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, useful for drawtext filter [no]
198 --enable-frei0r enable frei0r video filtering [no]
199 --enable-gnutls enable gnutls, needed for https support
200 if openssl is not used [no]
201 --disable-iconv disable iconv [autodetect]
202 --enable-ladspa enable LADSPA audio filtering [no]
203 --enable-libaacplus enable AAC+ encoding via libaacplus [no]
204 --enable-libass enable libass subtitles rendering,
205 needed for subtitles and ass filter [no]
206 --enable-libbluray enable BluRay reading using libbluray [no]
207 --enable-libbs2b enable bs2b DSP library [no]
208 --enable-libcaca enable textual display using libcaca [no]
209 --enable-libcelt enable CELT decoding via libcelt [no]
210 --enable-libcdio enable audio CD grabbing with libcdio [no]
211 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
213 --enable-libfaac enable AAC encoding via libfaac [no]
214 --enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
215 --enable-libflite enable flite (voice synthesis) support via libflite [no]
216 --enable-libfreetype enable libfreetype, needed for drawtext filter [no]
217 --enable-libfribidi enable libfribidi, improves drawtext filter [no]
218 --enable-libgme enable Game Music Emu via libgme [no]
219 --enable-libgsm enable GSM de/encoding via libgsm [no]
220 --enable-libiec61883 enable iec61883 via libiec61883 [no]
221 --enable-libilbc enable iLBC de/encoding via libilbc [no]
222 --enable-libmodplug enable ModPlug via libmodplug [no]
223 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
224 --enable-libnut enable NUT (de)muxing via libnut,
225 native (de)muxer exists [no]
226 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
227 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
228 --enable-libopencv enable video filtering via libopencv [no]
229 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
230 --enable-libopus enable Opus de/encoding via libopus [no]
231 --enable-libpulse enable Pulseaudio input via libpulse [no]
232 --enable-libquvi enable quvi input via libquvi [no]
233 --enable-librtmp enable RTMP[E] support via librtmp [no]
234 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
235 --enable-libshine enable fixed-point MP3 encoding via libshine [no]
236 --enable-libsmbclient enable Samba protocol via libsmbclient [no]
237 --enable-libsoxr enable Include libsoxr resampling [no]
238 --enable-libspeex enable Speex de/encoding via libspeex [no]
239 --enable-libssh enable SFTP protocol via libssh [no]
240 --enable-libstagefright-h264 enable H.264 decoding via libstagefright [no]
241 --enable-libtheora enable Theora encoding via libtheora [no]
242 --enable-libtwolame enable MP2 encoding via libtwolame [no]
243 --enable-libutvideo enable Ut Video encoding and decoding via libutvideo [no]
244 --enable-libv4l2 enable libv4l2/v4l-utils [no]
245 --enable-libvidstab enable video stabilization using vid.stab [no]
246 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
247 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
248 --enable-libvorbis enable Vorbis en/decoding via libvorbis,
249 native implementation exists [no]
250 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
251 --enable-libwavpack enable wavpack encoding via libwavpack [no]
252 --enable-libwebp enable WebP encoding via libwebp [no]
253 --enable-libx264 enable H.264 encoding via x264 [no]
254 --enable-libx265 enable HEVC encoding via x265 [no]
255 --enable-libxavs enable AVS encoding via xavs [no]
256 --enable-libxcb enable X11 grabbing using XCB [auto]
257 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
258 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
259 --enable-libxcb-shape enable X11 grabbing shape rendering [auto]
260 --enable-libxvid enable Xvid encoding via xvidcore,
261 native MPEG-4/Xvid encoder exists [no]
262 --enable-libzmq enable message passing via libzmq [no]
263 --enable-libzvbi enable teletext support via libzvbi [no]
264 --disable-lzma disable lzma [autodetect]
265 --enable-decklink enable Blackmagick DeckLink I/O support [no]
266 --enable-openal enable OpenAL 1.1 capture support [no]
267 --enable-opencl enable OpenCL code
268 --enable-opengl enable OpenGL rendering [no]
269 --enable-openssl enable openssl, needed for https support
270 if gnutls is not used [no]
271 --disable-sdl disable sdl [autodetect]
272 --enable-x11grab enable X11 grabbing (legacy) [no]
273 --disable-xlib disable xlib [autodetect]
274 --disable-zlib disable zlib [autodetect]
277 --arch=ARCH select architecture [$arch]
278 --cpu=CPU select the minimum required CPU (affects
279 instruction selection, may crash on older CPUs)
280 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
281 --progs-suffix=SUFFIX program name suffix []
282 --enable-cross-compile assume a cross-compiler is used
283 --sysroot=PATH root of cross-build tree
284 --sysinclude=PATH location of cross-build system headers
285 --target-os=OS compiler targets OS [$target_os]
286 --target-exec=CMD command to run executables on target
287 --target-path=DIR path to view of build directory on target
288 --target-samples=DIR path to samples directory on target
289 --tempprefix=PATH force fixed dir/prefix instead of mktemp for checks
290 --toolchain=NAME set tool defaults according to NAME
291 --nm=NM use nm tool NM [$nm_default]
292 --ar=AR use archive tool AR [$ar_default]
293 --as=AS use assembler AS [$as_default]
294 --windres=WINDRES use windows resource compiler WINDRES [$windres_default]
295 --yasmexe=EXE use yasm-compatible assembler EXE [$yasmexe_default]
296 --cc=CC use C compiler CC [$cc_default]
297 --cxx=CXX use C compiler CXX [$cxx_default]
298 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
299 --ld=LD use linker LD [$ld_default]
300 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
301 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
302 --ranlib=RANLIB use ranlib RANLIB [$ranlib_default]
303 --doxygen=DOXYGEN use DOXYGEN to generate API doc [$doxygen_default]
304 --host-cc=HOSTCC use host C compiler HOSTCC
305 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
306 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
307 --host-ld=HOSTLD use host linker HOSTLD
308 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
309 --host-libs=HLIBS use libs HLIBS when linking for host
310 --host-os=OS compiler host OS [$target_os]
311 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
312 --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
313 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
314 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
315 --extra-libs=ELIBS add ELIBS [$ELIBS]
316 --extra-version=STRING version string suffix []
317 --optflags=OPTFLAGS override optimization-related compiler flags
318 --build-suffix=SUFFIX library name suffix []
319 --enable-pic build position-independent code
320 --enable-thumb compile for Thumb instruction set
321 --enable-lto use link-time optimization
323 Advanced options (experts only):
324 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
325 --disable-symver disable symbol versioning
326 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
327 --disable-safe-bitstream-reader
328 disable buffer boundary checking in bitreaders
329 (faster, but may crash)
330 --enable-memalign-hack emulate memalign, interferes with memory debuggers
331 --sws-max-filter-size=N the max filter size swscale uses [$sws_max_filter_size_default]
333 Optimization options (experts only):
334 --disable-asm disable all assembly optimizations
335 --disable-altivec disable AltiVec optimizations
336 --disable-amd3dnow disable 3DNow! optimizations
337 --disable-amd3dnowext disable 3DNow! extended optimizations
338 --disable-mmx disable MMX optimizations
339 --disable-mmxext disable MMXEXT optimizations
340 --disable-sse disable SSE optimizations
341 --disable-sse2 disable SSE2 optimizations
342 --disable-sse3 disable SSE3 optimizations
343 --disable-ssse3 disable SSSE3 optimizations
344 --disable-sse4 disable SSE4 optimizations
345 --disable-sse42 disable SSE4.2 optimizations
346 --disable-avx disable AVX optimizations
347 --disable-xop disable XOP optimizations
348 --disable-fma3 disable FMA3 optimizations
349 --disable-fma4 disable FMA4 optimizations
350 --disable-avx2 disable AVX2 optimizations
351 --disable-armv5te disable armv5te optimizations
352 --disable-armv6 disable armv6 optimizations
353 --disable-armv6t2 disable armv6t2 optimizations
354 --disable-vfp disable VFP optimizations
355 --disable-neon disable NEON optimizations
356 --disable-inline-asm disable use of inline assembly
357 --disable-yasm disable use of nasm/yasm assembly
358 --disable-mips32r2 disable MIPS32R2 optimizations
359 --disable-mipsdspr1 disable MIPS DSP ASE R1 optimizations
360 --disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations
361 --disable-mipsfpu disable floating point MIPS optimizations
362 --disable-fast-unaligned consider unaligned accesses slow
364 Developer options (useful when working on FFmpeg itself):
365 --disable-debug disable debugging symbols
366 --enable-debug=LEVEL set the debug level [$debuglevel]
367 --disable-optimizations disable compiler optimizations
368 --enable-extra-warnings enable more compiler warnings
369 --disable-stripping disable stripping of executables and shared libraries
370 --assert-level=level 0(default), 1 or 2, amount of assertion testing,
371 2 causes a slowdown at runtime.
372 --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
373 --valgrind=VALGRIND run "make fate" tests through valgrind to detect memory
374 leaks and errors, using the specified valgrind binary.
375 Cannot be combined with --target-exec
376 --enable-ftrapv Trap arithmetic overflows
377 --samples=PATH location of test samples for FATE, if not set use
378 \$FATE_SAMPLES at make invocation time.
379 --enable-neon-clobber-test check NEON registers for clobbering (should be
380 used only for debugging purposes)
381 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
382 should be used only for debugging purposes)
383 --enable-random randomly enable/disable components
385 --enable-random=LIST randomly enable/disable specific components or
386 --disable-random=LIST component groups. LIST is a comma-separated list
387 of NAME[:PROB] entries where NAME is a component
388 (group) and PROB the probability associated with
390 --random-seed=VALUE seed value for --enable/disable-random
392 NOTE: Object files are built at the place where configure is launched.
400 echo "$@" >> $logfile
405 pr -n -t $1 >> $logfile
416 WARNINGS="${WARNINGS}WARNING: $*\n"
423 If you think configure made a mistake, make sure you are using the latest
424 version from Git. If the latest version fails, report the problem to the
425 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
427 if disabled logging; then
429 Rerun configure with logging enabled (do not use --disable-logging), and
430 include the log this produces with your report.
434 Include the log file "$logfile" produced by configure as this will help
441 # Avoid locale weirdness, besides we really just want to translate ASCII.
443 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
447 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
451 echo "$*" | sed 's/["\\]/\\\0/g'
455 v=$(echo "$1" | sed "s/'/'\\\\''/g")
456 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
461 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//;s/\\r//g'
468 eval "case $v in $pat) echo $v ;; esac"
476 eval "case $v in $pat) ;; *) echo $v ;; esac"
483 for v; do eval $m; done
489 for v; do echo ${v}${suffix}; done
504 eval : \${$var:=$value}
509 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
515 eval $(sanitize_var_name "$var")='$*'
519 eval echo \$$(sanitize_var_name "$1")
524 eval level=\${${pvar}_level:=0}
525 eval ${pvar}_${level}="\$$pvar"
526 eval ${pvar}_level=$(($level+1))
532 eval level=\${${pvar}_level:-0}
533 test $level = 0 && continue
534 eval level=$(($level-1))
535 eval $pvar="\${${pvar}_${level}}"
536 eval ${pvar}_level=$level
537 eval unset ${pvar}_${level}
559 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
565 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
571 enabled $var && continue
572 eval sel="\$${var}_select"
573 eval sgs="\$${var}_suggest"
577 enable_deep_weak $sgs
589 disabled $var && continue
598 test "${1#!}" = "$1" && op== || op=!=
599 eval test "x\$${1#!}" $op "xyes"
603 test "${1#!}" = "$1" && op== || op=!=
604 eval test "x\$${1#!}" $op "xno"
609 enabled $opt || return 1
615 disabled $opt || return 1
621 enabled $opt && return 0
627 disabled $opt && return 0
634 eval : \${$opt:=\$${opt}_default}
642 [ $var = $value ] && return 0
650 enabled ${cfg}_checking && die "Circular dependency for $cfg."
651 disabled ${cfg}_checking && continue
652 enable ${cfg}_checking
655 eval dep_all="\$${cfg}_deps"
656 eval dep_any="\$${cfg}_deps_any"
657 eval dep_sel="\$${cfg}_select"
658 eval dep_sgs="\$${cfg}_suggest"
659 eval dep_ifa="\$${cfg}_if"
660 eval dep_ifn="\$${cfg}_if_any"
662 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
663 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
664 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
666 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
667 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
668 enabled_all $dep_all || disable $cfg
669 enabled_any $dep_any || disable $cfg
670 disabled_any $dep_sel && disable $cfg
672 if enabled $cfg; then
674 enable_deep_weak $dep_sgs
677 disable ${cfg}_checking
686 for cfg in $allopts; do
687 enabled $cfg || continue
688 eval dep_extralibs="\$${cfg}_extralibs"
689 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
697 map 'eval echo "$v \${$v:-no}"' "$@" |
698 awk "BEGIN { split(\"$files\", files) }
700 c = \"$pfx\" toupper(\$1);
706 if (file ~ /\\.h\$/) {
707 printf(\"#define %s %d\\n\", c, v) >>file;
708 } else if (file ~ /\\.asm\$/) {
709 printf(\"%%define %s %d\\n\", c, v) >>file;
710 } else if (file ~ /\\.mak\$/) {
711 n = -v ? \"\" : \"!\";
712 printf(\"%s%s=yes\\n\", n, c) >>file;
713 } else if (file ~ /\\.texi\$/) {
714 pre = -v ? \"\" : \"@c \";
717 gsub(/_/, \"-\", c2);
718 printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
728 enabled $v && printf "%s\n" ${v%$suf};
735 eval "$var=\"\$$var $*\""
741 eval "$var=\"$* \$$var\""
747 for tok in $(eval echo \$$var); do
748 uniq_list="$(filter_out $tok $uniq_list) $tok"
750 eval "$var=\"${uniq_list}\""
758 append CFLAGS $($cflags_filter "$@")
762 append CXXFLAGS $($cflags_filter "$@")
766 append ASFLAGS $($asflags_filter "$@")
770 append LDFLAGS $($ldflags_filter "$@")
774 append LDEXEFLAGS $($ldflags_filter "$@")
778 append ASMSTRIPFLAGS "$@"
782 prepend extralibs $($ldflags_filter "$@")
786 append host_cppflags "$@"
790 append host_cflags $($host_cflags_filter "$@")
794 append host_ldflags $($host_ldflags_filter "$@")
798 append compat_objs $1
800 map 'add_cppflags -D$v' "$@"
805 "$@" >> $logfile 2>&1
810 stat "$1" >> $logfile 2>&1
814 eval printf '%s\\n' $CC_O
818 eval printf '%s\\n' $CC_E
825 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
832 check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
839 check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
846 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
850 eval printf '%s\\n' $AS_O
857 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
861 log check_inline_asm "$@"
866 check_cc "$@" <<EOF && enable $name
867 void foo(void){ __asm__ volatile($code); }
873 check_inline_asm ${1}_inline "\"$2\""
874 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
882 check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
886 eval printf '%s\\n' $LD_O
893 flags=$(filter_out '-l*|*.so' $@)
894 libs=$(filter '-l*|*.so' $@)
895 check_$type $($cflags_filter $flags) || return
896 flags=$($ldflags_filter $flags)
897 libs=$($ldflags_filter $libs)
898 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
903 test "${hdr%.h}" = "${hdr}" &&
904 echo "#include $hdr" ||
905 echo "#include <$hdr>"
915 for hdr in $headers; do
918 echo "int main(void) { $code; return 0; }"
919 } | check_$check "$@"
923 log check_cppflags "$@"
924 check_cc "$@" <<EOF && append CPPFLAGS "$@"
931 set -- $($cflags_filter "$@")
938 log check_cflags "$@"
939 test_cflags "$@" && add_cflags "$@"
943 log check_cxxflags "$@"
944 set -- $($cflags_filter "$@")
945 check_cxx "$@" <<EOF && append CXXFLAGS "$@"
951 log test_ldflags "$@"
952 check_ld "cc" "$@" <<EOF
953 int main(void){ return 0; }
958 log check_ldflags "$@"
959 test_ldflags "$@" && add_ldflags "$@"
963 log test_stripflags "$@"
964 # call check_cc to get a fresh TMPO
966 int main(void) { return 0; }
968 check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
972 log check_stripflags "$@"
973 test_stripflags "$@" && add_stripflags "$@"
977 log check_header "$@"
981 check_cpp "$@" <<EOF && enable_safe $header
988 log check_header_oc "$@"
994 echo "#include <$header>"
995 echo "int main(void) { return 0; }"
996 } | check_oc && check_stat "$TMPO" && enable_safe $headers
1004 check_ld "cc" "$@" <<EOF && enable $func
1006 int main(void){ $func(); }
1011 log check_mathfunc "$@"
1015 test $narg = 2 && args="f, g" || args="f"
1017 check_ld "cc" "$@" <<EOF && enable $func
1019 float foo(float f, float g) { return $func($args); }
1020 int main(void){ return (int) foo; }
1024 check_func_headers(){
1025 log check_func_headers "$@"
1030 for hdr in $headers; do
1033 for func in $funcs; do
1034 echo "long check_$func(void) { return (long) $func; }"
1036 echo "int main(void) { return 0; }"
1037 } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1040 check_class_headers_cpp(){
1041 log check_class_headers_cpp "$@"
1046 for hdr in $headers; do
1047 echo "#include <$hdr>"
1049 echo "int main(void) { "
1051 for class in $classes; do
1052 echo "$class obj$i;"
1056 } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1059 check_cpp_condition(){
1060 log check_cpp_condition "$@"
1064 check_cpp "$@" <<EOF
1067 #error "unsatisfied condition: $condition"
1077 check_header $header && check_func $func "$@" && add_extralibs "$@"
1085 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1089 log check_lib_cpp "$@"
1093 check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1097 log check_pkg_config "$@"
1103 check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1104 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1105 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1106 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1107 set_safe ${pkg}_cflags $pkg_cflags &&
1108 set_safe ${pkg}_libs $pkg_libs
1112 check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1118 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1119 # are safe but may not be available everywhere. Thus we use
1120 # raise(SIGTERM) instead. The check is run in a subshell so we
1121 # can redirect the "Terminated" message from the shell. SIGBUS
1122 # is not defined by standard C so it is used conditionally.
1124 (check_exec "$@") >> $logfile 2>&1 <<EOF
1126 static void sighandler(int sig){
1132 int (*func_ptr)(void) = foo;
1134 signal(SIGILL, sighandler);
1135 signal(SIGFPE, sighandler);
1136 signal(SIGSEGV, sighandler);
1138 signal(SIGBUS, sighandler);
1150 disable_safe "$type"
1151 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1155 log check_struct "$@"
1160 disable_safe "${struct}_${member}"
1161 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1162 enable_safe "${struct}_${member}"
1166 log check_builtin "$@"
1172 check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1175 check_compile_assert(){
1176 log check_compile_assert "$@"
1182 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1190 check_lib $header $func "$@" || die "ERROR: $name not found"
1198 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1206 check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1211 check_pkg_config "$@" || return 1
1212 add_cflags $(get_safe ${pkg}_cflags)
1213 add_extralibs $(get_safe ${pkg}_libs)
1216 require_pkg_config(){
1217 use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1220 require_libfreetype(){
1221 log require_libfreetype "$@"
1223 check_cmd $pkg_config --exists --print-errors $pkg \
1224 || die "ERROR: $pkg not found"
1225 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1226 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1228 echo "#include <ft2build.h>"
1229 echo "#include FT_FREETYPE_H"
1230 echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1231 echo "int main(void) { return 0; }"
1232 } | check_ld "cc" $pkg_cflags $pkg_libs \
1233 && set_safe ${pkg}_cflags $pkg_cflags \
1234 && set_safe ${pkg}_libs $pkg_libs \
1235 || die "ERROR: $pkg not found"
1236 add_cflags $(get_safe ${pkg}_cflags)
1237 add_extralibs $(get_safe ${pkg}_libs)
1241 eval printf '%s\\n' $HOSTCC_E
1245 eval printf '%s\\n' $HOSTCC_O
1249 log check_host_cc "$@"
1252 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1256 log check_host_cpp "$@"
1259 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1262 check_host_cppflags(){
1263 log check_host_cppflags "$@"
1264 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1269 check_host_cflags(){
1270 log check_host_cflags "$@"
1271 set -- $($host_cflags_filter "$@")
1272 check_host_cc "$@" <<EOF && append host_cflags "$@"
1277 check_host_cpp_condition(){
1278 log check_host_cpp_condition "$@"
1282 check_host_cpp "$@" <<EOF
1285 #error "unsatisfied condition: $condition"
1293 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1297 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1298 mkdir -p "$(dirname $2)"
1302 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1303 # system-dependent things.
1320 avio_reading_example
1321 decoding_encoding_example
1322 demuxing_decoding_example
1324 filter_audio_example
1325 filtering_audio_example
1326 filtering_video_example
1330 resampling_audio_example
1331 scaling_video_example
1332 transcode_aac_example
1336 EXTERNAL_LIBRARY_LIST="
1426 safe_bitstream_reader
1485 $EXTERNAL_LIBRARY_LIST
1493 incompatible_libav_abi
1554 ARCH_EXT_LIST_MIPS="
1561 ARCH_EXT_LIST_X86_SIMD="
1588 $ARCH_EXT_LIST_X86_SIMD
1614 atomic_compare_exchange
1620 sync_val_compare_and_swap
1631 incompatible_libav_abi
1640 cdio_paranoia_paranoia_h
1642 dev_bktr_ioctl_bt848_h
1643 dev_bktr_ioctl_meteor_h
1645 dev_video_bktr_ioctl_bt848_h
1646 dev_video_meteor_ioctl_meteor_h
1654 machine_ioctl_bt848_h
1655 machine_ioctl_meteor_h
1657 openjpeg_1_5_openjpeg_h
1724 GetProcessAffinityMask
1725 GetProcessMemoryInfo
1729 GetSystemTimeAsFileTime
1736 jack_port_get_latency_range
1752 SetConsoleTextAttribute
1764 TOOLCHAIN_FEATURES="
1776 inline_asm_nonlocal_labels
1777 inline_asm_direct_symbol_refs
1788 CONDITION_VARIABLE_Ptr
1791 struct_group_source_req
1792 struct_ip_mreq_source
1795 struct_rusage_ru_maxrss
1796 struct_sctp_event_subscribe
1798 struct_sockaddr_sa_len
1799 struct_sockaddr_storage
1800 struct_stat_st_mtim_tv_nsec
1801 struct_v4l2_frmivalenum_discrete
1806 $(add_suffix _external $ARCH_EXT_LIST)
1807 $(add_suffix _inline $ARCH_EXT_LIST)
1838 # options emitted with CONFIG_ prefix but not available on the command line
1852 frame_thread_encoder
1974 # code dependency declarations
1976 # architecture extensions
1981 armv8_deps="aarch64"
1982 neon_deps_any="aarch64 arm"
1983 intrinsics_neon_deps="neon"
1984 vfp_deps_any="aarch64 arm"
1988 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1991 mips32r2_deps="mips"
1992 mipsdspr1_deps="mips"
1993 mipsdspr2_deps="mips"
2000 x86_64_select="i686"
2001 x86_64_suggest="fast_cmov"
2004 amd3dnowext_deps="amd3dnow"
2020 mmx_external_deps="yasm"
2021 mmx_inline_deps="inline_asm"
2022 mmx_suggest="mmx_external mmx_inline"
2024 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2025 eval dep=\$${ext}_deps
2026 eval ${ext}_external_deps='"${dep}_external"'
2027 eval ${ext}_inline_deps='"${dep}_inline"'
2028 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2031 aligned_stack_if_any="aarch64 ppc x86"
2032 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2033 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2034 fast_unaligned_if_any="aarch64 ppc x86"
2035 simd_align_16_if_any="altivec neon sse"
2037 # system capabilities
2039 symver_if_any="symver_asm_label symver_gnu_asm"
2042 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2043 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2044 atomics_win32_if="MemoryBarrier"
2045 atomics_native_if_any="$ATOMICS_LIST"
2046 w32threads_deps="atomics_native"
2047 threads_if_any="$THREADS_LIST"
2051 error_resilience_select="me_cmp"
2052 faandct_deps="faan fdctdsp"
2053 faanidct_deps="faan idctdsp"
2054 frame_thread_encoder_deps="encoders threads"
2055 intrax8_select="error_resilience"
2058 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2059 mpeg_er_select="error_resilience"
2060 mpegaudio_select="mpegaudiodsp"
2061 mpegaudiodsp_select="dct"
2062 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2063 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2065 # decoders / encoders
2066 aac_decoder_select="mdct sinewin"
2067 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2068 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2069 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2070 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2071 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2072 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2073 aic_decoder_select="golomb idctdsp"
2074 alac_encoder_select="lpc"
2075 als_decoder_select="bswapdsp"
2076 amrnb_decoder_select="lsp"
2077 amrwb_decoder_select="lsp"
2078 amv_decoder_select="sp5x_decoder exif"
2079 amv_encoder_select="aandcttables mpegvideoenc"
2080 ape_decoder_select="bswapdsp llauddsp"
2081 apng_decoder_select="zlib"
2082 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2083 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2084 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2085 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2086 atrac1_decoder_select="mdct sinewin"
2087 atrac3_decoder_select="mdct"
2088 atrac3p_decoder_select="mdct sinewin"
2089 avrn_decoder_select="exif"
2090 bink_decoder_select="blockdsp hpeldsp"
2091 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2092 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2093 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2094 cllc_decoder_select="bswapdsp"
2095 comfortnoise_encoder_select="lpc"
2096 cook_decoder_select="audiodsp mdct sinewin"
2097 cscd_decoder_select="lzo"
2098 cscd_decoder_suggest="zlib"
2099 dca_decoder_select="mdct"
2100 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2101 dnxhd_decoder_select="blockdsp idctdsp"
2102 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2103 dvvideo_decoder_select="dvprofile idctdsp"
2104 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2105 dxa_decoder_select="zlib"
2106 eac3_decoder_select="ac3_decoder"
2107 eac3_encoder_select="ac3_encoder"
2108 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2109 eatgq_decoder_select="aandcttables"
2110 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2111 exr_decoder_select="zlib"
2112 ffv1_decoder_select="golomb rangecoder"
2113 ffv1_encoder_select="rangecoder"
2114 ffvhuff_decoder_select="huffyuv_decoder"
2115 ffvhuff_encoder_select="huffyuv_encoder"
2116 fic_decoder_select="golomb"
2117 flac_decoder_select="golomb"
2118 flac_encoder_select="bswapdsp golomb lpc"
2119 flashsv_decoder_select="zlib"
2120 flashsv_encoder_select="zlib"
2121 flashsv2_encoder_select="zlib"
2122 flashsv2_decoder_select="zlib"
2123 flv_decoder_select="h263_decoder"
2124 flv_encoder_select="h263_encoder"
2125 fourxm_decoder_select="blockdsp bswapdsp"
2126 fraps_decoder_select="bswapdsp huffman"
2127 g2m_decoder_select="blockdsp idctdsp zlib"
2128 g729_decoder_select="audiodsp"
2129 h261_decoder_select="mpeg_er mpegvideo"
2130 h261_encoder_select="aandcttables mpegvideoenc"
2131 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2132 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2133 h263i_decoder_select="h263_decoder"
2134 h263p_encoder_select="h263_encoder"
2135 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2136 h264_decoder_suggest="error_resilience"
2137 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2138 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2139 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2140 iac_decoder_select="imc_decoder"
2141 imc_decoder_select="bswapdsp fft mdct sinewin"
2142 indeo3_decoder_select="hpeldsp"
2143 interplay_video_decoder_select="hpeldsp"
2144 jpegls_decoder_select="golomb mjpeg_decoder"
2145 jpegls_encoder_select="golomb"
2146 jv_decoder_select="blockdsp"
2147 lagarith_decoder_select="huffyuvdsp"
2148 ljpeg_encoder_select="aandcttables idctdsp"
2149 loco_decoder_select="golomb"
2150 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2151 metasound_decoder_select="lsp mdct sinewin"
2152 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2153 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2154 mjpeg_encoder_select="aandcttables mpegvideoenc"
2155 mjpegb_decoder_select="mjpeg_decoder"
2156 mlp_decoder_select="mlp_parser"
2157 motionpixels_decoder_select="bswapdsp"
2158 mp1_decoder_select="mpegaudio"
2159 mp1float_decoder_select="mpegaudio"
2160 mp2_decoder_select="mpegaudio"
2161 mp2float_decoder_select="mpegaudio"
2162 mp3_decoder_select="mpegaudio"
2163 mp3adu_decoder_select="mpegaudio"
2164 mp3adufloat_decoder_select="mpegaudio"
2165 mp3float_decoder_select="mpegaudio"
2166 mp3on4_decoder_select="mpegaudio"
2167 mp3on4float_decoder_select="mpegaudio"
2168 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2169 mpc8_decoder_select="mpegaudiodsp"
2170 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2171 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2172 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2173 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2174 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2175 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2176 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2177 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2178 mpeg4_encoder_select="h263_encoder"
2179 msmpeg4v1_decoder_select="h263_decoder"
2180 msmpeg4v2_decoder_select="h263_decoder"
2181 msmpeg4v2_encoder_select="h263_encoder"
2182 msmpeg4v3_decoder_select="h263_decoder"
2183 msmpeg4v3_encoder_select="h263_encoder"
2184 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2185 mxpeg_decoder_select="mjpeg_decoder"
2186 nellymoser_decoder_select="mdct sinewin"
2187 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2188 nuv_decoder_select="idctdsp lzo"
2189 on2avc_decoder_select="mdct"
2190 opus_decoder_deps="swresample"
2191 png_decoder_select="zlib"
2192 png_encoder_select="huffyuvencdsp zlib"
2193 prores_decoder_select="blockdsp idctdsp"
2194 prores_encoder_select="fdctdsp"
2195 qcelp_decoder_select="lsp"
2196 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2197 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2198 ra_144_decoder_select="audiodsp"
2199 ralf_decoder_select="golomb"
2200 rawvideo_decoder_select="bswapdsp"
2201 rtjpeg_decoder_select="me_cmp"
2202 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2203 rv10_encoder_select="h263_encoder"
2204 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2205 rv20_encoder_select="h263_encoder"
2206 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2207 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2208 shorten_decoder_select="golomb"
2209 sipr_decoder_select="lsp"
2210 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2211 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2212 sonic_decoder_select="golomb rangecoder"
2213 sonic_encoder_select="golomb rangecoder"
2214 sonic_ls_encoder_select="golomb rangecoder"
2215 sp5x_decoder_select="mjpeg_decoder"
2216 svq1_decoder_select="hpeldsp"
2217 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2218 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2219 svq3_decoder_suggest="zlib"
2220 tak_decoder_select="audiodsp"
2221 theora_decoder_select="vp3_decoder"
2222 thp_decoder_select="mjpeg_decoder"
2223 tiff_decoder_suggest="zlib lzma"
2224 tiff_encoder_suggest="zlib"
2225 truehd_decoder_select="mlp_parser"
2226 truemotion2_decoder_select="bswapdsp"
2227 truespeech_decoder_select="bswapdsp"
2228 tscc_decoder_select="zlib"
2229 twinvq_decoder_select="mdct lsp sinewin"
2230 utvideo_decoder_select="bswapdsp"
2231 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2232 vble_decoder_select="huffyuvdsp"
