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 [LIBDIR]
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-libmfx enable HW acceleration through libmfx
223 --enable-libmodplug enable ModPlug via libmodplug [no]
224 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
225 --enable-libnut enable NUT (de)muxing via libnut,
226 native (de)muxer exists [no]
227 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
228 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
229 --enable-libopencv enable video filtering via libopencv [no]
230 --enable-libopenh264 enable H.264 encoding via OpenH264 [no]
231 --enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
232 --enable-libopus enable Opus de/encoding via libopus [no]
233 --enable-libpulse enable Pulseaudio input via libpulse [no]
234 --enable-libquvi enable quvi input via libquvi [no]
235 --enable-librtmp enable RTMP[E] support via librtmp [no]
236 --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
237 --enable-libshine enable fixed-point MP3 encoding via libshine [no]
238 --enable-libsmbclient enable Samba protocol via libsmbclient [no]
239 --enable-libsoxr enable Include libsoxr resampling [no]
240 --enable-libspeex enable Speex de/encoding via libspeex [no]
241 --enable-libssh enable SFTP protocol via libssh [no]
242 --enable-libstagefright-h264 enable H.264 decoding via libstagefright [no]
243 --enable-libtheora enable Theora encoding via libtheora [no]
244 --enable-libtwolame enable MP2 encoding via libtwolame [no]
245 --enable-libutvideo enable Ut Video encoding and decoding via libutvideo [no]
246 --enable-libv4l2 enable libv4l2/v4l-utils [no]
247 --enable-libvidstab enable video stabilization using vid.stab [no]
248 --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no]
249 --enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
250 --enable-libvorbis enable Vorbis en/decoding via libvorbis,
251 native implementation exists [no]
252 --enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
253 --enable-libwavpack enable wavpack encoding via libwavpack [no]
254 --enable-libwebp enable WebP encoding via libwebp [no]
255 --enable-libx264 enable H.264 encoding via x264 [no]
256 --enable-libx265 enable HEVC encoding via x265 [no]
257 --enable-libxavs enable AVS encoding via xavs [no]
258 --enable-libxcb enable X11 grabbing using XCB [auto]
259 --enable-libxcb-shm enable X11 grabbing shm communication [auto]
260 --enable-libxcb-xfixes enable X11 grabbing mouse rendering [auto]
261 --enable-libxcb-shape enable X11 grabbing shape rendering [auto]
262 --enable-libxvid enable Xvid encoding via xvidcore,
263 native MPEG-4/Xvid encoder exists [no]
264 --enable-libzmq enable message passing via libzmq [no]
265 --enable-libzvbi enable teletext support via libzvbi [no]
266 --disable-lzma disable lzma [autodetect]
267 --enable-decklink enable Blackmagick DeckLink I/O support [no]
268 --enable-nvenc enable NVIDIA NVENC support [no]
269 --enable-openal enable OpenAL 1.1 capture support [no]
270 --enable-opencl enable OpenCL code
271 --enable-opengl enable OpenGL rendering [no]
272 --enable-openssl enable openssl, needed for https support
273 if gnutls is not used [no]
274 --disable-sdl disable sdl [autodetect]
275 --enable-x11grab enable X11 grabbing (legacy) [no]
276 --disable-xlib disable xlib [autodetect]
277 --disable-zlib disable zlib [autodetect]
280 --arch=ARCH select architecture [$arch]
281 --cpu=CPU select the minimum required CPU (affects
282 instruction selection, may crash on older CPUs)
283 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
284 --progs-suffix=SUFFIX program name suffix []
285 --enable-cross-compile assume a cross-compiler is used
286 --sysroot=PATH root of cross-build tree
287 --sysinclude=PATH location of cross-build system headers
288 --target-os=OS compiler targets OS [$target_os]
289 --target-exec=CMD command to run executables on target
290 --target-path=DIR path to view of build directory on target
291 --target-samples=DIR path to samples directory on target
292 --tempprefix=PATH force fixed dir/prefix instead of mktemp for checks
293 --toolchain=NAME set tool defaults according to NAME
294 --nm=NM use nm tool NM [$nm_default]
295 --ar=AR use archive tool AR [$ar_default]
296 --as=AS use assembler AS [$as_default]
297 --windres=WINDRES use windows resource compiler WINDRES [$windres_default]
298 --yasmexe=EXE use yasm-compatible assembler EXE [$yasmexe_default]
299 --cc=CC use C compiler CC [$cc_default]
300 --cxx=CXX use C compiler CXX [$cxx_default]
301 --dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
302 --ld=LD use linker LD [$ld_default]
303 --pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
304 --pkg-config-flags=FLAGS pass additional flags to pkgconf []
305 --ranlib=RANLIB use ranlib RANLIB [$ranlib_default]
306 --doxygen=DOXYGEN use DOXYGEN to generate API doc [$doxygen_default]
307 --host-cc=HOSTCC use host C compiler HOSTCC
308 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
309 --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
310 --host-ld=HOSTLD use host linker HOSTLD
311 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
312 --host-libs=HLIBS use libs HLIBS when linking for host
313 --host-os=OS compiler host OS [$target_os]
314 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
315 --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
316 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
317 --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
318 --extra-libs=ELIBS add ELIBS [$ELIBS]
319 --extra-version=STRING version string suffix []
320 --optflags=OPTFLAGS override optimization-related compiler flags
321 --build-suffix=SUFFIX library name suffix []
322 --enable-pic build position-independent code
323 --enable-thumb compile for Thumb instruction set
324 --enable-lto use link-time optimization
326 Advanced options (experts only):
327 --malloc-prefix=PREFIX prefix malloc and related names with PREFIX
328 --disable-symver disable symbol versioning
329 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
330 --disable-safe-bitstream-reader
331 disable buffer boundary checking in bitreaders
332 (faster, but may crash)
333 --enable-memalign-hack emulate memalign, interferes with memory debuggers
334 --sws-max-filter-size=N the max filter size swscale uses [$sws_max_filter_size_default]
336 Optimization options (experts only):
337 --disable-asm disable all assembly optimizations
338 --disable-altivec disable AltiVec optimizations
339 --disable-amd3dnow disable 3DNow! optimizations
340 --disable-amd3dnowext disable 3DNow! extended optimizations
341 --disable-mmx disable MMX optimizations
342 --disable-mmxext disable MMXEXT optimizations
343 --disable-sse disable SSE optimizations
344 --disable-sse2 disable SSE2 optimizations
345 --disable-sse3 disable SSE3 optimizations
346 --disable-ssse3 disable SSSE3 optimizations
347 --disable-sse4 disable SSE4 optimizations
348 --disable-sse42 disable SSE4.2 optimizations
349 --disable-avx disable AVX optimizations
350 --disable-xop disable XOP optimizations
351 --disable-fma3 disable FMA3 optimizations
352 --disable-fma4 disable FMA4 optimizations
353 --disable-avx2 disable AVX2 optimizations
354 --disable-armv5te disable armv5te optimizations
355 --disable-armv6 disable armv6 optimizations
356 --disable-armv6t2 disable armv6t2 optimizations
357 --disable-vfp disable VFP optimizations
358 --disable-neon disable NEON optimizations
359 --disable-inline-asm disable use of inline assembly
360 --disable-yasm disable use of nasm/yasm assembly
361 --disable-mips32r2 disable MIPS32R2 optimizations
362 --disable-mipsdspr1 disable MIPS DSP ASE R1 optimizations
363 --disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations
364 --disable-mipsfpu disable floating point MIPS optimizations
365 --disable-fast-unaligned consider unaligned accesses slow
367 Developer options (useful when working on FFmpeg itself):
368 --disable-debug disable debugging symbols
369 --enable-debug=LEVEL set the debug level [$debuglevel]
370 --disable-optimizations disable compiler optimizations
371 --enable-extra-warnings enable more compiler warnings
372 --disable-stripping disable stripping of executables and shared libraries
373 --assert-level=level 0(default), 1 or 2, amount of assertion testing,
374 2 causes a slowdown at runtime.
375 --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
376 --valgrind=VALGRIND run "make fate" tests through valgrind to detect memory
377 leaks and errors, using the specified valgrind binary.
378 Cannot be combined with --target-exec
379 --enable-ftrapv Trap arithmetic overflows
380 --samples=PATH location of test samples for FATE, if not set use
381 \$FATE_SAMPLES at make invocation time.
382 --enable-neon-clobber-test check NEON registers for clobbering (should be
383 used only for debugging purposes)
384 --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
385 should be used only for debugging purposes)
386 --enable-random randomly enable/disable components
388 --enable-random=LIST randomly enable/disable specific components or
389 --disable-random=LIST component groups. LIST is a comma-separated list
390 of NAME[:PROB] entries where NAME is a component
391 (group) and PROB the probability associated with
393 --random-seed=VALUE seed value for --enable/disable-random
395 NOTE: Object files are built at the place where configure is launched.
403 echo "$@" >> $logfile
408 pr -n -t $1 >> $logfile
419 WARNINGS="${WARNINGS}WARNING: $*\n"
426 If you think configure made a mistake, make sure you are using the latest
427 version from Git. If the latest version fails, report the problem to the
428 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
430 if disabled logging; then
432 Rerun configure with logging enabled (do not use --disable-logging), and
433 include the log this produces with your report.
437 Include the log file "$logfile" produced by configure as this will help
444 # Avoid locale weirdness, besides we really just want to translate ASCII.
446 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
450 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
454 echo "$*" | sed 's/["\\]/\\\0/g'
458 v=$(echo "$1" | sed "s/'/'\\\\''/g")
459 test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
464 echo "$@" | sed 's/^ *//;s/ */ /g;s/ *$//;s/\\r//g'
471 eval "case $v in $pat) echo $v ;; esac"
479 eval "case $v in $pat) ;; *) echo $v ;; esac"
486 for v; do eval $m; done
492 for v; do echo ${v}${suffix}; done
507 eval : \${$var:=$value}
512 echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
518 eval $(sanitize_var_name "$var")='$*'
522 eval echo \$$(sanitize_var_name "$1")
527 eval level=\${${pvar}_level:=0}
528 eval ${pvar}_${level}="\$$pvar"
529 eval ${pvar}_level=$(($level+1))
535 eval level=\${${pvar}_level:-0}
536 test $level = 0 && continue
537 eval level=$(($level-1))
538 eval $pvar="\${${pvar}_${level}}"
539 eval ${pvar}_level=$level
540 eval unset ${pvar}_${level}
562 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
568 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
574 enabled $var && continue
575 eval sel="\$${var}_select"
576 eval sgs="\$${var}_suggest"
580 enable_deep_weak $sgs
592 disabled $var && continue
601 test "${1#!}" = "$1" && op== || op=!=
602 eval test "x\$${1#!}" $op "xyes"
606 test "${1#!}" = "$1" && op== || op=!=
607 eval test "x\$${1#!}" $op "xno"
612 enabled $opt || return 1
618 disabled $opt || return 1
624 enabled $opt && return 0
630 disabled $opt && return 0
637 eval : \${$opt:=\$${opt}_default}
645 [ $var = $value ] && return 0
653 enabled ${cfg}_checking && die "Circular dependency for $cfg."
654 disabled ${cfg}_checking && continue
655 enable ${cfg}_checking
658 eval dep_all="\$${cfg}_deps"
659 eval dep_any="\$${cfg}_deps_any"
660 eval dep_sel="\$${cfg}_select"
661 eval dep_sgs="\$${cfg}_suggest"
662 eval dep_ifa="\$${cfg}_if"
663 eval dep_ifn="\$${cfg}_if_any"
665 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
666 do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
667 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
669 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
670 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
671 enabled_all $dep_all || disable $cfg
672 enabled_any $dep_any || disable $cfg
673 disabled_any $dep_sel && disable $cfg
675 if enabled $cfg; then
677 enable_deep_weak $dep_sgs
680 disable ${cfg}_checking
689 for cfg in $allopts; do
690 enabled $cfg || continue
691 eval dep_extralibs="\$${cfg}_extralibs"
692 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
700 map 'eval echo "$v \${$v:-no}"' "$@" |
701 awk "BEGIN { split(\"$files\", files) }
703 c = \"$pfx\" toupper(\$1);
709 if (file ~ /\\.h\$/) {
710 printf(\"#define %s %d\\n\", c, v) >>file;
711 } else if (file ~ /\\.asm\$/) {
712 printf(\"%%define %s %d\\n\", c, v) >>file;
713 } else if (file ~ /\\.mak\$/) {
714 n = -v ? \"\" : \"!\";
715 printf(\"%s%s=yes\\n\", n, c) >>file;
716 } else if (file ~ /\\.texi\$/) {
717 pre = -v ? \"\" : \"@c \";
720 gsub(/_/, \"-\", c2);
721 printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
731 enabled $v && printf "%s\n" ${v%$suf};
738 eval "$var=\"\$$var $*\""
744 eval "$var=\"$* \$$var\""
750 for tok in $(eval echo \$$var); do
751 uniq_list="$(filter_out $tok $uniq_list) $tok"
753 eval "$var=\"${uniq_list}\""
761 append CFLAGS $($cflags_filter "$@")
765 append CXXFLAGS $($cflags_filter "$@")
769 append ASFLAGS $($asflags_filter "$@")
773 append LDFLAGS $($ldflags_filter "$@")
777 append LDEXEFLAGS $($ldflags_filter "$@")
781 append ASMSTRIPFLAGS "$@"
785 prepend extralibs $($ldflags_filter "$@")
789 append host_cppflags "$@"
793 append host_cflags $($host_cflags_filter "$@")
797 append host_ldflags $($host_ldflags_filter "$@")
801 append compat_objs $1
803 map 'add_cppflags -D$v' "$@"
808 "$@" >> $logfile 2>&1
813 stat "$1" >> $logfile 2>&1
817 eval printf '%s\\n' $CC_O
821 eval printf '%s\\n' $CC_E
828 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
835 check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
842 check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
849 check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
853 eval printf '%s\\n' $AS_O
860 check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
864 log check_inline_asm "$@"
869 check_cc "$@" <<EOF && enable $name
870 void foo(void){ __asm__ volatile($code); }
876 check_inline_asm ${1}_inline "\"$2\""
877 echo "$2" | check_as && enable ${1}_external || disable ${1}_external
885 check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
889 eval printf '%s\\n' $LD_O
896 flags=$(filter_out '-l*|*.so' $@)
897 libs=$(filter '-l*|*.so' $@)
898 check_$type $($cflags_filter $flags) || return
899 flags=$($ldflags_filter $flags)
900 libs=$($ldflags_filter $libs)
901 check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
906 test "${hdr%.h}" = "${hdr}" &&
907 echo "#include $hdr" ||
908 echo "#include <$hdr>"
918 for hdr in $headers; do
921 echo "int main(void) { $code; return 0; }"
922 } | check_$check "$@"
926 log check_cppflags "$@"
927 check_cc "$@" <<EOF && append CPPFLAGS "$@"
934 set -- $($cflags_filter "$@")
941 log check_cflags "$@"
942 test_cflags "$@" && add_cflags "$@"
946 log check_cxxflags "$@"
947 set -- $($cflags_filter "$@")
948 check_cxx "$@" <<EOF && append CXXFLAGS "$@"
954 log test_ldflags "$@"
955 check_ld "cc" "$@" <<EOF
956 int main(void){ return 0; }
961 log check_ldflags "$@"
962 test_ldflags "$@" && add_ldflags "$@"
966 log test_stripflags "$@"
967 # call check_cc to get a fresh TMPO
969 int main(void) { return 0; }
971 check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
975 log check_stripflags "$@"
976 test_stripflags "$@" && add_stripflags "$@"
980 log check_header "$@"
984 check_cpp "$@" <<EOF && enable_safe $header
991 log check_header_oc "$@"
997 echo "#include <$header>"
998 echo "int main(void) { return 0; }"
999 } | check_oc && check_stat "$TMPO" && enable_safe $headers
1007 check_ld "cc" "$@" <<EOF && enable $func
1009 int main(void){ $func(); }
1014 log check_mathfunc "$@"
1018 test $narg = 2 && args="f, g" || args="f"
1020 check_ld "cc" "$@" <<EOF && enable $func
1022 float foo(float f, float g) { return $func($args); }
1023 int main(void){ return (int) foo; }
1027 check_func_headers(){
1028 log check_func_headers "$@"
1033 for hdr in $headers; do
1036 for func in $funcs; do
1037 echo "long check_$func(void) { return (long) $func; }"
1039 echo "int main(void) { return 0; }"
1040 } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1043 check_class_headers_cpp(){
1044 log check_class_headers_cpp "$@"
1049 for hdr in $headers; do
1050 echo "#include <$hdr>"
1052 echo "int main(void) { "
1054 for class in $classes; do
1055 echo "$class obj$i;"
1059 } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1062 check_cpp_condition(){
1063 log check_cpp_condition "$@"
1067 check_cpp "$@" <<EOF
1070 #error "unsatisfied condition: $condition"
1080 check_header $header && check_func $func "$@" && add_extralibs "$@"
1088 check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1092 log check_lib_cpp "$@"
1096 check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1100 log check_pkg_config "$@"
1106 check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1107 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1108 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1109 check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1110 set_safe ${pkg}_cflags $pkg_cflags &&
1111 set_safe ${pkg}_libs $pkg_libs
1115 check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1121 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
1122 # are safe but may not be available everywhere. Thus we use
1123 # raise(SIGTERM) instead. The check is run in a subshell so we
1124 # can redirect the "Terminated" message from the shell. SIGBUS
1125 # is not defined by standard C so it is used conditionally.
