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-libhdcd HDCD decoding filter
201 --enable-libilbc ILBC audio encoding/decoding
202 --enable-libkvazaar HEVC video encoding
203 --enable-libmp3lame MP3 audio encoding
204 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
205 --enable-libopencore-amrwb AMR-WB audio decoding
206 --enable-libopencv computer vision
207 --enable-libopenh264 H.264 video encoding/decoding
208 --enable-libopenjpeg JPEG 2000 image encoding/decoding
209 --enable-libopus Opus audio encoding/decoding
210 --enable-libpulse Pulseaudio sound server
211 --enable-librtmp RTMP streaming
212 --enable-libschroedinger Dirac video encoding/decoding
213 --enable-libsnappy snappy compression
214 --enable-libspeex Speex audio encoding/decoding
215 --enable-libtheora Theora video encoding/decoding
216 --enable-libtwolame MP2 audio encoding
217 --enable-libvo-aacenc AAC audio encoding
218 --enable-libvo-amrwbenc AMR-WB audio encoding
219 --enable-libvorbis Vorbis audio encoding/decoding
220 --enable-libvpx VP* video encoding/decoding
221 --enable-libwavpack Wavpack audio encoding/decoding
222 --enable-libwebp WebP image encoding/decoding
223 --enable-libx264 H.264 video encoding
224 --enable-libx265 HEVC video encoding
225 --enable-libxavs Chinese AVS video encoding
226 --enable-libxcb X window system protocol communication
227 --enable-libxcb-shm X11 shm communication [auto]
228 --enable-libxcb-xfixes X11 mouse rendering [auto]
229 --enable-libxvid MPEG-4 ASP video encoding
230 --enable-openssl crypto
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-sram allow use of on-chip SRAM
299 Optimization options (experts only):
300 --disable-asm disable all assembly optimizations
301 --disable-altivec disable AltiVec optimizations
302 --disable-vsx disable VSX optimizations
303 --disable-power8 disable POWER8 optimizations
304 --disable-amd3dnow disable 3DNow! optimizations
305 --disable-amd3dnowext disable 3DNow! extended optimizations
306 --disable-mmx disable MMX optimizations
307 --disable-mmxext disable MMXEXT optimizations
308 --disable-sse disable SSE optimizations
309 --disable-sse2 disable SSE2 optimizations
310 --disable-sse3 disable SSE3 optimizations
311 --disable-ssse3 disable SSSE3 optimizations
312 --disable-sse4 disable SSE4 optimizations
313 --disable-sse42 disable SSE4.2 optimizations
314 --disable-avx disable AVX optimizations
315 --disable-xop disable XOP optimizations
316 --disable-fma3 disable FMA3 optimizations
317 --disable-fma4 disable FMA4 optimizations
318 --disable-avx2 disable AVX2 optimizations
319 --disable-armv5te disable armv5te optimizations
320 --disable-armv6 disable armv6 optimizations
321 --disable-armv6t2 disable armv6t2 optimizations
322 --disable-vfp disable VFP optimizations
323 --disable-neon disable NEON optimizations
324 --disable-inline-asm disable use of inline assembly
325 --disable-yasm disable use of nasm/yasm assembly
327 Developer options (useful when working on Libav itself):
328 --disable-debug disable debugging symbols
329 --enable-debug=LEVEL set the debug level [$debuglevel]
330 --disable-optimizations disable compiler optimizations
331 --enable-extra-warnings enable more compiler warnings
332 --samples=PATH location of test samples for FATE, if not set use
333 \$LIBAV_SAMPLES at make invocation time.
334 --enable-neon-clobber-test check NEON registers for clobbering (should be
335 used only for debugging purposes)
336 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
337 should be used only for debugging purposes)
338 --enable-random randomly enable/disable components
340 --enable-random=LIST randomly enable/disable specific components or
341 --disable-random=LIST component groups. LIST is a comma-separated list
342 of NAME[:PROB] entries where NAME is a component
343 (group) and PROB the probability associated with
345 --random-seed=VALUE seed value for --enable/disable-random
346 --disable-valgrind-backtrace do not print a backtrace under Valgrind
347 (only applies to --disable-optimizations builds)
349 NOTE: Object files are built at the place where configure is launched.
357 echo "$@" >> $logfile
364 printf '%5s %s\n' "${i}" "${line}"
366 done < $1 >> $logfile
377 WARNINGS="${WARNINGS}WARNING: $*\n"
384 If you think configure made a mistake, make sure you are using the latest
385 version from Git. If the latest version fails, report the problem to the
386 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
388 if disabled logging; then
390 Rerun configure with logging enabled (do not use --disable-logging), and
391 include the log this produces with your report.
395 Include the log file "$logfile" produced by configure as this will help
402 # Avoid locale weirdness, besides we really just want to translate ASCII.
404 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
408 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
412 echo "$*" | sed 's/["\\]/\\\0/g'
416 v=$(echo "$1" | sed "s/'/'\\\\''/g")
417 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
422 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
429 eval "case $v in $pat) echo $v ;; esac"
437 eval "case $v in $pat) ;; *) echo $v ;; esac"
444 for v; do eval $m; done
450 for v; do echo ${v}${suffix}; done
465 eval : \${$var:=$value}
470 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
476 eval $(sanitize_var_name "$var")='$*'
480 eval echo \$$(sanitize_var_name "$1")
485 eval level=\${${pvar}_level:=0}
486 eval ${pvar}_${level}="\$$pvar"
487 eval ${pvar}_level=$(($level+1))
493 eval level=\${${pvar}_level:-0}
494 test $level = 0 && continue
495 eval level=$(($level-1))
496 eval $pvar="\${${pvar}_${level}}"
497 eval ${pvar}_level=$level
498 eval unset ${pvar}_${level}
520 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
526 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
532 enabled $var && continue
533 eval sel="\$${var}_select"
534 eval sgs="\$${var}_suggest"
538 enable_deep_weak $sgs
550 disabled $var && continue
559 test "${1#!}" = "$1" && op== || op=!=
560 eval test "x\$${1#!}" $op "xyes"
564 test "${1#!}" = "$1" && op== || op=!=
565 eval test "x\$${1#!}" $op "xno"
570 enabled $opt || return 1
576 disabled $opt || return 1
582 enabled $opt && return 0
588 disabled $opt && return 0
595 eval : \${$opt:=\$${opt}_default}
603 [ $var = $value ] && return 0
611 enabled ${cfg}_checking && die "Circular dependency for $cfg."
612 disabled ${cfg}_checking && continue
613 enable ${cfg}_checking
616 eval dep_all="\$${cfg}_deps"
617 eval dep_any="\$${cfg}_deps_any"
618 eval dep_sel="\$${cfg}_select"
619 eval dep_sgs="\$${cfg}_suggest"
620 eval dep_ifa="\$${cfg}_if"
621 eval dep_ifn="\$${cfg}_if_any"
623 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
624 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
625 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
628 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
629 enabled_all $dep_all || disable $cfg
630 enabled_any $dep_any || disable $cfg
631 disabled_any $dep_sel && disable $cfg
633 if enabled $cfg; then
635 enable_deep_weak $dep_sgs
638 disable ${cfg}_checking
647 for cfg in $allopts; do
648 enabled $cfg || continue
649 eval dep_extralibs="\$${cfg}_extralibs"
650 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
658 map 'eval echo "$v \${$v:-no}"' "$@" |
659 awk "BEGIN { split(\"$files\", files) }
661 c = \"$pfx\" toupper(\$1);
667 if (file ~ /\\.h\$/) {
668 printf(\"#define %s %d\\n\", c, v) >>file;
669 } else if (file ~ /\\.asm\$/) {
670 printf(\"%%define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.mak\$/) {
672 n = -v ? \"\" : \"!\";
673 printf(\"%s%s=yes\\n\", n, c) >>file;
683 enabled $v && printf "%s\n" ${v%$suf}
690 eval "$var=\"\$$var $*\""
696 eval "$var=\"$* \$$var\""
702 for tok in $(eval echo \$$var); do
703 uniq_list="$(filter_out $tok $uniq_list) $tok"
705 eval "$var=\"${uniq_list}\""
713 append CFLAGS $($cflags_filter "$@")
717 append ASFLAGS $($asflags_filter "$@")
721 append OBJCFLAGS $($objcflags_filter "$@")
725 append LDFLAGS $($ldflags_filter "$@")
729 append LDEXEFLAGS $($ldflags_filter "$@")
733 append STRIPFLAGS "$@"
737 prepend extralibs $($ldflags_filter "$@")
741 append host_cppflags "$@"
745 append host_cflags $($host_cflags_filter "$@")
749 append host_ldflags $($host_ldflags_filter "$@")
753 append compat_objs $1
755 map 'add_cppflags -D$v' "$@"
760 "$@" >> $logfile 2>&1
764 eval printf '%s\\n' $CC_O
768 eval printf '%s\\n' $CC_E
775 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
782 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
789 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
793 eval printf '%s\\n' $AS_O
800 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
804 log check_inline_asm "$@"
809 check_cc "$@" <<EOF && enable $name
810 void foo(void){ __asm__ volatile($code); }
816 check_inline_asm ${1}_inline "\"$2\""
817 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
825 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
829 eval printf '%s\\n' $LD_O
834 flags=$(filter_out '-l*' "$@")
835 libs=$(filter '-l*' "$@")
836 check_cc $($cflags_filter $flags) || return
837 flags=$($ldflags_filter $flags)
838 libs=$($ldflags_filter $libs)
839 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
844 test "${hdr%.h}" = "${hdr}" &&
845 echo "#include $hdr" ||
846 echo "#include <$hdr>"
856 for hdr in $headers; do
859 echo "int main(void) { $code; return 0; }"
860 } | check_$check "$@"
864 log check_cppflags "$@"
865 check_cc "$@" <<EOF && append CPPFLAGS "$@"
872 set -- $($cflags_filter "$@")
879 log check_cflags "$@"
880 test_cflags "$@" && add_cflags "$@"
885 set -- $($cflags_filter "$@")
886 check_objcc "$@" <<EOF
892 log check_cflags "$@"
893 test_objcflags "$@" && add_objcflags "$@"
897 log test_ldflags "$@"
899 int main(void){ return 0; }
904 log check_ldflags "$@"
905 test_ldflags "$@" && add_ldflags "$@"
909 log test_stripflags "$@"
910 # call check_cc to get a fresh TMPO
912 int main(void) { return 0; }
914 check_cmd $strip $STRIPFLAGS "$@" $TMPO
918 log check_stripflags "$@"
919 test_stripflags "$@" && add_stripflags "$@"
923 log check_header "$@"
927 check_cpp "$@" <<EOF && enable_safe $header
938 check_ld "$@" <<EOF && enable $func
940 int main(void){ $func(); }
945 log check_mathfunc "$@"
949 test $narg = 2 && args="f, g" || args="f"
951 check_ld "$@" <<EOF && enable $func
953 float foo(float f, float g) { return $func($args); }
954 int main(void){ return 0; }
958 check_func_headers(){
959 log check_func_headers "$@"
964 for hdr in $headers; do
967 for func in $funcs; do
968 echo "long check_$func(void) { return (long) $func; }"
970 echo "int main(void) { return 0; }"
971 } | check_ld "$@" && enable $funcs && enable_safe $headers
974 check_cpp_condition(){
975 log check_cpp_condition "$@"
982 #error "unsatisfied condition: $condition"
992 check_header $header && check_func $func "$@" && add_extralibs "$@"
1000 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1004 log check_pkg_config "$@"
1009 check_cmd $pkg_config --exists --print-errors $pkg || return
1010 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1011 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1012 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1013 set_safe "${pkg}_cflags" $pkg_cflags &&
1014 set_safe "${pkg}_libs" $pkg_libs
1018 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1024 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1025 # are safe but may not be available everywhere. Thus we use
1026 # raise(SIGTERM) instead. The check is run in a subshell so we
1027 # can redirect the "Terminated" message from the shell. SIGBUS
1028 # is not defined by standard C so it is used conditionally.
1030 (check_exec "$@") >> $logfile 2>&1 <<EOF
1032 static void sighandler(int sig){
1038 int (*func_ptr)(void) = foo;
1040 signal(SIGILL, sighandler);
1041 signal(SIGFPE, sighandler);
1042 signal(SIGSEGV, sighandler);
1044 signal(SIGBUS, sighandler);
1056 disable_safe "$type"
1057 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1061 log check_struct "$@"
1066 disable_safe "${struct}_${member}"
1067 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1068 enable_safe "${struct}_${member}"
1072 log check_builtin "$@"
1078 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1081 check_compile_assert(){
1082 log check_compile_assert "$@"
1088 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1096 check_lib $header $func "$@" || die "ERROR: $name not found"
1104 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1107 require_pkg_config(){
1109 check_pkg_config "$@" || die "ERROR: $pkg not found"
1110 add_cflags $(get_safe "${pkg}_cflags")
1111 add_extralibs $(get_safe "${pkg}_libs")
1115 eval printf '%s\\n' $HOSTCC_E
1119 eval printf '%s\\n' $HOSTCC_O
1123 log check_host_cc "$@"
1126 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1130 log check_host_cpp "$@"
1133 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1136 check_host_cppflags(){
1137 log check_host_cppflags "$@"
1138 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1143 check_host_cflags(){
1144 log check_host_cflags "$@"
1145 set -- $($host_cflags_filter "$@")
1146 check_host_cc "$@" <<EOF && append host_cflags "$@"
1151 check_host_cpp_condition(){
1152 log check_host_cpp_condition "$@"
1156 check_host_cpp "$@" <<EOF
1159 #error "unsatisfied condition: $condition"
1167 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1171 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1172 mkdir -p "$(dirname $2)"
1176 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1177 # system-dependent things.
