From 20c9770cc68d165a0cb7b8a332103b9659b29e4c Mon Sep 17 00:00:00 2001 From: Mike Whitson Date: Tue, 13 Jul 1999 06:50:33 +0000 Subject: [PATCH] Initial revision svn path=/trunk/vorbis/; revision=1 --- Makefile.in | 65 ++ README | 70 ++ configure | 2844 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ configure.in | 184 ++++ configure.sub | 867 +++++++++++++++++ doc/framing.txt | 293 ++++++ install.sh | 0 lib/analysis.c | 311 ++++++ lib/codec.h | 167 ++++ lib/envelope.c | 205 ++++ lib/framing.c | 646 +++++++++++++ lib/mdct.c | 351 +++++++ lib/mdct.h | 47 + 13 files changed, 6050 insertions(+) create mode 100644 Makefile.in create mode 100644 README create mode 100755 configure create mode 100644 configure.in create mode 100755 configure.sub create mode 100644 doc/framing.txt create mode 100644 install.sh create mode 100644 lib/analysis.c create mode 100644 lib/codec.h create mode 100644 lib/envelope.c create mode 100644 lib/framing.c create mode 100644 lib/mdct.c create mode 100644 lib/mdct.h diff --git a/Makefile.in b/Makefile.in new file mode 100644 index 0000000..40971ca --- /dev/null +++ b/Makefile.in @@ -0,0 +1,65 @@ +# vorbis makefile configured for use with gcc on any platform + +############################################################################### +# # +# To build a production vorbis (preferrably using gmake), just type 'make'. # +# To build with debugging or profiling information, use 'make debug' or # +# 'make profile' respectively. 'make clean' is a good idea between builds # +# with different target names, or before a final build. # +# # +############################################################################### + + +# DO NOT EDIT BELOW! ########################################################## +# (unless, of course, you know what you are doing :) ########################## + +@SET_MAKE@ +FLAGS=@TYPESIZES@ @CFLAGS@ +OPT=@OPT@ $(FLAGS) +DEBUG=@DEBUG@ $(FLAGS) +PROFILE=@PROFILE@ $(FLAGS) +CC=@CC@ +LD=@CC@ +LDFLAGS=@LDFLAGS@ $(FLAGS) +AR=@AR@ +RANLIB=@RANLIB@ +LIBS=@LIBS@ @pthread_lib@ -lm + +OFILES = framing.o +TARGETFILES = main.o $(OFILES) + +all: + $(MAKE) target CFLAGS="$(OPT)" + +debug: + $(MAKE) target CFLAGS="$(DEBUG)" + +profile: + $(MAKE) target CFLAGS="$(PROFILE)" + +selftest: + $(MAKE) clean + $(CC) $(DEBUG) $(LDFLAGS) -D_V_SELFTEST framing.c -o test_framing + @echo + @./test_framing + +target: $(TARGETFILES) libvorbis.a + $(LD) $(CFLAGS) $(TARGETFILES) $(LDFLAGS) libvorbis.a -o ogg $(LIBS) + +libvorbis.a: $(OFILES) + $(AR) -r libvorbis.a $(OFILES) + $(RANLIB) libvorbis.a + +$(OFILES): mdct.h + +.c.o: + $(CC) $(CFLAGS) -c $< + +clean: + -rm -f *.o *.a test* *~ *.out ogg config.* + + + + + + diff --git a/README b/README new file mode 100644 index 0000000..35be949 --- /dev/null +++ b/README @@ -0,0 +1,70 @@ +******************************************************************** +* * +* THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE. * +* USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY * +* THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE. * +* PLEASE READ THESE TERMS DISTRIBUTING. * +* * +* THE OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-1999 * +* by Monty and The XIPHOPHORUS Company * +* http://www.xiph.org/ * +* * +******************************************************************** + +WHAT'S HERE: + +This source distribution includes libvorbis, a full-featured example +encoder/player to demonstrate use of libvorbis and documentation on +the Ogg Vorbis audio coding format. + +Directory: + +./lib The source for libvorbis, a GPLed inplementation of + the public domain OggSquish Vorbis audio encoding + format. + +./cmdline A full-featured command line encoder/decoder/player + utility ('vorbis') that demonstrates programmatic use + of libvorbis. + +./docs Vorbis specification documents + +WHAT IS VORBIS: + +Vorbis is a general purpose audio and music encoding format +contemporary to MPEG-4's AAC and TwinVQ, the next generation beyond +MPEG audio layer 3. Unlike the MPEG sponsored formats (and other +proprietary formats such as RealAudio G2 and Windows' flavor of the +month), the Vorbis CODEC specification belongs to the public domain. +All the technical details are published and documented, and any +software entity may make full use of the format without royalty or +patent concerns. + +This package contains libvorbis, a GPLed software implementation of +the Vorbis specification by the Xiphophorus company (http://www.xiph.org/). + +CONTACT: + +The OggSquish homepage is located at 'http://www.xiph.org/OggSquish'. +Vorbis's homepage is located at 'http://www.xiph.org/OggSquish/vorbis.html'. +Up to date technical documents, contact information, source code and +pre-built utilities may be found there. + +BUILD: + +A standard build should consist of nothing more than: + +./configure +./make + +and as root if desired : + +./make install + +This will install the ogg vorbis commandline encoder/player ('ogg') +into /usr/local/bin, the ogg player and libvorbis manpages into +/usr/local/man/ and libvorbis.a into /usr/local/lib. + +Monty , + +$Id: README,v 1.1 1999/07/13 06:50:34 mwhitson Exp $ diff --git a/configure b/configure new file mode 100755 index 0000000..3c9115f --- /dev/null +++ b/configure @@ -0,0 +1,2844 @@ +#! /bin/sh + +# Guess values for system-dependent variables and create Makefiles. +# Generated automatically using autoconf version 2.12 +# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc. +# +# This configure script is free software; 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+ -no-recursion | --no-recursion | --no-recursio | --no-recursi \ + | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;; + *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*) + ac_configure_args="$ac_configure_args '$ac_arg'" ;; + *) ac_configure_args="$ac_configure_args $ac_arg" ;; + esac +done + +# NLS nuisances. +# Only set these to C if already set. These must not be set unconditionally +# because not all systems understand e.g. LANG=C (notably SCO). +# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'! +# Non-C LC_CTYPE values break the ctype check. +if test "${LANG+set}" = set; then LANG=C; export LANG; fi +if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi +if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi +if test "${LC_CTYPE+set}" = set; then LC_CTYPE=C; export LC_CTYPE; fi + +# confdefs.h avoids OS command line length limits that DEFS can exceed. +rm -rf conftest* confdefs.h +# AIX cpp loses on an empty file, so make sure it contains at least a newline. +echo > confdefs.h + +# A filename unique to this package, relative to the directory that +# configure is in, which we can look for to find out if srcdir is correct. +ac_unique_file=mdct.c + +# Find the source files, if location was not specified. +if test -z "$srcdir"; then + ac_srcdir_defaulted=yes + # Try the directory containing this script, then its parent. + ac_prog=$0 + ac_confdir=`echo $ac_prog|sed 's%/[^/][^/]*$%%'` + test "x$ac_confdir" = "x$ac_prog" && ac_confdir=. + srcdir=$ac_confdir + if test ! -r $srcdir/$ac_unique_file; then + srcdir=.. + fi +else + ac_srcdir_defaulted=no +fi +if test ! -r $srcdir/$ac_unique_file; then + if test "$ac_srcdir_defaulted" = yes; then + { echo "configure: error: can not find sources in $ac_confdir or .." 1>&2; exit 1; } + else + { echo "configure: error: can not find sources in $srcdir" 1>&2; exit 1; } + fi +fi +srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'` + +# Prefer explicitly selected file to automatically selected ones. +if test -z "$CONFIG_SITE"; then + if test "x$prefix" != xNONE; then + CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site" + else + CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site" + fi +fi +for ac_site_file in $CONFIG_SITE; do + if test -r "$ac_site_file"; then + echo "loading site script $ac_site_file" + . "$ac_site_file" + fi +done + +if test -r "$cache_file"; then + echo "loading cache $cache_file" + . $cache_file +else + echo "creating cache $cache_file" + > $cache_file +fi + +ac_ext=c +# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options. +ac_cpp='$CPP $CPPFLAGS' +ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5' +ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5' +cross_compiling=$ac_cv_prog_cc_cross + +if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then + # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu. + if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then + ac_n= ac_c=' +' ac_t=' ' + else + ac_n=-n ac_c= ac_t= + fi +else + ac_n= ac_c='\c' ac_t= +fi + + +#AC_CONFIG_HEADER(config.h) + +cp configure.guess config.guess +cp configure.sub config.sub + +ac_aux_dir= +for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do + if test -f $ac_dir/install-sh; then + ac_aux_dir=$ac_dir + ac_install_sh="$ac_aux_dir/install-sh -c" + break + elif test -f $ac_dir/install.sh; then + ac_aux_dir=$ac_dir + ac_install_sh="$ac_aux_dir/install.sh -c" + break + fi +done +if test -z "$ac_aux_dir"; then + { echo "configure: error: can not find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." 1>&2; exit 1; } +fi +ac_config_guess=$ac_aux_dir/config.guess +ac_config_sub=$ac_aux_dir/config.sub +ac_configure=$ac_aux_dir/configure # This should be Cygnus configure. + + +# Make sure we can run config.sub. +if $ac_config_sub sun4 >/dev/null 2>&1; then : +else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; } +fi + +echo $ac_n "checking host system type""... $ac_c" 1>&6 +echo "configure:555: checking host system type" >&5 + +host_alias=$host +case "$host_alias" in +NONE) + case $nonopt in + NONE) + if host_alias=`$ac_config_guess`; then : + else { echo "configure: error: can not guess host type; you must specify one" 1>&2; exit 1; } + fi ;; + *) host_alias=$nonopt ;; + esac ;; +esac + +host=`$ac_config_sub $host_alias` +host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'` +host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'` +host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'` +echo "$ac_t""$host" 1>&6 + + +case $host + in *-*-irix*) + if test -z "$CC"; then + CC=cc + fi + echo $ac_n "checking for ALwritesamps in -laudio""... $ac_c" 1>&6 +echo "configure:582: checking for ALwritesamps in -laudio" >&5 +ac_lib_var=`echo audio'_'ALwritesamps | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-laudio $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + ac_tr_lib=HAVE_LIB`echo audio | sed -e 's/[^a-zA-Z0-9_]/_/g' \ + -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'` + cat >> confdefs.h <&6 +fi + + ;; +esac + +if test -z "$CC"; then + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 +echo "configure:635: checking for $ac_word" >&5 +if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" + for ac_dir in $PATH; do + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/$ac_word; then + ac_cv_prog_CC="gcc" + break + fi + done + IFS="$ac_save_ifs" +fi +fi +CC="$ac_cv_prog_CC" +if test -n "$CC"; then + echo "$ac_t""$CC" 1>&6 +else + echo "$ac_t""no" 1>&6 +fi + +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 +echo "configure:664: checking for $ac_word" >&5 +if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" + ac_prog_rejected=no + for ac_dir in $PATH; do + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/$ac_word; then + if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + break + fi + done + IFS="$ac_save_ifs" +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# -gt 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + set dummy "$ac_dir/$ac_word" "$@" + shift + ac_cv_prog_CC="$@" + fi +fi +fi +fi +CC="$ac_cv_prog_CC" +if test -n "$CC"; then + echo "$ac_t""$CC" 1>&6 +else + echo "$ac_t""no" 1>&6 +fi + + test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; } +fi + +echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6 +echo "configure:712: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5 + +ac_ext=c +# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options. +ac_cpp='$CPP $CPPFLAGS' +ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5' +ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5' +cross_compiling=$ac_cv_prog_cc_cross + +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + ac_cv_prog_cc_works=yes + # If we can't run a trivial program, we are probably using a cross compiler. + if (./conftest; exit) 2>/dev/null; then + ac_cv_prog_cc_cross=no + else + ac_cv_prog_cc_cross=yes + fi +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + ac_cv_prog_cc_works=no +fi +rm -fr conftest* + +echo "$ac_t""$ac_cv_prog_cc_works" 1>&6 +if test $ac_cv_prog_cc_works = no; then + { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; } +fi +echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6 +echo "configure:746: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5 +echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6 +cross_compiling=$ac_cv_prog_cc_cross + +echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6 +echo "configure:751: checking whether we are using GNU C" >&5 +if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.c <&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then + ac_cv_prog_gcc=yes +else + ac_cv_prog_gcc=no +fi +fi + +echo "$ac_t""$ac_cv_prog_gcc" 1>&6 + +if test $ac_cv_prog_gcc = yes; then + GCC=yes + ac_test_CFLAGS="${CFLAGS+set}" + ac_save_CFLAGS="$CFLAGS" + CFLAGS= + echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6 +echo "configure:775: checking whether ${CC-cc} accepts -g" >&5 +if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + echo 'void f(){}' > conftest.c +if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then + ac_cv_prog_cc_g=yes +else + ac_cv_prog_cc_g=no +fi +rm -f conftest* + +fi + +echo "$ac_t""$ac_cv_prog_cc_g" 1>&6 + if test "$ac_test_CFLAGS" = set; then + CFLAGS="$ac_save_CFLAGS" + elif test $ac_cv_prog_cc_g = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-O2" + fi +else + GCC= + test "${CFLAGS+set}" = set || CFLAGS="-g" +fi + +fi +# Extract the first word of "ranlib", so it can be a program name with args. +set dummy ranlib; ac_word=$2 +echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 +echo "configure:806: checking for $ac_word" >&5 +if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test -n "$RANLIB"; then + ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. +else + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" + for ac_dir in $PATH; do + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/$ac_word; then + ac_cv_prog_RANLIB="ranlib" + break + fi + done + IFS="$ac_save_ifs" + test -z "$ac_cv_prog_RANLIB" && ac_cv_prog_RANLIB=":" +fi +fi +RANLIB="$ac_cv_prog_RANLIB" +if test -n "$RANLIB"; then + echo "$ac_t""$RANLIB" 1>&6 +else + echo "$ac_t""no" 1>&6 +fi + +# Extract the first word of "ar", so it can be a program name with args. +set dummy ar; ac_word=$2 +echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 +echo "configure:835: checking for $ac_word" >&5 +if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test -n "$AR"; then + ac_cv_prog_AR="$AR" # Let the user override the test. +else + IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:" + for ac_dir in $PATH; do + test -z "$ac_dir" && ac_dir=. + if test -f $ac_dir/$ac_word; then + ac_cv_prog_AR="ar" + break + fi + done + IFS="$ac_save_ifs" +fi +fi +AR="$ac_cv_prog_AR" +if test -n "$AR"; then + echo "$ac_t""$AR" 1>&6 +else + echo "$ac_t""no" 1>&6 +fi + + +if test -z "$GCC"; then + case $host in + *-*-irix*) + DEBUG="-g" + OPT="-O2 -w" + PROFILE="-p -g3 -O2" ;; + sparc-sun-solaris*) + DEBUG="-v -g" + OPT="-xO4 -fast -w -fsingle -fsimple -native -xcg92" + PROFILE="-v -xpg -g -xO4 -fast -fsingle -native -fsimple -xcg92 -Dsuncc" ;; + *) + DEBUG="-g" + OPT="-O" + PROFILE="-g -p" ;; + esac +else + case $host in + i?86-*-linux*) + DEBUG="-g -Wall -fsigned-char" + OPT="-O20 -ffast-math -fsigned-char" + PROFILE="-pg -g -O20 -fsigned-char";; + sparc-sun-*) + DEBUG="-g -Wall -fsigned-char -mv8" + OPT="-O20 -ffast-math -fsigned-char -mv8" + PROFILE="-pg -g -O20 -fsigned-char -mv8" ;; + *) + DEBUG="-g -Wall -fsigned-char" + OPT="-O20 -fsigned-char" + PROFILE="-O20 -g -pg -fsigned-char" ;; + esac +fi + +echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6 +echo "configure:894: checking how to run the C preprocessor" >&5 +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then +if eval "test \"`echo '$''{'ac_cv_prog_CPP'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + # This must be in double quotes, not single quotes, because CPP may get + # substituted into the Makefile and "${CC-cc}" will confuse make. + CPP="${CC-cc} -E" + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. + cat > conftest.$ac_ext < +Syntax Error +EOF +ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" +{ (eval echo configure:915: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } +ac_err=`grep -v '^ *+' conftest.out` +if test -z "$ac_err"; then + : +else + echo "$ac_err" >&5 + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + CPP="${CC-cc} -E -traditional-cpp" + cat > conftest.$ac_ext < +Syntax Error +EOF +ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" +{ (eval echo configure:932: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } +ac_err=`grep -v '^ *+' conftest.out` +if test -z "$ac_err"; then + : +else + echo "$ac_err" >&5 + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + CPP=/lib/cpp +fi +rm -f conftest* +fi +rm -f conftest* + ac_cv_prog_CPP="$CPP" +fi + CPP="$ac_cv_prog_CPP" +else + ac_cv_prog_CPP="$CPP" +fi +echo "$ac_t""$CPP" 1>&6 + +echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6 +echo "configure:955: checking for ANSI C header files" >&5 +if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +#include +#include +#include +EOF +ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" +{ (eval echo configure:968: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } +ac_err=`grep -v '^ *+' conftest.out` +if test -z "$ac_err"; then + rm -rf conftest* + ac_cv_header_stdc=yes +else + echo "$ac_err" >&5 + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + ac_cv_header_stdc=no +fi +rm -f conftest* + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. +cat > conftest.$ac_ext < +EOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + egrep "memchr" >/dev/null 2>&1; then + : +else + rm -rf conftest* + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. +cat > conftest.$ac_ext < +EOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + egrep "free" >/dev/null 2>&1; then + : +else + rm -rf conftest* + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. +if test "$cross_compiling" = yes; then + : +else + cat > conftest.$ac_ext < +#define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +#define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int main () { int i; for (i = 0; i < 256; i++) +if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2); +exit (0); } + +EOF +if { (eval echo configure:1035: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null +then + : +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -fr conftest* + ac_cv_header_stdc=no +fi +rm -fr conftest* +fi + +fi +fi + +echo "$ac_t""$ac_cv_header_stdc" 1>&6 +if test $ac_cv_header_stdc = yes; then + cat >> confdefs.h <<\EOF +#define STDC_HEADERS 1 +EOF + +fi + + +CFLAGS="" + +# If we find X, set shell vars x_includes and x_libraries to the +# paths, otherwise set no_x=yes. +# Uses ac_ vars as temps to allow command line to override cache and checks. +# --without-x overrides everything else, but does not touch the cache. +echo $ac_n "checking for X""... $ac_c" 1>&6 +echo "configure:1066: checking for X" >&5 + +# Check whether --with-x or --without-x was given. +if test "${with_x+set}" = set; then + withval="$with_x" + : +fi + +# $have_x is `yes', `no', `disabled', or empty when we do not yet know. +if test "x$with_x" = xno; then + # The user explicitly disabled X. + have_x=disabled +else + if test "x$x_includes" != xNONE && test "x$x_libraries" != xNONE; then + # Both variables are already set. + have_x=yes + else +if eval "test \"`echo '$''{'ac_cv_have_x'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + # One or both of the vars are not set, and there is no cached value. +ac_x_includes=NO ac_x_libraries=NO +rm -fr conftestdir +if mkdir conftestdir; then + cd conftestdir + # Make sure to not put "make" in the Imakefile rules, since we grep it out. + cat > Imakefile <<'EOF' +acfindx: + @echo 'ac_im_incroot="${INCROOT}"; ac_im_usrlibdir="${USRLIBDIR}"; ac_im_libdir="${LIBDIR}"' +EOF + if (xmkmf) >/dev/null 2>/dev/null && test -f Makefile; then + # GNU make sometimes prints "make[1]: Entering...", which would confuse us. + eval `${MAKE-make} acfindx 2>/dev/null | grep -v make` + # Open Windows xmkmf reportedly sets LIBDIR instead of USRLIBDIR. + for ac_extension in a so sl; do + if test ! -f $ac_im_usrlibdir/libX11.$ac_extension && + test -f $ac_im_libdir/libX11.$ac_extension; then + ac_im_usrlibdir=$ac_im_libdir; break + fi + done + # Screen out bogus values from the imake configuration. They are + # bogus both because they are the default anyway, and because + # using them would break gcc on systems where it needs fixed includes. + case "$ac_im_incroot" in + /usr/include) ;; + *) test -f "$ac_im_incroot/X11/Xos.h" && ac_x_includes="$ac_im_incroot" ;; + esac + case "$ac_im_usrlibdir" in + /usr/lib | /lib) ;; + *) test -d "$ac_im_usrlibdir" && ac_x_libraries="$ac_im_usrlibdir" ;; + esac + fi + cd .. + rm -fr conftestdir +fi + +if test "$ac_x_includes" = NO; then + # Guess where to find include files, by looking for this one X11 .h file. + test -z "$x_direct_test_include" && x_direct_test_include=X11/Intrinsic.h + + # First, try using that file with no special directory specified. +cat > conftest.$ac_ext < +EOF +ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" +{ (eval echo configure:1133: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } +ac_err=`grep -v '^ *+' conftest.out` +if test -z "$ac_err"; then + rm -rf conftest* + # We can compile using X headers with no special include directory. +ac_x_includes= +else + echo "$ac_err" >&5 + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + # Look for the header file in a standard set of common directories. +# Check X11 before X11Rn because it is often a symlink to the current release. + for ac_dir in \ + /usr/X11/include \ + /usr/X11R6/include \ + /usr/X11R5/include \ + /usr/X11R4/include \ + \ + /usr/include/X11 \ + /usr/include/X11R6 \ + /usr/include/X11R5 \ + /usr/include/X11R4 \ + \ + /usr/local/X11/include \ + /usr/local/X11R6/include \ + /usr/local/X11R5/include \ + /usr/local/X11R4/include \ + \ + /usr/local/include/X11 \ + /usr/local/include/X11R6 \ + /usr/local/include/X11R5 \ + /usr/local/include/X11R4 \ + \ + /usr/X386/include \ + /usr/x386/include \ + /usr/XFree86/include/X11 \ + \ + /usr/include \ + /usr/local/include \ + /usr/unsupported/include \ + /usr/athena/include \ + /usr/local/x11r5/include \ + /usr/lpp/Xamples/include \ + \ + /usr/openwin/include \ + /usr/openwin/share/include \ + ; \ + do + if test -r "$ac_dir/$x_direct_test_include"; then + ac_x_includes=$ac_dir + break + fi + done +fi +rm -f conftest* +fi # $ac_x_includes = NO + +if test "$ac_x_libraries" = NO; then + # Check for the libraries. + + test -z "$x_direct_test_library" && x_direct_test_library=Xt + test -z "$x_direct_test_function" && x_direct_test_function=XtMalloc + + # See if we find them without any special options. + # Don't add to $LIBS permanently. + ac_save_LIBS="$LIBS" + LIBS="-l$x_direct_test_library $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + LIBS="$ac_save_LIBS" +# We can link X programs with no special library path. +ac_x_libraries= +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + LIBS="$ac_save_LIBS" +# First see if replacing the include by lib works. +# Check X11 before X11Rn because it is often a symlink to the current release. +for ac_dir in `echo "$ac_x_includes" | sed s/include/lib/` \ + /usr/X11/lib \ + /usr/X11R6/lib \ + /usr/X11R5/lib \ + /usr/X11R4/lib \ + \ + /usr/lib/X11 \ + /usr/lib/X11R6 \ + /usr/lib/X11R5 \ + /usr/lib/X11R4 \ + \ + /usr/local/X11/lib \ + /usr/local/X11R6/lib \ + /usr/local/X11R5/lib \ + /usr/local/X11R4/lib \ + \ + /usr/local/lib/X11 \ + /usr/local/lib/X11R6 \ + /usr/local/lib/X11R5 \ + /usr/local/lib/X11R4 \ + \ + /usr/X386/lib \ + /usr/x386/lib \ + /usr/XFree86/lib/X11 \ + \ + /usr/lib \ + /usr/local/lib \ + /usr/unsupported/lib \ + /usr/athena/lib \ + /usr/local/x11r5/lib \ + /usr/lpp/Xamples/lib \ + /lib/usr/lib/X11 \ + \ + /usr/openwin/lib \ + /usr/openwin/share/lib \ + ; \ +do + for ac_extension in a so sl; do + if test -r $ac_dir/lib${x_direct_test_library}.$ac_extension; then + ac_x_libraries=$ac_dir + break 2 + fi + done +done +fi +rm -f conftest* +fi # $ac_x_libraries = NO + +if test "$ac_x_includes" = NO || test "$ac_x_libraries" = NO; then + # Didn't find X anywhere. Cache the known absence of X. + ac_cv_have_x="have_x=no" +else + # Record where we found X for the cache. + ac_cv_have_x="have_x=yes \ + ac_x_includes=$ac_x_includes ac_x_libraries=$ac_x_libraries" +fi +fi + fi + eval "$ac_cv_have_x" +fi # $with_x != no + +if test "$have_x" != yes; then + echo "$ac_t""$have_x" 1>&6 + no_x=yes +else + # If each of the values was on the command line, it overrides each guess. + test "x$x_includes" = xNONE && x_includes=$ac_x_includes + test "x$x_libraries" = xNONE && x_libraries=$ac_x_libraries + # Update the cache value to reflect the command line values. + ac_cv_have_x="have_x=yes \ + ac_x_includes=$x_includes ac_x_libraries=$x_libraries" + echo "$ac_t""libraries $x_libraries, headers $x_includes" 1>&6 +fi + +if test "$no_x" = yes; then + # Not all programs may use this symbol, but it does not hurt to define it. + cat >> confdefs.h <<\EOF +#define X_DISPLAY_MISSING 1 +EOF + + X_CFLAGS= X_PRE_LIBS= X_LIBS= X_EXTRA_LIBS= +else + if test -n "$x_includes"; then + X_CFLAGS="$X_CFLAGS -I$x_includes" + fi + + # It would also be nice to do this for all -L options, not just this one. + if test -n "$x_libraries"; then + X_LIBS="$X_LIBS -L$x_libraries" + # For Solaris; some versions of Sun CC require a space after -R and + # others require no space. Words are not sufficient . . . . + case "`(uname -sr) 2>/dev/null`" in + "SunOS 5"*) + echo $ac_n "checking whether -R must be followed by a space""... $ac_c" 1>&6 +echo "configure:1315: checking whether -R must be followed by a space" >&5 + ac_xsave_LIBS="$LIBS"; LIBS="$LIBS -R$x_libraries" + cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + ac_R_nospace=yes +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + ac_R_nospace=no +fi +rm -f conftest* + if test $ac_R_nospace = yes; then + echo "$ac_t""no" 1>&6 + X_LIBS="$X_LIBS -R$x_libraries" + else + LIBS="$ac_xsave_LIBS -R $x_libraries" + cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + ac_R_space=yes +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + ac_R_space=no +fi +rm -f conftest* + if test $ac_R_space = yes; then + echo "$ac_t""yes" 1>&6 + X_LIBS="$X_LIBS -R $x_libraries" + else + echo "$ac_t""neither works" 1>&6 + fi + fi + LIBS="$ac_xsave_LIBS" + esac + fi + + # Check for system-dependent libraries X programs must link with. + # Do this before checking for the system-independent R6 libraries + # (-lICE), since we may need -lsocket or whatever for X linking. + + if test "$ISC" = yes; then + X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl_s -linet" + else + # Martyn.Johnson@cl.cam.ac.uk says this is needed for Ultrix, if the X + # libraries were built with DECnet support. And karl@cs.umb.edu says + # the Alpha needs dnet_stub (dnet does not exist). + echo $ac_n "checking for dnet_ntoa in -ldnet""... $ac_c" 1>&6 +echo "configure:1380: checking for dnet_ntoa in -ldnet" >&5 +ac_lib_var=`echo dnet'_'dnet_ntoa | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-ldnet $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet" +else + echo "$ac_t""no" 1>&6 +fi + + if test $ac_cv_lib_dnet_dnet_ntoa = no; then + echo $ac_n "checking for dnet_ntoa in -ldnet_stub""... $ac_c" 1>&6 +echo "configure:1421: checking for dnet_ntoa in -ldnet_stub" >&5 +ac_lib_var=`echo dnet_stub'_'dnet_ntoa | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-ldnet_stub $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + X_EXTRA_LIBS="$X_EXTRA_LIBS -ldnet_stub" +else + echo "$ac_t""no" 1>&6 +fi + + fi + + # msh@cis.ufl.edu says -lnsl (and -lsocket) are needed for his 386/AT, + # to get the SysV transport functions. + # chad@anasazi.com says the Pyramis MIS-ES running DC/OSx (SVR4) + # needs -lnsl. + # The nsl library prevents programs from opening the X display + # on Irix 5.2, according to dickey@clark.net. + echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6 +echo "configure:1469: checking for gethostbyname" >&5 +if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +/* Override any gcc2 internal prototype to avoid an error. */ +/* We use char because int might match the return type of a gcc2 + builtin and then its argument prototype would still apply. */ +char gethostbyname(); + +int main() { + +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined (__stub_gethostbyname) || defined (__stub___gethostbyname) +choke me +#else +gethostbyname(); +#endif + +; return 0; } +EOF +if { (eval echo configure:1497: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_func_gethostbyname=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_func_gethostbyname=no" +fi +rm -f conftest* +fi + +if eval "test \"`echo '$ac_cv_func_'gethostbyname`\" = yes"; then + echo "$ac_t""yes" 1>&6 + : +else + echo "$ac_t""no" 1>&6 +fi + + if test $ac_cv_func_gethostbyname = no; then + echo $ac_n "checking for gethostbyname in -lnsl""... $ac_c" 1>&6 +echo "configure:1518: checking for gethostbyname in -lnsl" >&5 +ac_lib_var=`echo nsl'_'gethostbyname | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-lnsl $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + X_EXTRA_LIBS="$X_EXTRA_LIBS -lnsl" +else + echo "$ac_t""no" 1>&6 +fi + + fi + + # lieder@skyler.mavd.honeywell.com says without -lsocket, + # socket/setsockopt and other routines are undefined under SCO ODT + # 2.0. But -lsocket is broken on IRIX 5.2 (and is not necessary + # on later versions), says simon@lia.di.epfl.ch: it contains + # gethostby* variants that don't use the nameserver (or something). + # -lsocket must be given before -lnsl if both are needed. + # We assume that if connect needs -lnsl, so does gethostbyname. + echo $ac_n "checking for connect""... $ac_c" 1>&6 +echo "configure:1567: checking for connect" >&5 +if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +/* Override any gcc2 internal prototype to avoid an error. */ +/* We use char because int might match the return type of a gcc2 + builtin and then its argument prototype would still apply. */ +char connect(); + +int main() { + +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined (__stub_connect) || defined (__stub___connect) +choke me +#else +connect(); +#endif + +; return 0; } +EOF +if { (eval echo configure:1595: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_func_connect=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_func_connect=no" +fi +rm -f conftest* +fi + +if eval "test \"`echo '$ac_cv_func_'connect`\" = yes"; then + echo "$ac_t""yes" 1>&6 + : +else + echo "$ac_t""no" 1>&6 +fi + + if test $ac_cv_func_connect = no; then + echo $ac_n "checking for connect in -lsocket""... $ac_c" 1>&6 +echo "configure:1616: checking for connect in -lsocket" >&5 +ac_lib_var=`echo socket'_'connect | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-lsocket $X_EXTRA_LIBS $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + X_EXTRA_LIBS="-lsocket $X_EXTRA_LIBS" +else + echo "$ac_t""no" 1>&6 +fi + + fi + + # gomez@mi.uni-erlangen.de says -lposix is necessary on A/UX. + echo $ac_n "checking for remove""... $ac_c" 1>&6 +echo "configure:1659: checking for remove" >&5 +if eval "test \"`echo '$''{'ac_cv_func_remove'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +/* Override any gcc2 internal prototype to avoid an error. */ +/* We use char because int might match the return type of a gcc2 + builtin and then its argument prototype would still apply. */ +char remove(); + +int main() { + +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined (__stub_remove) || defined (__stub___remove) +choke me +#else +remove(); +#endif + +; return 0; } +EOF +if { (eval echo configure:1687: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_func_remove=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_func_remove=no" +fi +rm -f conftest* +fi + +if eval "test \"`echo '$ac_cv_func_'remove`\" = yes"; then + echo "$ac_t""yes" 1>&6 + : +else + echo "$ac_t""no" 1>&6 +fi + + if test $ac_cv_func_remove = no; then + echo $ac_n "checking for remove in -lposix""... $ac_c" 1>&6 +echo "configure:1708: checking for remove in -lposix" >&5 +ac_lib_var=`echo posix'_'remove | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-lposix $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + X_EXTRA_LIBS="$X_EXTRA_LIBS -lposix" +else + echo "$ac_t""no" 1>&6 +fi + + fi + + # BSDI BSD/OS 2.1 needs -lipc for XOpenDisplay. + echo $ac_n "checking for shmat""... $ac_c" 1>&6 +echo "configure:1751: checking for shmat" >&5 +if eval "test \"`echo '$''{'ac_cv_func_shmat'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +/* Override any gcc2 internal prototype to avoid an error. */ +/* We use char because int might match the return type of a gcc2 + builtin and then its argument prototype would still apply. */ +char shmat(); + +int main() { + +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined (__stub_shmat) || defined (__stub___shmat) +choke me +#else +shmat(); +#endif + +; return 0; } +EOF +if { (eval echo configure:1779: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_func_shmat=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_func_shmat=no" +fi +rm -f conftest* +fi + +if eval "test \"`echo '$ac_cv_func_'shmat`\" = yes"; then + echo "$ac_t""yes" 1>&6 + : +else + echo "$ac_t""no" 1>&6 +fi + + if test $ac_cv_func_shmat = no; then + echo $ac_n "checking for shmat in -lipc""... $ac_c" 1>&6 +echo "configure:1800: checking for shmat in -lipc" >&5 +ac_lib_var=`echo ipc'_'shmat | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-lipc $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + X_EXTRA_LIBS="$X_EXTRA_LIBS -lipc" +else + echo "$ac_t""no" 1>&6 +fi + + fi + fi + + # Check for libraries that X11R6 Xt/Xaw programs need. + ac_save_LDFLAGS="$LDFLAGS" + test -n "$x_libraries" && LDFLAGS="$LDFLAGS -L$x_libraries" + # SM needs ICE to (dynamically) link under SunOS 4.x (so we have to + # check for ICE first), but we must link in the order -lSM -lICE or + # we get undefined symbols. So assume we have SM if we have ICE. + # These have to be linked with before -lX11, unlike the other + # libraries we check for below, so use a different variable. + # --interran@uluru.Stanford.EDU, kb@cs.umb.edu. + echo $ac_n "checking for IceConnectionNumber in -lICE""... $ac_c" 1>&6 +echo "configure:1852: checking for IceConnectionNumber in -lICE" >&5 +ac_lib_var=`echo ICE'_'IceConnectionNumber | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-lICE $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + X_PRE_LIBS="$X_PRE_LIBS -lSM -lICE" +else + echo "$ac_t""no" 1>&6 +fi + + LDFLAGS="$ac_save_LDFLAGS" + +fi + + +echo $ac_n "checking for pthread_create in -lpthread""... $ac_c" 1>&6 +echo "configure:1897: checking for pthread_create in -lpthread" >&5 +ac_lib_var=`echo pthread'_'pthread_create | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + ac_save_LIBS="$LIBS" +LIBS="-lpthread $LIBS" +cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_lib_$ac_lib_var=no" +fi +rm -f conftest* +LIBS="$ac_save_LIBS" + +fi +if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then + echo "$ac_t""yes" 1>&6 + pthread_lib="-lpthread"; cat >> confdefs.h <<\EOF +#define HAVE_LIBPTHREAD 1 +EOF + +else + echo "$ac_t""no" 1>&6 +: +fi + + + +if test -n "$pthread_lib"; then + case $host in + i?86-*-linux*) + cat >> confdefs.h <<\EOF +#define _REENTRANT 1 +EOF + + ;; + esac +fi + +#if test -n "$x_libraries"; then +# XOGG="yes" +# +# dnl If we find libgtk installed, great; otherwise assume we have +# dnl to build it ourselves. +# +# AC_CHECK_LIB(gtk, gtk_main, :, LIBGTKDIR="libgtk", $X_LIBS -lglib -lgdk -lX11 -lXext -lm) +# +# dnl libpthread is required for xogg. +# +# if test -z "$pthread_lib"; then XOGG=""; fi +# +# dnl If we don't have libgtk installed, and we don't have a libgtk +# dnl subdirectory to build the library ourself, we can't build xogg. +# +# if test -n "$LIBGTKDIR" -a ! -d "$LIBGTKDIR"; then +# XOGG="" +# LIBGTKDIR="" +# fi +#fi + + +dummy="__noconf" + +#if test -d "$LIBGTKDIR"; then +# enable_shared="no"; export enable_shared +# dummy="libgtk" +# AC_CONFIG_SUBDIRS("$dummy") +# X_LIBS="-L${srcdir}/libgtk/gtk/.libs -L${srcdir}/libgtk/gdk/.libs -L${srcdir}/libgtk/glib/.libs $X_LIBS" +#fi + +TYPESIZES="" + +echo $ac_n "checking size of short""... $ac_c" 1>&6 +echo "configure:1987: checking size of short" >&5 +if eval "test \"`echo '$''{'ac_cv_sizeof_short'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test "$cross_compiling" = yes; then + { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; } +else + cat > conftest.$ac_ext < +main() +{ + FILE *f=fopen("conftestval", "w"); + if (!f) exit(1); + fprintf(f, "%d\n", sizeof(short)); + exit(0); +} +EOF +if { (eval echo configure:2006: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null +then + ac_cv_sizeof_short=`cat conftestval` +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -fr conftest* + ac_cv_sizeof_short=0 +fi +rm -fr conftest* +fi + +fi +echo "$ac_t""$ac_cv_sizeof_short" 1>&6 +cat >> confdefs.h <&6 +echo "configure:2026: checking size of int" >&5 +if eval "test \"`echo '$''{'ac_cv_sizeof_int'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test "$cross_compiling" = yes; then + { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; } +else + cat > conftest.$ac_ext < +main() +{ + FILE *f=fopen("conftestval", "w"); + if (!f) exit(1); + fprintf(f, "%d\n", sizeof(int)); + exit(0); +} +EOF +if { (eval echo configure:2045: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null +then + ac_cv_sizeof_int=`cat conftestval` +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -fr conftest* + ac_cv_sizeof_int=0 +fi +rm -fr conftest* +fi + +fi +echo "$ac_t""$ac_cv_sizeof_int" 1>&6 +cat >> confdefs.h <&6 +echo "configure:2065: checking size of long" >&5 +if eval "test \"`echo '$''{'ac_cv_sizeof_long'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test "$cross_compiling" = yes; then + { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; } +else + cat > conftest.$ac_ext < +main() +{ + FILE *f=fopen("conftestval", "w"); + if (!f) exit(1); + fprintf(f, "%d\n", sizeof(long)); + exit(0); +} +EOF +if { (eval echo configure:2084: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null +then + ac_cv_sizeof_long=`cat conftestval` +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -fr conftest* + ac_cv_sizeof_long=0 +fi +rm -fr conftest* +fi + +fi +echo "$ac_t""$ac_cv_sizeof_long" 1>&6 +cat >> confdefs.h <&6 +echo "configure:2104: checking size of long long" >&5 +if eval "test \"`echo '$''{'ac_cv_sizeof_long_long'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test "$cross_compiling" = yes; then + { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; } +else + cat > conftest.$ac_ext < +main() +{ + FILE *f=fopen("conftestval", "w"); + if (!f) exit(1); + fprintf(f, "%d\n", sizeof(long long)); + exit(0); +} +EOF +if { (eval echo configure:2123: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null +then + ac_cv_sizeof_long_long=`cat conftestval` +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -fr conftest* + ac_cv_sizeof_long_long=0 +fi +rm -fr conftest* +fi + +fi +echo "$ac_t""$ac_cv_sizeof_long_long" 1>&6 +cat >> confdefs.h <&2; exit 1; } +fi +if test -z "$SIZE32"; then + { echo "configure: error: No 32 bit tupe found on this platform!" 1>&2; exit 1; } +fi +if test -z "$SIZE64"; then + echo "configure: warning: No 64 bit tupe found on this platform!" 1>&2 +fi + +echo $ac_n "checking for sys/wait.h that is POSIX.1 compatible""... $ac_c" 1>&6 +echo "configure:2180: checking for sys/wait.h that is POSIX.1 compatible" >&5 +if eval "test \"`echo '$''{'ac_cv_header_sys_wait_h'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +#include +#ifndef WEXITSTATUS +#define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8) +#endif +#ifndef WIFEXITED +#define WIFEXITED(stat_val) (((stat_val) & 255) == 0) +#endif +int main() { +int s; +wait (&s); +s = WIFEXITED (s) ? WEXITSTATUS (s) : 1; +; return 0; } +EOF +if { (eval echo configure:2201: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then + rm -rf conftest* + ac_cv_header_sys_wait_h=yes +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + ac_cv_header_sys_wait_h=no +fi +rm -f conftest* +fi + +echo "$ac_t""$ac_cv_header_sys_wait_h" 1>&6 +if test $ac_cv_header_sys_wait_h = yes; then + cat >> confdefs.h <<\EOF +#define HAVE_SYS_WAIT_H 1 +EOF + +fi + +for ac_hdr in fcntl.h limits.h sys/ioctl.h sys/time.h unistd.h +do +ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'` +echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6 +echo "configure:2225: checking for $ac_hdr" >&5 +if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +EOF +ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out" +{ (eval echo configure:2235: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; } +ac_err=`grep -v '^ *+' conftest.out` +if test -z "$ac_err"; then + rm -rf conftest* + eval "ac_cv_header_$ac_safe=yes" +else + echo "$ac_err" >&5 + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_header_$ac_safe=no" +fi +rm -f conftest* +fi +if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then + echo "$ac_t""yes" 1>&6 + ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'` + cat >> confdefs.h <&6 +fi +done + + +echo $ac_n "checking for working const""... $ac_c" 1>&6 +echo "configure:2263: checking for working const" >&5 +if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext <j = 5; +} +{ /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */ + const int foo = 10; +} + +; return 0; } +EOF +if { (eval echo configure:2317: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then + rm -rf conftest* + ac_cv_c_const=yes +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + ac_cv_c_const=no +fi +rm -f conftest* +fi + +echo "$ac_t""$ac_cv_c_const" 1>&6 +if test $ac_cv_c_const = no; then + cat >> confdefs.h <<\EOF +#define const +EOF + +fi + +echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6 +echo "configure:2338: checking whether time.h and sys/time.h may both be included" >&5 +if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +#include +#include +int main() { +struct tm *tp; +; return 0; } +EOF +if { (eval echo configure:2352: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then + rm -rf conftest* + ac_cv_header_time=yes +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + ac_cv_header_time=no +fi +rm -f conftest* +fi + +echo "$ac_t""$ac_cv_header_time" 1>&6 +if test $ac_cv_header_time = yes; then + cat >> confdefs.h <<\EOF +#define TIME_WITH_SYS_TIME 1 +EOF + +fi + +echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6 +echo "configure:2373: checking whether struct tm is in sys/time.h or time.h" >&5 +if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +#include +int main() { +struct tm *tp; tp->tm_sec; +; return 0; } +EOF +if { (eval echo configure:2386: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then + rm -rf conftest* + ac_cv_struct_tm=time.h +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + ac_cv_struct_tm=sys/time.h +fi +rm -f conftest* +fi + +echo "$ac_t""$ac_cv_struct_tm" 1>&6 +if test $ac_cv_struct_tm = sys/time.h; then + cat >> confdefs.h <<\EOF +#define TM_IN_SYS_TIME 1 +EOF + +fi + + +echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6 +echo "configure:2408: checking whether ${MAKE-make} sets \${MAKE}" >&5 +set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'` +if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftestmake <<\EOF +all: + @echo 'ac_maketemp="${MAKE}"' +EOF +# GNU make sometimes prints "make[1]: Entering...", which would confuse us. +eval `${MAKE-make} -f conftestmake 2>/dev/null | grep temp=` +if test -n "$ac_maketemp"; then + eval ac_cv_prog_make_${ac_make}_set=yes +else + eval ac_cv_prog_make_${ac_make}_set=no +fi +rm -f conftestmake +fi +if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then + echo "$ac_t""yes" 1>&6 + SET_MAKE= +else + echo "$ac_t""no" 1>&6 + SET_MAKE="MAKE=${MAKE-make}" +fi + +echo $ac_n "checking for 8-bit clean memcmp""... $ac_c" 1>&6 +echo "configure:2435: checking for 8-bit clean memcmp" >&5 +if eval "test \"`echo '$''{'ac_cv_func_memcmp_clean'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + if test "$cross_compiling" = yes; then + ac_cv_func_memcmp_clean=no +else + cat > conftest.