3 # FFmpeg configure script
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
10 # Prevent locale nonsense from breaking basic text processing.
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
23 (: ${foo%%bar}) 2> /dev/null
26 (: ${foo?}) 2> /dev/null
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
32 if test "0$FF_CONF_EXEC" -lt 1; then
34 try_exec bash "$0" "$@"
36 if test "0$FF_CONF_EXEC" -lt 2; then
38 try_exec ksh "$0" "$@"
40 if test "0$FF_CONF_EXEC" -lt 3; then
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken FFmpeg."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
58 echo "Usage: configure [options]"
59 echo "Options: [defaults in brackets after descriptions]"
61 echo "Standard options:"
62 echo " --help print this message"
63 echo " --logfile=FILE log tests and output to FILE [config.err]"
64 echo " --disable-logging do not log configure debug information"
65 echo " --prefix=PREFIX install in PREFIX [$prefix]"
66 echo " --bindir=DIR install binaries in DIR [PREFIX/bin]"
67 echo " --libdir=DIR install libs in DIR [PREFIX/lib]"
68 echo " --shlibdir=DIR install shared libs in DIR [PREFIX/lib]"
69 echo " --incdir=DIR install includes in DIR [PREFIX/include]"
70 echo " --mandir=DIR install man page in DIR [PREFIX/share/man]"
71 echo " --enable-static build static libraries [yes]"
72 echo " --disable-static do not build static libraries [no]"
73 echo " --enable-shared build shared libraries [no]"
74 echo " --disable-shared do not build shared libraries [yes]"
75 echo " --enable-gpl allow use of GPL code, the resulting libs"
76 echo " and binaries will be under GPL [no]"
77 echo " --enable-nonfree allow use of nonfree code, the resulting libs"
78 echo " and binaries will be unredistributable [no]"
79 echo " --enable-postproc enable GPLed postprocessing support [no]"
80 echo " --enable-swscale enable GPLed software scaler support [no]"
81 echo " --enable-avfilter video filter support (replaces vhook) [no]"
82 echo " --enable-avfilter-lavf video filters dependent on avformat [no]"
83 echo " --disable-vhook disable video hooking support"
84 echo " --enable-beosthreads use BeOS threads [no]"
85 echo " --enable-os2threads use OS/2 threads [no]"
86 echo " --enable-pthreads use pthreads [no]"
87 echo " --enable-w32threads use Win32 threads [no]"
88 echo " --enable-x11grab enable X11 grabbing [no]"
89 echo " --enable-xvmc enable XvMC support [no]"
91 echo "External library support:"
92 echo " --enable-mlib enable Sun medialib [no]"
93 echo " --enable-avisynth enable reading of AVISynth script files [no]"
94 echo " --enable-bzlib enable bzlib [autodetect]"
95 echo " --enable-libamr-nb enable libamr-nb floating point audio codec [no]"
96 echo " --enable-libamr-wb enable libamr-wb floating point audio codec [no]"
97 echo " --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394"
98 echo " and libraw1394 [no]"
99 echo " --enable-libdirac enable Dirac support via libdirac [no]"
100 echo " --enable-libfaac enable FAAC support via libfaac [no]"
101 echo " --enable-libfaad enable FAAD support via libfaad [no]"
102 echo " --enable-libfaadbin open libfaad.so.0 at runtime [no]"
103 echo " --enable-libgsm enable GSM support via libgsm [no]"
104 echo " --enable-libmp3lame enable MP3 encoding via libmp3lame [no]"
105 echo " --enable-libnut enable NUT (de)muxing via libnut,"
106 echo " native (de)muxer exists [no]"
107 echo " --enable-libschroedinger enable Dirac support via libschroedinger [no]"
108 echo " --enable-libspeex enable Speex decoding via libspeex [no]"
109 echo " --enable-libtheora enable Theora encoding via libtheora [no]"
110 echo " --enable-libvorbis enable Vorbis encoding via libvorbis,"
111 echo " native implementation exists [no]"
112 echo " --enable-libx264 enable H.264 encoding via x264 [no]"
113 echo " --enable-libxvid enable Xvid encoding via xvidcore,"
114 echo " native MPEG-4/Xvid encoder exists [no]"
115 echo " --enable-zlib enable zlib [autodetect]"
117 echo "Advanced options (experts only):"
118 echo " --source-path=PATH path to source code [$source_path]"
119 echo " --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]"
120 echo " --enable-cross-compile assume a cross-compiler is used"
121 echo " --target-os=OS compiler targets OS [$target_os]"
122 echo " --target-exec=CMD command to run executables on target"
123 echo " --target-path=DIR path to view of build directory on target"
124 echo " --nm=NM use nm tool"
125 echo " --cc=CC use C compiler CC [$cc]"
126 echo " --host-cc=HOSTCC use host C compiler HOSTCC"
127 echo " --host-cflags=HCFLAGS use HCFLAGS when compiling for host"
128 echo " --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host"
129 echo " --host-libs=HLIBS use libs HLIBS when linking for host"
130 echo " --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]"
131 echo " --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
132 echo " --extra-libs=ELIBS add ELIBS [$ELIBS]"
133 echo " --extra-version=STRING version string suffix []"
134 echo " --build-suffix=SUFFIX library name suffix []"
135 echo " --arch=ARCH select architecture [$arch]"
136 echo " --cpu=CPU select the minimum required CPU (affects"
137 echo " instruction selection, may crash on older CPUs)"
138 echo " --enable-powerpc-perf enable performance report on PPC"
139 echo " (requires enabling PMC)"
140 echo " --disable-altivec disable AltiVec optimizations"
141 echo " --disable-mmx disable MMX optimizations"
142 echo " --disable-mmx2 disable MMX2 optimizations"
143 echo " --disable-ssse3 disable SSSE3 optimizations"
144 echo " --disable-armv5te disable armv5te optimizations"
145 echo " --disable-armv6 disable armv6 optimizations"
146 echo " --disable-armvfp disable ARM VFP optimizations"
147 echo " --disable-iwmmxt disable iwmmxt optimizations"
148 echo " --disable-mmi disable MMI optimizations"
149 echo " --disable-neon disable neon optimizations"
150 echo " --disable-vis disable VIS optimizations"
151 echo " --disable-network disable network support [no]"
152 echo " --disable-ipv6 disable IPv6 support [no]"
153 echo " --disable-mpegaudio-hp faster (but less accurate)"
154 echo " MPEG audio decoding [no]"
155 echo " --disable-aandct disable AAN DCT code"
156 echo " --disable-fft disable FFT code"
157 echo " --disable-golomb disable Golomb code"
158 echo " --disable-mdct disable MDCT code"
159 echo " --enable-gray enable full grayscale support (slower color)"
160 echo " --disable-ffmpeg disable ffmpeg build"
161 echo " --disable-ffplay disable ffplay build"
162 echo " --disable-ffserver disable ffserver build"
163 echo " --enable-small optimize for size instead of speed"
164 echo " --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
165 echo " --enable-memalign-hack emulate memalign, interferes with memory debuggers"
166 echo " --enable-beos-netserver enable BeOS netserver"
167 echo " --disable-encoder=NAME disable encoder NAME"
168 echo " --enable-encoder=NAME enable encoder NAME"
169 echo " --disable-encoders disable all encoders"
170 echo " --disable-decoder=NAME disable decoder NAME"
171 echo " --enable-decoder=NAME enable decoder NAME"
172 echo " --disable-decoders disable all decoders"
173 echo " --disable-muxer=NAME disable muxer NAME"
174 echo " --enable-muxer=NAME enable muxer NAME"
175 echo " --disable-muxers disable all muxers"
176 echo " --disable-demuxer=NAME disable demuxer NAME"
177 echo " --enable-demuxer=NAME enable demuxer NAME"
178 echo " --disable-demuxers disable all demuxers"
179 echo " --enable-parser=NAME enable parser NAME"
180 echo " --disable-parser=NAME disable parser NAME"
181 echo " --disable-parsers disable all parsers"
182 echo " --enable-bsf=NAME enable bitstream filter NAME"
183 echo " --disable-bsf=NAME disable bitstream filter NAME"
184 echo " --disable-bsfs disable all bitstream filters"
185 echo " --enable-protocol=NAME enable protocol NAME"
186 echo " --disable-protocol=NAME disable protocol NAME"
187 echo " --disable-protocols disable all protocols"
188 echo " --disable-indevs disable input devices"
189 echo " --disable-outdevs disable output devices"
190 echo " --disable-devices disable all devices"
191 echo " --enable-filter=NAME enable filter NAME"
192 echo " --disable-filter=NAME disable filter NAME"
193 echo " --disable-filters disable all filters"
194 echo " --list-decoders show all available decoders"
195 echo " --list-encoders show all available encoders"
196 echo " --list-muxers show all available muxers"
197 echo " --list-demuxers show all available demuxers"
198 echo " --list-parsers show all available parsers"
199 echo " --list-protocols show all available protocols"
200 echo " --list-bsfs show all available bitstream filters"
201 echo " --list-indevs show all available input devices"
202 echo " --list-outdevs show all available output devices"
203 echo " --list-filters show all available filters"
205 echo "Developer options (useful when working on FFmpeg itself):"
206 echo " --disable-debug disable debugging symbols"
207 echo " --enable-debug=LEVEL set the debug level [$debuglevel]"
208 echo " --enable-gprof enable profiling with gprof [$gprof]"
209 echo " --disable-optimizations disable compiler optimizations"
210 echo " --enable-extra-warnings enable more compiler warnings"
211 echo " --disable-stripping disable stripping of executables and shared libraries"
213 echo "NOTE: Object files are built at the place where configure is launched."
218 echo "$@" >> $logfile
223 pr -n -t $1 >> $logfile
235 If you think configure made a mistake, make sure you are using the latest
236 version from SVN. If the latest version fails, report the problem to the
237 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
239 if disabled logging; then
241 Rerun configure with logging enabled (do not use --disable-logging), and
242 include the log this produces with your report.
246 Include the log file "$logfile" produced by configure as this will help
250 rm -f $TMPC $TMPE $TMPH $TMPO $TMPS $TMPSH
254 # Avoid locale weirdness, besides we really just want to translate ASCII.
256 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
260 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
275 eval : \${$var:=$value}
281 eval level=\${${var}_level:=0}
282 eval ${var}_${level}="\$$var"
283 eval ${var}_level=$(($level+1))
289 eval level=\${${var}_level:-0}
290 test $level = 0 && continue
291 eval level=$(($level-1))
292 eval $var="\${${var}_${level}}"
293 eval ${var}_level=$level
294 eval unset ${var}_${level}
316 enabled $var && continue
317 eval sel="\$${var}_select"
318 eval sgs="\$${var}_suggest"
322 enable_deep_weak $sgs
338 test "${1#!}" = "$1" && op== || op=!=
339 eval test "x\$${1#!}" $op "xyes"
343 test "${1#!}" = "$1" && op== || op=!=
344 eval test "x\$${1#!}" $op "xno"
349 enabled $opt || return 1
355 disabled $opt || return 1
361 enabled $opt && return 0
367 disabled $opt && return 0
374 eval : \${$opt:=\$${opt}_default}
382 [ $var = $value ] && return 0
390 enabled ${cfg}_checking && die "Circular dependency for $cfg."
391 disabled ${cfg}_checking && continue
392 enable ${cfg}_checking
394 eval dep_all="\$${cfg}_deps"
395 eval dep_any="\$${cfg}_deps_any"
396 eval dep_sel="\$${cfg}_select"
397 eval dep_sgs="\$${cfg}_suggest"
399 pushvar cfg dep_all dep_any dep_sel dep_sgs
400 check_deps $dep_all $dep_any $dep_sel $dep_sgs
401 popvar cfg dep_all dep_any dep_sel dep_sgs
403 enabled_all $dep_all || disable $cfg
404 enabled_any $dep_any || disable $cfg
405 disabled_any $dep_sel && disable $cfg
407 if enabled $cfg; then
408 eval dep_extralibs="\$${cfg}_extralibs"
409 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
411 enable_deep_weak $dep_sgs
414 disable ${cfg}_checking
424 ucname="`toupper $cfg`"
425 if enabled $cfg; then
426 echo "#define ${pfx}${ucname} 1" >> $header
427 echo "#define ENABLE_${ucname} 1" >> $header
428 echo "${pfx}${ucname}=yes" >> $makefile
430 echo "#define ENABLE_${ucname} 0" >> $header
436 (: ${SAVE_CFLAGS?}) 2> /dev/null
440 flags_saved && return
441 SAVE_CFLAGS="$CFLAGS"
442 SAVE_LDFLAGS="$LDFLAGS"
443 SAVE_extralibs="$extralibs"
447 flags_saved || return
448 CFLAGS="$SAVE_CFLAGS"
449 LDFLAGS="$SAVE_LDFLAGS"
450 extralibs="$SAVE_extralibs"
463 LDFLAGS="$LDFLAGS $*"
468 extralibs="$extralibs $*"
474 flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
475 eval "$var=\"\$$var $*\""
487 append extralibs "$@"
492 "$@" >> $logfile 2>&1
499 check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
506 check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
514 check_cc "$@" <<EOF && enable $name || disable $name
515 void foo(void){ __asm__ volatile($asm); }
524 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
533 test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
535 check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
539 log check_cflags "$@"
540 check_cc "$@" <<EOF && add_cflags "$@"
546 log check_ldflags "$@"
547 check_ld "$@" <<EOF && add_ldflags "$@"
548 int main(void){ return 0; }
553 log check_header "$@"
556 var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
558 check_cpp "$@" <<EOF && enable $var
569 check_ld "$@" <<EOF && enable $func
571 int main(void){ $func(); }
575 check_func_headers(){
576 log check_func_headers "$@"
582 for hdr in $headers; do
586 check_ld "$@" <<EOF && enable $func
588 int main(int argc, char **argv){
595 check_cpp_condition(){
596 log check_cpp_condition "$@"
602 #error "unsatisfied condition: $condition"
613 check_header $header && check_func $func && add_extralibs "$@"
625 check_func_headers "$headers" $func && add_extralibs "$@"
632 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
638 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
639 # are safe but may not be available everywhere. Thus we use
640 # raise(SIGTERM) instead. The check is run in a subshell so we
641 # can redirect the "Terminated" message from the shell. SIGBUS
642 # is not defined by standard C so it is used conditionally.
644 (check_exec "$@") >> $logfile 2>&1 <<EOF
646 static void sighandler(int sig){
650 signal(SIGILL, sighandler);
651 signal(SIGFPE, sighandler);
652 signal(SIGSEGV, sighandler);
654 signal(SIGBUS, sighandler);
668 for hdr in $headers; do
672 check_cc "$@" <<EOF && enable $type
683 check_lib $header $func "$@" || die "ERROR: $name not found"
691 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
701 check_cmd ${pkg}-config --version
703 if test "$err" = 0; then
704 temp_cflags `${pkg}-config --cflags`
705 temp_extralibs `${pkg}-config --libs`
706 check_lib "$@" $header $func && enable $cfg
714 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
717 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
718 # system-dependent things.
835 dev_bktr_ioctl_bt848_h
836 dev_bktr_ioctl_meteor_h
838 dev_video_meteor_ioctl_meteor_h
839 dev_video_bktr_ioctl_bt848_h
861 machine_ioctl_bt848_h
862 machine_ioctl_meteor_h
886 # options emitted with CONFIG_ prefix but not available on command line
933 # code dependency declarations
935 # architecture extensions
950 fft_suggest="fft_mmx"
951 fft_mmx_deps="mmx yasm"
952 oldscaler_deps="!swscale"
954 # decoders / encoders
955 aac_decoder_select="fft mdct"
956 ac3_decoder_deps="gpl"
957 ac3_decoder_select="fft mdct"
958 atrac3_decoder_select="fft mdct"
959 cavs_decoder_select="golomb"
960 cook_decoder_select="fft mdct"
961 cscd_decoder_suggest="zlib"
962 dca_decoder_select="fft mdct"
963 dnxhd_encoder_select="aandct"
964 dxa_decoder_select="zlib"
965 eac3_decoder_deps="gpl"
966 eac3_decoder_select="fft mdct"
967 eatgq_decoder_select="aandct"
968 ffv1_decoder_select="golomb"
969 flac_decoder_select="golomb"
970 flac_encoder_select="golomb"
971 flashsv_decoder_select="zlib"
972 flashsv_encoder_select="zlib"
973 flv_encoder_select="aandct"
974 h261_encoder_select="aandct"
975 h263_encoder_select="aandct"
976 h263p_encoder_select="aandct"
977 h264_decoder_select="golomb"
978 h264_vdpau_decoder_deps="vdpau"
979 imc_decoder_select="fft mdct"
980 jpegls_decoder_select="golomb"
981 jpegls_encoder_select="golomb"
982 ljpeg_encoder_select="aandct"
983 loco_decoder_select="golomb"
984 mjpeg_encoder_select="aandct"
985 mpeg1video_encoder_select="aandct"
986 mpeg2video_encoder_select="aandct"
987 mpeg4_encoder_select="aandct"
988 mpeg_xvmc_decoder_deps="xvmc X11_extensions_XvMClib_h"
989 msmpeg4v1_encoder_select="aandct"
990 msmpeg4v2_encoder_select="aandct"
991 msmpeg4v3_encoder_select="aandct"
992 nellymoser_decoder_select="fft mdct"
993 nellymoser_encoder_select="fft mdct"
994 png_decoder_select="zlib"
995 png_encoder_select="zlib"
996 qdm2_decoder_select="fft mdct"
997 rv10_encoder_select="aandct"
998 rv20_encoder_select="aandct"
999 shorten_decoder_select="golomb"
1000 sonic_decoder_select="golomb"
1001 sonic_encoder_select="golomb"
1002 sonic_ls_encoder_select="golomb"
1003 svq3_decoder_select="golomb"
1004 svq3_decoder_suggest="zlib"
1005 tiff_decoder_suggest="zlib"
1006 tiff_encoder_suggest="zlib"
1007 tscc_decoder_select="zlib"
1008 vorbis_decoder_select="fft mdct"
1009 vorbis_encoder_select="fft mdct"
1010 wmav1_decoder_select="fft mdct"
1011 wmav1_encoder_select="fft mdct"
1012 wmav2_decoder_select="fft mdct"
1013 wmav2_encoder_select="fft mdct"
1014 wmv1_encoder_select="aandct"
1015 wmv2_encoder_select="aandct"
1016 zlib_decoder_select="zlib"
1017 zlib_encoder_select="zlib"
1018 zmbv_decoder_select="zlib"
1019 zmbv_encoder_select="zlib"
1021 # external libraries
1022 libamr_nb_decoder_deps="libamr_nb"
1023 libamr_nb_encoder_deps="libamr_nb"
1024 libamr_wb_decoder_deps="libamr_wb"
1025 libamr_wb_encoder_deps="libamr_wb"
1026 libdirac_decoder_deps="libdirac !libschroedinger"
1027 libdirac_encoder_deps="libdirac"
1028 libfaac_encoder_deps="libfaac"
1029 libfaad_decoder_deps="libfaad"
1030 libfaadbin_decoder_extralibs='$ldl'
1031 libgsm_decoder_deps="libgsm"
1032 libgsm_encoder_deps="libgsm"
1033 libgsm_ms_decoder_deps="libgsm"
1034 libgsm_ms_encoder_deps="libgsm"
1035 libmp3lame_encoder_deps="libmp3lame"
1036 libschroedinger_decoder_deps="libschroedinger"
1037 libschroedinger_encoder_deps="libschroedinger"
1038 libspeex_decoder_deps="libspeex"
1039 libtheora_encoder_deps="libtheora"
1040 libvorbis_encoder_deps="libvorbis"
1041 libx264_encoder_deps="libx264"
1042 libxvid_encoder_deps="libxvid"
1043 mpeg4aac_decoder_deps="libfaad"
1046 ac3_demuxer_deps="ac3_parser"
1047 audio_beos_demuxer_deps="audio_beos"
1048 audio_beos_demuxer_extralibs="-lmedia -lbe"
1049 audio_beos_muxer_deps="audio_beos"
1050 audio_beos_muxer_extralibs="-lmedia -lbe"
1051 avisynth_demuxer_deps="avisynth"
1052 bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1053 dirac_demuxer_deps="dirac_parser"
1054 dv1394_demuxer_deps="dv1394 dv_demuxer"
1055 libdc1394_demuxer_deps="libdc1394"
1056 libnut_demuxer_deps="libnut"
1057 libnut_muxer_deps="libnut"
1058 matroska_demuxer_suggest="zlib bzlib"
1059 mov_demuxer_suggest="zlib"
1060 mp3_demuxer_deps="mpegaudio_parser"
1061 oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
1062 oss_muxer_deps_any="soundcard_h sys_soundcard_h"
1063 redir_demuxer_deps="network"
1064 rtp_muxer_deps="network rtp_protocol"
1065 rtsp_demuxer_deps="sdp_demuxer"
1066 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1067 v4l_demuxer_deps="linux_videodev_h"
1068 v4l2_demuxer_deps_any="linux_videodev2_h sys_videoio_h"
1069 vfwcap_demuxer_deps="capCreateCaptureWindow"
1070 vfwcap_demuxer_extralibs="-lvfw32"
1071 x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
1072 x11_grab_device_demuxer_extralibs="-lX11 -lXext"
1075 http_protocol_deps="network"
1076 rtp_protocol_deps="udp_protocol"
1077 tcp_protocol_deps="network"
1078 udp_protocol_deps="network"
1081 movie_filter_deps="avfilter_lavf"
1085 ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1086 ffserver_extralibs='$ldl'
1087 vhook_extralibs='$ldl'
1090 # default parameters
1092 logfile="config.err"
1094 # installation paths
1095 prefix_default="/usr/local"
1096 bindir_default='${prefix}/bin'
1097 incdir_default='${prefix}/include'
1098 libdir_default='${prefix}/lib'
1099 mandir_default='${prefix}/share/man'
1100 shlibdir_default="$libdir_default"
1104 host_cc_default="gcc"
1118 target_os=$(tolower $(uname -s))
1120 # configurable options
1129 enable optimizations
1136 add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1137 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1138 VHOOKSHFLAGS='$(SHFLAGS)'
1139 FFSERVERLDFLAGS=-Wl,-E
1142 FULLNAME='$(NAME)$(BUILDSUF)'
1143 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1146 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1147 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1148 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1149 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1151 host_cflags='-O3 -g -Wall'
1156 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1157 # full relative path for objects in subdirectories for non-recursive Make.
1158 DEPEND_CMD='$(CC) $(CFLAGS) -MM -MG $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," -e "s,\\([[:space:]]\\)\\(version\\.h\\),\\1\$$(BUILD_ROOT_REL)/\\2,"'
1161 source_path="`dirname \"$0\"`"
1162 enable source_path_used
1163 if test -z "$source_path" -o "$source_path" = "." ; then
1165 disable source_path_used
1167 source_path="`cd \"$source_path\"; pwd`"
1168 echo "$source_path" | grep -q '[[:blank:]]' &&
1169 die "Out of tree builds are impossible with whitespace in source path."
1172 FFMPEG_CONFIGURATION="$@"
1177 file=$source_path/$3
1178 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1181 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1182 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
1183 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1184 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1185 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1186 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
1187 OUTDEV_LIST=$(find_things muxer _MUX libavdevice/alldevices.c)
1188 INDEV_LIST=$(find_things demuxer DEMUX libavdevice/alldevices.c)
1189 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1190 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
1192 enable $ARCH_EXT_LIST \
1205 echo "Unknown option \"$1\"."
1206 echo "See $0 --help for available options."
1213 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1220 --extra-cflags=*) add_cflags "$optval"
1222 --extra-ldflags=*) add_ldflags "$optval"
1224 --extra-libs=*) add_extralibs "$optval"
1226 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1228 --enable-debug=*) debuglevel="$optval"
1230 --enable-*=*|--disable-*=*)
1231 eval `echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/'`
1233 encoder|decoder|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1234 *) die_unknown "$opt" ;;
1237 --enable-?*|--disable-?*)
1238 eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
1239 if is_in $option $COMPONENT_LIST; then
1240 eval $action \$$(toupper ${option%s})_LIST
1241 elif is_in $option $CMDLINE_SELECT; then
1248 NAME="${opt#--list-}"
1249 is_in $NAME $COMPONENT_LIST || die_unknown $opt
1251 eval show_list $NAME \$$(toupper $NAME)_LIST
1253 --help|-h) show_help
1256 optname="${opt%%=*}"
1257 optname="${optname#--}"
1258 optname=$(echo "$optname" | sed 's/-/_/g')
1259 is_in $optname $CMDLINE_SET || die_unknown $opt
1260 eval $optname='$optval'
1265 disabled logging && logfile=/dev/null
1267 echo "# $0 $@" > $logfile
1270 test -n "$cross_prefix" && enable cross_compile
1272 cc_default="${cross_prefix}${cc_default}"
1273 yasmexe="${cross_prefix}${yasmexe}"
1274 ar="${cross_prefix}${ar}"
1275 nm_default="${cross_prefix}${nm_default}"
1276 ranlib="${cross_prefix}${ranlib}"
1277 strip="${cross_prefix}${strip}"
1280 enabled cross_compile || host_cc_default=$cc
1283 # set temporary file name
1284 : ${TMPDIR:=$TEMPDIR}
1288 TMPC="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.c"
1289 TMPE="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}${EXESUF}"
1290 TMPH="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.h"
1291 TMPO="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.o"
1292 TMPS="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.S"
1293 TMPSH="${TMPDIR}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.sh"
1295 check_cflags -std=c99
1298 i386|i486|i586|i686|i86pc|BePC)
1300 enable fast_unaligned
1306 enable fast_unaligned
1307 check_cc <<EOF && enable fast_64bit && arch="x86_64"
1308 int test[sizeof(char*) - 7];
1318 "Power Macintosh"|ppc|powerpc)
1320 enable fast_unaligned
1325 enable fast_unaligned
1370 enabled_any x86_32 x86_64 && enable x86
1371 enabled sparc64 && enable sparc
1376 prefix_default="$HOME/config"
1377 # helps building libavcodec
1378 add_cflags "-DPIC -fomit-frame-pointer"
1379 # 3 gcc releases known for BeOS, each with ugly bugs
1380 gcc_version="`$cc -v 2>&1 | grep version | cut -d ' ' -f3-`"
1381 case "$gcc_version" in
1382 2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1385 *20010315*) echo "BeBits gcc"
1386 add_cflags "-fno-expensive-optimizations"
1390 # enable BeOS things
1392 # no need for libm, but the inet stuff
1394 # XXX: actually should check for NOT net_server
1395 if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1396 network_extralibs="-lbind -lsocket"
1398 enable beos_netserver
1399 network_extralibs="-lnet"
1403 SHFLAGS='-shared -Wl,-h,$$(@F)'
1404 network_extralibs="-lsocket -lnsl"
1405 add_cflags -D__EXTENSIONS__
1408 oss_demuxer_extralibs="-lossaudio"
1409 oss_muxer_extralibs="-lossaudio"
1412 disable need_memalign
1413 LIBOBJFLAGS='$(PIC)'
1415 oss_demuxer_extralibs="-lossaudio"
1416 oss_muxer_extralibs="-lossaudio"
1419 disable need_memalign
1422 osextralibs="-lpoll -lgnugetopt"
1426 disable need_memalign
1427 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1428 VHOOKSHFLAGS='-dynamiclib -Wl,-single_module -flat_namespace -undefined suppress -Wl,-install_name,$(SHLIBDIR)/vhook/$$(@F)'
1430 FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1432 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1433 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1434 FFSERVERLDFLAGS=-Wl,-bind_at_load
1436 enabled x86_64 && objformat="macho64"
1441 if test $arch = x86_64; then
1442 disable need_memalign
1445 shlibdir_default="$bindir_default"
1446 VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'
1447 VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
1448 if enabled swscale; then
1449 VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"
1450 VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"
1456 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1457 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1458 SLIB_EXTRA_CMD='-lib /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1459 SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1460 install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1461 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1462 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1465 check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1466 die "ERROR: MinGW runtime version must be >= 3.15."
1467 enabled_any avisynth vfwcap_demuxer &&
1468 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1469 die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1473 shlibdir_default="$bindir_default"
1474 VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'
1475 VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
1476 if enabled swscale; then
1477 VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"
1478 VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"
1483 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1484 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1485 SHFLAGS='-shared -Wl,--enable-auto-image-base'
1489 *-dos|freedos|opendos)
1490 disable ffplay ffserver vhook
1491 disable $INDEV_LIST $OUTDEV_LIST
1492 network_extralibs="-lsocket"
1502 ranlib="echo ignoring ranlib"
1508 FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1509 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1514 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1515 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1516 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1517 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1518 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1519 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1520 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1521 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1522 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1523 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1524 SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1525 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1534 target_os="${target_os}-UNKNOWN"
1538 set_default $PATHS_LIST
1540 add_extralibs $osextralibs
1542 # Combine FFLDFLAGS and the LDFLAGS environment variable.
1543 LDFLAGS="$FFLDFLAGS $LDFLAGS"
1545 # we need to build at least one lib type
1546 if ! enabled_any static shared; then
1548 At least one library type must be built.
1549 Specify --enable-static to build the static libraries or --enable-shared to
1550 build the shared libraries as well. To only build the shared libraries specify
1551 --disable-static in addition to --enable-shared.
1556 disabled static && LIBNAME=""
1558 if enabled_any libfaad libfaadbin ; then
1559 if check_header faad.h; then
1562 #ifndef FAAD2_VERSION
1565 int main(void) { return 0; }
1567 test $? = 0 && enable libfaad2
1569 die "FAAD test failed."
1574 if ! enabled gpl; then
1578 enabled_any $@ && die "$name is under GPL and --enable-gpl is not specified."
1580 die_gpl_disabled "The Postprocessing code" postproc
1581 die_gpl_disabled "libx264" libx264
1582 die_gpl_disabled "libxvidcore" libxvid
1583 die_gpl_disabled "FAAD2" libfaad2
1584 die_gpl_disabled "The X11 grabber" x11grab
1585 die_gpl_disabled "The software scaler" swscale
1588 if ! enabled nonfree && enabled_any libamr_nb libamr_wb; then
1589 die "libamr is nonfree and --enable-nonfree is not specified."
1592 check_deps $ARCH_EXT_LIST
1594 test -z "$need_memalign" && need_memalign="$mmx"
1597 if test $target_os = darwin; then
1598 if $cc -v 2>&1 | grep -q xlc; then
1599 add_cflags "-qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto"
1602 check_cflags "-force_cpusubtype_ALL"
1603 check_cflags "-Wno-sign-compare"
1604 enabled shared || check_cflags -mdynamic-no-pic
1608 disabled optimizations || check_cflags -fomit-frame-pointer
1610 # Add processor-specific flags
1611 if test $cpu != "generic"; then
1613 $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1616 601|ppc601|PowerPC601)
1617 add_cflags "-mcpu=601"
1618 warn_altivec enabled PPC601
1620 603*|ppc603*|PowerPC603*)
1621 add_cflags "-mcpu=603"
1622 warn_altivec enabled PPC603
1624 604*|ppc604*|PowerPC604*)
1625 add_cflags "-mcpu=604"
1626 warn_altivec enabled PPC604
1628 G3|g3|75*|ppc75*|PowerPC75*)
1629 add_cflags "-mcpu=750 -mpowerpc-gfxopt"
1630 warn_altivec enabled PPC75x
1632 G4|g4|745*|ppc745*|PowerPC745*)
1633 add_cflags "-mcpu=7450 -mpowerpc-gfxopt"
1634 warn_altivec disabled PPC745x
1636 74*|ppc74*|PowerPC74*)
1637 add_cflags "-mcpu=7400 -mpowerpc-gfxopt"
1638 warn_altivec disabled PPC74xx
1640 G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1641 add_cflags "-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1642 warn_altivec disabled PPC970
1646 add_cflags "-mcpu=cell"
1647 warn_altivec disabled Cell
1650 # targets that do NOT support conditional mov (cmov)
1651 i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1652 add_cflags "-march=$cpu"
1655 # targets that do support conditional mov (cmov)
1656 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1657 add_cflags "-march=$cpu"
1661 # targets that do support conditional mov but on which it's slow
1662 pentium4|pentium4m|prescott|nocona)
1663 add_cflags "-march=$cpu"
1668 add_cflags "-mcpu=v9"
1671 add_cflags "-mcpu=$cpu"
1672 enable fast_unaligned
1675 add_cflags "-march=$cpu"
1678 add_cflags "-mcpu=$cpu"
1681 echo "WARNING: Unknown CPU \"$cpu\", ignored."
1686 # make sure we can execute files in $TMPDIR
1687 cat > $TMPSH 2>> $logfile <<EOF
1690 chmod +x $TMPSH >> $logfile 2>&1
1691 if ! $TMPSH >> $logfile 2>&1; then
1693 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
1694 variable to another directory and make sure that it is not mounted noexec.
1696 die "Sanity test failed."
1700 # compiler sanity check
1702 int main(void){ return 0; }
1704 if test "$?" != 0; then
1705 echo "$cc is unable to create an executable file."
1706 if test -z "$cross_prefix" && ! enabled cross_compile ; then
1707 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1708 echo "Only do this if you know what cross compiling means."
1710 die "C compiler test failed."
1713 check_cc <<EOF || die "Symbol mangling check failed."
1716 sym=$($nm -P -g $TMPO | grep ff_extern)
1717 extern_prefix=${sym%%ff_extern*}
1719 check_asm inline_asm '""'
1721 if enabled x86; then
1722 # check whether EBP is available on x86
1723 # As 'i' is stored on the stack, this program will crash
1724 # if the base pointer is used to access it because the
1725 # base pointer is cleared in the inline assembly code.
1726 check_exec_crash <<EOF && enable ebp_available
1734 # check wether EBX is available on x86
1735 check_asm ebx_available '"":::"%ebx"'
1737 # check whether binutils is new enough to compile SSSE3/MMX2
1738 enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1739 enabled mmx2 && check_asm mmx2 '"movss %xmm0, %xmm0"'
1741 check_asm bswap '"bswap %%eax" ::: "%eax"'
1743 YASMFLAGS="-f $objformat -DARCH_$(toupper $arch)"
1744 enabled x86_64 && append YASMFLAGS "-m amd64"
1745 enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1746 case "$objformat" in
1747 elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1748 macho64) append YASMFLAGS "-DPIC -DPREFIX" ;;
1749 *) append YASMFLAGS "-DPREFIX" ;;
1751 check_yasm "pabsw xmm0, xmm0" && enable yasm
1754 # check for assembler specific support
1756 if test $arch = "ppc"; then
1757 check_asm dcbzl '"dcbzl 0, 1"'
1760 # check for SIMD availability
1762 # AltiVec flags: The FSF version of GCC differs from the Apple version
1763 if enabled altivec; then
1764 check_cflags -maltivec -mabi=altivec &&
1765 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1766 check_cflags -faltivec
1768 # check if our compiler supports Motorola AltiVec C API
1769 check_cc <<EOF || disable altivec
1772 vector signed int v1, v2, v3;
1773 v1 = vec_add(v2,v3);
1778 # check if our compiler supports braces for vector declarations
1779 check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1781 int main (void) { (vector int) {1}; return 0; }
1785 # We have to check if pld is a nop and disable it.
1786 enabled arm && check_asm pld '"pld [r0]"'
1787 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1788 enabled armv6 && check_asm armv6 '"sadd16 r0, r0, r0"'
1789 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
1790 enabled armvfp && check_asm armvfp '"fadds s0, s0, s0"'
1791 enabled iwmmxt && check_asm iwmmxt '"wunpckelub wr6, wr4"'
1792 enabled mmi && check_asm mmi '"lq $2, 0($2)"'
1793 enabled neon && check_asm neon '"vadd.i16 q0, q0, q0"'
1794 enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
1796 enabled vis && add_cflags "-mcpu=ultrasparc -mtune=ultrasparc"
1799 # big/little-endian test
1800 check_cc <<EOF || die "endian test failed"
1801 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
1803 od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
1806 # check availability of some header files
1808 if check_func dlopen; then
1810 elif check_func dlopen -ldl; then
1815 check_func gethrtime
1816 check_func getrusage
1817 check_func inet_aton $network_extralibs
1820 check_func_headers windows.h GetProcessTimes
1822 check_header conio.h
1823 check_header dlfcn.h
1824 check_header malloc.h
1826 check_header sys/mman.h
1827 check_header sys/resource.h
1828 check_header sys/select.h
1829 check_header termios.h
1830 check_header X11/extensions/XvMClib.h
1832 if ! enabled_any memalign memalign_hack && enabled need_memalign ; then
1833 die "Error, no memalign() but SSE enabled, disable it or use --enable-memalign-hack."
1836 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
1837 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
1839 # check for some common methods of building with pthread support
1840 # do this before the optional library checks as some of them require pthreads
1841 if enabled pthreads; then
1842 if check_func pthread_create; then
1844 elif check_func pthread_create -pthread; then
1846 add_extralibs -pthread
1847 elif check_func pthread_create -pthreads; then
1848 add_cflags -pthreads
1849 add_extralibs -pthreads
1850 elif check_func pthread_create -lpthreadGC2; then
1851 add_extralibs -lpthreadGC2
1852 elif ! check_lib pthread.h pthread_create -lpthread; then
1853 die "ERROR: can't find pthreads library"
1857 for thread in $THREADS_LIST; do
1858 if enabled $thread; then
1859 test -n "$thread_type" &&
1860 die "ERROR: Only one thread type must be selected." ||
1861 thread_type="$thread"
1865 check_lib math.h sin -lm
1867 # test for C99 functions in math.h
1868 for func in llrint lrint lrintf round roundf; do
1869 check_exec <<EOF && enable $func || disable $func
1871 int main(void) { return ($func(3.999f) > 0)?0:1; }
1875 # these are off by default, so fail if requested and not available
1876 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
1877 enabled libamr_nb && require libamrnb amrnb/interf_dec.h Speech_Decode_Frame_init -lamrnb -lm
1878 enabled libamr_wb && require libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
1879 enabled libdirac && add_cflags $(pkg-config --cflags dirac) &&
1880 require libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
1881 require libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
1882 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
1883 enabled libfaad && require2 libfaad faad.h faacDecOpen -lfaad
1884 enabled libgsm && require libgsm gsm.h gsm_create -lgsm
1885 enabled libmp3lame && require libmp3lame lame/lame.h lame_init -lmp3lame -lm
1886 enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
1887 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
1888 require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
1889 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
1890 enabled libtheora && require libtheora theora/theora.h theora_info_init -ltheora -logg
1891 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
1892 enabled libx264 && require libx264 x264.h x264_encoder_open -lx264 -lm &&
1893 { check_cpp_condition x264.h "X264_BUILD >= 65" ||
1894 die "ERROR: libx264 version must be >= 0.65."; }
1895 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
1896 enabled mlib && require mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
1899 if enabled libdc1394; then
1900 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
1901 enable libdc1394_2; } ||
1902 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
1903 enable libdc1394_1; } ||
1904 die "ERROR: No version of libdc1394 found "
1909 for restrict_keyword in restrict __restrict__ __restrict; do
1910 check_cc <<EOF && _restrict=$restrict_keyword && break
1911 void foo(char * $restrict_keyword p);
1915 test "$vhook" = "default" && vhook="$dlopen"
1917 if test "$target_os" = cygwin -o "$target_os" = mingw32 && enabled_all static vhook ; then
1920 echo "At the moment vhooks don't work on Cygwin or MinGW static builds."
1921 echo "Patches welcome."
1925 if enabled vhook; then
1926 check_ldflags -rdynamic
1927 check_ldflags -export-dynamic
1930 check_foo_config imlib2 imlib2 Imlib2.h imlib_load_font
1931 check_foo_config freetype2 freetype ft2build.h FT_Init_FreeType
1933 ##########################################
1938 SDL_CONFIG="${cross_prefix}sdl-config"
1939 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
1940 sdl_cflags=`"${SDL_CONFIG}" --cflags`
1941 temp_cflags $sdl_cflags
1942 temp_extralibs `"${SDL_CONFIG}" --libs`
1943 if check_lib2 SDL.h SDL_Init; then
1944 _sdlversion=`"${SDL_CONFIG}" --version | sed 's/[^0-9]//g'`
1945 if test "$_sdlversion" -lt 121 ; then
1949 check_cc $sdl_cflags <<EOF && enable sdl_video_size
1951 int main(int argc, char **argv){
1952 const SDL_VideoInfo *vi = SDL_GetVideoInfo();
1953 int w = vi->current_w;
1962 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
1964 ##########################################
1967 if enabled network; then
1968 check_type "sys/types.h sys/socket.h" socklen_t
1969 # Prefer arpa/inet.h over winsock2
1970 if check_header arpa/inet.h ; then
1971 check_func closesocket
1972 elif check_header winsock2.h ; then
1973 network_extralibs="-lws2_32"
1974 check_type ws2tcpip.h socklen_t
1975 check_func_headers winsock2.h closesocket
1979 ##########################################
1982 enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
1983 #include <sys/types.h>
1984 #include <sys/socket.h>
1985 #include <netinet/in.h>
1988 struct sockaddr_storage saddr;
1989 struct ipv6_mreq mreq6;
1990 getaddrinfo(0,0,0,0);
1991 getnameinfo(0,0,0,0,0,0,0);
1992 IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
1996 check_header linux/videodev.h
1997 check_header linux/videodev2.h
1998 check_header sys/videoio.h
2000 check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2002 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2003 { check_header dev/bktr/ioctl_meteor.h &&
2004 check_header dev/bktr/ioctl_bt848.h; } ||
2005 { check_header machine/ioctl_meteor.h &&
2006 check_header machine/ioctl_bt848.h; } ||
2007 { check_header dev/video/meteor/ioctl_meteor.h &&
2008 check_header dev/video/bktr/ioctl_bt848.h; } ||
2009 check_header dev/ic/bt8xx.h
2011 check_header sys/soundcard.h
2012 check_header soundcard.h
2014 # deal with the X11 frame grabber
2016 check_header X11/Xlib.h &&
2017 check_header X11/extensions/XShm.h &&
2018 check_func XOpenDisplay -lX11 &&
2019 check_func XShmCreateImage -lX11 -lXext
2021 enabled debug && add_cflags -g"$debuglevel"
2023 # add some useful compiler flags if supported
2024 check_cflags -Wdeclaration-after-statement
2026 check_cflags -Wno-switch
2027 check_cflags -Wdisabled-optimization
2028 check_cflags -Wpointer-arith
2029 check_cflags -Wredundant-decls
2030 check_cflags -Wno-pointer-sign
2031 check_cflags -Wcast-qual
2032 check_cflags -Wwrite-strings
2033 check_cflags -Wtype-limits
2034 enabled extra_warnings && check_cflags -Winline
2036 # add some linker flags
2037 check_ldflags -Wl,--warn-common
2038 check_ldflags -Wl,--as-needed
2039 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2040 check_ldflags -Wl,-Bsymbolic
2042 if enabled small; then
2043 check_cflags -Os # not all compilers support -Os
2044 optimizations="small"
2045 elif enabled optimizations; then
2046 if $cc -v 2>&1 | grep -q xlc; then
2053 check_cflags -fno-math-errno
2054 check_cflags -fno-signed-zeros
2056 # add some flags for Intel C Compiler
2057 if $cc --version 2> /dev/null | grep -q Intel; then
2058 # Just warnings, no remarks
2060 # -wd: Disable following warnings
2061 # 144, 167, 556: -Wno-pointer-sign
2062 # 10006: ignoring unknown option -fno-signed-zeros
2063 # 10156: ignoring option '-W'; no argument required
2064 check_cflags -wd144,167,556,10006,10156
2065 # 11030: Warning unknown option --as-needed
2066 # 10156: ignoring option '-export'; no argument required
2067 check_ldflags -wd10156,11030
2068 # Allow to compile with optimizations
2069 check_ldflags -march=$cpu
2072 # PIC flags for shared library objects where they are needed
2073 if enabled shared; then
2074 # LIBOBJFLAGS may have already been set in the OS configuration
2075 if test -z "$LIBOBJFLAGS" ; then
2077 x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2082 if enabled gprof; then
2089 # Find out if the .align argument is a power of two or not.
2090 check_asm asmalign_pot '".align 3"'
2092 enabled_any $DECODER_LIST && enable decoders
2093 enabled_any $ENCODER_LIST && enable encoders
2094 enabled_any $BSF_LIST && enable bsfs
2095 enabled_any $DEMUXER_LIST && enable demuxers
2096 enabled_any $MUXER_LIST && enable muxers
2097 enabled_any $FILTER_LIST && enable filters
2098 enabled_any $INDEV_LIST && enable demuxers
2099 enabled_any $OUTDEV_LIST && enable muxers
2100 enabled_any $PROTOCOL_LIST && enable protocols
2102 enabled_any $THREADS_LIST && enable threads
2104 check_deps $CONFIG_LIST \
2118 echo "install prefix $prefix"
2119 echo "source path $source_path"
2120 echo "C compiler $cc"
2121 echo ".align is power-of-two $asmalign_pot"
2122 echo "ARCH $arch ($cpu)"
2123 if test "$build_suffix" != ""; then
2124 echo "build suffix $build_suffix"
2126 if test "$extra_version" != ""; then
2127 echo "version string suffix $extra_version"
2129 echo "big-endian ${bigendian-no}"
2130 if test $arch = "x86_32" -o $arch = "x86_64"; then
2131 echo "yasm ${yasm-no}"
2132 echo "MMX enabled ${mmx-no}"
2133 echo "CMOV enabled ${cmov-no}"
2134 echo "CMOV is fast ${fast_cmov-no}"
2135 echo "EBX available ${ebx_available-no}"
2136 echo "EBP available ${ebp_available-no}"
2138 if test $arch = "arm"; then
2139 echo "ARMv5TE enabled ${armv5te-no}"
2140 echo "ARMv6 enabled ${armv6-no}"
2141 echo "ARMv6T2 enabled ${armv6t2-no}"
2142 echo "ARM VFP enabled ${armvfp-no}"
2143 echo "IWMMXT enabled ${iwmmxt-no}"
2144 echo "NEON enabled ${neon-no}"
2146 if test $arch = "mips"; then
2147 echo "MMI enabled ${mmi-no}"
2149 if test $arch = "ppc"; then
2150 echo "AltiVec enabled ${altivec-no}"
2151 echo "dcbzl available ${dcbzl-no}"
2153 echo "gprof enabled ${gprof-no}"
2154 echo "debug symbols ${debug-no}"
2155 echo "strip symbols ${stripping-no}"
2156 echo "optimizations ${optimizations-no}"
2157 echo "static ${static-no}"
2158 echo "shared ${shared-no}"
2159 echo "postprocessing support ${postproc-no}"
2160 echo "software scaler enabled ${swscale-no}"
2161 echo "new filter support ${avfilter-no}"
2162 echo "filters using lavformat ${avfilter_lavf-no}"
2163 echo "video hooking ${vhook-no}"
2164 if enabled vhook; then
2165 echo "Imlib2 support ${imlib2-no}"
2166 echo "FreeType support ${freetype2-no}"
2168 echo "network support ${network-no}"
2169 if enabled network; then
2170 echo "IPv6 support ${ipv6-no}"
2172 echo "threading support ${thread_type-no}"
2173 echo "SDL support ${sdl-no}"
2174 if enabled sdl_too_old; then
2175 echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2177 echo "Sun medialib support ${mlib-no}"
2178 echo "AVISynth enabled ${avisynth-no}"
2179 echo "libamr-nb support ${libamr_nb-no}"
2180 echo "libamr-wb support ${libamr_wb-no}"
2181 echo "libdc1394 support ${libdc1394-no}"
2182 echo "libdirac enabled ${libdirac-no}"
2183 echo "libfaac enabled ${libfaac-no}"
2184 echo "libfaad enabled ${libfaad-no}"
2185 echo "libfaad dlopened ${libfaadbin-no}"
2186 echo "libgsm enabled ${libgsm-no}"
2187 echo "libmp3lame enabled ${libmp3lame-no}"
2188 echo "libnut enabled ${libnut-no}"
2189 echo "libschroedinger enabled ${libschroedinger-no}"
2190 echo "libspeex enabled ${libspeex-no}"
2191 echo "libtheora enabled ${libtheora-no}"
2192 echo "libvorbis enabled ${libvorbis-no}"
2193 echo "libx264 enabled ${libx264-no}"
2194 echo "libxvid enabled ${libxvid-no}"
2195 echo "zlib enabled ${zlib-no}"
2196 echo "bzlib enabled ${bzlib-no}"
2199 for type in decoder encoder parser demuxer muxer protocol filter bsf indev outdev; do
2200 echo "Enabled ${type}s:"
2201 eval list=\$$(toupper $type)_LIST
2202 for part in $list; do
2203 enabled $part && echo ${part%_*}
2204 done | sort | pr -3 -t
2209 if enabled nonfree; then
2210 license="unredistributable"
2211 elif enabled gpl; then
2215 echo "License: $license"
2217 echo "Creating config.mak and config.h..."
2219 echo "# Automatically generated by configure - do not modify!" > config.mak
2220 echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2221 echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2222 echo "#define FFMPEG_CONFIG_H" >> $TMPH
2223 echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH
2225 echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2226 echo "prefix=$prefix" >> config.mak
2227 echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2228 echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2229 echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2230 echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2231 echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2232 echo "CC=$cc" >> config.mak
2233 echo "YASM=$yasmexe" >> config.mak
2234 echo "AR=$ar" >> config.mak
2235 echo "RANLIB=$ranlib" >> config.mak
2236 echo "LN_S=$ln_s" >> config.mak
2237 enabled stripping &&
2238 echo "STRIP=$strip" >> config.mak ||
2239 echo "STRIP=echo ignoring strip" >> config.mak
2241 echo "OPTFLAGS=$CFLAGS" >> config.mak
2242 echo "VHOOKCFLAGS=$VHOOKCFLAGS" >> config.mak
2243 echo "LDFLAGS=$LDFLAGS" >> config.mak
2244 echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2245 echo "SHFLAGS=$SHFLAGS" >> config.mak
2246 echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2247 echo "VHOOKSHFLAGS=$VHOOKSHFLAGS" >> config.mak
2248 echo "VHOOKLIBS=$VHOOKLIBS" >> config.mak
2249 echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2250 echo "BUILD_STATIC=$static" >> config.mak
2251 echo "BUILDSUF=$build_suffix" >> config.mak
2252 echo "FULLNAME=$FULLNAME" >> config.mak
2253 echo "LIBPREF=$LIBPREF" >> config.mak
2254 echo "LIBSUF=$LIBSUF" >> config.mak
2255 echo "LIBNAME=$LIBNAME" >> config.mak
2256 echo "SLIBPREF=$SLIBPREF" >> config.mak
2257 echo "SLIBSUF=$SLIBSUF" >> config.mak
2258 echo "EXESUF=$EXESUF" >> config.mak
2259 echo "EXTRA_VERSION=$extra_version" >> config.mak
2260 echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2261 echo "HOSTCC=$host_cc" >> config.mak
2262 echo "HOSTCFLAGS=$host_cflags" >> config.mak
2263 echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2264 echo "HOSTLIBS=$host_libs" >> config.mak
2265 echo "TARGET_EXEC=$target_exec" >> config.mak
2266 echo "TARGET_PATH=$target_path" >> config.mak
2268 if enabled bigendian; then
2269 echo "WORDS_BIGENDIAN=yes" >> config.mak
2270 echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2273 if enabled sdl; then
2274 echo "SDL_LIBS=`"${SDL_CONFIG}" --libs`" >> config.mak
2275 echo "SDL_CFLAGS=`"${SDL_CONFIG}" --cflags`" >> config.mak
2277 if enabled texi2html; then
2278 echo "BUILD_DOC=yes" >> config.mak
2283 file=$source_path/$2
2284 eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2285 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2286 lcname=$(tolower $name)
2287 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2288 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2291 get_version LIBSWSCALE libswscale/swscale.h
2292 get_version LIBPOSTPROC libpostproc/postprocess.h
2293 get_version LIBAVCODEC libavcodec/avcodec.h
2294 get_version LIBAVDEVICE libavdevice/avdevice.h
2295 get_version LIBAVFORMAT libavformat/avformat.h
2296 get_version LIBAVUTIL libavutil/avutil.h
2297 get_version LIBAVFILTER libavfilter/avfilter.h
2299 if enabled shared; then
2300 echo "BUILD_SHARED=yes" >> config.mak
2301 echo "PIC=-fPIC -DPIC" >> config.mak
2302 echo "LIBTARGET=${LIBTARGET}" >> config.mak
2303 echo "SLIBNAME=${SLIBNAME}" >> config.mak
2304 echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2305 echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2306 echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2307 echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2308 echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2309 echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2311 echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2312 echo "EXTRALIBS=$extralibs" >> config.mak
2314 print_config ARCH_ $TMPH config.mak $ARCH_LIST
2315 print_config HAVE_ $TMPH config.mak $HAVE_LIST
2316 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST \
2329 echo "#define restrict $_restrict" >> $TMPH
2331 if enabled small; then
2332 echo "#define av_always_inline" >> $TMPH
2335 echo "SRC_PATH=\"$source_path\"" >> config.mak
2336 echo "SRC_PATH_BARE=$source_path" >> config.mak
2337 echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2339 # Apparently it's not possible to portably echo a backslash.
2340 enabled asmalign_pot &&
2341 printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2342 printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2344 echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2346 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2348 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2349 cmp -s $TMPH config.h &&
2350 echo "config.h is unchanged" ||
2351 mv -f $TMPH config.h
2353 rm -f $TMPC $TMPE $TMPH $TMPO $TMPS $TMPSH
2355 # build tree in object directory if source path is different from current one
2356 if enabled source_path_used; then
2383 libavcodec/Makefile \
2384 libavdevice/Makefile \
2385 libavfilter/Makefile \
2386 libavformat/Makefile \
2387 libavutil/Makefile \
2388 libpostproc/Makefile \
2389 libswscale/Makefile \
2391 for dir in $DIRS ; do
2394 for f in $FILES ; do
2395 $ln_s "$source_path/$f" $f
2400 # build pkg-config files
2402 pkgconfig_generate(){
2404 shortname=${name#lib}${build_suffix}
2409 cat <<EOF > $name/$name.pc
2411 exec_prefix=\${prefix}
2416 Description: $comment
2418 Requires: $(disabled shared && echo $requires)
2419 Requires.private: $(enabled shared && echo $requires)
2421 Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2422 Libs.private: $(enabled shared && echo $libs)
2423 Cflags: -I\${includedir}
2425 cat <<EOF > $name/$name-uninstalled.pc
2428 libdir=\${pcfiledir}
2429 includedir=${source_path}
2432 Description: $comment
2436 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2437 Cflags: -I\${includedir}
2441 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2442 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2443 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2444 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2446 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2448 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2449 if enabled swscale; then
2450 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
2452 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavcodec = $LIBAVCODEC_VERSION"
2453 apply libswscale/libswscale.pc sed s/^Libs:.*$/Libs:/