3 # Libav configure script
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
10 # Prevent locale nonsense from breaking basic text processing.
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
23 (: ${foo%%bar}) 2> /dev/null
26 (: ${foo?}) 2> /dev/null
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
32 if test "0$FF_CONF_EXEC" -lt 1; then
34 try_exec bash "$0" "$@"
36 if test "0$FF_CONF_EXEC" -lt 2; then
38 try_exec ksh "$0" "$@"
40 if test "0$FF_CONF_EXEC" -lt 3; then
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-cuda enable dynamically linked CUDA [no]
183 --enable-frei0r enable frei0r video filtering
184 --enable-gnutls enable gnutls [no]
185 --enable-libbs2b enable bs2b DSP library [no]
186 --enable-libcdio enable audio CD grabbing with libcdio
187 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
189 --enable-libdcadec enable DCA decoding via libdcadec [no]
190 --enable-libfaac enable AAC encoding via libfaac [no]
191 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
192 --enable-libfreetype enable libfreetype [no]
193 --enable-libgsm enable GSM de/encoding via libgsm [no]
194 --enable-libilbc enable iLBC de/encoding via libilbc [no]
195 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
196 --enable-libmfx enable HW acceleration through libmfx
197 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
198 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
199 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
200 --enable-libopencv enable video filtering via libopencv [no]
201 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
202 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
203 --enable-libopus enable Opus de/encoding via libopus [no]
204 --enable-libpulse enable Pulseaudio input via libpulse [no]
205 --enable-librtmp enable RTMP[E] support via librtmp [no]
206 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
207 --enable-libsnappy enable Snappy compression [no]
208 --enable-libspeex enable Speex de/encoding via libspeex [no]
209 --enable-libtheora enable Theora encoding via libtheora [no]
210 --enable-libtwolame enable MP2 encoding via libtwolame [no]
211 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
212 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
213 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
214 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
215 --enable-libwavpack enable wavpack encoding via libwavpack [no]
216 --enable-libwebp enable WebP encoding via libwebp [no]
217 --enable-libx264 enable H.264 encoding via x264 [no]
218 --enable-libx265 enable HEVC encoding via x265 [no]
219 --enable-libxavs enable AVS encoding via xavs [no]
220 --enable-libxcb enable X11 grabbing using XCB [no]
221 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
222 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
223 --enable-libxvid enable Xvid encoding via xvidcore,
224 native MPEG-4/Xvid encoder exists [no]
225 --enable-mmal enable decoding via MMAL [no]
226 --enable-nvenc enable encoding via NVENC [no]
227 --enable-openssl enable openssl [no]
228 --enable-x11grab enable X11 grabbing (legacy) [no]
229 --enable-zlib enable zlib [autodetect]
232 --arch=ARCH select architecture [$arch]
233 --cpu=CPU select the minimum required CPU (affects
234 instruction selection, may crash on older CPUs)
235 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
236 --enable-cross-compile assume a cross-compiler is used
237 --sysroot=PATH root of cross-build tree
238 --sysinclude=PATH location of cross-build system headers
239 --target-os=OS compiler targets OS [$target_os]
240 --target-exec=CMD command to run executables on target
241 --target-path=DIR path to view of build directory on target
242 --target-samples=DIR path to samples directory on target
243 --toolchain=NAME set tool defaults according to NAME
245 --ar=AR use archive tool AR [$ar_default]
246 --as=AS use assembler AS [$as_default]
247 --cc=CC use C compiler CC [$cc_default]
248 --objcc=OCC use ObjC compiler OCC [$cc_default]
249 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
250 --ld=LD use linker LD
251 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
252 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
253 --host-cc=HOSTCC use host C compiler HOSTCC
254 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
255 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
256 --host-ld=HOSTLD use host linker HOSTLD
257 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
258 --host-libs=HLIBS use libs HLIBS when linking for host
259 --host-os=OS compiler host OS [$target_os]
260 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
261 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
262 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
263 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
264 --extra-libs=ELIBS add ELIBS [$ELIBS]
265 --extra-version=STRING version string suffix []
266 --optflags=OPTFLAGS override optimization-related compiler flags
267 --build-suffix=SUFFIX library name suffix []
268 --enable-pic build position-independent code
269 --enable-thumb compile for Thumb instruction set
270 --enable-lto use link-time optimization
271 --env="ENV=override" override the environment variables
273 Advanced options (experts only):
274 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
275 --custom-allocator=NAME use a supported custom allocator
276 --disable-symver disable symbol versioning
277 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
278 --disable-safe-bitstream-reader
279 disable buffer boundary checking in bitreaders
280 (faster, but may crash)
281 --enable-memalign-hack emulate memalign, interferes with memory debuggers
282 --enable-sram allow use of on-chip SRAM
284 Optimization options (experts only):
285 --disable-asm disable all assembly optimizations
286 --disable-altivec disable AltiVec optimizations
287 --disable-vsx disable VSX optimizations
288 --disable-power8 disable POWER8 optimizations
289 --disable-amd3dnow disable 3DNow! optimizations
290 --disable-amd3dnowext disable 3DNow! extended optimizations
291 --disable-mmx disable MMX optimizations
292 --disable-mmxext disable MMXEXT optimizations
293 --disable-sse disable SSE optimizations
294 --disable-sse2 disable SSE2 optimizations
295 --disable-sse3 disable SSE3 optimizations
296 --disable-ssse3 disable SSSE3 optimizations
297 --disable-sse4 disable SSE4 optimizations
298 --disable-sse42 disable SSE4.2 optimizations
299 --disable-avx disable AVX optimizations
300 --disable-xop disable XOP optimizations
301 --disable-fma3 disable FMA3 optimizations
302 --disable-fma4 disable FMA4 optimizations
303 --disable-avx2 disable AVX2 optimizations
304 --disable-armv5te disable armv5te optimizations
305 --disable-armv6 disable armv6 optimizations
306 --disable-armv6t2 disable armv6t2 optimizations
307 --disable-vfp disable VFP optimizations
308 --disable-neon disable NEON optimizations
309 --disable-inline-asm disable use of inline assembly
310 --disable-yasm disable use of nasm/yasm assembly
312 Developer options (useful when working on Libav itself):
313 --disable-debug disable debugging symbols
314 --enable-debug=LEVEL set the debug level [$debuglevel]
315 --disable-optimizations disable compiler optimizations
316 --enable-extra-warnings enable more compiler warnings
317 --samples=PATH location of test samples for FATE, if not set use
318 \$LIBAV_SAMPLES at make invocation time.
319 --enable-neon-clobber-test check NEON registers for clobbering (should be
320 used only for debugging purposes)
321 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
322 should be used only for debugging purposes)
323 --enable-random randomly enable/disable components
325 --enable-random=LIST randomly enable/disable specific components or
326 --disable-random=LIST component groups. LIST is a comma-separated list
327 of NAME[:PROB] entries where NAME is a component
328 (group) and PROB the probability associated with
330 --random-seed=VALUE seed value for --enable/disable-random
331 --disable-valgrind-backtrace do not print a backtrace under Valgrind
332 (only applies to --disable-optimizations builds)
334 NOTE: Object files are built at the place where configure is launched.
342 echo "$@" >> $logfile
349 printf '%5s %s\n' "${i}" "${line}"
351 done < $1 >> $logfile
362 WARNINGS="${WARNINGS}WARNING: $*\n"
369 If you think configure made a mistake, make sure you are using the latest
370 version from Git. If the latest version fails, report the problem to the
371 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
373 if disabled logging; then
375 Rerun configure with logging enabled (do not use --disable-logging), and
376 include the log this produces with your report.
380 Include the log file "$logfile" produced by configure as this will help
387 # Avoid locale weirdness, besides we really just want to translate ASCII.
389 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
393 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
397 echo "$*" | sed 's/["\\]/\\\0/g'
401 v=$(echo "$1" | sed "s/'/'\\\\''/g")
402 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
407 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
414 eval "case $v in $pat) echo $v ;; esac"
422 eval "case $v in $pat) ;; *) echo $v ;; esac"
429 for v; do eval $m; done
435 for v; do echo ${v}${suffix}; done
450 eval : \${$var:=$value}
455 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
461 eval $(sanitize_var_name "$var")='$*'
465 eval echo \$$(sanitize_var_name "$1")
470 eval level=\${${pvar}_level:=0}
471 eval ${pvar}_${level}="\$$pvar"
472 eval ${pvar}_level=$(($level+1))
478 eval level=\${${pvar}_level:-0}
479 test $level = 0 && continue
480 eval level=$(($level-1))
481 eval $pvar="\${${pvar}_${level}}"
482 eval ${pvar}_level=$level
483 eval unset ${pvar}_${level}
493 eval test "x\$${var#!}_requested" = "xyes" && die "${var%%_*} cannot be enabled"
512 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
518 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
524 enabled $var && continue
525 eval sel="\$${var}_select"
526 eval sgs="\$${var}_suggest"
530 enable_deep_weak $sgs
542 disabled $var && continue
550 do_enable_deep_force(){
552 enabled $var && continue
553 eval sel="\$${var}_deps\ \$${var}_deps_any\ \$${var}_select\ \$${var}_suggest\ \$${var}_select_any"
555 enable_deep_force $sel
561 do_enable_deep_force $*
563 is_in $var $ALL_COMPONENTS $COMPONENT_LIST $LIBRARY_LIST && enable $var
568 disable $* # force the refresh of the dependencies
570 enable ${var}_requested
577 test "${1#!}" = "$1" && op== || op=!=
578 eval test "x\$${1#!}" $op "xyes"
582 test "${1#!}" = "$1" && op== || op=!=
583 eval test "x\$${1#!}" $op "xno"
588 enabled $opt || return 1
594 disabled $opt || return 1
600 enabled $opt && return 0
606 disabled $opt && return 0
613 eval : \${$opt:=\$${opt}_default}
621 [ $var = $value ] && return 0
629 enabled ${cfg}_checking && die "Circular dependency for $cfg."
630 disabled ${cfg}_checking && continue
631 enable ${cfg}_checking
634 eval dep_all="\$${cfg}_deps"
635 eval dep_any="\$${cfg}_deps_any\ \$${cfg}_select_any"
636 eval dep_sel="\$${cfg}_select"
637 eval dep_sgs="\$${cfg}_suggest"
638 eval dep_ifa="\$${cfg}_if"
639 eval dep_ifn="\$${cfg}_if_any"
641 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
642 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
643 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
645 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
646 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
647 enabled_all $dep_all || disable $cfg
648 enabled_any $dep_any || disable $cfg
649 disabled_any $dep_sel && disable $cfg
651 if enabled $cfg; then
653 enable_deep_weak $dep_sgs
656 disable ${cfg}_checking
665 for cfg in $allopts; do
666 enabled $cfg || continue
667 eval dep_extralibs="\$${cfg}_extralibs"
668 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
676 map 'eval echo "$v \${$v:-no}"' "$@" |
677 awk "BEGIN { split(\"$files\", files) }
679 c = \"$pfx\" toupper(\$1);
685 if (file ~ /\\.h\$/) {
686 printf(\"#define %s %d\\n\", c, v) >>file;
687 } else if (file ~ /\\.asm\$/) {
688 printf(\"%%define %s %d\\n\", c, v) >>file;
689 } else if (file ~ /\\.mak\$/) {
690 n = -v ? \"\" : \"!\";
691 printf(\"%s%s=yes\\n\", n, c) >>file;
701 enabled $v && printf "%s\n" ${v%$suf};
708 eval "$var=\"\$$var $*\""
714 eval "$var=\"$* \$$var\""
720 for tok in $(eval echo \$$var); do
721 uniq_list="$(filter_out $tok $uniq_list) $tok"
723 eval "$var=\"${uniq_list}\""
731 append CFLAGS $($cflags_filter "$@")
735 append ASFLAGS $($asflags_filter "$@")
739 append OBJCFLAGS $($objcflags_filter "$@")
743 append LDFLAGS $($ldflags_filter "$@")
747 append LDEXEFLAGS $($ldflags_filter "$@")
751 append STRIPFLAGS "$@"
755 prepend extralibs $($ldflags_filter "$@")
759 append host_cppflags "$@"
763 append host_cflags $($host_cflags_filter "$@")
767 append host_ldflags $($host_ldflags_filter "$@")
771 append compat_objs $1
773 map 'add_cppflags -D$v' "$@"
778 "$@" >> $logfile 2>&1
782 eval printf '%s\\n' $CC_O
786 eval printf '%s\\n' $CC_E
793 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
800 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
807 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
811 eval printf '%s\\n' $AS_O
818 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
822 log check_inline_asm "$@"
827 check_cc "$@" <<EOF && enable $name
828 void foo(void){ __asm__ volatile($code); }
834 check_inline_asm ${1}_inline "\"$2\""
835 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
843 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
847 eval printf '%s\\n' $LD_O
852 flags=$(filter_out '-l*' "$@")
853 libs=$(filter '-l*' "$@")
854 check_cc $($cflags_filter $flags) || return
855 flags=$($ldflags_filter $flags)
856 libs=$($ldflags_filter $libs)
857 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
862 test "${hdr%.h}" = "${hdr}" &&
863 echo "#include $hdr" ||
864 echo "#include <$hdr>"
874 for hdr in $headers; do
877 echo "int main(void) { $code; return 0; }"
878 } | check_$check "$@"
882 log check_cppflags "$@"
883 check_cc "$@" <<EOF && append CPPFLAGS "$@"
890 set -- $($cflags_filter "$@")
897 log check_cflags "$@"
898 test_cflags "$@" && add_cflags "$@"
903 set -- $($cflags_filter "$@")
904 check_objcc "$@" <<EOF
910 log check_cflags "$@"
911 test_objcflags "$@" && add_objcflags "$@"
915 log test_ldflags "$@"
917 int main(void){ return 0; }
922 log check_ldflags "$@"
923 test_ldflags "$@" && add_ldflags "$@"
927 log test_stripflags "$@"
928 # call check_cc to get a fresh TMPO
930 int main(void) { return 0; }
932 check_cmd $strip $STRIPFLAGS "$@" $TMPO
936 log check_stripflags "$@"
937 test_stripflags "$@" && add_stripflags "$@"
941 log check_header "$@"
945 check_cpp "$@" <<EOF && enable_safe $header
956 check_ld "$@" <<EOF && enable $func
958 int main(void){ $func(); }
963 log check_mathfunc "$@"
967 test $narg = 2 && args="f, g" || args="f"
969 check_ld "$@" <<EOF && enable $func
971 float foo(float f, float g) { return $func($args); }
972 int main(void){ return 0; }
976 check_func_headers(){
977 log check_func_headers "$@"
982 for hdr in $headers; do
985 for func in $funcs; do
986 echo "long check_$func(void) { return (long) $func; }"
988 echo "int main(void) { return 0; }"
989 } | check_ld "$@" && enable $funcs && enable_safe $headers
992 check_cpp_condition(){
993 log check_cpp_condition "$@"
1000 #error "unsatisfied condition: $condition"
1010 check_header $header && check_func $func "$@" && add_extralibs "$@"
1018 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1022 log check_pkg_config "$@"
1027 check_cmd $pkg_config --exists --print-errors $pkg || return
1028 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1029 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1030 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1031 set_safe "${pkg}_cflags" $pkg_cflags &&
1032 set_safe "${pkg}_libs" $pkg_libs
1036 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1042 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1043 # are safe but may not be available everywhere. Thus we use
1044 # raise(SIGTERM) instead. The check is run in a subshell so we
1045 # can redirect the "Terminated" message from the shell. SIGBUS
1046 # is not defined by standard C so it is used conditionally.
