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."
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --fatal-warnings fail if any configure warning is generated
82 --prefix=PREFIX install in PREFIX [$prefix]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
91 --enable-gpl allow use of GPL code, the resulting libs
92 and binaries will be under GPL [no]
93 --enable-version3 upgrade (L)GPL to version 3 [no]
94 --enable-nonfree allow use of nonfree code, the resulting libs
95 and binaries will be unredistributable [no]
97 Configuration options:
98 --disable-static do not build static libraries [no]
99 --enable-shared build shared libraries [no]
100 --enable-small optimize for size instead of speed
101 --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102 --enable-gray enable full grayscale support (slower color)
103 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-programs do not build command line programs
107 --disable-ffmpeg disable ffmpeg build
108 --disable-ffplay disable ffplay build
109 --disable-ffprobe disable ffprobe build
110 --disable-ffserver disable ffserver build
112 Documentation options:
113 --disable-doc do not build documentation
114 --disable-htmlpages do not build HTML documentation pages
115 --disable-manpages do not build man documentation pages
116 --disable-podpages do not build POD documentation pages
117 --disable-txtpages do not build text documentation pages
120 --disable-avdevice disable libavdevice build
121 --disable-avcodec disable libavcodec build
122 --disable-avformat disable libavformat build
123 --disable-avutil disable libavutil build
124 --disable-swresample disable libswresample build
125 --disable-swscale disable libswscale build
126 --disable-postproc disable libpostproc build
127 --disable-avfilter disable libavfilter build
128 --enable-avresample enable libavresample build [no]
129 --disable-pthreads disable pthreads [auto]
130 --disable-w32threads disable Win32 threads [auto]
131 --disable-os2threads disable OS/2 threads [auto]
132 --enable-x11grab enable X11 grabbing [no]
133 --disable-network disable network support [no]
134 --disable-dct disable DCT code
135 --disable-dwt disable DWT code
136 --disable-lsp disable LSP code
137 --disable-lzo disable LZO decoder code
138 --disable-mdct disable MDCT code
139 --disable-rdft disable RDFT code
140 --disable-fft disable FFT code
141 --enable-dxva2 enable DXVA2 code
142 --enable-vaapi enable VAAPI code [autodetect]
143 --enable-vda enable VDA code [autodetect]
144 --enable-vdpau enable VDPAU code [autodetect]
146 Individual component options:
147 --disable-everything disable all components listed below
148 --disable-encoder=NAME disable encoder NAME
149 --enable-encoder=NAME enable encoder NAME
150 --disable-encoders disable all encoders
151 --disable-decoder=NAME disable decoder NAME
152 --enable-decoder=NAME enable decoder NAME
153 --disable-decoders disable all decoders
154 --disable-hwaccel=NAME disable hwaccel NAME
155 --enable-hwaccel=NAME enable hwaccel NAME
156 --disable-hwaccels disable all hwaccels
157 --disable-muxer=NAME disable muxer NAME
158 --enable-muxer=NAME enable muxer NAME
159 --disable-muxers disable all muxers
160 --disable-demuxer=NAME disable demuxer NAME
161 --enable-demuxer=NAME enable demuxer NAME
162 --disable-demuxers disable all demuxers
163 --enable-parser=NAME enable parser NAME
164 --disable-parser=NAME disable parser NAME
165 --disable-parsers disable all parsers
166 --enable-bsf=NAME enable bitstream filter NAME
167 --disable-bsf=NAME disable bitstream filter NAME
168 --disable-bsfs disable all bitstream filters
169 --enable-protocol=NAME enable protocol NAME
170 --disable-protocol=NAME disable protocol NAME
171 --disable-protocols disable all protocols
172 --enable-indev=NAME enable input device NAME
173 --disable-indev=NAME disable input device NAME
174 --disable-indevs disable input devices
175 --enable-outdev=NAME enable output device NAME
176 --disable-outdev=NAME disable output device NAME
177 --disable-outdevs disable output devices
178 --disable-devices disable all devices
179 --enable-filter=NAME enable filter NAME
180 --disable-filter=NAME disable filter NAME
181 --disable-filters disable all filters
183 External library support:
184 --enable-avisynth enable reading of AVISynth script files [no]
185 --enable-bzlib enable bzlib [autodetect]
186 --enable-fontconfig enable fontconfig
187 --enable-frei0r enable frei0r video filtering
188 --enable-gnutls enable gnutls [no]
189 --enable-libaacplus enable AAC+ encoding via libaacplus [no]
190 --enable-libass enable libass subtitles rendering [no]
191 --enable-libbluray enable BluRay reading using libbluray [no]
192 --enable-libcaca enable textual display using libcaca
193 --enable-libcelt enable CELT decoding via libcelt [no]
194 --enable-libcdio enable audio CD grabbing with libcdio
195 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
197 --enable-libfaac enable AAC encoding via libfaac [no]
198 --enable-libfdk-aac enable AAC encoding via libfdk-aac [no]
199 --enable-libflite enable flite (voice synthesis) support via libflite [no]
200 --enable-libfreetype enable libfreetype [no]
201 --enable-libgsm enable GSM de/encoding via libgsm [no]
202 --enable-libiec61883 enable iec61883 via libiec61883 [no]
203 --enable-libilbc enable iLBC de/encoding via libilbc [no]
204 --enable-libmodplug enable ModPlug via libmodplug [no]
205 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
206 --enable-libnut enable NUT (de)muxing via libnut,
207 native (de)muxer exists [no]
208 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
209 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
210 --enable-libopencv enable video filtering via libopencv [no]
211 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
212 --enable-libopus enable Opus decoding via libopus [no]
213 --enable-libpulse enable Pulseaudio input via libpulse [no]
214 --enable-librtmp enable RTMP[E] support via librtmp [no]
215 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
216 --enable-libspeex enable Speex de/encoding via libspeex [no]
217 --enable-libstagefright-h264 enable H.264 decoding via libstagefright [no]
218 --enable-libtheora enable Theora encoding via libtheora [no]
219 --enable-libtwolame enable MP2 encoding via libtwolame [no]
220 --enable-libutvideo enable Ut Video encoding and decoding via libutvideo [no]
221 --enable-libv4l2 enable libv4l2/v4l-utils [no]
222 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
223 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
224 --enable-libvorbis enable Vorbis en/decoding via libvorbis,
225 native implementation exists [no]
226 --enable-libvpx enable VP8 de/encoding via libvpx [no]
227 --enable-libx264 enable H.264 encoding via x264 [no]
228 --enable-libxavs enable AVS encoding via xavs [no]
229 --enable-libxvid enable Xvid encoding via xvidcore,
230 native MPEG-4/Xvid encoder exists [no]
231 --enable-openal enable OpenAL 1.1 capture support [no]
232 --enable-openssl enable openssl [no]
233 --enable-zlib enable zlib [autodetect]
235 Advanced options (experts only):
236 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
237 --enable-cross-compile assume a cross-compiler is used
238 --sysroot=PATH root of cross-build tree
239 --sysinclude=PATH location of cross-build system headers
240 --target-os=OS compiler targets OS [$target_os]
241 --target-exec=CMD command to run executables on target
242 --target-path=DIR path to view of build directory on target
243 --toolchain=NAME set tool defaults according to NAME
244 --nm=NM use nm tool NM [$nm_default]
245 --ar=AR use archive tool AR [$ar_default]
246 --as=AS use assembler AS [$as_default]
247 --yasmexe=EXE use yasm-compatible assembler EXE [$yasmexe_default]
248 --cc=CC use C compiler CC [$cc_default]
249 --cxx=CXX use C compiler CXX [$cxx_default]
250 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
251 --ld=LD use linker LD [$ld_default]
252 --host-cc=HOSTCC use host C compiler HOSTCC
253 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
254 --host-ld=HOSTLD use host linker HOSTLD
255 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
256 --host-libs=HLIBS use libs HLIBS when linking for host
257 --host-os=OS compiler host OS [$target_os]
258 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
259 --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
260 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
261 --extra-libs=ELIBS add ELIBS [$ELIBS]
262 --extra-version=STRING version string suffix []
263 --optflags=OPTFLAGS override optimization-related compiler flags
264 --build-suffix=SUFFIX library name suffix []
265 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
266 --progs-suffix=SUFFIX program name suffix []
267 --arch=ARCH select architecture [$arch]
268 --cpu=CPU select the minimum required CPU (affects
269 instruction selection, may crash on older CPUs)
270 --enable-pic build position-independent code
271 --enable-sram allow use of on-chip SRAM
272 --enable-thumb compile for Thumb instruction set
273 --disable-symver disable symbol versioning
274 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
275 --disable-safe-bitstream-reader
276 disable buffer boundary checking in bitreaders
277 (faster, but may crash)
278 --enable-memalign-hack emulate memalign, interferes with memory debuggers
279 --enable-lto use link-time optimization
281 Optimization options (experts only):
282 --disable-asm disable all assembler optimizations
283 --disable-altivec disable AltiVec optimizations
284 --disable-amd3dnow disable 3DNow! optimizations
285 --disable-amd3dnowext disable 3DNow! extended optimizations
286 --disable-mmx disable MMX optimizations
287 --disable-mmxext disable MMXEXT optimizations
288 --disable-sse disable SSE optimizations
289 --disable-sse2 disable SSE2 optimizations
290 --disable-sse3 disable SSE3 optimizations
291 --disable-ssse3 disable SSSE3 optimizations
292 --disable-sse4 disable SSE4 optimizations
293 --disable-sse42 disable SSE4.2 optimizations
294 --disable-avx disable AVX optimizations
295 --disable-fma4 disable FMA4 optimizations
296 --disable-armv5te disable armv5te optimizations
297 --disable-armv6 disable armv6 optimizations
298 --disable-armv6t2 disable armv6t2 optimizations
299 --disable-armvfp disable ARM VFP optimizations
300 --disable-neon disable NEON optimizations
301 --disable-vis disable VIS optimizations
302 --disable-inline-asm disable use of inline assembler
303 --disable-yasm disable use of yasm assembler
304 --disable-mips32r2 disable MIPS32R2 optimizations
305 --disable-mipsdspr1 disable MIPS DSP ASE R1 optimizations
306 --disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations
307 --disable-mipsfpu disable floating point MIPS optimizations
308 --disable-fast-unaligned consider unaligned accesses slow
309 --postproc-version=V build libpostproc version V.
310 Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
312 Developer options (useful when working on FFmpeg itself):
313 --enable-coverage build with test coverage instrumentation
314 --disable-debug disable debugging symbols
315 --enable-debug=LEVEL set the debug level [$debuglevel]
316 --disable-optimizations disable compiler optimizations
317 --enable-extra-warnings enable more compiler warnings
318 --disable-stripping disable stripping of executables and shared libraries
319 --assert-level=level 0(default), 1 or 2, amount of assertion testing,
320 2 causes a slowdown at runtime.
321 --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
322 --valgrind=VALGRIND run "make fate" tests through valgrind to detect memory
323 leaks and errors, using the specified valgrind binary.
324 Cannot be combined with --target-exec
325 --enable-ftrapv Trap arithmetic overflows
326 --samples=PATH location of test samples for FATE, if not set use
327 \$FATE_SAMPLES at make invocation time.
328 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
329 should be used only for debugging purposes)
330 --enable-random randomly enable/disable components
332 --enable-random=LIST randomly enable/disable specific components or
333 --disable-random=LIST component groups. LIST is a comma-separated list
334 of NAME[:PROB] entries where NAME is a component
335 (group) and PROB the probability associated with
337 --random-seed=VALUE seed value for --enable/disable-random
339 NOTE: Object files are built at the place where configure is launched.
347 echo "$@" >> $logfile
352 pr -n -t $1 >> $logfile
363 WARNINGS="${WARNINGS}WARNING: $*\n"
370 If you think configure made a mistake, make sure you are using the latest
371 version from Git. If the latest version fails, report the problem to the
372 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
374 if disabled logging; then
376 Rerun configure with logging enabled (do not use --disable-logging), and
377 include the log this produces with your report.
