Merge commit 'e7168d4c0cb279cf267690549ca92ad564572bc6'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112   --disable-autodetect     disable automatically detected external libraries [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188   --disable-v4l2_m2m       disable V4L2 mem2mem code [autodetect]
189
190 External library support:
191
192   Using any of the following switches will allow FFmpeg to link to the
193   corresponding external library. All the components depending on that library
194   will become enabled, if all their other dependencies are met and they are not
195   explicitly disabled. E.g. --enable-libwavpack will enable linking to
196   libwavpack and allow the libwavpack encoder to be built, unless it is
197   specifically disabled with --disable-encoder=libwavpack.
198
199   Note that only the system libraries are auto-detected. All the other external
200   libraries must be explicitly enabled.
201
202   Also note that the following help text describes the purpose of the libraries
203   themselves, not all their features will necessarily be usable by FFmpeg.
204
205   --disable-alsa           disable ALSA support [autodetect]
206   --disable-appkit         disable Apple AppKit framework [autodetect]
207   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
208   --enable-avisynth        enable reading of AviSynth script files [no]
209   --disable-bzlib          disable bzlib [autodetect]
210   --disable-coreimage      disable Apple CoreImage framework [autodetect]
211   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
212   --enable-frei0r          enable frei0r video filtering [no]
213   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
214                            if openssl, librtmp or gmp is not used [no]
215   --enable-gmp             enable gmp, needed for rtmp(t)e support
216                            if openssl or librtmp is not used [no]
217   --enable-gnutls          enable gnutls, needed for https support
218                            if openssl is not used [no]
219   --disable-iconv          disable iconv [autodetect]
220   --enable-jni             enable JNI support [no]
221   --enable-ladspa          enable LADSPA audio filtering [no]
222   --enable-libass          enable libass subtitles rendering,
223                            needed for subtitles and ass filter [no]
224   --enable-libbluray       enable BluRay reading using libbluray [no]
225   --enable-libbs2b         enable bs2b DSP library [no]
226   --enable-libcaca         enable textual display using libcaca [no]
227   --enable-libcelt         enable CELT decoding via libcelt [no]
228   --enable-libcdio         enable audio CD grabbing with libcdio [no]
229   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
230                            and libraw1394 [no]
231   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
232   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
233   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
234   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
235   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
236   --enable-libgme          enable Game Music Emu via libgme [no]
237   --enable-libgsm          enable GSM de/encoding via libgsm [no]
238   --enable-libiec61883     enable iec61883 via libiec61883 [no]
239   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
240   --enable-libjack         enable JACK audio sound server [no]
241   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
242   --enable-libmodplug      enable ModPlug via libmodplug [no]
243   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
244   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
245   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
246   --enable-libopencv       enable video filtering via libopencv [no]
247   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
248   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
249   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
250   --enable-libopus         enable Opus de/encoding via libopus [no]
251   --enable-libpulse        enable Pulseaudio input via libpulse [no]
252   --enable-librsvg         enable SVG rasterization via librsvg [no]
253   --enable-librubberband   enable rubberband needed for rubberband filter [no]
254   --enable-librtmp         enable RTMP[E] support via librtmp [no]
255   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
256   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
257   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
258   --enable-libsoxr         enable Include libsoxr resampling [no]
259   --enable-libspeex        enable Speex de/encoding via libspeex [no]
260   --enable-libssh          enable SFTP protocol via libssh [no]
261   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
262   --enable-libtheora       enable Theora encoding via libtheora [no]
263   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
264   --enable-libv4l2         enable libv4l2/v4l-utils [no]
265   --enable-libvidstab      enable video stabilization using vid.stab [no]
266   --enable-libvmaf         enable vmaf filter via libvmaf [no]
267   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
268   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
269                            native implementation exists [no]
270   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
271   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
272   --enable-libwebp         enable WebP encoding via libwebp [no]
273   --enable-libx264         enable H.264 encoding via x264 [no]
274   --enable-libx265         enable HEVC encoding via x265 [no]
275   --enable-libxavs         enable AVS encoding via xavs [no]
276   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
277   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
278   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
279   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
280   --enable-libxvid         enable Xvid encoding via xvidcore,
281                            native MPEG-4/Xvid encoder exists [no]
282   --enable-libxml2         enable XML parsing using the C library libxml2 [no]
283   --enable-libzimg         enable z.lib, needed for zscale filter [no]
284   --enable-libzmq          enable message passing via libzmq [no]
285   --enable-libzvbi         enable teletext support via libzvbi [no]
286   --disable-lzma           disable lzma [autodetect]
287   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
288   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
289   --enable-mediacodec      enable Android MediaCodec support [no]
290   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
291   --enable-openal          enable OpenAL 1.1 capture support [no]
292   --enable-opencl          enable OpenCL code
293   --enable-opengl          enable OpenGL rendering [no]
294   --enable-openssl         enable openssl, needed for https support
295                            if gnutls is not used [no]
296   --disable-sndio          disable sndio support [autodetect]
297   --disable-schannel       disable SChannel SSP, needed for TLS support on
298                            Windows if openssl and gnutls are not used [autodetect]
299   --disable-sdl2           disable sdl2 [autodetect]
300   --disable-securetransport disable Secure Transport, needed for TLS support
301                            on OSX if openssl and gnutls are not used [autodetect]
302   --disable-xlib           disable xlib [autodetect]
303   --disable-zlib           disable zlib [autodetect]
304
305   The following libraries provide various hardware acceleration features:
306   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
307   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
308   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
309   --disable-cuvid          disable Nvidia CUVID support [autodetect]
310   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
311   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
312   --enable-libdrm          enable DRM code (Linux) [no]
313   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
314   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
315   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
316   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
317   --disable-nvenc          disable Nvidia video encoding code [autodetect]
318   --enable-omx             enable OpenMAX IL code [no]
319   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
320   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
321   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
322   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
323   --disable-videotoolbox   disable VideoToolbox code [autodetect]
324
325 Toolchain options:
326   --arch=ARCH              select architecture [$arch]
327   --cpu=CPU                select the minimum required CPU (affects
328                            instruction selection, may crash on older CPUs)
329   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
330   --progs-suffix=SUFFIX    program name suffix []
331   --enable-cross-compile   assume a cross-compiler is used
332   --sysroot=PATH           root of cross-build tree
333   --sysinclude=PATH        location of cross-build system headers
334   --target-os=OS           compiler targets OS [$target_os]
335   --target-exec=CMD        command to run executables on target
336   --target-path=DIR        path to view of build directory on target
337   --target-samples=DIR     path to samples directory on target
338   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
339   --toolchain=NAME         set tool defaults according to NAME
340   --nm=NM                  use nm tool NM [$nm_default]
341   --ar=AR                  use archive tool AR [$ar_default]
342   --as=AS                  use assembler AS [$as_default]
343   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
344   --strip=STRIP            use strip tool STRIP [$strip_default]
345   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
346   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
347   --cc=CC                  use C compiler CC [$cc_default]
348   --cxx=CXX                use C compiler CXX [$cxx_default]
349   --objcc=OCC              use ObjC compiler OCC [$cc_default]
350   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
351   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
352   --ld=LD                  use linker LD [$ld_default]
353   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
354   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
355   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
356   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
357   --host-cc=HOSTCC         use host C compiler HOSTCC
358   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
359   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
360   --host-ld=HOSTLD         use host linker HOSTLD
361   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
362   --host-libs=HLIBS        use libs HLIBS when linking for host
363   --host-os=OS             compiler host OS [$target_os]
364   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
365   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
366   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
367   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
368   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
369   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
370   --extra-libs=ELIBS       add ELIBS [$ELIBS]
371   --extra-version=STRING   version string suffix []
372   --optflags=OPTFLAGS      override optimization-related compiler flags
373   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
374   --build-suffix=SUFFIX    library name suffix []
375   --enable-pic             build position-independent code
376   --enable-thumb           compile for Thumb instruction set
377   --enable-lto             use link-time optimization
378   --env="ENV=override"     override the environment variables
379
380 Advanced options (experts only):
381   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
382   --custom-allocator=NAME  use a supported custom allocator
383   --disable-symver         disable symbol versioning
384   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
385   --disable-safe-bitstream-reader
386                            disable buffer boundary checking in bitreaders
387                            (faster, but may crash)
388   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
389
390 Optimization options (experts only):
391   --disable-asm            disable all assembly optimizations
392   --disable-altivec        disable AltiVec optimizations
393   --disable-vsx            disable VSX optimizations
394   --disable-power8         disable POWER8 optimizations
395   --disable-amd3dnow       disable 3DNow! optimizations
396   --disable-amd3dnowext    disable 3DNow! extended optimizations
397   --disable-mmx            disable MMX optimizations
398   --disable-mmxext         disable MMXEXT optimizations
399   --disable-sse            disable SSE optimizations
400   --disable-sse2           disable SSE2 optimizations
401   --disable-sse3           disable SSE3 optimizations
402   --disable-ssse3          disable SSSE3 optimizations
403   --disable-sse4           disable SSE4 optimizations
404   --disable-sse42          disable SSE4.2 optimizations
405   --disable-avx            disable AVX optimizations
406   --disable-xop            disable XOP optimizations
407   --disable-fma3           disable FMA3 optimizations
408   --disable-fma4           disable FMA4 optimizations
409   --disable-avx2           disable AVX2 optimizations
410   --disable-aesni          disable AESNI optimizations
411   --disable-armv5te        disable armv5te optimizations
412   --disable-armv6          disable armv6 optimizations
413   --disable-armv6t2        disable armv6t2 optimizations
414   --disable-vfp            disable VFP optimizations
415   --disable-neon           disable NEON optimizations
416   --disable-inline-asm     disable use of inline assembly
417   --disable-x86asm         disable use of standalone x86 assembly
418   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
419   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
420   --disable-msa            disable MSA optimizations
421   --disable-mipsfpu        disable floating point MIPS optimizations
422   --disable-mmi            disable Loongson SIMD optimizations
423   --disable-fast-unaligned consider unaligned accesses slow
424
425 Developer options (useful when working on FFmpeg itself):
426   --disable-debug          disable debugging symbols
427   --enable-debug=LEVEL     set the debug level [$debuglevel]
428   --disable-optimizations  disable compiler optimizations
429   --enable-extra-warnings  enable more compiler warnings
430   --disable-stripping      disable stripping of executables and shared libraries
431   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
432                            2 causes a slowdown at runtime.
433   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
434   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
435                            leaks and errors, using the specified valgrind binary.
436                            Cannot be combined with --target-exec
437   --enable-ftrapv          Trap arithmetic overflows
438   --samples=PATH           location of test samples for FATE, if not set use
439                            \$FATE_SAMPLES at make invocation time.
440   --enable-neon-clobber-test check NEON registers for clobbering (should be
441                            used only for debugging purposes)
442   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
443                            should be used only for debugging purposes)
444   --enable-random          randomly enable/disable components
445   --disable-random
446   --enable-random=LIST     randomly enable/disable specific components or
447   --disable-random=LIST    component groups. LIST is a comma-separated list
448                            of NAME[:PROB] entries where NAME is a component
449                            (group) and PROB the probability associated with
450                            NAME (default 0.5).
451   --random-seed=VALUE      seed value for --enable/disable-random
452   --disable-valgrind-backtrace do not print a backtrace under Valgrind
453                            (only applies to --disable-optimizations builds)
454   --enable-osfuzz          Enable building fuzzer tool
455   --libfuzzer=PATH         path to libfuzzer
456   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
457                            in the name) of tests whose result is ignored
458   --enable-linux-perf      enable Linux Performance Monitor API
459
460 NOTE: Object files are built at the place where configure is launched.
461 EOF
462   exit 0
463 }
464
465 quotes='""'
466 if test -t 1 && which tput >/dev/null 2>&1; then
467     ncolors=$(tput colors)
468     if test -n "$ncolors" && test $ncolors -ge 8; then
469         bold_color=$(tput bold)
470         warn_color=$(tput setaf 3)
471         error_color=$(tput setaf 1)
472         reset_color=$(tput sgr0)
473     fi
474     # 72 used instead of 80 since that's the default of pr
475     ncols=$(tput cols)
476 fi
477 : ${ncols:=72}
478
479 log(){
480     echo "$@" >> $logfile
481 }
482
483 log_file(){
484     log BEGIN $1
485     pr -n -t $1 >> $logfile
486     log END $1
487 }
488
489 warn(){
490     log "WARNING: $*"
491     WARNINGS="${WARNINGS}WARNING: $*\n"
492 }
493
494 die(){
495     log "$@"
496     echo "$error_color$bold_color$@$reset_color"
497     cat <<EOF
498
499 If you think configure made a mistake, make sure you are using the latest
500 version from Git.  If the latest version fails, report the problem to the
501 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
502 EOF
503     if disabled logging; then
504         cat <<EOF
505 Rerun configure with logging enabled (do not use --disable-logging), and
506 include the log this produces with your report.
507 EOF
508     else
509         cat <<EOF
510 Include the log file "$logfile" produced by configure as this will help
511 solve the problem.
512 EOF
513     fi
514     exit 1
515 }
516
517 # Avoid locale weirdness, besides we really just want to translate ASCII.
