avfilter/vf_framerate: switch to activate
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112   --disable-autodetect     disable automatically detected external libraries [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe 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 (deprecated) [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   --disable-alsa           disable ALSA support [autodetect]
204   --disable-appkit         disable Apple AppKit framework [autodetect]
205   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
206   --enable-avisynth        enable reading of AviSynth script files [no]
207   --disable-bzlib          disable bzlib [autodetect]
208   --disable-coreimage      disable Apple CoreImage framework [autodetect]
209   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
210   --enable-frei0r          enable frei0r video filtering [no]
211   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
212                            if openssl, librtmp or gmp is not used [no]
213   --enable-gmp             enable gmp, needed for rtmp(t)e support
214                            if openssl or librtmp is not used [no]
215   --enable-gnutls          enable gnutls, needed for https support
216                            if openssl, libtls or mbedtls is not used [no]
217   --disable-iconv          disable iconv [autodetect]
218   --enable-jni             enable JNI support [no]
219   --enable-ladspa          enable LADSPA audio filtering [no]
220   --enable-libaom          enable AV1 video encoding/decoding via libaom [no]
221   --enable-libass          enable libass subtitles rendering,
222                            needed for subtitles and ass filter [no]
223   --enable-libbluray       enable BluRay reading using libbluray [no]
224   --enable-libbs2b         enable bs2b DSP library [no]
225   --enable-libcaca         enable textual display using libcaca [no]
226   --enable-libcelt         enable CELT decoding via libcelt [no]
227   --enable-libcdio         enable audio CD grabbing with libcdio [no]
228   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
229   --enable-libdavs2        enable AVS2 decoding via libdavs2 [no]
230   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
231                            and libraw1394 [no]
232   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
233   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
234   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
235   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
236   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
237   --enable-libgme          enable Game Music Emu via libgme [no]
238   --enable-libgsm          enable GSM de/encoding via libgsm [no]
239   --enable-libiec61883     enable iec61883 via libiec61883 [no]
240   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
241   --enable-libjack         enable JACK audio sound server [no]
242   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
243   --enable-liblensfun      enable lensfun lens correction [no]
244   --enable-libmodplug      enable ModPlug via libmodplug [no]
245   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
246   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
247   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
248   --enable-libopencv       enable video filtering via libopencv [no]
249   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
250   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
251   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
252   --enable-libopus         enable Opus de/encoding via libopus [no]
253   --enable-libpulse        enable Pulseaudio input via libpulse [no]
254   --enable-librsvg         enable SVG rasterization via librsvg [no]
255   --enable-librubberband   enable rubberband needed for rubberband filter [no]
256   --enable-librtmp         enable RTMP[E] support via librtmp [no]
257   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
258   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
259   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
260   --enable-libsoxr         enable Include libsoxr resampling [no]
261   --enable-libspeex        enable Speex de/encoding via libspeex [no]
262   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
263   --enable-libssh          enable SFTP protocol via libssh [no]
264   --enable-libtensorflow   enable TensorFlow as a DNN module backend
265                            for DNN based filters like sr [no]
266   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
267   --enable-libtheora       enable Theora encoding via libtheora [no]
268   --enable-libtls          enable LibreSSL (via libtls), needed for https support
269                            if openssl, gnutls or mbedtls is not used [no]
270   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
271   --enable-libv4l2         enable libv4l2/v4l-utils [no]
272   --enable-libvidstab      enable video stabilization using vid.stab [no]
273   --enable-libvmaf         enable vmaf filter via libvmaf [no]
274   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
275   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
276                            native implementation exists [no]
277   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
278   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
279   --enable-libwebp         enable WebP encoding via libwebp [no]
280   --enable-libx264         enable H.264 encoding via x264 [no]
281   --enable-libx265         enable HEVC encoding via x265 [no]
282   --enable-libxavs         enable AVS encoding via xavs [no]
283   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
284   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
285   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
286   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
287   --enable-libxvid         enable Xvid encoding via xvidcore,
288                            native MPEG-4/Xvid encoder exists [no]
289   --enable-libxml2         enable XML parsing using the C library libxml2, needed
290                            for dash demuxing support [no]
291   --enable-libzimg         enable z.lib, needed for zscale filter [no]
292   --enable-libzmq          enable message passing via libzmq [no]
293   --enable-libzvbi         enable teletext support via libzvbi [no]
294   --enable-lv2             enable LV2 audio filtering [no]
295   --disable-lzma           disable lzma [autodetect]
296   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
297   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
298   --enable-mbedtls         enable mbedTLS, needed for https support
299                            if openssl, gnutls or libtls is not used [no]
300   --enable-mediacodec      enable Android MediaCodec support [no]
301   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
302   --enable-openal          enable OpenAL 1.1 capture support [no]
303   --enable-opencl          enable OpenCL processing [no]
304   --enable-opengl          enable OpenGL rendering [no]
305   --enable-openssl         enable openssl, needed for https support
306                            if gnutls, libtls or mbedtls is not used [no]
307   --disable-sndio          disable sndio support [autodetect]
308   --disable-schannel       disable SChannel SSP, needed for TLS support on
309                            Windows if openssl and gnutls are not used [autodetect]
310   --disable-sdl2           disable sdl2 [autodetect]
311   --disable-securetransport disable Secure Transport, needed for TLS support
312                            on OSX if openssl and gnutls are not used [autodetect]
313   --enable-vapoursynth     enable VapourSynth demuxer [no]
314   --disable-xlib           disable xlib [autodetect]
315   --disable-zlib           disable zlib [autodetect]
316
317   The following libraries provide various hardware acceleration features:
318   --disable-amf            disable AMF video encoding code [autodetect]
319   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
320   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
321   --disable-cuvid          disable Nvidia CUVID support [autodetect]
322   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
323   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
324   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
325   --enable-libdrm          enable DRM code (Linux) [no]
326   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
327   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
328   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
329   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
330   --disable-nvenc          disable Nvidia video encoding code [autodetect]
331   --enable-omx             enable OpenMAX IL code [no]
332   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
333   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
334   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
335   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
336   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
337   --disable-videotoolbox   disable VideoToolbox code [autodetect]
338
339 Toolchain options:
340   --arch=ARCH              select architecture [$arch]
341   --cpu=CPU                select the minimum required CPU (affects
342                            instruction selection, may crash on older CPUs)
343   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
344   --progs-suffix=SUFFIX    program name suffix []
345   --enable-cross-compile   assume a cross-compiler is used
346   --sysroot=PATH           root of cross-build tree
347   --sysinclude=PATH        location of cross-build system headers
348   --target-os=OS           compiler targets OS [$target_os]
349   --target-exec=CMD        command to run executables on target
350   --target-path=DIR        path to view of build directory on target
351   --target-samples=DIR     path to samples directory on target
352   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
353   --toolchain=NAME         set tool defaults according to NAME
354                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
355                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
356                            valgrind-massif, valgrind-memcheck,
357                            msvc, icl, gcov, llvm-cov, hardened)
358   --nm=NM                  use nm tool NM [$nm_default]
359   --ar=AR                  use archive tool AR [$ar_default]
360   --as=AS                  use assembler AS [$as_default]
361   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
362   --strip=STRIP            use strip tool STRIP [$strip_default]
363   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
364   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
365   --cc=CC                  use C compiler CC [$cc_default]
366   --cxx=CXX                use C compiler CXX [$cxx_default]
367   --objcc=OCC              use ObjC compiler OCC [$cc_default]
368   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
369   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
370   --ld=LD                  use linker LD [$ld_default]
371   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
372   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
373   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
374   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
375   --host-cc=HOSTCC         use host C compiler HOSTCC
376   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
377   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
378   --host-ld=HOSTLD         use host linker HOSTLD
379   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
380   --host-libs=HLIBS        use libs HLIBS when linking for host
381   --host-os=OS             compiler host OS [$target_os]
382   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
383   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
384   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
385   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
386   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
387   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
388   --extra-libs=ELIBS       add ELIBS [$ELIBS]
389   --extra-version=STRING   version string suffix []
390   --optflags=OPTFLAGS      override optimization-related compiler flags
391   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
392   --build-suffix=SUFFIX    library name suffix []
393   --enable-pic             build position-independent code
394   --enable-thumb           compile for Thumb instruction set
395   --enable-lto             use link-time optimization
396   --env="ENV=override"     override the environment variables
397
398 Advanced options (experts only):
399   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
400   --custom-allocator=NAME  use a supported custom allocator
401   --disable-symver         disable symbol versioning
402   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
403   --disable-safe-bitstream-reader
404                            disable buffer boundary checking in bitreaders
405                            (faster, but may crash)
406   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
407
408 Optimization options (experts only):
409   --disable-asm            disable all assembly optimizations
410   --disable-altivec        disable AltiVec optimizations
411   --disable-vsx            disable VSX optimizations
412   --disable-power8         disable POWER8 optimizations
413   --disable-amd3dnow       disable 3DNow! optimizations
414   --disable-amd3dnowext    disable 3DNow! extended optimizations
415   --disable-mmx            disable MMX optimizations
416   --disable-mmxext         disable MMXEXT optimizations
417   --disable-sse            disable SSE optimizations
418   --disable-sse2           disable SSE2 optimizations
419   --disable-sse3           disable SSE3 optimizations
420   --disable-ssse3          disable SSSE3 optimizations
421   --disable-sse4           disable SSE4 optimizations
422   --disable-sse42          disable SSE4.2 optimizations
423   --disable-avx            disable AVX optimizations
424   --disable-xop            disable XOP optimizations
425   --disable-fma3           disable FMA3 optimizations
426   --disable-fma4           disable FMA4 optimizations
427   --disable-avx2           disable AVX2 optimizations
428   --disable-avx512         disable AVX-512 optimizations
429   --disable-aesni          disable AESNI optimizations
430   --disable-armv5te        disable armv5te optimizations
431   --disable-armv6          disable armv6 optimizations
432   --disable-armv6t2        disable armv6t2 optimizations
433   --disable-vfp            disable VFP optimizations
434   --disable-neon           disable NEON optimizations
435   --disable-inline-asm     disable use of inline assembly
436   --disable-x86asm         disable use of standalone x86 assembly
437   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
438   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
439   --disable-msa            disable MSA optimizations
440   --disable-mipsfpu        disable floating point MIPS optimizations
441   --disable-mmi            disable Loongson SIMD optimizations
442   --disable-fast-unaligned consider unaligned accesses slow
443
444 Developer options (useful when working on FFmpeg itself):
445   --disable-debug          disable debugging symbols
446   --enable-debug=LEVEL     set the debug level [$debuglevel]
447   --disable-optimizations  disable compiler optimizations
448   --enable-extra-warnings  enable more compiler warnings
449   --disable-stripping      disable stripping of executables and shared libraries
450   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
451                            2 causes a slowdown at runtime.
452   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
453   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
454                            leaks and errors, using the specified valgrind binary.
455                            Cannot be combined with --target-exec
456   --enable-ftrapv          Trap arithmetic overflows
457   --samples=PATH           location of test samples for FATE, if not set use
458                            \$FATE_SAMPLES at make invocation time.
459   --enable-neon-clobber-test check NEON registers for clobbering (should be
460                            used only for debugging purposes)
461   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
462                            should be used only for debugging purposes)
463   --enable-random          randomly enable/disable components
464   --disable-random
465   --enable-random=LIST     randomly enable/disable specific components or
466   --disable-random=LIST    component groups. LIST is a comma-separated list
467                            of NAME[:PROB] entries where NAME is a component
468                            (group) and PROB the probability associated with
469                            NAME (default 0.5).
470   --random-seed=VALUE      seed value for --enable/disable-random
471   --disable-valgrind-backtrace do not print a backtrace under Valgrind
472                            (only applies to --disable-optimizations builds)
473   --enable-osfuzz          Enable building fuzzer tool
474   --libfuzzer=PATH         path to libfuzzer
475   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
476                            in the name) of tests whose result is ignored
477   --enable-linux-perf      enable Linux Performance Monitor API
478
479 NOTE: Object files are built at the place where configure is launched.
480 EOF
481   exit 0
482 }
483
484 if test -t 1 && which tput >/dev/null 2>&1; then
485     ncolors=$(tput colors)
486     if test -n "$ncolors" && test $ncolors -ge 8; then
487         bold_color=$(tput bold)
488         warn_color=$(tput setaf 3)
489         error_color=$(tput setaf 1)
490         reset_color=$(tput sgr0)
491     fi
492     # 72 used instead of 80 since that's the default of pr
493     ncols=$(tput cols)
494 fi
495 : ${ncols:=72}
496
497 log(){
498     echo "$@" >> $logfile
499 }
500
501 log_file(){
502     log BEGIN $1
503     pr -n -t $1 >> $logfile
504     log END $1
505 }
506
507 warn(){
508     log "WARNING: $*"
509     WARNINGS="${WARNINGS}WARNING: $*\n"
510 }
511
512 die(){
513     log "$@"
514     echo "$error_color$bold_color$@$reset_color"
515     cat <<EOF
516
517 If you think configure made a mistake, make sure you are using the latest
518 version from Git.  If the latest version fails, report the problem to the
519 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
520 EOF
521     if disabled logging; then
522         cat <<EOF
523 Rerun configure with logging enabled (do not use --disable-logging), and
524 include the log this produces with your report.
525 EOF
526     else
527         cat <<EOF
528 Include the log file "$logfile" produced by configure as this will help
529 solve the problem.
530 EOF
531     fi
532     exit 1
533 }
534
535 # Avoid locale weirdness, besides we really just want to translate ASCII.
536 toupper(){
537     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
538 }
539
540 tolower(){
541     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
542 }
543
544 c_escape(){
545     echo "$*" | sed 's/["\\]/\\\0/g'
546 }
547
548 sh_quote(){
549     v=$(echo "$1" | sed "s/'/'\\\\''/g")
550     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
551     echo "$v"
552 }
553
554 cleanws(){
555     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
556 }
557
558 filter(){
559     pat=$1
560     shift
561     for v; do
562         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
563     done
564 }
565
566 filter_out(){
567     pat=$1
568     shift
569     for v; do
570         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
571     done
572 }
573
574 map(){
575     m=$1
576     shift
577     for v; do eval $m; done
578 }
579
580 add_suffix(){
581     suffix=$1
582     shift
583     for v; do echo ${v}${suffix}; done
584 }
585
586 remove_suffix(){
587     suffix=$1
588     shift
589     for v; do echo ${v%$suffix}; done
590 }
591
592 set_all(){
593     value=$1
594     shift
595     for var in $*; do
596         eval $var=$value
597     done
598 }
599
600 set_weak(){
601     value=$1
602     shift
603     for var; do
604         eval : \${$var:=$value}
605     done
606 }
607
608 sanitize_var_name(){
609     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
610 }
611
612 set_sanitized(){
613     var=$1
614     shift
615     eval $(sanitize_var_name "$var")='$*'
616 }
617
618 get_sanitized(){
619     eval echo \$$(sanitize_var_name "$1")
620 }
621
622 pushvar(){
623     for pvar in $*; do
624         eval level=\${${pvar}_level:=0}
625         eval ${pvar}_${level}="\$$pvar"
626         eval ${pvar}_level=$(($level+1))
627     done
628 }
629
630 popvar(){
631     for pvar in $*; do
632         eval level=\${${pvar}_level:-0}
633         test $level = 0 && continue
634         eval level=$(($level-1))
635         eval $pvar="\${${pvar}_${level}}"
636         eval ${pvar}_level=$level
637         eval unset ${pvar}_${level}
638     done
639 }
640
641 request(){
642     for var in $*; do
643         eval ${var}_requested=yes
644         eval $var=
645     done
646 }
647
648 enable(){
649     set_all yes $*
650 }
651
652 disable(){
653     set_all no $*
654 }
655
656 enable_weak(){
657     set_weak yes $*
658 }
659
660 disable_weak(){
661     set_weak no $*
662 }
663
664 enable_sanitized(){
665     for var; do
666         enable $(sanitize_var_name $var)
667     done
668 }
669
670 disable_sanitized(){
671     for var; do
672         disable $(sanitize_var_name $var)
673     done
674 }
675
676 do_enable_deep(){
677     for var; do
678         enabled $var && continue
679         set -- $var
680         eval enable_deep \$${var}_select
681         var=$1
682         eval enable_deep_weak \$${var}_suggest
683     done
684 }
685
686 enable_deep(){
687     do_enable_deep $*
688     enable $*
689 }
690
691 enable_deep_weak(){
692     for var; do
693         disabled $var && continue
694         set -- $var
695         do_enable_deep $var
696         var=$1
697         enable_weak $var
698     done
699 }
700
701 requested(){
702     test "${1#!}" = "$1" && op="=" || op="!="
703     eval test "x\$${1#!}_requested" $op "xyes"
704 }
705
706 enabled(){
707     test "${1#!}" = "$1" && op="=" || op="!="
708     eval test "x\$${1#!}" $op "xyes"
709 }
710
711 disabled(){
712     test "${1#!}" = "$1" && op="=" || op="!="
713     eval test "x\$${1#!}" $op "xno"
714 }
715
716 enabled_all(){
717     for opt; do
718         enabled $opt || return 1
719     done
720 }
721
722 disabled_all(){
723     for opt; do
724         disabled $opt || return 1
725     done
726 }
727
728 enabled_any(){
729     for opt; do
730         enabled $opt && return 0
731     done
732 }
733
734 disabled_any(){
735     for opt; do
736         disabled $opt && return 0
737     done
738     return 1
739 }
740
741 set_default(){
742     for opt; do
743         eval : \${$opt:=\$${opt}_default}
744     done
745 }
746
747 is_in(){
748     value=$1
749     shift
750     for var in $*; do
751         [ $var = $value ] && return 0
752     done
753     return 1
754 }
755
756 # The cfg loop is very hot (several thousands iterations), and in bash also
757 # potentialy quite slow. Try to abort the iterations early, preferably without
758 # calling functions. 70%+ of the time cfg is already done or without deps.