1048 (check_exec "$@") >> $logfile 2>&1 <<EOF
1050 static void sighandler(int sig){
1056 int (*func_ptr)(void) = foo;
1058 signal(SIGILL, sighandler);
1059 signal(SIGFPE, sighandler);
1060 signal(SIGSEGV, sighandler);
1062 signal(SIGBUS, sighandler);
1074 disable_safe "$type"
1075 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1079 log check_struct "$@"
1084 disable_safe "${struct}_${member}"
1085 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1086 enable_safe "${struct}_${member}"
1090 log check_builtin "$@"
1096 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1099 check_compile_assert(){
1100 log check_compile_assert "$@"
1106 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1114 check_lib $header $func "$@" || die "ERROR: $name not found"
1122 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1125 require_pkg_config(){
1127 check_pkg_config "$@" || die "ERROR: $pkg not found"
1128 add_cflags $(get_safe "${pkg}_cflags")
1129 add_extralibs $(get_safe "${pkg}_libs")
1133 eval printf '%s\\n' $HOSTCC_E
1137 eval printf '%s\\n' $HOSTCC_O
1141 log check_host_cc "$@"
1144 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1148 log check_host_cpp "$@"
1151 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1154 check_host_cppflags(){
1155 log check_host_cppflags "$@"
1156 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1161 check_host_cflags(){
1162 log check_host_cflags "$@"
1163 set -- $($host_cflags_filter "$@")
1164 check_host_cc "$@" <<EOF && append host_cflags "$@"
1169 check_host_cpp_condition(){
1170 log check_host_cpp_condition "$@"
1174 check_host_cpp "$@" <<EOF
1177 #error "unsatisfied condition: $condition"
1185 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1189 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1190 mkdir -p "$(dirname $2)"
1194 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1195 # system-dependent things.
1197 AVCODEC_COMPONENTS="
1205 AVDEVICE_COMPONENTS="
1209 AVFILTER_COMPONENTS="
1212 AVFORMAT_COMPONENTS="
1218 AVRESAMPLE_COMPONENTS=""
1219 AVUTIL_COMPONENTS=""
1223 $AVDEVICE_COMPONENTS
1224 $AVFILTER_COMPONENTS
1225 $AVFORMAT_COMPONENTS
1226 $AVRESAMPLE_COMPONENTS
1232 filter_audio_example
1236 transcode_aac_example
1239 EXTERNAL_LIBRARY_LIST="
1295 safe_bitstream_reader
1349 $EXTERNAL_LIBRARY_LIST
1414 ARCH_EXT_LIST_X86_SIMD="
1442 $ARCH_EXT_LIST_X86_SIMD
1447 ARCH_EXT_LIST_MIPS="
1481 sync_val_compare_and_swap
1495 AVFoundation_AVFoundation_h
1500 cdio_paranoia_paranoia_h
1501 dev_bktr_ioctl_bt848_h
1502 dev_bktr_ioctl_meteor_h
1504 dev_video_bktr_ioctl_bt848_h
1505 dev_video_meteor_ioctl_meteor_h
1513 machine_ioctl_bt848_h
1514 machine_ioctl_meteor_h
1578 GetProcessAffinityMask
1579 GetProcessMemoryInfo
1582 GetSystemTimeAsFileTime
1587 jack_port_get_latency_range
1599 SetConsoleTextAttribute
1610 TOOLCHAIN_FEATURES="
1631 CONDITION_VARIABLE_Ptr
1634 struct_group_source_req
1635 struct_ip_mreq_source
1638 struct_rusage_ru_maxrss
1640 struct_sockaddr_sa_len
1641 struct_sockaddr_storage
1642 struct_v4l2_frmivalenum_discrete
1647 $(add_suffix _external $ARCH_EXT_LIST)
1648 $(add_suffix _inline $ARCH_EXT_LIST)
1675 # options emitted with CONFIG_ prefix but not available on the command line
1818 # code dependency declarations
1820 # architecture extensions
1825 armv8_deps="aarch64"
1826 neon_deps_any="aarch64 arm"
1827 intrinsics_neon_deps="neon"
1828 vfp_deps_any="aarch64 arm"
1831 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1839 x86_64_select="i686"
1840 x86_64_suggest="fast_cmov"
1843 amd3dnowext_deps="amd3dnow"
1859 mmx_external_deps="yasm"
1860 mmx_inline_deps="inline_asm"
1861 mmx_suggest="mmx_external mmx_inline"
1863 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1864 eval dep=\$${ext}_deps
1865 eval ${ext}_external_deps='"${dep}_external"'
1866 eval ${ext}_inline_deps='"${dep}_inline"'
1867 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1870 aligned_stack_if_any="aarch64 ppc x86"
1871 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1872 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1873 fast_unaligned_if_any="aarch64 ppc x86"
1874 simd_align_16_if_any="altivec neon sse"
1876 # system capabilities
1877 symver_if_any="symver_asm_label symver_gnu_asm"
1878 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1881 atomics_gcc_if="sync_val_compare_and_swap"
1882 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1883 atomics_win32_if="MemoryBarrier"
1884 atomics_native_if_any="$ATOMICS_LIST"
1885 w32threads_deps="atomics_native"
1886 threads_if_any="$THREADS_LIST"
1890 dirac_parse_select="golomb"
1891 error_resilience_select="me_cmp"
1892 faandct_deps="faan fdctdsp"
1893 faanidct_deps="faan idctdsp"
1894 intrax8_select="error_resilience"
1897 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1898 mpeg_er_select="error_resilience"
1899 mpegaudio_select="mpegaudiodsp"
1900 mpegaudiodsp_select="dct"
1901 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1902 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1903 nvenc_deps_any="dlopen LoadLibrary"
1904 nvenc_extralibs='$ldl'
1908 # decoders / encoders
1909 aac_decoder_select="imdct15 mdct sinewin"
1910 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1911 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1912 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1913 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1914 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1915 adpcm_g722_decoder_select="g722dsp"
1916 adpcm_g722_encoder_select="g722dsp"
1917 aic_decoder_select="golomb idctdsp"
1918 alac_encoder_select="lpc"
1919 als_decoder_select="bswapdsp"
1920 amrnb_decoder_select="lsp"
1921 amrwb_decoder_select="lsp"
1922 amv_decoder_select="sp5x_decoder"
1923 ape_decoder_select="bswapdsp"
1924 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1925 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1926 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1927 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1928 atrac1_decoder_select="mdct sinewin"
1929 atrac3_decoder_select="mdct"
1930 atrac3p_decoder_select="mdct sinewin"
1931 bink_decoder_select="blockdsp hpeldsp"
1932 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1933 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1934 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1935 cllc_decoder_select="bswapdsp"
1936 comfortnoise_encoder_select="lpc"
1937 cook_decoder_select="audiodsp mdct sinewin"
1938 cscd_decoder_select="lzo"
1939 cscd_decoder_suggest="zlib"
1940 dca_decoder_select="fmtconvert mdct"
1941 dds_decoder_select="texturedsp"
1942 dnxhd_decoder_select="blockdsp idctdsp"
1943 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1944 dvvideo_decoder_select="dvprofile idctdsp"
1945 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1946 dxa_decoder_deps="zlib"
1947 dxv_decoder_select="lzf texturedsp"
1948 eac3_decoder_select="ac3_decoder"
1949 eac3_encoder_select="ac3_encoder"
1950 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1951 eatgq_decoder_select="aandcttables idctdsp"
1952 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1953 exr_decoder_deps="zlib"
1954 ffv1_decoder_select="golomb rangecoder"
1955 ffv1_encoder_select="rangecoder"
1956 ffvhuff_decoder_select="huffyuv_decoder"
1957 ffvhuff_encoder_select="huffyuv_encoder"
1958 fic_decoder_select="golomb"
1959 flac_decoder_select="flacdsp golomb"
1960 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1961 flashsv_decoder_deps="zlib"
1962 flashsv_encoder_deps="zlib"
1963 flashsv2_decoder_deps="zlib"
1964 flv_decoder_select="h263_decoder"
1965 flv_encoder_select="h263_encoder"
1966 fourxm_decoder_select="blockdsp bswapdsp"
1967 fraps_decoder_select="bswapdsp huffman"
1968 g2m_decoder_deps="zlib"
1969 g2m_decoder_select="blockdsp idctdsp jpegtables"
1970 h261_decoder_select="mpeg_er mpegvideo"
1971 h261_encoder_select="aandcttables mpegvideoenc"
1972 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1973 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1974 h263i_decoder_select="h263_decoder"
1975 h263p_encoder_select="h263_encoder"
1976 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1977 h264_decoder_suggest="error_resilience"
1978 h264_nvenc_encoder_deps="nvenc"
1979 h264_qsv_decoder_deps="libmfx"
1980 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1981 h264_qsv_encoder_deps="libmfx"
1982 h264_qsv_encoder_select="qsvenc"
1983 hap_decoder_select="snappy texturedsp"
1984 hap_encoder_deps="libsnappy"
1985 hap_encoder_select="texturedspenc"
1986 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1987 hevc_nvenc_encoder_deps="nvenc"
1988 hevc_qsv_encoder_deps="libmfx"
1989 hevc_qsv_decoder_deps="libmfx"
1990 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1991 hevc_qsv_encoder_select="qsvenc"
1992 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1993 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1994 iac_decoder_select="imc_decoder"
1995 imc_decoder_select="bswapdsp fft mdct sinewin"
1996 indeo3_decoder_select="hpeldsp"
1997 indeo4_decoder_select="ividsp"
1998 indeo5_decoder_select="ividsp"
1999 interplay_video_decoder_select="hpeldsp"
2000 jpegls_decoder_select="golomb mjpeg_decoder"
2001 jpegls_encoder_select="golomb"
2002 jv_decoder_select="blockdsp"
2003 lagarith_decoder_select="huffyuvdsp"
2004 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2005 loco_decoder_select="golomb"
2006 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2007 metasound_decoder_select="lsp mdct sinewin"
2008 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2009 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2010 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2011 mjpegb_decoder_select="mjpeg_decoder"
2012 mlp_decoder_select="mlp_parser"
2013 motionpixels_decoder_select="bswapdsp"
2014 mp1_decoder_select="mpegaudio"
2015 mp1float_decoder_select="mpegaudio"
2016 mp2_decoder_select="mpegaudio"
2017 mp2float_decoder_select="mpegaudio"
2018 mp3_decoder_select="mpegaudio"
2019 mp3adu_decoder_select="mpegaudio"
2020 mp3adufloat_decoder_select="mpegaudio"
2021 mp3float_decoder_select="mpegaudio"
2022 mp3on4_decoder_select="mpegaudio"
2023 mp3on4float_decoder_select="mpegaudio"
2024 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2025 mpc8_decoder_select="mpegaudiodsp"
2026 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2027 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2028 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2029 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2030 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2031 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2032 mpeg2_qsv_decoder_deps="libmfx"
2033 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2034 mpeg2_qsv_encoder_deps="libmfx"
2035 mpeg2_qsv_encoder_select="qsvenc"
2036 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2037 mpeg4_encoder_select="h263_encoder"
2038 msa1_decoder_select="mss34dsp"
2039 msmpeg4v1_decoder_select="h263_decoder"
2040 msmpeg4v2_decoder_select="h263_decoder"
2041 msmpeg4v2_encoder_select="h263_encoder"
2042 msmpeg4v3_decoder_select="h263_decoder"
2043 msmpeg4v3_encoder_select="h263_encoder"
2044 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2045 mts2_decoder_select="mss34dsp"
2046 mxpeg_decoder_select="mjpeg_decoder"
2047 nellymoser_decoder_select="mdct sinewin"
2048 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2049 nuv_decoder_select="idctdsp lzo"
2050 nvenc_h264_encoder_deps="nvenc"
2051 nvenc_hevc_encoder_deps="nvenc"
2052 on2avc_decoder_select="mdct"
2053 opus_decoder_deps="avresample"
2054 opus_decoder_select="imdct15"
2055 png_decoder_deps="zlib"
2056 png_encoder_deps="zlib"
2057 png_encoder_select="huffyuvencdsp"
2058 prores_decoder_select="idctdsp"
2059 prores_encoder_select="fdctdsp"
2060 qcelp_decoder_select="lsp"
