3 # Libav configure script
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
10 # Prevent locale nonsense from breaking basic text processing.
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
18 echo "Trying shell $1"
19 type "$1" > /dev/null 2>&1 && exec "$@"
23 (: ${foo%%bar}) 2> /dev/null
26 (: ${foo?}) 2> /dev/null
29 if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
32 if test "0$FF_CONF_EXEC" -lt 1; then
34 try_exec bash "$0" "$@"
36 if test "0$FF_CONF_EXEC" -lt 2; then
38 try_exec ksh "$0" "$@"
40 if test "0$FF_CONF_EXEC" -lt 3; then
42 try_exec /usr/xpg4/bin/sh "$0" "$@"
44 echo "No compatible shell script interpreter found."
45 echo "This configure script requires a POSIX-compatible shell"
46 echo "such as bash or ksh."
47 echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken Libav."
50 if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51 echo "This bash version ($BASH_VERSION) is broken on your platform."
52 echo "Upgrade to a later version if available."
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --prefix=PREFIX install in PREFIX [$prefix]
82 --bindir=DIR install binaries in DIR [PREFIX/bin]
83 --datadir=DIR install data files in DIR [PREFIX/share/avconv]
84 --docdir=DIR install documentation in DIR [PREFIX/share/doc/libav]
85 --libdir=DIR install libs in DIR [PREFIX/lib]
86 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
87 --incdir=DIR install includes in DIR [PREFIX/include]
88 --mandir=DIR install man page in DIR [PREFIX/share/man]
89 --enable-rpath use rpath when linking programs [USE WITH CARE]
92 --enable-gpl allow use of GPL code, the resulting libs
93 and binaries will be under GPL [no]
94 --enable-version3 upgrade (L)GPL to version 3 [no]
95 --enable-nonfree allow use of nonfree code, the resulting libs
96 and binaries will be unredistributable [no]
98 Configuration options:
99 --disable-static do not build static libraries [no]
100 --enable-shared build shared libraries [no]
101 --enable-small optimize for size instead of speed
102 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103 --enable-gray enable full grayscale support (slower color)
104 --disable-swscale-alpha disable alpha channel support in swscale
105 --disable-all disable building components, libraries and programs
108 --disable-programs do not build command line programs
109 --disable-avconv disable avconv build
110 --disable-avplay disable avplay build
111 --disable-avprobe disable avprobe build
112 --disable-avserver deprecated, does nothing
115 --disable-doc do not build documentation
116 --disable-avdevice disable libavdevice build
117 --disable-avcodec disable libavcodec build
118 --disable-avformat disable libavformat build
119 --disable-avutil disable libavutil build
120 --disable-swscale disable libswscale build
121 --disable-avfilter disable video filter support [no]
122 --disable-avresample disable libavresample build [no]
123 --disable-pthreads disable pthreads [auto]
124 --disable-w32threads disable Win32 threads [auto]
125 --disable-network disable network support [no]
126 --disable-dct disable DCT code
127 --disable-error-resilience disable error resilience code
128 --disable-lsp disable LSP code
129 --disable-lzo disable LZO decoder code
130 --disable-mdct disable MDCT code
131 --disable-rdft disable RDFT code
132 --disable-fft disable FFT code
133 --disable-faan disable floating point AAN (I)DCT code
135 Hardware accelerators:
136 --enable-d3d11va enable D3D11VA code
137 --enable-dxva2 enable DXVA2 code
138 --enable-vaapi enable VAAPI code
139 --enable-vda enable VDA code
140 --enable-vdpau enable VDPAU code
142 Individual component options:
143 --disable-everything disable all components listed below
144 --disable-encoder=NAME disable encoder NAME
145 --enable-encoder=NAME enable encoder NAME
146 --disable-encoders disable all encoders
147 --disable-decoder=NAME disable decoder NAME
148 --enable-decoder=NAME enable decoder NAME
149 --disable-decoders disable all decoders
150 --disable-hwaccel=NAME disable hwaccel NAME
151 --enable-hwaccel=NAME enable hwaccel NAME
152 --disable-hwaccels disable all hwaccels
153 --disable-muxer=NAME disable muxer NAME
154 --enable-muxer=NAME enable muxer NAME
155 --disable-muxers disable all muxers
156 --disable-demuxer=NAME disable demuxer NAME
157 --enable-demuxer=NAME enable demuxer NAME
158 --disable-demuxers disable all demuxers
159 --enable-parser=NAME enable parser NAME
160 --disable-parser=NAME disable parser NAME
161 --disable-parsers disable all parsers
162 --enable-bsf=NAME enable bitstream filter NAME
163 --disable-bsf=NAME disable bitstream filter NAME
164 --disable-bsfs disable all bitstream filters
165 --enable-protocol=NAME enable protocol NAME
166 --disable-protocol=NAME disable protocol NAME
167 --disable-protocols disable all protocols
168 --enable-indev=NAME enable input device NAME
169 --disable-indev=NAME disable input device NAME
170 --disable-indevs disable input devices
171 --enable-outdev=NAME enable output device NAME
172 --disable-outdev=NAME disable output device NAME
173 --disable-outdevs disable output devices
174 --disable-devices disable all devices
175 --enable-filter=NAME enable filter NAME
176 --disable-filter=NAME disable filter NAME
177 --disable-filters disable all filters
179 External library support:
180 --enable-avisynth enable reading of AviSynth script files [no]
181 --enable-bzlib enable bzlib [autodetect]
182 --enable-cuda enable dynamically linked CUDA [no]
183 --enable-frei0r enable frei0r video filtering
184 --enable-gnutls enable gnutls [no]
185 --enable-libbs2b enable bs2b DSP library [no]
186 --enable-libcdio enable audio CD grabbing with libcdio
187 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
189 --enable-libdcadec enable DCA decoding via libdcadec [no]
190 --enable-libfaac enable AAC encoding via libfaac [no]
191 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
192 --enable-libfreetype enable libfreetype [no]
193 --enable-libgsm enable GSM de/encoding via libgsm [no]
194 --enable-libilbc enable iLBC de/encoding via libilbc [no]
195 --enable-libkvazaar enable HEVC encoding via libkvazaar [no]
196 --enable-libmfx enable HW acceleration through libmfx
197 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
198 --enable-libnpp enable NVIDIA Performance Primitives-based code [no]
199 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
200 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
201 --enable-libopencv enable video filtering via libopencv [no]
202 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
203 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
204 --enable-libopus enable Opus de/encoding via libopus [no]
205 --enable-libpulse enable Pulseaudio input via libpulse [no]
206 --enable-librtmp enable RTMP[E] support via librtmp [no]
207 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
208 --enable-libsnappy enable Snappy compression [no]
209 --enable-libspeex enable Speex de/encoding via libspeex [no]
210 --enable-libtheora enable Theora encoding via libtheora [no]
211 --enable-libtwolame enable MP2 encoding via libtwolame [no]
212 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
213 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
214 --enable-libvorbis enable Vorbis encoding via libvorbis [no]
215 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
216 --enable-libwavpack enable wavpack encoding via libwavpack [no]
217 --enable-libwebp enable WebP encoding via libwebp [no]
218 --enable-libx264 enable H.264 encoding via x264 [no]
219 --enable-libx265 enable HEVC encoding via x265 [no]
220 --enable-libxavs enable AVS encoding via xavs [no]
221 --enable-libxcb enable X11 grabbing using XCB [no]
222 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
223 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
224 --enable-libxvid enable Xvid encoding via xvidcore,
225 native MPEG-4/Xvid encoder exists [no]
226 --enable-mmal enable decoding via MMAL [no]
227 --enable-nvenc enable encoding via NVENC [no]
228 --enable-openssl enable openssl [no]
229 --enable-x11grab enable X11 grabbing (legacy) [no]
230 --enable-zlib enable zlib [autodetect]
233 --arch=ARCH select architecture [$arch]
234 --cpu=CPU select the minimum required CPU (affects
235 instruction selection, may crash on older CPUs)
236 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
237 --enable-cross-compile assume a cross-compiler is used
238 --sysroot=PATH root of cross-build tree
239 --sysinclude=PATH location of cross-build system headers
240 --target-os=OS compiler targets OS [$target_os]
241 --target-exec=CMD command to run executables on target
242 --target-path=DIR path to view of build directory on target
243 --target-samples=DIR path to samples directory on target
244 --toolchain=NAME set tool defaults according to NAME
246 --ar=AR use archive tool AR [$ar_default]
247 --as=AS use assembler AS [$as_default]
248 --cc=CC use C compiler CC [$cc_default]
249 --objcc=OCC use ObjC compiler OCC [$cc_default]
250 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
251 --ld=LD use linker LD
252 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
253 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
254 --host-cc=HOSTCC use host C compiler HOSTCC
255 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
256 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
257 --host-ld=HOSTLD use host linker HOSTLD
258 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
259 --host-libs=HLIBS use libs HLIBS when linking for host
260 --host-os=OS compiler host OS [$target_os]
261 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
262 --extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
263 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
264 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
265 --extra-libs=ELIBS add ELIBS [$ELIBS]
266 --extra-version=STRING version string suffix []
267 --optflags=OPTFLAGS override optimization-related compiler flags
268 --build-suffix=SUFFIX library name suffix []
269 --enable-pic build position-independent code
270 --enable-thumb compile for Thumb instruction set
271 --enable-lto use link-time optimization
272 --env="ENV=override" override the environment variables
274 Advanced options (experts only):
275 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
276 --custom-allocator=NAME use a supported custom allocator
277 --disable-symver disable symbol versioning
278 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
279 --disable-safe-bitstream-reader
280 disable buffer boundary checking in bitreaders
281 (faster, but may crash)
282 --enable-memalign-hack emulate memalign, interferes with memory debuggers
283 --enable-sram allow use of on-chip SRAM
285 Optimization options (experts only):
286 --disable-asm disable all assembly optimizations
287 --disable-altivec disable AltiVec optimizations
288 --disable-vsx disable VSX optimizations
289 --disable-power8 disable POWER8 optimizations
290 --disable-amd3dnow disable 3DNow! optimizations
291 --disable-amd3dnowext disable 3DNow! extended optimizations
292 --disable-mmx disable MMX optimizations
293 --disable-mmxext disable MMXEXT optimizations
294 --disable-sse disable SSE optimizations
295 --disable-sse2 disable SSE2 optimizations
296 --disable-sse3 disable SSE3 optimizations
297 --disable-ssse3 disable SSSE3 optimizations
298 --disable-sse4 disable SSE4 optimizations
299 --disable-sse42 disable SSE4.2 optimizations
300 --disable-avx disable AVX optimizations
301 --disable-xop disable XOP optimizations
302 --disable-fma3 disable FMA3 optimizations
303 --disable-fma4 disable FMA4 optimizations
304 --disable-avx2 disable AVX2 optimizations
305 --disable-armv5te disable armv5te optimizations
306 --disable-armv6 disable armv6 optimizations
307 --disable-armv6t2 disable armv6t2 optimizations
308 --disable-vfp disable VFP optimizations
309 --disable-neon disable NEON optimizations
310 --disable-inline-asm disable use of inline assembly
311 --disable-yasm disable use of nasm/yasm assembly
313 Developer options (useful when working on Libav itself):
314 --disable-debug disable debugging symbols
315 --enable-debug=LEVEL set the debug level [$debuglevel]
316 --disable-optimizations disable compiler optimizations
317 --enable-extra-warnings enable more compiler warnings
318 --samples=PATH location of test samples for FATE, if not set use
319 \$LIBAV_SAMPLES at make invocation time.
320 --enable-neon-clobber-test check NEON registers for clobbering (should be
321 used only for debugging purposes)
322 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
323 should be used only for debugging purposes)
324 --enable-random randomly enable/disable components
326 --enable-random=LIST randomly enable/disable specific components or
327 --disable-random=LIST component groups. LIST is a comma-separated list
328 of NAME[:PROB] entries where NAME is a component
329 (group) and PROB the probability associated with
331 --random-seed=VALUE seed value for --enable/disable-random
332 --disable-valgrind-backtrace do not print a backtrace under Valgrind
333 (only applies to --disable-optimizations builds)
335 NOTE: Object files are built at the place where configure is launched.
343 echo "$@" >> $logfile
350 printf '%5s %s\n' "${i}" "${line}"
352 done < $1 >> $logfile
363 WARNINGS="${WARNINGS}WARNING: $*\n"
370 If you think configure made a mistake, make sure you are using the latest
371 version from Git. If the latest version fails, report the problem to the
372 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
374 if disabled logging; then
376 Rerun configure with logging enabled (do not use --disable-logging), and
377 include the log this produces with your report.
381 Include the log file "$logfile" produced by configure as this will help
388 # Avoid locale weirdness, besides we really just want to translate ASCII.
390 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
394 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
398 echo "$*" | sed 's/["\\]/\\\0/g'
402 v=$(echo "$1" | sed "s/'/'\\\\''/g")
403 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
408 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//'
415 eval "case $v in $pat) echo $v ;; esac"
423 eval "case $v in $pat) ;; *) echo $v ;; esac"
430 for v; do eval $m; done
436 for v; do echo ${v}${suffix}; done
451 eval : \${$var:=$value}
456 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
462 eval $(sanitize_var_name "$var")='$*'
466 eval echo \$$(sanitize_var_name "$1")
471 eval level=\${${pvar}_level:=0}
472 eval ${pvar}_${level}="\$$pvar"
473 eval ${pvar}_level=$(($level+1))
479 eval level=\${${pvar}_level:-0}
480 test $level = 0 && continue
481 eval level=$(($level-1))
482 eval $pvar="\${${pvar}_${level}}"
483 eval ${pvar}_level=$level
484 eval unset ${pvar}_${level}
506 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
512 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
518 enabled $var && continue
519 eval sel="\$${var}_select"
520 eval sgs="\$${var}_suggest"
524 enable_deep_weak $sgs
536 disabled $var && continue
545 test "${1#!}" = "$1" && op== || op=!=
546 eval test "x\$${1#!}" $op "xyes"
550 test "${1#!}" = "$1" && op== || op=!=
551 eval test "x\$${1#!}" $op "xno"
556 enabled $opt || return 1
562 disabled $opt || return 1
568 enabled $opt && return 0
574 disabled $opt && return 0
581 eval : \${$opt:=\$${opt}_default}
589 [ $var = $value ] && return 0
597 enabled ${cfg}_checking && die "Circular dependency for $cfg."
598 disabled ${cfg}_checking && continue
599 enable ${cfg}_checking
602 eval dep_all="\$${cfg}_deps"
603 eval dep_any="\$${cfg}_deps_any"
604 eval dep_sel="\$${cfg}_select"
605 eval dep_sgs="\$${cfg}_suggest"
606 eval dep_ifa="\$${cfg}_if"
607 eval dep_ifn="\$${cfg}_if_any"
609 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
610 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
611 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
613 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
614 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
615 enabled_all $dep_all || disable $cfg
616 enabled_any $dep_any || disable $cfg
617 disabled_any $dep_sel && disable $cfg
619 if enabled $cfg; then
621 enable_deep_weak $dep_sgs
624 disable ${cfg}_checking
633 for cfg in $allopts; do
634 enabled $cfg || continue
635 eval dep_extralibs="\$${cfg}_extralibs"
636 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
644 map 'eval echo "$v \${$v:-no}"' "$@" |
645 awk "BEGIN { split(\"$files\", files) }
647 c = \"$pfx\" toupper(\$1);
653 if (file ~ /\\.h\$/) {
654 printf(\"#define %s %d\\n\", c, v) >>file;
655 } else if (file ~ /\\.asm\$/) {
656 printf(\"%%define %s %d\\n\", c, v) >>file;
657 } else if (file ~ /\\.mak\$/) {
658 n = -v ? \"\" : \"!\";
659 printf(\"%s%s=yes\\n\", n, c) >>file;
669 enabled $v && printf "%s\n" ${v%$suf};
676 eval "$var=\"\$$var $*\""
682 eval "$var=\"$* \$$var\""
688 for tok in $(eval echo \$$var); do
689 uniq_list="$(filter_out $tok $uniq_list) $tok"
691 eval "$var=\"${uniq_list}\""
699 append CFLAGS $($cflags_filter "$@")
703 append ASFLAGS $($asflags_filter "$@")
707 append OBJCFLAGS $($objcflags_filter "$@")
711 append LDFLAGS $($ldflags_filter "$@")
715 append LDEXEFLAGS $($ldflags_filter "$@")
719 append STRIPFLAGS "$@"
723 prepend extralibs $($ldflags_filter "$@")
727 append host_cppflags "$@"
731 append host_cflags $($host_cflags_filter "$@")
735 append host_ldflags $($host_ldflags_filter "$@")
739 append compat_objs $1
741 map 'add_cppflags -D$v' "$@"
746 "$@" >> $logfile 2>&1
750 eval printf '%s\\n' $CC_O
754 eval printf '%s\\n' $CC_E
761 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
768 check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
775 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
779 eval printf '%s\\n' $AS_O
786 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
790 log check_inline_asm "$@"
795 check_cc "$@" <<EOF && enable $name
796 void foo(void){ __asm__ volatile($code); }
802 check_inline_asm ${1}_inline "\"$2\""
803 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
811 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
815 eval printf '%s\\n' $LD_O
820 flags=$(filter_out '-l*' "$@")
821 libs=$(filter '-l*' "$@")
822 check_cc $($cflags_filter $flags) || return
823 flags=$($ldflags_filter $flags)
824 libs=$($ldflags_filter $libs)
825 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
830 test "${hdr%.h}" = "${hdr}" &&
831 echo "#include $hdr" ||
832 echo "#include <$hdr>"
842 for hdr in $headers; do
845 echo "int main(void) { $code; return 0; }"
846 } | check_$check "$@"
850 log check_cppflags "$@"
851 check_cc "$@" <<EOF && append CPPFLAGS "$@"
858 set -- $($cflags_filter "$@")
865 log check_cflags "$@"
866 test_cflags "$@" && add_cflags "$@"
871 set -- $($cflags_filter "$@")
872 check_objcc "$@" <<EOF
878 log check_cflags "$@"
879 test_objcflags "$@" && add_objcflags "$@"
883 log test_ldflags "$@"
885 int main(void){ return 0; }
890 log check_ldflags "$@"
891 test_ldflags "$@" && add_ldflags "$@"
895 log test_stripflags "$@"
896 # call check_cc to get a fresh TMPO
898 int main(void) { return 0; }
900 check_cmd $strip $STRIPFLAGS "$@" $TMPO
904 log check_stripflags "$@"
905 test_stripflags "$@" && add_stripflags "$@"
909 log check_header "$@"
913 check_cpp "$@" <<EOF && enable_safe $header
924 check_ld "$@" <<EOF && enable $func
926 int main(void){ $func(); }
931 log check_mathfunc "$@"
935 test $narg = 2 && args="f, g" || args="f"
937 check_ld "$@" <<EOF && enable $func
939 float foo(float f, float g) { return $func($args); }
940 int main(void){ return 0; }
944 check_func_headers(){
945 log check_func_headers "$@"
950 for hdr in $headers; do
953 for func in $funcs; do
954 echo "long check_$func(void) { return (long) $func; }"
956 echo "int main(void) { return 0; }"
957 } | check_ld "$@" && enable $funcs && enable_safe $headers
960 check_cpp_condition(){
961 log check_cpp_condition "$@"
968 #error "unsatisfied condition: $condition"
978 check_header $header && check_func $func "$@" && add_extralibs "$@"
986 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
990 log check_pkg_config "$@"
995 check_cmd $pkg_config --exists --print-errors $pkg || return
996 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
997 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
998 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
999 set_safe "${pkg}_cflags" $pkg_cflags &&
1000 set_safe "${pkg}_libs" $pkg_libs
1004 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1010 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1011 # are safe but may not be available everywhere. Thus we use
1012 # raise(SIGTERM) instead. The check is run in a subshell so we
1013 # can redirect the "Terminated" message from the shell. SIGBUS
1014 # is not defined by standard C so it is used conditionally.
1016 (check_exec "$@") >> $logfile 2>&1 <<EOF
1018 static void sighandler(int sig){
1024 int (*func_ptr)(void) = foo;
1026 signal(SIGILL, sighandler);
1027 signal(SIGFPE, sighandler);
1028 signal(SIGSEGV, sighandler);
1030 signal(SIGBUS, sighandler);
1042 disable_safe "$type"
1043 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1047 log check_struct "$@"
1052 disable_safe "${struct}_${member}"
1053 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1054 enable_safe "${struct}_${member}"
1058 log check_builtin "$@"
1064 check_code ld "$headers" "$builtin" "$@" && enable "$name"
1067 check_compile_assert(){
1068 log check_compile_assert "$@"
1074 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1082 check_lib $header $func "$@" || die "ERROR: $name not found"
1090 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1093 require_pkg_config(){
1095 check_pkg_config "$@" || die "ERROR: $pkg not found"
1096 add_cflags $(get_safe "${pkg}_cflags")
1097 add_extralibs $(get_safe "${pkg}_libs")
1101 eval printf '%s\\n' $HOSTCC_E
1105 eval printf '%s\\n' $HOSTCC_O
1109 log check_host_cc "$@"
1112 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1116 log check_host_cpp "$@"
1119 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1122 check_host_cppflags(){
1123 log check_host_cppflags "$@"
1124 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1129 check_host_cflags(){
1130 log check_host_cflags "$@"
1131 set -- $($host_cflags_filter "$@")
1132 check_host_cc "$@" <<EOF && append host_cflags "$@"
1137 check_host_cpp_condition(){
1138 log check_host_cpp_condition "$@"
1142 check_host_cpp "$@" <<EOF
1145 #error "unsatisfied condition: $condition"
1153 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1157 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1158 mkdir -p "$(dirname $2)"
1162 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1163 # system-dependent things.
1165 AVCODEC_COMPONENTS="
1173 AVDEVICE_COMPONENTS="
1177 AVFILTER_COMPONENTS="
1180 AVFORMAT_COMPONENTS="
1186 AVRESAMPLE_COMPONENTS=""
1187 AVUTIL_COMPONENTS=""
1191 $AVDEVICE_COMPONENTS
1192 $AVFILTER_COMPONENTS
1193 $AVFORMAT_COMPONENTS
1194 $AVRESAMPLE_COMPONENTS
1200 filter_audio_example
1204 transcode_aac_example
1207 EXTERNAL_LIBRARY_LIST="
1264 safe_bitstream_reader
1318 $EXTERNAL_LIBRARY_LIST
1383 ARCH_EXT_LIST_X86_SIMD="
1411 $ARCH_EXT_LIST_X86_SIMD
1416 ARCH_EXT_LIST_MIPS="
1450 sync_val_compare_and_swap
1464 AVFoundation_AVFoundation_h
1469 cdio_paranoia_paranoia_h
1470 dev_bktr_ioctl_bt848_h
1471 dev_bktr_ioctl_meteor_h
1473 dev_video_bktr_ioctl_bt848_h
1474 dev_video_meteor_ioctl_meteor_h
1482 machine_ioctl_bt848_h
1483 machine_ioctl_meteor_h
1547 GetProcessAffinityMask
1548 GetProcessMemoryInfo
1551 GetSystemTimeAsFileTime
1556 jack_port_get_latency_range
1568 SetConsoleTextAttribute
1579 TOOLCHAIN_FEATURES="
1600 CONDITION_VARIABLE_Ptr
1603 struct_group_source_req
1604 struct_ip_mreq_source
1607 struct_rusage_ru_maxrss
1609 struct_sockaddr_sa_len
1610 struct_sockaddr_storage
1611 struct_v4l2_frmivalenum_discrete
1616 $(add_suffix _external $ARCH_EXT_LIST)
1617 $(add_suffix _inline $ARCH_EXT_LIST)
1644 # options emitted with CONFIG_ prefix but not available on the command line
1789 # code dependency declarations
1791 # architecture extensions
1796 armv8_deps="aarch64"
1797 neon_deps_any="aarch64 arm"
1798 intrinsics_neon_deps="neon"
1799 vfp_deps_any="aarch64 arm"
1802 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1810 x86_64_select="i686"
1811 x86_64_suggest="fast_cmov"
1814 amd3dnowext_deps="amd3dnow"
1830 mmx_external_deps="yasm"
1831 mmx_inline_deps="inline_asm"
1832 mmx_suggest="mmx_external mmx_inline"
1834 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1835 eval dep=\$${ext}_deps
1836 eval ${ext}_external_deps='"${dep}_external"'
1837 eval ${ext}_inline_deps='"${dep}_inline"'
1838 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1841 aligned_stack_if_any="aarch64 ppc x86"
1842 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1843 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1844 fast_unaligned_if_any="aarch64 ppc x86"
1845 simd_align_16_if_any="altivec neon sse"
1847 # system capabilities
1848 symver_if_any="symver_asm_label symver_gnu_asm"
1849 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1852 atomics_gcc_if="sync_val_compare_and_swap"
1853 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1854 atomics_win32_if="MemoryBarrier"
1855 atomics_native_if_any="$ATOMICS_LIST"
1856 w32threads_deps="atomics_native"
1857 threads_if_any="$THREADS_LIST"
1861 dirac_parse_select="golomb"
1862 error_resilience_select="me_cmp"
1863 faandct_deps="faan fdctdsp"
1864 faanidct_deps="faan idctdsp"
1865 h264dsp_select="startcode"
1868 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1869 mpeg_er_select="error_resilience"
1870 mpegaudio_select="mpegaudiodsp"
1871 mpegaudiodsp_select="dct"
1872 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1873 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1874 nvenc_deps_any="dlopen LoadLibrary"
1875 nvenc_extralibs='$ldl'
1878 vc1dsp_select="h264chroma qpeldsp startcode"
1880 # decoders / encoders
1881 aac_decoder_select="imdct15 mdct sinewin"
1882 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1883 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1884 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1885 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1886 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1887 adpcm_g722_decoder_select="g722dsp"
1888 adpcm_g722_encoder_select="g722dsp"
1889 aic_decoder_select="golomb idctdsp"
1890 alac_encoder_select="lpc"
1891 als_decoder_select="bswapdsp"
1892 amrnb_decoder_select="lsp"
1893 amrwb_decoder_select="lsp"
1894 amv_decoder_select="sp5x_decoder"
1895 ape_decoder_select="bswapdsp"
1896 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1897 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1898 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1899 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1900 atrac1_decoder_select="mdct sinewin"
1901 atrac3_decoder_select="mdct"
1902 atrac3p_decoder_select="mdct sinewin"
1903 bink_decoder_select="blockdsp hpeldsp"
1904 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1905 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1906 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1907 cllc_decoder_select="bswapdsp"
1908 comfortnoise_encoder_select="lpc"
1909 cook_decoder_select="audiodsp mdct sinewin"
1910 cscd_decoder_select="lzo"
1911 cscd_decoder_suggest="zlib"
1912 dca_decoder_select="fmtconvert mdct"
1913 dds_decoder_select="texturedsp"
1914 dnxhd_decoder_select="blockdsp idctdsp"
1915 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1916 dvvideo_decoder_select="dvprofile idctdsp"
1917 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1918 dxa_decoder_deps="zlib"
1919 dxv_decoder_select="lzf texturedsp"
1920 eac3_decoder_select="ac3_decoder"
1921 eac3_encoder_select="ac3_encoder"
1922 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1923 eatgq_decoder_select="aandcttables idctdsp"
1924 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
1925 exr_decoder_deps="zlib"
1926 ffv1_decoder_select="golomb rangecoder"
1927 ffv1_encoder_select="rangecoder"
1928 ffvhuff_decoder_select="huffyuv_decoder"
1929 ffvhuff_encoder_select="huffyuv_encoder"
1930 fic_decoder_select="golomb"
1931 flac_decoder_select="flacdsp golomb"
1932 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1933 flashsv_decoder_deps="zlib"
1934 flashsv_encoder_deps="zlib"
1935 flashsv2_decoder_deps="zlib"
1936 flv_decoder_select="h263_decoder"
1937 flv_encoder_select="h263_encoder"
1938 fourxm_decoder_select="blockdsp bswapdsp"
1939 fraps_decoder_select="bswapdsp huffman"
1940 g2m_decoder_deps="zlib"
1941 g2m_decoder_select="blockdsp idctdsp jpegtables"
1942 h261_decoder_select="mpeg_er mpegvideo"
1943 h261_encoder_select="aandcttables mpegvideoenc"
1944 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1945 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1946 h263i_decoder_select="h263_decoder"
1947 h263p_encoder_select="h263_encoder"
1948 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
1949 h264_decoder_suggest="error_resilience"
1950 h264_nvenc_encoder_deps="nvenc"
1951 h264_qsv_decoder_deps="libmfx"
1952 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1953 h264_qsv_encoder_deps="libmfx"
1954 h264_qsv_encoder_select="qsvenc"
1955 hap_decoder_select="snappy texturedsp"
1956 hap_encoder_deps="libsnappy"
1957 hap_encoder_select="texturedspenc"
1958 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1959 hevc_nvenc_encoder_deps="nvenc"
1960 hevc_qsv_encoder_deps="libmfx"
1961 hevc_qsv_decoder_deps="libmfx"
1962 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
1963 hevc_qsv_encoder_select="qsvenc"
1964 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1965 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1966 iac_decoder_select="imc_decoder"
1967 imc_decoder_select="bswapdsp fft mdct sinewin"
1968 indeo3_decoder_select="hpeldsp"
1969 indeo4_decoder_select="ividsp"
1970 indeo5_decoder_select="ividsp"
1971 interplay_video_decoder_select="hpeldsp"
1972 jpegls_decoder_select="golomb mjpeg_decoder"
1973 jpegls_encoder_select="golomb"
1974 jv_decoder_select="blockdsp"
1975 lagarith_decoder_select="huffyuvdsp"
1976 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1977 loco_decoder_select="golomb"
1978 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1979 metasound_decoder_select="lsp mdct sinewin"
1980 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1981 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1982 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1983 mjpegb_decoder_select="mjpeg_decoder"
1984 mlp_decoder_select="mlp_parser"
1985 motionpixels_decoder_select="bswapdsp"
1986 mp1_decoder_select="mpegaudio"
1987 mp1float_decoder_select="mpegaudio"
1988 mp2_decoder_select="mpegaudio"
1989 mp2float_decoder_select="mpegaudio"
1990 mp3_decoder_select="mpegaudio"
1991 mp3adu_decoder_select="mpegaudio"
1992 mp3adufloat_decoder_select="mpegaudio"
1993 mp3float_decoder_select="mpegaudio"
1994 mp3on4_decoder_select="mpegaudio"
1995 mp3on4float_decoder_select="mpegaudio"
1996 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1997 mpc8_decoder_select="mpegaudiodsp"
1998 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1999 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2000 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2001 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2002 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2003 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2004 mpeg2_qsv_decoder_deps="libmfx"
2005 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2006 mpeg2_qsv_encoder_deps="libmfx"
2007 mpeg2_qsv_encoder_select="qsvenc"
2008 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2009 mpeg4_encoder_select="h263_encoder"
2010 msa1_decoder_select="mss34dsp"
2011 msmpeg4v1_decoder_select="h263_decoder"
2012 msmpeg4v2_decoder_select="h263_decoder"
2013 msmpeg4v2_encoder_select="h263_encoder"
2014 msmpeg4v3_decoder_select="h263_decoder"
2015 msmpeg4v3_encoder_select="h263_encoder"
2016 mss2_decoder_select="error_resilience mpeg_er mpegvideo vc1_decoder"
2017 mts2_decoder_select="mss34dsp"
2018 mxpeg_decoder_select="mjpeg_decoder"
2019 nellymoser_decoder_select="mdct sinewin"
2020 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2021 nuv_decoder_select="idctdsp lzo"
2022 nvenc_h264_encoder_deps="nvenc"
2023 nvenc_hevc_encoder_deps="nvenc"
2024 on2avc_decoder_select="mdct"
2025 opus_decoder_deps="avresample"
2026 opus_decoder_select="imdct15"
2027 png_decoder_deps="zlib"
2028 png_encoder_deps="zlib"
2029 png_encoder_select="huffyuvencdsp"
2030 prores_decoder_select="idctdsp"
2031 prores_encoder_select="fdctdsp"
2032 qcelp_decoder_select="lsp"
2033 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2034 ra_144_encoder_select="audio_frame_queue lpc"
2035 ralf_decoder_select="golomb"
2036 rscc_decoder_deps="zlib"
2037 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2038 rv10_encoder_select="h263_encoder"
2039 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2040 rv20_encoder_select="h263_encoder"
2041 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2042 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2043 screenpresso_decoder_deps="zlib"
2044 shorten_decoder_select="golomb"
2045 sipr_decoder_select="lsp"
2046 sp5x_decoder_select="mjpeg_decoder"
2047 svq1_decoder_select="hpeldsp"
2048 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2049 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2050 svq3_decoder_suggest="zlib"
2051 tak_decoder_select="audiodsp"
2052 tdsc_decoder_deps="zlib"
2053 tdsc_decoder_select="mjpeg_decoder"
2054 theora_decoder_select="vp3_decoder"
2055 thp_decoder_select="mjpeg_decoder"
2056 tiff_decoder_suggest="zlib"
2057 tiff_encoder_suggest="zlib"
2058 truehd_decoder_select="mlp_decoder"
2059 truemotion2_decoder_select="bswapdsp"
2060 truespeech_decoder_select="bswapdsp"
2061 tscc_decoder_deps="zlib"
2062 txd_decoder_select="texturedsp"
2063 twinvq_decoder_select="mdct lsp sinewin"
2064 utvideo_decoder_select="bswapdsp"
2065 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2066 vble_decoder_select="huffyuvdsp"
2067 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2068 vc1image_decoder_select="vc1_decoder"
2069 vorbis_decoder_select="mdct"
2070 vorbis_encoder_select="mdct"
2071 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2072 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2073 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2074 vp6a_decoder_select="vp6_decoder"
2075 vp6f_decoder_select="vp6_decoder"
2076 vp7_decoder_select="h264pred videodsp vp8dsp"
2077 vp8_decoder_select="h264pred videodsp vp8dsp"
2078 vp9_decoder_select="videodsp"
2079 webp_decoder_select="vp8_decoder"
2080 wmapro_decoder_select="mdct sinewin wma_freqs"
2081 wmav1_decoder_select="mdct sinewin wma_freqs"
2082 wmav1_encoder_select="mdct sinewin wma_freqs"
2083 wmav2_decoder_select="mdct sinewin wma_freqs"
2084 wmav2_encoder_select="mdct sinewin wma_freqs"
2085 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2086 wmv1_decoder_select="h263_decoder"
2087 wmv1_encoder_select="h263_encoder"
2088 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2089 wmv2_encoder_select="h263_encoder wmv2dsp"
2090 wmv3_decoder_select="vc1_decoder"
2091 wmv3image_decoder_select="wmv3_decoder"
2092 zerocodec_decoder_deps="zlib"
2093 zlib_decoder_deps="zlib"
2094 zlib_encoder_deps="zlib"
2095 zmbv_decoder_deps="zlib"
2096 zmbv_encoder_deps="zlib"
2098 # hardware accelerators
2099 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2100 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2101 vaapi_deps="va_va_h"
2102 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2103 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2104 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2106 h263_vaapi_hwaccel_deps="vaapi"
2107 h263_vaapi_hwaccel_select="h263_decoder"
2108 h264_d3d11va_hwaccel_deps="d3d11va"
2109 h264_d3d11va_hwaccel_select="h264_decoder"
2110 h264_dxva2_hwaccel_deps="dxva2"
2111 h264_dxva2_hwaccel_select="h264_decoder"
2112 h264_mmal_decoder_deps="mmal"
2113 h264_mmal_hwaccel_deps="mmal"
2114 h264_mmal_decoder_select="h264_decoder"
2115 h264_mmal_encoder_deps="mmal"
2116 h264_qsv_hwaccel_deps="libmfx"
2117 h264_vaapi_hwaccel_deps="vaapi"
2118 h264_vaapi_hwaccel_select="h264_decoder"
2119 h264_vda_hwaccel_deps="vda"
2120 h264_vda_hwaccel_select="h264_decoder"
2121 h264_vda_old_hwaccel_deps="vda"
2122 h264_vda_old_hwaccel_select="h264_decoder"
2123 h264_vdpau_hwaccel_deps="vdpau"
2124 h264_vdpau_hwaccel_select="h264_decoder"
2125 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2126 hevc_d3d11va_hwaccel_select="hevc_decoder"
2127 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2128 hevc_dxva2_hwaccel_select="hevc_decoder"
2129 hevc_qsv_hwaccel_deps="libmfx"
2130 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2131 hevc_vdpau_hwaccel_select="hevc_decoder"
2132 mpeg1_vdpau_hwaccel_deps="vdpau"
2133 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2134 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2135 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2136 mpeg2_dxva2_hwaccel_deps="dxva2"
2137 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2138 mpeg2_qsv_hwaccel_deps="libmfx"
2139 mpeg2_vaapi_hwaccel_deps="vaapi"
2140 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2141 mpeg2_vdpau_hwaccel_deps="vdpau"
2142 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2143 mpeg4_vaapi_hwaccel_deps="vaapi"
2144 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2145 mpeg4_vdpau_hwaccel_deps="vdpau"
2146 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2147 vc1_d3d11va_hwaccel_deps="d3d11va"
2148 vc1_d3d11va_hwaccel_select="vc1_decoder"
2149 vc1_dxva2_hwaccel_deps="dxva2"
2150 vc1_dxva2_hwaccel_select="vc1_decoder"
2151 vc1_vaapi_hwaccel_deps="vaapi"
2152 vc1_vaapi_hwaccel_select="vc1_decoder"
2153 vc1_vdpau_hwaccel_deps="vdpau"
2154 vc1_vdpau_hwaccel_select="vc1_decoder"
2155 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2156 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2157 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2158 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2161 h264_parser_select="h264_decoder"
2162 hevc_parser_select="golomb"
2163 mpegvideo_parser_select="mpegvideo"
2164 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2165 vc1_parser_select="vc1dsp"
2168 mjpeg2jpeg_bsf_select="jpegtables"
2170 # external libraries
2171 libdcadec_decoder_deps="libdcadec"
2172 libfaac_encoder_deps="libfaac"
2173 libfaac_encoder_select="audio_frame_queue"
2174 libfdk_aac_decoder_deps="libfdk_aac"
2175 libfdk_aac_encoder_deps="libfdk_aac"
2176 libfdk_aac_encoder_select="audio_frame_queue"
2177 libgsm_decoder_deps="libgsm"
2178 libgsm_encoder_deps="libgsm"
2179 libgsm_ms_decoder_deps="libgsm"
2180 libgsm_ms_encoder_deps="libgsm"
2181 libilbc_decoder_deps="libilbc"
2182 libilbc_encoder_deps="libilbc"
2183 libkvazaar_encoder_deps="libkvazaar"
2184 libmp3lame_encoder_deps="libmp3lame"
2185 libmp3lame_encoder_select="audio_frame_queue"
2186 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2187 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2188 libopencore_amrnb_encoder_select="audio_frame_queue"
2189 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2190 libopenh264_encoder_deps="libopenh264"
2191 libopenjpeg_decoder_deps="libopenjpeg"
2192 libopenjpeg_encoder_deps="libopenjpeg"
2193 libopus_decoder_deps="libopus"
2194 libopus_encoder_deps="libopus"
2195 libopus_encoder_select="audio_frame_queue"
2196 libschroedinger_decoder_deps="libschroedinger"
2197 libschroedinger_encoder_deps="libschroedinger"
2198 libspeex_decoder_deps="libspeex"
2199 libspeex_encoder_deps="libspeex"
2200 libspeex_encoder_select="audio_frame_queue"
2201 libtheora_encoder_deps="libtheora"
2202 libtwolame_encoder_deps="libtwolame"
2203 libvo_aacenc_encoder_deps="libvo_aacenc"
2204 libvo_aacenc_encoder_select="audio_frame_queue"
2205 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2206 libvorbis_encoder_deps="libvorbis"
2207 libvorbis_encoder_select="audio_frame_queue"
2208 libvpx_vp8_decoder_deps="libvpx"
2209 libvpx_vp8_encoder_deps="libvpx"
2210 libvpx_vp9_decoder_deps="libvpx"
2211 libvpx_vp9_encoder_deps="libvpx"
2212 libwavpack_encoder_deps="libwavpack"
2213 libwebp_encoder_deps="libwebp"
2214 libx262_encoder_deps="libx262"
2215 libx264_encoder_deps="libx264"
2216 libx265_encoder_deps="libx265"
2217 libxavs_encoder_deps="libxavs"
2218 libxvid_encoder_deps="libxvid"
2221 ac3_demuxer_select="ac3_parser"
2222 asf_demuxer_select="riffdec"
2223 asf_muxer_select="riffenc"
2224 asf_stream_muxer_select="asf_muxer"
2225 avi_demuxer_select="iso_media riffdec"
2226 avi_muxer_select="riffenc"
2227 avisynth_demuxer_deps="avisynth"
2228 avisynth_demuxer_select="riffdec"
2229 caf_demuxer_select="iso_media riffdec"
2230 dash_muxer_select="mp4_muxer"
2231 dirac_demuxer_select="dirac_parser"
2232 dv_demuxer_select="dvprofile"
2233 dv_muxer_select="dvprofile"
2234 dxa_demuxer_select="riffdec"
2235 eac3_demuxer_select="ac3_parser"
2236 f4v_muxer_select="mov_muxer"
2237 flac_demuxer_select="flac_parser"
2238 hds_muxer_select="flv_muxer"
2239 hls_muxer_select="mpegts_muxer"
2240 ipod_muxer_select="mov_muxer"
2241 ismv_muxer_select="mov_muxer"
2242 matroska_audio_muxer_select="matroska_muxer"
2243 matroska_demuxer_select="iso_media riffdec"
2244 matroska_demuxer_suggest="bzlib lzo zlib"
2245 matroska_muxer_select="iso_media riffenc"
2246 mmf_muxer_select="riffenc"
2247 mov_demuxer_select="iso_media riffdec"
2248 mov_demuxer_suggest="zlib"
2249 mov_muxer_select="iso_media riffenc rtpenc_chain"
2250 mp3_demuxer_select="mpegaudio_parser"
2251 mp4_muxer_select="mov_muxer"
2252 mpegts_demuxer_select="iso_media"
2253 mpegts_muxer_select="adts_muxer latm_muxer"
2254 mpegtsraw_demuxer_select="mpegts_demuxer"
2255 mxf_d10_muxer_select="mxf_muxer"
2256 nut_muxer_select="riffenc"
2257 nuv_demuxer_select="riffdec"
2258 oga_muxer_select="ogg_muxer"
2259 ogg_demuxer_select="dirac_parse"
2260 opus_muxer_select="ogg_muxer"
2261 psp_muxer_select="mov_muxer"
2262 rtp_demuxer_select="sdp_demuxer"
2263 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2264 rtsp_demuxer_select="http_protocol rtpdec"
2265 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2266 sap_demuxer_select="sdp_demuxer"
2267 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2268 sdp_demuxer_select="rtpdec"
2269 smoothstreaming_muxer_select="ismv_muxer"
2270 spdif_muxer_select="aac_parser"
2271 spx_muxer_select="ogg_muxer"
2272 swf_demuxer_suggest="zlib"
2273 tak_demuxer_select="tak_parser"
2274 tg2_muxer_select="mov_muxer"
2275 tgp_muxer_select="mov_muxer"
2276 w64_demuxer_select="wav_demuxer"
2277 wav_demuxer_select="riffdec"
2278 wav_muxer_select="riffenc"
2279 webm_muxer_select="iso_media riffenc"
2280 webm_muxer_suggest="libopus_encoder libvorbis_encoder libvpx_vp8_encoder libvpx_vp9_encoder"
2281 wtv_demuxer_select="mpegts_demuxer riffdec"
2282 xmv_demuxer_select="riffdec"
2283 xwma_demuxer_select="riffdec"
2286 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2287 alsa_outdev_deps="alsa_asoundlib_h"
2288 avfoundation_indev_deps="AVFoundation_AVFoundation_h"
2289 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2290 dv1394_indev_deps="dv1394"
2291 dv1394_indev_select="dv_demuxer"
2292 fbdev_indev_deps="linux_fb_h"
2293 jack_indev_deps="jack_jack_h pthreads"
2294 libcdio_indev_deps="libcdio"
2295 libdc1394_indev_deps="libdc1394"
2296 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2297 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2298 pulse_indev_deps="libpulse"
2299 sndio_indev_deps="sndio_h"
2300 sndio_outdev_deps="sndio_h"
2301 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2302 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2303 vfwcap_indev_extralibs="-lavicap32"
2304 x11grab_indev_deps="x11grab"
2305 x11grab_xcb_indev_deps="libxcb"
2308 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2309 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2310 ffrtmpcrypt_protocol_select="tcp_protocol"
2311 ffrtmphttp_protocol_deps="!librtmp_protocol"
2312 ffrtmphttp_protocol_select="http_protocol"
2313 gopher_protocol_select="network"
2314 http_protocol_select="tcp_protocol"
2315 httpproxy_protocol_select="tcp_protocol"
2316 https_protocol_select="tls_protocol"
2317 icecast_protocol_select="http_protocol"
2318 librtmp_protocol_deps="librtmp"
2319 librtmpe_protocol_deps="librtmp"
2320 librtmps_protocol_deps="librtmp"
2321 librtmpt_protocol_deps="librtmp"
2322 librtmpte_protocol_deps="librtmp"
2323 mmsh_protocol_select="http_protocol"
2324 mmst_protocol_select="network"
2325 rtmp_protocol_deps="!librtmp_protocol"
2326 rtmp_protocol_select="tcp_protocol"
2327 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2328 rtmps_protocol_deps="!librtmp_protocol"
2329 rtmps_protocol_select="tls_protocol"
2330 rtmpt_protocol_select="ffrtmphttp_protocol"
2331 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2332 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2333 rtp_protocol_select="udp_protocol"
2334 sctp_protocol_deps="struct_sctp_event_subscribe"
2335 sctp_protocol_select="network"
2336 srtp_protocol_select="rtp_protocol srtp"
2337 tcp_protocol_select="network"
2338 tls_gnutls_protocol_deps="gnutls"
2339 tls_gnutls_protocol_select="tcp_protocol"
2340 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2341 tls_openssl_protocol_select="tcp_protocol"
2342 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2343 udp_protocol_select="network"
2344 unix_protocol_deps="sys_un_h"
2345 unix_protocol_select="network"
2348 blackframe_filter_deps="gpl"
2349 boxblur_filter_deps="gpl"
2350 bs2b_filter_deps="libbs2b"
2351 cropdetect_filter_deps="gpl"
2352 delogo_filter_deps="gpl"
2353 drawtext_filter_deps="libfreetype"
2354 frei0r_filter_deps="frei0r dlopen"
2355 frei0r_filter_extralibs='$ldl'
2356 frei0r_src_filter_deps="frei0r dlopen"
2357 frei0r_src_filter_extralibs='$ldl'
2358 hqdn3d_filter_deps="gpl"
2359 hwupload_cuda_filter_deps="cuda"
2360 interlace_filter_deps="gpl"
2361 ocv_filter_deps="libopencv"
2362 resample_filter_deps="avresample"
2363 scale_filter_deps="swscale"
2364 scale_npp_filter_deps="cuda libnpp"
2365 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2368 avcodec_example_deps="avcodec avutil"
2369 filter_audio_example_deps="avfilter avutil"
2370 metadata_example_deps="avformat avutil"
2371 output_example_deps="avcodec avformat avutil swscale"
2372 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2373 transcode_aac_example_deps="avcodec avformat avresample"
2375 # libraries, in linking order
2376 avcodec_deps="avutil"
2377 avdevice_deps="avformat avcodec avutil"
2378 avfilter_deps="avutil"
2379 avformat_deps="avcodec avutil"
2380 avresample_deps="avutil"
2381 swscale_deps="avutil"
2384 avconv_deps="avcodec avfilter avformat avresample swscale"
2385 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2386 fps_filter null_filter resample_filter scale_filter
2387 setpts_filter trim_filter"
2388 avplay_deps="avcodec avfilter avformat avresample sdl"
2389 avplay_libs='$sdl_libs'
2390 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2391 avprobe_deps="avcodec avformat"
2395 texi2html_deps="doc"
2397 # default parameters
2399 logfile="config.log"
2401 # installation paths
2402 prefix_default="/usr/local"
2403 bindir_default='${prefix}/bin'
2404 datadir_default='${prefix}/share/avconv'
2405 docdir_default='${prefix}/share/doc/libav'
2406 incdir_default='${prefix}/include'
2407 libdir_default='${prefix}/lib'
2408 mandir_default='${prefix}/share/man'
2409 shlibdir_default="$libdir_default"
2414 host_cc_default="gcc"
2419 pkg_config_default=pkg-config
2425 arch_default=$(uname -m)
2430 target_os_default=$(tolower $(uname -s))
2431 host_os=$target_os_default
2433 # configurable options
2434 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2439 enable faan faandct faanidct
2440 enable optimizations
2441 enable safe_bitstream_reader
2443 enable swscale_alpha
2444 enable valgrind_backtrace
2446 # By default, enable only those hwaccels that have no external dependencies.
2447 enable d3d11va dxva2 vda vdpau
2450 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2453 FULLNAME='$(NAME)$(BUILDSUF)'
2454 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2457 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2458 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2459 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2460 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2461 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2462 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2485 host_cflags_filter=echo
2486 host_ldflags_filter=echo
2488 target_path='$(CURDIR)'
2490 # since the object filename is not given with the -MM flag, the compiler
2491 # is only able to print the basename, and we must add the path ourselves
2492 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2496 if test -f configure; then
2499 source_path=$(cd $(dirname "$0"); pwd)
2500 echo "$source_path" | grep -q '[[:blank:]]' &&
2501 die "Out of tree builds are impossible with whitespace in source path."
2502 test -e "$source_path/config.h" &&
2503 die "Out of tree builds are impossible with config.h in source dir."
2510 LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2516 file=$source_path/$3
2517 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2520 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2521 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2522 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2523 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2524 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2525 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2526 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2527 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2528 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2530 find_things_extern(){
2533 file=$source_path/$3
2534 sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2537 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2538 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2554 for n in $COMPONENT_LIST; do
2555 v=$(toupper ${n%s})_LIST
2557 eval ${n}_if_any="\$$v"
2560 enable $ARCH_EXT_LIST
2563 echo "Unknown option \"$1\"."
2564 echo "See $0 --help for available options."
2569 printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2575 echo $* | sed s/$suffix//g | print_3_columns
2587 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2588 echo "prob ${prob:-0.5}"
2596 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2597 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2606 --extra-ldexeflags=*)
2607 add_ldexeflags $optval
2610 add_extralibs $optval
2613 disable $INDEV_LIST $OUTDEV_LIST
2616 debuglevel="$optval"
2619 disable $PROGRAM_LIST
2621 --disable-everything)
2622 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2625 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2626 disable $LIBRARY_LIST $PROGRAM_LIST doc
2628 --enable-random|--disable-random)
2629 action=${opt%%-random}
2630 do_random ${action#--} $COMPONENT_LIST
2632 --enable-random=*|--disable-random=*)
2633 action=${opt%%-random=*}
2634 do_random ${action#--} $optval
2636 --enable-*=*|--disable-*=*)
2637 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2638 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2639 eval list=\$$(toupper $thing)_LIST
2640 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2641 $action $(filter "$name" $list)
2643 --enable-avserver|--disable-avserver*)
2644 warn "avserver has been removed, the ${opt} option is only"\
2645 "provided for compatibility and will be removed in the future"
2647 --enable-?*|--disable-?*)
2648 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2649 if is_in $option $COMPONENT_LIST; then
2650 test $action = disable && action=unset
2651 eval $action \$$(toupper ${option%s})_LIST
2652 elif is_in $option $CMDLINE_SELECT; then
2659 NAME="${opt#--list-}"
2660 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2662 eval show_list $NAME \$$(toupper $NAME)_LIST
2664 --help|-h) show_help
2667 optname="${opt%%=*}"
2668 optname="${optname#--}"
2669 optname=$(echo "$optname" | sed 's/-/_/g')
2670 if is_in $optname $CMDLINE_SET; then
2671 eval $optname='$optval'
2672 elif is_in $optname $CMDLINE_APPEND; then
2673 append $optname "$optval"
2685 disabled logging && logfile=/dev/null
2687 # Disable all the library-specific components if the library itself
2688 # is disabled, see AVCODEC_LIST and following _LIST variables.
2690 disable_components(){
2691 disabled ${1} && disable $(
2692 eval components="\$$(toupper ${1})_COMPONENTS"
2693 map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2697 map 'disable_components $v' $LIBRARY_LIST
2699 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2702 case "$toolchain" in
2704 cc_default="${toolchain%-asan}"
2705 add_cflags -fsanitize=address
2706 add_ldflags -fsanitize=address
2709 cc_default="${toolchain%-msan}"
2710 add_cflags -fsanitize=memory -fsanitize-memory-track-origins
2711 add_ldflags -fsanitize=memory
2714 cc_default="${toolchain%-tsan}"
2715 add_cflags -fsanitize=thread -pie
2716 add_ldflags -fsanitize=thread -pie
2717 case "$toolchain" in
2725 cc_default="${toolchain%-usan}"
2726 add_cflags -fsanitize=undefined
2727 add_ldflags -fsanitize=undefined
2728 case "$toolchain" in
2735 target_exec_default="valgrind"
2736 case "$toolchain" in
2738 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2741 target_exec_args="--track-origins=yes --leak-check=full"
2746 # Check whether the current MSVC version needs the C99 converter.
2747 # From MSVC 2013 (compiler major version 18) onwards, it does actually
2748 # support enough of C99 to build libav. Default to the new
2749 # behaviour if the regexp was unable to match anything, since this
2750 # successfully parses the version number of existing supported
2751 # versions that require the converter (MSVC 2010 and 2012).
2752 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2753 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2756 cc_default="c99wrap cl"
2758 ld_default="$source_path/compat/windows/mslink"
2759 nm_default="dumpbin -symbols"
2766 target_os_default="win32"
2767 # Use a relative path for TMPDIR. This makes sure all the
2768 # ffconf temp files are written with a relative path, avoiding
2769 # issues with msys/win32 path conversion for MSVC parameters
2770 # such as -Fo<file> or -out:<file>.
2776 nm_default="dumpbin -symbols"
2778 target_os_default="win32"
2782 add_cflags -fprofile-arcs -ftest-coverage
2783 add_ldflags -fprofile-arcs -ftest-coverage
2786 add_cflags -fprofile-arcs -ftest-coverage
2787 add_ldflags --coverage
2790 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2791 add_cflags -fno-strict-overflow -fstack-protector-all
2792 add_ldflags -Wl,-z,relro -Wl,-z,now
2795 die "Unknown toolchain $toolchain"
2799 test -n "$cross_prefix" && enable cross_compile
2801 if enabled cross_compile; then
2802 test -n "$arch" && test -n "$target_os" ||
2803 die "Must specify target arch and OS when cross-compiling"
2806 ar_default="${cross_prefix}${ar_default}"
2807 cc_default="${cross_prefix}${cc_default}"
2808 occ_default="${cross_prefix}${occ_default}"
2809 nm_default="${cross_prefix}${nm_default}"
2810 pkg_config_default="${cross_prefix}${pkg_config_default}"
2811 ranlib="${cross_prefix}${ranlib}"
2812 strip="${cross_prefix}${strip}"
2814 sysinclude_default="${sysroot}/usr/include"
2816 set_default arch cc pkg_config sysinclude target_exec target_os
2817 enabled cross_compile || host_cc_default=$cc
2820 if ! $pkg_config --version >/dev/null 2>&1; then
2821 warn "$pkg_config not found, library detection may fail."