759 check_deps(){
760     for cfg; do
761         eval [ x\$${cfg}_checking = xdone ] && continue
762         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
763
764         eval "
765         dep_all=\$${cfg}_deps
766         dep_any=\$${cfg}_deps_any
767         dep_con=\$${cfg}_conflict
768         dep_sel=\$${cfg}_select
769         dep_sgs=\$${cfg}_suggest
770         dep_ifa=\$${cfg}_if
771         dep_ifn=\$${cfg}_if_any
772         "
773
774         # most of the time here $cfg has no deps - avoid costly no-op work
775         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
776             eval ${cfg}_checking=inprogress
777
778             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
779             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
780             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
781
782             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
783             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
784             enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
785             enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
786             disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
787             disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
788
789             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
790
791             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
792                 # filter out library deps, these do not belong in extralibs
793                 is_in $dep $LIBRARY_LIST && continue
794                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
795             done
796         fi
797
798         eval ${cfg}_checking=done
799     done
800 }
801
802 print_config(){
803     pfx=$1
804     files=$2
805     shift 2
806     map 'eval echo "$v \${$v:-no}"' "$@" |
807     awk "BEGIN { split(\"$files\", files) }
808         {
809             c = \"$pfx\" toupper(\$1);
810             v = \$2;
811             sub(/yes/, 1, v);
812             sub(/no/,  0, v);
813             for (f in files) {
814                 file = files[f];
815                 if (file ~ /\\.h\$/) {
816                     printf(\"#define %s %d\\n\", c, v) >>file;
817                 } else if (file ~ /\\.asm\$/) {
818                     printf(\"%%define %s %d\\n\", c, v) >>file;
819                 } else if (file ~ /\\.mak\$/) {
820                     n = -v ? \"\" : \"!\";
821                     printf(\"%s%s=yes\\n\", n, c) >>file;
822                 } else if (file ~ /\\.texi\$/) {
823                     pre = -v ? \"\" : \"@c \";
824                     yesno = \$2;
825                     c2 = tolower(c);
826                     gsub(/_/, \"-\", c2);
827                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
828                 }
829             }
830         }"
831 }
832
833 print_enabled(){
834     suf=$1
835     shift
836     for v; do
837         enabled $v && printf "%s\n" ${v%$suf}
838     done
839 }
840
841 append(){
842     var=$1
843     shift
844     eval "$var=\"\$$var $*\""
845 }
846
847 prepend(){
848     var=$1
849     shift
850     eval "$var=\"$* \$$var\""
851 }
852
853 reverse () {
854     eval '
855         reverse_out=
856         for v in $'$1'; do
857             reverse_out="$v $reverse_out"
858         done
859         '$1'=$reverse_out
860     '
861 }
862
863 # keeps the last occurence of each non-unique item
864 unique(){
865     unique_out=
866     eval unique_in=\$$1
867     reverse unique_in
868     for v in $unique_in; do
869         # " $unique_out" +space such that every item is surrounded with spaces
870         case " $unique_out" in *" $v "*) continue; esac  # already in list
871         unique_out="$unique_out$v "
872     done
873     reverse unique_out
874     eval $1=\$unique_out
875 }
876
877 resolve(){
878     resolve_out=
879     eval resolve_in=\$$1
880     for v in $resolve_in; do
881         eval 'resolve_out="$resolve_out$'$v' "'
882     done
883     eval $1=\$resolve_out
884 }
885
886 add_cppflags(){
887     append CPPFLAGS "$@"
888 }
889
890 add_cflags(){
891     append CFLAGS $($cflags_filter "$@")
892 }
893
894 add_cflags_headers(){
895     append CFLAGS_HEADERS $($cflags_filter "$@")
896 }
897
898 add_cxxflags(){
899     append CXXFLAGS $($cflags_filter "$@")
900 }
901
902 add_objcflags(){
903     append OBJCFLAGS $($objcflags_filter "$@")
904 }
905
906 add_asflags(){
907     append ASFLAGS $($asflags_filter "$@")
908 }
909
910 add_ldflags(){
911     append LDFLAGS $($ldflags_filter "$@")
912 }
913
914 add_ldexeflags(){
915     append LDEXEFLAGS $($ldflags_filter "$@")
916 }
917
918 add_ldsoflags(){
919     append LDSOFLAGS $($ldflags_filter "$@")
920 }
921
922 add_extralibs(){
923     prepend extralibs $($ldflags_filter "$@")
924 }
925
926 add_stripflags(){
927     append ASMSTRIPFLAGS "$@"
928 }
929
930 add_host_cppflags(){
931     append host_cppflags "$@"
932 }
933
934 add_host_cflags(){
935     append host_cflags $($host_cflags_filter "$@")
936 }
937
938 add_host_ldflags(){
939     append host_ldflags $($host_ldflags_filter "$@")
940 }
941
942 add_compat(){
943     append compat_objs $1
944     shift
945     map 'add_cppflags -D$v' "$@"
946 }
947
948 test_cmd(){
949     log "$@"
950     "$@" >> $logfile 2>&1
951 }
952
953 test_stat(){
954     log test_stat "$@"
955     stat "$1" >> $logfile 2>&1
956 }
957
958 cc_e(){
959     eval printf '%s\\n' $CC_E
960 }
961
962 cc_o(){
963     eval printf '%s\\n' $CC_O
964 }
965
966 as_o(){
967     eval printf '%s\\n' $AS_O
968 }
969
970 x86asm_o(){
971     eval printf '%s\\n' $X86ASM_O
972 }
973
974 ld_o(){
975     eval printf '%s\\n' $LD_O
976 }
977
978 hostcc_e(){
979     eval printf '%s\\n' $HOSTCC_E
980 }
981
982 hostcc_o(){
983     eval printf '%s\\n' $HOSTCC_O
984 }
985
986 test_cc(){
987     log test_cc "$@"
988     cat > $TMPC
989     log_file $TMPC
990     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
991 }
992
993 test_cxx(){
994     log test_cxx "$@"
995     cat > $TMPCPP
996     log_file $TMPCPP
997     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
998 }
999
1000 test_objcc(){
1001     log test_objcc "$@"
1002     cat > $TMPM
1003     log_file $TMPM
1004     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1005 }
1006
1007 test_cpp(){
1008     log test_cpp "$@"
1009     cat > $TMPC
1010     log_file $TMPC
1011     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1012 }
1013
1014 test_as(){
1015     log test_as "$@"
1016     cat > $TMPS
1017     log_file $TMPS
1018     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1019 }
1020
1021 test_x86asm(){
1022     log test_x86asm "$@"
1023     echo "$1" > $TMPASM
1024     log_file $TMPASM
1025     shift
1026     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1027 }
1028
1029 check_cmd(){
1030     log check_cmd "$@"
1031     cmd=$1
1032     disabled $cmd && return
1033     disable $cmd
1034     test_cmd $@ && enable $cmd
1035 }
1036
1037 check_as(){
1038     log check_as "$@"
1039     name=$1
1040     code=$2
1041     shift 2
1042     disable $name
1043     test_as $@ <<EOF && enable $name
1044 $code
1045 EOF
1046 }
1047
1048 check_inline_asm(){
1049     log check_inline_asm "$@"
1050     name="$1"
1051     code="$2"
1052     shift 2
1053     disable $name
1054     test_cc "$@" <<EOF && enable $name
1055 void foo(void){ __asm__ volatile($code); }
1056 EOF
1057 }
1058
1059 check_inline_asm_flags(){
1060     log check_inline_asm_flags "$@"
1061     name="$1"
1062     code="$2"
1063     flags=''
1064     shift 2
1065     while [ "$1" != "" ]; do
1066       append flags $1
1067       shift
1068     done;
1069     disable $name
1070     cat > $TMPC <<EOF
1071 void foo(void){ __asm__ volatile($code); }
1072 EOF
1073     log_file $TMPC
1074     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1075     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1076 }
1077
1078 check_insn(){
1079     log check_insn "$@"
1080     check_inline_asm ${1}_inline "\"$2\""
1081     check_as ${1}_external "$2"
1082 }
1083
1084 check_x86asm(){
1085     log check_x86asm "$@"
1086     name=$1
1087     shift
1088     disable $name
1089     test_x86asm "$@" && enable $name
1090 }
1091
1092 test_ld(){
1093     log test_ld "$@"
1094     type=$1
1095     shift 1
1096     flags=$(filter_out '-l*|*.so' $@)
1097     libs=$(filter '-l*|*.so' $@)
1098     test_$type $($cflags_filter $flags) || return
1099     flags=$($ldflags_filter $flags)
1100     libs=$($ldflags_filter $libs)
1101     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1102 }
1103
1104 check_ld(){
1105     log check_ld "$@"
1106     type=$1
1107     name=$2
1108     shift 2
1109     disable $name
1110     test_ld $type $@ && enable $name
1111 }
1112
1113 print_include(){
1114     hdr=$1
1115     test "${hdr%.h}" = "${hdr}" &&
1116         echo "#include $hdr"    ||
1117         echo "#include <$hdr>"
1118 }
1119
1120 test_code(){
1121     log test_code "$@"
1122     check=$1
1123     headers=$2
1124     code=$3
1125     shift 3
1126     {
1127         for hdr in $headers; do
1128             print_include $hdr
1129         done
1130         echo "int main(void) { $code; return 0; }"
1131     } | test_$check "$@"
1132 }
1133
1134 check_cppflags(){
1135     log check_cppflags "$@"
1136     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1137 #include <stdlib.h>
1138 EOF
1139 }
1140
1141 test_cflags(){
1142     log test_cflags "$@"
1143     set -- $($cflags_filter "$@")
1144     test_cc "$@" <<EOF
1145 int x;
1146 EOF
1147 }
1148
1149 check_cflags(){
1150     log check_cflags "$@"
1151     test_cflags "$@" && add_cflags "$@"
1152 }
1153
1154 check_cxxflags(){
1155     log check_cxxflags "$@"
1156     set -- $($cflags_filter "$@")
1157     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1158 int x;
1159 EOF
1160 }
1161
1162 test_objcflags(){
1163     log test_objcflags "$@"
1164     set -- $($objcflags_filter "$@")
1165     test_objcc "$@" <<EOF
1166 int x;
1167 EOF
1168 }
1169
1170 check_objcflags(){
1171     log check_objcflags "$@"
1172     test_objcflags "$@" && add_objcflags "$@"
1173 }
1174
1175 test_ldflags(){
1176     log test_ldflags "$@"
1177     set -- $($ldflags_filter "$@")
1178     test_ld "cc" "$@" <<EOF
1179 int main(void){ return 0; }
1180 EOF
1181 }
1182
1183 check_ldflags(){
1184     log check_ldflags "$@"
1185     test_ldflags "$@" && add_ldflags "$@"
1186 }
1187
1188 test_stripflags(){
1189     log test_stripflags "$@"
1190     # call test_cc to get a fresh TMPO
1191     test_cc <<EOF
1192 int main(void) { return 0; }
1193 EOF
1194     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1195 }
1196
1197 check_stripflags(){
1198     log check_stripflags "$@"
1199     test_stripflags "$@" && add_stripflags "$@"
1200 }
1201
1202 check_headers(){
1203     log check_headers "$@"
1204     headers=$1
1205     shift
1206     disable_sanitized $headers
1207     {
1208         for hdr in $headers; do
1209             print_include $hdr
1210         done
1211         echo "int x;"
1212     } | test_cpp "$@" && enable_sanitized $headers
1213 }
1214
1215 check_header_objcc(){
1216     log check_header_objcc "$@"
1217     rm -f -- "$TMPO"
1218     header=$1
1219     shift
1220     disable_sanitized $header
1221     {
1222        echo "#include <$header>"
1223        echo "int main(void) { return 0; }"
1224     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1225 }
1226
1227 check_apple_framework(){
1228     log check_apple_framework "$@"
1229     framework="$1"
1230     name="$(tolower $framework)"
1231     header="${framework}/${framework}.h"
1232     disable $name
1233     check_header_objcc $header &&
1234         enable $name && eval ${name}_extralibs='"-framework $framework"'
1235 }
1236
1237 check_func(){
1238     log check_func "$@"
1239     func=$1
1240     shift
1241     disable $func
1242     test_ld "cc" "$@" <<EOF && enable $func
1243 extern int $func();
1244 int main(void){ $func(); }
1245 EOF
1246 }
1247
1248 check_complexfunc(){
1249     log check_complexfunc "$@"
1250     func=$1
1251     narg=$2
1252     shift 2
1253     test $narg = 2 && args="f, g" || args="f * I"
1254     disable $func
1255     test_ld "cc" "$@" <<EOF && enable $func
1256 #include <complex.h>
1257 #include <math.h>
1258 float foo(complex float f, complex float g) { return $func($args); }
1259 int main(void){ return (int) foo; }
1260 EOF
1261 }
1262
1263 check_mathfunc(){
1264     log check_mathfunc "$@"
1265     func=$1
1266     narg=$2
1267     shift 2
1268     test $narg = 2 && args="f, g" || args="f"
1269     disable $func
1270     test_ld "cc" "$@" <<EOF && enable $func
1271 #include <math.h>
1272 float foo(float f, float g) { return $func($args); }
1273 int main(void){ return (int) foo; }
1274 EOF
1275 }
1276
1277 check_func_headers(){
1278     log check_func_headers "$@"
1279     headers=$1
1280     funcs=$2
1281     shift 2
1282     {
1283         for hdr in $headers; do
1284             print_include $hdr
1285         done
1286         echo "#include <stdint.h>"
1287         for func in $funcs; do
1288             echo "long check_$func(void) { return (long) $func; }"
1289         done
1290         echo "int main(void) { int ret = 0;"
1291         # LTO could optimize out the test functions without this
1292         for func in $funcs; do
1293             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1294         done
1295         echo "return ret; }"
1296     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1297 }
1298
1299 check_class_headers_cpp(){
1300     log check_class_headers_cpp "$@"
1301     headers=$1
1302     classes=$2
1303     shift 2
1304     {
1305         for hdr in $headers; do
1306             echo "#include <$hdr>"
1307         done
1308         echo "int main(void) { "
1309         i=1
1310         for class in $classes; do
1311             echo "$class obj$i;"
1312             i=$(expr $i + 1)
1313         done
1314         echo "return 0; }"
1315     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1316 }
1317
1318 test_cpp_condition(){
1319     log test_cpp_condition "$@"
1320     header=$1
1321     condition=$2
1322     shift 2
1323     test_cpp "$@" <<EOF
1324 #include <$header>
1325 #if !($condition)
1326 #error "unsatisfied condition: $condition"
1327 #endif
1328 EOF
1329 }
1330
1331 check_cpp_condition(){
1332     log check_cpp_condition "$@"
1333     name=$1
1334     shift 1
1335     disable $name
1336     test_cpp_condition "$@" && enable $name
1337 }
1338
1339 test_cflags_cc(){
1340     log test_cflags_cc "$@"
1341     flags=$1
1342     header=$2
1343     condition=$3
1344     shift 3
1345     set -- $($cflags_filter "$flags")
1346     test_cc "$@" <<EOF
1347 #include <$header>
1348 #if !($condition)
1349 #error "unsatisfied condition: $condition"
1350 #endif
1351 EOF
1352 }
1353
1354 check_lib(){
1355     log check_lib "$@"
1356     name="$1"
1357     headers="$2"
1358     funcs="$3"
1359     shift 3
1360     disable $name
1361     check_func_headers "$headers" "$funcs" "$@" &&
1362         enable $name && eval ${name}_extralibs="\$@"
1363 }
1364
1365 check_lib_cpp(){
1366     log check_lib_cpp "$@"
1367     name="$1"
1368     headers="$2"
1369     classes="$3"
1370     shift 3
1371     disable $name
1372     check_class_headers_cpp "$headers" "$classes" "$@" &&
1373         enable $name && eval ${name}_extralibs="\$@"
1374 }
1375
1376 test_pkg_config(){
1377     log test_pkg_config "$@"
1378     name="$1"
1379     pkg_version="$2"
1380     pkg="${2%% *}"
1381     headers="$3"
1382     funcs="$4"
1383     shift 4
1384     disable $name
1385     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1386     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1387     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1388     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1389         enable $name &&
1390         set_sanitized "${name}_cflags"    $pkg_cflags &&
1391         set_sanitized "${name}_extralibs" $pkg_libs
1392 }
1393
1394 check_pkg_config(){
1395     log check_pkg_config "$@"
1396     name="$1"
1397     test_pkg_config "$@" &&
1398         eval add_cflags \$${name}_cflags
1399 }
1400
1401 test_exec(){
1402     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1403 }
1404
1405 check_exec_crash(){
1406     log check_exec_crash "$@"
1407     code=$(cat)
1408
1409     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1410     # are safe but may not be available everywhere.  Thus we use
1411     # raise(SIGTERM) instead.  The check is run in a subshell so we
1412     # can redirect the "Terminated" message from the shell.  SIGBUS
1413     # is not defined by standard C so it is used conditionally.
1414
1415     (test_exec "$@") >> $logfile 2>&1 <<EOF
1416 #include <signal.h>
1417 static void sighandler(int sig){
1418     raise(SIGTERM);
1419 }
1420 int foo(void){
1421     $code
1422 }
1423 int (*func_ptr)(void) = foo;
1424 int main(void){
1425     signal(SIGILL, sighandler);
1426     signal(SIGFPE, sighandler);
1427     signal(SIGSEGV, sighandler);
1428 #ifdef SIGBUS
1429     signal(SIGBUS, sighandler);
1430 #endif
1431     return func_ptr();
1432 }
1433 EOF
1434 }
1435
1436 check_type(){
1437     log check_type "$@"
1438     headers=$1
1439     type=$2
1440     shift 2
1441     disable_sanitized "$type"
1442     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1443 }
1444
1445 check_struct(){
1446     log check_struct "$@"
1447     headers=$1
1448     struct=$2
1449     member=$3
1450     shift 3
1451     disable_sanitized "${struct}_${member}"
1452     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1453         enable_sanitized "${struct}_${member}"
1454 }
1455
1456 check_builtin(){
1457     log check_builtin "$@"
1458     name=$1
1459     headers=$2
1460     builtin=$3
1461     shift 3
1462     disable "$name"
1463     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1464 }
1465
1466 check_compile_assert(){
1467     log check_compile_assert "$@"
1468     name=$1
1469     headers=$2
1470     condition=$3
1471     shift 3
1472     disable "$name"
1473     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1474 }
1475
1476 check_cc(){
1477     log check_cc "$@"
1478     name=$1
1479     shift
1480     disable "$name"
1481     test_code cc "$@" && enable "$name"
1482 }
1483
1484 require(){
1485     log require "$@"
1486     name_version="$1"
1487     name="${1%% *}"
1488     shift
1489     check_lib $name "$@" || die "ERROR: $name_version not found"
1490 }
1491
1492 require_cc(){
1493     log require_cc "$@"
1494     name="$1"
1495     check_cc "$@" || die "ERROR: $name failed"
1496 }
1497
1498 require_cpp(){
1499     name="$1"
1500     headers="$2"
1501     classes="$3"
1502     shift 3
1503     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1504 }
1505
1506 require_headers(){
1507     log require_headers "$@"
1508     headers="$1"
1509     check_headers "$@" || die "ERROR: $headers not found"
1510 }
1511
1512 require_cpp_condition(){
1513     log require_cpp_condition "$@"
1514     condition="$3"
1515     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1516 }
1517
1518 require_pkg_config(){
1519     log require_pkg_config "$@"
1520     pkg_version="$2"
1521     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1522 }
1523
1524 test_host_cc(){
1525     log test_host_cc "$@"
1526     cat > $TMPC
1527     log_file $TMPC
1528     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1529 }
1530
1531 test_host_cpp(){
1532     log test_host_cpp "$@"
1533     cat > $TMPC
1534     log_file $TMPC
1535     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1536 }
1537
1538 check_host_cppflags(){
1539     log check_host_cppflags "$@"
1540     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1541 #include <stdlib.h>
1542 EOF
1543 }
1544
1545 check_host_cflags(){
1546     log check_host_cflags "$@"
1547     set -- $($host_cflags_filter "$@")
1548     test_host_cc "$@" <<EOF && append host_cflags "$@"
1549 int x;
1550 EOF
1551 }
1552
1553 test_host_cpp_condition(){
1554     log test_host_cpp_condition "$@"
1555     header=$1
1556     condition=$2
1557     shift 2
1558     test_host_cpp "$@" <<EOF
1559 #include <$header>
1560 #if !($condition)
1561 #error "unsatisfied condition: $condition"
1562 #endif
1563 EOF
1564 }
1565
1566 check_host_cpp_condition(){
1567     log check_host_cpp_condition "$@"
1568     name=$1
1569     shift 1
1570     disable $name
1571     test_host_cpp_condition "$@" && enable $name
1572 }
1573
1574 cp_if_changed(){
1575     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1576     mkdir -p "$(dirname $2)"
1577     cp -f "$1" "$2"
1578 }
1579
1580 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1581 # system-dependent things.
1582
1583 AVCODEC_COMPONENTS="
1584     bsfs
1585     decoders
1586     encoders
1587     hwaccels
1588     parsers
1589 "
1590
1591 AVDEVICE_COMPONENTS="
1592     indevs
1593     outdevs
1594 "
1595
1596 AVFILTER_COMPONENTS="
1597     filters
1598 "
1599
1600 AVFORMAT_COMPONENTS="
1601     demuxers
1602     muxers
1603     protocols
1604 "
1605
1606 COMPONENT_LIST="
1607     $AVCODEC_COMPONENTS
1608     $AVDEVICE_COMPONENTS
1609     $AVFILTER_COMPONENTS
1610     $AVFORMAT_COMPONENTS
1611 "
1612
1613 EXAMPLE_LIST="
1614     avio_dir_cmd_example
1615     avio_reading_example
1616     decode_audio_example
1617     decode_video_example
1618     demuxing_decoding_example
1619     encode_audio_example
1620     encode_video_example
1621     extract_mvs_example
1622     filter_audio_example
1623     filtering_audio_example
1624     filtering_video_example
1625     http_multiclient_example
1626     hw_decode_example
1627     metadata_example
1628     muxing_example
1629     qsvdec_example
1630     remuxing_example
1631     resampling_audio_example
1632     scaling_video_example
1633     transcode_aac_example
1634     transcoding_example
1635     vaapi_encode_example
1636     vaapi_transcode_example
1637 "
1638
1639 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1640     alsa
1641     appkit
1642     avfoundation
1643     bzlib
1644     coreimage
1645     iconv
1646     libxcb
1647     libxcb_shm
1648     libxcb_shape
1649     libxcb_xfixes
1650     lzma
1651     schannel
1652     sdl2
1653     securetransport
1654     sndio
1655     xlib
1656     zlib
1657 "
1658
1659 EXTERNAL_LIBRARY_GPL_LIST="
1660     avisynth
1661     frei0r
1662     libcdio
1663     libdavs2
1664     librubberband
1665     libvidstab
1666     libx264
1667     libx265
1668     libxavs
1669     libxvid
1670 "
1671
1672 EXTERNAL_LIBRARY_NONFREE_LIST="
1673     decklink
1674     libndi_newtek
1675     libfdk_aac
1676     openssl
1677     libtls
1678 "
1679
1680 EXTERNAL_LIBRARY_VERSION3_LIST="
1681     gmp
1682     liblensfun
1683     libopencore_amrnb
1684     libopencore_amrwb
1685     libvmaf
1686     libvo_amrwbenc
1687     mbedtls
1688     rkmpp
1689 "
1690
1691 EXTERNAL_LIBRARY_GPLV3_LIST="
1692     libsmbclient
1693 "
1694
1695 EXTERNAL_LIBRARY_LIST="
1696     $EXTERNAL_LIBRARY_GPL_LIST
1697     $EXTERNAL_LIBRARY_NONFREE_LIST
1698     $EXTERNAL_LIBRARY_VERSION3_LIST
1699     $EXTERNAL_LIBRARY_GPLV3_LIST
1700     chromaprint
1701     gcrypt
1702     gnutls
1703     jni
1704     ladspa
1705     libaom
1706     libass
1707     libbluray
1708     libbs2b
1709     libcaca
1710     libcelt
1711     libcodec2
1712     libdc1394
1713     libdrm
1714     libflite
1715     libfontconfig
1716     libfreetype
1717     libfribidi
1718     libgme
1719     libgsm
1720     libiec61883
1721     libilbc
1722     libjack
1723     libkvazaar
1724     libmodplug
1725     libmp3lame
1726     libmysofa
1727     libopencv
1728     libopenh264
1729     libopenjpeg
1730     libopenmpt
1731     libopus
1732     libpulse
1733     librsvg
1734     librtmp
1735     libshine
1736     libsmbclient
1737     libsnappy
1738     libsoxr
1739     libspeex
1740     libsrt
1741     libssh
1742     libtensorflow
1743     libtesseract
1744     libtheora
1745     libtwolame
1746     libv4l2
1747     libvorbis
1748     libvpx
1749     libwavpack
1750     libwebp
1751     libxml2
1752     libzimg
1753     libzmq
1754     libzvbi
1755     lv2
1756     mediacodec
1757     openal
1758     opengl
1759     vapoursynth
1760 "
1761
1762 HWACCEL_AUTODETECT_LIBRARY_LIST="
1763     amf
1764     audiotoolbox
1765     crystalhd
1766     cuda
1767     cuvid
1768     d3d11va
1769     dxva2
1770     ffnvcodec
1771     nvdec
1772     nvenc
1773     vaapi
1774     vdpau
1775     videotoolbox
1776     v4l2_m2m
1777     xvmc
1778 "
1779
1780 # catchall list of things that require external libs to link
1781 EXTRALIBS_LIST="
1782     cpu_init
1783     cws2fws
1784 "
1785
1786 HWACCEL_LIBRARY_NONFREE_LIST="
1787     cuda_sdk
1788     libnpp
1789 "
1790
1791 HWACCEL_LIBRARY_LIST="
1792     $HWACCEL_LIBRARY_NONFREE_LIST
1793     libmfx
1794     mmal
1795     omx
1796     opencl
1797 "
1798
1799 DOCUMENT_LIST="
1800     doc
1801     htmlpages
1802     manpages
1803     podpages
1804     txtpages
1805 "
1806
1807 FEATURE_LIST="
1808     ftrapv
1809     gray
1810     hardcoded_tables
1811     omx_rpi
1812     runtime_cpudetect
1813     safe_bitstream_reader
1814     shared
1815     small
1816     static
1817     swscale_alpha
1818 "
1819
1820 # this list should be kept in linking order
1821 LIBRARY_LIST="
1822     avdevice
1823     avfilter
1824     swscale
1825     postproc
1826     avformat
1827     avcodec
1828     swresample
1829     avresample
1830     avutil
1831 "
1832
1833 LICENSE_LIST="
1834     gpl
1835     nonfree
1836     version3
1837 "
1838
1839 PROGRAM_LIST="
1840     ffplay
1841     ffprobe
1842     ffmpeg
1843 "
1844
1845 SUBSYSTEM_LIST="
1846     dct
1847     dwt
1848     error_resilience
1849     faan
1850     fast_unaligned
1851     fft
1852     lsp
1853     lzo
1854     mdct
1855     pixelutils
1856     network
1857     rdft
1858 "
1859
1860 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1861 CONFIG_LIST="
1862     $DOCUMENT_LIST
1863     $EXAMPLE_LIST
1864     $EXTERNAL_LIBRARY_LIST
1865     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1866     $HWACCEL_LIBRARY_LIST
1867     $HWACCEL_AUTODETECT_LIBRARY_LIST
1868     $FEATURE_LIST
1869     $LICENSE_LIST
1870     $LIBRARY_LIST
1871     $PROGRAM_LIST
1872     $SUBSYSTEM_LIST
1873     autodetect
1874     fontconfig
1875     linux_perf
1876     memory_poisoning
1877     neon_clobber_test
1878     ossfuzz
1879     pic
1880     thumb
1881     valgrind_backtrace
1882     xmm_clobber_test
1883     $COMPONENT_LIST
1884 "
1885
1886 THREADS_LIST="
1887     pthreads
1888     os2threads
1889     w32threads
1890 "
1891
1892 ATOMICS_LIST="
1893     atomics_gcc
1894     atomics_suncc
1895     atomics_win32
1896 "
1897
1898 AUTODETECT_LIBS="
1899     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1900     $HWACCEL_AUTODETECT_LIBRARY_LIST
1901     $THREADS_LIST
1902 "
1903
1904 ARCH_LIST="
1905     aarch64
1906     alpha
1907     arm
1908     avr32
1909     avr32_ap
1910     avr32_uc
1911     bfin
1912     ia64
1913     m68k
1914     mips
1915     mips64
1916     parisc
1917     ppc
1918     ppc64
1919     s390
1920     sh4
1921     sparc
1922     sparc64
1923     tilegx
1924     tilepro
1925     tomi
1926     x86
1927     x86_32
1928     x86_64
1929 "
1930
1931 ARCH_EXT_LIST_ARM="
1932     armv5te
1933     armv6
1934     armv6t2
1935     armv8
1936     neon
1937     vfp
1938     vfpv3
1939     setend
1940 "
1941
1942 ARCH_EXT_LIST_MIPS="
1943     mipsfpu
1944     mips32r2
1945     mips32r5
1946     mips64r2
1947     mips32r6
1948     mips64r6
1949     mipsdsp
1950     mipsdspr2
1951     msa
1952 "
1953
1954 ARCH_EXT_LIST_LOONGSON="
1955     loongson2
1956     loongson3
1957     mmi
1958 "
1959
1960 ARCH_EXT_LIST_X86_SIMD="
1961     aesni
1962     amd3dnow
1963     amd3dnowext
1964     avx
1965     avx2
1966     avx512
1967     fma3
1968     fma4
1969     mmx
1970     mmxext
1971     sse
1972     sse2
1973     sse3
1974     sse4
1975     sse42
1976     ssse3
1977     xop
1978 "
1979
1980 ARCH_EXT_LIST_PPC="
1981     altivec
1982     dcbzl
1983     ldbrx
1984     power8
1985     ppc4xx
1986     vsx
1987 "
1988
1989 ARCH_EXT_LIST_X86="
1990     $ARCH_EXT_LIST_X86_SIMD
1991     cpunop
1992     i686
1993 "
1994
1995 ARCH_EXT_LIST="
1996     $ARCH_EXT_LIST_ARM
1997     $ARCH_EXT_LIST_PPC
1998     $ARCH_EXT_LIST_X86
1999     $ARCH_EXT_LIST_MIPS
2000     $ARCH_EXT_LIST_LOONGSON
2001 "
2002
2003 ARCH_FEATURES="
2004     aligned_stack
2005     fast_64bit
2006     fast_clz
2007     fast_cmov
2008     local_aligned
2009     simd_align_16
2010     simd_align_32
2011     simd_align_64
2012 "
2013
2014 BUILTIN_LIST="
2015     atomic_cas_ptr
2016     machine_rw_barrier
2017     MemoryBarrier
2018     mm_empty
2019     rdtsc
2020     sem_timedwait
2021     sync_val_compare_and_swap
2022 "
2023 HAVE_LIST_CMDLINE="
2024     inline_asm
2025     symver
2026     x86asm
2027 "
2028
2029 HAVE_LIST_PUB="
2030     bigendian
2031     fast_unaligned
2032 "
2033
2034 HEADERS_LIST="
2035     arpa_inet_h
2036     asm_types_h
2037     cdio_paranoia_h
2038     cdio_paranoia_paranoia_h
2039     cuda_h
2040     dispatch_dispatch_h
2041     dev_bktr_ioctl_bt848_h
2042     dev_bktr_ioctl_meteor_h
2043     dev_ic_bt8xx_h
2044     dev_video_bktr_ioctl_bt848_h
2045     dev_video_meteor_ioctl_meteor_h
2046     direct_h
2047     dirent_h
2048     dxgidebug_h
2049     dxva_h
2050     ES2_gl_h
2051     gsm_h
2052     io_h
2053     linux_perf_event_h
2054     machine_ioctl_bt848_h
2055     machine_ioctl_meteor_h
2056     malloc_h
2057     opencv2_core_core_c_h
2058     OpenGL_gl3_h
2059     poll_h
2060     sys_param_h
2061     sys_resource_h
2062     sys_select_h
2063     sys_soundcard_h
2064     sys_time_h
2065     sys_un_h
2066     sys_videoio_h
2067     termios_h
2068     udplite_h
2069     unistd_h
2070     valgrind_valgrind_h
2071     windows_h
2072     winsock2_h
2073 "
2074
2075 INTRINSICS_LIST="
2076     intrinsics_neon
2077 "
2078
2079 COMPLEX_FUNCS="
2080     cabs
2081     cexp
2082 "
2083
2084 MATH_FUNCS="
2085     atanf
2086     atan2f
2087     cbrt
2088     cbrtf
2089     copysign
2090     cosf
2091     erf
2092     exp2
2093     exp2f
2094     expf
2095     hypot
2096     isfinite
2097     isinf
2098     isnan
2099     ldexpf
2100     llrint
2101     llrintf
2102     log2
2103     log2f
2104     log10f
2105     lrint
2106     lrintf
2107     powf
2108     rint
2109     round
2110     roundf
2111     sinf
2112     trunc
2113     truncf
2114 "
2115
2116 SYSTEM_FEATURES="
2117     dos_paths
2118     libc_msvcrt
2119     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2120     section_data_rel_ro
2121     threads
2122     uwp
2123     winrt
2124 "
2125
2126 SYSTEM_FUNCS="
2127     access
2128     aligned_malloc
2129     arc4random
2130     clock_gettime
2131     closesocket
2132     CommandLineToArgvW
2133     fcntl
2134     getaddrinfo
2135     gethrtime
2136     getopt
2137     GetProcessAffinityMask
2138     GetProcessMemoryInfo
2139     GetProcessTimes
2140     getrusage
2141     GetSystemTimeAsFileTime
2142     gettimeofday
2143     glob
2144     glXGetProcAddress
2145     gmtime_r
2146     inet_aton
2147     isatty
2148     kbhit
2149     localtime_r
2150     lstat
2151     lzo1x_999_compress
2152     mach_absolute_time
2153     MapViewOfFile
2154     memalign
2155     mkstemp
2156     mmap
2157     mprotect
2158     nanosleep
2159     PeekNamedPipe
2160     posix_memalign
2161     pthread_cancel
2162     sched_getaffinity
2163     SecItemImport
2164     SetConsoleTextAttribute
2165     SetConsoleCtrlHandler
2166     setmode
2167     setrlimit
2168     Sleep
2169     strerror_r
2170     sysconf
2171     sysctl
2172     usleep
2173     UTGetOSTypeFromString
2174     VirtualAlloc
2175     wglGetProcAddress
2176 "
2177
2178 SYSTEM_LIBRARIES="
2179     bcrypt
2180     vaapi_drm
2181     vaapi_x11
2182     vdpau_x11
2183 "
2184
2185 TOOLCHAIN_FEATURES="
2186     as_arch_directive
2187     as_dn_directive
2188     as_fpu_directive
2189     as_func
2190     as_object_arch
2191     asm_mod_q
2192     blocks_extension
2193     ebp_available
2194     ebx_available
2195     gnu_as
2196     gnu_windres
2197     ibm_asm
2198     inline_asm_direct_symbol_refs
2199     inline_asm_labels
2200     inline_asm_nonlocal_labels
2201     pragma_deprecated
2202     rsync_contimeout
2203     symver_asm_label
2204     symver_gnu_asm
2205     vfp_args
2206     xform_asm
2207     xmm_clobbers
2208 "
2209
2210 TYPES_LIST="
2211     kCMVideoCodecType_HEVC
2212     socklen_t
2213     struct_addrinfo
2214     struct_group_source_req
2215     struct_ip_mreq_source
2216     struct_ipv6_mreq
2217     struct_msghdr_msg_flags
2218     struct_pollfd
2219     struct_rusage_ru_maxrss
2220     struct_sctp_event_subscribe
2221     struct_sockaddr_in6
2222     struct_sockaddr_sa_len
2223     struct_sockaddr_storage
2224     struct_stat_st_mtim_tv_nsec
2225     struct_v4l2_frmivalenum_discrete
2226 "
2227
2228 HAVE_LIST="
2229     $ARCH_EXT_LIST
2230     $(add_suffix _external $ARCH_EXT_LIST)
2231     $(add_suffix _inline   $ARCH_EXT_LIST)
2232     $ARCH_FEATURES
2233     $BUILTIN_LIST
2234     $COMPLEX_FUNCS
2235     $HAVE_LIST_CMDLINE
2236     $HAVE_LIST_PUB
2237     $HEADERS_LIST
2238     $INTRINSICS_LIST
2239     $MATH_FUNCS
2240     $SYSTEM_FEATURES
2241     $SYSTEM_FUNCS
2242     $SYSTEM_LIBRARIES
2243     $THREADS_LIST
2244     $TOOLCHAIN_FEATURES
2245     $TYPES_LIST
2246     makeinfo
2247     makeinfo_html
2248     opencl_d3d11
2249     opencl_drm_arm
2250     opencl_drm_beignet
2251     opencl_dxva2
2252     opencl_vaapi_beignet
2253     opencl_vaapi_intel_media
2254     perl
2255     pod2man
2256     texi2html
2257 "
2258
2259 # options emitted with CONFIG_ prefix but not available on the command line
2260 CONFIG_EXTRA="
2261     aandcttables
2262     ac3dsp
2263     adts_header
2264     audio_frame_queue
2265     audiodsp
2266     blockdsp
2267     bswapdsp
2268     cabac
2269     cbs
2270     cbs_h264
2271     cbs_h265
2272     cbs_mpeg2
2273     cbs_vp9
2274     dirac_parse
2275     dnn
2276     dvprofile
2277     exif
2278     faandct
2279     faanidct
2280     fdctdsp
2281     flacdsp
2282     fmtconvert
2283     frame_thread_encoder
2284     g722dsp
2285     golomb
2286     gplv3
2287     h263dsp
2288     h264chroma
2289     h264dsp
2290     h264parse
2291     h264pred
2292     h264qpel
2293     hevcparse
2294     hpeldsp
2295     huffman
2296     huffyuvdsp
2297     huffyuvencdsp
2298     idctdsp
2299     iirfilter
2300     mdct15
2301     intrax8
2302     iso_media
2303     ividsp
2304     jpegtables
2305     lgplv3
2306     libx262
2307     llauddsp
2308     llviddsp
2309     llvidencdsp
2310     lpc
2311     lzf
2312     me_cmp
2313     mpeg_er
2314     mpegaudio
2315     mpegaudiodsp
2316     mpegaudioheader
2317     mpegvideo
2318     mpegvideoenc
2319     mss34dsp
2320     pixblockdsp
2321     qpeldsp
2322     qsv
2323     qsvdec
2324     qsvenc
2325     qsvvpp
2326     rangecoder
2327     riffdec
2328     riffenc
2329     rtpdec
2330     rtpenc_chain
2331     rv34dsp
2332     sinewin
2333     snappy
2334     srtp
2335     startcode
2336     texturedsp
2337     texturedspenc
2338     tpeldsp
2339     vaapi_1
2340     vaapi_encode
2341     vc1dsp
2342     videodsp
2343     vp3dsp
2344     vp56dsp
2345     vp8dsp
2346     wma_freqs
2347     wmv2dsp
2348 "
2349
2350 CMDLINE_SELECT="
2351     $ARCH_EXT_LIST
2352     $CONFIG_LIST
2353     $HAVE_LIST_CMDLINE
2354     $THREADS_LIST
2355     asm
2356     cross_compile
2357     debug
2358     extra_warnings
2359     logging
2360     lto
2361     optimizations
2362     rpath
2363     stripping
2364 "
2365
2366 PATHS_LIST="
2367     bindir
2368     datadir
2369     docdir
2370     incdir
2371     libdir
2372     mandir
2373     pkgconfigdir
2374     prefix
2375     shlibdir
2376     install_name_dir
2377 "
2378
2379 CMDLINE_SET="
2380     $PATHS_LIST
2381     ar
2382     arch
2383     as
2384     assert_level
2385     build_suffix
2386     cc
2387     objcc
2388     cpu
2389     cross_prefix
2390     custom_allocator
2391     cxx
2392     dep_cc
2393     doxygen
2394     env
2395     extra_version
2396     gas
2397     host_cc
2398     host_cflags
2399     host_extralibs
2400     host_ld
2401     host_ldflags
2402     host_os
2403     ignore_tests
2404     install
2405     ld
2406     ln_s
2407     logfile
2408     malloc_prefix
2409     nm
2410     optflags
2411     nvcc
2412     nvccflags
2413     pkg_config
2414     pkg_config_flags
2415     progs_suffix
2416     random_seed
2417     ranlib
2418     samples
2419     strip
2420     sws_max_filter_size
2421     sysinclude
2422     sysroot
2423     target_exec
2424     target_os
2425     target_path
2426     target_samples
2427     tempprefix
2428     toolchain
2429     valgrind
2430     x86asmexe
2431 "
2432
2433 CMDLINE_APPEND="
2434     extra_cflags
2435     extra_cxxflags
2436     extra_objcflags
2437     host_cppflags
2438 "
2439
2440 # code dependency declarations
2441
2442 # architecture extensions
2443
2444 armv5te_deps="arm"
2445 armv6_deps="arm"
2446 armv6t2_deps="arm"
2447 armv8_deps="aarch64"
2448 neon_deps_any="aarch64 arm"
2449 intrinsics_neon_deps="neon"
2450 vfp_deps_any="aarch64 arm"
2451 vfpv3_deps="vfp"
2452 setend_deps="arm"
2453
2454 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2455
2456 altivec_deps="ppc"
2457 dcbzl_deps="ppc"
2458 ldbrx_deps="ppc"
2459 ppc4xx_deps="ppc"
2460 vsx_deps="altivec"
2461 power8_deps="vsx"
2462
2463 loongson2_deps="mips"
2464 loongson3_deps="mips"
2465 mips32r2_deps="mips"
2466 mips32r5_deps="mips"
2467 mips32r6_deps="mips"
2468 mips64r2_deps="mips"
2469 mips64r6_deps="mips"
2470 mipsfpu_deps="mips"
2471 mipsdsp_deps="mips"
2472 mipsdspr2_deps="mips"
2473 mmi_deps="mips"
2474 msa_deps="mipsfpu"
2475
2476 cpunop_deps="i686"
2477 x86_64_select="i686"
2478 x86_64_suggest="fast_cmov"
2479
2480 amd3dnow_deps="mmx"
2481 amd3dnowext_deps="amd3dnow"
2482 i686_deps="x86"
2483 mmx_deps="x86"
2484 mmxext_deps="mmx"
2485 sse_deps="mmxext"
2486 sse2_deps="sse"
2487 sse3_deps="sse2"
2488 ssse3_deps="sse3"
2489 sse4_deps="ssse3"
2490 sse42_deps="sse4"
2491 aesni_deps="sse42"
2492 avx_deps="sse42"
2493 xop_deps="avx"
2494 fma3_deps="avx"
2495 fma4_deps="avx"
2496 avx2_deps="avx"
2497 avx512_deps="avx2"
2498
2499 mmx_external_deps="x86asm"
2500 mmx_inline_deps="inline_asm x86"
2501 mmx_suggest="mmx_external mmx_inline"
2502
2503 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2504     eval dep=\$${ext}_deps
2505     eval ${ext}_external_deps='"${dep}_external"'
2506     eval ${ext}_inline_deps='"${dep}_inline"'
2507     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2508 done
2509
2510 aligned_stack_if_any="aarch64 ppc x86"
2511 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2512 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2513 fast_unaligned_if_any="aarch64 ppc x86"
2514 simd_align_16_if_any="altivec neon sse"
2515 simd_align_32_if_any="avx"
2516 simd_align_64_if_any="avx512"
2517
2518 # system capabilities
2519 linux_perf_deps="linux_perf_event_h"
2520 symver_if_any="symver_asm_label symver_gnu_asm"
2521 valgrind_backtrace_conflict="optimizations"
2522 valgrind_backtrace_deps="valgrind_valgrind_h"
2523
2524 # threading support
2525 atomics_gcc_if="sync_val_compare_and_swap"
2526 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2527 atomics_win32_if="MemoryBarrier"
2528 atomics_native_if_any="$ATOMICS_LIST"
2529 w32threads_deps="atomics_native"
2530 threads_if_any="$THREADS_LIST"
2531
2532 # subsystems
2533 cbs_h264_select="cbs golomb"
2534 cbs_h265_select="cbs golomb"
2535 cbs_mpeg2_select="cbs"
2536 cbs_vp9_select="cbs"
2537 dct_select="rdft"
2538 dirac_parse_select="golomb"
2539 dnn_suggest="libtensorflow"
2540 error_resilience_select="me_cmp"
2541 faandct_deps="faan"
2542 faandct_select="fdctdsp"
2543 faanidct_deps="faan"
2544 faanidct_select="idctdsp"
2545 h264dsp_select="startcode"
2546 hevcparse_select="golomb"
2547 frame_thread_encoder_deps="encoders threads"
2548 intrax8_select="blockdsp idctdsp"
2549 mdct_select="fft"
2550 mdct15_select="fft"
2551 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2552 mpeg_er_select="error_resilience"
2553 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2554 mpegaudiodsp_select="dct"
2555 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2556 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2557 vc1dsp_select="h264chroma qpeldsp startcode"
2558 rdft_select="fft"
2559
2560 # decoders / encoders
2561 aac_decoder_select="adts_header mdct15 mdct sinewin"
2562 aac_fixed_decoder_select="adts_header mdct sinewin"
2563 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2564 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2565 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2566 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2567 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2568 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2569 adpcm_g722_decoder_select="g722dsp"
2570 adpcm_g722_encoder_select="g722dsp"
2571 aic_decoder_select="golomb idctdsp"
2572 alac_encoder_select="lpc"
2573 als_decoder_select="bswapdsp"
2574 amrnb_decoder_select="lsp"
2575 amrwb_decoder_select="lsp"
2576 amv_decoder_select="sp5x_decoder exif"
2577 amv_encoder_select="jpegtables mpegvideoenc"
2578 ape_decoder_select="bswapdsp llauddsp"
2579 apng_decoder_deps="zlib"
2580 apng_encoder_deps="zlib"
2581 apng_encoder_select="llvidencdsp"
2582 aptx_decoder_select="audio_frame_queue"
2583 aptx_encoder_select="audio_frame_queue"
2584 aptx_hd_decoder_select="audio_frame_queue"
2585 aptx_hd_encoder_select="audio_frame_queue"
2586 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2587 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2588 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2589 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2590 atrac1_decoder_select="mdct sinewin"
2591 atrac3_decoder_select="mdct"
2592 atrac3p_decoder_select="mdct sinewin"
2593 atrac9_decoder_select="mdct"
2594 avrn_decoder_select="exif jpegtables"
2595 bink_decoder_select="blockdsp hpeldsp"
2596 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2597 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2598 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2599 clearvideo_decoder_select="idctdsp"
2600 cllc_decoder_select="bswapdsp"
2601 comfortnoise_encoder_select="lpc"
2602 cook_decoder_select="audiodsp mdct sinewin"
2603 cscd_decoder_select="lzo"
2604 cscd_decoder_suggest="zlib"
2605 dca_decoder_select="mdct"
2606 dds_decoder_select="texturedsp"
2607 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2608 dnxhd_decoder_select="blockdsp idctdsp"
2609 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2610 dolby_e_decoder_select="mdct"
2611 dvvideo_decoder_select="dvprofile idctdsp"
2612 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2613 dxa_decoder_deps="zlib"
2614 dxv_decoder_select="lzf texturedsp"
2615 eac3_decoder_select="ac3_decoder"
2616 eac3_encoder_select="ac3_encoder"
2617 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2618 eatgq_decoder_select="aandcttables"
2619 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2620 exr_decoder_deps="zlib"
2621 ffv1_decoder_select="rangecoder"
2622 ffv1_encoder_select="rangecoder"
2623 ffvhuff_decoder_select="huffyuv_decoder"
2624 ffvhuff_encoder_select="huffyuv_encoder"
2625 fic_decoder_select="golomb"
2626 flac_decoder_select="flacdsp"
2627 flac_encoder_select="bswapdsp flacdsp lpc"
2628 flashsv2_decoder_deps="zlib"
2629 flashsv2_encoder_deps="zlib"
2630 flashsv_decoder_deps="zlib"
2631 flashsv_encoder_deps="zlib"
2632 flv_decoder_select="h263_decoder"
2633 flv_encoder_select="h263_encoder"
2634 fourxm_decoder_select="blockdsp bswapdsp"
2635 fraps_decoder_select="bswapdsp huffman"
2636 g2m_decoder_deps="zlib"
2637 g2m_decoder_select="blockdsp idctdsp jpegtables"
2638 g729_decoder_select="audiodsp"
2639 h261_decoder_select="mpegvideo"
2640 h261_encoder_select="mpegvideoenc"
2641 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2642 h263_encoder_select="h263dsp mpegvideoenc"
2643 h263i_decoder_select="h263_decoder"
2644 h263p_decoder_select="h263_decoder"
2645 h263p_encoder_select="h263_encoder"
2646 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2647 h264_decoder_suggest="error_resilience"
2648 hap_decoder_select="snappy texturedsp"
2649 hap_encoder_deps="libsnappy"
2650 hap_encoder_select="texturedspenc"
2651 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2652 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2653 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2654 iac_decoder_select="imc_decoder"
2655 imc_decoder_select="bswapdsp fft mdct sinewin"
2656 indeo3_decoder_select="hpeldsp"
2657 indeo4_decoder_select="ividsp"
2658 indeo5_decoder_select="ividsp"
2659 interplay_video_decoder_select="hpeldsp"
2660 jpegls_decoder_select="mjpeg_decoder"
2661 jv_decoder_select="blockdsp"
2662 lagarith_decoder_select="llviddsp"
2663 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2664 magicyuv_decoder_select="llviddsp"
2665 magicyuv_encoder_select="llvidencdsp"
2666 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2667 metasound_decoder_select="lsp mdct sinewin"
2668 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2669 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2670 mjpeg_encoder_select="jpegtables mpegvideoenc"
2671 mjpegb_decoder_select="mjpeg_decoder"
2672 mlp_decoder_select="mlp_parser"
2673 mlp_encoder_select="lpc"
2674 motionpixels_decoder_select="bswapdsp"
2675 mp1_decoder_select="mpegaudio"
2676 mp1float_decoder_select="mpegaudio"
2677 mp2_decoder_select="mpegaudio"
2678 mp2float_decoder_select="mpegaudio"
2679 mp3_decoder_select="mpegaudio"
2680 mp3adu_decoder_select="mpegaudio"
2681 mp3adufloat_decoder_select="mpegaudio"
2682 mp3float_decoder_select="mpegaudio"
2683 mp3on4_decoder_select="mpegaudio"
2684 mp3on4float_decoder_select="mpegaudio"
2685 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2686 mpc8_decoder_select="mpegaudiodsp"
2687 mpegvideo_decoder_select="mpegvideo"
2688 mpeg1video_decoder_select="mpegvideo"
2689 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2690 mpeg2video_decoder_select="mpegvideo"
2691 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2692 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2693 mpeg4_encoder_select="h263_encoder"
2694 msa1_decoder_select="mss34dsp"
2695 mscc_decoder_deps="zlib"
2696 msmpeg4v1_decoder_select="h263_decoder"
2697 msmpeg4v2_decoder_select="h263_decoder"
2698 msmpeg4v2_encoder_select="h263_encoder"
2699 msmpeg4v3_decoder_select="h263_decoder"
2700 msmpeg4v3_encoder_select="h263_encoder"
2701 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2702 mts2_decoder_select="mss34dsp"
2703 mwsc_decoder_deps="zlib"
2704 mxpeg_decoder_select="mjpeg_decoder"
2705 nellymoser_decoder_select="mdct sinewin"
2706 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2707 nuv_decoder_select="idctdsp lzo"
2708 on2avc_decoder_select="mdct"
2709 opus_decoder_deps="swresample"
2710 opus_decoder_select="mdct15"
2711 opus_encoder_select="audio_frame_queue mdct15"
2712 png_decoder_deps="zlib"
2713 png_encoder_deps="zlib"
2714 png_encoder_select="llvidencdsp"
2715 prores_decoder_select="blockdsp idctdsp"
2716 prores_encoder_select="fdctdsp"
2717 qcelp_decoder_select="lsp"
2718 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2719 ra_144_decoder_select="audiodsp"
2720 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2721 ralf_decoder_select="golomb"
2722 rasc_decoder_deps="zlib"
2723 rawvideo_decoder_select="bswapdsp"
2724 rscc_decoder_deps="zlib"
2725 rtjpeg_decoder_select="me_cmp"
2726 rv10_decoder_select="h263_decoder"
2727 rv10_encoder_select="h263_encoder"
2728 rv20_decoder_select="h263_decoder"
2729 rv20_encoder_select="h263_encoder"
2730 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2731 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2732 screenpresso_decoder_deps="zlib"
2733 shorten_decoder_select="bswapdsp"
2734 sipr_decoder_select="lsp"
2735 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2736 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2737 sonic_decoder_select="golomb rangecoder"
2738 sonic_encoder_select="golomb rangecoder"
2739 sonic_ls_encoder_select="golomb rangecoder"
2740 sp5x_decoder_select="mjpeg_decoder"
2741 srgc_decoder_deps="zlib"
2742 svq1_decoder_select="hpeldsp"
2743 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2744 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2745 svq3_decoder_suggest="zlib"
2746 tak_decoder_select="audiodsp"
2747 tdsc_decoder_deps="zlib"
2748 tdsc_decoder_select="mjpeg_decoder"
2749 theora_decoder_select="vp3_decoder"
2750 thp_decoder_select="mjpeg_decoder"
2751 tiff_decoder_suggest="zlib lzma"
2752 tiff_encoder_suggest="zlib"
2753 truehd_decoder_select="mlp_parser"
2754 truehd_encoder_select="lpc"
2755 truemotion2_decoder_select="bswapdsp"
2756 truespeech_decoder_select="bswapdsp"
2757 tscc_decoder_deps="zlib"
2758 twinvq_decoder_select="mdct lsp sinewin"
2759 txd_decoder_select="texturedsp"
2760 utvideo_decoder_select="bswapdsp llviddsp"
2761 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2762 vble_decoder_select="llviddsp"
2763 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2764 vc1image_decoder_select="vc1_decoder"
2765 vorbis_decoder_select="mdct"
2766 vorbis_encoder_select="audio_frame_queue mdct"
2767 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2768 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2769 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2770 vp6a_decoder_select="vp6_decoder"
2771 vp6f_decoder_select="vp6_decoder"
2772 vp7_decoder_select="h264pred videodsp vp8dsp"
2773 vp8_decoder_select="h264pred videodsp vp8dsp"
2774 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2775 wcmv_decoder_deps="zlib"
2776 webp_decoder_select="vp8_decoder exif"
2777 wmalossless_decoder_select="llauddsp"
2778 wmapro_decoder_select="mdct sinewin wma_freqs"
2779 wmav1_decoder_select="mdct sinewin wma_freqs"
2780 wmav1_encoder_select="mdct sinewin wma_freqs"
2781 wmav2_decoder_select="mdct sinewin wma_freqs"
2782 wmav2_encoder_select="mdct sinewin wma_freqs"
2783 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2784 wmv1_decoder_select="h263_decoder"
2785 wmv1_encoder_select="h263_encoder"
2786 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2787 wmv2_encoder_select="h263_encoder wmv2dsp"
2788 wmv3_decoder_select="vc1_decoder"
2789 wmv3image_decoder_select="wmv3_decoder"
2790 xma1_decoder_select="wmapro_decoder"
2791 xma2_decoder_select="wmapro_decoder"
2792 zerocodec_decoder_deps="zlib"
2793 zlib_decoder_deps="zlib"
2794 zlib_encoder_deps="zlib"
2795 zmbv_decoder_deps="zlib"
2796 zmbv_encoder_deps="zlib"
2797
2798 # hardware accelerators
2799 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2800 cuda_deps="ffnvcodec"
2801 cuvid_deps="ffnvcodec"
2802 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2803 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2804 ffnvcodec_deps_any="libdl LoadLibrary"
2805 nvdec_deps="ffnvcodec"
2806 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2807 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2808 xvmc_deps="X11_extensions_XvMClib_h"
2809
2810 h263_vaapi_hwaccel_deps="vaapi"
2811 h263_vaapi_hwaccel_select="h263_decoder"
2812 h263_videotoolbox_hwaccel_deps="videotoolbox"
2813 h263_videotoolbox_hwaccel_select="h263_decoder"
2814 h264_d3d11va_hwaccel_deps="d3d11va"
2815 h264_d3d11va_hwaccel_select="h264_decoder"
2816 h264_d3d11va2_hwaccel_deps="d3d11va"
2817 h264_d3d11va2_hwaccel_select="h264_decoder"
2818 h264_dxva2_hwaccel_deps="dxva2"
2819 h264_dxva2_hwaccel_select="h264_decoder"
2820 h264_nvdec_hwaccel_deps="nvdec"
2821 h264_nvdec_hwaccel_select="h264_decoder"
2822 h264_vaapi_hwaccel_deps="vaapi"
2823 h264_vaapi_hwaccel_select="h264_decoder"
2824 h264_vdpau_hwaccel_deps="vdpau"
2825 h264_vdpau_hwaccel_select="h264_decoder"
2826 h264_videotoolbox_hwaccel_deps="videotoolbox"
2827 h264_videotoolbox_hwaccel_select="h264_decoder"
2828 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2829 hevc_d3d11va_hwaccel_select="hevc_decoder"
2830 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2831 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2832 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2833 hevc_dxva2_hwaccel_select="hevc_decoder"
2834 hevc_nvdec_hwaccel_deps="nvdec"
2835 hevc_nvdec_hwaccel_select="hevc_decoder"
2836 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2837 hevc_vaapi_hwaccel_select="hevc_decoder"
2838 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2839 hevc_vdpau_hwaccel_select="hevc_decoder"
2840 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2841 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2842 mjpeg_nvdec_hwaccel_deps="nvdec"
2843 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2844 mjpeg_vaapi_hwaccel_deps="vaapi"
2845 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2846 mpeg_xvmc_hwaccel_deps="xvmc"
2847 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2848 mpeg1_nvdec_hwaccel_deps="nvdec"
2849 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2850 mpeg1_vdpau_hwaccel_deps="vdpau"
2851 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2852 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2853 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2854 mpeg1_xvmc_hwaccel_deps="xvmc"
2855 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2856 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2857 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2858 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2859 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2860 mpeg2_dxva2_hwaccel_deps="dxva2"
2861 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2862 mpeg2_nvdec_hwaccel_deps="nvdec"
2863 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2864 mpeg2_vaapi_hwaccel_deps="vaapi"
2865 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2866 mpeg2_vdpau_hwaccel_deps="vdpau"
2867 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2868 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2869 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2870 mpeg2_xvmc_hwaccel_deps="xvmc"
2871 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2872 mpeg4_nvdec_hwaccel_deps="nvdec"
2873 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2874 mpeg4_vaapi_hwaccel_deps="vaapi"
2875 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2876 mpeg4_vdpau_hwaccel_deps="vdpau"
2877 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2878 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2879 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2880 vc1_d3d11va_hwaccel_deps="d3d11va"
2881 vc1_d3d11va_hwaccel_select="vc1_decoder"
2882 vc1_d3d11va2_hwaccel_deps="d3d11va"
2883 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2884 vc1_dxva2_hwaccel_deps="dxva2"
2885 vc1_dxva2_hwaccel_select="vc1_decoder"
2886 vc1_nvdec_hwaccel_deps="nvdec"
2887 vc1_nvdec_hwaccel_select="vc1_decoder"
2888 vc1_vaapi_hwaccel_deps="vaapi"
2889 vc1_vaapi_hwaccel_select="vc1_decoder"
2890 vc1_vdpau_hwaccel_deps="vdpau"
2891 vc1_vdpau_hwaccel_select="vc1_decoder"
2892 vp8_nvdec_hwaccel_deps="nvdec"
2893 vp8_nvdec_hwaccel_select="vp8_decoder"
2894 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2895 vp8_vaapi_hwaccel_select="vp8_decoder"
2896 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2897 vp9_d3d11va_hwaccel_select="vp9_decoder"
2898 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2899 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2900 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2901 vp9_dxva2_hwaccel_select="vp9_decoder"
2902 vp9_nvdec_hwaccel_deps="nvdec"
2903 vp9_nvdec_hwaccel_select="vp9_decoder"
2904 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2905 vp9_vaapi_hwaccel_select="vp9_decoder"
2906 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2907 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2908 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2909 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2910 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2911 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2912
2913 # hardware-accelerated codecs
2914 omx_deps="libdl pthreads"
2915 omx_rpi_select="omx"
2916 qsv_deps="libmfx"
2917 qsvdec_select="qsv"
2918 qsvenc_select="qsv"
2919 qsvvpp_select="qsv"
2920 vaapi_encode_deps="vaapi"
2921 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2922
2923 hwupload_cuda_filter_deps="ffnvcodec"
2924 scale_npp_filter_deps="ffnvcodec libnpp"
2925 scale_cuda_filter_deps="cuda_sdk"
2926 thumbnail_cuda_filter_deps="cuda_sdk"
2927
2928 amf_deps_any="libdl LoadLibrary"
2929 nvenc_deps="ffnvcodec"
2930 nvenc_deps_any="libdl LoadLibrary"
2931 nvenc_encoder_deps="nvenc"
2932
2933 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2934 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2935 h264_amf_encoder_deps="amf"
2936 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2937 h264_cuvid_decoder_deps="cuvid"
2938 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2939 h264_mediacodec_decoder_deps="mediacodec"
2940 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2941 h264_mmal_decoder_deps="mmal"
2942 h264_nvenc_encoder_deps="nvenc"
2943 h264_omx_encoder_deps="omx"
2944 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2945 h264_qsv_encoder_select="qsvenc"
2946 h264_rkmpp_decoder_deps="rkmpp"
2947 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2948 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2949 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2950 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2951 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2952 hevc_amf_encoder_deps="amf"
2953 hevc_cuvid_decoder_deps="cuvid"
2954 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2955 hevc_mediacodec_decoder_deps="mediacodec"
2956 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2957 hevc_nvenc_encoder_deps="nvenc"
2958 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2959 hevc_qsv_encoder_select="hevcparse qsvenc"
2960 hevc_rkmpp_decoder_deps="rkmpp"
2961 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2962 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2963 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2964 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2965 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2966 mjpeg_cuvid_decoder_deps="cuvid"
2967 mjpeg_qsv_encoder_deps="libmfx"
2968 mjpeg_qsv_encoder_select="qsvenc"
2969 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2970 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2971 mpeg1_cuvid_decoder_deps="cuvid"
2972 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2973 mpeg2_crystalhd_decoder_select="crystalhd"
2974 mpeg2_cuvid_decoder_deps="cuvid"
2975 mpeg2_mmal_decoder_deps="mmal"
2976 mpeg2_mediacodec_decoder_deps="mediacodec"
2977 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2978 mpeg2_qsv_encoder_select="qsvenc"
2979 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2980 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2981 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2982 mpeg4_crystalhd_decoder_select="crystalhd"
2983 mpeg4_cuvid_decoder_deps="cuvid"
2984 mpeg4_mediacodec_decoder_deps="mediacodec"
2985 mpeg4_mmal_decoder_deps="mmal"
2986 mpeg4_omx_encoder_deps="omx"
2987 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2988 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2989 msmpeg4_crystalhd_decoder_select="crystalhd"
2990 nvenc_h264_encoder_select="h264_nvenc_encoder"
2991 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2992 vc1_crystalhd_decoder_select="crystalhd"
2993 vc1_cuvid_decoder_deps="cuvid"
2994 vc1_mmal_decoder_deps="mmal"
2995 vc1_qsv_decoder_select="qsvdec vc1_parser"
2996 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2997 vp8_cuvid_decoder_deps="cuvid"
2998 vp8_mediacodec_decoder_deps="mediacodec"
2999 vp8_qsv_decoder_select="qsvdec vp8_parser"
3000 vp8_rkmpp_decoder_deps="rkmpp"
3001 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3002 vp8_vaapi_encoder_select="vaapi_encode"
3003 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3004 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3005 vp9_cuvid_decoder_deps="cuvid"
3006 vp9_mediacodec_decoder_deps="mediacodec"
3007 vp9_rkmpp_decoder_deps="rkmpp"
3008 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3009 vp9_vaapi_encoder_select="vaapi_encode"
3010 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3011 wmv3_crystalhd_decoder_select="crystalhd"
3012
3013 # parsers
3014 aac_parser_select="adts_header"
3015 h264_parser_select="golomb h264dsp h264parse"
3016 hevc_parser_select="hevcparse"
3017 mpegaudio_parser_select="mpegaudioheader"
3018 mpegvideo_parser_select="mpegvideo"
3019 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3020 vc1_parser_select="vc1dsp"
3021
3022 # bitstream_filters
3023 aac_adtstoasc_bsf_select="adts_header"
3024 eac3_core_bsf_select="ac3_parser"
3025 filter_units_bsf_select="cbs"
3026 h264_metadata_bsf_deps="const_nan"
3027 h264_metadata_bsf_select="cbs_h264"
3028 h264_redundant_pps_bsf_select="cbs_h264"
3029 hevc_metadata_bsf_select="cbs_h265"
3030 mjpeg2jpeg_bsf_select="jpegtables"
3031 mpeg2_metadata_bsf_select="cbs_mpeg2"
3032 trace_headers_bsf_select="cbs"
3033 vp9_metadata_bsf_select="cbs_vp9"
3034
3035 # external libraries
3036 aac_at_decoder_deps="audiotoolbox"
3037 aac_at_decoder_select="aac_adtstoasc_bsf"
3038 ac3_at_decoder_deps="audiotoolbox"
3039 ac3_at_decoder_select="ac3_parser"
3040 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3041 alac_at_decoder_deps="audiotoolbox"
3042 amr_nb_at_decoder_deps="audiotoolbox"
3043 avisynth_deps_any="libdl LoadLibrary"
3044 avisynth_demuxer_deps="avisynth"
3045 avisynth_demuxer_select="riffdec"
3046 eac3_at_decoder_deps="audiotoolbox"
3047 eac3_at_decoder_select="ac3_parser"
3048 gsm_ms_at_decoder_deps="audiotoolbox"
3049 ilbc_at_decoder_deps="audiotoolbox"
3050 mp1_at_decoder_deps="audiotoolbox"
3051 mp2_at_decoder_deps="audiotoolbox"
3052 mp3_at_decoder_deps="audiotoolbox"
3053 mp1_at_decoder_select="mpegaudioheader"
3054 mp2_at_decoder_select="mpegaudioheader"
3055 mp3_at_decoder_select="mpegaudioheader"
3056 pcm_alaw_at_decoder_deps="audiotoolbox"
3057 pcm_mulaw_at_decoder_deps="audiotoolbox"
3058 qdmc_at_decoder_deps="audiotoolbox"
3059 qdm2_at_decoder_deps="audiotoolbox"
3060 aac_at_encoder_deps="audiotoolbox"
3061 aac_at_encoder_select="audio_frame_queue"
3062 alac_at_encoder_deps="audiotoolbox"
3063 alac_at_encoder_select="audio_frame_queue"
3064 ilbc_at_encoder_deps="audiotoolbox"
3065 ilbc_at_encoder_select="audio_frame_queue"
3066 pcm_alaw_at_encoder_deps="audiotoolbox"
3067 pcm_alaw_at_encoder_select="audio_frame_queue"
3068 pcm_mulaw_at_encoder_deps="audiotoolbox"
3069 pcm_mulaw_at_encoder_select="audio_frame_queue"
3070 chromaprint_muxer_deps="chromaprint"
3071 h264_videotoolbox_encoder_deps="pthreads"
3072 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3073 hevc_videotoolbox_encoder_deps="pthreads"
3074 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3075 libaom_av1_decoder_deps="libaom"
3076 libaom_av1_encoder_deps="libaom"
3077 libaom_av1_encoder_select="extract_extradata_bsf"
3078 libcelt_decoder_deps="libcelt"
3079 libcodec2_decoder_deps="libcodec2"
3080 libcodec2_encoder_deps="libcodec2"
3081 libdavs2_decoder_deps="libdavs2"
3082 libfdk_aac_decoder_deps="libfdk_aac"
3083 libfdk_aac_encoder_deps="libfdk_aac"
3084 libfdk_aac_encoder_select="audio_frame_queue"
3085 libgme_demuxer_deps="libgme"
3086 libgsm_decoder_deps="libgsm"
3087 libgsm_encoder_deps="libgsm"
3088 libgsm_ms_decoder_deps="libgsm"
3089 libgsm_ms_encoder_deps="libgsm"
3090 libilbc_decoder_deps="libilbc"
3091 libilbc_encoder_deps="libilbc"
3092 libkvazaar_encoder_deps="libkvazaar"
3093 libmodplug_demuxer_deps="libmodplug"
3094 libmp3lame_encoder_deps="libmp3lame"
3095 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3096 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3097 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3098 libopencore_amrnb_encoder_select="audio_frame_queue"
3099 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3100 libopenh264_decoder_deps="libopenh264"
3101 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3102 libopenh264_encoder_deps="libopenh264"
3103 libopenjpeg_decoder_deps="libopenjpeg"
3104 libopenjpeg_encoder_deps="libopenjpeg"
3105 libopenmpt_demuxer_deps="libopenmpt"
3106 libopus_decoder_deps="libopus"
3107 libopus_encoder_deps="libopus"
3108 libopus_encoder_select="audio_frame_queue"
3109 librsvg_decoder_deps="librsvg"
3110 libshine_encoder_deps="libshine"
3111 libshine_encoder_select="audio_frame_queue"
3112 libspeex_decoder_deps="libspeex"
3113 libspeex_encoder_deps="libspeex"
3114 libspeex_encoder_select="audio_frame_queue"
3115 libtheora_encoder_deps="libtheora"
3116 libtwolame_encoder_deps="libtwolame"
3117 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3118 libvorbis_decoder_deps="libvorbis"
3119 libvorbis_encoder_deps="libvorbis libvorbisenc"
3120 libvorbis_encoder_select="audio_frame_queue"
3121 libvpx_vp8_decoder_deps="libvpx"
3122 libvpx_vp8_encoder_deps="libvpx"
3123 libvpx_vp9_decoder_deps="libvpx"
3124 libvpx_vp9_encoder_deps="libvpx"
3125 libwavpack_encoder_deps="libwavpack"
3126 libwavpack_encoder_select="audio_frame_queue"
3127 libwebp_encoder_deps="libwebp"
3128 libwebp_anim_encoder_deps="libwebp"
3129 libx262_encoder_deps="libx262"
3130 libx264_encoder_deps="libx264"
3131 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3132 libx264rgb_encoder_select="libx264_encoder"
3133 libx265_encoder_deps="libx265"
3134 libxavs_encoder_deps="libxavs"
3135 libxvid_encoder_deps="libxvid"
3136 libzvbi_teletext_decoder_deps="libzvbi"
3137 vapoursynth_demuxer_deps="vapoursynth"
3138 videotoolbox_suggest="coreservices"
3139 videotoolbox_deps="corefoundation coremedia corevideo"
3140 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3141
3142 # demuxers / muxers
3143 ac3_demuxer_select="ac3_parser"
3144 aiff_muxer_select="iso_media"
3145 asf_demuxer_select="riffdec"
3146 asf_o_demuxer_select="riffdec"
3147 asf_muxer_select="riffenc"
3148 asf_stream_muxer_select="asf_muxer"
3149 avi_demuxer_select="iso_media riffdec exif"
3150 avi_muxer_select="riffenc"
3151 caf_demuxer_select="iso_media riffdec"
3152 caf_muxer_select="iso_media"
3153 dash_muxer_select="mp4_muxer"
3154 dash_demuxer_deps="libxml2"
3155 dirac_demuxer_select="dirac_parser"
3156 dts_demuxer_select="dca_parser"
3157 dtshd_demuxer_select="dca_parser"
3158 dv_demuxer_select="dvprofile"
3159 dv_muxer_select="dvprofile"
3160 dxa_demuxer_select="riffdec"
3161 eac3_demuxer_select="ac3_parser"
3162 f4v_muxer_select="mov_muxer"
3163 fifo_muxer_deps="threads"
3164 flac_demuxer_select="flac_parser"
3165 hds_muxer_select="flv_muxer"
3166 hls_muxer_select="mpegts_muxer"
3167 hls_muxer_suggest="gcrypt openssl"
3168 image2_alias_pix_demuxer_select="image2_demuxer"
3169 image2_brender_pix_demuxer_select="image2_demuxer"
3170 ipod_muxer_select="mov_muxer"
3171 ismv_muxer_select="mov_muxer"
3172 matroska_audio_muxer_select="matroska_muxer"
3173 matroska_demuxer_select="iso_media riffdec"
3174 matroska_demuxer_suggest="bzlib lzo zlib"
3175 matroska_muxer_select="iso_media riffenc"
3176 mmf_muxer_select="riffenc"
3177 mov_demuxer_select="iso_media riffdec"
3178 mov_demuxer_suggest="zlib"
3179 mov_muxer_select="iso_media riffenc rtpenc_chain"
3180 mp3_demuxer_select="mpegaudio_parser"
3181 mp3_muxer_select="mpegaudioheader"
3182 mp4_muxer_select="mov_muxer"
3183 mpegts_demuxer_select="iso_media"
3184 mpegts_muxer_select="adts_muxer latm_muxer"
3185 mpegtsraw_demuxer_select="mpegts_demuxer"
3186 mxf_d10_muxer_select="mxf_muxer"
3187 mxf_opatom_muxer_select="mxf_muxer"
3188 nut_muxer_select="riffenc"
3189 nuv_demuxer_select="riffdec"
3190 oga_muxer_select="ogg_muxer"
3191 ogg_demuxer_select="dirac_parse"
3192 ogv_muxer_select="ogg_muxer"
3193 opus_muxer_select="ogg_muxer"
3194 psp_muxer_select="mov_muxer"
3195 rtp_demuxer_select="sdp_demuxer"
3196 rtp_muxer_select="golomb"
3197 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3198 rtsp_demuxer_select="http_protocol rtpdec"
3199 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3200 sap_demuxer_select="sdp_demuxer"
3201 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3202 sdp_demuxer_select="rtpdec"
3203 smoothstreaming_muxer_select="ismv_muxer"
3204 spdif_demuxer_select="adts_header"
3205 spdif_muxer_select="adts_header"
3206 spx_muxer_select="ogg_muxer"
3207 swf_demuxer_suggest="zlib"
3208 tak_demuxer_select="tak_parser"
3209 tg2_muxer_select="mov_muxer"
3210 tgp_muxer_select="mov_muxer"
3211 vobsub_demuxer_select="mpegps_demuxer"
3212 w64_demuxer_select="wav_demuxer"
3213 w64_muxer_select="wav_muxer"
3214 wav_demuxer_select="riffdec"
3215 wav_muxer_select="riffenc"
3216 webm_muxer_select="iso_media riffenc"
3217 webm_dash_manifest_demuxer_select="matroska_demuxer"
3218 wtv_demuxer_select="mpegts_demuxer riffdec"
3219 wtv_muxer_select="mpegts_muxer riffenc"
3220 xmv_demuxer_select="riffdec"
3221 xwma_demuxer_select="riffdec"
3222
3223 # indevs / outdevs
3224 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3225 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3226 alsa_indev_deps="alsa"
3227 alsa_outdev_deps="alsa"
3228 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3229 avfoundation_indev_suggest="coregraphics applicationservices"
3230 avfoundation_indev_extralibs="-framework Foundation"
3231 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3232 caca_outdev_deps="libcaca"
3233 decklink_deps_any="libdl LoadLibrary"
3234 decklink_indev_deps="decklink threads"
3235 decklink_indev_extralibs="-lstdc++"
3236 decklink_outdev_deps="decklink threads"
3237 decklink_outdev_extralibs="-lstdc++"
3238 libndi_newtek_indev_deps="libndi_newtek"
3239 libndi_newtek_indev_extralibs="-lndi"
3240 libndi_newtek_outdev_deps="libndi_newtek"
3241 libndi_newtek_outdev_extralibs="-lndi"
3242 dshow_indev_deps="IBaseFilter"
3243 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3244 fbdev_indev_deps="linux_fb_h"
3245 fbdev_outdev_deps="linux_fb_h"
3246 gdigrab_indev_deps="CreateDIBSection"
3247 gdigrab_indev_extralibs="-lgdi32"
3248 gdigrab_indev_select="bmp_decoder"
3249 iec61883_indev_deps="libiec61883"
3250 jack_indev_deps="libjack"
3251 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3252 kmsgrab_indev_deps="libdrm"
3253 lavfi_indev_deps="avfilter"
3254 libcdio_indev_deps="libcdio"
3255 libdc1394_indev_deps="libdc1394"
3256 openal_indev_deps="openal"
3257 opengl_outdev_deps="opengl"
3258 oss_indev_deps_any="sys_soundcard_h"
3259 oss_outdev_deps_any="sys_soundcard_h"
3260 pulse_indev_deps="libpulse"
3261 pulse_outdev_deps="libpulse"
3262 sdl2_outdev_deps="sdl2"
3263 sndio_indev_deps="sndio"
3264 sndio_outdev_deps="sndio"
3265 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3266 v4l2_indev_suggest="libv4l2"
3267 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3268 v4l2_outdev_suggest="libv4l2"
3269 vfwcap_indev_deps="vfw32 vfwcap_defines"
3270 xcbgrab_indev_deps="libxcb"
3271 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3272 xv_outdev_deps="xlib"
3273
3274 # protocols
3275 async_protocol_deps="threads"
3276 bluray_protocol_deps="libbluray"
3277 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3278 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3279 ffrtmpcrypt_protocol_select="tcp_protocol"
3280 ffrtmphttp_protocol_conflict="librtmp_protocol"
3281 ffrtmphttp_protocol_select="http_protocol"
3282 ftp_protocol_select="tcp_protocol"
3283 gopher_protocol_select="network"
3284 http_protocol_select="tcp_protocol"
3285 http_protocol_suggest="zlib"
3286 httpproxy_protocol_select="tcp_protocol"
3287 httpproxy_protocol_suggest="zlib"
3288 https_protocol_select="tls_protocol"
3289 https_protocol_suggest="zlib"
3290 icecast_protocol_select="http_protocol"
3291 mmsh_protocol_select="http_protocol"
3292 mmst_protocol_select="network"
3293 rtmp_protocol_conflict="librtmp_protocol"
3294 rtmp_protocol_select="tcp_protocol"
3295 rtmp_protocol_suggest="zlib"
3296 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3297 rtmpe_protocol_suggest="zlib"
3298 rtmps_protocol_conflict="librtmp_protocol"
3299 rtmps_protocol_select="tls_protocol"
3300 rtmps_protocol_suggest="zlib"
3301 rtmpt_protocol_select="ffrtmphttp_protocol"
3302 rtmpt_protocol_suggest="zlib"
3303 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3304 rtmpte_protocol_suggest="zlib"
3305 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3306 rtmpts_protocol_suggest="zlib"
3307 rtp_protocol_select="udp_protocol"
3308 schannel_conflict="openssl gnutls libtls mbedtls"
3309 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3310 sctp_protocol_select="network"
3311 securetransport_conflict="openssl gnutls libtls mbedtls"
3312 srtp_protocol_select="rtp_protocol srtp"
3313 tcp_protocol_select="network"
3314 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3315 tls_protocol_select="tcp_protocol"
3316 udp_protocol_select="network"
3317 udplite_protocol_select="network"
3318 unix_protocol_deps="sys_un_h"
3319 unix_protocol_select="network"
3320
3321 # external library protocols
3322 librtmp_protocol_deps="librtmp"
3323 librtmpe_protocol_deps="librtmp"
3324 librtmps_protocol_deps="librtmp"
3325 librtmpt_protocol_deps="librtmp"
3326 librtmpte_protocol_deps="librtmp"
3327 libsmbclient_protocol_deps="libsmbclient gplv3"
3328 libsrt_protocol_deps="libsrt"
3329 libsrt_protocol_select="network"
3330 libssh_protocol_deps="libssh"
3331 libtls_conflict="openssl gnutls mbedtls"
3332
3333 # filters
3334 afftfilt_filter_deps="avcodec"
3335 afftfilt_filter_select="fft"
3336 afir_filter_deps="avcodec"
3337 afir_filter_select="fft"
3338 amovie_filter_deps="avcodec avformat"
3339 aresample_filter_deps="swresample"
3340 ass_filter_deps="libass"
3341 atempo_filter_deps="avcodec"
3342 atempo_filter_select="rdft"
3343 avgblur_opencl_filter_deps="opencl"
3344 azmq_filter_deps="libzmq"
3345 blackframe_filter_deps="gpl"
3346 boxblur_filter_deps="gpl"
3347 boxblur_opencl_filter_deps="opencl gpl"
3348 bs2b_filter_deps="libbs2b"
3349 colormatrix_filter_deps="gpl"
3350 convolution_opencl_filter_deps="opencl"
3351 convolve_filter_deps="avcodec"
3352 convolve_filter_select="fft"
3353 coreimage_filter_deps="coreimage appkit"
3354 coreimage_filter_extralibs="-framework OpenGL"
3355 coreimagesrc_filter_deps="coreimage appkit"
3356 coreimagesrc_filter_extralibs="-framework OpenGL"
3357 cover_rect_filter_deps="avcodec avformat gpl"
3358 cropdetect_filter_deps="gpl"
3359 deconvolve_filter_deps="avcodec"
3360 deconvolve_filter_select="fft"
3361 deinterlace_qsv_filter_deps="libmfx"
3362 deinterlace_vaapi_filter_deps="vaapi"
3363 delogo_filter_deps="gpl"
3364 denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3365 deshake_filter_select="pixelutils"
3366 dilation_opencl_filter_deps="opencl"
3367 drawtext_filter_deps="libfreetype"
3368 drawtext_filter_suggest="libfontconfig libfribidi"
3369 elbg_filter_deps="avcodec"
3370 eq_filter_deps="gpl"
3371 erosion_opencl_filter_deps="opencl"
3372 fftfilt_filter_deps="avcodec"
3373 fftfilt_filter_select="rdft"
3374 fftdnoiz_filter_deps="avcodec"
3375 fftdnoiz_filter_select="fft"
3376 find_rect_filter_deps="avcodec avformat gpl"
3377 firequalizer_filter_deps="avcodec"
3378 firequalizer_filter_select="rdft"
3379 flite_filter_deps="libflite"
3380 framerate_filter_select="pixelutils"
3381 frei0r_filter_deps="frei0r libdl"
3382 frei0r_src_filter_deps="frei0r libdl"
3383 fspp_filter_deps="gpl"
3384 geq_filter_deps="gpl"
3385 histeq_filter_deps="gpl"
3386 hqdn3d_filter_deps="gpl"
3387 interlace_filter_deps="gpl"
3388 kerndeint_filter_deps="gpl"
3389 ladspa_filter_deps="ladspa libdl"
3390 lensfun_filter_deps="liblensfun version3"
3391 lv2_filter_deps="lv2"
3392 mcdeint_filter_deps="avcodec gpl"
3393 movie_filter_deps="avcodec avformat"
3394 mpdecimate_filter_deps="gpl"
3395 mpdecimate_filter_select="pixelutils"
3396 mptestsrc_filter_deps="gpl"
3397 negate_filter_deps="lut_filter"
3398 nnedi_filter_deps="gpl"
3399 ocr_filter_deps="libtesseract"
3400 ocv_filter_deps="libopencv"
3401 openclsrc_filter_deps="opencl"
3402 overlay_opencl_filter_deps="opencl"
3403 overlay_qsv_filter_deps="libmfx"
3404 overlay_qsv_filter_select="qsvvpp"
3405 owdenoise_filter_deps="gpl"
3406 pan_filter_deps="swresample"
3407 perspective_filter_deps="gpl"
3408 phase_filter_deps="gpl"
3409 pp7_filter_deps="gpl"
3410 pp_filter_deps="gpl postproc"
3411 prewitt_opencl_filter_deps="opencl"
3412 procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3413 program_opencl_filter_deps="opencl"
3414 pullup_filter_deps="gpl"
3415 removelogo_filter_deps="avcodec avformat swscale"
3416 repeatfields_filter_deps="gpl"
3417 resample_filter_deps="avresample"
3418 roberts_opencl_filter_deps="opencl"
3419 rubberband_filter_deps="librubberband"
3420 sab_filter_deps="gpl swscale"
3421 scale2ref_filter_deps="swscale"
3422 scale_filter_deps="swscale"
3423 scale_qsv_filter_deps="libmfx"
3424 select_filter_select="pixelutils"
3425 sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3426 showcqt_filter_deps="avcodec avformat swscale"
3427 showcqt_filter_suggest="libfontconfig libfreetype"
3428 showcqt_filter_select="fft"
3429 showfreqs_filter_deps="avcodec"
3430 showfreqs_filter_select="fft"
3431 showspectrum_filter_deps="avcodec"
3432 showspectrum_filter_select="fft"
3433 showspectrumpic_filter_deps="avcodec"
3434 showspectrumpic_filter_select="fft"
3435 signature_filter_deps="gpl avcodec avformat"
3436 smartblur_filter_deps="gpl swscale"
3437 sobel_opencl_filter_deps="opencl"
3438 sofalizer_filter_deps="libmysofa avcodec"
3439 sofalizer_filter_select="fft"
3440 spectrumsynth_filter_deps="avcodec"
3441 spectrumsynth_filter_select="fft"
3442 spp_filter_deps="gpl avcodec"
3443 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3444 sr_filter_deps="avformat swscale"
3445 sr_filter_select="dnn"
3446 stereo3d_filter_deps="gpl"
3447 subtitles_filter_deps="avformat avcodec libass"
3448 super2xsai_filter_deps="gpl"
3449 pixfmts_super2xsai_test_deps="super2xsai_filter"
3450 tinterlace_filter_deps="gpl"
3451 tinterlace_merge_test_deps="tinterlace_filter"
3452 tinterlace_pad_test_deps="tinterlace_filter"
3453 tonemap_filter_deps="const_nan"
3454 tonemap_opencl_filter_deps="opencl const_nan"
3455 unsharp_opencl_filter_deps="opencl"
3456 uspp_filter_deps="gpl avcodec"
3457 vaguedenoiser_filter_deps="gpl"
3458 vidstabdetect_filter_deps="libvidstab"
3459 vidstabtransform_filter_deps="libvidstab"
3460 libvmaf_filter_deps="libvmaf pthreads"
3461 zmq_filter_deps="libzmq"
3462 zoompan_filter_deps="swscale"
3463 zscale_filter_deps="libzimg const_nan"
3464 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3465 vpp_qsv_filter_deps="libmfx"
3466 vpp_qsv_filter_select="qsvvpp"
3467
3468 # examples
3469 avio_dir_cmd_deps="avformat avutil"
3470 avio_reading_deps="avformat avcodec avutil"
3471 decode_audio_example_deps="avcodec avutil"
3472 decode_video_example_deps="avcodec avutil"
3473 demuxing_decoding_example_deps="avcodec avformat avutil"
3474 encode_audio_example_deps="avcodec avutil"
3475 encode_video_example_deps="avcodec avutil"
3476 extract_mvs_example_deps="avcodec avformat avutil"
3477 filter_audio_example_deps="avfilter avutil"
3478 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3479 filtering_video_example_deps="avfilter avcodec avformat avutil"
3480 http_multiclient_example_deps="avformat avutil fork"
3481 hw_decode_example_deps="avcodec avformat avutil"
3482 metadata_example_deps="avformat avutil"
3483 muxing_example_deps="avcodec avformat avutil swscale"
3484 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3485 remuxing_example_deps="avcodec avformat avutil"
3486 resampling_audio_example_deps="avutil swresample"
3487 scaling_video_example_deps="avutil swscale"
3488 transcode_aac_example_deps="avcodec avformat swresample"
3489 transcoding_example_deps="avfilter avcodec avformat avutil"
3490 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3491 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3492
3493 # EXTRALIBS_LIST
3494 cpu_init_extralibs="pthreads_extralibs"
3495 cws2fws_extralibs="zlib_extralibs"
3496
3497 # libraries, in any order
3498 avcodec_deps="avutil"
3499 avcodec_suggest="libm"
3500 avcodec_select="null_bsf"
3501 avdevice_deps="avformat avcodec avutil"
3502 avdevice_suggest="libm"
3503 avfilter_deps="avutil"
3504 avfilter_suggest="libm"
3505 avformat_deps="avcodec avutil"
3506 avformat_suggest="libm network zlib"
3507 avresample_deps="avutil"
3508 avresample_suggest="libm"
3509 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3510 postproc_deps="avutil gpl"
3511 postproc_suggest="libm"
3512 swresample_deps="avutil"
3513 swresample_suggest="libm libsoxr"
3514 swscale_deps="avutil"
3515 swscale_suggest="libm"
3516
3517 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3518 avfilter_extralibs="pthreads_extralibs"
3519 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3520
3521 # programs
3522 ffmpeg_deps="avcodec avfilter avformat"
3523 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3524                null_filter
3525                trim_filter"
3526 ffmpeg_suggest="ole32 psapi shell32"
3527 ffplay_deps="avcodec avformat swscale swresample sdl2"
3528 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3529 ffplay_suggest="shell32"
3530 ffprobe_deps="avcodec avformat"
3531 ffprobe_suggest="shell32"
3532
3533 # documentation
3534 podpages_deps="perl"
3535 manpages_deps="perl pod2man"
3536 htmlpages_deps="perl"
3537 htmlpages_deps_any="makeinfo_html texi2html"
3538 txtpages_deps="perl makeinfo"
3539 doc_deps_any="manpages htmlpages podpages txtpages"
3540
3541 # default parameters
3542
3543 logfile="ffbuild/config.log"
3544
3545 # installation paths
3546 prefix_default="/usr/local"
3547 bindir_default='${prefix}/bin'
3548 datadir_default='${prefix}/share/ffmpeg'
3549 docdir_default='${prefix}/share/doc/ffmpeg'
3550 incdir_default='${prefix}/include'
3551 libdir_default='${prefix}/lib'
3552 mandir_default='${prefix}/share/man'
3553
3554 # toolchain
3555 ar_default="ar"
3556 cc_default="gcc"
3557 cxx_default="g++"
3558 host_cc_default="gcc"
3559 doxygen_default="doxygen"
3560 install="install"
3561 ln_s_default="ln -s -f"
3562 nm_default="nm -g"
3563 pkg_config_default=pkg-config
3564 ranlib_default="ranlib"
3565 strip_default="strip"
3566 version_script='--version-script'
3567 objformat="elf32"
3568 x86asmexe_default="nasm"
3569 windres_default="windres"
3570 nvcc_default="nvcc"
3571 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3572 striptype="direct"
3573
3574 # OS
3575 target_os_default=$(tolower $(uname -s))
3576 host_os=$target_os_default
3577
3578 # machine
3579 if test "$target_os_default" = aix; then
3580     arch_default=$(uname -p)
3581     strip_default="strip -X32_64"
3582 else
3583     arch_default=$(uname -m)
3584 fi
3585 cpu="generic"
3586 intrinsics="none"
3587
3588 # configurable options
3589 enable $PROGRAM_LIST
3590 enable $DOCUMENT_LIST
3591 enable $EXAMPLE_LIST
3592 enable $(filter_out avresample $LIBRARY_LIST)
3593 enable stripping
3594
3595 enable asm
3596 enable debug
3597 enable doc
3598 enable faan faandct faanidct
3599 enable optimizations
3600 enable runtime_cpudetect
3601 enable safe_bitstream_reader
3602 enable static
3603 enable swscale_alpha
3604 enable valgrind_backtrace
3605
3606 sws_max_filter_size_default=256
3607 set_default sws_max_filter_size
3608
3609 # internal components are enabled by default
3610 enable $EXTRALIBS_LIST
3611
3612 # Avoid external, non-system, libraries getting enabled by dependency resolution
3613 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3614
3615 # build settings
3616 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3617 LIBPREF="lib"
3618 LIBSUF=".a"
3619 FULLNAME='$(NAME)$(BUILDSUF)'
3620 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3621 SLIBPREF="lib"
3622 SLIBSUF=".so"
3623 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3624 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3625 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3626 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3627 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3628 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3629 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3630
3631 asflags_filter=echo
3632 cflags_filter=echo
3633 ldflags_filter=echo
3634
3635 AS_C='-c'
3636 AS_O='-o $@'
3637 CC_C='-c'
3638 CC_E='-E -o $@'
3639 CC_O='-o $@'
3640 CXX_C='-c'
3641 CXX_O='-o $@'
3642 OBJCC_C='-c'
3643 OBJCC_E='-E -o $@'
3644 OBJCC_O='-o $@'
3645 X86ASM_O='-o $@'
3646 LD_O='-o $@'
3647 LD_LIB='-l%'
3648 LD_PATH='-L'
3649 HOSTCC_C='-c'
3650 HOSTCC_E='-E -o $@'
3651 HOSTCC_O='-o $@'
3652 HOSTLD_O='-o $@'
3653 NVCC_C='-c'
3654 NVCC_O='-o $@'
3655
3656 host_extralibs='-lm'
3657 host_cflags_filter=echo
3658 host_ldflags_filter=echo
3659
3660 target_path='$(CURDIR)'
3661
3662 # since the object filename is not given with the -MM flag, the compiler
3663 # is only able to print the basename, and we must add the path ourselves
3664 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3665 DEPFLAGS='-MM'
3666
3667 mkdir -p ffbuild
3668
3669 # find source path
3670 if test -f configure; then
3671     source_path=.
3672 else
3673     source_path=$(cd $(dirname "$0"); pwd)
3674     case "$source_path" in
3675         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3676     esac
3677     test -e "$source_path/config.h" &&
3678         die "Out of tree builds are impossible with config.h in source dir."
3679 fi
3680
3681 for v in "$@"; do
3682     r=${v#*=}
3683     l=${v%"$r"}
3684     r=$(sh_quote "$r")
3685     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3686 done
3687
3688 find_things_extern(){
3689     thing=$1
3690     pattern=$2
3691     file=$source_path/$3
3692     out=${4:-$thing}
3693     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3694 }
3695
3696 find_filters_extern(){
3697     file=$source_path/$1
3698     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file
3699     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file
3700 }
3701
3702 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3703 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3704 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3705 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3706 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3707 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3708 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3709 CODEC_LIST="
3710     $ENCODER_LIST
3711     $DECODER_LIST
3712 "
3713 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3714 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3715 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3716 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3717
3718 AVCODEC_COMPONENTS_LIST="
3719     $BSF_LIST
3720     $DECODER_LIST
3721     $ENCODER_LIST
3722     $HWACCEL_LIST
3723     $PARSER_LIST
3724 "
3725
3726 AVDEVICE_COMPONENTS_LIST="
3727     $INDEV_LIST
3728     $OUTDEV_LIST
3729 "
3730
3731 AVFILTER_COMPONENTS_LIST="
3732     $FILTER_LIST
3733 "
3734
3735 AVFORMAT_COMPONENTS_LIST="
3736     $DEMUXER_LIST
3737     $MUXER_LIST
3738     $PROTOCOL_LIST
3739 "
3740
3741 ALL_COMPONENTS="
3742     $AVCODEC_COMPONENTS_LIST
3743     $AVDEVICE_COMPONENTS_LIST
3744     $AVFILTER_COMPONENTS_LIST
3745     $AVFORMAT_COMPONENTS_LIST
3746 "
3747
3748 for n in $COMPONENT_LIST; do
3749     v=$(toupper ${n%s})_LIST
3750     eval enable \$$v
3751     eval ${n}_if_any="\$$v"
3752 done
3753
3754 enable $ARCH_EXT_LIST
3755
3756 die_unknown(){
3757     echo "Unknown option \"$1\"."
3758     echo "See $0 --help for available options."
3759     exit 1
3760 }
3761
3762 print_in_columns() {
3763     cols=$(expr $ncols / 24)
3764     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3765 }
3766
3767 show_list() {
3768     suffix=_$1
3769     shift
3770     echo $* | sed s/$suffix//g | print_in_columns
3771     exit 0
3772 }
3773
3774 rand_list(){
3775     IFS=', '
3776     set -- $*
3777     unset IFS
3778     for thing; do
3779         comp=${thing%:*}
3780         prob=${thing#$comp}
3781         prob=${prob#:}
3782         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3783         echo "prob ${prob:-0.5}"
3784         printf '%s\n' $comp
3785     done
3786 }
3787
3788 do_random(){
3789     action=$1
3790     shift
3791     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3792     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3793 }
3794
3795 for opt do
3796     optval="${opt#*=}"
3797     case "$opt" in
3798         --extra-ldflags=*)
3799             add_ldflags $optval
3800         ;;
3801         --extra-ldexeflags=*)
3802             add_ldexeflags $optval
3803         ;;
3804         --extra-ldsoflags=*)
3805             add_ldsoflags $optval
3806         ;;
3807         --extra-ldlibflags=*)
3808             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3809                  "removed in the future. Use --extra-ldsoflags instead."
3810             add_ldsoflags $optval
3811         ;;
3812         --extra-libs=*)
3813             add_extralibs $optval
3814         ;;
3815         --disable-devices)
3816             disable $INDEV_LIST $OUTDEV_LIST
3817         ;;
3818         --enable-debug=*)
3819             debuglevel="$optval"
3820         ;;
3821         --disable-programs)
3822             disable $PROGRAM_LIST
3823         ;;
3824         --disable-everything)
3825             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3826         ;;
3827         --disable-all)
3828             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3829             disable $LIBRARY_LIST $PROGRAM_LIST doc
3830             enable avutil
3831         ;;
3832         --enable-random|--disable-random)
3833             action=${opt%%-random}
3834             do_random ${action#--} $COMPONENT_LIST
3835         ;;
3836         --enable-random=*|--disable-random=*)
3837             action=${opt%%-random=*}
3838             do_random ${action#--} $optval
3839         ;;
3840         --enable-sdl)
3841             enable sdl2
3842         ;;
3843         --enable-*=*|--disable-*=*)
3844             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3845             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3846             eval list=\$$(toupper $thing)_LIST
3847             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3848             list=$(filter "$name" $list)
3849             [ "$list" = "" ] && warn "Option $opt did not match anything"
3850             $action $list
3851         ;;
3852         --enable-yasm|--disable-yasm)
3853             warn "The ${opt} option is only provided for compatibility and will be\n"\
3854                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3855             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3856         ;;
3857         --yasmexe=*)
3858             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3859                  "removed in the future. Use --x86asmexe instead."
3860             x86asmexe="$optval"
3861         ;;
3862         --enable-?*|--disable-?*)
3863             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3864             if is_in $option $COMPONENT_LIST; then
3865                 test $action = disable && action=unset
3866                 eval $action \$$(toupper ${option%s})_LIST
3867             elif is_in $option $CMDLINE_SELECT; then
3868                 $action $option
3869             else
3870                 die_unknown $opt
3871             fi
3872         ;;
3873         --list-*)
3874             NAME="${opt#--list-}"
3875             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3876             NAME=${NAME%s}
3877             eval show_list $NAME \$$(toupper $NAME)_LIST
3878         ;;
3879         --help|-h) show_help
3880         ;;
3881         --quiet|-q) quiet=yes
3882         ;;
3883         --fatal-warnings) enable fatal_warnings
3884         ;;
3885         --libfuzzer=*)
3886             libfuzzer_path="$optval"
3887         ;;
3888         *)
3889             optname="${opt%%=*}"
3890             optname="${optname#--}"
3891             optname=$(echo "$optname" | sed 's/-/_/g')
3892             if is_in $optname $CMDLINE_SET; then
3893                 eval $optname='$optval'
3894             elif is_in $optname $CMDLINE_APPEND; then
3895                 append $optname "$optval"
3896             else
3897                 die_unknown $opt
3898             fi
3899         ;;
3900     esac
3901 done
3902
3903 for e in $env; do
3904     eval "export $e"
3905 done
3906
3907 if disabled autodetect; then
3908
3909     # Unless iconv is explicitely disabled by the user, we still want to probe
3910     # for the iconv from the libc.
3911     disabled iconv || enable libc_iconv
3912
3913     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3914     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3915 fi
3916 # Mark specifically enabled, but normally autodetected libraries as requested.
3917 for lib in $AUTODETECT_LIBS; do
3918     enabled $lib && request $lib
3919 done
3920 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3921 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3922 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3923
3924 disabled logging && logfile=/dev/null
3925
3926 # command line configuration sanity checks
3927
3928 # we need to build at least one lib type
3929 if ! enabled_any static shared; then
3930     cat <<EOF
3931 At least one library type must be built.
3932 Specify --enable-static to build the static libraries or --enable-shared to
3933 build the shared libraries as well. To only build the shared libraries specify
3934 --disable-static in addition to --enable-shared.
3935 EOF
3936     exit 1
3937 fi
3938
3939 die_license_disabled() {
3940     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3941 }
3942
3943 die_license_disabled_gpl() {
3944     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3945 }
3946
3947 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3948 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3949
3950 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3951 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3952
3953 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3954
3955 if enabled nonfree; then
3956     license="nonfree and unredistributable"
3957 elif enabled gplv3; then
3958     license="GPL version 3 or later"
3959 elif enabled lgplv3; then
3960     license="LGPL version 3 or later"
3961 elif enabled gpl; then
3962     license="GPL version 2 or later"
3963 else
3964     license="LGPL version 2.1 or later"
3965 fi
3966
3967 enabled_all gnutls openssl &&
3968     die "GnuTLS and OpenSSL must not be enabled at the same time."
3969
3970 enabled_all gnutls mbedtls &&
3971     die "GnuTLS and mbedTLS must not be enabled at the same time."
3972
3973 enabled_all openssl mbedtls &&
3974     die "OpenSSL and mbedTLS must not be enabled at the same time."
3975
3976 # Disable all the library-specific components if the library itself
3977 # is disabled, see AVCODEC_LIST and following _LIST variables.
3978
3979 disable_components(){
3980     disabled ${1} && disable $(
3981         eval components="\$$(toupper ${1})_COMPONENTS"
3982         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3983     )
3984 }
3985
3986 map 'disable_components $v' $LIBRARY_LIST
3987
3988 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3989 set >> $logfile
3990
3991 test -n "$valgrind" && toolchain="valgrind-memcheck"
3992
3993 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
3994     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3995     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3996 }
3997
3998 case "$toolchain" in
3999     *-asan)
4000         cc_default="${toolchain%-asan}"
4001         add_cflags  -fsanitize=address
4002         add_ldflags -fsanitize=address
4003     ;;
4004     *-msan)
4005         cc_default="${toolchain%-msan}"
4006         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4007         add_ldflags -fsanitize=memory
4008     ;;
4009     *-tsan)
4010         cc_default="${toolchain%-tsan}"
4011         add_cflags  -fsanitize=thread
4012         add_ldflags -fsanitize=thread
4013         case "$toolchain" in
4014             gcc-tsan)
4015                 add_cflags  -fPIC
4016                 add_ldflags -fPIC
4017                 ;;
4018         esac
4019     ;;
4020     *-usan)
4021         cc_default="${toolchain%-usan}"
4022         add_cflags  -fsanitize=undefined
4023         add_ldflags -fsanitize=undefined
4024     ;;
4025     valgrind-*)
4026         target_exec_default="valgrind"
4027         case "$toolchain" in
4028             valgrind-massif)
4029                 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"
4030                 ;;
4031             valgrind-memcheck)
4032                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4033                 ;;
4034         esac
4035     ;;
4036     msvc)
4037         # Check whether the current MSVC version needs the C99 converter.
4038         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4039         # support enough of C99 to build ffmpeg. Default to the new
4040         # behaviour if the regexp was unable to match anything, since this
4041         # successfully parses the version number of existing supported
4042         # versions that require the converter (MSVC 2010 and 2012).
4043         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4044         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4045             cc_default="cl"
4046             cxx_default="cl"
4047         else
4048             die "Unsupported MSVC version (2013 or newer required)"
4049         fi
4050         ld_default="$source_path/compat/windows/mslink"
4051         nm_default="dumpbin -symbols"
4052         ar_default="lib"
4053         case "$arch" in
4054         aarch64|arm64)
4055             as_default="armasm64"
4056             ;;
4057         arm*)
4058             as_default="armasm"
4059             ;;
4060         esac
4061         target_os_default="win32"
4062         # Use a relative path for TMPDIR. This makes sure all the
4063         # ffconf temp files are written with a relative path, avoiding
4064         # issues with msys/win32 path conversion for MSVC parameters
4065         # such as -Fo<file> or -out:<file>.
4066         TMPDIR=.
4067     ;;
4068     icl)
4069         cc_default="icl"
4070         ld_default="xilink"
4071         nm_default="dumpbin -symbols"
4072         ar_default="xilib"
4073         target_os_default="win32"
4074         TMPDIR=.
4075     ;;
4076     gcov)
4077         add_cflags  -fprofile-arcs -ftest-coverage
4078         add_ldflags -fprofile-arcs -ftest-coverage
4079     ;;
4080     llvm-cov)
4081         add_cflags -fprofile-arcs -ftest-coverage
4082         add_ldflags --coverage
4083     ;;
4084     hardened)
4085         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4086         add_cflags   -fno-strict-overflow -fstack-protector-all
4087         add_ldflags  -Wl,-z,relro -Wl,-z,now
4088         add_cflags   -fPIE
4089         add_ldexeflags -fPIE -pie
4090     ;;
4091     ?*)
4092         die "Unknown toolchain $toolchain"
4093     ;;
4094 esac
4095
4096 if test -n "$cross_prefix"; then
4097     test -n "$arch" && test -n "$target_os" ||
4098         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4099     enable cross_compile
4100 fi
4101
4102 ar_default="${cross_prefix}${ar_default}"
4103 cc_default="${cross_prefix}${cc_default}"
4104 cxx_default="${cross_prefix}${cxx_default}"
4105 nm_default="${cross_prefix}${nm_default}"
4106 pkg_config_default="${cross_prefix}${pkg_config_default}"
4107 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4108     ranlib_default="${cross_prefix}${ranlib_default} -D"
4109 else
4110     ranlib_default="${cross_prefix}${ranlib_default}"
4111 fi
4112 strip_default="${cross_prefix}${strip_default}"
4113 windres_default="${cross_prefix}${windres_default}"
4114
4115 sysinclude_default="${sysroot}/usr/include"
4116
4117 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4118     target_exec target_os x86asmexe nvcc
4119 enabled cross_compile || host_cc_default=$cc
4120 set_default host_cc
4121
4122 pkg_config_fail_message=""
4123 if ! $pkg_config --version >/dev/null 2>&1; then
4124     warn "$pkg_config not found, library detection may fail."
4125     pkg_config=false
4126 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4127     pkg_config_fail_message="
4128 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4129 fi
4130
4131 if test $doxygen != $doxygen_default && \
4132   ! $doxygen --version >/dev/null 2>&1; then
4133     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4134 fi
4135
4136 exesuf() {
4137     case $1 in
4138         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4139     esac
4140 }
4141
4142 EXESUF=$(exesuf $target_os)
4143 HOSTEXESUF=$(exesuf $host_os)
4144
4145 # set temporary file name
4146 : ${TMPDIR:=$TEMPDIR}
4147 : ${TMPDIR:=$TMP}
4148 : ${TMPDIR:=/tmp}
4149
4150 if [ -n "$tempprefix" ] ; then
4151     mktemp(){
4152         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4153         echo "$tmpname"
4154         mkdir "$tmpname"
4155     }
4156 elif ! test_cmd mktemp -u XXXXXX; then
4157     # simple replacement for missing mktemp
4158     # NOT SAFE FOR GENERAL USE
4159     mktemp(){
4160         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4161         echo "$tmpname"
4162         mkdir "$tmpname"
4163     }
4164 fi
4165
4166 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4167     die "Unable to create temporary directory in $TMPDIR."
4168
4169 tmpfile(){
4170     tmp="${FFTMPDIR}/test"$2
4171     (set -C; exec > $tmp) 2> /dev/null ||
4172         die "Unable to create temporary file in $FFTMPDIR."
4173     eval $1=$tmp
4174 }
4175
4176 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4177 trap 'exit 2' INT
4178
4179 tmpfile TMPASM .asm
4180 tmpfile TMPC&n