avcodec/utils: report insane channel count errors
[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-libdc1394       enable IIDC-1394 grabbing using libdc1394
230                            and libraw1394 [no]
231   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
232   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
233   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
234   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
235   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
236   --enable-libgme          enable Game Music Emu via libgme [no]
237   --enable-libgsm          enable GSM de/encoding via libgsm [no]
238   --enable-libiec61883     enable iec61883 via libiec61883 [no]
239   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
240   --enable-libjack         enable JACK audio sound server [no]
241   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
242   --enable-libmodplug      enable ModPlug via libmodplug [no]
243   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
244   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
245   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
246   --enable-libopencv       enable video filtering via libopencv [no]
247   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
248   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
249   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
250   --enable-libopus         enable Opus de/encoding via libopus [no]
251   --enable-libpulse        enable Pulseaudio input via libpulse [no]
252   --enable-librsvg         enable SVG rasterization via librsvg [no]
253   --enable-librubberband   enable rubberband needed for rubberband filter [no]
254   --enable-librtmp         enable RTMP[E] support via librtmp [no]
255   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
256   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
257   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
258   --enable-libsoxr         enable Include libsoxr resampling [no]
259   --enable-libspeex        enable Speex de/encoding via libspeex [no]
260   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
261   --enable-libssh          enable SFTP protocol via libssh [no]
262   --enable-libtensorflow   enable TensorFlow as a DNN module backend
263                            for DNN based filters like sr [no]
264   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
265   --enable-libtheora       enable Theora encoding via libtheora [no]
266   --enable-libtls          enable LibreSSL (via libtls), needed for https support
267                            if openssl, gnutls or mbedtls is not used [no]
268   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
269   --enable-libv4l2         enable libv4l2/v4l-utils [no]
270   --enable-libvidstab      enable video stabilization using vid.stab [no]
271   --enable-libvmaf         enable vmaf filter via libvmaf [no]
272   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
273   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
274                            native implementation exists [no]
275   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
276   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
277   --enable-libwebp         enable WebP encoding via libwebp [no]
278   --enable-libx264         enable H.264 encoding via x264 [no]
279   --enable-libx265         enable HEVC encoding via x265 [no]
280   --enable-libxavs         enable AVS encoding via xavs [no]
281   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
282   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
283   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
284   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
285   --enable-libxvid         enable Xvid encoding via xvidcore,
286                            native MPEG-4/Xvid encoder exists [no]
287   --enable-libxml2         enable XML parsing using the C library libxml2, needed
288                            for dash demuxing support [no]
289   --enable-libzimg         enable z.lib, needed for zscale filter [no]
290   --enable-libzmq          enable message passing via libzmq [no]
291   --enable-libzvbi         enable teletext support via libzvbi [no]
292   --enable-lv2             enable LV2 audio filtering [no]
293   --disable-lzma           disable lzma [autodetect]
294   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
295   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
296   --enable-mbedtls         enable mbedTLS, needed for https support
297                            if openssl, gnutls or libtls is not used [no]
298   --enable-mediacodec      enable Android MediaCodec support [no]
299   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
300   --enable-openal          enable OpenAL 1.1 capture support [no]
301   --enable-opencl          enable OpenCL processing [no]
302   --enable-opengl          enable OpenGL rendering [no]
303   --enable-openssl         enable openssl, needed for https support
304                            if gnutls, libtls or mbedtls is not used [no]
305   --disable-sndio          disable sndio support [autodetect]
306   --disable-schannel       disable SChannel SSP, needed for TLS support on
307                            Windows if openssl and gnutls are not used [autodetect]
308   --disable-sdl2           disable sdl2 [autodetect]
309   --disable-securetransport disable Secure Transport, needed for TLS support
310                            on OSX if openssl and gnutls are not used [autodetect]
311   --enable-vapoursynth     enable VapourSynth demuxer [no]
312   --disable-xlib           disable xlib [autodetect]
313   --disable-zlib           disable zlib [autodetect]
314
315   The following libraries provide various hardware acceleration features:
316   --disable-amf            disable AMF video encoding code [autodetect]
317   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
318   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
319   --disable-cuvid          disable Nvidia CUVID support [autodetect]
320   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
321   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
322   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
323   --enable-libdrm          enable DRM code (Linux) [no]
324   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
325   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
326   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
327   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
328   --disable-nvenc          disable Nvidia video encoding code [autodetect]
329   --enable-omx             enable OpenMAX IL code [no]
330   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
331   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
332   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
333   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
334   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
335   --disable-videotoolbox   disable VideoToolbox code [autodetect]
336
337 Toolchain options:
338   --arch=ARCH              select architecture [$arch]
339   --cpu=CPU                select the minimum required CPU (affects
340                            instruction selection, may crash on older CPUs)
341   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
342   --progs-suffix=SUFFIX    program name suffix []
343   --enable-cross-compile   assume a cross-compiler is used
344   --sysroot=PATH           root of cross-build tree
345   --sysinclude=PATH        location of cross-build system headers
346   --target-os=OS           compiler targets OS [$target_os]
347   --target-exec=CMD        command to run executables on target
348   --target-path=DIR        path to view of build directory on target
349   --target-samples=DIR     path to samples directory on target
350   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
351   --toolchain=NAME         set tool defaults according to NAME
352                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
353                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
354                            valgrind-massif, valgrind-memcheck,
355                            msvc, icl, gcov, llvm-cov, hardened)
356   --nm=NM                  use nm tool NM [$nm_default]
357   --ar=AR                  use archive tool AR [$ar_default]
358   --as=AS                  use assembler AS [$as_default]
359   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
360   --strip=STRIP            use strip tool STRIP [$strip_default]
361   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
362   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
363   --cc=CC                  use C compiler CC [$cc_default]
364   --cxx=CXX                use C compiler CXX [$cxx_default]
365   --objcc=OCC              use ObjC compiler OCC [$cc_default]
366   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
367   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
368   --ld=LD                  use linker LD [$ld_default]
369   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
370   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
371   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
372   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
373   --host-cc=HOSTCC         use host C compiler HOSTCC
374   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
375   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
376   --host-ld=HOSTLD         use host linker HOSTLD
377   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
378   --host-libs=HLIBS        use libs HLIBS when linking for host
379   --host-os=OS             compiler host OS [$target_os]
380   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
381   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
382   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
383   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
384   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
385   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
386   --extra-libs=ELIBS       add ELIBS [$ELIBS]
387   --extra-version=STRING   version string suffix []
388   --optflags=OPTFLAGS      override optimization-related compiler flags
389   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
390   --build-suffix=SUFFIX    library name suffix []
391   --enable-pic             build position-independent code
392   --enable-thumb           compile for Thumb instruction set
393   --enable-lto             use link-time optimization
394   --env="ENV=override"     override the environment variables
395
396 Advanced options (experts only):
397   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
398   --custom-allocator=NAME  use a supported custom allocator
399   --disable-symver         disable symbol versioning
400   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
401   --disable-safe-bitstream-reader
402                            disable buffer boundary checking in bitreaders
403                            (faster, but may crash)
404   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
405
406 Optimization options (experts only):
407   --disable-asm            disable all assembly optimizations
408   --disable-altivec        disable AltiVec optimizations
409   --disable-vsx            disable VSX optimizations
410   --disable-power8         disable POWER8 optimizations
411   --disable-amd3dnow       disable 3DNow! optimizations
412   --disable-amd3dnowext    disable 3DNow! extended optimizations
413   --disable-mmx            disable MMX optimizations
414   --disable-mmxext         disable MMXEXT optimizations
415   --disable-sse            disable SSE optimizations
416   --disable-sse2           disable SSE2 optimizations
417   --disable-sse3           disable SSE3 optimizations
418   --disable-ssse3          disable SSSE3 optimizations
419   --disable-sse4           disable SSE4 optimizations
420   --disable-sse42          disable SSE4.2 optimizations
421   --disable-avx            disable AVX optimizations
422   --disable-xop            disable XOP optimizations
423   --disable-fma3           disable FMA3 optimizations
424   --disable-fma4           disable FMA4 optimizations
425   --disable-avx2           disable AVX2 optimizations
426   --disable-avx512         disable AVX-512 optimizations
427   --disable-aesni          disable AESNI optimizations
428   --disable-armv5te        disable armv5te optimizations
429   --disable-armv6          disable armv6 optimizations
430   --disable-armv6t2        disable armv6t2 optimizations
431   --disable-vfp            disable VFP optimizations
432   --disable-neon           disable NEON optimizations
433   --disable-inline-asm     disable use of inline assembly
434   --disable-x86asm         disable use of standalone x86 assembly
435   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
436   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
437   --disable-msa            disable MSA optimizations
438   --disable-mipsfpu        disable floating point MIPS optimizations
439   --disable-mmi            disable Loongson SIMD optimizations
440   --disable-fast-unaligned consider unaligned accesses slow
441
442 Developer options (useful when working on FFmpeg itself):
443   --disable-debug          disable debugging symbols
444   --enable-debug=LEVEL     set the debug level [$debuglevel]
445   --disable-optimizations  disable compiler optimizations
446   --enable-extra-warnings  enable more compiler warnings
447   --disable-stripping      disable stripping of executables and shared libraries
448   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
449                            2 causes a slowdown at runtime.
450   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
451   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
452                            leaks and errors, using the specified valgrind binary.
453                            Cannot be combined with --target-exec
454   --enable-ftrapv          Trap arithmetic overflows
455   --samples=PATH           location of test samples for FATE, if not set use
456                            \$FATE_SAMPLES at make invocation time.
457   --enable-neon-clobber-test check NEON registers for clobbering (should be
458                            used only for debugging purposes)
459   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
460                            should be used only for debugging purposes)
461   --enable-random          randomly enable/disable components
462   --disable-random
463   --enable-random=LIST     randomly enable/disable specific components or
464   --disable-random=LIST    component groups. LIST is a comma-separated list
465                            of NAME[:PROB] entries where NAME is a component
466                            (group) and PROB the probability associated with
467                            NAME (default 0.5).
468   --random-seed=VALUE      seed value for --enable/disable-random
469   --disable-valgrind-backtrace do not print a backtrace under Valgrind
470                            (only applies to --disable-optimizations builds)
471   --enable-osfuzz          Enable building fuzzer tool
472   --libfuzzer=PATH         path to libfuzzer
473   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
474                            in the name) of tests whose result is ignored
475   --enable-linux-perf      enable Linux Performance Monitor API
476
477 NOTE: Object files are built at the place where configure is launched.
478 EOF
479   exit 0
480 }
481
482 if test -t 1 && which tput >/dev/null 2>&1; then
483     ncolors=$(tput colors)
484     if test -n "$ncolors" && test $ncolors -ge 8; then
485         bold_color=$(tput bold)
486         warn_color=$(tput setaf 3)
487         error_color=$(tput setaf 1)
488         reset_color=$(tput sgr0)
489     fi
490     # 72 used instead of 80 since that's the default of pr
491     ncols=$(tput cols)
492 fi
493 : ${ncols:=72}
494
495 log(){
496     echo "$@" >> $logfile
497 }
498
499 log_file(){
500     log BEGIN $1
501     pr -n -t $1 >> $logfile
502     log END $1
503 }
504
505 warn(){
506     log "WARNING: $*"
507     WARNINGS="${WARNINGS}WARNING: $*\n"
508 }
509
510 die(){
511     log "$@"
512     echo "$error_color$bold_color$@$reset_color"
513     cat <<EOF
514
515 If you think configure made a mistake, make sure you are using the latest
516 version from Git.  If the latest version fails, report the problem to the
517 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
518 EOF
519     if disabled logging; then
520         cat <<EOF
521 Rerun configure with logging enabled (do not use --disable-logging), and
522 include the log this produces with your report.
523 EOF
524     else
525         cat <<EOF
526 Include the log file "$logfile" produced by configure as this will help
527 solve the problem.
528 EOF
529     fi
530     exit 1
531 }
532
533 # Avoid locale weirdness, besides we really just want to translate ASCII.
534 toupper(){
535     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
536 }
537
538 tolower(){
539     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
540 }
541
542 c_escape(){
543     echo "$*" | sed 's/["\\]/\\\0/g'
544 }
545
546 sh_quote(){
547     v=$(echo "$1" | sed "s/'/'\\\\''/g")
548     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
549     echo "$v"
550 }
551
552 cleanws(){
553     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
554 }
555
556 filter(){
557     pat=$1
558     shift
559     for v; do
560         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
561     done
562 }
563
564 filter_out(){
565     pat=$1
566     shift
567     for v; do
568         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
569     done
570 }
571
572 map(){
573     m=$1
574     shift
575     for v; do eval $m; done
576 }
577
578 add_suffix(){
579     suffix=$1
580     shift
581     for v; do echo ${v}${suffix}; done
582 }
583
584 remove_suffix(){
585     suffix=$1
586     shift
587     for v; do echo ${v%$suffix}; done
588 }
589
590 set_all(){
591     value=$1
592     shift
593     for var in $*; do
594         eval $var=$value
595     done
596 }
597
598 set_weak(){
599     value=$1
600     shift
601     for var; do
602         eval : \${$var:=$value}
603     done
604 }
605
606 sanitize_var_name(){
607     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
608 }
609
610 set_sanitized(){
611     var=$1
612     shift
613     eval $(sanitize_var_name "$var")='$*'
614 }
615
616 get_sanitized(){
617     eval echo \$$(sanitize_var_name "$1")
618 }
619
620 pushvar(){
621     for pvar in $*; do
622         eval level=\${${pvar}_level:=0}
623         eval ${pvar}_${level}="\$$pvar"
624         eval ${pvar}_level=$(($level+1))
625     done
626 }
627
628 popvar(){
629     for pvar in $*; do
630         eval level=\${${pvar}_level:-0}
631         test $level = 0 && continue
632         eval level=$(($level-1))
633         eval $pvar="\${${pvar}_${level}}"
634         eval ${pvar}_level=$level
635         eval unset ${pvar}_${level}
636     done
637 }
638
639 request(){
640     for var in $*; do
641         eval ${var}_requested=yes
642         eval $var=
643     done
644 }
645
646 enable(){
647     set_all yes $*
648 }
649
650 disable(){
651     set_all no $*
652 }
653
654 enable_weak(){
655     set_weak yes $*
656 }
657
658 disable_weak(){
659     set_weak no $*
660 }
661
662 enable_sanitized(){
663     for var; do
664         enable $(sanitize_var_name $var)
665     done
666 }
667
668 disable_sanitized(){
669     for var; do
670         disable $(sanitize_var_name $var)
671     done
672 }
673
674 do_enable_deep(){
675     for var; do
676         enabled $var && continue
677         eval sel="\$${var}_select"
678         eval sgs="\$${var}_suggest"
679         pushvar var sgs
680         enable_deep $sel
681         popvar sgs
682         enable_deep_weak $sgs
683         popvar var
684     done
685 }
686
687 enable_deep(){
688     do_enable_deep $*
689     enable $*
690 }
691
692 enable_deep_weak(){
693     for var; do
694         disabled $var && continue
695         pushvar var
696         do_enable_deep $var
697         popvar var
698         enable_weak $var
699     done
700 }
701
702 requested(){
703     test "${1#!}" = "$1" && op="=" || op="!="
704     eval test "x\$${1#!}_requested" $op "xyes"
705 }
706
707 enabled(){
708     test "${1#!}" = "$1" && op="=" || op="!="
709     eval test "x\$${1#!}" $op "xyes"
710 }
711
712 disabled(){
713     test "${1#!}" = "$1" && op="=" || op="!="
714     eval test "x\$${1#!}" $op "xno"
715 }
716
717 enabled_all(){
718     for opt; do
719         enabled $opt || return 1
720     done
721 }
722
723 disabled_all(){
724     for opt; do
725         disabled $opt || return 1
726     done
727 }
728
729 enabled_any(){
730     for opt; do
731         enabled $opt && return 0
732     done
733 }
734
735 disabled_any(){
736     for opt; do
737         disabled $opt && return 0
738     done
739     return 1
740 }
741
742 set_default(){
743     for opt; do
744         eval : \${$opt:=\$${opt}_default}
745     done
746 }
747
748 is_in(){
749     value=$1
750     shift
751     for var in $*; do
752         [ $var = $value ] && return 0
753     done
754     return 1
755 }
756
757 check_deps(){
758     for cfg; do
759         enabled ${cfg}_checking && die "Circular dependency for $cfg."
760         disabled ${cfg}_checking && continue
761         enable ${cfg}_checking
762
763         eval dep_all="\$${cfg}_deps"
764         eval dep_any="\$${cfg}_deps_any"
765         eval dep_con="\$${cfg}_conflict"
766         eval dep_sel="\$${cfg}_select"
767         eval dep_sgs="\$${cfg}_suggest"
768         eval dep_ifa="\$${cfg}_if"
769         eval dep_ifn="\$${cfg}_if_any"
770
771         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
772         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
773         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
774
775         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
776         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
777         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
778         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
779         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
780         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
781
782         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
783
784         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
785             # filter out library deps, these do not belong in extralibs
786             is_in $dep $LIBRARY_LIST && continue
787             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
788         done
789
790         disable ${cfg}_checking
791     done
792 }
793
794 print_config(){
795     pfx=$1
796     files=$2
797     shift 2
798     map 'eval echo "$v \${$v:-no}"' "$@" |
799     awk "BEGIN { split(\"$files\", files) }
800         {
801             c = \"$pfx\" toupper(\$1);
802             v = \$2;
803             sub(/yes/, 1, v);
804             sub(/no/,  0, v);
805             for (f in files) {
806                 file = files[f];
807                 if (file ~ /\\.h\$/) {
808                     printf(\"#define %s %d\\n\", c, v) >>file;
809                 } else if (file ~ /\\.asm\$/) {
810                     printf(\"%%define %s %d\\n\", c, v) >>file;
811                 } else if (file ~ /\\.mak\$/) {
812                     n = -v ? \"\" : \"!\";
813                     printf(\"%s%s=yes\\n\", n, c) >>file;
814                 } else if (file ~ /\\.texi\$/) {
815                     pre = -v ? \"\" : \"@c \";
816                     yesno = \$2;
817                     c2 = tolower(c);
818                     gsub(/_/, \"-\", c2);
819                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
820                 }
821             }
822         }"
823 }
824
825 print_enabled(){
826     suf=$1
827     shift
828     for v; do
829         enabled $v && printf "%s\n" ${v%$suf}
830     done
831 }
832
833 append(){
834     var=$1
835     shift
836     eval "$var=\"\$$var $*\""
837 }
838
839 prepend(){
840     var=$1
841     shift
842     eval "$var=\"$* \$$var\""
843 }
844
845 unique(){
846     var=$1
847     uniq_list=""
848     for tok in $(eval echo \$$var); do
849         uniq_list="$(filter_out $tok $uniq_list) $tok"
850     done
851     eval "$var=\"${uniq_list}\""
852 }
853
854 resolve(){
855     var=$1
856     tmpvar=
857     for entry in $(eval echo \$$var); do
858         tmpvar="$tmpvar $(eval echo \$${entry})"
859     done
860     eval "$var=\"${tmpvar}\""
861 }
862
863 add_cppflags(){
864     append CPPFLAGS "$@"
865 }
866
867 add_cflags(){
868     append CFLAGS $($cflags_filter "$@")
869 }
870
871 add_cflags_headers(){
872     append CFLAGS_HEADERS $($cflags_filter "$@")
873 }
874
875 add_cxxflags(){
876     append CXXFLAGS $($cflags_filter "$@")
877 }
878
879 add_asflags(){
880     append ASFLAGS $($asflags_filter "$@")
881 }
882
883 add_objcflags(){
884     append OBJCFLAGS $($objcflags_filter "$@")
885 }
886
887 add_ldflags(){
888     append LDFLAGS $($ldflags_filter "$@")
889 }
890
891 add_ldexeflags(){
892     append LDEXEFLAGS $($ldflags_filter "$@")
893 }
894
895 add_ldsoflags(){
896     append LDSOFLAGS $($ldflags_filter "$@")
897 }
898
899 add_stripflags(){
900     append ASMSTRIPFLAGS "$@"
901 }
902
903 add_extralibs(){
904     prepend extralibs $($ldflags_filter "$@")
905 }
906
907 add_host_cppflags(){
908     append host_cppflags "$@"
909 }
910
911 add_host_cflags(){
912     append host_cflags $($host_cflags_filter "$@")
913 }
914
915 add_host_ldflags(){
916     append host_ldflags $($host_ldflags_filter "$@")
917 }
918
919 add_compat(){
920     append compat_objs $1
921     shift
922     map 'add_cppflags -D$v' "$@"
923 }
924
925 test_cmd(){
926     log "$@"
927     "$@" >> $logfile 2>&1
928 }
929
930 test_stat(){
931     log test_stat "$@"
932     stat "$1" >> $logfile 2>&1
933 }
934
935 cc_o(){
936     eval printf '%s\\n' $CC_O
937 }
938
939 cc_e(){
940     eval printf '%s\\n' $CC_E
941 }
942
943 test_cc(){
944     log test_cc "$@"
945     cat > $TMPC
946     log_file $TMPC
947     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
948 }
949
950 test_cxx(){
951     log test_cxx "$@"
952     cat > $TMPCPP
953     log_file $TMPCPP
954     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
955 }
956
957 test_objcc(){
958     log test_objcc "$@"
959     cat > $TMPM
960     log_file $TMPM
961     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
962 }
963
964 test_cpp(){
965     log test_cpp "$@"
966     cat > $TMPC
967     log_file $TMPC
968     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
969 }
970
971 as_o(){
972     eval printf '%s\\n' $AS_O
973 }
974
975 test_as(){
976     log test_as "$@"
977     cat > $TMPS
978     log_file $TMPS
979     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
980 }
981
982 x86asm_o(){
983     eval printf '%s\\n' $X86ASM_O
984 }
985
986 test_x86asm(){
987     log test_x86asm "$@"
988     echo "$1" > $TMPASM
989     log_file $TMPASM
990     shift
991     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
992 }
993
994 check_cmd(){
995     log check_cmd "$@"
996     cmd=$1
997     disabled $cmd && return
998     disable $cmd
999     test_cmd $@ && enable $cmd
1000 }
1001
1002 check_as(){
1003     log check_as "$@"
1004     name=$1
1005     code=$2
1006     shift 2
1007     disable $name
1008     test_as $@ <<EOF && enable $name
1009 $code
1010 EOF
1011 }
1012
1013 check_inline_asm(){
1014     log check_inline_asm "$@"
1015     name="$1"
1016     code="$2"
1017     shift 2
1018     disable $name
1019     test_cc "$@" <<EOF && enable $name
1020 void foo(void){ __asm__ volatile($code); }
1021 EOF
1022 }
1023
1024 check_inline_asm_flags(){
1025     log check_inline_asm_flags "$@"
1026     name="$1"
1027     code="$2"
1028     flags=''
1029     shift 2
1030     while [ "$1" != "" ]; do
1031       append flags $1
1032       shift
1033     done;
1034     disable $name
1035     cat > $TMPC <<EOF
1036 void foo(void){ __asm__ volatile($code); }
1037 EOF
1038     log_file $TMPC
1039     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1040     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1041 }
1042
1043 check_insn(){
1044     log check_insn "$@"
1045     check_inline_asm ${1}_inline "\"$2\""
1046     check_as ${1}_external "$2"
1047 }
1048
1049 check_x86asm(){
1050     log check_x86asm "$@"
1051     name=$1
1052     shift
1053     disable $name
1054     test_x86asm "$@" && enable $name
1055 }
1056
1057 ld_o(){
1058     eval printf '%s\\n' $LD_O
1059 }
1060
1061 test_ld(){
1062     log test_ld "$@"
1063     type=$1
1064     shift 1
1065     flags=$(filter_out '-l*|*.so' $@)
1066     libs=$(filter '-l*|*.so' $@)
1067     test_$type $($cflags_filter $flags) || return
1068     flags=$($ldflags_filter $flags)
1069     libs=$($ldflags_filter $libs)
1070     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1071 }
1072
1073 check_ld(){
1074     log check_ld "$@"
1075     type=$1
1076     name=$2
1077     shift 2
1078     disable $name
1079     test_ld $type $@ && enable $name
1080 }
1081
1082 print_include(){
1083     hdr=$1
1084     test "${hdr%.h}" = "${hdr}" &&
1085         echo "#include $hdr"    ||
1086         echo "#include <$hdr>"
1087 }
1088
1089 test_code(){
1090     log test_code "$@"
1091     check=$1
1092     headers=$2
1093     code=$3
1094     shift 3
1095     {
1096         for hdr in $headers; do
1097             print_include $hdr
1098         done
1099         echo "int main(void) { $code; return 0; }"
1100     } | test_$check "$@"
1101 }
1102
1103 check_cppflags(){
1104     log check_cppflags "$@"
1105     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1106 #include <stdlib.h>
1107 EOF
1108 }
1109
1110 test_cflags(){
1111     log test_cflags "$@"
1112     set -- $($cflags_filter "$@")
1113     test_cc "$@" <<EOF
1114 int x;
1115 EOF
1116 }
1117
1118 check_cflags(){
1119     log check_cflags "$@"
1120     test_cflags "$@" && add_cflags "$@"
1121 }
1122
1123 check_cxxflags(){
1124     log check_cxxflags "$@"
1125     set -- $($cflags_filter "$@")
1126     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1127 int x;
1128 EOF
1129 }
1130
1131 test_objcflags(){
1132     log test_objcflags "$@"
1133     set -- $($objcflags_filter "$@")
1134     test_objcc "$@" <<EOF
1135 int x;
1136 EOF
1137 }
1138
1139 check_objcflags(){
1140     log check_objcflags "$@"
1141     test_objcflags "$@" && add_objcflags "$@"
1142 }
1143
1144 test_ldflags(){
1145     log test_ldflags "$@"
1146     set -- $($ldflags_filter "$@")
1147     test_ld "cc" "$@" <<EOF
1148 int main(void){ return 0; }
1149 EOF
1150 }
1151
1152 check_ldflags(){
1153     log check_ldflags "$@"
1154     test_ldflags "$@" && add_ldflags "$@"
1155 }
1156
1157 test_stripflags(){
1158     log test_stripflags "$@"
1159     # call test_cc to get a fresh TMPO
1160     test_cc <<EOF
1161 int main(void) { return 0; }
1162 EOF
1163     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1164 }
1165
1166 check_stripflags(){
1167     log check_stripflags "$@"
1168     test_stripflags "$@" && add_stripflags "$@"
1169 }
1170
1171 check_header(){
1172     log check_header "$@"
1173     headers=$1
1174     shift
1175     disable_sanitized $headers
1176     {
1177         for hdr in $headers; do
1178             print_include $hdr
1179         done
1180         echo "int x;"
1181     } | test_cpp "$@" && enable_sanitized $headers
1182 }
1183
1184 check_header_objcc(){
1185     log check_header_objcc "$@"
1186     rm -f -- "$TMPO"
1187     header=$1
1188     shift
1189     disable_sanitized $header
1190     {
1191        echo "#include <$header>"
1192        echo "int main(void) { return 0; }"
1193     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1194 }
1195
1196 check_apple_framework(){
1197     log check_apple_framework "$@"
1198     framework="$1"
1199     name="$(tolower $framework)"
1200     header="${framework}/${framework}.h"
1201     disable $name
1202     check_header_objcc $header &&
1203         enable $name && eval ${name}_extralibs='"-framework $framework"'
1204 }
1205
1206 check_func(){
1207     log check_func "$@"
1208     func=$1
1209     shift
1210     disable $func
1211     test_ld "cc" "$@" <<EOF && enable $func
1212 extern int $func();
1213 int main(void){ $func(); }
1214 EOF
1215 }
1216
1217 check_complexfunc(){
1218     log check_complexfunc "$@"
1219     func=$1
1220     narg=$2
1221     shift 2
1222     test $narg = 2 && args="f, g" || args="f * I"
1223     disable $func
1224     test_ld "cc" "$@" <<EOF && enable $func
1225 #include <complex.h>
1226 #include <math.h>
1227 float foo(complex float f, complex float g) { return $func($args); }
1228 int main(void){ return (int) foo; }
1229 EOF
1230 }
1231
1232 check_mathfunc(){
1233     log check_mathfunc "$@"
1234     func=$1
1235     narg=$2
1236     shift 2
1237     test $narg = 2 && args="f, g" || args="f"
1238     disable $func
1239     test_ld "cc" "$@" <<EOF && enable $func
1240 #include <math.h>
1241 float foo(float f, float g) { return $func($args); }
1242 int main(void){ return (int) foo; }
1243 EOF
1244 }
1245
1246 check_func_headers(){
1247     log check_func_headers "$@"
1248     headers=$1
1249     funcs=$2
1250     shift 2
1251     {
1252         for hdr in $headers; do
1253             print_include $hdr
1254         done
1255         echo "#include <stdint.h>"
1256         for func in $funcs; do
1257             echo "long check_$func(void) { return (long) $func; }"
1258         done
1259         echo "int main(void) { int ret = 0;"
1260         # LTO could optimize out the test functions without this
1261         for func in $funcs; do
1262             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1263         done
1264         echo "return ret; }"
1265     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1266 }
1267
1268 check_class_headers_cpp(){
1269     log check_class_headers_cpp "$@"
1270     headers=$1
1271     classes=$2
1272     shift 2
1273     {
1274         for hdr in $headers; do
1275             echo "#include <$hdr>"
1276         done
1277         echo "int main(void) { "
1278         i=1
1279         for class in $classes; do
1280             echo "$class obj$i;"
1281             i=$(expr $i + 1)
1282         done
1283         echo "return 0; }"
1284     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1285 }
1286
1287 test_cpp_condition(){
1288     log test_cpp_condition "$@"
1289     header=$1
1290     condition=$2
1291     shift 2
1292     test_cpp "$@" <<EOF
1293 #include <$header>
1294 #if !($condition)
1295 #error "unsatisfied condition: $condition"
1296 #endif
1297 EOF
1298 }
1299
1300 check_cpp_condition(){
1301     log check_cpp_condition "$@"
1302     name=$1
1303     shift 1
1304     disable $name
1305     test_cpp_condition "$@" && enable $name
1306 }
1307
1308 test_cflags_cc(){
1309     log test_cflags_cc "$@"
1310     flags=$1
1311     header=$2
1312     condition=$3
1313     shift 3
1314     set -- $($cflags_filter "$flags")
1315     test_cc "$@" <<EOF
1316 #include <$header>
1317 #if !($condition)
1318 #error "unsatisfied condition: $condition"
1319 #endif
1320 EOF
1321 }
1322
1323 check_lib(){
1324     log check_lib "$@"
1325     name="$1"
1326     headers="$2"
1327     funcs="$3"
1328     shift 3
1329     disable $name
1330     check_func_headers "$headers" "$funcs" "$@" &&
1331         enable $name && eval ${name}_extralibs="\$@"
1332 }
1333
1334 check_lib_cpp(){
1335     log check_lib_cpp "$@"
1336     name="$1"
1337     headers="$2"
1338     classes="$3"
1339     shift 3
1340     disable $name
1341     check_class_headers_cpp "$headers" "$classes" "$@" &&
1342         enable $name && eval ${name}_extralibs="\$@"
1343 }
1344
1345 test_pkg_config(){
1346     log test_pkg_config "$@"
1347     name="$1"
1348     pkg_version="$2"
1349     pkg="${2%% *}"
1350     headers="$3"
1351     funcs="$4"
1352     shift 4
1353     disable $name
1354     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1355     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1356     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1357     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1358         enable $name &&
1359         set_sanitized "${name}_cflags"    $pkg_cflags &&
1360         set_sanitized "${name}_extralibs" $pkg_libs
1361 }
1362
1363 check_pkg_config(){
1364     log check_pkg_config "$@"
1365     name="$1"
1366     test_pkg_config "$@" &&
1367         eval add_cflags \$${name}_cflags
1368 }
1369
1370 test_exec(){
1371     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1372 }
1373
1374 check_exec_crash(){
1375     log check_exec_crash "$@"
1376     code=$(cat)
1377
1378     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1379     # are safe but may not be available everywhere.  Thus we use
1380     # raise(SIGTERM) instead.  The check is run in a subshell so we
1381     # can redirect the "Terminated" message from the shell.  SIGBUS
1382     # is not defined by standard C so it is used conditionally.
1383
1384     (test_exec "$@") >> $logfile 2>&1 <<EOF
1385 #include <signal.h>
1386 static void sighandler(int sig){
1387     raise(SIGTERM);
1388 }
1389 int foo(void){
1390     $code
1391 }
1392 int (*func_ptr)(void) = foo;
1393 int main(void){
1394     signal(SIGILL, sighandler);
1395     signal(SIGFPE, sighandler);
1396     signal(SIGSEGV, sighandler);
1397 #ifdef SIGBUS
1398     signal(SIGBUS, sighandler);
1399 #endif
1400     return func_ptr();
1401 }
1402 EOF
1403 }
1404
1405 check_type(){
1406     log check_type "$@"
1407     headers=$1
1408     type=$2
1409     shift 2
1410     disable_sanitized "$type"
1411     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1412 }
1413
1414 check_struct(){
1415     log check_struct "$@"
1416     headers=$1
1417     struct=$2
1418     member=$3
1419     shift 3
1420     disable_sanitized "${struct}_${member}"
1421     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1422         enable_sanitized "${struct}_${member}"
1423 }
1424
1425 check_builtin(){
1426     log check_builtin "$@"
1427     name=$1
1428     headers=$2
1429     builtin=$3
1430     shift 3
1431     disable "$name"
1432     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1433 }
1434
1435 check_compile_assert(){
1436     log check_compile_assert "$@"
1437     name=$1
1438     headers=$2
1439     condition=$3
1440     shift 3
1441     disable "$name"
1442     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1443 }
1444
1445 check_cc(){
1446     log check_cc "$@"
1447     name=$1
1448     shift
1449     disable "$name"
1450     test_code cc "$@" && enable "$name"
1451 }
1452
1453 require(){
1454     log require "$@"
1455     name_version="$1"
1456     name="${1%% *}"
1457     shift
1458     check_lib $name "$@" || die "ERROR: $name_version not found"
1459 }
1460
1461 require_cc(){
1462     log require_cc "$@"
1463     name="$1"
1464     shift
1465     test_code cc "$@" || die "ERROR: $name failed"
1466 }
1467
1468 require_cpp(){
1469     name="$1"
1470     headers="$2"
1471     classes="$3"
1472     shift 3
1473     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1474 }
1475
1476 require_header(){
1477     log require_header "$@"
1478     headers="$1"
1479     check_header "$@" || die "ERROR: $headers not found"
1480 }
1481
1482 require_cpp_condition(){
1483     log require_cpp_condition "$@"
1484     condition="$2"
1485     test_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1486 }
1487
1488 require_pkg_config(){
1489     log require_pkg_config "$@"
1490     pkg_version="$2"
1491     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1492 }
1493
1494 hostcc_e(){
1495     eval printf '%s\\n' $HOSTCC_E
1496 }
1497
1498 hostcc_o(){
1499     eval printf '%s\\n' $HOSTCC_O
1500 }
1501
1502 test_host_cc(){
1503     log test_host_cc "$@"
1504     cat > $TMPC
1505     log_file $TMPC
1506     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1507 }
1508
1509 test_host_cpp(){
1510     log test_host_cpp "$@"
1511     cat > $TMPC
1512     log_file $TMPC
1513     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1514 }
1515
1516 check_host_cppflags(){
1517     log check_host_cppflags "$@"
1518     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1519 #include <stdlib.h>
1520 EOF
1521 }
1522
1523 check_host_cflags(){
1524     log check_host_cflags "$@"
1525     set -- $($host_cflags_filter "$@")
1526     test_host_cc "$@" <<EOF && append host_cflags "$@"
1527 int x;
1528 EOF
1529 }
1530
1531 test_host_cpp_condition(){
1532     log test_host_cpp_condition "$@"
1533     header=$1
1534     condition=$2
1535     shift 2
1536     test_host_cpp "$@" <<EOF
1537 #include <$header>
1538 #if !($condition)
1539 #error "unsatisfied condition: $condition"
1540 #endif
1541 EOF
1542 }
1543
1544 check_host_cpp_condition(){
1545     log check_host_cpp_condition "$@"
1546     name=$1
1547     shift 1
1548     disable $name
1549     test_host_cpp_condition "$@" && enable $name
1550 }
1551
1552 cp_if_changed(){
1553     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1554     mkdir -p "$(dirname $2)"
1555     cp -f "$1" "$2"
1556 }
1557
1558 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1559 # system-dependent things.
1560
1561 AVCODEC_COMPONENTS="
1562     bsfs
1563     decoders
1564     encoders
1565     hwaccels
1566     parsers
1567 "
1568
1569 AVDEVICE_COMPONENTS="
1570     indevs
1571     outdevs
1572 "
1573
1574 AVFILTER_COMPONENTS="
1575     filters
1576 "
1577
1578 AVFORMAT_COMPONENTS="
1579     demuxers
1580     muxers
1581     protocols
1582 "
1583
1584 COMPONENT_LIST="
1585     $AVCODEC_COMPONENTS
1586     $AVDEVICE_COMPONENTS
1587     $AVFILTER_COMPONENTS
1588     $AVFORMAT_COMPONENTS
1589 "
1590
1591 EXAMPLE_LIST="
1592     avio_dir_cmd_example
1593     avio_reading_example
1594     decode_audio_example
1595     decode_video_example
1596     demuxing_decoding_example
1597     encode_audio_example
1598     encode_video_example
1599     extract_mvs_example
1600     filter_audio_example
1601     filtering_audio_example
1602     filtering_video_example
1603     http_multiclient_example
1604     hw_decode_example
1605     metadata_example
1606     muxing_example
1607     qsvdec_example
1608     remuxing_example
1609     resampling_audio_example
1610     scaling_video_example
1611     transcode_aac_example
1612     transcoding_example
1613     vaapi_encode_example
1614     vaapi_transcode_example
1615 "
1616
1617 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1618     alsa
1619     appkit
1620     avfoundation
1621     bzlib
1622     coreimage
1623     iconv
1624     libxcb
1625     libxcb_shm
1626     libxcb_shape
1627     libxcb_xfixes
1628     lzma
1629     schannel
1630     sdl2
1631     securetransport
1632     sndio
1633     xlib
1634     zlib
1635 "
1636
1637 EXTERNAL_LIBRARY_GPL_LIST="
1638     avisynth
1639     frei0r
1640     libcdio
1641     librubberband
1642     libvidstab
1643     libx264
1644     libx265
1645     libxavs
1646     libxvid
1647 "
1648
1649 EXTERNAL_LIBRARY_NONFREE_LIST="
1650     decklink
1651     libndi_newtek
1652     libfdk_aac
1653     openssl
1654     libtls
1655 "
1656
1657 EXTERNAL_LIBRARY_VERSION3_LIST="
1658     gmp
1659     libopencore_amrnb
1660     libopencore_amrwb
1661     libvmaf
1662     libvo_amrwbenc
1663     mbedtls
1664     rkmpp
1665 "
1666
1667 EXTERNAL_LIBRARY_GPLV3_LIST="
1668     libsmbclient
1669 "
1670
1671 EXTERNAL_LIBRARY_LIST="
1672     $EXTERNAL_LIBRARY_GPL_LIST
1673     $EXTERNAL_LIBRARY_NONFREE_LIST
1674     $EXTERNAL_LIBRARY_VERSION3_LIST
1675     $EXTERNAL_LIBRARY_GPLV3_LIST
1676     chromaprint
1677     gcrypt
1678     gnutls
1679     jni
1680     ladspa
1681     libaom
1682     libass
1683     libbluray
1684     libbs2b
1685     libcaca
1686     libcelt
1687     libcodec2
1688     libdc1394
1689     libdrm
1690     libflite
1691     libfontconfig
1692     libfreetype
1693     libfribidi
1694     libgme
1695     libgsm
1696     libiec61883
1697     libilbc
1698     libjack
1699     libkvazaar
1700     libmodplug
1701     libmp3lame
1702     libmysofa
1703     libopencv
1704     libopenh264
1705     libopenjpeg
1706     libopenmpt
1707     libopus
1708     libpulse
1709     librsvg
1710     librtmp
1711     libshine
1712     libsmbclient
1713     libsnappy
1714     libsoxr
1715     libspeex
1716     libsrt
1717     libssh
1718     libtensorflow
1719     libtesseract
1720     libtheora
1721     libtwolame
1722     libv4l2
1723     libvorbis
1724     libvpx
1725     libwavpack
1726     libwebp
1727     libxml2
1728     libzimg
1729     libzmq
1730     libzvbi
1731     lv2
1732     mediacodec
1733     openal
1734     opengl
1735     vapoursynth
1736 "
1737
1738 HWACCEL_AUTODETECT_LIBRARY_LIST="
1739     amf
1740     audiotoolbox
1741     crystalhd
1742     cuda
1743     cuvid
1744     d3d11va
1745     dxva2
1746     ffnvcodec
1747     nvdec
1748     nvenc
1749     vaapi
1750     vdpau
1751     videotoolbox
1752     v4l2_m2m
1753     xvmc
1754 "
1755
1756 # catchall list of things that require external libs to link
1757 EXTRALIBS_LIST="
1758     cpu_init
1759     cws2fws
1760 "
1761
1762 HWACCEL_LIBRARY_NONFREE_LIST="
1763     cuda_sdk
1764     libnpp
1765 "
1766
1767 HWACCEL_LIBRARY_LIST="
1768     $HWACCEL_LIBRARY_NONFREE_LIST
1769     libmfx
1770     mmal
1771     omx
1772     opencl
1773 "
1774
1775 DOCUMENT_LIST="
1776     doc
1777     htmlpages
1778     manpages
1779     podpages
1780     txtpages
1781 "
1782
1783 FEATURE_LIST="
1784     ftrapv
1785     gray
1786     hardcoded_tables
1787     omx_rpi
1788     runtime_cpudetect
1789     safe_bitstream_reader
1790     shared
1791     small
1792     static
1793     swscale_alpha
1794 "
1795
1796 LIBRARY_LIST="
1797     avcodec
1798     avdevice
1799     avfilter
1800     avformat
1801     avresample
1802     avutil
1803     postproc
1804     swresample
1805     swscale
1806 "
1807
1808 LICENSE_LIST="
1809     gpl
1810     nonfree
1811     version3
1812 "
1813
1814 PROGRAM_LIST="
1815     ffplay
1816     ffprobe
1817     ffmpeg
1818 "
1819
1820 SUBSYSTEM_LIST="
1821     dct
1822     dwt
1823     error_resilience
1824     faan
1825     fast_unaligned
1826     fft
1827     lsp
1828     lzo
1829     mdct
1830     pixelutils
1831     network
1832     rdft
1833 "
1834
1835 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1836 CONFIG_LIST="
1837     $DOCUMENT_LIST
1838     $EXAMPLE_LIST
1839     $EXTERNAL_LIBRARY_LIST
1840     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1841     $HWACCEL_LIBRARY_LIST
1842     $HWACCEL_AUTODETECT_LIBRARY_LIST
1843     $FEATURE_LIST
1844     $LICENSE_LIST
1845     $LIBRARY_LIST
1846     $PROGRAM_LIST
1847     $SUBSYSTEM_LIST
1848     autodetect
1849     fontconfig
1850     linux_perf
1851     memory_poisoning
1852     neon_clobber_test
1853     ossfuzz
1854     pic
1855     thumb
1856     valgrind_backtrace
1857     xmm_clobber_test
1858     $COMPONENT_LIST
1859 "
1860
1861 THREADS_LIST="
1862     pthreads
1863     os2threads
1864     w32threads
1865 "
1866
1867 ATOMICS_LIST="
1868     atomics_gcc
1869     atomics_suncc
1870     atomics_win32
1871 "
1872
1873 AUTODETECT_LIBS="
1874     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1875     $HWACCEL_AUTODETECT_LIBRARY_LIST
1876     $THREADS_LIST
1877 "
1878
1879 ARCH_LIST="
1880     aarch64
1881     alpha
1882     arm
1883     avr32
1884     avr32_ap
1885     avr32_uc
1886     bfin
1887     ia64
1888     m68k
1889     mips
1890     mips64
1891     parisc
1892     ppc
1893     ppc64
1894     s390
1895     sh4
1896     sparc
1897     sparc64
1898     tilegx
1899     tilepro
1900     tomi
1901     x86
1902     x86_32
1903     x86_64
1904 "
1905
1906 ARCH_EXT_LIST_ARM="
1907     armv5te
1908     armv6
1909     armv6t2
1910     armv8
1911     neon
1912     vfp
1913     vfpv3
1914     setend
1915 "
1916
1917 ARCH_EXT_LIST_MIPS="
1918     mipsfpu
1919     mips32r2
1920     mips32r5
1921     mips64r2
1922     mips32r6
1923     mips64r6
1924     mipsdsp
1925     mipsdspr2
1926     msa
1927 "
1928
1929 ARCH_EXT_LIST_LOONGSON="
1930     loongson2
1931     loongson3
1932     mmi
1933 "
1934
1935 ARCH_EXT_LIST_X86_SIMD="
1936     aesni
1937     amd3dnow
1938     amd3dnowext
1939     avx
1940     avx2
1941     avx512
1942     fma3
1943     fma4
1944     mmx
1945     mmxext
1946     sse
1947     sse2
1948     sse3
1949     sse4
1950     sse42
1951     ssse3
1952     xop
1953 "
1954
1955 ARCH_EXT_LIST_PPC="
1956     altivec
1957     dcbzl
1958     ldbrx
1959     power8
1960     ppc4xx
1961     vsx
1962 "
1963
1964 ARCH_EXT_LIST_X86="
1965     $ARCH_EXT_LIST_X86_SIMD
1966     cpunop
1967     i686
1968 "
1969
1970 ARCH_EXT_LIST="
1971     $ARCH_EXT_LIST_ARM
1972     $ARCH_EXT_LIST_PPC
1973     $ARCH_EXT_LIST_X86
1974     $ARCH_EXT_LIST_MIPS
1975     $ARCH_EXT_LIST_LOONGSON
1976 "
1977
1978 ARCH_FEATURES="
1979     aligned_stack
1980     fast_64bit
1981     fast_clz
1982     fast_cmov
1983     local_aligned
1984     simd_align_16
1985     simd_align_32
1986     simd_align_64
1987 "
1988
1989 BUILTIN_LIST="
1990     atomic_cas_ptr
1991     machine_rw_barrier
1992     MemoryBarrier
1993     mm_empty
1994     rdtsc
1995     sem_timedwait
1996     sync_val_compare_and_swap
1997 "
1998 HAVE_LIST_CMDLINE="
1999     inline_asm
2000     symver
2001     x86asm
2002 "
2003
2004 HAVE_LIST_PUB="
2005     bigendian
2006     fast_unaligned
2007 "
2008
2009 HEADERS_LIST="
2010     arpa_inet_h
2011     asm_types_h
2012     cdio_paranoia_h
2013     cdio_paranoia_paranoia_h
2014     cuda_h
2015     dispatch_dispatch_h
2016     dev_bktr_ioctl_bt848_h
2017     dev_bktr_ioctl_meteor_h
2018     dev_ic_bt8xx_h
2019     dev_video_bktr_ioctl_bt848_h
2020     dev_video_meteor_ioctl_meteor_h
2021     direct_h
2022     dirent_h
2023     dxgidebug_h
2024     dxva_h
2025     ES2_gl_h
2026     gsm_h
2027     io_h
2028     linux_perf_event_h
2029     machine_ioctl_bt848_h
2030     machine_ioctl_meteor_h
2031     malloc_h
2032     opencv2_core_core_c_h
2033     OpenGL_gl3_h
2034     poll_h
2035     sys_param_h
2036     sys_resource_h
2037     sys_select_h
2038     sys_soundcard_h
2039     sys_time_h
2040     sys_un_h
2041     sys_videoio_h
2042     termios_h
2043     udplite_h
2044     unistd_h
2045     valgrind_valgrind_h
2046     windows_h
2047     winsock2_h
2048 "
2049
2050 INTRINSICS_LIST="
2051     intrinsics_neon
2052 "
2053
2054 COMPLEX_FUNCS="
2055     cabs
2056     cexp
2057 "
2058
2059 MATH_FUNCS="
2060     atanf
2061     atan2f
2062     cbrt
2063     cbrtf
2064     copysign
2065     cosf
2066     erf
2067     exp2
2068     exp2f
2069     expf
2070     hypot
2071     isfinite
2072     isinf
2073     isnan
2074     ldexpf
2075     llrint
2076     llrintf
2077     log2
2078     log2f
2079     log10f
2080     lrint
2081     lrintf
2082     powf
2083     rint
2084     round
2085     roundf
2086     sinf
2087     trunc
2088     truncf
2089 "
2090
2091 SYSTEM_FEATURES="
2092     dos_paths
2093     libc_msvcrt
2094     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2095     section_data_rel_ro
2096     threads
2097     uwp
2098     winrt
2099 "
2100
2101 SYSTEM_FUNCS="
2102     access
2103     aligned_malloc
2104     arc4random
2105     clock_gettime
2106     closesocket
2107     CommandLineToArgvW
2108     fcntl
2109     getaddrinfo
2110     gethrtime
2111     getopt
2112     GetProcessAffinityMask
2113     GetProcessMemoryInfo
2114     GetProcessTimes
2115     getrusage
2116     GetSystemTimeAsFileTime
2117     gettimeofday
2118     glob
2119     glXGetProcAddress
2120     gmtime_r
2121     inet_aton
2122     isatty
2123     kbhit
2124     localtime_r
2125     lstat
2126     lzo1x_999_compress
2127     mach_absolute_time
2128     MapViewOfFile
2129     memalign
2130     mkstemp
2131     mmap
2132     mprotect
2133     nanosleep
2134     PeekNamedPipe
2135     posix_memalign
2136     pthread_cancel
2137     sched_getaffinity
2138     SecItemImport
2139     SetConsoleTextAttribute
2140     SetConsoleCtrlHandler
2141     setmode
2142     setrlimit
2143     Sleep
2144     strerror_r
2145     sysconf
2146     sysctl
2147     usleep
2148     UTGetOSTypeFromString
2149     VirtualAlloc
2150     wglGetProcAddress
2151 "
2152
2153 SYSTEM_LIBRARIES="
2154     bcrypt
2155     vaapi_drm
2156     vaapi_x11
2157     vdpau_x11
2158 "
2159
2160 TOOLCHAIN_FEATURES="
2161     as_arch_directive
2162     as_dn_directive
2163     as_fpu_directive
2164     as_func
2165     as_object_arch
2166     asm_mod_q
2167     blocks_extension
2168     ebp_available
2169     ebx_available
2170     gnu_as
2171     gnu_windres
2172     ibm_asm
2173     inline_asm_direct_symbol_refs
2174     inline_asm_labels
2175     inline_asm_nonlocal_labels
2176     pragma_deprecated
2177     rsync_contimeout
2178     symver_asm_label
2179     symver_gnu_asm
2180     vfp_args
2181     xform_asm
2182     xmm_clobbers
2183 "
2184
2185 TYPES_LIST="
2186     kCMVideoCodecType_HEVC
2187     socklen_t
2188     struct_addrinfo
2189     struct_group_source_req
2190     struct_ip_mreq_source
2191     struct_ipv6_mreq
2192     struct_msghdr_msg_flags
2193     struct_pollfd
2194     struct_rusage_ru_maxrss
2195     struct_sctp_event_subscribe
2196     struct_sockaddr_in6
2197     struct_sockaddr_sa_len
2198     struct_sockaddr_storage
2199     struct_stat_st_mtim_tv_nsec
2200     struct_v4l2_frmivalenum_discrete
2201 "
2202
2203 HAVE_LIST="
2204     $ARCH_EXT_LIST
2205     $(add_suffix _external $ARCH_EXT_LIST)
2206     $(add_suffix _inline   $ARCH_EXT_LIST)
2207     $ARCH_FEATURES
2208     $BUILTIN_LIST
2209     $COMPLEX_FUNCS
2210     $HAVE_LIST_CMDLINE
2211     $HAVE_LIST_PUB
2212     $HEADERS_LIST
2213     $INTRINSICS_LIST
2214     $MATH_FUNCS
2215     $SYSTEM_FEATURES
2216     $SYSTEM_FUNCS
2217     $SYSTEM_LIBRARIES
2218     $THREADS_LIST
2219     $TOOLCHAIN_FEATURES
2220     $TYPES_LIST
2221     makeinfo
2222     makeinfo_html
2223     opencl_d3d11
2224     opencl_drm_arm
2225     opencl_drm_beignet
2226     opencl_dxva2
2227     opencl_vaapi_beignet
2228     opencl_vaapi_intel_media
2229     perl
2230     pod2man
2231     texi2html
2232 "
2233
2234 # options emitted with CONFIG_ prefix but not available on the command line
2235 CONFIG_EXTRA="
2236     aandcttables
2237     ac3dsp
2238     adts_header
2239     audio_frame_queue
2240     audiodsp
2241     blockdsp
2242     bswapdsp
2243     cabac
2244     cbs
2245     cbs_h264
2246     cbs_h265
2247     cbs_mpeg2
2248     cbs_vp9
2249     dirac_parse
2250     dnn
2251     dvprofile
2252     exif
2253     faandct
2254     faanidct
2255     fdctdsp
2256     flacdsp
2257     fmtconvert
2258     frame_thread_encoder
2259     g722dsp
2260     golomb
2261     gplv3
2262     h263dsp
2263     h264chroma
2264     h264dsp
2265     h264parse
2266     h264pred
2267     h264qpel
2268     hevcparse
2269     hpeldsp
2270     huffman
2271     huffyuvdsp
2272     huffyuvencdsp
2273     idctdsp
2274     iirfilter
2275     mdct15
2276     intrax8
2277     iso_media
2278     ividsp
2279     jpegtables
2280     lgplv3
2281     libx262
2282     llauddsp
2283     llviddsp
2284     llvidencdsp
2285     lpc
2286     lzf
2287     me_cmp
2288     mpeg_er
2289     mpegaudio
2290     mpegaudiodsp
2291     mpegaudioheader
2292     mpegvideo
2293     mpegvideoenc
2294     mss34dsp
2295     pixblockdsp
2296     qpeldsp
2297     qsv
2298     qsvdec
2299     qsvenc
2300     qsvvpp
2301     rangecoder
2302     riffdec
2303     riffenc
2304     rtpdec
2305     rtpenc_chain
2306     rv34dsp
2307     sinewin
2308     snappy
2309     srtp
2310     startcode
2311     texturedsp
2312     texturedspenc
2313     tpeldsp
2314     vaapi_1
2315     vaapi_encode
2316     vc1dsp
2317     videodsp
2318     vp3dsp
2319     vp56dsp
2320     vp8dsp
2321     wma_freqs
2322     wmv2dsp
2323 "
2324
2325 CMDLINE_SELECT="
2326     $ARCH_EXT_LIST
2327     $CONFIG_LIST
2328     $HAVE_LIST_CMDLINE
2329     $THREADS_LIST
2330     asm
2331     cross_compile
2332     debug
2333     extra_warnings
2334     logging
2335     lto
2336     optimizations
2337     rpath
2338     stripping
2339 "
2340
2341 PATHS_LIST="
2342     bindir
2343     datadir
2344     docdir
2345     incdir
2346     libdir
2347     mandir
2348     pkgconfigdir
2349     prefix
2350     shlibdir
2351     install_name_dir
2352 "
2353
2354 CMDLINE_SET="
2355     $PATHS_LIST
2356     ar
2357     arch
2358     as
2359     assert_level
2360     build_suffix
2361     cc
2362     objcc
2363     cpu
2364     cross_prefix
2365     custom_allocator
2366     cxx
2367     dep_cc
2368     doxygen
2369     env
2370     extra_version
2371     gas
2372     host_cc
2373     host_cflags
2374     host_extralibs
2375     host_ld
2376     host_ldflags
2377     host_os
2378     ignore_tests
2379     install
2380     ld
2381     ln_s
2382     logfile
2383     malloc_prefix
2384     nm
2385     optflags
2386     nvcc
2387     nvccflags
2388     pkg_config
2389     pkg_config_flags
2390     progs_suffix
2391     random_seed
2392     ranlib
2393     samples
2394     strip
2395     sws_max_filter_size
2396     sysinclude
2397     sysroot
2398     target_exec
2399     target_os
2400     target_path
2401     target_samples
2402     tempprefix
2403     toolchain
2404     valgrind
2405     x86asmexe
2406 "
2407
2408 CMDLINE_APPEND="
2409     extra_cflags
2410     extra_cxxflags
2411     extra_objcflags
2412     host_cppflags
2413 "
2414
2415 # code dependency declarations
2416
2417 # architecture extensions
2418
2419 armv5te_deps="arm"
2420 armv6_deps="arm"
2421 armv6t2_deps="arm"
2422 armv8_deps="aarch64"
2423 neon_deps_any="aarch64 arm"
2424 intrinsics_neon_deps="neon"
2425 vfp_deps_any="aarch64 arm"
2426 vfpv3_deps="vfp"
2427 setend_deps="arm"
2428
2429 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2430
2431 altivec_deps="ppc"
2432 dcbzl_deps="ppc"
2433 ldbrx_deps="ppc"
2434 ppc4xx_deps="ppc"
2435 vsx_deps="altivec"
2436 power8_deps="vsx"
2437
2438 loongson2_deps="mips"
2439 loongson3_deps="mips"
2440 mips32r2_deps="mips"
2441 mips32r5_deps="mips"
2442 mips32r6_deps="mips"
2443 mips64r2_deps="mips"
2444 mips64r6_deps="mips"
2445 mipsfpu_deps="mips"
2446 mipsdsp_deps="mips"
2447 mipsdspr2_deps="mips"
2448 mmi_deps="mips"
2449 msa_deps="mipsfpu"
2450
2451 cpunop_deps="i686"
2452 x86_64_select="i686"
2453 x86_64_suggest="fast_cmov"
2454
2455 amd3dnow_deps="mmx"
2456 amd3dnowext_deps="amd3dnow"
2457 i686_deps="x86"
2458 mmx_deps="x86"
2459 mmxext_deps="mmx"
2460 sse_deps="mmxext"
2461 sse2_deps="sse"
2462 sse3_deps="sse2"
2463 ssse3_deps="sse3"
2464 sse4_deps="ssse3"
2465 sse42_deps="sse4"
2466 aesni_deps="sse42"
2467 avx_deps="sse42"
2468 xop_deps="avx"
2469 fma3_deps="avx"
2470 fma4_deps="avx"
2471 avx2_deps="avx"
2472 avx512_deps="avx2"
2473
2474 mmx_external_deps="x86asm"
2475 mmx_inline_deps="inline_asm x86"
2476 mmx_suggest="mmx_external mmx_inline"
2477
2478 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2479     eval dep=\$${ext}_deps
2480     eval ${ext}_external_deps='"${dep}_external"'
2481     eval ${ext}_inline_deps='"${dep}_inline"'
2482     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2483 done
2484
2485 aligned_stack_if_any="aarch64 ppc x86"
2486 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2487 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2488 fast_unaligned_if_any="aarch64 ppc x86"
2489 simd_align_16_if_any="altivec neon sse"
2490 simd_align_32_if_any="avx"
2491 simd_align_64_if_any="avx512"
2492
2493 # system capabilities
2494 linux_perf_deps="linux_perf_event_h"
2495 symver_if_any="symver_asm_label symver_gnu_asm"
2496 valgrind_backtrace_conflict="optimizations"
2497 valgrind_backtrace_deps="valgrind_valgrind_h"
2498
2499 # threading support
2500 atomics_gcc_if="sync_val_compare_and_swap"
2501 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2502 atomics_win32_if="MemoryBarrier"
2503 atomics_native_if_any="$ATOMICS_LIST"
2504 w32threads_deps="atomics_native"
2505 threads_if_any="$THREADS_LIST"
2506
2507 # subsystems
2508 cbs_h264_select="cbs golomb"
2509 cbs_h265_select="cbs golomb"
2510 cbs_mpeg2_select="cbs"
2511 cbs_vp9_select="cbs"
2512 dct_select="rdft"
2513 dirac_parse_select="golomb"
2514 dnn_suggest="libtensorflow"
2515 error_resilience_select="me_cmp"
2516 faandct_deps="faan"
2517 faandct_select="fdctdsp"
2518 faanidct_deps="faan"
2519 faanidct_select="idctdsp"
2520 h264dsp_select="startcode"
2521 hevcparse_select="golomb"
2522 frame_thread_encoder_deps="encoders threads"
2523 intrax8_select="blockdsp idctdsp"
2524 mdct_select="fft"
2525 mdct15_select="fft"
2526 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2527 mpeg_er_select="error_resilience"
2528 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2529 mpegaudiodsp_select="dct"
2530 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2531 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2532 vc1dsp_select="h264chroma qpeldsp startcode"
2533 rdft_select="fft"
2534
2535 # decoders / encoders
2536 aac_decoder_select="adts_header mdct15 mdct sinewin"
2537 aac_fixed_decoder_select="adts_header mdct sinewin"
2538 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2539 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2540 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2541 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2542 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2543 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2544 adpcm_g722_decoder_select="g722dsp"
2545 adpcm_g722_encoder_select="g722dsp"
2546 aic_decoder_select="golomb idctdsp"
2547 alac_encoder_select="lpc"
2548 als_decoder_select="bswapdsp"
2549 amrnb_decoder_select="lsp"
2550 amrwb_decoder_select="lsp"
2551 amv_decoder_select="sp5x_decoder exif"
2552 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2553 ape_decoder_select="bswapdsp llauddsp"
2554 apng_decoder_deps="zlib"
2555 apng_encoder_deps="zlib"
2556 apng_encoder_select="llvidencdsp"
2557 aptx_decoder_select="audio_frame_queue"
2558 aptx_encoder_select="audio_frame_queue"
2559 aptx_hd_decoder_select="audio_frame_queue"
2560 aptx_hd_encoder_select="audio_frame_queue"
2561 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2562 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2563 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2564 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2565 atrac1_decoder_select="mdct sinewin"
2566 atrac3_decoder_select="mdct"
2567 atrac3p_decoder_select="mdct sinewin"
2568 atrac9_decoder_select="mdct"
2569 avrn_decoder_select="exif jpegtables"
2570 bink_decoder_select="blockdsp hpeldsp"
2571 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2572 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2573 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2574 clearvideo_decoder_select="idctdsp"
2575 cllc_decoder_select="bswapdsp"
2576 comfortnoise_encoder_select="lpc"
2577 cook_decoder_select="audiodsp mdct sinewin"
2578 cscd_decoder_select="lzo"
2579 cscd_decoder_suggest="zlib"
2580 dca_decoder_select="mdct"
2581 dds_decoder_select="texturedsp"
2582 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2583 dnxhd_decoder_select="blockdsp idctdsp"
2584 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2585 dolby_e_decoder_select="mdct"
2586 dvvideo_decoder_select="dvprofile idctdsp"
2587 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2588 dxa_decoder_deps="zlib"
2589 dxv_decoder_select="lzf texturedsp"
2590 eac3_decoder_select="ac3_decoder"
2591 eac3_encoder_select="ac3_encoder"
2592 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2593 eatgq_decoder_select="aandcttables"
2594 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2595 exr_decoder_deps="zlib"
2596 ffv1_decoder_select="rangecoder"
2597 ffv1_encoder_select="rangecoder"
2598 ffvhuff_decoder_select="huffyuv_decoder"
2599 ffvhuff_encoder_select="huffyuv_encoder"
2600 fic_decoder_select="golomb"
2601 flac_decoder_select="flacdsp"
2602 flac_encoder_select="bswapdsp flacdsp lpc"
2603 flashsv2_decoder_deps="zlib"
2604 flashsv2_encoder_deps="zlib"
2605 flashsv_decoder_deps="zlib"
2606 flashsv_encoder_deps="zlib"
2607 flv_decoder_select="h263_decoder"
2608 flv_encoder_select="h263_encoder"
2609 fourxm_decoder_select="blockdsp bswapdsp"
2610 fraps_decoder_select="bswapdsp huffman"
2611 g2m_decoder_deps="zlib"
2612 g2m_decoder_select="blockdsp idctdsp jpegtables"
2613 g729_decoder_select="audiodsp"
2614 h261_decoder_select="mpegvideo"
2615 h261_encoder_select="aandcttables mpegvideoenc"
2616 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2617 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2618 h263i_decoder_select="h263_decoder"
2619 h263p_decoder_select="h263_decoder"
2620 h263p_encoder_select="h263_encoder"
2621 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2622 h264_decoder_suggest="error_resilience"
2623 hap_decoder_select="snappy texturedsp"
2624 hap_encoder_deps="libsnappy"
2625 hap_encoder_select="texturedspenc"
2626 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2627 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2628 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2629 iac_decoder_select="imc_decoder"
2630 imc_decoder_select="bswapdsp fft mdct sinewin"
2631 indeo3_decoder_select="hpeldsp"
2632 indeo4_decoder_select="ividsp"
2633 indeo5_decoder_select="ividsp"
2634 interplay_video_decoder_select="hpeldsp"
2635 jpegls_decoder_select="mjpeg_decoder"
2636 jv_decoder_select="blockdsp"
2637 lagarith_decoder_select="llviddsp"
2638 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2639 magicyuv_decoder_select="llviddsp"
2640 magicyuv_encoder_select="llvidencdsp"
2641 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2642 metasound_decoder_select="lsp mdct sinewin"
2643 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2644 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2645 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2646 mjpegb_decoder_select="mjpeg_decoder"
2647 mlp_decoder_select="mlp_parser"
2648 mlp_encoder_select="lpc"
2649 motionpixels_decoder_select="bswapdsp"
2650 mp1_decoder_select="mpegaudio"
2651 mp1float_decoder_select="mpegaudio"
2652 mp2_decoder_select="mpegaudio"
2653 mp2float_decoder_select="mpegaudio"
2654 mp3_decoder_select="mpegaudio"
2655 mp3adu_decoder_select="mpegaudio"
2656 mp3adufloat_decoder_select="mpegaudio"
2657 mp3float_decoder_select="mpegaudio"
2658 mp3on4_decoder_select="mpegaudio"
2659 mp3on4float_decoder_select="mpegaudio"
2660 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2661 mpc8_decoder_select="mpegaudiodsp"
2662 mpegvideo_decoder_select="mpegvideo"
2663 mpeg1video_decoder_select="mpegvideo"
2664 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2665 mpeg2video_decoder_select="mpegvideo"
2666 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2667 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2668 mpeg4_encoder_select="h263_encoder"
2669 msa1_decoder_select="mss34dsp"
2670 mscc_decoder_deps="zlib"
2671 msmpeg4v1_decoder_select="h263_decoder"
2672 msmpeg4v2_decoder_select="h263_decoder"
2673 msmpeg4v2_encoder_select="h263_encoder"
2674 msmpeg4v3_decoder_select="h263_decoder"
2675 msmpeg4v3_encoder_select="h263_encoder"
2676 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2677 mts2_decoder_select="mss34dsp"
2678 mxpeg_decoder_select="mjpeg_decoder"
2679 nellymoser_decoder_select="mdct sinewin"
2680 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2681 nuv_decoder_select="idctdsp lzo"
2682 on2avc_decoder_select="mdct"
2683 opus_decoder_deps="swresample"
2684 opus_decoder_select="mdct15"
2685 opus_encoder_select="audio_frame_queue mdct15"
2686 png_decoder_deps="zlib"
2687 png_encoder_deps="zlib"
2688 png_encoder_select="llvidencdsp"
2689 prores_decoder_select="blockdsp idctdsp"
2690 prores_encoder_select="fdctdsp"
2691 qcelp_decoder_select="lsp"
2692 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2693 ra_144_decoder_select="audiodsp"
2694 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2695 ralf_decoder_select="golomb"
2696 rawvideo_decoder_select="bswapdsp"
2697 rscc_decoder_deps="zlib"
2698 rtjpeg_decoder_select="me_cmp"
2699 rv10_decoder_select="h263_decoder"
2700 rv10_encoder_select="h263_encoder"
2701 rv20_decoder_select="h263_decoder"
2702 rv20_encoder_select="h263_encoder"
2703 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2704 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2705 screenpresso_decoder_deps="zlib"
2706 shorten_decoder_select="bswapdsp"
2707 sipr_decoder_select="lsp"
2708 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2709 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2710 sonic_decoder_select="golomb rangecoder"
2711 sonic_encoder_select="golomb rangecoder"
2712 sonic_ls_encoder_select="golomb rangecoder"
2713 sp5x_decoder_select="mjpeg_decoder"
2714 srgc_decoder_deps="zlib"
2715 svq1_decoder_select="hpeldsp"
2716 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2717 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2718 svq3_decoder_suggest="zlib"
2719 tak_decoder_select="audiodsp"
2720 tdsc_decoder_deps="zlib"
2721 tdsc_decoder_select="mjpeg_decoder"
2722 theora_decoder_select="vp3_decoder"
2723 thp_decoder_select="mjpeg_decoder"
2724 tiff_decoder_suggest="zlib lzma"
2725 tiff_encoder_suggest="zlib"
2726 truehd_decoder_select="mlp_parser"
2727 truehd_encoder_select="lpc"
2728 truemotion2_decoder_select="bswapdsp"
2729 truespeech_decoder_select="bswapdsp"
2730 tscc_decoder_deps="zlib"
2731 twinvq_decoder_select="mdct lsp sinewin"
2732 txd_decoder_select="texturedsp"
2733 utvideo_decoder_select="bswapdsp llviddsp"
2734 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2735 vble_decoder_select="llviddsp"
2736 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2737 vc1image_decoder_select="vc1_decoder"
2738 vorbis_decoder_select="mdct"
2739 vorbis_encoder_select="audio_frame_queue mdct"
2740 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2741 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2742 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2743 vp6a_decoder_select="vp6_decoder"
2744 vp6f_decoder_select="vp6_decoder"
2745 vp7_decoder_select="h264pred videodsp vp8dsp"
2746 vp8_decoder_select="h264pred videodsp vp8dsp"
2747 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2748 webp_decoder_select="vp8_decoder exif"
2749 wmalossless_decoder_select="llauddsp"
2750 wmapro_decoder_select="mdct sinewin wma_freqs"
2751 wmav1_decoder_select="mdct sinewin wma_freqs"
2752 wmav1_encoder_select="mdct sinewin wma_freqs"
2753 wmav2_decoder_select="mdct sinewin wma_freqs"
2754 wmav2_encoder_select="mdct sinewin wma_freqs"
2755 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2756 wmv1_decoder_select="h263_decoder"
2757 wmv1_encoder_select="h263_encoder"
2758 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2759 wmv2_encoder_select="h263_encoder wmv2dsp"
2760 wmv3_decoder_select="vc1_decoder"
2761 wmv3image_decoder_select="wmv3_decoder"
2762 xma1_decoder_select="wmapro_decoder"
2763 xma2_decoder_select="wmapro_decoder"
2764 zerocodec_decoder_deps="zlib"
2765 zlib_decoder_deps="zlib"
2766 zlib_encoder_deps="zlib"
2767 zmbv_decoder_deps="zlib"
2768 zmbv_encoder_deps="zlib"
2769
2770 # hardware accelerators
2771 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2772 cuda_deps="ffnvcodec"
2773 cuvid_deps="ffnvcodec"
2774 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2775 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2776 ffnvcodec_deps_any="libdl LoadLibrary"
2777 nvdec_deps="ffnvcodec"
2778 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2779 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2780 xvmc_deps="X11_extensions_XvMClib_h"
2781
2782 h263_vaapi_hwaccel_deps="vaapi"
2783 h263_vaapi_hwaccel_select="h263_decoder"
2784 h263_videotoolbox_hwaccel_deps="videotoolbox"
2785 h263_videotoolbox_hwaccel_select="h263_decoder"
2786 h264_d3d11va_hwaccel_deps="d3d11va"
2787 h264_d3d11va_hwaccel_select="h264_decoder"
2788 h264_d3d11va2_hwaccel_deps="d3d11va"
2789 h264_d3d11va2_hwaccel_select="h264_decoder"
2790 h264_dxva2_hwaccel_deps="dxva2"
2791 h264_dxva2_hwaccel_select="h264_decoder"
2792 h264_nvdec_hwaccel_deps="nvdec"
2793 h264_nvdec_hwaccel_select="h264_decoder"
2794 h264_vaapi_hwaccel_deps="vaapi"
2795 h264_vaapi_hwaccel_select="h264_decoder"
2796 h264_vdpau_hwaccel_deps="vdpau"
2797 h264_vdpau_hwaccel_select="h264_decoder"
2798 h264_videotoolbox_hwaccel_deps="videotoolbox"
2799 h264_videotoolbox_hwaccel_select="h264_decoder"
2800 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2801 hevc_d3d11va_hwaccel_select="hevc_decoder"
2802 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2803 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2804 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2805 hevc_dxva2_hwaccel_select="hevc_decoder"
2806 hevc_nvdec_hwaccel_deps="nvdec"
2807 hevc_nvdec_hwaccel_select="hevc_decoder"
2808 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2809 hevc_vaapi_hwaccel_select="hevc_decoder"
2810 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2811 hevc_vdpau_hwaccel_select="hevc_decoder"
2812 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2813 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2814 mjpeg_nvdec_hwaccel_deps="nvdec"
2815 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2816 mjpeg_vaapi_hwaccel_deps="vaapi"
2817 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2818 mpeg_xvmc_hwaccel_deps="xvmc"
2819 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2820 mpeg1_nvdec_hwaccel_deps="nvdec"
2821 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2822 mpeg1_vdpau_hwaccel_deps="vdpau"
2823 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2824 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2825 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2826 mpeg1_xvmc_hwaccel_deps="xvmc"
2827 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2828 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2829 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2830 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2831 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2832 mpeg2_dxva2_hwaccel_deps="dxva2"
2833 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2834 mpeg2_nvdec_hwaccel_deps="nvdec"
2835 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2836 mpeg2_vaapi_hwaccel_deps="vaapi"
2837 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2838 mpeg2_vdpau_hwaccel_deps="vdpau"
2839 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2840 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2841 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2842 mpeg2_xvmc_hwaccel_deps="xvmc"
2843 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2844 mpeg4_nvdec_hwaccel_deps="nvdec"
2845 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2846 mpeg4_vaapi_hwaccel_deps="vaapi"
2847 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2848 mpeg4_vdpau_hwaccel_deps="vdpau"
2849 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2850 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2851 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2852 vc1_d3d11va_hwaccel_deps="d3d11va"
2853 vc1_d3d11va_hwaccel_select="vc1_decoder"
2854 vc1_d3d11va2_hwaccel_deps="d3d11va"
2855 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2856 vc1_dxva2_hwaccel_deps="dxva2"
2857 vc1_dxva2_hwaccel_select="vc1_decoder"
2858 vc1_nvdec_hwaccel_deps="nvdec"
2859 vc1_nvdec_hwaccel_select="vc1_decoder"
2860 vc1_vaapi_hwaccel_deps="vaapi"
2861 vc1_vaapi_hwaccel_select="vc1_decoder"
2862 vc1_vdpau_hwaccel_deps="vdpau"
2863 vc1_vdpau_hwaccel_select="vc1_decoder"
2864 vp8_nvdec_hwaccel_deps="nvdec"
2865 vp8_nvdec_hwaccel_select="vp8_decoder"
2866 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2867 vp8_vaapi_hwaccel_select="vp8_decoder"
2868 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2869 vp9_d3d11va_hwaccel_select="vp9_decoder"
2870 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2871 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2872 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2873 vp9_dxva2_hwaccel_select="vp9_decoder"
2874 vp9_nvdec_hwaccel_deps="nvdec"
2875 vp9_nvdec_hwaccel_select="vp9_decoder"
2876 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2877 vp9_vaapi_hwaccel_select="vp9_decoder"
2878 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2879 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2880 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2881 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2882 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2883 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2884
2885 # hardware-accelerated codecs
2886 omx_deps="libdl pthreads"
2887 omx_rpi_select="omx"
2888 qsv_deps="libmfx"
2889 qsvdec_select="qsv"
2890 qsvenc_select="qsv"
2891 qsvvpp_select="qsv"
2892 vaapi_encode_deps="vaapi"
2893 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2894
2895 hwupload_cuda_filter_deps="ffnvcodec"
2896 scale_npp_filter_deps="ffnvcodec libnpp"
2897 scale_cuda_filter_deps="cuda_sdk"
2898 thumbnail_cuda_filter_deps="cuda_sdk"
2899
2900 amf_deps_any="libdl LoadLibrary"
2901 nvenc_deps="ffnvcodec"
2902 nvenc_deps_any="libdl LoadLibrary"
2903 nvenc_encoder_deps="nvenc"
2904
2905 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2906 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2907 h264_amf_encoder_deps="amf"
2908 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2909 h264_cuvid_decoder_deps="cuvid"
2910 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2911 h264_mediacodec_decoder_deps="mediacodec"
2912 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2913 h264_mmal_decoder_deps="mmal"
2914 h264_nvenc_encoder_deps="nvenc"
2915 h264_omx_encoder_deps="omx"
2916 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2917 h264_qsv_encoder_select="qsvenc"
2918 h264_rkmpp_decoder_deps="rkmpp"
2919 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2920 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2921 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2922 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2923 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2924 hevc_amf_encoder_deps="amf"
2925 hevc_cuvid_decoder_deps="cuvid"
2926 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2927 hevc_mediacodec_decoder_deps="mediacodec"
2928 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2929 hevc_nvenc_encoder_deps="nvenc"
2930 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2931 hevc_qsv_encoder_select="hevcparse qsvenc"
2932 hevc_rkmpp_decoder_deps="rkmpp"
2933 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2934 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2935 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2936 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2937 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2938 mjpeg_cuvid_decoder_deps="cuvid"
2939 mjpeg_qsv_encoder_deps="libmfx"
2940 mjpeg_qsv_encoder_select="qsvenc"
2941 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2942 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2943 mpeg1_cuvid_decoder_deps="cuvid"
2944 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2945 mpeg2_crystalhd_decoder_select="crystalhd"
2946 mpeg2_cuvid_decoder_deps="cuvid"
2947 mpeg2_mmal_decoder_deps="mmal"
2948 mpeg2_mediacodec_decoder_deps="mediacodec"
2949 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2950 mpeg2_qsv_encoder_select="qsvenc"
2951 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2952 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2953 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2954 mpeg4_crystalhd_decoder_select="crystalhd"
2955 mpeg4_cuvid_decoder_deps="cuvid"
2956 mpeg4_mediacodec_decoder_deps="mediacodec"
2957 mpeg4_mmal_decoder_deps="mmal"
2958 mpeg4_omx_encoder_deps="omx"
2959 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2960 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2961 msmpeg4_crystalhd_decoder_select="crystalhd"
2962 nvenc_h264_encoder_select="h264_nvenc_encoder"
2963 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2964 vc1_crystalhd_decoder_select="crystalhd"
2965 vc1_cuvid_decoder_deps="cuvid"
2966 vc1_mmal_decoder_deps="mmal"
2967 vc1_qsv_decoder_select="qsvdec vc1_parser"
2968 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2969 vp8_cuvid_decoder_deps="cuvid"
2970 vp8_mediacodec_decoder_deps="mediacodec"
2971 vp8_qsv_decoder_select="qsvdec vp8_parser"
2972 vp8_rkmpp_decoder_deps="rkmpp"
2973 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2974 vp8_vaapi_encoder_select="vaapi_encode"
2975 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2976 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2977 vp9_cuvid_decoder_deps="cuvid"
2978 vp9_mediacodec_decoder_deps="mediacodec"
2979 vp9_rkmpp_decoder_deps="rkmpp"
2980 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2981 vp9_vaapi_encoder_select="vaapi_encode"
2982 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2983 wmv3_crystalhd_decoder_select="crystalhd"
2984
2985 # parsers
2986 aac_parser_select="adts_header"
2987 h264_parser_select="golomb h264dsp h264parse"
2988 hevc_parser_select="hevcparse"
2989 mpegaudio_parser_select="mpegaudioheader"
2990 mpegvideo_parser_select="mpegvideo"
2991 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2992 vc1_parser_select="vc1dsp"
2993
2994 # bitstream_filters
2995 aac_adtstoasc_bsf_select="adts_header"
2996 eac3_core_bsf_select="ac3_parser"
2997 filter_units_bsf_select="cbs"
2998 h264_metadata_bsf_deps="const_nan"
2999 h264_metadata_bsf_select="cbs_h264"
3000 h264_redundant_pps_bsf_select="cbs_h264"
3001 hevc_metadata_bsf_select="cbs_h265"
3002 mjpeg2jpeg_bsf_select="jpegtables"
3003 mpeg2_metadata_bsf_select="cbs_mpeg2"
3004 trace_headers_bsf_select="cbs"
3005 vp9_metadata_bsf_select="cbs_vp9"
3006
3007 # external libraries
3008 aac_at_decoder_deps="audiotoolbox"
3009 aac_at_decoder_select="aac_adtstoasc_bsf"
3010 ac3_at_decoder_deps="audiotoolbox"
3011 ac3_at_decoder_select="ac3_parser"
3012 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3013 alac_at_decoder_deps="audiotoolbox"
3014 amr_nb_at_decoder_deps="audiotoolbox"
3015 avisynth_deps_any="libdl LoadLibrary"
3016 avisynth_demuxer_deps="avisynth"
3017 avisynth_demuxer_select="riffdec"
3018 eac3_at_decoder_deps="audiotoolbox"
3019 eac3_at_decoder_select="ac3_parser"
3020 gsm_ms_at_decoder_deps="audiotoolbox"
3021 ilbc_at_decoder_deps="audiotoolbox"
3022 mp1_at_decoder_deps="audiotoolbox"
3023 mp2_at_decoder_deps="audiotoolbox"
3024 mp3_at_decoder_deps="audiotoolbox"
3025 mp1_at_decoder_select="mpegaudioheader"
3026 mp2_at_decoder_select="mpegaudioheader"
3027 mp3_at_decoder_select="mpegaudioheader"
3028 pcm_alaw_at_decoder_deps="audiotoolbox"
3029 pcm_mulaw_at_decoder_deps="audiotoolbox"
3030 qdmc_at_decoder_deps="audiotoolbox"
3031 qdm2_at_decoder_deps="audiotoolbox"
3032 aac_at_encoder_deps="audiotoolbox"
3033 aac_at_encoder_select="audio_frame_queue"
3034 alac_at_encoder_deps="audiotoolbox"
3035 alac_at_encoder_select="audio_frame_queue"
3036 ilbc_at_encoder_deps="audiotoolbox"
3037 ilbc_at_encoder_select="audio_frame_queue"
3038 pcm_alaw_at_encoder_deps="audiotoolbox"
3039 pcm_alaw_at_encoder_select="audio_frame_queue"
3040 pcm_mulaw_at_encoder_deps="audiotoolbox"
3041 pcm_mulaw_at_encoder_select="audio_frame_queue"
3042 chromaprint_muxer_deps="chromaprint"
3043 h264_videotoolbox_encoder_deps="pthreads"
3044 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3045 hevc_videotoolbox_encoder_deps="pthreads"
3046 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3047 libaom_av1_decoder_deps="libaom"
3048 libaom_av1_encoder_deps="libaom"
3049 libcelt_decoder_deps="libcelt"
3050 libcodec2_decoder_deps="libcodec2"
3051 libcodec2_encoder_deps="libcodec2"
3052 libfdk_aac_decoder_deps="libfdk_aac"
3053 libfdk_aac_encoder_deps="libfdk_aac"
3054 libfdk_aac_encoder_select="audio_frame_queue"
3055 libgme_demuxer_deps="libgme"
3056 libgsm_decoder_deps="libgsm"
3057 libgsm_encoder_deps="libgsm"
3058 libgsm_ms_decoder_deps="libgsm"
3059 libgsm_ms_encoder_deps="libgsm"
3060 libilbc_decoder_deps="libilbc"
3061 libilbc_encoder_deps="libilbc"
3062 libkvazaar_encoder_deps="libkvazaar"
3063 libmodplug_demuxer_deps="libmodplug"
3064 libmp3lame_encoder_deps="libmp3lame"
3065 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3066 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3067 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3068 libopencore_amrnb_encoder_select="audio_frame_queue"
3069 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3070 libopenh264_decoder_deps="libopenh264"
3071 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3072 libopenh264_encoder_deps="libopenh264"
3073 libopenjpeg_decoder_deps="libopenjpeg"
3074 libopenjpeg_encoder_deps="libopenjpeg"
3075 libopenmpt_demuxer_deps="libopenmpt"
3076 libopus_decoder_deps="libopus"
3077 libopus_encoder_deps="libopus"
3078 libopus_encoder_select="audio_frame_queue"
3079 librsvg_decoder_deps="librsvg"
3080 libshine_encoder_deps="libshine"
3081 libshine_encoder_select="audio_frame_queue"
3082 libspeex_decoder_deps="libspeex"
3083 libspeex_encoder_deps="libspeex"
3084 libspeex_encoder_select="audio_frame_queue"
3085 libtheora_encoder_deps="libtheora"
3086 libtwolame_encoder_deps="libtwolame"
3087 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3088 libvorbis_decoder_deps="libvorbis"
3089 libvorbis_encoder_deps="libvorbis libvorbisenc"
3090 libvorbis_encoder_select="audio_frame_queue"
3091 libvpx_vp8_decoder_deps="libvpx"
3092 libvpx_vp8_encoder_deps="libvpx"
3093 libvpx_vp9_decoder_deps="libvpx"
3094 libvpx_vp9_encoder_deps="libvpx"
3095 libwavpack_encoder_deps="libwavpack"
3096 libwavpack_encoder_select="audio_frame_queue"
3097 libwebp_encoder_deps="libwebp"
3098 libwebp_anim_encoder_deps="libwebp"
3099 libx262_encoder_deps="libx262"
3100 libx264_encoder_deps="libx264"
3101 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3102 libx264rgb_encoder_select="libx264_encoder"
3103 libx265_encoder_deps="libx265"
3104 libxavs_encoder_deps="libxavs"
3105 libxvid_encoder_deps="libxvid"
3106 libzvbi_teletext_decoder_deps="libzvbi"
3107 vapoursynth_demuxer_deps="vapoursynth"
3108 videotoolbox_suggest="coreservices"
3109 videotoolbox_deps="corefoundation coremedia corevideo"
3110 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3111
3112 # demuxers / muxers
3113 ac3_demuxer_select="ac3_parser"
3114 aiff_muxer_select="iso_media"
3115 asf_demuxer_select="riffdec"
3116 asf_o_demuxer_select="riffdec"
3117 asf_muxer_select="riffenc"
3118 asf_stream_muxer_select="asf_muxer"
3119 avi_demuxer_select="iso_media riffdec exif"
3120 avi_muxer_select="riffenc"
3121 caf_demuxer_select="iso_media riffdec"
3122 caf_muxer_select="iso_media"
3123 dash_muxer_select="mp4_muxer"
3124 dash_demuxer_deps="libxml2"
3125 dirac_demuxer_select="dirac_parser"
3126 dts_demuxer_select="dca_parser"
3127 dtshd_demuxer_select="dca_parser"
3128 dv_demuxer_select="dvprofile"
3129 dv_muxer_select="dvprofile"
3130 dxa_demuxer_select="riffdec"
3131 eac3_demuxer_select="ac3_parser"
3132 f4v_muxer_select="mov_muxer"
3133 fifo_muxer_deps="threads"
3134 flac_demuxer_select="flac_parser"
3135 hds_muxer_select="flv_muxer"
3136 hls_muxer_select="mpegts_muxer"
3137 hls_muxer_suggest="gcrypt openssl"
3138 image2_alias_pix_demuxer_select="image2_demuxer"
3139 image2_brender_pix_demuxer_select="image2_demuxer"
3140 ipod_muxer_select="mov_muxer"
3141 ismv_muxer_select="mov_muxer"
3142 matroska_audio_muxer_select="matroska_muxer"
3143 matroska_demuxer_select="iso_media riffdec"
3144 matroska_demuxer_suggest="bzlib lzo zlib"
3145 matroska_muxer_select="iso_media riffenc"
3146 mmf_muxer_select="riffenc"
3147 mov_demuxer_select="iso_media riffdec"
3148 mov_demuxer_suggest="zlib"
3149 mov_muxer_select="iso_media riffenc rtpenc_chain"
3150 mp3_demuxer_select="mpegaudio_parser"
3151 mp3_muxer_select="mpegaudioheader"
3152 mp4_muxer_select="mov_muxer"
3153 mpegts_demuxer_select="iso_media"
3154 mpegts_muxer_select="adts_muxer latm_muxer"
3155 mpegtsraw_demuxer_select="mpegts_demuxer"
3156 mxf_d10_muxer_select="mxf_muxer"
3157 mxf_opatom_muxer_select="mxf_muxer"
3158 nut_muxer_select="riffenc"
3159 nuv_demuxer_select="riffdec"
3160 oga_muxer_select="ogg_muxer"
3161 ogg_demuxer_select="dirac_parse"
3162 ogv_muxer_select="ogg_muxer"
3163 opus_muxer_select="ogg_muxer"
3164 psp_muxer_select="mov_muxer"
3165 rtp_demuxer_select="sdp_demuxer"
3166 rtp_muxer_select="golomb"
3167 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3168 rtsp_demuxer_select="http_protocol rtpdec"
3169 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3170 sap_demuxer_select="sdp_demuxer"
3171 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3172 sdp_demuxer_select="rtpdec"
3173 smoothstreaming_muxer_select="ismv_muxer"
3174 spdif_demuxer_select="adts_header"
3175 spdif_muxer_select="adts_header"
3176 spx_muxer_select="ogg_muxer"
3177 swf_demuxer_suggest="zlib"
3178 tak_demuxer_select="tak_parser"
3179 tg2_muxer_select="mov_muxer"
3180 tgp_muxer_select="mov_muxer"
3181 vobsub_demuxer_select="mpegps_demuxer"
3182 w64_demuxer_select="wav_demuxer"
3183 w64_muxer_select="wav_muxer"
3184 wav_demuxer_select="riffdec"
3185 wav_muxer_select="riffenc"
3186 webm_muxer_select="iso_media riffenc"
3187 webm_dash_manifest_demuxer_select="matroska_demuxer"
3188 wtv_demuxer_select="mpegts_demuxer riffdec"
3189 wtv_muxer_select="mpegts_muxer riffenc"
3190 xmv_demuxer_select="riffdec"
3191 xwma_demuxer_select="riffdec"
3192
3193 # indevs / outdevs
3194 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3195 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3196 alsa_indev_deps="alsa"
3197 alsa_outdev_deps="alsa"
3198 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3199 avfoundation_indev_suggest="coregraphics applicationservices"
3200 avfoundation_indev_extralibs="-framework Foundation"
3201 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3202 caca_outdev_deps="libcaca"
3203 decklink_deps_any="libdl LoadLibrary"
3204 decklink_indev_deps="decklink threads"
3205 decklink_indev_extralibs="-lstdc++"
3206 decklink_outdev_deps="decklink threads"
3207 decklink_outdev_extralibs="-lstdc++"
3208 libndi_newtek_indev_deps="libndi_newtek"
3209 libndi_newtek_indev_extralibs="-lndi"
3210 libndi_newtek_outdev_deps="libndi_newtek"
3211 libndi_newtek_outdev_extralibs="-lndi"
3212 dshow_indev_deps="IBaseFilter"
3213 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3214 fbdev_indev_deps="linux_fb_h"
3215 fbdev_outdev_deps="linux_fb_h"
3216 gdigrab_indev_deps="CreateDIBSection"
3217 gdigrab_indev_extralibs="-lgdi32"
3218 gdigrab_indev_select="bmp_decoder"
3219 iec61883_indev_deps="libiec61883"
3220 jack_indev_deps="libjack"
3221 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3222 kmsgrab_indev_deps="libdrm"
3223 lavfi_indev_deps="avfilter"
3224 libcdio_indev_deps="libcdio"
3225 libdc1394_indev_deps="libdc1394"
3226 openal_indev_deps="openal"
3227 opengl_outdev_deps="opengl"
3228 oss_indev_deps_any="sys_soundcard_h"
3229 oss_outdev_deps_any="sys_soundcard_h"
3230 pulse_indev_deps="libpulse"
3231 pulse_outdev_deps="libpulse"
3232 sdl2_outdev_deps="sdl2"
3233 sndio_indev_deps="sndio"
3234 sndio_outdev_deps="sndio"
3235 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3236 v4l2_indev_suggest="libv4l2"
3237 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3238 v4l2_outdev_suggest="libv4l2"
3239 vfwcap_indev_deps="vfw32 vfwcap_defines"
3240 xcbgrab_indev_deps="libxcb"
3241 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3242 xv_outdev_deps="xlib"
3243
3244 # protocols
3245 async_protocol_deps="threads"
3246 bluray_protocol_deps="libbluray"
3247 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3248 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3249 ffrtmpcrypt_protocol_select="tcp_protocol"
3250 ffrtmphttp_protocol_conflict="librtmp_protocol"
3251 ffrtmphttp_protocol_select="http_protocol"
3252 ftp_protocol_select="tcp_protocol"
3253 gopher_protocol_select="network"
3254 http_protocol_select="tcp_protocol"
3255 http_protocol_suggest="zlib"
3256 httpproxy_protocol_select="tcp_protocol"
3257 httpproxy_protocol_suggest="zlib"
3258 https_protocol_select="tls_protocol"
3259 https_protocol_suggest="zlib"
3260 icecast_protocol_select="http_protocol"
3261 librtmp_protocol_deps="librtmp"
3262 librtmpe_protocol_deps="librtmp"
3263 librtmps_protocol_deps="librtmp"
3264 librtmpt_protocol_deps="librtmp"
3265 librtmpte_protocol_deps="librtmp"
3266 libsmbclient_protocol_deps="libsmbclient gplv3"
3267 libssh_protocol_deps="libssh"
3268 libtls_conflict="openssl gnutls mbedtls"
3269 mmsh_protocol_select="http_protocol"
3270 mmst_protocol_select="network"
3271 libsrt_protocol_deps="libsrt"
3272 libsrt_protocol_select="network"
3273 rtmp_protocol_conflict="librtmp_protocol"
3274 rtmp_protocol_select="tcp_protocol"
3275 rtmp_protocol_suggest="zlib"
3276 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3277 rtmpe_protocol_suggest="zlib"
3278 rtmps_protocol_conflict="librtmp_protocol"
3279 rtmps_protocol_select="tls_protocol"
3280 rtmps_protocol_suggest="zlib"
3281 rtmpt_protocol_select="ffrtmphttp_protocol"
3282 rtmpt_protocol_suggest="zlib"
3283 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3284 rtmpte_protocol_suggest="zlib"
3285 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3286 rtmpts_protocol_suggest="zlib"
3287 rtp_protocol_select="udp_protocol"
3288 schannel_conflict="openssl gnutls libtls mbedtls"
3289 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3290 sctp_protocol_select="network"
3291 securetransport_conflict="openssl gnutls libtls mbedtls"
3292 srtp_protocol_select="rtp_protocol srtp"
3293 tcp_protocol_select="network"
3294 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3295 tls_protocol_select="tcp_protocol"
3296 udp_protocol_select="network"
3297 udplite_protocol_select="network"
3298 unix_protocol_deps="sys_un_h"
3299 unix_protocol_select="network"
3300
3301 # filters
3302 afftfilt_filter_deps="avcodec"
3303 afftfilt_filter_select="fft"
3304 afir_filter_deps="avcodec"
3305 afir_filter_select="fft"
3306 amovie_filter_deps="avcodec avformat"
3307 aresample_filter_deps="swresample"
3308 ass_filter_deps="libass"
3309 atempo_filter_deps="avcodec"
3310 atempo_filter_select="rdft"
3311 avgblur_opencl_filter_deps="opencl"
3312 azmq_filter_deps="libzmq"
3313 blackframe_filter_deps="gpl"
3314 boxblur_filter_deps="gpl"
3315 boxblur_opencl_filter_deps="opencl gpl"
3316 bs2b_filter_deps="libbs2b"
3317 colormatrix_filter_deps="gpl"
3318 convolution_opencl_filter_deps="opencl"
3319 convolve_filter_deps="avcodec"
3320 convolve_filter_select="fft"
3321 coreimage_filter_deps="coreimage appkit"
3322 coreimage_filter_extralibs="-framework OpenGL"
3323 coreimagesrc_filter_deps="coreimage appkit"
3324 coreimagesrc_filter_extralibs="-framework OpenGL"
3325 cover_rect_filter_deps="avcodec avformat gpl"
3326 cropdetect_filter_deps="gpl"
3327 deconvolve_filter_deps="avcodec"
3328 deconvolve_filter_select="fft"
3329 deinterlace_qsv_filter_deps="libmfx"
3330 deinterlace_vaapi_filter_deps="vaapi"
3331 delogo_filter_deps="gpl"
3332 denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3333 deshake_filter_select="pixelutils"
3334 drawtext_filter_deps="libfreetype"
3335 drawtext_filter_suggest="libfontconfig libfribidi"
3336 elbg_filter_deps="avcodec"
3337 eq_filter_deps="gpl"
3338 fftfilt_filter_deps="avcodec"
3339 fftfilt_filter_select="rdft"
3340 fftdnoiz_filter_deps="avcodec"
3341 fftdnoiz_filter_select="fft"
3342 find_rect_filter_deps="avcodec avformat gpl"
3343 firequalizer_filter_deps="avcodec"
3344 firequalizer_filter_select="rdft"
3345 flite_filter_deps="libflite"
3346 framerate_filter_select="pixelutils"
3347 frei0r_filter_deps="frei0r libdl"
3348 frei0r_src_filter_deps="frei0r libdl"
3349 fspp_filter_deps="gpl"
3350 geq_filter_deps="gpl"
3351 histeq_filter_deps="gpl"
3352 hqdn3d_filter_deps="gpl"
3353 interlace_filter_deps="gpl"
3354 kerndeint_filter_deps="gpl"
3355 ladspa_filter_deps="ladspa libdl"
3356 lv2_filter_deps="lv2"
3357 mcdeint_filter_deps="avcodec gpl"
3358 movie_filter_deps="avcodec avformat"
3359 mpdecimate_filter_deps="gpl"
3360 mpdecimate_filter_select="pixelutils"
3361 mptestsrc_filter_deps="gpl"
3362 negate_filter_deps="lut_filter"
3363 nnedi_filter_deps="gpl"
3364 ocr_filter_deps="libtesseract"
3365 ocv_filter_deps="libopencv"
3366 openclsrc_filter_deps="opencl"
3367 overlay_opencl_filter_deps="opencl"
3368 overlay_qsv_filter_deps="libmfx"
3369 overlay_qsv_filter_select="qsvvpp"
3370 owdenoise_filter_deps="gpl"
3371 pan_filter_deps="swresample"
3372 perspective_filter_deps="gpl"
3373 phase_filter_deps="gpl"
3374 pp7_filter_deps="gpl"
3375 pp_filter_deps="gpl postproc"
3376 prewitt_opencl_filter_deps="opencl"
3377 procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3378 program_opencl_filter_deps="opencl"
3379 pullup_filter_deps="gpl"
3380 removelogo_filter_deps="avcodec avformat swscale"
3381 repeatfields_filter_deps="gpl"
3382 resample_filter_deps="avresample"
3383 roberts_opencl_filter_deps="opencl"
3384 rubberband_filter_deps="librubberband"
3385 sab_filter_deps="gpl swscale"
3386 scale2ref_filter_deps="swscale"
3387 scale_filter_deps="swscale"
3388 scale_qsv_filter_deps="libmfx"
3389 select_filter_select="pixelutils"
3390 sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3391 showcqt_filter_deps="avcodec avformat swscale"
3392 showcqt_filter_suggest="libfontconfig libfreetype"
3393 showcqt_filter_select="fft"
3394 showfreqs_filter_deps="avcodec"
3395 showfreqs_filter_select="fft"
3396 showspectrum_filter_deps="avcodec"
3397 showspectrum_filter_select="fft"
3398 showspectrumpic_filter_deps="avcodec"
3399 showspectrumpic_filter_select="fft"
3400 signature_filter_deps="gpl avcodec avformat"
3401 smartblur_filter_deps="gpl swscale"
3402 sobel_opencl_filter_deps="opencl"
3403 sofalizer_filter_deps="libmysofa avcodec"
3404 sofalizer_filter_select="fft"
3405 spectrumsynth_filter_deps="avcodec"
3406 spectrumsynth_filter_select="fft"
3407 spp_filter_deps="gpl avcodec"
3408 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3409 sr_filter_deps="avformat swscale"
3410 sr_filter_select="dnn"
3411 stereo3d_filter_deps="gpl"
3412 subtitles_filter_deps="avformat avcodec libass"
3413 super2xsai_filter_deps="gpl"
3414 pixfmts_super2xsai_test_deps="super2xsai_filter"
3415 tinterlace_filter_deps="gpl"
3416 tinterlace_merge_test_deps="tinterlace_filter"
3417 tinterlace_pad_test_deps="tinterlace_filter"
3418 tonemap_filter_deps="const_nan"
3419 tonemap_opencl_filter_deps="opencl const_nan"
3420 unsharp_opencl_filter_deps="opencl"
3421 uspp_filter_deps="gpl avcodec"
3422 vaguedenoiser_filter_deps="gpl"
3423 vidstabdetect_filter_deps="libvidstab"
3424 vidstabtransform_filter_deps="libvidstab"
3425 libvmaf_filter_deps="libvmaf pthreads"
3426 zmq_filter_deps="libzmq"
3427 zoompan_filter_deps="swscale"
3428 zscale_filter_deps="libzimg const_nan"
3429 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3430 vpp_qsv_filter_deps="libmfx"
3431 vpp_qsv_filter_select="qsvvpp"
3432
3433 # examples
3434 avio_dir_cmd_deps="avformat avutil"
3435 avio_reading_deps="avformat avcodec avutil"
3436 decode_audio_example_deps="avcodec avutil"
3437 decode_video_example_deps="avcodec avutil"
3438 demuxing_decoding_example_deps="avcodec avformat avutil"
3439 encode_audio_example_deps="avcodec avutil"
3440 encode_video_example_deps="avcodec avutil"
3441 extract_mvs_example_deps="avcodec avformat avutil"
3442 filter_audio_example_deps="avfilter avutil"
3443 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3444 filtering_video_example_deps="avfilter avcodec avformat avutil"
3445 http_multiclient_example_deps="avformat avutil fork"
3446 hw_decode_example_deps="avcodec avformat avutil"
3447 metadata_example_deps="avformat avutil"
3448 muxing_example_deps="avcodec avformat avutil swscale"
3449 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3450 remuxing_example_deps="avcodec avformat avutil"
3451 resampling_audio_example_deps="avutil swresample"
3452 scaling_video_example_deps="avutil swscale"
3453 transcode_aac_example_deps="avcodec avformat swresample"
3454 transcoding_example_deps="avfilter avcodec avformat avutil"
3455 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3456 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3457
3458 # EXTRALIBS_LIST
3459 cpu_init_extralibs="pthreads_extralibs"
3460 cws2fws_extralibs="zlib_extralibs"
3461
3462 # libraries, in linking order
3463 avcodec_deps="avutil"
3464 avcodec_suggest="libm"
3465 avcodec_select="null_bsf"
3466 avdevice_deps="avformat avcodec avutil"
3467 avdevice_suggest="libm"
3468 avfilter_deps="avutil"
3469 avfilter_suggest="libm"
3470 avformat_deps="avcodec avutil"
3471 avformat_suggest="libm network zlib"
3472 avresample_deps="avutil"
3473 avresample_suggest="libm"
3474 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3475 postproc_deps="avutil gpl"
3476 postproc_suggest="libm"
3477 swresample_deps="avutil"
3478 swresample_suggest="libm libsoxr"
3479 swscale_deps="avutil"
3480 swscale_suggest="libm"
3481
3482 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3483 avfilter_extralibs="pthreads_extralibs"
3484 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3485
3486 # programs
3487 ffmpeg_deps="avcodec avfilter avformat"
3488 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3489                null_filter
3490                trim_filter"
3491 ffmpeg_suggest="ole32 psapi shell32"
3492 ffplay_deps="avcodec avformat swscale swresample sdl2"
3493 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3494 ffplay_suggest="shell32"
3495 ffprobe_deps="avcodec avformat"
3496 ffprobe_suggest="shell32"
3497
3498 # documentation
3499 podpages_deps="perl"
3500 manpages_deps="perl pod2man"
3501 htmlpages_deps="perl"
3502 htmlpages_deps_any="makeinfo_html texi2html"
3503 txtpages_deps="perl makeinfo"
3504 doc_deps_any="manpages htmlpages podpages txtpages"
3505
3506 # default parameters
3507
3508 logfile="ffbuild/config.log"
3509
3510 # installation paths
3511 prefix_default="/usr/local"
3512 bindir_default='${prefix}/bin'
3513 datadir_default='${prefix}/share/ffmpeg'
3514 docdir_default='${prefix}/share/doc/ffmpeg'
3515 incdir_default='${prefix}/include'
3516 libdir_default='${prefix}/lib'
3517 mandir_default='${prefix}/share/man'
3518
3519 # toolchain
3520 ar_default="ar"
3521 cc_default="gcc"
3522 cxx_default="g++"
3523 host_cc_default="gcc"
3524 doxygen_default="doxygen"
3525 install="install"
3526 ln_s_default="ln -s -f"
3527 nm_default="nm -g"
3528 pkg_config_default=pkg-config
3529 ranlib_default="ranlib"
3530 strip_default="strip"
3531 version_script='--version-script'
3532 objformat="elf32"
3533 x86asmexe_default="nasm"
3534 windres_default="windres"
3535 nvcc_default="nvcc"
3536 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3537 striptype="direct"
3538
3539 # OS
3540 target_os_default=$(tolower $(uname -s))
3541 host_os=$target_os_default
3542
3543 # machine
3544 if test "$target_os_default" = aix; then
3545     arch_default=$(uname -p)
3546     strip_default="strip -X32_64"
3547 else
3548     arch_default=$(uname -m)
3549 fi
3550 cpu="generic"
3551 intrinsics="none"
3552
3553 # configurable options
3554 enable $PROGRAM_LIST
3555 enable $DOCUMENT_LIST
3556 enable $EXAMPLE_LIST
3557 enable $(filter_out avresample $LIBRARY_LIST)
3558 enable stripping
3559
3560 enable asm
3561 enable debug
3562 enable doc
3563 enable faan faandct faanidct
3564 enable optimizations
3565 enable runtime_cpudetect
3566 enable safe_bitstream_reader
3567 enable static
3568 enable swscale_alpha
3569 enable valgrind_backtrace
3570
3571 sws_max_filter_size_default=256
3572 set_default sws_max_filter_size
3573
3574 # internal components are enabled by default
3575 enable $EXTRALIBS_LIST
3576
3577 # Avoid external, non-system, libraries getting enabled by dependency resolution
3578 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3579
3580 # build settings
3581 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3582 LIBPREF="lib"
3583 LIBSUF=".a"
3584 FULLNAME='$(NAME)$(BUILDSUF)'
3585 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3586 SLIBPREF="lib"
3587 SLIBSUF=".so"
3588 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3589 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3590 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3591 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3592 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3593 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3594 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3595
3596 asflags_filter=echo
3597 cflags_filter=echo
3598 ldflags_filter=echo
3599
3600 AS_C='-c'
3601 AS_O='-o $@'
3602 CC_C='-c'
3603 CC_E='-E -o $@'
3604 CC_O='-o $@'
3605 CXX_C='-c'
3606 CXX_O='-o $@'
3607 OBJCC_C='-c'
3608 OBJCC_E='-E -o $@'
3609 OBJCC_O='-o $@'
3610 X86ASM_O='-o $@'
3611 LD_O='-o $@'
3612 LD_LIB='-l%'
3613 LD_PATH='-L'
3614 HOSTCC_C='-c'
3615 HOSTCC_E='-E -o $@'
3616 HOSTCC_O='-o $@'
3617 HOSTLD_O='-o $@'
3618 NVCC_C='-c'
3619 NVCC_O='-o $@'
3620
3621 host_extralibs='-lm'
3622 host_cflags_filter=echo
3623 host_ldflags_filter=echo
3624
3625 target_path='$(CURDIR)'
3626
3627 # since the object filename is not given with the -MM flag, the compiler
3628 # is only able to print the basename, and we must add the path ourselves
3629 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3630 DEPFLAGS='-MM'
3631
3632 mkdir -p ffbuild
3633
3634 # find source path
3635 if test -f configure; then
3636     source_path=.
3637 else
3638     source_path=$(cd $(dirname "$0"); pwd)
3639     case "$source_path" in
3640         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3641     esac
3642     test -e "$source_path/config.h" &&
3643         die "Out of tree builds are impossible with config.h in source dir."
3644 fi
3645
3646 for v in "$@"; do
3647     r=${v#*=}
3648     l=${v%"$r"}
3649     r=$(sh_quote "$r")
3650     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3651 done
3652
3653 find_things_extern(){
3654     thing=$1
3655     pattern=$2
3656     file=$source_path/$3
3657     out=${4:-$thing}
3658     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3659 }
3660
3661 find_filters_extern(){
3662     file=$source_path/$1
3663     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file
3664     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file
3665 }
3666
3667 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3668 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3669 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3670 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3671 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3672 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3673 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3674 CODEC_LIST="
3675     $ENCODER_LIST
3676     $DECODER_LIST
3677 "
3678 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parser.c)
3679 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3680 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3681 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3682
3683 AVCODEC_COMPONENTS_LIST="
3684     $BSF_LIST
3685     $DECODER_LIST
3686     $ENCODER_LIST
3687     $HWACCEL_LIST
3688     $PARSER_LIST
3689 "
3690
3691 AVDEVICE_COMPONENTS_LIST="
3692     $INDEV_LIST
3693     $OUTDEV_LIST
3694 "
3695
3696 AVFILTER_COMPONENTS_LIST="
3697     $FILTER_LIST
3698 "
3699
3700 AVFORMAT_COMPONENTS_LIST="
3701     $DEMUXER_LIST
3702     $MUXER_LIST
3703     $PROTOCOL_LIST
3704 "
3705
3706 ALL_COMPONENTS="
3707     $AVCODEC_COMPONENTS_LIST
3708     $AVDEVICE_COMPONENTS_LIST
3709     $AVFILTER_COMPONENTS_LIST
3710     $AVFORMAT_COMPONENTS_LIST
3711 "
3712
3713 for n in $COMPONENT_LIST; do
3714     v=$(toupper ${n%s})_LIST
3715     eval enable \$$v
3716     eval ${n}_if_any="\$$v"
3717 done
3718
3719 enable $ARCH_EXT_LIST
3720
3721 die_unknown(){
3722     echo "Unknown option \"$1\"."
3723     echo "See $0 --help for available options."
3724     exit 1
3725 }
3726
3727 print_in_columns() {
3728     cols=$(expr $ncols / 24)
3729     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3730 }
3731
3732 show_list() {
3733     suffix=_$1
3734     shift
3735     echo $* | sed s/$suffix//g | print_in_columns
3736     exit 0
3737 }
3738
3739 rand_list(){
3740     IFS=', '
3741     set -- $*
3742     unset IFS
3743     for thing; do
3744         comp=${thing%:*}
3745         prob=${thing#$comp}
3746         prob=${prob#:}
3747         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3748         echo "prob ${prob:-0.5}"
3749         printf '%s\n' $comp
3750     done
3751 }
3752
3753 do_random(){
3754     action=$1
3755     shift
3756     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3757     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3758 }
3759
3760 for opt do
3761     optval="${opt#*=}"
3762     case "$opt" in
3763         --extra-ldflags=*)
3764             add_ldflags $optval
3765         ;;
3766         --extra-ldexeflags=*)
3767             add_ldexeflags $optval
3768         ;;
3769         --extra-ldsoflags=*)
3770             add_ldsoflags $optval
3771         ;;
3772         --extra-ldlibflags=*)
3773             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3774                  "removed in the future. Use --extra-ldsoflags instead."
3775             add_ldsoflags $optval
3776         ;;
3777         --extra-libs=*)
3778             add_extralibs $optval
3779         ;;
3780         --disable-devices)
3781             disable $INDEV_LIST $OUTDEV_LIST
3782         ;;
3783         --enable-debug=*)
3784             debuglevel="$optval"
3785         ;;
3786         --disable-programs)
3787             disable $PROGRAM_LIST
3788         ;;
3789         --disable-everything)
3790             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3791         ;;
3792         --disable-all)
3793             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3794             disable $LIBRARY_LIST $PROGRAM_LIST doc
3795             enable avutil
3796         ;;
3797         --enable-random|--disable-random)
3798             action=${opt%%-random}
3799             do_random ${action#--} $COMPONENT_LIST
3800         ;;
3801         --enable-random=*|--disable-random=*)
3802             action=${opt%%-random=*}
3803             do_random ${action#--} $optval
3804         ;;
3805         --enable-sdl)
3806             enable sdl2
3807         ;;
3808         --enable-*=*|--disable-*=*)
3809             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3810             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3811             eval list=\$$(toupper $thing)_LIST
3812             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3813             list=$(filter "$name" $list)
3814             [ "$list" = "" ] && warn "Option $opt did not match anything"
3815             $action $list
3816         ;;
3817         --enable-yasm|--disable-yasm)
3818             warn "The ${opt} option is only provided for compatibility and will be\n"\
3819                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3820             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3821         ;;
3822         --yasmexe=*)
3823             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3824                  "removed in the future. Use --x86asmexe instead."
3825             x86asmexe="$optval"
3826         ;;
3827         --enable-?*|--disable-?*)
3828             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3829             if is_in $option $COMPONENT_LIST; then
3830                 test $action = disable && action=unset
3831                 eval $action \$$(toupper ${option%s})_LIST
3832             elif is_in $option $CMDLINE_SELECT; then
3833                 $action $option
3834             else
3835                 die_unknown $opt
3836             fi
3837         ;;
3838         --list-*)
3839             NAME="${opt#--list-}"
3840             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3841             NAME=${NAME%s}
3842             eval show_list $NAME \$$(toupper $NAME)_LIST
3843         ;;
3844         --help|-h) show_help
3845         ;;
3846         --quiet|-q) quiet=yes
3847         ;;
3848         --fatal-warnings) enable fatal_warnings
3849         ;;
3850         --libfuzzer=*)
3851             libfuzzer_path="$optval"
3852         ;;
3853         *)
3854             optname="${opt%%=*}"
3855             optname="${optname#--}"
3856             optname=$(echo "$optname" | sed 's/-/_/g')
3857             if is_in $optname $CMDLINE_SET; then
3858                 eval $optname='$optval'
3859             elif is_in $optname $CMDLINE_APPEND; then
3860                 append $optname "$optval"
3861             else
3862                 die_unknown $opt
3863             fi
3864         ;;
3865     esac
3866 done
3867
3868 for e in $env; do
3869     eval "export $e"
3870 done
3871
3872 if disabled autodetect; then
3873
3874     # Unless iconv is explicitely disabled by the user, we still want to probe
3875     # for the iconv from the libc.
3876     disabled iconv || enable libc_iconv
3877
3878     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3879     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3880 fi
3881 # Mark specifically enabled, but normally autodetected libraries as requested.
3882 for lib in $AUTODETECT_LIBS; do
3883     enabled $lib && request $lib
3884 done
3885 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3886 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3887 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3888
3889 disabled logging && logfile=/dev/null
3890
3891 # command line configuration sanity checks
3892
3893 # we need to build at least one lib type
3894 if ! enabled_any static shared; then
3895     cat <<EOF
3896 At least one library type must be built.
3897 Specify --enable-static to build the static libraries or --enable-shared to
3898 build the shared libraries as well. To only build the shared libraries specify
3899 --disable-static in addition to --enable-shared.
3900 EOF
3901     exit 1
3902 fi
3903
3904 die_license_disabled() {
3905     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3906 }
3907
3908 die_license_disabled_gpl() {
3909     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3910 }
3911
3912 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3913 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3914
3915 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3916 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3917
3918 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3919
3920 if enabled nonfree; then
3921     license="nonfree and unredistributable"
3922 elif enabled gplv3; then
3923     license="GPL version 3 or later"
3924 elif enabled lgplv3; then
3925     license="LGPL version 3 or later"
3926 elif enabled gpl; then
3927     license="GPL version 2 or later"
3928 else
3929     license="LGPL version 2.1 or later"
3930 fi
3931
3932 enabled_all gnutls openssl &&
3933     die "GnuTLS and OpenSSL must not be enabled at the same time."
3934
3935 enabled_all gnutls mbedtls &&
3936     die "GnuTLS and mbedTLS must not be enabled at the same time."
3937
3938 enabled_all openssl mbedtls &&
3939     die "OpenSSL and mbedTLS must not be enabled at the same time."
3940
3941 # Disable all the library-specific components if the library itself
3942 # is disabled, see AVCODEC_LIST and following _LIST variables.
3943
3944 disable_components(){
3945     disabled ${1} && disable $(
3946         eval components="\$$(toupper ${1})_COMPONENTS"
3947         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3948     )
3949 }
3950
3951 map 'disable_components $v' $LIBRARY_LIST
3952
3953 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3954 set >> $logfile
3955
3956 test -n "$valgrind" && toolchain="valgrind-memcheck"
3957
3958 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  &&{
3959     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3960     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3961 }
3962
3963 case "$toolchain" in
3964     *-asan)
3965         cc_default="${toolchain%-asan}"
3966         add_cflags  -fsanitize=address
3967         add_ldflags -fsanitize=address
3968     ;;
3969     *-msan)
3970         cc_default="${toolchain%-msan}"
3971         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3972         add_ldflags -fsanitize=memory
3973     ;;
3974     *-tsan)
3975         cc_default="${toolchain%-tsan}"
3976         add_cflags  -fsanitize=thread
3977         add_ldflags -fsanitize=thread
3978         case "$toolchain" in
3979             gcc-tsan)
3980                 add_cflags  -fPIC
3981                 add_ldflags -fPIC
3982                 ;;
3983         esac
3984     ;;
3985     *-usan)
3986         cc_default="${toolchain%-usan}"
3987         add_cflags  -fsanitize=undefined
3988         add_ldflags -fsanitize=undefined
3989     ;;
3990     valgrind-*)
3991         target_exec_default="valgrind"
3992         case "$toolchain" in
3993             valgrind-massif)
3994                 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"
3995                 ;;
3996             valgrind-memcheck)
3997                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3998                 ;;
3999         esac
4000     ;;
4001     msvc)
4002         # Check whether the current MSVC version needs the C99 converter.
4003         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4004         # support enough of C99 to build ffmpeg. Default to the new
4005         # behaviour if the regexp was unable to match anything, since this
4006         # successfully parses the version number of existing supported
4007         # versions that require the converter (MSVC 2010 and 2012).
4008         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4009         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4010             cc_default="cl"
4011             cxx_default="cl"
4012         else
4013             die "Unsupported MSVC version (2013 or newer required)"
4014         fi
4015         ld_default="$source_path/compat/windows/mslink"
4016         nm_default="dumpbin -symbols"
4017         ar_default="lib"
4018         case "$arch" in
4019         aarch64|arm64)
4020             as_default="armasm64"
4021             ;;
4022         arm*)
4023             as_default="armasm"
4024             ;;
4025         esac
4026         target_os_default="win32"
4027         # Use a relative path for TMPDIR. This makes sure all the
4028         # ffconf temp files are written with a relative path, avoiding
4029         # issues with msys/win32 path conversion for MSVC parameters
4030         # such as -Fo<file> or -out:<file>.
4031         TMPDIR=.
4032     ;;
4033     icl)
4034         cc_default="icl"
4035         ld_default="xilink"
4036         nm_default="dumpbin -symbols"
4037         ar_default="xilib"
4038         target_os_default="win32"
4039         TMPDIR=.
4040     ;;
4041     gcov)
4042         add_cflags  -fprofile-arcs -ftest-coverage
4043         add_ldflags -fprofile-arcs -ftest-coverage
4044     ;;
4045     llvm-cov)
4046         add_cflags -fprofile-arcs -ftest-coverage
4047         add_ldflags --coverage
4048     ;;
4049     hardened)
4050         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4051         add_cflags   -fno-strict-overflow -fstack-protector-all
4052         add_ldflags  -Wl,-z,relro -Wl,-z,now
4053         add_cflags   -fPIE
4054         add_ldexeflags -fPIE -pie
4055     ;;
4056     ?*)
4057         die "Unknown toolchain $toolchain"
4058     ;;
4059 esac
4060
4061 if test -n "$cross_prefix"; then
4062     test -n "$arch" && test -n "$target_os" ||
4063         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4064     enable cross_compile
4065 fi
4066
4067 ar_default="${cross_prefix}${ar_default}"
4068 cc_default="${cross_prefix}${cc_default}"
4069 cxx_default="${cross_prefix}${cxx_default}"
4070 nm_default="${cross_prefix}${nm_default}"
4071 pkg_config_default="${cross_prefix}${pkg_config_default}"
4072 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4073     ranlib_default="${cross_prefix}${ranlib_default} -D"
4074 else
4075     ranlib_default="${cross_prefix}${ranlib_default}"
4076 fi
4077 strip_default="${cross_prefix}${strip_default}"
4078 windres_default="${cross_prefix}${windres_default}"
4079
4080 sysinclude_default="${sysroot}/usr/include"
4081
4082 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4083     target_exec target_os x86asmexe nvcc
4084 enabled cross_compile || host_cc_default=$cc
4085 set_default host_cc
4086
4087 pkg_config_fail_message=""
4088 if ! $pkg_config --version >/dev/null 2>&1; then
4089     warn "$pkg_config not found, library detection may fail."
4090     pkg_config=false
4091 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4092     pkg_config_fail_message="
4093 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4094 fi
4095
4096 if test $doxygen != $doxygen_default && \
4097   ! $doxygen --version >/dev/null 2>&1; then
4098     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4099 fi
4100
4101 exesuf() {
4102     case $1 in
4103         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4104     esac
4105 }
4106
4107 EXESUF=$(exesuf $target_os)
4108 HOSTEXESUF=$(exesuf $host_os)
4109
4110 # set temporary file name
4111 : ${TMPDIR:=$TEMPDIR}
4112 : ${TMPDIR:=$TMP}
4113 : ${TMPDIR:=/tmp}
4114
4115 if [ -n "$tempprefix" ] ; then
4116     mktemp(){
4117         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4118         echo "$tmpname"
4119         mkdir "$tmpname"
4120     }
4121 elif ! test_cmd mktemp -u XXXXXX; then
4122     # simple replacement for missing mktemp
4123     # NOT SAFE FOR GENERAL USE
4124     mktemp(){
4125         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4126         echo "$tmpname"
4127         mkdir "$tmpname"
4128     }
4129 fi
4130
4131 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4132     die "Unable to create temporary directory in $TMPDIR."
4133
4134 tmpfile(){
4135     tmp="${FFTMPDIR}/test"$2
4136     (set -C; exec > $tmp) 2> /dev/null ||
4137         die "Unable to create temporary file in $FFTMPDIR."
4138     eval $1=$tmp
4139 }
4140
4141 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4142 trap 'exit 2' INT
4143
4144 tmpfile TMPASM .asm
4145 tmpfile TMPC   .c
4146 tmpfile TMPCPP .cpp
4147 tmpfile TMPE   $EXESUF
4148 tmpfile TMPH   .h
4149 tmpfile TMPM   .m
4150 tmpfile TMPO   .o
4151 tmpfile TMPS   .S
4152 tmpfile TMPSH  .sh
4153 tmpfile TMPV   .ver
4154
4155 unset -f mktemp
4156
4157 chmod +x $TMPE
4158
4159 # make sure we can execute files in $TMPDIR
4160 cat > $TMPSH 2>> $logfile <<EOF
4161 #! /bin/sh
4162 EOF
4163 chmod +x $TMPSH >> $logfile 2>&1
4164 if ! $TMPSH >> $logfile 2>&1; then
4165     cat <<EOF
4166 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4167 variable to another directory and make sure that it is not mounted noexec.
4168 EOF
4169     die "Sanity test failed."
4170 fi
4171
4172 armasm_flags(){
4173     for flag; do
4174         case $flag in
4175             # Filter out MSVC cl.exe options from cflags that shouldn't
4176             # be passed to gas-preprocessor
4177             -M[TD]*)                                            ;;
4178             *)                  echo $flag                      ;;
4179         esac
4180    done
4181 }
4182
4183<