3 # Libav configure script
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
10 # Prevent locale nonsense from breaking basic text processing.
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
23 (: ${foo%%bar}) 2> /dev/null
26 (: ${foo?}) 2> /dev/null
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
32 if test "0$FF_CONF_EXEC" -lt 1; then
34 try_exec bash "$0" "$@"
36 if test "0$FF_CONF_EXEC" -lt 2; then
38 try_exec ksh "$0" "$@"
40 if test "0$FF_CONF_EXEC" -lt 3; then
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
115 --disable-doc do not build documentation
116 --disable-pod2man do not build manual pages
117 --disable-texi2html do not build HTML documentation
118 --disable-avdevice disable libavdevice build
119 --disable-avcodec disable libavcodec build
120 --disable-avformat disable libavformat build
121 --disable-avutil disable libavutil build
122 --disable-swscale disable libswscale build
123 --disable-avfilter disable video filter support [no]
124 --disable-avresample disable libavresample build [no]
125 --disable-pthreads disable pthreads [auto]
126 --disable-w32threads disable Win32 threads [auto]
127 --disable-network disable network support [no]
128 --disable-dct disable DCT code
129 --disable-error-resilience disable error resilience code
130 --disable-lsp disable LSP code
131 --disable-lzo disable LZO decoder code
132 --disable-mdct disable MDCT code
133 --disable-rdft disable RDFT code
134 --disable-fft disable FFT code
135 --disable-faan disable floating point AAN (I)DCT code
137 Individual component options:
138 --disable-everything disable all components listed below
139 --disable-encoder=NAME disable encoder NAME
140 --enable-encoder=NAME enable encoder NAME
141 --disable-encoders disable all encoders
142 --disable-decoder=NAME disable decoder NAME
143 --enable-decoder=NAME enable decoder NAME
144 --disable-decoders disable all decoders
145 --disable-hwaccel=NAME disable hwaccel NAME
146 --enable-hwaccel=NAME enable hwaccel NAME
147 --disable-hwaccels disable all hwaccels
148 --disable-muxer=NAME disable muxer NAME
149 --enable-muxer=NAME enable muxer NAME
150 --disable-muxers disable all muxers
151 --disable-demuxer=NAME disable demuxer NAME
152 --enable-demuxer=NAME enable demuxer NAME
153 --disable-demuxers disable all demuxers
154 --enable-parser=NAME enable parser NAME
155 --disable-parser=NAME disable parser NAME
156 --disable-parsers disable all parsers
157 --enable-bsf=NAME enable bitstream filter NAME
158 --disable-bsf=NAME disable bitstream filter NAME
159 --disable-bsfs disable all bitstream filters
160 --enable-protocol=NAME enable protocol NAME
161 --disable-protocol=NAME disable protocol NAME
162 --disable-protocols disable all protocols
163 --enable-indev=NAME enable input device NAME
164 --disable-indev=NAME disable input device NAME
165 --disable-indevs disable input devices
166 --enable-outdev=NAME enable output device NAME
167 --disable-outdev=NAME disable output device NAME
168 --disable-outdevs disable output devices
169 --disable-devices disable all devices
170 --enable-filter=NAME enable filter NAME
171 --disable-filter=NAME disable filter NAME
172 --disable-filters disable all filters
174 External library support:
176 Using any of the following switches will allow Libav to link to the
177 corresponding external library. All the components depending on that library
178 will become enabled, if all their other dependencies are met and they are not
179 explicitly disabled. E.g. --enable-libwavpack will enable linking to
180 libwavpack and allow the libwavpack encoder to be built, unless it is
181 specifically disabled with --disable-encoder=libwavpack.
183 Note that only the system libraries are auto-detected. All the other external
184 libraries must be explicitly enabled.
186 Also note that the following help text describes the purpose of the libraries
187 themselves, not all their features will necessarily be usable by Libav.
189 --enable-avisynth video frameserver
190 --enable-bzlib bzip2 compression [autodetect]
191 --enable-frei0r video filtering plugins
192 --enable-gnutls crypto
193 --enable-libbs2b Bauer stereophonic-to-binaural DSP
194 --enable-libcdio audio CD input
195 --enable-libdc1394 IEEE 1394/Firewire camera input
196 --enable-libdcadec DCA audio decoding
197 --enable-libfaac AAC audio encoding
198 --enable-libfdk-aac AAC audio encoding/decoding
199 --enable-libfontconfig font configuration and management
200 --enable-libfreetype font rendering
201 --enable-libgsm GSM audio encoding/decoding
202 --enable-libhdcd HDCD decoding filter
203 --enable-libilbc ILBC audio encoding/decoding
204 --enable-libkvazaar HEVC video encoding
205 --enable-libmp3lame MP3 audio encoding
206 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
207 --enable-libopencore-amrwb AMR-WB audio decoding
208 --enable-libopencv computer vision
209 --enable-libopenh264 H.264 video encoding/decoding
210 --enable-libopenjpeg JPEG 2000 image encoding/decoding
211 --enable-libopus Opus audio encoding/decoding
212 --enable-libpulse Pulseaudio sound server
213 --enable-librtmp RTMP streaming
214 --enable-libschroedinger Dirac video encoding/decoding
215 --enable-libsnappy snappy compression
216 --enable-libspeex Speex audio encoding/decoding
217 --enable-libtheora Theora video encoding/decoding
218 --enable-libtwolame MP2 audio encoding
219 --enable-libvo-aacenc AAC audio encoding
220 --enable-libvo-amrwbenc AMR-WB audio encoding
221 --enable-libvorbis Vorbis audio encoding/decoding
222 --enable-libvpx VP* video encoding/decoding
223 --enable-libwavpack Wavpack audio encoding/decoding
224 --enable-libwebp WebP image encoding/decoding
225 --enable-libx264 H.264 video encoding
226 --enable-libx265 HEVC video encoding
227 --enable-libxavs Chinese AVS video encoding
228 --enable-libxcb X window system protocol communication
229 --enable-libxcb-shm X11 shm communication [auto]
230 --enable-libxcb-xfixes X11 mouse rendering [auto]
231 --enable-libxvid MPEG-4 ASP video encoding
232 --enable-openssl crypto
233 --enable-zlib compression [autodetect]
235 The following libraries provide various hardware acceleration features:
236 --enable-cuda Nvidia CUDA (dynamically linked)
237 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
238 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
239 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
240 --enable-libnpp Nvidia CUDA processing
241 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
242 --enable-nvenc Nvidia video encoding
243 --enable-omx OpenMAX IL
244 --enable-omx-rpi OpenMAX IL for Raspberry Pi
245 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
246 --enable-vda Apple Video Decode Acceleration [auto]
247 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
250 --arch=ARCH select architecture [$arch]
251 --cpu=CPU select the minimum required CPU (affects
252 instruction selection, may crash on older CPUs)
253 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
254 --enable-cross-compile assume a cross-compiler is used
255 --sysroot=PATH root of cross-build tree
256 --sysinclude=PATH location of cross-build system headers
257 --target-os=OS compiler targets OS [$target_os]
258 --target-exec=CMD command to run executables on target
259 --target-path=DIR path to view of build directory on target
260 --target-samples=DIR path to samples directory on target
261 --toolchain=NAME set tool defaults according to NAME
263 --ar=AR use archive tool AR [$ar_default]
264 --as=AS use assembler AS [$as_default]
265 --cc=CC use C compiler CC [$cc_default]
266 --objcc=OCC use ObjC compiler OCC [$cc_default]
267 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
268 --ld=LD use linker LD
269 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
270 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
271 --host-cc=HOSTCC use host C compiler HOSTCC
272 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
273 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
274 --host-ld=HOSTLD use host linker HOSTLD
275 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
276 --host-libs=HLIBS use libs HLIBS when linking for host
277 --host-os=OS compiler host OS [$target_os]
278 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
279 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
280 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
281 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
282 --extra-libs=ELIBS add ELIBS [$ELIBS]
283 --extra-version=STRING version string suffix []
284 --optflags=OPTFLAGS override optimization-related compiler flags
285 --build-suffix=SUFFIX library name suffix []
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) echo $v ;; esac"
439 eval "case $v in $pat) ;; *) echo $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_cc "$@" <<EOF && append CPPFLAGS "$@"
874 set -- $($cflags_filter "$@")
881 log check_cflags "$@"
882 test_cflags "$@" && add_cflags "$@"
887 set -- $($cflags_filter "$@")
888 check_objcc "$@" <<EOF
894 log check_cflags "$@"
895 test_objcflags "$@" && 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 "$@"
1011 log check_pkg_config "$@"
1016 check_cmd $pkg_config --exists --print-errors $pkg || return
1017 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1018 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1019 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1020 set_safe "${pkg}_cflags" $pkg_cflags &&
1021 set_safe "${pkg}_libs" $pkg_libs
1025 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1031 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1032 # are safe but may not be available everywhere. Thus we use
1033 # raise(SIGTERM) instead. The check is run in a subshell so we
1034 # can redirect the "Terminated" message from the shell. SIGBUS
1035 # is not defined by standard C so it is used conditionally.
1037 (check_exec "$@") >> $logfile 2>&1 <<EOF
1039 static void sighandler(int sig){
1045 int (*func_ptr)(void) = foo;
1047 signal(SIGILL, sighandler);
1048 signal(SIGFPE, sighandler);
1049 signal(SIGSEGV, sighandler);
1051 signal(SIGBUS, sighandler);
1063 disable_safe "$type"
1064 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1068 log check_struct "$@"
1073 disable_safe "${struct}_${member}"
1074 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1075 enable_safe "${struct}_${member}"
1079 log check_builtin "$@"
1085 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1088 check_compile_assert(){
1089 log check_compile_assert "$@"
1095 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1103 check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1106 require_pkg_config(){
1108 check_pkg_config "$@" || die "ERROR: $pkg not found"
1109 add_cflags $(get_safe "${pkg}_cflags")
1110 add_extralibs $(get_safe "${pkg}_libs")
1114 eval printf '%s\\n' $HOSTCC_E
1118 eval printf '%s\\n' $HOSTCC_O
1122 log check_host_cc "$@"
1125 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1129 log check_host_cpp "$@"
1132 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1135 check_host_cppflags(){
1136 log check_host_cppflags "$@"
1137 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1142 check_host_cflags(){
1143 log check_host_cflags "$@"
1144 set -- $($host_cflags_filter "$@")
1145 check_host_cc "$@" <<EOF && append host_cflags "$@"
1150 check_host_cpp_condition(){
1151 log check_host_cpp_condition "$@"
1155 check_host_cpp "$@" <<EOF
1158 #error "unsatisfied condition: $condition"
1166 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1170 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1171 mkdir -p "$(dirname $2)"
1175 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1176 # system-dependent things.
