds.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_packet_tstamp(nestegg_packet * packet, uint64_t * tstamp);
+
+/** Query the number of data chunks contained in @a packet.
+ @param packet Packet initialized by #nestegg_read_packet.
+ @param count Storage for the queried timestamp in nanoseconds.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_packet_count(nestegg_packet * packet, unsigned int * count);
+
+/** Get a pointer to chunk number @a item of packet data.
+ @param packet Packet initialized by #nestegg_read_packet.
+ @param item Zero based chunk item number.
+ @param data Storage for the queried data pointer.
+ The data is owned by the #nestegg_packet packet.
+ @param length Storage for the queried data size.
+ @retval 0 Success.
+ @retval -1 Error. */
+int nestegg_packet_data(nestegg_packet * packet, unsigned int item,
+ unsigned char ** data, size_t * length);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NESTEGG_671cac2a_365d_ed69_d7a3_4491d3538d79 */
--- /dev/null
+dnl as-ac-expand.m4 0.2.0
+dnl autostars m4 macro for expanding directories using configure's prefix
+dnl thomas@apestaart.org
+
+dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)
+dnl example
+dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
+dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local
+
+AC_DEFUN([AS_AC_EXPAND],
+[
+ EXP_VAR=[$1]
+ FROM_VAR=[$2]
+
+ dnl first expand prefix and exec_prefix if necessary
+ prefix_save=$prefix
+ exec_prefix_save=$exec_prefix
+
+ dnl if no prefix given, then use /usr/local, the default prefix
+ if test "x$prefix" = "xNONE"; then
+ prefix="$ac_default_prefix"
+ fi
+ dnl if no exec_prefix given, then use prefix
+ if test "x$exec_prefix" = "xNONE"; then
+ exec_prefix=$prefix
+ fi
+
+ full_var="$FROM_VAR"
+ dnl loop until it doesn't change anymore
+ while true; do
+ new_full_var="`eval echo $full_var`"
+ if test "x$new_full_var" = "x$full_var"; then break; fi
+ full_var=$new_full_var
+ done
+
+ dnl clean up
+ full_var=$new_full_var
+ AC_SUBST([$1], "$full_var")
+
+ dnl restore prefix and exec_prefix
+ prefix=$prefix_save
+ exec_prefix=$exec_prefix_save
+])
--- /dev/null
+dnl @synopsis AX_CREATE_STDINT_H [( HEADER-TO-GENERATE [, HEDERS-TO-CHECK])]
+dnl
+dnl the "ISO C9X: 7.18 Integer types <stdint.h>" section requires the
+dnl existence of an include file <stdint.h> that defines a set of
+dnl typedefs, especially uint8_t,int32_t,uintptr_t. Many older
+dnl installations will not provide this file, but some will have the
+dnl very same definitions in <inttypes.h>. In other enviroments we can
+dnl use the inet-types in <sys/types.h> which would define the typedefs
+dnl int8_t and u_int8_t respectivly.
+dnl
+dnl This macros will create a local "_stdint.h" or the headerfile given
+dnl as an argument. In many cases that file will just "#include
+dnl <stdint.h>" or "#include <inttypes.h>", while in other environments
+dnl it will provide the set of basic 'stdint's definitions/typedefs:
+dnl
+dnl int8_t,uint8_t,int16_t,uint16_t,int32_t,uint32_t,intptr_t,uintptr_t
+dnl int_least32_t.. int_fast32_t.. intmax_t
+dnl
+dnl which may or may not rely on the definitions of other files, or
+dnl using the AC_CHECK_SIZEOF macro to determine the actual sizeof each
+dnl type.
+dnl
+dnl if your header files require the stdint-types you will want to
+dnl create an installable file mylib-int.h that all your other
+dnl installable header may include. So if you have a library package
+dnl named "mylib", just use
+dnl
+dnl AX_CREATE_STDINT_H(mylib-int.h)
+dnl
+dnl in configure.ac and go to install that very header file in
+dnl Makefile.am along with the other headers (mylib.h) - and the
+dnl mylib-specific headers can simply use "#include <mylib-int.h>" to
+dnl obtain the stdint-types.
+dnl
+dnl Remember, if the system already had a valid <stdint.h>, the
+dnl generated file will include it directly. No need for fuzzy
+dnl HAVE_STDINT_H things... (oops, GCC 4.2.x has deliberatly disabled
+dnl its stdint.h for non-c99 compilation and the c99-mode is not the
+dnl default. Therefore this macro will not use the compiler's stdint.h
+dnl - please complain to the GCC developers).
+dnl
+dnl @category C
+dnl @author Guido U. Draheim <guidod@gmx.de>
+dnl @version 2006-10-13
+dnl @license GPLWithACException
+
+AC_DEFUN([AX_CHECK_DATA_MODEL],[
+ AC_CHECK_SIZEOF(char)
+ AC_CHECK_SIZEOF(short)
+ AC_CHECK_SIZEOF(int)
+ AC_CHECK_SIZEOF(long)
+ AC_CHECK_SIZEOF(void*)
+ ac_cv_char_data_model=""
+ ac_cv_char_data_model="$ac_cv_char_data_model$ac_cv_sizeof_char"
+ ac_cv_char_data_model="$ac_cv_char_data_model$ac_cv_sizeof_short"
+ ac_cv_char_data_model="$ac_cv_char_data_model$ac_cv_sizeof_int"
+ ac_cv_long_data_model=""
+ ac_cv_long_data_model="$ac_cv_long_data_model$ac_cv_sizeof_int"
+ ac_cv_long_data_model="$ac_cv_long_data_model$ac_cv_sizeof_long"
+ ac_cv_long_data_model="$ac_cv_long_data_model$ac_cv_sizeof_voidp"
+ AC_MSG_CHECKING([data model])
+ case "$ac_cv_char_data_model/$ac_cv_long_data_model" in
+ 122/242) ac_cv_data_model="IP16" ; n="standard 16bit machine" ;;
+ 122/244) ac_cv_data_model="LP32" ; n="standard 32bit machine" ;;
+ 122/*) ac_cv_data_model="i16" ; n="unusual int16 model" ;;
+ 124/444) ac_cv_data_model="ILP32" ; n="standard 32bit unixish" ;;
+ 124/488) ac_cv_data_model="LP64" ; n="standard 64bit unixish" ;;
+ 124/448) ac_cv_data_model="LLP64" ; n="unusual 64bit unixish" ;;
+ 124/*) ac_cv_data_model="i32" ; n="unusual int32 model" ;;
+ 128/888) ac_cv_data_model="ILP64" ; n="unusual 64bit numeric" ;;
+ 128/*) ac_cv_data_model="i64" ; n="unusual int64 model" ;;
+ 222/*2) ac_cv_data_model="DSP16" ; n="strict 16bit dsptype" ;;
+ 333/*3) ac_cv_data_model="DSP24" ; n="strict 24bit dsptype" ;;
+ 444/*4) ac_cv_data_model="DSP32" ; n="strict 32bit dsptype" ;;
+ 666/*6) ac_cv_data_model="DSP48" ; n="strict 48bit dsptype" ;;
+ 888/*8) ac_cv_data_model="DSP64" ; n="strict 64bit dsptype" ;;
+ 222/*|333/*|444/*|666/*|888/*) :
+ ac_cv_data_model="iDSP" ; n="unusual dsptype" ;;
+ *) ac_cv_data_model="none" ; n="very unusual model" ;;
+ esac
+ AC_MSG_RESULT([$ac_cv_data_model ($ac_cv_long_data_model, $n)])
+])
+
+dnl AX_CHECK_HEADER_STDINT_X([HEADERLIST][,ACTION-IF])
+AC_DEFUN([AX_CHECK_HEADER_STDINT_X],[
+AC_CACHE_CHECK([for stdint uintptr_t], [ac_cv_header_stdint_x],[
+ ac_cv_header_stdint_x="" # the 1997 typedefs (inttypes.h)
+ AC_MSG_RESULT([(..)])
+ for i in m4_ifval([$1],[$1],[stdint.h inttypes.h sys/inttypes.h sys/types.h])
+ do
+ unset ac_cv_type_uintptr_t
+ unset ac_cv_type_uint64_t
+ AC_CHECK_TYPE(uintptr_t,[ac_cv_header_stdint_x=$i],continue,[#include <$i>])
+ AC_CHECK_TYPE(uint64_t,[and64="/uint64_t"],[and64=""],[#include<$i>])
+ m4_ifvaln([$1],[$1]) break
+ done
+ AC_MSG_CHECKING([for stdint uintptr_t])
+ ])
+])
+
+AC_DEFUN([AX_CHECK_HEADER_STDINT_O],[
+AC_CACHE_CHECK([for stdint uint32_t], [ac_cv_header_stdint_o],[
+ ac_cv_header_stdint_o="" # the 1995 typedefs (sys/inttypes.h)
+ AC_MSG_RESULT([(..)])
+ for i in m4_ifval([$1],[$1],[inttypes.h sys/inttypes.h sys/types.h stdint.h])
+ do
+ unset ac_cv_type_uint32_t
+ unset ac_cv_type_uint64_t
+ AC_CHECK_TYPE(uint32_t,[ac_cv_header_stdint_o=$i],continue,[#include <$i>])
+ AC_CHECK_TYPE(uint64_t,[and64="/uint64_t"],[and64=""],[#include<$i>])
+ m4_ifvaln([$1],[$1]) break
+ break;
+ done
+ AC_MSG_CHECKING([for stdint uint32_t])
+ ])
+])
+
+AC_DEFUN([AX_CHECK_HEADER_STDINT_U],[
+AC_CACHE_CHECK([for stdint u_int32_t], [ac_cv_header_stdint_u],[
+ ac_cv_header_stdint_u="" # the BSD typedefs (sys/types.h)
+ AC_MSG_RESULT([(..)])
+ for i in m4_ifval([$1],[$1],[sys/types.h inttypes.h sys/inttypes.h]) ; do
+ unset ac_cv_type_u_int32_t
+ unset ac_cv_type_u_int64_t
+ AC_CHECK_TYPE(u_int32_t,[ac_cv_header_stdint_u=$i],continue,[#include <$i>])
+ AC_CHECK_TYPE(u_int64_t,[and64="/u_int64_t"],[and64=""],[#include<$i>])
+ m4_ifvaln([$1],[$1]) break
+ break;
+ done
+ AC_MSG_CHECKING([for stdint u_int32_t])
+ ])
+])
+
+AC_DEFUN([AX_CREATE_STDINT_H],
+[# ------ AX CREATE STDINT H -------------------------------------
+AC_MSG_CHECKING([for stdint types])
+ac_stdint_h=`echo ifelse($1, , _stdint.h, $1)`
+# try to shortcircuit - if the default include path of the compiler
+# can find a "stdint.h" header then we assume that all compilers can.
+AC_CACHE_VAL([ac_cv_header_stdint_t],[
+old_CXXFLAGS="$CXXFLAGS" ; CXXFLAGS=""
+old_CPPFLAGS="$CPPFLAGS" ; CPPFLAGS=""
+old_CFLAGS="$CFLAGS" ; CFLAGS=""
+AC_TRY_COMPILE([#include <stdint.h>],[int_least32_t v = 0;],
+[ac_cv_stdint_result="(assuming C99 compatible system)"
+ ac_cv_header_stdint_t="stdint.h"; ],
+[ac_cv_header_stdint_t=""])
+if test "$GCC" = "yes" && test ".$ac_cv_header_stdint_t" = "."; then
+CFLAGS="-std=c99"
+AC_TRY_COMPILE([#include <stdint.h>],[int_least32_t v = 0;],
+[AC_MSG_WARN(your GCC compiler has a defunct stdint.h for its default-mode)])
+fi
+CXXFLAGS="$old_CXXFLAGS"
+CPPFLAGS="$old_CPPFLAGS"
+CFLAGS="$old_CFLAGS" ])
+
+v="... $ac_cv_header_stdint_h"
+if test "$ac_stdint_h" = "stdint.h" ; then
+ AC_MSG_RESULT([(are you sure you want them in ./stdint.h?)])
+elif test "$ac_stdint_h" = "inttypes.h" ; then
+ AC_MSG_RESULT([(are you sure you want them in ./inttypes.h?)])
+elif test "_$ac_cv_header_stdint_t" = "_" ; then
+ AC_MSG_RESULT([(putting them into $ac_stdint_h)$v])
+else
+ ac_cv_header_stdint="$ac_cv_header_stdint_t"
+ AC_MSG_RESULT([$ac_cv_header_stdint (shortcircuit)])
+fi
+
+if test "_$ac_cv_header_stdint_t" = "_" ; then # can not shortcircuit..
+
+dnl .....intro message done, now do a few system checks.....
