Merge commit '23be4eebf8aaa7519b12b2a49e5c5c6c4d076e6a'
[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_asflags(){
903     append ASFLAGS $($asflags_filter "$@")
904 }
905
906 add_objcflags(){
907     append OBJCFLAGS $($objcflags_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 "$@")
920 }
921
922 add_stripflags(){
923     append ASMSTRIPFLAGS "$@"
924 }
925
926 add_extralibs(){
927     prepend extralibs $($ldflags_filter "$@")
928 }
929
930 add_host_cppflags(){
931     append host_cppflags "$@"
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_o(){
959     eval printf '%s\\n' $CC_O
960 }
961
962 cc_e(){
963     eval printf '%s\\n' $CC_E
964 }
965
966 test_cc(){
967     log test_cc "$@"
968     cat > $TMPC
969     log_file $TMPC
970     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
971 }
972
973 test_cxx(){
974     log test_cxx "$@"
975     cat > $TMPCPP
976     log_file $TMPCPP
977     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
978 }
979
980 test_objcc(){
981     log test_objcc "$@"
982     cat > $TMPM
983     log_file $TMPM
984     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
985 }
986
987 test_cpp(){
988     log test_cpp "$@"
989     cat > $TMPC
990     log_file $TMPC
991     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
992 }
993
994 as_o(){
995     eval printf '%s\\n' $AS_O
996 }
997
998 test_as(){
999     log test_as "$@"
1000     cat > $TMPS
1001     log_file $TMPS
1002     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1003 }
1004
1005 x86asm_o(){
1006     eval printf '%s\\n' $X86ASM_O
1007 }
1008
1009 test_x86asm(){
1010     log test_x86asm "$@"
1011     echo "$1" > $TMPASM
1012     log_file $TMPASM
1013     shift
1014     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1015 }
1016
1017 check_cmd(){
1018     log check_cmd "$@"
1019     cmd=$1
1020     disabled $cmd && return
1021     disable $cmd
1022     test_cmd $@ && enable $cmd
1023 }
1024
1025 check_as(){
1026     log check_as "$@"
1027     name=$1
1028     code=$2
1029     shift 2
1030     disable $name
1031     test_as $@ <<EOF && enable $name
1032 $code
1033 EOF
1034 }
1035
1036 check_inline_asm(){
1037     log check_inline_asm "$@"
1038     name="$1"
1039     code="$2"
1040     shift 2
1041     disable $name
1042     test_cc "$@" <<EOF && enable $name
1043 void foo(void){ __asm__ volatile($code); }
1044 EOF
1045 }
1046
1047 check_inline_asm_flags(){
1048     log check_inline_asm_flags "$@"
1049     name="$1"
1050     code="$2"
1051     flags=''
1052     shift 2
1053     while [ "$1" != "" ]; do
1054       append flags $1
1055       shift
1056     done;
1057     disable $name
1058     cat > $TMPC <<EOF
1059 void foo(void){ __asm__ volatile($code); }
1060 EOF
1061     log_file $TMPC
1062     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1063     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1064 }
1065
1066 check_insn(){
1067     log check_insn "$@"
1068     check_inline_asm ${1}_inline "\"$2\""
1069     check_as ${1}_external "$2"
1070 }
1071
1072 check_x86asm(){
1073     log check_x86asm "$@"
1074     name=$1
1075     shift
1076     disable $name
1077     test_x86asm "$@" && enable $name
1078 }
1079
1080 ld_o(){
1081     eval printf '%s\\n' $LD_O
1082 }
1083
1084 test_ld(){
1085     log test_ld "$@"
1086     type=$1
1087     shift 1
1088     flags=$(filter_out '-l*|*.so' $@)
1089     libs=$(filter '-l*|*.so' $@)
1090     test_$type $($cflags_filter $flags) || return
1091     flags=$($ldflags_filter $flags)
1092     libs=$($ldflags_filter $libs)
1093     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1094 }
1095
1096 check_ld(){
1097     log check_ld "$@"
1098     type=$1
1099     name=$2
1100     shift 2
1101     disable $name
1102     test_ld $type $@ && enable $name
1103 }
1104
1105 print_include(){
1106     hdr=$1
1107     test "${hdr%.h}" = "${hdr}" &&
1108         echo "#include $hdr"    ||
1109         echo "#include <$hdr>"
1110 }
1111
1112 test_code(){
1113     log test_code "$@"
1114     check=$1
1115     headers=$2
1116     code=$3
1117     shift 3
1118     {
1119         for hdr in $headers; do
1120             print_include $hdr
1121         done
1122         echo "int main(void) { $code; return 0; }"
1123     } | test_$check "$@"
1124 }
1125
1126 check_cppflags(){
1127     log check_cppflags "$@"
1128     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1129 #include <stdlib.h>
1130 EOF
1131 }
1132
1133 test_cflags(){
1134     log test_cflags "$@"
1135     set -- $($cflags_filter "$@")
1136     test_cc "$@" <<EOF
1137 int x;
1138 EOF
1139 }
1140
1141 check_cflags(){
1142     log check_cflags "$@"
1143     test_cflags "$@" && add_cflags "$@"
1144 }
1145
1146 check_cxxflags(){
1147     log check_cxxflags "$@"
1148     set -- $($cflags_filter "$@")
1149     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1150 int x;
1151 EOF
1152 }
1153
1154 test_objcflags(){
1155     log test_objcflags "$@"
1156     set -- $($objcflags_filter "$@")
1157     test_objcc "$@" <<EOF
1158 int x;
1159 EOF
1160 }
1161
1162 check_objcflags(){
1163     log check_objcflags "$@"
1164     test_objcflags "$@" && add_objcflags "$@"
1165 }
1166
1167 test_ldflags(){
1168     log test_ldflags "$@"
1169     set -- $($ldflags_filter "$@")
1170     test_ld "cc" "$@" <<EOF
1171 int main(void){ return 0; }
1172 EOF
1173 }
1174
1175 check_ldflags(){
1176     log check_ldflags "$@"
1177     test_ldflags "$@" && add_ldflags "$@"
1178 }
1179
1180 test_stripflags(){
1181     log test_stripflags "$@"
1182     # call test_cc to get a fresh TMPO
1183     test_cc <<EOF
1184 int main(void) { return 0; }
1185 EOF
1186     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1187 }
1188
1189 check_stripflags(){
1190     log check_stripflags "$@"
1191     test_stripflags "$@" && add_stripflags "$@"
1192 }
1193
1194 check_header(){
1195     log check_header "$@"
1196     headers=$1
1197     shift
1198     disable_sanitized $headers
1199     {
1200         for hdr in $headers; do
1201             print_include $hdr
1202         done
1203         echo "int x;"
1204     } | test_cpp "$@" && enable_sanitized $headers
1205 }
1206
1207 check_header_objcc(){
1208     log check_header_objcc "$@"
1209     rm -f -- "$TMPO"
1210     header=$1
1211     shift
1212     disable_sanitized $header
1213     {
1214        echo "#include <$header>"
1215        echo "int main(void) { return 0; }"
1216     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1217 }
1218
1219 check_apple_framework(){
1220     log check_apple_framework "$@"
1221     framework="$1"
1222     name="$(tolower $framework)"
1223     header="${framework}/${framework}.h"
1224     disable $name
1225     check_header_objcc $header &&
1226         enable $name && eval ${name}_extralibs='"-framework $framework"'
1227 }
1228
1229 check_func(){
1230     log check_func "$@"
1231     func=$1
1232     shift
1233     disable $func
1234     test_ld "cc" "$@" <<EOF && enable $func
1235 extern int $func();
1236 int main(void){ $func(); }
1237 EOF
1238 }
1239
1240 check_complexfunc(){
1241     log check_complexfunc "$@"
1242     func=$1
1243     narg=$2
1244     shift 2
1245     test $narg = 2 && args="f, g" || args="f * I"
1246     disable $func
1247     test_ld "cc" "$@" <<EOF && enable $func
1248 #include <complex.h>
1249 #include <math.h>
1250 float foo(complex float f, complex float g) { return $func($args); }
1251 int main(void){ return (int) foo; }
1252 EOF
1253 }
1254
1255 check_mathfunc(){
1256     log check_mathfunc "$@"
1257     func=$1
1258     narg=$2
1259     shift 2
1260     test $narg = 2 && args="f, g" || args="f"
1261     disable $func
1262     test_ld "cc" "$@" <<EOF && enable $func
1263 #include <math.h>
1264 float foo(float f, float g) { return $func($args); }
1265 int main(void){ return (int) foo; }
1266 EOF
1267 }
1268
1269 check_func_headers(){
1270     log check_func_headers "$@"
1271     headers=$1
1272     funcs=$2
1273     shift 2
1274     {
1275         for hdr in $headers; do
1276             print_include $hdr
1277         done
1278         echo "#include <stdint.h>"
1279         for func in $funcs; do
1280             echo "long check_$func(void) { return (long) $func; }"
1281         done
1282         echo "int main(void) { int ret = 0;"
1283         # LTO could optimize out the test functions without this
1284         for func in $funcs; do
1285             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1286         done
1287         echo "return ret; }"
1288     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1289 }
1290
1291 check_class_headers_cpp(){
1292     log check_class_headers_cpp "$@"
1293     headers=$1
1294     classes=$2
1295     shift 2
1296     {
1297         for hdr in $headers; do
1298             echo "#include <$hdr>"
1299         done
1300         echo "int main(void) { "
1301         i=1
1302         for class in $classes; do
1303             echo "$class obj$i;"
1304             i=$(expr $i + 1)
1305         done
1306         echo "return 0; }"
1307     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1308 }
1309
1310 test_cpp_condition(){
1311     log test_cpp_condition "$@"
1312     header=$1
1313     condition=$2
1314     shift 2
1315     test_cpp "$@" <<EOF
1316 #include <$header>
1317 #if !($condition)
1318 #error "unsatisfied condition: $condition"
1319 #endif
1320 EOF
1321 }
1322
1323 check_cpp_condition(){
1324     log check_cpp_condition "$@"
1325     name=$1
1326     shift 1
1327     disable $name
1328     test_cpp_condition "$@" && enable $name
1329 }
1330
1331 test_cflags_cc(){
1332     log test_cflags_cc "$@"
1333     flags=$1
1334     header=$2
1335     condition=$3
1336     shift 3
1337     set -- $($cflags_filter "$flags")
1338     test_cc "$@" <<EOF
1339 #include <$header>
1340 #if !($condition)
1341 #error "unsatisfied condition: $condition"
1342 #endif
1343 EOF
1344 }
1345
1346 check_lib(){
1347     log check_lib "$@"
1348     name="$1"
1349     headers="$2"
1350     funcs="$3"
1351     shift 3
1352     disable $name
1353     check_func_headers "$headers" "$funcs" "$@" &&
1354         enable $name && eval ${name}_extralibs="\$@"
1355 }
1356
1357 check_lib_cpp(){
1358     log check_lib_cpp "$@"
1359     name="$1"
1360     headers="$2"
1361     classes="$3"
1362     shift 3
1363     disable $name
1364     check_class_headers_cpp "$headers" "$classes" "$@" &&
1365         enable $name && eval ${name}_extralibs="\$@"
1366 }
1367
1368 test_pkg_config(){
1369     log test_pkg_config "$@"
1370     name="$1"
1371     pkg_version="$2"
1372     pkg="${2%% *}"
1373     headers="$3"
1374     funcs="$4"
1375     shift 4
1376     disable $name
1377     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1378     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1379     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1380     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1381         enable $name &&
1382         set_sanitized "${name}_cflags"    $pkg_cflags &&
1383         set_sanitized "${name}_extralibs" $pkg_libs
1384 }
1385
1386 check_pkg_config(){
1387     log check_pkg_config "$@"
1388     name="$1"
1389     test_pkg_config "$@" &&
1390         eval add_cflags \$${name}_cflags
1391 }
1392
1393 test_exec(){
1394     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1395 }
1396
1397 check_exec_crash(){
1398     log check_exec_crash "$@"
1399     code=$(cat)
1400
1401     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1402     # are safe but may not be available everywhere.  Thus we use
1403     # raise(SIGTERM) instead.  The check is run in a subshell so we
1404     # can redirect the "Terminated" message from the shell.  SIGBUS
1405     # is not defined by standard C so it is used conditionally.
1406
1407     (test_exec "$@") >> $logfile 2>&1 <<EOF
1408 #include <signal.h>
1409 static void sighandler(int sig){
1410     raise(SIGTERM);
1411 }
1412 int foo(void){
1413     $code
1414 }
1415 int (*func_ptr)(void) = foo;
1416 int main(void){
1417     signal(SIGILL, sighandler);
1418     signal(SIGFPE, sighandler);
1419     signal(SIGSEGV, sighandler);
1420 #ifdef SIGBUS
1421     signal(SIGBUS, sighandler);
1422 #endif
1423     return func_ptr();
1424 }
1425 EOF
1426 }
1427
1428 check_type(){
1429     log check_type "$@"
1430     headers=$1
1431     type=$2
1432     shift 2
1433     disable_sanitized "$type"
1434     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1435 }
1436
1437 check_struct(){
1438     log check_struct "$@"
1439     headers=$1
1440     struct=$2
1441     member=$3
1442     shift 3
1443     disable_sanitized "${struct}_${member}"
1444     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1445         enable_sanitized "${struct}_${member}"
1446 }
1447
1448 check_builtin(){
1449     log check_builtin "$@"
1450     name=$1
1451     headers=$2
1452     builtin=$3
1453     shift 3
1454     disable "$name"
1455     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1456 }
1457
1458 check_compile_assert(){
1459     log check_compile_assert "$@"
1460     name=$1
1461     headers=$2
1462     condition=$3
1463     shift 3
1464     disable "$name"
1465     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1466 }
1467
1468 check_cc(){
1469     log check_cc "$@"
1470     name=$1
1471     shift
1472     disable "$name"
1473     test_code cc "$@" && enable "$name"
1474 }
1475
1476 require(){
1477     log require "$@"
1478     name_version="$1"
1479     name="${1%% *}"
1480     shift
1481     check_lib $name "$@" || die "ERROR: $name_version not found"
1482 }
1483
1484 require_cc(){
1485     log require_cc "$@"
1486     name="$1"
1487     shift
1488     test_code cc "$@" || die "ERROR: $name failed"
1489 }
1490
1491 require_cpp(){
1492     name="$1"
1493     headers="$2"
1494     classes="$3"
1495     shift 3
1496     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1497 }
1498
1499 require_header(){
1500     log require_header "$@"
1501     headers="$1"
1502     check_header "$@" || die "ERROR: $headers not found"
1503 }
1504
1505 require_cpp_condition(){
1506     log require_cpp_condition "$@"
1507     condition="$2"
1508     test_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1509 }
1510
1511 require_pkg_config(){
1512     log require_pkg_config "$@"
1513     pkg_version="$2"
1514     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1515 }
1516
1517 hostcc_e(){
1518     eval printf '%s\\n' $HOSTCC_E
1519 }
1520
1521 hostcc_o(){
1522     eval printf '%s\\n' $HOSTCC_O
1523 }
1524
1525 test_host_cc(){
1526     log test_host_cc "$@"
1527     cat > $TMPC
1528     log_file $TMPC
1529     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1530 }
1531
1532 test_host_cpp(){
1533     log test_host_cpp "$@"
1534     cat > $TMPC
1535     log_file $TMPC
1536     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1537 }
1538
1539 check_host_cppflags(){
1540     log check_host_cppflags "$@"
1541     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1542 #include <stdlib.h>
1543 EOF
1544 }
1545
1546 check_host_cflags(){
1547     log check_host_cflags "$@"
1548     set -- $($host_cflags_filter "$@")
1549     test_host_cc "$@" <<EOF && append host_cflags "$@"
1550 int x;
1551 EOF
1552 }
1553
1554 test_host_cpp_condition(){
1555     log test_host_cpp_condition "$@"
1556     header=$1
1557     condition=$2
1558     shift 2
1559     test_host_cpp "$@" <<EOF
1560 #include <$header>
1561 #if !($condition)
1562 #error "unsatisfied condition: $condition"
1563 #endif
1564 EOF
1565 }
1566
1567 check_host_cpp_condition(){
1568     log check_host_cpp_condition "$@"
1569     name=$1
1570     shift 1
1571     disable $name
1572     test_host_cpp_condition "$@" && enable $name
1573 }
1574
1575 cp_if_changed(){
1576     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1577     mkdir -p "$(dirname $2)"
1578     cp -f "$1" "$2"
1579 }
1580
1581 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1582 # system-dependent things.
1583
1584 AVCODEC_COMPONENTS="
1585     bsfs
1586     decoders
1587     encoders
1588     hwaccels
1589     parsers
1590 "
1591
1592 AVDEVICE_COMPONENTS="
1593     indevs
1594     outdevs
1595 "
1596
1597 AVFILTER_COMPONENTS="
1598     filters
1599 "
1600
1601 AVFORMAT_COMPONENTS="
1602     demuxers
1603     muxers
1604     protocols
1605 "
1606
1607 COMPONENT_LIST="
1608     $AVCODEC_COMPONENTS
1609     $AVDEVICE_COMPONENTS
1610     $AVFILTER_COMPONENTS
1611     $AVFORMAT_COMPONENTS
1612 "
1613
1614 EXAMPLE_LIST="
1615     avio_dir_cmd_example
1616     avio_reading_example
1617     decode_audio_example
1618     decode_video_example
1619     demuxing_decoding_example
1620     encode_audio_example
1621     encode_video_example
1622     extract_mvs_example
1623     filter_audio_example
1624     filtering_audio_example
1625     filtering_video_example
1626     http_multiclient_example
1627     hw_decode_example
1628     metadata_example
1629     muxing_example
1630     qsvdec_example
1631     remuxing_example
1632     resampling_audio_example
1633     scaling_video_example
1634     transcode_aac_example
1635     transcoding_example
1636     vaapi_encode_example
1637     vaapi_transcode_example
1638 "
1639
1640 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1641     alsa
1642     appkit
1643     avfoundation
1644     bzlib
1645     coreimage
1646     iconv
1647     libxcb
1648     libxcb_shm
1649     libxcb_shape
1650     libxcb_xfixes
1651     lzma
1652     schannel
1653     sdl2
1654     securetransport
1655     sndio
1656     xlib
1657     zlib
1658 "
1659
1660 EXTERNAL_LIBRARY_GPL_LIST="
1661     avisynth
1662     frei0r
1663     libcdio
1664     libdavs2
1665     librubberband
1666     libvidstab
1667     libx264
1668     libx265
1669     libxavs
1670     libxvid
1671 "
1672
1673 EXTERNAL_LIBRARY_NONFREE_LIST="
1674     decklink
1675     libndi_newtek
1676     libfdk_aac
1677     openssl
1678     libtls
1679 "
1680
1681 EXTERNAL_LIBRARY_VERSION3_LIST="
1682     gmp
1683     liblensfun
1684     libopencore_amrnb
1685     libopencore_amrwb
1686     libvmaf
1687     libvo_amrwbenc
1688     mbedtls
1689     rkmpp
1690 "
1691
1692 EXTERNAL_LIBRARY_GPLV3_LIST="
1693     libsmbclient
1694 "
1695
1696 EXTERNAL_LIBRARY_LIST="
1697     $EXTERNAL_LIBRARY_GPL_LIST
1698     $EXTERNAL_LIBRARY_NONFREE_LIST
1699     $EXTERNAL_LIBRARY_VERSION3_LIST
1700     $EXTERNAL_LIBRARY_GPLV3_LIST
1701     chromaprint
1702     gcrypt
1703     gnutls
1704     jni
1705     ladspa
1706     libaom
1707     libass
1708     libbluray
1709     libbs2b
1710     libcaca
1711     libcelt
1712     libcodec2
1713     libdc1394
1714     libdrm
1715     libflite
1716     libfontconfig
1717     libfreetype
1718     libfribidi
1719     libgme
1720     libgsm
1721     libiec61883
1722     libilbc
1723     libjack
1724     libkvazaar
1725     libmodplug
1726     libmp3lame
1727     libmysofa
1728     libopencv
1729     libopenh264
1730     libopenjpeg
1731     libopenmpt
1732     libopus
1733     libpulse
1734     librsvg
1735     librtmp
1736     libshine
1737     libsmbclient
1738     libsnappy
1739     libsoxr
1740     libspeex
1741     libsrt
1742     libssh
1743     libtensorflow
1744     libtesseract
1745     libtheora
1746     libtwolame
1747     libv4l2
1748     libvorbis
1749     libvpx
1750     libwavpack
1751     libwebp
1752     libxml2
1753     libzimg
1754     libzmq
1755     libzvbi
1756     lv2
1757     mediacodec
1758     openal
1759     opengl
1760     vapoursynth
1761 "
1762
1763 HWACCEL_AUTODETECT_LIBRARY_LIST="
1764     amf
1765     audiotoolbox
1766     crystalhd
1767     cuda
1768     cuvid
1769     d3d11va
1770     dxva2
1771     ffnvcodec
1772     nvdec
1773     nvenc
1774     vaapi
1775     vdpau
1776     videotoolbox
1777     v4l2_m2m
1778     xvmc
1779 "
1780
1781 # catchall list of things that require external libs to link
1782 EXTRALIBS_LIST="
1783     cpu_init
1784     cws2fws
1785 "
1786
1787 HWACCEL_LIBRARY_NONFREE_LIST="
1788     cuda_sdk
1789     libnpp
1790 "
1791
1792 HWACCEL_LIBRARY_LIST="
1793     $HWACCEL_LIBRARY_NONFREE_LIST
1794     libmfx
1795     mmal
1796     omx
1797     opencl
1798 "
1799
1800 DOCUMENT_LIST="
1801     doc
1802     htmlpages
1803     manpages
1804     podpages
1805     txtpages
1806 "
1807
1808 FEATURE_LIST="
1809     ftrapv
1810     gray
1811     hardcoded_tables
1812     omx_rpi
1813     runtime_cpudetect
1814     safe_bitstream_reader
1815     shared
1816     small
1817     static
1818     swscale_alpha
1819 "
1820
1821 # this list should be kept in linking order
1822 LIBRARY_LIST="
1823     avdevice
1824     avfilter
1825     swscale
1826     postproc
1827     avformat
1828     avcodec
1829     swresample
1830     avresample
1831     avutil
1832 "
1833
1834 LICENSE_LIST="
1835     gpl
1836     nonfree
1837     version3
1838 "
1839
1840 PROGRAM_LIST="
1841     ffplay
1842     ffprobe
1843     ffmpeg
1844 "
1845
1846 SUBSYSTEM_LIST="
1847     dct
1848     dwt
1849     error_resilience
1850     faan
1851     fast_unaligned
1852     fft
1853     lsp
1854     lzo
1855     mdct
1856     pixelutils
1857     network
1858     rdft
1859 "
1860
1861 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1862 CONFIG_LIST="
1863     $DOCUMENT_LIST
1864     $EXAMPLE_LIST
1865     $EXTERNAL_LIBRARY_LIST
1866     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1867     $HWACCEL_LIBRARY_LIST
1868     $HWACCEL_AUTODETECT_LIBRARY_LIST
1869     $FEATURE_LIST
1870     $LICENSE_LIST
1871     $LIBRARY_LIST
1872     $PROGRAM_LIST
1873     $SUBSYSTEM_LIST
1874     autodetect
1875     fontconfig
1876     linux_perf
1877     memory_poisoning
1878     neon_clobber_test
1879     ossfuzz
1880     pic
1881     thumb
1882     valgrind_backtrace
1883     xmm_clobber_test
1884     $COMPONENT_LIST
1885 "
1886
1887 THREADS_LIST="
1888     pthreads
1889     os2threads
1890     w32threads
1891 "
1892
1893 ATOMICS_LIST="
1894     atomics_gcc
1895     atomics_suncc
1896     atomics_win32
1897 "
1898
1899 AUTODETECT_LIBS="
1900     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1901     $HWACCEL_AUTODETECT_LIBRARY_LIST
1902     $THREADS_LIST
1903 "
1904
1905 ARCH_LIST="
1906     aarch64
1907     alpha
1908     arm
1909     avr32
1910     avr32_ap
1911     avr32_uc
1912     bfin
1913     ia64
1914     m68k
1915     mips
1916     mips64
1917     parisc
1918     ppc
1919     ppc64
1920     s390
1921     sh4
1922     sparc
1923     sparc64
1924     tilegx
1925     tilepro
1926     tomi
1927     x86
1928     x86_32
1929     x86_64
1930 "
1931
1932 ARCH_EXT_LIST_ARM="
1933     armv5te
1934     armv6
1935     armv6t2
1936     armv8
1937     neon
1938     vfp
1939     vfpv3
1940     setend
1941 "
1942
1943 ARCH_EXT_LIST_MIPS="
1944     mipsfpu
1945     mips32r2
1946     mips32r5
1947     mips64r2
1948     mips32r6
1949     mips64r6
1950     mipsdsp
1951     mipsdspr2
1952     msa
1953 "
1954
1955 ARCH_EXT_LIST_LOONGSON="
1956     loongson2
1957     loongson3
1958     mmi
1959 "
1960
1961 ARCH_EXT_LIST_X86_SIMD="
1962     aesni
1963     amd3dnow
1964     amd3dnowext
1965     avx
1966     avx2
1967     avx512
1968     fma3
1969     fma4
1970     mmx
1971     mmxext
1972     sse
1973     sse2
1974     sse3
1975     sse4
1976     sse42
1977     ssse3
1978     xop
1979 "
1980
1981 ARCH_EXT_LIST_PPC="
1982     altivec
1983     dcbzl
1984     ldbrx
1985     power8
1986     ppc4xx
1987     vsx
1988 "
1989
1990 ARCH_EXT_LIST_X86="
1991     $ARCH_EXT_LIST_X86_SIMD
1992     cpunop
1993     i686
1994 "
1995
1996 ARCH_EXT_LIST="
1997     $ARCH_EXT_LIST_ARM
1998     $ARCH_EXT_LIST_PPC
1999     $ARCH_EXT_LIST_X86
2000     $ARCH_EXT_LIST_MIPS
2001     $ARCH_EXT_LIST_LOONGSON
2002 "
2003
2004 ARCH_FEATURES="
2005     aligned_stack
2006     fast_64bit
2007     fast_clz
2008     fast_cmov
2009     local_aligned
2010     simd_align_16
2011     simd_align_32
2012     simd_align_64
2013 "
2014
2015 BUILTIN_LIST="
2016     atomic_cas_ptr
2017     machine_rw_barrier
2018     MemoryBarrier
2019     mm_empty
2020     rdtsc
2021     sem_timedwait
2022     sync_val_compare_and_swap
2023 "
2024 HAVE_LIST_CMDLINE="
2025     inline_asm
2026     symver
2027     x86asm
2028 "
2029
2030 HAVE_LIST_PUB="
2031     bigendian
2032     fast_unaligned
2033 "
2034
2035 HEADERS_LIST="
2036     arpa_inet_h
2037     asm_types_h
2038     cdio_paranoia_h
2039     cdio_paranoia_paranoia_h
2040     cuda_h
2041     dispatch_dispatch_h
2042     dev_bktr_ioctl_bt848_h
2043     dev_bktr_ioctl_meteor_h
2044     dev_ic_bt8xx_h
2045     dev_video_bktr_ioctl_bt848_h
2046     dev_video_meteor_ioctl_meteor_h
2047     direct_h
2048     dirent_h
2049     dxgidebug_h
2050     dxva_h
2051     ES2_gl_h
2052     gsm_h
2053     io_h
2054     linux_perf_event_h
2055     machine_ioctl_bt848_h
2056     machine_ioctl_meteor_h
2057     malloc_h
2058     opencv2_core_core_c_h
2059     OpenGL_gl3_h
2060     poll_h
2061     sys_param_h
2062     sys_resource_h
2063     sys_select_h
2064     sys_soundcard_h
2065     sys_time_h
2066     sys_un_h
2067     sys_videoio_h
2068     termios_h
2069     udplite_h
2070     unistd_h
2071     valgrind_valgrind_h
2072     windows_h
2073     winsock2_h
2074 "
2075
2076 INTRINSICS_LIST="
2077     intrinsics_neon
2078 "
2079
2080 COMPLEX_FUNCS="
2081     cabs
2082     cexp
2083 "
2084
2085 MATH_FUNCS="
2086     atanf
2087     atan2f
2088     cbrt
2089     cbrtf
2090     copysign
2091     cosf
2092     erf
2093     exp2
2094     exp2f
2095     expf
2096     hypot
2097     isfinite
2098     isinf
2099     isnan
2100     ldexpf
2101     llrint
2102     llrintf
2103     log2
2104     log2f
2105     log10f
2106     lrint
2107     lrintf
2108     powf
2109     rint
2110     round
2111     roundf
2112     sinf
2113     trunc
2114     truncf
2115 "
2116
2117 SYSTEM_FEATURES="
2118     dos_paths
2119     libc_msvcrt
2120     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2121     section_data_rel_ro
2122     threads
2123     uwp
2124     winrt
2125 "
2126
2127 SYSTEM_FUNCS="
2128     access
2129     aligned_malloc
2130     arc4random
2131     clock_gettime
2132     closesocket
2133     CommandLineToArgvW
2134     fcntl
2135     getaddrinfo
2136     gethrtime
2137     getopt
2138     GetProcessAffinityMask
2139     GetProcessMemoryInfo
2140     GetProcessTimes
2141     getrusage
2142     GetSystemTimeAsFileTime
2143     gettimeofday
2144     glob
2145     glXGetProcAddress
2146     gmtime_r
2147     inet_aton
2148     isatty
2149     kbhit
2150     localtime_r
2151     lstat
2152     lzo1x_999_compress
2153     mach_absolute_time
2154     MapViewOfFile
2155     memalign
2156     mkstemp
2157     mmap
2158     mprotect
2159     nanosleep
2160     PeekNamedPipe
2161     posix_memalign
2162     pthread_cancel
2163     sched_getaffinity
2164     SecItemImport
2165     SetConsoleTextAttribute
2166     SetConsoleCtrlHandler
2167     setmode
2168     setrlimit
2169     Sleep
2170     strerror_r
2171     sysconf
2172     sysctl
2173     usleep
2174     UTGetOSTypeFromString
2175     VirtualAlloc
2176     wglGetProcAddress
2177 "
2178
2179 SYSTEM_LIBRARIES="
2180     bcrypt
2181     vaapi_drm
2182     vaapi_x11
2183     vdpau_x11
2184 "
2185
2186 TOOLCHAIN_FEATURES="
2187     as_arch_directive
2188     as_dn_directive
2189     as_fpu_directive
2190     as_func
2191     as_object_arch
2192     asm_mod_q
2193     blocks_extension
2194     ebp_available
2195     ebx_available
2196     gnu_as
2197     gnu_windres
2198     ibm_asm
2199     inline_asm_direct_symbol_refs
2200     inline_asm_labels
2201     inline_asm_nonlocal_labels
2202     pragma_deprecated
2203     rsync_contimeout
2204     symver_asm_label
2205     symver_gnu_asm
2206     vfp_args
2207     xform_asm
2208     xmm_clobbers
2209 "
2210
2211 TYPES_LIST="
2212     kCMVideoCodecType_HEVC
2213     socklen_t
2214     struct_addrinfo
2215     struct_group_source_req
2216     struct_ip_mreq_source
2217     struct_ipv6_mreq
2218     struct_msghdr_msg_flags
2219     struct_pollfd
2220     struct_rusage_ru_maxrss
2221     struct_sctp_event_subscribe
2222     struct_sockaddr_in6
2223     struct_sockaddr_sa_len
2224     struct_sockaddr_storage
2225     struct_stat_st_mtim_tv_nsec
2226     struct_v4l2_frmivalenum_discrete
2227 "
2228
2229 HAVE_LIST="
2230     $ARCH_EXT_LIST
2231     $(add_suffix _external $ARCH_EXT_LIST)
2232     $(add_suffix _inline   $ARCH_EXT_LIST)
2233     $ARCH_FEATURES
2234     $BUILTIN_LIST
2235     $COMPLEX_FUNCS
2236     $HAVE_LIST_CMDLINE
2237     $HAVE_LIST_PUB
2238     $HEADERS_LIST
2239     $INTRINSICS_LIST
2240     $MATH_FUNCS
2241     $SYSTEM_FEATURES
2242     $SYSTEM_FUNCS
2243     $SYSTEM_LIBRARIES
2244     $THREADS_LIST
2245     $TOOLCHAIN_FEATURES
2246     $TYPES_LIST
2247     makeinfo
2248     makeinfo_html
2249     opencl_d3d11
2250     opencl_drm_arm
2251     opencl_drm_beignet
2252     opencl_dxva2
2253     opencl_vaapi_beignet
2254     opencl_vaapi_intel_media
2255     perl
2256     pod2man
2257     texi2html
2258 "
2259
2260 # options emitted with CONFIG_ prefix but not available on the command line
2261 CONFIG_EXTRA="
2262     aandcttables
2263     ac3dsp
2264     adts_header
2265     audio_frame_queue
2266     audiodsp
2267     blockdsp
2268     bswapdsp
2269     cabac
2270     cbs
2271     cbs_h264
2272     cbs_h265
2273     cbs_mpeg2
2274     cbs_vp9
2275     dirac_parse
2276     dnn
2277     dvprofile
2278     exif
2279     faandct
2280     faanidct
2281     fdctdsp
2282     flacdsp
2283     fmtconvert
2284     frame_thread_encoder
2285     g722dsp
2286     golomb
2287     gplv3
2288     h263dsp
2289     h264chroma
2290     h264dsp
2291     h264parse
2292     h264pred
2293     h264qpel
2294     hevcparse
2295     hpeldsp
2296     huffman
2297     huffyuvdsp
2298     huffyuvencdsp
2299     idctdsp
2300     iirfilter
2301     mdct15
2302     intrax8
2303     iso_media
2304     ividsp
2305     jpegtables
2306     lgplv3
2307     libx262
2308     llauddsp
2309     llviddsp
2310     llvidencdsp
2311     lpc
2312     lzf
2313     me_cmp
2314     mpeg_er
2315     mpegaudio
2316     mpegaudiodsp
2317     mpegaudioheader
2318     mpegvideo
2319     mpegvideoenc
2320     mss34dsp
2321     pixblockdsp
2322     qpeldsp
2323     qsv
2324     qsvdec
2325     qsvenc
2326     qsvvpp
2327     rangecoder
2328     riffdec
2329     riffenc
2330     rtpdec
2331     rtpenc_chain
2332     rv34dsp
2333     sinewin
2334     snappy
2335     srtp
2336     startcode
2337     texturedsp
2338     texturedspenc
2339     tpeldsp
2340     vaapi_1
2341     vaapi_encode
2342     vc1dsp
2343     videodsp
2344     vp3dsp
2345     vp56dsp
2346     vp8dsp
2347     wma_freqs
2348     wmv2dsp
2349 "
2350
2351 CMDLINE_SELECT="
2352     $ARCH_EXT_LIST
2353     $CONFIG_LIST
2354     $HAVE_LIST_CMDLINE
2355     $THREADS_LIST
2356     asm
2357     cross_compile
2358     debug
2359     extra_warnings
2360     logging
2361     lto
2362     optimizations
2363     rpath
2364     stripping
2365 "
2366
2367 PATHS_LIST="
2368     bindir
2369     datadir
2370     docdir
2371     incdir
2372     libdir
2373     mandir
2374     pkgconfigdir
2375     prefix
2376     shlibdir
2377     install_name_dir
2378 "
2379
2380 CMDLINE_SET="
2381     $PATHS_LIST
2382     ar
2383     arch
2384     as
2385     assert_level
2386     build_suffix
2387     cc
2388     objcc
2389     cpu
2390     cross_prefix
2391     custom_allocator
2392     cxx
2393     dep_cc
2394     doxygen
2395     env
2396     extra_version
2397     gas
2398     host_cc
2399     host_cflags
2400     host_extralibs
2401     host_ld
2402     host_ldflags
2403     host_os
2404     ignore_tests
2405     install
2406     ld
2407     ln_s
2408     logfile
2409     malloc_prefix
2410     nm
2411     optflags
2412     nvcc
2413     nvccflags
2414     pkg_config
2415     pkg_config_flags
2416     progs_suffix
2417     random_seed
2418     ranlib
2419     samples
2420     strip
2421     sws_max_filter_size
2422     sysinclude
2423     sysroot
2424     target_exec
2425     target_os
2426     target_path
2427     target_samples
2428     tempprefix
2429     toolchain
2430     valgrind
2431     x86asmexe
2432 "
2433
2434 CMDLINE_APPEND="
2435     extra_cflags
2436     extra_cxxflags
2437     extra_objcflags
2438     host_cppflags
2439 "
2440
2441 # code dependency declarations
2442
2443 # architecture extensions
2444
2445 armv5te_deps="arm"
2446 armv6_deps="arm"
2447 armv6t2_deps="arm"
2448 armv8_deps="aarch64"
2449 neon_deps_any="aarch64 arm"
2450 intrinsics_neon_deps="neon"
2451 vfp_deps_any="aarch64 arm"
2452 vfpv3_deps="vfp"
2453 setend_deps="arm"
2454
2455 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2456
2457 altivec_deps="ppc"
2458 dcbzl_deps="ppc"
2459 ldbrx_deps="ppc"
2460 ppc4xx_deps="ppc"
2461 vsx_deps="altivec"
2462 power8_deps="vsx"
2463
2464 loongson2_deps="mips"
2465 loongson3_deps="mips"
2466 mips32r2_deps="mips"
2467 mips32r5_deps="mips"
2468 mips32r6_deps="mips"
2469 mips64r2_deps="mips"
2470 mips64r6_deps="mips"
2471 mipsfpu_deps="mips"
2472 mipsdsp_deps="mips"
2473 mipsdspr2_deps="mips"
2474 mmi_deps="mips"
2475 msa_deps="mipsfpu"
2476
2477 cpunop_deps="i686"
2478 x86_64_select="i686"
2479 x86_64_suggest="fast_cmov"
2480
2481 amd3dnow_deps="mmx"
2482 amd3dnowext_deps="amd3dnow"
2483 i686_deps="x86"
2484 mmx_deps="x86"
2485 mmxext_deps="mmx"
2486 sse_deps="mmxext"
2487 sse2_deps="sse"
2488 sse3_deps="sse2"
2489 ssse3_deps="sse3"
2490 sse4_deps="ssse3"
2491 sse42_deps="sse4"
2492 aesni_deps="sse42"
2493 avx_deps="sse42"
2494 xop_deps="avx"
2495 fma3_deps="avx"
2496 fma4_deps="avx"
2497 avx2_deps="avx"
2498 avx512_deps="avx2"
2499
2500 mmx_external_deps="x86asm"
2501 mmx_inline_deps="inline_asm x86"
2502 mmx_suggest="mmx_external mmx_inline"
2503
2504 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2505     eval dep=\$${ext}_deps
2506     eval ${ext}_external_deps='"${dep}_external"'
2507     eval ${ext}_inline_deps='"${dep}_inline"'
2508     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2509 done
2510
2511 aligned_stack_if_any="aarch64 ppc x86"
2512 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2513 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2514 fast_unaligned_if_any="aarch64 ppc x86"
2515 simd_align_16_if_any="altivec neon sse"
2516 simd_align_32_if_any="avx"
2517 simd_align_64_if_any="avx512"
2518
2519 # system capabilities
2520 linux_perf_deps="linux_perf_event_h"
2521 symver_if_any="symver_asm_label symver_gnu_asm"
2522 valgrind_backtrace_conflict="optimizations"
2523 valgrind_backtrace_deps="valgrind_valgrind_h"
2524
2525 # threading support
2526 atomics_gcc_if="sync_val_compare_and_swap"
2527 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2528 atomics_win32_if="MemoryBarrier"
2529 atomics_native_if_any="$ATOMICS_LIST"
2530 w32threads_deps="atomics_native"
2531 threads_if_any="$THREADS_LIST"
2532
2533 # subsystems
2534 cbs_h264_select="cbs golomb"
2535 cbs_h265_select="cbs golomb"
2536 cbs_mpeg2_select="cbs"
2537 cbs_vp9_select="cbs"
2538 dct_select="rdft"
2539 dirac_parse_select="golomb"
2540 dnn_suggest="libtensorflow"
2541 error_resilience_select="me_cmp"
2542 faandct_deps="faan"
2543 faandct_select="fdctdsp"
2544 faanidct_deps="faan"
2545 faanidct_select="idctdsp"
2546 h264dsp_select="startcode"
2547 hevcparse_select="golomb"
2548 frame_thread_encoder_deps="encoders threads"
2549 intrax8_select="blockdsp idctdsp"
2550 mdct_select="fft"
2551 mdct15_select="fft"
2552 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2553 mpeg_er_select="error_resilience"
2554 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2555 mpegaudiodsp_select="dct"
2556 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2557 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2558 vc1dsp_select="h264chroma qpeldsp startcode"
2559 rdft_select="fft"
2560
2561 # decoders / encoders
2562 aac_decoder_select="adts_header mdct15 mdct sinewin"
2563 aac_fixed_decoder_select="adts_header mdct sinewin"
2564 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2565 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2566 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2567 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2568 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2569 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2570 adpcm_g722_decoder_select="g722dsp"
2571 adpcm_g722_encoder_select="g722dsp"
2572 aic_decoder_select="golomb idctdsp"
2573 alac_encoder_select="lpc"
2574 als_decoder_select="bswapdsp"
2575 amrnb_decoder_select="lsp"
2576 amrwb_decoder_select="lsp"
2577 amv_decoder_select="sp5x_decoder exif"
2578 amv_encoder_select="jpegtables mpegvideoenc"
2579 ape_decoder_select="bswapdsp llauddsp"
2580 apng_decoder_deps="zlib"
2581 apng_encoder_deps="zlib"
2582 apng_encoder_select="llvidencdsp"
2583 aptx_decoder_select="audio_frame_queue"
2584 aptx_encoder_select="audio_frame_queue"
2585 aptx_hd_decoder_select="audio_frame_queue"
2586 aptx_hd_encoder_select="audio_frame_queue"
2587 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2588 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2589 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2590 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2591 atrac1_decoder_select="mdct sinewin"
2592 atrac3_decoder_select="mdct"
2593 atrac3p_decoder_select="mdct sinewin"
2594 atrac9_decoder_select="mdct"
2595 avrn_decoder_select="exif jpegtables"
2596 bink_decoder_select="blockdsp hpeldsp"
2597 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2598 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2599 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2600 clearvideo_decoder_select="idctdsp"
2601 cllc_decoder_select="bswapdsp"
2602 comfortnoise_encoder_select="lpc"
2603 cook_decoder_select="audiodsp mdct sinewin"
2604 cscd_decoder_select="lzo"
2605 cscd_decoder_suggest="zlib"
2606 dca_decoder_select="mdct"
2607 dds_decoder_select="texturedsp"
2608 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2609 dnxhd_decoder_select="blockdsp idctdsp"
2610 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2611 dolby_e_decoder_select="mdct"
2612 dvvideo_decoder_select="dvprofile idctdsp"
2613 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2614 dxa_decoder_deps="zlib"
2615 dxv_decoder_select="lzf texturedsp"
2616 eac3_decoder_select="ac3_decoder"
2617 eac3_encoder_select="ac3_encoder"
2618 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2619 eatgq_decoder_select="aandcttables"
2620 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2621 exr_decoder_deps="zlib"
2622 ffv1_decoder_select="rangecoder"
2623 ffv1_encoder_select="rangecoder"
2624 ffvhuff_decoder_select="huffyuv_decoder"
2625 ffvhuff_encoder_select="huffyuv_encoder"
2626 fic_decoder_select="golomb"
2627 flac_decoder_select="flacdsp"
2628 flac_encoder_select="bswapdsp flacdsp lpc"
2629 flashsv2_decoder_deps="zlib"
2630 flashsv2_encoder_deps="zlib"
2631 flashsv_decoder_deps="zlib"
2632 flashsv_encoder_deps="zlib"
2633 flv_decoder_select="h263_decoder"
2634 flv_encoder_select="h263_encoder"
2635 fourxm_decoder_select="blockdsp bswapdsp"
2636 fraps_decoder_select="bswapdsp huffman"
2637 g2m_decoder_deps="zlib"
2638 g2m_decoder_select="blockdsp idctdsp jpegtables"
2639 g729_decoder_select="audiodsp"
2640 h261_decoder_select="mpegvideo"
2641 h261_encoder_select="mpegvideoenc"
2642 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2643 h263_encoder_select="h263dsp mpegvideoenc"
2644 h263i_decoder_select="h263_decoder"
2645 h263p_decoder_select="h263_decoder"
2646 h263p_encoder_select="h263_encoder"
2647 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2648 h264_decoder_suggest="error_resilience"
2649 hap_decoder_select="snappy texturedsp"
2650 hap_encoder_deps="libsnappy"
2651 hap_encoder_select="texturedspenc"
2652 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2653 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2654 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2655 iac_decoder_select="imc_decoder"
2656 imc_decoder_select="bswapdsp fft mdct sinewin"
2657 indeo3_decoder_select="hpeldsp"
2658 indeo4_decoder_select="ividsp"
2659 indeo5_decoder_select="ividsp"
2660 interplay_video_decoder_select="hpeldsp"
2661 jpegls_decoder_select="mjpeg_decoder"
2662 jv_decoder_select="blockdsp"
2663 lagarith_decoder_select="llviddsp"
2664 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2665 magicyuv_decoder_select="llviddsp"
2666 magicyuv_encoder_select="llvidencdsp"
2667 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2668 metasound_decoder_select="lsp mdct sinewin"
2669 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2670 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2671 mjpeg_encoder_select="jpegtables mpegvideoenc"
2672 mjpegb_decoder_select="mjpeg_decoder"
2673 mlp_decoder_select="mlp_parser"
2674 mlp_encoder_select="lpc"
2675 motionpixels_decoder_select="bswapdsp"
2676 mp1_decoder_select="mpegaudio"
2677 mp1float_decoder_select="mpegaudio"
2678 mp2_decoder_select="mpegaudio"
2679 mp2float_decoder_select="mpegaudio"
2680 mp3_decoder_select="mpegaudio"
2681 mp3adu_decoder_select="mpegaudio"
2682 mp3adufloat_decoder_select="mpegaudio"
2683 mp3float_decoder_select="mpegaudio"
2684 mp3on4_decoder_select="mpegaudio"
2685 mp3on4float_decoder_select="mpegaudio"
2686 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2687 mpc8_decoder_select="mpegaudiodsp"
2688 mpegvideo_decoder_select="mpegvideo"
2689 mpeg1video_decoder_select="mpegvideo"
2690 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2691 mpeg2video_decoder_select="mpegvideo"
2692 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2693 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2694 mpeg4_encoder_select="h263_encoder"
2695 msa1_decoder_select="mss34dsp"
2696 mscc_decoder_deps="zlib"
2697 msmpeg4v1_decoder_select="h263_decoder"
2698 msmpeg4v2_decoder_select="h263_decoder"
2699 msmpeg4v2_encoder_select="h263_encoder"
2700 msmpeg4v3_decoder_select="h263_decoder"
2701 msmpeg4v3_encoder_select="h263_encoder"
2702 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2703 mts2_decoder_select="mss34dsp"
2704 mwsc_decoder_deps="zlib"
2705 mxpeg_decoder_select="mjpeg_decoder"
2706 nellymoser_decoder_select="mdct sinewin"
2707 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2708 nuv_decoder_select="idctdsp lzo"
2709 on2avc_decoder_select="mdct"
2710 opus_decoder_deps="swresample"
2711 opus_decoder_select="mdct15"
2712 opus_encoder_select="audio_frame_queue mdct15"
2713 png_decoder_deps="zlib"
2714 png_encoder_deps="zlib"
2715 png_encoder_select="llvidencdsp"
2716 prores_decoder_select="blockdsp idctdsp"
2717 prores_encoder_select="fdctdsp"
2718 qcelp_decoder_select="lsp"
2719 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2720 ra_144_decoder_select="audiodsp"
2721 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2722 ralf_decoder_select="golomb"
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