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