$ac_ext <&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null +then + ac_cv_func_memcmp_clean=yes +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -fr conftest* + ac_cv_func_memcmp_clean=no +fi +rm -fr conftest* +fi + +fi + +echo "$ac_t""$ac_cv_func_memcmp_clean" 1>&6 +test $ac_cv_func_memcmp_clean = no && LIBOBJS="$LIBOBJS memcmp.o" + +echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6 +echo "configure:2471: checking return type of signal handlers" >&5 +if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +#include +#ifdef signal +#undef signal +#endif +#ifdef __cplusplus +extern "C" void (*signal (int, void (*)(int)))(int); +#else +void (*signal ()) (); +#endif + +int main() { +int i; +; return 0; } +EOF +if { (eval echo configure:2493: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then + rm -rf conftest* + ac_cv_type_signal=void +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + ac_cv_type_signal=int +fi +rm -f conftest* +fi + +echo "$ac_t""$ac_cv_type_signal" 1>&6 +cat >> confdefs.h <&6 +echo "configure:2514: checking for $ac_func" >&5 +if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext < +/* Override any gcc2 internal prototype to avoid an error. */ +/* We use char because int might match the return type of a gcc2 + builtin and then its argument prototype would still apply. */ +char $ac_func(); + +int main() { + +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined (__stub_$ac_func) || defined (__stub___$ac_func) +choke me +#else +$ac_func(); +#endif + +; return 0; } +EOF +if { (eval echo configure:2542: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then + rm -rf conftest* + eval "ac_cv_func_$ac_func=yes" +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + eval "ac_cv_func_$ac_func=no" +fi +rm -f conftest* +fi + +if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then + echo "$ac_t""yes" 1>&6 + ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` + cat >> confdefs.h <&6 +fi +done + + + + + + + + +#AC_SUBST(XOGG) +#AC_SUBST(LIBGTKDIR) + + +trap '' 1 2 15 +cat > confcache <<\EOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs. It is not useful on other systems. +# If it contains results you don't want to keep, you may remove or edit it. +# +# By default, configure uses ./config.cache as the cache file, +# creating it if it does not exist already. You can give configure +# the --cache-file=FILE option to use a different cache file; that is +# what configure does when it calls configure scripts in +# subdirectories, so they share the cache. +# Giving --cache-file=/dev/null disables caching, for debugging configure. +# config.status only pays attention to the cache file if you give it the +# --recheck option to rerun configure. +# +EOF +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, don't put newlines in cache variables' values. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +(set) 2>&1 | + case `(ac_space=' '; set) 2>&1` in + *ac_space=\ *) + # `set' does not quote correctly, so add quotes (double-quote substitution + # turns \\\\ into \\, and sed turns \\ into \). + sed -n \ + -e "s/'/'\\\\''/g" \ + -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p" + ;; + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p' + ;; + esac >> confcache +if cmp -s $cache_file confcache; then + : +else + if test -w $cache_file; then + echo "updating cache $cache_file" + cat confcache > $cache_file + else + echo "not updating unwritable cache $cache_file" + fi +fi +rm -f confcache + +trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15 + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +# Any assignment to VPATH causes Sun make to only execute +# the first set of double-colon rules, so remove it if not needed. +# If there is a colon in the path, we need to keep it. +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=[^:]*$/d' +fi + +trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15 + +# Transform confdefs.h into DEFS. +# Protect against shell expansion while executing Makefile rules. +# Protect against Makefile macro expansion. +cat > conftest.defs <<\EOF +s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%-D\1=\2%g +s%[ `~#$^&*(){}\\|;'"<>?]%\\&%g +s%\[%\\&%g +s%\]%\\&%g +s%\$%$$%g +EOF +DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' '` +rm -f conftest.defs + + +# Without the "./", some shells look in PATH for config.status. +: ${CONFIG_STATUS=./config.status} + +echo creating $CONFIG_STATUS +rm -f $CONFIG_STATUS +cat > $CONFIG_STATUS </dev/null | sed 1q`: +# +# $0 $ac_configure_args +# +# Compiler output produced by configure, useful for debugging +# configure, is in ./config.log if it exists. + +ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]" +for ac_option +do + case "\$ac_option" in + -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) + echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion" + exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;; + -version | --version | --versio | --versi | --vers | --ver | --ve | --v) + echo "$CONFIG_STATUS generated by autoconf version 2.12" + exit 0 ;; + -help | --help | --hel | --he | --h) + echo "\$ac_cs_usage"; exit 0 ;; + *) echo "\$ac_cs_usage"; exit 1 ;; + esac +done + +ac_given_srcdir=$srcdir + +trap 'rm -fr `echo "Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15 +EOF +cat >> $CONFIG_STATUS < conftest.subs <<\\CEOF +$ac_vpsub +$extrasub +s%@CFLAGS@%$CFLAGS%g +s%@CPPFLAGS@%$CPPFLAGS%g +s%@CXXFLAGS@%$CXXFLAGS%g +s%@DEFS@%$DEFS%g +s%@LDFLAGS@%$LDFLAGS%g +s%@LIBS@%$LIBS%g +s%@exec_prefix@%$exec_prefix%g +s%@prefix@%$prefix%g +s%@program_transform_name@%$program_transform_name%g +s%@bindir@%$bindir%g +s%@sbindir@%$sbindir%g +s%@libexecdir@%$libexecdir%g +s%@datadir@%$datadir%g +s%@sysconfdir@%$sysconfdir%g +s%@sharedstatedir@%$sharedstatedir%g +s%@localstatedir@%$localstatedir%g +s%@libdir@%$libdir%g +s%@includedir@%$includedir%g +s%@oldincludedir@%$oldincludedir%g +s%@infodir@%$infodir%g +s%@mandir@%$mandir%g +s%@host@%$host%g +s%@host_alias@%$host_alias%g +s%@host_cpu@%$host_cpu%g +s%@host_vendor@%$host_vendor%g +s%@host_os@%$host_os%g +s%@CC@%$CC%g +s%@RANLIB@%$RANLIB%g +s%@AR@%$AR%g +s%@CPP@%$CPP%g +s%@X_CFLAGS@%$X_CFLAGS%g +s%@X_PRE_LIBS@%$X_PRE_LIBS%g +s%@X_LIBS@%$X_LIBS%g +s%@X_EXTRA_LIBS@%$X_EXTRA_LIBS%g +s%@SET_MAKE@%$SET_MAKE%g +s%@LIBOBJS@%$LIBOBJS%g +s%@TYPESIZES@%$TYPESIZES%g +s%@OPT@%$OPT%g +s%@DEBUG@%$DEBUG%g +s%@PROFILE@%$PROFILE%g +s%@pthread_lib@%$pthread_lib%g + +CEOF +EOF + +cat >> $CONFIG_STATUS <<\EOF + +# Split the substitutions into bite-sized pieces for seds with +# small command number limits, like on Digital OSF/1 and HP-UX. +ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script. +ac_file=1 # Number of current file. +ac_beg=1 # First line for current file. +ac_end=$ac_max_sed_cmds # Line after last line for current file. +ac_more_lines=: +ac_sed_cmds="" +while $ac_more_lines; do + if test $ac_beg -gt 1; then + sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file + else + sed "${ac_end}q" conftest.subs > conftest.s$ac_file + fi + if test ! -s conftest.s$ac_file; then + ac_more_lines=false + rm -f conftest.s$ac_file + else + if test -z "$ac_sed_cmds"; then + ac_sed_cmds="sed -f conftest.s$ac_file" + else + ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file" + fi + ac_file=`expr $ac_file + 1` + ac_beg=$ac_end + ac_end=`expr $ac_end + $ac_max_sed_cmds` + fi +done +if test -z "$ac_sed_cmds"; then + ac_sed_cmds=cat +fi +EOF + +cat >> $CONFIG_STATUS <> $CONFIG_STATUS <<\EOF +for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then + # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in". + case "$ac_file" in + *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'` + ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;; + *) ac_file_in="${ac_file}.in" ;; + esac + + # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories. + + # Remove last slash and all that follows it. Not all systems have dirname. + ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'` + if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then + # The file is in a subdirectory. + test ! -d "$ac_dir" && mkdir "$ac_dir" + ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`" + # A "../" for each directory in $ac_dir_suffix. + ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'` + else + ac_dir_suffix= ac_dots= + fi + + case "$ac_given_srcdir" in + .) srcdir=. + if test -z "$ac_dots"; then top_srcdir=. + else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;; + /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;; + *) # Relative path. + srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix" + top_srcdir="$ac_dots$ac_given_srcdir" ;; + esac + + + echo creating "$ac_file" + rm -f "$ac_file" + configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure." + case "$ac_file" in + *Makefile*) ac_comsub="1i\\ +# $configure_input" ;; + *) ac_comsub= ;; + esac + + ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"` + sed -e "$ac_comsub +s%@configure_input@%$configure_input%g +s%@srcdir@%$srcdir%g +s%@top_srcdir@%$top_srcdir%g +" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file +fi; done +rm -f conftest.s* + +EOF +cat >> $CONFIG_STATUS <> $CONFIG_STATUS <<\EOF + +exit 0 +EOF +chmod +x $CONFIG_STATUS +rm -fr confdefs* $ac_clean_files +test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1 + diff --git a/configure.in b/configure.in new file mode 100644 index 0000000..f498cb7 --- /dev/null +++ b/configure.in @@ -0,0 +1,184 @@ +# $Id: configure.in,v 1.1 1999/07/13 06:50:34 mwhitson Exp $ +# $Date: 1999/07/13 06:50:34 $ + +AC_INIT(mdct.c) +#AC_CONFIG_HEADER(config.h) + +cp configure.guess config.guess +cp configure.sub config.sub + +AC_CANONICAL_HOST + +dnl If we're on IRIX, we wanna use cc even if gcc is there (unless the user +dnl has overriden us)... +case $host + in *-*-irix*) + if test -z "$CC"; then + CC=cc + fi + AC_CHECK_LIB(audio, ALwritesamps) + ;; +esac + +if test -z "$CC"; then + AC_PROG_CC +fi +AC_PROG_RANLIB +AC_CHECK_PROG(AR,ar,ar) + +dnl Set some target options +if test -z "$GCC"; then + case $host in + *-*-irix*) + DEBUG="-g" + OPT="-O2 -w" + PROFILE="-p -g3 -O2" ;; + sparc-sun-solaris*) + DEBUG="-v -g" + OPT="-xO4 -fast -w -fsingle -fsimple -native -xcg92" + PROFILE="-v -xpg -g -xO4 -fast -fsingle -native -fsimple -xcg92 -Dsuncc" ;; + *) + DEBUG="-g" + OPT="-O" + PROFILE="-g -p" ;; + esac +else + case $host in + i?86-*-linux*) + DEBUG="-g -Wall -fsigned-char" + OPT="-O20 -ffast-math -fsigned-char" + PROFILE="-pg -g -O20 -fsigned-char";; + sparc-sun-*) + DEBUG="-g -Wall -fsigned-char -mv8" + OPT="-O20 -ffast-math -fsigned-char -mv8" + PROFILE="-pg -g -O20 -fsigned-char -mv8" ;; + *) + DEBUG="-g -Wall -fsigned-char" + OPT="-O20 -fsigned-char" + PROFILE="-O20 -g -pg -fsigned-char" ;; + esac +fi + +AC_HEADER_STDC + +CFLAGS="" + +AC_PATH_X +AC_PATH_XTRA + +AC_CHECK_LIB(pthread, pthread_create, + pthread_lib="-lpthread"; AC_DEFINE(HAVE_LIBPTHREAD), :) + +dnl Linuxthreads require you to define _REENTRANT in all threaded +dnl code. Bogus, bogus... + +if test -n "$pthread_lib"; then + case $host in + i?86-*-linux*) + AC_DEFINE(_REENTRANT) + ;; + esac +fi + +#if test -n "$x_libraries"; then +# XOGG="yes" +# +# dnl If we find libgtk installed, great; otherwise assume we have +# dnl to build it ourselves. +# +# AC_CHECK_LIB(gtk, gtk_main, :, LIBGTKDIR="libgtk", $X_LIBS -lglib -lgdk -lX11 -lXext -lm) +# +# dnl libpthread is required for xogg. +# +# if test -z "$pthread_lib"; then XOGG=""; fi +# +# dnl If we don't have libgtk installed, and we don't have a libgtk +# dnl subdirectory to build the library ourself, we can't build xogg. +# +# if test -n "$LIBGTKDIR" -a ! -d "$LIBGTKDIR"; then +# XOGG="" +# LIBGTKDIR="" +# fi +#fi + +dnl This seems to be the only way to make autoconf only *sometimes* configure +dnl a subdirectory with AC_CONFIG_SUBDIRS. "__noconf" is assumed to not +dnl exist as a directory, so configure won't try to recursively enter it, unless +dnl the shell variable $dummy is reset to an existing directory inside the +dnl if clause. + +dummy="__noconf" + +#if test -d "$LIBGTKDIR"; then +# enable_shared="no"; export enable_shared +# dummy="libgtk" +# AC_CONFIG_SUBDIRS("$dummy") +# X_LIBS="-L${srcdir}/libgtk/gtk/.libs -L${srcdir}/libgtk/gdk/.libs -L${srcdir}/libgtk/glib/.libs $X_LIBS" +#fi + +TYPESIZES="" + +AC_CHECK_SIZEOF(short) +AC_CHECK_SIZEOF(int) +AC_CHECK_SIZEOF(long) +AC_CHECK_SIZEOF(long long) + +case 2 in + $ac_cv_sizeof_short) TYPESIZES="$TYPESIZES -Dsize16='short'" + SIZE16=TRUE;; + $ac_cv_sizeof_int) TYPESIZES="$TYPESIZES -Dsize16='int'" + SIZE16=TRUE;; +esac + +case 4 in + $ac_cv_sizeof_short) TYPESIZES="$TYPESIZES -Dsize32='short'" + SIZE32=TRUE;; + $ac_cv_sizeof_int) TYPESIZES="$TYPESIZES -Dsize32='int'" + SIZE32=TRUE;; + $ac_cv_sizeof_long) TYPESIZES="$TYPESIZES -Dsize32='long'" + SIZE32=TRUE;; +esac + +case 8 in + $ac_cv_sizeof_int) TYPESIZES="$TYPESIZES -Dsize64='int'" + SIZE64=TRUE;; + $ac_cv_sizeof_long) TYPESIZES="$TYPESIZES -Dsize64='long'" + SIZE64=TRUE;; + $ac_cv_sizeof_long_long) TYPESIZES="$TYPESIZES -Dsize64='long long'" + SIZE64=TRUE;; +esac + + +if test -z "$SIZE16"; then + AC_MSG_ERROR(No 16 bit tupe found on this platform!) +fi +if test -z "$SIZE32"; then + AC_MSG_ERROR(No 32 bit tupe found on this platform!) +fi +if test -z "$SIZE64"; then + AC_MSG_WARN(No 64 bit tupe found on this platform!) +fi + +AC_HEADER_SYS_WAIT +AC_CHECK_HEADERS(fcntl.h limits.h sys/ioctl.h sys/time.h unistd.h) + +AC_C_CONST +AC_HEADER_TIME +AC_STRUCT_TM + +AC_PROG_MAKE_SET +AC_FUNC_MEMCMP +AC_TYPE_SIGNAL +AC_CHECK_FUNCS(gettimeofday select strcspn strerror strspn sigaction) + +AC_SUBST(TYPESIZES) +AC_SUBST(OPT) +AC_SUBST(DEBUG) +AC_SUBST(PROFILE) +AC_SUBST(CC) +AC_SUBST(RANLIB) +#AC_SUBST(XOGG) +#AC_SUBST(LIBGTKDIR) +AC_SUBST(pthread_lib) + +AC_OUTPUT(Makefile) diff --git a/configure.sub b/configure.sub new file mode 100755 index 0000000..e67a800 --- /dev/null +++ b/configure.sub @@ -0,0 +1,867 @@ +#! /bin/sh +# Configuration validation subroutine script, version 1.1. +# Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. +# This file is (in principle) common to ALL GNU software. +# The presence of a machine in this file suggests that SOME GNU software +# can handle that machine. It does not imply ALL GNU software can. +# +# This file 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. + +# Configuration subroutine to validate and canonicalize a configuration type. +# Supply the specified configuration type as an argument. +# If it is invalid, we print an error message on stderr and exit with code 1. +# Otherwise, we print the canonical config type on stdout and succeed. + +# This file is supposed to be the same for all GNU packages +# and recognize all the CPU types, system types and aliases +# that are meaningful with *any* GNU software. +# Each package is responsible for reporting which valid configurations +# it does not support. The user should be able to distinguish +# a failure to support a valid configuration from a meaningless +# configuration. + +# The goal of this file is to map all the various variations of a given +# machine specification into a single specification in the form: +# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM +# It is wrong to echo any other type of specification. + +if [ x$1 = x ] +then + echo Configuration name missing. 1>&2 + echo "Usage: $0 CPU-MFR-OPSYS" 1>&2 + echo "or $0 ALIAS" 1>&2 + echo where ALIAS is a recognized configuration type. 1>&2 + exit 1 +fi + +# First pass through any local machine types. +case $1 in + *local*) + echo $1 + exit 0 + ;; + *) + ;; +esac + +# Separate what the user gave into CPU-COMPANY and OS (if any). +basic_machine=`echo $1 | sed 's/-[^-]*$//'` +if [ $basic_machine != $1 ] +then os=`echo $1 | sed 's/.*-/-/'` +else os=; fi + +### Let's recognize common machines as not being operating systems so +### that things like config.sub decstation-3100 work. We also +### recognize some manufacturers as not being operating systems, so we +### can provide default operating systems below. +case $os in + -sun*os*) + # Prevent following clause from handling this invalid input. + ;; + -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ + -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ + -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ + -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ + -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ + -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp ) + os= + basic_machine=$1 + ;; + -hiux*) + os=-hiuxwe2 + ;; + -sco4) + os=-sco3.2v4 + basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'` + ;; + -sco3.2.[4-9]*) + os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` + basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'` + ;; + -sco3.2v[4-9]*) + # Don't forget version if it is 3.2v4 or newer. + basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'` + ;; + -sco*) + os=-sco3.2v2 + basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'` + ;; + -isc) + os=-isc2.2 + basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'` + ;; + -clix*) + basic_machine=clipper-intergraph + ;; + -isc*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-unknown/'` + ;; + -lynx*) + os=-lynxos + ;; + -ptx*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` + ;; + -windowsnt*) + os=`echo $os | sed -e 's/windowsnt/winnt/'` + ;; +esac + +# Decode aliases for certain CPU-COMPANY combinations. +case $basic_machine in + # Recognize the basic CPU types without company name. + # Some are omitted here because they have special meanings below. + tahoe | i[345]86 | i860 | m68k | m68000 | m88k | ns32k | arm \ + | arme[lb] | pyramid \ + | tron | a29k | 580 | i960 | h8300 | hppa1.0 | hppa1.1 \ + | alpha | we32k | ns16k | clipper | sparclite | i370 | sh \ + | powerpc | powerpcle | sparc64 | 1750a | dsp16xx | mips64 | mipsel \ + | pdp11 | mips64el | mips64orion | mips64orionel \ + | sparc) + basic_machine=$basic_machine-unknown + ;; + # Object if more than one company name word. + *-*-*) + echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 + exit 1 + ;; + # Recognize the basic CPU types with company name. + vax-* | tahoe-* | i[345]86-* | i860-* | m68k-* | m68000-* | m88k-* \ + | sparc-* | ns32k-* | fx80-* | arm-* | c[123]* \ + | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* | power-* \ + | none-* | 580-* | cray2-* | h8300-* | i960-* | xmp-* | ymp-* \ + | hppa1.0-* | hppa1.1-* | alpha-* | we32k-* | cydra-* | ns16k-* \ + | pn-* | np1-* | xps100-* | clipper-* | orion-* | sparclite-* \ + | pdp11-* | sh-* | powerpc-* | powerpcle-* | sparc64-* | mips64-* | mipsel-* \ + | mips64el-* | mips64orion-* | mips64orionel-*) + ;; + # Recognize the various machine names and aliases which stand + # for a CPU type and a company and sometimes even an OS. + 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) + basic_machine=m68000-att + ;; + 3b*) + basic_machine=we32k-att + ;; + alliant | fx80) + basic_machine=fx80-alliant + ;; + altos | altos3068) + basic_machine=m68k-altos + ;; + am29k) + basic_machine=a29k-none + os=-bsd + ;; + amdahl) + basic_machine=580-amdahl + os=-sysv + ;; + amiga | amiga-*) + basic_machine=m68k-cbm + ;; + amigados) + basic_machine=m68k-cbm + os=-amigados + ;; + amigaunix | amix) + basic_machine=m68k-cbm + os=-sysv4 + ;; + apollo68) + basic_machine=m68k-apollo + os=-sysv + ;; + balance) + basic_machine=ns32k-sequent + os=-dynix + ;; + convex-c1) + basic_machine=c1-convex + os=-bsd + ;; + convex-c2) + basic_machine=c2-convex + os=-bsd + ;; + convex-c32) + basic_machine=c32-convex + os=-bsd + ;; + convex-c34) + basic_machine=c34-convex + os=-bsd + ;; + convex-c38) + basic_machine=c38-convex + os=-bsd + ;; + cray | ymp) + basic_machine=ymp-cray + os=-unicos + ;; + cray2) + basic_machine=cray2-cray + os=-unicos + ;; + crds | unos) + basic_machine=m68k-crds + ;; + da30 | da30-*) + basic_machine=m68k-da30 + ;; + decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) + basic_machine=mips-dec + ;; + delta | 3300 | motorola-3300 | motorola-delta \ + | 3300-motorola | delta-motorola) + basic_machine=m68k-motorola + ;; + delta88) + basic_machine=m88k-motorola + os=-sysv3 + ;; + dpx20 | dpx20-*) + basic_machine=rs6000-bull + os=-bosx + ;; + dpx2* | dpx2*-bull) + basic_machine=m68k-bull + os=-sysv3 + ;; + ebmon29k) + basic_machine=a29k-amd + os=-ebmon + ;; + elxsi) + basic_machine=elxsi-elxsi + os=-bsd + ;; + encore | umax | mmax) + basic_machine=ns32k-encore + ;; + fx2800) + basic_machine=i860-alliant + ;; + genix) + basic_machine=ns32k-ns + ;; + gmicro) + basic_machine=tron-gmicro + os=-sysv + ;; + h3050r* | hiux*) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + h8300hms) + basic_machine=h8300-hitachi + os=-hms + ;; + harris) + basic_machine=m88k-harris + os=-sysv3 + ;; + hp300-*) + basic_machine=m68k-hp + ;; + hp300bsd) + basic_machine=m68k-hp + os=-bsd + ;; + hp300hpux) + basic_machine=m68k-hp + os=-hpux + ;; + hp9k2[0-9][0-9] | hp9k31[0-9]) + basic_machine=m68000-hp + ;; + hp9k3[2-9][0-9]) + basic_machine=m68k-hp + ;; + hp9k7[0-9][0-9] | hp7[0-9][0-9] | hp9k8[0-9]7 | hp8[0-9]7) + basic_machine=hppa1.1-hp + ;; + hp9k8[0-9][0-9] | hp8[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + i370-ibm* | ibm*) + basic_machine=i370-ibm + os=-mvs + ;; +# I'm not sure what "Sysv32" means. Should this be sysv3.2? + i[345]86v32) + basic_machine=`echo $1 | sed -e 's/86.*/86-unknown/'` + os=-sysv32 + ;; + i[345]86v4*) + basic_machine=`echo $1 | sed -e 's/86.*/86-unknown/'` + os=-sysv4 + ;; + i[345]86v) + basic_machine=`echo $1 | sed -e 's/86.*/86-unknown/'` + os=-sysv + ;; + i[345]86sol2) + basic_machine=`echo $1 | sed -e 's/86.*/86-unknown/'` + os=-solaris2 + ;; + iris | iris4d) + basic_machine=mips-sgi + case $os in + -irix*) + ;; + *) + os=-irix4 + ;; + esac + ;; + isi68 | isi) + basic_machine=m68k-isi + os=-sysv + ;; + m88k-omron*) + basic_machine=m88k-omron + ;; + magnum | m3230) + basic_machine=mips-mips + os=-sysv + ;; + merlin) + basic_machine=ns32k-utek + os=-sysv + ;; + miniframe) + basic_machine=m68000-convergent + ;; + mips3*-*) + basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` + ;; + mips3*) + basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown + ;; + ncr3000) + basic_machine=i486-ncr + os=-sysv4 + ;; + news | news700 | news800 | news900) + basic_machine=m68k-sony + os=-newsos + ;; + news1000) + basic_machine=m68030-sony + os=-newsos + ;; + news-3600 | risc-news) + basic_machine=mips-sony + os=-newsos + ;; + next | m*-next ) + basic_machine=m68k-next + case $os in + -nextstep* ) + ;; + -ns2*) + os=-nextstep2 + ;; + *) + os=-nextstep3 + ;; + esac + ;; + nh3000) + basic_machine=m68k-harris + os=-cxux + ;; + nh[45]000) + basic_machine=m88k-harris + os=-cxux + ;; + nindy960) + basic_machine=i960-intel + os=-nindy + ;; + np1) + basic_machine=np1-gould + ;; + pa-hitachi) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + paragon) + basic_machine=i860-intel + os=-osf + ;; + pbd) + basic_machine=sparc-tti + ;; + pbb) + basic_machine=m68k-tti + ;; + pc532 | pc532-*) + basic_machine=ns32k-pc532 + ;; + pentium | p5 | p6) + # We don't have specific support for the Intel Pentium (p6) followon yet, so just call it a Pentium + basic_machine=i586-intel + ;; + pentium-* | p5-* | p6-*) + # We don't have specific support for the Intel Pentium (p6) followon yet, so just call it a Pentium + basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + k5) + # We don't have specific support for AMD's K5 yet, so just call it a Pentium + basic_machine=i586-amd + ;; + nexen) + # We don't have specific support for Nexgen yet, so just call it a Pentium + basic_machine=i586-nexgen + ;; + pn) + basic_machine=pn-gould + ;; + power) basic_machine=rs6000-ibm + ;; + ppc) basic_machine=powerpc-unknown + ;; + ppc-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppcle | powerpclittle | ppc-le | powerpc-little) + basic_machine=powerpcle-unknown + ;; + ppcle-* | powerpclittle-*) + basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ps2) + basic_machine=i386-ibm + ;; + rm[46]00) + basic_machine=mips-siemens + ;; + rtpc | rtpc-*) + basic_machine=romp-ibm + ;; + sequent) + basic_machine=i386-sequent + ;; + sh) + basic_machine=sh-hitachi + os=-hms + ;; + sps7) + basic_machine=m68k-bull + os=-sysv2 + ;; + spur) + basic_machine=spur-unknown + ;; + sun2) + basic_machine=m68000-sun + ;; + sun2os3) + basic_machine=m68000-sun + os=-sunos3 + ;; + sun2os4) + basic_machine=m68000-sun + os=-sunos4 + ;; + sun3os3) + basic_machine=m68k-sun + os=-sunos3 + ;; + sun3os4) + basic_machine=m68k-sun + os=-sunos4 + ;; + sun4os3) + basic_machine=sparc-sun + os=-sunos3 + ;; + sun4os4) + basic_machine=sparc-sun + os=-sunos4 + ;; + sun4sol2) + basic_machine=sparc-sun + os=-solaris2 + ;; + sun3 | sun3-*) + basic_machine=m68k-sun + ;; + sun4) + basic_machine=sparc-sun + ;; + sun386 | sun386i | roadrunner) + basic_machine=i386-sun + ;; + symmetry) + basic_machine=i386-sequent + os=-dynix + ;; + tower | tower-32) + basic_machine=m68k-ncr + ;; + udi29k) + basic_machine=a29k-amd + os=-udi + ;; + ultra3) + basic_machine=a29k-nyu + os=-sym1 + ;; + vaxv) + basic_machine=vax-dec + os=-sysv + ;; + vms) + basic_machine=vax-dec + os=-vms + ;; + vxworks960) + basic_machine=i960-wrs + os=-vxworks + ;; + vxworks68) + basic_machine=m68k-wrs + os=-vxworks + ;; + vxworks29k) + basic_machine=a29k-wrs + os=-vxworks + ;; + xmp) + basic_machine=xmp-cray + os=-unicos + ;; + xps | xps100) + basic_machine=xps100-honeywell + ;; + none) + basic_machine=none-none + os=-none + ;; + +# Here we handle the default manufacturer of certain CPU types. It is in +# some cases the only manufacturer, in others, it is the most popular. + mips) + basic_machine=mips-mips + ;; + romp) + basic_machine=romp-ibm + ;; + rs6000) + basic_machine=rs6000-ibm + ;; + vax) + basic_machine=vax-dec + ;; + pdp11) + basic_machine=pdp11-dec + ;; + we32k) + basic_machine=we32k-att + ;; + sparc) + basic_machine=sparc-sun + ;; + cydra) + basic_machine=cydra-cydrome + ;; + orion) + basic_machine=orion-highlevel + ;; + orion105) + basic_machine=clipper-highlevel + ;; + *) + echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 + exit 1 + ;; +esac + +# Here we canonicalize certain aliases for manufacturers. +case $basic_machine in + *-digital*) + basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'` + ;; + *-commodore*) + basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'` + ;; + *) + ;; +esac + +# Decode manufacturer-specific aliases for certain operating systems. + +if [ x"$os" != x"" ] +then +case $os in + # -solaris* is a basic system type, with this one exception. + -solaris1 | -solaris1.*) + os=`echo $os | sed -e 's|solaris1|sunos4|'` + ;; + -solaris) + os=-solaris2 + ;; + -unixware* | svr4*) + os=-sysv4 + ;; + -gnu/linux*) + os=`echo $os | sed -e 's|gnu/linux|linux|'` + ;; + # First accept the basic system types. + # The portable systems comes first. + # Each alternative MUST END IN A *, to match a version number. + # -sysv* is not here because it comes later, after sysvr4. + -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \ + | -vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[345]* \ + | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \ + | -amigados* | -msdos* | -newsos* | -unicos* | -aos* \ + | -nindy* | -vxworks* | -ebmon* | -hms* | -mvs* | -clix* \ + | -riscos* | -linux* | -uniplus* | -iris* | -rtu* | -xenix* \ + | -hiux* | -386bsd* | -netbsd* | -freebsd* | -riscix* \ + | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* \ + | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ + | -udi* | -eabi* | -lites* ) + # Remember, each alternative MUST END IN *, to match a version number. + ;; + -sunos5*) + os=`echo $os | sed -e 's|sunos5|solaris2|'` + ;; + -sunos6*) + os=`echo $os | sed -e 's|sunos6|solaris3|'` + ;; + -osfrose*) + os=-osfrose + ;; + -osf*) + os=-osf + ;; + -utek*) + os=-bsd + ;; + -dynix*) + os=-bsd + ;; + -acis*) + os=-aos + ;; + -ctix* | -uts*) + os=-sysv + ;; + # Preserve the version number of sinix5. + -sinix5.