+dnl btw, all old CHECK_TYPE macros do automatically "DEFINE" a type,
+dnl therefore we use the autoconf implementation detail CHECK_TYPE_NEW
+dnl instead that is triggered with 3 or more arguments (see types.m4)
+
+inttype_headers=`echo $2 | sed -e 's/,/ /g'`
+
+ac_cv_stdint_result="(no helpful system typedefs seen)"
+AX_CHECK_HEADER_STDINT_X(dnl
+ stdint.h inttypes.h sys/inttypes.h $inttype_headers,
+ ac_cv_stdint_result="(seen uintptr_t$and64 in $i)")
+
+if test "_$ac_cv_header_stdint_x" = "_" ; then
+AX_CHECK_HEADER_STDINT_O(dnl,
+ inttypes.h sys/inttypes.h stdint.h $inttype_headers,
+ ac_cv_stdint_result="(seen uint32_t$and64 in $i)")
+fi
+
+if test "_$ac_cv_header_stdint_x" = "_" ; then
+if test "_$ac_cv_header_stdint_o" = "_" ; then
+AX_CHECK_HEADER_STDINT_U(dnl,
+ sys/types.h inttypes.h sys/inttypes.h $inttype_headers,
+ ac_cv_stdint_result="(seen u_int32_t$and64 in $i)")
+fi fi
+
+dnl if there was no good C99 header file, do some typedef checks...
+if test "_$ac_cv_header_stdint_x" = "_" ; then
+ AC_MSG_CHECKING([for stdint datatype model])
+ AC_MSG_RESULT([(..)])
+ AX_CHECK_DATA_MODEL
+fi
+
+if test "_$ac_cv_header_stdint_x" != "_" ; then
+ ac_cv_header_stdint="$ac_cv_header_stdint_x"
+elif test "_$ac_cv_header_stdint_o" != "_" ; then
+ ac_cv_header_stdint="$ac_cv_header_stdint_o"
+elif test "_$ac_cv_header_stdint_u" != "_" ; then
+ ac_cv_header_stdint="$ac_cv_header_stdint_u"
+else
+ ac_cv_header_stdint="stddef.h"
+fi
+
+AC_MSG_CHECKING([for extra inttypes in chosen header])
+AC_MSG_RESULT([($ac_cv_header_stdint)])
+dnl see if int_least and int_fast types are present in _this_ header.
+unset ac_cv_type_int_least32_t
+unset ac_cv_type_int_fast32_t
+AC_CHECK_TYPE(int_least32_t,,,[#include <$ac_cv_header_stdint>])
+AC_CHECK_TYPE(int_fast32_t,,,[#include<$ac_cv_header_stdint>])
+AC_CHECK_TYPE(intmax_t,,,[#include <$ac_cv_header_stdint>])
+
+fi # shortcircut to system "stdint.h"
+# ------------------ PREPARE VARIABLES ------------------------------
+if test "$GCC" = "yes" ; then
+ac_cv_stdint_message="using gnu compiler "`$CC --version | head -1`
+else
+ac_cv_stdint_message="using $CC"
+fi
+
+AC_MSG_RESULT([make use of $ac_cv_header_stdint in $ac_stdint_h dnl
+$ac_cv_stdint_result])
+
+dnl -----------------------------------------------------------------
+# ----------------- DONE inttypes.h checks START header -------------
+AC_CONFIG_COMMANDS([$ac_stdint_h],[
+AC_MSG_NOTICE(creating $ac_stdint_h : $_ac_stdint_h)
+ac_stdint=$tmp/_stdint.h
+
+echo "#ifndef" $_ac_stdint_h >$ac_stdint
+echo "#define" $_ac_stdint_h "1" >>$ac_stdint
+echo "#ifndef" _GENERATED_STDINT_H >>$ac_stdint
+echo "#define" _GENERATED_STDINT_H '"'$PACKAGE $VERSION'"' >>$ac_stdint
+echo "/* generated $ac_cv_stdint_message */" >>$ac_stdint
+if test "_$ac_cv_header_stdint_t" != "_" ; then
+echo "#define _STDINT_HAVE_STDINT_H" "1" >>$ac_stdint
+echo "#include <stdint.h>" >>$ac_stdint
+echo "#endif" >>$ac_stdint
+echo "#endif" >>$ac_stdint
+else
+
+cat >>$ac_stdint <<STDINT_EOF
+
+/* ................... shortcircuit part ........................... */
+
+#if defined HAVE_STDINT_H || defined _STDINT_HAVE_STDINT_H
+#include <stdint.h>
+#else
+#include <stddef.h>
+
+/* .................... configured part ............................ */
+
+STDINT_EOF
+
+echo "/* whether we have a C99 compatible stdint header file */" >>$ac_stdint
+if test "_$ac_cv_header_stdint_x" != "_" ; then
+ ac_header="$ac_cv_header_stdint_x"
+ echo "#define _STDINT_HEADER_INTPTR" '"'"$ac_header"'"' >>$ac_stdint
+else
+ echo "/* #undef _STDINT_HEADER_INTPTR */" >>$ac_stdint
+fi
+
+echo "/* whether we have a C96 compatible inttypes header file */" >>$ac_stdint
+if test "_$ac_cv_header_stdint_o" != "_" ; then
+ ac_header="$ac_cv_header_stdint_o"
+ echo "#define _STDINT_HEADER_UINT32" '"'"$ac_header"'"' >>$ac_stdint
+else
+ echo "/* #undef _STDINT_HEADER_UINT32 */" >>$ac_stdint
+fi
+
+echo "/* whether we have a BSD compatible inet types header */" >>$ac_stdint
+if test "_$ac_cv_header_stdint_u" != "_" ; then
+ ac_header="$ac_cv_header_stdint_u"
+ echo "#define _STDINT_HEADER_U_INT32" '"'"$ac_header"'"' >>$ac_stdint
+else
+ echo "/* #undef _STDINT_HEADER_U_INT32 */" >>$ac_stdint
+fi
+
+echo "" >>$ac_stdint
+
+if test "_$ac_header" != "_" ; then if test "$ac_header" != "stddef.h" ; then
+ echo "#include <$ac_header>" >>$ac_stdint
+ echo "" >>$ac_stdint
+fi fi
+
+echo "/* which 64bit typedef has been found */" >>$ac_stdint
+if test "$ac_cv_type_uint64_t" = "yes" ; then
+echo "#define _STDINT_HAVE_UINT64_T" "1" >>$ac_stdint
+else
+echo "/* #undef _STDINT_HAVE_UINT64_T */" >>$ac_stdint
+fi
+if test "$ac_cv_type_u_int64_t" = "yes" ; then
+echo "#define _STDINT_HAVE_U_INT64_T" "1" >>$ac_stdint
+else
+echo "/* #undef _STDINT_HAVE_U_INT64_T */" >>$ac_stdint
+fi
+echo "" >>$ac_stdint
+
+echo "/* which type model has been detected */" >>$ac_stdint
+if test "_$ac_cv_char_data_model" != "_" ; then
+echo "#define _STDINT_CHAR_MODEL" "$ac_cv_char_data_model" >>$ac_stdint
+echo "#define _STDINT_LONG_MODEL" "$ac_cv_long_data_model" >>$ac_stdint
+else
+echo "/* #undef _STDINT_CHAR_MODEL // skipped */" >>$ac_stdint
+echo "/* #undef _STDINT_LONG_MODEL // skipped */" >>$ac_stdint
+fi
+echo "" >>$ac_stdint
+
+echo "/* whether int_least types were detected */" >>$ac_stdint
+if test "$ac_cv_type_int_least32_t" = "yes"; then
+echo "#define _STDINT_HAVE_INT_LEAST32_T" "1" >>$ac_stdint
+else
+echo "/* #undef _STDINT_HAVE_INT_LEAST32_T */" >>$ac_stdint
+fi
+echo "/* whether int_fast types were detected */" >>$ac_stdint
+if test "$ac_cv_type_int_fast32_t" = "yes"; then
+echo "#define _STDINT_HAVE_INT_FAST32_T" "1" >>$ac_stdint
+else
+echo "/* #undef _STDINT_HAVE_INT_FAST32_T */" >>$ac_stdint
+fi
+echo "/* whether intmax_t type was detected */" >>$ac_stdint
+if test "$ac_cv_type_intmax_t" = "yes"; then
+echo "#define _STDINT_HAVE_INTMAX_T" "1" >>$ac_stdint
+else
+echo "/* #undef _STDINT_HAVE_INTMAX_T */" >>$ac_stdint
+fi
+echo "" >>$ac_stdint
+
+ cat >>$ac_stdint <<STDINT_EOF
+/* .................... detections part ............................ */
+
+/* whether we need to define bitspecific types from compiler base types */
+#ifndef _STDINT_HEADER_INTPTR
+#ifndef _STDINT_HEADER_UINT32
+#ifndef _STDINT_HEADER_U_INT32
+#define _STDINT_NEED_INT_MODEL_T
+#else
+#define _STDINT_HAVE_U_INT_TYPES
+#endif
+#endif
+#endif
+
+#ifdef _STDINT_HAVE_U_INT_TYPES
+#undef _STDINT_NEED_INT_MODEL_T
+#endif
+
+#ifdef _STDINT_CHAR_MODEL
+#if _STDINT_CHAR_MODEL+0 == 122 || _STDINT_CHAR_MODEL+0 == 124
+#ifndef _STDINT_BYTE_MODEL
+#define _STDINT_BYTE_MODEL 12
+#endif
+#endif
+#endif
+
+#ifndef _STDINT_HAVE_INT_LEAST32_T
+#define _STDINT_NEED_INT_LEAST_T
+#endif
+
+#ifndef _STDINT_HAVE_INT_FAST32_T
+#define _STDINT_NEED_INT_FAST_T
+#endif
+
+#ifndef _STDINT_HEADER_INTPTR
+#define _STDINT_NEED_INTPTR_T
+#ifndef _STDINT_HAVE_INTMAX_T
+#define _STDINT_NEED_INTMAX_T
+#endif
+#endif
+
+
+/* .................... definition part ............................ */
+
+/* some system headers have good uint64_t */
+#ifndef _HAVE_UINT64_T
+#if defined _STDINT_HAVE_UINT64_T || defined HAVE_UINT64_T
+#define _HAVE_UINT64_T
+#elif defined _STDINT_HAVE_U_INT64_T || defined HAVE_U_INT64_T
+#define _HAVE_UINT64_T
+typedef u_int64_t uint64_t;
+#endif
+#endif
+
+#ifndef _HAVE_UINT64_T
+/* .. here are some common heuristics using compiler runtime specifics */
+#if defined __STDC_VERSION__ && defined __STDC_VERSION__ >= 199901L
+#define _HAVE_UINT64_T
+#define _HAVE_LONGLONG_UINT64_T
+typedef long long int64_t;
+typedef unsigned long long uint64_t;
+
+#elif !defined __STRICT_ANSI__
+#if defined _MSC_VER || defined __WATCOMC__ || defined __BORLANDC__
+#define _HAVE_UINT64_T
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+
+#elif defined __GNUC__ || defined __MWERKS__ || defined __ELF__
+/* note: all ELF-systems seem to have loff-support which needs 64-bit */
+#if !defined _NO_LONGLONG
+#define _HAVE_UINT64_T
+#define _HAVE_LONGLONG_UINT64_T
+typedef long long int64_t;
+typedef unsigned long long uint64_t;
+#endif
+
+#elif defined __alpha || (defined __mips && defined _ABIN32)
+#if !defined _NO_LONGLONG
+typedef long int64_t;
+typedef unsigned long uint64_t;
+#endif
+ /* compiler/cpu type to define int64_t */
+#endif
+#endif
+#endif
+
+#if defined _STDINT_HAVE_U_INT_TYPES
+/* int8_t int16_t int32_t defined by inet code, redeclare the u_intXX types */
+typedef u_int8_t uint8_t;
+typedef u_int16_t uint16_t;
+typedef u_int32_t uint32_t;
+
+/* glibc compatibility */
+#ifndef __int8_t_defined
+#define __int8_t_defined
+#endif
+#endif
+
+#ifdef _STDINT_NEED_INT_MODEL_T
+/* we must guess all the basic types. Apart from byte-adressable system, */
+/* there a few 32-bit-only dsp-systems that we guard with BYTE_MODEL 8-} */
+/* (btw, those nibble-addressable systems are way off, or so we assume) */
+
+dnl /* have a look at "64bit and data size neutrality" at */
+dnl /* http://unix.org/version2/whatsnew/login_64bit.html */
+dnl /* (the shorthand "ILP" types always have a "P" part) */
+
+#if defined _STDINT_BYTE_MODEL
+#if _STDINT_LONG_MODEL+0 == 242
+/* 2:4:2 = IP16 = a normal 16-bit system */
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned long uint32_t;
+#ifndef __int8_t_defined
+#define __int8_t_defined
+typedef char int8_t;
+typedef short int16_t;
+typedef long int32_t;
+#endif
+#elif _STDINT_LONG_MODEL+0 == 244 || _STDINT_LONG_MODEL == 444
+/* 2:4:4 = LP32 = a 32-bit system derived from a 16-bit */
+/* 4:4:4 = ILP32 = a normal 32-bit system */
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+#ifndef __int8_t_defined
+#define __int8_t_defined
+typedef char int8_t;
+typedef short int16_t;
+typedef int int32_t;
+#endif
+#elif _STDINT_LONG_MODEL+0 == 484 || _STDINT_LONG_MODEL+0 == 488
+/* 4:8:4 = IP32 = a 32-bit system prepared for 64-bit */
+/* 4:8:8 = LP64 = a normal 64-bit system */
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+#ifndef __int8_t_defined
+#define __int8_t_defined
+typedef char int8_t;
+typedef short int16_t;
+typedef int int32_t;
+#endif
+/* this system has a "long" of 64bit */
+#ifndef _HAVE_UINT64_T
+#define _HAVE_UINT64_T
+typedef unsigned long uint64_t;
+typedef long int64_t;
+#endif
+#elif _STDINT_LONG_MODEL+0 == 448
+/* LLP64 a 64-bit system derived from a 32-bit system */
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+#ifndef __int8_t_defined
+#define __int8_t_defined
+typedef char int8_t;
+typedef short int16_t;
+typedef int int32_t;
+#endif
+/* assuming the system has a "long long" */
+#ifndef _HAVE_UINT64_T
+#define _HAVE_UINT64_T
+#define _HAVE_LONGLONG_UINT64_T
+typedef unsigned long long uint64_t;
+typedef long long int64_t;
+#endif
+#else
+#define _STDINT_NO_INT32_T
+#endif
+#else
+#define _STDINT_NO_INT8_T
+#define _STDINT_NO_INT32_T
+#endif
+#endif
+
+/*
+ * quote from SunOS-5.8 sys/inttypes.h:
+ * Use at your own risk. As of February 1996, the committee is squarely
+ * behind the fixed sized types; the "least" and "fast" types are still being
+ * discussed. The probability that the "fast" types may be removed before
+ * the standard is finalized is high enough that they are not currently
+ * implemented.
+ */
+
+#if defined _STDINT_NEED_INT_LEAST_T
+typedef int8_t int_least8_t;
+typedef int16_t int_least16_t;
+typedef int32_t int_least32_t;
+#ifdef _HAVE_UINT64_T
+typedef int64_t int_least64_t;
+#endif
+
+typedef uint8_t uint_least8_t;
+typedef uint16_t uint_least16_t;
+typedef uint32_t uint_least32_t;
+#ifdef _HAVE_UINT64_T
+typedef uint64_t uint_least64_t;
+#endif
+ /* least types */
+#endif
+
+#if defined _STDINT_NEED_INT_FAST_T
+typedef int8_t int_fast8_t;
+typedef int int_fast16_t;
+typedef int32_t int_fast32_t;
+#ifdef _HAVE_UINT64_T
+typedef int64_t int_fast64_t;
+#endif
+
+typedef uint8_t uint_fast8_t;
+typedef unsigned uint_fast16_t;
+typedef uint32_t uint_fast32_t;
+#ifdef _HAVE_UINT64_T
+typedef uint64_t uint_fast64_t;
+#endif
+ /* fast types */
+#endif
+
+#ifdef _STDINT_NEED_INTMAX_T
+#ifdef _HAVE_UINT64_T
+typedef int64_t intmax_t;
+typedef uint64_t uintmax_t;
+#else
+typedef long intmax_t;
+typedef unsigned long uintmax_t;
+#endif
+#endif
+
+#ifdef _STDINT_NEED_INTPTR_T
+#ifndef __intptr_t_defined
+#define __intptr_t_defined
+/* we encourage using "long" to store pointer values, never use "int" ! */
+#if _STDINT_LONG_MODEL+0 == 242 || _STDINT_LONG_MODEL+0 == 484
+typedef unsigned int uintptr_t;
+typedef int intptr_t;
+#elif _STDINT_LONG_MODEL+0 == 244 || _STDINT_LONG_MODEL+0 == 444
+typedef unsigned long uintptr_t;
+typedef long intptr_t;
+#elif _STDINT_LONG_MODEL+0 == 448 && defined _HAVE_UINT64_T
+typedef uint64_t uintptr_t;
+typedef int64_t intptr_t;
+#else /* matches typical system types ILP32 and LP64 - but not IP16 or LLP64 */
+typedef unsigned long uintptr_t;
+typedef long intptr_t;
+#endif
+#endif
+#endif
+
+/* The ISO C99 standard specifies that in C++ implementations these
+ should only be defined if explicitly requested. */
+#if !defined __cplusplus || defined __STDC_CONSTANT_MACROS
+#ifndef UINT32_C
+
+/* Signed. */
+# define INT8_C(c) c
+# define INT16_C(c) c
+# define INT32_C(c) c
+# ifdef _HAVE_LONGLONG_UINT64_T
+# define INT64_C(c) c ## L
+# else
+# define INT64_C(c) c ## LL
+# endif
+
+/* Unsigned. */
+# define UINT8_C(c) c ## U
+# define UINT16_C(c) c ## U
+# define UINT32_C(c) c ## U
+# ifdef _HAVE_LONGLONG_UINT64_T
+# define UINT64_C(c) c ## UL
+# else
+# define UINT64_C(c) c ## ULL
+# endif
+
+/* Maximal type. */
+# ifdef _HAVE_LONGLONG_UINT64_T
+# define INTMAX_C(c) c ## L
+# define UINTMAX_C(c) c ## UL
+# else
+# define INTMAX_C(c) c ## LL
+# define UINTMAX_C(c) c ## ULL
+# endif
+
+ /* literalnumbers */
+#endif
+#endif
+
+/* These limits are merily those of a two complement byte-oriented system */
+
+/* Minimum of signed integral types. */
+# define INT8_MIN (-128)
+# define INT16_MIN (-32767-1)
+# define INT32_MIN (-2147483647-1)
+# define INT64_MIN (-__INT64_C(9223372036854775807)-1)
+/* Maximum of signed integral types. */
+# define INT8_MAX (127)
+# define INT16_MAX (32767)
+# define INT32_MAX (2147483647)
+# define INT64_MAX (__INT64_C(9223372036854775807))
+
+/* Maximum of unsigned integral types. */
+# define UINT8_MAX (255)
+# define UINT16_MAX (65535)
+# define UINT32_MAX (4294967295U)
+# define UINT64_MAX (__UINT64_C(18446744073709551615))
+
+/* Minimum of signed integral types having a minimum size. */
+# define INT_LEAST8_MIN INT8_MIN
+# define INT_LEAST16_MIN INT16_MIN
+# define INT_LEAST32_MIN INT32_MIN
+# define INT_LEAST64_MIN INT64_MIN
+/* Maximum of signed integral types having a minimum size. */
+# define INT_LEAST8_MAX INT8_MAX
+# define INT_LEAST16_MAX INT16_MAX
+# define INT_LEAST32_MAX INT32_MAX
+# define INT_LEAST64_MAX INT64_MAX
+
+/* Maximum of unsigned integral types having a minimum size. */
+# define UINT_LEAST8_MAX UINT8_MAX
+# define UINT_LEAST16_MAX UINT16_MAX
+# define UINT_LEAST32_MAX UINT32_MAX
+# define UINT_LEAST64_MAX UINT64_MAX
+
+ /* shortcircuit*/
+#endif
+ /* once */
+#endif
+#endif
+STDINT_EOF
+fi
+ if cmp -s $ac_stdint_h $ac_stdint 2>/dev/null; then
+ AC_MSG_NOTICE([$ac_stdint_h is unchanged])
+ else
+ ac_dir=`AS_DIRNAME(["$ac_stdint_h"])`
+ AS_MKDIR_P(["$ac_dir"])
+ rm -f $ac_stdint_h
+ mv $ac_stdint $ac_stdint_h
+ fi
+],[# variables for create stdint.h replacement
+PACKAGE="$PACKAGE"
+VERSION="$VERSION"
+ac_stdint_h="$ac_stdint_h"
+_ac_stdint_h=AS_TR_CPP(_$PACKAGE-$ac_stdint_h)
+ac_cv_stdint_message="$ac_cv_stdint_message"
+ac_cv_header_stdint_t="$ac_cv_header_stdint_t"
+ac_cv_header_stdint_x="$ac_cv_header_stdint_x"
+ac_cv_header_stdint_o="$ac_cv_header_stdint_o"
+ac_cv_header_stdint_u="$ac_cv_header_stdint_u"
+ac_cv_type_uint64_t="$ac_cv_type_uint64_t"
+ac_cv_type_u_int64_t="$ac_cv_type_u_int64_t"
+ac_cv_char_data_model="$ac_cv_char_data_model"
+ac_cv_long_data_model="$ac_cv_long_data_model"
+ac_cv_type_int_least32_t="$ac_cv_type_int_least32_t"
+ac_cv_type_int_fast32_t="$ac_cv_type_int_fast32_t"
+ac_cv_type_intmax_t="$ac_cv_type_intmax_t"
+])
+])
--- /dev/null
+# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
+#
+# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
+#
+# 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 of the License, 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# 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.
+
+# PKG_PROG_PKG_CONFIG([MIN-VERSION])
+# ----------------------------------
+AC_DEFUN([PKG_PROG_PKG_CONFIG],
+[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
+m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
+AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+ AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+fi
+if test -n "$PKG_CONFIG"; then
+ _pkg_min_version=m4_default([$1], [0.9.0])
+ AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
+ if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ PKG_CONFIG=""
+ fi
+
+fi[]dnl
+])# PKG_PROG_PKG_CONFIG
+
+# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+#
+# Check to see whether a particular set of modules exists. Similar
+# to PKG_CHECK_MODULES(), but does not set variables or print errors.
+#
+#
+# Similar to PKG_CHECK_MODULES, make sure that the first instance of
+# this or PKG_CHECK_MODULES is called, or make sure to call
+# PKG_CHECK_EXISTS manually
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_EXISTS],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+if test -n "$PKG_CONFIG" && \
+ AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
+ m4_ifval([$2], [$2], [:])
+m4_ifvaln([$3], [else
+ $3])dnl
+fi])
+
+
+# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
+# ---------------------------------------------
+m4_define([_PKG_CONFIG],
+[if test -n "$PKG_CONFIG"; then
+ if test -n "$$1"; then
+ pkg_cv_[]$1="$$1"
+ else
+ PKG_CHECK_EXISTS([$3],
+ [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
+ [pkg_failed=yes])
+ fi
+else
+ pkg_failed=untried
+fi[]dnl
+])# _PKG_CONFIG
+
+# _PKG_SHORT_ERRORS_SUPPORTED
+# -----------------------------
+AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi[]dnl
+])# _PKG_SHORT_ERRORS_SUPPORTED
+
+
+# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+# [ACTION-IF-NOT-FOUND])
+#
+#
+# Note that if there is a possibility the first call to
+# PKG_CHECK_MODULES might not happen, you should be sure to include an
+# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
+#
+#
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_MODULES],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
+AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
+
+pkg_failed=no
+AC_MSG_CHECKING([for $1])
+
+_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
+_PKG_CONFIG([$1][_LIBS], [libs], [$2])
+
+m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
+and $1[]_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.])
+
+if test $pkg_failed = yes; then
+ _PKG_SHORT_ERRORS_SUPPORTED
+ if test $_pkg_short_errors_supported = yes; then
+ $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "$2"`
+ else
+ $1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+
+ ifelse([$4], , [AC_MSG_ERROR(dnl
+[Package requirements ($2) were not met:
+
+$$1_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+_PKG_TEXT
+])],
+ [AC_MSG_RESULT([no])
+ $4])
+elif test $pkg_failed = untried; then
+ ifelse([$4], , [AC_MSG_FAILURE(dnl
+[The pkg-config script could not be found or is too old. Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+_PKG_TEXT
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
+ [$4])
+else
+ $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+ $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+ AC_MSG_RESULT([yes])
+ ifelse([$3], , :, [$3])
+fi[]dnl
+])# PKG_CHECK_MODULES
--- /dev/null
+# nestegg uninstalled pkg-config file
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: nestegg
+Description: WebM/Matroska demuxer
+Version: @VERSION@
+Conflicts:
+Libs: -L${libdir} -lnestegg
+Cflags: -I${includedir}
--- /dev/null
+# nestegg installed pkg-config file
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: nestegg
+Description: WebM/Matroska demuxer
+Version: @VERSION@
+Conflicts:
+Libs: -L${libdir} -lnestegg
+Cflags: -I${includedir}
--- /dev/null
+/*
+ * Copyright © 2010 Mozilla Foundation
+ *
+ * This program is made available under an ISC-style license. See the
+ * accompanying file LICENSE for details.
