3 # FFmpeg 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 FFMPEG, 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 FFmpeg."
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:$PATH
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
65 --help print this message
66 --list-decoders show all available decoders
67 --list-encoders show all available encoders
68 --list-hwaccels show all available hardware accelerators
69 --list-demuxers show all available demuxers
70 --list-muxers show all available muxers
71 --list-parsers show all available parsers
72 --list-protocols show all available protocols
73 --list-bsfs show all available bitstream filters
74 --list-indevs show all available input devices
75 --list-outdevs show all available output devices
76 --list-filters show all available filters
79 --logfile=FILE log tests and output to FILE [config.log]
80 --disable-logging do not log configure debug information
81 --fatal-warnings fail if any configure warning is generated
82 --prefix=PREFIX install in PREFIX [$prefix]
83 --bindir=DIR install binaries in DIR [PREFIX/bin]
84 --datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
85 --docdir=DIR install documentation in DIR [PREFIX/share/doc/ffmpeg]
86 --libdir=DIR install libs in DIR [PREFIX/lib]
87 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
88 --incdir=DIR install includes in DIR [PREFIX/include]
89 --mandir=DIR install man page in DIR [PREFIX/share/man]
90 --enable-rpath use rpath to allow installing libraries in paths
91 not part of the dynamic linker search path
92 use rpath when linking programs [USE WITH CARE]
95 --enable-gpl allow use of GPL code, the resulting libs
96 and binaries will be under GPL [no]
97 --enable-version3 upgrade (L)GPL to version 3 [no]
98 --enable-nonfree allow use of nonfree code, the resulting libs
99 and binaries will be unredistributable [no]
101 Configuration options:
102 --disable-static do not build static libraries [no]
103 --enable-shared build shared libraries [no]
104 --enable-small optimize for size instead of speed
105 --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
106 --enable-gray enable full grayscale support (slower color)
107 --disable-swscale-alpha disable alpha channel support in swscale
108 --disable-all disable building components, libraries and programs
109 --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
110 --enable-raise-major increase major version numbers in sonames [no]
113 --disable-programs do not build command line programs
114 --disable-ffmpeg disable ffmpeg build
115 --disable-ffplay disable ffplay build
116 --disable-ffprobe disable ffprobe build
117 --disable-ffserver disable ffserver build
119 Documentation options:
120 --disable-doc do not build documentation
121 --disable-htmlpages do not build HTML documentation pages
122 --disable-manpages do not build man documentation pages
123 --disable-podpages do not build POD documentation pages
124 --disable-txtpages do not build text documentation pages
127 --disable-avdevice disable libavdevice build
128 --disable-avcodec disable libavcodec build
129 --disable-avformat disable libavformat build
130 --disable-avutil disable libavutil build
131 --disable-swresample disable libswresample build
132 --disable-swscale disable libswscale build
133 --disable-postproc disable libpostproc build
134 --disable-avfilter disable libavfilter build
135 --enable-avresample enable libavresample build [no]
136 --disable-pthreads disable pthreads [auto]
137 --disable-w32threads disable Win32 threads [auto]
138 --disable-os2threads disable OS/2 threads [auto]
139 --disable-network disable network support [no]
140 --disable-dct disable DCT code
141 --disable-dwt disable DWT code
142 --disable-error-resilience disable error resilience code
143 --disable-lsp disable LSP code
144 --disable-lzo disable LZO decoder code
145 --disable-mdct disable MDCT code
146 --disable-rdft disable RDFT code
147 --disable-fft disable FFT code
148 --disable-faan disable floating point AAN (I)DCT code
149 --disable-pixelutils disable pixel utils in libavutil
151 Hardware accelerators:
152 --disable-dxva2 disable DXVA2 code [autodetect]
153 --disable-vaapi disable VAAPI code [autodetect]
154 --disable-vda disable VDA code [autodetect]
155 --disable-vdpau disable VDPAU code [autodetect]
157 Individual component options:
158 --disable-everything disable all components listed below
159 --disable-encoder=NAME disable encoder NAME
160 --enable-encoder=NAME enable encoder NAME
161 --disable-encoders disable all encoders
162 --disable-decoder=NAME disable decoder NAME
163 --enable-decoder=NAME enable decoder NAME
164 --disable-decoders disable all decoders
165 --disable-hwaccel=NAME disable hwaccel NAME
166 --enable-hwaccel=NAME enable hwaccel NAME
167 --disable-hwaccels disable all hwaccels
168 --disable-muxer=NAME disable muxer NAME
169 --enable-muxer=NAME enable muxer NAME
170 --disable-muxers disable all muxers
171 --disable-demuxer=NAME disable demuxer NAME
172 --enable-demuxer=NAME enable demuxer NAME
173 --disable-demuxers disable all demuxers
174 --enable-parser=NAME enable parser NAME
175 --disable-parser=NAME disable parser NAME
176 --disable-parsers disable all parsers
177 --enable-bsf=NAME enable bitstream filter NAME
178 --disable-bsf=NAME disable bitstream filter NAME
179 --disable-bsfs disable all bitstream filters
180 --enable-protocol=NAME enable protocol NAME
181 --disable-protocol=NAME disable protocol NAME
182 --disable-protocols disable all protocols
183 --enable-indev=NAME enable input device NAME
184 --disable-indev=NAME disable input device NAME
185 --disable-indevs disable input devices
186 --enable-outdev=NAME enable output device NAME
187 --disable-outdev=NAME disable output device NAME
188 --disable-outdevs disable output devices
189 --disable-devices disable all devices
190 --enable-filter=NAME enable filter NAME
191 --disable-filter=NAME disable filter NAME
192 --disable-filters disable all filters
194 External library support:
195 --enable-avisynth enable reading of AviSynth script files [no]
196 --disable-bzlib disable bzlib [autodetect]
197 --enable-fontconfig enable fontconfig
198 --enable-frei0r enable frei0r video filtering
199 --enable-gnutls enable gnutls [no]
200 --disable-iconv disable iconv [autodetect]
201 --enable-ladspa enable LADSPA audio filtering
202 --enable-libaacplus enable AAC+ encoding via libaacplus [no]
203 --enable-libass enable libass subtitles rendering [no]
204 --enable-libbluray enable BluRay reading using libbluray [no]
205 --enable-libbs2b enable bs2b DSP library [no]
206 --enable-libcaca enable textual display using libcaca
207 --enable-libcelt enable CELT decoding via libcelt [no]
208 --enable-libcdio enable audio CD grabbing with libcdio
209 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
211 --enable-libfaac enable AAC encoding via libfaac [no]
212 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
213 --enable-libflite enable flite (voice synthesis) support via libflite [no]
214 --enable-libfreetype enable libfreetype [no]
215 --enable-libfribidi enable libfribidi [no]
216 --enable-libgme enable Game Music Emu via libgme [no]
217 --enable-libgsm enable GSM de/encoding via libgsm [no]
218 --enable-libiec61883 enable iec61883 via libiec61883 [no]
219 --enable-libilbc enable iLBC de/encoding via libilbc [no]
220 --enable-libmodplug enable ModPlug via libmodplug [no]
221 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
222 --enable-libnut enable NUT (de)muxing via libnut,
223 native (de)muxer exists [no]
224 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
225 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
226 --enable-libopencv enable video filtering via libopencv [no]
227 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
228 --enable-libopus enable Opus de/encoding via libopus [no]
229 --enable-libpulse enable Pulseaudio input via libpulse [no]
230 --enable-libquvi enable quvi input via libquvi [no]
231 --enable-librtmp enable RTMP[E] support via librtmp [no]
232 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
233 --enable-libshine enable fixed-point MP3 encoding via libshine [no]
234 --enable-libsmbclient enable Samba protocol via libsmbclient [no]
235 --enable-libsoxr enable Include libsoxr resampling [no]
236 --enable-libspeex enable Speex de/encoding via libspeex [no]
237 --enable-libssh enable SFTP protocol via libssh [no]
238 --enable-libstagefright-h264 enable H.264 decoding via libstagefright [no]
239 --enable-libtheora enable Theora encoding via libtheora [no]
240 --enable-libtwolame enable MP2 encoding via libtwolame [no]
241 --enable-libutvideo enable Ut Video encoding and decoding via libutvideo [no]
242 --enable-libv4l2 enable libv4l2/v4l-utils [no]
243 --enable-libvidstab enable video stabilization using vid.stab [no]
244 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
245 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
246 --enable-libvorbis enable Vorbis en/decoding via libvorbis,
247 native implementation exists [no]
248 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
249 --enable-libwavpack enable wavpack encoding via libwavpack [no]
250 --enable-libwebp enable WebP encoding via libwebp [no]
251 --enable-libx264 enable H.264 encoding via x264 [no]
252 --enable-libx265 enable HEVC encoding via x265 [no]
253 --enable-libxavs enable AVS encoding via xavs [no]
254 --enable-libxcb enable X11 grabbing using XCB [auto]
255 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
256 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
257 --enable-libxvid enable Xvid encoding via xvidcore,
258 native MPEG-4/Xvid encoder exists [no]
259 --enable-libzmq enable message passing via libzmq [no]
260 --enable-libzvbi enable teletext support via libzvbi [no]
261 --disable-lzma disable lzma [autodetect]
262 --enable-decklink enable Blackmagick DeckLink I/O support [no]
263 --enable-openal enable OpenAL 1.1 capture support [no]
264 --enable-opencl enable OpenCL code
265 --enable-opengl enable OpenGL rendering [no]
266 --enable-openssl enable openssl [no]
267 --disable-sdl disable sdl [autodetect]
268 --enable-x11grab enable X11 grabbing (legacy) [no]
269 --disable-xlib disable xlib [autodetect]
270 --disable-zlib disable zlib [autodetect]
273 --arch=ARCH select architecture [$arch]
274 --cpu=CPU select the minimum required CPU (affects
275 instruction selection, may crash on older CPUs)
276 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
277 --progs-suffix=SUFFIX program name suffix []
278 --enable-cross-compile assume a cross-compiler is used
279 --sysroot=PATH root of cross-build tree
280 --sysinclude=PATH location of cross-build system headers
281 --target-os=OS compiler targets OS [$target_os]
282 --target-exec=CMD command to run executables on target
283 --target-path=DIR path to view of build directory on target
284 --target-samples=DIR path to samples directory on target
285 --tempprefix=PATH force fixed dir/prefix instead of mktemp for checks
286 --toolchain=NAME set tool defaults according to NAME
287 --nm=NM use nm tool NM [$nm_default]
288 --ar=AR use archive tool AR [$ar_default]
289 --as=AS use assembler AS [$as_default]
290 --windres=WINDRES use windows resource compiler WINDRES [$windres_default]
291 --yasmexe=EXE use yasm-compatible assembler EXE [$yasmexe_default]
292 --cc=CC use C compiler CC [$cc_default]
293 --cxx=CXX use C compiler CXX [$cxx_default]
294 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
295 --ld=LD use linker LD [$ld_default]
296 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
297 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
298 --ranlib=RANLIB use ranlib RANLIB [$ranlib_default]
299 --doxygen=DOXYGEN use DOXYGEN to generate API doc [$doxygen_default]
300 --host-cc=HOSTCC use host C compiler HOSTCC
301 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
302 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
303 --host-ld=HOSTLD use host linker HOSTLD
304 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
305 --host-libs=HLIBS use libs HLIBS when linking for host
306 --host-os=OS compiler host OS [$target_os]
307 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
308 --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
309 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
310 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
311 --extra-libs=ELIBS add ELIBS [$ELIBS]
312 --extra-version=STRING version string suffix []
313 --optflags=OPTFLAGS override optimization-related compiler flags
314 --build-suffix=SUFFIX library name suffix []
315 --enable-pic build position-independent code
316 --enable-thumb compile for Thumb instruction set
317 --enable-lto use link-time optimization
319 Advanced options (experts only):
320 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
321 --disable-symver disable symbol versioning
322 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
323 --disable-safe-bitstream-reader
324 disable buffer boundary checking in bitreaders
325 (faster, but may crash)
326 --enable-memalign-hack emulate memalign, interferes with memory debuggers
327 --sws-max-filter-size=N the max filter size swscale uses [$sws_max_filter_size_default]
329 Optimization options (experts only):
330 --disable-asm disable all assembly optimizations
331 --disable-altivec disable AltiVec optimizations
332 --disable-amd3dnow disable 3DNow! optimizations
333 --disable-amd3dnowext disable 3DNow! extended optimizations
334 --disable-mmx disable MMX optimizations
335 --disable-mmxext disable MMXEXT optimizations
336 --disable-sse disable SSE optimizations
337 --disable-sse2 disable SSE2 optimizations
338 --disable-sse3 disable SSE3 optimizations
339 --disable-ssse3 disable SSSE3 optimizations
340 --disable-sse4 disable SSE4 optimizations
341 --disable-sse42 disable SSE4.2 optimizations
342 --disable-avx disable AVX optimizations
343 --disable-xop disable XOP optimizations
344 --disable-fma3 disable FMA3 optimizations
345 --disable-fma4 disable FMA4 optimizations
346 --disable-avx2 disable AVX2 optimizations
347 --disable-armv5te disable armv5te optimizations
348 --disable-armv6 disable armv6 optimizations
349 --disable-armv6t2 disable armv6t2 optimizations
350 --disable-vfp disable VFP optimizations
351 --disable-neon disable NEON optimizations
352 --disable-inline-asm disable use of inline assembly
353 --disable-yasm disable use of nasm/yasm assembly
354 --disable-mips32r2 disable MIPS32R2 optimizations
355 --disable-mipsdspr1 disable MIPS DSP ASE R1 optimizations
356 --disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations
357 --disable-mipsfpu disable floating point MIPS optimizations
358 --disable-fast-unaligned consider unaligned accesses slow
360 Developer options (useful when working on FFmpeg itself):
361 --disable-debug disable debugging symbols
362 --enable-debug=LEVEL set the debug level [$debuglevel]
363 --disable-optimizations disable compiler optimizations
364 --enable-extra-warnings enable more compiler warnings
365 --disable-stripping disable stripping of executables and shared libraries
366 --assert-level=level 0(default), 1 or 2, amount of assertion testing,
367 2 causes a slowdown at runtime.
368 --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
369 --valgrind=VALGRIND run "make fate" tests through valgrind to detect memory
370 leaks and errors, using the specified valgrind binary.
371 Cannot be combined with --target-exec
372 --enable-ftrapv Trap arithmetic overflows
373 --samples=PATH location of test samples for FATE, if not set use
374 \$FATE_SAMPLES at make invocation time.
375 --enable-neon-clobber-test check NEON registers for clobbering (should be
376 used only for debugging purposes)
377 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
378 should be used only for debugging purposes)
379 --enable-random randomly enable/disable components
381 --enable-random=LIST randomly enable/disable specific components or
382 --disable-random=LIST component groups. LIST is a comma-separated list
383 of NAME[:PROB] entries where NAME is a component
384 (group) and PROB the probability associated with
386 --random-seed=VALUE seed value for --enable/disable-random
388 NOTE: Object files are built at the place where configure is launched.
396 echo "$@" >> $logfile
401 pr -n -t $1 >> $logfile
412 WARNINGS="${WARNINGS}WARNING: $*\n"
419 If you think configure made a mistake, make sure you are using the latest
420 version from Git. If the latest version fails, report the problem to the
421 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
423 if disabled logging; then
425 Rerun configure with logging enabled (do not use --disable-logging), and
426 include the log this produces with your report.
430 Include the log file "$logfile" produced by configure as this will help
437 # Avoid locale weirdness, besides we really just want to translate ASCII.
439 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
443 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
447 echo "$*" | sed 's/["\\]/\\\0/g'
451 v=$(echo "$1" | sed "s/'/'\\\\''/g")
452 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
457 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//;s/\\r//g'
464 eval "case $v in $pat) echo $v ;; esac"
472 eval "case $v in $pat) ;; *) echo $v ;; esac"
479 for v; do eval $m; done
485 for v; do echo ${v}${suffix}; done
500 eval : \${$var:=$value}
505 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
511 eval $(sanitize_var_name "$var")='$*'
515 eval echo \$$(sanitize_var_name "$1")
520 eval level=\${${pvar}_level:=0}
521 eval ${pvar}_${level}="\$$pvar"
522 eval ${pvar}_level=$(($level+1))
528 eval level=\${${pvar}_level:-0}
529 test $level = 0 && continue
530 eval level=$(($level-1))
531 eval $pvar="\${${pvar}_${level}}"
532 eval ${pvar}_level=$level
533 eval unset ${pvar}_${level}
555 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
561 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
567 enabled $var && continue
568 eval sel="\$${var}_select"
569 eval sgs="\$${var}_suggest"
573 enable_deep_weak $sgs
585 disabled $var && continue
594 test "${1#!}" = "$1" && op== || op=!=
595 eval test "x\$${1#!}" $op "xyes"
599 test "${1#!}" = "$1" && op== || op=!=
600 eval test "x\$${1#!}" $op "xno"
605 enabled $opt || return 1
611 disabled $opt || return 1
617 enabled $opt && return 0
623 disabled $opt && return 0
630 eval : \${$opt:=\$${opt}_default}
638 [ $var = $value ] && return 0
646 enabled ${cfg}_checking && die "Circular dependency for $cfg."
647 disabled ${cfg}_checking && continue
648 enable ${cfg}_checking
651 eval dep_all="\$${cfg}_deps"
652 eval dep_any="\$${cfg}_deps_any"
653 eval dep_sel="\$${cfg}_select"
654 eval dep_sgs="\$${cfg}_suggest"
655 eval dep_ifa="\$${cfg}_if"
656 eval dep_ifn="\$${cfg}_if_any"
658 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
659 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
660 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
662 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
663 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
664 enabled_all $dep_all || disable $cfg
665 enabled_any $dep_any || disable $cfg
666 disabled_any $dep_sel && disable $cfg
668 if enabled $cfg; then
670 enable_deep_weak $dep_sgs
673 disable ${cfg}_checking
682 for cfg in $allopts; do
683 enabled $cfg || continue
684 eval dep_extralibs="\$${cfg}_extralibs"
685 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
693 map 'eval echo "$v \${$v:-no}"' "$@" |
694 awk "BEGIN { split(\"$files\", files) }
696 c = \"$pfx\" toupper(\$1);
702 if (file ~ /\\.h\$/) {
703 printf(\"#define %s %d\\n\", c, v) >>file;
704 } else if (file ~ /\\.asm\$/) {
705 printf(\"%%define %s %d\\n\", c, v) >>file;
706 } else if (file ~ /\\.mak\$/) {
707 n = -v ? \"\" : \"!\";
708 printf(\"%s%s=yes\\n\", n, c) >>file;
709 } else if (file ~ /\\.texi\$/) {
710 pre = -v ? \"\" : \"@c \";
713 gsub(/_/, \"-\", c2);
714 printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
724 enabled $v && printf "%s\n" ${v%$suf};
731 eval "$var=\"\$$var $*\""
737 eval "$var=\"$* \$$var\""
743 for tok in $(eval echo \$$var); do
744 uniq_list="$(filter_out $tok $uniq_list) $tok"
746 eval "$var=\"${uniq_list}\""
754 append CFLAGS $($cflags_filter "$@")
758 append CXXFLAGS $($cflags_filter "$@")
762 append ASFLAGS $($asflags_filter "$@")
766 append LDFLAGS $($ldflags_filter "$@")
770 append LDEXEFLAGS $($ldflags_filter "$@")
774 append ASMSTRIPFLAGS "$@"
778 prepend extralibs $($ldflags_filter "$@")
782 append host_cppflags "$@"
786 append host_cflags $($host_cflags_filter "$@")
790 append host_ldflags $($host_ldflags_filter "$@")
794 append compat_objs $1
796 map 'add_cppflags -D$v' "$@"
801 "$@" >> $logfile 2>&1
806 stat "$1" >> $logfile 2>&1
810 eval printf '%s\\n' $CC_O
814 eval printf '%s\\n' $CC_E
821 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
828 check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
835 check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
842 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
846 eval printf '%s\\n' $AS_O
853 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
857 log check_inline_asm "$@"
862 check_cc "$@" <<EOF && enable $name
863 void foo(void){ __asm__ volatile($code); }
869 check_inline_asm ${1}_inline "\"$2\""
870 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
878 check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
882 eval printf '%s\\n' $LD_O
889 flags=$(filter_out '-l*|*.so' $@)
890 libs=$(filter '-l*|*.so' $@)
891 check_$type $($cflags_filter $flags) || return
892 flags=$($ldflags_filter $flags)
893 libs=$($ldflags_filter $libs)
894 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
899 test "${hdr%.h}" = "${hdr}" &&
900 echo "#include $hdr" ||
901 echo "#include <$hdr>"
911 for hdr in $headers; do
914 echo "int main(void) { $code; return 0; }"
915 } | check_$check "$@"
919 log check_cppflags "$@"
920 check_cc "$@" <<EOF && append CPPFLAGS "$@"
927 set -- $($cflags_filter "$@")
934 log check_cflags "$@"
935 test_cflags "$@" && add_cflags "$@"
939 log check_cxxflags "$@"
940 set -- $($cflags_filter "$@")
941 check_cxx "$@" <<EOF && append CXXFLAGS "$@"
947 log test_ldflags "$@"
948 check_ld "cc" "$@" <<EOF
949 int main(void){ return 0; }
954 log check_ldflags "$@"
955 test_ldflags "$@" && add_ldflags "$@"
959 log test_stripflags "$@"
960 # call check_cc to get a fresh TMPO
962 int main(void) { return 0; }
964 check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
968 log check_stripflags "$@"
969 test_stripflags "$@" && add_stripflags "$@"
973 log check_header "$@"
977 check_cpp "$@" <<EOF && enable_safe $header
984 log check_header_oc "$@"
990 echo "#include <$header>"
991 echo "int main(void) { return 0; }"
992 } | check_oc && check_stat "$TMPO" && enable_safe $headers
1000 check_ld "cc" "$@" <<EOF && enable $func
1002 int main(void){ $func(); }
1007 log check_mathfunc "$@"
1011 test $narg = 2 && args="f, g" || args="f"
1013 check_ld "cc" "$@" <<EOF && enable $func
1015 float foo(float f, float g) { return $func($args); }
1016 int main(void){ return (int) foo; }
1020 check_func_headers(){
1021 log check_func_headers "$@"
1026 for hdr in $headers; do
1029 for func in $funcs; do
1030 echo "long check_$func(void) { return (long) $func; }"
1032 echo "int main(void) { return 0; }"
1033 } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1036 check_class_headers_cpp(){
1037 log check_class_headers_cpp "$@"
1042 for hdr in $headers; do
1043 echo "#include <$hdr>"
1045 echo "int main(void) { "
1047 for class in $classes; do
1048 echo "$class obj$i;"
1052 } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1055 check_cpp_condition(){
1056 log check_cpp_condition "$@"
1060 check_cpp "$@" <<EOF
1063 #error "unsatisfied condition: $condition"
1073 check_header $header && check_func $func "$@" && add_extralibs "$@"
1081 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1085 log check_lib_cpp "$@"
1089 check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1093 log check_pkg_config "$@"
1099 check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1100 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1101 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1102 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1103 set_safe ${pkg}_cflags $pkg_cflags &&
1104 set_safe ${pkg}_libs $pkg_libs
1108 check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1114 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1115 # are safe but may not be available everywhere. Thus we use
1116 # raise(SIGTERM) instead. The check is run in a subshell so we
1117 # can redirect the "Terminated" message from the shell. SIGBUS
1118 # is not defined by standard C so it is used conditionally.
1120 (check_exec "$@") >> $logfile 2>&1 <<EOF
1122 static void sighandler(int sig){
1128 int (*func_ptr)(void) = foo;
1130 signal(SIGILL, sighandler);
1131 signal(SIGFPE, sighandler);
1132 signal(SIGSEGV, sighandler);
1134 signal(SIGBUS, sighandler);
1146 disable_safe "$type"
1147 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1151 log check_struct "$@"
1156 disable_safe "${struct}_${member}"
1157 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1158 enable_safe "${struct}_${member}"
1162 log check_builtin "$@"
1168 check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1171 check_compile_assert(){
1172 log check_compile_assert "$@"
1178 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1186 check_lib $header $func "$@" || die "ERROR: $name not found"
1194 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1202 check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1205 require_pkg_config(){
1207 check_pkg_config "$@" || die "ERROR: $pkg not found"
1208 add_cflags $(get_safe ${pkg}_cflags)
1209 add_extralibs $(get_safe ${pkg}_libs)
1212 require_libfreetype(){
1213 log require_libfreetype "$@"
1215 check_cmd $pkg_config --exists --print-errors $pkg \
1216 || die "ERROR: $pkg not found"
1217 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1218 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1220 echo "#include <ft2build.h>"
1221 echo "#include FT_FREETYPE_H"
1222 echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1223 echo "int main(void) { return 0; }"
1224 } | check_ld "cc" $pkg_cflags $pkg_libs \
1225 && set_safe ${pkg}_cflags $pkg_cflags \
1226 && set_safe ${pkg}_libs $pkg_libs \
1227 || die "ERROR: $pkg not found"
1228 add_cflags $(get_safe ${pkg}_cflags)
1229 add_extralibs $(get_safe ${pkg}_libs)
1233 eval printf '%s\\n' $HOSTCC_E
1237 eval printf '%s\\n' $HOSTCC_O
1241 log check_host_cc "$@"
1244 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1248 log check_host_cpp "$@"
1251 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1254 check_host_cppflags(){
1255 log check_host_cppflags "$@"
1256 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1261 check_host_cflags(){
1262 log check_host_cflags "$@"
1263 set -- $($host_cflags_filter "$@")
1264 check_host_cc "$@" <<EOF && append host_cflags "$@"
1269 check_host_cpp_condition(){
1270 log check_host_cpp_condition "$@"
1274 check_host_cpp "$@" <<EOF
1277 #error "unsatisfied condition: $condition"
1285 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1289 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1290 mkdir -p "$(dirname $2)"
1294 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1295 # system-dependent things.
1312 avio_reading_example
1313 decoding_encoding_example
1314 demuxing_decoding_example
1316 filter_audio_example
1317 filtering_audio_example
1318 filtering_video_example
1322 resampling_audio_example
1323 scaling_video_example
1324 transcode_aac_example
1328 EXTERNAL_LIBRARY_LIST="
1417 safe_bitstream_reader
1476 $EXTERNAL_LIBRARY_LIST
1484 incompatible_libav_abi
1545 ARCH_EXT_LIST_MIPS="
1552 ARCH_EXT_LIST_X86_SIMD="
1579 $ARCH_EXT_LIST_X86_SIMD
1605 atomic_compare_exchange
1611 sync_val_compare_and_swap
1622 incompatible_libav_abi
1631 cdio_paranoia_paranoia_h
1633 dev_bktr_ioctl_bt848_h
1634 dev_bktr_ioctl_meteor_h
1636 dev_video_bktr_ioctl_bt848_h
1637 dev_video_meteor_ioctl_meteor_h
1645 machine_ioctl_bt848_h
1646 machine_ioctl_meteor_h
1648 openjpeg_1_5_openjpeg_h
1715 GetProcessAffinityMask
1716 GetProcessMemoryInfo
1720 GetSystemTimeAsFileTime
1727 jack_port_get_latency_range
1742 SetConsoleTextAttribute
1754 TOOLCHAIN_FEATURES="
1766 inline_asm_nonlocal_labels
1767 inline_asm_direct_symbol_refs
1778 CONDITION_VARIABLE_Ptr
1781 struct_group_source_req
1782 struct_ip_mreq_source
1785 struct_rusage_ru_maxrss
1786 struct_sctp_event_subscribe
1788 struct_sockaddr_sa_len
1789 struct_sockaddr_storage
1790 struct_stat_st_mtim_tv_nsec
1791 struct_v4l2_frmivalenum_discrete
1796 $(add_suffix _external $ARCH_EXT_LIST)
1797 $(add_suffix _inline $ARCH_EXT_LIST)
1828 # options emitted with CONFIG_ prefix but not available on the command line
1842 frame_thread_encoder
1964 # code dependency declarations
1966 # architecture extensions
1971 armv8_deps="aarch64"
1972 neon_deps_any="aarch64 arm"
1973 intrinsics_neon_deps="neon"
1974 vfp_deps_any="aarch64 arm"
1978 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1981 mips32r2_deps="mips"
1982 mipsdspr1_deps="mips"
1983 mipsdspr2_deps="mips"
1990 x86_64_select="i686"
1991 x86_64_suggest="fast_cmov"
1994 amd3dnowext_deps="amd3dnow"
2010 mmx_external_deps="yasm"
2011 mmx_inline_deps="inline_asm"
2012 mmx_suggest="mmx_external mmx_inline"
2014 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2015 eval dep=\$${ext}_deps
2016 eval ${ext}_external_deps='"${dep}_external"'
2017 eval ${ext}_inline_deps='"${dep}_inline"'
2018 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2021 aligned_stack_if_any="aarch64 ppc x86"
2022 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2023 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2024 fast_unaligned_if_any="aarch64 ppc x86"
2025 simd_align_16_if_any="altivec neon sse"
2027 # system capabilities
2029 symver_if_any="symver_asm_label symver_gnu_asm"
2032 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2033 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2034 atomics_win32_if="MemoryBarrier"
2035 atomics_native_if_any="$ATOMICS_LIST"
2036 w32threads_deps="atomics_native"
2037 threads_if_any="$THREADS_LIST"
2041 error_resilience_select="me_cmp"
2042 faandct_deps="faan fdctdsp"
2043 faanidct_deps="faan idctdsp"
2044 frame_thread_encoder_deps="encoders threads"
2045 intrax8_select="error_resilience"
2048 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2049 mpeg_er_select="error_resilience"
2050 mpegaudio_select="mpegaudiodsp"
2051 mpegaudiodsp_select="dct"
2052 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2053 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2055 # decoders / encoders
2056 aac_decoder_select="mdct sinewin"
2057 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2058 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2059 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2060 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2061 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2062 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2063 aic_decoder_select="golomb idctdsp"
2064 alac_encoder_select="lpc"
2065 als_decoder_select="bswapdsp"
2066 amrnb_decoder_select="lsp"
2067 amrwb_decoder_select="lsp"
2068 amv_decoder_select="sp5x_decoder exif"
2069 amv_encoder_select="aandcttables mpegvideoenc"
2070 ape_decoder_select="bswapdsp llauddsp"
2071 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2072 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2073 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2074 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2075 atrac1_decoder_select="mdct sinewin"
2076 atrac3_decoder_select="mdct"
2077 atrac3p_decoder_select="mdct sinewin"
2078 avrn_decoder_select="exif"
2079 bink_decoder_select="blockdsp hpeldsp"
2080 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2081 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2082 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2083 cllc_decoder_select="bswapdsp"
2084 comfortnoise_encoder_select="lpc"
2085 cook_decoder_select="audiodsp mdct sinewin"
2086 cscd_decoder_select="lzo"
2087 cscd_decoder_suggest="zlib"
2088 dca_decoder_select="mdct"
2089 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2090 dnxhd_decoder_select="blockdsp idctdsp"
2091 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2092 dvvideo_decoder_select="dvprofile idctdsp"
2093 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2094 dxa_decoder_select="zlib"
2095 eac3_decoder_select="ac3_decoder"
2096 eac3_encoder_select="ac3_encoder"
2097 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2098 eatgq_decoder_select="aandcttables"
2099 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2100 exr_decoder_select="zlib"
2101 ffv1_decoder_select="golomb rangecoder"
2102 ffv1_encoder_select="rangecoder"
2103 ffvhuff_decoder_select="huffyuv_decoder"
2104 ffvhuff_encoder_select="huffyuv_encoder"
2105 fic_decoder_select="golomb"
2106 flac_decoder_select="golomb"
2107 flac_encoder_select="bswapdsp golomb lpc"
2108 flashsv_decoder_select="zlib"
2109 flashsv_encoder_select="zlib"
2110 flashsv2_encoder_select="zlib"
2111 flashsv2_decoder_select="zlib"
2112 flv_decoder_select="h263_decoder"
2113 flv_encoder_select="h263_encoder"
2114 fourxm_decoder_select="blockdsp bswapdsp"
2115 fraps_decoder_select="bswapdsp huffman"
2116 g2m_decoder_select="blockdsp idctdsp zlib"
2117 g729_decoder_select="audiodsp"
2118 h261_decoder_select="mpeg_er mpegvideo"
2119 h261_encoder_select="aandcttables mpegvideoenc"
2120 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2121 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2122 h263i_decoder_select="h263_decoder"
2123 h263p_encoder_select="h263_encoder"
2124 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2125 h264_decoder_suggest="error_resilience"
2126 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2127 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2128 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2129 iac_decoder_select="imc_decoder"
2130 imc_decoder_select="bswapdsp fft mdct sinewin"
2131 indeo3_decoder_select="hpeldsp"
2132 interplay_video_decoder_select="hpeldsp"
2133 jpegls_decoder_select="golomb mjpeg_decoder"
2134 jpegls_encoder_select="golomb"
2135 jv_decoder_select="blockdsp"
2136 lagarith_decoder_select="huffyuvdsp"
2137 ljpeg_encoder_select="aandcttables idctdsp"
2138 loco_decoder_select="golomb"
2139 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2140 metasound_decoder_select="lsp mdct sinewin"
2141 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2142 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2143 mjpeg_encoder_select="aandcttables mpegvideoenc"
2144 mjpegb_decoder_select="mjpeg_decoder"
2145 mlp_decoder_select="mlp_parser"
2146 motionpixels_decoder_select="bswapdsp"
2147 mp1_decoder_select="mpegaudio"
2148 mp1float_decoder_select="mpegaudio"
2149 mp2_decoder_select="mpegaudio"
2150 mp2float_decoder_select="mpegaudio"
2151 mp3_decoder_select="mpegaudio"
2152 mp3adu_decoder_select="mpegaudio"
2153 mp3adufloat_decoder_select="mpegaudio"
2154 mp3float_decoder_select="mpegaudio"
2155 mp3on4_decoder_select="mpegaudio"
2156 mp3on4float_decoder_select="mpegaudio"
2157 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2158 mpc8_decoder_select="mpegaudiodsp"
2159 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2160 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2161 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2162 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2163 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2164 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2165 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2166 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2167 mpeg4_encoder_select="h263_encoder"
2168 msmpeg4v1_decoder_select="h263_decoder"
2169 msmpeg4v2_decoder_select="h263_decoder"
2170 msmpeg4v2_encoder_select="h263_encoder"
2171 msmpeg4v3_decoder_select="h263_decoder"
2172 msmpeg4v3_encoder_select="h263_encoder"
2173 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2174 mxpeg_decoder_select="mjpeg_decoder"
2175 nellymoser_decoder_select="mdct sinewin"
2176 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2177 nuv_decoder_select="idctdsp lzo"
2178 on2avc_decoder_select="mdct"
2179 opus_decoder_deps="swresample"
2180 png_decoder_select="zlib"
2181 png_encoder_select="huffyuvencdsp zlib"
2182 prores_decoder_select="blockdsp idctdsp"
2183 prores_encoder_select="fdctdsp"
2184 qcelp_decoder_select="lsp"
2185 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2186 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2187 ra_144_decoder_select="audiodsp"
2188 ralf_decoder_select="golomb"
2189 rawvideo_decoder_select="bswapdsp"
2190 rtjpeg_decoder_select="me_cmp"
2191 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2192 rv10_encoder_select="h263_encoder"
2193 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2194 rv20_encoder_select="h263_encoder"
2195 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2196 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2197 shorten_decoder_select="golomb"
2198 sipr_decoder_select="lsp"
2199 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2200 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2201 sonic_decoder_select="golomb rangecoder"
2202 sonic_encoder_select="golomb rangecoder"
2203 sonic_ls_encoder_select="golomb rangecoder"
2204 sp5x_decoder_select="mjpeg_decoder"
2205 svq1_decoder_select="hpeldsp"
2206 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2207 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2208 svq3_decoder_suggest="zlib"
2209 tak_decoder_select="audiodsp"
2210 theora_decoder_select="vp3_decoder"
2211 thp_decoder_select="mjpeg_decoder"
2212 tiff_decoder_suggest="zlib lzma"
2213 tiff_encoder_suggest="zlib"
2214 truehd_decoder_select="mlp_parser"
2215 truemotion2_decoder_select="bswapdsp"
2216 truespeech_decoder_select="bswapdsp"
2217 tscc_decoder_select="zlib"
2218 twinvq_decoder_select="mdct lsp sinewin"
2219 utvideo_decoder_select="bswapdsp"
2220 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2221 vble_decoder_select="huffyuvdsp"
2222 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2223 vc1image_decoder_select="vc1_decoder"
2224 vorbis_decoder_select="mdct"
2225 vorbis_encoder_select="mdct"
2226 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2227 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2228 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2229 vp6a_decoder_select="vp6_decoder"
2230 vp6f_decoder_select="vp6_decoder"
2231 vp7_decoder_select="h264pred videodsp"
2232 vp8_decoder_select="h264pred videodsp"
2233 vp9_decoder_select="videodsp vp9_parser"
2234 webp_decoder_select="vp8_decoder"
2235 wmalossless_decoder_select="llauddsp"
2236 wmapro_decoder_select="mdct sinewin wma_freqs"
2237 wmav1_decoder_select="mdct sinewin wma_freqs"
2238 wmav1_encoder_select="mdct sinewin wma_freqs"
2239 wmav2_decoder_select="mdct sinewin wma_freqs"
2240 wmav2_encoder_select="mdct sinewin wma_freqs"
2241 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2242 wmv1_decoder_select="h263_decoder"
2243 wmv1_encoder_select="h263_encoder"
2244 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2245 wmv2_encoder_select="h263_encoder"
2246 wmv3_decoder_select="vc1_decoder"
2247 wmv3image_decoder_select="wmv3_decoder"
2248 zerocodec_decoder_select="zlib"
2249 zlib_decoder_select="zlib"
2250 zlib_encoder_select="zlib"
2251 zmbv_decoder_select="zlib"
2252 zmbv_encoder_select="zlib"
2254 # hardware accelerators
2255 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2256 dxva2_deps="dxva2api_h"
2257 vaapi_deps="va_va_h"
2258 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2259 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2260 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2261 xvmc_deps="X11_extensions_XvMClib_h"
2263 h263_vaapi_hwaccel_deps="vaapi"
2264 h263_vaapi_hwaccel_select="h263_decoder"
2265 h263_vdpau_hwaccel_deps="vdpau"
2266 h263_vdpau_hwaccel_select="h263_decoder"
2267 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2268 h264_dxva2_hwaccel_deps="dxva2"
2269 h264_dxva2_hwaccel_select="h264_decoder"
2270 h264_vaapi_hwaccel_deps="vaapi"
2271 h264_vaapi_hwaccel_select="h264_decoder"
2272 h264_vda_decoder_deps="vda"
2273 h264_vda_decoder_select="h264_decoder"
2274 h264_vda_hwaccel_deps="vda"
2275 h264_vda_hwaccel_select="h264_decoder"
2276 h264_vda_old_hwaccel_deps="vda"
2277 h264_vda_old_hwaccel_select="h264_decoder"
2278 h264_vdpau_decoder_deps="vdpau"
2279 h264_vdpau_decoder_select="h264_decoder"
2280 h264_vdpau_hwaccel_deps="vdpau"
2281 h264_vdpau_hwaccel_select="h264_decoder"
2282 mpeg_vdpau_decoder_deps="vdpau"
2283 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2284 mpeg_xvmc_hwaccel_deps="xvmc"
2285 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2286 mpeg1_vdpau_decoder_deps="vdpau"
2287 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2288 mpeg1_vdpau_hwaccel_deps="vdpau"
2289 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2290 mpeg1_xvmc_hwaccel_deps="xvmc"
2291 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2292 mpeg2_crystalhd_decoder_select="crystalhd"
2293 mpeg2_dxva2_hwaccel_deps="dxva2"
2294 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2295 mpeg2_vaapi_hwaccel_deps="vaapi"
2296 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2297 mpeg2_vdpau_hwaccel_deps="vdpau"
2298 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2299 mpeg2_xvmc_hwaccel_deps="xvmc"
2300 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2301 mpeg4_crystalhd_decoder_select="crystalhd"
2302 mpeg4_vaapi_hwaccel_deps="vaapi"
2303 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2304 mpeg4_vdpau_decoder_deps="vdpau"
2305 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2306 mpeg4_vdpau_hwaccel_deps="vdpau"
2307 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2308 msmpeg4_crystalhd_decoder_select="crystalhd"
2309 vc1_crystalhd_decoder_select="crystalhd"
2310 vc1_dxva2_hwaccel_deps="dxva2"
2311 vc1_dxva2_hwaccel_select="vc1_decoder"
2312 vc1_vaapi_hwaccel_deps="vaapi"
2313 vc1_vaapi_hwaccel_select="vc1_decoder"
2314 vc1_vdpau_decoder_deps="vdpau"
2315 vc1_vdpau_decoder_select="vc1_decoder"
2316 vc1_vdpau_hwaccel_deps="vdpau"
2317 vc1_vdpau_hwaccel_select="vc1_decoder"
2318 wmv3_crystalhd_decoder_select="crystalhd"
2319 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2320 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2321 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2322 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2325 h264_parser_select="h264_decoder"
2326 hevc_parser_select="hevc_decoder"
2327 mpegvideo_parser_select="mpegvideo"
2328 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2329 vc1_parser_select="mpegvideo startcode vc1_decoder"
2331 # external libraries
2332 libaacplus_encoder_deps="libaacplus"
2333 libcelt_decoder_deps="libcelt"
2334 libfaac_encoder_deps="libfaac"
2335 libfaac_encoder_select="audio_frame_queue"
2336 libfdk_aac_decoder_deps="libfdk_aac"
2337 libfdk_aac_encoder_deps="libfdk_aac"
2338 libfdk_aac_encoder_select="audio_frame_queue"
2339 libgme_demuxer_deps="libgme"
2340 libgsm_decoder_deps="libgsm"
2341 libgsm_encoder_deps="libgsm"
2342 libgsm_ms_decoder_deps="libgsm"
2343 libgsm_ms_encoder_deps="libgsm"
2344 libilbc_decoder_deps="libilbc"
2345 libilbc_encoder_deps="libilbc"
2346 libmodplug_demuxer_deps="libmodplug"
2347 libmp3lame_encoder_deps="libmp3lame"
2348 libmp3lame_encoder_select="audio_frame_queue"
2349 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2350 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2351 libopencore_amrnb_encoder_select="audio_frame_queue"
2352 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2353 libopenjpeg_decoder_deps="libopenjpeg"
2354 libopenjpeg_encoder_deps="libopenjpeg"
2355 libopus_decoder_deps="libopus"
2356 libopus_encoder_deps="libopus"
2357 libopus_encoder_select="audio_frame_queue"
2358 libquvi_demuxer_deps="libquvi"
2359 libschroedinger_decoder_deps="libschroedinger"
2360 libschroedinger_encoder_deps="libschroedinger"
2361 libshine_encoder_deps="libshine"
2362 libshine_encoder_select="audio_frame_queue"
2363 libspeex_decoder_deps="libspeex"
2364 libspeex_encoder_deps="libspeex"
2365 libspeex_encoder_select="audio_frame_queue"
2366 libstagefright_h264_decoder_deps="libstagefright_h264"
2367 libtheora_encoder_deps="libtheora"
2368 libtwolame_encoder_deps="libtwolame"
2369 libvo_aacenc_encoder_deps="libvo_aacenc"
2370 libvo_aacenc_encoder_select="audio_frame_queue"
2371 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2372 libvorbis_decoder_deps="libvorbis"
2373 libvorbis_encoder_deps="libvorbis"
2374 libvorbis_encoder_select="audio_frame_queue"
2375 libvpx_vp8_decoder_deps="libvpx"
2376 libvpx_vp8_encoder_deps="libvpx"
2377 libvpx_vp9_decoder_deps="libvpx"
2378 libvpx_vp9_encoder_deps="libvpx"
2379 libwavpack_encoder_deps="libwavpack"
2380 libwebp_encoder_deps="libwebp"
2381 libx264_encoder_deps="libx264"
2382 libx264rgb_encoder_deps="libx264"
2383 libx265_encoder_deps="libx265"
2384 libxavs_encoder_deps="libxavs"
2385 libxvid_encoder_deps="libxvid"
2386 libutvideo_decoder_deps="libutvideo"
2387 libutvideo_encoder_deps="libutvideo"
2388 libzvbi_teletext_decoder_deps="libzvbi"
2391 ac3_demuxer_select="ac3_parser"
2392 asf_demuxer_select="riffdec"
2393 asf_muxer_select="riffenc"
2394 asf_stream_muxer_select="asf_muxer"
2395 avi_demuxer_select="riffdec exif"
2396 avi_muxer_select="riffenc"
2397 avisynth_demuxer_deps="avisynth"
2398 avisynth_demuxer_select="riffdec"
2399 caf_demuxer_select="riffdec"
2400 dirac_demuxer_select="dirac_parser"
2401 dts_demuxer_select="dca_parser"
2402 dtshd_demuxer_select="dca_parser"
2403 dv_demuxer_select="dvprofile"
2404 dv_muxer_select="dvprofile"
2405 dxa_demuxer_select="riffdec"
2406 eac3_demuxer_select="ac3_parser"
2407 f4v_muxer_select="mov_muxer"
2408 flac_demuxer_select="flac_parser"
2409 hds_muxer_select="flv_muxer"
2410 hls_muxer_select="mpegts_muxer"
2411 image2_alias_pix_demuxer_select="image2_demuxer"
2412 image2_brender_pix_demuxer_select="image2_demuxer"
2413 ipod_muxer_select="mov_muxer"
2414 ismv_muxer_select="mov_muxer"
2415 libnut_demuxer_deps="libnut"
2416 libnut_muxer_deps="libnut"
2417 matroska_audio_muxer_select="matroska_muxer"
2418 matroska_demuxer_select="riffdec"
2419 matroska_demuxer_suggest="bzlib lzo zlib"
2420 matroska_muxer_select="riffenc"
2421 mmf_muxer_select="riffenc"
2422 mov_demuxer_select="riffdec"
2423 mov_demuxer_suggest="zlib"
2424 mov_muxer_select="riffenc rtpenc_chain ac3_parser"
2425 mp3_demuxer_select="mpegaudio_parser"
2426 mp4_muxer_select="mov_muxer"
2427 mpegts_muxer_select="adts_muxer latm_muxer"
2428 mpegtsraw_demuxer_select="mpegts_demuxer"
2429 mxf_d10_muxer_select="mxf_muxer"
2430 nut_muxer_select="riffenc"
2431 nuv_demuxer_select="riffdec"
2432 oga_muxer_select="ogg_muxer"
2433 ogg_demuxer_select="golomb"
2434 opus_muxer_select="ogg_muxer"
2435 psp_muxer_select="mov_muxer"
2436 rtp_demuxer_select="sdp_demuxer"
2437 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2438 rtsp_demuxer_select="http_protocol rtpdec"
2439 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2440 sap_demuxer_select="sdp_demuxer"
2441 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2442 sdp_demuxer_select="rtpdec"
2443 smoothstreaming_muxer_select="ismv_muxer"
2444 spdif_muxer_select="aac_parser"
2445 spx_muxer_select="ogg_muxer"
2446 tak_demuxer_select="tak_parser"
2447 tg2_muxer_select="mov_muxer"
2448 tgp_muxer_select="mov_muxer"
2449 vobsub_demuxer_select="mpegps_demuxer"
2450 w64_demuxer_select="wav_demuxer"
2451 w64_muxer_select="wav_muxer"
2452 wav_demuxer_select="riffdec"
2453 wav_muxer_select="riffenc"
2454 webm_muxer_select="riffenc"
2455 wtv_demuxer_select="riffdec"
2456 wtv_muxer_select="riffenc"
2457 xmv_demuxer_select="riffdec"
2458 xwma_demuxer_select="riffdec"
2461 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2462 alsa_outdev_deps="alsa_asoundlib_h"
2463 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia -framework CoreGraphics"
2464 avfoundation_indev_select="avfoundation"
2465 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2466 caca_outdev_deps="libcaca"
2467 decklink_outdev_deps="decklink pthreads"
2468 decklink_outdev_extralibs="-lstdc++"
2469 decklink_indev_deps="decklink pthreads"
2470 decklink_indev_extralibs="-lstdc++"
2471 dshow_indev_deps="IBaseFilter"
2472 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2473 dv1394_indev_deps="dv1394"
2474 dv1394_indev_select="dv_demuxer"
2475 fbdev_indev_deps="linux_fb_h"
2476 fbdev_outdev_deps="linux_fb_h"
2477 gdigrab_indev_deps="CreateDIBSection"
2478 gdigrab_indev_extralibs="-lgdi32"
2479 gdigrab_indev_select="bmp_decoder"
2480 iec61883_indev_deps="libiec61883"
2481 jack_indev_deps="jack_jack_h sem_timedwait"
2482 lavfi_indev_deps="avfilter"
2483 libcdio_indev_deps="libcdio"
2484 libdc1394_indev_deps="libdc1394"
2485 libv4l2_indev_deps="libv4l2"
2486 openal_indev_deps="openal"
2487 opengl_outdev_deps="opengl"
2488 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2489 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2490 pulse_indev_deps="libpulse"
2491 pulse_outdev_deps="libpulse"
2492 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2493 qtkit_indev_select="qtkit"
2494 sdl_outdev_deps="sdl"
2495 sndio_indev_deps="sndio_h"
2496 sndio_outdev_deps="sndio_h"
2497 v4l_indev_deps="linux_videodev_h"
2498 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2499 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2500 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2501 vfwcap_indev_extralibs="-lavicap32"
2502 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2503 xv_outdev_extralibs="-lXv -lX11 -lXext"
2504 x11grab_indev_deps="x11grab"
2505 x11grab_xcb_indev_deps="libxcb"
2508 bluray_protocol_deps="libbluray"
2509 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2510 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2511 ffrtmpcrypt_protocol_select="tcp_protocol"
2512 ffrtmphttp_protocol_deps="!librtmp_protocol"
2513 ffrtmphttp_protocol_select="http_protocol"
2514 ftp_protocol_select="tcp_protocol"
2515 gopher_protocol_select="network"
2516 http_protocol_select="tcp_protocol"
2517 httpproxy_protocol_select="tcp_protocol"
2518 https_protocol_select="tls_protocol"
2519 icecast_protocol_select="http_protocol"
2520 librtmp_protocol_deps="librtmp"
2521 librtmpe_protocol_deps="librtmp"
2522 librtmps_protocol_deps="librtmp"
2523 librtmpt_protocol_deps="librtmp"
2524 librtmpte_protocol_deps="librtmp"
2525 libsmbclient_protocol_deps="libsmbclient gplv3"
2526 libssh_protocol_deps="libssh"
2527 mmsh_protocol_select="http_protocol"
2528 mmst_protocol_select="network"
2529 rtmp_protocol_deps="!librtmp_protocol"
2530 rtmp_protocol_select="tcp_protocol"
2531 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2532 rtmps_protocol_deps="!librtmp_protocol"
2533 rtmps_protocol_select="tls_protocol"
2534 rtmpt_protocol_select="ffrtmphttp_protocol"
2535 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2536 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2537 rtp_protocol_select="udp_protocol"
2538 sctp_protocol_deps="struct_sctp_event_subscribe"
2539 sctp_protocol_select="network"
2540 srtp_protocol_select="rtp_protocol"
2541 tcp_protocol_select="network"
2542 tls_protocol_deps_any="openssl gnutls"
2543 tls_protocol_select="tcp_protocol"
2544 udp_protocol_select="network"
2545 udplite_protocol_select="network"
2546 unix_protocol_deps="sys_un_h"
2547 unix_protocol_select="network"
2550 amovie_filter_deps="avcodec avformat"
2551 aresample_filter_deps="swresample"
2552 ass_filter_deps="libass"
2553 asyncts_filter_deps="avresample"
2554 atempo_filter_deps="avcodec"
2555 atempo_filter_select="rdft"
2556 azmq_filter_deps="libzmq"
2557 blackframe_filter_deps="gpl"
2558 boxblur_filter_deps="gpl"
2559 bs2b_filter_deps="libbs2b"
2560 colormatrix_filter_deps="gpl"
2561 cropdetect_filter_deps="gpl"
2562 delogo_filter_deps="gpl"
2563 deshake_filter_select="pixelutils"
2564 drawtext_filter_deps="libfreetype"
2565 ebur128_filter_deps="gpl"
2566 flite_filter_deps="libflite"
2567 frei0r_filter_deps="frei0r dlopen"
2568 frei0r_filter_extralibs='$ldl'
2569 frei0r_src_filter_deps="frei0r dlopen"
2570 frei0r_src_filter_extralibs='$ldl'
2571 geq_filter_deps="gpl"
2572 histeq_filter_deps="gpl"
2573 hqdn3d_filter_deps="gpl"
2574 interlace_filter_deps="gpl"
2575 kerndeint_filter_deps="gpl"
2576 ladspa_filter_deps="ladspa dlopen"
2577 ladspa_filter_extralibs='$ldl'
2578 mcdeint_filter_deps="avcodec gpl"
2579 movie_filter_deps="avcodec avformat"
2580 mp_filter_deps="gpl avcodec swscale inline_asm"
2581 mpdecimate_filter_deps="gpl"
2582 mpdecimate_filter_select="pixelutils"
2583 mptestsrc_filter_deps="gpl"
2584 negate_filter_deps="lut_filter"
2585 perspective_filter_deps="gpl"
2586 ocv_filter_deps="libopencv"
2587 owdenoise_filter_deps="gpl"
2588 pan_filter_deps="swresample"
2589 phase_filter_deps="gpl"
2590 pp_filter_deps="gpl postproc"
2591 pullup_filter_deps="gpl"
2592 removelogo_filter_deps="avcodec avformat swscale"
2593 resample_filter_deps="avresample"
2594 sab_filter_deps="gpl swscale"
2595 scale_filter_deps="swscale"
2596 select_filter_select="pixelutils"
2597 smartblur_filter_deps="gpl swscale"
2598 showspectrum_filter_deps="avcodec"
2599 showspectrum_filter_select="rdft"
2600 spp_filter_deps="gpl avcodec"
2601 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2602 stereo3d_filter_deps="gpl"
2603 subtitles_filter_deps="avformat avcodec libass"
2604 super2xsai_filter_deps="gpl"
2605 tinterlace_filter_deps="gpl"
2606 vidstabdetect_filter_deps="libvidstab"
2607 vidstabtransform_filter_deps="libvidstab"
2608 pixfmts_super2xsai_test_deps="super2xsai_filter"
2609 tinterlace_merge_test_deps="tinterlace_filter"
2610 tinterlace_pad_test_deps="tinterlace_filter"
2611 zmq_filter_deps="libzmq"
2612 zoompan_filter_deps="swscale"
2615 avio_reading="avformat avcodec avutil"
2616 avcodec_example_deps="avcodec avutil"
2617 decoding_encoding_example_deps="avcodec avformat avutil"
2618 demuxing_decoding_example_deps="avcodec avformat avutil"
2619 extract_mvs_example_deps="avcodec avformat avutil"
2620 filter_audio_example_deps="avfilter avutil"
2621 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2622 filtering_video_example_deps="avfilter avcodec avformat avutil"
2623 metadata_example_deps="avformat avutil"
2624 muxing_example_deps="avcodec avformat avutil swscale"
2625 remuxing_example_deps="avcodec avformat avutil"
2626 resampling_audio_example_deps="avutil swresample"
2627 scaling_video_example_deps="avutil swscale"
2628 transcode_aac_example_deps="avcodec avformat swresample"
2629 transcoding_example_deps="avfilter avcodec avformat avutil"
2631 # libraries, in linking order
2632 avcodec_deps="avutil"
2633 avdevice_deps="avformat avcodec avutil"
2634 avfilter_deps="avutil"
2635 avformat_deps="avcodec avutil"
2636 avresample_deps="avutil"
2637 postproc_deps="avutil gpl"
2638 swresample_deps="avutil"
2639 swscale_deps="avutil"
2642 ffmpeg_deps="avcodec avfilter avformat swresample"
2643 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2645 setpts_filter trim_filter"
2646 ffplay_deps="avcodec avformat swscale swresample sdl"
2647 ffplay_libs='$sdl_libs'
2648 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2649 ffprobe_deps="avcodec avformat"
2650 ffserver_deps="avformat fork sarestart"
2651 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2654 podpages_deps="perl"
2655 manpages_deps="perl pod2man"
2656 htmlpages_deps="perl"
2657 htmlpages_deps_any="makeinfo_html texi2html"
2658 txtpages_deps="perl makeinfo"
2659 doc_deps_any="manpages htmlpages podpages txtpages"
2661 # default parameters
2663 logfile="config.log"
2665 # installation paths
2666 prefix_default="/usr/local"
2667 bindir_default='${prefix}/bin'
2668 datadir_default='${prefix}/share/ffmpeg'
2669 docdir_default='${prefix}/share/doc/ffmpeg'
2670 incdir_default='${prefix}/include'
2671 libdir_default='${prefix}/lib'
2672 mandir_default='${prefix}/share/man'
2673 shlibdir_default="$libdir_default"
2679 host_cc_default="gcc"
2681 doxygen_default="doxygen"
2686 pkg_config_default=pkg-config
2687 ranlib_default="ranlib"
2688 strip_default="strip"
2689 yasmexe_default="yasm"
2690 windres_default="windres"
2693 target_os_default=$(tolower $(uname -s))
2694 host_os=$target_os_default
2697 if test "$target_os_default" = aix; then
2698 arch_default=$(uname -p)
2699 strip_default="strip -X32_64"
2701 arch_default=$(uname -m)
2706 # configurable options
2707 enable $PROGRAM_LIST
2708 enable $DOCUMENT_LIST
2709 enable $EXAMPLE_LIST
2710 enable $(filter_out avresample $LIBRARY_LIST)
2716 enable faan faandct faanidct
2717 enable optimizations
2718 enable runtime_cpudetect
2719 enable safe_bitstream_reader
2721 enable swscale_alpha
2723 sws_max_filter_size_default=256
2724 set_default sws_max_filter_size
2726 # Enable hwaccels by default.
2727 enable dxva2 vaapi vda vdpau xvmc
2731 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2734 FULLNAME='$(NAME)$(BUILDSUF)'
2735 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2738 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2739 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2740 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2741 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2742 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2743 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2765 host_cflags_filter=echo
2766 host_ldflags_filter=echo
2768 target_path='$(CURDIR)'
2770 # since the object filename is not given with the -MM flag, the compiler
2771 # is only able to print the basename, and we must add the path ourselves
2772 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2776 if test -f configure; then
2779 source_path=$(cd $(dirname "$0"); pwd)
2780 echo "$source_path" | grep -q '[[:blank:]]' &&
2781 die "Out of tree builds are impossible with whitespace in source path."
2782 test -e "$source_path/config.h" &&
2783 die "Out of tree builds are impossible with config.h in source dir."
2790 FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2796 file=$source_path/$3
2797 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2800 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2801 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2802 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2803 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2804 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2805 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2806 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2807 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2808 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2809 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2810 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2826 for n in $COMPONENT_LIST; do
2827 v=$(toupper ${n%s})_LIST
2829 eval ${n}_if_any="\$$v"
2832 enable $ARCH_EXT_LIST
2835 echo "Unknown option \"$1\"."
2836 echo "See $0 --help for available options."
2841 cat | tr ' ' '\n' | sort | pr -r -3 -t
2847 echo $* | sed s/$suffix//g | print_3_columns
2859 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2860 echo "prob ${prob:-0.5}"
2868 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2869 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2878 --extra-ldexeflags=*)
2879 add_ldexeflags $optval
2882 add_extralibs $optval
2885 disable $INDEV_LIST $OUTDEV_LIST
2888 debuglevel="$optval"
2891 disable $PROGRAM_LIST
2893 --disable-everything)
2894 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2897 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2898 disable $LIBRARY_LIST $PROGRAM_LIST doc
2900 --enable-random|--disable-random)
2901 action=${opt%%-random}
2902 do_random ${action#--} $COMPONENT_LIST
2904 --enable-random=*|--disable-random=*)
2905 action=${opt%%-random=*}
2906 do_random ${action#--} $optval
2908 --enable-*=*|--disable-*=*)
2909 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2910 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2911 eval list=\$$(toupper $thing)_LIST
2912 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2913 list=$(filter "$name" $list)
2914 [ "$list" = "" ] && warn "Option $opt did not match anything"
2917 --enable-?*|--disable-?*)
2918 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2919 if is_in $option $COMPONENT_LIST; then
2920 test $action = disable && action=unset
2921 eval $action \$$(toupper ${option%s})_LIST
2922 elif is_in $option $CMDLINE_SELECT; then
2929 NAME="${opt#--list-}"
2930 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2932 eval show_list $NAME \$$(toupper $NAME)_LIST
2934 --help|-h) show_help
2936 --fatal-warnings) enable fatal_warnings
2939 optname="${opt%%=*}"
2940 optname="${optname#--}"
2941 optname=$(echo "$optname" | sed 's/-/_/g')
2942 if is_in $optname $CMDLINE_SET; then
2943 eval $optname='$optval'
2944 elif is_in $optname $CMDLINE_APPEND; then
2945 append $optname "$optval"
2953 disabled logging && logfile=/dev/null
2955 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2958 test -n "$cross_prefix" && enable cross_compile
2960 if enabled cross_compile; then
2961 test -n "$arch" && test -n "$target_os" ||
2962 die "Must specify target arch and OS when cross-compiling"
2965 ar_default="${cross_prefix}${ar_default}"
2966 cc_default="${cross_prefix}${cc_default}"
2967 cxx_default="${cross_prefix}${cxx_default}"
2968 nm_default="${cross_prefix}${nm_default}"
2969 pkg_config_default="${cross_prefix}${pkg_config_default}"
2970 ranlib_default="${cross_prefix}${ranlib_default}"
2971 strip_default="${cross_prefix}${strip_default}"
2972 windres_default="${cross_prefix}${windres_default}"
2974 sysinclude_default="${sysroot}/usr/include"
2976 test -n "$valgrind" && toolchain="valgrind-memcheck"
2978 case "$toolchain" in
2981 add_cflags -fsanitize=address
2982 add_ldflags -fsanitize=address
2986 add_cflags -fsanitize=thread -pie
2987 add_ldflags -fsanitize=thread -pie
2991 add_cflags -fsanitize=undefined
2992 add_ldflags -fsanitize=undefined
2996 add_cflags -fsanitize=address
2997 add_ldflags -fsanitize=address
3001 add_cflags -fsanitize=thread -pie -fPIC
3002 add_ldflags -fsanitize=thread -pie -fPIC
3006 add_cflags -fsanitize=undefined
3007 add_ldflags -fsanitize=undefined
3010 target_exec_default=${valgrind:-"valgrind"}
3011 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3014 target_exec_default=${valgrind:-"valgrind"}
3015 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3018 # Check whether the current MSVC version needs the C99 converter.
3019 # From MSVC 2013 (compiler major version 18) onwards, it does actually
3020 # support enough of C99 to build ffmpeg. Default to the new
3021 # behaviour if the regexp was unable to match anything, since this
3022 # successfully parses the version number of existing supported
3023 # versions that require the converter (MSVC 2010 and 2012).
3024 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3025 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3028 cc_default="c99wrap cl"
3031 nm_default="dumpbin -symbols"
3033 target_os_default="win32"
3034 # Use a relative path for TMPDIR. This makes sure all the
3035 # ffconf temp files are written with a relative path, avoiding
3036 # issues with msys/win32 path conversion for MSVC parameters
3037 # such as -Fo<file> or -out:<file>.
3043 nm_default="dumpbin -symbols"
3045 target_os_default="win32"
3049 add_cflags -fprofile-arcs -ftest-coverage
3050 add_ldflags -fprofile-arcs -ftest-coverage
3053 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3054 add_cflags -fno-strict-overflow -fstack-protector-all
3055 add_ldflags -Wl,-z,relro -Wl,-z,now
3058 die "Unknown toolchain $toolchain"
3062 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3063 target_exec target_os yasmexe
3064 enabled cross_compile || host_cc_default=$cc
3067 if ! $pkg_config --version >/dev/null 2>&1; then
3068 warn "$pkg_config not found, library detection may fail."
3072 if test $doxygen != $doxygen_default && \
3073 ! $doxygen --version >/dev/null 2>&1; then
3074 warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3079 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3083 EXESUF=$(exesuf $target_os)
3084 HOSTEXESUF=$(exesuf $host_os)
3086 # set temporary file name
3087 : ${TMPDIR:=$TEMPDIR}
3091 if [ -n "$tempprefix" ] ; then
3093 echo $tempprefix.${HOSTNAME}.${UID}
3095 elif ! check_cmd mktemp -u XXXXXX; then
3096 # simple replacement for missing mktemp
3097 # NOT SAFE FOR GENERAL USE
3099 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3104 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3105 (set -C; exec > $tmp) 2>/dev/null ||
3106 die "Unable to create temporary file in $TMPDIR."
3107 append TMPFILES $tmp
3111 trap 'rm -f -- $TMPFILES' EXIT
3116 tmpfile TMPE $EXESUF
3128 # make sure we can execute files in $TMPDIR
3129 cat > $TMPSH 2>> $logfile <<EOF
3132 chmod +x $TMPSH >> $logfile 2>&1
3133 if ! $TMPSH >> $logfile 2>&1; then
3135 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3136 variable to another directory and make sure that it is not mounted noexec.
3138 die "Sanity test failed."
3144 # Filter out MSVC cl.exe options from cflags that shouldn't
3145 # be passed to gas-preprocessor
3155 -std=c99) echo -c99 ;;
3156 -mcpu=*) echo -arch ${flag#*=} ;;
3157 -mieee) echo -ieee ;;
3158 -O*|-fast) echo $flag ;;
3159 -fno-math-errno) echo -assume nomath_errno ;;
3161 -Wall) echo -msg_enable level2 ;;
3162 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3163 -Wl,*) echo $flag ;;
3173 -Wno-switch) echo -Wno-switch-enum ;;
3174 -Wno-format-zero-length) ;;
3175 -Wdisabled-optimization) ;;
3176 -Wno-pointer-sign) echo -Wno-other ;;
3182 msvc_common_flags(){
3185 # In addition to specifying certain flags under the compiler
3186 # specific filters, they must be specified here as well or else the
3187 # generic catch all at the bottom will print the original flag.
3191 -fomit-frame-pointer) ;;
3195 -fno-signed-zeros) ;;
3199 -lz) echo zlib.lib ;;
3200 -lavifil32) echo vfw32.lib ;;
3201 -lavicap32) echo vfw32.lib user32.lib ;;
3202 -l*) echo ${flag#-l}.lib ;;
3209 msvc_common_flags "$@"
3212 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3213 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3214 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3222 msvc_common_flags "$@"
3225 # Despite what Intel's documentation says -Wall, which is supported
3226 # on Windows, does enable remarks so disable them here.
3227 -Wall) echo $flag -Qdiag-disable:remark ;;
3228 -std=c99) echo -Qstd=c99 ;;
3246 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3247 -fomit-frame-pointer) echo -Mnoframe ;;
3258 case "${flag#*=}" in
3259 native) echo -xtarget=native ;;
3260 v9|niagara) echo -xarch=sparc ;;
3261 ultrasparc) echo -xarch=sparcvis ;;
3262 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3263 i586|pentium) echo -xchip=pentium ;;
3264 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3265 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3266 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3267 pentium4*) echo -xtarget=pentium4 ;;
3268 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3269 *-sse3) echo -xarch=sse3 ;;
3270 core2) echo -xarch=ssse3 -xchip=core2 ;;
3271 bonnell) echo -xarch=ssse3 ;;
3272 corei7|nehalem) echo -xtarget=nehalem ;;
3273 westmere) echo -xtarget=westmere ;;
3274 silvermont) echo -xarch=sse4_2 ;;
3275 corei7-avx|sandybridge) echo -xtarget=sandybridge ;;
3276 core-avx*|ivybridge|haswell|broadwell)
3278 amdfam10|barcelona) echo -xtarget=barcelona ;;
3279 btver1) echo -xarch=amdsse4a ;;
3280 btver2|bdver*) echo -xarch=avx ;;
3281 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3282 k8|opteron|athlon64|athlon-fx)
3283 echo -xarch=sse2a ;;
3284 athlon*) echo -xarch=pentium_proa ;;
3287 -std=c99) echo -xc99 ;;
3288 -fomit-frame-pointer) echo -xregs=frameptr ;;
3289 -fPIC) echo -KPIC -xcode=pic32 ;;
3290 -W*,*) echo $flag ;;
3291 -f*-*|-W*|-mimpure-text) ;;
3302 case "${flag#*=}" in
3303 armv7-a|cortex-a*) echo -mv=7a8 ;;
3304 armv7-r|cortex-r*) echo -mv=7r4 ;;
3305 armv7-m|cortex-m*) echo -mv=7m3 ;;
3306 armv6*|arm11*) echo -mv=6 ;;
3307 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3309 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3312 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3313 -mfpu=vfp) echo --float_support=vfpv2 ;;
3314 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3315 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3316 -msoft-float) echo --float_support=vfplib ;;
3317 -O[0-3]|-mf=*) echo $flag ;;
3319 -pds=*) echo $flag ;;
3320 -D*|-I*) echo $flag ;;
3321 --gcc|--abi=*) echo $flag ;;
3331 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3332 unset _ld_o _ldflags _ld_lib _ld_path
3333 unset _depflags _DEPCMD _DEPFLAGS
3336 if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3337 true # no-op to avoid reading stdin in following checks
3338 elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3340 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3341 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3342 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3345 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3347 gcc_version=$($_cc --version | head -n1)
3348 gcc_basever=$($_cc -dumpversion)
3349 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3350 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3351 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3352 if ! $_cc -dumpversion | grep -q '^2\.'; then
3353 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3357 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3359 _ident=$($_cc --version | head -n1)
3364 _flags_filter=icc_flags
3365 elif $_cc -v 2>&1 | grep -q xlc; then
3367 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3369 _cflags_size='-O5 -qcompact'
3370 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3372 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3374 _cflags_speed='-fast'
3376 _flags_filter=ccc_flags
3377 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3378 test -d "$sysroot" || die "No valid sysroot specified."
3380 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3381 armcc_conf="$PWD/armcc.conf"
3382 $_cc --arm_linux_configure \
3383 --arm_linux_config_file="$armcc_conf" \
3384 --configure_sysroot="$sysroot" \
3385 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3386 die "Error creating armcc configuration file."
3387 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3388 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3389 as_default="${cross_prefix}gcc"
3393 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3395 _ident=$($_cc -version | head -n1 | tr -s ' ')
3396 _flags='--gcc --abi=eabi -me'
3399 _depflags='-ppa -ppd=$(@:.o=.d)'
3400 _cflags_speed='-O3 -mf=5'
3401 _cflags_size='-O3 -mf=2'
3402 _flags_filter=tms470_flags
3403 elif $_cc -v 2>&1 | grep -q clang; then
3405 _ident=$($_cc --version | head -n1)
3406 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3409 elif $_cc -V 2>&1 | grep -q Sun; then
3411 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3412 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3413 _DEPFLAGS='-xM1 -xc99'
3416 _cflags_size='-O5 -xspace'
3417 _flags_filter=suncc_flags
3418 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3420 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3421 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3424 _flags_filter='filter_out -Wdisabled-optimization'
3425 elif $_cc -v 2>&1 | grep -q Open64; then
3427 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3428 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3431 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3432 elif $_cc -V 2>&1 | grep -q Portland; then
3434 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3435 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3436 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3437 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3439 _flags_filter=pgi_flags
3440 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3442 _ident=$($_cc | head -n1)
3443 # 4509: "This form of conditional instruction is deprecated"
3444 _flags="-nologo -ignore 4509"
3445 _flags_filter=armasm_flags
3446 elif $_cc 2>&1 | grep -q Microsoft; then
3448 _ident=$($cc 2>&1 | head -n1)
3449 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3450 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3453 if $_cc 2>&1 | grep -q Linker; then
3460 _flags_filter=msvc_flags
3462 _ld_path='-libpath:'
3464 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3465 if [ $pfx = hostcc ]; then
3466 append _cflags -Dsnprintf=_snprintf
3469 elif $_cc 2>&1 | grep -q Intel; then
3471 _ident=$($cc 2>&1 | head -n1)
3472 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3473 # Not only is O3 broken on 13.x+ but it is slower on all previous
3474 # versions (tested) as well.
3476 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3477 if $_cc 2>&1 | grep -q Linker; then
3484 _flags_filter=icl_flags
3486 _ld_path='-libpath:'
3487 # -Qdiag-error to make icl error when seeing certain unknown arguments
3488 _flags='-nologo -Qdiag-error:4044,10157'
3489 # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3490 # with MSVC which enables it by default.
3491 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3492 if [ $pfx = hostcc ]; then
3493 append _cflags -Dsnprintf=_snprintf
3495 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3497 _ident=$($_cc --version | head -n1)
3501 _flags_filter=cparser_flags
3504 eval ${pfx}_type=\$_type
3505 eval ${pfx}_ident=\$_ident
3509 eval ${1}_C=\${_cc_c-\${${1}_C}}
3510 eval ${1}_E=\${_cc_e-\${${1}_E}}
3511 eval ${1}_O=\${_cc_o-\${${1}_O}}
3513 if [ -n "$_depflags" ]; then
3514 eval ${1}_DEPFLAGS=\$_depflags
3516 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3517 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3518 eval DEP${1}FLAGS=\$_flags
3523 cflags_filter=$_flags_filter
3524 cflags_speed=$_cflags_speed
3525 cflags_size=$_cflags_size
3526 cflags_noopt=$_cflags_noopt
3527 add_cflags $_flags $_cflags
3528 cc_ldflags=$_ldflags
3531 probe_cc hostcc "$host_cc"
3532 host_cflags_filter=$_flags_filter
3533 add_host_cflags $_flags $_cflags
3536 test -n "$cc_type" && enable $cc_type ||
3537 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3539 : ${as_default:=$cc}
3540 : ${dep_cc_default:=$cc}
3541 : ${ld_default:=$cc}
3542 : ${host_ld_default:=$host_cc}
3543 set_default ar as dep_cc ld host_ld windres
3546 asflags_filter=$_flags_filter
3547 add_asflags $_flags $_cflags
3551 ldflags_filter=$_flags_filter
3552 add_ldflags $_flags $_ldflags
3553 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3555 LD_LIB=${_ld_lib-$LD_LIB}
3556 LD_PATH=${_ld_path-$LD_PATH}
3558 probe_cc hostld "$host_ld"
3559 host_ldflags_filter=$_flags_filter
3560 add_host_ldflags $_flags $_ldflags
3561 HOSTLD_O=${_ld_o-$HOSTLD_O}
3563 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3564 probe_cc depcc "$dep_cc"
3565 CCDEP=${_DEPCMD:-$DEPCMD}
3566 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3570 if $ar 2>&1 | grep -q Microsoft; then
3573 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3576 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3577 arflags='-Xany -r -c'
3584 add_cflags $extra_cflags
3585 add_cxxflags $extra_cxxflags
3586 add_asflags $extra_cflags
3588 if test -n "$sysroot"; then
3591 add_cppflags --sysroot="$sysroot"
3592 add_ldflags --sysroot="$sysroot"
3593 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3594 add_cppflags -isysroot "$sysroot"
3595 add_ldflags -isysroot "$sysroot"
3598 add_cppflags -I"$sysinclude"
3599 add_ldflags --sysroot="$sysroot"
3604 if test "$cpu" = host; then
3605 enabled cross_compile &&
3606 die "--cpu=host makes no sense when cross-compiling."
3611 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3613 s/.*$1=\\([^ ]*\\).*/\\1/
3618 cpu=$(check_native -march || check_native -mcpu)
3622 test "${cpu:-host}" = host &&
3623 die "--cpu=host not supported with compiler $cc"
3626 # Deal with common $arch aliases
3640 "Power Macintosh"|ppc*|powerpc*)
3655 i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3660 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3663 # Add processor-specific flags
3664 if enabled aarch64; then
3668 cpuflags="-march=$cpu"
3671 cpuflags="-mcpu=$cpu"
3675 elif enabled alpha; then
3677 cpuflags="-mcpu=$cpu"
3679 elif enabled arm; then
3682 check_cpp_condition stddef.h \
3683 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3688 if check_arm_arch 4; then echo armv4;
3689 elif check_arm_arch 4T; then echo armv4t;
3690 elif check_arm_arch 5; then echo armv5;
3691 elif check_arm_arch 5E; then echo armv5e;
3692 elif check_arm_arch 5T; then echo armv5t;
3693 elif check_arm_arch 5TE; then echo armv5te;
3694 elif check_arm_arch 5TEJ; then echo armv5te;
3695 elif check_arm_arch 6; then echo armv6;
3696 elif check_arm_arch 6J; then echo armv6j;
3697 elif check_arm_arch 6K; then echo armv6k;
3698 elif check_arm_arch 6Z; then echo armv6z;
3699 elif check_arm_arch 6ZK; then echo armv6zk;
3700 elif check_arm_arch 6T2; then echo armv6t2;
3701 elif check_arm_arch 7; then echo armv7;
3702 elif check_arm_arch 7A 7_A; then echo armv7-a;
3703 elif check_arm_arch 7R 7_R; then echo armv7-r;
3704 elif check_arm_arch 7M 7_M; then echo armv7-m;
3705 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3706 elif check_arm_arch 8A 8_A; then echo armv8-a;
3710 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3714 cpuflags="-march=$cpu"
3715 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3718 cpuflags="-mcpu=$cpu"
3720 cortex-a*) subarch=armv7a ;;
3721 cortex-r*) subarch=armv7r ;;
3722 cortex-m*) enable thumb; subarch=armv7m ;;
3723 arm11*) subarch=armv6 ;;
3724 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3725 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3726 *) subarch=$(probe_arm_arch) ;;
3732 armv5t*) enable fast_clz ;;
3735 disabled fast_unaligned || enable fast_unaligned
3739 elif enabled avr32; then
3744 cpuflags="-mpart=$cpu"
3748 cpuflags="-march=$cpu"
3752 cpuflags="-mcpu=$cpu"
3756 cpuflags="-march=$cpu"
3760 elif enabled bfin; then
3762 cpuflags="-mcpu=$cpu"
3764 elif enabled mips; then
3766 cpuflags="-march=$cpu"
3782 24kef*|34kf*|1004kf*)
3790 elif enabled ppc; then
3795 case $(tolower $cpu) in
3796 601|ppc601|powerpc601)
3797 cpuflags="-mcpu=601"
3800 603*|ppc603*|powerpc603*)
3801 cpuflags="-mcpu=603"
3804 604*|ppc604*|powerpc604*)
3805 cpuflags="-mcpu=604"
3808 g3|75*|ppc75*|powerpc75*)
3809 cpuflags="-mcpu=750"
3812 g4|745*|ppc745*|powerpc745*)
3813 cpuflags="-mcpu=7450"
3815 74*|ppc74*|powerpc74*)
3816 cpuflags="-mcpu=7400"
3818 g5|970|ppc970|powerpc970)
3819 cpuflags="-mcpu=970"
3822 cpuflags="-mcpu=$cpu"
3825 cpuflags="-mcpu=cell"
3829 cpuflags="-mcpu=e500mc"
3833 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3838 cpuflags="-mcpu=8540 -mhard-float"
3844 elif enabled sparc; then
3847 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3848 cpuflags="-mcpu=$cpu"
3850 ultrasparc*|niagara[234])
3851 cpuflags="-mcpu=$cpu"
3855 elif enabled x86; then
3859 cpuflags="-march=$cpu"
3863 # targets that do NOT support nopl and conditional mov (cmov)
3864 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3865 cpuflags="-march=$cpu"
3868 # targets that do support nopl and conditional mov (cmov)
3869 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3870 |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3871 cpuflags="-march=$cpu"
3875 # targets that do support conditional mov but on which it's slow
3876 pentium4|pentium4m|prescott|nocona)
3877 cpuflags="-march=$cpu"
3885 if [ "$cpu" != generic ]; then
3886 add_cflags $cpuflags
3887 add_asflags $cpuflags
3890 # compiler sanity check
3892 int main(void){ return 0; }
3894 if test "$?" != 0; then
3895 echo "$cc is unable to create an executable file."
3896 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3897 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3898 echo "Only do this if you know what cross compiling means."
3900 die "C compiler test failed."
3903 add_cppflags -D_ISOC99_SOURCE
3904 add_cxxflags -D__STDC_CONSTANT_MACROS
3905 check_cflags -std=c99
3906 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3909 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3913 add_host_cppflags -D_ISOC99_SOURCE
3914 check_host_cflags -std=c99
3915 check_host_cflags -Wall
3916 check_host_cflags -O3
3922 check_code cc "" "int test[2*($expr) - 1]" &&
3923 subarch=$arch64 || subarch=$arch32
3931 check_64bit mips mips64 '_MIPS_SIM > 1'
3935 check_64bit parisc parisc64 'sizeof(void *) > 4'
3939 check_64bit ppc ppc64 'sizeof(void *) > 4'
3943 check_64bit s390 s390x 'sizeof(void *) > 4'
3947 check_64bit sparc sparc64 'sizeof(void *) > 4'
3951 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3952 if test "$subarch" = "x86_64"; then
3957 check_cc <<EOF && subarch="ppc64"
3958 int test[(int)sizeof(char*) - 7];
3964 enabled spic && enable_weak pic
3970 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3971 enabled shared && add_ldflags -Wl,-brtl
3975 SLIB_INSTALL_NAME='$(SLIBNAME)'
3977 # soname not set on purpose
3981 prefix_default="/boot/common"
3982 network_extralibs="-lnetwork"
3986 SHFLAGS='-shared -Wl,-h,$$(@F)'
3987 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3988 network_extralibs="-lsocket -lnsl"
3989 # When using suncc to build, the Solaris linker will mark
3990 # an executable with each instruction set encountered by
3991 # the Solaris assembler. As our libraries contain their own
3992 # guards for processor-specific code, instead suppress
3993 # generation of the HWCAPS ELF section on Solaris x86 only.
3994 enabled_all suncc x86 &&
3995 echo "hwcap_1 = OVERRIDE;" > mapfile &&
3996 add_ldflags -Wl,-M,mapfile
3997 nm_default='nm -P -g'
4001 oss_indev_extralibs="-lossaudio"
4002 oss_outdev_extralibs="-lossaudio"
4003 enabled gcc || check_ldflags -Wl,-zmuldefs
4008 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4010 oss_indev_extralibs="-lossaudio"
4011 oss_outdev_extralibs="-lossaudio"
4019 add_extralibs -lpoll -lgnugetopt
4023 enabled ppc && add_asflags -force_cpusubtype_ALL
4024 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4025 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4027 add_ldflags -Wl,-dynamic,-search_paths_first
4029 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4030 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4032 enabled x86_64 && objformat="macho64"
4033 enabled_any pic shared ||
4034 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4037 if test $target_os = "mingw32ce"; then
4043 if enabled x86_64; then
4044 LIBTARGET="i386:x86-64"
4045 elif enabled arm; then
4048 enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4049 check_ldflags -Wl,--nxcompat
4050 check_ldflags -Wl,--dynamicbase
4051 enabled x86_32 && check_ldflags -Wl,--large-address-aware
4052 shlibdir_default="$bindir_default"
4055 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4056 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4057 dlltool="${cross_prefix}dlltool"
4058 if check_cmd lib.exe -list; then
4059 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4060 if enabled x86_64; then
4063 elif check_cmd $dlltool --version; then
4064 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)'