518 toupper(){
519     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
520 }
521
522 tolower(){
523     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
524 }
525
526 c_escape(){
527     echo "$*" | sed 's/["\\]/\\\0/g'
528 }
529
530 sh_quote(){
531     v=$(echo "$1" | sed "s/'/'\\\\''/g")
532     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
533     echo "$v"
534 }
535
536 cleanws(){
537     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
538 }
539
540 filter(){
541     pat=$1
542     shift
543     for v; do
544         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
545     done
546 }
547
548 filter_out(){
549     pat=$1
550     shift
551     for v; do
552         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
553     done
554 }
555
556 map(){
557     m=$1
558     shift
559     for v; do eval $m; done
560 }
561
562 add_suffix(){
563     suffix=$1
564     shift
565     for v; do echo ${v}${suffix}; done
566 }
567
568 set_all(){
569     value=$1
570     shift
571     for var in $*; do
572         eval $var=$value
573     done
574 }
575
576 set_weak(){
577     value=$1
578     shift
579     for var; do
580         eval : \${$var:=$value}
581     done
582 }
583
584 sanitize_var_name(){
585     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
586 }
587
588 set_sanitized(){
589     var=$1
590     shift
591     eval $(sanitize_var_name "$var")='$*'
592 }
593
594 get_sanitized(){
595     eval echo \$$(sanitize_var_name "$1")
596 }
597
598 pushvar(){
599     for pvar in $*; do
600         eval level=\${${pvar}_level:=0}
601         eval ${pvar}_${level}="\$$pvar"
602         eval ${pvar}_level=$(($level+1))
603     done
604 }
605
606 popvar(){
607     for pvar in $*; do
608         eval level=\${${pvar}_level:-0}
609         test $level = 0 && continue
610         eval level=$(($level-1))
611         eval $pvar="\${${pvar}_${level}}"
612         eval ${pvar}_level=$level
613         eval unset ${pvar}_${level}
614     done
615 }
616
617 request(){
618     for var in $*; do
619         eval ${var}_requested=yes
620         eval $var=
621     done
622 }
623
624 enable(){
625     set_all yes $*
626 }
627
628 disable(){
629     set_all no $*
630 }
631
632 enable_weak(){
633     set_weak yes $*
634 }
635
636 disable_weak(){
637     set_weak no $*
638 }
639
640 enable_sanitized(){
641     for var; do
642         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
643     done
644 }
645
646 disable_sanitized(){
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_ldsoflags(){
874     append LDSOFLAGS $($ldflags_filter "$@")
875 }
876
877 add_stripflags(){
878     append ASMSTRIPFLAGS "$@"
879 }
880
881 add_extralibs(){
882     prepend extralibs $($ldflags_filter "$@")
883 }
884
885 add_host_cppflags(){
886     append host_cppflags "$@"
887 }
888
889 add_host_cflags(){
890     append host_cflags $($host_cflags_filter "$@")
891 }
892
893 add_host_ldflags(){
894     append host_ldflags $($host_ldflags_filter "$@")
895 }
896
897 add_compat(){
898     append compat_objs $1
899     shift
900     map 'add_cppflags -D$v' "$@"
901 }
902
903 check_cmd(){
904     log "$@"
905     "$@" >> $logfile 2>&1
906 }
907
908 check_stat(){
909     log check_stat "$@"
910     stat "$1" >> $logfile 2>&1
911 }
912
913 cc_o(){
914     eval printf '%s\\n' $CC_O
915 }
916
917 cc_e(){
918     eval printf '%s\\n' $CC_E
919 }
920
921 check_cc(){
922     log check_cc "$@"
923     cat > $TMPC
924     log_file $TMPC
925     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
926 }
927
928 check_cxx(){
929     log check_cxx "$@"
930     cat > $TMPCPP
931     log_file $TMPCPP
932     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
933 }
934
935 check_objcc(){
936     log check_objcc "$@"
937     cat > $TMPM
938     log_file $TMPM
939     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
940 }
941
942 check_cpp(){
943     log check_cpp "$@"
944     cat > $TMPC
945     log_file $TMPC
946     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
947 }
948
949 as_o(){
950     eval printf '%s\\n' $AS_O
951 }
952
953 check_as(){
954     log check_as "$@"
955     cat > $TMPS
956     log_file $TMPS
957     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
958 }
959
960 check_inline_asm(){
961     log check_inline_asm "$@"
962     name="$1"
963     code="$2"
964     shift 2
965     disable $name
966     check_cc "$@" <<EOF && enable $name
967 void foo(void){ __asm__ volatile($code); }
968 EOF
969 }
970
971 check_inline_asm_flags(){
972     log check_inline_asm_flags "$@"
973     name="$1"
974     code="$2"
975     flags=''
976     shift 2
977     while [ "$1" != "" ]; do
978       append flags $1
979       shift
980     done;
981     disable $name
982     cat > $TMPC <<EOF
983 void foo(void){ __asm__ volatile($code); }
984 EOF
985     log_file $TMPC
986     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
987     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
988 }
989
990 check_insn(){
991     log check_insn "$@"
992     check_inline_asm ${1}_inline "\"$2\""
993     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
994 }
995
996 check_x86asm(){
997     log check_x86asm "$@"
998     echo "$1" > $TMPS
999     log_file $TMPS
1000     shift 1
1001     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
1002 }
1003
1004 ld_o(){
1005     eval printf '%s\\n' $LD_O
1006 }
1007
1008 check_ld(){
1009     log check_ld "$@"
1010     type=$1
1011     shift 1
1012     flags=$(filter_out '-l*|*.so' $@)
1013     libs=$(filter '-l*|*.so' $@)
1014     check_$type $($cflags_filter $flags) || return
1015     flags=$($ldflags_filter $flags)
1016     libs=$($ldflags_filter $libs)
1017     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1018 }
1019
1020 print_include(){
1021     hdr=$1
1022     test "${hdr%.h}" = "${hdr}" &&
1023         echo "#include $hdr"    ||
1024         echo "#include <$hdr>"
1025 }
1026
1027 check_code(){
1028     log check_code "$@"
1029     check=$1
1030     headers=$2
1031     code=$3
1032     shift 3
1033     {
1034         for hdr in $headers; do
1035             print_include $hdr
1036         done
1037         echo "int main(void) { $code; return 0; }"
1038     } | check_$check "$@"
1039 }
1040
1041 check_cppflags(){
1042     log check_cppflags "$@"
1043     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1044 #include <stdlib.h>
1045 EOF
1046 }
1047
1048 test_cflags(){
1049     log test_cflags "$@"
1050     set -- $($cflags_filter "$@")
1051     check_cc "$@" <<EOF
1052 int x;
1053 EOF
1054 }
1055
1056 check_cflags(){
1057     log check_cflags "$@"
1058     test_cflags "$@" && add_cflags "$@"
1059 }
1060
1061 check_cxxflags(){
1062     log check_cxxflags "$@"
1063     set -- $($cflags_filter "$@")
1064     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1065 int x;
1066 EOF
1067 }
1068
1069 test_objcflags(){
1070     log test_objcflags "$@"
1071     set -- $($objcflags_filter "$@")
1072     check_objcc "$@" <<EOF
1073 int x;
1074 EOF
1075 }
1076
1077 check_objcflags(){
1078     log check_objcflags "$@"
1079     test_objcflags "$@" && add_objcflags "$@"
1080 }
1081
1082 test_ldflags(){
1083     log test_ldflags "$@"
1084     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_sanitized $header
1113     check_cpp "$@" <<EOF && enable_sanitized $header
1114 #include <$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_sanitized $header
1125     {
1126        echo "#include <$header>"
1127        echo "int main(void) { return 0; }"
1128     } | check_objcc && check_stat "$TMPO" && enable_sanitized $header
1129 }
1130
1131 check_apple_framework(){
1132     log check_apple_framework "$@"
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_sanitized $headers
1201 }
1202
1203 check_class_headers_cpp(){
1204     log check_class_headers_cpp "$@"
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_sanitized $headers
1220 }
1221
1222 check_cpp_condition(){
1223     log check_cpp_condition "$@"
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 ${name}_extralibs="\$@"
1270 }
1271
1272 test_pkg_config(){
1273     log test_pkg_config "$@"
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 $name &&
1286         set_sanitized "${name}_cflags"    $pkg_cflags &&
1287         set_sanitized "${name}_extralibs" $pkg_libs
1288 }
1289
1290 check_pkg_config(){
1291     log check_pkg_config "$@"
1292     name="$1"
1293     test_pkg_config "$@" &&
1294         eval add_cflags \$${name}_cflags
1295 }
1296
1297 check_exec(){
1298     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1299 }
1300
1301 check_exec_crash(){
1302     log check_exec_crash "$@"
1303     code=$(cat)
1304
1305     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1306     # are safe but may not be available everywhere.  Thus we use
1307     # raise(SIGTERM) instead.  The check is run in a subshell so we
1308     # can redirect the "Terminated" message from the shell.  SIGBUS
1309     # is not defined by standard C so it is used conditionally.
1310
1311     (check_exec "$@") >> $logfile 2>&1 <<EOF
1312 #include <signal.h>
1313 static void sighandler(int sig){
1314     raise(SIGTERM);
1315 }
1316 int foo(void){
1317     $code
1318 }
1319 int (*func_ptr)(void) = foo;
1320 int main(void){
1321     signal(SIGILL, sighandler);
1322     signal(SIGFPE, sighandler);
1323     signal(SIGSEGV, sighandler);
1324 #ifdef SIGBUS
1325     signal(SIGBUS, sighandler);
1326 #endif
1327     return func_ptr();
1328 }
1329 EOF
1330 }
1331
1332 check_type(){
1333     log check_type "$@"
1334     headers=$1
1335     type=$2
1336     shift 2
1337     disable_sanitized "$type"
1338     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1339 }
1340
1341 check_struct(){
1342     log check_struct "$@"
1343     headers=$1
1344     struct=$2
1345     member=$3
1346     shift 3
1347     disable_sanitized "${struct}_${member}"
1348     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1349         enable_sanitized "${struct}_${member}"
1350 }
1351
1352 check_builtin(){
1353     log check_builtin "$@"
1354     name=$1
1355     headers=$2
1356     builtin=$3
1357     shift 3
1358     disable "$name"
1359     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1360 }
1361
1362 check_compile_assert(){
1363     log check_compile_assert "$@"
1364     name=$1
1365     headers=$2
1366     condition=$3
1367     shift 3
1368     disable "$name"
1369     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1370 }
1371
1372 require(){
1373     log require "$@"
1374     name_version="$1"
1375     name="${1%% *}"
1376     headers="$2"
1377     func="$3"
1378     shift 3
1379     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1380 }
1381
1382 require_cpp(){
1383     name="$1"
1384     headers="$2"
1385     classes="$3"
1386     shift 3
1387     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1388 }
1389
1390 require_header(){
1391     log require "$@"
1392     header="$1"
1393     shift
1394     check_header "$header" "$@" || die "ERROR: $header header not found"
1395 }
1396
1397 require_cpp_condition(){
1398     log require "$@"
1399     header="$1"
1400     condition="$2"
1401     shift 2
1402     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1403 }
1404
1405 require_pkg_config(){
1406     log require_pkg_config "$@"
1407     pkg_version="$2"
1408     check_pkg_config "$@" || 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     libxcb
1538     libxcb_shm
1539     libxcb_shape
1540     libxcb_xfixes
1541     lzma
1542     schannel
1543     sdl2
1544     securetransport
1545     sndio
1546     xlib
1547     zlib
1548 "
1549
1550 EXTERNAL_LIBRARY_GPL_LIST="
1551     avisynth
1552     frei0r
1553     libcdio
1554     librubberband
1555     libvidstab
1556     libx264
1557     libx265
1558     libxavs
1559     libxvid
1560 "
1561
1562 EXTERNAL_LIBRARY_NONFREE_LIST="
1563     decklink
1564     libndi_newtek
1565     libfdk_aac
1566     openssl
1567 "
1568
1569 EXTERNAL_LIBRARY_VERSION3_LIST="
1570     gmp
1571     libopencore_amrnb
1572     libopencore_amrwb
1573     libvmaf
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     libjack
1608     libkvazaar
1609     libmodplug
1610     libmp3lame
1611     libmysofa
1612     libopencv
1613     libopenh264
1614     libopenjpeg
1615     libopenmpt
1616     libopus
1617     libpulse
1618     librsvg
1619     librtmp
1620     libshine
1621     libsmbclient
1622     libsnappy
1623     libsoxr
1624     libspeex
1625     libssh
1626     libtesseract
1627     libtheora
1628     libtwolame
