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 Individual component options:
136 --disable-everything disable all components listed below
137 --disable-encoder=NAME disable encoder NAME
138 --enable-encoder=NAME enable encoder NAME
139 --disable-encoders disable all encoders
140 --disable-decoder=NAME disable decoder NAME
141 --enable-decoder=NAME enable decoder NAME
142 --disable-decoders disable all decoders
143 --disable-hwaccel=NAME disable hwaccel NAME
144 --enable-hwaccel=NAME enable hwaccel NAME
145 --disable-hwaccels disable all hwaccels
146 --disable-muxer=NAME disable muxer NAME
147 --enable-muxer=NAME enable muxer NAME
148 --disable-muxers disable all muxers
149 --disable-demuxer=NAME disable demuxer NAME
150 --enable-demuxer=NAME enable demuxer NAME
151 --disable-demuxers disable all demuxers
152 --enable-parser=NAME enable parser NAME
153 --disable-parser=NAME disable parser NAME
154 --disable-parsers disable all parsers
155 --enable-bsf=NAME enable bitstream filter NAME
156 --disable-bsf=NAME disable bitstream filter NAME
157 --disable-bsfs disable all bitstream filters
158 --enable-protocol=NAME enable protocol NAME
159 --disable-protocol=NAME disable protocol NAME
160 --disable-protocols disable all protocols
161 --enable-indev=NAME enable input device NAME
162 --disable-indev=NAME disable input device NAME
163 --disable-indevs disable input devices
164 --enable-outdev=NAME enable output device NAME
165 --disable-outdev=NAME disable output device NAME
166 --disable-outdevs disable output devices
167 --disable-devices disable all devices
168 --enable-filter=NAME enable filter NAME
169 --disable-filter=NAME disable filter NAME
170 --disable-filters disable all filters
172 External library support:
174 Using any of the following switches will allow Libav to link to the
175 corresponding external library. All the components depending on that library
176 will become enabled, if all their other dependencies are met and they are not
177 explicitly disabled. E.g. --enable-libwavpack will enable linking to
178 libwavpack and allow the libwavpack encoder to be built, unless it is
179 specifically disabled with --disable-encoder=libwavpack.
181 Note that only the system libraries are auto-detected. All the other external
182 libraries must be explicitly enabled.
184 Also note that the following help text describes the purpose of the libraries
185 themselves, not all their features will necessarily be usable by Libav.
187 --enable-avisynth video frameserver
188 --enable-bzlib bzip2 compression [autodetect]
189 --enable-frei0r video filtering plugins
190 --enable-gnutls crypto
191 --enable-libbs2b Bauer stereophonic-to-binaural DSP
192 --enable-libcdio audio CD input
193 --enable-libdc1394 IEEE 1394/Firewire camera input
194 --enable-libdcadec DCA audio decoding
195 --enable-libfaac AAC audio encoding
196 --enable-libfdk-aac AAC audio encoding/decoding
197 --enable-libfontconfig font configuration and management
198 --enable-libfreetype font rendering
199 --enable-libgsm GSM audio encoding/decoding
200 --enable-libilbc ILBC audio encoding/decoding
201 --enable-libkvazaar HEVC video encoding
202 --enable-libmp3lame MP3 audio encoding
203 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
204 --enable-libopencore-amrwb AMR-WB audio decoding
205 --enable-libopencv computer vision
206 --enable-libopenh264 H.264 video encoding/decoding
207 --enable-libopenjpeg JPEG 2000 image encoding/decoding
208 --enable-libopus Opus audio encoding/decoding
209 --enable-libpulse Pulseaudio sound server
210 --enable-librtmp RTMP streaming
211 --enable-libschroedinger Dirac video encoding/decoding
212 --enable-libsnappy snappy compression
213 --enable-libspeex Speex audio encoding/decoding
214 --enable-libtheora Theora video encoding/decoding
215 --enable-libtwolame MP2 audio encoding
216 --enable-libvo-aacenc AAC audio encoding
217 --enable-libvo-amrwbenc AMR-WB audio encoding
218 --enable-libvorbis Vorbis audio encoding/decoding
219 --enable-libvpx VP* video encoding/decoding
220 --enable-libwavpack Wavpack audio encoding/decoding
221 --enable-libwebp WebP image encoding/decoding
222 --enable-libx264 H.264 video encoding
223 --enable-libx265 HEVC video encoding
224 --enable-libxavs Chinese AVS video encoding
225 --enable-libxcb X window system protocol communication
226 --enable-libxcb-shm X11 shm communication [auto]
227 --enable-libxcb-xfixes X11 mouse rendering [auto]
228 --enable-libxvid MPEG-4 ASP video encoding
229 --enable-openssl crypto
230 --enable-x11grab X11 grabbing through xlib (legacy, use xcb instead)
231 --enable-zlib compression [autodetect]
233 The following libraries provide various hardware acceleration features:
234 --enable-cuda Nvidia CUDA (dynamically linked)
235 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
236 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
237 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
238 --enable-libnpp Nvidia CUDA processing
239 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
240 --enable-nvenc Nvidia video encoding
241 --enable-omx OpenMAX IL
242 --enable-omx-rpi OpenMAX IL for Raspberry Pi
243 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
244 --enable-vda Apple Video Decode Acceleration [auto]
245 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
248 --arch=ARCH select architecture [$arch]
249 --cpu=CPU select the minimum required CPU (affects
250 instruction selection, may crash on older CPUs)
251 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
252 --enable-cross-compile assume a cross-compiler is used
253 --sysroot=PATH root of cross-build tree
254 --sysinclude=PATH location of cross-build system headers
255 --target-os=OS compiler targets OS [$target_os]
256 --target-exec=CMD command to run executables on target
257 --target-path=DIR path to view of build directory on target
258 --target-samples=DIR path to samples directory on target
259 --toolchain=NAME set tool defaults according to NAME
261 --ar=AR use archive tool AR [$ar_default]
262 --as=AS use assembler AS [$as_default]
263 --cc=CC use C compiler CC [$cc_default]
264 --objcc=OCC use ObjC compiler OCC [$cc_default]
265 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
266 --ld=LD use linker LD
267 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
268 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
269 --host-cc=HOSTCC use host C compiler HOSTCC
270 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
271 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
272 --host-ld=HOSTLD use host linker HOSTLD
273 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
274 --host-libs=HLIBS use libs HLIBS when linking for host
275 --host-os=OS compiler host OS [$target_os]
276 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
277 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
278 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
279 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
280 --extra-libs=ELIBS add ELIBS [$ELIBS]
281 --extra-version=STRING version string suffix []
282 --optflags=OPTFLAGS override optimization-related compiler flags
283 --build-suffix=SUFFIX library name suffix []
284 --enable-pic build position-independent code
285 --enable-thumb compile for Thumb instruction set
286 --enable-lto use link-time optimization
287 --env="ENV=override" override the environment variables
289 Advanced options (experts only):
290 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
291 --custom-allocator=NAME use a supported custom allocator
292 --disable-symver disable symbol versioning
293 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
294 --disable-safe-bitstream-reader
295 disable buffer boundary checking in bitreaders
296 (faster, but may crash)
297 --enable-memalign-hack emulate memalign, interferes with memory debuggers
298 --enable-sram allow use of on-chip SRAM
300 Optimization options (experts only):
301 --disable-asm disable all assembly optimizations
302 --disable-altivec disable AltiVec optimizations
303 --disable-vsx disable VSX optimizations
304 --disable-power8 disable POWER8 optimizations
305 --disable-amd3dnow disable 3DNow! optimizations
306 --disable-amd3dnowext disable 3DNow! extended optimizations
307 --disable-mmx disable MMX optimizations
308 --disable-mmxext disable MMXEXT optimizations
309 --disable-sse disable SSE optimizations
310 --disable-sse2 disable SSE2 optimizations
311 --disable-sse3 disable SSE3 optimizations
312 --disable-ssse3 disable SSSE3 optimizations
313 --disable-sse4 disable SSE4 optimizations
314 --disable-sse42 disable SSE4.2 optimizations
315 --disable-avx disable AVX optimizations
316 --disable-xop disable XOP optimizations
317 --disable-fma3 disable FMA3 optimizations
318 --disable-fma4 disable FMA4 optimizations
319 --disable-avx2 disable AVX2 optimizations
320 --disable-armv5te disable armv5te optimizations
321 --disable-armv6 disable armv6 optimizations
322 --disable-armv6t2 disable armv6t2 optimizations
323 --disable-vfp disable VFP optimizations
324 --disable-neon disable NEON optimizations
325 --disable-inline-asm disable use of inline assembly
326 --disable-yasm disable use of nasm/yasm assembly
328 Developer options (useful when working on Libav itself):
329 --disable-debug disable debugging symbols
330 --enable-debug=LEVEL set the debug level [$debuglevel]
331 --disable-optimizations disable compiler optimizations
332 --enable-extra-warnings enable more compiler warnings
333 --samples=PATH location of test samples for FATE, if not set use
334 \$LIBAV_SAMPLES at make invocation time.
335 --enable-neon-clobber-test check NEON registers for clobbering (should be
336 used only for debugging purposes)
337 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
338 should be used only for debugging purposes)
339 --enable-random randomly enable/disable components
341 --enable-random=LIST randomly enable/disable specific components or
342 --disable-random=LIST component groups. LIST is a comma-separated list
343 of NAME[:PROB] entries where NAME is a component
344 (group) and PROB the probability associated with
346 --random-seed=VALUE seed value for --enable/disable-random
347 --disable-valgrind-backtrace do not print a backtrace under Valgrind
348 (only applies to --disable-optimizations builds)
350 NOTE: Object files are built at the place where configure is launched.
358 echo "$@" >> $logfile
365 printf '%5s %s\n' "${i}" "${line}"
367 done < $1 >> $logfile
378 WARNINGS="${WARNINGS}WARNING: $*\n"
385 If you think configure made a mistake, make sure you are using the latest
386 version from Git. If the latest version fails, report the problem to the
387 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
389 if disabled logging; then
391 Rerun configure with logging enabled (do not use --disable-logging), and
392 include the log this produces with your report.
396 Include the log file "$logfile" produced by configure as this will help
403 # Avoid locale weirdness, besides we really just want to translate ASCII.
405 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
409 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
413 echo "$*" | sed 's/["\\]/\\\0/g'
417 v=$(echo "$1" | sed "s/'/'\\\\''/g")
418 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
423 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
430 eval "case $v in $pat) echo $v ;; esac"
438 eval "case $v in $pat) ;; *) echo $v ;; esac"
445 for v; do eval $m; done
451 for v; do echo ${v}${suffix}; done
466 eval : \${$var:=$value}
471 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
477 eval $(sanitize_var_name "$var")='$*'
481 eval echo \$$(sanitize_var_name "$1")
486 eval level=\${${pvar}_level:=0}
487 eval ${pvar}_${level}="\$$pvar"
488 eval ${pvar}_level=$(($level+1))
494 eval level=\${${pvar}_level:-0}
495 test $level = 0 && continue
496 eval level=$(($level-1))
497 eval $pvar="\${${pvar}_${level}}"
498 eval ${pvar}_level=$level
499 eval unset ${pvar}_${level}
521 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
527 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
533 enabled $var && continue
534 eval sel="\$${var}_select"
535 eval sgs="\$${var}_suggest"
539 enable_deep_weak $sgs
551 disabled $var && continue
560 test "${1#!}" = "$1" && op== || op=!=
561 eval test "x\$${1#!}" $op "xyes"
565 test "${1#!}" = "$1" && op== || op=!=
566 eval test "x\$${1#!}" $op "xno"
571 enabled $opt || return 1
577 disabled $opt || return 1
583 enabled $opt && return 0
589 disabled $opt && return 0
596 eval : \${$opt:=\$${opt}_default}
604 [ $var = $value ] && return 0
612 enabled ${cfg}_checking && die "Circular dependency for $cfg."