1179 AVCODEC_COMPONENTS="
1187 AVDEVICE_COMPONENTS="
1191 AVFILTER_COMPONENTS="
1194 AVFORMAT_COMPONENTS="
1200 AVRESAMPLE_COMPONENTS=""
1201 AVUTIL_COMPONENTS=""
1205 $AVDEVICE_COMPONENTS
1206 $AVFILTER_COMPONENTS
1207 $AVFORMAT_COMPONENTS
1208 $AVRESAMPLE_COMPONENTS
1214 filter_audio_example
1218 transcode_aac_example
1221 HWACCEL_LIBRARY_NONFREE_LIST="
1225 HWACCEL_LIBRARY_LIST="
1226 $HWACCEL_LIBRARY_NONFREE_LIST
1238 EXTERNAL_LIBRARY_GPL_LIST="
1246 EXTERNAL_LIBRARY_NONFREE_LIST="
1252 EXTERNAL_LIBRARY_VERSION3_LIST="
1259 EXTERNAL_LIBRARY_LIST="
1260 $EXTERNAL_LIBRARY_GPL_LIST
1261 $EXTERNAL_LIBRARY_NONFREE_LIST
1262 $EXTERNAL_LIBRARY_VERSION3_LIST
1303 safe_bitstream_reader
1349 $EXTERNAL_LIBRARY_LIST
1350 $HWACCEL_LIBRARY_LIST
1413 ARCH_EXT_LIST_X86_SIMD="
1441 $ARCH_EXT_LIST_X86_SIMD
1446 ARCH_EXT_LIST_MIPS="
1483 sync_val_compare_and_swap
1497 AVFoundation_AVFoundation_h
1502 cdio_paranoia_paranoia_h
1504 dev_bktr_ioctl_bt848_h
1505 dev_bktr_ioctl_meteor_h
1507 dev_video_bktr_ioctl_bt848_h
1508 dev_video_meteor_ioctl_meteor_h
1516 machine_ioctl_bt848_h
1517 machine_ioctl_meteor_h
1581 GetProcessAffinityMask
1582 GetProcessMemoryInfo
1585 GetSystemTimeAsFileTime
1590 jack_port_get_latency_range
1602 SetConsoleTextAttribute
1613 TOOLCHAIN_FEATURES="
1635 CONDITION_VARIABLE_Ptr
1638 struct_group_source_req
1639 struct_ip_mreq_source
1642 struct_rusage_ru_maxrss
1644 struct_sockaddr_sa_len
1645 struct_sockaddr_storage
1646 struct_v4l2_frmivalenum_discrete
1651 $(add_suffix _external $ARCH_EXT_LIST)
1652 $(add_suffix _inline $ARCH_EXT_LIST)
1671 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1681 # options emitted with CONFIG_ prefix but not available on the command line
1828 # code dependency declarations
1830 # architecture extensions
1835 armv8_deps="aarch64"
1836 neon_deps_any="aarch64 arm"
1837 intrinsics_neon_deps="neon"
1838 vfp_deps_any="aarch64 arm"
1841 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1849 x86_64_select="i686"
1850 x86_64_suggest="fast_cmov"
1853 amd3dnowext_deps="amd3dnow"
1869 mmx_external_deps="yasm"
1870 mmx_inline_deps="inline_asm"
1871 mmx_suggest="mmx_external mmx_inline"
1873 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1874 eval dep=\$${ext}_deps
1875 eval ${ext}_external_deps='"${dep}_external"'
1876 eval ${ext}_inline_deps='"${dep}_inline"'
1877 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1880 aligned_stack_if_any="aarch64 ppc x86"
1881 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1882 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1883 fast_unaligned_if_any="aarch64 ppc x86"
1884 simd_align_16_if_any="altivec neon sse"
1885 simd_align_32_if_any="avx"
1887 # system capabilities
1888 symver_if_any="symver_asm_label symver_gnu_asm"
1889 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1892 atomics_gcc_if="sync_val_compare_and_swap"
1893 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1894 atomics_win32_if="MemoryBarrier"
1895 atomics_native_if_any="$ATOMICS_LIST"
1896 w32threads_deps="atomics_native"
1897 threads_if_any="$THREADS_LIST"
1901 dirac_parse_select="golomb"
1902 error_resilience_select="me_cmp"
1903 faandct_deps="faan fdctdsp"
1904 faanidct_deps="faan idctdsp"
1905 h264dsp_select="startcode"
1906 intrax8_select="blockdsp idctdsp"
1909 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1910 mpeg_er_select="error_resilience"
1911 mpegaudio_select="mpegaudiodsp"
1912 mpegaudiodsp_select="dct"
1913 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1914 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1915 vc1dsp_select="h264chroma qpeldsp startcode"
1917 # decoders / encoders
1918 aac_decoder_select="imdct15 mdct sinewin"
1919 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1920 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1921 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1922 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1923 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1924 adpcm_g722_decoder_select="g722dsp"
1925 adpcm_g722_encoder_select="g722dsp"
1926 aic_decoder_select="golomb idctdsp"
1927 alac_encoder_select="lpc"
1928 als_decoder_select="bswapdsp"
1929 amrnb_decoder_select="lsp"
1930 amrwb_decoder_select="lsp"
1931 amv_decoder_select="sp5x_decoder"
1932 ape_decoder_select="bswapdsp"
1933 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1934 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1935 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1936 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1937 atrac1_decoder_select="mdct sinewin"
1938 atrac3_decoder_select="mdct"
1939 atrac3p_decoder_select="mdct sinewin"
1940 bink_decoder_select="blockdsp hpeldsp"
1941 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1942 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1943 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1944 cllc_decoder_select="bswapdsp"
1945 comfortnoise_encoder_select="lpc"
1946 cook_decoder_select="audiodsp mdct sinewin"
1947 cscd_decoder_select="lzo"
1948 cscd_decoder_suggest="zlib"
1949 dca_decoder_select="fmtconvert mdct"
1950 dds_decoder_select="texturedsp"
1951 dnxhd_decoder_select="blockdsp idctdsp"
1952 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1953 dvvideo_decoder_select="dvprofile idctdsp"
1954 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1955 dxa_decoder_deps="zlib"
1956 dxv_decoder_select="lzf texturedsp"
1957 eac3_decoder_select="ac3_decoder"
1958 eac3_encoder_select="ac3_encoder"
1959 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1960 eatgq_decoder_select="aandcttables idctdsp"
1961 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1962 exr_decoder_deps="zlib"
1963 ffv1_decoder_select="golomb rangecoder"
1964 ffv1_encoder_select="rangecoder"
1965 ffvhuff_decoder_select="huffyuv_decoder"
1966 ffvhuff_encoder_select="huffyuv_encoder"
1967 fic_decoder_select="golomb"
1968 flac_decoder_select="flacdsp golomb"
1969 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1970 flashsv_decoder_deps="zlib"
1971 flashsv_encoder_deps="zlib"
1972 flashsv2_decoder_deps="zlib"
1973 flv_decoder_select="h263_decoder"
1974 flv_encoder_select="h263_encoder"
1975 fourxm_decoder_select="blockdsp bswapdsp"
1976 fraps_decoder_select="bswapdsp huffman"
1977 g2m_decoder_deps="zlib"
1978 g2m_decoder_select="blockdsp idctdsp jpegtables"
1979 h261_decoder_select="mpeg_er mpegvideo"
1980 h261_encoder_select="aandcttables mpegvideoenc"
1981 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1982 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1983 h263i_decoder_select="h263_decoder"
1984 h263p_encoder_select="h263_encoder"
1985 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1986 h264_decoder_suggest="error_resilience"
1987 hap_decoder_select="snappy texturedsp"
1988 hap_encoder_deps="libsnappy"
1989 hap_encoder_select="texturedspenc"
1990 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1991 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1992 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1993 iac_decoder_select="imc_decoder"
1994 imc_decoder_select="bswapdsp fft mdct sinewin"
1995 indeo3_decoder_select="hpeldsp"
1996 indeo4_decoder_select="ividsp"
1997 indeo5_decoder_select="ividsp"
1998 interplay_video_decoder_select="hpeldsp"
1999 jpegls_decoder_select="golomb mjpeg_decoder"
2000 jpegls_encoder_select="golomb"
2001 jv_decoder_select="blockdsp"
2002 lagarith_decoder_select="huffyuvdsp"
2003 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2004 loco_decoder_select="golomb"
2005 magicyuv_decoder_select="huffyuvdsp"
2006 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2007 metasound_decoder_select="lsp mdct sinewin"
2008 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2009 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2010 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2011 mjpegb_decoder_select="mjpeg_decoder"
2012 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2013 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2014 mlp_decoder_select="mlp_parser"
2015 motionpixels_decoder_select="bswapdsp"
2016 mp1_decoder_select="mpegaudio"
2017 mp1float_decoder_select="mpegaudio"
2018 mp2_decoder_select="mpegaudio"
2019 mp2float_decoder_select="mpegaudio"
2020 mp3_decoder_select="mpegaudio"
2021 mp3adu_decoder_select="mpegaudio"
2022 mp3adufloat_decoder_select="mpegaudio"
2023 mp3float_decoder_select="mpegaudio"
2024 mp3on4_decoder_select="mpegaudio"
2025 mp3on4float_decoder_select="mpegaudio"
2026 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2027 mpc8_decoder_select="mpegaudiodsp"
2028 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2029 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2030 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2031 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2032 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2033 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2034 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2035 mpeg4_encoder_select="h263_encoder"
2036 msa1_decoder_select="mss34dsp"
2037 msmpeg4v1_decoder_select="h263_decoder"
2038 msmpeg4v2_decoder_select="h263_decoder"
2039 msmpeg4v2_encoder_select="h263_encoder"
2040 msmpeg4v3_decoder_select="h263_decoder"
2041 msmpeg4v3_encoder_select="h263_encoder"
2042 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2043 mts2_decoder_select="mss34dsp"
2044 mxpeg_decoder_select="mjpeg_decoder"
2045 nellymoser_decoder_select="mdct sinewin"
2046 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2047 nuv_decoder_select="idctdsp lzo"
2048 on2avc_decoder_select="mdct"
2049 opus_decoder_deps="avresample"
2050 opus_decoder_select="imdct15"
2051 png_decoder_deps="zlib"
2052 png_encoder_deps="zlib"
2053 png_encoder_select="huffyuvencdsp"
2054 prores_decoder_select="idctdsp"
2055 prores_encoder_select="fdctdsp"
2056 qcelp_decoder_select="lsp"
2057 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2058 ra_144_encoder_select="audio_frame_queue lpc"
2059 ralf_decoder_select="golomb"
2060 rscc_decoder_deps="zlib"
2061 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2062 rv10_encoder_select="h263_encoder"
2063 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2064 rv20_encoder_select="h263_encoder"
2065 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2066 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2067 screenpresso_decoder_deps="zlib"
2068 shorten_decoder_select="golomb"
2069 sipr_decoder_select="lsp"
2070 sp5x_decoder_select="mjpeg_decoder"
2071 svq1_decoder_select="hpeldsp"
2072 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2073 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2074 svq3_decoder_suggest="zlib"
2075 tak_decoder_select="audiodsp"
2076 tdsc_decoder_deps="zlib"
2077 tdsc_decoder_select="mjpeg_decoder"
2078 theora_decoder_select="vp3_decoder"
2079 thp_decoder_select="mjpeg_decoder"
2080 tiff_decoder_suggest="zlib"
2081 tiff_encoder_suggest="zlib"
2082 truehd_decoder_select="mlp_decoder"
2083 truemotion2_decoder_select="bswapdsp"
2084 truespeech_decoder_select="bswapdsp"
2085 tscc_decoder_deps="zlib"
2086 txd_decoder_select="texturedsp"
2087 twinvq_decoder_select="mdct lsp sinewin"
2088 utvideo_decoder_select="bswapdsp"
2089 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2090 vble_decoder_select="huffyuvdsp"
2091 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2092 vc1image_decoder_select="vc1_decoder"
2093 vorbis_decoder_select="mdct"
2094 vorbis_encoder_select="mdct"
2095 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2096 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2097 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2098 vp6a_decoder_select="vp6_decoder"
2099 vp6f_decoder_select="vp6_decoder"
2100 vp7_decoder_select="h264pred videodsp vp8dsp"
2101 vp8_decoder_select="h264pred videodsp vp8dsp"
2102 vp9_decoder_select="videodsp"
2103 webp_decoder_select="vp8_decoder"
2104 wmapro_decoder_select="mdct sinewin wma_freqs"
2105 wmav1_decoder_select="mdct sinewin wma_freqs"
2106 wmav1_encoder_select="mdct sinewin wma_freqs"
2107 wmav2_decoder_select="mdct sinewin wma_freqs"
2108 wmav2_encoder_select="mdct sinewin wma_freqs"
2109 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2110 wmv1_decoder_select="h263_decoder"
2111 wmv1_encoder_select="h263_encoder"