1629     libv4l2
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     nvdec
1652     nvenc
1653     vaapi
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
1887     simd_align_16
1888     simd_align_32
1889 "
1890
1891 BUILTIN_LIST="
1892     atomic_cas_ptr
1893     machine_rw_barrier
1894     MemoryBarrier
1895     mm_empty
1896     rdtsc
1897     sarestart
1898     sem_timedwait
1899     sync_val_compare_and_swap
1900 "
1901 HAVE_LIST_CMDLINE="
1902     inline_asm
1903     symver
1904     x86asm
1905 "
1906
1907 HAVE_LIST_PUB="
1908     bigendian
1909     fast_unaligned
1910 "
1911
1912 HEADERS_LIST="
1913     arpa_inet_h
1914     asm_types_h
1915     cdio_paranoia_h
1916     cdio_paranoia_paranoia_h
1917     cuda_h
1918     dispatch_dispatch_h
1919     dev_bktr_ioctl_bt848_h
1920     dev_bktr_ioctl_meteor_h
1921     dev_ic_bt8xx_h
1922     dev_video_bktr_ioctl_bt848_h
1923     dev_video_meteor_ioctl_meteor_h
1924     direct_h
1925     dirent_h
1926     dxgidebug_h
1927     dxva_h
1928     ES2_gl_h
1929     gsm_h
1930     io_h
1931     mach_mach_time_h
1932     machine_ioctl_bt848_h
1933     machine_ioctl_meteor_h
1934     malloc_h
1935     opencv2_core_core_c_h
1936     OpenGL_gl3_h
1937     poll_h
1938     soundcard_h
1939     stdatomic_h
1940     sys_mman_h
1941     sys_param_h
1942     sys_resource_h
1943     sys_select_h
1944     sys_soundcard_h
1945     sys_time_h
1946     sys_un_h
1947     sys_videoio_h
1948     termios_h
1949     udplite_h
1950     unistd_h
1951     valgrind_valgrind_h
1952     windows_h
1953     winsock2_h
1954 "
1955
1956 INTRINSICS_LIST="
1957     intrinsics_neon
1958 "
1959
1960 COMPLEX_FUNCS="
1961     cabs
1962     cexp
1963 "
1964
1965 MATH_FUNCS="
1966     atanf
1967     atan2f
1968     cbrt
1969     cbrtf
1970     copysign
1971     cosf
1972     erf
1973     exp2
1974     exp2f
1975     expf
1976     hypot
1977     isfinite
1978     isinf
1979     isnan
1980     ldexpf
1981     llrint
1982     llrintf
1983     log2
1984     log2f
1985     log10f
1986     lrint
1987     lrintf
1988     powf
1989     rint
1990     round
1991     roundf
1992     sinf
1993     trunc
1994     truncf
1995 "
1996
1997 SYSTEM_FUNCS="
1998     access
1999     aligned_malloc
2000     arc4random
2001     clock_gettime
2002     closesocket
2003     CommandLineToArgvW
2004     CryptGenRandom
2005     fcntl
2006     fork
2007     getaddrinfo
2008     gethrtime
2009     getopt
2010     GetProcessAffinityMask
2011     GetProcessMemoryInfo
2012     GetProcessTimes
2013     getrusage
2014     GetSystemTimeAsFileTime
2015     gettimeofday
2016     glob
2017     glXGetProcAddress
2018     gmtime_r
2019     inet_aton
2020     isatty
2021     kbhit
2022     localtime_r
2023     lstat
2024     lzo1x_999_compress
2025     mach_absolute_time
2026     MapViewOfFile
2027     memalign
2028     mkstemp
2029     mmap
2030     mprotect
2031     nanosleep
2032     PeekNamedPipe
2033     posix_memalign
2034     pthread_cancel
2035     sched_getaffinity
2036     SetConsoleTextAttribute
2037     SetConsoleCtrlHandler
2038     setmode
2039     setrlimit
2040     Sleep
2041     strerror_r
2042     sysconf
2043     sysctl
2044     usleep
2045     UTGetOSTypeFromString
2046     VirtualAlloc
2047     wglGetProcAddress
2048 "
2049
2050 TOOLCHAIN_FEATURES="
2051     as_arch_directive
2052     as_fpu_directive
2053     as_func
2054     as_object_arch
2055     asm_mod_q
2056     attribute_may_alias
2057     attribute_packed
2058     blocks_extension
2059     ebp_available
2060     ebx_available
2061     gnu_as
2062     gnu_windres
2063     ibm_asm
2064     inline_asm_direct_symbol_refs
2065     inline_asm_labels
2066     inline_asm_nonlocal_labels
2067     pragma_deprecated
2068     rsync_contimeout
2069     symver_asm_label
2070     symver_gnu_asm
2071     vfp_args
2072     xform_asm
2073     xmm_clobbers
2074 "
2075
2076 TYPES_LIST="
2077     CONDITION_VARIABLE_Ptr
2078     kCMVideoCodecType_HEVC
2079     socklen_t
2080     struct_addrinfo
2081     struct_group_source_req
2082     struct_ip_mreq_source
2083     struct_ipv6_mreq
2084     struct_msghdr_msg_flags
2085     struct_pollfd
2086     struct_rusage_ru_maxrss
2087     struct_sctp_event_subscribe
2088     struct_sockaddr_in6
2089     struct_sockaddr_sa_len
2090     struct_sockaddr_storage
2091     struct_stat_st_mtim_tv_nsec
2092     struct_v4l2_frmivalenum_discrete
2093 "
2094
2095 HAVE_LIST="
2096     $ARCH_EXT_LIST
2097     $(add_suffix _external $ARCH_EXT_LIST)
2098     $(add_suffix _inline   $ARCH_EXT_LIST)
2099     $ARCH_FEATURES
2100     $ATOMICS_LIST
2101     $BUILTIN_LIST
2102     $COMPLEX_FUNCS
2103     $HAVE_LIST_CMDLINE
2104     $HAVE_LIST_PUB
2105     $HEADERS_LIST
2106     $INTRINSICS_LIST
2107     $MATH_FUNCS
2108     $SYSTEM_FUNCS
2109     $THREADS_LIST
2110     $TOOLCHAIN_FEATURES
2111     $TYPES_LIST
2112     atomics_native
2113     dos_paths
2114     libc_msvcrt
2115     makeinfo
2116     makeinfo_html
2117     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2118     perl
2119     pod2man
2120     section_data_rel_ro
2121     texi2html
2122     threads
2123     uwp
2124     vaapi_drm
2125     vaapi_x11
2126     vdpau_x11
2127     winrt
2128 "
2129
2130 # options emitted with CONFIG_ prefix but not available on the command line
2131 CONFIG_EXTRA="
2132     aandcttables
2133     ac3dsp
2134     adts_header
2135     audio_frame_queue
2136     audiodsp
2137     blockdsp
2138     bswapdsp
2139     cabac
2140     cbs
2141     cbs_h264
2142     cbs_h265
2143     cbs_mpeg2
2144     dirac_parse
2145     dvprofile
2146     exif
2147     faandct
2148     faanidct
2149     fdctdsp
2150     flacdsp
2151     fmtconvert
2152     frame_thread_encoder
2153     g722dsp
2154     golomb
2155     gplv3
2156     h263dsp
2157     h264chroma
2158     h264dsp
2159     h264parse
2160     h264pred
2161     h264qpel
2162     hevcparse
2163     hpeldsp
2164     huffman
2165     huffyuvdsp
2166     huffyuvencdsp
2167     idctdsp
2168     iirfilter
2169     mdct15
2170     intrax8
2171     iso_media
2172     ividsp
2173     jpegtables
2174     lgplv3
2175     libx262
2176     llauddsp
2177     llviddsp
2178     llvidencdsp
2179     lpc
2180     lzf
2181     me_cmp
2182     mpeg_er
2183     mpegaudio
2184     mpegaudiodsp
2185     mpegaudioheader
2186     mpegvideo
2187     mpegvideoenc
2188     mss34dsp
2189     pixblockdsp
2190     qpeldsp
2191     qsv
2192     qsvdec
2193     qsvenc
2194     qsvvpp
2195     rangecoder
2196     riffdec
2197     riffenc
2198     rtpdec
2199     rtpenc_chain
2200     rv34dsp
2201     sinewin
2202     snappy
2203     srtp
2204     startcode
2205     texturedsp
2206     texturedspenc
2207     tpeldsp
2208     vaapi_1
2209     vaapi_encode
2210     vc1dsp
2211     videodsp
2212     vp3dsp
2213     vp56dsp
2214     vp8dsp
2215     wma_freqs
2216     wmv2dsp
2217 "
2218
2219 CMDLINE_SELECT="
2220     $ARCH_EXT_LIST
2221     $CONFIG_LIST
2222     $HAVE_LIST_CMDLINE
2223     $THREADS_LIST
2224     asm
2225     cross_compile
2226     debug
2227     extra_warnings
2228     logging
2229     lto
2230     optimizations
2231     rpath
2232     stripping
2233 "
2234
2235 PATHS_LIST="
2236     bindir
2237     datadir
2238     docdir
2239     incdir
2240     libdir
2241     mandir
2242     pkgconfigdir
2243     prefix
2244     shlibdir
2245     install_name_dir
2246 "
2247
2248 CMDLINE_SET="
2249     $PATHS_LIST
2250     ar
2251     arch
2252     as
2253     assert_level
2254     build_suffix
2255     cc
2256     objcc
2257     cpu
2258     cross_prefix
2259     custom_allocator
2260     cxx
2261     dep_cc
2262     doxygen
2263     env
2264     extra_version
2265     gas
2266     host_cc
2267     host_cflags
2268     host_extralibs
2269     host_ld
2270     host_ldflags
2271     host_os
2272     ignore_tests
2273     install
2274     ld
2275     ln_s
2276     logfile
2277     malloc_prefix
2278     nm
2279     optflags
2280     nvccflags
2281     pkg_config
2282     pkg_config_flags
2283     progs_suffix
2284     random_seed
2285     ranlib
2286     samples
2287     strip
2288     sws_max_filter_size
2289     sysinclude
2290     sysroot
2291     target_exec
2292     target_os
2293     target_path
2294     target_samples
2295     tempprefix
2296     toolchain
2297     valgrind
2298     x86asmexe
2299 "
2300
2301 CMDLINE_APPEND="
2302     extra_cflags
2303     extra_cxxflags
2304     extra_objcflags
2305     host_cppflags
2306 "
2307
2308 # code dependency declarations
2309
2310 # architecture extensions
2311
2312 armv5te_deps="arm"
2313 armv6_deps="arm"
2314 armv6t2_deps="arm"
2315 armv8_deps="aarch64"
2316 neon_deps_any="aarch64 arm"
2317 intrinsics_neon_deps="neon"
2318 vfp_deps_any="aarch64 arm"
2319 vfpv3_deps="vfp"
2320 setend_deps="arm"
2321
2322 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2323
2324 altivec_deps="ppc"
2325 dcbzl_deps="ppc"
2326 ldbrx_deps="ppc"
2327 ppc4xx_deps="ppc"
2328 vsx_deps="altivec"
2329 power8_deps="vsx"
2330
2331 loongson2_deps="mips"
2332 loongson3_deps="mips"
2333 mips32r2_deps="mips"
2334 mips32r5_deps="mips"
2335 mips32r6_deps="mips"
2336 mips64r2_deps="mips"
2337 mips64r6_deps="mips"
2338 mipsfpu_deps="mips"
2339 mipsdsp_deps="mips"
2340 mipsdspr2_deps="mips"
2341 mmi_deps="mips"
2342 msa_deps="mipsfpu"
2343
2344 cpunop_deps="i686"
2345 x86_64_select="i686"
2346 x86_64_suggest="fast_cmov"
2347
2348 amd3dnow_deps="mmx"
2349 amd3dnowext_deps="amd3dnow"
2350 i686_deps="x86"
2351 mmx_deps="x86"
2352 mmxext_deps="mmx"
2353 sse_deps="mmxext"
2354 sse2_deps="sse"
2355 sse3_deps="sse2"
2356 ssse3_deps="sse3"
2357 sse4_deps="ssse3"
2358 sse42_deps="sse4"
2359 aesni_deps="sse42"
2360 avx_deps="sse42"
2361 xop_deps="avx"
2362 fma3_deps="avx"
2363 fma4_deps="avx"
2364 avx2_deps="avx"
2365
2366 mmx_external_deps="x86asm"
2367 mmx_inline_deps="inline_asm x86"
2368 mmx_suggest="mmx_external mmx_inline"
2369
2370 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2371     eval dep=\$${ext}_deps
2372     eval ${ext}_external_deps='"${dep}_external"'
2373     eval ${ext}_inline_deps='"${dep}_inline"'
2374     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2375 done
2376
2377 aligned_stack_if_any="aarch64 ppc x86"
2378 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2379 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2380 fast_unaligned_if_any="aarch64 ppc x86"
2381 simd_align_16_if_any="altivec neon sse"
2382 simd_align_32_if_any="avx"
2383
2384 # system capabilities
2385 symver_if_any="symver_asm_label symver_gnu_asm"
2386 valgrind_backtrace_conflict="optimizations"
2387 valgrind_backtrace_deps="valgrind_valgrind_h"
2388
2389 # threading support
2390 atomics_gcc_if="sync_val_compare_and_swap"
2391 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2392 atomics_win32_if="MemoryBarrier"
2393 atomics_native_if_any="$ATOMICS_LIST"
2394 w32threads_deps="atomics_native"
2395 threads_if_any="$THREADS_LIST"
2396
2397 # subsystems
2398 cbs_h264_select="cbs golomb"
2399 cbs_h265_select="cbs golomb"
2400 cbs_mpeg2_select="cbs"
2401 dct_select="rdft"
2402 dirac_parse_select="golomb"
2403 error_resilience_select="me_cmp"
2404 faandct_deps="faan"
2405 faandct_select="fdctdsp"
2406 faanidct_deps="faan"
2407 faanidct_select="idctdsp"
2408 h264dsp_select="startcode"
2409 hevcparse_select="golomb"
2410 frame_thread_encoder_deps="encoders threads"
2411 intrax8_select="blockdsp idctdsp"
2412 mdct_select="fft"
2413 mdct15_select="fft"
2414 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2415 mpeg_er_select="error_resilience"
2416 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2417 mpegaudiodsp_select="dct"
2418 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2419 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2420 vc1dsp_select="h264chroma qpeldsp startcode"
2421 rdft_select="fft"
2422
2423 # decoders / encoders
2424 aac_decoder_select="adts_header mdct15 mdct sinewin"
2425 aac_fixed_decoder_select="mdct sinewin"
2426 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2427 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2428 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2429 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2430 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2431 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2432 adpcm_g722_decoder_select="g722dsp"
2433 adpcm_g722_encoder_select="g722dsp"
2434 aic_decoder_select="golomb idctdsp"
2435 alac_encoder_select="lpc"
2436 als_decoder_select="bswapdsp"
2437 amrnb_decoder_select="lsp"
2438 amrwb_decoder_select="lsp"
2439 amv_decoder_select="sp5x_decoder exif"
2440 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2441 ape_decoder_select="bswapdsp llauddsp"
2442 apng_decoder_select="zlib"
2443 apng_encoder_select="llvidencdsp zlib"
2444 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2445 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2446 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2447 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2448 atrac1_decoder_select="mdct sinewin"
2449 atrac3_decoder_select="mdct"
2450 atrac3p_decoder_select="mdct sinewin"
2451 avrn_decoder_select="exif jpegtables"
2452 bink_decoder_select="blockdsp hpeldsp"
2453 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2454 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2455 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2456 clearvideo_decoder_select="idctdsp"
2457 cllc_decoder_select="bswapdsp"
2458 comfortnoise_encoder_select="lpc"
2459 cook_decoder_select="audiodsp mdct sinewin"
2460 cscd_decoder_select="lzo"
2461 cscd_decoder_suggest="zlib"
2462 dca_decoder_select="mdct"
2463 dds_decoder_select="texturedsp"
2464 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2465 dnxhd_decoder_select="blockdsp idctdsp"
2466 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2467 dolby_e_decoder_select="mdct"
2468 dvvideo_decoder_select="dvprofile idctdsp"
2469 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2470 dxa_decoder_select="zlib"
2471 dxv_decoder_select="lzf texturedsp"
2472 eac3_decoder_select="ac3_decoder"
2473 eac3_encoder_select="ac3_encoder"
2474 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2475 eatgq_decoder_select="aandcttables"
2476 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2477 exr_decoder_select="zlib"
2478 ffv1_decoder_select="rangecoder"
2479 ffv1_encoder_select="rangecoder"
2480 ffvhuff_decoder_select="huffyuv_decoder"
2481 ffvhuff_encoder_select="huffyuv_encoder"
2482 fic_decoder_select="golomb"
2483 flac_decoder_select="flacdsp"
2484 flac_encoder_select="bswapdsp flacdsp lpc"
2485 flashsv2_decoder_select="zlib"
2486 flashsv2_encoder_select="zlib"
2487 flashsv_decoder_select="zlib"
2488 flashsv_encoder_select="zlib"
2489 flv_decoder_select="h263_decoder"
2490 flv_encoder_select="h263_encoder"
2491 fourxm_decoder_select="blockdsp bswapdsp"
2492 fraps_decoder_select="bswapdsp huffman"
2493 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2494 g729_decoder_select="audiodsp"
2495 h261_decoder_select="mpegvideo"
2496 h261_encoder_select="aandcttables mpegvideoenc"
2497 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2498 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2499 h263i_decoder_select="h263_decoder"
2500 h263p_decoder_select="h263_decoder"
2501 h263p_encoder_select="h263_encoder"
2502 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2503 h264_decoder_suggest="error_resilience"
2504 hap_decoder_select="snappy texturedsp"
2505 hap_encoder_deps="libsnappy"
2506 hap_encoder_select="texturedspenc"
2507 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2508 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2509 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2510 iac_decoder_select="imc_decoder"
2511 imc_decoder_select="bswapdsp fft mdct sinewin"
2512 indeo3_decoder_select="hpeldsp"
2513 indeo4_decoder_select="ividsp"
2514 indeo5_decoder_select="ividsp"
2515 interplay_video_decoder_select="hpeldsp"
2516 jpegls_decoder_select="mjpeg_decoder"
2517 jv_decoder_select="blockdsp"
2518 lagarith_decoder_select="llviddsp"
2519 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2520 magicyuv_decoder_select="llviddsp"
2521 magicyuv_encoder_select="llvidencdsp"
2522 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2523 metasound_decoder_select="lsp mdct sinewin"
2524 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2525 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2526 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2527 mjpegb_decoder_select="mjpeg_decoder"
2528 mlp_decoder_select="mlp_parser"
2529 mlp_encoder_select="lpc"
2530 motionpixels_decoder_select="bswapdsp"
2531 mp1_decoder_select="mpegaudio"
2532 mp1float_decoder_select="mpegaudio"
2533 mp2_decoder_select="mpegaudio"
2534 mp2float_decoder_select="mpegaudio"
2535 mp3_decoder_select="mpegaudio"
2536 mp3adu_decoder_select="mpegaudio"
2537 mp3adufloat_decoder_select="mpegaudio"
2538 mp3float_decoder_select="mpegaudio"
2539 mp3on4_decoder_select="mpegaudio"
2540 mp3on4float_decoder_select="mpegaudio"
2541 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2542 mpc8_decoder_select="mpegaudiodsp"
2543 mpegvideo_decoder_select="mpegvideo"
2544 mpeg1video_decoder_select="mpegvideo"
2545 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2546 mpeg2video_decoder_select="mpegvideo"
2547 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2548 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2549 mpeg4_encoder_select="h263_encoder"
2550 msa1_decoder_select="mss34dsp"
2551 mscc_decoder_select="zlib"
2552 msmpeg4v1_decoder_select="h263_decoder"
2553 msmpeg4v2_decoder_select="h263_decoder"
2554 msmpeg4v2_encoder_select="h263_encoder"
2555 msmpeg4v3_decoder_select="h263_decoder"
2556 msmpeg4v3_encoder_select="h263_encoder"
2557 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2558 mts2_decoder_select="mss34dsp"
2559 mxpeg_decoder_select="mjpeg_decoder"
2560 nellymoser_decoder_select="mdct sinewin"
2561 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2562 nuv_decoder_select="idctdsp lzo"
2563 on2avc_decoder_select="mdct"
2564 opus_decoder_deps="swresample"
2565 opus_decoder_select="mdct15"
2566 opus_encoder_select="audio_frame_queue mdct15"
2567 png_decoder_select="zlib"
2568 png_encoder_select="llvidencdsp zlib"
2569 prores_decoder_select="blockdsp idctdsp"
2570 prores_encoder_select="fdctdsp"
2571 qcelp_decoder_select="lsp"
2572 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2573 ra_144_decoder_select="audiodsp"
2574 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2575 ralf_decoder_select="golomb"
2576 rawvideo_decoder_select="bswapdsp"
2577 rscc_decoder_select="zlib"
2578 rtjpeg_decoder_select="me_cmp"
2579 rv10_decoder_select="h263_decoder"
2580 rv10_encoder_select="h263_encoder"
2581 rv20_decoder_select="h263_decoder"
2582 rv20_encoder_select="h263_encoder"
2583 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2584 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2585 screenpresso_decoder_select="zlib"
2586 shorten_decoder_select="bswapdsp"
2587 sipr_decoder_select="lsp"
2588 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2589 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2590 sonic_decoder_select="golomb rangecoder"
2591 sonic_encoder_select="golomb rangecoder"
2592 sonic_ls_encoder_select="golomb rangecoder"
2593 sp5x_decoder_select="mjpeg_decoder"
2594 srgc_decoder_select="zlib"
2595 svq1_decoder_select="hpeldsp"
2596 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2597 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2598 svq3_decoder_suggest="zlib"
2599 tak_decoder_select="audiodsp"
2600 tdsc_decoder_select="zlib mjpeg_decoder"
2601 theora_decoder_select="vp3_decoder"
2602 thp_decoder_select="mjpeg_decoder"
2603 tiff_decoder_suggest="zlib lzma"
2604 tiff_encoder_suggest="zlib"
2605 truehd_decoder_select="mlp_parser"
2606 truehd_encoder_select="lpc"
2607 truemotion2_decoder_select="bswapdsp"
2608 truespeech_decoder_select="bswapdsp"
2609 tscc_decoder_select="zlib"
2610 twinvq_decoder_select="mdct lsp sinewin"
2611 txd_decoder_select="texturedsp"
2612 utvideo_decoder_select="bswapdsp llviddsp"
2613 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2614 vble_decoder_select="llviddsp"
2615 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2616 vc1image_decoder_select="vc1_decoder"
2617 vorbis_decoder_select="mdct"
2618 vorbis_encoder_select="mdct"
2619 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2620 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2621 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2622 vp6a_decoder_select="vp6_decoder"
2623 vp6f_decoder_select="vp6_decoder"
2624 vp7_decoder_select="h264pred videodsp vp8dsp"
2625 vp8_decoder_select="h264pred videodsp vp8dsp"
2626 vp9_decoder_select="videodsp vp9_parser"
2627 webp_decoder_select="vp8_decoder exif"
2628 wmalossless_decoder_select="llauddsp"
2629 wmapro_decoder_select="mdct sinewin wma_freqs"
2630 wmav1_decoder_select="mdct sinewin wma_freqs"
2631 wmav1_encoder_select="mdct sinewin wma_freqs"
2632 wmav2_decoder_select="mdct sinewin wma_freqs"
2633 wmav2_encoder_select="mdct sinewin wma_freqs"
2634 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2635 wmv1_decoder_select="h263_decoder"
2636 wmv1_encoder_select="h263_encoder"
2637 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2638 wmv2_encoder_select="h263_encoder wmv2dsp"
2639 wmv3_decoder_select="vc1_decoder"
2640 wmv3image_decoder_select="wmv3_decoder"
2641 xma1_decoder_select="wmapro_decoder"
2642 xma2_decoder_select="wmapro_decoder"
2643 zerocodec_decoder_select="zlib"
2644 zlib_decoder_select="zlib"
2645 zlib_encoder_select="zlib"
2646 zmbv_decoder_select="zlib"
2647 zmbv_encoder_select="zlib"
2648
2649 # hardware accelerators
2650 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2651 cuda_deps_any="libdl LoadLibrary"
2652 cuvid_deps="cuda"
2653 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2654 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2655 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2656 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2657 xvmc_deps="X11_extensions_XvMClib_h"
2658
2659 h263_vaapi_hwaccel_deps="vaapi"
2660 h263_vaapi_hwaccel_select="h263_decoder"
2661 h263_videotoolbox_hwaccel_deps="videotoolbox"
2662 h263_videotoolbox_hwaccel_select="h263_decoder"
2663 h264_cuvid_hwaccel_deps="cuda cuvid"
2664 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2665 h264_d3d11va_hwaccel_deps="d3d11va"
2666 h264_d3d11va_hwaccel_select="h264_decoder"
2667 h264_d3d11va2_hwaccel_deps="d3d11va"
2668 h264_d3d11va2_hwaccel_select="h264_decoder"
2669 h264_dxva2_hwaccel_deps="dxva2"
2670 h264_dxva2_hwaccel_select="h264_decoder"
2671 h264_mediacodec_hwaccel_deps="mediacodec"
2672 h264_mmal_hwaccel_deps="mmal"
2673 h264_nvdec_hwaccel_deps="cuda nvdec"
2674 h264_nvdec_hwaccel_select="h264_decoder"
2675 h264_qsv_hwaccel_deps="libmfx"
2676 h264_vaapi_hwaccel_deps="vaapi"
2677 h264_vaapi_hwaccel_select="h264_decoder"
2678 h264_vdpau_hwaccel_deps="vdpau"
2679 h264_vdpau_hwaccel_select="h264_decoder"
2680 h264_videotoolbox_hwaccel_deps="videotoolbox"
2681 h264_videotoolbox_hwaccel_select="h264_decoder"
2682 hevc_cuvid_hwaccel_deps="cuda cuvid"
2683 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2684 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2685 hevc_d3d11va_hwaccel_select="hevc_decoder"
2686 hevc_mediacodec_hwaccel_deps="mediacodec"
2687 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2688 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2689 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2690 hevc_dxva2_hwaccel_select="hevc_decoder"
2691 hevc_nvdec_hwaccel_deps="cuda nvdec"
2692 hevc_nvdec_hwaccel_select="hevc_decoder"
2693 hevc_qsv_hwaccel_deps="libmfx"
2694 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2695 hevc_vaapi_hwaccel_select="hevc_decoder"
2696 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2697 hevc_vdpau_hwaccel_select="hevc_decoder"
2698 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2699 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2700 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2701 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2702 mpeg_xvmc_hwaccel_deps="xvmc"
2703 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2704 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2705 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2706 mpeg1_vdpau_hwaccel_deps="vdpau"
2707 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2708 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2709 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2710 mpeg1_xvmc_hwaccel_deps="xvmc"
2711 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2712 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2713 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2714 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2715 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2716 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2717 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2718 mpeg2_dxva2_hwaccel_deps="dxva2"
2719 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2720 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2721 mpeg2_mmal_hwaccel_deps="mmal"
2722 mpeg2_qsv_hwaccel_deps="libmfx"
2723 mpeg2_vaapi_hwaccel_deps="vaapi"
2724 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2725 mpeg2_vdpau_hwaccel_deps="vdpau"
2726 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2727 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2728 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2729 mpeg2_xvmc_hwaccel_deps="xvmc"
2730 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2731 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2732 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2733 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2734 mpeg4_mmal_hwaccel_deps="mmal"
2735 mpeg4_vaapi_hwaccel_deps="vaapi"
2736 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2737 mpeg4_vdpau_hwaccel_deps="vdpau"
2738 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2739 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2740 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2741 vc1_cuvid_hwaccel_deps="cuda cuvid"
2742 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2743 vc1_d3d11va_hwaccel_deps="d3d11va"
2744 vc1_d3d11va_hwaccel_select="vc1_decoder"
2745 vc1_d3d11va2_hwaccel_deps="d3d11va"
2746 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2747 vc1_dxva2_hwaccel_deps="dxva2"
2748 vc1_dxva2_hwaccel_select="vc1_decoder"
2749 vc1_mmal_hwaccel_deps="mmal"
2750 vc1_qsv_hwaccel_deps="libmfx"
2751 vc1_vaapi_hwaccel_deps="vaapi"
2752 vc1_vaapi_hwaccel_select="vc1_decoder"
2753 vc1_vdpau_hwaccel_deps="vdpau"
2754 vc1_vdpau_hwaccel_select="vc1_decoder"
2755 vp8_cuvid_hwaccel_deps="cuda cuvid"
2756 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2757 vp9_cuvid_hwaccel_deps="cuda cuvid"
2758 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2759 vp8_mediacodec_hwaccel_deps="mediacodec"
2760 vp8_qsv_hwaccel_deps="libmfx"
2761 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2762 vp9_d3d11va_hwaccel_select="vp9_decoder"
2763 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2764 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2765 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2766 vp9_dxva2_hwaccel_select="vp9_decoder"
2767 vp9_mediacodec_hwaccel_deps="mediacodec"
2768 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2769 vp9_vaapi_hwaccel_select="vp9_decoder"
2770 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2771 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2772 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2773 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2774 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2775
2776 # hardware-accelerated codecs
2777 omx_deps="libdl pthreads"
2778 omx_rpi_select="omx"
2779 qsv_deps="libmfx"
2780 qsvdec_select="qsv"
2781 qsvenc_select="qsv"
2782 qsvvpp_select="qsv"
2783 vaapi_encode_deps="vaapi"
2784 v4l2_m2m_deps_any="linux_videodev2_h"
2785
2786 hwupload_cuda_filter_deps="cuda"
2787 scale_npp_filter_deps="cuda libnpp"
2788 scale_cuda_filter_deps="cuda_sdk"
2789 thumbnail_cuda_filter_deps="cuda_sdk"
2790
2791 nvenc_deps="cuda"
2792 nvenc_deps_any="libdl LoadLibrary"
2793 nvenc_encoder_deps="nvenc"
2794
2795 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2796 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2797 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2798 h264_cuvid_decoder_deps="cuda cuvid"
2799 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2800 h264_mediacodec_decoder_deps="mediacodec"
2801 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2802 h264_mmal_decoder_deps="mmal"
2803 h264_nvenc_encoder_deps="nvenc"
2804 h264_omx_encoder_deps="omx"
2805 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2806 h264_qsv_encoder_select="qsvenc"
2807 h264_rkmpp_decoder_deps="rkmpp"
2808 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2809 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2810 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2811 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2812 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2813 hevc_cuvid_decoder_deps="cuda cuvid"
2814 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2815 hevc_mediacodec_decoder_deps="mediacodec"
2816 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2817 hevc_nvenc_encoder_deps="nvenc"
2818 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2819 hevc_qsv_encoder_select="hevcparse qsvenc"
2820 hevc_rkmpp_decoder_deps="rkmpp"
2821 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2822 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2823 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2824 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2825 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2826 mjpeg_cuvid_decoder_deps="cuda cuvid"
2827 mjpeg_qsv_encoder_deps="libmfx"
2828 mjpeg_qsv_encoder_select="qsvenc"
2829 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2830 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2831 mpeg1_cuvid_decoder_deps="cuda cuvid"
2832 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2833 mpeg2_crystalhd_decoder_select="crystalhd"
2834 mpeg2_cuvid_decoder_deps="cuda cuvid"
2835 mpeg2_mmal_decoder_deps="mmal"
2836 mpeg2_mediacodec_decoder_deps="mediacodec"
2837 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2838 mpeg2_qsv_encoder_select="qsvenc"
2839 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2840 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2841 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2842 mpeg4_crystalhd_decoder_select="crystalhd"
2843 mpeg4_cuvid_decoder_deps="cuda cuvid"
2844 mpeg4_mediacodec_decoder_deps="mediacodec"
2845 mpeg4_mmal_decoder_deps="mmal"
2846 mpeg4_omx_encoder_deps="omx"
2847 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2848 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2849 msmpeg4_crystalhd_decoder_select="crystalhd"
2850 nvenc_h264_encoder_select="h264_nvenc_encoder"
2851 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2852 vc1_crystalhd_decoder_select="crystalhd"
2853 vc1_cuvid_decoder_deps="cuda cuvid"
2854 vc1_mmal_decoder_deps="mmal"
2855 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2856 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2857 vp8_cuvid_decoder_deps="cuda cuvid"
2858 vp8_mediacodec_decoder_deps="mediacodec"
2859 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2860 vp8_rkmpp_decoder_deps="rkmpp"
2861 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2862 vp8_vaapi_encoder_select="vaapi_encode"
2863 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2864 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2865 vp9_cuvid_decoder_deps="cuda cuvid"
2866 vp9_mediacodec_decoder_deps="mediacodec"
2867 vp9_rkmpp_decoder_deps="rkmpp"
2868 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2869 vp9_vaapi_encoder_select="vaapi_encode"
2870 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2871 wmv3_crystalhd_decoder_select="crystalhd"
2872
2873 # parsers
2874 aac_parser_select="adts_header"
2875 h264_parser_select="golomb h264dsp h264parse"
2876 hevc_parser_select="hevcparse"
2877 mpegaudio_parser_select="mpegaudioheader"
2878 mpegvideo_parser_select="mpegvideo"
2879 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2880 vc1_parser_select="vc1dsp"
2881
2882 # bitstream_filters
2883 aac_adtstoasc_bsf_select="adts_header"
2884 h264_metadata_bsf_select="cbs_h264"
2885 h264_redundant_pps_bsf_select="cbs_h264"
2886 hevc_metadata_bsf_select="cbs_h265"
2887 mjpeg2jpeg_bsf_select="jpegtables"
2888 mpeg2_metadata_bsf_select="cbs_mpeg2"
2889 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2890
2891 # external libraries
2892 aac_at_decoder_deps="audiotoolbox"
2893 ac3_at_decoder_deps="audiotoolbox"
2894 ac3_at_decoder_select="ac3_parser"
2895 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2896 alac_at_decoder_deps="audiotoolbox"
2897 amr_nb_at_decoder_deps="audiotoolbox"
2898 avisynth_deps_any="libdl LoadLibrary"
2899 avisynth_demuxer_deps="avisynth"
2900 avisynth_demuxer_select="riffdec"
2901 eac3_at_decoder_deps="audiotoolbox"
2902 eac3_at_decoder_select="ac3_parser"
2903 gsm_ms_at_decoder_deps="audiotoolbox"
2904 ilbc_at_decoder_deps="audiotoolbox"
2905 mp1_at_decoder_deps="audiotoolbox"
2906 mp2_at_decoder_deps="audiotoolbox"
2907 mp3_at_decoder_deps="audiotoolbox"
2908 mp1_at_decoder_select="mpegaudioheader"
2909 mp2_at_decoder_select="mpegaudioheader"
2910 mp3_at_decoder_select="mpegaudioheader"
2911 pcm_alaw_at_decoder_deps="audiotoolbox"
2912 pcm_mulaw_at_decoder_deps="audiotoolbox"
2913 qdmc_at_decoder_deps="audiotoolbox"
2914 qdm2_at_decoder_deps="audiotoolbox"
2915 aac_at_encoder_deps="audiotoolbox"
2916 aac_at_encoder_select="audio_frame_queue"
2917 alac_at_encoder_deps="audiotoolbox"
2918 alac_at_encoder_select="audio_frame_queue"
2919 ilbc_at_encoder_deps="audiotoolbox"
2920 ilbc_at_encoder_select="audio_frame_queue"
2921 pcm_alaw_at_encoder_deps="audiotoolbox"
2922 pcm_alaw_at_encoder_select="audio_frame_queue"
2923 pcm_mulaw_at_encoder_deps="audiotoolbox"
2924 pcm_mulaw_at_encoder_select="audio_frame_queue"
2925 chromaprint_muxer_deps="chromaprint"
2926 h264_videotoolbox_encoder_deps="pthreads"
2927 h264_videotoolbox_encoder_select="videotoolbox_encoder"
2928 libcelt_decoder_deps="libcelt"
2929 libfdk_aac_decoder_deps="libfdk_aac"
2930 libfdk_aac_encoder_deps="libfdk_aac"
2931 libfdk_aac_encoder_select="audio_frame_queue"
2932 libgme_demuxer_deps="libgme"
2933 libgsm_decoder_deps="libgsm"
2934 libgsm_encoder_deps="libgsm"
2935 libgsm_ms_decoder_deps="libgsm"
2936 libgsm_ms_encoder_deps="libgsm"
2937 libilbc_decoder_deps="libilbc"
2938 libilbc_encoder_deps="libilbc"
2939 libkvazaar_encoder_deps="libkvazaar"
2940 libmodplug_demuxer_deps="libmodplug"
2941 libmp3lame_encoder_deps="libmp3lame"
2942 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2943 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2944 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2945 libopencore_amrnb_encoder_select="audio_frame_queue"
2946 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2947 libopenh264_decoder_deps="libopenh264"
2948 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2949 libopenh264_encoder_deps="libopenh264"
2950 libopenjpeg_decoder_deps="libopenjpeg"
2951 libopenjpeg_encoder_deps="libopenjpeg"
2952 libopenmpt_demuxer_deps="libopenmpt"
2953 libopus_decoder_deps="libopus"
2954 libopus_encoder_deps="libopus"
2955 libopus_encoder_select="audio_frame_queue"
2956 librsvg_decoder_deps="librsvg"
2957 libshine_encoder_deps="libshine"
2958 libshine_encoder_select="audio_frame_queue"
2959 libspeex_decoder_deps="libspeex"
2960 libspeex_encoder_deps="libspeex"
2961 libspeex_encoder_select="audio_frame_queue"
2962 libtheora_encoder_deps="libtheora"
2963 libtwolame_encoder_deps="libtwolame"
2964 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2965 libvorbis_decoder_deps="libvorbis"
2966 libvorbis_encoder_deps="libvorbis libvorbisenc"
2967 libvorbis_encoder_select="audio_frame_queue"
2968 libvpx_vp8_decoder_deps="libvpx"
2969 libvpx_vp8_encoder_deps="libvpx"
2970 libvpx_vp9_decoder_deps="libvpx"
2971 libvpx_vp9_encoder_deps="libvpx"
2972 libwavpack_encoder_deps="libwavpack"
2973 libwavpack_encoder_select="audio_frame_queue"
2974 libwebp_encoder_deps="libwebp"
2975 libwebp_anim_encoder_deps="libwebp"
2976 libx262_encoder_deps="libx262"
2977 libx264_encoder_deps="libx264"
2978 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2979 libx264rgb_encoder_select="libx264_encoder"
2980 libx265_encoder_deps="libx265"
2981 libxavs_encoder_deps="libxavs"
2982 libxvid_encoder_deps="libxvid"
2983 libzvbi_teletext_decoder_deps="libzvbi"
2984 videotoolbox_suggest="coreservices"
2985 videotoolbox_deps="corefoundation coremedia corevideo"
2986 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2987
2988 # demuxers / muxers
2989 ac3_demuxer_select="ac3_parser"
2990 aiff_muxer_select="iso_media"
2991 asf_demuxer_select="riffdec"
2992 asf_o_demuxer_select="riffdec"
2993 asf_muxer_select="riffenc"
2994 asf_stream_muxer_select="asf_muxer"
2995 avi_demuxer_select="iso_media riffdec exif"
2996 avi_muxer_select="riffenc"
2997 caf_demuxer_select="iso_media riffdec"
2998 caf_muxer_select="iso_media"
2999 dash_muxer_select="mp4_muxer"
3000 dash_demuxer_deps="libxml2"
3001 dirac_demuxer_select="dirac_parser"
3002 dts_demuxer_select="dca_parser"
3003 dtshd_demuxer_select="dca_parser"