2827 mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2831 EXESUF=$(exesuf $target_os)
2832 HOSTEXESUF=$(exesuf $host_os)
2834 # set temporary file name
2835 : ${TMPDIR:=$TEMPDIR}
2839 if ! check_cmd mktemp -u XXXXXX; then
2840 # simple replacement for missing mktemp
2841 # NOT SAFE FOR GENERAL USE
2843 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2848 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2849 (set -C; exec > $tmp) 2>/dev/null ||
2850 die "Unable to create temporary file in $TMPDIR."
2851 append TMPFILES $tmp
2855 trap 'rm -f -- $TMPFILES' EXIT
2859 tmpfile TMPE $EXESUF
2870 # make sure we can execute files in $TMPDIR
2871 cat > $TMPSH 2>> $logfile <<EOF
2874 chmod +x $TMPSH >> $logfile 2>&1
2875 if ! $TMPSH >> $logfile 2>&1; then
2877 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
2878 variable to another directory and make sure that it is not mounted noexec.
2880 die "Sanity test failed."
2886 # Filter out MSVC cl.exe options from cflags that shouldn't
2887 # be passed to gas-preprocessor
2897 -std=c99) echo -c99 ;;
2898 -mcpu=*) echo -arch ${flag#*=} ;;
2899 -mieee) echo -ieee ;;
2900 -O*|-fast) echo $flag ;;
2901 -fno-math-errno) echo -assume nomath_errno ;;
2903 -Wall) echo -msg_enable level2 ;;
2904 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
2905 -Wl,*) echo $flag ;;
2915 -Wno-switch) echo -Wno-switch-enum ;;
2916 -Wno-format-zero-length) ;;
2917 -Wdisabled-optimization) ;;
2918 -Wno-pointer-sign) echo -Wno-other ;;
2924 msvc_common_flags(){
2927 # In addition to specifying certain flags under the compiler
2928 # specific filters, they must be specified here as well or else the
2929 # generic catch all at the bottom will print the original flag.
2933 -fomit-frame-pointer) ;;
2937 -fno-signed-zeros) ;;
2941 -lz) echo zlib.lib ;;
2942 -lavifil32) echo vfw32.lib ;;
2943 -lavicap32) echo vfw32.lib user32.lib ;;
2944 -lx264) echo libx264.lib ;;
2945 -l*) echo ${flag#-l}.lib ;;
2946 -L*) echo -libpath:${flag#-L} ;;
2953 msvc_common_flags "$@"
2956 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2957 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2958 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2959 -wd4273 -wd4554 -wd4701 ;;
2965 msvc_common_flags "$@"
2968 # Despite what Intel's documentation says -Wall, which is supported
2969 # on Windows, does enable remarks so disable them here.
2970 -Wall) echo $flag -Qdiag-disable:remark ;;
2971 -std=c99) echo -Qstd=c99 ;;
2979 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
2980 -fomit-frame-pointer) echo -Mnoframe ;;
2991 case "${flag#*=}" in
2992 native) echo -xtarget=native ;;
2993 v9|niagara) echo -xarch=sparc ;;
2994 ultrasparc) echo -xarch=sparcvis ;;
2995 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
2996 i586|pentium) echo -xchip=pentium ;;
2997 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
2998 pentium3*|c3-2) echo -xtarget=pentium3 ;;
2999 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3000 pentium4*) echo -xtarget=pentium4 ;;
3001 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3002 *-sse3) echo -xarch=sse3 ;;
3003 core2) echo -xarch=ssse3 -xchip=core2 ;;
3004 corei7) echo -xarch=sse4_2 -xchip=nehalem ;;
3005 corei7-avx) echo -xarch=avx -xchip=sandybridge ;;
3006 amdfam10|barcelona|bdver*) echo -xarch=sse4_1 ;;
3007 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3008 k8|opteron|athlon64|athlon-fx)
3009 echo -xarch=sse2a ;;
3010 athlon*) echo -xarch=pentium_proa ;;
3013 -std=c99) echo -xc99 ;;
3014 -fomit-frame-pointer) echo -xregs=frameptr ;;
3015 -fPIC) echo -KPIC -xcode=pic32 ;;
3016 -W*,*) echo $flag ;;
3017 -f*-*|-W*|-mimpure-text) ;;
3028 case "${flag#*=}" in
3029 armv7-a|cortex-a*) echo -mv=7a8 ;;
3030 armv7-r|cortex-r*) echo -mv=7r4 ;;
3031 armv7-m|cortex-m*) echo -mv=7m3 ;;
3032 armv6*|arm11*) echo -mv=6 ;;
3033 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3035 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3038 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3039 -mfpu=vfp) echo --float_support=vfpv2 ;;
3040 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3041 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3042 -msoft-float) echo --float_support=vfplib ;;
3043 -O[0-3]|-mf=*) echo $flag ;;
3045 -pds=*) echo $flag ;;
3046 -D*|-I*) echo $flag ;;
3047 --gcc|--abi=*) echo $flag ;;
3057 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3058 unset _ld_o _ldflags _ld_lib _ld_path
3059 unset _depflags _DEPCMD _DEPFLAGS
3062 if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3064 gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3065 _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3066 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3069 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3071 gcc_version=$($_cc --version | head -n1)
3072 gcc_basever=$($_cc -dumpversion)
3073 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3074 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3075 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3076 if ! $_cc -dumpversion | grep -q '^2\.'; then
3077 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3081 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3083 _ident=$($_cc --version | head -n1)
3088 elif $_cc -v 2>&1 | grep -q xlc; then
3090 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3092 _cflags_size='-O5 -qcompact'
3093 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3095 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3097 _cflags_speed='-fast'
3099 _flags_filter=ccc_flags
3100 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3101 test -d "$sysroot" || die "No valid sysroot specified."
3103 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3104 armcc_conf="$PWD/armcc.conf"
3105 $_cc --arm_linux_configure \
3106 --arm_linux_config_file="$armcc_conf" \
3107 --configure_sysroot="$sysroot" \
3108 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3109 die "Error creating armcc configuration file."
3110 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3111 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3112 as_default="${cross_prefix}gcc"
3116 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3118 _ident=$($_cc -version | head -n1 | tr -s ' ')
3119 _flags='--gcc --abi=eabi -me'
3122 _depflags='-ppa -ppd=$(@:.o=.d)'
3123 _cflags_speed='-O3 -mf=5'
3124 _cflags_size='-O3 -mf=2'
3125 _flags_filter=tms470_flags
3126 elif $_cc -v 2>&1 | grep -q clang; then
3128 _ident=$($_cc --version 2>/dev/null | head -n1)
3129 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3132 elif $_cc -V 2>&1 | grep -q Sun; then
3134 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3135 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3136 _DEPFLAGS='-xM1 -xc99'
3139 _cflags_size='-O5 -xspace'
3140 _flags_filter=suncc_flags
3141 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3143 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3144 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3147 _flags_filter='filter_out -Wdisabled-optimization'
3148 elif $_cc -v 2>&1 | grep -q Open64; then
3150 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3151 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3154 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3155 elif $_cc -V 2>&1 | grep -q Portland; then
3157 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3158 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3159 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3160 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3162 _flags_filter=pgi_flags
3163 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3165 _ident=$($_cc | head -n1)
3166 # 4509: "This form of conditional instruction is deprecated"
3167 _flags="-nologo -ignore 4509"
3168 _flags_filter=armasm_flags
3169 elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3171 _ident=$($_cc 2>&1 | head -n1)
3172 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3173 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3176 if $_cc -nologo- 2>&1 | grep -q Linker; then
3183 _flags_filter=msvc_flags
3185 _ld_path='-libpath:'
3187 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3188 elif $_cc 2>&1 | grep -q Intel; then
3190 _ident=$($_cc 2>&1 | head -n1)
3191 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3192 # Not only is O3 broken on 13.x+ but it is slower on all previous
3193 # versions (tested) as well.
3195 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3196 if $_cc 2>&1 | grep -q Linker; then
3203 _flags_filter=icl_flags
3205 _ld_path='-libpath:'
3206 # -Qdiag-error to make icl error when seeing certain unknown arguments
3207 _flags='-nologo -Qdiag-error:4044,10157'
3208 # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3209 # with MSVC which enables it by default.
3210 _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS'
3211 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3213 _ident=$($_cc --version | head -n1)
3217 _flags_filter=cparser_flags
3220 eval ${pfx}_type=\$_type
3221 eval ${pfx}_ident=\$_ident
3225 eval ${1}_C=\${_cc_c-\${${1}_C}}
3226 eval ${1}_E=\${_cc_e-\${${1}_E}}
3227 eval ${1}_O=\${_cc_o-\${${1}_O}}
3229 if [ -n "$_depflags" ]; then
3230 eval ${1}_DEPFLAGS=\$_depflags
3232 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3233 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3234 eval DEP${1}FLAGS=\$_flags
3239 cflags_filter=$_flags_filter
3240 cflags_speed=$_cflags_speed
3241 cflags_size=$_cflags_size
3242 cflags_noopt=$_cflags_noopt
3243 add_cflags $_flags $_cflags
3244 cc_ldflags=$_ldflags
3247 probe_cc hostcc "$host_cc"
3248 host_cflags_filter=$_flags_filter
3249 add_host_cflags $_flags $_cflags
3252 test -n "$cc_type" && enable $cc_type ||
3253 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3255 : ${as_default:=$cc}
3256 : ${objcc_default:=$cc}
3257 : ${dep_cc_default:=$cc}
3258 : ${ld_default:=$cc}
3259 : ${host_ld_default:=$host_cc}
3260 set_default ar as objcc dep_cc ld host_ld
3263 asflags_filter=$_flags_filter
3264 add_asflags $_flags $_cflags
3267 probe_cc objcc "$objcc"
3268 objcflags_filter=$_flags_filter
3269 add_objcflags $_flags $_cflags
3273 ldflags_filter=$_flags_filter
3274 add_ldflags $_flags $_ldflags
3275 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3277 LD_LIB=${_ld_lib-$LD_LIB}
3278 LD_PATH=${_ld_path-$LD_PATH}
3280 probe_cc hostld "$host_ld"
3281 host_ldflags_filter=$_flags_filter
3282 add_host_ldflags $_flags $_ldflags
3283 HOSTLD_O=${_ld_o-$HOSTLD_O}
3285 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3286 probe_cc depcc "$dep_cc"
3287 CCDEP=${_DEPCMD:-$DEPCMD}
3288 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3292 if $ar 2>&1 | grep -q Microsoft; then
3295 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3298 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3299 arflags='-Xany -r -c'
3306 add_cflags $extra_cflags
3307 add_objcflags $extra_objcflags
3308 add_asflags $extra_cflags
3310 if test -n "$sysroot"; then
3313 add_cppflags --sysroot="$sysroot"
3314 add_ldflags --sysroot="$sysroot"
3317 add_cppflags -I"$sysinclude"
3318 add_ldflags --sysroot="$sysroot"
3323 if test "$cpu" = host; then
3324 enabled cross_compile &&
3325 die "--cpu=host makes no sense when cross-compiling."
3330 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3332 s/.*$1=\\([^ ]*\\).*/\\1/
3337 cpu=$(check_native -march || check_native -mcpu)
3341 test "${cpu:-host}" = host &&
3342 die "--cpu=host not supported with compiler $cc"
3345 # Deal with common $arch aliases
3369 "Power Macintosh"|ppc*|powerpc*)
3384 i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3389 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3392 # Add processor-specific flags
3393 if enabled aarch64; then
3397 cpuflags="-march=$cpu"
3400 cpuflags="-mcpu=$cpu"
3404 elif enabled alpha; then
3406 cpuflags="-mcpu=$cpu"
3408 elif enabled arm; then
3411 check_cpp_condition stddef.h \
3412 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3417 if check_arm_arch 4; then echo armv4;
3418 elif check_arm_arch 4T; then echo armv4t;
3419 elif check_arm_arch 5; then echo armv5;
3420 elif check_arm_arch 5E; then echo armv5e;
3421 elif check_arm_arch 5T; then echo armv5t;
3422 elif check_arm_arch 5TE; then echo armv5te;
3423 elif check_arm_arch 5TEJ; then echo armv5te;
3424 elif check_arm_arch 6; then echo armv6;
3425 elif check_arm_arch 6J; then echo armv6j;
3426 elif check_arm_arch 6K; then echo armv6k;
3427 elif check_arm_arch 6Z; then echo armv6z;
3428 elif check_arm_arch 6ZK; then echo armv6zk;
3429 elif check_arm_arch 6T2; then echo armv6t2;
3430 elif check_arm_arch 7; then echo armv7;
3431 elif check_arm_arch 7A 7_A; then echo armv7-a;
3432 elif check_arm_arch 7S; then echo armv7-a;
3433 elif check_arm_arch 7R 7_R; then echo armv7-r;
3434 elif check_arm_arch 7M 7_M; then echo armv7-m;
3435 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3436 elif check_arm_arch 8A 8_A; then echo armv8-a;
3440 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3444 cpuflags="-march=$cpu"
3445 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3448 cpuflags="-mcpu=$cpu"
3450 cortex-a*) subarch=armv7a ;;
3451 cortex-r*) subarch=armv7r ;;
3452 cortex-m*) enable thumb; subarch=armv7m ;;
3453 arm11*) subarch=armv6 ;;
3454 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3455 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3456 *) subarch=$(probe_arm_arch) ;;
3462 armv5t*) enable fast_clz ;;
3463 armv[6-8]*) enable fast_clz fast_unaligned ;;
3466 elif enabled avr32; then
3471 cpuflags="-mpart=$cpu"
3475 cpuflags="-march=$cpu"
3479 cpuflags="-mcpu=$cpu"
3483 cpuflags="-march=$cpu"
3487 elif enabled bfin; then
3489 cpuflags="-mcpu=$cpu"
3491 elif enabled mips; then
3493 cpuflags="-march=$cpu"
3495 elif enabled ppc; then
3499 case $(tolower $cpu) in
3500 601|ppc601|powerpc601)
3501 cpuflags="-mcpu=601"
3504 603*|ppc603*|powerpc603*)
3505 cpuflags="-mcpu=603"
3508 604*|ppc604*|powerpc604*)
3509 cpuflags="-mcpu=604"
3512 g3|75*|ppc75*|powerpc75*)
3513 cpuflags="-mcpu=750"
3516 g4|745*|ppc745*|powerpc745*)
3517 cpuflags="-mcpu=7450"
3520 74*|ppc74*|powerpc74*)
3521 cpuflags="-mcpu=7400"
3524 g5|970|ppc970|powerpc970)
3525 cpuflags="-mcpu=970"
3529 cpuflags="-mcpu=$cpu"
3533 cpuflags="-mcpu=$cpu"
3537 cpuflags="-mcpu=cell"
3542 cpuflags="-mcpu=e500mc"
3546 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3551 cpuflags="-mcpu=8540 -mhard-float"
3557 elif enabled sparc; then
3560 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3561 cpuflags="-mcpu=$cpu"
3563 ultrasparc*|niagara[234])
3564 cpuflags="-mcpu=$cpu"
3568 elif enabled x86; then
3572 cpuflags="-march=$cpu"
3576 # targets that do NOT support nopl and conditional mov (cmov)
3577 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3578 cpuflags="-march=$cpu"
3581 # targets that do support nopl and conditional mov (cmov)
3582 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3583 cpuflags="-march=$cpu"
3587 # targets that do support conditional mov but on which it's slow
3588 pentium4|pentium4m|prescott|nocona)
3589 cpuflags="-march=$cpu"
3597 if [ "$cpu" != generic ]; then
3598 add_cflags $cpuflags
3599 add_asflags $cpuflags
3600 test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3603 # compiler sanity check
3605 int main(void){ return 0; }
3607 if test "$?" != 0; then
3608 echo "$cc is unable to create an executable file."
3609 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3610 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3611 echo "Only do this if you know what cross compiling means."
3613 die "C compiler test failed."
3616 add_cppflags -D_ISOC99_SOURCE
3617 check_cflags -std=c99
3618 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3621 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3625 add_host_cppflags -D_ISOC99_SOURCE
3626 check_host_cflags -std=c99
3627 check_host_cflags -Wall
3628 check_host_cflags -O3
3634 check_code cc "" "int test[2*($expr) - 1]" &&
3635 subarch=$arch64 || subarch=$arch32
3643 check_64bit mips mips64 '_MIPS_SIM > 1'
3647 check_64bit parisc parisc64 'sizeof(void *) > 4'
3651 check_64bit ppc ppc64 'sizeof(void *) > 4'
3655 check_64bit s390 s390x 'sizeof(void *) > 4'
3659 check_64bit sparc sparc64 'sizeof(void *) > 4'
3663 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3664 if test "$subarch" = "x86_64"; then
3671 enabled spic && enable_weak pic
3677 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3678 enabled shared && add_ldflags -Wl,-brtl
3682 enable section_data_rel_ro
3683 SLIB_INSTALL_NAME='$(SLIBNAME)'
3685 SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3688 prefix_default="/boot/common"
3689 network_extralibs="-lnetwork"
3693 SHFLAGS='-shared -Wl,-h,$$(@F)'
3694 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3695 network_extralibs="-lsocket -lnsl"
3696 # When using suncc to build, the Solaris linker will mark
3697 # an executable with each instruction set encountered by
3698 # the Solaris assembler. As our libraries contain their own
3699 # guards for processor-specific code, instead suppress
3700 # generation of the HWCAPS ELF section on Solaris x86 only.
3701 enabled_all suncc x86 &&
3702 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3703 add_ldflags -Wl,-M,mapfile
3704 nm_default='nm -P -g'
3705 SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
3709 oss_indev_extralibs="-lossaudio"
3710 oss_outdev_extralibs="-lossaudio"
3715 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3717 oss_indev_extralibs="-lossaudio"
3718 oss_outdev_extralibs="-lossaudio"
3726 add_extralibs -lpoll -lgnugetopt
3729 enabled ppc && add_asflags -force_cpusubtype_ALL
3730 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3731 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3732 add_ldflags -Wl,-dynamic,-search_paths_first
3734 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3735 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3737 enabled x86_64 && objformat="macho64"
3738 enabled_any pic shared ||
3739 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3742 die "Native MSYS builds are discouraged, please use the MINGW environment.";
3745 if test $target_os = "mingw32ce"; then
3751 if enabled x86_64; then
3752 LIBTARGET="i386:x86-64"
3753 elif enabled arm; then
3756 check_ldflags -Wl,--nxcompat
3757 check_ldflags -Wl,--dynamicbase
3758 shlibdir_default="$bindir_default"
3761 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3762 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3763 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3764 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3766 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3767 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3768 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3770 dlltool="${cross_prefix}dlltool"
3776 if enabled shared; then
3777 # Link to the import library instead of the normal static library
3780 # Cannot build both shared and static libs with MSVC or icl.
3783 shlibdir_default="$bindir_default"
3786 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3787 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3788 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3789 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3791 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3792 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3793 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3800 shlibdir_default="$bindir_default"
3803 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3804 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3805 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3807 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3808 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3812 *-dos|freedos|opendos)
3813 network_extralibs="-lsocket"
3816 add_cppflags -U__STRICT_ANSI__
3820 enable section_data_rel_ro
3824 ranlib="echo ignoring ranlib"
3829 add_cppflags -D_GNU_SOURCE
3830 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3831 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3835 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3836 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3837 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3838 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3839 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3840 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3841 emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3842 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3843 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3844 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3848 add_cppflags -D_BSD_SOURCE
3853 add_cppflags -D_QNX_SOURCE
3854 network_extralibs="-lsocket"
3859 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3860 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3861 add_ldflags -Wl,--target1-abs,--no-undefined \
3862 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3863 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3864 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3865 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3866 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3869 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3874 add_cppflags -D_C99_SNPRINTF_EXTENSION \
3875 -D_REENTRANT_SOURCE \
3876 -D_RESEARCH_SOURCE \
3879 add_compat strtod.o strtod=avpriv_strtod
3880 network_extralibs='-lbsd'
3881 exeobjs=compat/plan9/main.o
3887 die "Unknown OS '$target_os'."
3891 # determine libc flavour
3896 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3897 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3898 eval ${pfx}libc_type=uclibc
3899 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3900 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3901 eval ${pfx}libc_type=glibc
3902 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3903 # MinGW headers can be installed on Cygwin, so check for newlib first.
3904 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3905 eval ${pfx}libc_type=newlib
3906 add_${pfx}cppflags -U__STRICT_ANSI__
3907 # MinGW64 is backwards compatible with MinGW32, so check for it first.
3908 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3909 eval ${pfx}libc_type=mingw64
3910 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3911 eval test \$${pfx_no_}cc_type = "gcc" &&
3912 add_${pfx}cppflags -D__printf__=__gnu_printf__
3913 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
3914 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3915 eval ${pfx}libc_type=mingw32
3916 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3917 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3918 die "ERROR: MinGW32 runtime version must be >= 3.15."
3919 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3920 eval test \$${pfx_no_}cc_type = "gcc" &&
3921 add_${pfx}cppflags -D__printf__=__gnu_printf__
3922 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3923 eval ${pfx}libc_type=msvcrt
3924 if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3925 if [ "$pfx" = host_ ]; then
3926 add_host_cppflags -Dsnprintf=_snprintf
3928 add_compat strtod.o strtod=avpriv_strtod
3929 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
3930 _snprintf=avpriv_snprintf \
3931 vsnprintf=avpriv_vsnprintf
3934 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3935 # 0x601 by default unless something else is set by the user.
3936 # This can easily lead to us detecting functions only present
3937 # in such new versions and producing binaries requiring windows 7.0.
3938 # Therefore explicitly set the default to XP unless the user has
3939 # set something else on the command line.
3940 # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
3941 # family. For these cases, configure is free to use any functions
3942 # found in the SDK headers by default. (Alternatively, we could force
3943 # _WIN32_WINNT to 0x0602 in that case.)
3944 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3945 { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
3946 #ifdef WINAPI_FAMILY
3947 #include <winapifamily.h>
3948 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
3953 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3954 eval ${pfx}libc_type=klibc
3955 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3956 eval ${pfx}libc_type=bionic
3957 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3958 eval ${pfx}libc_type=solaris
3959 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3961 eval ${pfx}libc_type=default
3962 add_${pfx}cppflags -D_DEFAULT_SOURCE
3967 test -n "$libc_type" && enable libc_$libc_type
3969 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3973 add_compat strtod.o strtod=avpriv_strtod
3977 # hacks for compiler/libc/os combinations
3979 if enabled_all tms470 libc_glibc; then
3980 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3981 add_cppflags -D__USER_LABEL_PREFIX__=
3982 add_cppflags -D__builtin_memset=memset
3983 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3984 add_cflags -pds=48 # incompatible redefinition of macro
3987 if enabled_all ccc libc_glibc; then
3988 add_ldflags -Wl,-z,now # calls to libots crash without this
3991 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3992 add_cppflags '-I\$(SRC_PATH)/compat/float'
3995 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3998 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
4000 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4002 set_default $PATHS_LIST
4005 # we need to build at least one lib type
4006 if ! enabled_any static shared; then
4008 At least one library type must be built.
4009 Specify --enable-static to build the static libraries or --enable-shared to
4010 build the shared libraries as well. To only build the shared libraries specify
4011 --disable-static in addition to --enable-shared.
4016 die_license_disabled() {
4017 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4020 die_license_disabled gpl libcdio
4021 die_license_disabled gpl libx264
4022 die_license_disabled gpl libx265
4023 die_license_disabled gpl libxavs
4024 die_license_disabled gpl libxvid
4025 die_license_disabled gpl x11grab
4027 die_license_disabled nonfree cuda
4028 die_license_disabled nonfree libfaac
4029 die_license_disabled nonfree libfdk_aac
4030 die_license_disabled nonfree libnpp
4031 die_license_disabled nonfree nvenc
4032 die_license_disabled nonfree openssl
4034 die_license_disabled version3 libopencore_amrnb
4035 die_license_disabled version3 libopencore_amrwb
4036 die_license_disabled version3 libvo_aacenc
4037 die_license_disabled version3 libvo_amrwbenc
4039 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4041 disabled optimizations || check_cflags -fomit-frame-pointer
4044 disabled pic && return
4047 case "$target_os" in
4057 enabled pic && enable_weak_pic
4059 check_cc <<EOF || die "Symbol mangling check failed."
4062 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4063 extern_prefix=${sym%%ff_extern*}
4065 check_cc <<EOF && enable_weak inline_asm
4066 void foo(void) { __asm__ volatile ("" ::); }
4070 for restrict_keyword in restrict __restrict__ __restrict; do
4071 check_cc <<EOF && _restrict=$restrict_keyword && break
4072 void foo(char * $restrict_keyword p);
4076 check_cc <<EOF && enable pragma_deprecated
4077 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4080 check_cc <<EOF && enable attribute_packed
4081 struct { int x; } __attribute__((packed)) x;
4084 check_cc <<EOF && enable attribute_may_alias
4085 union { int x; } __attribute__((may_alias)) x;
4088 check_cc <<EOF || die "endian test failed"
4089 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4091 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4094 log "check_gas using '$as' as AS"
4095 # :vararg is used on aarch64, arm and ppc altivec
4096 check_as <<EOF || return 1
4097 .macro m n, y:vararg=0
4102 # .altmacro is only used in arm asm
4103 ! enabled arm || check_as <<EOF || return 1
4110 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4112 enabled_any arm aarch64 && nogas=die
4113 enabled_all ppc altivec && nogas=warn
4117 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4118 gcc) gaspp_as_type=gas ;;
4119 *) gaspp_as_type=$as_type ;;
4122 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4124 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4125 gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4127 if ! check_gas ; then
4130 $nogas "GNU assembler not found, install/update gas-preprocessor"
4133 check_as <<EOF && enable as_func
4139 check_inline_asm inline_asm_labels '"1:\n"'
4141 if enabled aarch64; then
4142 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4143 # internal assembler in clang 3.3 does not support this instruction
4144 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4145 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4147 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4149 elif enabled alpha; then
4153 elif enabled arm; then
4155 enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4156 check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4157 enabled thumb && check_cflags -mthumb || check_cflags -marm
4159 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4161 elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4163 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4164 case "${cross_prefix:-$cc}" in
4165 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4166 *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4167 __asm__ (".eabi_attribute 28, 1");
4168 int main(void) { return 0; }
4171 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4174 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4175 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4176 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4177 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4178 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4179 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4181 [ $target_os = linux ] || [ $target_os = android ] ||
4182 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4185 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4187 check_as <<EOF && enable as_dn_directive
4192 # llvm's integrated assembler supports .object_arch from llvm 3.5
4193 [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4197 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4199 elif enabled mips; then
4201 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4203 # make sure that only an instruction set is enabled
4204 disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4206 if enabled mips64; then
4207 check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4208 check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4209 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4211 check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4212 check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4213 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4216 elif enabled parisc; then
4218 if enabled gcc; then
4219 case $($cc -dumpversion) in
4220 4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4224 elif enabled ppc; then
4226 enable local_aligned_8 local_aligned_16
4228 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4229 check_inline_asm ibm_asm '"add 0, 0, 0"'
4230 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4231 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4233 # AltiVec flags: The FSF version of GCC differs from the Apple version
4234 if enabled altivec; then
4235 check_cflags -maltivec -mabi=altivec &&
4236 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4237 check_cflags -faltivec
4239 # check if our compiler supports Motorola AltiVec C API
4240 check_cc <<EOF || disable altivec
4243 vector signed int v1 = (vector signed int) { 0 };
4244 vector signed int v2 = (vector signed int) { 1 };
4245 v1 = vec_add(v1, v2);
4250 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4253 if enabled vsx; then
4254 check_cflags -mvsx &&
4255 check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4258 if enabled power8; then
4259 check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4262 elif enabled x86; then
4264 check_builtin rdtsc intrin.h "__rdtsc()"
4265 check_builtin mm_empty mmintrin.h "_mm_empty()"
4267 enable local_aligned_8 local_aligned_16
4269 # check whether EBP is available on x86
4270 # As 'i' is stored on the stack, this program will crash
4271 # if the base pointer is used to access it because the
4272 # base pointer is cleared in the inline assembly code.
4273 check_exec_crash <<EOF && enable ebp_available
4275 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4279 # check whether EBX is available on x86
4280 check_inline_asm ebx_available '""::"b"(0)' &&
4281 check_inline_asm ebx_available '"":::"%ebx"'
4283 # check whether xmm clobbers are supported
4284 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4286 # check whether binutils is new enough to compile SSSE3/MMXEXT
4287 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4288 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4290 if ! disabled_any asm mmx yasm; then
4291 if check_cmd $yasmexe --version; then
4292 enabled x86_64 && yasm_extra="-m amd64"
4293 yasm_debug="-g dwarf2"
4294 elif check_cmd nasm -v; then
4296 yasm_debug="-g -F dwarf"
4297 enabled x86_64 && test "$objformat" = elf && objformat=elf64
4300 YASMFLAGS="-f $objformat $yasm_extra"
4301 enabled pic && append YASMFLAGS "-DPIC"
4302 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4303 case "$objformat" in
4304 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4307 check_yasm "movbe ecx, [5]" && enable yasm ||
4308 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4309 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4310 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4311 check_yasm "vfmadd132ps ymm0, ymm1, ymm2" || disable fma3_external
4312 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4313 check_yasm "CPU amdnop" || disable cpunop
4317 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4324 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4326 check_ldflags -Wl,--as-needed
4328 if check_func dlopen; then
4330 elif check_func dlopen -ldl; then
4334 if ! disabled network; then
4335 check_func getaddrinfo $network_extralibs
4336 check_func inet_aton $network_extralibs
4338 check_type netdb.h "struct addrinfo"
4339 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4340 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4341 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4342 check_type poll.h "struct pollfd"
4343 check_type netinet/sctp.h "struct sctp_event_subscribe"
4344 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4345 check_type netinet/in.h "struct sockaddr_in6"
4346 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4347 check_type "sys/types.h sys/socket.h" socklen_t
4349 # Prefer arpa/inet.h over winsock2
4350 if check_header arpa/inet.h ; then
4351 check_func closesocket
4352 elif check_header winsock2.h ; then
4353 check_func_headers winsock2.h closesocket -lws2 &&
4354 network_extralibs="-lws2" ||
4355 { check_func_headers winsock2.h closesocket -lws2_32 &&
4356 network_extralibs="-lws2_32"; } || disable winsock2_h network
4357 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4359 check_type ws2tcpip.h socklen_t
4360 check_type ws2tcpip.h "struct addrinfo"
4361 check_type ws2tcpip.h "struct group_source_req"
4362 check_type ws2tcpip.h "struct ip_mreq_source"
4363 check_type ws2tcpip.h "struct ipv6_mreq"
4364 check_type winsock2.h "struct pollfd"
4365 check_struct winsock2.h "struct sockaddr" sa_len
4366 check_type ws2tcpip.h "struct sockaddr_in6"
4367 check_type ws2tcpip.h "struct sockaddr_storage"
4373 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4374 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4375 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4376 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4378 case "$custom_allocator" in
4380 # jemalloc by default does not use a prefix
4381 require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4384 require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
4389 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4390 check_func ${malloc_prefix}memalign && enable memalign
4391 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4393 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4394 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4398 check_func gethrtime
4400 check_func getrusage
4401 check_func gettimeofday
4404 check_func localtime_r
4405 check_func mach_absolute_time
4409 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4410 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4411 check_func sched_getaffinity
4412 check_func setrlimit
4413 check_func strerror_r
4418 check_func_headers io.h setmode
4419 check_func_headers stdlib.h getenv
4421 check_func_headers windows.h CoTaskMemFree -lole32
4422 check_func_headers windows.h GetProcessAffinityMask
4423 check_func_headers windows.h GetProcessTimes
4424 check_func_headers windows.h GetSystemTimeAsFileTime
4425 check_func_headers windows.h LoadLibrary
4426 check_func_headers windows.h MapViewOfFile
4427 check_func_headers windows.h SetConsoleTextAttribute
4428 check_func_headers windows.h Sleep
4429 check_func_headers windows.h VirtualAlloc
4430 check_struct windows.h "CONDITION_VARIABLE" Ptr
4432 check_header direct.h
4433 check_header dlfcn.h
4434 check_header d3d11.h
4436 check_header dxva2api.h
4438 check_header mach/mach_time.h
4439 check_header malloc.h
4441 check_header sys/mman.h
4442 check_header sys/param.h
4443 check_header sys/resource.h
4444 check_header sys/select.h
4445 check_header sys/time.h
4446 check_header sys/un.h
4447 check_header unistd.h
4448 check_header valgrind/valgrind.h
4449 check_header vdpau/vdpau.h
4450 check_header vdpau/vdpau_x11.h
4451 check_header VideoDecodeAcceleration/VDADecoder.h
4452 check_header windows.h
4453 check_header X11/extensions/XvMClib.h
4455 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4456 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4457 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4459 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4461 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4462 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4463 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4465 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4467 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4469 if ! disabled w32threads && ! enabled pthreads; then
4470 check_func_headers "windows.h process.h" _beginthreadex &&
4471 enable w32threads || disable w32threads
4474 # check for some common methods of building with pthread support
4475 # do this before the optional library checks as some of them require pthreads
4476 if ! disabled pthreads && ! enabled w32threads; then
4478 if check_func pthread_join -pthread; then
4480 add_extralibs -pthread
4481 elif check_func pthread_join -pthreads; then
4482 add_cflags -pthreads
4483 add_extralibs -pthreads
4484 elif check_func pthread_join -lpthreadGC2; then
4485 add_extralibs -lpthreadGC2
4486 elif check_lib pthread.h pthread_join -lpthread; then
4488 elif ! check_func pthread_join; then
4493 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4494 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4496 check_lib math.h sin -lm && LIBM="-lm"
4497 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4503 for func in $MATH_FUNCS; do
4504 eval check_mathfunc $func \${${func}_args:-1}
4507 # these are off by default, so fail if requested and not available
4508 enabled avisynth && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4509 check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl ||
4510 die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4511 enabled cuda && check_lib cuda.h cuInit -lcuda
4512 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4513 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4514 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4515 enabled libdcadec && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4516 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4517 enabled libfdk_aac && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4518 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4519 enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4520 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4521 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4522 done || die "ERROR: libgsm not found"; }
4523 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4524 enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4525 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4526 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4527 enabled libnpp && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4528 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4529 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4530 enabled libopencv && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4531 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4532 enabled libopenjpeg && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4533 { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4534 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4535 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4536 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4537 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4538 enabled libsnappy && require snappy snappy-c.h snappy_compress -lsnappy
4539 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4540 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4541 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame
4542 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4543 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4544 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4545 enabled libvpx && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4546 enabled libvpx_vp8_decoder && {
4547 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4548 disable libvpx_vp8_decoder;
4550 enabled libvpx_vp8_encoder && {
4551 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4552 disable libvpx_vp8_encoder;
4554 enabled libvpx_vp9_decoder && {
4555 check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4556 disable libvpx_vp9_decoder;
4558 enabled libvpx_vp9_encoder && {
4559 check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4560 disable libvpx_vp9_encoder;
4562 if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4563 die "libvpx enabled but no supported decoders found"
4566 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4567 enabled libwebp && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4568 enabled libx264 && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4569 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4570 die "ERROR: libx264 version must be >= 0.118."; } &&
4571 { check_cpp_condition x264.h "X264_MPEG2" &&
4573 enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
4574 { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4575 die "ERROR: libx265 version must be >= 57."; }
4576 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4577 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4578 enabled mmal && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4579 { ! enabled cross_compile && {
4580 add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4581 add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4582 check_lib interface/mmal/mmal.h mmal_port_connect ; }
4583 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4584 die "ERROR: mmal not found"; }
4585 enabled openssl && { check_pkg_config openssl openssl/ssl.h SSL_library_init && {
4586 add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
4587 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4588 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4589 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4590 die "ERROR: openssl not found"; }
4592 if enabled gnutls; then
4593 { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4594 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4598 if enabled libdc1394; then
4599 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4600 enable libdc1394_2; } ||
4601 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4602 enable libdc1394_1; } ||
4603 die "ERROR: No version of libdc1394 found "
4606 if enabled nvenc; then
4607 enabled cuda || check_header cuda.h || die "ERROR: cuda.h not found.";
4608 check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4609 check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4610 die "ERROR: NVENC API version 4 or older is not supported";
4613 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4614 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4615 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4619 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4620 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4622 check_header linux/fb.h
4623 check_header linux/videodev2.h
4624 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4626 check_header AVFoundation/AVFoundation.h &&
4627 check_objcflags -fobjc-arc &&
4628 add_extralibs -framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia ||
4629 disable AVFoundation_AVFoundation_h
4631 check_header sys/videoio.h
4633 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4634 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4635 # w32api 3.12 had it defined wrong
4636 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4638 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4639 { check_header dev/bktr/ioctl_meteor.h &&
4640 check_header dev/bktr/ioctl_bt848.h; } ||
4641 { check_header machine/ioctl_meteor.h &&
4642 check_header machine/ioctl_bt848.h; } ||
4643 { check_header dev/video/meteor/ioctl_meteor.h &&
4644 check_header dev/video/bktr/ioctl_bt848.h; } ||
4645 check_header dev/ic/bt8xx.h
4647 check_header sndio.h
4648 check_header sys/soundcard.h
4649 check_header soundcard.h
4651 enabled_any alsa_indev alsa_outdev &&
4652 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4654 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4655 check_func jack_port_get_latency_range -ljack
4657 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4659 if enabled libcdio; then
4660 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4661 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4662 die "ERROR: No usable libcdio/cdparanoia found"
4665 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4667 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4668 check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4669 enabled libxcb && die "ERROR: libxcb not found";
4670 } && disable x11grab && enable libxcb
4672 disabled libxcb_shm ||
4673 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4674 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4675 } && check_header sys/shm.h && enable libxcb_shm
4677 disabled libxcb_xfixes ||
4678 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4679 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4680 } && enable libxcb_xfixes
4682 add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4683 add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4686 if enabled x11grab; then
4687 enabled xlib || die "ERROR: Xlib not found"
4688 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4689 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4693 check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
4696 enabled vaapi && enabled xlib &&
4697 check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4701 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4704 enabled vdpau && enabled xlib &&
4705 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4706 prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4709 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4711 # add some useful compiler flags if supported
4712 check_cflags -Wdeclaration-after-statement
4714 check_cflags -Wdisabled-optimization
4715 check_cflags -Wpointer-arith
4716 check_cflags -Wredundant-decls
4717 check_cflags -Wwrite-strings
4718 check_cflags -Wtype-limits
4719 check_cflags -Wundef
4720 check_cflags -Wmissing-prototypes
4721 check_cflags -Wstrict-prototypes
4722 enabled extra_warnings && check_cflags -Winline
4723 enabled extra_warnings && check_cflags -Wcast-qual
4725 check_disable_warning(){
4726 warning_flag=-W${1#-Wno-}
4727 test_cflags $warning_flag && add_cflags $1
4730 check_disable_warning -Wno-parentheses
4731 check_disable_warning -Wno-switch
4732 check_disable_warning -Wno-format-zero-length
4733 check_disable_warning -Wno-pointer-sign
4735 # add some linker flags
4736 check_ldflags -Wl,--warn-common
4737 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4738 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4739 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4741 # add some strip flags
4742 # -wN '..@*' is more selective than -x, but not available everywhere.
4743 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4745 enabled neon_clobber_test &&
4746 check_ldflags -Wl,--wrap,avcodec_open2 \
4747 -Wl,--wrap,avcodec_decode_audio4 \
4748 -Wl,--wrap,avcodec_decode_video2 \
4749 -Wl,--wrap,avcodec_decode_subtitle2 \
4750 -Wl,--wrap,avcodec_encode_audio2 \
4751 -Wl,--wrap,avcodec_encode_video2 \
4752 -Wl,--wrap,avcodec_encode_subtitle \
4753 -Wl,--wrap,avresample_convert ||
4754 disable neon_clobber_test
4756 enabled xmm_clobber_test &&
4757 check_ldflags -Wl,--wrap,avcodec_open2 \
4758 -Wl,--wrap,avcodec_decode_audio4 \
4759 -Wl,--wrap,avcodec_decode_video2 \
4760 -Wl,--wrap,avcodec_decode_subtitle2 \
4761 -Wl,--wrap,avcodec_encode_audio2 \
4762 -Wl,--wrap,avcodec_encode_video2 \
4763 -Wl,--wrap,avcodec_encode_subtitle \
4764 -Wl,--wrap,avresample_convert \
4765 -Wl,--wrap,sws_scale ||
4766 disable xmm_clobber_test
4768 echo "X { local: *; };" > $TMPV
4769 if test_ldflags -Wl,--version-script,$TMPV; then
4770 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4771 elif test_ldflags -Wl,-M,$TMPV; then
4772 append SHFLAGS '-Wl,-M,\$(SUBDIR)lib\$(NAME).ver-sol2'
4775 check_cc <<EOF && enable symver_asm_label
4776 void ff_foo(void) __asm__ ("av_foo@VERSION");
4777 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4779 check_cc <<EOF && enable symver_gnu_asm
4780 __asm__(".symver ff_foo,av_foo@VERSION");
4781 void ff_foo(void) {}
4784 if [ -z "$optflags" ]; then
4785 if enabled small; then
4786 optflags=$cflags_size
4787 elif enabled optimizations; then
4788 optflags=$cflags_speed
4790 optflags=$cflags_noopt
4796 enabled lto && check_ldflags "$@"
4800 if enabled lto; then
4801 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4803 check_ldflags -flto $cpuflags
4806 check_optflags $optflags
4807 check_optflags -fno-math-errno
4808 check_optflags -fno-signed-zeros
4810 if enabled icc; then
4811 # Just warnings, no remarks
4813 # -wd: Disable following warnings
4814 # 144, 167, 556: -Wno-pointer-sign
4815 # 1292: attribute "foo" ignored
4816 # 1419: external declaration in primary source file
4817 # 10006: ignoring unknown option -fno-signed-zeros
4818 # 10148: ignoring unknown option -Wno-parentheses
4819 # 10156: ignoring option '-W'; no argument required
4820 check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4821 # 11030: Warning unknown option --as-needed
4822 # 10156: ignoring option '-export'; no argument required
4823 check_ldflags -wd10156,11030
4824 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4825 enable ebp_available
4826 if enabled x86_32; then
4827 icc_version=$($cc -dumpversion)
4828 test ${icc_version%%.*} -ge 11 &&
4829 check_cflags -falign-stack=maintain-16-byte ||
4830 disable aligned_stack
4832 elif enabled ccc; then
4833 # disable some annoying warnings
4834 add_cflags -msg_disable bitnotint
4835 add_cflags -msg_disable mixfuncvoid
4836 add_cflags -msg_disable nonstandcast
4837 add_cflags -msg_disable unsupieee
4838 elif enabled gcc; then
4839 check_optflags -fno-tree-vectorize
4840 check_cflags -Werror=implicit-function-declaration
4841 check_cflags -Werror=missing-prototypes
4842 check_cflags -Werror=return-type
4843 check_cflags -Werror=declaration-after-statement
4844 check_cflags -Werror=vla
4845 check_cflags -Werror=format-security
4846 check_cflags -fdiagnostics-color=auto
4847 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4848 elif enabled llvm_gcc; then
4849 check_cflags -mllvm -stack-alignment=16
4850 elif enabled clang; then
4851 check_cflags -mllvm -stack-alignment=16
4852 check_cflags -Qunused-arguments
4853 check_cflags -Werror=implicit-function-declaration
4854 check_cflags -Werror=missing-prototypes
4855 check_cflags -Werror=return-type
4856 elif enabled cparser; then
4857 add_cflags -Wno-missing-variable-declarations
4858 add_cflags -Wno-empty-statement
4859 elif enabled armcc; then
4860 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4861 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4862 # 2523: use of inline assembly is deprecated
4863 add_cflags -W${armcc_opt},--diag_suppress=2523
4864 add_cflags -W${armcc_opt},--diag_suppress=1207
4865 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4866 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4867 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
4868 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
4869 elif enabled tms470; then
4870 add_cflags -pds=824 -pds=837
4872 elif enabled pathscale; then
4873 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4874 elif enabled_any msvc icl; then
4875 enabled x86_32 && disable aligned_stack
4876 enabled_all x86_32 debug && add_cflags -Oy-
4877 enabled debug && add_ldflags -debug
4878 enable pragma_deprecated
4879 if enabled icl; then
4880 # -Qansi-alias is basically -fstrict-aliasing, but does not work
4881 # (correctly) on icl 13.x.
4882 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4883 add_cflags -Qansi-alias
4884 # icl will pass the inline asm tests but inline asm is currently
4885 # not supported (build will fail)
4888 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4889 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4890 # The CRT headers contain __declspec(restrict) in a few places, but if redefining
4891 # restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
4892 # (as it ends up if the restrict redefine is done before including stdlib.h), while
4893 # MSVC 2013 and newer can handle it fine.
4894 # If this declspec fails, force including stdlib.h before the restrict redefinition
4895 # happens in config.h.
4896 if [ $_restrict != restrict ]; then
4897 check_cc <<EOF || add_cflags -FIstdlib.h
4898 __declspec($_restrict) void* foo(int);
4901 check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4904 for pfx in "" host_; do
4905 varname=${pfx%_}cc_type
4906 eval "type=\$$varname"
4907 if [ $type = "msvc" ]; then
4908 check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
4909 static inline int foo(int a) { return a; }
4916 add_asflags -Qunused-arguments
4922 check_ldflags -Qunused-arguments
4928 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4931 add_cppflags -Dmain=plan9_main
4935 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4937 check_deps $CONFIG_LIST \
4942 enabled_all dxva2 CoTaskMemFree &&
4943 prepend avconv_libs $($ldflags_filter "-lole32") &&
4946 ! enabled_any memalign posix_memalign aligned_malloc &&
4947 enabled simd_align_16 && enable memalign_hack
4949 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4951 for thread in $THREADS_LIST; do
4952 if enabled $thread; then
4953 test -n "$thread_type" &&
4954 die "ERROR: Only one thread type must be selected." ||
4955 thread_type="$thread"
4959 enabled zlib && add_cppflags -DZLIB_CONST
4961 # conditional library dependencies, in linking order
4962 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
4963 enabled resample_filter && prepend avfilter_deps "avresample"
4964 enabled scale_filter && prepend avfilter_deps "swscale"
4966 enabled opus_decoder && prepend avcodec_deps "avresample"
4970 eval "deps=\$$lib_deps"
4971 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4975 map 'expand_deps $v' $LIBRARY_LIST
4977 echo "install prefix $prefix"
4978 echo "source path $source_path"
4979 echo "C compiler $cc"
4980 echo "C library $libc_type"
4981 if test "$host_cc" != "$cc"; then
4982 echo "host C compiler $host_cc"
4983 echo "host C library $host_libc_type"
4985 echo "ARCH $arch ($cpu)"
4986 if test "$build_suffix" != ""; then
4987 echo "build suffix $build_suffix"
4989 if test "$extra_version" != ""; then
4990 echo "version string suffix $extra_version"
4992 echo "big-endian ${bigendian-no}"
4993 echo "runtime cpu detection ${runtime_cpudetect-no}"
4994 if enabled x86; then
4995 echo "${yasmexe} ${yasm-no}"
4996 echo "MMX enabled ${mmx-no}"
4997 echo "MMXEXT enabled ${mmxext-no}"
4998 echo "3DNow! enabled ${amd3dnow-no}"
4999 echo "3DNow! extended enabled ${amd3dnowext-no}"
5000 echo "SSE enabled ${sse-no}"
5001 echo "SSSE3 enabled ${ssse3-no}"
5002 echo "AVX enabled ${avx-no}"
5003 echo "XOP enabled ${xop-no}"
5004 echo "FMA3 enabled ${fma3-no}"
5005 echo "FMA4 enabled ${fma4-no}"
5006 echo "i686 features enabled ${i686-no}"
5007 echo "CMOV is fast ${fast_cmov-no}"
5008 echo "EBX available ${ebx_available-no}"
5009 echo "EBP available ${ebp_available-no}"
5011 if enabled aarch64; then
5012 echo "NEON enabled ${neon-no}"
5013 echo "VFP enabled ${vfp-no}"
5015 if enabled arm; then
5016 echo "ARMv5TE enabled ${armv5te-no}"
5017 echo "ARMv6 enabled ${armv6-no}"
5018 echo "ARMv6T2 enabled ${armv6t2-no}"
5019 echo "VFP enabled ${vfp-no}"
5020 echo "NEON enabled ${neon-no}"
5022 if enabled ppc; then
5023 echo "AltiVec enabled ${altivec-no}"
5024 echo "VSX enabled ${vsx-no}"
5025 echo "POWER8 enabled ${power8-no}"
5026 echo "PPC 4xx optimizations ${ppc4xx-no}"
5027 echo "dcbzl available ${dcbzl-no}"
5029 echo "debug symbols ${debug-no}"
5030 echo "optimize for size ${small-no}"
5031 echo "optimizations ${optimizations-no}"
5032 echo "static ${static-no}"
5033 echo "shared ${shared-no}"
5034 echo "new filter support ${avfilter-no}"
5035 echo "network support ${network-no}"
5036 echo "threading support ${thread_type-no}"
5037 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5038 echo "SDL support ${sdl-no}"
5039 test -n "$random_seed" &&
5040 echo "random seed ${random_seed}"
5043 echo "External libraries:"
5044 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5048 print_enabled '' $LIBRARY_LIST | print_3_columns
5051 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5052 echo "Enabled ${type}s:"
5053 eval list=\$$(toupper $type)_LIST
5054 print_enabled '_*' $list | print_3_columns
5058 license="LGPL version 2.1 or later"
5059 if enabled nonfree; then
5060 license="nonfree and unredistributable"
5061 elif enabled gplv3; then
5062 license="GPL version 3 or later"
5063 elif enabled lgplv3; then
5064 license="LGPL version 3 or later"
5065 elif enabled gpl; then
5066 license="GPL version 2 or later"
5069 echo "License: $license"
5071 echo "Creating config.mak and config.h..."
5073 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5075 config_files="$TMPH config.mak"
5077 cat > config.mak <<EOF
5078 # Automatically generated by configure - do not modify!
5079 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
5081 LIBDIR=\$(DESTDIR)$libdir
5082 SHLIBDIR=\$(DESTDIR)$shlibdir
5083 INCDIR=\$(DESTDIR)$incdir
5084 BINDIR=\$(DESTDIR)$bindir
5085 DATADIR=\$(DESTDIR)$datadir
5086 DOCDIR=\$(DESTDIR)$docdir
5087 MANDIR=\$(DESTDIR)$mandir
5088 SRC_PATH=$source_path
5091 INTRINSICS=$intrinsics
5098 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5100 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5111 OBJCFLAGS=$OBJCFLAGS
5126 LDEXEFLAGS=$LDEXEFLAGS
5127 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5128 STRIPFLAGS=$STRIPFLAGS
5129 YASMFLAGS=$YASMFLAGS
5130 BUILDSUF=$build_suffix
5138 EXTRA_VERSION=$extra_version
5140 CCDEP_FLAGS=$CCDEP_FLAGS
5142 ASDEP_FLAGS=$ASDEP_FLAGS
5143 CC_DEPFLAGS=$CC_DEPFLAGS
5144 AS_DEPFLAGS=$AS_DEPFLAGS
5147 HOSTCFLAGS=$host_cflags
5148 HOSTCPPFLAGS=$host_cppflags
5149 HOSTEXESUF=$HOSTEXESUF
5150 HOSTLDFLAGS=$host_ldflags
5153 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5154 HOSTCCDEP=$HOSTCCDEP
5155 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5156 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5160 TARGET_EXEC=$target_exec $target_exec_args
5161 TARGET_PATH=$target_path
5162 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5163 CFLAGS-avplay=$sdl_cflags
5164 ZLIB=$($ldflags_filter -lz)
5165 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5166 EXTRALIBS=$extralibs
5167 COMPAT_OBJS=$compat_objs
5170 LIBTARGET=${LIBTARGET}
5171 SLIBNAME=${SLIBNAME}
5172 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5173 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5174 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5175 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5176 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5177 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5178 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5179 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5180 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
5185 name=$(toupper $lcname)
5186 file=$source_path/$lcname/version.h
5187 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5188 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5189 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5190 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5191 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5194 map 'get_version $v' $LIBRARY_LIST
5196 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5198 print_program_libs(){
5199 eval "program_libs=\$${1}_libs"
5200 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5203 map 'print_program_libs $v' $PROGRAM_LIST
5206 /* Automatically generated by configure - do not modify! */
5207 #ifndef LIBAV_CONFIG_H
5208 #define LIBAV_CONFIG_H
5209 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
5210 #define LIBAV_LICENSE "$(c_escape $license)"
5211 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5212 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5213 #define restrict $_restrict
5214 #define EXTERN_PREFIX "${extern_prefix}"
5215 #define EXTERN_ASM ${extern_prefix}
5216 #define SLIBSUF "$SLIBSUF"
5219 test -n "$malloc_prefix" &&
5220 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5222 if enabled yasm; then
5223 append config_files $TMPASM
5227 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5229 print_config ARCH_ "$config_files" $ARCH_LIST
5230 print_config HAVE_ "$config_files" $HAVE_LIST
5231 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5235 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
5237 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5238 cp_if_changed $TMPH config.h
5241 enabled yasm && cp_if_changed $TMPASM config.asm
5244 /* Generated by ffconf */
5245 #ifndef AVUTIL_AVCONFIG_H
5246 #define AVUTIL_AVCONFIG_H
5249 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5251 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5253 cp_if_changed $TMPH libavutil/avconfig.h
5255 test -n "$WARNINGS" && printf "\n$WARNINGS"
5257 # build pkg-config files
5260 eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
5263 pkgconfig_generate(){
5265 shortname=${name#lib}${build_suffix}
5269 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5270 requires=${requires%, }
5271 enabled ${name#lib} || return 0
5273 cat <<EOF > $name/$name.pc
5275 exec_prefix=\${prefix}
5280 Description: $comment
5282 Requires: $(enabled shared || echo $requires)
5283 Requires.private: $(enabled shared && echo $requires)
5285 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
5286 Libs.private: $(enabled shared && echo $libs)
5287 Cflags: -I\${includedir}
5289 cat <<EOF > $name/$name-uninstalled.pc
5292 libdir=\${pcfiledir}
5293 includedir=${source_path}
5296 Description: $comment
5300 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
5301 Cflags: -I\${includedir}
5305 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5306 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5307 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5308 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5309 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5310 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5311 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"