+ */
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "halloc.h"
+#include "nestegg/nestegg.h"
+
+/* EBML Elements */
+#define ID_EBML 0x1a45dfa3
+#define ID_EBML_VERSION 0x4286
+#define ID_EBML_READ_VERSION 0x42f7
+#define ID_EBML_MAX_ID_LENGTH 0x42f2
+#define ID_EBML_MAX_SIZE_LENGTH 0x42f3
+#define ID_DOCTYPE 0x4282
+#define ID_DOCTYPE_VERSION 0x4287
+#define ID_DOCTYPE_READ_VERSION 0x4285
+
+/* Global Elements */
+#define ID_VOID 0xec
+#define ID_CRC32 0xbf
+
+/* WebMedia Elements */
+#define ID_SEGMENT 0x18538067
+
+/* Seek Head Elements */
+#define ID_SEEK_HEAD 0x114d9b74
+#define ID_SEEK 0x4dbb
+#define ID_SEEK_ID 0x53ab
+#define ID_SEEK_POSITION 0x53ac
+
+/* Info Elements */
+#define ID_INFO 0x1549a966
+#define ID_TIMECODE_SCALE 0x2ad7b1
+#define ID_DURATION 0x4489
+
+/* Cluster Elements */
+#define ID_CLUSTER 0x1f43b675
+#define ID_TIMECODE 0xe7
+#define ID_BLOCK_GROUP 0xa0
+#define ID_SIMPLE_BLOCK 0xa3
+
+/* BlockGroup Elements */
+#define ID_BLOCK 0xa1
+#define ID_BLOCK_DURATION 0x9b
+#define ID_REFERENCE_BLOCK 0xfb
+
+/* Tracks Elements */
+#define ID_TRACKS 0x1654ae6b
+#define ID_TRACK_ENTRY 0xae
+#define ID_TRACK_NUMBER 0xd7
+#define ID_TRACK_UID 0x73c5
+#define ID_TRACK_TYPE 0x83
+#define ID_FLAG_ENABLED 0xb9
+#define ID_FLAG_DEFAULT 0x88
+#define ID_FLAG_LACING 0x9c
+#define ID_TRACK_TIMECODE_SCALE 0x23314f
+#define ID_LANGUAGE 0x22b59c
+#define ID_CODEC_ID 0x86
+#define ID_CODEC_PRIVATE 0x63a2
+
+/* Video Elements */
+#define ID_VIDEO 0xe0
+#define ID_PIXEL_WIDTH 0xb0
+#define ID_PIXEL_HEIGHT 0xba
+#define ID_PIXEL_CROP_BOTTOM 0x54aa
+#define ID_PIXEL_CROP_TOP 0x54bb
+#define ID_PIXEL_CROP_LEFT 0x54cc
+#define ID_PIXEL_CROP_RIGHT 0x54dd
+#define ID_DISPLAY_WIDTH 0x54b0
+#define ID_DISPLAY_HEIGHT 0x54ba
+
+/* Audio Elements */
+#define ID_AUDIO 0xe1
+#define ID_SAMPLING_FREQUENCY 0xb5
+#define ID_CHANNELS 0x9f
+#define ID_BIT_DEPTH 0x6264
+
+/* Cues Elements */
+#define ID_CUES 0x1c53bb6b
+#define ID_CUE_POINT 0xbb
+#define ID_CUE_TIME 0xb3
+#define ID_CUE_TRACK_POSITIONS 0xb7
+#define ID_CUE_TRACK 0xf7
+#define ID_CUE_CLUSTER_POSITION 0xf1
+#define ID_CUE_BLOCK_NUMBER 0x5378
+
+/* EBML Types */
+enum ebml_type_enum {
+ TYPE_UNKNOWN,
+ TYPE_MASTER,
+ TYPE_UINT,
+ TYPE_FLOAT,
+ TYPE_INT,
+ TYPE_STRING,
+ TYPE_BINARY
+};
+
+#define LIMIT_STRING (1 << 20)
+#define LIMIT_BINARY (1 << 24)
+#define LIMIT_BLOCK (1 << 30)
+#define LIMIT_FRAME (1 << 28)
+
+/* Field Flags */
+#define DESC_FLAG_NONE 0
+#define DESC_FLAG_MULTI (1 << 0)
+#define DESC_FLAG_SUSPEND (1 << 1)
+#define DESC_FLAG_OFFSET (1 << 2)
+
+/* Block Header Flags */
+#define BLOCK_FLAGS_LACING 6
+
+/* Lacing Constants */
+#define LACING_NONE 0
+#define LACING_XIPH 1
+#define LACING_FIXED 2
+#define LACING_EBML 3
+
+/* Track Types */
+#define TRACK_TYPE_VIDEO 1
+#define TRACK_TYPE_AUDIO 2
+
+/* Track IDs */
+#define TRACK_ID_VP8 "V_VP8"
+#define TRACK_ID_VORBIS "A_VORBIS"
+
+enum vint_mask {
+ MASK_NONE,
+ MASK_FIRST_BIT
+};
+
+struct ebml_binary {
+ unsigned char * data;
+ size_t length;
+};
+
+struct ebml_list_node {
+ struct ebml_list_node * next;
+ uint64_t id;
+ void * data;
+};
+
+struct ebml_list {
+ struct ebml_list_node * head;
+ struct ebml_list_node * tail;
+};
+
+struct ebml_type {
+ union ebml_value {
+ uint64_t u;
+ double f;
+ int64_t i;
+ char * s;
+ struct ebml_binary b;
+ } v;
+ enum ebml_type_enum type;
+ int read;
+};
+
+/* EBML Definitions */
+struct ebml {
+ struct ebml_type ebml_version;
+ struct ebml_type ebml_read_version;
+ struct ebml_type ebml_max_id_length;
+ struct ebml_type ebml_max_size_length;
+ struct ebml_type doctype;
+ struct ebml_type doctype_version;
+ struct ebml_type doctype_read_version;
+};
+
+/* Matroksa Definitions */
+struct seek {
+ struct ebml_type id;
+ struct ebml_type position;
+};
+
+struct seek_head {
+ struct ebml_list seek;
+};
+
+struct info {
+ struct ebml_type timecode_scale;
+ struct ebml_type duration;
+};
+
+struct block_group {
+ struct ebml_type duration;
+ struct ebml_type reference_block;
+};
+
+struct cluster {
+ struct ebml_type timecode;
+ struct ebml_list block_group;
+};
+
+struct video {
+ struct ebml_type pixel_width;
+ struct ebml_type pixel_height;
+ struct ebml_type pixel_crop_bottom;
+ struct ebml_type pixel_crop_top;
+ struct ebml_type pixel_crop_left;
+ struct ebml_type pixel_crop_right;
+ struct ebml_type display_width;
+ struct ebml_type display_height;
+};
+
+struct audio {
+ struct ebml_type sampling_frequency;
+ struct ebml_type channels;
+ struct ebml_type bit_depth;
+};
+
+struct track_entry {
+ struct ebml_type number;
+ struct ebml_type uid;
+ struct ebml_type type;
+ struct ebml_type flag_enabled;
+ struct ebml_type flag_default;
+ struct ebml_type flag_lacing;
+ struct ebml_type track_timecode_scale;
+ struct ebml_type language;
+ struct ebml_type codec_id;
+ struct ebml_type codec_private;
+ struct video video;
+ struct audio audio;
+};
+
+struct tracks {
+ struct ebml_list track_entry;
+};
+
+struct cue_track_positions {
+ struct ebml_type track;
+ struct ebml_type cluster_position;
+ struct ebml_type block_number;
+};
+
+struct cue_point {
+ struct ebml_type time;
+ struct ebml_list cue_track_positions;
+};
+
+struct cues {
+ struct ebml_list cue_point;
+};
+
+struct segment {
+ struct ebml_list seek_head;
+ struct info info;
+ struct ebml_list cluster;
+ struct tracks tracks;
+ struct cues cues;
+};
+
+/* Misc. */
+struct pool_ctx {
+ char dummy;
+};
+
+struct list_node {
+ struct list_node * previous;
+ struct ebml_element_desc * node;
+ unsigned char * data;
+};
+
+struct saved_state {
+ int64_t stream_offset;
+ struct list_node * ancestor;
+ uint64_t last_id;
+ uint64_t last_size;
+};
+
+struct frame {
+ unsigned char * data;
+ size_t length;
+ struct frame * next;
+};
+
+/* Public (opaque) Structures */
+struct nestegg {
+ nestegg_io * io;
+ nestegg_log log;
+ struct pool_ctx * alloc_pool;
+ uint64_t last_id;
+ uint64_t last_size;
+ struct list_node * ancestor;
+ struct ebml ebml;
+ struct segment segment;
+ int64_t segment_offset;
+ unsigned int track_count;
+};
+
+struct nestegg_packet {
+ uint64_t track;
+ uint64_t timecode;
+ struct frame * frame;
+};
+
+/* Element Descriptor */
+struct ebml_element_desc {
+ char const * name;
+ uint64_t id;
+ enum ebml_type_enum type;
+ size_t offset;
+ unsigned int flags;
+ struct ebml_element_desc * children;
+ size_t size;
+ size_t data_offset;
+};
+
+#define E_FIELD(ID, TYPE, STRUCT, FIELD) \
+ { #ID, ID, TYPE, offsetof(STRUCT, FIELD), DESC_FLAG_NONE, NULL, 0, 0 }
+#define E_MASTER(ID, TYPE, STRUCT, FIELD) \
+ { #ID, ID, TYPE, offsetof(STRUCT, FIELD), DESC_FLAG_MULTI, ne_ ## FIELD ## _elements, \
+ sizeof(struct FIELD), 0 }
+#define E_SINGLE_MASTER_O(ID, TYPE, STRUCT, FIELD) \
+ { #ID, ID, TYPE, offsetof(STRUCT, FIELD), DESC_FLAG_OFFSET, ne_ ## FIELD ## _elements, 0, \
+ offsetof(STRUCT, FIELD ## _offset) }
+#define E_SINGLE_MASTER(ID, TYPE, STRUCT, FIELD) \
+ { #ID, ID, TYPE, offsetof(STRUCT, FIELD), DESC_FLAG_NONE, ne_ ## FIELD ## _elements, 0, 0 }
+#define E_SUSPEND(ID, TYPE) \
+ { #ID, ID, TYPE, 0, DESC_FLAG_SUSPEND, NULL, 0, 0 }
+#define E_LAST \
+ { NULL, 0, 0, 0, DESC_FLAG_NONE, NULL, 0, 0 }
+
+/* EBML Element Lists */
+static struct ebml_element_desc ne_ebml_elements[] = {
+ E_FIELD(ID_EBML_VERSION, TYPE_UINT, struct ebml, ebml_version),
+ E_FIELD(ID_EBML_READ_VERSION, TYPE_UINT, struct ebml, ebml_read_version),
+ E_FIELD(ID_EBML_MAX_ID_LENGTH, TYPE_UINT, struct ebml, ebml_max_id_length),
+ E_FIELD(ID_EBML_MAX_SIZE_LENGTH, TYPE_UINT, struct ebml, ebml_max_size_length),
+ E_FIELD(ID_DOCTYPE, TYPE_STRING, struct ebml, doctype),
+ E_FIELD(ID_DOCTYPE_VERSION, TYPE_UINT, struct ebml, doctype_version),
+ E_FIELD(ID_DOCTYPE_READ_VERSION, TYPE_UINT, struct ebml, doctype_read_version),
+ E_LAST
+};
+
+/* WebMedia Element Lists */
+static struct ebml_element_desc ne_seek_elements[] = {
+ E_FIELD(ID_SEEK_ID, TYPE_BINARY, struct seek, id),
+ E_FIELD(ID_SEEK_POSITION, TYPE_UINT, struct seek, position),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_seek_head_elements[] = {
+ E_MASTER(ID_SEEK, TYPE_MASTER, struct seek_head, seek),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_info_elements[] = {
+ E_FIELD(ID_TIMECODE_SCALE, TYPE_UINT, struct info, timecode_scale),
+ E_FIELD(ID_DURATION, TYPE_FLOAT, struct info, duration),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_block_group_elements[] = {
+ E_SUSPEND(ID_BLOCK, TYPE_BINARY),
+ E_FIELD(ID_BLOCK_DURATION, TYPE_UINT, struct block_group, duration),
+ E_FIELD(ID_REFERENCE_BLOCK, TYPE_INT, struct block_group, reference_block),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_cluster_elements[] = {
+ E_FIELD(ID_TIMECODE, TYPE_UINT, struct cluster, timecode),
+ E_MASTER(ID_BLOCK_GROUP, TYPE_MASTER, struct cluster, block_group),
+ E_SUSPEND(ID_SIMPLE_BLOCK, TYPE_BINARY),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_video_elements[] = {
+ E_FIELD(ID_PIXEL_WIDTH, TYPE_UINT, struct video, pixel_width),
+ E_FIELD(ID_PIXEL_HEIGHT, TYPE_UINT, struct video, pixel_height),
+ E_FIELD(ID_PIXEL_CROP_BOTTOM, TYPE_UINT, struct video, pixel_crop_bottom),
+ E_FIELD(ID_PIXEL_CROP_TOP, TYPE_UINT, struct video, pixel_crop_top),
+ E_FIELD(ID_PIXEL_CROP_LEFT, TYPE_UINT, struct video, pixel_crop_left),
+ E_FIELD(ID_PIXEL_CROP_RIGHT, TYPE_UINT, struct video, pixel_crop_right),
+ E_FIELD(ID_DISPLAY_WIDTH, TYPE_UINT, struct video, display_width),
+ E_FIELD(ID_DISPLAY_HEIGHT, TYPE_UINT, struct video, display_height),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_audio_elements[] = {
+ E_FIELD(ID_SAMPLING_FREQUENCY, TYPE_FLOAT, struct audio, sampling_frequency),
+ E_FIELD(ID_CHANNELS, TYPE_UINT, struct audio, channels),
+ E_FIELD(ID_BIT_DEPTH, TYPE_UINT, struct audio, bit_depth),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_track_entry_elements[] = {
+ E_FIELD(ID_TRACK_NUMBER, TYPE_UINT, struct track_entry, number),
+ E_FIELD(ID_TRACK_UID, TYPE_UINT, struct track_entry, uid),
+ E_FIELD(ID_TRACK_TYPE, TYPE_UINT, struct track_entry, type),
+ E_FIELD(ID_FLAG_ENABLED, TYPE_UINT, struct track_entry, flag_enabled),
+ E_FIELD(ID_FLAG_DEFAULT, TYPE_UINT, struct track_entry, flag_default),
+ E_FIELD(ID_FLAG_LACING, TYPE_UINT, struct track_entry, flag_lacing),
+ E_FIELD(ID_TRACK_TIMECODE_SCALE, TYPE_FLOAT, struct track_entry, track_timecode_scale),
