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-bzlib bzip2 compression [autodetect]
192 --enable-frei0r video filtering plugins
193 --enable-gnutls crypto
194 --enable-libbs2b Bauer stereophonic-to-binaural DSP
195 --enable-libcdio audio CD input
196 --enable-libdc1394 IEEE 1394/Firewire camera input
197 --enable-libdcadec DCA audio decoding
198 --enable-libfaac AAC audio encoding
199 --enable-libfdk-aac AAC audio encoding/decoding
200 --enable-libfontconfig font configuration and management
201 --enable-libfreetype font rendering
202 --enable-libgsm GSM audio encoding/decoding
203 --enable-libhdcd HDCD decoding filter
204 --enable-libilbc ILBC audio encoding/decoding
205 --enable-libkvazaar HEVC video encoding
206 --enable-libmp3lame MP3 audio encoding
207 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
208 --enable-libopencore-amrwb AMR-WB audio decoding
209 --enable-libopencv computer vision
210 --enable-libopenh264 H.264 video encoding/decoding
211 --enable-libopenjpeg JPEG 2000 image encoding/decoding
212 --enable-libopus Opus audio encoding/decoding
213 --enable-libpulse Pulseaudio sound server
214 --enable-librtmp RTMP streaming
215 --enable-libschroedinger Dirac video encoding/decoding
216 --enable-libsnappy snappy compression
217 --enable-libspeex Speex audio encoding/decoding
218 --enable-libtheora Theora video encoding/decoding
219 --enable-libtwolame MP2 audio encoding
220 --enable-libvo-aacenc AAC audio encoding
221 --enable-libvo-amrwbenc AMR-WB audio encoding
222 --enable-libvorbis Vorbis audio encoding/decoding
223 --enable-libvpx VP* video encoding/decoding
224 --enable-libwavpack Wavpack audio encoding/decoding
225 --enable-libwebp WebP image encoding/decoding
226 --enable-libx264 H.264 video encoding
227 --enable-libx265 HEVC video encoding
228 --enable-libxavs Chinese AVS video encoding
229 --enable-libxcb X window system protocol communication
230 --enable-libxcb-shm X11 shm communication [auto]
231 --enable-libxcb-xfixes X11 mouse rendering [auto]
232 --enable-libxvid MPEG-4 ASP video encoding
233 --enable-openssl crypto
234 --enable-zlib compression [autodetect]
236 The following libraries provide various hardware acceleration features:
237 --enable-cuda Nvidia CUDA (dynamically linked)
238 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
239 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
240 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
241 --enable-libnpp Nvidia CUDA processing
242 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
243 --enable-nvenc Nvidia video encoding
244 --enable-omx OpenMAX IL
245 --enable-omx-rpi OpenMAX IL for Raspberry Pi
246 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
247 --enable-vda Apple Video Decode Acceleration [auto]
248 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
251 --arch=ARCH select architecture [$arch]
252 --cpu=CPU select the minimum required CPU (affects
253 instruction selection, may crash on older CPUs)
254 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
255 --enable-cross-compile assume a cross-compiler is used
256 --sysroot=PATH root of cross-build tree
257 --sysinclude=PATH location of cross-build system headers
258 --target-os=OS compiler targets OS [$target_os]
259 --target-exec=CMD command to run executables on target
260 --target-path=DIR path to view of build directory on target
261 --target-samples=DIR path to samples directory on target
262 --toolchain=NAME set tool defaults according to NAME
264 --ar=AR use archive tool AR [$ar_default]
265 --as=AS use assembler AS [$as_default]
266 --cc=CC use C compiler CC [$cc_default]
267 --objcc=OCC use ObjC compiler OCC [$cc_default]
268 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
269 --ld=LD use linker LD
270 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
271 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
272 --host-cc=HOSTCC use host C compiler HOSTCC
273 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
274 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
275 --host-ld=HOSTLD use host linker HOSTLD
276 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
277 --host-libs=HLIBS use libs HLIBS when linking for host
278 --host-os=OS compiler host OS [$target_os]
279 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
280 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
281 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
282 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
283 --extra-libs=ELIBS add ELIBS [$ELIBS]
284 --extra-version=STRING version string suffix []
285 --optflags=OPTFLAGS override optimization-related compiler flags
286 --enable-pic build position-independent code
287 --enable-thumb compile for Thumb instruction set
288 --enable-lto use link-time optimization
289 --env="ENV=override" override the environment variables
291 Advanced options (experts only):
292 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
293 --custom-allocator=NAME use a supported custom allocator
294 --disable-symver disable symbol versioning
295 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
296 --disable-safe-bitstream-reader
297 disable buffer boundary checking in bitreaders
298 (faster, but may crash)
299 --enable-sram allow use of on-chip SRAM
301 Optimization options (experts only):
302 --disable-asm disable all assembly optimizations
303 --disable-altivec disable AltiVec optimizations
304 --disable-vsx disable VSX optimizations
305 --disable-power8 disable POWER8 optimizations
306 --disable-amd3dnow disable 3DNow! optimizations
307 --disable-amd3dnowext disable 3DNow! extended optimizations
308 --disable-mmx disable MMX optimizations
309 --disable-mmxext disable MMXEXT optimizations
310 --disable-sse disable SSE optimizations
311 --disable-sse2 disable SSE2 optimizations
312 --disable-sse3 disable SSE3 optimizations
313 --disable-ssse3 disable SSSE3 optimizations
314 --disable-sse4 disable SSE4 optimizations
315 --disable-sse42 disable SSE4.2 optimizations
316 --disable-avx disable AVX optimizations
317 --disable-xop disable XOP optimizations
318 --disable-fma3 disable FMA3 optimizations
319 --disable-fma4 disable FMA4 optimizations
320 --disable-avx2 disable AVX2 optimizations
321 --disable-armv5te disable armv5te optimizations
322 --disable-armv6 disable armv6 optimizations
323 --disable-armv6t2 disable armv6t2 optimizations
324 --disable-vfp disable VFP optimizations
325 --disable-neon disable NEON optimizations
326 --disable-inline-asm disable use of inline assembly
327 --disable-yasm disable use of nasm/yasm assembly
329 Developer options (useful when working on Libav itself):
330 --disable-debug disable debugging symbols
331 --enable-debug=LEVEL set the debug level [$debuglevel]
332 --disable-optimizations disable compiler optimizations
333 --enable-extra-warnings enable more compiler warnings
334 --samples=PATH location of test samples for FATE, if not set use
335 \$LIBAV_SAMPLES at make invocation time.
336 --enable-neon-clobber-test check NEON registers for clobbering (should be
337 used only for debugging purposes)
338 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339 should be used only for debugging purposes)
340 --enable-random randomly enable/disable components
342 --enable-random=LIST randomly enable/disable specific components or
343 --disable-random=LIST component groups. LIST is a comma-separated list
344 of NAME[:PROB] entries where NAME is a component
345 (group) and PROB the probability associated with
347 --random-seed=VALUE seed value for --enable/disable-random
348 --disable-valgrind-backtrace do not print a backtrace under Valgrind
349 (only applies to --disable-optimizations builds)
351 NOTE: Object files are built at the place where configure is launched.
359 echo "$@" >> $logfile
366 printf '%5s %s\n' "${i}" "${line}"
368 done < $1 >> $logfile
379 WARNINGS="${WARNINGS}WARNING: $*\n"
386 If you think configure made a mistake, make sure you are using the latest
387 version from Git. If the latest version fails, report the problem to the
388 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
390 if disabled logging; then
392 Rerun configure with logging enabled (do not use --disable-logging), and
393 include the log this produces with your report.
397 Include the log file "$logfile" produced by configure as this will help
404 # Avoid locale weirdness, besides we really just want to translate ASCII.
406 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
410 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
414 echo "$*" | sed 's/["\\]/\\\0/g'
418 v=$(echo "$1" | sed "s/'/'\\\\''/g")
419 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
424 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
431 eval "case $v in $pat) printf '%s ' $v ;; esac"
439 eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
446 for v; do eval $m; done
452 for v; do echo ${v}${suffix}; done
467 eval : \${$var:=$value}
472 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
478 eval $(sanitize_var_name "$var")='$*'
482 eval echo \$$(sanitize_var_name "$1")
487 eval level=\${${pvar}_level:=0}
488 eval ${pvar}_${level}="\$$pvar"
489 eval ${pvar}_level=$(($level+1))
495 eval level=\${${pvar}_level:-0}
496 test $level = 0 && continue
497 eval level=$(($level-1))
498 eval $pvar="\${${pvar}_${level}}"
499 eval ${pvar}_level=$level
500 eval unset ${pvar}_${level}
522 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
528 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
534 enabled $var && continue
535 eval sel="\$${var}_select"
536 eval sgs="\$${var}_suggest"
540 enable_deep_weak $sgs
552 disabled $var && continue
561 test "${1#!}" = "$1" && op== || op=!=
562 eval test "x\$${1#!}" $op "xyes"
566 test "${1#!}" = "$1" && op== || op=!=
567 eval test "x\$${1#!}" $op "xno"
572 enabled $opt || return 1
578 disabled $opt || return 1
584 enabled $opt && return 0
590 disabled $opt && return 0
597 eval : \${$opt:=\$${opt}_default}
605 [ $var = $value ] && return 0
613 enabled ${cfg}_checking && die "Circular dependency for $cfg."
614 disabled ${cfg}_checking && continue
615 enable ${cfg}_checking
618 eval dep_all="\$${cfg}_deps"
619 eval dep_any="\$${cfg}_deps_any"
620 eval dep_sel="\$${cfg}_select"
621 eval dep_sgs="\$${cfg}_suggest"
622 eval dep_ifa="\$${cfg}_if"
623 eval dep_ifn="\$${cfg}_if_any"
625 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
626 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
627 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
629 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
630 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
631 enabled_all $dep_all || disable $cfg
632 enabled_any $dep_any || disable $cfg
633 disabled_any $dep_sel && disable $cfg
635 if enabled $cfg; then
637 enable_deep_weak $dep_sgs
640 disable ${cfg}_checking
649 for cfg in $allopts; do
650 enabled $cfg || continue
651 eval dep_extralibs="\$${cfg}_extralibs"
652 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
660 map 'eval echo "$v \${$v:-no}"' "$@" |
661 awk "BEGIN { split(\"$files\", files) }
663 c = \"$pfx\" toupper(\$1);
669 if (file ~ /\\.h\$/) {
670 printf(\"#define %s %d\\n\", c, v) >>file;
671 } else if (file ~ /\\.asm\$/) {
672 printf(\"%%define %s %d\\n\", c, v) >>file;
673 } else if (file ~ /\\.mak\$/) {
674 n = -v ? \"\" : \"!\";
675 printf(\"%s%s=yes\\n\", n, c) >>file;
685 enabled $v && printf "%s\n" ${v%$suf}
692 eval "$var=\"\$$var $*\""
698 eval "$var=\"$* \$$var\""
704 for tok in $(eval echo \$$var); do
705 uniq_list="$(filter_out $tok $uniq_list) $tok"
707 eval "$var=\"${uniq_list}\""
715 append CFLAGS $($cflags_filter "$@")
719 append ASFLAGS $($asflags_filter "$@")
723 append OBJCFLAGS $($objcflags_filter "$@")
727 append LDFLAGS $($ldflags_filter "$@")
731 append LDEXEFLAGS $($ldflags_filter "$@")
735 append STRIPFLAGS "$@"
739 prepend extralibs $($ldflags_filter "$@")
743 append host_cppflags "$@"
747 append host_cflags $($host_cflags_filter "$@")
751 append host_ldflags $($host_ldflags_filter "$@")
755 append compat_objs $1
757 map 'add_cppflags -D$v' "$@"
762 "$@" >> $logfile 2>&1
766 eval printf '%s\\n' $CC_O
770 eval printf '%s\\n' $CC_E
777 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
784 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
791 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
795 eval printf '%s\\n' $AS_O
802 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
806 log check_inline_asm "$@"
811 check_cc "$@" <<EOF && enable $name
812 void foo(void){ __asm__ volatile($code); }
818 check_inline_asm ${1}_inline "\"$2\""
819 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
827 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
831 eval printf '%s\\n' $LD_O
836 flags=$(filter_out '-l*' "$@")
837 libs=$(filter '-l*' "$@")
838 check_cc $($cflags_filter $flags) || return
839 flags=$($ldflags_filter $flags)
840 libs=$($ldflags_filter $libs)
841 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
846 test "${hdr%.h}" = "${hdr}" &&
847 echo "#include $hdr" ||
848 echo "#include <$hdr>"
858 for hdr in $headers; do
861 echo "int main(void) { $code; return 0; }"
862 } | check_$check "$@"
866 log check_cppflags "$@"
867 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
874 set -- $($cflags_filter "$@")
881 log check_cflags "$@"
882 test_cflags "$@" && add_cflags "$@"
886 log test_objcflags "$@"
887 set -- $($objcflags_filter "$@")
888 check_objcc "$@" <<EOF
894 log check_objcflags "$@"
895 test_objcflags "$@" && add_objcflags "$@"
899 log test_ldflags "$@"
901 int main(void){ return 0; }
906 log check_ldflags "$@"
907 test_ldflags "$@" && add_ldflags "$@"
911 log test_stripflags "$@"
912 # call check_cc to get a fresh TMPO
914 int main(void) { return 0; }
916 check_cmd $strip $STRIPFLAGS "$@" $TMPO
920 log check_stripflags "$@"
921 test_stripflags "$@" && add_stripflags "$@"
925 log check_header "$@"
929 check_cpp "$@" <<EOF && enable_safe $header
940 check_ld "$@" <<EOF && enable $func
942 int main(void){ $func(); }
947 log check_mathfunc "$@"
951 test $narg = 2 && args="f, g" || args="f"
953 check_ld "$@" <<EOF && enable $func
955 float foo(float f, float g) { return $func($args); }
956 int main(void){ return 0; }
960 check_func_headers(){
961 log check_func_headers "$@"
966 for hdr in $headers; do
969 for func in $funcs; do
970 echo "long check_$func(void) { return (long) $func; }"
972 echo "int main(void) { return 0; }"
973 } | check_ld "$@" && enable $funcs && enable_safe $headers
976 check_cpp_condition(){
977 log check_cpp_condition "$@"
984 #error "unsatisfied condition: $condition"
990 log test_cflags_cpp "$@"
994 set -- $($cflags_filter "$flags")
997 #error "unsatisfied condition: $condition"
1007 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1011 log check_pkg_config "$@"
1017 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1018 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1019 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1020 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1021 set_safe "${pkg}_cflags" $pkg_cflags &&
1022 set_safe "${pkg}_libs" $pkg_libs
1026 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1030 log check_exec_crash "$@"
1033 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1034 # are safe but may not be available everywhere. Thus we use
1035 # raise(SIGTERM) instead. The check is run in a subshell so we
1036 # can redirect the "Terminated" message from the shell. SIGBUS
1037 # is not defined by standard C so it is used conditionally.
1039 (check_exec "$@") >> $logfile 2>&1 <<EOF
1041 static void sighandler(int sig){
1047 int (*func_ptr)(void) = foo;
1049 signal(SIGILL, sighandler);
1050 signal(SIGFPE, sighandler);
1051 signal(SIGSEGV, sighandler);
1053 signal(SIGBUS, sighandler);
1065 disable_safe "$type"
1066 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1070 log check_struct "$@"
1075 disable_safe "${struct}_${member}"
1076 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1077 enable_safe "${struct}_${member}"
1081 log check_builtin "$@"
1087 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1090 check_compile_assert(){
1091 log check_compile_assert "$@"
1097 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1106 check_lib "$headers" $func "$@" || die "ERROR: $name_version not found"
1109 require_pkg_config(){
1110 log require_pkg_config "$@"
1113 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1114 add_cflags $(get_safe "${pkg}_cflags")
1115 add_extralibs $(get_safe "${pkg}_libs")
1119 eval printf '%s\\n' $HOSTCC_E
1123 eval printf '%s\\n' $HOSTCC_O
1127 log check_host_cc "$@"
1130 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1134 log check_host_cpp "$@"
1137 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1140 check_host_cppflags(){
1141 log check_host_cppflags "$@"
1142 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1147 check_host_cflags(){
1148 log check_host_cflags "$@"
1149 set -- $($host_cflags_filter "$@")
1150 check_host_cc "$@" <<EOF && append host_cflags "$@"
1155 check_host_cpp_condition(){
1156 log check_host_cpp_condition "$@"
1160 check_host_cpp "$@" <<EOF
1163 #error "unsatisfied condition: $condition"
1171 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1175 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1176 mkdir -p "$(dirname $2)"
1180 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1181 # system-dependent things.
1183 AVCODEC_COMPONENTS="
1191 AVDEVICE_COMPONENTS="
1195 AVFILTER_COMPONENTS="
1198 AVFORMAT_COMPONENTS="
1204 AVRESAMPLE_COMPONENTS=""
1205 AVUTIL_COMPONENTS=""
1209 $AVDEVICE_COMPONENTS
1210 $AVFILTER_COMPONENTS
1211 $AVFORMAT_COMPONENTS
1212 $AVRESAMPLE_COMPONENTS
1217 decode_audio_example
1218 decode_video_example
1219 encode_audio_example
1220 encode_video_example
1221 filter_audio_example
1225 transcode_aac_example
1228 HWACCEL_LIBRARY_NONFREE_LIST="
1232 HWACCEL_LIBRARY_LIST="
1233 $HWACCEL_LIBRARY_NONFREE_LIST
1245 EXTERNAL_LIBRARY_GPL_LIST="
1253 EXTERNAL_LIBRARY_NONFREE_LIST="
1259 EXTERNAL_LIBRARY_VERSION3_LIST="
1266 EXTERNAL_LIBRARY_LIST="
1267 $EXTERNAL_LIBRARY_GPL_LIST
1268 $EXTERNAL_LIBRARY_NONFREE_LIST
1269 $EXTERNAL_LIBRARY_VERSION3_LIST
1310 safe_bitstream_reader
1353 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1356 $EXTERNAL_LIBRARY_LIST
1357 $HWACCEL_LIBRARY_LIST
1421 ARCH_EXT_LIST_X86_SIMD="
1449 $ARCH_EXT_LIST_X86_SIMD
1454 ARCH_EXT_LIST_MIPS="
1491 sync_val_compare_and_swap
1505 AVFoundation_AVFoundation_h
1510 cdio_paranoia_paranoia_h
1512 dev_bktr_ioctl_bt848_h
1513 dev_bktr_ioctl_meteor_h
1515 dev_video_bktr_ioctl_bt848_h
1516 dev_video_meteor_ioctl_meteor_h
1524 machine_ioctl_bt848_h
1525 machine_ioctl_meteor_h
1590 GetProcessAffinityMask
1591 GetProcessMemoryInfo
1594 GetSystemTimeAsFileTime
1599 jack_port_get_latency_range
1611 SetConsoleTextAttribute
1622 TOOLCHAIN_FEATURES="
1644 CONDITION_VARIABLE_Ptr
1647 struct_group_source_req
1648 struct_ip_mreq_source
1651 struct_rusage_ru_maxrss
1653 struct_sockaddr_sa_len
1654 struct_sockaddr_storage
1655 struct_v4l2_frmivalenum_discrete
1660 $(add_suffix _external $ARCH_EXT_LIST)
1661 $(add_suffix _inline $ARCH_EXT_LIST)
1676 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1685 # options emitted with CONFIG_ prefix but not available on the command line
1831 # code dependency declarations
1833 # architecture extensions
1838 armv8_deps="aarch64"
1839 neon_deps_any="aarch64 arm"
1840 intrinsics_neon_deps="neon"
1841 vfp_deps_any="aarch64 arm"
1844 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1852 x86_64_select="i686"
1853 x86_64_suggest="fast_cmov"
1856 amd3dnowext_deps="amd3dnow"
1872 mmx_external_deps="yasm"
1873 mmx_inline_deps="inline_asm"
1874 mmx_suggest="mmx_external mmx_inline"
1876 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1877 eval dep=\$${ext}_deps
1878 eval ${ext}_external_deps='"${dep}_external"'
1879 eval ${ext}_inline_deps='"${dep}_inline"'
1880 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1883 aligned_stack_if_any="aarch64 ppc x86"
1884 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1885 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1886 fast_unaligned_if_any="aarch64 ppc x86"
1887 simd_align_16_if_any="altivec neon sse"
1888 simd_align_32_if_any="avx"
1890 # system capabilities
1891 symver_if_any="symver_asm_label symver_gnu_asm"
1892 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1895 atomics_gcc_if="sync_val_compare_and_swap"
1896 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1897 atomics_win32_if="MemoryBarrier"
1898 atomics_native_if_any="$ATOMICS_LIST"
1899 w32threads_deps="atomics_native"
1900 threads_if_any="$THREADS_LIST"
1904 dirac_parse_select="golomb"
1905 error_resilience_select="me_cmp"
1906 faandct_deps="faan fdctdsp"
1907 faanidct_deps="faan idctdsp"
1908 h264dsp_select="startcode"
1909 intrax8_select="blockdsp idctdsp"
1912 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1913 mpeg_er_select="error_resilience"
1914 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1915 mpegaudiodsp_select="dct"
1916 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1917 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1918 vc1dsp_select="h264chroma qpeldsp startcode"
1920 # decoders / encoders
1921 aac_decoder_select="imdct15 mdct sinewin"
1922 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1923 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1924 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1925 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1926 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1927 adpcm_g722_decoder_select="g722dsp"
1928 adpcm_g722_encoder_select="g722dsp"
1929 aic_decoder_select="golomb idctdsp"
1930 alac_encoder_select="lpc"
1931 als_decoder_select="bswapdsp"
1932 amrnb_decoder_select="lsp"
1933 amrwb_decoder_select="lsp"
1934 amv_decoder_select="sp5x_decoder"
1935 ape_decoder_select="bswapdsp"
1936 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1937 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1938 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1939 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1940 atrac1_decoder_select="mdct sinewin"
1941 atrac3_decoder_select="mdct"
1942 atrac3p_decoder_select="mdct sinewin"
1943 bink_decoder_select="blockdsp hpeldsp"
1944 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1945 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1946 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1947 cllc_decoder_select="bswapdsp"
1948 comfortnoise_encoder_select="lpc"
1949 cook_decoder_select="audiodsp mdct sinewin"
1950 cscd_decoder_select="lzo"
1951 cscd_decoder_suggest="zlib"
1952 dca_decoder_select="fmtconvert mdct"
1953 dds_decoder_select="texturedsp"
1954 dnxhd_decoder_select="blockdsp idctdsp"
1955 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1956 dvvideo_decoder_select="dvprofile idctdsp"
1957 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1958 dxa_decoder_deps="zlib"
1959 dxv_decoder_select="lzf texturedsp"
1960 eac3_decoder_select="ac3_decoder"
1961 eac3_encoder_select="ac3_encoder"
1962 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1963 eatgq_decoder_select="aandcttables idctdsp"
1964 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1965 exr_decoder_deps="zlib"
1966 ffv1_decoder_select="golomb rangecoder"
1967 ffv1_encoder_select="rangecoder"
1968 ffvhuff_decoder_select="huffyuv_decoder"
1969 ffvhuff_encoder_select="huffyuv_encoder"
1970 fic_decoder_select="golomb"
1971 flac_decoder_select="flacdsp golomb"
1972 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1973 flashsv_decoder_deps="zlib"
1974 flashsv_encoder_deps="zlib"
1975 flashsv2_decoder_deps="zlib"
1976 flv_decoder_select="h263_decoder"
1977 flv_encoder_select="h263_encoder"
1978 fourxm_decoder_select="blockdsp bswapdsp"
1979 fraps_decoder_select="bswapdsp huffman"
1980 g2m_decoder_deps="zlib"
1981 g2m_decoder_select="blockdsp idctdsp jpegtables"
1982 h261_decoder_select="mpeg_er mpegvideo"
1983 h261_encoder_select="aandcttables mpegvideoenc"
1984 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1985 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1986 h263i_decoder_select="h263_decoder"
1987 h263p_encoder_select="h263_encoder"
1988 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1989 h264_decoder_suggest="error_resilience"
1990 hap_decoder_select="snappy texturedsp"
1991 hap_encoder_deps="libsnappy"
1992 hap_encoder_select="texturedspenc"
1993 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1994 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1995 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1996 iac_decoder_select="imc_decoder"
1997 imc_decoder_select="bswapdsp fft mdct sinewin"
1998 indeo3_decoder_select="hpeldsp"
1999 indeo4_decoder_select="ividsp"
2000 indeo5_decoder_select="ividsp"
2001 interplay_video_decoder_select="hpeldsp"
2002 jpegls_decoder_select="golomb mjpeg_decoder"
2003 jpegls_encoder_select="golomb"
2004 jv_decoder_select="blockdsp"
2005 lagarith_decoder_select="huffyuvdsp"
2006 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2007 loco_decoder_select="golomb"
2008 magicyuv_decoder_select="huffyuvdsp"
2009 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2010 metasound_decoder_select="lsp mdct sinewin"
2011 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2012 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2013 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2014 mjpegb_decoder_select="mjpeg_decoder"
2015 mlp_decoder_select="mlp_parser"
2016 motionpixels_decoder_select="bswapdsp"
2017 mp1_decoder_select="mpegaudio"
2018 mp1float_decoder_select="mpegaudio"
2019 mp2_decoder_select="mpegaudio"
2020 mp2float_decoder_select="mpegaudio"
2021 mp3_decoder_select="mpegaudio"
2022 mp3adu_decoder_select="mpegaudio"
2023 mp3adufloat_decoder_select="mpegaudio"
2024 mp3float_decoder_select="mpegaudio"
2025 mp3on4_decoder_select="mpegaudio"
2026 mp3on4float_decoder_select="mpegaudio"
2027 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2028 mpc8_decoder_select="mpegaudiodsp"
2029 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2030 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2031 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2032 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2033 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2034 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2035 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2036 mpeg4_encoder_select="h263_encoder"
2037 msa1_decoder_select="mss34dsp"
2038 msmpeg4v1_decoder_select="h263_decoder"
2039 msmpeg4v2_decoder_select="h263_decoder"
2040 msmpeg4v2_encoder_select="h263_encoder"
2041 msmpeg4v3_decoder_select="h263_decoder"
2042 msmpeg4v3_encoder_select="h263_encoder"
2043 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2044 mts2_decoder_select="mss34dsp"
2045 mxpeg_decoder_select="mjpeg_decoder"
2046 nellymoser_decoder_select="mdct sinewin"
2047 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2048 nuv_decoder_select="idctdsp lzo"
2049 on2avc_decoder_select="mdct"
2050 opus_decoder_deps="avresample"
2051 opus_decoder_select="imdct15"
2052 png_decoder_deps="zlib"
2053 png_encoder_deps="zlib"
2054 png_encoder_select="huffyuvencdsp"
2055 prores_decoder_select="idctdsp"
2056 prores_encoder_select="fdctdsp"
2057 qcelp_decoder_select="lsp"
2058 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2059 ra_144_encoder_select="audio_frame_queue lpc"
2060 ralf_decoder_select="golomb"
2061 rscc_decoder_deps="zlib"
2062 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2063 rv10_encoder_select="h263_encoder"
2064 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2065 rv20_encoder_select="h263_encoder"
2066 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2067 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2068 screenpresso_decoder_deps="zlib"
2069 shorten_decoder_select="golomb"
2070 sipr_decoder_select="lsp"
2071 sp5x_decoder_select="mjpeg_decoder"
2072 svq1_decoder_select="hpeldsp"
2073 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2074 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2075 svq3_decoder_suggest="zlib"
2076 tak_decoder_select="audiodsp"
2077 tdsc_decoder_deps="zlib"
2078 tdsc_decoder_select="mjpeg_decoder"
2079 theora_decoder_select="vp3_decoder"
2080 thp_decoder_select="mjpeg_decoder"
2081 tiff_decoder_suggest="zlib"
2082 tiff_encoder_suggest="zlib"
2083 truehd_decoder_select="mlp_decoder"
2084 truemotion2_decoder_select="bswapdsp"
2085 truespeech_decoder_select="bswapdsp"
2086 tscc_decoder_deps="zlib"
2087 txd_decoder_select="texturedsp"
2088 twinvq_decoder_select="mdct lsp sinewin"
2089 utvideo_decoder_select="bswapdsp"
2090 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2091 vble_decoder_select="huffyuvdsp"
2092 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2093 vc1image_decoder_select="vc1_decoder"
2094 vorbis_decoder_select="mdct"
2095 vorbis_encoder_select="mdct"
2096 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2097 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2098 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2099 vp6a_decoder_select="vp6_decoder"
2100 vp6f_decoder_select="vp6_decoder"
2101 vp7_decoder_select="h264pred videodsp vp8dsp"
2102 vp8_decoder_select="h264pred videodsp vp8dsp"
2103 vp9_decoder_select="videodsp"
2104 webp_decoder_select="vp8_decoder"
2105 wmapro_decoder_select="mdct sinewin wma_freqs"
2106 wmav1_decoder_select="mdct sinewin wma_freqs"
2107 wmav1_encoder_select="mdct sinewin wma_freqs"
2108 wmav2_decoder_select="mdct sinewin wma_freqs"
2109 wmav2_encoder_select="mdct sinewin wma_freqs"
2110 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2111 wmv1_decoder_select="h263_decoder"
2112 wmv1_encoder_select="h263_encoder"
2113 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2114 wmv2_encoder_select="h263_encoder wmv2dsp"
2115 wmv3_decoder_select="vc1_decoder"
2116 wmv3image_decoder_select="wmv3_decoder"
2117 zerocodec_decoder_deps="zlib"
2118 zlib_decoder_deps="zlib"
2119 zlib_encoder_deps="zlib"
2120 zmbv_decoder_deps="zlib"
2121 zmbv_encoder_deps="zlib"
2123 # hardware accelerators
2124 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2125 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2126 vaapi_deps="va_va_h"
2127 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2128 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2129 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2131 h263_vaapi_hwaccel_deps="vaapi"
2132 h263_vaapi_hwaccel_select="h263_decoder"
2133 h264_d3d11va_hwaccel_deps="d3d11va"
2134 h264_d3d11va_hwaccel_select="h264_decoder"
2135 h264_dxva2_hwaccel_deps="dxva2"
2136 h264_dxva2_hwaccel_select="h264_decoder"
2137 h264_mmal_hwaccel_deps="mmal"
2138 h264_qsv_hwaccel_deps="libmfx"
2139 h264_vaapi_hwaccel_deps="vaapi"
2140 h264_vaapi_hwaccel_select="h264_decoder"
2141 h264_vda_hwaccel_deps="vda"
2142 h264_vda_hwaccel_select="h264_decoder"
2143 h264_vda_old_hwaccel_deps="vda"
2144 h264_vda_old_hwaccel_select="h264_decoder"
2145 h264_vdpau_hwaccel_deps="vdpau"
2146 h264_vdpau_hwaccel_select="h264_decoder"
2147 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2148 hevc_d3d11va_hwaccel_select="hevc_decoder"
2149 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2150 hevc_dxva2_hwaccel_select="hevc_decoder"
2151 hevc_qsv_hwaccel_deps="libmfx"
2152 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2153 hevc_vdpau_hwaccel_select="hevc_decoder"
2154 mpeg1_vdpau_hwaccel_deps="vdpau"
2155 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2156 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2157 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2158 mpeg2_dxva2_hwaccel_deps="dxva2"
2159 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2160 mpeg2_mmal_hwaccel_deps="mmal"
2161 mpeg2_qsv_hwaccel_deps="libmfx"
2162 mpeg2_vaapi_hwaccel_deps="vaapi"
2163 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2164 mpeg2_vdpau_hwaccel_deps="vdpau"
2165 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2166 mpeg4_vaapi_hwaccel_deps="vaapi"
2167 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2168 mpeg4_vdpau_hwaccel_deps="vdpau"
2169 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2170 vc1_d3d11va_hwaccel_deps="d3d11va"
2171 vc1_d3d11va_hwaccel_select="vc1_decoder"
2172 vc1_dxva2_hwaccel_deps="dxva2"
2173 vc1_dxva2_hwaccel_select="vc1_decoder"
2174 vc1_mmal_hwaccel_deps="mmal"
2175 vc1_qsv_hwaccel_deps="libmfx"
2176 vc1_vaapi_hwaccel_deps="vaapi"
2177 vc1_vaapi_hwaccel_select="vc1_decoder"
2178 vc1_vdpau_hwaccel_deps="vdpau"
2179 vc1_vdpau_hwaccel_select="vc1_decoder"
2180 vp8_qsv_hwaccel_deps="libmfx"
2181 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2182 vp8_vaapi_hwaccel_select="vp8_decoder"
2183 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2184 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2185 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2186 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2188 # hardware-accelerated codecs
2189 nvenc_deps_any="dlopen LoadLibrary"
2190 nvenc_extralibs='$ldl'
2191 omx_deps="dlopen pthreads"
2192 omx_extralibs='$ldl'
2195 vaapi_encode_deps="vaapi"
2197 hwupload_cuda_filter_deps="cuda"
2198 scale_npp_filter_deps="cuda libnpp"
2200 h264_mmal_decoder_deps="mmal"
2201 h264_nvenc_encoder_deps="nvenc"
2202 h264_omx_encoder_deps="omx"
2203 h264_qsv_decoder_deps="libmfx"
2204 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2205 h264_qsv_encoder_deps="libmfx"
2206 h264_qsv_encoder_select="qsvenc"
2207 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2208 h264_vaapi_encoder_select="vaapi_encode golomb"
2209 hevc_nvenc_encoder_deps="nvenc"
2210 hevc_qsv_decoder_deps="libmfx"
2211 hevc_qsv_encoder_deps="libmfx"
2212 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2213 hevc_qsv_encoder_select="qsvenc"
2214 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2215 hevc_vaapi_encoder_select="vaapi_encode golomb"
2216 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2217 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2218 mpeg2_mmal_decoder_deps="mmal"
2219 mpeg2_qsv_decoder_deps="libmfx"
2220 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2221 mpeg2_qsv_encoder_deps="libmfx"
2222 mpeg2_qsv_encoder_select="qsvenc"
2223 mpeg4_omx_encoder_deps="omx"
2224 vc1_mmal_decoder_deps="mmal"
2225 vc1_qsv_decoder_deps="libmfx"
2226 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2227 vp8_qsv_decoder_deps="libmfx"
2228 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2230 nvenc_h264_encoder_deps="nvenc"
2231 nvenc_hevc_encoder_deps="nvenc"
2234 h264_parser_select="golomb h264dsp h264parse"
2235 hevc_parser_select="golomb"
2236 mpegaudio_parser_select="mpegaudioheader"
2237 mpegvideo_parser_select="mpegvideo"
2238 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2239 vc1_parser_select="vc1dsp"
2242 mjpeg2jpeg_bsf_select="jpegtables"
2244 # external libraries
2245 libdcadec_decoder_deps="libdcadec"
2246 libfaac_encoder_deps="libfaac"
2247 libfaac_encoder_select="audio_frame_queue"
2248 libfdk_aac_decoder_deps="libfdk_aac"
2249 libfdk_aac_encoder_deps="libfdk_aac"
2250 libfdk_aac_encoder_select="audio_frame_queue"
2251 libgsm_decoder_deps="libgsm"
2252 libgsm_encoder_deps="libgsm"
2253 libgsm_ms_decoder_deps="libgsm"
2254 libgsm_ms_encoder_deps="libgsm"
2255 libilbc_decoder_deps="libilbc"
2256 libilbc_encoder_deps="libilbc"
2257 libkvazaar_encoder_deps="libkvazaar"
2258 libmp3lame_encoder_deps="libmp3lame"
2259 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2260 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2261 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2262 libopencore_amrnb_encoder_select="audio_frame_queue"
2263 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2264 libopenh264_decoder_deps="libopenh264"
2265 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2266 libopenh264_encoder_deps="libopenh264"
2267 libopenjpeg_decoder_deps="libopenjpeg"
2268 libopenjpeg_encoder_deps="libopenjpeg"
2269 libopus_decoder_deps="libopus"
2270 libopus_encoder_deps="libopus"
2271 libopus_encoder_select="audio_frame_queue"
2272 libschroedinger_decoder_deps="libschroedinger"
2273 libschroedinger_encoder_deps="libschroedinger"
2274 libspeex_decoder_deps="libspeex"
2275 libspeex_encoder_deps="libspeex"
2276 libspeex_encoder_select="audio_frame_queue"
2277 libtheora_encoder_deps="libtheora"
2278 libtwolame_encoder_deps="libtwolame"
2279 libvo_aacenc_encoder_deps="libvo_aacenc"
2280 libvo_aacenc_encoder_select="audio_frame_queue"
2281 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2282 libvorbis_encoder_deps="libvorbis"
2283 libvorbis_encoder_select="audio_frame_queue"
2284 libvpx_vp8_decoder_deps="libvpx"
2285 libvpx_vp8_encoder_deps="libvpx"
2286 libvpx_vp9_decoder_deps="libvpx"
2287 libvpx_vp9_encoder_deps="libvpx"
2288 libwavpack_encoder_deps="libwavpack"
2289 libwavpack_encoder_select="audio_frame_queue"
2290 libwebp_encoder_deps="libwebp"
2291 libx262_encoder_deps="libx262"
2292 libx264_encoder_deps="libx264"
2293 libx265_encoder_deps="libx265"
2294 libxavs_encoder_deps="libxavs"
2295 libxvid_encoder_deps="libxvid mkstemp"
2298 ac3_demuxer_select="ac3_parser"
2299 asf_demuxer_select="riffdec"
2300 asf_muxer_select="riffenc"
2301 asf_stream_muxer_select="asf_muxer"
2302 avi_demuxer_select="iso_media riffdec"
2303 avi_muxer_select="riffenc"
2304 avisynth_demuxer_deps="avisynth"
2305 avisynth_demuxer_select="riffdec"
2306 caf_demuxer_select="iso_media riffdec"
2307 dash_muxer_select="mp4_muxer"
2308 dirac_demuxer_select="dirac_parser"
2309 dv_demuxer_select="dvprofile"
2310 dv_muxer_select="dvprofile"
2311 dxa_demuxer_select="riffdec"
2312 eac3_demuxer_select="ac3_parser"
2313 f4v_muxer_select="mov_muxer"
2314 flac_demuxer_select="flac_parser"
2315 hds_muxer_select="flv_muxer"
2316 hls_muxer_select="mpegts_muxer"
2317 ipod_muxer_select="mov_muxer"
2318 ismv_muxer_select="mov_muxer"
2319 matroska_audio_muxer_select="matroska_muxer"
2320 matroska_demuxer_select="iso_media riffdec"
2321 matroska_demuxer_suggest="bzlib lzo zlib"
2322 matroska_muxer_select="iso_media riffenc"
2323 mmf_muxer_select="riffenc"
2324 mov_demuxer_select="iso_media riffdec"
2325 mov_demuxer_suggest="zlib"
2326 mov_muxer_select="iso_media riffenc rtpenc_chain"
2327 mp3_demuxer_select="mpegaudio_parser"
2328 mp3_muxer_select="mpegaudioheader"
2329 mp4_muxer_select="mov_muxer"
2330 mpegts_demuxer_select="iso_media"
2331 mpegts_muxer_select="adts_muxer latm_muxer"
2332 mpegtsraw_demuxer_select="mpegts_demuxer"
2333 mxf_d10_muxer_select="mxf_muxer"
2334 nut_muxer_select="riffenc"
2335 nuv_demuxer_select="riffdec"
2336 oga_muxer_select="ogg_muxer"
2337 ogg_demuxer_select="dirac_parse"
2338 opus_muxer_select="ogg_muxer"
2339 psp_muxer_select="mov_muxer"
2340 rtp_demuxer_select="sdp_demuxer"
2341 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2342 rtsp_demuxer_select="http_protocol rtpdec"
2343 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2344 sap_demuxer_select="sdp_demuxer"
2345 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2346 sdp_demuxer_select="rtpdec"
2347 smoothstreaming_muxer_select="ismv_muxer"
2348 spdif_muxer_select="aac_parser"
2349 spx_muxer_select="ogg_muxer"
2350 swf_demuxer_suggest="zlib"
2351 tak_demuxer_select="tak_parser"
2352 tg2_muxer_select="mov_muxer"
2353 tgp_muxer_select="mov_muxer"
2354 w64_demuxer_select="wav_demuxer"
2355 wav_demuxer_select="riffdec"
2356 wav_muxer_select="riffenc"
2357 webm_muxer_select="iso_media riffenc"
2358 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2359 wtv_demuxer_select="mpegts_demuxer riffdec"
2360 xmv_demuxer_select="riffdec"
2361 xwma_demuxer_select="riffdec"
2364 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2365 alsa_outdev_deps="alsa_asoundlib_h"
2366 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2367 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2368 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2369 dv1394_indev_deps="dv1394"
2370 dv1394_indev_select="dv_demuxer"
2371 fbdev_indev_deps="linux_fb_h"
2372 jack_indev_deps="jack_jack_h"
2373 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2374 libcdio_indev_deps="libcdio"
2375 libdc1394_indev_deps="libdc1394"
2376 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2377 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2378 pulse_indev_deps="libpulse"
2379 sndio_indev_deps="sndio_h"
2380 sndio_outdev_deps="sndio_h"
2381 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2382 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2383 vfwcap_indev_extralibs="-lavicap32"
2384 xcbgrab_indev_deps="libxcb"
2387 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2388 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2389 ffrtmpcrypt_protocol_select="tcp_protocol"
2390 ffrtmphttp_protocol_deps="!librtmp_protocol"
2391 ffrtmphttp_protocol_select="http_protocol"
2392 gopher_protocol_select="network"
2393 http_protocol_select="tcp_protocol"
2394 httpproxy_protocol_select="tcp_protocol"
2395 https_protocol_select="tls_protocol"
2396 icecast_protocol_select="http_protocol"
2397 librtmp_protocol_deps="librtmp"
2398 librtmpe_protocol_deps="librtmp"
2399 librtmps_protocol_deps="librtmp"
2400 librtmpt_protocol_deps="librtmp"
2401 librtmpte_protocol_deps="librtmp"
2402 mmsh_protocol_select="http_protocol"
2403 mmst_protocol_select="network"
2404 rtmp_protocol_deps="!librtmp_protocol"
2405 rtmp_protocol_select="tcp_protocol"
2406 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2407 rtmps_protocol_deps="!librtmp_protocol"
2408 rtmps_protocol_select="tls_protocol"
2409 rtmpt_protocol_select="ffrtmphttp_protocol"
2410 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2411 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2412 rtp_protocol_select="udp_protocol"
2413 sctp_protocol_deps="struct_sctp_event_subscribe"
2414 sctp_protocol_select="network"
2415 srtp_protocol_select="rtp_protocol srtp"
2416 tcp_protocol_select="network"
2417 tls_gnutls_protocol_deps="gnutls"
2418 tls_gnutls_protocol_select="tcp_protocol"
2419 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2420 tls_openssl_protocol_select="tcp_protocol"
2421 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2422 udp_protocol_select="network"
2423 unix_protocol_deps="sys_un_h"
2424 unix_protocol_select="network"
2427 asyncts_filter_deps="avresample"
2428 blackframe_filter_deps="gpl"
2429 boxblur_filter_deps="gpl"
2430 bs2b_filter_deps="libbs2b"
2431 cropdetect_filter_deps="gpl"
2432 deinterlace_qsv_filter_deps="libmfx"
2433 delogo_filter_deps="gpl"
2434 drawtext_filter_deps="libfreetype"
2435 frei0r_filter_deps="frei0r dlopen"
2436 frei0r_filter_extralibs='$ldl'
2437 frei0r_src_filter_deps="frei0r dlopen"
2438 frei0r_src_filter_extralibs='$ldl'
2439 hdcd_filter_deps="libhdcd"
2440 hqdn3d_filter_deps="gpl"
2441 interlace_filter_deps="gpl"
2442 movie_filter_deps="avcodec avformat"
2443 ocv_filter_deps="libopencv"
2444 resample_filter_deps="avresample"
2445 scale_filter_deps="swscale"
2446 scale_qsv_filter_deps="libmfx"
2447 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2450 decode_audio_example_deps="avcodec avutil"
2451 decode_video_example_deps="avcodec avutil"
2452 encode_audio_example_deps="avcodec avutil"
2453 encode_video_example_deps="avcodec avutil"
2454 filter_audio_example_deps="avfilter avutil"
2455 metadata_example_deps="avformat avutil"
2456 output_example_deps="avcodec avformat avresample avutil swscale"
2457 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2458 transcode_aac_example_deps="avcodec avformat avresample"
2460 # libraries, in linking order
2461 avcodec_deps="avutil"
2462 avdevice_deps="avformat avcodec avutil"
2463 avfilter_deps="avutil"
2464 avformat_deps="avcodec avutil"
2465 avresample_deps="avutil"
2466 swscale_deps="avutil"
2469 avconv_deps="avcodec avfilter avformat avresample swscale"
2470 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2471 fps_filter null_filter resample_filter scale_filter
2473 avplay_deps="avcodec avfilter avformat avresample sdl"
2474 avplay_libs='$sdl_libs'
2475 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2476 avprobe_deps="avcodec avformat"
2480 texi2html_deps="doc"
2482 # default parameters
2484 logfile="config.log"
2486 # installation paths
2487 prefix_default="/usr/local"
2488 bindir_default='${prefix}/bin'
2489 datadir_default='${prefix}/share/avconv'
2490 docdir_default='${prefix}/share/doc/libav'
2491 incdir_default='${prefix}/include'
2492 libdir_default='${prefix}/lib'
2493 mandir_default='${prefix}/share/man'
2494 shlibdir_default="$libdir_default"
2499 host_cc_default="gcc"
2503 pkg_config_default=pkg-config
2506 version_script='--version-script'
2510 arch_default=$(uname -m)
2515 target_os_default=$(tolower $(uname -s))
2516 host_os=$target_os_default
2518 # configurable options
2519 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2524 enable faan faandct faanidct
2525 enable optimizations
2526 enable safe_bitstream_reader
2528 enable swscale_alpha
2529 enable valgrind_backtrace
2531 # By default, enable only those hwaccels that have no external dependencies.
2532 enable d3d11va dxva2 vda vdpau
2535 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2538 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2541 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2542 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2543 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2544 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2545 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2546 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2547 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2570 host_cflags_filter=echo
2571 host_ldflags_filter=echo
2573 target_path='$(CURDIR)'
2575 # since the object filename is not given with the -MM flag, the compiler
2576 # is only able to print the basename, and we must add the path ourselves
2577 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2581 if test -f configure; then
2584 source_path=$(cd $(dirname "$0"); pwd)
2585 echo "$source_path" | grep -q '[[:blank:]]' &&
2586 die "Out of tree builds are impossible with whitespace in source path."
2587 test -e "$source_path/config.h" &&
2588 die "Out of tree builds are impossible with config.h in source dir."
2595 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2601 file=$source_path/$3
2602 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2605 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2606 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2607 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2608 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2609 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2610 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2611 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2612 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2613 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2615 find_things_extern(){
2618 file=$source_path/$3
2619 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2622 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2623 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2639 for n in $COMPONENT_LIST; do
2640 v=$(toupper ${n%s})_LIST
2642 eval ${n}_if_any="\$$v"
2645 enable $ARCH_EXT_LIST
2648 echo "Unknown option \"$1\"."
2649 echo "See $0 --help for available options."
2654 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2660 echo $* | sed s/$suffix//g | print_3_columns
2672 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2673 echo "prob ${prob:-0.5}"
2681 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2682 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2691 --extra-ldexeflags=*)
2692 add_ldexeflags $optval
2695 add_extralibs $optval
2698 disable $INDEV_LIST $OUTDEV_LIST
2701 debuglevel="$optval"
2704 disable $PROGRAM_LIST
2706 --disable-everything)
2707 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2710 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2711 disable $LIBRARY_LIST $PROGRAM_LIST doc
2713 --enable-random|--disable-random)
2714 action=${opt%%-random}
2715 do_random ${action#--} $COMPONENT_LIST
2717 --enable-random=*|--disable-random=*)
2718 action=${opt%%-random=*}
2719 do_random ${action#--} $optval
2721 --enable-*=*|--disable-*=*)
2722 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2723 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2724 eval list=\$$(toupper $thing)_LIST
2725 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2726 $action $(filter "$name" $list)
2728 --enable-avserver|--disable-avserver*)
2729 warn "avserver has been removed, the ${opt} option is only"\
2730 "provided for compatibility and will be removed in the future"
2732 --enable-?*|--disable-?*)
2733 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2734 if is_in $option $COMPONENT_LIST; then
2735 test $action = disable && action=unset
2736 eval $action \$$(toupper ${option%s})_LIST
2737 elif is_in $option $CMDLINE_SELECT; then
2744 NAME="${opt#--list-}"
2745 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2747 eval show_list $NAME \$$(toupper $NAME)_LIST
2749 --help|-h) show_help
2751 --quiet|-q) quiet=yes
2754 optname="${opt%%=*}"
2755 optname="${optname#--}"
2756 optname=$(echo "$optname" | sed 's/-/_/g')
2757 if is_in $optname $CMDLINE_SET; then
2758 eval $optname='$optval'
2759 elif is_in $optname $CMDLINE_APPEND; then
2760 append $optname "$optval"
2772 disabled logging && logfile=/dev/null
2774 # Die early if licensing-related configure options are incompatible.
2775 die_license_disabled() {
2776 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2779 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2780 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2781 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2783 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2785 # Disable all the library-specific components if the library itself
2786 # is disabled, see AVCODEC_LIST and following _LIST variables.
2788 disable_components(){
2789 disabled ${1} && disable $(
2790 eval components="\$$(toupper ${1})_COMPONENTS"
2791 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2795 map 'disable_components $v' $LIBRARY_LIST
2797 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2800 case "$toolchain" in
2802 cc_default="${toolchain%-asan}"
2803 add_cflags -fsanitize=address
2804 add_ldflags -fsanitize=address
2807 cc_default="${toolchain%-msan}"
2808 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2809 add_ldflags -fsanitize=memory
2812 cc_default="${toolchain%-tsan}"
2813 add_cflags -fsanitize=thread -pie
2814 add_ldflags -fsanitize=thread -pie
2815 case "$toolchain" in
2823 cc_default="${toolchain%-usan}"
2824 add_cflags -fsanitize=undefined
2825 add_ldflags -fsanitize=undefined
2826 case "$toolchain" in
2833 target_exec_default="valgrind"
2834 case "$toolchain" in
2836 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2839 target_exec_args="--track-origins=yes --leak-check=full"
2844 # Check whether the current MSVC version needs the C99 converter.
2845 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2846 # support enough of C99 to build libav. Default to the new
2847 # behaviour if the regexp was unable to match anything, since this
2848 # successfully parses the version number of existing supported
2849 # versions that require the converter (MSVC 2010 and 2012).
2850 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2851 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2854 cc_default="c99wrap cl"
2856 ld_default="$source_path/compat/windows/mslink"
2857 nm_default="dumpbin -symbols"
2864 target_os_default="win32"
2865 # Use a relative path for TMPDIR. This makes sure all the
2866 # ffconf temp files are written with a relative path, avoiding
2867 # issues with msys/win32 path conversion for MSVC parameters
2868 # such as -Fo<file> or -out:<file>.
2874 nm_default="dumpbin -symbols"
2876 target_os_default="win32"
2880 add_cflags -fprofile-arcs -ftest-coverage
2881 add_ldflags -fprofile-arcs -ftest-coverage
2884 add_cflags -fprofile-arcs -ftest-coverage
2885 add_ldflags --coverage
2888 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2889 add_cflags -fno-strict-overflow -fstack-protector-all
2890 add_ldflags -Wl,-z,relro -Wl,-z,now
2893 die "Unknown toolchain $toolchain"
2897 test -n "$cross_prefix" && enable cross_compile
2899 if enabled cross_compile; then
2900 test -n "$arch" && test -n "$target_os" ||
2901 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2904 ar_default="${cross_prefix}${ar_default}"
2905 cc_default="${cross_prefix}${cc_default}"
2906 occ_default="${cross_prefix}${occ_default}"
2907 nm_default="${cross_prefix}${nm_default}"
2908 pkg_config_default="${cross_prefix}${pkg_config_default}"
2909 ranlib="${cross_prefix}${ranlib}"
2910 strip="${cross_prefix}${strip}"
2912 sysinclude_default="${sysroot}/usr/include"
2914 set_default arch cc pkg_config sysinclude target_exec target_os
2915 enabled cross_compile || host_cc_default=$cc
2918 if ! $pkg_config --version >/dev/null 2>&1; then
2919 warn "$pkg_config not found, library detection may fail."
2925 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2929 EXESUF=$(exesuf $target_os)
2930 HOSTEXESUF=$(exesuf $host_os)
2932 # set temporary file name
2933 : ${TMPDIR:=$TEMPDIR}
2937 if ! check_cmd mktemp -u XXXXXX; then
2938 # simple replacement for missing mktemp
2939 # NOT SAFE FOR GENERAL USE
2941 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2946 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2947 (set -C; exec > $tmp) 2>/dev/null ||
2948 die "Unable to create temporary file in $TMPDIR."
2949 append TMPFILES $tmp
2953 trap 'rm -f -- $TMPFILES' EXIT
2957 tmpfile TMPE $EXESUF
2968 # make sure we can execute files in $TMPDIR
2969 cat > $TMPSH 2>> $logfile <<EOF
2972 chmod +x $TMPSH >> $logfile 2>&1
2973 if ! $TMPSH >> $logfile 2>&1; then
2975 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2976 variable to another directory and make sure that it is not mounted noexec.
2978 die "Sanity test failed."
2984 # Filter out MSVC cl.exe options from cflags that shouldn't
2985 # be passed to gas-preprocessor
2995 -std=c99) echo -c99 ;;
2996 -mcpu=*) echo -arch ${flag#*=} ;;
2997 -mieee) echo -ieee ;;
2998 -O*|-fast) echo $flag ;;
2999 -fno-math-errno) echo -assume nomath_errno ;;
3001 -Wall) echo -msg_enable level2 ;;
3002 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3003 -Wl,*) echo $flag ;;
3013 -Wno-switch) echo -Wno-switch-enum ;;
3014 -Wno-format-zero-length) ;;
3015 -Wdisabled-optimization) ;;
3016 -Wno-pointer-sign) echo -Wno-other ;;
3022 msvc_common_flags(){
3025 # In addition to specifying certain flags under the compiler
3026 # specific filters, they must be specified here as well or else the
3027 # generic catch all at the bottom will print the original flag.
3031 -fomit-frame-pointer) ;;
3035 -fno-signed-zeros) ;;
3039 -lz) echo zlib.lib ;;
3040 -lavicap32) echo vfw32.lib user32.lib ;;
3041 -lx264) echo libx264.lib ;;
3042 -l*) echo ${flag#-l}.lib ;;
3043 -L*) echo -libpath:${flag#-L} ;;
3050 msvc_common_flags "$@"
3053 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3054 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3055 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3056 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3062 msvc_common_flags "$@"
3065 # Despite what Intel's documentation says -Wall, which is supported
3066 # on Windows, does enable remarks so disable them here.
3067 -Wall) echo $flag -Qdiag-disable:remark ;;
3068 -std=c99) echo -Qstd=c99 ;;
3076 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3077 -fomit-frame-pointer) echo -Mnoframe ;;
3088 case "${flag#*=}" in
3089 native) echo -xtarget=native ;;
3090 v9|niagara) echo -xarch=sparc ;;
3091 ultrasparc) echo -xarch=sparcvis ;;
3092 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3093 i586|pentium) echo -xchip=pentium ;;
3094 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3095 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3096 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3097 pentium4*) echo -xtarget=pentium4 ;;
3098 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3099 *-sse3) echo -xarch=sse3 ;;
3100 core2) echo -xarch=ssse3 -xchip=core2 ;;
3101 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3102 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3103 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3104 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3105 k8|opteron|athlon64|athlon-fx)
3106 echo -xarch=sse2a ;;
3107 athlon*) echo -xarch=pentium_proa ;;
3110 -std=c99) echo -xc99 ;;
3111 -fomit-frame-pointer) echo -xregs=frameptr ;;
3112 -fPIC) echo -KPIC -xcode=pic32 ;;
3113 -W*,*) echo $flag ;;
3114 -f*-*|-W*|-mimpure-text) ;;
3125 case "${flag#*=}" in
3126 armv7-a|cortex-a*) echo -mv=7a8 ;;
3127 armv7-r|cortex-r*) echo -mv=7r4 ;;
3128 armv7-m|cortex-m*) echo -mv=7m3 ;;
3129 armv6*|arm11*) echo -mv=6 ;;
3130 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3132 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3135 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3136 -mfpu=vfp) echo --float_support=vfpv2 ;;
3137 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3138 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3139 -msoft-float) echo --float_support=vfplib ;;
3140 -O[0-3]|-mf=*) echo $flag ;;
3142 -pds=*) echo $flag ;;
3143 -D*|-I*) echo $flag ;;
3144 --gcc|--abi=*) echo $flag ;;
3154 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3155 unset _ld_o _ldflags _ld_lib _ld_path
3156 unset _depflags _DEPCMD _DEPFLAGS
3159 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3161 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3162 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3163 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3166 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3168 gcc_version=$($_cc --version | head -n1)
3169 gcc_basever=$($_cc -dumpversion)
3170 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3171 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3172 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3173 if ! $_cc -dumpversion | grep -q '^2\.'; then
3174 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3178 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3180 _ident=$($_cc --version | head -n1)
3185 elif $_cc -v 2>&1 | grep -q xlc; then
3187 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3189 _cflags_size='-O5 -qcompact'
3190 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3192 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3194 _cflags_speed='-fast'
3196 _flags_filter=ccc_flags
3197 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3198 test -d "$sysroot" || die "No valid sysroot specified."
3200 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3201 armcc_conf="$PWD/armcc.conf"
3202 $_cc --arm_linux_configure \
3203 --arm_linux_config_file="$armcc_conf" \
3204 --configure_sysroot="$sysroot" \
3205 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3206 die "Error creating armcc configuration file."
3207 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3208 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3209 as_default="${cross_prefix}gcc"
3213 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3215 _ident=$($_cc -version | head -n1 | tr -s ' ')
3216 _flags='--gcc --abi=eabi -me'
3219 _depflags='-ppa -ppd=$(@:.o=.d)'
3220 _cflags_speed='-O3 -mf=5'
3221 _cflags_size='-O3 -mf=2'
3222 _flags_filter=tms470_flags
3223 elif $_cc -v 2>&1 | grep -q clang; then
3225 _ident=$($_cc --version 2>/dev/null | head -n1)
3226 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3229 elif $_cc -V 2>&1 | grep -q Sun; then
3231 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3232 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3233 _DEPFLAGS='-xM1 -xc99'
3236 _cflags_size='-O5 -xspace'
3237 _flags_filter=suncc_flags
3238 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3240 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3241 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3244 _flags_filter='filter_out -Wdisabled-optimization'
3245 elif $_cc -v 2>&1 | grep -q Open64; then
3247 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3248 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3251 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3252 elif $_cc -V 2>&1 | grep -q Portland; then
3254 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3255 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3256 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3257 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3259 _flags_filter=pgi_flags
3260 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3262 _ident=$($_cc | head -n1)
3263 # 4509: "This form of conditional instruction is deprecated"
3264 _flags="-nologo -ignore 4509"
3265 _flags_filter=armasm_flags
3266 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3268 _ident=$($_cc 2>&1 | head -n1)
3269 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3270 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3273 if $_cc -nologo- 2>&1 | grep -q Linker; then
3280 _flags_filter=msvc_flags
3282 _ld_path='-libpath:'
3284 elif $_cc 2>&1 | grep -q Intel; then
3286 _ident=$($_cc 2>&1 | head -n1)
3287 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3288 # Not only is O3 broken on 13.x+ but it is slower on all previous
3289 # versions (tested) as well.
3291 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3292 if $_cc 2>&1 | grep -q Linker; then
3299 _flags_filter=icl_flags
3301 _ld_path='-libpath:'
3302 # -Qdiag-error to make icl error when seeing certain unknown arguments
3303 _flags='-nologo -Qdiag-error:4044,10157'
3304 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3305 # with MSVC which enables it by default.
3306 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3307 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3308 # lld can emulate multiple different linkers; in ms link.exe mode,
3309 # the -? parameter gives the help output which contains an identifyable
3310 # string, while it gives an error in other modes.
3312 # The link.exe mode doesn't have a switch for getting the version,
3313 # but we can force it back to gnu mode and get the version from there.
3314 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3316 _flags_filter=msvc_flags
3318 _ld_path='-libpath:'
3319 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3321 _ident=$($_cc --version | head -n1)
3325 _flags_filter=cparser_flags
3328 eval ${pfx}_type=\$_type
3329 eval ${pfx}_ident=\$_ident
3333 eval ${1}_C=\${_cc_c-\${${1}_C}}
3334 eval ${1}_E=\${_cc_e-\${${1}_E}}
3335 eval ${1}_O=\${_cc_o-\${${1}_O}}
3337 if [ -n "$_depflags" ]; then
3338 eval ${1}_DEPFLAGS=\$_depflags
3340 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3341 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3342 eval DEP${1}FLAGS=\$_flags
3347 cflags_filter=$_flags_filter
3348 cflags_speed=$_cflags_speed
3349 cflags_size=$_cflags_size
3350 cflags_noopt=$_cflags_noopt
3351 add_cflags $_flags $_cflags
3352 cc_ldflags=$_ldflags
3355 probe_cc hostcc "$host_cc"
3356 host_cflags_filter=$_flags_filter
3357 add_host_cflags $_flags $_cflags
3360 test -n "$cc_type" && enable $cc_type ||
3361 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3363 : ${as_default:=$cc}
3364 : ${objcc_default:=$cc}
3365 : ${dep_cc_default:=$cc}
3366 : ${ld_default:=$cc}
3367 : ${host_ld_default:=$host_cc}
3368 set_default ar as objcc dep_cc ld host_ld
3371 asflags_filter=$_flags_filter
3372 add_asflags $_flags $_cflags
3375 probe_cc objcc "$objcc"
3376 objcflags_filter=$_flags_filter
3377 add_objcflags $_flags $_cflags
3381 ldflags_filter=$_flags_filter
3382 add_ldflags $_flags $_ldflags
3383 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3385 LD_LIB=${_ld_lib-$LD_LIB}
3386 LD_PATH=${_ld_path-$LD_PATH}
3388 probe_cc hostld "$host_ld"
3389 host_ldflags_filter=$_flags_filter
3390 add_host_ldflags $_flags $_ldflags
3391 HOSTLD_O=${_ld_o-$HOSTLD_O}
3393 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3394 probe_cc depcc "$dep_cc"
3395 CCDEP=${_DEPCMD:-$DEPCMD}
3396 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3400 if $ar 2>&1 | grep -q Microsoft; then
3403 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3406 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3407 arflags='-Xany -r -c'
3414 add_cflags $extra_cflags
3415 add_objcflags $extra_objcflags
3416 add_asflags $extra_cflags
3418 if test -n "$sysroot"; then
3421 add_cppflags --sysroot="$sysroot"
3422 add_ldflags --sysroot="$sysroot"
3425 add_cppflags -I"$sysinclude"
3426 add_ldflags --sysroot="$sysroot"
3431 if test "$cpu" = host; then
3432 enabled cross_compile &&
3433 die "--cpu=host makes no sense when cross-compiling."
3438 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3440 s/.*$1=\\([^ ]*\\).*/\\1/
3445 cpu=$(check_native -march || check_native -mcpu)
3449 test "${cpu:-host}" = host &&
3450 die "--cpu=host not supported with compiler $cc"
3453 # Deal with common $arch aliases
3477 "Power Macintosh"|ppc*|powerpc*)
3492 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3497 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3500 # Add processor-specific flags
3501 if enabled aarch64; then
3505 cpuflags="-march=$cpu"
3508 cpuflags="-mcpu=$cpu"
3512 elif enabled alpha; then
3514 cpuflags="-mcpu=$cpu"
3516 elif enabled arm; then
3519 check_cpp_condition stddef.h \
3520 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3525 if check_arm_arch 4; then echo armv4
3526 elif check_arm_arch 4T; then echo armv4t
3527 elif check_arm_arch 5; then echo armv5
3528 elif check_arm_arch 5E; then echo armv5e
3529 elif check_arm_arch 5T; then echo armv5t
3530 elif check_arm_arch 5TE; then echo armv5te
3531 elif check_arm_arch 5TEJ; then echo armv5te
3532 elif check_arm_arch 6; then echo armv6
3533 elif check_arm_arch 6J; then echo armv6j
3534 elif check_arm_arch 6K; then echo armv6k
3535 elif check_arm_arch 6Z; then echo armv6z
3536 elif check_arm_arch 6ZK; then echo armv6zk
3537 elif check_arm_arch 6T2; then echo armv6t2
3538 elif check_arm_arch 7; then echo armv7
3539 elif check_arm_arch 7A 7_A; then echo armv7-a
3540 elif check_arm_arch 7S; then echo armv7-a
3541 elif check_arm_arch 7R 7_R; then echo armv7-r
3542 elif check_arm_arch 7M 7_M; then echo armv7-m
3543 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3544 elif check_arm_arch 8A 8_A; then echo armv8-a
3548 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3552 cpuflags="-march=$cpu"
3553 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3556 cpuflags="-mcpu=$cpu"
3558 cortex-a*) subarch=armv7a ;;
3559 cortex-r*) subarch=armv7r ;;
3560 cortex-m*) enable thumb; subarch=armv7m ;;
3561 arm11*) subarch=armv6 ;;
3562 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3563 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3564 *) subarch=$(probe_arm_arch) ;;
3570 armv5t*) enable fast_clz ;;
3571 armv[6-8]*) enable fast_clz fast_unaligned ;;
3574 elif enabled avr32; then
3579 cpuflags="-mpart=$cpu"
3583 cpuflags="-march=$cpu"
3587 cpuflags="-mcpu=$cpu"
3591 cpuflags="-march=$cpu"
3595 elif enabled bfin; then
3597 cpuflags="-mcpu=$cpu"
3599 elif enabled mips; then
3601 cpuflags="-march=$cpu"
3603 elif enabled ppc; then
3607 case $(tolower $cpu) in
3608 601|ppc601|powerpc601)
3609 cpuflags="-mcpu=601"
3612 603*|ppc603*|powerpc603*)
3613 cpuflags="-mcpu=603"
3616 604*|ppc604*|powerpc604*)
3617 cpuflags="-mcpu=604"
3620 g3|75*|ppc75*|powerpc75*)
3621 cpuflags="-mcpu=750"
3624 g4|745*|ppc745*|powerpc745*)
3625 cpuflags="-mcpu=7450"
3628 74*|ppc74*|powerpc74*)
3629 cpuflags="-mcpu=7400"
3632 g5|970|ppc970|powerpc970)
3633 cpuflags="-mcpu=970"
3637 cpuflags="-mcpu=$cpu"
3641 cpuflags="-mcpu=$cpu"
3645 cpuflags="-mcpu=cell"
3650 cpuflags="-mcpu=e500mc"
3654 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3659 cpuflags="-mcpu=8540 -mhard-float"
3665 elif enabled sparc; then
3668 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3669 cpuflags="-mcpu=$cpu"
3671 ultrasparc*|niagara[234])
3672 cpuflags="-mcpu=$cpu"
3676 elif enabled x86; then
3680 cpuflags="-march=$cpu"
3684 # targets that do NOT support nopl and conditional mov (cmov)
3685 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3686 cpuflags="-march=$cpu"
3689 # targets that do support nopl and conditional mov (cmov)
3690 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3691 cpuflags="-march=$cpu"
3695 # targets that do support conditional mov but on which it's slow
3696 pentium4|pentium4m|prescott|nocona)
3697 cpuflags="-march=$cpu"
3705 if [ "$cpu" != generic ]; then
3706 add_cflags $cpuflags
3707 add_asflags $cpuflags
3708 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3711 # compiler sanity check
3713 int main(void){ return 0; }
3715 if test "$?" != 0; then
3716 echo "$cc is unable to create an executable file."
3717 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3718 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3719 echo "Only do this if you know what cross compiling means."
3721 die "C compiler test failed."
3724 add_cppflags -D_ISOC99_SOURCE
3726 # some compilers silently accept -std=c11, so we also need to check that the
3727 # version macro is defined properly
3728 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3731 check_cflags -std=c99
3734 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3737 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3741 add_host_cppflags -D_ISOC99_SOURCE
3742 check_host_cflags -std=c99
3743 check_host_cflags -Wall
3744 check_host_cflags -O3
3750 check_code cc "" "int test[2*($expr) - 1]" &&
3751 subarch=$arch64 || subarch=$arch32
3759 check_64bit mips mips64 '_MIPS_SIM > 1'
3763 check_64bit parisc parisc64 'sizeof(void *) > 4'
3767 check_64bit ppc ppc64 'sizeof(void *) > 4'
3771 check_64bit s390 s390x 'sizeof(void *) > 4'
3775 check_64bit sparc sparc64 'sizeof(void *) > 4'
3779 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3780 if test "$subarch" = "x86_64"; then
3787 enabled spic && enable_weak pic
3793 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3794 enabled shared && add_ldflags -Wl,-brtl
3798 enable section_data_rel_ro
3799 SLIB_INSTALL_NAME='$(SLIBNAME)'
3801 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3804 prefix_default="/boot/common"
3805 network_extralibs="-lnetwork"
3809 SHFLAGS='-shared -Wl,-h,$$(@F)'
3810 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3811 network_extralibs="-lsocket -lnsl"
3812 # When using suncc to build, the Solaris linker will mark
3813 # an executable with each instruction set encountered by
3814 # the Solaris assembler. As our libraries contain their own
3815 # guards for processor-specific code, instead suppress
3816 # generation of the HWCAPS ELF section on Solaris x86 only.
3817 enabled_all suncc x86 &&
3818 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3819 add_ldflags -Wl,-M,mapfile
3820 nm_default='nm -P -g'
3822 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3826 oss_indev_extralibs="-lossaudio"
3827 oss_outdev_extralibs="-lossaudio"
3832 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3834 oss_indev_extralibs="-lossaudio"
3835 oss_outdev_extralibs="-lossaudio"
3843 add_extralibs -lpoll -lgnugetopt
3846 enabled ppc && add_asflags -force_cpusubtype_ALL
3847 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3848 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3849 add_ldflags -Wl,-dynamic,-search_paths_first
3851 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3852 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3854 enabled x86_64 && objformat="macho64"
3855 enabled_any pic shared ||
3856 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3857 check_header dispatch/dispatch.h &&
3858 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3861 die "Native MSYS builds are discouraged, please use the MINGW environment."
3864 if test $target_os = "mingw32ce"; then
3870 if enabled x86_64; then
3871 LIBTARGET="i386:x86-64"
3872 elif enabled arm; then
3875 check_ldflags -Wl,--nxcompat
3876 check_ldflags -Wl,--dynamicbase
3877 shlibdir_default="$bindir_default"
3880 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3881 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3882 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3883 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3885 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3886 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3887 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3889 dlltool="${cross_prefix}dlltool"
3895 if enabled shared; then
3896 # Link to the import library instead of the normal static library
3899 # Cannot build both shared and static libs with MSVC or icl.
3902 shlibdir_default="$bindir_default"
3905 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3906 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3907 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3908 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3910 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3911 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3912 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3919 shlibdir_default="$bindir_default"
3922 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3923 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3924 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3926 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3927 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3931 *-dos|freedos|opendos)
3932 network_extralibs="-lsocket"
3935 add_cppflags -U__STRICT_ANSI__
3939 enable section_data_rel_ro
3943 ranlib="echo ignoring ranlib"
3948 add_cppflags -D_GNU_SOURCE
3949 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3950 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3954 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3955 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3956 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3957 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3958 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3959 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3960 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3961 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3962 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3963 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3967 add_cppflags -D_BSD_SOURCE
3972 add_cppflags -D_QNX_SOURCE
3973 network_extralibs="-lsocket"
3978 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3979 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3980 add_ldflags -Wl,--target1-abs,--no-undefined \
3981 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3982 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3983 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3984 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3985 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3988 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3995 die "Unknown OS '$target_os'."
3999 # determine libc flavour
4004 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4005 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4006 eval ${pfx}libc_type=uclibc
4007 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4008 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4009 eval ${pfx}libc_type=glibc
4010 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4011 # MinGW headers can be installed on Cygwin, so check for newlib first.
4012 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4013 eval ${pfx}libc_type=newlib
4014 add_${pfx}cppflags -U__STRICT_ANSI__
4015 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4016 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4017 eval ${pfx}libc_type=mingw64
4018 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4019 eval test \$${pfx_no_}cc_type = "gcc" &&
4020 add_${pfx}cppflags -D__printf__=__gnu_printf__
4021 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4022 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4023 eval ${pfx}libc_type=mingw32
4024 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4025 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4026 die "ERROR: MinGW32 runtime version must be >= 3.15."
4027 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4028 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4029 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4030 eval test \$${pfx_no_}cc_type = "gcc" &&
4031 add_${pfx}cppflags -D__printf__=__gnu_printf__
4032 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4033 eval ${pfx}libc_type=msvcrt
4034 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4035 if [ "$pfx" = host_ ]; then
4036 add_host_cppflags -Dsnprintf=_snprintf
4038 add_compat strtod.o strtod=avpriv_strtod
4039 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4040 _snprintf=avpriv_snprintf \
4041 vsnprintf=avpriv_vsnprintf
4044 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4045 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4046 # 0x601 by default unless something else is set by the user.
4047 # This can easily lead to us detecting functions only present
4048 # in such new versions and producing binaries requiring windows 7.0.
4049 # Therefore explicitly set the default to XP unless the user has
4050 # set something else on the command line.
4051 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4052 # family. For these cases, configure is free to use any functions
4053 # found in the SDK headers by default. (Alternatively, we could force
4054 # _WIN32_WINNT to 0x0602 in that case.)
4055 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4056 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4057 #ifdef WINAPI_FAMILY
4058 #include <winapifamily.h>
4059 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4064 if [ "$pfx" = "" ]; then
4065 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4067 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4068 eval ${pfx}libc_type=klibc
4069 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4070 eval ${pfx}libc_type=bionic
4071 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4072 eval ${pfx}libc_type=solaris
4073 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4075 eval ${pfx}libc_type=default
4076 add_${pfx}cppflags -D_DEFAULT_SOURCE
4081 test -n "$libc_type" && enable libc_$libc_type
4083 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4087 add_compat strtod.o strtod=avpriv_strtod
4091 # hacks for compiler/libc/os combinations
4093 if enabled_all tms470 libc_glibc; then
4094 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4095 add_cppflags -D__USER_LABEL_PREFIX__=
4096 add_cppflags -D__builtin_memset=memset
4097 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4098 add_cflags -pds=48 # incompatible redefinition of macro
4101 if enabled_all ccc libc_glibc; then
4102 add_ldflags -Wl,-z,now # calls to libots crash without this
4105 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4106 add_cppflags '-I\$(SRC_PATH)/compat/float'
4109 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4112 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4114 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4116 set_default $PATHS_LIST
4119 # we need to build at least one lib type
4120 if ! enabled_any static shared; then
4122 At least one library type must be built.
4123 Specify --enable-static to build the static libraries or --enable-shared to
4124 build the shared libraries as well. To only build the shared libraries specify
4125 --disable-static in addition to --enable-shared.
4130 disabled optimizations || check_cflags -fomit-frame-pointer
4133 disabled pic && return
4136 case "$target_os" in
4146 enabled pic && enable_weak_pic
4148 check_cc <<EOF || die "Symbol mangling check failed."
4151 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4152 extern_prefix=${sym%%ff_extern*}
4154 check_cc <<EOF && enable_weak inline_asm
4155 void foo(void) { __asm__ volatile ("" ::); }
4159 for restrict_keyword in restrict __restrict__ __restrict; do
4160 check_cc <<EOF && _restrict=$restrict_keyword && break
4161 void foo(char * $restrict_keyword p);
4165 check_cc <<EOF && enable pragma_deprecated
4166 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4169 check_cc <<EOF && enable attribute_packed
4170 struct { int x; } __attribute__((packed)) x;
4173 check_cc <<EOF && enable attribute_may_alias
4174 union { int x; } __attribute__((may_alias)) x;
4177 check_cc <<EOF || die "endian test failed"
4178 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4180 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4183 log "check_gas using '$as' as AS"
4184 # :vararg is used on aarch64, arm and ppc altivec
4185 check_as <<EOF || return 1
4186 .macro m n, y:vararg=0
4191 # .altmacro is only used in arm asm
4192 ! enabled arm || check_as <<EOF || return 1
4199 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4201 enabled_any arm aarch64 && nogas=die
4202 enabled_all ppc altivec && nogas=warn
4206 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4207 gcc) gaspp_as_type=gas ;;
4208 *) gaspp_as_type=$as_type ;;
4211 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4213 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4214 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4216 if ! check_gas ; then
4219 $nogas "GNU assembler not found, install/update gas-preprocessor"
4222 check_as <<EOF && enable as_func
4228 check_inline_asm inline_asm_labels '"1:\n"'
4230 if enabled aarch64; then
4231 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4232 # internal assembler in clang 3.3 does not support this instruction
4233 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4234 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4236 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4238 elif enabled alpha; then
4242 elif enabled arm; then
4244 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4245 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4246 enabled thumb && check_cflags -mthumb || check_cflags -marm
4248 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4250 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4252 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4253 case "${cross_prefix:-$cc}" in
4254 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4255 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4256 __asm__ (".eabi_attribute 28, 1");
4257 int main(void) { return 0; }
4260 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4263 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4264 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4265 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4266 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4267 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4268 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4270 [ $target_os = linux ] || [ $target_os = android ] ||
4271 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4274 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4276 check_as <<EOF && enable as_dn_directive
4280 check_as <<EOF && enable as_fpu_directive
4284 # llvm's integrated assembler supports .object_arch from llvm 3.5
4285 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4289 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4291 elif enabled mips; then
4293 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4295 # make sure that only an instruction set is enabled
4296 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4298 if enabled mips64; then
4299 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4300 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4301 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4303 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4304 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4305 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4308 elif enabled parisc; then
4310 if enabled gcc; then
4311 case $($cc -dumpversion) in
4312 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4316 elif enabled ppc; then
4318 enable local_aligned_8 local_aligned_16 local_aligned_32
4320 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4321 check_inline_asm ibm_asm '"add 0, 0, 0"'
4322 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4323 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4325 # AltiVec flags: The FSF version of GCC differs from the Apple version
4326 if enabled altivec; then
4327 check_cflags -maltivec -mabi=altivec &&
4328 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4329 check_cflags -faltivec
4331 # check if our compiler supports Motorola AltiVec C API
4332 check_cc <<EOF || disable altivec
4335 vector signed int v1 = (vector signed int) { 0 };
4336 vector signed int v2 = (vector signed int) { 1 };
4337 v1 = vec_add(v1, v2);
4342 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4345 if enabled vsx; then
4346 check_cflags -mvsx &&
4347 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4350 if enabled power8; then
4351 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4354 elif enabled x86; then
4356 check_builtin rdtsc intrin.h "__rdtsc()"
4357 check_builtin mm_empty mmintrin.h "_mm_empty()"
4359 enable local_aligned_8 local_aligned_16 local_aligned_32
4361 # check whether EBP is available on x86
4362 # As 'i' is stored on the stack, this program will crash
4363 # if the base pointer is used to access it because the
4364 # base pointer is cleared in the inline assembly code.
4365 check_exec_crash <<EOF && enable ebp_available
4367 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4371 # check whether EBX is available on x86
4372 check_inline_asm ebx_available '""::"b"(0)' &&
4373 check_inline_asm ebx_available '"":::"%ebx"'
4375 # check whether xmm clobbers are supported
4376 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4378 # check whether binutils is new enough to compile SSSE3/MMXEXT
4379 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4380 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4382 if ! disabled_any asm mmx yasm; then
4383 if check_cmd $yasmexe --version; then
4384 enabled x86_64 && yasm_extra="-m amd64"
4385 yasm_debug="-g dwarf2"
4386 elif check_cmd nasm -v; then
4388 yasm_debug="-g -F dwarf"
4389 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4392 YASMFLAGS="-f $objformat $yasm_extra"
4393 enabled pic && append YASMFLAGS "-DPIC"
4394 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4395 case "$objformat" in
4396 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4399 check_yasm "movbe ecx, [5]" && enable yasm ||
4400 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4401 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4402 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4403 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4404 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4405 check_yasm "CPU amdnop" || disable cpunop
4409 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4416 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4418 check_ldflags -Wl,--as-needed
4420 if check_func dlopen; then
4422 elif check_func dlopen -ldl; then
4426 if ! disabled network; then
4427 check_func getaddrinfo $network_extralibs
4428 check_func inet_aton $network_extralibs
4430 check_type netdb.h "struct addrinfo"
4431 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4432 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4433 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4434 check_type poll.h "struct pollfd"
4435 check_type netinet/sctp.h "struct sctp_event_subscribe"
4436 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4437 check_type netinet/in.h "struct sockaddr_in6"
4438 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4439 check_type "sys/types.h sys/socket.h" socklen_t
4441 # Prefer arpa/inet.h over winsock2
4442 if check_header arpa/inet.h ; then
4443 check_func closesocket
4444 elif check_header winsock2.h ; then
4445 check_func_headers winsock2.h closesocket -lws2 &&
4446 network_extralibs="-lws2" ||
4447 { check_func_headers winsock2.h closesocket -lws2_32 &&
4448 network_extralibs="-lws2_32"; } || disable winsock2_h network
4449 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4451 check_type ws2tcpip.h socklen_t
4452 check_type ws2tcpip.h "struct addrinfo"
4453 check_type ws2tcpip.h "struct group_source_req"
4454 check_type ws2tcpip.h "struct ip_mreq_source"
4455 check_type ws2tcpip.h "struct ipv6_mreq"
4456 check_type winsock2.h "struct pollfd"
4457 check_struct winsock2.h "struct sockaddr" sa_len
4458 check_type ws2tcpip.h "struct sockaddr_in6"
4459 check_type ws2tcpip.h "struct sockaddr_storage"
4465 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4466 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4467 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4468 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4470 case "$custom_allocator" in
4472 # jemalloc by default does not use a prefix
4473 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4476 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4481 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4482 check_func ${malloc_prefix}memalign && enable memalign
4483 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4485 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4486 check_func_headers time.h clock_gettime ||
4487 { check_lib time.h clock_gettime -lrt && LIBRT="-lrt"; }
4491 check_func gethrtime
4493 check_func getrusage
4494 check_func gettimeofday
4497 check_func localtime_r
4498 check_func mach_absolute_time
4502 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4503 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4504 check_func sched_getaffinity
4505 check_func setrlimit
4506 check_func strerror_r
4511 check_func_headers io.h setmode
4512 check_func_headers stdlib.h getenv
4514 check_func_headers windows.h CoTaskMemFree -lole32
4515 check_func_headers windows.h GetProcessAffinityMask
4516 check_func_headers windows.h GetProcessTimes
4517 check_func_headers windows.h GetSystemTimeAsFileTime
4518 check_func_headers windows.h LoadLibrary
4519 check_func_headers windows.h MapViewOfFile
4520 check_func_headers windows.h SetConsoleTextAttribute
4521 check_func_headers windows.h Sleep
4522 check_func_headers windows.h VirtualAlloc
4523 check_struct windows.h "CONDITION_VARIABLE" Ptr
4525 check_header direct.h
4526 check_header dlfcn.h
4527 check_header d3d11.h
4529 check_header dxva2api.h
4531 check_header mach/mach_time.h
4532 check_header malloc.h
4534 check_header sys/mman.h
4535 check_header sys/param.h
4536 check_header sys/resource.h
4537 check_header sys/select.h
4538 check_header sys/time.h
4539 check_header sys/un.h
4540 check_header unistd.h
4541 check_header valgrind/valgrind.h
4542 check_header vdpau/vdpau.h
4543 check_header vdpau/vdpau_x11.h
4544 check_header VideoDecodeAcceleration/VDADecoder.h
4545 check_header windows.h
4546 check_header X11/extensions/XvMClib.h
4548 # it seems there are versions of clang in some distros that try to use the
4549 # gcc headers, which explodes for stdatomic
4550 # so we also check that atomics actually work here
4551 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4553 check_lib "windows.h shellapi.h" CommandLineToArgvW -lshell32
4554 check_lib "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4555 check_lib "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4557 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4559 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4560 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4561 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4563 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4564 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4565 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4566 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4567 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4569 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4571 if ! disabled w32threads && ! enabled pthreads; then
4572 check_func_headers "windows.h process.h" _beginthreadex &&
4573 enable w32threads || disable w32threads
4576 # check for some common methods of building with pthread support
4577 # do this before the optional library checks as some of them require pthreads
4578 if ! disabled pthreads && ! enabled w32threads; then
4580 if check_func pthread_join -pthread; then
4582 add_extralibs -pthread
4583 elif check_func pthread_join -pthreads; then
4584 add_cflags -pthreads
4585 add_extralibs -pthreads
4586 elif check_func pthread_join -lpthreadGC2; then
4587 add_extralibs -lpthreadGC2
4588 elif check_lib pthread.h pthread_join -lpthread; then
4590 elif ! check_func pthread_join; then
4596 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
4598 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4599 disabled bzlib || check_lib bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4601 check_lib math.h sin -lm && LIBM="-lm"
4607 for func in $MATH_FUNCS; do
4608 eval check_mathfunc $func \${${func}_args:-1} $LIBM
4611 # these are off by default, so fail if requested and not available
4612 enabled avisynth && { check_lib "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4613 check_lib "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4614 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4615 enabled cuda && check_lib cuda.h cuInit -lcuda
4616 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4617 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4618 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4619 enabled libdc1394 && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
4620 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4621 enabled libfaac && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4622 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4623 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4624 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4625 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4626 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4627 done || die "ERROR: libgsm not found"; }
4628 enabled libhdcd && require_pkg_config libhdcd "hdcd/hdcd_simple.h" hdcd_new
4629 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4630 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4631 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4632 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4633 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4634 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4635 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4636 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4637 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4638 enabled libopenjpeg && { check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4639 require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4640 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4641 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4642 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4643 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4644 enabled libsnappy && require libsnappy snappy-c.h snappy_compress -lsnappy
4645 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4646 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4647 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4648 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4649 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4650 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4651 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4652 enabled libvpx_vp8_decoder && {
4653 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4654 disable libvpx_vp8_decoder;
4656 enabled libvpx_vp8_encoder && {
4657 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4658 disable libvpx_vp8_encoder;
4660 enabled libvpx_vp9_decoder && {
4661 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4662 disable libvpx_vp9_decoder;
4664 enabled libvpx_vp9_encoder && {
4665 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4666 disable libvpx_vp9_encoder;
4668 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4669 die "libvpx enabled but no supported decoders found"
4672 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4673 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4674 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4675 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4676 die "ERROR: libx264 version must be >= 0.118."; } &&
4677 { check_cpp_condition x264.h "X264_MPEG2" &&
4679 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4680 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4681 die "ERROR: libx265 version must be >= 57."; }
4682 enabled libxavs && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4683 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4684 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4685 { ! enabled cross_compile &&
4686 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4687 add_ldflags -L/opt/vc/lib/ &&
4688 check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4689 die "ERROR: mmal not found" &&
4690 check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4691 enabled omx_rpi && enable omx
4692 enabled omx && { check_header OMX_Core.h ||
4693 { ! enabled cross_compile && enabled omx_rpi && {
4694 add_cflags -isystem/opt/vc/include/IL ; }
4695 check_header OMX_Core.h ; } ||
4696 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_libs; }||
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" $sdl_cflags &&
4719 ! disabled pod2man && check_cmd pod2man --help && enable pod2man || disable pod2man
4720 ! disabled texi2html && check_cmd texi2html -version && enable texi2html || disable texi2html
4722 check_header linux/fb.h
4723 check_header linux/videodev2.h
4724 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4726 check_header AVFoundation/AVFoundation.h
4728 check_header sys/videoio.h
4730 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4731 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4732 # w32api 3.12 had it defined wrong
4733 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4735 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4736 { check_header dev/bktr/ioctl_meteor.h &&
4737 check_header dev/bktr/ioctl_bt848.h; } ||
4738 { check_header machine/ioctl_meteor.h &&
4739 check_header machine/ioctl_bt848.h; } ||
4740 { check_header dev/video/meteor/ioctl_meteor.h &&
4741 check_header dev/video/bktr/ioctl_bt848.h; } ||
4742 check_header dev/ic/bt8xx.h
4744 check_header sndio.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_libs $xcb_shm_libs $xcb_xfixes_libs"
4781 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4784 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4788 check_lib "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
4792 check_lib "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11 &&
4796 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4800 check_lib "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11 &&
4803 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4805 # add some useful compiler flags if supported
4806 check_cflags -Wdeclaration-after-statement
4808 check_cflags -Wdisabled-optimization
4809 check_cflags -Wpointer-arith
4810 check_cflags -Wredundant-decls
4811 check_cflags -Wwrite-strings
4812 check_cflags -Wtype-limits
4813 check_cflags -Wundef
4814 check_cflags -Wmissing-prototypes
4815 check_cflags -Wstrict-prototypes
4817 if enabled extra_warnings; then
4818 check_cflags -Wcast-qual
4819 check_cflags -Wextra
4820 check_cflags -Wpedantic
4823 check_disable_warning(){
4824 warning_flag=-W${1#-Wno-}
4825 test_cflags $warning_flag && add_cflags $1
4828 check_disable_warning -Wno-parentheses
4829 check_disable_warning -Wno-switch
4830 check_disable_warning -Wno-format-zero-length
4831 check_disable_warning -Wno-pointer-sign
4833 check_disable_warning_headers(){
4834 warning_flag=-W${1#-Wno-}
4835 test_cflags $warning_flag && append cflags_headers $1
4838 check_disable_warning_headers -Wno-deprecated-declarations
4839 check_disable_warning_headers -Wno-unused-variable
4841 check_objcflags -fobjc-arc && enable objc_arc
4843 # add some linker flags
4844 check_ldflags -Wl,--warn-common
4845 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4846 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4847 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4849 # add some strip flags
4850 # -wN '..@*' is more selective than -x, but not available everywhere.
4851 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4853 enabled neon_clobber_test &&
4854 check_ldflags -Wl,--wrap,avcodec_open2 \
4855 -Wl,--wrap,avcodec_decode_audio4 \
4856 -Wl,--wrap,avcodec_decode_video2 \
4857 -Wl,--wrap,avcodec_decode_subtitle2 \
4858 -Wl,--wrap,avcodec_encode_audio2 \
4859 -Wl,--wrap,avcodec_encode_video2 \
4860 -Wl,--wrap,avcodec_encode_subtitle \
4861 -Wl,--wrap,avcodec_send_packet \
4862 -Wl,--wrap,avcodec_receive_packet \
4863 -Wl,--wrap,avcodec_send_frame \
4864 -Wl,--wrap,avcodec_receive_frame \
4865 -Wl,--wrap,avresample_convert ||
4866 disable neon_clobber_test
4868 enabled xmm_clobber_test &&
4869 check_ldflags -Wl,--wrap,avcodec_open2 \
4870 -Wl,--wrap,avcodec_decode_audio4 \
4871 -Wl,--wrap,avcodec_decode_video2 \
4872 -Wl,--wrap,avcodec_decode_subtitle2 \
4873 -Wl,--wrap,avcodec_encode_audio2 \
4874 -Wl,--wrap,avcodec_encode_video2 \
4875 -Wl,--wrap,avcodec_encode_subtitle \
4876 -Wl,--wrap,avcodec_send_packet \
4877 -Wl,--wrap,avcodec_receive_packet \
4878 -Wl,--wrap,avcodec_send_frame \
4879 -Wl,--wrap,avcodec_receive_frame \
4880 -Wl,--wrap,avresample_convert \
4881 -Wl,--wrap,sws_scale ||
4882 disable xmm_clobber_test
4884 check_ld <<EOF && enable proper_dce
4885 extern const int array[512];
4886 static inline int func(void) { return array[0]; }
4887 int main(void) { return 0; }
4890 if enabled proper_dce; then
4891 echo "X { local: *; };" > $TMPV
4892 if test_ldflags -Wl,${version_script},$TMPV; then
4893 append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
4894 check_cc <<EOF && enable symver_asm_label
4895 void ff_foo(void) __asm__ ("av_foo@VERSION");
4896 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4898 check_cc <<EOF && enable symver_gnu_asm
4899 __asm__(".symver ff_foo,av_foo@VERSION");
4900 void ff_foo(void) {}
4905 if [ -z "$optflags" ]; then
4906 if enabled small; then
4907 optflags=$cflags_size
4908 elif enabled optimizations; then
4909 optflags=$cflags_speed
4911 optflags=$cflags_noopt
4917 enabled lto && check_ldflags "$@"
4921 if enabled lto; then
4922 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4924 check_ldflags -flto $cpuflags
4927 check_optflags $optflags
4928 check_optflags -fno-math-errno
4929 check_optflags -fno-signed-zeros
4931 if enabled icc; then
4932 # Just warnings, no remarks
4934 # -wd: Disable following warnings
4935 # 144, 167, 556: -Wno-pointer-sign
4936 # 1292: attribute "foo" ignored
4937 # 1419: external declaration in primary source file
4938 # 10006: ignoring unknown option -fno-signed-zeros
4939 # 10148: ignoring unknown option -Wno-parentheses
4940 # 10156: ignoring option '-W'; no argument required
4941 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4942 # 11030: Warning unknown option --as-needed
4943 # 10156: ignoring option '-export'; no argument required
4944 check_ldflags -wd10156,11030
4945 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4946 enable ebp_available
4947 if enabled x86_32; then
4948 icc_version=$($cc -dumpversion)
4949 test ${icc_version%%.*} -ge 11 &&
4950 check_cflags -falign-stack=maintain-16-byte ||
4951 disable aligned_stack
4953 elif enabled ccc; then
4954 # disable some annoying warnings
4955 add_cflags -msg_disable bitnotint
4956 add_cflags -msg_disable mixfuncvoid
4957 add_cflags -msg_disable nonstandcast
4958 add_cflags -msg_disable unsupieee
4959 elif enabled gcc; then
4960 check_optflags -fno-tree-vectorize
4961 check_cflags -Werror=implicit-function-declaration
4962 check_cflags -Werror=missing-prototypes
4963 check_cflags -Werror=return-type
4964 check_cflags -Werror=declaration-after-statement
4965 check_cflags -Werror=vla
4966 check_cflags -Werror=format-security
4967 check_cflags -fdiagnostics-color=auto
4968 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4969 elif enabled llvm_gcc; then
4970 check_cflags -mllvm -stack-alignment=16
4971 elif enabled clang; then
4972 check_cflags -mllvm -stack-alignment=16
4973 check_cflags -Qunused-arguments
4974 check_cflags -Werror=implicit-function-declaration
4975 check_cflags -Werror=missing-prototypes
4976 check_cflags -Werror=return-type
4977 elif enabled cparser; then
4978 add_cflags -Wno-missing-variable-declarations
4979 add_cflags -Wno-empty-statement
4980 elif enabled armcc; then
4981 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4982 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4983 # 2523: use of inline assembly is deprecated
4984 add_cflags -W${armcc_opt},--diag_suppress=2523
4985 add_cflags -W${armcc_opt},--diag_suppress=1207
4986 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4987 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4988 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4989 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4990 elif enabled tms470; then
4991 add_cflags -pds=824 -pds=837
4993 elif enabled pathscale; then
4994 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4995 elif enabled_any msvc icl; then
4996 enabled x86_32 && disable aligned_stack
4997 enabled_all x86_32 debug && add_cflags -Oy-
4998 enabled debug && add_ldflags -debug
4999 enable pragma_deprecated
5000 if enabled icl; then
5001 # -Qansi-alias is basically -fstrict-aliasing, but does not work
5002 # (correctly) on icl 13.x.
5003 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5004 add_cflags -Qansi-alias
5005 # icl will pass the inline asm tests but inline asm is currently
5006 # not supported (build will fail)
5009 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5010 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5011 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5012 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5013 # (as it ends up if the restrict redefine is done before including stdlib.h), while
5014 # MSVC 2013 and newer can handle it fine.
5015 # If this declspec fails, force including stdlib.h before the restrict redefinition
5016 # happens in config.h.
5017 if [ $_restrict != restrict ]; then
5018 check_cc <<EOF || add_cflags -FIstdlib.h
5019 __declspec($_restrict) void* foo(int);
5024 for pfx in "" host_; do
5025 varname=${pfx%_}cc_type
5026 eval "type=\$$varname"
5027 if [ $type = "msvc" ]; then
5028 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5029 static inline int foo(int a) { return a; }
5036 add_asflags -Qunused-arguments
5042 check_ldflags -Qunused-arguments
5048 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5052 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5054 check_deps $CONFIG_LIST \
5059 enabled_all dxva2 CoTaskMemFree &&
5060 prepend avconv_libs $($ldflags_filter "-lole32") &&
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
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' $LIBRARY_LIST
5334 print_program_libs(){
5335 eval "program_libs=\$${1}_libs"
5336 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5339 map 'print_program_libs $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"