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-frei0r enable frei0r video filtering
183 --enable-gnutls enable gnutls [no]
184 --enable-libbs2b enable bs2b DSP library [no]
185 --enable-libcdio enable audio CD grabbing with libcdio
186 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
188 --enable-libdcadec enable DCA decoding via libdcadec [no]
189 --enable-libfaac enable AAC encoding via libfaac [no]
190 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
191 --enable-libfreetype enable libfreetype [no]
192 --enable-libgsm enable GSM de/encoding via libgsm [no]
193 --enable-libilbc enable iLBC de/encoding via libilbc [no]
194 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
195 --enable-libmfx enable HW acceleration through libmfx
196 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
197 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
198 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
199 --enable-libopencv enable video filtering via libopencv [no]
200 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
201 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
202 --enable-libopus enable Opus de/encoding via libopus [no]
203 --enable-libpulse enable Pulseaudio input via libpulse [no]
204 --enable-librtmp enable RTMP[E] support via librtmp [no]
205 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
206 --enable-libsnappy enable Snappy compression [no]
207 --enable-libspeex enable Speex de/encoding via libspeex [no]
208 --enable-libtheora enable Theora encoding via libtheora [no]
209 --enable-libtwolame enable MP2 encoding via libtwolame [no]
210 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
211 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
212 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
213 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
214 --enable-libwavpack enable wavpack encoding via libwavpack [no]
215 --enable-libwebp enable WebP encoding via libwebp [no]
216 --enable-libx264 enable H.264 encoding via x264 [no]
217 --enable-libx265 enable HEVC encoding via x265 [no]
218 --enable-libxavs enable AVS encoding via xavs [no]
219 --enable-libxcb enable X11 grabbing using XCB [no]
220 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
221 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
222 --enable-libxvid enable Xvid encoding via xvidcore,
223 native MPEG-4/Xvid encoder exists [no]
224 --enable-mmal enable decoding via MMAL [no]
225 --enable-nvenc enable encoding via NVENC [no]
226 --enable-openssl enable openssl [no]
227 --enable-x11grab enable X11 grabbing (legacy) [no]
228 --enable-zlib enable zlib [autodetect]
231 --arch=ARCH select architecture [$arch]
232 --cpu=CPU select the minimum required CPU (affects
233 instruction selection, may crash on older CPUs)
234 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
235 --enable-cross-compile assume a cross-compiler is used
236 --sysroot=PATH root of cross-build tree
237 --sysinclude=PATH location of cross-build system headers
238 --target-os=OS compiler targets OS [$target_os]
239 --target-exec=CMD command to run executables on target
240 --target-path=DIR path to view of build directory on target
241 --target-samples=DIR path to samples directory on target
242 --toolchain=NAME set tool defaults according to NAME
244 --ar=AR use archive tool AR [$ar_default]
245 --as=AS use assembler AS [$as_default]
246 --cc=CC use C compiler CC [$cc_default]
247 --objcc=OCC use ObjC compiler OCC [$cc_default]
248 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
249 --ld=LD use linker LD
250 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
251 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
252 --host-cc=HOSTCC use host C compiler HOSTCC
253 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
254 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
255 --host-ld=HOSTLD use host linker HOSTLD
256 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
257 --host-libs=HLIBS use libs HLIBS when linking for host
258 --host-os=OS compiler host OS [$target_os]
259 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
260 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
261 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
262 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
263 --extra-libs=ELIBS add ELIBS [$ELIBS]
264 --extra-version=STRING version string suffix []
265 --optflags=OPTFLAGS override optimization-related compiler flags
266 --build-suffix=SUFFIX library name suffix []
267 --enable-pic build position-independent code
268 --enable-thumb compile for Thumb instruction set
269 --enable-lto use link-time optimization
270 --env="ENV=override" override the environment variables
272 Advanced options (experts only):
273 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
274 --custom-allocator=NAME use a supported custom allocator
275 --disable-symver disable symbol versioning
276 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
277 --disable-safe-bitstream-reader
278 disable buffer boundary checking in bitreaders
279 (faster, but may crash)
280 --enable-memalign-hack emulate memalign, interferes with memory debuggers
281 --enable-sram allow use of on-chip SRAM
283 Optimization options (experts only):
284 --disable-asm disable all assembly optimizations
285 --disable-altivec disable AltiVec optimizations
286 --disable-vsx disable VSX optimizations
287 --disable-power8 disable POWER8 optimizations
288 --disable-amd3dnow disable 3DNow! optimizations
289 --disable-amd3dnowext disable 3DNow! extended optimizations
290 --disable-mmx disable MMX optimizations
291 --disable-mmxext disable MMXEXT optimizations
292 --disable-sse disable SSE optimizations
293 --disable-sse2 disable SSE2 optimizations
294 --disable-sse3 disable SSE3 optimizations
295 --disable-ssse3 disable SSSE3 optimizations
296 --disable-sse4 disable SSE4 optimizations
297 --disable-sse42 disable SSE4.2 optimizations
298 --disable-avx disable AVX optimizations
299 --disable-xop disable XOP optimizations
300 --disable-fma3 disable FMA3 optimizations
301 --disable-fma4 disable FMA4 optimizations
302 --disable-avx2 disable AVX2 optimizations
303 --disable-armv5te disable armv5te optimizations
304 --disable-armv6 disable armv6 optimizations
305 --disable-armv6t2 disable armv6t2 optimizations
306 --disable-vfp disable VFP optimizations
307 --disable-neon disable NEON optimizations
308 --disable-inline-asm disable use of inline assembly
309 --disable-yasm disable use of nasm/yasm assembly
311 Developer options (useful when working on Libav itself):
312 --disable-debug disable debugging symbols
313 --enable-debug=LEVEL set the debug level [$debuglevel]
314 --disable-optimizations disable compiler optimizations
315 --enable-extra-warnings enable more compiler warnings
316 --samples=PATH location of test samples for FATE, if not set use
317 \$LIBAV_SAMPLES at make invocation time.
318 --enable-neon-clobber-test check NEON registers for clobbering (should be
319 used only for debugging purposes)
320 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
321 should be used only for debugging purposes)
322 --enable-random randomly enable/disable components
324 --enable-random=LIST randomly enable/disable specific components or
325 --disable-random=LIST component groups. LIST is a comma-separated list
326 of NAME[:PROB] entries where NAME is a component
327 (group) and PROB the probability associated with
329 --random-seed=VALUE seed value for --enable/disable-random
330 --disable-valgrind-backtrace do not print a backtrace under Valgrind
331 (only applies to --disable-optimizations builds)
333 NOTE: Object files are built at the place where configure is launched.
341 echo "$@" >> $logfile
348 printf '%5s %s\n' "${i}" "${line}"
350 done < $1 >> $logfile
361 WARNINGS="${WARNINGS}WARNING: $*\n"
368 If you think configure made a mistake, make sure you are using the latest
369 version from Git. If the latest version fails, report the problem to the
370 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
372 if disabled logging; then
374 Rerun configure with logging enabled (do not use --disable-logging), and
375 include the log this produces with your report.
379 Include the log file "$logfile" produced by configure as this will help
386 # Avoid locale weirdness, besides we really just want to translate ASCII.
388 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
392 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
396 echo "$*" | sed 's/["\\]/\\\0/g'
400 v=$(echo "$1" | sed "s/'/'\\\\''/g")
401 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
406 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
413 eval "case $v in $pat) echo $v ;; esac"
421 eval "case $v in $pat) ;; *) echo $v ;; esac"
428 for v; do eval $m; done
434 for v; do echo ${v}${suffix}; done
449 eval : \${$var:=$value}
454 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
460 eval $(sanitize_var_name "$var")='$*'
464 eval echo \$$(sanitize_var_name "$1")
469 eval level=\${${pvar}_level:=0}
470 eval ${pvar}_${level}="\$$pvar"
471 eval ${pvar}_level=$(($level+1))
477 eval level=\${${pvar}_level:-0}
478 test $level = 0 && continue
479 eval level=$(($level-1))
480 eval $pvar="\${${pvar}_${level}}"
481 eval ${pvar}_level=$level
482 eval unset ${pvar}_${level}
504 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
510 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
516 enabled $var && continue
517 eval sel="\$${var}_select"
518 eval sgs="\$${var}_suggest"
522 enable_deep_weak $sgs
534 disabled $var && continue
543 test "${1#!}" = "$1" && op== || op=!=
544 eval test "x\$${1#!}" $op "xyes"
548 test "${1#!}" = "$1" && op== || op=!=
549 eval test "x\$${1#!}" $op "xno"
554 enabled $opt || return 1
560 disabled $opt || return 1
566 enabled $opt && return 0
572 disabled $opt && return 0
579 eval : \${$opt:=\$${opt}_default}
587 [ $var = $value ] && return 0
595 enabled ${cfg}_checking && die "Circular dependency for $cfg."
596 disabled ${cfg}_checking && continue
597 enable ${cfg}_checking
600 eval dep_all="\$${cfg}_deps"
601 eval dep_any="\$${cfg}_deps_any"
602 eval dep_sel="\$${cfg}_select"
603 eval dep_sgs="\$${cfg}_suggest"
604 eval dep_ifa="\$${cfg}_if"
605 eval dep_ifn="\$${cfg}_if_any"
607 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
608 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
609 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
611 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
612 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
613 enabled_all $dep_all || disable $cfg
614 enabled_any $dep_any || disable $cfg
615 disabled_any $dep_sel && disable $cfg
617 if enabled $cfg; then
619 enable_deep_weak $dep_sgs
622 disable ${cfg}_checking
631 for cfg in $allopts; do
632 enabled $cfg || continue
633 eval dep_extralibs="\$${cfg}_extralibs"
634 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
642 map 'eval echo "$v \${$v:-no}"' "$@" |
643 awk "BEGIN { split(\"$files\", files) }
645 c = \"$pfx\" toupper(\$1);
651 if (file ~ /\\.h\$/) {
652 printf(\"#define %s %d\\n\", c, v) >>file;
653 } else if (file ~ /\\.asm\$/) {
654 printf(\"%%define %s %d\\n\", c, v) >>file;
655 } else if (file ~ /\\.mak\$/) {
656 n = -v ? \"\" : \"!\";
657 printf(\"%s%s=yes\\n\", n, c) >>file;
667 enabled $v && printf "%s\n" ${v%$suf};
674 eval "$var=\"\$$var $*\""
680 eval "$var=\"$* \$$var\""
686 for tok in $(eval echo \$$var); do
687 uniq_list="$(filter_out $tok $uniq_list) $tok"
689 eval "$var=\"${uniq_list}\""
697 append CFLAGS $($cflags_filter "$@")
701 append ASFLAGS $($asflags_filter "$@")
705 append OBJCFLAGS $($objcflags_filter "$@")
709 append LDFLAGS $($ldflags_filter "$@")
713 append LDEXEFLAGS $($ldflags_filter "$@")
717 append STRIPFLAGS "$@"
721 prepend extralibs $($ldflags_filter "$@")
725 append host_cppflags "$@"
729 append host_cflags $($host_cflags_filter "$@")
733 append host_ldflags $($host_ldflags_filter "$@")
737 append compat_objs $1
739 map 'add_cppflags -D$v' "$@"
744 "$@" >> $logfile 2>&1
748 eval printf '%s\\n' $CC_O
752 eval printf '%s\\n' $CC_E
759 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
766 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
773 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
777 eval printf '%s\\n' $AS_O
784 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
788 log check_inline_asm "$@"
793 check_cc "$@" <<EOF && enable $name
794 void foo(void){ __asm__ volatile($code); }
800 check_inline_asm ${1}_inline "\"$2\""
801 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
809 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
813 eval printf '%s\\n' $LD_O
818 flags=$(filter_out '-l*' "$@")
819 libs=$(filter '-l*' "$@")
820 check_cc $($cflags_filter $flags) || return
821 flags=$($ldflags_filter $flags)
822 libs=$($ldflags_filter $libs)
823 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
828 test "${hdr%.h}" = "${hdr}" &&
829 echo "#include $hdr" ||
830 echo "#include <$hdr>"
840 for hdr in $headers; do
843 echo "int main(void) { $code; return 0; }"
844 } | check_$check "$@"
848 log check_cppflags "$@"
849 check_cc "$@" <<EOF && append CPPFLAGS "$@"
856 set -- $($cflags_filter "$@")
863 log check_cflags "$@"
864 test_cflags "$@" && add_cflags "$@"
869 set -- $($cflags_filter "$@")
870 check_objcc "$@" <<EOF
876 log check_cflags "$@"
877 test_objcflags "$@" && add_objcflags "$@"
881 log test_ldflags "$@"
883 int main(void){ return 0; }
888 log check_ldflags "$@"
889 test_ldflags "$@" && add_ldflags "$@"
893 log test_stripflags "$@"
894 # call check_cc to get a fresh TMPO
896 int main(void) { return 0; }
898 check_cmd $strip $STRIPFLAGS "$@" $TMPO
902 log check_stripflags "$@"
903 test_stripflags "$@" && add_stripflags "$@"
907 log check_header "$@"
911 check_cpp "$@" <<EOF && enable_safe $header
922 check_ld "$@" <<EOF && enable $func
924 int main(void){ $func(); }
929 log check_mathfunc "$@"
933 test $narg = 2 && args="f, g" || args="f"
935 check_ld "$@" <<EOF && enable $func
937 float foo(float f, float g) { return $func($args); }
938 int main(void){ return 0; }
942 check_func_headers(){
943 log check_func_headers "$@"
948 for hdr in $headers; do
951 for func in $funcs; do
952 echo "long check_$func(void) { return (long) $func; }"
954 echo "int main(void) { return 0; }"
955 } | check_ld "$@" && enable $funcs && enable_safe $headers
958 check_cpp_condition(){
959 log check_cpp_condition "$@"
966 #error "unsatisfied condition: $condition"
976 check_header $header && check_func $func "$@" && add_extralibs "$@"
984 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
988 log check_pkg_config "$@"
993 check_cmd $pkg_config --exists --print-errors $pkg || return
994 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
995 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
996 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
997 set_safe "${pkg}_cflags" $pkg_cflags &&
998 set_safe "${pkg}_libs" $pkg_libs
1002 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1008 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1009 # are safe but may not be available everywhere. Thus we use
1010 # raise(SIGTERM) instead. The check is run in a subshell so we
1011 # can redirect the "Terminated" message from the shell. SIGBUS
1012 # is not defined by standard C so it is used conditionally.
1014 (check_exec "$@") >> $logfile 2>&1 <<EOF
1016 static void sighandler(int sig){
1022 int (*func_ptr)(void) = foo;
1024 signal(SIGILL, sighandler);
1025 signal(SIGFPE, sighandler);
1026 signal(SIGSEGV, sighandler);
1028 signal(SIGBUS, sighandler);
1040 disable_safe "$type"
1041 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1045 log check_struct "$@"
1050 disable_safe "${struct}_${member}"
1051 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1052 enable_safe "${struct}_${member}"
1056 log check_builtin "$@"
1062 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1065 check_compile_assert(){
1066 log check_compile_assert "$@"
1072 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1080 check_lib $header $func "$@" || die "ERROR: $name not found"
1088 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1091 require_pkg_config(){
1093 check_pkg_config "$@" || die "ERROR: $pkg not found"
1094 add_cflags $(get_safe "${pkg}_cflags")
1095 add_extralibs $(get_safe "${pkg}_libs")
1099 eval printf '%s\\n' $HOSTCC_E
1103 eval printf '%s\\n' $HOSTCC_O
1107 log check_host_cc "$@"
1110 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1114 log check_host_cpp "$@"
1117 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1120 check_host_cppflags(){
1121 log check_host_cppflags "$@"
1122 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1127 check_host_cflags(){
1128 log check_host_cflags "$@"
1129 set -- $($host_cflags_filter "$@")
1130 check_host_cc "$@" <<EOF && append host_cflags "$@"
1135 check_host_cpp_condition(){
1136 log check_host_cpp_condition "$@"
1140 check_host_cpp "$@" <<EOF
1143 #error "unsatisfied condition: $condition"
1151 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1155 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1156 mkdir -p "$(dirname $2)"
1160 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1161 # system-dependent things.
1163 AVCODEC_COMPONENTS="
1171 AVDEVICE_COMPONENTS="
1175 AVFILTER_COMPONENTS="
1178 AVFORMAT_COMPONENTS="
1184 AVRESAMPLE_COMPONENTS=""
1185 AVUTIL_COMPONENTS=""
1189 $AVDEVICE_COMPONENTS
1190 $AVFILTER_COMPONENTS
1191 $AVFORMAT_COMPONENTS
1192 $AVRESAMPLE_COMPONENTS
1198 filter_audio_example
1202 transcode_aac_example
1205 EXTERNAL_LIBRARY_LIST="
1260 safe_bitstream_reader
1314 $EXTERNAL_LIBRARY_LIST
1379 ARCH_EXT_LIST_X86_SIMD="
1407 $ARCH_EXT_LIST_X86_SIMD
1412 ARCH_EXT_LIST_MIPS="
1446 sync_val_compare_and_swap
1460 AVFoundation_AVFoundation_h
1465 cdio_paranoia_paranoia_h
1466 dev_bktr_ioctl_bt848_h
1467 dev_bktr_ioctl_meteor_h
1469 dev_video_bktr_ioctl_bt848_h
1470 dev_video_meteor_ioctl_meteor_h
1478 machine_ioctl_bt848_h
1479 machine_ioctl_meteor_h
1543 GetProcessAffinityMask
1544 GetProcessMemoryInfo
1547 GetSystemTimeAsFileTime
1552 jack_port_get_latency_range
1564 SetConsoleTextAttribute
1575 TOOLCHAIN_FEATURES="
1596 CONDITION_VARIABLE_Ptr
1599 struct_group_source_req
1600 struct_ip_mreq_source
1603 struct_rusage_ru_maxrss
1605 struct_sockaddr_sa_len
1606 struct_sockaddr_storage
1607 struct_v4l2_frmivalenum_discrete
1612 $(add_suffix _external $ARCH_EXT_LIST)
1613 $(add_suffix _inline $ARCH_EXT_LIST)
1640 # options emitted with CONFIG_ prefix but not available on the command line
1781 # code dependency declarations
1783 # architecture extensions
1788 armv8_deps="aarch64"
1789 neon_deps_any="aarch64 arm"
1790 intrinsics_neon_deps="neon"
1791 vfp_deps_any="aarch64 arm"
1794 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1802 x86_64_select="i686"
1803 x86_64_suggest="fast_cmov"
1806 amd3dnowext_deps="amd3dnow"
1822 mmx_external_deps="yasm"
1823 mmx_inline_deps="inline_asm"
1824 mmx_suggest="mmx_external mmx_inline"
1826 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1827 eval dep=\$${ext}_deps
1828 eval ${ext}_external_deps='"${dep}_external"'
1829 eval ${ext}_inline_deps='"${dep}_inline"'
1830 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1833 aligned_stack_if_any="aarch64 ppc x86"
1834 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1835 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1836 fast_unaligned_if_any="aarch64 ppc x86"
1837 simd_align_16_if_any="altivec neon sse"
1839 # system capabilities
1840 symver_if_any="symver_asm_label symver_gnu_asm"
1841 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1844 atomics_gcc_if="sync_val_compare_and_swap"
1845 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1846 atomics_win32_if="MemoryBarrier"
1847 atomics_native_if_any="$ATOMICS_LIST"
1848 w32threads_deps="atomics_native"
1849 threads_if_any="$THREADS_LIST"
1853 error_resilience_select="me_cmp"
1854 faandct_deps="faan fdctdsp"
1855 faanidct_deps="faan idctdsp"
1856 intrax8_select="error_resilience"
1859 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1860 mpeg_er_select="error_resilience"
1861 mpegaudio_select="mpegaudiodsp"
1862 mpegaudiodsp_select="dct"
1863 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1864 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1865 nvenc_deps_any="dlopen LoadLibrary"
1866 nvenc_extralibs='$ldl'
1870 # decoders / encoders
1871 aac_decoder_select="imdct15 mdct sinewin"
1872 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1873 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1874 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1875 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1876 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1877 adpcm_g722_decoder_select="g722dsp"
1878 adpcm_g722_encoder_select="g722dsp"
1879 aic_decoder_select="golomb idctdsp"
1880 alac_encoder_select="lpc"
1881 als_decoder_select="bswapdsp"
1882 amrnb_decoder_select="lsp"
1883 amrwb_decoder_select="lsp"
1884 amv_decoder_select="sp5x_decoder"
1885 ape_decoder_select="bswapdsp"
1886 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1887 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1888 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1889 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1890 atrac1_decoder_select="mdct sinewin"
1891 atrac3_decoder_select="mdct"
1892 atrac3p_decoder_select="mdct sinewin"
1893 bink_decoder_select="blockdsp hpeldsp"
1894 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1895 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1896 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1897 cllc_decoder_select="bswapdsp"
1898 comfortnoise_encoder_select="lpc"
1899 cook_decoder_select="audiodsp mdct sinewin"
1900 cscd_decoder_select="lzo"
1901 cscd_decoder_suggest="zlib"
1902 dca_decoder_select="fmtconvert mdct"
1903 dds_decoder_select="texturedsp"
1904 dnxhd_decoder_select="blockdsp idctdsp"
1905 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1906 dvvideo_decoder_select="dvprofile idctdsp"
1907 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1908 dxa_decoder_deps="zlib"
1909 dxv_decoder_select="lzf texturedsp"
1910 eac3_decoder_select="ac3_decoder"
1911 eac3_encoder_select="ac3_encoder"
1912 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1913 eatgq_decoder_select="aandcttables idctdsp"
1914 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1915 exr_decoder_deps="zlib"
1916 ffv1_decoder_select="golomb rangecoder"
1917 ffv1_encoder_select="rangecoder"
1918 ffvhuff_decoder_select="huffyuv_decoder"
1919 ffvhuff_encoder_select="huffyuv_encoder"
1920 fic_decoder_select="golomb"
1921 flac_decoder_select="flacdsp golomb"
1922 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1923 flashsv_decoder_deps="zlib"
1924 flashsv_encoder_deps="zlib"
1925 flashsv2_decoder_deps="zlib"
1926 flv_decoder_select="h263_decoder"
1927 flv_encoder_select="h263_encoder"
1928 fourxm_decoder_select="blockdsp bswapdsp"
1929 fraps_decoder_select="bswapdsp huffman"
1930 g2m_decoder_deps="zlib"
1931 g2m_decoder_select="blockdsp idctdsp jpegtables"
1932 h261_decoder_select="mpeg_er mpegvideo"
1933 h261_encoder_select="aandcttables mpegvideoenc"
1934 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1935 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1936 h263i_decoder_select="h263_decoder"
1937 h263p_encoder_select="h263_encoder"
1938 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1939 h264_decoder_suggest="error_resilience"
1940 h264_nvenc_encoder_deps="nvenc"
1941 h264_qsv_decoder_deps="libmfx"
1942 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1943 h264_qsv_encoder_deps="libmfx"
1944 h264_qsv_encoder_select="qsvenc"
1945 hap_decoder_select="snappy texturedsp"
1946 hap_encoder_deps="libsnappy"
1947 hap_encoder_select="texturedspenc"
1948 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1949 hevc_nvenc_encoder_deps="nvenc"
1950 hevc_qsv_encoder_deps="libmfx"
1951 hevc_qsv_decoder_deps="libmfx"
1952 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1953 hevc_qsv_encoder_select="qsvenc"
1954 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1955 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1956 iac_decoder_select="imc_decoder"
1957 imc_decoder_select="bswapdsp fft mdct sinewin"
1958 indeo3_decoder_select="hpeldsp"
1959 indeo4_decoder_select="ividsp"
1960 indeo5_decoder_select="ividsp"
1961 interplay_video_decoder_select="hpeldsp"
1962 jpegls_decoder_select="golomb mjpeg_decoder"
1963 jpegls_encoder_select="golomb"
1964 jv_decoder_select="blockdsp"
1965 lagarith_decoder_select="huffyuvdsp"
1966 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1967 loco_decoder_select="golomb"
1968 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1969 metasound_decoder_select="lsp mdct sinewin"
1970 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1971 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1972 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1973 mjpegb_decoder_select="mjpeg_decoder"
1974 mlp_decoder_select="mlp_parser"
1975 motionpixels_decoder_select="bswapdsp"
1976 mp1_decoder_select="mpegaudio"
1977 mp1float_decoder_select="mpegaudio"
1978 mp2_decoder_select="mpegaudio"
1979 mp2float_decoder_select="mpegaudio"
1980 mp3_decoder_select="mpegaudio"
1981 mp3adu_decoder_select="mpegaudio"
1982 mp3adufloat_decoder_select="mpegaudio"
1983 mp3float_decoder_select="mpegaudio"
1984 mp3on4_decoder_select="mpegaudio"
1985 mp3on4float_decoder_select="mpegaudio"
1986 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1987 mpc8_decoder_select="mpegaudiodsp"
1988 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1989 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1990 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1991 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1992 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1993 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1994 mpeg2_qsv_decoder_deps="libmfx"
1995 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
1996 mpeg2_qsv_encoder_deps="libmfx"
1997 mpeg2_qsv_encoder_select="qsvenc"
1998 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1999 mpeg4_encoder_select="h263_encoder"
2000 msa1_decoder_select="mss34dsp"
2001 msmpeg4v1_decoder_select="h263_decoder"
2002 msmpeg4v2_decoder_select="h263_decoder"
2003 msmpeg4v2_encoder_select="h263_encoder"
2004 msmpeg4v3_decoder_select="h263_decoder"
2005 msmpeg4v3_encoder_select="h263_encoder"
2006 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2007 mts2_decoder_select="mss34dsp"
2008 mxpeg_decoder_select="mjpeg_decoder"
2009 nellymoser_decoder_select="mdct sinewin"
2010 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2011 nuv_decoder_select="idctdsp lzo"
2012 on2avc_decoder_select="mdct"
2013 opus_decoder_deps="avresample"
2014 opus_decoder_select="imdct15"
2015 png_decoder_deps="zlib"
2016 png_encoder_deps="zlib"
2017 png_encoder_select="huffyuvencdsp"
2018 prores_decoder_select="idctdsp"
2019 prores_encoder_select="fdctdsp"
2020 qcelp_decoder_select="lsp"
2021 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2022 ra_144_encoder_select="audio_frame_queue lpc"
2023 ralf_decoder_select="golomb"
2024 rscc_decoder_deps="zlib"
