3 # Libav configure script
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
10 # Prevent locale nonsense from breaking basic text processing.
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
23 (: ${foo%%bar}) 2> /dev/null
26 (: ${foo?}) 2> /dev/null
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
32 if test "0$FF_CONF_EXEC" -lt 1; then
34 try_exec bash "$0" "$@"
36 if test "0$FF_CONF_EXEC" -lt 2; then
38 try_exec ksh "$0" "$@"
40 if test "0$FF_CONF_EXEC" -lt 3; then
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --quiet Suppress showing informative output
67 --list-decoders show all available decoders
68 --list-encoders show all available encoders
69 --list-hwaccels show all available hardware accelerators
70 --list-demuxers show all available demuxers
71 --list-muxers show all available muxers
72 --list-parsers show all available parsers
73 --list-protocols show all available protocols
74 --list-bsfs show all available bitstream filters
75 --list-indevs show all available input devices
76 --list-outdevs show all available output devices
77 --list-filters show all available filters
80 --logfile=FILE log tests and output to FILE [config.log]
81 --disable-logging do not log configure debug information
82 --prefix=PREFIX install in PREFIX [$prefix_default]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath when linking programs (USE WITH CARE)
93 --enable-gpl allow use of GPL code, the resulting libs
94 and binaries will be under GPL [no]
95 --enable-version3 upgrade (L)GPL to version 3 [no]
96 --enable-nonfree allow use of nonfree code, the resulting libs
97 and binaries will be unredistributable [no]
99 Configuration options:
100 --disable-static do not build static libraries [no]
101 --enable-shared build shared libraries [no]
102 --enable-small optimize for size instead of speed
103 --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104 --enable-gray enable full grayscale support (slower color)
105 --disable-swscale-alpha disable alpha channel support in swscale
106 --disable-all disable building components, libraries and programs
109 --disable-programs do not build command line programs
110 --disable-avconv disable avconv build
111 --disable-avplay disable avplay build
112 --disable-avprobe disable avprobe build
113 --disable-avserver deprecated, does nothing
116 --disable-doc do not build documentation
117 --disable-pod2man do not build manual pages
118 --disable-texi2html do not build HTML documentation
119 --disable-avdevice disable libavdevice build
120 --disable-avcodec disable libavcodec build
121 --disable-avformat disable libavformat build
122 --disable-avutil disable libavutil build
123 --disable-swscale disable libswscale build
124 --disable-avfilter disable video filter support [no]
125 --disable-avresample disable libavresample build [no]
126 --disable-pthreads disable pthreads [auto]
127 --disable-w32threads disable Win32 threads [auto]
128 --disable-network disable network support [no]
129 --disable-dct disable DCT code
130 --disable-error-resilience disable error resilience code
131 --disable-lsp disable LSP code
132 --disable-lzo disable LZO decoder code
133 --disable-mdct disable MDCT code
134 --disable-rdft disable RDFT code
135 --disable-fft disable FFT code
136 --disable-faan disable floating point AAN (I)DCT code
138 Individual component options:
139 --disable-everything disable all components listed below
140 --disable-encoder=NAME disable encoder NAME
141 --enable-encoder=NAME enable encoder NAME
142 --disable-encoders disable all encoders
143 --disable-decoder=NAME disable decoder NAME
144 --enable-decoder=NAME enable decoder NAME
145 --disable-decoders disable all decoders
146 --disable-hwaccel=NAME disable hwaccel NAME
147 --enable-hwaccel=NAME enable hwaccel NAME
148 --disable-hwaccels disable all hwaccels
149 --disable-muxer=NAME disable muxer NAME
150 --enable-muxer=NAME enable muxer NAME
151 --disable-muxers disable all muxers
152 --disable-demuxer=NAME disable demuxer NAME
153 --enable-demuxer=NAME enable demuxer NAME
154 --disable-demuxers disable all demuxers
155 --enable-parser=NAME enable parser NAME
156 --disable-parser=NAME disable parser NAME
157 --disable-parsers disable all parsers
158 --enable-bsf=NAME enable bitstream filter NAME
159 --disable-bsf=NAME disable bitstream filter NAME
160 --disable-bsfs disable all bitstream filters
161 --enable-protocol=NAME enable protocol NAME
162 --disable-protocol=NAME disable protocol NAME
163 --disable-protocols disable all protocols
164 --enable-indev=NAME enable input device NAME
165 --disable-indev=NAME disable input device NAME
166 --disable-indevs disable input devices
167 --enable-outdev=NAME enable output device NAME
168 --disable-outdev=NAME disable output device NAME
169 --disable-outdevs disable output devices
170 --disable-devices disable all devices
171 --enable-filter=NAME enable filter NAME
172 --disable-filter=NAME disable filter NAME
173 --disable-filters disable all filters
175 External library support:
177 Using any of the following switches will allow Libav to link to the
178 corresponding external library. All the components depending on that library
179 will become enabled, if all their other dependencies are met and they are not
180 explicitly disabled. E.g. --enable-libwavpack will enable linking to
181 libwavpack and allow the libwavpack encoder to be built, unless it is
182 specifically disabled with --disable-encoder=libwavpack.
184 Note that only the system libraries are auto-detected. All the other external
185 libraries must be explicitly enabled.
187 Also note that the following help text describes the purpose of the libraries
188 themselves, not all their features will necessarily be usable by Libav.
190 --enable-avisynth video frameserver
191 --enable-avxsynth Linux version of AviSynth
192 --enable-bzlib bzip2 compression [autodetect]
193 --enable-frei0r video filtering plugins
194 --enable-gnutls crypto
195 --enable-libbs2b Bauer stereophonic-to-binaural DSP
196 --enable-libcdio audio CD input
197 --enable-libdc1394 IEEE 1394/Firewire camera input
198 --enable-libdcadec DCA audio decoding
199 --enable-libfaac AAC audio encoding
200 --enable-libfdk-aac AAC audio encoding/decoding
201 --enable-libfontconfig font configuration and management
202 --enable-libfreetype font rendering
203 --enable-libgsm GSM audio encoding/decoding
204 --enable-libhdcd HDCD decoding filter
205 --enable-libilbc ILBC audio encoding/decoding
206 --enable-libkvazaar HEVC video encoding
207 --enable-libmp3lame MP3 audio encoding
208 --enable-libopencore-amrnb AMR-NB audio encoding/decoding
209 --enable-libopencore-amrwb AMR-WB audio decoding
210 --enable-libopencv computer vision
211 --enable-libopenh264 H.264 video encoding/decoding
212 --enable-libopenjpeg JPEG 2000 image encoding/decoding
213 --enable-libopus Opus audio encoding/decoding
214 --enable-libpulse Pulseaudio sound server
215 --enable-librtmp RTMP streaming
216 --enable-libschroedinger Dirac video encoding/decoding
217 --enable-libsnappy snappy compression
218 --enable-libspeex Speex audio encoding/decoding
219 --enable-libtheora Theora video encoding/decoding
220 --enable-libtwolame MP2 audio encoding
221 --enable-libvo-aacenc AAC audio encoding
222 --enable-libvo-amrwbenc AMR-WB audio encoding
223 --enable-libvorbis Vorbis audio encoding/decoding
224 --enable-libvpx VP* video encoding/decoding
225 --enable-libwavpack Wavpack audio encoding/decoding
226 --enable-libwebp WebP image encoding/decoding
227 --enable-libx264 H.264 video encoding
228 --enable-libx265 HEVC video encoding
229 --enable-libxavs Chinese AVS video encoding
230 --enable-libxcb X window system protocol communication
231 --enable-libxcb-shm X11 shm communication [auto]
232 --enable-libxcb-xfixes X11 mouse rendering [auto]
233 --enable-libxvid MPEG-4 ASP video encoding
234 --enable-openssl crypto
235 --enable-zlib compression [autodetect]
237 The following libraries provide various hardware acceleration features:
238 --enable-cuda Nvidia CUDA (dynamically linked)
239 --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
240 --enable-dxva2 Microsoft DirectX 9 video acceleration [auto]
241 --enable-libmfx Intel MediaSDK (AKA Quick Sync Video)
242 --enable-libnpp Nvidia CUDA processing
243 --enable-mmal Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
244 --enable-nvenc Nvidia video encoding
245 --enable-omx OpenMAX IL
246 --enable-omx-rpi OpenMAX IL for Raspberry Pi
247 --enable-vaapi Video Acceleration API (mainly Unix/Intel)
248 --enable-vda Apple Video Decode Acceleration [auto]
249 --enable-vdpau Nvidia Video Decode and Presentation API for Unix [auto]
252 --arch=ARCH select architecture [$arch]
253 --cpu=CPU select the minimum required CPU (affects
254 instruction selection, may crash on older CPUs)
255 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
256 --enable-cross-compile assume a cross-compiler is used
257 --sysroot=PATH root of cross-build tree
258 --sysinclude=PATH location of cross-build system headers
259 --target-os=OS compiler targets OS [$target_os]
260 --target-exec=CMD command to run executables on target
261 --target-path=DIR path to view of build directory on target
262 --target-samples=DIR path to samples directory on target
263 --toolchain=NAME set tool defaults according to NAME
265 --ar=AR use archive tool AR [$ar_default]
266 --as=AS use assembler AS [$as_default]
267 --cc=CC use C compiler CC [$cc_default]
268 --objcc=OCC use ObjC compiler OCC [$cc_default]
269 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
270 --ld=LD use linker LD
271 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
272 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
273 --host-cc=HOSTCC use host C compiler HOSTCC
274 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
275 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
276 --host-ld=HOSTLD use host linker HOSTLD
277 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
278 --host-libs=HLIBS use libs HLIBS when linking for host
279 --host-os=OS compiler host OS [$target_os]
280 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
281 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
282 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
283 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
284 --extra-libs=ELIBS add ELIBS [$ELIBS]
285 --extra-version=STRING version string suffix []
286 --optflags=OPTFLAGS override optimization-related compiler flags
287 --enable-pic build position-independent code
288 --enable-thumb compile for Thumb instruction set
289 --enable-lto use link-time optimization
290 --env="ENV=override" override the environment variables
292 Advanced options (experts only):
293 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
294 --custom-allocator=NAME use a supported custom allocator
295 --disable-symver disable symbol versioning
296 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297 --disable-safe-bitstream-reader
298 disable buffer boundary checking in bitreaders
299 (faster, but may crash)
300 --enable-sram allow use of on-chip SRAM
302 Optimization options (experts only):
303 --disable-asm disable all assembly optimizations
304 --disable-altivec disable AltiVec optimizations
305 --disable-vsx disable VSX optimizations
306 --disable-power8 disable POWER8 optimizations
307 --disable-amd3dnow disable 3DNow! optimizations
308 --disable-amd3dnowext disable 3DNow! extended optimizations
309 --disable-mmx disable MMX optimizations
310 --disable-mmxext disable MMXEXT optimizations
311 --disable-sse disable SSE optimizations
312 --disable-sse2 disable SSE2 optimizations
313 --disable-sse3 disable SSE3 optimizations
314 --disable-ssse3 disable SSSE3 optimizations
315 --disable-sse4 disable SSE4 optimizations
316 --disable-sse42 disable SSE4.2 optimizations
317 --disable-avx disable AVX optimizations
318 --disable-xop disable XOP optimizations
319 --disable-fma3 disable FMA3 optimizations
320 --disable-fma4 disable FMA4 optimizations
321 --disable-avx2 disable AVX2 optimizations
322 --disable-armv5te disable armv5te optimizations
323 --disable-armv6 disable armv6 optimizations
324 --disable-armv6t2 disable armv6t2 optimizations
325 --disable-vfp disable VFP optimizations
326 --disable-neon disable NEON optimizations
327 --disable-inline-asm disable use of inline assembly
328 --disable-yasm disable use of nasm/yasm assembly
330 Developer options (useful when working on Libav itself):
331 --disable-debug disable debugging symbols
332 --enable-debug=LEVEL set the debug level [$debuglevel]
333 --disable-optimizations disable compiler optimizations
334 --enable-extra-warnings enable more compiler warnings
335 --samples=PATH location of test samples for FATE, if not set use
336 \$LIBAV_SAMPLES at make invocation time.
337 --enable-neon-clobber-test check NEON registers for clobbering (should be
338 used only for debugging purposes)
339 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340 should be used only for debugging purposes)
341 --enable-random randomly enable/disable components
343 --enable-random=LIST randomly enable/disable specific components or
344 --disable-random=LIST component groups. LIST is a comma-separated list
345 of NAME[:PROB] entries where NAME is a component
346 (group) and PROB the probability associated with
348 --random-seed=VALUE seed value for --enable/disable-random
349 --disable-valgrind-backtrace do not print a backtrace under Valgrind
350 (only applies to --disable-optimizations builds)
352 NOTE: Object files are built at the place where configure is launched.
360 echo "$@" >> $logfile
367 printf '%5s %s\n' "${i}" "${line}"
369 done < $1 >> $logfile
380 WARNINGS="${WARNINGS}WARNING: $*\n"
387 If you think configure made a mistake, make sure you are using the latest
388 version from Git. If the latest version fails, report the problem to the
389 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
391 if disabled logging; then
393 Rerun configure with logging enabled (do not use --disable-logging), and
394 include the log this produces with your report.
398 Include the log file "$logfile" produced by configure as this will help
405 # Avoid locale weirdness, besides we really just want to translate ASCII.
407 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
411 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
415 echo "$*" | sed 's/["\\]/\\\0/g'
419 v=$(echo "$1" | sed "s/'/'\\\\''/g")
420 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
425 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
432 eval "case $v in $pat) printf '%s ' $v ;; esac"
440 eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
447 for v; do eval $m; done
453 for v; do echo ${v}${suffix}; done
468 eval : \${$var:=$value}
473 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
479 eval $(sanitize_var_name "$var")='$*'
483 eval echo \$$(sanitize_var_name "$1")
488 eval level=\${${pvar}_level:=0}
489 eval ${pvar}_${level}="\$$pvar"
490 eval ${pvar}_level=$(($level+1))
496 eval level=\${${pvar}_level:-0}
497 test $level = 0 && continue
498 eval level=$(($level-1))
499 eval $pvar="\${${pvar}_${level}}"
500 eval ${pvar}_level=$level
501 eval unset ${pvar}_${level}
523 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
529 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
535 enabled $var && continue
536 eval sel="\$${var}_select"
537 eval sgs="\$${var}_suggest"
541 enable_deep_weak $sgs
553 disabled $var && continue
562 test "${1#!}" = "$1" && op== || op=!=
563 eval test "x\$${1#!}" $op "xyes"
567 test "${1#!}" = "$1" && op== || op=!=
568 eval test "x\$${1#!}" $op "xno"
573 enabled $opt || return 1
579 disabled $opt || return 1
585 enabled $opt && return 0
591 disabled $opt && return 0
598 eval : \${$opt:=\$${opt}_default}
606 [ $var = $value ] && return 0
614 enabled ${cfg}_checking && die "Circular dependency for $cfg."
615 disabled ${cfg}_checking && continue
616 enable ${cfg}_checking
619 eval dep_all="\$${cfg}_deps"
620 eval dep_any="\$${cfg}_deps_any"
621 eval dep_sel="\$${cfg}_select"
622 eval dep_sgs="\$${cfg}_suggest"
623 eval dep_ifa="\$${cfg}_if"
624 eval dep_ifn="\$${cfg}_if_any"
626 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
627 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
628 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
630 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
631 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
632 enabled_all $dep_all || disable $cfg
633 enabled_any $dep_any || disable $cfg
634 disabled_any $dep_sel && disable $cfg
636 if enabled $cfg; then
638 enable_deep_weak $dep_sgs
641 disable ${cfg}_checking
650 for cfg in $allopts; do
651 enabled $cfg || continue
652 eval dep_extralibs="\$${cfg}_extralibs"
653 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
661 map 'eval echo "$v \${$v:-no}"' "$@" |
662 awk "BEGIN { split(\"$files\", files) }
664 c = \"$pfx\" toupper(\$1);
670 if (file ~ /\\.h\$/) {
671 printf(\"#define %s %d\\n\", c, v) >>file;
672 } else if (file ~ /\\.asm\$/) {
673 printf(\"%%define %s %d\\n\", c, v) >>file;
674 } else if (file ~ /\\.mak\$/) {
675 n = -v ? \"\" : \"!\";
676 printf(\"%s%s=yes\\n\", n, c) >>file;
686 enabled $v && printf "%s\n" ${v%$suf}
693 eval "$var=\"\$$var $*\""
699 eval "$var=\"$* \$$var\""
705 for tok in $(eval echo \$$var); do
706 uniq_list="$(filter_out $tok $uniq_list) $tok"
708 eval "$var=\"${uniq_list}\""
716 append CFLAGS $($cflags_filter "$@")
719 add_cflags_headers(){
720 append CFLAGS_HEADERS $($cflags_filter "$@")
724 append ASFLAGS $($asflags_filter "$@")
728 append OBJCFLAGS $($objcflags_filter "$@")
732 append LDFLAGS $($ldflags_filter "$@")
736 append LDEXEFLAGS $($ldflags_filter "$@")
740 append STRIPFLAGS "$@"
744 prepend extralibs $($ldflags_filter "$@")
748 append host_cppflags "$@"
752 append host_cflags $($host_cflags_filter "$@")
756 append host_ldflags $($host_ldflags_filter "$@")
760 append compat_objs $1
762 map 'add_cppflags -D$v' "$@"
767 "$@" >> $logfile 2>&1
771 eval printf '%s\\n' $CC_O
775 eval printf '%s\\n' $CC_E
782 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
789 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
796 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
800 eval printf '%s\\n' $AS_O
807 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
811 log check_inline_asm "$@"
816 check_cc "$@" <<EOF && enable $name
817 void foo(void){ __asm__ volatile($code); }
823 check_inline_asm ${1}_inline "\"$2\""
824 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
832 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
836 eval printf '%s\\n' $LD_O
841 flags=$(filter_out '-l*' "$@")
842 libs=$(filter '-l*' "$@")
843 check_cc $($cflags_filter $flags) || return
844 flags=$($ldflags_filter $flags)
845 libs=$($ldflags_filter $libs)
846 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
851 test "${hdr%.h}" = "${hdr}" &&
852 echo "#include $hdr" ||
853 echo "#include <$hdr>"
863 for hdr in $headers; do
866 echo "int main(void) { $code; return 0; }"
867 } | check_$check "$@"
871 log check_cppflags "$@"
872 check_cpp "$@" <<EOF && append CPPFLAGS "$@"
879 set -- $($cflags_filter "$@")
886 log check_cflags "$@"
887 test_cflags "$@" && add_cflags "$@"
891 log test_objcflags "$@"
892 set -- $($objcflags_filter "$@")
893 check_objcc "$@" <<EOF
899 log check_objcflags "$@"
900 test_objcflags "$@" && add_objcflags "$@"
904 log test_ldflags "$@"
906 int main(void){ return 0; }
911 log check_ldflags "$@"
912 test_ldflags "$@" && add_ldflags "$@"
916 log test_stripflags "$@"
917 # call check_cc to get a fresh TMPO
919 int main(void) { return 0; }
921 check_cmd $strip $STRIPFLAGS "$@" $TMPO
925 log check_stripflags "$@"
926 test_stripflags "$@" && add_stripflags "$@"
930 log check_header "$@"
934 check_cpp "$@" <<EOF && enable_safe $header
945 check_ld "$@" <<EOF && enable $func
947 int main(void){ $func(); }
952 log check_mathfunc "$@"
956 test $narg = 2 && args="f, g" || args="f"
958 check_ld "$@" <<EOF && enable $func
960 float foo(float f, float g) { return $func($args); }
961 int main(void){ return 0; }
965 check_func_headers(){
966 log check_func_headers "$@"
971 for hdr in $headers; do
974 for func in $funcs; do
975 echo "long check_$func(void) { return (long) $func; }"
977 echo "int main(void) { return 0; }"
978 } | check_ld "$@" && enable $funcs && enable_safe $headers
981 check_cpp_condition(){
982 log check_cpp_condition "$@"
989 #error "unsatisfied condition: $condition"
995 log test_cflags_cpp "$@"
999 set -- $($cflags_filter "$flags")
1000 check_cpp "$@" <<EOF
1002 #error "unsatisfied condition: $condition"
1012 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1016 log check_pkg_config "$@"
1022 check_cmd $pkg_config --exists --print-errors $pkg_version || return
1023 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1024 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1025 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1026 set_safe "${pkg}_cflags" $pkg_cflags &&
1027 set_safe "${pkg}_libs" $pkg_libs
1031 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1035 log check_exec_crash "$@"
1038 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1039 # are safe but may not be available everywhere. Thus we use
1040 # raise(SIGTERM) instead. The check is run in a subshell so we
1041 # can redirect the "Terminated" message from the shell. SIGBUS
1042 # is not defined by standard C so it is used conditionally.
1044 (check_exec "$@") >> $logfile 2>&1 <<EOF
1046 static void sighandler(int sig){
1052 int (*func_ptr)(void) = foo;
1054 signal(SIGILL, sighandler);
1055 signal(SIGFPE, sighandler);
1056 signal(SIGSEGV, sighandler);
1058 signal(SIGBUS, sighandler);
1070 disable_safe "$type"
1071 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1075 log check_struct "$@"
1080 disable_safe "${struct}_${member}"
1081 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1082 enable_safe "${struct}_${member}"
1086 log check_builtin "$@"
1092 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1095 check_compile_assert(){
1096 log check_compile_assert "$@"
1102 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1111 check_lib "$headers" $func "$@" || die "ERROR: $name_version not found"
1114 require_pkg_config(){
1115 log require_pkg_config "$@"
1118 check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1119 add_cflags $(get_safe "${pkg}_cflags")
1120 add_extralibs $(get_safe "${pkg}_libs")
1124 eval printf '%s\\n' $HOSTCC_E
1128 eval printf '%s\\n' $HOSTCC_O
1132 log check_host_cc "$@"
1135 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1139 log check_host_cpp "$@"
1142 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1145 check_host_cppflags(){
1146 log check_host_cppflags "$@"
1147 check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1152 check_host_cflags(){
1153 log check_host_cflags "$@"
1154 set -- $($host_cflags_filter "$@")
1155 check_host_cc "$@" <<EOF && append host_cflags "$@"
1160 check_host_cpp_condition(){
1161 log check_host_cpp_condition "$@"
1165 check_host_cpp "$@" <<EOF
1168 #error "unsatisfied condition: $condition"
1176 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1180 cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1181 mkdir -p "$(dirname $2)"
1185 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1186 # system-dependent things.
1188 AVCODEC_COMPONENTS="
1196 AVDEVICE_COMPONENTS="
1200 AVFILTER_COMPONENTS="
1203 AVFORMAT_COMPONENTS="
1209 AVRESAMPLE_COMPONENTS=""
1210 AVUTIL_COMPONENTS=""
1214 $AVDEVICE_COMPONENTS
1215 $AVFILTER_COMPONENTS
1216 $AVFORMAT_COMPONENTS
1217 $AVRESAMPLE_COMPONENTS
1222 decode_audio_example
1223 decode_video_example
1224 encode_audio_example
1225 encode_video_example
1226 filter_audio_example
1230 transcode_aac_example
1233 HWACCEL_LIBRARY_NONFREE_LIST="
1237 HWACCEL_LIBRARY_LIST="
1238 $HWACCEL_LIBRARY_NONFREE_LIST
1250 EXTERNAL_LIBRARY_GPL_LIST="
1258 EXTERNAL_LIBRARY_NONFREE_LIST="
1264 EXTERNAL_LIBRARY_VERSION3_LIST="
1271 EXTERNAL_LIBRARY_LIST="
1272 $EXTERNAL_LIBRARY_GPL_LIST
1273 $EXTERNAL_LIBRARY_NONFREE_LIST
1274 $EXTERNAL_LIBRARY_VERSION3_LIST
1316 safe_bitstream_reader
1359 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1362 $EXTERNAL_LIBRARY_LIST
1363 $HWACCEL_LIBRARY_LIST
1427 ARCH_EXT_LIST_X86_SIMD="
1455 $ARCH_EXT_LIST_X86_SIMD
1460 ARCH_EXT_LIST_MIPS="
1497 sync_val_compare_and_swap
1511 AVFoundation_AVFoundation_h
1516 cdio_paranoia_paranoia_h
1518 dev_bktr_ioctl_bt848_h
1519 dev_bktr_ioctl_meteor_h
1521 dev_video_bktr_ioctl_bt848_h
1522 dev_video_meteor_ioctl_meteor_h
1530 machine_ioctl_bt848_h
1531 machine_ioctl_meteor_h
1596 GetProcessAffinityMask
1597 GetProcessMemoryInfo
1600 GetSystemTimeAsFileTime
1605 jack_port_get_latency_range
1617 SetConsoleTextAttribute
1628 TOOLCHAIN_FEATURES="
1650 CONDITION_VARIABLE_Ptr
1653 struct_group_source_req
1654 struct_ip_mreq_source
1657 struct_rusage_ru_maxrss
1659 struct_sockaddr_sa_len
1660 struct_sockaddr_storage
1661 struct_v4l2_frmivalenum_discrete
1666 $(add_suffix _external $ARCH_EXT_LIST)
1667 $(add_suffix _inline $ARCH_EXT_LIST)
1682 MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1691 # options emitted with CONFIG_ prefix but not available on the command line
1838 # code dependency declarations
1840 # architecture extensions
1845 armv8_deps="aarch64"
1846 neon_deps_any="aarch64 arm"
1847 intrinsics_neon_deps="neon"
1848 vfp_deps_any="aarch64 arm"
1851 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1859 x86_64_select="i686"
1860 x86_64_suggest="fast_cmov"
1863 amd3dnowext_deps="amd3dnow"
1879 mmx_external_deps="yasm"
1880 mmx_inline_deps="inline_asm"
1881 mmx_suggest="mmx_external mmx_inline"
1883 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1884 eval dep=\$${ext}_deps
1885 eval ${ext}_external_deps='"${dep}_external"'
1886 eval ${ext}_inline_deps='"${dep}_inline"'
1887 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1890 aligned_stack_if_any="aarch64 ppc x86"
1891 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1892 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1893 fast_unaligned_if_any="aarch64 ppc x86"
1894 simd_align_16_if_any="altivec neon sse"
1895 simd_align_32_if_any="avx"
1897 # system capabilities
1898 symver_if_any="symver_asm_label symver_gnu_asm"
1899 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1902 atomics_gcc_if="sync_val_compare_and_swap"
1903 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1904 atomics_win32_if="MemoryBarrier"
1905 atomics_native_if_any="$ATOMICS_LIST"
1906 w32threads_deps="atomics_native"
1907 threads_if_any="$THREADS_LIST"
1911 dirac_parse_select="golomb"
1912 error_resilience_select="me_cmp"
1913 faandct_deps="faan fdctdsp"
1914 faanidct_deps="faan idctdsp"
1915 h264dsp_select="startcode"
1916 hevc_ps_select="golomb"
1917 intrax8_select="blockdsp idctdsp"
1920 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1921 mpeg_er_select="error_resilience"
1922 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1923 mpegaudiodsp_select="dct"