2061 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2062 ra_144_encoder_select="audio_frame_queue lpc"
2063 ralf_decoder_select="golomb"
2064 rscc_decoder_deps="zlib"
2065 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2066 rv10_encoder_select="h263_encoder"
2067 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2068 rv20_encoder_select="h263_encoder"
2069 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2070 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2071 screenpresso_decoder_deps="zlib"
2072 shorten_decoder_select="golomb"
2073 sipr_decoder_select="lsp"
2074 sp5x_decoder_select="mjpeg_decoder"
2075 svq1_decoder_select="hpeldsp"
2076 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2077 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2078 svq3_decoder_suggest="zlib"
2079 tak_decoder_select="audiodsp"
2080 tdsc_decoder_deps="zlib"
2081 tdsc_decoder_select="mjpeg_decoder"
2082 theora_decoder_select="vp3_decoder"
2083 thp_decoder_select="mjpeg_decoder"
2084 tiff_decoder_suggest="zlib"
2085 tiff_encoder_suggest="zlib"
2086 truehd_decoder_select="mlp_decoder"
2087 truemotion2_decoder_select="bswapdsp"
2088 truespeech_decoder_select="bswapdsp"
2089 tscc_decoder_deps="zlib"
2090 txd_decoder_select="texturedsp"
2091 twinvq_decoder_select="mdct lsp sinewin"
2092 utvideo_decoder_select="bswapdsp"
2093 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2094 vble_decoder_select="huffyuvdsp"
2095 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2096 vc1image_decoder_select="vc1_decoder"
2097 vorbis_decoder_select="mdct"
2098 vorbis_encoder_select="mdct"
2099 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2100 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2101 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2102 vp6a_decoder_select="vp6_decoder"
2103 vp6f_decoder_select="vp6_decoder"
2104 vp7_decoder_select="h264pred videodsp vp8dsp"
2105 vp8_decoder_select="h264pred videodsp vp8dsp"
2106 vp9_decoder_select="videodsp"
2107 webp_decoder_select="vp8_decoder"
2108 wmapro_decoder_select="mdct sinewin wma_freqs"
2109 wmav1_decoder_select="mdct sinewin wma_freqs"
2110 wmav1_encoder_select="mdct sinewin wma_freqs"
2111 wmav2_decoder_select="mdct sinewin wma_freqs"
2112 wmav2_encoder_select="mdct sinewin wma_freqs"
2113 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2114 wmv1_decoder_select="h263_decoder"
2115 wmv1_encoder_select="h263_encoder"
2116 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2117 wmv2_encoder_select="h263_encoder wmv2dsp"
2118 wmv3_decoder_select="vc1_decoder"
2119 wmv3image_decoder_select="wmv3_decoder"
2120 zerocodec_decoder_deps="zlib"
2121 zlib_decoder_deps="zlib"
2122 zlib_encoder_deps="zlib"
2123 zmbv_decoder_deps="zlib"
2124 zmbv_encoder_deps="zlib"
2126 # hardware accelerators
2127 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2128 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2129 vaapi_deps="va_va_h"
2130 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2131 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2132 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
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_decoder_deps="mmal"
2141 h264_mmal_hwaccel_deps="mmal"
2142 h264_mmal_decoder_select="h264_decoder"
2143 h264_mmal_encoder_deps="mmal"
2144 h264_qsv_hwaccel_deps="libmfx"
2145 h264_vaapi_hwaccel_deps="vaapi"
2146 h264_vaapi_hwaccel_select="h264_decoder"
2147 h264_vda_hwaccel_deps="vda"
2148 h264_vda_hwaccel_select="h264_decoder"
2149 h264_vda_old_hwaccel_deps="vda"
2150 h264_vda_old_hwaccel_select="h264_decoder"
2151 h264_vdpau_hwaccel_deps="vdpau"
2152 h264_vdpau_hwaccel_select="h264_decoder"
2153 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2154 hevc_d3d11va_hwaccel_select="hevc_decoder"
2155 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2156 hevc_dxva2_hwaccel_select="hevc_decoder"
2157 hevc_qsv_hwaccel_deps="libmfx"
2158 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2159 hevc_vdpau_hwaccep_select="hevc_decoder"
2160 mpeg1_vdpau_hwaccel_deps="vdpau"
2161 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2162 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2163 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2164 mpeg2_dxva2_hwaccel_deps="dxva2"
2165 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2166 mpeg2_qsv_hwaccel_deps="libmfx"
2167 mpeg2_vaapi_hwaccel_deps="vaapi"
2168 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2169 mpeg2_vdpau_hwaccel_deps="vdpau"
2170 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2171 mpeg4_vaapi_hwaccel_deps="vaapi"
2172 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2173 mpeg4_vdpau_hwaccel_deps="vdpau"
2174 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2175 vc1_d3d11va_hwaccel_deps="d3d11va"
2176 vc1_d3d11va_hwaccel_select="vc1_decoder"
2177 vc1_dxva2_hwaccel_deps="dxva2"
2178 vc1_dxva2_hwaccel_select="vc1_decoder"
2179 vc1_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 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2184 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2185 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2186 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2189 h264_parser_select="h264_decoder"
2190 hevc_parser_select="golomb"
2191 mpegvideo_parser_select="mpegvideo"
2192 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2193 vc1_parser_select="mpegvideo startcode vc1_decoder"
2196 mjpeg2jpeg_bsf_select="jpegtables"
2198 # external libraries
2199 libdcadec_decoder_deps="libdcadec"
2200 libfaac_encoder_deps="libfaac"
2201 libfaac_encoder_select="audio_frame_queue"
2202 libfdk_aac_decoder_deps="libfdk_aac"
2203 libfdk_aac_encoder_deps="libfdk_aac"
2204 libfdk_aac_encoder_select="audio_frame_queue"
2205 libgsm_decoder_deps="libgsm"
2206 libgsm_encoder_deps="libgsm"
2207 libgsm_ms_decoder_deps="libgsm"
2208 libgsm_ms_encoder_deps="libgsm"
2209 libilbc_decoder_deps="libilbc"
2210 libilbc_encoder_deps="libilbc"
2211 libkvazaar_encoder_deps="libkvazaar"
2212 libmp3lame_encoder_deps="libmp3lame"
2213 libmp3lame_encoder_select="audio_frame_queue"
2214 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2215 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2216 libopencore_amrnb_encoder_select="audio_frame_queue"
2217 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2218 libopenh264_encoder_deps="libopenh264"
2219 libopenjpeg_decoder_deps="libopenjpeg"
2220 libopenjpeg_encoder_deps="libopenjpeg"
2221 libopus_decoder_deps="libopus"
2222 libopus_encoder_deps="libopus"
2223 libopus_encoder_select="audio_frame_queue"
2224 libschroedinger_decoder_deps="libschroedinger"
2225 libschroedinger_encoder_deps="libschroedinger"
2226 libspeex_decoder_deps="libspeex"
2227 libspeex_encoder_deps="libspeex"
2228 libspeex_encoder_select="audio_frame_queue"
2229 libtheora_encoder_deps="libtheora"
2230 libtwolame_encoder_deps="libtwolame"
2231 libvo_aacenc_encoder_deps="libvo_aacenc"
2232 libvo_aacenc_encoder_select="audio_frame_queue"
2233 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2234 libvorbis_encoder_deps="libvorbis"
2235 libvorbis_encoder_select="audio_frame_queue"
2236 libvpx_vp8_decoder_deps="libvpx"
2237 libvpx_vp8_encoder_deps="libvpx"
2238 libvpx_vp9_decoder_deps="libvpx"
2239 libvpx_vp9_encoder_deps="libvpx"
2240 libwavpack_encoder_deps="libwavpack"
2241 libwebp_encoder_deps="libwebp"
2242 libx262_encoder_deps="libx262"
2243 libx264_encoder_deps="libx264"
2244 libx265_encoder_deps="libx265"
2245 libxavs_encoder_deps="libxavs"
2246 libxvid_encoder_deps="libxvid"
2249 ac3_demuxer_select="ac3_parser"
2250 asf_demuxer_select="riffdec"
2251 asf_muxer_select="riffenc"
2252 asf_stream_muxer_select="asf_muxer"
2253 avi_demuxer_select="iso_media riffdec"
2254 avi_muxer_select="riffenc"
2255 avisynth_demuxer_deps="avisynth"
2256 avisynth_demuxer_select="riffdec"
2257 caf_demuxer_select="iso_media riffdec"
2258 dash_muxer_select="mp4_muxer"
2259 dirac_demuxer_select="dirac_parser"
2260 dv_demuxer_select="dvprofile"
2261 dv_muxer_select="dvprofile"
2262 dxa_demuxer_select="riffdec"
2263 eac3_demuxer_select="ac3_parser"
2264 f4v_muxer_select="mov_muxer"
2265 flac_demuxer_select="flac_parser"
2266 hds_muxer_select="flv_muxer"
2267 hls_muxer_select="mpegts_muxer"
2268 ipod_muxer_select="mov_muxer"
2269 ismv_muxer_select="mov_muxer"
2270 matroska_audio_muxer_select="matroska_muxer"
2271 matroska_demuxer_select="iso_media riffdec"
2272 matroska_demuxer_suggest="bzlib lzo zlib"
2273 matroska_muxer_select="iso_media riffenc"
2274 mmf_muxer_select="riffenc"
2275 mov_demuxer_select="iso_media riffdec"
2276 mov_demuxer_suggest="zlib"
2277 mov_muxer_select="iso_media riffenc rtpenc_chain"
2278 mp3_demuxer_select="mpegaudio_parser"
2279 mp4_muxer_select="mov_muxer"
2280 mpegts_demuxer_select="iso_media"
2281 mpegts_muxer_select="adts_muxer latm_muxer"
2282 mpegtsraw_demuxer_select="mpegts_demuxer"
2283 mxf_d10_muxer_select="mxf_muxer"
2284 nut_muxer_select="riffenc"
2285 nuv_demuxer_select="riffdec"
2286 oga_muxer_select="ogg_muxer"
2287 ogg_demuxer_select="dirac_parse"
2288 opus_muxer_select="ogg_muxer"
2289 psp_muxer_select="mov_muxer"
2290 rtp_demuxer_select="sdp_demuxer"
2291 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2292 rtsp_demuxer_select="http_protocol rtpdec"
2293 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2294 sap_demuxer_select="sdp_demuxer"
2295 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2296 sdp_demuxer_select="rtpdec"
2297 smoothstreaming_muxer_select="ismv_muxer"
2298 spdif_muxer_select="aac_parser"
2299 spx_muxer_select="ogg_muxer"
2300 swf_demuxer_suggest="zlib"
2301 tak_demuxer_select="tak_parser"
2302 tg2_muxer_select="mov_muxer"
2303 tgp_muxer_select="mov_muxer"
2304 w64_demuxer_select="wav_demuxer"
2305 wav_demuxer_select="riffdec"
2306 wav_muxer_select="riffenc"
2307 webm_muxer_select="iso_media riffenc"
2308 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2309 wtv_demuxer_select="mpegts_demuxer riffdec"
2310 xmv_demuxer_select="riffdec"
2311 xwma_demuxer_select="riffdec"
2314 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2315 alsa_outdev_deps="alsa_asoundlib_h"
2316 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2317 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2318 dv1394_indev_deps="dv1394"
2319 dv1394_indev_select="dv_demuxer"
2320 fbdev_indev_deps="linux_fb_h"
2321 jack_indev_deps="jack_jack_h pthreads"
2322 libcdio_indev_deps="libcdio"
2323 libdc1394_indev_deps="libdc1394"
2324 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2325 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2326 pulse_indev_deps="libpulse"
2327 sndio_indev_deps="sndio_h"
2328 sndio_outdev_deps="sndio_h"
2329 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2330 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2331 vfwcap_indev_extralibs="-lavicap32"
2332 x11grab_indev_deps="x11grab"
2333 x11grab_xcb_indev_deps="libxcb"
2336 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2337 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2338 ffrtmpcrypt_protocol_select="tcp_protocol"
2339 ffrtmphttp_protocol_deps="!librtmp_protocol"
2340 ffrtmphttp_protocol_select="http_protocol"
2341 gopher_protocol_select="network"
2342 http_protocol_select="tcp_protocol"
2343 httpproxy_protocol_select="tcp_protocol"
2344 https_protocol_select="tls_protocol"
2345 icecast_protocol_select="http_protocol"
2346 librtmp_protocol_deps="librtmp"
2347 librtmpe_protocol_deps="librtmp"
2348 librtmps_protocol_deps="librtmp"
2349 librtmpt_protocol_deps="librtmp"
2350 librtmpte_protocol_deps="librtmp"
2351 mmsh_protocol_select="http_protocol"
2352 mmst_protocol_select="network"
2353 rtmp_protocol_deps="!librtmp_protocol"
2354 rtmp_protocol_select="tcp_protocol"
2355 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2356 rtmps_protocol_deps="!librtmp_protocol"
2357 rtmps_protocol_select="tls_protocol"
2358 rtmpt_protocol_select="ffrtmphttp_protocol"