+ E_FIELD(ID_LANGUAGE, TYPE_STRING, struct track_entry, language),
+ E_FIELD(ID_CODEC_ID, TYPE_STRING, struct track_entry, codec_id),
+ E_FIELD(ID_CODEC_PRIVATE, TYPE_BINARY, struct track_entry, codec_private),
+ E_SINGLE_MASTER(ID_VIDEO, TYPE_MASTER, struct track_entry, video),
+ E_SINGLE_MASTER(ID_AUDIO, TYPE_MASTER, struct track_entry, audio),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_tracks_elements[] = {
+ E_MASTER(ID_TRACK_ENTRY, TYPE_MASTER, struct tracks, track_entry),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_cue_track_positions_elements[] = {
+ E_FIELD(ID_CUE_TRACK, TYPE_UINT, struct cue_track_positions, track),
+ E_FIELD(ID_CUE_CLUSTER_POSITION, TYPE_UINT, struct cue_track_positions, cluster_position),
+ E_FIELD(ID_CUE_BLOCK_NUMBER, TYPE_UINT, struct cue_track_positions, block_number),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_cue_point_elements[] = {
+ E_FIELD(ID_CUE_TIME, TYPE_UINT, struct cue_point, time),
+ E_MASTER(ID_CUE_TRACK_POSITIONS, TYPE_MASTER, struct cue_point, cue_track_positions),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_cues_elements[] = {
+ E_MASTER(ID_CUE_POINT, TYPE_MASTER, struct cues, cue_point),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_segment_elements[] = {
+ E_MASTER(ID_SEEK_HEAD, TYPE_MASTER, struct segment, seek_head),
+ E_SINGLE_MASTER(ID_INFO, TYPE_MASTER, struct segment, info),
+ E_MASTER(ID_CLUSTER, TYPE_MASTER, struct segment, cluster),
+ E_SINGLE_MASTER(ID_TRACKS, TYPE_MASTER, struct segment, tracks),
+ E_SINGLE_MASTER(ID_CUES, TYPE_MASTER, struct segment, cues),
+ E_LAST
+};
+
+static struct ebml_element_desc ne_top_level_elements[] = {
+ E_SINGLE_MASTER(ID_EBML, TYPE_MASTER, nestegg, ebml),
+ E_SINGLE_MASTER_O(ID_SEGMENT, TYPE_MASTER, nestegg, segment),
+ E_LAST
+};
+
+#undef E_FIELD
+#undef E_MASTER
+#undef E_SINGLE_MASTER_O
+#undef E_SINGLE_MASTER
+#undef E_SUSPEND
+#undef E_LAST
+
+static struct pool_ctx *
+ne_pool_init(void)
+{
+ struct pool_ctx * pool;
+
+ pool = h_malloc(sizeof(*pool));
+ if (!pool)
+ abort();
+ return pool;
+}
+
+static void
+ne_pool_destroy(struct pool_ctx * pool)
+{
+ h_free(pool);
+}
+
+static void *
+ne_pool_alloc(size_t size, struct pool_ctx * pool)
+{
+ void * p;
+
+ p = h_malloc(size);
+ if (!p)
+ abort();
+ hattach(p, pool);
+ memset(p, 0, size);
+ return p;
+}
+
+static void *
+ne_alloc(size_t size)
+{
+ void * p;
+
+ p = calloc(1, size);
+ if (!p)
+ abort();
+ return p;
+}
+
+static int
+ne_io_read(nestegg_io * io, void * buffer, size_t length)
+{
+ return io->read(buffer, length, io->userdata);
+}
+
+static int
+ne_io_seek(nestegg_io * io, int64_t offset, int whence)
+{
+ return io->seek(offset, whence, io->userdata);
+}
+
+static int
+ne_io_read_skip(nestegg_io * io, size_t length)
+{
+ size_t get;
+ unsigned char buf[8192];
+ int r = 1;
+
+ while (length > 0) {
+ get = length < sizeof(buf) ? length : sizeof(buf);
+ r = ne_io_read(io, buf, get);
+ if (r != 1)
+ break;
+ length -= get;
+ }
+
+ return r;
+}
+
+static int64_t
+ne_io_tell(nestegg_io * io)
+{
+ return io->tell(io->userdata);
+}
+
+static int
+ne_bare_read_vint(nestegg_io * io, uint64_t * value, uint64_t * length, enum vint_mask maskflag)
+{
+ int r;
+ unsigned char b;
+ size_t maxlen = 8;
+ unsigned int count = 1, mask = 1 << 7;
+
+ r = ne_io_read(io, &b, 1);
+ if (r != 1)
+ return r;
+
+ while (count < maxlen) {
+ if ((b & mask) != 0)
+ break;
+ mask >>= 1;
+ count += 1;
+ }
+
+ if (length)
+ *length = count;
+ *value = b;
+
+ if (maskflag == MASK_FIRST_BIT)
+ *value = b & ~mask;
+
+ while (--count) {
+ r = ne_io_read(io, &b, 1);
+ if (r != 1)
+ return r;
+ *value <<= 8;
+ *value |= b;
+ }
+
+ return 1;
+}
+
+static int
+ne_read_id(nestegg_io * io, uint64_t * value, uint64_t * length)
+{
+ return ne_bare_read_vint(io, value, length, MASK_NONE);
+}
+
+static int
+ne_read_vint(nestegg_io * io, uint64_t * value, uint64_t * length)
+{
+ return ne_bare_read_vint(io, value, length, MASK_FIRST_BIT);
+}
+
+static int
+ne_read_svint(nestegg_io * io, int64_t * value, uint64_t * length)
+{
+ int r;
+ uint64_t uvalue;
+ uint64_t ulength;
+ int64_t svint_subtr[] = {
+ 0x3f, 0x1fff,
+ 0xfffff, 0x7ffffff,
+ 0x3ffffffffLL, 0x1ffffffffffLL,
+ 0xffffffffffffLL, 0x7fffffffffffffLL
+ };
+
+ r = ne_bare_read_vint(io, &uvalue, &ulength, MASK_FIRST_BIT);
+ if (r != 1)
+ return r;
+ *value = uvalue - svint_subtr[ulength - 1];
+ if (length)
+ *length = ulength;
+ return r;
+}
+
+static int
+ne_read_uint(nestegg_io * io, uint64_t * val, uint64_t length)
+{
+ unsigned char b;
+ int r;
+
+ if (length == 0 || length > 8)
+ return -1;
+ r = ne_io_read(io, &b, 1);
+ if (r != 1)
+ return r;
+ *val = b;
+ while (--length) {
+ r = ne_io_read(io, &b, 1);
+ if (r != 1)
+ return r;
+ *val <<= 8;
+ *val |= b;
+ }
+ return 1;
+}
+
+static int
+ne_read_int(nestegg_io * io, int64_t * val, uint64_t length)
+{
+ int r;
+ uint64_t uval, base;
+
+ r = ne_read_uint(io, &uval, length);
+ if (r != 1)
+ return r;
+
+ if (length < sizeof(int64_t)) {
+ base = 1;
+ base <<= length * 8 - 1;
+ if (uval >= base) {
+ base = 1;
+ base <<= length * 8;
+ } else {
+ base = 0;
+ }
+ *val = uval - base;
+ } else {
+ *val = (int64_t) uval;
+ }
+
+ return 1;
+}
+
+static int
+ne_read_float(nestegg_io * io, double * val, uint64_t length)
+{
+ union {
+ uint64_t u;
+ float f;
+ double d;
+ } value;
+ int r;
+
+ /* length == 10 not implemented */
+ if (length != 4 && length != 8)
+ return -1;
+ r = ne_read_uint(io, &value.u, length);
+ if (r != 1)
+ return r;
+ if (length == 4)
+ *val = value.f;
+ else
+ *val = value.d;
+ return 1;
+}
+
+static int
+ne_read_string(nestegg * ctx, char ** val, uint64_t length)
+{
+ char * str;
+ int r;
+
+ if (length == 0 || length > LIMIT_STRING)
+ return -1;
+ str = ne_pool_alloc(length + 1, ctx->alloc_pool);
+ r = ne_io_read(ctx->io, (unsigned char *) str, length);
+ if (r != 1)
+ return r;
+ str[length] = '\0';
+ *val = str;
+ return 1;
+}
+
+static int
+ne_read_binary(nestegg * ctx, struct ebml_binary * val, uint64_t length)
+{
+ if (length == 0 || length > LIMIT_BINARY)
+ return -1;
+ val->data = ne_pool_alloc(length, ctx->alloc_pool);
+ val->length = length;
+ return ne_io_read(ctx->io, val->data, length);
+}
+
+static int
+ne_get_uint(struct ebml_type type, uint64_t * value)
+{
+ if (!type.read)
+ return -1;
+
+ assert(type.type == TYPE_UINT);
+
+ *value = type.v.u;
+
+ return 0;
+}
+
+static int
+ne_get_float(struct ebml_type type, double * value)
+{
+ if (!type.read)
+ return -1;
+
+ assert(type.type == TYPE_FLOAT);
+
+ *value = type.v.f;
+
+ return 0;
+}
+
+static int
+ne_get_string(struct ebml_type type, char ** value)
+{
+ if (!type.read)
+ return -1;
+
+ assert(type.type == TYPE_STRING);
+
+ *value = type.v.s;
+
+ return 0;
+}
+
+static int
+ne_get_binary(struct ebml_type type, struct ebml_binary * value)
+{
+ if (!type.read)
+ return -1;
+
+ assert(type.type == TYPE_BINARY);
+
+ *value = type.v.b;
+
+ return 0;
+}
+
+static int
+ne_is_ancestor_element(uint64_t id, struct list_node * ancestor)
+{
+ struct ebml_element_desc * element;
+
+ for (; ancestor; ancestor = ancestor->previous)
+ for (element = ancestor->node; element->id; ++element)
+ if (element->id == id)
+ return 1;
+
+ return 0;
+}
+
+static struct ebml_element_desc *
+ne_find_element(uint64_t id, struct ebml_element_desc * elements)
+{
+ struct ebml_element_desc * element;
+
+ for (element = elements; element->id; ++element)
+ if (element->id == id)
+ return element;
+
+ return NULL;
+}
+
+static void
+ne_ctx_push(nestegg * ctx, struct ebml_element_desc * ancestor, void * data)
+{
+ struct list_node * item;
+
+ item = ne_alloc(sizeof(*item));
+ item->previous = ctx->ancestor;
+ item->node = ancestor;
+ item->data = data;
+ ctx->ancestor = item;
+}
+
+static void
+ne_ctx_pop(nestegg * ctx)
+{
+ struct list_node * item;
+
+ item = ctx->ancestor;
+ ctx->ancestor = item->previous;
+ free(item);
+}
+
+static int
+ne_ctx_save(nestegg * ctx, struct saved_state * s)
+{
+ s->stream_offset = ne_io_tell(ctx->io);
+ if (s->stream_offset < 0)
+ return -1;
+ s->ancestor = ctx->ancestor;
+ s->last_id = ctx->last_id;
+ s->last_size = ctx->last_size;
+ return 0;
+}
+
+static int
+ne_ctx_restore(nestegg * ctx, struct saved_state * s)
+{
+ int r;
+
+ r = ne_io_seek(ctx->io, s->stream_offset, NESTEGG_SEEK_SET);
+ if (r != 0)
+ return -1;
+ ctx->ancestor = s->ancestor;
+ ctx->last_id = s->last_id;
+ ctx->last_size = s->last_size;
+ return 0;
+}
+
+static int
+ne_peek_element(nestegg * ctx, uint64_t * id, uint64_t * size)
+{
+ int r;
+
+ if (ctx->last_id && ctx->last_size) {
+ if (id)
+ *id = ctx->last_id;
+ if (size)
+ *size = ctx->last_size;
+ return 1;
+ }
+
+ r = ne_read_id(ctx->io, &ctx->last_id, NULL);
+ if (r != 1)
+ return r;
+
+ r = ne_read_vint(ctx->io, &ctx->last_size, NULL);
+ if (r != 1)
+ return r;
+
+ if (id)
+ *id = ctx->last_id;
+ if (size)
+ *size = ctx->last_size;
+
+ return 1;
+}
+
+static int
+ne_read_element(nestegg * ctx, uint64_t * id, uint64_t * size)
+{
+ int r;
+
+ r = ne_peek_element(ctx, id, size);
+ if (r != 1)
+ return r;
+
+ ctx->last_id = 0;
+ ctx->last_size = 0;
+
+ return 1;
+}
+
+static void
+ne_read_master(nestegg * ctx, struct ebml_element_desc * desc)
+{
+ struct ebml_list * list;
+ struct ebml_list_node * node, * oldtail;
+
+ assert(desc->type == TYPE_MASTER && desc->flags & DESC_FLAG_MULTI);
+
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "multi master element %llx (%s)",
+ desc->id, desc->name);
+
+ list = (struct ebml_list *) (ctx->ancestor->data + desc->offset);
+
+ node = ne_pool_alloc(sizeof(*node), ctx->alloc_pool);
+ node->id = desc->id;
+ node->data = ne_pool_alloc(desc->size, ctx->alloc_pool);
+
+ oldtail = list->tail;
+ if (oldtail)
+ oldtail->next = node;
+ list->tail = node;
+ if (!list->head)
+ list->head = node;
+
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, " -> using data %p", node->data);
+
+ ne_ctx_push(ctx, desc->children, node->data);
+}
+
+static void
+ne_read_single_master(nestegg * ctx, struct ebml_element_desc * desc)
+{
+ assert(desc->type == TYPE_MASTER && !(desc->flags & DESC_FLAG_MULTI));
+
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "single master element %llx (%s)",
+ desc->id, desc->name);
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, " -> using data %p (%u)",
+ ctx->ancestor->data + desc->offset, desc->offset);
+
+ ne_ctx_push(ctx, desc->children, ctx->ancestor->data + desc->offset);
+}
+
+static int
+ne_read_simple(nestegg * ctx, struct ebml_element_desc * desc, size_t length)
+{
+ struct ebml_type * storage;
+ int r;
+
+ storage = (struct ebml_type *) (ctx->ancestor->data + desc->offset);
+
+ if (storage->read) {
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "element %llx (%s) already read, skipping",
+ desc->id, desc->name);
+ return 0;
+ }
+
+ storage->type = desc->type;
+
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "element %llx (%s) -> %p (%u)",
+ desc->id, desc->name, storage, desc->offset);
+
+ r = -1;
+
+ switch (desc->type) {
+ case TYPE_UINT:
+ r = ne_read_uint(ctx->io, &storage->v.u, length);
+ break;
+ case TYPE_FLOAT:
+ r = ne_read_float(ctx->io, &storage->v.f, length);
+ break;
+ case TYPE_INT:
+ r = ne_read_int(ctx->io, &storage->v.i, length);
+ break;
+ case TYPE_STRING:
+ r = ne_read_string(ctx, &storage->v.s, length);
+ break;
+ case TYPE_BINARY:
+ r = ne_read_binary(ctx, &storage->v.b, length);
+ break;
+ case TYPE_MASTER:
+ case TYPE_UNKNOWN:
+ assert(0);
+ break;
+ }
+
+ if (r == 1)
+ storage->read = 1;
+
+ return r;
+}
+
+static int
+ne_parse(nestegg * ctx, struct ebml_element_desc * top_level)
+{
+ int r;
+ int64_t * data_offset;
+ uint64_t id, size;
+ struct ebml_element_desc * element;
+
+ /* loop until we need to return:
+ - hit suspend point
+ - parse complete
+ - error occurred */
+
+ /* loop over elements at current level reading them if sublevel found,
+ push ctx onto stack and continue if sublevel ended, pop ctx off stack
+ and continue */
+
+ if (!ctx->ancestor)
+ return -1;
+
+ for (;;) {
+ r = ne_peek_element(ctx, &id, &size);
+ if (r != 1)
+ break;
+
+ element = ne_find_element(id, ctx->ancestor->node);
+ if (element) {
+ if (element->flags & DESC_FLAG_SUSPEND) {
+ assert(element->type == TYPE_BINARY);
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "suspend parse at %llx", id);
+ r = 1;
+ break;
+ }
+
+ r = ne_read_element(ctx, &id, &size);
+ if (r != 1)
+ break;
+
+ if (element->flags & DESC_FLAG_OFFSET) {
+ data_offset = (int64_t *) (ctx->ancestor->data + element->data_offset);
+ *data_offset = ne_io_tell(ctx->io);
+ if (*data_offset < 0) {
+ r = -1;
+ break;
+ }
+ }
+
+ if (element->type == TYPE_MASTER) {
+ if (element->flags & DESC_FLAG_MULTI)
+ ne_read_master(ctx, element);
+ else
+ ne_read_single_master(ctx, element);
+ continue;
+ } else {
+ r = ne_read_simple(ctx, element, size);
+ if (r < 0)
+ break;
+ }
+ } else if (ne_is_ancestor_element(id, ctx->ancestor->previous)) {
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "parent element %llx", id);
+ if (top_level && ctx->ancestor->node == top_level) {
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "*** parse about to back up past top_level");
+ r = 1;
+ break;
+ }
+ ne_ctx_pop(ctx);
+ } else {
+ r = ne_read_element(ctx, &id, &size);
+ if (r != 1)
+ break;
+
+ if (id != ID_VOID && id != ID_CRC32)
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "unknown element %llx", id);
+ r = ne_io_read_skip(ctx->io, size);
+ if (r != 1)
+ break;
+ }
+ }
+
+ if (r != 1)
+ while (ctx->ancestor)
+ ne_ctx_pop(ctx);
+
+ return r;
+}
+
+static uint64_t
+ne_xiph_lace_value(unsigned char ** np)
+{
+ uint64_t lace;
+ uint64_t value;
+ unsigned char * p = *np;
+
+ lace = *p++;
+ value = lace;
+ while (lace == 255) {
+ lace = *p++;
+ value += lace;
+ }
+
+ *np = p;
+
+ return value;
+}
+
+static int
+ne_read_xiph_lace_value(nestegg_io * io, uint64_t * value, size_t * consumed)
+{
+ int r;
+ uint64_t lace;
+
+ r = ne_read_uint(io, &lace, 1);
+ if (r != 1)
+ return r;
+ *consumed += 1;
+
+ *value = lace;
+ while (lace == 255) {
+ r = ne_read_uint(io, &lace, 1);
+ if (r != 1)
+ return r;
+ *consumed += 1;
+ *value += lace;
+ }
+
+ return 1;
+}
+
+static int
+ne_read_xiph_lacing(nestegg_io * io, size_t block, size_t * read, uint64_t n, uint64_t * sizes)
+{
+ int r;
+ size_t i = 0;
+ uint64_t sum = 0;
+
+ while (--n) {
+ r = ne_read_xiph_lace_value(io, &sizes[i], read);
+ if (r != 1)
+ return r;
+ sum += sizes[i];
+ i += 1;
+ }
+
+ if (*read + sum > block)
+ return -1;
+
+ /* last frame is the remainder of the block */
+ sizes[i] = block - *read - sum;
+ return 1;
+}
+
+static int
+ne_read_ebml_lacing(nestegg_io * io, size_t block, size_t * read, uint64_t n, uint64_t * sizes)
+{
+ int r;
+ uint64_t lace, sum, length;
+ int64_t slace;
+ size_t i = 0;
+
+ r = ne_read_vint(io, &lace, &length);
+ if (r != 1)
+ return r;
+ *read += length;
+
+ sizes[i] = lace;
+ sum = sizes[i];
+
+ i += 1;
+ n -= 1;
+
+ while (--n) {
+ r = ne_read_svint(io, &slace, &length);
+ if (r != 1)
+ return r;
+ *read += length;
+ sizes[i] = sizes[i - 1] + slace;
+ sum += sizes[i];
+ i += 1;
+ }
+
+ if (*read + sum > block)
+ return -1;
+
+ /* last frame is the remainder of the block */
+ sizes[i] = block - *read - sum;
+ return 1;
+}
+
+static uint64_t
+ne_get_timecode_scale(nestegg * ctx)
+{
+ uint64_t scale;
+
+ if (ne_get_uint(ctx->segment.info.timecode_scale, &scale) != 0)
+ scale = 1000000;
+
+ return scale;
+}
+
+static struct track_entry *
+ne_find_track_entry(nestegg * ctx, unsigned int track)
+{
+ struct ebml_list_node * node;
+ unsigned int tracks = 0;
+
+ node = ctx->segment.tracks.track_entry.head;
+ while (node) {
+ assert(node->id == ID_TRACK_ENTRY);
+ if (track == tracks)
+ return node->data;
+ tracks += 1;
+ node = node->next;
+ }
+
+ return NULL;
+}
+
+static int
+ne_read_block(nestegg * ctx, uint64_t block_id, uint64_t block_size, nestegg_packet ** data)
+{
+ int r;
+ int64_t timecode, abs_timecode;
+ nestegg_packet * pkt;
+ struct cluster * cluster;
+ struct frame * f, * last;
+ struct track_entry * entry;
+ double track_scale;
+ uint64_t track, length, frame_sizes[256], cluster_tc, flags, frames, tc_scale, total;
+ unsigned int i, lacing;
+ size_t consumed = 0;
+
+ *data = NULL;
+
+ if (block_size > LIMIT_BLOCK)
+ return -1;
+
+ r = ne_read_vint(ctx->io, &track, &length);
+ if (r != 1)
+ return r;
+
+ if (track == 0 || track > ctx->track_count)
+ return -1;
+
+ consumed += length;
+
+ r = ne_read_int(ctx->io, &timecode, 2);
+ if (r != 1)
+ return r;
+
+ consumed += 2;
+
+ r = ne_read_uint(ctx->io, &flags, 1);
+ if (r != 1)
+ return r;
+
+ consumed += 1;
+
+ frames = 0;
+
+ /* flags are different between block and simpleblock, but lacing is
+ encoded the same way */
+ lacing = (flags & BLOCK_FLAGS_LACING) >> 1;
+
+ switch (lacing) {
+ case LACING_NONE:
+ frames = 1;
+ break;
+ case LACING_XIPH:
+ case LACING_FIXED:
+ case LACING_EBML:
+ r = ne_read_uint(ctx->io, &frames, 1);
+ if (r != 1)
+ return r;
+ consumed += 1;
+ frames += 1;
+ }
+
+ if (frames > 256)
+ return -1;
+
+ switch (lacing) {
+ case LACING_NONE:
+ frame_sizes[0] = block_size - consumed;
+ break;
+ case LACING_XIPH:
+ if (frames == 1)
+ return -1;
+ r = ne_read_xiph_lacing(ctx->io, block_size, &consumed, frames, frame_sizes);
+ if (r != 1)
+ return r;
+ break;
+ case LACING_FIXED:
+ if ((block_size - consumed) % frames)
+ return -1;
+ for (i = 0; i < frames; ++i)
+ frame_sizes[i] = (block_size - consumed) / frames;
+ break;
+ case LACING_EBML:
+ if (frames == 1)
+ return -1;
+ r = ne_read_ebml_lacing(ctx->io, block_size, &consumed, frames, frame_sizes);
+ if (r != 1)
+ return r;
+ break;
+ }
+
+ /* sanity check unlaced frame sizes against total block size. */
+ total = consumed;
+ for (i = 0; i < frames; ++i)
+ total += frame_sizes[i];
+ if (total > block_size)
+ return -1;
+
+ entry = ne_find_track_entry(ctx, track - 1);
+ if (!entry)
+ return -1;
+
+ track_scale = 1.0;
+
+ tc_scale = ne_get_timecode_scale(ctx);
+
+ assert(ctx->segment.cluster.tail->id == ID_CLUSTER);
+ cluster = ctx->segment.cluster.tail->data;
+ if (ne_get_uint(cluster->timecode, &cluster_tc) != 0)
+ return -1;
+
+ abs_timecode = timecode + cluster_tc;
+ if (abs_timecode < 0)
+ return -1;
+
+ pkt = ne_alloc(sizeof(*pkt));
+ pkt->track = track - 1;
+ pkt->timecode = abs_timecode * tc_scale * track_scale;
+
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "%sblock t %lld pts %f f %llx frames: %llu",
+ block_id == ID_BLOCK ? "" : "simple", pkt->track, pkt->timecode / 1e9, flags, frames);
+
+ last = NULL;
+ for (i = 0; i < frames; ++i) {
+ if (frame_sizes[i] > LIMIT_FRAME) {
+ nestegg_free_packet(pkt);
+ return -1;
+ }
+ f = ne_alloc(sizeof(*f));
+ f->data = ne_alloc(frame_sizes[i]);
+ f->length = frame_sizes[i];
+ r = ne_io_read(ctx->io, f->data, frame_sizes[i]);
+ if (r != 1) {
+ free(f->data);
+ free(f);
+ nestegg_free_packet(pkt);
+ return -1;
+ }
+
+ if (!last)
+ pkt->frame = f;
+ else
+ last->next = f;
+ last = f;
+ }
+
+ *data = pkt;
+
+ return 1;
+}
+
+static uint64_t
+ne_buf_read_id(unsigned char const * p, size_t length)
+{
+ uint64_t id = 0;
+
+ while (length--) {
+ id <<= 8;
+ id |= *p++;
+ }
+
+ return id;
+}
+
+static struct seek *
+ne_find_seek_for_id(struct ebml_list_node * seek_head, uint64_t id)
+{
+ struct ebml_list * head;
+ struct ebml_list_node * seek;
+ struct ebml_binary binary_id;
+ struct seek * s;
+
+ while (seek_head) {
+ assert(seek_head->id == ID_SEEK_HEAD);
+ head = seek_head->data;
+ seek = head->head;
+
+ while (seek) {
+ assert(seek->id == ID_SEEK);
+ s = seek->data;
+
+ if (ne_get_binary(s->id, &binary_id) == 0 &&
+ ne_buf_read_id(binary_id.data, binary_id.length) == id)
+ return s;
+
+ seek = seek->next;
+ }
+
+ seek_head = seek_head->next;
+ }
+
+ return NULL;
+}
+
+static struct cue_point *
+ne_find_cue_point_for_tstamp(struct ebml_list_node * cue_point, uint64_t scale, uint64_t tstamp)
+{
+ uint64_t time;
+ struct cue_point * c, * prev = NULL;
+
+ while (cue_point) {
+ assert(cue_point->id == ID_CUE_POINT);
+ c = cue_point->data;
+
+ if (!prev)
+ prev = c;
+
+ if (ne_get_uint(c->time, &time) == 0 && time * scale > tstamp)
+ break;
+
+ prev = cue_point->data;
+ cue_point = cue_point->next;
+ }
+
+ return prev;
+}
+
+static int
+ne_is_suspend_element(uint64_t id)
+{
+ /* this could search the tree of elements for DESC_FLAG_SUSPEND */
+ if (id == ID_SIMPLE_BLOCK || id == ID_BLOCK)
+ return 1;
+ return 0;
+}
+
+static void
+ne_null_log_callback(nestegg * ctx, unsigned int severity, char const * fmt, ...)
+{
+ if (ctx && severity && fmt)
+ return;
+}
+
+int
+nestegg_init(nestegg ** context, nestegg_io io, nestegg_log callback)
+{
+ int r;
+ uint64_t id, version, docversion;
+ struct ebml_list_node * track;
+ char * doctype;
+ nestegg * ctx = NULL;
+
+ if (!(io.read && io.seek && io.tell))
+ return -1;
+
+ ctx = ne_alloc(sizeof(*ctx));
+
+ ctx->io = ne_alloc(sizeof(*ctx->io));
+ *ctx->io = io;
+ ctx->log = callback;
+ ctx->alloc_pool = ne_pool_init();
+
+ if (!ctx->log)
+ ctx->log = ne_null_log_callback;
+
+ r = ne_peek_element(ctx, &id, NULL);
+ if (r != 1) {
+ nestegg_destroy(ctx);
+ return -1;
+ }
+
+ if (id != ID_EBML) {
+ nestegg_destroy(ctx);
+ return -1;
+ }
+
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "ctx %p", ctx);
+
+ ne_ctx_push(ctx, ne_top_level_elements, ctx);
+
+ r = ne_parse(ctx, NULL);
+
+ if (r != 1) {
+ nestegg_destroy(ctx);
+ return -1;
+ }
+
+ if (ne_get_uint(ctx->ebml.ebml_read_version, &version) != 0)
+ version = 1;
+ if (version != 1) {
+ nestegg_destroy(ctx);
+ return -1;
+ }
+
+ if (ne_get_string(ctx->ebml.doctype, &doctype) != 0)
+ doctype = "matroska";
+ if (strcmp(doctype, "webm") != 0) {
+ nestegg_destroy(ctx);
+ return -1;
+ }
+
+ if (ne_get_uint(ctx->ebml.doctype_read_version, &docversion) != 0)
+ docversion = 1;
+ if (docversion < 1 || docversion > 2) {
+ nestegg_destroy(ctx);
+ return -1;
+ }
+
+ if (!ctx->segment.tracks.track_entry.head) {
+ nestegg_destroy(ctx);
+ return -1;
+ }
+
+ track = ctx->segment.tracks.track_entry.head;
+ ctx->track_count = 0;
+
+ while (track) {
+ ctx->track_count += 1;
+ track = track->next;
+ }
+
+ *context = ctx;
+
+ return 0;
+}
+
+void
+nestegg_destroy(nestegg * ctx)
+{
+ while (ctx->ancestor)
+ ne_ctx_pop(ctx);
+ ne_pool_destroy(ctx->alloc_pool);
+ free(ctx->io);
+ free(ctx);
+}
+
+int
+nestegg_duration(nestegg * ctx, uint64_t * duration)
+{
+ uint64_t tc_scale;
+ double unscaled_duration;
+
+ if (ne_get_float(ctx->segment.info.duration, &unscaled_duration) != 0)
+ return -1;
+
+ tc_scale = ne_get_timecode_scale(ctx);
+
+ *duration = (uint64_t) (unscaled_duration * tc_scale);
+ return 0;
+}
+
+int
+nestegg_tstamp_scale(nestegg * ctx, uint64_t * scale)
+{
+ *scale = ne_get_timecode_scale(ctx);
+ return 0;
+}
+
+int
+nestegg_track_count(nestegg * ctx, unsigned int * tracks)
+{
+ *tracks = ctx->track_count;
+ return 0;
+}
+
+int
+nestegg_track_seek(nestegg * ctx, unsigned int track, uint64_t tstamp)
+{
+ int r;
+ struct cue_point * cue_point;
+ struct cue_track_positions * pos;
+ struct saved_state state;
+ struct seek * found;
+ uint64_t seek_pos, tc_scale, t, id;
+ struct ebml_list_node * node = ctx->segment.cues.cue_point.head;
+
+ /* If there are no cues loaded, check for cues element in the seek head
+ and load it. */
+ if (!node) {
+ found = ne_find_seek_for_id(ctx->segment.seek_head.head, ID_CUES);
+ if (!found)
+ return -1;
+
+ if (ne_get_uint(found->position, &seek_pos) != 0)
+ return -1;
+
+ /* Save old parser state. */
+ r = ne_ctx_save(ctx, &state);
+ if (r != 0)
+ return -1;
+
+ /* Seek and set up parser state for segment-level element (Cues). */
+ r = ne_io_seek(ctx->io, ctx->segment_offset + seek_pos, NESTEGG_SEEK_SET);
+ if (r != 0)
+ return -1;
+ ctx->last_id = 0;
+ ctx->last_size = 0;
+
+ r = ne_read_element(ctx, &id, NULL);
+ if (r != 1)
+ return -1;
+
+ if (id != ID_CUES)
+ return -1;
+
+ ctx->ancestor = NULL;
+ ne_ctx_push(ctx, ne_top_level_elements, ctx);
+ ne_ctx_push(ctx, ne_segment_elements, &ctx->segment);
+ ne_ctx_push(ctx, ne_cues_elements, &ctx->segment.cues);
+ /* parser will run until end of cues element. */
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "seek: parsing cue elements");
+ r = ne_parse(ctx, ne_cues_elements);
+ while (ctx->ancestor)
+ ne_ctx_pop(ctx);
+
+ /* Reset parser state to original state and seek back to old position. */
+ if (ne_ctx_restore(ctx, &state) != 0)
+ return -1;
+
+ if (r < 0)
+ return -1;
+ }
+
+ tc_scale = ne_get_timecode_scale(ctx);
+
+ cue_point = ne_find_cue_point_for_tstamp(ctx->segment.cues.cue_point.head, tc_scale, tstamp);
+ if (!cue_point)
+ return -1;
+
+ node = cue_point->cue_track_positions.head;
+
+ seek_pos = 0;
+
+ while (node) {
+ assert(node->id == ID_CUE_TRACK_POSITIONS);
+ pos = node->data;
+ if (ne_get_uint(pos->track, &t) == 0 && t - 1 == track) {
+ if (ne_get_uint(pos->cluster_position, &seek_pos) != 0)
+ return -1;
+ break;
+ }
+ node = node->next;
+ }
+
+ /* Seek and set up parser state for segment-level element (Cluster). */
+ r = ne_io_seek(ctx->io, ctx->segment_offset + seek_pos, NESTEGG_SEEK_SET);
+ if (r != 0)
+ return -1;
+ ctx->last_id = 0;
+ ctx->last_size = 0;
+
+ while (ctx->ancestor)
+ ne_ctx_pop(ctx);
+
+ ne_ctx_push(ctx, ne_top_level_elements, ctx);
+ ne_ctx_push(ctx, ne_segment_elements, &ctx->segment);
+ ctx->log(ctx, NESTEGG_LOG_DEBUG, "seek: parsing cluster elements");
+ r = ne_parse(ctx, NULL);
+ if (r != 1)
+ return -1;
+
+ if (!ne_is_suspend_element(ctx->last_id))
+ return -1;
+
+ return 0;
+}
+
+int
+nestegg_track_type(nestegg * ctx, unsigned int track)
+{
+ struct track_entry * entry;
+ uint64_t type;
+
+ entry = ne_find_track_entry(ctx, track);
+ if (!entry)
+ return -1;
+
+ if (ne_get_uint(entry->type, &type) != 0)
+ return -1;
+
+ if (type & TRACK_TYPE_VIDEO)
+ return NESTEGG_TRACK_VIDEO;
+
+ if (type & TRACK_TYPE_AUDIO)
+ return NESTEGG_TRACK_AUDIO;
+
+ return -1;
+}
+
+int
+nestegg_track_codec_id(nestegg * ctx, unsigned int track)
+{
+ char * codec_id;
+ struct track_entry * entry;
+
+ entry = ne_find_track_entry(ctx, track);
+ if (!entry)
+ return -1;
+
+ if (ne_get_string(entry->codec_id, &codec_id) != 0)
+ return -1;
+
+ if (strcmp(codec_id, TRACK_ID_VP8) == 0)
+ return NESTEGG_CODEC_VP8;
+
+ if (strcmp(codec_id, TRACK_ID_VORBIS) == 0)
+ return NESTEGG_CODEC_VORBIS;
+
+ return -1;
+}
+
+int
+nestegg_track_codec_data_count(nestegg * ctx, unsigned int track,
+ unsigned int * count)
+{
+ struct track_entry * entry;
+ struct ebml_binary codec_private;
+ unsigned char * p;
+
+ *count = 0;
+
+ entry = ne_find_track_entry(ctx, track);
+ if (!entry)
+ return -1;
+
+ if (nestegg_track_codec_id(ctx, track) != NESTEGG_CODEC_VORBIS)
+ return -1;
+
+ if (ne_get_binary(entry->codec_private, &codec_private) != 0)
+ return -1;
+
+ if (codec_private.length < 1)
+ return -1;
+
+ p = codec_private.data;
+ *count = *p + 1;
+
+ if (*count > 3)
+ return -1;
+
+ return 0;
+}
+
+int
+nestegg_track_codec_data(nestegg * ctx, unsigned int track, unsigned int item,
+ unsigned char ** data, size_t * length)
+{
+ struct track_entry * entry;
+ struct ebml_binary codec_private;
+ uint64_t sizes[3], total;
+ unsigned char * p;
+ unsigned int count, i;
+
+ *data = NULL;
+ *length = 0;
+
+ entry = ne_find_track_entry(ctx, track);
+ if (!entry)
+ return -1;
+
+ if (nestegg_track_codec_id(ctx, track) != NESTEGG_CODEC_VORBIS)
+ return -1;
+
+ if (ne_get_binary(entry->codec_private, &codec_private) != 0)
+ return -1;
+
+ p = codec_private.data;
+ count = *p++ + 1;
+
+ if (count > 3)
+ return -1;
+
+ i = 0;
+ total = 0;
+ while (--count) {
+ sizes[i] = ne_xiph_lace_value(&p);
+ total += sizes[i];
+ i += 1;
+ }
+ sizes[i] = codec_private.length - total - (p - codec_private.data);
+
+ for (i = 0; i < item; ++i) {
+ if (sizes[i] > LIMIT_FRAME)
+ return -1;
+ p += sizes[i];
+ }
+ *data = p;
+ *length = sizes[item];
+
+ return 0;
+}
+
+int
+nestegg_track_video_params(nestegg * ctx, unsigned int track,
+ nestegg_video_params * params)
+{
+ struct track_entry * entry;
+ uint64_t value;
+
+ memset(params, 0, sizeof(*params));
+
+ entry = ne_find_track_entry(ctx, track);
+ if (!entry)
+ return -1;
+
+ if (nestegg_track_type(ctx, track) != NESTEGG_TRACK_VIDEO)
+ return -1;
+
+ if (ne_get_uint(entry->video.pixel_width, &value) != 0)
+ return -1;
+ params->width = value;
+
+ if (ne_get_uint(entry->video.pixel_height, &value) != 0)
+ return -1;
+ params->height = value;
+
+ value = 0;
+ ne_get_uint(entry->video.pixel_crop_bottom, &value);
+ params->crop_bottom = value;
+
+ value = 0;
+ ne_get_uint(entry->video.pixel_crop_top, &value);