1127 (check_exec "$@") >> $logfile 2>&1 <<EOF
1129 static void sighandler(int sig){
1135 int (*func_ptr)(void) = foo;
1137 signal(SIGILL, sighandler);
1138 signal(SIGFPE, sighandler);
1139 signal(SIGSEGV, sighandler);
1141 signal(SIGBUS, sighandler);
1153 disable_safe "$type"
1154 check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1158 log check_struct "$@"
1163 disable_safe "${struct}_${member}"
1164 check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1165 enable_safe "${struct}_${member}"
1169 log check_builtin "$@"
1175 check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1178 check_compile_assert(){
1179 log check_compile_assert "$@"
1185 check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1193 check_lib $header $func "$@" || die "ERROR: $name not found"
1201 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1209 check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1214 check_pkg_config "$@" || return 1
1215 add_cflags $(get_safe ${pkg}_cflags)
1216 add_extralibs $(get_safe ${pkg}_libs)
1219 require_pkg_config(){
1220 use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1223 require_libfreetype(){
1224 log require_libfreetype "$@"
1226 check_cmd $pkg_config --exists --print-errors $pkg \
1227 || die "ERROR: $pkg not found"
1228 pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1229 pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1231 echo "#include <ft2build.h>"
1232 echo "#include FT_FREETYPE_H"
1233 echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1234 echo "int main(void) { return 0; }"
1235 } | check_ld "cc" $pkg_cflags $pkg_libs \
1236 && set_safe ${pkg}_cflags $pkg_cflags \
1237 && set_safe ${pkg}_libs $pkg_libs \
1238 || die "ERROR: $pkg not found"
1239 add_cflags $(get_safe ${pkg}_cflags)
1240 add_extralibs $(get_safe ${pkg}_libs)
1244 eval printf '%s\\n' $HOSTCC_E
1248 eval printf '%s\\n' $HOSTCC_O
1252 log check_host_cc "$@"
1255 check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1259 log check_host_cpp "$@"
1262 check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1265 check_host_cppflags(){
1266 log check_host_cppflags "$@"
1267 check_host_cc "$@" <<EOF && append host_cppflags "$@"
1272 check_host_cflags(){
1273 log check_host_cflags "$@"
1274 set -- $($host_cflags_filter "$@")
1275 check_host_cc "$@" <<EOF && append host_cflags "$@"
1280 check_host_cpp_condition(){
1281 log check_host_cpp_condition "$@"
1285 check_host_cpp "$@" <<EOF
1288 #error "unsatisfied condition: $condition"
1296 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1300 cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1301 mkdir -p "$(dirname $2)"
1305 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1306 # system-dependent things.
1323 avio_reading_example
1324 decoding_encoding_example
1325 demuxing_decoding_example
1327 filter_audio_example
1328 filtering_audio_example
1329 filtering_video_example
1333 resampling_audio_example
1334 scaling_video_example
1335 transcode_aac_example
1339 EXTERNAL_LIBRARY_LIST="
1432 safe_bitstream_reader
1492 $EXTERNAL_LIBRARY_LIST
1500 incompatible_libav_abi
1561 ARCH_EXT_LIST_MIPS="
1568 ARCH_EXT_LIST_X86_SIMD="
1595 $ARCH_EXT_LIST_X86_SIMD
1621 atomic_compare_exchange
1627 sync_val_compare_and_swap
1638 incompatible_libav_abi
1647 cdio_paranoia_paranoia_h
1648 dev_bktr_ioctl_bt848_h
1649 dev_bktr_ioctl_meteor_h
1651 dev_video_bktr_ioctl_bt848_h
1652 dev_video_meteor_ioctl_meteor_h
1660 machine_ioctl_bt848_h
1661 machine_ioctl_meteor_h
1663 openjpeg_1_5_openjpeg_h
1730 GetProcessAffinityMask
1731 GetProcessMemoryInfo
1735 GetSystemTimeAsFileTime
1742 jack_port_get_latency_range
1757 SetConsoleTextAttribute
1769 TOOLCHAIN_FEATURES="
1781 inline_asm_nonlocal_labels
1782 inline_asm_direct_symbol_refs
1793 CONDITION_VARIABLE_Ptr
1797 struct_group_source_req
1798 struct_ip_mreq_source
1801 struct_rusage_ru_maxrss
1802 struct_sctp_event_subscribe
1804 struct_sockaddr_sa_len
1805 struct_sockaddr_storage
1806 struct_stat_st_mtim_tv_nsec
1807 struct_v4l2_frmivalenum_discrete
1812 $(add_suffix _external $ARCH_EXT_LIST)
1813 $(add_suffix _inline $ARCH_EXT_LIST)
1845 # options emitted with CONFIG_ prefix but not available on the command line
1859 frame_thread_encoder
1982 # code dependency declarations
1984 # architecture extensions
1989 armv8_deps="aarch64"
1990 neon_deps_any="aarch64 arm"
1991 intrinsics_neon_deps="neon"
1992 vfp_deps_any="aarch64 arm"
1996 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1999 mips32r2_deps="mips"
2000 mipsdspr1_deps="mips"
2001 mipsdspr2_deps="mips"
2008 x86_64_select="i686"
2009 x86_64_suggest="fast_cmov"
2012 amd3dnowext_deps="amd3dnow"
2028 mmx_external_deps="yasm"
2029 mmx_inline_deps="inline_asm"
2030 mmx_suggest="mmx_external mmx_inline"
2032 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2033 eval dep=\$${ext}_deps
2034 eval ${ext}_external_deps='"${dep}_external"'
2035 eval ${ext}_inline_deps='"${dep}_inline"'
2036 eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2039 aligned_stack_if_any="aarch64 ppc x86"
2040 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2041 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2042 fast_unaligned_if_any="aarch64 ppc x86"
2043 simd_align_16_if_any="altivec neon sse"
2045 # system capabilities
2047 symver_if_any="symver_asm_label symver_gnu_asm"
2050 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2051 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2052 atomics_win32_if="MemoryBarrier"
2053 atomics_native_if_any="$ATOMICS_LIST"
2054 w32threads_deps="atomics_native"
2055 threads_if_any="$THREADS_LIST"
2059 error_resilience_select="me_cmp"
2060 faandct_deps="faan fdctdsp"
2061 faanidct_deps="faan idctdsp"
2062 frame_thread_encoder_deps="encoders threads"
2063 intrax8_select="error_resilience"
2066 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2067 mpeg_er_select="error_resilience"
2068 mpegaudio_select="mpegaudiodsp"
2069 mpegaudiodsp_select="dct"
2070 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2071 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2073 # decoders / encoders
2074 aac_decoder_select="imdct15 mdct sinewin"
2075 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2076 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2077 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2078 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2079 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2080 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2081 aic_decoder_select="golomb idctdsp"
2082 alac_encoder_select="lpc"
2083 als_decoder_select="bswapdsp"
2084 amrnb_decoder_select="lsp"
2085 amrwb_decoder_select="lsp"
2086 amv_decoder_select="sp5x_decoder exif"
2087 amv_encoder_select="aandcttables mpegvideoenc"
2088 ape_decoder_select="bswapdsp llauddsp"
2089 apng_decoder_select="zlib"
2090 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2091 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2092 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2093 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2094 atrac1_decoder_select="mdct sinewin"
2095 atrac3_decoder_select="mdct"
2096 atrac3p_decoder_select="mdct sinewin"
2097 avrn_decoder_select="exif"
2098 bink_decoder_select="blockdsp hpeldsp"
2099 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2100 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2101 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2102 cllc_decoder_select="bswapdsp"
2103 comfortnoise_encoder_select="lpc"
2104 cook_decoder_select="audiodsp mdct sinewin"
2105 cscd_decoder_select="lzo"
2106 cscd_decoder_suggest="zlib"
2107 dca_decoder_select="mdct"
2108 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2109 dnxhd_decoder_select="blockdsp idctdsp"
2110 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2111 dvvideo_decoder_select="dvprofile idctdsp"
2112 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2113 dxa_decoder_select="zlib"
2114 eac3_decoder_select="ac3_decoder"
2115 eac3_encoder_select="ac3_encoder"
2116 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2117 eatgq_decoder_select="aandcttables"
2118 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2119 exr_decoder_select="zlib"
2120 ffv1_decoder_select="golomb rangecoder"
2121 ffv1_encoder_select="rangecoder"
2122 ffvhuff_decoder_select="huffyuv_decoder"
2123 ffvhuff_encoder_select="huffyuv_encoder"
2124 fic_decoder_select="golomb"
2125 flac_decoder_select="golomb"
2126 flac_encoder_select="bswapdsp golomb lpc"
2127 flashsv_decoder_select="zlib"
2128 flashsv_encoder_select="zlib"
2129 flashsv2_encoder_select="zlib"
2130 flashsv2_decoder_select="zlib"
2131 flv_decoder_select="h263_decoder"
2132 flv_encoder_select="h263_encoder"
2133 fourxm_decoder_select="blockdsp bswapdsp"
2134 fraps_decoder_select="bswapdsp huffman"
2135 g2m_decoder_select="blockdsp idctdsp zlib"
2136 g729_decoder_select="audiodsp"
2137 h261_decoder_select="mpeg_er mpegvideo"
2138 h261_encoder_select="aandcttables mpegvideoenc"
2139 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2140 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2141 h263i_decoder_select="h263_decoder"
2142 h263p_encoder_select="h263_encoder"
2143 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2144 h264_decoder_suggest="error_resilience"
2145 h264_qsv_decoder_deps="libmfx"
2146 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsv h264_qsv_hwaccel"
2147 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2148 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2149 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2150 iac_decoder_select="imc_decoder"
2151 imc_decoder_select="bswapdsp fft mdct sinewin"
2152 indeo3_decoder_select="hpeldsp"
2153 interplay_video_decoder_select="hpeldsp"
2154 jpegls_decoder_select="golomb mjpeg_decoder"
2155 jpegls_encoder_select="golomb"
2156 jv_decoder_select="blockdsp"
2157 lagarith_decoder_select="huffyuvdsp"
2158 ljpeg_encoder_select="aandcttables idctdsp"
2159 loco_decoder_select="golomb"
2160 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2161 metasound_decoder_select="lsp mdct sinewin"
2162 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2163 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2164 mjpeg_encoder_select="aandcttables mpegvideoenc"
2165 mjpegb_decoder_select="mjpeg_decoder"
2166 mlp_decoder_select="mlp_parser"
2167 motionpixels_decoder_select="bswapdsp"
2168 mp1_decoder_select="mpegaudio"
2169 mp1float_decoder_select="mpegaudio"
2170 mp2_decoder_select="mpegaudio"
2171 mp2float_decoder_select="mpegaudio"
2172 mp3_decoder_select="mpegaudio"
2173 mp3adu_decoder_select="mpegaudio"
2174 mp3adufloat_decoder_select="mpegaudio"
2175 mp3float_decoder_select="mpegaudio"
2176 mp3on4_decoder_select="mpegaudio"
2177 mp3on4float_decoder_select="mpegaudio"
2178 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2179 mpc8_decoder_select="mpegaudiodsp"
2180 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2181 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2182 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2183 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2184 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2185 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2186 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2187 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2188 mpeg4_encoder_select="h263_encoder"
2189 msmpeg4v1_decoder_select="h263_decoder"
2190 msmpeg4v2_decoder_select="h263_decoder"
2191 msmpeg4v2_encoder_select="h263_encoder"
2192 msmpeg4v3_decoder_select="h263_decoder"
2193 msmpeg4v3_encoder_select="h263_encoder"
2194 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2195 mxpeg_decoder_select="mjpeg_decoder"
2196 nellymoser_decoder_select="mdct sinewin"
2197 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2198 nuv_decoder_select="idctdsp lzo"
2199 on2avc_decoder_select="mdct"
2200 opus_decoder_deps="swresample"
2201 opus_decoder_select="imdct15"
2202 png_decoder_select="zlib"
2203 png_encoder_select="huffyuvencdsp zlib"
2204 prores_decoder_select="blockdsp idctdsp"
2205 prores_encoder_select="fdctdsp"
2206 qcelp_decoder_select="lsp"
2207 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2208 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2209 ra_144_decoder_select="audiodsp"
2210 ralf_decoder_select="golomb"
2211 rawvideo_decoder_select="bswapdsp"
2212 rtjpeg_decoder_select="me_cmp"
2213 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2214 rv10_encoder_select="h263_encoder"
2215 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2216 rv20_encoder_select="h263_encoder"
2217 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2218 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2219 shorten_decoder_select="golomb"
2220 sipr_decoder_select="lsp"
2221 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2222 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2223 sonic_decoder_select="golomb rangecoder"
2224 sonic_encoder_select="golomb rangecoder"
2225 sonic_ls_encoder_select="golomb rangecoder"
2226 sp5x_decoder_select="mjpeg_decoder"
2227 svq1_decoder_select="hpeldsp"
2228 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2229 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2230 svq3_decoder_suggest="zlib"
2231 tak_decoder_select="audiodsp"
2232 theora_decoder_select="vp3_decoder"
2233 thp_decoder_select="mjpeg_decoder"
2234 tiff_decoder_suggest="zlib lzma"
2235 tiff_encoder_suggest="zlib"
2236 truehd_decoder_select="mlp_parser"
2237 truemotion2_decoder_select="bswapdsp"
2238 truespeech_decoder_select="bswapdsp"
2239 tscc_decoder_select="zlib"
2240 twinvq_decoder_select="mdct lsp sinewin"
2241 utvideo_decoder_select="bswapdsp"
2242 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2243 vble_decoder_select="huffyuvdsp"
2244 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2245 vc1image_decoder_select="vc1_decoder"
2246 vorbis_decoder_select="mdct"
2247 vorbis_encoder_select="mdct"
2248 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2249 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2250 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2251 vp6a_decoder_select="vp6_decoder"
2252 vp6f_decoder_select="vp6_decoder"
2253 vp7_decoder_select="h264pred videodsp"