613 disabled ${cfg}_checking && continue
614 enable ${cfg}_checking
617 eval dep_all="\$${cfg}_deps"
618 eval dep_any="\$${cfg}_deps_any"
619 eval dep_sel="\$${cfg}_select"
620 eval dep_sgs="\$${cfg}_suggest"
621 eval dep_ifa="\$${cfg}_if"
622 eval dep_ifn="\$${cfg}_if_any"
624 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
625 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
626 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
628 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
629 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
630 enabled_all $dep_all || disable $cfg
631 enabled_any $dep_any || disable $cfg
632 disabled_any $dep_sel && disable $cfg
634 if enabled $cfg; then
636 enable_deep_weak $dep_sgs
639 disable ${cfg}_checking
648 for cfg in $allopts; do
649 enabled $cfg || continue
650 eval dep_extralibs="\$${cfg}_extralibs"
651 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
659 map 'eval echo "$v \${$v:-no}"' "$@" |
660 awk "BEGIN { split(\"$files\", files) }
662 c = \"$pfx\" toupper(\$1);
668 if (file ~ /\\.h\$/) {
669 printf(\"#define %s %d\\n\", c, v) >>file;
670 } else if (file ~ /\\.asm\$/) {
671 printf(\"%%define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.mak\$/) {
673 n = -v ? \"\" : \"!\";
674 printf(\"%s%s=yes\\n\", n, c) >>file;
684 enabled $v && printf "%s\n" ${v%$suf}
691 eval "$var=\"\$$var $*\""
697 eval "$var=\"$* \$$var\""
703 for tok in $(eval echo \$$var); do
704 uniq_list="$(filter_out $tok $uniq_list) $tok"
706 eval "$var=\"${uniq_list}\""
714 append CFLAGS $($cflags_filter "$@")
718 append ASFLAGS $($asflags_filter "$@")
722 append OBJCFLAGS $($objcflags_filter "$@")
726 append LDFLAGS $($ldflags_filter "$@")
730 append LDEXEFLAGS $($ldflags_filter "$@")
734 append STRIPFLAGS "$@"
738 prepend extralibs $($ldflags_filter "$@")
742 append host_cppflags "$@"
746 append host_cflags $($host_cflags_filter "$@")
750 append host_ldflags $($host_ldflags_filter "$@")
754 append compat_objs $1
756 map 'add_cppflags -D$v' "$@"
761 "$@" >> $logfile 2>&1
765 eval printf '%s\\n' $CC_O
769 eval printf '%s\\n' $CC_E
776 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
783 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
790 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
794 eval printf '%s\\n' $AS_O
801 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
805 log check_inline_asm "$@"
810 check_cc "$@" <<EOF && enable $name
811 void foo(void){ __asm__ volatile($code); }
817 check_inline_asm ${1}_inline "\"$2\""
818 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
826 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
830 eval printf '%s\\n' $LD_O
835 flags=$(filter_out '-l*' "$@")
836 libs=$(filter '-l*' "$@")
837 check_cc $($cflags_filter $flags) || return
838 flags=$($ldflags_filter $flags)
839 libs=$($ldflags_filter $libs)
840 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
845 test "${hdr%.h}" = "${hdr}" &&
846 echo "#include $hdr" ||
847 echo "#include <$hdr>"
857 for hdr in $headers; do
860 echo "int main(void) { $code; return 0; }"
861 } | check_$check "$@"
865 log check_cppflags "$@"
866 check_cc "$@" <<EOF && append CPPFLAGS "$@"
873 set -- $($cflags_filter "$@")
880 log check_cflags "$@"
881 test_cflags "$@" && add_cflags "$@"
886 set -- $($cflags_filter "$@")
887 check_objcc "$@" <<EOF
893 log check_cflags "$@"
894 test_objcflags "$@" && add_objcflags "$@"
898 log test_ldflags "$@"
900 int main(void){ return 0; }
905 log check_ldflags "$@"
906 test_ldflags "$@" && add_ldflags "$@"
910 log test_stripflags "$@"
911 # call check_cc to get a fresh TMPO
913 int main(void) { return 0; }
915 check_cmd $strip $STRIPFLAGS "$@" $TMPO
919 log check_stripflags "$@"
920 test_stripflags "$@" && add_stripflags "$@"
924 log check_header "$@"
928 check_cpp "$@" <<EOF && enable_safe $header
939 check_ld "$@" <<EOF && enable $func
941 int main(void){ $func(); }
946 log check_mathfunc "$@"
950 test $narg = 2 && args="f, g" || args="f"
952 check_ld "$@" <<EOF && enable $func
954 float foo(float f, float g) { return $func($args); }
955 int main(void){ return 0; }
959 check_func_headers(){
960 log check_func_headers "$@"
965 for hdr in $headers; do
968 for func in $funcs; do
969 echo "long check_$func(void) { return (long) $func; }"
971 echo "int main(void) { return 0; }"
972 } | check_ld "$@" && enable $funcs && enable_safe $headers
975 check_cpp_condition(){
976 log check_cpp_condition "$@"
983 #error "unsatisfied condition: $condition"
993 check_header $header && check_func $func "$@" && add_extralibs "$@"
1001 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1005 log check_pkg_config "$@"
1010 check_cmd $pkg_config --exists --print-errors $pkg || return
1011 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1012 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1013 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1014 set_safe "${pkg}_cflags" $pkg_cflags &&
1015 set_safe "${pkg}_libs" $pkg_libs
1019 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1025 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1026 # are safe but may not be available everywhere. Thus we use
1027 # raise(SIGTERM) instead. The check is run in a subshell so we
1028 # can redirect the "Terminated" message from the shell. SIGBUS
1029 # is not defined by standard C so it is used conditionally.
1031 (check_exec "$@") >> $logfile 2>&1 <<EOF
1033 static void sighandler(int sig){
1039 int (*func_ptr)(void) = foo;
1041 signal(SIGILL, sighandler);
1042 signal(SIGFPE, sighandler);
1043 signal(SIGSEGV, sighandler);
1045 signal(SIGBUS, sighandler);
1057 disable_safe "$type"
1058 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1062 log check_struct "$@"
1067 disable_safe "${struct}_${member}"
1068 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1069 enable_safe "${struct}_${member}"
1073 log check_builtin "$@"
1079 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1082 check_compile_assert(){
1083 log check_compile_assert "$@"
1089 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1097 check_lib $header $func "$@" || die "ERROR: $name not found"
1105 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1108 require_pkg_config(){
1110 check_pkg_config "$@" || die "ERROR: $pkg not found"
1111 add_cflags $(get_safe "${pkg}_cflags")
1112 add_extralibs $(get_safe "${pkg}_libs")
1116 eval printf '%s\\n' $HOSTCC_E
1120 eval printf '%s\\n' $HOSTCC_O
1124 log check_host_cc "$@"
1127 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1131 log check_host_cpp "$@"
1134 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1137 check_host_cppflags(){
1138 log check_host_cppflags "$@"
1139 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1144 check_host_cflags(){
1145 log check_host_cflags "$@"
1146 set -- $($host_cflags_filter "$@")
1147 check_host_cc "$@" <<EOF && append host_cflags "$@"
1152 check_host_cpp_condition(){
1153 log check_host_cpp_condition "$@"
1157 check_host_cpp "$@" <<EOF
1160 #error "unsatisfied condition: $condition"
1168 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1172 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1173 mkdir -p "$(dirname $2)"
1177 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1178 # system-dependent things.
1180 AVCODEC_COMPONENTS="
1188 AVDEVICE_COMPONENTS="
1192 AVFILTER_COMPONENTS="
1195 AVFORMAT_COMPONENTS="
1201 AVRESAMPLE_COMPONENTS=""
1202 AVUTIL_COMPONENTS=""
1206 $AVDEVICE_COMPONENTS
1207 $AVFILTER_COMPONENTS
1208 $AVFORMAT_COMPONENTS
1209 $AVRESAMPLE_COMPONENTS
1215 filter_audio_example
1219 transcode_aac_example
1222 HWACCEL_LIBRARY_LIST="
1236 EXTERNAL_LIBRARY_LIST="
1289 safe_bitstream_reader
1335 $EXTERNAL_LIBRARY_LIST
1336 $HWACCEL_LIBRARY_LIST
1400 ARCH_EXT_LIST_X86_SIMD="
1428 $ARCH_EXT_LIST_X86_SIMD
1433 ARCH_EXT_LIST_MIPS="
1468 sync_val_compare_and_swap
1482 AVFoundation_AVFoundation_h
1487 cdio_paranoia_paranoia_h
1489 dev_bktr_ioctl_bt848_h
1490 dev_bktr_ioctl_meteor_h
1492 dev_video_bktr_ioctl_bt848_h
1493 dev_video_meteor_ioctl_meteor_h
1501 machine_ioctl_bt848_h
1502 machine_ioctl_meteor_h
1566 GetProcessAffinityMask
1567 GetProcessMemoryInfo
1570 GetSystemTimeAsFileTime
1575 jack_port_get_latency_range
1587 SetConsoleTextAttribute
1598 TOOLCHAIN_FEATURES="
1619 CONDITION_VARIABLE_Ptr
1622 struct_group_source_req
1623 struct_ip_mreq_source
1626 struct_rusage_ru_maxrss
1628 struct_sockaddr_sa_len
1629 struct_sockaddr_storage
1630 struct_v4l2_frmivalenum_discrete
1635 $(add_suffix _external $ARCH_EXT_LIST)
1636 $(add_suffix _inline $ARCH_EXT_LIST)
1655 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1665 # options emitted with CONFIG_ prefix but not available on the command line
1811 # code dependency declarations
1813 # architecture extensions
1818 armv8_deps="aarch64"
1819 neon_deps_any="aarch64 arm"
1820 intrinsics_neon_deps="neon"
1821 vfp_deps_any="aarch64 arm"
1824 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1832 x86_64_select="i686"
1833 x86_64_suggest="fast_cmov"
1836 amd3dnowext_deps="amd3dnow"
1852 mmx_external_deps="yasm"
1853 mmx_inline_deps="inline_asm"
1854 mmx_suggest="mmx_external mmx_inline"
1856 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1857 eval dep=\$${ext}_deps
1858 eval ${ext}_external_deps='"${dep}_external"'
1859 eval ${ext}_inline_deps='"${dep}_inline"'
1860 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1863 aligned_stack_if_any="aarch64 ppc x86"
1864 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1865 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1866 fast_unaligned_if_any="aarch64 ppc x86"
1867 simd_align_16_if_any="altivec neon sse"
1869 # system capabilities
1870 symver_if_any="symver_asm_label symver_gnu_asm"
1871 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1874 atomics_gcc_if="sync_val_compare_and_swap"
1875 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1876 atomics_win32_if="MemoryBarrier"
1877 atomics_native_if_any="$ATOMICS_LIST"
1878 w32threads_deps="atomics_native"
1879 threads_if_any="$THREADS_LIST"
1883 dirac_parse_select="golomb"
1884 error_resilience_select="me_cmp"
1885 faandct_deps="faan fdctdsp"
1886 faanidct_deps="faan idctdsp"
1887 h264dsp_select="startcode"
1888 intrax8_select="blockdsp idctdsp"
1891 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1892 mpeg_er_select="error_resilience"
1893 mpegaudio_select="mpegaudiodsp"
1894 mpegaudiodsp_select="dct"
1895 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1896 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1897 vc1dsp_select="h264chroma qpeldsp startcode"
1899 # decoders / encoders
1900 aac_decoder_select="imdct15 mdct sinewin"
1901 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1902 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1903 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1904 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1905 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1906 adpcm_g722_decoder_select="g722dsp"
1907 adpcm_g722_encoder_select="g722dsp"
1908 aic_decoder_select="golomb idctdsp"
1909 alac_encoder_select="lpc"
1910 als_decoder_select="bswapdsp"
1911 amrnb_decoder_select="lsp"
1912 amrwb_decoder_select="lsp"
1913 amv_decoder_select="sp5x_decoder"
1914 ape_decoder_select="bswapdsp"
1915 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1916 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1917 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1918 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1919 atrac1_decoder_select="mdct sinewin"
1920 atrac3_decoder_select="mdct"
1921 atrac3p_decoder_select="mdct sinewin"
1922 bink_decoder_select="blockdsp hpeldsp"
1923 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1924 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1925 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1926 cllc_decoder_select="bswapdsp"
1927 comfortnoise_encoder_select="lpc"
1928 cook_decoder_select="audiodsp mdct sinewin"
1929 cscd_decoder_select="lzo"
1930 cscd_decoder_suggest="zlib"
1931 dca_decoder_select="fmtconvert mdct"
1932 dds_decoder_select="texturedsp"
1933 dnxhd_decoder_select="blockdsp idctdsp"
1934 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1935 dvvideo_decoder_select="dvprofile idctdsp"
1936 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1937 dxa_decoder_deps="zlib"
1938 dxv_decoder_select="lzf texturedsp"
1939 eac3_decoder_select="ac3_decoder"
1940 eac3_encoder_select="ac3_encoder"
1941 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1942 eatgq_decoder_select="aandcttables idctdsp"
1943 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1944 exr_decoder_deps="zlib"
1945 ffv1_decoder_select="golomb rangecoder"
1946 ffv1_encoder_select="rangecoder"
1947 ffvhuff_decoder_select="huffyuv_decoder"
1948 ffvhuff_encoder_select="huffyuv_encoder"
1949 fic_decoder_select="golomb"
1950 flac_decoder_select="flacdsp golomb"
1951 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1952 flashsv_decoder_deps="zlib"
1953 flashsv_encoder_deps="zlib"
1954 flashsv2_decoder_deps="zlib"
1955 flv_decoder_select="h263_decoder"
1956 flv_encoder_select="h263_encoder"
1957 fourxm_decoder_select="blockdsp bswapdsp"
1958 fraps_decoder_select="bswapdsp huffman"
1959 g2m_decoder_deps="zlib"
1960 g2m_decoder_select="blockdsp idctdsp jpegtables"
1961 h261_decoder_select="mpeg_er mpegvideo"
1962 h261_encoder_select="aandcttables mpegvideoenc"
1963 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1964 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1965 h263i_decoder_select="h263_decoder"
1966 h263p_encoder_select="h263_encoder"
1967 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1968 h264_decoder_suggest="error_resilience"
1969 hap_decoder_select="snappy texturedsp"
1970 hap_encoder_deps="libsnappy"