2359 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2360 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2361 rtp_protocol_select="udp_protocol"
2362 sctp_protocol_deps="struct_sctp_event_subscribe"
2363 sctp_protocol_select="network"
2364 srtp_protocol_select="rtp_protocol"
2365 tcp_protocol_select="network"
2366 tls_gnutls_protocol_deps="gnutls"
2367 tls_gnutls_protocol_select="tcp_protocol"
2368 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2369 tls_openssl_protocol_select="tcp_protocol"
2370 tls_protocol_select_any="tls_gnutls_protocol tls_openssl_protocol"
2371 udp_protocol_select="network"
2372 unix_protocol_deps="sys_un_h"
2373 unix_protocol_select="network"
2376 blackframe_filter_deps="gpl"
2377 boxblur_filter_deps="gpl"
2378 bs2b_filter_deps="libbs2b"
2379 cropdetect_filter_deps="gpl"
2380 delogo_filter_deps="gpl"
2381 drawtext_filter_deps="libfreetype"
2382 frei0r_filter_deps="frei0r dlopen"
2383 frei0r_filter_extralibs='$ldl'
2384 frei0r_src_filter_deps="frei0r dlopen"
2385 frei0r_src_filter_extralibs='$ldl'
2386 hqdn3d_filter_deps="gpl"
2387 hwupload_cuda_filter_deps="cuda"
2388 interlace_filter_deps="gpl"
2389 ocv_filter_deps="libopencv"
2390 resample_filter_deps="avresample"
2391 scale_filter_deps="swscale"
2394 avcodec_example_deps="avcodec avutil"
2395 filter_audio_example_deps="avfilter avutil"
2396 metadata_example_deps="avformat avutil"
2397 output_example_deps="avcodec avformat avutil swscale"
2398 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2399 transcode_aac_example_deps="avcodec avformat avresample"
2401 # libraries, in linking order
2402 avcodec_deps="avutil"
2403 avdevice_deps="avformat avcodec avutil"
2404 avfilter_deps="avutil"
2405 avformat_deps="avcodec avutil"
2406 avresample_deps="avutil"
2407 swscale_deps="avutil"
2410 avconv_deps="avcodec avfilter avformat avresample swscale"
2411 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2412 fps_filter null_filter resample_filter scale_filter
2413 setpts_filter trim_filter"
2414 avplay_deps="avcodec avfilter avformat avresample sdl"
2415 avplay_libs='$sdl_libs'
2416 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2417 avprobe_deps="avcodec avformat"
2421 texi2html_deps="doc"
2423 # default parameters
2425 logfile="config.log"
2427 # installation paths
2428 prefix_default="/usr/local"
2429 bindir_default='${prefix}/bin'
2430 datadir_default='${prefix}/share/avconv'
2431 docdir_default='${prefix}/share/doc/libav'
2432 incdir_default='${prefix}/include'
2433 libdir_default='${prefix}/lib'
2434 mandir_default='${prefix}/share/man'
2435 shlibdir_default="$libdir_default"
2440 host_cc_default="gcc"
2445 pkg_config_default=pkg-config
2451 arch_default=$(uname -m)
2456 target_os_default=$(tolower $(uname -s))
2457 host_os=$target_os_default
2459 # configurable options
2463 enable faan faandct faanidct
2464 enable optimizations
2465 enable safe_bitstream_reader
2467 enable swscale_alpha
2468 enable valgrind_backtrace
2470 # By default, enable only those hwaccels that have no external dependencies.
2471 enable d3d11va dxva2 vda vdpau
2474 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2477 FULLNAME='$(NAME)$(BUILDSUF)'
2478 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2481 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2482 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2483 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2484 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2485 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2486 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2509 host_cflags_filter=echo
2510 host_ldflags_filter=echo
2512 target_path='$(CURDIR)'
2514 # since the object filename is not given with the -MM flag, the compiler
2515 # is only able to print the basename, and we must add the path ourselves
2516 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2520 if test -f configure; then
2523 source_path=$(cd $(dirname "$0"); pwd)
2524 echo "$source_path" | grep -q '[[:blank:]]' &&
2525 die "Out of tree builds are impossible with whitespace in source path."
2526 test -e "$source_path/config.h" &&
2527 die "Out of tree builds are impossible with config.h in source dir."
2534 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2540 file=$source_path/$3
2541 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2544 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2545 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2546 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2547 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2548 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2549 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2550 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2551 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2552 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2553 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2554 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2570 enable $ARCH_EXT_LIST
2573 echo "Unknown option \"$1\"."
2574 echo "See $0 --help for available options."
2579 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2585 echo $* | sed s/$suffix//g | print_3_columns
2597 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2598 echo "prob ${prob:-0.5}"
2606 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2607 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2616 --extra-ldexeflags=*)
2617 add_ldexeflags $optval
2620 add_extralibs $optval
2623 disable $INDEV_LIST $OUTDEV_LIST
2626 debuglevel="$optval"
2629 disable $PROGRAM_LIST
2631 --disable-everything)
2632 map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2633 enable_deep_force $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2636 map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2637 disable $LIBRARY_LIST $PROGRAM_LIST doc
2639 --enable-random|--disable-random)
2640 action=${opt%%-random}
2641 do_random ${action#--} $COMPONENT_LIST
2643 --enable-random=*|--disable-random=*)
2644 action=${opt%%-random=*}
2645 do_random ${action#--} $optval
2647 --enable-*=*|--disable-*=*)
2648 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2649 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2650 eval list=\$$(toupper $thing)_LIST
2651 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2652 test $action = enable && action="request"
2653 $action $(filter "$name" $list)
2655 --enable-avserver|--disable-avserver*)
2656 warn "avserver has been removed, the ${opt} option is only"\
2657 "provided for compatibility and will be removed in the future"
2659 --enable-?*|--disable-?*)
2660 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2661 if is_in $option $COMPONENT_LIST; then
2662 test $action = enable && action="enable_deep_force"
2663 eval $action \$$(toupper ${option%s})_LIST
2664 elif is_in $option $CMDLINE_SELECT; then
2665 test $action = enable && action="request"
2672 NAME="${opt#--list-}"
2673 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2675 eval show_list $NAME \$$(toupper $NAME)_LIST
2677 --help|-h) show_help
2680 optname="${opt%%=*}"
2681 optname="${optname#--}"
2682 optname=$(echo "$optname" | sed 's/-/_/g')
2683 if is_in $optname $CMDLINE_SET; then
2684 eval $optname='$optval'
2685 elif is_in $optname $CMDLINE_APPEND; then
2686 append $optname "$optval"
2698 disabled logging && logfile=/dev/null
2700 # Enable the default components if not disabled explicitly
2702 enable_weak $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2704 # Disable all the library-specific components if the library itself
2705 # is disabled, see AVCODEC_LIST and following _LIST variables.
2707 disable_components(){
2708 disabled ${1} && disable_weak $(
2709 eval components="\$$(toupper ${1})_COMPONENTS"
2710 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2714 map 'disable_components $v' $LIBRARY_LIST
2716 # Mark components that had not been enabled/disabled explicitly
2719 for n in $COMPONENT_LIST; do
2720 v=$(toupper ${n%s})_LIST
2721 eval enable_weak \$$v
2722 eval ${n}_if_any="\$$v"
2725 # Make so that disabled libraries are enabled if a component
2726 # of them is requested
2728 for n in $LIBRARY_LIST; do
2729 v=$(toupper ${n})_COMPONENTS
2730 eval ${n}_if_any="\$$v"
2733 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2736 case "$toolchain" in
2738 cc_default="${toolchain%-asan}"
2739 add_cflags -fsanitize=address
2740 add_ldflags -fsanitize=address
2743 cc_default="${toolchain%-tsan}"
2744 add_cflags -fsanitize=thread -pie
2745 add_ldflags -fsanitize=thread -pie
2746 case "$toolchain" in
2754 cc_default="${toolchain%-usan}"
2755 add_cflags -fsanitize=undefined
2756 add_ldflags -fsanitize=undefined
2757 case "$toolchain" in
2764 target_exec_default="valgrind"
2765 case "$toolchain" in
2767 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2770 target_exec_args="--track-origins=yes --leak-check=full"
2775 # Check whether the current MSVC version needs the C99 converter.
2776 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2777 # support enough of C99 to build libav. Default to the new
2778 # behaviour if the regexp was unable to match anything, since this
2779 # successfully parses the version number of existing supported
2780 # versions that require the converter (MSVC 2010 and 2012).
2781 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2782 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2785 cc_default="c99wrap cl"
2787 ld_default="$source_path/compat/windows/mslink"
2788 nm_default="dumpbin -symbols"
2795 target_os_default="win32"
2796 # Use a relative path for TMPDIR. This makes sure all the
2797 # ffconf temp files are written with a relative path, avoiding
2798 # issues with msys/win32 path conversion for MSVC parameters
2799 # such as -Fo<file> or -out:<file>.
2805 nm_default="dumpbin -symbols"
2807 target_os_default="win32"
2811 add_cflags -fprofile-arcs -ftest-coverage
2812 add_ldflags -fprofile-arcs -ftest-coverage
2815 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2816 add_cflags -fno-strict-overflow -fstack-protector-all
2817 add_ldflags -Wl,-z,relro -Wl,-z,now
2820 die "Unknown toolchain $toolchain"
2824 test -n "$cross_prefix" && enable cross_compile
2826 if enabled cross_compile; then
2827 test -n "$arch" && test -n "$target_os" ||
2828 die "Must specify target arch and OS when cross-compiling"
2831 ar_default="${cross_prefix}${ar_default}"
2832 cc_default="${cross_prefix}${cc_default}"
2833 occ_default="${cross_prefix}${occ_default}"
2834 nm_default="${cross_prefix}${nm_default}"
2835 pkg_config_default="${cross_prefix}${pkg_config_default}"
2836 ranlib="${cross_prefix}${ranlib}"
2837 strip="${cross_prefix}${strip}"
2839 sysinclude_default="${sysroot}/usr/include"
2841 set_default arch cc pkg_config sysinclude target_exec target_os
2842 enabled cross_compile || host_cc_default=$cc
2845 if ! $pkg_config --version >/dev/null 2>&1; then
2846 warn "$pkg_config not found, library detection may fail."
2852 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2856 EXESUF=$(exesuf $target_os)
2857 HOSTEXESUF=$(exesuf $host_os)
2859 # set temporary file name
2860 : ${TMPDIR:=$TEMPDIR}
2864 if ! check_cmd mktemp -u XXXXXX; then
2865 # simple replacement for missing mktemp
2866 # NOT SAFE FOR GENERAL USE
2868 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2873 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2874 (set -C; exec > $tmp) 2>/dev/null ||
2875 die "Unable to create temporary file in $TMPDIR."
2876 append TMPFILES $tmp
2880 trap 'rm -f -- $TMPFILES' EXIT
2884 tmpfile TMPE $EXESUF
2895 # make sure we can execute files in $TMPDIR
2896 cat > $TMPSH 2>> $logfile <<EOF
2899 chmod +x $TMPSH >> $logfile 2>&1
2900 if ! $TMPSH >> $logfile 2>&1; then
2902 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2903 variable to another directory and make sure that it is not mounted noexec.
2905 die "Sanity test failed."
2911 # Filter out MSVC cl.exe options from cflags that shouldn't
2912 # be passed to gas-preprocessor
2922 -std=c99) echo -c99 ;;
2923 -mcpu=*) echo -arch ${flag#*=} ;;
2924 -mieee) echo -ieee ;;
2925 -O*|-fast) echo $flag ;;
2926 -fno-math-errno) echo -assume nomath_errno ;;
2928 -Wall) echo -msg_enable level2 ;;
2929 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2930 -Wl,*) echo $flag ;;
2940 -Wno-switch) echo -Wno-switch-enum ;;
2941 -Wno-format-zero-length) ;;
2942 -Wdisabled-optimization) ;;
2943 -Wno-pointer-sign) echo -Wno-other ;;
2949 msvc_common_flags(){
2952 # In addition to specifying certain flags under the compiler
2953 # specific filters, they must be specified here as well or else the
2954 # generic catch all at the bottom will print the original flag.
2958 -fomit-frame-pointer) ;;
2962 -fno-signed-zeros) ;;
2966 -lz) echo zlib.lib ;;
2967 -lavifil32) echo vfw32.lib ;;
2968 -lavicap32) echo vfw32.lib user32.lib ;;
2969 -lx264) echo libx264.lib ;;
2970 -l*) echo ${flag#-l}.lib ;;
2971 -L*) echo -libpath:${flag#-L} ;;
2978 msvc_common_flags "$@"
2981 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2982 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2983 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2984 -wd4273 -wd4554 -wd4701 ;;
2990 msvc_common_flags "$@"
2993 # Despite what Intel's documentation says -Wall, which is supported
2994 # on Windows, does enable remarks so disable them here.
2995 -Wall) echo $flag -Qdiag-disable:remark ;;
2996 -std=c99) echo -Qstd=c99 ;;
3004 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3005 -fomit-frame-pointer) echo -Mnoframe ;;
3016 case "${flag#*=}" in
3017 native) echo -xtarget=native ;;
3018 v9|niagara) echo -xarch=sparc ;;
3019 ultrasparc) echo -xarch=sparcvis ;;
3020 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3021 i586|pentium) echo -xchip=pentium ;;
3022 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3023 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3024 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3025 pentium4*) echo -xtarget=pentium4 ;;
3026 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3027 *-sse3) echo -xarch=sse3 ;;
3028 core2) echo -xarch=ssse3 -xchip=core2 ;;
3029 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3030 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3031 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3032 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3033 k8|opteron|athlon64|athlon-fx)
3034 echo -xarch=sse2a ;;
3035 athlon*) echo -xarch=pentium_proa ;;
3038 -std=c99) echo -xc99 ;;
3039 -fomit-frame-pointer) echo -xregs=frameptr ;;
3040 -fPIC) echo -KPIC -xcode=pic32 ;;
3041 -W*,*) echo $flag ;;
3042 -f*-*|-W*|-mimpure-text) ;;
3053 case "${flag#*=}" in
3054 armv7-a|cortex-a*) echo -mv=7a8 ;;
3055 armv7-r|cortex-r*) echo -mv=7r4 ;;
3056 armv7-m|cortex-m*) echo -mv=7m3 ;;
3057 armv6*|arm11*) echo -mv=6 ;;
3058 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3060 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3063 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3064 -mfpu=vfp) echo --float_support=vfpv2 ;;
3065 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3066 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3067 -msoft-float) echo --float_support=vfplib ;;
3068 -O[0-3]|-mf=*) echo $flag ;;
3070 -pds=*) echo $flag ;;
3071 -D*|-I*) echo $flag ;;
3072 --gcc|--abi=*) echo $flag ;;
3082 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3083 unset _ld_o _ldflags _ld_lib _ld_path
3084 unset _depflags _DEPCMD _DEPFLAGS
3087 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3089 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3090 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3091 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3094 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3096 gcc_version=$($_cc --version | head -n1)
3097 gcc_basever=$($_cc -dumpversion)
3098 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3099 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3100 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3101 if ! $_cc -dumpversion | grep -q '^2\.'; then
3102 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3106 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3108 _ident=$($_cc --version | head -n1)
3113 elif $_cc -v 2>&1 | grep -q xlc; then
3115 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3117 _cflags_size='-O5 -qcompact'
3118 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3120 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3122 _cflags_speed='-fast'
3124 _flags_filter=ccc_flags
3125 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3126 test -d "$sysroot" || die "No valid sysroot specified."
3128 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3129 armcc_conf="$PWD/armcc.conf"
3130 $_cc --arm_linux_configure \
3131 --arm_linux_config_file="$armcc_conf" \
3132 --configure_sysroot="$sysroot" \
3133 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3134 die "Error creating armcc configuration file."
3135 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3136 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3137 as_default="${cross_prefix}gcc"
3141 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3143 _ident=$($_cc -version | head -n1 | tr -s ' ')
3144 _flags='--gcc --abi=eabi -me'
3147 _depflags='-ppa -ppd=$(@:.o=.d)'
3148 _cflags_speed='-O3 -mf=5'
3149 _cflags_size='-O3 -mf=2'
3150 _flags_filter=tms470_flags
3151 elif $_cc -v 2>&1 | grep -q clang; then
3153 _ident=$($_cc --version 2>/dev/null | head -n1)
3154 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3157 elif $_cc -V 2>&1 | grep -q Sun; then
3159 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3160 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3161 _DEPFLAGS='-xM1 -xc99'
3164 _cflags_size='-O5 -xspace'
3165 _flags_filter=suncc_flags
3166 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3168 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3169 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3172 _flags_filter='filter_out -Wdisabled-optimization'
3173 elif $_cc -v 2>&1 | grep -q Open64; then
3175 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3176 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3179 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3180 elif $_cc -V 2>&1 | grep -q Portland; then
3182 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3183 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3184 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3185 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3187 _flags_filter=pgi_flags
3188 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3190 _ident=$($_cc | head -n1)
3191 # 4509: "This form of conditional instruction is deprecated"
3192 _flags="-nologo -ignore 4509"
3193 _flags_filter=armasm_flags
3194 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3196 _ident=$($_cc 2>&1 | head -n1)
3197 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3198 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3201 if $_cc -nologo- 2>&1 | grep -q Linker; then
3208 _flags_filter=msvc_flags
3210 _ld_path='-libpath:'
3212 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3213 elif $_cc 2>&1 | grep -q Intel; then
3215 _ident=$($_cc 2>&1 | head -n1)
3216 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3217 # Not only is O3 broken on 13.x+ but it is slower on all previous
3218 # versions (tested) as well.
3220 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3221 if $_cc 2>&1 | grep -q Linker; then
3228 _flags_filter=icl_flags
3230 _ld_path='-libpath:'
3231 # -Qdiag-error to make icl error when seeing certain unknown arguments
3232 _flags='-nologo -Qdiag-error:4044,10157'
3233 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3234 # with MSVC which enables it by default.
3235 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3236 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3238 _ident=$($_cc --version | head -n1)
3242 _flags_filter=cparser_flags
3245 eval ${pfx}_type=\$_type
3246 eval ${pfx}_ident=\$_ident
3250 eval ${1}_C=\${_cc_c-\${${1}_C}}
3251 eval ${1}_E=\${_cc_e-\${${1}_E}}
3252 eval ${1}_O=\${_cc_o-\${${1}_O}}
3254 if [ -n "$_depflags" ]; then
3255 eval ${1}_DEPFLAGS=\$_depflags
3257 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3258 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3259 eval DEP${1}FLAGS=\$_flags
3264 cflags_filter=$_flags_filter
3265 cflags_speed=$_cflags_speed
3266 cflags_size=$_cflags_size
3267 cflags_noopt=$_cflags_noopt
3268 add_cflags $_flags $_cflags
3269 cc_ldflags=$_ldflags
3272 probe_cc hostcc "$host_cc"
3273 host_cflags_filter=$_flags_filter
3274 add_host_cflags $_flags $_cflags
3277 test -n "$cc_type" && enable $cc_type ||
3278 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3280 : ${as_default:=$cc}
3281 : ${objcc_default:=$cc}
3282 : ${dep_cc_default:=$cc}
3283 : ${ld_default:=$cc}
3284 : ${host_ld_default:=$host_cc}
3285 set_default ar as objcc dep_cc ld host_ld
3288 asflags_filter=$_flags_filter
3289 add_asflags $_flags $_cflags
3292 probe_cc objcc "$objcc"
3293 objcflags_filter=$_flags_filter
3294 add_objcflags $_flags $_cflags
3298 ldflags_filter=$_flags_filter
3299 add_ldflags $_flags $_ldflags
3300 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3302 LD_LIB=${_ld_lib-$LD_LIB}
3303 LD_PATH=${_ld_path-$LD_PATH}
3305 probe_cc hostld "$host_ld"
3306 host_ldflags_filter=$_flags_filter
3307 add_host_ldflags $_flags $_ldflags
3308 HOSTLD_O=${_ld_o-$HOSTLD_O}
3310 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3311 probe_cc depcc "$dep_cc"
3312 CCDEP=${_DEPCMD:-$DEPCMD}
3313 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3317 if $ar 2>&1 | grep -q Microsoft; then
3320 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3323 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3324 arflags='-Xany -r -c'
3331 add_cflags $extra_cflags
3332 add_objcflags $extra_objcflags
3333 add_asflags $extra_cflags
3335 if test -n "$sysroot"; then
3338 add_cppflags --sysroot="$sysroot"
3339 add_ldflags --sysroot="$sysroot"
3342 add_cppflags -I"$sysinclude"
3343 add_ldflags --sysroot="$sysroot"
3348 if test "$cpu" = host; then
3349 enabled cross_compile &&
3350 die "--cpu=host makes no sense when cross-compiling."
3355 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3357 s/.*$1=\\([^ ]*\\).*/\\1/
3362 cpu=$(check_native -march || check_native -mcpu)
3366 test "${cpu:-host}" = host &&
3367 die "--cpu=host not supported with compiler $cc"
3370 # Deal with common $arch aliases
3394 "Power Macintosh"|ppc*|powerpc*)
3409 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3414 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3417 # Add processor-specific flags
3418 if enabled aarch64; then
3422 cpuflags="-march=$cpu"
3425 cpuflags="-mcpu=$cpu"
3429 elif enabled alpha; then
3431 cpuflags="-mcpu=$cpu"
3433 elif enabled arm; then
3436 check_cpp_condition stddef.h \
3437 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3442 if check_arm_arch 4; then echo armv4;
3443 elif check_arm_arch 4T; then echo armv4t;
3444 elif check_arm_arch 5; then echo armv5;
3445 elif check_arm_arch 5E; then echo armv5e;
3446 elif check_arm_arch 5T; then echo armv5t;
3447 elif check_arm_arch 5TE; then echo armv5te;
3448 elif check_arm_arch 5TEJ; then echo armv5te;
3449 elif check_arm_arch 6; then echo armv6;
3450 elif check_arm_arch 6J; then echo armv6j;
3451 elif check_arm_arch 6K; then echo armv6k;
3452 elif check_arm_arch 6Z; then echo armv6z;
3453 elif check_arm_arch 6ZK; then echo armv6zk;
3454 elif check_arm_arch 6T2; then echo armv6t2;
3455 elif check_arm_arch 7; then echo armv7;
3456 elif check_arm_arch 7A 7_A; then echo armv7-a;
3457 elif check_arm_arch 7S; then echo armv7-a;
3458 elif check_arm_arch 7R 7_R; then echo armv7-r;
3459 elif check_arm_arch 7M 7_M; then echo armv7-m;
3460 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3461 elif check_arm_arch 8A 8_A; then echo armv8-a;
3465 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3469 cpuflags="-march=$cpu"
3470 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3473 cpuflags="-mcpu=$cpu"
3475 cortex-a*) subarch=armv7a ;;
3476 cortex-r*) subarch=armv7r ;;
3477 cortex-m*) enable thumb; subarch=armv7m ;;
3478 arm11*) subarch=armv6 ;;
3479 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3480 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3481 *) subarch=$(probe_arm_arch) ;;
3487 armv5t*) enable fast_clz ;;
3488 armv[6-8]*) enable fast_clz fast_unaligned ;;
3491 elif enabled avr32; then
3496 cpuflags="-mpart=$cpu"
3500 cpuflags="-march=$cpu"
3504 cpuflags="-mcpu=$cpu"
3508 cpuflags="-march=$cpu"
3512 elif enabled bfin; then
3514 cpuflags="-mcpu=$cpu"
3516 elif enabled mips; then
3518 cpuflags="-march=$cpu"
3520 elif enabled ppc; then
3524 case $(tolower $cpu) in
3525 601|ppc601|powerpc601)
3526 cpuflags="-mcpu=601"
3529 603*|ppc603*|powerpc603*)
3530 cpuflags="-mcpu=603"
3533 604*|ppc604*|powerpc604*)
3534 cpuflags="-mcpu=604"
3537 g3|75*|ppc75*|powerpc75*)
3538 cpuflags="-mcpu=750"
3541 g4|745*|ppc745*|powerpc745*)
3542 cpuflags="-mcpu=7450"
3545 74*|ppc74*|powerpc74*)
3546 cpuflags="-mcpu=7400"
3549 g5|970|ppc970|powerpc970)
3550 cpuflags="-mcpu=970"
3554 cpuflags="-mcpu=$cpu"
3558 cpuflags="-mcpu=$cpu"
3562 cpuflags="-mcpu=cell"
3567 cpuflags="-mcpu=e500mc"
3571 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3576 cpuflags="-mcpu=8540 -mhard-float"
3582 elif enabled sparc; then
3585 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3586 cpuflags="-mcpu=$cpu"
3588 ultrasparc*|niagara[234])
3589 cpuflags="-mcpu=$cpu"
3593 elif enabled x86; then
3597 cpuflags="-march=$cpu"
3601 # targets that do NOT support nopl and conditional mov (cmov)
3602 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3603 cpuflags="-march=$cpu"
3606 # targets that do support nopl and conditional mov (cmov)
3607 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3608 cpuflags="-march=$cpu"
3612 # targets that do support conditional mov but on which it's slow
3613 pentium4|pentium4m|prescott|nocona)
3614 cpuflags="-march=$cpu"
3622 if [ "$cpu" != generic ]; then
3623 add_cflags $cpuflags
3624 add_asflags $cpuflags
3625 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3628 # compiler sanity check
3630 int main(void){ return 0; }
3632 if test "$?" != 0; then
3633 echo "$cc is unable to create an executable file."
3634 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3635 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3636 echo "Only do this if you know what cross compiling means."
3638 die "C compiler test failed."
3641 add_cppflags -D_ISOC99_SOURCE
3642 check_cflags -std=c99
3643 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3646 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3650 add_host_cppflags -D_ISOC99_SOURCE
3651 check_host_cflags -std=c99
3652 check_host_cflags -Wall
3653 check_host_cflags -O3
3659 check_code cc "" "int test[2*($expr) - 1]" &&
3660 subarch=$arch64 || subarch=$arch32
3668 check_64bit mips mips64 '_MIPS_SIM > 1'
3672 check_64bit parisc parisc64 'sizeof(void *) > 4'
3676 check_64bit ppc ppc64 'sizeof(void *) > 4'
3680 check_64bit s390 s390x 'sizeof(void *) > 4'
3684 check_64bit sparc sparc64 'sizeof(void *) > 4'
3688 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3689 if test "$subarch" = "x86_64"; then
3696 enabled spic && enable_weak pic
3702 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3703 enabled shared && add_ldflags -Wl,-brtl
3707 enable section_data_rel_ro
3708 SLIB_INSTALL_NAME='$(SLIBNAME)'
3710 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3713 prefix_default="/boot/common"
3714 network_extralibs="-lnetwork"
3718 SHFLAGS='-shared -Wl,-h,$$(@F)'
3719 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3720 network_extralibs="-lsocket -lnsl"
3721 # When using suncc to build, the Solaris linker will mark
3722 # an executable with each instruction set encountered by
3723 # the Solaris assembler. As our libraries contain their own
3724 # guards for processor-specific code, instead suppress
3725 # generation of the HWCAPS ELF section on Solaris x86 only.
3726 enabled_all suncc x86 &&
3727 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3728 add_ldflags -Wl,-M,mapfile
3729 nm_default='nm -P -g'
3730 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3734 oss_indev_extralibs="-lossaudio"
3735 oss_outdev_extralibs="-lossaudio"
3740 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3742 oss_indev_extralibs="-lossaudio"
3743 oss_outdev_extralibs="-lossaudio"
3751 add_extralibs -lpoll -lgnugetopt
3754 enabled ppc && add_asflags -force_cpusubtype_ALL
3755 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3756 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3757 add_ldflags -Wl,-dynamic,-search_paths_first
3759 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3760 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3762 enabled x86_64 && objformat="macho64"
3763 enabled_any pic shared ||
3764 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3767 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3770 if test $target_os = "mingw32ce"; then
3776 if enabled x86_64; then
3777 LIBTARGET="i386:x86-64"
3778 elif enabled arm; then
3781 check_ldflags -Wl,--nxcompat
3782 check_ldflags -Wl,--dynamicbase
3783 shlibdir_default="$bindir_default"
3786 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3787 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3788 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3789 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3791 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3792 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3793 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3795 dlltool="${cross_prefix}dlltool"
3801 if enabled shared; then
3802 # Link to the import library instead of the normal static library
3805 # Cannot build both shared and static libs with MSVC or icl.
3808 shlibdir_default="$bindir_default"
3811 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3812 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3813 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3814 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3816 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3817 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3818 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3825 shlibdir_default="$bindir_default"
3828 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3829 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3830 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3832 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3833 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3837 *-dos|freedos|opendos)
3838 network_extralibs="-lsocket"
3841 add_cppflags -U__STRICT_ANSI__
3845 enable section_data_rel_ro
3849 ranlib="echo ignoring ranlib"
3854 add_cppflags -D_GNU_SOURCE
3855 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3856 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3860 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3861 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3862 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3863 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3864 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3865 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3866 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3867 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3868 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3869 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3873 add_cppflags -D_BSD_SOURCE
3878 add_cppflags -D_QNX_SOURCE
3879 network_extralibs="-lsocket"
3884 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3885 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3886 add_ldflags -Wl,--target1-abs,--no-undefined \
3887 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3888 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3889 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3890 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3891 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3894 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3899 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3900 -D_REENTRANT_SOURCE \
3901 -D_RESEARCH_SOURCE \
3904 add_compat strtod.o strtod=avpriv_strtod
3905 network_extralibs='-lbsd'
3906 exeobjs=compat/plan9/main.o
3912 die "Unknown OS '$target_os'."
3916 # determine libc flavour
3921 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3922 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3923 eval ${pfx}libc_type=uclibc
3924 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3925 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3926 eval ${pfx}libc_type=glibc
3927 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3928 # MinGW headers can be installed on Cygwin, so check for newlib first.
3929 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3930 eval ${pfx}libc_type=newlib
3931 add_${pfx}cppflags -U__STRICT_ANSI__
3932 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3933 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3934 eval ${pfx}libc_type=mingw64
3935 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3936 eval test \$${pfx_no_}cc_type = "gcc" &&
3937 add_${pfx}cppflags -D__printf__=__gnu_printf__
3938 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3939 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3940 eval ${pfx}libc_type=mingw32
3941 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3942 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3943 die "ERROR: MinGW32 runtime version must be >= 3.15."
3944 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3945 eval test \$${pfx_no_}cc_type = "gcc" &&
3946 add_${pfx}cppflags -D__printf__=__gnu_printf__
3947 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3948 eval ${pfx}libc_type=msvcrt
3949 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3950 if [ "$pfx" = host_ ]; then
3951 add_host_cppflags -Dsnprintf=_snprintf
3953 add_compat strtod.o strtod=avpriv_strtod
3954 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3955 _snprintf=avpriv_snprintf \
3956 vsnprintf=avpriv_vsnprintf
3959 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3960 # 0x601 by default unless something else is set by the user.
3961 # This can easily lead to us detecting functions only present
3962 # in such new versions and producing binaries requiring windows 7.0.
3963 # Therefore explicitly set the default to XP unless the user has
3964 # set something else on the command line.
3965 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3966 # family. For these cases, configure is free to use any functions
3967 # found in the SDK headers by default. (Alternatively, we could force
3968 # _WIN32_WINNT to 0x0602 in that case.)
3969 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3970 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3971 #ifdef WINAPI_FAMILY
3972 #include <winapifamily.h>
3973 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3978 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3979 eval ${pfx}libc_type=klibc
3980 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3981 eval ${pfx}libc_type=bionic
3982 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3983 eval ${pfx}libc_type=solaris
3984 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3986 eval ${pfx}libc_type=default
3987 add_${pfx}cppflags -D_DEFAULT_SOURCE
3992 test -n "$libc_type" && enable libc_$libc_type
3994 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3998 add_compat strtod.o strtod=avpriv_strtod
4002 # hacks for compiler/libc/os combinations
4004 if enabled_all tms470 libc_glibc; then
4005 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4006 add_cppflags -D__USER_LABEL_PREFIX__=
4007 add_cppflags -D__builtin_memset=memset
4008 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4009 add_cflags -pds=48 # incompatible redefinition of macro
4012 if enabled_all ccc libc_glibc; then
4013 add_ldflags -Wl,-z,now # calls to libots crash without this
4016 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4017 add_cppflags '-I\$(SRC_PATH)/compat/float'
4020 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4023 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4025 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4027 set_default $PATHS_LIST
4030 # we need to build at least one lib type
4031 if ! enabled_any static shared; then
4033 At least one library type must be built.
4034 Specify --enable-static to build the static libraries or --enable-shared to
4035 build the shared libraries as well. To only build the shared libraries specify
4036 --disable-static in addition to --enable-shared.
4041 die_license_disabled() {
4042 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4045 die_license_disabled gpl libcdio
4046 die_license_disabled gpl libx264
4047 die_license_disabled gpl libx265
4048 die_license_disabled gpl libxavs
4049 die_license_disabled gpl libxvid
4050 die_license_disabled gpl x11grab
4052 die_license_disabled nonfree cuda
4053 die_license_disabled nonfree libfaac
4054 die_license_disabled nonfree libfdk_aac
4055 die_license_disabled nonfree nvenc
4056 die_license_disabled nonfree openssl
4058 die_license_disabled version3 libopencore_amrnb
4059 die_license_disabled version3 libopencore_amrwb
4060 die_license_disabled version3 libvo_aacenc
4061 die_license_disabled version3 libvo_amrwbenc
4063 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4065 disabled optimizations || check_cflags -fomit-frame-pointer
4068 disabled pic && return
4071 case "$target_os" in
4081 enabled pic && enable_weak_pic
4083 check_cc <<EOF || die "Symbol mangling check failed."
4086 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4087 extern_prefix=${sym%%ff_extern*}
4089 check_cc <<EOF && enable_weak inline_asm
4090 void foo(void) { __asm__ volatile ("" ::); }
4094 for restrict_keyword in restrict __restrict__ __restrict; do
4095 check_cc <<EOF && _restrict=$restrict_keyword && break
4096 void foo(char * $restrict_keyword p);
4100 check_cc <<EOF && enable pragma_deprecated
4101 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4104 check_cc <<EOF && enable attribute_packed
4105 struct { int x; } __attribute__((packed)) x;
4108 check_cc <<EOF && enable attribute_may_alias
4109 union { int x; } __attribute__((may_alias)) x;
4112 check_cc <<EOF || die "endian test failed"
4113 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4115 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4118 log "check_gas using '$as' as AS"
4119 # :vararg is used on aarch64, arm and ppc altivec
4120 check_as <<EOF || return 1
4121 .macro m n, y:vararg=0
4126 # .altmacro is only used in arm asm
4127 ! enabled arm || check_as <<EOF || return 1
4134 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4136 enabled_any arm aarch64 && nogas=die
4137 enabled_all ppc altivec && nogas=warn
4141 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4142 gcc) gaspp_as_type=gas ;;
4143 *) gaspp_as_type=$as_type ;;
4146 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4148 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4149 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4151 if ! check_gas ; then
4154 $nogas "GNU assembler not found, install/update gas-preprocessor"
4157 check_as <<EOF && enable as_func
4163 check_inline_asm inline_asm_labels '"1:\n"'
4165 if enabled aarch64; then
4166 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4167 # internal assembler in clang 3.3 does not support this instruction
4168 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4169 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4171 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4173 elif enabled alpha; then
4177 elif enabled arm; then
4179 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4180 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4181 enabled thumb && check_cflags -mthumb || check_cflags -marm
4183 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4185 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4187 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4188 case "${cross_prefix:-$cc}" in
4189 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4190 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4191 __asm__ (".eabi_attribute 28, 1");
4192 int main(void) { return 0; }
4195 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4198 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4199 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4200 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4201 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4202 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4203 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4205 [ $target_os = linux ] || [ $target_os = android ] ||
4206 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4209 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4211 check_as <<EOF && enable as_dn_directive
4216 # llvm's integrated assembler supports .object_arch from llvm 3.5
4217 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4221 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4223 elif enabled mips; then
4225 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4227 # make sure that only an instruction set is enabled
4228 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4230 if enabled mips64; then
4231 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4232 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4233 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4235 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4236 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4237 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4240 elif enabled parisc; then
4242 if enabled gcc; then
4243 case $($cc -dumpversion) in
4244 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4248 elif enabled ppc; then
4250 enable local_aligned_8 local_aligned_16
4252 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4253 check_inline_asm ibm_asm '"add 0, 0, 0"'
4254 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4255 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4257 # AltiVec flags: The FSF version of GCC differs from the Apple version
4258 if enabled altivec; then
4259 check_cflags -maltivec -mabi=altivec &&
4260 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4261 check_cflags -faltivec
4263 # check if our compiler supports Motorola AltiVec C API
4264 check_cc <<EOF || disable altivec
4267 vector signed int v1 = (vector signed int) { 0 };
4268 vector signed int v2 = (vector signed int) { 1 };
4269 v1 = vec_add(v1, v2);
4274 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4277 if enabled vsx; then
4278 check_cflags -mvsx &&
4279 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4282 if enabled power8; then
4283 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4286 elif enabled x86; then
4288 check_builtin rdtsc intrin.h "__rdtsc()"
4289 check_builtin mm_empty mmintrin.h "_mm_empty()"
4291 enable local_aligned_8 local_aligned_16
4293 # check whether EBP is available on x86
4294 # As 'i' is stored on the stack, this program will crash
4295 # if the base pointer is used to access it because the
4296 # base pointer is cleared in the inline assembly code.
4297 check_exec_crash <<EOF && enable ebp_available
4299 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4303 # check whether EBX is available on x86
4304 check_inline_asm ebx_available '""::"b"(0)' &&
4305 check_inline_asm ebx_available '"":::"%ebx"'
4307 # check whether xmm clobbers are supported
4308 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4310 # check whether binutils is new enough to compile SSSE3/MMXEXT
4311 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4312 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4314 if ! disabled_any asm mmx yasm; then
4315 if check_cmd $yasmexe --version; then
4316 enabled x86_64 && yasm_extra="-m amd64"
4317 yasm_debug="-g dwarf2"
4318 elif check_cmd nasm -v; then
4320 yasm_debug="-g -F dwarf"
4321 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4324 YASMFLAGS="-f $objformat $yasm_extra"
4325 enabled pic && append YASMFLAGS "-DPIC"
4326 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4327 case "$objformat" in
4328 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4331 check_yasm "movbe ecx, [5]" && enable yasm ||
4332 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4333 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4334 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4335 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4336 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4337 check_yasm "CPU amdnop" || disable cpunop
4341 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4348 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4350 check_ldflags -Wl,--as-needed
4352 if check_func dlopen; then
4354 elif check_func dlopen -ldl; then
4358 if ! disabled network; then
4359 check_func getaddrinfo $network_extralibs
4360 check_func inet_aton $network_extralibs
4362 check_type netdb.h "struct addrinfo"
4363 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4364 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4365 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4366 check_type poll.h "struct pollfd"
4367 check_type netinet/sctp.h "struct sctp_event_subscribe"
4368 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4369 check_type netinet/in.h "struct sockaddr_in6"
4370 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4371 check_type "sys/types.h sys/socket.h" socklen_t
4373 # Prefer arpa/inet.h over winsock2
4374 if check_header arpa/inet.h ; then
4375 check_func closesocket
4376 elif check_header winsock2.h ; then
4377 check_func_headers winsock2.h closesocket -lws2 &&
4378 network_extralibs="-lws2" ||
4379 { check_func_headers winsock2.h closesocket -lws2_32 &&
4380 network_extralibs="-lws2_32"; } || disable winsock2_h network
4381 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4383 check_type ws2tcpip.h socklen_t
4384 check_type ws2tcpip.h "struct addrinfo"
4385 check_type ws2tcpip.h "struct group_source_req"
4386 check_type ws2tcpip.h "struct ip_mreq_source"
4387 check_type ws2tcpip.h "struct ipv6_mreq"
4388 check_type winsock2.h "struct pollfd"
4389 check_struct winsock2.h "struct sockaddr" sa_len
4390 check_type ws2tcpip.h "struct sockaddr_in6"
4391 check_type ws2tcpip.h "struct sockaddr_storage"
4397 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4398 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4399 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4400 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4402 case "$custom_allocator" in
4404 # jemalloc by default does not use a prefix
4405 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4408 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4413 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4414 check_func ${malloc_prefix}memalign && enable memalign
4415 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4417 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4418 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4422 check_func gethrtime
4424 check_func getrusage
4425 check_func gettimeofday
4428 check_func localtime_r
4429 check_func mach_absolute_time
4433 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4434 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4435 check_func sched_getaffinity
4436 check_func setrlimit
4437 check_func strerror_r
4442 check_func_headers io.h setmode
4443 check_func_headers stdlib.h getenv
4445 check_func_headers windows.h CoTaskMemFree -lole32
4446 check_func_headers windows.h GetProcessAffinityMask
4447 check_func_headers windows.h GetProcessTimes
4448 check_func_headers windows.h GetSystemTimeAsFileTime
4449 check_func_headers windows.h LoadLibrary
4450 check_func_headers windows.h MapViewOfFile
4451 check_func_headers windows.h SetConsoleTextAttribute
4452 check_func_headers windows.h Sleep
4453 check_func_headers windows.h VirtualAlloc
4454 check_struct windows.h "CONDITION_VARIABLE" Ptr
4456 check_header direct.h
4457 check_header dlfcn.h
4458 check_header d3d11.h
4460 check_header dxva2api.h
4462 check_header mach/mach_time.h
4463 check_header malloc.h
4465 check_header sys/mman.h
4466 check_header sys/param.h
4467 check_header sys/resource.h
4468 check_header sys/select.h
4469 check_header sys/time.h
4470 check_header sys/un.h
4471 check_header unistd.h
4472 check_header valgrind/valgrind.h
4473 check_header vdpau/vdpau.h
4474 check_header vdpau/vdpau_x11.h
4475 check_header VideoDecodeAcceleration/VDADecoder.h
4476 check_header windows.h
4477 check_header X11/extensions/XvMClib.h
4479 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4480 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4481 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4483 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4485 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4486 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4487 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4489 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4491 if ! disabled w32threads && ! enabled pthreads; then
4492 check_func_headers "windows.h process.h" _beginthreadex &&
4493 enable w32threads || disable w32threads
4496 # check for some common methods of building with pthread support
4497 # do this before the optional library checks as some of them require pthreads
4498 if ! disabled pthreads && ! enabled w32threads; then
4500 if check_func pthread_join -pthread; then
4502 add_extralibs -pthread
4503 elif check_func pthread_join -pthreads; then
4504 add_cflags -pthreads
4505 add_extralibs -pthreads
4506 elif check_func pthread_join -lpthreadGC2; then
4507 add_extralibs -lpthreadGC2
4508 elif check_lib pthread.h pthread_join -lpthread; then
4510 elif ! check_func pthread_join; then
4515 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4516 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4518 check_lib math.h sin -lm && LIBM="-lm"
4519 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4525 for func in $MATH_FUNCS; do
4526 eval check_mathfunc $func \${${func}_args:-1}
4529 # these are off by default, so fail if requested and not available
4530 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4531 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4532 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4533 enabled cuda && check_lib cuda.h cuInit -lcuda
4534 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4535 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4536 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4537 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4538 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4539 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4540 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4541 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4542 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4543 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4544 done || die "ERROR: libgsm not found"; }
4545 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4546 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4547 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4548 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4549 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4550 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4551 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4552 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4553 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4554 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4555 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4556 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4557 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4558 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4559 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4560 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4561 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4562 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4563 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4564 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4565 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4566 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4567 enabled libvpx_vp8_decoder && {
4568 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4569 disable libvpx_vp8_decoder;
4571 enabled libvpx_vp8_encoder && {
4572 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4573 disable libvpx_vp8_encoder;
4575 enabled libvpx_vp9_decoder && {
4576 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4577 disable libvpx_vp9_decoder;
4579 enabled libvpx_vp9_encoder && {
4580 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4581 disable libvpx_vp9_encoder;
4583 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4584 die "libvpx enabled but no supported decoders found"
4587 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4588 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4589 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4590 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4591 die "ERROR: libx264 version must be >= 0.118."; } &&
4592 { check_cpp_condition x264.h "X264_MPEG2" &&
4594 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4595 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4596 die "ERROR: libx265 version must be >= 57."; }
4597 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4598 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4599 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4600 { ! enabled cross_compile && {
4601 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4602 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4603 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4604 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4605 die "ERROR: mmal not found"; }
4606 enabled openssl && { check_pkg_config openssl openssl/ssl.h SSL_library_init && {
4607 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4608 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4609 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4610 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4611 die "ERROR: openssl not found"; }
4613 if enabled gnutls; then
4614 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4615 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4619 if enabled libdc1394; then
4620 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4621 enable libdc1394_2; } ||
4622 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4623 enable libdc1394_1; } ||
4624 die "ERROR: No version of libdc1394 found "
4627 if enabled nvenc; then
4628 enabled cuda || check_header cuda.h || die "ERROR: cuda.h not found.";
4629 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4630 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4631 die "ERROR: NVENC API version 4 or older is not supported";
4634 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4635 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4636 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4640 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4641 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4643 check_header linux/fb.h
4644 check_header linux/videodev2.h
4645 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4647 check_header AVFoundation/AVFoundation.h &&
4648 check_objcflags -fobjc-arc &&
4649 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4650 disable AVFoundation_AVFoundation_h
4652 check_header sys/videoio.h
4654 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4655 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4656 # w32api 3.12 had it defined wrong
4657 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4659 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4660 { check_header dev/bktr/ioctl_meteor.h &&
4661 check_header dev/bktr/ioctl_bt848.h; } ||
4662 { check_header machine/ioctl_meteor.h &&
4663 check_header machine/ioctl_bt848.h; } ||
4664 { check_header dev/video/meteor/ioctl_meteor.h &&
4665 check_header dev/video/bktr/ioctl_bt848.h; } ||
4666 check_header dev/ic/bt8xx.h
4668 check_header sndio.h
4669 check_header sys/soundcard.h
4670 check_header soundcard.h
4672 enabled_any alsa_indev alsa_outdev &&
4673 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4675 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4676 check_func jack_port_get_latency_range -ljack
4678 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4680 if enabled libcdio; then
4681 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4682 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4683 die "ERROR: No usable libcdio/cdparanoia found"
4686 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4688 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4689 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4690 enabled libxcb && die "ERROR: libxcb not found";
4691 } && disable x11grab && enable libxcb
4693 disabled libxcb_shm ||
4694 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4695 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4696 } && check_header sys/shm.h && enable libxcb_shm
4698 disabled libxcb_xfixes ||
4699 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4700 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4701 } && enable libxcb_xfixes
4703 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4704 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4707 if enabled x11grab; then
4708 enabled xlib || die "ERROR: Xlib not found"
4709 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4710 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4713 enabled vaapi && enabled xlib &&
4714 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4718 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4721 enabled vdpau && enabled xlib &&
4722 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4723 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4726 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4728 # add some useful compiler flags if supported
4729 check_cflags -Wdeclaration-after-statement
4731 check_cflags -Wdisabled-optimization
4732 check_cflags -Wpointer-arith
4733 check_cflags -Wredundant-decls
4734 check_cflags -Wwrite-strings
4735 check_cflags -Wtype-limits
4736 check_cflags -Wundef
4737 check_cflags -Wmissing-prototypes
4738 check_cflags -Wstrict-prototypes
4739 enabled extra_warnings && check_cflags -Winline
4740 enabled extra_warnings && check_cflags -Wcast-qual
4742 check_disable_warning(){
4743 warning_flag=-W${1#-Wno-}
4744 test_cflags $warning_flag && add_cflags $1
4747 check_disable_warning -Wno-parentheses
4748 check_disable_warning -Wno-switch
4749 check_disable_warning -Wno-format-zero-length
4750 check_disable_warning -Wno-pointer-sign
4752 # add some linker flags
4753 check_ldflags -Wl,--warn-common
4754 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4755 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4756 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4758 # add some strip flags
4759 # -wN '..@*' is more selective than -x, but not available everywhere.
4760 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4762 enabled neon_clobber_test &&
4763 check_ldflags -Wl,--wrap,avcodec_open2 \
4764 -Wl,--wrap,avcodec_decode_audio4 \
4765 -Wl,--wrap,avcodec_decode_video2 \
4766 -Wl,--wrap,avcodec_decode_subtitle2 \
4767 -Wl,--wrap,avcodec_encode_audio2 \
4768 -Wl,--wrap,avcodec_encode_video2 \
4769 -Wl,--wrap,avcodec_encode_subtitle \
4770 -Wl,--wrap,avresample_convert ||
4771 disable neon_clobber_test
4773 enabled xmm_clobber_test &&
4774 check_ldflags -Wl,--wrap,avcodec_open2 \
4775 -Wl,--wrap,avcodec_decode_audio4 \
4776 -Wl,--wrap,avcodec_decode_video2 \
4777 -Wl,--wrap,avcodec_decode_subtitle2 \
4778 -Wl,--wrap,avcodec_encode_audio2 \
4779 -Wl,--wrap,avcodec_encode_video2 \
4780 -Wl,--wrap,avcodec_encode_subtitle \
4781 -Wl,--wrap,avresample_convert \
4782 -Wl,--wrap,sws_scale ||
4783 disable xmm_clobber_test
4785 echo "X { local: *; };" > $TMPV
4786 if test_ldflags -Wl,--version-script,$TMPV; then
4787 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4788 elif test_ldflags -Wl,-M,$TMPV; then
4789 append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
4792 check_cc <<EOF && enable symver_asm_label
4793 void ff_foo(void) __asm__ ("av_foo@VERSION");
4794 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4796 check_cc <<EOF && enable symver_gnu_asm
4797 __asm__(".symver ff_foo,av_foo@VERSION");
4798 void ff_foo(void) {}
4801 if [ -z "$optflags" ]; then
4802 if enabled small; then
4803 optflags=$cflags_size
4804 elif enabled optimizations; then
4805 optflags=$cflags_speed
4807 optflags=$cflags_noopt
4813 enabled lto && check_ldflags "$@"
4817 if enabled lto; then
4818 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4820 check_ldflags -flto $cpuflags
4823 check_optflags $optflags
4824 check_optflags -fno-math-errno
4825 check_optflags -fno-signed-zeros
4827 if enabled icc; then
4828 # Just warnings, no remarks
4830 # -wd: Disable following warnings
4831 # 144, 167, 556: -Wno-pointer-sign
4832 # 1292: attribute "foo" ignored
4833 # 1419: external declaration in primary source file
4834 # 10006: ignoring unknown option -fno-signed-zeros
4835 # 10148: ignoring unknown option -Wno-parentheses
4836 # 10156: ignoring option '-W'; no argument required
4837 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4838 # 11030: Warning unknown option --as-needed
4839 # 10156: ignoring option '-export'; no argument required
4840 check_ldflags -wd10156,11030
4841 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4842 enable ebp_available
4843 if enabled x86_32; then
4844 icc_version=$($cc -dumpversion)
4845 test ${icc_version%%.*} -ge 11 &&
4846 check_cflags -falign-stack=maintain-16-byte ||
4847 disable aligned_stack
4849 elif enabled ccc; then
4850 # disable some annoying warnings
4851 add_cflags -msg_disable bitnotint
4852 add_cflags -msg_disable mixfuncvoid
4853 add_cflags -msg_disable nonstandcast
4854 add_cflags -msg_disable unsupieee
4855 elif enabled gcc; then
4856 check_optflags -fno-tree-vectorize
4857 check_cflags -Werror=implicit-function-declaration
4858 check_cflags -Werror=missing-prototypes
4859 check_cflags -Werror=return-type
4860 check_cflags -Werror=declaration-after-statement
4861 check_cflags -Werror=vla
4862 check_cflags -Werror=format-security
4863 check_cflags -fdiagnostics-color=auto
4864 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4865 elif enabled llvm_gcc; then
4866 check_cflags -mllvm -stack-alignment=16
4867 elif enabled clang; then
4868 check_cflags -mllvm -stack-alignment=16
4869 check_cflags -Qunused-arguments
4870 check_cflags -Werror=implicit-function-declaration
4871 check_cflags -Werror=missing-prototypes
4872 check_cflags -Werror=return-type
4873 elif enabled cparser; then
4874 add_cflags -Wno-missing-variable-declarations
4875 add_cflags -Wno-empty-statement
4876 elif enabled armcc; then
4877 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4878 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4879 # 2523: use of inline assembly is deprecated
4880 add_cflags -W${armcc_opt},--diag_suppress=2523
4881 add_cflags -W${armcc_opt},--diag_suppress=1207
4882 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4883 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4884 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4885 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4886 elif enabled tms470; then
4887 add_cflags -pds=824 -pds=837
4889 elif enabled pathscale; then
4890 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4891 elif enabled_any msvc icl; then
4892 enabled x86_32 && disable aligned_stack
4893 enabled_all x86_32 debug && add_cflags -Oy-
4894 enabled debug && add_ldflags -debug
4895 enable pragma_deprecated
4896 if enabled icl; then
4897 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4898 # (correctly) on icl 13.x.
4899 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4900 add_cflags -Qansi-alias
4901 # icl will pass the inline asm tests but inline asm is currently
4902 # not supported (build will fail)
4905 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4906 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4907 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4908 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4909 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4910 # MSVC 2013 and newer can handle it fine.
4911 # If this declspec fails, force including stdlib.h before the restrict redefinition
4912 # happens in config.h.
4913 if [ $_restrict != restrict ]; then
4914 check_cc <<EOF || add_cflags -FIstdlib.h
4915 __declspec($_restrict) void* foo(int);
4918 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4921 for pfx in "" host_; do
4922 varname=${pfx%_}cc_type
4923 eval "type=\$$varname"
4924 if [ $type = "msvc" ]; then
4925 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4926 static inline int foo(int a) { return a; }
4933 add_asflags -Qunused-arguments
4939 check_ldflags -Qunused-arguments
4945 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4948 add_cppflags -Dmain=plan9_main
4952 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4954 check_deps $CONFIG_LIST \
4959 enabled_all dxva2 CoTaskMemFree &&
4960 prepend avconv_libs $($ldflags_filter "-lole32") &&
4963 ! enabled_any memalign posix_memalign aligned_malloc &&
4964 enabled simd_align_16 && enable memalign_hack
4966 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4968 for thread in $THREADS_LIST; do
4969 if enabled $thread; then
4970 test -n "$thread_type" &&
4971 die "ERROR: Only one thread type must be selected." ||
4972 thread_type="$thread"
4976 enabled zlib && add_cppflags -DZLIB_CONST
4978 # conditional library dependencies, in linking order
4979 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
4980 enabled resample_filter && prepend avfilter_deps "avresample"
4981 enabled scale_filter && prepend avfilter_deps "swscale"
4983 enabled opus_decoder && prepend avcodec_deps "avresample"
4987 eval "deps=\$$lib_deps"
4988 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4992 map 'expand_deps $v' $LIBRARY_LIST
4994 echo "install prefix $prefix"
4995 echo "source path $source_path"
4996 echo "C compiler $cc"
4997 echo "C library $libc_type"
4998 if test "$host_cc" != "$cc"; then
4999 echo "host C compiler $host_cc"
5000 echo "host C library $host_libc_type"
5002 echo "ARCH $arch ($cpu)"
5003 if test "$build_suffix" != ""; then
5004 echo "build suffix $build_suffix"
5006 if test "$extra_version" != ""; then
5007 echo "version string suffix $extra_version"
5009 echo "big-endian ${bigendian-no}"
5010 echo "runtime cpu detection ${runtime_cpudetect-no}"
5011 if enabled x86; then
5012 echo "${yasmexe} ${yasm-no}"
5013 echo "MMX enabled ${mmx-no}"
5014 echo "MMXEXT enabled ${mmxext-no}"
5015 echo "3DNow! enabled ${amd3dnow-no}"
5016 echo "3DNow! extended enabled ${amd3dnowext-no}"
5017 echo "SSE enabled ${sse-no}"
5018 echo "SSSE3 enabled ${ssse3-no}"
5019 echo "AVX enabled ${avx-no}"
5020 echo "XOP enabled ${xop-no}"
5021 echo "FMA3 enabled ${fma3-no}"
5022 echo "FMA4 enabled ${fma4-no}"
5023 echo "i686 features enabled ${i686-no}"
5024 echo "CMOV is fast ${fast_cmov-no}"
5025 echo "EBX available ${ebx_available-no}"
5026 echo "EBP available ${ebp_available-no}"
5028 if enabled aarch64; then
5029 echo "NEON enabled ${neon-no}"
5030 echo "VFP enabled ${vfp-no}"
5032 if enabled arm; then
5033 echo "ARMv5TE enabled ${armv5te-no}"
5034 echo "ARMv6 enabled ${armv6-no}"
5035 echo "ARMv6T2 enabled ${armv6t2-no}"
5036 echo "VFP enabled ${vfp-no}"
5037 echo "NEON enabled ${neon-no}"
5039 if enabled ppc; then
5040 echo "AltiVec enabled ${altivec-no}"
5041 echo "VSX enabled ${vsx-no}"
5042 echo "POWER8 enabled ${power8-no}"
5043 echo "PPC 4xx optimizations ${ppc4xx-no}"
5044 echo "dcbzl available ${dcbzl-no}"
5046 echo "debug symbols ${debug-no}"
5047 echo "optimize for size ${small-no}"
5048 echo "optimizations ${optimizations-no}"
5049 echo "static ${static-no}"
5050 echo "shared ${shared-no}"
5051 echo "new filter support ${avfilter-no}"
5052 echo "network support ${network-no}"
5053 echo "threading support ${thread_type-no}"
5054 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5055 echo "SDL support ${sdl-no}"
5056 test -n "$random_seed" &&
5057 echo "random seed ${random_seed}"
5060 echo "External libraries:"
5061 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5065 print_enabled '' $LIBRARY_LIST | print_3_columns
5068 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5069 echo "Enabled ${type}s:"
5070 eval list=\$$(toupper $type)_LIST
5071 print_enabled '_*' $list | print_3_columns
5075 license="LGPL version 2.1 or later"
5076 if enabled nonfree; then
5077 license="nonfree and unredistributable"
5078 elif enabled gplv3; then
5079 license="GPL version 3 or later"
5080 elif enabled lgplv3; then
5081 license="LGPL version 3 or later"
5082 elif enabled gpl; then
5083 license="GPL version 2 or later"
5086 echo "License: $license"
5088 echo "Creating config.mak and config.h..."
5090 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5092 config_files="$TMPH config.mak"
5094 cat > config.mak <<EOF
5095 # Automatically generated by configure - do not modify!
5096 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5098 LIBDIR=\$(DESTDIR)$libdir
5099 SHLIBDIR=\$(DESTDIR)$shlibdir
5100 INCDIR=\$(DESTDIR)$incdir
5101 BINDIR=\$(DESTDIR)$bindir
5102 DATADIR=\$(DESTDIR)$datadir
5103 DOCDIR=\$(DESTDIR)$docdir
5104 MANDIR=\$(DESTDIR)$mandir
5105 SRC_PATH=$source_path
5108 INTRINSICS=$intrinsics
5115 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5117 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5128 OBJCFLAGS=$OBJCFLAGS
5143 LDEXEFLAGS=$LDEXEFLAGS
5144 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5145 STRIPFLAGS=$STRIPFLAGS
5146 YASMFLAGS=$YASMFLAGS
5147 BUILDSUF=$build_suffix
5155 EXTRA_VERSION=$extra_version
5157 CCDEP_FLAGS=$CCDEP_FLAGS
5159 ASDEP_FLAGS=$ASDEP_FLAGS
5160 CC_DEPFLAGS=$CC_DEPFLAGS
5161 AS_DEPFLAGS=$AS_DEPFLAGS
5164 HOSTCFLAGS=$host_cflags
5165 HOSTCPPFLAGS=$host_cppflags
5166 HOSTEXESUF=$HOSTEXESUF
5167 HOSTLDFLAGS=$host_ldflags
5170 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5171 HOSTCCDEP=$HOSTCCDEP
5172 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5173 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5177 TARGET_EXEC=$target_exec $target_exec_args
5178 TARGET_PATH=$target_path
5179 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5180 CFLAGS-avplay=$sdl_cflags
5181 ZLIB=$($ldflags_filter -lz)
5182 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5183 EXTRALIBS=$extralibs
5184 COMPAT_OBJS=$compat_objs
5187 LIBTARGET=${LIBTARGET}
5188 SLIBNAME=${SLIBNAME}
5189 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5190 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5191 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5192 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5193 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5194 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5195 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5196 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5197 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5202 name=$(toupper $lcname)
5203 file=$source_path/$lcname/version.h
5204 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5205 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5206 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5207 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5208 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5211 map 'get_version $v' $LIBRARY_LIST
5213 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5215 print_program_libs(){
5216 eval "program_libs=\$${1}_libs"
5217 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5220 map 'print_program_libs $v' $PROGRAM_LIST
5223 /* Automatically generated by configure - do not modify! */
5224 #ifndef LIBAV_CONFIG_H
5225 #define LIBAV_CONFIG_H
5226 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5227 #define LIBAV_LICENSE "$(c_escape $license)"
5228 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5229 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5230 #define restrict $_restrict
5231 #define EXTERN_PREFIX "${extern_prefix}"
5232 #define EXTERN_ASM ${extern_prefix}
5233 #define SLIBSUF "$SLIBSUF"
5236 test -n "$malloc_prefix" &&
5237 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5239 if enabled yasm; then
5240 append config_files $TMPASM
5244 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5246 print_config ARCH_ "$config_files" $ARCH_LIST
5247 print_config HAVE_ "$config_files" $HAVE_LIST
5248 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5252 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5254 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5255 cp_if_changed $TMPH config.h
5258 enabled yasm && cp_if_changed $TMPASM config.asm
5261 /* Generated by ffconf */
5262 #ifndef AVUTIL_AVCONFIG_H
5263 #define AVUTIL_AVCONFIG_H
5266 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5268 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5270 cp_if_changed $TMPH libavutil/avconfig.h
5272 test -n "$WARNINGS" && printf "\n$WARNINGS"
5274 # build pkg-config files
5277 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5280 pkgconfig_generate(){
5282 shortname=${name#lib}${build_suffix}
5286 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5287 requires=${requires%, }
5288 enabled ${name#lib} || return 0
5290 cat <<EOF > $name/$name.pc
5292 exec_prefix=\${prefix}
5297 Description: $comment
5299 Requires: $(enabled shared || echo $requires)
5300 Requires.private: $(enabled shared && echo $requires)
5302 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5303 Libs.private: $(enabled shared && echo $libs)
5304 Cflags: -I\${includedir}
5306 cat <<EOF > $name/$name-uninstalled.pc
5309 libdir=\${pcfiledir}
5310 includedir=${source_path}
5313 Description: $comment
5317 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5318 Cflags: -I\${includedir}
5322 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5323 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5324 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5325 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5326 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5327 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5328 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"