1924 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1925 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1926 vc1dsp_select="h264chroma qpeldsp startcode"
1928 # decoders / encoders
1929 aac_decoder_select="imdct15 mdct sinewin"
1930 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1931 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1932 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1933 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1934 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1935 adpcm_g722_decoder_select="g722dsp"
1936 adpcm_g722_encoder_select="g722dsp"
1937 aic_decoder_select="golomb idctdsp"
1938 alac_encoder_select="lpc"
1939 als_decoder_select="bswapdsp"
1940 amrnb_decoder_select="lsp"
1941 amrwb_decoder_select="lsp"
1942 amv_decoder_select="sp5x_decoder"
1943 ape_decoder_select="bswapdsp"
1944 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1945 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1946 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1947 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1948 atrac1_decoder_select="mdct sinewin"
1949 atrac3_decoder_select="mdct"
1950 atrac3p_decoder_select="mdct sinewin"
1951 bink_decoder_select="blockdsp hpeldsp"
1952 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1953 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1954 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1955 cllc_decoder_select="bswapdsp"
1956 comfortnoise_encoder_select="lpc"
1957 cook_decoder_select="audiodsp mdct sinewin"
1958 cscd_decoder_select="lzo"
1959 cscd_decoder_suggest="zlib"
1960 dca_decoder_select="fmtconvert mdct"
1961 dds_decoder_select="texturedsp"
1962 dnxhd_decoder_select="blockdsp idctdsp"
1963 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1964 dvvideo_decoder_select="dvprofile idctdsp"
1965 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1966 dxa_decoder_deps="zlib"
1967 dxv_decoder_select="lzf texturedsp"
1968 eac3_decoder_select="ac3_decoder"
1969 eac3_encoder_select="ac3_encoder"
1970 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1971 eatgq_decoder_select="aandcttables idctdsp"
1972 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1973 exr_decoder_deps="zlib"
1974 ffv1_decoder_select="rangecoder"
1975 ffv1_encoder_select="rangecoder"
1976 ffvhuff_decoder_select="huffyuv_decoder"
1977 ffvhuff_encoder_select="huffyuv_encoder"
1978 fic_decoder_select="golomb"
1979 flac_decoder_select="flacdsp"
1980 flac_encoder_select="bswapdsp flacdsp lpc"
1981 flashsv_decoder_deps="zlib"
1982 flashsv_encoder_deps="zlib"
1983 flashsv2_decoder_deps="zlib"
1984 flv_decoder_select="h263_decoder"
1985 flv_encoder_select="h263_encoder"
1986 fourxm_decoder_select="blockdsp bswapdsp"
1987 fraps_decoder_select="bswapdsp huffman"
1988 g2m_decoder_deps="zlib"
1989 g2m_decoder_select="blockdsp idctdsp jpegtables"
1990 h261_decoder_select="mpeg_er mpegvideo"
1991 h261_encoder_select="aandcttables mpegvideoenc"
1992 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1993 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1994 h263i_decoder_select="h263_decoder"
1995 h263p_encoder_select="h263_encoder"
1996 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
1997 h264_decoder_suggest="error_resilience"
1998 hap_decoder_select="snappy texturedsp"
1999 hap_encoder_deps="libsnappy"
2000 hap_encoder_select="texturedspenc"
2001 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2002 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2003 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2004 iac_decoder_select="imc_decoder"
2005 imc_decoder_select="bswapdsp fft mdct sinewin"
2006 indeo3_decoder_select="hpeldsp"
2007 indeo4_decoder_select="ividsp"
2008 indeo5_decoder_select="ividsp"
2009 interplay_video_decoder_select="hpeldsp"
2010 jpegls_decoder_select="mjpeg_decoder"
2011 jv_decoder_select="blockdsp"
2012 lagarith_decoder_select="huffyuvdsp"
2013 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2014 magicyuv_decoder_select="huffyuvdsp"
2015 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2016 metasound_decoder_select="lsp mdct sinewin"
2017 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2018 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2019 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2020 mjpegb_decoder_select="mjpeg_decoder"
2021 mlp_decoder_select="mlp_parser"
2022 motionpixels_decoder_select="bswapdsp"
2023 mp1_decoder_select="mpegaudio"
2024 mp1float_decoder_select="mpegaudio"
2025 mp2_decoder_select="mpegaudio"
2026 mp2float_decoder_select="mpegaudio"
2027 mp3_decoder_select="mpegaudio"
2028 mp3adu_decoder_select="mpegaudio"
2029 mp3adufloat_decoder_select="mpegaudio"
2030 mp3float_decoder_select="mpegaudio"
2031 mp3on4_decoder_select="mpegaudio"
2032 mp3on4float_decoder_select="mpegaudio"
2033 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2034 mpc8_decoder_select="mpegaudiodsp"
2035 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2036 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2037 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2038 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2039 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2040 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2041 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2042 mpeg4_encoder_select="h263_encoder"
2043 msa1_decoder_select="mss34dsp"
2044 msmpeg4v1_decoder_select="h263_decoder"
2045 msmpeg4v2_decoder_select="h263_decoder"
2046 msmpeg4v2_encoder_select="h263_encoder"
2047 msmpeg4v3_decoder_select="h263_decoder"
2048 msmpeg4v3_encoder_select="h263_encoder"
2049 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2050 mts2_decoder_select="mss34dsp"
2051 mxpeg_decoder_select="mjpeg_decoder"
2052 nellymoser_decoder_select="mdct sinewin"
2053 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2054 nuv_decoder_select="idctdsp lzo"
2055 on2avc_decoder_select="mdct"
2056 opus_decoder_deps="avresample"
2057 opus_decoder_select="imdct15"
2058 png_decoder_deps="zlib"
2059 png_encoder_deps="zlib"
2060 png_encoder_select="huffyuvencdsp"
2061 prores_decoder_select="idctdsp"
2062 prores_encoder_select="fdctdsp"
2063 qcelp_decoder_select="lsp"
2064 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2065 ra_144_encoder_select="audio_frame_queue lpc"
2066 ralf_decoder_select="golomb"
2067 rscc_decoder_deps="zlib"
2068 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2069 rv10_encoder_select="h263_encoder"
2070 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2071 rv20_encoder_select="h263_encoder"
2072 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2073 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2074 screenpresso_decoder_deps="zlib"
2075 sipr_decoder_select="lsp"
2076 sp5x_decoder_select="mjpeg_decoder"
2077 svq1_decoder_select="hpeldsp"
2078 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2079 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2080 svq3_decoder_suggest="zlib"
2081 tak_decoder_select="audiodsp"
2082 tdsc_decoder_deps="zlib"
2083 tdsc_decoder_select="mjpeg_decoder"
2084 theora_decoder_select="vp3_decoder"
2085 thp_decoder_select="mjpeg_decoder"
2086 tiff_decoder_suggest="zlib"
2087 tiff_encoder_suggest="zlib"
2088 truehd_decoder_select="mlp_decoder"
2089 truemotion2_decoder_select="bswapdsp"
2090 truespeech_decoder_select="bswapdsp"
2091 tscc_decoder_deps="zlib"
2092 txd_decoder_select="texturedsp"
2093 twinvq_decoder_select="mdct lsp sinewin"
2094 utvideo_decoder_select="bswapdsp"
2095 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2096 vble_decoder_select="huffyuvdsp"
2097 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2098 vc1image_decoder_select="vc1_decoder"
2099 vorbis_decoder_select="mdct"
2100 vorbis_encoder_select="mdct"
2101 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2102 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2103 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2104 vp6a_decoder_select="vp6_decoder"
2105 vp6f_decoder_select="vp6_decoder"
2106 vp7_decoder_select="h264pred videodsp vp8dsp"
2107 vp8_decoder_select="h264pred videodsp vp8dsp"
2108 vp9_decoder_select="videodsp"
2109 webp_decoder_select="vp8_decoder"
2110 wmapro_decoder_select="mdct sinewin wma_freqs"
2111 wmav1_decoder_select="mdct sinewin wma_freqs"
2112 wmav1_encoder_select="mdct sinewin wma_freqs"
2113 wmav2_decoder_select="mdct sinewin wma_freqs"
2114 wmav2_encoder_select="mdct sinewin wma_freqs"
2115 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2116 wmv1_decoder_select="h263_decoder"
2117 wmv1_encoder_select="h263_encoder"
2118 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2119 wmv2_encoder_select="h263_encoder wmv2dsp"
2120 wmv3_decoder_select="vc1_decoder"
2121 wmv3image_decoder_select="wmv3_decoder"
2122 zerocodec_decoder_deps="zlib"
2123 zlib_decoder_deps="zlib"
2124 zlib_encoder_deps="zlib"
2125 zmbv_decoder_deps="zlib"
2126 zmbv_encoder_deps="zlib"
2128 # hardware accelerators
2129 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2130 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2131 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2132 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2134 h263_vaapi_hwaccel_deps="vaapi"
2135 h263_vaapi_hwaccel_select="h263_decoder"
2136 h264_d3d11va_hwaccel_deps="d3d11va"
2137 h264_d3d11va_hwaccel_select="h264_decoder"
2138 h264_dxva2_hwaccel_deps="dxva2"
2139 h264_dxva2_hwaccel_select="h264_decoder"
2140 h264_mmal_hwaccel_deps="mmal"
2141 h264_qsv_hwaccel_deps="libmfx"
2142 h264_vaapi_hwaccel_deps="vaapi"
2143 h264_vaapi_hwaccel_select="h264_decoder"
2144 h264_vda_hwaccel_deps="vda"
2145 h264_vda_hwaccel_select="h264_decoder"
2146 h264_vda_old_hwaccel_deps="vda"
2147 h264_vda_old_hwaccel_select="h264_decoder"
2148 h264_vdpau_hwaccel_deps="vdpau"
2149 h264_vdpau_hwaccel_select="h264_decoder"
2150 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2151 hevc_d3d11va_hwaccel_select="hevc_decoder"
2152 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2153 hevc_dxva2_hwaccel_select="hevc_decoder"
2154 hevc_qsv_hwaccel_deps="libmfx"
2155 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2156 hevc_vdpau_hwaccel_select="hevc_decoder"
2157 mpeg1_vdpau_hwaccel_deps="vdpau"
2158 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2159 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2160 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2161 mpeg2_dxva2_hwaccel_deps="dxva2"
2162 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2163 mpeg2_mmal_hwaccel_deps="mmal"
2164 mpeg2_qsv_hwaccel_deps="libmfx"
2165 mpeg2_vaapi_hwaccel_deps="vaapi"
2166 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2167 mpeg2_vdpau_hwaccel_deps="vdpau"
2168 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
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_hwaccel_deps="mmal"
2178 vc1_qsv_hwaccel_deps="libmfx"
2179 vc1_vaapi_hwaccel_deps="vaapi"
2180 vc1_vaapi_hwaccel_select="vc1_decoder"
2181 vc1_vdpau_hwaccel_deps="vdpau"
2182 vc1_vdpau_hwaccel_select="vc1_decoder"
2183 vp8_qsv_hwaccel_deps="libmfx"
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'
2196 omx_rpi_select="omx"
2199 vaapi_encode_deps="vaapi"
2201 hwupload_cuda_filter_deps="cuda"
2202 scale_npp_filter_deps="cuda libnpp"
2204 h264_mmal_decoder_deps="mmal"
2205 h264_nvenc_encoder_deps="nvenc"
2206 h264_omx_encoder_deps="omx"
2207 h264_qsv_decoder_deps="libmfx"
2208 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2209 h264_qsv_encoder_deps="libmfx"
2210 h264_qsv_encoder_select="qsvenc"
2211 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2212 h264_vaapi_encoder_select="vaapi_encode golomb"
2213 hevc_nvenc_encoder_deps="nvenc"
2214 hevc_qsv_decoder_deps="libmfx"
2215 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2216 hevc_qsv_encoder_deps="libmfx"
2217 hevc_qsv_encoder_select="hevc_ps qsvenc"
2218 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2219 hevc_vaapi_encoder_select="vaapi_encode golomb"
2220 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2221 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2222 mpeg2_mmal_decoder_deps="mmal"
2223 mpeg2_qsv_decoder_deps="libmfx"
2224 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2225 mpeg2_qsv_encoder_deps="libmfx"
2226 mpeg2_qsv_encoder_select="qsvenc"
2227 mpeg4_omx_encoder_deps="omx"
2228 vc1_mmal_decoder_deps="mmal"
2229 vc1_qsv_decoder_deps="libmfx"
2230 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2231 vp8_qsv_decoder_deps="libmfx"
2232 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2234 nvenc_h264_encoder_select="h264_nvenc_encoder"
2235 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2238 h264_parser_select="golomb h264dsp h264parse"
2239 hevc_parser_select="hevc_ps"
2240 mpegaudio_parser_select="mpegaudioheader"
2241 mpegvideo_parser_select="mpegvideo"
2242 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2243 vc1_parser_select="vc1dsp"
2246 mjpeg2jpeg_bsf_select="jpegtables"
2248 # external libraries
2249 avisynth_deps="LoadLibrary"
2250 avxsynth_deps="dlopen"
2251 avisynth_demuxer_deps_any="avisynth avxsynth"
2252 avisynth_demuxer_select="riffdec"
2253 libdcadec_decoder_deps="libdcadec"
2254 libfaac_encoder_deps="libfaac"
2255 libfaac_encoder_select="audio_frame_queue"
2256 libfdk_aac_decoder_deps="libfdk_aac"
2257 libfdk_aac_encoder_deps="libfdk_aac"
2258 libfdk_aac_encoder_select="audio_frame_queue"
2259 libgsm_decoder_deps="libgsm"
2260 libgsm_encoder_deps="libgsm"
2261 libgsm_ms_decoder_deps="libgsm"
2262 libgsm_ms_encoder_deps="libgsm"
2263 libilbc_decoder_deps="libilbc"
2264 libilbc_encoder_deps="libilbc"
2265 libkvazaar_encoder_deps="libkvazaar"
2266 libmp3lame_encoder_deps="libmp3lame"
2267 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2268 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2269 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2270 libopencore_amrnb_encoder_select="audio_frame_queue"
2271 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2272 libopenh264_decoder_deps="libopenh264"
2273 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2274 libopenh264_encoder_deps="libopenh264"
2275 libopenjpeg_decoder_deps="libopenjpeg"
2276 libopenjpeg_encoder_deps="libopenjpeg"
2277 libopus_decoder_deps="libopus"
2278 libopus_encoder_deps="libopus"
2279 libopus_encoder_select="audio_frame_queue"
2280 libschroedinger_decoder_deps="libschroedinger"
2281 libschroedinger_encoder_deps="libschroedinger"
2282 libspeex_decoder_deps="libspeex"
2283 libspeex_encoder_deps="libspeex"
2284 libspeex_encoder_select="audio_frame_queue"
2285 libtheora_encoder_deps="libtheora"
2286 libtwolame_encoder_deps="libtwolame"
2287 libvo_aacenc_encoder_deps="libvo_aacenc"
2288 libvo_aacenc_encoder_select="audio_frame_queue"
2289 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2290 libvorbis_encoder_deps="libvorbis"
2291 libvorbis_encoder_select="audio_frame_queue"
2292 libvpx_vp8_decoder_deps="libvpx"
2293 libvpx_vp8_encoder_deps="libvpx"
2294 libvpx_vp9_decoder_deps="libvpx"
2295 libvpx_vp9_encoder_deps="libvpx"
2296 libwavpack_encoder_deps="libwavpack"
2297 libwavpack_encoder_select="audio_frame_queue"
2298 libwebp_encoder_deps="libwebp"
2299 libx262_encoder_deps="libx262"
2300 libx264_encoder_deps="libx264"
2301 libx265_encoder_deps="libx265"
2302 libxavs_encoder_deps="libxavs"
2303 libxvid_encoder_deps="libxvid mkstemp"
2306 ac3_demuxer_select="ac3_parser"
2307 asf_demuxer_select="riffdec"
2308 asf_muxer_select="riffenc"
2309 asf_stream_muxer_select="asf_muxer"
2310 avi_demuxer_select="iso_media riffdec"
2311 avi_muxer_select="riffenc"
2312 caf_demuxer_select="iso_media riffdec"
2313 dash_muxer_select="mp4_muxer"
2314 dirac_demuxer_select="dirac_parser"
2315 dv_demuxer_select="dvprofile"
2316 dv_muxer_select="dvprofile"
2317 dxa_demuxer_select="riffdec"
2318 eac3_demuxer_select="ac3_parser"
2319 f4v_muxer_select="mov_muxer"
2320 flac_demuxer_select="flac_parser"
2321 hds_muxer_select="flv_muxer"
2322 hls_muxer_select="mpegts_muxer"
2323 ipod_muxer_select="mov_muxer"
2324 ismv_muxer_select="mov_muxer"
2325 matroska_audio_muxer_select="matroska_muxer"
2326 matroska_demuxer_select="iso_media riffdec"
2327 matroska_demuxer_suggest="bzlib lzo zlib"
2328 matroska_muxer_select="iso_media riffenc"
2329 mmf_muxer_select="riffenc"
2330 mov_demuxer_select="iso_media riffdec"
2331 mov_demuxer_suggest="zlib"
2332 mov_muxer_select="iso_media riffenc rtpenc_chain"
2333 mp3_demuxer_select="mpegaudio_parser"
2334 mp3_muxer_select="mpegaudioheader"
2335 mp4_muxer_select="mov_muxer"
2336 mpegts_demuxer_select="iso_media"
2337 mpegts_muxer_select="adts_muxer latm_muxer"
2338 mpegtsraw_demuxer_select="mpegts_demuxer"
2339 mxf_d10_muxer_select="mxf_muxer"
2340 nut_muxer_select="riffenc"
2341 nuv_demuxer_select="riffdec"
2342 oga_muxer_select="ogg_muxer"
2343 ogg_demuxer_select="dirac_parse"
2344 opus_muxer_select="ogg_muxer"
2345 psp_muxer_select="mov_muxer"
2346 rtp_demuxer_select="sdp_demuxer"
2347 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2348 rtsp_demuxer_select="http_protocol rtpdec"
2349 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2350 sap_demuxer_select="sdp_demuxer"
2351 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2352 sdp_demuxer_select="rtpdec"
2353 smoothstreaming_muxer_select="ismv_muxer"
2354 spdif_muxer_select="aac_parser"
2355 spx_muxer_select="ogg_muxer"
2356 swf_demuxer_suggest="zlib"
2357 tak_demuxer_select="tak_parser"
2358 tg2_muxer_select="mov_muxer"
2359 tgp_muxer_select="mov_muxer"
2360 w64_demuxer_select="wav_demuxer"
2361 wav_demuxer_select="riffdec"
2362 wav_muxer_select="riffenc"
2363 webm_muxer_select="iso_media riffenc"
2364 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2365 wtv_demuxer_select="mpegts_demuxer riffdec"
2366 xmv_demuxer_select="riffdec"
2367 xwma_demuxer_select="riffdec"
2370 alsa_indev_deps="alsa"
2371 alsa_outdev_deps="alsa"
2372 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2373 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2374 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2375 dv1394_indev_deps="dv1394"
2376 dv1394_indev_select="dv_demuxer"
2377 fbdev_indev_deps="linux_fb_h"
2378 jack_indev_deps="jack"
2379 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2380 libcdio_indev_deps="libcdio"
2381 libdc1394_indev_deps="libdc1394"
2382 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2383 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2384 pulse_indev_deps="libpulse"
2385 sndio_indev_deps="sndio"
2386 sndio_outdev_deps="sndio"
2387 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2388 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2389 vfwcap_indev_extralibs="-lavicap32"
2390 xcbgrab_indev_deps="libxcb"
2393 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2394 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2395 ffrtmpcrypt_protocol_select="tcp_protocol"
2396 ffrtmphttp_protocol_deps="!librtmp_protocol"
2397 ffrtmphttp_protocol_select="http_protocol"
2398 gopher_protocol_select="network"
2399 http_protocol_select="tcp_protocol"
2400 httpproxy_protocol_select="tcp_protocol"
2401 https_protocol_select="tls_protocol"
2402 icecast_protocol_select="http_protocol"
2403 librtmp_protocol_deps="librtmp"
2404 librtmpe_protocol_deps="librtmp"
2405 librtmps_protocol_deps="librtmp"
2406 librtmpt_protocol_deps="librtmp"
2407 librtmpte_protocol_deps="librtmp"
2408 mmsh_protocol_select="http_protocol"
2409 mmst_protocol_select="network"
2410 rtmp_protocol_deps="!librtmp_protocol"
2411 rtmp_protocol_select="tcp_protocol"
2412 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2413 rtmps_protocol_deps="!librtmp_protocol"
2414 rtmps_protocol_select="tls_protocol"
2415 rtmpt_protocol_select="ffrtmphttp_protocol"
2416 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2417 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2418 rtp_protocol_select="udp_protocol"
2419 sctp_protocol_deps="struct_sctp_event_subscribe"
2420 sctp_protocol_select="network"
2421 srtp_protocol_select="rtp_protocol srtp"
2422 tcp_protocol_select="network"
2423 tls_gnutls_protocol_deps="gnutls"
2424 tls_gnutls_protocol_select="tcp_protocol"
2425 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2426 tls_openssl_protocol_select="tcp_protocol"
2427 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2428 udp_protocol_select="network"
2429 unix_protocol_deps="sys_un_h"
2430 unix_protocol_select="network"
2433 asyncts_filter_deps="avresample"
2434 blackframe_filter_deps="gpl"
2435 boxblur_filter_deps="gpl"
2436 bs2b_filter_deps="libbs2b"
2437 cropdetect_filter_deps="gpl"
2438 deinterlace_qsv_filter_deps="libmfx"
2439 delogo_filter_deps="gpl"
2440 drawtext_filter_deps="libfreetype"
2441 frei0r_filter_deps="frei0r dlopen"
2442 frei0r_filter_extralibs='$ldl'
2443 frei0r_src_filter_deps="frei0r dlopen"
2444 frei0r_src_filter_extralibs='$ldl'
2445 hdcd_filter_deps="libhdcd"
2446 hqdn3d_filter_deps="gpl"
2447 interlace_filter_deps="gpl"
2448 movie_filter_deps="avcodec avformat"
2449 ocv_filter_deps="libopencv"
2450 resample_filter_deps="avresample"
2451 scale_filter_deps="swscale"
2452 scale_qsv_filter_deps="libmfx"
2453 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2456 decode_audio_example_deps="avcodec avutil"
2457 decode_video_example_deps="avcodec avutil"
2458 encode_audio_example_deps="avcodec avutil"
2459 encode_video_example_deps="avcodec avutil"
2460 filter_audio_example_deps="avfilter avutil"
2461 metadata_example_deps="avformat avutil"
2462 output_example_deps="avcodec avformat avresample avutil swscale"
2463 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2464 transcode_aac_example_deps="avcodec avformat avresample"
2466 # libraries, in linking order
2467 avcodec_deps="avutil"
2468 avdevice_deps="avformat avcodec avutil"
2469 avfilter_deps="avutil"
2470 avformat_deps="avcodec avutil"
2471 avresample_deps="avutil"
2472 swscale_deps="avutil"
2475 avconv_deps="avcodec avfilter avformat avresample swscale"
2476 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2477 fps_filter null_filter resample_filter scale_filter
2479 avplay_deps="avcodec avfilter avformat avresample sdl"
2480 avplay_libs='$sdl_libs'
2481 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2482 avprobe_deps="avcodec avformat"
2486 texi2html_deps="doc"
2488 # default parameters
2490 logfile="config.log"
2492 # installation paths
2493 prefix_default="/usr/local"
2494 bindir_default='${prefix}/bin'
2495 datadir_default='${prefix}/share/avconv'
2496 docdir_default='${prefix}/share/doc/libav'
2497 incdir_default='${prefix}/include'
2498 libdir_default='${prefix}/lib'
2499 mandir_default='${prefix}/share/man'
2500 shlibdir_default="$libdir_default"
2505 host_cc_default="gcc"
2509 pkg_config_default=pkg-config
2512 version_script='--version-script'
2516 arch_default=$(uname -m)
2521 target_os_default=$(tolower $(uname -s))
2522 host_os=$target_os_default
2524 # configurable options
2525 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2530 enable faan faandct faanidct
2531 enable optimizations
2532 enable safe_bitstream_reader
2534 enable swscale_alpha
2535 enable valgrind_backtrace
2537 # By default, enable only those hwaccels that have no external dependencies.
2538 enable d3d11va dxva2 vda vdpau
2541 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2544 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2547 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2548 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2549 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2550 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2551 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2552 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2553 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2575 host_extralibs='-lm'
2576 host_cflags_filter=echo
2577 host_ldflags_filter=echo
2579 target_path='$(CURDIR)'
2581 # since the object filename is not given with the -MM flag, the compiler
2582 # is only able to print the basename, and we must add the path ourselves
2583 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2587 if test -f configure; then
2590 source_path=$(cd $(dirname "$0"); pwd)
2591 echo "$source_path" | grep -q '[[:blank:]]' &&
2592 die "Out of tree builds are impossible with whitespace in source path."
2593 test -e "$source_path/config.h" &&
2594 die "Out of tree builds are impossible with config.h in source dir."
2601 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2607 file=$source_path/$3
2608 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2611 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2612 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2613 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2614 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2615 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2616 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2617 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2618 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2619 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2621 find_things_extern(){
2624 file=$source_path/$3
2625 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2628 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2629 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2645 for n in $COMPONENT_LIST; do
2646 v=$(toupper ${n%s})_LIST
2648 eval ${n}_if_any="\$$v"
2651 enable $ARCH_EXT_LIST
2654 echo "Unknown option \"$1\"."
2655 echo "See $0 --help for available options."
2660 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2666 echo $* | sed s/$suffix//g | print_3_columns
2678 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2679 echo "prob ${prob:-0.5}"
2687 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2688 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2697 --extra-ldexeflags=*)
2698 add_ldexeflags $optval
2701 add_extralibs $optval
2704 disable $INDEV_LIST $OUTDEV_LIST
2707 debuglevel="$optval"
2710 disable $PROGRAM_LIST
2712 --disable-everything)
2713 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2716 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2717 disable $LIBRARY_LIST $PROGRAM_LIST doc
2719 --enable-random|--disable-random)
2720 action=${opt%%-random}
2721 do_random ${action#--} $COMPONENT_LIST
2723 --enable-random=*|--disable-random=*)
2724 action=${opt%%-random=*}
2725 do_random ${action#--} $optval
2727 --enable-*=*|--disable-*=*)
2728 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2729 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2730 eval list=\$$(toupper $thing)_LIST
2731 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2732 $action $(filter "$name" $list)
2734 --enable-avserver|--disable-avserver*)
2735 warn "avserver has been removed, the ${opt} option is only"\
2736 "provided for compatibility and will be removed in the future"
2738 --enable-?*|--disable-?*)
2739 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2740 if is_in $option $COMPONENT_LIST; then
2741 test $action = disable && action=unset
2742 eval $action \$$(toupper ${option%s})_LIST
2743 elif is_in $option $CMDLINE_SELECT; then
2750 NAME="${opt#--list-}"
2751 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2753 eval show_list $NAME \$$(toupper $NAME)_LIST
2755 --help|-h) show_help
2757 --quiet|-q) quiet=yes
2760 optname="${opt%%=*}"
2761 optname="${optname#--}"
2762 optname=$(echo "$optname" | sed 's/-/_/g')
2763 if is_in $optname $CMDLINE_SET; then
2764 eval $optname='$optval'
2765 elif is_in $optname $CMDLINE_APPEND; then
2766 append $optname "$optval"
2778 disabled logging && logfile=/dev/null
2780 # Die early if licensing-related configure options are incompatible.
2781 die_license_disabled() {
2782 enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2785 map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST
2786 map "die_license_disabled nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2787 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2789 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2791 # Disable all the library-specific components if the library itself
2792 # is disabled, see AVCODEC_LIST and following _LIST variables.
2794 disable_components(){
2795 disabled ${1} && disable $(
2796 eval components="\$$(toupper ${1})_COMPONENTS"
2797 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2801 map 'disable_components $v' $LIBRARY_LIST
2803 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2806 case "$toolchain" in
2808 cc_default="${toolchain%-asan}"
2809 add_cflags -fsanitize=address
2810 add_ldflags -fsanitize=address
2813 cc_default="${toolchain%-msan}"
2814 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2815 add_ldflags -fsanitize=memory
2818 cc_default="${toolchain%-tsan}"
2819 add_cflags -fsanitize=thread -fPIE
2820 add_ldflags -fsanitize=thread -pie
2821 case "$toolchain" in
2829 cc_default="${toolchain%-usan}"
2830 add_cflags -fsanitize=undefined
2831 add_ldflags -fsanitize=undefined
2832 case "$toolchain" in
2839 target_exec_default="valgrind"
2840 case "$toolchain" in
2842 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2845 target_exec_args="--track-origins=yes --leak-check=full"
2850 # Check whether the current MSVC version needs the C99 converter.
2851 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2852 # support enough of C99 to build libav. Default to the new
2853 # behaviour if the regexp was unable to match anything, since this
2854 # successfully parses the version number of existing supported
2855 # versions that require the converter (MSVC 2010 and 2012).
2856 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2857 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2860 cc_default="c99wrap cl"
2862 ld_default="$source_path/compat/windows/mslink"
2863 nm_default="dumpbin -symbols"
2870 target_os_default="win32"
2871 # Use a relative path for TMPDIR. This makes sure all the
2872 # ffconf temp files are written with a relative path, avoiding
2873 # issues with msys/win32 path conversion for MSVC parameters
2874 # such as -Fo<file> or -out:<file>.
2880 nm_default="dumpbin -symbols"
2882 target_os_default="win32"
2886 add_cflags -fprofile-arcs -ftest-coverage
2887 add_ldflags -fprofile-arcs -ftest-coverage
2890 add_cflags -fprofile-arcs -ftest-coverage
2891 add_ldflags --coverage
2894 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2895 add_cflags -fno-strict-overflow -fstack-protector-all
2896 add_ldflags -Wl,-z,relro -Wl,-z,now
2899 die "Unknown toolchain $toolchain"
2903 test -n "$cross_prefix" && enable cross_compile
2905 if enabled cross_compile; then
2906 test -n "$arch" && test -n "$target_os" ||
2907 die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
2910 ar_default="${cross_prefix}${ar_default}"
2911 cc_default="${cross_prefix}${cc_default}"
2912 occ_default="${cross_prefix}${occ_default}"
2913 nm_default="${cross_prefix}${nm_default}"
2914 pkg_config_default="${cross_prefix}${pkg_config_default}"
2915 ranlib="${cross_prefix}${ranlib}"
2916 strip="${cross_prefix}${strip}"
2918 sysinclude_default="${sysroot}/usr/include"
2920 set_default arch cc pkg_config sysinclude target_exec target_os
2921 enabled cross_compile || host_cc_default=$cc
2924 if ! $pkg_config --version >/dev/null 2>&1; then
2925 warn "$pkg_config not found, library detection may fail."
2931 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2935 EXESUF=$(exesuf $target_os)
2936 HOSTEXESUF=$(exesuf $host_os)
2938 # set temporary file name
2939 : ${TMPDIR:=$TEMPDIR}
2943 if ! check_cmd mktemp -u XXXXXX; then
2944 # simple replacement for missing mktemp
2945 # NOT SAFE FOR GENERAL USE
2947 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2952 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2953 (set -C; exec > $tmp) 2>/dev/null ||
2954 die "Unable to create temporary file in $TMPDIR."
2955 append TMPFILES $tmp
2959 trap 'rm -f -- $TMPFILES' EXIT
2963 tmpfile TMPE $EXESUF
2974 # make sure we can execute files in $TMPDIR
2975 cat > $TMPSH 2>> $logfile <<EOF
2978 chmod +x $TMPSH >> $logfile 2>&1
2979 if ! $TMPSH >> $logfile 2>&1; then
2981 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2982 variable to another directory and make sure that it is not mounted noexec.
2984 die "Sanity test failed."
2990 # Filter out MSVC cl.exe options from cflags that shouldn't
2991 # be passed to gas-preprocessor
3001 -std=c99) echo -c99 ;;
3002 -mcpu=*) echo -arch ${flag#*=} ;;
3003 -mieee) echo -ieee ;;
3004 -O*|-fast) echo $flag ;;
3005 -fno-math-errno) echo -assume nomath_errno ;;
3007 -Wall) echo -msg_enable level2 ;;
3008 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3009 -Wl,*) echo $flag ;;
3019 -Wno-switch) echo -Wno-switch-enum ;;
3020 -Wno-format-zero-length) ;;
3021 -Wdisabled-optimization) ;;
3022 -Wno-pointer-sign) echo -Wno-other ;;
3028 msvc_common_flags(){
3031 # In addition to specifying certain flags under the compiler
3032 # specific filters, they must be specified here as well or else the
3033 # generic catch all at the bottom will print the original flag.
3037 -fomit-frame-pointer) ;;
3041 -fno-signed-zeros) ;;
3045 -lz) echo zlib.lib ;;
3046 -lavicap32) echo vfw32.lib user32.lib ;;
3047 -lx264) echo libx264.lib ;;
3048 -l*) echo ${flag#-l}.lib ;;
3049 -L*) echo -libpath:${flag#-L} ;;
3056 msvc_common_flags "$@"
3059 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3060 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3061 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3062 -wd4273 -wd4554 -wd4701 -wd4703 ;;
3068 msvc_common_flags "$@"
3071 # Despite what Intel's documentation says -Wall, which is supported
3072 # on Windows, does enable remarks so disable them here.
3073 -Wall) echo $flag -Qdiag-disable:remark ;;
3074 -std=c99) echo -Qstd=c99 ;;
3082 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3083 -fomit-frame-pointer) echo -Mnoframe ;;
3094 case "${flag#*=}" in
3095 native) echo -xtarget=native ;;
3096 v9|niagara) echo -xarch=sparc ;;
3097 ultrasparc) echo -xarch=sparcvis ;;
3098 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3099 i586|pentium) echo -xchip=pentium ;;
3100 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3101 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3102 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3103 pentium4*) echo -xtarget=pentium4 ;;
3104 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3105 *-sse3) echo -xarch=sse3 ;;
3106 core2) echo -xarch=ssse3 -xchip=core2 ;;
3107 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3108 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3109 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3110 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3111 k8|opteron|athlon64|athlon-fx)
3112 echo -xarch=sse2a ;;
3113 athlon*) echo -xarch=pentium_proa ;;
3116 -std=c99) echo -xc99 ;;
3117 -fomit-frame-pointer) echo -xregs=frameptr ;;
3118 -fPIC) echo -KPIC -xcode=pic32 ;;
3119 -W*,*) echo $flag ;;
3120 -f*-*|-W*|-mimpure-text) ;;
3131 case "${flag#*=}" in
3132 armv7-a|cortex-a*) echo -mv=7a8 ;;
3133 armv7-r|cortex-r*) echo -mv=7r4 ;;
3134 armv7-m|cortex-m*) echo -mv=7m3 ;;
3135 armv6*|arm11*) echo -mv=6 ;;
3136 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3138 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3141 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3142 -mfpu=vfp) echo --float_support=vfpv2 ;;
3143 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3144 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3145 -msoft-float) echo --float_support=vfplib ;;
3146 -O[0-3]|-mf=*) echo $flag ;;
3148 -pds=*) echo $flag ;;
3149 -D*|-I*) echo $flag ;;
3150 --gcc|--abi=*) echo $flag ;;
3160 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3161 unset _ld_o _ldflags _ld_lib _ld_path
3162 unset _depflags _DEPCMD _DEPFLAGS
3165 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3167 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3168 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3169 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3172 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3174 gcc_version=$($_cc --version | head -n1)
3175 gcc_basever=$($_cc -dumpversion)
3176 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3177 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3178 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3179 if ! $_cc -dumpversion | grep -q '^2\.'; then
3180 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3184 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3186 _ident=$($_cc --version | head -n1)
3191 elif $_cc -v 2>&1 | grep -q xlc; then
3193 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3195 _cflags_size='-O5 -qcompact'
3196 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3198 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3200 _cflags_speed='-fast'
3202 _flags_filter=ccc_flags
3203 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3204 test -d "$sysroot" || die "No valid sysroot specified."
3206 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3207 armcc_conf="$PWD/armcc.conf"
3208 $_cc --arm_linux_configure \
3209 --arm_linux_config_file="$armcc_conf" \
3210 --configure_sysroot="$sysroot" \
3211 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3212 die "Error creating armcc configuration file."
3213 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3214 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3215 as_default="${cross_prefix}gcc"
3219 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3221 _ident=$($_cc -version | head -n1 | tr -s ' ')
3222 _flags='--gcc --abi=eabi -me'
3225 _depflags='-ppa -ppd=$(@:.o=.d)'
3226 _cflags_speed='-O3 -mf=5'
3227 _cflags_size='-O3 -mf=2'
3228 _flags_filter=tms470_flags
3229 elif $_cc -v 2>&1 | grep -q clang; then
3231 _ident=$($_cc --version 2>/dev/null | head -n1)
3232 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3235 elif $_cc -V 2>&1 | grep -q Sun; then
3237 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3238 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3239 _DEPFLAGS='-xM1 -xc99'
3242 _cflags_size='-O5 -xspace'
3243 _flags_filter=suncc_flags
3244 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3246 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3247 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3250 _flags_filter='filter_out -Wdisabled-optimization'
3251 elif $_cc -v 2>&1 | grep -q Open64; then
3253 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3254 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3257 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3258 elif $_cc -V 2>&1 | grep -q Portland; then
3260 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3261 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3262 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3263 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3265 _flags_filter=pgi_flags
3266 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3268 _ident=$($_cc | head -n1)
3269 # 4509: "This form of conditional instruction is deprecated"
3270 _flags="-nologo -ignore 4509"
3271 _flags_filter=armasm_flags
3272 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3274 _ident=$($_cc 2>&1 | head -n1)
3275 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3276 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3279 if $_cc -nologo- 2>&1 | grep -q Linker; then
3286 _flags_filter=msvc_flags
3288 _ld_path='-libpath:'
3290 elif $_cc 2>&1 | grep -q Intel; then
3292 _ident=$($_cc 2>&1 | head -n1)
3293 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3294 # Not only is O3 broken on 13.x+ but it is slower on all previous
3295 # versions (tested) as well.
3297 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3298 if $_cc 2>&1 | grep -q Linker; then
3305 _flags_filter=icl_flags
3307 _ld_path='-libpath:'
3308 # -Qdiag-error to make icl error when seeing certain unknown arguments
3309 _flags='-nologo -Qdiag-error:4044,10157'
3310 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3311 # with MSVC which enables it by default.
3312 _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3313 elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3314 # lld can emulate multiple different linkers; in ms link.exe mode,
3315 # the -? parameter gives the help output which contains an identifyable
3316 # string, while it gives an error in other modes.
3318 # The link.exe mode doesn't have a switch for getting the version,
3319 # but we can force it back to gnu mode and get the version from there.
