lavc: Add trace_headers bitstream filter
[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   --disable-jack           disable libjack support [autodetect]
221   --enable-jni             enable JNI support [no]
222   --enable-ladspa          enable LADSPA audio filtering [no]
223   --enable-libass          enable libass subtitles rendering,
224                            needed for subtitles and ass filter [no]
225   --enable-libbluray       enable BluRay reading using libbluray [no]
226   --enable-libbs2b         enable bs2b DSP library [no]
227   --enable-libcaca         enable textual display using libcaca [no]
228   --enable-libcelt         enable CELT decoding via libcelt [no]
229   --enable-libcdio         enable audio CD grabbing with libcdio [no]
230   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
231                            and libraw1394 [no]
232   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
233   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
234   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
235   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
236   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
237   --enable-libgme          enable Game Music Emu via libgme [no]
238   --enable-libgsm          enable GSM de/encoding via libgsm [no]
239   --enable-libiec61883     enable iec61883 via libiec61883 [no]
240   --enable-libilbc         enable iLBC de/encoding via libilbc [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-nvenc          disable Nvidia video encoding code [autodetect]
317   --enable-omx             enable OpenMAX IL code [no]
318   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
319   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
320   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
321   --disable-vda            disable Apple Video Decode Acceleration 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 [$LDEXEFLAGS]
369   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
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_safe(){
589     var=$1
590     shift
591     eval $(sanitize_var_name "$var")='$*'
592 }
593
594 get_safe(){
595     eval echo \$$(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_safe(){
641     for var; do
642         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
643     done
644 }
645
646 disable_safe(){
647     for var; do
648         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
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_ldlibflags(){
874     append LDLIBFLAGS $($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     check_ld "cc" "$@" <<EOF
1085 int main(void){ return 0; }
1086 EOF
1087 }
1088
1089 check_ldflags(){
1090     log check_ldflags "$@"
1091     test_ldflags "$@" && add_ldflags "$@"
1092 }
1093
1094 test_stripflags(){
1095     log test_stripflags "$@"
1096     # call check_cc to get a fresh TMPO
1097     check_cc <<EOF
1098 int main(void) { return 0; }
1099 EOF
1100     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1101 }
1102
1103 check_stripflags(){
1104     log check_stripflags "$@"
1105     test_stripflags "$@" && add_stripflags "$@"
1106 }
1107
1108 check_header(){
1109     log check_header "$@"
1110     header=$1
1111     shift
1112     disable_safe $header
1113     check_cpp "$@" <<EOF && enable_safe $header
1114 #include <$header>
1115 int x;
1116 EOF
1117 }
1118
1119 check_header_objcc(){
1120     log check_header_objcc "$@"
1121     rm -f -- "$TMPO"
1122     header=$1
1123     shift
1124     disable_safe $header
1125     {
1126        echo "#include <$header>"
1127        echo "int main(void) { return 0; }"
1128     } | check_objcc && check_stat "$TMPO" && enable_safe $header
1129 }
1130
1131 check_apple_framework(){
1132     log check_apple_framework "$@"
1133     framework="$1"
1134     name="$(tolower $framework)"
1135     header="${framework}/${framework}.h"
1136     disable $name
1137     check_header_objcc $header &&
1138         enable $name && eval ${name}_extralibs='"-framework $framework"'
1139 }
1140
1141 check_func(){
1142     log check_func "$@"
1143     func=$1
1144     shift
1145     disable $func
1146     check_ld "cc" "$@" <<EOF && enable $func
1147 extern int $func();
1148 int main(void){ $func(); }
1149 EOF
1150 }
1151
1152 check_complexfunc(){
1153     log check_complexfunc "$@"
1154     func=$1
1155     narg=$2
1156     shift 2
1157     test $narg = 2 && args="f, g" || args="f * I"
1158     disable $func
1159     check_ld "cc" "$@" <<EOF && enable $func
1160 #include <complex.h>
1161 #include <math.h>
1162 float foo(complex float f, complex float g) { return $func($args); }
1163 int main(void){ return (int) foo; }
1164 EOF
1165 }
1166
1167 check_mathfunc(){
1168     log check_mathfunc "$@"
1169     func=$1
1170     narg=$2
1171     shift 2
1172     test $narg = 2 && args="f, g" || args="f"
1173     disable $func
1174     check_ld "cc" "$@" <<EOF && enable $func
1175 #include <math.h>
1176 float foo(float f, float g) { return $func($args); }
1177 int main(void){ return (int) foo; }
1178 EOF
1179 }
1180
1181 check_func_headers(){
1182     log check_func_headers "$@"
1183     headers=$1
1184     funcs=$2
1185     shift 2
1186     {
1187         for hdr in $headers; do
1188             print_include $hdr
1189         done
1190         echo "#include <stdint.h>"
1191         for func in $funcs; do
1192             echo "long check_$func(void) { return (long) $func; }"
1193         done
1194         echo "int main(void) { int ret = 0;"
1195         # LTO could optimize out the test functions without this
1196         for func in $funcs; do
1197             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1198         done
1199         echo "return ret; }"
1200     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1201 }
1202
1203 check_class_headers_cpp(){
1204     log check_class_headers_cpp "$@"
1205     headers=$1
1206     classes=$2
1207     shift 2
1208     {
1209         for hdr in $headers; do
1210             echo "#include <$hdr>"
1211         done
1212         echo "int main(void) { "
1213         i=1
1214         for class in $classes; do
1215             echo "$class obj$i;"
1216             i=$(expr $i + 1)
1217         done
1218         echo "return 0; }"
1219     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1220 }
1221
1222 check_cpp_condition(){
1223     log check_cpp_condition "$@"
1224     header=$1
1225     condition=$2
1226     shift 2
1227     check_cpp "$@" <<EOF
1228 #include <$header>
1229 #if !($condition)
1230 #error "unsatisfied condition: $condition"
1231 #endif
1232 EOF
1233 }
1234
1235 test_cflags_cc(){
1236     log test_cflags_cc "$@"
1237     flags=$1
1238     header=$2
1239     condition=$3
1240     shift 3
1241     set -- $($cflags_filter "$flags")
1242     check_cc "$@" <<EOF
1243 #include <$header>
1244 #if !($condition)
1245 #error "unsatisfied condition: $condition"
1246 #endif
1247 EOF
1248 }
1249
1250 check_lib(){
1251     log check_lib "$@"
1252     name="$1"
1253     headers="$2"
1254     funcs="$3"
1255     shift 3
1256     disable $name
1257     check_func_headers "$headers" "$funcs" "$@" &&
1258         enable $name && eval ${name}_extralibs="\$@"
1259 }
1260
1261 check_lib_cpp(){
1262     log check_lib_cpp "$@"
1263     name="$1"
1264     headers="$2"
1265     classes="$3"
1266     shift 3
1267     disable $name
1268     check_class_headers_cpp "$headers" "$classes" "$@" &&
1269         enable $name && eval ${name}_extralibs="\$@"
1270 }
1271
1272 check_pkg_config(){
1273     log check_pkg_config "$@"
1274     name="$1"
1275     pkg_version="$2"
1276     pkg="${2%% *}"
1277     headers="$3"
1278     funcs="$4"
1279     shift 4
1280     disable $name
1281     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1282     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1283     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1284     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1285         enable $name &&
1286         set_safe "${name}_cflags"    $pkg_cflags &&
1287         set_safe "${name}_extralibs" $pkg_libs
1288 }
1289
1290 check_exec(){
1291     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1292 }
1293
1294 check_exec_crash(){
1295     log check_exec_crash "$@"
1296     code=$(cat)
1297
1298     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1299     # are safe but may not be available everywhere.  Thus we use
1300     # raise(SIGTERM) instead.  The check is run in a subshell so we
1301     # can redirect the "Terminated" message from the shell.  SIGBUS
1302     # is not defined by standard C so it is used conditionally.
1303
1304     (check_exec "$@") >> $logfile 2>&1 <<EOF
1305 #include <signal.h>
1306 static void sighandler(int sig){
1307     raise(SIGTERM);
1308 }
1309 int foo(void){
1310     $code
1311 }
1312 int (*func_ptr)(void) = foo;
1313 int main(void){
1314     signal(SIGILL, sighandler);
1315     signal(SIGFPE, sighandler);
1316     signal(SIGSEGV, sighandler);
1317 #ifdef SIGBUS
1318     signal(SIGBUS, sighandler);
1319 #endif
1320     return func_ptr();
1321 }
1322 EOF
1323 }
1324
1325 check_type(){
1326     log check_type "$@"
1327     headers=$1
1328     type=$2
1329     shift 2
1330     disable_safe "$type"
1331     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1332 }
1333
1334 check_struct(){
1335     log check_struct "$@"
1336     headers=$1
1337     struct=$2
1338     member=$3
1339     shift 3
1340     disable_safe "${struct}_${member}"
1341     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1342         enable_safe "${struct}_${member}"
1343 }
1344
1345 check_builtin(){
1346     log check_builtin "$@"
1347     name=$1
1348     headers=$2
1349     builtin=$3
1350     shift 3
1351     disable "$name"
1352     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1353 }
1354
1355 check_compile_assert(){
1356     log check_compile_assert "$@"
1357     name=$1
1358     headers=$2
1359     condition=$3
1360     shift 3
1361     disable "$name"
1362     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1363 }
1364
1365 require(){
1366     log require "$@"
1367     name_version="$1"
1368     name="${1%% *}"
1369     headers="$2"
1370     func="$3"
1371     shift 3
1372     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1373 }
1374
1375 require_cpp(){
1376     name="$1"
1377     headers="$2"
1378     classes="$3"
1379     shift 3
1380     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1381 }
1382
1383 require_header(){
1384     log require "$@"
1385     header="$1"
1386     shift
1387     check_header "$header" "$@" || die "ERROR: $header header not found"
1388 }
1389
1390 require_cpp_condition(){
1391     log require "$@"
1392     header="$1"
1393     condition="$2"
1394     shift 2
1395     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1396 }
1397
1398 use_pkg_config(){
1399     log use_pkg_config "$@"
1400     name="$1"
1401     check_pkg_config "$@" || return 1
1402     add_cflags    $(get_safe "${name}_cflags")
1403 }
1404
1405 require_pkg_config(){
1406     log require_pkg_config "$@"
1407     pkg_version="$2"
1408     use_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1409 }
1410
1411 hostcc_e(){
1412     eval printf '%s\\n' $HOSTCC_E
1413 }
1414
1415 hostcc_o(){
1416     eval printf '%s\\n' $HOSTCC_O
1417 }
1418
1419 check_host_cc(){
1420     log check_host_cc "$@"
1421     cat > $TMPC
1422     log_file $TMPC
1423     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1424 }
1425
1426 check_host_cpp(){
1427     log check_host_cpp "$@"
1428     cat > $TMPC
1429     log_file $TMPC
1430     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1431 }
1432
1433 check_host_cppflags(){
1434     log check_host_cppflags "$@"
1435     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1436 #include <stdlib.h>
1437 EOF
1438 }
1439
1440 check_host_cflags(){
1441     log check_host_cflags "$@"
1442     set -- $($host_cflags_filter "$@")
1443     check_host_cc "$@" <<EOF && append host_cflags "$@"
1444 int x;
1445 EOF
1446 }
1447
1448 check_host_cpp_condition(){
1449     log check_host_cpp_condition "$@"
1450     header=$1
1451     condition=$2
1452     shift 2
1453     check_host_cpp "$@" <<EOF
1454 #include <$header>
1455 #if !($condition)
1456 #error "unsatisfied condition: $condition"
1457 #endif
1458 EOF
1459 }
1460
1461 cp_if_changed(){
1462     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1463     mkdir -p "$(dirname $2)"
1464     cp -f "$1" "$2"
1465 }
1466
1467 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1468 # system-dependent things.
1469
1470 AVCODEC_COMPONENTS="
1471     bsfs
1472     decoders
1473     encoders
1474     hwaccels
1475     parsers
1476 "
1477
1478 AVDEVICE_COMPONENTS="
1479     indevs
1480     outdevs
1481 "
1482
1483 AVFILTER_COMPONENTS="
1484     filters
1485 "
1486
1487 AVFORMAT_COMPONENTS="
1488     demuxers
1489     muxers
1490     protocols
1491 "
1492
1493 AVRESAMPLE_COMPONENTS=""
1494
1495 AVUTIL_COMPONENTS=""
1496
1497 COMPONENT_LIST="
1498     $AVCODEC_COMPONENTS
1499     $AVDEVICE_COMPONENTS
1500     $AVFILTER_COMPONENTS
1501     $AVFORMAT_COMPONENTS
1502     $AVRESAMPLE_COMPONENTS
1503     $AVUTIL_COMPONENTS
1504 "
1505
1506 EXAMPLE_LIST="
1507     avio_dir_cmd_example
1508     avio_reading_example
1509     decode_audio_example
1510     decode_video_example
1511     demuxing_decoding_example
1512     encode_audio_example
1513     encode_video_example
1514     extract_mvs_example
1515     filter_audio_example
1516     filtering_audio_example
1517     filtering_video_example
1518     http_multiclient_example
1519     hw_decode_example
1520     metadata_example
1521     muxing_example
1522     qsvdec_example
1523     remuxing_example
1524     resampling_audio_example
1525     scaling_video_example
1526     transcode_aac_example
1527     transcoding_example
1528 "
1529
1530 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1531     alsa
1532     appkit
1533     avfoundation
1534     bzlib
1535     coreimage
1536     iconv
1537     jack
1538     libxcb
1539     libxcb_shm
1540     libxcb_shape
1541     libxcb_xfixes
1542     lzma
1543     schannel
1544     sdl2
1545     securetransport
1546     sndio
1547     xlib
1548     zlib
1549 "
1550
1551 EXTERNAL_LIBRARY_GPL_LIST="
1552     avisynth
1553     frei0r
1554     libcdio
1555     librubberband
1556     libvidstab
1557     libx264
1558     libx265
1559     libxavs
1560     libxvid
1561 "
1562
1563 EXTERNAL_LIBRARY_NONFREE_LIST="
1564     decklink
1565     libndi_newtek
1566     libfdk_aac
1567     openssl
1568 "
1569
1570 EXTERNAL_LIBRARY_VERSION3_LIST="
1571     gmp
1572     libopencore_amrnb
1573     libopencore_amrwb
1574     libvo_amrwbenc
1575     rkmpp
1576 "
1577
1578 EXTERNAL_LIBRARY_GPLV3_LIST="
1579     libsmbclient
1580 "
1581
1582 EXTERNAL_LIBRARY_LIST="
1583     $EXTERNAL_LIBRARY_GPL_LIST
1584     $EXTERNAL_LIBRARY_NONFREE_LIST
1585     $EXTERNAL_LIBRARY_VERSION3_LIST
1586     $EXTERNAL_LIBRARY_GPLV3_LIST
1587     chromaprint
1588     gcrypt
1589     gnutls
1590     jni
1591     ladspa
1592     libass
1593     libbluray
1594     libbs2b
1595     libcaca
1596     libcelt
1597     libdc1394
1598     libdrm
1599     libflite
1600     libfontconfig
1601     libfreetype
1602     libfribidi
1603     libgme
1604     libgsm
1605     libiec61883
1606     libilbc
1607     libkvazaar
1608     libmodplug
1609     libmp3lame
1610     libmysofa
1611     libopencv
1612     libopenh264
1613     libopenjpeg
1614     libopenmpt
1615     libopus
1616     libpulse
1617     librsvg
1618     librtmp
1619     libshine
1620     libsmbclient
1621     libsnappy
1622     libsoxr
1623     libspeex
1624     libssh
1625     libtesseract
1626     libtheora
1627     libtwolame
1628     libv4l2
1629     libvmaf
1630     libvorbis
1631     libvpx
1632     libwavpack
1633     libwebp
1634     libxml2
1635     libzimg
1636     libzmq
1637     libzvbi
1638     mediacodec
1639     openal
1640     opencl
1641     opengl
1642 "
1643
1644 HWACCEL_AUTODETECT_LIBRARY_LIST="
1645     audiotoolbox
1646     crystalhd
1647     cuda
1648     cuvid
1649     d3d11va
1650     dxva2
1651     nvenc
1652     vaapi
1653     vda
1654     vdpau
1655     videotoolbox
1656     v4l2_m2m
1657     xvmc
1658 "
1659
1660 # catchall list of things that require external libs to link
1661 EXTRALIBS_LIST="
1662     cpu_init
1663     cws2fws
1664 "
1665
1666 HWACCEL_LIBRARY_NONFREE_LIST="
1667     cuda_sdk
1668     libnpp
1669 "
1670
1671 HWACCEL_LIBRARY_LIST="
1672     $HWACCEL_LIBRARY_NONFREE_LIST
1673     libmfx
1674     mmal
1675     omx
1676 "
1677
1678 DOCUMENT_LIST="
1679     doc
1680     htmlpages
1681     manpages
1682     podpages
1683     txtpages
1684 "
1685
1686 FEATURE_LIST="
1687     ftrapv
1688     gray
1689     hardcoded_tables
1690     omx_rpi
1691     runtime_cpudetect
1692     safe_bitstream_reader
1693     shared
1694     small
1695     static
1696     swscale_alpha
1697 "
1698
1699 LIBRARY_LIST="
1700     avcodec
1701     avdevice
1702     avfilter
1703     avformat
1704     avresample
1705     avutil
1706     postproc
1707     swresample
1708     swscale
1709 "
1710
1711 LICENSE_LIST="
1712     gpl
1713     nonfree
1714     version3
1715 "
1716
1717 PROGRAM_LIST="
1718     ffplay
1719     ffprobe
1720     ffserver
1721     ffmpeg
1722 "
1723
1724 SUBSYSTEM_LIST="
1725     dct
1726     dwt
1727     error_resilience
1728     faan
1729     fast_unaligned
1730     fft
1731     lsp
1732     lzo
1733     mdct
1734     pixelutils
1735     network
1736     rdft
1737 "
1738
1739 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1740 CONFIG_LIST="
1741     $DOCUMENT_LIST
1742     $EXAMPLE_LIST
1743     $EXTERNAL_LIBRARY_LIST
1744     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1745     $HWACCEL_LIBRARY_LIST
1746     $HWACCEL_AUTODETECT_LIBRARY_LIST
1747     $FEATURE_LIST
1748     $LICENSE_LIST
1749     $LIBRARY_LIST
1750     $PROGRAM_LIST
1751     $SUBSYSTEM_LIST
1752     autodetect
1753     fontconfig
1754     linux_perf
1755     memory_poisoning
1756     neon_clobber_test
1757     ossfuzz
1758     pic
1759     thumb
1760     valgrind_backtrace
1761     xmm_clobber_test
1762     $COMPONENT_LIST
1763 "
1764
1765 THREADS_LIST="
1766     pthreads
1767     os2threads
1768     w32threads
1769 "
1770
1771 ATOMICS_LIST="
1772     atomics_gcc
1773     atomics_suncc
1774     atomics_win32
1775 "
1776
1777 AUTODETECT_LIBS="
1778     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1779     $HWACCEL_AUTODETECT_LIBRARY_LIST
1780     $THREADS_LIST
1781 "
1782
1783 ARCH_LIST="
1784     aarch64
1785     alpha
1786     arm
1787     avr32
1788     avr32_ap
1789     avr32_uc
1790     bfin
1791     ia64
1792     m68k
1793     mips
1794     mips64
1795     parisc
1796     ppc
1797     ppc64
1798     s390
1799     sh4
1800     sparc
1801     sparc64
1802     tilegx
1803     tilepro
1804     tomi
1805     x86
1806     x86_32
1807     x86_64
1808 "
1809
1810 ARCH_EXT_LIST_ARM="
1811     armv5te
1812     armv6
1813     armv6t2
1814     armv8
1815     neon
1816     vfp
1817     vfpv3
1818     setend
1819 "
1820
1821 ARCH_EXT_LIST_MIPS="
1822     mipsfpu
1823     mips32r2
1824     mips32r5
1825     mips64r2
1826     mips32r6
1827     mips64r6
1828     mipsdsp
1829     mipsdspr2
1830     msa
1831 "
1832
1833 ARCH_EXT_LIST_LOONGSON="
1834     loongson2
1835     loongson3
1836     mmi
1837 "
1838
1839 ARCH_EXT_LIST_X86_SIMD="
1840     aesni
1841     amd3dnow
1842     amd3dnowext
1843     avx
1844     avx2
1845     fma3
1846     fma4
1847     mmx
1848     mmxext
1849     sse
1850     sse2
1851     sse3
1852     sse4
1853     sse42
1854     ssse3
1855     xop
1856 "
1857
1858 ARCH_EXT_LIST_PPC="
1859     altivec
1860     dcbzl
1861     ldbrx
1862     power8
1863     ppc4xx
1864     vsx
1865 "
1866
1867 ARCH_EXT_LIST_X86="
1868     $ARCH_EXT_LIST_X86_SIMD
1869     cpunop
1870     i686
1871 "
1872
1873 ARCH_EXT_LIST="
1874     $ARCH_EXT_LIST_ARM
1875     $ARCH_EXT_LIST_PPC
1876     $ARCH_EXT_LIST_X86
1877     $ARCH_EXT_LIST_MIPS
1878     $ARCH_EXT_LIST_LOONGSON
1879 "
1880
1881 ARCH_FEATURES="
1882     aligned_stack
1883     fast_64bit
1884     fast_clz
1885     fast_cmov
1886     local_aligned_8
1887     local_aligned_16
1888     local_aligned_32
1889     simd_align_16
1890     simd_align_32
1891 "
1892
1893 BUILTIN_LIST="
1894     atomic_cas_ptr
1895     machine_rw_barrier
1896     MemoryBarrier
1897     mm_empty
1898     rdtsc
1899     sarestart
1900     sem_timedwait
1901     sync_val_compare_and_swap
1902 "
1903 HAVE_LIST_CMDLINE="
1904     inline_asm
1905     symver
1906     x86asm
1907 "
1908
1909 HAVE_LIST_PUB="
1910     bigendian
1911     fast_unaligned
1912 "
1913
1914 HEADERS_LIST="
1915     altivec_h
1916     arpa_inet_h
1917     asm_types_h
1918     cdio_paranoia_h
1919     cdio_paranoia_paranoia_h
1920     cuda_h
1921     d3d11_h
1922     dispatch_dispatch_h
1923     dev_bktr_ioctl_bt848_h
1924     dev_bktr_ioctl_meteor_h
1925     dev_ic_bt8xx_h
1926     dev_video_bktr_ioctl_bt848_h
1927     dev_video_meteor_ioctl_meteor_h
1928     direct_h
1929     dirent_h
1930     dlfcn_h
1931     dxgidebug_h
1932     dxva_h
1933     ES2_gl_h
1934     gsm_h
1935     io_h
1936     mach_mach_time_h
1937     machine_ioctl_bt848_h
1938     machine_ioctl_meteor_h
1939     malloc_h
1940     opencv2_core_core_c_h
1941     openjpeg_2_3_openjpeg_h
1942     openjpeg_2_2_openjpeg_h
1943     openjpeg_2_1_openjpeg_h
1944     openjpeg_2_0_openjpeg_h
1945     openjpeg_1_5_openjpeg_h
1946     OpenGL_gl3_h
1947     poll_h
1948     soundcard_h
1949     stdatomic_h
1950     sys_mman_h
1951     sys_param_h
1952     sys_resource_h
1953     sys_select_h
1954     sys_soundcard_h
1955     sys_time_h
1956     sys_un_h
1957     sys_videoio_h
1958     termios_h
1959     udplite_h
1960     unistd_h
1961     valgrind_valgrind_h
1962     windows_h
1963     winsock2_h
1964 "
1965
1966 INTRINSICS_LIST="
1967     intrinsics_neon
1968 "
1969
1970 COMPLEX_FUNCS="
1971     cabs
1972     cexp
1973 "
1974
1975 MATH_FUNCS="
1976     atanf
1977     atan2f
1978     cbrt
1979     cbrtf
1980     copysign
1981     cosf
1982     erf
1983     exp2
1984     exp2f
1985     expf
1986     hypot
1987     isfinite
1988     isinf
1989     isnan
1990     ldexpf
1991     llrint
1992     llrintf
1993     log2
1994     log2f
1995     log10f
1996     lrint
1997     lrintf
1998     powf
1999     rint
2000     round
2001     roundf
2002     sinf
2003     trunc
2004     truncf
2005 "
2006
2007 SYSTEM_FUNCS="
2008     access
2009     aligned_malloc
2010     arc4random
2011     clock_gettime
2012     closesocket
2013     CommandLineToArgvW
2014     CoTaskMemFree
2015     CryptGenRandom
2016     fcntl
2017     flt_lim
2018     fork
2019     getaddrinfo
2020     gethrtime
2021     getopt
2022     GetProcessAffinityMask
2023     GetProcessMemoryInfo
2024     GetProcessTimes
2025     getrusage
2026     GetSystemTimeAsFileTime
2027     gettimeofday
2028     glob
2029     glXGetProcAddress
2030     gmtime_r
2031     inet_aton
2032     isatty
2033     jack_port_get_latency_range
2034     kbhit
2035     LoadLibrary
2036     localtime_r
2037     lstat
2038     lzo1x_999_compress
2039     mach_absolute_time
2040     MapViewOfFile
2041     memalign
2042     mkstemp
2043     mmap
2044     mprotect
2045     nanosleep
2046     PeekNamedPipe
2047     posix_memalign
2048     pthread_cancel
2049     sched_getaffinity
2050     SetConsoleTextAttribute
2051     SetConsoleCtrlHandler
2052     setmode
2053     setrlimit
2054     Sleep
2055     strerror_r
2056     sysconf
2057     sysctl
2058     usleep
2059     UTGetOSTypeFromString
2060     VirtualAlloc
2061     wglGetProcAddress
2062 "
2063
2064 TOOLCHAIN_FEATURES="
2065     as_dn_directive
2066     as_fpu_directive
2067     as_func
2068     as_object_arch
2069     asm_mod_q
2070     attribute_may_alias
2071     attribute_packed
2072     blocks_extension
2073     ebp_available
2074     ebx_available
2075     gnu_as
2076     gnu_windres
2077     ibm_asm
2078     inline_asm_direct_symbol_refs
2079     inline_asm_labels
2080     inline_asm_nonlocal_labels
2081     pragma_deprecated
2082     rsync_contimeout
2083     symver_asm_label
2084     symver_gnu_asm
2085     vfp_args
2086     xform_asm
2087     xmm_clobbers
2088 "
2089
2090 TYPES_LIST="
2091     CONDITION_VARIABLE_Ptr
2092     kCMVideoCodecType_HEVC
2093     socklen_t
2094     struct_addrinfo
2095     struct_group_source_req
2096     struct_ip_mreq_source
2097     struct_ipv6_mreq
2098     struct_msghdr_msg_flags
2099     struct_pollfd
2100     struct_rusage_ru_maxrss
2101     struct_sctp_event_subscribe
2102     struct_sockaddr_in6
2103     struct_sockaddr_sa_len
2104     struct_sockaddr_storage
2105     struct_stat_st_mtim_tv_nsec
2106     struct_v4l2_frmivalenum_discrete
2107 "
2108
2109 HAVE_LIST="
2110     $ARCH_EXT_LIST
2111     $(add_suffix _external $ARCH_EXT_LIST)
2112     $(add_suffix _inline   $ARCH_EXT_LIST)
2113     $ARCH_FEATURES
2114     $ATOMICS_LIST
2115     $BUILTIN_LIST
2116     $COMPLEX_FUNCS
2117     $HAVE_LIST_CMDLINE
2118     $HAVE_LIST_PUB
2119     $HEADERS_LIST
2120     $INTRINSICS_LIST
2121     $MATH_FUNCS
2122     $SYSTEM_FUNCS
2123     $THREADS_LIST
2124     $TOOLCHAIN_FEATURES
2125     $TYPES_LIST
2126     atomics_native
2127     dos_paths
2128     libc_msvcrt
2129     makeinfo
2130     makeinfo_html
2131     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2132     perl
2133     pod2man
2134     section_data_rel_ro
2135     texi2html
2136     threads
2137     uwp
2138     vaapi_drm
2139     vaapi_x11
2140     vdpau_x11
2141     winrt
2142 "
2143
2144 # options emitted with CONFIG_ prefix but not available on the command line
2145 CONFIG_EXTRA="
2146     aandcttables
2147     ac3dsp
2148     audio_frame_queue
2149     audiodsp
2150     blockdsp
2151     bswapdsp
2152     cabac
2153     cbs
2154     cbs_h264
2155     cbs_h265
2156     cbs_mpeg2
2157     dirac_parse
2158     dvprofile
2159     exif
2160     faandct
2161     faanidct
2162     fdctdsp
2163     flacdsp
2164     fmtconvert
2165     frame_thread_encoder
2166     g722dsp
2167     golomb
2168     gplv3
2169     h263dsp
2170     h264chroma
2171     h264dsp
2172     h264parse
2173     h264pred
2174     h264qpel
2175     hevcparse
2176     hpeldsp
2177     huffman
2178     huffyuvdsp
2179     huffyuvencdsp
2180     idctdsp
2181     iirfilter
2182     mdct15
2183     intrax8
2184     iso_media
2185     ividsp
2186     jpegtables
2187     lgplv3
2188     libx262
2189     llauddsp
2190     llviddsp
2191     llvidencdsp
2192     lpc
2193     lzf
2194     me_cmp
2195     mpeg_er
2196     mpegaudio
2197     mpegaudiodsp
2198     mpegaudioheader
2199     mpegvideo
2200     mpegvideoenc
2201     mss34dsp
2202     pixblockdsp
2203     qpeldsp
2204     qsv
2205     qsvdec
2206     qsvenc
2207     rangecoder
2208     riffdec
2209     riffenc
2210     rtpdec
2211     rtpenc_chain
2212     rv34dsp
2213     sinewin
2214     snappy
2215     srtp
2216     startcode
2217     texturedsp
2218     texturedspenc
2219     tpeldsp
2220     vaapi_1
2221     vaapi_encode
2222     vc1dsp
2223     videodsp
2224     vp3dsp
2225     vp56dsp
2226     vp8dsp
2227     wma_freqs
2228     wmv2dsp
2229 "
2230
2231 CMDLINE_SELECT="
2232     $ARCH_EXT_LIST
2233     $CONFIG_LIST
2234     $HAVE_LIST_CMDLINE
2235     $THREADS_LIST
2236     asm
2237     cross_compile
2238     debug
2239     extra_warnings
2240     logging
2241     lto
2242     optimizations
2243     rpath
2244     stripping
2245 "
2246
2247 PATHS_LIST="
2248     bindir
2249     datadir
2250     docdir
2251     incdir
2252     libdir
2253     mandir
2254     pkgconfigdir
2255     prefix
2256     shlibdir
2257     install_name_dir
2258 "
2259
2260 CMDLINE_SET="
2261     $PATHS_LIST
2262     ar
2263     arch
2264     as
2265     assert_level
2266     build_suffix
2267     cc
2268     objcc
2269     cpu
2270     cross_prefix
2271     custom_allocator
2272     cxx
2273     dep_cc
2274     doxygen
2275     env
2276     extra_version
2277     gas
2278     host_cc
2279     host_cflags
2280     host_extralibs
2281     host_ld
2282     host_ldflags
2283     host_os
2284     ignore_tests
2285     install
2286     ld
2287     ln_s
2288     logfile
2289     malloc_prefix
2290     nm
2291     optflags
2292     nvccflags
2293     pkg_config
2294     pkg_config_flags
2295     progs_suffix
2296     random_seed
2297     ranlib
2298     samples
2299     strip
2300     sws_max_filter_size
2301     sysinclude
2302     sysroot
2303     target_exec
2304     target_os
2305     target_path
2306     target_samples
2307     tempprefix
2308     toolchain
2309     valgrind
2310     x86asmexe
2311 "
2312
2313 CMDLINE_APPEND="
2314     extra_cflags
2315     extra_cxxflags
2316     extra_objcflags
2317     host_cppflags
2318 "
2319
2320 # code dependency declarations
2321
2322 # architecture extensions
2323
2324 armv5te_deps="arm"
2325 armv6_deps="arm"
2326 armv6t2_deps="arm"
2327 armv8_deps="aarch64"
2328 neon_deps_any="aarch64 arm"
2329 intrinsics_neon_deps="neon"
2330 vfp_deps_any="aarch64 arm"
2331 vfpv3_deps="vfp"
2332 setend_deps="arm"
2333
2334 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2335
2336 loongson2_deps="mips"
2337 loongson3_deps="mips"
2338 mipsfpu_deps="mips"
2339 mipsdsp_deps="mips"
2340 mipsdspr2_deps="mips"
2341 mips32r2_deps="mips"
2342 mips32r5_deps="mips"
2343 mips32r6_deps="mips"
2344 mips64r2_deps="mips"
2345 mips64r6_deps="mips"
2346 msa_deps="mipsfpu"
2347 mmi_deps="mips"
2348
2349 altivec_deps="ppc"
2350 dcbzl_deps="ppc"
2351 ldbrx_deps="ppc"
2352 ppc4xx_deps="ppc"
2353 vsx_deps="altivec"
2354 power8_deps="vsx"
2355
2356 cpunop_deps="i686"
2357 x86_64_select="i686"
2358 x86_64_suggest="fast_cmov"
2359
2360 amd3dnow_deps="mmx"
2361 amd3dnowext_deps="amd3dnow"
2362 i686_deps="x86"
2363 mmx_deps="x86"
2364 mmxext_deps="mmx"
2365 sse_deps="mmxext"
2366 sse2_deps="sse"
2367 sse3_deps="sse2"
2368 ssse3_deps="sse3"
2369 sse4_deps="ssse3"
2370 sse42_deps="sse4"
2371 aesni_deps="sse42"
2372 avx_deps="sse42"
2373 xop_deps="avx"
2374 fma3_deps="avx"
2375 fma4_deps="avx"
2376 avx2_deps="avx"
2377
2378 mmx_external_deps="x86asm"
2379 mmx_inline_deps="inline_asm"
2380 mmx_suggest="mmx_external mmx_inline"
2381
2382 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2383     eval dep=\$${ext}_deps
2384     eval ${ext}_external_deps='"${dep}_external"'
2385     eval ${ext}_inline_deps='"${dep}_inline"'
2386     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2387 done
2388
2389 aligned_stack_if_any="aarch64 ppc x86"
2390 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2391 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2392 fast_unaligned_if_any="aarch64 ppc x86"
2393 simd_align_16_if_any="altivec neon sse"
2394 simd_align_32_if_any="avx"
2395
2396 # system capabilities
2397 symver_if_any="symver_asm_label symver_gnu_asm"
2398 valgrind_backtrace_conflict="optimizations"
2399 valgrind_backtrace_deps="valgrind_valgrind_h"
2400
2401 # threading support
2402 atomics_gcc_if="sync_val_compare_and_swap"
2403 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2404 atomics_win32_if="MemoryBarrier"
2405 atomics_native_if_any="$ATOMICS_LIST"
2406 w32threads_deps="atomics_native"
2407 threads_if_any="$THREADS_LIST"
2408
2409 # subsystems
2410 cbs_h264_select="cbs golomb"
2411 cbs_h265_select="cbs golomb"
2412 cbs_mpeg2_select="cbs"
2413 dct_select="rdft"
2414 dirac_parse_select="golomb"
2415 error_resilience_select="me_cmp"
2416 faandct_deps="faan fdctdsp"
2417 faanidct_deps="faan idctdsp"
2418 h264dsp_select="startcode"
2419 hevcparse_select="golomb"
2420 frame_thread_encoder_deps="encoders threads"
2421 intrax8_select="blockdsp idctdsp"
2422 mdct_select="fft"
2423 mdct15_select="fft"
2424 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2425 mpeg_er_select="error_resilience"
2426 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2427 mpegaudiodsp_select="dct"
2428 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2429 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2430 vc1dsp_select="h264chroma qpeldsp startcode"
2431 rdft_select="fft"
2432
2433 # decoders / encoders
2434 aac_decoder_select="mdct15 mdct sinewin"
2435 aac_fixed_decoder_select="mdct sinewin"
2436 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2437 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2438 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2439 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2440 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2441 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2442 adpcm_g722_decoder_select="g722dsp"
2443 adpcm_g722_encoder_select="g722dsp"
2444 aic_decoder_select="golomb idctdsp"
2445 alac_encoder_select="lpc"
2446 als_decoder_select="bswapdsp"
2447 amrnb_decoder_select="lsp"
2448 amrwb_decoder_select="lsp"
2449 amv_decoder_select="sp5x_decoder exif"
2450 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2451 ape_decoder_select="bswapdsp llauddsp"
2452 apng_decoder_select="zlib"
2453 apng_encoder_select="llvidencdsp zlib"
2454 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2455 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2456 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2457 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2458 atrac1_decoder_select="mdct sinewin"
2459 atrac3_decoder_select="mdct"
2460 atrac3p_decoder_select="mdct sinewin"
2461 avrn_decoder_select="exif jpegtables"
2462 bink_decoder_select="blockdsp hpeldsp"
2463 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2464 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2465 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2466 clearvideo_decoder_select="idctdsp"
2467 cllc_decoder_select="bswapdsp"
2468 comfortnoise_encoder_select="lpc"
2469 cook_decoder_select="audiodsp mdct sinewin"
2470 cscd_decoder_select="lzo"
2471 cscd_decoder_suggest="zlib"
2472 dca_decoder_select="mdct"
2473 dds_decoder_select="texturedsp"
2474 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2475 dnxhd_decoder_select="blockdsp idctdsp"
2476 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2477 dolby_e_decoder_select="mdct"
2478 dvvideo_decoder_select="dvprofile idctdsp"
2479 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2480 dxa_decoder_select="zlib"
2481 dxv_decoder_select="lzf texturedsp"
2482 eac3_decoder_select="ac3_decoder"
2483 eac3_encoder_select="ac3_encoder"
2484 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2485 eatgq_decoder_select="aandcttables"
2486 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2487 exr_decoder_select="zlib"
2488 ffv1_decoder_select="rangecoder"
2489 ffv1_encoder_select="rangecoder"
2490 ffvhuff_decoder_select="huffyuv_decoder"
2491 ffvhuff_encoder_select="huffyuv_encoder"
2492 fic_decoder_select="golomb"
2493 flac_decoder_select="flacdsp"
2494 flac_encoder_select="bswapdsp flacdsp lpc"
2495 flashsv2_decoder_select="zlib"
2496 flashsv2_encoder_select="zlib"
2497 flashsv_decoder_select="zlib"
2498 flashsv_encoder_select="zlib"
2499 flv_decoder_select="h263_decoder"
2500 flv_encoder_select="h263_encoder"
2501 fourxm_decoder_select="blockdsp bswapdsp"
2502 fraps_decoder_select="bswapdsp huffman"
2503 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2504 g729_decoder_select="audiodsp"
2505 h261_decoder_select="mpegvideo"
2506 h261_encoder_select="aandcttables mpegvideoenc"
2507 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2508 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2509 h263i_decoder_select="h263_decoder"
2510 h263p_decoder_select="h263_decoder"
2511 h263p_encoder_select="h263_encoder"
2512 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2513 h264_decoder_suggest="error_resilience"
2514 hap_decoder_select="snappy texturedsp"
2515 hap_encoder_deps="libsnappy"
2516 hap_encoder_select="texturedspenc"
2517 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2518 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2519 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2520 iac_decoder_select="imc_decoder"
2521 imc_decoder_select="bswapdsp fft mdct sinewin"
2522 indeo3_decoder_select="hpeldsp"
2523 indeo4_decoder_select="ividsp"
2524 indeo5_decoder_select="ividsp"
2525 interplay_video_decoder_select="hpeldsp"
2526 jpegls_decoder_select="mjpeg_decoder"
2527 jv_decoder_select="blockdsp"
2528 lagarith_decoder_select="llviddsp"
2529 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2530 magicyuv_decoder_select="llviddsp"
2531 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2532 metasound_decoder_select="lsp mdct sinewin"
2533 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2534 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2535 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2536 mjpegb_decoder_select="mjpeg_decoder"
2537 mlp_decoder_select="mlp_parser"
2538 mlp_encoder_select="lpc"
2539 motionpixels_decoder_select="bswapdsp"
2540 mp1_decoder_select="mpegaudio"
2541 mp1float_decoder_select="mpegaudio"
2542 mp2_decoder_select="mpegaudio"
2543 mp2float_decoder_select="mpegaudio"
2544 mp3_decoder_select="mpegaudio"
2545 mp3adu_decoder_select="mpegaudio"
2546 mp3adufloat_decoder_select="mpegaudio"
2547 mp3float_decoder_select="mpegaudio"
2548 mp3on4_decoder_select="mpegaudio"
2549 mp3on4float_decoder_select="mpegaudio"
2550 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2551 mpc8_decoder_select="mpegaudiodsp"
2552 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2553 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2554 mpegvideo_decoder_select="mpegvideo"
2555 mpeg1video_decoder_select="mpegvideo"
2556 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2557 mpeg2video_decoder_select="mpegvideo"
2558 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2559 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2560 mpeg4_encoder_select="h263_encoder"
2561 msa1_decoder_select="mss34dsp"
2562 mscc_decoder_select="zlib"
2563 msmpeg4v1_decoder_select="h263_decoder"
2564 msmpeg4v2_decoder_select="h263_decoder"
2565 msmpeg4v2_encoder_select="h263_encoder"
2566 msmpeg4v3_decoder_select="h263_decoder"
2567 msmpeg4v3_encoder_select="h263_encoder"
2568 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2569 mts2_decoder_select="mss34dsp"
2570 mxpeg_decoder_select="mjpeg_decoder"
2571 nellymoser_decoder_select="mdct sinewin"
2572 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2573 nuv_decoder_select="idctdsp lzo"
2574 on2avc_decoder_select="mdct"
2575 opus_decoder_deps="swresample"
2576 opus_decoder_select="mdct15"
2577 opus_encoder_select="audio_frame_queue mdct15"
2578 png_decoder_select="zlib"
2579 png_encoder_select="llvidencdsp zlib"
2580 prores_decoder_select="blockdsp idctdsp"
2581 prores_encoder_select="fdctdsp"
2582 qcelp_decoder_select="lsp"
2583 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2584 ra_144_decoder_select="audiodsp"
2585 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2586 ralf_decoder_select="golomb"
2587 rawvideo_decoder_select="bswapdsp"
2588 rscc_decoder_select="zlib"
2589 rtjpeg_decoder_select="me_cmp"
2590 rv10_decoder_select="h263_decoder"
2591 rv10_encoder_select="h263_encoder"
2592 rv20_decoder_select="h263_decoder"
2593 rv20_encoder_select="h263_encoder"
2594 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2595 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2596 screenpresso_decoder_select="zlib"
2597 shorten_decoder_select="bswapdsp"
2598 sipr_decoder_select="lsp"
2599 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2600 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2601 sonic_decoder_select="golomb rangecoder"
2602 sonic_encoder_select="golomb rangecoder"
2603 sonic_ls_encoder_select="golomb rangecoder"
2604 sp5x_decoder_select="mjpeg_decoder"
2605 srgc_decoder_select="zlib"
2606 svq1_decoder_select="hpeldsp"
2607 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2608 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2609 svq3_decoder_suggest="zlib"
2610 tak_decoder_select="audiodsp"
2611 tdsc_decoder_select="zlib mjpeg_decoder"
2612 theora_decoder_select="vp3_decoder"
2613 thp_decoder_select="mjpeg_decoder"
2614 tiff_decoder_suggest="zlib lzma"
2615 tiff_encoder_suggest="zlib"
2616 truehd_decoder_select="mlp_parser"
2617 truehd_encoder_select="lpc"
2618 truemotion2_decoder_select="bswapdsp"
2619 truespeech_decoder_select="bswapdsp"
2620 tscc_decoder_select="zlib"
2621 twinvq_decoder_select="mdct lsp sinewin"
2622 txd_decoder_select="texturedsp"
2623 utvideo_decoder_select="bswapdsp llviddsp"
2624 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2625 vble_decoder_select="llviddsp"
2626 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2627 vc1_qsv_decoder_deps="libmfx"
2628 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2629 vc1image_decoder_select="vc1_decoder"
2630 vorbis_decoder_select="mdct"
2631 vorbis_encoder_select="mdct"
2632 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2633 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2634 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2635 vp6a_decoder_select="vp6_decoder"
2636 vp6f_decoder_select="vp6_decoder"
2637 vp7_decoder_select="h264pred videodsp vp8dsp"
2638 vp8_decoder_select="h264pred videodsp vp8dsp"
2639 vp9_decoder_select="videodsp vp9_parser"
2640 webp_decoder_select="vp8_decoder exif"
2641 wmalossless_decoder_select="llauddsp"
2642 wmapro_decoder_select="mdct sinewin wma_freqs"
2643 wmav1_decoder_select="mdct sinewin wma_freqs"
2644 wmav1_encoder_select="mdct sinewin wma_freqs"
2645 wmav2_decoder_select="mdct sinewin wma_freqs"
2646 wmav2_encoder_select="mdct sinewin wma_freqs"
2647 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2648 wmv1_decoder_select="h263_decoder"
2649 wmv1_encoder_select="h263_encoder"
2650 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2651 wmv2_encoder_select="h263_encoder wmv2dsp"
2652 wmv3_decoder_select="vc1_decoder"
2653 wmv3image_decoder_select="wmv3_decoder"
2654 xma1_decoder_select="wmapro_decoder"
2655 xma2_decoder_select="wmapro_decoder"
2656 zerocodec_decoder_select="zlib"
2657 zlib_decoder_select="zlib"
2658 zlib_encoder_select="zlib"
2659 zmbv_decoder_select="zlib"
2660 zmbv_encoder_select="zlib"
2661
2662 # hardware accelerators
2663 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2664 cuda_deps_any="libdl LoadLibrary"
2665 cuvid_deps="cuda"
2666 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2667 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2668 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2669 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2670 vda_deps="vda_framework pthreads corefoundation"
2671 vda_extralibs="-framework QuartzCore"
2672 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2673 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2674 xvmc_deps="X11_extensions_XvMClib_h"
2675
2676 h263_vaapi_hwaccel_deps="vaapi"
2677 h263_vaapi_hwaccel_select="h263_decoder"
2678 h263_videotoolbox_hwaccel_deps="videotoolbox"
2679 h263_videotoolbox_hwaccel_select="h263_decoder"
2680 h264_cuvid_hwaccel_deps="cuda cuvid"
2681 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2682 h264_d3d11va_hwaccel_deps="d3d11va"
2683 h264_d3d11va_hwaccel_select="h264_decoder"
2684 h264_d3d11va2_hwaccel_deps="d3d11va"
2685 h264_d3d11va2_hwaccel_select="h264_decoder"
2686 h264_dxva2_hwaccel_deps="dxva2"
2687 h264_dxva2_hwaccel_select="h264_decoder"
2688 h264_mediacodec_hwaccel_deps="mediacodec"
2689 h264_mmal_hwaccel_deps="mmal"
2690 h264_qsv_hwaccel_deps="libmfx"
2691 h264_vaapi_hwaccel_deps="vaapi"
2692 h264_vaapi_hwaccel_select="h264_decoder"
2693 h264_vda_hwaccel_deps="vda"
2694 h264_vda_hwaccel_select="h264_decoder"
2695 h264_vda_old_hwaccel_deps="vda"
2696 h264_vda_old_hwaccel_select="h264_decoder"
2697 h264_vdpau_hwaccel_deps="vdpau"
2698 h264_vdpau_hwaccel_select="h264_decoder"
2699 h264_videotoolbox_hwaccel_deps="videotoolbox"
2700 h264_videotoolbox_hwaccel_select="h264_decoder"
2701 hevc_cuvid_hwaccel_deps="cuda cuvid"
2702 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2703 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2704 hevc_d3d11va_hwaccel_select="hevc_decoder"
2705 hevc_mediacodec_hwaccel_deps="mediacodec"
2706 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2707 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2708 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2709 hevc_dxva2_hwaccel_select="hevc_decoder"
2710 hevc_qsv_hwaccel_deps="libmfx"
2711 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2712 hevc_vaapi_hwaccel_select="hevc_decoder"
2713 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2714 hevc_vdpau_hwaccel_select="hevc_decoder"
2715 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2716 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2717 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2718 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2719 mpeg_xvmc_hwaccel_deps="xvmc"
2720 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2721 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2722 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2723 mpeg1_vdpau_hwaccel_deps="vdpau"
2724 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2725 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2726 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2727 mpeg1_xvmc_hwaccel_deps="xvmc"
2728 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2729 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2730 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2731 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2732 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2733 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2734 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2735 mpeg2_dxva2_hwaccel_deps="dxva2"
2736 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2737 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2738 mpeg2_mmal_hwaccel_deps="mmal"
2739 mpeg2_qsv_hwaccel_deps="libmfx"
2740 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2741 mpeg2_vaapi_hwaccel_deps="vaapi"
2742 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2743 mpeg2_vdpau_hwaccel_deps="vdpau"
2744 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2745 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2746 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2747 mpeg2_xvmc_hwaccel_deps="xvmc"
2748 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2749 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2750 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2751 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2752 mpeg4_mmal_hwaccel_deps="mmal"
2753 mpeg4_vaapi_hwaccel_deps="vaapi"
2754 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2755 mpeg4_vdpau_hwaccel_deps="vdpau"
2756 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2757 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2758 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2759 vc1_cuvid_hwaccel_deps="cuda cuvid"
2760 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2761 vc1_d3d11va_hwaccel_deps="d3d11va"
2762 vc1_d3d11va_hwaccel_select="vc1_decoder"
2763 vc1_d3d11va2_hwaccel_deps="d3d11va"
2764 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2765 vc1_dxva2_hwaccel_deps="dxva2"
2766 vc1_dxva2_hwaccel_select="vc1_decoder"
2767 vc1_mmal_hwaccel_deps="mmal"
2768 vc1_qsv_hwaccel_deps="libmfx"
2769 vc1_qsv_hwaccel_select="qsvdec_vc1"
2770 vc1_vaapi_hwaccel_deps="vaapi"
2771 vc1_vaapi_hwaccel_select="vc1_decoder"
2772 vc1_vdpau_hwaccel_deps="vdpau"
2773 vc1_vdpau_hwaccel_select="vc1_decoder"
2774 vp8_cuvid_hwaccel_deps="cuda cuvid"
2775 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2776 vp9_cuvid_hwaccel_deps="cuda cuvid"
2777 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2778 vp8_mediacodec_hwaccel_deps="mediacodec"
2779 vp8_qsv_hwaccel_deps="libmfx"
2780 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2781 vp9_d3d11va_hwaccel_select="vp9_decoder"
2782 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2783 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2784 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2785 vp9_dxva2_hwaccel_select="vp9_decoder"
2786 vp9_mediacodec_hwaccel_deps="mediacodec"
2787 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2788 vp9_vaapi_hwaccel_select="vp9_decoder"
2789 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2790 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2791 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2792 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2793 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2794
2795 # hardware-accelerated codecs
2796 omx_deps="libdl pthreads"
2797 omx_rpi_select="omx"
2798 qsvdec_select="qsv"
2799 qsvenc_select="qsv"
2800 vaapi_encode_deps="vaapi"
2801 v4l2_m2m_deps_any="linux_videodev2_h"
2802
2803 hwupload_cuda_filter_deps="cuda"
2804 scale_npp_filter_deps="cuda libnpp"
2805 scale_cuda_filter_deps="cuda_sdk"
2806 thumbnail_cuda_filter_deps="cuda_sdk"
2807
2808 nvenc_deps="cuda"
2809 nvenc_deps_any="libdl LoadLibrary"
2810 nvenc_encoder_deps="nvenc"
2811
2812 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2813 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2814 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2815 h264_cuvid_decoder_deps="cuda cuvid"
2816 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2817 h264_mediacodec_decoder_deps="mediacodec"
2818 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2819 h264_mmal_decoder_deps="mmal"
2820 h264_nvenc_encoder_deps="nvenc"
2821 h264_omx_encoder_deps="omx"
2822 h264_qsv_decoder_deps="libmfx"
2823 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2824 h264_qsv_encoder_deps="libmfx"
2825 h264_qsv_encoder_select="qsvenc"
2826 h264_rkmpp_decoder_deps="rkmpp"
2827 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2828 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2829 h264_vaapi_encoder_select="vaapi_encode golomb"
2830 h264_vda_decoder_deps="vda"
2831 h264_vda_decoder_select="h264_decoder"
2832 h264_vdpau_decoder_deps="vdpau"
2833 h264_vdpau_decoder_select="h264_decoder"
2834 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2835 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2836 hevc_cuvid_decoder_deps="cuda cuvid"
2837 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2838 hevc_mediacodec_decoder_deps="mediacodec"
2839 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2840 hevc_nvenc_encoder_deps="nvenc"
2841 hevc_qsv_decoder_deps="libmfx"
2842 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2843 hevc_qsv_encoder_deps="libmfx"
2844 hevc_qsv_encoder_select="hevcparse qsvenc"
2845 hevc_rkmpp_decoder_deps="rkmpp"
2846 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2847 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2848 hevc_vaapi_encoder_select="vaapi_encode golomb"
2849 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2850 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2851 mjpeg_cuvid_decoder_deps="cuda cuvid"
2852 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2853 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2854 mpeg1_cuvid_decoder_deps="cuda cuvid"
2855 mpeg1_vdpau_decoder_deps="vdpau"
2856 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2857 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2858 mpeg2_crystalhd_decoder_select="crystalhd"
2859 mpeg2_cuvid_decoder_deps="cuda cuvid"
2860 mpeg2_mmal_decoder_deps="mmal"
2861 mpeg2_mediacodec_decoder_deps="mediacodec"
2862 mpeg2_qsv_decoder_deps="libmfx"
2863 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2864 mpeg2_qsv_encoder_deps="libmfx"
2865 mpeg2_qsv_encoder_select="qsvenc"
2866 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2867 mpeg2_vaapi_encoder_select="vaapi_encode"
2868 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2869 mpeg4_crystalhd_decoder_select="crystalhd"
2870 mpeg4_cuvid_decoder_deps="cuda cuvid"
2871 mpeg4_mediacodec_decoder_deps="mediacodec"
2872 mpeg4_mmal_decoder_deps="mmal"
2873 mpeg4_omx_encoder_deps="omx"
2874 mpeg4_vdpau_decoder_deps="vdpau"
2875 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2876 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2877 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2878 mpeg_vdpau_decoder_deps="vdpau"
2879 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2880 msmpeg4_crystalhd_decoder_select="crystalhd"
2881 nvenc_h264_encoder_select="h264_nvenc_encoder"
2882 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2883 vc1_crystalhd_decoder_select="crystalhd"
2884 vc1_cuvid_decoder_deps="cuda cuvid"
2885 vc1_mmal_decoder_deps="mmal"
2886 vc1_vdpau_decoder_deps="vdpau"
2887 vc1_vdpau_decoder_select="vc1_decoder"
2888 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2889 vp8_cuvid_decoder_deps="cuda cuvid"
2890 vp8_mediacodec_decoder_deps="mediacodec"
2891 vp8_qsv_decoder_deps="libmfx"
2892 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2893 vp8_rkmpp_decoder_deps="rkmpp"
2894 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2895 vp8_vaapi_encoder_select="vaapi_encode"
2896 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2897 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2898 vp9_cuvid_decoder_deps="cuda cuvid"
2899 vp9_mediacodec_decoder_deps="mediacodec"
2900 vp9_rkmpp_decoder_deps="rkmpp"
2901 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2902 vp9_vaapi_encoder_select="vaapi_encode"
2903 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2904 wmv3_crystalhd_decoder_select="crystalhd"
2905 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2906
2907 # parsers
2908 h264_parser_select="golomb h264dsp h264parse"
2909 hevc_parser_select="hevcparse"
2910 mpegaudio_parser_select="mpegaudioheader"
2911 mpegvideo_parser_select="mpegvideo"
2912 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2913 vc1_parser_select="vc1dsp"
2914
2915 # bitstream_filters
2916 mjpeg2jpeg_bsf_select="jpegtables"
2917 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2918
2919 # external libraries
2920 aac_at_decoder_deps="audiotoolbox"
2921 ac3_at_decoder_deps="audiotoolbox"
2922 ac3_at_decoder_select="ac3_parser"
2923 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2924 alac_at_decoder_deps="audiotoolbox"
2925 amr_nb_at_decoder_deps="audiotoolbox"
2926 avisynth_deps_any="libdl LoadLibrary"
2927 avisynth_demuxer_deps="avisynth"
2928 avisynth_demuxer_select="riffdec"
2929 eac3_at_decoder_deps="audiotoolbox"
2930 eac3_at_decoder_select="ac3_parser"
2931 gsm_ms_at_decoder_deps="audiotoolbox"
2932 ilbc_at_decoder_deps="audiotoolbox"
2933 mp1_at_decoder_deps="audiotoolbox"
2934 mp2_at_decoder_deps="audiotoolbox"
2935 mp3_at_decoder_deps="audiotoolbox"
2936 mp1_at_decoder_select="mpegaudioheader"
2937 mp2_at_decoder_select="mpegaudioheader"
2938 mp3_at_decoder_select="mpegaudioheader"
2939 pcm_alaw_at_decoder_deps="audiotoolbox"
2940 pcm_mulaw_at_decoder_deps="audiotoolbox"
2941 qdmc_at_decoder_deps="audiotoolbox"
2942 qdm2_at_decoder_deps="audiotoolbox"
2943 aac_at_encoder_deps="audiotoolbox"
2944 aac_at_encoder_select="audio_frame_queue"
2945 alac_at_encoder_deps="audiotoolbox"
2946 alac_at_encoder_select="audio_frame_queue"
2947 ilbc_at_encoder_deps="audiotoolbox"
2948 ilbc_at_encoder_select="audio_frame_queue"
2949 pcm_alaw_at_encoder_deps="audiotoolbox"
2950 pcm_alaw_at_encoder_select="audio_frame_queue"
2951 pcm_mulaw_at_encoder_deps="audiotoolbox"
2952 pcm_mulaw_at_encoder_select="audio_frame_queue"
2953 chromaprint_muxer_deps="chromaprint"
2954 h264_videotoolbox_encoder_deps="pthreads"
2955 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2956 libcelt_decoder_deps="libcelt"
2957 libfdk_aac_decoder_deps="libfdk_aac"
2958 libfdk_aac_encoder_deps="libfdk_aac"
2959 libfdk_aac_encoder_select="audio_frame_queue"
2960 libgme_demuxer_deps="libgme"
2961 libgsm_decoder_deps="libgsm"
2962 libgsm_encoder_deps="libgsm"
2963 libgsm_ms_decoder_deps="libgsm"
2964 libgsm_ms_encoder_deps="libgsm"
2965 libilbc_decoder_deps="libilbc"
2966 libilbc_encoder_deps="libilbc"
2967 libkvazaar_encoder_deps="libkvazaar"
2968 libmodplug_demuxer_deps="libmodplug"
2969 libmp3lame_encoder_deps="libmp3lame"
2970 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2971 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2972 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2973 libopencore_amrnb_encoder_select="audio_frame_queue"
2974 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2975 libopenh264_decoder_deps="libopenh264"
2976 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2977 libopenh264_encoder_deps="libopenh264"
2978 libopenjpeg_decoder_deps="libopenjpeg"
2979 libopenjpeg_encoder_deps="libopenjpeg"
2980 libopenmpt_demuxer_deps="libopenmpt"
2981 libopus_decoder_deps="libopus"
2982 libopus_encoder_deps="libopus"
2983 libopus_encoder_select="audio_frame_queue"
2984 librsvg_decoder_deps="librsvg"
2985 libshine_encoder_deps="libshine"
2986 libshine_encoder_select="audio_frame_queue"
2987 libspeex_decoder_deps="libspeex"
2988 libspeex_encoder_deps="libspeex"
2989 libspeex_encoder_select="audio_frame_queue"
2990 libtheora_encoder_deps="libtheora"
2991 libtwolame_encoder_deps="libtwolame"
2992 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2993 libvorbis_decoder_deps="libvorbis"
2994 libvorbis_encoder_deps="libvorbis libvorbisenc"
2995 libvorbis_encoder_select="audio_frame_queue"
2996 libvpx_vp8_decoder_deps="libvpx"
2997 libvpx_vp8_encoder_deps="libvpx"
2998 libvpx_vp9_decoder_deps="libvpx"
2999 libvpx_vp9_encoder_deps="libvpx"
3000 libwavpack_encoder_deps="libwavpack"
3001 libwavpack_encoder_select="audio_frame_queue"
3002 libwebp_encoder_deps="libwebp"
3003 libwebp_anim_encoder_deps="libwebp"
3004 libx262_encoder_deps="libx262"
3005 libx264_encoder_deps="libx264"
3006 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3007 libx264rgb_encoder_select="libx264_encoder"
3008 libx265_encoder_deps="libx265"
3009 libxavs_encoder_deps="libxavs"
3010 libxvid_encoder_deps="libxvid"
3011 libzvbi_teletext_decoder_deps="libzvbi"
3012 videotoolbox_suggest="coreservices"
3013 videotoolbox_deps="corefoundation coremedia corevideo"
3014 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3015 videotoolbox_encoder_suggest="vda_framework"
3016
3017 # demuxers / muxers
3018 ac3_demuxer_select="ac3_parser"
3019 aiff_muxer_select="iso_media"
3020 asf_demuxer_select="riffdec"
3021 asf_o_demuxer_select="riffdec"
3022 asf_muxer_select="riffenc"
3023 asf_stream_muxer_select="asf_muxer"
3024 avi_demuxer_select="iso_media riffdec exif"
3025 avi_muxer_select="riffenc"
3026 caf_demuxer_select="iso_media riffdec"
3027 caf_muxer_select="iso_media"
3028 dash_muxer_select="mp4_muxer"
3029 dash_demuxer_deps="libxml2"
3030 dirac_demuxer_select="dirac_parser"
3031 dts_demuxer_select="dca_parser"
3032 dtshd_demuxer_select="dca_parser"
3033 dv_demuxer_select="dvprofile"
3034 dv_muxer_select="dvprofile"
3035 dxa_demuxer_select="riffdec"
3036 eac3_demuxer_select="ac3_parser"
3037 f4v_muxer_select="mov_muxer"
3038 fifo_muxer_deps="threads"
3039 flac_demuxer_select="flac_parser"
3040 hds_muxer_select="flv_muxer"
3041 hls_muxer_select="mpegts_muxer"
3042 hls_muxer_suggest="gcrypt openssl"
3043 image2_alias_pix_demuxer_select="image2_demuxer"
3044 image2_brender_pix_demuxer_select="image2_demuxer"
3045 ipod_muxer_select="mov_muxer"
3046 ismv_muxer_select="mov_muxer"
3047 matroska_audio_muxer_select="matroska_muxer"
3048 matroska_demuxer_select="iso_media riffdec"
3049 matroska_demuxer_suggest="bzlib lzo zlib"
3050 matroska_muxer_select="iso_media riffenc"
3051 mmf_muxer_select="riffenc"
3052 mov_demuxer_select="iso_media riffdec"
3053 mov_demuxer_suggest="zlib"
3054 mov_muxer_select="iso_media riffenc rtpenc_chain"
3055 mp3_demuxer_select="mpegaudio_parser"
3056 mp3_muxer_select="mpegaudioheader"
3057 mp4_muxer_select="mov_muxer"
3058 mpegts_demuxer_select="iso_media"
3059 mpegts_muxer_select="adts_muxer latm_muxer"
3060 mpegtsraw_demuxer_select="mpegts_demuxer"
3061 mxf_d10_muxer_select="mxf_muxer"
3062 mxf_opatom_muxer_select="mxf_muxer"
3063 nut_muxer_select="riffenc"
3064 nuv_demuxer_select="riffdec"
3065 oga_muxer_select="ogg_muxer"
3066 ogg_demuxer_select="dirac_parse"
3067 ogv_muxer_select="ogg_muxer"
3068 opus_muxer_select="ogg_muxer"
3069 psp_muxer_select="mov_muxer"
3070 rtp_demuxer_select="sdp_demuxer"
3071 rtp_muxer_select="golomb"
3072 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3073 rtsp_demuxer_select="http_protocol rtpdec"
3074 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3075 sap_demuxer_select="sdp_demuxer"
3076 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3077 sdp_demuxer_select="rtpdec"
3078 smoothstreaming_muxer_select="ismv_muxer"
3079 spdif_muxer_select="aac_parser"
3080 spx_muxer_select="ogg_muxer"
3081 swf_demuxer_suggest="zlib"
3082 tak_demuxer_select="tak_parser"
3083 tg2_muxer_select="mov_muxer"
3084 tgp_muxer_select="mov_muxer"
3085 vobsub_demuxer_select="mpegps_demuxer"
3086 w64_demuxer_select="wav_demuxer"
3087 w64_muxer_select="wav_muxer"
3088 wav_demuxer_select="riffdec"
3089 wav_muxer_select="riffenc"
3090 webm_muxer_select="iso_media riffenc"
3091 webm_dash_manifest_demuxer_select="matroska_demuxer"
3092 wtv_demuxer_select="mpegts_demuxer riffdec"
3093 wtv_muxer_select="mpegts_muxer riffenc"
3094 xmv_demuxer_select="riffdec"
3095 xwma_demuxer_select="riffdec"
3096
3097 # indevs / outdevs
3098 alsa_indev_deps="alsa"
3099 alsa_outdev_deps="alsa"
3100 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3101 avfoundation_indev_suggest="coregraphics applicationservices"
3102 avfoundation_indev_extralibs="-framework Foundation"
3103 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3104 caca_outdev_deps="libcaca"
3105 decklink_deps_any="libdl LoadLibrary"
3106 decklink_indev_deps="decklink threads"
3107 decklink_indev_extralibs="-lstdc++"
3108 decklink_outdev_deps="decklink threads"
3109 decklink_outdev_extralibs="-lstdc++"
3110 libndi_newtek_indev_deps="libndi_newtek"
3111 libndi_newtek_indev_extralibs="-lndi"
3112 libndi_newtek_outdev_deps="libndi_newtek"
3113 libndi_newtek_outdev_extralibs="-lndi"
3114 dshow_indev_deps="IBaseFilter"
3115 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3116 fbdev_indev_deps="linux_fb_h"
3117 fbdev_outdev_deps="linux_fb_h"
3118 gdigrab_indev_deps="CreateDIBSection"
3119 gdigrab_indev_extralibs="-lgdi32"
3120 gdigrab_indev_select="bmp_decoder"
3121 iec61883_indev_deps="libiec61883"
3122 jack_indev_deps="jack"
3123 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3124 kmsgrab_indev_deps="libdrm"
3125 lavfi_indev_deps="avfilter"
3126 libcdio_indev_deps="libcdio"
3127 libdc1394_indev_deps="libdc1394"
3128 openal_indev_deps="openal"
3129 opengl_outdev_deps="opengl"
3130 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3131 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3132 pulse_indev_deps="libpulse"
3133 pulse_outdev_deps="libpulse"
3134 sdl2_outdev_deps="sdl2"
3135 sndio_indev_deps="sndio"
3136 sndio_outdev_deps="sndio"
3137 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3138 v4l2_indev_suggest="libv4l2"
3139 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3140 v4l2_outdev_suggest="libv4l2"
3141 vfwcap_indev_deps="vfw32 vfwcap_defines"
3142 xcbgrab_indev_deps="libxcb"
3143 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3144 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3145 xv_outdev_extralibs="-lXv -lX11 -lXext"
3146
3147 # protocols
3148 async_protocol_deps="threads"
3149 bluray_protocol_deps="libbluray"
3150 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3151 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3152 ffrtmpcrypt_protocol_select="tcp_protocol"
3153 ffrtmphttp_protocol_conflict="librtmp_protocol"
3154 ffrtmphttp_protocol_select="http_protocol"
3155 ftp_protocol_select="tcp_protocol"
3156 gopher_protocol_select="network"
3157 http_protocol_select="tcp_protocol"
3158 http_protocol_suggest="zlib"
3159 httpproxy_protocol_select="tcp_protocol"
3160 httpproxy_protocol_suggest="zlib"
3161 https_protocol_select="tls_protocol"
3162 https_protocol_suggest="zlib"
3163 icecast_protocol_select="http_protocol"
3164 librtmp_protocol_deps="librtmp"
3165 librtmpe_protocol_deps="librtmp"
3166 librtmps_protocol_deps="librtmp"
3167 librtmpt_protocol_deps="librtmp"
3168 librtmpte_protocol_deps="librtmp"
3169 libsmbclient_protocol_deps="libsmbclient gplv3"
3170 libssh_protocol_deps="libssh"
3171 mmsh_protocol_select="http_protocol"
3172 mmst_protocol_select="network"
3173 rtmp_protocol_conflict="librtmp_protocol"
3174 rtmp_protocol_select="tcp_protocol"
3175 rtmp_protocol_suggest="zlib"
3176 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3177 rtmpe_protocol_suggest="zlib"
3178 rtmps_protocol_conflict="librtmp_protocol"
3179 rtmps_protocol_select="tls_protocol"
3180 rtmps_protocol_suggest="zlib"
3181 rtmpt_protocol_select="ffrtmphttp_protocol"
3182 rtmpt_protocol_suggest="zlib"
3183 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3184 rtmpte_protocol_suggest="zlib"
3185 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3186 rtmpts_protocol_suggest="zlib"
3187 rtp_protocol_select="udp_protocol"
3188 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3189 sctp_protocol_select="network"
3190 srtp_protocol_select="rtp_protocol srtp"
3191 tcp_protocol_select="network"
3192 tls_gnutls_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol"
3193 tls_gnutls_protocol_deps="gnutls"
3194 tls_gnutls_protocol_select="tcp_protocol"
3195 tls_openssl_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol"
3196 tls_openssl_protocol_deps="openssl"
3197 tls_openssl_protocol_select="tcp_protocol"
3198 tls_schannel_protocol_deps="schannel"
3199 tls_schannel_protocol_select="tcp_protocol"
3200 tls_securetransport_protocol_deps="securetransport"
3201 tls_securetransport_protocol_select="tcp_protocol"
3202 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3203 udp_protocol_select="network"
3204 udplite_protocol_select="network"
3205 unix_protocol_deps="sys_un_h"
3206 unix_protocol_select="network"
3207
3208 # filters
3209 afftfilt_filter_deps="avcodec"
3210 afftfilt_filter_select="fft"
3211 afir_filter_deps="avcodec"
3212 afir_filter_select="fft"
3213 amovie_filter_deps="avcodec avformat"
3214 aresample_filter_deps="swresample"
3215 ass_filter_deps="libass"
3216 atempo_filter_deps="avcodec"
3217 atempo_filter_select="rdft"
3218 azmq_filter_deps="libzmq"
3219 blackframe_filter_deps="gpl"
3220 boxblur_filter_deps="gpl"
3221 bs2b_filter_deps="libbs2b"
3222 colormatrix_filter_deps="gpl"
3223 coreimage_filter_deps="coreimage appkit"
3224 coreimage_filter_extralibs="-framework OpenGL"
3225 coreimagesrc_filter_deps="coreimage appkit"
3226 coreimagesrc_filter_extralibs="-framework OpenGL"
3227 cover_rect_filter_deps="avcodec avformat gpl"
3228 cropdetect_filter_deps="gpl"
3229 deinterlace_qsv_filter_deps="libmfx"
3230 deinterlace_vaapi_filter_deps="vaapi"
3231 delogo_filter_deps="gpl"
3232 deshake_filter_select="pixelutils"
3233 deshake_filter_suggest="opencl"
3234 drawtext_filter_deps="libfreetype"
3235 drawtext_filter_suggest="libfontconfig libfribidi"
3236 elbg_filter_deps="avcodec"
3237 eq_filter_deps="gpl"
3238 fftfilt_filter_deps="avcodec"
3239 fftfilt_filter_select="rdft"
3240 find_rect_filter_deps="avcodec avformat gpl"
3241 firequalizer_filter_deps="avcodec"
3242 firequalizer_filter_select="rdft"
3243 flite_filter_deps="libflite"
3244 framerate_filter_select="pixelutils"
3245 frei0r_filter_deps="frei0r libdl"
3246 frei0r_src_filter_deps="frei0r libdl"
3247 fspp_filter_deps="gpl"
3248 geq_filter_deps="gpl"
3249 histeq_filter_deps="gpl"
3250 hqdn3d_filter_deps="gpl"
3251 interlace_filter_deps="gpl"
3252 kerndeint_filter_deps="gpl"
3253 ladspa_filter_deps="ladspa libdl"
3254 mcdeint_filter_deps="avcodec gpl"
3255 movie_filter_deps="avcodec avformat"
3256 mpdecimate_filter_deps="gpl"
3257 mpdecimate_filter_select="pixelutils"
3258 mptestsrc_filter_deps="gpl"
3259 negate_filter_deps="lut_filter"
3260 nnedi_filter_deps="gpl"
3261 ocr_filter_deps="libtesseract"
3262 ocv_filter_deps="libopencv"
3263 owdenoise_filter_deps="gpl"
3264 pan_filter_deps="swresample"
3265 perspective_filter_deps="gpl"
3266 phase_filter_deps="gpl"
3267 pp7_filter_deps="gpl"
3268 pp_filter_deps="gpl postproc"
3269 pullup_filter_deps="gpl"
3270 removelogo_filter_deps="avcodec avformat swscale"
3271 repeatfields_filter_deps="gpl"
3272 resample_filter_deps="avresample"
3273 rubberband_filter_deps="librubberband"
3274 sab_filter_deps="gpl swscale"
3275 scale2ref_filter_deps="swscale"
3276 scale_filter_deps="swscale"
3277 scale_qsv_filter_deps="libmfx"
3278 select_filter_select="pixelutils"
3279 showcqt_filter_deps="avcodec avformat swscale"
3280 showcqt_filter_suggest="libfontconfig libfreetype"
3281 showcqt_filter_select="fft"
3282 showfreqs_filter_deps="avcodec"
3283 showfreqs_filter_select="fft"
3284 showspectrum_filter_deps="avcodec"
3285 showspectrum_filter_select="fft"
3286 showspectrumpic_filter_deps="avcodec"
3287 showspectrumpic_filter_select="fft"
3288 signature_filter_deps="gpl avcodec avformat"
3289 smartblur_filter_deps="gpl swscale"
3290 sofalizer_filter_deps="libmysofa avcodec"
3291 sofalizer_filter_select="fft"
3292 spectrumsynth_filter_deps="avcodec"
3293 spectrumsynth_filter_select="fft"
3294 spp_filter_deps="gpl avcodec"
3295 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3296 stereo3d_filter_deps="gpl"
3297 subtitles_filter_deps="avformat avcodec libass"
3298 super2xsai_filter_deps="gpl"
3299 pixfmts_super2xsai_test_deps="super2xsai_filter"
3300 tinterlace_filter_deps="gpl"
3301 tinterlace_merge_test_deps="tinterlace_filter"
3302 tinterlace_pad_test_deps="tinterlace_filter"
3303 tonemap_filter_deps="const_nan"
3304 uspp_filter_deps="gpl avcodec"
3305 unsharp_filter_suggest="opencl"
3306 vaguedenoiser_filter_deps="gpl"
3307 vidstabdetect_filter_deps="libvidstab"
3308 vidstabtransform_filter_deps="libvidstab"
3309 libvmaf_filter_deps="libvmaf"
3310 zmq_filter_deps="libzmq"
3311 zoompan_filter_deps="swscale"
3312 zscale_filter_deps="libzimg const_nan"
3313 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3314
3315 # examples
3316 avio_dir_cmd_deps="avformat avutil"
3317 avio_reading_deps="avformat avcodec avutil"
3318 decode_audio_example_deps="avcodec avutil"
3319 decode_video_example_deps="avcodec avutil"
3320 demuxing_decoding_example_deps="avcodec avformat avutil"
3321 encode_audio_example_deps="avcodec avutil"
3322 encode_video_example_deps="avcodec avutil"
3323 extract_mvs_example_deps="avcodec avformat avutil"
3324 filter_audio_example_deps="avfilter avutil"
3325 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3326 filtering_video_example_deps="avfilter avcodec avformat avutil"
3327 http_multiclient_example_deps="avformat avutil fork"
3328 hw_decode_example_deps="avcodec avformat avutil"
3329 metadata_example_deps="avformat avutil"
3330 muxing_example_deps="avcodec avformat avutil swscale"
3331 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3332 remuxing_example_deps="avcodec avformat avutil"
3333 resampling_audio_example_deps="avutil swresample"
3334 scaling_video_example_deps="avutil swscale"
3335 transcode_aac_example_deps="avcodec avformat swresample"
3336 transcoding_example_deps="avfilter avcodec avformat avutil"
3337
3338 # EXTRALIBS_LIST
3339 cpu_init_extralibs="pthreads_extralibs"
3340 cws2fws_extralibs="zlib_extralibs"
3341
3342 # libraries, in linking order
3343 avcodec_deps="avutil"
3344 avcodec_suggest="libm"
3345 avcodec_select="null_bsf"
3346 avdevice_deps="avformat avcodec avutil"
3347 avdevice_suggest="libm"
3348 avfilter_deps="avutil"
3349 avfilter_suggest="libm"
3350 avformat_deps="avcodec avutil"
3351 avformat_suggest="libm network"
3352 avresample_deps="avutil"
3353 avresample_suggest="libm"
3354 avutil_suggest="clock_gettime libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3355 postproc_deps="avutil gpl"
3356 postproc_suggest="libm"
3357 swresample_deps="avutil"
3358 swresample_suggest="libm libsoxr"
3359 swscale_deps="avutil"
3360 swscale_suggest="libm"
3361
3362 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3363 avfilter_extralibs="pthreads_extralibs"
3364 avutil_extralibs="nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3365
3366 # programs
3367 ffmpeg_deps="avcodec avfilter avformat swresample"
3368 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3369                null_filter
3370                trim_filter"
3371 ffmpeg_suggest="ole32 psapi shell32"
3372 ffplay_deps="avcodec avformat swscale swresample sdl2"
3373 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3374 ffplay_suggest="shell32"
3375 ffprobe_deps="avcodec avformat"
3376 ffprobe_suggest="shell32"
3377 ffserver_deps="avformat fork sarestart"
3378 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3379
3380 # documentation
3381 podpages_deps="perl"
3382 manpages_deps="perl pod2man"
3383 htmlpages_deps="perl"
3384 htmlpages_deps_any="makeinfo_html texi2html"
3385 txtpages_deps="perl makeinfo"
3386 doc_deps_any="manpages htmlpages podpages txtpages"
3387
3388 # default parameters
3389
3390 logfile="ffbuild/config.log"
3391
3392 # installation paths
3393 prefix_default="/usr/local"
3394 bindir_default='${prefix}/bin'
3395 datadir_default='${prefix}/share/ffmpeg'
3396 docdir_default='${prefix}/share/doc/ffmpeg'
3397 incdir_default='${prefix}/include'
3398 libdir_default='${prefix}/lib'
3399 mandir_default='${prefix}/share/man'
3400
3401 # toolchain
3402 ar_default="ar"
3403 cc_default="gcc"
3404 cxx_default="g++"
3405 host_cc_default="gcc"
3406 doxygen_default="doxygen"
3407 install="install"
3408 ln_s_default="ln -s -f"
3409 nm_default="nm -g"
3410 pkg_config_default=pkg-config
3411 ranlib_default="ranlib"
3412 strip_default="strip"
3413 version_script='--version-script'
3414 x86asmexe_default="nasm"
3415 windres_default="windres"
3416 nvcc_default="nvcc"
3417 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3418 striptype="direct"
3419
3420 # OS
3421 target_os_default=$(tolower $(uname -s))
3422 host_os=$target_os_default
3423
3424 # machine
3425 if test "$target_os_default" = aix; then
3426     arch_default=$(uname -p)
3427     strip_default="strip -X32_64"
3428 else
3429     arch_default=$(uname -m)
3430 fi
3431 cpu="generic"
3432 intrinsics="none"
3433
3434 # configurable options
3435 enable $PROGRAM_LIST
3436 enable $DOCUMENT_LIST
3437 enable $EXAMPLE_LIST
3438 enable $(filter_out avresample $LIBRARY_LIST)
3439 enable stripping
3440
3441 enable asm
3442 enable debug
3443 enable doc
3444 enable faan faandct faanidct
3445 enable optimizations
3446 enable runtime_cpudetect
3447 enable safe_bitstream_reader
3448 enable static
3449 enable swscale_alpha
3450 enable valgrind_backtrace
3451
3452 sws_max_filter_size_default=256
3453 set_default sws_max_filter_size
3454
3455 # internal components are enabled by default
3456 enable $EXTRALIBS_LIST
3457
3458 # Avoid external, non-system, libraries getting enabled by dependency resolution
3459 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3460
3461 # build settings
3462 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3463 LIBPREF="lib"
3464 LIBSUF=".a"
3465 FULLNAME='$(NAME)$(BUILDSUF)'
3466 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3467 SLIBPREF="lib"
3468 SLIBSUF=".so"
3469 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3470 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3471 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3472 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3473 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3474 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3475 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3476
3477 asflags_filter=echo
3478 cflags_filter=echo
3479 ldflags_filter=echo
3480
3481 AS_C='-c'
3482 AS_O='-o $@'
3483 CC_C='-c'
3484 CC_E='-E -o $@'
3485 CC_O='-o $@'
3486 CXX_C='-c'
3487 CXX_O='-o $@'
3488 OBJCC_C='-c'
3489 OBJCC_E='-E -o $@'
3490 OBJCC_O='-o $@'
3491 X86ASM_O='-o $@'
3492 LD_O='-o $@'
3493 LD_LIB='-l%'
3494 LD_PATH='-L'
3495 HOSTCC_C='-c'
3496 HOSTCC_E='-E -o $@'
3497 HOSTCC_O='-o $@'
3498 HOSTLD_O='-o $@'
3499 NVCC_C='-c'
3500 NVCC_O='-o $@'
3501
3502 host_extralibs='-lm'
3503 host_cflags_filter=echo
3504 host_ldflags_filter=echo
3505
3506 target_path='$(CURDIR)'
3507
3508 # since the object filename is not given with the -MM flag, the compiler
3509 # is only able to print the basename, and we must add the path ourselves
3510 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3511 DEPFLAGS='-MM'
3512
3513 mkdir -p ffbuild
3514
3515 # find source path
3516 if test -f configure; then
3517     source_path=.
3518 else
3519     source_path=$(cd $(dirname "$0"); pwd)
3520     case "$source_path" in
3521         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3522     esac
3523     test -e "$source_path/config.h" &&
3524         die "Out of tree builds are impossible with config.h in source dir."
3525 fi
3526
3527 for v in "$@"; do
3528     r=${v#*=}
3529     l=${v%"$r"}
3530     r=$(sh_quote "$r")
3531     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3532 done
3533
3534 find_things(){
3535     thing=$1
3536     pattern=$2
3537     file=$source_path/$3
3538     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3539 }
3540
3541 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3542 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3543 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3544 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3545 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3546 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3547 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3548 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3549 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3550
3551 find_things_extern(){
3552     thing=$1
3553     pattern=$2
3554     file=$source_path/$3
3555     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3556 }
3557
3558 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3559 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3560
3561 AVCODEC_COMPONENTS_LIST="
3562     $BSF_LIST
3563     $DECODER_LIST
3564     $ENCODER_LIST
3565     $HWACCEL_LIST
3566     $PARSER_LIST
3567 "
3568
3569 AVDEVICE_COMPONENTS_LIST="
3570     $INDEV_LIST
3571     $OUTDEV_LIST
3572 "
3573
3574 AVFILTER_COMPONENTS_LIST="
3575     $FILTER_LIST
3576 "
3577
3578 AVFORMAT_COMPONENTS_LIST="
3579     $DEMUXER_LIST
3580     $MUXER_LIST
3581     $PROTOCOL_LIST
3582 "
3583
3584 ALL_COMPONENTS="
3585     $AVCODEC_COMPONENTS_LIST
3586     $AVDEVICE_COMPONENTS_LIST
3587     $AVFILTER_COMPONENTS_LIST
3588     $AVFORMAT_COMPONENTS_LIST
3589 "
3590
3591 for n in $COMPONENT_LIST; do
3592     v=$(toupper ${n%s})_LIST
3593     eval enable \$$v
3594     eval ${n}_if_any="\$$v"
3595 done
3596
3597 enable $ARCH_EXT_LIST
3598
3599 die_unknown(){
3600     echo "Unknown option \"$1\"."
3601     echo "See $0 --help for available options."
3602     exit 1
3603 }
3604
3605 print_in_columns() {
3606     cols=$(expr $ncols / 24)
3607     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3608 }
3609
3610 show_list() {
3611     suffix=_$1
3612     shift
3613     echo $* | sed s/$suffix//g | print_in_columns
3614     exit 0
3615 }
3616
3617 rand_list(){
3618     IFS=', '
3619     set -- $*
3620     unset IFS
3621     for thing; do
3622         comp=${thing%:*}
3623         prob=${thing#$comp}
3624         prob=${prob#:}
3625         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3626         echo "prob ${prob:-0.5}"
3627         printf '%s\n' $comp
3628     done
3629 }
3630
3631 do_random(){
3632     action=$1
3633     shift
3634     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3635     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3636 }
3637
3638 for opt do
3639     optval="${opt#*=}"
3640     case "$opt" in
3641         --extra-ldflags=*)
3642             add_ldflags $optval
3643         ;;
3644         --extra-ldexeflags=*)
3645             add_ldexeflags $optval
3646         ;;
3647         --extra-ldlibflags=*)
3648             add_ldlibflags $optval
3649         ;;
3650         --extra-libs=*)
3651             add_extralibs $optval
3652         ;;
3653         --disable-devices)
3654             disable $INDEV_LIST $OUTDEV_LIST
3655         ;;
3656         --enable-debug=*)
3657             debuglevel="$optval"
3658         ;;
3659         --disable-programs)
3660             disable $PROGRAM_LIST
3661         ;;
3662         --disable-everything)
3663             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3664         ;;
3665         --disable-all)
3666             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3667             disable $LIBRARY_LIST $PROGRAM_LIST doc
3668             enable avutil
3669         ;;
3670         --enable-random|--disable-random)
3671             action=${opt%%-random}
3672             do_random ${action#--} $COMPONENT_LIST
3673         ;;
3674         --enable-random=*|--disable-random=*)
3675             action=${opt%%-random=*}
3676             do_random ${action#--} $optval
3677         ;;
3678         --enable-sdl)
3679             enable sdl2
3680         ;;
3681         --enable-*=*|--disable-*=*)
3682             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3683             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3684             eval list=\$$(toupper $thing)_LIST
3685             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3686             list=$(filter "$name" $list)
3687             [ "$list" = "" ] && warn "Option $opt did not match anything"
3688             $action $list
3689         ;;
3690         --enable-yasm|--disable-yasm)
3691             warn "The ${opt} option is only provided for compatibility and will be\n"\
3692                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3693             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3694         ;;
3695         --yasmexe=*)
3696             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3697                  "removed in the future. Use --x86asmexe instead."
3698             x86asmexe="$optval"
3699         ;;
3700         --enable-?*|--disable-?*)
3701             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3702             if is_in $option $COMPONENT_LIST; then
3703                 test $action = disable && action=unset
3704                 eval $action \$$(toupper ${option%s})_LIST
3705             elif is_in $option $CMDLINE_SELECT; then
3706                 $action $option
3707             else
3708                 die_unknown $opt
3709             fi
3710         ;;
3711         --list-*)
3712             NAME="${opt#--list-}"
3713             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3714             NAME=${NAME%s}
3715             eval show_list $NAME \$$(toupper $NAME)_LIST
3716         ;;
3717         --help|-h) show_help
3718         ;;
3719         --quiet|-q) quiet=yes
3720         ;;
3721         --fatal-warnings) enable fatal_warnings
3722         ;;
3723         --libfuzzer=*)
3724             libfuzzer_path="$optval"
3725         ;;
3726         *)
3727             optname="${opt%%=*}"
3728             optname="${optname#--}"
3729             optname=$(echo "$optname" | sed 's/-/_/g')
3730             if is_in $optname $CMDLINE_SET; then
3731                 eval $optname='$optval'
3732             elif is_in $optname $CMDLINE_APPEND; then
3733                 append $optname "$optval"
3734             else
3735                 die_unknown $opt
3736             fi
3737         ;;
3738     esac
3739 done
3740
3741 for e in $env; do
3742     eval "export $e"
3743 done
3744
3745 if disabled autodetect; then
3746
3747     # Unless iconv is explicitely disabled by the user, we still want to probe
3748     # for the iconv from the libc.
3749     disabled iconv || enable libc_iconv
3750
3751     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3752     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3753 fi
3754 # Mark specifically enabled, but normally autodetected libraries as requested.
3755 for lib in $AUTODETECT_LIBS; do
3756     enabled $lib && request $lib
3757 done
3758 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3759 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3760 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3761
3762 disabled logging && logfile=/dev/null
3763
3764 die_license_disabled() {
3765     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3766 }
3767
3768 die_license_disabled_gpl() {
3769     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3770 }
3771
3772 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3773 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3774
3775 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3776 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3777
3778 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3779
3780 # Disable all the library-specific components if the library itself
3781 # is disabled, see AVCODEC_LIST and following _LIST variables.
3782
3783 disable_components(){
3784     disabled ${1} && disable $(
3785         eval components="\$$(toupper ${1})_COMPONENTS"
3786         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3787     )
3788 }
3789
3790 map 'disable_components $v' $LIBRARY_LIST
3791
3792 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3793 set >> $logfile
3794
3795 test -n "$valgrind" && toolchain="valgrind-memcheck"
3796
3797 enabled ossfuzz && {
3798     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3799     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3800 }
3801
3802 case "$toolchain" in
3803     *-asan)
3804         cc_default="${toolchain%-asan}"
3805         add_cflags  -fsanitize=address
3806         add_ldflags -fsanitize=address
3807     ;;
3808     *-msan)
3809         cc_default="${toolchain%-msan}"
3810         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3811         add_ldflags -fsanitize=memory
3812     ;;
3813     *-tsan)
3814         cc_default="${toolchain%-tsan}"
3815         add_cflags  -fsanitize=thread -fPIE
3816         add_ldflags -fsanitize=thread -pie
3817         case "$toolchain" in
3818             gcc-tsan)
3819                 add_cflags  -fPIC
3820                 add_ldflags -fPIC
3821                 ;;
3822         esac
3823     ;;
3824     *-usan)
3825         cc_default="${toolchain%-usan}"
3826         add_cflags  -fsanitize=undefined
3827         add_ldflags -fsanitize=undefined
3828     ;;
3829     valgrind-*)
3830         target_exec_default="valgrind"
3831         case "$toolchain" in
3832             valgrind-massif)
3833                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3834                 ;;
3835             valgrind-memcheck)
3836                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3837                 ;;
3838         esac
3839     ;;
3840     msvc)
3841         # Check whether the current MSVC version needs the C99 converter.
3842         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3843         # support enough of C99 to build ffmpeg. Default to the new
3844         # behaviour if the regexp was unable to match anything, since this
3845         # successfully parses the version number of existing supported
3846         # versions that require the converter (MSVC 2010 and 2012).
3847         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3848         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3849             cc_default="cl"
3850             cxx_default="cl"
3851         else
3852             cc_default="c99wrap cl"
3853             cxx_default="c99wrap cl"
3854         fi
3855         ld_default="$source_path/compat/windows/mslink"
3856         nm_default="dumpbin -symbols"
3857         ar_default="lib"
3858         case "$arch" in
3859         arm*)
3860             as_default="armasm"
3861             ;;
3862         esac
3863         target_os_default="win32"
3864         # Use a relative path for TMPDIR. This makes sure all the
3865         # ffconf temp files are written with a relative path, avoiding
3866         # issues with msys/win32 path conversion for MSVC parameters
3867         # such as -Fo<file> or -out:<file>.
3868         TMPDIR=.
3869     ;;
3870     icl)
3871         cc_default="icl"
3872         ld_default="xilink"
3873         nm_default="dumpbin -symbols"
3874         ar_default="xilib"
3875         target_os_default="win32"
3876         TMPDIR=.
3877     ;;
3878     gcov)
3879         add_cflags  -fprofile-arcs -ftest-coverage
3880         add_ldflags -fprofile-arcs -ftest-coverage
3881     ;;
3882     llvm-cov)
3883         add_cflags -fprofile-arcs -ftest-coverage
3884         add_ldflags --coverage
3885     ;;
3886     hardened)
3887         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3888         add_cflags   -fno-strict-overflow -fstack-protector-all
3889         add_ldflags  -Wl,-z,relro -Wl,-z,now
3890         add_cflags   -fPIE
3891         add_ldexeflags -fPIE -pie
3892     ;;
3893     ?*)
3894         die "Unknown toolchain $toolchain"
3895     ;;
3896 esac
3897
3898 test -n "$cross_prefix" && enable cross_compile
3899
3900 if enabled cross_compile; then
3901     test -n "$arch" && test -n "$target_os" ||
3902         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3903 fi
3904
3905 ar_default="${cross_prefix}${ar_default}"
3906 cc_default="${cross_prefix}${cc_default}"
3907 cxx_default="${cross_prefix}${cxx_default}"
3908 nm_default="${cross_prefix}${nm_default}"
3909 pkg_config_default="${cross_prefix}${pkg_config_default}"
3910 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3911     ranlib_default="${cross_prefix}${ranlib_default} -D"
3912 else
3913     ranlib_default="${cross_prefix}${ranlib_default}"
3914 fi
3915 strip_default="${cross_prefix}${strip_default}"
3916 windres_default="${cross_prefix}${windres_default}"
3917
3918 sysinclude_default="${sysroot}/usr/include"
3919
3920 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3921     target_exec target_os x86asmexe nvcc
3922 enabled cross_compile || host_cc_default=$cc
3923 set_default host_cc
3924
3925 pkg_config_fail_message=""
3926 if ! $pkg_config --version >/dev/null 2>&1; then
3927     warn "$pkg_config not found, library detection may fail."
3928     pkg_config=false
3929 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3930     pkg_config_fail_message="
3931 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3932 fi
3933
3934 if test $doxygen != $doxygen_default && \
3935   ! $doxygen --version >/dev/null 2>&1; then
3936     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3937 fi
3938
3939 exesuf() {
3940     case $1 in
3941         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3942     esac
3943 }
3944
3945 EXESUF=$(exesuf $target_os)
3946 HOSTEXESUF=$(exesuf $host_os)
3947
3948 # set temporary file name
3949 : ${TMPDIR:=$TEMPDIR}
3950 : ${TMPDIR:=$TMP}
3951 : ${TMPDIR:=/tmp}
3952
3953 if [ -n "$tempprefix" ] ; then
3954     mktemp(){
3955         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3956         echo "$tmpname"
3957         mkdir "$tmpname"
3958     }
3959 elif ! check_cmd mktemp -u XXXXXX; then
3960     # simple replacement for missing mktemp
3961     # NOT SAFE FOR GENERAL USE
3962     mktemp(){
3963         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3964         echo "$tmpname"
3965         mkdir "$tmpname"
3966     }
3967 fi
3968
3969 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3970     die "Unable to create temporary directory in $TMPDIR."
3971
3972 tmpfile(){
3973     tmp="${FFTMPDIR}/test"$2
3974     (set -C; exec > $tmp) 2> /dev/null ||
3975         die "Unable to create temporary file in $FFTMPDIR."
3976     eval $1=$tmp
3977 }
3978
3979 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3980 trap 'exit 2' INT
3981
3982 tmpfile TMPASM .asm
3983 tmpfile TMPC   .c
3984 tmpfile TMPCPP .cpp
3985 tmpfile TMPE   $EXESUF
3986 tmpfile TMPH   .h
3987 tmpfile TMPM   .m
3988 tmpfile TMPO   .o
3989 tmpfile TMPS   .S
3990 tmpfile TMPSH  .sh
3991 tmpfile TMPV   .ver
3992
3993 unset -f mktemp
3994
3995 chmod +x $TMPE
3996
3997 # make sure we can execute files in $TMPDIR
3998 cat > $TMPSH 2>> $logfile <<EOF
3999 #! /bin/sh
4000 EOF
4001 chmod +x $TMPSH >> $logfile 2>&1
4002 if ! $TMPSH >> $logfile 2>&1; then
4003     cat <<EOF
4004 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4005 variable to another directory and make sure that it is not mounted noexec.
4006 EOF
4007     die "Sanity test failed."
4008 fi
4009
4010 armasm_flags(){
4011     for flag; do
4012         case $flag in
4013             # Filter out MSVC cl.exe options from cflags that shouldn't
4014             # be passed to gas-preprocessor
4015             -M[TD]*)                                            ;;
4016             *)                  echo $flag                      ;;
4017         esac
4018    done
4019 }
4020
4021 ccc_flags(){
4022     for flag; do
4023         case $flag in
4024             -std=c99)           echo -c99                       ;;
4025             -mcpu=*)            echo -arch ${flag#*=}           ;;
4026             -mieee)             echo -ieee                      ;;
4027             -O*|-fast)          echo $flag                      ;;
4028             -fno-math-errno)    echo -assume nomath_errno       ;;
4029             -g)                 echo -g3                        ;;
4030             -Wall)              echo -msg_enable level2         ;;
4031             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
4032             -Wl,*)              echo $flag                      ;;
4033             -f*|-W*)                                            ;;
4034             *)                  echo $flag                      ;;
4035         esac
4036    done
4037 }
4038
4039 cparser_flags(){
4040     for flag; do
4041         case $flag in
4042             -Wno-switch)             echo -Wno-switch-enum ;;
4043             -Wno-format-zero-length) ;;
4044             -Wdisabled-optimization) ;;
4045             -Wno-pointer-sign)       echo -Wno-other ;;
4046             *)                       echo $flag ;;
4047         esac
4048     done
4049 }
4050
4051 msvc_common_flags(){
4052     for flag; do
4053         case $flag in
4054             # In addition to specifying certain flags under the compiler
4055             # specific filters, they must be specified here as well or else the
4056             # generic catch all at the bottom will print the original flag.
4057             -Wall)                ;;
4058             -Wextra)              ;;
4059             -std=c99)             ;;
4060             # Common flags
4061             -fomit-frame-pointer) ;;
4062             -g)                   echo -Z7 ;;
4063             -fno-math-errno)      ;;
4064             -fno-common)          ;;
4065             -fno-signed-zeros)    ;;
4066             -fPIC)                ;;
4067             -mthumb)              ;;
4068             -march=*)             ;;
4069             -lz)                  echo zlib.lib ;;
4070             -lx264)               echo libx264.lib ;;
4071             -lstdc++)             ;;
4072             -l*)                  echo ${flag#-l}.lib ;;
4073             -LARGEADDRESSAWARE)   echo $flag ;;
4074             -L*)                  echo -libpath:${flag#-L} ;;
4075             *)                    echo $flag ;;
4076         esac
4077     done
4078 }
4079
4080 msvc_flags(){
4081     msvc_common_flags "$@"
4082     for flag; do
4083         case $flag in
4084             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4085                                        -wd4554 ;;
4086             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4087                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4088                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4089                                        -wd4307 \
4090                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4091         esac
4092     done
4093 }
4094
4095 icl_flags(){
4096     msvc_common_flags "$@"
4097     for flag; do
4098         case $flag in
4099             # Despite what Intel's documentation says -Wall, which is supported
4100             # on Windows, does enable remarks so disable them here.
4101             -Wall)                echo $flag -Qdiag-disable:remark ;;
4102             -std=c99)             echo -Qstd=c99 ;;
4103             -flto)                echo -ipo ;;
4104         esac
4105     done
4106 }
4107
4108 icc_flags(){
4109     for flag; do
4110         case $flag in
4111             -flto)                echo -ipo ;;
4112             *)                    echo $flag ;;
4113         esac
4114     done
4115 }
4116
4117 pgi_flags(){
4118     for flag; do
4119         case $flag in
4120             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
4121             -fomit-frame-pointer) echo -Mnoframe ;;
4122             -g)                   echo -gopt ;;
4123             *)                    echo $flag ;;
4124         esac
4125     done
4126 }
4127
4128 suncc_flags(){
4129     for flag; do
4130         case $flag in
4131             -march=*|-mcpu=*)
4132                 case "${flag#*=}" in
4133                     native)                   echo -xtarget=native       ;;
4134                     v9|niagara)               echo -xarch=sparc          ;;
4135                     ultrasparc)               echo -xarch=sparcvis       ;;
4136                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4137                     i586|pentium)             echo -xchip=pentium        ;;
4138                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4139                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4140                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4141                     pentium4*)          echo -xtarget=pentium4           ;;
4142                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4143                     *-sse3)             echo -xarch=sse3                 ;;
4144                     core2)      &nbs