avfilter/vf_framerate: unify luma and chroma blending
[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-libass          enable libass subtitles rendering,
221                            needed for subtitles and ass filter [no]
222   --enable-libbluray       enable BluRay reading using libbluray [no]
223   --enable-libbs2b         enable bs2b DSP library [no]
224   --enable-libcaca         enable textual display using libcaca [no]
225   --enable-libcelt         enable CELT decoding via libcelt [no]
226   --enable-libcdio         enable audio CD grabbing with libcdio [no]
227   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
228                            and libraw1394 [no]
229   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
230   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
231   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
232   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
233   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
234   --enable-libgme          enable Game Music Emu via libgme [no]
235   --enable-libgsm          enable GSM de/encoding via libgsm [no]
236   --enable-libiec61883     enable iec61883 via libiec61883 [no]
237   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
238   --enable-libjack         enable JACK audio sound server [no]
239   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
240   --enable-libmodplug      enable ModPlug via libmodplug [no]
241   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
242   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
243   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
244   --enable-libopencv       enable video filtering via libopencv [no]
245   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
246   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
247   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
248   --enable-libopus         enable Opus de/encoding via libopus [no]
249   --enable-libpulse        enable Pulseaudio input via libpulse [no]
250   --enable-librsvg         enable SVG rasterization via librsvg [no]
251   --enable-librubberband   enable rubberband needed for rubberband filter [no]
252   --enable-librtmp         enable RTMP[E] support via librtmp [no]
253   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
254   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
255   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
256   --enable-libsoxr         enable Include libsoxr resampling [no]
257   --enable-libspeex        enable Speex de/encoding via libspeex [no]
258   --enable-libssh          enable SFTP protocol via libssh [no]
259   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
260   --enable-libtheora       enable Theora encoding via libtheora [no]
261   --enable-libtls          enable LibreSSL (via libtls), needed for https support
262                            if openssl or gnutls is not used [no]
263   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
264   --enable-libv4l2         enable libv4l2/v4l-utils [no]
265   --enable-libvidstab      enable video stabilization using vid.stab [no]
266   --enable-libvmaf         enable vmaf filter via libvmaf [no]
267   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
268   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
269                            native implementation exists [no]
270   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
271   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
272   --enable-libwebp         enable WebP encoding via libwebp [no]
273   --enable-libx264         enable H.264 encoding via x264 [no]
274   --enable-libx265         enable HEVC encoding via x265 [no]
275   --enable-libxavs         enable AVS encoding via xavs [no]
276   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
277   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
278   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
279   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
280   --enable-libxvid         enable Xvid encoding via xvidcore,
281                            native MPEG-4/Xvid encoder exists [no]
282   --enable-libxml2         enable XML parsing using the C library libxml2 [no]
283   --enable-libzimg         enable z.lib, needed for zscale filter [no]
284   --enable-libzmq          enable message passing via libzmq [no]
285   --enable-libzvbi         enable teletext support via libzvbi [no]
286   --enable-lv2             enable LV2 audio filtering [no]
287   --disable-lzma           disable lzma [autodetect]
288   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
289   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
290   --enable-mediacodec      enable Android MediaCodec support [no]
291   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
292   --enable-openal          enable OpenAL 1.1 capture support [no]
293   --enable-opencl          enable OpenCL processing [no]
294   --enable-opengl          enable OpenGL rendering [no]
295   --enable-openssl         enable openssl, needed for https support
296                            if gnutls or libtls is not used [no]
297   --disable-sndio          disable sndio support [autodetect]
298   --disable-schannel       disable SChannel SSP, needed for TLS support on
299                            Windows if openssl and gnutls are not used [autodetect]
300   --disable-sdl2           disable sdl2 [autodetect]
301   --disable-securetransport disable Secure Transport, needed for TLS support
302                            on OSX if openssl and gnutls are not used [autodetect]
303   --disable-xlib           disable xlib [autodetect]
304   --disable-zlib           disable zlib [autodetect]
305
306   The following libraries provide various hardware acceleration features:
307   --disable-amf            disable AMF video encoding code [autodetect]
308   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
309   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
310   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
311   --disable-cuvid          disable Nvidia CUVID support [autodetect]
312   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
313   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
314   --enable-libdrm          enable DRM code (Linux) [no]
315   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
316   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
317   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
318   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
319   --disable-nvenc          disable Nvidia video encoding code [autodetect]
320   --enable-omx             enable OpenMAX IL code [no]
321   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
322   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
323   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
324   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
325   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
326   --disable-videotoolbox   disable VideoToolbox code [autodetect]
327
328 Toolchain options:
329   --arch=ARCH              select architecture [$arch]
330   --cpu=CPU                select the minimum required CPU (affects
331                            instruction selection, may crash on older CPUs)
332   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
333   --progs-suffix=SUFFIX    program name suffix []
334   --enable-cross-compile   assume a cross-compiler is used
335   --sysroot=PATH           root of cross-build tree
336   --sysinclude=PATH        location of cross-build system headers
337   --target-os=OS           compiler targets OS [$target_os]
338   --target-exec=CMD        command to run executables on target
339   --target-path=DIR        path to view of build directory on target
340   --target-samples=DIR     path to samples directory on target
341   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
342   --toolchain=NAME         set tool defaults according to NAME
343   --nm=NM                  use nm tool NM [$nm_default]
344   --ar=AR                  use archive tool AR [$ar_default]
345   --as=AS                  use assembler AS [$as_default]
346   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
347   --strip=STRIP            use strip tool STRIP [$strip_default]
348   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
349   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
350   --cc=CC                  use C compiler CC [$cc_default]
351   --cxx=CXX                use C compiler CXX [$cxx_default]
352   --objcc=OCC              use ObjC compiler OCC [$cc_default]
353   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
354   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
355   --ld=LD                  use linker LD [$ld_default]
356   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
357   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
358   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
359   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
360   --host-cc=HOSTCC         use host C compiler HOSTCC
361   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
362   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
363   --host-ld=HOSTLD         use host linker HOSTLD
364   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
365   --host-libs=HLIBS        use libs HLIBS when linking for host
366   --host-os=OS             compiler host OS [$target_os]
367   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
368   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
369   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
370   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
371   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
372   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
373   --extra-libs=ELIBS       add ELIBS [$ELIBS]
374   --extra-version=STRING   version string suffix []
375   --optflags=OPTFLAGS      override optimization-related compiler flags
376   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
377   --build-suffix=SUFFIX    library name suffix []
378   --enable-pic             build position-independent code
379   --enable-thumb           compile for Thumb instruction set
380   --enable-lto             use link-time optimization
381   --env="ENV=override"     override the environment variables
382
383 Advanced options (experts only):
384   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
385   --custom-allocator=NAME  use a supported custom allocator
386   --disable-symver         disable symbol versioning
387   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
388   --disable-safe-bitstream-reader
389                            disable buffer boundary checking in bitreaders
390                            (faster, but may crash)
391   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
392
393 Optimization options (experts only):
394   --disable-asm            disable all assembly optimizations
395   --disable-altivec        disable AltiVec optimizations
396   --disable-vsx            disable VSX optimizations
397   --disable-power8         disable POWER8 optimizations
398   --disable-amd3dnow       disable 3DNow! optimizations
399   --disable-amd3dnowext    disable 3DNow! extended optimizations
400   --disable-mmx            disable MMX optimizations
401   --disable-mmxext         disable MMXEXT optimizations
402   --disable-sse            disable SSE optimizations
403   --disable-sse2           disable SSE2 optimizations
404   --disable-sse3           disable SSE3 optimizations
405   --disable-ssse3          disable SSSE3 optimizations
406   --disable-sse4           disable SSE4 optimizations
407   --disable-sse42          disable SSE4.2 optimizations
408   --disable-avx            disable AVX optimizations
409   --disable-xop            disable XOP optimizations
410   --disable-fma3           disable FMA3 optimizations
411   --disable-fma4           disable FMA4 optimizations
412   --disable-avx2           disable AVX2 optimizations
413   --disable-avx512         disable AVX-512 optimizations
414   --disable-aesni          disable AESNI optimizations
415   --disable-armv5te        disable armv5te optimizations
416   --disable-armv6          disable armv6 optimizations
417   --disable-armv6t2        disable armv6t2 optimizations
418   --disable-vfp            disable VFP optimizations
419   --disable-neon           disable NEON optimizations
420   --disable-inline-asm     disable use of inline assembly
421   --disable-x86asm         disable use of standalone x86 assembly
422   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
423   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
424   --disable-msa            disable MSA optimizations
425   --disable-mipsfpu        disable floating point MIPS optimizations
426   --disable-mmi            disable Loongson SIMD optimizations
427   --disable-fast-unaligned consider unaligned accesses slow
428
429 Developer options (useful when working on FFmpeg itself):
430   --disable-debug          disable debugging symbols
431   --enable-debug=LEVEL     set the debug level [$debuglevel]
432   --disable-optimizations  disable compiler optimizations
433   --enable-extra-warnings  enable more compiler warnings
434   --disable-stripping      disable stripping of executables and shared libraries
435   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
436                            2 causes a slowdown at runtime.
437   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
438   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
439                            leaks and errors, using the specified valgrind binary.
440                            Cannot be combined with --target-exec
441   --enable-ftrapv          Trap arithmetic overflows
442   --samples=PATH           location of test samples for FATE, if not set use
443                            \$FATE_SAMPLES at make invocation time.
444   --enable-neon-clobber-test check NEON registers for clobbering (should be
445                            used only for debugging purposes)
446   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
447                            should be used only for debugging purposes)
448   --enable-random          randomly enable/disable components
449   --disable-random
450   --enable-random=LIST     randomly enable/disable specific components or
451   --disable-random=LIST    component groups. LIST is a comma-separated list
452                            of NAME[:PROB] entries where NAME is a component
453                            (group) and PROB the probability associated with
454                            NAME (default 0.5).
455   --random-seed=VALUE      seed value for --enable/disable-random
456   --disable-valgrind-backtrace do not print a backtrace under Valgrind
457                            (only applies to --disable-optimizations builds)
458   --enable-osfuzz          Enable building fuzzer tool
459   --libfuzzer=PATH         path to libfuzzer
460   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
461                            in the name) of tests whose result is ignored
462   --enable-linux-perf      enable Linux Performance Monitor API
463
464 NOTE: Object files are built at the place where configure is launched.
465 EOF
466   exit 0
467 }
468
469 if test -t 1 && which tput >/dev/null 2>&1; then
470     ncolors=$(tput colors)
471     if test -n "$ncolors" && test $ncolors -ge 8; then
472         bold_color=$(tput bold)
473         warn_color=$(tput setaf 3)
474         error_color=$(tput setaf 1)
475         reset_color=$(tput sgr0)
476     fi
477     # 72 used instead of 80 since that's the default of pr
478     ncols=$(tput cols)
479 fi
480 : ${ncols:=72}
481
482 log(){
483     echo "$@" >> $logfile
484 }
485
486 log_file(){
487     log BEGIN $1
488     pr -n -t $1 >> $logfile
489     log END $1
490 }
491
492 warn(){
493     log "WARNING: $*"
494     WARNINGS="${WARNINGS}WARNING: $*\n"
495 }
496
497 die(){
498     log "$@"
499     echo "$error_color$bold_color$@$reset_color"
500     cat <<EOF
501
502 If you think configure made a mistake, make sure you are using the latest
503 version from Git.  If the latest version fails, report the problem to the
504 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
505 EOF
506     if disabled logging; then
507         cat <<EOF
508 Rerun configure with logging enabled (do not use --disable-logging), and
509 include the log this produces with your report.
510 EOF
511     else
512         cat <<EOF
513 Include the log file "$logfile" produced by configure as this will help
514 solve the problem.
515 EOF
516     fi
517     exit 1
518 }
519
520 # Avoid locale weirdness, besides we really just want to translate ASCII.
521 toupper(){
522     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
523 }
524
525 tolower(){
526     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
527 }
528
529 c_escape(){
530     echo "$*" | sed 's/["\\]/\\\0/g'
531 }
532
533 sh_quote(){
534     v=$(echo "$1" | sed "s/'/'\\\\''/g")
535     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
536     echo "$v"
537 }
538
539 cleanws(){
540     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
541 }
542
543 filter(){
544     pat=$1
545     shift
546     for v; do
547         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
548     done
549 }
550
551 filter_out(){
552     pat=$1
553     shift
554     for v; do
555         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
556     done
557 }
558
559 map(){
560     m=$1
561     shift
562     for v; do eval $m; done
563 }
564
565 add_suffix(){
566     suffix=$1
567     shift
568     for v; do echo ${v}${suffix}; done
569 }
570
571 set_all(){
572     value=$1
573     shift
574     for var in $*; do
575         eval $var=$value
576     done
577 }
578
579 set_weak(){
580     value=$1
581     shift
582     for var; do
583         eval : \${$var:=$value}
584     done
585 }
586
587 sanitize_var_name(){
588     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
589 }
590
591 set_sanitized(){
592     var=$1
593     shift
594     eval $(sanitize_var_name "$var")='$*'
595 }
596
597 get_sanitized(){
598     eval echo \$$(sanitize_var_name "$1")
599 }
600
601 pushvar(){
602     for pvar in $*; do
603         eval level=\${${pvar}_level:=0}
604         eval ${pvar}_${level}="\$$pvar"
605         eval ${pvar}_level=$(($level+1))
606     done
607 }
608
609 popvar(){
610     for pvar in $*; do
611         eval level=\${${pvar}_level:-0}
612         test $level = 0 && continue
613         eval level=$(($level-1))
614         eval $pvar="\${${pvar}_${level}}"
615         eval ${pvar}_level=$level
616         eval unset ${pvar}_${level}
617     done
618 }
619
620 request(){
621     for var in $*; do
622         eval ${var}_requested=yes
623         eval $var=
624     done
625 }
626
627 enable(){
628     set_all yes $*
629 }
630
631 disable(){
632     set_all no $*
633 }
634
635 enable_weak(){
636     set_weak yes $*
637 }
638
639 disable_weak(){
640     set_weak no $*
641 }
642
643 enable_sanitized(){
644     for var; do
645         enable $(sanitize_var_name $var)
646     done
647 }
648
649 disable_sanitized(){
650     for var; do
651         disable $(sanitize_var_name $var)
652     done
653 }
654
655 do_enable_deep(){
656     for var; do
657         enabled $var && continue
658         eval sel="\$${var}_select"
659         eval sgs="\$${var}_suggest"
660         pushvar var sgs
661         enable_deep $sel
662         popvar sgs
663         enable_deep_weak $sgs
664         popvar var
665     done
666 }
667
668 enable_deep(){
669     do_enable_deep $*
670     enable $*
671 }
672
673 enable_deep_weak(){
674     for var; do
675         disabled $var && continue
676         pushvar var
677         do_enable_deep $var
678         popvar var
679         enable_weak $var
680     done
681 }
682
683 requested(){
684     test "${1#!}" = "$1" && op="=" || op="!="
685     eval test "x\$${1#!}_requested" $op "xyes"
686 }
687
688 enabled(){
689     test "${1#!}" = "$1" && op="=" || op="!="
690     eval test "x\$${1#!}" $op "xyes"
691 }
692
693 disabled(){
694     test "${1#!}" = "$1" && op="=" || op="!="
695     eval test "x\$${1#!}" $op "xno"
696 }
697
698 enabled_all(){
699     for opt; do
700         enabled $opt || return 1
701     done
702 }
703
704 disabled_all(){
705     for opt; do
706         disabled $opt || return 1
707     done
708 }
709
710 enabled_any(){
711     for opt; do
712         enabled $opt && return 0
713     done
714 }
715
716 disabled_any(){
717     for opt; do
718         disabled $opt && return 0
719     done
720     return 1
721 }
722
723 set_default(){
724     for opt; do
725         eval : \${$opt:=\$${opt}_default}
726     done
727 }
728
729 is_in(){
730     value=$1
731     shift
732     for var in $*; do
733         [ $var = $value ] && return 0
734     done
735     return 1
736 }
737
738 check_deps(){
739     for cfg; do
740         enabled ${cfg}_checking && die "Circular dependency for $cfg."
741         disabled ${cfg}_checking && continue
742         enable ${cfg}_checking
743
744         eval dep_all="\$${cfg}_deps"
745         eval dep_any="\$${cfg}_deps_any"
746         eval dep_con="\$${cfg}_conflict"
747         eval dep_sel="\$${cfg}_select"
748         eval dep_sgs="\$${cfg}_suggest"
749         eval dep_ifa="\$${cfg}_if"
750         eval dep_ifn="\$${cfg}_if_any"
751
752         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
753         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
754         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
755
756         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
757         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
758         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
759         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
760         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
761         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
762
763         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
764
765         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
766             # filter out library deps, these do not belong in extralibs
767             is_in $dep $LIBRARY_LIST && continue
768             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
769         done
770
771         disable ${cfg}_checking
772     done
773 }
774
775 print_config(){
776     pfx=$1
777     files=$2
778     shift 2
779     map 'eval echo "$v \${$v:-no}"' "$@" |
780     awk "BEGIN { split(\"$files\", files) }
781         {
782             c = \"$pfx\" toupper(\$1);
783             v = \$2;
784             sub(/yes/, 1, v);
785             sub(/no/,  0, v);
786             for (f in files) {
787                 file = files[f];
788                 if (file ~ /\\.h\$/) {
789                     printf(\"#define %s %d\\n\", c, v) >>file;
790                 } else if (file ~ /\\.asm\$/) {
791                     printf(\"%%define %s %d\\n\", c, v) >>file;
792                 } else if (file ~ /\\.mak\$/) {
793                     n = -v ? \"\" : \"!\";
794                     printf(\"%s%s=yes\\n\", n, c) >>file;
795                 } else if (file ~ /\\.texi\$/) {
796                     pre = -v ? \"\" : \"@c \";
797                     yesno = \$2;
798                     c2 = tolower(c);
799                     gsub(/_/, \"-\", c2);
800                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
801                 }
802             }
803         }"
804 }
805
806 print_enabled(){
807     suf=$1
808     shift
809     for v; do
810         enabled $v && printf "%s\n" ${v%$suf}
811     done
812 }
813
814 append(){
815     var=$1
816     shift
817     eval "$var=\"\$$var $*\""
818 }
819
820 prepend(){
821     var=$1
822     shift
823     eval "$var=\"$* \$$var\""
824 }
825
826 unique(){
827     var=$1
828     uniq_list=""
829     for tok in $(eval echo \$$var); do
830         uniq_list="$(filter_out $tok $uniq_list) $tok"
831     done
832     eval "$var=\"${uniq_list}\""
833 }
834
835 resolve(){
836     var=$1
837     tmpvar=
838     for entry in $(eval echo \$$var); do
839         tmpvar="$tmpvar $(eval echo \$${entry})"
840     done
841     eval "$var=\"${tmpvar}\""
842 }
843
844 add_cppflags(){
845     append CPPFLAGS "$@"
846 }
847
848 add_cflags(){
849     append CFLAGS $($cflags_filter "$@")
850 }
851
852 add_cflags_headers(){
853     append CFLAGS_HEADERS $($cflags_filter "$@")
854 }
855
856 add_cxxflags(){
857     append CXXFLAGS $($cflags_filter "$@")
858 }
859
860 add_asflags(){
861     append ASFLAGS $($asflags_filter "$@")
862 }
863
864 add_objcflags(){
865     append OBJCFLAGS $($objcflags_filter "$@")
866 }
867
868 add_ldflags(){
869     append LDFLAGS $($ldflags_filter "$@")
870 }
871
872 add_ldexeflags(){
873     append LDEXEFLAGS $($ldflags_filter "$@")
874 }
875
876 add_ldsoflags(){
877     append LDSOFLAGS $($ldflags_filter "$@")
878 }
879
880 add_stripflags(){
881     append ASMSTRIPFLAGS "$@"
882 }
883
884 add_extralibs(){
885     prepend extralibs $($ldflags_filter "$@")
886 }
887
888 add_host_cppflags(){
889     append host_cppflags "$@"
890 }
891
892 add_host_cflags(){
893     append host_cflags $($host_cflags_filter "$@")
894 }
895
896 add_host_ldflags(){
897     append host_ldflags $($host_ldflags_filter "$@")
898 }
899
900 add_compat(){
901     append compat_objs $1
902     shift
903     map 'add_cppflags -D$v' "$@"
904 }
905
906 check_cmd(){
907     log "$@"
908     "$@" >> $logfile 2>&1
909 }
910
911 check_stat(){
912     log check_stat "$@"
913     stat "$1" >> $logfile 2>&1
914 }
915
916 cc_o(){
917     eval printf '%s\\n' $CC_O
918 }
919
920 cc_e(){
921     eval printf '%s\\n' $CC_E
922 }
923
924 check_cc(){
925     log check_cc "$@"
926     cat > $TMPC
927     log_file $TMPC
928     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
929 }
930
931 check_cxx(){
932     log check_cxx "$@"
933     cat > $TMPCPP
934     log_file $TMPCPP
935     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
936 }
937
938 check_objcc(){
939     log check_objcc "$@"
940     cat > $TMPM
941     log_file $TMPM
942     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
943 }
944
945 check_cpp(){
946     log check_cpp "$@"
947     cat > $TMPC
948     log_file $TMPC
949     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
950 }
951
952 as_o(){
953     eval printf '%s\\n' $AS_O
954 }
955
956 check_as(){
957     log check_as "$@"
958     cat > $TMPS
959     log_file $TMPS
960     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
961 }
962
963 check_inline_asm(){
964     log check_inline_asm "$@"
965     name="$1"
966     code="$2"
967     shift 2
968     disable $name
969     check_cc "$@" <<EOF && enable $name
970 void foo(void){ __asm__ volatile($code); }
971 EOF
972 }
973
974 check_inline_asm_flags(){
975     log check_inline_asm_flags "$@"
976     name="$1"
977     code="$2"
978     flags=''
979     shift 2
980     while [ "$1" != "" ]; do
981       append flags $1
982       shift
983     done;
984     disable $name
985     cat > $TMPC <<EOF
986 void foo(void){ __asm__ volatile($code); }
987 EOF
988     log_file $TMPC
989     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
990     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
991 }
992
993 check_insn(){
994     log check_insn "$@"
995     check_inline_asm ${1}_inline "\"$2\""
996     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
997 }
998
999 check_x86asm(){
1000     log check_x86asm "$@"
1001     echo "$1" > $TMPS
1002     log_file $TMPS
1003     shift 1
1004     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
1005 }
1006
1007 ld_o(){
1008     eval printf '%s\\n' $LD_O
1009 }
1010
1011 check_ld(){
1012     log check_ld "$@"
1013     type=$1
1014     shift 1
1015     flags=$(filter_out '-l*|*.so' $@)
1016     libs=$(filter '-l*|*.so' $@)
1017     check_$type $($cflags_filter $flags) || return
1018     flags=$($ldflags_filter $flags)
1019     libs=$($ldflags_filter $libs)
1020     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1021 }
1022
1023 print_include(){
1024     hdr=$1
1025     test "${hdr%.h}" = "${hdr}" &&
1026         echo "#include $hdr"    ||
1027         echo "#include <$hdr>"
1028 }
1029
1030 check_code(){
1031     log check_code "$@"
1032     check=$1
1033     headers=$2
1034     code=$3
1035     shift 3
1036     {
1037         for hdr in $headers; do
1038             print_include $hdr
1039         done
1040         echo "int main(void) { $code; return 0; }"
1041     } | check_$check "$@"
1042 }
1043
1044 check_cppflags(){
1045     log check_cppflags "$@"
1046     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1047 #include <stdlib.h>
1048 EOF
1049 }
1050
1051 test_cflags(){
1052     log test_cflags "$@"
1053     set -- $($cflags_filter "$@")
1054     check_cc "$@" <<EOF
1055 int x;
1056 EOF
1057 }
1058
1059 check_cflags(){
1060     log check_cflags "$@"
1061     test_cflags "$@" && add_cflags "$@"
1062 }
1063
1064 check_cxxflags(){
1065     log check_cxxflags "$@"
1066     set -- $($cflags_filter "$@")
1067     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1068 int x;
1069 EOF
1070 }
1071
1072 test_objcflags(){
1073     log test_objcflags "$@"
1074     set -- $($objcflags_filter "$@")
1075     check_objcc "$@" <<EOF
1076 int x;
1077 EOF
1078 }
1079
1080 check_objcflags(){
1081     log check_objcflags "$@"
1082     test_objcflags "$@" && add_objcflags "$@"
1083 }
1084
1085 test_ldflags(){
1086     log test_ldflags "$@"
1087     set -- $($ldflags_filter "$@")
1088     check_ld "cc" "$@" <<EOF
1089 int main(void){ return 0; }
1090 EOF
1091 }
1092
1093 check_ldflags(){
1094     log check_ldflags "$@"
1095     test_ldflags "$@" && add_ldflags "$@"
1096 }
1097
1098 test_stripflags(){
1099     log test_stripflags "$@"
1100     # call check_cc to get a fresh TMPO
1101     check_cc <<EOF
1102 int main(void) { return 0; }
1103 EOF
1104     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1105 }
1106
1107 check_stripflags(){
1108     log check_stripflags "$@"
1109     test_stripflags "$@" && add_stripflags "$@"
1110 }
1111
1112 check_header(){
1113     log check_header "$@"
1114     headers=$1
1115     shift
1116     disable_sanitized $headers
1117     {
1118         for hdr in $headers; do
1119             print_include $hdr
1120         done
1121         echo "int x;"
1122     } | check_cpp "$@" && enable_sanitized $headers
1123 }
1124
1125 check_header_objcc(){
1126     log check_header_objcc "$@"
1127     rm -f -- "$TMPO"
1128     header=$1
1129     shift
1130     disable_sanitized $header
1131     {
1132        echo "#include <$header>"
1133        echo "int main(void) { return 0; }"
1134     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header
1135 }
1136
1137 check_apple_framework(){
1138     log check_apple_framework "$@"
1139     framework="$1"
1140     name="$(tolower $framework)"
1141     header="${framework}/${framework}.h"
1142     disable $name
1143     check_header_objcc $header &&
1144         enable $name && eval ${name}_extralibs='"-framework $framework"'
1145 }
1146
1147 check_func(){
1148     log check_func "$@"
1149     func=$1
1150     shift
1151     disable $func
1152     check_ld "cc" "$@" <<EOF && enable $func
1153 extern int $func();
1154 int main(void){ $func(); }
1155 EOF
1156 }
1157
1158 check_complexfunc(){
1159     log check_complexfunc "$@"
1160     func=$1
1161     narg=$2
1162     shift 2
1163     test $narg = 2 && args="f, g" || args="f * I"
1164     disable $func
1165     check_ld "cc" "$@" <<EOF && enable $func
1166 #include <complex.h>
1167 #include <math.h>
1168 float foo(complex float f, complex float g) { return $func($args); }
1169 int main(void){ return (int) foo; }
1170 EOF
1171 }
1172
1173 check_mathfunc(){
1174     log check_mathfunc "$@"
1175     func=$1
1176     narg=$2
1177     shift 2
1178     test $narg = 2 && args="f, g" || args="f"
1179     disable $func
1180     check_ld "cc" "$@" <<EOF && enable $func
1181 #include <math.h>
1182 float foo(float f, float g) { return $func($args); }
1183 int main(void){ return (int) foo; }
1184 EOF
1185 }
1186
1187 check_func_headers(){
1188     log check_func_headers "$@"
1189     headers=$1
1190     funcs=$2
1191     shift 2
1192     {
1193         for hdr in $headers; do
1194             print_include $hdr
1195         done
1196         echo "#include <stdint.h>"
1197         for func in $funcs; do
1198             echo "long check_$func(void) { return (long) $func; }"
1199         done
1200         echo "int main(void) { int ret = 0;"
1201         # LTO could optimize out the test functions without this
1202         for func in $funcs; do
1203             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1204         done
1205         echo "return ret; }"
1206     } | check_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1207 }
1208
1209 check_class_headers_cpp(){
1210     log check_class_headers_cpp "$@"
1211     headers=$1
1212     classes=$2
1213     shift 2
1214     {
1215         for hdr in $headers; do
1216             echo "#include <$hdr>"
1217         done
1218         echo "int main(void) { "
1219         i=1
1220         for class in $classes; do
1221             echo "$class obj$i;"
1222             i=$(expr $i + 1)
1223         done
1224         echo "return 0; }"
1225     } | check_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1226 }
1227
1228 check_cpp_condition(){
1229     log check_cpp_condition "$@"
1230     header=$1
1231     condition=$2
1232     shift 2
1233     check_cpp "$@" <<EOF
1234 #include <$header>
1235 #if !($condition)
1236 #error "unsatisfied condition: $condition"
1237 #endif
1238 EOF
1239 }
1240
1241 test_cflags_cc(){
1242     log test_cflags_cc "$@"
1243     flags=$1
1244     header=$2
1245     condition=$3
1246     shift 3
1247     set -- $($cflags_filter "$flags")
1248     check_cc "$@" <<EOF
1249 #include <$header>
1250 #if !($condition)
1251 #error "unsatisfied condition: $condition"
1252 #endif
1253 EOF
1254 }
1255
1256 check_lib(){
1257     log check_lib "$@"
1258     name="$1"
1259     headers="$2"
1260     funcs="$3"
1261     shift 3
1262     disable $name
1263     check_func_headers "$headers" "$funcs" "$@" &&
1264         enable $name && eval ${name}_extralibs="\$@"
1265 }
1266
1267 check_lib_cpp(){
1268     log check_lib_cpp "$@"
1269     name="$1"
1270     headers="$2"
1271     classes="$3"
1272     shift 3
1273     disable $name
1274     check_class_headers_cpp "$headers" "$classes" "$@" &&
1275         enable $name && eval ${name}_extralibs="\$@"
1276 }
1277
1278 test_pkg_config(){
1279     log test_pkg_config "$@"
1280     name="$1"
1281     pkg_version="$2"
1282     pkg="${2%% *}"
1283     headers="$3"
1284     funcs="$4"
1285     shift 4
1286     disable $name
1287     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1288     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1289     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1290     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1291         enable $name &&
1292         set_sanitized "${name}_cflags"    $pkg_cflags &&
1293         set_sanitized "${name}_extralibs" $pkg_libs
1294 }
1295
1296 check_pkg_config(){
1297     log check_pkg_config "$@"
1298     name="$1"
1299     test_pkg_config "$@" &&
1300         eval add_cflags \$${name}_cflags
1301 }
1302
1303 check_exec(){
1304     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1305 }
1306
1307 check_exec_crash(){
1308     log check_exec_crash "$@"
1309     code=$(cat)
1310
1311     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1312     # are safe but may not be available everywhere.  Thus we use
1313     # raise(SIGTERM) instead.  The check is run in a subshell so we
1314     # can redirect the "Terminated" message from the shell.  SIGBUS
1315     # is not defined by standard C so it is used conditionally.
1316
1317     (check_exec "$@") >> $logfile 2>&1 <<EOF
1318 #include <signal.h>
1319 static void sighandler(int sig){
1320     raise(SIGTERM);
1321 }
1322 int foo(void){
1323     $code
1324 }
1325 int (*func_ptr)(void) = foo;
1326 int main(void){
1327     signal(SIGILL, sighandler);
1328     signal(SIGFPE, sighandler);
1329     signal(SIGSEGV, sighandler);
1330 #ifdef SIGBUS
1331     signal(SIGBUS, sighandler);
1332 #endif
1333     return func_ptr();
1334 }
1335 EOF
1336 }
1337
1338 check_type(){
1339     log check_type "$@"
1340     headers=$1
1341     type=$2
1342     shift 2
1343     disable_sanitized "$type"
1344     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1345 }
1346
1347 check_struct(){
1348     log check_struct "$@"
1349     headers=$1
1350     struct=$2
1351     member=$3
1352     shift 3
1353     disable_sanitized "${struct}_${member}"
1354     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1355         enable_sanitized "${struct}_${member}"
1356 }
1357
1358 check_builtin(){
1359     log check_builtin "$@"
1360     name=$1
1361     headers=$2
1362     builtin=$3
1363     shift 3
1364     disable "$name"
1365     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1366 }
1367
1368 check_compile_assert(){
1369     log check_compile_assert "$@"
1370     name=$1
1371     headers=$2
1372     condition=$3
1373     shift 3
1374     disable "$name"
1375     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1376 }
1377
1378 require(){
1379     log require "$@"
1380     name_version="$1"
1381     name="${1%% *}"
1382     headers="$2"
1383     func="$3"
1384     shift 3
1385     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1386 }
1387
1388 require_cpp(){
1389     name="$1"
1390     headers="$2"
1391     classes="$3"
1392     shift 3
1393     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1394 }
1395
1396 require_header(){
1397     log require_header "$@"
1398     headers="$1"
1399     shift
1400     check_header "$headers" "$@" || die "ERROR: $headers not found"
1401 }
1402
1403 require_cpp_condition(){
1404     log require_cpp_condition "$@"
1405     header="$1"
1406     condition="$2"
1407     shift 2
1408     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1409 }
1410
1411 require_pkg_config(){
1412     log require_pkg_config "$@"
1413     pkg_version="$2"
1414     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1415 }
1416
1417 hostcc_e(){
1418     eval printf '%s\\n' $HOSTCC_E
1419 }
1420
1421 hostcc_o(){
1422     eval printf '%s\\n' $HOSTCC_O
1423 }
1424
1425 check_host_cc(){
1426     log check_host_cc "$@"
1427     cat > $TMPC
1428     log_file $TMPC
1429     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1430 }
1431
1432 check_host_cpp(){
1433     log check_host_cpp "$@"
1434     cat > $TMPC
1435     log_file $TMPC
1436     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1437 }
1438
1439 check_host_cppflags(){
1440     log check_host_cppflags "$@"
1441     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1442 #include <stdlib.h>
1443 EOF
1444 }
1445
1446 check_host_cflags(){
1447     log check_host_cflags "$@"
1448     set -- $($host_cflags_filter "$@")
1449     check_host_cc "$@" <<EOF && append host_cflags "$@"
1450 int x;
1451 EOF
1452 }
1453
1454 check_host_cpp_condition(){
1455     log check_host_cpp_condition "$@"
1456     header=$1
1457     condition=$2
1458     shift 2
1459     check_host_cpp "$@" <<EOF
1460 #include <$header>
1461 #if !($condition)
1462 #error "unsatisfied condition: $condition"
1463 #endif
1464 EOF
1465 }
1466
1467 cp_if_changed(){
1468     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1469     mkdir -p "$(dirname $2)"
1470     cp -f "$1" "$2"
1471 }
1472
1473 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1474 # system-dependent things.
1475
1476 AVCODEC_COMPONENTS="
1477     bsfs
1478     decoders
1479     encoders
1480     hwaccels
1481     parsers
1482 "
1483
1484 AVDEVICE_COMPONENTS="
1485     indevs
1486     outdevs
1487 "
1488
1489 AVFILTER_COMPONENTS="
1490     filters
1491 "
1492
1493 AVFORMAT_COMPONENTS="
1494     demuxers
1495     muxers
1496     protocols
1497 "
1498
1499 COMPONENT_LIST="
1500     $AVCODEC_COMPONENTS
1501     $AVDEVICE_COMPONENTS
1502     $AVFILTER_COMPONENTS
1503     $AVFORMAT_COMPONENTS
1504 "
1505
1506 EXAMPLE_LIST="
1507     avio_dir_cmd_example
1508     avio_reading_example
1509     decode_audio_example
1510     decode_video_example
1511     demuxing_decoding_example
1512     encode_audio_example
1513     encode_video_example
1514     extract_mvs_example
1515     filter_audio_example
1516     filtering_audio_example
1517     filtering_video_example
1518     http_multiclient_example
1519     hw_decode_example
1520     metadata_example
1521     muxing_example
1522     qsvdec_example
1523     remuxing_example
1524     resampling_audio_example
1525     scaling_video_example
1526     transcode_aac_example
1527     transcoding_example
1528     vaapi_encode_example
1529 "
1530
1531 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1532     alsa
1533     appkit
1534     avfoundation
1535     bzlib
1536     coreimage
1537     iconv
1538     libxcb
1539     libxcb_shm
1540     libxcb_shape
1541     libxcb_xfixes
1542     lzma
1543     schannel
1544     sdl2
1545     securetransport
1546     sndio
1547     xlib
1548     zlib
1549 "
1550
1551 EXTERNAL_LIBRARY_GPL_LIST="
1552     avisynth
1553     frei0r
1554     libcdio
1555     librubberband
1556     libvidstab
1557     libx264
1558     libx265
1559     libxavs
1560     libxvid
1561 "
1562
1563 EXTERNAL_LIBRARY_NONFREE_LIST="
1564     decklink
1565     libndi_newtek
1566     libfdk_aac
1567     openssl
1568     libtls
1569 "
1570
1571 EXTERNAL_LIBRARY_VERSION3_LIST="
1572     gmp
1573     libopencore_amrnb
1574     libopencore_amrwb
1575     libvmaf
1576     libvo_amrwbenc
1577     rkmpp
1578 "
1579
1580 EXTERNAL_LIBRARY_GPLV3_LIST="
1581     libsmbclient
1582 "
1583
1584 EXTERNAL_LIBRARY_LIST="
1585     $EXTERNAL_LIBRARY_GPL_LIST
1586     $EXTERNAL_LIBRARY_NONFREE_LIST
1587     $EXTERNAL_LIBRARY_VERSION3_LIST
1588     $EXTERNAL_LIBRARY_GPLV3_LIST
1589     chromaprint
1590     gcrypt
1591     gnutls
1592     jni
1593     ladspa
1594     libass
1595     libbluray
1596     libbs2b
1597     libcaca
1598     libcelt
1599     libdc1394
1600     libdrm
1601     libflite
1602     libfontconfig
1603     libfreetype
1604     libfribidi
1605     libgme
1606     libgsm
1607     libiec61883
1608     libilbc
1609     libjack
1610     libkvazaar
1611     libmodplug
1612     libmp3lame
1613     libmysofa
1614     libopencv
1615     libopenh264
1616     libopenjpeg
1617     libopenmpt
1618     libopus
1619     libpulse
1620     librsvg
1621     librtmp
1622     libshine
1623     libsmbclient
1624     libsnappy
1625     libsoxr
1626     libspeex
1627     libssh
1628     libtesseract
1629     libtheora
1630     libtwolame
1631     libv4l2
1632     libvorbis
1633     libvpx
1634     libwavpack
1635     libwebp
1636     libxml2
1637     libzimg
1638     libzmq
1639     libzvbi
1640     lv2
1641     mediacodec
1642     openal
1643     opengl
1644 "
1645
1646 HWACCEL_AUTODETECT_LIBRARY_LIST="
1647     amf
1648     audiotoolbox
1649     crystalhd
1650     cuda
1651     cuvid
1652     d3d11va
1653     dxva2
1654     nvdec
1655     nvenc
1656     vaapi
1657     vdpau
1658     videotoolbox
1659     v4l2_m2m
1660     xvmc
1661 "
1662
1663 # catchall list of things that require external libs to link
1664 EXTRALIBS_LIST="
1665     cpu_init
1666     cws2fws
1667 "
1668
1669 HWACCEL_LIBRARY_NONFREE_LIST="
1670     cuda_sdk
1671     libnpp
1672 "
1673
1674 HWACCEL_LIBRARY_LIST="
1675     $HWACCEL_LIBRARY_NONFREE_LIST
1676     libmfx
1677     mmal
1678     omx
1679     opencl
1680 "
1681
1682 DOCUMENT_LIST="
1683     doc
1684     htmlpages
1685     manpages
1686     podpages
1687     txtpages
1688 "
1689
1690 FEATURE_LIST="
1691     ftrapv
1692     gray
1693     hardcoded_tables
1694     omx_rpi
1695     runtime_cpudetect
1696     safe_bitstream_reader
1697     shared
1698     small
1699     static
1700     swscale_alpha
1701 "
1702
1703 LIBRARY_LIST="
1704     avcodec
1705     avdevice
1706     avfilter
1707     avformat
1708     avresample
1709     avutil
1710     postproc
1711     swresample
1712     swscale
1713 "
1714
1715 LICENSE_LIST="
1716     gpl
1717     nonfree
1718     version3
1719 "
1720
1721 PROGRAM_LIST="
1722     ffplay
1723     ffprobe
1724     ffmpeg
1725 "
1726
1727 SUBSYSTEM_LIST="
1728     dct
1729     dwt
1730     error_resilience
1731     faan
1732     fast_unaligned
1733     fft
1734     lsp
1735     lzo
1736     mdct
1737     pixelutils
1738     network
1739     rdft
1740 "
1741
1742 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1743 CONFIG_LIST="
1744     $DOCUMENT_LIST
1745     $EXAMPLE_LIST
1746     $EXTERNAL_LIBRARY_LIST
1747     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1748     $HWACCEL_LIBRARY_LIST
1749     $HWACCEL_AUTODETECT_LIBRARY_LIST
1750     $FEATURE_LIST
1751     $LICENSE_LIST
1752     $LIBRARY_LIST
1753     $PROGRAM_LIST
1754     $SUBSYSTEM_LIST
1755     autodetect
1756     fontconfig
1757     linux_perf
1758     memory_poisoning
1759     neon_clobber_test
1760     ossfuzz
1761     pic
1762     thumb
1763     valgrind_backtrace
1764     xmm_clobber_test
1765     $COMPONENT_LIST
1766 "
1767
1768 THREADS_LIST="
1769     pthreads
1770     os2threads
1771     w32threads
1772 "
1773
1774 ATOMICS_LIST="
1775     atomics_gcc
1776     atomics_suncc
1777     atomics_win32
1778 "
1779
1780 AUTODETECT_LIBS="
1781     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1782     $HWACCEL_AUTODETECT_LIBRARY_LIST
1783     $THREADS_LIST
1784 "
1785
1786 ARCH_LIST="
1787     aarch64
1788     alpha
1789     arm
1790     avr32
1791     avr32_ap
1792     avr32_uc
1793     bfin
1794     ia64
1795     m68k
1796     mips
1797     mips64
1798     parisc
1799     ppc
1800     ppc64
1801     s390
1802     sh4
1803     sparc
1804     sparc64
1805     tilegx
1806     tilepro
1807     tomi
1808     x86
1809     x86_32
1810     x86_64
1811 "
1812
1813 ARCH_EXT_LIST_ARM="
1814     armv5te
1815     armv6
1816     armv6t2
1817     armv8
1818     neon
1819     vfp
1820     vfpv3
1821     setend
1822 "
1823
1824 ARCH_EXT_LIST_MIPS="
1825     mipsfpu
1826     mips32r2
1827     mips32r5
1828     mips64r2
1829     mips32r6
1830     mips64r6
1831     mipsdsp
1832     mipsdspr2
1833     msa
1834 "
1835
1836 ARCH_EXT_LIST_LOONGSON="
1837     loongson2
1838     loongson3
1839     mmi
1840 "
1841
1842 ARCH_EXT_LIST_X86_SIMD="
1843     aesni
1844     amd3dnow
1845     amd3dnowext
1846     avx
1847     avx2
1848     avx512
1849     fma3
1850     fma4
1851     mmx
1852     mmxext
1853     sse
1854     sse2
1855     sse3
1856     sse4
1857     sse42
1858     ssse3
1859     xop
1860 "
1861
1862 ARCH_EXT_LIST_PPC="
1863     altivec
1864     dcbzl
1865     ldbrx
1866     power8
1867     ppc4xx
1868     vsx
1869 "
1870
1871 ARCH_EXT_LIST_X86="
1872     $ARCH_EXT_LIST_X86_SIMD
1873     cpunop
1874     i686
1875 "
1876
1877 ARCH_EXT_LIST="
1878     $ARCH_EXT_LIST_ARM
1879     $ARCH_EXT_LIST_PPC
1880     $ARCH_EXT_LIST_X86
1881     $ARCH_EXT_LIST_MIPS
1882     $ARCH_EXT_LIST_LOONGSON
1883 "
1884
1885 ARCH_FEATURES="
1886     aligned_stack
1887     fast_64bit
1888     fast_clz
1889     fast_cmov
1890     local_aligned
1891     simd_align_16
1892     simd_align_32
1893     simd_align_64
1894 "
1895
1896 BUILTIN_LIST="
1897     atomic_cas_ptr
1898     machine_rw_barrier
1899     MemoryBarrier
1900     mm_empty
1901     rdtsc
1902     sem_timedwait
1903     sync_val_compare_and_swap
1904 "
1905 HAVE_LIST_CMDLINE="
1906     inline_asm
1907     symver
1908     x86asm
1909 "
1910
1911 HAVE_LIST_PUB="
1912     bigendian
1913     fast_unaligned
1914 "
1915
1916 HEADERS_LIST="
1917     arpa_inet_h
1918     asm_types_h
1919     cdio_paranoia_h
1920     cdio_paranoia_paranoia_h
1921     cuda_h
1922     dispatch_dispatch_h
1923     dev_bktr_ioctl_bt848_h
1924     dev_bktr_ioctl_meteor_h
1925     dev_ic_bt8xx_h
1926     dev_video_bktr_ioctl_bt848_h
1927     dev_video_meteor_ioctl_meteor_h
1928     direct_h
1929     dirent_h
1930     dxgidebug_h
1931     dxva_h
1932     ES2_gl_h
1933     gsm_h
1934     io_h
1935     machine_ioctl_bt848_h
1936     machine_ioctl_meteor_h
1937     malloc_h
1938     opencv2_core_core_c_h
1939     OpenGL_gl3_h
1940     poll_h
1941     sys_param_h
1942     sys_resource_h
1943     sys_select_h
1944     sys_soundcard_h
1945     sys_time_h
1946     sys_un_h
1947     sys_videoio_h
1948     termios_h
1949     udplite_h
1950     unistd_h
1951     valgrind_valgrind_h
1952     windows_h
1953     winsock2_h
1954 "
1955
1956 INTRINSICS_LIST="
1957     intrinsics_neon
1958 "
1959
1960 COMPLEX_FUNCS="
1961     cabs
1962     cexp
1963 "
1964
1965 MATH_FUNCS="
1966     atanf
1967     atan2f
1968     cbrt
1969     cbrtf
1970     copysign
1971     cosf
1972     erf
1973     exp2
1974     exp2f
1975     expf
1976     hypot
1977     isfinite
1978     isinf
1979     isnan
1980     ldexpf
1981     llrint
1982     llrintf
1983     log2
1984     log2f
1985     log10f
1986     lrint
1987     lrintf
1988     powf
1989     rint
1990     round
1991     roundf
1992     sinf
1993     trunc
1994     truncf
1995 "
1996
1997 SYSTEM_FEATURES="
1998     dos_paths
1999     libc_msvcrt
2000     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2001     section_data_rel_ro
2002     threads
2003     uwp
2004     winrt
2005 "
2006
2007 SYSTEM_FUNCS="
2008     access
2009     aligned_malloc
2010     arc4random
2011     clock_gettime
2012     closesocket
2013     CommandLineToArgvW
2014     fcntl
2015     getaddrinfo
2016     gethrtime
2017     getopt
2018     GetProcessAffinityMask
2019     GetProcessMemoryInfo
2020     GetProcessTimes
2021     getrusage
2022     GetSystemTimeAsFileTime
2023     gettimeofday
2024     glob
2025     glXGetProcAddress
2026     gmtime_r
2027     inet_aton
2028     isatty
2029     kbhit
2030     localtime_r
2031     lstat
2032     lzo1x_999_compress
2033     mach_absolute_time
2034     MapViewOfFile
2035     memalign
2036     mkstemp
2037     mmap
2038     mprotect
2039     nanosleep
2040     PeekNamedPipe
2041     posix_memalign
2042     pthread_cancel
2043     sched_getaffinity
2044     SecItemImport
2045     SetConsoleTextAttribute
2046     SetConsoleCtrlHandler
2047     setmode
2048     setrlimit
2049     Sleep
2050     strerror_r
2051     sysconf
2052     sysctl
2053     usleep
2054     UTGetOSTypeFromString
2055     VirtualAlloc
2056     wglGetProcAddress
2057 "
2058
2059 SYSTEM_LIBRARIES="
2060     vaapi_drm
2061     vaapi_x11
2062     vdpau_x11
2063     wincrypt
2064 "
2065
2066 TOOLCHAIN_FEATURES="
2067     as_arch_directive
2068     as_fpu_directive
2069     as_func
2070     as_object_arch
2071     asm_mod_q
2072     blocks_extension
2073     ebp_available
2074     ebx_available
2075     gnu_as
2076     gnu_windres
2077     ibm_asm
2078     inline_asm_direct_symbol_refs
2079     inline_asm_labels
2080     inline_asm_nonlocal_labels
2081     pragma_deprecated
2082     rsync_contimeout
2083     symver_asm_label
2084     symver_gnu_asm
2085     vfp_args
2086     xform_asm
2087     xmm_clobbers
2088 "
2089
2090 TYPES_LIST="
2091     kCMVideoCodecType_HEVC
2092     socklen_t
2093     struct_addrinfo
2094     struct_group_source_req
2095     struct_ip_mreq_source
2096     struct_ipv6_mreq
2097     struct_msghdr_msg_flags
2098     struct_pollfd
2099     struct_rusage_ru_maxrss
2100     struct_sctp_event_subscribe
2101     struct_sockaddr_in6
2102     struct_sockaddr_sa_len
2103     struct_sockaddr_storage
2104     struct_stat_st_mtim_tv_nsec
2105     struct_v4l2_frmivalenum_discrete
2106 "
2107
2108 HAVE_LIST="
2109     $ARCH_EXT_LIST
2110     $(add_suffix _external $ARCH_EXT_LIST)
2111     $(add_suffix _inline   $ARCH_EXT_LIST)
2112     $ARCH_FEATURES
2113     $BUILTIN_LIST
2114     $COMPLEX_FUNCS
2115     $HAVE_LIST_CMDLINE
2116     $HAVE_LIST_PUB
2117     $HEADERS_LIST
2118     $INTRINSICS_LIST
2119     $MATH_FUNCS
2120     $SYSTEM_FEATURES
2121     $SYSTEM_FUNCS
2122     $SYSTEM_LIBRARIES
2123     $THREADS_LIST
2124     $TOOLCHAIN_FEATURES
2125     $TYPES_LIST
2126     makeinfo
2127     makeinfo_html
2128     opencl_d3d11
2129     opencl_drm_arm
2130     opencl_dxva2
2131     opencl_vaapi_beignet
2132     opencl_vaapi_intel_media
2133     perl
2134     pod2man
2135     texi2html
2136 "
2137
2138 # options emitted with CONFIG_ prefix but not available on the command line
2139 CONFIG_EXTRA="
2140     aandcttables
2141     ac3dsp
2142     adts_header
2143     audio_frame_queue
2144     audiodsp
2145     blockdsp
2146     bswapdsp
2147     cabac
2148     cbs
2149     cbs_h264
2150     cbs_h265
2151     cbs_mpeg2
2152     dirac_parse
2153     dvprofile
2154     exif
2155     faandct
2156     faanidct
2157     fdctdsp
2158     flacdsp
2159     fmtconvert
2160     frame_thread_encoder
2161     g722dsp
2162     golomb
2163     gplv3
2164     h263dsp
2165     h264chroma
2166     h264dsp
2167     h264parse
2168     h264pred
2169     h264qpel
2170     hevcparse
2171     hpeldsp
2172     huffman
2173     huffyuvdsp
2174     huffyuvencdsp
2175     idctdsp
2176     iirfilter
2177     mdct15
2178     intrax8
2179     iso_media
2180     ividsp
2181     jpegtables
2182     lgplv3
2183     libx262
2184     llauddsp
2185     llviddsp
2186     llvidencdsp
2187     lpc
2188     lzf
2189     me_cmp
2190     mpeg_er
2191     mpegaudio
2192     mpegaudiodsp
2193     mpegaudioheader
2194     mpegvideo
2195     mpegvideoenc
2196     mss34dsp
2197     pixblockdsp
2198     qpeldsp
2199     qsv
2200     qsvdec
2201     qsvenc
2202     qsvvpp
2203     rangecoder
2204     riffdec
2205     riffenc
2206     rtpdec
2207     rtpenc_chain
2208     rv34dsp
2209     sinewin
2210     snappy
2211     srtp
2212     startcode
2213     texturedsp
2214     texturedspenc
2215     tpeldsp
2216     vaapi_1
2217     vaapi_encode
2218     vc1dsp
2219     videodsp
2220     vp3dsp
2221     vp56dsp
2222     vp8dsp
2223     wma_freqs
2224     wmv2dsp
2225 "
2226
2227 CMDLINE_SELECT="
2228     $ARCH_EXT_LIST
2229     $CONFIG_LIST
2230     $HAVE_LIST_CMDLINE
2231     $THREADS_LIST
2232     asm
2233     cross_compile
2234     debug
2235     extra_warnings
2236     logging
2237     lto
2238     optimizations
2239     rpath
2240     stripping
2241 "
2242
2243 PATHS_LIST="
2244     bindir
2245     datadir
2246     docdir
2247     incdir
2248     libdir
2249     mandir
2250     pkgconfigdir
2251     prefix
2252     shlibdir
2253     install_name_dir
2254 "
2255
2256 CMDLINE_SET="
2257     $PATHS_LIST
2258     ar
2259     arch
2260     as
2261     assert_level
2262     build_suffix
2263     cc
2264     objcc
2265     cpu
2266     cross_prefix
2267     custom_allocator
2268     cxx
2269     dep_cc
2270     doxygen
2271     env
2272     extra_version
2273     gas
2274     host_cc
2275     host_cflags
2276     host_extralibs
2277     host_ld
2278     host_ldflags
2279     host_os
2280     ignore_tests
2281     install
2282     ld
2283     ln_s
2284     logfile
2285     malloc_prefix
2286     nm
2287     optflags
2288     nvccflags
2289     pkg_config
2290     pkg_config_flags
2291     progs_suffix
2292     random_seed
2293     ranlib
2294     samples
2295     strip
2296     sws_max_filter_size
2297     sysinclude
2298     sysroot
2299     target_exec
2300     target_os
2301     target_path
2302     target_samples
2303     tempprefix
2304     toolchain
2305     valgrind
2306     x86asmexe
2307 "
2308
2309 CMDLINE_APPEND="
2310     extra_cflags
2311     extra_cxxflags
2312     extra_objcflags
2313     host_cppflags
2314 "
2315
2316 # code dependency declarations
2317
2318 # architecture extensions
2319
2320 armv5te_deps="arm"
2321 armv6_deps="arm"
2322 armv6t2_deps="arm"
2323 armv8_deps="aarch64"
2324 neon_deps_any="aarch64 arm"
2325 intrinsics_neon_deps="neon"
2326 vfp_deps_any="aarch64 arm"
2327 vfpv3_deps="vfp"
2328 setend_deps="arm"
2329
2330 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2331
2332 altivec_deps="ppc"
2333 dcbzl_deps="ppc"
2334 ldbrx_deps="ppc"
2335 ppc4xx_deps="ppc"
2336 vsx_deps="altivec"
2337 power8_deps="vsx"
2338
2339 loongson2_deps="mips"
2340 loongson3_deps="mips"
2341 mips32r2_deps="mips"
2342 mips32r5_deps="mips"
2343 mips32r6_deps="mips"
2344 mips64r2_deps="mips"
2345 mips64r6_deps="mips"
2346 mipsfpu_deps="mips"
2347 mipsdsp_deps="mips"
2348 mipsdspr2_deps="mips"
2349 mmi_deps="mips"
2350 msa_deps="mipsfpu"
2351
2352 cpunop_deps="i686"
2353 x86_64_select="i686"
2354 x86_64_suggest="fast_cmov"
2355
2356 amd3dnow_deps="mmx"
2357 amd3dnowext_deps="amd3dnow"
2358 i686_deps="x86"
2359 mmx_deps="x86"
2360 mmxext_deps="mmx"
2361 sse_deps="mmxext"
2362 sse2_deps="sse"
2363 sse3_deps="sse2"
2364 ssse3_deps="sse3"
2365 sse4_deps="ssse3"
2366 sse42_deps="sse4"
2367 aesni_deps="sse42"
2368 avx_deps="sse42"
2369 xop_deps="avx"
2370 fma3_deps="avx"
2371 fma4_deps="avx"
2372 avx2_deps="avx"
2373 avx512_deps="avx2"
2374
2375 mmx_external_deps="x86asm"
2376 mmx_inline_deps="inline_asm x86"
2377 mmx_suggest="mmx_external mmx_inline"
2378
2379 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2380     eval dep=\$${ext}_deps
2381     eval ${ext}_external_deps='"${dep}_external"'
2382     eval ${ext}_inline_deps='"${dep}_inline"'
2383     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2384 done
2385
2386 aligned_stack_if_any="aarch64 ppc x86"
2387 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2388 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2389 fast_unaligned_if_any="aarch64 ppc x86"
2390 simd_align_16_if_any="altivec neon sse"
2391 simd_align_32_if_any="avx"
2392 simd_align_64_if_any="avx512"
2393
2394 # system capabilities
2395 symver_if_any="symver_asm_label symver_gnu_asm"
2396 valgrind_backtrace_conflict="optimizations"
2397 valgrind_backtrace_deps="valgrind_valgrind_h"
2398
2399 # threading support
2400 atomics_gcc_if="sync_val_compare_and_swap"
2401 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2402 atomics_win32_if="MemoryBarrier"
2403 atomics_native_if_any="$ATOMICS_LIST"
2404 w32threads_deps="atomics_native"
2405 threads_if_any="$THREADS_LIST"
2406
2407 # subsystems
2408 cbs_h264_select="cbs golomb"
2409 cbs_h265_select="cbs golomb"
2410 cbs_mpeg2_select="cbs"
2411 dct_select="rdft"
2412 dirac_parse_select="golomb"
2413 error_resilience_select="me_cmp"
2414 faandct_deps="faan"
2415 faandct_select="fdctdsp"
2416 faanidct_deps="faan"
2417 faanidct_select="idctdsp"
2418 h264dsp_select="startcode"
2419 hevcparse_select="golomb"
2420 frame_thread_encoder_deps="encoders threads"
2421 intrax8_select="blockdsp idctdsp"
2422 mdct_select="fft"
2423 mdct15_select="fft"
2424 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2425 mpeg_er_select="error_resilience"
2426 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2427 mpegaudiodsp_select="dct"
2428 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2429 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2430 vc1dsp_select="h264chroma qpeldsp startcode"
2431 rdft_select="fft"
2432
2433 # decoders / encoders
2434 aac_decoder_select="adts_header mdct15 mdct sinewin"
2435 aac_fixed_decoder_select="mdct sinewin"
2436 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2437 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2438 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2439 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2440 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2441 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2442 adpcm_g722_decoder_select="g722dsp"
2443 adpcm_g722_encoder_select="g722dsp"
2444 aic_decoder_select="golomb idctdsp"
2445 alac_encoder_select="lpc"
2446 als_decoder_select="bswapdsp"
2447 amrnb_decoder_select="lsp"
2448 amrwb_decoder_select="lsp"
2449 amv_decoder_select="sp5x_decoder exif"
2450 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2451 ape_decoder_select="bswapdsp llauddsp"
2452 apng_decoder_deps="zlib"
2453 apng_encoder_deps="zlib"
2454 apng_encoder_select="llvidencdsp"
2455 aptx_decoder_select="audio_frame_queue"
2456 aptx_encoder_select="audio_frame_queue"
2457 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2458 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2459 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2460 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2461 atrac1_decoder_select="mdct sinewin"
2462 atrac3_decoder_select="mdct"
2463 atrac3p_decoder_select="mdct sinewin"
2464 avrn_decoder_select="exif jpegtables"
2465 bink_decoder_select="blockdsp hpeldsp"
2466 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2467 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2468 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2469 clearvideo_decoder_select="idctdsp"
2470 cllc_decoder_select="bswapdsp"
2471 comfortnoise_encoder_select="lpc"
2472 cook_decoder_select="audiodsp mdct sinewin"
2473 cscd_decoder_select="lzo"
2474 cscd_decoder_suggest="zlib"
2475 dca_decoder_select="mdct"
2476 dds_decoder_select="texturedsp"
2477 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2478 dnxhd_decoder_select="blockdsp idctdsp"
2479 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2480 dolby_e_decoder_select="mdct"
2481 dvvideo_decoder_select="dvprofile idctdsp"
2482 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2483 dxa_decoder_deps="zlib"
2484 dxv_decoder_select="lzf texturedsp"
2485 eac3_decoder_select="ac3_decoder"
2486 eac3_encoder_select="ac3_encoder"
2487 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2488 eatgq_decoder_select="aandcttables"
2489 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2490 exr_decoder_deps="zlib"
2491 ffv1_decoder_select="rangecoder"
2492 ffv1_encoder_select="rangecoder"
2493 ffvhuff_decoder_select="huffyuv_decoder"
2494 ffvhuff_encoder_select="huffyuv_encoder"
2495 fic_decoder_select="golomb"
2496 flac_decoder_select="flacdsp"
2497 flac_encoder_select="bswapdsp flacdsp lpc"
2498 flashsv2_decoder_deps="zlib"
2499 flashsv2_encoder_deps="zlib"
2500 flashsv_decoder_deps="zlib"
2501 flashsv_encoder_deps="zlib"
2502 flv_decoder_select="h263_decoder"
2503 flv_encoder_select="h263_encoder"
2504 fourxm_decoder_select="blockdsp bswapdsp"
2505 fraps_decoder_select="bswapdsp huffman"
2506 g2m_decoder_deps="zlib"
2507 g2m_decoder_select="blockdsp idctdsp jpegtables"
2508 g729_decoder_select="audiodsp"
2509 h261_decoder_select="mpegvideo"
2510 h261_encoder_select="aandcttables mpegvideoenc"
2511 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2512 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2513 h263i_decoder_select="h263_decoder"
2514 h263p_decoder_select="h263_decoder"
2515 h263p_encoder_select="h263_encoder"
2516 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2517 h264_decoder_suggest="error_resilience"
2518 hap_decoder_select="snappy texturedsp"
2519 hap_encoder_deps="libsnappy"
2520 hap_encoder_select="texturedspenc"
2521 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2522 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2523 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2524 iac_decoder_select="imc_decoder"
2525 imc_decoder_select="bswapdsp fft mdct sinewin"
2526 indeo3_decoder_select="hpeldsp"
2527 indeo4_decoder_select="ividsp"
2528 indeo5_decoder_select="ividsp"
2529 interplay_video_decoder_select="hpeldsp"
2530 jpegls_decoder_select="mjpeg_decoder"
2531 jv_decoder_select="blockdsp"
2532 lagarith_decoder_select="llviddsp"
2533 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2534 magicyuv_decoder_select="llviddsp"
2535 magicyuv_encoder_select="llvidencdsp"
2536 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2537 metasound_decoder_select="lsp mdct sinewin"
2538 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2539 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2540 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2541 mjpegb_decoder_select="mjpeg_decoder"
2542 mlp_decoder_select="mlp_parser"
2543 mlp_encoder_select="lpc"
2544 motionpixels_decoder_select="bswapdsp"
2545 mp1_decoder_select="mpegaudio"
2546 mp1float_decoder_select="mpegaudio"
2547 mp2_decoder_select="mpegaudio"
2548 mp2float_decoder_select="mpegaudio"
2549 mp3_decoder_select="mpegaudio"
2550 mp3adu_decoder_select="mpegaudio"
2551 mp3adufloat_decoder_select="mpegaudio"
2552 mp3float_decoder_select="mpegaudio"
2553 mp3on4_decoder_select="mpegaudio"
2554 mp3on4float_decoder_select="mpegaudio"
2555 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2556 mpc8_decoder_select="mpegaudiodsp"
2557 mpegvideo_decoder_select="mpegvideo"
2558 mpeg1video_decoder_select="mpegvideo"
2559 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2560 mpeg2video_decoder_select="mpegvideo"
2561 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2562 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2563 mpeg4_encoder_select="h263_encoder"
2564 msa1_decoder_select="mss34dsp"
2565 mscc_decoder_deps="zlib"
2566 msmpeg4v1_decoder_select="h263_decoder"
2567 msmpeg4v2_decoder_select="h263_decoder"
2568 msmpeg4v2_encoder_select="h263_encoder"
2569 msmpeg4v3_decoder_select="h263_decoder"
2570 msmpeg4v3_encoder_select="h263_encoder"
2571 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2572 mts2_decoder_select="mss34dsp"
2573 mxpeg_decoder_select="mjpeg_decoder"
2574 nellymoser_decoder_select="mdct sinewin"
2575 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2576 nuv_decoder_select="idctdsp lzo"
2577 on2avc_decoder_select="mdct"
2578 opus_decoder_deps="swresample"
2579 opus_decoder_select="mdct15"
2580 opus_encoder_select="audio_frame_queue mdct15"
2581 png_decoder_deps="zlib"
2582 png_encoder_deps="zlib"
2583 png_encoder_select="llvidencdsp"
2584 prores_decoder_select="blockdsp idctdsp"
2585 prores_encoder_select="fdctdsp"
2586 qcelp_decoder_select="lsp"
2587 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2588 ra_144_decoder_select="audiodsp"
2589 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2590 ralf_decoder_select="golomb"
2591 rawvideo_decoder_select="bswapdsp"
2592 rscc_decoder_deps="zlib"
2593 rtjpeg_decoder_select="me_cmp"
2594 rv10_decoder_select="h263_decoder"
2595 rv10_encoder_select="h263_encoder"
2596 rv20_decoder_select="h263_decoder"
2597 rv20_encoder_select="h263_encoder"
2598 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2599 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2600 screenpresso_decoder_deps="zlib"
2601 shorten_decoder_select="bswapdsp"
2602 sipr_decoder_select="lsp"
2603 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2604 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2605 sonic_decoder_select="golomb rangecoder"
2606 sonic_encoder_select="golomb rangecoder"
2607 sonic_ls_encoder_select="golomb rangecoder"
2608 sp5x_decoder_select="mjpeg_decoder"
2609 srgc_decoder_deps="zlib"
2610 svq1_decoder_select="hpeldsp"
2611 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2612 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2613 svq3_decoder_suggest="zlib"
2614 tak_decoder_select="audiodsp"
2615 tdsc_decoder_deps="zlib"
2616 tdsc_decoder_select="mjpeg_decoder"
2617 theora_decoder_select="vp3_decoder"
2618 thp_decoder_select="mjpeg_decoder"
2619 tiff_decoder_suggest="zlib lzma"
2620 tiff_encoder_suggest="zlib"
2621 truehd_decoder_select="mlp_parser"
2622 truehd_encoder_select="lpc"
2623 truemotion2_decoder_select="bswapdsp"
2624 truespeech_decoder_select="bswapdsp"
2625 tscc_decoder_deps="zlib"
2626 twinvq_decoder_select="mdct lsp sinewin"
2627 txd_decoder_select="texturedsp"
2628 utvideo_decoder_select="bswapdsp llviddsp"
2629 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2630 vble_decoder_select="llviddsp"
2631 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2632 vc1image_decoder_select="vc1_decoder"
2633 vorbis_decoder_select="mdct"
2634 vorbis_encoder_select="mdct"
2635 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2636 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2637 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2638 vp6a_decoder_select="vp6_decoder"
2639 vp6f_decoder_select="vp6_decoder"
2640 vp7_decoder_select="h264pred videodsp vp8dsp"
2641 vp8_decoder_select="h264pred videodsp vp8dsp"
2642 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2643 webp_decoder_select="vp8_decoder exif"
2644 wmalossless_decoder_select="llauddsp"
2645 wmapro_decoder_select="mdct sinewin wma_freqs"
2646 wmav1_decoder_select="mdct sinewin wma_freqs"
2647 wmav1_encoder_select="mdct sinewin wma_freqs"
2648 wmav2_decoder_select="mdct sinewin wma_freqs"
2649 wmav2_encoder_select="mdct sinewin wma_freqs"
2650 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2651 wmv1_decoder_select="h263_decoder"
2652 wmv1_encoder_select="h263_encoder"
2653 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2654 wmv2_encoder_select="h263_encoder wmv2dsp"
2655 wmv3_decoder_select="vc1_decoder"
2656 wmv3image_decoder_select="wmv3_decoder"
2657 xma1_decoder_select="wmapro_decoder"
2658 xma2_decoder_select="wmapro_decoder"
2659 zerocodec_decoder_deps="zlib"
2660 zlib_decoder_deps="zlib"
2661 zlib_encoder_deps="zlib"
2662 zmbv_decoder_deps="zlib"
2663 zmbv_encoder_deps="zlib"
2664
2665 # hardware accelerators
2666 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2667 cuda_deps_any="libdl LoadLibrary"
2668 cuvid_deps="cuda"
2669 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2670 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2671 nvdec_deps="cuda"
2672 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2673 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2674 xvmc_deps="X11_extensions_XvMClib_h"
2675
2676 h263_vaapi_hwaccel_deps="vaapi"
2677 h263_vaapi_hwaccel_select="h263_decoder"
2678 h263_videotoolbox_hwaccel_deps="videotoolbox"
2679 h263_videotoolbox_hwaccel_select="h263_decoder"
2680 h264_d3d11va_hwaccel_deps="d3d11va"
2681 h264_d3d11va_hwaccel_select="h264_decoder"
2682 h264_d3d11va2_hwaccel_deps="d3d11va"
2683 h264_d3d11va2_hwaccel_select="h264_decoder"
2684 h264_dxva2_hwaccel_deps="dxva2"
2685 h264_dxva2_hwaccel_select="h264_decoder"
2686 h264_nvdec_hwaccel_deps="nvdec"
2687 h264_nvdec_hwaccel_select="h264_decoder"
2688 h264_vaapi_hwaccel_deps="vaapi"
2689 h264_vaapi_hwaccel_select="h264_decoder"
2690 h264_vdpau_hwaccel_deps="vdpau"
2691 h264_vdpau_hwaccel_select="h264_decoder"
2692 h264_videotoolbox_hwaccel_deps="videotoolbox"
2693 h264_videotoolbox_hwaccel_select="h264_decoder"
2694 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2695 hevc_d3d11va_hwaccel_select="hevc_decoder"
2696 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2697 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2698 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2699 hevc_dxva2_hwaccel_select="hevc_decoder"
2700 hevc_nvdec_hwaccel_deps="nvdec"
2701 hevc_nvdec_hwaccel_select="hevc_decoder"
2702 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2703 hevc_vaapi_hwaccel_select="hevc_decoder"
2704 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2705 hevc_vdpau_hwaccel_select="hevc_decoder"
2706 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2707 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2708 mpeg_xvmc_hwaccel_deps="xvmc"
2709 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2710 mpeg1_nvdec_hwaccel_deps="nvdec"
2711 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2712 mpeg1_vdpau_hwaccel_deps="vdpau"
2713 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2714 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2715 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2716 mpeg1_xvmc_hwaccel_deps="xvmc"
2717 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2718 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2719 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2720 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2721 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2722 mpeg2_dxva2_hwaccel_deps="dxva2"
2723 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2724 mpeg2_nvdec_hwaccel_deps="nvdec"
2725 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2726 mpeg2_vaapi_hwaccel_deps="vaapi"
2727 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2728 mpeg2_vdpau_hwaccel_deps="vdpau"
2729 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2730 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2731 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2732 mpeg2_xvmc_hwaccel_deps="xvmc"
2733 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2734 mpeg4_nvdec_hwaccel_deps="nvdec"
2735 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2736 mpeg4_vaapi_hwaccel_deps="vaapi"
2737 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2738 mpeg4_vdpau_hwaccel_deps="vdpau"
2739 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2740 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2741 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2742 vc1_d3d11va_hwaccel_deps="d3d11va"
2743 vc1_d3d11va_hwaccel_select="vc1_decoder"
2744 vc1_d3d11va2_hwaccel_deps="d3d11va"
2745 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2746 vc1_dxva2_hwaccel_deps="dxva2"
2747 vc1_dxva2_hwaccel_select="vc1_decoder"
2748 vc1_nvdec_hwaccel_deps="nvdec"
2749 vc1_nvdec_hwaccel_select="vc1_decoder"
2750 vc1_vaapi_hwaccel_deps="vaapi"
2751 vc1_vaapi_hwaccel_select="vc1_decoder"
2752 vc1_vdpau_hwaccel_deps="vdpau"
2753 vc1_vdpau_hwaccel_select="vc1_decoder"
2754 vp8_nvdec_hwaccel_deps="nvdec"
2755 vp8_nvdec_hwaccel_select="vp8_decoder"
2756 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2757 vp8_vaapi_hwaccel_select="vp8_decoder"
2758 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2759 vp9_d3d11va_hwaccel_select="vp9_decoder"
2760 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2761 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2762 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2763 vp9_dxva2_hwaccel_select="vp9_decoder"
2764 vp9_nvdec_hwaccel_deps="nvdec"
2765 vp9_nvdec_hwaccel_select="vp9_decoder"
2766 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2767 vp9_vaapi_hwaccel_select="vp9_decoder"
2768 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2769 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2770 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2771 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2772 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2773 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2774
2775 # hardware-accelerated codecs
2776 omx_deps="libdl pthreads"
2777 omx_rpi_select="omx"
2778 qsv_deps="libmfx"
2779 qsvdec_select="qsv"
2780 qsvenc_select="qsv"
2781 qsvvpp_select="qsv"
2782 vaapi_encode_deps="vaapi"
2783 v4l2_m2m_deps_any="linux_videodev2_h"
2784
2785 hwupload_cuda_filter_deps="cuda"
2786 scale_npp_filter_deps="cuda libnpp"
2787 scale_cuda_filter_deps="cuda_sdk"
2788 thumbnail_cuda_filter_deps="cuda_sdk"
2789
2790 amf_deps_any="libdl LoadLibrary"
2791 nvenc_deps="cuda"
2792 nvenc_deps_any="libdl LoadLibrary"
2793 nvenc_encoder_deps="nvenc"
2794
2795 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2796 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2797 h264_amf_encoder_deps="amf"
2798 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2799 h264_cuvid_decoder_deps="cuvid"
2800 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2801 h264_mediacodec_decoder_deps="mediacodec"
2802 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2803 h264_mmal_decoder_deps="mmal"
2804 h264_nvenc_encoder_deps="nvenc"
2805 h264_omx_encoder_deps="omx"
2806 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2807 h264_qsv_encoder_select="qsvenc"
2808 h264_rkmpp_decoder_deps="rkmpp"
2809 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2810 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2811 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2812 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2813 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2814 hevc_amf_encoder_deps="amf"
2815 hevc_cuvid_decoder_deps="cuvid"
2816 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2817 hevc_mediacodec_decoder_deps="mediacodec"
2818 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2819 hevc_nvenc_encoder_deps="nvenc"
2820 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2821 hevc_qsv_encoder_select="hevcparse qsvenc"
2822 hevc_rkmpp_decoder_deps="rkmpp"
2823 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2824 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2825 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2826 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2827 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2828 mjpeg_cuvid_decoder_deps="cuvid"
2829 mjpeg_qsv_encoder_deps="libmfx"
2830 mjpeg_qsv_encoder_select="qsvenc"
2831 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2832 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2833 mpeg1_cuvid_decoder_deps="cuvid"
2834 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2835 mpeg2_crystalhd_decoder_select="crystalhd"
2836 mpeg2_cuvid_decoder_deps="cuvid"
2837 mpeg2_mmal_decoder_deps="mmal"
2838 mpeg2_mediacodec_decoder_deps="mediacodec"
2839 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2840 mpeg2_qsv_encoder_select="qsvenc"
2841 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2842 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2843 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2844 mpeg4_crystalhd_decoder_select="crystalhd"
2845 mpeg4_cuvid_decoder_deps="cuvid"
2846 mpeg4_mediacodec_decoder_deps="mediacodec"
2847 mpeg4_mmal_decoder_deps="mmal"
2848 mpeg4_omx_encoder_deps="omx"
2849 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2850 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2851 msmpeg4_crystalhd_decoder_select="crystalhd"
2852 nvenc_h264_encoder_select="h264_nvenc_encoder"
2853 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2854 vc1_crystalhd_decoder_select="crystalhd"
2855 vc1_cuvid_decoder_deps="cuvid"
2856 vc1_mmal_decoder_deps="mmal"
2857 vc1_qsv_decoder_select="qsvdec vc1_parser"
2858 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2859 vp8_cuvid_decoder_deps="cuvid"
2860 vp8_mediacodec_decoder_deps="mediacodec"
2861 vp8_qsv_decoder_select="qsvdec vp8_parser"
2862 vp8_rkmpp_decoder_deps="rkmpp"
2863 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2864 vp8_vaapi_encoder_select="vaapi_encode"
2865 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2866 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2867 vp9_cuvid_decoder_deps="cuvid"
2868 vp9_mediacodec_decoder_deps="mediacodec"
2869 vp9_rkmpp_decoder_deps="rkmpp"
2870 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2871 vp9_vaapi_encoder_select="vaapi_encode"
2872 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2873 wmv3_crystalhd_decoder_select="crystalhd"
2874
2875 # parsers
2876 aac_parser_select="adts_header"
2877 h264_parser_select="golomb h264dsp h264parse"
2878 hevc_parser_select="hevcparse"
2879 mpegaudio_parser_select="mpegaudioheader"
2880 mpegvideo_parser_select="mpegvideo"
2881 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2882 vc1_parser_select="vc1dsp"
2883
2884 # bitstream_filters
2885 aac_adtstoasc_bsf_select="adts_header"
2886 h264_metadata_bsf_select="cbs_h264"
2887 h264_redundant_pps_bsf_select="cbs_h264"
2888 hevc_metadata_bsf_select="cbs_h265"
2889 mjpeg2jpeg_bsf_select="jpegtables"
2890 mpeg2_metadata_bsf_select="cbs_mpeg2"
2891 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2892
2893 # external libraries
2894 aac_at_decoder_deps="audiotoolbox"
2895 aac_at_decoder_select="aac_adtstoasc_bsf"
2896 ac3_at_decoder_deps="audiotoolbox"
2897 ac3_at_decoder_select="ac3_parser"
2898 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2899 alac_at_decoder_deps="audiotoolbox"
2900 amr_nb_at_decoder_deps="audiotoolbox"
2901 avisynth_deps_any="libdl LoadLibrary"
2902 avisynth_demuxer_deps="avisynth"
2903 avisynth_demuxer_select="riffdec"
2904 eac3_at_decoder_deps="audiotoolbox"
2905 eac3_at_decoder_select="ac3_parser"
2906 gsm_ms_at_decoder_deps="audiotoolbox"
2907 ilbc_at_decoder_deps="audiotoolbox"
2908 mp1_at_decoder_deps="audiotoolbox"
2909 mp2_at_decoder_deps="audiotoolbox"
2910 mp3_at_decoder_deps="audiotoolbox"
2911 mp1_at_decoder_select="mpegaudioheader"
2912 mp2_at_decoder_select="mpegaudioheader"
2913 mp3_at_decoder_select="mpegaudioheader"
2914 pcm_alaw_at_decoder_deps="audiotoolbox"
2915 pcm_mulaw_at_decoder_deps="audiotoolbox"
2916 qdmc_at_decoder_deps="audiotoolbox"
2917 qdm2_at_decoder_deps="audiotoolbox"
2918 aac_at_encoder_deps="audiotoolbox"
2919 aac_at_encoder_select="audio_frame_queue"
2920 alac_at_encoder_deps="audiotoolbox"
2921 alac_at_encoder_select="audio_frame_queue"
2922 ilbc_at_encoder_deps="audiotoolbox"
2923 ilbc_at_encoder_select="audio_frame_queue"
2924 pcm_alaw_at_encoder_deps="audiotoolbox"
2925 pcm_alaw_at_encoder_select="audio_frame_queue"
2926 pcm_mulaw_at_encoder_deps="audiotoolbox"
2927 pcm_mulaw_at_encoder_select="audio_frame_queue"
2928 chromaprint_muxer_deps="chromaprint"
2929 h264_videotoolbox_encoder_deps="pthreads"
2930 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2931 hevc_videotoolbox_encoder_deps="pthreads"
2932 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
2933 libcelt_decoder_deps="libcelt"
2934 libfdk_aac_decoder_deps="libfdk_aac"
2935 libfdk_aac_encoder_deps="libfdk_aac"
2936 libfdk_aac_encoder_select="audio_frame_queue"
2937 libgme_demuxer_deps="libgme"
2938 libgsm_decoder_deps="libgsm"
2939 libgsm_encoder_deps="libgsm"
2940 libgsm_ms_decoder_deps="libgsm"
2941 libgsm_ms_encoder_deps="libgsm"
2942 libilbc_decoder_deps="libilbc"
2943 libilbc_encoder_deps="libilbc"
2944 libkvazaar_encoder_deps="libkvazaar"
2945 libmodplug_demuxer_deps="libmodplug"
2946 libmp3lame_encoder_deps="libmp3lame"
2947 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2948 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2949 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2950 libopencore_amrnb_encoder_select="audio_frame_queue"
2951 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2952 libopenh264_decoder_deps="libopenh264"
2953 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2954 libopenh264_encoder_deps="libopenh264"
2955 libopenjpeg_decoder_deps="libopenjpeg"
2956 libopenjpeg_encoder_deps="libopenjpeg"
2957 libopenmpt_demuxer_deps="libopenmpt"
2958 libopus_decoder_deps="libopus"
2959 libopus_encoder_deps="libopus"
2960 libopus_encoder_select="audio_frame_queue"
2961 librsvg_decoder_deps="librsvg"
2962 libshine_encoder_deps="libshine"
2963 libshine_encoder_select="audio_frame_queue"
2964 libspeex_decoder_deps="libspeex"
2965 libspeex_encoder_deps="libspeex"
2966 libspeex_encoder_select="audio_frame_queue"
2967 libtheora_encoder_deps="libtheora"
2968 libtwolame_encoder_deps="libtwolame"
2969 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2970 libvorbis_decoder_deps="libvorbis"
2971 libvorbis_encoder_deps="libvorbis libvorbisenc"
2972 libvorbis_encoder_select="audio_frame_queue"
2973 libvpx_vp8_decoder_deps="libvpx"
2974 libvpx_vp8_encoder_deps="libvpx"
2975 libvpx_vp9_decoder_deps="libvpx"
2976 libvpx_vp9_encoder_deps="libvpx"
2977 libwavpack_encoder_deps="libwavpack"
2978 libwavpack_encoder_select="audio_frame_queue"
2979 libwebp_encoder_deps="libwebp"
2980 libwebp_anim_encoder_deps="libwebp"
2981 libx262_encoder_deps="libx262"
2982 libx264_encoder_deps="libx264"
2983 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2984 libx264rgb_encoder_select="libx264_encoder"
2985 libx265_encoder_deps="libx265"
2986 libxavs_encoder_deps="libxavs"
2987 libxvid_encoder_deps="libxvid"
2988 libzvbi_teletext_decoder_deps="libzvbi"
2989 videotoolbox_suggest="coreservices"
2990 videotoolbox_deps="corefoundation coremedia corevideo"
2991 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2992
2993 # demuxers / muxers
2994 ac3_demuxer_select="ac3_parser"
2995 aiff_muxer_select="iso_media"
2996 asf_demuxer_select="riffdec"
2997 asf_o_demuxer_select="riffdec"
2998 asf_muxer_select="riffenc"
2999 asf_stream_muxer_select="asf_muxer"
3000 avi_demuxer_select="iso_media riffdec exif"
3001 avi_muxer_select="riffenc"
3002 caf_demuxer_select="iso_media riffdec"
3003 caf_muxer_select="iso_media"
3004 dash_muxer_select="mp4_muxer"
3005 dash_demuxer_deps="libxml2"
3006 dirac_demuxer_select="dirac_parser"
3007 dts_demuxer_select="dca_parser"
3008 dtshd_demuxer_select="dca_parser"
3009 dv_demuxer_select="dvprofile"
3010 dv_muxer_select="dvprofile"
3011 dxa_demuxer_select="riffdec"
3012 eac3_demuxer_select="ac3_parser"
3013 f4v_muxer_select="mov_muxer"
3014 fifo_muxer_deps="threads"
3015 flac_demuxer_select="flac_parser"
3016 hds_muxer_select="flv_muxer"
3017 hls_muxer_select="mpegts_muxer"
3018 hls_muxer_suggest="gcrypt openssl"
3019 image2_alias_pix_demuxer_select="image2_demuxer"
3020 image2_brender_pix_demuxer_select="image2_demuxer"
3021 ipod_muxer_select="mov_muxer"
3022 ismv_muxer_select="mov_muxer"
3023 matroska_audio_muxer_select="matroska_muxer"
3024 matroska_demuxer_select="iso_media riffdec"
3025 matroska_demuxer_suggest="bzlib lzo zlib"
3026 matroska_muxer_select="iso_media riffenc"
3027 mmf_muxer_select="riffenc"
3028 mov_demuxer_select="iso_media riffdec"
3029 mov_demuxer_suggest="zlib"
3030 mov_muxer_select="iso_media riffenc rtpenc_chain"
3031 mp3_demuxer_select="mpegaudio_parser"
3032 mp3_muxer_select="mpegaudioheader"
3033 mp4_muxer_select="mov_muxer"
3034 mpegts_demuxer_select="iso_media"
3035 mpegts_muxer_select="adts_muxer latm_muxer"
3036 mpegtsraw_demuxer_select="mpegts_demuxer"
3037 mxf_d10_muxer_select="mxf_muxer"
3038 mxf_opatom_muxer_select="mxf_muxer"
3039 nut_muxer_select="riffenc"
3040 nuv_demuxer_select="riffdec"
3041 oga_muxer_select="ogg_muxer"
3042 ogg_demuxer_select="dirac_parse"
3043 ogv_muxer_select="ogg_muxer"
3044 opus_muxer_select="ogg_muxer"
3045 psp_muxer_select="mov_muxer"
3046 rtp_demuxer_select="sdp_demuxer"
3047 rtp_muxer_select="golomb"
3048 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3049 rtsp_demuxer_select="http_protocol rtpdec"
3050 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3051 sap_demuxer_select="sdp_demuxer"
3052 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3053 sdp_demuxer_select="rtpdec"
3054 smoothstreaming_muxer_select="ismv_muxer"
3055 spdif_demuxer_select="adts_header"
3056 spdif_muxer_select="adts_header"
3057 spx_muxer_select="ogg_muxer"
3058 swf_demuxer_suggest="zlib"
3059 tak_demuxer_select="tak_parser"
3060 tg2_muxer_select="mov_muxer"
3061 tgp_muxer_select="mov_muxer"
3062 vobsub_demuxer_select="mpegps_demuxer"
3063 w64_demuxer_select="wav_demuxer"
3064 w64_muxer_select="wav_muxer"
3065 wav_demuxer_select="riffdec"
3066 wav_muxer_select="riffenc"
3067 webm_muxer_select="iso_media riffenc"
3068 webm_dash_manifest_demuxer_select="matroska_demuxer"
3069 wtv_demuxer_select="mpegts_demuxer riffdec"
3070 wtv_muxer_select="mpegts_muxer riffenc"
3071 xmv_demuxer_select="riffdec"
3072 xwma_demuxer_select="riffdec"
3073
3074 # indevs / outdevs
3075 alsa_indev_deps="alsa"
3076 alsa_outdev_deps="alsa"
3077 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3078 avfoundation_indev_suggest="coregraphics applicationservices"
3079 avfoundation_indev_extralibs="-framework Foundation"
3080 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3081 caca_outdev_deps="libcaca"
3082 decklink_deps_any="libdl LoadLibrary"
3083 decklink_indev_deps="decklink threads"
3084 decklink_indev_extralibs="-lstdc++"
3085 decklink_outdev_deps="decklink threads"
3086 decklink_outdev_extralibs="-lstdc++"
3087 libndi_newtek_indev_deps="libndi_newtek"
3088 libndi_newtek_indev_extralibs="-lndi"
3089 libndi_newtek_outdev_deps="libndi_newtek"
3090 libndi_newtek_outdev_extralibs="-lndi"
3091 dshow_indev_deps="IBaseFilter"
3092 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3093 fbdev_indev_deps="linux_fb_h"
3094 fbdev_outdev_deps="linux_fb_h"
3095 gdigrab_indev_deps="CreateDIBSection"
3096 gdigrab_indev_extralibs="-lgdi32"
3097 gdigrab_indev_select="bmp_decoder"
3098 iec61883_indev_deps="libiec61883"
3099 jack_indev_deps="libjack"
3100 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3101 kmsgrab_indev_deps="libdrm"
3102 lavfi_indev_deps="avfilter"
3103 libcdio_indev_deps="libcdio"
3104 libdc1394_indev_deps="libdc1394"
3105 openal_indev_deps="openal"
3106 opengl_outdev_deps="opengl"
3107 oss_indev_deps_any="sys_soundcard_h"
3108 oss_outdev_deps_any="sys_soundcard_h"
3109 pulse_indev_deps="libpulse"
3110 pulse_outdev_deps="libpulse"
3111 sdl2_outdev_deps="sdl2"
3112 sndio_indev_deps="sndio"
3113 sndio_outdev_deps="sndio"
3114 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3115 v4l2_indev_suggest="libv4l2"
3116 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3117 v4l2_outdev_suggest="libv4l2"
3118 vfwcap_indev_deps="vfw32 vfwcap_defines"
3119 xcbgrab_indev_deps="libxcb"
3120 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3121 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3122 xv_outdev_extralibs="-lXv -lX11 -lXext"
3123
3124 # protocols
3125 async_protocol_deps="threads"
3126 bluray_protocol_deps="libbluray"
3127 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3128 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3129 ffrtmpcrypt_protocol_select="tcp_protocol"
3130 ffrtmphttp_protocol_conflict="librtmp_protocol"
3131 ffrtmphttp_protocol_select="http_protocol"
3132 ftp_protocol_select="tcp_protocol"
3133 gopher_protocol_select="network"
3134 http_protocol_select="tcp_protocol"
3135 http_protocol_suggest="zlib"
3136 httpproxy_protocol_select="tcp_protocol"
3137 httpproxy_protocol_suggest="zlib"
3138 https_protocol_select="tls_protocol"
3139 https_protocol_suggest="zlib"
3140 icecast_protocol_select="http_protocol"
3141 librtmp_protocol_deps="librtmp"
3142 librtmpe_protocol_deps="librtmp"
3143 librtmps_protocol_deps="librtmp"
3144 librtmpt_protocol_deps="librtmp"
3145 librtmpte_protocol_deps="librtmp"
3146 libsmbclient_protocol_deps="libsmbclient gplv3"
3147 libssh_protocol_deps="libssh"
3148 libtls_conflict="openssl gnutls"
3149 mmsh_protocol_select="http_protocol"
3150 mmst_protocol_select="network"
3151 rtmp_protocol_conflict="librtmp_protocol"
3152 rtmp_protocol_select="tcp_protocol"
3153 rtmp_protocol_suggest="zlib"
3154 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3155 rtmpe_protocol_suggest="zlib"
3156 rtmps_protocol_conflict="librtmp_protocol"
3157 rtmps_protocol_select="tls_protocol"
3158 rtmps_protocol_suggest="zlib"
3159 rtmpt_protocol_select="ffrtmphttp_protocol"
3160 rtmpt_protocol_suggest="zlib"
3161 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3162 rtmpte_protocol_suggest="zlib"
3163 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3164 rtmpts_protocol_suggest="zlib"
3165 rtp_protocol_select="udp_protocol"
3166 schannel_conflict="openssl gnutls libtls"
3167 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3168 sctp_protocol_select="network"
3169 securetransport_conflict="openssl gnutls libtls"
3170 srtp_protocol_select="rtp_protocol srtp"
3171 tcp_protocol_select="network"
3172 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls"
3173 tls_protocol_select="tcp_protocol"
3174 udp_protocol_select="network"
3175 udplite_protocol_select="network"
3176 unix_protocol_deps="sys_un_h"
3177 unix_protocol_select="network"
3178
3179 # filters
3180 afftfilt_filter_deps="avcodec"
3181 afftfilt_filter_select="fft"
3182 afir_filter_deps="avcodec"
3183 afir_filter_select="fft"
3184 amovie_filter_deps="avcodec avformat"
3185 aresample_filter_deps="swresample"
3186 ass_filter_deps="libass"
3187 atempo_filter_deps="avcodec"
3188 atempo_filter_select="rdft"
3189 azmq_filter_deps="libzmq"
3190 blackframe_filter_deps="gpl"
3191 boxblur_filter_deps="gpl"
3192 bs2b_filter_deps="libbs2b"
3193 colormatrix_filter_deps="gpl"
3194 convolve_filter_deps="avcodec"
3195 convolve_filter_select="fft"
3196 coreimage_filter_deps="coreimage appkit"
3197 coreimage_filter_extralibs="-framework OpenGL"
3198 coreimagesrc_filter_deps="coreimage appkit"
3199 coreimagesrc_filter_extralibs="-framework OpenGL"
3200 cover_rect_filter_deps="avcodec avformat gpl"
3201 cropdetect_filter_deps="gpl"
3202 deconvolve_filter_deps="avcodec"
3203 deconvolve_filter_select="fft"
3204 deinterlace_qsv_filter_deps="libmfx"
3205 deinterlace_vaapi_filter_deps="vaapi"
3206 delogo_filter_deps="gpl"
3207 denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3208 deshake_filter_select="pixelutils"
3209 drawtext_filter_deps="libfreetype"
3210 drawtext_filter_suggest="libfontconfig libfribidi"
3211 elbg_filter_deps="avcodec"
3212 eq_filter_deps="gpl"
3213 fftfilt_filter_deps="avcodec"
3214 fftfilt_filter_select="rdft"
3215 find_rect_filter_deps="avcodec avformat gpl"
3216 firequalizer_filter_deps="avcodec"
3217 firequalizer_filter_select="rdft"
3218 flite_filter_deps="libflite"
3219 framerate_filter_select="pixelutils"
3220 frei0r_filter_deps="frei0r libdl"
3221 frei0r_src_filter_deps="frei0r libdl"
3222 fspp_filter_deps="gpl"
3223 geq_filter_deps="gpl"
3224 histeq_filter_deps="gpl"
3225 hqdn3d_filter_deps="gpl"
3226 interlace_filter_deps="gpl"
3227 kerndeint_filter_deps="gpl"
3228 ladspa_filter_deps="ladspa libdl"
3229 lv2_filter_deps="lv2"
3230 mcdeint_filter_deps="avcodec gpl"
3231 movie_filter_deps="avcodec avformat"
3232 mpdecimate_filter_deps="gpl"
3233 mpdecimate_filter_select="pixelutils"
3234 mptestsrc_filter_deps="gpl"
3235 negate_filter_deps="lut_filter"
3236 nnedi_filter_deps="gpl"
3237 ocr_filter_deps="libtesseract"
3238 ocv_filter_deps="libopencv"
3239 openclsrc_filter_deps="opencl"
3240 overlay_opencl_filter_deps="opencl"
3241 overlay_qsv_filter_deps="libmfx"
3242 overlay_qsv_filter_select="qsvvpp"
3243 owdenoise_filter_deps="gpl"
3244 pan_filter_deps="swresample"
3245 perspective_filter_deps="gpl"
3246 phase_filter_deps="gpl"
3247 pp7_filter_deps="gpl"
3248 pp_filter_deps="gpl postproc"
3249 procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3250 program_opencl_filter_deps="opencl"
3251 pullup_filter_deps="gpl"
3252 removelogo_filter_deps="avcodec avformat swscale"
3253 repeatfields_filter_deps="gpl"
3254 resample_filter_deps="avresample"
3255 rubberband_filter_deps="librubberband"
3256 sab_filter_deps="gpl swscale"
3257 scale2ref_filter_deps="swscale"
3258 scale_filter_deps="swscale"
3259 scale_qsv_filter_deps="libmfx"
3260 select_filter_select="pixelutils"
3261 sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3262 showcqt_filter_deps="avcodec avformat swscale"
3263 showcqt_filter_suggest="libfontconfig libfreetype"
3264 showcqt_filter_select="fft"
3265 showfreqs_filter_deps="avcodec"
3266 showfreqs_filter_select="fft"
3267 showspectrum_filter_deps="avcodec"
3268 showspectrum_filter_select="fft"
3269 showspectrumpic_filter_deps="avcodec"
3270 showspectrumpic_filter_select="fft"
3271 signature_filter_deps="gpl avcodec avformat"
3272 smartblur_filter_deps="gpl swscale"
3273 sofalizer_filter_deps="libmysofa avcodec"
3274 sofalizer_filter_select="fft"
3275 spectrumsynth_filter_deps="avcodec"
3276 spectrumsynth_filter_select="fft"
3277 spp_filter_deps="gpl avcodec"
3278 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3279 stereo3d_filter_deps="gpl"
3280 subtitles_filter_deps="avformat avcodec libass"
3281 super2xsai_filter_deps="gpl"
3282 pixfmts_super2xsai_test_deps="super2xsai_filter"
3283 tinterlace_filter_deps="gpl"
3284 tinterlace_merge_test_deps="tinterlace_filter"
3285 tinterlace_pad_test_deps="tinterlace_filter"
3286 tonemap_filter_deps="const_nan"
3287 unsharp_opencl_filter_deps="opencl"
3288 uspp_filter_deps="gpl avcodec"
3289 vaguedenoiser_filter_deps="gpl"
3290 vidstabdetect_filter_deps="libvidstab"
3291 vidstabtransform_filter_deps="libvidstab"
3292 libvmaf_filter_deps="libvmaf pthreads"
3293 zmq_filter_deps="libzmq"
3294 zoompan_filter_deps="swscale"
3295 zscale_filter_deps="libzimg const_nan"
3296 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3297 vpp_qsv_filter_deps="libmfx"
3298 vpp_qsv_filter_select="qsvvpp"
3299
3300 # examples
3301 avio_dir_cmd_deps="avformat avutil"
3302 avio_reading_deps="avformat avcodec avutil"
3303 decode_audio_example_deps="avcodec avutil"
3304 decode_video_example_deps="avcodec avutil"
3305 demuxing_decoding_example_deps="avcodec avformat avutil"
3306 encode_audio_example_deps="avcodec avutil"
3307 encode_video_example_deps="avcodec avutil"
3308 extract_mvs_example_deps="avcodec avformat avutil"
3309 filter_audio_example_deps="avfilter avutil"
3310 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3311 filtering_video_example_deps="avfilter avcodec avformat avutil"
3312 http_multiclient_example_deps="avformat avutil fork"
3313 hw_decode_example_deps="avcodec avformat avutil"
3314 metadata_example_deps="avformat avutil"
3315 muxing_example_deps="avcodec avformat avutil swscale"
3316 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3317 remuxing_example_deps="avcodec avformat avutil"
3318 resampling_audio_example_deps="avutil swresample"
3319 scaling_video_example_deps="avutil swscale"
3320 transcode_aac_example_deps="avcodec avformat swresample"
3321 transcoding_example_deps="avfilter avcodec avformat avutil"
3322 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3323
3324 # EXTRALIBS_LIST
3325 cpu_init_extralibs="pthreads_extralibs"
3326 cws2fws_extralibs="zlib_extralibs"
3327
3328 # libraries, in linking order
3329 avcodec_deps="avutil"
3330 avcodec_suggest="libm"
3331 avcodec_select="null_bsf"
3332 avdevice_deps="avformat avcodec avutil"
3333 avdevice_suggest="libm"
3334 avfilter_deps="avutil"
3335 avfilter_suggest="libm"
3336 avformat_deps="avcodec avutil"
3337 avformat_suggest="libm network zlib"
3338 avresample_deps="avutil"
3339 avresample_suggest="libm"
3340 avutil_suggest="clock_gettime cuda libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3341 postproc_deps="avutil gpl"
3342 postproc_suggest="libm"
3343 swresample_deps="avutil"
3344 swresample_suggest="libm libsoxr"
3345 swscale_deps="avutil"
3346 swscale_suggest="libm"
3347
3348 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3349 avfilter_extralibs="pthreads_extralibs"
3350 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3351
3352 # programs
3353 ffmpeg_deps="avcodec avfilter avformat swresample"
3354 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3355                null_filter
3356                trim_filter"
3357 ffmpeg_suggest="ole32 psapi shell32"
3358 ffplay_deps="avcodec avformat swscale swresample sdl2"
3359 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3360 ffplay_suggest="shell32"
3361 ffprobe_deps="avcodec avformat"
3362 ffprobe_suggest="shell32"
3363
3364 # documentation
3365 podpages_deps="perl"
3366 manpages_deps="perl pod2man"
3367 htmlpages_deps="perl"
3368 htmlpages_deps_any="makeinfo_html texi2html"
3369 txtpages_deps="perl makeinfo"
3370 doc_deps_any="manpages htmlpages podpages txtpages"
3371
3372 # default parameters
3373
3374 logfile="ffbuild/config.log"
3375
3376 # installation paths
3377 prefix_default="/usr/local"
3378 bindir_default='${prefix}/bin'
3379 datadir_default='${prefix}/share/ffmpeg'
3380 docdir_default='${prefix}/share/doc/ffmpeg'
3381 incdir_default='${prefix}/include'
3382 libdir_default='${prefix}/lib'
3383 mandir_default='${prefix}/share/man'
3384
3385 # toolchain
3386 ar_default="ar"
3387 cc_default="gcc"
3388 cxx_default="g++"
3389 host_cc_default="gcc"
3390 doxygen_default="doxygen"
3391 install="install"
3392 ln_s_default="ln -s -f"
3393 nm_default="nm -g"
3394 pkg_config_default=pkg-config
3395 ranlib_default="ranlib"
3396 strip_default="strip"
3397 version_script='--version-script'
3398 objformat="elf32"
3399 x86asmexe_default="nasm"
3400 windres_default="windres"
3401 nvcc_default="nvcc"
3402 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3403 striptype="direct"
3404
3405 # OS
3406 target_os_default=$(tolower $(uname -s))
3407 host_os=$target_os_default
3408
3409 # machine
3410 if test "$target_os_default" = aix; then
3411     arch_default=$(uname -p)
3412     strip_default="strip -X32_64"
3413 else
3414     arch_default=$(uname -m)
3415 fi
3416 cpu="generic"
3417 intrinsics="none"
3418
3419 # configurable options
3420 enable $PROGRAM_LIST
3421 enable $DOCUMENT_LIST
3422 enable $EXAMPLE_LIST
3423 enable $(filter_out avresample $LIBRARY_LIST)
3424 enable stripping
3425
3426 enable asm
3427 enable debug
3428 enable doc
3429 enable faan faandct faanidct
3430 enable optimizations
3431 enable runtime_cpudetect
3432 enable safe_bitstream_reader
3433 enable static
3434 enable swscale_alpha
3435 enable valgrind_backtrace
3436
3437 sws_max_filter_size_default=256
3438 set_default sws_max_filter_size
3439
3440 # internal components are enabled by default
3441 enable $EXTRALIBS_LIST
3442
3443 # Avoid external, non-system, libraries getting enabled by dependency resolution
3444 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3445
3446 # build settings
3447 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3448 LIBPREF="lib"
3449 LIBSUF=".a"
3450 FULLNAME='$(NAME)$(BUILDSUF)'
3451 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3452 SLIBPREF="lib"
3453 SLIBSUF=".so"
3454 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3455 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3456 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3457 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3458 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3459 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3460 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3461
3462 asflags_filter=echo
3463 cflags_filter=echo
3464 ldflags_filter=echo
3465
3466 AS_C='-c'
3467 AS_O='-o $@'
3468 CC_C='-c'
3469 CC_E='-E -o $@'
3470 CC_O='-o $@'
3471 CXX_C='-c'
3472 CXX_O='-o $@'
3473 OBJCC_C='-c'
3474 OBJCC_E='-E -o $@'
3475 OBJCC_O='-o $@'
3476 X86ASM_O='-o $@'
3477 LD_O='-o $@'
3478 LD_LIB='-l%'
3479 LD_PATH='-L'
3480 HOSTCC_C='-c'
3481 HOSTCC_E='-E -o $@'
3482 HOSTCC_O='-o $@'
3483 HOSTLD_O='-o $@'
3484 NVCC_C='-c'
3485 NVCC_O='-o $@'
3486
3487 host_extralibs='-lm'
3488 host_cflags_filter=echo
3489 host_ldflags_filter=echo
3490
3491 target_path='$(CURDIR)'
3492
3493 # since the object filename is not given with the -MM flag, the compiler
3494 # is only able to print the basename, and we must add the path ourselves
3495 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3496 DEPFLAGS='-MM'
3497
3498 mkdir -p ffbuild
3499
3500 # find source path
3501 if test -f configure; then
3502     source_path=.
3503 else
3504     source_path=$(cd $(dirname "$0"); pwd)
3505     case "$source_path" in
3506         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3507     esac
3508     test -e "$source_path/config.h" &&
3509         die "Out of tree builds are impossible with config.h in source dir."
3510 fi
3511
3512 for v in "$@"; do
3513     r=${v#*=}
3514     l=${v%"$r"}
3515     r=$(sh_quote "$r")
3516     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3517 done
3518
3519 find_things(){
3520     thing=$1
3521     pattern=$2
3522     file=$source_path/$3
3523     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3524 }
3525
3526 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3527 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3528 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3529 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3530 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3531 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3532 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3533 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3534
3535 find_things_extern(){
3536     thing=$1
3537     pattern=$2
3538     file=$source_path/$3
3539     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3540 }
3541
3542 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3543 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3544 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3545
3546 AVCODEC_COMPONENTS_LIST="
3547     $BSF_LIST
3548     $DECODER_LIST
3549     $ENCODER_LIST
3550     $HWACCEL_LIST
3551     $PARSER_LIST
3552 "
3553
3554 AVDEVICE_COMPONENTS_LIST="
3555     $INDEV_LIST
3556     $OUTDEV_LIST
3557 "
3558
3559 AVFILTER_COMPONENTS_LIST="
3560     $FILTER_LIST
3561 "
3562
3563 AVFORMAT_COMPONENTS_LIST="
3564     $DEMUXER_LIST
3565     $MUXER_LIST
3566     $PROTOCOL_LIST
3567 "
3568
3569 ALL_COMPONENTS="
3570     $AVCODEC_COMPONENTS_LIST
3571     $AVDEVICE_COMPONENTS_LIST
3572     $AVFILTER_COMPONENTS_LIST
3573     $AVFORMAT_COMPONENTS_LIST
3574 "
3575
3576 for n in $COMPONENT_LIST; do
3577     v=$(toupper ${n%s})_LIST
3578     eval enable \$$v
3579     eval ${n}_if_any="\$$v"
3580 done
3581
3582 enable $ARCH_EXT_LIST
3583
3584 die_unknown(){
3585     echo "Unknown option \"$1\"."
3586     echo "See $0 --help for available options."
3587     exit 1
3588 }
3589
3590 print_in_columns() {
3591     cols=$(expr $ncols / 24)
3592     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3593 }
3594
3595 show_list() {
3596     suffix=_$1
3597     shift
3598     echo $* | sed s/$suffix//g | print_in_columns
3599     exit 0
3600 }
3601
3602 rand_list(){
3603     IFS=', '
3604     set -- $*
3605     unset IFS
3606     for thing; do
3607         comp=${thing%:*}
3608         prob=${thing#$comp}
3609         prob=${prob#:}
3610         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3611         echo "prob ${prob:-0.5}"
3612         printf '%s\n' $comp
3613     done
3614 }
3615
3616 do_random(){
3617     action=$1
3618     shift
3619     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3620     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3621 }
3622
3623 for opt do
3624     optval="${opt#*=}"
3625     case "$opt" in
3626         --extra-ldflags=*)
3627             add_ldflags $optval
3628         ;;
3629         --extra-ldexeflags=*)
3630             add_ldexeflags $optval
3631         ;;
3632         --extra-ldsoflags=*)
3633             add_ldsoflags $optval
3634         ;;
3635         --extra-ldlibflags=*)
3636             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3637                  "removed in the future. Use --extra-ldsoflags instead."
3638             add_ldsoflags $optval
3639         ;;
3640         --extra-libs=*)
3641             add_extralibs $optval
3642         ;;
3643         --disable-devices)
3644             disable $INDEV_LIST $OUTDEV_LIST
3645         ;;
3646         --enable-debug=*)
3647             debuglevel="$optval"
3648         ;;
3649         --disable-programs)
3650             disable $PROGRAM_LIST
3651         ;;
3652         --disable-everything)
3653             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3654         ;;
3655         --disable-all)
3656             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3657             disable $LIBRARY_LIST $PROGRAM_LIST doc
3658             enable avutil
3659         ;;
3660         --enable-random|--disable-random)
3661             action=${opt%%-random}
3662             do_random ${action#--} $COMPONENT_LIST
3663         ;;
3664         --enable-random=*|--disable-random=*)
3665             action=${opt%%-random=*}
3666             do_random ${action#--} $optval
3667         ;;
3668         --enable-sdl)
3669             enable sdl2
3670         ;;
3671         --enable-*=*|--disable-*=*)
3672             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3673             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3674             eval list=\$$(toupper $thing)_LIST
3675             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3676             list=$(filter "$name" $list)
3677             [ "$list" = "" ] && warn "Option $opt did not match anything"
3678             $action $list
3679         ;;
3680         --enable-yasm|--disable-yasm)
3681             warn "The ${opt} option is only provided for compatibility and will be\n"\
3682                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3683             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3684         ;;
3685         --yasmexe=*)
3686             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3687                  "removed in the future. Use --x86asmexe instead."
3688             x86asmexe="$optval"
3689         ;;
3690         --enable-?*|--disable-?*)
3691             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3692             if is_in $option $COMPONENT_LIST; then
3693                 test $action = disable && action=unset
3694                 eval $action \$$(toupper ${option%s})_LIST
3695             elif is_in $option $CMDLINE_SELECT; then
3696                 $action $option
3697             else
3698                 die_unknown $opt
3699             fi
3700         ;;
3701         --list-*)
3702             NAME="${opt#--list-}"
3703             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3704             NAME=${NAME%s}
3705             eval show_list $NAME \$$(toupper $NAME)_LIST
3706         ;;
3707         --help|-h) show_help
3708         ;;
3709         --quiet|-q) quiet=yes
3710         ;;
3711         --fatal-warnings) enable fatal_warnings
3712         ;;
3713         --libfuzzer=*)
3714             libfuzzer_path="$optval"
3715         ;;
3716         *)
3717             optname="${opt%%=*}"
3718             optname="${optname#--}"
3719             optname=$(echo "$optname" | sed 's/-/_/g')
3720             if is_in $optname $CMDLINE_SET; then
3721                 eval $optname='$optval'
3722             elif is_in $optname $CMDLINE_APPEND; then
3723                 append $optname "$optval"
3724             else
3725                 die_unknown $opt
3726             fi
3727         ;;
3728     esac
3729 done
3730
3731 for e in $env; do
3732     eval "export $e"
3733 done
3734
3735 if disabled autodetect; then
3736
3737     # Unless iconv is explicitely disabled by the user, we still want to probe
3738     # for the iconv from the libc.
3739     disabled iconv || enable libc_iconv
3740
3741     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3742     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3743 fi
3744 # Mark specifically enabled, but normally autodetected libraries as requested.
3745 for lib in $AUTODETECT_LIBS; do
3746     enabled $lib && request $lib
3747 done
3748 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3749 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3750 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3751
3752 disabled logging && logfile=/dev/null
3753
3754 # command line configuration sanity checks
3755
3756 # we need to build at least one lib type
3757 if ! enabled_any static shared; then
3758     cat <<EOF
3759 At least one library type must be built.
3760 Specify --enable-static to build the static libraries or --enable-shared to
3761 build the shared libraries as well. To only build the shared libraries specify
3762 --disable-static in addition to --enable-shared.
3763 EOF
3764     exit 1
3765 fi
3766
3767 die_license_disabled() {
3768     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3769 }
3770
3771 die_license_disabled_gpl() {
3772     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3773 }
3774
3775 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3776 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3777
3778 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3779 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3780
3781 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3782
3783 enabled_all gnutls openssl &&
3784     die "GnuTLS and OpenSSL must not be enabled at the same time."
3785
3786 # Disable all the library-specific components if the library itself
3787 # is disabled, see AVCODEC_LIST and following _LIST variables.
3788
3789 disable_components(){
3790     disabled ${1} && disable $(
3791         eval components="\$$(toupper ${1})_COMPONENTS"
3792         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3793     )
3794 }
3795
3796 map 'disable_components $v' $LIBRARY_LIST
3797
3798 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3799 set >> $logfile
3800
3801 test -n "$valgrind" && toolchain="valgrind-memcheck"
3802
3803 enabled ossfuzz && {
3804     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3805     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3806 }
3807
3808 case "$toolchain" in
3809     *-asan)
3810         cc_default="${toolchain%-asan}"
3811         add_cflags  -fsanitize=address
3812         add_ldflags -fsanitize=address
3813     ;;
3814     *-msan)
3815         cc_default="${toolchain%-msan}"
3816         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3817         add_ldflags -fsanitize=memory
3818     ;;
3819     *-tsan)
3820         cc_default="${toolchain%-tsan}"
3821         add_cflags  -fsanitize=thread -fPIE
3822         add_ldflags -fsanitize=thread -pie
3823         case "$toolchain" in
3824             gcc-tsan)
3825                 add_cflags  -fPIC
3826                 add_ldflags -fPIC
3827                 ;;
3828         esac
3829     ;;
3830     *-usan)
3831         cc_default="${toolchain%-usan}"
3832         add_cflags  -fsanitize=undefined
3833         add_ldflags -fsanitize=undefined
3834     ;;
3835     valgrind-*)
3836         target_exec_default="valgrind"
3837         case "$toolchain" in
3838             valgrind-massif)
3839                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3840                 ;;
3841             valgrind-memcheck)
3842                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3843                 ;;
3844         esac
3845     ;;
3846     msvc)
3847         # Check whether the current MSVC version needs the C99 converter.
3848         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3849         # support enough of C99 to build ffmpeg. Default to the new
3850         # behaviour if the regexp was unable to match anything, since this
3851         # successfully parses the version number of existing supported
3852         # versions that require the converter (MSVC 2010 and 2012).
3853         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3854         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3855             cc_default="cl"
3856             cxx_default="cl"
3857         else
3858             cc_default="c99wrap cl"
3859             cxx_default="c99wrap cl"
3860         fi
3861         ld_default="$source_path/compat/windows/mslink"
3862         nm_default="dumpbin -symbols"
3863         ar_default="lib"
3864         case "$arch" in
3865         aarch64|arm64)
3866             as_default="armasm64"
3867             ;;
3868         arm*)
3869             as_default="armasm"
3870             ;;
3871         esac
3872         target_os_default="win32"
3873         # Use a relative path for TMPDIR. This makes sure all the
3874         # ffconf temp files are written with a relative path, avoiding
3875         # issues with msys/win32 path conversion for MSVC parameters
3876         # such as -Fo<file> or -out:<file>.
3877         TMPDIR=.
3878     ;;
3879     icl)
3880         cc_default="icl"
3881         ld_default="xilink"
3882         nm_default="dumpbin -symbols"
3883         ar_default="xilib"
3884         target_os_default="win32"
3885         TMPDIR=.
3886     ;;
3887     gcov)
3888         add_cflags  -fprofile-arcs -ftest-coverage
3889         add_ldflags -fprofile-arcs -ftest-coverage
3890     ;;
3891     llvm-cov)
3892         add_cflags -fprofile-arcs -ftest-coverage
3893         add_ldflags --coverage
3894     ;;
3895     hardened)
3896         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3897         add_cflags   -fno-strict-overflow -fstack-protector-all
3898         add_ldflags  -Wl,-z,relro -Wl,-z,now
3899         add_cflags   -fPIE
3900         add_ldexeflags -fPIE -pie
3901     ;;
3902     ?*)
3903         die "Unknown toolchain $toolchain"
3904     ;;
3905 esac
3906
3907 if test -n "$cross_prefix"; then
3908     test -n "$arch" && test -n "$target_os" ||
3909         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3910     enable cross_compile
3911 fi
3912
3913 ar_default="${cross_prefix}${ar_default}"
3914 cc_default="${cross_prefix}${cc_default}"
3915 cxx_default="${cross_prefix}${cxx_default}"
3916 nm_default="${cross_prefix}${nm_default}"
3917 pkg_config_default="${cross_prefix}${pkg_config_default}"
3918 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3919     ranlib_default="${cross_prefix}${ranlib_default} -D"
3920 else
3921     ranlib_default="${cross_prefix}${ranlib_default}"
3922 fi
3923 strip_default="${cross_prefix}${strip_default}"
3924 windres_default="${cross_prefix}${windres_default}"
3925
3926 sysinclude_default="${sysroot}/usr/include"
3927
3928 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3929     target_exec target_os x86asmexe nvcc
3930 enabled cross_compile || host_cc_default=$cc
3931 set_default host_cc
3932
3933 pkg_config_fail_message=""
3934 if ! $pkg_config --version >/dev/null 2>&1; then
3935     warn "$pkg_config not found, library detection may fail."
3936     pkg_config=false
3937 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3938     pkg_config_fail_message="
3939 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3940 fi
3941
3942 if test $doxygen != $doxygen_default && \
3943   ! $doxygen --version >/dev/null 2>&1; then
3944     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3945 fi
3946
3947 exesuf() {
3948     case $1 in
3949         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3950     esac
3951 }
3952
3953 EXESUF=$(exesuf $target_os)
3954 HOSTEXESUF=$(exesuf $host_os)
3955
3956 # set temporary file name
3957 : ${TMPDIR:=$TEMPDIR}
3958 : ${TMPDIR:=$TMP}
3959 : ${TMPDIR:=/tmp}
3960
3961 if [ -n "$tempprefix" ] ; then
3962     mktemp(){
3963         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3964         echo "$tmpname"
3965         mkdir "$tmpname"
3966     }
3967 elif ! check_cmd mktemp -u XXXXXX; then
3968     # simple replacement for missing mktemp
3969     # NOT SAFE FOR GENERAL USE
3970     mktemp(){
3971         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3972         echo "$tmpname"
3973         mkdir "$tmpname"
3974     }
3975 fi
3976
3977 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3978     die "Unable to create temporary directory in $TMPDIR."
3979
3980 tmpfile(){
3981     tmp="${FFTMPDIR}/test"$2
3982     (set -C; exec > $tmp) 2> /dev/null ||
3983         die "Unable to create temporary file in $FFTMPDIR."
3984     eval $1=$tmp
3985 }
3986
3987 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3988 trap 'exit 2' INT
3989
3990 tmpfile TMPASM .asm
3991 tmpfile TMPC   .c
3992 tmpfile TMPCPP .cpp
3993 tmpfile TMPE   $EXESUF
3994 tmpfile TMPH   .h
3995 tmpfile TMPM   .m
3996 tmpfile TMPO   .o
3997 tmpfile TMPS   .S
3998 tmpfile TMPSH  .sh
3999 tmpfile TMPV   .ver
4000
4001 unset -f mktemp
4002
4003 chmod +x $TMPE
4004
4005 # make sure we can execute files in $TMPDIR
4006 cat > $TMPSH 2>> $logfile <<EOF
4007 #! /bin/sh
4008 EOF
4009 chmod +x $TMPSH >> $logfile 2>&1
4010 if ! $TMPSH >> $logfile 2>&1; then
4011     cat <<EOF
4012 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4013 variable to another directory and make sure that it is not mounted noexec.
4014 EOF
4015     die "Sanity test failed."
4016 fi
4017
4018 armasm_flags(){
4019     for flag; do
4020         case $flag in
4021             # Filter out MSVC cl.exe options from cflags that shouldn't
4022             # be passed to gas-preprocessor
4023             -M[TD]*)                                            ;;
4024             *)                  echo $flag                      ;;
4025         esac
4026    done
4027 }
4028
4029 cparser_flags(){
4030     for flag; do
4031         case $flag in
4032             -Wno-switch)             echo -Wno-switch-enum ;;
4033             -Wno-format-zero-length) ;;
4034             -Wdisabled-optimization) ;;
4035             -Wno-pointer-sign)       echo -Wno-other ;;
4036             *)                       echo $flag ;;
4037         esac
4038     done
4039 }
4040
4041 msvc_common_flags(){
4042     for flag; do
4043         case $flag in
4044             # In addition to specifying certain flags under the compiler
4045             # specific filters, they must be specified here as well or else the
4046             # generic catch all at the bottom will print the original flag.
4047             -Wall)                ;;
4048             -Wextra)              ;;
4049             -std=c99)             ;;
4050             # Common flags
4051             -fomit-frame-pointer) ;;
4052             -g)                   echo -Z7 ;;
4053             -fno-math-errno)      ;;
4054             -fno-common)          ;;
4055             -fno-signed-zeros)    ;;
4056             -fPIC)                ;;
4057             -mthumb)              ;;
4058             -march=*)             ;;
4059             -lz)                  echo zlib.lib ;;
4060             -lx264)               echo libx264.lib ;;
4061             -lstdc++)             ;;
4062             -l*)                  echo ${flag#-l}.lib ;;
4063             -LARGEADDRESSAWARE)   echo $flag ;;
4064             -L*)                  echo -libpath:${flag#-L} ;;
4065             *)                    echo $flag ;;
4066         esac
4067     done
4068 }
4069
4070 msvc_flags(){
4071     msvc_common_flags "$@"
4072     for flag; do
4073         case $flag in
4074             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4075                                        -wd4554 ;;
4076             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4077                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4078                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4079                                        -wd4307 \
4080                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4081         esac
4082     done
4083 }
4084
4085 icl_flags(){
4086     msvc_common_flags "$@"
4087     for flag; do
4088         case $flag in
4089             # Despite what Intel's documentation says -Wall, which is supported
4090             # on Windows, does enable remarks so disable them here.
4091             -Wall)                echo $flag -Qdiag-disable:remark ;;
4092             -std=c99)             echo -Qstd=c99 ;;
4093             -flto)                echo -ipo ;;
4094         esac
4095     done
4096 }
4097
4098 icc_flags(){
4099     for flag; do
4100         case $flag in
4101             -flto)                echo -ipo ;;
4102             *)                    echo $flag ;;
4103         esac
4104     done
4105 }
4106
4107 suncc_flags(){
4108     for flag; do
4109         case $flag in
4110             -march=*|-mcpu=*)
4111                 case "${flag#*=}" in
4112                     native)                   echo -xtarget=native       ;;
4113                     v9|niagara)               echo -xarch=sparc          ;;
4114                     ultrasparc)               echo -xarch=sparcvis       ;;
4115                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4116                     i586|pentium)             echo -xchip=pentium        ;;
4117                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4118                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4119                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4120                     pentium4*)          echo -xtarget=pentium4           ;;
4121                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4122                     *-sse3)             echo -xarch=sse3                 ;;
4123                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4124                     bonnell)                   echo -xarch=ssse3         ;;
4125                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4126                     westmere)                  echo -xtarget=westmere    ;;
4127                     silvermont)                echo -xarch=sse4_2        ;;
4128                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4129                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4130                                                echo -xarch=avx           ;;
4131                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4132                     btver1)                    echo -xarch=amdsse4a      ;;
4133                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4134                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4135                     k8|opteron|athlon64|athlon-fx)
4136                                                echo -xarch=sse2a         ;;
4137                     athlon*)                   echo -xarch=pentium_proa  ;;
4138                 esac