3 # Libav 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 LIBAV, 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 Libav."
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:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
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]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
142 Hardware-accelerated decoding/encoding:
143 --enable-cuda enable dynamically linked CUDA [no]
144 --enable-libmfx enable HW acceleration through libmfx
145 --enable-mmal enable decoding via MMAL [no]
146 --enable-nvenc enable encoding via NVENC [no]
147 --enable-omx enable encoding via OpenMAX IL [no]
148 --enable-omx-rpi enable encoding via OpenMAX IL for Raspberry Pi [no]
150 Individual component options:
151 --disable-everything disable all components listed below
152 --disable-encoder=NAME disable encoder NAME
153 --enable-encoder=NAME enable encoder NAME
154 --disable-encoders disable all encoders
155 --disable-decoder=NAME disable decoder NAME
156 --enable-decoder=NAME enable decoder NAME
157 --disable-decoders disable all decoders
158 --disable-hwaccel=NAME disable hwaccel NAME
159 --enable-hwaccel=NAME enable hwaccel NAME
160 --disable-hwaccels disable all hwaccels
161 --disable-muxer=NAME disable muxer NAME
162 --enable-muxer=NAME enable muxer NAME
163 --disable-muxers disable all muxers
164 --disable-demuxer=NAME disable demuxer NAME
165 --enable-demuxer=NAME enable demuxer NAME
166 --disable-demuxers disable all demuxers
167 --enable-parser=NAME enable parser NAME
168 --disable-parser=NAME disable parser NAME
169 --disable-parsers disable all parsers
170 --enable-bsf=NAME enable bitstream filter NAME
171 --disable-bsf=NAME disable bitstream filter NAME
172 --disable-bsfs disable all bitstream filters
173 --enable-protocol=NAME enable protocol NAME
174 --disable-protocol=NAME disable protocol NAME
175 --disable-protocols disable all protocols
176 --enable-indev=NAME enable input device NAME
177 --disable-indev=NAME disable input device NAME
178 --disable-indevs disable input devices
179 --enable-outdev=NAME enable output device NAME
180 --disable-outdev=NAME disable output device NAME
181 --disable-outdevs disable output devices
182 --disable-devices disable all devices
183 --enable-filter=NAME enable filter NAME
184 --disable-filter=NAME disable filter NAME
185 --disable-filters disable all filters
187 External library support:
188 --enable-avisynth enable reading of AviSynth script files [no]
189 --enable-bzlib enable bzlib [autodetect]
190 --enable-frei0r enable frei0r video filtering
191 --enable-gnutls enable gnutls [no]
192 --enable-libbs2b enable bs2b DSP library [no]
193 --enable-libcdio enable audio CD grabbing with libcdio
194 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
196 --enable-libdcadec enable DCA decoding via libdcadec [no]
197 --enable-libfaac enable AAC encoding via libfaac [no]
198 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
199 --enable-libfreetype enable libfreetype [no]
200 --enable-libgsm enable GSM de/encoding via libgsm [no]
201 --enable-libilbc enable iLBC de/encoding via libilbc [no]
202 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
203 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
204 --enable-libnpp enable NVIDIA Performance Primitives-based code [no]
205 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
206 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
207 --enable-libopencv enable video filtering via libopencv [no]
208 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
209 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
210 --enable-libopus enable Opus de/encoding via libopus [no]
211 --enable-libpulse enable Pulseaudio input via libpulse [no]
212 --enable-librtmp enable RTMP[E] support via librtmp [no]
213 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
214 --enable-libsnappy enable Snappy compression [no]
215 --enable-libspeex enable Speex de/encoding via libspeex [no]
216 --enable-libtheora enable Theora encoding via libtheora [no]
217 --enable-libtwolame enable MP2 encoding via libtwolame [no]
218 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
219 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
220 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
221 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
222 --enable-libwavpack enable wavpack encoding via libwavpack [no]
223 --enable-libwebp enable WebP encoding via libwebp [no]
224 --enable-libx264 enable H.264 encoding via x264 [no]
225 --enable-libx265 enable HEVC encoding via x265 [no]
226 --enable-libxavs enable AVS encoding via xavs [no]
227 --enable-libxcb enable X11 grabbing using XCB [no]
228 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
229 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
230 --enable-libxvid enable Xvid encoding via xvidcore,
231 native MPEG-4/Xvid encoder exists [no]
232 --enable-openssl enable openssl [no]
233 --enable-x11grab enable X11 grabbing (legacy) [no]
234 --enable-zlib enable zlib [autodetect]
237 --arch=ARCH select architecture [$arch]
238 --cpu=CPU select the minimum required CPU (affects
239 instruction selection, may crash on older CPUs)
240 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
241 --enable-cross-compile assume a cross-compiler is used
242 --sysroot=PATH root of cross-build tree
243 --sysinclude=PATH location of cross-build system headers
244 --target-os=OS compiler targets OS [$target_os]
245 --target-exec=CMD command to run executables on target
246 --target-path=DIR path to view of build directory on target
247 --target-samples=DIR path to samples directory on target
248 --toolchain=NAME set tool defaults according to NAME
250 --ar=AR use archive tool AR [$ar_default]
251 --as=AS use assembler AS [$as_default]
252 --cc=CC use C compiler CC [$cc_default]
253 --objcc=OCC use ObjC compiler OCC [$cc_default]
254 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
255 --ld=LD use linker LD
256 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
257 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
258 --host-cc=HOSTCC use host C compiler HOSTCC
259 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
260 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
261 --host-ld=HOSTLD use host linker HOSTLD
262 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
263 --host-libs=HLIBS use libs HLIBS when linking for host
264 --host-os=OS compiler host OS [$target_os]
265 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
266 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
267 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
268 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
269 --extra-libs=ELIBS add ELIBS [$ELIBS]
270 --extra-version=STRING version string suffix []
271 --optflags=OPTFLAGS override optimization-related compiler flags
272 --build-suffix=SUFFIX library name suffix []
273 --enable-pic build position-independent code
274 --enable-thumb compile for Thumb instruction set
275 --enable-lto use link-time optimization
276 --env="ENV=override" override the environment variables
278 Advanced options (experts only):
279 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
280 --custom-allocator=NAME use a supported custom allocator
281 --disable-symver disable symbol versioning
282 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
283 --disable-safe-bitstream-reader
284 disable buffer boundary checking in bitreaders
285 (faster, but may crash)
286 --enable-memalign-hack emulate memalign, interferes with memory debuggers
287 --enable-sram allow use of on-chip SRAM
289 Optimization options (experts only):
290 --disable-asm disable all assembly optimizations
291 --disable-altivec disable AltiVec optimizations
292 --disable-vsx disable VSX optimizations
293 --disable-power8 disable POWER8 optimizations
294 --disable-amd3dnow disable 3DNow! optimizations
295 --disable-amd3dnowext disable 3DNow! extended optimizations
296 --disable-mmx disable MMX optimizations
297 --disable-mmxext disable MMXEXT optimizations
298 --disable-sse disable SSE optimizations
299 --disable-sse2 disable SSE2 optimizations
300 --disable-sse3 disable SSE3 optimizations
301 --disable-ssse3 disable SSSE3 optimizations
302 --disable-sse4 disable SSE4 optimizations
303 --disable-sse42 disable SSE4.2 optimizations
304 --disable-avx disable AVX optimizations
305 --disable-xop disable XOP optimizations
306 --disable-fma3 disable FMA3 optimizations
307 --disable-fma4 disable FMA4 optimizations
308 --disable-avx2 disable AVX2 optimizations
309 --disable-armv5te disable armv5te optimizations
310 --disable-armv6 disable armv6 optimizations
311 --disable-armv6t2 disable armv6t2 optimizations
312 --disable-vfp disable VFP optimizations
313 --disable-neon disable NEON optimizations
314 --disable-inline-asm disable use of inline assembly
315 --disable-yasm disable use of nasm/yasm assembly
317 Developer options (useful when working on Libav itself):
318 --disable-debug disable debugging symbols
319 --enable-debug=LEVEL set the debug level [$debuglevel]
320 --disable-optimizations disable compiler optimizations
321 --enable-extra-warnings enable more compiler warnings
322 --samples=PATH location of test samples for FATE, if not set use
323 \$LIBAV_SAMPLES at make invocation time.
324 --enable-neon-clobber-test check NEON registers for clobbering (should be
325 used only for debugging purposes)
326 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
327 should be used only for debugging purposes)
328 --enable-random randomly enable/disable components
330 --enable-random=LIST randomly enable/disable specific components or
331 --disable-random=LIST component groups. LIST is a comma-separated list
332 of NAME[:PROB] entries where NAME is a component
333 (group) and PROB the probability associated with
335 --random-seed=VALUE seed value for --enable/disable-random
336 --disable-valgrind-backtrace do not print a backtrace under Valgrind
337 (only applies to --disable-optimizations builds)
339 NOTE: Object files are built at the place where configure is launched.
347 echo "$@" >> $logfile
354 printf '%5s %s\n' "${i}" "${line}"
356 done < $1 >> $logfile
367 WARNINGS="${WARNINGS}WARNING: $*\n"
374 If you think configure made a mistake, make sure you are using the latest
375 version from Git. If the latest version fails, report the problem to the
376 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
378 if disabled logging; then
380 Rerun configure with logging enabled (do not use --disable-logging), and
381 include the log this produces with your report.
385 Include the log file "$logfile" produced by configure as this will help
392 # Avoid locale weirdness, besides we really just want to translate ASCII.
394 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
398 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
402 echo "$*" | sed 's/["\\]/\\\0/g'
406 v=$(echo "$1" | sed "s/'/'\\\\''/g")
407 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
412 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
419 eval "case $v in $pat) echo $v ;; esac"
427 eval "case $v in $pat) ;; *) echo $v ;; esac"
434 for v; do eval $m; done
440 for v; do echo ${v}${suffix}; done
455 eval : \${$var:=$value}
460 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
466 eval $(sanitize_var_name "$var")='$*'
470 eval echo \$$(sanitize_var_name "$1")
475 eval level=\${${pvar}_level:=0}
476 eval ${pvar}_${level}="\$$pvar"
477 eval ${pvar}_level=$(($level+1))
483 eval level=\${${pvar}_level:-0}
484 test $level = 0 && continue
485 eval level=$(($level-1))
486 eval $pvar="\${${pvar}_${level}}"
487 eval ${pvar}_level=$level
488 eval unset ${pvar}_${level}
510 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
516 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
522 enabled $var && continue
523 eval sel="\$${var}_select"
524 eval sgs="\$${var}_suggest"
528 enable_deep_weak $sgs
540 disabled $var && continue
549 test "${1#!}" = "$1" && op== || op=!=
550 eval test "x\$${1#!}" $op "xyes"
554 test "${1#!}" = "$1" && op== || op=!=
555 eval test "x\$${1#!}" $op "xno"
560 enabled $opt || return 1
566 disabled $opt || return 1
572 enabled $opt && return 0
578 disabled $opt && return 0
585 eval : \${$opt:=\$${opt}_default}
593 [ $var = $value ] && return 0
601 enabled ${cfg}_checking && die "Circular dependency for $cfg."
602 disabled ${cfg}_checking && continue
603 enable ${cfg}_checking
606 eval dep_all="\$${cfg}_deps"
607 eval dep_any="\$${cfg}_deps_any"
608 eval dep_sel="\$${cfg}_select"
609 eval dep_sgs="\$${cfg}_suggest"
610 eval dep_ifa="\$${cfg}_if"
611 eval dep_ifn="\$${cfg}_if_any"
613 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
614 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
615 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
617 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
618 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
619 enabled_all $dep_all || disable $cfg
620 enabled_any $dep_any || disable $cfg
621 disabled_any $dep_sel && disable $cfg
623 if enabled $cfg; then
625 enable_deep_weak $dep_sgs
628 disable ${cfg}_checking
637 for cfg in $allopts; do
638 enabled $cfg || continue
639 eval dep_extralibs="\$${cfg}_extralibs"
640 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
648 map 'eval echo "$v \${$v:-no}"' "$@" |
649 awk "BEGIN { split(\"$files\", files) }
651 c = \"$pfx\" toupper(\$1);
657 if (file ~ /\\.h\$/) {
658 printf(\"#define %s %d\\n\", c, v) >>file;
659 } else if (file ~ /\\.asm\$/) {
660 printf(\"%%define %s %d\\n\", c, v) >>file;
661 } else if (file ~ /\\.mak\$/) {
662 n = -v ? \"\" : \"!\";
663 printf(\"%s%s=yes\\n\", n, c) >>file;
673 enabled $v && printf "%s\n" ${v%$suf}
680 eval "$var=\"\$$var $*\""
686 eval "$var=\"$* \$$var\""
692 for tok in $(eval echo \$$var); do
693 uniq_list="$(filter_out $tok $uniq_list) $tok"
695 eval "$var=\"${uniq_list}\""
703 append CFLAGS $($cflags_filter "$@")
707 append ASFLAGS $($asflags_filter "$@")
711 append OBJCFLAGS $($objcflags_filter "$@")
715 append LDFLAGS $($ldflags_filter "$@")
719 append LDEXEFLAGS $($ldflags_filter "$@")
723 append STRIPFLAGS "$@"
727 prepend extralibs $($ldflags_filter "$@")
731 append host_cppflags "$@"
735 append host_cflags $($host_cflags_filter "$@")
739 append host_ldflags $($host_ldflags_filter "$@")
743 append compat_objs $1
745 map 'add_cppflags -D$v' "$@"
750 "$@" >> $logfile 2>&1
754 eval printf '%s\\n' $CC_O
758 eval printf '%s\\n' $CC_E
765 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
772 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
779 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
783 eval printf '%s\\n' $AS_O
790 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
794 log check_inline_asm "$@"
799 check_cc "$@" <<EOF && enable $name
800 void foo(void){ __asm__ volatile($code); }
806 check_inline_asm ${1}_inline "\"$2\""
807 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
815 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
819 eval printf '%s\\n' $LD_O
824 flags=$(filter_out '-l*' "$@")
825 libs=$(filter '-l*' "$@")
826 check_cc $($cflags_filter $flags) || return
827 flags=$($ldflags_filter $flags)
828 libs=$($ldflags_filter $libs)
829 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
834 test "${hdr%.h}" = "${hdr}" &&
835 echo "#include $hdr" ||
836 echo "#include <$hdr>"
846 for hdr in $headers; do
849 echo "int main(void) { $code; return 0; }"
850 } | check_$check "$@"
854 log check_cppflags "$@"
855 check_cc "$@" <<EOF && append CPPFLAGS "$@"
862 set -- $($cflags_filter "$@")
869 log check_cflags "$@"
870 test_cflags "$@" && add_cflags "$@"
875 set -- $($cflags_filter "$@")
876 check_objcc "$@" <<EOF
882 log check_cflags "$@"
883 test_objcflags "$@" && add_objcflags "$@"
887 log test_ldflags "$@"
889 int main(void){ return 0; }
894 log check_ldflags "$@"
895 test_ldflags "$@" && add_ldflags "$@"
899 log test_stripflags "$@"
900 # call check_cc to get a fresh TMPO
902 int main(void) { return 0; }
904 check_cmd $strip $STRIPFLAGS "$@" $TMPO
908 log check_stripflags "$@"
909 test_stripflags "$@" && add_stripflags "$@"
913 log check_header "$@"
917 check_cpp "$@" <<EOF && enable_safe $header
928 check_ld "$@" <<EOF && enable $func
930 int main(void){ $func(); }
935 log check_mathfunc "$@"
939 test $narg = 2 && args="f, g" || args="f"
941 check_ld "$@" <<EOF && enable $func
943 float foo(float f, float g) { return $func($args); }
944 int main(void){ return 0; }
948 check_func_headers(){
949 log check_func_headers "$@"
954 for hdr in $headers; do
957 for func in $funcs; do
958 echo "long check_$func(void) { return (long) $func; }"
960 echo "int main(void) { return 0; }"
961 } | check_ld "$@" && enable $funcs && enable_safe $headers
964 check_cpp_condition(){
965 log check_cpp_condition "$@"
972 #error "unsatisfied condition: $condition"
982 check_header $header && check_func $func "$@" && add_extralibs "$@"
990 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
994 log check_pkg_config "$@"
999 check_cmd $pkg_config --exists --print-errors $pkg || return
1000 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1001 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1002 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1003 set_safe "${pkg}_cflags" $pkg_cflags &&
1004 set_safe "${pkg}_libs" $pkg_libs
1008 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1014 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1015 # are safe but may not be available everywhere. Thus we use
1016 # raise(SIGTERM) instead. The check is run in a subshell so we
1017 # can redirect the "Terminated" message from the shell. SIGBUS
1018 # is not defined by standard C so it is used conditionally.
1020 (check_exec "$@") >> $logfile 2>&1 <<EOF
1022 static void sighandler(int sig){
1028 int (*func_ptr)(void) = foo;
1030 signal(SIGILL, sighandler);
1031 signal(SIGFPE, sighandler);
1032 signal(SIGSEGV, sighandler);
1034 signal(SIGBUS, sighandler);
1046 disable_safe "$type"
1047 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1051 log check_struct "$@"
1056 disable_safe "${struct}_${member}"
1057 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1058 enable_safe "${struct}_${member}"
1062 log check_builtin "$@"
1068 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1071 check_compile_assert(){
1072 log check_compile_assert "$@"
1078 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1086 check_lib $header $func "$@" || die "ERROR: $name not found"
1094 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1097 require_pkg_config(){
1099 check_pkg_config "$@" || die "ERROR: $pkg not found"
1100 add_cflags $(get_safe "${pkg}_cflags")
1101 add_extralibs $(get_safe "${pkg}_libs")
1105 eval printf '%s\\n' $HOSTCC_E
1109 eval printf '%s\\n' $HOSTCC_O
1113 log check_host_cc "$@"
1116 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1120 log check_host_cpp "$@"
1123 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1126 check_host_cppflags(){
1127 log check_host_cppflags "$@"
1128 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1133 check_host_cflags(){
1134 log check_host_cflags "$@"
1135 set -- $($host_cflags_filter "$@")
1136 check_host_cc "$@" <<EOF && append host_cflags "$@"
1141 check_host_cpp_condition(){
1142 log check_host_cpp_condition "$@"
1146 check_host_cpp "$@" <<EOF
1149 #error "unsatisfied condition: $condition"
1157 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1161 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1162 mkdir -p "$(dirname $2)"
1166 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1167 # system-dependent things.
1169 AVCODEC_COMPONENTS="
1177 AVDEVICE_COMPONENTS="
1181 AVFILTER_COMPONENTS="
1184 AVFORMAT_COMPONENTS="
1190 AVRESAMPLE_COMPONENTS=""
1191 AVUTIL_COMPONENTS=""
1195 $AVDEVICE_COMPONENTS
1196 $AVFILTER_COMPONENTS
1197 $AVFORMAT_COMPONENTS
1198 $AVRESAMPLE_COMPONENTS
1204 filter_audio_example
1208 transcode_aac_example
1211 EXTERNAL_LIBRARY_LIST="
1265 safe_bitstream_reader
1327 $EXTERNAL_LIBRARY_LIST
1393 ARCH_EXT_LIST_X86_SIMD="
1421 $ARCH_EXT_LIST_X86_SIMD
1426 ARCH_EXT_LIST_MIPS="
1461 sync_val_compare_and_swap
1475 AVFoundation_AVFoundation_h
1480 cdio_paranoia_paranoia_h
1482 dev_bktr_ioctl_bt848_h
1483 dev_bktr_ioctl_meteor_h
1485 dev_video_bktr_ioctl_bt848_h
1486 dev_video_meteor_ioctl_meteor_h
1494 machine_ioctl_bt848_h
1495 machine_ioctl_meteor_h
1559 GetProcessAffinityMask
1560 GetProcessMemoryInfo
1563 GetSystemTimeAsFileTime
1568 jack_port_get_latency_range
1580 SetConsoleTextAttribute
1591 TOOLCHAIN_FEATURES="
1612 CONDITION_VARIABLE_Ptr
1615 struct_group_source_req
1616 struct_ip_mreq_source
1619 struct_rusage_ru_maxrss
1621 struct_sockaddr_sa_len
1622 struct_sockaddr_storage
1623 struct_v4l2_frmivalenum_discrete
1628 $(add_suffix _external $ARCH_EXT_LIST)
1629 $(add_suffix _inline $ARCH_EXT_LIST)
1657 # options emitted with CONFIG_ prefix but not available on the command line
1803 # code dependency declarations
1805 # architecture extensions
1810 armv8_deps="aarch64"
1811 neon_deps_any="aarch64 arm"
1812 intrinsics_neon_deps="neon"
1813 vfp_deps_any="aarch64 arm"
1816 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1824 x86_64_select="i686"
1825 x86_64_suggest="fast_cmov"
1828 amd3dnowext_deps="amd3dnow"
1844 mmx_external_deps="yasm"
1845 mmx_inline_deps="inline_asm"
1846 mmx_suggest="mmx_external mmx_inline"
1848 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1849 eval dep=\$${ext}_deps
1850 eval ${ext}_external_deps='"${dep}_external"'
1851 eval ${ext}_inline_deps='"${dep}_inline"'
1852 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1855 aligned_stack_if_any="aarch64 ppc x86"
1856 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1857 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1858 fast_unaligned_if_any="aarch64 ppc x86"
1859 simd_align_16_if_any="altivec neon sse"
1861 # system capabilities
1862 symver_if_any="symver_asm_label symver_gnu_asm"
1863 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1866 atomics_gcc_if="sync_val_compare_and_swap"
1867 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1868 atomics_win32_if="MemoryBarrier"
1869 atomics_native_if_any="$ATOMICS_LIST"
1870 w32threads_deps="atomics_native"
1871 threads_if_any="$THREADS_LIST"
1875 dirac_parse_select="golomb"
1876 error_resilience_select="me_cmp"
1877 faandct_deps="faan fdctdsp"
1878 faanidct_deps="faan idctdsp"
1879 h264dsp_select="startcode"
1880 intrax8_select="blockdsp idctdsp"
1883 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1884 mpeg_er_select="error_resilience"
1885 mpegaudio_select="mpegaudiodsp"
1886 mpegaudiodsp_select="dct"
1887 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1888 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1889 vc1dsp_select="h264chroma qpeldsp startcode"
1891 # decoders / encoders
1892 aac_decoder_select="imdct15 mdct sinewin"
1893 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1894 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1895 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1896 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1897 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1898 adpcm_g722_decoder_select="g722dsp"
1899 adpcm_g722_encoder_select="g722dsp"
1900 aic_decoder_select="golomb idctdsp"
1901 alac_encoder_select="lpc"
1902 als_decoder_select="bswapdsp"
1903 amrnb_decoder_select="lsp"
1904 amrwb_decoder_select="lsp"
1905 amv_decoder_select="sp5x_decoder"
1906 ape_decoder_select="bswapdsp"
1907 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1908 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1909 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1910 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1911 atrac1_decoder_select="mdct sinewin"
1912 atrac3_decoder_select="mdct"
1913 atrac3p_decoder_select="mdct sinewin"
1914 bink_decoder_select="blockdsp hpeldsp"
1915 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1916 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1917 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1918 cllc_decoder_select="bswapdsp"
1919 comfortnoise_encoder_select="lpc"
1920 cook_decoder_select="audiodsp mdct sinewin"
1921 cscd_decoder_select="lzo"
1922 cscd_decoder_suggest="zlib"
1923 dca_decoder_select="fmtconvert mdct"
1924 dds_decoder_select="texturedsp"
1925 dnxhd_decoder_select="blockdsp idctdsp"
1926 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1927 dvvideo_decoder_select="dvprofile idctdsp"
1928 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1929 dxa_decoder_deps="zlib"
1930 dxv_decoder_select="lzf texturedsp"
1931 eac3_decoder_select="ac3_decoder"
1932 eac3_encoder_select="ac3_encoder"
1933 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1934 eatgq_decoder_select="aandcttables idctdsp"
1935 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1936 exr_decoder_deps="zlib"
1937 ffv1_decoder_select="golomb rangecoder"
1938 ffv1_encoder_select="rangecoder"
1939 ffvhuff_decoder_select="huffyuv_decoder"
1940 ffvhuff_encoder_select="huffyuv_encoder"
1941 fic_decoder_select="golomb"
1942 flac_decoder_select="flacdsp golomb"
1943 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1944 flashsv_decoder_deps="zlib"
1945 flashsv_encoder_deps="zlib"
1946 flashsv2_decoder_deps="zlib"
1947 flv_decoder_select="h263_decoder"
1948 flv_encoder_select="h263_encoder"
1949 fourxm_decoder_select="blockdsp bswapdsp"
1950 fraps_decoder_select="bswapdsp huffman"
1951 g2m_decoder_deps="zlib"
1952 g2m_decoder_select="blockdsp idctdsp jpegtables"
1953 h261_decoder_select="mpeg_er mpegvideo"
1954 h261_encoder_select="aandcttables mpegvideoenc"
1955 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1956 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1957 h263i_decoder_select="h263_decoder"
1958 h263p_encoder_select="h263_encoder"
1959 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1960 h264_decoder_suggest="error_resilience"
1961 hap_decoder_select="snappy texturedsp"
1962 hap_encoder_deps="libsnappy"
1963 hap_encoder_select="texturedspenc"
1964 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1965 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1966 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1967 iac_decoder_select="imc_decoder"
1968 imc_decoder_select="bswapdsp fft mdct sinewin"
1969 indeo3_decoder_select="hpeldsp"
1970 indeo4_decoder_select="ividsp"
1971 indeo5_decoder_select="ividsp"
1972 interplay_video_decoder_select="hpeldsp"
1973 jpegls_decoder_select="golomb mjpeg_decoder"
1974 jpegls_encoder_select="golomb"
1975 jv_decoder_select="blockdsp"
1976 lagarith_decoder_select="huffyuvdsp"
1977 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1978 loco_decoder_select="golomb"
1979 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1980 metasound_decoder_select="lsp mdct sinewin"
1981 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1982 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1983 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1984 mjpegb_decoder_select="mjpeg_decoder"
1985 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
1986 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
1987 mlp_decoder_select="mlp_parser"
1988 motionpixels_decoder_select="bswapdsp"
1989 mp1_decoder_select="mpegaudio"
1990 mp1float_decoder_select="mpegaudio"
1991 mp2_decoder_select="mpegaudio"
1992 mp2float_decoder_select="mpegaudio"
1993 mp3_decoder_select="mpegaudio"
1994 mp3adu_decoder_select="mpegaudio"
1995 mp3adufloat_decoder_select="mpegaudio"
1996 mp3float_decoder_select="mpegaudio"
1997 mp3on4_decoder_select="mpegaudio"
1998 mp3on4float_decoder_select="mpegaudio"
1999 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2000 mpc8_decoder_select="mpegaudiodsp"
2001 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2002 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2003 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2004 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2005 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2006 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2007 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2008 mpeg4_encoder_select="h263_encoder"
2009 msa1_decoder_select="mss34dsp"
2010 msmpeg4v1_decoder_select="h263_decoder"
2011 msmpeg4v2_decoder_select="h263_decoder"
2012 msmpeg4v2_encoder_select="h263_encoder"
2013 msmpeg4v3_decoder_select="h263_decoder"
2014 msmpeg4v3_encoder_select="h263_encoder"
2015 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2016 mts2_decoder_select="mss34dsp"
2017 mxpeg_decoder_select="mjpeg_decoder"
2018 nellymoser_decoder_select="mdct sinewin"
2019 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2020 nuv_decoder_select="idctdsp lzo"
2021 on2avc_decoder_select="mdct"
2022 opus_decoder_deps="avresample"
2023 opus_decoder_select="imdct15"
2024 png_decoder_deps="zlib"
2025 png_encoder_deps="zlib"
2026 png_encoder_select="huffyuvencdsp"
2027 prores_decoder_select="idctdsp"
2028 prores_encoder_select="fdctdsp"
2029 qcelp_decoder_select="lsp"
2030 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2031 ra_144_encoder_select="audio_frame_queue lpc"
2032 ralf_decoder_select="golomb"
2033 rscc_decoder_deps="zlib"
2034 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2035 rv10_encoder_select="h263_encoder"
2036 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2037 rv20_encoder_select="h263_encoder"
2038 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2039 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2040 screenpresso_decoder_deps="zlib"
2041 shorten_decoder_select="golomb"
2042 sipr_decoder_select="lsp"
2043 sp5x_decoder_select="mjpeg_decoder"
2044 svq1_decoder_select="hpeldsp"
2045 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2046 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2047 svq3_decoder_suggest="zlib"
2048 tak_decoder_select="audiodsp"
2049 tdsc_decoder_deps="zlib"
2050 tdsc_decoder_select="mjpeg_decoder"
2051 theora_decoder_select="vp3_decoder"
2052 thp_decoder_select="mjpeg_decoder"
2053 tiff_decoder_suggest="zlib"
2054 tiff_encoder_suggest="zlib"
2055 truehd_decoder_select="mlp_decoder"
2056 truemotion2_decoder_select="bswapdsp"
2057 truespeech_decoder_select="bswapdsp"
2058 tscc_decoder_deps="zlib"
2059 txd_decoder_select="texturedsp"
2060 twinvq_decoder_select="mdct lsp sinewin"
2061 utvideo_decoder_select="bswapdsp"
2062 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2063 vble_decoder_select="huffyuvdsp"
2064 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2065 vc1image_decoder_select="vc1_decoder"
2066 vorbis_decoder_select="mdct"
2067 vorbis_encoder_select="mdct"
2068 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2069 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2070 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2071 vp6a_decoder_select="vp6_decoder"
2072 vp6f_decoder_select="vp6_decoder"
2073 vp7_decoder_select="h264pred videodsp vp8dsp"
2074 vp8_decoder_select="h264pred videodsp vp8dsp"
2075 vp9_decoder_select="videodsp"
2076 webp_decoder_select="vp8_decoder"
2077 wmapro_decoder_select="mdct sinewin wma_freqs"
2078 wmav1_decoder_select="mdct sinewin wma_freqs"
2079 wmav1_encoder_select="mdct sinewin wma_freqs"
2080 wmav2_decoder_select="mdct sinewin wma_freqs"
2081 wmav2_encoder_select="mdct sinewin wma_freqs"
2082 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2083 wmv1_decoder_select="h263_decoder"
2084 wmv1_encoder_select="h263_encoder"
2085 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2086 wmv2_encoder_select="h263_encoder wmv2dsp"
2087 wmv3_decoder_select="vc1_decoder"
2088 wmv3image_decoder_select="wmv3_decoder"
2089 zerocodec_decoder_deps="zlib"
2090 zlib_decoder_deps="zlib"
2091 zlib_encoder_deps="zlib"
2092 zmbv_decoder_deps="zlib"
2093 zmbv_encoder_deps="zlib"
2095 # hardware accelerators
2096 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2097 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2098 vaapi_deps="va_va_h"
2099 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2100 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2101 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2103 h263_vaapi_hwaccel_deps="vaapi"
2104 h263_vaapi_hwaccel_select="h263_decoder"
2105 h264_d3d11va_hwaccel_deps="d3d11va"
2106 h264_d3d11va_hwaccel_select="h264_decoder"
2107 h264_dxva2_hwaccel_deps="dxva2"
2108 h264_dxva2_hwaccel_select="h264_decoder"
2109 h264_mmal_decoder_deps="mmal"
2110 h264_mmal_hwaccel_deps="mmal"
2111 h264_mmal_decoder_select="h264_decoder"
2112 h264_mmal_encoder_deps="mmal"
2113 h264_omx_encoder_deps="omx"
2114 h264_qsv_hwaccel_deps="libmfx"
2115 h264_vaapi_hwaccel_deps="vaapi"
2116 h264_vaapi_hwaccel_select="h264_decoder"
2117 h264_vda_hwaccel_deps="vda"
2118 h264_vda_hwaccel_select="h264_decoder"
2119 h264_vda_old_hwaccel_deps="vda"
2120 h264_vda_old_hwaccel_select="h264_decoder"
2121 h264_vdpau_hwaccel_deps="vdpau"
2122 h264_vdpau_hwaccel_select="h264_decoder"
2123 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2124 hevc_d3d11va_hwaccel_select="hevc_decoder"
2125 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2126 hevc_dxva2_hwaccel_select="hevc_decoder"
2127 hevc_qsv_hwaccel_deps="libmfx"
2128 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2129 hevc_vdpau_hwaccel_select="hevc_decoder"
2130 mpeg1_vdpau_hwaccel_deps="vdpau"
2131 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2132 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2133 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2134 mpeg2_dxva2_hwaccel_deps="dxva2"
2135 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2136 mpeg2_qsv_hwaccel_deps="libmfx"
2137 mpeg2_vaapi_hwaccel_deps="vaapi"
2138 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2139 mpeg2_vdpau_hwaccel_deps="vdpau"
2140 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2141 mpeg4_omx_encoder_deps="omx"
2142 mpeg4_vaapi_hwaccel_deps="vaapi"
2143 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2144 mpeg4_vdpau_hwaccel_deps="vdpau"
2145 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2146 vc1_d3d11va_hwaccel_deps="d3d11va"
2147 vc1_d3d11va_hwaccel_select="vc1_decoder"
2148 vc1_dxva2_hwaccel_deps="dxva2"
2149 vc1_dxva2_hwaccel_select="vc1_decoder"
2150 vc1_vaapi_hwaccel_deps="vaapi"
2151 vc1_vaapi_hwaccel_select="vc1_decoder"
2152 vc1_vdpau_hwaccel_deps="vdpau"
2153 vc1_vdpau_hwaccel_select="vc1_decoder"
2154 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2155 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2156 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2157 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2159 # hardware-accelerated codecs
2160 nvenc_deps_any="dlopen LoadLibrary"
2161 nvenc_extralibs='$ldl'
2162 omx_deps="dlopen pthreads"
2163 omx_extralibs='$ldl'
2166 vaapi_encode_deps="vaapi"
2168 hwupload_cuda_filter_deps="cuda"
2169 scale_npp_filter_deps="cuda libnpp"
2171 h264_nvenc_encoder_deps="nvenc"
2172 h264_qsv_decoder_deps="libmfx"
2173 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2174 h264_qsv_encoder_deps="libmfx"
2175 h264_qsv_encoder_select="qsvenc"
2176 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2177 h264_vaapi_encoder_select="vaapi_encode golomb"
2179 hevc_nvenc_encoder_deps="nvenc"
2180 hevc_qsv_decoder_deps="libmfx"
2181 hevc_qsv_encoder_deps="libmfx"
2182 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2183 hevc_qsv_encoder_select="qsvenc"
2184 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2185 hevc_vaapi_encoder_select="vaapi_encode golomb"
2186 mpeg2_qsv_decoder_deps="libmfx"
2187 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2188 mpeg2_qsv_encoder_deps="libmfx"
2189 mpeg2_qsv_encoder_select="qsvenc"
2191 nvenc_h264_encoder_deps="nvenc"
2192 nvenc_hevc_encoder_deps="nvenc"
2195 h264_parser_select="golomb h264dsp"
2196 hevc_parser_select="golomb"
2197 mpegvideo_parser_select="mpegvideo"
2198 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2199 vc1_parser_select="vc1dsp"
2202 mjpeg2jpeg_bsf_select="jpegtables"
2204 # external libraries
2205 libdcadec_decoder_deps="libdcadec"
2206 libfaac_encoder_deps="libfaac"
2207 libfaac_encoder_select="audio_frame_queue"
2208 libfdk_aac_decoder_deps="libfdk_aac"
2209 libfdk_aac_encoder_deps="libfdk_aac"
2210 libfdk_aac_encoder_select="audio_frame_queue"
2211 libgsm_decoder_deps="libgsm"
2212 libgsm_encoder_deps="libgsm"
2213 libgsm_ms_decoder_deps="libgsm"
2214 libgsm_ms_encoder_deps="libgsm"
2215 libilbc_decoder_deps="libilbc"
2216 libilbc_encoder_deps="libilbc"
2217 libkvazaar_encoder_deps="libkvazaar"
2218 libmp3lame_encoder_deps="libmp3lame"
2219 libmp3lame_encoder_select="audio_frame_queue"
2220 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2221 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2222 libopencore_amrnb_encoder_select="audio_frame_queue"
2223 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2224 libopenh264_encoder_deps="libopenh264"
2225 libopenjpeg_decoder_deps="libopenjpeg"
2226 libopenjpeg_encoder_deps="libopenjpeg"
2227 libopus_decoder_deps="libopus"
2228 libopus_encoder_deps="libopus"
2229 libopus_encoder_select="audio_frame_queue"
2230 libschroedinger_decoder_deps="libschroedinger"
2231 libschroedinger_encoder_deps="libschroedinger"
2232 libspeex_decoder_deps="libspeex"
2233 libspeex_encoder_deps="libspeex"
2234 libspeex_encoder_select="audio_frame_queue"
2235 libtheora_encoder_deps="libtheora"
2236 libtwolame_encoder_deps="libtwolame"
2237 libvo_aacenc_encoder_deps="libvo_aacenc"
2238 libvo_aacenc_encoder_select="audio_frame_queue"
2239 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2240 libvorbis_encoder_deps="libvorbis"
2241 libvorbis_encoder_select="audio_frame_queue"
2242 libvpx_vp8_decoder_deps="libvpx"
2243 libvpx_vp8_encoder_deps="libvpx"
2244 libvpx_vp9_decoder_deps="libvpx"
2245 libvpx_vp9_encoder_deps="libvpx"
2246 libwavpack_encoder_deps="libwavpack"
2247 libwebp_encoder_deps="libwebp"
2248 libx262_encoder_deps="libx262"
2249 libx264_encoder_deps="libx264"
2250 libx265_encoder_deps="libx265"
2251 libxavs_encoder_deps="libxavs"
2252 libxvid_encoder_deps="libxvid"
2255 ac3_demuxer_select="ac3_parser"
2256 asf_demuxer_select="riffdec"
2257 asf_muxer_select="riffenc"
2258 asf_stream_muxer_select="asf_muxer"
2259 avi_demuxer_select="iso_media riffdec"
2260 avi_muxer_select="riffenc"
2261 avisynth_demuxer_deps="avisynth"
2262 avisynth_demuxer_select="riffdec"
2263 caf_demuxer_select="iso_media riffdec"
2264 dash_muxer_select="mp4_muxer"
2265 dirac_demuxer_select="dirac_parser"
2266 dv_demuxer_select="dvprofile"
2267 dv_muxer_select="dvprofile"
2268 dxa_demuxer_select="riffdec"
2269 eac3_demuxer_select="ac3_parser"
2270 f4v_muxer_select="mov_muxer"
2271 flac_demuxer_select="flac_parser"
2272 hds_muxer_select="flv_muxer"
2273 hls_muxer_select="mpegts_muxer"
2274 ipod_muxer_select="mov_muxer"
2275 ismv_muxer_select="mov_muxer"
2276 matroska_audio_muxer_select="matroska_muxer"
2277 matroska_demuxer_select="iso_media riffdec"
2278 matroska_demuxer_suggest="bzlib lzo zlib"
2279 matroska_muxer_select="iso_media riffenc"
2280 mmf_muxer_select="riffenc"
2281 mov_demuxer_select="iso_media riffdec"
2282 mov_demuxer_suggest="zlib"
2283 mov_muxer_select="iso_media riffenc rtpenc_chain"
2284 mp3_demuxer_select="mpegaudio_parser"
2285 mp4_muxer_select="mov_muxer"
2286 mpegts_demuxer_select="iso_media"
2287 mpegts_muxer_select="adts_muxer latm_muxer"
2288 mpegtsraw_demuxer_select="mpegts_demuxer"
2289 mxf_d10_muxer_select="mxf_muxer"
2290 nut_muxer_select="riffenc"
2291 nuv_demuxer_select="riffdec"
2292 oga_muxer_select="ogg_muxer"
2293 ogg_demuxer_select="dirac_parse"
2294 opus_muxer_select="ogg_muxer"
2295 psp_muxer_select="mov_muxer"
2296 rtp_demuxer_select="sdp_demuxer"
2297 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2298 rtsp_demuxer_select="http_protocol rtpdec"
2299 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2300 sap_demuxer_select="sdp_demuxer"
2301 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2302 sdp_demuxer_select="rtpdec"
2303 smoothstreaming_muxer_select="ismv_muxer"
2304 spdif_muxer_select="aac_parser"
2305 spx_muxer_select="ogg_muxer"
2306 swf_demuxer_suggest="zlib"
2307 tak_demuxer_select="tak_parser"
2308 tg2_muxer_select="mov_muxer"
2309 tgp_muxer_select="mov_muxer"
2310 w64_demuxer_select="wav_demuxer"
2311 wav_demuxer_select="riffdec"
2312 wav_muxer_select="riffenc"
2313 webm_muxer_select="iso_media riffenc"
2314 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2315 wtv_demuxer_select="mpegts_demuxer riffdec"
2316 xmv_demuxer_select="riffdec"
2317 xwma_demuxer_select="riffdec"
2320 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2321 alsa_outdev_deps="alsa_asoundlib_h"
2322 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2323 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2324 dv1394_indev_deps="dv1394"
2325 dv1394_indev_select="dv_demuxer"
2326 fbdev_indev_deps="linux_fb_h"
2327 jack_indev_deps="jack_jack_h"
2328 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2329 libcdio_indev_deps="libcdio"
2330 libdc1394_indev_deps="libdc1394"
2331 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2332 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2333 pulse_indev_deps="libpulse"
2334 sndio_indev_deps="sndio_h"
2335 sndio_outdev_deps="sndio_h"
2336 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2337 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2338 vfwcap_indev_extralibs="-lavicap32"
2339 x11grab_indev_deps="x11grab"
2340 x11grab_xcb_indev_deps="libxcb"
2343 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2344 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2345 ffrtmpcrypt_protocol_select="tcp_protocol"
2346 ffrtmphttp_protocol_deps="!librtmp_protocol"
2347 ffrtmphttp_protocol_select="http_protocol"
2348 gopher_protocol_select="network"
2349 http_protocol_select="tcp_protocol"
2350 httpproxy_protocol_select="tcp_protocol"
2351 https_protocol_select="tls_protocol"
2352 icecast_protocol_select="http_protocol"
2353 librtmp_protocol_deps="librtmp"
2354 librtmpe_protocol_deps="librtmp"
2355 librtmps_protocol_deps="librtmp"
2356 librtmpt_protocol_deps="librtmp"
2357 librtmpte_protocol_deps="librtmp"
2358 mmsh_protocol_select="http_protocol"
2359 mmst_protocol_select="network"
2360 rtmp_protocol_deps="!librtmp_protocol"
2361 rtmp_protocol_select="tcp_protocol"
2362 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2363 rtmps_protocol_deps="!librtmp_protocol"
2364 rtmps_protocol_select="tls_protocol"
2365 rtmpt_protocol_select="ffrtmphttp_protocol"
2366 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2367 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2368 rtp_protocol_select="udp_protocol"
2369 sctp_protocol_deps="struct_sctp_event_subscribe"
2370 sctp_protocol_select="network"
2371 srtp_protocol_select="rtp_protocol srtp"
2372 tcp_protocol_select="network"
2373 tls_gnutls_protocol_deps="gnutls"
2374 tls_gnutls_protocol_select="tcp_protocol"
2375 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2376 tls_openssl_protocol_select="tcp_protocol"
2377 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2378 udp_protocol_select="network"
2379 unix_protocol_deps="sys_un_h"
2380 unix_protocol_select="network"
2383 blackframe_filter_deps="gpl"
2384 boxblur_filter_deps="gpl"
2385 bs2b_filter_deps="libbs2b"
2386 cropdetect_filter_deps="gpl"
2387 delogo_filter_deps="gpl"
2388 drawtext_filter_deps="libfreetype"
2389 frei0r_filter_deps="frei0r dlopen"
2390 frei0r_filter_extralibs='$ldl'
2391 frei0r_src_filter_deps="frei0r dlopen"
2392 frei0r_src_filter_extralibs='$ldl'
2393 hqdn3d_filter_deps="gpl"
2394 interlace_filter_deps="gpl"
2395 ocv_filter_deps="libopencv"
2396 resample_filter_deps="avresample"
2397 scale_filter_deps="swscale"
2398 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2401 avcodec_example_deps="avcodec avutil"
2402 filter_audio_example_deps="avfilter avutil"
2403 metadata_example_deps="avformat avutil"
2404 output_example_deps="avcodec avformat avutil swscale"
2405 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2406 transcode_aac_example_deps="avcodec avformat avresample"
2408 # libraries, in linking order
2409 avcodec_deps="avutil"
2410 avdevice_deps="avformat avcodec avutil"
2411 avfilter_deps="avutil"
2412 avformat_deps="avcodec avutil"
2413 avresample_deps="avutil"
2414 swscale_deps="avutil"
2417 avconv_deps="avcodec avfilter avformat avresample swscale"
2418 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2419 fps_filter null_filter resample_filter scale_filter
2420 setpts_filter trim_filter"
2421 avplay_deps="avcodec avfilter avformat avresample sdl"
2422 avplay_libs='$sdl_libs'
2423 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2424 avprobe_deps="avcodec avformat"
2428 texi2html_deps="doc"
2430 # default parameters
2432 logfile="config.log"
2434 # installation paths
2435 prefix_default="/usr/local"
2436 bindir_default='${prefix}/bin'
2437 datadir_default='${prefix}/share/avconv'
2438 docdir_default='${prefix}/share/doc/libav'
2439 incdir_default='${prefix}/include'
2440 libdir_default='${prefix}/lib'
2441 mandir_default='${prefix}/share/man'
2442 shlibdir_default="$libdir_default"
2447 host_cc_default="gcc"
2452 pkg_config_default=pkg-config
2458 arch_default=$(uname -m)
2463 target_os_default=$(tolower $(uname -s))
2464 host_os=$target_os_default
2466 # configurable options
2467 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2472 enable faan faandct faanidct
2473 enable optimizations
2474 enable safe_bitstream_reader
2476 enable swscale_alpha
2477 enable valgrind_backtrace
2479 # By default, enable only those hwaccels that have no external dependencies.
2480 enable d3d11va dxva2 vda vdpau
2483 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2486 FULLNAME='$(NAME)$(BUILDSUF)'
2487 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2490 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2491 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2492 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2493 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2494 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2495 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2518 host_cflags_filter=echo
2519 host_ldflags_filter=echo
2521 target_path='$(CURDIR)'
2523 # since the object filename is not given with the -MM flag, the compiler
2524 # is only able to print the basename, and we must add the path ourselves
2525 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2529 if test -f configure; then
2532 source_path=$(cd $(dirname "$0"); pwd)
2533 echo "$source_path" | grep -q '[[:blank:]]' &&
2534 die "Out of tree builds are impossible with whitespace in source path."
2535 test -e "$source_path/config.h" &&
2536 die "Out of tree builds are impossible with config.h in source dir."
2543 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2549 file=$source_path/$3
2550 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2553 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2554 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2555 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2556 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2557 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2558 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2559 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2560 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2561 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2563 find_things_extern(){
2566 file=$source_path/$3
2567 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2570 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2571 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2587 for n in $COMPONENT_LIST; do
2588 v=$(toupper ${n%s})_LIST
2590 eval ${n}_if_any="\$$v"
2593 enable $ARCH_EXT_LIST
2596 echo "Unknown option \"$1\"."
2597 echo "See $0 --help for available options."
2602 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2608 echo $* | sed s/$suffix//g | print_3_columns
2620 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2621 echo "prob ${prob:-0.5}"
2629 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2630 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2639 --extra-ldexeflags=*)
2640 add_ldexeflags $optval
2643 add_extralibs $optval
2646 disable $INDEV_LIST $OUTDEV_LIST
2649 debuglevel="$optval"
2652 disable $PROGRAM_LIST
2654 --disable-everything)
2655 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2658 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2659 disable $LIBRARY_LIST $PROGRAM_LIST doc
2661 --enable-random|--disable-random)
2662 action=${opt%%-random}
2663 do_random ${action#--} $COMPONENT_LIST
2665 --enable-random=*|--disable-random=*)
2666 action=${opt%%-random=*}
2667 do_random ${action#--} $optval
2669 --enable-*=*|--disable-*=*)
2670 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2671 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2672 eval list=\$$(toupper $thing)_LIST
2673 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2674 $action $(filter "$name" $list)
2676 --enable-avserver|--disable-avserver*)
2677 warn "avserver has been removed, the ${opt} option is only"\
2678 "provided for compatibility and will be removed in the future"
2680 --enable-?*|--disable-?*)
2681 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2682 if is_in $option $COMPONENT_LIST; then
2683 test $action = disable && action=unset
2684 eval $action \$$(toupper ${option%s})_LIST
2685 elif is_in $option $CMDLINE_SELECT; then
2692 NAME="${opt#--list-}"
2693 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2695 eval show_list $NAME \$$(toupper $NAME)_LIST
2697 --help|-h) show_help
2700 optname="${opt%%=*}"
2701 optname="${optname#--}"
2702 optname=$(echo "$optname" | sed 's/-/_/g')
2703 if is_in $optname $CMDLINE_SET; then
2704 eval $optname='$optval'
2705 elif is_in $optname $CMDLINE_APPEND; then
2706 append $optname "$optval"
2718 disabled logging && logfile=/dev/null
2720 # Disable all the library-specific components if the library itself
2721 # is disabled, see AVCODEC_LIST and following _LIST variables.
2723 disable_components(){
2724 disabled ${1} && disable $(
2725 eval components="\$$(toupper ${1})_COMPONENTS"
2726 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2730 map 'disable_components $v' $LIBRARY_LIST
2732 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2735 case "$toolchain" in
2737 cc_default="${toolchain%-asan}"
2738 add_cflags -fsanitize=address
2739 add_ldflags -fsanitize=address
2742 cc_default="${toolchain%-msan}"
2743 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2744 add_ldflags -fsanitize=memory
2747 cc_default="${toolchain%-tsan}"
2748 add_cflags -fsanitize=thread -pie
2749 add_ldflags -fsanitize=thread -pie
2750 case "$toolchain" in
2758 cc_default="${toolchain%-usan}"
2759 add_cflags -fsanitize=undefined
2760 add_ldflags -fsanitize=undefined
2761 case "$toolchain" in
2768 target_exec_default="valgrind"
2769 case "$toolchain" in
2771 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2774 target_exec_args="--track-origins=yes --leak-check=full"
2779 # Check whether the current MSVC version needs the C99 converter.
2780 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2781 # support enough of C99 to build libav. Default to the new
2782 # behaviour if the regexp was unable to match anything, since this
2783 # successfully parses the version number of existing supported
2784 # versions that require the converter (MSVC 2010 and 2012).
2785 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2786 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2789 cc_default="c99wrap cl"
2791 ld_default="$source_path/compat/windows/mslink"
2792 nm_default="dumpbin -symbols"
2799 target_os_default="win32"
2800 # Use a relative path for TMPDIR. This makes sure all the
2801 # ffconf temp files are written with a relative path, avoiding
2802 # issues with msys/win32 path conversion for MSVC parameters
2803 # such as -Fo<file> or -out:<file>.
2809 nm_default="dumpbin -symbols"
2811 target_os_default="win32"
2815 add_cflags -fprofile-arcs -ftest-coverage
2816 add_ldflags -fprofile-arcs -ftest-coverage
2819 add_cflags -fprofile-arcs -ftest-coverage
2820 add_ldflags --coverage
2823 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2824 add_cflags -fno-strict-overflow -fstack-protector-all
2825 add_ldflags -Wl,-z,relro -Wl,-z,now
2828 die "Unknown toolchain $toolchain"
2832 test -n "$cross_prefix" && enable cross_compile
2834 if enabled cross_compile; then
2835 test -n "$arch" && test -n "$target_os" ||
2836 die "Must specify target arch and OS when cross-compiling"
2839 ar_default="${cross_prefix}${ar_default}"
2840 cc_default="${cross_prefix}${cc_default}"
2841 occ_default="${cross_prefix}${occ_default}"
2842 nm_default="${cross_prefix}${nm_default}"
2843 pkg_config_default="${cross_prefix}${pkg_config_default}"
2844 ranlib="${cross_prefix}${ranlib}"
2845 strip="${cross_prefix}${strip}"
2847 sysinclude_default="${sysroot}/usr/include"
2849 set_default arch cc pkg_config sysinclude target_exec target_os
2850 enabled cross_compile || host_cc_default=$cc
2853 if ! $pkg_config --version >/dev/null 2>&1; then
2854 warn "$pkg_config not found, library detection may fail."
2860 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2864 EXESUF=$(exesuf $target_os)
2865 HOSTEXESUF=$(exesuf $host_os)
2867 # set temporary file name
2868 : ${TMPDIR:=$TEMPDIR}
2872 if ! check_cmd mktemp -u XXXXXX; then
2873 # simple replacement for missing mktemp
2874 # NOT SAFE FOR GENERAL USE
2876 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2881 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2882 (set -C; exec > $tmp) 2>/dev/null ||
2883 die "Unable to create temporary file in $TMPDIR."
2884 append TMPFILES $tmp
2888 trap 'rm -f -- $TMPFILES' EXIT
2892 tmpfile TMPE $EXESUF
2903 # make sure we can execute files in $TMPDIR
2904 cat > $TMPSH 2>> $logfile <<EOF
2907 chmod +x $TMPSH >> $logfile 2>&1
2908 if ! $TMPSH >> $logfile 2>&1; then
2910 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2911 variable to another directory and make sure that it is not mounted noexec.
2913 die "Sanity test failed."
2919 # Filter out MSVC cl.exe options from cflags that shouldn't
2920 # be passed to gas-preprocessor
2930 -std=c99) echo -c99 ;;
2931 -mcpu=*) echo -arch ${flag#*=} ;;
2932 -mieee) echo -ieee ;;
2933 -O*|-fast) echo $flag ;;
2934 -fno-math-errno) echo -assume nomath_errno ;;
2936 -Wall) echo -msg_enable level2 ;;
2937 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2938 -Wl,*) echo $flag ;;
2948 -Wno-switch) echo -Wno-switch-enum ;;
2949 -Wno-format-zero-length) ;;
2950 -Wdisabled-optimization) ;;
2951 -Wno-pointer-sign) echo -Wno-other ;;
2957 msvc_common_flags(){
2960 # In addition to specifying certain flags under the compiler
2961 # specific filters, they must be specified here as well or else the
2962 # generic catch all at the bottom will print the original flag.
2966 -fomit-frame-pointer) ;;
2970 -fno-signed-zeros) ;;
2974 -lz) echo zlib.lib ;;
2975 -lavifil32) echo vfw32.lib ;;
2976 -lavicap32) echo vfw32.lib user32.lib ;;
2977 -lx264) echo libx264.lib ;;
2978 -l*) echo ${flag#-l}.lib ;;
2979 -L*) echo -libpath:${flag#-L} ;;
2986 msvc_common_flags "$@"
2989 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2990 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2991 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2992 -wd4273 -wd4554 -wd4701 ;;
2998 msvc_common_flags "$@"
3001 # Despite what Intel's documentation says -Wall, which is supported
3002 # on Windows, does enable remarks so disable them here.
3003 -Wall) echo $flag -Qdiag-disable:remark ;;
3004 -std=c99) echo -Qstd=c99 ;;
3012 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3013 -fomit-frame-pointer) echo -Mnoframe ;;
3024 case "${flag#*=}" in
3025 native) echo -xtarget=native ;;
3026 v9|niagara) echo -xarch=sparc ;;
3027 ultrasparc) echo -xarch=sparcvis ;;
3028 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3029 i586|pentium) echo -xchip=pentium ;;
3030 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3031 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3032 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3033 pentium4*) echo -xtarget=pentium4 ;;
3034 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3035 *-sse3) echo -xarch=sse3 ;;
3036 core2) echo -xarch=ssse3 -xchip=core2 ;;
3037 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3038 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3039 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3040 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3041 k8|opteron|athlon64|athlon-fx)
3042 echo -xarch=sse2a ;;
3043 athlon*) echo -xarch=pentium_proa ;;
3046 -std=c99) echo -xc99 ;;
3047 -fomit-frame-pointer) echo -xregs=frameptr ;;
3048 -fPIC) echo -KPIC -xcode=pic32 ;;
3049 -W*,*) echo $flag ;;
3050 -f*-*|-W*|-mimpure-text) ;;
3061 case "${flag#*=}" in
3062 armv7-a|cortex-a*) echo -mv=7a8 ;;
3063 armv7-r|cortex-r*) echo -mv=7r4 ;;
3064 armv7-m|cortex-m*) echo -mv=7m3 ;;
3065 armv6*|arm11*) echo -mv=6 ;;
3066 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3068 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3071 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3072 -mfpu=vfp) echo --float_support=vfpv2 ;;
3073 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3074 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3075 -msoft-float) echo --float_support=vfplib ;;
3076 -O[0-3]|-mf=*) echo $flag ;;
3078 -pds=*) echo $flag ;;
3079 -D*|-I*) echo $flag ;;
3080 --gcc|--abi=*) echo $flag ;;
3090 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3091 unset _ld_o _ldflags _ld_lib _ld_path
3092 unset _depflags _DEPCMD _DEPFLAGS
3095 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3097 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3098 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3099 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3102 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3104 gcc_version=$($_cc --version | head -n1)
3105 gcc_basever=$($_cc -dumpversion)
3106 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3107 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3108 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3109 if ! $_cc -dumpversion | grep -q '^2\.'; then
3110 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3114 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3116 _ident=$($_cc --version | head -n1)
3121 elif $_cc -v 2>&1 | grep -q xlc; then
3123 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3125 _cflags_size='-O5 -qcompact'
3126 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3128 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3130 _cflags_speed='-fast'
3132 _flags_filter=ccc_flags
3133 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3134 test -d "$sysroot" || die "No valid sysroot specified."
3136 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3137 armcc_conf="$PWD/armcc.conf"
3138 $_cc --arm_linux_configure \
3139 --arm_linux_config_file="$armcc_conf" \
3140 --configure_sysroot="$sysroot" \
3141 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3142 die "Error creating armcc configuration file."
3143 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3144 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3145 as_default="${cross_prefix}gcc"
3149 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3151 _ident=$($_cc -version | head -n1 | tr -s ' ')
3152 _flags='--gcc --abi=eabi -me'
3155 _depflags='-ppa -ppd=$(@:.o=.d)'
3156 _cflags_speed='-O3 -mf=5'
3157 _cflags_size='-O3 -mf=2'
3158 _flags_filter=tms470_flags
3159 elif $_cc -v 2>&1 | grep -q clang; then
3161 _ident=$($_cc --version 2>/dev/null | head -n1)
3162 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3165 elif $_cc -V 2>&1 | grep -q Sun; then
3167 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3168 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3169 _DEPFLAGS='-xM1 -xc99'
3172 _cflags_size='-O5 -xspace'
3173 _flags_filter=suncc_flags
3174 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3176 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3177 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3180 _flags_filter='filter_out -Wdisabled-optimization'
3181 elif $_cc -v 2>&1 | grep -q Open64; then
3183 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3184 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3187 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3188 elif $_cc -V 2>&1 | grep -q Portland; then
3190 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3191 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3192 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3193 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3195 _flags_filter=pgi_flags
3196 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3198 _ident=$($_cc | head -n1)
3199 # 4509: "This form of conditional instruction is deprecated"
3200 _flags="-nologo -ignore 4509"
3201 _flags_filter=armasm_flags
3202 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3204 _ident=$($_cc 2>&1 | head -n1)
3205 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3206 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3209 if $_cc -nologo- 2>&1 | grep -q Linker; then
3216 _flags_filter=msvc_flags
3218 _ld_path='-libpath:'
3220 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3221 elif $_cc 2>&1 | grep -q Intel; then
3223 _ident=$($_cc 2>&1 | head -n1)
3224 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3225 # Not only is O3 broken on 13.x+ but it is slower on all previous
3226 # versions (tested) as well.
3228 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3229 if $_cc 2>&1 | grep -q Linker; then
3236 _flags_filter=icl_flags
3238 _ld_path='-libpath:'
3239 # -Qdiag-error to make icl error when seeing certain unknown arguments
3240 _flags='-nologo -Qdiag-error:4044,10157'
3241 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3242 # with MSVC which enables it by default.
3243 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3244 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3246 _ident=$($_cc --version | head -n1)
3250 _flags_filter=cparser_flags
3253 eval ${pfx}_type=\$_type
3254 eval ${pfx}_ident=\$_ident
3258 eval ${1}_C=\${_cc_c-\${${1}_C}}
3259 eval ${1}_E=\${_cc_e-\${${1}_E}}
3260 eval ${1}_O=\${_cc_o-\${${1}_O}}
3262 if [ -n "$_depflags" ]; then
3263 eval ${1}_DEPFLAGS=\$_depflags
3265 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3266 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3267 eval DEP${1}FLAGS=\$_flags
3272 cflags_filter=$_flags_filter
3273 cflags_speed=$_cflags_speed
3274 cflags_size=$_cflags_size
3275 cflags_noopt=$_cflags_noopt
3276 add_cflags $_flags $_cflags
3277 cc_ldflags=$_ldflags
3280 probe_cc hostcc "$host_cc"
3281 host_cflags_filter=$_flags_filter
3282 add_host_cflags $_flags $_cflags
3285 test -n "$cc_type" && enable $cc_type ||
3286 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3288 : ${as_default:=$cc}
3289 : ${objcc_default:=$cc}
3290 : ${dep_cc_default:=$cc}
3291 : ${ld_default:=$cc}
3292 : ${host_ld_default:=$host_cc}
3293 set_default ar as objcc dep_cc ld host_ld
3296 asflags_filter=$_flags_filter
3297 add_asflags $_flags $_cflags
3300 probe_cc objcc "$objcc"
3301 objcflags_filter=$_flags_filter
3302 add_objcflags $_flags $_cflags
3306 ldflags_filter=$_flags_filter
3307 add_ldflags $_flags $_ldflags
3308 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3310 LD_LIB=${_ld_lib-$LD_LIB}
3311 LD_PATH=${_ld_path-$LD_PATH}
3313 probe_cc hostld "$host_ld"
3314 host_ldflags_filter=$_flags_filter
3315 add_host_ldflags $_flags $_ldflags
3316 HOSTLD_O=${_ld_o-$HOSTLD_O}
3318 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3319 probe_cc depcc "$dep_cc"
3320 CCDEP=${_DEPCMD:-$DEPCMD}
3321 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3325 if $ar 2>&1 | grep -q Microsoft; then
3328 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3331 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3332 arflags='-Xany -r -c'
3339 add_cflags $extra_cflags
3340 add_objcflags $extra_objcflags
3341 add_asflags $extra_cflags
3343 if test -n "$sysroot"; then
3346 add_cppflags --sysroot="$sysroot"
3347 add_ldflags --sysroot="$sysroot"
3350 add_cppflags -I"$sysinclude"
3351 add_ldflags --sysroot="$sysroot"
3356 if test "$cpu" = host; then
3357 enabled cross_compile &&
3358 die "--cpu=host makes no sense when cross-compiling."
3363 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3365 s/.*$1=\\([^ ]*\\).*/\\1/
3370 cpu=$(check_native -march || check_native -mcpu)
3374 test "${cpu:-host}" = host &&
3375 die "--cpu=host not supported with compiler $cc"
3378 # Deal with common $arch aliases
3402 "Power Macintosh"|ppc*|powerpc*)
3417 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3422 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3425 # Add processor-specific flags
3426 if enabled aarch64; then
3430 cpuflags="-march=$cpu"
3433 cpuflags="-mcpu=$cpu"
3437 elif enabled alpha; then
3439 cpuflags="-mcpu=$cpu"
3441 elif enabled arm; then
3444 check_cpp_condition stddef.h \
3445 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3450 if check_arm_arch 4; then echo armv4
3451 elif check_arm_arch 4T; then echo armv4t
3452 elif check_arm_arch 5; then echo armv5
3453 elif check_arm_arch 5E; then echo armv5e
3454 elif check_arm_arch 5T; then echo armv5t
3455 elif check_arm_arch 5TE; then echo armv5te
3456 elif check_arm_arch 5TEJ; then echo armv5te
3457 elif check_arm_arch 6; then echo armv6
3458 elif check_arm_arch 6J; then echo armv6j
3459 elif check_arm_arch 6K; then echo armv6k
3460 elif check_arm_arch 6Z; then echo armv6z
3461 elif check_arm_arch 6ZK; then echo armv6zk
3462 elif check_arm_arch 6T2; then echo armv6t2
3463 elif check_arm_arch 7; then echo armv7
3464 elif check_arm_arch 7A 7_A; then echo armv7-a
3465 elif check_arm_arch 7S; then echo armv7-a
3466 elif check_arm_arch 7R 7_R; then echo armv7-r
3467 elif check_arm_arch 7M 7_M; then echo armv7-m
3468 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3469 elif check_arm_arch 8A 8_A; then echo armv8-a
3473 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3477 cpuflags="-march=$cpu"
3478 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3481 cpuflags="-mcpu=$cpu"
3483 cortex-a*) subarch=armv7a ;;
3484 cortex-r*) subarch=armv7r ;;
3485 cortex-m*) enable thumb; subarch=armv7m ;;
3486 arm11*) subarch=armv6 ;;
3487 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3488 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3489 *) subarch=$(probe_arm_arch) ;;
3495 armv5t*) enable fast_clz ;;
3496 armv[6-8]*) enable fast_clz fast_unaligned ;;
3499 elif enabled avr32; then
3504 cpuflags="-mpart=$cpu"
3508 cpuflags="-march=$cpu"
3512 cpuflags="-mcpu=$cpu"
3516 cpuflags="-march=$cpu"
3520 elif enabled bfin; then
3522 cpuflags="-mcpu=$cpu"
3524 elif enabled mips; then
3526 cpuflags="-march=$cpu"
3528 elif enabled ppc; then
3532 case $(tolower $cpu) in
3533 601|ppc601|powerpc601)
3534 cpuflags="-mcpu=601"
3537 603*|ppc603*|powerpc603*)
3538 cpuflags="-mcpu=603"
3541 604*|ppc604*|powerpc604*)
3542 cpuflags="-mcpu=604"
3545 g3|75*|ppc75*|powerpc75*)
3546 cpuflags="-mcpu=750"
3549 g4|745*|ppc745*|powerpc745*)
3550 cpuflags="-mcpu=7450"
3553 74*|ppc74*|powerpc74*)
3554 cpuflags="-mcpu=7400"
3557 g5|970|ppc970|powerpc970)
3558 cpuflags="-mcpu=970"
3562 cpuflags="-mcpu=$cpu"
3566 cpuflags="-mcpu=$cpu"
3570 cpuflags="-mcpu=cell"
3575 cpuflags="-mcpu=e500mc"
3579 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3584 cpuflags="-mcpu=8540 -mhard-float"
3590 elif enabled sparc; then
3593 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3594 cpuflags="-mcpu=$cpu"
3596 ultrasparc*|niagara[234])
3597 cpuflags="-mcpu=$cpu"
3601 elif enabled x86; then
3605 cpuflags="-march=$cpu"
3609 # targets that do NOT support nopl and conditional mov (cmov)
3610 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3611 cpuflags="-march=$cpu"
3614 # targets that do support nopl and conditional mov (cmov)
3615 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3616 cpuflags="-march=$cpu"
3620 # targets that do support conditional mov but on which it's slow
3621 pentium4|pentium4m|prescott|nocona)
3622 cpuflags="-march=$cpu"
3630 if [ "$cpu" != generic ]; then
3631 add_cflags $cpuflags
3632 add_asflags $cpuflags
3633 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3636 # compiler sanity check
3638 int main(void){ return 0; }
3640 if test "$?" != 0; then
3641 echo "$cc is unable to create an executable file."
3642 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3643 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3644 echo "Only do this if you know what cross compiling means."
3646 die "C compiler test failed."
3649 add_cppflags -D_ISOC99_SOURCE
3650 check_cflags -std=c99
3651 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3654 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3658 add_host_cppflags -D_ISOC99_SOURCE
3659 check_host_cflags -std=c99
3660 check_host_cflags -Wall
3661 check_host_cflags -O3
3667 check_code cc "" "int test[2*($expr) - 1]" &&
3668 subarch=$arch64 || subarch=$arch32
3676 check_64bit mips mips64 '_MIPS_SIM > 1'
3680 check_64bit parisc parisc64 'sizeof(void *) > 4'
3684 check_64bit ppc ppc64 'sizeof(void *) > 4'
3688 check_64bit s390 s390x 'sizeof(void *) > 4'
3692 check_64bit sparc sparc64 'sizeof(void *) > 4'
3696 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3697 if test "$subarch" = "x86_64"; then
3704 enabled spic && enable_weak pic
3710 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3711 enabled shared && add_ldflags -Wl,-brtl
3715 enable section_data_rel_ro
3716 SLIB_INSTALL_NAME='$(SLIBNAME)'
3718 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3721 prefix_default="/boot/common"
3722 network_extralibs="-lnetwork"
3726 SHFLAGS='-shared -Wl,-h,$$(@F)'
3727 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3728 network_extralibs="-lsocket -lnsl"
3729 # When using suncc to build, the Solaris linker will mark
3730 # an executable with each instruction set encountered by
3731 # the Solaris assembler. As our libraries contain their own
3732 # guards for processor-specific code, instead suppress
3733 # generation of the HWCAPS ELF section on Solaris x86 only.
3734 enabled_all suncc x86 &&
3735 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3736 add_ldflags -Wl,-M,mapfile
3737 nm_default='nm -P -g'
3738 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3742 oss_indev_extralibs="-lossaudio"
3743 oss_outdev_extralibs="-lossaudio"
3748 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3750 oss_indev_extralibs="-lossaudio"
3751 oss_outdev_extralibs="-lossaudio"
3759 add_extralibs -lpoll -lgnugetopt
3762 enabled ppc && add_asflags -force_cpusubtype_ALL
3763 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3764 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3765 add_ldflags -Wl,-dynamic,-search_paths_first
3767 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3768 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3770 enabled x86_64 && objformat="macho64"
3771 enabled_any pic shared ||
3772 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3773 check_header dispatch/dispatch.h &&
3774 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3777 die "Native MSYS builds are discouraged, please use the MINGW environment."
3780 if test $target_os = "mingw32ce"; then
3786 if enabled x86_64; then
3787 LIBTARGET="i386:x86-64"
3788 elif enabled arm; then
3791 check_ldflags -Wl,--nxcompat
3792 check_ldflags -Wl,--dynamicbase
3793 shlibdir_default="$bindir_default"
3796 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3797 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3798 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3799 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3801 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3802 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3803 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3805 dlltool="${cross_prefix}dlltool"
3811 if enabled shared; then
3812 # Link to the import library instead of the normal static library
3815 # Cannot build both shared and static libs with MSVC or icl.
3818 shlibdir_default="$bindir_default"
3821 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3822 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3823 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3824 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3826 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3827 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3828 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3835 shlibdir_default="$bindir_default"
3838 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3839 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3840 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3842 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3843 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3847 *-dos|freedos|opendos)
3848 network_extralibs="-lsocket"
3851 add_cppflags -U__STRICT_ANSI__
3855 enable section_data_rel_ro
3859 ranlib="echo ignoring ranlib"
3864 add_cppflags -D_GNU_SOURCE
3865 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3866 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3870 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3871 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3872 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3873 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3874 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3875 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3876 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3877 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3878 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3879 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3883 add_cppflags -D_BSD_SOURCE
3888 add_cppflags -D_QNX_SOURCE
3889 network_extralibs="-lsocket"
3894 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3895 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3896 add_ldflags -Wl,--target1-abs,--no-undefined \
3897 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3898 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3899 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3900 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3901 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3904 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3909 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3910 -D_REENTRANT_SOURCE \
3911 -D_RESEARCH_SOURCE \
3914 add_compat strtod.o strtod=avpriv_strtod
3915 network_extralibs='-lbsd'
3916 exeobjs=compat/plan9/main.o
3922 die "Unknown OS '$target_os'."
3926 # determine libc flavour
3931 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3932 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3933 eval ${pfx}libc_type=uclibc
3934 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3935 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3936 eval ${pfx}libc_type=glibc
3937 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3938 # MinGW headers can be installed on Cygwin, so check for newlib first.
3939 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3940 eval ${pfx}libc_type=newlib
3941 add_${pfx}cppflags -U__STRICT_ANSI__
3942 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3943 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3944 eval ${pfx}libc_type=mingw64
3945 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3946 eval test \$${pfx_no_}cc_type = "gcc" &&
3947 add_${pfx}cppflags -D__printf__=__gnu_printf__
3948 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3949 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3950 eval ${pfx}libc_type=mingw32
3951 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3952 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3953 die "ERROR: MinGW32 runtime version must be >= 3.15."
3954 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3955 eval test \$${pfx_no_}cc_type = "gcc" &&
3956 add_${pfx}cppflags -D__printf__=__gnu_printf__
3957 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3958 eval ${pfx}libc_type=msvcrt
3959 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3960 if [ "$pfx" = host_ ]; then
3961 add_host_cppflags -Dsnprintf=_snprintf
3963 add_compat strtod.o strtod=avpriv_strtod
3964 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3965 _snprintf=avpriv_snprintf \
3966 vsnprintf=avpriv_vsnprintf
3969 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3970 # 0x601 by default unless something else is set by the user.
3971 # This can easily lead to us detecting functions only present
3972 # in such new versions and producing binaries requiring windows 7.0.
3973 # Therefore explicitly set the default to XP unless the user has
3974 # set something else on the command line.
3975 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3976 # family. For these cases, configure is free to use any functions
3977 # found in the SDK headers by default. (Alternatively, we could force
3978 # _WIN32_WINNT to 0x0602 in that case.)
3979 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3980 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3981 #ifdef WINAPI_FAMILY
3982 #include <winapifamily.h>
3983 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3988 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3989 eval ${pfx}libc_type=klibc
3990 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3991 eval ${pfx}libc_type=bionic
3992 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3993 eval ${pfx}libc_type=solaris
3994 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3996 eval ${pfx}libc_type=default
3997 add_${pfx}cppflags -D_DEFAULT_SOURCE
4002 test -n "$libc_type" && enable libc_$libc_type
4004 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4008 add_compat strtod.o strtod=avpriv_strtod
4012 # hacks for compiler/libc/os combinations
4014 if enabled_all tms470 libc_glibc; then
4015 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4016 add_cppflags -D__USER_LABEL_PREFIX__=
4017 add_cppflags -D__builtin_memset=memset
4018 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4019 add_cflags -pds=48 # incompatible redefinition of macro
4022 if enabled_all ccc libc_glibc; then
4023 add_ldflags -Wl,-z,now # calls to libots crash without this
4026 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4027 add_cppflags '-I\$(SRC_PATH)/compat/float'
4030 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4033 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4035 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4037 set_default $PATHS_LIST
4040 # we need to build at least one lib type
4041 if ! enabled_any static shared; then
4043 At least one library type must be built.
4044 Specify --enable-static to build the static libraries or --enable-shared to
4045 build the shared libraries as well. To only build the shared libraries specify
4046 --disable-static in addition to --enable-shared.
4051 die_license_disabled() {
4052 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4055 die_license_disabled gpl libcdio
4056 die_license_disabled gpl libx264
4057 die_license_disabled gpl libx265
4058 die_license_disabled gpl libxavs
4059 die_license_disabled gpl libxvid
4060 die_license_disabled gpl x11grab
4062 die_license_disabled nonfree cuda
4063 die_license_disabled nonfree libfaac
4064 die_license_disabled nonfree libfdk_aac
4065 die_license_disabled nonfree libnpp
4066 die_license_disabled nonfree nvenc
4067 die_license_disabled nonfree openssl
4069 die_license_disabled version3 libopencore_amrnb
4070 die_license_disabled version3 libopencore_amrwb
4071 die_license_disabled version3 libvo_aacenc
4072 die_license_disabled version3 libvo_amrwbenc
4074 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4076 disabled optimizations || check_cflags -fomit-frame-pointer
4079 disabled pic && return
4082 case "$target_os" in
4092 enabled pic && enable_weak_pic
4094 check_cc <<EOF || die "Symbol mangling check failed."
4097 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4098 extern_prefix=${sym%%ff_extern*}
4100 check_cc <<EOF && enable_weak inline_asm
4101 void foo(void) { __asm__ volatile ("" ::); }
4105 for restrict_keyword in restrict __restrict__ __restrict; do
4106 check_cc <<EOF && _restrict=$restrict_keyword && break
4107 void foo(char * $restrict_keyword p);
4111 check_cc <<EOF && enable pragma_deprecated
4112 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4115 check_cc <<EOF && enable attribute_packed
4116 struct { int x; } __attribute__((packed)) x;
4119 check_cc <<EOF && enable attribute_may_alias
4120 union { int x; } __attribute__((may_alias)) x;
4123 check_cc <<EOF || die "endian test failed"
4124 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4126 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4129 log "check_gas using '$as' as AS"
4130 # :vararg is used on aarch64, arm and ppc altivec
4131 check_as <<EOF || return 1
4132 .macro m n, y:vararg=0
4137 # .altmacro is only used in arm asm
4138 ! enabled arm || check_as <<EOF || return 1
4145 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4147 enabled_any arm aarch64 && nogas=die
4148 enabled_all ppc altivec && nogas=warn
4152 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4153 gcc) gaspp_as_type=gas ;;
4154 *) gaspp_as_type=$as_type ;;
4157 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4159 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4160 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4162 if ! check_gas ; then
4165 $nogas "GNU assembler not found, install/update gas-preprocessor"
4168 check_as <<EOF && enable as_func
4174 check_inline_asm inline_asm_labels '"1:\n"'
4176 if enabled aarch64; then
4177 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4178 # internal assembler in clang 3.3 does not support this instruction
4179 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4180 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4182 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4184 elif enabled alpha; then
4188 elif enabled arm; then
4190 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4191 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4192 enabled thumb && check_cflags -mthumb || check_cflags -marm
4194 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4196 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4198 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4199 case "${cross_prefix:-$cc}" in
4200 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4201 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4202 __asm__ (".eabi_attribute 28, 1");
4203 int main(void) { return 0; }
4206 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4209 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4210 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4211 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4212 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4213 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4214 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4216 [ $target_os = linux ] || [ $target_os = android ] ||
4217 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4220 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4222 check_as <<EOF && enable as_dn_directive
4227 # llvm's integrated assembler supports .object_arch from llvm 3.5
4228 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4232 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4234 elif enabled mips; then
4236 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4238 # make sure that only an instruction set is enabled
4239 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4241 if enabled mips64; then
4242 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4243 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4244 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4246 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4247 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4248 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4251 elif enabled parisc; then
4253 if enabled gcc; then
4254 case $($cc -dumpversion) in
4255 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4259 elif enabled ppc; then
4261 enable local_aligned_8 local_aligned_16
4263 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4264 check_inline_asm ibm_asm '"add 0, 0, 0"'
4265 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4266 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4268 # AltiVec flags: The FSF version of GCC differs from the Apple version
4269 if enabled altivec; then
4270 check_cflags -maltivec -mabi=altivec &&
4271 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4272 check_cflags -faltivec
4274 # check if our compiler supports Motorola AltiVec C API
4275 check_cc <<EOF || disable altivec
4278 vector signed int v1 = (vector signed int) { 0 };
4279 vector signed int v2 = (vector signed int) { 1 };
4280 v1 = vec_add(v1, v2);
4285 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4288 if enabled vsx; then
4289 check_cflags -mvsx &&
4290 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4293 if enabled power8; then
4294 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4297 elif enabled x86; then
4299 check_builtin rdtsc intrin.h "__rdtsc()"
4300 check_builtin mm_empty mmintrin.h "_mm_empty()"
4302 enable local_aligned_8 local_aligned_16
4304 # check whether EBP is available on x86
4305 # As 'i' is stored on the stack, this program will crash
4306 # if the base pointer is used to access it because the
4307 # base pointer is cleared in the inline assembly code.
4308 check_exec_crash <<EOF && enable ebp_available
4310 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4314 # check whether EBX is available on x86
4315 check_inline_asm ebx_available '""::"b"(0)' &&
4316 check_inline_asm ebx_available '"":::"%ebx"'
4318 # check whether xmm clobbers are supported
4319 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4321 # check whether binutils is new enough to compile SSSE3/MMXEXT
4322 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4323 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4325 if ! disabled_any asm mmx yasm; then
4326 if check_cmd $yasmexe --version; then
4327 enabled x86_64 && yasm_extra="-m amd64"
4328 yasm_debug="-g dwarf2"
4329 elif check_cmd nasm -v; then
4331 yasm_debug="-g -F dwarf"
4332 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4335 YASMFLAGS="-f $objformat $yasm_extra"
4336 enabled pic && append YASMFLAGS "-DPIC"
4337 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4338 case "$objformat" in
4339 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4342 check_yasm "movbe ecx, [5]" && enable yasm ||
4343 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4344 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4345 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4346 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4347 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4348 check_yasm "CPU amdnop" || disable cpunop
4352 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4359 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4361 check_ldflags -Wl,--as-needed
4363 if check_func dlopen; then
4365 elif check_func dlopen -ldl; then
4369 if ! disabled network; then
4370 check_func getaddrinfo $network_extralibs
4371 check_func inet_aton $network_extralibs
4373 check_type netdb.h "struct addrinfo"
4374 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4375 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4376 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4377 check_type poll.h "struct pollfd"
4378 check_type netinet/sctp.h "struct sctp_event_subscribe"
4379 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4380 check_type netinet/in.h "struct sockaddr_in6"
4381 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4382 check_type "sys/types.h sys/socket.h" socklen_t
4384 # Prefer arpa/inet.h over winsock2
4385 if check_header arpa/inet.h ; then
4386 check_func closesocket
4387 elif check_header winsock2.h ; then
4388 check_func_headers winsock2.h closesocket -lws2 &&
4389 network_extralibs="-lws2" ||
4390 { check_func_headers winsock2.h closesocket -lws2_32 &&
4391 network_extralibs="-lws2_32"; } || disable winsock2_h network
4392 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4394 check_type ws2tcpip.h socklen_t
4395 check_type ws2tcpip.h "struct addrinfo"
4396 check_type ws2tcpip.h "struct group_source_req"
4397 check_type ws2tcpip.h "struct ip_mreq_source"
4398 check_type ws2tcpip.h "struct ipv6_mreq"
4399 check_type winsock2.h "struct pollfd"
4400 check_struct winsock2.h "struct sockaddr" sa_len
4401 check_type ws2tcpip.h "struct sockaddr_in6"
4402 check_type ws2tcpip.h "struct sockaddr_storage"
4408 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4409 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4410 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4411 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4413 case "$custom_allocator" in
4415 # jemalloc by default does not use a prefix
4416 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4419 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4424 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4425 check_func ${malloc_prefix}memalign && enable memalign
4426 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4428 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4429 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4433 check_func gethrtime
4435 check_func getrusage
4436 check_func gettimeofday
4439 check_func localtime_r
4440 check_func mach_absolute_time
4444 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4445 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4446 check_func sched_getaffinity
4447 check_func setrlimit
4448 check_func strerror_r
4453 check_func_headers io.h setmode
4454 check_func_headers stdlib.h getenv
4456 check_func_headers windows.h CoTaskMemFree -lole32
4457 check_func_headers windows.h GetProcessAffinityMask
4458 check_func_headers windows.h GetProcessTimes
4459 check_func_headers windows.h GetSystemTimeAsFileTime
4460 check_func_headers windows.h LoadLibrary
4461 check_func_headers windows.h MapViewOfFile
4462 check_func_headers windows.h SetConsoleTextAttribute
4463 check_func_headers windows.h Sleep
4464 check_func_headers windows.h VirtualAlloc
4465 check_struct windows.h "CONDITION_VARIABLE" Ptr
4467 check_header direct.h
4468 check_header dlfcn.h
4469 check_header d3d11.h
4471 check_header dxva2api.h
4473 check_header mach/mach_time.h
4474 check_header malloc.h
4476 check_header sys/mman.h
4477 check_header sys/param.h
4478 check_header sys/resource.h
4479 check_header sys/select.h
4480 check_header sys/time.h
4481 check_header sys/un.h
4482 check_header unistd.h
4483 check_header valgrind/valgrind.h
4484 check_header vdpau/vdpau.h
4485 check_header vdpau/vdpau_x11.h
4486 check_header VideoDecodeAcceleration/VDADecoder.h
4487 check_header windows.h
4488 check_header X11/extensions/XvMClib.h
4490 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4491 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4492 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4494 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4496 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4497 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4498 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4500 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4501 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4502 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4503 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4505 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4507 if ! disabled w32threads && ! enabled pthreads; then
4508 check_func_headers "windows.h process.h" _beginthreadex &&
4509 enable w32threads || disable w32threads
4512 # check for some common methods of building with pthread support
4513 # do this before the optional library checks as some of them require pthreads
4514 if ! disabled pthreads && ! enabled w32threads; then
4516 if check_func pthread_join -pthread; then
4518 add_extralibs -pthread
4519 elif check_func pthread_join -pthreads; then
4520 add_cflags -pthreads
4521 add_extralibs -pthreads
4522 elif check_func pthread_join -lpthreadGC2; then
4523 add_extralibs -lpthreadGC2
4524 elif check_lib pthread.h pthread_join -lpthread; then
4526 elif ! check_func pthread_join; then
4532 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
4534 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4535 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4537 check_lib math.h sin -lm && LIBM="-lm"
4538 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4544 for func in $MATH_FUNCS; do
4545 eval check_mathfunc $func \${${func}_args:-1}
4548 # these are off by default, so fail if requested and not available
4549 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4550 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4551 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4552 enabled cuda && check_lib cuda.h cuInit -lcuda
4553 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4554 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4555 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4556 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4557 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4558 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4559 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4560 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4561 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4562 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4563 done || die "ERROR: libgsm not found"; }
4564 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4565 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4566 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4567 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4568 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4569 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4570 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4571 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4572 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4573 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4574 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4575 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4576 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4577 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4578 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4579 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4580 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4581 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4582 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4583 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4584 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4585 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4586 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4587 enabled libvpx_vp8_decoder && {
4588 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4589 disable libvpx_vp8_decoder;
4591 enabled libvpx_vp8_encoder && {
4592 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4593 disable libvpx_vp8_encoder;
4595 enabled libvpx_vp9_decoder && {
4596 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4597 disable libvpx_vp9_decoder;
4599 enabled libvpx_vp9_encoder && {
4600 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4601 disable libvpx_vp9_encoder;
4603 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4604 die "libvpx enabled but no supported decoders found"
4607 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4608 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4609 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4610 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4611 die "ERROR: libx264 version must be >= 0.118."; } &&
4612 { check_cpp_condition x264.h "X264_MPEG2" &&
4614 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4615 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4616 die "ERROR: libx265 version must be >= 57."; }
4617 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4618 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4619 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4620 { ! enabled cross_compile && {
4621 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4622 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4623 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4624 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4625 die "ERROR: mmal not found"; }
4626 enabled omx_rpi && enable omx
4627 enabled omx && { check_header OMX_Core.h ||
4628 { ! enabled cross_compile && enabled omx_rpi && {
4629 add_cflags -isystem/opt/vc/include/IL ; }
4630 check_header OMX_Core.h ; } ||
4631 die "ERROR: OpenMAX IL headers not found"; }
4632 enabled openssl && { check_pkg_config openssl openssl/ssl.h SSL_library_init && {
4633 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4634 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4635 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4636 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4637 die "ERROR: openssl not found"; }
4639 if enabled gnutls; then
4640 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4641 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4645 if enabled libdc1394; then
4646 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4647 enable libdc1394_2; } ||
4648 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4649 enable libdc1394_1; } ||
4650 die "ERROR: No version of libdc1394 found "
4653 if enabled nvenc; then
4654 enabled cuda || check_header cuda.h || die "ERROR: cuda.h not found."
4655 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."
4656 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4657 die "ERROR: NVENC API version 4 or older is not supported"
4660 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4661 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4662 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4666 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4667 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4669 check_header linux/fb.h
4670 check_header linux/videodev2.h
4671 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4673 check_header AVFoundation/AVFoundation.h &&
4674 check_objcflags -fobjc-arc &&
4675 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4676 disable AVFoundation_AVFoundation_h
4678 check_header sys/videoio.h
4680 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4681 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4682 # w32api 3.12 had it defined wrong
4683 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4685 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4686 { check_header dev/bktr/ioctl_meteor.h &&
4687 check_header dev/bktr/ioctl_bt848.h; } ||
4688 { check_header machine/ioctl_meteor.h &&
4689 check_header machine/ioctl_bt848.h; } ||
4690 { check_header dev/video/meteor/ioctl_meteor.h &&
4691 check_header dev/video/bktr/ioctl_bt848.h; } ||
4692 check_header dev/ic/bt8xx.h
4694 check_header sndio.h
4695 check_header sys/soundcard.h
4696 check_header soundcard.h
4698 enabled_any alsa_indev alsa_outdev &&
4699 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4701 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4702 check_func jack_port_get_latency_range -ljack
4704 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4706 if enabled libcdio; then
4707 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4708 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4709 die "ERROR: No usable libcdio/cdparanoia found"
4712 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4714 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4715 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4716 enabled libxcb && die "ERROR: libxcb not found";
4717 } && disable x11grab && enable libxcb
4719 disabled libxcb_shm ||
4720 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4721 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4722 } && check_header sys/shm.h && enable libxcb_shm
4724 disabled libxcb_xfixes ||
4725 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4726 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4727 } && enable libxcb_xfixes
4729 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4730 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4733 if enabled x11grab; then
4734 enabled xlib || die "ERROR: Xlib not found"
4735 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4736 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4740 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4743 if enabled vaapi ; then
4745 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4748 check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
4753 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4756 enabled vdpau && enabled xlib &&
4757 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4758 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4761 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4763 # add some useful compiler flags if supported
4764 check_cflags -Wdeclaration-after-statement
4766 check_cflags -Wdisabled-optimization
4767 check_cflags -Wpointer-arith
4768 check_cflags -Wredundant-decls
4769 check_cflags -Wwrite-strings
4770 check_cflags -Wtype-limits
4771 check_cflags -Wundef
4772 check_cflags -Wmissing-prototypes
4773 check_cflags -Wstrict-prototypes
4774 enabled extra_warnings && check_cflags -Winline
4775 enabled extra_warnings && check_cflags -Wcast-qual
4777 check_disable_warning(){
4778 warning_flag=-W${1#-Wno-}
4779 test_cflags $warning_flag && add_cflags $1
4782 check_disable_warning -Wno-parentheses
4783 check_disable_warning -Wno-switch
4784 check_disable_warning -Wno-format-zero-length
4785 check_disable_warning -Wno-pointer-sign
4787 # add some linker flags
4788 check_ldflags -Wl,--warn-common
4789 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4790 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4791 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4793 # add some strip flags
4794 # -wN '..@*' is more selective than -x, but not available everywhere.
4795 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4797 enabled neon_clobber_test &&
4798 check_ldflags -Wl,--wrap,avcodec_open2 \
4799 -Wl,--wrap,avcodec_decode_audio4 \
4800 -Wl,--wrap,avcodec_decode_video2 \
4801 -Wl,--wrap,avcodec_decode_subtitle2 \
4802 -Wl,--wrap,avcodec_encode_audio2 \
4803 -Wl,--wrap,avcodec_encode_video2 \
4804 -Wl,--wrap,avcodec_encode_subtitle \
4805 -Wl,--wrap,avresample_convert ||
4806 disable neon_clobber_test
4808 enabled xmm_clobber_test &&
4809 check_ldflags -Wl,--wrap,avcodec_open2 \
4810 -Wl,--wrap,avcodec_decode_audio4 \
4811 -Wl,--wrap,avcodec_decode_video2 \
4812 -Wl,--wrap,avcodec_decode_subtitle2 \
4813 -Wl,--wrap,avcodec_encode_audio2 \
4814 -Wl,--wrap,avcodec_encode_video2 \
4815 -Wl,--wrap,avcodec_encode_subtitle \
4816 -Wl,--wrap,avresample_convert \
4817 -Wl,--wrap,sws_scale ||
4818 disable xmm_clobber_test
4820 echo "X { local: *; };" > $TMPV
4821 if test_ldflags -Wl,--version-script,$TMPV; then
4822 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4823 elif test_ldflags -Wl,-M,$TMPV; then
4824 append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
4827 check_cc <<EOF && enable symver_asm_label
4828 void ff_foo(void) __asm__ ("av_foo@VERSION");
4829 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4831 check_cc <<EOF && enable symver_gnu_asm
4832 __asm__(".symver ff_foo,av_foo@VERSION");
4833 void ff_foo(void) {}
4836 if [ -z "$optflags" ]; then
4837 if enabled small; then
4838 optflags=$cflags_size
4839 elif enabled optimizations; then
4840 optflags=$cflags_speed
4842 optflags=$cflags_noopt
4848 enabled lto && check_ldflags "$@"
4852 if enabled lto; then
4853 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4855 check_ldflags -flto $cpuflags
4858 check_optflags $optflags
4859 check_optflags -fno-math-errno
4860 check_optflags -fno-signed-zeros
4862 if enabled icc; then
4863 # Just warnings, no remarks
4865 # -wd: Disable following warnings
4866 # 144, 167, 556: -Wno-pointer-sign
4867 # 1292: attribute "foo" ignored
4868 # 1419: external declaration in primary source file
4869 # 10006: ignoring unknown option -fno-signed-zeros
4870 # 10148: ignoring unknown option -Wno-parentheses
4871 # 10156: ignoring option '-W'; no argument required
4872 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4873 # 11030: Warning unknown option --as-needed
4874 # 10156: ignoring option '-export'; no argument required
4875 check_ldflags -wd10156,11030
4876 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4877 enable ebp_available
4878 if enabled x86_32; then
4879 icc_version=$($cc -dumpversion)
4880 test ${icc_version%%.*} -ge 11 &&
4881 check_cflags -falign-stack=maintain-16-byte ||
4882 disable aligned_stack
4884 elif enabled ccc; then
4885 # disable some annoying warnings
4886 add_cflags -msg_disable bitnotint
4887 add_cflags -msg_disable mixfuncvoid
4888 add_cflags -msg_disable nonstandcast
4889 add_cflags -msg_disable unsupieee
4890 elif enabled gcc; then
4891 check_optflags -fno-tree-vectorize
4892 check_cflags -Werror=implicit-function-declaration
4893 check_cflags -Werror=missing-prototypes
4894 check_cflags -Werror=return-type
4895 check_cflags -Werror=declaration-after-statement
4896 check_cflags -Werror=vla
4897 check_cflags -Werror=format-security
4898 check_cflags -fdiagnostics-color=auto
4899 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4900 elif enabled llvm_gcc; then
4901 check_cflags -mllvm -stack-alignment=16
4902 elif enabled clang; then
4903 check_cflags -mllvm -stack-alignment=16
4904 check_cflags -Qunused-arguments
4905 check_cflags -Werror=implicit-function-declaration
4906 check_cflags -Werror=missing-prototypes
4907 check_cflags -Werror=return-type
4908 elif enabled cparser; then
4909 add_cflags -Wno-missing-variable-declarations
4910 add_cflags -Wno-empty-statement
4911 elif enabled armcc; then
4912 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4913 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4914 # 2523: use of inline assembly is deprecated
4915 add_cflags -W${armcc_opt},--diag_suppress=2523
4916 add_cflags -W${armcc_opt},--diag_suppress=1207
4917 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4918 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4919 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4920 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4921 elif enabled tms470; then
4922 add_cflags -pds=824 -pds=837
4924 elif enabled pathscale; then
4925 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4926 elif enabled_any msvc icl; then
4927 enabled x86_32 && disable aligned_stack
4928 enabled_all x86_32 debug && add_cflags -Oy-
4929 enabled debug && add_ldflags -debug
4930 enable pragma_deprecated
4931 if enabled icl; then
4932 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4933 # (correctly) on icl 13.x.
4934 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4935 add_cflags -Qansi-alias
4936 # icl will pass the inline asm tests but inline asm is currently
4937 # not supported (build will fail)
4940 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4941 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4942 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4943 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4944 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4945 # MSVC 2013 and newer can handle it fine.
4946 # If this declspec fails, force including stdlib.h before the restrict redefinition
4947 # happens in config.h.
4948 if [ $_restrict != restrict ]; then
4949 check_cc <<EOF || add_cflags -FIstdlib.h
4950 __declspec($_restrict) void* foo(int);
4953 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4956 for pfx in "" host_; do
4957 varname=${pfx%_}cc_type
4958 eval "type=\$$varname"
4959 if [ $type = "msvc" ]; then
4960 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4961 static inline int foo(int a) { return a; }
4968 add_asflags -Qunused-arguments
4974 check_ldflags -Qunused-arguments
4980 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4983 add_cppflags -Dmain=plan9_main
4987 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4989 check_deps $CONFIG_LIST \
4994 enabled_all dxva2 CoTaskMemFree &&
4995 prepend avconv_libs $($ldflags_filter "-lole32") &&
4998 ! enabled_any memalign posix_memalign aligned_malloc &&
4999 enabled simd_align_16 && enable memalign_hack
5001 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5003 for thread in $THREADS_LIST; do
5004 if enabled $thread; then
5005 test -n "$thread_type" &&
5006 die "ERROR: Only one thread type must be selected." ||
5007 thread_type="$thread"
5011 enabled zlib && add_cppflags -DZLIB_CONST
5013 # conditional library dependencies, in linking order
5014 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5015 enabled resample_filter && prepend avfilter_deps "avresample"
5016 enabled scale_filter && prepend avfilter_deps "swscale"
5018 enabled opus_decoder && prepend avcodec_deps "avresample"
5022 eval "deps=\$$lib_deps"
5023 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5027 map 'expand_deps $v' $LIBRARY_LIST
5029 echo "install prefix $prefix"
5030 echo "source path $source_path"
5031 echo "C compiler $cc"
5032 echo "C library $libc_type"
5033 if test "$host_cc" != "$cc"; then
5034 echo "host C compiler $host_cc"
5035 echo "host C library $host_libc_type"
5037 echo "ARCH $arch ($cpu)"
5038 if test "$build_suffix" != ""; then
5039 echo "build suffix $build_suffix"
5041 if test "$extra_version" != ""; then
5042 echo "version string suffix $extra_version"
5044 echo "big-endian ${bigendian-no}"
5045 echo "runtime cpu detection ${runtime_cpudetect-no}"
5046 if enabled x86; then
5047 echo "${yasmexe} ${yasm-no}"
5048 echo "MMX enabled ${mmx-no}"
5049 echo "MMXEXT enabled ${mmxext-no}"
5050 echo "3DNow! enabled ${amd3dnow-no}"
5051 echo "3DNow! extended enabled ${amd3dnowext-no}"
5052 echo "SSE enabled ${sse-no}"
5053 echo "SSSE3 enabled ${ssse3-no}"
5054 echo "AVX enabled ${avx-no}"
5055 echo "XOP enabled ${xop-no}"
5056 echo "FMA3 enabled ${fma3-no}"
5057 echo "FMA4 enabled ${fma4-no}"
5058 echo "i686 features enabled ${i686-no}"
5059 echo "CMOV is fast ${fast_cmov-no}"
5060 echo "EBX available ${ebx_available-no}"
5061 echo "EBP available ${ebp_available-no}"
5063 if enabled aarch64; then
5064 echo "NEON enabled ${neon-no}"
5065 echo "VFP enabled ${vfp-no}"
5067 if enabled arm; then
5068 echo "ARMv5TE enabled ${armv5te-no}"
5069 echo "ARMv6 enabled ${armv6-no}"
5070 echo "ARMv6T2 enabled ${armv6t2-no}"
5071 echo "VFP enabled ${vfp-no}"
5072 echo "NEON enabled ${neon-no}"
5074 if enabled ppc; then
5075 echo "AltiVec enabled ${altivec-no}"
5076 echo "VSX enabled ${vsx-no}"
5077 echo "POWER8 enabled ${power8-no}"
5078 echo "PPC 4xx optimizations ${ppc4xx-no}"
5079 echo "dcbzl available ${dcbzl-no}"
5081 echo "debug symbols ${debug-no}"
5082 echo "optimize for size ${small-no}"
5083 echo "optimizations ${optimizations-no}"
5084 echo "static ${static-no}"
5085 echo "shared ${shared-no}"
5086 echo "new filter support ${avfilter-no}"
5087 echo "network support ${network-no}"
5088 echo "threading support ${thread_type-no}"
5089 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5090 echo "SDL support ${sdl-no}"
5091 test -n "$random_seed" &&
5092 echo "random seed ${random_seed}"
5095 echo "External libraries:"
5096 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5100 print_enabled '' $LIBRARY_LIST | print_3_columns
5103 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5104 echo "Enabled ${type}s:"
5105 eval list=\$$(toupper $type)_LIST
5106 print_enabled '_*' $list | print_3_columns
5110 echo "Enabled Hardware-accelerated codecs:"
5111 print_enabled '' $HW_CODECS_LIST | print_3_columns
5114 license="LGPL version 2.1 or later"
5115 if enabled nonfree; then
5116 license="nonfree and unredistributable"
5117 elif enabled gplv3; then
5118 license="GPL version 3 or later"
5119 elif enabled lgplv3; then
5120 license="LGPL version 3 or later"
5121 elif enabled gpl; then
5122 license="GPL version 2 or later"
5125 echo "License: $license"
5127 echo "Creating config.mak and config.h..."
5129 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5131 config_files="$TMPH config.mak"
5133 cat > config.mak <<EOF
5134 # Automatically generated by configure - do not modify!
5135 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5137 LIBDIR=\$(DESTDIR)$libdir
5138 SHLIBDIR=\$(DESTDIR)$shlibdir
5139 INCDIR=\$(DESTDIR)$incdir
5140 BINDIR=\$(DESTDIR)$bindir
5141 DATADIR=\$(DESTDIR)$datadir
5142 DOCDIR=\$(DESTDIR)$docdir
5143 MANDIR=\$(DESTDIR)$mandir
5144 SRC_PATH=$source_path
5147 INTRINSICS=$intrinsics
5154 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5156 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5167 OBJCFLAGS=$OBJCFLAGS
5182 LDEXEFLAGS=$LDEXEFLAGS
5183 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5184 STRIPFLAGS=$STRIPFLAGS
5185 YASMFLAGS=$YASMFLAGS
5186 BUILDSUF=$build_suffix
5194 EXTRA_VERSION=$extra_version
5196 CCDEP_FLAGS=$CCDEP_FLAGS
5198 ASDEP_FLAGS=$ASDEP_FLAGS
5199 CC_DEPFLAGS=$CC_DEPFLAGS
5200 AS_DEPFLAGS=$AS_DEPFLAGS
5203 HOSTCFLAGS=$host_cflags
5204 HOSTCPPFLAGS=$host_cppflags
5205 HOSTEXESUF=$HOSTEXESUF
5206 HOSTLDFLAGS=$host_ldflags
5209 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5210 HOSTCCDEP=$HOSTCCDEP
5211 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5212 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5216 TARGET_EXEC=$target_exec $target_exec_args
5217 TARGET_PATH=$target_path
5218 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5219 CFLAGS-avplay=$sdl_cflags
5220 ZLIB=$($ldflags_filter -lz)
5221 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5222 EXTRALIBS=$extralibs
5223 COMPAT_OBJS=$compat_objs
5226 LIBTARGET=${LIBTARGET}
5227 SLIBNAME=${SLIBNAME}
5228 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5229 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5230 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5231 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5232 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5233 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5234 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5235 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5236 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5241 name=$(toupper $lcname)
5242 file=$source_path/$lcname/version.h
5243 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5244 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5245 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5246 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5247 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5250 map 'get_version $v' $LIBRARY_LIST
5252 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5254 print_program_libs(){
5255 eval "program_libs=\$${1}_libs"
5256 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5259 map 'print_program_libs $v' $PROGRAM_LIST
5262 /* Automatically generated by configure - do not modify! */
5263 #ifndef LIBAV_CONFIG_H
5264 #define LIBAV_CONFIG_H
5265 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5266 #define LIBAV_LICENSE "$(c_escape $license)"
5267 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5268 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5269 #define restrict $_restrict
5270 #define EXTERN_PREFIX "${extern_prefix}"
5271 #define EXTERN_ASM ${extern_prefix}
5272 #define SLIBSUF "$SLIBSUF"
5275 test -n "$malloc_prefix" &&
5276 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5278 if enabled yasm; then
5279 append config_files $TMPASM
5283 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5285 print_config ARCH_ "$config_files" $ARCH_LIST
5286 print_config HAVE_ "$config_files" $HAVE_LIST
5287 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5291 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5293 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5294 cp_if_changed $TMPH config.h
5297 enabled yasm && cp_if_changed $TMPASM config.asm
5300 /* Generated by ffconf */
5301 #ifndef AVUTIL_AVCONFIG_H
5302 #define AVUTIL_AVCONFIG_H
5305 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5307 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5309 cp_if_changed $TMPH libavutil/avconfig.h
5311 test -n "$WARNINGS" && printf "\n$WARNINGS"
5313 # generate the lists of enabled components
5314 print_enabled_components(){
5319 echo "static const $struct_name *$name[] = {" > $TMPH
5321 enabled $c && printf " &ff_%s,\n" $c >> $TMPH
5323 echo " NULL };" >> $TMPH
5324 cp_if_changed $TMPH $file
5327 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5328 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5330 # build pkg-config files
5333 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5336 pkgconfig_generate(){
5338 shortname=${name#lib}${build_suffix}
5342 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5343 requires=${requires%, }
5344 enabled ${name#lib} || return 0
5346 cat <<EOF > $name/$name.pc
5348 exec_prefix=\${prefix}
5353 Description: $comment
5355 Requires: $(enabled shared || echo $requires)
5356 Requires.private: $(enabled shared && echo $requires)
5358 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5359 Libs.private: $(enabled shared && echo $libs)
5360 Cflags: -I\${includedir}
5362 cat <<EOF > $name/$name-uninstalled.pc
5365 libdir=\${pcfiledir}
5366 includedir=${source_path}
5369 Description: $comment
5373 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5374 Cflags: -I\${includedir}
5378 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5379 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5380 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5381 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5382 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5383 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5384 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"