2233 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2234 vc1image_decoder_select="vc1_decoder"
2235 vorbis_decoder_select="mdct"
2236 vorbis_encoder_select="mdct"
2237 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2238 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2239 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2240 vp6a_decoder_select="vp6_decoder"
2241 vp6f_decoder_select="vp6_decoder"
2242 vp7_decoder_select="h264pred videodsp"
2243 vp8_decoder_select="h264pred videodsp"
2244 vp9_decoder_select="videodsp vp9_parser"
2245 webp_decoder_select="vp8_decoder"
2246 wmalossless_decoder_select="llauddsp"
2247 wmapro_decoder_select="mdct sinewin wma_freqs"
2248 wmav1_decoder_select="mdct sinewin wma_freqs"
2249 wmav1_encoder_select="mdct sinewin wma_freqs"
2250 wmav2_decoder_select="mdct sinewin wma_freqs"
2251 wmav2_encoder_select="mdct sinewin wma_freqs"
2252 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2253 wmv1_decoder_select="h263_decoder"
2254 wmv1_encoder_select="h263_encoder"
2255 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2256 wmv2_encoder_select="h263_encoder"
2257 wmv3_decoder_select="vc1_decoder"
2258 wmv3image_decoder_select="wmv3_decoder"
2259 zerocodec_decoder_select="zlib"
2260 zlib_decoder_select="zlib"
2261 zlib_encoder_select="zlib"
2262 zmbv_decoder_select="zlib"
2263 zmbv_encoder_select="zlib"
2265 # hardware accelerators
2266 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2267 dxva2_deps="dxva2api_h"
2268 vaapi_deps="va_va_h"
2269 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2270 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2271 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2272 xvmc_deps="X11_extensions_XvMClib_h"
2274 h263_vaapi_hwaccel_deps="vaapi"
2275 h263_vaapi_hwaccel_select="h263_decoder"
2276 h263_vdpau_hwaccel_deps="vdpau"
2277 h263_vdpau_hwaccel_select="h263_decoder"
2278 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2279 h264_dxva2_hwaccel_deps="dxva2"
2280 h264_dxva2_hwaccel_select="h264_decoder"
2281 h264_vaapi_hwaccel_deps="vaapi"
2282 h264_vaapi_hwaccel_select="h264_decoder"
2283 h264_vda_decoder_deps="vda"
2284 h264_vda_decoder_select="h264_decoder"
2285 h264_vda_hwaccel_deps="vda"
2286 h264_vda_hwaccel_select="h264_decoder"
2287 h264_vda_old_hwaccel_deps="vda"
2288 h264_vda_old_hwaccel_select="h264_decoder"
2289 h264_vdpau_decoder_deps="vdpau"
2290 h264_vdpau_decoder_select="h264_decoder"
2291 h264_vdpau_hwaccel_deps="vdpau"
2292 h264_vdpau_hwaccel_select="h264_decoder"
2293 mpeg_vdpau_decoder_deps="vdpau"
2294 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2295 mpeg_xvmc_hwaccel_deps="xvmc"
2296 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2297 mpeg1_vdpau_decoder_deps="vdpau"
2298 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2299 mpeg1_vdpau_hwaccel_deps="vdpau"
2300 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2301 mpeg1_xvmc_hwaccel_deps="xvmc"
2302 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2303 mpeg2_crystalhd_decoder_select="crystalhd"
2304 mpeg2_dxva2_hwaccel_deps="dxva2"
2305 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2306 mpeg2_vaapi_hwaccel_deps="vaapi"
2307 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2308 mpeg2_vdpau_hwaccel_deps="vdpau"
2309 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2310 mpeg2_xvmc_hwaccel_deps="xvmc"
2311 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2312 mpeg4_crystalhd_decoder_select="crystalhd"
2313 mpeg4_vaapi_hwaccel_deps="vaapi"
2314 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2315 mpeg4_vdpau_decoder_deps="vdpau"
2316 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2317 mpeg4_vdpau_hwaccel_deps="vdpau"
2318 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2319 msmpeg4_crystalhd_decoder_select="crystalhd"
2320 vc1_crystalhd_decoder_select="crystalhd"
2321 vc1_dxva2_hwaccel_deps="dxva2"
2322 vc1_dxva2_hwaccel_select="vc1_decoder"
2323 vc1_vaapi_hwaccel_deps="vaapi"
2324 vc1_vaapi_hwaccel_select="vc1_decoder"
2325 vc1_vdpau_decoder_deps="vdpau"
2326 vc1_vdpau_decoder_select="vc1_decoder"
2327 vc1_vdpau_hwaccel_deps="vdpau"
2328 vc1_vdpau_hwaccel_select="vc1_decoder"
2329 wmv3_crystalhd_decoder_select="crystalhd"
2330 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2331 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2332 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2333 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2336 h264_parser_select="h264_decoder"
2337 hevc_parser_select="hevc_decoder"
2338 mpegvideo_parser_select="mpegvideo"
2339 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2340 vc1_parser_select="mpegvideo startcode vc1_decoder"
2342 # external libraries
2343 libaacplus_encoder_deps="libaacplus"
2344 libcelt_decoder_deps="libcelt"
2345 libfaac_encoder_deps="libfaac"
2346 libfaac_encoder_select="audio_frame_queue"
2347 libfdk_aac_decoder_deps="libfdk_aac"
2348 libfdk_aac_encoder_deps="libfdk_aac"
2349 libfdk_aac_encoder_select="audio_frame_queue"
2350 libgme_demuxer_deps="libgme"
2351 libgsm_decoder_deps="libgsm"
2352 libgsm_encoder_deps="libgsm"
2353 libgsm_ms_decoder_deps="libgsm"
2354 libgsm_ms_encoder_deps="libgsm"
2355 libilbc_decoder_deps="libilbc"
2356 libilbc_encoder_deps="libilbc"
2357 libmodplug_demuxer_deps="libmodplug"
2358 libmp3lame_encoder_deps="libmp3lame"
2359 libmp3lame_encoder_select="audio_frame_queue"
2360 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2361 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2362 libopencore_amrnb_encoder_select="audio_frame_queue"
2363 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2364 libopenjpeg_decoder_deps="libopenjpeg"
2365 libopenjpeg_encoder_deps="libopenjpeg"
2366 libopus_decoder_deps="libopus"
2367 libopus_encoder_deps="libopus"
2368 libopus_encoder_select="audio_frame_queue"
2369 libquvi_demuxer_deps="libquvi"
2370 libschroedinger_decoder_deps="libschroedinger"
2371 libschroedinger_encoder_deps="libschroedinger"
2372 libshine_encoder_deps="libshine"
2373 libshine_encoder_select="audio_frame_queue"
2374 libspeex_decoder_deps="libspeex"
2375 libspeex_encoder_deps="libspeex"
2376 libspeex_encoder_select="audio_frame_queue"
2377 libstagefright_h264_decoder_deps="libstagefright_h264"
2378 libtheora_encoder_deps="libtheora"
2379 libtwolame_encoder_deps="libtwolame"
2380 libvo_aacenc_encoder_deps="libvo_aacenc"
2381 libvo_aacenc_encoder_select="audio_frame_queue"
2382 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2383 libvorbis_decoder_deps="libvorbis"
2384 libvorbis_encoder_deps="libvorbis"
2385 libvorbis_encoder_select="audio_frame_queue"
2386 libvpx_vp8_decoder_deps="libvpx"
2387 libvpx_vp8_encoder_deps="libvpx"
2388 libvpx_vp9_decoder_deps="libvpx"
2389 libvpx_vp9_encoder_deps="libvpx"
2390 libwavpack_encoder_deps="libwavpack"
2391 libwebp_encoder_deps="libwebp"
2392 libx264_encoder_deps="libx264"
2393 libx264rgb_encoder_deps="libx264"
2394 libx264rgb_encoder_select="libx264_encoder"
2395 libx265_encoder_deps="libx265"
2396 libxavs_encoder_deps="libxavs"
2397 libxvid_encoder_deps="libxvid"
2398 libutvideo_decoder_deps="libutvideo"
2399 libutvideo_encoder_deps="libutvideo"
2400 libzvbi_teletext_decoder_deps="libzvbi"
2403 ac3_demuxer_select="ac3_parser"
2404 asf_demuxer_select="riffdec"
2405 asf_muxer_select="riffenc"
2406 asf_stream_muxer_select="asf_muxer"
2407 avi_demuxer_select="riffdec exif"
2408 avi_muxer_select="riffenc"
2409 avisynth_demuxer_deps="avisynth"
2410 avisynth_demuxer_select="riffdec"
2411 caf_demuxer_select="riffdec"
2412 dash_muxer_select="mp4_muxer"
2413 dirac_demuxer_select="dirac_parser"
2414 dts_demuxer_select="dca_parser"
2415 dtshd_demuxer_select="dca_parser"
2416 dv_demuxer_select="dvprofile"
2417 dv_muxer_select="dvprofile"
2418 dxa_demuxer_select="riffdec"
2419 eac3_demuxer_select="ac3_parser"
2420 f4v_muxer_select="mov_muxer"
2421 flac_demuxer_select="flac_parser"
2422 hds_muxer_select="flv_muxer"
2423 hls_muxer_select="mpegts_muxer"
2424 image2_alias_pix_demuxer_select="image2_demuxer"
2425 image2_brender_pix_demuxer_select="image2_demuxer"
2426 ipod_muxer_select="mov_muxer"
2427 ismv_muxer_select="mov_muxer"
2428 libnut_demuxer_deps="libnut"
2429 libnut_muxer_deps="libnut"
2430 matroska_audio_muxer_select="matroska_muxer"
2431 matroska_demuxer_select="riffdec"
2432 matroska_demuxer_suggest="bzlib lzo zlib"
2433 matroska_muxer_select="riffenc"
2434 mmf_muxer_select="riffenc"
2435 mov_demuxer_select="riffdec"
2436 mov_demuxer_suggest="zlib"
2437 mov_muxer_select="riffenc rtpenc_chain ac3_parser"
2438 mp3_demuxer_select="mpegaudio_parser"
2439 mp4_muxer_select="mov_muxer"
2440 mpegts_muxer_select="adts_muxer latm_muxer"
2441 mpegtsraw_demuxer_select="mpegts_demuxer"
2442 mxf_d10_muxer_select="mxf_muxer"
2443 nut_muxer_select="riffenc"
2444 nuv_demuxer_select="riffdec"
2445 oga_muxer_select="ogg_muxer"
2446 ogg_demuxer_select="golomb"
2447 opus_muxer_select="ogg_muxer"
2448 psp_muxer_select="mov_muxer"
2449 rtp_demuxer_select="sdp_demuxer"
2450 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2451 rtsp_demuxer_select="http_protocol rtpdec"
2452 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2453 sap_demuxer_select="sdp_demuxer"
2454 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2455 sdp_demuxer_select="rtpdec"
2456 smoothstreaming_muxer_select="ismv_muxer"
2457 spdif_muxer_select="aac_parser"
2458 spx_muxer_select="ogg_muxer"
2459 tak_demuxer_select="tak_parser"
2460 tg2_muxer_select="mov_muxer"
2461 tgp_muxer_select="mov_muxer"
2462 vobsub_demuxer_select="mpegps_demuxer"
2463 w64_demuxer_select="wav_demuxer"
2464 w64_muxer_select="wav_muxer"
2465 wav_demuxer_select="riffdec"
2466 wav_muxer_select="riffenc"
2467 webm_muxer_select="riffenc"
2468 wtv_demuxer_select="riffdec"
2469 wtv_muxer_select="riffenc"
2470 xmv_demuxer_select="riffdec"
2471 xwma_demuxer_select="riffdec"
2474 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2475 alsa_outdev_deps="alsa_asoundlib_h"
2476 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia -framework CoreGraphics"
2477 avfoundation_indev_select="avfoundation"
2478 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2479 caca_outdev_deps="libcaca"
2480 decklink_outdev_deps="decklink pthreads"
2481 decklink_outdev_extralibs="-lstdc++"
2482 decklink_indev_deps="decklink pthreads"
2483 decklink_indev_extralibs="-lstdc++"
2484 dshow_indev_deps="IBaseFilter"
2485 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2486 dv1394_indev_deps="dv1394"
2487 dv1394_indev_select="dv_demuxer"
2488 fbdev_indev_deps="linux_fb_h"
2489 fbdev_outdev_deps="linux_fb_h"
2490 gdigrab_indev_deps="CreateDIBSection"
2491 gdigrab_indev_extralibs="-lgdi32"
2492 gdigrab_indev_select="bmp_decoder"
2493 iec61883_indev_deps="libiec61883"
2494 jack_indev_deps="jack_jack_h sem_timedwait"
2495 lavfi_indev_deps="avfilter"
2496 libcdio_indev_deps="libcdio"
2497 libdc1394_indev_deps="libdc1394"
2498 libv4l2_indev_deps="libv4l2"
2499 openal_indev_deps="openal"
2500 opengl_outdev_deps="opengl"
2501 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2502 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2503 pulse_indev_deps="libpulse"
2504 pulse_outdev_deps="libpulse"
2505 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2506 qtkit_indev_select="qtkit"
2507 sdl_outdev_deps="sdl"
2508 sndio_indev_deps="sndio_h"
2509 sndio_outdev_deps="sndio_h"
2510 v4l_indev_deps="linux_videodev_h"
2511 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2512 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2513 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2514 vfwcap_indev_extralibs="-lavicap32"
2515 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2516 xv_outdev_extralibs="-lXv -lX11 -lXext"
2517 x11grab_indev_deps="x11grab"
2518 x11grab_xcb_indev_deps="libxcb"
2521 bluray_protocol_deps="libbluray"
2522 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2523 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2524 ffrtmpcrypt_protocol_select="tcp_protocol"
2525 ffrtmphttp_protocol_deps="!librtmp_protocol"
2526 ffrtmphttp_protocol_select="http_protocol"
2527 ftp_protocol_select="tcp_protocol"
2528 gopher_protocol_select="network"
2529 http_protocol_select="tcp_protocol"
2530 httpproxy_protocol_select="tcp_protocol"
2531 https_protocol_select="tls_protocol"
2532 icecast_protocol_select="http_protocol"
2533 librtmp_protocol_deps="librtmp"
2534 librtmpe_protocol_deps="librtmp"
2535 librtmps_protocol_deps="librtmp"
2536 librtmpt_protocol_deps="librtmp"
2537 librtmpte_protocol_deps="librtmp"
2538 libsmbclient_protocol_deps="libsmbclient gplv3"
2539 libssh_protocol_deps="libssh"
2540 mmsh_protocol_select="http_protocol"
2541 mmst_protocol_select="network"
2542 rtmp_protocol_deps="!librtmp_protocol"
2543 rtmp_protocol_select="tcp_protocol"
2544 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2545 rtmps_protocol_deps="!librtmp_protocol"
2546 rtmps_protocol_select="tls_protocol"
2547 rtmpt_protocol_select="ffrtmphttp_protocol"
2548 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2549 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2550 rtp_protocol_select="udp_protocol"
2551 sctp_protocol_deps="struct_sctp_event_subscribe"
2552 sctp_protocol_select="network"
2553 srtp_protocol_select="rtp_protocol"
2554 tcp_protocol_select="network"
2555 tls_protocol_deps_any="openssl gnutls"
2556 tls_protocol_select="tcp_protocol"
2557 udp_protocol_select="network"
2558 udplite_protocol_select="network"
2559 unix_protocol_deps="sys_un_h"
2560 unix_protocol_select="network"
2563 amovie_filter_deps="avcodec avformat"
2564 aresample_filter_deps="swresample"
2565 ass_filter_deps="libass"
2566 asyncts_filter_deps="avresample"
2567 atempo_filter_deps="avcodec"
2568 atempo_filter_select="rdft"
2569 azmq_filter_deps="libzmq"
2570 blackframe_filter_deps="gpl"
2571 boxblur_filter_deps="gpl"
2572 bs2b_filter_deps="libbs2b"
2573 colormatrix_filter_deps="gpl"
2574 cropdetect_filter_deps="gpl"
2575 delogo_filter_deps="gpl"
2576 deshake_filter_select="pixelutils"
2577 drawtext_filter_deps="libfreetype"
2578 ebur128_filter_deps="gpl"
2579 flite_filter_deps="libflite"
2580 frei0r_filter_deps="frei0r dlopen"
2581 frei0r_src_filter_deps="frei0r dlopen"
2582 geq_filter_deps="gpl"
2583 histeq_filter_deps="gpl"
2584 hqdn3d_filter_deps="gpl"
2585 interlace_filter_deps="gpl"
2586 kerndeint_filter_deps="gpl"
2587 ladspa_filter_deps="ladspa dlopen"
2588 mcdeint_filter_deps="avcodec gpl"
2589 movie_filter_deps="avcodec avformat"
2590 mp_filter_deps="gpl avcodec swscale"
2591 mpdecimate_filter_deps="gpl"
2592 mpdecimate_filter_select="pixelutils"
2593 mptestsrc_filter_deps="gpl"
2594 negate_filter_deps="lut_filter"
2595 perspective_filter_deps="gpl"
2596 ocv_filter_deps="libopencv"
2597 owdenoise_filter_deps="gpl"
2598 pan_filter_deps="swresample"
2599 phase_filter_deps="gpl"
2600 pp_filter_deps="gpl postproc"
2601 pullup_filter_deps="gpl"
2602 removelogo_filter_deps="avcodec avformat swscale"
2603 resample_filter_deps="avresample"
2604 sab_filter_deps="gpl swscale"
2605 scale_filter_deps="swscale"
2606 select_filter_select="pixelutils"
2607 smartblur_filter_deps="gpl swscale"
2608 showspectrum_filter_deps="avcodec"
2609 showspectrum_filter_select="rdft"
2610 spp_filter_deps="gpl avcodec"
2611 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2612 stereo3d_filter_deps="gpl"
2613 subtitles_filter_deps="avformat avcodec libass"
2614 super2xsai_filter_deps="gpl"
2615 tinterlace_filter_deps="gpl"
2616 vidstabdetect_filter_deps="libvidstab"
2617 vidstabtransform_filter_deps="libvidstab"
2618 pixfmts_super2xsai_test_deps="super2xsai_filter"
2619 tinterlace_merge_test_deps="tinterlace_filter"
2620 tinterlace_pad_test_deps="tinterlace_filter"
2621 zmq_filter_deps="libzmq"
2622 zoompan_filter_deps="swscale"
2625 avio_reading="avformat avcodec avutil"
2626 avcodec_example_deps="avcodec avutil"
2627 decoding_encoding_example_deps="avcodec avformat avutil"
2628 demuxing_decoding_example_deps="avcodec avformat avutil"
2629 extract_mvs_example_deps="avcodec avformat avutil"
2630 filter_audio_example_deps="avfilter avutil"
2631 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2632 filtering_video_example_deps="avfilter avcodec avformat avutil"
2633 metadata_example_deps="avformat avutil"
2634 muxing_example_deps="avcodec avformat avutil swscale"
2635 remuxing_example_deps="avcodec avformat avutil"
2636 resampling_audio_example_deps="avutil swresample"
2637 scaling_video_example_deps="avutil swscale"
2638 transcode_aac_example_deps="avcodec avformat swresample"
2639 transcoding_example_deps="avfilter avcodec avformat avutil"
2641 # libraries, in linking order
2642 avcodec_deps="avutil"
2643 avdevice_deps="avformat avcodec avutil"
2644 avfilter_deps="avutil"
2645 avformat_deps="avcodec avutil"
2646 avresample_deps="avutil"
2647 postproc_deps="avutil gpl"
2648 swresample_deps="avutil"
2649 swscale_deps="avutil"
2652 ffmpeg_deps="avcodec avfilter avformat swresample"
2653 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2655 setpts_filter trim_filter"
2656 ffplay_deps="avcodec avformat swscale swresample sdl"
2657 ffplay_libs='$sdl_libs'
2658 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2659 ffprobe_deps="avcodec avformat"
2660 ffserver_deps="avformat fork sarestart"
2661 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2664 podpages_deps="perl"
2665 manpages_deps="perl pod2man"
2666 htmlpages_deps="perl"
2667 htmlpages_deps_any="makeinfo_html texi2html"
2668 txtpages_deps="perl makeinfo"
2669 doc_deps_any="manpages htmlpages podpages txtpages"
2671 # default parameters
2673 logfile="config.log"
2675 # installation paths
2676 prefix_default="/usr/local"
2677 bindir_default='${prefix}/bin'
2678 datadir_default='${prefix}/share/ffmpeg'
2679 docdir_default='${prefix}/share/doc/ffmpeg'
2680 incdir_default='${prefix}/include'
2681 libdir_default='${prefix}/lib'
2682 mandir_default='${prefix}/share/man'
2683 shlibdir_default="$libdir_default"
2689 host_cc_default="gcc"
2691 doxygen_default="doxygen"
2696 pkg_config_default=pkg-config
2697 ranlib_default="ranlib"
2698 strip_default="strip"
2699 yasmexe_default="yasm"
2700 windres_default="windres"
2703 target_os_default=$(tolower $(uname -s))
2704 host_os=$target_os_default
2707 if test "$target_os_default" = aix; then
2708 arch_default=$(uname -p)
2709 strip_default="strip -X32_64"
2711 arch_default=$(uname -m)
2716 # configurable options
2717 enable $PROGRAM_LIST
2718 enable $DOCUMENT_LIST
2719 enable $EXAMPLE_LIST
2720 enable $(filter_out avresample $LIBRARY_LIST)
2726 enable faan faandct faanidct
2727 enable optimizations
2728 enable runtime_cpudetect
2729 enable safe_bitstream_reader
2731 enable swscale_alpha
2733 sws_max_filter_size_default=256
2734 set_default sws_max_filter_size
2736 # Enable hwaccels by default.
2737 enable dxva2 vaapi vda vdpau xvmc
2741 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2744 FULLNAME='$(NAME)$(BUILDSUF)'
2745 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2748 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2749 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2750 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2751 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2752 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2753 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2775 host_cflags_filter=echo
2776 host_ldflags_filter=echo
2778 target_path='$(CURDIR)'
2780 # since the object filename is not given with the -MM flag, the compiler
2781 # is only able to print the basename, and we must add the path ourselves
2782 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2786 if test -f configure; then
2789 source_path=$(cd $(dirname "$0"); pwd)
2790 echo "$source_path" | grep -q '[[:blank:]]' &&
2791 die "Out of tree builds are impossible with whitespace in source path."
2792 test -e "$source_path/config.h" &&
2793 die "Out of tree builds are impossible with config.h in source dir."
2800 FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2806 file=$source_path/$3
2807 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2810 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2811 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2812 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2813 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2814 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2815 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2816 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2817 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2818 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2819 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2820 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2836 for n in $COMPONENT_LIST; do
2837 v=$(toupper ${n%s})_LIST
2839 eval ${n}_if_any="\$$v"
2842 enable $ARCH_EXT_LIST
2845 echo "Unknown option \"$1\"."
2846 echo "See $0 --help for available options."
2851 cat | tr ' ' '\n' | sort | pr -r -3 -t
2857 echo $* | sed s/$suffix//g | print_3_columns
2869 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2870 echo "prob ${prob:-0.5}"
2878 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2879 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2888 --extra-ldexeflags=*)
2889 add_ldexeflags $optval
2892 add_extralibs $optval
2895 disable $INDEV_LIST $OUTDEV_LIST
2898 debuglevel="$optval"
2901 disable $PROGRAM_LIST
2903 --disable-everything)
2904 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2907 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2908 disable $LIBRARY_LIST $PROGRAM_LIST doc
2910 --enable-random|--disable-random)
2911 action=${opt%%-random}
2912 do_random ${action#--} $COMPONENT_LIST
2914 --enable-random=*|--disable-random=*)
2915 action=${opt%%-random=*}
2916 do_random ${action#--} $optval
2918 --enable-*=*|--disable-*=*)
2919 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2920 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2921 eval list=\$$(toupper $thing)_LIST
2922 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2923 list=$(filter "$name" $list)
2924 [ "$list" = "" ] && warn "Option $opt did not match anything"
2927 --enable-?*|--disable-?*)
2928 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2929 if is_in $option $COMPONENT_LIST; then
2930 test $action = disable && action=unset
2931 eval $action \$$(toupper ${option%s})_LIST
2932 elif is_in $option $CMDLINE_SELECT; then
2939 NAME="${opt#--list-}"
2940 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2942 eval show_list $NAME \$$(toupper $NAME)_LIST
2944 --help|-h) show_help
2946 --fatal-warnings) enable fatal_warnings
2949 optname="${opt%%=*}"
2950 optname="${optname#--}"
2951 optname=$(echo "$optname" | sed 's/-/_/g')
2952 if is_in $optname $CMDLINE_SET; then
2953 eval $optname='$optval'
2954 elif is_in $optname $CMDLINE_APPEND; then
2955 append $optname "$optval"
2963 disabled logging && logfile=/dev/null
2965 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2968 test -n "$cross_prefix" && enable cross_compile
2970 if enabled cross_compile; then
2971 test -n "$arch" && test -n "$target_os" ||
2972 die "Must specify target arch and OS when cross-compiling"
2975 ar_default="${cross_prefix}${ar_default}"
2976 cc_default="${cross_prefix}${cc_default}"
2977 cxx_default="${cross_prefix}${cxx_default}"
2978 nm_default="${cross_prefix}${nm_default}"
2979 pkg_config_default="${cross_prefix}${pkg_config_default}"
2980 ranlib_default="${cross_prefix}${ranlib_default}"
2981 strip_default="${cross_prefix}${strip_default}"
2982 windres_default="${cross_prefix}${windres_default}"
2984 sysinclude_default="${sysroot}/usr/include"
2986 test -n "$valgrind" && toolchain="valgrind-memcheck"
2988 case "$toolchain" in
2991 add_cflags -fsanitize=address
2992 add_ldflags -fsanitize=address
2996 add_cflags -fsanitize=thread -pie
2997 add_ldflags -fsanitize=thread -pie
3001 add_cflags -fsanitize=undefined
3002 add_ldflags -fsanitize=undefined
3006 add_cflags -fsanitize=address
3007 add_ldflags -fsanitize=address
3011 add_cflags -fsanitize=thread -pie -fPIC
3012 add_ldflags -fsanitize=thread -pie -fPIC
3016 add_cflags -fsanitize=undefined
3017 add_ldflags -fsanitize=undefined
3020 target_exec_default=${valgrind:-"valgrind"}
3021 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"
3024 target_exec_default=${valgrind:-"valgrind"}
3025 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3028 # Check whether the current MSVC version needs the C99 converter.
3029 # From MSVC 2013 (compiler major version 18) onwards, it does actually
3030 # support enough of C99 to build ffmpeg. Default to the new
3031 # behaviour if the regexp was unable to match anything, since this
3032 # successfully parses the version number of existing supported
3033 # versions that require the converter (MSVC 2010 and 2012).
3034 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3035 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3038 cc_default="c99wrap cl"
3041 nm_default="dumpbin -symbols"
3043 target_os_default="win32"
3044 # Use a relative path for TMPDIR. This makes sure all the
3045 # ffconf temp files are written with a relative path, avoiding
3046 # issues with msys/win32 path conversion for MSVC parameters
3047 # such as -Fo<file> or -out:<file>.
3053 nm_default="dumpbin -symbols"
3055 target_os_default="win32"
3059 add_cflags -fprofile-arcs -ftest-coverage
3060 add_ldflags -fprofile-arcs -ftest-coverage
3063 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3064 add_cflags -fno-strict-overflow -fstack-protector-all
3065 add_ldflags -Wl,-z,relro -Wl,-z,now
3068 die "Unknown toolchain $toolchain"
3072 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3073 target_exec target_os yasmexe
3074 enabled cross_compile || host_cc_default=$cc
3077 pkg_config_fail_message=""
3078 if ! $pkg_config --version >/dev/null 2>&1; then
3079 warn "$pkg_config not found, library detection may fail."
3081 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3082 pkg_config_fail_message="
3083 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3086 if test $doxygen != $doxygen_default && \
3087 ! $doxygen --version >/dev/null 2>&1; then
3088 warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3093 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3097 EXESUF=$(exesuf $target_os)
3098 HOSTEXESUF=$(exesuf $host_os)
3100 # set temporary file name
3101 : ${TMPDIR:=$TEMPDIR}
3105 if [ -n "$tempprefix" ] ; then
3107 echo $tempprefix.${HOSTNAME}.${UID}
3109 elif ! check_cmd mktemp -u XXXXXX; then
3110 # simple replacement for missing mktemp
3111 # NOT SAFE FOR GENERAL USE
3113 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3118 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3119 (set -C; exec > $tmp) 2>/dev/null ||
3120 die "Unable to create temporary file in $TMPDIR."
3121 append TMPFILES $tmp
3125 trap 'rm -f -- $TMPFILES' EXIT
3130 tmpfile TMPE $EXESUF
3142 # make sure we can execute files in $TMPDIR
3143 cat > $TMPSH 2>> $logfile <<EOF
3146 chmod +x $TMPSH >> $logfile 2>&1
3147 if ! $TMPSH >> $logfile 2>&1; then
3149 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3150 variable to another directory and make sure that it is not mounted noexec.
3152 die "Sanity test failed."
3158 # Filter out MSVC cl.exe options from cflags that shouldn't
3159 # be passed to gas-preprocessor
3169 -std=c99) echo -c99 ;;
3170 -mcpu=*) echo -arch ${flag#*=} ;;
3171 -mieee) echo -ieee ;;
3172 -O*|-fast) echo $flag ;;
3173 -fno-math-errno) echo -assume nomath_errno ;;
3175 -Wall) echo -msg_enable level2 ;;
3176 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3177 -Wl,*) echo $flag ;;
3187 -Wno-switch) echo -Wno-switch-enum ;;
3188 -Wno-format-zero-length) ;;
3189 -Wdisabled-optimization) ;;
3190 -Wno-pointer-sign) echo -Wno-other ;;
3196 msvc_common_flags(){
3199 # In addition to specifying certain flags under the compiler
3200 # specific filters, they must be specified here as well or else the
3201 # generic catch all at the bottom will print the original flag.
3205 -fomit-frame-pointer) ;;
3209 -fno-signed-zeros) ;;
3213 -lz) echo zlib.lib ;;
3214 -lavifil32) echo vfw32.lib ;;
3215 -lavicap32) echo vfw32.lib user32.lib ;;
3216 -l*) echo ${flag#-l}.lib ;;
3223 msvc_common_flags "$@"
3226 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3227 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3228 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3236 msvc_common_flags "$@"
3239 # Despite what Intel's documentation says -Wall, which is supported
3240 # on Windows, does enable remarks so disable them here.
3241 -Wall) echo $flag -Qdiag-disable:remark ;;
3242 -std=c99) echo -Qstd=c99 ;;
3260 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3261 -fomit-frame-pointer) echo -Mnoframe ;;
3272 case "${flag#*=}" in
3273 native) echo -xtarget=native ;;
3274 v9|niagara) echo -xarch=sparc ;;
3275 ultrasparc) echo -xarch=sparcvis ;;
3276 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3277 i586|pentium) echo -xchip=pentium ;;
3278 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3279 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3280 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3281 pentium4*) echo -xtarget=pentium4 ;;
3282 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3283 *-sse3) echo -xarch=sse3 ;;
3284 core2) echo -xarch=ssse3 -xchip=core2 ;;
3285 bonnell) echo -xarch=ssse3 ;;
3286 corei7|nehalem) echo -xtarget=nehalem ;;
3287 westmere) echo -xtarget=westmere ;;
3288 silvermont) echo -xarch=sse4_2 ;;
3289 corei7-avx|sandybridge) echo -xtarget=sandybridge ;;
3290 core-avx*|ivybridge|haswell|broadwell)
3292 amdfam10|barcelona) echo -xtarget=barcelona ;;
3293 btver1) echo -xarch=amdsse4a ;;
3294 btver2|bdver*) echo -xarch=avx ;;
3295 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3296 k8|opteron|athlon64|athlon-fx)
3297 echo -xarch=sse2a ;;
3298 athlon*) echo -xarch=pentium_proa ;;
3301 -std=c99) echo -xc99 ;;
3302 -fomit-frame-pointer) echo -xregs=frameptr ;;
3303 -fPIC) echo -KPIC -xcode=pic32 ;;
3304 -W*,*) echo $flag ;;
3305 -f*-*|-W*|-mimpure-text) ;;
3316 case "${flag#*=}" in
3317 armv7-a|cortex-a*) echo -mv=7a8 ;;
3318 armv7-r|cortex-r*) echo -mv=7r4 ;;
3319 armv7-m|cortex-m*) echo -mv=7m3 ;;
3320 armv6*|arm11*) echo -mv=6 ;;
3321 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3323 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3326 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3327 -mfpu=vfp) echo --float_support=vfpv2 ;;
3328 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3329 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3330 -msoft-float) echo --float_support=vfplib ;;
3331 -O[0-3]|-mf=*) echo $flag ;;
3333 -pds=*) echo $flag ;;
3334 -D*|-I*) echo $flag ;;
3335 --gcc|--abi=*) echo $flag ;;
3345 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3346 unset _ld_o _ldflags _ld_lib _ld_path
3347 unset _depflags _DEPCMD _DEPFLAGS
3350 if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3351 true # no-op to avoid reading stdin in following checks
3352 elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3354 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3355 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3356 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3359 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3361 gcc_version=$($_cc --version | head -n1)
3362 gcc_basever=$($_cc -dumpversion)
3363 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3364 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3365 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3366 if ! $_cc -dumpversion | grep -q '^2\.'; then
3367 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3371 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3373 _ident=$($_cc --version | head -n1)
3378 _flags_filter=icc_flags
3379 elif $_cc -v 2>&1 | grep -q xlc; then
3381 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3383 _cflags_size='-O5 -qcompact'
3384 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3386 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3388 _cflags_speed='-fast'
3390 _flags_filter=ccc_flags
3391 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3392 test -d "$sysroot" || die "No valid sysroot specified."
3394 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3395 armcc_conf="$PWD/armcc.conf"
3396 $_cc --arm_linux_configure \
3397 --arm_linux_config_file="$armcc_conf" \
3398 --configure_sysroot="$sysroot" \
3399 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3400 die "Error creating armcc configuration file."
3401 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3402 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3403 as_default="${cross_prefix}gcc"
3407 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3409 _ident=$($_cc -version | head -n1 | tr -s ' ')
3410 _flags='--gcc --abi=eabi -me'
3413 _depflags='-ppa -ppd=$(@:.o=.d)'
3414 _cflags_speed='-O3 -mf=5'
3415 _cflags_size='-O3 -mf=2'
3416 _flags_filter=tms470_flags
3417 elif $_cc -v 2>&1 | grep -q clang; then
3419 _ident=$($_cc --version | head -n1)
3420 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3423 elif $_cc -V 2>&1 | grep -q Sun; then
3425 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3426 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3427 _DEPFLAGS='-xM1 -xc99'
3430 _cflags_size='-O5 -xspace'
3431 _flags_filter=suncc_flags
3432 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3434 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3435 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3438 _flags_filter='filter_out -Wdisabled-optimization'
3439 elif $_cc -v 2>&1 | grep -q Open64; then
3441 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3442 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3445 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3446 elif $_cc -V 2>&1 | grep -q Portland; then
3448 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3449 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3450 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3451 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3453 _flags_filter=pgi_flags
3454 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3456 _ident=$($_cc | head -n1)
3457 # 4509: "This form of conditional instruction is deprecated"
3458 _flags="-nologo -ignore 4509"
3459 _flags_filter=armasm_flags
3460 elif $_cc 2>&1 | grep -q Intel; then
3462 _ident=$($cc 2>&1 | head -n1)
3463 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3464 # Not only is O3 broken on 13.x+ but it is slower on all previous
3465 # versions (tested) as well.
3467 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3468 if $_cc 2>&1 | grep -q Linker; then
3475 _flags_filter=icl_flags
3477 _ld_path='-libpath:'
3478 # -Qdiag-error to make icl error when seeing certain unknown arguments
3479 _flags='-nologo -Qdiag-error:4044,10157'
3480 # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3481 # with MSVC which enables it by default.
3482 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3483 if [ $pfx = hostcc ]; then
3484 append _cflags -Dsnprintf=_snprintf
3487 elif $_cc 2>&1 | grep -q Microsoft; then
3489 _ident=$($cc 2>&1 | head -n1)
3490 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3491 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3494 if $_cc 2>&1 | grep -q Linker; then
3501 _flags_filter=msvc_flags
3503 _ld_path='-libpath:'
3505 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3506 if [ $pfx = hostcc ]; then
3507 append _cflags -Dsnprintf=_snprintf
3510 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3512 _ident=$($_cc --version | head -n1)
3516 _flags_filter=cparser_flags
3519 eval ${pfx}_type=\$_type
3520 eval ${pfx}_ident=\$_ident
3524 eval ${1}_C=\${_cc_c-\${${1}_C}}
3525 eval ${1}_E=\${_cc_e-\${${1}_E}}
3526 eval ${1}_O=\${_cc_o-\${${1}_O}}
3528 if [ -n "$_depflags" ]; then
3529 eval ${1}_DEPFLAGS=\$_depflags
3531 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3532 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3533 eval DEP${1}FLAGS=\$_flags
3538 cflags_filter=$_flags_filter
3539 cflags_speed=$_cflags_speed
3540 cflags_size=$_cflags_size
3541 cflags_noopt=$_cflags_noopt
3542 add_cflags $_flags $_cflags
3543 cc_ldflags=$_ldflags
3546 probe_cc hostcc "$host_cc"
3547 host_cflags_filter=$_flags_filter
3548 add_host_cflags $_flags $_cflags
3551 test -n "$cc_type" && enable $cc_type ||
3552 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3554 : ${as_default:=$cc}
3555 : ${dep_cc_default:=$cc}
3556 : ${ld_default:=$cc}
3557 : ${host_ld_default:=$host_cc}
3558 set_default ar as dep_cc ld host_ld windres
3561 asflags_filter=$_flags_filter
3562 add_asflags $_flags $_cflags
3566 ldflags_filter=$_flags_filter
3567 add_ldflags $_flags $_ldflags
3568 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3570 LD_LIB=${_ld_lib-$LD_LIB}
3571 LD_PATH=${_ld_path-$LD_PATH}
3573 probe_cc hostld "$host_ld"
3574 host_ldflags_filter=$_flags_filter
3575 add_host_ldflags $_flags $_ldflags
3576 HOSTLD_O=${_ld_o-$HOSTLD_O}
3578 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3579 probe_cc depcc "$dep_cc"
3580 CCDEP=${_DEPCMD:-$DEPCMD}
3581 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3585 if $ar 2>&1 | grep -q Microsoft; then
3588 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3591 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3592 arflags='-Xany -r -c'
3599 add_cflags $extra_cflags
3600 add_cxxflags $extra_cxxflags
3601 add_asflags $extra_cflags
3603 if test -n "$sysroot"; then
3606 add_cppflags --sysroot="$sysroot"
3607 add_ldflags --sysroot="$sysroot"
3608 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3609 add_cppflags -isysroot "$sysroot"
3610 add_ldflags -isysroot "$sysroot"
3613 add_cppflags -I"$sysinclude"
3614 add_ldflags --sysroot="$sysroot"
3619 if test "$cpu" = host; then
3620 enabled cross_compile &&
3621 die "--cpu=host makes no sense when cross-compiling."
3626 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3628 s/.*$1=\\([^ ]*\\).*/\\1/
3633 cpu=$(check_native -march || check_native -mcpu)
3637 test "${cpu:-host}" = host &&
3638 die "--cpu=host not supported with compiler $cc"
3641 # Deal with common $arch aliases
3655 "Power Macintosh"|ppc*|powerpc*)
3670 i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3675 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3678 # Add processor-specific flags
3679 if enabled aarch64; then
3683 cpuflags="-march=$cpu"
3686 cpuflags="-mcpu=$cpu"
3690 elif enabled alpha; then
3692 cpuflags="-mcpu=$cpu"
3694 elif enabled arm; then
3697 check_cpp_condition stddef.h \
3698 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3703 if check_arm_arch 4; then echo armv4;
3704 elif check_arm_arch 4T; then echo armv4t;
3705 elif check_arm_arch 5; then echo armv5;
3706 elif check_arm_arch 5E; then echo armv5e;
3707 elif check_arm_arch 5T; then echo armv5t;
3708 elif check_arm_arch 5TE; then echo armv5te;
3709 elif check_arm_arch 5TEJ; then echo armv5te;
3710 elif check_arm_arch 6; then echo armv6;
3711 elif check_arm_arch 6J; then echo armv6j;
3712 elif check_arm_arch 6K; then echo armv6k;
3713 elif check_arm_arch 6Z; then echo armv6z;
3714 elif check_arm_arch 6ZK; then echo armv6zk;
3715 elif check_arm_arch 6T2; then echo armv6t2;
3716 elif check_arm_arch 7; then echo armv7;
3717 elif check_arm_arch 7A 7_A; then echo armv7-a;
3718 elif check_arm_arch 7R 7_R; then echo armv7-r;
3719 elif check_arm_arch 7M 7_M; then echo armv7-m;
3720 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3721 elif check_arm_arch 8A 8_A; then echo armv8-a;
3725 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3729 cpuflags="-march=$cpu"
3730 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3733 cpuflags="-mcpu=$cpu"
3735 cortex-a*) subarch=armv7a ;;
3736 cortex-r*) subarch=armv7r ;;
3737 cortex-m*) enable thumb; subarch=armv7m ;;
3738 arm11*) subarch=armv6 ;;
3739 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3740 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3741 *) subarch=$(probe_arm_arch) ;;
3747 armv5t*) enable fast_clz ;;
3750 disabled fast_unaligned || enable fast_unaligned
3754 elif enabled avr32; then
3759 cpuflags="-mpart=$cpu"
3763 cpuflags="-march=$cpu"
3767 cpuflags="-mcpu=$cpu"
3771 cpuflags="-march=$cpu"
3775 elif enabled bfin; then
3777 cpuflags="-mcpu=$cpu"
3779 elif enabled mips; then
3781 cpuflags="-march=$cpu"
3797 24kef*|34kf*|1004kf*)
3805 elif enabled ppc; then
3810 case $(tolower $cpu) in
3811 601|ppc601|powerpc601)
3812 cpuflags="-mcpu=601"
3815 603*|ppc603*|powerpc603*)
3816 cpuflags="-mcpu=603"
3819 604*|ppc604*|powerpc604*)
3820 cpuflags="-mcpu=604"
3823 g3|75*|ppc75*|powerpc75*)
3824 cpuflags="-mcpu=750"
3827 g4|745*|ppc745*|powerpc745*)
3828 cpuflags="-mcpu=7450"
3830 74*|ppc74*|powerpc74*)
3831 cpuflags="-mcpu=7400"
3833 g5|970|ppc970|powerpc970)
3834 cpuflags="-mcpu=970"
3837 cpuflags="-mcpu=$cpu"
3840 cpuflags="-mcpu=cell"
3844 cpuflags="-mcpu=e500mc"
3848 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3853 cpuflags="-mcpu=8540 -mhard-float"
3859 elif enabled sparc; then
3862 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3863 cpuflags="-mcpu=$cpu"
3865 ultrasparc*|niagara[234])
3866 cpuflags="-mcpu=$cpu"
3870 elif enabled x86; then
3874 cpuflags="-march=$cpu"
3878 # targets that do NOT support nopl and conditional mov (cmov)
3879 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3880 cpuflags="-march=$cpu"
3883 # targets that do support nopl and conditional mov (cmov)
3884 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3885 |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3886 cpuflags="-march=$cpu"
3890 # targets that do support conditional mov but on which it's slow
3891 pentium4|pentium4m|prescott|nocona)
3892 cpuflags="-march=$cpu"
3900 if [ "$cpu" != generic ]; then
3901 add_cflags $cpuflags
3902 add_asflags $cpuflags
3905 # compiler sanity check
3907 int main(void){ return 0; }
3909 if test "$?" != 0; then
3910 echo "$cc is unable to create an executable file."