1178 AVCODEC_COMPONENTS="
1186 AVDEVICE_COMPONENTS="
1190 AVFILTER_COMPONENTS="
1193 AVFORMAT_COMPONENTS="
1199 AVRESAMPLE_COMPONENTS=""
1200 AVUTIL_COMPONENTS=""
1204 $AVDEVICE_COMPONENTS
1205 $AVFILTER_COMPONENTS
1206 $AVFORMAT_COMPONENTS
1207 $AVRESAMPLE_COMPONENTS
1213 filter_audio_example
1217 transcode_aac_example
1220 HWACCEL_LIBRARY_NONFREE_LIST="
1224 HWACCEL_LIBRARY_LIST="
1225 $HWACCEL_LIBRARY_NONFREE_LIST
1237 EXTERNAL_LIBRARY_GPL_LIST="
1245 EXTERNAL_LIBRARY_NONFREE_LIST="
1251 EXTERNAL_LIBRARY_VERSION3_LIST="
1258 EXTERNAL_LIBRARY_LIST="
1259 $EXTERNAL_LIBRARY_GPL_LIST
1260 $EXTERNAL_LIBRARY_NONFREE_LIST
1261 $EXTERNAL_LIBRARY_VERSION3_LIST
1302 safe_bitstream_reader
1348 $EXTERNAL_LIBRARY_LIST
1349 $HWACCEL_LIBRARY_LIST
1412 ARCH_EXT_LIST_X86_SIMD="
1440 $ARCH_EXT_LIST_X86_SIMD
1445 ARCH_EXT_LIST_MIPS="
1482 sync_val_compare_and_swap
1496 AVFoundation_AVFoundation_h
1501 cdio_paranoia_paranoia_h
1503 dev_bktr_ioctl_bt848_h
1504 dev_bktr_ioctl_meteor_h
1506 dev_video_bktr_ioctl_bt848_h
1507 dev_video_meteor_ioctl_meteor_h
1515 machine_ioctl_bt848_h
1516 machine_ioctl_meteor_h
1581 GetProcessAffinityMask
1582 GetProcessMemoryInfo
1585 GetSystemTimeAsFileTime
1590 jack_port_get_latency_range
1602 SetConsoleTextAttribute
1613 TOOLCHAIN_FEATURES="
1635 CONDITION_VARIABLE_Ptr
1638 struct_group_source_req
1639 struct_ip_mreq_source
1642 struct_rusage_ru_maxrss
1644 struct_sockaddr_sa_len
1645 struct_sockaddr_storage
1646 struct_v4l2_frmivalenum_discrete
1651 $(add_suffix _external $ARCH_EXT_LIST)
1652 $(add_suffix _inline $ARCH_EXT_LIST)
1669 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1679 # options emitted with CONFIG_ prefix but not available on the command line
1826 # code dependency declarations
1828 # architecture extensions
1833 armv8_deps="aarch64"
1834 neon_deps_any="aarch64 arm"
1835 intrinsics_neon_deps="neon"
1836 vfp_deps_any="aarch64 arm"
1839 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1847 x86_64_select="i686"
1848 x86_64_suggest="fast_cmov"
1851 amd3dnowext_deps="amd3dnow"
1867 mmx_external_deps="yasm"
1868 mmx_inline_deps="inline_asm"
1869 mmx_suggest="mmx_external mmx_inline"
1871 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1872 eval dep=\$${ext}_deps
1873 eval ${ext}_external_deps='"${dep}_external"'
1874 eval ${ext}_inline_deps='"${dep}_inline"'
1875 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1878 aligned_stack_if_any="aarch64 ppc x86"
1879 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1880 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1881 fast_unaligned_if_any="aarch64 ppc x86"
1882 simd_align_16_if_any="altivec neon sse"
1883 simd_align_32_if_any="avx"
1885 # system capabilities
1886 symver_if_any="symver_asm_label symver_gnu_asm"
1887 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1890 atomics_gcc_if="sync_val_compare_and_swap"
1891 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1892 atomics_win32_if="MemoryBarrier"
1893 atomics_native_if_any="$ATOMICS_LIST"
1894 w32threads_deps="atomics_native"
1895 threads_if_any="$THREADS_LIST"
1899 dirac_parse_select="golomb"
1900 error_resilience_select="me_cmp"
1901 faandct_deps="faan fdctdsp"
1902 faanidct_deps="faan idctdsp"
1903 h264dsp_select="startcode"
1904 intrax8_select="blockdsp idctdsp"
1907 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1908 mpeg_er_select="error_resilience"
1909 mpegaudio_select="mpegaudiodsp"
1910 mpegaudiodsp_select="dct"
1911 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1912 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1913 vc1dsp_select="h264chroma qpeldsp startcode"
1915 # decoders / encoders
1916 aac_decoder_select="imdct15 mdct sinewin"
1917 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1918 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1919 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1920 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1921 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1922 adpcm_g722_decoder_select="g722dsp"
1923 adpcm_g722_encoder_select="g722dsp"
1924 aic_decoder_select="golomb idctdsp"
1925 alac_encoder_select="lpc"
1926 als_decoder_select="bswapdsp"
1927 amrnb_decoder_select="lsp"
1928 amrwb_decoder_select="lsp"
1929 amv_decoder_select="sp5x_decoder"
1930 ape_decoder_select="bswapdsp"
1931 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1932 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1933 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1934 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1935 atrac1_decoder_select="mdct sinewin"
1936 atrac3_decoder_select="mdct"
1937 atrac3p_decoder_select="mdct sinewin"
1938 bink_decoder_select="blockdsp hpeldsp"
1939 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1940 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1941 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1942 cllc_decoder_select="bswapdsp"
1943 comfortnoise_encoder_select="lpc"
1944 cook_decoder_select="audiodsp mdct sinewin"
1945 cscd_decoder_select="lzo"
1946 cscd_decoder_suggest="zlib"
1947 dca_decoder_select="fmtconvert mdct"
1948 dds_decoder_select="texturedsp"
1949 dnxhd_decoder_select="blockdsp idctdsp"
1950 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1951 dvvideo_decoder_select="dvprofile idctdsp"
1952 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1953 dxa_decoder_deps="zlib"
1954 dxv_decoder_select="lzf texturedsp"
1955 eac3_decoder_select="ac3_decoder"
1956 eac3_encoder_select="ac3_encoder"
1957 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1958 eatgq_decoder_select="aandcttables idctdsp"
1959 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1960 exr_decoder_deps="zlib"
1961 ffv1_decoder_select="golomb rangecoder"
1962 ffv1_encoder_select="rangecoder"
1963 ffvhuff_decoder_select="huffyuv_decoder"
1964 ffvhuff_encoder_select="huffyuv_encoder"
1965 fic_decoder_select="golomb"
1966 flac_decoder_select="flacdsp golomb"
1967 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1968 flashsv_decoder_deps="zlib"
1969 flashsv_encoder_deps="zlib"
1970 flashsv2_decoder_deps="zlib"
1971 flv_decoder_select="h263_decoder"
1972 flv_encoder_select="h263_encoder"
1973 fourxm_decoder_select="blockdsp bswapdsp"
1974 fraps_decoder_select="bswapdsp huffman"
1975 g2m_decoder_deps="zlib"
1976 g2m_decoder_select="blockdsp idctdsp jpegtables"
1977 h261_decoder_select="mpeg_er mpegvideo"
1978 h261_encoder_select="aandcttables mpegvideoenc"
1979 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1980 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1981 h263i_decoder_select="h263_decoder"
1982 h263p_encoder_select="h263_encoder"
1983 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1984 h264_decoder_suggest="error_resilience"
1985 hap_decoder_select="snappy texturedsp"
1986 hap_encoder_deps="libsnappy"
1987 hap_encoder_select="texturedspenc"
1988 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1989 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1990 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1991 iac_decoder_select="imc_decoder"
1992 imc_decoder_select="bswapdsp fft mdct sinewin"
1993 indeo3_decoder_select="hpeldsp"
1994 indeo4_decoder_select="ividsp"
1995 indeo5_decoder_select="ividsp"
1996 interplay_video_decoder_select="hpeldsp"
1997 jpegls_decoder_select="golomb mjpeg_decoder"
1998 jpegls_encoder_select="golomb"
1999 jv_decoder_select="blockdsp"
2000 lagarith_decoder_select="huffyuvdsp"
2001 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2002 loco_decoder_select="golomb"
2003 magicyuv_decoder_select="huffyuvdsp"
2004 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2005 metasound_decoder_select="lsp mdct sinewin"
2006 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2007 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2008 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2009 mjpegb_decoder_select="mjpeg_decoder"
2010 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2011 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2012 mlp_decoder_select="mlp_parser"
2013 motionpixels_decoder_select="bswapdsp"
2014 mp1_decoder_select="mpegaudio"
2015 mp1float_decoder_select="mpegaudio"
2016 mp2_decoder_select="mpegaudio"
2017 mp2float_decoder_select="mpegaudio"
2018 mp3_decoder_select="mpegaudio"
2019 mp3adu_decoder_select="mpegaudio"
2020 mp3adufloat_decoder_select="mpegaudio"
2021 mp3float_decoder_select="mpegaudio"
2022 mp3on4_decoder_select="mpegaudio"
2023 mp3on4float_decoder_select="mpegaudio"
2024 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2025 mpc8_decoder_select="mpegaudiodsp"
2026 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2027 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2028 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2029 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2030 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2031 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2032 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2033 mpeg4_encoder_select="h263_encoder"
2034 msa1_decoder_select="mss34dsp"
2035 msmpeg4v1_decoder_select="h263_decoder"
2036 msmpeg4v2_decoder_select="h263_decoder"
2037 msmpeg4v2_encoder_select="h263_encoder"
2038 msmpeg4v3_decoder_select="h263_decoder"
2039 msmpeg4v3_encoder_select="h263_encoder"
2040 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2041 mts2_decoder_select="mss34dsp"
2042 mxpeg_decoder_select="mjpeg_decoder"
2043 nellymoser_decoder_select="mdct sinewin"
2044 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2045 nuv_decoder_select="idctdsp lzo"
2046 on2avc_decoder_select="mdct"
2047 opus_decoder_deps="avresample"
2048 opus_decoder_select="imdct15"
2049 png_decoder_deps="zlib"
2050 png_encoder_deps="zlib"
2051 png_encoder_select="huffyuvencdsp"
2052 prores_decoder_select="idctdsp"
2053 prores_encoder_select="fdctdsp"
2054 qcelp_decoder_select="lsp"
2055 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2056 ra_144_encoder_select="audio_frame_queue lpc"
2057 ralf_decoder_select="golomb"
2058 rscc_decoder_deps="zlib"
2059 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2060 rv10_encoder_select="h263_encoder"
2061 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2062 rv20_encoder_select="h263_encoder"
2063 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2064 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2065 screenpresso_decoder_deps="zlib"
2066 shorten_decoder_select="golomb"
2067 sipr_decoder_select="lsp"
2068 sp5x_decoder_select="mjpeg_decoder"
2069 svq1_decoder_select="hpeldsp"
2070 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2071 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2072 svq3_decoder_suggest="zlib"
2073 tak_decoder_select="audiodsp"
2074 tdsc_decoder_deps="zlib"
2075 tdsc_decoder_select="mjpeg_decoder"
2076 theora_decoder_select="vp3_decoder"
2077 thp_decoder_select="mjpeg_decoder"
2078 tiff_decoder_suggest="zlib"
2079 tiff_encoder_suggest="zlib"
2080 truehd_decoder_select="mlp_decoder"
2081 truemotion2_decoder_select="bswapdsp"
2082 truespeech_decoder_select="bswapdsp"
2083 tscc_decoder_deps="zlib"
2084 txd_decoder_select="texturedsp"
2085 twinvq_decoder_select="mdct lsp sinewin"
2086 utvideo_decoder_select="bswapdsp"
2087 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2088 vble_decoder_select="huffyuvdsp"
2089 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2090 vc1image_decoder_select="vc1_decoder"
2091 vorbis_decoder_select="mdct"
2092 vorbis_encoder_select="mdct"
2093 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2094 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2095 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2096 vp6a_decoder_select="vp6_decoder"
2097 vp6f_decoder_select="vp6_decoder"
2098 vp7_decoder_select="h264pred videodsp vp8dsp"
2099 vp8_decoder_select="h264pred videodsp vp8dsp"
2100 vp9_decoder_select="videodsp"
2101 webp_decoder_select="vp8_decoder"
2102 wmapro_decoder_select="mdct sinewin wma_freqs"
2103 wmav1_decoder_select="mdct sinewin wma_freqs"
2104 wmav1_encoder_select="mdct sinewin wma_freqs"
2105 wmav2_decoder_select="mdct sinewin wma_freqs"
2106 wmav2_encoder_select="mdct sinewin wma_freqs"
2107 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2108 wmv1_decoder_select="h263_decoder"
2109 wmv1_encoder_select="h263_encoder"
2110 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2111 wmv2_encoder_select="h263_encoder wmv2dsp"
2112 wmv3_decoder_select="vc1_decoder"
2113 wmv3image_decoder_select="wmv3_decoder"
2114 zerocodec_decoder_deps="zlib"
2115 zlib_decoder_deps="zlib"
2116 zlib_encoder_deps="zlib"
2117 zmbv_decoder_deps="zlib"
2118 zmbv_encoder_deps="zlib"
2120 # hardware accelerators
2121 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2122 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2123 vaapi_deps="va_va_h"
2124 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2125 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2126 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2128 h263_vaapi_hwaccel_deps="vaapi"