3004 dv_demuxer_select="dvprofile"
3005 dv_muxer_select="dvprofile"
3006 dxa_demuxer_select="riffdec"
3007 eac3_demuxer_select="ac3_parser"
3008 f4v_muxer_select="mov_muxer"
3009 fifo_muxer_deps="threads"
3010 flac_demuxer_select="flac_parser"
3011 hds_muxer_select="flv_muxer"
3012 hls_muxer_select="mpegts_muxer"
3013 hls_muxer_suggest="gcrypt openssl"
3014 image2_alias_pix_demuxer_select="image2_demuxer"
3015 image2_brender_pix_demuxer_select="image2_demuxer"
3016 ipod_muxer_select="mov_muxer"
3017 ismv_muxer_select="mov_muxer"
3018 matroska_audio_muxer_select="matroska_muxer"
3019 matroska_demuxer_select="iso_media riffdec"
3020 matroska_demuxer_suggest="bzlib lzo zlib"
3021 matroska_muxer_select="iso_media riffenc"
3022 mmf_muxer_select="riffenc"
3023 mov_demuxer_select="iso_media riffdec"
3024 mov_demuxer_suggest="zlib"
3025 mov_muxer_select="iso_media riffenc rtpenc_chain"
3026 mp3_demuxer_select="mpegaudio_parser"
3027 mp3_muxer_select="mpegaudioheader"
3028 mp4_muxer_select="mov_muxer"
3029 mpegts_demuxer_select="iso_media"
3030 mpegts_muxer_select="adts_muxer latm_muxer"
3031 mpegtsraw_demuxer_select="mpegts_demuxer"
3032 mxf_d10_muxer_select="mxf_muxer"
3033 mxf_opatom_muxer_select="mxf_muxer"
3034 nut_muxer_select="riffenc"
3035 nuv_demuxer_select="riffdec"
3036 oga_muxer_select="ogg_muxer"
3037 ogg_demuxer_select="dirac_parse"
3038 ogv_muxer_select="ogg_muxer"
3039 opus_muxer_select="ogg_muxer"
3040 psp_muxer_select="mov_muxer"
3041 rtp_demuxer_select="sdp_demuxer"
3042 rtp_muxer_select="golomb"
3043 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3044 rtsp_demuxer_select="http_protocol rtpdec"
3045 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3046 sap_demuxer_select="sdp_demuxer"
3047 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3048 sdp_demuxer_select="rtpdec"
3049 smoothstreaming_muxer_select="ismv_muxer"
3050 spdif_demuxer_select="adts_header"
3051 spdif_muxer_select="adts_header"
3052 spx_muxer_select="ogg_muxer"
3053 swf_demuxer_suggest="zlib"
3054 tak_demuxer_select="tak_parser"
3055 tg2_muxer_select="mov_muxer"
3056 tgp_muxer_select="mov_muxer"
3057 vobsub_demuxer_select="mpegps_demuxer"
3058 w64_demuxer_select="wav_demuxer"
3059 w64_muxer_select="wav_muxer"
3060 wav_demuxer_select="riffdec"
3061 wav_muxer_select="riffenc"
3062 webm_muxer_select="iso_media riffenc"
3063 webm_dash_manifest_demuxer_select="matroska_demuxer"
3064 wtv_demuxer_select="mpegts_demuxer riffdec"
3065 wtv_muxer_select="mpegts_muxer riffenc"
3066 xmv_demuxer_select="riffdec"
3067 xwma_demuxer_select="riffdec"
3068
3069 # indevs / outdevs
3070 alsa_indev_deps="alsa"
3071 alsa_outdev_deps="alsa"
3072 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3073 avfoundation_indev_suggest="coregraphics applicationservices"
3074 avfoundation_indev_extralibs="-framework Foundation"
3075 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3076 caca_outdev_deps="libcaca"
3077 decklink_deps_any="libdl LoadLibrary"
3078 decklink_indev_deps="decklink threads"
3079 decklink_indev_extralibs="-lstdc++"
3080 decklink_outdev_deps="decklink threads"
3081 decklink_outdev_extralibs="-lstdc++"
3082 libndi_newtek_indev_deps="libndi_newtek"
3083 libndi_newtek_indev_extralibs="-lndi"
3084 libndi_newtek_outdev_deps="libndi_newtek"
3085 libndi_newtek_outdev_extralibs="-lndi"
3086 dshow_indev_deps="IBaseFilter"
3087 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3088 fbdev_indev_deps="linux_fb_h"
3089 fbdev_outdev_deps="linux_fb_h"
3090 gdigrab_indev_deps="CreateDIBSection"
3091 gdigrab_indev_extralibs="-lgdi32"
3092 gdigrab_indev_select="bmp_decoder"
3093 iec61883_indev_deps="libiec61883"
3094 jack_indev_deps="libjack"
3095 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3096 kmsgrab_indev_deps="libdrm"
3097 lavfi_indev_deps="avfilter"
3098 libcdio_indev_deps="libcdio"
3099 libdc1394_indev_deps="libdc1394"
3100 openal_indev_deps="openal"
3101 opengl_outdev_deps="opengl"
3102 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3103 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3104 pulse_indev_deps="libpulse"
3105 pulse_outdev_deps="libpulse"
3106 sdl2_outdev_deps="sdl2"
3107 sndio_indev_deps="sndio"
3108 sndio_outdev_deps="sndio"
3109 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3110 v4l2_indev_suggest="libv4l2"
3111 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3112 v4l2_outdev_suggest="libv4l2"
3113 vfwcap_indev_deps="vfw32 vfwcap_defines"
3114 xcbgrab_indev_deps="libxcb"
3115 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3116 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3117 xv_outdev_extralibs="-lXv -lX11 -lXext"
3118
3119 # protocols
3120 async_protocol_deps="threads"
3121 bluray_protocol_deps="libbluray"
3122 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3123 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3124 ffrtmpcrypt_protocol_select="tcp_protocol"
3125 ffrtmphttp_protocol_conflict="librtmp_protocol"
3126 ffrtmphttp_protocol_select="http_protocol"
3127 ftp_protocol_select="tcp_protocol"
3128 gopher_protocol_select="network"
3129 http_protocol_select="tcp_protocol"
3130 http_protocol_suggest="zlib"
3131 httpproxy_protocol_select="tcp_protocol"
3132 httpproxy_protocol_suggest="zlib"
3133 https_protocol_select="tls_protocol"
3134 https_protocol_suggest="zlib"
3135 icecast_protocol_select="http_protocol"
3136 librtmp_protocol_deps="librtmp"
3137 librtmpe_protocol_deps="librtmp"
3138 librtmps_protocol_deps="librtmp"
3139 librtmpt_protocol_deps="librtmp"
3140 librtmpte_protocol_deps="librtmp"
3141 libsmbclient_protocol_deps="libsmbclient gplv3"
3142 libssh_protocol_deps="libssh"
3143 mmsh_protocol_select="http_protocol"
3144 mmst_protocol_select="network"
3145 rtmp_protocol_conflict="librtmp_protocol"
3146 rtmp_protocol_select="tcp_protocol"
3147 rtmp_protocol_suggest="zlib"
3148 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3149 rtmpe_protocol_suggest="zlib"
3150 rtmps_protocol_conflict="librtmp_protocol"
3151 rtmps_protocol_select="tls_protocol"
3152 rtmps_protocol_suggest="zlib"
3153 rtmpt_protocol_select="ffrtmphttp_protocol"
3154 rtmpt_protocol_suggest="zlib"
3155 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3156 rtmpte_protocol_suggest="zlib"
3157 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3158 rtmpts_protocol_suggest="zlib"
3159 rtp_protocol_select="udp_protocol"
3160 schannel_conflict="openssl gnutls"
3161 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3162 sctp_protocol_select="network"
3163 securetransport_conflict="openssl gnutls"
3164 srtp_protocol_select="rtp_protocol srtp"
3165 tcp_protocol_select="network"
3166 tls_protocol_deps_any="gnutls openssl schannel securetransport"
3167 tls_protocol_select="tcp_protocol"
3168 udp_protocol_select="network"
3169 udplite_protocol_select="network"
3170 unix_protocol_deps="sys_un_h"
3171 unix_protocol_select="network"
3172
3173 # filters
3174 afftfilt_filter_deps="avcodec"
3175 afftfilt_filter_select="fft"
3176 afir_filter_deps="avcodec"
3177 afir_filter_select="fft"
3178 amovie_filter_deps="avcodec avformat"
3179 aresample_filter_deps="swresample"
3180 ass_filter_deps="libass"
3181 atempo_filter_deps="avcodec"
3182 atempo_filter_select="rdft"
3183 azmq_filter_deps="libzmq"
3184 blackframe_filter_deps="gpl"
3185 boxblur_filter_deps="gpl"
3186 bs2b_filter_deps="libbs2b"
3187 colormatrix_filter_deps="gpl"
3188 coreimage_filter_deps="coreimage appkit"
3189 coreimage_filter_extralibs="-framework OpenGL"
3190 coreimagesrc_filter_deps="coreimage appkit"
3191 coreimagesrc_filter_extralibs="-framework OpenGL"
3192 cover_rect_filter_deps="avcodec avformat gpl"
3193 cropdetect_filter_deps="gpl"
3194 deinterlace_qsv_filter_deps="libmfx"
3195 deinterlace_vaapi_filter_deps="vaapi"
3196 delogo_filter_deps="gpl"
3197 deshake_filter_select="pixelutils"
3198 deshake_filter_suggest="opencl"
3199 drawtext_filter_deps="libfreetype"
3200 drawtext_filter_suggest="libfontconfig libfribidi"
3201 elbg_filter_deps="avcodec"
3202 eq_filter_deps="gpl"
3203 fftfilt_filter_deps="avcodec"
3204 fftfilt_filter_select="rdft"
3205 find_rect_filter_deps="avcodec avformat gpl"
3206 firequalizer_filter_deps="avcodec"
3207 firequalizer_filter_select="rdft"
3208 flite_filter_deps="libflite"
3209 framerate_filter_select="pixelutils"
3210 frei0r_filter_deps="frei0r libdl"
3211 frei0r_src_filter_deps="frei0r libdl"
3212 fspp_filter_deps="gpl"
3213 geq_filter_deps="gpl"
3214 histeq_filter_deps="gpl"
3215 hqdn3d_filter_deps="gpl"
3216 interlace_filter_deps="gpl"
3217 kerndeint_filter_deps="gpl"
3218 ladspa_filter_deps="ladspa libdl"
3219 mcdeint_filter_deps="avcodec gpl"
3220 movie_filter_deps="avcodec avformat"
3221 mpdecimate_filter_deps="gpl"
3222 mpdecimate_filter_select="pixelutils"
3223 mptestsrc_filter_deps="gpl"
3224 negate_filter_deps="lut_filter"
3225 nnedi_filter_deps="gpl"
3226 ocr_filter_deps="libtesseract"
3227 ocv_filter_deps="libopencv"
3228 overlay_qsv_filter_deps="libmfx"
3229 overlay_qsv_filter_select="qsvvpp"
3230 owdenoise_filter_deps="gpl"
3231 pan_filter_deps="swresample"
3232 perspective_filter_deps="gpl"
3233 phase_filter_deps="gpl"
3234 pp7_filter_deps="gpl"
3235 pp_filter_deps="gpl postproc"
3236 pullup_filter_deps="gpl"
3237 removelogo_filter_deps="avcodec avformat swscale"
3238 repeatfields_filter_deps="gpl"
3239 resample_filter_deps="avresample"
3240 rubberband_filter_deps="librubberband"
3241 sab_filter_deps="gpl swscale"
3242 scale2ref_filter_deps="swscale"
3243 scale_filter_deps="swscale"
3244 scale_qsv_filter_deps="libmfx"
3245 select_filter_select="pixelutils"
3246 showcqt_filter_deps="avcodec avformat swscale"
3247 showcqt_filter_suggest="libfontconfig libfreetype"
3248 showcqt_filter_select="fft"
3249 showfreqs_filter_deps="avcodec"
3250 showfreqs_filter_select="fft"
3251 showspectrum_filter_deps="avcodec"
3252 showspectrum_filter_select="fft"
3253 showspectrumpic_filter_deps="avcodec"
3254 showspectrumpic_filter_select="fft"
3255 signature_filter_deps="gpl avcodec avformat"
3256 smartblur_filter_deps="gpl swscale"
3257 sofalizer_filter_deps="libmysofa avcodec"
3258 sofalizer_filter_select="fft"
3259 spectrumsynth_filter_deps="avcodec"
3260 spectrumsynth_filter_select="fft"
3261 spp_filter_deps="gpl avcodec"
3262 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3263 stereo3d_filter_deps="gpl"
3264 subtitles_filter_deps="avformat avcodec libass"
3265 super2xsai_filter_deps="gpl"
3266 pixfmts_super2xsai_test_deps="super2xsai_filter"
3267 tinterlace_filter_deps="gpl"
3268 tinterlace_merge_test_deps="tinterlace_filter"
3269 tinterlace_pad_test_deps="tinterlace_filter"
3270 tonemap_filter_deps="const_nan"
3271 uspp_filter_deps="gpl avcodec"
3272 unsharp_filter_suggest="opencl"
3273 vaguedenoiser_filter_deps="gpl"
3274 vidstabdetect_filter_deps="libvidstab"
3275 vidstabtransform_filter_deps="libvidstab"
3276 libvmaf_filter_deps="libvmaf"
3277 zmq_filter_deps="libzmq"
3278 zoompan_filter_deps="swscale"
3279 zscale_filter_deps="libzimg const_nan"
3280 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3281 vpp_qsv_filter_deps="libmfx"
3282 vpp_qsv_filter_select="qsvvpp"
3283
3284 # examples
3285 avio_dir_cmd_deps="avformat avutil"
3286 avio_reading_deps="avformat avcodec avutil"
3287 decode_audio_example_deps="avcodec avutil"
3288 decode_video_example_deps="avcodec avutil"
3289 demuxing_decoding_example_deps="avcodec avformat avutil"
3290 encode_audio_example_deps="avcodec avutil"
3291 encode_video_example_deps="avcodec avutil"
3292 extract_mvs_example_deps="avcodec avformat avutil"
3293 filter_audio_example_deps="avfilter avutil"
3294 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3295 filtering_video_example_deps="avfilter avcodec avformat avutil"
3296 http_multiclient_example_deps="avformat avutil fork"
3297 hw_decode_example_deps="avcodec avformat avutil"
3298 metadata_example_deps="avformat avutil"
3299 muxing_example_deps="avcodec avformat avutil swscale"
3300 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3301 remuxing_example_deps="avcodec avformat avutil"
3302 resampling_audio_example_deps="avutil swresample"
3303 scaling_video_example_deps="avutil swscale"
3304 transcode_aac_example_deps="avcodec avformat swresample"
3305 transcoding_example_deps="avfilter avcodec avformat avutil"
3306
3307 # EXTRALIBS_LIST
3308 cpu_init_extralibs="pthreads_extralibs"
3309 cws2fws_extralibs="zlib_extralibs"
3310
3311 # libraries, in linking order
3312 avcodec_deps="avutil"
3313 avcodec_suggest="libm"
3314 avcodec_select="null_bsf"
3315 avdevice_deps="avformat avcodec avutil"
3316 avdevice_suggest="libm"
3317 avfilter_deps="avutil"
3318 avfilter_suggest="libm"
3319 avformat_deps="avcodec avutil"
3320 avformat_suggest="libm network zlib"
3321 avresample_deps="avutil"
3322 avresample_suggest="libm"
3323 avutil_suggest="clock_gettime cuda libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia wincrypt"
3324 postproc_deps="avutil gpl"
3325 postproc_suggest="libm"
3326 swresample_deps="avutil"
3327 swresample_suggest="libm libsoxr"
3328 swscale_deps="avutil"
3329 swscale_suggest="libm"
3330
3331 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3332 avfilter_extralibs="pthreads_extralibs"
3333 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3334
3335 # programs
3336 ffmpeg_deps="avcodec avfilter avformat swresample"
3337 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3338                null_filter
3339                trim_filter"
3340 ffmpeg_suggest="ole32 psapi shell32"
3341 ffplay_deps="avcodec avformat swscale swresample sdl2"
3342 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3343 ffplay_suggest="shell32"
3344 ffprobe_deps="avcodec avformat"
3345 ffprobe_suggest="shell32"
3346 ffserver_deps="avformat fork sarestart"
3347 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3348
3349 # documentation
3350 podpages_deps="perl"
3351 manpages_deps="perl pod2man"
3352 htmlpages_deps="perl"
3353 htmlpages_deps_any="makeinfo_html texi2html"
3354 txtpages_deps="perl makeinfo"
3355 doc_deps_any="manpages htmlpages podpages txtpages"
3356
3357 # default parameters
3358
3359 logfile="ffbuild/config.log"
3360
3361 # installation paths
3362 prefix_default="/usr/local"
3363 bindir_default='${prefix}/bin'
3364 datadir_default='${prefix}/share/ffmpeg'
3365 docdir_default='${prefix}/share/doc/ffmpeg'
3366 incdir_default='${prefix}/include'
3367 libdir_default='${prefix}/lib'
3368 mandir_default='${prefix}/share/man'
3369
3370 # toolchain
3371 ar_default="ar"
3372 cc_default="gcc"
3373 cxx_default="g++"
3374 host_cc_default="gcc"
3375 doxygen_default="doxygen"
3376 install="install"
3377 ln_s_default="ln -s -f"
3378 nm_default="nm -g"
3379 pkg_config_default=pkg-config
3380 ranlib_default="ranlib"
3381 strip_default="strip"
3382 version_script='--version-script'
3383 x86asmexe_default="nasm"
3384 windres_default="windres"
3385 nvcc_default="nvcc"
3386 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3387 striptype="direct"
3388
3389 # OS
3390 target_os_default=$(tolower $(uname -s))
3391 host_os=$target_os_default
3392
3393 # machine
3394 if test "$target_os_default" = aix; then
3395     arch_default=$(uname -p)
3396     strip_default="strip -X32_64"
3397 else
3398     arch_default=$(uname -m)
3399 fi
3400 cpu="generic"
3401 intrinsics="none"
3402
3403 # configurable options
3404 enable $PROGRAM_LIST
3405 enable $DOCUMENT_LIST
3406 enable $EXAMPLE_LIST
3407 enable $(filter_out avresample $LIBRARY_LIST)
3408 enable stripping
3409
3410 enable asm
3411 enable debug
3412 enable doc
3413 enable faan faandct faanidct
3414 enable optimizations
3415 enable runtime_cpudetect
3416 enable safe_bitstream_reader
3417 enable static
3418 enable swscale_alpha
3419 enable valgrind_backtrace
3420
3421 sws_max_filter_size_default=256
3422 set_default sws_max_filter_size
3423
3424 # internal components are enabled by default
3425 enable $EXTRALIBS_LIST
3426
3427 # Avoid external, non-system, libraries getting enabled by dependency resolution
3428 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3429
3430 # build settings
3431 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3432 LIBPREF="lib"
3433 LIBSUF=".a"
3434 FULLNAME='$(NAME)$(BUILDSUF)'
3435 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3436 SLIBPREF="lib"
3437 SLIBSUF=".so"
3438 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3439 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3440 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3441 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3442 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3443 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3444 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3445
3446 asflags_filter=echo
3447 cflags_filter=echo
3448 ldflags_filter=echo
3449
3450 AS_C='-c'
3451 AS_O='-o $@'
3452 CC_C='-c'
3453 CC_E='-E -o $@'
3454 CC_O='-o $@'
3455 CXX_C='-c'
3456 CXX_O='-o $@'
3457 OBJCC_C='-c'
3458 OBJCC_E='-E -o $@'
3459 OBJCC_O='-o $@'
3460 X86ASM_O='-o $@'
3461 LD_O='-o $@'
3462 LD_LIB='-l%'
3463 LD_PATH='-L'
3464 HOSTCC_C='-c'
3465 HOSTCC_E='-E -o $@'
3466 HOSTCC_O='-o $@'
3467 HOSTLD_O='-o $@'
3468 NVCC_C='-c'
3469 NVCC_O='-o $@'
3470
3471 host_extralibs='-lm'
3472 host_cflags_filter=echo
3473 host_ldflags_filter=echo
3474
3475 target_path='$(CURDIR)'
3476
3477 # since the object filename is not given with the -MM flag, the compiler
3478 # is only able to print the basename, and we must add the path ourselves
3479 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3480 DEPFLAGS='-MM'
3481
3482 mkdir -p ffbuild
3483
3484 # find source path
3485 if test -f configure; then
3486     source_path=.
3487 else
3488     source_path=$(cd $(dirname "$0"); pwd)
3489     case "$source_path" in
3490         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3491     esac
3492     test -e "$source_path/config.h" &&
3493         die "Out of tree builds are impossible with config.h in source dir."
3494 fi
3495
3496 for v in "$@"; do
3497     r=${v#*=}
3498     l=${v%"$r"}
3499     r=$(sh_quote "$r")
3500     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3501 done
3502
3503 find_things(){
3504     thing=$1
3505     pattern=$2
3506     file=$source_path/$3
3507     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3508 }
3509
3510 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3511 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3512 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3513 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3514 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3515 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3516 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3517 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3518 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3519
3520 find_things_extern(){
3521     thing=$1
3522     pattern=$2
3523     file=$source_path/$3
3524     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3525 }
3526
3527 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3528 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3529
3530 AVCODEC_COMPONENTS_LIST="
3531     $BSF_LIST
3532     $DECODER_LIST
3533     $ENCODER_LIST
3534     $HWACCEL_LIST
3535     $PARSER_LIST
3536 "
3537
3538 AVDEVICE_COMPONENTS_LIST="
3539     $INDEV_LIST
3540     $OUTDEV_LIST
3541 "
3542
3543 AVFILTER_COMPONENTS_LIST="
3544     $FILTER_LIST
3545 "
3546
3547 AVFORMAT_COMPONENTS_LIST="
3548     $DEMUXER_LIST
3549     $MUXER_LIST
3550     $PROTOCOL_LIST
3551 "
3552
3553 ALL_COMPONENTS="
3554     $AVCODEC_COMPONENTS_LIST
3555     $AVDEVICE_COMPONENTS_LIST
3556     $AVFILTER_COMPONENTS_LIST
3557     $AVFORMAT_COMPONENTS_LIST
3558 "
3559
3560 for n in $COMPONENT_LIST; do
3561     v=$(toupper ${n%s})_LIST
3562     eval enable \$$v
3563     eval ${n}_if_any="\$$v"
3564 done
3565
3566 enable $ARCH_EXT_LIST
3567
3568 die_unknown(){
3569     echo "Unknown option \"$1\"."
3570     echo "See $0 --help for available options."
3571     exit 1
3572 }
3573
3574 print_in_columns() {
3575     cols=$(expr $ncols / 24)
3576     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3577 }
3578
3579 show_list() {
3580     suffix=_$1
3581     shift
3582     echo $* | sed s/$suffix//g | print_in_columns
3583     exit 0
3584 }
3585
3586 rand_list(){
3587     IFS=', '
3588     set -- $*
3589     unset IFS
3590     for thing; do
3591         comp=${thing%:*}
3592         prob=${thing#$comp}
3593         prob=${prob#:}
3594         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3595         echo "prob ${prob:-0.5}"
3596         printf '%s\n' $comp
3597     done
3598 }
3599
3600 do_random(){
3601     action=$1
3602     shift
3603     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3604     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3605 }
3606
3607 for opt do
3608     optval="${opt#*=}"
3609     case "$opt" in
3610         --extra-ldflags=*)
3611             add_ldflags $optval
3612         ;;
3613         --extra-ldexeflags=*)
3614             add_ldexeflags $optval
3615         ;;
3616         --extra-ldsoflags=*)
3617             add_ldsoflags $optval
3618         ;;
3619         --extra-ldlibflags=*)
3620             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3621                  "removed in the future. Use --extra-ldsoflags instead."
3622             add_ldsoflags $optval
3623         ;;
3624         --extra-libs=*)
3625             add_extralibs $optval
3626         ;;
3627         --disable-devices)
3628             disable $INDEV_LIST $OUTDEV_LIST
3629         ;;
3630         --enable-debug=*)
3631             debuglevel="$optval"
3632         ;;
3633         --disable-programs)
3634             disable $PROGRAM_LIST
3635         ;;
3636         --disable-everything)
3637             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3638         ;;
3639         --disable-all)
3640             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3641             disable $LIBRARY_LIST $PROGRAM_LIST doc
3642             enable avutil
3643         ;;
3644         --enable-random|--disable-random)
3645             action=${opt%%-random}
3646             do_random ${action#--} $COMPONENT_LIST
3647         ;;
3648         --enable-random=*|--disable-random=*)
3649             action=${opt%%-random=*}
3650             do_random ${action#--} $optval
3651         ;;
3652         --enable-sdl)
3653             enable sdl2
3654         ;;
3655         --enable-*=*|--disable-*=*)
3656             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3657             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3658             eval list=\$$(toupper $thing)_LIST
3659             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3660             list=$(filter "$name" $list)
3661             [ "$list" = "" ] && warn "Option $opt did not match anything"
3662             $action $list
3663         ;;
3664         --enable-yasm|--disable-yasm)
3665             warn "The ${opt} option is only provided for compatibility and will be\n"\
3666                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3667             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3668         ;;
3669         --yasmexe=*)
3670             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3671                  "removed in the future. Use --x86asmexe instead."
3672             x86asmexe="$optval"
3673         ;;
3674         --enable-?*|--disable-?*)
3675             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3676             if is_in $option $COMPONENT_LIST; then
3677                 test $action = disable && action=unset
3678                 eval $action \$$(toupper ${option%s})_LIST
3679             elif is_in $option $CMDLINE_SELECT; then
3680                 $action $option
3681             else
3682                 die_unknown $opt
3683             fi
3684         ;;
3685         --list-*)
3686             NAME="${opt#--list-}"
3687             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3688             NAME=${NAME%s}
3689             eval show_list $NAME \$$(toupper $NAME)_LIST
3690         ;;
3691         --help|-h) show_help
3692         ;;
3693         --quiet|-q) quiet=yes
3694         ;;
3695         --fatal-warnings) enable fatal_warnings
3696         ;;
3697         --libfuzzer=*)
3698             libfuzzer_path="$optval"
3699         ;;
3700         *)
3701             optname="${opt%%=*}"
3702             optname="${optname#--}"
3703             optname=$(echo "$optname" | sed 's/-/_/g')
3704             if is_in $optname $CMDLINE_SET; then
3705                 eval $optname='$optval'
3706             elif is_in $optname $CMDLINE_APPEND; then
3707                 append $optname "$optval"
3708             else
3709                 die_unknown $opt
3710             fi
3711         ;;
3712     esac
3713 done
3714
3715 for e in $env; do
3716     eval "export $e"
3717 done
3718
3719 if disabled autodetect; then
3720
3721     # Unless iconv is explicitely disabled by the user, we still want to probe
3722     # for the iconv from the libc.