1971 hap_encoder_select="texturedspenc"
1972 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1973 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1974 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1975 iac_decoder_select="imc_decoder"
1976 imc_decoder_select="bswapdsp fft mdct sinewin"
1977 indeo3_decoder_select="hpeldsp"
1978 indeo4_decoder_select="ividsp"
1979 indeo5_decoder_select="ividsp"
1980 interplay_video_decoder_select="hpeldsp"
1981 jpegls_decoder_select="golomb mjpeg_decoder"
1982 jpegls_encoder_select="golomb"
1983 jv_decoder_select="blockdsp"
1984 lagarith_decoder_select="huffyuvdsp"
1985 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1986 loco_decoder_select="golomb"
1987 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1988 metasound_decoder_select="lsp mdct sinewin"
1989 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1990 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1991 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1992 mjpegb_decoder_select="mjpeg_decoder"
1993 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
1994 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
1995 mlp_decoder_select="mlp_parser"
1996 motionpixels_decoder_select="bswapdsp"
1997 mp1_decoder_select="mpegaudio"
1998 mp1float_decoder_select="mpegaudio"
1999 mp2_decoder_select="mpegaudio"
2000 mp2float_decoder_select="mpegaudio"
2001 mp3_decoder_select="mpegaudio"
2002 mp3adu_decoder_select="mpegaudio"
2003 mp3adufloat_decoder_select="mpegaudio"
2004 mp3float_decoder_select="mpegaudio"
2005 mp3on4_decoder_select="mpegaudio"
2006 mp3on4float_decoder_select="mpegaudio"
2007 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2008 mpc8_decoder_select="mpegaudiodsp"
2009 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2010 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2011 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2012 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2013 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2014 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2015 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2016 mpeg4_encoder_select="h263_encoder"
2017 msa1_decoder_select="mss34dsp"
2018 msmpeg4v1_decoder_select="h263_decoder"
2019 msmpeg4v2_decoder_select="h263_decoder"
2020 msmpeg4v2_encoder_select="h263_encoder"
2021 msmpeg4v3_decoder_select="h263_decoder"
2022 msmpeg4v3_encoder_select="h263_encoder"
2023 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2024 mts2_decoder_select="mss34dsp"
2025 mxpeg_decoder_select="mjpeg_decoder"
2026 nellymoser_decoder_select="mdct sinewin"
2027 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2028 nuv_decoder_select="idctdsp lzo"
2029 on2avc_decoder_select="mdct"
2030 opus_decoder_deps="avresample"
2031 opus_decoder_select="imdct15"
2032 png_decoder_deps="zlib"
2033 png_encoder_deps="zlib"
2034 png_encoder_select="huffyuvencdsp"
2035 prores_decoder_select="idctdsp"
2036 prores_encoder_select="fdctdsp"
2037 qcelp_decoder_select="lsp"
2038 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2039 ra_144_encoder_select="audio_frame_queue lpc"
2040 ralf_decoder_select="golomb"
2041 rscc_decoder_deps="zlib"
2042 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2043 rv10_encoder_select="h263_encoder"
2044 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2045 rv20_encoder_select="h263_encoder"
2046 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2047 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2048 screenpresso_decoder_deps="zlib"
2049 shorten_decoder_select="golomb"
2050 sipr_decoder_select="lsp"
2051 sp5x_decoder_select="mjpeg_decoder"
2052 svq1_decoder_select="hpeldsp"
2053 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2054 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2055 svq3_decoder_suggest="zlib"
2056 tak_decoder_select="audiodsp"
2057 tdsc_decoder_deps="zlib"
2058 tdsc_decoder_select="mjpeg_decoder"
2059 theora_decoder_select="vp3_decoder"
2060 thp_decoder_select="mjpeg_decoder"
2061 tiff_decoder_suggest="zlib"
2062 tiff_encoder_suggest="zlib"
2063 truehd_decoder_select="mlp_decoder"
2064 truemotion2_decoder_select="bswapdsp"
2065 truespeech_decoder_select="bswapdsp"
2066 tscc_decoder_deps="zlib"
2067 txd_decoder_select="texturedsp"
2068 twinvq_decoder_select="mdct lsp sinewin"
2069 utvideo_decoder_select="bswapdsp"
2070 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2071 vble_decoder_select="huffyuvdsp"
2072 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2073 vc1image_decoder_select="vc1_decoder"
2074 vorbis_decoder_select="mdct"
2075 vorbis_encoder_select="mdct"
2076 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2077 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2078 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2079 vp6a_decoder_select="vp6_decoder"
2080 vp6f_decoder_select="vp6_decoder"
2081 vp7_decoder_select="h264pred videodsp vp8dsp"
2082 vp8_decoder_select="h264pred videodsp vp8dsp"
2083 vp9_decoder_select="videodsp"
2084 webp_decoder_select="vp8_decoder"
2085 wmapro_decoder_select="mdct sinewin wma_freqs"
2086 wmav1_decoder_select="mdct sinewin wma_freqs"
2087 wmav1_encoder_select="mdct sinewin wma_freqs"
2088 wmav2_decoder_select="mdct sinewin wma_freqs"
2089 wmav2_encoder_select="mdct sinewin wma_freqs"
2090 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2091 wmv1_decoder_select="h263_decoder"
2092 wmv1_encoder_select="h263_encoder"
2093 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2094 wmv2_encoder_select="h263_encoder wmv2dsp"
2095 wmv3_decoder_select="vc1_decoder"
2096 wmv3image_decoder_select="wmv3_decoder"
2097 zerocodec_decoder_deps="zlib"
2098 zlib_decoder_deps="zlib"
2099 zlib_encoder_deps="zlib"
2100 zmbv_decoder_deps="zlib"
2101 zmbv_encoder_deps="zlib"
2103 # hardware accelerators
2104 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2105 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2106 vaapi_deps="va_va_h"
2107 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2108 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2109 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2111 h263_vaapi_hwaccel_deps="vaapi"
2112 h263_vaapi_hwaccel_select="h263_decoder"
2113 h264_d3d11va_hwaccel_deps="d3d11va"
2114 h264_d3d11va_hwaccel_select="h264_decoder"
2115 h264_dxva2_hwaccel_deps="dxva2"
2116 h264_dxva2_hwaccel_select="h264_decoder"
2117 h264_mmal_decoder_deps="mmal"
2118 h264_mmal_decoder_select="mmal"
2119 h264_mmal_hwaccel_deps="mmal"
2120 h264_omx_encoder_deps="omx"
2121 h264_qsv_hwaccel_deps="libmfx"
2122 h264_vaapi_hwaccel_deps="vaapi"
2123 h264_vaapi_hwaccel_select="h264_decoder"
2124 h264_vda_hwaccel_deps="vda"
2125 h264_vda_hwaccel_select="h264_decoder"
2126 h264_vda_old_hwaccel_deps="vda"
2127 h264_vda_old_hwaccel_select="h264_decoder"
2128 h264_vdpau_hwaccel_deps="vdpau"
2129 h264_vdpau_hwaccel_select="h264_decoder"
2130 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2131 hevc_d3d11va_hwaccel_select="hevc_decoder"
2132 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2133 hevc_dxva2_hwaccel_select="hevc_decoder"
2134 hevc_qsv_hwaccel_deps="libmfx"
2135 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2136 hevc_vdpau_hwaccel_select="hevc_decoder"
2137 mpeg1_vdpau_hwaccel_deps="vdpau"
2138 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2139 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2140 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2141 mpeg2_dxva2_hwaccel_deps="dxva2"
2142 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2143 mpeg2_mmal_decoder_deps="mmal"
2144 mpeg2_mmal_decoder_select="mmal"
2145 mpeg2_mmal_hwaccel_deps="mmal"
2146 mpeg2_qsv_hwaccel_deps="libmfx"
2147 mpeg2_vaapi_hwaccel_deps="vaapi"
2148 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2149 mpeg2_vdpau_hwaccel_deps="vdpau"
2150 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2151 mpeg4_omx_encoder_deps="omx"
2152 mpeg4_vaapi_hwaccel_deps="vaapi"
2153 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2154 mpeg4_vdpau_hwaccel_deps="vdpau"
2155 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2156 vc1_d3d11va_hwaccel_deps="d3d11va"
2157 vc1_d3d11va_hwaccel_select="vc1_decoder"
2158 vc1_dxva2_hwaccel_deps="dxva2"
2159 vc1_dxva2_hwaccel_select="vc1_decoder"
2160 vc1_mmal_decoder_deps="mmal"
2161 vc1_mmal_decoder_select="mmal"
2162 vc1_mmal_hwaccel_deps="mmal"
2163 vc1_vaapi_hwaccel_deps="vaapi"
2164 vc1_vaapi_hwaccel_select="vc1_decoder"
2165 vc1_vdpau_hwaccel_deps="vdpau"
2166 vc1_vdpau_hwaccel_select="vc1_decoder"
2167 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2168 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2169 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2170 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2172 # hardware-accelerated codecs
2173 nvenc_deps_any="dlopen LoadLibrary"
2174 nvenc_extralibs='$ldl'
2175 omx_deps="dlopen pthreads"
2176 omx_extralibs='$ldl'
2179 vaapi_encode_deps="vaapi"
2181 hwupload_cuda_filter_deps="cuda"
2182 scale_npp_filter_deps="cuda libnpp"
2184 h264_nvenc_encoder_deps="nvenc"
2185 h264_qsv_decoder_deps="libmfx"
2186 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2187 h264_qsv_encoder_deps="libmfx"
2188 h264_qsv_encoder_select="qsvenc"
2189 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2190 h264_vaapi_encoder_select="vaapi_encode golomb"
2192 hevc_nvenc_encoder_deps="nvenc"
2193 hevc_qsv_decoder_deps="libmfx"
2194 hevc_qsv_encoder_deps="libmfx"
2195 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2196 hevc_qsv_encoder_select="qsvenc"
2197 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2198 hevc_vaapi_encoder_select="vaapi_encode golomb"
2199 mpeg2_qsv_decoder_deps="libmfx"
2200 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2201 mpeg2_qsv_encoder_deps="libmfx"
2202 mpeg2_qsv_encoder_select="qsvenc"
2204 nvenc_h264_encoder_deps="nvenc"
2205 nvenc_hevc_encoder_deps="nvenc"
2208 h264_parser_select="golomb h264dsp"
2209 hevc_parser_select="golomb"
2210 mpegvideo_parser_select="mpegvideo"
2211 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2212 vc1_parser_select="vc1dsp"
2215 mjpeg2jpeg_bsf_select="jpegtables"
2217 # external libraries
2218 libdcadec_decoder_deps="libdcadec"
2219 libfaac_encoder_deps="libfaac"
2220 libfaac_encoder_select="audio_frame_queue"
2221 libfdk_aac_decoder_deps="libfdk_aac"
2222 libfdk_aac_encoder_deps="libfdk_aac"
2223 libfdk_aac_encoder_select="audio_frame_queue"
2224 libgsm_decoder_deps="libgsm"
2225 libgsm_encoder_deps="libgsm"
2226 libgsm_ms_decoder_deps="libgsm"
2227 libgsm_ms_encoder_deps="libgsm"
2228 libilbc_decoder_deps="libilbc"
2229 libilbc_encoder_deps="libilbc"
2230 libkvazaar_encoder_deps="libkvazaar"
2231 libmp3lame_encoder_deps="libmp3lame"
2232 libmp3lame_encoder_select="audio_frame_queue"
2233 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2234 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2235 libopencore_amrnb_encoder_select="audio_frame_queue"
2236 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2237 libopenh264_encoder_deps="libopenh264"
2238 libopenjpeg_decoder_deps="libopenjpeg"
2239 libopenjpeg_encoder_deps="libopenjpeg"
2240 libopus_decoder_deps="libopus"
2241 libopus_encoder_deps="libopus"
2242 libopus_encoder_select="audio_frame_queue"
2243 libschroedinger_decoder_deps="libschroedinger"
2244 libschroedinger_encoder_deps="libschroedinger"
2245 libspeex_decoder_deps="libspeex"
2246 libspeex_encoder_deps="libspeex"
2247 libspeex_encoder_select="audio_frame_queue"
2248 libtheora_encoder_deps="libtheora"
2249 libtwolame_encoder_deps="libtwolame"
2250 libvo_aacenc_encoder_deps="libvo_aacenc"
2251 libvo_aacenc_encoder_select="audio_frame_queue"
2252 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2253 libvorbis_encoder_deps="libvorbis"
2254 libvorbis_encoder_select="audio_frame_queue"
2255 libvpx_vp8_decoder_deps="libvpx"
2256 libvpx_vp8_encoder_deps="libvpx"
2257 libvpx_vp9_decoder_deps="libvpx"
2258 libvpx_vp9_encoder_deps="libvpx"
2259 libwavpack_encoder_deps="libwavpack"
2260 libwebp_encoder_deps="libwebp"
2261 libx262_encoder_deps="libx262"
2262 libx264_encoder_deps="libx264"
2263 libx265_encoder_deps="libx265"
2264 libxavs_encoder_deps="libxavs"
2265 libxvid_encoder_deps="libxvid"
2268 ac3_demuxer_select="ac3_parser"
2269 asf_demuxer_select="riffdec"
2270 asf_muxer_select="riffenc"
2271 asf_stream_muxer_select="asf_muxer"
2272 avi_demuxer_select="iso_media riffdec"
2273 avi_muxer_select="riffenc"
2274 avisynth_demuxer_deps="avisynth"
2275 avisynth_demuxer_select="riffdec"
2276 caf_demuxer_select="iso_media riffdec"
2277 dash_muxer_select="mp4_muxer"
2278 dirac_demuxer_select="dirac_parser"
2279 dv_demuxer_select="dvprofile"
2280 dv_muxer_select="dvprofile"
2281 dxa_demuxer_select="riffdec"
2282 eac3_demuxer_select="ac3_parser"
2283 f4v_muxer_select="mov_muxer"
2284 flac_demuxer_select="flac_parser"
2285 hds_muxer_select="flv_muxer"
2286 hls_muxer_select="mpegts_muxer"
2287 ipod_muxer_select="mov_muxer"
2288 ismv_muxer_select="mov_muxer"
2289 matroska_audio_muxer_select="matroska_muxer"
2290 matroska_demuxer_select="iso_media riffdec"
2291 matroska_demuxer_suggest="bzlib lzo zlib"
2292 matroska_muxer_select="iso_media riffenc"
2293 mmf_muxer_select="riffenc"
2294 mov_demuxer_select="iso_media riffdec"
2295 mov_demuxer_suggest="zlib"
2296 mov_muxer_select="iso_media riffenc rtpenc_chain"
2297 mp3_demuxer_select="mpegaudio_parser"
2298 mp4_muxer_select="mov_muxer"
2299 mpegts_demuxer_select="iso_media"
2300 mpegts_muxer_select="adts_muxer latm_muxer"
2301 mpegtsraw_demuxer_select="mpegts_demuxer"
2302 mxf_d10_muxer_select="mxf_muxer"
2303 nut_muxer_select="riffenc"
2304 nuv_demuxer_select="riffdec"
2305 oga_muxer_select="ogg_muxer"
2306 ogg_demuxer_select="dirac_parse"