2129 h263_vaapi_hwaccel_select="h263_decoder"
2130 h264_d3d11va_hwaccel_deps="d3d11va"
2131 h264_d3d11va_hwaccel_select="h264_decoder"
2132 h264_dxva2_hwaccel_deps="dxva2"
2133 h264_dxva2_hwaccel_select="h264_decoder"
2134 h264_mmal_decoder_deps="mmal"
2135 h264_mmal_decoder_select="mmal"
2136 h264_mmal_hwaccel_deps="mmal"
2137 h264_omx_encoder_deps="omx"
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_decoder_deps="mmal"
2161 mpeg2_mmal_decoder_select="mmal"
2162 mpeg2_mmal_hwaccel_deps="mmal"
2163 mpeg2_qsv_hwaccel_deps="libmfx"
2164 mpeg2_vaapi_hwaccel_deps="vaapi"
2165 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2166 mpeg2_vdpau_hwaccel_deps="vdpau"
2167 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2168 mpeg4_omx_encoder_deps="omx"
2169 mpeg4_vaapi_hwaccel_deps="vaapi"
2170 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2171 mpeg4_vdpau_hwaccel_deps="vdpau"
2172 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2173 vc1_d3d11va_hwaccel_deps="d3d11va"
2174 vc1_d3d11va_hwaccel_select="vc1_decoder"
2175 vc1_dxva2_hwaccel_deps="dxva2"
2176 vc1_dxva2_hwaccel_select="vc1_decoder"
2177 vc1_mmal_decoder_deps="mmal"
2178 vc1_mmal_decoder_select="mmal"
2179 vc1_mmal_hwaccel_deps="mmal"
2180 vc1_vaapi_hwaccel_deps="vaapi"
2181 vc1_vaapi_hwaccel_select="vc1_decoder"
2182 vc1_vdpau_hwaccel_deps="vdpau"
2183 vc1_vdpau_hwaccel_select="vc1_decoder"
2184 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2185 vp8_vaapi_hwaccel_select="vp8_decoder"
2186 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2187 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2188 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2189 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2191 # hardware-accelerated codecs
2192 nvenc_deps_any="dlopen LoadLibrary"
2193 nvenc_extralibs='$ldl'
2194 omx_deps="dlopen pthreads"
2195 omx_extralibs='$ldl'
2198 vaapi_encode_deps="vaapi"
2200 hwupload_cuda_filter_deps="cuda"
2201 scale_npp_filter_deps="cuda libnpp"
2203 h264_nvenc_encoder_deps="nvenc"
2204 h264_qsv_decoder_deps="libmfx"
2205 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2206 h264_qsv_encoder_deps="libmfx"
2207 h264_qsv_encoder_select="qsvenc"
2208 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2209 h264_vaapi_encoder_select="vaapi_encode golomb"
2211 hevc_nvenc_encoder_deps="nvenc"
2212 hevc_qsv_decoder_deps="libmfx"
2213 hevc_qsv_encoder_deps="libmfx"
2214 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2215 hevc_qsv_encoder_select="qsvenc"
2216 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2217 hevc_vaapi_encoder_select="vaapi_encode golomb"
2218 mpeg2_qsv_decoder_deps="libmfx"
2219 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2220 mpeg2_qsv_encoder_deps="libmfx"
2221 mpeg2_qsv_encoder_select="qsvenc"
2223 nvenc_h264_encoder_deps="nvenc"
2224 nvenc_hevc_encoder_deps="nvenc"
2227 h264_parser_select="golomb h264dsp h264parse"
2228 hevc_parser_select="golomb"
2229 mpegvideo_parser_select="mpegvideo"
2230 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2231 vc1_parser_select="vc1dsp"
2234 mjpeg2jpeg_bsf_select="jpegtables"
2236 # external libraries
2237 libdcadec_decoder_deps="libdcadec"
2238 libfaac_encoder_deps="libfaac"
2239 libfaac_encoder_select="audio_frame_queue"
2240 libfdk_aac_decoder_deps="libfdk_aac"
2241 libfdk_aac_encoder_deps="libfdk_aac"
2242 libfdk_aac_encoder_select="audio_frame_queue"
2243 libgsm_decoder_deps="libgsm"
2244 libgsm_encoder_deps="libgsm"
2245 libgsm_ms_decoder_deps="libgsm"
2246 libgsm_ms_encoder_deps="libgsm"
2247 libilbc_decoder_deps="libilbc"
2248 libilbc_encoder_deps="libilbc"
2249 libkvazaar_encoder_deps="libkvazaar"
2250 libmp3lame_encoder_deps="libmp3lame"
2251 libmp3lame_encoder_select="audio_frame_queue"
2252 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2253 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2254 libopencore_amrnb_encoder_select="audio_frame_queue"
2255 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2256 libopenh264_decoder_deps="libopenh264"
2257 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2258 libopenh264_encoder_deps="libopenh264"
2259 libopenjpeg_decoder_deps="libopenjpeg"
2260 libopenjpeg_encoder_deps="libopenjpeg"
2261 libopus_decoder_deps="libopus"
2262 libopus_encoder_deps="libopus"
2263 libopus_encoder_select="audio_frame_queue"
2264 libschroedinger_decoder_deps="libschroedinger"
2265 libschroedinger_encoder_deps="libschroedinger"
2266 libspeex_decoder_deps="libspeex"
2267 libspeex_encoder_deps="libspeex"
2268 libspeex_encoder_select="audio_frame_queue"
2269 libtheora_encoder_deps="libtheora"
2270 libtwolame_encoder_deps="libtwolame"
2271 libvo_aacenc_encoder_deps="libvo_aacenc"
2272 libvo_aacenc_encoder_select="audio_frame_queue"
2273 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2274 libvorbis_encoder_deps="libvorbis"
2275 libvorbis_encoder_select="audio_frame_queue"
2276 libvpx_vp8_decoder_deps="libvpx"
2277 libvpx_vp8_encoder_deps="libvpx"
2278 libvpx_vp9_decoder_deps="libvpx"
2279 libvpx_vp9_encoder_deps="libvpx"
2280 libwavpack_encoder_deps="libwavpack"
2281 libwebp_encoder_deps="libwebp"
2282 libx262_encoder_deps="libx262"
2283 libx264_encoder_deps="libx264"
2284 libx265_encoder_deps="libx265"
2285 libxavs_encoder_deps="libxavs"
2286 libxvid_encoder_deps="libxvid"
2289 ac3_demuxer_select="ac3_parser"
2290 asf_demuxer_select="riffdec"
2291 asf_muxer_select="riffenc"
2292 asf_stream_muxer_select="asf_muxer"
2293 avi_demuxer_select="iso_media riffdec"
2294 avi_muxer_select="riffenc"
2295 avisynth_demuxer_deps="avisynth"
2296 avisynth_demuxer_select="riffdec"
2297 caf_demuxer_select="iso_media riffdec"
2298 dash_muxer_select="mp4_muxer"
2299 dirac_demuxer_select="dirac_parser"
2300 dv_demuxer_select="dvprofile"
2301 dv_muxer_select="dvprofile"
2302 dxa_demuxer_select="riffdec"
2303 eac3_demuxer_select="ac3_parser"
2304 f4v_muxer_select="mov_muxer"
2305 flac_demuxer_select="flac_parser"
2306 hds_muxer_select="flv_muxer"
2307 hls_muxer_select="mpegts_muxer"
2308 ipod_muxer_select="mov_muxer"
2309 ismv_muxer_select="mov_muxer"
2310 matroska_audio_muxer_select="matroska_muxer"
2311 matroska_demuxer_select="iso_media riffdec"
2312 matroska_demuxer_suggest="bzlib lzo zlib"
2313 matroska_muxer_select="iso_media riffenc"
2314 mmf_muxer_select="riffenc"
2315 mov_demuxer_select="iso_media riffdec"
2316 mov_demuxer_suggest="zlib"
2317 mov_muxer_select="iso_media riffenc rtpenc_chain"
2318 mp3_demuxer_select="mpegaudio_parser"
2319 mp4_muxer_select="mov_muxer"
2320 mpegts_demuxer_select="iso_media"
2321 mpegts_muxer_select="adts_muxer latm_muxer"
2322 mpegtsraw_demuxer_select="mpegts_demuxer"
2323 mxf_d10_muxer_select="mxf_muxer"
2324 nut_muxer_select="riffenc"
2325 nuv_demuxer_select="riffdec"
2326 oga_muxer_select="ogg_muxer"
2327 ogg_demuxer_select="dirac_parse"
2328 opus_muxer_select="ogg_muxer"
2329 psp_muxer_select="mov_muxer"
2330 rtp_demuxer_select="sdp_demuxer"
2331 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2332 rtsp_demuxer_select="http_protocol rtpdec"
2333 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2334 sap_demuxer_select="sdp_demuxer"
2335 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2336 sdp_demuxer_select="rtpdec"
2337 smoothstreaming_muxer_select="ismv_muxer"
2338 spdif_muxer_select="aac_parser"
2339 spx_muxer_select="ogg_muxer"
2340 swf_demuxer_suggest="zlib"
2341 tak_demuxer_select="tak_parser"
2342 tg2_muxer_select="mov_muxer"
2343 tgp_muxer_select="mov_muxer"
2344 w64_demuxer_select="wav_demuxer"
2345 wav_demuxer_select="riffdec"
2346 wav_muxer_select="riffenc"
2347 webm_muxer_select="iso_media riffenc"
2348 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2349 wtv_demuxer_select="mpegts_demuxer riffdec"
2350 xmv_demuxer_select="riffdec"
2351 xwma_demuxer_select="riffdec"
2354 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2355 alsa_outdev_deps="alsa_asoundlib_h"
2356 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2357 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2358 dv1394_indev_deps="dv1394"
2359 dv1394_indev_select="dv_demuxer"
2360 fbdev_indev_deps="linux_fb_h"
2361 jack_indev_deps="jack_jack_h"
2362 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2363 libcdio_indev_deps="libcdio"
2364 libdc1394_indev_deps="libdc1394"
2365 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2366 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2367 pulse_indev_deps="libpulse"
2368 sndio_indev_deps="sndio_h"
2369 sndio_outdev_deps="sndio_h"
2370 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2371 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2372 vfwcap_indev_extralibs="-lavicap32"
2373 xcbgrab_indev_deps="libxcb"
2376 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2377 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2378 ffrtmpcrypt_protocol_select="tcp_protocol"
2379 ffrtmphttp_protocol_deps="!librtmp_protocol"
2380 ffrtmphttp_protocol_select="http_protocol"
2381 gopher_protocol_select="network"
2382 http_protocol_select="tcp_protocol"
2383 httpproxy_protocol_select="tcp_protocol"
2384 https_protocol_select="tls_protocol"
2385 icecast_protocol_select="http_protocol"
2386 librtmp_protocol_deps="librtmp"
2387 librtmpe_protocol_deps="librtmp"
2388 librtmps_protocol_deps="librtmp"
2389 librtmpt_protocol_deps="librtmp"
2390 librtmpte_protocol_deps="librtmp"
2391 mmsh_protocol_select="http_protocol"
2392 mmst_protocol_select="network"
2393 rtmp_protocol_deps="!librtmp_protocol"
2394 rtmp_protocol_select="tcp_protocol"
2395 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2396 rtmps_protocol_deps="!librtmp_protocol"
2397 rtmps_protocol_select="tls_protocol"
2398 rtmpt_protocol_select="ffrtmphttp_protocol"
2399 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2400 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2401 rtp_protocol_select="udp_protocol"
2402 sctp_protocol_deps="struct_sctp_event_subscribe"
2403 sctp_protocol_select="network"
2404 srtp_protocol_select="rtp_protocol srtp"
2405 tcp_protocol_select="network"
2406 tls_gnutls_protocol_deps="gnutls"
2407 tls_gnutls_protocol_select="tcp_protocol"
2408 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2409 tls_openssl_protocol_select="tcp_protocol"
2410 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2411 udp_protocol_select="network"
2412 unix_protocol_deps="sys_un_h"
2413 unix_protocol_select="network"
2416 blackframe_filter_deps="gpl"
2417 boxblur_filter_deps="gpl"
2418 bs2b_filter_deps="libbs2b"
2419 cropdetect_filter_deps="gpl"
2420 deinterlace_qsv_filter_deps="libmfx"
2421 delogo_filter_deps="gpl"
2422 drawtext_filter_deps="libfreetype"
2423 frei0r_filter_deps="frei0r dlopen"
2424 frei0r_filter_extralibs='$ldl'
2425 frei0r_src_filter_deps="frei0r dlopen"
2426 frei0r_src_filter_extralibs='$ldl'
2427 hdcd_filter_deps="libhdcd"
2428 hqdn3d_filter_deps="gpl"
2429 interlace_filter_deps="gpl"
2430 ocv_filter_deps="libopencv"
2431 resample_filter_deps="avresample"
2432 scale_filter_deps="swscale"
2433 scale_qsv_filter_deps="libmfx"
2434 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2437 avcodec_example_deps="avcodec avutil"
2438 filter_audio_example_deps="avfilter avutil"
2439 metadata_example_deps="avformat avutil"
2440 output_example_deps="avcodec avformat avutil swscale"
2441 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2442 transcode_aac_example_deps="avcodec avformat avresample"
2444 # libraries, in linking order
2445 avcodec_deps="avutil"
2446 avdevice_deps="avformat avcodec avutil"
2447 avfilter_deps="avutil"
2448 avformat_deps="avcodec avutil"
2449 avresample_deps="avutil"
2450 swscale_deps="avutil"
2453 avconv_deps="avcodec avfilter avformat avresample swscale"
2454 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2455 fps_filter null_filter resample_filter scale_filter
2457 avplay_deps="avcodec avfilter avformat avresample sdl"
2458 avplay_libs='$sdl_libs'
2459 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2460 avprobe_deps="avcodec avformat"
2464 texi2html_deps="doc"
2466 # default parameters
2468 logfile="config.log"
2470 # installation paths
2471 prefix_default="/usr/local"
2472 bindir_default='${prefix}/bin'
2473 datadir_default='${prefix}/share/avconv'
2474 docdir_default='${prefix}/share/doc/libav'
2475 incdir_default='${prefix}/include'
2476 libdir_default='${prefix}/lib'
2477 mandir_default='${prefix}/share/man'
2478 shlibdir_default="$libdir_default"
2483 host_cc_default="gcc"
2488 pkg_config_default=pkg-config
2491 version_script='--version-script'
2495 arch_default=$(uname -m)
2500 target_os_default=$(tolower $(uname -s))
2501 host_os=$target_os_default
2503 # configurable options
2504 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2509 enable faan faandct faanidct
2510 enable optimizations
2511 enable safe_bitstream_reader
2513 enable swscale_alpha
2514 enable valgrind_backtrace
2516 # By default, enable only those hwaccels that have no external dependencies.
