avformat/matroskaenc: reindent after the previous commit
[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-libklvanc       enable Kernel Labs VANC processing [no]
243   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
244   --enable-liblensfun      enable lensfun lens correction [no]
245   --enable-libmodplug      enable ModPlug via libmodplug [no]
246   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
247   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
248   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
249   --enable-libopencv       enable video filtering via libopencv [no]
250   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
251   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
252   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
253   --enable-libopus         enable Opus de/encoding via libopus [no]
254   --enable-libpulse        enable Pulseaudio input via libpulse [no]
255   --enable-librsvg         enable SVG rasterization via librsvg [no]
256   --enable-librubberband   enable rubberband needed for rubberband filter [no]
257   --enable-librtmp         enable RTMP[E] support via librtmp [no]
258   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
259   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
260   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
261   --enable-libsoxr         enable Include libsoxr resampling [no]
262   --enable-libspeex        enable Speex de/encoding via libspeex [no]
263   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
264   --enable-libssh          enable SFTP protocol via libssh [no]
265   --enable-libtensorflow   enable TensorFlow as a DNN module backend
266                            for DNN based filters like sr [no]
267   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
268   --enable-libtheora       enable Theora encoding via libtheora [no]
269   --enable-libtls          enable LibreSSL (via libtls), needed for https support
270                            if openssl, gnutls or mbedtls is not used [no]
271   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
272   --enable-libv4l2         enable libv4l2/v4l-utils [no]
273   --enable-libvidstab      enable video stabilization using vid.stab [no]
274   --enable-libvmaf         enable vmaf filter via libvmaf [no]
275   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
276   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
277                            native implementation exists [no]
278   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
279   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
280   --enable-libwebp         enable WebP encoding via libwebp [no]
281   --enable-libx264         enable H.264 encoding via x264 [no]
282   --enable-libx265         enable HEVC encoding via x265 [no]
283   --enable-libxavs         enable AVS encoding via xavs [no]
284   --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
285   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
286   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
287   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
288   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
289   --enable-libxvid         enable Xvid encoding via xvidcore,
290                            native MPEG-4/Xvid encoder exists [no]
291   --enable-libxml2         enable XML parsing using the C library libxml2, needed
292                            for dash demuxing support [no]
293   --enable-libzimg         enable z.lib, needed for zscale filter [no]
294   --enable-libzmq          enable message passing via libzmq [no]
295   --enable-libzvbi         enable teletext support via libzvbi [no]
296   --enable-lv2             enable LV2 audio filtering [no]
297   --disable-lzma           disable lzma [autodetect]
298   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
299   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
300   --enable-mbedtls         enable mbedTLS, needed for https support
301                            if openssl, gnutls or libtls is not used [no]
302   --enable-mediacodec      enable Android MediaCodec support [no]
303   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
304   --enable-openal          enable OpenAL 1.1 capture support [no]
305   --enable-opencl          enable OpenCL processing [no]
306   --enable-opengl          enable OpenGL rendering [no]
307   --enable-openssl         enable openssl, needed for https support
308                            if gnutls, libtls or mbedtls is not used [no]
309   --disable-sndio          disable sndio support [autodetect]
310   --disable-schannel       disable SChannel SSP, needed for TLS support on
311                            Windows if openssl and gnutls are not used [autodetect]
312   --disable-sdl2           disable sdl2 [autodetect]
313   --disable-securetransport disable Secure Transport, needed for TLS support
314                            on OSX if openssl and gnutls are not used [autodetect]
315   --enable-vapoursynth     enable VapourSynth demuxer [no]
316   --disable-xlib           disable xlib [autodetect]
317   --disable-zlib           disable zlib [autodetect]
318
319   The following libraries provide various hardware acceleration features:
320   --disable-amf            disable AMF video encoding code [autodetect]
321   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
322   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
323   --disable-cuvid          disable Nvidia CUVID support [autodetect]
324   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
325   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
326   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
327   --enable-libdrm          enable DRM code (Linux) [no]
328   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
329   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
330   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
331   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
332   --disable-nvenc          disable Nvidia video encoding code [autodetect]
333   --enable-omx             enable OpenMAX IL code [no]
334   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
335   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
336   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
337   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
338   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
339   --disable-videotoolbox   disable VideoToolbox code [autodetect]
340
341 Toolchain options:
342   --arch=ARCH              select architecture [$arch]
343   --cpu=CPU                select the minimum required CPU (affects
344                            instruction selection, may crash on older CPUs)
345   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
346   --progs-suffix=SUFFIX    program name suffix []
347   --enable-cross-compile   assume a cross-compiler is used
348   --sysroot=PATH           root of cross-build tree
349   --sysinclude=PATH        location of cross-build system headers
350   --target-os=OS           compiler targets OS [$target_os]
351   --target-exec=CMD        command to run executables on target
352   --target-path=DIR        path to view of build directory on target
353   --target-samples=DIR     path to samples directory on target
354   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
355   --toolchain=NAME         set tool defaults according to NAME
356                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
357                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
358                            valgrind-massif, valgrind-memcheck,
359                            msvc, icl, gcov, llvm-cov, hardened)
360   --nm=NM                  use nm tool NM [$nm_default]
361   --ar=AR                  use archive tool AR [$ar_default]
362   --as=AS                  use assembler AS [$as_default]
363   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
364   --strip=STRIP            use strip tool STRIP [$strip_default]
365   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
366   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
367   --cc=CC                  use C compiler CC [$cc_default]
368   --cxx=CXX                use C compiler CXX [$cxx_default]
369   --objcc=OCC              use ObjC compiler OCC [$cc_default]
370   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
371   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
372   --ld=LD                  use linker LD [$ld_default]
373   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
374   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
375   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
376   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
377   --host-cc=HOSTCC         use host C compiler HOSTCC
378   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
379   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
380   --host-ld=HOSTLD         use host linker HOSTLD
381   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
382   --host-libs=HLIBS        use libs HLIBS when linking for host
383   --host-os=OS             compiler host OS [$target_os]
384   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
385   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
386   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
387   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
388   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
389   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
390   --extra-libs=ELIBS       add ELIBS [$ELIBS]
391   --extra-version=STRING   version string suffix []
392   --optflags=OPTFLAGS      override optimization-related compiler flags
393   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
394   --build-suffix=SUFFIX    library name suffix []
395   --enable-pic             build position-independent code
396   --enable-thumb           compile for Thumb instruction set
397   --enable-lto             use link-time optimization
398   --env="ENV=override"     override the environment variables
399
400 Advanced options (experts only):
401   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
402   --custom-allocator=NAME  use a supported custom allocator
403   --disable-symver         disable symbol versioning
404   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
405   --disable-safe-bitstream-reader
406                            disable buffer boundary checking in bitreaders
407                            (faster, but may crash)
408   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
409
410 Optimization options (experts only):
411   --disable-asm            disable all assembly optimizations
412   --disable-altivec        disable AltiVec optimizations
413   --disable-vsx            disable VSX optimizations
414   --disable-power8         disable POWER8 optimizations
415   --disable-amd3dnow       disable 3DNow! optimizations
416   --disable-amd3dnowext    disable 3DNow! extended optimizations
417   --disable-mmx            disable MMX optimizations
418   --disable-mmxext         disable MMXEXT optimizations
419   --disable-sse            disable SSE optimizations
420   --disable-sse2           disable SSE2 optimizations
421   --disable-sse3           disable SSE3 optimizations
422   --disable-ssse3          disable SSSE3 optimizations
423   --disable-sse4           disable SSE4 optimizations
424   --disable-sse42          disable SSE4.2 optimizations
425   --disable-avx            disable AVX optimizations
426   --disable-xop            disable XOP optimizations
427   --disable-fma3           disable FMA3 optimizations
428   --disable-fma4           disable FMA4 optimizations
429   --disable-avx2           disable AVX2 optimizations
430   --disable-avx512         disable AVX-512 optimizations
431   --disable-aesni          disable AESNI optimizations
432   --disable-armv5te        disable armv5te optimizations
433   --disable-armv6          disable armv6 optimizations
434   --disable-armv6t2        disable armv6t2 optimizations
435   --disable-vfp            disable VFP optimizations
436   --disable-neon           disable NEON optimizations
437   --disable-inline-asm     disable use of inline assembly
438   --disable-x86asm         disable use of standalone x86 assembly
439   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
440   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
441   --disable-msa            disable MSA optimizations
442   --disable-mipsfpu        disable floating point MIPS optimizations
443   --disable-mmi            disable Loongson SIMD optimizations
444   --disable-fast-unaligned consider unaligned accesses slow
445
446 Developer options (useful when working on FFmpeg itself):
447   --disable-debug          disable debugging symbols
448   --enable-debug=LEVEL     set the debug level [$debuglevel]
449   --disable-optimizations  disable compiler optimizations
450   --enable-extra-warnings  enable more compiler warnings
451   --disable-stripping      disable stripping of executables and shared libraries
452   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
453                            2 causes a slowdown at runtime.
454   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
455   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
456                            leaks and errors, using the specified valgrind binary.
457                            Cannot be combined with --target-exec
458   --enable-ftrapv          Trap arithmetic overflows
459   --samples=PATH           location of test samples for FATE, if not set use
460                            \$FATE_SAMPLES at make invocation time.
461   --enable-neon-clobber-test check NEON registers for clobbering (should be
462                            used only for debugging purposes)
463   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
464                            should be used only for debugging purposes)
465   --enable-random          randomly enable/disable components
466   --disable-random
467   --enable-random=LIST     randomly enable/disable specific components or
468   --disable-random=LIST    component groups. LIST is a comma-separated list
469                            of NAME[:PROB] entries where NAME is a component
470                            (group) and PROB the probability associated with
471                            NAME (default 0.5).
472   --random-seed=VALUE      seed value for --enable/disable-random
473   --disable-valgrind-backtrace do not print a backtrace under Valgrind
474                            (only applies to --disable-optimizations builds)
475   --enable-osfuzz          Enable building fuzzer tool
476   --libfuzzer=PATH         path to libfuzzer
477   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
478                            in the name) of tests whose result is ignored
479   --enable-linux-perf      enable Linux Performance Monitor API
480
481 NOTE: Object files are built at the place where configure is launched.
482 EOF
483   exit 0
484 }
485
486 if test -t 1 && which tput >/dev/null 2>&1; then
487     ncolors=$(tput colors)
488     if test -n "$ncolors" && test $ncolors -ge 8; then
489         bold_color=$(tput bold)
490         warn_color=$(tput setaf 3)
491         error_color=$(tput setaf 1)
492         reset_color=$(tput sgr0)
493     fi
494     # 72 used instead of 80 since that's the default of pr
495     ncols=$(tput cols)
496 fi
497 : ${ncols:=72}
498
499 log(){
500     echo "$@" >> $logfile
501 }
502
503 log_file(){
504     log BEGIN $1
505     pr -n -t $1 >> $logfile
506     log END $1
507 }
508
509 warn(){
510     log "WARNING: $*"
511     WARNINGS="${WARNINGS}WARNING: $*\n"
512 }
513
514 die(){
515     log "$@"
516     echo "$error_color$bold_color$@$reset_color"
517     cat <<EOF
518
519 If you think configure made a mistake, make sure you are using the latest
520 version from Git.  If the latest version fails, report the problem to the
521 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
522 EOF
523     if disabled logging; then
524         cat <<EOF
525 Rerun configure with logging enabled (do not use --disable-logging), and
526 include the log this produces with your report.
527 EOF
528     else
529         cat <<EOF
530 Include the log file "$logfile" produced by configure as this will help
531 solve the problem.
532 EOF
533     fi
534     exit 1
535 }
536
537 # Avoid locale weirdness, besides we really just want to translate ASCII.
538 toupper(){
539     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
540 }
541
542 tolower(){
543     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
544 }
545
546 c_escape(){
547     echo "$*" | sed 's/["\\]/\\\0/g'
548 }
549
550 sh_quote(){
551     v=$(echo "$1" | sed "s/'/'\\\\''/g")
552     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
553     echo "$v"
554 }
555
556 cleanws(){
557     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
558 }
559
560 filter(){
561     pat=$1
562     shift
563     for v; do
564         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
565     done
566 }
567
568 filter_out(){
569     pat=$1
570     shift
571     for v; do
572         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
573     done
574 }
575
576 map(){
577     m=$1
578     shift
579     for v; do eval $m; done
580 }
581
582 add_suffix(){
583     suffix=$1
584     shift
585     for v; do echo ${v}${suffix}; done
586 }
587
588 remove_suffix(){
589     suffix=$1
590     shift
591     for v; do echo ${v%$suffix}; done
592 }
593
594 set_all(){
595     value=$1
596     shift
597     for var in $*; do
598         eval $var=$value
599     done
600 }
601
602 set_weak(){
603     value=$1
604     shift
605     for var; do
606         eval : \${$var:=$value}
607     done
608 }
609
610 sanitize_var_name(){
611     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
612 }
613
614 set_sanitized(){
615     var=$1
616     shift
617     eval $(sanitize_var_name "$var")='$*'
618 }
619
620 get_sanitized(){
621     eval echo \$$(sanitize_var_name "$1")
622 }
623
624 pushvar(){
625     for pvar in $*; do
626         eval level=\${${pvar}_level:=0}
627         eval ${pvar}_${level}="\$$pvar"
628         eval ${pvar}_level=$(($level+1))
629     done
630 }
631
632 popvar(){
633     for pvar in $*; do
634         eval level=\${${pvar}_level:-0}
635         test $level = 0 && continue
636         eval level=$(($level-1))
637         eval $pvar="\${${pvar}_${level}}"
638         eval ${pvar}_level=$level
639         eval unset ${pvar}_${level}
640     done
641 }
642
643 request(){
644     for var in $*; do
645         eval ${var}_requested=yes
646         eval $var=
647     done
648 }
649
650 enable(){
651     set_all yes $*
652 }
653
654 disable(){
655     set_all no $*
656 }
657
658 enable_weak(){
659     set_weak yes $*
660 }
661
662 disable_weak(){
663     set_weak no $*
664 }
665
666 enable_sanitized(){
667     for var; do
668         enable $(sanitize_var_name $var)
669     done
670 }
671
672 disable_sanitized(){
673     for var; do
674         disable $(sanitize_var_name $var)
675     done
676 }
677
678 do_enable_deep(){
679     for var; do
680         enabled $var && continue
681         set -- $var
682         eval enable_deep \$${var}_select
683         var=$1
684         eval enable_deep_weak \$${var}_suggest
685     done
686 }
687
688 enable_deep(){
689     do_enable_deep $*
690     enable $*
691 }
692
693 enable_deep_weak(){
694     for var; do
695         disabled $var && continue
696         set -- $var
697         do_enable_deep $var
698         var=$1
699         enable_weak $var
700     done
701 }
702
703 requested(){
704     test "${1#!}" = "$1" && op="=" || op="!="
705     eval test "x\$${1#!}_requested" $op "xyes"
706 }
707
708 enabled(){
709     test "${1#!}" = "$1" && op="=" || op="!="
710     eval test "x\$${1#!}" $op "xyes"
711 }
712
713 disabled(){
714     test "${1#!}" = "$1" && op="=" || op="!="
715     eval test "x\$${1#!}" $op "xno"
716 }
717
718 enabled_all(){
719     for opt; do
720         enabled $opt || return 1
721     done
722 }
723
724 disabled_all(){
725     for opt; do
726         disabled $opt || return 1
727     done
728 }
729
730 enabled_any(){
731     for opt; do
732         enabled $opt && return 0
733     done
734 }
735
736 disabled_any(){
737     for opt; do
738         disabled $opt && return 0
739     done
740     return 1
741 }
742
743 set_default(){
744     for opt; do
745         eval : \${$opt:=\$${opt}_default}
746     done
747 }
748
749 is_in(){
750     value=$1
751     shift
752     for var in $*; do
753         [ $var = $value ] && return 0
754     done
755     return 1
756 }
757
758 # The cfg loop is very hot (several thousands iterations), and in bash also
759 # potentialy quite slow. Try to abort the iterations early, preferably without
760 # calling functions. 70%+ of the time cfg is already done or without deps.
761 check_deps(){
762     for cfg; do
763         eval [ x\$${cfg}_checking = xdone ] && continue
764         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
765
766         eval "
767         dep_all=\$${cfg}_deps
768         dep_any=\$${cfg}_deps_any
769         dep_con=\$${cfg}_conflict
770         dep_sel=\$${cfg}_select
771         dep_sgs=\$${cfg}_suggest
772         dep_ifa=\$${cfg}_if
773         dep_ifn=\$${cfg}_if_any
774         "
775
776         # most of the time here $cfg has no deps - avoid costly no-op work
777         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
778             eval ${cfg}_checking=inprogress
779
780             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
781             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
782             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
783
784             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
785             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
786             enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
787             enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
788             disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
789             disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
790
791             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
792
793             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
794                 # filter out library deps, these do not belong in extralibs
795                 is_in $dep $LIBRARY_LIST && continue
796                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
797             done
798         fi
799
800         eval ${cfg}_checking=done
801     done
802 }
803
804 print_config(){
805     pfx=$1
806     files=$2
807     shift 2
808     map 'eval echo "$v \${$v:-no}"' "$@" |
809     awk "BEGIN { split(\"$files\", files) }
810         {
811             c = \"$pfx\" toupper(\$1);
812             v = \$2;
813             sub(/yes/, 1, v);
814             sub(/no/,  0, v);
815             for (f in files) {
816                 file = files[f];
817                 if (file ~ /\\.h\$/) {
818                     printf(\"#define %s %d\\n\", c, v) >>file;
819                 } else if (file ~ /\\.asm\$/) {
820                     printf(\"%%define %s %d\\n\", c, v) >>file;
821                 } else if (file ~ /\\.mak\$/) {
822                     n = -v ? \"\" : \"!\";
823                     printf(\"%s%s=yes\\n\", n, c) >>file;
824                 } else if (file ~ /\\.texi\$/) {
825                     pre = -v ? \"\" : \"@c \";
826                     yesno = \$2;
827                     c2 = tolower(c);
828                     gsub(/_/, \"-\", c2);
829                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
830                 }
831             }
832         }"
833 }
834
835 print_enabled(){
836     suf=$1
837     shift
838     for v; do
839         enabled $v && printf "%s\n" ${v%$suf}
840     done
841 }
842
843 append(){
844     var=$1
845     shift
846     eval "$var=\"\$$var $*\""
847 }
848
849 prepend(){
850     var=$1
851     shift
852     eval "$var=\"$* \$$var\""
853 }
854
855 reverse () {
856     eval '
857         reverse_out=
858         for v in $'$1'; do
859             reverse_out="$v $reverse_out"
860         done
861         '$1'=$reverse_out
862     '
863 }
864
865 # keeps the last occurence of each non-unique item
866 unique(){
867     unique_out=
868     eval unique_in=\$$1
869     reverse unique_in
870     for v in $unique_in; do
871         # " $unique_out" +space such that every item is surrounded with spaces
872         case " $unique_out" in *" $v "*) continue; esac  # already in list
873         unique_out="$unique_out$v "
874     done
875     reverse unique_out
876     eval $1=\$unique_out
877 }
878
879 resolve(){
880     resolve_out=
881     eval resolve_in=\$$1
882     for v in $resolve_in; do
883         eval 'resolve_out="$resolve_out$'$v' "'
884     done
885     eval $1=\$resolve_out
886 }
887
888 add_cppflags(){
889     append CPPFLAGS "$@"
890 }
891
892 add_cflags(){
893     append CFLAGS $($cflags_filter "$@")
894 }
895
896 add_cflags_headers(){
897     append CFLAGS_HEADERS $($cflags_filter "$@")
898 }
899
900 add_cxxflags(){
901     append CXXFLAGS $($cflags_filter "$@")
902 }
903
904 add_objcflags(){
905     append OBJCFLAGS $($objcflags_filter "$@")
906 }
907
908 add_asflags(){
909     append ASFLAGS $($asflags_filter "$@")
910 }
911
912 add_ldflags(){
913     append LDFLAGS $($ldflags_filter "$@")
914 }
915
916 add_ldexeflags(){
917     append LDEXEFLAGS $($ldflags_filter "$@")
918 }
919
920 add_ldsoflags(){
921     append LDSOFLAGS $($ldflags_filter "$@")
922 }
923
924 add_extralibs(){
925     prepend extralibs $($ldflags_filter "$@")
926 }
927
928 add_stripflags(){
929     append ASMSTRIPFLAGS "$@"
930 }
931
932 add_host_cppflags(){
933     append host_cppflags "$@"
934 }
935
936 add_host_cflags(){
937     append host_cflags $($host_cflags_filter "$@")
938 }
939
940 add_host_ldflags(){
941     append host_ldflags $($host_ldflags_filter "$@")
942 }
943
944 add_compat(){
945     append compat_objs $1
946     shift
947     map 'add_cppflags -D$v' "$@"
948 }
949
950 test_cmd(){
951     log "$@"
952     "$@" >> $logfile 2>&1
953 }
954
955 test_stat(){
956     log test_stat "$@"
957     stat "$1" >> $logfile 2>&1
958 }
959
960 cc_e(){
961     eval printf '%s\\n' $CC_E
962 }
963
964 cc_o(){
965     eval printf '%s\\n' $CC_O
966 }
967
968 as_o(){
969     eval printf '%s\\n' $AS_O
970 }
971
972 x86asm_o(){
973     eval printf '%s\\n' $X86ASM_O
974 }
975
976 ld_o(){
977     eval printf '%s\\n' $LD_O
978 }
979
980 hostcc_e(){
981     eval printf '%s\\n' $HOSTCC_E
982 }
983
984 hostcc_o(){
985     eval printf '%s\\n' $HOSTCC_O
986 }
987
988 test_cc(){
989     log test_cc "$@"
990     cat > $TMPC
991     log_file $TMPC
992     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
993 }
994
995 test_cxx(){
996     log test_cxx "$@"
997     cat > $TMPCPP
998     log_file $TMPCPP
999     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
1000 }
1001
1002 test_objcc(){
1003     log test_objcc "$@"
1004     cat > $TMPM
1005     log_file $TMPM
1006     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1007 }
1008
1009 test_cpp(){
1010     log test_cpp "$@"
1011     cat > $TMPC
1012     log_file $TMPC
1013     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1014 }
1015
1016 test_as(){
1017     log test_as "$@"
1018     cat > $TMPS
1019     log_file $TMPS
1020     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1021 }
1022
1023 test_x86asm(){
1024     log test_x86asm "$@"
1025     echo "$1" > $TMPASM
1026     log_file $TMPASM
1027     shift
1028     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1029 }
1030
1031 check_cmd(){
1032     log check_cmd "$@"
1033     cmd=$1
1034     disabled $cmd && return
1035     disable $cmd
1036     test_cmd $@ && enable $cmd
1037 }
1038
1039 check_as(){
1040     log check_as "$@"
1041     name=$1
1042     code=$2
1043     shift 2
1044     disable $name
1045     test_as $@ <<EOF && enable $name
1046 $code
1047 EOF
1048 }
1049
1050 check_inline_asm(){
1051     log check_inline_asm "$@"
1052     name="$1"
1053     code="$2"
1054     shift 2
1055     disable $name
1056     test_cc "$@" <<EOF && enable $name
1057 void foo(void){ __asm__ volatile($code); }
1058 EOF
1059 }
1060
1061 check_inline_asm_flags(){
1062     log check_inline_asm_flags "$@"
1063     name="$1"
1064     code="$2"
1065     flags=''
1066     shift 2
1067     while [ "$1" != "" ]; do
1068       append flags $1
1069       shift
1070     done;
1071     disable $name
1072     cat > $TMPC <<EOF
1073 void foo(void){ __asm__ volatile($code); }
1074 EOF
1075     log_file $TMPC
1076     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1077     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1078 }
1079
1080 check_insn(){
1081     log check_insn "$@"
1082     check_inline_asm ${1}_inline "\"$2\""
1083     check_as ${1}_external "$2"
1084 }
1085
1086 check_x86asm(){
1087     log check_x86asm "$@"
1088     name=$1
1089     shift
1090     disable $name
1091     test_x86asm "$@" && enable $name
1092 }
1093
1094 test_ld(){
1095     log test_ld "$@"
1096     type=$1
1097     shift 1
1098     flags=$(filter_out '-l*|*.so' $@)
1099     libs=$(filter '-l*|*.so' $@)
1100     test_$type $($cflags_filter $flags) || return
1101     flags=$($ldflags_filter $flags)
1102     libs=$($ldflags_filter $libs)
1103     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1104 }
1105
1106 check_ld(){
1107     log check_ld "$@"
1108     type=$1
1109     name=$2
1110     shift 2
1111     disable $name
1112     test_ld $type $@ && enable $name
1113 }
1114
1115 print_include(){
1116     hdr=$1
1117     test "${hdr%.h}" = "${hdr}" &&
1118         echo "#include $hdr"    ||
1119         echo "#include <$hdr>"
1120 }
1121
1122 test_code(){
1123     log test_code "$@"
1124     check=$1
1125     headers=$2
1126     code=$3
1127     shift 3
1128     {
1129         for hdr in $headers; do
1130             print_include $hdr
1131         done
1132         echo "int main(void) { $code; return 0; }"
1133     } | test_$check "$@"
1134 }
1135
1136 check_cppflags(){
1137     log check_cppflags "$@"
1138     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1139 #include <stdlib.h>
1140 EOF
1141 }
1142
1143 test_cflags(){
1144     log test_cflags "$@"
1145     set -- $($cflags_filter "$@")
1146     test_cc "$@" <<EOF
1147 int x;
1148 EOF
1149 }
1150
1151 check_cflags(){
1152     log check_cflags "$@"
1153     test_cflags "$@" && add_cflags "$@"
1154 }
1155
1156 check_cxxflags(){
1157     log check_cxxflags "$@"
1158     set -- $($cflags_filter "$@")
1159     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1160 int x;
1161 EOF
1162 }
1163
1164 test_objcflags(){
1165     log test_objcflags "$@"
1166     set -- $($objcflags_filter "$@")
1167     test_objcc "$@" <<EOF
1168 int x;
1169 EOF
1170 }
1171
1172 check_objcflags(){
1173     log check_objcflags "$@"
1174     test_objcflags "$@" && add_objcflags "$@"
1175 }
1176
1177 test_ldflags(){
1178     log test_ldflags "$@"
1179     set -- $($ldflags_filter "$@")
1180     test_ld "cc" "$@" <<EOF
1181 int main(void){ return 0; }
1182 EOF
1183 }
1184
1185 check_ldflags(){
1186     log check_ldflags "$@"
1187     test_ldflags "$@" && add_ldflags "$@"
1188 }
1189
1190 test_stripflags(){
1191     log test_stripflags "$@"
1192     # call test_cc to get a fresh TMPO
1193     test_cc <<EOF
1194 int main(void) { return 0; }
1195 EOF
1196     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1197 }
1198
1199 check_stripflags(){
1200     log check_stripflags "$@"
1201     test_stripflags "$@" && add_stripflags "$@"
1202 }
1203
1204 check_headers(){
1205     log check_headers "$@"
1206     headers=$1
1207     shift
1208     disable_sanitized $headers
1209     {
1210         for hdr in $headers; do
1211             print_include $hdr
1212         done
1213         echo "int x;"
1214     } | test_cpp "$@" && enable_sanitized $headers
1215 }
1216
1217 check_header_objcc(){
1218     log check_header_objcc "$@"
1219     rm -f -- "$TMPO"
1220     header=$1
1221     shift
1222     disable_sanitized $header
1223     {
1224        echo "#include <$header>"
1225        echo "int main(void) { return 0; }"
1226     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1227 }
1228
1229 check_apple_framework(){
1230     log check_apple_framework "$@"
1231     framework="$1"
1232     name="$(tolower $framework)"
1233     header="${framework}/${framework}.h"
1234     disable $name
1235     check_header_objcc $header &&
1236         enable $name && eval ${name}_extralibs='"-framework $framework"'
1237 }
1238
1239 check_func(){
1240     log check_func "$@"
1241     func=$1
1242     shift
1243     disable $func
1244     test_ld "cc" "$@" <<EOF && enable $func
1245 extern int $func();
1246 int main(void){ $func(); }
1247 EOF
1248 }
1249
1250 check_complexfunc(){
1251     log check_complexfunc "$@"
1252     func=$1
1253     narg=$2
1254     shift 2
1255     test $narg = 2 && args="f, g" || args="f * I"
1256     disable $func
1257     test_ld "cc" "$@" <<EOF && enable $func
1258 #include <complex.h>
1259 #include <math.h>
1260 float foo(complex float f, complex float g) { return $func($args); }
1261 int main(void){ return (int) foo; }
1262 EOF
1263 }
1264
1265 check_mathfunc(){
1266     log check_mathfunc "$@"
1267     func=$1
1268     narg=$2
1269     shift 2
1270     test $narg = 2 && args="f, g" || args="f"
1271     disable $func
1272     test_ld "cc" "$@" <<EOF && enable $func
1273 #include <math.h>
1274 float foo(float f, float g) { return $func($args); }
1275 int main(void){ return (int) foo; }
1276 EOF
1277 }
1278
1279 check_func_headers(){
1280     log check_func_headers "$@"
1281     headers=$1
1282     funcs=$2
1283     shift 2
1284     {
1285         for hdr in $headers; do
1286             print_include $hdr
1287         done
1288         echo "#include <stdint.h>"
1289         for func in $funcs; do
1290             echo "long check_$func(void) { return (long) $func; }"
1291         done
1292         echo "int main(void) { int ret = 0;"
1293         # LTO could optimize out the test functions without this
1294         for func in $funcs; do
1295             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1296         done
1297         echo "return ret; }"
1298     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1299 }
1300
1301 check_class_headers_cpp(){
1302     log check_class_headers_cpp "$@"
1303     headers=$1
1304     classes=$2
1305     shift 2
1306     {
1307         for hdr in $headers; do
1308             echo "#include <$hdr>"
1309         done
1310         echo "int main(void) { "
1311         i=1
1312         for class in $classes; do
1313             echo "$class obj$i;"
1314             i=$(expr $i + 1)
1315         done
1316         echo "return 0; }"
1317     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1318 }
1319
1320 test_cpp_condition(){
1321     log test_cpp_condition "$@"
1322     header=$1
1323     condition=$2
1324     shift 2
1325     test_cpp "$@" <<EOF
1326 #include <$header>
1327 #if !($condition)
1328 #error "unsatisfied condition: $condition"
1329 #endif
1330 EOF
1331 }
1332
1333 check_cpp_condition(){
1334     log check_cpp_condition "$@"
1335     name=$1
1336     shift 1
1337     disable $name
1338     test_cpp_condition "$@" && enable $name
1339 }
1340
1341 test_cflags_cc(){
1342     log test_cflags_cc "$@"
1343     flags=$1
1344     header=$2
1345     condition=$3
1346     shift 3
1347     set -- $($cflags_filter "$flags")
1348     test_cc "$@" <<EOF
1349 #include <$header>
1350 #if !($condition)
1351 #error "unsatisfied condition: $condition"
1352 #endif
1353 EOF
1354 }
1355
1356 check_lib(){
1357     log check_lib "$@"
1358     name="$1"
1359     headers="$2"
1360     funcs="$3"
1361     shift 3
1362     disable $name
1363     check_func_headers "$headers" "$funcs" "$@" &&
1364         enable $name && eval ${name}_extralibs="\$@"
1365 }
1366
1367 check_lib_cpp(){
1368     log check_lib_cpp "$@"
1369     name="$1"
1370     headers="$2"
1371     classes="$3"
1372     shift 3
1373     disable $name
1374     check_class_headers_cpp "$headers" "$classes" "$@" &&
1375         enable $name && eval ${name}_extralibs="\$@"
1376 }
1377
1378 test_pkg_config(){
1379     log test_pkg_config "$@"
1380     name="$1"
1381     pkg_version="$2"
1382     pkg="${2%% *}"
1383     headers="$3"
1384     funcs="$4"
1385     shift 4
1386     disable $name
1387     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1388     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1389     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1390     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1391         enable $name &&
1392         set_sanitized "${name}_cflags"    $pkg_cflags &&
1393         set_sanitized "${name}_extralibs" $pkg_libs
1394 }
1395
1396 check_pkg_config(){
1397     log check_pkg_config "$@"
1398     name="$1"
1399     test_pkg_config "$@" &&
1400         eval add_cflags \$${name}_cflags
1401 }
1402
1403 test_exec(){
1404     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1405 }
1406
1407 check_exec_crash(){
1408     log check_exec_crash "$@"
1409     code=$(cat)
1410
1411     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1412     # are safe but may not be available everywhere.  Thus we use
1413     # raise(SIGTERM) instead.  The check is run in a subshell so we
1414     # can redirect the "Terminated" message from the shell.  SIGBUS
1415     # is not defined by standard C so it is used conditionally.