3320 _ident=$($_cc -flavor gnu --version 2>/dev/null)
3322 _flags_filter=msvc_flags
3324 _ld_path='-libpath:'
3325 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3327 _ident=$($_cc --version | head -n1)
3331 _flags_filter=cparser_flags
3334 eval ${pfx}_type=\$_type
3335 eval ${pfx}_ident=\$_ident
3339 eval ${1}_C=\${_cc_c-\${${1}_C}}
3340 eval ${1}_E=\${_cc_e-\${${1}_E}}
3341 eval ${1}_O=\${_cc_o-\${${1}_O}}
3343 if [ -n "$_depflags" ]; then
3344 eval ${1}_DEPFLAGS=\$_depflags
3346 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3347 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3348 eval DEP${1}FLAGS=\$_flags
3353 cflags_filter=$_flags_filter
3354 cflags_speed=$_cflags_speed
3355 cflags_size=$_cflags_size
3356 cflags_noopt=$_cflags_noopt
3357 add_cflags $_flags $_cflags
3358 cc_ldflags=$_ldflags
3361 probe_cc hostcc "$host_cc"
3362 host_cflags_filter=$_flags_filter
3363 add_host_cflags $_flags $_cflags
3366 test -n "$cc_type" && enable $cc_type ||
3367 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3369 : ${as_default:=$cc}
3370 : ${objcc_default:=$cc}
3371 : ${dep_cc_default:=$cc}
3372 : ${ld_default:=$cc}
3373 : ${host_ld_default:=$host_cc}
3374 set_default ar as objcc dep_cc ld host_ld
3377 asflags_filter=$_flags_filter
3378 add_asflags $_flags $_cflags
3381 probe_cc objcc "$objcc"
3382 objcflags_filter=$_flags_filter
3383 add_objcflags $_flags $_cflags
3387 ldflags_filter=$_flags_filter
3388 add_ldflags $_flags $_ldflags
3389 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3391 LD_LIB=${_ld_lib-$LD_LIB}
3392 LD_PATH=${_ld_path-$LD_PATH}
3394 probe_cc hostld "$host_ld"
3395 host_ldflags_filter=$_flags_filter
3396 add_host_ldflags $_flags $_ldflags
3397 HOSTLD_O=${_ld_o-$HOSTLD_O}
3399 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3400 probe_cc depcc "$dep_cc"
3401 CCDEP=${_DEPCMD:-$DEPCMD}
3402 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3406 if $ar 2>&1 | grep -q Microsoft; then
3409 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3412 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3413 arflags='-Xany -r -c'
3420 add_cflags $extra_cflags
3421 add_objcflags $extra_objcflags
3422 add_asflags $extra_cflags
3424 if test -n "$sysroot"; then
3427 add_cppflags --sysroot="$sysroot"
3428 add_ldflags --sysroot="$sysroot"
3431 add_cppflags -I"$sysinclude"
3432 add_ldflags --sysroot="$sysroot"
3437 if test "$cpu" = host; then
3438 enabled cross_compile &&
3439 die "--cpu=host makes no sense when cross-compiling."
3444 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3446 s/.*$1=\\([^ ]*\\).*/\\1/
3451 cpu=$(check_native -march || check_native -mcpu)
3455 test "${cpu:-host}" = host &&
3456 die "--cpu=host not supported with compiler $cc"
3459 # Deal with common $arch aliases
3483 "Power Macintosh"|ppc*|powerpc*)
3498 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3503 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3506 # Add processor-specific flags
3507 if enabled aarch64; then
3511 cpuflags="-march=$cpu"
3514 cpuflags="-mcpu=$cpu"
3518 elif enabled alpha; then
3520 cpuflags="-mcpu=$cpu"
3522 elif enabled arm; then
3525 check_cpp_condition stddef.h \
3526 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3531 if check_arm_arch 4; then echo armv4
3532 elif check_arm_arch 4T; then echo armv4t
3533 elif check_arm_arch 5; then echo armv5
3534 elif check_arm_arch 5E; then echo armv5e
3535 elif check_arm_arch 5T; then echo armv5t
3536 elif check_arm_arch 5TE; then echo armv5te
3537 elif check_arm_arch 5TEJ; then echo armv5te
3538 elif check_arm_arch 6; then echo armv6
3539 elif check_arm_arch 6J; then echo armv6j
3540 elif check_arm_arch 6K; then echo armv6k
3541 elif check_arm_arch 6Z; then echo armv6z
3542 elif check_arm_arch 6ZK; then echo armv6zk
3543 elif check_arm_arch 6T2; then echo armv6t2
3544 elif check_arm_arch 7; then echo armv7
3545 elif check_arm_arch 7A 7_A; then echo armv7-a
3546 elif check_arm_arch 7S; then echo armv7-a
3547 elif check_arm_arch 7R 7_R; then echo armv7-r
3548 elif check_arm_arch 7M 7_M; then echo armv7-m
3549 elif check_arm_arch 7EM 7E_M; then echo armv7-m
3550 elif check_arm_arch 8A 8_A; then echo armv8-a
3554 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3558 cpuflags="-march=$cpu"
3559 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3562 cpuflags="-mcpu=$cpu"
3564 cortex-a*) subarch=armv7a ;;
3565 cortex-r*) subarch=armv7r ;;
3566 cortex-m*) enable thumb; subarch=armv7m ;;
3567 arm11*) subarch=armv6 ;;
3568 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3569 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3570 *) subarch=$(probe_arm_arch) ;;
3576 armv5t*) enable fast_clz ;;
3577 armv[6-8]*) enable fast_clz fast_unaligned ;;
3580 elif enabled avr32; then
3585 cpuflags="-mpart=$cpu"
3589 cpuflags="-march=$cpu"
3593 cpuflags="-mcpu=$cpu"
3597 cpuflags="-march=$cpu"
3601 elif enabled bfin; then
3603 cpuflags="-mcpu=$cpu"
3605 elif enabled mips; then
3607 cpuflags="-march=$cpu"
3609 elif enabled ppc; then
3613 case $(tolower $cpu) in
3614 601|ppc601|powerpc601)
3615 cpuflags="-mcpu=601"
3618 603*|ppc603*|powerpc603*)
3619 cpuflags="-mcpu=603"
3622 604*|ppc604*|powerpc604*)
3623 cpuflags="-mcpu=604"
3626 g3|75*|ppc75*|powerpc75*)
3627 cpuflags="-mcpu=750"
3630 g4|745*|ppc745*|powerpc745*)
3631 cpuflags="-mcpu=7450"
3634 74*|ppc74*|powerpc74*)
3635 cpuflags="-mcpu=7400"
3638 g5|970|ppc970|powerpc970)
3639 cpuflags="-mcpu=970"
3643 cpuflags="-mcpu=$cpu"
3647 cpuflags="-mcpu=$cpu"
3651 cpuflags="-mcpu=cell"
3656 cpuflags="-mcpu=e500mc"
3660 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3665 cpuflags="-mcpu=8540 -mhard-float"
3671 elif enabled sparc; then
3674 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3675 cpuflags="-mcpu=$cpu"
3677 ultrasparc*|niagara[234])
3678 cpuflags="-mcpu=$cpu"
3682 elif enabled x86; then
3686 cpuflags="-march=$cpu"
3690 # targets that do NOT support nopl and conditional mov (cmov)
3691 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3692 cpuflags="-march=$cpu"
3695 # targets that do support nopl and conditional mov (cmov)
3696 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3697 cpuflags="-march=$cpu"
3701 # targets that do support conditional mov but on which it's slow
3702 pentium4|pentium4m|prescott|nocona)
3703 cpuflags="-march=$cpu"
3711 if [ "$cpu" != generic ]; then
3712 add_cflags $cpuflags
3713 add_asflags $cpuflags
3714 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3717 # compiler sanity check
3719 int main(void){ return 0; }
3721 if test "$?" != 0; then
3722 echo "$cc is unable to create an executable file."
3723 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3724 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3725 echo "Only do this if you know what cross compiling means."
3727 die "C compiler test failed."
3730 add_cppflags -D_ISOC99_SOURCE
3732 # some compilers silently accept -std=c11, so we also need to check that the
3733 # version macro is defined properly
3734 if test_cflags_cpp -std=c11 "__STDC_VERSION__ >= 201112L"; then
3737 check_cflags -std=c99
3740 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3743 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3747 add_host_cppflags -D_ISOC99_SOURCE
3748 check_host_cflags -std=c99
3749 check_host_cflags -Wall
3750 check_host_cflags -O3
3756 check_code cc "" "int test[2*($expr) - 1]" &&
3757 subarch=$arch64 || subarch=$arch32
3765 check_64bit mips mips64 '_MIPS_SIM > 1'
3769 check_64bit parisc parisc64 'sizeof(void *) > 4'
3773 check_64bit ppc ppc64 'sizeof(void *) > 4'
3777 check_64bit s390 s390x 'sizeof(void *) > 4'
3781 check_64bit sparc sparc64 'sizeof(void *) > 4'
3785 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3786 if test "$subarch" = "x86_64"; then
3793 enabled spic && enable_weak pic
3799 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3800 enabled shared && add_ldflags -Wl,-brtl
3804 enable section_data_rel_ro
3805 SLIB_INSTALL_NAME='$(SLIBNAME)'
3807 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3810 prefix_default="/boot/common"
3811 network_extralibs="-lnetwork"
3815 SHFLAGS='-shared -Wl,-h,$$(@F)'
3816 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3817 network_extralibs="-lsocket -lnsl"
3818 # When using suncc to build, the Solaris linker will mark
3819 # an executable with each instruction set encountered by
3820 # the Solaris assembler. As our libraries contain their own
3821 # guards for processor-specific code, instead suppress
3822 # generation of the HWCAPS ELF section on Solaris x86 only.
3823 enabled_all suncc x86 &&
3824 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3825 add_ldflags -Wl,-M,mapfile
3826 nm_default='nm -P -g'
3828 VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3832 oss_indev_extralibs="-lossaudio"
3833 oss_outdev_extralibs="-lossaudio"
3838 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3840 oss_indev_extralibs="-lossaudio"
3841 oss_outdev_extralibs="-lossaudio"
3849 add_extralibs -lpoll -lgnugetopt
3852 enabled ppc && add_asflags -force_cpusubtype_ALL
3853 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3854 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3855 add_ldflags -Wl,-dynamic,-search_paths_first
3857 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3858 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3860 enabled x86_64 && objformat="macho64"
3861 enabled_any pic shared ||
3862 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3863 check_header dispatch/dispatch.h &&
3864 add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3867 die "Native MSYS builds are discouraged, please use the MINGW environment."
3870 if test $target_os = "mingw32ce"; then
3876 if enabled x86_64; then
3877 LIBTARGET="i386:x86-64"
3878 elif enabled arm; then
3881 check_ldflags -Wl,--nxcompat
3882 check_ldflags -Wl,--dynamicbase
3883 shlibdir_default="$bindir_default"
3886 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3887 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3888 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3889 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3891 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3892 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3893 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3895 dlltool="${cross_prefix}dlltool"
3901 if enabled shared; then
3902 # Link to the import library instead of the normal static library
3905 # Cannot build both shared and static libs with MSVC or icl.
3908 shlibdir_default="$bindir_default"
3911 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3912 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3913 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3914 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3916 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3917 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3918 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3925 shlibdir_default="$bindir_default"
3928 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3929 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
3930 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3932 SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
3933 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
3937 *-dos|freedos|opendos)
3938 network_extralibs="-lsocket"
3941 add_cppflags -U__STRICT_ANSI__
3945 enable section_data_rel_ro
3949 ranlib="echo ignoring ranlib"
3954 add_cppflags -D_GNU_SOURCE
3955 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3956 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3960 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3961 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3962 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3963 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3964 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3965 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3966 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3967 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3968 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3969 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3973 add_cppflags -D_BSD_SOURCE
3978 add_cppflags -D_QNX_SOURCE
3979 network_extralibs="-lsocket"
3984 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3985 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3986 add_ldflags -Wl,--target1-abs,--no-undefined \
3987 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3988 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3989 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3990 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3991 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3994 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4001 die "Unknown OS '$target_os'."
4005 # determine libc flavour
4010 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4011 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4012 eval ${pfx}libc_type=uclibc
4013 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4014 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4015 eval ${pfx}libc_type=glibc
4016 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4017 # MinGW headers can be installed on Cygwin, so check for newlib first.
4018 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4019 eval ${pfx}libc_type=newlib
4020 add_${pfx}cppflags -U__STRICT_ANSI__
4021 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4022 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4023 eval ${pfx}libc_type=mingw64
4024 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4025 eval test \$${pfx_no_}cc_type = "gcc" &&
4026 add_${pfx}cppflags -D__printf__=__gnu_printf__
4027 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4028 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4029 eval ${pfx}libc_type=mingw32
4030 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4031 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4032 die "ERROR: MinGW32 runtime version must be >= 3.15."
4033 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4034 check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700__" &&
4035 add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4036 eval test \$${pfx_no_}cc_type = "gcc" &&
4037 add_${pfx}cppflags -D__printf__=__gnu_printf__
4038 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4039 eval ${pfx}libc_type=msvcrt
4040 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4041 if [ "$pfx" = host_ ]; then
4042 add_host_cppflags -Dsnprintf=_snprintf
4044 add_compat strtod.o strtod=avpriv_strtod
4045 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4046 _snprintf=avpriv_snprintf \
4047 vsnprintf=avpriv_vsnprintf
4050 add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4051 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4052 # 0x601 by default unless something else is set by the user.
4053 # This can easily lead to us detecting functions only present
4054 # in such new versions and producing binaries requiring windows 7.0.
4055 # Therefore explicitly set the default to XP unless the user has
4056 # set something else on the command line.
4057 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4058 # family. For these cases, configure is free to use any functions
4059 # found in the SDK headers by default. (Alternatively, we could force
4060 # _WIN32_WINNT to 0x0602 in that case.)