+ params->crop_top = value;
+
+ value = 0;
+ ne_get_uint(entry->video.pixel_crop_left, &value);
+ params->crop_left = value;
+
+ value = 0;
+ ne_get_uint(entry->video.pixel_crop_right, &value);
+ params->crop_right = value;
+
+ value = params->width;
+ ne_get_uint(entry->video.display_width, &value);
+ params->display_width = value;
+
+ value = params->height;
+ ne_get_uint(entry->video.display_height, &value);
+ params->display_height = value;
+
+ return 0;
+}
+
+int
+nestegg_track_audio_params(nestegg * ctx, unsigned int track,
+ nestegg_audio_params * params)
+{
+ struct track_entry * entry;
+ uint64_t value;
+
+ memset(params, 0, sizeof(*params));
+
+ entry = ne_find_track_entry(ctx, track);
+ if (!entry)
+ return -1;
+
+ if (nestegg_track_type(ctx, track) != NESTEGG_TRACK_AUDIO)
+ return -1;
+
+ params->rate = 8000;
+ ne_get_float(entry->audio.sampling_frequency, ¶ms->rate);
+
+ value = 1;
+ ne_get_uint(entry->audio.channels, &value);
+ params->channels = value;
+
+ value = 16;
+ ne_get_uint(entry->audio.bit_depth, &value);
+ params->depth = value;
+
+ return 0;
+}
+
+int
+nestegg_read_packet(nestegg * ctx, nestegg_packet ** pkt)
+{
+ int r;
+ uint64_t id, size;
+
+ *pkt = NULL;
+
+ for (;;) {
+ r = ne_peek_element(ctx, &id, &size);
+ if (r != 1)
+ return r;
+
+ /* any suspend fields must be handled here */
+ if (ne_is_suspend_element(id)) {
+ r = ne_read_element(ctx, &id, &size);
+ if (r != 1)
+ return r;
+
+ /* the only suspend fields are blocks and simple blocks, which we
+ handle directly. */
+ r = ne_read_block(ctx, id, size, pkt);
+ return r;
+ }
+
+ r = ne_parse(ctx, NULL);
+ if (r != 1)
+ return r;
+ }
+
+ return 1;
+}
+
+void
+nestegg_free_packet(nestegg_packet * pkt)
+{
+ struct frame * frame;
+
+ while (pkt->frame) {
+ frame = pkt->frame;
+ pkt->frame = frame->next;
+ free(frame->data);
+ free(frame);
+ }
+
+ free(pkt);
+}
+
+int
+nestegg_packet_track(nestegg_packet * pkt, unsigned int * track)
+{
+ *track = pkt->track;
+ return 0;
+}
+
+int
+nestegg_packet_tstamp(nestegg_packet * pkt, uint64_t * tstamp)
+{
+ *tstamp = pkt->timecode;
+ return 0;
+}
+
+int
+nestegg_packet_count(nestegg_packet * pkt, unsigned int * count)
+{
+ struct frame * f = pkt->frame;
+
+ *count = 0;
+
+ while (f) {
+ *count += 1;
+ f = f->next;
+ }
+
+ return 0;
+}
+
+int
+nestegg_packet_data(nestegg_packet * pkt, unsigned int item,
+ unsigned char ** data, size_t * length)
+{
+ struct frame * f = pkt->frame;
+ unsigned int count = 0;
+
+ *data = NULL;
+ *length = 0;
+
+ while (f) {
+ if (count == item) {
+ *data = f->data;
+ *length = f->length;
+ return 0;
+ }
+ count += 1;
+ f = f->next;
+ }
+
+ return -1;
+}
--- /dev/null
+/*
+ * Copyright © 2010 Mozilla Foundation
+ *
+ * This program is made available under an ISC-style license. See the
+ * accompanying file LICENSE for details.
+ */
+#include <assert.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include "nestegg/nestegg.h"
+
+#undef DEBUG
+#define SEEK_TEST
+
+static int
+stdio_read(void * p, size_t length, void * fp)
+{
+ size_t r;
+
+ r = fread(p, length, 1, fp);
+ if (r == 0 && feof(fp))
+ return 0;
+ return r == 0 ? -1 : 1;
+}
+
+static int
+stdio_seek(int64_t offset, int whence, void * fp)
+{
+ return fseek(fp, offset, whence);
+}
+
+static int64_t
+stdio_tell(void * fp)
+{
+ return ftell(fp);
+}
+
+static void
+log_callback(nestegg * ctx, unsigned int severity, char const * fmt, ...)
+{
+ va_list ap;
+ char const * sev = NULL;
+
+#ifndef DEBUG
+ if (severity < NESTEGG_LOG_WARNING)
+ return;
+#endif
+
+ switch (severity) {
+ case NESTEGG_LOG_DEBUG:
+ sev = "debug: ";
+ break;
+ case NESTEGG_LOG_WARNING:
+ sev = "warning: ";
+ break;
+ case NESTEGG_LOG_CRITICAL:
+ sev = "critical:";
+ break;
+ default:
+ sev = "unknown: ";
+ }
+
+ fprintf(stderr, "%p %s ", (void *) ctx, sev);
+
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+
+ fprintf(stderr, "\n");
+}
+
+int
+main(int argc, char * argv[])
+{
+ FILE * fp;
+ int r, type;
+ nestegg * ctx;
+ nestegg_audio_params aparams;
+ nestegg_packet * pkt;
+ nestegg_video_params vparams;
+ size_t length, size;
+ uint64_t duration, tstamp, pkt_tstamp;
+ unsigned char * codec_data, * ptr;
+ unsigned int cnt, i, j, track, tracks, pkt_cnt, pkt_track;
+ unsigned int data_items = 0;
+ nestegg_io io = {
+ stdio_read,
+ stdio_seek,
+ stdio_tell,
+ NULL
+ };
+
+ if (argc != 2)
+ return EXIT_FAILURE;
+
+ fp = fopen(argv[1], "rb");
+ if (!fp)
+ return EXIT_FAILURE;
+
+ io.userdata = fp;
+
+ ctx = NULL;
+ r = nestegg_init(&ctx, io, log_callback);
+ if (r != 0)
+ return EXIT_FAILURE;
+
+ nestegg_track_count(ctx, &tracks);
+ nestegg_duration(ctx, &duration);
+#ifdef DEBUG
+ fprintf(stderr, "media has %u tracks and duration %fs\n", tracks, duration / 1e9);
+#endif
+
+ for (i = 0; i < tracks; ++i) {
+ type = nestegg_track_type(ctx, i);
+#ifdef DEBUG
+ fprintf(stderr, "track %u: type: %d codec: %d", i,
+ type, nestegg_track_codec_id(ctx, i));
+#endif
+ nestegg_track_codec_data_count(ctx, i, &data_items);
+ for (j = 0; j < data_items; ++j) {
+ nestegg_track_codec_data(ctx, i, j, &codec_data, &length);
+#ifdef DEBUG
+ fprintf(stderr, " (%p, %u)", codec_data, (unsigned int) length);
+#endif
+ }
+ if (type == NESTEGG_TRACK_VIDEO) {
+ nestegg_track_video_params(ctx, i, &vparams);
+#ifdef DEBUG
+ fprintf(stderr, " video: %ux%u (d: %ux%u %ux%ux%ux%u)",
+ vparams.width, vparams.height,
+ vparams.display_width, vparams.display_height,
+ vparams.crop_top, vparams.crop_left, vparams.crop_bottom, vparams.crop_right);
+#endif
+ } else if (type == NESTEGG_TRACK_AUDIO) {
+ nestegg_track_audio_params(ctx, i, &aparams);
+#ifdef DEBUG
+ fprintf(stderr, " audio: %.2fhz %u bit %u channels",
+ aparams.rate, aparams.depth, aparams.channels);
+#endif
+ }
+#ifdef DEBUG
+ fprintf(stderr, "\n");
+#endif
+ }
+
+#ifdef SEEK_TEST
+#ifdef DEBUG
+ fprintf(stderr, "seek to middle\n");
+#endif
+ r = nestegg_track_seek(ctx, 0, duration / 2);
+ if (r == 0) {
+#ifdef DEBUG
+ fprintf(stderr, "middle ");
+#endif
+ r = nestegg_read_packet(ctx, &pkt);
+ if (r == 1) {
+ nestegg_packet_track(pkt, &track);
+ nestegg_packet_count(pkt, &cnt);
+ nestegg_packet_tstamp(pkt, &tstamp);
+#ifdef DEBUG
+ fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);
+#endif
+ nestegg_free_packet(pkt);
+ } else {
+#ifdef DEBUG
+ fprintf(stderr, "middle seek failed\n");
+#endif
+ }
+ }
+
+#ifdef DEBUG
+ fprintf(stderr, "seek to ~end\n");
+#endif
+ r = nestegg_track_seek(ctx, 0, duration - (duration / 10));
+ if (r == 0) {
+#ifdef DEBUG
+ fprintf(stderr, "end ");
+#endif
+ r = nestegg_read_packet(ctx, &pkt);
+ if (r == 1) {
+ nestegg_packet_track(pkt, &track);
+ nestegg_packet_count(pkt, &cnt);
+ nestegg_packet_tstamp(pkt, &tstamp);
+#ifdef DEBUG
+ fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);
+#endif
+ nestegg_free_packet(pkt);
+ } else {
+#ifdef DEBUG
+ fprintf(stderr, "end seek failed\n");
+#endif
+ }
+ }
+
+#ifdef DEBUG
+ fprintf(stderr, "seek to ~start\n");
+#endif
+ r = nestegg_track_seek(ctx, 0, duration / 10);
+ if (r == 0) {
+#ifdef DEBUG
+ fprintf(stderr, "start ");
+#endif
+ r = nestegg_read_packet(ctx, &pkt);
+ if (r == 1) {
+ nestegg_packet_track(pkt, &track);
+ nestegg_packet_count(pkt, &cnt);
+ nestegg_packet_tstamp(pkt, &tstamp);
+#ifdef DEBUG
+ fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);
+#endif
+ nestegg_free_packet(pkt);
+ } else {
+#ifdef DEBUG
+ fprintf(stderr, "start seek failed\n");
+#endif
+ }
+ }
+#endif
+
+ while (nestegg_read_packet(ctx, &pkt) > 0) {
+ nestegg_packet_track(pkt, &pkt_track);
+ nestegg_packet_count(pkt, &pkt_cnt);
+ nestegg_packet_tstamp(pkt, &pkt_tstamp);
+
+#ifdef DEBUG
+ fprintf(stderr, "t %u pts %f frames %u: ", pkt_track, pkt_tstamp / 1e9, pkt_cnt);
+#endif
+
+ for (i = 0; i < pkt_cnt; ++i) {
+ nestegg_packet_data(pkt, i, &ptr, &size);
+#ifdef DEBUG
+ fprintf(stderr, "%u ", (unsigned int) size);
+#endif
+ }
+#ifdef DEBUG
+ fprintf(stderr, "\n");
+#endif
+
+ nestegg_free_packet(pkt);
+ }
+
+ nestegg_destroy(ctx);
+ fclose(fp);
+
+ return EXIT_SUCCESS;
+}
projects / profile / ivi / libvpx.git / commitdiff