3911 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3912 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3913 echo "Only do this if you know what cross compiling means."
3915 die "C compiler test failed."
3918 add_cppflags -D_ISOC99_SOURCE
3919 add_cxxflags -D__STDC_CONSTANT_MACROS
3920 check_cflags -std=c99
3921 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3924 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3928 add_host_cppflags -D_ISOC99_SOURCE
3929 check_host_cflags -std=c99
3930 check_host_cflags -Wall
3931 check_host_cflags -O3
3937 check_code cc "" "int test[2*($expr) - 1]" &&
3938 subarch=$arch64 || subarch=$arch32
3946 check_64bit mips mips64 '_MIPS_SIM > 1'
3950 check_64bit parisc parisc64 'sizeof(void *) > 4'
3954 check_64bit ppc ppc64 'sizeof(void *) > 4'
3958 check_64bit s390 s390x 'sizeof(void *) > 4'
3962 check_64bit sparc sparc64 'sizeof(void *) > 4'
3966 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3967 # Treat x32 as x64 for now. Note it also needs spic=$shared
3968 test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
3970 if test "$subarch" = "x86_64"; then
3975 check_cc <<EOF && subarch="ppc64"
3976 int test[(int)sizeof(char*) - 7];
3982 enabled spic && enable_weak pic
3988 add_cppflags '-I\$(SRC_PATH)/compat/aix'
3989 enabled shared && add_ldflags -Wl,-brtl
3993 SLIB_INSTALL_NAME='$(SLIBNAME)'
3995 # soname not set on purpose
3999 prefix_default="/boot/common"
4000 network_extralibs="-lnetwork"
4004 SHFLAGS='-shared -Wl,-h,$$(@F)'
4005 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4006 network_extralibs="-lsocket -lnsl"
4007 # When using suncc to build, the Solaris linker will mark
4008 # an executable with each instruction set encountered by
4009 # the Solaris assembler. As our libraries contain their own
4010 # guards for processor-specific code, instead suppress
4011 # generation of the HWCAPS ELF section on Solaris x86 only.
4012 enabled_all suncc x86 &&
4013 echo "hwcap_1 = OVERRIDE;" > mapfile &&
4014 add_ldflags -Wl,-M,mapfile
4015 nm_default='nm -P -g'
4019 oss_indev_extralibs="-lossaudio"
4020 oss_outdev_extralibs="-lossaudio"
4021 enabled gcc || check_ldflags -Wl,-zmuldefs
4026 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4028 oss_indev_extralibs="-lossaudio"
4029 oss_outdev_extralibs="-lossaudio"
4037 add_extralibs -lpoll -lgnugetopt
4041 enabled ppc && add_asflags -force_cpusubtype_ALL
4042 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4043 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4045 add_ldflags -Wl,-dynamic,-search_paths_first
4047 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4048 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4050 enabled x86_64 && objformat="macho64"
4051 enabled_any pic shared ||
4052 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4055 if test $target_os = "mingw32ce"; then
4061 if enabled x86_64; then
4062 LIBTARGET="i386:x86-64"
4063 elif enabled arm; then
4066 enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4067 check_ldflags -Wl,--nxcompat
4068 check_ldflags -Wl,--dynamicbase
4069 enabled x86_32 && check_ldflags -Wl,--large-address-aware
4070 shlibdir_default="$bindir_default"
4073 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4074 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4075 dlltool="${cross_prefix}dlltool"
4076 if check_cmd lib.exe -list; then
4077 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4078 if enabled x86_64; then
4081 elif check_cmd $dlltool --version; then
4082 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4084 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4086 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4087 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4088 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4095 if enabled shared; then
4096 # Link to the import library instead of the normal static library
4099 # Cannot build both shared and static libs with MSVC or icl.
4102 enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4103 shlibdir_default="$bindir_default"
4106 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4107 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4108 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4109 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4111 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4112 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4113 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4120 shlibdir_default="$bindir_default"
4123 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4124 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4125 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4127 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4128 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4131 enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4133 *-dos|freedos|opendos)
4134 network_extralibs="-lsocket"
4137 add_cppflags -U__STRICT_ANSI__
4144 ranlib="echo ignoring ranlib"
4150 add_cppflags -D_GNU_SOURCE
4151 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4152 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4156 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4157 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4158 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4159 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4160 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4161 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4162 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4163 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4164 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4165 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4166 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4168 enable_weak os2threads
4171 add_cppflags -D_BSD_SOURCE
4176 add_cppflags -D_QNX_SOURCE
4177 network_extralibs="-lsocket"
4182 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4183 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4184 add_ldflags -Wl,--target1-abs,--no-undefined \
4185 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4186 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4187 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4188 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4189 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4192 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4197 add_cppflags -D_C99_SNPRINTF_EXTENSION \
4198 -D_REENTRANT_SOURCE \
4199 -D_RESEARCH_SOURCE \
4202 add_compat strtod.o strtod=avpriv_strtod
4203 network_extralibs='-lbsd'
4204 exeobjs=compat/plan9/main.o
4211 die "Unknown OS '$target_os'."
4215 # determine libc flavour
4220 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4221 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4222 eval ${pfx}libc_type=uclibc
4223 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4224 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4225 eval ${pfx}libc_type=glibc
4226 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4227 # MinGW headers can be installed on Cygwin, so check for newlib first.
4228 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4229 eval ${pfx}libc_type=newlib
4230 add_${pfx}cppflags -U__STRICT_ANSI__
4231 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4232 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4233 eval ${pfx}libc_type=mingw64
4234 if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4235 add_compat msvcrt/snprintf.o
4236 add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4238 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4239 eval test \$${pfx_no_}cc_type = "gcc" &&
4240 add_${pfx}cppflags -D__printf__=__gnu_printf__
4241 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4242 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4243 eval ${pfx}libc_type=mingw32
4244 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4245 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4246 die "ERROR: MinGW32 runtime version must be >= 3.15."
4247 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4248 eval test \$${pfx_no_}cc_type = "gcc" &&
4249 add_${pfx}cppflags -D__printf__=__gnu_printf__
4250 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4251 eval ${pfx}libc_type=msvcrt
4252 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4253 # 0x601 by default unless something else is set by the user.
4254 # This can easily lead to us detecting functions only present
4255 # in such new versions and producing binaries requiring windows 7.0.
4256 # Therefore explicitly set the default to XP unless the user has
4257 # set something else on the command line.
4258 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4259 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4260 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4261 eval ${pfx}libc_type=klibc
4262 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4263 eval ${pfx}libc_type=bionic
4264 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4265 eval ${pfx}libc_type=solaris
4266 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4268 check_${pfx}cc <<EOF
4270 void *v = localtime_r;
4272 test "$?" != 0 && check_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4274 void *v = localtime_r;
4280 test -n "$libc_type" && enable libc_$libc_type
4282 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4286 add_compat strtod.o strtod=avpriv_strtod
4289 add_compat strtod.o strtod=avpriv_strtod
4290 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4291 _snprintf=avpriv_snprintf \
4292 vsnprintf=avpriv_vsnprintf
4296 # hacks for compiler/libc/os combinations
4298 if enabled_all tms470 libc_glibc; then
4299 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4300 add_cppflags -D__USER_LABEL_PREFIX__=
4301 add_cppflags -D__builtin_memset=memset
4302 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4303 add_cflags -pds=48 # incompatible redefinition of macro
4306 if enabled_all ccc libc_glibc; then
4307 add_ldflags -Wl,-z,now # calls to libots crash without this
4310 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4311 add_cppflags '-I\$(SRC_PATH)/compat/float'
4314 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4317 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4319 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4321 set_default $PATHS_LIST
4324 # we need to build at least one lib type
4325 if ! enabled_any static shared; then
4327 At least one library type must be built.
4328 Specify --enable-static to build the static libraries or --enable-shared to
4329 build the shared libraries as well. To only build the shared libraries specify
4330 --disable-static in addition to --enable-shared.
4335 die_license_disabled() {
4336 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4339 die_license_disabled_gpl() {
4340 enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4343 die_license_disabled gpl frei0r
4344 die_license_disabled gpl libcdio
4345 die_license_disabled gpl libsmbclient
4346 die_license_disabled gpl libutvideo
4347 die_license_disabled gpl libvidstab
4348 die_license_disabled gpl libx264
4349 die_license_disabled gpl libx265
4350 die_license_disabled gpl libxavs
4351 die_license_disabled gpl libxvid
4352 die_license_disabled gpl libzvbi
4353 die_license_disabled gpl x11grab
4355 die_license_disabled nonfree libaacplus
4356 die_license_disabled nonfree libfaac
4357 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4358 enabled gpl && die_license_disabled_gpl nonfree openssl
4360 die_license_disabled version3 libopencore_amrnb
4361 die_license_disabled version3 libopencore_amrwb
4362 die_license_disabled version3 libsmbclient
4363 die_license_disabled version3 libvo_aacenc
4364 die_license_disabled version3 libvo_amrwbenc
4366 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4368 disabled optimizations || check_cflags -fomit-frame-pointer
4371 disabled pic && return
4374 case "$target_os" in
4384 enabled pic && enable_weak_pic
4386 check_cc <<EOF || die "Symbol mangling check failed."
4389 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4390 extern_prefix=${sym%%ff_extern*}
4392 check_cc <<EOF && enable_weak inline_asm
4393 void foo(void) { __asm__ volatile ("" ::); }
4397 for restrict_keyword in restrict __restrict__ __restrict; do
4398 check_cc <<EOF && _restrict=$restrict_keyword && break
4399 void foo(char * $restrict_keyword p);
4403 check_cc <<EOF && enable pragma_deprecated
4404 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4407 check_cc <<EOF && enable attribute_packed
4408 struct { int x; } __attribute__((packed)) x;
4411 check_cc <<EOF && enable attribute_may_alias
4412 union { int x; } __attribute__((may_alias)) x;
4415 check_cc <<EOF || die "endian test failed"
4416 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4418 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4420 if [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4421 if ! enabled bigendian && enabled altivec ;then
4427 log "check_gas using '$as' as AS"
4428 # :vararg is used on aarch64, arm and ppc altivec
4429 check_as <<EOF || return 1
4430 .macro m n, y:vararg=0
4435 # .altmacro is only used in arm asm
4436 ! enabled arm || check_as <<EOF || return 1
4443 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4445 enabled_any arm aarch64 && nogas=die
4446 enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4450 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4451 gcc) gaspp_as_type=gas ;;
4452 *) gaspp_as_type=$as_type ;;
4455 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4457 test "${as#*gas-preprocessor.pl}" != "$as" ||
4458 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4459 gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4461 if ! check_gas ; then
4464 $nogas "GNU assembler not found, install/update gas-preprocessor"
4467 check_as <<EOF && enable as_func
4473 check_inline_asm inline_asm_labels '"1:\n"'
4475 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4477 if enabled aarch64; then
4478 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4479 # internal assembler in clang 3.3 does not support this instruction
4480 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4481 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4483 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4485 elif enabled alpha; then
4489 elif enabled arm; then
4491 check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4492 float func(float a, float b){ return a+b; }
4495 enabled thumb && check_cflags -mthumb || check_cflags -marm
4497 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4499 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4500 case "${cross_prefix:-$cc}" in
4501 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4502 *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4503 __asm__ (".eabi_attribute 28, 1");
4504 int main(void) { return 0; }
4507 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4510 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4511 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4512 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4513 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4514 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4515 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4516 enabled setend && check_insn setend 'setend be'
4518 [ $target_os = linux ] || [ $target_os = android ] ||
4519 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4522 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4524 check_as <<EOF && enable as_dn_directive
4529 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4531 elif enabled mips; then
4533 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4534 enabled mips32r2 && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4535 check_inline_asm mips32r2 '"rotr $t0, $t1, 1"'
4536 enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4537 check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4538 enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4539 check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4540 enabled mipsfpu && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4541 check_inline_asm mipsfpu '"madd.d $f0, $f2, $f4, $f6"'
4543 elif enabled parisc; then
4545 if enabled gcc; then
4546 case $($cc -dumpversion) in
4547 4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4551 elif enabled ppc; then
4553 enable local_aligned_8 local_aligned_16 local_aligned_32
4555 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4556 check_inline_asm ibm_asm '"add 0, 0, 0"'
4557 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4558 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4560 # AltiVec flags: The FSF version of GCC differs from the Apple version
4561 if enabled altivec; then
4562 check_cflags -maltivec -mabi=altivec &&
4563 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4564 check_cflags -faltivec
4566 # check if our compiler supports Motorola AltiVec C API
4567 check_cc <<EOF || disable altivec
4570 vector signed int v1 = (vector signed int) { 0 };
4571 vector signed int v2 = (vector signed int) { 1 };
4572 v1 = vec_add(v1, v2);
4577 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4580 if enabled vsx; then
4583 elif enabled x86; then
4585 check_builtin rdtsc intrin.h "__rdtsc()"
4586 check_builtin mm_empty mmintrin.h "_mm_empty()"
4588 enable local_aligned_8 local_aligned_16 local_aligned_32
4590 # check whether EBP is available on x86
4591 # As 'i' is stored on the stack, this program will crash
4592 # if the base pointer is used to access it because the
4593 # base pointer is cleared in the inline assembly code.
4594 check_exec_crash <<EOF && enable ebp_available
4596 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4600 # check whether EBX is available on x86
4601 check_inline_asm ebx_available '""::"b"(0)' &&
4602 check_inline_asm ebx_available '"":::"%ebx"'
4604 # check whether xmm clobbers are supported
4605 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4607 check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4608 check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4610 # check whether binutils is new enough to compile SSSE3/MMXEXT
4611 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4612 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4614 if ! disabled_any asm mmx yasm; then
4615 if check_cmd $yasmexe --version; then
4616 enabled x86_64 && yasm_extra="-m amd64"
4617 yasm_debug="-g dwarf2"
4618 elif check_cmd nasm -v; then
4620 yasm_debug="-g -F dwarf"
4621 if enabled x86_64; then
4622 case "$objformat" in
4623 elf) objformat=elf64 ;;
4624 win32) objformat=win64 ;;
4629 YASMFLAGS="-f $objformat $yasm_extra"
4630 enabled pic && append YASMFLAGS "-DPIC"
4631 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4632 case "$objformat" in
4633 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4636 check_yasm "movbe ecx, [5]" && enable yasm ||
4637 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4638 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4639 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4640 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4641 check_yasm "CPU amdnop" || disable cpunop
4645 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4652 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4654 check_ldflags -Wl,--as-needed
4655 check_ldflags -Wl,-z,noexecstack
4657 if check_func dlopen; then
4659 elif check_func dlopen -ldl; then
4663 frei0r_filter_extralibs='$ldl'
4664 frei0r_src_filter_extralibs='$ldl'
4665 ladspa_filter_extralibs='$ldl'
4667 if ! disabled network; then
4668 check_func getaddrinfo $network_extralibs
4669 check_func getservbyport $network_extralibs
4670 check_func inet_aton $network_extralibs
4672 check_type netdb.h "struct addrinfo"
4673 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4674 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4675 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4676 check_type poll.h "struct pollfd"
4677 check_type netinet/sctp.h "struct sctp_event_subscribe"
4678 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4679 check_type netinet/in.h "struct sockaddr_in6"
4680 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4681 check_type "sys/types.h sys/socket.h" socklen_t
4683 # Prefer arpa/inet.h over winsock2
4684 if check_header arpa/inet.h ; then
4685 check_func closesocket
4686 elif check_header winsock2.h ; then
4687 check_func_headers winsock2.h closesocket -lws2 &&
4688 network_extralibs="-lws2" ||
4689 { check_func_headers winsock2.h closesocket -lws2_32 &&
4690 network_extralibs="-lws2_32"; } || disable winsock2_h network
4691 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4693 check_type ws2tcpip.h socklen_t
4694 check_type ws2tcpip.h "struct addrinfo"
4695 check_type ws2tcpip.h "struct group_source_req"
4696 check_type ws2tcpip.h "struct ip_mreq_source"
4697 check_type ws2tcpip.h "struct ipv6_mreq"
4698 check_type winsock2.h "struct pollfd"
4699 check_struct winsock2.h "struct sockaddr" sa_len
4700 check_type ws2tcpip.h "struct sockaddr_in6"
4701 check_type ws2tcpip.h "struct sockaddr_storage"
4707 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4708 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
4709 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4710 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4711 check_builtin sarestart signal.h "SA_RESTART"
4712 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4714 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4715 check_func ${malloc_prefix}memalign && enable memalign
4716 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4719 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4722 check_func gethrtime
4724 check_func getrusage
4725 check_func gettimeofday
4728 check_func localtime_r
4729 check_func mach_absolute_time
4733 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4734 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4735 check_func sched_getaffinity
4736 check_func setrlimit
4737 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4738 check_func strerror_r
4743 check_func_headers conio.h kbhit
4744 check_func_headers io.h setmode
4745 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4746 check_func_headers stdlib.h getenv
4748 check_func_headers windows.h CoTaskMemFree -lole32
4749 check_func_headers windows.h GetProcessAffinityMask
4750 check_func_headers windows.h GetProcessTimes
4751 check_func_headers windows.h GetSystemTimeAsFileTime
4752 check_func_headers windows.h MapViewOfFile
4753 check_func_headers windows.h MoveFileExA
4754 check_func_headers windows.h PeekNamedPipe
4755 check_func_headers windows.h SetConsoleTextAttribute
4756 check_func_headers windows.h Sleep
4757 check_func_headers windows.h VirtualAlloc
4758 check_struct windows.h "CONDITION_VARIABLE" Ptr
4759 check_func_headers glob.h glob
4761 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4763 check_header cl/cl.h
4764 check_header direct.h
4765 check_header dlfcn.h
4767 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4769 check_header libcrystalhd/libcrystalhd_if.h
4770 check_header mach/mach_time.h
4771 check_header malloc.h
4772 check_header net/udplite.h
4774 check_header sys/mman.h
4775 check_header sys/param.h
4776 check_header sys/resource.h
4777 check_header sys/select.h
4778 check_header sys/time.h
4779 check_header sys/un.h
4780 check_header termios.h
4781 check_header unistd.h
4782 check_header vdpau/vdpau.h
4783 check_header vdpau/vdpau_x11.h
4784 check_header VideoDecodeAcceleration/VDADecoder.h
4785 check_header windows.h
4786 check_header X11/extensions/XvMClib.h
4787 check_header asm/types.h
4789 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4790 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4791 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4793 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4795 if ! disabled w32threads && ! enabled pthreads; then
4796 check_func_headers "windows.h process.h" _beginthreadex &&
4797 enable w32threads || disable w32threads
4800 # check for some common methods of building with pthread support
4801 # do this before the optional library checks as some of them require pthreads
4802 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4804 if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4806 add_extralibs -pthread
4807 elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4808 add_cflags -pthreads
4809 add_extralibs -pthreads
4810 elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4811 add_cflags -ldl -pthread
4812 add_extralibs -ldl -pthread
4813 elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4814 add_extralibs -lpthreadGC2
4815 elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4817 elif ! check_func pthread_join && ! check_func pthread_create; then
4820 check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4824 if enabled pthreads; then
4825 check_func pthread_cancel
4828 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4829 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4830 disabled lzma || check_lib2 lzma.h lzma_version_number -llzma || disable lzma
4832 check_lib math.h sin -lm && LIBM="-lm"
4833 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4839 for func in $MATH_FUNCS; do
4840 eval check_mathfunc $func \${${func}_args:-1}
4843 # these are off by default, so fail if requested and not available
4844 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4845 enabled avisynth && { { check_lib2 "windows.h" LoadLibrary; } ||
4846 { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4847 die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4848 enabled decklink && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4849 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4850 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4851 enabled ladspa && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4852 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4853 enabled libaacplus && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4854 enabled libass && require_pkg_config libass ass/ass.h ass_library_init
4855 enabled libbluray && require_pkg_config libbluray libbluray/bluray.h bd_open
4856 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4857 enabled libcelt && require libcelt celt/celt.h celt_decode -lcelt0 &&
4858 { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4859 die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4860 enabled libcaca && require_pkg_config caca caca.h caca_create_canvas
4861 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4862 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4863 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
4864 enabled libflite && require2 libflite "flite/flite.h" flite_init $flite_libs
4865 enabled fontconfig && enable libfontconfig
4866 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4867 enabled libfreetype && require_libfreetype
4868 enabled libfribidi && require_pkg_config fribidi fribidi.h fribidi_version_info
4869 enabled libgme && require libgme gme/gme.h gme_new_emu -lgme -lstdc++
4870 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4871 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4872 done || die "ERROR: libgsm not found"; }
4873 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4874 enabled libmodplug && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
4875 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4876 enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
4877 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4878 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4879 enabled libopencv && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4880 enabled libopenjpeg && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
4881 check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4882 check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4883 die "ERROR: libopenjpeg not found"; }
4884 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4885 enabled libpulse && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4886 enabled libquvi && require_pkg_config libquvi quvi/quvi.h quvi_init
4887 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4888 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4889 enabled libshine && require_pkg_config shine shine/layer3.h shine_encode_buffer
4890 enabled libsmbclient && { use_pkg_config smbclient libsmbclient.h smbc_init ||
4891 require smbclient libsmbclient.h smbc_init -lsmbclient; }
4892 enabled libsoxr && require libsoxr soxr.h soxr_create -lsoxr
4893 enabled libssh && require_pkg_config libssh libssh/sftp.h sftp_init
4894 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4895 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4896 media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4897 media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4898 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4899 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame &&
4900 { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4901 die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4902 enabled libutvideo && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4903 enabled libv4l2 && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4904 enabled libvidstab && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4905 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4906 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4907 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4909 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4910 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4911 enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
4912 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4913 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4914 enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx || disable libvpx_vp9_encoder; } }
4915 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4916 enabled libwebp && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
4917 enabled libx264 && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
4918 { require libx264 x264.h x264_encoder_encode -lx264 &&
4919 warn "using libx264 without pkg-config"; } } &&
4920 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4921 die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4922 enabled libx265 && require_pkg_config x265 x265.h x265_encoder_encode &&
4923 { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4924 die "ERROR: libx265 version must be >= 17."; }
4925 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4926 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4927 enabled libzmq && require_pkg_config libzmq zmq.h zmq_ctx_new
4928 enabled libzvbi && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4929 enabled openal && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4930 check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4931 die "ERROR: openal not found"; } &&
4932 { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4933 die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4934 enabled opencl && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4935 check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4936 die "ERROR: opencl not found"; } &&
4937 { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4938 check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4939 die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4940 enabled opengl && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4941 check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4942 check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4943 check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4944 die "ERROR: opengl not found."
4946 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4947 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4948 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4949 die "ERROR: openssl not found"; }
4950 enabled qtkit_indev && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4952 if enabled gnutls; then
4953 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4954 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4958 if enabled libdc1394; then
4959 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4960 enable libdc1394_2; } ||
4961 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4962 enable libdc1394_1; } ||
4963 die "ERROR: No version of libdc1394 found "
4965 if ! disabled sdl; then
4966 SDL_CONFIG="${cross_prefix}sdl-config"
4967 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4968 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4969 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4972 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4973 sdl_cflags=$("${SDL_CONFIG}" --cflags)
4974 sdl_libs=$("${SDL_CONFIG}" --libs)
4975 check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4976 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4977 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4979 elif enabled sdl ; then
4980 die "ERROR: SDL not found"
4986 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4988 makeinfo --version > /dev/null 2>&1 && enable makeinfo || disable makeinfo
4989 enabled makeinfo && (makeinfo --version | \
4990 grep -q 'makeinfo (GNU texinfo) 5' > /dev/null 2>&1) \
4991 && enable makeinfo_html || disable makeinfo_html
4992 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4993 perl -v > /dev/null 2>&1 && enable perl || disable perl
4994 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4995 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4997 check_header linux/fb.h
4998 check_header linux/videodev.h
4999 check_header linux/videodev2.h
5000 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5002 check_header sys/videoio.h
5003 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5005 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5006 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5007 # w32api 3.12 had it defined wrong
5008 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5010 check_type "dshow.h" IBaseFilter
5012 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5013 { check_header dev/bktr/ioctl_meteor.h &&
5014 check_header dev/bktr/ioctl_bt848.h; } ||
5015 { check_header machine/ioctl_meteor.h &&
5016 check_header machine/ioctl_bt848.h; } ||
5017 { check_header dev/video/meteor/ioctl_meteor.h &&
5018 check_header dev/video/bktr/ioctl_bt848.h; } ||
5019 check_header dev/ic/bt8xx.h
5021 check_header sndio.h
5022 if check_struct sys/soundcard.h audio_buf_info bytes; then
5023 enable_safe sys/soundcard.h
5025 check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5026 #include <sys/soundcard.h>
5030 check_header soundcard.h
5032 enabled_any alsa_indev alsa_outdev &&
5033 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5035 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5036 check_func jack_port_get_latency_range -ljack
5038 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5040 if enabled libcdio; then
5041 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5042 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5043 die "ERROR: libcdio-paranoia not found"
5047 check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5049 if ! disabled libxcb; then
5050 check_pkg_config xcb xcb/xcb.h xcb_connect || {
5051 enabled libxcb && die "ERROR: libxcb not found";
5052 } && disable x11grab && enable libxcb
5054 if enabled libxcb; then
5055 disabled libxcb_shm || {
5056 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5057 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5058 } && check_header sys/shm.h && enable libxcb_shm; }
5060 disabled libxcb_xfixes || {
5061 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5062 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5063 } && enable libxcb_xfixes; }
5065 disabled libxcb_shape || {
5066 check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5067 enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5068 } && enable libxcb_shape; }
5070 add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5071 add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5075 if enabled x11grab; then
5076 enabled xlib || die "ERROR: Xlib not found"
5077 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5078 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5081 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5083 enabled dxva2api_h &&
5084 check_cc <<EOF && enable dxva2api_cobj
5085 #define _WIN32_WINNT 0x0600
5087 #include <windows.h>
5089 #include <dxva2api.h>
5090 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5094 check_lib va/va.h vaInitialize -lva ||
5098 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5101 enabled vdpau && enabled xlib &&
5102 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5103 prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5106 # Funny iconv installations are not unusual, so check it after all flags have been set
5107 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5109 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5111 # add some useful compiler flags if supported
5112 check_cflags -Wdeclaration-after-statement
5114 check_cflags -Wdisabled-optimization
5115 check_cflags -Wpointer-arith
5116 check_cflags -Wredundant-decls
5117 check_cflags -Wwrite-strings
5118 check_cflags -Wtype-limits
5119 check_cflags -Wundef
5120 check_cflags -Wmissing-prototypes
5121 check_cflags -Wno-pointer-to-int-cast
5122 check_cflags -Wstrict-prototypes
5123 check_cflags -Wempty-body
5124 enabled extra_warnings && check_cflags -Winline
5126 check_disable_warning(){
5127 warning_flag=-W${1#-Wno-}
5128 test_cflags $warning_flag && add_cflags $1
5131 check_disable_warning -Wno-parentheses
5132 check_disable_warning -Wno-switch
5133 check_disable_warning -Wno-format-zero-length
5134 check_disable_warning -Wno-pointer-sign
5136 # add some linker flags
5137 check_ldflags -Wl,--warn-common
5138 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5139 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5140 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5142 # add some strip flags
5143 # -wN '..@*' is more selective than -x, but not available everywhere.
5144 check_stripflags -wN \'..@*\' || check_stripflags -x
5146 enabled neon_clobber_test &&
5147 check_ldflags -Wl,--wrap,avcodec_open2 \
5148 -Wl,--wrap,avcodec_decode_audio4 \
5149 -Wl,--wrap,avcodec_decode_video2 \
5150 -Wl,--wrap,avcodec_decode_subtitle2 \
5151 -Wl,--wrap,avcodec_encode_audio2 \
5152 -Wl,--wrap,avcodec_encode_video2 \
5153 -Wl,--wrap,avcodec_encode_subtitle \
5154 -Wl,--wrap,swr_convert \
5155 -Wl,--wrap,avresample_convert ||
5156 disable neon_clobber_test
5158 enabled xmm_clobber_test &&
5159 check_ldflags -Wl,--wrap,avcodec_open2 \
5160 -Wl,--wrap,avcodec_decode_audio4 \
5161 -Wl,--wrap,avcodec_decode_video2 \
5162 -Wl,--wrap,avcodec_decode_subtitle2 \
5163 -Wl,--wrap,avcodec_encode_audio2 \
5164 -Wl,--wrap,avcodec_encode_video \
5165 -Wl,--wrap,avcodec_encode_video2 \
5166 -Wl,--wrap,avcodec_encode_subtitle \
5167 -Wl,--wrap,swr_convert \
5168 -Wl,--wrap,avresample_convert \
5169 -Wl,--wrap,sws_scale ||
5170 disable xmm_clobber_test
5173 if test_ldflags -Wl,--version-script,$TMPV; then
5174 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5175 check_cc <<EOF && enable symver_asm_label
5176 void ff_foo(void) __asm__ ("av_foo@VERSION");
5177 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5179 check_cc <<EOF && enable symver_gnu_asm
5180 __asm__(".symver ff_foo,av_foo@VERSION");
5181 void ff_foo(void) {}
5185 if [ -z "$optflags" ]; then
5186 if enabled small; then
5187 optflags=$cflags_size
5188 elif enabled optimizations; then
5189 optflags=$cflags_speed
5191 optflags=$cflags_noopt
5197 enabled lto && check_ldflags "$@"
5201 if enabled lto; then
5202 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5204 check_ldflags -flto $cpuflags
5205 disable inline_asm_direct_symbol_refs
5208 check_optflags $optflags
5209 check_optflags -fno-math-errno
5210 check_optflags -fno-signed-zeros
5212 enabled ftrapv && check_cflags -ftrapv
5214 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5219 if enabled icc; then
5220 # Just warnings, no remarks
5222 # -wd: Disable following warnings
5223 # 144, 167, 556: -Wno-pointer-sign
5224 # 188: enumerated type mixed with another type
5225 # 1292: attribute "foo" ignored
5226 # 1419: external declaration in primary source file
5227 # 10006: ignoring unknown option -fno-signed-zeros
5228 # 10148: ignoring unknown option -Wno-parentheses
5229 # 10156: ignoring option '-W'; no argument required
5230 check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5231 # 11030: Warning unknown option --as-needed
5232 # 10156: ignoring option '-export'; no argument required
5233 check_ldflags -wd10156,11030
5234 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5235 enable ebp_available
5236 # The test above does not test linking
5237 enabled lto && disable symver_asm_label
5238 if enabled x86_32; then
5239 icc_version=$($cc -dumpversion)
5240 test ${icc_version%%.*} -ge 11 &&
5241 check_cflags -falign-stack=maintain-16-byte ||
5242 disable aligned_stack
5244 elif enabled ccc; then
5245 # disable some annoying warnings
5246 add_cflags -msg_disable bitnotint
5247 add_cflags -msg_disable mixfuncvoid
5248 add_cflags -msg_disable nonstandcast
5249 add_cflags -msg_disable unsupieee
5250 elif enabled gcc; then
5251 check_optflags -fno-tree-vectorize
5252 check_cflags -Werror=format-security
5253 check_cflags -Werror=implicit-function-declaration
5254 check_cflags -Werror=missing-prototypes
5255 check_cflags -Werror=return-type
5256 check_cflags -Werror=vla
5257 check_cflags -Wformat
5258 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5259 elif enabled llvm_gcc; then
5260 check_cflags -mllvm -stack-alignment=16
5261 elif enabled clang; then
5262 check_cflags -mllvm -stack-alignment=16
5263 check_cflags -Qunused-arguments
5264 check_cflags -Werror=implicit-function-declaration
5265 check_cflags -Werror=missing-prototypes
5266 check_cflags -Werror=return-type
5267 elif enabled cparser; then
5268 add_cflags -Wno-missing-variable-declarations
5269 add_cflags -Wno-empty-statement
5270 elif enabled armcc; then
5271 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5272 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5273 # 2523: use of inline assembly is deprecated
5274 add_cflags -W${armcc_opt},--diag_suppress=2523
5275 add_cflags -W${armcc_opt},--diag_suppress=1207
5276 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5277 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5278 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
5279 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
5280 elif enabled tms470; then
5281 add_cflags -pds=824 -pds=837
5283 elif enabled pathscale; then
5284 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5285 elif enabled_any msvc icl; then
5286 enabled x86_32 && disable aligned_stack
5287 enabled_all x86_32 debug && add_cflags -Oy-
5288 enabled debug && add_ldflags -debug
5289 enable pragma_deprecated
5290 if enabled icl; then
5291 # -Qansi-alias is basically -fstrict-aliasing, but does not work
5292 # (correctly) on icl 13.x.
5293 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5294 add_cflags -Qansi-alias
5295 # Some inline asm is not compilable in debug
5296 if enabled debug; then
5297 disable ebp_available
5298 disable ebx_available
5301 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5302 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5307 add_asflags -Qunused-arguments
5313 check_ldflags -Qunused-arguments
5319 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5322 add_cppflags -Dmain=plan9_main
5326 enable frame_thread_encoder
5328 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5330 check_deps $CONFIG_LIST \
5335 enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"
5338 if test $target_os = "haiku"; then
5340 disable posix_memalign
5343 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5344 prepend ffmpeg_libs $($ldflags_filter "-lole32") &&
5347 ! enabled_any memalign posix_memalign aligned_malloc &&
5348 enabled simd_align_16 && enable memalign_hack
5351 # -> enable ${lib}_deps_${dep}
5352 # -> add $dep to ${lib}_deps only once
5356 enabled "${lib}_deps_${dep}" && return 0
5357 enable "${lib}_deps_${dep}"
5358 prepend "${lib}_deps" $dep
5361 # merge deps lib components
5362 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5367 enabled $comp || continue
5368 eval "dep=\"\$${comp}_deps\""
5375 merge_deps libavfilter $FILTER_LIST
5377 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5379 for thread in $THREADS_LIST; do
5380 if enabled $thread; then
5381 test -n "$thread_type" &&
5382 die "ERROR: Only one thread type must be selected." ||
5383 thread_type="$thread"
5387 enabled zlib && add_cppflags -DZLIB_CONST
5389 # conditional library dependencies, in linking order
5390 enabled amovie_filter && prepend avfilter_deps "avformat avcodec"
5391 enabled aresample_filter && prepend avfilter_deps "swresample"
5392 enabled asyncts_filter && prepend avfilter_deps "avresample"
5393 enabled atempo_filter && prepend avfilter_deps "avcodec"
5394 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5395 enabled elbg_filter && prepend avfilter_deps "avcodec"
5396 enabled mcdeint_filter && prepend avfilter_deps "avcodec"
5397 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5398 enabled mp_filter && prepend avfilter_deps "avcodec"
5399 enabled pan_filter && prepend avfilter_deps "swresample"
5400 enabled pp_filter && prepend avfilter_deps "postproc"
5401 enabled removelogo_filter && prepend avfilter_deps "avformat avcodec swscale"
5402 enabled resample_filter && prepend avfilter_deps "avresample"
5403 enabled sab_filter && prepend avfilter_deps "swscale"
5404 enabled scale_filter && prepend avfilter_deps "swscale"
5405 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5406 enabled smartblur_filter && prepend avfilter_deps "swscale"
5407 enabled subtitles_filter && prepend avfilter_deps "avformat avcodec"
5409 enabled lavfi_indev && prepend avdevice_deps "avfilter"
5411 enabled opus_decoder && prepend avcodec_deps "swresample"
5415 eval "deps=\$$lib_deps"
5416 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5420 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5421 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5423 map 'expand_deps $v' $LIBRARY_LIST
5425 echo "install prefix $prefix"
5426 echo "source path $source_path"
5427 echo "C compiler $cc"
5428 echo "C library $libc_type"
5429 if test "$host_cc" != "$cc"; then
5430 echo "host C compiler $host_cc"
5431 echo "host C library $host_libc_type"
5433 echo "ARCH $arch ($cpu)"
5434 if test "$build_suffix" != ""; then
5435 echo "build suffix $build_suffix"
5437 if test "$progs_suffix" != ""; then
5438 echo "progs suffix $progs_suffix"
5440 if test "$extra_version" != ""; then
5441 echo "version string suffix $extra_version"
5443 echo "big-endian ${bigendian-no}"
5444 echo "runtime cpu detection ${runtime_cpudetect-no}"
5445 if enabled x86; then
5446 echo "${yasmexe} ${yasm-no}"
5447 echo "MMX enabled ${mmx-no}"
5448 echo "MMXEXT enabled ${mmxext-no}"
5449 echo "3DNow! enabled ${amd3dnow-no}"
5450 echo "3DNow! extended enabled ${amd3dnowext-no}"
5451 echo "SSE enabled ${sse-no}"
5452 echo "SSSE3 enabled ${ssse3-no}"
5453 echo "AVX enabled ${avx-no}"
5454 echo "XOP enabled ${xop-no}"
5455 echo "FMA3 enabled ${fma3-no}"
5456 echo "FMA4 enabled ${fma4-no}"
5457 echo "i686 features enabled ${i686-no}"
5458 echo "CMOV is fast ${fast_cmov-no}"
5459 echo "EBX available ${ebx_available-no}"
5460 echo "EBP available ${ebp_available-no}"
5462 if enabled aarch64; then
5463 echo "NEON enabled ${neon-no}"
5464 echo "VFP enabled ${vfp-no}"
5466 if enabled arm; then
5467 echo "ARMv5TE enabled ${armv5te-no}"
5468 echo "ARMv6 enabled ${armv6-no}"
5469 echo "ARMv6T2 enabled ${armv6t2-no}"
5470 echo "VFP enabled ${vfp-no}"
5471 echo "NEON enabled ${neon-no}"
5472 echo "THUMB enabled ${thumb-no}"
5474 if enabled mips; then
5475 echo "MIPS FPU enabled ${mipsfpu-no}"
5476 echo "MIPS32R2 enabled ${mips32r2-no}"
5477 echo "MIPS DSP R1 enabled ${mipsdspr1-no}"
5478 echo "MIPS DSP R2 enabled ${mipsdspr2-no}"
5480 if enabled ppc; then
5481 echo "AltiVec enabled ${altivec-no}"
5482 echo "PPC 4xx optimizations ${ppc4xx-no}"
5483 echo "PPC VSX optimizations ${vsx-no}"
5484 echo "dcbzl available ${dcbzl-no}"
5486 echo "debug symbols ${debug-no}"
5487 echo "strip symbols ${stripping-no}"
5488 echo "optimize for size ${small-no}"
5489 echo "optimizations ${optimizations-no}"
5490 echo "static ${static-no}"
5491 echo "shared ${shared-no}"
5492 echo "postprocessing support ${postproc-no}"
5493 echo "new filter support ${avfilter-no}"
5494 echo "network support ${network-no}"
5495 echo "threading support ${thread_type-no}"
5496 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5497 echo "SDL support ${sdl-no}"
5498 echo "opencl enabled ${opencl-no}"
5499 echo "texi2html enabled ${texi2html-no}"
5500 echo "perl enabled ${perl-no}"
5501 echo "pod2man enabled ${pod2man-no}"
5502 echo "makeinfo enabled ${makeinfo-no}"
5503 echo "makeinfo supports HTML ${makeinfo_html-no}"
5504 test -n "$random_seed" &&
5505 echo "random seed ${random_seed}"
5508 echo "External libraries:"
5509 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5512 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5513 echo "Enabled ${type}s:"
5514 eval list=\$$(toupper $type)_LIST
5515 print_enabled '_*' $list | print_3_columns
5519 license="LGPL version 2.1 or later"
5520 if enabled nonfree; then
5521 license="nonfree and unredistributable"
5522 elif enabled gplv3; then
5523 license="GPL version 3 or later"
5524 elif enabled lgplv3; then
5525 license="LGPL version 3 or later"
5526 elif enabled gpl; then
5527 license="GPL version 2 or later"
5530 echo "License: $license"
5532 echo "Creating config.mak, config.h, and doc/config.texi..."
5534 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5536 enabled stripping || strip="echo skipping strip"
5538 config_files="$TMPH config.mak doc/config.texi"
5540 cat > config.mak <<EOF
5541 # Automatically generated by configure - do not modify!
5542 ifndef FFMPEG_CONFIG_MAK
5544 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5546 LIBDIR=\$(DESTDIR)$libdir
5547 SHLIBDIR=\$(DESTDIR)$shlibdir
5548 INCDIR=\$(DESTDIR)$incdir
5549 BINDIR=\$(DESTDIR)$bindir
5550 DATADIR=\$(DESTDIR)$datadir
5551 DOCDIR=\$(DESTDIR)$docdir
5552 MANDIR=\$(DESTDIR)$mandir
5553 SRC_PATH=$source_path
5554 ifndef MAIN_MAKEFILE
5555 SRC_PATH:=\$(SRC_PATH:.%=..%)
5559 INTRINSICS=$intrinsics
5565 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5567 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5596 LDEXEFLAGS=$LDEXEFLAGS
5597 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5598 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5599 YASMFLAGS=$YASMFLAGS
5600 BUILDSUF=$build_suffix
5601 PROGSSUF=$progs_suffix
5609 EXTRA_VERSION=$extra_version
5612 CCDEP_FLAGS=$CCDEP_FLAGS
5614 ASDEP_FLAGS=$ASDEP_FLAGS
5615 CC_DEPFLAGS=$CC_DEPFLAGS
5616 AS_DEPFLAGS=$AS_DEPFLAGS
5619 HOSTCFLAGS=$host_cflags
5620 HOSTCPPFLAGS=$host_cppflags
5621 HOSTEXESUF=$HOSTEXESUF
5622 HOSTLDFLAGS=$host_ldflags
5625 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5626 HOSTCCDEP=$HOSTCCDEP
5627 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5628 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5632 TARGET_EXEC=$target_exec $target_exec_args
5633 TARGET_PATH=$target_path
5634 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5635 CFLAGS-ffplay=$sdl_cflags
5636 ZLIB=$($ldflags_filter -lz)
5637 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5638 EXTRALIBS=$extralibs
5639 COMPAT_OBJS=$compat_objs
5642 LIBTARGET=${LIBTARGET}
5643 SLIBNAME=${SLIBNAME}
5644 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5645 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5646 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5647 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5648 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5649 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5650 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5651 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5652 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5653 NOREDZONE_FLAGS=$noredzone_flags
5658 name=$(toupper $lcname)
5659 file=$source_path/$lcname/version.h
5660 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5661 enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5662 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5663 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5664 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5665 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5668 map 'get_version $v' $LIBRARY_LIST
5670 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5672 print_program_libs(){
5673 eval "program_libs=\$${1}_libs"
5674 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5677 map 'print_program_libs $v' $PROGRAM_LIST
5680 /* Automatically generated by configure - do not modify! */
5681 #ifndef FFMPEG_CONFIG_H
5682 #define FFMPEG_CONFIG_H
5683 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5684 #define FFMPEG_LICENSE "$(c_escape $license)"
5685 #define CONFIG_THIS_YEAR 2014
5686 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5687 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5688 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5689 #define av_restrict $_restrict
5690 #define EXTERN_PREFIX "${extern_prefix}"
5691 #define EXTERN_ASM ${extern_prefix}
5692 #define BUILDSUF "$build_suffix"
5693 #define SLIBSUF "$SLIBSUF"
5694 #define HAVE_MMX2 HAVE_MMXEXT
5695 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5698 test -n "$assert_level" &&
5699 echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5701 test -n "$malloc_prefix" &&
5702 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5704 if enabled yasm; then
5705 append config_files $TMPASM
5709 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5713 echo "@c auto-generated by configure" > doc/config.texi
5715 print_config ARCH_ "$config_files" $ARCH_LIST
5716 print_config HAVE_ "$config_files" $HAVE_LIST
5717 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5721 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5722 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5724 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5725 cp_if_changed $TMPH config.h
5728 enabled yasm && cp_if_changed $TMPASM config.asm
5731 /* Generated by ffconf */
5732 #ifndef AVUTIL_AVCONFIG_H
5733 #define AVUTIL_AVCONFIG_H
5736 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5738 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5740 cp_if_changed $TMPH libavutil/avconfig.h
5742 if test -n "$WARNINGS"; then
5743 printf "\n$WARNINGS"
5744 enabled fatal_warnings && exit 1
5747 # build pkg-config files
5750 eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5753 pkgconfig_generate(){
5755 shortname=${name#lib}${build_suffix}
5759 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5760 requires=${requires%, }
5761 enabled ${name#lib} || return 0
5763 cat <<EOF > $name/$name${build_suffix}.pc
5765 exec_prefix=\${prefix}
5770 Description: $comment
5772 Requires: $(enabled shared || echo $requires)
5773 Requires.private: $(enabled shared && echo $requires)
5775 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5776 Libs.private: $(enabled shared && echo $libs)
5777 Cflags: -I\${includedir}
5780 mkdir -p doc/examples/pc-uninstalled
5781 includedir=${source_path}
5782 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5783 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5786 libdir=\${pcfiledir}/../../../$name
5787 includedir=${includedir}
5790 Description: $comment
5794 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5795 Cflags: -I\${includedir}
5799 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5800 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5801 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5802 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5803 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5804 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" ""
5805 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5806 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"
5807 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM"