bd76da9d82300c33749af73af11df2c6243927c9
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
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."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$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   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
91   --enable-rpath           use rpath to allow installing libraries in paths
92                            not part of the dynamic linker search path
93                            use rpath when linking programs [USE WITH CARE]
94   --install-name-dir=DIR   Darwin directory name for installed targets
95
96 Licensing options:
97   --enable-gpl             allow use of GPL code, the resulting libs
98                            and binaries will be under GPL [no]
99   --enable-version3        upgrade (L)GPL to version 3 [no]
100   --enable-nonfree         allow use of nonfree code, the resulting libs
101                            and binaries will be unredistributable [no]
102
103 Configuration options:
104   --disable-static         do not build static libraries [no]
105   --enable-shared          build shared libraries [no]
106   --enable-small           optimize for size instead of speed
107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
108   --enable-gray            enable full grayscale support (slower color)
109   --disable-swscale-alpha  disable alpha channel support in swscale
110   --disable-all            disable building components, libraries and programs
111   --enable-raise-major     increase major version numbers in sonames [no]
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat 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 [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
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
150
151 Individual component options:
152   --disable-everything     disable all components listed below
153   --disable-encoder=NAME   disable encoder NAME
154   --enable-encoder=NAME    enable encoder NAME
155   --disable-encoders       disable all encoders
156   --disable-decoder=NAME   disable decoder NAME
157   --enable-decoder=NAME    enable decoder NAME
158   --disable-decoders       disable all decoders
159   --disable-hwaccel=NAME   disable hwaccel NAME
160   --enable-hwaccel=NAME    enable hwaccel NAME
161   --disable-hwaccels       disable all hwaccels
162   --disable-muxer=NAME     disable muxer NAME
163   --enable-muxer=NAME      enable muxer NAME
164   --disable-muxers         disable all muxers
165   --disable-demuxer=NAME   disable demuxer NAME
166   --enable-demuxer=NAME    enable demuxer NAME
167   --disable-demuxers       disable all demuxers
168   --enable-parser=NAME     enable parser NAME
169   --disable-parser=NAME    disable parser NAME
170   --disable-parsers        disable all parsers
171   --enable-bsf=NAME        enable bitstream filter NAME
172   --disable-bsf=NAME       disable bitstream filter NAME
173   --disable-bsfs           disable all bitstream filters
174   --enable-protocol=NAME   enable protocol NAME
175   --disable-protocol=NAME  disable protocol NAME
176   --disable-protocols      disable all protocols
177   --enable-indev=NAME      enable input device NAME
178   --disable-indev=NAME     disable input device NAME
179   --disable-indevs         disable input devices
180   --enable-outdev=NAME     enable output device NAME
181   --disable-outdev=NAME    disable output device NAME
182   --disable-outdevs        disable output devices
183   --disable-devices        disable all devices
184   --enable-filter=NAME     enable filter NAME
185   --disable-filter=NAME    disable filter NAME
186   --disable-filters        disable all filters
187
188 External library support:
189
190   Using any of the following switches will allow FFmpeg to link to the
191   corresponding external library. All the components depending on that library
192   will become enabled, if all their other dependencies are met and they are not
193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
194   libwavpack and allow the libwavpack encoder to be built, unless it is
195   specifically disabled with --disable-encoder=libwavpack.
196
197   Note that only the system libraries are auto-detected. All the other external
198   libraries must be explicitly enabled.
199
200   Also note that the following help text describes the purpose of the libraries
201   themselves, not all their features will necessarily be usable by FFmpeg.
202
203   --enable-avisynth        enable reading of AviSynth script files [no]
204   --disable-bzlib          disable bzlib [autodetect]
205   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
206   --enable-frei0r          enable frei0r video filtering [no]
207   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
208                            if openssl, librtmp or gmp is not used [no]
209   --enable-gmp             enable gmp, needed for rtmp(t)e support
210                            if openssl or librtmp is not used [no]
211   --enable-gnutls          enable gnutls, needed for https support
212                            if openssl is not used [no]
213   --disable-iconv          disable iconv [autodetect]
214   --enable-jni             enable JNI support [no]
215   --enable-ladspa          enable LADSPA audio filtering [no]
216   --enable-libass          enable libass subtitles rendering,
217                            needed for subtitles and ass filter [no]
218   --enable-libbluray       enable BluRay reading using libbluray [no]
219   --enable-libbs2b         enable bs2b DSP library [no]
220   --enable-libcaca         enable textual display using libcaca [no]
221   --enable-libcelt         enable CELT decoding via libcelt [no]
222   --enable-libcdio         enable audio CD grabbing with libcdio [no]
223   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
224                            and libraw1394 [no]
225   --enable-libebur128      enable libebur128 for EBU R128 measurement,
226                            needed for loudnorm filter [no]
227   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
228   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
229   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
230   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
231   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
232   --enable-libgme          enable Game Music Emu via libgme [no]
233   --enable-libgsm          enable GSM de/encoding via libgsm [no]
234   --enable-libiec61883     enable iec61883 via libiec61883 [no]
235   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
236   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
237   --enable-libmodplug      enable ModPlug via libmodplug [no]
238   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
239   --enable-libnut          enable NUT (de)muxing via libnut,
240                            native (de)muxer exists [no]
241   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
242   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
243   --enable-libopencv       enable video filtering via libopencv [no]
244   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
245   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
246   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
247   --enable-libopus         enable Opus de/encoding via libopus [no]
248   --enable-libpulse        enable Pulseaudio input via libpulse [no]
249   --enable-librubberband   enable rubberband needed for rubberband filter [no]
250   --enable-librtmp         enable RTMP[E] support via librtmp [no]
251   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
252   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
253   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
254   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
255   --enable-libsoxr         enable Include libsoxr resampling [no]
256   --enable-libspeex        enable Speex de/encoding via libspeex [no]
257   --enable-libssh          enable SFTP protocol via libssh [no]
258   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
259   --enable-libtheora       enable Theora encoding via libtheora [no]
260   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
261   --enable-libv4l2         enable libv4l2/v4l-utils [no]
262   --enable-libvidstab      enable video stabilization using vid.stab [no]
263   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
264   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
265                            native implementation exists [no]
266   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
267   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
268   --enable-libwebp         enable WebP encoding via libwebp [no]
269   --enable-libx264         enable H.264 encoding via x264 [no]
270   --enable-libx265         enable HEVC encoding via x265 [no]
271   --enable-libxavs         enable AVS encoding via xavs [no]
272   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
273   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
274   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
275   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
276   --enable-libxvid         enable Xvid encoding via xvidcore,
277                            native MPEG-4/Xvid encoder exists [no]
278   --enable-libzimg         enable z.lib, needed for zscale filter [no]
279   --enable-libzmq          enable message passing via libzmq [no]
280   --enable-libzvbi         enable teletext support via libzvbi [no]
281   --disable-lzma           disable lzma [autodetect]
282   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
283   --enable-mediacodec      enable Android MediaCodec support [no]
284   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
285   --enable-openal          enable OpenAL 1.1 capture support [no]
286   --enable-opencl          enable OpenCL code
287   --enable-opengl          enable OpenGL rendering [no]
288   --enable-openssl         enable openssl, needed for https support
289                            if gnutls is not used [no]
290   --disable-schannel       disable SChannel SSP, needed for TLS support on
291                            Windows if openssl and gnutls are not used [autodetect]
292   --disable-sdl2           disable sdl2 [autodetect]
293   --disable-securetransport disable Secure Transport, needed for TLS support
294                            on OSX if openssl and gnutls are not used [autodetect]
295   --enable-x11grab         enable X11 grabbing (legacy) [no]
296   --disable-xlib           disable xlib [autodetect]
297   --disable-zlib           disable zlib [autodetect]
298
299   The following libraries provide various hardware acceleration features:
300   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
301   --enable-cuda            enable dynamically linked Nvidia CUDA code [no]
302   --enable-cuvid           enable Nvidia CUVID support [autodetect]
303   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
304   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
305   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
306   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
307   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
308   --disable-nvenc          disable Nvidia video encoding code [autodetect]
309   --enable-omx             enable OpenMAX IL code [no]
310   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
311   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
312   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
313   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
314   --disable-videotoolbox   disable VideoToolbox code [autodetect]
315
316 Toolchain options:
317   --arch=ARCH              select architecture [$arch]
318   --cpu=CPU                select the minimum required CPU (affects
319                            instruction selection, may crash on older CPUs)
320   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
321   --progs-suffix=SUFFIX    program name suffix []
322   --enable-cross-compile   assume a cross-compiler is used
323   --sysroot=PATH           root of cross-build tree
324   --sysinclude=PATH        location of cross-build system headers
325   --target-os=OS           compiler targets OS [$target_os]
326   --target-exec=CMD        command to run executables on target
327   --target-path=DIR        path to view of build directory on target
328   --target-samples=DIR     path to samples directory on target
329   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
330   --toolchain=NAME         set tool defaults according to NAME
331   --nm=NM                  use nm tool NM [$nm_default]
332   --ar=AR                  use archive tool AR [$ar_default]
333   --as=AS                  use assembler AS [$as_default]
334   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
335   --strip=STRIP            use strip tool STRIP [$strip_default]
336   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
337   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
338   --cc=CC                  use C compiler CC [$cc_default]
339   --cxx=CXX                use C compiler CXX [$cxx_default]
340   --objcc=OCC              use ObjC compiler OCC [$cc_default]
341   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
342   --ld=LD                  use linker LD [$ld_default]
343   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
344   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
345   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
346   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
347   --host-cc=HOSTCC         use host C compiler HOSTCC
348   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
349   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
350   --host-ld=HOSTLD         use host linker HOSTLD
351   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
352   --host-libs=HLIBS        use libs HLIBS when linking for host
353   --host-os=OS             compiler host OS [$target_os]
354   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
355   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
356   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
357   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
358   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
359   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
360   --extra-libs=ELIBS       add ELIBS [$ELIBS]
361   --extra-version=STRING   version string suffix []
362   --optflags=OPTFLAGS      override optimization-related compiler flags
363   --build-suffix=SUFFIX    library name suffix []
364   --enable-pic             build position-independent code
365   --enable-thumb           compile for Thumb instruction set
366   --enable-lto             use link-time optimization
367   --env="ENV=override"     override the environment variables
368
369 Advanced options (experts only):
370   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
371   --custom-allocator=NAME  use a supported custom allocator
372   --disable-symver         disable symbol versioning
373   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
374   --disable-safe-bitstream-reader
375                            disable buffer boundary checking in bitreaders
376                            (faster, but may crash)
377   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
378   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
379
380 Optimization options (experts only):
381   --disable-asm            disable all assembly optimizations
382   --disable-altivec        disable AltiVec optimizations
383   --disable-vsx            disable VSX optimizations
384   --disable-power8         disable POWER8 optimizations
385   --disable-amd3dnow       disable 3DNow! optimizations
386   --disable-amd3dnowext    disable 3DNow! extended optimizations
387   --disable-mmx            disable MMX optimizations
388   --disable-mmxext         disable MMXEXT optimizations
389   --disable-sse            disable SSE optimizations
390   --disable-sse2           disable SSE2 optimizations
391   --disable-sse3           disable SSE3 optimizations
392   --disable-ssse3          disable SSSE3 optimizations
393   --disable-sse4           disable SSE4 optimizations
394   --disable-sse42          disable SSE4.2 optimizations
395   --disable-avx            disable AVX optimizations
396   --disable-xop            disable XOP optimizations
397   --disable-fma3           disable FMA3 optimizations
398   --disable-fma4           disable FMA4 optimizations
399   --disable-avx2           disable AVX2 optimizations
400   --disable-aesni          disable AESNI optimizations
401   --disable-armv5te        disable armv5te optimizations
402   --disable-armv6          disable armv6 optimizations
403   --disable-armv6t2        disable armv6t2 optimizations
404   --disable-vfp            disable VFP optimizations
405   --disable-neon           disable NEON optimizations
406   --disable-inline-asm     disable use of inline assembly
407   --disable-yasm           disable use of nasm/yasm assembly
408   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
409   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
410   --disable-msa            disable MSA optimizations
411   --disable-mipsfpu        disable floating point MIPS optimizations
412   --disable-mmi            disable Loongson SIMD optimizations
413   --disable-fast-unaligned consider unaligned accesses slow
414
415 Developer options (useful when working on FFmpeg itself):
416   --disable-debug          disable debugging symbols
417   --enable-debug=LEVEL     set the debug level [$debuglevel]
418   --disable-optimizations  disable compiler optimizations
419   --enable-extra-warnings  enable more compiler warnings
420   --disable-stripping      disable stripping of executables and shared libraries
421   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
422                            2 causes a slowdown at runtime.
423   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
424   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
425                            leaks and errors, using the specified valgrind binary.
426                            Cannot be combined with --target-exec
427   --enable-ftrapv          Trap arithmetic overflows
428   --samples=PATH           location of test samples for FATE, if not set use
429                            \$FATE_SAMPLES at make invocation time.
430   --enable-neon-clobber-test check NEON registers for clobbering (should be
431                            used only for debugging purposes)
432   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
433                            should be used only for debugging purposes)
434   --enable-random          randomly enable/disable components
435   --disable-random
436   --enable-random=LIST     randomly enable/disable specific components or
437   --disable-random=LIST    component groups. LIST is a comma-separated list
438                            of NAME[:PROB] entries where NAME is a component
439                            (group) and PROB the probability associated with
440                            NAME (default 0.5).
441   --random-seed=VALUE      seed value for --enable/disable-random
442   --disable-valgrind-backtrace do not print a backtrace under Valgrind
443                            (only applies to --disable-optimizations builds)
444
445 NOTE: Object files are built at the place where configure is launched.
446 EOF
447   exit 0
448 }
449
450 quotes='""'
451 if test -t 1 && which tput >/dev/null 2>&1; then
452     ncolors=$(tput colors)
453     if test -n "$ncolors" && test $ncolors -ge 8; then
454         bold_color=$(tput bold)
455         warn_color=$(tput setaf 3)
456         error_color=$(tput setaf 1)
457         reset_color=$(tput sgr0)
458     fi
459     # 72 used instead of 80 since that's the default of pr
460     ncols=$(tput cols)
461 fi
462 : ${ncols:=72}
463
464 log(){
465     echo "$@" >> $logfile
466 }
467
468 log_file(){
469     log BEGIN $1
470     pr -n -t $1 >> $logfile
471     log END $1
472 }
473
474 warn(){
475     log "WARNING: $*"
476     WARNINGS="${WARNINGS}WARNING: $*\n"
477 }
478
479 die(){
480     log "$@"
481     echo "$error_color$bold_color$@$reset_color"
482     cat <<EOF
483
484 If you think configure made a mistake, make sure you are using the latest
485 version from Git.  If the latest version fails, report the problem to the
486 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
487 EOF
488     if disabled logging; then
489         cat <<EOF
490 Rerun configure with logging enabled (do not use --disable-logging), and
491 include the log this produces with your report.
492 EOF
493     else
494         cat <<EOF
495 Include the log file "$logfile" produced by configure as this will help
496 solve the problem.
497 EOF
498     fi
499     exit 1
500 }
501
502 # Avoid locale weirdness, besides we really just want to translate ASCII.
503 toupper(){
504     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
505 }
506
507 tolower(){
508     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
509 }
510
511 c_escape(){
512     echo "$*" | sed 's/["\\]/\\\0/g'
513 }
514
515 sh_quote(){
516     v=$(echo "$1" | sed "s/'/'\\\\''/g")
517     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
518     echo "$v"
519 }
520
521 cleanws(){
522     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
523 }
524
525 filter(){
526     pat=$1
527     shift
528     for v; do
529         eval "case $v in $pat) echo $v ;; esac"
530     done
531 }
532
533 filter_out(){
534     pat=$1
535     shift
536     for v; do
537         eval "case $v in $pat) ;; *) echo $v ;; esac"
538     done
539 }
540
541 map(){
542     m=$1
543     shift
544     for v; do eval $m; done
545 }
546
547 add_suffix(){
548     suffix=$1
549     shift
550     for v; do echo ${v}${suffix}; done
551 }
552
553 set_all(){
554     value=$1
555     shift
556     for var in $*; do
557         eval $var=$value
558     done
559 }
560
561 set_weak(){
562     value=$1
563     shift
564     for var; do
565         eval : \${$var:=$value}
566     done
567 }
568
569 sanitize_var_name(){
570     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
571 }
572
573 set_safe(){
574     var=$1
575     shift
576     eval $(sanitize_var_name "$var")='$*'
577 }
578
579 get_safe(){
580     eval echo \$$(sanitize_var_name "$1")
581 }
582
583 pushvar(){
584     for pvar in $*; do
585         eval level=\${${pvar}_level:=0}
586         eval ${pvar}_${level}="\$$pvar"
587         eval ${pvar}_level=$(($level+1))
588     done
589 }
590
591 popvar(){
592     for pvar in $*; do
593         eval level=\${${pvar}_level:-0}
594         test $level = 0 && continue
595         eval level=$(($level-1))
596         eval $pvar="\${${pvar}_${level}}"
597         eval ${pvar}_level=$level
598         eval unset ${pvar}_${level}
599     done
600 }
601
602 enable(){
603     set_all yes $*
604 }
605
606 disable(){
607     set_all no $*
608 }
609
610 enable_weak(){
611     set_weak yes $*
612 }
613
614 disable_weak(){
615     set_weak no $*
616 }
617
618 enable_safe(){
619     for var; do
620         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
621     done
622 }
623
624 disable_safe(){
625     for var; do
626         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
627     done
628 }
629
630 do_enable_deep(){
631     for var; do
632         enabled $var && continue
633         eval sel="\$${var}_select"
634         eval sgs="\$${var}_suggest"
635         pushvar var sgs
636         enable_deep $sel
637         popvar sgs
638         enable_deep_weak $sgs
639         popvar var
640     done
641 }
642
643 enable_deep(){
644     do_enable_deep $*
645     enable $*
646 }
647
648 enable_deep_weak(){
649     for var; do
650         disabled $var && continue
651         pushvar var
652         do_enable_deep $var
653         popvar var
654         enable_weak $var
655     done
656 }
657
658 enabled(){
659     test "${1#!}" = "$1" && op='=' || op=!=
660     eval test "x\$${1#!}" $op "xyes"
661 }
662
663 disabled(){
664     test "${1#!}" = "$1" && op='=' || op=!=
665     eval test "x\$${1#!}" $op "xno"
666 }
667
668 enabled_all(){
669     for opt; do
670         enabled $opt || return 1
671     done
672 }
673
674 disabled_all(){
675     for opt; do
676         disabled $opt || return 1
677     done
678 }
679
680 enabled_any(){
681     for opt; do
682         enabled $opt && return 0
683     done
684 }
685
686 disabled_any(){
687     for opt; do
688         disabled $opt && return 0
689     done
690     return 1
691 }
692
693 set_default(){
694     for opt; do
695         eval : \${$opt:=\$${opt}_default}
696     done
697 }
698
699 is_in(){
700     value=$1
701     shift
702     for var in $*; do
703         [ $var = $value ] && return 0
704     done
705     return 1
706 }
707
708 do_check_deps(){
709     for cfg; do
710         cfg="${cfg#!}"
711         enabled ${cfg}_checking && die "Circular dependency for $cfg."
712         disabled ${cfg}_checking && continue
713         enable ${cfg}_checking
714         append allopts $cfg
715
716         eval dep_all="\$${cfg}_deps"
717         eval dep_any="\$${cfg}_deps_any"
718         eval dep_sel="\$${cfg}_select"
719         eval dep_sgs="\$${cfg}_suggest"
720         eval dep_ifa="\$${cfg}_if"
721         eval dep_ifn="\$${cfg}_if_any"
722
723         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
724         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
725         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
726
727         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
728         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
729         enabled_all  $dep_all || disable $cfg
730         enabled_any  $dep_any || disable $cfg
731         disabled_any $dep_sel && disable $cfg
732
733         if enabled $cfg; then
734             enable_deep $dep_sel
735             enable_deep_weak $dep_sgs
736         fi
737
738         disable ${cfg}_checking
739     done
740 }
741
742 check_deps(){
743     unset allopts
744
745     do_check_deps "$@"
746
747     for cfg in $allopts; do
748         enabled $cfg || continue
749         eval dep_extralibs="\$${cfg}_extralibs"
750         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
751     done
752 }
753
754 print_config(){
755     pfx=$1
756     files=$2
757     shift 2
758     map 'eval echo "$v \${$v:-no}"' "$@" |
759     awk "BEGIN { split(\"$files\", files) }
760         {
761             c = \"$pfx\" toupper(\$1);
762             v = \$2;
763             sub(/yes/, 1, v);
764             sub(/no/,  0, v);
765             for (f in files) {
766                 file = files[f];
767                 if (file ~ /\\.h\$/) {
768                     printf(\"#define %s %d\\n\", c, v) >>file;
769                 } else if (file ~ /\\.asm\$/) {
770                     printf(\"%%define %s %d\\n\", c, v) >>file;
771                 } else if (file ~ /\\.mak\$/) {
772                     n = -v ? \"\" : \"!\";
773                     printf(\"%s%s=yes\\n\", n, c) >>file;
774                 } else if (file ~ /\\.texi\$/) {
775                     pre = -v ? \"\" : \"@c \";
776                     yesno = \$2;
777                     c2 = tolower(c);
778                     gsub(/_/, \"-\", c2);
779                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
780                 }
781             }
782         }"
783 }
784
785 print_enabled(){
786     suf=$1
787     shift
788     for v; do
789         enabled $v && printf "%s\n" ${v%$suf}
790     done
791 }
792
793 append(){
794     var=$1
795     shift
796     eval "$var=\"\$$var $*\""
797 }
798
799 prepend(){
800     var=$1
801     shift
802     eval "$var=\"$* \$$var\""
803 }
804
805 unique(){
806     var=$1
807     uniq_list=""
808     for tok in $(eval echo \$$var); do
809         uniq_list="$(filter_out $tok $uniq_list) $tok"
810     done
811     eval "$var=\"${uniq_list}\""
812 }
813
814 add_cppflags(){
815     append CPPFLAGS "$@"
816 }
817
818 add_cflags(){
819     append CFLAGS $($cflags_filter "$@")
820 }
821
822 add_cxxflags(){
823     append CXXFLAGS $($cflags_filter "$@")
824 }
825
826 add_asflags(){
827     append ASFLAGS $($asflags_filter "$@")
828 }
829
830 add_objcflags(){
831     append OBJCFLAGS $($objcflags_filter "$@")
832 }
833
834 add_ldflags(){
835     append LDFLAGS $($ldflags_filter "$@")
836 }
837
838 add_ldexeflags(){
839     append LDEXEFLAGS $($ldflags_filter "$@")
840 }
841
842 add_ldlibflags(){
843     append LDLIBFLAGS $($ldflags_filter "$@")
844 }
845
846 add_stripflags(){
847     append ASMSTRIPFLAGS "$@"
848 }
849
850 add_extralibs(){
851     prepend extralibs $($ldflags_filter "$@")
852 }
853
854 add_host_cppflags(){
855     append host_cppflags "$@"
856 }
857
858 add_host_cflags(){
859     append host_cflags $($host_cflags_filter "$@")
860 }
861
862 add_host_ldflags(){
863     append host_ldflags $($host_ldflags_filter "$@")
864 }
865
866 add_compat(){
867     append compat_objs $1
868     shift
869     map 'add_cppflags -D$v' "$@"
870 }
871
872 check_cmd(){
873     log "$@"
874     "$@" >> $logfile 2>&1
875 }
876
877 check_stat(){
878     log check_stat "$@"
879     stat "$1" >> $logfile 2>&1
880 }
881
882 cc_o(){
883     eval printf '%s\\n' $CC_O
884 }
885
886 cc_e(){
887     eval printf '%s\\n' $CC_E
888 }
889
890 check_cc(){
891     log check_cc "$@"
892     cat > $TMPC
893     log_file $TMPC
894     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
895 }
896
897 check_cxx(){
898     log check_cxx "$@"
899     cat > $TMPCPP
900     log_file $TMPCPP
901     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
902 }
903
904 check_objcc(){
905     log check_objcc "$@"
906     cat > $TMPM
907     log_file $TMPM
908     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
909 }
910
911 check_cpp(){
912     log check_cpp "$@"
913     cat > $TMPC
914     log_file $TMPC
915     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
916 }
917
918 as_o(){
919     eval printf '%s\\n' $AS_O
920 }
921
922 check_as(){
923     log check_as "$@"
924     cat > $TMPS
925     log_file $TMPS
926     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
927 }
928
929 check_inline_asm(){
930     log check_inline_asm "$@"
931     name="$1"
932     code="$2"
933     shift 2
934     disable $name
935     check_cc "$@" <<EOF && enable $name
936 void foo(void){ __asm__ volatile($code); }
937 EOF
938 }
939
940 check_inline_asm_flags(){
941     log check_inline_asm_flags "$@"
942     name="$1"
943     code="$2"
944     flags=''
945     shift 2
946     while [ "$1" != "" ]; do
947       append flags $1
948       shift
949     done;
950     disable $name
951     cat > $TMPC <<EOF
952 void foo(void){ __asm__ volatile($code); }
953 EOF
954     log_file $TMPC
955     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
956     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
957 }
958
959 check_insn(){
960     log check_insn "$@"
961     check_inline_asm ${1}_inline "\"$2\""
962     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
963 }
964
965 check_yasm(){
966     log check_yasm "$@"
967     echo "$1" > $TMPS
968     log_file $TMPS
969     shift 1
970     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
971 }
972
973 ld_o(){
974     eval printf '%s\\n' $LD_O
975 }
976
977 check_ld(){
978     log check_ld "$@"
979     type=$1
980     shift 1
981     flags=$(filter_out '-l*|*.so' $@)
982     libs=$(filter '-l*|*.so' $@)
983     check_$type $($cflags_filter $flags) || return
984     flags=$($ldflags_filter $flags)
985     libs=$($ldflags_filter $libs)
986     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
987 }
988
989 print_include(){
990     hdr=$1
991     test "${hdr%.h}" = "${hdr}" &&
992         echo "#include $hdr"    ||
993         echo "#include <$hdr>"
994 }
995
996 check_code(){
997     log check_code "$@"
998     check=$1
999     headers=$2
1000     code=$3
1001     shift 3
1002     {
1003         for hdr in $headers; do
1004             print_include $hdr
1005         done
1006         echo "int main(void) { $code; return 0; }"
1007     } | check_$check "$@"
1008 }
1009
1010 check_cppflags(){
1011     log check_cppflags "$@"
1012     check_cc "$@" <<EOF && append CPPFLAGS "$@"
1013 int x;
1014 EOF
1015 }
1016
1017 test_cflags(){
1018     log test_cflags "$@"
1019     set -- $($cflags_filter "$@")
1020     check_cc "$@" <<EOF
1021 int x;
1022 EOF
1023 }
1024
1025 check_cflags(){
1026     log check_cflags "$@"
1027     test_cflags "$@" && add_cflags "$@"
1028 }
1029
1030 check_cxxflags(){
1031     log check_cxxflags "$@"
1032     set -- $($cflags_filter "$@")
1033     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1034 int x;
1035 EOF
1036 }
1037
1038 test_objcflags(){
1039     log test_cflags "$@"
1040     set -- $($cflags_filter "$@")
1041     check_objcc "$@" <<EOF
1042 int x;
1043 EOF
1044 }
1045
1046 check_objcflags(){
1047     log check_cflags "$@"
1048     test_objcflags "$@" && add_objcflags "$@"
1049 }
1050
1051 test_ldflags(){
1052     log test_ldflags "$@"
1053     check_ld "cc" "$@" <<EOF
1054 int main(void){ return 0; }
1055 EOF
1056 }
1057
1058 check_ldflags(){
1059     log check_ldflags "$@"
1060     test_ldflags "$@" && add_ldflags "$@"
1061 }
1062
1063 test_stripflags(){
1064     log test_stripflags "$@"
1065     # call check_cc to get a fresh TMPO
1066     check_cc <<EOF
1067 int main(void) { return 0; }
1068 EOF
1069     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1070 }
1071
1072 check_stripflags(){
1073     log check_stripflags "$@"
1074     test_stripflags "$@" && add_stripflags "$@"
1075 }
1076
1077 check_header(){
1078     log check_header "$@"
1079     header=$1
1080     shift
1081     disable_safe $header
1082     check_cpp "$@" <<EOF && enable_safe $header
1083 #include <$header>
1084 int x;
1085 EOF
1086 }
1087
1088 check_header_objcc(){
1089     log check_header_objcc "$@"
1090     rm -f -- "$TMPO"
1091     header=$1
1092     shift
1093     disable_safe $header
1094     {
1095        echo "#include <$header>"
1096        echo "int main(void) { return 0; }"
1097     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1098 }
1099
1100 check_func(){
1101     log check_func "$@"
1102     func=$1
1103     shift
1104     disable $func
1105     check_ld "cc" "$@" <<EOF && enable $func
1106 extern int $func();
1107 int main(void){ $func(); }
1108 EOF
1109 }
1110
1111 check_complexfunc(){
1112     log check_complexfunc "$@"
1113     func=$1
1114     narg=$2
1115     shift 2
1116     test $narg = 2 && args="f, g" || args="f * I"
1117     disable $func
1118     check_ld "cc" "$@" <<EOF && enable $func
1119 #include <complex.h>
1120 #include <math.h>
1121 float foo(complex float f, complex float g) { return $func($args); }
1122 int main(void){ return (int) foo; }
1123 EOF
1124 }
1125
1126 check_mathfunc(){
1127     log check_mathfunc "$@"
1128     func=$1
1129     narg=$2
1130     shift 2
1131     test $narg = 2 && args="f, g" || args="f"
1132     disable $func
1133     check_ld "cc" "$@" <<EOF && enable $func
1134 #include <math.h>
1135 float foo(float f, float g) { return $func($args); }
1136 int main(void){ return (int) foo; }
1137 EOF
1138 }
1139
1140 check_func_headers(){
1141     log check_func_headers "$@"
1142     headers=$1
1143     funcs=$2
1144     shift 2
1145     {
1146         for hdr in $headers; do
1147             print_include $hdr
1148         done
1149         for func in $funcs; do
1150             echo "long check_$func(void) { return (long) $func; }"
1151         done
1152         echo "int main(void) { return 0; }"
1153     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1154 }
1155
1156 check_class_headers_cpp(){
1157     log check_class_headers_cpp "$@"
1158     headers=$1
1159     classes=$2
1160     shift 2
1161     {
1162         for hdr in $headers; do
1163             echo "#include <$hdr>"
1164         done
1165         echo "int main(void) { "
1166         i=1
1167         for class in $classes; do
1168             echo "$class obj$i;"
1169             i=$(expr $i + 1)
1170         done
1171         echo "return 0; }"
1172     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1173 }
1174
1175 check_cpp_condition(){
1176     log check_cpp_condition "$@"
1177     header=$1
1178     condition=$2
1179     shift 2
1180     check_cpp "$@" <<EOF
1181 #include <$header>
1182 #if !($condition)
1183 #error "unsatisfied condition: $condition"
1184 #endif
1185 EOF
1186 }
1187
1188 check_lib(){
1189     log check_lib "$@"
1190     header="$1"
1191     func="$2"
1192     shift 2
1193     check_header $header && check_func $func "$@" && add_extralibs "$@"
1194 }
1195
1196 check_lib2(){
1197     log check_lib2 "$@"
1198     headers="$1"
1199     funcs="$2"
1200     shift 2
1201     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1202 }
1203
1204 check_lib_cpp(){
1205     log check_lib_cpp "$@"
1206     headers="$1"
1207     classes="$2"
1208     shift 2
1209     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1210 }
1211
1212 check_pkg_config(){
1213     log check_pkg_config "$@"
1214     pkgandversion="$1"
1215     pkg="${1%% *}"
1216     headers="$2"
1217     funcs="$3"
1218     shift 3
1219     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1220     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1221     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1222     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1223         set_safe "${pkg}_cflags" $pkg_cflags   &&
1224         set_safe "${pkg}_libs"   $pkg_libs
1225 }
1226
1227 check_exec(){
1228     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1229 }
1230
1231 check_exec_crash(){
1232     code=$(cat)
1233
1234     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1235     # are safe but may not be available everywhere.  Thus we use
1236     # raise(SIGTERM) instead.  The check is run in a subshell so we
1237     # can redirect the "Terminated" message from the shell.  SIGBUS
1238     # is not defined by standard C so it is used conditionally.
1239
1240     (check_exec "$@") >> $logfile 2>&1 <<EOF
1241 #include <signal.h>
1242 static void sighandler(int sig){
1243     raise(SIGTERM);
1244 }
1245 int foo(void){
1246     $code
1247 }
1248 int (*func_ptr)(void) = foo;
1249 int main(void){
1250     signal(SIGILL, sighandler);
1251     signal(SIGFPE, sighandler);
1252     signal(SIGSEGV, sighandler);
1253 #ifdef SIGBUS
1254     signal(SIGBUS, sighandler);
1255 #endif
1256     return func_ptr();
1257 }
1258 EOF
1259 }
1260
1261 check_type(){
1262     log check_type "$@"
1263     headers=$1
1264     type=$2
1265     shift 2
1266     disable_safe "$type"
1267     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1268 }
1269
1270 check_struct(){
1271     log check_struct "$@"
1272     headers=$1
1273     struct=$2
1274     member=$3
1275     shift 3
1276     disable_safe "${struct}_${member}"
1277     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1278         enable_safe "${struct}_${member}"
1279 }
1280
1281 check_builtin(){
1282     log check_builtin "$@"
1283     name=$1
1284     headers=$2
1285     builtin=$3
1286     shift 3
1287     disable "$name"
1288     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1289 }
1290
1291 check_compile_assert(){
1292     log check_compile_assert "$@"
1293     name=$1
1294     headers=$2
1295     condition=$3
1296     shift 3
1297     disable "$name"
1298     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1299 }
1300
1301 require(){
1302     name="$1"
1303     header="$2"
1304     func="$3"
1305     shift 3
1306     check_lib $header $func "$@" || die "ERROR: $name not found"
1307 }
1308
1309 require2(){
1310     name="$1"
1311     headers="$2"
1312     func="$3"
1313     shift 3
1314     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1315 }
1316
1317 require_cpp(){
1318     name="$1"
1319     headers="$2"
1320     classes="$3"
1321     shift 3
1322     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1323 }
1324
1325 use_pkg_config(){
1326     pkg="$1"
1327     check_pkg_config "$@" || return 1
1328     add_cflags    $(get_safe "${pkg}_cflags")
1329     add_extralibs $(get_safe "${pkg}_libs")
1330 }
1331
1332 require_pkg_config(){
1333     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1334 }
1335
1336 require_libfreetype(){
1337     log require_libfreetype "$@"
1338     pkg="freetype2"
1339     check_cmd $pkg_config --exists --print-errors $pkg \
1340       || die "ERROR: $pkg not found"
1341     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1342     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1343     {
1344         echo "#include <ft2build.h>"
1345         echo "#include FT_FREETYPE_H"
1346         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1347         echo "int main(void) { return 0; }"
1348     } | check_ld "cc" $pkg_cflags $pkg_libs \
1349       && set_safe "${pkg}_cflags" $pkg_cflags \
1350       && set_safe "${pkg}_libs"   $pkg_libs \
1351       || die "ERROR: $pkg not found"
1352     add_cflags    $(get_safe "${pkg}_cflags")
1353     add_extralibs $(get_safe "${pkg}_libs")
1354 }
1355
1356 hostcc_e(){
1357     eval printf '%s\\n' $HOSTCC_E
1358 }
1359
1360 hostcc_o(){
1361     eval printf '%s\\n' $HOSTCC_O
1362 }
1363
1364 check_host_cc(){
1365     log check_host_cc "$@"
1366     cat > $TMPC
1367     log_file $TMPC
1368     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1369 }
1370
1371 check_host_cpp(){
1372     log check_host_cpp "$@"
1373     cat > $TMPC
1374     log_file $TMPC
1375     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1376 }
1377
1378 check_host_cppflags(){
1379     log check_host_cppflags "$@"
1380     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1381 int x;
1382 EOF
1383 }
1384
1385 check_host_cflags(){
1386     log check_host_cflags "$@"
1387     set -- $($host_cflags_filter "$@")
1388     check_host_cc "$@" <<EOF && append host_cflags "$@"
1389 int x;
1390 EOF
1391 }
1392
1393 check_host_cpp_condition(){
1394     log check_host_cpp_condition "$@"
1395     header=$1
1396     condition=$2
1397     shift 2
1398     check_host_cpp "$@" <<EOF
1399 #include <$header>
1400 #if !($condition)
1401 #error "unsatisfied condition: $condition"
1402 #endif
1403 EOF
1404 }
1405
1406 cp_if_changed(){
1407     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1408     mkdir -p "$(dirname $2)"
1409     $cp_f "$1" "$2"
1410 }
1411
1412 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1413 # system-dependent things.
1414
1415 AVCODEC_COMPONENTS="
1416     bsfs
1417     decoders
1418     encoders
1419     hwaccels
1420     parsers
1421 "
1422
1423 AVDEVICE_COMPONENTS="
1424     indevs
1425     outdevs
1426 "
1427 AVFILTER_COMPONENTS="
1428     filters
1429 "
1430 AVFORMAT_COMPONENTS="
1431     demuxers
1432     muxers
1433     protocols
1434 "
1435
1436 AVRESAMPLE_COMPONENTS=""
1437 AVUTIL_COMPONENTS=""
1438
1439 COMPONENT_LIST="
1440     $AVCODEC_COMPONENTS
1441     $AVDEVICE_COMPONENTS
1442     $AVFILTER_COMPONENTS
1443     $AVFORMAT_COMPONENTS
1444     $AVRESAMPLE_COMPONENTS
1445     $AVUTIL_COMPONENTS
1446 "
1447
1448 EXAMPLE_LIST="
1449     avio_dir_cmd_example
1450     avio_reading_example
1451     decoding_encoding_example
1452     demuxing_decoding_example
1453     extract_mvs_example
1454     filter_audio_example
1455     filtering_audio_example
1456     filtering_video_example
1457     http_multiclient_example
1458     metadata_example
1459     muxing_example
1460     qsvdec_example
1461     remuxing_example
1462     resampling_audio_example
1463     scaling_video_example
1464     transcode_aac_example
1465     transcoding_example
1466 "
1467
1468 EXTERNAL_LIBRARY_LIST="
1469     avisynth
1470     bzlib
1471     chromaprint
1472     crystalhd
1473     decklink
1474     frei0r
1475     gcrypt
1476     gmp
1477     gnutls
1478     iconv
1479     jni
1480     ladspa
1481     libass
1482     libbluray
1483     libbs2b
1484     libcaca
1485     libcdio
1486     libcelt
1487     libdc1394
1488     libebur128
1489     libfdk_aac
1490     libflite
1491     libfontconfig
1492     libfreetype
1493     libfribidi
1494     libgme
1495     libgsm
1496     libiec61883
1497     libilbc
1498     libkvazaar
1499     libmodplug
1500     libmp3lame
1501     libnut
1502     libopencore_amrnb
1503     libopencore_amrwb
1504     libopencv
1505     libopenh264
1506     libopenjpeg
1507     libopenmpt
1508     libopus
1509     libpulse
1510     librtmp
1511     librubberband
1512     libschroedinger
1513     libshine
1514     libsmbclient
1515     libsnappy
1516     libsoxr
1517     libspeex
1518     libssh
1519     libtesseract
1520     libtheora
1521     libtwolame
1522     libv4l2
1523     libvidstab
1524     libvo_amrwbenc
1525     libvorbis
1526     libvpx
1527     libwavpack
1528     libwebp
1529     libx264
1530     libx265
1531     libxavs
1532     libxcb
1533     libxcb_shm
1534     libxcb_shape
1535     libxcb_xfixes
1536     libxvid
1537     libzimg
1538     libzmq
1539     libzvbi
1540     lzma
1541     mediacodec
1542     netcdf
1543     openal
1544     opencl
1545     opengl
1546     openssl
1547     schannel
1548     sdl
1549     sdl2
1550     securetransport
1551     videotoolbox
1552     x11grab
1553     xlib
1554     zlib
1555 "
1556
1557 HWACCEL_LIBRARY_LIST="
1558     audiotoolbox
1559     cuda
1560     cuvid
1561     d3d11va
1562     dxva2
1563     libmfx
1564     libnpp
1565     mmal
1566     nvenc
1567     omx
1568     vaapi
1569     vda
1570     vdpau
1571     videotoolbox_hwaccel
1572     xvmc
1573 "
1574
1575 DOCUMENT_LIST="
1576     doc
1577     htmlpages
1578     manpages
1579     podpages
1580     txtpages
1581 "
1582
1583 FEATURE_LIST="
1584     ftrapv
1585     gray
1586     hardcoded_tables
1587     omx_rpi
1588     runtime_cpudetect
1589     safe_bitstream_reader
1590     shared
1591     small
1592     static
1593     swscale_alpha
1594 "
1595
1596 LIBRARY_LIST="
1597     avcodec
1598     avdevice
1599     avfilter
1600     avformat
1601     avresample
1602     avutil
1603     postproc
1604     swresample
1605     swscale
1606 "
1607
1608 LICENSE_LIST="
1609     gpl
1610     nonfree
1611     version3
1612 "
1613
1614 PROGRAM_LIST="
1615     ffplay
1616     ffprobe
1617     ffserver
1618     ffmpeg
1619 "
1620
1621 SUBSYSTEM_LIST="
1622     dct
1623     dwt
1624     error_resilience
1625     faan
1626     fast_unaligned
1627     fft
1628     lsp
1629     lzo
1630     mdct
1631     pixelutils
1632     network
1633     rdft
1634 "
1635
1636 CONFIG_LIST="
1637     $COMPONENT_LIST
1638     $DOCUMENT_LIST
1639     $EXAMPLE_LIST
1640     $EXTERNAL_LIBRARY_LIST
1641     $HWACCEL_LIBRARY_LIST
1642     $FEATURE_LIST
1643     $LICENSE_LIST
1644     $LIBRARY_LIST
1645     $PROGRAM_LIST
1646     $SUBSYSTEM_LIST
1647     fontconfig
1648     incompatible_libav_abi
1649     memalign_hack
1650     memory_poisoning
1651     neon_clobber_test
1652     pic
1653     pod2man
1654     raise_major
1655     thumb
1656     valgrind_backtrace
1657     xmm_clobber_test
1658 "
1659
1660 THREADS_LIST="
1661     pthreads
1662     os2threads
1663     w32threads
1664 "
1665
1666 ATOMICS_LIST="
1667     atomics_gcc
1668     atomics_suncc
1669     atomics_win32
1670 "
1671
1672 ARCH_LIST="
1673     aarch64
1674     alpha
1675     arm
1676     avr32
1677     avr32_ap
1678     avr32_uc
1679     bfin
1680     ia64
1681     m68k
1682     mips
1683     mips64
1684     parisc
1685     ppc
1686     ppc64
1687     s390
1688     sh4
1689     sparc
1690     sparc64
1691     tilegx
1692     tilepro
1693     tomi
1694     x86
1695     x86_32
1696     x86_64
1697 "
1698
1699 ARCH_EXT_LIST_ARM="
1700     armv5te
1701     armv6
1702     armv6t2
1703     armv8
1704     neon
1705     vfp
1706     vfpv3
1707     setend
1708 "
1709
1710 ARCH_EXT_LIST_MIPS="
1711     mipsfpu
1712     mips32r2
1713     mips32r5
1714     mips64r2
1715     mips32r6
1716     mips64r6
1717     mipsdsp
1718     mipsdspr2
1719     msa
1720 "
1721
1722 ARCH_EXT_LIST_LOONGSON="
1723     loongson2
1724     loongson3
1725     mmi
1726 "
1727
1728 ARCH_EXT_LIST_X86_SIMD="
1729     aesni
1730     amd3dnow
1731     amd3dnowext
1732     avx
1733     avx2
1734     fma3
1735     fma4
1736     mmx
1737     mmxext
1738     sse
1739     sse2
1740     sse3
1741     sse4
1742     sse42
1743     ssse3
1744     xop
1745 "
1746
1747 ARCH_EXT_LIST_PPC="
1748     altivec
1749     dcbzl
1750     ldbrx
1751     power8
1752     ppc4xx
1753     vsx
1754 "
1755
1756 ARCH_EXT_LIST_X86="
1757     $ARCH_EXT_LIST_X86_SIMD
1758     cpunop
1759     i686
1760 "
1761
1762 ARCH_EXT_LIST="
1763     $ARCH_EXT_LIST_ARM
1764     $ARCH_EXT_LIST_PPC
1765     $ARCH_EXT_LIST_X86
1766     $ARCH_EXT_LIST_MIPS
1767     $ARCH_EXT_LIST_LOONGSON
1768 "
1769
1770 ARCH_FEATURES="
1771     aligned_stack
1772     fast_64bit
1773     fast_clz
1774     fast_cmov
1775     local_aligned_8
1776     local_aligned_16
1777     local_aligned_32
1778     simd_align_16
1779 "
1780
1781 BUILTIN_LIST="
1782     atomic_cas_ptr
1783     atomic_compare_exchange
1784     machine_rw_barrier
1785     MemoryBarrier
1786     mm_empty
1787     rdtsc
1788     sarestart
1789     sem_timedwait
1790     sync_val_compare_and_swap
1791 "
1792 HAVE_LIST_CMDLINE="
1793     inline_asm
1794     symver
1795     yasm
1796 "
1797
1798 HAVE_LIST_PUB="
1799     bigendian
1800     fast_unaligned
1801     incompatible_libav_abi
1802 "
1803
1804 HEADERS_LIST="
1805     alsa_asoundlib_h
1806     altivec_h
1807     arpa_inet_h
1808     asm_types_h
1809     cdio_paranoia_h
1810     cdio_paranoia_paranoia_h
1811     dispatch_dispatch_h
1812     dev_bktr_ioctl_bt848_h
1813     dev_bktr_ioctl_meteor_h
1814     dev_ic_bt8xx_h
1815     dev_video_bktr_ioctl_bt848_h
1816     dev_video_meteor_ioctl_meteor_h
1817     direct_h
1818     dirent_h
1819     dlfcn_h
1820     d3d11_h
1821     dxva_h
1822     ES2_gl_h
1823     gsm_h
1824     io_h
1825     mach_mach_time_h
1826     machine_ioctl_bt848_h
1827     machine_ioctl_meteor_h
1828     malloc_h
1829     opencv2_core_core_c_h
1830     openjpeg_2_1_openjpeg_h
1831     openjpeg_2_0_openjpeg_h
1832     openjpeg_1_5_openjpeg_h
1833     OpenGL_gl3_h
1834     poll_h
1835     sndio_h
1836     soundcard_h
1837     sys_mman_h
1838     sys_param_h
1839     sys_resource_h
1840     sys_select_h
1841     sys_soundcard_h
1842     sys_time_h
1843     sys_un_h
1844     sys_videoio_h
1845     termios_h
1846     udplite_h
1847     unistd_h
1848     valgrind_valgrind_h
1849     windows_h
1850     winsock2_h
1851 "
1852
1853 INTRINSICS_LIST="
1854     intrinsics_neon
1855 "
1856
1857 COMPLEX_FUNCS="
1858     cabs
1859     cexp
1860 "
1861
1862 MATH_FUNCS="
1863     atanf
1864     atan2f
1865     cbrt
1866     cbrtf
1867     copysign
1868     cosf
1869     erf
1870     exp2
1871     exp2f
1872     expf
1873     hypot
1874     isfinite
1875     isinf
1876     isnan
1877     ldexpf
1878     llrint
1879     llrintf
1880     log2
1881     log2f
1882     log10f
1883     lrint
1884     lrintf
1885     powf
1886     rint
1887     round
1888     roundf
1889     sinf
1890     trunc
1891     truncf
1892 "
1893
1894 SYSTEM_FUNCS="
1895     access
1896     aligned_malloc
1897     arc4random
1898     clock_gettime
1899     closesocket
1900     CommandLineToArgvW
1901     CoTaskMemFree
1902     CryptGenRandom
1903     dlopen
1904     fcntl
1905     flt_lim
1906     fork
1907     getaddrinfo
1908     gethrtime
1909     getopt
1910     GetProcessAffinityMask
1911     GetProcessMemoryInfo
1912     GetProcessTimes
1913     getrusage
1914     GetSystemTimeAsFileTime
1915     gettimeofday
1916     glob
1917     glXGetProcAddress
1918     gmtime_r
1919     inet_aton
1920     isatty
1921     jack_port_get_latency_range
1922     kbhit
1923     LoadLibrary
1924     localtime_r
1925     lstat
1926     lzo1x_999_compress
1927     mach_absolute_time
1928     MapViewOfFile
1929     memalign
1930     mkstemp
1931     mmap
1932     mprotect
1933     nanosleep
1934     PeekNamedPipe
1935     posix_memalign
1936     pthread_cancel
1937     sched_getaffinity
1938     SetConsoleTextAttribute
1939     SetConsoleCtrlHandler
1940     setmode
1941     setrlimit
1942     Sleep
1943     strerror_r
1944     sysconf
1945     sysctl
1946     usleep
1947     UTGetOSTypeFromString
1948     VirtualAlloc
1949     wglGetProcAddress
1950 "
1951
1952 TOOLCHAIN_FEATURES="
1953     as_dn_directive
1954     as_func
1955     as_object_arch
1956     asm_mod_q
1957     attribute_may_alias
1958     attribute_packed
1959     ebp_available
1960     ebx_available
1961     gnu_as
1962     gnu_windres
1963     ibm_asm
1964     inline_asm_direct_symbol_refs
1965     inline_asm_labels
1966     inline_asm_nonlocal_labels
1967     pragma_deprecated
1968     rsync_contimeout
1969     symver_asm_label
1970     symver_gnu_asm
1971     vfp_args
1972     xform_asm
1973     xmm_clobbers
1974 "
1975
1976 TYPES_LIST="
1977     CONDITION_VARIABLE_Ptr
1978     socklen_t
1979     struct_addrinfo
1980     struct_group_source_req
1981     struct_ip_mreq_source
1982     struct_ipv6_mreq
1983     struct_msghdr_msg_flags
1984     struct_pollfd
1985     struct_rusage_ru_maxrss
1986     struct_sctp_event_subscribe
1987     struct_sockaddr_in6
1988     struct_sockaddr_sa_len
1989     struct_sockaddr_storage
1990     struct_stat_st_mtim_tv_nsec
1991     struct_v4l2_frmivalenum_discrete
1992 "
1993
1994 HAVE_LIST="
1995     $ARCH_EXT_LIST
1996     $(add_suffix _external $ARCH_EXT_LIST)
1997     $(add_suffix _inline   $ARCH_EXT_LIST)
1998     $ARCH_FEATURES
1999     $ATOMICS_LIST
2000     $BUILTIN_LIST
2001     $COMPLEX_FUNCS
2002     $HAVE_LIST_CMDLINE
2003     $HAVE_LIST_PUB
2004     $HEADERS_LIST
2005     $INTRINSICS_LIST
2006     $MATH_FUNCS
2007     $SYSTEM_FUNCS
2008     $THREADS_LIST
2009     $TOOLCHAIN_FEATURES
2010     $TYPES_LIST
2011     atomics_native
2012     dos_paths
2013     dxva2_lib
2014     dxva2api_cobj
2015     libc_msvcrt
2016     libdc1394_1
2017     libdc1394_2
2018     makeinfo
2019     makeinfo_html
2020     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2021     perl
2022     pod2man
2023     sdl2
2024     section_data_rel_ro
2025     texi2html
2026     threads
2027     vaapi_drm
2028     vaapi_x11
2029     vdpau_x11
2030     winrt
2031     xlib
2032 "
2033
2034 # options emitted with CONFIG_ prefix but not available on the command line
2035 CONFIG_EXTRA="
2036     aandcttables
2037     ac3dsp
2038     audio_frame_queue
2039     audiodsp
2040     blockdsp
2041     bswapdsp
2042     cabac
2043     dirac_parse
2044     dvprofile
2045     exif
2046     faandct
2047     faanidct
2048     fdctdsp
2049     flacdsp
2050     fmtconvert
2051     frame_thread_encoder
2052     g722dsp
2053     golomb
2054     gplv3
2055     h263dsp
2056     h264chroma
2057     h264dsp
2058     h264pred
2059     h264qpel
2060     hpeldsp
2061     huffman
2062     huffyuvdsp
2063     huffyuvencdsp
2064     idctdsp
2065     iirfilter
2066     imdct15
2067     intrax8
2068     iso_media
2069     ividsp
2070     jpegtables
2071     lgplv3
2072     libx262
2073     llauddsp
2074     llviddsp
2075     lpc
2076     lzf
2077     me_cmp
2078     mpeg_er
2079     mpegaudio
2080     mpegaudiodsp
2081     mpegvideo
2082     mpegvideoenc
2083     mss34dsp
2084     pixblockdsp
2085     qpeldsp
2086     qsv
2087     qsvdec
2088     qsvenc
2089     rangecoder
2090     riffdec
2091     riffenc
2092     rtpdec
2093     rtpenc_chain
2094     rv34dsp
2095     sinewin
2096     snappy
2097     srtp
2098     startcode
2099     texturedsp
2100     texturedspenc
2101     tpeldsp
2102     vaapi_encode
2103     vc1dsp
2104     videodsp
2105     vp3dsp
2106     vp56dsp
2107     vp8dsp
2108     vt_bt2020
2109     wma_freqs
2110     wmv2dsp
2111 "
2112
2113 CMDLINE_SELECT="
2114     $ARCH_EXT_LIST
2115     $CONFIG_LIST
2116     $HAVE_LIST_CMDLINE
2117     $THREADS_LIST
2118     asm
2119     cross_compile
2120     debug
2121     extra_warnings
2122     logging
2123     lto
2124     optimizations
2125     rpath
2126     stripping
2127 "
2128
2129 PATHS_LIST="
2130     bindir
2131     datadir
2132     docdir
2133     incdir
2134     libdir
2135     mandir
2136     pkgconfigdir
2137     prefix
2138     shlibdir
2139     install_name_dir
2140 "
2141
2142 CMDLINE_SET="
2143     $PATHS_LIST
2144     ar
2145     arch
2146     as
2147     assert_level
2148     build_suffix
2149     cc
2150     objcc
2151     cpu
2152     cross_prefix
2153     custom_allocator
2154     cxx
2155     dep_cc
2156     doxygen
2157     env
2158     extra_version
2159     gas
2160     host_cc
2161     host_cflags
2162     host_ld
2163     host_ldflags
2164     host_libs
2165     host_os
2166     install
2167     ld
2168     ln_s
2169     logfile
2170     malloc_prefix
2171     nm
2172     optflags
2173     pkg_config
2174     pkg_config_flags
2175     progs_suffix
2176     random_seed
2177     ranlib
2178     samples
2179     strip
2180     sws_max_filter_size
2181     sysinclude
2182     sysroot
2183     target_exec
2184     target_os
2185     target_path
2186     target_samples
2187     tempprefix
2188     toolchain
2189     valgrind
2190     yasmexe
2191 "
2192
2193 CMDLINE_APPEND="
2194     extra_cflags
2195     extra_cxxflags
2196     extra_objcflags
2197     host_cppflags
2198 "
2199
2200 # code dependency declarations
2201
2202 # architecture extensions
2203
2204 armv5te_deps="arm"
2205 armv6_deps="arm"
2206 armv6t2_deps="arm"
2207 armv8_deps="aarch64"
2208 neon_deps_any="aarch64 arm"
2209 intrinsics_neon_deps="neon"
2210 vfp_deps_any="aarch64 arm"
2211 vfpv3_deps="vfp"
2212 setend_deps="arm"
2213
2214 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2215
2216 loongson2_deps="mips"
2217 loongson3_deps="mips"
2218 mipsfpu_deps="mips"
2219 mipsdsp_deps="mips"
2220 mipsdspr2_deps="mips"
2221 mips32r2_deps="mips"
2222 mips32r5_deps="mips"
2223 mips32r6_deps="mips"
2224 mips64r2_deps="mips"
2225 mips64r6_deps="mips"
2226 msa_deps="mipsfpu"
2227 mmi_deps="mips"
2228
2229 altivec_deps="ppc"
2230 dcbzl_deps="ppc"
2231 ldbrx_deps="ppc"
2232 ppc4xx_deps="ppc"
2233 vsx_deps="altivec"
2234 power8_deps="vsx"
2235
2236 cpunop_deps="i686"
2237 x86_64_select="i686"
2238 x86_64_suggest="fast_cmov"
2239
2240 amd3dnow_deps="mmx"
2241 amd3dnowext_deps="amd3dnow"
2242 i686_deps="x86"
2243 mmx_deps="x86"
2244 mmxext_deps="mmx"
2245 sse_deps="mmxext"
2246 sse2_deps="sse"
2247 sse3_deps="sse2"
2248 ssse3_deps="sse3"
2249 sse4_deps="ssse3"
2250 sse42_deps="sse4"
2251 aesni_deps="sse42"
2252 avx_deps="sse42"
2253 xop_deps="avx"
2254 fma3_deps="avx"
2255 fma4_deps="avx"
2256 avx2_deps="avx"
2257
2258 mmx_external_deps="yasm"
2259 mmx_inline_deps="inline_asm"
2260 mmx_suggest="mmx_external mmx_inline"
2261
2262 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2263     eval dep=\$${ext}_deps
2264     eval ${ext}_external_deps='"${dep}_external"'
2265     eval ${ext}_inline_deps='"${dep}_inline"'
2266     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2267 done
2268
2269 aligned_stack_if_any="aarch64 ppc x86"
2270 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2271 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2272 fast_unaligned_if_any="aarch64 ppc x86"
2273 simd_align_16_if_any="altivec neon sse"
2274
2275 # system capabilities
2276 symver_if_any="symver_asm_label symver_gnu_asm"
2277 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2278
2279 # threading support
2280 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2281 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2282 atomics_win32_if="MemoryBarrier"
2283 atomics_native_if_any="$ATOMICS_LIST"
2284 w32threads_deps="atomics_native"
2285 threads_if_any="$THREADS_LIST"
2286
2287 # subsystems
2288 dct_select="rdft"
2289 dirac_parse_select="golomb"
2290 error_resilience_select="me_cmp"
2291 faandct_deps="faan fdctdsp"
2292 faanidct_deps="faan idctdsp"
2293 h264dsp_select="startcode"
2294 frame_thread_encoder_deps="encoders threads"
2295 intrax8_select="blockdsp idctdsp"
2296 mdct_select="fft"
2297 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2298 mpeg_er_select="error_resilience"
2299 mpegaudio_select="mpegaudiodsp"
2300 mpegaudiodsp_select="dct"
2301 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2302 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2303 vc1dsp_select="h264chroma qpeldsp startcode"
2304 rdft_select="fft"
2305
2306 # decoders / encoders
2307 aac_decoder_select="imdct15 mdct sinewin"
2308 aac_fixed_decoder_select="mdct sinewin"
2309 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2310 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2311 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2312 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2313 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2314 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2315 adpcm_g722_decoder_select="g722dsp"
2316 adpcm_g722_encoder_select="g722dsp"
2317 aic_decoder_select="golomb idctdsp"
2318 alac_encoder_select="lpc"
2319 als_decoder_select="bswapdsp"
2320 amrnb_decoder_select="lsp"
2321 amrwb_decoder_select="lsp"
2322 amv_decoder_select="sp5x_decoder exif"
2323 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2324 ape_decoder_select="bswapdsp llauddsp"
2325 apng_decoder_select="zlib"
2326 apng_encoder_select="huffyuvencdsp zlib"
2327 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2328 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2329 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2330 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2331 atrac1_decoder_select="mdct sinewin"
2332 atrac3_decoder_select="mdct"
2333 atrac3p_decoder_select="mdct sinewin"
2334 avrn_decoder_select="exif jpegtables"
2335 bink_decoder_select="blockdsp hpeldsp"
2336 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2337 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2338 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2339 cllc_decoder_select="bswapdsp"
2340 comfortnoise_encoder_select="lpc"
2341 cook_decoder_select="audiodsp mdct sinewin"
2342 cscd_decoder_select="lzo"
2343 cscd_decoder_suggest="zlib"
2344 dca_decoder_select="mdct"
2345 dds_decoder_select="texturedsp"
2346 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2347 dnxhd_decoder_select="blockdsp idctdsp"
2348 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2349 dvvideo_decoder_select="dvprofile idctdsp"
2350 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2351 dxa_decoder_select="zlib"
2352 dxv_decoder_select="lzf texturedsp"
2353 eac3_decoder_select="ac3_decoder"
2354 eac3_encoder_select="ac3_encoder"
2355 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2356 eatgq_decoder_select="aandcttables"
2357 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2358 exr_decoder_select="zlib"
2359 ffv1_decoder_select="golomb rangecoder"
2360 ffv1_encoder_select="rangecoder"
2361 ffvhuff_decoder_select="huffyuv_decoder"
2362 ffvhuff_encoder_select="huffyuv_encoder"
2363 fic_decoder_select="golomb"
2364 flac_decoder_select="flacdsp golomb"
2365 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2366 flashsv2_decoder_select="zlib"
2367 flashsv2_encoder_select="zlib"
2368 flashsv_decoder_select="zlib"
2369 flashsv_encoder_select="zlib"
2370 flv_decoder_select="h263_decoder"
2371 flv_encoder_select="h263_encoder"
2372 fourxm_decoder_select="blockdsp bswapdsp"
2373 fraps_decoder_select="bswapdsp huffman"
2374 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2375 g729_decoder_select="audiodsp"
2376 h261_decoder_select="mpegvideo"
2377 h261_encoder_select="aandcttables mpegvideoenc"
2378 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2379 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2380 h263i_decoder_select="h263_decoder"
2381 h263p_decoder_select="h263_decoder"
2382 h263p_encoder_select="h263_encoder"
2383 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel videodsp"
2384 h264_decoder_suggest="error_resilience"
2385 hap_decoder_select="snappy texturedsp"
2386 hap_encoder_deps="libsnappy"
2387 hap_encoder_select="texturedspenc"
2388 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2389 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2390 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2391 iac_decoder_select="imc_decoder"
2392 imc_decoder_select="bswapdsp fft mdct sinewin"
2393 indeo3_decoder_select="hpeldsp"
2394 indeo4_decoder_select="ividsp"
2395 indeo5_decoder_select="ividsp"
2396 interplay_video_decoder_select="hpeldsp"
2397 jpegls_decoder_select="golomb mjpeg_decoder"
2398 jpegls_encoder_select="golomb"
2399 jv_decoder_select="blockdsp"
2400 lagarith_decoder_select="huffyuvdsp"
2401 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2402 loco_decoder_select="golomb"
2403 magicyuv_decoder_select="huffyuvdsp"
2404 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2405 metasound_decoder_select="lsp mdct sinewin"
2406 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2407 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2408 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2409 mjpegb_decoder_select="mjpeg_decoder"
2410 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2411 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2412 mlp_decoder_select="mlp_parser"
2413 motionpixels_decoder_select="bswapdsp"
2414 mp1_decoder_select="mpegaudio"
2415 mp1float_decoder_select="mpegaudio"
2416 mp2_decoder_select="mpegaudio"
2417 mp2float_decoder_select="mpegaudio"
2418 mp3_decoder_select="mpegaudio"
2419 mp3adu_decoder_select="mpegaudio"
2420 mp3adufloat_decoder_select="mpegaudio"
2421 mp3float_decoder_select="mpegaudio"
2422 mp3on4_decoder_select="mpegaudio"
2423 mp3on4float_decoder_select="mpegaudio"
2424 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2425 mpc8_decoder_select="mpegaudiodsp"
2426 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2427 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2428 mpegvideo_decoder_select="mpegvideo"
2429 mpeg1video_decoder_select="mpegvideo"
2430 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2431 mpeg2video_decoder_select="mpegvideo"
2432 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2433 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2434 mpeg4_encoder_select="h263_encoder"
2435 msa1_decoder_select="mss34dsp"
2436 msmpeg4v1_decoder_select="h263_decoder"
2437 msmpeg4v2_decoder_select="h263_decoder"
2438 msmpeg4v2_encoder_select="h263_encoder"
2439 msmpeg4v3_decoder_select="h263_decoder"
2440 msmpeg4v3_encoder_select="h263_encoder"
2441 mss2_decoder_select="vc1_decoder mpegvideo"
2442 mts2_decoder_select="mss34dsp"
2443 mxpeg_decoder_select="mjpeg_decoder"
2444 nellymoser_decoder_select="mdct sinewin"
2445 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2446 nuv_decoder_select="idctdsp lzo"
2447 on2avc_decoder_select="mdct"
2448 opus_decoder_deps="swresample"
2449 opus_decoder_select="imdct15"
2450 png_decoder_select="zlib"
2451 png_encoder_select="huffyuvencdsp zlib"
2452 prores_decoder_select="blockdsp idctdsp"
2453 prores_encoder_select="fdctdsp"
2454 qcelp_decoder_select="lsp"
2455 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2456 ra_144_decoder_select="audiodsp"
2457 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2458 ralf_decoder_select="golomb"
2459 rawvideo_decoder_select="bswapdsp"
2460 rscc_decoder_select="zlib"
2461 rtjpeg_decoder_select="me_cmp"
2462 rv10_decoder_select="h263_decoder"
2463 rv10_encoder_select="h263_encoder"
2464 rv20_decoder_select="h263_decoder"
2465 rv20_encoder_select="h263_encoder"
2466 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2467 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2468 screenpresso_decoder_select="zlib"
2469 shorten_decoder_select="golomb"
2470 sipr_decoder_select="lsp"
2471 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2472 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2473 sonic_decoder_select="golomb rangecoder"
2474 sonic_encoder_select="golomb rangecoder"
2475 sonic_ls_encoder_select="golomb rangecoder"
2476 sp5x_decoder_select="mjpeg_decoder"
2477 svq1_decoder_select="hpeldsp"
2478 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2479 svq3_decoder_select="golomb h264dsp h264pred hpeldsp tpeldsp videodsp"
2480 svq3_decoder_suggest="zlib"
2481 tak_decoder_select="audiodsp"
2482 tdsc_decoder_select="zlib mjpeg_decoder"
2483 theora_decoder_select="vp3_decoder"
2484 thp_decoder_select="mjpeg_decoder"
2485 tiff_decoder_suggest="zlib lzma"
2486 tiff_encoder_suggest="zlib"
2487 truehd_decoder_select="mlp_parser"
2488 truemotion2_decoder_select="bswapdsp"
2489 truespeech_decoder_select="bswapdsp"
2490 tscc_decoder_select="zlib"
2491 twinvq_decoder_select="mdct lsp sinewin"
2492 txd_decoder_select="texturedsp"
2493 utvideo_decoder_select="bswapdsp"
2494 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2495 vble_decoder_select="huffyuvdsp"
2496 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2497 vc1_qsv_decoder_deps="libmfx"
2498 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2499 vc1image_decoder_select="vc1_decoder"
2500 vorbis_decoder_select="mdct"
2501 vorbis_encoder_select="mdct"
2502 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2503 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2504 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2505 vp6a_decoder_select="vp6_decoder"
2506 vp6f_decoder_select="vp6_decoder"
2507 vp7_decoder_select="h264pred videodsp vp8dsp"
2508 vp8_decoder_select="h264pred videodsp vp8dsp"
2509 vp9_decoder_select="videodsp vp9_parser"
2510 webp_decoder_select="vp8_decoder exif"
2511 wmalossless_decoder_select="llauddsp"
2512 wmapro_decoder_select="mdct sinewin wma_freqs"
2513 wmav1_decoder_select="mdct sinewin wma_freqs"
2514 wmav1_encoder_select="mdct sinewin wma_freqs"
2515 wmav2_decoder_select="mdct sinewin wma_freqs"
2516 wmav2_encoder_select="mdct sinewin wma_freqs"
2517 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2518 wmv1_decoder_select="h263_decoder"
2519 wmv1_encoder_select="h263_encoder"
2520 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2521 wmv2_encoder_select="h263_encoder wmv2dsp"
2522 wmv3_decoder_select="vc1_decoder"
2523 wmv3image_decoder_select="wmv3_decoder"
2524 xma1_decoder_select="wmapro_decoder"
2525 xma2_decoder_select="wmapro_decoder"
2526 zerocodec_decoder_select="zlib"
2527 zlib_decoder_select="zlib"
2528 zlib_encoder_select="zlib"
2529 zmbv_decoder_select="zlib"
2530 zmbv_encoder_select="zlib"
2531
2532 # platform codecs
2533 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2534 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2535
2536 # hardware accelerators
2537 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2538 cuvid_deps="cuda"
2539 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2540 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2541 vaapi_deps="va_va_h"
2542 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2543 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2544 vda_deps="vda_framework pthreads"
2545 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2546 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2547 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2548 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2549 xvmc_deps="X11_extensions_XvMClib_h"
2550
2551 h263_cuvid_hwaccel_deps="cuda cuvid"
2552 h263_vaapi_hwaccel_deps="vaapi"
2553 h263_vaapi_hwaccel_select="h263_decoder"
2554 h263_videotoolbox_hwaccel_deps="videotoolbox"
2555 h263_videotoolbox_hwaccel_select="h263_decoder"
2556 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2557 h264_cuvid_hwaccel_deps="cuda cuvid"
2558 h264_d3d11va_hwaccel_deps="d3d11va"
2559 h264_d3d11va_hwaccel_select="h264_decoder"
2560 h264_dxva2_hwaccel_deps="dxva2"
2561 h264_dxva2_hwaccel_select="h264_decoder"
2562 h264_mediacodec_decoder_deps="mediacodec"
2563 h264_mediacodec_hwaccel_deps="mediacodec"
2564 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2565 h264_mmal_decoder_deps="mmal"
2566 h264_mmal_decoder_select="mmal"
2567 h264_mmal_hwaccel_deps="mmal"
2568 h264_omx_encoder_deps="omx"
2569 h264_qsv_hwaccel_deps="libmfx"
2570 h264_vaapi_hwaccel_deps="vaapi"
2571 h264_vaapi_hwaccel_select="h264_decoder"
2572 h264_vda_decoder_deps="vda"
2573 h264_vda_decoder_select="h264_decoder"
2574 h264_vda_hwaccel_deps="vda"
2575 h264_vda_hwaccel_select="h264_decoder"
2576 h264_vda_old_hwaccel_deps="vda"
2577 h264_vda_old_hwaccel_select="h264_decoder"
2578 h264_vdpau_decoder_deps="vdpau"
2579 h264_vdpau_decoder_select="h264_decoder"
2580 h264_vdpau_hwaccel_deps="vdpau"
2581 h264_vdpau_hwaccel_select="h264_decoder"
2582 h264_videotoolbox_hwaccel_deps="videotoolbox"
2583 h264_videotoolbox_hwaccel_select="h264_decoder"
2584 hevc_cuvid_hwaccel_deps="cuda cuvid"
2585 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2586 hevc_d3d11va_hwaccel_select="hevc_decoder"
2587 hevc_mediacodec_decoder_deps="mediacodec"
2588 hevc_mediacodec_hwaccel_deps="mediacodec"
2589 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2590 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2591 hevc_dxva2_hwaccel_select="hevc_decoder"
2592 hevc_qsv_hwaccel_deps="libmfx"
2593 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2594 hevc_vaapi_hwaccel_select="hevc_decoder"
2595 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2596 hevc_vdpau_hwaccel_select="hevc_decoder"
2597 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2598 mpeg_vdpau_decoder_deps="vdpau"
2599 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2600 mpeg_xvmc_hwaccel_deps="xvmc"
2601 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2602 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2603 mpeg1_vdpau_decoder_deps="vdpau"
2604 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2605 mpeg1_vdpau_hwaccel_deps="vdpau"
2606 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2607 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2608 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2609 mpeg1_xvmc_hwaccel_deps="xvmc"
2610 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2611 mpeg2_crystalhd_decoder_select="crystalhd"
2612 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2613 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2614 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2615 mpeg2_dxva2_hwaccel_deps="dxva2"
2616 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2617 mpeg2_mmal_decoder_deps="mmal"
2618 mpeg2_mmal_decoder_select="mmal"
2619 mpeg2_mmal_hwaccel_deps="mmal"
2620 mpeg2_qsv_hwaccel_deps="libmfx"
2621 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2622 mpeg2_vaapi_hwaccel_deps="vaapi"
2623 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2624 mpeg2_vdpau_hwaccel_deps="vdpau"
2625 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2626 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2627 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2628 mpeg2_xvmc_hwaccel_deps="xvmc"
2629 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2630 mpeg4_crystalhd_decoder_select="crystalhd"
2631 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2632 mpeg4_mediacodec_decoder_deps="mediacodec"
2633 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2634 mpeg4_mmal_decoder_deps="mmal"
2635 mpeg4_mmal_decoder_select="mmal"
2636 mpeg4_mmal_hwaccel_deps="mmal"
2637 mpeg4_omx_encoder_deps="omx"
2638 mpeg4_vaapi_hwaccel_deps="vaapi"
2639 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2640 mpeg4_vdpau_decoder_deps="vdpau"
2641 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2642 mpeg4_vdpau_hwaccel_deps="vdpau"
2643 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2644 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2645 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2646 msmpeg4_crystalhd_decoder_select="crystalhd"
2647 vc1_crystalhd_decoder_select="crystalhd"
2648 vc1_cuvid_hwaccel_deps="cuda cuvid"
2649 vc1_d3d11va_hwaccel_deps="d3d11va"
2650 vc1_d3d11va_hwaccel_select="vc1_decoder"
2651 vc1_dxva2_hwaccel_deps="dxva2"
2652 vc1_dxva2_hwaccel_select="vc1_decoder"
2653 vc1_mmal_decoder_deps="mmal"
2654 vc1_mmal_decoder_select="mmal"
2655 vc1_mmal_hwaccel_deps="mmal"
2656 vc1_qsv_hwaccel_deps="libmfx"
2657 vc1_qsv_hwaccel_select="qsvdec_vc1"
2658 vc1_vaapi_hwaccel_deps="vaapi"
2659 vc1_vaapi_hwaccel_select="vc1_decoder"
2660 vc1_vdpau_decoder_deps="vdpau"
2661 vc1_vdpau_decoder_select="vc1_decoder"
2662 vc1_vdpau_hwaccel_deps="vdpau"
2663 vc1_vdpau_hwaccel_select="vc1_decoder"
2664 vp8_cuvid_hwaccel_deps="cuda cuvid"
2665 vp9_cuvid_hwaccel_deps="cuda cuvid"
2666 vp8_mediacodec_decoder_deps="mediacodec"
2667 vp8_mediacodec_hwaccel_deps="mediacodec"
2668 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2669 vp9_d3d11va_hwaccel_select="vp9_decoder"
2670 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2671 vp9_dxva2_hwaccel_select="vp9_decoder"
2672 vp9_mediacodec_decoder_deps="mediacodec"
2673 vp9_mediacodec_hwaccel_deps="mediacodec"
2674 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2675 vp9_vaapi_hwaccel_select="vp9_decoder"
2676 wmv3_crystalhd_decoder_select="crystalhd"
2677 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2678 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2679 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2680 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2681 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2682
2683 # hardware-accelerated codecs
2684 omx_deps="dlopen pthreads"
2685 omx_extralibs='$ldl'
2686 qsvdec_select="qsv"
2687 qsvenc_select="qsv"
2688 vaapi_encode_deps="vaapi"
2689
2690 hwupload_cuda_filter_deps="cuda"
2691 scale_npp_filter_deps="cuda libnpp"
2692
2693 nvenc_deps_any="dlopen LoadLibrary"
2694 nvenc_encoder_deps="nvenc"
2695 h263_cuvid_decoder_deps="cuda cuvid"
2696 h263_cuvid_decoder_select="h263_cuvid_hwaccel"
2697 h264_cuvid_decoder_deps="cuda cuvid"
2698 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2699 h264_nvenc_encoder_deps="nvenc"
2700 h264_qsv_decoder_deps="libmfx"
2701 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2702 h264_qsv_encoder_deps="libmfx"
2703 h264_qsv_encoder_select="qsvenc"
2704 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2705 h264_vaapi_encoder_select="vaapi_encode golomb"
2706
2707 hevc_cuvid_decoder_deps="cuda cuvid"
2708 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2709 hevc_nvenc_encoder_deps="nvenc"
2710 hevc_qsv_decoder_deps="libmfx"
2711 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2712 hevc_qsv_encoder_deps="libmfx"
2713 hevc_qsv_encoder_select="qsvenc"
2714 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2715 hevc_vaapi_encoder_select="vaapi_encode golomb"
2716 mjpeg_cuvid_decoder_deps="cuda cuvid"
2717 mjpeg_cuvid_decoder_select="mjpeg_cuvid_hwaccel"
2718 mpeg1_cuvid_decoder_deps="cuda cuvid"
2719 mpeg1_cuvid_decoder_select="mpeg1_cuvid_hwaccel"
2720 mpeg2_cuvid_decoder_deps="cuda cuvid"
2721 mpeg2_cuvid_decoder_select="mpeg2_cuvid_hwaccel"
2722 mpeg2_qsv_decoder_deps="libmfx"
2723 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2724 mpeg2_qsv_encoder_deps="libmfx"
2725 mpeg2_qsv_encoder_select="qsvenc"
2726 mpeg4_cuvid_decoder_deps="cuda cuvid"
2727 mpeg4_cuvid_decoder_select="mpeg4_cuvid_hwaccel"
2728 nvenc_h264_encoder_deps="nvenc"
2729 nvenc_hevc_encoder_deps="nvenc"
2730
2731 vc1_cuvid_decoder_deps="cuda cuvid"
2732 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2733 vp8_cuvid_decoder_deps="cuda cuvid"
2734 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2735 vp9_cuvid_decoder_deps="cuda cuvid"
2736 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2737
2738 # parsers
2739 h264_parser_select="golomb h264dsp"
2740 hevc_parser_select="golomb"
2741 mpegvideo_parser_select="mpegvideo"
2742 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2743 vc1_parser_select="vc1dsp"
2744
2745 # bitstream_filters
2746 mjpeg2jpeg_bsf_select="jpegtables"
2747
2748 # external libraries
2749 aac_at_decoder_deps="audiotoolbox"
2750 ac3_at_decoder_deps="audiotoolbox"
2751 ac3_at_decoder_select="ac3_parser"
2752 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2753 alac_at_decoder_deps="audiotoolbox"
2754 amr_nb_at_decoder_deps="audiotoolbox"
2755 eac3_at_decoder_deps="audiotoolbox"
2756 eac3_at_decoder_select="ac3_parser"
2757 gsm_ms_at_decoder_deps="audiotoolbox"
2758 ilbc_at_decoder_deps="audiotoolbox"
2759 mp1_at_decoder_deps="audiotoolbox"
2760 mp2_at_decoder_deps="audiotoolbox"
2761 mp3_at_decoder_deps="audiotoolbox"
2762 pcm_alaw_at_decoder_deps="audiotoolbox"
2763 pcm_mulaw_at_decoder_deps="audiotoolbox"
2764 qdmc_at_decoder_deps="audiotoolbox"
2765 qdm2_at_decoder_deps="audiotoolbox"
2766 aac_at_encoder_deps="audiotoolbox"
2767 aac_at_encoder_select="audio_frame_queue"
2768 alac_at_encoder_deps="audiotoolbox"
2769 alac_at_encoder_select="audio_frame_queue"
2770 ilbc_at_encoder_deps="audiotoolbox"
2771 ilbc_at_encoder_select="audio_frame_queue"
2772 pcm_alaw_at_encoder_deps="audiotoolbox"
2773 pcm_alaw_at_encoder_select="audio_frame_queue"
2774 pcm_mulaw_at_encoder_deps="audiotoolbox"
2775 pcm_mulaw_at_encoder_select="audio_frame_queue"
2776 chromaprint_muxer_deps="chromaprint"
2777 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2778 libcelt_decoder_deps="libcelt"
2779 libfdk_aac_decoder_deps="libfdk_aac"
2780 libfdk_aac_encoder_deps="libfdk_aac"
2781 libfdk_aac_encoder_select="audio_frame_queue"
2782 libgme_demuxer_deps="libgme"
2783 libgsm_decoder_deps="libgsm"
2784 libgsm_encoder_deps="libgsm"
2785 libgsm_ms_decoder_deps="libgsm"
2786 libgsm_ms_encoder_deps="libgsm"
2787 libilbc_decoder_deps="libilbc"
2788 libilbc_encoder_deps="libilbc"
2789 libkvazaar_encoder_deps="libkvazaar"
2790 libmodplug_demuxer_deps="libmodplug"
2791 libmp3lame_encoder_deps="libmp3lame"
2792 libmp3lame_encoder_select="audio_frame_queue"
2793 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2794 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2795 libopencore_amrnb_encoder_select="audio_frame_queue"
2796 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2797 libopenh264_decoder_deps="libopenh264"
2798 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2799 libopenh264_encoder_deps="libopenh264"
2800 libopenjpeg_decoder_deps="libopenjpeg"
2801 libopenjpeg_encoder_deps="libopenjpeg"
2802 libopenmpt_demuxer_deps="libopenmpt"
2803 libopus_decoder_deps="libopus"
2804 libopus_encoder_deps="libopus"
2805 libopus_encoder_select="audio_frame_queue"
2806 libschroedinger_decoder_deps="libschroedinger"
2807 libschroedinger_encoder_deps="libschroedinger"
2808 libshine_encoder_deps="libshine"
2809 libshine_encoder_select="audio_frame_queue"
2810 libspeex_decoder_deps="libspeex"
2811 libspeex_encoder_deps="libspeex"
2812 libspeex_encoder_select="audio_frame_queue"
2813 libtheora_encoder_deps="libtheora"
2814 libtwolame_encoder_deps="libtwolame"
2815 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2816 libvorbis_decoder_deps="libvorbis"
2817 libvorbis_encoder_deps="libvorbis"
2818 libvorbis_encoder_select="audio_frame_queue"
2819 libvpx_vp8_decoder_deps="libvpx"
2820 libvpx_vp8_encoder_deps="libvpx"
2821 libvpx_vp9_decoder_deps="libvpx"
2822 libvpx_vp9_encoder_deps="libvpx"
2823 libwavpack_encoder_deps="libwavpack"
2824 libwebp_encoder_deps="libwebp"
2825 libwebp_anim_encoder_deps="libwebp"
2826 libx262_encoder_deps="libx262"
2827 libx264_encoder_deps="libx264"
2828 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2829 libx264rgb_encoder_select="libx264_encoder"
2830 libx265_encoder_deps="libx265"
2831 libxavs_encoder_deps="libxavs"
2832 libxvid_encoder_deps="libxvid"
2833 libzvbi_teletext_decoder_deps="libzvbi"
2834 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2835 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2836 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2837 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2838 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2839
2840 # demuxers / muxers
2841 ac3_demuxer_select="ac3_parser"
2842 asf_demuxer_select="riffdec"
2843 asf_o_demuxer_select="riffdec"
2844 asf_muxer_select="riffenc"
2845 asf_stream_muxer_select="asf_muxer"
2846 avi_demuxer_select="iso_media riffdec exif"
2847 avi_muxer_select="riffenc"
2848 avisynth_demuxer_deps="avisynth"
2849 avisynth_demuxer_select="riffdec"
2850 caf_demuxer_select="iso_media riffdec"
2851 dash_muxer_select="mp4_muxer"
2852 dirac_demuxer_select="dirac_parser"
2853 dts_demuxer_select="dca_parser"
2854 dtshd_demuxer_select="dca_parser"
2855 dv_demuxer_select="dvprofile"
2856 dv_muxer_select="dvprofile"
2857 dxa_demuxer_select="riffdec"
2858 eac3_demuxer_select="ac3_parser"
2859 f4v_muxer_select="mov_muxer"
2860 fifo_muxer_deps="threads"
2861 flac_demuxer_select="flac_parser"
2862 hds_muxer_select="flv_muxer"
2863 hls_muxer_select="mpegts_muxer"
2864 image2_alias_pix_demuxer_select="image2_demuxer"
2865 image2_brender_pix_demuxer_select="image2_demuxer"
2866 ipod_muxer_select="mov_muxer"
2867 ismv_muxer_select="mov_muxer"
2868 libnut_demuxer_deps="libnut"
2869 libnut_muxer_deps="libnut"
2870 matroska_audio_muxer_select="matroska_muxer"
2871 matroska_demuxer_select="iso_media riffdec"
2872 matroska_demuxer_suggest="bzlib lzo zlib"
2873 matroska_muxer_select="iso_media riffenc"
2874 mmf_muxer_select="riffenc"
2875 mov_demuxer_select="iso_media riffdec"
2876 mov_demuxer_suggest="zlib"
2877 mov_muxer_select="iso_media riffenc rtpenc_chain"
2878 mp3_demuxer_select="mpegaudio_parser"
2879 mp4_muxer_select="mov_muxer"
2880 mpegts_demuxer_select="iso_media"
2881 mpegts_muxer_select="adts_muxer latm_muxer"
2882 mpegtsraw_demuxer_select="mpegts_demuxer"
2883 mxf_d10_muxer_select="mxf_muxer"
2884 mxf_opatom_muxer_select="mxf_muxer"
2885 nut_muxer_select="riffenc"
2886 nuv_demuxer_select="riffdec"
2887 oga_muxer_select="ogg_muxer"
2888 ogg_demuxer_select="dirac_parse"
2889 ogv_muxer_select="ogg_muxer"
2890 opus_muxer_select="ogg_muxer"
2891 psp_muxer_select="mov_muxer"
2892 rtp_demuxer_select="sdp_demuxer"
2893 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2894 rtsp_demuxer_select="http_protocol rtpdec"
2895 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2896 sap_demuxer_select="sdp_demuxer"
2897 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2898 sdp_demuxer_select="rtpdec"
2899 smoothstreaming_muxer_select="ismv_muxer"
2900 spdif_muxer_select="aac_parser"
2901 spx_muxer_select="ogg_muxer"
2902 swf_demuxer_suggest="zlib"
2903 tak_demuxer_select="tak_parser"
2904 tg2_muxer_select="mov_muxer"
2905 tgp_muxer_select="mov_muxer"
2906 vobsub_demuxer_select="mpegps_demuxer"
2907 w64_demuxer_select="wav_demuxer"
2908 w64_muxer_select="wav_muxer"
2909 wav_demuxer_select="riffdec"
2910 wav_muxer_select="riffenc"
2911 webm_muxer_select="iso_media riffenc"
2912 webm_dash_manifest_demuxer_select="matroska_demuxer"
2913 wtv_demuxer_select="mpegts_demuxer riffdec"
2914 wtv_muxer_select="mpegts_muxer riffenc"
2915 xmv_demuxer_select="riffdec"
2916 xwma_demuxer_select="riffdec"
2917
2918 # indevs / outdevs
2919 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2920 alsa_outdev_deps="alsa_asoundlib_h"
2921 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2922 avfoundation_indev_select="avfoundation"
2923 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2924 caca_outdev_deps="libcaca"
2925 decklink_indev_deps="decklink pthreads"
2926 decklink_indev_extralibs="-lstdc++"
2927 decklink_outdev_deps="decklink pthreads"
2928 decklink_outdev_extralibs="-lstdc++"
2929 dshow_indev_deps="IBaseFilter"
2930 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2931 dv1394_indev_deps="dv1394"
2932 dv1394_indev_select="dv_demuxer"
2933 fbdev_indev_deps="linux_fb_h"
2934 fbdev_outdev_deps="linux_fb_h"
2935 gdigrab_indev_deps="CreateDIBSection"
2936 gdigrab_indev_extralibs="-lgdi32"
2937 gdigrab_indev_select="bmp_decoder"
2938 iec61883_indev_deps="libiec61883"
2939 jack_indev_deps="jack_jack_h"
2940 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2941 lavfi_indev_deps="avfilter"
2942 libcdio_indev_deps="libcdio"
2943 libdc1394_indev_deps="libdc1394"
2944 libv4l2_indev_deps="libv4l2"
2945 openal_indev_deps="openal"
2946 opengl_outdev_deps="opengl"
2947 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2948 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2949 pulse_indev_deps="libpulse"
2950 pulse_outdev_deps="libpulse"
2951 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2952 qtkit_indev_select="qtkit"
2953 sdl2_outdev_deps="sdl2"
2954 sndio_indev_deps="sndio_h"
2955 sndio_outdev_deps="sndio_h"
2956 v4l_indev_deps="linux_videodev_h"
2957 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2958 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2959 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2960 vfwcap_indev_extralibs="-lavicap32"
2961 x11grab_indev_deps="x11grab"
2962 x11grab_xcb_indev_deps="libxcb"
2963 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2964 xv_outdev_extralibs="-lXv -lX11 -lXext"
2965
2966 # protocols
2967 async_protocol_deps="threads"
2968 bluray_protocol_deps="libbluray"
2969 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2970 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2971 ffrtmpcrypt_protocol_select="tcp_protocol"
2972 ffrtmphttp_protocol_deps="!librtmp_protocol"
2973 ffrtmphttp_protocol_select="http_protocol"
2974 ftp_protocol_select="tcp_protocol"
2975 gopher_protocol_select="network"
2976 http_protocol_select="tcp_protocol"
2977 httpproxy_protocol_select="tcp_protocol"
2978 https_protocol_select="tls_protocol"
2979 icecast_protocol_select="http_protocol"
2980 librtmp_protocol_deps="librtmp"
2981 librtmpe_protocol_deps="librtmp"
2982 librtmps_protocol_deps="librtmp"
2983 librtmpt_protocol_deps="librtmp"
2984 librtmpte_protocol_deps="librtmp"
2985 libsmbclient_protocol_deps="libsmbclient gplv3"
2986 libssh_protocol_deps="libssh"
2987 mmsh_protocol_select="http_protocol"
2988 mmst_protocol_select="network"
2989 rtmp_protocol_deps="!librtmp_protocol"
2990 rtmp_protocol_select="tcp_protocol"
2991 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2992 rtmps_protocol_deps="!librtmp_protocol"
2993 rtmps_protocol_select="tls_protocol"
2994 rtmpt_protocol_select="ffrtmphttp_protocol"
2995 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2996 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2997 rtp_protocol_select="udp_protocol"
2998 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
2999 sctp_protocol_select="network"
3000 srtp_protocol_select="rtp_protocol srtp"
3001 tcp_protocol_select="network"
3002 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3003 tls_gnutls_protocol_select="tcp_protocol"
3004 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3005 tls_openssl_protocol_select="tcp_protocol"
3006 tls_schannel_protocol_deps="schannel"
3007 tls_schannel_protocol_select="tcp_protocol"
3008 tls_securetransport_protocol_deps="securetransport"
3009 tls_securetransport_protocol_select="tcp_protocol"
3010 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3011 udp_protocol_select="network"
3012 udplite_protocol_select="network"
3013 unix_protocol_deps="sys_un_h"
3014 unix_protocol_select="network"
3015
3016 # filters
3017 afftfilt_filter_deps="avcodec"
3018 afftfilt_filter_select="fft"
3019 amovie_filter_deps="avcodec avformat"
3020 aresample_filter_deps="swresample"
3021 ass_filter_deps="libass"
3022 asyncts_filter_deps="avresample"
3023 atempo_filter_deps="avcodec"
3024 atempo_filter_select="rdft"
3025 azmq_filter_deps="libzmq"
3026 blackframe_filter_deps="gpl"
3027 boxblur_filter_deps="gpl"
3028 bs2b_filter_deps="libbs2b"
3029 colormatrix_filter_deps="gpl"
3030 cover_rect_filter_deps="avcodec avformat gpl"
3031 cropdetect_filter_deps="gpl"
3032 delogo_filter_deps="gpl"
3033 deshake_filter_select="pixelutils"
3034 drawtext_filter_deps="libfreetype"
3035 ebur128_filter_deps="gpl"
3036 eq_filter_deps="gpl"
3037 fftfilt_filter_deps="avcodec"
3038 fftfilt_filter_select="rdft"
3039 find_rect_filter_deps="avcodec avformat gpl"
3040 firequalizer_filter_deps="avcodec"
3041 firequalizer_filter_select="rdft"
3042 flite_filter_deps="libflite"
3043 framerate_filter_select="pixelutils"
3044 frei0r_filter_deps="frei0r dlopen"
3045 frei0r_src_filter_deps="frei0r dlopen"
3046 fspp_filter_deps="gpl"
3047 geq_filter_deps="gpl"
3048 histeq_filter_deps="gpl"
3049 hqdn3d_filter_deps="gpl"
3050 interlace_filter_deps="gpl"
3051 kerndeint_filter_deps="gpl"
3052 ladspa_filter_deps="ladspa dlopen"
3053 loudnorm_filter_deps="libebur128"
3054 mcdeint_filter_deps="avcodec gpl"
3055 movie_filter_deps="avcodec avformat"
3056 mpdecimate_filter_deps="gpl"
3057 mpdecimate_filter_select="pixelutils"
3058 mptestsrc_filter_deps="gpl"
3059 negate_filter_deps="lut_filter"
3060 nnedi_filter_deps="gpl"
3061 ocr_filter_deps="libtesseract"
3062 ocv_filter_deps="libopencv"
3063 owdenoise_filter_deps="gpl"
3064 pan_filter_deps="swresample"
3065 perspective_filter_deps="gpl"
3066 phase_filter_deps="gpl"
3067 pp7_filter_deps="gpl"
3068 pp_filter_deps="gpl postproc"
3069 pullup_filter_deps="gpl"
3070 removelogo_filter_deps="avcodec avformat swscale"
3071 repeatfields_filter_deps="gpl"
3072 resample_filter_deps="avresample"
3073 rubberband_filter_deps="librubberband"
3074 sab_filter_deps="gpl swscale"
3075 scale2ref_filter_deps="swscale"
3076 scale_filter_deps="swscale"
3077 select_filter_select="pixelutils"
3078 showcqt_filter_deps="avcodec avformat swscale"
3079 showcqt_filter_select="fft"
3080 showfreqs_filter_deps="avcodec"
3081 showfreqs_filter_select="fft"
3082 showspectrum_filter_deps="avcodec"
3083 showspectrum_filter_select="fft"
3084 showspectrumpic_filter_deps="avcodec"
3085 showspectrumpic_filter_select="fft"
3086 smartblur_filter_deps="gpl swscale"
3087 sofalizer_filter_deps="netcdf avcodec"
3088 sofalizer_filter_select="fft"
3089 spectrumsynth_filter_deps="avcodec"
3090 spectrumsynth_filter_select="fft"
3091 spp_filter_deps="gpl avcodec"
3092 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3093 stereo3d_filter_deps="gpl"
3094 subtitles_filter_deps="avformat avcodec libass"
3095 super2xsai_filter_deps="gpl"
3096 pixfmts_super2xsai_test_deps="super2xsai_filter"
3097 tinterlace_filter_deps="gpl"
3098 tinterlace_merge_test_deps="tinterlace_filter"
3099 tinterlace_pad_test_deps="tinterlace_filter"
3100 uspp_filter_deps="gpl avcodec"
3101 vaguedenoiser_filter_deps="gpl"
3102 vidstabdetect_filter_deps="libvidstab"
3103 vidstabtransform_filter_deps="libvidstab"
3104 zmq_filter_deps="libzmq"
3105 zoompan_filter_deps="swscale"
3106 zscale_filter_deps="libzimg"
3107 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3108
3109 # examples
3110 avio_dir_cmd_deps="avformat avutil"
3111 avio_reading_deps="avformat avcodec avutil"
3112 decoding_encoding_example_deps="avcodec avformat avutil"
3113 demuxing_decoding_example_deps="avcodec avformat avutil"
3114 extract_mvs_example_deps="avcodec avformat avutil"
3115 filter_audio_example_deps="avfilter avutil"
3116 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3117 filtering_video_example_deps="avfilter avcodec avformat avutil"
3118 http_multiclient_example_deps="avformat avutil"
3119 metadata_example_deps="avformat avutil"
3120 muxing_example_deps="avcodec avformat avutil swscale"
3121 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3122 remuxing_example_deps="avcodec avformat avutil"
3123 resampling_audio_example_deps="avutil swresample"
3124 scaling_video_example_deps="avutil swscale"
3125 transcode_aac_example_deps="avcodec avformat swresample"
3126 transcoding_example_deps="avfilter avcodec avformat avutil"
3127
3128 # libraries, in linking order
3129 avcodec_deps="avutil"
3130 avdevice_deps="avformat avcodec avutil"
3131 avfilter_deps="avutil"
3132 avformat_deps="avcodec avutil"
3133 avresample_deps="avutil"
3134 postproc_deps="avutil gpl"
3135 swresample_deps="avutil"
3136 swscale_deps="avutil"
3137
3138 # programs
3139 ffmpeg_deps="avcodec avfilter avformat swresample"
3140 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3141                null_filter
3142                setpts_filter trim_filter"
3143 ffplay_deps="avcodec avformat swscale swresample sdl2"
3144 ffplay_libs='$sdl2_libs'
3145 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3146 ffprobe_deps="avcodec avformat"
3147 ffserver_deps="avformat fork sarestart"
3148 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3149
3150 # documentation
3151 podpages_deps="perl"
3152 manpages_deps="perl pod2man"
3153 htmlpages_deps="perl"
3154 htmlpages_deps_any="makeinfo_html texi2html"
3155 txtpages_deps="perl makeinfo"
3156 doc_deps_any="manpages htmlpages podpages txtpages"
3157
3158 # default parameters
3159
3160 logfile="config.log"
3161
3162 # installation paths
3163 prefix_default="/usr/local"
3164 bindir_default='${prefix}/bin'
3165 datadir_default='${prefix}/share/ffmpeg'
3166 docdir_default='${prefix}/share/doc/ffmpeg'
3167 incdir_default='${prefix}/include'
3168 libdir_default='${prefix}/lib'
3169 mandir_default='${prefix}/share/man'
3170
3171 # toolchain
3172 ar_default="ar"
3173 cc_default="gcc"
3174 cxx_default="g++"
3175 host_cc_default="gcc"
3176 cp_f="cp -f"
3177 doxygen_default="doxygen"
3178 install="install"
3179 ln_s_default="ln -s -f"
3180 nm_default="nm -g"
3181 objformat="elf"
3182 pkg_config_default=pkg-config
3183 ranlib_default="ranlib"
3184 strip_default="strip"
3185 version_script='--version-script'
3186 yasmexe_default="yasm"
3187 windres_default="windres"
3188
3189 # OS
3190 target_os_default=$(tolower $(uname -s))
3191 host_os=$target_os_default
3192
3193 # machine
3194 if test "$target_os_default" = aix; then
3195     arch_default=$(uname -p)
3196     strip_default="strip -X32_64"
3197 else
3198     arch_default=$(uname -m)
3199 fi
3200 cpu="generic"
3201 intrinsics="none"
3202
3203 # configurable options
3204 enable $PROGRAM_LIST
3205 enable $DOCUMENT_LIST
3206 enable $EXAMPLE_LIST
3207 enable $(filter_out avresample $LIBRARY_LIST)
3208 enable stripping
3209
3210 enable asm
3211 enable debug
3212 enable doc
3213 enable faan faandct faanidct
3214 enable optimizations
3215 enable runtime_cpudetect
3216 enable safe_bitstream_reader
3217 enable static
3218 enable swscale_alpha
3219 enable valgrind_backtrace
3220
3221 sws_max_filter_size_default=256
3222 set_default sws_max_filter_size
3223
3224 # Enable platform codecs by default.
3225 enable audiotoolbox
3226
3227 # Enable hwaccels by default.
3228 enable d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3229 enable xlib
3230
3231 enable nvenc vda_framework videotoolbox videotoolbox_encoder
3232
3233 # build settings
3234 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3235 LIBPREF="lib"
3236 LIBSUF=".a"
3237 FULLNAME='$(NAME)$(BUILDSUF)'
3238 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3239 SLIBPREF="lib"
3240 SLIBSUF=".so"
3241 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3242 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3243 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3244 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3245 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3246 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3247 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3248
3249 asflags_filter=echo
3250 cflags_filter=echo
3251 ldflags_filter=echo
3252
3253 AS_C='-c'
3254 AS_O='-o $@'
3255 CC_C='-c'
3256 CC_E='-E -o $@'
3257 CC_O='-o $@'
3258 CXX_C='-c'
3259 CXX_O='-o $@'
3260 OBJCC_C='-c'
3261 OBJCC_E='-E -o $@'
3262 OBJCC_O='-o $@'
3263 LD_O='-o $@'
3264 LD_LIB='-l%'
3265 LD_PATH='-L'
3266 HOSTCC_C='-c'
3267 HOSTCC_E='-E -o $@'
3268 HOSTCC_O='-o $@'
3269 HOSTLD_O='-o $@'
3270
3271 host_libs='-lm'
3272 host_cflags_filter=echo
3273 host_ldflags_filter=echo
3274
3275 target_path='$(CURDIR)'
3276
3277 # since the object filename is not given with the -MM flag, the compiler
3278 # is only able to print the basename, and we must add the path ourselves
3279 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3280 DEPFLAGS='-MM'
3281
3282 # find source path
3283 if test -f configure; then
3284     source_path=.
3285 else
3286     source_path=$(cd $(dirname "$0"); pwd)
3287     case "$source_path" in
3288         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3289     esac
3290     test -e "$source_path/config.h" &&
3291         die "Out of tree builds are impossible with config.h in source dir."
3292 fi
3293
3294 for v in "$@"; do
3295     r=${v#*=}
3296     l=${v%"$r"}
3297     r=$(sh_quote "$r")
3298     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3299 done
3300
3301 find_things(){
3302     thing=$1
3303     pattern=$2
3304     file=$source_path/$3
3305     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3306 }
3307
3308 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3309 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3310 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3311 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3312 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3313 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3314 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3315 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3316 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3317
3318 find_things_extern(){
3319     thing=$1
3320     pattern=$2
3321     file=$source_path/$3
3322     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3323 }
3324
3325 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3326 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3327
3328 ALL_COMPONENTS="
3329     $BSF_LIST
3330     $DECODER_LIST
3331     $DEMUXER_LIST
3332     $ENCODER_LIST
3333     $FILTER_LIST
3334     $HWACCEL_LIST
3335     $INDEV_LIST
3336     $MUXER_LIST
3337     $OUTDEV_LIST
3338     $PARSER_LIST
3339     $PROTOCOL_LIST
3340 "
3341
3342 for n in $COMPONENT_LIST; do
3343     v=$(toupper ${n%s})_LIST
3344     eval enable \$$v
3345     eval ${n}_if_any="\$$v"
3346 done
3347
3348 enable $ARCH_EXT_LIST
3349
3350 die_unknown(){
3351     echo "Unknown option \"$1\"."
3352     echo "See $0 --help for available options."
3353     exit 1
3354 }
3355
3356 print_in_columns() {
3357     cols=$(expr $ncols / 24)
3358     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3359 }
3360
3361 show_list() {
3362     suffix=_$1
3363     shift
3364     echo $* | sed s/$suffix//g | print_in_columns
3365     exit 0
3366 }
3367
3368 rand_list(){
3369     IFS=', '
3370     set -- $*
3371     unset IFS
3372     for thing; do
3373         comp=${thing%:*}
3374         prob=${thing#$comp}
3375         prob=${prob#:}
3376         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3377         echo "prob ${prob:-0.5}"
3378         printf '%s\n' $comp
3379     done
3380 }
3381
3382 do_random(){
3383     action=$1
3384     shift
3385     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3386     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3387 }
3388
3389 for opt do
3390     optval="${opt#*=}"
3391     case "$opt" in
3392         --extra-ldflags=*)
3393             add_ldflags $optval
3394         ;;
3395         --extra-ldexeflags=*)
3396             add_ldexeflags $optval
3397         ;;
3398         --extra-ldlibflags=*)
3399             add_ldlibflags $optval
3400         ;;
3401         --extra-libs=*)
3402             add_extralibs $optval
3403         ;;
3404         --disable-devices)
3405             disable $INDEV_LIST $OUTDEV_LIST
3406         ;;
3407         --enable-debug=*)
3408             debuglevel="$optval"
3409         ;;
3410         --disable-programs)
3411             disable $PROGRAM_LIST
3412         ;;
3413         --disable-everything)
3414             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3415         ;;
3416         --disable-all)
3417             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3418             disable $LIBRARY_LIST $PROGRAM_LIST doc
3419             enable avutil
3420         ;;
3421         --enable-random|--disable-random)
3422             action=${opt%%-random}
3423             do_random ${action#--} $COMPONENT_LIST
3424         ;;
3425         --enable-random=*|--disable-random=*)
3426             action=${opt%%-random=*}
3427             do_random ${action#--} $optval
3428         ;;
3429         --enable-*=*|--disable-*=*)
3430             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3431             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3432             eval list=\$$(toupper $thing)_LIST
3433             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3434             list=$(filter "$name" $list)
3435             [ "$list" = "" ] && warn "Option $opt did not match anything"
3436             $action $list
3437         ;;
3438         --enable-?*|--disable-?*)
3439             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3440             if is_in $option $COMPONENT_LIST; then
3441                 test $action = disable && action=unset
3442                 eval $action \$$(toupper ${option%s})_LIST
3443             elif is_in $option $CMDLINE_SELECT; then
3444                 $action $option
3445             else
3446                 die_unknown $opt
3447             fi
3448         ;;
3449         --list-*)
3450             NAME="${opt#--list-}"
3451             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3452             NAME=${NAME%s}
3453             eval show_list $NAME \$$(toupper $NAME)_LIST
3454         ;;
3455         --help|-h) show_help
3456         ;;
3457         --fatal-warnings) enable fatal_warnings
3458         ;;
3459         *)
3460             optname="${opt%%=*}"
3461             optname="${optname#--}"
3462             optname=$(echo "$optname" | sed 's/-/_/g')
3463             if is_in $optname $CMDLINE_SET; then
3464                 eval $optname='$optval'
3465             elif is_in $optname $CMDLINE_APPEND; then
3466                 append $optname "$optval"
3467             else
3468                 die_unknown $opt
3469             fi
3470         ;;
3471     esac
3472 done
3473
3474 for e in $env; do
3475     eval "export $e"
3476 done
3477
3478 disabled logging && logfile=/dev/null
3479
3480 # Disable all the library-specific components if the library itself
3481 # is disabled, see AVCODEC_LIST and following _LIST variables.
3482
3483 disable_components(){
3484     disabled ${1} && disable $(
3485         eval components="\$$(toupper ${1})_COMPONENTS"
3486         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3487     )
3488 }
3489
3490 map 'disable_components $v' $LIBRARY_LIST
3491
3492 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3493 set >> $logfile
3494
3495 test -n "$valgrind" && toolchain="valgrind-memcheck"
3496
3497 case "$toolchain" in
3498     *-asan)
3499         cc_default="${toolchain%-asan}"
3500         add_cflags  -fsanitize=address
3501         add_ldflags -fsanitize=address
3502     ;;
3503     *-msan)
3504         cc_default="${toolchain%-msan}"
3505         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3506         add_ldflags -fsanitize=memory
3507     ;;
3508     *-tsan)
3509         cc_default="${toolchain%-tsan}"
3510         add_cflags  -fsanitize=thread -pie
3511         add_ldflags -fsanitize=thread -pie
3512         case "$toolchain" in
3513             gcc-tsan)
3514                 add_cflags  -fPIC
3515                 add_ldflags -fPIC
3516                 ;;
3517         esac
3518     ;;
3519     *-usan)
3520         cc_default="${toolchain%-usan}"
3521         add_cflags  -fsanitize=undefined
3522         add_ldflags -fsanitize=undefined
3523     ;;
3524     valgrind-*)
3525         target_exec_default="valgrind"
3526         case "$toolchain" in
3527             valgrind-massif)
3528                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3529                 ;;
3530             valgrind-memcheck)
3531                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3532                 ;;
3533         esac
3534     ;;
3535     msvc)
3536         # Check whether the current MSVC version needs the C99 converter.
3537         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3538         # support enough of C99 to build ffmpeg. Default to the new
3539         # behaviour if the regexp was unable to match anything, since this
3540         # successfully parses the version number of existing supported
3541         # versions that require the converter (MSVC 2010 and 2012).
3542         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3543         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3544             cc_default="cl"
3545         else
3546             cc_default="c99wrap cl"
3547         fi
3548         ld_default="$source_path/compat/windows/mslink"
3549         nm_default="dumpbin -symbols"
3550         ar_default="lib"
3551         case "$arch" in
3552         arm*)
3553             as_default="armasm"
3554             ;;
3555         esac
3556         target_os_default="win32"
3557         # Use a relative path for TMPDIR. This makes sure all the
3558         # ffconf temp files are written with a relative path, avoiding
3559         # issues with msys/win32 path conversion for MSVC parameters
3560         # such as -Fo<file> or -out:<file>.
3561         TMPDIR=.
3562     ;;
3563     icl)
3564         cc_default="icl"
3565         ld_default="xilink"
3566         nm_default="dumpbin -symbols"
3567         ar_default="xilib"
3568         target_os_default="win32"
3569         TMPDIR=.
3570     ;;
3571     gcov)
3572         add_cflags  -fprofile-arcs -ftest-coverage
3573         add_ldflags -fprofile-arcs -ftest-coverage
3574     ;;
3575     llvm-cov)
3576         add_cflags -fprofile-arcs -ftest-coverage
3577         add_ldflags --coverage
3578     ;;
3579     hardened)
3580         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3581         add_cflags   -fno-strict-overflow -fstack-protector-all
3582         add_ldflags  -Wl,-z,relro -Wl,-z,now
3583         add_cflags   -fPIE
3584         add_ldexeflags -fPIE -pie
3585     ;;
3586     ?*)
3587         die "Unknown toolchain $toolchain"
3588     ;;
3589 esac
3590
3591 test -n "$cross_prefix" && enable cross_compile
3592
3593 if enabled cross_compile; then
3594     test -n "$arch" && test -n "$target_os" ||
3595         die "Must specify target arch and OS when cross-compiling"
3596 fi
3597
3598 ar_default="${cross_prefix}${ar_default}"
3599 cc_default="${cross_prefix}${cc_default}"
3600 cxx_default="${cross_prefix}${cxx_default}"
3601 nm_default="${cross_prefix}${nm_default}"
3602 pkg_config_default="${cross_prefix}${pkg_config_default}"
3603 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3604     ranlib_default="${cross_prefix}${ranlib_default} -D"
3605 else
3606     ranlib_default="${cross_prefix}${ranlib_default}"
3607 fi
3608 strip_default="${cross_prefix}${strip_default}"
3609 windres_default="${cross_prefix}${windres_default}"
3610
3611 sysinclude_default="${sysroot}/usr/include"
3612
3613 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3614     target_exec target_os yasmexe
3615 enabled cross_compile || host_cc_default=$cc
3616 set_default host_cc
3617
3618 pkg_config_fail_message=""
3619 if ! $pkg_config --version >/dev/null 2>&1; then
3620     warn "$pkg_config not found, library detection may fail."
3621     pkg_config=false
3622 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3623     pkg_config_fail_message="
3624 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3625 fi
3626
3627 if test $doxygen != $doxygen_default && \
3628   ! $doxygen --version >/dev/null 2>&1; then
3629     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3630 fi
3631
3632 exesuf() {
3633     case $1 in
3634         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3635     esac
3636 }
3637
3638 EXESUF=$(exesuf $target_os)
3639 HOSTEXESUF=$(exesuf $host_os)
3640
3641 # set temporary file name
3642 : ${TMPDIR:=$TEMPDIR}
3643 : ${TMPDIR:=$TMP}
3644 : ${TMPDIR:=/tmp}
3645
3646 if [ -n "$tempprefix" ] ; then
3647     mktemp(){
3648         echo $tempprefix.${HOSTNAME}.${UID}
3649     }
3650 elif ! check_cmd mktemp -u XXXXXX; then
3651     # simple replacement for missing mktemp
3652     # NOT SAFE FOR GENERAL USE
3653     mktemp(){
3654         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3655     }
3656 fi
3657
3658 tmpfile(){
3659     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3660         (set -C; exec > $tmp) 2>/dev/null ||
3661         die "Unable to create temporary file in $TMPDIR."
3662     append TMPFILES $tmp
3663     eval $1=$tmp
3664 }
3665
3666 trap 'rm -f -- $TMPFILES' EXIT
3667
3668 tmpfile TMPASM .asm
3669 tmpfile TMPC   .c
3670 tmpfile TMPCPP .cpp
3671 tmpfile TMPE   $EXESUF
3672 tmpfile TMPH   .h
3673 tmpfile TMPM   .m
3674 tmpfile TMPO   .o
3675 tmpfile TMPS   .S
3676 tmpfile TMPSH  .sh
3677 tmpfile TMPV   .ver
3678
3679 unset -f mktemp
3680
3681 chmod +x $TMPE
3682
3683 # make sure we can execute files in $TMPDIR
3684 cat > $TMPSH 2>> $logfile <<EOF
3685 #! /bin/sh
3686 EOF
3687 chmod +x $TMPSH >> $logfile 2>&1
3688 if ! $TMPSH >> $logfile 2>&1; then
3689     cat <<EOF
3690 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3691 variable to another directory and make sure that it is not mounted noexec.
3692 EOF
3693     die "Sanity test failed."
3694 fi
3695
3696 armasm_flags(){
3697     for flag; do
3698         case $flag in
3699             # Filter out MSVC cl.exe options from cflags that shouldn't
3700             # be passed to gas-preprocessor
3701             -M[TD]*)                                            ;;
3702             *)                  echo $flag                      ;;
3703         esac
3704    done
3705 }
3706
3707 ccc_flags(){
3708     for flag; do
3709         case $flag in
3710             -std=c99)           echo -c99                       ;;
3711             -mcpu=*)            echo -arch ${flag#*=}           ;;
3712             -mieee)             echo -ieee                      ;;
3713             -O*|-fast)          echo $flag                      ;;
3714             -fno-math-errno)    echo -assume nomath_errno       ;;
3715             -g)                 echo -g3                        ;;
3716             -Wall)              echo -msg_enable level2         ;;
3717             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3718             -Wl,*)              echo $flag                      ;;
3719             -f*|-W*)                                            ;;
3720             *)                  echo $flag                      ;;
3721         esac
3722    done
3723 }
3724
3725 cparser_flags(){
3726     for flag; do
3727         case $flag in
3728             -Wno-switch)             echo -Wno-switch-enum ;;
3729             -Wno-format-zero-length) ;;
3730             -Wdisabled-optimization) ;;
3731             -Wno-pointer-sign)       echo -Wno-other ;;
3732             *)                       echo $flag ;;
3733         esac
3734     done
3735 }
3736
3737 msvc_common_flags(){
3738     for flag; do
3739         case $flag in
3740             # In addition to specifying certain flags under the compiler
3741             # specific filters, they must be specified here as well or else the
3742             # generic catch all at the bottom will print the original flag.
3743             -Wall)                ;;
3744             -std=c99)             ;;
3745             # Common flags
3746             -fomit-frame-pointer) ;;
3747             -g)                   echo -Z7 ;;
3748             -fno-math-errno)      ;;
3749             -fno-common)          ;;
3750             -fno-signed-zeros)    ;;
3751             -fPIC)                ;;
3752             -mthumb)              ;;
3753             -march=*)             ;;
3754             -lz)                  echo zlib.lib ;;
3755             -lavifil32)           echo vfw32.lib ;;
3756             -lavicap32)           echo vfw32.lib user32.lib ;;
3757             -lx264)               echo libx264.lib ;;
3758             -l*)                  echo ${flag#-l}.lib ;;
3759             -LARGEADDRESSAWARE)   echo $flag ;;
3760             -L*)                  echo -libpath:${flag#-L} ;;
3761             *)                    echo $flag ;;
3762         esac
3763     done
3764 }
3765
3766 msvc_flags(){
3767     msvc_common_flags "$@"
3768     for flag; do
3769         case $flag in
3770             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3771                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3772                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3773                                        -wd4307 \
3774                                        -wd4273 -wd4554 -wd4701 ;;
3775         esac
3776     done
3777 }
3778
3779 icl_flags(){
3780     msvc_common_flags "$@"
3781     for flag; do
3782         case $flag in
3783             # Despite what Intel's documentation says -Wall, which is supported
3784             # on Windows, does enable remarks so disable them here.
3785             -Wall)                echo $flag -Qdiag-disable:remark ;;
3786             -std=c99)             echo -Qstd=c99 ;;
3787             -flto)                echo -ipo ;;
3788         esac
3789     done
3790 }
3791
3792 icc_flags(){
3793     for flag; do
3794         case $flag in
3795             -flto)                echo -ipo ;;
3796             *)                    echo $flag ;;
3797         esac
3798     done
3799 }
3800
3801 pgi_flags(){
3802     for flag; do
3803         case $flag in
3804             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3805             -fomit-frame-pointer) echo -Mnoframe ;;
3806             -g)                   echo -gopt ;;
3807             *)                    echo $flag ;;
3808         esac
3809     done
3810 }
3811
3812 suncc_flags(){
3813     for flag; do
3814         case $flag in
3815             -march=*|-mcpu=*)
3816                 case "${flag#*=}" in
3817                     native)                   echo -xtarget=native       ;;
3818                     v9|niagara)               echo -xarch=sparc          ;;
3819                     ultrasparc)               echo -xarch=sparcvis       ;;
3820                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3821                     i586|pentium)             echo -xchip=pentium        ;;
3822                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3823                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3824                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3825                     pentium4*)          echo -xtarget=pentium4           ;;
3826                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3827                     *-sse3)             echo -xarch=sse3                 ;;
3828                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3829                     bonnell)                   echo -xarch=ssse3         ;;
3830                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3831                     westmere)                  echo -xtarget=westmere    ;;
3832                     silvermont)                echo -xarch=sse4_2        ;;
3833                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3834                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3835                                                echo -xarch=avx           ;;
3836                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3837                     btver1)                    echo -xarch=amdsse4a      ;;
3838                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3839                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3840                     k8|opteron|athlon64|athlon-fx)
3841                                                echo -xarch=sse2a         ;;
3842                     athlon*)                   echo -xarch=pentium_proa  ;;
3843                 esac
3844                 ;;
3845             -std=c99)             echo -xc99              ;;
3846             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3847             -fPIC)                echo -KPIC -xcode=pic32 ;;
3848             -W*,*)                echo $flag              ;;
3849             -f*-*|-W*|-mimpure-text)                      ;;
3850             -shared)              echo -G                 ;;
3851             *)                    echo $flag              ;;
3852         esac
3853     done
3854 }
3855
3856 tms470_flags(){
3857     for flag; do
3858         case $flag in
3859             -march=*|-mcpu=*)
3860                 case "${flag#*=}" in
3861                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3862                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3863                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3864                     armv6*|arm11*)          echo -mv=6   ;;
3865                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3866                                             echo -mv=5e  ;;
3867                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3868                 esac
3869                 ;;
3870             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3871             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3872             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3873             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3874             -msoft-float)   echo --float_support=vfplib       ;;
3875             -O[0-3]|-mf=*)  echo $flag                        ;;
3876             -g)             echo -g -mn                       ;;
3877             -pds=*)         echo $flag                        ;;
3878             -D*|-I*)        echo $flag                        ;;
3879             --gcc|--abi=*)  echo $flag                        ;;
3880             -me)            echo $flag                        ;;
3881         esac
3882     done
3883 }
3884
3885 probe_cc(){
3886     pfx=$1
3887     _cc=$2
3888     first=$3
3889
3890     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3891     unset _ld_o _ldflags _ld_lib _ld_path
3892     unset _depflags _DEPCMD _DEPFLAGS
3893     _flags_filter=echo
3894
3895     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3896         true # no-op to avoid reading stdin in following checks
3897     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3898         _type=llvm_gcc
3899         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3900         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3901         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3902         _cflags_speed='-O3'
3903         _cflags_size='-Os'
3904     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3905         _type=gcc
3906         gcc_version=$($_cc --version | head -n1)
3907         gcc_basever=$($_cc -dumpversion)
3908         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3909         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3910         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3911         case $gcc_basever in
3912             2) ;;
3913             2.*) ;;
3914             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3915         esac
3916         if [ "$first" = true ]; then
3917             case $gcc_basever in
3918                 4.2*)
3919                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3920             esac
3921         fi
3922         _cflags_speed='-O3'
3923         _cflags_size='-Os'
3924     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3925         _type=icc
3926         _ident=$($_cc --version | head -n1)
3927         _depflags='-MMD'
3928         _cflags_speed='-O3'
3929         _cflags_size='-Os'
3930         _cflags_noopt='-O1'
3931         _flags_filter=icc_flags
3932     elif $_cc -v 2>&1 | grep -q xlc; then
3933         _type=xlc
3934         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3935         _cflags_speed='-O5'
3936         _cflags_size='-O5 -qcompact'
3937     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3938         _type=ccc
3939         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3940         _DEPFLAGS='-M'
3941         _cflags_speed='-fast'
3942         _cflags_size='-O1'
3943         _flags_filter=ccc_flags
3944     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3945         test -d "$sysroot" || die "No valid sysroot specified."
3946         _type=armcc
3947         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3948         armcc_conf="$PWD/armcc.conf"
3949         $_cc --arm_linux_configure                 \
3950              --arm_linux_config_file="$armcc_conf" \
3951              --configure_sysroot="$sysroot"        \
3952              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3953              die "Error creating armcc configuration file."
3954         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3955         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3956         as_default="${cross_prefix}gcc"
3957         _depflags='-MMD'
3958         _cflags_speed='-O3'
3959         _cflags_size='-Os'
3960     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3961         _type=tms470
3962         _ident=$($_cc -version | head -n1 | tr -s ' ')
3963         _flags='--gcc --abi=eabi -me'
3964         _cc_e='-ppl -fe=$@'
3965         _cc_o='-fe=$@'
3966         _depflags='-ppa -ppd=$(@:.o=.d)'
3967         _cflags_speed='-O3 -mf=5'
3968         _cflags_size='-O3 -mf=2'
3969         _flags_filter=tms470_flags
3970     elif $_cc -v 2>&1 | grep -q clang; then
3971         _type=clang
3972         _ident=$($_cc --version 2>/dev/null | head -n1)
3973         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3974         _cflags_speed='-O3'
3975         _cflags_size='-Os'
3976     elif $_cc -V 2>&1 | grep -q Sun; then
3977         _type=suncc
3978         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3979         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3980         _DEPFLAGS='-xM1 -xc99'
3981         _ldflags='-std=c99'
3982         _cflags_speed='-O5'
3983         _cflags_size='-O5 -xspace'
3984         _flags_filter=suncc_flags
3985     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3986         _type=pathscale
3987         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3988         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3989         _cflags_speed='-O2'
3990         _cflags_size='-Os'
3991         _flags_filter='filter_out -Wdisabled-optimization'
3992     elif $_cc -v 2>&1 | grep -q Open64; then
3993         _type=open64
3994         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3995         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3996         _cflags_speed='-O2'
3997         _cflags_size='-Os'
3998         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3999     elif $_cc -V 2>&1 | grep -q Portland; then
4000         _type=pgi
4001         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4002         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4003         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4004         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4005         _cflags_noopt="-O"
4006         _flags_filter=pgi_flags
4007     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4008         _type=armasm
4009         _ident=$($_cc | head -n1)
4010         # 4509: "This form of conditional instruction is deprecated"
4011         _flags="-nologo -ignore 4509"
4012         _flags_filter=armasm_flags
4013     elif $_cc 2>&1 | grep -q Intel; then
4014         _type=icl
4015         _ident=$($_cc 2>&1 | head -n1)
4016         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4017         # Not only is O3 broken on 13.x+ but it is slower on all previous
4018         # versions (tested) as well.
4019         _cflags_speed="-O2"
4020         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4021         if $_cc 2>&1 | grep -q Linker; then
4022             _ld_o='-out:$@'
4023         else
4024             _ld_o='-Fe$@'
4025         fi
4026         _cc_o='-Fo$@'
4027         _cc_e='-P'
4028         _flags_filter=icl_flags
4029         _ld_lib='lib%.a'
4030         _ld_path='-libpath:'
4031         # -Qdiag-error to make icl error when seeing certain unknown arguments
4032         _flags='-nologo -Qdiag-error:4044,10157'
4033         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4034         # with MSVC which enables it by default.
4035         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4036         disable stripping
4037     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4038         _type=msvc
4039         _ident=$($_cc 2>&1 | head -n1)
4040         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4041         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4042         _cflags_speed="-O2"
4043         _cflags_size="-O1"
4044         if $_cc -nologo- 2>&1 | grep -q Linker; then
4045             _ld_o='-out:$@'
4046         else
4047             _ld_o='-Fe$@'
4048         fi
4049         _cc_o='-Fo$@'
4050         _cc_e='-P -Fi$@'
4051         _flags_filter=msvc_flags
4052         _ld_lib='lib%.a'
4053         _ld_path='-libpath:'
4054         _flags='-nologo'
4055         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
4056         disable stripping
4057     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4058         _type=cparser
4059         _ident=$($_cc --version | head -n1)
4060         _depflags='-MMD'
4061         _cflags_speed='-O4'
4062         _cflags_size='-O2'
4063         _flags_filter=cparser_flags
4064     fi
4065
4066     eval ${pfx}_type=\$_type
4067     eval ${pfx}_ident=\$_ident
4068 }
4069
4070 set_ccvars(){
4071     eval ${1}_C=\${_cc_c-\${${1}_C}}
4072     eval ${1}_E=\${_cc_e-\${${1}_E}}
4073     eval ${1}_O=\${_cc_o-\${${1}_O}}
4074
4075     if [ -n "$_depflags" ]; then
4076         eval ${1}_DEPFLAGS=\$_depflags
4077     else
4078         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4079         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4080         eval DEP${1}FLAGS=\$_flags
4081     fi
4082 }
4083
4084 probe_cc cc "$cc" "true"
4085 cflags_filter=$_flags_filter
4086 cflags_speed=$_cflags_speed
4087 cflags_size=$_cflags_size
4088 cflags_noopt=$_cflags_noopt
4089 add_cflags $_flags $_cflags
4090 cc_ldflags=$_ldflags
4091 set_ccvars CC
4092