1416
1417     (test_exec "$@") >> $logfile 2>&1 <<EOF
1418 #include <signal.h>
1419 static void sighandler(int sig){
1420     raise(SIGTERM);
1421 }
1422 int foo(void){
1423     $code
1424 }
1425 int (*func_ptr)(void) = foo;
1426 int main(void){
1427     signal(SIGILL, sighandler);
1428     signal(SIGFPE, sighandler);
1429     signal(SIGSEGV, sighandler);
1430 #ifdef SIGBUS
1431     signal(SIGBUS, sighandler);
1432 #endif
1433     return func_ptr();
1434 }
1435 EOF
1436 }
1437
1438 check_type(){
1439     log check_type "$@"
1440     headers=$1
1441     type=$2
1442     shift 2
1443     disable_sanitized "$type"
1444     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1445 }
1446
1447 check_struct(){
1448     log check_struct "$@"
1449     headers=$1
1450     struct=$2
1451     member=$3
1452     shift 3
1453     disable_sanitized "${struct}_${member}"
1454     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1455         enable_sanitized "${struct}_${member}"
1456 }
1457
1458 check_builtin(){
1459     log check_builtin "$@"
1460     name=$1
1461     headers=$2
1462     builtin=$3
1463     shift 3
1464     disable "$name"
1465     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1466 }
1467
1468 check_compile_assert(){
1469     log check_compile_assert "$@"
1470     name=$1
1471     headers=$2
1472     condition=$3
1473     shift 3
1474     disable "$name"
1475     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1476 }
1477
1478 check_cc(){
1479     log check_cc "$@"
1480     name=$1
1481     shift
1482     disable "$name"
1483     test_code cc "$@" && enable "$name"
1484 }
1485
1486 require(){
1487     log require "$@"
1488     name_version="$1"
1489     name="${1%% *}"
1490     shift
1491     check_lib $name "$@" || die "ERROR: $name_version not found"
1492 }
1493
1494 require_cc(){
1495     log require_cc "$@"
1496     name="$1"
1497     check_cc "$@" || die "ERROR: $name failed"
1498 }
1499
1500 require_cpp(){
1501     name="$1"
1502     headers="$2"
1503     classes="$3"
1504     shift 3
1505     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1506 }
1507
1508 require_headers(){
1509     log require_headers "$@"
1510     headers="$1"
1511     check_headers "$@" || die "ERROR: $headers not found"
1512 }
1513
1514 require_cpp_condition(){
1515     log require_cpp_condition "$@"
1516     condition="$3"
1517     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1518 }
1519
1520 require_pkg_config(){
1521     log require_pkg_config "$@"
1522     pkg_version="$2"
1523     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1524 }
1525
1526 test_host_cc(){
1527     log test_host_cc "$@"
1528     cat > $TMPC
1529     log_file $TMPC
1530     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1531 }
1532
1533 test_host_cpp(){
1534     log test_host_cpp "$@"
1535     cat > $TMPC
1536     log_file $TMPC
1537     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1538 }
1539
1540 check_host_cppflags(){
1541     log check_host_cppflags "$@"
1542     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1543 #include <stdlib.h>
1544 EOF
1545 }
1546
1547 check_host_cflags(){
1548     log check_host_cflags "$@"
1549     set -- $($host_cflags_filter "$@")
1550     test_host_cc "$@" <<EOF && append host_cflags "$@"
1551 int x;
1552 EOF
1553 }
1554
1555 test_host_cpp_condition(){
1556     log test_host_cpp_condition "$@"
1557     header=$1
1558     condition=$2
1559     shift 2
1560     test_host_cpp "$@" <<EOF
1561 #include <$header>
1562 #if !($condition)
1563 #error "unsatisfied condition: $condition"
1564 #endif
1565 EOF
1566 }
1567
1568 check_host_cpp_condition(){
1569     log check_host_cpp_condition "$@"
1570     name=$1
1571     shift 1
1572     disable $name
1573     test_host_cpp_condition "$@" && enable $name
1574 }
1575
1576 cp_if_changed(){
1577     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1578     mkdir -p "$(dirname $2)"
1579     cp -f "$1" "$2"
1580 }
1581
1582 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1583 # system-dependent things.
1584
1585 AVCODEC_COMPONENTS="
1586     bsfs
1587     decoders
1588     encoders
1589     hwaccels
1590     parsers
1591 "
1592
1593 AVDEVICE_COMPONENTS="
1594     indevs
1595     outdevs
1596 "
1597
1598 AVFILTER_COMPONENTS="
1599     filters
1600 "
1601
1602 AVFORMAT_COMPONENTS="
1603     demuxers
1604     muxers
1605     protocols
1606 "
1607
1608 COMPONENT_LIST="
1609     $AVCODEC_COMPONENTS
1610     $AVDEVICE_COMPONENTS
1611     $AVFILTER_COMPONENTS
1612     $AVFORMAT_COMPONENTS
1613 "
1614
1615 EXAMPLE_LIST="
1616     avio_dir_cmd_example
1617     avio_reading_example
1618     decode_audio_example
1619     decode_video_example
1620     demuxing_decoding_example
1621     encode_audio_example
1622     encode_video_example
1623     extract_mvs_example
1624     filter_audio_example
1625     filtering_audio_example
1626     filtering_video_example
1627     http_multiclient_example
1628     hw_decode_example
1629     metadata_example
1630     muxing_example
1631     qsvdec_example
1632     remuxing_example
1633     resampling_audio_example
1634     scaling_video_example
1635     transcode_aac_example
1636     transcoding_example
1637     vaapi_encode_example
1638     vaapi_transcode_example
1639 "
1640
1641 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1642     alsa
1643     appkit
1644     avfoundation
1645     bzlib
1646     coreimage
1647     iconv
1648     libxcb
1649     libxcb_shm
1650     libxcb_shape
1651     libxcb_xfixes
1652     lzma
1653     schannel
1654     sdl2
1655     securetransport
1656     sndio
1657     xlib
1658     zlib
1659 "
1660
1661 EXTERNAL_LIBRARY_GPL_LIST="
1662     avisynth
1663     frei0r
1664     libcdio
1665     libdavs2
1666     librubberband
1667     libvidstab
1668     libx264
1669     libx265
1670     libxavs
1671     libxavs2
1672     libxvid
1673 "
1674
1675 EXTERNAL_LIBRARY_NONFREE_LIST="
1676     decklink
1677     libndi_newtek
1678     libfdk_aac
1679     openssl
1680     libtls
1681 "
1682
1683 EXTERNAL_LIBRARY_VERSION3_LIST="
1684     gmp
1685     liblensfun
1686     libopencore_amrnb
1687     libopencore_amrwb
1688     libvmaf
1689     libvo_amrwbenc
1690     mbedtls
1691     rkmpp
1692 "
1693
1694 EXTERNAL_LIBRARY_GPLV3_LIST="
1695     libsmbclient
1696 "
1697
1698 EXTERNAL_LIBRARY_LIST="
1699     $EXTERNAL_LIBRARY_GPL_LIST
1700     $EXTERNAL_LIBRARY_NONFREE_LIST
1701     $EXTERNAL_LIBRARY_VERSION3_LIST
1702     $EXTERNAL_LIBRARY_GPLV3_LIST
1703     chromaprint
1704     gcrypt
1705     gnutls
1706     jni
1707     ladspa
1708     libaom
1709     libass
1710     libbluray
1711     libbs2b
1712     libcaca
1713     libcelt
1714     libcodec2
1715     libdc1394
1716     libdrm
1717     libflite
1718     libfontconfig
1719     libfreetype
1720     libfribidi
1721     libgme
1722     libgsm
1723     libiec61883
1724     libilbc
1725     libjack
1726     libklvanc
1727     libkvazaar
1728     libmodplug
1729     libmp3lame
1730     libmysofa
1731     libopencv
1732     libopenh264
1733     libopenjpeg
1734     libopenmpt
1735     libopus
1736     libpulse
1737     librsvg
1738     librtmp
1739     libshine
1740     libsmbclient
1741     libsnappy
1742     libsoxr
1743     libspeex
1744     libsrt
1745     libssh
1746     libtensorflow
1747     libtesseract
1748     libtheora
1749     libtwolame
1750     libv4l2
1751     libvorbis
1752     libvpx
1753     libwavpack
1754     libwebp
1755     libxml2
1756     libzimg
1757     libzmq
1758     libzvbi
1759     lv2
1760     mediacodec
1761     openal
1762     opengl
1763     vapoursynth
1764 "
1765
1766 HWACCEL_AUTODETECT_LIBRARY_LIST="
1767     amf
1768     audiotoolbox
1769     crystalhd
1770     cuda
1771     cuvid
1772     d3d11va
1773     dxva2
1774     ffnvcodec
1775     nvdec
1776     nvenc
1777     vaapi
1778     vdpau
1779     videotoolbox
1780     v4l2_m2m
1781     xvmc
1782 "
1783
1784 # catchall list of things that require external libs to link
1785 EXTRALIBS_LIST="
1786     cpu_init
1787     cws2fws
1788 "
1789
1790 HWACCEL_LIBRARY_NONFREE_LIST="
1791     cuda_sdk
1792     libnpp
1793 "
1794
1795 HWACCEL_LIBRARY_LIST="
1796     $HWACCEL_LIBRARY_NONFREE_LIST
1797     libmfx
1798     mmal
1799     omx
1800     opencl
1801 "
1802
1803 DOCUMENT_LIST="
1804     doc
1805     htmlpages
1806     manpages
1807     podpages
1808     txtpages
1809 "
1810
1811 FEATURE_LIST="
1812     ftrapv
1813     gray
1814     hardcoded_tables
1815     omx_rpi
1816     runtime_cpudetect
1817     safe_bitstream_reader
1818     shared
1819     small
1820     static
1821     swscale_alpha
1822 "
1823
1824 # this list should be kept in linking order
1825 LIBRARY_LIST="
1826     avdevice
1827     avfilter
1828     swscale
1829     postproc
1830     avformat
1831     avcodec
1832     swresample
1833     avresample
1834     avutil
1835 "
1836
1837 LICENSE_LIST="
1838     gpl
1839     nonfree
1840     version3
1841 "
1842
1843 PROGRAM_LIST="
1844     ffplay
1845     ffprobe
1846     ffmpeg
1847 "
1848
1849 SUBSYSTEM_LIST="
1850     dct
1851     dwt
1852     error_resilience
1853     faan
1854     fast_unaligned
1855     fft
1856     lsp
1857     lzo
1858     mdct
1859     pixelutils
1860     network
1861     rdft
1862 "
1863
1864 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1865 CONFIG_LIST="
1866     $DOCUMENT_LIST
1867     $EXAMPLE_LIST
1868     $EXTERNAL_LIBRARY_LIST
1869     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1870     $HWACCEL_LIBRARY_LIST
1871     $HWACCEL_AUTODETECT_LIBRARY_LIST
1872     $FEATURE_LIST
1873     $LICENSE_LIST
1874     $LIBRARY_LIST
1875     $PROGRAM_LIST
1876     $SUBSYSTEM_LIST
1877     autodetect
1878     fontconfig
1879     linux_perf
1880     memory_poisoning
1881     neon_clobber_test
1882     ossfuzz
1883     pic
1884     thumb
1885     valgrind_backtrace
1886     xmm_clobber_test
1887     $COMPONENT_LIST
1888 "
1889
1890 THREADS_LIST="
1891     pthreads
1892     os2threads
1893     w32threads
1894 "
1895
1896 ATOMICS_LIST="
1897     atomics_gcc
1898     atomics_suncc
1899     atomics_win32
1900 "
1901
1902 AUTODETECT_LIBS="
1903     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1904     $HWACCEL_AUTODETECT_LIBRARY_LIST
1905     $THREADS_LIST
1906 "
1907
1908 ARCH_LIST="
1909     aarch64
1910     alpha
1911     arm
1912     avr32
1913     avr32_ap
1914     avr32_uc
1915     bfin
1916     ia64
1917     m68k
1918     mips
1919     mips64
1920     parisc
1921     ppc
1922     ppc64
1923     s390
1924     sh4
1925     sparc
1926     sparc64
1927     tilegx
1928     tilepro
1929     tomi
1930     x86
1931     x86_32
1932     x86_64
1933 "
1934
1935 ARCH_EXT_LIST_ARM="
1936     armv5te
1937     armv6
1938     armv6t2
1939     armv8
1940     neon
1941     vfp
1942     vfpv3
1943     setend
1944 "
1945
1946 ARCH_EXT_LIST_MIPS="
1947     mipsfpu
1948     mips32r2
1949     mips32r5
1950     mips64r2
1951     mips32r6
1952     mips64r6
1953     mipsdsp
1954     mipsdspr2
1955     msa
1956 "
1957
1958 ARCH_EXT_LIST_LOONGSON="
1959     loongson2
1960     loongson3
1961     mmi
1962 "
1963
1964 ARCH_EXT_LIST_X86_SIMD="
1965     aesni
1966     amd3dnow
1967     amd3dnowext
1968     avx
1969     avx2
1970     avx512
1971     fma3
1972     fma4
1973     mmx
1974     mmxext
1975     sse
1976     sse2
1977     sse3
1978     sse4
1979     sse42
1980     ssse3
1981     xop
1982 "
1983
1984 ARCH_EXT_LIST_PPC="
1985     altivec
1986     dcbzl
1987     ldbrx
1988     power8
1989     ppc4xx
1990     vsx
1991 "
1992
1993 ARCH_EXT_LIST_X86="
1994     $ARCH_EXT_LIST_X86_SIMD
1995     cpunop
1996     i686
1997 "
1998
1999 ARCH_EXT_LIST="
2000     $ARCH_EXT_LIST_ARM
2001     $ARCH_EXT_LIST_PPC
2002     $ARCH_EXT_LIST_X86
2003     $ARCH_EXT_LIST_MIPS
2004     $ARCH_EXT_LIST_LOONGSON
2005 "
2006
2007 ARCH_FEATURES="
2008     aligned_stack
2009     fast_64bit
2010     fast_clz
2011     fast_cmov
2012     local_aligned
2013     simd_align_16
2014     simd_align_32
2015     simd_align_64
2016 "
2017
2018 BUILTIN_LIST="
2019     atomic_cas_ptr
2020     machine_rw_barrier
2021     MemoryBarrier
2022     mm_empty
2023     rdtsc
2024     sem_timedwait
2025     sync_val_compare_and_swap
2026 "
2027 HAVE_LIST_CMDLINE="
2028     inline_asm
2029     symver
2030     x86asm
2031 "
2032
2033 HAVE_LIST_PUB="
2034     bigendian
2035     fast_unaligned
2036 "
2037
2038 HEADERS_LIST="
2039     arpa_inet_h
2040     asm_types_h
2041     cdio_paranoia_h
2042     cdio_paranoia_paranoia_h
2043     cuda_h
2044     dispatch_dispatch_h
2045     dev_bktr_ioctl_bt848_h
2046     dev_bktr_ioctl_meteor_h
2047     dev_ic_bt8xx_h
2048     dev_video_bktr_ioctl_bt848_h
2049     dev_video_meteor_ioctl_meteor_h
2050     direct_h
2051     dirent_h
2052     dxgidebug_h
2053     dxva_h
2054     ES2_gl_h
2055     gsm_h
2056     io_h
2057     linux_perf_event_h
2058     machine_ioctl_bt848_h
2059     machine_ioctl_meteor_h
2060     malloc_h
2061     opencv2_core_core_c_h
2062     OpenGL_gl3_h
2063     poll_h
2064     sys_param_h
2065     sys_resource_h
2066     sys_select_h
2067     sys_soundcard_h
2068     sys_time_h
2069     sys_un_h
2070     sys_videoio_h
2071     termios_h
2072     udplite_h
2073     unistd_h
2074     valgrind_valgrind_h
2075     windows_h
2076     winsock2_h
2077 "
2078
2079 INTRINSICS_LIST="
2080     intrinsics_neon
2081 "
2082
2083 COMPLEX_FUNCS="
2084     cabs
2085     cexp
2086 "
2087
2088 MATH_FUNCS="
2089     atanf
2090     atan2f
2091     cbrt
2092     cbrtf
2093     copysign
2094     cosf
2095     erf
2096     exp2
2097     exp2f
2098     expf
2099     hypot
2100     isfinite
2101     isinf
2102     isnan
2103     ldexpf
2104     llrint
2105     llrintf
2106     log2
2107     log2f
2108     log10f
2109     lrint
2110     lrintf
2111     powf
2112     rint
2113     round
2114     roundf
2115     sinf
2116     trunc
2117     truncf
2118 "
2119
2120 SYSTEM_FEATURES="
2121     dos_paths
2122     libc_msvcrt
2123     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2124     section_data_rel_ro
2125     threads
2126     uwp
2127     winrt
2128 "
2129
2130 SYSTEM_FUNCS="
2131     access
2132     aligned_malloc
2133     arc4random
2134     clock_gettime
2135     closesocket
2136     CommandLineToArgvW
2137     fcntl
2138     getaddrinfo
2139     gethrtime
2140     getopt
2141     GetProcessAffinityMask
2142     GetProcessMemoryInfo
2143     GetProcessTimes
2144     getrusage
2145     GetSystemTimeAsFileTime
2146     gettimeofday
2147     glob
2148     glXGetProcAddress
2149     gmtime_r
2150     inet_aton
2151     isatty
2152     kbhit
2153     localtime_r
2154     lstat
2155     lzo1x_999_compress
2156     mach_absolute_time
2157     MapViewOfFile
2158     memalign
2159     mkstemp
2160     mmap
2161     mprotect
2162     nanosleep
2163     PeekNamedPipe
2164     posix_memalign
2165     pthread_cancel
2166     sched_getaffinity
2167     SecItemImport
2168     SetConsoleTextAttribute
2169     SetConsoleCtrlHandler
2170     setmode
2171     setrlimit
2172     Sleep
2173     strerror_r
2174     sysconf
2175     sysctl
2176     usleep
2177     UTGetOSTypeFromString
2178     VirtualAlloc
2179     wglGetProcAddress
2180 "
2181
2182 SYSTEM_LIBRARIES="
2183     bcrypt
2184     vaapi_drm
2185     vaapi_x11
2186     vdpau_x11
2187 "
2188
2189 TOOLCHAIN_FEATURES="
2190     as_arch_directive
2191     as_dn_directive
2192     as_fpu_directive
2193     as_func
2194     as_object_arch
2195     asm_mod_q
2196     blocks_extension
2197     ebp_available
2198     ebx_available
2199     gnu_as
2200     gnu_windres
2201     ibm_asm
2202     inline_asm_direct_symbol_refs
2203     inline_asm_labels
2204     inline_asm_nonlocal_labels
2205     pragma_deprecated
2206     rsync_contimeout
2207     symver_asm_label
2208     symver_gnu_asm
2209     vfp_args
2210     xform_asm
2211     xmm_clobbers
2212 "
2213
2214 TYPES_LIST="
2215     kCMVideoCodecType_HEVC
2216     socklen_t
2217     struct_addrinfo
2218     struct_group_source_req
2219     struct_ip_mreq_source
2220     struct_ipv6_mreq
2221     struct_msghdr_msg_flags
2222     struct_pollfd
2223     struct_rusage_ru_maxrss
2224     struct_sctp_event_subscribe
2225     struct_sockaddr_in6
2226     struct_sockaddr_sa_len
2227     struct_sockaddr_storage
2228     struct_stat_st_mtim_tv_nsec
2229     struct_v4l2_frmivalenum_discrete
2230 "
2231
2232 HAVE_LIST="
2233     $ARCH_EXT_LIST
2234     $(add_suffix _external $ARCH_EXT_LIST)
2235     $(add_suffix _inline   $ARCH_EXT_LIST)
2236     $ARCH_FEATURES
2237     $BUILTIN_LIST
2238     $COMPLEX_FUNCS
2239     $HAVE_LIST_CMDLINE
2240     $HAVE_LIST_PUB
2241     $HEADERS_LIST
2242     $INTRINSICS_LIST
2243     $MATH_FUNCS
2244     $SYSTEM_FEATURES
2245     $SYSTEM_FUNCS
2246     $SYSTEM_LIBRARIES
2247     $THREADS_LIST
2248     $TOOLCHAIN_FEATURES
2249     $TYPES_LIST
2250     makeinfo
2251     makeinfo_html
2252     opencl_d3d11
2253     opencl_drm_arm
2254     opencl_drm_beignet
2255     opencl_dxva2
2256     opencl_vaapi_beignet
2257     opencl_vaapi_intel_media
2258     perl
2259     pod2man
2260     texi2html
2261 "
2262
2263 # options emitted with CONFIG_ prefix but not available on the command line
2264 CONFIG_EXTRA="
2265     aandcttables
2266     ac3dsp
2267     adts_header
2268     audio_frame_queue
2269     audiodsp
2270     blockdsp
2271     bswapdsp
2272     cabac
2273     cbs
2274     cbs_h264
2275     cbs_h265
2276     cbs_jpeg
2277     cbs_mpeg2
2278     cbs_vp9
2279     dirac_parse
2280     dnn
2281     dvprofile
2282     exif
2283     faandct
2284     faanidct
2285     fdctdsp
2286     flacdsp
2287     fmtconvert
2288     frame_thread_encoder
2289     g722dsp
2290     golomb
2291     gplv3
2292     h263dsp
2293     h264chroma
2294     h264dsp
2295     h264parse
2296     h264pred
2297     h264qpel
2298     hevcparse
2299     hpeldsp
2300     huffman
2301     huffyuvdsp
2302     huffyuvencdsp
2303     idctdsp
2304     iirfilter
2305     mdct15
2306     intrax8
2307     iso_media
2308     ividsp
2309     jpegtables
2310     lgplv3
2311     libx262
2312     llauddsp
2313     llviddsp
2314     llvidencdsp
2315     lpc
2316     lzf
2317     me_cmp
2318     mpeg_er
2319     mpegaudio
2320     mpegaudiodsp
2321     mpegaudioheader
2322     mpegvideo
2323     mpegvideoenc
2324     mss34dsp
2325     pixblockdsp
2326     qpeldsp
2327     qsv
2328     qsvdec
2329     qsvenc
2330     qsvvpp
2331     rangecoder
2332     riffdec
2333     riffenc
2334     rtpdec
2335     rtpenc_chain
2336     rv34dsp
2337     sinewin
2338     snappy
2339     srtp
2340     startcode
2341     texturedsp
2342     texturedspenc
2343     tpeldsp
2344     vaapi_1
2345     vaapi_encode
2346     vc1dsp
2347     videodsp
2348     vp3dsp
2349     vp56dsp
2350     vp8dsp
2351     wma_freqs
2352     wmv2dsp
2353 "
2354
2355 CMDLINE_SELECT="
2356     $ARCH_EXT_LIST
2357     $CONFIG_LIST
2358     $HAVE_LIST_CMDLINE
2359     $THREADS_LIST
2360     asm
2361     cross_compile
2362     debug
2363     extra_warnings
2364     logging
2365     lto
2366     optimizations
2367     rpath
2368     stripping
2369 "
2370
2371 PATHS_LIST="
2372     bindir
2373     datadir
2374     docdir
2375     incdir
2376     libdir
2377     mandir
2378     pkgconfigdir
2379     prefix
2380     shlibdir
2381     install_name_dir
2382 "
2383
2384 CMDLINE_SET="
2385     $PATHS_LIST
2386     ar
2387     arch
2388     as
2389     assert_level
2390     build_suffix
2391     cc
2392     objcc
2393     cpu
2394     cross_prefix
2395     custom_allocator
2396     cxx
2397     dep_cc
2398     doxygen
2399     env
2400     extra_version
2401     gas
2402     host_cc
2403     host_cflags
2404     host_extralibs
2405     host_ld
2406     host_ldflags
2407     host_os
2408     ignore_tests
2409     install
2410     ld
2411     ln_s
2412     logfile
2413     malloc_prefix
2414     nm
2415     optflags
2416     nvcc
2417     nvccflags
2418     pkg_config
2419     pkg_config_flags
2420     progs_suffix
2421     random_seed
2422     ranlib
2423     samples
2424     strip
2425     sws_max_filter_size
2426     sysinclude
2427     sysroot
2428     target_exec
2429     target_os
2430     target_path
2431     target_samples
2432     tempprefix
2433     toolchain
2434     valgrind
2435     x86asmexe
2436 "
2437
2438 CMDLINE_APPEND="
2439     extra_cflags
2440     extra_cxxflags
2441     extra_objcflags
2442     host_cppflags
2443 "
2444
2445 # code dependency declarations
2446
2447 # architecture extensions
2448
2449 armv5te_deps="arm"
2450 armv6_deps="arm"
2451 armv6t2_deps="arm"
2452 armv8_deps="aarch64"
2453 neon_deps_any="aarch64 arm"
2454 intrinsics_neon_deps="neon"
2455 vfp_deps_any="aarch64 arm"
2456 vfpv3_deps="vfp"
2457 setend_deps="arm"
2458
2459 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2460
2461 altivec_deps="ppc"
2462 dcbzl_deps="ppc"
2463 ldbrx_deps="ppc"
2464 ppc4xx_deps="ppc"
2465 vsx_deps="altivec"
2466 power8_deps="vsx"
2467
2468 loongson2_deps="mips"
2469 loongson3_deps="mips"
2470 mips32r2_deps="mips"
2471 mips32r5_deps="mips"
2472 mips32r6_deps="mips"
2473 mips64r2_deps="mips"
2474 mips64r6_deps="mips"
2475 mipsfpu_deps="mips"
2476 mipsdsp_deps="mips"
2477 mipsdspr2_deps="mips"
2478 mmi_deps="mips"
2479 msa_deps="mipsfpu"
2480
2481 cpunop_deps="i686"
2482 x86_64_select="i686"
2483 x86_64_suggest="fast_cmov"
2484
2485 amd3dnow_deps="mmx"
2486 amd3dnowext_deps="amd3dnow"
2487 i686_deps="x86"
2488 mmx_deps="x86"
2489 mmxext_deps="mmx"
2490 sse_deps="mmxext"
2491 sse2_deps="sse"
2492 sse3_deps="sse2"
2493 ssse3_deps="sse3"
2494 sse4_deps="ssse3"
2495 sse42_deps="sse4"
2496 aesni_deps="sse42"
2497 avx_deps="sse42"
2498 xop_deps="avx"
2499 fma3_deps="avx"
2500 fma4_deps="avx"
2501 avx2_deps="avx"
2502 avx512_deps="avx2"
2503
2504 mmx_external_deps="x86asm"
2505 mmx_inline_deps="inline_asm x86"
2506 mmx_suggest="mmx_external mmx_inline"
2507
2508 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2509     eval dep=\$${ext}_deps
2510     eval ${ext}_external_deps='"${dep}_external"'
2511     eval ${ext}_inline_deps='"${dep}_inline"'
2512     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2513 done
2514
2515 aligned_stack_if_any="aarch64 ppc x86"
2516 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2517 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2518 fast_unaligned_if_any="aarch64 ppc x86"
2519 simd_align_16_if_any="altivec neon sse"
2520 simd_align_32_if_any="avx"
2521 simd_align_64_if_any="avx512"
2522
2523 # system capabilities
2524 linux_perf_deps="linux_perf_event_h"
2525 symver_if_any="symver_asm_label symver_gnu_asm"
2526 valgrind_backtrace_conflict="optimizations"
2527 valgrind_backtrace_deps="valgrind_valgrind_h"
2528
2529 # threading support
2530 atomics_gcc_if="sync_val_compare_and_swap"
2531 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2532 atomics_win32_if="MemoryBarrier"
2533 atomics_native_if_any="$ATOMICS_LIST"
2534 w32threads_deps="atomics_native"
2535 threads_if_any="$THREADS_LIST"
2536
2537 # subsystems
2538 cbs_h264_select="cbs golomb"
2539 cbs_h265_select="cbs golomb"
2540 cbs_jpeg_select="cbs"
2541 cbs_mpeg2_select="cbs"
2542 cbs_vp9_select="cbs"
2543 dct_select="rdft"
2544 dirac_parse_select="golomb"
2545 dnn_suggest="libtensorflow"
2546 error_resilience_select="me_cmp"
2547 faandct_deps="faan"
2548 faandct_select="fdctdsp"
2549 faanidct_deps="faan"
2550 faanidct_select="idctdsp"
2551 h264dsp_select="startcode"
2552 hevcparse_select="golomb"
2553 frame_thread_encoder_deps="encoders threads"
2554 intrax8_select="blockdsp idctdsp"
2555 mdct_select="fft"
2556 mdct15_select="fft"
2557 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2558 mpeg_er_select="error_resilience"
2559 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2560 mpegaudiodsp_select="dct"
2561 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2562 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2563 vc1dsp_select="h264chroma qpeldsp startcode"
2564 rdft_select="fft"
2565
2566 # decoders / encoders
2567 aac_decoder_select="adts_header mdct15 mdct sinewin"
2568 aac_fixed_decoder_select="adts_header mdct sinewin"
2569 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2570 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2571 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2572 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2573 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2574 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2575 adpcm_g722_decoder_select="g722dsp"
2576 adpcm_g722_encoder_select="g722dsp"
2577 aic_decoder_select="golomb idctdsp"
2578 alac_encoder_select="lpc"
2579 als_decoder_select="bswapdsp"
2580 amrnb_decoder_select="lsp"
2581 amrwb_decoder_select="lsp"
2582 amv_decoder_select="sp5x_decoder exif"
2583 amv_encoder_select="jpegtables mpegvideoenc"
2584 ape_decoder_select="bswapdsp llauddsp"
2585 apng_decoder_deps="zlib"
2586 apng_encoder_deps="zlib"
2587 apng_encoder_select="llvidencdsp"
2588 aptx_decoder_select="audio_frame_queue"
2589 aptx_encoder_select="audio_frame_queue"
2590 aptx_hd_decoder_select="audio_frame_queue"
2591 aptx_hd_encoder_select="audio_frame_queue"
2592 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2593 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2594 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2595 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2596 atrac1_decoder_select="mdct sinewin"
2597 atrac3_decoder_select="mdct"
2598 atrac3p_decoder_select="mdct sinewin"
2599 atrac9_decoder_select="mdct"
2600 avrn_decoder_select="exif jpegtables"
2601 bink_decoder_select="blockdsp hpeldsp"
2602 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2603 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2604 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2605 clearvideo_decoder_select="idctdsp"
2606 cllc_decoder_select="bswapdsp"
2607 comfortnoise_encoder_select="lpc"
2608 cook_decoder_select="audiodsp mdct sinewin"
2609 cscd_decoder_select="lzo"
2610 cscd_decoder_suggest="zlib"
2611 dca_decoder_select="mdct"
2612 dds_decoder_select="texturedsp"
2613 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2614 dnxhd_decoder_select="blockdsp idctdsp"
2615 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2616 dolby_e_decoder_select="mdct"
2617 dvvideo_decoder_select="dvprofile idctdsp"
2618 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2619 dxa_decoder_deps="zlib"
2620 dxv_decoder_select="lzf texturedsp"
2621 eac3_decoder_select="ac3_decoder"
2622 eac3_encoder_select="ac3_encoder"
2623 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2624 eatgq_decoder_select="aandcttables"
2625 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2626 exr_decoder_deps="zlib"
2627 ffv1_decoder_select="rangecoder"
2628 ffv1_encoder_select="rangecoder"
2629 ffvhuff_decoder_select="huffyuv_decoder"
2630 ffvhuff_encoder_select="huffyuv_encoder"
2631 fic_decoder_select="golomb"
2632 flac_decoder_select="flacdsp"
2633 flac_encoder_select="bswapdsp flacdsp lpc"
2634 flashsv2_decoder_deps="zlib"
2635 flashsv2_encoder_deps="zlib"
2636 flashsv_decoder_deps="zlib"
2637 flashsv_encoder_deps="zlib"
2638 flv_decoder_select="h263_decoder"
2639 flv_encoder_select="h263_encoder"
2640 fourxm_decoder_select="blockdsp bswapdsp"
2641 fraps_decoder_select="bswapdsp huffman"
2642 g2m_decoder_deps="zlib"
2643 g2m_decoder_select="blockdsp idctdsp jpegtables"
2644 g729_decoder_select="audiodsp"
2645 h261_decoder_select="mpegvideo"
2646 h261_encoder_select="mpegvideoenc"
2647 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2648 h263_encoder_select="h263dsp mpegvideoenc"
2649 h263i_decoder_select="h263_decoder"
2650 h263p_decoder_select="h263_decoder"
2651 h263p_encoder_select="h263_encoder"
2652 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2653 h264_decoder_suggest="error_resilience"
2654 hap_decoder_select="snappy texturedsp"
2655 hap_encoder_deps="libsnappy"
2656 hap_encoder_select="texturedspenc"
2657 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2658 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2659 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2660 iac_decoder_select="imc_decoder"
2661 imc_decoder_select="bswapdsp fft mdct sinewin"
2662 indeo3_decoder_select="hpeldsp"
2663 indeo4_decoder_select="ividsp"
2664 indeo5_decoder_select="ividsp"
2665 interplay_video_decoder_select="hpeldsp"
2666 jpegls_decoder_select="mjpeg_decoder"
2667 jv_decoder_select="blockdsp"
2668 lagarith_decoder_select="llviddsp"
2669 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2670 magicyuv_decoder_select="llviddsp"
2671 magicyuv_encoder_select="llvidencdsp"
2672 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2673 metasound_decoder_select="lsp mdct sinewin"
2674 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2675 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2676 mjpeg_encoder_select="jpegtables mpegvideoenc"
2677 mjpegb_decoder_select="mjpeg_decoder"
2678 mlp_decoder_select="mlp_parser"
2679 mlp_encoder_select="lpc"
2680 motionpixels_decoder_select="bswapdsp"
2681 mp1_decoder_select="mpegaudio"
2682 mp1float_decoder_select="mpegaudio"
2683 mp2_decoder_select="mpegaudio"
2684 mp2float_decoder_select="mpegaudio"
2685 mp3_decoder_select="mpegaudio"
2686 mp3adu_decoder_select="mpegaudio"
2687 mp3adufloat_decoder_select="mpegaudio"
2688 mp3float_decoder_select="mpegaudio"
2689 mp3on4_decoder_select="mpegaudio"
2690 mp3on4float_decoder_select="mpegaudio"
2691 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2692 mpc8_decoder_select="mpegaudiodsp"
2693 mpegvideo_decoder_select="mpegvideo"
2694 mpeg1video_decoder_select="mpegvideo"
2695 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2696 mpeg2video_decoder_select="mpegvideo"
2697 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2698 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2699 mpeg4_encoder_select="h263_encoder"
2700 msa1_decoder_select="mss34dsp"
2701 mscc_decoder_deps="zlib"
2702 msmpeg4v1_decoder_select="h263_decoder"
2703 msmpeg4v2_decoder_select="h263_decoder"
2704 msmpeg4v2_encoder_select="h263_encoder"
2705 msmpeg4v3_decoder_select="h263_decoder"
2706 msmpeg4v3_encoder_select="h263_encoder"
2707 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2708 mts2_decoder_select="mss34dsp"
2709 mwsc_decoder_deps="zlib"
2710 mxpeg_decoder_select="mjpeg_decoder"
2711 nellymoser_decoder_select="mdct sinewin"
2712 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2713 nuv_decoder_select="idctdsp lzo"
2714 on2avc_decoder_select="mdct"
2715 opus_decoder_deps="swresample"
2716 opus_decoder_select="mdct15"
2717 opus_encoder_select="audio_frame_queue mdct15"
2718 png_decoder_deps="zlib"
2719 png_encoder_deps="zlib"
2720 png_encoder_select="llvidencdsp"
2721 prores_decoder_select="blockdsp idctdsp"
2722 prores_encoder_select="fdctdsp"
2723 qcelp_decoder_select="lsp"
2724 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2725 ra_144_decoder_select="audiodsp"
2726 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2727 ralf_decoder_select="golomb"
2728 rasc_decoder_deps="zlib"
2729 rawvideo_decoder_select="bswapdsp"
2730 rscc_decoder_deps="zlib"
2731 rtjpeg_decoder_select="me_cmp"
2732 rv10_decoder_select="h263_decoder"
2733 rv10_encoder_select="h263_encoder"
2734 rv20_decoder_select="h263_decoder"
2735 rv20_encoder_select="h263_encoder"
2736 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2737 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2738 screenpresso_decoder_deps="zlib"
2739 shorten_decoder_select="bswapdsp"
2740 sipr_decoder_select="lsp"
2741 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2742 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2743 sonic_decoder_select="golomb rangecoder"
2744 sonic_encoder_select="golomb rangecoder"
2745 sonic_ls_encoder_select="golomb rangecoder"
2746 sp5x_decoder_select="mjpeg_decoder"
2747 speedhq_decoder_select="mpegvideo"
2748 srgc_decoder_deps="zlib"
2749 svq1_decoder_select="hpeldsp"
2750 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2751 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2752 svq3_decoder_suggest="zlib"
2753 tak_decoder_select="audiodsp"
2754 tdsc_decoder_deps="zlib"
2755 tdsc_decoder_select="mjpeg_decoder"
2756 theora_decoder_select="vp3_decoder"
2757 thp_decoder_select="mjpeg_decoder"
2758 tiff_decoder_suggest="zlib lzma"
2759 tiff_encoder_suggest="zlib"
2760 truehd_decoder_select="mlp_parser"
2761 truehd_encoder_select="lpc"
2762 truemotion2_decoder_select="bswapdsp"
2763 truespeech_decoder_select="bswapdsp"
2764 tscc_decoder_deps="zlib"
2765 twinvq_decoder_select="mdct lsp sinewin"
2766 txd_decoder_select="texturedsp"
2767 utvideo_decoder_select="bswapdsp llviddsp"
2768 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2769 vble_decoder_select="llviddsp"
2770 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2771 vc1image_decoder_select="vc1_decoder"
2772 vorbis_decoder_select="mdct"
2773 vorbis_encoder_select="audio_frame_queue mdct"
2774 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2775 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2776 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2777 vp6a_decoder_select="vp6_decoder"
2778 vp6f_decoder_select="vp6_decoder"
2779 vp7_decoder_select="h264pred videodsp vp8dsp"
2780 vp8_decoder_select="h264pred videodsp vp8dsp"
2781 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2782 wcmv_decoder_deps="zlib"
2783 webp_decoder_select="vp8_decoder exif"
2784 wmalossless_decoder_select="llauddsp"
2785 wmapro_decoder_select="mdct sinewin wma_freqs"
2786 wmav1_decoder_select="mdct sinewin wma_freqs"
2787 wmav1_encoder_select="mdct sinewin wma_freqs"
2788 wmav2_decoder_select="mdct sinewin wma_freqs"
2789 wmav2_encoder_select="mdct sinewin wma_freqs"
2790 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2791 wmv1_decoder_select="h263_decoder"
2792 wmv1_encoder_select="h263_encoder"
2793 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2794 wmv2_encoder_select="h263_encoder wmv2dsp"
2795 wmv3_decoder_select="vc1_decoder"
2796 wmv3image_decoder_select="wmv3_decoder"
2797 xma1_decoder_select="wmapro_decoder"
2798 xma2_decoder_select="wmapro_decoder"
2799 zerocodec_decoder_deps="zlib"
2800 zlib_decoder_deps="zlib"
2801 zlib_encoder_deps="zlib"
2802 zmbv_decoder_deps="zlib"
2803 zmbv_encoder_deps="zlib"
2804
2805 # hardware accelerators
2806 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2807 cuda_deps="ffnvcodec"
2808 cuvid_deps="ffnvcodec"
2809 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2810 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2811 ffnvcodec_deps_any="libdl LoadLibrary"
2812 nvdec_deps="ffnvcodec"
2813 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2814 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2815 xvmc_deps="X11_extensions_XvMClib_h"
2816
2817 h263_vaapi_hwaccel_deps="vaapi"
2818 h263_vaapi_hwaccel_select="h263_decoder"
2819 h263_videotoolbox_hwaccel_deps="videotoolbox"
2820 h263_videotoolbox_hwaccel_select="h263_decoder"
2821 h264_d3d11va_hwaccel_deps="d3d11va"
2822 h264_d3d11va_hwaccel_select="h264_decoder"
2823 h264_d3d11va2_hwaccel_deps="d3d11va"
2824 h264_d3d11va2_hwaccel_select="h264_decoder"
2825 h264_dxva2_hwaccel_deps="dxva2"
2826 h264_dxva2_hwaccel_select="h264_decoder"
2827 h264_nvdec_hwaccel_deps="nvdec"
2828 h264_nvdec_hwaccel_select="h264_decoder"
2829 h264_vaapi_hwaccel_deps="vaapi"
2830 h264_vaapi_hwaccel_select="h264_decoder"
2831 h264_vdpau_hwaccel_deps="vdpau"
2832 h264_vdpau_hwaccel_select="h264_decoder"
2833 h264_videotoolbox_hwaccel_deps="videotoolbox"
2834 h264_videotoolbox_hwaccel_select="h264_decoder"
2835 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2836 hevc_d3d11va_hwaccel_select="hevc_decoder"
2837 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2838 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2839 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2840 hevc_dxva2_hwaccel_select="hevc_decoder"
2841 hevc_nvdec_hwaccel_deps="nvdec"
2842 hevc_nvdec_hwaccel_select="hevc_decoder"
2843 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2844 hevc_vaapi_hwaccel_select="hevc_decoder"
2845 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2846 hevc_vdpau_hwaccel_select="hevc_decoder"
2847 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2848 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2849 mjpeg_nvdec_hwaccel_deps="nvdec"
2850 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2851 mjpeg_vaapi_hwaccel_deps="vaapi"
2852 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2853 mpeg_xvmc_hwaccel_deps="xvmc"
2854 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2855 mpeg1_nvdec_hwaccel_deps="nvdec"
2856 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2857 mpeg1_vdpau_hwaccel_deps="vdpau"
2858 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2859 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2860 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2861 mpeg1_xvmc_hwaccel_deps="xvmc"
2862 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2863 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2864 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2865 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2866 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2867 mpeg2_dxva2_hwaccel_deps="dxva2"
2868 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2869 mpeg2_nvdec_hwaccel_deps="nvdec"
2870 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2871 mpeg2_vaapi_hwaccel_deps="vaapi"
2872 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2873 mpeg2_vdpau_hwaccel_deps="vdpau"
2874 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2875 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2876 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2877 mpeg2_xvmc_hwaccel_deps="xvmc"
2878 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2879 mpeg4_nvdec_hwaccel_deps="nvdec"
2880 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2881 mpeg4_vaapi_hwaccel_deps="vaapi"
2882 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2883 mpeg4_vdpau_hwaccel_deps="vdpau"
2884 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2885 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2886 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2887 vc1_d3d11va_hwaccel_deps="d3d11va"
2888 vc1_d3d11va_hwaccel_select="vc1_decoder"
2889 vc1_d3d11va2_hwaccel_deps="d3d11va"
2890 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2891 vc1_dxva2_hwaccel_deps="dxva2"
2892 vc1_dxva2_hwaccel_select="vc1_decoder"
2893 vc1_nvdec_hwaccel_deps="nvdec"
2894 vc1_nvdec_hwaccel_select="vc1_decoder"
2895 vc1_vaapi_hwaccel_deps="vaapi"
2896 vc1_vaapi_hwaccel_select="vc1_decoder"
2897 vc1_vdpau_hwaccel_deps="vdpau"
2898 vc1_vdpau_hwaccel_select="vc1_decoder"
2899 vp8_nvdec_hwaccel_deps="nvdec"
2900 vp8_nvdec_hwaccel_select="vp8_decoder"
2901 vp8_vaapi_hwaccel_deps="vaapi"
2902 vp8_vaapi_hwaccel_select="vp8_decoder"
2903 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2904 vp9_d3d11va_hwaccel_select="vp9_decoder"
2905 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2906 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2907 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2908 vp9_dxva2_hwaccel_select="vp9_decoder"
2909 vp9_nvdec_hwaccel_deps="nvdec"
2910 vp9_nvdec_hwaccel_select="vp9_decoder"
2911 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2912 vp9_vaapi_hwaccel_select="vp9_decoder"
2913 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2914 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2915 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2916 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2917 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2918 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2919
2920 # hardware-accelerated codecs
2921 omx_deps="libdl pthreads"
2922 omx_rpi_select="omx"
2923 qsv_deps="libmfx"
2924 qsvdec_select="qsv"
2925 qsvenc_select="qsv"
2926 qsvvpp_select="qsv"
2927 vaapi_encode_deps="vaapi"
2928 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2929
2930 hwupload_cuda_filter_deps="ffnvcodec"
2931 scale_npp_filter_deps="ffnvcodec libnpp"
2932 scale_cuda_filter_deps="cuda_sdk"
2933 thumbnail_cuda_filter_deps="cuda_sdk"
2934 transpose_npp_filter_deps="ffnvcodec libnpp"
2935
2936 amf_deps_any="libdl LoadLibrary"
2937 nvenc_deps="ffnvcodec"
2938 nvenc_deps_any="libdl LoadLibrary"
2939 nvenc_encoder_deps="nvenc"
2940
2941 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2942 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2943 h264_amf_encoder_deps="amf"
2944 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2945 h264_cuvid_decoder_deps="cuvid"
2946 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2947 h264_mediacodec_decoder_deps="mediacodec"
2948 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2949 h264_mmal_decoder_deps="mmal"
2950 h264_nvenc_encoder_deps="nvenc"
2951 h264_omx_encoder_deps="omx"
2952 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2953 h264_qsv_encoder_select="qsvenc"
2954 h264_rkmpp_decoder_deps="rkmpp"
2955 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2956 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2957 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2958 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2959 hevc_amf_encoder_deps="amf"
2960 hevc_cuvid_decoder_deps="cuvid"
2961 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2962 hevc_mediacodec_decoder_deps="mediacodec"
2963 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2964 hevc_nvenc_encoder_deps="nvenc"
2965 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2966 hevc_qsv_encoder_select="hevcparse qsvenc"
2967 hevc_rkmpp_decoder_deps="rkmpp"
2968 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2969 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2970 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2971 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2972 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2973 mjpeg_cuvid_decoder_deps="cuvid"
2974 mjpeg_qsv_encoder_deps="libmfx"
2975 mjpeg_qsv_encoder_select="qsvenc"
2976 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2977 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
2978 mpeg1_cuvid_decoder_deps="cuvid"
2979 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2980 mpeg2_crystalhd_decoder_select="crystalhd"
2981 mpeg2_cuvid_decoder_deps="cuvid"
2982 mpeg2_mmal_decoder_deps="mmal"
2983 mpeg2_mediacodec_decoder_deps="mediacodec"
2984 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2985 mpeg2_qsv_encoder_select="qsvenc"
2986 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2987 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2988 mpeg4_crystalhd_decoder_select="crystalhd"
2989 mpeg4_cuvid_decoder_deps="cuvid"
2990 mpeg4_mediacodec_decoder_deps="mediacodec"
2991 mpeg4_mmal_decoder_deps="mmal"
2992 mpeg4_omx_encoder_deps="omx"
2993 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2994 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2995 msmpeg4_crystalhd_decoder_select="crystalhd"
2996 nvenc_h264_encoder_select="h264_nvenc_encoder"
2997 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2998 vc1_crystalhd_decoder_select="crystalhd"
2999 vc1_cuvid_decoder_deps="cuvid"
3000 vc1_mmal_decoder_deps="mmal"
3001 vc1_qsv_decoder_select="qsvdec vc1_parser"
3002 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3003 vp8_cuvid_decoder_deps="cuvid"
3004 vp8_mediacodec_decoder_deps="mediacodec"
3005 vp8_qsv_decoder_select="qsvdec vp8_parser"
3006 vp8_rkmpp_decoder_deps="rkmpp"
3007 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3008 vp8_vaapi_encoder_select="vaapi_encode"
3009 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3010 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3011 vp9_cuvid_decoder_deps="cuvid"
3012 vp9_mediacodec_decoder_deps="mediacodec"
3013 vp9_rkmpp_decoder_deps="rkmpp"
3014 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3015 vp9_vaapi_encoder_select="vaapi_encode"
3016 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3017 wmv3_crystalhd_decoder_select="crystalhd"
3018
3019 # parsers
3020 aac_parser_select="adts_header"
3021 h264_parser_select="golomb h264dsp h264parse"
3022 hevc_parser_select="hevcparse"
3023 mpegaudio_parser_select="mpegaudioheader"
3024 mpegvideo_parser_select="mpegvideo"
3025 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3026 vc1_parser_select="vc1dsp"
3027
3028 # bitstream_filters
3029 aac_adtstoasc_bsf_select="adts_header"
3030 eac3_core_bsf_select="ac3_parser"
3031 filter_units_bsf_select="cbs"
3032 h264_metadata_bsf_deps="const_nan"
3033 h264_metadata_bsf_select="cbs_h264"
3034 h264_redundant_pps_bsf_select="cbs_h264"
3035 hevc_metadata_bsf_select="cbs_h265"
3036 mjpeg2jpeg_bsf_select="jpegtables"
3037 mpeg2_metadata_bsf_select="cbs_mpeg2"
3038 trace_headers_bsf_select="cbs"
3039 vp9_metadata_bsf_select="cbs_vp9"
3040
3041 # external libraries
3042 aac_at_decoder_deps="audiotoolbox"
3043 aac_at_decoder_select="aac_adtstoasc_bsf"
3044 ac3_at_decoder_deps="audiotoolbox"
3045 ac3_at_decoder_select="ac3_parser"
3046 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3047 alac_at_decoder_deps="audiotoolbox"
3048 amr_nb_at_decoder_deps="audiotoolbox"
3049 avisynth_deps_any="libdl LoadLibrary"
3050 avisynth_demuxer_deps="avisynth"
3051 avisynth_demuxer_select="riffdec"
3052 eac3_at_decoder_deps="audiotoolbox"
3053 eac3_at_decoder_select="ac3_parser"
3054 gsm_ms_at_decoder_deps="audiotoolbox"
3055 ilbc_at_decoder_deps="audiotoolbox"
3056 mp1_at_decoder_deps="audiotoolbox"
3057 mp2_at_decoder_deps="audiotoolbox"
3058 mp3_at_decoder_deps="audiotoolbox"
3059 mp1_at_decoder_select="mpegaudioheader"
3060 mp2_at_decoder_select="mpegaudioheader"
3061 mp3_at_decoder_select="mpegaudioheader"
3062 pcm_alaw_at_decoder_deps="audiotoolbox"
3063 pcm_mulaw_at_decoder_deps="audiotoolbox"
3064 qdmc_at_decoder_deps="audiotoolbox"
3065 qdm2_at_decoder_deps="audiotoolbox"
3066 aac_at_encoder_deps="audiotoolbox"
3067 aac_at_encoder_select="audio_frame_queue"
3068 alac_at_encoder_deps="audiotoolbox"
3069 alac_at_encoder_select="audio_frame_queue"
3070 ilbc_at_encoder_deps="audiotoolbox"
3071 ilbc_at_encoder_select="audio_frame_queue"
3072 pcm_alaw_at_encoder_deps="audiotoolbox"
3073 pcm_alaw_at_encoder_select="audio_frame_queue"
3074 pcm_mulaw_at_encoder_deps="audiotoolbox"
3075 pcm_mulaw_at_encoder_select="audio_frame_queue"
3076 chromaprint_muxer_deps="chromaprint"
3077 h264_videotoolbox_encoder_deps="pthreads"
3078 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3079 hevc_videotoolbox_encoder_deps="pthreads"
3080 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3081 libaom_av1_decoder_deps="libaom"
3082 libaom_av1_encoder_deps="libaom"
3083 libaom_av1_encoder_select="extract_extradata_bsf"
3084 libcelt_decoder_deps="libcelt"
3085 libcodec2_decoder_deps="libcodec2"
3086 libcodec2_encoder_deps="libcodec2"
3087 libdavs2_decoder_deps="libdavs2"
3088 libfdk_aac_decoder_deps="libfdk_aac"
3089 libfdk_aac_encoder_deps="libfdk_aac"
3090 libfdk_aac_encoder_select="audio_frame_queue"
3091 libgme_demuxer_deps="libgme"
3092 libgsm_decoder_deps="libgsm"
3093 libgsm_encoder_deps="libgsm"
3094 libgsm_ms_decoder_deps="libgsm"
3095 libgsm_ms_encoder_deps="libgsm"
3096 libilbc_decoder_deps="libilbc"
3097 libilbc_encoder_deps="libilbc"
3098 libkvazaar_encoder_deps="libkvazaar"
3099 libmodplug_demuxer_deps="libmodplug"
3100 libmp3lame_encoder_deps="libmp3lame"
3101 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3102 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3103 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3104 libopencore_amrnb_encoder_select="audio_frame_queue"
3105 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3106 libopenh264_decoder_deps="libopenh264"
3107 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3108 libopenh264_encoder_deps="libopenh264"
3109 libopenjpeg_decoder_deps="libopenjpeg"
3110 libopenjpeg_encoder_deps="libopenjpeg"
3111 libopenmpt_demuxer_deps="libopenmpt"
3112 libopus_decoder_deps="libopus"
3113 libopus_encoder_deps="libopus"
3114 libopus_encoder_select="audio_frame_queue"
3115 librsvg_decoder_deps="librsvg"
3116 libshine_encoder_deps="libshine"
3117 libshine_encoder_select="audio_frame_queue"
3118 libspeex_decoder_deps="libspeex"
3119 libspeex_encoder_deps="libspeex"
3120 libspeex_encoder_select="audio_frame_queue"
3121 libtheora_encoder_deps="libtheora"
3122 libtwolame_encoder_deps="libtwolame"
3123 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3124 libvorbis_decoder_deps="libvorbis"
3125 libvorbis_encoder_deps="libvorbis libvorbisenc"
3126 libvorbis_encoder_select="audio_frame_queue"
3127 libvpx_vp8_decoder_deps="libvpx"
3128 libvpx_vp8_encoder_deps="libvpx"
3129 libvpx_vp9_decoder_deps="libvpx"
3130 libvpx_vp9_encoder_deps="libvpx"
3131 libwavpack_encoder_deps="libwavpack"
3132 libwavpack_encoder_select="audio_frame_queue"
3133 libwebp_encoder_deps="libwebp"
3134 libwebp_anim_encoder_deps="libwebp"
3135 libx262_encoder_deps="libx262"
3136 libx264_encoder_deps="libx264"
3137 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3138 libx264rgb_encoder_select="libx264_encoder"
3139 libx265_encoder_deps="libx265"
3140 libxavs_encoder_deps="libxavs"
3141 libxavs2_encoder_deps="libxavs2"
3142 libxvid_encoder_deps="libxvid"
3143 libzvbi_teletext_decoder_deps="libzvbi"
3144 vapoursynth_demuxer_deps="vapoursynth"
3145 videotoolbox_suggest="coreservices"
3146 videotoolbox_deps="corefoundation coremedia corevideo"
3147 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3148
3149 # demuxers / muxers
3150 ac3_demuxer_select="ac3_parser"
3151 aiff_muxer_select="iso_media"
3152 asf_demuxer_select="riffdec"
3153 asf_o_demuxer_select="riffdec"
3154 asf_muxer_select="riffenc"
3155 asf_stream_muxer_select="asf_muxer"
3156 avi_demuxer_select="iso_media riffdec exif"
3157 avi_muxer_select="riffenc"
3158 caf_demuxer_select="iso_media riffdec"
3159 caf_muxer_select="iso_media"
3160 dash_muxer_select="mp4_muxer"
3161 dash_demuxer_deps="libxml2"
3162 dirac_demuxer_select="dirac_parser"
3163 dts_demuxer_select="dca_parser"
3164 dtshd_demuxer_select="dca_parser"
3165 dv_demuxer_select="dvprofile"
3166 dv_muxer_select="dvprofile"
3167 dxa_demuxer_select="riffdec"
3168 eac3_demuxer_select="ac3_parser"
3169 f4v_muxer_select="mov_muxer"
3170 fifo_muxer_deps="threads"
3171 flac_demuxer_select="flac_parser"
3172 hds_muxer_select="flv_muxer"
3173 hls_muxer_select="mpegts_muxer"
3174 hls_muxer_suggest="gcrypt openssl"
3175 image2_alias_pix_demuxer_select="image2_demuxer"
3176 image2_brender_pix_demuxer_select="image2_demuxer"
3177 ipod_muxer_select="mov_muxer"
3178 ismv_muxer_select="mov_muxer"
3179 matroska_audio_muxer_select="matroska_muxer"
3180 matroska_demuxer_select="iso_media riffdec"
3181 matroska_demuxer_suggest="bzlib lzo zlib"
3182 matroska_muxer_select="iso_media riffenc"
3183 mmf_muxer_select="riffenc"
3184 mov_demuxer_select="iso_media riffdec"
3185 mov_demuxer_suggest="zlib"
3186 mov_muxer_select="iso_media riffenc rtpenc_chain"
3187 mp3_demuxer_select="mpegaudio_parser"
3188 mp3_muxer_select="mpegaudioheader"
3189 mp4_muxer_select="mov_muxer"
3190 mpegts_demuxer_select="iso_media"
3191 mpegts_muxer_select="adts_muxer latm_muxer"
3192 mpegtsraw_demuxer_select="mpegts_demuxer"
3193 mxf_d10_muxer_select="mxf_muxer"
3194 mxf_opatom_muxer_select="mxf_muxer"
3195 nut_muxer_select="riffenc"
3196 nuv_demuxer_select="riffdec"
3197 oga_muxer_select="ogg_muxer"
3198 ogg_demuxer_select="dirac_parse"
3199 ogv_muxer_select="ogg_muxer"
3200 opus_muxer_select="ogg_muxer"
3201 psp_muxer_select="mov_muxer"
3202 rtp_demuxer_select="sdp_demuxer"
3203 rtp_muxer_select="golomb"
3204 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3205 rtsp_demuxer_select="http_protocol rtpdec"
3206 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3207 sap_demuxer_select="sdp_demuxer"
3208 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3209 sdp_demuxer_select="rtpdec"
3210 smoothstreaming_muxer_select="ismv_muxer"
3211 spdif_demuxer_select="adts_header"
3212 spdif_muxer_select="adts_header"
3213 spx_muxer_select="ogg_muxer"
3214 swf_demuxer_suggest="zlib"
3215 tak_demuxer_select="tak_parser"
3216 tg2_muxer_select="mov_muxer"
3217 tgp_muxer_select="mov_muxer"
3218 vobsub_demuxer_select="mpegps_demuxer"
3219 w64_demuxer_select="wav_demuxer"
3220 w64_muxer_select="wav_muxer"
3221 wav_demuxer_select="riffdec"
3222 wav_muxer_select="riffenc"
3223 webm_muxer_select="iso_media riffenc"
3224 webm_dash_manifest_demuxer_select="matroska_demuxer"
3225 wtv_demuxer_select="mpegts_demuxer riffdec"
3226 wtv_muxer_select="mpegts_muxer riffenc"
3227 xmv_demuxer_select="riffdec"
3228 xwma_demuxer_select="riffdec"
3229
3230 # indevs / outdevs
3231 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3232 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3233 alsa_indev_deps="alsa"
3234 alsa_outdev_deps="alsa"
3235 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3236 avfoundation_indev_suggest="coregraphics applicationservices"
3237 avfoundation_indev_extralibs="-framework Foundation"
3238 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3239 caca_outdev_deps="libcaca"
3240 decklink_deps_any="libdl LoadLibrary"
3241 decklink_indev_deps="decklink threads"
3242 decklink_indev_extralibs="-lstdc++"
3243 decklink_outdev_deps="decklink threads"
3244 decklink_outdev_suggest="libklvanc"
3245 decklink_outdev_extralibs="-lstdc++"
3246 libndi_newtek_indev_deps="libndi_newtek"
3247 libndi_newtek_indev_extralibs="-lndi"
3248 libndi_newtek_outdev_deps="libndi_newtek"
3249 libndi_newtek_outdev_extralibs="-lndi"
3250 dshow_indev_deps="IBaseFilter"
3251 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3252 fbdev_indev_deps="linux_fb_h"
3253 fbdev_outdev_deps="linux_fb_h"
3254 gdigrab_indev_deps="CreateDIBSection"
3255 gdigrab_indev_extralibs="-lgdi32"
3256 gdigrab_indev_select="bmp_decoder"
3257 iec61883_indev_deps="libiec61883"
3258 jack_indev_deps="libjack"
3259 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3260 kmsgrab_indev_deps="libdrm"
3261 lavfi_indev_deps="avfilter"
3262 libcdio_indev_deps="libcdio"
3263 libdc1394_indev_deps="libdc1394"
3264 openal_indev_deps="openal"
3265 opengl_outdev_deps="opengl"
3266 oss_indev_deps_any="sys_soundcard_h"
3267 oss_outdev_deps_any="sys_soundcard_h"
3268 pulse_indev_deps="libpulse"
3269 pulse_outdev_deps="libpulse"
3270 sdl2_outdev_deps="sdl2"
3271 sndio_indev_deps="sndio"
3272 sndio_outdev_deps="sndio"
3273 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3274 v4l2_indev_suggest="libv4l2"
3275 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3276 v4l2_outdev_suggest="libv4l2"
3277 vfwcap_indev_deps="vfw32 vfwcap_defines"
3278 xcbgrab_indev_deps="libxcb"
3279 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3280 xv_outdev_deps="xlib"
3281
3282 # protocols
3283 async_protocol_deps="threads"
3284 bluray_protocol_deps="libbluray"
3285 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3286 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3287 ffrtmpcrypt_protocol_select="tcp_protocol"
3288 ffrtmphttp_protocol_conflict="librtmp_protocol"
3289 ffrtmphttp_protocol_select="http_protocol"
3290 ftp_protocol_select="tcp_protocol"
3291 gopher_protocol_select="network"
3292 http_protocol_select="tcp_protocol"
3293 http_protocol_suggest="zlib"
3294 httpproxy_protocol_select="tcp_protocol"
3295 httpproxy_protocol_suggest="zlib"
3296 https_protocol_select="tls_protocol"
3297 https_protocol_suggest="zlib"
3298 icecast_protocol_select="http_protocol"
3299 mmsh_protocol_select="http_protocol"
3300 mmst_protocol_select="network"
3301 rtmp_protocol_conflict="librtmp_protocol"
3302 rtmp_protocol_select="tcp_protocol"
3303 rtmp_protocol_suggest="zlib"
3304 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3305 rtmpe_protocol_suggest="zlib"
3306 rtmps_protocol_conflict="librtmp_protocol"
3307 rtmps_protocol_select="tls_protocol"
3308 rtmps_protocol_suggest="zlib"
3309 rtmpt_protocol_select="ffrtmphttp_protocol"
3310 rtmpt_protocol_suggest="zlib"
3311 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3312 rtmpte_protocol_suggest="zlib"
3313 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3314 rtmpts_protocol_suggest="zlib"
3315 rtp_protocol_select="udp_protocol"
3316 schannel_conflict="openssl gnutls libtls mbedtls"
3317 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3318 sctp_protocol_select="network"
3319 securetransport_conflict="openssl gnutls libtls mbedtls"
3320 srtp_protocol_select="rtp_protocol srtp"
3321 tcp_protocol_select="network"
3322 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3323 tls_protocol_select="tcp_protocol"
3324 udp_protocol_select="network"
3325 udplite_protocol_select="network"
3326 unix_protocol_deps="sys_un_h"
3327 unix_protocol_select="network"
3328
3329 # external library protocols
3330 librtmp_protocol_deps="librtmp"
3331 librtmpe_protocol_deps="librtmp"
3332 librtmps_protocol_deps="librtmp"
3333 librtmpt_protocol_deps="librtmp"
3334 librtmpte_protocol_deps="librtmp"
3335 libsmbclient_protocol_deps="libsmbclient gplv3"
3336 libsrt_protocol_deps="libsrt"
3337 libsrt_protocol_select="network"
3338 libssh_protocol_deps="libssh"
3339 libtls_conflict="openssl gnutls mbedtls"
3340
3341 # filters
3342 afftdn_filter_deps="avcodec"
3343 afftdn_filter_select="fft"
3344 afftfilt_filter_deps="avcodec"
3345 afftfilt_filter_select="fft"
3346 afir_filter_deps="avcodec"
3347 afir_filter_select="fft"
3348 amovie_filter_deps="avcodec avformat"
3349 aresample_filter_deps="swresample"
3350 ass_filter_deps="libass"
3351 atempo_filter_deps="avcodec"
3352 atempo_filter_select="rdft"
3353 avgblur_opencl_filter_deps="opencl"
3354 azmq_filter_deps="libzmq"
3355 blackframe_filter_deps="gpl"
3356 bm3d_filter_deps="avcodec"
3357 bm3d_filter_select="dct"
3358 boxblur_filter_deps="gpl"
3359 boxblur_opencl_filter_deps="opencl gpl"
3360 bs2b_filter_deps="libbs2b"
3361 colormatrix_filter_deps="gpl"
3362 convolution_opencl_filter_deps="opencl"
3363 convolve_filter_deps="avcodec"
3364 convolve_filter_select="fft"
3365 coreimage_filter_deps="coreimage appkit"
3366 coreimage_filter_extralibs="-framework OpenGL"
3367 coreimagesrc_filter_deps="coreimage appkit"
3368 coreimagesrc_filter_extralibs="-framework OpenGL"
3369 cover_rect_filter_deps="avcodec avformat gpl"
3370 cropdetect_filter_deps="gpl"
3371 deconvolve_filter_deps="avcodec"
3372 deconvolve_filter_select="fft"
3373 deinterlace_qsv_filter_deps="libmfx"
3374 deinterlace_vaapi_filter_deps="vaapi"
3375 delogo_filter_deps="gpl"
3376 denoise_vaapi_filter_deps="vaapi"
3377 deshake_filter_select="pixelutils"
3378 dilation_opencl_filter_deps="opencl"
3379 drawtext_filter_deps="libfreetype"
3380 drawtext_filter_suggest="libfontconfig libfribidi"
3381 elbg_filter_deps="avcodec"
3382 eq_filter_deps="gpl"
3383 erosion_opencl_filter_deps="opencl"
3384 fftfilt_filter_deps="avcodec"
3385 fftfilt_filter_select="rdft"
3386 fftdnoiz_filter_deps="avcodec"
3387 fftdnoiz_filter_select="fft"
3388 find_rect_filter_deps="avcodec avformat gpl"
3389 firequalizer_filter_deps="avcodec"
3390 firequalizer_filter_select="rdft"
3391 flite_filter_deps="libflite"
3392 framerate_filter_select="pixelutils"
3393 frei0r_filter_deps="frei0r libdl"
3394 frei0r_src_filter_deps="frei0r libdl"
3395 fspp_filter_deps="gpl"
3396 geq_filter_deps="gpl"
3397 histeq_filter_deps="gpl"
3398 hqdn3d_filter_deps="gpl"
3399 interlace_filter_deps="gpl"
3400 kerndeint_filter_deps="gpl"
3401 ladspa_filter_deps="ladspa libdl"
3402 lensfun_filter_deps="liblensfun version3"
3403 lv2_filter_deps="lv2"
3404 mcdeint_filter_deps="avcodec gpl"
3405 movie_filter_deps="avcodec avformat"
3406 mpdecimate_filter_deps="gpl"
3407 mpdecimate_filter_select="pixelutils"
3408 mptestsrc_filter_deps="gpl"
3409 negate_filter_deps="lut_filter"
3410 nnedi_filter_deps="gpl"
3411 ocr_filter_deps="libtesseract"
3412 ocv_filter_deps="libopencv"
3413 openclsrc_filter_deps="opencl"
3414 overlay_opencl_filter_deps="opencl"
3415 overlay_qsv_filter_deps="libmfx"
3416 overlay_qsv_filter_select="qsvvpp"
3417 owdenoise_filter_deps="gpl"
3418 pan_filter_deps="swresample"
3419 perspective_filter_deps="gpl"
3420 phase_filter_deps="gpl"
3421 pp7_filter_deps="gpl"
3422 pp_filter_deps="gpl postproc"
3423 prewitt_opencl_filter_deps="opencl"
3424 procamp_vaapi_filter_deps="vaapi"
3425 program_opencl_filter_deps="opencl"
3426 pullup_filter_deps="gpl"
3427 removelogo_filter_deps="avcodec avformat swscale"
3428 repeatfields_filter_deps="gpl"
3429 resample_filter_deps="avresample"
3430 roberts_opencl_filter_deps="opencl"
3431 rubberband_filter_deps="librubberband"
3432 sab_filter_deps="gpl swscale"
3433 scale2ref_filter_deps="swscale"
3434 scale_filter_deps="swscale"
3435 scale_qsv_filter_deps="libmfx"
3436 select_filter_select="pixelutils"
3437 sharpness_vaapi_filter_deps="vaapi"
3438 showcqt_filter_deps="avcodec avformat swscale"
3439 showcqt_filter_suggest="libfontconfig libfreetype"
3440 showcqt_filter_select="fft"
3441 showfreqs_filter_deps="avcodec"
3442 showfreqs_filter_select="fft"
3443 showspectrum_filter_deps="avcodec"
3444 showspectrum_filter_select="fft"
3445 showspectrumpic_filter_deps="avcodec"
3446 showspectrumpic_filter_select="fft"
3447 signature_filter_deps="gpl avcodec avformat"
3448 smartblur_filter_deps="gpl swscale"
3449 sobel_opencl_filter_deps="opencl"
3450 sofalizer_filter_deps="libmysofa avcodec"
3451 sofalizer_filter_select="fft"
3452 spectrumsynth_filter_deps="avcodec"
3453 spectrumsynth_filter_select="fft"
3454 spp_filter_deps="gpl avcodec"
3455 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3456 sr_filter_deps="avformat swscale"
3457 sr_filter_select="dnn"
3458 stereo3d_filter_deps="gpl"
3459 subtitles_filter_deps="avformat avcodec libass"
3460 super2xsai_filter_deps="gpl"
3461 pixfmts_super2xsai_test_deps="super2xsai_filter"
3462 tinterlace_filter_deps="gpl"
3463 tinterlace_merge_test_deps="tinterlace_filter"
3464 tinterlace_pad_test_deps="tinterlace_filter"
3465 tonemap_filter_deps="const_nan"
3466 tonemap_opencl_filter_deps="opencl const_nan"
3467 unsharp_opencl_filter_deps="opencl"
3468 uspp_filter_deps="gpl avcodec"
3469 vaguedenoiser_filter_deps="gpl"
3470 vidstabdetect_filter_deps="libvidstab"
3471 vidstabtransform_filter_deps="libvidstab"
3472 libvmaf_filter_deps="libvmaf pthreads"
3473 zmq_filter_deps="libzmq"
3474 zoompan_filter_deps="swscale"
3475 zscale_filter_deps="libzimg const_nan"
3476 scale_vaapi_filter_deps="vaapi"
3477 vpp_qsv_filter_deps="libmfx"
3478 vpp_qsv_filter_select="qsvvpp"
3479
3480 # examples
3481 avio_dir_cmd_deps="avformat avutil"
3482 avio_reading_deps="avformat avcodec avutil"
3483 decode_audio_example_deps="avcodec avutil"
3484 decode_video_example_deps="avcodec avutil"
3485 demuxing_decoding_example_deps="avcodec avformat avutil"
3486 encode_audio_example_deps="avcodec avutil"
3487 encode_video_example_deps="avcodec avutil"
3488 extract_mvs_example_deps="avcodec avformat avutil"
3489 filter_audio_example_deps="avfilter avutil"
3490 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3491 filtering_video_example_deps="avfilter avcodec avformat avutil"
3492 http_multiclient_example_deps="avformat avutil fork"
3493 hw_decode_example_deps="avcodec avformat avutil"
3494 metadata_example_deps="avformat avutil"
3495 muxing_example_deps="avcodec avformat avutil swscale"
3496 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3497 remuxing_example_deps="avcodec avformat avutil"
3498 resampling_audio_example_deps="avutil swresample"
3499 scaling_video_example_deps="avutil swscale"
3500 transcode_aac_example_deps="avcodec avformat swresample"
3501 transcoding_example_deps="avfilter avcodec avformat avutil"
3502 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3503 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3504
3505 # EXTRALIBS_LIST
3506 cpu_init_extralibs="pthreads_extralibs"
3507 cws2fws_extralibs="zlib_extralibs"
3508
3509 # libraries, in any order
3510 avcodec_deps="avutil"
3511 avcodec_suggest="libm"
3512 avcodec_select="null_bsf"
3513 avdevice_deps="avformat avcodec avutil"
3514 avdevice_suggest="libm"
3515 avfilter_deps="avutil"
3516 avfilter_suggest="libm"
3517 avformat_deps="avcodec avutil"
3518 avformat_suggest="libm network zlib"
3519 avresample_deps="avutil"
3520 avresample_suggest="libm"
3521 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3522 postproc_deps="avutil gpl"
3523 postproc_suggest="libm"
3524 swresample_deps="avutil"
3525 swresample_suggest="libm libsoxr"
3526 swscale_deps="avutil"
3527 swscale_suggest="libm"
3528
3529 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3530 avfilter_extralibs="pthreads_extralibs"
3531 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3532
3533 # programs
3534 ffmpeg_deps="avcodec avfilter avformat"
3535 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3536                null_filter
3537                trim_filter"
3538 ffmpeg_suggest="ole32 psapi shell32"
3539 ffplay_deps="avcodec avformat swscale swresample sdl2"
3540 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3541 ffplay_suggest="shell32"
3542 ffprobe_deps="avcodec avformat"
3543 ffprobe_suggest="shell32"
3544
3545 # documentation
3546 podpages_deps="perl"
3547 manpages_deps="perl pod2man"
3548 htmlpages_deps="perl"
3549 htmlpages_deps_any="makeinfo_html texi2html"
3550 txtpages_deps="perl makeinfo"
3551 doc_deps_any="manpages htmlpages podpages txtpages"
3552
3553 # default parameters
3554
3555 logfile="ffbuild/config.log"
3556
3557 # installation paths
3558 prefix_default="/usr/local"
3559 bindir_default='${prefix}/bin'
3560 datadir_default='${prefix}/share/ffmpeg'
3561 docdir_default='${prefix}/share/doc/ffmpeg'
3562 incdir_default='${prefix}/include'
3563 libdir_default='${prefix}/lib'
3564 mandir_default='${prefix}/share/man'
3565
3566 # toolchain
3567 ar_default="ar"
3568 cc_default="gcc"
3569 cxx_default="g++"
3570 host_cc_default="gcc"
3571 doxygen_default="doxygen"
3572 install="install"
3573 ln_s_default="ln -s -f"
3574 nm_default="nm -g"
3575 pkg_config_default=pkg-config
3576 ranlib_default="ranlib"
3577 strip_default="strip"
3578 version_script='--version-script'
3579 objformat="elf32"
3580 x86asmexe_default="nasm"
3581 windres_default="windres"
3582 nvcc_default="nvcc"
3583 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3584 striptype="direct"
3585
3586 # OS
3587 target_os_default=$(tolower $(uname -s))
3588 host_os=$target_os_default
3589
3590 # machine
3591 if test "$target_os_default" = aix; then
3592     arch_default=$(uname -p)
3593     strip_default="strip -X32_64"
3594 else
3595     arch_default=$(uname -m)
3596 fi
3597 cpu="generic"
3598 intrinsics="none"
3599
3600 # configurable options
3601 enable $PROGRAM_LIST
3602 enable $DOCUMENT_LIST
3603 enable $EXAMPLE_LIST
3604 enable $(filter_out avresample $LIBRARY_LIST)
3605 enable stripping
3606
3607 enable asm
3608 enable debug
3609 enable doc
3610 enable faan faandct faanidct
3611 enable optimizations
3612 enable runtime_cpudetect
3613 enable safe_bitstream_reader
3614 enable static
3615 enable swscale_alpha
3616 enable valgrind_backtrace
3617
3618 sws_max_filter_size_default=256
3619 set_default sws_max_filter_size
3620
3621 # internal components are enabled by default
3622 enable $EXTRALIBS_LIST
3623
3624 # Avoid external, non-system, libraries getting enabled by dependency resolution
3625 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3626
3627 # build settings
3628 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3629 LIBPREF="lib"
3630 LIBSUF=".a"
3631 FULLNAME='$(NAME)$(BUILDSUF)'
3632 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3633 SLIBPREF="lib"
3634 SLIBSUF=".so"
3635 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3636 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3637 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3638 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3639 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3640 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3641 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3642
3643 asflags_filter=echo
3644 cflags_filter=echo
3645 ldflags_filter=echo
3646
3647 AS_C='-c'
3648 AS_O='-o $@'
3649 CC_C='-c'
3650 CC_E='-E -o $@'
3651 CC_O='-o $@'
3652 CXX_C='-c'
3653 CXX_O='-o $@'
3654 OBJCC_C='-c'
3655 OBJCC_E='-E -o $@'
3656 OBJCC_O='-o $@'
3657 X86ASM_O='-o $@'
3658 LD_O='-o $@'
3659 LD_LIB='-l%'
3660 LD_PATH='-L'
3661 HOSTCC_C='-c'
3662 HOSTCC_E='-E -o $@'
3663 HOSTCC_O='-o $@'
3664 HOSTLD_O='-o $@'
3665 NVCC_C='-c'
3666 NVCC_O='-o $@'
3667
3668 host_extralibs='-lm'
3669 host_cflags_filter=echo
3670 host_ldflags_filter=echo
3671
3672 target_path='$(CURDIR)'
3673
3674 # since the object filename is not given with the -MM flag, the compiler
3675 # is only able to print the basename, and we must add the path ourselves
3676 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3677 DEPFLAGS='-MM'
3678
3679 mkdir -p ffbuild
3680
3681 # find source path
3682 if test -f configure; then
3683     source_path=.
3684 else
3685     source_path=$(cd $(dirname "$0"); pwd)
3686     case "$source_path" in
3687         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3688     esac
3689     test -e "$source_path/config.h" &&
3690         die "Out of tree builds are impossible with config.h in source dir."
3691 fi
3692
3693 for v in "$@"; do
3694     r=${v#*=}
3695     l=${v%"$r"}
3696     r=$(sh_quote "$r")
3697     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3698 done
3699
3700 find_things_extern(){
3701     thing=$1
3702     pattern=$2
3703     file=$source_path/$3
3704     out=${4:-$thing}
3705     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3706 }
3707
3708 find_filters_extern(){
3709     file=$source_path/$1
3710     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file
3711     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file
3712 }
3713
3714 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3715 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3716 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3717 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3718 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3719 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3720 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3721 CODEC_LIST="
3722     $ENCODER_LIST
3723     $DECODER_LIST
3724 "
3725 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3726 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3727 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3728 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3729
3730 AVCODEC_COMPONENTS_LIST="
3731     $BSF_LIST
3732     $DECODER_LIST
3733     $ENCODER_LIST
3734     $HWACCEL_LIST
3735     $PARSER_LIST
3736 "
3737
3738 AVDEVICE_COMPONENTS_LIST="
3739     $INDEV_LIST
3740     $OUTDEV_LIST
3741 "
3742
3743 AVFILTER_COMPONENTS_LIST="
3744     $FILTER_LIST
3745 "
3746
3747 AVFORMAT_COMPONENTS_LIST="
3748     $DEMUXER_LIST
3749     $MUXER_LIST
3750     $PROTOCOL_LIST
3751 "
3752
3753 ALL_COMPONENTS="
3754     $AVCODEC_COMPONENTS_LIST
3755     $AVDEVICE_COMPONENTS_LIST
3756     $AVFILTER_COMPONENTS_LIST
3757     $AVFORMAT_COMPONENTS_LIST
3758 "
3759
3760 for n in $COMPONENT_LIST; do
3761     v=$(toupper ${n%s})_LIST
3762     eval enable \$$v
3763     eval ${n}_if_any="\$$v"
3764 done
3765
3766 enable $ARCH_EXT_LIST
3767
3768 die_unknown(){
3769     echo "Unknown option \"$1\"."
3770     echo "See $0 --help for available options."
3771     exit 1
3772 }
3773
3774 print_in_columns() {
3775     cols=$(expr $ncols / 24)
3776     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3777 }
3778
3779 show_list() {
3780     suffix=_$1
3781     shift
3782     echo $* | sed s/$suffix//g | print_in_columns
3783     exit 0
3784 }
3785
3786 rand_list(){
3787     IFS=', '
3788     set -- $*
3789     unset IFS
3790     for thing; do
3791         comp=${thing%:*}
3792         prob=${thing#$comp}
3793         prob=${prob#:}
3794         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3795         echo "prob ${prob:-0.5}"
3796         printf '%s\n' $comp
3797     done
3798 }
3799
3800 do_random(){
3801     action=$1
3802     shift
3803     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3804     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3805 }
3806
3807 for opt do
3808     optval="${opt#*=}"
3809     case "$opt" in
3810         --extra-ldflags=*)
3811             add_ldflags $optval
3812         ;;
3813         --extra-ldexeflags=*)
3814             add_ldexeflags $optval
3815         ;;
3816         --extra-ldsoflags=*)
3817             add_ldsoflags $optval
3818         ;;
3819         --extra-ldlibflags=*)
3820             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3821                  "removed in the future. Use --extra-ldsoflags instead."
3822             add_ldsoflags $optval
3823         ;;
3824         --extra-libs=*)
3825             add_extralibs $optval
3826         ;;
3827         --disable-devices)
3828             disable $INDEV_LIST $OUTDEV_LIST
3829         ;;
3830         --enable-debug=*)
3831             debuglevel="$optval"
3832         ;;
3833         --disable-programs)
3834             disable $PROGRAM_LIST
3835         ;;
3836         --disable-everything)
3837             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3838         ;;
3839         --disable-all)
3840             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3841             disable $LIBRARY_LIST $PROGRAM_LIST doc
3842             enable avutil
3843         ;;
3844         --enable-random|--disable-random)
3845             action=${opt%%-random}
3846             do_random ${action#--} $COMPONENT_LIST
3847         ;;
3848         --enable-random=*|--disable-random=*)
3849             action=${opt%%-random=*}
3850             do_random ${action#--} $optval
3851         ;;
3852         --enable-sdl)
3853             enable sdl2
3854         ;;
3855         --enable-*=*|--disable-*=*)
3856             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3857             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3858             eval list=\$$(toupper $thing)_LIST
3859             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3860             list=$(filter "$name" $list)
3861             [ "$list" = "" ] && warn "Option $opt did not match anything"
3862             $action $list
3863         ;;
3864         --enable-yasm|--disable-yasm)
3865             warn "The ${opt} option is only provided for compatibility and will be\n"\
3866                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3867             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3868         ;;
3869         --yasmexe=*)
3870             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3871                  "removed in the future. Use --x86asmexe instead."
3872             x86asmexe="$optval"
3873         ;;
3874         --enable-?*|--disable-?*)
3875             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3876             if is_in $option $COMPONENT_LIST; then
3877                 test $action = disable && action=unset
3878                 eval $action \$$(toupper ${option%s})_LIST
3879             elif is_in $option $CMDLINE_SELECT; then
3880                 $action $option
3881             else
3882                 die_unknown $opt
3883             fi
3884         ;;
3885         --list-*)
3886             NAME="${opt#--list-}"
3887             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3888             NAME=${NAME%s}
3889             eval show_list $NAME \$$(toupper $NAME)_LIST
3890         ;;
3891         --help|-h) show_help
3892         ;;
3893         --quiet|-q) quiet=yes
3894         ;;
3895         --fatal-warnings) enable fatal_warnings
3896         ;;
3897         --libfuzzer=*)
3898             libfuzzer_path="$optval"
3899         ;;
3900         *)
3901             optname="${opt%%=*}"
3902             optname="${optname#--}"
3903             optname=$(echo "$optname" | sed 's/-/_/g')
3904             if is_in $optname $CMDLINE_SET; then
3905                 eval $optname='$optval'
3906             elif is_in $optname $CMDLINE_APPEND; then
3907                 append $optname "$optval"
3908             else
3909                 die_unknown $opt
3910             fi
3911         ;;
3912     esac
3913 done
3914
3915 for e in $env; do
3916     eval "export $e"
3917 done
3918
3919 if disabled autodetect; then
3920
3921     # Unless iconv is explicitely disabled by the user, we still want to probe
3922     # for the iconv from the libc.
3923     disabled iconv || enable libc_iconv
3924
3925     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3926     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3927 fi
3928 # Mark specifically enabled, but normally autodetected libraries as requested.
3929 for lib in $AUTODETECT_LIBS; do
3930     enabled $lib && request $lib
3931 done
3932 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3933 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3934 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3935
3936 disabled logging && logfile=/dev/null
3937
3938 # command line configuration sanity checks
3939
3940 # we need to build at least one lib type
3941 if ! enabled_any static shared; then
3942     cat <<EOF
3943 At least one library type must be built.
3944 Specify --enable-static to build the static libraries or --enable-shared to
3945 build the shared libraries as well. To only build the shared libraries specify
3946 --disable-static in addition to --enable-shared.
3947 EOF
3948     exit 1
3949 fi
3950
3951 die_license_disabled() {
3952     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3953 }
3954
3955 die_license_disabled_gpl() {
3956     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3957 }
3958
3959 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3960 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3961
3962 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3963 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3964
3965 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3966
3967 if enabled nonfree; then
3968     license="nonfree and unredistributable"
3969 elif enabled gplv3; then
3970     license="GPL version 3 or later"
3971 elif enabled lgplv3; then
3972     license="LGPL version 3 or later"
3973 elif enabled gpl; then
3974     license="GPL version 2 or later"
3975 else
3976     license="LGPL version 2.1 or later"
3977 fi
3978
3979 enabled_all gnutls openssl &&
3980     die "GnuTLS and OpenSSL must not be enabled at the same time."
3981
3982 enabled_all gnutls mbedtls &&
3983     die "GnuTLS and mbedTLS must not be enabled at the same time."
3984
3985 enabled_all openssl mbedtls &&
3986     die "OpenSSL and mbedTLS must not be enabled at the same time."
3987
3988 # Disable all the library-specific components if the library itself
3989 # is disabled, see AVCODEC_LIST and following _LIST variables.
3990
3991 disable_components(){
3992     disabled ${1} && disable $(
3993         eval components="\$$(toupper ${1})_COMPONENTS"
3994         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3995     )
3996 }
3997
3998 map 'disable_components $v' $LIBRARY_LIST
3999
4000 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4001 set >> $logfile
4002
4003 test -n "$valgrind" && toolchain="valgrind-memcheck"
4004
4005 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4006     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4007     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4008 }
4009
4010 case "$toolchain" in
4011     *-asan)
4012         cc_default="${toolchain%-asan}"
4013         add_cflags  -fsanitize=address
4014         add_ldflags -fsanitize=address
4015     ;;
4016     *-msan)
4017         cc_default="${toolchain%-msan}"
4018         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4019         add_ldflags -fsanitize=memory
4020     ;;
4021     *-tsan)
4022         cc_default="${toolchain%-tsan}"
4023         add_cflags  -fsanitize=thread
4024         add_ldflags -fsanitize=thread
4025         case "$toolchain" in
4026             gcc-tsan)
4027                 add_cflags  -fPIC
4028                 add_ldflags -fPIC
4029                 ;;
4030         esac
4031     ;;
4032     *-usan)
4033         cc_default="${toolchain%-usan}"
4034         add_cflags  -fsanitize=undefined
4035         add_ldflags -fsanitize=undefined
4036     ;;
4037     valgrind-*)
4038         target_exec_default="valgrind"
4039         case "$toolchain" in
4040             valgrind-massif)
4041                 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"
4042                 ;;
4043             valgrind-memcheck)
4044                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4045                 ;;
4046         esac
4047     ;;
4048     msvc)
4049         # Check whether the current MSVC version needs the C99 converter.
4050         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4051         # support enough of C99 to build ffmpeg. Default to the new
4052         # behaviour if the regexp was unable to match anything, since this
4053         # successfully parses the version number of existing supported
4054         # versions that require the converter (MSVC 2010 and 2012).
4055         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4056         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4057             cc_default="cl"
4058             cxx_default="cl"
4059         else
4060             die "Unsupported MSVC version (2013 or newer required)"
4061         fi
4062         ld_default="$source_path/compat/windows/mslink"
4063         nm_default="dumpbin -symbols"
4064         ar_default="lib"
4065         case "$arch" in
4066         aarch64|arm64)
4067             as_default="armasm64"
4068             ;;
4069         arm*)
4070             as_default="armasm"
4071             ;;
4072         esac
4073         target_os_default="win32"
4074         # Use a relative path for TMPDIR. This makes sure all the
4075         # ffconf temp files are written with a relative path, avoiding
4076         # issues with msys/win32 path conversion for MSVC parameters
4077         # such as -Fo<file> or -out:<file>.
4078         TMPDIR=.
4079     ;;
4080     icl)
4081         cc_default="icl"
4082         ld_default="xilink"
4083         nm_default="dumpbin -symbols"
4084         ar_default="xilib"
4085         target_os_default="win32"
4086         TMPDIR=.
4087     ;;
4088     gcov)
4089         add_cflags  -fprofile-arcs -ftest-coverage
4090         add_ldflags -fprofile-arcs -ftest-coverage
4091     ;;
4092     llvm-cov)
4093         add_cflags -fprofile-arcs -ftest-coverage
4094         add_ldflags --coverage
4095     ;;
4096     hardened)
4097         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4098         add_cflags   -fno-strict-overflow -fstack-protector-all
4099         add_ldflags  -Wl,-z,relro -Wl,-z,now
4100         add_cflags   -fPIE
4101         add_ldexeflags -fPIE -pie
4102     ;;
4103     ?*)
4104         die "Unknown toolchain $toolchain"
4105     ;;
4106 esac
4107
4108 if test -n "$cross_prefix"; then
4109     test -n "$arch" && test -n "$target_os" ||
4110         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4111     enable cross_compile
4112 fi
4113
4114 ar_default="${cross_prefix}${ar_default}"
4115 cc_default="${cross_prefix}${cc_default}"
4116 cxx_default="${cross_prefix}${cxx_default}"
4117 nm_default="${cross_prefix}${nm_default}"
4118 pkg_config_default="${cross_prefix}${pkg_config_default}"
4119 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4120     ranlib_default="${cross_prefix}${ranlib_default} -D"
4121 else
4122     ranlib_default="${cross_prefix}${ranlib_default}"
4123 fi
4124 strip_default="${cross_prefix}${strip_default}"
4125 windres_default="${cross_prefix}${windres_default}"
4126
4127 sysinclude_default="${sysroot}/usr/include"
4128
4129 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4130     target_exec target_os x86asmexe nvcc
4131 enabled cross_compile || host_cc_default=$cc
4132 set_default host_cc
4133
4134 pkg_config_fail_message=""
4135 if ! $pkg_config --version >/dev/null 2>&1; then
4136     warn "$pkg_config not found, library detection may fail."
4137     pkg_config=false
4138 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4139     pkg_config_fail_message="
4140 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4141 fi
4142
4143 if test $doxygen != $doxygen_default && \
4144   ! $doxygen --version >/dev/null 2>&1; then
4145     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4146 fi
4147
4148 exesuf() {
4149     case $1 in
4150         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4151     esac
4152 }
4153
4154 EXESUF=$(exesuf $target_os)
4155 HOSTEXESUF=$(exesuf $host_os)
4156
4157 # set temporary file name
4158 : ${TMPDIR:=$TEMPDIR}
4159 : ${TMPDIR:=$TMP}
4160 : ${TMPDIR:=/tmp}
4161
4162 if [ -n "$tempprefix" ] ; then
4163     mktemp(){
4164         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4165         echo "$tmpname"
4166         mkdir "$tmpname"
4167     }
4168 elif ! test_cmd mktemp -u XXXXXX; then
4169     # simple replacement for missing mktemp
4170     # NOT SAFE FOR GENERAL USE
4171     mktemp(){
4172         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4173         echo "$tmpname"
4174         mkdir "$tmpname"
4175     }
4176 fi
4177
4178 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4179     die "Unable to create temporary directory in $TMPDIR."
4180