2112 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2113 wmv2_encoder_select="h263_encoder wmv2dsp"
2114 wmv3_decoder_select="vc1_decoder"
2115 wmv3image_decoder_select="wmv3_decoder"
2116 zerocodec_decoder_deps="zlib"
2117 zlib_decoder_deps="zlib"
2118 zlib_encoder_deps="zlib"
2119 zmbv_decoder_deps="zlib"
2120 zmbv_encoder_deps="zlib"
2122 # hardware accelerators
2123 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2124 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2125 vaapi_deps="va_va_h"
2126 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2127 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2128 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2130 h263_vaapi_hwaccel_deps="vaapi"
2131 h263_vaapi_hwaccel_select="h263_decoder"
2132 h264_d3d11va_hwaccel_deps="d3d11va"
2133 h264_d3d11va_hwaccel_select="h264_decoder"
2134 h264_dxva2_hwaccel_deps="dxva2"
2135 h264_dxva2_hwaccel_select="h264_decoder"
2136 h264_mmal_decoder_deps="mmal"
2137 h264_mmal_decoder_select="mmal"
2138 h264_mmal_hwaccel_deps="mmal"
2139 h264_omx_encoder_deps="omx"
2140 h264_qsv_hwaccel_deps="libmfx"
2141 h264_vaapi_hwaccel_deps="vaapi"
2142 h264_vaapi_hwaccel_select="h264_decoder"
2143 h264_vda_hwaccel_deps="vda"
2144 h264_vda_hwaccel_select="h264_decoder"
2145 h264_vda_old_hwaccel_deps="vda"
2146 h264_vda_old_hwaccel_select="h264_decoder"
2147 h264_vdpau_hwaccel_deps="vdpau"
2148 h264_vdpau_hwaccel_select="h264_decoder"
2149 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2150 hevc_d3d11va_hwaccel_select="hevc_decoder"
2151 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2152 hevc_dxva2_hwaccel_select="hevc_decoder"
2153 hevc_qsv_hwaccel_deps="libmfx"
2154 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2155 hevc_vdpau_hwaccel_select="hevc_decoder"
2156 mpeg1_vdpau_hwaccel_deps="vdpau"
2157 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2158 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2159 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2160 mpeg2_dxva2_hwaccel_deps="dxva2"
2161 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2162 mpeg2_mmal_decoder_deps="mmal"
2163 mpeg2_mmal_decoder_select="mmal"
2164 mpeg2_mmal_hwaccel_deps="mmal"
2165 mpeg2_qsv_hwaccel_deps="libmfx"
2166 mpeg2_vaapi_hwaccel_deps="vaapi"
2167 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2168 mpeg2_vdpau_hwaccel_deps="vdpau"
2169 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2170 mpeg4_omx_encoder_deps="omx"
2171 mpeg4_vaapi_hwaccel_deps="vaapi"
2172 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2173 mpeg4_vdpau_hwaccel_deps="vdpau"
2174 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2175 vc1_d3d11va_hwaccel_deps="d3d11va"
2176 vc1_d3d11va_hwaccel_select="vc1_decoder"
2177 vc1_dxva2_hwaccel_deps="dxva2"
2178 vc1_dxva2_hwaccel_select="vc1_decoder"
2179 vc1_mmal_decoder_deps="mmal"
2180 vc1_mmal_decoder_select="mmal"
2181 vc1_mmal_hwaccel_deps="mmal"
2182 vc1_vaapi_hwaccel_deps="vaapi"
2183 vc1_vaapi_hwaccel_select="vc1_decoder"
2184 vc1_vdpau_hwaccel_deps="vdpau"
2185 vc1_vdpau_hwaccel_select="vc1_decoder"
2186 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2187 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2188 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2189 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2191 # hardware-accelerated codecs
2192 nvenc_deps_any="dlopen LoadLibrary"
2193 nvenc_extralibs='$ldl'
2194 omx_deps="dlopen pthreads"
2195 omx_extralibs='$ldl'
2198 vaapi_encode_deps="vaapi"
2200 hwupload_cuda_filter_deps="cuda"
2201 scale_npp_filter_deps="cuda libnpp"
2203 h264_nvenc_encoder_deps="nvenc"
2204 h264_qsv_decoder_deps="libmfx"
2205 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2206 h264_qsv_encoder_deps="libmfx"
2207 h264_qsv_encoder_select="qsvenc"
2208 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2209 h264_vaapi_encoder_select="vaapi_encode golomb"
2211 hevc_nvenc_encoder_deps="nvenc"
2212 hevc_qsv_decoder_deps="libmfx"
2213 hevc_qsv_encoder_deps="libmfx"
2214 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2215 hevc_qsv_encoder_select="qsvenc"
2216 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2217 hevc_vaapi_encoder_select="vaapi_encode golomb"
2218 mpeg2_qsv_decoder_deps="libmfx"
2219 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2220 mpeg2_qsv_encoder_deps="libmfx"
2221 mpeg2_qsv_encoder_select="qsvenc"
2223 nvenc_h264_encoder_deps="nvenc"
2224 nvenc_hevc_encoder_deps="nvenc"
2227 h264_parser_select="golomb h264dsp h264parse"
2228 hevc_parser_select="golomb"
2229 mpegvideo_parser_select="mpegvideo"
2230 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2231 vc1_parser_select="vc1dsp"
2234 mjpeg2jpeg_bsf_select="jpegtables"
2236 # external libraries
2237 libdcadec_decoder_deps="libdcadec"
2238 libfaac_encoder_deps="libfaac"
2239 libfaac_encoder_select="audio_frame_queue"
2240 libfdk_aac_decoder_deps="libfdk_aac"
2241 libfdk_aac_encoder_deps="libfdk_aac"
2242 libfdk_aac_encoder_select="audio_frame_queue"
2243 libgsm_decoder_deps="libgsm"
2244 libgsm_encoder_deps="libgsm"
2245 libgsm_ms_decoder_deps="libgsm"
2246 libgsm_ms_encoder_deps="libgsm"
2247 libilbc_decoder_deps="libilbc"
2248 libilbc_encoder_deps="libilbc"
2249 libkvazaar_encoder_deps="libkvazaar"
2250 libmp3lame_encoder_deps="libmp3lame"
2251 libmp3lame_encoder_select="audio_frame_queue"
2252 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2253 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2254 libopencore_amrnb_encoder_select="audio_frame_queue"
2255 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2256 libopenh264_decoder_deps="libopenh264"
2257 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2258 libopenh264_encoder_deps="libopenh264"
2259 libopenjpeg_decoder_deps="libopenjpeg"
2260 libopenjpeg_encoder_deps="libopenjpeg"
2261 libopus_decoder_deps="libopus"
2262 libopus_encoder_deps="libopus"
2263 libopus_encoder_select="audio_frame_queue"
2264 libschroedinger_decoder_deps="libschroedinger"
2265 libschroedinger_encoder_deps="libschroedinger"
2266 libspeex_decoder_deps="libspeex"
2267 libspeex_encoder_deps="libspeex"
2268 libspeex_encoder_select="audio_frame_queue"
2269 libtheora_encoder_deps="libtheora"
2270 libtwolame_encoder_deps="libtwolame"
2271 libvo_aacenc_encoder_deps="libvo_aacenc"
2272 libvo_aacenc_encoder_select="audio_frame_queue"
2273 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2274 libvorbis_encoder_deps="libvorbis"
2275 libvorbis_encoder_select="audio_frame_queue"
2276 libvpx_vp8_decoder_deps="libvpx"
2277 libvpx_vp8_encoder_deps="libvpx"
2278 libvpx_vp9_decoder_deps="libvpx"
2279 libvpx_vp9_encoder_deps="libvpx"
2280 libwavpack_encoder_deps="libwavpack"
2281 libwebp_encoder_deps="libwebp"
2282 libx262_encoder_deps="libx262"
2283 libx264_encoder_deps="libx264"
2284 libx265_encoder_deps="libx265"
2285 libxavs_encoder_deps="libxavs"
2286 libxvid_encoder_deps="libxvid"
2289 ac3_demuxer_select="ac3_parser"
2290 asf_demuxer_select="riffdec"
2291 asf_muxer_select="riffenc"
2292 asf_stream_muxer_select="asf_muxer"
2293 avi_demuxer_select="iso_media riffdec"
2294 avi_muxer_select="riffenc"
2295 avisynth_demuxer_deps="avisynth"
2296 avisynth_demuxer_select="riffdec"
2297 caf_demuxer_select="iso_media riffdec"
2298 dash_muxer_select="mp4_muxer"
2299 dirac_demuxer_select="dirac_parser"
2300 dv_demuxer_select="dvprofile"
2301 dv_muxer_select="dvprofile"
2302 dxa_demuxer_select="riffdec"
2303 eac3_demuxer_select="ac3_parser"
2304 f4v_muxer_select="mov_muxer"
2305 flac_demuxer_select="flac_parser"
2306 hds_muxer_select="flv_muxer"
2307 hls_muxer_select="mpegts_muxer"
2308 ipod_muxer_select="mov_muxer"
2309 ismv_muxer_select="mov_muxer"
2310 matroska_audio_muxer_select="matroska_muxer"
2311 matroska_demuxer_select="iso_media riffdec"
2312 matroska_demuxer_suggest="bzlib lzo zlib"
2313 matroska_muxer_select="iso_media riffenc"
2314 mmf_muxer_select="riffenc"
2315 mov_demuxer_select="iso_media riffdec"
2316 mov_demuxer_suggest="zlib"
2317 mov_muxer_select="iso_media riffenc rtpenc_chain"
2318 mp3_demuxer_select="mpegaudio_parser"
2319 mp4_muxer_select="mov_muxer"
2320 mpegts_demuxer_select="iso_media"
2321 mpegts_muxer_select="adts_muxer latm_muxer"
2322 mpegtsraw_demuxer_select="mpegts_demuxer"
2323 mxf_d10_muxer_select="mxf_muxer"
2324 nut_muxer_select="riffenc"
2325 nuv_demuxer_select="riffdec"
2326 oga_muxer_select="ogg_muxer"
2327 ogg_demuxer_select="dirac_parse"
2328 opus_muxer_select="ogg_muxer"
2329 psp_muxer_select="mov_muxer"
2330 rtp_demuxer_select="sdp_demuxer"
2331 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2332 rtsp_demuxer_select="http_protocol rtpdec"
2333 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2334 sap_demuxer_select="sdp_demuxer"
2335 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2336 sdp_demuxer_select="rtpdec"
2337 smoothstreaming_muxer_select="ismv_muxer"
2338 spdif_muxer_select="aac_parser"
2339 spx_muxer_select="ogg_muxer"
2340 swf_demuxer_suggest="zlib"
2341 tak_demuxer_select="tak_parser"
2342 tg2_muxer_select="mov_muxer"
2343 tgp_muxer_select="mov_muxer"
2344 w64_demuxer_select="wav_demuxer"
2345 wav_demuxer_select="riffdec"
2346 wav_muxer_select="riffenc"
2347 webm_muxer_select="iso_media riffenc"
2348 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2349 wtv_demuxer_select="mpegts_demuxer riffdec"
2350 xmv_demuxer_select="riffdec"
2351 xwma_demuxer_select="riffdec"
2354 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2355 alsa_outdev_deps="alsa_asoundlib_h"
2356 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2357 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2358 dv1394_indev_deps="dv1394"
2359 dv1394_indev_select="dv_demuxer"
2360 fbdev_indev_deps="linux_fb_h"
2361 jack_indev_deps="jack_jack_h"
2362 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2363 libcdio_indev_deps="libcdio"
2364 libdc1394_indev_deps="libdc1394"
2365 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2366 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2367 pulse_indev_deps="libpulse"
2368 sndio_indev_deps="sndio_h"
2369 sndio_outdev_deps="sndio_h"
2370 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2371 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2372 vfwcap_indev_extralibs="-lavicap32"
2373 xcbgrab_indev_deps="libxcb"
2376 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2377 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2378 ffrtmpcrypt_protocol_select="tcp_protocol"
2379 ffrtmphttp_protocol_deps="!librtmp_protocol"
2380 ffrtmphttp_protocol_select="http_protocol"
2381 gopher_protocol_select="network"
2382 http_protocol_select="tcp_protocol"
2383 httpproxy_protocol_select="tcp_protocol"
2384 https_protocol_select="tls_protocol"
2385 icecast_protocol_select="http_protocol"
2386 librtmp_protocol_deps="librtmp"
2387 librtmpe_protocol_deps="librtmp"
2388 librtmps_protocol_deps="librtmp"
2389 librtmpt_protocol_deps="librtmp"
2390 librtmpte_protocol_deps="librtmp"
2391 mmsh_protocol_select="http_protocol"
2392 mmst_protocol_select="network"
2393 rtmp_protocol_deps="!librtmp_protocol"
2394 rtmp_protocol_select="tcp_protocol"
2395 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2396 rtmps_protocol_deps="!librtmp_protocol"
2397 rtmps_protocol_select="tls_protocol"
2398 rtmpt_protocol_select="ffrtmphttp_protocol"
2399 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2400 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2401 rtp_protocol_select="udp_protocol"
2402 sctp_protocol_deps="struct_sctp_event_subscribe"
2403 sctp_protocol_select="network"
2404 srtp_protocol_select="rtp_protocol srtp"
2405 tcp_protocol_select="network"
2406 tls_gnutls_protocol_deps="gnutls"
2407 tls_gnutls_protocol_select="tcp_protocol"
2408 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2409 tls_openssl_protocol_select="tcp_protocol"
2410 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2411 udp_protocol_select="network"
2412 unix_protocol_deps="sys_un_h"
2413 unix_protocol_select="network"
2416 blackframe_filter_deps="gpl"
2417 boxblur_filter_deps="gpl"
2418 bs2b_filter_deps="libbs2b"
2419 cropdetect_filter_deps="gpl"
2420 deinterlace_qsv_filter_deps="libmfx"
2421 delogo_filter_deps="gpl"
2422 drawtext_filter_deps="libfreetype"
2423 frei0r_filter_deps="frei0r dlopen"
2424 frei0r_filter_extralibs='$ldl'
2425 frei0r_src_filter_deps="frei0r dlopen"
2426 frei0r_src_filter_extralibs='$ldl'
2427 hdcd_filter_deps="libhdcd"
2428 hqdn3d_filter_deps="gpl"
2429 interlace_filter_deps="gpl"
2430 ocv_filter_deps="libopencv"
2431 resample_filter_deps="avresample"
2432 scale_filter_deps="swscale"
2433 scale_qsv_filter_deps="libmfx"
2434 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2437 avcodec_example_deps="avcodec avutil"
2438 filter_audio_example_deps="avfilter avutil"
2439 metadata_example_deps="avformat avutil"
2440 output_example_deps="avcodec avformat avutil swscale"
2441 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2442 transcode_aac_example_deps="avcodec avformat avresample"
2444 # libraries, in linking order
2445 avcodec_deps="avutil"
2446 avdevice_deps="avformat avcodec avutil"
2447 avfilter_deps="avutil"
2448 avformat_deps="avcodec avutil"
2449 avresample_deps="avutil"
2450 swscale_deps="avutil"
2453 avconv_deps="avcodec avfilter avformat avresample swscale"
2454 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2455 fps_filter null_filter resample_filter scale_filter
2457 avplay_deps="avcodec avfilter avformat avresample sdl"
2458 avplay_libs='$sdl_libs'
2459 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2460 avprobe_deps="avcodec avformat"
2464 texi2html_deps="doc"
2466 # default parameters
2468 logfile="config.log"
2470 # installation paths
2471 prefix_default="/usr/local"
2472 bindir_default='${prefix}/bin'
2473 datadir_default='${prefix}/share/avconv'
2474 docdir_default='${prefix}/share/doc/libav'
2475 incdir_default='${prefix}/include'
2476 libdir_default='${prefix}/lib'
2477 mandir_default='${prefix}/share/man'
2478 shlibdir_default="$libdir_default"
2483 host_cc_default="gcc"
2488 pkg_config_default=pkg-config
2491 version_script='--version-script'
2495 arch_default=$(uname -m)
2500 target_os_default=$(tolower $(uname -s))
2501 host_os=$target_os_default
2503 # configurable options
2504 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2509 enable faan faandct faanidct
2510 enable optimizations
2511 enable safe_bitstream_reader
2513 enable swscale_alpha
2514 enable valgrind_backtrace
2516 # By default, enable only those hwaccels that have no external dependencies.
2517 enable d3d11va dxva2 vda vdpau
2520 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2523 FULLNAME='$(NAME)$(BUILDSUF)'
2524 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2527 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2528 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2529 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2530 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2531 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2532 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2533 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2556 host_cflags_filter=echo
2557 host_ldflags_filter=echo
2559 target_path='$(CURDIR)'
2561 # since the object filename is not given with the -MM flag, the compiler
2562 # is only able to print the basename, and we must add the path ourselves
2563 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2567 if test -f configure; then
2570 source_path=$(cd $(dirname "$0"); pwd)
2571 echo "$source_path" | grep -q '[[:blank:]]' &&
2572 die "Out of tree builds are impossible with whitespace in source path."
2573 test -e "$source_path/config.h" &&
2574 die "Out of tree builds are impossible with config.h in source dir."
2581 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2587 file=$source_path/$3
2588 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2591 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2592 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2593 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2594 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2595 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2596 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2597 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2598 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2599 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2601 find_things_extern(){
2604 file=$source_path/$3
2605 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2608 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2609 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2625 for n in $COMPONENT_LIST; do
2626 v=$(toupper ${n%s})_LIST
2628 eval ${n}_if_any="\$$v"
2631 enable $ARCH_EXT_LIST
2634 echo "Unknown option \"$1\"."
2635 echo "See $0 --help for available options."
2640 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2646 echo $* | sed s/$suffix//g | print_3_columns
2658 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2659 echo "prob ${prob:-0.5}"
2667 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2668 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2677 --extra-ldexeflags=*)
2678 add_ldexeflags $optval
2681 add_extralibs $optval
2684 disable $INDEV_LIST $OUTDEV_LIST
2687 debuglevel="$optval"
2690 disable $PROGRAM_LIST
2692 --disable-everything)
2693 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2696 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2697 disable $LIBRARY_LIST $PROGRAM_LIST doc
2699 --enable-random|--disable-random)
2700 action=${opt%%-random}
2701 do_random ${action#--} $COMPONENT_LIST
2703 --enable-random=*|--disable-random=*)
2704 action=${opt%%-random=*}
2705 do_random ${action#--} $optval
2707 --enable-*=*|--disable-*=*)
2708 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2709 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2710 eval list=\$$(toupper $thing)_LIST
2711 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2712 $action $(filter "$name" $list)
2714 --enable-avserver|--disable-avserver*)
2715 warn "avserver has been removed, the ${opt} option is only"\
2716 "provided for compatibility and will be removed in the future"
2718 --enable-?*|--disable-?*)
2719 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2720 if is_in $option $COMPONENT_LIST; then
2721 test $action = disable && action=unset
2722 eval $action \$$(toupper ${option%s})_LIST
2723 elif is_in $option $CMDLINE_SELECT; then
2730 NAME="${opt#--list-}"
2731 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2733 eval show_list $NAME \$$(toupper $NAME)_LIST
2735 --help|-h) show_help
2738 optname="${opt%%=*}"
2739 optname="${optname#--}"
2740 optname=$(echo "$optname" | sed 's/-/_/g')
2741 if is_in $optname $CMDLINE_SET; then
2742 eval $optname='$optval'
2743 elif is_in $optname $CMDLINE_APPEND; then
2744 append $optname "$optval"
2756 disabled logging && logfile=/dev/null
2758 # Disable all the library-specific components if the library itself
2759 # is disabled, see AVCODEC_LIST and following _LIST variables.
2761 disable_components(){
2762 disabled ${1} && disable $(
2763 eval components="\$$(toupper ${1})_COMPONENTS"
2764 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2768 map 'disable_components $v' $LIBRARY_LIST
2770 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2773 case "$toolchain" in
2775 cc_default="${toolchain%-asan}"
2776 add_cflags -fsanitize=address
2777 add_ldflags -fsanitize=address
2780 cc_default="${toolchain%-msan}"
2781 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2782 add_ldflags -fsanitize=memory
2785 cc_default="${toolchain%-tsan}"
2786 add_cflags -fsanitize=thread -pie
2787 add_ldflags -fsanitize=thread -pie
2788 case "$toolchain" in
2796 cc_default="${toolchain%-usan}"
2797 add_cflags -fsanitize=undefined
2798 add_ldflags -fsanitize=undefined
2799 case "$toolchain" in
2806 target_exec_default="valgrind"
2807 case "$toolchain" in
2809 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2812 target_exec_args="--track-origins=yes --leak-check=full"
2817 # Check whether the current MSVC version needs the C99 converter.
2818 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2819 # support enough of C99 to build libav. Default to the new
2820 # behaviour if the regexp was unable to match anything, since this
2821 # successfully parses the version number of existing supported
2822 # versions that require the converter (MSVC 2010 and 2012).
2823 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2824 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2827 cc_default="c99wrap cl"
2829 ld_default="$source_path/compat/windows/mslink"
2830 nm_default="dumpbin -symbols"
2837 target_os_default="win32"
2838 # Use a relative path for TMPDIR. This makes sure all the
2839 # ffconf temp files are written with a relative path, avoiding
2840 # issues with msys/win32 path conversion for MSVC parameters
2841 # such as -Fo<file> or -out:<file>.
2847 nm_default="dumpbin -symbols"
2849 target_os_default="win32"
2853 add_cflags -fprofile-arcs -ftest-coverage
2854 add_ldflags -fprofile-arcs -ftest-coverage
2857 add_cflags -fprofile-arcs -ftest-coverage
2858 add_ldflags --coverage
2861 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2862 add_cflags -fno-strict-overflow -fstack-protector-all
2863 add_ldflags -Wl,-z,relro -Wl,-z,now
2866 die "Unknown toolchain $toolchain"
2870 test -n "$cross_prefix" && enable cross_compile
2872 if enabled cross_compile; then
2873 test -n "$arch" && test -n "$target_os" ||
2874 die "Must specify target arch and OS when cross-compiling"
2877 ar_default="${cross_prefix}${ar_default}"
2878 cc_default="${cross_prefix}${cc_default}"
2879 occ_default="${cross_prefix}${occ_default}"
2880 nm_default="${cross_prefix}${nm_default}"
2881 pkg_config_default="${cross_prefix}${pkg_config_default}"
2882 ranlib="${cross_prefix}${ranlib}"
2883 strip="${cross_prefix}${strip}"
2885 sysinclude_default="${sysroot}/usr/include"
2887 set_default arch cc pkg_config sysinclude target_exec target_os
2888 enabled cross_compile || host_cc_default=$cc
2891 if ! $pkg_config --version >/dev/null 2>&1; then
2892 warn "$pkg_config not found, library detection may fail."
2898 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2902 EXESUF=$(exesuf $target_os)
2903 HOSTEXESUF=$(exesuf $host_os)
2905 # set temporary file name
2906 : ${TMPDIR:=$TEMPDIR}
2910 if ! check_cmd mktemp -u XXXXXX; then
2911 # simple replacement for missing mktemp
2912 # NOT SAFE FOR GENERAL USE
2914 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2919 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2920 (set -C; exec > $tmp) 2>/dev/null ||
2921 die "Unable to create temporary file in $TMPDIR."
2922 append TMPFILES $tmp
2926 trap 'rm -f -- $TMPFILES' EXIT
2930 tmpfile TMPE $EXESUF
2941 # make sure we can execute files in $TMPDIR
2942 cat > $TMPSH 2>> $logfile <<EOF
2945 chmod +x $TMPSH >> $logfile 2>&1
2946 if ! $TMPSH >> $logfile 2>&1; then
2948 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2949 variable to another directory and make sure that it is not mounted noexec.
2951 die "Sanity test failed."
2957 # Filter out MSVC cl.exe options from cflags that shouldn't
2958 # be passed to gas-preprocessor
2968 -std=c99) echo -c99 ;;
2969 -mcpu=*) echo -arch ${flag#*=} ;;
2970 -mieee) echo -ieee ;;
2971 -O*|-fast) echo $flag ;;
2972 -fno-math-errno) echo -assume nomath_errno ;;
2974 -Wall) echo -msg_enable level2 ;;
2975 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2976 -Wl,*) echo $flag ;;
2986 -Wno-switch) echo -Wno-switch-enum ;;
2987 -Wno-format-zero-length) ;;
2988 -Wdisabled-optimization) ;;
2989 -Wno-pointer-sign) echo -Wno-other ;;
2995 msvc_common_flags(){
2998 # In addition to specifying certain flags under the compiler
2999 # specific filters, they must be specified here as well or else the
3000 # generic catch all at the bottom will print the original flag.
3004 -fomit-frame-pointer) ;;
3008 -fno-signed-zeros) ;;
3012 -lz) echo zlib.lib ;;
3013 -lavifil32) echo vfw32.lib ;;
3014 -lavicap32) echo vfw32.lib user32.lib ;;
3015 -lx264) echo libx264.lib ;;
3016 -l*) echo ${flag#-l}.lib ;;
3017 -L*) echo -libpath:${flag#-L} ;;
3024 msvc_common_flags "$@"
3027 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3028 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3029 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3030 -wd4273 -wd4554 -wd4701 ;;
3036 msvc_common_flags "$@"
3039 # Despite what Intel's documentation says -Wall, which is supported
3040 # on Windows, does enable remarks so disable them here.
3041 -Wall) echo $flag -Qdiag-disable:remark ;;
3042 -std=c99) echo -Qstd=c99 ;;
3050 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3051 -fomit-frame-pointer) echo -Mnoframe ;;
3062 case "${flag#*=}" in
3063 native) echo -xtarget=native ;;
3064 v9|niagara) echo -xarch=sparc ;;
3065 ultrasparc) echo -xarch=sparcvis ;;
3066 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3067 i586|pentium) echo -xchip=pentium ;;
3068 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3069 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3070 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3071 pentium4*) echo -xtarget=pentium4 ;;
3072 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3073 *-sse3) echo -xarch=sse3 ;;
3074 core2) echo -xarch=ssse3 -xchip=core2 ;;
3075 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3076 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3077 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3078 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3079 k8|opteron|athlon64|athlon-fx)
3080 echo -xarch=sse2a ;;
3081 athlon*) echo -xarch=pentium_proa ;;
3084 -std=c99) echo -xc99 ;;
3085 -fomit-frame-pointer) echo -xregs=frameptr ;;
3086 -fPIC) echo -KPIC -xcode=pic32 ;;
3087 -W*,*) echo $flag ;;
3088 -f*-*|-W*|-mimpure-text) ;;
3099 case "${flag#*=}" in
3100 armv7-a|cortex-a*) echo -mv=7a8 ;;
3101 armv7-r|cortex-r*) echo -mv=7r4 ;;
3102 armv7-m|cortex-m*) echo -mv=7m3 ;;
3103 armv6*|arm11*) echo -mv=6 ;;
3104 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3106 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3109 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3110 -mfpu=vfp) echo --float_support=vfpv2 ;;
3111 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3112 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3113 -msoft-float) echo --float_support=vfplib ;;
3114 -O[0-3]|-mf=*) echo $flag ;;
3116 -pds=*) echo $flag ;;
3117 -D*|-I*) echo $flag ;;
3118 --gcc|--abi=*) echo $flag ;;
3128 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3129 unset _ld_o _ldflags _ld_lib _ld_path
3130 unset _depflags _DEPCMD _DEPFLAGS
3133 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3135 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3136 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3137 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3140 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3142 gcc_version=$($_cc --version | head -n1)
3143 gcc_basever=$($_cc -dumpversion)
3144 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3145 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3146 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3147 if ! $_cc -dumpversion | grep -q '^2\.'; then
3148 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3152 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3154 _ident=$($_cc --version | head -n1)
3159 elif $_cc -v 2>&1 | grep -q xlc; then
3161 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3163 _cflags_size='-O5 -qcompact'
3164 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3166 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3168 _cflags_speed='-fast'
3170 _flags_filter=ccc_flags
3171 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3172 test -d "$sysroot" || die "No valid sysroot specified."
3174 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3175 armcc_conf="$PWD/armcc.conf"
3176 $_cc --arm_linux_configure \
3177 --arm_linux_config_file="$armcc_conf" \
3178 --configure_sysroot="$sysroot" \
3179 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3180 die "Error creating armcc configuration file."
3181 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3182 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3183 as_default="${cross_prefix}gcc"
3187 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3189 _ident=$($_cc -version | head -n1 | tr -s ' ')
3190 _flags='--gcc --abi=eabi -me'
3193 _depflags='-ppa -ppd=$(@:.o=.d)'
3194 _cflags_speed='-O3 -mf=5'
3195 _cflags_size='-O3 -mf=2'
3196 _flags_filter=tms470_flags
3197 elif $_cc -v 2>&1 | grep -q clang; then
3199 _ident=$($_cc --version 2>/dev/null | head -n1)
3200 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3203 elif $_cc -V 2>&1 | grep -q Sun; then
3205 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3206 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3207 _DEPFLAGS='-xM1 -xc99'
3210 _cflags_size='-O5 -xspace'
3211 _flags_filter=suncc_flags
3212 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3214 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3215 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3218 _flags_filter='filter_out -Wdisabled-optimization'
3219 elif $_cc -v 2>&1 | grep -q Open64; then
3221 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3222 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3225 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3226 elif $_cc -V 2>&1 | grep -q Portland; then
3228 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3229 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3230 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3231 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3233 _flags_filter=pgi_flags
3234 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3236 _ident=$($_cc | head -n1)
3237 # 4509: "This form of conditional instruction is deprecated"
3238 _flags="-nologo -ignore 4509"
3239 _flags_filter=armasm_flags
3240 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3242 _ident=$($_cc 2>&1 | head -n1)
3243 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3244 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3247 if $_cc -nologo- 2>&1 | grep -q Linker; then
3254 _flags_filter=msvc_flags
3256 _ld_path='-libpath:'
3258 elif $_cc 2>&1 | grep -q Intel; then
3260 _ident=$($_cc 2>&1 | head -n1)
3261 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3262 # Not only is O3 broken on 13.x+ but it is slower on all previous
3263 # versions (tested) as well.
3265 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3266 if $_cc 2>&1 | grep -q Linker; then
3273 _flags_filter=icl_flags
3275 _ld_path='-libpath:'
3276 # -Qdiag-error to make icl error when seeing certain unknown arguments
3277 _flags='-nologo -Qdiag-error:4044,10157'
3278 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3279 # with MSVC which enables it by default.
3280 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3281 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3282 # lld can emulate multiple different linkers; in ms link.exe mode,
3283 # the -? parameter gives the help output which contains an identifyable
3284 # string, while it gives an error in other modes.
3286 # The link.exe mode doesn't have a switch for getting the version,
3287 # but we can force it back to gnu mode and get the version from there.
3288 _ident=$($_cc -flavor gnu --version)
3290 _flags_filter=msvc_flags
3292 _ld_path='-libpath:'
3293 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3295 _ident=$($_cc --version | head -n1)
3299 _flags_filter=cparser_flags
3302 eval ${pfx}_type=\$_type
3303 eval ${pfx}_ident=\$_ident
3307 eval ${1}_C=\${_cc_c-\${${1}_C}}
3308 eval ${1}_E=\${_cc_e-\${${1}_E}}
3309 eval ${1}_O=\${_cc_o-\${${1}_O}}
3311 if [ -n "$_depflags" ]; then
3312 eval ${1}_DEPFLAGS=\$_depflags
3314 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3315 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3316 eval DEP${1}FLAGS=\$_flags
3321 cflags_filter=$_flags_filter
3322 cflags_speed=$_cflags_speed
3323 cflags_size=$_cflags_size
3324 cflags_noopt=$_cflags_noopt
3325 add_cflags $_flags $_cflags
3326 cc_ldflags=$_ldflags
3329 probe_cc hostcc "$host_cc"
3330 host_cflags_filter=$_flags_filter
3331 add_host_cflags $_flags $_cflags
3334 test -n "$cc_type" && enable $cc_type ||
3335 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3337 : ${as_default:=$cc}
3338 : ${objcc_default:=$cc}
3339 : ${dep_cc_default:=$cc}
3340 : ${ld_default:=$cc}
3341 : ${host_ld_default:=$host_cc}
3342 set_default ar as objcc dep_cc ld host_ld
3345 asflags_filter=$_flags_filter
3346 add_asflags $_flags $_cflags
3349 probe_cc objcc "$objcc"
3350 objcflags_filter=$_flags_filter
3351 add_objcflags $_flags $_cflags
3355 ldflags_filter=$_flags_filter
3356 add_ldflags $_flags $_ldflags
3357 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3359 LD_LIB=${_ld_lib-$LD_LIB}
3360 LD_PATH=${_ld_path-$LD_PATH}
3362 probe_cc hostld "$host_ld"
3363 host_ldflags_filter=$_flags_filter
3364 add_host_ldflags $_flags $_ldflags
3365 HOSTLD_O=${_ld_o-$HOSTLD_O}
3367 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3368 probe_cc depcc "$dep_cc"
3369 CCDEP=${_DEPCMD:-$DEPCMD}
3370 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3374 if $ar 2>&1 | grep -q Microsoft; then
3377 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3380 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3381 arflags='-Xany -r -c'
3388 add_cflags $extra_cflags
3389 add_objcflags $extra_objcflags
3390 add_asflags $extra_cflags
3392 if test -n "$sysroot"; then
3395 add_cppflags --sysroot="$sysroot"
3396 add_ldflags --sysroot="$sysroot"
3399 add_cppflags -I"$sysinclude"
3400 add_ldflags --sysroot="$sysroot"
3405 if test "$cpu" = host; then
3406 enabled cross_compile &&
3407 die "--cpu=host makes no sense when cross-compiling."
3412 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3414 s/.*$1=\\([^ ]*\\).*/\\1/
3419 cpu=$(check_native -march || check_native -mcpu)
3423 test "${cpu:-host}" = host &&
3424 die "--cpu=host not supported with compiler $cc"
3427 # Deal with common $arch aliases
3451 "Power Macintosh"|ppc*|powerpc*)
3466 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3471 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3474 # Add processor-specific flags
3475 if enabled aarch64; then
3479 cpuflags="-march=$cpu"
3482 cpuflags="-mcpu=$cpu"
3486 elif enabled alpha; then
3488 cpuflags="-mcpu=$cpu"
3490 elif enabled arm; then
3493 check_cpp_condition stddef.h \
3494 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3499 if check_arm_arch 4; then echo armv4
3500 elif check_arm_arch 4T; then echo armv4t
3501 elif check_arm_arch 5; then echo armv5
3502 elif check_arm_arch 5E; then echo armv5e
3503 elif check_arm_arch 5T; then echo armv5t
3504 elif check_arm_arch 5TE; then echo armv5te
3505 elif check_arm_arch 5TEJ; then echo armv5te
3506 elif check_arm_arch 6; then echo armv6
3507 elif check_arm_arch 6J; then echo armv6j
3508 elif check_arm_arch 6K; then echo armv6k
3509 elif check_arm_arch 6Z; then echo armv6z
3510 elif check_arm_arch 6ZK; then echo armv6zk
3511 elif check_arm_arch 6T2; then echo armv6t2
3512 elif check_arm_arch 7; then echo armv7
3513 elif check_arm_arch 7A 7_A; then echo armv7-a
3514 elif check_arm_arch 7S; then echo armv7-a
3515 elif check_arm_arch 7R 7_R; then echo armv7-r
3516 elif check_arm_arch 7M 7_M; then echo armv7-m
3517 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3518 elif check_arm_arch 8A 8_A; then echo armv8-a
3522 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3526 cpuflags="-march=$cpu"
3527 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3530 cpuflags="-mcpu=$cpu"
3532 cortex-a*) subarch=armv7a ;;
3533 cortex-r*) subarch=armv7r ;;
3534 cortex-m*) enable thumb; subarch=armv7m ;;
3535 arm11*) subarch=armv6 ;;
3536 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3537 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3538 *) subarch=$(probe_arm_arch) ;;
3544 armv5t*) enable fast_clz ;;
3545 armv[6-8]*) enable fast_clz fast_unaligned ;;
3548 elif enabled avr32; then
3553 cpuflags="-mpart=$cpu"
3557 cpuflags="-march=$cpu"
3561 cpuflags="-mcpu=$cpu"
3565 cpuflags="-march=$cpu"
3569 elif enabled bfin; then
3571 cpuflags="-mcpu=$cpu"
3573 elif enabled mips; then
3575 cpuflags="-march=$cpu"
3577 elif enabled ppc; then
3581 case $(tolower $cpu) in
3582 601|ppc601|powerpc601)
3583 cpuflags="-mcpu=601"
3586 603*|ppc603*|powerpc603*)
3587 cpuflags="-mcpu=603"
3590 604*|ppc604*|powerpc604*)
3591 cpuflags="-mcpu=604"
3594 g3|75*|ppc75*|powerpc75*)
3595 cpuflags="-mcpu=750"
3598 g4|745*|ppc745*|powerpc745*)
3599 cpuflags="-mcpu=7450"
3602 74*|ppc74*|powerpc74*)
3603 cpuflags="-mcpu=7400"
3606 g5|970|ppc970|powerpc970)
3607 cpuflags="-mcpu=970"
3611 cpuflags="-mcpu=$cpu"
3615 cpuflags="-mcpu=$cpu"
3619 cpuflags="-mcpu=cell"
3624 cpuflags="-mcpu=e500mc"
3628 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3633 cpuflags="-mcpu=8540 -mhard-float"
3639 elif enabled sparc; then
3642 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3643 cpuflags="-mcpu=$cpu"
3645 ultrasparc*|niagara[234])
3646 cpuflags="-mcpu=$cpu"
3650 elif enabled x86; then
3654 cpuflags="-march=$cpu"
3658 # targets that do NOT support nopl and conditional mov (cmov)
3659 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3660 cpuflags="-march=$cpu"
3663 # targets that do support nopl and conditional mov (cmov)
3664 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3665 cpuflags="-march=$cpu"
3669 # targets that do support conditional mov but on which it's slow
3670 pentium4|pentium4m|prescott|nocona)
3671 cpuflags="-march=$cpu"
3679 if [ "$cpu" != generic ]; then
3680 add_cflags $cpuflags
3681 add_asflags $cpuflags
3682 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3685 # compiler sanity check
3687 int main(void){ return 0; }
3689 if test "$?" != 0; then
3690 echo "$cc is unable to create an executable file."
3691 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3692 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3693 echo "Only do this if you know what cross compiling means."
3695 die "C compiler test failed."
3698 add_cppflags -D_ISOC99_SOURCE
3699 check_cflags -std=c99
3700 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3703 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3707 add_host_cppflags -D_ISOC99_SOURCE
3708 check_host_cflags -std=c99
3709 check_host_cflags -Wall
3710 check_host_cflags -O3
3716 check_code cc "" "int test[2*($expr) - 1]" &&
3717 subarch=$arch64 || subarch=$arch32
3725 check_64bit mips mips64 '_MIPS_SIM > 1'
3729 check_64bit parisc parisc64 'sizeof(void *) > 4'
3733 check_64bit ppc ppc64 'sizeof(void *) > 4'
3737 check_64bit s390 s390x 'sizeof(void *) > 4'
3741 check_64bit sparc sparc64 'sizeof(void *) > 4'
3745 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3746 if test "$subarch" = "x86_64"; then
3753 enabled spic && enable_weak pic
3759 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3760 enabled shared && add_ldflags -Wl,-brtl
3764 enable section_data_rel_ro
3765 SLIB_INSTALL_NAME='$(SLIBNAME)'
3767 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3770 prefix_default="/boot/common"
3771 network_extralibs="-lnetwork"
3775 SHFLAGS='-shared -Wl,-h,$$(@F)'
3776 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3777 network_extralibs="-lsocket -lnsl"
3778 # When using suncc to build, the Solaris linker will mark
3779 # an executable with each instruction set encountered by
3780 # the Solaris assembler. As our libraries contain their own
3781 # guards for processor-specific code, instead suppress
3782 # generation of the HWCAPS ELF section on Solaris x86 only.
3783 enabled_all suncc x86 &&
3784 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3785 add_ldflags -Wl,-M,mapfile
3786 nm_default='nm -P -g'
3788 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3792 oss_indev_extralibs="-lossaudio"
3793 oss_outdev_extralibs="-lossaudio"
3798 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3800 oss_indev_extralibs="-lossaudio"
3801 oss_outdev_extralibs="-lossaudio"
3809 add_extralibs -lpoll -lgnugetopt
3812 enabled ppc && add_asflags -force_cpusubtype_ALL
3813 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3814 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3815 add_ldflags -Wl,-dynamic,-search_paths_first
3817 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3818 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3820 enabled x86_64 && objformat="macho64"
3821 enabled_any pic shared ||
3822 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3823 check_header dispatch/dispatch.h &&
3824 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3827 die "Native MSYS builds are discouraged, please use the MINGW environment."
3830 if test $target_os = "mingw32ce"; then
3836 if enabled x86_64; then
3837 LIBTARGET="i386:x86-64"
3838 elif enabled arm; then
3841 check_ldflags -Wl,--nxcompat
3842 check_ldflags -Wl,--dynamicbase
3843 shlibdir_default="$bindir_default"
3846 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3847 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3848 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3849 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3851 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3852 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3853 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3855 dlltool="${cross_prefix}dlltool"
3861 if enabled shared; then
3862 # Link to the import library instead of the normal static library
3865 # Cannot build both shared and static libs with MSVC or icl.
3868 shlibdir_default="$bindir_default"
3871 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3872 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3873 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3874 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3876 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3877 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3878 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3885 shlibdir_default="$bindir_default"
3888 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3889 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3890 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3892 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3893 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3897 *-dos|freedos|opendos)
3898 network_extralibs="-lsocket"
3901 add_cppflags -U__STRICT_ANSI__
3905 enable section_data_rel_ro
3909 ranlib="echo ignoring ranlib"
3914 add_cppflags -D_GNU_SOURCE
3915 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3916 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3920 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3921 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3922 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3923 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3924 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3925 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3926 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3927 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3928 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3929 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3933 add_cppflags -D_BSD_SOURCE
3938 add_cppflags -D_QNX_SOURCE
3939 network_extralibs="-lsocket"
3944 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3945 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3946 add_ldflags -Wl,--target1-abs,--no-undefined \
3947 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3948 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3949 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3950 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3951 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3954 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3959 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3960 -D_REENTRANT_SOURCE \
3961 -D_RESEARCH_SOURCE \
3964 add_compat strtod.o strtod=avpriv_strtod
3965 network_extralibs='-lbsd'
3966 exeobjs=compat/plan9/main.o
3972 die "Unknown OS '$target_os'."
3976 # determine libc flavour
3981 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3982 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3983 eval ${pfx}libc_type=uclibc
3984 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3985 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3986 eval ${pfx}libc_type=glibc
3987 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3988 # MinGW headers can be installed on Cygwin, so check for newlib first.
3989 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3990 eval ${pfx}libc_type=newlib
3991 add_${pfx}cppflags -U__STRICT_ANSI__
3992 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3993 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3994 eval ${pfx}libc_type=mingw64
3995 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3996 eval test \$${pfx_no_}cc_type = "gcc" &&
3997 add_${pfx}cppflags -D__printf__=__gnu_printf__
3998 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3999 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4000 eval ${pfx}libc_type=mingw32
4001 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4002 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4003 die "ERROR: MinGW32 runtime version must be >= 3.15."
4004 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4005 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4006 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4007 eval test \$${pfx_no_}cc_type = "gcc" &&
4008 add_${pfx}cppflags -D__printf__=__gnu_printf__
4009 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4010 eval ${pfx}libc_type=msvcrt
4011 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4012 if [ "$pfx" = host_ ]; then
4013 add_host_cppflags -Dsnprintf=_snprintf
4015 add_compat strtod.o strtod=avpriv_strtod
4016 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4017 _snprintf=avpriv_snprintf \
4018 vsnprintf=avpriv_vsnprintf
4021 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4022 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4023 # 0x601 by default unless something else is set by the user.
4024 # This can easily lead to us detecting functions only present
4025 # in such new versions and producing binaries requiring windows 7.0.
4026 # Therefore explicitly set the default to XP unless the user has
4027 # set something else on the command line.
4028 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4029 # family. For these cases, configure is free to use any functions
4030 # found in the SDK headers by default. (Alternatively, we could force
4031 # _WIN32_WINNT to 0x0602 in that case.)
4032 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4033 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4034 #ifdef WINAPI_FAMILY
4035 #include <winapifamily.h>
4036 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4041 if [ "$pfx" = "" ]; then
4042 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4044 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4045 eval ${pfx}libc_type=klibc
4046 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4047 eval ${pfx}libc_type=bionic
4048 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4049 eval ${pfx}libc_type=solaris
4050 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4052 eval ${pfx}libc_type=default
4053 add_${pfx}cppflags -D_DEFAULT_SOURCE
4058 test -n "$libc_type" && enable libc_$libc_type
4060 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4064 add_compat strtod.o strtod=avpriv_strtod
4068 # hacks for compiler/libc/os combinations
4070 if enabled_all tms470 libc_glibc; then
4071 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4072 add_cppflags -D__USER_LABEL_PREFIX__=
4073 add_cppflags -D__builtin_memset=memset
4074 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4075 add_cflags -pds=48 # incompatible redefinition of macro
4078 if enabled_all ccc libc_glibc; then
4079 add_ldflags -Wl,-z,now # calls to libots crash without this
4082 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4083 add_cppflags '-I\$(SRC_PATH)/compat/float'
4086 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4089 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4091 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4093 set_default $PATHS_LIST
4096 # we need to build at least one lib type
4097 if ! enabled_any static shared; then
4099 At least one library type must be built.
4100 Specify --enable-static to build the static libraries or --enable-shared to
4101 build the shared libraries as well. To only build the shared libraries specify
4102 --disable-static in addition to --enable-shared.
4107 die_license_disabled() {
4108 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4111 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
4112 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
4113 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
4115 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4117 disabled optimizations || check_cflags -fomit-frame-pointer
4120 disabled pic && return
4123 case "$target_os" in
4133 enabled pic && enable_weak_pic
4135 check_cc <<EOF || die "Symbol mangling check failed."
4138 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4139 extern_prefix=${sym%%ff_extern*}
4141 check_cc <<EOF && enable_weak inline_asm
4142 void foo(void) { __asm__ volatile ("" ::); }
4146 for restrict_keyword in restrict __restrict__ __restrict; do
4147 check_cc <<EOF && _restrict=$restrict_keyword && break
4148 void foo(char * $restrict_keyword p);
4152 check_cc <<EOF && enable pragma_deprecated
4153 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4156 check_cc <<EOF && enable attribute_packed
4157 struct { int x; } __attribute__((packed)) x;
4160 check_cc <<EOF && enable attribute_may_alias
4161 union { int x; } __attribute__((may_alias)) x;
4164 check_cc <<EOF || die "endian test failed"
4165 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4167 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4170 log "check_gas using '$as' as AS"
4171 # :vararg is used on aarch64, arm and ppc altivec
4172 check_as <<EOF || return 1
4173 .macro m n, y:vararg=0
4178 # .altmacro is only used in arm asm
4179 ! enabled arm || check_as <<EOF || return 1
4186 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4188 enabled_any arm aarch64 && nogas=die
4189 enabled_all ppc altivec && nogas=warn
4193 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4194 gcc) gaspp_as_type=gas ;;
4195 *) gaspp_as_type=$as_type ;;
4198 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4200 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4201 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4203 if ! check_gas ; then
4206 $nogas "GNU assembler not found, install/update gas-preprocessor"
4209 check_as <<EOF && enable as_func
4215 check_inline_asm inline_asm_labels '"1:\n"'
4217 if enabled aarch64; then
4218 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4219 # internal assembler in clang 3.3 does not support this instruction
4220 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4221 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4223 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4225 elif enabled alpha; then
4229 elif enabled arm; then
4231 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4232 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4233 enabled thumb && check_cflags -mthumb || check_cflags -marm
4235 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4237 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4239 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4240 case "${cross_prefix:-$cc}" in
4241 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4242 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4243 __asm__ (".eabi_attribute 28, 1");
4244 int main(void) { return 0; }
4247 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4250 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4251 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4252 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4253 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4254 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4255 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4257 [ $target_os = linux ] || [ $target_os = android ] ||
4258 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4261 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4263 check_as <<EOF && enable as_dn_directive
4267 check_as <<EOF && enable as_fpu_directive
4271 # llvm's integrated assembler supports .object_arch from llvm 3.5
4272 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4276 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4278 elif enabled mips; then
4280 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4282 # make sure that only an instruction set is enabled
4283 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4285 if enabled mips64; then
4286 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4287 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4288 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4290 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4291 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4292 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4295 elif enabled parisc; then
4297 if enabled gcc; then
4298 case $($cc -dumpversion) in
4299 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4303 elif enabled ppc; then
4305 enable local_aligned_8 local_aligned_16 local_aligned_32
4307 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4308 check_inline_asm ibm_asm '"add 0, 0, 0"'
4309 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4310 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4312 # AltiVec flags: The FSF version of GCC differs from the Apple version
4313 if enabled altivec; then
4314 check_cflags -maltivec -mabi=altivec &&
4315 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4316 check_cflags -faltivec
4318 # check if our compiler supports Motorola AltiVec C API
4319 check_cc <<EOF || disable altivec
4322 vector signed int v1 = (vector signed int) { 0 };
4323 vector signed int v2 = (vector signed int) { 1 };
4324 v1 = vec_add(v1, v2);
4329 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4332 if enabled vsx; then
4333 check_cflags -mvsx &&
4334 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4337 if enabled power8; then
4338 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4341 elif enabled x86; then
4343 check_builtin rdtsc intrin.h "__rdtsc()"
4344 check_builtin mm_empty mmintrin.h "_mm_empty()"
4346 enable local_aligned_8 local_aligned_16 local_aligned_32
4348 # check whether EBP is available on x86
4349 # As 'i' is stored on the stack, this program will crash
4350 # if the base pointer is used to access it because the
4351 # base pointer is cleared in the inline assembly code.
4352 check_exec_crash <<EOF && enable ebp_available
4354 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4358 # check whether EBX is available on x86
4359 check_inline_asm ebx_available '""::"b"(0)' &&
4360 check_inline_asm ebx_available '"":::"%ebx"'
4362 # check whether xmm clobbers are supported
4363 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4365 # check whether binutils is new enough to compile SSSE3/MMXEXT
4366 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4367 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4369 if ! disabled_any asm mmx yasm; then
4370 if check_cmd $yasmexe --version; then
4371 enabled x86_64 && yasm_extra="-m amd64"
4372 yasm_debug="-g dwarf2"
4373 elif check_cmd nasm -v; then
4375 yasm_debug="-g -F dwarf"
4376 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4379 YASMFLAGS="-f $objformat $yasm_extra"
4380 enabled pic && append YASMFLAGS "-DPIC"
4381 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4382 case "$objformat" in
4383 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4386 check_yasm "movbe ecx, [5]" && enable yasm ||
4387 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4388 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4389 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4390 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4391 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4392 check_yasm "CPU amdnop" || disable cpunop
4396 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4403 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4405 check_ldflags -Wl,--as-needed
4407 if check_func dlopen; then
4409 elif check_func dlopen -ldl; then
4413 if ! disabled network; then
4414 check_func getaddrinfo $network_extralibs
4415 check_func inet_aton $network_extralibs
4417 check_type netdb.h "struct addrinfo"
4418 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4419 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4420 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4421 check_type poll.h "struct pollfd"
4422 check_type netinet/sctp.h "struct sctp_event_subscribe"
4423 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4424 check_type netinet/in.h "struct sockaddr_in6"
4425 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4426 check_type "sys/types.h sys/socket.h" socklen_t
4428 # Prefer arpa/inet.h over winsock2
4429 if check_header arpa/inet.h ; then
4430 check_func closesocket
4431 elif check_header winsock2.h ; then
4432 check_func_headers winsock2.h closesocket -lws2 &&
4433 network_extralibs="-lws2" ||
4434 { check_func_headers winsock2.h closesocket -lws2_32 &&
4435 network_extralibs="-lws2_32"; } || disable winsock2_h network
4436 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4438 check_type ws2tcpip.h socklen_t
4439 check_type ws2tcpip.h "struct addrinfo"
4440 check_type ws2tcpip.h "struct group_source_req"
4441 check_type ws2tcpip.h "struct ip_mreq_source"
4442 check_type ws2tcpip.h "struct ipv6_mreq"
4443 check_type winsock2.h "struct pollfd"
4444 check_struct winsock2.h "struct sockaddr" sa_len
4445 check_type ws2tcpip.h "struct sockaddr_in6"
4446 check_type ws2tcpip.h "struct sockaddr_storage"
4452 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4453 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4454 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4455 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4457 case "$custom_allocator" in
4459 # jemalloc by default does not use a prefix
4460 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4463 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4468 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4469 check_func ${malloc_prefix}memalign && enable memalign
4470 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4472 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4473 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4477 check_func gethrtime
4479 check_func getrusage
4480 check_func gettimeofday
4483 check_func localtime_r
4484 check_func mach_absolute_time
4488 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4489 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4490 check_func sched_getaffinity
4491 check_func setrlimit
4492 check_func strerror_r
4497 check_func_headers io.h setmode
4498 check_func_headers stdlib.h getenv
4500 check_func_headers windows.h CoTaskMemFree -lole32
4501 check_func_headers windows.h GetProcessAffinityMask
4502 check_func_headers windows.h GetProcessTimes
4503 check_func_headers windows.h GetSystemTimeAsFileTime
4504 check_func_headers windows.h LoadLibrary
4505 check_func_headers windows.h MapViewOfFile
4506 check_func_headers windows.h SetConsoleTextAttribute
4507 check_func_headers windows.h Sleep
4508 check_func_headers windows.h VirtualAlloc
4509 check_struct windows.h "CONDITION_VARIABLE" Ptr
4511 check_header direct.h
4512 check_header dlfcn.h
4513 check_header d3d11.h
4515 check_header dxva2api.h
4517 check_header mach/mach_time.h
4518 check_header malloc.h
4520 check_header sys/mman.h
4521 check_header sys/param.h
4522 check_header sys/resource.h
4523 check_header sys/select.h
4524 check_header sys/time.h
4525 check_header sys/un.h
4526 check_header unistd.h
4527 check_header valgrind/valgrind.h
4528 check_header vdpau/vdpau.h
4529 check_header vdpau/vdpau_x11.h
4530 check_header VideoDecodeAcceleration/VDADecoder.h
4531 check_header windows.h
4532 check_header X11/extensions/XvMClib.h
4534 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4535 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4536 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4538 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4540 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4541 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4542 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4544 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4545 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4546 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4547 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4549 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4551 if ! disabled w32threads && ! enabled pthreads; then
4552 check_func_headers "windows.h process.h" _beginthreadex &&
4553 enable w32threads || disable w32threads
4556 # check for some common methods of building with pthread support
4557 # do this before the optional library checks as some of them require pthreads
4558 if ! disabled pthreads && ! enabled w32threads; then
4560 if check_func pthread_join -pthread; then
4562 add_extralibs -pthread
4563 elif check_func pthread_join -pthreads; then
4564 add_cflags -pthreads
4565 add_extralibs -pthreads
4566 elif check_func pthread_join -lpthreadGC2; then
4567 add_extralibs -lpthreadGC2
4568 elif check_lib pthread.h pthread_join -lpthread; then
4570 elif ! check_func pthread_join; then
4576 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
4578 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4579 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4581 check_lib math.h sin -lm && LIBM="-lm"
4582 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4588 for func in $MATH_FUNCS; do
4589 eval check_mathfunc $func \${${func}_args:-1}
4592 # these are off by default, so fail if requested and not available
4593 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4594 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4595 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4596 enabled cuda && check_lib cuda.h cuInit -lcuda
4597 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4598 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4599 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4600 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4601 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4602 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4603 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4604 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4605 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4606 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4607 done || die "ERROR: libgsm not found"; }
4608 enabled libhdcd && require_pkg_config libhdcd "hdcd/hdcd_simple.h" hdcd_new
4609 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4610 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4611 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4612 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4613 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4614 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4615 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4616 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4617 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4618 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4619 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4620 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4621 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4622 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4623 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4624 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4625 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4626 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4627 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4628 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4629 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4630 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4631 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4632 enabled libvpx_vp8_decoder && {
4633 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4634 disable libvpx_vp8_decoder;
4636 enabled libvpx_vp8_encoder && {
4637 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4638 disable libvpx_vp8_encoder;
4640 enabled libvpx_vp9_decoder && {
4641 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4642 disable libvpx_vp9_decoder;
4644 enabled libvpx_vp9_encoder && {
4645 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4646 disable libvpx_vp9_encoder;
4648 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4649 die "libvpx enabled but no supported decoders found"
4652 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4653 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4654 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4655 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4656 die "ERROR: libx264 version must be >= 0.118."; } &&
4657 { check_cpp_condition x264.h "X264_MPEG2" &&
4659 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4660 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4661 die "ERROR: libx265 version must be >= 57."; }
4662 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4663 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4664 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4665 { ! enabled cross_compile && {
4666 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4667 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4668 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4669 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4670 die "ERROR: mmal not found"; }
4671 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
4672 enabled omx_rpi && enable omx
4673 enabled omx && { check_header OMX_Core.h ||
4674 { ! enabled cross_compile && enabled omx_rpi && {
4675 add_cflags -isystem/opt/vc/include/IL ; }
4676 check_header OMX_Core.h ; } ||
4677 die "ERROR: OpenMAX IL headers not found"; }
4678 enabled openssl && { check_pkg_config openssl openssl/ssl.h SSL_library_init && {
4679 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4680 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4681 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4682 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4683 die "ERROR: openssl not found"; }
4685 if enabled gnutls; then
4686 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4687 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4691 if enabled libdc1394; then
4692 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4693 enable libdc1394_2; } ||
4694 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4695 enable libdc1394_1; } ||
4696 die "ERROR: No version of libdc1394 found "
4699 if enabled nvenc; then
4700 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."
4701 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
4702 die "ERROR: NVENC API version 5 or older is not supported"
4705 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4706 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4707 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4711 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4712 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4714 check_header linux/fb.h
4715 check_header linux/videodev2.h
4716 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4718 check_header AVFoundation/AVFoundation.h &&
4719 check_objcflags -fobjc-arc &&
4720 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4721 disable AVFoundation_AVFoundation_h
4723 check_header sys/videoio.h
4725 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4726 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4727 # w32api 3.12 had it defined wrong
4728 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4730 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4731 { check_header dev/bktr/ioctl_meteor.h &&
4732 check_header dev/bktr/ioctl_bt848.h; } ||
4733 { check_header machine/ioctl_meteor.h &&
4734 check_header machine/ioctl_bt848.h; } ||
4735 { check_header dev/video/meteor/ioctl_meteor.h &&
4736 check_header dev/video/bktr/ioctl_bt848.h; } ||
4737 check_header dev/ic/bt8xx.h
4739 check_header sndio.h
4740 check_header sys/soundcard.h
4741 check_header soundcard.h
4743 enabled_any alsa_indev alsa_outdev &&
4744 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4746 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4747 check_func jack_port_get_latency_range -ljack
4749 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4751 if enabled libcdio; then
4752 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4753 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4754 die "ERROR: No usable libcdio/cdparanoia found"
4757 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4759 if enabled libxcb; then
4760 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4761 enabled libxcb && die "ERROR: libxcb not found";
4764 disabled libxcb_shm ||
4765 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4766 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4767 } && check_header sys/shm.h && enable libxcb_shm
4769 disabled libxcb_xfixes ||
4770 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4771 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4772 } && enable libxcb_xfixes
4774 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4775 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4779 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4782 if enabled vaapi ; then
4784 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4787 check_lib2 "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
4792 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4795 enabled vdpau && enabled xlib &&
4796 check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4799 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4801 # add some useful compiler flags if supported
4802 check_cflags -Wdeclaration-after-statement
4804 check_cflags -Wdisabled-optimization
4805 check_cflags -Wpointer-arith
4806 check_cflags -Wredundant-decls
4807 check_cflags -Wwrite-strings
4808 check_cflags -Wtype-limits
4809 check_cflags -Wundef
4810 check_cflags -Wmissing-prototypes
4811 check_cflags -Wstrict-prototypes
4812 enabled extra_warnings && check_cflags -Winline
4813 enabled extra_warnings && check_cflags -Wcast-qual
4815 check_disable_warning(){
4816 warning_flag=-W${1#-Wno-}
4817 test_cflags $warning_flag && add_cflags $1
4820 check_disable_warning -Wno-parentheses
4821 check_disable_warning -Wno-switch
4822 check_disable_warning -Wno-format-zero-length
4823 check_disable_warning -Wno-pointer-sign
4825 # add some linker flags
4826 check_ldflags -Wl,--warn-common
4827 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4828 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4829 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4831 # add some strip flags
4832 # -wN '..@*' is more selective than -x, but not available everywhere.