2517 enable d3d11va dxva2 vda vdpau
2520 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2523 FULLNAME='$(NAME)$(BUILDSUF)'
2524 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2527 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2528 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2529 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2530 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2531 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2532 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2533 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2556 host_cflags_filter=echo
2557 host_ldflags_filter=echo
2559 target_path='$(CURDIR)'
2561 # since the object filename is not given with the -MM flag, the compiler
2562 # is only able to print the basename, and we must add the path ourselves
2563 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2567 if test -f configure; then
2570 source_path=$(cd $(dirname "$0"); pwd)
2571 echo "$source_path" | grep -q '[[:blank:]]' &&
2572 die "Out of tree builds are impossible with whitespace in source path."
2573 test -e "$source_path/config.h" &&
2574 die "Out of tree builds are impossible with config.h in source dir."
2581 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2587 file=$source_path/$3
2588 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2591 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2592 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2593 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2594 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2595 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2596 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2597 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2598 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2599 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2601 find_things_extern(){
2604 file=$source_path/$3
2605 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2608 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2609 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2625 for n in $COMPONENT_LIST; do
2626 v=$(toupper ${n%s})_LIST
2628 eval ${n}_if_any="\$$v"
2631 enable $ARCH_EXT_LIST
2634 echo "Unknown option \"$1\"."
2635 echo "See $0 --help for available options."
2640 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2646 echo $* | sed s/$suffix//g | print_3_columns
2658 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2659 echo "prob ${prob:-0.5}"
2667 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2668 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2677 --extra-ldexeflags=*)
2678 add_ldexeflags $optval
2681 add_extralibs $optval
2684 disable $INDEV_LIST $OUTDEV_LIST
2687 debuglevel="$optval"
2690 disable $PROGRAM_LIST
2692 --disable-everything)
2693 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2696 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2697 disable $LIBRARY_LIST $PROGRAM_LIST doc
2699 --enable-random|--disable-random)
2700 action=${opt%%-random}
2701 do_random ${action#--} $COMPONENT_LIST
2703 --enable-random=*|--disable-random=*)
2704 action=${opt%%-random=*}
2705 do_random ${action#--} $optval
2707 --enable-*=*|--disable-*=*)
2708 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2709 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2710 eval list=\$$(toupper $thing)_LIST
2711 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2712 $action $(filter "$name" $list)
2714 --enable-avserver|--disable-avserver*)
2715 warn "avserver has been removed, the ${opt} option is only"\
2716 "provided for compatibility and will be removed in the future"
2718 --enable-?*|--disable-?*)
2719 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2720 if is_in $option $COMPONENT_LIST; then
2721 test $action = disable && action=unset
2722 eval $action \$$(toupper ${option%s})_LIST
2723 elif is_in $option $CMDLINE_SELECT; then
2730 NAME="${opt#--list-}"
2731 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2733 eval show_list $NAME \$$(toupper $NAME)_LIST
2735 --help|-h) show_help
2738 optname="${opt%%=*}"
2739 optname="${optname#--}"
2740 optname=$(echo "$optname" | sed 's/-/_/g')
2741 if is_in $optname $CMDLINE_SET; then
2742 eval $optname='$optval'
2743 elif is_in $optname $CMDLINE_APPEND; then
2744 append $optname "$optval"
2756 disabled logging && logfile=/dev/null
2758 # Disable all the library-specific components if the library itself
2759 # is disabled, see AVCODEC_LIST and following _LIST variables.
2761 disable_components(){
2762 disabled ${1} && disable $(
2763 eval components="\$$(toupper ${1})_COMPONENTS"
2764 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2768 map 'disable_components $v' $LIBRARY_LIST
2770 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2773 case "$toolchain" in
2775 cc_default="${toolchain%-asan}"
2776 add_cflags -fsanitize=address
2777 add_ldflags -fsanitize=address
2780 cc_default="${toolchain%-msan}"
2781 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2782 add_ldflags -fsanitize=memory
2785 cc_default="${toolchain%-tsan}"
2786 add_cflags -fsanitize=thread -pie
2787 add_ldflags -fsanitize=thread -pie
2788 case "$toolchain" in
2796 cc_default="${toolchain%-usan}"
2797 add_cflags -fsanitize=undefined
2798 add_ldflags -fsanitize=undefined
2799 case "$toolchain" in
2806 target_exec_default="valgrind"
2807 case "$toolchain" in
2809 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2812 target_exec_args="--track-origins=yes --leak-check=full"
2817 # Check whether the current MSVC version needs the C99 converter.
2818 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2819 # support enough of C99 to build libav. Default to the new
2820 # behaviour if the regexp was unable to match anything, since this
2821 # successfully parses the version number of existing supported
2822 # versions that require the converter (MSVC 2010 and 2012).
2823 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2824 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2827 cc_default="c99wrap cl"
2829 ld_default="$source_path/compat/windows/mslink"
2830 nm_default="dumpbin -symbols"
2837 target_os_default="win32"
2838 # Use a relative path for TMPDIR. This makes sure all the
2839 # ffconf temp files are written with a relative path, avoiding
2840 # issues with msys/win32 path conversion for MSVC parameters
2841 # such as -Fo<file> or -out:<file>.
2847 nm_default="dumpbin -symbols"
2849 target_os_default="win32"
2853 add_cflags -fprofile-arcs -ftest-coverage
2854 add_ldflags -fprofile-arcs -ftest-coverage
2857 add_cflags -fprofile-arcs -ftest-coverage
2858 add_ldflags --coverage
2861 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2862 add_cflags -fno-strict-overflow -fstack-protector-all
2863 add_ldflags -Wl,-z,relro -Wl,-z,now
2866 die "Unknown toolchain $toolchain"
2870 test -n "$cross_prefix" && enable cross_compile
2872 if enabled cross_compile; then
2873 test -n "$arch" && test -n "$target_os" ||
2874 die "Must specify target arch and OS when cross-compiling"
2877 ar_default="${cross_prefix}${ar_default}"
2878 cc_default="${cross_prefix}${cc_default}"
2879 occ_default="${cross_prefix}${occ_default}"
2880 nm_default="${cross_prefix}${nm_default}"
2881 pkg_config_default="${cross_prefix}${pkg_config_default}"
2882 ranlib="${cross_prefix}${ranlib}"
2883 strip="${cross_prefix}${strip}"
2885 sysinclude_default="${sysroot}/usr/include"
2887 set_default arch cc pkg_config sysinclude target_exec target_os
2888 enabled cross_compile || host_cc_default=$cc
2891 if ! $pkg_config --version >/dev/null 2>&1; then
2892 warn "$pkg_config not found, library detection may fail."
2898 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2902 EXESUF=$(exesuf $target_os)
2903 HOSTEXESUF=$(exesuf $host_os)
2905 # set temporary file name
2906 : ${TMPDIR:=$TEMPDIR}
2910 if ! check_cmd mktemp -u XXXXXX; then
2911 # simple replacement for missing mktemp
2912 # NOT SAFE FOR GENERAL USE
2914 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2919 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2920 (set -C; exec > $tmp) 2>/dev/null ||
2921 die "Unable to create temporary file in $TMPDIR."
2922 append TMPFILES $tmp
2926 trap 'rm -f -- $TMPFILES' EXIT
2930 tmpfile TMPE $EXESUF
2941 # make sure we can execute files in $TMPDIR
2942 cat > $TMPSH 2>> $logfile <<EOF
2945 chmod +x $TMPSH >> $logfile 2>&1
2946 if ! $TMPSH >> $logfile 2>&1; then
2948 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2949 variable to another directory and make sure that it is not mounted noexec.
2951 die "Sanity test failed."
2957 # Filter out MSVC cl.exe options from cflags that shouldn't
2958 # be passed to gas-preprocessor
2968 -std=c99) echo -c99 ;;
2969 -mcpu=*) echo -arch ${flag#*=} ;;
2970 -mieee) echo -ieee ;;
2971 -O*|-fast) echo $flag ;;
2972 -fno-math-errno) echo -assume nomath_errno ;;
2974 -Wall) echo -msg_enable level2 ;;
2975 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2976 -Wl,*) echo $flag ;;
2986 -Wno-switch) echo -Wno-switch-enum ;;
2987 -Wno-format-zero-length) ;;
2988 -Wdisabled-optimization) ;;
2989 -Wno-pointer-sign) echo -Wno-other ;;
2995 msvc_common_flags(){
2998 # In addition to specifying certain flags under the compiler
2999 # specific filters, they must be specified here as well or else the
3000 # generic catch all at the bottom will print the original flag.
3004 -fomit-frame-pointer) ;;
3008 -fno-signed-zeros) ;;
3012 -lz) echo zlib.lib ;;
3013 -lavifil32) echo vfw32.lib ;;
3014 -lavicap32) echo vfw32.lib user32.lib ;;
3015 -lx264) echo libx264.lib ;;
3016 -l*) echo ${flag#-l}.lib ;;
3017 -L*) echo -libpath:${flag#-L} ;;
3024 msvc_common_flags "$@"
3027 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3028 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3029 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3030 -wd4273 -wd4554 -wd4701 ;;
3036 msvc_common_flags "$@"
3039 # Despite what Intel's documentation says -Wall, which is supported
3040 # on Windows, does enable remarks so disable them here.
3041 -Wall) echo $flag -Qdiag-disable:remark ;;
3042 -std=c99) echo -Qstd=c99 ;;
3050 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3051 -fomit-frame-pointer) echo -Mnoframe ;;
3062 case "${flag#*=}" in
3063 native) echo -xtarget=native ;;
3064 v9|niagara) echo -xarch=sparc ;;
3065 ultrasparc) echo -xarch=sparcvis ;;
3066 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3067 i586|pentium) echo -xchip=pentium ;;
3068 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3069 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3070 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3071 pentium4*) echo -xtarget=pentium4 ;;
3072 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3073 *-sse3) echo -xarch=sse3 ;;
3074 core2) echo -xarch=ssse3 -xchip=core2 ;;
3075 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3076 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3077 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3078 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3079 k8|opteron|athlon64|athlon-fx)
3080 echo -xarch=sse2a ;;
3081 athlon*) echo -xarch=pentium_proa ;;
3084 -std=c99) echo -xc99 ;;
3085 -fomit-frame-pointer) echo -xregs=frameptr ;;
3086 -fPIC) echo -KPIC -xcode=pic32 ;;
3087 -W*,*) echo $flag ;;
3088 -f*-*|-W*|-mimpure-text) ;;
3099 case "${flag#*=}" in
3100 armv7-a|cortex-a*) echo -mv=7a8 ;;
3101 armv7-r|cortex-r*) echo -mv=7r4 ;;
3102 armv7-m|cortex-m*) echo -mv=7m3 ;;
3103 armv6*|arm11*) echo -mv=6 ;;
3104 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3106 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3109 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3110 -mfpu=vfp) echo --float_support=vfpv2 ;;
3111 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3112 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3113 -msoft-float) echo --float_support=vfplib ;;
3114 -O[0-3]|-mf=*) echo $flag ;;
3116 -pds=*) echo $flag ;;
3117 -D*|-I*) echo $flag ;;
3118 --gcc|--abi=*) echo $flag ;;
3128 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3129 unset _ld_o _ldflags _ld_lib _ld_path
3130 unset _depflags _DEPCMD _DEPFLAGS
3133 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3135 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3136 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3137 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3140 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3142 gcc_version=$($_cc --version | head -n1)
3143 gcc_basever=$($_cc -dumpversion)
3144 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3145 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3146 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3147 if ! $_cc -dumpversion | grep -q '^2\.'; then
3148 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3152 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3154 _ident=$($_cc --version | head -n1)
3159 elif $_cc -v 2>&1 | grep -q xlc; then
3161 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3163 _cflags_size='-O5 -qcompact'
3164 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3166 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3168 _cflags_speed='-fast'
3170 _flags_filter=ccc_flags
3171 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3172 test -d "$sysroot" || die "No valid sysroot specified."
3174 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3175 armcc_conf="$PWD/armcc.conf"
3176 $_cc --arm_linux_configure \
3177 --arm_linux_config_file="$armcc_conf" \
3178 --configure_sysroot="$sysroot" \
3179 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3180 die "Error creating armcc configuration file."
3181 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3182 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3183 as_default="${cross_prefix}gcc"
3187 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3189 _ident=$($_cc -version | head -n1 | tr -s ' ')
3190 _flags='--gcc --abi=eabi -me'
3193 _depflags='-ppa -ppd=$(@:.o=.d)'
3194 _cflags_speed='-O3 -mf=5'
3195 _cflags_size='-O3 -mf=2'
3196 _flags_filter=tms470_flags
3197 elif $_cc -v 2>&1 | grep -q clang; then
3199 _ident=$($_cc --version 2>/dev/null | head -n1)
3200 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3203 elif $_cc -V 2>&1 | grep -q Sun; then
3205 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3206 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3207 _DEPFLAGS='-xM1 -xc99'
3210 _cflags_size='-O5 -xspace'
3211 _flags_filter=suncc_flags
3212 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3214 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3215 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3218 _flags_filter='filter_out -Wdisabled-optimization'
3219 elif $_cc -v 2>&1 | grep -q Open64; then
3221 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3222 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3225 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3226 elif $_cc -V 2>&1 | grep -q Portland; then
3228 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3229 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3230 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3231 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3233 _flags_filter=pgi_flags
3234 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3236 _ident=$($_cc | head -n1)
3237 # 4509: "This form of conditional instruction is deprecated"
3238 _flags="-nologo -ignore 4509"
3239 _flags_filter=armasm_flags
3240 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3242 _ident=$($_cc 2>&1 | head -n1)
3243 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3244 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3247 if $_cc -nologo- 2>&1 | grep -q Linker; then
3254 _flags_filter=msvc_flags
3256 _ld_path='-libpath:'
3258 elif $_cc 2>&1 | grep -q Intel; then
3260 _ident=$($_cc 2>&1 | head -n1)
3261 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3262 # Not only is O3 broken on 13.x+ but it is slower on all previous
3263 # versions (tested) as well.
3265 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3266 if $_cc 2>&1 | grep -q Linker; then
3273 _flags_filter=icl_flags
3275 _ld_path='-libpath:'
3276 # -Qdiag-error to make icl error when seeing certain unknown arguments
3277 _flags='-nologo -Qdiag-error:4044,10157'
3278 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3279 # with MSVC which enables it by default.
3280 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3281 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3282 # lld can emulate multiple different linkers; in ms link.exe mode,
3283 # the -? parameter gives the help output which contains an identifyable
3284 # string, while it gives an error in other modes.
3286 # The link.exe mode doesn't have a switch for getting the version,
3287 # but we can force it back to gnu mode and get the version from there.
3288 _ident=$($_cc -flavor gnu --version)
3290 _flags_filter=msvc_flags
3292 _ld_path='-libpath:'
3293 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3295 _ident=$($_cc --version | head -n1)
3299 _flags_filter=cparser_flags
3302 eval ${pfx}_type=\$_type
3303 eval ${pfx}_ident=\$_ident
3307 eval ${1}_C=\${_cc_c-\${${1}_C}}
3308 eval ${1}_E=\${_cc_e-\${${1}_E}}
3309 eval ${1}_O=\${_cc_o-\${${1}_O}}
3311 if [ -n "$_depflags" ]; then
3312 eval ${1}_DEPFLAGS=\$_depflags
3314 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3315 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3316 eval DEP${1}FLAGS=\$_flags
3321 cflags_filter=$_flags_filter
3322 cflags_speed=$_cflags_speed
3323 cflags_size=$_cflags_size
3324 cflags_noopt=$_cflags_noopt
3325 add_cflags $_flags $_cflags
3326 cc_ldflags=$_ldflags
3329 probe_cc hostcc "$host_cc"
3330 host_cflags_filter=$_flags_filter
3331 add_host_cflags $_flags $_cflags
3334 test -n "$cc_type" && enable $cc_type ||
3335 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3337 : ${as_default:=$cc}
3338 : ${objcc_default:=$cc}
3339 : ${dep_cc_default:=$cc}
3340 : ${ld_default:=$cc}
3341 : ${host_ld_default:=$host_cc}
3342 set_default ar as objcc dep_cc ld host_ld
3345 asflags_filter=$_flags_filter
3346 add_asflags $_flags $_cflags
3349 probe_cc objcc "$objcc"
3350 objcflags_filter=$_flags_filter
3351 add_objcflags $_flags $_cflags
3355 ldflags_filter=$_flags_filter
3356 add_ldflags $_flags $_ldflags
3357 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3359 LD_LIB=${_ld_lib-$LD_LIB}
3360 LD_PATH=${_ld_path-$LD_PATH}
3362 probe_cc hostld "$host_ld"
3363 host_ldflags_filter=$_flags_filter
3364 add_host_ldflags $_flags $_ldflags
3365 HOSTLD_O=${_ld_o-$HOSTLD_O}
3367 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3368 probe_cc depcc "$dep_cc"
3369 CCDEP=${_DEPCMD:-$DEPCMD}
3370 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3374 if $ar 2>&1 | grep -q Microsoft; then
3377 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3380 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3381 arflags='-Xany -r -c'
3388 add_cflags $extra_cflags
3389 add_objcflags $extra_objcflags
3390 add_asflags $extra_cflags
3392 if test -n "$sysroot"; then
3395 add_cppflags --sysroot="$sysroot"
3396 add_ldflags --sysroot="$sysroot"
3399 add_cppflags -I"$sysinclude"
3400 add_ldflags --sysroot="$sysroot"
3405 if test "$cpu" = host; then
3406 enabled cross_compile &&
3407 die "--cpu=host makes no sense when cross-compiling."
3412 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3414 s/.*$1=\\([^ ]*\\).*/\\1/
3419 cpu=$(check_native -march || check_native -mcpu)
3423 test "${cpu:-host}" = host &&
3424 die "--cpu=host not supported with compiler $cc"
3427 # Deal with common $arch aliases
3451 "Power Macintosh"|ppc*|powerpc*)
3466 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3471 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3474 # Add processor-specific flags
3475 if enabled aarch64; then
3479 cpuflags="-march=$cpu"
3482 cpuflags="-mcpu=$cpu"
3486 elif enabled alpha; then
3488 cpuflags="-mcpu=$cpu"
3490 elif enabled arm; then
3493 check_cpp_condition stddef.h \
3494 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3499 if check_arm_arch 4; then echo armv4
3500 elif check_arm_arch 4T; then echo armv4t
3501 elif check_arm_arch 5; then echo armv5
3502 elif check_arm_arch 5E; then echo armv5e
3503 elif check_arm_arch 5T; then echo armv5t
3504 elif check_arm_arch 5TE; then echo armv5te
3505 elif check_arm_arch 5TEJ; then echo armv5te
3506 elif check_arm_arch 6; then echo armv6
3507 elif check_arm_arch 6J; then echo armv6j
3508 elif check_arm_arch 6K; then echo armv6k
3509 elif check_arm_arch 6Z; then echo armv6z
3510 elif check_arm_arch 6ZK; then echo armv6zk
3511 elif check_arm_arch 6T2; then echo armv6t2
3512 elif check_arm_arch 7; then echo armv7
3513 elif check_arm_arch 7A 7_A; then echo armv7-a
3514 elif check_arm_arch 7S; then echo armv7-a
3515 elif check_arm_arch 7R 7_R; then echo armv7-r
3516 elif check_arm_arch 7M 7_M; then echo armv7-m
3517 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3518 elif check_arm_arch 8A 8_A; then echo armv8-a
3522 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3526 cpuflags="-march=$cpu"
3527 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3530 cpuflags="-mcpu=$cpu"
3532 cortex-a*) subarch=armv7a ;;
3533 cortex-r*) subarch=armv7r ;;
3534 cortex-m*) enable thumb; subarch=armv7m ;;
3535 arm11*) subarch=armv6 ;;
3536 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3537 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3538 *) subarch=$(probe_arm_arch) ;;
3544 armv5t*) enable fast_clz ;;
3545 armv[6-8]*) enable fast_clz fast_unaligned ;;
3548 elif enabled avr32; then
3553 cpuflags="-mpart=$cpu"
3557 cpuflags="-march=$cpu"
3561 cpuflags="-mcpu=$cpu"
3565 cpuflags="-march=$cpu"
3569 elif enabled bfin; then
3571 cpuflags="-mcpu=$cpu"
3573 elif enabled mips; then
3575 cpuflags="-march=$cpu"
3577 elif enabled ppc; then
3581 case $(tolower $cpu) in
3582 601|ppc601|powerpc601)
3583 cpuflags="-mcpu=601"
3586 603*|ppc603*|powerpc603*)
3587 cpuflags="-mcpu=603"
3590 604*|ppc604*|powerpc604*)
3591 cpuflags="-mcpu=604"
3594 g3|75*|ppc75*|powerpc75*)
3595 cpuflags="-mcpu=750"
3598 g4|745*|ppc745*|powerpc745*)
3599 cpuflags="-mcpu=7450"
3602 74*|ppc74*|powerpc74*)
3603 cpuflags="-mcpu=7400"
3606 g5|970|ppc970|powerpc970)
3607 cpuflags="-mcpu=970"
3611 cpuflags="-mcpu=$cpu"
3615 cpuflags="-mcpu=$cpu"
3619 cpuflags="-mcpu=cell"
3624 cpuflags="-mcpu=e500mc"
3628 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3633 cpuflags="-mcpu=8540 -mhard-float"
3639 elif enabled sparc; then
3642 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3643 cpuflags="-mcpu=$cpu"
3645 ultrasparc*|niagara[234])
3646 cpuflags="-mcpu=$cpu"
3650 elif enabled x86; then
3654 cpuflags="-march=$cpu"
3658 # targets that do NOT support nopl and conditional mov (cmov)
3659 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3660 cpuflags="-march=$cpu"
3663 # targets that do support nopl and conditional mov (cmov)
3664 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3665 cpuflags="-march=$cpu"
3669 # targets that do support conditional mov but on which it's slow
3670 pentium4|pentium4m|prescott|nocona)
3671 cpuflags="-march=$cpu"
3679 if [ "$cpu" != generic ]; then
3680 add_cflags $cpuflags
3681 add_asflags $cpuflags
3682 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3685 # compiler sanity check
3687 int main(void){ return 0; }
3689 if test "$?" != 0; then
3690 echo "$cc is unable to create an executable file."
3691 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3692 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3693 echo "Only do this if you know what cross compiling means."
3695 die "C compiler test failed."
3698 add_cppflags -D_ISOC99_SOURCE
3700 # some compilers silently accept -std=c11, so we also need to check that the
3701 # version macro is defined properly
3702 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3705 check_cflags -std=c99
3708 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3711 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3715 add_host_cppflags -D_ISOC99_SOURCE
3716 check_host_cflags -std=c99
3717 check_host_cflags -Wall
3718 check_host_cflags -O3
3724 check_code cc "" "int test[2*($expr) - 1]" &&
3725 subarch=$arch64 || subarch=$arch32
3733 check_64bit mips mips64 '_MIPS_SIM > 1'
3737 check_64bit parisc parisc64 'sizeof(void *) > 4'
3741 check_64bit ppc ppc64 'sizeof(void *) > 4'
3745 check_64bit s390 s390x 'sizeof(void *) > 4'
3749 check_64bit sparc sparc64 'sizeof(void *) > 4'
3753 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3754 if test "$subarch" = "x86_64"; then
3761 enabled spic && enable_weak pic
3767 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3768 enabled shared && add_ldflags -Wl,-brtl
3772 enable section_data_rel_ro
3773 SLIB_INSTALL_NAME='$(SLIBNAME)'
3775 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3778 prefix_default="/boot/common"
3779 network_extralibs="-lnetwork"
3783 SHFLAGS='-shared -Wl,-h,$$(@F)'
3784 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3785 network_extralibs="-lsocket -lnsl"
3786 # When using suncc to build, the Solaris linker will mark
3787 # an executable with each instruction set encountered by
3788 # the Solaris assembler. As our libraries contain their own
3789 # guards for processor-specific code, instead suppress
3790 # generation of the HWCAPS ELF section on Solaris x86 only.
3791 enabled_all suncc x86 &&
3792 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3793 add_ldflags -Wl,-M,mapfile
3794 nm_default='nm -P -g'
3796 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3800 oss_indev_extralibs="-lossaudio"
3801 oss_outdev_extralibs="-lossaudio"
3806 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3808 oss_indev_extralibs="-lossaudio"
3809 oss_outdev_extralibs="-lossaudio"
3817 add_extralibs -lpoll -lgnugetopt
3820 enabled ppc && add_asflags -force_cpusubtype_ALL
3821 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3822 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3823 add_ldflags -Wl,-dynamic,-search_paths_first
3825 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3826 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3828 enabled x86_64 && objformat="macho64"
3829 enabled_any pic shared ||
3830 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3831 check_header dispatch/dispatch.h &&
3832 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3835 die "Native MSYS builds are discouraged, please use the MINGW environment."
3838 if test $target_os = "mingw32ce"; then
3844 if enabled x86_64; then
3845 LIBTARGET="i386:x86-64"
3846 elif enabled arm; then
3849 check_ldflags -Wl,--nxcompat
3850 check_ldflags -Wl,--dynamicbase
3851 shlibdir_default="$bindir_default"
3854 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3855 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3856 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3857 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3859 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3860 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3861 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3863 dlltool="${cross_prefix}dlltool"
3869 if enabled shared; then
3870 # Link to the import library instead of the normal static library
3873 # Cannot build both shared and static libs with MSVC or icl.
3876 shlibdir_default="$bindir_default"
3879 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3880 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3881 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3882 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3884 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3885 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3886 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3893 shlibdir_default="$bindir_default"
3896 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3897 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3898 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3900 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3901 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3905 *-dos|freedos|opendos)
3906 network_extralibs="-lsocket"
3909 add_cppflags -U__STRICT_ANSI__
3913 enable section_data_rel_ro
3917 ranlib="echo ignoring ranlib"
3922 add_cppflags -D_GNU_SOURCE
3923 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3924 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3928 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3929 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3930 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3931 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3932 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3933 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3934 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3935 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3936 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3937 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3941 add_cppflags -D_BSD_SOURCE
3946 add_cppflags -D_QNX_SOURCE
3947 network_extralibs="-lsocket"
3952 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3953 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3954 add_ldflags -Wl,--target1-abs,--no-undefined \
3955 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3956 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3957 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3958 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3959 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3962 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3967 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3968 -D_REENTRANT_SOURCE \
3969 -D_RESEARCH_SOURCE \
3972 add_compat strtod.o strtod=avpriv_strtod
3973 network_extralibs='-lbsd'
3974 exeobjs=compat/plan9/main.o
3980 die "Unknown OS '$target_os'."
3984 # determine libc flavour
3989 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3990 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3991 eval ${pfx}libc_type=uclibc
3992 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3993 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3994 eval ${pfx}libc_type=glibc
3995 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3996 # MinGW headers can be installed on Cygwin, so check for newlib first.
3997 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3998 eval ${pfx}libc_type=newlib
3999 add_${pfx}cppflags -U__STRICT_ANSI__
4000 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4001 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4002 eval ${pfx}libc_type=mingw64
4003 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4004 eval test \$${pfx_no_}cc_type = "gcc" &&
4005 add_${pfx}cppflags -D__printf__=__gnu_printf__
4006 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4007 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4008 eval ${pfx}libc_type=mingw32
4009 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4010 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4011 die "ERROR: MinGW32 runtime version must be >= 3.15."
4012 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4013 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4014 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4015 eval test \$${pfx_no_}cc_type = "gcc" &&
4016 add_${pfx}cppflags -D__printf__=__gnu_printf__
4017 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4018 eval ${pfx}libc_type=msvcrt
4019 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4020 if [ "$pfx" = host_ ]; then
4021 add_host_cppflags -Dsnprintf=_snprintf
4023 add_compat strtod.o strtod=avpriv_strtod
4024 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4025 _snprintf=avpriv_snprintf \
4026 vsnprintf=avpriv_vsnprintf
4029 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4030 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4031 # 0x601 by default unless something else is set by the user.
4032 # This can easily lead to us detecting functions only present
4033 # in such new versions and producing binaries requiring windows 7.0.
4034 # Therefore explicitly set the default to XP unless the user has
4035 # set something else on the command line.
4036 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4037 # family. For these cases, configure is free to use any functions
4038 # found in the SDK headers by default. (Alternatively, we could force
4039 # _WIN32_WINNT to 0x0602 in that case.)
4040 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4041 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4042 #ifdef WINAPI_FAMILY
4043 #include <winapifamily.h>
4044 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4049 if [ "$pfx" = "" ]; then
4050 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4052 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4053 eval ${pfx}libc_type=klibc
4054 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4055 eval ${pfx}libc_type=bionic
4056 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4057 eval ${pfx}libc_type=solaris
4058 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4060 eval ${pfx}libc_type=default
4061 add_${pfx}cppflags -D_DEFAULT_SOURCE
4066 test -n "$libc_type" && enable libc_$libc_type
4068 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4072 add_compat strtod.o strtod=avpriv_strtod
4076 # hacks for compiler/libc/os combinations
4078 if enabled_all tms470 libc_glibc; then
4079 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4080 add_cppflags -D__USER_LABEL_PREFIX__=
4081 add_cppflags -D__builtin_memset=memset
4082 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4083 add_cflags -pds=48 # incompatible redefinition of macro
4086 if enabled_all ccc libc_glibc; then
4087 add_ldflags -Wl,-z,now # calls to libots crash without this
4090 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4091 add_cppflags '-I\$(SRC_PATH)/compat/float'
4094 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4097 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4099 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4101 set_default $PATHS_LIST
4104 # we need to build at least one lib type
4105 if ! enabled_any static shared; then
4107 At least one library type must be built.
4108 Specify --enable-static to build the static libraries or --enable-shared to
4109 build the shared libraries as well. To only build the shared libraries specify
4110 --disable-static in addition to --enable-shared.
4115 die_license_disabled() {
4116 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4119 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
4120 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
4121 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
4123 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4125 disabled optimizations || check_cflags -fomit-frame-pointer
4128 disabled pic && return
4131 case "$target_os" in
4141 enabled pic && enable_weak_pic
4143 check_cc <<EOF || die "Symbol mangling check failed."
4146 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4147 extern_prefix=${sym%%ff_extern*}
4149 check_cc <<EOF && enable_weak inline_asm
4150 void foo(void) { __asm__ volatile ("" ::); }
4154 for restrict_keyword in restrict __restrict__ __restrict; do
4155 check_cc <<EOF && _restrict=$restrict_keyword && break
4156 void foo(char * $restrict_keyword p);
4160 check_cc <<EOF && enable pragma_deprecated
4161 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4164 check_cc <<EOF && enable attribute_packed
4165 struct { int x; } __attribute__((packed)) x;
4168 check_cc <<EOF && enable attribute_may_alias
4169 union { int x; } __attribute__((may_alias)) x;
4172 check_cc <<EOF || die "endian test failed"
4173 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4175 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4178 log "check_gas using '$as' as AS"
4179 # :vararg is used on aarch64, arm and ppc altivec
4180 check_as <<EOF || return 1
4181 .macro m n, y:vararg=0
4186 # .altmacro is only used in arm asm
4187 ! enabled arm || check_as <<EOF || return 1
4194 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4196 enabled_any arm aarch64 && nogas=die
4197 enabled_all ppc altivec && nogas=warn
4201 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4202 gcc) gaspp_as_type=gas ;;
4203 *) gaspp_as_type=$as_type ;;
4206 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4208 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4209 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4211 if ! check_gas ; then
4214 $nogas "GNU assembler not found, install/update gas-preprocessor"
4217 check_as <<EOF && enable as_func
4223 check_inline_asm inline_asm_labels '"1:\n"'
4225 if enabled aarch64; then
4226 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4227 # internal assembler in clang 3.3 does not support this instruction
4228 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4229 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4231 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4233 elif enabled alpha; then
4237 elif enabled arm; then
4239 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4240 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4241 enabled thumb && check_cflags -mthumb || check_cflags -marm
4243 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4245 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4247 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4248 case "${cross_prefix:-$cc}" in
4249 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4250 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4251 __asm__ (".eabi_attribute 28, 1");
4252 int main(void) { return 0; }
4255 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4258 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4259 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4260 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4261 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4262 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4263 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4265 [ $target_os = linux ] || [ $target_os = android ] ||
4266 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4269 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4271 check_as <<EOF && enable as_dn_directive
4275 check_as <<EOF && enable as_fpu_directive
4279 # llvm's integrated assembler supports .object_arch from llvm 3.5
4280 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4284 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4286 elif enabled mips; then
4288 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4290 # make sure that only an instruction set is enabled
4291 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4293 if enabled mips64; then
4294 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4295 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4296 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4298 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4299 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4300 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4303 elif enabled parisc; then
4305 if enabled gcc; then
4306 case $($cc -dumpversion) in
4307 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4311 elif enabled ppc; then
4313 enable local_aligned_8 local_aligned_16 local_aligned_32
4315 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4316 check_inline_asm ibm_asm '"add 0, 0, 0"'
4317 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4318 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4320 # AltiVec flags: The FSF version of GCC differs from the Apple version
4321 if enabled altivec; then
4322 check_cflags -maltivec -mabi=altivec &&
4323 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4324 check_cflags -faltivec
4326 # check if our compiler supports Motorola AltiVec C API
4327 check_cc <<EOF || disable altivec
4330 vector signed int v1 = (vector signed int) { 0 };
4331 vector signed int v2 = (vector signed int) { 1 };
4332 v1 = vec_add(v1, v2);
4337 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4340 if enabled vsx; then
4341 check_cflags -mvsx &&
4342 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4345 if enabled power8; then
4346 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4349 elif enabled x86; then
4351 check_builtin rdtsc intrin.h "__rdtsc()"
4352 check_builtin mm_empty mmintrin.h "_mm_empty()"
4354 enable local_aligned_8 local_aligned_16 local_aligned_32
4356 # check whether EBP is available on x86
4357 # As 'i' is stored on the stack, this program will crash
4358 # if the base pointer is used to access it because the
4359 # base pointer is cleared in the inline assembly code.
4360 check_exec_crash <<EOF && enable ebp_available
4362 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4366 # check whether EBX is available on x86
4367 check_inline_asm ebx_available '""::"b"(0)' &&
4368 check_inline_asm ebx_available '"":::"%ebx"'
4370 # check whether xmm clobbers are supported
4371 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4373 # check whether binutils is new enough to compile SSSE3/MMXEXT
4374 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4375 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4377 if ! disabled_any asm mmx yasm; then
4378 if check_cmd $yasmexe --version; then
4379 enabled x86_64 && yasm_extra="-m amd64"
4380 yasm_debug="-g dwarf2"
4381 elif check_cmd nasm -v; then
4383 yasm_debug="-g -F dwarf"
4384 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4387 YASMFLAGS="-f $objformat $yasm_extra"
4388 enabled pic && append YASMFLAGS "-DPIC"
4389 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4390 case "$objformat" in
4391 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4394 check_yasm "movbe ecx, [5]" && enable yasm ||
4395 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4396 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4397 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4398 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4399 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4400 check_yasm "CPU amdnop" || disable cpunop
4404 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4411 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4413 check_ldflags -Wl,--as-needed
4415 if check_func dlopen; then
4417 elif check_func dlopen -ldl; then
4421 if ! disabled network; then
4422 check_func getaddrinfo $network_extralibs
4423 check_func inet_aton $network_extralibs
4425 check_type netdb.h "struct addrinfo"
4426 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4427 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4428 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4429 check_type poll.h "struct pollfd"
4430 check_type netinet/sctp.h "struct sctp_event_subscribe"
4431 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4432 check_type netinet/in.h "struct sockaddr_in6"
4433 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4434 check_type "sys/types.h sys/socket.h" socklen_t
4436 # Prefer arpa/inet.h over winsock2
4437 if check_header arpa/inet.h ; then
4438 check_func closesocket
4439 elif check_header winsock2.h ; then
4440 check_func_headers winsock2.h closesocket -lws2 &&
4441 network_extralibs="-lws2" ||
4442 { check_func_headers winsock2.h closesocket -lws2_32 &&
4443 network_extralibs="-lws2_32"; } || disable winsock2_h network
4444 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4446 check_type ws2tcpip.h socklen_t
4447 check_type ws2tcpip.h "struct addrinfo"
4448 check_type ws2tcpip.h "struct group_source_req"
4449 check_type ws2tcpip.h "struct ip_mreq_source"
4450 check_type ws2tcpip.h "struct ipv6_mreq"
4451 check_type winsock2.h "struct pollfd"
4452 check_struct winsock2.h "struct sockaddr" sa_len
4453 check_type ws2tcpip.h "struct sockaddr_in6"
4454 check_type ws2tcpip.h "struct sockaddr_storage"
4460 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4461 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4462 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4463 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4465 case "$custom_allocator" in
4467 # jemalloc by default does not use a prefix
4468 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4471 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4476 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4477 check_func ${malloc_prefix}memalign && enable memalign
4478 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4480 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4481 check_func_headers time.h clock_gettime ||
4482 { check_lib time.h clock_gettime -lrt && LIBRT="-lrt"; }
4486 check_func gethrtime
4488 check_func getrusage
4489 check_func gettimeofday
4492 check_func localtime_r
4493 check_func mach_absolute_time
4497 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4498 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4499 check_func sched_getaffinity
4500 check_func setrlimit
4501 check_func strerror_r
4506 check_func_headers io.h setmode
4507 check_func_headers stdlib.h getenv
4509 check_func_headers windows.h CoTaskMemFree -lole32
4510 check_func_headers windows.h GetProcessAffinityMask
4511 check_func_headers windows.h GetProcessTimes
4512 check_func_headers windows.h GetSystemTimeAsFileTime
4513 check_func_headers windows.h LoadLibrary
4514 check_func_headers windows.h MapViewOfFile
4515 check_func_headers windows.h SetConsoleTextAttribute
4516 check_func_headers windows.h Sleep
4517 check_func_headers windows.h VirtualAlloc
4518 check_struct windows.h "CONDITION_VARIABLE" Ptr
4520 check_header direct.h
4521 check_header dlfcn.h
4522 check_header d3d11.h
4524 check_header dxva2api.h
4526 check_header mach/mach_time.h
4527 check_header malloc.h
4529 check_header sys/mman.h
4530 check_header sys/param.h
4531 check_header sys/resource.h
4532 check_header sys/select.h
4533 check_header sys/time.h
4534 check_header sys/un.h
4535 check_header unistd.h
4536 check_header valgrind/valgrind.h
4537 check_header vdpau/vdpau.h
4538 check_header vdpau/vdpau_x11.h
4539 check_header VideoDecodeAcceleration/VDADecoder.h
4540 check_header windows.h
4541 check_header X11/extensions/XvMClib.h
4543 # it seems there are versions of clang in some distros that try to use the
4544 # gcc headers, which explodes for stdatomic
4545 # so we also check that atomics actually work here
4546 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4548 check_lib "windows.h shellapi.h" CommandLineToArgvW -lshell32
4549 check_lib "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4550 check_lib "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4552 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4554 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4555 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4556 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4558 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4559 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4560 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4561 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4562 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4564 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4566 if ! disabled w32threads && ! enabled pthreads; then
4567 check_func_headers "windows.h process.h" _beginthreadex &&
4568 enable w32threads || disable w32threads
4571 # check for some common methods of building with pthread support
4572 # do this before the optional library checks as some of them require pthreads
4573 if ! disabled pthreads && ! enabled w32threads; then
4575 if check_func pthread_join -pthread; then
4577 add_extralibs -pthread
4578 elif check_func pthread_join -pthreads; then
4579 add_cflags -pthreads
4580 add_extralibs -pthreads
4581 elif check_func pthread_join -lpthreadGC2; then
4582 add_extralibs -lpthreadGC2
4583 elif check_lib pthread.h pthread_join -lpthread; then
4585 elif ! check_func pthread_join; then
4591 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
4593 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4594 disabled bzlib || check_lib bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4596 check_lib math.h sin -lm && LIBM="-lm"
4602 for func in $MATH_FUNCS; do
4603 eval check_mathfunc $func \${${func}_args:-1}
4606 # these are off by default, so fail if requested and not available
4607 enabled avisynth && { check_lib "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4608 check_lib "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4609 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4610 enabled cuda && check_lib cuda.h cuInit -lcuda
4611 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4612 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4613 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4614 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4615 enabled libfaac && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4616 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4617 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4618 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4619 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4620 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4621 done || die "ERROR: libgsm not found"; }
4622 enabled libhdcd && require_pkg_config libhdcd "hdcd/hdcd_simple.h" hdcd_new
4623 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4624 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4625 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4626 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4627 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4628 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4629 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4630 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4631 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4632 enabled libopenjpeg && { check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4633 require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4634 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4635 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4636 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4637 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4638 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4639 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4640 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4641 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4642 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4643 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4644 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4645 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4646 enabled libvpx_vp8_decoder && {
4647 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4648 disable libvpx_vp8_decoder;
4650 enabled libvpx_vp8_encoder && {
4651 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4652 disable libvpx_vp8_encoder;
4654 enabled libvpx_vp9_decoder && {
4655 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4656 disable libvpx_vp9_decoder;
4658 enabled libvpx_vp9_encoder && {
4659 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4660 disable libvpx_vp9_encoder;
4662 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4663 die "libvpx enabled but no supported decoders found"
4666 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4667 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4668 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4669 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4670 die "ERROR: libx264 version must be >= 0.118."; } &&
4671 { check_cpp_condition x264.h "X264_MPEG2" &&
4673 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4674 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4675 die "ERROR: libx265 version must be >= 57."; }
4676 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4677 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4678 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4679 { ! enabled cross_compile && {
4680 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4681 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4682 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4683 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4684 die "ERROR: mmal not found"; }
4685 enabled mmal && check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"
4686 enabled omx_rpi && enable omx
4687 enabled omx && { check_header OMX_Core.h ||
4688 { ! enabled cross_compile && enabled omx_rpi && {
4689 add_cflags -isystem/opt/vc/include/IL ; }
4690 check_header OMX_Core.h ; } ||
4691 die "ERROR: OpenMAX IL headers not found"; }
4692 enabled openssl && { check_pkg_config openssl openssl/ssl.h SSL_library_init && {
4693 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4694 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4695 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4696 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4697 die "ERROR: openssl not found"; }
4699 if enabled gnutls; then
4700 { check_lib gmp.h mpz_export -lgmp && enable gmp; } ||
4701 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4705 if enabled libdc1394; then
4706 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4707 enable libdc1394_2; } ||
4708 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4709 enable libdc1394_1; } ||
4710 die "ERROR: No version of libdc1394 found "
4713 if enabled nvenc; then
4714 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."
4715 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
4716 die "ERROR: NVENC API version 5 or older is not supported"
4719 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4720 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4721 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4725 ! disabled pod2man && check_cmd pod2man --help && enable pod2man || disable pod2man
4726 ! disabled texi2html && check_cmd texi2html -version && enable texi2html || disable texi2html
4728 check_header linux/fb.h
4729 check_header linux/videodev2.h
4730 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4732 check_header AVFoundation/AVFoundation.h &&
4733 check_objcflags -fobjc-arc &&
4734 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4735 disable AVFoundation_AVFoundation_h
4737 check_header sys/videoio.h
4739 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4740 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4741 # w32api 3.12 had it defined wrong
4742 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4744 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4745 { check_header dev/bktr/ioctl_meteor.h &&
4746 check_header dev/bktr/ioctl_bt848.h; } ||
4747 { check_header machine/ioctl_meteor.h &&
4748 check_header machine/ioctl_bt848.h; } ||
4749 { check_header dev/video/meteor/ioctl_meteor.h &&
4750 check_header dev/video/bktr/ioctl_bt848.h; } ||
4751 check_header dev/ic/bt8xx.h
4753 check_header sndio.h
4754 check_header sys/soundcard.h
4755 check_header soundcard.h
4757 enabled_any alsa_indev alsa_outdev &&
4758 check_lib alsa/asoundlib.h snd_pcm_htimestamp -lasound
4760 enabled jack_indev && check_lib jack/jack.h jack_client_open -ljack &&
4761 check_func jack_port_get_latency_range -ljack
4763 enabled_any sndio_indev sndio_outdev && check_lib sndio.h sio_open -lsndio
4765 if enabled libcdio; then
4766 check_lib "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4767 check_lib "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4768 die "ERROR: No usable libcdio/cdparanoia found"
4771 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4773 if enabled libxcb; then
4774 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4775 enabled libxcb && die "ERROR: libxcb not found";
4778 disabled libxcb_shm ||
4779 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4780 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4781 } && check_header sys/shm.h && enable libxcb_shm
4783 disabled libxcb_xfixes ||
4784 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4785 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4786 } && enable libxcb_xfixes
4788 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4789 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4792 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4795 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4798 if enabled vaapi ; then
4800 check_lib "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4803 check_lib "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
4808 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4811 enabled vdpau && enabled xlib &&
4812 check_lib "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4815 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4817 # add some useful compiler flags if supported
4818 check_cflags -Wdeclaration-after-statement
4820 check_cflags -Wdisabled-optimization
4821 check_cflags -Wpointer-arith
4822 check_cflags -Wredundant-decls
4823 check_cflags -Wwrite-strings
4824 check_cflags -Wtype-limits
4825 check_cflags -Wundef
4826 check_cflags -Wmissing-prototypes
4827 check_cflags -Wstrict-prototypes
4828 enabled extra_warnings && check_cflags -Winline
4829 enabled extra_warnings && check_cflags -Wcast-qual
4831 check_disable_warning(){
4832 warning_flag=-W${1#-Wno-}
4833 test_cflags $warning_flag && add_cflags $1
4836 check_disable_warning -Wno-parentheses
4837 check_disable_warning -Wno-switch
4838 check_disable_warning -Wno-format-zero-length
4839 check_disable_warning -Wno-pointer-sign
4841 # add some linker flags
4842 check_ldflags -Wl,--warn-common
4843 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4844 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4845 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4847 # add some strip flags
4848 # -wN '..@*' is more selective than -x, but not available everywhere.
4849 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4851 enabled neon_clobber_test &&
4852 check_ldflags -Wl,--wrap,avcodec_open2 \
4853 -Wl,--wrap,avcodec_decode_audio4 \
4854 -Wl,--wrap,avcodec_decode_video2 \
4855 -Wl,--wrap,avcodec_decode_subtitle2 \
4856 -Wl,--wrap,avcodec_encode_audio2 \
4857 -Wl,--wrap,avcodec_encode_video2 \
4858 -Wl,--wrap,avcodec_encode_subtitle \
4859 -Wl,--wrap,avcodec_send_packet \
4860 -Wl,--wrap,avcodec_receive_packet \
4861 -Wl,--wrap,avcodec_send_frame \
4862 -Wl,--wrap,avcodec_receive_frame \
4863 -Wl,--wrap,avresample_convert ||
4864 disable neon_clobber_test
4866 enabled xmm_clobber_test &&
4867 check_ldflags -Wl,--wrap,avcodec_open2 \
4868 -Wl,--wrap,avcodec_decode_audio4 \
4869 -Wl,--wrap,avcodec_decode_video2 \
4870 -Wl,--wrap,avcodec_decode_subtitle2 \
4871 -Wl,--wrap,avcodec_encode_audio2 \
4872 -Wl,--wrap,avcodec_encode_video2 \
4873 -Wl,--wrap,avcodec_encode_subtitle \
4874 -Wl,--wrap,avcodec_send_packet \
4875 -Wl,--wrap,avcodec_receive_packet \
4876 -Wl,--wrap,avcodec_send_frame \
4877 -Wl,--wrap,avcodec_receive_frame \
4878 -Wl,--wrap,avresample_convert \
4879 -Wl,--wrap,sws_scale ||
4880 disable xmm_clobber_test
4882 check_ld <<EOF && enable proper_dce
4883 extern const int array[512];
4884 static inline int func(void) { return array[0]; }
4885 int main(void) { return 0; }
4888 if enabled proper_dce; then
4889 echo "X { local: *; };" > $TMPV
4890 if test_ldflags -Wl,${version_script},$TMPV; then
4891 append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
4892 check_cc <<EOF && enable symver_asm_label
4893 void ff_foo(void) __asm__ ("av_foo@VERSION");
4894 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4896 check_cc <<EOF && enable symver_gnu_asm
4897 __asm__(".symver ff_foo,av_foo@VERSION");
4898 void ff_foo(void) {}
4903 if [ -z "$optflags" ]; then
4904 if enabled small; then
4905 optflags=$cflags_size
4906 elif enabled optimizations; then
4907 optflags=$cflags_speed
4909 optflags=$cflags_noopt
4915 enabled lto && check_ldflags "$@"
4919 if enabled lto; then
4920 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4922 check_ldflags -flto $cpuflags
4925 check_optflags $optflags
4926 check_optflags -fno-math-errno
4927 check_optflags -fno-signed-zeros
4929 if enabled icc; then
4930 # Just warnings, no remarks
4932 # -wd: Disable following warnings
4933 # 144, 167, 556: -Wno-pointer-sign
4934 # 1292: attribute "foo" ignored
4935 # 1419: external declaration in primary source file
4936 # 10006: ignoring unknown option -fno-signed-zeros
4937 # 10148: ignoring unknown option -Wno-parentheses
4938 # 10156: ignoring option '-W'; no argument required
4939 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4940 # 11030: Warning unknown option --as-needed
4941 # 10156: ignoring option '-export'; no argument required
4942 check_ldflags -wd10156,11030
4943 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4944 enable ebp_available
4945 if enabled x86_32; then
4946 icc_version=$($cc -dumpversion)
4947 test ${icc_version%%.*} -ge 11 &&
4948 check_cflags -falign-stack=maintain-16-byte ||
4949 disable aligned_stack
4951 elif enabled ccc; then
4952 # disable some annoying warnings
4953 add_cflags -msg_disable bitnotint
4954 add_cflags -msg_disable mixfuncvoid
4955 add_cflags -msg_disable nonstandcast
4956 add_cflags -msg_disable unsupieee
4957 elif enabled gcc; then
4958 check_optflags -fno-tree-vectorize
4959 check_cflags -Werror=implicit-function-declaration
4960 check_cflags -Werror=missing-prototypes
4961 check_cflags -Werror=return-type
4962 check_cflags -Werror=declaration-after-statement
4963 check_cflags -Werror=vla
4964 check_cflags -Werror=format-security
4965 check_cflags -fdiagnostics-color=auto
4966 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4967 elif enabled llvm_gcc; then
4968 check_cflags -mllvm -stack-alignment=16
4969 elif enabled clang; then
4970 check_cflags -mllvm -stack-alignment=16
4971 check_cflags -Qunused-arguments
4972 check_cflags -Werror=implicit-function-declaration
4973 check_cflags -Werror=missing-prototypes
4974 check_cflags -Werror=return-type
4975 elif enabled cparser; then
4976 add_cflags -Wno-missing-variable-declarations
4977 add_cflags -Wno-empty-statement
4978 elif enabled armcc; then
4979 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4980 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4981 # 2523: use of inline assembly is deprecated
4982 add_cflags -W${armcc_opt},--diag_suppress=2523
4983 add_cflags -W${armcc_opt},--diag_suppress=1207
4984 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4985 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4986 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4987 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4988 elif enabled tms470; then
4989 add_cflags -pds=824 -pds=837
4991 elif enabled pathscale; then
4992 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4993 elif enabled_any msvc icl; then
4994 enabled x86_32 && disable aligned_stack
4995 enabled_all x86_32 debug && add_cflags -Oy-
4996 enabled debug && add_ldflags -debug
4997 enable pragma_deprecated
4998 if enabled icl; then
4999 # -Qansi-alias is basically -fstrict-aliasing, but does not work
5000 # (correctly) on icl 13.x.
5001 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5002 add_cflags -Qansi-alias
5003 # icl will pass the inline asm tests but inline asm is currently
5004 # not supported (build will fail)
5007 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
5008 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5009 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
5010 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
5011 # (as it ends up if the restrict redefine is done before including stdlib.h), while
5012 # MSVC 2013 and newer can handle it fine.
5013 # If this declspec fails, force including stdlib.h before the restrict redefinition
5014 # happens in config.h.
5015 if [ $_restrict != restrict ]; then
5016 check_cc <<EOF || add_cflags -FIstdlib.h
5017 __declspec($_restrict) void* foo(int);
5022 for pfx in "" host_; do
5023 varname=${pfx%_}cc_type
5024 eval "type=\$$varname"
5025 if [ $type = "msvc" ]; then
5026 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
5027 static inline int foo(int a) { return a; }
5034 add_asflags -Qunused-arguments
5040 check_ldflags -Qunused-arguments
5046 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5049 add_cppflags -Dmain=plan9_main
5053 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5055 check_deps $CONFIG_LIST \
5060 enabled_all dxva2 CoTaskMemFree &&
5061 prepend avconv_libs $($ldflags_filter "-lole32") &&
5064 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5066 for thread in $THREADS_LIST; do
5067 if enabled $thread; then
5068 test -n "$thread_type" &&
5069 die "ERROR: Only one thread type must be selected." ||
5070 thread_type="$thread"
5074 if disabled stdatomic_h; then
5075 if enabled atomics_gcc; then
5076 add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
5077 elif enabled atomics_win32; then
5078 add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
5079 elif enabled atomics_suncc; then
5080 add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
5081 elif enabled pthreads; then
5082 add_compat atomics/pthread/stdatomic.o
5083 add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
5085 enabled threads && die "Threading is enabled, but no atomics are available"
5086 add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
5090 enabled zlib && add_cppflags -DZLIB_CONST
5092 # conditional library dependencies, in linking order
5093 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5094 enabled resample_filter && prepend avfilter_deps "avresample"
5095 enabled scale_filter && prepend avfilter_deps "swscale"
5097 enabled opus_decoder && prepend avcodec_deps "avresample"
5101 eval "deps=\$$lib_deps"
5102 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5106 map 'expand_deps $v' $LIBRARY_LIST
5108 echo "install prefix $prefix"
5109 echo "source path $source_path"
5110 echo "C compiler $cc"
5111 echo "C library $libc_type"
5112 if test "$host_cc" != "$cc"; then
5113 echo "host C compiler $host_cc"
5114 echo "host C library $host_libc_type"
5116 echo "ARCH $arch ($cpu)"
5117 if test "$build_suffix" != ""; then
5118 echo "build suffix $build_suffix"
5120 if test "$extra_version" != ""; then
5121 echo "version string suffix $extra_version"
5123 echo "big-endian ${bigendian-no}"
5124 echo "runtime cpu detection ${runtime_cpudetect-no}"
5125 if enabled x86; then
5126 echo "${yasmexe} ${yasm-no}"
5127 echo "MMX enabled ${mmx-no}"
5128 echo "MMXEXT enabled ${mmxext-no}"
5129 echo "3DNow! enabled ${amd3dnow-no}"
5130 echo "3DNow! extended enabled ${amd3dnowext-no}"
5131 echo "SSE enabled ${sse-no}"
5132 echo "SSSE3 enabled ${ssse3-no}"
5133 echo "AVX enabled ${avx-no}"
5134 echo "XOP enabled ${xop-no}"
5135 echo "FMA3 enabled ${fma3-no}"
5136 echo "FMA4 enabled ${fma4-no}"
5137 echo "i686 features enabled ${i686-no}"
5138 echo "CMOV is fast ${fast_cmov-no}"
5139 echo "EBX available ${ebx_available-no}"
5140 echo "EBP available ${ebp_available-no}"
5142 if enabled aarch64; then
5143 echo "NEON enabled ${neon-no}"
5144 echo "VFP enabled ${vfp-no}"
5146 if enabled arm; then
5147 echo "ARMv5TE enabled ${armv5te-no}"
5148 echo "ARMv6 enabled ${armv6-no}"
5149 echo "ARMv6T2 enabled ${armv6t2-no}"
5150 echo "VFP enabled ${vfp-no}"
5151 echo "NEON enabled ${neon-no}"
5153 if enabled ppc; then
5154 echo "AltiVec enabled ${altivec-no}"
5155 echo "VSX enabled ${vsx-no}"
5156 echo "POWER8 enabled ${power8-no}"
5157 echo "PPC 4xx optimizations ${ppc4xx-no}"
5158 echo "dcbzl available ${dcbzl-no}"
5160 echo "debug symbols ${debug-no}"
5161 echo "optimize for size ${small-no}"
5162 echo "optimizations ${optimizations-no}"
5163 echo "static ${static-no}"
5164 echo "shared ${shared-no}"
5165 echo "new filter support ${avfilter-no}"
5166 echo "network support ${network-no}"
5167 echo "threading support ${thread_type-no}"
5168 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5169 echo "SDL support ${sdl-no}"
5170 test -n "$random_seed" &&
5171 echo "random seed ${random_seed}"
5174 echo "External libraries:"
5175 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5177 echo "External libraries providing hardware acceleration:"
5178 print_enabled '' $HWACCEL_LIBRARY_LIST | print_3_columns
5182 print_enabled '' $LIBRARY_LIST | print_3_columns
5185 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5186 echo "Enabled ${type}s:"
5187 eval list=\$$(toupper $type)_LIST
5188 print_enabled '_*' $list | print_3_columns
5192 license="LGPL version 2.1 or later"
5193 if enabled nonfree; then
5194 license="nonfree and unredistributable"
5195 elif enabled gplv3; then
5196 license="GPL version 3 or later"
5197 elif enabled lgplv3; then
5198 license="LGPL version 3 or later"
5199 elif enabled gpl; then
5200 license="GPL version 2 or later"
5203 echo "License: $license"
5205 echo "Creating config.mak and config.h..."
5207 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5209 config_files="$TMPH config.mak"
5211 cat > config.mak <<EOF
5212 # Automatically generated by configure - do not modify!
5213 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5215 LIBDIR=\$(DESTDIR)$libdir
5216 SHLIBDIR=\$(DESTDIR)$shlibdir
5217 INCDIR=\$(DESTDIR)$incdir
5218 BINDIR=\$(DESTDIR)$bindir
5219 DATADIR=\$(DESTDIR)$datadir
5220 DOCDIR=\$(DESTDIR)$docdir
5221 MANDIR=\$(DESTDIR)$mandir
5222 SRC_PATH=$source_path
5225 INTRINSICS=$intrinsics
5232 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5234 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5245 OBJCFLAGS=$OBJCFLAGS
5260 LDEXEFLAGS=$LDEXEFLAGS
5261 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5262 STRIPFLAGS=$STRIPFLAGS
5263 YASMFLAGS=$YASMFLAGS
5264 BUILDSUF=$build_suffix
5272 EXTRA_VERSION=$extra_version
5274 CCDEP_FLAGS=$CCDEP_FLAGS
5276 ASDEP_FLAGS=$ASDEP_FLAGS
5277 CC_DEPFLAGS=$CC_DEPFLAGS
5278 AS_DEPFLAGS=$AS_DEPFLAGS
5281 HOSTCFLAGS=$host_cflags
5282 HOSTCPPFLAGS=$host_cppflags
5283 HOSTEXESUF=$HOSTEXESUF
5284 HOSTLDFLAGS=$host_ldflags
5287 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5288 HOSTCCDEP=$HOSTCCDEP
5289 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5290 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5294 TARGET_EXEC=$target_exec $target_exec_args
5295 TARGET_PATH=$target_path
5296 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5297 CFLAGS-avplay=$sdl_cflags
5298 ZLIB=$($ldflags_filter -lz)
5299 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5300 EXTRALIBS=$extralibs
5301 COMPAT_OBJS=$compat_objs
5304 LIBTARGET=${LIBTARGET}
5305 SLIBNAME=${SLIBNAME}
5306 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5307 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5308 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5309 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5310 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5311 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5312 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5313 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5314 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
5315 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5320 name=$(toupper $lcname)
5321 file=$source_path/$lcname/version.h
5322 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5323 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5324 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5325 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5326 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5329 map 'get_version $v' $LIBRARY_LIST
5331 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5333 print_program_libs(){
5334 eval "program_libs=\$${1}_libs"
5335 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5338 map 'print_program_libs $v' $PROGRAM_LIST
5341 /* Automatically generated by configure - do not modify! */
5342 #ifndef LIBAV_CONFIG_H
5343 #define LIBAV_CONFIG_H
5344 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5345 #define LIBAV_LICENSE "$(c_escape $license)"
5346 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5347 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5348 #define restrict $_restrict
5349 #define EXTERN_PREFIX "${extern_prefix}"
5350 #define EXTERN_ASM ${extern_prefix}
5351 #define SLIBSUF "$SLIBSUF"
5354 test -n "$malloc_prefix" &&
5355 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5357 if enabled yasm; then
5358 append config_files $TMPASM
5362 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5364 print_config ARCH_ "$config_files" $ARCH_LIST
5365 print_config HAVE_ "$config_files" $HAVE_LIST
5366 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5370 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5372 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5373 cp_if_changed $TMPH config.h
5376 enabled yasm && cp_if_changed $TMPASM config.asm
5379 /* Generated by ffconf */
5380 #ifndef AVUTIL_AVCONFIG_H
5381 #define AVUTIL_AVCONFIG_H
5384 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5386 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5388 cp_if_changed $TMPH libavutil/avconfig.h
5390 test -n "$WARNINGS" && printf "\n$WARNINGS"
5392 # generate the lists of enabled components
5393 print_enabled_components(){
5398 echo "static const $struct_name *$name[] = {" > $TMPH
5400 enabled $c && printf " &ff_%s,\n" $c >> $TMPH
5402 echo " NULL };" >> $TMPH
5403 cp_if_changed $TMPH $file
5406 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5407 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5409 # build pkg-config files
5412 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5415 pkgconfig_generate(){
5417 shortname=${name#lib}${build_suffix}
5421 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5422 requires=${requires%, }
5423 enabled ${name#lib} || return 0
5425 cat <<EOF > $name/$name.pc
5427 exec_prefix=\${prefix}
5432 Description: $comment
5434 Requires: $(enabled shared || echo $requires)
5435 Requires.private: $(enabled shared && echo $requires)
5437 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5438 Libs.private: $(enabled shared && echo $libs)
5439 Cflags: -I\${includedir}
5441 cat <<EOF > $name/$name-uninstalled.pc
5444 libdir=\${pcfiledir}
5445 includedir=${source_path}
5448 Description: $comment
5452 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5453 Cflags: -I\${includedir}
5457 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5458 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5459 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5460 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5461 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5462 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5463 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"