2025 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2026 rv10_encoder_select="h263_encoder"
2027 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2028 rv20_encoder_select="h263_encoder"
2029 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2030 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2031 screenpresso_decoder_deps="zlib"
2032 shorten_decoder_select="golomb"
2033 sipr_decoder_select="lsp"
2034 sp5x_decoder_select="mjpeg_decoder"
2035 svq1_decoder_select="hpeldsp"
2036 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2037 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2038 svq3_decoder_suggest="zlib"
2039 tak_decoder_select="audiodsp"
2040 tdsc_decoder_deps="zlib"
2041 tdsc_decoder_select="mjpeg_decoder"
2042 theora_decoder_select="vp3_decoder"
2043 thp_decoder_select="mjpeg_decoder"
2044 tiff_decoder_suggest="zlib"
2045 tiff_encoder_suggest="zlib"
2046 truehd_decoder_select="mlp_decoder"
2047 truemotion2_decoder_select="bswapdsp"
2048 truespeech_decoder_select="bswapdsp"
2049 tscc_decoder_deps="zlib"
2050 txd_decoder_select="texturedsp"
2051 twinvq_decoder_select="mdct lsp sinewin"
2052 utvideo_decoder_select="bswapdsp"
2053 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2054 vble_decoder_select="huffyuvdsp"
2055 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2056 vc1image_decoder_select="vc1_decoder"
2057 vorbis_decoder_select="mdct"
2058 vorbis_encoder_select="mdct"
2059 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2060 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2061 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2062 vp6a_decoder_select="vp6_decoder"
2063 vp6f_decoder_select="vp6_decoder"
2064 vp7_decoder_select="h264pred videodsp vp8dsp"
2065 vp8_decoder_select="h264pred videodsp vp8dsp"
2066 vp9_decoder_select="videodsp"
2067 webp_decoder_select="vp8_decoder"
2068 wmapro_decoder_select="mdct sinewin wma_freqs"
2069 wmav1_decoder_select="mdct sinewin wma_freqs"
2070 wmav1_encoder_select="mdct sinewin wma_freqs"
2071 wmav2_decoder_select="mdct sinewin wma_freqs"
2072 wmav2_encoder_select="mdct sinewin wma_freqs"
2073 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2074 wmv1_decoder_select="h263_decoder"
2075 wmv1_encoder_select="h263_encoder"
2076 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2077 wmv2_encoder_select="h263_encoder wmv2dsp"
2078 wmv3_decoder_select="vc1_decoder"
2079 wmv3image_decoder_select="wmv3_decoder"
2080 zerocodec_decoder_deps="zlib"
2081 zlib_decoder_deps="zlib"
2082 zlib_encoder_deps="zlib"
2083 zmbv_decoder_deps="zlib"
2084 zmbv_encoder_deps="zlib"
2086 # hardware accelerators
2087 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2088 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2089 vaapi_deps="va_va_h"
2090 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2091 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2092 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2094 h263_vaapi_hwaccel_deps="vaapi"
2095 h263_vaapi_hwaccel_select="h263_decoder"
2096 h264_d3d11va_hwaccel_deps="d3d11va"
2097 h264_d3d11va_hwaccel_select="h264_decoder"
2098 h264_dxva2_hwaccel_deps="dxva2"
2099 h264_dxva2_hwaccel_select="h264_decoder"
2100 h264_mmal_decoder_deps="mmal"
2101 h264_mmal_hwaccel_deps="mmal"
2102 h264_mmal_decoder_select="h264_decoder"
2103 h264_mmal_encoder_deps="mmal"
2104 h264_qsv_hwaccel_deps="libmfx"
2105 h264_vaapi_hwaccel_deps="vaapi"
2106 h264_vaapi_hwaccel_select="h264_decoder"
2107 h264_vda_hwaccel_deps="vda"
2108 h264_vda_hwaccel_select="h264_decoder"
2109 h264_vda_old_hwaccel_deps="vda"
2110 h264_vda_old_hwaccel_select="h264_decoder"
2111 h264_vdpau_hwaccel_deps="vdpau"
2112 h264_vdpau_hwaccel_select="h264_decoder"
2113 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2114 hevc_d3d11va_hwaccel_select="hevc_decoder"
2115 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2116 hevc_dxva2_hwaccel_select="hevc_decoder"
2117 hevc_qsv_hwaccel_deps="libmfx"
2118 mpeg1_vdpau_hwaccel_deps="vdpau"
2119 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2120 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2121 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2122 mpeg2_dxva2_hwaccel_deps="dxva2"
2123 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2124 mpeg2_qsv_hwaccel_deps="libmfx"
2125 mpeg2_vaapi_hwaccel_deps="vaapi"
2126 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2127 mpeg2_vdpau_hwaccel_deps="vdpau"
2128 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2129 mpeg4_vaapi_hwaccel_deps="vaapi"
2130 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2131 mpeg4_vdpau_hwaccel_deps="vdpau"
2132 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2133 vc1_d3d11va_hwaccel_deps="d3d11va"
2134 vc1_d3d11va_hwaccel_select="vc1_decoder"
2135 vc1_dxva2_hwaccel_deps="dxva2"
2136 vc1_dxva2_hwaccel_select="vc1_decoder"
2137 vc1_vaapi_hwaccel_deps="vaapi"
2138 vc1_vaapi_hwaccel_select="vc1_decoder"
2139 vc1_vdpau_hwaccel_deps="vdpau"
2140 vc1_vdpau_hwaccel_select="vc1_decoder"
2141 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2142 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2143 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2144 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2147 h264_parser_select="h264_decoder"
2148 hevc_parser_select="golomb"
2149 mpegvideo_parser_select="mpegvideo"
2150 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2151 vc1_parser_select="mpegvideo startcode vc1_decoder"
2154 mjpeg2jpeg_bsf_select="jpegtables"
2156 # external libraries
2157 libdcadec_decoder_deps="libdcadec"
2158 libfaac_encoder_deps="libfaac"
2159 libfaac_encoder_select="audio_frame_queue"
2160 libfdk_aac_decoder_deps="libfdk_aac"
2161 libfdk_aac_encoder_deps="libfdk_aac"
2162 libfdk_aac_encoder_select="audio_frame_queue"
2163 libgsm_decoder_deps="libgsm"
2164 libgsm_encoder_deps="libgsm"
2165 libgsm_ms_decoder_deps="libgsm"
2166 libgsm_ms_encoder_deps="libgsm"
2167 libilbc_decoder_deps="libilbc"
2168 libilbc_encoder_deps="libilbc"
2169 libkvazaar_encoder_deps="libkvazaar"
2170 libmp3lame_encoder_deps="libmp3lame"
2171 libmp3lame_encoder_select="audio_frame_queue"
2172 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2173 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2174 libopencore_amrnb_encoder_select="audio_frame_queue"
2175 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2176 libopenh264_encoder_deps="libopenh264"
2177 libopenjpeg_decoder_deps="libopenjpeg"
2178 libopenjpeg_encoder_deps="libopenjpeg"
2179 libopus_decoder_deps="libopus"
2180 libopus_encoder_deps="libopus"
2181 libopus_encoder_select="audio_frame_queue"
2182 libschroedinger_decoder_deps="libschroedinger"
2183 libschroedinger_encoder_deps="libschroedinger"
2184 libspeex_decoder_deps="libspeex"
2185 libspeex_encoder_deps="libspeex"
2186 libspeex_encoder_select="audio_frame_queue"
2187 libtheora_encoder_deps="libtheora"
2188 libtwolame_encoder_deps="libtwolame"
2189 libvo_aacenc_encoder_deps="libvo_aacenc"
2190 libvo_aacenc_encoder_select="audio_frame_queue"
2191 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2192 libvorbis_encoder_deps="libvorbis"
2193 libvorbis_encoder_select="audio_frame_queue"
2194 libvpx_vp8_decoder_deps="libvpx"
2195 libvpx_vp8_encoder_deps="libvpx"
2196 libvpx_vp9_decoder_deps="libvpx"
2197 libvpx_vp9_encoder_deps="libvpx"
2198 libwavpack_encoder_deps="libwavpack"
2199 libwebp_encoder_deps="libwebp"
2200 libx262_encoder_deps="libx262"
2201 libx264_encoder_deps="libx264"
2202 libx265_encoder_deps="libx265"
2203 libxavs_encoder_deps="libxavs"
2204 libxvid_encoder_deps="libxvid"
2207 ac3_demuxer_select="ac3_parser"
2208 asf_demuxer_select="riffdec"
2209 asf_muxer_select="riffenc"
2210 asf_stream_muxer_select="asf_muxer"
2211 avi_demuxer_select="riffdec"
2212 avi_muxer_select="riffenc"
2213 avisynth_demuxer_deps="avisynth"
2214 avisynth_demuxer_select="riffdec"
2215 caf_demuxer_select="riffdec"
2216 dash_muxer_select="mp4_muxer"
2217 dirac_demuxer_select="dirac_parser"
2218 dv_demuxer_select="dvprofile"
2219 dv_muxer_select="dvprofile"
2220 dxa_demuxer_select="riffdec"
2221 eac3_demuxer_select="ac3_parser"
2222 f4v_muxer_select="mov_muxer"
2223 flac_demuxer_select="flac_parser"
2224 hds_muxer_select="flv_muxer"
2225 hls_muxer_select="mpegts_muxer"
2226 ipod_muxer_select="mov_muxer"
2227 ismv_muxer_select="mov_muxer"
2228 matroska_audio_muxer_select="matroska_muxer"
2229 matroska_demuxer_select="riffdec"
2230 matroska_demuxer_suggest="bzlib lzo zlib"
2231 matroska_muxer_select="riffenc"
2232 mmf_muxer_select="riffenc"
2233 mov_demuxer_select="riffdec"
2234 mov_demuxer_suggest="zlib"
2235 mov_muxer_select="riffenc rtpenc_chain"
2236 mp3_demuxer_select="mpegaudio_parser"
2237 mp4_muxer_select="mov_muxer"
2238 mpegts_muxer_select="adts_muxer latm_muxer"
2239 mpegtsraw_demuxer_select="mpegts_demuxer"
2240 mxf_d10_muxer_select="mxf_muxer"
2241 nut_muxer_select="riffenc"
2242 nuv_demuxer_select="riffdec"
2243 oga_muxer_select="ogg_muxer"
2244 ogg_demuxer_select="golomb"
2245 opus_muxer_select="ogg_muxer"
2246 psp_muxer_select="mov_muxer"
2247 rtp_demuxer_select="sdp_demuxer"
2248 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2249 rtsp_demuxer_select="http_protocol rtpdec"
2250 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2251 sap_demuxer_select="sdp_demuxer"
2252 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2253 sdp_demuxer_select="rtpdec"
2254 smoothstreaming_muxer_select="ismv_muxer"
2255 spdif_muxer_select="aac_parser"
2256 spx_muxer_select="ogg_muxer"
2257 tak_demuxer_select="tak_parser"
2258 tg2_muxer_select="mov_muxer"
2259 tgp_muxer_select="mov_muxer"
2260 w64_demuxer_select="wav_demuxer"
2261 wav_demuxer_select="riffdec"
2262 wav_muxer_select="riffenc"
2263 webm_muxer_select="riffenc"
2264 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2265 wtv_demuxer_select="riffdec"
2266 xmv_demuxer_select="riffdec"
2267 xwma_demuxer_select="riffdec"
2270 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2271 alsa_outdev_deps="alsa_asoundlib_h"
2272 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2273 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2274 dv1394_indev_deps="dv1394"
2275 dv1394_indev_select="dv_demuxer"
2276 fbdev_indev_deps="linux_fb_h"
2277 jack_indev_deps="jack_jack_h pthreads"
2278 libcdio_indev_deps="libcdio"
2279 libdc1394_indev_deps="libdc1394"
2280 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2281 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2282 pulse_indev_deps="libpulse"
2283 sndio_indev_deps="sndio_h"
2284 sndio_outdev_deps="sndio_h"
2285 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2286 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2287 vfwcap_indev_extralibs="-lavicap32"
2288 x11grab_indev_deps="x11grab"
2289 x11grab_xcb_indev_deps="libxcb"
2292 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2293 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2294 ffrtmpcrypt_protocol_select="tcp_protocol"
2295 ffrtmphttp_protocol_deps="!librtmp_protocol"
2296 ffrtmphttp_protocol_select="http_protocol"
2297 gopher_protocol_select="network"
2298 http_protocol_select="tcp_protocol"
2299 httpproxy_protocol_select="tcp_protocol"
2300 https_protocol_select="tls_protocol"
2301 icecast_protocol_select="http_protocol"
2302 librtmp_protocol_deps="librtmp"
2303 librtmpe_protocol_deps="librtmp"
2304 librtmps_protocol_deps="librtmp"
2305 librtmpt_protocol_deps="librtmp"
2306 librtmpte_protocol_deps="librtmp"
2307 mmsh_protocol_select="http_protocol"
2308 mmst_protocol_select="network"
2309 rtmp_protocol_deps="!librtmp_protocol"
2310 rtmp_protocol_select="tcp_protocol"
2311 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2312 rtmps_protocol_deps="!librtmp_protocol"
2313 rtmps_protocol_select="tls_protocol"
2314 rtmpt_protocol_select="ffrtmphttp_protocol"
2315 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2316 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2317 rtp_protocol_select="udp_protocol"
2318 sctp_protocol_deps="struct_sctp_event_subscribe"
2319 sctp_protocol_select="network"
2320 srtp_protocol_select="rtp_protocol"
2321 tcp_protocol_select="network"
2322 tls_gnutls_protocol_deps="gnutls"
2323 tls_gnutls_protocol_select="tcp_protocol"
2324 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2325 tls_openssl_protocol_select="tcp_protocol"
2326 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2327 udp_protocol_select="network"
2328 unix_protocol_deps="sys_un_h"
2329 unix_protocol_select="network"
2332 blackframe_filter_deps="gpl"
2333 boxblur_filter_deps="gpl"
2334 bs2b_filter_deps="libbs2b"
2335 cropdetect_filter_deps="gpl"
2336 delogo_filter_deps="gpl"
2337 drawtext_filter_deps="libfreetype"
2338 frei0r_filter_deps="frei0r dlopen"
2339 frei0r_filter_extralibs='$ldl'
2340 frei0r_src_filter_deps="frei0r dlopen"
2341 frei0r_src_filter_extralibs='$ldl'
2342 hqdn3d_filter_deps="gpl"
2343 interlace_filter_deps="gpl"
2344 ocv_filter_deps="libopencv"
2345 resample_filter_deps="avresample"
2346 scale_filter_deps="swscale"
2349 avcodec_example_deps="avcodec avutil"
2350 filter_audio_example_deps="avfilter avutil"
2351 metadata_example_deps="avformat avutil"
2352 output_example_deps="avcodec avformat avutil swscale"
2353 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2354 transcode_aac_example_deps="avcodec avformat avresample"
2356 # libraries, in linking order
2357 avcodec_deps="avutil"
2358 avdevice_deps="avformat avcodec avutil"
2359 avfilter_deps="avutil"
2360 avformat_deps="avcodec avutil"
2361 avresample_deps="avutil"
2362 swscale_deps="avutil"
2365 avconv_deps="avcodec avfilter avformat avresample swscale"
2366 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2367 fps_filter null_filter resample_filter scale_filter
2368 setpts_filter trim_filter"
2369 avplay_deps="avcodec avformat avresample swscale sdl"
2370 avplay_libs='$sdl_libs'
2371 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2372 avprobe_deps="avcodec avformat"
2376 texi2html_deps="doc"
2378 # default parameters
2380 logfile="config.log"
2382 # installation paths
2383 prefix_default="/usr/local"
2384 bindir_default='${prefix}/bin'
2385 datadir_default='${prefix}/share/avconv'
2386 docdir_default='${prefix}/share/doc/libav'
2387 incdir_default='${prefix}/include'
2388 libdir_default='${prefix}/lib'
2389 mandir_default='${prefix}/share/man'
2390 shlibdir_default="$libdir_default"
2395 host_cc_default="gcc"
2400 pkg_config_default=pkg-config
2406 arch_default=$(uname -m)
2411 target_os_default=$(tolower $(uname -s))
2412 host_os=$target_os_default
2414 # configurable options
2415 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2420 enable faan faandct faanidct
2421 enable optimizations
2422 enable safe_bitstream_reader
2424 enable swscale_alpha
2425 enable valgrind_backtrace
2427 # By default, enable only those hwaccels that have no external dependencies.
2428 enable d3d11va dxva2 vda vdpau
2431 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2434 FULLNAME='$(NAME)$(BUILDSUF)'
2435 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2438 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2439 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2440 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2441 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2442 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2443 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2466 host_cflags_filter=echo
2467 host_ldflags_filter=echo
2469 target_path='$(CURDIR)'
2471 # since the object filename is not given with the -MM flag, the compiler
2472 # is only able to print the basename, and we must add the path ourselves
2473 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2477 if test -f configure; then
2480 source_path=$(cd $(dirname "$0"); pwd)
2481 echo "$source_path" | grep -q '[[:blank:]]' &&
2482 die "Out of tree builds are impossible with whitespace in source path."
2483 test -e "$source_path/config.h" &&
2484 die "Out of tree builds are impossible with config.h in source dir."
2491 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2497 file=$source_path/$3
2498 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2501 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2502 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2503 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2504 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2505 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2506 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2507 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2508 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2509 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2510 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2511 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2527 for n in $COMPONENT_LIST; do
2528 v=$(toupper ${n%s})_LIST
2530 eval ${n}_if_any="\$$v"
2533 enable $ARCH_EXT_LIST
2536 echo "Unknown option \"$1\"."
2537 echo "See $0 --help for available options."
2542 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2548 echo $* | sed s/$suffix//g | print_3_columns
2560 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2561 echo "prob ${prob:-0.5}"
2569 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2570 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2579 --extra-ldexeflags=*)
2580 add_ldexeflags $optval
2583 add_extralibs $optval
2586 disable $INDEV_LIST $OUTDEV_LIST
2589 debuglevel="$optval"
2592 disable $PROGRAM_LIST
2594 --disable-everything)
2595 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2598 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2599 disable $LIBRARY_LIST $PROGRAM_LIST doc
2601 --enable-random|--disable-random)
2602 action=${opt%%-random}
2603 do_random ${action#--} $COMPONENT_LIST
2605 --enable-random=*|--disable-random=*)
2606 action=${opt%%-random=*}
2607 do_random ${action#--} $optval
2609 --enable-*=*|--disable-*=*)
2610 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2611 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2612 eval list=\$$(toupper $thing)_LIST
2613 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2614 $action $(filter "$name" $list)
2616 --enable-avserver|--disable-avserver*)
2617 warn "avserver has been removed, the ${opt} option is only"\
2618 "provided for compatibility and will be removed in the future"
2620 --enable-?*|--disable-?*)
2621 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2622 if is_in $option $COMPONENT_LIST; then
2623 test $action = disable && action=unset
2624 eval $action \$$(toupper ${option%s})_LIST
2625 elif is_in $option $CMDLINE_SELECT; then
2632 NAME="${opt#--list-}"
2633 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2635 eval show_list $NAME \$$(toupper $NAME)_LIST
2637 --help|-h) show_help
2640 optname="${opt%%=*}"
2641 optname="${optname#--}"
2642 optname=$(echo "$optname" | sed 's/-/_/g')
2643 if is_in $optname $CMDLINE_SET; then
2644 eval $optname='$optval'
2645 elif is_in $optname $CMDLINE_APPEND; then
2646 append $optname "$optval"
2658 disabled logging && logfile=/dev/null
2660 # Disable all the library-specific components if the library itself
2661 # is disabled, see AVCODEC_LIST and following _LIST variables.
2663 disable_components(){
2664 disabled ${1} && disable $(
2665 eval components="\$$(toupper ${1})_COMPONENTS"
2666 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2670 map 'disable_components $v' $LIBRARY_LIST
2672 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2675 case "$toolchain" in
2678 add_cflags -fsanitize=address
2679 add_ldflags -fsanitize=address
2683 add_cflags -fsanitize=thread -pie
2684 add_ldflags -fsanitize=thread -pie
2688 add_cflags -fsanitize=undefined -O1
2689 add_ldflags -fsanitize=undefined
2693 add_cflags -fsanitize=address
2694 add_ldflags -fsanitize=address
2698 add_cflags -fsanitize=thread -pie -fPIC
2699 add_ldflags -fsanitize=thread -pie -fPIC
2703 add_cflags -fsanitize=undefined
2704 add_ldflags -fsanitize=undefined
2707 target_exec_default="valgrind"
2708 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2711 target_exec_default="valgrind"
2712 target_exec_args="--track-origins=yes --leak-check=full"
2715 # Check whether the current MSVC version needs the C99 converter.
2716 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2717 # support enough of C99 to build libav. Default to the new
2718 # behaviour if the regexp was unable to match anything, since this
2719 # successfully parses the version number of existing supported
2720 # versions that require the converter (MSVC 2010 and 2012).
2721 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2722 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2725 cc_default="c99wrap cl"
2727 ld_default="$source_path/compat/windows/mslink"
2728 nm_default="dumpbin -symbols"
2735 target_os_default="win32"
2736 # Use a relative path for TMPDIR. This makes sure all the
2737 # ffconf temp files are written with a relative path, avoiding
2738 # issues with msys/win32 path conversion for MSVC parameters
2739 # such as -Fo<file> or -out:<file>.
2745 nm_default="dumpbin -symbols"
2747 target_os_default="win32"
2751 add_cflags -fprofile-arcs -ftest-coverage
2752 add_ldflags -fprofile-arcs -ftest-coverage
2755 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2756 add_cflags -fno-strict-overflow -fstack-protector-all
2757 add_ldflags -Wl,-z,relro -Wl,-z,now
2760 die "Unknown toolchain $toolchain"
2764 test -n "$cross_prefix" && enable cross_compile
2766 if enabled cross_compile; then
2767 test -n "$arch" && test -n "$target_os" ||
2768 die "Must specify target arch and OS when cross-compiling"
2771 ar_default="${cross_prefix}${ar_default}"
2772 cc_default="${cross_prefix}${cc_default}"
2773 occ_default="${cross_prefix}${occ_default}"
2774 nm_default="${cross_prefix}${nm_default}"
2775 pkg_config_default="${cross_prefix}${pkg_config_default}"
2776 ranlib="${cross_prefix}${ranlib}"
2777 strip="${cross_prefix}${strip}"
2779 sysinclude_default="${sysroot}/usr/include"
2781 set_default arch cc pkg_config sysinclude target_exec target_os
2782 enabled cross_compile || host_cc_default=$cc
2785 if ! $pkg_config --version >/dev/null 2>&1; then
2786 warn "$pkg_config not found, library detection may fail."
2792 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2796 EXESUF=$(exesuf $target_os)
2797 HOSTEXESUF=$(exesuf $host_os)
2799 # set temporary file name
2800 : ${TMPDIR:=$TEMPDIR}
2804 if ! check_cmd mktemp -u XXXXXX; then
2805 # simple replacement for missing mktemp
2806 # NOT SAFE FOR GENERAL USE
2808 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2813 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2814 (set -C; exec > $tmp) 2>/dev/null ||
2815 die "Unable to create temporary file in $TMPDIR."
2816 append TMPFILES $tmp
2820 trap 'rm -f -- $TMPFILES' EXIT
2824 tmpfile TMPE $EXESUF
2835 # make sure we can execute files in $TMPDIR
2836 cat > $TMPSH 2>> $logfile <<EOF
2839 chmod +x $TMPSH >> $logfile 2>&1
2840 if ! $TMPSH >> $logfile 2>&1; then
2842 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2843 variable to another directory and make sure that it is not mounted noexec.
2845 die "Sanity test failed."
2851 # Filter out MSVC cl.exe options from cflags that shouldn't
2852 # be passed to gas-preprocessor
2862 -std=c99) echo -c99 ;;
2863 -mcpu=*) echo -arch ${flag#*=} ;;
2864 -mieee) echo -ieee ;;
2865 -O*|-fast) echo $flag ;;
2866 -fno-math-errno) echo -assume nomath_errno ;;
2868 -Wall) echo -msg_enable level2 ;;
2869 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2870 -Wl,*) echo $flag ;;
2880 -Wno-switch) echo -Wno-switch-enum ;;
2881 -Wno-format-zero-length) ;;
2882 -Wdisabled-optimization) ;;
2883 -Wno-pointer-sign) echo -Wno-other ;;
2889 msvc_common_flags(){
2892 # In addition to specifying certain flags under the compiler
2893 # specific filters, they must be specified here as well or else the
2894 # generic catch all at the bottom will print the original flag.
2898 -fomit-frame-pointer) ;;
2902 -fno-signed-zeros) ;;
2906 -lz) echo zlib.lib ;;
2907 -lavifil32) echo vfw32.lib ;;
2908 -lavicap32) echo vfw32.lib user32.lib ;;
2909 -l*) echo ${flag#-l}.lib ;;
2910 -L*) echo -libpath:${flag#-L} ;;
2917 msvc_common_flags "$@"
2920 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2921 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2922 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2923 -wd4273 -wd4554 -wd4701 ;;
2929 msvc_common_flags "$@"
2932 # Despite what Intel's documentation says -Wall, which is supported
2933 # on Windows, does enable remarks so disable them here.
2934 -Wall) echo $flag -Qdiag-disable:remark ;;
2935 -std=c99) echo -Qstd=c99 ;;
2943 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2944 -fomit-frame-pointer) echo -Mnoframe ;;
2955 case "${flag#*=}" in
2956 native) echo -xtarget=native ;;
2957 v9|niagara) echo -xarch=sparc ;;
2958 ultrasparc) echo -xarch=sparcvis ;;
2959 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2960 i586|pentium) echo -xchip=pentium ;;
2961 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2962 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2963 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
2964 pentium4*) echo -xtarget=pentium4 ;;
2965 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
2966 *-sse3) echo -xarch=sse3 ;;
2967 core2) echo -xarch=ssse3 -xchip=core2 ;;
2968 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
2969 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
2970 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
2971 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
2972 k8|opteron|athlon64|athlon-fx)
2973 echo -xarch=sse2a ;;
2974 athlon*) echo -xarch=pentium_proa ;;
2977 -std=c99) echo -xc99 ;;
2978 -fomit-frame-pointer) echo -xregs=frameptr ;;
2979 -fPIC) echo -KPIC -xcode=pic32 ;;
2980 -W*,*) echo $flag ;;
2981 -f*-*|-W*|-mimpure-text) ;;
2992 case "${flag#*=}" in
2993 armv7-a|cortex-a*) echo -mv=7a8 ;;
2994 armv7-r|cortex-r*) echo -mv=7r4 ;;
2995 armv7-m|cortex-m*) echo -mv=7m3 ;;
2996 armv6*|arm11*) echo -mv=6 ;;
2997 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2999 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3002 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3003 -mfpu=vfp) echo --float_support=vfpv2 ;;
3004 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3005 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3006 -msoft-float) echo --float_support=vfplib ;;
3007 -O[0-3]|-mf=*) echo $flag ;;
3009 -pds=*) echo $flag ;;
3010 -D*|-I*) echo $flag ;;
3011 --gcc|--abi=*) echo $flag ;;
3021 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3022 unset _ld_o _ldflags _ld_lib _ld_path
3023 unset _depflags _DEPCMD _DEPFLAGS
3026 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3028 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3029 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3030 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3033 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3035 gcc_version=$($_cc --version | head -n1)
3036 gcc_basever=$($_cc -dumpversion)
3037 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3038 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3039 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3040 if ! $_cc -dumpversion | grep -q '^2\.'; then
3041 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3045 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3047 _ident=$($_cc --version | head -n1)
3052 elif $_cc -v 2>&1 | grep -q xlc; then
3054 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3056 _cflags_size='-O5 -qcompact'
3057 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3059 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3061 _cflags_speed='-fast'
3063 _flags_filter=ccc_flags
3064 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3065 test -d "$sysroot" || die "No valid sysroot specified."
3067 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3068 armcc_conf="$PWD/armcc.conf"
3069 $_cc --arm_linux_configure \
3070 --arm_linux_config_file="$armcc_conf" \
3071 --configure_sysroot="$sysroot" \
3072 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3073 die "Error creating armcc configuration file."
3074 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3075 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3076 as_default="${cross_prefix}gcc"
3080 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3082 _ident=$($_cc -version | head -n1 | tr -s ' ')
3083 _flags='--gcc --abi=eabi -me'
3086 _depflags='-ppa -ppd=$(@:.o=.d)'
3087 _cflags_speed='-O3 -mf=5'
3088 _cflags_size='-O3 -mf=2'
3089 _flags_filter=tms470_flags
3090 elif $_cc -v 2>&1 | grep -q clang; then
3092 _ident=$($_cc --version 2>/dev/null | head -n1)
3093 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3096 elif $_cc -V 2>&1 | grep -q Sun; then
3098 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3099 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3100 _DEPFLAGS='-xM1 -xc99'
3103 _cflags_size='-O5 -xspace'
3104 _flags_filter=suncc_flags
3105 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3107 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3108 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3111 _flags_filter='filter_out -Wdisabled-optimization'
3112 elif $_cc -v 2>&1 | grep -q Open64; then
3114 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3115 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3118 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3119 elif $_cc -V 2>&1 | grep -q Portland; then
3121 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3122 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3123 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3124 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3126 _flags_filter=pgi_flags
3127 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3129 _ident=$($_cc | head -n1)
3130 # 4509: "This form of conditional instruction is deprecated"
3131 _flags="-nologo -ignore 4509"
3132 _flags_filter=armasm_flags
3133 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3135 _ident=$($_cc 2>&1 | head -n1)
3136 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3137 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3140 if $_cc -nologo- 2>&1 | grep -q Linker; then
3147 _flags_filter=msvc_flags
3149 _ld_path='-libpath:'
3151 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3152 elif $_cc 2>&1 | grep -q Intel; then
3154 _ident=$($_cc 2>&1 | head -n1)
3155 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3156 # Not only is O3 broken on 13.x+ but it is slower on all previous
3157 # versions (tested) as well.
3159 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3160 if $_cc 2>&1 | grep -q Linker; then
3167 _flags_filter=icl_flags
3169 _ld_path='-libpath:'
3170 # -Qdiag-error to make icl error when seeing certain unknown arguments
3171 _flags='-nologo -Qdiag-error:4044,10157'
3172 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3173 # with MSVC which enables it by default.
3174 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3175 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3177 _ident=$($_cc --version | head -n1)
3181 _flags_filter=cparser_flags
3184 eval ${pfx}_type=\$_type
3185 eval ${pfx}_ident=\$_ident
3189 eval ${1}_C=\${_cc_c-\${${1}_C}}
3190 eval ${1}_E=\${_cc_e-\${${1}_E}}
3191 eval ${1}_O=\${_cc_o-\${${1}_O}}
3193 if [ -n "$_depflags" ]; then
3194 eval ${1}_DEPFLAGS=\$_depflags
3196 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3197 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3198 eval DEP${1}FLAGS=\$_flags
3203 cflags_filter=$_flags_filter
3204 cflags_speed=$_cflags_speed
3205 cflags_size=$_cflags_size
3206 cflags_noopt=$_cflags_noopt
3207 add_cflags $_flags $_cflags
3208 cc_ldflags=$_ldflags
3211 probe_cc hostcc "$host_cc"
3212 host_cflags_filter=$_flags_filter
3213 add_host_cflags $_flags $_cflags
3216 test -n "$cc_type" && enable $cc_type ||
3217 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3219 : ${as_default:=$cc}
3220 : ${objcc_default:=$cc}
3221 : ${dep_cc_default:=$cc}
3222 : ${ld_default:=$cc}
3223 : ${host_ld_default:=$host_cc}
3224 set_default ar as objcc dep_cc ld host_ld
3227 asflags_filter=$_flags_filter
3228 add_asflags $_flags $_cflags
3231 probe_cc objcc "$objcc"
3232 objcflags_filter=$_flags_filter
3233 add_objcflags $_flags $_cflags
3237 ldflags_filter=$_flags_filter
3238 add_ldflags $_flags $_ldflags
3239 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3241 LD_LIB=${_ld_lib-$LD_LIB}
3242 LD_PATH=${_ld_path-$LD_PATH}
3244 probe_cc hostld "$host_ld"
3245 host_ldflags_filter=$_flags_filter
3246 add_host_ldflags $_flags $_ldflags
3247 HOSTLD_O=${_ld_o-$HOSTLD_O}
3249 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3250 probe_cc depcc "$dep_cc"
3251 CCDEP=${_DEPCMD:-$DEPCMD}
3252 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3256 if $ar 2>&1 | grep -q Microsoft; then
3259 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3262 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3263 arflags='-Xany -r -c'
3270 add_cflags $extra_cflags
3271 add_objcflags $extra_objcflags
3272 add_asflags $extra_cflags
3274 if test -n "$sysroot"; then
3277 add_cppflags --sysroot="$sysroot"
3278 add_ldflags --sysroot="$sysroot"
3281 add_cppflags -I"$sysinclude"
3282 add_ldflags --sysroot="$sysroot"
3287 if test "$cpu" = host; then
3288 enabled cross_compile &&
3289 die "--cpu=host makes no sense when cross-compiling."
3294 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3296 s/.*$1=\\([^ ]*\\).*/\\1/
3301 cpu=$(check_native -march || check_native -mcpu)
3305 test "${cpu:-host}" = host &&
3306 die "--cpu=host not supported with compiler $cc"
3309 # Deal with common $arch aliases
3323 "Power Macintosh"|ppc*|powerpc*)
3338 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3343 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3346 # Add processor-specific flags
3347 if enabled aarch64; then
3351 cpuflags="-march=$cpu"
3354 cpuflags="-mcpu=$cpu"
3358 elif enabled alpha; then
3360 cpuflags="-mcpu=$cpu"
3362 elif enabled arm; then
3365 check_cpp_condition stddef.h \
3366 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3371 if check_arm_arch 4; then echo armv4;
3372 elif check_arm_arch 4T; then echo armv4t;
3373 elif check_arm_arch 5; then echo armv5;
3374 elif check_arm_arch 5E; then echo armv5e;
3375 elif check_arm_arch 5T; then echo armv5t;
3376 elif check_arm_arch 5TE; then echo armv5te;
3377 elif check_arm_arch 5TEJ; then echo armv5te;
3378 elif check_arm_arch 6; then echo armv6;
3379 elif check_arm_arch 6J; then echo armv6j;
3380 elif check_arm_arch 6K; then echo armv6k;
3381 elif check_arm_arch 6Z; then echo armv6z;
3382 elif check_arm_arch 6ZK; then echo armv6zk;
3383 elif check_arm_arch 6T2; then echo armv6t2;
3384 elif check_arm_arch 7; then echo armv7;
3385 elif check_arm_arch 7A 7_A; then echo armv7-a;
3386 elif check_arm_arch 7S; then echo armv7-a;
3387 elif check_arm_arch 7R 7_R; then echo armv7-r;
3388 elif check_arm_arch 7M 7_M; then echo armv7-m;
3389 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3390 elif check_arm_arch 8A 8_A; then echo armv8-a;
3394 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3398 cpuflags="-march=$cpu"
3399 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3402 cpuflags="-mcpu=$cpu"
3404 cortex-a*) subarch=armv7a ;;
3405 cortex-r*) subarch=armv7r ;;
3406 cortex-m*) enable thumb; subarch=armv7m ;;
3407 arm11*) subarch=armv6 ;;
3408 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3409 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3410 *) subarch=$(probe_arm_arch) ;;
3416 armv5t*) enable fast_clz ;;
3417 armv[6-8]*) enable fast_clz fast_unaligned ;;
3420 elif enabled avr32; then
3425 cpuflags="-mpart=$cpu"
3429 cpuflags="-march=$cpu"
3433 cpuflags="-mcpu=$cpu"
3437 cpuflags="-march=$cpu"
3441 elif enabled bfin; then
3443 cpuflags="-mcpu=$cpu"
3445 elif enabled mips; then
3447 cpuflags="-march=$cpu"
3449 elif enabled ppc; then
3453 case $(tolower $cpu) in
3454 601|ppc601|powerpc601)
3455 cpuflags="-mcpu=601"
3458 603*|ppc603*|powerpc603*)
3459 cpuflags="-mcpu=603"
3462 604*|ppc604*|powerpc604*)
3463 cpuflags="-mcpu=604"
3466 g3|75*|ppc75*|powerpc75*)
3467 cpuflags="-mcpu=750"
3470 g4|745*|ppc745*|powerpc745*)
3471 cpuflags="-mcpu=7450"
3474 74*|ppc74*|powerpc74*)
3475 cpuflags="-mcpu=7400"
3478 g5|970|ppc970|powerpc970)
3479 cpuflags="-mcpu=970"
3483 cpuflags="-mcpu=$cpu"
3487 cpuflags="-mcpu=$cpu"
3491 cpuflags="-mcpu=cell"
3496 cpuflags="-mcpu=e500mc"
3500 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3505 cpuflags="-mcpu=8540 -mhard-float"
3511 elif enabled sparc; then
3514 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3515 cpuflags="-mcpu=$cpu"
3517 ultrasparc*|niagara[234])
3518 cpuflags="-mcpu=$cpu"
3522 elif enabled x86; then
3526 cpuflags="-march=$cpu"
3530 # targets that do NOT support nopl and conditional mov (cmov)
3531 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3532 cpuflags="-march=$cpu"
3535 # targets that do support nopl and conditional mov (cmov)
3536 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3537 cpuflags="-march=$cpu"
3541 # targets that do support conditional mov but on which it's slow
3542 pentium4|pentium4m|prescott|nocona)
3543 cpuflags="-march=$cpu"
3551 if [ "$cpu" != generic ]; then
3552 add_cflags $cpuflags
3553 add_asflags $cpuflags
3554 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3557 # compiler sanity check
3559 int main(void){ return 0; }
3561 if test "$?" != 0; then
3562 echo "$cc is unable to create an executable file."
3563 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3564 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3565 echo "Only do this if you know what cross compiling means."
3567 die "C compiler test failed."
3570 add_cppflags -D_ISOC99_SOURCE
3571 check_cflags -std=c99
3572 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3575 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3579 add_host_cppflags -D_ISOC99_SOURCE
3580 check_host_cflags -std=c99
3581 check_host_cflags -Wall
3582 check_host_cflags -O3
3588 check_code cc "" "int test[2*($expr) - 1]" &&
3589 subarch=$arch64 || subarch=$arch32
3597 check_64bit mips mips64 '_MIPS_SIM > 1'
3601 check_64bit parisc parisc64 'sizeof(void *) > 4'
3605 check_64bit ppc ppc64 'sizeof(void *) > 4'
3609 check_64bit s390 s390x 'sizeof(void *) > 4'
3613 check_64bit sparc sparc64 'sizeof(void *) > 4'
3617 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3618 if test "$subarch" = "x86_64"; then
3625 enabled spic && enable_weak pic
3631 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3632 enabled shared && add_ldflags -Wl,-brtl
3636 enable section_data_rel_ro
3637 SLIB_INSTALL_NAME='$(SLIBNAME)'
3639 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3642 prefix_default="/boot/common"
3643 network_extralibs="-lnetwork"
3647 SHFLAGS='-shared -Wl,-h,$$(@F)'
3648 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3649 network_extralibs="-lsocket -lnsl"
3650 # When using suncc to build, the Solaris linker will mark
3651 # an executable with each instruction set encountered by
3652 # the Solaris assembler. As our libraries contain their own
3653 # guards for processor-specific code, instead suppress
3654 # generation of the HWCAPS ELF section on Solaris x86 only.
3655 enabled_all suncc x86 &&
3656 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3657 add_ldflags -Wl,-M,mapfile
3658 nm_default='nm -P -g'
3659 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3663 oss_indev_extralibs="-lossaudio"
3664 oss_outdev_extralibs="-lossaudio"
3669 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3671 oss_indev_extralibs="-lossaudio"
3672 oss_outdev_extralibs="-lossaudio"
3680 add_extralibs -lpoll -lgnugetopt
3683 enabled ppc && add_asflags -force_cpusubtype_ALL
3684 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3685 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3686 add_ldflags -Wl,-dynamic,-search_paths_first
3688 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3689 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3691 enabled x86_64 && objformat="macho64"
3692 enabled_any pic shared ||
3693 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3696 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3699 if test $target_os = "mingw32ce"; then
3705 if enabled x86_64; then
3706 LIBTARGET="i386:x86-64"
3707 elif enabled arm; then
3710 check_ldflags -Wl,--nxcompat
3711 check_ldflags -Wl,--dynamicbase
3712 shlibdir_default="$bindir_default"
3715 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3716 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3717 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3718 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3720 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3721 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3722 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3724 dlltool="${cross_prefix}dlltool"
3730 if enabled shared; then
3731 # Link to the import library instead of the normal static library
3734 # Cannot build both shared and static libs with MSVC or icl.
3737 shlibdir_default="$bindir_default"
3740 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3741 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3742 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3743 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3745 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3746 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3747 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3754 shlibdir_default="$bindir_default"
3757 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3758 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3759 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3761 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3762 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3766 *-dos|freedos|opendos)
3767 network_extralibs="-lsocket"
3770 add_cppflags -U__STRICT_ANSI__
3774 enable section_data_rel_ro
3778 ranlib="echo ignoring ranlib"
3783 add_cppflags -D_GNU_SOURCE
3784 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3785 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3789 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3790 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3791 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3792 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3793 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3794 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3795 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3796 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3797 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3798 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3802 add_cppflags -D_BSD_SOURCE
3807 add_cppflags -D_QNX_SOURCE
3808 network_extralibs="-lsocket"
3813 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3814 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3815 add_ldflags -Wl,--target1-abs,--no-undefined \
3816 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3817 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3818 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3819 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3820 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3823 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3828 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3829 -D_REENTRANT_SOURCE \
3830 -D_RESEARCH_SOURCE \
3833 add_compat strtod.o strtod=avpriv_strtod
3834 network_extralibs='-lbsd'
3835 exeobjs=compat/plan9/main.o
3841 die "Unknown OS '$target_os'."
3845 # determine libc flavour
3850 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3851 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3852 eval ${pfx}libc_type=uclibc
3853 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3854 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3855 eval ${pfx}libc_type=glibc
3856 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3857 # MinGW headers can be installed on Cygwin, so check for newlib first.
3858 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3859 eval ${pfx}libc_type=newlib
3860 add_${pfx}cppflags -U__STRICT_ANSI__
3861 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3862 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3863 eval ${pfx}libc_type=mingw64
3864 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3865 eval test \$${pfx_no_}cc_type = "gcc" &&
3866 add_${pfx}cppflags -D__printf__=__gnu_printf__
3867 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3868 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3869 eval ${pfx}libc_type=mingw32
3870 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3871 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3872 die "ERROR: MinGW32 runtime version must be >= 3.15."
3873 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3874 eval test \$${pfx_no_}cc_type = "gcc" &&
3875 add_${pfx}cppflags -D__printf__=__gnu_printf__
3876 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3877 eval ${pfx}libc_type=msvcrt
3878 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3879 if [ "$pfx" = host_ ]; then
3880 add_host_cppflags -Dsnprintf=_snprintf
3882 add_compat strtod.o strtod=avpriv_strtod
3883 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3884 _snprintf=avpriv_snprintf \
3885 vsnprintf=avpriv_vsnprintf
3888 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3889 # 0x601 by default unless something else is set by the user.
3890 # This can easily lead to us detecting functions only present
3891 # in such new versions and producing binaries requiring windows 7.0.
3892 # Therefore explicitly set the default to XP unless the user has
3893 # set something else on the command line.
3894 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3895 # family. For these cases, configure is free to use any functions
3896 # found in the SDK headers by default. (Alternatively, we could force
3897 # _WIN32_WINNT to 0x0602 in that case.)
3898 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3899 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3900 #ifdef WINAPI_FAMILY
3901 #include <winapifamily.h>
3902 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3907 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3908 eval ${pfx}libc_type=klibc
3909 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3910 eval ${pfx}libc_type=bionic
3911 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3912 eval ${pfx}libc_type=solaris
3913 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3915 eval ${pfx}libc_type=default
3916 add_${pfx}cppflags -D_DEFAULT_SOURCE
3921 test -n "$libc_type" && enable libc_$libc_type
3923 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3927 add_compat strtod.o strtod=avpriv_strtod
3931 # hacks for compiler/libc/os combinations
3933 if enabled_all tms470 libc_glibc; then
3934 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3935 add_cppflags -D__USER_LABEL_PREFIX__=
3936 add_cppflags -D__builtin_memset=memset
3937 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3938 add_cflags -pds=48 # incompatible redefinition of macro
3941 if enabled_all ccc libc_glibc; then
3942 add_ldflags -Wl,-z,now # calls to libots crash without this
3945 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3946 add_cppflags '-I\$(SRC_PATH)/compat/float'
3949 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3952 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3954 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3956 set_default $PATHS_LIST
3959 # we need to build at least one lib type
3960 if ! enabled_any static shared; then
3962 At least one library type must be built.
3963 Specify --enable-static to build the static libraries or --enable-shared to
3964 build the shared libraries as well. To only build the shared libraries specify
3965 --disable-static in addition to --enable-shared.
3970 die_license_disabled() {
3971 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3974 die_license_disabled gpl libcdio
3975 die_license_disabled gpl libx264
3976 die_license_disabled gpl libx265
3977 die_license_disabled gpl libxavs
3978 die_license_disabled gpl libxvid
3979 die_license_disabled gpl x11grab
3981 die_license_disabled nonfree libfaac
3982 die_license_disabled nonfree libfdk_aac
3983 die_license_disabled nonfree nvenc
3984 die_license_disabled nonfree openssl
3986 die_license_disabled version3 libopencore_amrnb
3987 die_license_disabled version3 libopencore_amrwb
3988 die_license_disabled version3 libvo_aacenc
3989 die_license_disabled version3 libvo_amrwbenc
3991 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3993 disabled optimizations || check_cflags -fomit-frame-pointer
3996 disabled pic && return
3999 case "$target_os" in
4009 enabled pic && enable_weak_pic
4011 check_cc <<EOF || die "Symbol mangling check failed."
4014 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4015 extern_prefix=${sym%%ff_extern*}
4017 check_cc <<EOF && enable_weak inline_asm
4018 void foo(void) { __asm__ volatile ("" ::); }
4022 for restrict_keyword in restrict __restrict__ __restrict; do
4023 check_cc <<EOF && _restrict=$restrict_keyword && break
4024 void foo(char * $restrict_keyword p);
4028 check_cc <<EOF && enable pragma_deprecated
4029 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4032 check_cc <<EOF && enable attribute_packed
4033 struct { int x; } __attribute__((packed)) x;
4036 check_cc <<EOF && enable attribute_may_alias
4037 union { int x; } __attribute__((may_alias)) x;
4040 check_cc <<EOF || die "endian test failed"
4041 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4043 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4046 log "check_gas using '$as' as AS"
4047 # :vararg is used on aarch64, arm and ppc altivec
4048 check_as <<EOF || return 1
4049 .macro m n, y:vararg=0
4054 # .altmacro is only used in arm asm
4055 ! enabled arm || check_as <<EOF || return 1
4062 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4064 enabled_any arm aarch64 && nogas=die
4065 enabled_all ppc altivec && nogas=warn
4069 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4070 gcc) gaspp_as_type=gas ;;
4071 *) gaspp_as_type=$as_type ;;
4074 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4076 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4077 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4079 if ! check_gas ; then
4082 $nogas "GNU assembler not found, install/update gas-preprocessor"
4085 check_as <<EOF && enable as_func
4091 check_inline_asm inline_asm_labels '"1:\n"'
4093 if enabled aarch64; then
4094 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4095 # internal assembler in clang 3.3 does not support this instruction
4096 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4097 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4099 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4101 elif enabled alpha; then
4105 elif enabled arm; then
4107 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4108 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4109 enabled thumb && check_cflags -mthumb || check_cflags -marm
4111 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4113 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4115 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4116 case "${cross_prefix:-$cc}" in
4117 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4118 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4119 __asm__ (".eabi_attribute 28, 1");
4120 int main(void) { return 0; }
4123 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4126 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4127 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4128 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4129 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4130 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4131 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4133 [ $target_os = linux ] || [ $target_os = android ] ||
4134 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4137 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4139 check_as <<EOF && enable as_dn_directive
4144 # llvm's integrated assembler supports .object_arch from llvm 3.5
4145 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4149 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4151 elif enabled mips; then
4153 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4155 # make sure that only an instruction set is enabled
4156 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4158 if enabled mips64; then
4159 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4160 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4161 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4163 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4164 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4165 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4168 elif enabled parisc; then
4170 if enabled gcc; then
4171 case $($cc -dumpversion) in
4172 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4176 elif enabled ppc; then
4178 enable local_aligned_8 local_aligned_16
4180 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4181 check_inline_asm ibm_asm '"add 0, 0, 0"'
4182 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4183 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4185 # AltiVec flags: The FSF version of GCC differs from the Apple version
4186 if enabled altivec; then
4187 check_cflags -maltivec -mabi=altivec &&
4188 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4189 check_cflags -faltivec
4191 # check if our compiler supports Motorola AltiVec C API
4192 check_cc <<EOF || disable altivec
4195 vector signed int v1 = (vector signed int) { 0 };
4196 vector signed int v2 = (vector signed int) { 1 };
4197 v1 = vec_add(v1, v2);
4202 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4205 if enabled vsx; then
4206 check_cflags -mvsx &&
4207 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4210 if enabled power8; then
4211 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4214 elif enabled x86; then
4216 check_builtin rdtsc intrin.h "__rdtsc()"
4217 check_builtin mm_empty mmintrin.h "_mm_empty()"
4219 enable local_aligned_8 local_aligned_16
4221 # check whether EBP is available on x86
4222 # As 'i' is stored on the stack, this program will crash
4223 # if the base pointer is used to access it because the
4224 # base pointer is cleared in the inline assembly code.
4225 check_exec_crash <<EOF && enable ebp_available
4227 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4231 # check whether EBX is available on x86
4232 check_inline_asm ebx_available '""::"b"(0)' &&
4233 check_inline_asm ebx_available '"":::"%ebx"'
4235 # check whether xmm clobbers are supported
4236 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4238 # check whether binutils is new enough to compile SSSE3/MMXEXT
4239 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4240 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4242 if ! disabled_any asm mmx yasm; then
4243 if check_cmd $yasmexe --version; then
4244 enabled x86_64 && yasm_extra="-m amd64"
4245 yasm_debug="-g dwarf2"
4246 elif check_cmd nasm -v; then
4248 yasm_debug="-g -F dwarf"
4249 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4252 YASMFLAGS="-f $objformat $yasm_extra"
4253 enabled pic && append YASMFLAGS "-DPIC"
4254 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4255 case "$objformat" in
4256 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4259 check_yasm "movbe ecx, [5]" && enable yasm ||
4260 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4261 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4262 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4263 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4264 check_yasm "CPU amdnop" || disable cpunop
4268 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4275 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4277 check_ldflags -Wl,--as-needed
4279 if check_func dlopen; then
4281 elif check_func dlopen -ldl; then
4285 if ! disabled network; then
4286 check_func getaddrinfo $network_extralibs
4287 check_func inet_aton $network_extralibs
4289 check_type netdb.h "struct addrinfo"
4290 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4291 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4292 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4293 check_type poll.h "struct pollfd"
4294 check_type netinet/sctp.h "struct sctp_event_subscribe"
4295 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4296 check_type netinet/in.h "struct sockaddr_in6"
4297 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4298 check_type "sys/types.h sys/socket.h" socklen_t
4300 # Prefer arpa/inet.h over winsock2
4301 if check_header arpa/inet.h ; then
4302 check_func closesocket
4303 elif check_header winsock2.h ; then
4304 check_func_headers winsock2.h closesocket -lws2 &&
4305 network_extralibs="-lws2" ||
4306 { check_func_headers winsock2.h closesocket -lws2_32 &&
4307 network_extralibs="-lws2_32"; } || disable winsock2_h network
4308 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4310 check_type ws2tcpip.h socklen_t
4311 check_type ws2tcpip.h "struct addrinfo"
4312 check_type ws2tcpip.h "struct group_source_req"
4313 check_type ws2tcpip.h "struct ip_mreq_source"
4314 check_type ws2tcpip.h "struct ipv6_mreq"
4315 check_type winsock2.h "struct pollfd"
4316 check_struct winsock2.h "struct sockaddr" sa_len
4317 check_type ws2tcpip.h "struct sockaddr_in6"
4318 check_type ws2tcpip.h "struct sockaddr_storage"
4324 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4325 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4326 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4327 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4329 case "$custom_allocator" in
4331 # jemalloc by default does not use a prefix
4332 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4335 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4340 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4341 check_func ${malloc_prefix}memalign && enable memalign
4342 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4344 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4345 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4349 check_func gethrtime
4351 check_func getrusage
4352 check_func gettimeofday
4355 check_func localtime_r
4356 check_func mach_absolute_time
4360 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4361 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4362 check_func sched_getaffinity
4363 check_func setrlimit
4364 check_func strerror_r
4369 check_func_headers io.h setmode
4370 check_func_headers stdlib.h getenv
4372 check_func_headers windows.h CoTaskMemFree -lole32
4373 check_func_headers windows.h GetProcessAffinityMask
4374 check_func_headers windows.h GetProcessTimes
4375 check_func_headers windows.h GetSystemTimeAsFileTime
4376 check_func_headers windows.h LoadLibrary
4377 check_func_headers windows.h MapViewOfFile
4378 check_func_headers windows.h SetConsoleTextAttribute
4379 check_func_headers windows.h Sleep
4380 check_func_headers windows.h VirtualAlloc
4381 check_struct windows.h "CONDITION_VARIABLE" Ptr
4383 check_header direct.h
4384 check_header dlfcn.h
4385 check_header d3d11.h
4387 check_header dxva2api.h
4389 check_header mach/mach_time.h
4390 check_header malloc.h
4392 check_header sys/mman.h
4393 check_header sys/param.h
4394 check_header sys/resource.h
4395 check_header sys/select.h
4396 check_header sys/time.h
4397 check_header sys/un.h
4398 check_header unistd.h
4399 check_header valgrind/valgrind.h
4400 check_header vdpau/vdpau.h
4401 check_header vdpau/vdpau_x11.h
4402 check_header VideoDecodeAcceleration/VDADecoder.h
4403 check_header windows.h
4404 check_header X11/extensions/XvMClib.h
4406 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4407 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4408 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4410 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4412 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4413 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4414 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4416 if ! disabled w32threads && ! enabled pthreads; then
4417 check_func_headers "windows.h process.h" _beginthreadex &&
4418 enable w32threads || disable w32threads
4421 # check for some common methods of building with pthread support
4422 # do this before the optional library checks as some of them require pthreads
4423 if ! disabled pthreads && ! enabled w32threads; then
4425 if check_func pthread_join -pthread; then
4427 add_extralibs -pthread
4428 elif check_func pthread_join -pthreads; then
4429 add_cflags -pthreads
4430 add_extralibs -pthreads
4431 elif check_func pthread_join -lpthreadGC2; then
4432 add_extralibs -lpthreadGC2
4433 elif check_lib pthread.h pthread_join -lpthread; then
4435 elif ! check_func pthread_join; then
4440 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4441 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4443 check_lib math.h sin -lm && LIBM="-lm"
4444 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4450 for func in $MATH_FUNCS; do
4451 eval check_mathfunc $func \${${func}_args:-1}
4454 # these are off by default, so fail if requested and not available
4455 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4456 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4457 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4458 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4459 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4460 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4461 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4462 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4463 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4464 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4465 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4466 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4467 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4468 done || die "ERROR: libgsm not found"; }
4469 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4470 enabled libkvazaar && require_pkg_config "kvazaar >= 0.7.1" kvazaar.h kvz_api_get
4471 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4472 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4473 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4474 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4475 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4476 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4477 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4478 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4479 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4480 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4481 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4482 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4483 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4484 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4485 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4486 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4487 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4488 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4489 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4490 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4491 enabled libvpx_vp8_decoder && {
4492 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4493 disable libvpx_vp8_decoder;
4495 enabled libvpx_vp8_encoder && {
4496 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4497 disable libvpx_vp8_encoder;
4499 enabled libvpx_vp9_decoder && {
4500 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4501 disable libvpx_vp9_decoder;
4503 enabled libvpx_vp9_encoder && {
4504 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4505 disable libvpx_vp9_encoder;
4507 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4508 die "libvpx enabled but no supported decoders found"
4511 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4512 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4513 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4514 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4515 die "ERROR: libx264 version must be >= 0.118."; } &&
4516 { check_cpp_condition x264.h "X264_MPEG2" &&
4518 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4519 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4520 die "ERROR: libx265 version must be >= 57."; }
4521 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4522 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4523 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4524 { ! enabled cross_compile && {
4525 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4526 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4527 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4528 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4529 die "ERROR: mmal not found"; }
4530 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4531 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4532 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4533 die "ERROR: openssl not found"; }
4535 if enabled gnutls; then
4536 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4537 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4541 if enabled libdc1394; then
4542 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4543 enable libdc1394_2; } ||
4544 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4545 enable libdc1394_1; } ||
4546 die "ERROR: No version of libdc1394 found "
4549 if enabled nvenc; then
4550 check_header cuda.h || die "ERROR: cuda.h not found.";
4551 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4552 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4553 die "ERROR: NVENC API version 4 or older is not supported";
4556 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4557 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4558 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4562 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4563 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4565 check_header linux/fb.h
4566 check_header linux/videodev2.h
4567 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4569 check_header AVFoundation/AVFoundation.h &&
4570 check_objcflags -fobjc-arc &&
4571 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4572 disable AVFoundation_AVFoundation_h
4574 check_header sys/videoio.h
4576 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4577 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4578 # w32api 3.12 had it defined wrong
4579 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4581 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4582 { check_header dev/bktr/ioctl_meteor.h &&
4583 check_header dev/bktr/ioctl_bt848.h; } ||
4584 { check_header machine/ioctl_meteor.h &&
4585 check_header machine/ioctl_bt848.h; } ||
4586 { check_header dev/video/meteor/ioctl_meteor.h &&
4587 check_header dev/video/bktr/ioctl_bt848.h; } ||
4588 check_header dev/ic/bt8xx.h
4590 check_header sndio.h
4591 check_header sys/soundcard.h
4592 check_header soundcard.h
4594 enabled_any alsa_indev alsa_outdev &&
4595 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4597 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4598 check_func jack_port_get_latency_range -ljack
4600 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4602 if enabled libcdio; then
4603 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4604 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4605 die "ERROR: No usable libcdio/cdparanoia found"
4608 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4610 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4611 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4612 enabled libxcb && die "ERROR: libxcb not found";
4613 } && disable x11grab && enable libxcb
4615 disabled libxcb_shm ||
4616 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4617 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4618 } && check_header sys/shm.h && enable libxcb_shm
4620 disabled libxcb_xfixes ||
4621 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4622 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4623 } && enable libxcb_xfixes
4625 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4626 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4629 if enabled x11grab; then
4630 enabled xlib || die "ERROR: Xlib not found"
4631 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4632 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4635 enabled vaapi && enabled xlib &&
4636 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4640 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4643 enabled vdpau && enabled xlib &&
4644 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4645 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4648 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4650 # add some useful compiler flags if supported
4651 check_cflags -Wdeclaration-after-statement
4653 check_cflags -Wdisabled-optimization
4654 check_cflags -Wpointer-arith
4655 check_cflags -Wredundant-decls
4656 check_cflags -Wwrite-strings
4657 check_cflags -Wtype-limits
4658 check_cflags -Wundef
4659 check_cflags -Wmissing-prototypes
4660 check_cflags -Wstrict-prototypes
4661 enabled extra_warnings && check_cflags -Winline
4662 enabled extra_warnings && check_cflags -Wcast-qual
4664 check_disable_warning(){
4665 warning_flag=-W${1#-Wno-}
4666 test_cflags $warning_flag && add_cflags $1
4669 check_disable_warning -Wno-parentheses
4670 check_disable_warning -Wno-switch
4671 check_disable_warning -Wno-format-zero-length
4672 check_disable_warning -Wno-pointer-sign
4674 # add some linker flags
4675 check_ldflags -Wl,--warn-common
4676 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4677 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4678 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4680 # add some strip flags
4681 # -wN '..@*' is more selective than -x, but not available everywhere.
4682 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4684 enabled neon_clobber_test &&
4685 check_ldflags -Wl,--wrap,avcodec_open2 \
4686 -Wl,--wrap,avcodec_decode_audio4 \
4687 -Wl,--wrap,avcodec_decode_video2 \
4688 -Wl,--wrap,avcodec_decode_subtitle2 \
4689 -Wl,--wrap,avcodec_encode_audio2 \
4690 -Wl,--wrap,avcodec_encode_video2 \
4691 -Wl,--wrap,avcodec_encode_subtitle \
4692 -Wl,--wrap,avresample_convert ||
4693 disable neon_clobber_test
4695 enabled xmm_clobber_test &&
4696 check_ldflags -Wl,--wrap,avcodec_open2 \
4697 -Wl,--wrap,avcodec_decode_audio4 \
4698 -Wl,--wrap,avcodec_decode_video2 \
4699 -Wl,--wrap,avcodec_decode_subtitle2 \
4700 -Wl,--wrap,avcodec_encode_audio2 \
4701 -Wl,--wrap,avcodec_encode_video2 \
4702 -Wl,--wrap,avcodec_encode_subtitle \
4703 -Wl,--wrap,avresample_convert \
4704 -Wl,--wrap,sws_scale ||
4705 disable xmm_clobber_test
4707 echo "X { local: *; };" > $TMPV
4708 if test_ldflags -Wl,--version-script,$TMPV; then
4709 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4710 elif test_ldflags -Wl,-M,$TMPV; then
4711 append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
4714 check_cc <<EOF && enable symver_asm_label
4715 void ff_foo(void) __asm__ ("av_foo@VERSION");
4716 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4718 check_cc <<EOF && enable symver_gnu_asm
4719 __asm__(".symver ff_foo,av_foo@VERSION");
4720 void ff_foo(void) {}
4723 if [ -z "$optflags" ]; then
4724 if enabled small; then
4725 optflags=$cflags_size
4726 elif enabled optimizations; then
4727 optflags=$cflags_speed
4729 optflags=$cflags_noopt
4735 enabled lto && check_ldflags "$@"
4739 if enabled lto; then
4740 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4742 check_ldflags -flto $cpuflags
4745 check_optflags $optflags
4746 check_optflags -fno-math-errno
4747 check_optflags -fno-signed-zeros
4749 if enabled icc; then
4750 # Just warnings, no remarks
4752 # -wd: Disable following warnings
4753 # 144, 167, 556: -Wno-pointer-sign
4754 # 1292: attribute "foo" ignored
4755 # 1419: external declaration in primary source file
4756 # 10006: ignoring unknown option -fno-signed-zeros
4757 # 10148: ignoring unknown option -Wno-parentheses
4758 # 10156: ignoring option '-W'; no argument required
4759 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4760 # 11030: Warning unknown option --as-needed
4761 # 10156: ignoring option '-export'; no argument required
4762 check_ldflags -wd10156,11030
4763 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4764 enable ebp_available
4765 if enabled x86_32; then
4766 icc_version=$($cc -dumpversion)
4767 test ${icc_version%%.*} -ge 11 &&
4768 check_cflags -falign-stack=maintain-16-byte ||
4769 disable aligned_stack
4771 elif enabled ccc; then
4772 # disable some annoying warnings
4773 add_cflags -msg_disable bitnotint
4774 add_cflags -msg_disable mixfuncvoid
4775 add_cflags -msg_disable nonstandcast
4776 add_cflags -msg_disable unsupieee
4777 elif enabled gcc; then
4778 check_optflags -fno-tree-vectorize
4779 check_cflags -Werror=implicit-function-declaration
4780 check_cflags -Werror=missing-prototypes
4781 check_cflags -Werror=return-type
4782 check_cflags -Werror=declaration-after-statement
4783 check_cflags -Werror=vla
4784 check_cflags -Werror=format-security
4785 check_cflags -fdiagnostics-color=auto
4786 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4787 elif enabled llvm_gcc; then
4788 check_cflags -mllvm -stack-alignment=16
4789 elif enabled clang; then
4790 check_cflags -mllvm -stack-alignment=16
4791 check_cflags -Qunused-arguments
4792 check_cflags -Werror=implicit-function-declaration
4793 check_cflags -Werror=missing-prototypes
4794 check_cflags -Werror=return-type
4795 elif enabled cparser; then
4796 add_cflags -Wno-missing-variable-declarations
4797 add_cflags -Wno-empty-statement
4798 elif enabled armcc; then
4799 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4800 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4801 # 2523: use of inline assembly is deprecated
4802 add_cflags -W${armcc_opt},--diag_suppress=2523
4803 add_cflags -W${armcc_opt},--diag_suppress=1207
4804 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4805 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4806 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4807 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4808 elif enabled tms470; then
4809 add_cflags -pds=824 -pds=837
4811 elif enabled pathscale; then
4812 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4813 elif enabled_any msvc icl; then
4814 enabled x86_32 && disable aligned_stack
4815 enabled_all x86_32 debug && add_cflags -Oy-
4816 enabled debug && add_ldflags -debug
4817 enable pragma_deprecated
4818 if enabled icl; then
4819 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4820 # (correctly) on icl 13.x.
4821 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4822 add_cflags -Qansi-alias
4823 # icl will pass the inline asm tests but inline asm is currently
4824 # not supported (build will fail)
4827 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4828 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4829 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4830 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4831 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4832 # MSVC 2013 and newer can handle it fine.
4833 # If this declspec fails, force including stdlib.h before the restrict redefinition
4834 # happens in config.h.
4835 if [ $_restrict != restrict ]; then
4836 check_cc <<EOF || add_cflags -FIstdlib.h
4837 __declspec($_restrict) void* foo(int);
4840 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4843 for pfx in "" host_; do
4844 varname=${pfx%_}cc_type
4845 eval "type=\$$varname"
4846 if [ $type = "msvc" ]; then
4847 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4848 static inline int foo(int a) { return a; }
4855 add_asflags -Qunused-arguments
4861 check_ldflags -Qunused-arguments
4867 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4870 add_cppflags -Dmain=plan9_main
4874 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4876 check_deps $CONFIG_LIST \
4881 enabled_all dxva2 CoTaskMemFree &&
4882 prepend avconv_libs $($ldflags_filter "-lole32") &&
4885 ! enabled_any memalign posix_memalign aligned_malloc &&
4886 enabled simd_align_16 && enable memalign_hack
4888 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4890 for thread in $THREADS_LIST; do
4891 if enabled $thread; then
4892 test -n "$thread_type" &&
4893 die "ERROR: Only one thread type must be selected." ||
4894 thread_type="$thread"
4898 enabled zlib && add_cppflags -DZLIB_CONST
4900 # conditional library dependencies, in linking order
4901 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
4902 enabled resample_filter && prepend avfilter_deps "avresample"
4903 enabled scale_filter && prepend avfilter_deps "swscale"
4905 enabled opus_decoder && prepend avcodec_deps "avresample"
4909 eval "deps=\$$lib_deps"
4910 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4914 map 'expand_deps $v' $LIBRARY_LIST
4916 echo "install prefix $prefix"
4917 echo "source path $source_path"
4918 echo "C compiler $cc"
4919 echo "C library $libc_type"
4920 if test "$host_cc" != "$cc"; then
4921 echo "host C compiler $host_cc"
4922 echo "host C library $host_libc_type"
4924 echo "ARCH $arch ($cpu)"
4925 if test "$build_suffix" != ""; then
4926 echo "build suffix $build_suffix"
4928 if test "$extra_version" != ""; then
4929 echo "version string suffix $extra_version"
4931 echo "big-endian ${bigendian-no}"
4932 echo "runtime cpu detection ${runtime_cpudetect-no}"
4933 if enabled x86; then
4934 echo "${yasmexe} ${yasm-no}"
4935 echo "MMX enabled ${mmx-no}"
4936 echo "MMXEXT enabled ${mmxext-no}"
4937 echo "3DNow! enabled ${amd3dnow-no}"
4938 echo "3DNow! extended enabled ${amd3dnowext-no}"
4939 echo "SSE enabled ${sse-no}"
4940 echo "SSSE3 enabled ${ssse3-no}"
4941 echo "AVX enabled ${avx-no}"
4942 echo "XOP enabled ${xop-no}"
4943 echo "FMA3 enabled ${fma3-no}"
4944 echo "FMA4 enabled ${fma4-no}"
4945 echo "i686 features enabled ${i686-no}"
4946 echo "CMOV is fast ${fast_cmov-no}"
4947 echo "EBX available ${ebx_available-no}"
4948 echo "EBP available ${ebp_available-no}"
4950 if enabled aarch64; then
4951 echo "NEON enabled ${neon-no}"
4952 echo "VFP enabled ${vfp-no}"
4954 if enabled arm; then
4955 echo "ARMv5TE enabled ${armv5te-no}"
4956 echo "ARMv6 enabled ${armv6-no}"
4957 echo "ARMv6T2 enabled ${armv6t2-no}"
4958 echo "VFP enabled ${vfp-no}"
4959 echo "NEON enabled ${neon-no}"
4961 if enabled ppc; then
4962 echo "AltiVec enabled ${altivec-no}"
4963 echo "VSX enabled ${vsx-no}"
4964 echo "POWER8 enabled ${power8-no}"
4965 echo "PPC 4xx optimizations ${ppc4xx-no}"
4966 echo "dcbzl available ${dcbzl-no}"
4968 echo "debug symbols ${debug-no}"
4969 echo "optimize for size ${small-no}"
4970 echo "optimizations ${optimizations-no}"
4971 echo "static ${static-no}"
4972 echo "shared ${shared-no}"
4973 echo "new filter support ${avfilter-no}"
4974 echo "network support ${network-no}"
4975 echo "threading support ${thread_type-no}"
4976 echo "safe bitstream reader ${safe_bitstream_reader-no}"
4977 echo "SDL support ${sdl-no}"
4978 test -n "$random_seed" &&
4979 echo "random seed ${random_seed}"
4982 echo "External libraries:"
4983 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4986 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4987 echo "Enabled ${type}s:"
4988 eval list=\$$(toupper $type)_LIST
4989 print_enabled '_*' $list | print_3_columns
4993 license="LGPL version 2.1 or later"
4994 if enabled nonfree; then
4995 license="nonfree and unredistributable"
4996 elif enabled gplv3; then
4997 license="GPL version 3 or later"
4998 elif enabled lgplv3; then
4999 license="LGPL version 3 or later"
5000 elif enabled gpl; then
5001 license="GPL version 2 or later"
5004 echo "License: $license"
5006 echo "Creating config.mak and config.h..."
5008 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5010 config_files="$TMPH config.mak"
5012 cat > config.mak <<EOF
5013 # Automatically generated by configure - do not modify!
5014 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5016 LIBDIR=\$(DESTDIR)$libdir
5017 SHLIBDIR=\$(DESTDIR)$shlibdir
5018 INCDIR=\$(DESTDIR)$incdir
5019 BINDIR=\$(DESTDIR)$bindir
5020 DATADIR=\$(DESTDIR)$datadir
5021 DOCDIR=\$(DESTDIR)$docdir
5022 MANDIR=\$(DESTDIR)$mandir
5023 SRC_PATH=$source_path
5026 INTRINSICS=$intrinsics
5033 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5035 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5046 OBJCFLAGS=$OBJCFLAGS
5061 LDEXEFLAGS=$LDEXEFLAGS
5062 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5063 STRIPFLAGS=$STRIPFLAGS
5064 YASMFLAGS=$YASMFLAGS
5065 BUILDSUF=$build_suffix
5073 EXTRA_VERSION=$extra_version
5075 CCDEP_FLAGS=$CCDEP_FLAGS
5077 ASDEP_FLAGS=$ASDEP_FLAGS
5078 CC_DEPFLAGS=$CC_DEPFLAGS
5079 AS_DEPFLAGS=$AS_DEPFLAGS
5082 HOSTCFLAGS=$host_cflags
5083 HOSTCPPFLAGS=$host_cppflags
5084 HOSTEXESUF=$HOSTEXESUF
5085 HOSTLDFLAGS=$host_ldflags
5088 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5089 HOSTCCDEP=$HOSTCCDEP
5090 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5091 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5095 TARGET_EXEC=$target_exec $target_exec_args
5096 TARGET_PATH=$target_path
5097 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5098 CFLAGS-avplay=$sdl_cflags
5099 ZLIB=$($ldflags_filter -lz)
5100 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5101 EXTRALIBS=$extralibs
5102 COMPAT_OBJS=$compat_objs
5105 LIBTARGET=${LIBTARGET}
5106 SLIBNAME=${SLIBNAME}
5107 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5108 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5109 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5110 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5111 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5112 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5113 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5114 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5115 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5120 name=$(toupper $lcname)
5121 file=$source_path/$lcname/version.h
5122 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5123 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5124 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5125 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5126 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5129 map 'get_version $v' $LIBRARY_LIST
5131 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5133 print_program_libs(){
5134 eval "program_libs=\$${1}_libs"
5135 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5138 map 'print_program_libs $v' $PROGRAM_LIST
5141 /* Automatically generated by configure - do not modify! */
5142 #ifndef LIBAV_CONFIG_H
5143 #define LIBAV_CONFIG_H
5144 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5145 #define LIBAV_LICENSE "$(c_escape $license)"
5146 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5147 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5148 #define restrict $_restrict
5149 #define EXTERN_PREFIX "${extern_prefix}"
5150 #define EXTERN_ASM ${extern_prefix}
5151 #define SLIBSUF "$SLIBSUF"
5154 test -n "$malloc_prefix" &&
5155 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5157 if enabled yasm; then
5158 append config_files $TMPASM
5162 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5164 print_config ARCH_ "$config_files" $ARCH_LIST
5165 print_config HAVE_ "$config_files" $HAVE_LIST
5166 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5170 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5172 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5173 cp_if_changed $TMPH config.h
5176 enabled yasm && cp_if_changed $TMPASM config.asm
5179 /* Generated by ffconf */
5180 #ifndef AVUTIL_AVCONFIG_H
5181 #define AVUTIL_AVCONFIG_H
5184 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5186 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5188 cp_if_changed $TMPH libavutil/avconfig.h
5190 test -n "$WARNINGS" && printf "\n$WARNINGS"
5192 # build pkg-config files
5195 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5198 pkgconfig_generate(){
5200 shortname=${name#lib}${build_suffix}
5204 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5205 requires=${requires%, }
5206 enabled ${name#lib} || return 0
5208 cat <<EOF > $name/$name.pc
5210 exec_prefix=\${prefix}
5215 Description: $comment
5217 Requires: $(enabled shared || echo $requires)
5218 Requires.private: $(enabled shared && echo $requires)
5220 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5221 Libs.private: $(enabled shared && echo $libs)
5222 Cflags: -I\${includedir}
5224 cat <<EOF > $name/$name-uninstalled.pc
5227 libdir=\${pcfiledir}
5228 includedir=${source_path}
5231 Description: $comment
5235 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5236 Cflags: -I\${includedir}
5240 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5241 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5242 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5243 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5244 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5245 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5246 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"