4833 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4835 enabled neon_clobber_test &&
4836 check_ldflags -Wl,--wrap,avcodec_open2 \
4837 -Wl,--wrap,avcodec_decode_audio4 \
4838 -Wl,--wrap,avcodec_decode_video2 \
4839 -Wl,--wrap,avcodec_decode_subtitle2 \
4840 -Wl,--wrap,avcodec_encode_audio2 \
4841 -Wl,--wrap,avcodec_encode_video2 \
4842 -Wl,--wrap,avcodec_encode_subtitle \
4843 -Wl,--wrap,avresample_convert ||
4844 disable neon_clobber_test
4846 enabled xmm_clobber_test &&
4847 check_ldflags -Wl,--wrap,avcodec_open2 \
4848 -Wl,--wrap,avcodec_decode_audio4 \
4849 -Wl,--wrap,avcodec_decode_video2 \
4850 -Wl,--wrap,avcodec_decode_subtitle2 \
4851 -Wl,--wrap,avcodec_encode_audio2 \
4852 -Wl,--wrap,avcodec_encode_video2 \
4853 -Wl,--wrap,avcodec_encode_subtitle \
4854 -Wl,--wrap,avresample_convert \
4855 -Wl,--wrap,sws_scale ||
4856 disable xmm_clobber_test
4858 check_ld <<EOF && enable proper_dce
4859 extern const int array[512];
4860 static inline int func(void) { return array[0]; }
4861 int main(void) { return 0; }
4864 if enabled proper_dce; then
4865 echo "X { local: *; };" > $TMPV
4866 if test_ldflags -Wl,${version_script},$TMPV; then
4867 append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
4868 check_cc <<EOF && enable symver_asm_label
4869 void ff_foo(void) __asm__ ("av_foo@VERSION");
4870 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4872 check_cc <<EOF && enable symver_gnu_asm
4873 __asm__(".symver ff_foo,av_foo@VERSION");
4874 void ff_foo(void) {}
4879 if [ -z "$optflags" ]; then
4880 if enabled small; then
4881 optflags=$cflags_size
4882 elif enabled optimizations; then
4883 optflags=$cflags_speed
4885 optflags=$cflags_noopt
4891 enabled lto && check_ldflags "$@"
4895 if enabled lto; then
4896 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4898 check_ldflags -flto $cpuflags
4901 check_optflags $optflags
4902 check_optflags -fno-math-errno
4903 check_optflags -fno-signed-zeros
4905 if enabled icc; then
4906 # Just warnings, no remarks
4908 # -wd: Disable following warnings
4909 # 144, 167, 556: -Wno-pointer-sign
4910 # 1292: attribute "foo" ignored
4911 # 1419: external declaration in primary source file
4912 # 10006: ignoring unknown option -fno-signed-zeros
4913 # 10148: ignoring unknown option -Wno-parentheses
4914 # 10156: ignoring option '-W'; no argument required
4915 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4916 # 11030: Warning unknown option --as-needed
4917 # 10156: ignoring option '-export'; no argument required
4918 check_ldflags -wd10156,11030
4919 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4920 enable ebp_available
4921 if enabled x86_32; then
4922 icc_version=$($cc -dumpversion)
4923 test ${icc_version%%.*} -ge 11 &&
4924 check_cflags -falign-stack=maintain-16-byte ||
4925 disable aligned_stack
4927 elif enabled ccc; then
4928 # disable some annoying warnings
4929 add_cflags -msg_disable bitnotint
4930 add_cflags -msg_disable mixfuncvoid
4931 add_cflags -msg_disable nonstandcast
4932 add_cflags -msg_disable unsupieee
4933 elif enabled gcc; then
4934 check_optflags -fno-tree-vectorize
4935 check_cflags -Werror=implicit-function-declaration
4936 check_cflags -Werror=missing-prototypes
4937 check_cflags -Werror=return-type
4938 check_cflags -Werror=declaration-after-statement
4939 check_cflags -Werror=vla
4940 check_cflags -Werror=format-security
4941 check_cflags -fdiagnostics-color=auto
4942 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4943 elif enabled llvm_gcc; then
4944 check_cflags -mllvm -stack-alignment=16
4945 elif enabled clang; then
4946 check_cflags -mllvm -stack-alignment=16
4947 check_cflags -Qunused-arguments
4948 check_cflags -Werror=implicit-function-declaration
4949 check_cflags -Werror=missing-prototypes
4950 check_cflags -Werror=return-type
4951 elif enabled cparser; then
4952 add_cflags -Wno-missing-variable-declarations
4953 add_cflags -Wno-empty-statement
4954 elif enabled armcc; then
4955 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4956 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4957 # 2523: use of inline assembly is deprecated
4958 add_cflags -W${armcc_opt},--diag_suppress=2523
4959 add_cflags -W${armcc_opt},--diag_suppress=1207
4960 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4961 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4962 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4963 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4964 elif enabled tms470; then
4965 add_cflags -pds=824 -pds=837
4967 elif enabled pathscale; then
4968 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4969 elif enabled_any msvc icl; then
4970 enabled x86_32 && disable aligned_stack
4971 enabled_all x86_32 debug && add_cflags -Oy-
4972 enabled debug && add_ldflags -debug
4973 enable pragma_deprecated
4974 if enabled icl; then
4975 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4976 # (correctly) on icl 13.x.
4977 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4978 add_cflags -Qansi-alias
4979 # icl will pass the inline asm tests but inline asm is currently
4980 # not supported (build will fail)
4983 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4984 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4985 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4986 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4987 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4988 # MSVC 2013 and newer can handle it fine.
4989 # If this declspec fails, force including stdlib.h before the restrict redefinition
4990 # happens in config.h.
4991 if [ $_restrict != restrict ]; then
4992 check_cc <<EOF || add_cflags -FIstdlib.h
4993 __declspec($_restrict) void* foo(int);
4998 for pfx in "" host_; do
4999 varname=${pfx%_}cc_type
5000 eval "type=\$$varname"
5001 if [ $type = "msvc" ]; then
5002 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5003 static inline int foo(int a) { return a; }
5010 add_asflags -Qunused-arguments
5016 check_ldflags -Qunused-arguments
5022 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5025 add_cppflags -Dmain=plan9_main
5029 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5031 check_deps $CONFIG_LIST \
5036 enabled_all dxva2 CoTaskMemFree &&
5037 prepend avconv_libs $($ldflags_filter "-lole32") &&
5040 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5042 for thread in $THREADS_LIST; do
5043 if enabled $thread; then
5044 test -n "$thread_type" &&
5045 die "ERROR: Only one thread type must be selected." ||
5046 thread_type="$thread"
5050 enabled zlib && add_cppflags -DZLIB_CONST
5052 # conditional library dependencies, in linking order
5053 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5054 enabled resample_filter && prepend avfilter_deps "avresample"
5055 enabled scale_filter && prepend avfilter_deps "swscale"
5057 enabled opus_decoder && prepend avcodec_deps "avresample"
5061 eval "deps=\$$lib_deps"
5062 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5066 map 'expand_deps $v' $LIBRARY_LIST
5068 echo "install prefix $prefix"
5069 echo "source path $source_path"
5070 echo "C compiler $cc"
5071 echo "C library $libc_type"
5072 if test "$host_cc" != "$cc"; then
5073 echo "host C compiler $host_cc"
5074 echo "host C library $host_libc_type"
5076 echo "ARCH $arch ($cpu)"
5077 if test "$build_suffix" != ""; then
5078 echo "build suffix $build_suffix"
5080 if test "$extra_version" != ""; then
5081 echo "version string suffix $extra_version"
5083 echo "big-endian ${bigendian-no}"
5084 echo "runtime cpu detection ${runtime_cpudetect-no}"
5085 if enabled x86; then
5086 echo "${yasmexe} ${yasm-no}"
5087 echo "MMX enabled ${mmx-no}"
5088 echo "MMXEXT enabled ${mmxext-no}"
5089 echo "3DNow! enabled ${amd3dnow-no}"
5090 echo "3DNow! extended enabled ${amd3dnowext-no}"
5091 echo "SSE enabled ${sse-no}"
5092 echo "SSSE3 enabled ${ssse3-no}"
5093 echo "AVX enabled ${avx-no}"
5094 echo "XOP enabled ${xop-no}"
5095 echo "FMA3 enabled ${fma3-no}"
5096 echo "FMA4 enabled ${fma4-no}"
5097 echo "i686 features enabled ${i686-no}"
5098 echo "CMOV is fast ${fast_cmov-no}"
5099 echo "EBX available ${ebx_available-no}"
5100 echo "EBP available ${ebp_available-no}"
5102 if enabled aarch64; then
5103 echo "NEON enabled ${neon-no}"
5104 echo "VFP enabled ${vfp-no}"
5106 if enabled arm; then
5107 echo "ARMv5TE enabled ${armv5te-no}"
5108 echo "ARMv6 enabled ${armv6-no}"
5109 echo "ARMv6T2 enabled ${armv6t2-no}"
5110 echo "VFP enabled ${vfp-no}"
5111 echo "NEON enabled ${neon-no}"
5113 if enabled ppc; then
5114 echo "AltiVec enabled ${altivec-no}"
5115 echo "VSX enabled ${vsx-no}"
5116 echo "POWER8 enabled ${power8-no}"
5117 echo "PPC 4xx optimizations ${ppc4xx-no}"
5118 echo "dcbzl available ${dcbzl-no}"
5120 echo "debug symbols ${debug-no}"
5121 echo "optimize for size ${small-no}"
5122 echo "optimizations ${optimizations-no}"
5123 echo "static ${static-no}"
5124 echo "shared ${shared-no}"
5125 echo "new filter support ${avfilter-no}"
5126 echo "network support ${network-no}"
5127 echo "threading support ${thread_type-no}"
5128 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5129 echo "SDL support ${sdl-no}"
5130 test -n "$random_seed" &&
5131 echo "random seed ${random_seed}"
5134 echo "External libraries:"
5135 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5137 echo "External libraries providing hardware acceleration:"
5138 print_enabled '' $HWACCEL_LIBRARY_LIST | print_3_columns
5142 print_enabled '' $LIBRARY_LIST | print_3_columns
5145 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5146 echo "Enabled ${type}s:"
5147 eval list=\$$(toupper $type)_LIST
5148 print_enabled '_*' $list | print_3_columns
5152 license="LGPL version 2.1 or later"
5153 if enabled nonfree; then
5154 license="nonfree and unredistributable"
5155 elif enabled gplv3; then
5156 license="GPL version 3 or later"
5157 elif enabled lgplv3; then
5158 license="LGPL version 3 or later"
5159 elif enabled gpl; then
5160 license="GPL version 2 or later"
5163 echo "License: $license"
5165 echo "Creating config.mak and config.h..."
5167 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5169 config_files="$TMPH config.mak"
5171 cat > config.mak <<EOF
5172 # Automatically generated by configure - do not modify!
5173 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5175 LIBDIR=\$(DESTDIR)$libdir
5176 SHLIBDIR=\$(DESTDIR)$shlibdir
5177 INCDIR=\$(DESTDIR)$incdir
5178 BINDIR=\$(DESTDIR)$bindir
5179 DATADIR=\$(DESTDIR)$datadir
5180 DOCDIR=\$(DESTDIR)$docdir
5181 MANDIR=\$(DESTDIR)$mandir
5182 SRC_PATH=$source_path
5185 INTRINSICS=$intrinsics
5192 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5194 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5205 OBJCFLAGS=$OBJCFLAGS
5220 LDEXEFLAGS=$LDEXEFLAGS
5221 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5222 STRIPFLAGS=$STRIPFLAGS
5223 YASMFLAGS=$YASMFLAGS
5224 BUILDSUF=$build_suffix
5232 EXTRA_VERSION=$extra_version
5234 CCDEP_FLAGS=$CCDEP_FLAGS
5236 ASDEP_FLAGS=$ASDEP_FLAGS
5237 CC_DEPFLAGS=$CC_DEPFLAGS
5238 AS_DEPFLAGS=$AS_DEPFLAGS
5241 HOSTCFLAGS=$host_cflags
5242 HOSTCPPFLAGS=$host_cppflags
5243 HOSTEXESUF=$HOSTEXESUF
5244 HOSTLDFLAGS=$host_ldflags
5247 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5248 HOSTCCDEP=$HOSTCCDEP
5249 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5250 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5254 TARGET_EXEC=$target_exec $target_exec_args
5255 TARGET_PATH=$target_path
5256 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5257 CFLAGS-avplay=$sdl_cflags
5258 ZLIB=$($ldflags_filter -lz)
5259 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5260 EXTRALIBS=$extralibs
5261 COMPAT_OBJS=$compat_objs
5264 LIBTARGET=${LIBTARGET}
5265 SLIBNAME=${SLIBNAME}
5266 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5267 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5268 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5269 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5270 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5271 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5272 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5273 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5274 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
5275 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5280 name=$(toupper $lcname)
5281 file=$source_path/$lcname/version.h
5282 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5283 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5284 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5285 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5286 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5289 map 'get_version $v' $LIBRARY_LIST
5291 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5293 print_program_libs(){
5294 eval "program_libs=\$${1}_libs"
5295 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5298 map 'print_program_libs $v' $PROGRAM_LIST
5301 /* Automatically generated by configure - do not modify! */
5302 #ifndef LIBAV_CONFIG_H
5303 #define LIBAV_CONFIG_H
5304 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5305 #define LIBAV_LICENSE "$(c_escape $license)"
5306 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5307 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5308 #define restrict $_restrict
5309 #define EXTERN_PREFIX "${extern_prefix}"
5310 #define EXTERN_ASM ${extern_prefix}
5311 #define SLIBSUF "$SLIBSUF"
5314 test -n "$malloc_prefix" &&
5315 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5317 if enabled yasm; then
5318 append config_files $TMPASM
5322 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5324 print_config ARCH_ "$config_files" $ARCH_LIST
5325 print_config HAVE_ "$config_files" $HAVE_LIST
5326 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5330 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5332 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5333 cp_if_changed $TMPH config.h
5336 enabled yasm && cp_if_changed $TMPASM config.asm
5339 /* Generated by ffconf */
5340 #ifndef AVUTIL_AVCONFIG_H
5341 #define AVUTIL_AVCONFIG_H
5344 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5346 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5348 cp_if_changed $TMPH libavutil/avconfig.h
5350 test -n "$WARNINGS" && printf "\n$WARNINGS"
5352 # generate the lists of enabled components
5353 print_enabled_components(){
5358 echo "static const $struct_name *$name[] = {" > $TMPH
5360 enabled $c && printf " &ff_%s,\n" $c >> $TMPH
5362 echo " NULL };" >> $TMPH
5363 cp_if_changed $TMPH $file
5366 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5367 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5369 # build pkg-config files
5372 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5375 pkgconfig_generate(){
5377 shortname=${name#lib}${build_suffix}
5381 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5382 requires=${requires%, }
5383 enabled ${name#lib} || return 0
5385 cat <<EOF > $name/$name.pc
5387 exec_prefix=\${prefix}
5392 Description: $comment
5394 Requires: $(enabled shared || echo $requires)
5395 Requires.private: $(enabled shared && echo $requires)
5397 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5398 Libs.private: $(enabled shared && echo $libs)
5399 Cflags: -I\${includedir}
5401 cat <<EOF > $name/$name-uninstalled.pc
5404 libdir=\${pcfiledir}
5405 includedir=${source_path}
5408 Description: $comment
5412 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5413 Cflags: -I\${includedir}
5417 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5418 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5419 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5420 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5421 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5422 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5423 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"