*) + os=`echo $os | sed -e 's|sinix|sysv|'` + ;; + -sinix*) + os=-sysv4 + ;; + -triton*) + os=-sysv3 + ;; + -oss*) + os=-sysv3 + ;; + -svr4) + os=-sysv4 + ;; + -svr3) + os=-sysv3 + ;; + -sysvr4) + os=-sysv4 + ;; + # This must come after -sysvr4. + -sysv*) + ;; + -xenix) + os=-xenix + ;; + -none) + ;; + *) + # Get rid of the `-' at the beginning of $os. + os=`echo $os | sed 's/[^-]*-//'` + echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2 + exit 1 + ;; +esac +else + +# Here we handle the default operating systems that come with various machines. +# The value should be what the vendor currently ships out the door with their +# machine or put another way, the most popular os provided with the machine. + +# Note that if you're going to try to match "-MANUFACTURER" here (say, +# "-sun"), then you have to tell the case statement up towards the top +# that MANUFACTURER isn't an operating system. Otherwise, code above +# will signal an error saying that MANUFACTURER isn't an operating +# system, and we'll never get to this point. + +case $basic_machine in + *-acorn) + os=-riscix1.2 + ;; + arm*-semi) + os=-aout + ;; + pdp11-*) + os=-none + ;; + *-dec | vax-*) + os=-ultrix4.2 + ;; + m68*-apollo) + os=-domain + ;; + i386-sun) + os=-sunos4.0.2 + ;; + m68000-sun) + os=-sunos3 + # This also exists in the configure program, but was not the + # default. + # os=-sunos4 + ;; + *-tti) # must be before sparc entry or we get the wrong os. + os=-sysv3 + ;; + sparc-* | *-sun) + os=-sunos4.1.1 + ;; + *-ibm) + os=-aix + ;; + *-hp) + os=-hpux + ;; + *-hitachi) + os=-hiux + ;; + i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent) + os=-sysv + ;; + *-cbm) + os=-amigados + ;; + *-dg) + os=-dgux + ;; + *-dolphin) + os=-sysv3 + ;; + m68k-ccur) + os=-rtu + ;; + m88k-omron*) + os=-luna + ;; + *-sequent) + os=-ptx + ;; + *-crds) + os=-unos + ;; + *-ns) + os=-genix + ;; + i370-*) + os=-mvs + ;; + *-next) + os=-nextstep3 + ;; + *-gould) + os=-sysv + ;; + *-highlevel) + os=-bsd + ;; + *-encore) + os=-bsd + ;; + *-sgi) + os=-irix + ;; + *-siemens) + os=-sysv4 + ;; + *-masscomp) + os=-rtu + ;; + *) + os=-none + ;; +esac +fi + +# Here we handle the case where we know the os, and the CPU type, but not the +# manufacturer. We pick the logical manufacturer. +vendor=unknown +case $basic_machine in + *-unknown) + case $os in + -riscix*) + vendor=acorn + ;; + -sunos*) + vendor=sun + ;; + -lynxos*) + vendor=lynx + ;; + -aix*) + vendor=ibm + ;; + -hpux*) + vendor=hp + ;; + -hiux*) + vendor=hitachi + ;; + -unos*) + vendor=crds + ;; + -dgux*) + vendor=dg + ;; + -luna*) + vendor=omron + ;; + -genix*) + vendor=ns + ;; + -mvs*) + vendor=ibm + ;; + -ptx*) + vendor=sequent + ;; + -vxworks*) + vendor=wrs + ;; + esac + basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"` + ;; +esac + +echo $basic_machine$os diff --git a/doc/framing.txt b/doc/framing.txt new file mode 100644 index 0000000..9872a03 --- /dev/null +++ b/doc/framing.txt @@ -0,0 +1,293 @@ +******************************************************************** +* * +* THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE. * +* USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY * +* THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE. * +* PLEASE READ THESE TERMS DISTRIBUTING. * +* * +* THE OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-1999 * +* by 1999 Monty and The XIPHOPHORUS Company * +* http://www.xiph.org/ * +* * +******************************************************************** + + function: discussion of Vorbis framing + author: Monty , + modifications by: Monty + last modification date: Jun 30 1999 + +******************************************************************** + +Vorbis encodes short-time blocks of PCM data into raw packets of +bit-packed data. These raw packets may be used directly by transport +mechanisms that provide their own framing and packet-seperation +mechanisms (such as UDP datagrams). For stream based storage (such as +files) and transport (such as TCP streams or pipes), Vorbis also +specifies an additional layer of bitstream structure to provide +framing/sync, sync recapture after error, landmarks during seeking, +and enough information to properly seperate data back into packets at +the original packet boundaries without relying on decoding to find +packet boundaries. + +Design constraints: + +1) True streaming; we must not need to seek to build a 100% complete + bitstream. + +2) Use no more than approximately 1-2% of bitstream bandwidth for packet + boundary marking, high-level framing, sync and seeking. + +3) Specification of absolute position within the original sample stream. + +4) Simple mechanism to ease limited editing, such as a simplified + concatenation mechanism. + +5) Detection of corruption and recapture after error. + +A vorbis stream is structured by dividing packets into segments of up +to 255 bytes and then wrapping a group of contiguous packet segments +into a variable length page preceeded by a page header. Both the +header size and page size are variable; the page header contains +sizing information and checksum data to determine header/page size and +data integrity. + +The bitstream is captured (or recaptured) by looking for the beginning +of a page, specifically the capture pattern. Once the capture pattern +is found, the decoder verifies page sync and integrity by computing +and comparing the checksum. At that point, the decoder can extract the +packetss themselves. + +**** Packet segmentation + +Packets are logically divided into multiple segments before encoding +into a page. Note that the segmentation and fragmentation process is a +logical one; it's used to compute page header values and the original +page data need not be disturbed, even when a packet spans page +boundaries. + +The raw packet is logically divided into [n] 255 byte segments and a +last fractional segment of < 255 bytes. A packet size may well +consist only of the trailing fractional segment, and a fractional +segment may be zero length. These values, called "lacing values" are +then saved and placed into the header segment table. + +An example should make the basic concept clear: + +raw packet: + ___________________________________________ + |______________packet data__________________| 753 bytes + +lacing values for page header segment table: 255,255,243 + +We simply add the lacing values for the total size; the last lacing +value for a packet is always the value that is less than 255. Note +that this encoding both avoids imposing a maximum packet size as well +as imposing minimum overhead on small packets (as opposed to, eg, +simply using two bytes at the head of every packet and having a max +packet size of 32k. Small packets (<255, the typical case) are +penalized with twice the segmentation overhead). Using the lacing +values as suggested, small packets see the minimum possible +byte-aligned overheade (1 byte) and large packets, over 512 bytes or +so, see a fairly constant ~.5% overhead on encoding space. + +Clarification of boundary cases: + +Note that a lacing value of 255 implies that a second lacing value +follows in the packet, and a value of < 255 marks the end of the +packet after that many additional bytes. A packet of 255 bytes (or a +multiple of 255 bytes) is terminated by a lacing value of 0: + +raw packet: + _______________________________ + |________packet data____________| 255 bytes + +lacing values: 255, 0 + +Note also that a 'nil' (zero length) packet is not an error; it +consists of nothing more than a lacing value of zero in the header. + +**** Packets spanning pages: + +Packets are not resticted to beginning and ending within a page, +although individual segments are, by definition, required to do so. +Packets are not restricted to a maximum size, although excessively +large packets in the data stream are discouraged; the Vorbis +specification strongly recommend nominal page size of approximately +4-8kB (large packets are forseen as being useful for initialization +data at the beginning of a logical bitstream). + +After segmenting a packet, the encoder may decide not to place all the +resulting segments into the current page; to do so, the encoder places +the lacing values of the segments it wishes to belong to the current +page into the current segment table, then finishes the page. The next +page is begun with the first value in the segment table belonging to +the next packet segment, thus continuing the packet (data in the +packet body must also correspond properly to the lacing values in the +spanned pages. The segment data in the first packet corresponding to the +lacing values of the first page belong in that page; packet segments listed in the segment table of the following page must begin the page body of the subsequent page). + +The last mechanic to spanning a page boundary is to set the header +flag in the new page to indicate that the first lacing value in the +segment table continues rather than begins a packet; a header flag of +0x02 is used to indicate a continued packet. Although mandatory, it +is not actually algorithmically necessary; one could inspect the +preceeding segment table to determine if the packet is new or +continued. Adding the information to the packet_header flag allows a +simpler design (with no overhead) that needs only inspect the current +page header after frame capture. This also allows faster error +recovery in the event that the packet originates in a corrupt +preceeding page, implying that the previous page's segment table +cannot be trusted. + +Note that a packet can span an arbitrary number of pages; the above +spanning process is repeated for each spanned page boundary. Also a +'zero termination' on a packet size that is an even multiple of 255 +must appear even if the lacing value appears in the next page as a +zero-length continuation of the current packet. The header flag +should be set to 0x02 to indicate that the packet spanned, even though +the span is a nil case as far as data is concerned. + +The encoding looks odd, but is properly optimized for speed and the +expected case of the majority of packets being between 50 and 200 +bytes (note that it is designed such that packets of wildly different +sizes can be handled within the model; placing packet size +restrictions on the encoder would have only slightly simplified design +in page generation and increased overall encoder complexity). + +The main point behind tracking individual packets (and packet +segments) is to allow more flexible encoding tricks that requiring +explicit knowledge of packet size. An example is simple bandwidth +limiting, implemented by simply truncating packets in the nominal case +(the packet is arranged so that the least sensitive portion of the +data comes last). + +**** Page header + +The headering mechanism is designed to avoid copying and re-assembly +of the packet data; the header can be generated directly from incoming +packet data. The encoder buffers packet data until it finishes a +complete page at which point it writes the header followed by the +buffered packet segments. + +capture_pattern: + + A header begins with a capture pattern that simplifies identifying + pages; once the decoder has found the capture pattern it can do a more + intensive job of verifying that it has in fact found a page boundary + (as opposed to an inadvertant coincidence in the byte stream). + + byte value + 0 0x4f 'O' + 1 0x67 'g' + 2 0x67 'g' + 3 0x53 'S' + +stream_structure_version: + + The capture pattern is followed by the stream structure revision: + + 4 0x00 + + +header_type_flag: + + The header type flag identifies this page's context in the bitstream: + + 5 0x00 (beginning of bitstream) + 0x01 (bitstream continued, fresh packet) + 0x02 (bitstream continued, continued packet) + +PCM absolute position + + (This is packed in the same way the rest of Vorbis packet data is + packed; LSb of LSB first. Note that the 'position' data specifies a + sample number (eg, in a CD quality sample is four octets, 16 bits for + left and 16 bits for right). The position specified is the total + samples encoded after including all packets begun in this page. The + rationale here is that the position specified in the frame header of + the last page tells how long the PCM data coded by the bitstream is. + + 6 0xXX LSB + 7 0xXX + 8 0xXX + 9 0xXX + 10 0xXX + 11 0xXX + 12 0xXX + 13 0xXX MSB + +stream serial number: + + Vorbis allows for seperate logical bitstreams to be mixed at page + granularity in a physical bitstream. The most common case would be + sequential arrangement, but it is possible to interleave pages for + two seperate bitstreams to be decoded concurrently. Right now, the + standard code doesn't use the serial number (sets it to zero), but it + will eventually. Each logical stream must have a unique serial + number within a physical stream: + + 14 0xXX LSB + 15 0xXX + 16 0xXX + 17 0xXX MSB + +page sequence no + + Page counter; lets us know if a page is lost (useful where packets + span page boundaries). + + 18 0xXX LSB + 19 0xXX + 20 0xXX + 21 0xXX MSB + +page checksum + + 32 bit CRC value (direct algorithm, initial val and final XOR = 0, + generator polynomial=0x04c11db7). The value is computed over the + entire header (with the CRC field in the header set to zero) and then + continued over the page. The CRC field is then filled with the + computed value. + + (A thorough discussion of CRC algorithms can be found in "A Painless + Guide to CRC Error Detection Algorithms" by Ross Williams + (ross@guest.adelaide.edu.au). The document is available from + ftp://ftp.adelaide.edu.au/pub/rocksoft) + + 22 0xXX LSB + 23 0xXX + 24 0xXX + 25 0xXX MSB + +page_segments + + The number of segment entries to appear in the segment table. The + maximum number of 255 segments (255 bytes each) sets the maximum + possible physical page size at 65307 bytes or just under 64kB (thus + we know that a header corrupted so as destroy sizing/alignment + information will not cause a runaway bitstream. We'll read in the + page according to the corrupted size information that's guaranteed to + be a reasonable size regardless, notice the checksum mismatch, drop + sync and then look for recapture). + + 26 0x00-0xff (0-255) + +segment_table (containing packet lacing values) + + The lacing values for each packet segment physically appearing in + this page are listed in contiguous order. + + 27 0x00-0xff (0-255) + [...] + n 0x00-0xff (0-255, n=page_segments+26) + +Total page size is calculated directly from the known header size and +lacing values in the segment table. Packet data segments follow +immediately after the header. + +Page headers typically impose a flat .25-.5% space overhead assuming +nominal ~8k page sizes. The segmentation table needed for exact +packet recovery in the streaming layer adds approximately .5-1% +nominal assuming expected encoder behavior in the 44.1kHz, 128kbps +stereo encodings. + diff --git a/install.sh b/install.sh new file mode 100644 index 0000000..e69de29 diff --git a/lib/analysis.c b/lib/analysis.c new file mode 100644 index 0000000..dc31653 --- /dev/null +++ b/lib/analysis.c @@ -0,0 +1,311 @@ +/******************************************************************** + * * + * THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE. * + * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY * + * THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE. * + * PLEASE READ THESE TERMS DISTRIBUTING. * + * * + * THE OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-1999 * + * by 1999 Monty and The XIPHOPHORUS Company * + * http://www.xiph.org/ * + * * + ******************************************************************** + + function: PCM data vector blocking, windowing and dis/reassembly + author: Monty + modifications by: Monty + last modification date: Jun 26 1999 + + Handle windowing, overlap-add, etc of the original (and synthesized) + PCM vectors. This is made more amusing by Vorbis' current two allowed + block sizes (512 and 2048 elements/channel). + + Vorbis manipulates the dynamic range of the incoming PCM data + envelope to minimise time-domain energy leakage from percussive and + plosive waveforms being quantized in the MDCT domain. + + ********************************************************************/ + +#include + +/* pcm accumulator and multipliers + examples (not exhaustive): + + <-------------- lW-----------------> + <--------------- W ----------------> +: .....|..... _______________ | +: .''' | '''_--- | |\ | +:.....''' |_____--- '''......| | \_______| +:.................|__________________|_______|__|______| + |<------ Sl ------>| > Sr < |endW + |beginSl |endSl | |endSr + |beginW |endlW |beginSr + mult[0] mult[n] + + + |< lW >| + <--------------- W ----------------> + | | .. ______________ | + | | ' `/ | ---_ | + |___.'___/`. | ---_____| + |_______|__|_______|_________________| + | >|Sl|< |<------ Sr ----->|endW + | | |endSl |beginSr |endSr + |beginW | |endlW + mult[0] |beginSl mult[n] + + <-------------- lW-----------------> + |<-W-->| +: .............. __ | | +: .''' |`/ \ | | +:.....''' |/`...\|...| +:.........................|__||__|___| + |Sl||Sr|endW + | || |endSr + | ||beginSr + | |endSl + |beginSl + |beginW + mult[0] + mult[n] +*/ + +typedef struct vorbis_state{ + int samples_per_envelope_step; + int block_size[2]; + double *window[2][2][2]; /* windowsize, leadin, leadout */ + + double **pcm; + int pcm_storage; + int pcm_channels; + int pcm_current; + + double **deltas; + int **multipliers; + int envelope_storage; + int envelope_channels; + int envelope_current; + + int initflag; + + long lW; + long W; + long Sl; + long Sr; + + long beginW; + long endW; + long beginSl; + long endSl; + long beginSr; + long endSr; + + long frame; + long samples; + +} vorbis_state; + +/* arbitrary settings and spec-mandated numbers get filled in here */ +void vorbis_init_state(vorbis_state *v,int channels,int mode){ + memset(v,0,sizeof(vorbis_state)); + v->samples_per_envelope_step=64; + v->block_size[0]=512; + v->block_size[1]=2048; + + v->window[0][0][0]=vorbis_window(v->block_size[0], + v->block_size[0]/2,v->block_size[0]/2); + v->window[1][0][0]=vorbis_window(v->block_size[1], + v->block_size[0]/2,v->block_size[0]/2); + v->window[1][0][1]=vorbis_window(v->block_size[1], + v->block_size[0]/2,v->block_size[1]/2); + v->window[1][1][0]=vorbis_window(v->block_size[1], + v->block_size[1]/2,v->block_size[0]/2); + v->window[1][1][1]=vorbis_window(v->block_size[1], + v->block_size[1]/2,v->block_size[1]/2); + + /* initialize the storage vectors to a decent size greater than the + minimum */ + + v->pcm_storage=8192; /* 8k samples. we'll assume later that we have + a minimum of twice the blocksize (2k) of + accumulated samples in analysis */ + v->pcm_channels=channels; + v->pcm=malloc(channels*sizeof(double *)); + { + int i; + for(i=0;ipcm[i]=calloc(v->pcm_storage,sizeof(double)); + } + + /* Initialize the envelope multiplier storage */ + + v->envelope_storage=v->pcmstorage/v->samples_per_envelope_step+1; + v->envelope_channels=channels; + v->deltas=calloc(v->envelope_channels,sizeof(double *)); + v->multipliers=calloc(v->envelope_channels,sizeof(int *)); + { + int i; + for(i=0;ienvelope_channels;i++){ + v->deltas[i]=calloc(v->envelope_storage,sizeof(double)); + v->multipliers[i]=calloc(v->envelope_storage,sizeof(int)); + } + } + + /* all 1 (large block) or 0 (small block) */ + /*v->lW=0; previous window size */ + /*v->W=0; determined during analysis */ + /*v->Sl=0; previous Sr */ + /*v->Sr=0; determined during analysis */ + + /* all vector indexes; multiples of samples_per_envelope_step */ + /*v->beginW=0; determined during analysis */ + /*v->endW=0; determined during analysis */ + v->beginSl=v->block_size[1]/4-v->block_size[0]/4; + v->endSl=v->beginSl+v->block_size[0]/2; + /*v->beginSr=0; determined during analysis */ + /*v->endSr=0; determined during analysis */ + + /*v->frame=0;*/ + /*v->samples=0;*/ + + v->pcm_current=v->endSl; + v->last_multiplier=v->endSl/v->samples_per_envelope_step+1; + + v->initflag=1; +} + +void vorbis_free_state(vorbis_state *v){ + int i,j,k; + if(v){ + for(i=0;i<2;i++) + for(j=0;j<2;j++) + for(k=0;k<2;k++) + if(v->window[i][j][k])free(v->window[i][j][k]); + if(v->pcm){ + for(i=0;ipcm_channels;i++) + if(v->pcm[i])free(v->pcm[i]); + free(v->pcm); + } + if(v->deltas){ + for(i=0;ienvelope_channels;i++) + if(v->deltas[i])free(v->deltas[i]); + free(v->deltas); + } + if(v->multipliers){ + for(i=0;ienvelope_channels;i++) + if(v->multipliers[i])free(v->multipliers[i]); + free(v->multipliers); + } + free(v); + } +} + +int vorbis_analysis(vorbis_state *v, double **pcm, int vals){ + int i; + + /* vorbis encode state initialization */ + if(!v->initflag) + vorbis_init_settings(v); + + /* first we need to handle incoming data (if any) */ + + if(vals>0){ + /* Do we have enough storage space for the incoming data? If not, + expand the PCM storage */ + + if(v->pcm_current+vals>=pcm_storage){ + for(i=0;ipcm_channels;i++) + v->pcm[i]=realloc(v->pcm[i], + (v->pcm_current+vals*2)*sizeof(double)); + v->pcm_storage=v->pcm_current+vals*2; + } + + /* If we're encoding the end of the stream and we're handing in + padding, vals will be set, but the passed in buffer will be + NULL; just add in zeroes */ + + for(i=0;ipcm_channels;i++) + if(pcm==NULL) + memset(v->pcm[i]+v->pcm_current,0,vals*sizeof(double)); + else + memcpy(v->pcm[i]+v->pcm_current,pcm[i],vals*sizeof(double)); + + v->pcm_current+=vals; + } + + /* Do we definately have enough for a frame? We assume we have more + than actually necessary to encode the current block to make some + analysis easier. */ + + if(v->pcm_current-v->endSlblocksize[1]*2) + return(0); + + /* we have enough. begin analysis */ + /* complete the envelope analysis vectors */ + + + + /* decide the blocksize of this frame */ + + + /* algebra to set the rest of the window alignment vectors; many are + just derived, but they make the process clearer for the time + being */ + + + + /* the real analysis begins; forward MDCT with window */ + + + /* Noise floor, resolution floor */ + + /* encode the floor into LSP; get the actual floor back for quant */ + + /* use noise floor, res floor for culling, actual floor for quant */ + + /* encode residue */ + + /* advance storage vectors and clean up */ + /* center the window leadout on blocksize[1]/4 */ + { + int new_beginSr,new_endSr,movement,emove; + + /* first do the pcm storage */ + if(v->Sr){ + new_beginSl=0; + new_endSl=v->blocksize[1]/2; + }else{ + new_beginSl=v->blocksize[1]/4-v->blocksize[0]/4; + new_endSl=new_beginSr+v->blocksize[0]/2; + } + movement=v->beginSr-new_beginSl; + + for(i=0;ipcm_channels;i++) + memmove(v->pcm[i],v->pcm[i]+movement, + (v->pcm_current-movement)*sizeof(double)); + v->pcm_current-=movement; + v->lW=W; + v->Sl=v->Sr; + v->beginSl=new_beginSl; + v->endSl=new_endSl; + v->frame++; + v->samples+=movement; + + /* now advance the multipliers */ + emove=movement/samples_per_envelope_step; + for(i=0;ienvelope_channels;i++){ + memmove(v->deltas[i],v->deltas[i]+emove, + (v->envelope_current-emove)*sizeof(double)); + memmove(v->multipliers[i],v->multipliers[i]+emove, + (v->envelope_current-emove)*sizeof(int)); + } + v->envelope_current-=emove; + } + + /* done */ + return(1); +} + + + + diff --git a/lib/codec.h b/lib/codec.h new file mode 100644 index 0000000..80f35ef --- /dev/null +++ b/lib/codec.h @@ -0,0 +1,167 @@ +/******************************************************************** + * * + * THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE. * + * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY * + * THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE. * + * PLEASE READ THESE TERMS DISTRIBUTING. * + * * + * THE OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-1999 * + * by 1999 Monty and The XIPHOPHORUS Company * + * http://www.xiph.org/ * + * * + ******************************************************************** + + function: PCM data vector blocking, windowing and dis/reassembly + author: Monty + modifications by: Monty + last modification date: Jun 26 1999 + + ********************************************************************/ + +#ifndef _vorbis_codec_h_ +#define _vorbis_codec_h_ + +typedef struct vorbis_info{ + int channels; + int rate; + int version; + int mode; + char **user_comments; + char *vendor; + +} vorbis_info; + +typedef struct vorbis_dsp_state{ + int samples_per_envelope_step; + int block_size[2]; + double *window[2][2][2]; /* windowsize, leadin, leadout */ + + double **pcm; + int pcm_storage; + int pcm_channels; + int pcm_current; + + double **deltas; + int **multipliers; + int envelope_storage; + int envelope_channels; + int envelope_current; + + int initflag; + + long lW; + long W; + long Sl; + long Sr; + + long beginW; + long endW; + long beginSl; + long endSl; + long beginSr; + long endSr; + + long frame; + long samples; + +} vorbis_dsp_state; + +typedef struct { + unsigned char *header; + long header_len; + unsigned char *body; + long body_len; +} vorbis_page; + +typedef struct { + unsigned size32 crc_lookup[256]; + + unsigned char *body_data; /* bytes from packet bodies */ + long body_storage; + long body_fill; + long body_processed; + + int *lacing_vals; /* The values that will go to the segment table */ + size64 *pcm_vals; /* pcm_pos values for headers. Not compact + this way, but it is simple coupled to the + lacing fifo */ + long lacing_storage; + long lacing_fill; + + unsigned char header[282]; /* working space for header */ + int headerbytes; + + int e_o_s; /* set when we have buffered the last packet in the + logical bitstream */ + int b_o_s; /* set after we've written the initial page + of a logical bitstream */ + long serialno; + long pageno; +} vorbis_stream_state; + +typedef struct { + unsigned char *packet; + long bytes; + long e_o_s; + + size64 pcm_pos; + +} vorbis_packet; + +/* libvorbis encodes in two abstraction layers; first we perform DSP + and produce a packet (see docs/analysis.txt). The packet is then + coded into a framed bitstream by the second layer (see + docs/framing.txt). Decode is the reverse process; we sync/frame + the bitstream and extract individual packets, then decode the + packet back into PCM audio. + + The extra framing/packetizing is used in streaming formats, such as + files. Over the net (such as with UDP), the framing and + packetization aren't necessary as they're provided by the transport + and the streaming layer is not used */ + +/* ENCODING PRIMITIVES: analysis/DSP layer **************************/ + +extern int vorbis_analysis_init(vorbis_dsp_state *vd,vorbis_info *i); +extern void vorbis_dsp_state_free(vorbis_dsp_state *vd); +extern int vorbis_analysis_input(vorbis_dsp_state *vd,double **pcm,int vals); +extern int vorbis_analysis(vorbis_dsp_state *vd,vorbis_packet *vp); + +/* GENERAL PRIMITIVES: packet streaming layer ***********************/ + +extern int vorbis_stream_init(vorbis_stream_state *vs,int serialno); +extern int vorbis_stream_clear(vorbis_stream_state *vs); +extern int vorbis_stream_destroy(vorbis_stream_state *vs); +extern int vorbis_stream_eof(vorbis_stream_state *vs); + +/* ENCODING PRIMITIVES: packet streaming layer **********************/ + +extern int vorbis_stream_encode(vorbis_stream_state *vs,vorbis_packet *vp); +extern int vorbis_stream_page(vorbis_stream_state *vs, vorbis_page *vg); + +/* DECODING PRIMITIVES: packet streaming layer **********************/ + +/* returns nonzero when it has a complete vorbis packet synced and + framed for decoding. Generally, it wants to see two page headers at + proper spacing before returning 'yea'. An exception is the initial + header to make IDing the vorbis stream easier: it will return sync + on the page header + beginning-of-stream marker. + + _sync will also abort framing if is sees a problem in the packet + boundary lacing. */ + +extern int vorbis_stream_decode(vorbis_stream_state *vs,char *stream,int size); +extern int vorbis_stream_sync(vorbis_stream_state *vs); +extern int vorbis_stream_verify(vorbis_stream_state *vs); +extern size64 vorbis_stream_position(vorbis_stream_state *vs); +extern int vorbis_stream_skippage(vorbis_stream_state *vs); +extern int vorbis_stream_packet(vorbis_stream_state *vs,vorbis_packet *vp); + +/* DECODING PRIMITIVES: synthesis layer *****************************/ + +extern int vorbis_synthesis_info(vorbis_dsp_state *vd,vorbis_info *vi); +extern int vorbis_synthesis(vorbis_dsp_state *vd,vorbis_packet *vp); +extern int vorbis_synthesis_output(vorbis_dsp_state *vd,double **pcm); + +#endif + diff --git a/lib/envelope.c b/lib/envelope.c new file mode 100644 index 0000000..71efd4b --- /dev/null +++ b/lib/envelope.c @@ -0,0 +1,205 @@ +/******************************************************************** + * * + * THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE. * + * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY * + * THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE. * + * PLEASE READ THESE TERMS DISTRIBUTING. * + * * + * THE OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-1999 * + * by 1999 Monty and The XIPHOPHORUS Company * + * http://www.xiph.org/ * + * * + ******************************************************************** + + function: PCM data envelope analysis and manipulation + author: Monty + modifications by: Monty + last modification date: Jun 17 1999 + + Vorbis manipulates the dynamic range of the incoming PCM data + envelope to minimise time-domain energy leakage from percussive and + plosive waveforms being quantized in the MDCT domain. + + ********************************************************************/ + +#include +#include +#include + +static typedef struct { + int divisor; + double *window; +} envelope_lookup; + +static double oPI = 3.14159265358979323846; + +envelope_lookup *init_envelope(int length,int divleng){ + envelope_lookup *ret=malloc(sizeof(envelope_lookup)); + int i; + + ret->length=divleng; + ret->window=malloc(divleng*sizeof(double)*2); + + /* We just use a straight sin^2(x) window for this */ + for(i=0;iwindow[i]=temp*temp; + } +} + +/* right now, we do things simple and dirty. Should this prove + inadequate, then we'll think of something different. The details + of the encoding format do not depend on the exact behavior, only + the format of the bits that come out. + + Using residual from an LPC whitening filter to judge envelope + energy would probably yield cleaner results, but that's slow. + Let's see if simple delta analysis gives us acceptible results. */ + +int analyze_envelope0(double *vector, envelope_lookup *init, int n, + double *deltas){ + + int divisor=init->length; + int divs=n/divisor-1; + double *win=init->window; + int i,j,count=0; + + double max,spanlo,spanhi; + + /* initial and final blocks are special cases. Eg: + ______________ + \ + |_______|______\|_______|_______| + + ___________ + / \ + |_______|/______|______\|_______| + + _____________ + / + |_______|_______|/______|_______| + + as we go block by block, we watch the collective metrics span. If we + span the threshhold (assuming the threshhold is active), we use an + abbreviated vector */ + + /* initial frame */ + max=0; + for(i=1;ispanhi)spanhi=max; + if(threshhold>1 && spanlo*threshholdn0-divisor/2)break; + } + + /* last frame */ + if(!abbrevflag){ + max=0; + for(i=1;ispanhi)spanhi=max; + if(threshhold>1 && spanlo*threshholdlength; + int divs=n/divisor-1; + int i,triggerflag=0; + double spanlo,spanhi; + + spanlo=spanhi=deltas[0]; + + for(i=1;ispanhi)spanhi=max; + if(spanlo*triggerthresh and The XIPHOPHORUS Company * + * http://www.xiph.org/ * + * * + ******************************************************************** + + function: code raw Vorbis packets into framed vorbis stream and + decode vorbis streams back into raw packets + author: Monty + modifications by: Monty + last modification date: Jul 10 1999 + + note: The CRC code is directly derived from public domain code by + Ross Williams (ross@guest.adelaide.edu.au). See framing.txt for + details. + + ********************************************************************/ + +#include +#include +#include "codec.h" + +/* A complete description of Vorbis framing exists in docs/framing.txt */ + +/* helper to initialize lookup for direct-table CRC */ +static unsigned size32 _vorbis_crc_entry(unsigned long index){ + int i; + unsigned long r; + + r = index << 24; + for (i=0; i<8; i++) + if (r & 0x80000000UL) + r = (r << 1) ^ 0x04c11db7; /* The same as the ethernet generator + polynomial, although we use an + unreflected alg and an init/final + of 0, not 0xffffffff */ + else + r<<=1; + return (r & 0xffffffffUL); +} + +int vorbis_stream_init(vorbis_stream_state *vs,int serialno){ + int i; + if(vs){ + memset(vs,0,sizeof(vorbis_stream_state)); + vs->body_storage=16*1024; + vs->body_data=malloc(vs->body_storage*sizeof(char)); + + vs->lacing_storage=1024; + vs->lacing_vals=malloc(vs->lacing_storage*sizeof(int)); + vs->pcm_vals=malloc(vs->lacing_storage*sizeof(size64)); + + /* initialize the crc_lookup table */ + for (i=0;i<256;i++) + vs->crc_lookup[i]=_vorbis_crc_entry((unsigned long)i); + + vs->serialno=serialno; + + return(0); + } + return(-1); +} + +/* _clear does not free vs, only the non-flat storage within */ +int vorbis_stream_clear(vorbis_stream_state *vs){ + if(vs){ + if(vs->body_data)free(vs->body_data); + if(vs->lacing_vals)free(vs->lacing_vals); + if(vs->pcm_vals)free(vs->pcm_vals); + + memset(vs,0,sizeof(vorbis_stream_state)); + } + return(0); +} + +int vorbis_stream_destroy(vorbis_stream_state *vs){ + if(vs){ + vorbis_stream_clear(vs); + free(vs); + } + return(0); +} + +/* Helpers for vorbis_stream_encode; this keeps the structure and + what's happening fairly clear */ + +/* checksum the page */ +/* Direct table CRC; note that this will be faster in the future if we + perform the checksum silmultaneously with other copies */ + +static void _vs_checksum(vorbis_stream_state *vs,vorbis_page *vg){ + unsigned size32 crc_reg=0; + unsigned size32 *lookup=vs->crc_lookup; + int i; + + for(i=0;iheader_len;i++) + crc_reg=(crc_reg<<8)^lookup[((crc_reg >> 24)&0xff)^vg->header[i]]; + for(i=0;ibody_len;i++) + crc_reg=(crc_reg<<8)^lookup[((crc_reg >> 24)&0xff)^vg->body[i]]; + + vg->header[22]=crc_reg&0xff; + vg->header[23]=(crc_reg>>8)&0xff; + vg->header[24]=(crc_reg>>16)&0xff; + vg->header[25]=(crc_reg>>24)&0xff; +} + +/* submit data to the internal buffer of the framing engine */ +int vorbis_stream_encode(vorbis_stream_state *vs,vorbis_packet *vp){ + int lacing_vals=vp->bytes/255+1,i; + + /* make sure we have the buffer storage */ + if(vs->body_storage<=vs->body_fill+vp->bytes){ + vs->body_storage+=(vp->bytes+1024); + vs->body_data=realloc(vs->body_data,vs->body_storage); + } + if(vs->lacing_storage<=vs->lacing_fill+lacing_vals){ + vs->lacing_storage+=(lacing_vals+32); + vs->lacing_vals=realloc(vs->lacing_vals,vs->lacing_storage*sizeof(int)); + vs->pcm_vals=realloc(vs->pcm_vals,vs->lacing_storage*sizeof(size64)); + } + + /* Copy in the submitted packet. Yes, the copy is a waste; this is + the liability of overly clean abstraction for the time being. It + will actually be fairly easy to eliminate the extra copy in the + future */ + + memcpy(vs->body_data+vs->body_fill,vp->packet,vp->bytes); + vs->body_fill+=vp->bytes; + + /* Store lacing vals for this packet */ + for(i=0;ilacing_vals[vs->lacing_fill+i]=255; + vs->pcm_vals[vs->lacing_fill+i]=vp->pcm_pos; + } + vs->lacing_vals[vs->lacing_fill+i]=(vp->bytes)%255; + vs->pcm_vals[vs->lacing_fill+i]=vp->pcm_pos; + + /* flag the first segment as the beginning of the packet */ + vs->lacing_vals[vs->lacing_fill]|= 0x100; + + vs->lacing_fill+=lacing_vals; + + if(vp->e_o_s)vs->e_o_s=1; + + return(0); +} + +/* This constructs pages from buffered packet segments. The pointers +returned are to static buffers; do not free. The returned buffers are +good only until the next call (using the same vs) */ + +int vorbis_stream_page(vorbis_stream_state *vs, vorbis_page *vg){ + int i; + + if(vs->body_returned){ + /* advance packet data according to the body_returned pointer. We + had to keep it around to return a pointer into the buffer last + call */ + + vs->body_fill-=vs->body_returned; + memmove(vs->body_data,vs->body_data+vs->body_returned, + vs->body_fill*sizeof(char)); + vs->body_returned=0; + } + + if((vs->e_o_s&&vs->lacing_fill) || + vs->body_fill > 4096 || + vs->lacing_fill>=255){ + int vals=0,bytes=0; + int maxvals=(vs->lacing_fill>255?255:vs->lacing_fill); + long acc=0; + + /* construct a page */ + /* decide how many segments to include */ + for(vals=0;vals4096)break; + acc+=vs->lacing_vals[vals]&0x0ff; + } + + /* construct the header in temp storage */ + memcpy(vs->header,"OggS",4); + + /* stream structure version */ + vs->header[4]=0x00; + + if(vs->b_o_s==0){ + /* Ah, this is the first page */ + vs->header[5]=0x00; + }else{ + if(vs->lacing_vals[0]&0x100){ + /* The first packet segment is the beginning of a packet */ + vs->header[5]=0x01; + }else{ + vs->header[5]=0x02; + } + } + vs->b_o_s=1; + + /* 64 bits of PCM position */ + { + size64 pcm_pos=vs->pcm_vals[vals-1]; + + for(i=6;i<14;i++){ + vs->header[i]=(pcm_pos&0xff); + pcm_pos>>=8; + } + } + + /* 32 bits of stream serial number */ + { + long serialno=vs->serialno; + for(i=14;i<18;i++){ + vs->header[i]=(serialno&0xff); + serialno>>=8; + } + } + + /* 32 bits of page counter (we have both counter and page header + because this val can roll over) */ + { + long pageno=vs->pageno++; + for(i=18;i<22;i++){ + vs->header[i]=(pageno&0xff); + pageno>>=8; + } + } + + /* zero for computation; filled in later */ + vs->header[22]=0; + vs->header[23]=0; + vs->header[24]=0; + vs->header[25]=0; + + /* segment table */ + vs->header[26]=vals&0xff; + for(i=0;iheader[i+27]=(vs->lacing_vals[i]&0xff); + + /* advance the lacing data and set the body_returned pointer */ + + vs->lacing_fill-=vals; + memmove(vs->lacing_vals,vs->lacing_vals+vals,vs->lacing_fill*sizeof(int)); + memmove(vs->pcm_vals,vs->pcm_vals+vals,vs->lacing_fill*sizeof(size64)); + vs->body_returned=bytes; + + /* set pointers in the vorbis_page struct */ + vg->header=vs->header; + vg->header_len=vs->headerbytes=vals+27; + vg->body=vs->body_data; + vg->body_len=bytes; + + /* calculate the checksum */ + + _vs_checksum(vs,vg); + + return(1); + } + + /* not enough data to construct a page and not end of stream */ + return(0); +} + +int vorbis_stream_eof(vorbis_stream_state *vs){ + return vs->e_o_s; +} + +/* DECODING PRIMITIVES: packet streaming layer **********************/ + +/* Accepts data for decoding; syncs and frames the bitstream, then + decodes pages into packets. Works through errors and dropouts, + reporting holes/errors in the bitstream when the missing/corrupt + packet is requested by vorbis_stream_packet(). Call with size=-1 + for EOS */ + +/* all below: <0 error, 0 not enough data, >0 success */ + +int vorbis_stream_decode(vorbis_stream_state *vs,char *stream,int size){ + /* beginning a page? ie, no header started yet?*/ + if vs-> + + + + +} + +size64 vorbis_stream_pcmpos(vorbis_stream_state *vs){ +} + +size64 vorbis_stream_pageno(vorbis_stream_state *vs){ +} + +int vorbis_stream_skippage(vorbis_stream_state *vs){ +} + +int vorbis_stream_clearbuf(vorbis_stream_state *vs){ +} + +int vorbis_stream_packet(vorbis_stream_state *vs,vorbis_packet *vp){ +} + +#ifdef _V_SELFTEST +#include + +void test_pack(vorbis_stream_state *vs,int *pl, int **headers){ + unsigned char *data=malloc(1024*1024); /* for scripted test cases only */ + long inptr=0; + long outptr=0; + long pcm_pos=0; + int i,j,packets,pageno=0; + + for(packets=0;;packets++)if(pl[packets]==-1)break; + + for(i=0;i and The XIPHOPHORUS Company * + * http://www.xiph.org/ * + * * + ******************************************************************** + + function: modified discrete cosine transform + power of two length transform only [16 <= n ] + + author: Monty + modifications by: Monty + last modification date: Jun 04 1999 + + Algorithm adapted from _The use of multirate filter banks for coding + of high quality digital audio_, by T. Sporer, K. Brandenburg and + B. Edler, collection of the European Signal Processing Conference + (EUSIPCO), Amsterdam, June 1992, Vol.1, pp 211-214 + + Note that the below code won't make much sense without the paper; + The presented algorithm was already fairly polished, and the code + once followed it closely. The current code both corrects several + typos in the paper and goes beyond the presented optimizations + (steps 4 through 6 are, for example, entirely eliminated). + + This module DOES NOT INCLUDE code to generate the window function. + Everybody has their own weird favorite including me... I happen to + like the properties of y=sin(2PI*sin^2(x)), but others may vehemently + disagree. + + ********************************************************************/ + +#include +#include +#include +#include "mdct.h" + +static double oPI = 3.14159265358979323846; + +/* build lookups for trig functions; also pre-figure scaling and + some window function algebra. */ + +MDCT_lookup *MDCT_init(int n){ + MDCT_lookup *lookup=malloc(sizeof(MDCT_lookup)); + int *bitrev=malloc(sizeof(int)*(n/4)); + double *trig=malloc(sizeof(double)*(n+n/4)); + double *AE=trig; + double *AO=AE+n/4; + double *BE=AO+n/4; + double *BO=BE+n/4; + double *CE=BO+n/4; + double *CO=CE+n/8; + + int *bitA=bitrev; + int *bitB=bitrev+n/8; + + int i; + int log2n=lookup->log2n=rint(log(n)/log(2)); + lookup->n=n; + lookup->trig=trig; + lookup->bitrev=bitrev; + + /* trig lookups... */ + + for(i=0;i>j;j++) + if((msb>>j)&i)acc|=1<trig)free(l->trig); + if(l->bitrev)free(l->bitrev); + free(l); + } +} + +static inline void _MDCT_kernel(double *x, + int n, int n2, int n4, int n8, + MDCT_lookup *init){ + double *w=x+1; /* interleaved access improves cache locality */ + int i; + /* step 2 */ + + { + double *xA=x+n2; + double *xB=x; + double *w2=w+n2; + double *AE=init->trig+n4; + double *AO=AE+n4; + + for(i=0;ilog2n-3;i++){ + int k0=n>>(i+1); + int k1=1<<(i+2); + int wbase=n-4; + double *AE=init->trig; + double *AO=AE+n4; + double *temp; + + for(r=0;r<(n4>>i);r+=4){ + int w1=wbase; + int w2=wbase-(k0>>1); + wbase-=4; + + for(s=0;s<(2<trig+n; + double *CO=CE+n8; + int *bitA=init->bitrev; + int *bitB=bitA+n8; + double *x1=x; + double *x2=x+n-2; + for(i=0;in; + double *x=alloca(n*sizeof(double)); + int n2=n>>1; + int n4=n>>2; + int n8=n>>3; + int i; + + /* window + rotate + step 1 */ + { + double tempA,tempB; + int in1=n2+n4-4; + int in2=in1+5; + double *AE=init->trig+n4; + double *AO=AE+n4; + + i=0; + + for(i=0;itrig+n2; + double *BO=BE+n4; + double *out2=out+n2; + for(i=0;in; + double *x=alloca(n*sizeof(double)); + int n2=n>>1; + int n4=n>>2; + int n8=n>>3; + int i; + + /* window + rotate + step 1 */ + { + double *inO=in+1; + double *xO= x; + double *AE=init->trig+n4; + double *AO=AE+n4; + + for(i=0;itrig+n2; + double *BO=BE+n4; + int o1=n4,o2=o1-1; + int o3=n4+n2,o4=o3-1; + double scale=n/4.; + + for(i=0;i