2254 vp8_decoder_select="h264pred videodsp"
2255 vp9_decoder_select="videodsp vp9_parser"
2256 webp_decoder_select="vp8_decoder"
2257 wmalossless_decoder_select="llauddsp"
2258 wmapro_decoder_select="mdct sinewin wma_freqs"
2259 wmav1_decoder_select="mdct sinewin wma_freqs"
2260 wmav1_encoder_select="mdct sinewin wma_freqs"
2261 wmav2_decoder_select="mdct sinewin wma_freqs"
2262 wmav2_encoder_select="mdct sinewin wma_freqs"
2263 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2264 wmv1_decoder_select="h263_decoder"
2265 wmv1_encoder_select="h263_encoder"
2266 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2267 wmv2_encoder_select="h263_encoder"
2268 wmv3_decoder_select="vc1_decoder"
2269 wmv3image_decoder_select="wmv3_decoder"
2270 zerocodec_decoder_select="zlib"
2271 zlib_decoder_select="zlib"
2272 zlib_encoder_select="zlib"
2273 zmbv_decoder_select="zlib"
2274 zmbv_encoder_select="zlib"
2276 # hardware accelerators
2277 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2278 dxva2_deps="dxva2api_h"
2279 vaapi_deps="va_va_h"
2280 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2281 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2282 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2283 xvmc_deps="X11_extensions_XvMClib_h"
2285 h263_vaapi_hwaccel_deps="vaapi"
2286 h263_vaapi_hwaccel_select="h263_decoder"
2287 h263_vdpau_hwaccel_deps="vdpau"
2288 h263_vdpau_hwaccel_select="h263_decoder"
2289 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2290 h264_dxva2_hwaccel_deps="dxva2"
2291 h264_dxva2_hwaccel_select="h264_decoder"
2292 h264_qsv_hwaccel_deps="libmfx"
2293 h264_vaapi_hwaccel_deps="vaapi"
2294 h264_vaapi_hwaccel_select="h264_decoder"
2295 h264_vda_decoder_deps="vda"
2296 h264_vda_decoder_select="h264_decoder"
2297 h264_vda_hwaccel_deps="vda"
2298 h264_vda_hwaccel_select="h264_decoder"
2299 h264_vda_old_hwaccel_deps="vda"
2300 h264_vda_old_hwaccel_select="h264_decoder"
2301 h264_vdpau_decoder_deps="vdpau"
2302 h264_vdpau_decoder_select="h264_decoder"
2303 h264_vdpau_hwaccel_deps="vdpau"
2304 h264_vdpau_hwaccel_select="h264_decoder"
2305 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2306 hevc_dxva2_hwaccel_select="hevc_decoder"
2307 mpeg_vdpau_decoder_deps="vdpau"
2308 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2309 mpeg_xvmc_hwaccel_deps="xvmc"
2310 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2311 mpeg1_vdpau_decoder_deps="vdpau"
2312 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2313 mpeg1_vdpau_hwaccel_deps="vdpau"
2314 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2315 mpeg1_xvmc_hwaccel_deps="xvmc"
2316 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2317 mpeg2_crystalhd_decoder_select="crystalhd"
2318 mpeg2_dxva2_hwaccel_deps="dxva2"
2319 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2320 mpeg2_vaapi_hwaccel_deps="vaapi"
2321 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2322 mpeg2_vdpau_hwaccel_deps="vdpau"
2323 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2324 mpeg2_xvmc_hwaccel_deps="xvmc"
2325 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2326 mpeg4_crystalhd_decoder_select="crystalhd"
2327 mpeg4_vaapi_hwaccel_deps="vaapi"
2328 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2329 mpeg4_vdpau_decoder_deps="vdpau"
2330 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2331 mpeg4_vdpau_hwaccel_deps="vdpau"
2332 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2333 msmpeg4_crystalhd_decoder_select="crystalhd"
2334 vc1_crystalhd_decoder_select="crystalhd"
2335 vc1_dxva2_hwaccel_deps="dxva2"
2336 vc1_dxva2_hwaccel_select="vc1_decoder"
2337 vc1_vaapi_hwaccel_deps="vaapi"
2338 vc1_vaapi_hwaccel_select="vc1_decoder"
2339 vc1_vdpau_decoder_deps="vdpau"
2340 vc1_vdpau_decoder_select="vc1_decoder"
2341 vc1_vdpau_hwaccel_deps="vdpau"
2342 vc1_vdpau_hwaccel_select="vc1_decoder"
2343 wmv3_crystalhd_decoder_select="crystalhd"
2344 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2345 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2346 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2347 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2350 h264_parser_select="h264_decoder"
2351 hevc_parser_select="hevc_decoder"
2352 mpegvideo_parser_select="mpegvideo"
2353 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2354 vc1_parser_select="mpegvideo startcode vc1_decoder"
2356 # external libraries
2357 libaacplus_encoder_deps="libaacplus"
2358 libcelt_decoder_deps="libcelt"
2359 libfaac_encoder_deps="libfaac"
2360 libfaac_encoder_select="audio_frame_queue"
2361 libfdk_aac_decoder_deps="libfdk_aac"
2362 libfdk_aac_encoder_deps="libfdk_aac"
2363 libfdk_aac_encoder_select="audio_frame_queue"
2364 libgme_demuxer_deps="libgme"
2365 libgsm_decoder_deps="libgsm"
2366 libgsm_encoder_deps="libgsm"
2367 libgsm_ms_decoder_deps="libgsm"
2368 libgsm_ms_encoder_deps="libgsm"
2369 libilbc_decoder_deps="libilbc"
2370 libilbc_encoder_deps="libilbc"
2371 libmodplug_demuxer_deps="libmodplug"
2372 libmp3lame_encoder_deps="libmp3lame"
2373 libmp3lame_encoder_select="audio_frame_queue"
2374 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2375 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2376 libopencore_amrnb_encoder_select="audio_frame_queue"
2377 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2378 libopenh264_encoder_deps="libopenh264"
2379 libopenjpeg_decoder_deps="libopenjpeg"
2380 libopenjpeg_encoder_deps="libopenjpeg"
2381 libopus_decoder_deps="libopus"
2382 libopus_encoder_deps="libopus"
2383 libopus_encoder_select="audio_frame_queue"
2384 libquvi_demuxer_deps="libquvi"
2385 libschroedinger_decoder_deps="libschroedinger"
2386 libschroedinger_encoder_deps="libschroedinger"
2387 libshine_encoder_deps="libshine"
2388 libshine_encoder_select="audio_frame_queue"
2389 libspeex_decoder_deps="libspeex"
2390 libspeex_encoder_deps="libspeex"
2391 libspeex_encoder_select="audio_frame_queue"
2392 libstagefright_h264_decoder_deps="libstagefright_h264"
2393 libtheora_encoder_deps="libtheora"
2394 libtwolame_encoder_deps="libtwolame"
2395 libvo_aacenc_encoder_deps="libvo_aacenc"
2396 libvo_aacenc_encoder_select="audio_frame_queue"
2397 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2398 libvorbis_decoder_deps="libvorbis"
2399 libvorbis_encoder_deps="libvorbis"
2400 libvorbis_encoder_select="audio_frame_queue"
2401 libvpx_vp8_decoder_deps="libvpx"
2402 libvpx_vp8_encoder_deps="libvpx"
2403 libvpx_vp9_decoder_deps="libvpx"
2404 libvpx_vp9_encoder_deps="libvpx"
2405 libwavpack_encoder_deps="libwavpack"
2406 libwebp_encoder_deps="libwebp"
2407 libx264_encoder_deps="libx264"
2408 libx264rgb_encoder_deps="libx264"
2409 libx264rgb_encoder_select="libx264_encoder"
2410 libx265_encoder_deps="libx265"
2411 libxavs_encoder_deps="libxavs"
2412 libxvid_encoder_deps="libxvid"
2413 libutvideo_decoder_deps="libutvideo"
2414 libutvideo_encoder_deps="libutvideo"
2415 libzvbi_teletext_decoder_deps="libzvbi"
2416 nvenc_encoder_deps="nvenc"
2419 ac3_demuxer_select="ac3_parser"
2420 asf_demuxer_select="riffdec"
2421 asf_muxer_select="riffenc"
2422 asf_stream_muxer_select="asf_muxer"
2423 avi_demuxer_select="riffdec exif"
2424 avi_muxer_select="riffenc"
2425 avisynth_demuxer_deps="avisynth"
2426 avisynth_demuxer_select="riffdec"
2427 caf_demuxer_select="riffdec"
2428 dash_muxer_select="mp4_muxer"
2429 dirac_demuxer_select="dirac_parser"
2430 dts_demuxer_select="dca_parser"
2431 dtshd_demuxer_select="dca_parser"
2432 dv_demuxer_select="dvprofile"
2433 dv_muxer_select="dvprofile"
2434 dxa_demuxer_select="riffdec"
2435 eac3_demuxer_select="ac3_parser"
2436 f4v_muxer_select="mov_muxer"
2437 flac_demuxer_select="flac_parser"
2438 hds_muxer_select="flv_muxer"
2439 hls_muxer_select="mpegts_muxer"
2440 image2_alias_pix_demuxer_select="image2_demuxer"
2441 image2_brender_pix_demuxer_select="image2_demuxer"
2442 ipod_muxer_select="mov_muxer"
2443 ismv_muxer_select="mov_muxer"
2444 libnut_demuxer_deps="libnut"
2445 libnut_muxer_deps="libnut"
2446 matroska_audio_muxer_select="matroska_muxer"
2447 matroska_demuxer_select="riffdec"
2448 matroska_demuxer_suggest="bzlib lzo zlib"
2449 matroska_muxer_select="riffenc"
2450 mmf_muxer_select="riffenc"
2451 mov_demuxer_select="riffdec"
2452 mov_demuxer_suggest="zlib"
2453 mov_muxer_select="riffenc rtpenc_chain"
2454 mp3_demuxer_select="mpegaudio_parser"
2455 mp4_muxer_select="mov_muxer"
2456 mpegts_muxer_select="adts_muxer latm_muxer"
2457 mpegtsraw_demuxer_select="mpegts_demuxer"
2458 mxf_d10_muxer_select="mxf_muxer"
2459 mxf_opatom_muxer_select="mxf_muxer"
2460 nut_muxer_select="riffenc"
2461 nuv_demuxer_select="riffdec"
2462 oga_muxer_select="ogg_muxer"
2463 ogg_demuxer_select="golomb"
2464 opus_muxer_select="ogg_muxer"
2465 psp_muxer_select="mov_muxer"
2466 rtp_demuxer_select="sdp_demuxer"
2467 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2468 rtsp_demuxer_select="http_protocol rtpdec"
2469 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2470 sap_demuxer_select="sdp_demuxer"
2471 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2472 sdp_demuxer_select="rtpdec"
2473 smoothstreaming_muxer_select="ismv_muxer"
2474 spdif_muxer_select="aac_parser"
2475 spx_muxer_select="ogg_muxer"
2476 tak_demuxer_select="tak_parser"
2477 tg2_muxer_select="mov_muxer"
2478 tgp_muxer_select="mov_muxer"
2479 vobsub_demuxer_select="mpegps_demuxer"
2480 w64_demuxer_select="wav_demuxer"
2481 w64_muxer_select="wav_muxer"
2482 wav_demuxer_select="riffdec"
2483 wav_muxer_select="riffenc"
2484 webm_muxer_select="riffenc"
2485 wtv_demuxer_select="riffdec"
2486 wtv_muxer_select="riffenc"
2487 xmv_demuxer_select="riffdec"
2488 xwma_demuxer_select="riffdec"
2491 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2492 alsa_outdev_deps="alsa_asoundlib_h"
2493 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia -framework CoreGraphics"
2494 avfoundation_indev_select="avfoundation"
2495 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2496 caca_outdev_deps="libcaca"
2497 decklink_outdev_deps="decklink pthreads"
2498 decklink_outdev_extralibs="-lstdc++"
2499 decklink_indev_deps="decklink pthreads"
2500 decklink_indev_extralibs="-lstdc++"
2501 dshow_indev_deps="IBaseFilter"
2502 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32"
2503 dv1394_indev_deps="dv1394"
2504 dv1394_indev_select="dv_demuxer"
2505 fbdev_indev_deps="linux_fb_h"
2506 fbdev_outdev_deps="linux_fb_h"
2507 gdigrab_indev_deps="CreateDIBSection"
2508 gdigrab_indev_extralibs="-lgdi32"
2509 gdigrab_indev_select="bmp_decoder"
2510 iec61883_indev_deps="libiec61883"
2511 jack_indev_deps="jack_jack_h sem_timedwait"
2512 lavfi_indev_deps="avfilter"
2513 libcdio_indev_deps="libcdio"
2514 libdc1394_indev_deps="libdc1394"
2515 libv4l2_indev_deps="libv4l2"
2516 openal_indev_deps="openal"
2517 opengl_outdev_deps="opengl"
2518 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2519 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2520 pulse_indev_deps="libpulse"
2521 pulse_outdev_deps="libpulse"
2522 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2523 qtkit_indev_select="qtkit"
2524 sdl_outdev_deps="sdl"
2525 sndio_indev_deps="sndio_h"
2526 sndio_outdev_deps="sndio_h"
2527 v4l_indev_deps="linux_videodev_h"
2528 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2529 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2530 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2531 vfwcap_indev_extralibs="-lavicap32"
2532 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2533 xv_outdev_extralibs="-lXv -lX11 -lXext"
2534 x11grab_indev_deps="x11grab"
2535 x11grab_xcb_indev_deps="libxcb"
2538 bluray_protocol_deps="libbluray"
2539 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2540 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2541 ffrtmpcrypt_protocol_select="tcp_protocol"
2542 ffrtmphttp_protocol_deps="!librtmp_protocol"
2543 ffrtmphttp_protocol_select="http_protocol"
2544 ftp_protocol_select="tcp_protocol"
2545 gopher_protocol_select="network"
2546 http_protocol_select="tcp_protocol"
2547 httpproxy_protocol_select="tcp_protocol"
2548 https_protocol_select="tls_protocol"
2549 icecast_protocol_select="http_protocol"
2550 librtmp_protocol_deps="librtmp"
2551 librtmpe_protocol_deps="librtmp"
2552 librtmps_protocol_deps="librtmp"
2553 librtmpt_protocol_deps="librtmp"
2554 librtmpte_protocol_deps="librtmp"
2555 libsmbclient_protocol_deps="libsmbclient gplv3"
2556 libssh_protocol_deps="libssh"
2557 mmsh_protocol_select="http_protocol"
2558 mmst_protocol_select="network"
2559 rtmp_protocol_deps="!librtmp_protocol"
2560 rtmp_protocol_select="tcp_protocol"
2561 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2562 rtmps_protocol_deps="!librtmp_protocol"
2563 rtmps_protocol_select="tls_protocol"
2564 rtmpt_protocol_select="ffrtmphttp_protocol"
2565 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2566 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2567 rtp_protocol_select="udp_protocol"
2568 sctp_protocol_deps="struct_sctp_event_subscribe"
2569 sctp_protocol_select="network"
2570 srtp_protocol_select="rtp_protocol"
2571 tcp_protocol_select="network"
2572 tls_protocol_deps_any="openssl gnutls"
2573 tls_protocol_select="tcp_protocol"
2574 udp_protocol_select="network"
2575 udplite_protocol_select="network"
2576 unix_protocol_deps="sys_un_h"
2577 unix_protocol_select="network"
2580 amovie_filter_deps="avcodec avformat"
2581 aresample_filter_deps="swresample"
2582 ass_filter_deps="libass"
2583 asyncts_filter_deps="avresample"
2584 atempo_filter_deps="avcodec"
2585 atempo_filter_select="rdft"
2586 azmq_filter_deps="libzmq"
2587 blackframe_filter_deps="gpl"
2588 boxblur_filter_deps="gpl"
2589 bs2b_filter_deps="libbs2b"
2590 colormatrix_filter_deps="gpl"
2591 cropdetect_filter_deps="gpl"
2592 delogo_filter_deps="gpl"
2593 deshake_filter_select="pixelutils"
2594 drawtext_filter_deps="libfreetype"
2595 ebur128_filter_deps="gpl"
2596 eq_filter_deps="gpl"
2597 flite_filter_deps="libflite"
2598 frei0r_filter_deps="frei0r dlopen"
2599 frei0r_src_filter_deps="frei0r dlopen"
2600 fspp_filter_deps="gpl"
2601 geq_filter_deps="gpl"
2602 histeq_filter_deps="gpl"
2603 hqdn3d_filter_deps="gpl"
2604 interlace_filter_deps="gpl"
2605 kerndeint_filter_deps="gpl"
2606 ladspa_filter_deps="ladspa dlopen"
2607 mcdeint_filter_deps="avcodec gpl"
2608 movie_filter_deps="avcodec avformat"