4061 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4062 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4063 #ifdef WINAPI_FAMILY
4064 #include <winapifamily.h>
4065 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4070 if [ "$pfx" = "" ]; then
4071 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4073 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4074 eval ${pfx}libc_type=klibc
4075 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4076 eval ${pfx}libc_type=bionic
4077 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4078 eval ${pfx}libc_type=solaris
4079 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4081 eval ${pfx}libc_type=default
4082 add_${pfx}cppflags -D_DEFAULT_SOURCE
4087 test -n "$libc_type" && enable libc_$libc_type
4089 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4093 add_compat strtod.o strtod=avpriv_strtod
4097 # hacks for compiler/libc/os combinations
4099 if enabled_all tms470 libc_glibc; then
4100 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4101 add_cppflags -D__USER_LABEL_PREFIX__=
4102 add_cppflags -D__builtin_memset=memset
4103 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4104 add_cflags -pds=48 # incompatible redefinition of macro
4107 if enabled_all ccc libc_glibc; then
4108 add_ldflags -Wl,-z,now # calls to libots crash without this
4111 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4112 add_cppflags '-I\$(SRC_PATH)/compat/float'
4115 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4118 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4120 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4122 set_default $PATHS_LIST
4125 # we need to build at least one lib type
4126 if ! enabled_any static shared; then
4128 At least one library type must be built.
4129 Specify --enable-static to build the static libraries or --enable-shared to
4130 build the shared libraries as well. To only build the shared libraries specify
4131 --disable-static in addition to --enable-shared.
4136 disabled optimizations || check_cflags -fomit-frame-pointer
4139 disabled pic && return
4142 case "$target_os" in
4152 enabled pic && enable_weak_pic
4154 check_cc <<EOF || die "Symbol mangling check failed."
4157 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4158 extern_prefix=${sym%%ff_extern*}
4160 check_cc <<EOF && enable_weak inline_asm
4161 void foo(void) { __asm__ volatile ("" ::); }
4165 for restrict_keyword in restrict __restrict__ __restrict; do
4166 check_cc <<EOF && _restrict=$restrict_keyword && break
4167 void foo(char * $restrict_keyword p);
4171 check_cc <<EOF && enable pragma_deprecated
4172 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4175 check_cc <<EOF && enable attribute_packed
4176 struct { int x; } __attribute__((packed)) x;
4179 check_cc <<EOF && enable attribute_may_alias
4180 union { int x; } __attribute__((may_alias)) x;
4183 check_cc <<EOF || die "endian test failed"
4184 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4186 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4189 log "check_gas using '$as' as AS"
4190 # :vararg is used on aarch64, arm and ppc altivec
4191 check_as <<EOF || return 1
4192 .macro m n, y:vararg=0
4197 # .altmacro is only used in arm asm
4198 ! enabled arm || check_as <<EOF || return 1
4205 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4207 enabled_any arm aarch64 && nogas=die
4208 enabled_all ppc altivec && nogas=warn
4212 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4213 gcc) gaspp_as_type=gas ;;
4214 *) gaspp_as_type=$as_type ;;
4217 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4219 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4220 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4222 if ! check_gas ; then
4225 $nogas "GNU assembler not found, install/update gas-preprocessor"
4228 check_as <<EOF && enable as_func
4234 check_inline_asm inline_asm_labels '"1:\n"'
4236 if enabled aarch64; then
4237 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4238 # internal assembler in clang 3.3 does not support this instruction
4239 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4240 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4242 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4244 elif enabled alpha; then
4248 elif enabled arm; then
4250 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4251 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4252 enabled thumb && check_cflags -mthumb || check_cflags -marm
4254 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4256 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4258 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4259 case "${cross_prefix:-$cc}" in
4260 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4261 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4262 __asm__ (".eabi_attribute 28, 1");
4263 int main(void) { return 0; }
4266 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4269 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4270 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4271 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4272 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4273 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4274 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4276 [ $target_os = linux ] || [ $target_os = android ] ||
4277 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4280 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4282 check_as <<EOF && enable as_dn_directive
4286 check_as <<EOF && enable as_fpu_directive
4290 # llvm's integrated assembler supports .object_arch from llvm 3.5
4291 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4295 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4297 elif enabled mips; then
4299 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4301 # make sure that only an instruction set is enabled
4302 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4304 if enabled mips64; then
4305 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4306 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4307 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4309 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4310 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4311 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4314 elif enabled parisc; then
4316 if enabled gcc; then
4317 case $($cc -dumpversion) in
4318 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4322 elif enabled ppc; then
4324 enable local_aligned_8 local_aligned_16 local_aligned_32
4326 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4327 check_inline_asm ibm_asm '"add 0, 0, 0"'
4328 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4329 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4331 # AltiVec flags: The FSF version of GCC differs from the Apple version
4332 if enabled altivec; then
4333 check_cflags -maltivec -mabi=altivec &&
4334 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4335 check_cflags -faltivec
4337 # check if our compiler supports Motorola AltiVec C API
4338 check_cc <<EOF || disable altivec
4341 vector signed int v1 = (vector signed int) { 0 };
4342 vector signed int v2 = (vector signed int) { 1 };
4343 v1 = vec_add(v1, v2);
4348 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4351 if enabled vsx; then
4352 check_cflags -mvsx &&
4353 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4356 if enabled power8; then
4357 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4360 elif enabled x86; then
4362 check_builtin rdtsc intrin.h "__rdtsc()"
4363 check_builtin mm_empty mmintrin.h "_mm_empty()"
4365 enable local_aligned_8 local_aligned_16 local_aligned_32
4367 # check whether EBP is available on x86
4368 # As 'i' is stored on the stack, this program will crash
4369 # if the base pointer is used to access it because the
4370 # base pointer is cleared in the inline assembly code.
4371 check_exec_crash <<EOF && enable ebp_available
4373 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4377 # check whether EBX is available on x86
4378 check_inline_asm ebx_available '""::"b"(0)' &&
4379 check_inline_asm ebx_available '"":::"%ebx"'
4381 # check whether xmm clobbers are supported
4382 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4384 # check whether binutils is new enough to compile SSSE3/MMXEXT
4385 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4386 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4388 if ! disabled_any asm mmx yasm; then
4389 if check_cmd $yasmexe --version; then
4390 enabled x86_64 && yasm_extra="-m amd64"
4391 yasm_debug="-g dwarf2"
4392 elif check_cmd nasm -v; then
4394 yasm_debug="-g -F dwarf"
4395 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4398 YASMFLAGS="-f $objformat $yasm_extra"
4399 enabled pic && append YASMFLAGS "-DPIC"
4400 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4401 case "$objformat" in
4402 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4405 check_yasm "movbe ecx, [5]" && enable yasm ||
4406 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4407 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4408 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4409 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4410 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4411 check_yasm "CPU amdnop" || disable cpunop
4415 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4422 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4424 check_ldflags -Wl,--as-needed
4426 if check_func dlopen; then
4428 elif check_func dlopen -ldl; then
4432 if ! disabled network; then
4433 check_func getaddrinfo $network_extralibs
4434 check_func inet_aton $network_extralibs
4436 check_type netdb.h "struct addrinfo"
4437 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4438 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4439 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4440 check_type poll.h "struct pollfd"
4441 check_type netinet/sctp.h "struct sctp_event_subscribe"
4442 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4443 check_type netinet/in.h "struct sockaddr_in6"
4444 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4445 check_type "sys/types.h sys/socket.h" socklen_t
4447 # Prefer arpa/inet.h over winsock2
4448 if check_header arpa/inet.h ; then
4449 check_func closesocket
4450 elif check_header winsock2.h ; then
4451 check_func_headers winsock2.h closesocket -lws2 &&
4452 network_extralibs="-lws2" ||
4453 { check_func_headers winsock2.h closesocket -lws2_32 &&
4454 network_extralibs="-lws2_32"; } || disable winsock2_h network
4455 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4457 check_type ws2tcpip.h socklen_t
4458 check_type ws2tcpip.h "struct addrinfo"
4459 check_type ws2tcpip.h "struct group_source_req"
4460 check_type ws2tcpip.h "struct ip_mreq_source"
4461 check_type ws2tcpip.h "struct ipv6_mreq"
4462 check_type winsock2.h "struct pollfd"
4463 check_struct winsock2.h "struct sockaddr" sa_len
4464 check_type ws2tcpip.h "struct sockaddr_in6"
4465 check_type ws2tcpip.h "struct sockaddr_storage"
4471 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4472 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4473 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4474 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4476 case "$custom_allocator" in
4478 # jemalloc by default does not use a prefix
4479 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4482 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4487 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4488 check_func ${malloc_prefix}memalign && enable memalign
4489 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4491 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4492 check_func_headers time.h clock_gettime ||
4493 { check_lib time.h clock_gettime -lrt && LIBRT="-lrt"; }
4497 check_func gethrtime
4499 check_func getrusage
4500 check_func gettimeofday
4503 check_func localtime_r
4504 check_func mach_absolute_time
4508 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4509 check_func_headers time.h nanosleep || check_lib time.h nanosleep -lrt
4510 check_func sched_getaffinity
4511 check_func setrlimit
4512 check_func strerror_r
4517 check_func_headers io.h setmode
4518 check_func_headers stdlib.h getenv
4520 check_func_headers windows.h CoTaskMemFree -lole32
4521 check_func_headers windows.h GetProcessAffinityMask
4522 check_func_headers windows.h GetProcessTimes
4523 check_func_headers windows.h GetSystemTimeAsFileTime
4524 check_func_headers windows.h LoadLibrary
4525 check_func_headers windows.h MapViewOfFile
4526 check_func_headers windows.h SetConsoleTextAttribute
4527 check_func_headers windows.h Sleep
4528 check_func_headers windows.h VirtualAlloc
4529 check_struct windows.h "CONDITION_VARIABLE" Ptr
4531 check_header direct.h
4532 check_header dlfcn.h
4533 check_header d3d11.h
4535 check_header dxva2api.h
4537 check_header mach/mach_time.h
4538 check_header malloc.h
4540 check_header sys/mman.h
4541 check_header sys/param.h
4542 check_header sys/resource.h
4543 check_header sys/select.h
4544 check_header sys/time.h
4545 check_header sys/un.h
4546 check_header unistd.h
4547 check_header valgrind/valgrind.h
4548 check_header VideoDecodeAcceleration/VDADecoder.h
4549 check_header windows.h
4550 check_header X11/extensions/XvMClib.h
4552 # it seems there are versions of clang in some distros that try to use the
4553 # gcc headers, which explodes for stdatomic
4554 # so we also check that atomics actually work here
4555 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4557 check_lib "windows.h shellapi.h" CommandLineToArgvW -lshell32
4558 check_lib "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4559 check_lib "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4561 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4563 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4564 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4565 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4567 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4568 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4569 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4570 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4571 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4573 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4575 if ! disabled w32threads && ! enabled pthreads; then
4576 check_func_headers "windows.h process.h" _beginthreadex &&
4577 enable w32threads || disable w32threads
4580 # check for some common methods of building with pthread support
4581 # do this before the optional library checks as some of them require pthreads
4582 if ! disabled pthreads && ! enabled w32threads; then
4584 if check_lib pthread.h pthread_join -pthread; then
4586 elif check_lib pthread.h pthread_join -pthreads; then
4587 add_cflags -pthreads
4588 elif check_lib pthread.h pthread_join -lpthreadGC2; then
4590 elif check_lib pthread.h pthread_join -lpthread; then
4592 elif ! check_func pthread_join; then
4598 check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
4600 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4601 disabled bzlib || check_lib bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4603 check_lib math.h sin -lm && LIBM="-lm"
4609 for func in $MATH_FUNCS; do
4610 eval check_mathfunc $func \${${func}_args:-1} $LIBM
4613 # these are off by default, so fail if requested and not available
4614 enabled avisynth && { check_header avisynth/avisynth_c.h || die "ERROR: avisynth/avisynth_c.h header not found"; }
4615 enabled avxsynth && require avxsynth "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl
4616 enabled cuda && require cuda cuda.h cuInit -lcuda
4617 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4618 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4619 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4620 enabled libdc1394 && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
4621 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4622 enabled libfaac && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4623 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4624 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4625 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4626 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4627 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4628 done || die "ERROR: libgsm not found"; }
4629 enabled libhdcd && require_pkg_config libhdcd "hdcd/hdcd_simple.h" hdcd_new
4630 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4631 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4632 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4633 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4634 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4635 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4636 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4637 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4638 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4639 enabled libopenjpeg && { check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4640 require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4641 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4642 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4643 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4644 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4645 enabled libsnappy && require libsnappy snappy-c.h snappy_compress -lsnappy
4646 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4647 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4648 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4649 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4650 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4651 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4652 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4653 enabled libvpx_vp8_decoder && {
4654 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4655 disable libvpx_vp8_decoder;
4657 enabled libvpx_vp8_encoder && {
4658 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4659 disable libvpx_vp8_encoder;
4661 enabled libvpx_vp9_decoder && {
4662 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4663 disable libvpx_vp9_decoder;
4665 enabled libvpx_vp9_encoder && {
4666 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4667 disable libvpx_vp9_encoder;
4669 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4670 die "libvpx enabled but no supported decoders found"
4673 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4674 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4675 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4676 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4677 die "ERROR: libx264 version must be >= 0.118."; } &&
4678 { check_cpp_condition x264.h "X264_MPEG2" &&
4680 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4681 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4682 die "ERROR: libx265 version must be >= 57."; }
4683 enabled libxavs && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4684 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4685 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4686 { ! enabled cross_compile &&
4687 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4688 add_ldflags -L/opt/vc/lib/ &&
4689 check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4690 die "ERROR: mmal not found" &&
4691 check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4692 enabled omx_rpi && { check_header OMX_Core.h ||
4693 { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
4694 die "ERROR: OpenMAX IL headers not found"; }
4695 enabled omx && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }
4696 enabled openssl && { { check_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||
4697 check_pkg_config openssl openssl/ssl.h SSL_library_init; } && {
4698 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4699 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4700 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4701 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4702 die "ERROR: openssl not found"; }
4704 enabled gnutls && check_lib gmp.h mpz_export -lgmp && enable gmp
4706 if enabled nvenc; then
4707 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."
4708 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6" ||
4709 die "ERROR: NVENC API version 5 or older is not supported"
4712 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4713 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4714 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4718 ! disabled pod2man && check_cmd pod2man --help && enable pod2man || disable pod2man
4719 ! disabled texi2html && check_cmd texi2html -version && enable texi2html || disable texi2html
4721 check_header linux/fb.h
4722 check_header linux/videodev2.h
4723 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4725 check_header AVFoundation/AVFoundation.h
4727 check_header sys/videoio.h
4729 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4730 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4731 # w32api 3.12 had it defined wrong
4732 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4734 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4735 { check_header dev/bktr/ioctl_meteor.h &&
4736 check_header dev/bktr/ioctl_bt848.h; } ||
4737 { check_header machine/ioctl_meteor.h &&
4738 check_header machine/ioctl_bt848.h; } ||
4739 { check_header dev/video/meteor/ioctl_meteor.h &&
4740 check_header dev/video/bktr/ioctl_bt848.h; } ||
4741 check_header dev/ic/bt8xx.h
4743 check_header sys/soundcard.h
4744 check_header soundcard.h
4746 enabled_any alsa_indev alsa_outdev &&
4747 check_lib alsa/asoundlib.h snd_pcm_htimestamp -lasound
4749 enabled jack_indev && check_lib jack/jack.h jack_client_open -ljack &&
4750 check_func jack_port_get_latency_range -ljack
4752 enabled_any sndio_indev sndio_outdev && check_lib sndio.h sio_open -lsndio
4754 if enabled libcdio; then
4755 check_lib "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4756 check_lib "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4757 die "ERROR: No usable libcdio/cdparanoia found"
4760 if enabled libxcb; then
4761 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4762 enabled libxcb && die "ERROR: libxcb not found";
4765 disabled libxcb_shm ||
4766 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4767 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4768 } && check_header sys/shm.h && enable libxcb_shm
4770 disabled libxcb_xfixes ||
4771 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4772 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4773 } && enable libxcb_xfixes
4775 add_cflags "$xcb_shape_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4776 add_extralibs "$xcb_shape_libs $xcb_shm_libs $xcb_xfixes_libs"
4779 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4782 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4786 check_lib "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm &&
4790 check_lib "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11 &&
4794 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4798 check_lib "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11 &&
4801 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4803 # add some useful compiler flags if supported
4804 check_cflags -Wdeclaration-after-statement
4806 check_cflags -Wdisabled-optimization
4807 check_cflags -Wpointer-arith
4808 check_cflags -Wredundant-decls
4809 check_cflags -Wwrite-strings
4810 check_cflags -Wtype-limits
4811 check_cflags -Wundef
4812 check_cflags -Wmissing-prototypes
4813 check_cflags -Wstrict-prototypes
4815 if enabled extra_warnings; then
4816 check_cflags -Wcast-qual
4817 check_cflags -Wextra
4818 check_cflags -Wpedantic
4821 check_disable_warning(){
4822 warning_flag=-W${1#-Wno-}
4823 test_cflags $warning_flag && add_cflags $1
4826 check_disable_warning -Wno-parentheses
4827 check_disable_warning -Wno-switch
4828 check_disable_warning -Wno-format-zero-length
4829 check_disable_warning -Wno-pointer-sign
4831 check_disable_warning_headers(){
4832 warning_flag=-W${1#-Wno-}
4833 test_cflags $warning_flag && add_cflags_headers $1
4836 check_disable_warning_headers -Wno-deprecated-declarations
4837 check_disable_warning_headers -Wno-unused-variable
4839 check_objcflags -fobjc-arc && enable objc_arc
4841 # add some linker flags
4842 check_ldflags -Wl,--warn-common
4843 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4844 enabled rpath && add_ldexeflags -Wl,-rpath,$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,*'
5050 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5052 check_deps $CONFIG_LIST \
5057 enabled_all dxva2 CoTaskMemFree &&
5058 prepend avconv_libs $($ldflags_filter "-lole32") &&
5061 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5063 for thread in $THREADS_LIST; do
5064 if enabled $thread; then
5065 test -n "$thread_type" &&
5066 die "ERROR: Only one thread type must be selected." ||
5067 thread_type="$thread"
5071 if disabled stdatomic_h; then
5072 if enabled atomics_gcc; then
5073 add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
5074 elif enabled atomics_win32; then
5075 add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
5076 elif enabled atomics_suncc; then
5077 add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
5078 elif enabled pthreads; then
5079 add_compat atomics/pthread/stdatomic.o
5080 add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
5082 enabled threads && die "Threading is enabled, but no atomics are available"
5083 add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
5087 enabled zlib && add_cppflags -DZLIB_CONST
5089 # conditional library dependencies, in linking order
5090 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5091 enabled_any asyncts_filter resample_filter &&
5092 prepend avfilter_deps "avresample"
5093 enabled scale_filter && prepend avfilter_deps "swscale"
5095 enabled opus_decoder && prepend avcodec_deps "avresample"
5099 eval "deps=\$$lib_deps"
5100 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5104 map 'expand_deps $v' $LIBRARY_LIST
5106 if test "$quiet" != "yes"; then
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 "$extra_version" != ""; then
5118 echo "version string suffix $extra_version"
5120 echo "big-endian ${bigendian-no}"
5121 echo "runtime cpu detection ${runtime_cpudetect-no}"
5122 if enabled x86; then
5123 echo "${yasmexe} ${yasm-no}"
5124 echo "MMX enabled ${mmx-no}"
5125 echo "MMXEXT enabled ${mmxext-no}"
5126 echo "3DNow! enabled ${amd3dnow-no}"
5127 echo "3DNow! extended enabled ${amd3dnowext-no}"
5128 echo "SSE enabled ${sse-no}"
5129 echo "SSSE3 enabled ${ssse3-no}"
5130 echo "AVX enabled ${avx-no}"
5131 echo "XOP enabled ${xop-no}"
5132 echo "FMA3 enabled ${fma3-no}"
5133 echo "FMA4 enabled ${fma4-no}"
5134 echo "i686 features enabled ${i686-no}"
5135 echo "CMOV is fast ${fast_cmov-no}"
5136 echo "EBX available ${ebx_available-no}"
5137 echo "EBP available ${ebp_available-no}"
5139 if enabled aarch64; then
5140 echo "NEON enabled ${neon-no}"
5141 echo "VFP enabled ${vfp-no}"
5143 if enabled arm; then
5144 echo "ARMv5TE enabled ${armv5te-no}"
5145 echo "ARMv6 enabled ${armv6-no}"
5146 echo "ARMv6T2 enabled ${armv6t2-no}"
5147 echo "VFP enabled ${vfp-no}"
5148 echo "NEON enabled ${neon-no}"
5150 if enabled ppc; then
5151 echo "AltiVec enabled ${altivec-no}"
5152 echo "VSX enabled ${vsx-no}"
5153 echo "POWER8 enabled ${power8-no}"
5154 echo "PPC 4xx optimizations ${ppc4xx-no}"
5155 echo "dcbzl available ${dcbzl-no}"
5157 echo "debug symbols ${debug-no}"
5158 echo "optimize for size ${small-no}"
5159 echo "optimizations ${optimizations-no}"
5160 echo "static ${static-no}"
5161 echo "shared ${shared-no}"
5162 echo "network support ${network-no}"
5163 echo "threading support ${thread_type-no}"
5164 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5165 test -n "$random_seed" &&
5166 echo "random seed ${random_seed}"
5169 echo "External libraries:"
5170 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5172 echo "External libraries providing hardware acceleration:"
5173 print_enabled '' $HWACCEL_LIBRARY_LIST | print_3_columns
5177 print_enabled '' $LIBRARY_LIST | print_3_columns
5181 print_enabled '' $PROGRAM_LIST | print_3_columns
5184 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5185 echo "Enabled ${type}s:"
5186 eval list=\$$(toupper $type)_LIST
5187 print_enabled '_*' $list | print_3_columns
5191 license="LGPL version 2.1 or later"
5192 if enabled nonfree; then
5193 license="nonfree and unredistributable"
5194 elif enabled gplv3; then
5195 license="GPL version 3 or later"
5196 elif enabled lgplv3; then
5197 license="LGPL version 3 or later"
5198 elif enabled gpl; then
5199 license="GPL version 2 or later"
5202 echo "License: $license"
5204 echo "Creating configuration files ..."
5206 fi # test "$quiet" != "yes"
5208 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5210 config_files="$TMPH config.mak"
5212 cat > config.mak <<EOF
5213 # Automatically generated by configure - do not modify!
5214 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5216 LIBDIR=\$(DESTDIR)$libdir
5217 SHLIBDIR=\$(DESTDIR)$shlibdir
5218 INCDIR=\$(DESTDIR)$incdir
5219 BINDIR=\$(DESTDIR)$bindir
5220 DATADIR=\$(DESTDIR)$datadir
5221 DOCDIR=\$(DESTDIR)$docdir
5222 MANDIR=\$(DESTDIR)$mandir
5223 SRC_PATH=$source_path
5226 INTRINSICS=$intrinsics
5233 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5235 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5246 OBJCFLAGS=$OBJCFLAGS
5261 LDEXEFLAGS=$LDEXEFLAGS
5262 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5263 STRIPFLAGS=$STRIPFLAGS
5264 YASMFLAGS=$YASMFLAGS
5271 EXTRA_VERSION=$extra_version
5273 CCDEP_FLAGS=$CCDEP_FLAGS
5275 ASDEP_FLAGS=$ASDEP_FLAGS
5276 CC_DEPFLAGS=$CC_DEPFLAGS
5277 AS_DEPFLAGS=$AS_DEPFLAGS
5280 HOSTCFLAGS=$host_cflags
5281 HOSTCPPFLAGS=$host_cppflags
5282 HOSTEXESUF=$HOSTEXESUF
5283 HOSTLDFLAGS=$host_ldflags
5284 HOSTEXTRALIBS=$host_extralibs
5286 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5287 HOSTCCDEP=$HOSTCCDEP
5288 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5289 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5293 TARGET_EXEC=$target_exec $target_exec_args
5294 TARGET_PATH=$target_path
5295 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5296 CFLAGS-avplay=$sdl_cflags
5297 CFLAGS_HEADERS=$CFLAGS_HEADERS
5298 ZLIB=$($ldflags_filter -lz)
5299 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5300 EXTRALIBS=$extralibs
5301 COMPAT_OBJS=$compat_objs
5303 LIBTARGET=${LIBTARGET}
5304 SLIBNAME=${SLIBNAME}
5305 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5306 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5307 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5308 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5309 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5310 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5311 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5312 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5313 VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
5314 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5319 name=$(toupper $lcname)
5320 file=$source_path/$lcname/version.h
5321 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5322 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5323 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5324 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5325 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5328 map 'get_version $v' $LIBRARY_LIST
5330 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5332 print_program_libs(){
5333 eval "program_libs=\$${1}_libs"
5334 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5337 map 'print_program_libs $v' $PROGRAM_LIST
5340 /* Automatically generated by configure - do not modify! */
5341 #ifndef LIBAV_CONFIG_H
5342 #define LIBAV_CONFIG_H
5343 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5344 #define LIBAV_LICENSE "$(c_escape $license)"
5345 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5346 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5347 #define restrict $_restrict
5348 #define EXTERN_PREFIX "${extern_prefix}"
5349 #define EXTERN_ASM ${extern_prefix}
5350 #define SLIBSUF "$SLIBSUF"
5353 test -n "$malloc_prefix" &&
5354 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5356 if enabled yasm; then
5357 append config_files $TMPASM
5361 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5363 print_config ARCH_ "$config_files" $ARCH_LIST
5364 print_config HAVE_ "$config_files" $HAVE_LIST
5365 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5369 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5371 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5372 cp_if_changed $TMPH config.h
5375 enabled yasm && cp_if_changed $TMPASM config.asm
5378 /* Generated by ffconf */
5379 #ifndef AVUTIL_AVCONFIG_H
5380 #define AVUTIL_AVCONFIG_H
5383 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5385 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5387 cp_if_changed $TMPH libavutil/avconfig.h
5389 # generate the lists of enabled components
5390 print_enabled_components(){
5395 echo "static const $struct_name *$name[] = {" > $TMPH
5397 enabled $c && printf " &ff_%s,\n" $c >> $TMPH
5399 echo " NULL };" >> $TMPH
5400 cp_if_changed $TMPH $file
5403 print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
5404 print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
5406 test -n "$WARNINGS" && printf "\n$WARNINGS"
5408 # build pkg-config files
5411 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5414 pkgconfig_generate(){
5416 shortname=${name#lib}
5420 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5421 requires=${requires%, }
5422 enabled ${name#lib} || return 0
5424 cat <<EOF > $name/$name.pc
5426 exec_prefix=\${prefix}
5431 Description: $comment
5433 Requires: $(enabled shared || echo $requires)
5434 Requires.private: $(enabled shared && echo $requires)
5436 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5437 Libs.private: $(enabled shared && echo $libs)
5438 Cflags: -I\${includedir}
5440 cat <<EOF > $name/$name-uninstalled.pc
5443 libdir=\${pcfiledir}
5444 includedir=${source_path}
5447 Description: $comment
5451 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5452 Cflags: -I\${includedir}
5456 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5457 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5458 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5459 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5460 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5461 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5462 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"