2307 opus_muxer_select="ogg_muxer"
2308 psp_muxer_select="mov_muxer"
2309 rtp_demuxer_select="sdp_demuxer"
2310 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2311 rtsp_demuxer_select="http_protocol rtpdec"
2312 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2313 sap_demuxer_select="sdp_demuxer"
2314 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2315 sdp_demuxer_select="rtpdec"
2316 smoothstreaming_muxer_select="ismv_muxer"
2317 spdif_muxer_select="aac_parser"
2318 spx_muxer_select="ogg_muxer"
2319 swf_demuxer_suggest="zlib"
2320 tak_demuxer_select="tak_parser"
2321 tg2_muxer_select="mov_muxer"
2322 tgp_muxer_select="mov_muxer"
2323 w64_demuxer_select="wav_demuxer"
2324 wav_demuxer_select="riffdec"
2325 wav_muxer_select="riffenc"
2326 webm_muxer_select="iso_media riffenc"
2327 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2328 wtv_demuxer_select="mpegts_demuxer riffdec"
2329 xmv_demuxer_select="riffdec"
2330 xwma_demuxer_select="riffdec"
2333 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2334 alsa_outdev_deps="alsa_asoundlib_h"
2335 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2336 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2337 dv1394_indev_deps="dv1394"
2338 dv1394_indev_select="dv_demuxer"
2339 fbdev_indev_deps="linux_fb_h"
2340 jack_indev_deps="jack_jack_h"
2341 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2342 libcdio_indev_deps="libcdio"
2343 libdc1394_indev_deps="libdc1394"
2344 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2345 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2346 pulse_indev_deps="libpulse"
2347 sndio_indev_deps="sndio_h"
2348 sndio_outdev_deps="sndio_h"
2349 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2350 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2351 vfwcap_indev_extralibs="-lavicap32"
2352 x11grab_indev_deps="x11grab"
2353 x11grab_xcb_indev_deps="libxcb"
2356 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2357 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2358 ffrtmpcrypt_protocol_select="tcp_protocol"
2359 ffrtmphttp_protocol_deps="!librtmp_protocol"
2360 ffrtmphttp_protocol_select="http_protocol"
2361 gopher_protocol_select="network"
2362 http_protocol_select="tcp_protocol"
2363 httpproxy_protocol_select="tcp_protocol"
2364 https_protocol_select="tls_protocol"
2365 icecast_protocol_select="http_protocol"
2366 librtmp_protocol_deps="librtmp"
2367 librtmpe_protocol_deps="librtmp"
2368 librtmps_protocol_deps="librtmp"
2369 librtmpt_protocol_deps="librtmp"
2370 librtmpte_protocol_deps="librtmp"
2371 mmsh_protocol_select="http_protocol"
2372 mmst_protocol_select="network"
2373 rtmp_protocol_deps="!librtmp_protocol"
2374 rtmp_protocol_select="tcp_protocol"
2375 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2376 rtmps_protocol_deps="!librtmp_protocol"
2377 rtmps_protocol_select="tls_protocol"
2378 rtmpt_protocol_select="ffrtmphttp_protocol"
2379 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2380 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2381 rtp_protocol_select="udp_protocol"
2382 sctp_protocol_deps="struct_sctp_event_subscribe"
2383 sctp_protocol_select="network"
2384 srtp_protocol_select="rtp_protocol srtp"
2385 tcp_protocol_select="network"
2386 tls_gnutls_protocol_deps="gnutls"
2387 tls_gnutls_protocol_select="tcp_protocol"
2388 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2389 tls_openssl_protocol_select="tcp_protocol"
2390 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2391 udp_protocol_select="network"
2392 unix_protocol_deps="sys_un_h"
2393 unix_protocol_select="network"
2396 blackframe_filter_deps="gpl"
2397 boxblur_filter_deps="gpl"
2398 bs2b_filter_deps="libbs2b"
2399 cropdetect_filter_deps="gpl"
2400 delogo_filter_deps="gpl"
2401 drawtext_filter_deps="libfreetype"
2402 frei0r_filter_deps="frei0r dlopen"
2403 frei0r_filter_extralibs='$ldl'
2404 frei0r_src_filter_deps="frei0r dlopen"
2405 frei0r_src_filter_extralibs='$ldl'
2406 hqdn3d_filter_deps="gpl"
2407 interlace_filter_deps="gpl"
2408 ocv_filter_deps="libopencv"
2409 resample_filter_deps="avresample"
2410 scale_filter_deps="swscale"
2411 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2414 avcodec_example_deps="avcodec avutil"
2415 filter_audio_example_deps="avfilter avutil"
2416 metadata_example_deps="avformat avutil"
2417 output_example_deps="avcodec avformat avutil swscale"
2418 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2419 transcode_aac_example_deps="avcodec avformat avresample"
2421 # libraries, in linking order
2422 avcodec_deps="avutil"
2423 avdevice_deps="avformat avcodec avutil"
2424 avfilter_deps="avutil"
2425 avformat_deps="avcodec avutil"
2426 avresample_deps="avutil"
2427 swscale_deps="avutil"
2430 avconv_deps="avcodec avfilter avformat avresample swscale"
2431 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2432 fps_filter null_filter resample_filter scale_filter
2433 setpts_filter trim_filter"
2434 avplay_deps="avcodec avfilter avformat avresample sdl"
2435 avplay_libs='$sdl_libs'
2436 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2437 avprobe_deps="avcodec avformat"
2441 texi2html_deps="doc"
2443 # default parameters
2445 logfile="config.log"
2447 # installation paths
2448 prefix_default="/usr/local"
2449 bindir_default='${prefix}/bin'
2450 datadir_default='${prefix}/share/avconv'
2451 docdir_default='${prefix}/share/doc/libav'
2452 incdir_default='${prefix}/include'
2453 libdir_default='${prefix}/lib'
2454 mandir_default='${prefix}/share/man'
2455 shlibdir_default="$libdir_default"
2460 host_cc_default="gcc"
2465 pkg_config_default=pkg-config
2468 version_script='--version-script'
2472 arch_default=$(uname -m)
2477 target_os_default=$(tolower $(uname -s))
2478 host_os=$target_os_default
2480 # configurable options
2481 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2486 enable faan faandct faanidct
2487 enable optimizations
2488 enable safe_bitstream_reader
2490 enable swscale_alpha
2491 enable valgrind_backtrace
2493 # By default, enable only those hwaccels that have no external dependencies.
2494 enable d3d11va dxva2 vda vdpau
2497 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2500 FULLNAME='$(NAME)$(BUILDSUF)'
2501 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2504 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2505 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2506 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2507 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2508 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2509 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2510 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2533 host_cflags_filter=echo
2534 host_ldflags_filter=echo
2536 target_path='$(CURDIR)'
2538 # since the object filename is not given with the -MM flag, the compiler
2539 # is only able to print the basename, and we must add the path ourselves
2540 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2544 if test -f configure; then
2547 source_path=$(cd $(dirname "$0"); pwd)
2548 echo "$source_path" | grep -q '[[:blank:]]' &&
2549 die "Out of tree builds are impossible with whitespace in source path."
2550 test -e "$source_path/config.h" &&
2551 die "Out of tree builds are impossible with config.h in source dir."
2558 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2564 file=$source_path/$3
2565 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2568 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2569 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2570 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2571 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2572 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2573 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2574 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2575 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2576 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2578 find_things_extern(){
2581 file=$source_path/$3
2582 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2585 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2586 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2602 for n in $COMPONENT_LIST; do
2603 v=$(toupper ${n%s})_LIST
2605 eval ${n}_if_any="\$$v"
2608 enable $ARCH_EXT_LIST
2611 echo "Unknown option \"$1\"."
2612 echo "See $0 --help for available options."
2617 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2623 echo $* | sed s/$suffix//g | print_3_columns
2635 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2636 echo "prob ${prob:-0.5}"
2644 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2645 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2654 --extra-ldexeflags=*)
2655 add_ldexeflags $optval
2658 add_extralibs $optval
2661 disable $INDEV_LIST $OUTDEV_LIST
2664 debuglevel="$optval"
2667 disable $PROGRAM_LIST
2669 --disable-everything)
2670 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2673 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2674 disable $LIBRARY_LIST $PROGRAM_LIST doc
2676 --enable-random|--disable-random)
2677 action=${opt%%-random}
2678 do_random ${action#--} $COMPONENT_LIST
2680 --enable-random=*|--disable-random=*)
2681 action=${opt%%-random=*}
2682 do_random ${action#--} $optval
2684 --enable-*=*|--disable-*=*)
2685 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2686 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2687 eval list=\$$(toupper $thing)_LIST
2688 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2689 $action $(filter "$name" $list)
2691 --enable-avserver|--disable-avserver*)
2692 warn "avserver has been removed, the ${opt} option is only"\
2693 "provided for compatibility and will be removed in the future"
2695 --enable-?*|--disable-?*)
2696 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2697 if is_in $option $COMPONENT_LIST; then
2698 test $action = disable && action=unset
2699 eval $action \$$(toupper ${option%s})_LIST
2700 elif is_in $option $CMDLINE_SELECT; then
2707 NAME="${opt#--list-}"
2708 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2710 eval show_list $NAME \$$(toupper $NAME)_LIST
2712 --help|-h) show_help
2715 optname="${opt%%=*}"
2716 optname="${optname#--}"
2717 optname=$(echo "$optname" | sed 's/-/_/g')
2718 if is_in $optname $CMDLINE_SET; then
2719 eval $optname='$optval'
2720 elif is_in $optname $CMDLINE_APPEND; then
2721 append $optname "$optval"
2733 disabled logging && logfile=/dev/null
2735 # Disable all the library-specific components if the library itself
2736 # is disabled, see AVCODEC_LIST and following _LIST variables.
2738 disable_components(){
2739 disabled ${1} && disable $(
2740 eval components="\$$(toupper ${1})_COMPONENTS"
2741 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2745 map 'disable_components $v' $LIBRARY_LIST
2747 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2750 case "$toolchain" in
2752 cc_default="${toolchain%-asan}"
2753 add_cflags -fsanitize=address
2754 add_ldflags -fsanitize=address
2757 cc_default="${toolchain%-msan}"
2758 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2759 add_ldflags -fsanitize=memory
2762 cc_default="${toolchain%-tsan}"
2763 add_cflags -fsanitize=thread -pie
2764 add_ldflags -fsanitize=thread -pie
2765 case "$toolchain" in
2773 cc_default="${toolchain%-usan}"
2774 add_cflags -fsanitize=undefined
2775 add_ldflags -fsanitize=undefined
2776 case "$toolchain" in
2783 target_exec_default="valgrind"
2784 case "$toolchain" in
2786 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2789 target_exec_args="--track-origins=yes --leak-check=full"
2794 # Check whether the current MSVC version needs the C99 converter.
2795 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2796 # support enough of C99 to build libav. Default to the new
2797 # behaviour if the regexp was unable to match anything, since this
2798 # successfully parses the version number of existing supported
2799 # versions that require the converter (MSVC 2010 and 2012).
2800 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2801 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2804 cc_default="c99wrap cl"
2806 ld_default="$source_path/compat/windows/mslink"
2807 nm_default="dumpbin -symbols"
2814 target_os_default="win32"
2815 # Use a relative path for TMPDIR. This makes sure all the
2816 # ffconf temp files are written with a relative path, avoiding
2817 # issues with msys/win32 path conversion for MSVC parameters
2818 # such as -Fo<file> or -out:<file>.
2824 nm_default="dumpbin -symbols"
2826 target_os_default="win32"
2830 add_cflags -fprofile-arcs -ftest-coverage
2831 add_ldflags -fprofile-arcs -ftest-coverage
2834 add_cflags -fprofile-arcs -ftest-coverage
2835 add_ldflags --coverage
2838 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2839 add_cflags -fno-strict-overflow -fstack-protector-all
2840 add_ldflags -Wl,-z,relro -Wl,-z,now
2843 die "Unknown toolchain $toolchain"
2847 test -n "$cross_prefix" && enable cross_compile
2849 if enabled cross_compile; then
2850 test -n "$arch" && test -n "$target_os" ||
2851 die "Must specify target arch and OS when cross-compiling"
2854 ar_default="${cross_prefix}${ar_default}"
2855 cc_default="${cross_prefix}${cc_default}"
2856 occ_default="${cross_prefix}${occ_default}"
2857 nm_default="${cross_prefix}${nm_default}"
2858 pkg_config_default="${cross_prefix}${pkg_config_default}"
2859 ranlib="${cross_prefix}${ranlib}"
2860 strip="${cross_prefix}${strip}"
2862 sysinclude_default="${sysroot}/usr/include"
2864 set_default arch cc pkg_config sysinclude target_exec target_os
2865 enabled cross_compile || host_cc_default=$cc
2868 if ! $pkg_config --version >/dev/null 2>&1; then
2869 warn "$pkg_config not found, library detection may fail."
2875 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2879 EXESUF=$(exesuf $target_os)
2880 HOSTEXESUF=$(exesuf $host_os)
2882 # set temporary file name
2883 : ${TMPDIR:=$TEMPDIR}
2887 if ! check_cmd mktemp -u XXXXXX; then
2888 # simple replacement for missing mktemp
2889 # NOT SAFE FOR GENERAL USE
2891 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2896 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2897 (set -C; exec > $tmp) 2>/dev/null ||
2898 die "Unable to create temporary file in $TMPDIR."
2899 append TMPFILES $tmp
2903 trap 'rm -f -- $TMPFILES' EXIT
2907 tmpfile TMPE $EXESUF
2918 # make sure we can execute files in $TMPDIR
2919 cat > $TMPSH 2>> $logfile <<EOF
2922 chmod +x $TMPSH >> $logfile 2>&1
2923 if ! $TMPSH >> $logfile 2>&1; then
2925 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2926 variable to another directory and make sure that it is not mounted noexec.
2928 die "Sanity test failed."
2934 # Filter out MSVC cl.exe options from cflags that shouldn't
2935 # be passed to gas-preprocessor
2945 -std=c99) echo -c99 ;;
2946 -mcpu=*) echo -arch ${flag#*=} ;;
2947 -mieee) echo -ieee ;;
2948 -O*|-fast) echo $flag ;;
2949 -fno-math-errno) echo -assume nomath_errno ;;
2951 -Wall) echo -msg_enable level2 ;;
2952 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2953 -Wl,*) echo $flag ;;
2963 -Wno-switch) echo -Wno-switch-enum ;;
2964 -Wno-format-zero-length) ;;
2965 -Wdisabled-optimization) ;;
2966 -Wno-pointer-sign) echo -Wno-other ;;
2972 msvc_common_flags(){
2975 # In addition to specifying certain flags under the compiler
2976 # specific filters, they must be specified here as well or else the
2977 # generic catch all at the bottom will print the original flag.
2981 -fomit-frame-pointer) ;;
2985 -fno-signed-zeros) ;;
2989 -lz) echo zlib.lib ;;
2990 -lavifil32) echo vfw32.lib ;;
2991 -lavicap32) echo vfw32.lib user32.lib ;;
2992 -lx264) echo libx264.lib ;;
2993 -l*) echo ${flag#-l}.lib ;;
2994 -L*) echo -libpath:${flag#-L} ;;
3001 msvc_common_flags "$@"
3004 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3005 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3006 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3007 -wd4273 -wd4554 -wd4701 ;;
3013 msvc_common_flags "$@"
3016 # Despite what Intel's documentation says -Wall, which is supported
3017 # on Windows, does enable remarks so disable them here.
3018 -Wall) echo $flag -Qdiag-disable:remark ;;
3019 -std=c99) echo -Qstd=c99 ;;
3027 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3028 -fomit-frame-pointer) echo -Mnoframe ;;
3039 case "${flag#*=}" in
3040 native) echo -xtarget=native ;;
3041 v9|niagara) echo -xarch=sparc ;;
3042 ultrasparc) echo -xarch=sparcvis ;;
3043 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3044 i586|pentium) echo -xchip=pentium ;;
3045 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3046 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3047 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3048 pentium4*) echo -xtarget=pentium4 ;;
3049 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3050 *-sse3) echo -xarch=sse3 ;;
3051 core2) echo -xarch=ssse3 -xchip=core2 ;;
3052 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3053 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3054 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3055 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3056 k8|opteron|athlon64|athlon-fx)
3057 echo -xarch=sse2a ;;
3058 athlon*) echo -xarch=pentium_proa ;;
3061 -std=c99) echo -xc99 ;;
3062 -fomit-frame-pointer) echo -xregs=frameptr ;;
3063 -fPIC) echo -KPIC -xcode=pic32 ;;
3064 -W*,*) echo $flag ;;
3065 -f*-*|-W*|-mimpure-text) ;;
3076 case "${flag#*=}" in
3077 armv7-a|cortex-a*) echo -mv=7a8 ;;
3078 armv7-r|cortex-r*) echo -mv=7r4 ;;
3079 armv7-m|cortex-m*) echo -mv=7m3 ;;
3080 armv6*|arm11*) echo -mv=6 ;;
3081 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3083 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3086 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3087 -mfpu=vfp) echo --float_support=vfpv2 ;;
3088 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3089 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3090 -msoft-float) echo --float_support=vfplib ;;
3091 -O[0-3]|-mf=*) echo $flag ;;
3093 -pds=*) echo $flag ;;
3094 -D*|-I*) echo $flag ;;
3095 --gcc|--abi=*) echo $flag ;;
3105 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3106 unset _ld_o _ldflags _ld_lib _ld_path
3107 unset _depflags _DEPCMD _DEPFLAGS
3110 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3112 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3113 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3114 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3117 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3119 gcc_version=$($_cc --version | head -n1)
3120 gcc_basever=$($_cc -dumpversion)
3121 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3122 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3123 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3124 if ! $_cc -dumpversion | grep -q '^2\.'; then
3125 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3129 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3131 _ident=$($_cc --version | head -n1)
3136 elif $_cc -v 2>&1 | grep -q xlc; then
3138 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3140 _cflags_size='-O5 -qcompact'
3141 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3143 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3145 _cflags_speed='-fast'
3147 _flags_filter=ccc_flags
3148 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3149 test -d "$sysroot" || die "No valid sysroot specified."
3151 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3152 armcc_conf="$PWD/armcc.conf"
3153 $_cc --arm_linux_configure \
3154 --arm_linux_config_file="$armcc_conf" \
3155 --configure_sysroot="$sysroot" \
3156 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3157 die "Error creating armcc configuration file."
3158 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3159 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3160 as_default="${cross_prefix}gcc"
3164 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3166 _ident=$($_cc -version | head -n1 | tr -s ' ')
3167 _flags='--gcc --abi=eabi -me'
3170 _depflags='-ppa -ppd=$(@:.o=.d)'
3171 _cflags_speed='-O3 -mf=5'
3172 _cflags_size='-O3 -mf=2'
3173 _flags_filter=tms470_flags
3174 elif $_cc -v 2>&1 | grep -q clang; then
3176 _ident=$($_cc --version 2>/dev/null | head -n1)
3177 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3180 elif $_cc -V 2>&1 | grep -q Sun; then
3182 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3183 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3184 _DEPFLAGS='-xM1 -xc99'
3187 _cflags_size='-O5 -xspace'
3188 _flags_filter=suncc_flags
3189 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3191 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3192 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3195 _flags_filter='filter_out -Wdisabled-optimization'
3196 elif $_cc -v 2>&1 | grep -q Open64; then
3198 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3199 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3202 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3203 elif $_cc -V 2>&1 | grep -q Portland; then
3205 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3206 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3207 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3208 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3210 _flags_filter=pgi_flags
3211 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3213 _ident=$($_cc | head -n1)
3214 # 4509: "This form of conditional instruction is deprecated"
3215 _flags="-nologo -ignore 4509"
3216 _flags_filter=armasm_flags
3217 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3219 _ident=$($_cc 2>&1 | head -n1)
3220 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3221 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3224 if $_cc -nologo- 2>&1 | grep -q Linker; then
3231 _flags_filter=msvc_flags
3233 _ld_path='-libpath:'
3235 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3236 elif $_cc 2>&1 | grep -q Intel; then
3238 _ident=$($_cc 2>&1 | head -n1)
3239 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3240 # Not only is O3 broken on 13.x+ but it is slower on all previous
3241 # versions (tested) as well.
3243 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3244 if $_cc 2>&1 | grep -q Linker; then
3251 _flags_filter=icl_flags
3253 _ld_path='-libpath:'
3254 # -Qdiag-error to make icl error when seeing certain unknown arguments
3255 _flags='-nologo -Qdiag-error:4044,10157'
3256 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3257 # with MSVC which enables it by default.
3258 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3259 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3261 _ident=$($_cc --version | head -n1)
3265 _flags_filter=cparser_flags
3268 eval ${pfx}_type=\$_type
3269 eval ${pfx}_ident=\$_ident
3273 eval ${1}_C=\${_cc_c-\${${1}_C}}
3274 eval ${1}_E=\${_cc_e-\${${1}_E}}
3275 eval ${1}_O=\${_cc_o-\${${1}_O}}
3277 if [ -n "$_depflags" ]; then
3278 eval ${1}_DEPFLAGS=\$_depflags
3280 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3281 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3282 eval DEP${1}FLAGS=\$_flags
3287 cflags_filter=$_flags_filter
3288 cflags_speed=$_cflags_speed
3289 cflags_size=$_cflags_size
3290 cflags_noopt=$_cflags_noopt
3291 add_cflags $_flags $_cflags
3292 cc_ldflags=$_ldflags
3295 probe_cc hostcc "$host_cc"
3296 host_cflags_filter=$_flags_filter
3297 add_host_cflags $_flags $_cflags
3300 test -n "$cc_type" && enable $cc_type ||
3301 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3303 : ${as_default:=$cc}
3304 : ${objcc_default:=$cc}
3305 : ${dep_cc_default:=$cc}
3306 : ${ld_default:=$cc}
3307 : ${host_ld_default:=$host_cc}
3308 set_default ar as objcc dep_cc ld host_ld
3311 asflags_filter=$_flags_filter
3312 add_asflags $_flags $_cflags
3315 probe_cc objcc "$objcc"
3316 objcflags_filter=$_flags_filter
3317 add_objcflags $_flags $_cflags
3321 ldflags_filter=$_flags_filter
3322 add_ldflags $_flags $_ldflags
3323 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3325 LD_LIB=${_ld_lib-$LD_LIB}
3326 LD_PATH=${_ld_path-$LD_PATH}
3328 probe_cc hostld "$host_ld"
3329 host_ldflags_filter=$_flags_filter
3330 add_host_ldflags $_flags $_ldflags
3331 HOSTLD_O=${_ld_o-$HOSTLD_O}
3333 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3334 probe_cc depcc "$dep_cc"
3335 CCDEP=${_DEPCMD:-$DEPCMD}
3336 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3340 if $ar 2>&1 | grep -q Microsoft; then
3343 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3346 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3347 arflags='-Xany -r -c'
3354 add_cflags $extra_cflags
3355 add_objcflags $extra_objcflags
3356 add_asflags $extra_cflags
3358 if test -n "$sysroot"; then
3361 add_cppflags --sysroot="$sysroot"
3362 add_ldflags --sysroot="$sysroot"
3365 add_cppflags -I"$sysinclude"
3366 add_ldflags --sysroot="$sysroot"
3371 if test "$cpu" = host; then
3372 enabled cross_compile &&
3373 die "--cpu=host makes no sense when cross-compiling."
3378 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3380 s/.*$1=\\([^ ]*\\).*/\\1/
3385 cpu=$(check_native -march || check_native -mcpu)
3389 test "${cpu:-host}" = host &&
3390 die "--cpu=host not supported with compiler $cc"
3393 # Deal with common $arch aliases
3417 "Power Macintosh"|ppc*|powerpc*)
3432 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3437 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3440 # Add processor-specific flags
3441 if enabled aarch64; then
3445 cpuflags="-march=$cpu"
3448 cpuflags="-mcpu=$cpu"
3452 elif enabled alpha; then
3454 cpuflags="-mcpu=$cpu"
3456 elif enabled arm; then
3459 check_cpp_condition stddef.h \
3460 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3465 if check_arm_arch 4; then echo armv4
3466 elif check_arm_arch 4T; then echo armv4t
3467 elif check_arm_arch 5; then echo armv5
3468 elif check_arm_arch 5E; then echo armv5e
3469 elif check_arm_arch 5T; then echo armv5t
3470 elif check_arm_arch 5TE; then echo armv5te
3471 elif check_arm_arch 5TEJ; then echo armv5te
3472 elif check_arm_arch 6; then echo armv6
3473 elif check_arm_arch 6J; then echo armv6j
3474 elif check_arm_arch 6K; then echo armv6k
3475 elif check_arm_arch 6Z; then echo armv6z
3476 elif check_arm_arch 6ZK; then echo armv6zk
3477 elif check_arm_arch 6T2; then echo armv6t2
3478 elif check_arm_arch 7; then echo armv7
3479 elif check_arm_arch 7A 7_A; then echo armv7-a
3480 elif check_arm_arch 7S; then echo armv7-a
3481 elif check_arm_arch 7R 7_R; then echo armv7-r
3482 elif check_arm_arch 7M 7_M; then echo armv7-m
3483 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3484 elif check_arm_arch 8A 8_A; then echo armv8-a
3488 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3492 cpuflags="-march=$cpu"
3493 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3496 cpuflags="-mcpu=$cpu"
3498 cortex-a*) subarch=armv7a ;;
3499 cortex-r*) subarch=armv7r ;;
3500 cortex-m*) enable thumb; subarch=armv7m ;;
3501 arm11*) subarch=armv6 ;;
3502 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3503 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3504 *) subarch=$(probe_arm_arch) ;;
3510 armv5t*) enable fast_clz ;;
3511 armv[6-8]*) enable fast_clz fast_unaligned ;;
3514 elif enabled avr32; then
3519 cpuflags="-mpart=$cpu"
3523 cpuflags="-march=$cpu"
3527 cpuflags="-mcpu=$cpu"
3531 cpuflags="-march=$cpu"
3535 elif enabled bfin; then
3537 cpuflags="-mcpu=$cpu"
3539 elif enabled mips; then
3541 cpuflags="-march=$cpu"
3543 elif enabled ppc; then
3547 case $(tolower $cpu) in
3548 601|ppc601|powerpc601)
3549 cpuflags="-mcpu=601"
3552 603*|ppc603*|powerpc603*)
3553 cpuflags="-mcpu=603"
3556 604*|ppc604*|powerpc604*)
3557 cpuflags="-mcpu=604"
3560 g3|75*|ppc75*|powerpc75*)
3561 cpuflags="-mcpu=750"
3564 g4|745*|ppc745*|powerpc745*)
3565 cpuflags="-mcpu=7450"
3568 74*|ppc74*|powerpc74*)
3569 cpuflags="-mcpu=7400"
3572 g5|970|ppc970|powerpc970)
3573 cpuflags="-mcpu=970"
3577 cpuflags="-mcpu=$cpu"
3581 cpuflags="-mcpu=$cpu"
3585 cpuflags="-mcpu=cell"
3590 cpuflags="-mcpu=e500mc"
3594 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3599 cpuflags="-mcpu=8540 -mhard-float"
3605 elif enabled sparc; then
3608 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3609 cpuflags="-mcpu=$cpu"
3611 ultrasparc*|niagara[234])
3612 cpuflags="-mcpu=$cpu"
3616 elif enabled x86; then
3620 cpuflags="-march=$cpu"
3624 # targets that do NOT support nopl and conditional mov (cmov)
3625 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3626 cpuflags="-march=$cpu"
3629 # targets that do support nopl and conditional mov (cmov)
3630 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3631 cpuflags="-march=$cpu"
3635 # targets that do support conditional mov but on which it's slow
3636 pentium4|pentium4m|prescott|nocona)
3637 cpuflags="-march=$cpu"
3645 if [ "$cpu" != generic ]; then
3646 add_cflags $cpuflags
3647 add_asflags $cpuflags
3648 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3651 # compiler sanity check
3653 int main(void){ return 0; }
3655 if test "$?" != 0; then
3656 echo "$cc is unable to create an executable file."
3657 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3658 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3659 echo "Only do this if you know what cross compiling means."
3661 die "C compiler test failed."
3664 add_cppflags -D_ISOC99_SOURCE
3665 check_cflags -std=c99
3666 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3669 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3673 add_host_cppflags -D_ISOC99_SOURCE
3674 check_host_cflags -std=c99
3675 check_host_cflags -Wall
3676 check_host_cflags -O3
3682 check_code cc "" "int test[2*($expr) - 1]" &&
3683 subarch=$arch64 || subarch=$arch32
3691 check_64bit mips mips64 '_MIPS_SIM > 1'
3695 check_64bit parisc parisc64 'sizeof(void *) > 4'
3699 check_64bit ppc ppc64 'sizeof(void *) > 4'
3703 check_64bit s390 s390x 'sizeof(void *) > 4'
3707 check_64bit sparc sparc64 'sizeof(void *) > 4'
3711 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3712 if test "$subarch" = "x86_64"; then
3719 enabled spic && enable_weak pic
3725 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3726 enabled shared && add_ldflags -Wl,-brtl
3730 enable section_data_rel_ro
3731 SLIB_INSTALL_NAME='$(SLIBNAME)'
3733 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3736 prefix_default="/boot/common"
3737 network_extralibs="-lnetwork"
3741 SHFLAGS='-shared -Wl,-h,$$(@F)'
3742 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3743 network_extralibs="-lsocket -lnsl"
3744 # When using suncc to build, the Solaris linker will mark
3745 # an executable with each instruction set encountered by
3746 # the Solaris assembler. As our libraries contain their own
3747 # guards for processor-specific code, instead suppress
3748 # generation of the HWCAPS ELF section on Solaris x86 only.
3749 enabled_all suncc x86 &&
3750 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3751 add_ldflags -Wl,-M,mapfile
3752 nm_default='nm -P -g'
3754 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3758 oss_indev_extralibs="-lossaudio"
3759 oss_outdev_extralibs="-lossaudio"
3764 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3766 oss_indev_extralibs="-lossaudio"
3767 oss_outdev_extralibs="-lossaudio"
3775 add_extralibs -lpoll -lgnugetopt
3778 enabled ppc && add_asflags -force_cpusubtype_ALL
3779 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3780 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3781 add_ldflags -Wl,-dynamic,-search_paths_first
3783 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3784 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3786 enabled x86_64 && objformat="macho64"
3787 enabled_any pic shared ||
3788 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3789 check_header dispatch/dispatch.h &&
3790 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3793 die "Native MSYS builds are discouraged, please use the MINGW environment."
3796 if test $target_os = "mingw32ce"; then
3802 if enabled x86_64; then
3803 LIBTARGET="i386:x86-64"
3804 elif enabled arm; then
3807 check_ldflags -Wl,--nxcompat
3808 check_ldflags -Wl,--dynamicbase
3809 shlibdir_default="$bindir_default"
3812 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3813 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3814 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3815 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3817 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3818 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3819 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3821 dlltool="${cross_prefix}dlltool"
3827 if enabled shared; then
3828 # Link to the import library instead of the normal static library
3831 # Cannot build both shared and static libs with MSVC or icl.
3834 shlibdir_default="$bindir_default"
3837 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3838 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3839 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3840 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3842 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3843 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3844 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3851 shlibdir_default="$bindir_default"
3854 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3855 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3856 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3858 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3859 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3863 *-dos|freedos|opendos)
3864 network_extralibs="-lsocket"
3867 add_cppflags -U__STRICT_ANSI__
3871 enable section_data_rel_ro
3875 ranlib="echo ignoring ranlib"
3880 add_cppflags -D_GNU_SOURCE
3881 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3882 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3886 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3887 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3888 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3889 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3890 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3891 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3892 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3893 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3894 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3895 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3899 add_cppflags -D_BSD_SOURCE
3904 add_cppflags -D_QNX_SOURCE
3905 network_extralibs="-lsocket"
3910 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3911 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3912 add_ldflags -Wl,--target1-abs,--no-undefined \
3913 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3914 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3915 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3916 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3917 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3920 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3925 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3926 -D_REENTRANT_SOURCE \
3927 -D_RESEARCH_SOURCE \
3930 add_compat strtod.o strtod=avpriv_strtod
3931 network_extralibs='-lbsd'
3932 exeobjs=compat/plan9/main.o
3938 die "Unknown OS '$target_os'."
3942 # determine libc flavour
3947 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3948 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3949 eval ${pfx}libc_type=uclibc
3950 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3951 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3952 eval ${pfx}libc_type=glibc
3953 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3954 # MinGW headers can be installed on Cygwin, so check for newlib first.
3955 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3956 eval ${pfx}libc_type=newlib
3957 add_${pfx}cppflags -U__STRICT_ANSI__
3958 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3959 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3960 eval ${pfx}libc_type=mingw64
3961 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3962 eval test \$${pfx_no_}cc_type = "gcc" &&
3963 add_${pfx}cppflags -D__printf__=__gnu_printf__
3964 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3965 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3966 eval ${pfx}libc_type=mingw32
3967 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3968 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3969 die "ERROR: MinGW32 runtime version must be >= 3.15."
3970 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3971 eval test \$${pfx_no_}cc_type = "gcc" &&
3972 add_${pfx}cppflags -D__printf__=__gnu_printf__
3973 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3974 eval ${pfx}libc_type=msvcrt
3975 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3976 if [ "$pfx" = host_ ]; then
3977 add_host_cppflags -Dsnprintf=_snprintf
3979 add_compat strtod.o strtod=avpriv_strtod
3980 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3981 _snprintf=avpriv_snprintf \
3982 vsnprintf=avpriv_vsnprintf
3985 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3986 # 0x601 by default unless something else is set by the user.
3987 # This can easily lead to us detecting functions only present
3988 # in such new versions and producing binaries requiring windows 7.0.
3989 # Therefore explicitly set the default to XP unless the user has
3990 # set something else on the command line.
3991 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3992 # family. For these cases, configure is free to use any functions
3993 # found in the SDK headers by default. (Alternatively, we could force
3994 # _WIN32_WINNT to 0x0602 in that case.)
3995 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3996 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3997 #ifdef WINAPI_FAMILY
3998 #include <winapifamily.h>
3999 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4004 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4005 eval ${pfx}libc_type=klibc
4006 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4007 eval ${pfx}libc_type=bionic
4008 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4009 eval ${pfx}libc_type=solaris
4010 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4012 eval ${pfx}libc_type=default
4013 add_${pfx}cppflags -D_DEFAULT_SOURCE
4018 test -n "$libc_type" && enable libc_$libc_type
4020 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4024 add_compat strtod.o strtod=avpriv_strtod
4028 # hacks for compiler/libc/os combinations
4030 if enabled_all tms470 libc_glibc; then
4031 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4032 add_cppflags -D__USER_LABEL_PREFIX__=
4033 add_cppflags -D__builtin_memset=memset
4034 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4035 add_cflags -pds=48 # incompatible redefinition of macro
4038 if enabled_all ccc libc_glibc; then
4039 add_ldflags -Wl,-z,now # calls to libots crash without this
4042 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4043 add_cppflags '-I\$(SRC_PATH)/compat/float'
4046 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4049 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4051 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4053 set_default $PATHS_LIST
4056 # we need to build at least one lib type
4057 if ! enabled_any static shared; then
4059 At least one library type must be built.
4060 Specify --enable-static to build the static libraries or --enable-shared to
4061 build the shared libraries as well. To only build the shared libraries specify
4062 --disable-static in addition to --enable-shared.
4067 die_license_disabled() {
4068 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4071 die_license_disabled gpl libcdio
4072 die_license_disabled gpl libx264
4073 die_license_disabled gpl libx265
4074 die_license_disabled gpl libxavs
4075 die_license_disabled gpl libxvid
4076 die_license_disabled gpl x11grab
4078 die_license_disabled nonfree cuda
4079 die_license_disabled nonfree libfaac
4080 die_license_disabled nonfree libfdk_aac
4081 die_license_disabled nonfree libnpp
4082 die_license_disabled nonfree openssl
4084 die_license_disabled version3 libopencore_amrnb
4085 die_license_disabled version3 libopencore_amrwb
4086 die_license_disabled version3 libvo_aacenc
4087 die_license_disabled version3 libvo_amrwbenc
4089 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4091 disabled optimizations || check_cflags -fomit-frame-pointer
4094 disabled pic && return
4097 case "$target_os" in
4107 enabled pic && enable_weak_pic
4109 check_cc <<EOF || die "Symbol mangling check failed."
4112 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4113 extern_prefix=${sym%%ff_extern*}
4115 check_cc <<EOF && enable_weak inline_asm
4116 void foo(void) { __asm__ volatile ("" ::); }
4120 for restrict_keyword in restrict __restrict__ __restrict; do
4121 check_cc <<EOF && _restrict=$restrict_keyword && break
4122 void foo(char * $restrict_keyword p);
4126 check_cc <<EOF && enable pragma_deprecated
4127 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4130 check_cc <<EOF && enable attribute_packed
4131 struct { int x; } __attribute__((packed)) x;
4134 check_cc <<EOF && enable attribute_may_alias
4135 union { int x; } __attribute__((may_alias)) x;
4138 check_cc <<EOF || die "endian test failed"
4139 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4141 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4144 log "check_gas using '$as' as AS"
4145 # :vararg is used on aarch64, arm and ppc altivec
4146 check_as <<EOF || return 1
4147 .macro m n, y:vararg=0
4152 # .altmacro is only used in arm asm
4153 ! enabled arm || check_as <<EOF || return 1
4160 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4162 enabled_any arm aarch64 && nogas=die
4163 enabled_all ppc altivec && nogas=warn
4167 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4168 gcc) gaspp_as_type=gas ;;
4169 *) gaspp_as_type=$as_type ;;
4172 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4174 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4175 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4177 if ! check_gas ; then
4180 $nogas "GNU assembler not found, install/update gas-preprocessor"
4183 check_as <<EOF && enable as_func
4189 check_inline_asm inline_asm_labels '"1:\n"'
4191 if enabled aarch64; then
4192 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4193 # internal assembler in clang 3.3 does not support this instruction
4194 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4195 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4197 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4199 elif enabled alpha; then
4203 elif enabled arm; then
4205 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4206 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4207 enabled thumb && check_cflags -mthumb || check_cflags -marm
4209 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4211 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4213 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4214 case "${cross_prefix:-$cc}" in
4215 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4216 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4217 __asm__ (".eabi_attribute 28, 1");
4218 int main(void) { return 0; }
4221 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4224 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4225 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4226 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4227 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4228 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4229 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4231 [ $target_os = linux ] || [ $target_os = android ] ||
4232 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4235 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4237 check_as <<EOF && enable as_dn_directive
4242 # llvm's integrated assembler supports .object_arch from llvm 3.5
4243 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4247 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4249 elif enabled mips; then
4251 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4253 # make sure that only an instruction set is enabled
4254 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4256 if enabled mips64; then
4257 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4258 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4259 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4261 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4262 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4263 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4266 elif enabled parisc; then
4268 if enabled gcc; then
4269 case $($cc -dumpversion) in
4270 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4274 elif enabled ppc; then
4276 enable local_aligned_8 local_aligned_16
4278 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4279 check_inline_asm ibm_asm '"add 0, 0, 0"'
4280 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4281 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4283 # AltiVec flags: The FSF version of GCC differs from the Apple version
4284 if enabled altivec; then
4285 check_cflags -maltivec -mabi=altivec &&
4286 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4287 check_cflags -faltivec
4289 # check if our compiler supports Motorola AltiVec C API
4290 check_cc <<EOF || disable altivec
4293 vector signed int v1 = (vector signed int) { 0 };
4294 vector signed int v2 = (vector signed int) { 1 };
4295 v1 = vec_add(v1, v2);
4300 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4303 if enabled vsx; then
4304 check_cflags -mvsx &&
4305 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4308 if enabled power8; then
4309 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4312 elif enabled x86; then
4314 check_builtin rdtsc intrin.h "__rdtsc()"
4315 check_builtin mm_empty mmintrin.h "_mm_empty()"
4317 enable local_aligned_8 local_aligned_16
4319 # check whether EBP is available on x86
4320 # As 'i' is stored on the stack, this program will crash
4321 # if the base pointer is used to access it because the
4322 # base pointer is cleared in the inline assembly code.
4323 check_exec_crash <<EOF && enable ebp_available
4325 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4329 # check whether EBX is available on x86
4330 check_inline_asm ebx_available '""::"b"(0)' &&
4331 check_inline_asm ebx_available '"":::"%ebx"'
4333 # check whether xmm clobbers are supported
4334 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4336 # check whether binutils is new enough to compile SSSE3/MMXEXT
4337 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4338 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4340 if ! disabled_any asm mmx yasm; then
4341 if check_cmd $yasmexe --version; then
4342 enabled x86_64 && yasm_extra="-m amd64"
4343 yasm_debug="-g dwarf2"
4344 elif check_cmd nasm -v; then
4346 yasm_debug="-g -F dwarf"
4347 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4350 YASMFLAGS="-f $objformat $yasm_extra"
4351 enabled pic && append YASMFLAGS "-DPIC"
4352 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4353 case "$objformat" in
4354 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4357 check_yasm "movbe ecx, [5]" && enable yasm ||
4358 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4359 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4360 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4361 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4362 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4363 check_yasm "CPU amdnop" || disable cpunop
4367 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4374 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4376 check_ldflags -Wl,--as-needed
4378 if check_func dlopen; then
4380 elif check_func dlopen -ldl; then
4384 if ! disabled network; then
4385 check_func getaddrinfo $network_extralibs
4386 check_func inet_aton $network_extralibs
4388 check_type netdb.h "struct addrinfo"
4389 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4390 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4391 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4392 check_type poll.h "struct pollfd"
4393 check_type netinet/sctp.h "struct sctp_event_subscribe"
4394 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4395 check_type netinet/in.h "struct sockaddr_in6"
4396 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4397 check_type "sys/types.h sys/socket.h" socklen_t
4399 # Prefer arpa/inet.h over winsock2
4400 if check_header arpa/inet.h ; then
4401 check_func closesocket
4402 elif check_header winsock2.h ; then
4403 check_func_headers winsock2.h closesocket -lws2 &&
4404 network_extralibs="-lws2" ||
4405 { check_func_headers winsock2.h closesocket -lws2_32 &&
4406 network_extralibs="-lws2_32"; } || disable winsock2_h network
4407 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4409 check_type ws2tcpip.h socklen_t
4410 check_type ws2tcpip.h "struct addrinfo"
4411 check_type ws2tcpip.h "struct group_source_req"
4412 check_type ws2tcpip.h "struct ip_mreq_source"
4413 check_type ws2tcpip.h "struct ipv6_mreq"
4414 check_type winsock2.h "struct pollfd"
4415 check_struct winsock2.h "struct sockaddr" sa_len
4416 check_type ws2tcpip.h "struct sockaddr_in6"
4417 check_type ws2tcpip.h "struct sockaddr_storage"
4423 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4424 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4425 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4426 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4428 case "$custom_allocator" in
4430 # jemalloc by default does not use a prefix
4431 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4434 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4439 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4440 check_func ${malloc_prefix}memalign && enable memalign
4441 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4443 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4444 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4448 check_func gethrtime
4450 check_func getrusage
4451 check_func gettimeofday
4454 check_func localtime_r
4455 check_func mach_absolute_time
4459 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4460 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4461 check_func sched_getaffinity
4462 check_func setrlimit
4463 check_func strerror_r
4468 check_func_headers io.h setmode
4469 check_func_headers stdlib.h getenv
4471 check_func_headers windows.h CoTaskMemFree -lole32
4472 check_func_headers windows.h GetProcessAffinityMask
4473 check_func_headers windows.h GetProcessTimes
4474 check_func_headers windows.h GetSystemTimeAsFileTime
4475 check_func_headers windows.h LoadLibrary
4476 check_func_headers windows.h MapViewOfFile
4477 check_func_headers windows.h SetConsoleTextAttribute
4478 check_func_headers windows.h Sleep
4479 check_func_headers windows.h VirtualAlloc
4480 check_struct windows.h "CONDITION_VARIABLE" Ptr
4482 check_header direct.h
4483 check_header dlfcn.h
4484 check_header d3d11.h
4486 check_header dxva2api.h
4488 check_header mach/mach_time.h
4489 check_header malloc.h
4491 check_header sys/mman.h
4492 check_header sys/param.h
4493 check_header sys/resource.h
4494 check_header sys/select.h
4495 check_header sys/time.h
4496 check_header sys/un.h
4497 check_header unistd.h
4498 check_header valgrind/valgrind.h
4499 check_header vdpau/vdpau.h
4500 check_header vdpau/vdpau_x11.h
4501 check_header VideoDecodeAcceleration/VDADecoder.h
4502 check_header windows.h
4503 check_header X11/extensions/XvMClib.h
4505 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4506 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4507 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4509 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4511 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4512 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4513 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4515 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4516 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4517 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4518 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4520 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4522 if ! disabled w32threads && ! enabled pthreads; then
4523 check_func_headers "windows.h process.h" _beginthreadex &&
4524 enable w32threads || disable w32threads
4527 # check for some common methods of building with pthread support
4528 # do this before the optional library checks as some of them require pthreads
4529 if ! disabled pthreads && ! enabled w32threads; then
4531 if check_func pthread_join -pthread; then
4533 add_extralibs -pthread
4534 elif check_func pthread_join -pthreads; then
4535 add_cflags -pthreads
4536 add_extralibs -pthreads
4537 elif check_func pthread_join -lpthreadGC2; then
4538 add_extralibs -lpthreadGC2
4539 elif check_lib pthread.h pthread_join -lpthread; then
4541 elif ! check_func pthread_join; then
4547 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
4549 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4550 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4552 check_lib math.h sin -lm && LIBM="-lm"
4553 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4559 for func in $MATH_FUNCS; do
4560 eval check_mathfunc $func \${${func}_args:-1}
4563 # these are off by default, so fail if requested and not available
4564 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4565 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4566 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4567 enabled cuda && check_lib cuda.h cuInit -lcuda
4568 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4569 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4570 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4571 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4572 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4573 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4574 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4575 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4576 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4577 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4578 done || die "ERROR: libgsm not found"; }
4579 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4580 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4581 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4582 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4583 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4584 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4585 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4586 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4587 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4588 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4589 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4590 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4591 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4592 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4593 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4594 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4595 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4596 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4597 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4598 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4599 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4600 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4601 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4602 enabled libvpx_vp8_decoder && {
4603 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4604 disable libvpx_vp8_decoder;
4606 enabled libvpx_vp8_encoder && {
4607 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4608 disable libvpx_vp8_encoder;
4610 enabled libvpx_vp9_decoder && {
4611 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4612 disable libvpx_vp9_decoder;
4614 enabled libvpx_vp9_encoder && {
4615 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4616 disable libvpx_vp9_encoder;
4618 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4619 die "libvpx enabled but no supported decoders found"
4622 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4623 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4624 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4625 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4626 die "ERROR: libx264 version must be >= 0.118."; } &&
4627 { check_cpp_condition x264.h "X264_MPEG2" &&
4629 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4630 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4631 die "ERROR: libx265 version must be >= 57."; }
4632 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4633 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4634 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4635 { ! enabled cross_compile && {
4636 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4637 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4638 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4639 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4640 die "ERROR: mmal not found"; }
4641 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
4642 enabled omx_rpi && enable omx
4643 enabled omx && { check_header OMX_Core.h ||
4644 { ! enabled cross_compile && enabled omx_rpi && {
4645 add_cflags -isystem/opt/vc/include/IL ; }
4646 check_header OMX_Core.h ; } ||
4647 die "ERROR: OpenMAX IL headers not found"; }
4648 enabled openssl && { check_pkg_config openssl openssl/ssl.h SSL_library_init && {
4649 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4650 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4651 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4652 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4653 die "ERROR: openssl not found"; }
4655 if enabled gnutls; then
4656 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4657 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4661 if enabled libdc1394; then
4662 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4663 enable libdc1394_2; } ||
4664 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4665 enable libdc1394_1; } ||
4666 die "ERROR: No version of libdc1394 found "
4669 if enabled nvenc; then
4670 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."
4671 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
4672 die "ERROR: NVENC API version 5 or older is not supported"
4675 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4676 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4677 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4681 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4682 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4684 check_header linux/fb.h
4685 check_header linux/videodev2.h
4686 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4688 check_header AVFoundation/AVFoundation.h &&
4689 check_objcflags -fobjc-arc &&
4690 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4691 disable AVFoundation_AVFoundation_h
4693 check_header sys/videoio.h
4695 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4696 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4697 # w32api 3.12 had it defined wrong
4698 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4700 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4701 { check_header dev/bktr/ioctl_meteor.h &&
4702 check_header dev/bktr/ioctl_bt848.h; } ||
4703 { check_header machine/ioctl_meteor.h &&
4704 check_header machine/ioctl_bt848.h; } ||
4705 { check_header dev/video/meteor/ioctl_meteor.h &&
4706 check_header dev/video/bktr/ioctl_bt848.h; } ||
4707 check_header dev/ic/bt8xx.h
4709 check_header sndio.h
4710 check_header sys/soundcard.h
4711 check_header soundcard.h
4713 enabled_any alsa_indev alsa_outdev &&
4714 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4716 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4717 check_func jack_port_get_latency_range -ljack
4719 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4721 if enabled libcdio; then
4722 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4723 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4724 die "ERROR: No usable libcdio/cdparanoia found"
4727 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4729 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4730 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4731 enabled libxcb && die "ERROR: libxcb not found";
4732 } && disable x11grab && enable libxcb
4734 disabled libxcb_shm ||
4735 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4736 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4737 } && check_header sys/shm.h && enable libxcb_shm
4739 disabled libxcb_xfixes ||
4740 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4741 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4742 } && enable libxcb_xfixes
4744 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4745 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4748 if enabled x11grab; then
4749 enabled xlib || die "ERROR: Xlib not found"
4750 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4751 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4755 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4758 if enabled vaapi ; then
4760 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4763 check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
4768 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4771 enabled vdpau && enabled xlib &&
4772 check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4775 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4777 # add some useful compiler flags if supported
4778 check_cflags -Wdeclaration-after-statement
4780 check_cflags -Wdisabled-optimization
4781 check_cflags -Wpointer-arith
4782 check_cflags -Wredundant-decls
4783 check_cflags -Wwrite-strings
4784 check_cflags -Wtype-limits
4785 check_cflags -Wundef
4786 check_cflags -Wmissing-prototypes
4787 check_cflags -Wstrict-prototypes
4788 enabled extra_warnings && check_cflags -Winline
4789 enabled extra_warnings && check_cflags -Wcast-qual
4791 check_disable_warning(){
4792 warning_flag=-W${1#-Wno-}
4793 test_cflags $warning_flag && add_cflags $1
4796 check_disable_warning -Wno-parentheses
4797 check_disable_warning -Wno-switch
4798 check_disable_warning -Wno-format-zero-length
4799 check_disable_warning -Wno-pointer-sign
4801 # add some linker flags
4802 check_ldflags -Wl,--warn-common
4803 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4804 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4805 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4807 # add some strip flags
4808 # -wN '..@*' is more selective than -x, but not available everywhere.
4809 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4811 enabled neon_clobber_test &&
4812 check_ldflags -Wl,--wrap,avcodec_open2 \
4813 -Wl,--wrap,avcodec_decode_audio4 \
4814 -Wl,--wrap,avcodec_decode_video2 \
4815 -Wl,--wrap,avcodec_decode_subtitle2 \
4816 -Wl,--wrap,avcodec_encode_audio2 \
4817 -Wl,--wrap,avcodec_encode_video2 \
4818 -Wl,--wrap,avcodec_encode_subtitle \
4819 -Wl,--wrap,avresample_convert ||
4820 disable neon_clobber_test
4822 enabled xmm_clobber_test &&
4823 check_ldflags -Wl,--wrap,avcodec_open2 \
4824 -Wl,--wrap,avcodec_decode_audio4 \
4825 -Wl,--wrap,avcodec_decode_video2 \
4826 -Wl,--wrap,avcodec_decode_subtitle2 \
4827 -Wl,--wrap,avcodec_encode_audio2 \
4828 -Wl,--wrap,avcodec_encode_video2 \
4829 -Wl,--wrap,avcodec_encode_subtitle \
4830 -Wl,--wrap,avresample_convert \
4831 -Wl,--wrap,sws_scale ||
4832 disable xmm_clobber_test
4834 check_ld <<EOF && enable proper_dce
4835 extern const int array[512];
4836 static inline int func(void) { return array[0]; }
4837 int main(void) { return 0; }
4840 if enabled proper_dce; then
4841 echo "X { local: *; };" > $TMPV
4842 if test_ldflags -Wl,${version_script},$TMPV; then
4843 append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
4844 check_cc <<EOF && enable symver_asm_label
4845 void ff_foo(void) __asm__ ("av_foo@VERSION");
4846 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4848 check_cc <<EOF && enable symver_gnu_asm
4849 __asm__(".symver ff_foo,av_foo@VERSION");
4850 void ff_foo(void) {}
4855 if [ -z "$optflags" ]; then
4856 if enabled small; then
4857 optflags=$cflags_size
4858 elif enabled optimizations; then
4859 optflags=$cflags_speed
4861 optflags=$cflags_noopt
4867 enabled lto && check_ldflags "$@"
4871 if enabled lto; then
4872 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4874 check_ldflags -flto $cpuflags
4877 check_optflags $optflags
4878 check_optflags -fno-math-errno
4879 check_optflags -fno-signed-zeros
4881 if enabled icc; then
4882 # Just warnings, no remarks
4884 # -wd: Disable following warnings
4885 # 144, 167, 556: -Wno-pointer-sign
4886 # 1292: attribute "foo" ignored
4887 # 1419: external declaration in primary source file
4888 # 10006: ignoring unknown option -fno-signed-zeros
4889 # 10148: ignoring unknown option -Wno-parentheses
4890 # 10156: ignoring option '-W'; no argument required
4891 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4892 # 11030: Warning unknown option --as-needed
4893 # 10156: ignoring option '-export'; no argument required
4894 check_ldflags -wd10156,11030
4895 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4896 enable ebp_available
4897 if enabled x86_32; then
4898 icc_version=$($cc -dumpversion)
4899 test ${icc_version%%.*} -ge 11 &&
4900 check_cflags -falign-stack=maintain-16-byte ||
4901 disable aligned_stack
4903 elif enabled ccc; then
4904 # disable some annoying warnings
4905 add_cflags -msg_disable bitnotint
4906 add_cflags -msg_disable mixfuncvoid
4907 add_cflags -msg_disable nonstandcast
4908 add_cflags -msg_disable unsupieee
4909 elif enabled gcc; then
4910 check_optflags -fno-tree-vectorize
4911 check_cflags -Werror=implicit-function-declaration
4912 check_cflags -Werror=missing-prototypes
4913 check_cflags -Werror=return-type
4914 check_cflags -Werror=declaration-after-statement
4915 check_cflags -Werror=vla
4916 check_cflags -Werror=format-security
4917 check_cflags -fdiagnostics-color=auto
4918 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4919 elif enabled llvm_gcc; then
4920 check_cflags -mllvm -stack-alignment=16
4921 elif enabled clang; then
4922 check_cflags -mllvm -stack-alignment=16
4923 check_cflags -Qunused-arguments
4924 check_cflags -Werror=implicit-function-declaration
4925 check_cflags -Werror=missing-prototypes
4926 check_cflags -Werror=return-type
4927 elif enabled cparser; then
4928 add_cflags -Wno-missing-variable-declarations
4929 add_cflags -Wno-empty-statement
4930 elif enabled armcc; then
4931 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4932 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4933 # 2523: use of inline assembly is deprecated
4934 add_cflags -W${armcc_opt},--diag_suppress=2523
4935 add_cflags -W${armcc_opt},--diag_suppress=1207
4936 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4937 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4938 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4939 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4940 elif enabled tms470; then
4941 add_cflags -pds=824 -pds=837
4943 elif enabled pathscale; then
4944 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4945 elif enabled_any msvc icl; then
4946 enabled x86_32 && disable aligned_stack
4947 enabled_all x86_32 debug && add_cflags -Oy-
4948 enabled debug && add_ldflags -debug
4949 enable pragma_deprecated
4950 if enabled icl; then
4951 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4952 # (correctly) on icl 13.x.
4953 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4954 add_cflags -Qansi-alias
4955 # icl will pass the inline asm tests but inline asm is currently
4956 # not supported (build will fail)
4959 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4960 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4961 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4962 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4963 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4964 # MSVC 2013 and newer can handle it fine.
4965 # If this declspec fails, force including stdlib.h before the restrict redefinition
4966 # happens in config.h.
4967 if [ $_restrict != restrict ]; then
4968 check_cc <<EOF || add_cflags -FIstdlib.h
4969 __declspec($_restrict) void* foo(int);
4972 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4975 for pfx in "" host_; do
4976 varname=${pfx%_}cc_type
4977 eval "type=\$$varname"
4978 if [ $type = "msvc" ]; then
4979 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4980 static inline int foo(int a) { return a; }
4987 add_asflags -Qunused-arguments
4993 check_ldflags -Qunused-arguments
4999 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5002 add_cppflags -Dmain=plan9_main
5006 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5008 check_deps $CONFIG_LIST \
5013 enabled_all dxva2 CoTaskMemFree &&
5014 prepend avconv_libs $($ldflags_filter "-lole32") &&
5017 ! enabled_any memalign posix_memalign aligned_malloc &&
5018 enabled simd_align_16 && enable memalign_hack
5020 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5022 for thread in $THREADS_LIST; do
5023 if enabled $thread; then
5024 test -n "$thread_type" &&
5025 die "ERROR: Only one thread type must be selected." ||
5026 thread_type="$thread"
5030 enabled zlib && add_cppflags -DZLIB_CONST
5032 # conditional library dependencies, in linking order
5033 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5034 enabled resample_filter && prepend avfilter_deps "avresample"
5035 enabled scale_filter && prepend avfilter_deps "swscale"
5037 enabled opus_decoder && prepend avcodec_deps "avresample"
5041 eval "deps=\$$lib_deps"
5042 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5046 map 'expand_deps $v' $LIBRARY_LIST
5048 echo "install prefix $prefix"
5049 echo "source path $source_path"
5050 echo "C compiler $cc"
5051 echo "C library $libc_type"
5052 if test "$host_cc" != "$cc"; then
5053 echo "host C compiler $host_cc"
5054 echo "host C library $host_libc_type"
5056 echo "ARCH $arch ($cpu)"
5057 if test "$build_suffix" != ""; then
5058 echo "build suffix $build_suffix"
5060 if test "$extra_version" != ""; then
5061 echo "version string suffix $extra_version"
5063 echo "big-endian ${bigendian-no}"
5064 echo "runtime cpu detection ${runtime_cpudetect-no}"
5065 if enabled x86; then
5066 echo "${yasmexe} ${yasm-no}"
5067 echo "MMX enabled ${mmx-no}"
5068 echo "MMXEXT enabled ${mmxext-no}"
5069 echo "3DNow! enabled ${amd3dnow-no}"
5070 echo "3DNow! extended enabled ${amd3dnowext-no}"
5071 echo "SSE enabled ${sse-no}"
5072 echo "SSSE3 enabled ${ssse3-no}"
5073 echo "AVX enabled ${avx-no}"
5074 echo "XOP enabled ${xop-no}"
5075 echo "FMA3 enabled ${fma3-no}"
5076 echo "FMA4 enabled ${fma4-no}"
5077 echo "i686 features enabled ${i686-no}"
5078 echo "CMOV is fast ${fast_cmov-no}"
5079 echo "EBX available ${ebx_available-no}"
5080 echo "EBP available ${ebp_available-no}"
5082 if enabled aarch64; then
5083 echo "NEON enabled ${neon-no}"
5084 echo "VFP enabled ${vfp-no}"
5086 if enabled arm; then
5087 echo "ARMv5TE enabled ${armv5te-no}"
5088 echo "ARMv6 enabled ${armv6-no}"
5089 echo "ARMv6T2 enabled ${armv6t2-no}"
5090 echo "VFP enabled ${vfp-no}"
5091 echo "NEON enabled ${neon-no}"
5093 if enabled ppc; then
5094 echo "AltiVec enabled ${altivec-no}"
5095 echo "VSX enabled ${vsx-no}"
5096 echo "POWER8 enabled ${power8-no}"
5097 echo "PPC 4xx optimizations ${ppc4xx-no}"
5098 echo "dcbzl available ${dcbzl-no}"
5100 echo "debug symbols ${debug-no}"
5101 echo "optimize for size ${small-no}"
5102 echo "optimizations ${optimizations-no}"
5103 echo "static ${static-no}"
5104 echo "shared ${shared-no}"
5105 echo "new filter support ${avfilter-no}"
5106 echo "network support ${network-no}"
5107 echo "threading support ${thread_type-no}"
5108 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5109 echo "SDL support ${sdl-no}"
5110 test -n "$random_seed" &&
5111 echo "random seed ${random_seed}"
5114 echo "External libraries:"
5115 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5117 echo "External libraries providing hardware acceleration:"
5118 print_enabled '' $HWACCEL_LIBRARY_LIST | print_3_columns
5122 print_enabled '' $LIBRARY_LIST | print_3_columns
5125 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5126 echo "Enabled ${type}s:"
5127 eval list=\$$(toupper $type)_LIST
5128 print_enabled '_*' $list | print_3_columns
5132 license="LGPL version 2.1 or later"
5133 if enabled nonfree; then
5134 license="nonfree and unredistributable"
5135 elif enabled gplv3; then
5136 license="GPL version 3 or later"
5137 elif enabled lgplv3; then
5138 license="LGPL version 3 or later"
5139 elif enabled gpl; then
5140 license="GPL version 2 or later"
5143 echo "License: $license"
5145 echo "Creating config.mak and config.h..."
5147 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5149 config_files="$TMPH config.mak"
5151 cat > config.mak <<EOF
5152 # Automatically generated by configure - do not modify!
5153 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5155 LIBDIR=\$(DESTDIR)$libdir
5156 SHLIBDIR=\$(DESTDIR)$shlibdir
5157 INCDIR=\$(DESTDIR)$incdir
5158 BINDIR=\$(DESTDIR)$bindir
5159 DATADIR=\$(DESTDIR)$datadir
5160 DOCDIR=\$(DESTDIR)$docdir
5161 MANDIR=\$(DESTDIR)$mandir
5162 SRC_PATH=$source_path
5165 INTRINSICS=$intrinsics
5172 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5174 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5185 OBJCFLAGS=$OBJCFLAGS
5200 LDEXEFLAGS=$LDEXEFLAGS
5201 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5202 STRIPFLAGS=$STRIPFLAGS
5203 YASMFLAGS=$YASMFLAGS
5204 BUILDSUF=$build_suffix
5212 EXTRA_VERSION=$extra_version
5214 CCDEP_FLAGS=$CCDEP_FLAGS
5216 ASDEP_FLAGS=$ASDEP_FLAGS
5217 CC_DEPFLAGS=$CC_DEPFLAGS
5218 AS_DEPFLAGS=$AS_DEPFLAGS
5221 HOSTCFLAGS=$host_cflags
5222 HOSTCPPFLAGS=$host_cppflags
5223 HOSTEXESUF=$HOSTEXESUF
5224 HOSTLDFLAGS=$host_ldflags
5227 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5228 HOSTCCDEP=$HOSTCCDEP
5229 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5230 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5234 TARGET_EXEC=$target_exec $target_exec_args
5235 TARGET_PATH=$target_path
5236 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5237 CFLAGS-avplay=$sdl_cflags
5238 ZLIB=$($ldflags_filter -lz)
5239 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5240 EXTRALIBS=$extralibs
5241 COMPAT_OBJS=$compat_objs
5244 LIBTARGET=${LIBTARGET}
5245 SLIBNAME=${SLIBNAME}
5246 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5247 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5248 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5249 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5250 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5251 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5252 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5253 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5254 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
5255 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5260 name=$(toupper $lcname)
5261 file=$source_path/$lcname/version.h
5262 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5263 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5264 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5265 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5266 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5269 map 'get_version $v' $LIBRARY_LIST
5271 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5273 print_program_libs(){
5274 eval "program_libs=\$${1}_libs"
5275 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5278 map 'print_program_libs $v' $PROGRAM_LIST
5281 /* Automatically generated by configure - do not modify! */
5282 #ifndef LIBAV_CONFIG_H
5283 #define LIBAV_CONFIG_H
5284 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5285 #define LIBAV_LICENSE "$(c_escape $license)"
5286 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5287 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5288 #define restrict $_restrict
5289 #define EXTERN_PREFIX "${extern_prefix}"
5290 #define EXTERN_ASM ${extern_prefix}
5291 #define SLIBSUF "$SLIBSUF"
5294 test -n "$malloc_prefix" &&
5295 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5297 if enabled yasm; then
5298 append config_files $TMPASM
5302 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5304 print_config ARCH_ "$config_files" $ARCH_LIST
5305 print_config HAVE_ "$config_files" $HAVE_LIST
5306 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5310 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5312 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5313 cp_if_changed $TMPH config.h
5316 enabled yasm && cp_if_changed $TMPASM config.asm
5319 /* Generated by ffconf */
5320 #ifndef AVUTIL_AVCONFIG_H
5321 #define AVUTIL_AVCONFIG_H
5324 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5326 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5328 cp_if_changed $TMPH libavutil/avconfig.h
5330 test -n "$WARNINGS" && printf "\n$WARNINGS"
5332 # generate the lists of enabled components
5333 print_enabled_components(){
5338 echo "static const $struct_name *$name[] = {" > $TMPH
5340 enabled $c && printf " &ff_%s,\n" $c >> $TMPH
5342 echo " NULL };" >> $TMPH
5343 cp_if_changed $TMPH $file
5346 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5347 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5349 # build pkg-config files
5352 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5355 pkgconfig_generate(){
5357 shortname=${name#lib}${build_suffix}
5361 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5362 requires=${requires%, }
5363 enabled ${name#lib} || return 0
5365 cat <<EOF > $name/$name.pc
5367 exec_prefix=\${prefix}
5372 Description: $comment
5374 Requires: $(enabled shared || echo $requires)
5375 Requires.private: $(enabled shared && echo $requires)
5377 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5378 Libs.private: $(enabled shared && echo $libs)
5379 Cflags: -I\${includedir}
5381 cat <<EOF > $name/$name-uninstalled.pc
5384 libdir=\${pcfiledir}
5385 includedir=${source_path}
5388 Description: $comment
5392 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5393 Cflags: -I\${includedir}
5397 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5398 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5399 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5400 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5401 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5402 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5403 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"