2609 mpdecimate_filter_deps="gpl"
2610 mpdecimate_filter_select="pixelutils"
2611 mptestsrc_filter_deps="gpl"
2612 negate_filter_deps="lut_filter"
2613 perspective_filter_deps="gpl"
2614 pp7_filter_deps="gpl"
2615 ocv_filter_deps="libopencv"
2616 owdenoise_filter_deps="gpl"
2617 pan_filter_deps="swresample"
2618 phase_filter_deps="gpl"
2619 pp_filter_deps="gpl postproc"
2620 pullup_filter_deps="gpl"
2621 removelogo_filter_deps="avcodec avformat swscale"
2622 repeatfields_filter_deps="gpl"
2623 resample_filter_deps="avresample"
2624 sab_filter_deps="gpl swscale"
2625 scale_filter_deps="swscale"
2626 select_filter_select="pixelutils"
2627 smartblur_filter_deps="gpl swscale"
2628 showspectrum_filter_deps="avcodec"
2629 showspectrum_filter_select="rdft"
2630 spp_filter_deps="gpl avcodec"
2631 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2632 stereo3d_filter_deps="gpl"
2633 subtitles_filter_deps="avformat avcodec libass"
2634 super2xsai_filter_deps="gpl"
2635 tinterlace_filter_deps="gpl"
2636 vidstabdetect_filter_deps="libvidstab"
2637 vidstabtransform_filter_deps="libvidstab"
2638 pixfmts_super2xsai_test_deps="super2xsai_filter"
2639 tinterlace_merge_test_deps="tinterlace_filter"
2640 tinterlace_pad_test_deps="tinterlace_filter"
2641 uspp_filter_deps="gpl avcodec"
2642 zmq_filter_deps="libzmq"
2643 zoompan_filter_deps="swscale"
2646 avio_reading="avformat avcodec avutil"
2647 avcodec_example_deps="avcodec avutil"
2648 decoding_encoding_example_deps="avcodec avformat avutil"
2649 demuxing_decoding_example_deps="avcodec avformat avutil"
2650 extract_mvs_example_deps="avcodec avformat avutil"
2651 filter_audio_example_deps="avfilter avutil"
2652 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2653 filtering_video_example_deps="avfilter avcodec avformat avutil"
2654 metadata_example_deps="avformat avutil"
2655 muxing_example_deps="avcodec avformat avutil swscale"
2656 remuxing_example_deps="avcodec avformat avutil"
2657 resampling_audio_example_deps="avutil swresample"
2658 scaling_video_example_deps="avutil swscale"
2659 transcode_aac_example_deps="avcodec avformat swresample"
2660 transcoding_example_deps="avfilter avcodec avformat avutil"
2662 # libraries, in linking order
2663 avcodec_deps="avutil"
2664 avdevice_deps="avformat avcodec avutil"
2665 avfilter_deps="avutil"
2666 avformat_deps="avcodec avutil"
2667 avresample_deps="avutil"
2668 postproc_deps="avutil gpl"
2669 swresample_deps="avutil"
2670 swscale_deps="avutil"
2673 ffmpeg_deps="avcodec avfilter avformat swresample"
2674 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2676 setpts_filter trim_filter"
2677 ffplay_deps="avcodec avformat swscale swresample sdl"
2678 ffplay_libs='$sdl_libs'
2679 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2680 ffprobe_deps="avcodec avformat"
2681 ffserver_deps="avformat fork sarestart"
2682 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2685 podpages_deps="perl"
2686 manpages_deps="perl pod2man"
2687 htmlpages_deps="perl"
2688 htmlpages_deps_any="makeinfo_html texi2html"
2689 txtpages_deps="perl makeinfo"
2690 doc_deps_any="manpages htmlpages podpages txtpages"
2692 # default parameters
2694 logfile="config.log"
2696 # installation paths
2697 prefix_default="/usr/local"
2698 bindir_default='${prefix}/bin'
2699 datadir_default='${prefix}/share/ffmpeg'
2700 docdir_default='${prefix}/share/doc/ffmpeg'
2701 incdir_default='${prefix}/include'
2702 libdir_default='${prefix}/lib'
2703 mandir_default='${prefix}/share/man'
2709 host_cc_default="gcc"
2711 doxygen_default="doxygen"
2716 pkg_config_default=pkg-config
2717 if ranlib 2>&1 | grep -q "\-D "; then
2718 ranlib_default="ranlib -D"
2720 ranlib_default="ranlib"
2722 strip_default="strip"
2723 yasmexe_default="yasm"
2724 windres_default="windres"
2727 target_os_default=$(tolower $(uname -s))
2728 host_os=$target_os_default
2731 if test "$target_os_default" = aix; then
2732 arch_default=$(uname -p)
2733 strip_default="strip -X32_64"
2735 arch_default=$(uname -m)
2740 # configurable options
2741 enable $PROGRAM_LIST
2742 enable $DOCUMENT_LIST
2743 enable $EXAMPLE_LIST
2744 enable $(filter_out avresample $LIBRARY_LIST)
2750 enable faan faandct faanidct
2751 enable optimizations
2752 enable runtime_cpudetect
2753 enable safe_bitstream_reader
2755 enable swscale_alpha
2757 sws_max_filter_size_default=256
2758 set_default sws_max_filter_size
2760 # Enable hwaccels by default.
2761 enable dxva2 vaapi vda vdpau xvmc
2765 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2768 FULLNAME='$(NAME)$(BUILDSUF)'
2769 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2772 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2773 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2774 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2775 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2776 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2777 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2799 host_cflags_filter=echo
2800 host_ldflags_filter=echo
2802 target_path='$(CURDIR)'
2804 # since the object filename is not given with the -MM flag, the compiler
2805 # is only able to print the basename, and we must add the path ourselves
2806 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2810 if test -f configure; then
2813 source_path=$(cd $(dirname "$0"); pwd)
2814 echo "$source_path" | grep -q '[[:blank:]]' &&
2815 die "Out of tree builds are impossible with whitespace in source path."
2816 test -e "$source_path/config.h" &&
2817 die "Out of tree builds are impossible with config.h in source dir."
2824 FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2830 file=$source_path/$3
2831 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2834 ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
2835 DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
2836 HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
2837 PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
2838 BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
2839 MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
2840 DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
2841 OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
2842 INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
2843 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2844 FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
2860 for n in $COMPONENT_LIST; do
2861 v=$(toupper ${n%s})_LIST
2863 eval ${n}_if_any="\$$v"
2866 enable $ARCH_EXT_LIST
2869 echo "Unknown option \"$1\"."
2870 echo "See $0 --help for available options."
2875 cat | tr ' ' '\n' | sort | pr -r -3 -t
2881 echo $* | sed s/$suffix//g | print_3_columns
2893 is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2894 echo "prob ${prob:-0.5}"
2902 random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2903 $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2912 --extra-ldexeflags=*)
2913 add_ldexeflags $optval
2916 add_extralibs $optval
2919 disable $INDEV_LIST $OUTDEV_LIST
2922 debuglevel="$optval"
2925 disable $PROGRAM_LIST
2927 --disable-everything)
2928 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2931 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2932 disable $LIBRARY_LIST $PROGRAM_LIST doc
2934 --enable-random|--disable-random)
2935 action=${opt%%-random}
2936 do_random ${action#--} $COMPONENT_LIST
2938 --enable-random=*|--disable-random=*)
2939 action=${opt%%-random=*}
2940 do_random ${action#--} $optval
2942 --enable-*=*|--disable-*=*)
2943 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2944 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2945 eval list=\$$(toupper $thing)_LIST
2946 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2947 list=$(filter "$name" $list)
2948 [ "$list" = "" ] && warn "Option $opt did not match anything"
2951 --enable-?*|--disable-?*)
2952 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2953 if is_in $option $COMPONENT_LIST; then
2954 test $action = disable && action=unset
2955 eval $action \$$(toupper ${option%s})_LIST
2956 elif is_in $option $CMDLINE_SELECT; then
2963 NAME="${opt#--list-}"
2964 is_in $NAME $COMPONENT_LIST || die_unknown $opt
2966 eval show_list $NAME \$$(toupper $NAME)_LIST
2968 --help|-h) show_help
2970 --fatal-warnings) enable fatal_warnings
2973 optname="${opt%%=*}"
2974 optname="${optname#--}"
2975 optname=$(echo "$optname" | sed 's/-/_/g')
2976 if is_in $optname $CMDLINE_SET; then
2977 eval $optname='$optval'
2978 elif is_in $optname $CMDLINE_APPEND; then
2979 append $optname "$optval"
2987 disabled logging && logfile=/dev/null
2989 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2992 test -n "$cross_prefix" && enable cross_compile
2994 if enabled cross_compile; then
2995 test -n "$arch" && test -n "$target_os" ||
2996 die "Must specify target arch and OS when cross-compiling"
2999 ar_default="${cross_prefix}${ar_default}"
3000 cc_default="${cross_prefix}${cc_default}"
3001 cxx_default="${cross_prefix}${cxx_default}"
3002 nm_default="${cross_prefix}${nm_default}"
3003 pkg_config_default="${cross_prefix}${pkg_config_default}"
3004 ranlib_default="${cross_prefix}${ranlib_default}"
3005 strip_default="${cross_prefix}${strip_default}"
3006 windres_default="${cross_prefix}${windres_default}"
3008 sysinclude_default="${sysroot}/usr/include"
3010 test -n "$valgrind" && toolchain="valgrind-memcheck"
3012 case "$toolchain" in
3015 add_cflags -fsanitize=address
3016 add_ldflags -fsanitize=address
3020 add_cflags -fsanitize=thread -pie
3021 add_ldflags -fsanitize=thread -pie
3025 add_cflags -fsanitize=undefined
3026 add_ldflags -fsanitize=undefined
3030 add_cflags -fsanitize=address
3031 add_ldflags -fsanitize=address
3035 add_cflags -fsanitize=thread -pie -fPIC
3036 add_ldflags -fsanitize=thread -pie -fPIC
3040 add_cflags -fsanitize=undefined
3041 add_ldflags -fsanitize=undefined
3044 target_exec_default=${valgrind:-"valgrind"}
3045 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"
3048 target_exec_default=${valgrind:-"valgrind"}
3049 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3052 # Check whether the current MSVC version needs the C99 converter.
3053 # From MSVC 2013 (compiler major version 18) onwards, it does actually
3054 # support enough of C99 to build ffmpeg. Default to the new
3055 # behaviour if the regexp was unable to match anything, since this
3056 # successfully parses the version number of existing supported
3057 # versions that require the converter (MSVC 2010 and 2012).
3058 cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3059 if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3062 cc_default="c99wrap cl"
3065 nm_default="dumpbin -symbols"
3067 target_os_default="win32"
3068 # Use a relative path for TMPDIR. This makes sure all the
3069 # ffconf temp files are written with a relative path, avoiding
3070 # issues with msys/win32 path conversion for MSVC parameters
3071 # such as -Fo<file> or -out:<file>.
3077 nm_default="dumpbin -symbols"
3079 target_os_default="win32"
3083 add_cflags -fprofile-arcs -ftest-coverage
3084 add_ldflags -fprofile-arcs -ftest-coverage
3087 add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3088 add_cflags -fno-strict-overflow -fstack-protector-all
3089 add_ldflags -Wl,-z,relro -Wl,-z,now
3092 die "Unknown toolchain $toolchain"
3096 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3097 target_exec target_os yasmexe
3098 enabled cross_compile || host_cc_default=$cc
3101 pkg_config_fail_message=""
3102 if ! $pkg_config --version >/dev/null 2>&1; then
3103 warn "$pkg_config not found, library detection may fail."
3105 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3106 pkg_config_fail_message="
3107 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3110 if test $doxygen != $doxygen_default && \
3111 ! $doxygen --version >/dev/null 2>&1; then
3112 warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3117 mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3121 EXESUF=$(exesuf $target_os)
3122 HOSTEXESUF=$(exesuf $host_os)
3124 # set temporary file name
3125 : ${TMPDIR:=$TEMPDIR}
3129 if [ -n "$tempprefix" ] ; then
3131 echo $tempprefix.${HOSTNAME}.${UID}
3133 elif ! check_cmd mktemp -u XXXXXX; then
3134 # simple replacement for missing mktemp
3135 # NOT SAFE FOR GENERAL USE
3137 echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3142 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3143 (set -C; exec > $tmp) 2>/dev/null ||
3144 die "Unable to create temporary file in $TMPDIR."
3145 append TMPFILES $tmp
3149 trap 'rm -f -- $TMPFILES' EXIT
3154 tmpfile TMPE $EXESUF
3166 # make sure we can execute files in $TMPDIR
3167 cat > $TMPSH 2>> $logfile <<EOF
3170 chmod +x $TMPSH >> $logfile 2>&1
3171 if ! $TMPSH >> $logfile 2>&1; then
3173 Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
3174 variable to another directory and make sure that it is not mounted noexec.
3176 die "Sanity test failed."
3182 # Filter out MSVC cl.exe options from cflags that shouldn't
3183 # be passed to gas-preprocessor
3193 -std=c99) echo -c99 ;;
3194 -mcpu=*) echo -arch ${flag#*=} ;;
3195 -mieee) echo -ieee ;;
3196 -O*|-fast) echo $flag ;;
3197 -fno-math-errno) echo -assume nomath_errno ;;
3199 -Wall) echo -msg_enable level2 ;;
3200 -Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
3201 -Wl,*) echo $flag ;;
3211 -Wno-switch) echo -Wno-switch-enum ;;
3212 -Wno-format-zero-length) ;;
3213 -Wdisabled-optimization) ;;
3214 -Wno-pointer-sign) echo -Wno-other ;;
3220 msvc_common_flags(){
3223 # In addition to specifying certain flags under the compiler
3224 # specific filters, they must be specified here as well or else the
3225 # generic catch all at the bottom will print the original flag.
3229 -fomit-frame-pointer) ;;
3233 -fno-signed-zeros) ;;
3237 -lz) echo zlib.lib ;;
3238 -lavifil32) echo vfw32.lib ;;
3239 -lavicap32) echo vfw32.lib user32.lib ;;
3240 -l*) echo ${flag#-l}.lib ;;
3241 -L*) echo -libpath:${flag#-L} ;;
3248 msvc_common_flags "$@"
3251 -Wall) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
3252 -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3253 -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3261 msvc_common_flags "$@"
3264 # Despite what Intel's documentation says -Wall, which is supported
3265 # on Windows, does enable remarks so disable them here.
3266 -Wall) echo $flag -Qdiag-disable:remark ;;
3267 -std=c99) echo -Qstd=c99 ;;
3285 -flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
3286 -fomit-frame-pointer) echo -Mnoframe ;;
3297 case "${flag#*=}" in
3298 native) echo -xtarget=native ;;
3299 v9|niagara) echo -xarch=sparc ;;
3300 ultrasparc) echo -xarch=sparcvis ;;
3301 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
3302 i586|pentium) echo -xchip=pentium ;;
3303 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
3304 pentium3*|c3-2) echo -xtarget=pentium3 ;;
3305 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
3306 pentium4*) echo -xtarget=pentium4 ;;
3307 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
3308 *-sse3) echo -xarch=sse3 ;;
3309 core2) echo -xarch=ssse3 -xchip=core2 ;;
3310 bonnell) echo -xarch=ssse3 ;;
3311 corei7|nehalem) echo -xtarget=nehalem ;;
3312 westmere) echo -xtarget=westmere ;;
3313 silvermont) echo -xarch=sse4_2 ;;
3314 corei7-avx|sandybridge) echo -xtarget=sandybridge ;;
3315 core-avx*|ivybridge|haswell|broadwell)
3317 amdfam10|barcelona) echo -xtarget=barcelona ;;
3318 btver1) echo -xarch=amdsse4a ;;
3319 btver2|bdver*) echo -xarch=avx ;;
3320 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
3321 k8|opteron|athlon64|athlon-fx)
3322 echo -xarch=sse2a ;;
3323 athlon*) echo -xarch=pentium_proa ;;
3326 -std=c99) echo -xc99 ;;
3327 -fomit-frame-pointer) echo -xregs=frameptr ;;
3328 -fPIC) echo -KPIC -xcode=pic32 ;;
3329 -W*,*) echo $flag ;;
3330 -f*-*|-W*|-mimpure-text) ;;
3341 case "${flag#*=}" in
3342 armv7-a|cortex-a*) echo -mv=7a8 ;;
3343 armv7-r|cortex-r*) echo -mv=7r4 ;;
3344 armv7-m|cortex-m*) echo -mv=7m3 ;;
3345 armv6*|arm11*) echo -mv=6 ;;
3346 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3348 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
3351 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
3352 -mfpu=vfp) echo --float_support=vfpv2 ;;
3353 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
3354 -mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
3355 -msoft-float) echo --float_support=vfplib ;;
3356 -O[0-3]|-mf=*) echo $flag ;;
3358 -pds=*) echo $flag ;;
3359 -D*|-I*) echo $flag ;;
3360 --gcc|--abi=*) echo $flag ;;
3370 unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3371 unset _ld_o _ldflags _ld_lib _ld_path
3372 unset _depflags _DEPCMD _DEPFLAGS
3375 if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3376 true # no-op to avoid reading stdin in following checks
3377 elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3379 gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3380 _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3381 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3384 elif $_cc -v 2>&1 | grep -qi ^gcc; then
3386 gcc_version=$($_cc --version | head -n1)
3387 gcc_basever=$($_cc -dumpversion)
3388 gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3389 gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3390 _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3391 if ! $_cc -dumpversion | grep -q '^2\.'; then
3392 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3396 elif $_cc --version 2>/dev/null | grep -q ^icc; then
3398 _ident=$($_cc --version | head -n1)
3403 _flags_filter=icc_flags
3404 elif $_cc -v 2>&1 | grep -q xlc; then
3406 _ident=$($_cc -qversion 2>/dev/null | head -n1)
3408 _cflags_size='-O5 -qcompact'
3409 elif $_cc -V 2>/dev/null | grep -q Compaq; then
3411 _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3413 _cflags_speed='-fast'
3415 _flags_filter=ccc_flags
3416 elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3417 test -d "$sysroot" || die "No valid sysroot specified."
3419 _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3420 armcc_conf="$PWD/armcc.conf"
3421 $_cc --arm_linux_configure \
3422 --arm_linux_config_file="$armcc_conf" \
3423 --configure_sysroot="$sysroot" \
3424 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3425 die "Error creating armcc configuration file."
3426 $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3427 _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3428 as_default="${cross_prefix}gcc"
3432 elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3434 _ident=$($_cc -version | head -n1 | tr -s ' ')
3435 _flags='--gcc --abi=eabi -me'
3438 _depflags='-ppa -ppd=$(@:.o=.d)'
3439 _cflags_speed='-O3 -mf=5'
3440 _cflags_size='-O3 -mf=2'
3441 _flags_filter=tms470_flags
3442 elif $_cc -v 2>&1 | grep -q clang; then
3444 _ident=$($_cc --version | head -n1)
3445 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3448 elif $_cc -V 2>&1 | grep -q Sun; then
3450 _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3451 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3452 _DEPFLAGS='-xM1 -xc99'
3455 _cflags_size='-O5 -xspace'
3456 _flags_filter=suncc_flags
3457 elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3459 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3460 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3463 _flags_filter='filter_out -Wdisabled-optimization'
3464 elif $_cc -v 2>&1 | grep -q Open64; then
3466 _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3467 _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3470 _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3471 elif $_cc -V 2>&1 | grep -q Portland; then
3473 _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3474 opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3475 _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3476 _cflags_size="-O2 -Munroll=c:1 $opt_common"
3478 _flags_filter=pgi_flags
3479 elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3481 _ident=$($_cc | head -n1)
3482 # 4509: "This form of conditional instruction is deprecated"
3483 _flags="-nologo -ignore 4509"
3484 _flags_filter=armasm_flags
3485 elif $_cc 2>&1 | grep -q Intel; then
3487 _ident=$($cc 2>&1 | head -n1)
3488 _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3489 # Not only is O3 broken on 13.x+ but it is slower on all previous
3490 # versions (tested) as well.
3492 _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3493 if $_cc 2>&1 | grep -q Linker; then
3500 _flags_filter=icl_flags
3502 _ld_path='-libpath:'
3503 # -Qdiag-error to make icl error when seeing certain unknown arguments
3504 _flags='-nologo -Qdiag-error:4044,10157'
3505 # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3506 # with MSVC which enables it by default.
3507 _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3508 if [ $pfx = hostcc ]; then
3509 append _cflags -Dsnprintf=_snprintf
3512 elif $_cc 2>&1 | grep -q Microsoft; then
3514 _ident=$($cc 2>&1 | head -n1)
3515 _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3516 _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3519 if $_cc 2>&1 | grep -q Linker; then
3526 _flags_filter=msvc_flags
3528 _ld_path='-libpath:'
3530 _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3531 if [ $pfx = hostcc ]; then
3532 append _cflags -Dsnprintf=_snprintf
3535 elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3537 _ident=$($_cc --version | head -n1)
3541 _flags_filter=cparser_flags
3544 eval ${pfx}_type=\$_type
3545 eval ${pfx}_ident=\$_ident
3549 eval ${1}_C=\${_cc_c-\${${1}_C}}
3550 eval ${1}_E=\${_cc_e-\${${1}_E}}
3551 eval ${1}_O=\${_cc_o-\${${1}_O}}
3553 if [ -n "$_depflags" ]; then
3554 eval ${1}_DEPFLAGS=\$_depflags
3556 eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3557 eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3558 eval DEP${1}FLAGS=\$_flags
3563 cflags_filter=$_flags_filter
3564 cflags_speed=$_cflags_speed
3565 cflags_size=$_cflags_size
3566 cflags_noopt=$_cflags_noopt
3567 add_cflags $_flags $_cflags
3568 cc_ldflags=$_ldflags
3571 probe_cc hostcc "$host_cc"
3572 host_cflags_filter=$_flags_filter
3573 add_host_cflags $_flags $_cflags
3576 test -n "$cc_type" && enable $cc_type ||
3577 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3579 : ${as_default:=$cc}
3580 : ${dep_cc_default:=$cc}
3581 : ${ld_default:=$cc}
3582 : ${host_ld_default:=$host_cc}
3583 set_default ar as dep_cc ld host_ld windres
3586 asflags_filter=$_flags_filter
3587 add_asflags $_flags $_cflags
3591 ldflags_filter=$_flags_filter
3592 add_ldflags $_flags $_ldflags
3593 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3595 LD_LIB=${_ld_lib-$LD_LIB}
3596 LD_PATH=${_ld_path-$LD_PATH}
3598 probe_cc hostld "$host_ld"
3599 host_ldflags_filter=$_flags_filter
3600 add_host_ldflags $_flags $_ldflags
3601 HOSTLD_O=${_ld_o-$HOSTLD_O}
3603 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3604 probe_cc depcc "$dep_cc"
3605 CCDEP=${_DEPCMD:-$DEPCMD}
3606 CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3610 if $ar 2>&1 | grep -q Microsoft; then
3613 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3616 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3617 arflags='-Xany -r -c'
3619 elif $ar 2>&1 | grep -q "\[D\] "; then
3627 add_cflags $extra_cflags
3628 add_cxxflags $extra_cxxflags
3629 add_asflags $extra_cflags
3631 if test -n "$sysroot"; then
3634 add_cppflags --sysroot="$sysroot"
3635 add_ldflags --sysroot="$sysroot"
3636 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3637 add_cppflags -isysroot "$sysroot"
3638 add_ldflags -isysroot "$sysroot"
3641 add_cppflags -I"$sysinclude"
3642 add_ldflags --sysroot="$sysroot"
3647 if test "$cpu" = host; then
3648 enabled cross_compile &&
3649 die "--cpu=host makes no sense when cross-compiling."
3654 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3656 s/.*$1=\\([^ ]*\\).*/\\1/
3661 cpu=$(check_native -march || check_native -mcpu)
3665 test "${cpu:-host}" = host &&
3666 die "--cpu=host not supported with compiler $cc"
3669 # Deal with common $arch aliases
3683 "Power Macintosh"|ppc*|powerpc*)
3698 i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3703 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3706 # Add processor-specific flags
3707 if enabled aarch64; then
3711 cpuflags="-march=$cpu"
3714 cpuflags="-mcpu=$cpu"
3718 elif enabled alpha; then
3720 cpuflags="-mcpu=$cpu"
3722 elif enabled arm; then
3725 check_cpp_condition stddef.h \
3726 "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3731 if check_arm_arch 4; then echo armv4;
3732 elif check_arm_arch 4T; then echo armv4t;
3733 elif check_arm_arch 5; then echo armv5;
3734 elif check_arm_arch 5E; then echo armv5e;
3735 elif check_arm_arch 5T; then echo armv5t;
3736 elif check_arm_arch 5TE; then echo armv5te;
3737 elif check_arm_arch 5TEJ; then echo armv5te;
3738 elif check_arm_arch 6; then echo armv6;
3739 elif check_arm_arch 6J; then echo armv6j;
3740 elif check_arm_arch 6K; then echo armv6k;
3741 elif check_arm_arch 6Z; then echo armv6z;
3742 elif check_arm_arch 6ZK; then echo armv6zk;
3743 elif check_arm_arch 6T2; then echo armv6t2;
3744 elif check_arm_arch 7; then echo armv7;
3745 elif check_arm_arch 7A 7_A; then echo armv7-a;
3746 elif check_arm_arch 7R 7_R; then echo armv7-r;
3747 elif check_arm_arch 7M 7_M; then echo armv7-m;
3748 elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3749 elif check_arm_arch 8A 8_A; then echo armv8-a;
3753 [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3757 cpuflags="-march=$cpu"
3758 subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3761 cpuflags="-mcpu=$cpu"
3763 cortex-a*) subarch=armv7a ;;
3764 cortex-r*) subarch=armv7r ;;
3765 cortex-m*) enable thumb; subarch=armv7m ;;
3766 arm11*) subarch=armv6 ;;
3767 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3768 armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
3769 *) subarch=$(probe_arm_arch) ;;
3775 armv5t*) enable fast_clz ;;
3778 disabled fast_unaligned || enable fast_unaligned
3782 elif enabled avr32; then
3787 cpuflags="-mpart=$cpu"
3791 cpuflags="-march=$cpu"
3795 cpuflags="-mcpu=$cpu"
3799 cpuflags="-march=$cpu"
3803 elif enabled bfin; then
3805 cpuflags="-mcpu=$cpu"
3807 elif enabled mips; then
3809 cpuflags="-march=$cpu"
3825 24kef*|34kf*|1004kf*)
3833 elif enabled ppc; then
3838 case $(tolower $cpu) in
3839 601|ppc601|powerpc601)
3840 cpuflags="-mcpu=601"
3843 603*|ppc603*|powerpc603*)
3844 cpuflags="-mcpu=603"
3847 604*|ppc604*|powerpc604*)
3848 cpuflags="-mcpu=604"
3851 g3|75*|ppc75*|powerpc75*)
3852 cpuflags="-mcpu=750"
3855 g4|745*|ppc745*|powerpc745*)
3856 cpuflags="-mcpu=7450"
3858 74*|ppc74*|powerpc74*)
3859 cpuflags="-mcpu=7400"
3861 g5|970|ppc970|powerpc970)
3862 cpuflags="-mcpu=970"
3865 cpuflags="-mcpu=$cpu"
3868 cpuflags="-mcpu=cell"
3872 cpuflags="-mcpu=e500mc"
3876 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3881 cpuflags="-mcpu=8540 -mhard-float"
3887 elif enabled sparc; then
3890 cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3891 cpuflags="-mcpu=$cpu"
3893 ultrasparc*|niagara[234])
3894 cpuflags="-mcpu=$cpu"
3898 elif enabled x86; then
3902 cpuflags="-march=$cpu"
3906 # targets that do NOT support nopl and conditional mov (cmov)
3907 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3908 cpuflags="-march=$cpu"
3911 # targets that do support nopl and conditional mov (cmov)
3912 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3913 |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3914 cpuflags="-march=$cpu"
3918 # targets that do support conditional mov but on which it's slow
3919 pentium4|pentium4m|prescott|nocona)
3920 cpuflags="-march=$cpu"
3928 if [ "$cpu" != generic ]; then
3929 add_cflags $cpuflags
3930 add_asflags $cpuflags
3933 # compiler sanity check
3935 int main(void){ return 0; }
3937 if test "$?" != 0; then
3938 echo "$cc is unable to create an executable file."
3939 if test -z "$cross_prefix" && ! enabled cross_compile ; then
3940 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3941 echo "Only do this if you know what cross compiling means."
3943 die "C compiler test failed."
3946 add_cppflags -D_ISOC99_SOURCE
3947 add_cxxflags -D__STDC_CONSTANT_MACROS
3948 check_cflags -std=c99
3949 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3952 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3956 add_host_cppflags -D_ISOC99_SOURCE
3957 check_host_cflags -std=c99
3958 check_host_cflags -Wall
3959 check_host_cflags -O3
3965 check_code cc "" "int test[2*($expr) - 1]" &&
3966 subarch=$arch64 || subarch=$arch32
3974 check_64bit mips mips64 '_MIPS_SIM > 1'
3978 check_64bit parisc parisc64 'sizeof(void *) > 4'
3982 check_64bit ppc ppc64 'sizeof(void *) > 4'
3986 check_64bit s390 s390x 'sizeof(void *) > 4'
3990 check_64bit sparc sparc64 'sizeof(void *) > 4'
3994 check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3995 # Treat x32 as x64 for now. Note it also needs spic=$shared
3996 test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
3998 if test "$subarch" = "x86_64"; then
4003 check_cc <<EOF && subarch="ppc64"
4004 int test[(int)sizeof(char*) - 7];
4010 enabled spic && enable_weak pic
4016 add_cppflags '-I\$(SRC_PATH)/compat/aix'
4017 enabled shared && add_ldflags -Wl,-brtl
4021 enable section_data_rel_ro
4022 SLIB_INSTALL_NAME='$(SLIBNAME)'
4024 # soname not set on purpose
4028 prefix_default="/boot/common"
4029 network_extralibs="-lnetwork"
4033 SHFLAGS='-shared -Wl,-h,$$(@F)'
4034 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4035 network_extralibs="-lsocket -lnsl"
4036 # When using suncc to build, the Solaris linker will mark
4037 # an executable with each instruction set encountered by
4038 # the Solaris assembler. As our libraries contain their own
4039 # guards for processor-specific code, instead suppress
4040 # generation of the HWCAPS ELF section on Solaris x86 only.
4041 enabled_all suncc x86 &&
4042 echo "hwcap_1 = OVERRIDE;" > mapfile &&
4043 add_ldflags -Wl,-M,mapfile
4044 nm_default='nm -P -g'
4048 oss_indev_extralibs="-lossaudio"
4049 oss_outdev_extralibs="-lossaudio"
4050 enabled gcc || check_ldflags -Wl,-zmuldefs
4055 SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4057 oss_indev_extralibs="-lossaudio"
4058 oss_outdev_extralibs="-lossaudio"
4066 add_extralibs -lpoll -lgnugetopt
4070 enabled ppc && add_asflags -force_cpusubtype_ALL
4071 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4072 enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4074 add_ldflags -Wl,-dynamic,-search_paths_first
4076 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4077 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4079 enabled x86_64 && objformat="macho64"
4080 enabled_any pic shared x86_64 ||
4081 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4084 if test $target_os = "mingw32ce"; then
4090 if enabled x86_64; then
4091 LIBTARGET="i386:x86-64"
4092 elif enabled arm; then
4095 enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4096 check_ldflags -Wl,--nxcompat
4097 check_ldflags -Wl,--dynamicbase
4098 enabled x86_32 && check_ldflags -Wl,--large-address-aware
4099 shlibdir_default="$bindir_default"
4102 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4103 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4104 dlltool="${cross_prefix}dlltool"
4105 if check_cmd lib.exe -list; then
4106 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4107 if enabled x86_64; then
4110 elif check_cmd $dlltool --version; then
4111 SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4113 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4115 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4116 SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4117 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4124 if enabled shared; then
4125 # Link to the import library instead of the normal static library
4128 # Cannot build both shared and static libs with MSVC or icl.
4131 enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4132 shlibdir_default="$bindir_default"
4135 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4136 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4137 SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4138 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4140 SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4141 SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4142 SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4149 shlibdir_default="$bindir_default"
4152 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4153 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4154 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4156 SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4157 SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4160 enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4162 *-dos|freedos|opendos)
4163 network_extralibs="-lsocket"
4166 add_cppflags -U__STRICT_ANSI__
4170 enable section_data_rel_ro
4174 ranlib="echo ignoring ranlib"
4180 add_cppflags -D_GNU_SOURCE
4181 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4182 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4186 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4187 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4188 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4189 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4190 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4191 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4192 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4193 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4194 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4195 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4196 SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4198 enable_weak os2threads
4201 add_cppflags -D_BSD_SOURCE
4206 add_cppflags -D_QNX_SOURCE
4207 network_extralibs="-lsocket"
4212 add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4213 add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4214 add_ldflags -Wl,--target1-abs,--no-undefined \
4215 -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4216 -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4217 add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4218 -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4219 -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4222 add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4227 add_cppflags -D_C99_SNPRINTF_EXTENSION \
4228 -D_REENTRANT_SOURCE \
4229 -D_RESEARCH_SOURCE \
4232 add_compat strtod.o strtod=avpriv_strtod
4233 network_extralibs='-lbsd'
4234 exeobjs=compat/plan9/main.o
4241 die "Unknown OS '$target_os'."
4245 # determine libc flavour
4250 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4251 if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4252 eval ${pfx}libc_type=uclibc
4253 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4254 elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4255 eval ${pfx}libc_type=glibc
4256 add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4257 # MinGW headers can be installed on Cygwin, so check for newlib first.
4258 elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4259 eval ${pfx}libc_type=newlib
4260 add_${pfx}cppflags -U__STRICT_ANSI__
4261 # MinGW64 is backwards compatible with MinGW32, so check for it first.
4262 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4263 eval ${pfx}libc_type=mingw64
4264 if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4265 add_compat msvcrt/snprintf.o
4266 add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4268 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4269 eval test \$${pfx_no_}cc_type = "gcc" &&
4270 add_${pfx}cppflags -D__printf__=__gnu_printf__
4271 elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
4272 check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4273 eval ${pfx}libc_type=mingw32
4274 check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4275 (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4276 die "ERROR: MinGW32 runtime version must be >= 3.15."
4277 add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4278 eval test \$${pfx_no_}cc_type = "gcc" &&
4279 add_${pfx}cppflags -D__printf__=__gnu_printf__
4280 elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4281 eval ${pfx}libc_type=msvcrt
4282 # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4283 # 0x601 by default unless something else is set by the user.
4284 # This can easily lead to us detecting functions only present
4285 # in such new versions and producing binaries requiring windows 7.0.
4286 # Therefore explicitly set the default to XP unless the user has
4287 # set something else on the command line.
4288 check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4289 add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4290 elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4291 eval ${pfx}libc_type=klibc
4292 elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4293 eval ${pfx}libc_type=bionic
4294 elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4295 eval ${pfx}libc_type=solaris
4296 add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4298 check_${pfx}cc <<EOF
4300 void *v = localtime_r;
4302 test "$?" != 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
4304 void *v = localtime_r;
4310 test -n "$libc_type" && enable libc_$libc_type
4312 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4316 add_compat strtod.o strtod=avpriv_strtod
4319 add_compat strtod.o strtod=avpriv_strtod
4320 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
4321 _snprintf=avpriv_snprintf \
4322 vsnprintf=avpriv_vsnprintf
4326 # hacks for compiler/libc/os combinations
4328 if enabled_all tms470 libc_glibc; then
4329 CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4330 add_cppflags -D__USER_LABEL_PREFIX__=
4331 add_cppflags -D__builtin_memset=memset
4332 add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4333 add_cflags -pds=48 # incompatible redefinition of macro
4336 if enabled_all ccc libc_glibc; then
4337 add_ldflags -Wl,-z,now # calls to libots crash without this
4340 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4341 add_cppflags '-I\$(SRC_PATH)/compat/float'
4344 echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4347 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4349 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4352 : ${shlibdir_default:="$libdir"}
4354 set_default $PATHS_LIST
4357 # we need to build at least one lib type
4358 if ! enabled_any static shared; then
4360 At least one library type must be built.
4361 Specify --enable-static to build the static libraries or --enable-shared to
4362 build the shared libraries as well. To only build the shared libraries specify
4363 --disable-static in addition to --enable-shared.
4368 die_license_disabled() {
4369 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4372 die_license_disabled_gpl() {
4373 enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4376 die_license_disabled gpl frei0r
4377 die_license_disabled gpl libcdio
4378 die_license_disabled gpl libsmbclient
4379 die_license_disabled gpl libutvideo
4380 die_license_disabled gpl libvidstab
4381 die_license_disabled gpl libx264
4382 die_license_disabled gpl libx265
4383 die_license_disabled gpl libxavs
4384 die_license_disabled gpl libxvid
4385 die_license_disabled gpl libzvbi
4386 die_license_disabled gpl x11grab
4388 die_license_disabled nonfree libaacplus
4389 die_license_disabled nonfree libfaac
4390 die_license_disabled nonfree nvenc
4391 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4392 enabled gpl && die_license_disabled_gpl nonfree openssl
4394 die_license_disabled version3 libopencore_amrnb
4395 die_license_disabled version3 libopencore_amrwb
4396 die_license_disabled version3 libsmbclient
4397 die_license_disabled version3 libvo_aacenc
4398 die_license_disabled version3 libvo_amrwbenc
4400 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4402 disabled optimizations || check_cflags -fomit-frame-pointer
4405 disabled pic && return
4408 case "$target_os" in
4418 enabled pic && enable_weak_pic
4420 check_cc <<EOF || die "Symbol mangling check failed."
4423 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4424 extern_prefix=${sym%%ff_extern*}
4426 check_cc <<EOF && enable_weak inline_asm
4427 void foo(void) { __asm__ volatile ("" ::); }
4431 for restrict_keyword in restrict __restrict__ __restrict; do
4432 check_cc <<EOF && _restrict=$restrict_keyword && break
4433 void foo(char * $restrict_keyword p);
4437 check_cc <<EOF && enable pragma_deprecated
4438 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4441 check_cc <<EOF && enable attribute_packed
4442 struct { int x; } __attribute__((packed)) x;
4445 check_cc <<EOF && enable attribute_may_alias
4446 union { int x; } __attribute__((may_alias)) x;
4449 check_cc <<EOF || die "endian test failed"
4450 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4452 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4454 if [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] || enabled ppc64; then
4455 if ! enabled bigendian && enabled altivec ;then
4461 log "check_gas using '$as' as AS"
4462 # :vararg is used on aarch64, arm and ppc altivec
4463 check_as <<EOF || return 1
4464 .macro m n, y:vararg=0
4469 # .altmacro is only used in arm asm
4470 ! enabled arm || check_as <<EOF || return 1
4477 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4479 enabled_any arm aarch64 && nogas=die
4480 enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4484 arm*) gaspp_as_type=armasm; as_noop=-h ;;
4485 gcc) gaspp_as_type=gas ;;
4486 *) gaspp_as_type=$as_type ;;
4489 [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4491 test "${as#*gas-preprocessor.pl}" != "$as" ||
4492 check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4493 gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4495 if ! check_gas ; then
4498 $nogas "GNU assembler not found, install/update gas-preprocessor"
4501 check_as <<EOF && enable as_func
4507 check_inline_asm inline_asm_labels '"1:\n"'
4509 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4511 if enabled aarch64; then
4512 enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
4513 # internal assembler in clang 3.3 does not support this instruction
4514 enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
4515 enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
4517 map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4519 elif enabled alpha; then
4523 elif enabled arm; then
4525 check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4526 float func(float a, float b){ return a+b; }
4529 enabled thumb && check_cflags -mthumb || check_cflags -marm
4531 if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4533 elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4534 case "${cross_prefix:-$cc}" in
4535 *hardfloat*) enable vfp_args; fpabi=vfp ;;
4536 *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4537 __asm__ (".eabi_attribute 28, 1");
4538 int main(void) { return 0; }
4541 warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4544 enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4545 enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
4546 enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4547 enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
4548 enabled vfp && check_insn vfp 'fadds s0, s0, s0'
4549 enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
4550 enabled setend && check_insn setend 'setend be'
4552 [ $target_os = linux ] || [ $target_os = android ] ||
4553 map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4556 check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4558 check_as <<EOF && enable as_dn_directive
4563 [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4565 elif enabled mips; then
4567 check_inline_asm loongson '"dmult.g $1, $2, $3"'
4568 enabled mips32r2 && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4569 check_inline_asm mips32r2 '"rotr $t0, $t1, 1"'
4570 enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4571 check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4572 enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4573 check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4574 enabled mipsfpu && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4575 check_inline_asm mipsfpu '"madd.d $f0, $f2, $f4, $f6"'
4577 elif enabled parisc; then
4579 if enabled gcc; then
4580 case $($cc -dumpversion) in
4581 4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
4585 elif enabled ppc; then
4587 enable local_aligned_8 local_aligned_16 local_aligned_32
4589 check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
4590 check_inline_asm ibm_asm '"add 0, 0, 0"'
4591 check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
4592 check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4594 # AltiVec flags: The FSF version of GCC differs from the Apple version
4595 if enabled altivec; then
4596 check_cflags -maltivec -mabi=altivec &&
4597 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4598 check_cflags -faltivec
4600 # check if our compiler supports Motorola AltiVec C API
4601 check_cc <<EOF || disable altivec
4604 vector signed int v1 = (vector signed int) { 0 };
4605 vector signed int v2 = (vector signed int) { 1 };
4606 v1 = vec_add(v1, v2);
4611 enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4614 if enabled vsx; then
4617 elif enabled x86; then
4619 check_builtin rdtsc intrin.h "__rdtsc()"
4620 check_builtin mm_empty mmintrin.h "_mm_empty()"
4622 enable local_aligned_8 local_aligned_16 local_aligned_32
4624 # check whether EBP is available on x86
4625 # As 'i' is stored on the stack, this program will crash
4626 # if the base pointer is used to access it because the
4627 # base pointer is cleared in the inline assembly code.
4628 check_exec_crash <<EOF && enable ebp_available
4630 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4634 # check whether EBX is available on x86
4635 check_inline_asm ebx_available '""::"b"(0)' &&
4636 check_inline_asm ebx_available '"":::"%ebx"'
4638 # check whether xmm clobbers are supported
4639 check_inline_asm xmm_clobbers '"":::"%xmm0"'
4641 check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4642 check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4644 # check whether binutils is new enough to compile SSSE3/MMXEXT
4645 enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
4646 enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4648 if ! disabled_any asm mmx yasm; then
4649 if check_cmd $yasmexe --version; then
4650 enabled x86_64 && yasm_extra="-m amd64"
4651 yasm_debug="-g dwarf2"
4652 elif check_cmd nasm -v; then
4654 yasm_debug="-g -F dwarf"
4655 if enabled x86_64; then
4656 case "$objformat" in
4657 elf) objformat=elf64 ;;
4658 win32) objformat=win64 ;;
4663 YASMFLAGS="-f $objformat $yasm_extra"
4664 enabled pic && append YASMFLAGS "-DPIC"
4665 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
4666 case "$objformat" in
4667 elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4670 check_yasm "movbe ecx, [5]" && enable yasm ||
4671 die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4672 check_yasm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
4673 check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4674 check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4675 check_yasm "CPU amdnop" || disable cpunop
4679 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4686 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4688 check_ldflags -Wl,--as-needed
4689 check_ldflags -Wl,-z,noexecstack
4691 if check_func dlopen; then
4693 elif check_func dlopen -ldl; then
4697 frei0r_filter_extralibs='$ldl'
4698 frei0r_src_filter_extralibs='$ldl'
4699 ladspa_filter_extralibs='$ldl'
4700 nvenc_encoder_extralibs='$ldl'
4702 if ! disabled network; then
4703 check_func getaddrinfo $network_extralibs
4704 check_func getservbyport $network_extralibs
4705 check_func inet_aton $network_extralibs
4707 check_type netdb.h "struct addrinfo"
4708 check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4709 check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4710 check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4711 check_type poll.h "struct pollfd"
4712 check_type netinet/sctp.h "struct sctp_event_subscribe"
4713 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4714 check_type netinet/in.h "struct sockaddr_in6"
4715 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4716 check_type "sys/types.h sys/socket.h" socklen_t
4718 # Prefer arpa/inet.h over winsock2
4719 if check_header arpa/inet.h ; then
4720 check_func closesocket
4721 elif check_header winsock2.h ; then
4722 check_func_headers winsock2.h closesocket -lws2 &&
4723 network_extralibs="-lws2" ||
4724 { check_func_headers winsock2.h closesocket -lws2_32 &&
4725 network_extralibs="-lws2_32"; } || disable winsock2_h network
4726 check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4728 check_type ws2tcpip.h socklen_t
4729 check_type ws2tcpip.h "struct addrinfo"
4730 check_type ws2tcpip.h "struct group_source_req"
4731 check_type ws2tcpip.h "struct ip_mreq_source"
4732 check_type ws2tcpip.h "struct ipv6_mreq"
4733 check_type winsock2.h "struct pollfd"
4734 check_struct winsock2.h "struct sockaddr" sa_len
4735 check_type ws2tcpip.h "struct sockaddr_in6"
4736 check_type ws2tcpip.h "struct sockaddr_storage"
4742 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4743 check_builtin atomic_compare_exchange "" "int *ptr, *oldval; int newval; __atomic_compare_exchange_n(ptr, oldval, newval, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)"
4744 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4745 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4746 check_builtin sarestart signal.h "SA_RESTART"
4747 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4749 check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
4750 check_func ${malloc_prefix}memalign && enable memalign
4751 check_func ${malloc_prefix}posix_memalign && enable posix_memalign
4754 check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4757 check_func gethrtime
4759 check_func getrusage
4760 check_func gettimeofday
4763 check_func localtime_r
4764 check_func mach_absolute_time
4768 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4769 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4770 check_func sched_getaffinity
4771 check_func setrlimit
4772 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4773 check_func strerror_r
4778 check_func_headers conio.h kbhit
4779 check_func_headers io.h setmode
4780 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4781 check_func_headers stdlib.h getenv
4783 check_func_headers windows.h CoTaskMemFree -lole32
4784 check_func_headers windows.h GetProcessAffinityMask
4785 check_func_headers windows.h GetProcessTimes
4786 check_func_headers windows.h GetSystemTimeAsFileTime
4787 check_func_headers windows.h MapViewOfFile
4788 check_func_headers windows.h PeekNamedPipe
4789 check_func_headers windows.h SetConsoleTextAttribute
4790 check_func_headers windows.h Sleep
4791 check_func_headers windows.h VirtualAlloc
4792 check_struct windows.h "CONDITION_VARIABLE" Ptr
4793 check_func_headers glob.h glob
4795 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4797 check_header direct.h
4798 check_header dlfcn.h
4800 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4802 check_header libcrystalhd/libcrystalhd_if.h
4803 check_header mach/mach_time.h
4804 check_header malloc.h
4805 check_header net/udplite.h
4807 check_header sys/mman.h
4808 check_header sys/param.h
4809 check_header sys/resource.h
4810 check_header sys/select.h
4811 check_header sys/time.h
4812 check_header sys/un.h
4813 check_header termios.h
4814 check_header unistd.h
4815 check_header vdpau/vdpau.h
4816 check_header vdpau/vdpau_x11.h
4817 check_header VideoDecodeAcceleration/VDADecoder.h
4818 check_header windows.h
4819 check_header X11/extensions/XvMClib.h
4820 check_header asm/types.h
4822 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4823 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4824 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4826 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4828 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC"
4830 if ! disabled w32threads && ! enabled pthreads; then
4831 check_func_headers "windows.h process.h" _beginthreadex &&
4832 enable w32threads || disable w32threads
4835 # check for some common methods of building with pthread support
4836 # do this before the optional library checks as some of them require pthreads
4837 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4839 if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4841 add_extralibs -pthread
4842 elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4843 add_cflags -pthreads
4844 add_extralibs -pthreads
4845 elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4846 add_cflags -ldl -pthread
4847 add_extralibs -ldl -pthread
4848 elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4849 add_extralibs -lpthreadGC2
4850 elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4852 elif ! check_func pthread_join && ! check_func pthread_create; then
4855 check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4859 if enabled pthreads; then
4860 check_func pthread_cancel
4863 disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
4864 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4865 disabled lzma || check_lib2 lzma.h lzma_version_number -llzma || disable lzma
4867 check_lib math.h sin -lm && LIBM="-lm"
4868 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4874 for func in $MATH_FUNCS; do
4875 eval check_mathfunc $func \${${func}_args:-1}
4878 # these are off by default, so fail if requested and not available
4879 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4880 enabled avisynth && { { check_lib2 "windows.h" LoadLibrary; } ||
4881 { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4882 die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4883 enabled decklink && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4884 enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4885 enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4886 enabled ladspa && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4887 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4888 enabled libaacplus && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4889 enabled libass && require_pkg_config libass ass/ass.h ass_library_init
4890 enabled libbluray && require_pkg_config libbluray libbluray/bluray.h bd_open
4891 enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
4892 enabled libcelt && require libcelt celt/celt.h celt_decode -lcelt0 &&
4893 { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4894 die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4895 enabled libcaca && require_pkg_config caca caca.h caca_create_canvas
4896 enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4897 enabled libfdk_aac && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4898 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"
4899 enabled libflite && require2 libflite "flite/flite.h" flite_init $flite_libs
4900 enabled fontconfig && enable libfontconfig
4901 enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4902 enabled libfreetype && require_libfreetype
4903 enabled libfribidi && require_pkg_config fribidi fribidi.h fribidi_version_info
4904 enabled libgme && require libgme gme/gme.h gme_new_emu -lgme -lstdc++
4905 enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4906 check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4907 done || die "ERROR: libgsm not found"; }
4908 enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4909 enabled libmfx && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4910 enabled libmodplug && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
4911 enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4912 enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
4913 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4914 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4915 enabled libopencv && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4916 enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4917 enabled libopenjpeg && { check_lib openjpeg.h opj_version -lopenmj2 -DOPJ_STATIC ||
4918 check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4919 check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4920 die "ERROR: libopenjpeg not found"; }
4921 enabled libopus && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4922 enabled libpulse && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4923 enabled libquvi && require_pkg_config libquvi quvi/quvi.h quvi_init
4924 enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4925 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4926 enabled libshine && require_pkg_config shine shine/layer3.h shine_encode_buffer
4927 enabled libsmbclient && { use_pkg_config smbclient libsmbclient.h smbc_init ||
4928 require smbclient libsmbclient.h smbc_init -lsmbclient; }
4929 enabled libsoxr && require libsoxr soxr.h soxr_create -lsoxr
4930 enabled libssh && require_pkg_config libssh libssh/sftp.h sftp_init
4931 enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4932 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4933 media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4934 media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4935 enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4936 enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame &&
4937 { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4938 die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4939 enabled libutvideo && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4940 enabled libv4l2 && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4941 enabled libvidstab && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
4942 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4943 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4944 enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4946 enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4947 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4948 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 ||
4949 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4950 enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4951 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; } }
4952 enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
4953 enabled libwebp && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
4954 enabled libx264 && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
4955 { require libx264 x264.h x264_encoder_encode -lx264 &&
4956 warn "using libx264 without pkg-config"; } } &&
4957 { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4958 die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4959 enabled libx265 && require_pkg_config x265 x265.h x265_encoder_encode &&
4960 { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4961 die "ERROR: libx265 version must be >= 17."; }
4962 enabled libxavs && require libxavs xavs.h xavs_encoder_encode -lxavs
4963 enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
4964 enabled libzmq && require_pkg_config libzmq zmq.h zmq_ctx_new
4965 enabled libzvbi && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4966 enabled nvenc && { check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found."; } &&
4967 { [ $target_os != cygwin ] || die "ERROR: NVENC is not supported on Cygwin currently."; }
4968 enabled openal && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4969 check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4970 die "ERROR: openal not found"; } &&
4971 { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4972 die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4973 enabled opencl && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4974 check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4975 die "ERROR: opencl not found"; } &&
4976 { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4977 check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4978 die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4979 enabled opengl && { check_lib GL/glx.h glXGetProcAddress "-lGL" ||
4980 check_lib2 windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
4981 check_lib2 OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
4982 check_lib2 ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
4983 die "ERROR: opengl not found."
4985 enabled openssl && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4986 check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4987 check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4988 die "ERROR: openssl not found"; }
4989 enabled qtkit_indev && { check_header_oc QTKit/QTKit.h || disable qtkit_indev; }
4991 if enabled gnutls; then
4992 { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4993 { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4997 if enabled libdc1394; then
4998 { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4999 enable libdc1394_2; } ||
5000 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
5001 enable libdc1394_1; } ||
5002 die "ERROR: No version of libdc1394 found "
5004 if ! disabled sdl; then
5005 SDL_CONFIG="${cross_prefix}sdl-config"
5006 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
5007 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5008 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5011 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5012 sdl_cflags=$("${SDL_CONFIG}" --cflags)
5013 sdl_libs=$("${SDL_CONFIG}" --libs)
5014 check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
5015 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
5016 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
5018 elif enabled sdl ; then
5019 die "ERROR: SDL not found"
5025 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
5027 makeinfo --version > /dev/null 2>&1 && enable makeinfo || disable makeinfo
5028 enabled makeinfo && (makeinfo --version | \
5029 grep -q 'makeinfo (GNU texinfo) 5' > /dev/null 2>&1) \
5030 && enable makeinfo_html || disable makeinfo_html
5031 disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
5032 perl -v > /dev/null 2>&1 && enable perl || disable perl
5033 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
5034 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
5036 check_header linux/fb.h
5037 check_header linux/videodev.h
5038 check_header linux/videodev2.h
5039 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5041 check_header sys/videoio.h
5042 check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
5044 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
5045 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
5046 # w32api 3.12 had it defined wrong
5047 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
5049 check_type "dshow.h" IBaseFilter
5051 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
5052 { check_header dev/bktr/ioctl_meteor.h &&
5053 check_header dev/bktr/ioctl_bt848.h; } ||
5054 { check_header machine/ioctl_meteor.h &&
5055 check_header machine/ioctl_bt848.h; } ||
5056 { check_header dev/video/meteor/ioctl_meteor.h &&
5057 check_header dev/video/bktr/ioctl_bt848.h; } ||
5058 check_header dev/ic/bt8xx.h
5060 check_header sndio.h
5061 if check_struct sys/soundcard.h audio_buf_info bytes; then
5062 enable_safe sys/soundcard.h
5064 check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
5065 #include <sys/soundcard.h>
5069 check_header soundcard.h
5071 enabled_any alsa_indev alsa_outdev &&
5072 check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
5074 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
5075 check_func jack_port_get_latency_range -ljack
5077 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
5079 if enabled libcdio; then
5080 check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5081 check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
5082 die "ERROR: No usable libcdio/cdparanoia found"
5086 check_lib X11/Xlib.h XOpenDisplay -lX11 || disable xlib
5088 if ! disabled libxcb; then
5089 check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || {
5090 enabled libxcb && die "ERROR: libxcb >= 1.4 not found";
5091 } && disable x11grab && enable libxcb
5093 if enabled libxcb; then
5094 disabled libxcb_shm || {
5095 check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
5096 enabled libxcb_shm && die "ERROR: libxcb_shm not found";
5097 } && check_header sys/shm.h && enable libxcb_shm; }
5099 disabled libxcb_xfixes || {
5100 check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
5101 enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
5102 } && enable libxcb_xfixes; }
5104 disabled libxcb_shape || {
5105 check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || {
5106 enabled libxcb_shape && die "ERROR: libxcb_shape not found";
5107 } && enable libxcb_shape; }
5109 add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
5110 add_extralibs $xcb_libs $xcb_shm_libs $xcb_xfixes_libs $xcb_shape_libs
5114 if enabled x11grab; then
5115 enabled xlib || die "ERROR: Xlib not found"
5116 require Xext X11/extensions/XShm.h XShmCreateImage -lXext
5117 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
5120 check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
5122 enabled dxva2api_h &&
5123 check_cc <<EOF && enable dxva2api_cobj
5124 #define _WIN32_WINNT 0x0600
5126 #include <windows.h>
5128 #include <dxva2api.h>
5129 int main(void) { IDirectXVideoDecoder *o = NULL; IDirectXVideoDecoder_Release(o); return 0; }
5133 check_lib va/va.h vaInitialize -lva ||
5137 check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
5140 enabled vdpau && enabled xlib &&
5141 check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
5142 prepend ffmpeg_libs $($ldflags_filter "-lvdpau") &&
5145 # Funny iconv installations are not unusual, so check it after all flags have been set
5146 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
5148 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
5150 # add some useful compiler flags if supported
5151 check_cflags -Wdeclaration-after-statement
5153 check_cflags -Wdisabled-optimization
5154 check_cflags -Wpointer-arith
5155 check_cflags -Wredundant-decls
5156 check_cflags -Wwrite-strings
5157 check_cflags -Wtype-limits
5158 check_cflags -Wundef
5159 check_cflags -Wmissing-prototypes
5160 check_cflags -Wno-pointer-to-int-cast
5161 check_cflags -Wstrict-prototypes
5162 check_cflags -Wempty-body
5163 enabled extra_warnings && check_cflags -Winline
5165 check_disable_warning(){
5166 warning_flag=-W${1#-Wno-}
5167 test_cflags $warning_flag && add_cflags $1
5170 check_disable_warning -Wno-parentheses
5171 check_disable_warning -Wno-switch
5172 check_disable_warning -Wno-format-zero-length
5173 check_disable_warning -Wno-pointer-sign
5175 # add some linker flags
5176 check_ldflags -Wl,--warn-common
5177 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
5178 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
5179 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
5181 # add some strip flags
5182 # -wN '..@*' is more selective than -x, but not available everywhere.
5183 check_stripflags -wN \'..@*\' || check_stripflags -x
5185 enabled neon_clobber_test &&
5186 check_ldflags -Wl,--wrap,avcodec_open2 \
5187 -Wl,--wrap,avcodec_decode_audio4 \
5188 -Wl,--wrap,avcodec_decode_video2 \
5189 -Wl,--wrap,avcodec_decode_subtitle2 \
5190 -Wl,--wrap,avcodec_encode_audio2 \
5191 -Wl,--wrap,avcodec_encode_video2 \
5192 -Wl,--wrap,avcodec_encode_subtitle \
5193 -Wl,--wrap,swr_convert \
5194 -Wl,--wrap,avresample_convert ||
5195 disable neon_clobber_test
5197 enabled xmm_clobber_test &&
5198 check_ldflags -Wl,--wrap,avcodec_open2 \
5199 -Wl,--wrap,avcodec_decode_audio4 \
5200 -Wl,--wrap,avcodec_decode_video2 \
5201 -Wl,--wrap,avcodec_decode_subtitle2 \
5202 -Wl,--wrap,avcodec_encode_audio2 \
5203 -Wl,--wrap,avcodec_encode_video \
5204 -Wl,--wrap,avcodec_encode_video2 \
5205 -Wl,--wrap,avcodec_encode_subtitle \
5206 -Wl,--wrap,swr_convert \
5207 -Wl,--wrap,avresample_convert \
5208 -Wl,--wrap,sws_scale ||
5209 disable xmm_clobber_test
5212 if test_ldflags -Wl,--version-script,$TMPV; then
5213 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
5214 check_cc <<EOF && enable symver_asm_label
5215 void ff_foo(void) __asm__ ("av_foo@VERSION");
5216 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
5218 check_cc <<EOF && enable symver_gnu_asm
5219 __asm__(".symver ff_foo,av_foo@VERSION");
5220 void ff_foo(void) {}
5224 if [ -z "$optflags" ]; then
5225 if enabled small; then
5226 optflags=$cflags_size
5227 elif enabled optimizations; then
5228 optflags=$cflags_speed
5230 optflags=$cflags_noopt
5236 enabled lto && check_ldflags "$@"
5240 if enabled lto; then
5241 test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
5243 check_ldflags -flto $cpuflags
5244 disable inline_asm_direct_symbol_refs
5247 check_optflags $optflags
5248 check_optflags -fno-math-errno
5249 check_optflags -fno-signed-zeros
5251 enabled ftrapv && check_cflags -ftrapv
5253 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
5258 if enabled icc; then
5259 # Just warnings, no remarks
5261 # -wd: Disable following warnings
5262 # 144, 167, 556: -Wno-pointer-sign
5263 # 188: enumerated type mixed with another type
5264 # 1292: attribute "foo" ignored
5265 # 1419: external declaration in primary source file
5266 # 10006: ignoring unknown option -fno-signed-zeros
5267 # 10148: ignoring unknown option -Wno-parentheses
5268 # 10156: ignoring option '-W'; no argument required
5269 check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
5270 # 11030: Warning unknown option --as-needed
5271 # 10156: ignoring option '-export'; no argument required
5272 check_ldflags -wd10156,11030
5273 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
5274 enable ebp_available
5275 # The test above does not test linking
5276 enabled lto && disable symver_asm_label
5277 if enabled x86_32; then
5278 icc_version=$($cc -dumpversion)
5279 test ${icc_version%%.*} -ge 11 &&
5280 check_cflags -falign-stack=maintain-16-byte ||
5281 disable aligned_stack
5283 elif enabled ccc; then
5284 # disable some annoying warnings
5285 add_cflags -msg_disable bitnotint
5286 add_cflags -msg_disable mixfuncvoid
5287 add_cflags -msg_disable nonstandcast
5288 add_cflags -msg_disable unsupieee
5289 elif enabled gcc; then
5290 check_optflags -fno-tree-vectorize
5291 check_cflags -Werror=format-security
5292 check_cflags -Werror=implicit-function-declaration
5293 check_cflags -Werror=missing-prototypes
5294 check_cflags -Werror=return-type
5295 check_cflags -Werror=vla
5296 check_cflags -Wformat
5297 enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
5298 elif enabled llvm_gcc; then
5299 check_cflags -mllvm -stack-alignment=16
5300 elif enabled clang; then
5301 check_cflags -mllvm -stack-alignment=16
5302 check_cflags -Qunused-arguments
5303 check_cflags -Werror=implicit-function-declaration
5304 check_cflags -Werror=missing-prototypes
5305 check_cflags -Werror=return-type
5306 elif enabled cparser; then
5307 add_cflags -Wno-missing-variable-declarations
5308 add_cflags -Wno-empty-statement
5309 elif enabled armcc; then
5310 add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
5311 add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
5312 # 2523: use of inline assembly is deprecated
5313 add_cflags -W${armcc_opt},--diag_suppress=2523
5314 add_cflags -W${armcc_opt},--diag_suppress=1207
5315 add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
5316 add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
5317 add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
5318 add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
5319 elif enabled tms470; then
5320 add_cflags -pds=824 -pds=837
5322 elif enabled pathscale; then
5323 add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
5324 elif enabled_any msvc icl; then
5325 enabled x86_32 && disable aligned_stack
5326 enabled_all x86_32 debug && add_cflags -Oy-
5327 enabled debug && add_ldflags -debug
5328 enable pragma_deprecated
5329 if enabled icl; then
5330 # -Qansi-alias is basically -fstrict-aliasing, but does not work
5331 # (correctly) on icl 13.x.
5332 check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
5333 add_cflags -Qansi-alias
5334 # Some inline asm is not compilable in debug
5335 if enabled debug; then
5336 disable ebp_available
5337 disable ebx_available
5340 # msvcrt10 x64 incorrectly enables log2, only msvcrt12 onwards actually has log2.
5341 check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
5346 add_asflags -Qunused-arguments
5352 check_ldflags -Qunused-arguments
5358 enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
5361 add_cppflags -Dmain=plan9_main
5365 enable frame_thread_encoder
5367 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
5369 check_deps $CONFIG_LIST \
5374 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"
5377 if test $target_os = "haiku"; then
5379 disable posix_memalign
5382 enabled_all dxva2 dxva2api_cobj CoTaskMemFree &&
5383 prepend ffmpeg_libs $($ldflags_filter "-lole32" "-luser32") &&
5386 ! enabled_any memalign posix_memalign aligned_malloc &&
5387 enabled simd_align_16 && enable memalign_hack
5390 # -> enable ${lib}_deps_${dep}
5391 # -> add $dep to ${lib}_deps only once
5395 enabled "${lib}_deps_${dep}" && return 0
5396 enable "${lib}_deps_${dep}"
5397 prepend "${lib}_deps" $dep
5400 # merge deps lib components
5401 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
5406 enabled $comp || continue
5407 eval "dep=\"\$${comp}_deps\""
5414 merge_deps libavfilter $FILTER_LIST
5416 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
5418 for thread in $THREADS_LIST; do
5419 if enabled $thread; then
5420 test -n "$thread_type" &&
5421 die "ERROR: Only one thread type must be selected." ||
5422 thread_type="$thread"
5426 enabled zlib && add_cppflags -DZLIB_CONST
5428 # conditional library dependencies, in linking order
5429 enabled amovie_filter && prepend avfilter_deps "avformat avcodec"
5430 enabled aresample_filter && prepend avfilter_deps "swresample"
5431 enabled asyncts_filter && prepend avfilter_deps "avresample"
5432 enabled atempo_filter && prepend avfilter_deps "avcodec"
5433 enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
5434 enabled elbg_filter && prepend avfilter_deps "avcodec"
5435 enabled mcdeint_filter && prepend avfilter_deps "avcodec"
5436 enabled movie_filter && prepend avfilter_deps "avformat avcodec"
5437 enabled pan_filter && prepend avfilter_deps "swresample"
5438 enabled pp_filter && prepend avfilter_deps "postproc"
5439 enabled removelogo_filter && prepend avfilter_deps "avformat avcodec swscale"
5440 enabled resample_filter && prepend avfilter_deps "avresample"
5441 enabled sab_filter && prepend avfilter_deps "swscale"
5442 enabled scale_filter && prepend avfilter_deps "swscale"
5443 enabled showspectrum_filter && prepend avfilter_deps "avcodec"
5444 enabled smartblur_filter && prepend avfilter_deps "swscale"
5445 enabled subtitles_filter && prepend avfilter_deps "avformat avcodec"
5446 enabled uspp_filter && prepend avfilter_deps "avcodec"
5448 enabled lavfi_indev && prepend avdevice_deps "avfilter"
5450 enabled opus_decoder && prepend avcodec_deps "swresample"
5454 eval "deps=\$$lib_deps"
5455 append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
5459 #we have to remove gpl from the deps here as some code assumes all lib deps are libs
5460 postproc_deps="$(filter_out 'gpl' $postproc_deps)"
5462 map 'expand_deps $v' $LIBRARY_LIST
5464 echo "install prefix $prefix"
5465 echo "source path $source_path"
5466 echo "C compiler $cc"
5467 echo "C library $libc_type"
5468 if test "$host_cc" != "$cc"; then
5469 echo "host C compiler $host_cc"
5470 echo "host C library $host_libc_type"
5472 echo "ARCH $arch ($cpu)"
5473 if test "$build_suffix" != ""; then
5474 echo "build suffix $build_suffix"
5476 if test "$progs_suffix" != ""; then
5477 echo "progs suffix $progs_suffix"
5479 if test "$extra_version" != ""; then
5480 echo "version string suffix $extra_version"
5482 echo "big-endian ${bigendian-no}"
5483 echo "runtime cpu detection ${runtime_cpudetect-no}"
5484 if enabled x86; then
5485 echo "${yasmexe} ${yasm-no}"
5486 echo "MMX enabled ${mmx-no}"
5487 echo "MMXEXT enabled ${mmxext-no}"
5488 echo "3DNow! enabled ${amd3dnow-no}"
5489 echo "3DNow! extended enabled ${amd3dnowext-no}"
5490 echo "SSE enabled ${sse-no}"
5491 echo "SSSE3 enabled ${ssse3-no}"
5492 echo "AVX enabled ${avx-no}"
5493 echo "XOP enabled ${xop-no}"
5494 echo "FMA3 enabled ${fma3-no}"
5495 echo "FMA4 enabled ${fma4-no}"
5496 echo "i686 features enabled ${i686-no}"
5497 echo "CMOV is fast ${fast_cmov-no}"
5498 echo "EBX available ${ebx_available-no}"
5499 echo "EBP available ${ebp_available-no}"
5501 if enabled aarch64; then
5502 echo "NEON enabled ${neon-no}"
5503 echo "VFP enabled ${vfp-no}"
5505 if enabled arm; then
5506 echo "ARMv5TE enabled ${armv5te-no}"
5507 echo "ARMv6 enabled ${armv6-no}"
5508 echo "ARMv6T2 enabled ${armv6t2-no}"
5509 echo "VFP enabled ${vfp-no}"
5510 echo "NEON enabled ${neon-no}"
5511 echo "THUMB enabled ${thumb-no}"
5513 if enabled mips; then
5514 echo "MIPS FPU enabled ${mipsfpu-no}"
5515 echo "MIPS32R2 enabled ${mips32r2-no}"
5516 echo "MIPS DSP R1 enabled ${mipsdspr1-no}"
5517 echo "MIPS DSP R2 enabled ${mipsdspr2-no}"
5519 if enabled ppc; then
5520 echo "AltiVec enabled ${altivec-no}"
5521 echo "PPC 4xx optimizations ${ppc4xx-no}"
5522 echo "PPC VSX optimizations ${vsx-no}"
5523 echo "dcbzl available ${dcbzl-no}"
5525 echo "debug symbols ${debug-no}"
5526 echo "strip symbols ${stripping-no}"
5527 echo "optimize for size ${small-no}"
5528 echo "optimizations ${optimizations-no}"
5529 echo "static ${static-no}"
5530 echo "shared ${shared-no}"
5531 echo "postprocessing support ${postproc-no}"
5532 echo "new filter support ${avfilter-no}"
5533 echo "network support ${network-no}"
5534 echo "threading support ${thread_type-no}"
5535 echo "safe bitstream reader ${safe_bitstream_reader-no}"
5536 echo "SDL support ${sdl-no}"
5537 echo "opencl enabled ${opencl-no}"
5538 echo "texi2html enabled ${texi2html-no}"
5539 echo "perl enabled ${perl-no}"
5540 echo "pod2man enabled ${pod2man-no}"
5541 echo "makeinfo enabled ${makeinfo-no}"
5542 echo "makeinfo supports HTML ${makeinfo_html-no}"
5543 test -n "$random_seed" &&
5544 echo "random seed ${random_seed}"
5547 echo "External libraries:"
5548 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
5551 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
5552 echo "Enabled ${type}s:"
5553 eval list=\$$(toupper $type)_LIST
5554 print_enabled '_*' $list | print_3_columns
5558 license="LGPL version 2.1 or later"
5559 if enabled nonfree; then
5560 license="nonfree and unredistributable"
5561 elif enabled gplv3; then
5562 license="GPL version 3 or later"
5563 elif enabled lgplv3; then
5564 license="LGPL version 3 or later"
5565 elif enabled gpl; then
5566 license="GPL version 2 or later"
5569 echo "License: $license"
5571 echo "Creating config.mak, config.h, and doc/config.texi..."
5573 test -e Makefile || echo "include $source_path/Makefile" > Makefile
5575 enabled stripping || strip="echo skipping strip"
5577 config_files="$TMPH config.mak doc/config.texi"
5579 cat > config.mak <<EOF
5580 # Automatically generated by configure - do not modify!
5581 ifndef FFMPEG_CONFIG_MAK
5583 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
5585 LIBDIR=\$(DESTDIR)$libdir
5586 SHLIBDIR=\$(DESTDIR)$shlibdir
5587 INCDIR=\$(DESTDIR)$incdir
5588 BINDIR=\$(DESTDIR)$bindir
5589 DATADIR=\$(DESTDIR)$datadir
5590 DOCDIR=\$(DESTDIR)$docdir
5591 MANDIR=\$(DESTDIR)$mandir
5592 SRC_PATH=$source_path
5593 ifndef MAIN_MAKEFILE
5594 SRC_PATH:=\$(SRC_PATH:.%=..%)
5598 INTRINSICS=$intrinsics
5604 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
5606 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
5635 LDEXEFLAGS=$LDEXEFLAGS
5636 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
5637 ASMSTRIPFLAGS=$ASMSTRIPFLAGS
5638 YASMFLAGS=$YASMFLAGS
5639 BUILDSUF=$build_suffix
5640 PROGSSUF=$progs_suffix
5648 EXTRA_VERSION=$extra_version
5651 CCDEP_FLAGS=$CCDEP_FLAGS
5653 ASDEP_FLAGS=$ASDEP_FLAGS
5654 CC_DEPFLAGS=$CC_DEPFLAGS
5655 AS_DEPFLAGS=$AS_DEPFLAGS
5658 HOSTCFLAGS=$host_cflags
5659 HOSTCPPFLAGS=$host_cppflags
5660 HOSTEXESUF=$HOSTEXESUF
5661 HOSTLDFLAGS=$host_ldflags
5664 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
5665 HOSTCCDEP=$HOSTCCDEP
5666 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
5667 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
5671 TARGET_EXEC=$target_exec $target_exec_args
5672 TARGET_PATH=$target_path
5673 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
5674 CFLAGS-ffplay=$sdl_cflags
5675 ZLIB=$($ldflags_filter -lz)
5676 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
5677 EXTRALIBS=$extralibs
5678 COMPAT_OBJS=$compat_objs
5681 LIBTARGET=${LIBTARGET}
5682 SLIBNAME=${SLIBNAME}
5683 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
5684 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
5685 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
5686 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
5687 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
5688 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
5689 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
5690 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
5691 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
5692 NOREDZONE_FLAGS=$noredzone_flags
5697 name=$(toupper $lcname)
5698 file=$source_path/$lcname/version.h
5699 eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
5700 enabled raise_major && eval ${name}_VERSION_MAJOR=$((${name}_VERSION_MAJOR+100))
5701 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
5702 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
5703 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
5704 eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
5707 map 'get_version $v' $LIBRARY_LIST
5709 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
5711 print_program_libs(){
5712 eval "program_libs=\$${1}_libs"
5713 eval echo "LIBS-${1}=${program_libs}" >> config.mak
5716 map 'print_program_libs $v' $PROGRAM_LIST
5719 /* Automatically generated by configure - do not modify! */
5720 #ifndef FFMPEG_CONFIG_H
5721 #define FFMPEG_CONFIG_H
5722 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
5723 #define FFMPEG_LICENSE "$(c_escape $license)"
5724 #define CONFIG_THIS_YEAR 2015
5725 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
5726 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
5727 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
5728 #define av_restrict $_restrict
5729 #define EXTERN_PREFIX "${extern_prefix}"
5730 #define EXTERN_ASM ${extern_prefix}
5731 #define BUILDSUF "$build_suffix"
5732 #define SLIBSUF "$SLIBSUF"
5733 #define HAVE_MMX2 HAVE_MMXEXT
5734 #define SWS_MAX_FILTER_SIZE $sws_max_filter_size
5737 test -n "$assert_level" &&
5738 echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
5740 test -n "$malloc_prefix" &&
5741 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
5743 if enabled yasm; then
5744 append config_files $TMPASM
5748 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
5753 echo "@c auto-generated by configure" > doc/config.texi
5755 print_config ARCH_ "$config_files" $ARCH_LIST
5756 print_config HAVE_ "$config_files" $HAVE_LIST
5757 print_config CONFIG_ "$config_files" $CONFIG_LIST \
5761 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
5762 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
5764 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
5765 cp_if_changed $TMPH config.h
5768 enabled yasm && cp_if_changed $TMPASM config.asm
5771 /* Generated by ffconf */
5772 #ifndef AVUTIL_AVCONFIG_H
5773 #define AVUTIL_AVCONFIG_H
5776 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
5778 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
5780 cp_if_changed $TMPH libavutil/avconfig.h
5782 if test -n "$WARNINGS"; then
5783 printf "\n$WARNINGS"
5784 enabled fatal_warnings && exit 1
5787 # build pkg-config files
5790 eval printf "\"lib${1}${build_suffix} >= \$LIB$(toupper ${1})_VERSION, \""
5793 pkgconfig_generate(){
5795 shortname=${name#lib}${build_suffix}
5799 requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
5800 requires=${requires%, }
5801 enabled ${name#lib} || return 0
5803 cat <<EOF > $name/$name${build_suffix}.pc
5805 exec_prefix=\${prefix}
5810 Description: $comment
5812 Requires: $(enabled shared || echo $requires)
5813 Requires.private: $(enabled shared && echo $requires)
5815 Libs: -L\${libdir} $(enabled rpath && echo "-Wl,-rpath,\${libdir}") -l${shortname} $(enabled shared || echo $libs)
5816 Libs.private: $(enabled shared && echo $libs)
5817 Cflags: -I\${includedir}
5820 mkdir -p doc/examples/pc-uninstalled
5821 includedir=${source_path}
5822 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
5823 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
5826 libdir=\${pcfiledir}/../../../$name
5827 includedir=${includedir}
5830 Description: $comment
5834 Libs: -L\${libdir} -Wl,-rpath,\${libdir} -l${shortname} $(enabled shared || echo $libs)
5835 Cflags: -I\${includedir}
5839 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBRT $LIBM"
5840 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
5841 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs"
5842 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs"
5843 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
5844 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" ""
5845 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
5846 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM"
5847 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM"