avcodec: Implement vc1 nvdec hwaccel
[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   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188   --disable-v4l2_m2m       disable V4L2 mem2mem code [autodetect]
189
190 External library support:
191
192   Using any of the following switches will allow FFmpeg to link to the
193   corresponding external library. All the components depending on that library
194   will become enabled, if all their other dependencies are met and they are not
195   explicitly disabled. E.g. --enable-libwavpack will enable linking to
196   libwavpack and allow the libwavpack encoder to be built, unless it is
197   specifically disabled with --disable-encoder=libwavpack.
198
199   Note that only the system libraries are auto-detected. All the other external
200   libraries must be explicitly enabled.
201
202   Also note that the following help text describes the purpose of the libraries
203   themselves, not all their features will necessarily be usable by FFmpeg.
204
205   --disable-alsa           disable ALSA support [autodetect]
206   --disable-appkit         disable Apple AppKit framework [autodetect]
207   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
208   --enable-avisynth        enable reading of AviSynth script files [no]
209   --disable-bzlib          disable bzlib [autodetect]
210   --disable-coreimage      disable Apple CoreImage framework [autodetect]
211   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
212   --enable-frei0r          enable frei0r video filtering [no]
213   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
214                            if openssl, librtmp or gmp is not used [no]
215   --enable-gmp             enable gmp, needed for rtmp(t)e support
216                            if openssl or librtmp is not used [no]
217   --enable-gnutls          enable gnutls, needed for https support
218                            if openssl is not used [no]
219   --disable-iconv          disable iconv [autodetect]
220   --enable-jni             enable JNI support [no]
221   --enable-ladspa          enable LADSPA audio filtering [no]
222   --enable-libass          enable libass subtitles rendering,
223                            needed for subtitles and ass filter [no]
224   --enable-libbluray       enable BluRay reading using libbluray [no]
225   --enable-libbs2b         enable bs2b DSP library [no]
226   --enable-libcaca         enable textual display using libcaca [no]
227   --enable-libcelt         enable CELT decoding via libcelt [no]
228   --enable-libcdio         enable audio CD grabbing with libcdio [no]
229   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
230                            and libraw1394 [no]
231   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
232   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
233   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
234   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
235   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
236   --enable-libgme          enable Game Music Emu via libgme [no]
237   --enable-libgsm          enable GSM de/encoding via libgsm [no]
238   --enable-libiec61883     enable iec61883 via libiec61883 [no]
239   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
240   --enable-libjack         enable JACK audio sound server [no]
241   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
242   --enable-libmodplug      enable ModPlug via libmodplug [no]
243   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
244   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
245   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
246   --enable-libopencv       enable video filtering via libopencv [no]
247   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
248   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
249   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
250   --enable-libopus         enable Opus de/encoding via libopus [no]
251   --enable-libpulse        enable Pulseaudio input via libpulse [no]
252   --enable-librsvg         enable SVG rasterization via librsvg [no]
253   --enable-librubberband   enable rubberband needed for rubberband filter [no]
254   --enable-librtmp         enable RTMP[E] support via librtmp [no]
255   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
256   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
257   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
258   --enable-libsoxr         enable Include libsoxr resampling [no]
259   --enable-libspeex        enable Speex de/encoding via libspeex [no]
260   --enable-libssh          enable SFTP protocol via libssh [no]
261   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
262   --enable-libtheora       enable Theora encoding via libtheora [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   --disable-lzma           disable lzma [autodetect]
287   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
288   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
289   --enable-mediacodec      enable Android MediaCodec support [no]
290   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
291   --enable-openal          enable OpenAL 1.1 capture support [no]
292   --enable-opencl          enable OpenCL code
293   --enable-opengl          enable OpenGL rendering [no]
294   --enable-openssl         enable openssl, needed for https support
295                            if gnutls is not used [no]
296   --disable-sndio          disable sndio support [autodetect]
297   --disable-schannel       disable SChannel SSP, needed for TLS support on
298                            Windows if openssl and gnutls are not used [autodetect]
299   --disable-sdl2           disable sdl2 [autodetect]
300   --disable-securetransport disable Secure Transport, needed for TLS support
301                            on OSX if openssl and gnutls are not used [autodetect]
302   --disable-xlib           disable xlib [autodetect]
303   --disable-zlib           disable zlib [autodetect]
304
305   The following libraries provide various hardware acceleration features:
306   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
307   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
308   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
309   --disable-cuvid          disable Nvidia CUVID support [autodetect]
310   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
311   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
312   --enable-libdrm          enable DRM code (Linux) [no]
313   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
314   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
315   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
316   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
317   --disable-nvenc          disable Nvidia video encoding code [autodetect]
318   --enable-omx             enable OpenMAX IL code [no]
319   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
320   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
321   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
322   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
323   --disable-videotoolbox   disable VideoToolbox code [autodetect]
324
325 Toolchain options:
326   --arch=ARCH              select architecture [$arch]
327   --cpu=CPU                select the minimum required CPU (affects
328                            instruction selection, may crash on older CPUs)
329   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
330   --progs-suffix=SUFFIX    program name suffix []
331   --enable-cross-compile   assume a cross-compiler is used
332   --sysroot=PATH           root of cross-build tree
333   --sysinclude=PATH        location of cross-build system headers
334   --target-os=OS           compiler targets OS [$target_os]
335   --target-exec=CMD        command to run executables on target
336   --target-path=DIR        path to view of build directory on target
337   --target-samples=DIR     path to samples directory on target
338   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
339   --toolchain=NAME         set tool defaults according to NAME
340   --nm=NM                  use nm tool NM [$nm_default]
341   --ar=AR                  use archive tool AR [$ar_default]
342   --as=AS                  use assembler AS [$as_default]
343   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
344   --strip=STRIP            use strip tool STRIP [$strip_default]
345   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
346   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
347   --cc=CC                  use C compiler CC [$cc_default]
348   --cxx=CXX                use C compiler CXX [$cxx_default]
349   --objcc=OCC              use ObjC compiler OCC [$cc_default]
350   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
351   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
352   --ld=LD                  use linker LD [$ld_default]
353   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
354   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
355   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
356   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
357   --host-cc=HOSTCC         use host C compiler HOSTCC
358   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
359   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
360   --host-ld=HOSTLD         use host linker HOSTLD
361   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
362   --host-libs=HLIBS        use libs HLIBS when linking for host
363   --host-os=OS             compiler host OS [$target_os]
364   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
365   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
366   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
367   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
368   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
369   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
370   --extra-libs=ELIBS       add ELIBS [$ELIBS]
371   --extra-version=STRING   version string suffix []
372   --optflags=OPTFLAGS      override optimization-related compiler flags
373   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
374   --build-suffix=SUFFIX    library name suffix []
375   --enable-pic             build position-independent code
376   --enable-thumb           compile for Thumb instruction set
377   --enable-lto             use link-time optimization
378   --env="ENV=override"     override the environment variables
379
380 Advanced options (experts only):
381   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
382   --custom-allocator=NAME  use a supported custom allocator
383   --disable-symver         disable symbol versioning
384   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
385   --disable-safe-bitstream-reader
386                            disable buffer boundary checking in bitreaders
387                            (faster, but may crash)
388   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
389
390 Optimization options (experts only):
391   --disable-asm            disable all assembly optimizations
392   --disable-altivec        disable AltiVec optimizations
393   --disable-vsx            disable VSX optimizations
394   --disable-power8         disable POWER8 optimizations
395   --disable-amd3dnow       disable 3DNow! optimizations
396   --disable-amd3dnowext    disable 3DNow! extended optimizations
397   --disable-mmx            disable MMX optimizations
398   --disable-mmxext         disable MMXEXT optimizations
399   --disable-sse            disable SSE optimizations
400   --disable-sse2           disable SSE2 optimizations
401   --disable-sse3           disable SSE3 optimizations
402   --disable-ssse3          disable SSSE3 optimizations
403   --disable-sse4           disable SSE4 optimizations
404   --disable-sse42          disable SSE4.2 optimizations
405   --disable-avx            disable AVX optimizations
406   --disable-xop            disable XOP optimizations
407   --disable-fma3           disable FMA3 optimizations
408   --disable-fma4           disable FMA4 optimizations
409   --disable-avx2           disable AVX2 optimizations
410   --disable-aesni          disable AESNI optimizations
411   --disable-armv5te        disable armv5te optimizations
412   --disable-armv6          disable armv6 optimizations
413   --disable-armv6t2        disable armv6t2 optimizations
414   --disable-vfp            disable VFP optimizations
415   --disable-neon           disable NEON optimizations
416   --disable-inline-asm     disable use of inline assembly
417   --disable-x86asm         disable use of standalone x86 assembly
418   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
419   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
420   --disable-msa            disable MSA optimizations
421   --disable-mipsfpu        disable floating point MIPS optimizations
422   --disable-mmi            disable Loongson SIMD optimizations
423   --disable-fast-unaligned consider unaligned accesses slow
424
425 Developer options (useful when working on FFmpeg itself):
426   --disable-debug          disable debugging symbols
427   --enable-debug=LEVEL     set the debug level [$debuglevel]
428   --disable-optimizations  disable compiler optimizations
429   --enable-extra-warnings  enable more compiler warnings
430   --disable-stripping      disable stripping of executables and shared libraries
431   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
432                            2 causes a slowdown at runtime.
433   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
434   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
435                            leaks and errors, using the specified valgrind binary.
436                            Cannot be combined with --target-exec
437   --enable-ftrapv          Trap arithmetic overflows
438   --samples=PATH           location of test samples for FATE, if not set use
439                            \$FATE_SAMPLES at make invocation time.
440   --enable-neon-clobber-test check NEON registers for clobbering (should be
441                            used only for debugging purposes)
442   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
443                            should be used only for debugging purposes)
444   --enable-random          randomly enable/disable components
445   --disable-random
446   --enable-random=LIST     randomly enable/disable specific components or
447   --disable-random=LIST    component groups. LIST is a comma-separated list
448                            of NAME[:PROB] entries where NAME is a component
449                            (group) and PROB the probability associated with
450                            NAME (default 0.5).
451   --random-seed=VALUE      seed value for --enable/disable-random
452   --disable-valgrind-backtrace do not print a backtrace under Valgrind
453                            (only applies to --disable-optimizations builds)
454   --enable-osfuzz          Enable building fuzzer tool
455   --libfuzzer=PATH         path to libfuzzer
456   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
457                            in the name) of tests whose result is ignored
458   --enable-linux-perf      enable Linux Performance Monitor API
459
460 NOTE: Object files are built at the place where configure is launched.
461 EOF
462   exit 0
463 }
464
465 quotes='""'
466 if test -t 1 && which tput >/dev/null 2>&1; then
467     ncolors=$(tput colors)
468     if test -n "$ncolors" && test $ncolors -ge 8; then
469         bold_color=$(tput bold)
470         warn_color=$(tput setaf 3)
471         error_color=$(tput setaf 1)
472         reset_color=$(tput sgr0)
473     fi
474     # 72 used instead of 80 since that's the default of pr
475     ncols=$(tput cols)
476 fi
477 : ${ncols:=72}
478
479 log(){
480     echo "$@" >> $logfile
481 }
482
483 log_file(){
484     log BEGIN $1
485     pr -n -t $1 >> $logfile
486     log END $1
487 }
488
489 warn(){
490     log "WARNING: $*"
491     WARNINGS="${WARNINGS}WARNING: $*\n"
492 }
493
494 die(){
495     log "$@"
496     echo "$error_color$bold_color$@$reset_color"
497     cat <<EOF
498
499 If you think configure made a mistake, make sure you are using the latest
500 version from Git.  If the latest version fails, report the problem to the
501 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
502 EOF
503     if disabled logging; then
504         cat <<EOF
505 Rerun configure with logging enabled (do not use --disable-logging), and
506 include the log this produces with your report.
507 EOF
508     else
509         cat <<EOF
510 Include the log file "$logfile" produced by configure as this will help
511 solve the problem.
512 EOF
513     fi
514     exit 1
515 }
516
517 # Avoid locale weirdness, besides we really just want to translate ASCII.
518 toupper(){
519     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
520 }
521
522 tolower(){
523     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
524 }
525
526 c_escape(){
527     echo "$*" | sed 's/["\\]/\\\0/g'
528 }
529
530 sh_quote(){
531     v=$(echo "$1" | sed "s/'/'\\\\''/g")
532     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
533     echo "$v"
534 }
535
536 cleanws(){
537     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
538 }
539
540 filter(){
541     pat=$1
542     shift
543     for v; do
544         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
545     done
546 }
547
548 filter_out(){
549     pat=$1
550     shift
551     for v; do
552         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
553     done
554 }
555
556 map(){
557     m=$1
558     shift
559     for v; do eval $m; done
560 }
561
562 add_suffix(){
563     suffix=$1
564     shift
565     for v; do echo ${v}${suffix}; done
566 }
567
568 set_all(){
569     value=$1
570     shift
571     for var in $*; do
572         eval $var=$value
573     done
574 }
575
576 set_weak(){
577     value=$1
578     shift
579     for var; do
580         eval : \${$var:=$value}
581     done
582 }
583
584 sanitize_var_name(){
585     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
586 }
587
588 set_sanitized(){
589     var=$1
590     shift
591     eval $(sanitize_var_name "$var")='$*'
592 }
593
594 get_sanitized(){
595     eval echo \$$(sanitize_var_name "$1")
596 }
597
598 pushvar(){
599     for pvar in $*; do
600         eval level=\${${pvar}_level:=0}
601         eval ${pvar}_${level}="\$$pvar"
602         eval ${pvar}_level=$(($level+1))
603     done
604 }
605
606 popvar(){
607     for pvar in $*; do
608         eval level=\${${pvar}_level:-0}
609         test $level = 0 && continue
610         eval level=$(($level-1))
611         eval $pvar="\${${pvar}_${level}}"
612         eval ${pvar}_level=$level
613         eval unset ${pvar}_${level}
614     done
615 }
616
617 request(){
618     for var in $*; do
619         eval ${var}_requested=yes
620         eval $var=
621     done
622 }
623
624 enable(){
625     set_all yes $*
626 }
627
628 disable(){
629     set_all no $*
630 }
631
632 enable_weak(){
633     set_weak yes $*
634 }
635
636 disable_weak(){
637     set_weak no $*
638 }
639
640 enable_sanitized(){
641     for var; do
642         enable $(sanitize_var_name $var)
643     done
644 }
645
646 disable_sanitized(){
647     for var; do
648         disable $(sanitize_var_name $var)
649     done
650 }
651
652 do_enable_deep(){
653     for var; do
654         enabled $var && continue
655         eval sel="\$${var}_select"
656         eval sgs="\$${var}_suggest"
657         pushvar var sgs
658         enable_deep $sel
659         popvar sgs
660         enable_deep_weak $sgs
661         popvar var
662     done
663 }
664
665 enable_deep(){
666     do_enable_deep $*
667     enable $*
668 }
669
670 enable_deep_weak(){
671     for var; do
672         disabled $var && continue
673         pushvar var
674         do_enable_deep $var
675         popvar var
676         enable_weak $var
677     done
678 }
679
680 requested(){
681     test "${1#!}" = "$1" && op="=" || op="!="
682     eval test "x\$${1#!}_requested" $op "xyes"
683 }
684
685 enabled(){
686     test "${1#!}" = "$1" && op="=" || op="!="
687     eval test "x\$${1#!}" $op "xyes"
688 }
689
690 disabled(){
691     test "${1#!}" = "$1" && op="=" || op="!="
692     eval test "x\$${1#!}" $op "xno"
693 }
694
695 enabled_all(){
696     for opt; do
697         enabled $opt || return 1
698     done
699 }
700
701 disabled_all(){
702     for opt; do
703         disabled $opt || return 1
704     done
705 }
706
707 enabled_any(){
708     for opt; do
709         enabled $opt && return 0
710     done
711 }
712
713 disabled_any(){
714     for opt; do
715         disabled $opt && return 0
716     done
717     return 1
718 }
719
720 set_default(){
721     for opt; do
722         eval : \${$opt:=\$${opt}_default}
723     done
724 }
725
726 is_in(){
727     value=$1
728     shift
729     for var in $*; do
730         [ $var = $value ] && return 0
731     done
732     return 1
733 }
734
735 check_deps(){
736     for cfg; do
737         enabled ${cfg}_checking && die "Circular dependency for $cfg."
738         disabled ${cfg}_checking && continue
739         enable ${cfg}_checking
740
741         eval dep_all="\$${cfg}_deps"
742         eval dep_any="\$${cfg}_deps_any"
743         eval dep_con="\$${cfg}_conflict"
744         eval dep_sel="\$${cfg}_select"
745         eval dep_sgs="\$${cfg}_suggest"
746         eval dep_ifa="\$${cfg}_if"
747         eval dep_ifn="\$${cfg}_if_any"
748
749         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
750         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
751         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
752
753         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
754         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
755         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
756         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
757         disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
758         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
759
760         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
761
762         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
763             # filter out library deps, these do not belong in extralibs
764             is_in $dep $LIBRARY_LIST && continue
765             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
766         done
767
768         disable ${cfg}_checking
769     done
770 }
771
772 print_config(){
773     pfx=$1
774     files=$2
775     shift 2
776     map 'eval echo "$v \${$v:-no}"' "$@" |
777     awk "BEGIN { split(\"$files\", files) }
778         {
779             c = \"$pfx\" toupper(\$1);
780             v = \$2;
781             sub(/yes/, 1, v);
782             sub(/no/,  0, v);
783             for (f in files) {
784                 file = files[f];
785                 if (file ~ /\\.h\$/) {
786                     printf(\"#define %s %d\\n\", c, v) >>file;
787                 } else if (file ~ /\\.asm\$/) {
788                     printf(\"%%define %s %d\\n\", c, v) >>file;
789                 } else if (file ~ /\\.mak\$/) {
790                     n = -v ? \"\" : \"!\";
791                     printf(\"%s%s=yes\\n\", n, c) >>file;
792                 } else if (file ~ /\\.texi\$/) {
793                     pre = -v ? \"\" : \"@c \";
794                     yesno = \$2;
795                     c2 = tolower(c);
796                     gsub(/_/, \"-\", c2);
797                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
798                 }
799             }
800         }"
801 }
802
803 print_enabled(){
804     suf=$1
805     shift
806     for v; do
807         enabled $v && printf "%s\n" ${v%$suf}
808     done
809 }
810
811 append(){
812     var=$1
813     shift
814     eval "$var=\"\$$var $*\""
815 }
816
817 prepend(){
818     var=$1
819     shift
820     eval "$var=\"$* \$$var\""
821 }
822
823 unique(){
824     var=$1
825     uniq_list=""
826     for tok in $(eval echo \$$var); do
827         uniq_list="$(filter_out $tok $uniq_list) $tok"
828     done
829     eval "$var=\"${uniq_list}\""
830 }
831
832 resolve(){
833     var=$1
834     tmpvar=
835     for entry in $(eval echo \$$var); do
836         tmpvar="$tmpvar $(eval echo \$${entry})"
837     done
838     eval "$var=\"${tmpvar}\""
839 }
840
841 add_cppflags(){
842     append CPPFLAGS "$@"
843 }
844
845 add_cflags(){
846     append CFLAGS $($cflags_filter "$@")
847 }
848
849 add_cflags_headers(){
850     append CFLAGS_HEADERS $($cflags_filter "$@")
851 }
852
853 add_cxxflags(){
854     append CXXFLAGS $($cflags_filter "$@")
855 }
856
857 add_asflags(){
858     append ASFLAGS $($asflags_filter "$@")
859 }
860
861 add_objcflags(){
862     append OBJCFLAGS $($objcflags_filter "$@")
863 }
864
865 add_ldflags(){
866     append LDFLAGS $($ldflags_filter "$@")
867 }
868
869 add_ldexeflags(){
870     append LDEXEFLAGS $($ldflags_filter "$@")
871 }
872
873 add_ldsoflags(){
874     append LDSOFLAGS $($ldflags_filter "$@")
875 }
876
877 add_stripflags(){
878     append ASMSTRIPFLAGS "$@"
879 }
880
881 add_extralibs(){
882     prepend extralibs $($ldflags_filter "$@")
883 }
884
885 add_host_cppflags(){
886     append host_cppflags "$@"
887 }
888
889 add_host_cflags(){
890     append host_cflags $($host_cflags_filter "$@")
891 }
892
893 add_host_ldflags(){
894     append host_ldflags $($host_ldflags_filter "$@")
895 }
896
897 add_compat(){
898     append compat_objs $1
899     shift
900     map 'add_cppflags -D$v' "$@"
901 }
902
903 check_cmd(){
904     log "$@"
905     "$@" >> $logfile 2>&1
906 }
907
908 check_stat(){
909     log check_stat "$@"
910     stat "$1" >> $logfile 2>&1
911 }
912
913 cc_o(){
914     eval printf '%s\\n' $CC_O
915 }
916
917 cc_e(){
918     eval printf '%s\\n' $CC_E
919 }
920
921 check_cc(){
922     log check_cc "$@"
923     cat > $TMPC
924     log_file $TMPC
925     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
926 }
927
928 check_cxx(){
929     log check_cxx "$@"
930     cat > $TMPCPP
931     log_file $TMPCPP
932     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
933 }
934
935 check_objcc(){
936     log check_objcc "$@"
937     cat > $TMPM
938     log_file $TMPM
939     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
940 }
941
942 check_cpp(){
943     log check_cpp "$@"
944     cat > $TMPC
945     log_file $TMPC
946     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
947 }
948
949 as_o(){
950     eval printf '%s\\n' $AS_O
951 }
952
953 check_as(){
954     log check_as "$@"
955     cat > $TMPS
956     log_file $TMPS
957     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
958 }
959
960 check_inline_asm(){
961     log check_inline_asm "$@"
962     name="$1"
963     code="$2"
964     shift 2
965     disable $name
966     check_cc "$@" <<EOF && enable $name
967 void foo(void){ __asm__ volatile($code); }
968 EOF
969 }
970
971 check_inline_asm_flags(){
972     log check_inline_asm_flags "$@"
973     name="$1"
974     code="$2"
975     flags=''
976     shift 2
977     while [ "$1" != "" ]; do
978       append flags $1
979       shift
980     done;
981     disable $name
982     cat > $TMPC <<EOF
983 void foo(void){ __asm__ volatile($code); }
984 EOF
985     log_file $TMPC
986     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
987     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
988 }
989
990 check_insn(){
991     log check_insn "$@"
992     check_inline_asm ${1}_inline "\"$2\""
993     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
994 }
995
996 check_x86asm(){
997     log check_x86asm "$@"
998     echo "$1" > $TMPS
999     log_file $TMPS
1000     shift 1
1001     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
1002 }
1003
1004 ld_o(){
1005     eval printf '%s\\n' $LD_O
1006 }
1007
1008 check_ld(){
1009     log check_ld "$@"
1010     type=$1
1011     shift 1
1012     flags=$(filter_out '-l*|*.so' $@)
1013     libs=$(filter '-l*|*.so' $@)
1014     check_$type $($cflags_filter $flags) || return
1015     flags=$($ldflags_filter $flags)
1016     libs=$($ldflags_filter $libs)
1017     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1018 }
1019
1020 print_include(){
1021     hdr=$1
1022     test "${hdr%.h}" = "${hdr}" &&
1023         echo "#include $hdr"    ||
1024         echo "#include <$hdr>"
1025 }
1026
1027 check_code(){
1028     log check_code "$@"
1029     check=$1
1030     headers=$2
1031     code=$3
1032     shift 3
1033     {
1034         for hdr in $headers; do
1035             print_include $hdr
1036         done
1037         echo "int main(void) { $code; return 0; }"
1038     } | check_$check "$@"
1039 }
1040
1041 check_cppflags(){
1042     log check_cppflags "$@"
1043     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1044 #include <stdlib.h>
1045 EOF
1046 }
1047
1048 test_cflags(){
1049     log test_cflags "$@"
1050     set -- $($cflags_filter "$@")
1051     check_cc "$@" <<EOF
1052 int x;
1053 EOF
1054 }
1055
1056 check_cflags(){
1057     log check_cflags "$@"
1058     test_cflags "$@" && add_cflags "$@"
1059 }
1060
1061 check_cxxflags(){
1062     log check_cxxflags "$@"
1063     set -- $($cflags_filter "$@")
1064     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1065 int x;
1066 EOF
1067 }
1068
1069 test_objcflags(){
1070     log test_objcflags "$@"
1071     set -- $($objcflags_filter "$@")
1072     check_objcc "$@" <<EOF
1073 int x;
1074 EOF
1075 }
1076
1077 check_objcflags(){
1078     log check_objcflags "$@"
1079     test_objcflags "$@" && add_objcflags "$@"
1080 }
1081
1082 test_ldflags(){
1083     log test_ldflags "$@"
1084     set -- $($ldflags_filter "$@")
1085     check_ld "cc" "$@" <<EOF
1086 int main(void){ return 0; }
1087 EOF
1088 }
1089
1090 check_ldflags(){
1091     log check_ldflags "$@"
1092     test_ldflags "$@" && add_ldflags "$@"
1093 }
1094
1095 test_stripflags(){
1096     log test_stripflags "$@"
1097     # call check_cc to get a fresh TMPO
1098     check_cc <<EOF
1099 int main(void) { return 0; }
1100 EOF
1101     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1102 }
1103
1104 check_stripflags(){
1105     log check_stripflags "$@"
1106     test_stripflags "$@" && add_stripflags "$@"
1107 }
1108
1109 check_header(){
1110     log check_header "$@"
1111     headers=$1
1112     shift
1113     disable_sanitized $headers
1114     {
1115         for hdr in $headers; do
1116             print_include $hdr
1117         done
1118         echo "int x;"
1119     } | check_cpp "$@" && enable_sanitized $headers
1120 }
1121
1122 check_header_objcc(){
1123     log check_header_objcc "$@"
1124     rm -f -- "$TMPO"
1125     header=$1
1126     shift
1127     disable_sanitized $header
1128     {
1129        echo "#include <$header>"
1130        echo "int main(void) { return 0; }"
1131     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header
1132 }
1133
1134 check_apple_framework(){
1135     log check_apple_framework "$@"
1136     framework="$1"
1137     name="$(tolower $framework)"
1138     header="${framework}/${framework}.h"
1139     disable $name
1140     check_header_objcc $header &&
1141         enable $name && eval ${name}_extralibs='"-framework $framework"'
1142 }
1143
1144 check_func(){
1145     log check_func "$@"
1146     func=$1
1147     shift
1148     disable $func
1149     check_ld "cc" "$@" <<EOF && enable $func
1150 extern int $func();
1151 int main(void){ $func(); }
1152 EOF
1153 }
1154
1155 check_complexfunc(){
1156     log check_complexfunc "$@"
1157     func=$1
1158     narg=$2
1159     shift 2
1160     test $narg = 2 && args="f, g" || args="f * I"
1161     disable $func
1162     check_ld "cc" "$@" <<EOF && enable $func
1163 #include <complex.h>
1164 #include <math.h>
1165 float foo(complex float f, complex float g) { return $func($args); }
1166 int main(void){ return (int) foo; }
1167 EOF
1168 }
1169
1170 check_mathfunc(){
1171     log check_mathfunc "$@"
1172     func=$1
1173     narg=$2
1174     shift 2
1175     test $narg = 2 && args="f, g" || args="f"
1176     disable $func
1177     check_ld "cc" "$@" <<EOF && enable $func
1178 #include <math.h>
1179 float foo(float f, float g) { return $func($args); }
1180 int main(void){ return (int) foo; }
1181 EOF
1182 }
1183
1184 check_func_headers(){
1185     log check_func_headers "$@"
1186     headers=$1
1187     funcs=$2
1188     shift 2
1189     {
1190         for hdr in $headers; do
1191             print_include $hdr
1192         done
1193         echo "#include <stdint.h>"
1194         for func in $funcs; do
1195             echo "long check_$func(void) { return (long) $func; }"
1196         done
1197         echo "int main(void) { int ret = 0;"
1198         # LTO could optimize out the test functions without this
1199         for func in $funcs; do
1200             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1201         done
1202         echo "return ret; }"
1203     } | check_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1204 }
1205
1206 check_class_headers_cpp(){
1207     log check_class_headers_cpp "$@"
1208     headers=$1
1209     classes=$2
1210     shift 2
1211     {
1212         for hdr in $headers; do
1213             echo "#include <$hdr>"
1214         done
1215         echo "int main(void) { "
1216         i=1
1217         for class in $classes; do
1218             echo "$class obj$i;"
1219             i=$(expr $i + 1)
1220         done
1221         echo "return 0; }"
1222     } | check_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1223 }
1224
1225 check_cpp_condition(){
1226     log check_cpp_condition "$@"
1227     header=$1
1228     condition=$2
1229     shift 2
1230     check_cpp "$@" <<EOF
1231 #include <$header>
1232 #if !($condition)
1233 #error "unsatisfied condition: $condition"
1234 #endif
1235 EOF
1236 }
1237
1238 test_cflags_cc(){
1239     log test_cflags_cc "$@"
1240     flags=$1
1241     header=$2
1242     condition=$3
1243     shift 3
1244     set -- $($cflags_filter "$flags")
1245     check_cc "$@" <<EOF
1246 #include <$header>
1247 #if !($condition)
1248 #error "unsatisfied condition: $condition"
1249 #endif
1250 EOF
1251 }
1252
1253 check_lib(){
1254     log check_lib "$@"
1255     name="$1"
1256     headers="$2"
1257     funcs="$3"
1258     shift 3
1259     disable $name
1260     check_func_headers "$headers" "$funcs" "$@" &&
1261         enable $name && eval ${name}_extralibs="\$@"
1262 }
1263
1264 check_lib_cpp(){
1265     log check_lib_cpp "$@"
1266     name="$1"
1267     headers="$2"
1268     classes="$3"
1269     shift 3
1270     disable $name
1271     check_class_headers_cpp "$headers" "$classes" "$@" &&
1272         enable $name && eval ${name}_extralibs="\$@"
1273 }
1274
1275 test_pkg_config(){
1276     log test_pkg_config "$@"
1277     name="$1"
1278     pkg_version="$2"
1279     pkg="${2%% *}"
1280     headers="$3"
1281     funcs="$4"
1282     shift 4
1283     disable $name
1284     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1285     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1286     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1287     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1288         enable $name &&
1289         set_sanitized "${name}_cflags"    $pkg_cflags &&
1290         set_sanitized "${name}_extralibs" $pkg_libs
1291 }
1292
1293 check_pkg_config(){
1294     log check_pkg_config "$@"
1295     name="$1"
1296     test_pkg_config "$@" &&
1297         eval add_cflags \$${name}_cflags
1298 }
1299
1300 check_exec(){
1301     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1302 }
1303
1304 check_exec_crash(){
1305     log check_exec_crash "$@"
1306     code=$(cat)
1307
1308     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1309     # are safe but may not be available everywhere.  Thus we use
1310     # raise(SIGTERM) instead.  The check is run in a subshell so we
1311     # can redirect the "Terminated" message from the shell.  SIGBUS
1312     # is not defined by standard C so it is used conditionally.
1313
1314     (check_exec "$@") >> $logfile 2>&1 <<EOF
1315 #include <signal.h>
1316 static void sighandler(int sig){
1317     raise(SIGTERM);
1318 }
1319 int foo(void){
1320     $code
1321 }
1322 int (*func_ptr)(void) = foo;
1323 int main(void){
1324     signal(SIGILL, sighandler);
1325     signal(SIGFPE, sighandler);
1326     signal(SIGSEGV, sighandler);
1327 #ifdef SIGBUS
1328     signal(SIGBUS, sighandler);
1329 #endif
1330     return func_ptr();
1331 }
1332 EOF
1333 }
1334
1335 check_type(){
1336     log check_type "$@"
1337     headers=$1
1338     type=$2
1339     shift 2
1340     disable_sanitized "$type"
1341     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1342 }
1343
1344 check_struct(){
1345     log check_struct "$@"
1346     headers=$1
1347     struct=$2
1348     member=$3
1349     shift 3
1350     disable_sanitized "${struct}_${member}"
1351     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1352         enable_sanitized "${struct}_${member}"
1353 }
1354
1355 check_builtin(){
1356     log check_builtin "$@"
1357     name=$1
1358     headers=$2
1359     builtin=$3
1360     shift 3
1361     disable "$name"
1362     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1363 }
1364
1365 check_compile_assert(){
1366     log check_compile_assert "$@"
1367     name=$1
1368     headers=$2
1369     condition=$3
1370     shift 3
1371     disable "$name"
1372     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1373 }
1374
1375 require(){
1376     log require "$@"
1377     name_version="$1"
1378     name="${1%% *}"
1379     headers="$2"
1380     func="$3"
1381     shift 3
1382     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1383 }
1384
1385 require_cpp(){
1386     name="$1"
1387     headers="$2"
1388     classes="$3"
1389     shift 3
1390     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1391 }
1392
1393 require_header(){
1394     log require_header "$@"
1395     headers="$1"
1396     shift
1397     check_header "$headers" "$@" || die "ERROR: $headers not found"
1398 }
1399
1400 require_cpp_condition(){
1401     log require_cpp_condition "$@"
1402     header="$1"
1403     condition="$2"
1404     shift 2
1405     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1406 }
1407
1408 require_pkg_config(){
1409     log require_pkg_config "$@"
1410     pkg_version="$2"
1411     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1412 }
1413
1414 hostcc_e(){
1415     eval printf '%s\\n' $HOSTCC_E
1416 }
1417
1418 hostcc_o(){
1419     eval printf '%s\\n' $HOSTCC_O
1420 }
1421
1422 check_host_cc(){
1423     log check_host_cc "$@"
1424     cat > $TMPC
1425     log_file $TMPC
1426     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1427 }
1428
1429 check_host_cpp(){
1430     log check_host_cpp "$@"
1431     cat > $TMPC
1432     log_file $TMPC
1433     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1434 }
1435
1436 check_host_cppflags(){
1437     log check_host_cppflags "$@"
1438     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1439 #include <stdlib.h>
1440 EOF
1441 }
1442
1443 check_host_cflags(){
1444     log check_host_cflags "$@"
1445     set -- $($host_cflags_filter "$@")
1446     check_host_cc "$@" <<EOF && append host_cflags "$@"
1447 int x;
1448 EOF
1449 }
1450
1451 check_host_cpp_condition(){
1452     log check_host_cpp_condition "$@"
1453     header=$1
1454     condition=$2
1455     shift 2
1456     check_host_cpp "$@" <<EOF
1457 #include <$header>
1458 #if !($condition)
1459 #error "unsatisfied condition: $condition"
1460 #endif
1461 EOF
1462 }
1463
1464 cp_if_changed(){
1465     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1466     mkdir -p "$(dirname $2)"
1467     cp -f "$1" "$2"
1468 }
1469
1470 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1471 # system-dependent things.
1472
1473 AVCODEC_COMPONENTS="
1474     bsfs
1475     decoders
1476     encoders
1477     hwaccels
1478     parsers
1479 "
1480
1481 AVDEVICE_COMPONENTS="
1482     indevs
1483     outdevs
1484 "
1485
1486 AVFILTER_COMPONENTS="
1487     filters
1488 "
1489
1490 AVFORMAT_COMPONENTS="
1491     demuxers
1492     muxers
1493     protocols
1494 "
1495
1496 COMPONENT_LIST="
1497     $AVCODEC_COMPONENTS
1498     $AVDEVICE_COMPONENTS
1499     $AVFILTER_COMPONENTS
1500     $AVFORMAT_COMPONENTS
1501 "
1502
1503 EXAMPLE_LIST="
1504     avio_dir_cmd_example
1505     avio_reading_example
1506     decode_audio_example
1507     decode_video_example
1508     demuxing_decoding_example
1509     encode_audio_example
1510     encode_video_example
1511     extract_mvs_example
1512     filter_audio_example
1513     filtering_audio_example
1514     filtering_video_example
1515     http_multiclient_example
1516     hw_decode_example
1517     metadata_example
1518     muxing_example
1519     qsvdec_example
1520     remuxing_example
1521     resampling_audio_example
1522     scaling_video_example
1523     transcode_aac_example
1524     transcoding_example
1525 "
1526
1527 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1528     alsa
1529     appkit
1530     avfoundation
1531     bzlib
1532     coreimage
1533     iconv
1534     libxcb
1535     libxcb_shm
1536     libxcb_shape
1537     libxcb_xfixes
1538     lzma
1539     schannel
1540     sdl2
1541     securetransport
1542     sndio
1543     xlib
1544     zlib
1545 "
1546
1547 EXTERNAL_LIBRARY_GPL_LIST="
1548     avisynth
1549     frei0r
1550     libcdio
1551     librubberband
1552     libvidstab
1553     libx264
1554     libx265
1555     libxavs
1556     libxvid
1557 "
1558
1559 EXTERNAL_LIBRARY_NONFREE_LIST="
1560     decklink
1561     libndi_newtek
1562     libfdk_aac
1563     openssl
1564 "
1565
1566 EXTERNAL_LIBRARY_VERSION3_LIST="
1567     gmp
1568     libopencore_amrnb
1569     libopencore_amrwb
1570     libvmaf
1571     libvo_amrwbenc
1572     rkmpp
1573 "
1574
1575 EXTERNAL_LIBRARY_GPLV3_LIST="
1576     libsmbclient
1577 "
1578
1579 EXTERNAL_LIBRARY_LIST="
1580     $EXTERNAL_LIBRARY_GPL_LIST
1581     $EXTERNAL_LIBRARY_NONFREE_LIST
1582     $EXTERNAL_LIBRARY_VERSION3_LIST
1583     $EXTERNAL_LIBRARY_GPLV3_LIST
1584     chromaprint
1585     gcrypt
1586     gnutls
1587     jni
1588     ladspa
1589     libass
1590     libbluray
1591     libbs2b
1592     libcaca
1593     libcelt
1594     libdc1394
1595     libdrm
1596     libflite
1597     libfontconfig
1598     libfreetype
1599     libfribidi
1600     libgme
1601     libgsm
1602     libiec61883
1603     libilbc
1604     libjack
1605     libkvazaar
1606     libmodplug
1607     libmp3lame
1608     libmysofa
1609     libopencv
1610     libopenh264
1611     libopenjpeg
1612     libopenmpt
1613     libopus
1614     libpulse
1615     librsvg
1616     librtmp
1617     libshine
1618     libsmbclient
1619     libsnappy
1620     libsoxr
1621     libspeex
1622     libssh
1623     libtesseract
1624     libtheora
1625     libtwolame
1626     libv4l2
1627     libvorbis
1628     libvpx
1629     libwavpack
1630     libwebp
1631     libxml2
1632     libzimg
1633     libzmq
1634     libzvbi
1635     mediacodec
1636     openal
1637     opencl
1638     opengl
1639 "
1640
1641 HWACCEL_AUTODETECT_LIBRARY_LIST="
1642     audiotoolbox
1643     crystalhd
1644     cuda
1645     cuvid
1646     d3d11va
1647     dxva2
1648     nvdec
1649     nvenc
1650     vaapi
1651     vdpau
1652     videotoolbox
1653     v4l2_m2m
1654     xvmc
1655 "
1656
1657 # catchall list of things that require external libs to link
1658 EXTRALIBS_LIST="
1659     cpu_init
1660     cws2fws
1661 "
1662
1663 HWACCEL_LIBRARY_NONFREE_LIST="
1664     cuda_sdk
1665     libnpp
1666 "
1667
1668 HWACCEL_LIBRARY_LIST="
1669     $HWACCEL_LIBRARY_NONFREE_LIST
1670     libmfx
1671     mmal
1672     omx
1673 "
1674
1675 DOCUMENT_LIST="
1676     doc
1677     htmlpages
1678     manpages
1679     podpages
1680     txtpages
1681 "
1682
1683 FEATURE_LIST="
1684     ftrapv
1685     gray
1686     hardcoded_tables
1687     omx_rpi
1688     runtime_cpudetect
1689     safe_bitstream_reader
1690     shared
1691     small
1692     static
1693     swscale_alpha
1694 "
1695
1696 LIBRARY_LIST="
1697     avcodec
1698     avdevice
1699     avfilter
1700     avformat
1701     avresample
1702     avutil
1703     postproc
1704     swresample
1705     swscale
1706 "
1707
1708 LICENSE_LIST="
1709     gpl
1710     nonfree
1711     version3
1712 "
1713
1714 PROGRAM_LIST="
1715     ffplay
1716     ffprobe
1717     ffserver
1718     ffmpeg
1719 "
1720
1721 SUBSYSTEM_LIST="
1722     dct
1723     dwt
1724     error_resilience
1725     faan
1726     fast_unaligned
1727     fft
1728     lsp
1729     lzo
1730     mdct
1731     pixelutils
1732     network
1733     rdft
1734 "
1735
1736 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1737 CONFIG_LIST="
1738     $DOCUMENT_LIST
1739     $EXAMPLE_LIST
1740     $EXTERNAL_LIBRARY_LIST
1741     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1742     $HWACCEL_LIBRARY_LIST
1743     $HWACCEL_AUTODETECT_LIBRARY_LIST
1744     $FEATURE_LIST
1745     $LICENSE_LIST
1746     $LIBRARY_LIST
1747     $PROGRAM_LIST
1748     $SUBSYSTEM_LIST
1749     autodetect
1750     fontconfig
1751     linux_perf
1752     memory_poisoning
1753     neon_clobber_test
1754     ossfuzz
1755     pic
1756     thumb
1757     valgrind_backtrace
1758     xmm_clobber_test
1759     $COMPONENT_LIST
1760 "
1761
1762 THREADS_LIST="
1763     pthreads
1764     os2threads
1765     w32threads
1766 "
1767
1768 ATOMICS_LIST="
1769     atomics_gcc
1770     atomics_suncc
1771     atomics_win32
1772 "
1773
1774 AUTODETECT_LIBS="
1775     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1776     $HWACCEL_AUTODETECT_LIBRARY_LIST
1777     $THREADS_LIST
1778 "
1779
1780 ARCH_LIST="
1781     aarch64
1782     alpha
1783     arm
1784     avr32
1785     avr32_ap
1786     avr32_uc
1787     bfin
1788     ia64
1789     m68k
1790     mips
1791     mips64
1792     parisc
1793     ppc
1794     ppc64
1795     s390
1796     sh4
1797     sparc
1798     sparc64
1799     tilegx
1800     tilepro
1801     tomi
1802     x86
1803     x86_32
1804     x86_64
1805 "
1806
1807 ARCH_EXT_LIST_ARM="
1808     armv5te
1809     armv6
1810     armv6t2
1811     armv8
1812     neon
1813     vfp
1814     vfpv3
1815     setend
1816 "
1817
1818 ARCH_EXT_LIST_MIPS="
1819     mipsfpu
1820     mips32r2
1821     mips32r5
1822     mips64r2
1823     mips32r6
1824     mips64r6
1825     mipsdsp
1826     mipsdspr2
1827     msa
1828 "
1829
1830 ARCH_EXT_LIST_LOONGSON="
1831     loongson2
1832     loongson3
1833     mmi
1834 "
1835
1836 ARCH_EXT_LIST_X86_SIMD="
1837     aesni
1838     amd3dnow
1839     amd3dnowext
1840     avx
1841     avx2
1842     fma3
1843     fma4
1844     mmx
1845     mmxext
1846     sse
1847     sse2
1848     sse3
1849     sse4
1850     sse42
1851     ssse3
1852     xop
1853 "
1854
1855 ARCH_EXT_LIST_PPC="
1856     altivec
1857     dcbzl
1858     ldbrx
1859     power8
1860     ppc4xx
1861     vsx
1862 "
1863
1864 ARCH_EXT_LIST_X86="
1865     $ARCH_EXT_LIST_X86_SIMD
1866     cpunop
1867     i686
1868 "
1869
1870 ARCH_EXT_LIST="
1871     $ARCH_EXT_LIST_ARM
1872     $ARCH_EXT_LIST_PPC
1873     $ARCH_EXT_LIST_X86
1874     $ARCH_EXT_LIST_MIPS
1875     $ARCH_EXT_LIST_LOONGSON
1876 "
1877
1878 ARCH_FEATURES="
1879     aligned_stack
1880     fast_64bit
1881     fast_clz
1882     fast_cmov
1883     local_aligned
1884     simd_align_16
1885     simd_align_32
1886 "
1887
1888 BUILTIN_LIST="
1889     atomic_cas_ptr
1890     machine_rw_barrier
1891     MemoryBarrier
1892     mm_empty
1893     rdtsc
1894     sarestart
1895     sem_timedwait
1896     sync_val_compare_and_swap
1897 "
1898 HAVE_LIST_CMDLINE="
1899     inline_asm
1900     symver
1901     x86asm
1902 "
1903
1904 HAVE_LIST_PUB="
1905     bigendian
1906     fast_unaligned
1907 "
1908
1909 HEADERS_LIST="
1910     arpa_inet_h
1911     asm_types_h
1912     cdio_paranoia_h
1913     cdio_paranoia_paranoia_h
1914     cuda_h
1915     dispatch_dispatch_h
1916     dev_bktr_ioctl_bt848_h
1917     dev_bktr_ioctl_meteor_h
1918     dev_ic_bt8xx_h
1919     dev_video_bktr_ioctl_bt848_h
1920     dev_video_meteor_ioctl_meteor_h
1921     direct_h
1922     dirent_h
1923     dxgidebug_h
1924     dxva_h
1925     ES2_gl_h
1926     gsm_h
1927     io_h
1928     machine_ioctl_bt848_h
1929     machine_ioctl_meteor_h
1930     malloc_h
1931     opencv2_core_core_c_h
1932     OpenGL_gl3_h
1933     poll_h
1934     sys_param_h
1935     sys_resource_h
1936     sys_select_h
1937     sys_soundcard_h
1938     sys_time_h
1939     sys_un_h
1940     sys_videoio_h
1941     termios_h
1942     udplite_h
1943     unistd_h
1944     valgrind_valgrind_h
1945     windows_h
1946     winsock2_h
1947 "
1948
1949 INTRINSICS_LIST="
1950     intrinsics_neon
1951 "
1952
1953 COMPLEX_FUNCS="
1954     cabs
1955     cexp
1956 "
1957
1958 MATH_FUNCS="
1959     atanf
1960     atan2f
1961     cbrt
1962     cbrtf
1963     copysign
1964     cosf
1965     erf
1966     exp2
1967     exp2f
1968     expf
1969     hypot
1970     isfinite
1971     isinf
1972     isnan
1973     ldexpf
1974     llrint
1975     llrintf
1976     log2
1977     log2f
1978     log10f
1979     lrint
1980     lrintf
1981     powf
1982     rint
1983     round
1984     roundf
1985     sinf
1986     trunc
1987     truncf
1988 "
1989
1990 SYSTEM_FEATURES="
1991     atomics_native
1992     dos_paths
1993     libc_msvcrt
1994     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1995     section_data_rel_ro
1996     threads
1997     uwp
1998     winrt
1999 "
2000
2001 SYSTEM_FUNCS="
2002     access
2003     aligned_malloc
2004     arc4random
2005     clock_gettime
2006     closesocket
2007     CommandLineToArgvW
2008     fcntl
2009     getaddrinfo
2010     gethrtime
2011     getopt
2012     GetProcessAffinityMask
2013     GetProcessMemoryInfo
2014     GetProcessTimes
2015     getrusage
2016     GetSystemTimeAsFileTime
2017     gettimeofday
2018     glob
2019     glXGetProcAddress
2020     gmtime_r
2021     inet_aton
2022     isatty
2023     kbhit
2024     localtime_r
2025     lstat
2026     lzo1x_999_compress
2027     mach_absolute_time
2028     MapViewOfFile
2029     memalign
2030     mkstemp
2031     mmap
2032     mprotect
2033     nanosleep
2034     PeekNamedPipe
2035     posix_memalign
2036     pthread_cancel
2037     sched_getaffinity
2038     SecItemImport
2039     SetConsoleTextAttribute
2040     SetConsoleCtrlHandler
2041     setmode
2042     setrlimit
2043     Sleep
2044     strerror_r
2045     sysconf
2046     sysctl
2047     usleep
2048     UTGetOSTypeFromString
2049     VirtualAlloc
2050     wglGetProcAddress
2051 "
2052
2053 SYSTEM_LIBRARIES="
2054     vaapi_drm
2055     vaapi_x11
2056     vdpau_x11
2057     wincrypt
2058 "
2059
2060 TOOLCHAIN_FEATURES="
2061     as_arch_directive
2062     as_fpu_directive
2063     as_func
2064     as_object_arch
2065     asm_mod_q
2066     blocks_extension
2067     ebp_available
2068     ebx_available
2069     gnu_as
2070     gnu_windres
2071     ibm_asm
2072     inline_asm_direct_symbol_refs
2073     inline_asm_labels
2074     inline_asm_nonlocal_labels
2075     pragma_deprecated
2076     rsync_contimeout
2077     symver_asm_label
2078     symver_gnu_asm
2079     vfp_args
2080     xform_asm
2081     xmm_clobbers
2082 "
2083
2084 TYPES_LIST="
2085     CONDITION_VARIABLE_Ptr
2086     kCMVideoCodecType_HEVC
2087     socklen_t
2088     struct_addrinfo
2089     struct_group_source_req
2090     struct_ip_mreq_source
2091     struct_ipv6_mreq
2092     struct_msghdr_msg_flags
2093     struct_pollfd
2094     struct_rusage_ru_maxrss
2095     struct_sctp_event_subscribe
2096     struct_sockaddr_in6
2097     struct_sockaddr_sa_len
2098     struct_sockaddr_storage
2099     struct_stat_st_mtim_tv_nsec
2100     struct_v4l2_frmivalenum_discrete
2101 "
2102
2103 HAVE_LIST="
2104     $ARCH_EXT_LIST
2105     $(add_suffix _external $ARCH_EXT_LIST)
2106     $(add_suffix _inline   $ARCH_EXT_LIST)
2107     $ARCH_FEATURES
2108     $ATOMICS_LIST
2109     $BUILTIN_LIST
2110     $COMPLEX_FUNCS
2111     $HAVE_LIST_CMDLINE
2112     $HAVE_LIST_PUB
2113     $HEADERS_LIST
2114     $INTRINSICS_LIST
2115     $MATH_FUNCS
2116     $SYSTEM_FEATURES
2117     $SYSTEM_FUNCS
2118     $SYSTEM_LIBRARIES
2119     $THREADS_LIST
2120     $TOOLCHAIN_FEATURES
2121     $TYPES_LIST
2122     makeinfo
2123     makeinfo_html
2124     perl
2125     pod2man
2126     texi2html
2127 "
2128
2129 # options emitted with CONFIG_ prefix but not available on the command line
2130 CONFIG_EXTRA="
2131     aandcttables
2132     ac3dsp
2133     adts_header
2134     audio_frame_queue
2135     audiodsp
2136     blockdsp
2137     bswapdsp
2138     cabac
2139     cbs
2140     cbs_h264
2141     cbs_h265
2142     cbs_mpeg2
2143     dirac_parse
2144     dvprofile
2145     exif
2146     faandct
2147     faanidct
2148     fdctdsp
2149     flacdsp
2150     fmtconvert
2151     frame_thread_encoder
2152     g722dsp
2153     golomb
2154     gplv3
2155     h263dsp
2156     h264chroma
2157     h264dsp
2158     h264parse
2159     h264pred
2160     h264qpel
2161     hevcparse
2162     hpeldsp
2163     huffman
2164     huffyuvdsp
2165     huffyuvencdsp
2166     idctdsp
2167     iirfilter
2168     mdct15
2169     intrax8
2170     iso_media
2171     ividsp
2172     jpegtables
2173     lgplv3
2174     libx262
2175     llauddsp
2176     llviddsp
2177     llvidencdsp
2178     lpc
2179     lzf
2180     me_cmp
2181     mpeg_er
2182     mpegaudio
2183     mpegaudiodsp
2184     mpegaudioheader
2185     mpegvideo
2186     mpegvideoenc
2187     mss34dsp
2188     pixblockdsp
2189     qpeldsp
2190     qsv
2191     qsvdec
2192     qsvenc
2193     qsvvpp
2194     rangecoder
2195     riffdec
2196     riffenc
2197     rtpdec
2198     rtpenc_chain
2199     rv34dsp
2200     sinewin
2201     snappy
2202     srtp
2203     startcode
2204     texturedsp
2205     texturedspenc
2206     tpeldsp
2207     vaapi_1
2208     vaapi_encode
2209     vc1dsp
2210     videodsp
2211     vp3dsp
2212     vp56dsp
2213     vp8dsp
2214     wma_freqs
2215     wmv2dsp
2216 "
2217
2218 CMDLINE_SELECT="
2219     $ARCH_EXT_LIST
2220     $CONFIG_LIST
2221     $HAVE_LIST_CMDLINE
2222     $THREADS_LIST
2223     asm
2224     cross_compile
2225     debug
2226     extra_warnings
2227     logging
2228     lto
2229     optimizations
2230     rpath
2231     stripping
2232 "
2233
2234 PATHS_LIST="
2235     bindir
2236     datadir
2237     docdir
2238     incdir
2239     libdir
2240     mandir
2241     pkgconfigdir
2242     prefix
2243     shlibdir
2244     install_name_dir
2245 "
2246
2247 CMDLINE_SET="
2248     $PATHS_LIST
2249     ar
2250     arch
2251     as
2252     assert_level
2253     build_suffix
2254     cc
2255     objcc
2256     cpu
2257     cross_prefix
2258     custom_allocator
2259     cxx
2260     dep_cc
2261     doxygen
2262     env
2263     extra_version
2264     gas
2265     host_cc
2266     host_cflags
2267     host_extralibs
2268     host_ld
2269     host_ldflags
2270     host_os
2271     ignore_tests
2272     install
2273     ld
2274     ln_s
2275     logfile
2276     malloc_prefix
2277     nm
2278     optflags
2279     nvccflags
2280     pkg_config
2281     pkg_config_flags
2282     progs_suffix
2283     random_seed
2284     ranlib
2285     samples
2286     strip
2287     sws_max_filter_size
2288     sysinclude
2289     sysroot
2290     target_exec
2291     target_os
2292     target_path
2293     target_samples
2294     tempprefix
2295     toolchain
2296     valgrind
2297     x86asmexe
2298 "
2299
2300 CMDLINE_APPEND="
2301     extra_cflags
2302     extra_cxxflags
2303     extra_objcflags
2304     host_cppflags
2305 "
2306
2307 # code dependency declarations
2308
2309 # architecture extensions
2310
2311 armv5te_deps="arm"
2312 armv6_deps="arm"
2313 armv6t2_deps="arm"
2314 armv8_deps="aarch64"
2315 neon_deps_any="aarch64 arm"
2316 intrinsics_neon_deps="neon"
2317 vfp_deps_any="aarch64 arm"
2318 vfpv3_deps="vfp"
2319 setend_deps="arm"
2320
2321 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2322
2323 altivec_deps="ppc"
2324 dcbzl_deps="ppc"
2325 ldbrx_deps="ppc"
2326 ppc4xx_deps="ppc"
2327 vsx_deps="altivec"
2328 power8_deps="vsx"
2329
2330 loongson2_deps="mips"
2331 loongson3_deps="mips"
2332 mips32r2_deps="mips"
2333 mips32r5_deps="mips"
2334 mips32r6_deps="mips"
2335 mips64r2_deps="mips"
2336 mips64r6_deps="mips"
2337 mipsfpu_deps="mips"
2338 mipsdsp_deps="mips"
2339 mipsdspr2_deps="mips"
2340 mmi_deps="mips"
2341 msa_deps="mipsfpu"
2342
2343 cpunop_deps="i686"
2344 x86_64_select="i686"
2345 x86_64_suggest="fast_cmov"
2346
2347 amd3dnow_deps="mmx"
2348 amd3dnowext_deps="amd3dnow"
2349 i686_deps="x86"
2350 mmx_deps="x86"
2351 mmxext_deps="mmx"
2352 sse_deps="mmxext"
2353 sse2_deps="sse"
2354 sse3_deps="sse2"
2355 ssse3_deps="sse3"
2356 sse4_deps="ssse3"
2357 sse42_deps="sse4"
2358 aesni_deps="sse42"
2359 avx_deps="sse42"
2360 xop_deps="avx"
2361 fma3_deps="avx"
2362 fma4_deps="avx"
2363 avx2_deps="avx"
2364
2365 mmx_external_deps="x86asm"
2366 mmx_inline_deps="inline_asm x86"
2367 mmx_suggest="mmx_external mmx_inline"
2368
2369 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2370     eval dep=\$${ext}_deps
2371     eval ${ext}_external_deps='"${dep}_external"'
2372     eval ${ext}_inline_deps='"${dep}_inline"'
2373     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2374 done
2375
2376 aligned_stack_if_any="aarch64 ppc x86"
2377 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2378 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2379 fast_unaligned_if_any="aarch64 ppc x86"
2380 simd_align_16_if_any="altivec neon sse"
2381 simd_align_32_if_any="avx"
2382
2383 # system capabilities
2384 symver_if_any="symver_asm_label symver_gnu_asm"
2385 valgrind_backtrace_conflict="optimizations"
2386 valgrind_backtrace_deps="valgrind_valgrind_h"
2387
2388 # threading support
2389 atomics_gcc_if="sync_val_compare_and_swap"
2390 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2391 atomics_win32_if="MemoryBarrier"
2392 atomics_native_if_any="$ATOMICS_LIST"
2393 w32threads_deps="atomics_native"
2394 threads_if_any="$THREADS_LIST"
2395
2396 # subsystems
2397 cbs_h264_select="cbs golomb"
2398 cbs_h265_select="cbs golomb"
2399 cbs_mpeg2_select="cbs"
2400 dct_select="rdft"
2401 dirac_parse_select="golomb"
2402 error_resilience_select="me_cmp"
2403 faandct_deps="faan"
2404 faandct_select="fdctdsp"
2405 faanidct_deps="faan"
2406 faanidct_select="idctdsp"
2407 h264dsp_select="startcode"
2408 hevcparse_select="golomb"
2409 frame_thread_encoder_deps="encoders threads"
2410 intrax8_select="blockdsp idctdsp"
2411 mdct_select="fft"
2412 mdct15_select="fft"
2413 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2414 mpeg_er_select="error_resilience"
2415 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2416 mpegaudiodsp_select="dct"
2417 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2418 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2419 vc1dsp_select="h264chroma qpeldsp startcode"
2420 rdft_select="fft"
2421
2422 # decoders / encoders
2423 aac_decoder_select="adts_header mdct15 mdct sinewin"
2424 aac_fixed_decoder_select="mdct sinewin"
2425 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2426 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2427 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2428 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2429 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2430 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2431 adpcm_g722_decoder_select="g722dsp"
2432 adpcm_g722_encoder_select="g722dsp"
2433 aic_decoder_select="golomb idctdsp"
2434 alac_encoder_select="lpc"
2435 als_decoder_select="bswapdsp"
2436 amrnb_decoder_select="lsp"
2437 amrwb_decoder_select="lsp"
2438 amv_decoder_select="sp5x_decoder exif"
2439 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2440 ape_decoder_select="bswapdsp llauddsp"
2441 apng_decoder_select="zlib"
2442 apng_encoder_select="llvidencdsp zlib"
2443 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2444 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2445 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2446 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2447 atrac1_decoder_select="mdct sinewin"
2448 atrac3_decoder_select="mdct"
2449 atrac3p_decoder_select="mdct sinewin"
2450 avrn_decoder_select="exif jpegtables"
2451 bink_decoder_select="blockdsp hpeldsp"
2452 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2453 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2454 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2455 clearvideo_decoder_select="idctdsp"
2456 cllc_decoder_select="bswapdsp"
2457 comfortnoise_encoder_select="lpc"
2458 cook_decoder_select="audiodsp mdct sinewin"
2459 cscd_decoder_select="lzo"
2460 cscd_decoder_suggest="zlib"
2461 dca_decoder_select="mdct"
2462 dds_decoder_select="texturedsp"
2463 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2464 dnxhd_decoder_select="blockdsp idctdsp"
2465 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2466 dolby_e_decoder_select="mdct"
2467 dvvideo_decoder_select="dvprofile idctdsp"
2468 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2469 dxa_decoder_select="zlib"
2470 dxv_decoder_select="lzf texturedsp"
2471 eac3_decoder_select="ac3_decoder"
2472 eac3_encoder_select="ac3_encoder"
2473 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2474 eatgq_decoder_select="aandcttables"
2475 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2476 exr_decoder_select="zlib"
2477 ffv1_decoder_select="rangecoder"
2478 ffv1_encoder_select="rangecoder"
2479 ffvhuff_decoder_select="huffyuv_decoder"
2480 ffvhuff_encoder_select="huffyuv_encoder"
2481 fic_decoder_select="golomb"
2482 flac_decoder_select="flacdsp"
2483 flac_encoder_select="bswapdsp flacdsp lpc"
2484 flashsv2_decoder_select="zlib"
2485 flashsv2_encoder_select="zlib"
2486 flashsv_decoder_select="zlib"
2487 flashsv_encoder_select="zlib"
2488 flv_decoder_select="h263_decoder"
2489 flv_encoder_select="h263_encoder"
2490 fourxm_decoder_select="blockdsp bswapdsp"
2491 fraps_decoder_select="bswapdsp huffman"
2492 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2493 g729_decoder_select="audiodsp"
2494 h261_decoder_select="mpegvideo"
2495 h261_encoder_select="aandcttables mpegvideoenc"
2496 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2497 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2498 h263i_decoder_select="h263_decoder"
2499 h263p_decoder_select="h263_decoder"
2500 h263p_encoder_select="h263_encoder"
2501 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2502 h264_decoder_suggest="error_resilience"
2503 hap_decoder_select="snappy texturedsp"
2504 hap_encoder_deps="libsnappy"
2505 hap_encoder_select="texturedspenc"
2506 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2507 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2508 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2509 iac_decoder_select="imc_decoder"
2510 imc_decoder_select="bswapdsp fft mdct sinewin"
2511 indeo3_decoder_select="hpeldsp"
2512 indeo4_decoder_select="ividsp"
2513 indeo5_decoder_select="ividsp"
2514 interplay_video_decoder_select="hpeldsp"
2515 jpegls_decoder_select="mjpeg_decoder"
2516 jv_decoder_select="blockdsp"
2517 lagarith_decoder_select="llviddsp"
2518 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2519 magicyuv_decoder_select="llviddsp"
2520 magicyuv_encoder_select="llvidencdsp"
2521 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2522 metasound_decoder_select="lsp mdct sinewin"
2523 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2524 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2525 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2526 mjpegb_decoder_select="mjpeg_decoder"
2527 mlp_decoder_select="mlp_parser"
2528 mlp_encoder_select="lpc"
2529 motionpixels_decoder_select="bswapdsp"
2530 mp1_decoder_select="mpegaudio"
2531 mp1float_decoder_select="mpegaudio"
2532 mp2_decoder_select="mpegaudio"
2533 mp2float_decoder_select="mpegaudio"
2534 mp3_decoder_select="mpegaudio"
2535 mp3adu_decoder_select="mpegaudio"
2536 mp3adufloat_decoder_select="mpegaudio"
2537 mp3float_decoder_select="mpegaudio"
2538 mp3on4_decoder_select="mpegaudio"
2539 mp3on4float_decoder_select="mpegaudio"
2540 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2541 mpc8_decoder_select="mpegaudiodsp"
2542 mpegvideo_decoder_select="mpegvideo"
2543 mpeg1video_decoder_select="mpegvideo"
2544 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2545 mpeg2video_decoder_select="mpegvideo"
2546 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2547 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2548 mpeg4_encoder_select="h263_encoder"
2549 msa1_decoder_select="mss34dsp"
2550 mscc_decoder_select="zlib"
2551 msmpeg4v1_decoder_select="h263_decoder"
2552 msmpeg4v2_decoder_select="h263_decoder"
2553 msmpeg4v2_encoder_select="h263_encoder"
2554 msmpeg4v3_decoder_select="h263_decoder"
2555 msmpeg4v3_encoder_select="h263_encoder"
2556 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2557 mts2_decoder_select="mss34dsp"
2558 mxpeg_decoder_select="mjpeg_decoder"
2559 nellymoser_decoder_select="mdct sinewin"
2560 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2561 nuv_decoder_select="idctdsp lzo"
2562 on2avc_decoder_select="mdct"
2563 opus_decoder_deps="swresample"
2564 opus_decoder_select="mdct15"
2565 opus_encoder_select="audio_frame_queue mdct15"
2566 png_decoder_select="zlib"
2567 png_encoder_select="llvidencdsp zlib"
2568 prores_decoder_select="blockdsp idctdsp"
2569 prores_encoder_select="fdctdsp"
2570 qcelp_decoder_select="lsp"
2571 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2572 ra_144_decoder_select="audiodsp"
2573 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2574 ralf_decoder_select="golomb"
2575 rawvideo_decoder_select="bswapdsp"
2576 rscc_decoder_select="zlib"
2577 rtjpeg_decoder_select="me_cmp"
2578 rv10_decoder_select="h263_decoder"
2579 rv10_encoder_select="h263_encoder"
2580 rv20_decoder_select="h263_decoder"
2581 rv20_encoder_select="h263_encoder"
2582 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2583 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2584 screenpresso_decoder_select="zlib"
2585 shorten_decoder_select="bswapdsp"
2586 sipr_decoder_select="lsp"
2587 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2588 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2589 sonic_decoder_select="golomb rangecoder"
2590 sonic_encoder_select="golomb rangecoder"
2591 sonic_ls_encoder_select="golomb rangecoder"
2592 sp5x_decoder_select="mjpeg_decoder"
2593 srgc_decoder_select="zlib"
2594 svq1_decoder_select="hpeldsp"
2595 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2596 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2597 svq3_decoder_suggest="zlib"
2598 tak_decoder_select="audiodsp"
2599 tdsc_decoder_select="zlib mjpeg_decoder"
2600 theora_decoder_select="vp3_decoder"
2601 thp_decoder_select="mjpeg_decoder"
2602 tiff_decoder_suggest="zlib lzma"
2603 tiff_encoder_suggest="zlib"
2604 truehd_decoder_select="mlp_parser"
2605 truehd_encoder_select="lpc"
2606 truemotion2_decoder_select="bswapdsp"
2607 truespeech_decoder_select="bswapdsp"
2608 tscc_decoder_select="zlib"
2609 twinvq_decoder_select="mdct lsp sinewin"
2610 txd_decoder_select="texturedsp"
2611 utvideo_decoder_select="bswapdsp llviddsp"
2612 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2613 vble_decoder_select="llviddsp"
2614 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2615 vc1image_decoder_select="vc1_decoder"
2616 vorbis_decoder_select="mdct"
2617 vorbis_encoder_select="mdct"
2618 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2619 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2620 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2621 vp6a_decoder_select="vp6_decoder"
2622 vp6f_decoder_select="vp6_decoder"
2623 vp7_decoder_select="h264pred videodsp vp8dsp"
2624 vp8_decoder_select="h264pred videodsp vp8dsp"
2625 vp9_decoder_select="videodsp vp9_parser"
2626 webp_decoder_select="vp8_decoder exif"
2627 wmalossless_decoder_select="llauddsp"
2628 wmapro_decoder_select="mdct sinewin wma_freqs"
2629 wmav1_decoder_select="mdct sinewin wma_freqs"
2630 wmav1_encoder_select="mdct sinewin wma_freqs"
2631 wmav2_decoder_select="mdct sinewin wma_freqs"
2632 wmav2_encoder_select="mdct sinewin wma_freqs"
2633 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2634 wmv1_decoder_select="h263_decoder"
2635 wmv1_encoder_select="h263_encoder"
2636 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2637 wmv2_encoder_select="h263_encoder wmv2dsp"
2638 wmv3_decoder_select="vc1_decoder"
2639 wmv3image_decoder_select="wmv3_decoder"
2640 xma1_decoder_select="wmapro_decoder"
2641 xma2_decoder_select="wmapro_decoder"
2642 zerocodec_decoder_select="zlib"
2643 zlib_decoder_select="zlib"
2644 zlib_encoder_select="zlib"
2645 zmbv_decoder_select="zlib"
2646 zmbv_encoder_select="zlib"
2647
2648 # hardware accelerators
2649 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2650 cuda_deps_any="libdl LoadLibrary"
2651 cuvid_deps="cuda"
2652 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2653 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2654 nvdec_deps="cuda"
2655 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2656 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2657 xvmc_deps="X11_extensions_XvMClib_h"
2658
2659 h263_vaapi_hwaccel_deps="vaapi"
2660 h263_vaapi_hwaccel_select="h263_decoder"
2661 h263_videotoolbox_hwaccel_deps="videotoolbox"
2662 h263_videotoolbox_hwaccel_select="h263_decoder"
2663 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2664 h264_d3d11va_hwaccel_deps="d3d11va"
2665 h264_d3d11va_hwaccel_select="h264_decoder"
2666 h264_d3d11va2_hwaccel_deps="d3d11va"
2667 h264_d3d11va2_hwaccel_select="h264_decoder"
2668 h264_dxva2_hwaccel_deps="dxva2"
2669 h264_dxva2_hwaccel_select="h264_decoder"
2670 h264_mediacodec_hwaccel_deps="mediacodec"
2671 h264_mmal_hwaccel_deps="mmal"
2672 h264_nvdec_hwaccel_deps="nvdec"
2673 h264_nvdec_hwaccel_select="h264_decoder"
2674 h264_qsv_hwaccel_deps="libmfx"
2675 h264_vaapi_hwaccel_deps="vaapi"
2676 h264_vaapi_hwaccel_select="h264_decoder"
2677 h264_vdpau_hwaccel_deps="vdpau"
2678 h264_vdpau_hwaccel_select="h264_decoder"
2679 h264_videotoolbox_hwaccel_deps="videotoolbox"
2680 h264_videotoolbox_hwaccel_select="h264_decoder"
2681 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2682 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2683 hevc_d3d11va_hwaccel_select="hevc_decoder"
2684 hevc_mediacodec_hwaccel_deps="mediacodec"
2685 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2686 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2687 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2688 hevc_dxva2_hwaccel_select="hevc_decoder"
2689 hevc_nvdec_hwaccel_deps="nvdec"
2690 hevc_nvdec_hwaccel_select="hevc_decoder"
2691 hevc_qsv_hwaccel_deps="libmfx"
2692 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2693 hevc_vaapi_hwaccel_select="hevc_decoder"
2694 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2695 hevc_vdpau_hwaccel_select="hevc_decoder"
2696 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2697 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2698 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2699 mpeg_xvmc_hwaccel_deps="xvmc"
2700 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2701 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2702 mpeg1_vdpau_hwaccel_deps="vdpau"
2703 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2704 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2705 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2706 mpeg1_xvmc_hwaccel_deps="xvmc"
2707 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2708 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2709 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2710 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2711 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2712 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2713 mpeg2_dxva2_hwaccel_deps="dxva2"
2714 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2715 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2716 mpeg2_mmal_hwaccel_deps="mmal"
2717 mpeg2_qsv_hwaccel_deps="libmfx"
2718 mpeg2_vaapi_hwaccel_deps="vaapi"
2719 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2720 mpeg2_vdpau_hwaccel_deps="vdpau"
2721 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2722 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2723 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2724 mpeg2_xvmc_hwaccel_deps="xvmc"
2725 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2726 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2727 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2728 mpeg4_mmal_hwaccel_deps="mmal"
2729 mpeg4_vaapi_hwaccel_deps="vaapi"
2730 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2731 mpeg4_vdpau_hwaccel_deps="vdpau"
2732 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2733 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2734 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2735 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2736 vc1_d3d11va_hwaccel_deps="d3d11va"
2737 vc1_d3d11va_hwaccel_select="vc1_decoder"
2738 vc1_d3d11va2_hwaccel_deps="d3d11va"
2739 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2740 vc1_dxva2_hwaccel_deps="dxva2"
2741 vc1_dxva2_hwaccel_select="vc1_decoder"
2742 vc1_mmal_hwaccel_deps="mmal"
2743 vc1_nvdec_hwaccel_deps="nvdec"
2744 vc1_nvdec_hwaccel_select="vc1_decoder"
2745 vc1_qsv_hwaccel_deps="libmfx"
2746 vc1_vaapi_hwaccel_deps="vaapi"
2747 vc1_vaapi_hwaccel_select="vc1_decoder"
2748 vc1_vdpau_hwaccel_deps="vdpau"
2749 vc1_vdpau_hwaccel_select="vc1_decoder"
2750 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2751 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2752 vp8_mediacodec_hwaccel_deps="mediacodec"
2753 vp8_qsv_hwaccel_deps="libmfx"
2754 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2755 vp9_d3d11va_hwaccel_select="vp9_decoder"
2756 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2757 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2758 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2759 vp9_dxva2_hwaccel_select="vp9_decoder"
2760 vp9_mediacodec_hwaccel_deps="mediacodec"
2761 vp9_nvdec_hwaccel_deps="nvdec"
2762 vp9_nvdec_hwaccel_select="vp9_decoder"
2763 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2764 vp9_vaapi_hwaccel_select="vp9_decoder"
2765 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2766 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2767 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2768 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2769 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2770 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2771
2772 # hardware-accelerated codecs
2773 omx_deps="libdl pthreads"
2774 omx_rpi_select="omx"
2775 qsv_deps="libmfx"
2776 qsvdec_select="qsv"
2777 qsvenc_select="qsv"
2778 qsvvpp_select="qsv"
2779 vaapi_encode_deps="vaapi"
2780 v4l2_m2m_deps_any="linux_videodev2_h"
2781
2782 hwupload_cuda_filter_deps="cuda"
2783 scale_npp_filter_deps="cuda libnpp"
2784 scale_cuda_filter_deps="cuda_sdk"
2785 thumbnail_cuda_filter_deps="cuda_sdk"
2786
2787 nvenc_deps="cuda"
2788 nvenc_deps_any="libdl LoadLibrary"
2789 nvenc_encoder_deps="nvenc"
2790
2791 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2792 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2793 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2794 h264_cuvid_decoder_deps="cuvid"
2795 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2796 h264_mediacodec_decoder_deps="mediacodec"
2797 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2798 h264_mmal_decoder_deps="mmal"
2799 h264_nvenc_encoder_deps="nvenc"
2800 h264_omx_encoder_deps="omx"
2801 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2802 h264_qsv_encoder_select="qsvenc"
2803 h264_rkmpp_decoder_deps="rkmpp"
2804 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2805 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2806 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2807 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2808 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2809 hevc_cuvid_decoder_deps="cuvid"
2810 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2811 hevc_mediacodec_decoder_deps="mediacodec"
2812 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2813 hevc_nvenc_encoder_deps="nvenc"
2814 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2815 hevc_qsv_encoder_select="hevcparse qsvenc"
2816 hevc_rkmpp_decoder_deps="rkmpp"
2817 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2818 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2819 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2820 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2821 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2822 mjpeg_cuvid_decoder_deps="cuvid"
2823 mjpeg_qsv_encoder_deps="libmfx"
2824 mjpeg_qsv_encoder_select="qsvenc"
2825 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2826 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2827 mpeg1_cuvid_decoder_deps="cuvid"
2828 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2829 mpeg2_crystalhd_decoder_select="crystalhd"
2830 mpeg2_cuvid_decoder_deps="cuvid"
2831 mpeg2_mmal_decoder_deps="mmal"
2832 mpeg2_mediacodec_decoder_deps="mediacodec"
2833 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2834 mpeg2_qsv_encoder_select="qsvenc"
2835 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2836 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2837 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2838 mpeg4_crystalhd_decoder_select="crystalhd"
2839 mpeg4_cuvid_decoder_deps="cuvid"
2840 mpeg4_mediacodec_decoder_deps="mediacodec"
2841 mpeg4_mmal_decoder_deps="mmal"
2842 mpeg4_omx_encoder_deps="omx"
2843 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2844 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2845 msmpeg4_crystalhd_decoder_select="crystalhd"
2846 nvenc_h264_encoder_select="h264_nvenc_encoder"
2847 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2848 vc1_crystalhd_decoder_select="crystalhd"
2849 vc1_cuvid_decoder_deps="cuvid"
2850 vc1_mmal_decoder_deps="mmal"
2851 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2852 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2853 vp8_cuvid_decoder_deps="cuvid"
2854 vp8_mediacodec_decoder_deps="mediacodec"
2855 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2856 vp8_rkmpp_decoder_deps="rkmpp"
2857 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2858 vp8_vaapi_encoder_select="vaapi_encode"
2859 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2860 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2861 vp9_cuvid_decoder_deps="cuvid"
2862 vp9_mediacodec_decoder_deps="mediacodec"
2863 vp9_rkmpp_decoder_deps="rkmpp"
2864 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2865 vp9_vaapi_encoder_select="vaapi_encode"
2866 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2867 wmv3_crystalhd_decoder_select="crystalhd"
2868
2869 # parsers
2870 aac_parser_select="adts_header"
2871 h264_parser_select="golomb h264dsp h264parse"
2872 hevc_parser_select="hevcparse"
2873 mpegaudio_parser_select="mpegaudioheader"
2874 mpegvideo_parser_select="mpegvideo"
2875 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2876 vc1_parser_select="vc1dsp"
2877
2878 # bitstream_filters
2879 aac_adtstoasc_bsf_select="adts_header"
2880 h264_metadata_bsf_select="cbs_h264"
2881 h264_redundant_pps_bsf_select="cbs_h264"
2882 hevc_metadata_bsf_select="cbs_h265"
2883 mjpeg2jpeg_bsf_select="jpegtables"
2884 mpeg2_metadata_bsf_select="cbs_mpeg2"
2885 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2886
2887 # external libraries
2888 aac_at_decoder_deps="audiotoolbox"
2889 ac3_at_decoder_deps="audiotoolbox"
2890 ac3_at_decoder_select="ac3_parser"
2891 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2892 alac_at_decoder_deps="audiotoolbox"
2893 amr_nb_at_decoder_deps="audiotoolbox"
2894 avisynth_deps_any="libdl LoadLibrary"
2895 avisynth_demuxer_deps="avisynth"
2896 avisynth_demuxer_select="riffdec"
2897 eac3_at_decoder_deps="audiotoolbox"
2898 eac3_at_decoder_select="ac3_parser"
2899 gsm_ms_at_decoder_deps="audiotoolbox"
2900 ilbc_at_decoder_deps="audiotoolbox"
2901 mp1_at_decoder_deps="audiotoolbox"
2902 mp2_at_decoder_deps="audiotoolbox"
2903 mp3_at_decoder_deps="audiotoolbox"
2904 mp1_at_decoder_select="mpegaudioheader"
2905 mp2_at_decoder_select="mpegaudioheader"
2906 mp3_at_decoder_select="mpegaudioheader"
2907 pcm_alaw_at_decoder_deps="audiotoolbox"
2908 pcm_mulaw_at_decoder_deps="audiotoolbox"
2909 qdmc_at_decoder_deps="audiotoolbox"
2910 qdm2_at_decoder_deps="audiotoolbox"
2911 aac_at_encoder_deps="audiotoolbox"
2912 aac_at_encoder_select="audio_frame_queue"
2913 alac_at_encoder_deps="audiotoolbox"
2914 alac_at_encoder_select="audio_frame_queue"
2915 ilbc_at_encoder_deps="audiotoolbox"
2916 ilbc_at_encoder_select="audio_frame_queue"
2917 pcm_alaw_at_encoder_deps="audiotoolbox"
2918 pcm_alaw_at_encoder_select="audio_frame_queue"
2919 pcm_mulaw_at_encoder_deps="audiotoolbox"
2920 pcm_mulaw_at_encoder_select="audio_frame_queue"
2921 chromaprint_muxer_deps="chromaprint"
2922 h264_videotoolbox_encoder_deps="pthreads"
2923 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2924 hevc_videotoolbox_encoder_deps="pthreads"
2925 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
2926 libcelt_decoder_deps="libcelt"
2927 libfdk_aac_decoder_deps="libfdk_aac"
2928 libfdk_aac_encoder_deps="libfdk_aac"
2929 libfdk_aac_encoder_select="audio_frame_queue"
2930 libgme_demuxer_deps="libgme"
2931 libgsm_decoder_deps="libgsm"
2932 libgsm_encoder_deps="libgsm"
2933 libgsm_ms_decoder_deps="libgsm"
2934 libgsm_ms_encoder_deps="libgsm"
2935 libilbc_decoder_deps="libilbc"
2936 libilbc_encoder_deps="libilbc"
2937 libkvazaar_encoder_deps="libkvazaar"
2938 libmodplug_demuxer_deps="libmodplug"
2939 libmp3lame_encoder_deps="libmp3lame"
2940 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2941 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2942 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2943 libopencore_amrnb_encoder_select="audio_frame_queue"
2944 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2945 libopenh264_decoder_deps="libopenh264"
2946 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2947 libopenh264_encoder_deps="libopenh264"
2948 libopenjpeg_decoder_deps="libopenjpeg"
2949 libopenjpeg_encoder_deps="libopenjpeg"
2950 libopenmpt_demuxer_deps="libopenmpt"
2951 libopus_decoder_deps="libopus"
2952 libopus_encoder_deps="libopus"
2953 libopus_encoder_select="audio_frame_queue"
2954 librsvg_decoder_deps="librsvg"
2955 libshine_encoder_deps="libshine"
2956 libshine_encoder_select="audio_frame_queue"
2957 libspeex_decoder_deps="libspeex"
2958 libspeex_encoder_deps="libspeex"
2959 libspeex_encoder_select="audio_frame_queue"
2960 libtheora_encoder_deps="libtheora"
2961 libtwolame_encoder_deps="libtwolame"
2962 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2963 libvorbis_decoder_deps="libvorbis"
2964 libvorbis_encoder_deps="libvorbis libvorbisenc"
2965 libvorbis_encoder_select="audio_frame_queue"
2966 libvpx_vp8_decoder_deps="libvpx"
2967 libvpx_vp8_encoder_deps="libvpx"
2968 libvpx_vp9_decoder_deps="libvpx"
2969 libvpx_vp9_encoder_deps="libvpx"
2970 libwavpack_encoder_deps="libwavpack"
2971 libwavpack_encoder_select="audio_frame_queue"
2972 libwebp_encoder_deps="libwebp"
2973 libwebp_anim_encoder_deps="libwebp"
2974 libx262_encoder_deps="libx262"
2975 libx264_encoder_deps="libx264"
2976 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2977 libx264rgb_encoder_select="libx264_encoder"
2978 libx265_encoder_deps="libx265"
2979 libxavs_encoder_deps="libxavs"
2980 libxvid_encoder_deps="libxvid"
2981 libzvbi_teletext_decoder_deps="libzvbi"
2982 videotoolbox_suggest="coreservices"
2983 videotoolbox_deps="corefoundation coremedia corevideo"
2984 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2985
2986 # demuxers / muxers
2987 ac3_demuxer_select="ac3_parser"
2988 aiff_muxer_select="iso_media"
2989 asf_demuxer_select="riffdec"
2990 asf_o_demuxer_select="riffdec"
2991 asf_muxer_select="riffenc"
2992 asf_stream_muxer_select="asf_muxer"
2993 avi_demuxer_select="iso_media riffdec exif"
2994 avi_muxer_select="riffenc"
2995 caf_demuxer_select="iso_media riffdec"
2996 caf_muxer_select="iso_media"
2997 dash_muxer_select="mp4_muxer"
2998 dash_demuxer_deps="libxml2"
2999 dirac_demuxer_select="dirac_parser"
3000 dts_demuxer_select="dca_parser"
3001 dtshd_demuxer_select="dca_parser"
3002 dv_demuxer_select="dvprofile"
3003 dv_muxer_select="dvprofile"
3004 dxa_demuxer_select="riffdec"
3005 eac3_demuxer_select="ac3_parser"
3006 f4v_muxer_select="mov_muxer"
3007 fifo_muxer_deps="threads"
3008 flac_demuxer_select="flac_parser"
3009 hds_muxer_select="flv_muxer"
3010 hls_muxer_select="mpegts_muxer"
3011 hls_muxer_suggest="gcrypt openssl"
3012 image2_alias_pix_demuxer_select="image2_demuxer"
3013 image2_brender_pix_demuxer_select="image2_demuxer"
3014 ipod_muxer_select="mov_muxer"
3015 ismv_muxer_select="mov_muxer"
3016 matroska_audio_muxer_select="matroska_muxer"
3017 matroska_demuxer_select="iso_media riffdec"
3018 matroska_demuxer_suggest="bzlib lzo zlib"
3019 matroska_muxer_select="iso_media riffenc"
3020 mmf_muxer_select="riffenc"
3021 mov_demuxer_select="iso_media riffdec"
3022 mov_demuxer_suggest="zlib"
3023 mov_muxer_select="iso_media riffenc rtpenc_chain"
3024 mp3_demuxer_select="mpegaudio_parser"
3025 mp3_muxer_select="mpegaudioheader"
3026 mp4_muxer_select="mov_muxer"
3027 mpegts_demuxer_select="iso_media"
3028 mpegts_muxer_select="adts_muxer latm_muxer"
3029 mpegtsraw_demuxer_select="mpegts_demuxer"
3030 mxf_d10_muxer_select="mxf_muxer"
3031 mxf_opatom_muxer_select="mxf_muxer"
3032 nut_muxer_select="riffenc"
3033 nuv_demuxer_select="riffdec"
3034 oga_muxer_select="ogg_muxer"
3035 ogg_demuxer_select="dirac_parse"
3036 ogv_muxer_select="ogg_muxer"
3037 opus_muxer_select="ogg_muxer"
3038 psp_muxer_select="mov_muxer"
3039 rtp_demuxer_select="sdp_demuxer"
3040 rtp_muxer_select="golomb"
3041 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3042 rtsp_demuxer_select="http_protocol rtpdec"
3043 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3044 sap_demuxer_select="sdp_demuxer"
3045 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3046 sdp_demuxer_select="rtpdec"
3047 smoothstreaming_muxer_select="ismv_muxer"
3048 spdif_demuxer_select="adts_header"
3049 spdif_muxer_select="adts_header"
3050 spx_muxer_select="ogg_muxer"
3051 swf_demuxer_suggest="zlib"
3052 tak_demuxer_select="tak_parser"
3053 tg2_muxer_select="mov_muxer"
3054 tgp_muxer_select="mov_muxer"
3055 vobsub_demuxer_select="mpegps_demuxer"
3056 w64_demuxer_select="wav_demuxer"
3057 w64_muxer_select="wav_muxer"
3058 wav_demuxer_select="riffdec"
3059 wav_muxer_select="riffenc"
3060 webm_muxer_select="iso_media riffenc"
3061 webm_dash_manifest_demuxer_select="matroska_demuxer"
3062 wtv_demuxer_select="mpegts_demuxer riffdec"
3063 wtv_muxer_select="mpegts_muxer riffenc"
3064 xmv_demuxer_select="riffdec"
3065 xwma_demuxer_select="riffdec"
3066
3067 # indevs / outdevs
3068 alsa_indev_deps="alsa"
3069 alsa_outdev_deps="alsa"
3070 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3071 avfoundation_indev_suggest="coregraphics applicationservices"
3072 avfoundation_indev_extralibs="-framework Foundation"
3073 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3074 caca_outdev_deps="libcaca"
3075 decklink_deps_any="libdl LoadLibrary"
3076 decklink_indev_deps="decklink threads"
3077 decklink_indev_extralibs="-lstdc++"
3078 decklink_outdev_deps="decklink threads"
3079 decklink_outdev_extralibs="-lstdc++"
3080 libndi_newtek_indev_deps="libndi_newtek"
3081 libndi_newtek_indev_extralibs="-lndi"
3082 libndi_newtek_outdev_deps="libndi_newtek"
3083 libndi_newtek_outdev_extralibs="-lndi"
3084 dshow_indev_deps="IBaseFilter"
3085 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3086 fbdev_indev_deps="linux_fb_h"
3087 fbdev_outdev_deps="linux_fb_h"
3088 gdigrab_indev_deps="CreateDIBSection"
3089 gdigrab_indev_extralibs="-lgdi32"
3090 gdigrab_indev_select="bmp_decoder"
3091 iec61883_indev_deps="libiec61883"
3092 jack_indev_deps="libjack"
3093 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3094 kmsgrab_indev_deps="libdrm"
3095 lavfi_indev_deps="avfilter"
3096 libcdio_indev_deps="libcdio"
3097 libdc1394_indev_deps="libdc1394"
3098 openal_indev_deps="openal"
3099 opengl_outdev_deps="opengl"
3100 oss_indev_deps_any="sys_soundcard_h"
3101 oss_outdev_deps_any="sys_soundcard_h"
3102 pulse_indev_deps="libpulse"
3103 pulse_outdev_deps="libpulse"
3104 sdl2_outdev_deps="sdl2"
3105 sndio_indev_deps="sndio"
3106 sndio_outdev_deps="sndio"
3107 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3108 v4l2_indev_suggest="libv4l2"
3109 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3110 v4l2_outdev_suggest="libv4l2"
3111 vfwcap_indev_deps="vfw32 vfwcap_defines"
3112 xcbgrab_indev_deps="libxcb"
3113 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3114 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3115 xv_outdev_extralibs="-lXv -lX11 -lXext"
3116
3117 # protocols
3118 async_protocol_deps="threads"
3119 bluray_protocol_deps="libbluray"
3120 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3121 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3122 ffrtmpcrypt_protocol_select="tcp_protocol"
3123 ffrtmphttp_protocol_conflict="librtmp_protocol"
3124 ffrtmphttp_protocol_select="http_protocol"
3125 ftp_protocol_select="tcp_protocol"
3126 gopher_protocol_select="network"
3127 http_protocol_select="tcp_protocol"
3128 http_protocol_suggest="zlib"
3129 httpproxy_protocol_select="tcp_protocol"
3130 httpproxy_protocol_suggest="zlib"
3131 https_protocol_select="tls_protocol"
3132 https_protocol_suggest="zlib"
3133 icecast_protocol_select="http_protocol"
3134 librtmp_protocol_deps="librtmp"
3135 librtmpe_protocol_deps="librtmp"
3136 librtmps_protocol_deps="librtmp"
3137 librtmpt_protocol_deps="librtmp"
3138 librtmpte_protocol_deps="librtmp"
3139 libsmbclient_protocol_deps="libsmbclient gplv3"
3140 libssh_protocol_deps="libssh"
3141 mmsh_protocol_select="http_protocol"
3142 mmst_protocol_select="network"
3143 rtmp_protocol_conflict="librtmp_protocol"
3144 rtmp_protocol_select="tcp_protocol"
3145 rtmp_protocol_suggest="zlib"
3146 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3147 rtmpe_protocol_suggest="zlib"
3148 rtmps_protocol_conflict="librtmp_protocol"
3149 rtmps_protocol_select="tls_protocol"
3150 rtmps_protocol_suggest="zlib"
3151 rtmpt_protocol_select="ffrtmphttp_protocol"
3152 rtmpt_protocol_suggest="zlib"
3153 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3154 rtmpte_protocol_suggest="zlib"
3155 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3156 rtmpts_protocol_suggest="zlib"
3157 rtp_protocol_select="udp_protocol"
3158 schannel_conflict="openssl gnutls"
3159 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3160 sctp_protocol_select="network"
3161 securetransport_conflict="openssl gnutls"
3162 srtp_protocol_select="rtp_protocol srtp"
3163 tcp_protocol_select="network"
3164 tls_protocol_deps_any="gnutls openssl schannel securetransport"
3165 tls_protocol_select="tcp_protocol"
3166 udp_protocol_select="network"
3167 udplite_protocol_select="network"
3168 unix_protocol_deps="sys_un_h"
3169 unix_protocol_select="network"
3170
3171 # filters
3172 afftfilt_filter_deps="avcodec"
3173 afftfilt_filter_select="fft"
3174 afir_filter_deps="avcodec"
3175 afir_filter_select="fft"
3176 amovie_filter_deps="avcodec avformat"
3177 aresample_filter_deps="swresample"
3178 ass_filter_deps="libass"
3179 atempo_filter_deps="avcodec"
3180 atempo_filter_select="rdft"
3181 azmq_filter_deps="libzmq"
3182 blackframe_filter_deps="gpl"
3183 boxblur_filter_deps="gpl"
3184 bs2b_filter_deps="libbs2b"
3185 colormatrix_filter_deps="gpl"
3186 coreimage_filter_deps="coreimage appkit"
3187 coreimage_filter_extralibs="-framework OpenGL"
3188 coreimagesrc_filter_deps="coreimage appkit"
3189 coreimagesrc_filter_extralibs="-framework OpenGL"
3190 cover_rect_filter_deps="avcodec avformat gpl"
3191 cropdetect_filter_deps="gpl"
3192 deinterlace_qsv_filter_deps="libmfx"
3193 deinterlace_vaapi_filter_deps="vaapi"
3194 delogo_filter_deps="gpl"
3195 deshake_filter_select="pixelutils"
3196 deshake_filter_suggest="opencl"
3197 drawtext_filter_deps="libfreetype"
3198 drawtext_filter_suggest="libfontconfig libfribidi"
3199 elbg_filter_deps="avcodec"
3200 eq_filter_deps="gpl"
3201 fftfilt_filter_deps="avcodec"
3202 fftfilt_filter_select="rdft"
3203 find_rect_filter_deps="avcodec avformat gpl"
3204 firequalizer_filter_deps="avcodec"
3205 firequalizer_filter_select="rdft"
3206 flite_filter_deps="libflite"
3207 framerate_filter_select="pixelutils"
3208 frei0r_filter_deps="frei0r libdl"
3209 frei0r_src_filter_deps="frei0r libdl"
3210 fspp_filter_deps="gpl"
3211 geq_filter_deps="gpl"
3212 histeq_filter_deps="gpl"
3213 hqdn3d_filter_deps="gpl"
3214 interlace_filter_deps="gpl"
3215 kerndeint_filter_deps="gpl"
3216 ladspa_filter_deps="ladspa libdl"
3217 mcdeint_filter_deps="avcodec gpl"
3218 movie_filter_deps="avcodec avformat"
3219 mpdecimate_filter_deps="gpl"
3220 mpdecimate_filter_select="pixelutils"
3221 mptestsrc_filter_deps="gpl"
3222 negate_filter_deps="lut_filter"
3223 nnedi_filter_deps="gpl"
3224 ocr_filter_deps="libtesseract"
3225 ocv_filter_deps="libopencv"
3226 overlay_qsv_filter_deps="libmfx"
3227 overlay_qsv_filter_select="qsvvpp"
3228 owdenoise_filter_deps="gpl"
3229 pan_filter_deps="swresample"
3230 perspective_filter_deps="gpl"
3231 phase_filter_deps="gpl"
3232 pp7_filter_deps="gpl"
3233 pp_filter_deps="gpl postproc"
3234 pullup_filter_deps="gpl"
3235 removelogo_filter_deps="avcodec avformat swscale"
3236 repeatfields_filter_deps="gpl"
3237 resample_filter_deps="avresample"
3238 rubberband_filter_deps="librubberband"
3239 sab_filter_deps="gpl swscale"
3240 scale2ref_filter_deps="swscale"
3241 scale_filter_deps="swscale"
3242 scale_qsv_filter_deps="libmfx"
3243 select_filter_select="pixelutils"
3244 showcqt_filter_deps="avcodec avformat swscale"
3245 showcqt_filter_suggest="libfontconfig libfreetype"
3246 showcqt_filter_select="fft"
3247 showfreqs_filter_deps="avcodec"
3248 showfreqs_filter_select="fft"
3249 showspectrum_filter_deps="avcodec"
3250 showspectrum_filter_select="fft"
3251 showspectrumpic_filter_deps="avcodec"
3252 showspectrumpic_filter_select="fft"
3253 signature_filter_deps="gpl avcodec avformat"
3254 smartblur_filter_deps="gpl swscale"
3255 sofalizer_filter_deps="libmysofa avcodec"
3256 sofalizer_filter_select="fft"
3257 spectrumsynth_filter_deps="avcodec"
3258 spectrumsynth_filter_select="fft"
3259 spp_filter_deps="gpl avcodec"
3260 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3261 stereo3d_filter_deps="gpl"
3262 subtitles_filter_deps="avformat avcodec libass"
3263 super2xsai_filter_deps="gpl"
3264 pixfmts_super2xsai_test_deps="super2xsai_filter"
3265 tinterlace_filter_deps="gpl"
3266 tinterlace_merge_test_deps="tinterlace_filter"
3267 tinterlace_pad_test_deps="tinterlace_filter"
3268 tonemap_filter_deps="const_nan"
3269 uspp_filter_deps="gpl avcodec"
3270 unsharp_filter_suggest="opencl"
3271 vaguedenoiser_filter_deps="gpl"
3272 vidstabdetect_filter_deps="libvidstab"
3273 vidstabtransform_filter_deps="libvidstab"
3274 libvmaf_filter_deps="libvmaf"
3275 zmq_filter_deps="libzmq"
3276 zoompan_filter_deps="swscale"
3277 zscale_filter_deps="libzimg const_nan"
3278 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3279 vpp_qsv_filter_deps="libmfx"
3280 vpp_qsv_filter_select="qsvvpp"
3281
3282 # examples
3283 avio_dir_cmd_deps="avformat avutil"
3284 avio_reading_deps="avformat avcodec avutil"
3285 decode_audio_example_deps="avcodec avutil"
3286 decode_video_example_deps="avcodec avutil"
3287 demuxing_decoding_example_deps="avcodec avformat avutil"
3288 encode_audio_example_deps="avcodec avutil"
3289 encode_video_example_deps="avcodec avutil"
3290 extract_mvs_example_deps="avcodec avformat avutil"
3291 filter_audio_example_deps="avfilter avutil"
3292 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3293 filtering_video_example_deps="avfilter avcodec avformat avutil"
3294 http_multiclient_example_deps="avformat avutil fork"
3295 hw_decode_example_deps="avcodec avformat avutil"
3296 metadata_example_deps="avformat avutil"
3297 muxing_example_deps="avcodec avformat avutil swscale"
3298 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3299 remuxing_example_deps="avcodec avformat avutil"
3300 resampling_audio_example_deps="avutil swresample"
3301 scaling_video_example_deps="avutil swscale"
3302 transcode_aac_example_deps="avcodec avformat swresample"
3303 transcoding_example_deps="avfilter avcodec avformat avutil"
3304
3305 # EXTRALIBS_LIST
3306 cpu_init_extralibs="pthreads_extralibs"
3307 cws2fws_extralibs="zlib_extralibs"
3308
3309 # libraries, in linking order
3310 avcodec_deps="avutil"
3311 avcodec_suggest="libm"
3312 avcodec_select="null_bsf"
3313 avdevice_deps="avformat avcodec avutil"
3314 avdevice_suggest="libm"
3315 avfilter_deps="avutil"
3316 avfilter_suggest="libm"
3317 avformat_deps="avcodec avutil"
3318 avformat_suggest="libm network zlib"
3319 avresample_deps="avutil"
3320 avresample_suggest="libm"
3321 avutil_suggest="clock_gettime cuda libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3322 postproc_deps="avutil gpl"
3323 postproc_suggest="libm"
3324 swresample_deps="avutil"
3325 swresample_suggest="libm libsoxr"
3326 swscale_deps="avutil"
3327 swscale_suggest="libm"
3328
3329 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3330 avfilter_extralibs="pthreads_extralibs"
3331 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3332
3333 # programs
3334 ffmpeg_deps="avcodec avfilter avformat swresample"
3335 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3336                null_filter
3337                trim_filter"
3338 ffmpeg_suggest="ole32 psapi shell32"
3339 ffplay_deps="avcodec avformat swscale swresample sdl2"
3340 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3341 ffplay_suggest="shell32"
3342 ffprobe_deps="avcodec avformat"
3343 ffprobe_suggest="shell32"
3344 ffserver_deps="avformat fork sarestart"
3345 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3346
3347 # documentation
3348 podpages_deps="perl"
3349 manpages_deps="perl pod2man"
3350 htmlpages_deps="perl"
3351 htmlpages_deps_any="makeinfo_html texi2html"
3352 txtpages_deps="perl makeinfo"
3353 doc_deps_any="manpages htmlpages podpages txtpages"
3354
3355 # default parameters
3356
3357 logfile="ffbuild/config.log"
3358
3359 # installation paths
3360 prefix_default="/usr/local"
3361 bindir_default='${prefix}/bin'
3362 datadir_default='${prefix}/share/ffmpeg'
3363 docdir_default='${prefix}/share/doc/ffmpeg'
3364 incdir_default='${prefix}/include'
3365 libdir_default='${prefix}/lib'
3366 mandir_default='${prefix}/share/man'
3367
3368 # toolchain
3369 ar_default="ar"
3370 cc_default="gcc"
3371 cxx_default="g++"
3372 host_cc_default="gcc"
3373 doxygen_default="doxygen"
3374 install="install"
3375 ln_s_default="ln -s -f"
3376 nm_default="nm -g"
3377 pkg_config_default=pkg-config
3378 ranlib_default="ranlib"
3379 strip_default="strip"
3380 version_script='--version-script'
3381 x86asmexe_default="nasm"
3382 windres_default="windres"
3383 nvcc_default="nvcc"
3384 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3385 striptype="direct"
3386
3387 # OS
3388 target_os_default=$(tolower $(uname -s))
3389 host_os=$target_os_default
3390
3391 # machine
3392 if test "$target_os_default" = aix; then
3393     arch_default=$(uname -p)
3394     strip_default="strip -X32_64"
3395 else
3396     arch_default=$(uname -m)
3397 fi
3398 cpu="generic"
3399 intrinsics="none"
3400
3401 # configurable options
3402 enable $PROGRAM_LIST
3403 enable $DOCUMENT_LIST
3404 enable $EXAMPLE_LIST
3405 enable $(filter_out avresample $LIBRARY_LIST)
3406 enable stripping
3407
3408 enable asm
3409 enable debug
3410 enable doc
3411 enable faan faandct faanidct
3412 enable optimizations
3413 enable runtime_cpudetect
3414 enable safe_bitstream_reader
3415 enable static
3416 enable swscale_alpha
3417 enable valgrind_backtrace
3418
3419 sws_max_filter_size_default=256
3420 set_default sws_max_filter_size
3421
3422 # internal components are enabled by default
3423 enable $EXTRALIBS_LIST
3424
3425 # Avoid external, non-system, libraries getting enabled by dependency resolution
3426 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3427
3428 # build settings
3429 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3430 LIBPREF="lib"
3431 LIBSUF=".a"
3432 FULLNAME='$(NAME)$(BUILDSUF)'
3433 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3434 SLIBPREF="lib"
3435 SLIBSUF=".so"
3436 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3437 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3438 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3439 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3440 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3441 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3442 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3443
3444 asflags_filter=echo
3445 cflags_filter=echo
3446 ldflags_filter=echo
3447
3448 AS_C='-c'
3449 AS_O='-o $@'
3450 CC_C='-c'
3451 CC_E='-E -o $@'
3452 CC_O='-o $@'
3453 CXX_C='-c'
3454 CXX_O='-o $@'
3455 OBJCC_C='-c'
3456 OBJCC_E='-E -o $@'
3457 OBJCC_O='-o $@'
3458 X86ASM_O='-o $@'
3459 LD_O='-o $@'
3460 LD_LIB='-l%'
3461 LD_PATH='-L'
3462 HOSTCC_C='-c'
3463 HOSTCC_E='-E -o $@'
3464 HOSTCC_O='-o $@'
3465 HOSTLD_O='-o $@'
3466 NVCC_C='-c'
3467 NVCC_O='-o $@'
3468
3469 host_extralibs='-lm'
3470 host_cflags_filter=echo
3471 host_ldflags_filter=echo
3472
3473 target_path='$(CURDIR)'
3474
3475 # since the object filename is not given with the -MM flag, the compiler
3476 # is only able to print the basename, and we must add the path ourselves
3477 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3478 DEPFLAGS='-MM'
3479
3480 mkdir -p ffbuild
3481
3482 # find source path
3483 if test -f configure; then
3484     source_path=.
3485 else
3486     source_path=$(cd $(dirname "$0"); pwd)
3487     case "$source_path" in
3488         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3489     esac
3490     test -e "$source_path/config.h" &&
3491         die "Out of tree builds are impossible with config.h in source dir."
3492 fi
3493
3494 for v in "$@"; do
3495     r=${v#*=}
3496     l=${v%"$r"}
3497     r=$(sh_quote "$r")
3498     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3499 done
3500
3501 find_things(){
3502     thing=$1
3503     pattern=$2
3504     file=$source_path/$3
3505     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3506 }
3507
3508 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3509 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3510 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3511 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3512 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3513 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3514 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3515 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3516 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3517
3518 find_things_extern(){
3519     thing=$1
3520     pattern=$2
3521     file=$source_path/$3
3522     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3523 }
3524
3525 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3526 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3527
3528 AVCODEC_COMPONENTS_LIST="
3529     $BSF_LIST
3530     $DECODER_LIST
3531     $ENCODER_LIST
3532     $HWACCEL_LIST
3533     $PARSER_LIST
3534 "
3535
3536 AVDEVICE_COMPONENTS_LIST="
3537     $INDEV_LIST
3538     $OUTDEV_LIST
3539 "
3540
3541 AVFILTER_COMPONENTS_LIST="
3542     $FILTER_LIST
3543 "
3544
3545 AVFORMAT_COMPONENTS_LIST="
3546     $DEMUXER_LIST
3547     $MUXER_LIST
3548     $PROTOCOL_LIST
3549 "
3550
3551 ALL_COMPONENTS="
3552     $AVCODEC_COMPONENTS_LIST
3553     $AVDEVICE_COMPONENTS_LIST
3554     $AVFILTER_COMPONENTS_LIST
3555     $AVFORMAT_COMPONENTS_LIST
3556 "
3557
3558 for n in $COMPONENT_LIST; do
3559     v=$(toupper ${n%s})_LIST
3560     eval enable \$$v
3561     eval ${n}_if_any="\$$v"
3562 done
3563
3564 enable $ARCH_EXT_LIST
3565
3566 die_unknown(){
3567     echo "Unknown option \"$1\"."
3568     echo "See $0 --help for available options."
3569     exit 1
3570 }
3571
3572 print_in_columns() {
3573     cols=$(expr $ncols / 24)
3574     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3575 }
3576
3577 show_list() {
3578     suffix=_$1
3579     shift
3580     echo $* | sed s/$suffix//g | print_in_columns
3581     exit 0
3582 }
3583
3584 rand_list(){
3585     IFS=', '
3586     set -- $*
3587     unset IFS
3588     for thing; do
3589         comp=${thing%:*}
3590         prob=${thing#$comp}
3591         prob=${prob#:}
3592         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3593         echo "prob ${prob:-0.5}"
3594         printf '%s\n' $comp
3595     done
3596 }
3597
3598 do_random(){
3599     action=$1
3600     shift
3601     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3602     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3603 }
3604
3605 for opt do
3606     optval="${opt#*=}"
3607     case "$opt" in
3608         --extra-ldflags=*)
3609             add_ldflags $optval
3610         ;;
3611         --extra-ldexeflags=*)
3612             add_ldexeflags $optval
3613         ;;
3614         --extra-ldsoflags=*)
3615             add_ldsoflags $optval
3616         ;;
3617         --extra-ldlibflags=*)
3618             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3619                  "removed in the future. Use --extra-ldsoflags instead."
3620             add_ldsoflags $optval
3621         ;;
3622         --extra-libs=*)
3623             add_extralibs $optval
3624         ;;
3625         --disable-devices)
3626             disable $INDEV_LIST $OUTDEV_LIST
3627         ;;
3628         --enable-debug=*)
3629             debuglevel="$optval"
3630         ;;
3631         --disable-programs)
3632             disable $PROGRAM_LIST
3633         ;;
3634         --disable-everything)
3635             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3636         ;;
3637         --disable-all)
3638             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3639             disable $LIBRARY_LIST $PROGRAM_LIST doc
3640             enable avutil
3641         ;;
3642         --enable-random|--disable-random)
3643             action=${opt%%-random}
3644             do_random ${action#--} $COMPONENT_LIST
3645         ;;
3646         --enable-random=*|--disable-random=*)
3647             action=${opt%%-random=*}
3648             do_random ${action#--} $optval
3649         ;;
3650         --enable-sdl)
3651             enable sdl2
3652         ;;
3653         --enable-*=*|--disable-*=*)
3654             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3655             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3656             eval list=\$$(toupper $thing)_LIST
3657             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3658             list=$(filter "$name" $list)
3659             [ "$list" = "" ] && warn "Option $opt did not match anything"
3660             $action $list
3661         ;;
3662         --enable-yasm|--disable-yasm)
3663             warn "The ${opt} option is only provided for compatibility and will be\n"\
3664                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3665             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3666         ;;
3667         --yasmexe=*)
3668             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3669                  "removed in the future. Use --x86asmexe instead."
3670             x86asmexe="$optval"
3671         ;;
3672         --enable-?*|--disable-?*)
3673             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3674             if is_in $option $COMPONENT_LIST; then
3675                 test $action = disable && action=unset
3676                 eval $action \$$(toupper ${option%s})_LIST
3677             elif is_in $option $CMDLINE_SELECT; then
3678                 $action $option
3679             else
3680                 die_unknown $opt
3681             fi
3682         ;;
3683         --list-*)
3684             NAME="${opt#--list-}"
3685             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3686             NAME=${NAME%s}
3687             eval show_list $NAME \$$(toupper $NAME)_LIST
3688         ;;
3689         --help|-h) show_help
3690         ;;
3691         --quiet|-q) quiet=yes
3692         ;;
3693         --fatal-warnings) enable fatal_warnings
3694         ;;
3695         --libfuzzer=*)
3696             libfuzzer_path="$optval"
3697         ;;
3698         *)
3699             optname="${opt%%=*}"
3700             optname="${optname#--}"
3701             optname=$(echo "$optname" | sed 's/-/_/g')
3702             if is_in $optname $CMDLINE_SET; then
3703                 eval $optname='$optval'
3704             elif is_in $optname $CMDLINE_APPEND; then
3705                 append $optname "$optval"
3706             else
3707                 die_unknown $opt
3708             fi
3709         ;;
3710     esac
3711 done
3712
3713 for e in $env; do
3714     eval "export $e"
3715 done
3716
3717 if disabled autodetect; then
3718
3719     # Unless iconv is explicitely disabled by the user, we still want to probe
3720     # for the iconv from the libc.
3721     disabled iconv || enable libc_iconv
3722
3723     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3724     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3725 fi
3726 # Mark specifically enabled, but normally autodetected libraries as requested.
3727 for lib in $AUTODETECT_LIBS; do
3728     enabled $lib && request $lib
3729 done
3730 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3731 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3732 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3733
3734 disabled logging && logfile=/dev/null
3735
3736 # we need to build at least one lib type
3737 if ! enabled_any static shared; then
3738     cat <<EOF
3739 At least one library type must be built.
3740 Specify --enable-static to build the static libraries or --enable-shared to
3741 build the shared libraries as well. To only build the shared libraries specify
3742 --disable-static in addition to --enable-shared.
3743 EOF
3744     exit 1
3745 fi
3746
3747 die_license_disabled() {
3748     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3749 }
3750
3751 die_license_disabled_gpl() {
3752     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3753 }
3754
3755 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3756 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3757
3758 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3759 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3760
3761 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3762
3763 enabled_all gnutls openssl &&
3764     die "GnuTLS and OpenSSL must not be enabled at the same time."
3765
3766 # Disable all the library-specific components if the library itself
3767 # is disabled, see AVCODEC_LIST and following _LIST variables.
3768
3769 disable_components(){
3770     disabled ${1} && disable $(
3771         eval components="\$$(toupper ${1})_COMPONENTS"
3772         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3773     )
3774 }
3775
3776 map 'disable_components $v' $LIBRARY_LIST
3777
3778 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3779 set >> $logfile
3780
3781 test -n "$valgrind" && toolchain="valgrind-memcheck"
3782
3783 enabled ossfuzz && {
3784     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3785     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3786 }
3787
3788 case "$toolchain" in
3789     *-asan)
3790         cc_default="${toolchain%-asan}"
3791         add_cflags  -fsanitize=address
3792         add_ldflags -fsanitize=address
3793     ;;
3794     *-msan)
3795         cc_default="${toolchain%-msan}"
3796         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3797         add_ldflags -fsanitize=memory
3798     ;;
3799     *-tsan)
3800         cc_default="${toolchain%-tsan}"
3801         add_cflags  -fsanitize=thread -fPIE
3802         add_ldflags -fsanitize=thread -pie
3803         case "$toolchain" in
3804             gcc-tsan)
3805                 add_cflags  -fPIC
3806                 add_ldflags -fPIC
3807                 ;;
3808         esac
3809     ;;
3810     *-usan)
3811         cc_default="${toolchain%-usan}"
3812         add_cflags  -fsanitize=undefined
3813         add_ldflags -fsanitize=undefined
3814     ;;
3815     valgrind-*)
3816         target_exec_default="valgrind"
3817         case "$toolchain" in
3818             valgrind-massif)
3819                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3820                 ;;
3821             valgrind-memcheck)
3822                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3823                 ;;
3824         esac
3825     ;;
3826     msvc)
3827         # Check whether the current MSVC version needs the C99 converter.
3828         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3829         # support enough of C99 to build ffmpeg. Default to the new
3830         # behaviour if the regexp was unable to match anything, since this
3831         # successfully parses the version number of existing supported
3832         # versions that require the converter (MSVC 2010 and 2012).
3833         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3834         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3835             cc_default="cl"
3836             cxx_default="cl"
3837         else
3838             cc_default="c99wrap cl"
3839             cxx_default="c99wrap cl"
3840         fi
3841         ld_default="$source_path/compat/windows/mslink"
3842         nm_default="dumpbin -symbols"
3843         ar_default="lib"
3844         case "$arch" in
3845         aarch64|arm64)
3846             as_default="armasm64"
3847             ;;
3848         arm*)
3849             as_default="armasm"
3850             ;;
3851         esac
3852         target_os_default="win32"
3853         # Use a relative path for TMPDIR. This makes sure all the
3854         # ffconf temp files are written with a relative path, avoiding
3855         # issues with msys/win32 path conversion for MSVC parameters
3856         # such as -Fo<file> or -out:<file>.
3857         TMPDIR=.
3858     ;;
3859     icl)
3860         cc_default="icl"
3861         ld_default="xilink"
3862         nm_default="dumpbin -symbols"
3863         ar_default="xilib"
3864         target_os_default="win32"
3865         TMPDIR=.
3866     ;;
3867     gcov)
3868         add_cflags  -fprofile-arcs -ftest-coverage
3869         add_ldflags -fprofile-arcs -ftest-coverage
3870     ;;
3871     llvm-cov)
3872         add_cflags -fprofile-arcs -ftest-coverage
3873         add_ldflags --coverage
3874     ;;
3875     hardened)
3876         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3877         add_cflags   -fno-strict-overflow -fstack-protector-all
3878         add_ldflags  -Wl,-z,relro -Wl,-z,now
3879         add_cflags   -fPIE
3880         add_ldexeflags -fPIE -pie
3881     ;;
3882     ?*)
3883         die "Unknown toolchain $toolchain"
3884     ;;
3885 esac
3886
3887 test -n "$cross_prefix" && enable cross_compile
3888
3889 if enabled cross_compile; then
3890     test -n "$arch" && test -n "$target_os" ||
3891         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3892 fi
3893
3894 ar_default="${cross_prefix}${ar_default}"
3895 cc_default="${cross_prefix}${cc_default}"
3896 cxx_default="${cross_prefix}${cxx_default}"
3897 nm_default="${cross_prefix}${nm_default}"
3898 pkg_config_default="${cross_prefix}${pkg_config_default}"
3899 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3900     ranlib_default="${cross_prefix}${ranlib_default} -D"
3901 else
3902     ranlib_default="${cross_prefix}${ranlib_default}"
3903 fi
3904 strip_default="${cross_prefix}${strip_default}"
3905 windres_default="${cross_prefix}${windres_default}"
3906
3907 sysinclude_default="${sysroot}/usr/include"
3908
3909 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3910     target_exec target_os x86asmexe nvcc
3911 enabled cross_compile || host_cc_default=$cc
3912 set_default host_cc
3913
3914 pkg_config_fail_message=""
3915 if ! $pkg_config --version >/dev/null 2>&1; then
3916     warn "$pkg_config not found, library detection may fail."
3917     pkg_config=false
3918 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3919     pkg_config_fail_message="
3920 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3921 fi
3922
3923 if test $doxygen != $doxygen_default && \
3924   ! $doxygen --version >/dev/null 2>&1; then
3925     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3926 fi
3927
3928 exesuf() {
3929     case $1 in
3930         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3931     esac
3932 }
3933
3934 EXESUF=$(exesuf $target_os)
3935 HOSTEXESUF=$(exesuf $host_os)
3936
3937 # set temporary file name
3938 : ${TMPDIR:=$TEMPDIR}
3939 : ${TMPDIR:=$TMP}
3940 : ${TMPDIR:=/tmp}
3941
3942 if [ -n "$tempprefix" ] ; then
3943     mktemp(){
3944         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3945         echo "$tmpname"
3946         mkdir "$tmpname"
3947     }
3948 elif ! check_cmd mktemp -u XXXXXX; then
3949     # simple replacement for missing mktemp
3950     # NOT SAFE FOR GENERAL USE
3951     mktemp(){
3952         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3953         echo "$tmpname"
3954         mkdir "$tmpname"
3955     }
3956 fi
3957
3958 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3959     die "Unable to create temporary directory in $TMPDIR."
3960
3961 tmpfile(){
3962     tmp="${FFTMPDIR}/test"$2
3963     (set -C; exec > $tmp) 2> /dev/null ||
3964         die "Unable to create temporary file in $FFTMPDIR."
3965     eval $1=$tmp
3966 }
3967
3968 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3969 trap 'exit 2' INT
3970
3971 tmpfile TMPASM .asm
3972 tmpfile TMPC   .c
3973 tmpfile TMPCPP .cpp
3974 tmpfile TMPE   $EXESUF
3975 tmpfile TMPH   .h
3976 tmpfile TMPM   .m
3977 tmpfile TMPO   .o
3978 tmpfile TMPS   .S
3979 tmpfile TMPSH  .sh
3980 tmpfile TMPV   .ver
3981
3982 unset -f mktemp
3983
3984 chmod +x $TMPE
3985
3986 # make sure we can execute files in $TMPDIR
3987 cat > $TMPSH 2>> $logfile <<EOF
3988 #! /bin/sh
3989 EOF
3990 chmod +x $TMPSH >> $logfile 2>&1
3991 if ! $TMPSH >> $logfile 2>&1; then
3992     cat <<EOF
3993 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3994 variable to another directory and make sure that it is not mounted noexec.
3995 EOF
3996     die "Sanity test failed."
3997 fi
3998
3999 armasm_flags(){
4000     for flag; do
4001         case $flag in
4002             # Filter out MSVC cl.exe options from cflags that shouldn't
4003             # be passed to gas-preprocessor
4004             -M[TD]*)                                            ;;
4005             *)                  echo $flag                      ;;
4006         esac
4007    done
4008 }
4009
4010 cparser_flags(){
4011     for flag; do
4012         case $flag in
4013             -Wno-switch)             echo -Wno-switch-enum ;;
4014             -Wno-format-zero-length) ;;
4015             -Wdisabled-optimization) ;;
4016             -Wno-pointer-sign)       echo -Wno-other ;;
4017             *)                       echo $flag ;;
4018         esac
4019     done
4020 }
4021
4022 msvc_common_flags(){
4023     for flag; do
4024         case $flag in
4025             # In addition to specifying certain flags under the compiler
4026             # specific filters, they must be specified here as well or else the
4027             # generic catch all at the bottom will print the original flag.
4028             -Wall)                ;;
4029             -Wextra)              ;;
4030             -std=c99)             ;;
4031             # Common flags
4032             -fomit-frame-pointer) ;;
4033             -g)                   echo -Z7 ;;
4034             -fno-math-errno)      ;;
4035             -fno-common)          ;;
4036             -fno-signed-zeros)    ;;
4037             -fPIC)                ;;
4038             -mthumb)              ;;
4039             -march=*)             ;;
4040             -lz)                  echo zlib.lib ;;
4041             -lx264)               echo libx264.lib ;;
4042             -lstdc++)             ;;
4043             -l*)                  echo ${flag#-l}.lib ;;
4044             -LARGEADDRESSAWARE)   echo $flag ;;
4045             -L*)                  echo -libpath:${flag#-L} ;;
4046             *)                    echo $flag ;;
4047         esac
4048     done
4049 }
4050
4051 msvc_flags(){
4052     msvc_common_flags "$@"
4053     for flag; do
4054         case $flag in
4055             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4056                                        -wd4554 ;;
4057             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4058                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4059                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4060                                        -wd4307 \
4061                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4062         esac
4063     done
4064 }
4065
4066 icl_flags(){
4067     msvc_common_flags "$@"
4068     for flag; do
4069         case $flag in
4070             # Despite what Intel's documentation says -Wall, which is supported
4071             # on Windows, does enable remarks so disable them here.
4072             -Wall)                echo $flag -Qdiag-disable:remark ;;
4073             -std=c99)             echo -Qstd=c99 ;;
4074             -flto)                echo -ipo ;;
4075         esac
4076     done
4077 }
4078
4079 icc_flags(){
4080     for flag; do
4081         case $flag in
4082             -flto)                echo -ipo ;;
4083             *)                    echo $flag ;;
4084         esac
4085     done
4086 }
4087
4088 suncc_flags(){
4089     for flag; do
4090         case $flag in
4091             -march=*|-mcpu=*)
4092                 case "${flag#*=}" in
4093                     native)                   echo -xtarget=native       ;;
4094                     v9|niagara)               echo -xarch=sparc          ;;
4095                     ultrasparc)               echo -xarch=sparcvis       ;;
4096                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4097                     i586|pentium)             echo -xchip=pentium        ;;
4098                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4099                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4100                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4101                     pentium4*)          echo -xtarget=pentium4           ;;
4102                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4103                     *-sse3)             echo -xarch=sse3                 ;;
4104                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4105                     bonnell)                   echo -xarch=ssse3         ;;
4106                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4107                     westmere)                  echo -xtarget=westmere    ;;
4108                     silvermont)                echo -xarch=sse4_2        ;;
4109                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4110                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4111                                                echo -xarch=avx           ;;
4112                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4113                     btver1)                    echo -xarch=amdsse4a      ;;
4114                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4115                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4116                     k8|opteron|athlon64|athlon-fx)
4117                                                echo -xarch=sse2a         ;;
4118                     athlon*)                   echo -xarch=pentium_proa  ;;
4119                 esac
4120                 ;;
4121             -std=c99)             echo -xc99              ;;
4122             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4123             -fPIC)                echo -KPIC -xcode=pic32 ;;
4124             -W*,*)                echo $flag              ;;
4125             -f*-*|-W*|-mimpure-text)                      ;;
4126             -shared)              echo -G                 ;;
4127             *)                    echo $flag              ;;
4128         esac
4129     done
4130 }
4131
4132 probe_cc(){
4133     pfx=$1
4134     _cc=$2
4135     first=$3