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:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
80 --logfile=FILE log tests and output to FILE [config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
175 External library support:
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libkvazaar HEVC video encoding
207 --enable-libmp3lame MP3 audio encoding
208 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
209 --enable-libopencore-amrwb AMR-WB audio decoding
210 --enable-libopencv computer vision
211 --enable-libopenh264 H.264 video encoding/decoding
212 --enable-libopenjpeg JPEG 2000 image encoding/decoding
213 --enable-libopus Opus audio encoding/decoding
214 --enable-libpulse Pulseaudio sound server
215 --enable-librtmp RTMP streaming
216 --enable-libschroedinger Dirac video encoding/decoding
217 --enable-libsnappy snappy compression
218 --enable-libspeex Speex audio encoding/decoding
219 --enable-libtheora Theora video encoding/decoding
220 --enable-libtwolame MP2 audio encoding
221 --enable-libvo-aacenc AAC audio encoding
222 --enable-libvo-amrwbenc AMR-WB audio encoding
223 --enable-libvorbis Vorbis audio encoding/decoding
224 --enable-libvpx VP* video encoding/decoding
225 --enable-libwavpack Wavpack audio encoding/decoding
226 --enable-libwebp WebP image encoding/decoding
227 --enable-libx264 H.264 video encoding
228 --enable-libx265 HEVC video encoding
229 --enable-libxavs Chinese AVS video encoding
230 --enable-libxcb X window system protocol communication
231 --enable-libxcb-shm X11 shm communication [auto]
232 --enable-libxcb-xfixes X11 mouse rendering [auto]
233 --enable-libxvid MPEG-4 ASP video encoding
234 --enable-openssl crypto
235 --enable-zlib compression [autodetect]
237 The following libraries provide various hardware acceleration features:
238 --enable-cuda Nvidia CUDA (dynamically linked)
239 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
240 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
241 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
242 --enable-libnpp Nvidia CUDA processing
243 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
244 --enable-nvenc Nvidia video encoding
245 --enable-omx OpenMAX IL
246 --enable-omx-rpi OpenMAX IL for Raspberry Pi
247 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
248 --enable-vda Apple Video Decode Acceleration [auto]
249 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
252 --arch=ARCH select architecture [$arch]
253 --cpu=CPU select the minimum required CPU (affects
254 instruction selection, may crash on older CPUs)
255 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
256 --enable-cross-compile assume a cross-compiler is used
257 --sysroot=PATH root of cross-build tree
258 --sysinclude=PATH location of cross-build system headers
259 --target-os=OS compiler targets OS [$target_os]
260 --target-exec=CMD command to run executables on target
261 --target-path=DIR path to view of build directory on target
262 --target-samples=DIR path to samples directory on target
263 --toolchain=NAME set tool defaults according to NAME
265 --ar=AR use archive tool AR [$ar_default]
266 --as=AS use assembler AS [$as_default]
267 --cc=CC use C compiler CC [$cc_default]
268 --objcc=OCC use ObjC compiler OCC [$cc_default]
269 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
270 --ld=LD use linker LD
271 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
272 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
273 --host-cc=HOSTCC use host C compiler HOSTCC
274 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
275 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
276 --host-ld=HOSTLD use host linker HOSTLD
277 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
278 --host-libs=HLIBS use libs HLIBS when linking for host
279 --host-os=OS compiler host OS [$target_os]
280 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
281 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
282 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
283 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
284 --extra-libs=ELIBS add ELIBS [$ELIBS]
285 --extra-version=STRING version string suffix []
286 --optflags=OPTFLAGS override optimization-related compiler flags
287 --enable-pic build position-independent code
288 --enable-thumb compile for Thumb instruction set
289 --enable-lto use link-time optimization
290 --env="ENV=override" override the environment variables
292 Advanced options (experts only):
293 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
294 --custom-allocator=NAME use a supported custom allocator
295 --disable-symver disable symbol versioning
296 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297 --disable-safe-bitstream-reader
298 disable buffer boundary checking in bitreaders
299 (faster, but may crash)
300 --enable-sram allow use of on-chip SRAM
302 Optimization options (experts only):
303 --disable-asm disable all assembly optimizations
304 --disable-altivec disable AltiVec optimizations
305 --disable-vsx disable VSX optimizations
306 --disable-power8 disable POWER8 optimizations
307 --disable-amd3dnow disable 3DNow! optimizations
308 --disable-amd3dnowext disable 3DNow! extended optimizations
309 --disable-mmx disable MMX optimizations
310 --disable-mmxext disable MMXEXT optimizations
311 --disable-sse disable SSE optimizations
312 --disable-sse2 disable SSE2 optimizations
313 --disable-sse3 disable SSE3 optimizations
314 --disable-ssse3 disable SSSE3 optimizations
315 --disable-sse4 disable SSE4 optimizations
316 --disable-sse42 disable SSE4.2 optimizations
317 --disable-avx disable AVX optimizations
318 --disable-xop disable XOP optimizations
319 --disable-fma3 disable FMA3 optimizations
320 --disable-fma4 disable FMA4 optimizations
321 --disable-avx2 disable AVX2 optimizations
322 --disable-armv5te disable armv5te optimizations
323 --disable-armv6 disable armv6 optimizations
324 --disable-armv6t2 disable armv6t2 optimizations
325 --disable-vfp disable VFP optimizations
326 --disable-neon disable NEON optimizations
327 --disable-inline-asm disable use of inline assembly
328 --disable-yasm disable use of nasm/yasm assembly
330 Developer options (useful when working on Libav itself):
331 --disable-debug disable debugging symbols
332 --enable-debug=LEVEL set the debug level [$debuglevel]
333 --disable-optimizations disable compiler optimizations
334 --enable-extra-warnings enable more compiler warnings
335 --samples=PATH location of test samples for FATE, if not set use
336 \$LIBAV_SAMPLES at make invocation time.
337 --enable-neon-clobber-test check NEON registers for clobbering (should be
338 used only for debugging purposes)
339 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340 should be used only for debugging purposes)
341 --enable-random randomly enable/disable components
343 --enable-random=LIST randomly enable/disable specific components or
344 --disable-random=LIST component groups. LIST is a comma-separated list
345 of NAME[:PROB] entries where NAME is a component
346 (group) and PROB the probability associated with
348 --random-seed=VALUE seed value for --enable/disable-random
349 --disable-valgrind-backtrace do not print a backtrace under Valgrind
350 (only applies to --disable-optimizations builds)
352 NOTE: Object files are built at the place where configure is launched.
360 echo "$@" >> $logfile
367 printf '%5s %s\n' "${i}" "${line}"
369 done < $1 >> $logfile
380 WARNINGS="${WARNINGS}WARNING: $*\n"
387 If you think configure made a mistake, make sure you are using the latest
388 version from Git. If the latest version fails, report the problem to the
389 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
391 if disabled logging; then
393 Rerun configure with logging enabled (do not use --disable-logging), and
394 include the log this produces with your report.
398 Include the log file "$logfile" produced by configure as this will help
405 # Avoid locale weirdness, besides we really just want to translate ASCII.
407 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
411 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
415 echo "$*" | sed 's/["\\]/\\\0/g'
419 v=$(echo "$1" | sed "s/'/'\\\\''/g")
420 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
425 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
432 eval "case $v in $pat) printf '%s ' $v ;; esac"
440 eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
447 for v; do eval $m; done
453 for v; do echo ${v}${suffix}; done
468 eval : \${$var:=$value}
473 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
479 eval $(sanitize_var_name "$var")='$*'
483 eval echo \$$(sanitize_var_name "$1")
488 eval level=\${${pvar}_level:=0}
489 eval ${pvar}_${level}="\$$pvar"
490 eval ${pvar}_level=$(($level+1))
496 eval level=\${${pvar}_level:-0}
497 test $level = 0 && continue
498 eval level=$(($level-1))
499 eval $pvar="\${${pvar}_${level}}"
500 eval ${pvar}_level=$level
501 eval unset ${pvar}_${level}
523 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
529 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
535 enabled $var && continue
536 eval sel="\$${var}_select"
537 eval sgs="\$${var}_suggest"
541 enable_deep_weak $sgs
553 disabled $var && continue
562 test "${1#!}" = "$1" && op== || op=!=
563 eval test "x\$${1#!}" $op "xyes"
567 test "${1#!}" = "$1" && op== || op=!=
568 eval test "x\$${1#!}" $op "xno"
573 enabled $opt || return 1
579 disabled $opt || return 1
585 enabled $opt && return 0
591 disabled $opt && return 0
598 eval : \${$opt:=\$${opt}_default}
606 [ $var = $value ] && return 0
614 enabled ${cfg}_checking && die "Circular dependency for $cfg."
615 disabled ${cfg}_checking && continue
616 enable ${cfg}_checking
619 eval dep_all="\$${cfg}_deps"
620 eval dep_any="\$${cfg}_deps_any"
621 eval dep_sel="\$${cfg}_select"
622 eval dep_sgs="\$${cfg}_suggest"
623 eval dep_ifa="\$${cfg}_if"
624 eval dep_ifn="\$${cfg}_if_any"
626 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
628 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
630 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
631 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
632 enabled_all $dep_all || disable $cfg
633 enabled_any $dep_any || disable $cfg
634 disabled_any $dep_sel && disable $cfg
636 if enabled $cfg; then
638 enable_deep_weak $dep_sgs
641 disable ${cfg}_checking
650 for cfg in $allopts; do
651 enabled $cfg || continue
652 eval dep_extralibs="\$${cfg}_extralibs"
653 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
661 map 'eval echo "$v \${$v:-no}"' "$@" |
662 awk "BEGIN { split(\"$files\", files) }
664 c = \"$pfx\" toupper(\$1);
670 if (file ~ /\\.h\$/) {
671 printf(\"#define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.asm\$/) {
673 printf(\"%%define %s %d\\n\", c, v) >>file;
674 } else if (file ~ /\\.mak\$/) {
675 n = -v ? \"\" : \"!\";
676 printf(\"%s%s=yes\\n\", n, c) >>file;
686 enabled $v && printf "%s\n" ${v%$suf}
693 eval "$var=\"\$$var $*\""
699 eval "$var=\"$* \$$var\""
705 for tok in $(eval echo \$$var); do
706 uniq_list="$(filter_out $tok $uniq_list) $tok"
708 eval "$var=\"${uniq_list}\""
716 append CFLAGS $($cflags_filter "$@")
719 add_cflags_headers(){
720 append CFLAGS_HEADERS $($cflags_filter "$@")
724 append ASFLAGS $($asflags_filter "$@")
728 append OBJCFLAGS $($objcflags_filter "$@")
732 append LDFLAGS $($ldflags_filter "$@")
736 append LDEXEFLAGS $($ldflags_filter "$@")
740 append STRIPFLAGS "$@"
744 prepend extralibs $($ldflags_filter "$@")
748 append host_cppflags "$@"
752 append host_cflags $($host_cflags_filter "$@")
756 append host_ldflags $($host_ldflags_filter "$@")
760 append compat_objs $1
762 map 'add_cppflags -D$v' "$@"
767 "$@" >> $logfile 2>&1
771 eval printf '%s\\n' $CC_O
775 eval printf '%s\\n' $CC_E
782 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
789 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
796 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
800 eval printf '%s\\n' $AS_O
807 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
811 log check_inline_asm "$@"
816 check_cc "$@" <<EOF && enable $name
817 void foo(void){ __asm__ volatile($code); }
823 check_inline_asm ${1}_inline "\"$2\""
824 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
832 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
836 eval printf '%s\\n' $LD_O
841 flags=$(filter_out '-l*' "$@")
842 libs=$(filter '-l*' "$@")
843 check_cc $($cflags_filter $flags) || return
844 flags=$($ldflags_filter $flags)
845 libs=$($ldflags_filter $libs)
846 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
851 test "${hdr%.h}" = "${hdr}" &&
852 echo "#include $hdr" ||
853 echo "#include <$hdr>"
863 for hdr in $headers; do
866 echo "int main(void) { $code; return 0; }"
867 } | check_$check "$@"
871 log check_cppflags "$@"
872 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
879 set -- $($cflags_filter "$@")
886 log check_cflags "$@"
887 test_cflags "$@" && add_cflags "$@"
891 log test_objcflags "$@"
892 set -- $($objcflags_filter "$@")
893 check_objcc "$@" <<EOF
899 log check_objcflags "$@"
900 test_objcflags "$@" && add_objcflags "$@"
904 log test_ldflags "$@"
906 int main(void){ return 0; }
911 log check_ldflags "$@"
912 test_ldflags "$@" && add_ldflags "$@"
916 log test_stripflags "$@"
917 # call check_cc to get a fresh TMPO
919 int main(void) { return 0; }
921 check_cmd $strip $STRIPFLAGS "$@" $TMPO
925 log check_stripflags "$@"
926 test_stripflags "$@" && add_stripflags "$@"
930 log check_header "$@"
934 check_cpp "$@" <<EOF && enable_safe $header
945 check_ld "$@" <<EOF && enable $func
947 int main(void){ $func(); }
952 log check_mathfunc "$@"
956 test $narg = 2 && args="f, g" || args="f"
958 check_ld "$@" <<EOF && enable $func
960 float foo(float f, float g) { return $func($args); }
961 int main(void){ return 0; }
965 check_func_headers(){
966 log check_func_headers "$@"
971 for hdr in $headers; do
974 for func in $funcs; do
975 echo "long check_$func(void) { return (long) $func; }"
977 echo "int main(void) { return 0; }"
978 } | check_ld "$@" && enable $funcs && enable_safe $headers
981 check_cpp_condition(){
982 log check_cpp_condition "$@"
989 #error "unsatisfied condition: $condition"
995 log test_cflags_cpp "$@"
999 set -- $($cflags_filter "$flags")
1000 check_cpp "$@" <<EOF
1002 #error "unsatisfied condition: $condition"
1012 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1016 log check_pkg_config "$@"
1022 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1023 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1024 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1025 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1026 set_safe "${pkg}_cflags" $pkg_cflags &&
1027 set_safe "${pkg}_extralibs" $pkg_libs
1031 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1035 log check_exec_crash "$@"
1038 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1039 # are safe but may not be available everywhere. Thus we use
1040 # raise(SIGTERM) instead. The check is run in a subshell so we
1041 # can redirect the "Terminated" message from the shell. SIGBUS
1042 # is not defined by standard C so it is used conditionally.
1044 (check_exec "$@") >> $logfile 2>&1 <<EOF
1046 static void sighandler(int sig){
1052 int (*func_ptr)(void) = foo;
1054 signal(SIGILL, sighandler);
1055 signal(SIGFPE, sighandler);
1056 signal(SIGSEGV, sighandler);
1058 signal(SIGBUS, sighandler);
1070 disable_safe "$type"
1071 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1075 log check_struct "$@"
1080 disable_safe "${struct}_${member}"
1081 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1082 enable_safe "${struct}_${member}"
1086 log check_builtin "$@"
1092 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1095 check_compile_assert(){
1096 log check_compile_assert "$@"
1102 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1111 check_lib "$headers" $func "$@" || die "ERROR: $name_version not found"
1114 require_pkg_config(){
1115 log require_pkg_config "$@"
1118 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1119 add_cflags $(get_safe "${pkg}_cflags")
1120 add_extralibs $(get_safe "${pkg}_extralibs")
1124 eval printf '%s\\n' $HOSTCC_E
1128 eval printf '%s\\n' $HOSTCC_O
1132 log check_host_cc "$@"
1135 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1139 log check_host_cpp "$@"
1142 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1145 check_host_cppflags(){
1146 log check_host_cppflags "$@"
1147 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1152 check_host_cflags(){
1153 log check_host_cflags "$@"
1154 set -- $($host_cflags_filter "$@")
1155 check_host_cc "$@" <<EOF && append host_cflags "$@"
1160 check_host_cpp_condition(){
1161 log check_host_cpp_condition "$@"
1165 check_host_cpp "$@" <<EOF
1168 #error "unsatisfied condition: $condition"
1176 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1180 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1181 mkdir -p "$(dirname $2)"
1185 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1186 # system-dependent things.
1188 AVCODEC_COMPONENTS="
1196 AVDEVICE_COMPONENTS="
1200 AVFILTER_COMPONENTS="
1203 AVFORMAT_COMPONENTS="
1209 AVRESAMPLE_COMPONENTS=""
1210 AVUTIL_COMPONENTS=""
1214 $AVDEVICE_COMPONENTS
1215 $AVFILTER_COMPONENTS
1216 $AVFORMAT_COMPONENTS
1217 $AVRESAMPLE_COMPONENTS
1222 decode_audio_example
1223 decode_video_example
1224 encode_audio_example
1225 encode_video_example
1226 filter_audio_example
1230 transcode_aac_example
1233 HWACCEL_LIBRARY_NONFREE_LIST="
1237 HWACCEL_LIBRARY_LIST="
1238 $HWACCEL_LIBRARY_NONFREE_LIST
1250 EXTERNAL_LIBRARY_GPL_LIST="
1258 EXTERNAL_LIBRARY_NONFREE_LIST="
1264 EXTERNAL_LIBRARY_VERSION3_LIST="
1271 EXTERNAL_LIBRARY_LIST="
1272 $EXTERNAL_LIBRARY_GPL_LIST
1273 $EXTERNAL_LIBRARY_NONFREE_LIST
1274 $EXTERNAL_LIBRARY_VERSION3_LIST
1316 safe_bitstream_reader
1359 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1362 $EXTERNAL_LIBRARY_LIST
1363 $HWACCEL_LIBRARY_LIST
1427 ARCH_EXT_LIST_X86_SIMD="
1455 $ARCH_EXT_LIST_X86_SIMD
1460 ARCH_EXT_LIST_MIPS="
1497 sync_val_compare_and_swap
1511 AVFoundation_AVFoundation_h
1516 cdio_paranoia_paranoia_h
1519 dev_bktr_ioctl_bt848_h
1520 dev_bktr_ioctl_meteor_h
1522 dev_video_bktr_ioctl_bt848_h
1523 dev_video_meteor_ioctl_meteor_h
1530 machine_ioctl_bt848_h
1531 machine_ioctl_meteor_h
1596 GetProcessAffinityMask
1597 GetProcessMemoryInfo
1600 GetSystemTimeAsFileTime
1605 jack_port_get_latency_range
1617 SetConsoleTextAttribute
1628 TOOLCHAIN_FEATURES="
1650 CONDITION_VARIABLE_Ptr
1653 struct_group_source_req
1654 struct_ip_mreq_source
1657 struct_rusage_ru_maxrss
1659 struct_sockaddr_sa_len
1660 struct_sockaddr_storage
1661 struct_v4l2_frmivalenum_discrete
1666 $(add_suffix _external $ARCH_EXT_LIST)
1667 $(add_suffix _inline $ARCH_EXT_LIST)
1682 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1691 # options emitted with CONFIG_ prefix but not available on the command line
1838 # code dependency declarations
1840 # architecture extensions
1845 armv8_deps="aarch64"
1846 neon_deps_any="aarch64 arm"
1847 intrinsics_neon_deps="neon"
1848 vfp_deps_any="aarch64 arm"
1851 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1859 x86_64_select="i686"
1860 x86_64_suggest="fast_cmov"
1863 amd3dnowext_deps="amd3dnow"
1879 mmx_external_deps="yasm"
1880 mmx_inline_deps="inline_asm"
1881 mmx_suggest="mmx_external mmx_inline"
1883 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1884 eval dep=\$${ext}_deps
1885 eval ${ext}_external_deps='"${dep}_external"'
1886 eval ${ext}_inline_deps='"${dep}_inline"'
1887 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1890 aligned_stack_if_any="aarch64 ppc x86"
1891 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1892 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1893 fast_unaligned_if_any="aarch64 ppc x86"
1894 simd_align_16_if_any="altivec neon sse"
1895 simd_align_32_if_any="avx"
1897 # system capabilities
1898 symver_if_any="symver_asm_label symver_gnu_asm"
1899 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1902 atomics_gcc_if="sync_val_compare_and_swap"
1903 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1904 atomics_win32_if="MemoryBarrier"
1905 atomics_native_if_any="$ATOMICS_LIST"
1906 w32threads_deps="atomics_native"
1907 threads_if_any="$THREADS_LIST"
1911 dirac_parse_select="golomb"
1912 error_resilience_select="me_cmp"
1913 faandct_deps="faan fdctdsp"
1914 faanidct_deps="faan idctdsp"
1915 h264dsp_select="startcode"
1916 hevc_ps_select="golomb"
1917 intrax8_select="blockdsp idctdsp"
1920 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1921 mpeg_er_select="error_resilience"
1922 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1923 mpegaudiodsp_select="dct"
1924 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1925 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1926 vc1dsp_select="h264chroma qpeldsp startcode"
1928 # decoders / encoders
1929 aac_decoder_select="imdct15 mdct sinewin"
1930 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1931 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1932 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1933 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1934 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1935 adpcm_g722_decoder_select="g722dsp"
1936 adpcm_g722_encoder_select="g722dsp"
1937 aic_decoder_select="golomb idctdsp"
1938 alac_encoder_select="lpc"
1939 als_decoder_select="bswapdsp"
1940 amrnb_decoder_select="lsp"
1941 amrwb_decoder_select="lsp"
1942 amv_decoder_select="sp5x_decoder"
1943 ape_decoder_select="bswapdsp"
1944 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1945 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1946 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1947 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1948 atrac1_decoder_select="mdct sinewin"
1949 atrac3_decoder_select="mdct"
1950 atrac3p_decoder_select="mdct sinewin"
1951 bink_decoder_select="blockdsp hpeldsp"
1952 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1953 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1954 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1955 cllc_decoder_select="bswapdsp"
1956 comfortnoise_encoder_select="lpc"
1957 cook_decoder_select="audiodsp mdct sinewin"
1958 cscd_decoder_select="lzo"
1959 cscd_decoder_suggest="zlib"
1960 dca_decoder_select="fmtconvert mdct"
1961 dds_decoder_select="texturedsp"
1962 dnxhd_decoder_select="blockdsp idctdsp"
1963 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1964 dvvideo_decoder_select="dvprofile idctdsp"
1965 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1966 dxa_decoder_deps="zlib"
1967 dxv_decoder_select="lzf texturedsp"
1968 eac3_decoder_select="ac3_decoder"
1969 eac3_encoder_select="ac3_encoder"
1970 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1971 eatgq_decoder_select="aandcttables idctdsp"
1972 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1973 exr_decoder_deps="zlib"
1974 ffv1_decoder_select="rangecoder"
1975 ffv1_encoder_select="rangecoder"
1976 ffvhuff_decoder_select="huffyuv_decoder"
1977 ffvhuff_encoder_select="huffyuv_encoder"
1978 fic_decoder_select="golomb"
1979 flac_decoder_select="flacdsp"
1980 flac_encoder_select="bswapdsp flacdsp lpc"
1981 flashsv_decoder_deps="zlib"
1982 flashsv_encoder_deps="zlib"
1983 flashsv2_decoder_deps="zlib"
1984 flv_decoder_select="h263_decoder"
1985 flv_encoder_select="h263_encoder"
1986 fourxm_decoder_select="blockdsp bswapdsp"
1987 fraps_decoder_select="bswapdsp huffman"
1988 g2m_decoder_deps="zlib"
1989 g2m_decoder_select="blockdsp idctdsp jpegtables"
1990 h261_decoder_select="mpeg_er mpegvideo"
1991 h261_encoder_select="aandcttables mpegvideoenc"
1992 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1993 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1994 h263i_decoder_select="h263_decoder"
1995 h263p_encoder_select="h263_encoder"
1996 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1997 h264_decoder_suggest="error_resilience"
1998 hap_decoder_select="snappy texturedsp"
1999 hap_encoder_deps="libsnappy"
2000 hap_encoder_select="texturedspenc"
2001 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2002 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2003 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2004 iac_decoder_select="imc_decoder"
2005 imc_decoder_select="bswapdsp fft mdct sinewin"
2006 indeo3_decoder_select="hpeldsp"
2007 indeo4_decoder_select="ividsp"
2008 indeo5_decoder_select="ividsp"
2009 interplay_video_decoder_select="hpeldsp"
2010 jpegls_decoder_select="mjpeg_decoder"
2011 jv_decoder_select="blockdsp"
2012 lagarith_decoder_select="huffyuvdsp"
2013 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2014 magicyuv_decoder_select="huffyuvdsp"
2015 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2016 metasound_decoder_select="lsp mdct sinewin"
2017 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2018 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2019 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2020 mjpegb_decoder_select="mjpeg_decoder"
2021 mlp_decoder_select="mlp_parser"
2022 motionpixels_decoder_select="bswapdsp"
2023 mp1_decoder_select="mpegaudio"
2024 mp1float_decoder_select="mpegaudio"
2025 mp2_decoder_select="mpegaudio"
2026 mp2float_decoder_select="mpegaudio"
2027 mp3_decoder_select="mpegaudio"
2028 mp3adu_decoder_select="mpegaudio"
2029 mp3adufloat_decoder_select="mpegaudio"
2030 mp3float_decoder_select="mpegaudio"
2031 mp3on4_decoder_select="mpegaudio"
2032 mp3on4float_decoder_select="mpegaudio"
2033 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2034 mpc8_decoder_select="mpegaudiodsp"
2035 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2036 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2037 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2038 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2039 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2040 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2041 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2042 mpeg4_encoder_select="h263_encoder"
2043 msa1_decoder_select="mss34dsp"
2044 msmpeg4v1_decoder_select="h263_decoder"
2045 msmpeg4v2_decoder_select="h263_decoder"
2046 msmpeg4v2_encoder_select="h263_encoder"
2047 msmpeg4v3_decoder_select="h263_decoder"
2048 msmpeg4v3_encoder_select="h263_encoder"
2049 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2050 mts2_decoder_select="mss34dsp"
2051 mxpeg_decoder_select="mjpeg_decoder"
2052 nellymoser_decoder_select="mdct sinewin"
2053 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2054 nuv_decoder_select="idctdsp lzo"
2055 on2avc_decoder_select="mdct"
2056 opus_decoder_deps="avresample"
2057 opus_decoder_select="imdct15"
2058 png_decoder_deps="zlib"
2059 png_encoder_deps="zlib"
2060 png_encoder_select="huffyuvencdsp"
2061 prores_decoder_select="idctdsp"
2062 prores_encoder_select="fdctdsp"
2063 qcelp_decoder_select="lsp"
2064 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2065 ra_144_encoder_select="audio_frame_queue lpc"
2066 ralf_decoder_select="golomb"
2067 rscc_decoder_deps="zlib"
2068 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2069 rv10_encoder_select="h263_encoder"
2070 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2071 rv20_encoder_select="h263_encoder"
2072 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2073 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2074 screenpresso_decoder_deps="zlib"
2075 sipr_decoder_select="lsp"
2076 sp5x_decoder_select="mjpeg_decoder"
2077 svq1_decoder_select="hpeldsp"
2078 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2079 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2080 svq3_decoder_suggest="zlib"
2081 tak_decoder_select="audiodsp"
2082 tdsc_decoder_deps="zlib"
2083 tdsc_decoder_select="mjpeg_decoder"
2084 theora_decoder_select="vp3_decoder"
2085 thp_decoder_select="mjpeg_decoder"
2086 tiff_decoder_suggest="zlib"
2087 tiff_encoder_suggest="zlib"
2088 truehd_decoder_select="mlp_decoder"
2089 truemotion2_decoder_select="bswapdsp"
2090 truespeech_decoder_select="bswapdsp"
2091 tscc_decoder_deps="zlib"
2092 txd_decoder_select="texturedsp"
2093 twinvq_decoder_select="mdct lsp sinewin"
2094 utvideo_decoder_select="bswapdsp"
2095 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2096 vble_decoder_select="huffyuvdsp"
2097 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2098 vc1image_decoder_select="vc1_decoder"
2099 vorbis_decoder_select="mdct"
2100 vorbis_encoder_select="mdct"
2101 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2102 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2103 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2104 vp6a_decoder_select="vp6_decoder"
2105 vp6f_decoder_select="vp6_decoder"
2106 vp7_decoder_select="h264pred videodsp vp8dsp"
2107 vp8_decoder_select="h264pred videodsp vp8dsp"
2108 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2109 webp_decoder_select="vp8_decoder"
2110 wmapro_decoder_select="mdct sinewin wma_freqs"
2111 wmav1_decoder_select="mdct sinewin wma_freqs"
2112 wmav1_encoder_select="mdct sinewin wma_freqs"
2113 wmav2_decoder_select="mdct sinewin wma_freqs"
2114 wmav2_encoder_select="mdct sinewin wma_freqs"
2115 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2116 wmv1_decoder_select="h263_decoder"
2117 wmv1_encoder_select="h263_encoder"
2118 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2119 wmv2_encoder_select="h263_encoder wmv2dsp"
2120 wmv3_decoder_select="vc1_decoder"
2121 wmv3image_decoder_select="wmv3_decoder"
2122 zerocodec_decoder_deps="zlib"
2123 zlib_decoder_deps="zlib"
2124 zlib_encoder_deps="zlib"
2125 zmbv_decoder_deps="zlib"
2126 zmbv_encoder_deps="zlib"
2128 # hardware accelerators
2129 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2130 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2131 dxva2_lib_deps="dxva2"
2132 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2133 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2135 h263_vaapi_hwaccel_deps="vaapi"
2136 h263_vaapi_hwaccel_select="h263_decoder"
2137 h264_d3d11va_hwaccel_deps="d3d11va"
2138 h264_d3d11va_hwaccel_select="h264_decoder"
2139 h264_dxva2_hwaccel_deps="dxva2"
2140 h264_dxva2_hwaccel_select="h264_decoder"
2141 h264_mmal_hwaccel_deps="mmal"
2142 h264_qsv_hwaccel_deps="libmfx"
2143 h264_vaapi_hwaccel_deps="vaapi"
2144 h264_vaapi_hwaccel_select="h264_decoder"
2145 h264_vda_hwaccel_deps="vda"
2146 h264_vda_hwaccel_select="h264_decoder"
2147 h264_vda_old_hwaccel_deps="vda"
2148 h264_vda_old_hwaccel_select="h264_decoder"
2149 h264_vdpau_hwaccel_deps="vdpau"
2150 h264_vdpau_hwaccel_select="h264_decoder"
2151 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2152 hevc_d3d11va_hwaccel_select="hevc_decoder"
2153 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2154 hevc_dxva2_hwaccel_select="hevc_decoder"
2155 hevc_qsv_hwaccel_deps="libmfx"
2156 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2157 hevc_vdpau_hwaccel_select="hevc_decoder"
2158 mpeg1_vdpau_hwaccel_deps="vdpau"
2159 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2160 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2161 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2162 mpeg2_dxva2_hwaccel_deps="dxva2"
2163 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
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_vaapi_hwaccel_deps="vaapi"
2171 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2172 mpeg4_vdpau_hwaccel_deps="vdpau"
2173 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2174 vc1_d3d11va_hwaccel_deps="d3d11va"
2175 vc1_d3d11va_hwaccel_select="vc1_decoder"
2176 vc1_dxva2_hwaccel_deps="dxva2"
2177 vc1_dxva2_hwaccel_select="vc1_decoder"
2178 vc1_mmal_hwaccel_deps="mmal"
2179 vc1_qsv_hwaccel_deps="libmfx"
2180 vc1_vaapi_hwaccel_deps="vaapi"
2181 vc1_vaapi_hwaccel_select="vc1_decoder"
2182 vc1_vdpau_hwaccel_deps="vdpau"
2183 vc1_vdpau_hwaccel_select="vc1_decoder"
2184 vp8_qsv_hwaccel_deps="libmfx"
2185 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2186 vp8_vaapi_hwaccel_select="vp8_decoder"
2187 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2188 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2189 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2190 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2192 # hardware-accelerated codecs
2193 nvenc_deps_any="dlopen LoadLibrary"
2194 nvenc_extralibs='$ldl'
2195 omx_deps="dlopen pthreads"
2196 omx_extralibs='$ldl'
2197 omx_rpi_select="omx"
2200 vaapi_encode_deps="vaapi"
2202 hwupload_cuda_filter_deps="cuda"
2203 scale_npp_filter_deps="cuda libnpp"
2205 h264_mmal_decoder_deps="mmal"
2206 h264_nvenc_encoder_deps="nvenc"
2207 h264_omx_encoder_deps="omx"
2208 h264_qsv_decoder_deps="libmfx"
2209 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2210 h264_qsv_encoder_deps="libmfx"
2211 h264_qsv_encoder_select="qsvenc"
2212 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2213 h264_vaapi_encoder_select="vaapi_encode golomb"
2214 hevc_nvenc_encoder_deps="nvenc"
2215 hevc_qsv_decoder_deps="libmfx"
2216 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2217 hevc_qsv_encoder_deps="libmfx"
2218 hevc_qsv_encoder_select="hevc_ps qsvenc"
2219 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2220 hevc_vaapi_encoder_select="vaapi_encode golomb"
2221 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2222 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2223 mpeg2_mmal_decoder_deps="mmal"
2224 mpeg2_qsv_decoder_deps="libmfx"
2225 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2226 mpeg2_qsv_encoder_deps="libmfx"
2227 mpeg2_qsv_encoder_select="qsvenc"
2228 mpeg4_omx_encoder_deps="omx"
2229 vc1_mmal_decoder_deps="mmal"
2230 vc1_qsv_decoder_deps="libmfx"
2231 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2232 vp8_qsv_decoder_deps="libmfx"
2233 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2235 nvenc_h264_encoder_select="h264_nvenc_encoder"
2236 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2239 h264_parser_select="golomb h264dsp h264parse"
2240 hevc_parser_select="hevc_ps"
2241 mpegaudio_parser_select="mpegaudioheader"
2242 mpegvideo_parser_select="mpegvideo"
2243 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2244 vc1_parser_select="vc1dsp"
2247 mjpeg2jpeg_bsf_select="jpegtables"
2249 # external libraries
2250 avisynth_deps="LoadLibrary"
2251 avxsynth_deps="dlopen"
2252 avisynth_demuxer_deps_any="avisynth avxsynth"
2253 avisynth_demuxer_select="riffdec"
2254 libdcadec_decoder_deps="libdcadec"
2255 libfaac_encoder_deps="libfaac"
2256 libfaac_encoder_select="audio_frame_queue"
2257 libfdk_aac_decoder_deps="libfdk_aac"
2258 libfdk_aac_encoder_deps="libfdk_aac"
2259 libfdk_aac_encoder_select="audio_frame_queue"
2260 libgsm_decoder_deps="libgsm"
2261 libgsm_encoder_deps="libgsm"
2262 libgsm_ms_decoder_deps="libgsm"
2263 libgsm_ms_encoder_deps="libgsm"
2264 libilbc_decoder_deps="libilbc"
2265 libilbc_encoder_deps="libilbc"
2266 libkvazaar_encoder_deps="libkvazaar"
2267 libmp3lame_encoder_deps="libmp3lame"
2268 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2269 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2270 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2271 libopencore_amrnb_encoder_select="audio_frame_queue"
2272 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2273 libopenh264_decoder_deps="libopenh264"
2274 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2275 libopenh264_encoder_deps="libopenh264"
2276 libopenjpeg_decoder_deps="libopenjpeg"
2277 libopenjpeg_encoder_deps="libopenjpeg"
2278 libopus_decoder_deps="libopus"
2279 libopus_encoder_deps="libopus"
2280 libopus_encoder_select="audio_frame_queue"
2281 libschroedinger_decoder_deps="libschroedinger"
2282 libschroedinger_encoder_deps="libschroedinger"
2283 libspeex_decoder_deps="libspeex"
2284 libspeex_encoder_deps="libspeex"
2285 libspeex_encoder_select="audio_frame_queue"
2286 libtheora_encoder_deps="libtheora"
2287 libtwolame_encoder_deps="libtwolame"
2288 libvo_aacenc_encoder_deps="libvo_aacenc"
2289 libvo_aacenc_encoder_select="audio_frame_queue"
2290 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2291 libvorbis_encoder_deps="libvorbis"
2292 libvorbis_encoder_select="audio_frame_queue"
2293 libvpx_vp8_decoder_deps="libvpx"
2294 libvpx_vp8_encoder_deps="libvpx"
2295 libvpx_vp9_decoder_deps="libvpx"
2296 libvpx_vp9_encoder_deps="libvpx"
2297 libwavpack_encoder_deps="libwavpack"
2298 libwavpack_encoder_select="audio_frame_queue"
2299 libwebp_encoder_deps="libwebp"
2300 libx262_encoder_deps="libx262"
2301 libx264_encoder_deps="libx264"
2302 libx265_encoder_deps="libx265"
2303 libxavs_encoder_deps="libxavs"
2304 libxvid_encoder_deps="libxvid mkstemp"
2307 ac3_demuxer_select="ac3_parser"
2308 asf_demuxer_select="riffdec"
2309 asf_muxer_select="riffenc"
2310 asf_stream_muxer_select="asf_muxer"
2311 avi_demuxer_select="iso_media riffdec"
2312 avi_muxer_select="riffenc"
2313 caf_demuxer_select="iso_media riffdec"
2314 dash_muxer_select="mp4_muxer"
2315 dirac_demuxer_select="dirac_parser"
2316 dv_demuxer_select="dvprofile"
2317 dv_muxer_select="dvprofile"
2318 dxa_demuxer_select="riffdec"
2319 eac3_demuxer_select="ac3_parser"
2320 f4v_muxer_select="mov_muxer"
2321 flac_demuxer_select="flac_parser"
2322 hds_muxer_select="flv_muxer"
2323 hls_muxer_select="mpegts_muxer"
2324 ipod_muxer_select="mov_muxer"
2325 ismv_muxer_select="mov_muxer"
2326 matroska_audio_muxer_select="matroska_muxer"
2327 matroska_demuxer_select="iso_media riffdec"
2328 matroska_demuxer_suggest="bzlib lzo zlib"
2329 matroska_muxer_select="iso_media riffenc"
2330 mmf_muxer_select="riffenc"
2331 mov_demuxer_select="iso_media riffdec"
2332 mov_demuxer_suggest="zlib"
2333 mov_muxer_select="iso_media riffenc rtpenc_chain"
2334 mp3_demuxer_select="mpegaudio_parser"
2335 mp3_muxer_select="mpegaudioheader"
2336 mp4_muxer_select="mov_muxer"
2337 mpegts_demuxer_select="iso_media"
2338 mpegts_muxer_select="adts_muxer latm_muxer"
2339 mpegtsraw_demuxer_select="mpegts_demuxer"
2340 mxf_d10_muxer_select="mxf_muxer"
2341 nut_muxer_select="riffenc"
2342 nuv_demuxer_select="riffdec"
2343 oga_muxer_select="ogg_muxer"
2344 ogg_demuxer_select="dirac_parse"
2345 opus_muxer_select="ogg_muxer"
2346 psp_muxer_select="mov_muxer"
2347 rtp_demuxer_select="sdp_demuxer"
2348 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2349 rtsp_demuxer_select="http_protocol rtpdec"
2350 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2351 sap_demuxer_select="sdp_demuxer"
2352 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2353 sdp_demuxer_select="rtpdec"
2354 smoothstreaming_muxer_select="ismv_muxer"
2355 spdif_muxer_select="aac_parser"
2356 spx_muxer_select="ogg_muxer"
2357 swf_demuxer_suggest="zlib"
2358 tak_demuxer_select="tak_parser"
2359 tg2_muxer_select="mov_muxer"
2360 tgp_muxer_select="mov_muxer"
2361 w64_demuxer_select="wav_demuxer"
2362 wav_demuxer_select="riffdec"
2363 wav_muxer_select="riffenc"
2364 webm_muxer_select="iso_media riffenc"
2365 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2366 wtv_demuxer_select="mpegts_demuxer riffdec"
2367 xmv_demuxer_select="riffdec"
2368 xwma_demuxer_select="riffdec"
2371 alsa_indev_deps="alsa"
2372 alsa_outdev_deps="alsa"
2373 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2374 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2375 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2376 dv1394_indev_deps="dv1394"
2377 dv1394_indev_select="dv_demuxer"
2378 fbdev_indev_deps="linux_fb_h"
2379 jack_indev_deps="jack"
2380 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2381 libcdio_indev_deps="libcdio"
2382 libdc1394_indev_deps="libdc1394"
2383 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2384 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2385 pulse_indev_deps="libpulse"
2386 sndio_indev_deps="sndio"
2387 sndio_outdev_deps="sndio"
2388 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2389 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2390 xcbgrab_indev_deps="libxcb"
2393 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2394 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2395 ffrtmpcrypt_protocol_select="tcp_protocol"
2396 ffrtmphttp_protocol_deps="!librtmp_protocol"
2397 ffrtmphttp_protocol_select="http_protocol"
2398 gopher_protocol_select="network"
2399 http_protocol_select="tcp_protocol"
2400 httpproxy_protocol_select="tcp_protocol"
2401 https_protocol_select="tls_protocol"
2402 icecast_protocol_select="http_protocol"
2403 librtmp_protocol_deps="librtmp"
2404 librtmpe_protocol_deps="librtmp"
2405 librtmps_protocol_deps="librtmp"
2406 librtmpt_protocol_deps="librtmp"
2407 librtmpte_protocol_deps="librtmp"
2408 mmsh_protocol_select="http_protocol"
2409 mmst_protocol_select="network"
2410 rtmp_protocol_deps="!librtmp_protocol"
2411 rtmp_protocol_select="tcp_protocol"
2412 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2413 rtmps_protocol_deps="!librtmp_protocol"
2414 rtmps_protocol_select="tls_protocol"
2415 rtmpt_protocol_select="ffrtmphttp_protocol"
2416 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2417 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2418 rtp_protocol_select="udp_protocol"
2419 sctp_protocol_deps="struct_sctp_event_subscribe"
2420 sctp_protocol_select="network"
2421 srtp_protocol_select="rtp_protocol srtp"
2422 tcp_protocol_select="network"
2423 tls_gnutls_protocol_deps="gnutls"
2424 tls_gnutls_protocol_select="tcp_protocol"
2425 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2426 tls_openssl_protocol_select="tcp_protocol"
2427 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2428 udp_protocol_select="network"
2429 unix_protocol_deps="sys_un_h"
2430 unix_protocol_select="network"
2433 asyncts_filter_deps="avresample"
2434 blackframe_filter_deps="gpl"
2435 boxblur_filter_deps="gpl"
2436 bs2b_filter_deps="libbs2b"
2437 cropdetect_filter_deps="gpl"
2438 deinterlace_qsv_filter_deps="libmfx"
2439 deinterlace_vaapi_filter_deps="vaapi"
2440 delogo_filter_deps="gpl"
2441 drawtext_filter_deps="libfreetype"
2442 frei0r_filter_deps="frei0r dlopen"
2443 frei0r_filter_extralibs='$ldl'
2444 frei0r_src_filter_deps="frei0r dlopen"
2445 frei0r_src_filter_extralibs='$ldl'
2446 hdcd_filter_deps="libhdcd"
2447 hqdn3d_filter_deps="gpl"
2448 interlace_filter_deps="gpl"
2449 movie_filter_deps="avcodec avformat"
2450 ocv_filter_deps="libopencv"
2451 resample_filter_deps="avresample"
2452 scale_filter_deps="swscale"
2453 scale_qsv_filter_deps="libmfx"
2454 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2457 decode_audio_example_deps="avcodec avutil"
2458 decode_video_example_deps="avcodec avutil"
2459 encode_audio_example_deps="avcodec avutil"
2460 encode_video_example_deps="avcodec avutil"
2461 filter_audio_example_deps="avfilter avutil"
2462 metadata_example_deps="avformat avutil"
2463 output_example_deps="avcodec avformat avresample avutil swscale"
2464 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2465 transcode_aac_example_deps="avcodec avformat avresample"
2467 # libraries, in linking order
2468 avcodec_deps="avutil"
2469 avcodec_select="null_bsf"
2470 avdevice_deps="avformat avcodec avutil"
2471 avfilter_deps="avutil"
2472 avformat_deps="avcodec avutil"
2473 avresample_deps="avutil"
2474 swscale_deps="avutil"
2477 avconv_deps="avcodec avfilter avformat avresample swscale"
2478 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2479 fps_filter null_filter resample_filter scale_filter
2481 avplay_deps="avcodec avfilter avformat avresample sdl"
2482 avplay_extralibs='$sdl_extralibs'
2483 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2484 avprobe_deps="avcodec avformat"
2488 texi2html_deps="doc"
2490 # default parameters
2492 logfile="config.log"
2494 # installation paths
2495 prefix_default="/usr/local"
2496 bindir_default='${prefix}/bin'
2497 datadir_default='${prefix}/share/avconv'
2498 docdir_default='${prefix}/share/doc/libav'
2499 incdir_default='${prefix}/include'
2500 libdir_default='${prefix}/lib'
2501 mandir_default='${prefix}/share/man'
2502 shlibdir_default="$libdir_default"
2507 host_cc_default="gcc"
2511 pkg_config_default=pkg-config
2514 version_script='--version-script'
2518 arch_default=$(uname -m)
2523 target_os_default=$(tolower $(uname -s))
2524 host_os=$target_os_default
2526 # configurable options
2527 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2532 enable faan faandct faanidct
2533 enable optimizations
2534 enable safe_bitstream_reader
2536 enable swscale_alpha
2537 enable valgrind_backtrace
2539 # By default, enable only those hwaccels that have no external dependencies.
2540 enable d3d11va dxva2 vda vdpau
2543 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2546 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2549 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2550 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2551 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2552 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2553 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2554 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2555 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2577 host_extralibs='-lm'
2578 host_cflags_filter=echo
2579 host_ldflags_filter=echo
2581 target_path='$(CURDIR)'
2583 # since the object filename is not given with the -MM flag, the compiler
2584 # is only able to print the basename, and we must add the path ourselves
2585 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2589 if test -f configure; then
2592 source_path=$(cd $(dirname "$0"); pwd)
2593 echo "$source_path" | grep -q '[[:blank:]]' &&
2594 die "Out of tree builds are impossible with whitespace in source path."
2595 test -e "$source_path/config.h" &&
2596 die "Out of tree builds are impossible with config.h in source dir."
2603 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2609 file=$source_path/$3
2610 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2613 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2614 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2615 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2616 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2617 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2618 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2619 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2620 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2621 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2623 find_things_extern(){
2626 file=$source_path/$3
2627 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2630 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2631 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2647 for n in $COMPONENT_LIST; do
2648 v=$(toupper ${n%s})_LIST
2650 eval ${n}_if_any="\$$v"
2653 enable $ARCH_EXT_LIST
2656 echo "Unknown option \"$1\"."
2657 echo "See $0 --help for available options."
2662 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2668 echo $* | sed s/$suffix//g | print_3_columns
2680 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2681 echo "prob ${prob:-0.5}"
2689 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2690 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2699 --extra-ldexeflags=*)
2700 add_ldexeflags $optval
2703 add_extralibs $optval
2706 disable $INDEV_LIST $OUTDEV_LIST
2709 debuglevel="$optval"
2712 disable $PROGRAM_LIST
2714 --disable-everything)
2715 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2718 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2719 disable $LIBRARY_LIST $PROGRAM_LIST doc
2721 --enable-random|--disable-random)
2722 action=${opt%%-random}
2723 do_random ${action#--} $COMPONENT_LIST
2725 --enable-random=*|--disable-random=*)
2726 action=${opt%%-random=*}
2727 do_random ${action#--} $optval
2729 --enable-*=*|--disable-*=*)
2730 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2731 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2732 eval list=\$$(toupper $thing)_LIST
2733 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2734 $action $(filter "$name" $list)
2736 --enable-avserver|--disable-avserver*)
2737 warn "avserver has been removed, the ${opt} option is only"\
2738 "provided for compatibility and will be removed in the future"
2740 --enable-?*|--disable-?*)
2741 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2742 if is_in $option $COMPONENT_LIST; then
2743 test $action = disable && action=unset
2744 eval $action \$$(toupper ${option%s})_LIST
2745 elif is_in $option $CMDLINE_SELECT; then
2752 NAME="${opt#--list-}"
2753 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2755 eval show_list $NAME \$$(toupper $NAME)_LIST
2757 --help|-h) show_help
2759 --quiet|-q) quiet=yes
2762 optname="${opt%%=*}"
2763 optname="${optname#--}"
2764 optname=$(echo "$optname" | sed 's/-/_/g')
2765 if is_in $optname $CMDLINE_SET; then
2766 eval $optname='$optval'
2767 elif is_in $optname $CMDLINE_APPEND; then
2768 append $optname "$optval"
2780 disabled logging && logfile=/dev/null
2782 # Die early if licensing-related configure options are incompatible.
2783 die_license_disabled() {
2784 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2787 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2788 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2789 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2791 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2793 # Disable all the library-specific components if the library itself
2794 # is disabled, see AVCODEC_LIST and following _LIST variables.
2796 disable_components(){
2797 disabled ${1} && disable $(
2798 eval components="\$$(toupper ${1})_COMPONENTS"
2799 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2803 map 'disable_components $v' $LIBRARY_LIST
2805 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2808 case "$toolchain" in
2810 cc_default="${toolchain%-asan}"
2811 add_cflags -fsanitize=address
2812 add_ldflags -fsanitize=address
2815 cc_default="${toolchain%-msan}"
2816 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2817 add_ldflags -fsanitize=memory
2820 cc_default="${toolchain%-tsan}"
2821 add_cflags -fsanitize=thread -fPIE
2822 add_ldflags -fsanitize=thread -pie
2823 case "$toolchain" in
2831 cc_default="${toolchain%-usan}"
2832 add_cflags -fsanitize=undefined
2833 add_ldflags -fsanitize=undefined
2834 case "$toolchain" in
2841 target_exec_default="valgrind"
2842 case "$toolchain" in
2844 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2847 target_exec_args="--track-origins=yes --leak-check=full"
2852 # Check whether the current MSVC version needs the C99 converter.
2853 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2854 # support enough of C99 to build libav. Default to the new
2855 # behaviour if the regexp was unable to match anything, since this
2856 # successfully parses the version number of existing supported
2857 # versions that require the converter (MSVC 2010 and 2012).
2858 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2859 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2862 cc_default="c99wrap cl"
2864 ld_default="$source_path/compat/windows/mslink"
2865 nm_default="dumpbin -symbols"
2872 target_os_default="win32"
2873 # Use a relative path for TMPDIR. This makes sure all the
2874 # ffconf temp files are written with a relative path, avoiding
2875 # issues with msys/win32 path conversion for MSVC parameters
2876 # such as -Fo<file> or -out:<file>.
2882 nm_default="dumpbin -symbols"
2884 target_os_default="win32"
2888 add_cflags -fprofile-arcs -ftest-coverage
2889 add_ldflags -fprofile-arcs -ftest-coverage
2892 add_cflags -fprofile-arcs -ftest-coverage
2893 add_ldflags --coverage
2896 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2897 add_cflags -fno-strict-overflow -fstack-protector-all
2898 add_ldflags -Wl,-z,relro -Wl,-z,now
2901 die "Unknown toolchain $toolchain"
2905 test -n "$cross_prefix" && enable cross_compile
2907 if enabled cross_compile; then
2908 test -n "$arch" && test -n "$target_os" ||
2909 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2912 ar_default="${cross_prefix}${ar_default}"
2913 cc_default="${cross_prefix}${cc_default}"
2914 occ_default="${cross_prefix}${occ_default}"
2915 nm_default="${cross_prefix}${nm_default}"
2916 pkg_config_default="${cross_prefix}${pkg_config_default}"
2917 ranlib="${cross_prefix}${ranlib}"
2918 strip="${cross_prefix}${strip}"
2920 sysinclude_default="${sysroot}/usr/include"
2922 set_default arch cc pkg_config sysinclude target_exec target_os
2923 enabled cross_compile || host_cc_default=$cc
2926 if ! $pkg_config --version >/dev/null 2>&1; then
2927 warn "$pkg_config not found, library detection may fail."
2933 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2937 EXESUF=$(exesuf $target_os)
2938 HOSTEXESUF=$(exesuf $host_os)
2940 # set temporary file name
2941 : ${TMPDIR:=$TEMPDIR}
2945 if ! check_cmd mktemp -u XXXXXX; then
2946 # simple replacement for missing mktemp
2947 # NOT SAFE FOR GENERAL USE
2949 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2954 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2955 (set -C; exec > $tmp) 2>/dev/null ||
2956 die "Unable to create temporary file in $TMPDIR."
2957 append TMPFILES $tmp
2961 trap 'rm -f -- $TMPFILES' EXIT
2965 tmpfile TMPE $EXESUF
2976 # make sure we can execute files in $TMPDIR
2977 cat > $TMPSH 2>> $logfile <<EOF
2980 chmod +x $TMPSH >> $logfile 2>&1
2981 if ! $TMPSH >> $logfile 2>&1; then
2983 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2984 variable to another directory and make sure that it is not mounted noexec.
2986 die "Sanity test failed."
2992 # Filter out MSVC cl.exe options from cflags that shouldn't
2993 # be passed to gas-preprocessor
3003 -std=c99) echo -c99 ;;
3004 -mcpu=*) echo -arch ${flag#*=} ;;
3005 -mieee) echo -ieee ;;
3006 -O*|-fast) echo $flag ;;
3007 -fno-math-errno) echo -assume nomath_errno ;;
3009 -Wall) echo -msg_enable level2 ;;
3010 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3011 -Wl,*) echo $flag ;;
3021 -Wno-switch) echo -Wno-switch-enum ;;
3022 -Wno-format-zero-length) ;;
3023 -Wdisabled-optimization) ;;
3024 -Wno-pointer-sign) echo -Wno-other ;;
3030 msvc_common_flags(){
3033 # In addition to specifying certain flags under the compiler
3034 # specific filters, they must be specified here as well or else the
3035 # generic catch all at the bottom will print the original flag.
3039 -fomit-frame-pointer) ;;
3043 -fno-signed-zeros) ;;
3047 -lz) echo zlib.lib ;;
3048 -lx264) echo libx264.lib ;;
3049 -l*) echo ${flag#-l}.lib ;;
3050 -L*) echo -libpath:${flag#-L} ;;
3057 msvc_common_flags "$@"
3060 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3061 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3062 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3063 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3069 msvc_common_flags "$@"
3072 # Despite what Intel's documentation says -Wall, which is supported
3073 # on Windows, does enable remarks so disable them here.
3074 -Wall) echo $flag -Qdiag-disable:remark ;;
3075 -std=c99) echo -Qstd=c99 ;;
3083 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3084 -fomit-frame-pointer) echo -Mnoframe ;;
3095 case "${flag#*=}" in
3096 native) echo -xtarget=native ;;
3097 v9|niagara) echo -xarch=sparc ;;
3098 ultrasparc) echo -xarch=sparcvis ;;
3099 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3100 i586|pentium) echo -xchip=pentium ;;
3101 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3102 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3103 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3104 pentium4*) echo -xtarget=pentium4 ;;
3105 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3106 *-sse3) echo -xarch=sse3 ;;
3107 core2) echo -xarch=ssse3 -xchip=core2 ;;
3108 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3109 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3110 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3111 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3112 k8|opteron|athlon64|athlon-fx)
3113 echo -xarch=sse2a ;;
3114 athlon*) echo -xarch=pentium_proa ;;
3117 -std=c99) echo -xc99 ;;
3118 -fomit-frame-pointer) echo -xregs=frameptr ;;
3119 -fPIC) echo -KPIC -xcode=pic32 ;;
3120 -W*,*) echo $flag ;;
3121 -f*-*|-W*|-mimpure-text) ;;
3132 case "${flag#*=}" in
3133 armv7-a|cortex-a*) echo -mv=7a8 ;;
3134 armv7-r|cortex-r*) echo -mv=7r4 ;;
3135 armv7-m|cortex-m*) echo -mv=7m3 ;;
3136 armv6*|arm11*) echo -mv=6 ;;
3137 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3139 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3142 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3143 -mfpu=vfp) echo --float_support=vfpv2 ;;
3144 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3145 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3146 -msoft-float) echo --float_support=vfplib ;;
3147 -O[0-3]|-mf=*) echo $flag ;;
3149 -pds=*) echo $flag ;;
3150 -D*|-I*) echo $flag ;;
3151 --gcc|--abi=*) echo $flag ;;
3161 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3162 unset _ld_o _ldflags _ld_lib _ld_path
3163 unset _depflags _DEPCMD _DEPFLAGS
3166 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3168 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3169 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3170 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3173 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3175 gcc_version=$($_cc --version | head -n1)
3176 gcc_basever=$($_cc -dumpversion)
3177 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3178 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3179 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3180 if ! $_cc -dumpversion | grep -q '^2\.'; then
3181 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3185 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3187 _ident=$($_cc --version | head -n1)
3192 elif $_cc -v 2>&1 | grep -q xlc; then
3194 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3196 _cflags_size='-O5 -qcompact'
3197 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3199 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3201 _cflags_speed='-fast'
3203 _flags_filter=ccc_flags
3204 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3205 test -d "$sysroot" || die "No valid sysroot specified."
3207 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3208 armcc_conf="$PWD/armcc.conf"
3209 $_cc --arm_linux_configure \
3210 --arm_linux_config_file="$armcc_conf" \
3211 --configure_sysroot="$sysroot" \
3212 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3213 die "Error creating armcc configuration file."
3214 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3215 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3216 as_default="${cross_prefix}gcc"
3220 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3222 _ident=$($_cc -version | head -n1 | tr -s ' ')
3223 _flags='--gcc --abi=eabi -me'
3226 _depflags='-ppa -ppd=$(@:.o=.d)'
3227 _cflags_speed='-O3 -mf=5'
3228 _cflags_size='-O3 -mf=2'
3229 _flags_filter=tms470_flags
3230 elif $_cc -v 2>&1 | grep -q clang; then
3232 _ident=$($_cc --version 2>/dev/null | head -n1)
3233 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3236 elif $_cc -V 2>&1 | grep -q Sun; then
3238 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3239 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3240 _DEPFLAGS='-xM1 -xc99'
3243 _cflags_size='-O5 -xspace'
3244 _flags_filter=suncc_flags
3245 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3247 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3248 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3251 _flags_filter='filter_out -Wdisabled-optimization'
3252 elif $_cc -v 2>&1 | grep -q Open64; then
3254 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3255 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3258 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3259 elif $_cc -V 2>&1 | grep -q Portland; then
3261 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3262 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3263 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3264 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3266 _flags_filter=pgi_flags
3267 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3269 _ident=$($_cc | head -n1)
3270 # 4509: "This form of conditional instruction is deprecated"
3271 _flags="-nologo -ignore 4509"
3272 _flags_filter=armasm_flags
3273 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3275 _ident=$($_cc 2>&1 | head -n1)
3276 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3277 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3281 if $_cc -nologo- 2>&1 | grep -q Linker; then
3288 _flags_filter=msvc_flags
3290 _ld_path='-libpath:'
3292 elif $_cc 2>&1 | grep -q Intel; then
3294 _ident=$($_cc 2>&1 | head -n1)
3295 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3296 # Not only is O3 broken on 13.x+ but it is slower on all previous
3297 # versions (tested) as well.
3299 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3300 if $_cc 2>&1 | grep -q Linker; then
3307 _flags_filter=icl_flags
3309 _ld_path='-libpath:'
3310 # -Qdiag-error to make icl error when seeing certain unknown arguments
3311 _flags='-nologo -Qdiag-error:4044,10157'
3312 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3313 # with MSVC which enables it by default.
3314 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3315 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3316 # lld can emulate multiple different linkers; in ms link.exe mode,
3317 # the -? parameter gives the help output which contains an identifyable
3318 # string, while it gives an error in other modes.
3320 # The link.exe mode doesn't have a switch for getting the version,
3321 # but we can force it back to gnu mode and get the version from there.
3322 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3324 _flags_filter=msvc_flags
3326 _ld_path='-libpath:'
3327 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3329 _ident=$($_cc --version | head -n1)
3333 _flags_filter=cparser_flags
3336 eval ${pfx}_type=\$_type
3337 eval ${pfx}_ident=\$_ident
3341 eval ${1}_C=\${_cc_c-\${${1}_C}}
3342 eval ${1}_E=\${_cc_e-\${${1}_E}}
3343 eval ${1}_O=\${_cc_o-\${${1}_O}}
3345 if [ -n "$_depflags" ]; then
3346 eval ${1}_DEPFLAGS=\$_depflags
3348 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3349 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3350 eval DEP${1}FLAGS=\$_flags
3355 cflags_filter=$_flags_filter
3356 cflags_speed=$_cflags_speed
3357 cflags_size=$_cflags_size
3358 cflags_noopt=$_cflags_noopt
3359 add_cflags $_flags $_cflags
3360 cc_ldflags=$_ldflags
3363 probe_cc hostcc "$host_cc"
3364 host_cflags_filter=$_flags_filter
3365 add_host_cflags $_flags $_cflags
3368 test -n "$cc_type" && enable $cc_type ||
3369 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3371 : ${as_default:=$cc}
3372 : ${objcc_default:=$cc}
3373 : ${dep_cc_default:=$cc}
3374 : ${ld_default:=$cc}
3375 : ${host_ld_default:=$host_cc}
3376 set_default ar as objcc dep_cc ld host_ld
3379 asflags_filter=$_flags_filter
3380 add_asflags $_flags $_cflags
3383 probe_cc objcc "$objcc"
3384 objcflags_filter=$_flags_filter
3385 add_objcflags $_flags $_cflags
3389 ldflags_filter=$_flags_filter
3390 add_ldflags $_flags $_ldflags
3391 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3393 LD_LIB=${_ld_lib-$LD_LIB}
3394 LD_PATH=${_ld_path-$LD_PATH}
3396 probe_cc hostld "$host_ld"
3397 host_ldflags_filter=$_flags_filter
3398 add_host_ldflags $_flags $_ldflags
3399 HOSTLD_O=${_ld_o-$HOSTLD_O}
3401 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3402 probe_cc depcc "$dep_cc"
3403 CCDEP=${_DEPCMD:-$DEPCMD}
3404 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3408 if $ar 2>&1 | grep -q Microsoft; then
3411 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3414 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3415 arflags='-Xany -r -c'
3422 add_cflags $extra_cflags
3423 add_objcflags $extra_objcflags
3424 add_asflags $extra_cflags
3426 if test -n "$sysroot"; then
3429 add_cppflags --sysroot="$sysroot"
3430 add_ldflags --sysroot="$sysroot"
3433 add_cppflags -I"$sysinclude"
3434 add_ldflags --sysroot="$sysroot"
3439 if test "$cpu" = host; then
3440 enabled cross_compile &&
3441 die "--cpu=host makes no sense when cross-compiling."
3446 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3448 s/.*$1=\\([^ ]*\\).*/\\1/
3453 cpu=$(check_native -march || check_native -mcpu)
3457 test "${cpu:-host}" = host &&
3458 die "--cpu=host not supported with compiler $cc"
3461 # Deal with common $arch aliases
3485 "Power Macintosh"|ppc*|powerpc*)
3500 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3505 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3508 # Add processor-specific flags
3509 if enabled aarch64; then
3513 cpuflags="-march=$cpu"
3516 cpuflags="-mcpu=$cpu"
3520 elif enabled alpha; then
3522 cpuflags="-mcpu=$cpu"
3524 elif enabled arm; then
3527 check_cpp_condition stddef.h \
3528 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3533 if check_arm_arch 4; then echo armv4
3534 elif check_arm_arch 4T; then echo armv4t
3535 elif check_arm_arch 5; then echo armv5
3536 elif check_arm_arch 5E; then echo armv5e
3537 elif check_arm_arch 5T; then echo armv5t
3538 elif check_arm_arch 5TE; then echo armv5te
3539 elif check_arm_arch 5TEJ; then echo armv5te
3540 elif check_arm_arch 6; then echo armv6
3541 elif check_arm_arch 6J; then echo armv6j
3542 elif check_arm_arch 6K; then echo armv6k
3543 elif check_arm_arch 6Z; then echo armv6z
3544 elif check_arm_arch 6ZK; then echo armv6zk
3545 elif check_arm_arch 6T2; then echo armv6t2
3546 elif check_arm_arch 7; then echo armv7
3547 elif check_arm_arch 7A 7_A; then echo armv7-a
3548 elif check_arm_arch 7S; then echo armv7-a
3549 elif check_arm_arch 7R 7_R; then echo armv7-r
3550 elif check_arm_arch 7M 7_M; then echo armv7-m
3551 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3552 elif check_arm_arch 8A 8_A; then echo armv8-a
3556 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3560 cpuflags="-march=$cpu"
3561 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3564 cpuflags="-mcpu=$cpu"
3566 cortex-a*) subarch=armv7a ;;
3567 cortex-r*) subarch=armv7r ;;
3568 cortex-m*) enable thumb; subarch=armv7m ;;
3569 arm11*) subarch=armv6 ;;
3570 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3571 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3572 *) subarch=$(probe_arm_arch) ;;
3578 armv5t*) enable fast_clz ;;
3579 armv[6-8]*) enable fast_clz fast_unaligned ;;
3582 elif enabled avr32; then
3587 cpuflags="-mpart=$cpu"
3591 cpuflags="-march=$cpu"
3595 cpuflags="-mcpu=$cpu"
3599 cpuflags="-march=$cpu"
3603 elif enabled bfin; then
3605 cpuflags="-mcpu=$cpu"
3607 elif enabled mips; then
3609 cpuflags="-march=$cpu"
3611 elif enabled ppc; then
3615 case $(tolower $cpu) in
3616 601|ppc601|powerpc601)
3617 cpuflags="-mcpu=601"
3620 603*|ppc603*|powerpc603*)
3621 cpuflags="-mcpu=603"
3624 604*|ppc604*|powerpc604*)
3625 cpuflags="-mcpu=604"
3628 g3|75*|ppc75*|powerpc75*)
3629 cpuflags="-mcpu=750"
3632 g4|745*|ppc745*|powerpc745*)
3633 cpuflags="-mcpu=7450"
3636 74*|ppc74*|powerpc74*)
3637 cpuflags="-mcpu=7400"
3640 g5|970|ppc970|powerpc970)
3641 cpuflags="-mcpu=970"
3645 cpuflags="-mcpu=$cpu"
3649 cpuflags="-mcpu=$cpu"
3653 cpuflags="-mcpu=cell"
3658 cpuflags="-mcpu=e500mc"
3662 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3667 cpuflags="-mcpu=8540 -mhard-float"
3673 elif enabled sparc; then
3676 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3677 cpuflags="-mcpu=$cpu"
3679 ultrasparc*|niagara[234])
3680 cpuflags="-mcpu=$cpu"
3684 elif enabled x86; then
3688 cpuflags="-march=$cpu"
3692 # targets that do NOT support nopl and conditional mov (cmov)
3693 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3694 cpuflags="-march=$cpu"
3697 # targets that do support nopl and conditional mov (cmov)
3698 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3699 cpuflags="-march=$cpu"
3703 # targets that do support conditional mov but on which it's slow
3704 pentium4|pentium4m|prescott|nocona)
3705 cpuflags="-march=$cpu"
3713 if [ "$cpu" != generic ]; then
3714 add_cflags $cpuflags
3715 add_asflags $cpuflags
3716 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3719 # compiler sanity check
3721 int main(void){ return 0; }
3723 if test "$?" != 0; then
3724 echo "$cc is unable to create an executable file."
3725 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3726 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3727 echo "Only do this if you know what cross compiling means."
3729 die "C compiler test failed."
3732 add_cppflags -D_ISOC99_SOURCE
3734 # some compilers silently accept -std=c11, so we also need to check that the
3735 # version macro is defined properly
3736 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3739 check_cflags -std=c99
3742 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3745 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3749 add_host_cppflags -D_ISOC99_SOURCE
3750 check_host_cflags -std=c99
3751 check_host_cflags -Wall
3752 check_host_cflags -O3
3758 check_code cc "" "int test[2*($expr) - 1]" &&
3759 subarch=$arch64 || subarch=$arch32
3767 check_64bit mips mips64 '_MIPS_SIM > 1'
3771 check_64bit parisc parisc64 'sizeof(void *) > 4'
3775 check_64bit ppc ppc64 'sizeof(void *) > 4'
3779 check_64bit s390 s390x 'sizeof(void *) > 4'
3783 check_64bit sparc sparc64 'sizeof(void *) > 4'
3787 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3788 if test "$subarch" = "x86_64"; then
3795 enabled spic && enable_weak pic
3801 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3802 enabled shared && add_ldflags -Wl,-brtl
3806 enable section_data_rel_ro
3807 SLIB_INSTALL_NAME='$(SLIBNAME)'
3809 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3812 prefix_default="/boot/common"
3813 network_extralibs="-lnetwork"
3817 SHFLAGS='-shared -Wl,-h,$$(@F)'
3818 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3819 network_extralibs="-lsocket -lnsl"
3820 # When using suncc to build, the Solaris linker will mark
3821 # an executable with each instruction set encountered by
3822 # the Solaris assembler. As our libraries contain their own
3823 # guards for processor-specific code, instead suppress
3824 # generation of the HWCAPS ELF section on Solaris x86 only.
3825 enabled_all suncc x86 &&
3826 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3827 add_ldflags -Wl,-M,mapfile
3828 nm_default='nm -P -g'
3830 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3834 oss_indev_extralibs="-lossaudio"
3835 oss_outdev_extralibs="-lossaudio"
3840 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3842 oss_indev_extralibs="-lossaudio"
3843 oss_outdev_extralibs="-lossaudio"
3851 add_extralibs -lpoll -lgnugetopt
3854 enabled ppc && add_asflags -force_cpusubtype_ALL
3855 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3856 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3857 add_ldflags -Wl,-dynamic,-search_paths_first
3859 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3860 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3862 enabled x86_64 && objformat="macho64"
3863 enabled_any pic shared ||
3864 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3865 check_header dispatch/dispatch.h &&
3866 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3869 die "Native MSYS builds are discouraged, please use the MINGW environment."
3872 if test $target_os = "mingw32ce"; then
3878 if enabled x86_64; then
3879 LIBTARGET="i386:x86-64"
3880 elif enabled arm; then
3883 check_ldflags -Wl,--nxcompat
3884 check_ldflags -Wl,--dynamicbase
3885 shlibdir_default="$bindir_default"
3888 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3889 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3890 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3891 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3893 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3894 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3895 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3897 dlltool="${cross_prefix}dlltool"
3903 if enabled shared; then
3904 # Link to the import library instead of the normal static library
3907 # Cannot build both shared and static libs with MSVC or icl.
3910 shlibdir_default="$bindir_default"
3913 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3914 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3915 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3916 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3918 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3919 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3920 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3927 shlibdir_default="$bindir_default"
3930 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3931 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3932 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3934 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3935 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3939 *-dos|freedos|opendos)
3940 network_extralibs="-lsocket"
3943 add_cppflags -U__STRICT_ANSI__
3947 enable section_data_rel_ro
3951 ranlib="echo ignoring ranlib"
3956 add_cppflags -D_GNU_SOURCE
3957 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3958 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3962 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3963 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3964 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3965 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3966 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3967 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3968 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3969 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3970 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3971 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3975 add_cppflags -D_BSD_SOURCE
3980 add_cppflags -D_QNX_SOURCE
3981 network_extralibs="-lsocket"
3986 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3987 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3988 add_ldflags -Wl,--target1-abs,--no-undefined \
3989 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3990 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3991 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3992 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3993 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3996 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4003 die "Unknown OS '$target_os'."
4007 # determine libc flavour
4012 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4013 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4014 eval ${pfx}libc_type=uclibc
4015 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4016 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4017 eval ${pfx}libc_type=glibc
4018 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4019 # MinGW headers can be installed on Cygwin, so check for newlib first.
4020 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4021 eval ${pfx}libc_type=newlib
4022 add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4023 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4024 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4025 eval ${pfx}libc_type=mingw64
4026 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4027 eval test \$${pfx_no_}cc_type = "gcc" &&
4028 add_${pfx}cppflags -D__printf__=__gnu_printf__
4029 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4030 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4031 eval ${pfx}libc_type=mingw32
4032 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4033 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4034 die "ERROR: MinGW32 runtime version must be >= 3.15."
4035 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4036 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4037 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4038 eval test \$${pfx_no_}cc_type = "gcc" &&
4039 add_${pfx}cppflags -D__printf__=__gnu_printf__
4040 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4041 eval ${pfx}libc_type=msvcrt
4042 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4043 if [ "$pfx" = host_ ]; then
4044 add_host_cppflags -Dsnprintf=_snprintf
4046 add_compat strtod.o strtod=avpriv_strtod
4047 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4048 _snprintf=avpriv_snprintf \
4049 vsnprintf=avpriv_vsnprintf
4052 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4053 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4054 # 0x601 by default unless something else is set by the user.
4055 # This can easily lead to us detecting functions only present
4056 # in such new versions and producing binaries requiring windows 7.0.
4057 # Therefore explicitly set the default to XP unless the user has
4058 # set something else on the command line.
4059 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4060 # family. For these cases, configure is free to use any functions
4061 # found in the SDK headers by default. (Alternatively, we could force
4062 # _WIN32_WINNT to 0x0602 in that case.)
4063 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4064 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4065 #ifdef WINAPI_FAMILY
4066 #include <winapifamily.h>
4067 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4072 if [ "$pfx" = "" ]; then
4073 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4075 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4076 eval ${pfx}libc_type=klibc
4077 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4078 eval ${pfx}libc_type=bionic
4079 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4080 eval ${pfx}libc_type=solaris
4081 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4083 eval ${pfx}libc_type=default
4084 add_${pfx}cppflags -D_DEFAULT_SOURCE
4089 test -n "$libc_type" && enable libc_$libc_type
4091 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4095 add_compat strtod.o strtod=avpriv_strtod
4099 # hacks for compiler/libc/os combinations
4101 if enabled_all tms470 libc_glibc; then
4102 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4103 add_cppflags -D__USER_LABEL_PREFIX__=
4104 add_cppflags -D__builtin_memset=memset
4105 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4106 add_cflags -pds=48 # incompatible redefinition of macro
4109 if enabled_all ccc libc_glibc; then
4110 add_ldflags -Wl,-z,now # calls to libots crash without this
4113 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4114 add_cppflags '-I\$(SRC_PATH)/compat/float'
4117 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4120 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4122 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4124 set_default $PATHS_LIST
4127 # we need to build at least one lib type
4128 if ! enabled_any static shared; then
4130 At least one library type must be built.
4131 Specify --enable-static to build the static libraries or --enable-shared to
4132 build the shared libraries as well. To only build the shared libraries specify
4133 --disable-static in addition to --enable-shared.
4138 disabled optimizations || check_cflags -fomit-frame-pointer
4141 disabled pic && return
4144 case "$target_os" in
4154 enabled pic && enable_weak_pic
4156 check_cc <<EOF || die "Symbol mangling check failed."
4159 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4160 extern_prefix=${sym%%ff_extern*}
4162 check_cc <<EOF && enable_weak inline_asm
4163 void foo(void) { __asm__ volatile ("" ::); }
4167 for restrict_keyword in restrict __restrict__ __restrict; do
4168 check_cc <<EOF && _restrict=$restrict_keyword && break
4169 void foo(char * $restrict_keyword p);
4173 check_cc <<EOF && enable pragma_deprecated
4174 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4177 check_cc <<EOF && enable attribute_packed
4178 struct { int x; } __attribute__((packed)) x;
4181 check_cc <<EOF && enable attribute_may_alias
4182 union { int x; } __attribute__((may_alias)) x;
4185 check_cc <<EOF || die "endian test failed"
4186 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4188 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4191 log "check_gas using '$as' as AS"
4192 # :vararg is used on aarch64, arm and ppc altivec
4193 check_as <<EOF || return 1
4194 .macro m n, y:vararg=0
4199 # .altmacro is only used in arm asm
4200 ! enabled arm || check_as <<EOF || return 1
4207 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4209 enabled_any arm aarch64 && nogas=die
4210 enabled_all ppc altivec && nogas=warn
4214 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4215 gcc) gaspp_as_type=gas ;;
4216 *) gaspp_as_type=$as_type ;;
4219 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4221 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4222 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4224 if ! check_gas ; then
4227 $nogas "GNU assembler not found, install/update gas-preprocessor"
4230 check_as <<EOF && enable as_func
4236 check_inline_asm inline_asm_labels '"1:\n"'
4238 if enabled aarch64; then
4239 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4240 # internal assembler in clang 3.3 does not support this instruction
4241 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4242 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4244 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4246 elif enabled alpha; then
4250 elif enabled arm; then
4252 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4253 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4254 enabled thumb && check_cflags -mthumb || check_cflags -marm
4256 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4258 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4260 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4261 case "${cross_prefix:-$cc}" in
4262 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4263 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4264 __asm__ (".eabi_attribute 28, 1");
4265 int main(void) { return 0; }
4268 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4271 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4272 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4273 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4274 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4275 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4276 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4278 [ $target_os = linux ] || [ $target_os = android ] ||
4279 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4282 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4284 check_as <<EOF && enable as_dn_directive
4288 check_as <<EOF && enable as_fpu_directive
4292 # llvm's integrated assembler supports .object_arch from llvm 3.5
4293 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4297 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4299 elif enabled mips; then
4301 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4303 # make sure that only an instruction set is enabled
4304 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4306 if enabled mips64; then
4307 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4308 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4309 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4311 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4312 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4313 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4316 elif enabled parisc; then
4318 if enabled gcc; then
4319 case $($cc -dumpversion) in
4320 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4324 elif enabled ppc; then
4326 enable local_aligned_8 local_aligned_16 local_aligned_32
4328 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4329 check_inline_asm ibm_asm '"add 0, 0, 0"'
4330 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4331 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4333 # AltiVec flags: The FSF version of GCC differs from the Apple version
4334 if enabled altivec; then
4335 check_cflags -maltivec -mabi=altivec &&
4336 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4337 check_cflags -faltivec
4339 # check if our compiler supports Motorola AltiVec C API
4340 check_cc <<EOF || disable altivec
4343 vector signed int v1 = (vector signed int) { 0 };
4344 vector signed int v2 = (vector signed int) { 1 };
4345 v1 = vec_add(v1, v2);
4350 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4353 if enabled vsx; then
4354 check_cflags -mvsx &&
4355 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4358 if enabled power8; then
4359 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4362 elif enabled x86; then
4364 check_builtin rdtsc intrin.h "__rdtsc()"
4365 check_builtin mm_empty mmintrin.h "_mm_empty()"
4367 enable local_aligned_8 local_aligned_16 local_aligned_32
4369 # check whether EBP is available on x86
4370 # As 'i' is stored on the stack, this program will crash
4371 # if the base pointer is used to access it because the
4372 # base pointer is cleared in the inline assembly code.
4373 check_exec_crash <<EOF && enable ebp_available
4375 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4379 # check whether EBX is available on x86
4380 check_inline_asm ebx_available '""::"b"(0)' &&
4381 check_inline_asm ebx_available '"":::"%ebx"'
4383 # check whether xmm clobbers are supported
4384 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4386 # check whether binutils is new enough to compile SSSE3/MMXEXT
4387 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4388 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4390 if ! disabled_any asm mmx yasm; then
4391 if check_cmd $yasmexe --version; then
4392 enabled x86_64 && yasm_extra="-m amd64"
4393 yasm_debug="-g dwarf2"
4394 elif check_cmd nasm -v; then
4396 yasm_debug="-g -F dwarf"
4397 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4400 YASMFLAGS="-f $objformat $yasm_extra"
4401 enabled pic && append YASMFLAGS "-DPIC"
4402 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4403 case "$objformat" in
4404 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4407 check_yasm "movbe ecx, [5]" && enable yasm ||
4408 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4409 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4410 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4411 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4412 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4413 check_yasm "CPU amdnop" || disable cpunop
4417 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4424 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4426 check_ldflags -Wl,--as-needed
4428 if check_func dlopen; then
4430 elif check_func dlopen -ldl; then
4434 if ! disabled network; then
4435 check_func getaddrinfo $network_extralibs
4436 check_func inet_aton $network_extralibs
4438 check_type netdb.h "struct addrinfo"
4439 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4440 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4441 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4442 check_type poll.h "struct pollfd"
4443 check_type netinet/sctp.h "struct sctp_event_subscribe"
4444 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4445 check_type netinet/in.h "struct sockaddr_in6"
4446 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4447 check_type "sys/types.h sys/socket.h" socklen_t
4449 # Prefer arpa/inet.h over winsock2
4450 if check_header arpa/inet.h ; then
4451 check_func closesocket
4452 elif check_header winsock2.h ; then
4453 check_func_headers winsock2.h closesocket -lws2 &&
4454 network_extralibs="-lws2" ||
4455 { check_func_headers winsock2.h closesocket -lws2_32 &&
4456 network_extralibs="-lws2_32"; } || disable winsock2_h network
4457 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4459 check_type ws2tcpip.h socklen_t
4460 check_type ws2tcpip.h "struct addrinfo"
4461 check_type ws2tcpip.h "struct group_source_req"
4462 check_type ws2tcpip.h "struct ip_mreq_source"
4463 check_type ws2tcpip.h "struct ipv6_mreq"
4464 check_type winsock2.h "struct pollfd"
4465 check_struct winsock2.h "struct sockaddr" sa_len
4466 check_type ws2tcpip.h "struct sockaddr_in6"
4467 check_type ws2tcpip.h "struct sockaddr_storage"
4473 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4474 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4475 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4476 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4478 case "$custom_allocator" in
4480 # jemalloc by default does not use a prefix
4481 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4484 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4489 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4490 check_func ${malloc_prefix}memalign && enable memalign
4491 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4493 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4494 check_func_headers time.h clock_gettime ||
4495 { check_lib time.h clock_gettime -lrt && LIBRT="-lrt"; }
4499 check_func gethrtime
4501 check_func getrusage
4502 check_func gettimeofday
4505 check_func localtime_r
4506 check_func mach_absolute_time
4510 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4511 check_func_headers time.h nanosleep || check_lib time.h nanosleep -lrt
4512 check_func sched_getaffinity
4513 check_func setrlimit
4514 check_func strerror_r
4519 check_func_headers io.h setmode
4520 check_func_headers stdlib.h getenv
4522 check_func_headers windows.h GetProcessAffinityMask
4523 check_func_headers windows.h GetProcessTimes
4524 check_func_headers windows.h GetSystemTimeAsFileTime
4525 check_func_headers windows.h LoadLibrary
4526 check_func_headers windows.h MapViewOfFile
4527 check_func_headers windows.h SetConsoleTextAttribute
4528 check_func_headers windows.h Sleep
4529 check_func_headers windows.h VirtualAlloc
4530 check_struct windows.h "CONDITION_VARIABLE" Ptr
4532 check_header d3d11.h
4533 check_header direct.h
4534 check_header dlfcn.h
4536 check_header dxva2api.h
4538 check_header mach/mach_time.h
4539 check_header malloc.h
4541 check_header sys/mman.h
4542 check_header sys/param.h
4543 check_header sys/resource.h
4544 check_header sys/select.h
4545 check_header sys/time.h
4546 check_header sys/un.h
4547 check_header unistd.h
4548 check_header valgrind/valgrind.h
4549 check_header VideoDecodeAcceleration/VDADecoder.h
4550 check_header windows.h
4551 check_header X11/extensions/XvMClib.h
4553 # it seems there are versions of clang in some distros that try to use the
4554 # gcc headers, which explodes for stdatomic
4555 # so we also check that atomics actually work here
4556 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4558 check_lib "windows.h shellapi.h" CommandLineToArgvW -lshell32
4559 check_lib "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4560 check_lib "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4562 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4564 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4565 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4566 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4568 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4569 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4570 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4571 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4572 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4574 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4576 if ! disabled w32threads && ! enabled pthreads; then
4577 check_func_headers "windows.h process.h" _beginthreadex &&
4578 enable w32threads || disable w32threads
4581 # check for some common methods of building with pthread support
4582 # do this before the optional library checks as some of them require pthreads
4583 if ! disabled pthreads && ! enabled w32threads; then
4585 if check_lib pthread.h pthread_join -pthread; then
4587 elif check_lib pthread.h pthread_join -pthreads; then
4588 add_cflags -pthreads
4589 elif check_lib pthread.h pthread_join -lpthreadGC2; then
4591 elif check_lib pthread.h pthread_join -lpthread; then
4593 elif ! check_func pthread_join; then
4599 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
4601 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4602 disabled bzlib || check_lib bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4604 check_lib math.h sin -lm && LIBM="-lm"
4610 for func in $MATH_FUNCS; do
4611 eval check_mathfunc $func \${${func}_args:-1} $LIBM
4614 # these are off by default, so fail if requested and not available
4615 enabled avisynth && { check_header avisynth/avisynth_c.h || die "ERROR: avisynth/avisynth_c.h header not found"; }
4616 enabled avxsynth && require avxsynth "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl
4617 enabled cuda && require cuda cuda.h cuInit -lcuda
4618 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4619 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4620 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4621 enabled libdc1394 && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
4622 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4623 enabled libfaac && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4624 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4625 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4626 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4627 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4628 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4629 done || die "ERROR: libgsm not found"; }
4630 enabled libhdcd && require_pkg_config libhdcd "hdcd/hdcd_simple.h" hdcd_new
4631 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4632 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4633 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4634 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4635 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4636 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4637 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4638 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4639 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4640 enabled libopenjpeg && { check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4641 require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4642 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4643 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4644 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4645 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4646 enabled libsnappy && require libsnappy snappy-c.h snappy_compress -lsnappy
4647 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4648 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4649 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4650 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4651 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4652 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4653 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4654 enabled libvpx_vp8_decoder && {
4655 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4656 disable libvpx_vp8_decoder;
4658 enabled libvpx_vp8_encoder && {
4659 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4660 disable libvpx_vp8_encoder;
4662 enabled libvpx_vp9_decoder && {
4663 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4664 disable libvpx_vp9_decoder;
4666 enabled libvpx_vp9_encoder && {
4667 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4668 disable libvpx_vp9_encoder;
4670 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4671 die "libvpx enabled but no supported decoders found"
4674 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4675 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4676 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4677 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4678 die "ERROR: libx264 version must be >= 0.118."; } &&
4679 { check_cpp_condition x264.h "X264_MPEG2" &&
4681 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4682 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4683 die "ERROR: libx265 version must be >= 57."; }
4684 enabled libxavs && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4685 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4686 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4687 { ! enabled cross_compile &&
4688 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4689 add_ldflags -L/opt/vc/lib/ &&
4690 check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4691 die "ERROR: mmal not found" &&
4692 check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4693 enabled omx_rpi && { check_header OMX_Core.h ||
4694 { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
4695 die "ERROR: OpenMAX IL headers not found"; }
4696 enabled omx && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }
4697 enabled openssl && { { check_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||
4698 check_pkg_config openssl openssl/ssl.h SSL_library_init; } && {
4699 add_cflags $openssl_cflags && add_extralibs $openssl_extralibs; } ||
4700 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4701 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4702 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4703 die "ERROR: openssl not found"; }
4705 enabled gnutls && check_lib gmp.h mpz_export -lgmp && enable gmp
4707 if enabled nvenc; then
4708 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."
4709 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
4710 die "ERROR: NVENC API version 5 or older is not supported"
4713 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4714 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4715 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4719 ! disabled pod2man && check_cmd pod2man --help && enable pod2man || disable pod2man
4720 ! disabled texi2html && check_cmd texi2html -version && enable texi2html || disable texi2html
4722 check_header linux/fb.h
4723 check_header linux/videodev2.h
4724 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4726 check_header AVFoundation/AVFoundation.h
4728 check_header sys/videoio.h
4730 check_lib "windows.h winuser.h" GetShellWindow -luser32
4731 check_lib "windows.h vfw.h" capCreateCaptureWindow -lvfw32
4732 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4733 # w32api 3.12 had it defined wrong
4734 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4736 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4737 { check_header dev/bktr/ioctl_meteor.h &&
4738 check_header dev/bktr/ioctl_bt848.h; } ||
4739 { check_header machine/ioctl_meteor.h &&
4740 check_header machine/ioctl_bt848.h; } ||
4741 { check_header dev/video/meteor/ioctl_meteor.h &&
4742 check_header dev/video/bktr/ioctl_bt848.h; } ||
4743 check_header dev/ic/bt8xx.h
4745 check_header sys/soundcard.h
4746 check_header soundcard.h
4748 enabled_any alsa_indev alsa_outdev &&
4749 check_lib alsa/asoundlib.h snd_pcm_htimestamp -lasound
4751 enabled jack_indev && check_lib jack/jack.h jack_client_open -ljack &&
4752 check_func jack_port_get_latency_range -ljack
4754 enabled_any sndio_indev sndio_outdev && check_lib sndio.h sio_open -lsndio
4756 if enabled libcdio; then
4757 check_lib "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4758 check_lib "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4759 die "ERROR: No usable libcdio/cdparanoia found"
4762 if enabled libxcb; then
4763 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4764 enabled libxcb && die "ERROR: libxcb not found";
4767 disabled libxcb_shm ||
4768 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4769 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4770 } && check_header sys/shm.h && enable libxcb_shm
4772 disabled libxcb_xfixes ||
4773 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4774 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4775 } && enable libxcb_xfixes
4777 add_cflags "$xcb_shape_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4778 add_extralibs "$xcb_shape_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs"
4782 check_lib windows.h CoTaskMemFree -lole32 &&
4785 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4788 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4792 check_lib "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
4796 check_lib "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11 &&
4800 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4804 check_lib "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11 &&
4807 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4809 # add some useful compiler flags if supported
4810 check_cflags -Wdeclaration-after-statement
4812 check_cflags -Wdisabled-optimization
4813 check_cflags -Wpointer-arith
4814 check_cflags -Wredundant-decls
4815 check_cflags -Wwrite-strings
4816 check_cflags -Wtype-limits
4817 check_cflags -Wundef
4818 check_cflags -Wmissing-prototypes
4819 check_cflags -Wstrict-prototypes
4821 if enabled extra_warnings; then
4822 check_cflags -Wcast-qual
4823 check_cflags -Wextra
4824 check_cflags -Wpedantic
4827 check_disable_warning(){
4828 warning_flag=-W${1#-Wno-}
4829 test_cflags $warning_flag && add_cflags $1
4832 check_disable_warning -Wno-parentheses
4833 check_disable_warning -Wno-switch
4834 check_disable_warning -Wno-format-zero-length
4835 check_disable_warning -Wno-pointer-sign
4837 check_disable_warning_headers(){
4838 warning_flag=-W${1#-Wno-}
4839 test_cflags $warning_flag && add_cflags_headers $1
4842 check_disable_warning_headers -Wno-deprecated-declarations
4843 check_disable_warning_headers -Wno-unused-variable
4845 check_objcflags -fobjc-arc && enable objc_arc
4847 # add some linker flags
4848 check_ldflags -Wl,--warn-common
4849 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4850 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4851 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4853 # add some strip flags
4854 # -wN '..@*' is more selective than -x, but not available everywhere.
4855 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4857 enabled neon_clobber_test &&
4858 check_ldflags -Wl,--wrap,avcodec_open2 \
4859 -Wl,--wrap,avcodec_decode_audio4 \
4860 -Wl,--wrap,avcodec_decode_video2 \
4861 -Wl,--wrap,avcodec_decode_subtitle2 \
4862 -Wl,--wrap,avcodec_encode_audio2 \
4863 -Wl,--wrap,avcodec_encode_video2 \
4864 -Wl,--wrap,avcodec_encode_subtitle \
4865 -Wl,--wrap,avcodec_send_packet \
4866 -Wl,--wrap,avcodec_receive_packet \
4867 -Wl,--wrap,avcodec_send_frame \
4868 -Wl,--wrap,avcodec_receive_frame \
4869 -Wl,--wrap,avresample_convert ||
4870 disable neon_clobber_test
4872 enabled xmm_clobber_test &&
4873 check_ldflags -Wl,--wrap,avcodec_open2 \
4874 -Wl,--wrap,avcodec_decode_audio4 \
4875 -Wl,--wrap,avcodec_decode_video2 \
4876 -Wl,--wrap,avcodec_decode_subtitle2 \
4877 -Wl,--wrap,avcodec_encode_audio2 \
4878 -Wl,--wrap,avcodec_encode_video2 \
4879 -Wl,--wrap,avcodec_encode_subtitle \
4880 -Wl,--wrap,avcodec_send_packet \
4881 -Wl,--wrap,avcodec_receive_packet \
4882 -Wl,--wrap,avcodec_send_frame \
4883 -Wl,--wrap,avcodec_receive_frame \
4884 -Wl,--wrap,avresample_convert \
4885 -Wl,--wrap,sws_scale ||
4886 disable xmm_clobber_test
4888 check_ld <<EOF && enable proper_dce
4889 extern const int array[512];
4890 static inline int func(void) { return array[0]; }
4891 int main(void) { return 0; }
4894 if enabled proper_dce; then
4895 echo "X { local: *; };" > $TMPV
4896 if test_ldflags -Wl,${version_script},$TMPV; then
4897 append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
4898 check_cc <<EOF && enable symver_asm_label
4899 void ff_foo(void) __asm__ ("av_foo@VERSION");
4900 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4902 check_cc <<EOF && enable symver_gnu_asm
4903 __asm__(".symver ff_foo,av_foo@VERSION");
4904 void ff_foo(void) {}
4909 if [ -z "$optflags" ]; then
4910 if enabled small; then
4911 optflags=$cflags_size
4912 elif enabled optimizations; then
4913 optflags=$cflags_speed
4915 optflags=$cflags_noopt
4921 enabled lto && check_ldflags "$@"
4925 if enabled lto; then
4926 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4928 check_ldflags -flto $cpuflags
4931 check_optflags $optflags
4932 check_optflags -fno-math-errno
4933 check_optflags -fno-signed-zeros
4935 if enabled icc; then
4936 # Just warnings, no remarks
4938 # -wd: Disable following warnings
4939 # 144, 167, 556: -Wno-pointer-sign
4940 # 1292: attribute "foo" ignored
4941 # 1419: external declaration in primary source file
4942 # 10006: ignoring unknown option -fno-signed-zeros
4943 # 10148: ignoring unknown option -Wno-parentheses
4944 # 10156: ignoring option '-W'; no argument required
4945 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4946 # 11030: Warning unknown option --as-needed
4947 # 10156: ignoring option '-export'; no argument required
4948 check_ldflags -wd10156,11030
4949 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4950 enable ebp_available
4951 if enabled x86_32; then
4952 icc_version=$($cc -dumpversion)
4953 test ${icc_version%%.*} -ge 11 &&
4954 check_cflags -falign-stack=maintain-16-byte ||
4955 disable aligned_stack
4957 elif enabled ccc; then
4958 # disable some annoying warnings
4959 add_cflags -msg_disable bitnotint
4960 add_cflags -msg_disable mixfuncvoid
4961 add_cflags -msg_disable nonstandcast
4962 add_cflags -msg_disable unsupieee
4963 elif enabled gcc; then
4964 check_optflags -fno-tree-vectorize
4965 check_cflags -Werror=implicit-function-declaration
4966 check_cflags -Werror=missing-prototypes
4967 check_cflags -Werror=return-type
4968 check_cflags -Werror=declaration-after-statement
4969 check_cflags -Werror=vla
4970 check_cflags -Werror=format-security
4971 check_cflags -fdiagnostics-color=auto
4972 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4973 elif enabled llvm_gcc; then
4974 check_cflags -mllvm -stack-alignment=16
4975 elif enabled clang; then
4976 check_cflags -mllvm -stack-alignment=16
4977 check_cflags -Qunused-arguments
4978 check_cflags -Werror=implicit-function-declaration
4979 check_cflags -Werror=missing-prototypes
4980 check_cflags -Werror=return-type
4981 elif enabled cparser; then
4982 add_cflags -Wno-missing-variable-declarations
4983 add_cflags -Wno-empty-statement
4984 elif enabled armcc; then
4985 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4986 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4987 # 2523: use of inline assembly is deprecated
4988 add_cflags -W${armcc_opt},--diag_suppress=2523
4989 add_cflags -W${armcc_opt},--diag_suppress=1207
4990 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4991 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4992 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4993 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4994 elif enabled tms470; then
4995 add_cflags -pds=824 -pds=837
4997 elif enabled pathscale; then
4998 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4999 elif enabled_any msvc icl; then
5000 enabled x86_32 && disable aligned_stack
5001 enabled_all x86_32 debug && add_cflags -Oy-
5002 enabled debug && add_ldflags -debug
5003 enable pragma_deprecated
5004 if enabled icl; then
5005 # -Qansi-alias is basically -fstrict-aliasing, but does not work
5006 # (correctly) on icl 13.x.
5007 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5008 add_cflags -Qansi-alias
5009 # icl will pass the inline asm tests but inline asm is currently
5010 # not supported (build will fail)
5013 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5014 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5015 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5016 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5017 # (as it ends up if the restrict redefine is done before including stdlib.h), while
5018 # MSVC 2013 and newer can handle it fine.
5019 # If this declspec fails, force including stdlib.h before the restrict redefinition
5020 # happens in config.h.
5021 if [ $_restrict != restrict ]; then
5022 check_cc <<EOF || add_cflags -FIstdlib.h
5023 __declspec($_restrict) void* foo(int);
5028 for pfx in "" host_; do
5029 varname=${pfx%_}cc_type
5030 eval "type=\$$varname"
5031 if [ $type = "msvc" ]; then
5032 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5033 static inline int foo(int a) { return a; }
5040 add_asflags -Qunused-arguments
5046 check_ldflags -Qunused-arguments
5052 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5056 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5058 check_deps $CONFIG_LIST \
5063 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5065 for thread in $THREADS_LIST; do
5066 if enabled $thread; then
5067 test -n "$thread_type" &&
5068 die "ERROR: Only one thread type must be selected." ||
5069 thread_type="$thread"
5073 if disabled stdatomic_h; then
5074 if enabled atomics_gcc; then
5075 add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
5076 elif enabled atomics_win32; then
5077 add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
5078 elif enabled atomics_suncc; then
5079 add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
5080 elif enabled pthreads; then
5081 add_compat atomics/pthread/stdatomic.o
5082 add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
5084 enabled threads && die "Threading is enabled, but no atomics are available"
5085 add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
5089 enabled zlib && add_cppflags -DZLIB_CONST
5091 # conditional library dependencies, in linking order
5092 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5093 enabled_any asyncts_filter resample_filter &&
5094 prepend avfilter_deps "avresample"
5095 enabled scale_filter && prepend avfilter_deps "swscale"
5097 enabled opus_decoder && prepend avcodec_deps "avresample"
5101 eval "deps=\$$lib_deps"
5102 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5106 map 'expand_deps $v' $LIBRARY_LIST
5108 if test "$quiet" != "yes"; then
5110 echo "install prefix $prefix"
5111 echo "source path $source_path"
5112 echo "C compiler $cc"
5113 echo "C library $libc_type"
5114 if test "$host_cc" != "$cc"; then
5115 echo "host C compiler $host_cc"
5116 echo "host C library $host_libc_type"
5118 echo "ARCH $arch ($cpu)"
5119 if test "$extra_version" != ""; then
5120 echo "version string suffix $extra_version"
5122 echo "big-endian ${bigendian-no}"
5123 echo "runtime cpu detection ${runtime_cpudetect-no}"
5124 if enabled x86; then
5125 echo "${yasmexe} ${yasm-no}"
5126 echo "MMX enabled ${mmx-no}"
5127 echo "MMXEXT enabled ${mmxext-no}"
5128 echo "3DNow! enabled ${amd3dnow-no}"
5129 echo "3DNow! extended enabled ${amd3dnowext-no}"
5130 echo "SSE enabled ${sse-no}"
5131 echo "SSSE3 enabled ${ssse3-no}"
5132 echo "AVX enabled ${avx-no}"
5133 echo "XOP enabled ${xop-no}"
5134 echo "FMA3 enabled ${fma3-no}"
5135 echo "FMA4 enabled ${fma4-no}"
5136 echo "i686 features enabled ${i686-no}"
5137 echo "CMOV is fast ${fast_cmov-no}"
5138 echo "EBX available ${ebx_available-no}"
5139 echo "EBP available ${ebp_available-no}"
5141 if enabled aarch64; then
5142 echo "NEON enabled ${neon-no}"
5143 echo "VFP enabled ${vfp-no}"
5145 if enabled arm; then
5146 echo "ARMv5TE enabled ${armv5te-no}"
5147 echo "ARMv6 enabled ${armv6-no}"
5148 echo "ARMv6T2 enabled ${armv6t2-no}"
5149 echo "VFP enabled ${vfp-no}"
5150 echo "NEON enabled ${neon-no}"
5152 if enabled ppc; then
5153 echo "AltiVec enabled ${altivec-no}"
5154 echo "VSX enabled ${vsx-no}"
5155 echo "POWER8 enabled ${power8-no}"
5156 echo "PPC 4xx optimizations ${ppc4xx-no}"
5157 echo "dcbzl available ${dcbzl-no}"
5159 echo "debug symbols ${debug-no}"
5160 echo "optimize for size ${small-no}"
5161 echo "optimizations ${optimizations-no}"
5162 echo "static ${static-no}"
5163 echo "shared ${shared-no}"
5164 echo "network support ${network-no}"
5165 echo "threading support ${thread_type-no}"
5166 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5167 test -n "$random_seed" &&
5168 echo "random seed ${random_seed}"
5171 echo "External libraries:"
5172 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5174 echo "External libraries providing hardware acceleration:"
5175 print_enabled '' $HWACCEL_LIBRARY_LIST | print_3_columns
5179 print_enabled '' $LIBRARY_LIST | print_3_columns
5183 print_enabled '' $PROGRAM_LIST | print_3_columns
5186 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5187 echo "Enabled ${type}s:"
5188 eval list=\$$(toupper $type)_LIST
5189 print_enabled '_*' $list | print_3_columns
5193 license="LGPL version 2.1 or later"
5194 if enabled nonfree; then
5195 license="nonfree and unredistributable"
5196 elif enabled gplv3; then
5197 license="GPL version 3 or later"
5198 elif enabled lgplv3; then
5199 license="LGPL version 3 or later"
5200 elif enabled gpl; then
5201 license="GPL version 2 or later"
5204 echo "License: $license"
5206 echo "Creating configuration files ..."
5208 fi # test "$quiet" != "yes"
5210 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5212 config_files="$TMPH config.mak"
5214 cat > config.mak <<EOF
5215 # Automatically generated by configure - do not modify!
5216 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5218 LIBDIR=\$(DESTDIR)$libdir
5219 SHLIBDIR=\$(DESTDIR)$shlibdir
5220 INCDIR=\$(DESTDIR)$incdir
5221 BINDIR=\$(DESTDIR)$bindir
5222 DATADIR=\$(DESTDIR)$datadir
5223 DOCDIR=\$(DESTDIR)$docdir
5224 MANDIR=\$(DESTDIR)$mandir
5225 SRC_PATH=$source_path
5228 INTRINSICS=$intrinsics
5235 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5237 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5248 OBJCFLAGS=$OBJCFLAGS
5263 LDEXEFLAGS=$LDEXEFLAGS
5264 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5265 STRIPFLAGS=$STRIPFLAGS
5266 YASMFLAGS=$YASMFLAGS
5273 EXTRA_VERSION=$extra_version
5275 CCDEP_FLAGS=$CCDEP_FLAGS
5277 ASDEP_FLAGS=$ASDEP_FLAGS
5278 CC_DEPFLAGS=$CC_DEPFLAGS
5279 AS_DEPFLAGS=$AS_DEPFLAGS
5282 HOSTCFLAGS=$host_cflags
5283 HOSTCPPFLAGS=$host_cppflags
5284 HOSTEXESUF=$HOSTEXESUF
5285 HOSTLDFLAGS=$host_ldflags
5286 HOSTEXTRALIBS=$host_extralibs
5288 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5289 HOSTCCDEP=$HOSTCCDEP
5290 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5291 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5295 TARGET_EXEC=$target_exec $target_exec_args
5296 TARGET_PATH=$target_path
5297 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5298 CFLAGS-avplay=$sdl_cflags
5299 CFLAGS_HEADERS=$CFLAGS_HEADERS
5300 ZLIB=$($ldflags_filter -lz)
5301 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5302 EXTRALIBS=$extralibs
5303 COMPAT_OBJS=$compat_objs
5305 LIBTARGET=${LIBTARGET}
5306 SLIBNAME=${SLIBNAME}
5307 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5308 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5309 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5310 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5311 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5312 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5313 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5314 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5315 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
5316 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5321 name=$(toupper $lcname)
5322 file=$source_path/$lcname/version.h
5323 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5324 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5325 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5326 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5327 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5330 map 'get_version $v' $LIBRARY_LIST
5332 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5334 print_program_extralibs(){
5335 eval "program_extralibs=\$${1}_extralibs"
5336 eval echo "EXTRALIBS-${1}=${program_extralibs}" >> config.mak
5339 map 'print_program_extralibs $v' $PROGRAM_LIST
5342 /* Automatically generated by configure - do not modify! */
5343 #ifndef LIBAV_CONFIG_H
5344 #define LIBAV_CONFIG_H
5345 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5346 #define LIBAV_LICENSE "$(c_escape $license)"
5347 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5348 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5349 #define restrict $_restrict
5350 #define EXTERN_PREFIX "${extern_prefix}"
5351 #define EXTERN_ASM ${extern_prefix}
5352 #define SLIBSUF "$SLIBSUF"
5355 test -n "$malloc_prefix" &&
5356 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5358 if enabled yasm; then
5359 append config_files $TMPASM
5363 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5365 print_config ARCH_ "$config_files" $ARCH_LIST
5366 print_config HAVE_ "$config_files" $HAVE_LIST
5367 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5371 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5373 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5374 cp_if_changed $TMPH config.h
5377 enabled yasm && cp_if_changed $TMPASM config.asm
5380 /* Generated by ffconf */
5381 #ifndef AVUTIL_AVCONFIG_H
5382 #define AVUTIL_AVCONFIG_H
5385 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5387 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5389 cp_if_changed $TMPH libavutil/avconfig.h
5391 # generate the lists of enabled components
5392 print_enabled_components(){
5397 echo "static const $struct_name *$name[] = {" > $TMPH
5399 enabled $c && printf " &ff_%s,\n" $c >> $TMPH
5401 echo " NULL };" >> $TMPH
5402 cp_if_changed $TMPH $file
5405 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5406 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5408 test -n "$WARNINGS" && printf "\n$WARNINGS"
5410 # build pkg-config files
5413 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5416 pkgconfig_generate(){
5418 shortname=${name#lib}
5422 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5423 requires=${requires%, }
5424 enabled ${name#lib} || return 0
5426 cat <<EOF > $name/$name.pc
5428 exec_prefix=\${prefix}
5433 Description: $comment
5435 Requires: $(enabled shared || echo $requires)
5436 Requires.private: $(enabled shared && echo $requires)
5438 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5439 Libs.private: $(enabled shared && echo $libs)
5440 Cflags: -I\${includedir}
5442 cat <<EOF > $name/$name-uninstalled.pc
5445 libdir=\${pcfiledir}
5446 includedir=${source_path}
5449 Description: $comment
5453 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5454 Cflags: -I\${includedir}
5458 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5459 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5460 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5461 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5462 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5463 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5464 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"