3723     disabled iconv || enable libc_iconv
3724
3725     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3726     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3727 fi
3728 # Mark specifically enabled, but normally autodetected libraries as requested.
3729 for lib in $AUTODETECT_LIBS; do
3730     enabled $lib && request $lib
3731 done
3732 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3733 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3734 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3735
3736 disabled logging && logfile=/dev/null
3737
3738 die_license_disabled() {
3739     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3740 }
3741
3742 die_license_disabled_gpl() {
3743     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3744 }
3745
3746 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3747 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3748
3749 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3750 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3751
3752 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3753
3754 enabled_all gnutls openssl &&
3755     die "GnuTLS and OpenSSL must not be enabled at the same time."
3756
3757 # Disable all the library-specific components if the library itself
3758 # is disabled, see AVCODEC_LIST and following _LIST variables.
3759
3760 disable_components(){
3761     disabled ${1} && disable $(
3762         eval components="\$$(toupper ${1})_COMPONENTS"
3763         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3764     )
3765 }
3766
3767 map 'disable_components $v' $LIBRARY_LIST
3768
3769 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3770 set >> $logfile
3771
3772 test -n "$valgrind" && toolchain="valgrind-memcheck"
3773
3774 enabled ossfuzz && {
3775     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3776     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3777 }
3778
3779 case "$toolchain" in
3780     *-asan)
3781         cc_default="${toolchain%-asan}"
3782         add_cflags  -fsanitize=address
3783         add_ldflags -fsanitize=address
3784     ;;
3785     *-msan)
3786         cc_default="${toolchain%-msan}"
3787         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3788         add_ldflags -fsanitize=memory
3789     ;;
3790     *-tsan)
3791         cc_default="${toolchain%-tsan}"
3792         add_cflags  -fsanitize=thread -fPIE
3793         add_ldflags -fsanitize=thread -pie
3794         case "$toolchain" in
3795             gcc-tsan)
3796                 add_cflags  -fPIC
3797                 add_ldflags -fPIC
3798                 ;;
3799         esac
3800     ;;
3801     *-usan)
3802         cc_default="${toolchain%-usan}"
3803         add_cflags  -fsanitize=undefined
3804         add_ldflags -fsanitize=undefined
3805     ;;
3806     valgrind-*)
3807         target_exec_default="valgrind"
3808         case "$toolchain" in
3809             valgrind-massif)
3810                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3811                 ;;
3812             valgrind-memcheck)
3813                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3814                 ;;
3815         esac
3816     ;;
3817     msvc)
3818         # Check whether the current MSVC version needs the C99 converter.
3819         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3820         # support enough of C99 to build ffmpeg. Default to the new
3821         # behaviour if the regexp was unable to match anything, since this
3822         # successfully parses the version number of existing supported
3823         # versions that require the converter (MSVC 2010 and 2012).
3824         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3825         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3826             cc_default="cl"
3827             cxx_default="cl"
3828         else
3829             cc_default="c99wrap cl"
3830             cxx_default="c99wrap cl"
3831         fi
3832         ld_default="$source_path/compat/windows/mslink"
3833         nm_default="dumpbin -symbols"
3834         ar_default="lib"
3835         case "$arch" in
3836         arm*)
3837             as_default="armasm"
3838             ;;
3839         esac
3840         target_os_default="win32"
3841         # Use a relative path for TMPDIR. This makes sure all the
3842         # ffconf temp files are written with a relative path, avoiding
3843         # issues with msys/win32 path conversion for MSVC parameters
3844         # such as -Fo<file> or -out:<file>.
3845         TMPDIR=.
3846     ;;
3847     icl)
3848         cc_default="icl"
3849         ld_default="xilink"
3850         nm_default="dumpbin -symbols"
3851         ar_default="xilib"
3852         target_os_default="win32"
3853         TMPDIR=.
3854     ;;
3855     gcov)
3856         add_cflags  -fprofile-arcs -ftest-coverage
3857         add_ldflags -fprofile-arcs -ftest-coverage
3858     ;;
3859     llvm-cov)
3860         add_cflags -fprofile-arcs -ftest-coverage
3861         add_ldflags --coverage
3862     ;;
3863     hardened)
3864         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3865         add_cflags   -fno-strict-overflow -fstack-protector-all
3866         add_ldflags  -Wl,-z,relro -Wl,-z,now
3867         add_cflags   -fPIE
3868         add_ldexeflags -fPIE -pie
3869     ;;
3870     ?*)
3871         die "Unknown toolchain $toolchain"
3872     ;;
3873 esac
3874
3875 test -n "$cross_prefix" && enable cross_compile
3876
3877 if enabled cross_compile; then
3878     test -n "$arch" && test -n "$target_os" ||
3879         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3880 fi
3881
3882 ar_default="${cross_prefix}${ar_default}"
3883 cc_default="${cross_prefix}${cc_default}"
3884 cxx_default="${cross_prefix}${cxx_default}"
3885 nm_default="${cross_prefix}${nm_default}"
3886 pkg_config_default="${cross_prefix}${pkg_config_default}"
3887 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3888     ranlib_default="${cross_prefix}${ranlib_default} -D"
3889 else
3890     ranlib_default="${cross_prefix}${ranlib_default}"
3891 fi
3892 strip_default="${cross_prefix}${strip_default}"
3893 windres_default="${cross_prefix}${windres_default}"
3894
3895 sysinclude_default="${sysroot}/usr/include"
3896
3897 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3898     target_exec target_os x86asmexe nvcc
3899 enabled cross_compile || host_cc_default=$cc
3900 set_default host_cc
3901
3902 pkg_config_fail_message=""
3903 if ! $pkg_config --version >/dev/null 2>&1; then
3904     warn "$pkg_config not found, library detection may fail."
3905     pkg_config=false
3906 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3907     pkg_config_fail_message="
3908 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3909 fi
3910
3911 if test $doxygen != $doxygen_default && \
3912   ! $doxygen --version >/dev/null 2>&1; then
3913     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3914 fi
3915
3916 exesuf() {
3917     case $1 in
3918         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3919     esac
3920 }
3921
3922 EXESUF=$(exesuf $target_os)
3923 HOSTEXESUF=$(exesuf $host_os)
3924
3925 # set temporary file name
3926 : ${TMPDIR:=$TEMPDIR}
3927 : ${TMPDIR:=$TMP}
3928 : ${TMPDIR:=/tmp}
3929
3930 if [ -n "$tempprefix" ] ; then
3931     mktemp(){
3932         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3933         echo "$tmpname"
3934         mkdir "$tmpname"
3935     }
3936 elif ! check_cmd mktemp -u XXXXXX; then
3937     # simple replacement for missing mktemp
3938     # NOT SAFE FOR GENERAL USE
3939     mktemp(){
3940         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3941         echo "$tmpname"
3942         mkdir "$tmpname"
3943     }
3944 fi
3945
3946 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3947     die "Unable to create temporary directory in $TMPDIR."
3948
3949 tmpfile(){
3950     tmp="${FFTMPDIR}/test"$2
3951     (set -C; exec > $tmp) 2> /dev/null ||
3952         die "Unable to create temporary file in $FFTMPDIR."
3953     eval $1=$tmp
3954 }
3955
3956 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3957 trap 'exit 2' INT
3958
3959 tmpfile TMPASM .asm
3960 tmpfile TMPC   .c
3961 tmpfile TMPCPP .cpp
3962 tmpfile TMPE   $EXESUF
3963 tmpfile TMPH   .h
3964 tmpfile TMPM   .m
3965 tmpfile TMPO   .o
3966 tmpfile TMPS   .S
3967 tmpfile TMPSH  .sh
3968 tmpfile TMPV   .ver
3969
3970 unset -f mktemp
3971
3972 chmod +x $TMPE
3973
3974 # make sure we can execute files in $TMPDIR
3975 cat > $TMPSH 2>> $logfile <<EOF
3976 #! /bin/sh
3977 EOF
3978 chmod +x $TMPSH >> $logfile 2>&1
3979 if ! $TMPSH >> $logfile 2>&1; then
3980     cat <<EOF
3981 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3982 variable to another directory and make sure that it is not mounted noexec.
3983 EOF
3984     die "Sanity test failed."
3985 fi
3986
3987 armasm_flags(){
3988     for flag; do
3989         case $flag in
3990             # Filter out MSVC cl.exe options from cflags that shouldn't
3991             # be passed to gas-preprocessor
3992             -M[TD]*)                                            ;;
3993             *)                  echo $flag                      ;;
3994         esac
3995    done
3996 }
3997
3998 cparser_flags(){
3999     for flag; do
4000         case $flag in
4001             -Wno-switch)             echo -Wno-switch-enum ;;
4002             -Wno-format-zero-length) ;;
4003             -Wdisabled-optimization) ;;
4004             -Wno-pointer-sign)       echo -Wno-other ;;
4005             *)                       echo $flag ;;
4006         esac
4007     done
4008 }
4009
4010 msvc_common_flags(){
4011     for flag; do
4012         case $flag in
4013             # In addition to specifying certain flags under the compiler
4014             # specific filters, they must be specified here as well or else the
4015             # generic catch all at the bottom will print the original flag.
4016             -Wall)                ;;
4017             -Wextra)              ;;
4018             -std=c99)             ;;
4019             # Common flags
4020             -fomit-frame-pointer) ;;
4021             -g)                   echo -Z7 ;;
4022             -fno-math-errno)      ;;
4023             -fno-common)          ;;
4024             -fno-signed-zeros)    ;;
4025             -fPIC)                ;;
4026             -mthumb)              ;;
4027             -march=*)             ;;
4028             -lz)                  echo zlib.lib ;;
4029             -lx264)               echo libx264.lib ;;
4030             -lstdc++)             ;;
4031             -l*)                  echo ${flag#-l}.lib ;;
4032             -LARGEADDRESSAWARE)   echo $flag ;;
4033             -L*)                  echo -libpath:${flag#-L} ;;
4034             *)                    echo $flag ;;
4035         esac
4036     done
4037 }
4038
4039 msvc_flags(){
4040     msvc_common_flags "$@"
4041     for flag; do
4042         case $flag in
4043             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4044                                        -wd4554 ;;
4045             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4046                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4047                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4048                                        -wd4307 \
4049                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4050         esac
4051     done
4052 }
4053
4054 icl_flags(){
4055     msvc_common_flags "$@"
4056     for flag; do
4057         case $flag in
4058             # Despite what Intel's documentation says -Wall, which is supported
4059             # on Windows, does enable remarks so disable them here.
4060             -Wall)                echo $flag -Qdiag-disable:remark ;;
4061             -std=c99)             echo -Qstd=c99 ;;
4062             -flto)                echo -ipo ;;
4063         esac
4064     done
4065 }
4066
4067 icc_flags(){
4068     for flag; do
4069         case $flag in
4070             -flto)                echo -ipo ;;
4071             *)                    echo $flag ;;
4072         esac
4073     done
4074 }
4075
4076 pgi_flags(){
4077     for flag; do
4078         case $flag in
4079             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
4080             -fomit-frame-pointer) echo -Mnoframe ;;
4081             -g)                   echo -gopt ;;
4082             *)                    echo $flag ;;
4083         esac
4084     done
4085 }
4086
4087 suncc_flags(){
4088     for flag; do
4089         case $flag in
4090             -march=*|-mcpu=*)
4091                 case "${flag#*=}" in
4092                     native)                   echo -xtarget=native       ;;
4093                     v9|niagara)               echo -xarch=sparc          ;;
4094                     ultrasparc)               echo -xarch=sparcvis       ;;
4095                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4096                     i586|pentium)             echo -xchip=pentium        ;;
4097                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4098                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4099                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4100                     pentium4*)          echo -xtarget=pentium4           ;;
4101                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4102                     *-sse3)             echo -xarch=sse3                 ;;
4103                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4104                     bonnell)                   echo -xarch=ssse3         ;;
4105                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4106                     westmere)                  echo -xtarget=westmere    ;;
4107                     silvermont)                echo -xarch=sse4_2        ;;
4108                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4109                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4110                                                echo -xarch=avx           ;;
4111                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4112                     btver1)                    echo -xarch=amdsse4a      ;;
4113                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4114                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4115                     k8|opteron|athlon64|athlon-fx)
4116                                                echo -xarch=sse2a         ;;
4117                     athlon*)                   echo -xarch=pentium_proa  ;;
4118                 esac
4119                 ;;
4120             -std=c99)             echo -xc99              ;;
4121             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4122             -fPIC)                echo -KPIC -xcode=pic32 ;;
4123             -W*,*)                echo $flag              ;;
4124             -f*-*|-W*|-mimpure-text)                      ;;
4125             -shared)              echo -G                 ;;
4126             *)                    echo $flag              ;;
4127         esac
4128     done
4129 }
4130
4131 tms470_flags(){
4132     for flag; do
4133         case $flag in