381 Include the log file "$logfile" produced by configure as this will help
388 # Avoid locale weirdness, besides we really just want to translate ASCII.
390 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
394 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
398 echo "$*" | sed 's/["\\]/\\\0/g'
402 v=$(echo "$1" | sed "s/'/'\\\\''/g")
403 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
408 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
415 eval "case $v in $pat) echo $v ;; esac"
423 eval "case $v in $pat) ;; *) echo $v ;; esac"
430 for v; do eval $m; done
436 for v; do echo ${v}${suffix}; done
451 eval : \${$var:=$value}
458 eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
462 eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
467 eval level=\${${var}_level:=0}
468 eval ${var}_${level}="\$$var"
469 eval ${var}_level=$(($level+1))
475 eval level=\${${var}_level:-0}
476 test $level = 0 && continue
477 eval level=$(($level-1))
478 eval $var="\${${var}_${level}}"
479 eval ${var}_level=$level
480 eval unset ${var}_${level}
502 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
508 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
514 enabled $var && continue
515 eval sel="\$${var}_select"
516 eval sgs="\$${var}_suggest"
520 enable_deep_weak $sgs
536 test "${1#!}" = "$1" && op== || op=!=
537 eval test "x\$${1#!}" $op "xyes"
541 test "${1#!}" = "$1" && op== || op=!=
542 eval test "x\$${1#!}" $op "xno"
547 enabled $opt || return 1
553 disabled $opt || return 1
559 enabled $opt && return 0
565 disabled $opt && return 0
572 eval : \${$opt:=\$${opt}_default}
580 [ $var = $value ] && return 0
588 enabled ${cfg}_checking && die "Circular dependency for $cfg."
589 disabled ${cfg}_checking && continue
590 enable ${cfg}_checking
592 eval dep_all="\$${cfg}_deps"
593 eval dep_any="\$${cfg}_deps_any"
594 eval dep_sel="\$${cfg}_select"
595 eval dep_sgs="\$${cfg}_suggest"
596 eval dep_ifa="\$${cfg}_if"
597 eval dep_ifn="\$${cfg}_if_any"
599 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
600 check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
601 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
603 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
604 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
605 enabled_all $dep_all || disable $cfg
606 enabled_any $dep_any || disable $cfg
607 disabled_any $dep_sel && disable $cfg
609 if enabled $cfg; then
610 eval dep_extralibs="\$${cfg}_extralibs"
611 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
613 enable_deep_weak $dep_sgs
616 disable ${cfg}_checking
624 map 'eval echo "$v \${$v:-no}"' "$@" |
625 awk "BEGIN { split(\"$files\", files) }
627 c = \"$pfx\" toupper(\$1);
633 if (file ~ /\\.h\$/) {
634 printf(\"#define %s %d\\n\", c, v) >>file;
635 } else if (file ~ /\\.asm\$/) {
636 printf(\"%%define %s %d\\n\", c, v) >>file;
637 } else if (file ~ /\\.mak\$/) {
638 n = -v ? \"\" : \"!\";
639 printf(\"%s%s=yes\\n\", n, c) >>file;
649 enabled $v && printf "%s\n" ${v%$suf};
656 eval "$var=\"\$$var $*\""
662 eval "$var=\"$* \$$var\""
670 append CFLAGS $($cflags_filter "$@")
674 append CXXFLAGS $($cflags_filter "$@")
678 append ASFLAGS $($asflags_filter "$@")
682 append LDFLAGS $($ldflags_filter "$@")
686 prepend extralibs $($ldflags_filter "$@")
690 append host_cflags $($host_cflags_filter "$@")
694 append host_ldflags $($host_ldflags_filter "$@")
698 append compat_objs $1
700 map 'add_cppflags -D$v' "$@"
705 "$@" >> $logfile 2>&1
709 eval printf '%s\\n' $CC_O
713 eval printf '%s\\n' $CC_E
720 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
727 check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
734 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
738 eval printf '%s\\n' $AS_O
745 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPC
749 log check_inline_asm "$@"
754 check_as "$@" <<EOF && enable $name
755 void foo(void){ __asm__ volatile($code); }
764 check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
768 eval printf '%s\\n' $LD_O
775 flags=$(filter_out '-l*' $@)
776 libs=$(filter '-l*' $@)
777 check_$type $($cflags_filter $flags) || return
778 flags=$($ldflags_filter $flags)
779 libs=$($ldflags_filter $libs)
780 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
790 for hdr in $headers; do
791 echo "#include <$hdr>"
793 echo "int main(void) { $code; return 0; }"
794 } | check_$check "$@"
798 log check_cppflags "$@"
799 check_cc "$@" <<EOF && append CPPFLAGS "$@"
805 log check_cflags "$@"
806 set -- $($cflags_filter "$@")
807 check_cc "$@" <<EOF && append CFLAGS "$@"
813 log check_cxxflags "$@"
814 set -- $($cflags_filter "$@")
815 check_cxx "$@" <<EOF && append CXXFLAGS "$@"
821 log test_ldflags "$@"
822 check_ld "cc" "$@" <<EOF
823 int main(void){ return 0; }
828 log check_ldflags "$@"
829 test_ldflags "$@" && add_ldflags "$@"
833 log check_header "$@"
837 check_cpp "$@" <<EOF && enable_safe $header
848 check_ld "cc" "$@" <<EOF && enable $func
850 int main(void){ $func(); }
855 log check_mathfunc "$@"
859 test $narg = 2 && args="f, g" || args="f"
861 check_ld "cc" "$@" <<EOF && enable $func
863 float foo(float f, float g) { return $func($args); }
864 int main(void){ return (int) foo; }
868 check_func_headers(){
869 log check_func_headers "$@"
874 for hdr in $headers; do
875 echo "#include <$hdr>"
877 for func in $funcs; do
878 echo "long check_$func(void) { return (long) $func; }"
880 echo "int main(void) { return 0; }"
881 } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
884 check_class_headers_cpp(){
885 log check_class_headers_cpp "$@"
890 for hdr in $headers; do
891 echo "#include <$hdr>"
893 echo "int main(void) { "
895 for class in $classes; do
900 } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
903 check_cpp_condition(){
904 log check_cpp_condition "$@"
911 #error "unsatisfied condition: $condition"
921 check_header $header && check_func $func "$@" && add_extralibs "$@"
929 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
933 log check_lib_cpp "$@"
937 check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
941 log check_pkg_config "$@"
946 $pkg_config --exists $pkg 2>/dev/null || return
947 pkg_cflags=$($pkg_config --cflags $pkg)
948 pkg_libs=$($pkg_config --libs $pkg)
949 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
950 set_safe ${pkg}_cflags $pkg_cflags &&
951 set_safe ${pkg}_libs $pkg_libs
955 check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
961 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
962 # are safe but may not be available everywhere. Thus we use
963 # raise(SIGTERM) instead. The check is run in a subshell so we
964 # can redirect the "Terminated" message from the shell. SIGBUS
965 # is not defined by standard C so it is used conditionally.
967 (check_exec "$@") >> $logfile 2>&1 <<EOF
969 static void sighandler(int sig){
975 int (*func_ptr)(void) = func;
977 signal(SIGILL, sighandler);
978 signal(SIGFPE, sighandler);
979 signal(SIGSEGV, sighandler);
981 signal(SIGBUS, sighandler);
994 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1003 disable_safe "${struct}_${member}"
1004 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1005 enable_safe "${struct}_${member}"
1013 check_lib $header $func "$@" || die "ERROR: $name not found"
1021 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1029 check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1032 require_pkg_config(){
1034 check_pkg_config "$@" || die "ERROR: $pkg not found"
1035 add_cflags $(get_safe ${pkg}_cflags)
1036 add_extralibs $(get_safe ${pkg}_libs)
1040 eval printf '%s\\n' $HOSTCC_O
1044 log check_host_cc "$@"
1047 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1050 check_host_cflags(){
1051 log check_host_cflags "$@"
1052 set -- $($host_cflags_filter "$@")
1053 check_host_cc "$@" <<EOF && append host_cflags "$@"
1061 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1065 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1066 mkdir -p "$(dirname $2)"
1070 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1071 # system-dependent things.
1133 incompatible_fork_abi
1185 safe_bitstream_reader
1279 incompatible_fork_abi
1311 $(add_suffix _external $ARCH_EXT_LIST)
1312 $(add_suffix _inline $ARCH_EXT_LIST)
1335 dev_bktr_ioctl_bt848_h
1336 dev_bktr_ioctl_meteor_h
1338 dev_video_bktr_ioctl_bt848_h
1339 dev_video_meteor_ioctl_meteor_h
1355 GetProcessAffinityMask
1356 GetProcessMemoryInfo
1358 GetSystemTimeAsFileTime
1368 jack_port_get_latency_range
1378 machine_ioctl_bt848_h
1379 machine_ioctl_meteor_h
1400 SetConsoleTextAttribute
1409 struct_group_source_req
1410 struct_ip_mreq_source
1413 struct_rusage_ru_maxrss
1414 struct_sctp_event_subscribe
1416 struct_sockaddr_sa_len
1417 struct_sockaddr_storage
1418 struct_v4l2_frmivalenum_discrete
1443 # options emitted with CONFIG_ prefix but not available on command line
1541 # code dependency declarations
1543 # architecture extensions
1553 mips32r2_deps="mips"
1554 mipsdspr1_deps="mips"
1555 mipsdspr2_deps="mips"
1562 x86_64_suggest="cmov fast_cmov"
1565 amd3dnowext_deps="amd3dnow"
1577 mmx_external_deps="yasm"
1578 mmx_inline_deps="inline_asm"
1579 mmx_suggest="mmx_external mmx_inline"
1581 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1582 eval dep=\$${ext}_deps
1583 eval ${ext}_external_deps='"${dep}_external"'
1584 eval ${ext}_inline_deps='"${dep}_inline"'
1585 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1588 aligned_stack_if_any="ppc x86"
1589 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1590 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1591 fast_unaligned_if_any="armv6 ppc x86"
1593 inline_asm_deps="!tms470"
1594 need_memalign="altivec neon sse"
1596 symver_if_any="symver_asm_label symver_gnu_asm"
1604 mpegaudio_select="mpegaudiodsp"
1605 mpegaudiodsp_select="dct"
1606 mpegvideoenc_select="mpegvideo"
1608 # decoders / encoders / hardware accelerators
1609 aac_decoder_select="mdct sinewin"
1610 aac_encoder_select="mdct sinewin"
1611 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1612 ac3_decoder_select="mdct ac3dsp ac3_parser"
1613 ac3_encoder_select="mdct ac3dsp"
1614 ac3_fixed_encoder_select="mdct ac3dsp"
1615 alac_encoder_select="lpc"
1616 amrnb_decoder_select="lsp"
1617 amrwb_decoder_select="lsp"
1618 amv_encoder_select="aandcttables"
1619 atrac1_decoder_select="mdct sinewin"
1620 atrac3_decoder_select="mdct"
1621 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1622 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1623 cavs_decoder_select="golomb mpegvideo"
1624 comfortnoise_encoder_select="lpc"
1625 cook_decoder_select="mdct sinewin"
1626 cscd_decoder_select="lzo"
1627 cscd_decoder_suggest="zlib"
1628 dca_decoder_select="mdct"
1629 dirac_decoder_select="dwt golomb"
1630 dnxhd_encoder_select="aandcttables mpegvideoenc"
1631 dxa_decoder_select="zlib"
1632 eac3_decoder_select="ac3_decoder"
1633 eac3_encoder_select="ac3_encoder"
1634 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1635 eatgq_decoder_select="aandcttables"
1636 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1637 exr_decoder_select="zlib"
1638 ffv1_decoder_select="golomb rangecoder"
1639 ffv1_encoder_select="rangecoder"
1640 ffvhuff_encoder_select="huffman"
1641 flac_decoder_select="golomb"
1642 flac_encoder_select="golomb lpc"
1643 flashsv_decoder_select="zlib"
1644 flashsv_encoder_select="zlib"
1645 flashsv2_encoder_select="zlib"
1646 flashsv2_decoder_select="zlib"
1647 flv_decoder_select="h263_decoder"
1648 flv_encoder_select="h263_encoder"
1649 fraps_decoder_select="huffman"
1650 h261_decoder_select="error_resilience mpegvideo"
1651 h261_encoder_select="aandcttables mpegvideoenc"
1652 h263_decoder_select="error_resilience h263_parser mpegvideo"
1653 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1654 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1655 h263i_decoder_select="h263_decoder"
1656 h263p_encoder_select="h263_encoder"
1657 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1658 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1659 h264_dxva2_hwaccel_deps="dxva2api_h"
1660 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1661 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1662 h264_vda_decoder_select="vda h264_parser h264_decoder"
1663 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1664 h264_vda_hwaccel_select="vda h264_decoder"
1665 h264_vdpau_decoder_select="vdpau h264_decoder"
1666 huffyuv_encoder_select="huffman"
1667 iac_decoder_select="fft mdct sinewin"
1668 imc_decoder_select="fft mdct sinewin"
1669 jpegls_decoder_select="golomb"
1670 jpegls_encoder_select="golomb"
1671 ljpeg_encoder_select="aandcttables mpegvideoenc"
1672 loco_decoder_select="golomb"
1673 mdec_decoder_select="error_resilience mpegvideo"
1674 mjpeg_encoder_select="aandcttables mpegvideoenc"
1675 mlp_decoder_select="mlp_parser"
1676 mp1_decoder_select="mpegaudio"
1677 mp1float_decoder_select="mpegaudio"
1678 mp2_decoder_select="mpegaudio"
1679 mp2float_decoder_select="mpegaudio"
1680 mp3_decoder_select="mpegaudio"
1681 mp3adu_decoder_select="mpegaudio"
1682 mp3adufloat_decoder_select="mpegaudio"
1683 mp3float_decoder_select="mpegaudio"
1684 mp3on4_decoder_select="mpegaudio"
1685 mp3on4float_decoder_select="mpegaudio"
1686 mpc7_decoder_select="mpegaudiodsp"
1687 mpc8_decoder_select="mpegaudiodsp"
1688 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1689 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1690 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1691 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1692 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1693 mpeg1video_decoder_select="error_resilience mpegvideo"
1694 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1695 mpeg2_crystalhd_decoder_select="crystalhd"
1696 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1697 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1698 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1699 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1700 mpeg2video_decoder_select="error_resilience mpegvideo"
1701 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1702 mpeg4_crystalhd_decoder_select="crystalhd"
1703 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1704 mpeg4_encoder_select="h263_encoder"
1705 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1706 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1707 msmpeg4_crystalhd_decoder_select="crystalhd"
1708 msmpeg4v1_decoder_select="h263_decoder"
1709 msmpeg4v1_encoder_select="h263_encoder"
1710 msmpeg4v2_decoder_select="h263_decoder"
1711 msmpeg4v2_encoder_select="h263_encoder"
1712 msmpeg4v3_decoder_select="h263_decoder"
1713 msmpeg4v3_encoder_select="h263_encoder"
1714 mss2_decoder_select="vc1_decoder"
1715 nellymoser_decoder_select="mdct sinewin"
1716 nellymoser_encoder_select="mdct sinewin"
1717 nuv_decoder_select="lzo"
1718 png_decoder_select="zlib"
1719 png_encoder_select="zlib"
1720 qcelp_decoder_select="lsp"
1721 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1722 ra_144_encoder_select="lpc"
1723 ralf_decoder_select="golomb"
1724 rv10_decoder_select="h263_decoder"
1725 rv10_encoder_select="h263_encoder"
1726 rv20_decoder_select="h263_decoder"
1727 rv20_encoder_select="h263_encoder"
1728 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1729 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1730 shorten_decoder_select="golomb"
1731 sipr_decoder_select="lsp"
1732 snow_decoder_select="dwt rangecoder"
1733 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1734 sonic_decoder_select="golomb"
1735 sonic_encoder_select="golomb"
1736 sonic_ls_encoder_select="golomb"
1737 svq1_decoder_select="error_resilience mpegvideo"
1738 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1739 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1740 svq3_decoder_suggest="zlib"
1741 theora_decoder_select="vp3_decoder"
1742 tiff_decoder_suggest="zlib"
1743 tiff_encoder_suggest="zlib"
1744 truehd_decoder_select="mlp_parser"
1745 tscc_decoder_select="zlib"
1746 twinvq_decoder_select="mdct lsp sinewin"
1747 utvideo_encoder_select="huffman"
1748 vc1_crystalhd_decoder_select="crystalhd"
1749 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1750 vc1_dxva2_hwaccel_deps="dxva2api_h"
1751 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1752 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1753 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1754 vc1image_decoder_select="vc1_decoder"
1755 vorbis_decoder_select="mdct"
1756 vorbis_encoder_select="mdct"
1757 vp3_decoder_select="vp3dsp"
1758 vp5_decoder_select="vp3dsp"
1759 vp6_decoder_select="huffman vp3dsp"
1760 vp6a_decoder_select="vp6_decoder"
1761 vp6f_decoder_select="vp6_decoder"
1762 vp8_decoder_select="h264pred h264qpel"
1763 wmapro_decoder_select="mdct sinewin"
1764 wmav1_decoder_select="mdct sinewin"
1765 wmav1_encoder_select="mdct sinewin"
1766 wmav2_decoder_select="mdct sinewin"
1767 wmav2_encoder_select="mdct sinewin"
1768 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1769 wmv1_decoder_select="h263_decoder"
1770 wmv1_encoder_select="h263_encoder"
1771 wmv2_decoder_select="h263_decoder"
1772 wmv2_encoder_select="h263_encoder"
1773 wmv3_decoder_select="vc1_decoder"
1774 wmv3_crystalhd_decoder_select="crystalhd"
1775 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1776 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1777 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1778 wmv3image_decoder_select="wmv3_decoder"
1779 zerocodec_decoder_select="zlib"
1780 zlib_decoder_select="zlib"
1781 zlib_encoder_select="zlib"
1782 zmbv_decoder_select="zlib"
1783 zmbv_encoder_select="zlib"
1785 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1786 vaapi_deps="va_va_h"
1787 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1788 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1791 h264_parser_select="error_resilience golomb h264dsp h264pred mpegvideo"
1792 mpeg4video_parser_select="error_resilience mpegvideo"
1793 mpegvideo_parser_select="error_resilience mpegvideo"
1794 vc1_parser_select="error_resilience mpegvideo"
1796 # external libraries
1797 libaacplus_encoder_deps="libaacplus"
1798 libcelt_decoder_deps="libcelt"
1799 libfaac_encoder_deps="libfaac"
1800 libfdk_aac_encoder_deps="libfdk_aac"
1801 libgsm_decoder_deps="libgsm"
1802 libgsm_encoder_deps="libgsm"
1803 libgsm_ms_decoder_deps="libgsm"
1804 libgsm_ms_encoder_deps="libgsm"
1805 libilbc_decoder_deps="libilbc"
1806 libilbc_encoder_deps="libilbc"
1807 libmodplug_demuxer_deps="libmodplug"
1808 libmp3lame_encoder_deps="libmp3lame"
1809 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1810 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1811 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1812 libopenjpeg_decoder_deps="libopenjpeg"
1813 libopenjpeg_encoder_deps="libopenjpeg"
1814 libopus_decoder_deps="libopus"
1815 libopus_encoder_deps="libopus"
1816 libschroedinger_decoder_deps="libschroedinger"
1817 libschroedinger_encoder_deps="libschroedinger"
1818 libspeex_decoder_deps="libspeex"
1819 libspeex_encoder_deps="libspeex"
1820 libstagefright_h264_decoder_deps="libstagefright_h264"
1821 libtheora_encoder_deps="libtheora"
1822 libtwolame_encoder_deps="libtwolame"
1823 libvo_aacenc_encoder_deps="libvo_aacenc"
1824 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1825 libvorbis_decoder_deps="libvorbis"
1826 libvorbis_encoder_deps="libvorbis"
1827 libvpx_decoder_deps="libvpx"
1828 libvpx_encoder_deps="libvpx"
1829 libx264_encoder_deps="libx264"
1830 libx264rgb_encoder_deps="libx264"
1831 libxavs_encoder_deps="libxavs"
1832 libxvid_encoder_deps="libxvid"
1833 libutvideo_decoder_deps="libutvideo"
1834 libutvideo_encoder_deps="libutvideo"
1837 ac3_demuxer_select="ac3_parser"
1838 asf_stream_muxer_select="asf_muxer"
1839 avisynth_demuxer_deps="avisynth"
1840 dirac_demuxer_select="dirac_parser"
1841 dts_demuxer_select="dca_parser"
1842 dtshd_demuxer_select="dca_parser"
1843 eac3_demuxer_select="ac3_parser"
1844 f4v_muxer_select="mov_muxer"
1845 flac_demuxer_select="flac_parser"
1846 ipod_muxer_select="mov_muxer"
1847 ismv_muxer_select="mov_muxer"
1848 libnut_demuxer_deps="libnut"
1849 libnut_muxer_deps="libnut"
1850 matroska_audio_muxer_select="matroska_muxer"
1851 matroska_demuxer_suggest="bzlib lzo zlib"
1852 mov_demuxer_suggest="zlib"
1853 mp3_demuxer_select="mpegaudio_parser"
1854 mp4_muxer_select="mov_muxer"
1855 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1856 mpegtsraw_demuxer_select="mpegts_demuxer"
1857 mxf_d10_muxer_select="mxf_muxer"
1858 ogg_demuxer_select="golomb"
1859 psp_muxer_select="mov_muxer"
1860 rtp_demuxer_select="sdp_demuxer"
1861 rtp_muxer_select="mpegvideo"
1862 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1863 rtsp_demuxer_select="http_protocol rtpdec"
1864 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1865 sap_demuxer_select="sdp_demuxer"
1866 sap_muxer_select="rtp_muxer rtp_protocol"
1867 sdp_demuxer_select="rtpdec"
1868 smoothstreaming_muxer_select="ismv_muxer"
1869 spdif_muxer_select="aac_parser"
1870 tak_demuxer_select="tak_parser"
1871 tg2_muxer_select="mov_muxer"
1872 tgp_muxer_select="mov_muxer"
1873 vobsub_demuxer_select="mpegps_demuxer"
1874 w64_demuxer_deps="wav_demuxer"
1877 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1878 alsa_outdev_deps="alsa_asoundlib_h"
1879 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1880 caca_outdev_deps="libcaca"
1881 dshow_indev_deps="IBaseFilter"
1882 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1883 dv1394_indev_deps="dv1394 dv_demuxer"
1884 fbdev_indev_deps="linux_fb_h"
1885 iec61883_indev_deps="libiec61883"
1886 jack_indev_deps="jack_jack_h sem_timedwait"
1887 lavfi_indev_deps="avfilter"
1888 libcdio_indev_deps="libcdio"
1889 libdc1394_indev_deps="libdc1394"
1890 libv4l2_indev_deps="libv4l2"
1891 openal_indev_deps="openal"
1892 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1893 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1894 pulse_indev_deps="libpulse"
1895 sdl_outdev_deps="sdl"
1896 sndio_indev_deps="sndio_h"
1897 sndio_outdev_deps="sndio_h"
1898 v4l_indev_deps="linux_videodev_h"
1899 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1900 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1901 vfwcap_indev_extralibs="-lavicap32"
1902 x11grab_indev_deps="x11grab"
1905 bluray_protocol_deps="libbluray"
1906 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1907 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1908 ffrtmpcrypt_protocol_select="tcp_protocol"
1909 ffrtmphttp_protocol_deps="!librtmp_protocol"
1910 ffrtmphttp_protocol_select="http_protocol"
1911 gopher_protocol_deps="network"
1912 httpproxy_protocol_deps="network"
1913 httpproxy_protocol_select="tcp_protocol"
1914 http_protocol_deps="network"
1915 http_protocol_select="tcp_protocol"
1916 https_protocol_select="tls_protocol"
1917 librtmp_protocol_deps="librtmp"
1918 librtmpe_protocol_deps="librtmp"
1919 librtmps_protocol_deps="librtmp"
1920 librtmpt_protocol_deps="librtmp"
1921 librtmpte_protocol_deps="librtmp"
1922 mmsh_protocol_select="http_protocol"
1923 mmst_protocol_deps="network"
1924 rtmp_protocol_deps="!librtmp_protocol"
1925 rtmp_protocol_select="tcp_protocol"
1926 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1927 rtmps_protocol_deps="!librtmp_protocol"
1928 rtmps_protocol_select="tls_protocol"
1929 rtmpt_protocol_select="ffrtmphttp_protocol"
1930 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1931 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1932 rtp_protocol_select="udp_protocol"
1933 sctp_protocol_deps="network struct_sctp_event_subscribe"
1934 tcp_protocol_deps="network"
1935 tls_protocol_deps_any="openssl gnutls"
1936 tls_protocol_select="tcp_protocol"
1937 udp_protocol_deps="network"
1940 aconvert_filter_deps="swresample"
1941 amovie_filter_deps="avcodec avformat"
1942 aresample_filter_deps="swresample"
1943 ass_filter_deps="libass"
1944 asyncts_filter_deps="avresample"
1945 atempo_filter_deps="avcodec rdft"
1946 blackframe_filter_deps="gpl"
1947 boxblur_filter_deps="gpl"
1948 colormatrix_filter_deps="gpl"
1949 cropdetect_filter_deps="gpl"
1950 decimate_filter_deps="gpl avcodec"
1951 delogo_filter_deps="gpl"
1952 deshake_filter_deps="avcodec"
1953 drawtext_filter_deps="libfreetype"
1954 ebur128_filter_deps="gpl"
1955 flite_filter_deps="libflite"
1956 frei0r_filter_deps="frei0r dlopen"
1957 frei0r_filter_extralibs='$ldl'
1958 frei0r_src_filter_deps="frei0r dlopen"
1959 frei0r_src_filter_extralibs='$ldl'
1960 geq_filter_deps="gpl"
1961 hqdn3d_filter_deps="gpl"
1962 hue_filter_deps="gpl"
1963 movie_filter_deps="avcodec avformat"
1964 mp_filter_deps="gpl avcodec swscale postproc inline_asm"
1965 mptestsrc_filter_deps="gpl"
1966 negate_filter_deps="lut_filter"
1967 resample_filter_deps="avresample"
1968 ocv_filter_deps="libopencv"
1969 pan_filter_deps="swresample"
1970 removelogo_filter_deps="avcodec avformat swscale"
1971 scale_filter_deps="swscale"
1972 smartblur_filter_deps="gpl swscale"
1973 showspectrum_filter_deps="avcodec rdft"
1974 subtitles_filter_deps="avformat avcodec libass"
1975 super2xsai_filter_deps="gpl"
1976 tinterlace_filter_deps="gpl"
1977 yadif_filter_deps="gpl"
1978 pixfmts_super2xsai_test_deps="super2xsai_filter"
1979 tinterlace_merge_test_deps="tinterlace_filter"
1980 tinterlace_pad_test_deps="tinterlace_filter"
1983 avcodec_deps="avutil"
1984 avdevice_deps="avutil avcodec avformat"
1985 avfilter_deps="avutil"
1986 avformat_deps="avutil avcodec"
1987 avresample_deps="avutil"
1989 swscale_deps="avutil"
1992 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1993 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
1994 setpts_filter null_filter anull_filter ffabuffersink_filter"
1995 ffplay_deps="avcodec avformat swscale swresample sdl"
1996 ffplay_select="ffbuffersink_filter rdft crop_filter"
1997 ffprobe_deps="avcodec avformat"
1998 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1999 ffserver_extralibs='$ldl'
2002 podpages_deps="perl"
2003 manpages_deps="perl pod2man"
2004 htmlpages_deps="texi2html"
2005 txtpages_deps="makeinfo"
2006 doc_deps_any="manpages htmlpages podpages txtpages"
2008 # default parameters
2010 logfile="config.log"
2012 # installation paths
2013 prefix_default="/usr/local"
2014 bindir_default='${prefix}/bin'
2015 datadir_default='${prefix}/share/ffmpeg'
2016 incdir_default='${prefix}/include'
2017 libdir_default='${prefix}/lib'
2018 mandir_default='${prefix}/share/man'
2019 shlibdir_default="$libdir_default"
2020 postproc_version_default="current"
2026 host_cc_default="gcc"
2032 pkg_config_default=pkg-config
2034 strip_default="strip"
2035 yasmexe_default="yasm"
2040 arch_default=$(uname -m)
2044 target_os_default=$(tolower $(uname -s))
2045 host_os=$target_os_default
2047 # alternative libpostproc version
2050 ALT_PP_VER_MICRO=101
2051 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
2053 # configurable options
2054 enable $PROGRAM_LIST
2055 enable $DOCUMENT_LIST
2056 enable $(filter_out avresample $LIBRARY_LIST)
2064 enable optimizations
2065 enable runtime_cpudetect
2066 enable safe_bitstream_reader
2068 enable swscale_alpha
2071 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2072 FFSERVERLDFLAGS=-Wl,-E
2075 FULLNAME='$(NAME)$(BUILDSUF)'
2076 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2079 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2080 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2081 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2082 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2083 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2084 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2104 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2106 host_cflags_filter=echo
2107 host_ldflags_filter=echo
2109 target_path='$(CURDIR)'
2111 # since the object filename is not given with the -MM flag, the compiler
2112 # is only able to print the basename, and we must add the path ourselves
2113 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2117 if test -f configure; then
2120 source_path=$(cd $(dirname "$0"); pwd)
2121 echo "$source_path" | grep -q '[[:blank:]]' &&
2122 die "Out of tree builds are impossible with whitespace in source path."
2123 test -e "$source_path/config.h" &&
2124 die "Out of tree builds are impossible with config.h in source dir."
2131 FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2137 file=$source_path/$3
2138 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2141 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2142 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2143 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2144 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2145 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2146 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2147 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2148 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2149 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2150 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2151 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2167 for n in $COMPONENT_LIST; do
2168 v=$(toupper ${n%s})_LIST
2170 eval ${n}_if_any="\$$v"
2173 enable $ARCH_EXT_LIST
2176 echo "Unknown option \"$1\"."
2177 echo "See $0 --help for available options."
2184 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2196 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2197 echo "prob ${prob:-0.5}"
2205 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2206 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2212 --extra-ldflags=*) add_ldflags $optval
2214 --extra-libs=*) add_extralibs $optval
2216 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2218 --enable-debug=*) debuglevel="$optval"
2221 disable $PROGRAM_LIST
2223 --disable-everything)
2224 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2226 --enable-random|--disable-random)
2227 action=${opt%%-random}
2228 do_random ${action#--} $COMPONENT_LIST
2230 --enable-random=*|--disable-random=*)
2231 action=${opt%%-random=*}
2232 do_random ${action#--} $optval
2234 --enable-*=*|--disable-*=*)
2235 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2236 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2237 eval list=\$$(toupper $thing)_LIST
2238 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2239 list=$(filter "$name" $list)
2240 [ "$list" = "" ] && warn "Option $opt did not match anything"
2243 --enable-?*|--disable-?*)
2244 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2245 if is_in $option $COMPONENT_LIST; then
2246 test $action = disable && action=unset
2247 eval $action \$$(toupper ${option%s})_LIST
2248 elif is_in $option $CMDLINE_SELECT; then
2255 NAME="${opt#--list-}"
2256 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2258 eval show_list $NAME \$$(toupper $NAME)_LIST
2260 --help|-h) show_help
2262 --fatal-warnings) enable fatal_warnings
2265 optname="${opt%%=*}"
2266 optname="${optname#--}"
2267 optname=$(echo "$optname" | sed 's/-/_/g')
2268 if is_in $optname $CMDLINE_SET; then
2269 eval $optname='$optval'
2270 elif is_in $optname $CMDLINE_APPEND; then
2271 append $optname "$optval"
2279 disabled logging && logfile=/dev/null
2281 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2284 test -n "$cross_prefix" && enable cross_compile
2286 if enabled cross_compile; then
2287 test -n "$arch" && test -n "$target_os" ||
2288 die "Must specify target arch and OS when cross-compiling"
2291 set_default postproc_version
2293 # Check if we should build alternative libpostproc version instead of current
2294 if test "$postproc_version" = $ALT_PP_VER; then
2295 LIBPOSTPROC_VERSION=$ALT_PP_VER
2296 LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2297 LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2298 LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2299 elif test "$postproc_version" != current; then
2300 die "Invalid argument to --postproc-version. See --help output."
2303 ar_default="${cross_prefix}${ar_default}"
2304 cc_default="${cross_prefix}${cc_default}"
2305 cxx_default="${cross_prefix}${cxx_default}"
2306 nm_default="${cross_prefix}${nm_default}"
2307 pkg_config_default="${cross_prefix}${pkg_config_default}"
2308 ranlib="${cross_prefix}${ranlib}"
2309 strip_default="${cross_prefix}${strip_default}"
2311 sysinclude_default="${sysroot}/usr/include"
2313 case "$toolchain" in
2316 add_cflags -faddress-sanitizer
2317 add_ldflags -faddress-sanitizer
2321 add_cflags -fthread-sanitizer
2322 add_ldflags -fthread-sanitizer
2325 cc_default="c99wrap cl"
2326 ld_default="c99wrap link"
2327 nm_default="dumpbin -symbols"
2329 target_os_default="win32"
2332 die "Unknown toolchain $toolchain"
2336 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2337 enabled cross_compile || host_cc_default=$cc
2340 if ! $pkg_config --version >/dev/null 2>&1; then
2341 warn "$pkg_config not found, library detection may fail."
2347 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2351 EXESUF=$(exesuf $target_os)
2352 HOSTEXESUF=$(exesuf $host_os)
2354 # set temporary file name
2355 : ${TMPDIR:=$TEMPDIR}
2359 if ! check_cmd mktemp -u XXXXXX; then
2360 # simple replacement for missing mktemp
2361 # NOT SAFE FOR GENERAL USE
2363 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2368 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2369 (set -C; exec > $tmp) 2>/dev/null ||
2370 die "Unable to create temporary file in $TMPDIR."
2371 append TMPFILES $tmp
2375 trap 'rm -f -- $TMPFILES' EXIT
2380 tmpfile TMPE $EXESUF
2391 # make sure we can execute files in $TMPDIR
2392 cat > $TMPSH 2>> $logfile <<EOF
2395 chmod +x $TMPSH >> $logfile 2>&1
2396 if ! $TMPSH >> $logfile 2>&1; then
2398 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2399 variable to another directory and make sure that it is not mounted noexec.
2401 die "Sanity test failed."
2407 -std=c99) echo -c99 ;;
2408 -mcpu=*) echo -arch ${flag#*=} ;;
2409 -mieee) echo -ieee ;;
2410 -O*|-fast) echo $flag ;;
2411 -fno-math-errno) echo -assume nomath_errno ;;
2413 -Wall) echo -msg_enable level2 ;;
2414 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2415 -Wl,*) echo $flag ;;
2425 -fomit-frame-pointer) echo -Oy ;;
2427 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2428 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2429 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2435 -fno-signed-zeros) ;;
2436 -lz) echo zlib.lib ;;
2437 -lavifil32) echo vfw32.lib ;;
2438 -lavicap32) echo vfw32.lib user32.lib ;;
2439 -l*) echo ${flag#-l}.lib ;;
2448 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2449 -fomit-frame-pointer) echo -Mnoframe ;;
2460 case "${flag#*=}" in
2461 native) echo -xtarget=native ;;
2462 v9|niagara) echo -xarch=sparc ;;
2463 ultrasparc) echo -xarch=sparcvis ;;
2464 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2465 i586|pentium) echo -xchip=pentium ;;
2466 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2467 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2468 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2469 pentium4*) echo -xtarget=pentium4 ;;
2470 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2471 *-sse3) echo -xarch=sse3 ;;
2472 core2) echo -xarch=ssse3 -xchip=core2 ;;
2473 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2474 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2475 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2476 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2477 k8|opteron|athlon64|athlon-fx)
2478 echo -xarch=sse2a ;;
2479 athlon*) echo -xarch=pentium_proa ;;
2482 -std=c99) echo -xc99 ;;
2483 -fomit-frame-pointer) echo -xregs=frameptr ;;
2484 -fPIC) echo -KPIC -xcode=pic32 ;;
2485 -W*,*) echo $flag ;;
2496 case "${flag#*=}" in
2497 armv7-a|cortex-a*) echo -mv=7a8 ;;
2498 armv7-r|cortex-r*) echo -mv=7r4 ;;
2499 armv7-m|cortex-m*) echo -mv=7m3 ;;
2500 armv6*|arm11*) echo -mv=6 ;;
2501 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2503 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
2506 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
2507 -mfpu=vfp) echo --float_support=vfpv2 ;;
2508 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
2509 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
2510 -msoft-float) echo --float_support=vfplib ;;
2511 -O[0-3]|-mf=*) echo $flag ;;
2513 -pds=*) echo $flag ;;
2514 -D*|-I*) echo $flag ;;
2515 --gcc|--abi=*) echo $flag ;;
2525 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2526 unset _ld_o _ldflags _ld_lib _ld_path
2527 unset _depflags _DEPCMD _DEPFLAGS
2530 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2532 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2533 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2534 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2537 elif $_cc -v 2>&1 | grep -qi ^gcc; then
2539 gcc_version=$($_cc --version | head -n1)
2540 gcc_basever=$($_cc -dumpversion)
2541 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2542 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2543 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2544 if ! $_cc -dumpversion | grep -q '^2\.'; then
2545 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2549 elif $_cc --version 2>/dev/null | grep -q Intel; then
2551 _ident=$($_cc --version | head -n1)
2556 elif $_cc -v 2>&1 | grep -q xlc; then
2558 _ident=$($_cc -qversion 2>/dev/null | head -n1)
2560 _cflags_size='-O5 -qcompact'
2561 elif $_cc -V 2>/dev/null | grep -q Compaq; then
2563 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2565 _cflags_speed='-fast'
2567 _flags_filter=ccc_flags
2568 elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2569 test -d "$sysroot" || die "No valid sysroot specified."
2571 _ident=$($_cc --vsn | head -n1)
2572 armcc_conf="$PWD/armcc.conf"
2573 $_cc --arm_linux_configure \
2574 --arm_linux_config_file="$armcc_conf" \
2575 --configure_sysroot="$sysroot" \
2576 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2577 die "Error creating armcc configuration file."
2578 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2579 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2580 as_default="${cross_prefix}gcc"
2584 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2586 _ident=$($_cc -version | head -n1 | tr -s ' ')
2587 _flags='--gcc --abi=eabi -me'
2590 _depflags='-ppa -ppd=$(@:.o=.d)'
2591 _cflags_speed='-O3 -mf=5'
2592 _cflags_size='-O3 -mf=2'
2593 _flags_filter=tms470_flags
2594 elif $_cc -v 2>&1 | grep -q clang; then
2596 _ident=$($_cc --version | head -n1)
2600 elif $_cc -V 2>&1 | grep -q Sun; then
2602 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2603 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2604 _DEPFLAGS='-xM1 -xc99'
2607 _cflags_size='-O5 -xspace'
2608 _flags_filter=suncc_flags
2609 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2611 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2612 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2615 _flags_filter='filter_out -Wdisabled-optimization'
2616 elif $_cc -v 2>&1 | grep -q Open64; then
2618 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2619 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2622 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2623 elif $_cc -V 2>&1 | grep -q Portland; then
2625 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2626 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2627 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2628 _cflags_size="-O2 -Munroll=c:1 $opt_common"
2630 _flags_filter=pgi_flags
2631 elif $_cc 2>&1 | grep -q Microsoft; then
2633 _ident=$($cc 2>&1 | head -n1)
2634 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2635 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2638 # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2639 if $_cc 2>&1 | grep -q Linker; then
2646 _flags_filter=msvc_flags
2648 _ld_path='-libpath:'
2650 _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2651 if [ $pfx = hostcc ]; then
2652 append _cflags -Dsnprintf=_snprintf
2657 eval ${pfx}_type=\$_type
2658 eval ${pfx}_ident=\$_ident
2662 eval ${1}_C=\${_cc_c-\${${1}_C}}
2663 eval ${1}_E=\${_cc_e-\${${1}_E}}
2664 eval ${1}_O=\${_cc_o-\${${1}_O}}
2666 if [ -n "$_depflags" ]; then
2667 eval ${1}_DEPFLAGS=\$_depflags
2669 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2670 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2671 eval DEP${1}FLAGS=\$_flags
2676 cflags_filter=$_flags_filter
2677 cflags_speed=$_cflags_speed
2678 cflags_size=$_cflags_size
2679 cflags_noopt=$_cflags_noopt
2680 add_cflags $_flags $_cflags
2681 cc_ldflags=$_ldflags
2684 probe_cc hostcc "$host_cc"
2685 host_cflags_filter=$_flags_filter
2686 add_host_cflags $_flags $_cflags
2689 test -n "$cc_type" && enable $cc_type ||
2690 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2692 : ${as_default:=$cc}
2693 : ${dep_cc_default:=$cc}
2694 : ${ld_default:=$cc}
2695 : ${host_ld_default:=$host_cc}
2696 set_default ar as dep_cc ld host_ld
2699 asflags_filter=$_flags_filter
2700 add_asflags $_flags $_cflags
2704 ldflags_filter=$_flags_filter
2705 add_ldflags $_flags $_ldflags
2706 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2708 LD_LIB=${_ld_lib-$LD_LIB}
2709 LD_PATH=${_ld_path-$LD_PATH}
2711 probe_cc hostld "$host_ld"
2712 host_ldflags_filter=$_flags_filter
2713 add_host_ldflags $_flags $_ldflags
2714 HOSTLD_O=${_ld_o-$HOSTLD_O}
2716 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2717 probe_cc depcc "$dep_cc"
2718 CCDEP=${_DEPCMD:-$DEPCMD}
2719 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2723 if $ar 2>&1 | grep -q Microsoft; then
2726 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2734 add_cflags $extra_cflags
2735 add_cxxflags $extra_cxxflags
2736 add_asflags $extra_cflags
2738 if test -n "$sysroot"; then
2741 add_cppflags --sysroot="$sysroot"
2742 add_ldflags --sysroot="$sysroot"
2745 add_cppflags -I"$sysinclude"
2746 add_ldflags --sysroot="$sysroot"
2751 if test "$cpu" = host; then
2752 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2757 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2759 s/.*$1=\\([^ ]*\\).*/\\1/
2764 cpu=$(check_native -march || check_native -mcpu)
2768 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2771 # Deal with common $arch aliases
2785 "Power Macintosh"|ppc*|powerpc*)
2800 i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2805 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2808 # Add processor-specific flags
2809 if test "$cpu" = generic; then
2812 elif enabled aarch64; then
2816 cpuflags="-march=$cpu"
2819 cpuflags="-mcpu=$cpu"
2823 elif enabled alpha; then
2825 cpuflags="-mcpu=$cpu"
2827 elif enabled arm; then
2831 cpuflags="-march=$cpu"
2832 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2835 cpuflags="-mcpu=$cpu"
2837 cortex-a*) subarch=armv7a ;;
2838 cortex-r*) subarch=armv7r ;;
2839 cortex-m*) enable thumb; subarch=armv7m ;;
2840 arm11*) subarch=armv6 ;;
2841 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2842 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
2847 elif enabled avr32; then
2852 cpuflags="-mpart=$cpu"
2856 cpuflags="-march=$cpu"
2860 cpuflags="-mcpu=$cpu"
2864 cpuflags="-march=$cpu"
2868 elif enabled bfin; then
2870 cpuflags="-mcpu=$cpu"
2872 elif enabled mips; then
2874 cpuflags="-march=$cpu"
2890 24kef*|34kf*|1004kf*)
2898 elif enabled ppc; then
2900 case $(tolower $cpu) in
2901 601|ppc601|powerpc601)
2902 cpuflags="-mcpu=601"
2905 603*|ppc603*|powerpc603*)
2906 cpuflags="-mcpu=603"
2909 604*|ppc604*|powerpc604*)
2910 cpuflags="-mcpu=604"
2913 g3|75*|ppc75*|powerpc75*)
2914 cpuflags="-mcpu=750"
2917 g4|745*|ppc745*|powerpc745*)
2918 cpuflags="-mcpu=7450"
2920 74*|ppc74*|powerpc74*)
2921 cpuflags="-mcpu=7400"
2923 g5|970|ppc970|powerpc970)
2924 cpuflags="-mcpu=970"
2927 cpuflags="-mcpu=$cpu"
2930 cpuflags="-mcpu=cell"
2934 cpuflags="-mcpu=e500mc"
2938 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2942 cpuflags="-mcpu=8540 -mhard-float"
2947 elif enabled sparc; then
2950 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2951 cpuflags="-mcpu=$cpu"
2954 ultrasparc*|niagara[234])
2955 cpuflags="-mcpu=$cpu"
2959 elif enabled x86; then
2963 cpuflags="-march=$cpu"
2966 # targets that do NOT support conditional mov (cmov)
2967 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2968 cpuflags="-march=$cpu"
2971 # targets that do support conditional mov (cmov)
2972 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
2973 cpuflags="-march=$cpu"
2977 # targets that do support conditional mov but on which it's slow
2978 pentium4|pentium4m|prescott|nocona)
2979 cpuflags="-march=$cpu"
2987 add_cflags $cpuflags
2988 add_asflags $cpuflags
2990 # compiler sanity check
2992 int main(void){ return 0; }
2994 if test "$?" != 0; then
2995 echo "$cc is unable to create an executable file."
2996 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2997 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2998 echo "Only do this if you know what cross compiling means."
3000 die "C compiler test failed."
3003 add_cppflags -D_ISOC99_SOURCE
3004 add_cxxflags -D__STDC_CONSTANT_MACROS
3005 check_cflags -std=c99
3006 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3009 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3013 check_host_cflags -std=c99
3014 check_host_cflags -Wall
3020 check_code cc "" "int test[2*($expr) - 1]" &&
3021 subarch=$arch64 || subarch=$arch32
3029 check_64bit mips mips64 '_MIPS_SIM > 1'
3033 check_64bit parisc parisc64 'sizeof(void *) > 4'
3037 check_64bit ppc ppc64 'sizeof(void *) > 4'
3041 check_64bit sparc sparc64 'sizeof(void *) > 4'
3045 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3046 if test "$subarch" = "x86_64"; then
3051 check_cc <<EOF && subarch="ppc64"
3052 int test[(int)sizeof(char*) - 7];
3058 enabled spic && enable pic
3063 prefix_default="/boot/common"
3064 network_extralibs="-lnetwork"
3069 SHFLAGS='-shared -Wl,-h,$$(@F)'
3070 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3071 network_extralibs="-lsocket -lnsl"
3072 add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3073 # When using suncc to build, the Solaris linker will mark
3074 # an executable with each instruction set encountered by
3075 # the Solaris assembler. As our libraries contain their own
3076 # guards for processor-specific code, instead suppress
3077 # generation of the HWCAPS ELF section on Solaris x86 only.
3078 enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3079 nm_default='nm -P -g'
3083 oss_indev_extralibs="-lossaudio"
3084 oss_outdev_extralibs="-lossaudio"
3085 enabled gcc || check_ldflags -Wl,-zmuldefs
3088 # On OpenBSD 4.5. the compiler does not use PIC unless
3089 # explicitly using -fPIC. FFmpeg builds fine without PIC,
3090 # however the generated executable will not do anything
3091 # (simply quits with exit-code 1, no crash, no output).
3092 # Thus explicitly enable PIC here.
3096 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3098 oss_indev_extralibs="-lossaudio"
3099 oss_outdev_extralibs="-lossaudio"
3107 add_extralibs -lpoll -lgnugetopt
3111 gas="gas-preprocessor.pl $cc"
3112 enabled ppc && add_asflags -force_cpusubtype_ALL
3113 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3114 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3116 add_ldflags -Wl,-dynamic,-search_paths_first
3118 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3119 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3120 FFSERVERLDFLAGS=-Wl,-bind_at_load
3122 enabled x86_64 && objformat="macho64"
3123 enabled_any pic shared ||
3124 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3127 if test $target_os = "mingw32ce"; then
3133 if enabled x86_64; then
3134 LIBTARGET="i386:x86-64"
3135 elif enabled arm; then
3138 shlibdir_default="$bindir_default"
3141 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3142 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3143 dlltool="${cross_prefix}dlltool"
3144 if check_cmd lib.exe -list; then
3145 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3146 if enabled x86_64; then
3149 elif check_cmd $dlltool --version; then
3150 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3152 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3154 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3155 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3156 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3160 add_cppflags -U__STRICT_ANSI__
3163 if enabled shared; then
3164 # Link to the import library instead of the normal static library
3167 # Cannot build shared and static libraries at the same time with
3171 shlibdir_default="$bindir_default"
3174 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3175 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3176 SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3177 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3179 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3180 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3181 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3188 shlibdir_default="$bindir_default"
3191 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3192 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3193 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3195 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3196 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3200 *-dos|freedos|opendos)
3201 network_extralibs="-lsocket"
3204 add_cppflags -U__STRICT_ANSI__
3211 ranlib="echo ignoring ranlib"
3217 add_cppflags -D_GNU_SOURCE
3218 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3219 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3224 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3225 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3226 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3227 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3228 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3229 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3230 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3231 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3232 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3233 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3234 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3236 enable_weak os2threads
3239 add_cppflags -D_BSD_SOURCE
3244 add_cppflags -D_QNX_SOURCE
3245 network_extralibs="-lsocket"
3250 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3251 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3252 add_ldflags -Wl,--target1-abs,--no-undefined \
3253 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3254 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3255 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3256 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3257 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3260 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3266 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3267 -D_REENTRANT_SOURCE \
3268 -D_RESEARCH_SOURCE \
3271 add_compat strtod.o strtod=avpriv_strtod
3272 network_extralibs='-lbsd'
3273 exeobjs=compat/plan9/main.o
3281 die "Unknown OS '$target_os'."
3285 # determine libc flavour
3287 if check_cpp_condition features.h "defined __UCLIBC__"; then
3289 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3290 elif check_cpp_condition features.h "defined __GLIBC__"; then
3292 add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3293 elif check_header _mingw.h; then
3295 check_cpp_condition _mingw.h \
3296 "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3297 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3298 die "ERROR: MinGW runtime version must be >= 3.15."
3299 if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3300 __MINGW64_VERSION_MAJOR < 3"; then
3301 add_compat msvcrt/snprintf.o
3302 add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3304 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3306 add_cppflags -U__STRICT_ANSI__
3307 elif check_func_headers stdlib.h _get_doserrno; then
3309 add_compat strtod.o strtod=avpriv_strtod
3310 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3311 _snprintf=avpriv_snprintf \
3312 vsnprintf=avpriv_vsnprintf
3313 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3317 test -n "$libc_type" && enable $libc_type
3319 # hacks for compiler/libc/os combinations
3321 if enabled_all tms470 glibc; then
3322 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3323 add_cppflags -D__USER_LABEL_PREFIX__=
3324 add_cppflags -D__builtin_memset=memset
3325 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3326 add_cflags -pds=48 # incompatible redefinition of macro
3329 if enabled_all ccc glibc; then
3330 add_ldflags -Wl,-z,now # calls to libots crash without this
3334 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3337 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3339 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3341 set_default $PATHS_LIST
3344 # we need to build at least one lib type
3345 if ! enabled_any static shared; then
3347 At least one library type must be built.
3348 Specify --enable-static to build the static libraries or --enable-shared to
3349 build the shared libraries as well. To only build the shared libraries specify
3350 --disable-static in addition to --enable-shared.
3355 die_license_disabled() {
3356 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3359 die_license_disabled_gpl() {
3360 enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3363 die_license_disabled gpl libcdio
3364 die_license_disabled gpl libutvideo
3365 die_license_disabled gpl libx264
3366 die_license_disabled gpl libxavs
3367 die_license_disabled gpl libxvid
3368 die_license_disabled gpl x11grab
3370 die_license_disabled nonfree libaacplus
3371 die_license_disabled nonfree libfaac
3372 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3373 enabled gpl && die_license_disabled_gpl nonfree openssl
3375 die_license_disabled version3 libopencore_amrnb
3376 die_license_disabled version3 libopencore_amrwb
3377 die_license_disabled version3 libvo_aacenc
3378 die_license_disabled version3 libvo_amrwbenc
3380 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3382 disabled optimizations || check_cflags -fomit-frame-pointer
3391 enabled pic && enable_pic
3393 check_cc <<EOF || die "Symbol mangling check failed."
3396 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3397 extern_prefix=${sym%%ff_extern*}
3399 check_cc <<EOF && enable_weak inline_asm
3400 void foo(void) { __asm__ volatile ("" ::); }
3404 for restrict_keyword in restrict __restrict__ __restrict; do
3405 check_cc <<EOF && _restrict=$restrict_keyword && break
3406 void foo(char * $restrict_keyword p);
3410 check_cc <<EOF && enable attribute_packed
3411 struct { int x; } __attribute__((packed)) x;
3414 check_cc <<EOF && enable attribute_may_alias
3415 union { int x; } __attribute__((may_alias)) x;
3418 check_cc <<EOF || die "endian test failed"
3419 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3421 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3423 if enabled alpha; then
3427 elif enabled arm; then
3429 check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3430 float func(float a, float b){ return a+b; }
3433 enabled thumb && check_cflags -mthumb || check_cflags -marm
3436 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3438 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3439 case "${cross_prefix:-$cc}" in
3440 *hardfloat*) enable vfp_args; fpabi=vfp ;;
3441 *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3442 __asm__ (".eabi_attribute 28, 1");
3443 int main(void) { return 0; }
3446 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3449 enabled armv5te && check_inline_asm armv5te '"qadd r0, r0, r0"'
3450 enabled armv6 && check_inline_asm armv6 '"sadd16 r0, r0, r0"'
3451 enabled armv6t2 && check_inline_asm armv6t2 '"movt r0, #0"'
3452 enabled armvfp && check_inline_asm armvfp '"fadds s0, s0, s0"'
3453 enabled neon && check_inline_asm neon '"vadd.i16 q0, q0, q0"'
3454 enabled vfpv3 && check_inline_asm vfpv3 '"vmov.f32 s0, #1.0"'
3456 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3457 check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3459 enabled_all armv6t2 shared !pic && enable_pic
3461 elif enabled mips; then
3463 check_inline_asm loongson '"dmult.g $1, $2, $3"'
3464 enabled mips32r2 && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3465 check_inline_asm mips32r2 '"rotr $t0, $t1, 1"'
3466 enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3467 check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3468 enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3469 check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3470 enabled mipsfpu && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3471 check_inline_asm mipsfpu '"madd.d $f0, $f2, $f4, $f6"'
3473 elif enabled parisc; then
3475 if enabled gcc; then
3476 case $($cc -dumpversion) in
3477 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3481 elif enabled ppc; then
3483 enable local_aligned_8 local_aligned_16
3485 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
3486 check_inline_asm ibm_asm '"add 0, 0, 0"'
3487 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
3488 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3490 # AltiVec flags: The FSF version of GCC differs from the Apple version
3491 if enabled altivec; then
3493 check_cflags -maltivec -mabi=altivec &&
3494 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3495 check_cflags -faltivec
3497 # check if our compiler supports Motorola AltiVec C API
3498 check_cc <<EOF || disable altivec
3501 vector signed int v1 = (vector signed int) { 0 };
3502 vector signed int v2 = (vector signed int) { 1 };
3503 v1 = vec_add(v1, v2);
3508 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3511 elif enabled sparc; then
3513 enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3515 elif enabled x86; then
3517 check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3519 check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3521 enable local_aligned_8 local_aligned_16
3523 # check whether EBP is available on x86
3524 # As 'i' is stored on the stack, this program will crash
3525 # if the base pointer is used to access it because the
3526 # base pointer is cleared in the inline assembly code.
3527 check_exec_crash <<EOF && enable ebp_available
3529 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3533 # check whether EBX is available on x86
3534 check_inline_asm ebx_available '""::"b"(0)' &&
3535 check_inline_asm ebx_available '"":::"%ebx"'
3537 # check whether xmm clobbers are supported
3538 check_inline_asm xmm_clobbers '"":::"%xmm0"'
3540 # check whether binutils is new enough to compile SSSE3/MMXEXT
3541 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
3542 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3544 if ! disabled_any asm mmx yasm; then
3545 if check_cmd $yasmexe --version; then
3546 enabled x86_64 && yasm_extra="-m amd64"
3547 yasm_debug="-g dwarf2"
3548 elif check_cmd nasm -v; then
3550 yasm_debug="-g -F dwarf"
3551 enabled x86_64 && test "$objformat" = elf && objformat=elf64
3554 YASMFLAGS="-f $objformat $yasm_extra"
3555 enabled pic && append YASMFLAGS "-DPIC"
3556 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
3557 case "$objformat" in
3558 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3561 check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3562 die "yasm not found, use --disable-yasm for a crippled build"
3563 check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx_external
3564 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3565 check_yasm "CPU amdnop" && enable cpunop
3569 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3576 if enabled asm; then
3578 check_inline_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3579 $nogas "GNU assembler not found, install gas-preprocessor"
3582 check_ldflags -Wl,--as-needed
3584 if check_func dlopen; then
3586 elif check_func dlopen -ldl; then
3590 if enabled network; then
3591 check_type "sys/types.h sys/socket.h" socklen_t
3592 check_type netdb.h "struct addrinfo"
3593 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3594 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3595 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3596 check_type netinet/in.h "struct sockaddr_in6"
3597 check_type poll.h "struct pollfd"
3598 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3599 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3600 check_type netinet/sctp.h "struct sctp_event_subscribe"
3601 check_func getaddrinfo $network_extralibs
3602 check_func getservbyport $network_extralibs
3603 # Prefer arpa/inet.h over winsock2
3604 if check_header arpa/inet.h ; then
3605 check_func closesocket
3606 elif check_header winsock2.h ; then
3607 check_func_headers winsock2.h closesocket -lws2 &&
3608 network_extralibs="-lws2" ||
3609 { check_func_headers winsock2.h closesocket -lws2_32 &&
3610 network_extralibs="-lws2_32"; }
3611 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3612 check_type ws2tcpip.h socklen_t
3613 check_type ws2tcpip.h "struct addrinfo"
3614 check_type ws2tcpip.h "struct group_source_req"
3615 check_type ws2tcpip.h "struct ip_mreq_source"
3616 check_type ws2tcpip.h "struct ipv6_mreq"
3617 check_type winsock2.h "struct pollfd"
3618 check_type ws2tcpip.h "struct sockaddr_in6"
3619 check_type ws2tcpip.h "struct sockaddr_storage"
3620 check_struct winsock2.h "struct sockaddr" sa_len
3626 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3627 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3630 check_func clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3633 check_func gethrtime
3635 check_func getrusage
3636 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3637 check_func gettimeofday
3638 check_func inet_aton $network_extralibs
3640 check_func localtime_r
3641 check_func ${malloc_prefix}memalign && enable memalign
3645 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
3646 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
3647 check_func setrlimit
3648 check_func strerror_r
3649 check_func sched_getaffinity
3653 check_func_headers conio.h kbhit
3654 check_func_headers windows.h PeekNamedPipe
3655 check_func_headers io.h setmode
3656 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3657 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3658 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3659 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3660 check_func_headers windows.h GetProcessAffinityMask
3661 check_func_headers windows.h GetProcessTimes
3662 check_func_headers windows.h GetSystemTimeAsFileTime
3663 check_func_headers windows.h MapViewOfFile
3664 check_func_headers windows.h SetConsoleTextAttribute
3665 check_func_headers windows.h Sleep
3666 check_func_headers windows.h VirtualAlloc
3667 check_func_headers glob.h glob
3669 check_header direct.h
3670 check_header dlfcn.h
3672 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3674 check_header libcrystalhd/libcrystalhd_if.h
3675 check_header malloc.h
3677 check_header sys/mman.h
3678 check_header sys/param.h
3679 check_header sys/resource.h
3680 check_header sys/select.h
3681 check_header sys/time.h
3682 check_header termios.h
3683 check_header unistd.h
3684 check_header vdpau/vdpau.h
3685 check_header vdpau/vdpau_x11.h
3686 check_header windows.h
3687 check_header X11/extensions/XvMClib.h
3688 check_header asm/types.h
3690 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
3691 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3693 # check for VDA header
3694 if ! disabled vda && ! enabled ppc; then
3695 if check_header VideoDecodeAcceleration/VDADecoder.h; then
3697 add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3701 if ! disabled w32threads && ! enabled pthreads; then
3702 check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3705 # check for some common methods of building with pthread support
3706 # do this before the optional library checks as some of them require pthreads
3707 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3709 if check_func pthread_create; then
3711 elif check_func pthread_create -pthread; then
3713 add_extralibs -pthread
3714 elif check_func pthread_create -pthreads; then
3715 add_cflags -pthreads
3716 add_extralibs -pthreads
3717 elif check_func pthread_create -lpthreadGC2; then
3718 add_extralibs -lpthreadGC2
3719 elif ! check_lib pthread.h pthread_create -lpthread; then
3724 for thread in $THREADS_LIST; do
3725 if enabled $thread; then
3726 test -n "$thread_type" &&
3727 die "ERROR: Only one thread type must be selected." ||
3728 thread_type="$thread"
3732 if enabled pthreads; then
3733 check_func pthread_cancel
3736 check_lib math.h sin -lm && LIBM="-lm"
3737 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3738 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3744 for func in $MATH_FUNCS; do
3745 eval check_mathfunc $func \${${func}_args:-1}
3748 # these are off by default, so fail if requested and not available
3749 enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3750 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3751 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3752 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3753 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3754 enabled libaacplus && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3755 enabled libass && require_pkg_config libass ass/ass.h ass_library_init
3756 enabled libbluray && require libbluray libbluray/bluray.h bd_open -lbluray
3757 enabled libcdio && require2 libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3758 enabled libcelt && require libcelt celt/celt.h celt_decode -lcelt0 &&
3759 { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3760 die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3761 enabled libcaca && require_pkg_config caca caca.h caca_create_canvas
3762 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3763 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3764 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
3765 enabled libflite && require2 libflite "flite/flite.h" flite_init $flite_libs
3766 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3767 enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
3768 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3769 enabled libmodplug && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3770 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3771 enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
3772 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3773 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3774 enabled libopencv && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3775 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3776 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3777 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3778 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3779 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3780 enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
3781 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3782 media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3783 media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3784 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3785 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame &&
3786 { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3787 die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3788 enabled libutvideo && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3789 enabled libv4l2 && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3790 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3791 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3792 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3794 enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3795 die "ERROR: libvpx decoder must be installed and version must be >=0.9.1"; }
3796 enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3797 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3798 enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
3799 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3800 die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3801 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
3802 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
3803 enabled openal && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3804 check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3805 die "ERROR: openal not found"; } &&
3806 { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3807 die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3808 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3809 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3810 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3811 die "ERROR: openssl not found"; }
3813 if enabled gnutls; then
3814 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3815 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3819 if enabled libdc1394; then
3820 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3821 enable libdc1394_2; } ||
3822 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3823 enable libdc1394_1; } ||
3824 die "ERROR: No version of libdc1394 found "
3827 SDL_CONFIG="${cross_prefix}sdl-config"
3828 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3829 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3831 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3833 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3834 sdl_cflags=$("${SDL_CONFIG}" --cflags)
3835 sdl_libs=$("${SDL_CONFIG}" --libs)
3836 check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3837 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3839 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3842 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3844 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3845 makeinfo --version > /dev/null 2>&1 && enable makeinfo || disable makeinfo
3846 perl --version > /dev/null 2>&1 && enable perl || disable perl
3847 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3849 check_header linux/fb.h
3850 check_header linux/videodev.h
3851 check_header linux/videodev2.h
3852 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3854 check_header sys/videoio.h
3856 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3857 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3858 # w32api 3.12 had it defined wrong
3859 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3861 check_type "dshow.h" IBaseFilter
3863 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3864 { check_header dev/bktr/ioctl_meteor.h &&
3865 check_header dev/bktr/ioctl_bt848.h; } ||
3866 { check_header machine/ioctl_meteor.h &&
3867 check_header machine/ioctl_bt848.h; } ||
3868 { check_header dev/video/meteor/ioctl_meteor.h &&
3869 check_header dev/video/bktr/ioctl_bt848.h; } ||
3870 check_header dev/ic/bt8xx.h
3872 check_header sndio.h
3873 if check_struct sys/soundcard.h audio_buf_info bytes; then
3874 enable_safe sys/soundcard.h
3876 check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3877 #include <sys/soundcard.h>
3881 check_header soundcard.h
3883 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3885 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3886 check_func jack_port_get_latency_range -ljack
3888 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3892 require X11 X11/Xlib.h XOpenDisplay -lX11 &&
3893 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3894 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3896 if ! disabled vaapi; then
3897 check_lib va/va.h vaInitialize -lva && {
3898 check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3899 warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3903 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3904 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3905 { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3908 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3909 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3910 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3912 # add some useful compiler flags if supported
3913 check_cflags -Wdeclaration-after-statement
3915 check_cflags -Wno-parentheses
3916 check_cflags -Wno-switch
3917 check_cflags -Wno-format-zero-length
3918 check_cflags -Wdisabled-optimization
3919 check_cflags -Wpointer-arith
3920 check_cflags -Wredundant-decls
3921 check_cflags -Wno-pointer-sign
3922 check_cflags -Wwrite-strings
3923 check_cflags -Wtype-limits
3924 check_cflags -Wundef
3925 check_cflags -Wmissing-prototypes
3926 check_cflags -Wno-pointer-to-int-cast
3927 check_cflags -Wstrict-prototypes
3928 enabled extra_warnings && check_cflags -Winline
3930 # add some linker flags
3931 check_ldflags -Wl,--warn-common
3932 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3933 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3935 enabled xmm_clobber_test &&
3936 check_ldflags -Wl,--wrap,avcodec_open2 \
3937 -Wl,--wrap,avcodec_decode_audio4 \
3938 -Wl,--wrap,avcodec_decode_video2 \
3939 -Wl,--wrap,avcodec_decode_subtitle2 \
3940 -Wl,--wrap,avcodec_encode_audio2 \
3941 -Wl,--wrap,avcodec_encode_video \
3942 -Wl,--wrap,avcodec_encode_subtitle \
3943 -Wl,--wrap,sws_scale ||
3944 disable xmm_clobber_test
3947 if test_ldflags -Wl,--version-script,$TMPV; then
3948 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3949 check_cc <<EOF && enable symver_asm_label
3950 void ff_foo(void) __asm__ ("av_foo@VERSION");
3951 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3953 check_cc <<EOF && enable symver_gnu_asm
3954 __asm__(".symver ff_foo,av_foo@VERSION");
3955 void ff_foo(void) {}
3959 if [ -z "$optflags" ]; then
3960 if enabled small; then
3961 optflags=$cflags_size
3962 elif enabled optimizations; then
3963 optflags=$cflags_speed
3965 optflags=$cflags_noopt
3971 enabled lto && check_ldflags "$@"
3975 if enabled lto; then
3976 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
3978 check_ldflags -flto $cpuflags
3981 check_optflags $optflags
3982 check_optflags -fno-math-errno
3983 check_optflags -fno-signed-zeros
3985 enabled ftrapv && check_cflags -ftrapv
3987 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3992 if enabled icc; then
3993 # Just warnings, no remarks
3995 # -wd: Disable following warnings
3996 # 144, 167, 556: -Wno-pointer-sign
3997 # 1292: attribute "foo" ignored
3998 # 1419: external declaration in primary source file
3999 # 10006: ignoring unknown option -fno-signed-zeros
4000 # 10148: ignoring unknown option -Wno-parentheses
4001 # 10156: ignoring option '-W'; no argument required
4002 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4003 # 11030: Warning unknown option --as-needed
4004 # 10156: ignoring option '-export'; no argument required
4005 check_ldflags -wd10156,11030
4006 # Allow to compile with optimizations
4007 check_ldflags -march=$cpu
4008 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4009 enable ebp_available
4010 if enabled x86_32; then
4011 icc_version=$($cc -dumpversion)
4012 test ${icc_version%%.*} -ge 11 &&
4013 check_cflags -falign-stack=maintain-16-byte ||
4014 disable aligned_stack
4016 elif enabled ccc; then
4017 # disable some annoying warnings
4018 add_cflags -msg_disable bitnotint
4019 add_cflags -msg_disable mixfuncvoid
4020 add_cflags -msg_disable nonstandcast
4021 add_cflags -msg_disable unsupieee
4022 elif enabled gcc; then
4023 check_optflags -fno-tree-vectorize
4024 check_cflags -Werror=implicit-function-declaration
4025 check_cflags -Werror=missing-prototypes
4026 check_cflags -Werror=vla
4027 elif enabled llvm_gcc; then
4028 check_cflags -mllvm -stack-alignment=16
4029 elif enabled clang; then
4030 check_cflags -mllvm -stack-alignment=16
4031 check_cflags -Qunused-arguments
4032 check_cflags -Werror=implicit-function-declaration
4033 check_cflags -Werror=missing-prototypes
4034 elif enabled armcc; then
4035 # 2523: use of inline assembler is deprecated
4036 add_cflags -W${armcc_opt},--diag_suppress=2523
4037 add_cflags -W${armcc_opt},--diag_suppress=1207
4038 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4039 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4040 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4041 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4042 elif enabled tms470; then
4043 add_cflags -pds=824 -pds=837
4044 elif enabled pathscale; then
4045 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4046 elif enabled msvc; then
4047 enabled x86_32 && disable aligned_stack
4052 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4055 add_cppflags -Dmain=plan9_main
4059 enabled_any $THREADS_LIST && enable threads
4061 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4063 check_deps $CONFIG_LIST \
4069 if test $target_os = "haiku"; then
4071 disable posix_memalign
4074 ! enabled_any memalign posix_memalign aligned_malloc &&
4075 enabled_any $need_memalign && enable memalign_hack
4078 # -> enable ${lib}_deps_${dep}
4079 # -> add $dep to ${lib}_deps only once
4083 enabled "${lib}_deps_${dep}" && return 0
4084 enable "${lib}_deps_${dep}"
4085 prepend "${lib}_deps" $dep
4088 # merge deps lib components
4089 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4094 enabled $comp || continue
4095 eval "dep=\"\$${comp}_deps\""
4102 merge_deps libavfilter $FILTER_LIST
4104 echo "install prefix $prefix"
4105 echo "source path $source_path"
4106 echo "C compiler $cc"
4107 echo "ARCH $arch ($cpu)"
4108 if test "$build_suffix" != ""; then
4109 echo "build suffix $build_suffix"
4111 if test "$progs_suffix" != ""; then
4112 echo "progs suffix $progs_suffix"
4114 if test "$extra_version" != ""; then
4115 echo "version string suffix $extra_version"
4117 echo "big-endian ${bigendian-no}"
4118 echo "runtime cpu detection ${runtime_cpudetect-no}"
4119 if enabled x86; then
4120 echo "${yasmexe} ${yasm-no}"
4121 echo "MMX enabled ${mmx-no}"
4122 echo "MMXEXT enabled ${mmxext-no}"
4123 echo "3DNow! enabled ${amd3dnow-no}"
4124 echo "3DNow! extended enabled ${amd3dnowext-no}"
4125 echo "SSE enabled ${sse-no}"
4126 echo "SSSE3 enabled ${ssse3-no}"
4127 echo "AVX enabled ${avx-no}"
4128 echo "FMA4 enabled ${fma4-no}"
4129 echo "CMOV enabled ${cmov-no}"
4130 echo "CMOV is fast ${fast_cmov-no}"
4131 echo "EBX available ${ebx_available-no}"
4132 echo "EBP available ${ebp_available-no}"
4134 if enabled arm; then
4135 echo "ARMv5TE enabled ${armv5te-no}"
4136 echo "ARMv6 enabled ${armv6-no}"
4137 echo "ARMv6T2 enabled ${armv6t2-no}"
4138 echo "ARM VFP enabled ${armvfp-no}"
4139 echo "NEON enabled ${neon-no}"
4141 if enabled mips; then
4142 echo "MIPS FPU enabled ${mipsfpu-no}"
4143 echo "MIPS32R2 enabled ${mips32r2-no}"
4144 echo "MIPS DSP R1 enabled ${mipsdspr1-no}"
4145 echo "MIPS DSP R2 enabled ${mipsdspr2-no}"
4147 if enabled ppc; then
4148 echo "AltiVec enabled ${altivec-no}"
4149 echo "PPC 4xx optimizations ${ppc4xx-no}"
4150 echo "dcbzl available ${dcbzl-no}"
4152 if enabled sparc; then
4153 echo "VIS enabled ${vis-no}"
4155 echo "debug symbols ${debug-no}"
4156 echo "strip symbols ${stripping-no}"
4157 echo "optimize for size ${small-no}"
4158 echo "optimizations ${optimizations-no}"
4159 echo "static ${static-no}"
4160 echo "shared ${shared-no}"
4161 echo "postprocessing support ${postproc-no}"
4162 echo "new filter support ${avfilter-no}"
4163 echo "network support ${network-no}"
4164 echo "threading support ${thread_type-no}"
4165 echo "safe bitstream reader ${safe_bitstream_reader-no}"
4166 echo "SDL support ${sdl-no}"
4167 echo "libdxva2 enabled ${dxva2-no}"
4168 echo "libva enabled ${vaapi-no}"
4169 echo "libvdpau enabled ${vdpau-no}"
4170 echo "AVISynth enabled ${avisynth-no}"
4171 echo "frei0r enabled ${frei0r-no}"
4172 echo "gnutls enabled ${gnutls-no}"
4173 echo "libaacplus enabled ${libaacplus-no}"
4174 echo "libass enabled ${libass-no}"
4175 echo "libcaca enabled ${libcaca-no}"
4176 echo "libcdio support ${libcdio-no}"
4177 echo "libcelt enabled ${libcelt-no}"
4178 echo "libdc1394 support ${libdc1394-no}"
4179 echo "libfaac enabled ${libfaac-no}"
4180 echo "libfdk-aac enabled ${libfdk_aac-no}"
4181 echo "libgsm enabled ${libgsm-no}"
4182 echo "libiec61883 support ${libiec61883-no}"
4183 echo "libilbc enabled ${libilbc-no}"
4184 echo "libmodplug enabled ${libmodplug-no}"
4185 echo "libmp3lame enabled ${libmp3lame-no}"
4186 echo "libnut enabled ${libnut-no}"
4187 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4188 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4189 echo "libopencv support ${libopencv-no}"
4190 echo "libopenjpeg enabled ${libopenjpeg-no}"
4191 echo "libopus enabled ${libopus-no}"
4192 echo "libpulse enabled ${libpulse-no}"
4193 echo "librtmp enabled ${librtmp-no}"
4194 echo "libschroedinger enabled ${libschroedinger-no}"
4195 echo "libspeex enabled ${libspeex-no}"
4196 echo "libstagefright-h264 enabled ${libstagefright_h264-no}"
4197 echo "libtheora enabled ${libtheora-no}"
4198 echo "libtwolame enabled ${libtwolame-no}"
4199 echo "libutvideo enabled ${libutvideo-no}"
4200 echo "libv4l2 enabled ${libv4l2-no}"
4201 echo "libvo-aacenc support ${libvo_aacenc-no}"
4202 echo "libvo-amrwbenc support ${libvo_amrwbenc-no}"
4203 echo "libvorbis enabled ${libvorbis-no}"
4204 echo "libvpx enabled ${libvpx-no}"
4205 echo "libx264 enabled ${libx264-no}"
4206 echo "libxavs enabled ${libxavs-no}"
4207 echo "libxvid enabled ${libxvid-no}"
4208 echo "openal enabled ${openal-no}"
4209 echo "openssl enabled ${openssl-no}"
4210 echo "zlib enabled ${zlib-no}"
4211 echo "bzlib enabled ${bzlib-no}"
4212 echo "texi2html enabled ${texi2html-no}"
4213 echo "perl enabled ${perl-no}"
4214 echo "pod2man enabled ${pod2man-no}"
4215 echo "makeinfo enabled ${makeinfo-no}"
4216 test -n "$random_seed" &&
4217 echo "random seed ${random_seed}"
4220 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4221 echo "Enabled ${type}s:"
4222 eval list=\$$(toupper $type)_LIST
4223 print_enabled '_*' $list | sort | pr -r -3 -t
4227 license="LGPL version 2.1 or later"
4228 if enabled nonfree; then
4229 license="nonfree and unredistributable"
4230 elif enabled gplv3; then
4231 license="GPL version 3 or later"
4232 elif enabled lgplv3; then
4233 license="LGPL version 3 or later"
4234 elif enabled gpl; then
4235 license="GPL version 2 or later"
4238 echo "License: $license"
4240 echo "Creating config.mak and config.h..."
4242 test -e Makefile || $ln_s "$source_path/Makefile" .
4244 enabled stripping || strip="echo skipping strip"
4246 config_files="$TMPH config.mak"
4248 cat > config.mak <<EOF
4249 # Automatically generated by configure - do not modify!
4250 ifndef FFMPEG_CONFIG_MAK
4252 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4254 LIBDIR=\$(DESTDIR)$libdir
4255 SHLIBDIR=\$(DESTDIR)$shlibdir
4256 INCDIR=\$(DESTDIR)$incdir
4257 BINDIR=\$(DESTDIR)$bindir
4258 DATADIR=\$(DESTDIR)$datadir
4259 MANDIR=\$(DESTDIR)$mandir
4260 SRC_PATH=$source_path
4261 ifndef MAIN_MAKEFILE
4262 SRC_PATH:=\$(SRC_PATH:.%=..%)
4271 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4273 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4299 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4301 YASMFLAGS=$YASMFLAGS
4302 BUILDSUF=$build_suffix
4303 PROGSSUF=$progs_suffix
4311 EXTRA_VERSION=$extra_version
4314 CCDEP_FLAGS=$CCDEP_FLAGS
4316 ASDEP_FLAGS=$ASDEP_FLAGS
4317 CC_DEPFLAGS=$CC_DEPFLAGS
4318 AS_DEPFLAGS=$AS_DEPFLAGS
4321 HOSTCFLAGS=$host_cflags
4322 HOSTEXESUF=$HOSTEXESUF
4323 HOSTLDFLAGS=$host_ldflags
4326 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4327 HOSTCCDEP=$HOSTCCDEP
4328 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4329 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4333 TARGET_EXEC=$target_exec
4334 TARGET_PATH=$target_path
4335 LIBS-ffplay=$sdl_libs
4336 CFLAGS-ffplay=$sdl_cflags
4337 ZLIB=$($ldflags_filter -lz)
4338 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4339 EXTRALIBS=$extralibs
4340 COMPAT_OBJS=$compat_objs
4343 LIBTARGET=${LIBTARGET}
4344 SLIBNAME=${SLIBNAME}
4345 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4346 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4347 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4348 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4349 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4350 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4351 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4352 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4353 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4354 NOREDZONE_FLAGS=$noredzone_flags
4359 name=$(toupper $lcname)
4360 file=$source_path/$lcname/version.h
4361 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4362 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4363 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4364 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4369 file=$source_path/$2
4370 # This condition will be removed when we stop supporting old libpostproc versions
4371 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
4372 eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
4373 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4375 lcname=$(tolower $name)
4376 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4377 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4380 get_version_old LIBPOSTPROC libpostproc/version.h
4382 map 'get_version $v' $LIBRARY_LIST
4385 /* Automatically generated by configure - do not modify! */
4386 #ifndef FFMPEG_CONFIG_H
4387 #define FFMPEG_CONFIG_H
4388 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4389 #define FFMPEG_LICENSE "$(c_escape $license)"
4390 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4391 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4392 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4393 #define av_restrict $_restrict
4394 #define EXTERN_PREFIX "${extern_prefix}"
4395 #define EXTERN_ASM ${extern_prefix}
4396 #define SLIBSUF "$SLIBSUF"
4397 #define HAVE_MMX2 HAVE_MMXEXT
4400 test -n "$assert_level" &&
4401 echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4403 test -n "$malloc_prefix" &&
4404 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4406 if enabled yasm; then
4407 append config_files $TMPASM
4411 print_config ARCH_ "$config_files" $ARCH_LIST
4412 print_config HAVE_ "$config_files" $HAVE_LIST
4413 print_config CONFIG_ "$config_files" $CONFIG_LIST \
4417 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4418 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4420 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4421 cp_if_changed $TMPH config.h
4424 enabled yasm && cp_if_changed $TMPASM config.asm
4427 /* Generated by ffconf */
4428 #ifndef AVUTIL_AVCONFIG_H
4429 #define AVUTIL_AVCONFIG_H
4432 test "$postproc_version" != current && cat >> $TMPH <<EOF
4433 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
4434 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
4435 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
4438 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4440 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4442 cp_if_changed $TMPH libavutil/avconfig.h
4444 if test -n "$WARNINGS"; then
4445 printf "\n$WARNINGS"
4446 enabled fatal_warnings && exit 1
4449 # build pkg-config files
4451 pkgconfig_generate(){
4453 shortname=${name#lib}${build_suffix}
4458 enabled ${name#lib} || return 0
4460 cat <<EOF > $name/$name.pc
4462 exec_prefix=\${prefix}
4467 Description: $comment
4469 Requires: $(enabled shared || echo $requires)
4470 Requires.private: $(enabled shared && echo $requires)
4472 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4473 Libs.private: $(enabled shared && echo $libs)
4474 Cflags: -I\${includedir}
4477 mkdir -p doc/examples/pc-uninstalled
4478 includedir=${source_path}
4479 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4480 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4483 libdir=\${pcfiledir}/../../../$name
4484 includedir=${includedir}
4487 Description: $comment
4491 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4492 Cflags: -I\${includedir}
4496 libavfilter_pc_deps="libavutil = $LIBAVUTIL_VERSION"
4497 enabled libavfilter_deps_avcodec && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4498 enabled libavfilter_deps_avformat && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4499 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample = $LIBAVRESAMPLE_VERSION,"
4500 enabled libavfilter_deps_swscale && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4501 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4502 enabled libavfilter_deps_postproc && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4503 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4505 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4506 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4508 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4509 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4510 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4511 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4512 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4513 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4514 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4515 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4516 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4518 fix_ffmpeg_remote(){
4521 fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4522 if [ "$fixme_remote" != "" ]; then
4524 Outdated domain in git config, the official domain for ffmpeg git is since
4525 November 2011, source.ffmpeg.org, both the old and the new point to the same
4526 repository and server. To update it enter the following commands:
4528 for remote in $fixme_remote; do
4529 echolog "git remote set-url $remote $git_remote_to"
4534 if test -f "$source_path/.git/config"; then
4535 remote_from=git.videolan.org
4536 remote_to=source.ffmpeg.org
4537 fix_ffmpeg_remote git@$remote_from:ffmpeg git@$remote_to:ffmpeg
4538 fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg