7f199c634d3d8ba9c6434752364a7901d615dc0e
[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 or libtls 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-libtesseract    enable Tesseract, needed for ocr filter [no]
263   --enable-libtheora       enable Theora encoding via libtheora [no]
264   --enable-libtls          enable LibreSSL (via libtls), needed for https support
265                            if openssl or gnutls is not used [no]
266   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
267   --enable-libv4l2         enable libv4l2/v4l-utils [no]
268   --enable-libvidstab      enable video stabilization using vid.stab [no]
269   --enable-libvmaf         enable vmaf filter via libvmaf [no]
270   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
271   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
272                            native implementation exists [no]
273   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
274   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
275   --enable-libwebp         enable WebP encoding via libwebp [no]
276   --enable-libx264         enable H.264 encoding via x264 [no]
277   --enable-libx265         enable HEVC encoding via x265 [no]
278   --enable-libxavs         enable AVS encoding via xavs [no]
279   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
280   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
281   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
282   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
283   --enable-libxvid         enable Xvid encoding via xvidcore,
284                            native MPEG-4/Xvid encoder exists [no]
285   --enable-libxml2         enable XML parsing using the C library libxml2 [no]
286   --enable-libzimg         enable z.lib, needed for zscale filter [no]
287   --enable-libzmq          enable message passing via libzmq [no]
288   --enable-libzvbi         enable teletext support via libzvbi [no]
289   --enable-lv2             enable LV2 audio filtering [no]
290   --disable-lzma           disable lzma [autodetect]
291   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
292   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
293   --enable-mediacodec      enable Android MediaCodec support [no]
294   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
295   --enable-openal          enable OpenAL 1.1 capture support [no]
296   --enable-opencl          enable OpenCL processing [no]
297   --enable-opengl          enable OpenGL rendering [no]
298   --enable-openssl         enable openssl, needed for https support
299                            if gnutls or libtls is not used [no]
300   --disable-sndio          disable sndio support [autodetect]
301   --disable-schannel       disable SChannel SSP, needed for TLS support on
302                            Windows if openssl and gnutls are not used [autodetect]
303   --disable-sdl2           disable sdl2 [autodetect]
304   --disable-securetransport disable Secure Transport, needed for TLS support
305                            on OSX if openssl and gnutls are not used [autodetect]
306   --disable-xlib           disable xlib [autodetect]
307   --disable-zlib           disable zlib [autodetect]
308
309   The following libraries provide various hardware acceleration features:
310   --disable-amf            disable AMF video encoding code [autodetect]
311   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
312   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
313   --disable-cuvid          disable Nvidia CUVID support [autodetect]
314   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
315   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
316   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
317   --enable-libdrm          enable DRM code (Linux) [no]
318   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
319   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
320   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
321   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
322   --disable-nvenc          disable Nvidia video encoding code [autodetect]
323   --enable-omx             enable OpenMAX IL code [no]
324   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
325   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
326   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
327   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
328   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
329   --disable-videotoolbox   disable VideoToolbox code [autodetect]
330
331 Toolchain options:
332   --arch=ARCH              select architecture [$arch]
333   --cpu=CPU                select the minimum required CPU (affects
334                            instruction selection, may crash on older CPUs)
335   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
336   --progs-suffix=SUFFIX    program name suffix []
337   --enable-cross-compile   assume a cross-compiler is used
338   --sysroot=PATH           root of cross-build tree
339   --sysinclude=PATH        location of cross-build system headers
340   --target-os=OS           compiler targets OS [$target_os]
341   --target-exec=CMD        command to run executables on target
342   --target-path=DIR        path to view of build directory on target
343   --target-samples=DIR     path to samples directory on target
344   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
345   --toolchain=NAME         set tool defaults according to NAME
346                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
347                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
348                            valgrind-massif, valgrind-memcheck,
349                            msvc, icl, gcov, llvm-cov, hardened)
350   --nm=NM                  use nm tool NM [$nm_default]
351   --ar=AR                  use archive tool AR [$ar_default]
352   --as=AS                  use assembler AS [$as_default]
353   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
354   --strip=STRIP            use strip tool STRIP [$strip_default]
355   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
356   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
357   --cc=CC                  use C compiler CC [$cc_default]
358   --cxx=CXX                use C compiler CXX [$cxx_default]
359   --objcc=OCC              use ObjC compiler OCC [$cc_default]
360   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
361   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
362   --ld=LD                  use linker LD [$ld_default]
363   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
364   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
365   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
366   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
367   --host-cc=HOSTCC         use host C compiler HOSTCC
368   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
369   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
370   --host-ld=HOSTLD         use host linker HOSTLD
371   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
372   --host-libs=HLIBS        use libs HLIBS when linking for host
373   --host-os=OS             compiler host OS [$target_os]
374   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
375   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
376   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
377   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
378   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
379   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
380   --extra-libs=ELIBS       add ELIBS [$ELIBS]
381   --extra-version=STRING   version string suffix []
382   --optflags=OPTFLAGS      override optimization-related compiler flags
383   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
384   --build-suffix=SUFFIX    library name suffix []
385   --enable-pic             build position-independent code
386   --enable-thumb           compile for Thumb instruction set
387   --enable-lto             use link-time optimization
388   --env="ENV=override"     override the environment variables
389
390 Advanced options (experts only):
391   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
392   --custom-allocator=NAME  use a supported custom allocator
393   --disable-symver         disable symbol versioning
394   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
395   --disable-safe-bitstream-reader
396                            disable buffer boundary checking in bitreaders
397                            (faster, but may crash)
398   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
399
400 Optimization options (experts only):
401   --disable-asm            disable all assembly optimizations
402   --disable-altivec        disable AltiVec optimizations
403   --disable-vsx            disable VSX optimizations
404   --disable-power8         disable POWER8 optimizations
405   --disable-amd3dnow       disable 3DNow! optimizations
406   --disable-amd3dnowext    disable 3DNow! extended optimizations
407   --disable-mmx            disable MMX optimizations
408   --disable-mmxext         disable MMXEXT optimizations
409   --disable-sse            disable SSE optimizations
410   --disable-sse2           disable SSE2 optimizations
411   --disable-sse3           disable SSE3 optimizations
412   --disable-ssse3          disable SSSE3 optimizations
413   --disable-sse4           disable SSE4 optimizations
414   --disable-sse42          disable SSE4.2 optimizations
415   --disable-avx            disable AVX optimizations
416   --disable-xop            disable XOP optimizations
417   --disable-fma3           disable FMA3 optimizations
418   --disable-fma4           disable FMA4 optimizations
419   --disable-avx2           disable AVX2 optimizations
420   --disable-avx512         disable AVX-512 optimizations
421   --disable-aesni          disable AESNI optimizations
422   --disable-armv5te        disable armv5te optimizations
423   --disable-armv6          disable armv6 optimizations
424   --disable-armv6t2        disable armv6t2 optimizations
425   --disable-vfp            disable VFP optimizations
426   --disable-neon           disable NEON optimizations
427   --disable-inline-asm     disable use of inline assembly
428   --disable-x86asm         disable use of standalone x86 assembly
429   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
430   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
431   --disable-msa            disable MSA optimizations
432   --disable-mipsfpu        disable floating point MIPS optimizations
433   --disable-mmi            disable Loongson SIMD optimizations
434   --disable-fast-unaligned consider unaligned accesses slow
435
436 Developer options (useful when working on FFmpeg itself):
437   --disable-debug          disable debugging symbols
438   --enable-debug=LEVEL     set the debug level [$debuglevel]
439   --disable-optimizations  disable compiler optimizations
440   --enable-extra-warnings  enable more compiler warnings
441   --disable-stripping      disable stripping of executables and shared libraries
442   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
443                            2 causes a slowdown at runtime.
444   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
445   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
446                            leaks and errors, using the specified valgrind binary.
447                            Cannot be combined with --target-exec
448   --enable-ftrapv          Trap arithmetic overflows
449   --samples=PATH           location of test samples for FATE, if not set use
450                            \$FATE_SAMPLES at make invocation time.
451   --enable-neon-clobber-test check NEON registers for clobbering (should be
452                            used only for debugging purposes)
453   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
454                            should be used only for debugging purposes)
455   --enable-random          randomly enable/disable components
456   --disable-random
457   --enable-random=LIST     randomly enable/disable specific components or
458   --disable-random=LIST    component groups. LIST is a comma-separated list
459                            of NAME[:PROB] entries where NAME is a component
460                            (group) and PROB the probability associated with
461                            NAME (default 0.5).
462   --random-seed=VALUE      seed value for --enable/disable-random
463   --disable-valgrind-backtrace do not print a backtrace under Valgrind
464                            (only applies to --disable-optimizations builds)
465   --enable-osfuzz          Enable building fuzzer tool
466   --libfuzzer=PATH         path to libfuzzer
467   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
468                            in the name) of tests whose result is ignored
469   --enable-linux-perf      enable Linux Performance Monitor API
470
471 NOTE: Object files are built at the place where configure is launched.
472 EOF
473   exit 0
474 }
475
476 if test -t 1 && which tput >/dev/null 2>&1; then
477     ncolors=$(tput colors)
478     if test -n "$ncolors" && test $ncolors -ge 8; then
479         bold_color=$(tput bold)
480         warn_color=$(tput setaf 3)
481         error_color=$(tput setaf 1)
482         reset_color=$(tput sgr0)
483     fi
484     # 72 used instead of 80 since that's the default of pr
485     ncols=$(tput cols)
486 fi
487 : ${ncols:=72}
488
489 log(){
490     echo "$@" >> $logfile
491 }
492
493 log_file(){
494     log BEGIN $1
495     pr -n -t $1 >> $logfile
496     log END $1
497 }
498
499 warn(){
500     log "WARNING: $*"
501     WARNINGS="${WARNINGS}WARNING: $*\n"
502 }
503
504 die(){
505     log "$@"
506     echo "$error_color$bold_color$@$reset_color"
507     cat <<EOF
508
509 If you think configure made a mistake, make sure you are using the latest
510 version from Git.  If the latest version fails, report the problem to the
511 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
512 EOF
513     if disabled logging; then
514         cat <<EOF
515 Rerun configure with logging enabled (do not use --disable-logging), and
516 include the log this produces with your report.
517 EOF
518     else
519         cat <<EOF
520 Include the log file "$logfile" produced by configure as this will help
521 solve the problem.
522 EOF
523     fi
524     exit 1
525 }
526
527 # Avoid locale weirdness, besides we really just want to translate ASCII.
528 toupper(){
529     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
530 }
531
532 tolower(){
533     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
534 }
535
536 c_escape(){
537     echo "$*" | sed 's/["\\]/\\\0/g'
538 }
539
540 sh_quote(){
541     v=$(echo "$1" | sed "s/'/'\\\\''/g")
542     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
543     echo "$v"
544 }
545
546 cleanws(){
547     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
548 }
549
550 filter(){
551     pat=$1
552     shift
553     for v; do
554         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
555     done
556 }
557
558 filter_out(){
559     pat=$1
560     shift
561     for v; do
562         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
563     done
564 }
565
566 map(){
567     m=$1
568     shift
569     for v; do eval $m; done
570 }
571
572 add_suffix(){
573     suffix=$1
574     shift
575     for v; do echo ${v}${suffix}; done
576 }
577
578 remove_suffix(){
579     suffix=$1
580     shift
581     for v; do echo ${v%$suffix}; done
582 }
583
584 set_all(){
585     value=$1
586     shift
587     for var in $*; do
588         eval $var=$value
589     done
590 }
591
592 set_weak(){
593     value=$1
594     shift
595     for var; do
596         eval : \${$var:=$value}
597     done
598 }
599
600 sanitize_var_name(){
601     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
602 }
603
604 set_sanitized(){
605     var=$1
606     shift
607     eval $(sanitize_var_name "$var")='$*'
608 }
609
610 get_sanitized(){
611     eval echo \$$(sanitize_var_name "$1")
612 }
613
614 pushvar(){
615     for pvar in $*; do
616         eval level=\${${pvar}_level:=0}
617         eval ${pvar}_${level}="\$$pvar"
618         eval ${pvar}_level=$(($level+1))
619     done
620 }
621
622 popvar(){
623     for pvar in $*; do
624         eval level=\${${pvar}_level:-0}
625         test $level = 0 && continue
626         eval level=$(($level-1))
627         eval $pvar="\${${pvar}_${level}}"
628         eval ${pvar}_level=$level
629         eval unset ${pvar}_${level}
630     done
631 }
632
633 request(){
634     for var in $*; do
635         eval ${var}_requested=yes
636         eval $var=
637     done
638 }
639
640 enable(){
641     set_all yes $*
642 }
643
644 disable(){
645     set_all no $*
646 }
647
648 enable_weak(){
649     set_weak yes $*
650 }
651
652 disable_weak(){
653     set_weak no $*
654 }
655
656 enable_sanitized(){
657     for var; do
658         enable $(sanitize_var_name $var)
659     done
660 }
661
662 disable_sanitized(){
663     for var; do
664         disable $(sanitize_var_name $var)
665     done
666 }
667
668 do_enable_deep(){
669     for var; do
670         enabled $var && continue
671         eval sel="\$${var}_select"
672         eval sgs="\$${var}_suggest"
673         pushvar var sgs
674         enable_deep $sel
675         popvar sgs
676         enable_deep_weak $sgs
677         popvar var
678     done
679 }
680
681 enable_deep(){
682     do_enable_deep $*
683     enable $*
684 }
685
686 enable_deep_weak(){
687     for var; do
688         disabled $var && continue
689         pushvar var
690         do_enable_deep $var
691         popvar var
692         enable_weak $var
693     done
694 }
695
696 requested(){
697     test "${1#!}" = "$1" && op="=" || op="!="
698     eval test "x\$${1#!}_requested" $op "xyes"
699 }
700
701 enabled(){
702     test "${1#!}" = "$1" && op="=" || op="!="
703     eval test "x\$${1#!}" $op "xyes"
704 }
705
706 disabled(){
707     test "${1#!}" = "$1" && op="=" || op="!="
708     eval test "x\$${1#!}" $op "xno"
709 }
710
711 enabled_all(){
712     for opt; do
713         enabled $opt || return 1
714     done
715 }
716
717 disabled_all(){
718     for opt; do
719         disabled $opt || return 1
720     done
721 }
722
723 enabled_any(){
724     for opt; do
725         enabled $opt && return 0
726     done
727 }
728
729 disabled_any(){
730     for opt; do
731         disabled $opt && return 0
732     done
733     return 1
734 }
735
736 set_default(){
737     for opt; do
738         eval : \${$opt:=\$${opt}_default}
739     done
740 }
741
742 is_in(){
743     value=$1
744     shift
745     for var in $*; do
746         [ $var = $value ] && return 0
747     done
748     return 1
749 }
750
751 check_deps(){
752     for cfg; do
753         enabled ${cfg}_checking && die "Circular dependency for $cfg."
754         disabled ${cfg}_checking && continue
755         enable ${cfg}_checking
756
757         eval dep_all="\$${cfg}_deps"
758         eval dep_any="\$${cfg}_deps_any"
759         eval dep_con="\$${cfg}_conflict"
760         eval dep_sel="\$${cfg}_select"
761         eval dep_sgs="\$${cfg}_suggest"
762         eval dep_ifa="\$${cfg}_if"
763         eval dep_ifn="\$${cfg}_if_any"
764
765         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
766         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
767         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
768
769         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
770         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
771         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
772         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
773         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
774         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
775
776         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
777
778         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
779             # filter out library deps, these do not belong in extralibs
780             is_in $dep $LIBRARY_LIST && continue
781             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
782         done
783
784         disable ${cfg}_checking
785     done
786 }
787
788 print_config(){
789     pfx=$1
790     files=$2
791     shift 2
792     map 'eval echo "$v \${$v:-no}"' "$@" |
793     awk "BEGIN { split(\"$files\", files) }
794         {
795             c = \"$pfx\" toupper(\$1);
796             v = \$2;
797             sub(/yes/, 1, v);
798             sub(/no/,  0, v);
799             for (f in files) {
800                 file = files[f];
801                 if (file ~ /\\.h\$/) {
802                     printf(\"#define %s %d\\n\", c, v) >>file;
803                 } else if (file ~ /\\.asm\$/) {
804                     printf(\"%%define %s %d\\n\", c, v) >>file;
805                 } else if (file ~ /\\.mak\$/) {
806                     n = -v ? \"\" : \"!\";
807                     printf(\"%s%s=yes\\n\", n, c) >>file;
808                 } else if (file ~ /\\.texi\$/) {
809                     pre = -v ? \"\" : \"@c \";
810                     yesno = \$2;
811                     c2 = tolower(c);
812                     gsub(/_/, \"-\", c2);
813                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
814                 }
815             }
816         }"
817 }
818
819 print_enabled(){
820     suf=$1
821     shift
822     for v; do
823         enabled $v && printf "%s\n" ${v%$suf}
824     done
825 }
826
827 append(){
828     var=$1
829     shift
830     eval "$var=\"\$$var $*\""
831 }
832
833 prepend(){
834     var=$1
835     shift
836     eval "$var=\"$* \$$var\""
837 }
838
839 unique(){
840     var=$1
841     uniq_list=""
842     for tok in $(eval echo \$$var); do
843         uniq_list="$(filter_out $tok $uniq_list) $tok"
844     done
845     eval "$var=\"${uniq_list}\""
846 }
847
848 resolve(){
849     var=$1
850     tmpvar=
851     for entry in $(eval echo \$$var); do
852         tmpvar="$tmpvar $(eval echo \$${entry})"
853     done
854     eval "$var=\"${tmpvar}\""
855 }
856
857 add_cppflags(){
858     append CPPFLAGS "$@"
859 }
860
861 add_cflags(){
862     append CFLAGS $($cflags_filter "$@")
863 }
864
865 add_cflags_headers(){
866     append CFLAGS_HEADERS $($cflags_filter "$@")
867 }
868
869 add_cxxflags(){
870     append CXXFLAGS $($cflags_filter "$@")
871 }
872
873 add_asflags(){
874     append ASFLAGS $($asflags_filter "$@")
875 }
876
877 add_objcflags(){
878     append OBJCFLAGS $($objcflags_filter "$@")
879 }
880
881 add_ldflags(){
882     append LDFLAGS $($ldflags_filter "$@")
883 }
884
885 add_ldexeflags(){
886     append LDEXEFLAGS $($ldflags_filter "$@")
887 }
888
889 add_ldsoflags(){
890     append LDSOFLAGS $($ldflags_filter "$@")
891 }
892
893 add_stripflags(){
894     append ASMSTRIPFLAGS "$@"
895 }
896
897 add_extralibs(){
898     prepend extralibs $($ldflags_filter "$@")
899 }
900
901 add_host_cppflags(){
902     append host_cppflags "$@"
903 }
904
905 add_host_cflags(){
906     append host_cflags $($host_cflags_filter "$@")
907 }
908
909 add_host_ldflags(){
910     append host_ldflags $($host_ldflags_filter "$@")
911 }
912
913 add_compat(){
914     append compat_objs $1
915     shift
916     map 'add_cppflags -D$v' "$@"
917 }
918
919 test_cmd(){
920     log "$@"
921     "$@" >> $logfile 2>&1
922 }
923
924 test_stat(){
925     log test_stat "$@"
926     stat "$1" >> $logfile 2>&1
927 }
928
929 cc_o(){
930     eval printf '%s\\n' $CC_O
931 }
932
933 cc_e(){
934     eval printf '%s\\n' $CC_E
935 }
936
937 test_cc(){
938     log test_cc "$@"
939     cat > $TMPC
940     log_file $TMPC
941     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
942 }
943
944 test_cxx(){
945     log test_cxx "$@"
946     cat > $TMPCPP
947     log_file $TMPCPP
948     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
949 }
950
951 test_objcc(){
952     log test_objcc "$@"
953     cat > $TMPM
954     log_file $TMPM
955     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
956 }
957
958 test_cpp(){
959     log test_cpp "$@"
960     cat > $TMPC
961     log_file $TMPC
962     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
963 }
964
965 as_o(){
966     eval printf '%s\\n' $AS_O
967 }
968
969 test_as(){
970     log test_as "$@"
971     cat > $TMPS
972     log_file $TMPS
973     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
974 }
975
976 x86asm_o(){
977     eval printf '%s\\n' $X86ASM_O
978 }
979
980 test_x86asm(){
981     log test_x86asm "$@"
982     echo "$1" > $TMPASM
983     log_file $TMPASM
984     shift
985     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
986 }
987
988 check_cmd(){
989     log check_cmd "$@"
990     cmd=$1
991     disabled $cmd && return
992     disable $cmd
993     test_cmd $@ && enable $cmd
994 }
995
996 check_as(){
997     log check_as "$@"
998     name=$1
999     code=$2
1000     shift 2
1001     disable $name
1002     test_as $@ <<EOF && enable $name
1003 $code
1004 EOF
1005 }
1006
1007 check_inline_asm(){
1008     log check_inline_asm "$@"
1009     name="$1"
1010     code="$2"
1011     shift 2
1012     disable $name
1013     test_cc "$@" <<EOF && enable $name
1014 void foo(void){ __asm__ volatile($code); }
1015 EOF
1016 }
1017
1018 check_inline_asm_flags(){
1019     log check_inline_asm_flags "$@"
1020     name="$1"
1021     code="$2"
1022     flags=''
1023     shift 2
1024     while [ "$1" != "" ]; do
1025       append flags $1
1026       shift
1027     done;
1028     disable $name
1029     cat > $TMPC <<EOF
1030 void foo(void){ __asm__ volatile($code); }
1031 EOF
1032     log_file $TMPC
1033     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1034     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1035 }
1036
1037 check_insn(){
1038     log check_insn "$@"
1039     check_inline_asm ${1}_inline "$2"
1040     check_as ${1}_external "$2"
1041 }
1042
1043 check_x86asm(){
1044     log check_x86asm "$@"
1045     name=$1
1046     shift
1047     disable $name
1048     test_x86asm "$@" && enable $name
1049 }
1050
1051 ld_o(){
1052     eval printf '%s\\n' $LD_O
1053 }
1054
1055 test_ld(){
1056     log test_ld "$@"
1057     type=$1
1058     shift 1
1059     flags=$(filter_out '-l*|*.so' $@)
1060     libs=$(filter '-l*|*.so' $@)
1061     test_$type $($cflags_filter $flags) || return
1062     flags=$($ldflags_filter $flags)
1063     libs=$($ldflags_filter $libs)
1064     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1065 }
1066
1067 check_ld(){
1068     log check_ld "$@"
1069     type=$1
1070     name=$2
1071     shift 2
1072     disable $name
1073     test_ld $type $@ && enable $name
1074 }
1075
1076 print_include(){
1077     hdr=$1
1078     test "${hdr%.h}" = "${hdr}" &&
1079         echo "#include $hdr"    ||
1080         echo "#include <$hdr>"
1081 }
1082
1083 test_code(){
1084     log test_code "$@"
1085     check=$1
1086     headers=$2
1087     code=$3
1088     shift 3
1089     {
1090         for hdr in $headers; do
1091             print_include $hdr
1092         done
1093         echo "int main(void) { $code; return 0; }"
1094     } | test_$check "$@"
1095 }
1096
1097 check_cppflags(){
1098     log check_cppflags "$@"
1099     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1100 #include <stdlib.h>
1101 EOF
1102 }
1103
1104 test_cflags(){
1105     log test_cflags "$@"
1106     set -- $($cflags_filter "$@")
1107     test_cc "$@" <<EOF
1108 int x;
1109 EOF
1110 }
1111
1112 check_cflags(){
1113     log check_cflags "$@"
1114     test_cflags "$@" && add_cflags "$@"
1115 }
1116
1117 check_cxxflags(){
1118     log check_cxxflags "$@"
1119     set -- $($cflags_filter "$@")
1120     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1121 int x;
1122 EOF
1123 }
1124
1125 test_objcflags(){
1126     log test_objcflags "$@"
1127     set -- $($objcflags_filter "$@")
1128     test_objcc "$@" <<EOF
1129 int x;
1130 EOF
1131 }
1132
1133 check_objcflags(){
1134     log check_objcflags "$@"
1135     test_objcflags "$@" && add_objcflags "$@"
1136 }
1137
1138 test_ldflags(){
1139     log test_ldflags "$@"
1140     set -- $($ldflags_filter "$@")
1141     test_ld "cc" "$@" <<EOF
1142 int main(void){ return 0; }
1143 EOF
1144 }
1145
1146 check_ldflags(){
1147     log check_ldflags "$@"
1148     test_ldflags "$@" && add_ldflags "$@"
1149 }
1150
1151 test_stripflags(){
1152     log test_stripflags "$@"
1153     # call test_cc to get a fresh TMPO
1154     test_cc <<EOF
1155 int main(void) { return 0; }
1156 EOF
1157     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1158 }
1159
1160 check_stripflags(){
1161     log check_stripflags "$@"
1162     test_stripflags "$@" && add_stripflags "$@"
1163 }
1164
1165 check_header(){
1166     log check_header "$@"
1167     headers=$1
1168     shift
1169     disable_sanitized $headers
1170     {
1171         for hdr in $headers; do
1172             print_include $hdr
1173         done
1174         echo "int x;"
1175     } | test_cpp "$@" && enable_sanitized $headers
1176 }
1177
1178 check_header_objcc(){
1179     log check_header_objcc "$@"
1180     rm -f -- "$TMPO"
1181     header=$1
1182     shift
1183     disable_sanitized $header
1184     {
1185        echo "#include <$header>"
1186        echo "int main(void) { return 0; }"
1187     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1188 }
1189
1190 check_apple_framework(){
1191     log check_apple_framework "$@"
1192     framework="$1"
1193     name="$(tolower $framework)"
1194     header="${framework}/${framework}.h"
1195     disable $name
1196     check_header_objcc $header &&
1197         enable $name && eval ${name}_extralibs='"-framework $framework"'
1198 }
1199
1200 check_func(){
1201     log check_func "$@"
1202     func=$1
1203     shift
1204     disable $func
1205     test_ld "cc" "$@" <<EOF && enable $func
1206 extern int $func();
1207 int main(void){ $func(); }
1208 EOF
1209 }
1210
1211 check_complexfunc(){
1212     log check_complexfunc "$@"
1213     func=$1
1214     narg=$2
1215     shift 2
1216     test $narg = 2 && args="f, g" || args="f * I"
1217     disable $func
1218     test_ld "cc" "$@" <<EOF && enable $func
1219 #include <complex.h>
1220 #include <math.h>
1221 float foo(complex float f, complex float g) { return $func($args); }
1222 int main(void){ return (int) foo; }
1223 EOF
1224 }
1225
1226 check_mathfunc(){
1227     log check_mathfunc "$@"
1228     func=$1
1229     narg=$2
1230     shift 2
1231     test $narg = 2 && args="f, g" || args="f"
1232     disable $func
1233     test_ld "cc" "$@" <<EOF && enable $func
1234 #include <math.h>
1235 float foo(float f, float g) { return $func($args); }
1236 int main(void){ return (int) foo; }
1237 EOF
1238 }
1239
1240 check_func_headers(){
1241     log check_func_headers "$@"
1242     headers=$1
1243     funcs=$2
1244     shift 2
1245     {
1246         for hdr in $headers; do
1247             print_include $hdr
1248         done
1249         echo "#include <stdint.h>"
1250         for func in $funcs; do
1251             echo "long check_$func(void) { return (long) $func; }"
1252         done
1253         echo "int main(void) { int ret = 0;"
1254         # LTO could optimize out the test functions without this
1255         for func in $funcs; do
1256             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1257         done
1258         echo "return ret; }"
1259     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1260 }
1261
1262 check_class_headers_cpp(){
1263     log check_class_headers_cpp "$@"
1264     headers=$1
1265     classes=$2
1266     shift 2
1267     {
1268         for hdr in $headers; do
1269             echo "#include <$hdr>"
1270         done
1271         echo "int main(void) { "
1272         i=1
1273         for class in $classes; do
1274             echo "$class obj$i;"
1275             i=$(expr $i + 1)
1276         done
1277         echo "return 0; }"
1278     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1279 }
1280
1281 test_cpp_condition(){
1282     log test_cpp_condition "$@"
1283     header=$1
1284     condition=$2
1285     shift 2
1286     test_cpp "$@" <<EOF
1287 #include <$header>
1288 #if !($condition)
1289 #error "unsatisfied condition: $condition"
1290 #endif
1291 EOF
1292 }
1293
1294 check_cpp_condition(){
1295     log check_cpp_condition "$@"
1296     name=$1
1297     shift 1
1298     disable $name
1299     test_cpp_condition "$@" && enable $name
1300 }
1301
1302 test_cflags_cc(){
1303     log test_cflags_cc "$@"
1304     flags=$1
1305     header=$2
1306     condition=$3
1307     shift 3
1308     set -- $($cflags_filter "$flags")
1309     test_cc "$@" <<EOF
1310 #include <$header>
1311 #if !($condition)
1312 #error "unsatisfied condition: $condition"
1313 #endif
1314 EOF
1315 }
1316
1317 check_lib(){
1318     log check_lib "$@"
1319     name="$1"
1320     headers="$2"
1321     funcs="$3"
1322     shift 3
1323     disable $name
1324     check_func_headers "$headers" "$funcs" "$@" &&
1325         enable $name && eval ${name}_extralibs="\$@"
1326 }
1327
1328 check_lib_cpp(){
1329     log check_lib_cpp "$@"
1330     name="$1"
1331     headers="$2"
1332     classes="$3"
1333     shift 3
1334     disable $name
1335     check_class_headers_cpp "$headers" "$classes" "$@" &&
1336         enable $name && eval ${name}_extralibs="\$@"
1337 }
1338
1339 test_pkg_config(){
1340     log test_pkg_config "$@"
1341     name="$1"
1342     pkg_version="$2"
1343     pkg="${2%% *}"
1344     headers="$3"
1345     funcs="$4"
1346     shift 4
1347     disable $name
1348     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1349     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1350     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1351     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1352         enable $name &&
1353         set_sanitized "${name}_cflags"    $pkg_cflags &&
1354         set_sanitized "${name}_extralibs" $pkg_libs
1355 }
1356
1357 check_pkg_config(){
1358     log check_pkg_config "$@"
1359     name="$1"
1360     test_pkg_config "$@" &&
1361         eval add_cflags \$${name}_cflags
1362 }
1363
1364 test_exec(){
1365     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1366 }
1367
1368 check_exec_crash(){
1369     log check_exec_crash "$@"
1370     code=$(cat)
1371
1372     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1373     # are safe but may not be available everywhere.  Thus we use
1374     # raise(SIGTERM) instead.  The check is run in a subshell so we
1375     # can redirect the "Terminated" message from the shell.  SIGBUS
1376     # is not defined by standard C so it is used conditionally.
1377
1378     (test_exec "$@") >> $logfile 2>&1 <<EOF
1379 #include <signal.h>
1380 static void sighandler(int sig){
1381     raise(SIGTERM);
1382 }
1383 int foo(void){
1384     $code
1385 }
1386 int (*func_ptr)(void) = foo;
1387 int main(void){
1388     signal(SIGILL, sighandler);
1389     signal(SIGFPE, sighandler);
1390     signal(SIGSEGV, sighandler);
1391 #ifdef SIGBUS
1392     signal(SIGBUS, sighandler);
1393 #endif
1394     return func_ptr();
1395 }
1396 EOF
1397 }
1398
1399 check_type(){
1400     log check_type "$@"
1401     headers=$1
1402     type=$2
1403     shift 2
1404     disable_sanitized "$type"
1405     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1406 }
1407
1408 check_struct(){
1409     log check_struct "$@"
1410     headers=$1
1411     struct=$2
1412     member=$3
1413     shift 3
1414     disable_sanitized "${struct}_${member}"
1415     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1416         enable_sanitized "${struct}_${member}"
1417 }
1418
1419 check_builtin(){
1420     log check_builtin "$@"
1421     name=$1
1422     headers=$2
1423     builtin=$3
1424     shift 3
1425     disable "$name"
1426     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1427 }
1428
1429 check_compile_assert(){
1430     log check_compile_assert "$@"
1431     name=$1
1432     headers=$2
1433     condition=$3
1434     shift 3
1435     disable "$name"
1436     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1437 }
1438
1439 check_cc(){
1440     log check_cc "$@"
1441     name=$1
1442     shift
1443     disable "$name"
1444     test_code cc "$@" && enable "$name"
1445 }
1446
1447 require(){
1448     log require "$@"
1449     name_version="$1"
1450     name="${1%% *}"
1451     shift
1452     check_lib $name "$@" || die "ERROR: $name_version not found"
1453 }
1454
1455 require_cc(){
1456     log require_cc "$@"
1457     name="$1"
1458     shift
1459     test_code cc "$@" || die "ERROR: $name failed"
1460 }
1461
1462 require_cpp(){
1463     name="$1"
1464     headers="$2"
1465     classes="$3"
1466     shift 3
1467     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1468 }
1469
1470 require_header(){
1471     log require_header "$@"
1472     headers="$1"
1473     check_header "$@" || die "ERROR: $headers not found"
1474 }
1475
1476 require_cpp_condition(){
1477     log require_cpp_condition "$@"
1478     condition="$2"
1479     test_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1480 }
1481
1482 require_pkg_config(){
1483     log require_pkg_config "$@"
1484     pkg_version="$2"
1485     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1486 }
1487
1488 hostcc_e(){
1489     eval printf '%s\\n' $HOSTCC_E
1490 }
1491
1492 hostcc_o(){
1493     eval printf '%s\\n' $HOSTCC_O
1494 }
1495
1496 test_host_cc(){
1497     log test_host_cc "$@"
1498     cat > $TMPC
1499     log_file $TMPC
1500     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1501 }
1502
1503 test_host_cpp(){
1504     log test_host_cpp "$@"
1505     cat > $TMPC
1506     log_file $TMPC
1507     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1508 }
1509
1510 check_host_cppflags(){
1511     log check_host_cppflags "$@"
1512     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1513 #include <stdlib.h>
1514 EOF
1515 }
1516
1517 check_host_cflags(){
1518     log check_host_cflags "$@"
1519     set -- $($host_cflags_filter "$@")
1520     test_host_cc "$@" <<EOF && append host_cflags "$@"
1521 int x;
1522 EOF
1523 }
1524
1525 test_host_cpp_condition(){
1526     log test_host_cpp_condition "$@"
1527     header=$1
1528     condition=$2
1529     shift 2
1530     test_host_cpp "$@" <<EOF
1531 #include <$header>
1532 #if !($condition)
1533 #error "unsatisfied condition: $condition"
1534 #endif
1535 EOF
1536 }
1537
1538 check_host_cpp_condition(){
1539     log check_host_cpp_condition "$@"
1540     name=$1
1541     shift 1
1542     disable $name
1543     test_host_cpp_condition "$@" && enable $name
1544 }
1545
1546 cp_if_changed(){
1547     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1548     mkdir -p "$(dirname $2)"
1549     cp -f "$1" "$2"
1550 }
1551
1552 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1553 # system-dependent things.
1554
1555 AVCODEC_COMPONENTS="
1556     bsfs
1557     decoders
1558     encoders
1559     hwaccels
1560     parsers
1561 "
1562
1563 AVDEVICE_COMPONENTS="
1564     indevs
1565     outdevs
1566 "
1567
1568 AVFILTER_COMPONENTS="
1569     filters
1570 "
1571
1572 AVFORMAT_COMPONENTS="
1573     demuxers
1574     muxers
1575     protocols
1576 "
1577
1578 COMPONENT_LIST="
1579     $AVCODEC_COMPONENTS
1580     $AVDEVICE_COMPONENTS
1581     $AVFILTER_COMPONENTS
1582     $AVFORMAT_COMPONENTS
1583 "
1584
1585 EXAMPLE_LIST="
1586     avio_dir_cmd_example
1587     avio_reading_example
1588     decode_audio_example
1589     decode_video_example
1590     demuxing_decoding_example
1591     encode_audio_example
1592     encode_video_example
1593     extract_mvs_example
1594     filter_audio_example
1595     filtering_audio_example
1596     filtering_video_example
1597     http_multiclient_example
1598     hw_decode_example
1599     metadata_example
1600     muxing_example
1601     qsvdec_example
1602     remuxing_example
1603     resampling_audio_example
1604     scaling_video_example
1605     transcode_aac_example
1606     transcoding_example
1607     vaapi_encode_example
1608     vaapi_transcode_example
1609 "
1610
1611 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1612     alsa
1613     appkit
1614     avfoundation
1615     bzlib
1616     coreimage
1617     iconv
1618     libxcb
1619     libxcb_shm
1620     libxcb_shape
1621     libxcb_xfixes
1622     lzma
1623     schannel
1624     sdl2
1625     securetransport
1626     sndio
1627     xlib
1628     zlib
1629 "
1630
1631 EXTERNAL_LIBRARY_GPL_LIST="
1632     avisynth
1633     frei0r
1634     libcdio
1635     librubberband
1636     libvidstab
1637     libx264
1638     libx265
1639     libxavs
1640     libxvid
1641 "
1642
1643 EXTERNAL_LIBRARY_NONFREE_LIST="
1644     decklink
1645     libndi_newtek
1646     libfdk_aac
1647     openssl
1648     libtls
1649 "
1650
1651 EXTERNAL_LIBRARY_VERSION3_LIST="
1652     gmp
1653     libopencore_amrnb
1654     libopencore_amrwb
1655     libvmaf
1656     libvo_amrwbenc
1657     rkmpp
1658 "
1659
1660 EXTERNAL_LIBRARY_GPLV3_LIST="
1661     libsmbclient
1662 "
1663
1664 EXTERNAL_LIBRARY_LIST="
1665     $EXTERNAL_LIBRARY_GPL_LIST
1666     $EXTERNAL_LIBRARY_NONFREE_LIST
1667     $EXTERNAL_LIBRARY_VERSION3_LIST
1668     $EXTERNAL_LIBRARY_GPLV3_LIST
1669     chromaprint
1670     gcrypt
1671     gnutls
1672     jni
1673     ladspa
1674     libaom
1675     libass
1676     libbluray
1677     libbs2b
1678     libcaca
1679     libcelt
1680     libcodec2
1681     libdc1394
1682     libdrm
1683     libflite
1684     libfontconfig
1685     libfreetype
1686     libfribidi
1687     libgme
1688     libgsm
1689     libiec61883
1690     libilbc
1691     libjack
1692     libkvazaar
1693     libmodplug
1694     libmp3lame
1695     libmysofa
1696     libopencv
1697     libopenh264
1698     libopenjpeg
1699     libopenmpt
1700     libopus
1701     libpulse
1702     librsvg
1703     librtmp
1704     libshine
1705     libsmbclient
1706     libsnappy
1707     libsoxr
1708     libspeex
1709     libsrt
1710     libssh
1711     libtesseract
1712     libtheora
1713     libtwolame
1714     libv4l2
1715     libvorbis
1716     libvpx
1717     libwavpack
1718     libwebp
1719     libxml2
1720     libzimg
1721     libzmq
1722     libzvbi
1723     lv2
1724     mediacodec
1725     openal
1726     opengl
1727 "
1728
1729 HWACCEL_AUTODETECT_LIBRARY_LIST="
1730     amf
1731     audiotoolbox
1732     crystalhd
1733     cuda
1734     cuvid
1735     d3d11va
1736     dxva2
1737     ffnvcodec
1738     nvdec
1739     nvenc
1740     vaapi
1741     vdpau
1742     videotoolbox
1743     v4l2_m2m
1744     xvmc
1745 "
1746
1747 # catchall list of things that require external libs to link
1748 EXTRALIBS_LIST="
1749     cpu_init
1750     cws2fws
1751 "
1752
1753 HWACCEL_LIBRARY_NONFREE_LIST="
1754     cuda_sdk
1755     libnpp
1756 "
1757
1758 HWACCEL_LIBRARY_LIST="
1759     $HWACCEL_LIBRARY_NONFREE_LIST
1760     libmfx
1761     mmal
1762     omx
1763     opencl
1764 "
1765
1766 DOCUMENT_LIST="
1767     doc
1768     htmlpages
1769     manpages
1770     podpages
1771     txtpages
1772 "
1773
1774 FEATURE_LIST="
1775     ftrapv
1776     gray
1777     hardcoded_tables
1778     omx_rpi
1779     runtime_cpudetect
1780     safe_bitstream_reader
1781     shared
1782     small
1783     static
1784     swscale_alpha
1785 "
1786
1787 LIBRARY_LIST="
1788     avcodec
1789     avdevice
1790     avfilter
1791     avformat
1792     avresample
1793     avutil
1794     postproc
1795     swresample
1796     swscale
1797 "
1798
1799 LICENSE_LIST="
1800     gpl
1801     nonfree
1802     version3
1803 "
1804
1805 PROGRAM_LIST="
1806     ffplay
1807     ffprobe
1808     ffmpeg
1809 "
1810
1811 SUBSYSTEM_LIST="
1812     dct
1813     dwt
1814     error_resilience
1815     faan
1816     fast_unaligned
1817     fft
1818     lsp
1819     lzo
1820     mdct
1821     pixelutils
1822     network
1823     rdft
1824 "
1825
1826 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1827 CONFIG_LIST="
1828     $DOCUMENT_LIST
1829     $EXAMPLE_LIST
1830     $EXTERNAL_LIBRARY_LIST
1831     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1832     $HWACCEL_LIBRARY_LIST
1833     $HWACCEL_AUTODETECT_LIBRARY_LIST
1834     $FEATURE_LIST
1835     $LICENSE_LIST
1836     $LIBRARY_LIST
1837     $PROGRAM_LIST
1838     $SUBSYSTEM_LIST
1839     autodetect
1840     fontconfig
1841     linux_perf
1842     memory_poisoning
1843     neon_clobber_test
1844     ossfuzz
1845     pic
1846     thumb
1847     valgrind_backtrace
1848     xmm_clobber_test
1849     $COMPONENT_LIST
1850 "
1851
1852 THREADS_LIST="
1853     pthreads
1854     os2threads
1855     w32threads
1856 "
1857
1858 ATOMICS_LIST="
1859     atomics_gcc
1860     atomics_suncc
1861     atomics_win32
1862 "
1863
1864 AUTODETECT_LIBS="
1865     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1866     $HWACCEL_AUTODETECT_LIBRARY_LIST
1867     $THREADS_LIST
1868 "
1869
1870 ARCH_LIST="
1871     aarch64
1872     alpha
1873     arm
1874     avr32
1875     avr32_ap
1876     avr32_uc
1877     bfin
1878     ia64
1879     m68k
1880     mips
1881     mips64
1882     parisc
1883     ppc
1884     ppc64
1885     s390
1886     sh4
1887     sparc
1888     sparc64
1889     tilegx
1890     tilepro
1891     tomi
1892     x86
1893     x86_32
1894     x86_64
1895 "
1896
1897 ARCH_EXT_LIST_ARM="
1898     armv5te
1899     armv6
1900     armv6t2
1901     armv8
1902     neon
1903     vfp
1904     vfpv3
1905     setend
1906 "
1907
1908 ARCH_EXT_LIST_MIPS="
1909     mipsfpu
1910     mips32r2
1911     mips32r5
1912     mips64r2
1913     mips32r6
1914     mips64r6
1915     mipsdsp
1916     mipsdspr2
1917     msa
1918 "
1919
1920 ARCH_EXT_LIST_LOONGSON="
1921     loongson2
1922     loongson3
1923     mmi
1924 "
1925
1926 ARCH_EXT_LIST_X86_SIMD="
1927     aesni
1928     amd3dnow
1929     amd3dnowext
1930     avx
1931     avx2
1932     avx512
1933     fma3
1934     fma4
1935     mmx
1936     mmxext
1937     sse
1938     sse2
1939     sse3
1940     sse4
1941     sse42
1942     ssse3
1943     xop
1944 "
1945
1946 ARCH_EXT_LIST_PPC="
1947     altivec
1948     dcbzl
1949     ldbrx
1950     power8
1951     ppc4xx
1952     vsx
1953 "
1954
1955 ARCH_EXT_LIST_X86="
1956     $ARCH_EXT_LIST_X86_SIMD
1957     cpunop
1958     i686
1959 "
1960
1961 ARCH_EXT_LIST="
1962     $ARCH_EXT_LIST_ARM
1963     $ARCH_EXT_LIST_PPC
1964     $ARCH_EXT_LIST_X86
1965     $ARCH_EXT_LIST_MIPS
1966     $ARCH_EXT_LIST_LOONGSON
1967 "
1968
1969 ARCH_FEATURES="
1970     aligned_stack
1971     fast_64bit
1972     fast_clz
1973     fast_cmov
1974     local_aligned
1975     simd_align_16
1976     simd_align_32
1977     simd_align_64
1978 "
1979
1980 BUILTIN_LIST="
1981     atomic_cas_ptr
1982     machine_rw_barrier
1983     MemoryBarrier
1984     mm_empty
1985     rdtsc
1986     sem_timedwait
1987     sync_val_compare_and_swap
1988 "
1989 HAVE_LIST_CMDLINE="
1990     inline_asm
1991     symver
1992     x86asm
1993 "
1994
1995 HAVE_LIST_PUB="
1996     bigendian
1997     fast_unaligned
1998 "
1999
2000 HEADERS_LIST="
2001     arpa_inet_h
2002     asm_types_h
2003     cdio_paranoia_h
2004     cdio_paranoia_paranoia_h
2005     cuda_h
2006     dispatch_dispatch_h
2007     dev_bktr_ioctl_bt848_h
2008     dev_bktr_ioctl_meteor_h
2009     dev_ic_bt8xx_h
2010     dev_video_bktr_ioctl_bt848_h
2011     dev_video_meteor_ioctl_meteor_h
2012     direct_h
2013     dirent_h
2014     dxgidebug_h
2015     dxva_h
2016     ES2_gl_h
2017     gsm_h
2018     io_h
2019     linux_perf_event_h
2020     machine_ioctl_bt848_h
2021     machine_ioctl_meteor_h
2022     malloc_h
2023     opencv2_core_core_c_h
2024     OpenGL_gl3_h
2025     poll_h
2026     sys_param_h
2027     sys_resource_h
2028     sys_select_h
2029     sys_soundcard_h
2030     sys_time_h
2031     sys_un_h
2032     sys_videoio_h
2033     termios_h
2034     udplite_h
2035     unistd_h
2036     valgrind_valgrind_h
2037     windows_h
2038     winsock2_h
2039 "
2040
2041 INTRINSICS_LIST="
2042     intrinsics_neon
2043 "
2044
2045 COMPLEX_FUNCS="
2046     cabs
2047     cexp
2048 "
2049
2050 MATH_FUNCS="
2051     atanf
2052     atan2f
2053     cbrt
2054     cbrtf
2055     copysign
2056     cosf
2057     erf
2058     exp2
2059     exp2f
2060     expf
2061     hypot
2062     isfinite
2063     isinf
2064     isnan
2065     ldexpf
2066     llrint
2067     llrintf
2068     log2
2069     log2f
2070     log10f
2071     lrint
2072     lrintf
2073     powf
2074     rint
2075     round
2076     roundf
2077     sinf
2078     trunc
2079     truncf
2080 "
2081
2082 SYSTEM_FEATURES="
2083     dos_paths
2084     libc_msvcrt
2085     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2086     section_data_rel_ro
2087     threads
2088     uwp
2089     winrt
2090 "
2091
2092 SYSTEM_FUNCS="
2093     access
2094     aligned_malloc
2095     arc4random
2096     clock_gettime
2097     closesocket
2098     CommandLineToArgvW
2099     fcntl
2100     getaddrinfo
2101     gethrtime
2102     getopt
2103     GetProcessAffinityMask
2104     GetProcessMemoryInfo
2105     GetProcessTimes
2106     getrusage
2107     GetSystemTimeAsFileTime
2108     gettimeofday
2109     glob
2110     glXGetProcAddress
2111     gmtime_r
2112     inet_aton
2113     isatty
2114     kbhit
2115     localtime_r
2116     lstat
2117     lzo1x_999_compress
2118     mach_absolute_time
2119     MapViewOfFile
2120     memalign
2121     mkstemp
2122     mmap
2123     mprotect
2124     nanosleep
2125     PeekNamedPipe
2126     posix_memalign
2127     pthread_cancel
2128     sched_getaffinity
2129     SecItemImport
2130     SetConsoleTextAttribute
2131     SetConsoleCtrlHandler
2132     setmode
2133     setrlimit
2134     Sleep
2135     strerror_r
2136     sysconf
2137     sysctl
2138     usleep
2139     UTGetOSTypeFromString
2140     VirtualAlloc
2141     wglGetProcAddress
2142 "
2143
2144 SYSTEM_LIBRARIES="
2145     bcrypt
2146     vaapi_drm
2147     vaapi_x11
2148     vdpau_x11
2149 "
2150
2151 TOOLCHAIN_FEATURES="
2152     as_arch_directive
2153     as_dn_directive
2154     as_fpu_directive
2155     as_func
2156     as_object_arch
2157     asm_mod_q
2158     blocks_extension
2159     ebp_available
2160     ebx_available
2161     gnu_as
2162     gnu_windres
2163     ibm_asm
2164     inline_asm_direct_symbol_refs
2165     inline_asm_labels
2166     inline_asm_nonlocal_labels
2167     pragma_deprecated
2168     rsync_contimeout
2169     symver_asm_label
2170     symver_gnu_asm
2171     vfp_args
2172     xform_asm
2173     xmm_clobbers
2174 "
2175
2176 TYPES_LIST="
2177     kCMVideoCodecType_HEVC
2178     socklen_t
2179     struct_addrinfo
2180     struct_group_source_req
2181     struct_ip_mreq_source
2182     struct_ipv6_mreq
2183     struct_msghdr_msg_flags
2184     struct_pollfd
2185     struct_rusage_ru_maxrss
2186     struct_sctp_event_subscribe
2187     struct_sockaddr_in6
2188     struct_sockaddr_sa_len
2189     struct_sockaddr_storage
2190     struct_stat_st_mtim_tv_nsec
2191     struct_v4l2_frmivalenum_discrete
2192 "
2193
2194 HAVE_LIST="
2195     $ARCH_EXT_LIST
2196     $(add_suffix _external $ARCH_EXT_LIST)
2197     $(add_suffix _inline   $ARCH_EXT_LIST)
2198     $ARCH_FEATURES
2199     $BUILTIN_LIST
2200     $COMPLEX_FUNCS
2201     $HAVE_LIST_CMDLINE
2202     $HAVE_LIST_PUB
2203     $HEADERS_LIST
2204     $INTRINSICS_LIST
2205     $MATH_FUNCS
2206     $SYSTEM_FEATURES
2207     $SYSTEM_FUNCS
2208     $SYSTEM_LIBRARIES
2209     $THREADS_LIST
2210     $TOOLCHAIN_FEATURES
2211     $TYPES_LIST
2212     makeinfo
2213     makeinfo_html
2214     opencl_d3d11
2215     opencl_drm_arm
2216     opencl_drm_beignet
2217     opencl_dxva2
2218     opencl_vaapi_beignet
2219     opencl_vaapi_intel_media
2220     perl
2221     pod2man
2222     texi2html
2223 "
2224
2225 # options emitted with CONFIG_ prefix but not available on the command line
2226 CONFIG_EXTRA="
2227     aandcttables
2228     ac3dsp
2229     adts_header
2230     audio_frame_queue
2231     audiodsp
2232     blockdsp
2233     bswapdsp
2234     cabac
2235     cbs
2236     cbs_h264
2237     cbs_h265
2238     cbs_mpeg2
2239     cbs_vp9
2240     dirac_parse
2241     dvprofile
2242     exif
2243     faandct
2244     faanidct
2245     fdctdsp
2246     flacdsp
2247     fmtconvert
2248     frame_thread_encoder
2249     g722dsp
2250     golomb
2251     gplv3
2252     h263dsp
2253     h264chroma
2254     h264dsp
2255     h264parse
2256     h264pred
2257     h264qpel
2258     hevcparse
2259     hpeldsp
2260     huffman
2261     huffyuvdsp
2262     huffyuvencdsp
2263     idctdsp
2264     iirfilter
2265     mdct15
2266     intrax8
2267     iso_media
2268     ividsp
2269     jpegtables
2270     lgplv3
2271     libx262
2272     llauddsp
2273     llviddsp
2274     llvidencdsp
2275     lpc
2276     lzf
2277     me_cmp
2278     mpeg_er
2279     mpegaudio
2280     mpegaudiodsp
2281     mpegaudioheader
2282     mpegvideo
2283     mpegvideoenc
2284     mss34dsp
2285     pixblockdsp
2286     qpeldsp
2287     qsv
2288     qsvdec
2289     qsvenc
2290     qsvvpp
2291     rangecoder
2292     riffdec
2293     riffenc
2294     rtpdec
2295     rtpenc_chain
2296     rv34dsp
2297     sinewin
2298     snappy
2299     srtp
2300     startcode
2301     texturedsp
2302     texturedspenc
2303     tpeldsp
2304     vaapi_1
2305     vaapi_encode
2306     vc1dsp
2307     videodsp
2308     vp3dsp
2309     vp56dsp
2310     vp8dsp
2311     wma_freqs
2312     wmv2dsp
2313 "
2314
2315 CMDLINE_SELECT="
2316     $ARCH_EXT_LIST
2317     $CONFIG_LIST
2318     $HAVE_LIST_CMDLINE
2319     $THREADS_LIST
2320     asm
2321     cross_compile
2322     debug
2323     extra_warnings
2324     logging
2325     lto
2326     optimizations
2327     rpath
2328     stripping
2329 "
2330
2331 PATHS_LIST="
2332     bindir
2333     datadir
2334     docdir
2335     incdir
2336     libdir
2337     mandir
2338     pkgconfigdir
2339     prefix
2340     shlibdir
2341     install_name_dir
2342 "
2343
2344 CMDLINE_SET="
2345     $PATHS_LIST
2346     ar
2347     arch
2348     as
2349     assert_level
2350     build_suffix
2351     cc
2352     objcc
2353     cpu
2354     cross_prefix
2355     custom_allocator
2356     cxx
2357     dep_cc
2358     doxygen
2359     env
2360     extra_version
2361     gas
2362     host_cc
2363     host_cflags
2364     host_extralibs
2365     host_ld
2366     host_ldflags
2367     host_os
2368     ignore_tests
2369     install
2370     ld
2371     ln_s
2372     logfile
2373     malloc_prefix
2374     nm
2375     optflags
2376     nvcc
2377     nvccflags
2378     pkg_config
2379     pkg_config_flags
2380     progs_suffix
2381     random_seed
2382     ranlib
2383     samples
2384     strip
2385     sws_max_filter_size
2386     sysinclude
2387     sysroot
2388     target_exec
2389     target_os
2390     target_path
2391     target_samples
2392     tempprefix
2393     toolchain
2394     valgrind
2395     x86asmexe
2396 "
2397
2398 CMDLINE_APPEND="
2399     extra_cflags
2400     extra_cxxflags
2401     extra_objcflags
2402     host_cppflags
2403 "
2404
2405 # code dependency declarations
2406
2407 # architecture extensions
2408
2409 armv5te_deps="arm"
2410 armv6_deps="arm"
2411 armv6t2_deps="arm"
2412 armv8_deps="aarch64"
2413 neon_deps_any="aarch64 arm"
2414 intrinsics_neon_deps="neon"
2415 vfp_deps_any="aarch64 arm"
2416 vfpv3_deps="vfp"
2417 setend_deps="arm"
2418
2419 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2420
2421 altivec_deps="ppc"
2422 dcbzl_deps="ppc"
2423 ldbrx_deps="ppc"
2424 ppc4xx_deps="ppc"
2425 vsx_deps="altivec"
2426 power8_deps="vsx"
2427
2428 loongson2_deps="mips"
2429 loongson3_deps="mips"
2430 mips32r2_deps="mips"
2431 mips32r5_deps="mips"
2432 mips32r6_deps="mips"
2433 mips64r2_deps="mips"
2434 mips64r6_deps="mips"
2435 mipsfpu_deps="mips"
2436 mipsdsp_deps="mips"
2437 mipsdspr2_deps="mips"
2438 mmi_deps="mips"
2439 msa_deps="mipsfpu"
2440
2441 cpunop_deps="i686"
2442 x86_64_select="i686"
2443 x86_64_suggest="fast_cmov"
2444
2445 amd3dnow_deps="mmx"
2446 amd3dnowext_deps="amd3dnow"
2447 i686_deps="x86"
2448 mmx_deps="x86"
2449 mmxext_deps="mmx"
2450 sse_deps="mmxext"
2451 sse2_deps="sse"
2452 sse3_deps="sse2"
2453 ssse3_deps="sse3"
2454 sse4_deps="ssse3"
2455 sse42_deps="sse4"
2456 aesni_deps="sse42"
2457 avx_deps="sse42"
2458 xop_deps="avx"
2459 fma3_deps="avx"
2460 fma4_deps="avx"
2461 avx2_deps="avx"
2462 avx512_deps="avx2"
2463
2464 mmx_external_deps="x86asm"
2465 mmx_inline_deps="inline_asm x86"
2466 mmx_suggest="mmx_external mmx_inline"
2467
2468 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2469     eval dep=\$${ext}_deps
2470     eval ${ext}_external_deps='"${dep}_external"'
2471     eval ${ext}_inline_deps='"${dep}_inline"'
2472     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2473 done
2474
2475 aligned_stack_if_any="aarch64 ppc x86"
2476 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2477 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2478 fast_unaligned_if_any="aarch64 ppc x86"
2479 simd_align_16_if_any="altivec neon sse"
2480 simd_align_32_if_any="avx"
2481 simd_align_64_if_any="avx512"
2482
2483 # system capabilities
2484 linux_perf_deps="linux_perf_event_h"
2485 symver_if_any="symver_asm_label symver_gnu_asm"
2486 valgrind_backtrace_conflict="optimizations"
2487 valgrind_backtrace_deps="valgrind_valgrind_h"
2488
2489 # threading support
2490 atomics_gcc_if="sync_val_compare_and_swap"
2491 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2492 atomics_win32_if="MemoryBarrier"
2493 atomics_native_if_any="$ATOMICS_LIST"
2494 w32threads_deps="atomics_native"
2495 threads_if_any="$THREADS_LIST"
2496
2497 # subsystems
2498 cbs_h264_select="cbs golomb"
2499 cbs_h265_select="cbs golomb"
2500 cbs_mpeg2_select="cbs"
2501 cbs_vp9_select="cbs"
2502 dct_select="rdft"
2503 dirac_parse_select="golomb"
2504 error_resilience_select="me_cmp"
2505 faandct_deps="faan"
2506 faandct_select="fdctdsp"
2507 faanidct_deps="faan"
2508 faanidct_select="idctdsp"
2509 h264dsp_select="startcode"
2510 hevcparse_select="golomb"
2511 frame_thread_encoder_deps="encoders threads"
2512 intrax8_select="blockdsp idctdsp"
2513 mdct_select="fft"
2514 mdct15_select="fft"
2515 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2516 mpeg_er_select="error_resilience"
2517 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2518 mpegaudiodsp_select="dct"
2519 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2520 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2521 vc1dsp_select="h264chroma qpeldsp startcode"
2522 rdft_select="fft"
2523
2524 # decoders / encoders
2525 aac_decoder_select="adts_header mdct15 mdct sinewin"
2526 aac_fixed_decoder_select="adts_header mdct sinewin"
2527 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2528 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2529 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2530 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2531 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2532 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2533 adpcm_g722_decoder_select="g722dsp"
2534 adpcm_g722_encoder_select="g722dsp"
2535 aic_decoder_select="golomb idctdsp"
2536 alac_encoder_select="lpc"
2537 als_decoder_select="bswapdsp"
2538 amrnb_decoder_select="lsp"
2539 amrwb_decoder_select="lsp"
2540 amv_decoder_select="sp5x_decoder exif"
2541 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2542 ape_decoder_select="bswapdsp llauddsp"
2543 apng_decoder_deps="zlib"
2544 apng_encoder_deps="zlib"
2545 apng_encoder_select="llvidencdsp"
2546 aptx_decoder_select="audio_frame_queue"
2547 aptx_encoder_select="audio_frame_queue"
2548 aptx_hd_decoder_select="audio_frame_queue"
2549 aptx_hd_encoder_select="audio_frame_queue"
2550 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2551 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2552 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2553 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2554 atrac1_decoder_select="mdct sinewin"
2555 atrac3_decoder_select="mdct"
2556 atrac3p_decoder_select="mdct sinewin"
2557 avrn_decoder_select="exif jpegtables"
2558 bink_decoder_select="blockdsp hpeldsp"
2559 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2560 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2561 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2562 clearvideo_decoder_select="idctdsp"
2563 cllc_decoder_select="bswapdsp"
2564 comfortnoise_encoder_select="lpc"
2565 cook_decoder_select="audiodsp mdct sinewin"
2566 cscd_decoder_select="lzo"
2567 cscd_decoder_suggest="zlib"
2568 dca_decoder_select="mdct"
2569 dds_decoder_select="texturedsp"
2570 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2571 dnxhd_decoder_select="blockdsp idctdsp"
2572 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2573 dolby_e_decoder_select="mdct"
2574 dvvideo_decoder_select="dvprofile idctdsp"
2575 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2576 dxa_decoder_deps="zlib"
2577 dxv_decoder_select="lzf texturedsp"
2578 eac3_decoder_select="ac3_decoder"
2579 eac3_encoder_select="ac3_encoder"
2580 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2581 eatgq_decoder_select="aandcttables"
2582 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2583 exr_decoder_deps="zlib"
2584 ffv1_decoder_select="rangecoder"
2585 ffv1_encoder_select="rangecoder"
2586 ffvhuff_decoder_select="huffyuv_decoder"
2587 ffvhuff_encoder_select="huffyuv_encoder"
2588 fic_decoder_select="golomb"
2589 flac_decoder_select="flacdsp"
2590 flac_encoder_select="bswapdsp flacdsp lpc"
2591 flashsv2_decoder_deps="zlib"
2592 flashsv2_encoder_deps="zlib"
2593 flashsv_decoder_deps="zlib"
2594 flashsv_encoder_deps="zlib"
2595 flv_decoder_select="h263_decoder"
2596 flv_encoder_select="h263_encoder"
2597 fourxm_decoder_select="blockdsp bswapdsp"
2598 fraps_decoder_select="bswapdsp huffman"
2599 g2m_decoder_deps="zlib"
2600 g2m_decoder_select="blockdsp idctdsp jpegtables"
2601 g729_decoder_select="audiodsp"
2602 h261_decoder_select="mpegvideo"
2603 h261_encoder_select="aandcttables mpegvideoenc"
2604 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2605 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2606 h263i_decoder_select="h263_decoder"
2607 h263p_decoder_select="h263_decoder"
2608 h263p_encoder_select="h263_encoder"
2609 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2610 h264_decoder_suggest="error_resilience"
2611 hap_decoder_select="snappy texturedsp"
2612 hap_encoder_deps="libsnappy"
2613 hap_encoder_select="texturedspenc"
2614 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2615 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2616 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2617 iac_decoder_select="imc_decoder"
2618 imc_decoder_select="bswapdsp fft mdct sinewin"
2619 indeo3_decoder_select="hpeldsp"
2620 indeo4_decoder_select="ividsp"
2621 indeo5_decoder_select="ividsp"
2622 interplay_video_decoder_select="hpeldsp"
2623 jpegls_decoder_select="mjpeg_decoder"
2624 jv_decoder_select="blockdsp"
2625 lagarith_decoder_select="llviddsp"
2626 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2627 magicyuv_decoder_select="llviddsp"
2628 magicyuv_encoder_select="llvidencdsp"
2629 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2630 metasound_decoder_select="lsp mdct sinewin"
2631 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2632 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2633 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2634 mjpegb_decoder_select="mjpeg_decoder"
2635 mlp_decoder_select="mlp_parser"
2636 mlp_encoder_select="lpc"
2637 motionpixels_decoder_select="bswapdsp"
2638 mp1_decoder_select="mpegaudio"
2639 mp1float_decoder_select="mpegaudio"
2640 mp2_decoder_select="mpegaudio"
2641 mp2float_decoder_select="mpegaudio"
2642 mp3_decoder_select="mpegaudio"
2643 mp3adu_decoder_select="mpegaudio"
2644 mp3adufloat_decoder_select="mpegaudio"
2645 mp3float_decoder_select="mpegaudio"
2646 mp3on4_decoder_select="mpegaudio"
2647 mp3on4float_decoder_select="mpegaudio"
2648 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2649 mpc8_decoder_select="mpegaudiodsp"
2650 mpegvideo_decoder_select="mpegvideo"
2651 mpeg1video_decoder_select="mpegvideo"
2652 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2653 mpeg2video_decoder_select="mpegvideo"
2654 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2655 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2656 mpeg4_encoder_select="h263_encoder"
2657 msa1_decoder_select="mss34dsp"
2658 mscc_decoder_deps="zlib"
2659 msmpeg4v1_decoder_select="h263_decoder"
2660 msmpeg4v2_decoder_select="h263_decoder"
2661 msmpeg4v2_encoder_select="h263_encoder"
2662 msmpeg4v3_decoder_select="h263_decoder"
2663 msmpeg4v3_encoder_select="h263_encoder"
2664 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2665 mts2_decoder_select="mss34dsp"
2666 mxpeg_decoder_select="mjpeg_decoder"
2667 nellymoser_decoder_select="mdct sinewin"
2668 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2669 nuv_decoder_select="idctdsp lzo"
2670 on2avc_decoder_select="mdct"
2671 opus_decoder_deps="swresample"
2672 opus_decoder_select="mdct15"
2673 opus_encoder_select="audio_frame_queue mdct15"
2674 png_decoder_deps="zlib"
2675 png_encoder_deps="zlib"
2676 png_encoder_select="llvidencdsp"
2677 prores_decoder_select="blockdsp idctdsp"
2678 prores_encoder_select="fdctdsp"
2679 qcelp_decoder_select="lsp"
2680 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2681 ra_144_decoder_select="audiodsp"
2682 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2683 ralf_decoder_select="golomb"
2684 rawvideo_decoder_select="bswapdsp"
2685 rscc_decoder_deps="zlib"
2686 rtjpeg_decoder_select="me_cmp"
2687 rv10_decoder_select="h263_decoder"
2688 rv10_encoder_select="h263_encoder"
2689 rv20_decoder_select="h263_decoder"
2690 rv20_encoder_select="h263_encoder"
2691 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2692 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2693 screenpresso_decoder_deps="zlib"
2694 shorten_decoder_select="bswapdsp"
2695 sipr_decoder_select="lsp"
2696 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2697 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2698 sonic_decoder_select="golomb rangecoder"
2699 sonic_encoder_select="golomb rangecoder"
2700 sonic_ls_encoder_select="golomb rangecoder"
2701 sp5x_decoder_select="mjpeg_decoder"
2702 srgc_decoder_deps="zlib"
2703 svq1_decoder_select="hpeldsp"
2704 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2705 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2706 svq3_decoder_suggest="zlib"
2707 tak_decoder_select="audiodsp"
2708 tdsc_decoder_deps="zlib"
2709 tdsc_decoder_select="mjpeg_decoder"
2710 theora_decoder_select="vp3_decoder"
2711 thp_decoder_select="mjpeg_decoder"
2712 tiff_decoder_suggest="zlib lzma"
2713 tiff_encoder_suggest="zlib"
2714 truehd_decoder_select="mlp_parser"
2715 truehd_encoder_select="lpc"
2716 truemotion2_decoder_select="bswapdsp"
2717 truespeech_decoder_select="bswapdsp"
2718 tscc_decoder_deps="zlib"
2719 twinvq_decoder_select="mdct lsp sinewin"
2720 txd_decoder_select="texturedsp"
2721 utvideo_decoder_select="bswapdsp llviddsp"
2722 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2723 vble_decoder_select="llviddsp"
2724 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2725 vc1image_decoder_select="vc1_decoder"
2726 vorbis_decoder_select="mdct"
2727 vorbis_encoder_select="audio_frame_queue mdct"
2728 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2729 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2730 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2731 vp6a_decoder_select="vp6_decoder"
2732 vp6f_decoder_select="vp6_decoder"
2733 vp7_decoder_select="h264pred videodsp vp8dsp"
2734 vp8_decoder_select="h264pred videodsp vp8dsp"
2735 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2736 webp_decoder_select="vp8_decoder exif"
2737 wmalossless_decoder_select="llauddsp"
2738 wmapro_decoder_select="mdct sinewin wma_freqs"
2739 wmav1_decoder_select="mdct sinewin wma_freqs"
2740 wmav1_encoder_select="mdct sinewin wma_freqs"
2741 wmav2_decoder_select="mdct sinewin wma_freqs"
2742 wmav2_encoder_select="mdct sinewin wma_freqs"
2743 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2744 wmv1_decoder_select="h263_decoder"
2745 wmv1_encoder_select="h263_encoder"
2746 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2747 wmv2_encoder_select="h263_encoder wmv2dsp"
2748 wmv3_decoder_select="vc1_decoder"
2749 wmv3image_decoder_select="wmv3_decoder"
2750 xma1_decoder_select="wmapro_decoder"
2751 xma2_decoder_select="wmapro_decoder"
2752 zerocodec_decoder_deps="zlib"
2753 zlib_decoder_deps="zlib"
2754 zlib_encoder_deps="zlib"
2755 zmbv_decoder_deps="zlib"
2756 zmbv_encoder_deps="zlib"
2757
2758 # hardware accelerators
2759 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2760 cuda_deps="ffnvcodec"
2761 cuvid_deps="ffnvcodec"
2762 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2763 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2764 ffnvcodec_deps_any="libdl LoadLibrary"
2765 nvdec_deps="ffnvcodec"
2766 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2767 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2768 xvmc_deps="X11_extensions_XvMClib_h"
2769
2770 h263_vaapi_hwaccel_deps="vaapi"
2771 h263_vaapi_hwaccel_select="h263_decoder"
2772 h263_videotoolbox_hwaccel_deps="videotoolbox"
2773 h263_videotoolbox_hwaccel_select="h263_decoder"
2774 h264_d3d11va_hwaccel_deps="d3d11va"
2775 h264_d3d11va_hwaccel_select="h264_decoder"
2776 h264_d3d11va2_hwaccel_deps="d3d11va"
2777 h264_d3d11va2_hwaccel_select="h264_decoder"
2778 h264_dxva2_hwaccel_deps="dxva2"
2779 h264_dxva2_hwaccel_select="h264_decoder"
2780 h264_nvdec_hwaccel_deps="nvdec"
2781 h264_nvdec_hwaccel_select="h264_decoder"
2782 h264_vaapi_hwaccel_deps="vaapi"
2783 h264_vaapi_hwaccel_select="h264_decoder"
2784 h264_vdpau_hwaccel_deps="vdpau"
2785 h264_vdpau_hwaccel_select="h264_decoder"
2786 h264_videotoolbox_hwaccel_deps="videotoolbox"
2787 h264_videotoolbox_hwaccel_select="h264_decoder"
2788 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2789 hevc_d3d11va_hwaccel_select="hevc_decoder"
2790 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2791 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2792 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2793 hevc_dxva2_hwaccel_select="hevc_decoder"
2794 hevc_nvdec_hwaccel_deps="nvdec"
2795 hevc_nvdec_hwaccel_select="hevc_decoder"
2796 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2797 hevc_vaapi_hwaccel_select="hevc_decoder"
2798 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2799 hevc_vdpau_hwaccel_select="hevc_decoder"
2800 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2801 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2802 mjpeg_nvdec_hwaccel_deps="nvdec"
2803 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2804 mjpeg_vaapi_hwaccel_deps="vaapi"
2805 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2806 mpeg_xvmc_hwaccel_deps="xvmc"
2807 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2808 mpeg1_nvdec_hwaccel_deps="nvdec"
2809 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2810 mpeg1_vdpau_hwaccel_deps="vdpau"
2811 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2812 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2813 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2814 mpeg1_xvmc_hwaccel_deps="xvmc"
2815 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2816 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2817 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2818 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2819 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2820 mpeg2_dxva2_hwaccel_deps="dxva2"
2821 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2822 mpeg2_nvdec_hwaccel_deps="nvdec"
2823 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2824 mpeg2_vaapi_hwaccel_deps="vaapi"
2825 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2826 mpeg2_vdpau_hwaccel_deps="vdpau"
2827 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2828 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2829 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2830 mpeg2_xvmc_hwaccel_deps="xvmc"
2831 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2832 mpeg4_nvdec_hwaccel_deps="nvdec"
2833 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2834 mpeg4_vaapi_hwaccel_deps="vaapi"
2835 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2836 mpeg4_vdpau_hwaccel_deps="vdpau"
2837 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2838 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2839 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2840 vc1_d3d11va_hwaccel_deps="d3d11va"
2841 vc1_d3d11va_hwaccel_select="vc1_decoder"
2842 vc1_d3d11va2_hwaccel_deps="d3d11va"
2843 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2844 vc1_dxva2_hwaccel_deps="dxva2"
2845 vc1_dxva2_hwaccel_select="vc1_decoder"
2846 vc1_nvdec_hwaccel_deps="nvdec"
2847 vc1_nvdec_hwaccel_select="vc1_decoder"
2848 vc1_vaapi_hwaccel_deps="vaapi"
2849 vc1_vaapi_hwaccel_select="vc1_decoder"
2850 vc1_vdpau_hwaccel_deps="vdpau"
2851 vc1_vdpau_hwaccel_select="vc1_decoder"
2852 vp8_nvdec_hwaccel_deps="nvdec"
2853 vp8_nvdec_hwaccel_select="vp8_decoder"
2854 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2855 vp8_vaapi_hwaccel_select="vp8_decoder"
2856 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2857 vp9_d3d11va_hwaccel_select="vp9_decoder"
2858 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2859 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2860 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2861 vp9_dxva2_hwaccel_select="vp9_decoder"
2862 vp9_nvdec_hwaccel_deps="nvdec"
2863 vp9_nvdec_hwaccel_select="vp9_decoder"
2864 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2865 vp9_vaapi_hwaccel_select="vp9_decoder"
2866 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2867 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2868 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2869 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2870 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2871 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2872
2873 # hardware-accelerated codecs
2874 omx_deps="libdl pthreads"
2875 omx_rpi_select="omx"
2876 qsv_deps="libmfx"
2877 qsvdec_select="qsv"
2878 qsvenc_select="qsv"
2879 qsvvpp_select="qsv"
2880 vaapi_encode_deps="vaapi"
2881 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2882
2883 hwupload_cuda_filter_deps="ffnvcodec"
2884 scale_npp_filter_deps="ffnvcodec libnpp"
2885 scale_cuda_filter_deps="cuda_sdk"
2886 thumbnail_cuda_filter_deps="cuda_sdk"
2887
2888 amf_deps_any="libdl LoadLibrary"
2889 nvenc_deps="ffnvcodec"
2890 nvenc_deps_any="libdl LoadLibrary"
2891 nvenc_encoder_deps="nvenc"
2892
2893 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2894 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2895 h264_amf_encoder_deps="amf"
2896 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2897 h264_cuvid_decoder_deps="cuvid"
2898 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2899 h264_mediacodec_decoder_deps="mediacodec"
2900 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2901 h264_mmal_decoder_deps="mmal"
2902 h264_nvenc_encoder_deps="nvenc"
2903 h264_omx_encoder_deps="omx"
2904 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2905 h264_qsv_encoder_select="qsvenc"
2906 h264_rkmpp_decoder_deps="rkmpp"
2907 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2908 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2909 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2910 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2911 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2912 hevc_amf_encoder_deps="amf"
2913 hevc_cuvid_decoder_deps="cuvid"
2914 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2915 hevc_mediacodec_decoder_deps="mediacodec"
2916 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2917 hevc_nvenc_encoder_deps="nvenc"
2918 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2919 hevc_qsv_encoder_select="hevcparse qsvenc"
2920 hevc_rkmpp_decoder_deps="rkmpp"
2921 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2922 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2923 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2924 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2925 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2926 mjpeg_cuvid_decoder_deps="cuvid"
2927 mjpeg_qsv_encoder_deps="libmfx"
2928 mjpeg_qsv_encoder_select="qsvenc"
2929 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2930 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2931 mpeg1_cuvid_decoder_deps="cuvid"
2932 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2933 mpeg2_crystalhd_decoder_select="crystalhd"
2934 mpeg2_cuvid_decoder_deps="cuvid"
2935 mpeg2_mmal_decoder_deps="mmal"
2936 mpeg2_mediacodec_decoder_deps="mediacodec"
2937 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2938 mpeg2_qsv_encoder_select="qsvenc"
2939 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2940 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2941 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2942 mpeg4_crystalhd_decoder_select="crystalhd"
2943 mpeg4_cuvid_decoder_deps="cuvid"
2944 mpeg4_mediacodec_decoder_deps="mediacodec"
2945 mpeg4_mmal_decoder_deps="mmal"
2946 mpeg4_omx_encoder_deps="omx"
2947 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2948 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2949 msmpeg4_crystalhd_decoder_select="crystalhd"
2950 nvenc_h264_encoder_select="h264_nvenc_encoder"
2951 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2952 vc1_crystalhd_decoder_select="crystalhd"
2953 vc1_cuvid_decoder_deps="cuvid"
2954 vc1_mmal_decoder_deps="mmal"
2955 vc1_qsv_decoder_select="qsvdec vc1_parser"
2956 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2957 vp8_cuvid_decoder_deps="cuvid"
2958 vp8_mediacodec_decoder_deps="mediacodec"
2959 vp8_qsv_decoder_select="qsvdec vp8_parser"
2960 vp8_rkmpp_decoder_deps="rkmpp"
2961 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2962 vp8_vaapi_encoder_select="vaapi_encode"
2963 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2964 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2965 vp9_cuvid_decoder_deps="cuvid"
2966 vp9_mediacodec_decoder_deps="mediacodec"
2967 vp9_rkmpp_decoder_deps="rkmpp"
2968 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2969 vp9_vaapi_encoder_select="vaapi_encode"
2970 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2971 wmv3_crystalhd_decoder_select="crystalhd"
2972
2973 # parsers
2974 aac_parser_select="adts_header"
2975 h264_parser_select="golomb h264dsp h264parse"
2976 hevc_parser_select="hevcparse"
2977 mpegaudio_parser_select="mpegaudioheader"
2978 mpegvideo_parser_select="mpegvideo"
2979 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2980 vc1_parser_select="vc1dsp"
2981
2982 # bitstream_filters
2983 aac_adtstoasc_bsf_select="adts_header"
2984 filter_units_bsf_select="cbs"
2985 h264_metadata_bsf_deps="const_nan"
2986 h264_metadata_bsf_select="cbs_h264"
2987 h264_redundant_pps_bsf_select="cbs_h264"
2988 hevc_metadata_bsf_select="cbs_h265"
2989 mjpeg2jpeg_bsf_select="jpegtables"
2990 mpeg2_metadata_bsf_select="cbs_mpeg2"
2991 trace_headers_bsf_select="cbs"
2992 vp9_metadata_bsf_select="cbs_vp9"
2993
2994 # external libraries
2995 aac_at_decoder_deps="audiotoolbox"
2996 aac_at_decoder_select="aac_adtstoasc_bsf"
2997 ac3_at_decoder_deps="audiotoolbox"
2998 ac3_at_decoder_select="ac3_parser"
2999 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3000 alac_at_decoder_deps="audiotoolbox"
3001 amr_nb_at_decoder_deps="audiotoolbox"
3002 avisynth_deps_any="libdl LoadLibrary"
3003 avisynth_demuxer_deps="avisynth"
3004 avisynth_demuxer_select="riffdec"
3005 eac3_at_decoder_deps="audiotoolbox"
3006 eac3_at_decoder_select="ac3_parser"
3007 gsm_ms_at_decoder_deps="audiotoolbox"
3008 ilbc_at_decoder_deps="audiotoolbox"
3009 mp1_at_decoder_deps="audiotoolbox"
3010 mp2_at_decoder_deps="audiotoolbox"
3011 mp3_at_decoder_deps="audiotoolbox"
3012 mp1_at_decoder_select="mpegaudioheader"
3013 mp2_at_decoder_select="mpegaudioheader"
3014 mp3_at_decoder_select="mpegaudioheader"
3015 pcm_alaw_at_decoder_deps="audiotoolbox"
3016 pcm_mulaw_at_decoder_deps="audiotoolbox"
3017 qdmc_at_decoder_deps="audiotoolbox"
3018 qdm2_at_decoder_deps="audiotoolbox"
3019 aac_at_encoder_deps="audiotoolbox"
3020 aac_at_encoder_select="audio_frame_queue"
3021 alac_at_encoder_deps="audiotoolbox"
3022 alac_at_encoder_select="audio_frame_queue"
3023 ilbc_at_encoder_deps="audiotoolbox"
3024 ilbc_at_encoder_select="audio_frame_queue"
3025 pcm_alaw_at_encoder_deps="audiotoolbox"
3026 pcm_alaw_at_encoder_select="audio_frame_queue"
3027 pcm_mulaw_at_encoder_deps="audiotoolbox"
3028 pcm_mulaw_at_encoder_select="audio_frame_queue"
3029 chromaprint_muxer_deps="chromaprint"
3030 h264_videotoolbox_encoder_deps="pthreads"
3031 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3032 hevc_videotoolbox_encoder_deps="pthreads"
3033 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3034 libaom_av1_decoder_deps="libaom"
3035 libaom_av1_encoder_deps="libaom"
3036 libcelt_decoder_deps="libcelt"
3037 libcodec2_decoder_deps="libcodec2"
3038 libcodec2_encoder_deps="libcodec2"
3039 libfdk_aac_decoder_deps="libfdk_aac"
3040 libfdk_aac_encoder_deps="libfdk_aac"
3041 libfdk_aac_encoder_select="audio_frame_queue"
3042 libgme_demuxer_deps="libgme"
3043 libgsm_decoder_deps="libgsm"
3044 libgsm_encoder_deps="libgsm"
3045 libgsm_ms_decoder_deps="libgsm"
3046 libgsm_ms_encoder_deps="libgsm"
3047 libilbc_decoder_deps="libilbc"
3048 libilbc_encoder_deps="libilbc"
3049 libkvazaar_encoder_deps="libkvazaar"
3050 libmodplug_demuxer_deps="libmodplug"
3051 libmp3lame_encoder_deps="libmp3lame"
3052 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3053 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3054 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3055 libopencore_amrnb_encoder_select="audio_frame_queue"
3056 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3057 libopenh264_decoder_deps="libopenh264"
3058 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3059 libopenh264_encoder_deps="libopenh264"
3060 libopenjpeg_decoder_deps="libopenjpeg"
3061 libopenjpeg_encoder_deps="libopenjpeg"
3062 libopenmpt_demuxer_deps="libopenmpt"
3063 libopus_decoder_deps="libopus"
3064 libopus_encoder_deps="libopus"
3065 libopus_encoder_select="audio_frame_queue"
3066 librsvg_decoder_deps="librsvg"
3067 libshine_encoder_deps="libshine"
3068 libshine_encoder_select="audio_frame_queue"
3069 libspeex_decoder_deps="libspeex"
3070 libspeex_encoder_deps="libspeex"
3071 libspeex_encoder_select="audio_frame_queue"
3072 libtheora_encoder_deps="libtheora"
3073 libtwolame_encoder_deps="libtwolame"
3074 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3075 libvorbis_decoder_deps="libvorbis"
3076 libvorbis_encoder_deps="libvorbis libvorbisenc"
3077 libvorbis_encoder_select="audio_frame_queue"
3078 libvpx_vp8_decoder_deps="libvpx"
3079 libvpx_vp8_encoder_deps="libvpx"
3080 libvpx_vp9_decoder_deps="libvpx"
3081 libvpx_vp9_encoder_deps="libvpx"
3082 libwavpack_encoder_deps="libwavpack"
3083 libwavpack_encoder_select="audio_frame_queue"
3084 libwebp_encoder_deps="libwebp"
3085 libwebp_anim_encoder_deps="libwebp"
3086 libx262_encoder_deps="libx262"
3087 libx264_encoder_deps="libx264"
3088 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3089 libx264rgb_encoder_select="libx264_encoder"
3090 libx265_encoder_deps="libx265"
3091 libxavs_encoder_deps="libxavs"
3092 libxvid_encoder_deps="libxvid"
3093 libzvbi_teletext_decoder_deps="libzvbi"
3094 videotoolbox_suggest="coreservices"
3095 videotoolbox_deps="corefoundation coremedia corevideo"
3096 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3097
3098 # demuxers / muxers
3099 ac3_demuxer_select="ac3_parser"
3100 aiff_muxer_select="iso_media"
3101 asf_demuxer_select="riffdec"
3102 asf_o_demuxer_select="riffdec"
3103 asf_muxer_select="riffenc"
3104 asf_stream_muxer_select="asf_muxer"
3105 avi_demuxer_select="iso_media riffdec exif"
3106 avi_muxer_select="riffenc"
3107 caf_demuxer_select="iso_media riffdec"
3108 caf_muxer_select="iso_media"
3109 dash_muxer_select="mp4_muxer"
3110 dash_demuxer_deps="libxml2"
3111 dirac_demuxer_select="dirac_parser"
3112 dts_demuxer_select="dca_parser"
3113 dtshd_demuxer_select="dca_parser"
3114 dv_demuxer_select="dvprofile"
3115 dv_muxer_select="dvprofile"
3116 dxa_demuxer_select="riffdec"
3117 eac3_demuxer_select="ac3_parser"
3118 f4v_muxer_select="mov_muxer"
3119 fifo_muxer_deps="threads"
3120 flac_demuxer_select="flac_parser"
3121 hds_muxer_select="flv_muxer"
3122 hls_muxer_select="mpegts_muxer"
3123 hls_muxer_suggest="gcrypt openssl"
3124 image2_alias_pix_demuxer_select="image2_demuxer"
3125 image2_brender_pix_demuxer_select="image2_demuxer"
3126 ipod_muxer_select="mov_muxer"
3127 ismv_muxer_select="mov_muxer"
3128 matroska_audio_muxer_select="matroska_muxer"
3129 matroska_demuxer_select="iso_media riffdec"
3130 matroska_demuxer_suggest="bzlib lzo zlib"
3131 matroska_muxer_select="iso_media riffenc"
3132 mmf_muxer_select="riffenc"
3133 mov_demuxer_select="iso_media riffdec"
3134 mov_demuxer_suggest="zlib"
3135 mov_muxer_select="iso_media riffenc rtpenc_chain"
3136 mp3_demuxer_select="mpegaudio_parser"
3137 mp3_muxer_select="mpegaudioheader"
3138 mp4_muxer_select="mov_muxer"
3139 mpegts_demuxer_select="iso_media"
3140 mpegts_muxer_select="adts_muxer latm_muxer"
3141 mpegtsraw_demuxer_select="mpegts_demuxer"
3142 mxf_d10_muxer_select="mxf_muxer"
3143 mxf_opatom_muxer_select="mxf_muxer"
3144 nut_muxer_select="riffenc"
3145 nuv_demuxer_select="riffdec"
3146 oga_muxer_select="ogg_muxer"
3147 ogg_demuxer_select="dirac_parse"
3148 ogv_muxer_select="ogg_muxer"
3149 opus_muxer_select="ogg_muxer"
3150 psp_muxer_select="mov_muxer"
3151 rtp_demuxer_select="sdp_demuxer"
3152 rtp_muxer_select="golomb"
3153 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3154 rtsp_demuxer_select="http_protocol rtpdec"
3155 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3156 sap_demuxer_select="sdp_demuxer"
3157 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3158 sdp_demuxer_select="rtpdec"
3159 smoothstreaming_muxer_select="ismv_muxer"
3160 spdif_demuxer_select="adts_header"
3161 spdif_muxer_select="adts_header"
3162 spx_muxer_select="ogg_muxer"
3163 swf_demuxer_suggest="zlib"
3164 tak_demuxer_select="tak_parser"
3165 tg2_muxer_select="mov_muxer"
3166 tgp_muxer_select="mov_muxer"
3167 vobsub_demuxer_select="mpegps_demuxer"
3168 w64_demuxer_select="wav_demuxer"
3169 w64_muxer_select="wav_muxer"
3170 wav_demuxer_select="riffdec"
3171 wav_muxer_select="riffenc"
3172 webm_muxer_select="iso_media riffenc"
3173 webm_dash_manifest_demuxer_select="matroska_demuxer"
3174 wtv_demuxer_select="mpegts_demuxer riffdec"
3175 wtv_muxer_select="mpegts_muxer riffenc"
3176 xmv_demuxer_select="riffdec"
3177 xwma_demuxer_select="riffdec"
3178
3179 # indevs / outdevs
3180 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3181 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3182 alsa_indev_deps="alsa"
3183 alsa_outdev_deps="alsa"
3184 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3185 avfoundation_indev_suggest="coregraphics applicationservices"
3186 avfoundation_indev_extralibs="-framework Foundation"
3187 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3188 caca_outdev_deps="libcaca"
3189 decklink_deps_any="libdl LoadLibrary"
3190 decklink_indev_deps="decklink threads"
3191 decklink_indev_extralibs="-lstdc++"
3192 decklink_outdev_deps="decklink threads"
3193 decklink_outdev_extralibs="-lstdc++"
3194 libndi_newtek_indev_deps="libndi_newtek"
3195 libndi_newtek_indev_extralibs="-lndi"
3196 libndi_newtek_outdev_deps="libndi_newtek"
3197 libndi_newtek_outdev_extralibs="-lndi"
3198 dshow_indev_deps="IBaseFilter"
3199 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3200 fbdev_indev_deps="linux_fb_h"
3201 fbdev_outdev_deps="linux_fb_h"
3202 gdigrab_indev_deps="CreateDIBSection"
3203 gdigrab_indev_extralibs="-lgdi32"
3204 gdigrab_indev_select="bmp_decoder"
3205 iec61883_indev_deps="libiec61883"
3206 jack_indev_deps="libjack"
3207 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3208 kmsgrab_indev_deps="libdrm"
3209 lavfi_indev_deps="avfilter"
3210 libcdio_indev_deps="libcdio"
3211 libdc1394_indev_deps="libdc1394"
3212 openal_indev_deps="openal"
3213 opengl_outdev_deps="opengl"
3214 oss_indev_deps_any="sys_soundcard_h"
3215 oss_outdev_deps_any="sys_soundcard_h"
3216 pulse_indev_deps="libpulse"
3217 pulse_outdev_deps="libpulse"
3218 sdl2_outdev_deps="sdl2"
3219 sndio_indev_deps="sndio"
3220 sndio_outdev_deps="sndio"
3221 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3222 v4l2_indev_suggest="libv4l2"
3223 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3224 v4l2_outdev_suggest="libv4l2"
3225 vfwcap_indev_deps="vfw32 vfwcap_defines"
3226 xcbgrab_indev_deps="libxcb"
3227 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3228 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3229 xv_outdev_extralibs="-lXv -lX11 -lXext"
3230
3231 # protocols
3232 async_protocol_deps="threads"
3233 bluray_protocol_deps="libbluray"
3234 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3235 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3236 ffrtmpcrypt_protocol_select="tcp_protocol"
3237 ffrtmphttp_protocol_conflict="librtmp_protocol"
3238 ffrtmphttp_protocol_select="http_protocol"
3239 ftp_protocol_select="tcp_protocol"
3240 gopher_protocol_select="network"
3241 http_protocol_select="tcp_protocol"
3242 http_protocol_suggest="zlib"
3243 httpproxy_protocol_select="tcp_protocol"
3244 httpproxy_protocol_suggest="zlib"
3245 https_protocol_select="tls_protocol"
3246 https_protocol_suggest="zlib"
3247 icecast_protocol_select="http_protocol"
3248 librtmp_protocol_deps="librtmp"
3249 librtmpe_protocol_deps="librtmp"
3250 librtmps_protocol_deps="librtmp"
3251 librtmpt_protocol_deps="librtmp"
3252 librtmpte_protocol_deps="librtmp"
3253 libsmbclient_protocol_deps="libsmbclient gplv3"
3254 libssh_protocol_deps="libssh"
3255 libtls_conflict="openssl gnutls"
3256 mmsh_protocol_select="http_protocol"
3257 mmst_protocol_select="network"
3258 libsrt_protocol_deps="libsrt"
3259 libsrt_protocol_select="network"
3260 rtmp_protocol_conflict="librtmp_protocol"
3261 rtmp_protocol_select="tcp_protocol"
3262 rtmp_protocol_suggest="zlib"
3263 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3264 rtmpe_protocol_suggest="zlib"
3265 rtmps_protocol_conflict="librtmp_protocol"
3266 rtmps_protocol_select="tls_protocol"
3267 rtmps_protocol_suggest="zlib"
3268 rtmpt_protocol_select="ffrtmphttp_protocol"
3269 rtmpt_protocol_suggest="zlib"
3270 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3271 rtmpte_protocol_suggest="zlib"
3272 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3273 rtmpts_protocol_suggest="zlib"
3274 rtp_protocol_select="udp_protocol"
3275 schannel_conflict="openssl gnutls libtls"
3276 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3277 sctp_protocol_select="network"
3278 securetransport_conflict="openssl gnutls libtls"
3279 srtp_protocol_select="rtp_protocol srtp"
3280 tcp_protocol_select="network"
3281 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls"
3282 tls_protocol_select="tcp_protocol"
3283 udp_protocol_select="network"
3284 udplite_protocol_select="network"
3285 unix_protocol_deps="sys_un_h"
3286 unix_protocol_select="network"
3287
3288 # filters
3289 afftfilt_filter_deps="avcodec"
3290 afftfilt_filter_select="fft"
3291 afir_filter_deps="avcodec"
3292 afir_filter_select="fft"
3293 amovie_filter_deps="avcodec avformat"
3294 aresample_filter_deps="swresample"
3295 ass_filter_deps="libass"
3296 atempo_filter_deps="avcodec"
3297 atempo_filter_select="rdft"
3298 avgblur_opencl_filter_deps="opencl"
3299 azmq_filter_deps="libzmq"
3300 blackframe_filter_deps="gpl"
3301 boxblur_filter_deps="gpl"
3302 bs2b_filter_deps="libbs2b"
3303 colormatrix_filter_deps="gpl"
3304 convolution_opencl_filter_deps="opencl"
3305 convolve_filter_deps="avcodec"
3306 convolve_filter_select="fft"
3307 coreimage_filter_deps="coreimage appkit"
3308 coreimage_filter_extralibs="-framework OpenGL"
3309 coreimagesrc_filter_deps="coreimage appkit"
3310 coreimagesrc_filter_extralibs="-framework OpenGL"
3311 cover_rect_filter_deps="avcodec avformat gpl"
3312 cropdetect_filter_deps="gpl"
3313 deconvolve_filter_deps="avcodec"
3314 deconvolve_filter_select="fft"
3315 deinterlace_qsv_filter_deps="libmfx"
3316 deinterlace_vaapi_filter_deps="vaapi"
3317 delogo_filter_deps="gpl"
3318 denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3319 deshake_filter_select="pixelutils"
3320 drawtext_filter_deps="libfreetype"
3321 drawtext_filter_suggest="libfontconfig libfribidi"
3322 elbg_filter_deps="avcodec"
3323 eq_filter_deps="gpl"
3324 fftfilt_filter_deps="avcodec"
3325 fftfilt_filter_select="rdft"
3326 find_rect_filter_deps="avcodec avformat gpl"
3327 firequalizer_filter_deps="avcodec"
3328 firequalizer_filter_select="rdft"
3329 flite_filter_deps="libflite"
3330 framerate_filter_select="pixelutils"
3331 frei0r_filter_deps="frei0r libdl"
3332 frei0r_src_filter_deps="frei0r libdl"
3333 fspp_filter_deps="gpl"
3334 geq_filter_deps="gpl"
3335 histeq_filter_deps="gpl"
3336 hqdn3d_filter_deps="gpl"
3337 interlace_filter_deps="gpl"
3338 kerndeint_filter_deps="gpl"
3339 ladspa_filter_deps="ladspa libdl"
3340 lv2_filter_deps="lv2"
3341 mcdeint_filter_deps="avcodec gpl"
3342 movie_filter_deps="avcodec avformat"
3343 mpdecimate_filter_deps="gpl"
3344 mpdecimate_filter_select="pixelutils"
3345 mptestsrc_filter_deps="gpl"
3346 negate_filter_deps="lut_filter"
3347 nnedi_filter_deps="gpl"
3348 ocr_filter_deps="libtesseract"
3349 ocv_filter_deps="libopencv"
3350 openclsrc_filter_deps="opencl"
3351 overlay_opencl_filter_deps="opencl"
3352 overlay_qsv_filter_deps="libmfx"
3353 overlay_qsv_filter_select="qsvvpp"
3354 owdenoise_filter_deps="gpl"
3355 pan_filter_deps="swresample"
3356 perspective_filter_deps="gpl"
3357 phase_filter_deps="gpl"
3358 pp7_filter_deps="gpl"
3359 pp_filter_deps="gpl postproc"
3360 procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3361 program_opencl_filter_deps="opencl"
3362 pullup_filter_deps="gpl"
3363 removelogo_filter_deps="avcodec avformat swscale"
3364 repeatfields_filter_deps="gpl"
3365 resample_filter_deps="avresample"
3366 rubberband_filter_deps="librubberband"
3367 sab_filter_deps="gpl swscale"
3368 scale2ref_filter_deps="swscale"
3369 scale_filter_deps="swscale"
3370 scale_qsv_filter_deps="libmfx"
3371 select_filter_select="pixelutils"
3372 sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3373 showcqt_filter_deps="avcodec avformat swscale"
3374 showcqt_filter_suggest="libfontconfig libfreetype"
3375 showcqt_filter_select="fft"
3376 showfreqs_filter_deps="avcodec"
3377 showfreqs_filter_select="fft"
3378 showspectrum_filter_deps="avcodec"
3379 showspectrum_filter_select="fft"
3380 showspectrumpic_filter_deps="avcodec"
3381 showspectrumpic_filter_select="fft"
3382 signature_filter_deps="gpl avcodec avformat"
3383 smartblur_filter_deps="gpl swscale"
3384 sofalizer_filter_deps="libmysofa avcodec"
3385 sofalizer_filter_select="fft"
3386 spectrumsynth_filter_deps="avcodec"
3387 spectrumsynth_filter_select="fft"
3388 spp_filter_deps="gpl avcodec"
3389 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3390 stereo3d_filter_deps="gpl"
3391 subtitles_filter_deps="avformat avcodec libass"
3392 super2xsai_filter_deps="gpl"
3393 pixfmts_super2xsai_test_deps="super2xsai_filter"
3394 tinterlace_filter_deps="gpl"
3395 tinterlace_merge_test_deps="tinterlace_filter"
3396 tinterlace_pad_test_deps="tinterlace_filter"
3397 tonemap_filter_deps="const_nan"
3398 unsharp_opencl_filter_deps="opencl"
3399 uspp_filter_deps="gpl avcodec"
3400 vaguedenoiser_filter_deps="gpl"
3401 vidstabdetect_filter_deps="libvidstab"
3402 vidstabtransform_filter_deps="libvidstab"
3403 libvmaf_filter_deps="libvmaf pthreads"
3404 zmq_filter_deps="libzmq"
3405 zoompan_filter_deps="swscale"
3406 zscale_filter_deps="libzimg const_nan"
3407 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3408 vpp_qsv_filter_deps="libmfx"
3409 vpp_qsv_filter_select="qsvvpp"
3410
3411 # examples
3412 avio_dir_cmd_deps="avformat avutil"
3413 avio_reading_deps="avformat avcodec avutil"
3414 decode_audio_example_deps="avcodec avutil"
3415 decode_video_example_deps="avcodec avutil"
3416 demuxing_decoding_example_deps="avcodec avformat avutil"
3417 encode_audio_example_deps="avcodec avutil"
3418 encode_video_example_deps="avcodec avutil"
3419 extract_mvs_example_deps="avcodec avformat avutil"
3420 filter_audio_example_deps="avfilter avutil"
3421 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3422 filtering_video_example_deps="avfilter avcodec avformat avutil"
3423 http_multiclient_example_deps="avformat avutil fork"
3424 hw_decode_example_deps="avcodec avformat avutil"
3425 metadata_example_deps="avformat avutil"
3426 muxing_example_deps="avcodec avformat avutil swscale"
3427 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3428 remuxing_example_deps="avcodec avformat avutil"
3429 resampling_audio_example_deps="avutil swresample"
3430 scaling_video_example_deps="avutil swscale"
3431 transcode_aac_example_deps="avcodec avformat swresample"
3432 transcoding_example_deps="avfilter avcodec avformat avutil"
3433 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3434 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3435
3436 # EXTRALIBS_LIST
3437 cpu_init_extralibs="pthreads_extralibs"
3438 cws2fws_extralibs="zlib_extralibs"
3439
3440 # libraries, in linking order
3441 avcodec_deps="avutil"
3442 avcodec_suggest="libm"
3443 avcodec_select="null_bsf"
3444 avdevice_deps="avformat avcodec avutil"
3445 avdevice_suggest="libm"
3446 avfilter_deps="avutil"
3447 avfilter_suggest="libm"
3448 avformat_deps="avcodec avutil"
3449 avformat_suggest="libm network zlib"
3450 avresample_deps="avutil"
3451 avresample_suggest="libm"
3452 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3453 postproc_deps="avutil gpl"
3454 postproc_suggest="libm"
3455 swresample_deps="avutil"
3456 swresample_suggest="libm libsoxr"
3457 swscale_deps="avutil"
3458 swscale_suggest="libm"
3459
3460 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3461 avfilter_extralibs="pthreads_extralibs"
3462 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3463
3464 # programs
3465 ffmpeg_deps="avcodec avfilter avformat"
3466 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3467                null_filter
3468                trim_filter"
3469 ffmpeg_suggest="ole32 psapi shell32"
3470 ffplay_deps="avcodec avformat swscale swresample sdl2"
3471 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3472 ffplay_suggest="shell32"
3473 ffprobe_deps="avcodec avformat"
3474 ffprobe_suggest="shell32"
3475
3476 # documentation
3477 podpages_deps="perl"
3478 manpages_deps="perl pod2man"
3479 htmlpages_deps="perl"
3480 htmlpages_deps_any="makeinfo_html texi2html"
3481 txtpages_deps="perl makeinfo"
3482 doc_deps_any="manpages htmlpages podpages txtpages"
3483
3484 # default parameters
3485
3486 logfile="ffbuild/config.log"
3487
3488 # installation paths
3489 prefix_default="/usr/local"
3490 bindir_default='${prefix}/bin'
3491 datadir_default='${prefix}/share/ffmpeg'
3492 docdir_default='${prefix}/share/doc/ffmpeg'
3493 incdir_default='${prefix}/include'
3494 libdir_default='${prefix}/lib'
3495 mandir_default='${prefix}/share/man'
3496
3497 # toolchain
3498 ar_default="ar"
3499 cc_default="gcc"
3500 cxx_default="g++"
3501 host_cc_default="gcc"
3502 doxygen_default="doxygen"
3503 install="install"
3504 ln_s_default="ln -s -f"
3505 nm_default="nm -g"
3506 pkg_config_default=pkg-config
3507 ranlib_default="ranlib"
3508 strip_default="strip"
3509 version_script='--version-script'
3510 objformat="elf32"
3511 x86asmexe_default="nasm"
3512 windres_default="windres"
3513 nvcc_default="nvcc"
3514 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3515 striptype="direct"
3516
3517 # OS
3518 target_os_default=$(tolower $(uname -s))
3519 host_os=$target_os_default
3520
3521 # machine
3522 if test "$target_os_default" = aix; then
3523     arch_default=$(uname -p)
3524     strip_default="strip -X32_64"
3525 else
3526     arch_default=$(uname -m)
3527 fi
3528 cpu="generic"
3529 intrinsics="none"
3530
3531 # configurable options
3532 enable $PROGRAM_LIST
3533 enable $DOCUMENT_LIST
3534 enable $EXAMPLE_LIST
3535 enable $(filter_out avresample $LIBRARY_LIST)
3536 enable stripping
3537
3538 enable asm
3539 enable debug
3540 enable doc
3541 enable faan faandct faanidct
3542 enable optimizations
3543 enable runtime_cpudetect
3544 enable safe_bitstream_reader
3545 enable static
3546 enable swscale_alpha
3547 enable valgrind_backtrace
3548
3549 sws_max_filter_size_default=256
3550 set_default sws_max_filter_size
3551
3552 # internal components are enabled by default
3553 enable $EXTRALIBS_LIST
3554
3555 # Avoid external, non-system, libraries getting enabled by dependency resolution
3556 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3557
3558 # build settings
3559 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3560 LIBPREF="lib"
3561 LIBSUF=".a"
3562 FULLNAME='$(NAME)$(BUILDSUF)'
3563 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3564 SLIBPREF="lib"
3565 SLIBSUF=".so"
3566 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3567 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3568 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3569 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3570 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3571 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3572 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3573
3574 asflags_filter=echo
3575 cflags_filter=echo
3576 ldflags_filter=echo
3577
3578 AS_C='-c'
3579 AS_O='-o $@'
3580 CC_C='-c'
3581 CC_E='-E -o $@'
3582 CC_O='-o $@'
3583 CXX_C='-c'
3584 CXX_O='-o $@'
3585 OBJCC_C='-c'
3586 OBJCC_E='-E -o $@'
3587 OBJCC_O='-o $@'
3588 X86ASM_O='-o $@'
3589 LD_O='-o $@'
3590 LD_LIB='-l%'
3591 LD_PATH='-L'
3592 HOSTCC_C='-c'
3593 HOSTCC_E='-E -o $@'
3594 HOSTCC_O='-o $@'
3595 HOSTLD_O='-o $@'
3596 NVCC_C='-c'
3597 NVCC_O='-o $@'
3598
3599 host_extralibs='-lm'
3600 host_cflags_filter=echo
3601 host_ldflags_filter=echo
3602
3603 target_path='$(CURDIR)'
3604
3605 # since the object filename is not given with the -MM flag, the compiler
3606 # is only able to print the basename, and we must add the path ourselves
3607 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3608 DEPFLAGS='-MM'
3609
3610 mkdir -p ffbuild
3611
3612 # find source path
3613 if test -f configure; then
3614     source_path=.
3615 else
3616     source_path=$(cd $(dirname "$0"); pwd)
3617     case "$source_path" in
3618         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3619     esac
3620     test -e "$source_path/config.h" &&
3621         die "Out of tree builds are impossible with config.h in source dir."
3622 fi
3623
3624 for v in "$@"; do
3625     r=${v#*=}
3626     l=${v%"$r"}
3627     r=$(sh_quote "$r")
3628     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3629 done
3630
3631 find_things_extern(){
3632     thing=$1
3633     pattern=$2
3634     file=$source_path/$3
3635     out=${4:-$thing}
3636     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3637 }
3638
3639 find_filters_extern(){
3640     file=$source_path/$1
3641     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file
3642     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file
3643 }
3644
3645 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3646 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3647 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3648 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3649 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3650 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3651 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3652 CODEC_LIST="
3653     $ENCODER_LIST
3654     $DECODER_LIST
3655 "
3656 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parser.c)
3657 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3658 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3659 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3660
3661 AVCODEC_COMPONENTS_LIST="
3662     $BSF_LIST
3663     $DECODER_LIST
3664     $ENCODER_LIST
3665     $HWACCEL_LIST
3666     $PARSER_LIST
3667 "
3668
3669 AVDEVICE_COMPONENTS_LIST="
3670     $INDEV_LIST
3671     $OUTDEV_LIST
3672 "
3673
3674 AVFILTER_COMPONENTS_LIST="
3675     $FILTER_LIST
3676 "
3677
3678 AVFORMAT_COMPONENTS_LIST="
3679     $DEMUXER_LIST
3680     $MUXER_LIST
3681     $PROTOCOL_LIST
3682 "
3683
3684 ALL_COMPONENTS="
3685     $AVCODEC_COMPONENTS_LIST
3686     $AVDEVICE_COMPONENTS_LIST
3687     $AVFILTER_COMPONENTS_LIST
3688     $AVFORMAT_COMPONENTS_LIST
3689 "
3690
3691 for n in $COMPONENT_LIST; do
3692     v=$(toupper ${n%s})_LIST
3693     eval enable \$$v
3694     eval ${n}_if_any="\$$v"
3695 done
3696
3697 enable $ARCH_EXT_LIST
3698
3699 die_unknown(){
3700     echo "Unknown option \"$1\"."
3701     echo "See $0 --help for available options."
3702     exit 1
3703 }
3704
3705 print_in_columns() {
3706     cols=$(expr $ncols / 24)
3707     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3708 }
3709
3710 show_list() {
3711     suffix=_$1
3712     shift
3713     echo $* | sed s/$suffix//g | print_in_columns
3714     exit 0
3715 }
3716
3717 rand_list(){
3718     IFS=', '
3719     set -- $*
3720     unset IFS
3721     for thing; do
3722         comp=${thing%:*}
3723         prob=${thing#$comp}
3724         prob=${prob#:}
3725         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3726         echo "prob ${prob:-0.5}"
3727         printf '%s\n' $comp
3728     done
3729 }
3730
3731 do_random(){
3732     action=$1
3733     shift
3734     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3735     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3736 }
3737
3738 for opt do
3739     optval="${opt#*=}"
3740     case "$opt" in
3741         --extra-ldflags=*)
3742             add_ldflags $optval
3743         ;;
3744         --extra-ldexeflags=*)
3745             add_ldexeflags $optval
3746         ;;
3747         --extra-ldsoflags=*)
3748             add_ldsoflags $optval
3749         ;;
3750         --extra-ldlibflags=*)
3751             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3752                  "removed in the future. Use --extra-ldsoflags instead."
3753             add_ldsoflags $optval
3754         ;;
3755         --extra-libs=*)
3756             add_extralibs $optval
3757         ;;
3758         --disable-devices)
3759             disable $INDEV_LIST $OUTDEV_LIST
3760         ;;
3761         --enable-debug=*)
3762             debuglevel="$optval"
3763         ;;
3764         --disable-programs)
3765             disable $PROGRAM_LIST
3766         ;;
3767         --disable-everything)
3768             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3769         ;;
3770         --disable-all)
3771             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3772             disable $LIBRARY_LIST $PROGRAM_LIST doc
3773             enable avutil
3774         ;;
3775         --enable-random|--disable-random)
3776             action=${opt%%-random}
3777             do_random ${action#--} $COMPONENT_LIST
3778         ;;
3779         --enable-random=*|--disable-random=*)
3780             action=${opt%%-random=*}
3781             do_random ${action#--} $optval
3782         ;;
3783         --enable-sdl)
3784             enable sdl2
3785         ;;
3786         --enable-*=*|--disable-*=*)
3787             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3788             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3789             eval list=\$$(toupper $thing)_LIST
3790             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3791             list=$(filter "$name" $list)
3792             [ "$list" = "" ] && warn "Option $opt did not match anything"
3793             $action $list
3794         ;;
3795         --enable-yasm|--disable-yasm)
3796             warn "The ${opt} option is only provided for compatibility and will be\n"\
3797                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3798             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3799         ;;
3800         --yasmexe=*)
3801             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3802                  "removed in the future. Use --x86asmexe instead."
3803             x86asmexe="$optval"
3804         ;;
3805         --enable-?*|--disable-?*)
3806             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3807             if is_in $option $COMPONENT_LIST; then
3808                 test $action = disable && action=unset
3809                 eval $action \$$(toupper ${option%s})_LIST
3810             elif is_in $option $CMDLINE_SELECT; then
3811                 $action $option
3812             else
3813                 die_unknown $opt
3814             fi
3815         ;;
3816         --list-*)
3817             NAME="${opt#--list-}"
3818             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3819             NAME=${NAME%s}
3820             eval show_list $NAME \$$(toupper $NAME)_LIST
3821         ;;
3822         --help|-h) show_help
3823         ;;
3824         --quiet|-q) quiet=yes
3825         ;;
3826         --fatal-warnings) enable fatal_warnings
3827         ;;
3828         --libfuzzer=*)
3829             libfuzzer_path="$optval"
3830         ;;
3831         *)
3832             optname="${opt%%=*}"
3833             optname="${optname#--}"
3834             optname=$(echo "$optname" | sed 's/-/_/g')
3835             if is_in $optname $CMDLINE_SET; then
3836                 eval $optname='$optval'
3837             elif is_in $optname $CMDLINE_APPEND; then
3838                 append $optname "$optval"
3839             else
3840                 die_unknown $opt
3841             fi
3842         ;;
3843     esac
3844 done
3845
3846 for e in $env; do
3847     eval "export $e"
3848 done
3849
3850 if disabled autodetect; then
3851
3852     # Unless iconv is explicitely disabled by the user, we still want to probe
3853     # for the iconv from the libc.
3854     disabled iconv || enable libc_iconv
3855
3856     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3857     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3858 fi
3859 # Mark specifically enabled, but normally autodetected libraries as requested.
3860 for lib in $AUTODETECT_LIBS; do
3861     enabled $lib && request $lib
3862 done
3863 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3864 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3865 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3866
3867 disabled logging && logfile=/dev/null
3868
3869 # command line configuration sanity checks
3870
3871 # we need to build at least one lib type
3872 if ! enabled_any static shared; then
3873     cat <<EOF
3874 At least one library type must be built.
3875 Specify --enable-static to build the static libraries or --enable-shared to
3876 build the shared libraries as well. To only build the shared libraries specify
3877 --disable-static in addition to --enable-shared.
3878 EOF
3879     exit 1
3880 fi
3881
3882 die_license_disabled() {
3883     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3884 }
3885
3886 die_license_disabled_gpl() {
3887     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3888 }
3889
3890 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3891 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3892
3893 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3894 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3895
3896 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3897
3898 if enabled nonfree; then
3899     license="nonfree and unredistributable"
3900 elif enabled gplv3; then
3901     license="GPL version 3 or later"
3902 elif enabled lgplv3; then
3903     license="LGPL version 3 or later"
3904 elif enabled gpl; then
3905     license="GPL version 2 or later"
3906 else
3907     license="LGPL version 2.1 or later"
3908 fi
3909
3910 enabled_all gnutls openssl &&
3911     die "GnuTLS and OpenSSL must not be enabled at the same time."
3912
3913 # Disable all the library-specific components if the library itself
3914 # is disabled, see AVCODEC_LIST and following _LIST variables.
3915
3916 disable_components(){
3917     disabled ${1} && disable $(
3918         eval components="\$$(toupper ${1})_COMPONENTS"
3919         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3920     )
3921 }
3922
3923 map 'disable_components $v' $LIBRARY_LIST
3924
3925 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3926 set >> $logfile
3927
3928 test -n "$valgrind" && toolchain="valgrind-memcheck"
3929
3930 enabled ossfuzz && {
3931     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3932     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3933 }
3934
3935 case "$toolchain" in
3936     *-asan)
3937         cc_default="${toolchain%-asan}"
3938         add_cflags  -fsanitize=address
3939         add_ldflags -fsanitize=address
3940     ;;
3941     *-msan)
3942         cc_default="${toolchain%-msan}"
3943         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3944         add_ldflags -fsanitize=memory
3945     ;;
3946     *-tsan)
3947         cc_default="${toolchain%-tsan}"
3948         add_cflags  -fsanitize=thread -fPIE
3949         add_ldflags -fsanitize=thread -pie
3950         case "$toolchain" in
3951             gcc-tsan)
3952                 add_cflags  -fPIC
3953                 add_ldflags -fPIC
3954                 ;;
3955         esac
3956     ;;
3957     *-usan)
3958         cc_default="${toolchain%-usan}"
3959         add_cflags  -fsanitize=undefined
3960         add_ldflags -fsanitize=undefined
3961     ;;
3962     valgrind-*)
3963         target_exec_default="valgrind"
3964         case "$toolchain" in
3965             valgrind-massif)
3966                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3967                 ;;
3968             valgrind-memcheck)
3969                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3970                 ;;
3971         esac
3972     ;;
3973     msvc)
3974         # Check whether the current MSVC version needs the C99 converter.
3975         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3976         # support enough of C99 to build ffmpeg. Default to the new
3977         # behaviour if the regexp was unable to match anything, since this
3978         # successfully parses the version number of existing supported
3979         # versions that require the converter (MSVC 2010 and 2012).
3980         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3981         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3982             cc_default="cl"
3983             cxx_default="cl"
3984         else
3985             cc_default="c99wrap cl"
3986             cxx_default="c99wrap cl"
3987         fi
3988         ld_default="$source_path/compat/windows/mslink"
3989         nm_default="dumpbin -symbols"
3990         ar_default="lib"
3991         case "$arch" in
3992         aarch64|arm64)
3993             as_default="armasm64"
3994             ;;
3995         arm*)
3996             as_default="armasm"
3997             ;;
3998         esac
3999         target_os_default="win32"
4000         # Use a relative path for TMPDIR. This makes sure all the
4001         # ffconf temp files are written with a relative path, avoiding
4002         # issues with msys/win32 path conversion for MSVC parameters
4003         # such as -Fo<file> or -out:<file>.
4004         TMPDIR=.
4005     ;;
4006     icl)
4007         cc_default="icl"
4008         ld_default="xilink"
4009         nm_default="dumpbin -symbols"
4010         ar_default="xilib"
4011         target_os_default="win32"
4012         TMPDIR=.
4013     ;;
4014     gcov)
4015         add_cflags  -fprofile-arcs -ftest-coverage
4016         add_ldflags -fprofile-arcs -ftest-coverage
4017     ;;
4018     llvm-cov)
4019         add_cflags -fprofile-arcs -ftest-coverage
4020         add_ldflags --coverage
4021     ;;
4022     hardened)
4023         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4024         add_cflags   -fno-strict-overflow -fstack-protector-all
4025         add_ldflags  -Wl,-z,relro -Wl,-z,now
4026         add_cflags   -fPIE
4027         add_ldexeflags -fPIE -pie
4028     ;;
4029     ?*)
4030         die "Unknown toolchain $toolchain"
4031     ;;
4032 esac
4033
4034 if test -n "$cross_prefix"; then
4035     test -n "$arch" && test -n "$target_os" ||
4036         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4037     enable cross_compile
4038 fi
4039
4040 ar_default="${cross_prefix}${ar_default}"
4041 cc_default="${cross_prefix}${cc_default}"
4042 cxx_default="${cross_prefix}${cxx_default}"
4043 nm_default="${cross_prefix}${nm_default}"
4044 pkg_config_default="${cross_prefix}${pkg_config_default}"
4045 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4046     ranlib_default="${cross_prefix}${ranlib_default} -D"
4047 else
4048     ranlib_default="${cross_prefix}${ranlib_default}"
4049 fi
4050 strip_default="${cross_prefix}${strip_default}"
4051 windres_default="${cross_prefix}${windres_default}"
4052
4053 sysinclude_default="${sysroot}/usr/include"
4054
4055 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4056     target_exec target_os x86asmexe nvcc
4057 enabled cross_compile || host_cc_default=$cc
4058 set_default host_cc
4059
4060 pkg_config_fail_message=""
4061 if ! $pkg_config --version >/dev/null 2>&1; then
4062     warn "$pkg_config not found, library detection may fail."
4063     pkg_config=false
4064 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4065     pkg_config_fail_message="
4066 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4067 fi
4068
4069 if test $doxygen != $doxygen_default && \
4070   ! $doxygen --version >/dev/null 2>&1; then
4071     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4072 fi
4073
4074 exesuf() {
4075     case $1 in
4076         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4077     esac
4078 }
4079
4080 EXESUF=$(exesuf $target_os)
4081 HOSTEXESUF=$(exesuf $host_os)
4082
4083 # set temporary file name
4084 : ${TMPDIR:=$TEMPDIR}
4085 : ${TMPDIR:=$TMP}
4086 : ${TMPDIR:=/tmp}
4087
4088 if [ -n "$tempprefix" ] ; then
4089     mktemp(){
4090         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4091         echo "$tmpname"
4092         mkdir "$tmpname"
4093     }
4094 elif ! test_cmd mktemp -u XXXXXX; then
4095     # simple replacement for missing mktemp
4096     # NOT SAFE FOR GENERAL USE
4097     mktemp(){
4098         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4099         echo "$tmpname"
4100         mkdir "$tmpname"
4101     }
4102 fi
4103
4104 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4105     die "Unable to create temporary directory in $TMPDIR."
4106
4107 tmpfile(){
4108     tmp="${FFTMPDIR}/test"$2
4109     (set -C; exec > $tmp) 2> /dev/null ||
4110         die "Unable to create temporary file in $FFTMPDIR."
4111     eval $1=$tmp
4112 }
4113
4114 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4115 trap 'exit 2' INT
4116
4117 tmpfile TMPASM .asm
4118 tmpfile TMPC   .c
4119 tmpfile TMPCPP .cpp
4120 tmpfile TMPE   $EXESUF
4121 tmpfile TMPH   .h
4122 tmpfile TMPM   .m
4123 tmpfile TMPO   .o
4124 tmpfile TMPS   .S
4125 tmpfile TMPSH  .sh
4126 tmpfile TMPV   .ver
4127
4128 unset -f mktemp
4129
4130 chmod +x $TMPE
4131
4132 # make sure we can execute files in $TMPDIR
4133 cat > $TMPSH 2>> $logfile <<EOF
4134 #! /bin/sh
4135 EOF
4136 chmod +x $TMPSH >> $logfile 2>&1
4137 if ! $TMPSH >> $logfile 2>&1; then
4138     cat <<EOF
4139 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4140 variable to another directory and make sure that it is not mounted noexec.
4141 EOF
4142     die "Sanity test failed."
4143 fi
4144
4145 armasm_flags(){
4146     for flag; do
4147         case $flag in
4148             # Filter out MSVC cl.exe options from cflags that shouldn't
4149             # be passed to gas-preprocessor
4150             -M[TD]*)                                            ;;
4151             *)                  echo $flag                      ;;
4152         esac
4153    done
4154 }
4155
4156 cparser_flags(){
4157     for flag; do
4158         case $flag in
4159             -Wno-switch)             echo -Wno-switch-enum ;;
4160             -Wno-format-zero-length) ;;
4161             -Wdisabled-optimization) ;;
4162             -Wno-pointer-sign)       echo -Wno-other ;;
4163             *)                       echo $flag ;;
4164         esac
4165     done
4166 }
4167
4168 msvc_common_flags(){
4169     for flag; do
4170         case $flag in
4171             # In addition to specifying certain flags under the compiler
4172             # specific filters, they must be specified here as well or else the
4173             # generic catch all at the bottom will print the original flag.
4174             -Wall)                ;;
4175             -Wextra)              ;;
4176             -std=c99)             ;;
4177             # Common flags
4178             -fomit-frame-pointer) ;;
4179             -g)                   echo -Z7 ;;
4180             -fno-math-errno)      ;;
4181             -fno-common)          ;;
4182             -fno-signed-zeros)    ;;
4183             -fPIC)         &nb