b07cef182cdc64d72a8a3dc1f0fac048856d9571
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112   --disable-autodetect     disable automatically detected external libraries [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188   --disable-v4l2_m2m       disable V4L2 mem2mem code [autodetect]
189
190 External library support:
191
192   Using any of the following switches will allow FFmpeg to link to the
193   corresponding external library. All the components depending on that library
194   will become enabled, if all their other dependencies are met and they are not
195   explicitly disabled. E.g. --enable-libwavpack will enable linking to
196   libwavpack and allow the libwavpack encoder to be built, unless it is
197   specifically disabled with --disable-encoder=libwavpack.
198
199   Note that only the system libraries are auto-detected. All the other external
200   libraries must be explicitly enabled.
201
202   Also note that the following help text describes the purpose of the libraries
203   themselves, not all their features will necessarily be usable by FFmpeg.
204
205   --disable-alsa           disable ALSA support [autodetect]
206   --disable-appkit         disable Apple AppKit framework [autodetect]
207   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
208   --enable-avisynth        enable reading of AviSynth script files [no]
209   --disable-bzlib          disable bzlib [autodetect]
210   --disable-coreimage      disable Apple CoreImage framework [autodetect]
211   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
212   --enable-frei0r          enable frei0r video filtering [no]
213   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
214                            if openssl, librtmp or gmp is not used [no]
215   --enable-gmp             enable gmp, needed for rtmp(t)e support
216                            if openssl or librtmp is not used [no]
217   --enable-gnutls          enable gnutls, needed for https support
218                            if openssl is not used [no]
219   --disable-iconv          disable iconv [autodetect]
220   --disable-jack           disable libjack support [autodetect]
221   --enable-jni             enable JNI support [no]
222   --enable-ladspa          enable LADSPA audio filtering [no]
223   --enable-libass          enable libass subtitles rendering,
224                            needed for subtitles and ass filter [no]
225   --enable-libbluray       enable BluRay reading using libbluray [no]
226   --enable-libbs2b         enable bs2b DSP library [no]
227   --enable-libcaca         enable textual display using libcaca [no]
228   --enable-libcelt         enable CELT decoding via libcelt [no]
229   --enable-libcdio         enable audio CD grabbing with libcdio [no]
230   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
231                            and libraw1394 [no]
232   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
233   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
234   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
235   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
236   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
237   --enable-libgme          enable Game Music Emu via libgme [no]
238   --enable-libgsm          enable GSM de/encoding via libgsm [no]
239   --enable-libiec61883     enable iec61883 via libiec61883 [no]
240   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
241   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
242   --enable-libmodplug      enable ModPlug via libmodplug [no]
243   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
244   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
245   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
246   --enable-libopencv       enable video filtering via libopencv [no]
247   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
248   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
249   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
250   --enable-libopus         enable Opus de/encoding via libopus [no]
251   --enable-libpulse        enable Pulseaudio input via libpulse [no]
252   --enable-librsvg         enable SVG rasterization via librsvg [no]
253   --enable-librubberband   enable rubberband needed for rubberband filter [no]
254   --enable-librtmp         enable RTMP[E] support via librtmp [no]
255   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
256   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
257   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
258   --enable-libsoxr         enable Include libsoxr resampling [no]
259   --enable-libspeex        enable Speex de/encoding via libspeex [no]
260   --enable-libssh          enable SFTP protocol via libssh [no]
261   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
262   --enable-libtheora       enable Theora encoding via libtheora [no]
263   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
264   --enable-libv4l2         enable libv4l2/v4l-utils [no]
265   --enable-libvidstab      enable video stabilization using vid.stab [no]
266   --enable-libvmaf         enable vmaf filter via libvmaf [no]
267   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
268   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
269                            native implementation exists [no]
270   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
271   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
272   --enable-libwebp         enable WebP encoding via libwebp [no]
273   --enable-libx264         enable H.264 encoding via x264 [no]
274   --enable-libx265         enable HEVC encoding via x265 [no]
275   --enable-libxavs         enable AVS encoding via xavs [no]
276   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
277   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
278   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
279   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
280   --enable-libxvid         enable Xvid encoding via xvidcore,
281                            native MPEG-4/Xvid encoder exists [no]
282   --enable-libxml2         enable XML parsing using the C library libxml2 [no]
283   --enable-libzimg         enable z.lib, needed for zscale filter [no]
284   --enable-libzmq          enable message passing via libzmq [no]
285   --enable-libzvbi         enable teletext support via libzvbi [no]
286   --disable-lzma           disable lzma [autodetect]
287   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
288   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
289   --enable-mediacodec      enable Android MediaCodec support [no]
290   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
291   --enable-openal          enable OpenAL 1.1 capture support [no]
292   --enable-opencl          enable OpenCL code
293   --enable-opengl          enable OpenGL rendering [no]
294   --enable-openssl         enable openssl, needed for https support
295                            if gnutls is not used [no]
296   --disable-sndio          disable sndio support [autodetect]
297   --disable-schannel       disable SChannel SSP, needed for TLS support on
298                            Windows if openssl and gnutls are not used [autodetect]
299   --disable-sdl2           disable sdl2 [autodetect]
300   --disable-securetransport disable Secure Transport, needed for TLS support
301                            on OSX if openssl and gnutls are not used [autodetect]
302   --disable-xlib           disable xlib [autodetect]
303   --disable-zlib           disable zlib [autodetect]
304
305   The following libraries provide various hardware acceleration features:
306   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
307   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
308   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
309   --disable-cuvid          disable Nvidia CUVID support [autodetect]
310   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
311   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
312   --enable-libdrm          enable DRM code (Linux) [no]
313   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
314   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
315   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
316   --disable-nvenc          disable Nvidia video encoding code [autodetect]
317   --enable-omx             enable OpenMAX IL code [no]
318   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
319   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
320   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
321   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
322   --disable-videotoolbox   disable VideoToolbox code [autodetect]
323
324 Toolchain options:
325   --arch=ARCH              select architecture [$arch]
326   --cpu=CPU                select the minimum required CPU (affects
327                            instruction selection, may crash on older CPUs)
328   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
329   --progs-suffix=SUFFIX    program name suffix []
330   --enable-cross-compile   assume a cross-compiler is used
331   --sysroot=PATH           root of cross-build tree
332   --sysinclude=PATH        location of cross-build system headers
333   --target-os=OS           compiler targets OS [$target_os]
334   --target-exec=CMD        command to run executables on target
335   --target-path=DIR        path to view of build directory on target
336   --target-samples=DIR     path to samples directory on target
337   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
338   --toolchain=NAME         set tool defaults according to NAME
339   --nm=NM                  use nm tool NM [$nm_default]
340   --ar=AR                  use archive tool AR [$ar_default]
341   --as=AS                  use assembler AS [$as_default]
342   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
343   --strip=STRIP            use strip tool STRIP [$strip_default]
344   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
345   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
346   --cc=CC                  use C compiler CC [$cc_default]
347   --cxx=CXX                use C compiler CXX [$cxx_default]
348   --objcc=OCC              use ObjC compiler OCC [$cc_default]
349   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
350   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
351   --ld=LD                  use linker LD [$ld_default]
352   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
353   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
354   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
355   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
356   --host-cc=HOSTCC         use host C compiler HOSTCC
357   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
358   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
359   --host-ld=HOSTLD         use host linker HOSTLD
360   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
361   --host-libs=HLIBS        use libs HLIBS when linking for host
362   --host-os=OS             compiler host OS [$target_os]
363   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
364   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
365   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
366   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
367   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
368   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
369   --extra-libs=ELIBS       add ELIBS [$ELIBS]
370   --extra-version=STRING   version string suffix []
371   --optflags=OPTFLAGS      override optimization-related compiler flags
372   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
373   --build-suffix=SUFFIX    library name suffix []
374   --enable-pic             build position-independent code
375   --enable-thumb           compile for Thumb instruction set
376   --enable-lto             use link-time optimization
377   --env="ENV=override"     override the environment variables
378
379 Advanced options (experts only):
380   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
381   --custom-allocator=NAME  use a supported custom allocator
382   --disable-symver         disable symbol versioning
383   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
384   --disable-safe-bitstream-reader
385                            disable buffer boundary checking in bitreaders
386                            (faster, but may crash)
387   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
388
389 Optimization options (experts only):
390   --disable-asm            disable all assembly optimizations
391   --disable-altivec        disable AltiVec optimizations
392   --disable-vsx            disable VSX optimizations
393   --disable-power8         disable POWER8 optimizations
394   --disable-amd3dnow       disable 3DNow! optimizations
395   --disable-amd3dnowext    disable 3DNow! extended optimizations
396   --disable-mmx            disable MMX optimizations
397   --disable-mmxext         disable MMXEXT optimizations
398   --disable-sse            disable SSE optimizations
399   --disable-sse2           disable SSE2 optimizations
400   --disable-sse3           disable SSE3 optimizations
401   --disable-ssse3          disable SSSE3 optimizations
402   --disable-sse4           disable SSE4 optimizations
403   --disable-sse42          disable SSE4.2 optimizations
404   --disable-avx            disable AVX optimizations
405   --disable-xop            disable XOP optimizations
406   --disable-fma3           disable FMA3 optimizations
407   --disable-fma4           disable FMA4 optimizations
408   --disable-avx2           disable AVX2 optimizations
409   --disable-aesni          disable AESNI optimizations
410   --disable-armv5te        disable armv5te optimizations
411   --disable-armv6          disable armv6 optimizations
412   --disable-armv6t2        disable armv6t2 optimizations
413   --disable-vfp            disable VFP optimizations
414   --disable-neon           disable NEON optimizations
415   --disable-inline-asm     disable use of inline assembly
416   --disable-x86asm         disable use of standalone x86 assembly
417   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
418   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
419   --disable-msa            disable MSA optimizations
420   --disable-mipsfpu        disable floating point MIPS optimizations
421   --disable-mmi            disable Loongson SIMD optimizations
422   --disable-fast-unaligned consider unaligned accesses slow
423
424 Developer options (useful when working on FFmpeg itself):
425   --disable-debug          disable debugging symbols
426   --enable-debug=LEVEL     set the debug level [$debuglevel]
427   --disable-optimizations  disable compiler optimizations
428   --enable-extra-warnings  enable more compiler warnings
429   --disable-stripping      disable stripping of executables and shared libraries
430   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
431                            2 causes a slowdown at runtime.
432   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
433   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
434                            leaks and errors, using the specified valgrind binary.
435                            Cannot be combined with --target-exec
436   --enable-ftrapv          Trap arithmetic overflows
437   --samples=PATH           location of test samples for FATE, if not set use
438                            \$FATE_SAMPLES at make invocation time.
439   --enable-neon-clobber-test check NEON registers for clobbering (should be
440                            used only for debugging purposes)
441   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
442                            should be used only for debugging purposes)
443   --enable-random          randomly enable/disable components
444   --disable-random
445   --enable-random=LIST     randomly enable/disable specific components or
446   --disable-random=LIST    component groups. LIST is a comma-separated list
447                            of NAME[:PROB] entries where NAME is a component
448                            (group) and PROB the probability associated with
449                            NAME (default 0.5).
450   --random-seed=VALUE      seed value for --enable/disable-random
451   --disable-valgrind-backtrace do not print a backtrace under Valgrind
452                            (only applies to --disable-optimizations builds)
453   --enable-osfuzz          Enable building fuzzer tool
454   --libfuzzer=PATH         path to libfuzzer
455   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
456                            in the name) of tests whose result is ignored
457   --enable-linux-perf      enable Linux Performance Monitor API
458
459 NOTE: Object files are built at the place where configure is launched.
460 EOF
461   exit 0
462 }
463
464 quotes='""'
465 if test -t 1 && which tput >/dev/null 2>&1; then
466     ncolors=$(tput colors)
467     if test -n "$ncolors" && test $ncolors -ge 8; then
468         bold_color=$(tput bold)
469         warn_color=$(tput setaf 3)
470         error_color=$(tput setaf 1)
471         reset_color=$(tput sgr0)
472     fi
473     # 72 used instead of 80 since that's the default of pr
474     ncols=$(tput cols)
475 fi
476 : ${ncols:=72}
477
478 log(){
479     echo "$@" >> $logfile
480 }
481
482 log_file(){
483     log BEGIN $1
484     pr -n -t $1 >> $logfile
485     log END $1
486 }
487
488 warn(){
489     log "WARNING: $*"
490     WARNINGS="${WARNINGS}WARNING: $*\n"
491 }
492
493 die(){
494     log "$@"
495     echo "$error_color$bold_color$@$reset_color"
496     cat <<EOF
497
498 If you think configure made a mistake, make sure you are using the latest
499 version from Git.  If the latest version fails, report the problem to the
500 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
501 EOF
502     if disabled logging; then
503         cat <<EOF
504 Rerun configure with logging enabled (do not use --disable-logging), and
505 include the log this produces with your report.
506 EOF
507     else
508         cat <<EOF
509 Include the log file "$logfile" produced by configure as this will help
510 solve the problem.
511 EOF
512     fi
513     exit 1
514 }
515
516 # Avoid locale weirdness, besides we really just want to translate ASCII.
517 toupper(){
518     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
519 }
520
521 tolower(){
522     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
523 }
524
525 c_escape(){
526     echo "$*" | sed 's/["\\]/\\\0/g'
527 }
528
529 sh_quote(){
530     v=$(echo "$1" | sed "s/'/'\\\\''/g")
531     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
532     echo "$v"
533 }
534
535 cleanws(){
536     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
537 }
538
539 filter(){
540     pat=$1
541     shift
542     for v; do
543         eval "case $v in $pat) printf '%s ' $v ;; esac"
544     done
545 }
546
547 filter_out(){
548     pat=$1
549     shift
550     for v; do
551         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
552     done
553 }
554
555 map(){
556     m=$1
557     shift
558     for v; do eval $m; done
559 }
560
561 add_suffix(){
562     suffix=$1
563     shift
564     for v; do echo ${v}${suffix}; done
565 }
566
567 set_all(){
568     value=$1
569     shift
570     for var in $*; do
571         eval $var=$value
572     done
573 }
574
575 set_weak(){
576     value=$1
577     shift
578     for var; do
579         eval : \${$var:=$value}
580     done
581 }
582
583 sanitize_var_name(){
584     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
585 }
586
587 set_safe(){
588     var=$1
589     shift
590     eval $(sanitize_var_name "$var")='$*'
591 }
592
593 get_safe(){
594     eval echo \$$(sanitize_var_name "$1")
595 }
596
597 pushvar(){
598     for pvar in $*; do
599         eval level=\${${pvar}_level:=0}
600         eval ${pvar}_${level}="\$$pvar"
601         eval ${pvar}_level=$(($level+1))
602     done
603 }
604
605 popvar(){
606     for pvar in $*; do
607         eval level=\${${pvar}_level:-0}
608         test $level = 0 && continue
609         eval level=$(($level-1))
610         eval $pvar="\${${pvar}_${level}}"
611         eval ${pvar}_level=$level
612         eval unset ${pvar}_${level}
613     done
614 }
615
616 request(){
617     for var in $*; do
618         eval ${var}_requested=yes
619         eval $var=
620     done
621 }
622
623 enable(){
624     set_all yes $*
625 }
626
627 disable(){
628     set_all no $*
629 }
630
631 enable_weak(){
632     set_weak yes $*
633 }
634
635 disable_weak(){
636     set_weak no $*
637 }
638
639 enable_safe(){
640     for var; do
641         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
642     done
643 }
644
645 disable_safe(){
646     for var; do
647         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
648     done
649 }
650
651 do_enable_deep(){
652     for var; do
653         enabled $var && continue
654         eval sel="\$${var}_select"
655         eval sgs="\$${var}_suggest"
656         pushvar var sgs
657         enable_deep $sel
658         popvar sgs
659         enable_deep_weak $sgs
660         popvar var
661     done
662 }
663
664 enable_deep(){
665     do_enable_deep $*
666     enable $*
667 }
668
669 enable_deep_weak(){
670     for var; do
671         disabled $var && continue
672         pushvar var
673         do_enable_deep $var
674         popvar var
675         enable_weak $var
676     done
677 }
678
679 requested(){
680     test "${1#!}" = "$1" && op='=' || op=!=
681     eval test "x\$${1#!}_requested" $op "xyes"
682 }
683
684 enabled(){
685     test "${1#!}" = "$1" && op='=' || op=!=
686     eval test "x\$${1#!}" $op "xyes"
687 }
688
689 disabled(){
690     test "${1#!}" = "$1" && op='=' || op=!=
691     eval test "x\$${1#!}" $op "xno"
692 }
693
694 enabled_all(){
695     for opt; do
696         enabled $opt || return 1
697     done
698 }
699
700 disabled_all(){
701     for opt; do
702         disabled $opt || return 1
703     done
704 }
705
706 enabled_any(){
707     for opt; do
708         enabled $opt && return 0
709     done
710 }
711
712 disabled_any(){
713     for opt; do
714         disabled $opt && return 0
715     done
716     return 1
717 }
718
719 set_default(){
720     for opt; do
721         eval : \${$opt:=\$${opt}_default}
722     done
723 }
724
725 is_in(){
726     value=$1
727     shift
728     for var in $*; do
729         [ $var = $value ] && return 0
730     done
731     return 1
732 }
733
734 do_check_deps(){
735     for cfg; do
736         cfg="${cfg#!}"
737         enabled ${cfg}_checking && die "Circular dependency for $cfg."
738         disabled ${cfg}_checking && continue
739         enable ${cfg}_checking
740         append allopts $cfg
741
742         eval dep_all="\$${cfg}_deps"
743         eval dep_any="\$${cfg}_deps_any"
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_sel dep_sgs dep_ifa dep_ifn
750         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
751         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
752
753         [ -n "$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_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
758
759         if enabled $cfg; then
760             enable_deep $dep_sel
761             enable_deep_weak $dep_sgs
762         fi
763
764         disable ${cfg}_checking
765     done
766 }
767
768 check_deps(){
769     unset allopts
770
771     do_check_deps "$@"
772
773     for cfg in $allopts; do
774         enabled $cfg || continue
775         eval dep_extralibs="\$${cfg}_extralibs"
776         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
777     done
778 }
779
780 print_config(){
781     pfx=$1
782     files=$2
783     shift 2
784     map 'eval echo "$v \${$v:-no}"' "$@" |
785     awk "BEGIN { split(\"$files\", files) }
786         {
787             c = \"$pfx\" toupper(\$1);
788             v = \$2;
789             sub(/yes/, 1, v);
790             sub(/no/,  0, v);
791             for (f in files) {
792                 file = files[f];
793                 if (file ~ /\\.h\$/) {
794                     printf(\"#define %s %d\\n\", c, v) >>file;
795                 } else if (file ~ /\\.asm\$/) {
796                     printf(\"%%define %s %d\\n\", c, v) >>file;
797                 } else if (file ~ /\\.mak\$/) {
798                     n = -v ? \"\" : \"!\";
799                     printf(\"%s%s=yes\\n\", n, c) >>file;
800                 } else if (file ~ /\\.texi\$/) {
801                     pre = -v ? \"\" : \"@c \";
802                     yesno = \$2;
803                     c2 = tolower(c);
804                     gsub(/_/, \"-\", c2);
805                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
806                 }
807             }
808         }"
809 }
810
811 print_enabled(){
812     suf=$1
813     shift
814     for v; do
815         enabled $v && printf "%s\n" ${v%$suf}
816     done
817 }
818
819 append(){
820     var=$1
821     shift
822     eval "$var=\"\$$var $*\""
823 }
824
825 prepend(){
826     var=$1
827     shift
828     eval "$var=\"$* \$$var\""
829 }
830
831 unique(){
832     var=$1
833     uniq_list=""
834     for tok in $(eval echo \$$var); do
835         uniq_list="$(filter_out $tok $uniq_list) $tok"
836     done
837     eval "$var=\"${uniq_list}\""
838 }
839
840 add_cppflags(){
841     append CPPFLAGS "$@"
842 }
843
844 add_cflags(){
845     append CFLAGS $($cflags_filter "$@")
846 }
847
848 add_cflags_headers(){
849     append CFLAGS_HEADERS $($cflags_filter "$@")
850 }
851
852 add_cxxflags(){
853     append CXXFLAGS $($cflags_filter "$@")
854 }
855
856 add_asflags(){
857     append ASFLAGS $($asflags_filter "$@")
858 }
859
860 add_objcflags(){
861     append OBJCFLAGS $($objcflags_filter "$@")
862 }
863
864 add_ldflags(){
865     append LDFLAGS $($ldflags_filter "$@")
866 }
867
868 add_ldexeflags(){
869     append LDEXEFLAGS $($ldflags_filter "$@")
870 }
871
872 add_ldlibflags(){
873     append LDLIBFLAGS $($ldflags_filter "$@")
874 }
875
876 add_stripflags(){
877     append ASMSTRIPFLAGS "$@"
878 }
879
880 add_extralibs(){
881     prepend extralibs $($ldflags_filter "$@")
882 }
883
884 add_host_cppflags(){
885     append host_cppflags "$@"
886 }
887
888 add_host_cflags(){
889     append host_cflags $($host_cflags_filter "$@")
890 }
891
892 add_host_ldflags(){
893     append host_ldflags $($host_ldflags_filter "$@")
894 }
895
896 add_compat(){
897     append compat_objs $1
898     shift
899     map 'add_cppflags -D$v' "$@"
900 }
901
902 check_cmd(){
903     log "$@"
904     "$@" >> $logfile 2>&1
905 }
906
907 check_stat(){
908     log check_stat "$@"
909     stat "$1" >> $logfile 2>&1
910 }
911
912 cc_o(){
913     eval printf '%s\\n' $CC_O
914 }
915
916 cc_e(){
917     eval printf '%s\\n' $CC_E
918 }
919
920 check_cc(){
921     log check_cc "$@"
922     cat > $TMPC
923     log_file $TMPC
924     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
925 }
926
927 check_cxx(){
928     log check_cxx "$@"
929     cat > $TMPCPP
930     log_file $TMPCPP
931     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
932 }
933
934 check_objcc(){
935     log check_objcc "$@"
936     cat > $TMPM
937     log_file $TMPM
938     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
939 }
940
941 check_cpp(){
942     log check_cpp "$@"
943     cat > $TMPC
944     log_file $TMPC
945     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
946 }
947
948 as_o(){
949     eval printf '%s\\n' $AS_O
950 }
951
952 check_as(){
953     log check_as "$@"
954     cat > $TMPS
955     log_file $TMPS
956     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
957 }
958
959 check_inline_asm(){
960     log check_inline_asm "$@"
961     name="$1"
962     code="$2"
963     shift 2
964     disable $name
965     check_cc "$@" <<EOF && enable $name
966 void foo(void){ __asm__ volatile($code); }
967 EOF
968 }
969
970 check_inline_asm_flags(){
971     log check_inline_asm_flags "$@"
972     name="$1"
973     code="$2"
974     flags=''
975     shift 2
976     while [ "$1" != "" ]; do
977       append flags $1
978       shift
979     done;
980     disable $name
981     cat > $TMPC <<EOF
982 void foo(void){ __asm__ volatile($code); }
983 EOF
984     log_file $TMPC
985     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
986     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
987 }
988
989 check_insn(){
990     log check_insn "$@"
991     check_inline_asm ${1}_inline "\"$2\""
992     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
993 }
994
995 check_x86asm(){
996     log check_x86asm "$@"
997     echo "$1" > $TMPS
998     log_file $TMPS
999     shift 1
1000     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
1001 }
1002
1003 ld_o(){
1004     eval printf '%s\\n' $LD_O
1005 }
1006
1007 check_ld(){
1008     log check_ld "$@"
1009     type=$1
1010     shift 1
1011     flags=$(filter_out '-l*|*.so' $@)
1012     libs=$(filter '-l*|*.so' $@)
1013     check_$type $($cflags_filter $flags) || return
1014     flags=$($ldflags_filter $flags)
1015     libs=$($ldflags_filter $libs)
1016     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1017 }
1018
1019 print_include(){
1020     hdr=$1
1021     test "${hdr%.h}" = "${hdr}" &&
1022         echo "#include $hdr"    ||
1023         echo "#include <$hdr>"
1024 }
1025
1026 check_code(){
1027     log check_code "$@"
1028     check=$1
1029     headers=$2
1030     code=$3
1031     shift 3
1032     {
1033         for hdr in $headers; do
1034             print_include $hdr
1035         done
1036         echo "int main(void) { $code; return 0; }"
1037     } | check_$check "$@"
1038 }
1039
1040 check_cppflags(){
1041     log check_cppflags "$@"
1042     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1043 int x;
1044 EOF
1045 }
1046
1047 test_cflags(){
1048     log test_cflags "$@"
1049     set -- $($cflags_filter "$@")
1050     check_cc "$@" <<EOF
1051 int x;
1052 EOF
1053 }
1054
1055 check_cflags(){
1056     log check_cflags "$@"
1057     test_cflags "$@" && add_cflags "$@"
1058 }
1059
1060 check_cxxflags(){
1061     log check_cxxflags "$@"
1062     set -- $($cflags_filter "$@")
1063     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1064 int x;
1065 EOF
1066 }
1067
1068 test_objcflags(){
1069     log test_objcflags "$@"
1070     set -- $($objcflags_filter "$@")
1071     check_objcc "$@" <<EOF
1072 int x;
1073 EOF
1074 }
1075
1076 check_objcflags(){
1077     log check_objcflags "$@"
1078     test_objcflags "$@" && add_objcflags "$@"
1079 }
1080
1081 test_ldflags(){
1082     log test_ldflags "$@"
1083     check_ld "cc" "$@" <<EOF
1084 int main(void){ return 0; }
1085 EOF
1086 }
1087
1088 check_ldflags(){
1089     log check_ldflags "$@"
1090     test_ldflags "$@" && add_ldflags "$@"
1091 }
1092
1093 test_stripflags(){
1094     log test_stripflags "$@"
1095     # call check_cc to get a fresh TMPO
1096     check_cc <<EOF
1097 int main(void) { return 0; }
1098 EOF
1099     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1100 }
1101
1102 check_stripflags(){
1103     log check_stripflags "$@"
1104     test_stripflags "$@" && add_stripflags "$@"
1105 }
1106
1107 check_header(){
1108     log check_header "$@"
1109     header=$1
1110     shift
1111     disable_safe $header
1112     check_cpp "$@" <<EOF && enable_safe $header
1113 #include <$header>
1114 int x;
1115 EOF
1116 }
1117
1118 check_header_objcc(){
1119     log check_header_objcc "$@"
1120     rm -f -- "$TMPO"
1121     header=$1
1122     shift
1123     disable_safe $header
1124     {
1125        echo "#include <$header>"
1126        echo "int main(void) { return 0; }"
1127     } | check_objcc && check_stat "$TMPO" && enable_safe $header
1128 }
1129
1130 check_apple_framework(){
1131     log check_apple_framework "$@"
1132     framework="$1"
1133     name="$(tolower $framework)"
1134     header="${framework}/${framework}.h"
1135     disable $name
1136     check_header_objcc $header && enable $name && add_extralibs "-framework $framework"
1137 }
1138
1139 check_func(){
1140     log check_func "$@"
1141     func=$1
1142     shift
1143     disable $func
1144     check_ld "cc" "$@" <<EOF && enable $func
1145 extern int $func();
1146 int main(void){ $func(); }
1147 EOF
1148 }
1149
1150 check_complexfunc(){
1151     log check_complexfunc "$@"
1152     func=$1
1153     narg=$2
1154     shift 2
1155     test $narg = 2 && args="f, g" || args="f * I"
1156     disable $func
1157     check_ld "cc" "$@" <<EOF && enable $func
1158 #include <complex.h>
1159 #include <math.h>
1160 float foo(complex float f, complex float g) { return $func($args); }
1161 int main(void){ return (int) foo; }
1162 EOF
1163 }
1164
1165 check_mathfunc(){
1166     log check_mathfunc "$@"
1167     func=$1
1168     narg=$2
1169     shift 2
1170     test $narg = 2 && args="f, g" || args="f"
1171     disable $func
1172     check_ld "cc" "$@" <<EOF && enable $func
1173 #include <math.h>
1174 float foo(float f, float g) { return $func($args); }
1175 int main(void){ return (int) foo; }
1176 EOF
1177 }
1178
1179 check_func_headers(){
1180     log check_func_headers "$@"
1181     headers=$1
1182     funcs=$2
1183     shift 2
1184     {
1185         for hdr in $headers; do
1186             print_include $hdr
1187         done
1188         echo "#include <stdint.h>"
1189         for func in $funcs; do
1190             echo "long check_$func(void) { return (long) $func; }"
1191         done
1192         echo "int main(void) { int ret = 0;"
1193         # LTO could optimize out the test functions without this
1194         for func in $funcs; do
1195             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1196         done
1197         echo "return ret; }"
1198     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1199 }
1200
1201 check_class_headers_cpp(){
1202     log check_class_headers_cpp "$@"
1203     headers=$1
1204     classes=$2
1205     shift 2
1206     {
1207         for hdr in $headers; do
1208             echo "#include <$hdr>"
1209         done
1210         echo "int main(void) { "
1211         i=1
1212         for class in $classes; do
1213             echo "$class obj$i;"
1214             i=$(expr $i + 1)
1215         done
1216         echo "return 0; }"
1217     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1218 }
1219
1220 check_cpp_condition(){
1221     log check_cpp_condition "$@"
1222     header=$1
1223     condition=$2
1224     shift 2
1225     check_cpp "$@" <<EOF
1226 #include <$header>
1227 #if !($condition)
1228 #error "unsatisfied condition: $condition"
1229 #endif
1230 EOF
1231 }
1232
1233 test_cflags_cc(){
1234     log test_cflags_cc "$@"
1235     flags=$1
1236     header=$2
1237     condition=$3
1238     shift 3
1239     set -- $($cflags_filter "$flags")
1240     check_cc "$@" <<EOF
1241 #include <$header>
1242 #if !($condition)
1243 #error "unsatisfied condition: $condition"
1244 #endif
1245 EOF
1246 }
1247
1248 check_lib(){
1249     log check_lib "$@"
1250     name="$1"
1251     headers="$2"
1252     funcs="$3"
1253     shift 3
1254     disable $name
1255     check_func_headers "$headers" "$funcs" "$@" &&
1256         enable $name && add_extralibs "$@"
1257 }
1258
1259 check_lib_cpp(){
1260     log check_lib_cpp "$@"
1261     headers="$1"
1262     classes="$2"
1263     shift 2
1264     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1265 }
1266
1267 check_pkg_config(){
1268     log check_pkg_config "$@"
1269     pkg_version="$1"
1270     pkg="${1%% *}"
1271     headers="$2"
1272     funcs="$3"
1273     shift 3
1274     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1275     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1276     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1277     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1278         set_safe "${pkg}_cflags"    $pkg_cflags &&
1279         set_safe "${pkg}_extralibs" $pkg_libs
1280 }
1281
1282 check_exec(){
1283     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1284 }
1285
1286 check_exec_crash(){
1287     log check_exec_crash "$@"
1288     code=$(cat)
1289
1290     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1291     # are safe but may not be available everywhere.  Thus we use
1292     # raise(SIGTERM) instead.  The check is run in a subshell so we
1293     # can redirect the "Terminated" message from the shell.  SIGBUS
1294     # is not defined by standard C so it is used conditionally.
1295
1296     (check_exec "$@") >> $logfile 2>&1 <<EOF
1297 #include <signal.h>
1298 static void sighandler(int sig){
1299     raise(SIGTERM);
1300 }
1301 int foo(void){
1302     $code
1303 }
1304 int (*func_ptr)(void) = foo;
1305 int main(void){
1306     signal(SIGILL, sighandler);
1307     signal(SIGFPE, sighandler);
1308     signal(SIGSEGV, sighandler);
1309 #ifdef SIGBUS
1310     signal(SIGBUS, sighandler);
1311 #endif
1312     return func_ptr();
1313 }
1314 EOF
1315 }
1316
1317 check_type(){
1318     log check_type "$@"
1319     headers=$1
1320     type=$2
1321     shift 2
1322     disable_safe "$type"
1323     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1324 }
1325
1326 check_struct(){
1327     log check_struct "$@"
1328     headers=$1
1329     struct=$2
1330     member=$3
1331     shift 3
1332     disable_safe "${struct}_${member}"
1333     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1334         enable_safe "${struct}_${member}"
1335 }
1336
1337 check_builtin(){
1338     log check_builtin "$@"
1339     name=$1
1340     headers=$2
1341     builtin=$3
1342     shift 3
1343     disable "$name"
1344     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1345 }
1346
1347 check_compile_assert(){
1348     log check_compile_assert "$@"
1349     name=$1
1350     headers=$2
1351     condition=$3
1352     shift 3
1353     disable "$name"
1354     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1355 }
1356
1357 require(){
1358     log require "$@"
1359     name_version="$1"
1360     name="${1%% *}"
1361     headers="$2"
1362     func="$3"
1363     shift 3
1364     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1365 }
1366
1367 require_cpp(){
1368     name="$1"
1369     headers="$2"
1370     classes="$3"
1371     shift 3
1372     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1373 }
1374
1375 use_pkg_config(){
1376     log use_pkg_config "$@"
1377     pkg="$1"
1378     check_pkg_config "$@" || return 1
1379     add_cflags    $(get_safe "${pkg}_cflags")
1380     add_extralibs $(get_safe "${pkg}_extralibs")
1381 }
1382
1383 require_pkg_config(){
1384     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1385 }
1386
1387 hostcc_e(){
1388     eval printf '%s\\n' $HOSTCC_E
1389 }
1390
1391 hostcc_o(){
1392     eval printf '%s\\n' $HOSTCC_O
1393 }
1394
1395 check_host_cc(){
1396     log check_host_cc "$@"
1397     cat > $TMPC
1398     log_file $TMPC
1399     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1400 }
1401
1402 check_host_cpp(){
1403     log check_host_cpp "$@"
1404     cat > $TMPC
1405     log_file $TMPC
1406     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1407 }
1408
1409 check_host_cppflags(){
1410     log check_host_cppflags "$@"
1411     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1412 int x;
1413 EOF
1414 }
1415
1416 check_host_cflags(){
1417     log check_host_cflags "$@"
1418     set -- $($host_cflags_filter "$@")
1419     check_host_cc "$@" <<EOF && append host_cflags "$@"
1420 int x;
1421 EOF
1422 }
1423
1424 check_host_cpp_condition(){
1425     log check_host_cpp_condition "$@"
1426     header=$1
1427     condition=$2
1428     shift 2
1429     check_host_cpp "$@" <<EOF
1430 #include <$header>
1431 #if !($condition)
1432 #error "unsatisfied condition: $condition"
1433 #endif
1434 EOF
1435 }
1436
1437 cp_if_changed(){
1438     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1439     mkdir -p "$(dirname $2)"
1440     cp -f "$1" "$2"
1441 }
1442
1443 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1444 # system-dependent things.
1445
1446 AVCODEC_COMPONENTS="
1447     bsfs
1448     decoders
1449     encoders
1450     hwaccels
1451     parsers
1452 "
1453
1454 AVDEVICE_COMPONENTS="
1455     indevs
1456     outdevs
1457 "
1458
1459 AVFILTER_COMPONENTS="
1460     filters
1461 "
1462
1463 AVFORMAT_COMPONENTS="
1464     demuxers
1465     muxers
1466     protocols
1467 "
1468
1469 AVRESAMPLE_COMPONENTS=""
1470
1471 AVUTIL_COMPONENTS=""
1472
1473 COMPONENT_LIST="
1474     $AVCODEC_COMPONENTS
1475     $AVDEVICE_COMPONENTS
1476     $AVFILTER_COMPONENTS
1477     $AVFORMAT_COMPONENTS
1478     $AVRESAMPLE_COMPONENTS
1479     $AVUTIL_COMPONENTS
1480 "
1481
1482 EXAMPLE_LIST="
1483     avio_dir_cmd_example
1484     avio_reading_example
1485     decode_audio_example
1486     decode_video_example
1487     demuxing_decoding_example
1488     encode_audio_example
1489     encode_video_example
1490     extract_mvs_example
1491     filter_audio_example
1492     filtering_audio_example
1493     filtering_video_example
1494     http_multiclient_example
1495     hw_decode_example
1496     metadata_example
1497     muxing_example
1498     qsvdec_example
1499     remuxing_example
1500     resampling_audio_example
1501     scaling_video_example
1502     transcode_aac_example
1503     transcoding_example
1504 "
1505
1506 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1507     alsa
1508     appkit
1509     avfoundation
1510     bzlib
1511     coreimage
1512     iconv
1513     jack
1514     libxcb
1515     libxcb_shm
1516     libxcb_shape
1517     libxcb_xfixes
1518     lzma
1519     schannel
1520     sdl2
1521     securetransport
1522     sndio
1523     xlib
1524     zlib
1525 "
1526
1527 EXTERNAL_LIBRARY_GPL_LIST="
1528     avisynth
1529     frei0r
1530     libcdio
1531     librubberband
1532     libvidstab
1533     libx264
1534     libx265
1535     libxavs
1536     libxvid
1537 "
1538
1539 EXTERNAL_LIBRARY_NONFREE_LIST="
1540     decklink
1541     libndi_newtek
1542     libfdk_aac
1543     openssl
1544 "
1545
1546 EXTERNAL_LIBRARY_VERSION3_LIST="
1547     gmp
1548     libopencore_amrnb
1549     libopencore_amrwb
1550     libvo_amrwbenc
1551 "
1552
1553 EXTERNAL_LIBRARY_GPLV3_LIST="
1554     libsmbclient
1555 "
1556
1557 EXTERNAL_LIBRARY_LIST="
1558     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1559     $EXTERNAL_LIBRARY_GPL_LIST
1560     $EXTERNAL_LIBRARY_NONFREE_LIST
1561     $EXTERNAL_LIBRARY_VERSION3_LIST
1562     $EXTERNAL_LIBRARY_GPLV3_LIST
1563     chromaprint
1564     gcrypt
1565     gnutls
1566     jni
1567     ladspa
1568     libass
1569     libbluray
1570     libbs2b
1571     libcaca
1572     libcelt
1573     libdc1394
1574     libdrm
1575     libflite
1576     libfontconfig
1577     libfreetype
1578     libfribidi
1579     libgme
1580     libgsm
1581     libiec61883
1582     libilbc
1583     libkvazaar
1584     libmodplug
1585     libmp3lame
1586     libmysofa
1587     libopencv
1588     libopenh264
1589     libopenjpeg
1590     libopenmpt
1591     libopus
1592     libpulse
1593     librsvg
1594     librtmp
1595     libshine
1596     libsmbclient
1597     libsnappy
1598     libsoxr
1599     libspeex
1600     libssh
1601     libtesseract
1602     libtheora
1603     libtwolame
1604     libv4l2
1605     libvmaf
1606     libvorbis
1607     libvpx
1608     libwavpack
1609     libwebp
1610     libxml2
1611     libzimg
1612     libzmq
1613     libzvbi
1614     mediacodec
1615     openal
1616     opencl
1617     opengl
1618 "
1619
1620 HWACCEL_AUTODETECT_LIBRARY_LIST="
1621     audiotoolbox
1622     crystalhd
1623     cuda
1624     cuvid
1625     d3d11va
1626     dxva2
1627     nvenc
1628     vaapi
1629     vda
1630     vdpau
1631     videotoolbox
1632     v4l2_m2m
1633     xvmc
1634 "
1635
1636 HWACCEL_LIBRARY_NONFREE_LIST="
1637     cuda_sdk
1638     libnpp
1639 "
1640
1641 HWACCEL_LIBRARY_LIST="
1642     $HWACCEL_AUTODETECT_LIBRARY_LIST
1643     $HWACCEL_LIBRARY_NONFREE_LIST
1644     libmfx
1645     mmal
1646     omx
1647 "
1648
1649 DOCUMENT_LIST="
1650     doc
1651     htmlpages
1652     manpages
1653     podpages
1654     txtpages
1655 "
1656
1657 FEATURE_LIST="
1658     ftrapv
1659     gray
1660     hardcoded_tables
1661     omx_rpi
1662     runtime_cpudetect
1663     safe_bitstream_reader
1664     shared
1665     small
1666     static
1667     swscale_alpha
1668 "
1669
1670 LIBRARY_LIST="
1671     avcodec
1672     avdevice
1673     avfilter
1674     avformat
1675     avresample
1676     avutil
1677     postproc
1678     swresample
1679     swscale
1680 "
1681
1682 LICENSE_LIST="
1683     gpl
1684     nonfree
1685     version3
1686 "
1687
1688 PROGRAM_LIST="
1689     ffplay
1690     ffprobe
1691     ffserver
1692     ffmpeg
1693 "
1694
1695 SUBSYSTEM_LIST="
1696     dct
1697     dwt
1698     error_resilience
1699     faan
1700     fast_unaligned
1701     fft
1702     lsp
1703     lzo
1704     mdct
1705     pixelutils
1706     network
1707     rdft
1708 "
1709
1710 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1711 CONFIG_LIST="
1712     $DOCUMENT_LIST
1713     $EXAMPLE_LIST
1714     $EXTERNAL_LIBRARY_LIST
1715     $HWACCEL_LIBRARY_LIST
1716     $FEATURE_LIST
1717     $LICENSE_LIST
1718     $LIBRARY_LIST
1719     $PROGRAM_LIST
1720     $SUBSYSTEM_LIST
1721     autodetect
1722     fontconfig
1723     linux_perf
1724     memory_poisoning
1725     neon_clobber_test
1726     ossfuzz
1727     pic
1728     thumb
1729     valgrind_backtrace
1730     xmm_clobber_test
1731     $COMPONENT_LIST
1732 "
1733
1734 THREADS_LIST="
1735     pthreads
1736     os2threads
1737     w32threads
1738 "
1739
1740 ATOMICS_LIST="
1741     atomics_gcc
1742     atomics_suncc
1743     atomics_win32
1744 "
1745
1746 AUTODETECT_LIBS="
1747     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1748     $HWACCEL_AUTODETECT_LIBRARY_LIST
1749     $THREADS_LIST
1750 "
1751
1752 ARCH_LIST="
1753     aarch64
1754     alpha
1755     arm
1756     avr32
1757     avr32_ap
1758     avr32_uc
1759     bfin
1760     ia64
1761     m68k
1762     mips
1763     mips64
1764     parisc
1765     ppc
1766     ppc64
1767     s390
1768     sh4
1769     sparc
1770     sparc64
1771     tilegx
1772     tilepro
1773     tomi
1774     x86
1775     x86_32
1776     x86_64
1777 "
1778
1779 ARCH_EXT_LIST_ARM="
1780     armv5te
1781     armv6
1782     armv6t2
1783     armv8
1784     neon
1785     vfp
1786     vfpv3
1787     setend
1788 "
1789
1790 ARCH_EXT_LIST_MIPS="
1791     mipsfpu
1792     mips32r2
1793     mips32r5
1794     mips64r2
1795     mips32r6
1796     mips64r6
1797     mipsdsp
1798     mipsdspr2
1799     msa
1800 "
1801
1802 ARCH_EXT_LIST_LOONGSON="
1803     loongson2
1804     loongson3
1805     mmi
1806 "
1807
1808 ARCH_EXT_LIST_X86_SIMD="
1809     aesni
1810     amd3dnow
1811     amd3dnowext
1812     avx
1813     avx2
1814     fma3
1815     fma4
1816     mmx
1817     mmxext
1818     sse
1819     sse2
1820     sse3
1821     sse4
1822     sse42
1823     ssse3
1824     xop
1825 "
1826
1827 ARCH_EXT_LIST_PPC="
1828     altivec
1829     dcbzl
1830     ldbrx
1831     power8
1832     ppc4xx
1833     vsx
1834 "
1835
1836 ARCH_EXT_LIST_X86="
1837     $ARCH_EXT_LIST_X86_SIMD
1838     cpunop
1839     i686
1840 "
1841
1842 ARCH_EXT_LIST="
1843     $ARCH_EXT_LIST_ARM
1844     $ARCH_EXT_LIST_PPC
1845     $ARCH_EXT_LIST_X86
1846     $ARCH_EXT_LIST_MIPS
1847     $ARCH_EXT_LIST_LOONGSON
1848 "
1849
1850 ARCH_FEATURES="
1851     aligned_stack
1852     fast_64bit
1853     fast_clz
1854     fast_cmov
1855     local_aligned_8
1856     local_aligned_16
1857     local_aligned_32
1858     simd_align_16
1859     simd_align_32
1860 "
1861
1862 BUILTIN_LIST="
1863     atomic_cas_ptr
1864     machine_rw_barrier
1865     MemoryBarrier
1866     mm_empty
1867     rdtsc
1868     sarestart
1869     sem_timedwait
1870     sync_val_compare_and_swap
1871 "
1872 HAVE_LIST_CMDLINE="
1873     inline_asm
1874     symver
1875     x86asm
1876 "
1877
1878 HAVE_LIST_PUB="
1879     bigendian
1880     fast_unaligned
1881 "
1882
1883 HEADERS_LIST="
1884     altivec_h
1885     arpa_inet_h
1886     asm_types_h
1887     cdio_paranoia_h
1888     cdio_paranoia_paranoia_h
1889     cuda_h
1890     d3d11_h
1891     dispatch_dispatch_h
1892     dev_bktr_ioctl_bt848_h
1893     dev_bktr_ioctl_meteor_h
1894     dev_ic_bt8xx_h
1895     dev_video_bktr_ioctl_bt848_h
1896     dev_video_meteor_ioctl_meteor_h
1897     direct_h
1898     dirent_h
1899     dlfcn_h
1900     dxgidebug_h
1901     dxva_h
1902     ES2_gl_h
1903     gsm_h
1904     io_h
1905     mach_mach_time_h
1906     machine_ioctl_bt848_h
1907     machine_ioctl_meteor_h
1908     malloc_h
1909     opencv2_core_core_c_h
1910     openjpeg_2_2_openjpeg_h
1911     openjpeg_2_1_openjpeg_h
1912     openjpeg_2_0_openjpeg_h
1913     openjpeg_1_5_openjpeg_h
1914     OpenGL_gl3_h
1915     poll_h
1916     soundcard_h
1917     stdatomic_h
1918     sys_mman_h
1919     sys_param_h
1920     sys_resource_h
1921     sys_select_h
1922     sys_soundcard_h
1923     sys_time_h
1924     sys_un_h
1925     sys_videoio_h
1926     termios_h
1927     udplite_h
1928     unistd_h
1929     valgrind_valgrind_h
1930     windows_h
1931     winsock2_h
1932 "
1933
1934 INTRINSICS_LIST="
1935     intrinsics_neon
1936 "
1937
1938 COMPLEX_FUNCS="
1939     cabs
1940     cexp
1941 "
1942
1943 MATH_FUNCS="
1944     atanf
1945     atan2f
1946     cbrt
1947     cbrtf
1948     copysign
1949     cosf
1950     erf
1951     exp2
1952     exp2f
1953     expf
1954     hypot
1955     isfinite
1956     isinf
1957     isnan
1958     ldexpf
1959     llrint
1960     llrintf
1961     log2
1962     log2f
1963     log10f
1964     lrint
1965     lrintf
1966     powf
1967     rint
1968     round
1969     roundf
1970     sinf
1971     trunc
1972     truncf
1973 "
1974
1975 SYSTEM_FUNCS="
1976     access
1977     aligned_malloc
1978     arc4random
1979     clock_gettime
1980     closesocket
1981     CommandLineToArgvW
1982     CoTaskMemFree
1983     CryptGenRandom
1984     dlopen
1985     fcntl
1986     flt_lim
1987     fork
1988     getaddrinfo
1989     gethrtime
1990     getopt
1991     GetProcessAffinityMask
1992     GetProcessMemoryInfo
1993     GetProcessTimes
1994     getrusage
1995     GetSystemTimeAsFileTime
1996     gettimeofday
1997     glob
1998     glXGetProcAddress
1999     gmtime_r
2000     inet_aton
2001     isatty
2002     jack_port_get_latency_range
2003     kbhit
2004     LoadLibrary
2005     localtime_r
2006     lstat
2007     lzo1x_999_compress
2008     mach_absolute_time
2009     MapViewOfFile
2010     memalign
2011     mkstemp
2012     mmap
2013     mprotect
2014     nanosleep
2015     PeekNamedPipe
2016     posix_memalign
2017     pthread_cancel
2018     sched_getaffinity
2019     SetConsoleTextAttribute
2020     SetConsoleCtrlHandler
2021     setmode
2022     setrlimit
2023     Sleep
2024     strerror_r
2025     sysconf
2026     sysctl
2027     usleep
2028     UTGetOSTypeFromString
2029     VirtualAlloc
2030     wglGetProcAddress
2031 "
2032
2033 TOOLCHAIN_FEATURES="
2034     as_dn_directive
2035     as_fpu_directive
2036     as_func
2037     as_object_arch
2038     asm_mod_q
2039     attribute_may_alias
2040     attribute_packed
2041     blocks_extension
2042     ebp_available
2043     ebx_available
2044     gnu_as
2045     gnu_windres
2046     ibm_asm
2047     inline_asm_direct_symbol_refs
2048     inline_asm_labels
2049     inline_asm_nonlocal_labels
2050     pragma_deprecated
2051     rsync_contimeout
2052     symver_asm_label
2053     symver_gnu_asm
2054     vfp_args
2055     xform_asm
2056     xmm_clobbers
2057 "
2058
2059 TYPES_LIST="
2060     CONDITION_VARIABLE_Ptr
2061     socklen_t
2062     struct_addrinfo
2063     struct_group_source_req
2064     struct_ip_mreq_source
2065     struct_ipv6_mreq
2066     struct_msghdr_msg_flags
2067     struct_pollfd
2068     struct_rusage_ru_maxrss
2069     struct_sctp_event_subscribe
2070     struct_sockaddr_in6
2071     struct_sockaddr_sa_len
2072     struct_sockaddr_storage
2073     struct_stat_st_mtim_tv_nsec
2074     struct_v4l2_frmivalenum_discrete
2075 "
2076
2077 HAVE_LIST="
2078     $ARCH_EXT_LIST
2079     $(add_suffix _external $ARCH_EXT_LIST)
2080     $(add_suffix _inline   $ARCH_EXT_LIST)
2081     $ARCH_FEATURES
2082     $ATOMICS_LIST
2083     $BUILTIN_LIST
2084     $COMPLEX_FUNCS
2085     $HAVE_LIST_CMDLINE
2086     $HAVE_LIST_PUB
2087     $HEADERS_LIST
2088     $INTRINSICS_LIST
2089     $MATH_FUNCS
2090     $SYSTEM_FUNCS
2091     $THREADS_LIST
2092     $TOOLCHAIN_FEATURES
2093     $TYPES_LIST
2094     atomics_native
2095     dos_paths
2096     libc_msvcrt
2097     makeinfo
2098     makeinfo_html
2099     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2100     perl
2101     pod2man
2102     section_data_rel_ro
2103     texi2html
2104     threads
2105     uwp
2106     vaapi_drm
2107     vaapi_x11
2108     vdpau_x11
2109     winrt
2110 "
2111
2112 # options emitted with CONFIG_ prefix but not available on the command line
2113 CONFIG_EXTRA="
2114     aandcttables
2115     ac3dsp
2116     audio_frame_queue
2117     audiodsp
2118     blockdsp
2119     bswapdsp
2120     cabac
2121     dirac_parse
2122     dvprofile
2123     exif
2124     faandct
2125     faanidct
2126     fdctdsp
2127     flacdsp
2128     fmtconvert
2129     frame_thread_encoder
2130     g722dsp
2131     golomb
2132     gplv3
2133     h263dsp
2134     h264chroma
2135     h264dsp
2136     h264parse
2137     h264pred
2138     h264qpel
2139     hevcparse
2140     hpeldsp
2141     huffman
2142     huffyuvdsp
2143     huffyuvencdsp
2144     idctdsp
2145     iirfilter
2146     mdct15
2147     intrax8
2148     iso_media
2149     ividsp
2150     jpegtables
2151     lgplv3
2152     libx262
2153     llauddsp
2154     llviddsp
2155     llvidencdsp
2156     lpc
2157     lzf
2158     me_cmp
2159     mpeg_er
2160     mpegaudio
2161     mpegaudiodsp
2162     mpegaudioheader
2163     mpegvideo
2164     mpegvideoenc
2165     mss34dsp
2166     pixblockdsp
2167     qpeldsp
2168     qsv
2169     qsvdec
2170     qsvenc
2171     rangecoder
2172     riffdec
2173     riffenc
2174     rtpdec
2175     rtpenc_chain
2176     rv34dsp
2177     sinewin
2178     snappy
2179     srtp
2180     startcode
2181     texturedsp
2182     texturedspenc
2183     tpeldsp
2184     vaapi_encode
2185     vc1dsp
2186     videodsp
2187     vp3dsp
2188     vp56dsp
2189     vp8dsp
2190     wma_freqs
2191     wmv2dsp
2192 "
2193
2194 CMDLINE_SELECT="
2195     $ARCH_EXT_LIST
2196     $CONFIG_LIST
2197     $HAVE_LIST_CMDLINE
2198     $THREADS_LIST
2199     asm
2200     cross_compile
2201     debug
2202     extra_warnings
2203     logging
2204     lto
2205     optimizations
2206     rpath
2207     stripping
2208 "
2209
2210 PATHS_LIST="
2211     bindir
2212     datadir
2213     docdir
2214     incdir
2215     libdir
2216     mandir
2217     pkgconfigdir
2218     prefix
2219     shlibdir
2220     install_name_dir
2221 "
2222
2223 CMDLINE_SET="
2224     $PATHS_LIST
2225     ar
2226     arch
2227     as
2228     assert_level
2229     build_suffix
2230     cc
2231     objcc
2232     cpu
2233     cross_prefix
2234     custom_allocator
2235     cxx
2236     dep_cc
2237     doxygen
2238     env
2239     extra_version
2240     gas
2241     host_cc
2242     host_cflags
2243     host_extralibs
2244     host_ld
2245     host_ldflags
2246     host_os
2247     ignore_tests
2248     install
2249     ld
2250     ln_s
2251     logfile
2252     malloc_prefix
2253     nm
2254     optflags
2255     nvccflags
2256     pkg_config
2257     pkg_config_flags
2258     progs_suffix
2259     random_seed
2260     ranlib
2261     samples
2262     strip
2263     sws_max_filter_size
2264     sysinclude
2265     sysroot
2266     target_exec
2267     target_os
2268     target_path
2269     target_samples
2270     tempprefix
2271     toolchain
2272     valgrind
2273     x86asmexe
2274 "
2275
2276 CMDLINE_APPEND="
2277     extra_cflags
2278     extra_cxxflags
2279     extra_objcflags
2280     host_cppflags
2281 "
2282
2283 # code dependency declarations
2284
2285 # architecture extensions
2286
2287 armv5te_deps="arm"
2288 armv6_deps="arm"
2289 armv6t2_deps="arm"
2290 armv8_deps="aarch64"
2291 neon_deps_any="aarch64 arm"
2292 intrinsics_neon_deps="neon"
2293 vfp_deps_any="aarch64 arm"
2294 vfpv3_deps="vfp"
2295 setend_deps="arm"
2296
2297 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2298
2299 loongson2_deps="mips"
2300 loongson3_deps="mips"
2301 mipsfpu_deps="mips"
2302 mipsdsp_deps="mips"
2303 mipsdspr2_deps="mips"
2304 mips32r2_deps="mips"
2305 mips32r5_deps="mips"
2306 mips32r6_deps="mips"
2307 mips64r2_deps="mips"
2308 mips64r6_deps="mips"
2309 msa_deps="mipsfpu"
2310 mmi_deps="mips"
2311
2312 altivec_deps="ppc"
2313 dcbzl_deps="ppc"
2314 ldbrx_deps="ppc"
2315 ppc4xx_deps="ppc"
2316 vsx_deps="altivec"
2317 power8_deps="vsx"
2318
2319 cpunop_deps="i686"
2320 x86_64_select="i686"
2321 x86_64_suggest="fast_cmov"
2322
2323 amd3dnow_deps="mmx"
2324 amd3dnowext_deps="amd3dnow"
2325 i686_deps="x86"
2326 mmx_deps="x86"
2327 mmxext_deps="mmx"
2328 sse_deps="mmxext"
2329 sse2_deps="sse"
2330 sse3_deps="sse2"
2331 ssse3_deps="sse3"
2332 sse4_deps="ssse3"
2333 sse42_deps="sse4"
2334 aesni_deps="sse42"
2335 avx_deps="sse42"
2336 xop_deps="avx"
2337 fma3_deps="avx"
2338 fma4_deps="avx"
2339 avx2_deps="avx"
2340
2341 mmx_external_deps="x86asm"
2342 mmx_inline_deps="inline_asm"
2343 mmx_suggest="mmx_external mmx_inline"
2344
2345 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2346     eval dep=\$${ext}_deps
2347     eval ${ext}_external_deps='"${dep}_external"'
2348     eval ${ext}_inline_deps='"${dep}_inline"'
2349     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2350 done
2351
2352 aligned_stack_if_any="aarch64 ppc x86"
2353 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2354 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2355 fast_unaligned_if_any="aarch64 ppc x86"
2356 simd_align_16_if_any="altivec neon sse"
2357 simd_align_32_if_any="avx"
2358
2359 # system capabilities
2360 symver_if_any="symver_asm_label symver_gnu_asm"
2361 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2362
2363 # threading support
2364 atomics_gcc_if="sync_val_compare_and_swap"
2365 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2366 atomics_win32_if="MemoryBarrier"
2367 atomics_native_if_any="$ATOMICS_LIST"
2368 w32threads_deps="atomics_native"
2369 threads_if_any="$THREADS_LIST"
2370
2371 # subsystems
2372 dct_select="rdft"
2373 dirac_parse_select="golomb"
2374 error_resilience_select="me_cmp"
2375 faandct_deps="faan fdctdsp"
2376 faanidct_deps="faan idctdsp"
2377 h264dsp_select="startcode"
2378 hevcparse_select="golomb"
2379 frame_thread_encoder_deps="encoders threads"
2380 intrax8_select="blockdsp idctdsp"
2381 mdct_select="fft"
2382 mdct15_select="fft"
2383 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2384 mpeg_er_select="error_resilience"
2385 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2386 mpegaudiodsp_select="dct"
2387 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2388 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2389 vc1dsp_select="h264chroma qpeldsp startcode"
2390 rdft_select="fft"
2391
2392 # decoders / encoders
2393 aac_decoder_select="mdct15 mdct sinewin"
2394 aac_fixed_decoder_select="mdct sinewin"
2395 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2396 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2397 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2398 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2399 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2400 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2401 adpcm_g722_decoder_select="g722dsp"
2402 adpcm_g722_encoder_select="g722dsp"
2403 aic_decoder_select="golomb idctdsp"
2404 alac_encoder_select="lpc"
2405 als_decoder_select="bswapdsp"
2406 amrnb_decoder_select="lsp"
2407 amrwb_decoder_select="lsp"
2408 amv_decoder_select="sp5x_decoder exif"
2409 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2410 ape_decoder_select="bswapdsp llauddsp"
2411 apng_decoder_select="zlib"
2412 apng_encoder_select="llvidencdsp zlib"
2413 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2414 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2415 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2416 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2417 atrac1_decoder_select="mdct sinewin"
2418 atrac3_decoder_select="mdct"
2419 atrac3p_decoder_select="mdct sinewin"
2420 avrn_decoder_select="exif jpegtables"
2421 bink_decoder_select="blockdsp hpeldsp"
2422 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2423 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2424 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2425 clearvideo_decoder_select="idctdsp"
2426 cllc_decoder_select="bswapdsp"
2427 comfortnoise_encoder_select="lpc"
2428 cook_decoder_select="audiodsp mdct sinewin"
2429 cscd_decoder_select="lzo"
2430 cscd_decoder_suggest="zlib"
2431 dca_decoder_select="mdct"
2432 dds_decoder_select="texturedsp"
2433 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2434 dnxhd_decoder_select="blockdsp idctdsp"
2435 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2436 dolby_e_decoder_select="mdct"
2437 dvvideo_decoder_select="dvprofile idctdsp"
2438 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2439 dxa_decoder_select="zlib"
2440 dxv_decoder_select="lzf texturedsp"
2441 eac3_decoder_select="ac3_decoder"
2442 eac3_encoder_select="ac3_encoder"
2443 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2444 eatgq_decoder_select="aandcttables"
2445 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2446 exr_decoder_select="zlib"
2447 ffv1_decoder_select="rangecoder"
2448 ffv1_encoder_select="rangecoder"
2449 ffvhuff_decoder_select="huffyuv_decoder"
2450 ffvhuff_encoder_select="huffyuv_encoder"
2451 fic_decoder_select="golomb"
2452 flac_decoder_select="flacdsp"
2453 flac_encoder_select="bswapdsp flacdsp lpc"
2454 flashsv2_decoder_select="zlib"
2455 flashsv2_encoder_select="zlib"
2456 flashsv_decoder_select="zlib"
2457 flashsv_encoder_select="zlib"
2458 flv_decoder_select="h263_decoder"
2459 flv_encoder_select="h263_encoder"
2460 fourxm_decoder_select="blockdsp bswapdsp"
2461 fraps_decoder_select="bswapdsp huffman"
2462 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2463 g729_decoder_select="audiodsp"
2464 h261_decoder_select="mpegvideo"
2465 h261_encoder_select="aandcttables mpegvideoenc"
2466 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2467 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2468 h263i_decoder_select="h263_decoder"
2469 h263p_decoder_select="h263_decoder"
2470 h263p_encoder_select="h263_encoder"
2471 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2472 h264_decoder_suggest="error_resilience"
2473 hap_decoder_select="snappy texturedsp"
2474 hap_encoder_deps="libsnappy"
2475 hap_encoder_select="texturedspenc"
2476 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2477 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2478 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2479 iac_decoder_select="imc_decoder"
2480 imc_decoder_select="bswapdsp fft mdct sinewin"
2481 indeo3_decoder_select="hpeldsp"
2482 indeo4_decoder_select="ividsp"
2483 indeo5_decoder_select="ividsp"
2484 interplay_video_decoder_select="hpeldsp"
2485 jpegls_decoder_select="mjpeg_decoder"
2486 jv_decoder_select="blockdsp"
2487 lagarith_decoder_select="llviddsp"
2488 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2489 magicyuv_decoder_select="llviddsp"
2490 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2491 metasound_decoder_select="lsp mdct sinewin"
2492 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2493 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2494 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2495 mjpegb_decoder_select="mjpeg_decoder"
2496 mlp_decoder_select="mlp_parser"
2497 mlp_encoder_select="lpc"
2498 motionpixels_decoder_select="bswapdsp"
2499 mp1_decoder_select="mpegaudio"
2500 mp1float_decoder_select="mpegaudio"
2501 mp2_decoder_select="mpegaudio"
2502 mp2float_decoder_select="mpegaudio"
2503 mp3_decoder_select="mpegaudio"
2504 mp3adu_decoder_select="mpegaudio"
2505 mp3adufloat_decoder_select="mpegaudio"
2506 mp3float_decoder_select="mpegaudio"
2507 mp3on4_decoder_select="mpegaudio"
2508 mp3on4float_decoder_select="mpegaudio"
2509 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2510 mpc8_decoder_select="mpegaudiodsp"
2511 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2512 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2513 mpegvideo_decoder_select="mpegvideo"
2514 mpeg1video_decoder_select="mpegvideo"
2515 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2516 mpeg2video_decoder_select="mpegvideo"
2517 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2518 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2519 mpeg4_encoder_select="h263_encoder"
2520 msa1_decoder_select="mss34dsp"
2521 mscc_decoder_select="zlib"
2522 msmpeg4v1_decoder_select="h263_decoder"
2523 msmpeg4v2_decoder_select="h263_decoder"
2524 msmpeg4v2_encoder_select="h263_encoder"
2525 msmpeg4v3_decoder_select="h263_decoder"
2526 msmpeg4v3_encoder_select="h263_encoder"
2527 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2528 mts2_decoder_select="mss34dsp"
2529 mxpeg_decoder_select="mjpeg_decoder"
2530 nellymoser_decoder_select="mdct sinewin"
2531 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2532 nuv_decoder_select="idctdsp lzo"
2533 on2avc_decoder_select="mdct"
2534 opus_decoder_deps="swresample"
2535 opus_decoder_select="mdct15"
2536 opus_encoder_select="audio_frame_queue mdct15"
2537 png_decoder_select="zlib"
2538 png_encoder_select="llvidencdsp zlib"
2539 prores_decoder_select="blockdsp idctdsp"
2540 prores_encoder_select="fdctdsp"
2541 qcelp_decoder_select="lsp"
2542 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2543 ra_144_decoder_select="audiodsp"
2544 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2545 ralf_decoder_select="golomb"
2546 rawvideo_decoder_select="bswapdsp"
2547 rscc_decoder_select="zlib"
2548 rtjpeg_decoder_select="me_cmp"
2549 rv10_decoder_select="h263_decoder"
2550 rv10_encoder_select="h263_encoder"
2551 rv20_decoder_select="h263_decoder"
2552 rv20_encoder_select="h263_encoder"
2553 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2554 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2555 screenpresso_decoder_select="zlib"
2556 shorten_decoder_select="bswapdsp"
2557 sipr_decoder_select="lsp"
2558 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2559 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2560 sonic_decoder_select="golomb rangecoder"
2561 sonic_encoder_select="golomb rangecoder"
2562 sonic_ls_encoder_select="golomb rangecoder"
2563 sp5x_decoder_select="mjpeg_decoder"
2564 srgc_decoder_select="zlib"
2565 svq1_decoder_select="hpeldsp"
2566 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2567 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2568 svq3_decoder_suggest="zlib"
2569 tak_decoder_select="audiodsp"
2570 tdsc_decoder_select="zlib mjpeg_decoder"
2571 theora_decoder_select="vp3_decoder"
2572 thp_decoder_select="mjpeg_decoder"
2573 tiff_decoder_suggest="zlib lzma"
2574 tiff_encoder_suggest="zlib"
2575 truehd_decoder_select="mlp_parser"
2576 truehd_encoder_select="lpc"
2577 truemotion2_decoder_select="bswapdsp"
2578 truespeech_decoder_select="bswapdsp"
2579 tscc_decoder_select="zlib"
2580 twinvq_decoder_select="mdct lsp sinewin"
2581 txd_decoder_select="texturedsp"
2582 utvideo_decoder_select="bswapdsp llviddsp"
2583 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2584 vble_decoder_select="llviddsp"
2585 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2586 vc1_qsv_decoder_deps="libmfx"
2587 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2588 vc1image_decoder_select="vc1_decoder"
2589 vorbis_decoder_select="mdct"
2590 vorbis_encoder_select="mdct"
2591 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2592 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2593 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2594 vp6a_decoder_select="vp6_decoder"
2595 vp6f_decoder_select="vp6_decoder"
2596 vp7_decoder_select="h264pred videodsp vp8dsp"
2597 vp8_decoder_select="h264pred videodsp vp8dsp"
2598 vp9_decoder_select="videodsp vp9_parser"
2599 webp_decoder_select="vp8_decoder exif"
2600 wmalossless_decoder_select="llauddsp"
2601 wmapro_decoder_select="mdct sinewin wma_freqs"
2602 wmav1_decoder_select="mdct sinewin wma_freqs"
2603 wmav1_encoder_select="mdct sinewin wma_freqs"
2604 wmav2_decoder_select="mdct sinewin wma_freqs"
2605 wmav2_encoder_select="mdct sinewin wma_freqs"
2606 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2607 wmv1_decoder_select="h263_decoder"
2608 wmv1_encoder_select="h263_encoder"
2609 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2610 wmv2_encoder_select="h263_encoder wmv2dsp"
2611 wmv3_decoder_select="vc1_decoder"
2612 wmv3image_decoder_select="wmv3_decoder"
2613 xma1_decoder_select="wmapro_decoder"
2614 xma2_decoder_select="wmapro_decoder"
2615 zerocodec_decoder_select="zlib"
2616 zlib_decoder_select="zlib"
2617 zlib_encoder_select="zlib"
2618 zmbv_decoder_select="zlib"
2619 zmbv_encoder_select="zlib"
2620
2621 # hardware accelerators
2622 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2623 cuda_deps_any="dlopen LoadLibrary"
2624 cuvid_deps="cuda"
2625 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2626 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2627 dxva2_extralibs="-luser32"
2628 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2629 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2630 vda_deps="vda_framework pthreads"
2631 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2632 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2633 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2634 xvmc_deps="X11_extensions_XvMClib_h"
2635
2636 h263_vaapi_hwaccel_deps="vaapi"
2637 h263_vaapi_hwaccel_select="h263_decoder"
2638 h263_videotoolbox_hwaccel_deps="videotoolbox"
2639 h263_videotoolbox_hwaccel_select="h263_decoder"
2640 h264_cuvid_hwaccel_deps="cuda cuvid"
2641 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2642 h264_d3d11va_hwaccel_deps="d3d11va"
2643 h264_d3d11va_hwaccel_select="h264_decoder"
2644 h264_d3d11va2_hwaccel_deps="d3d11va"
2645 h264_d3d11va2_hwaccel_select="h264_decoder"
2646 h264_dxva2_hwaccel_deps="dxva2"
2647 h264_dxva2_hwaccel_select="h264_decoder"
2648 h264_mediacodec_hwaccel_deps="mediacodec"
2649 h264_mmal_hwaccel_deps="mmal"
2650 h264_qsv_hwaccel_deps="libmfx"
2651 h264_vaapi_hwaccel_deps="vaapi"
2652 h264_vaapi_hwaccel_select="h264_decoder"
2653 h264_vda_hwaccel_deps="vda"
2654 h264_vda_hwaccel_select="h264_decoder"
2655 h264_vda_old_hwaccel_deps="vda"
2656 h264_vda_old_hwaccel_select="h264_decoder"
2657 h264_vdpau_hwaccel_deps="vdpau"
2658 h264_vdpau_hwaccel_select="h264_decoder"
2659 h264_videotoolbox_hwaccel_deps="videotoolbox"
2660 h264_videotoolbox_hwaccel_select="h264_decoder"
2661 hevc_cuvid_hwaccel_deps="cuda cuvid"
2662 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2663 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2664 hevc_d3d11va_hwaccel_select="hevc_decoder"
2665 hevc_mediacodec_hwaccel_deps="mediacodec"
2666 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2667 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2668 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2669 hevc_dxva2_hwaccel_select="hevc_decoder"
2670 hevc_qsv_hwaccel_deps="libmfx"
2671 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2672 hevc_vaapi_hwaccel_select="hevc_decoder"
2673 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2674 hevc_vdpau_hwaccel_select="hevc_decoder"
2675 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2676 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2677 mpeg_xvmc_hwaccel_deps="xvmc"
2678 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2679 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2680 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2681 mpeg1_vdpau_hwaccel_deps="vdpau"
2682 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2683 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2684 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2685 mpeg1_xvmc_hwaccel_deps="xvmc"
2686 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2687 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2688 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2689 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2690 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2691 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2692 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2693 mpeg2_dxva2_hwaccel_deps="dxva2"
2694 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2695 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2696 mpeg2_mmal_hwaccel_deps="mmal"
2697 mpeg2_qsv_hwaccel_deps="libmfx"
2698 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2699 mpeg2_vaapi_hwaccel_deps="vaapi"
2700 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2701 mpeg2_vdpau_hwaccel_deps="vdpau"
2702 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2703 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2704 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2705 mpeg2_xvmc_hwaccel_deps="xvmc"
2706 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2707 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2708 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2709 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2710 mpeg4_mmal_hwaccel_deps="mmal"
2711 mpeg4_vaapi_hwaccel_deps="vaapi"
2712 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2713 mpeg4_vdpau_hwaccel_deps="vdpau"
2714 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2715 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2716 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2717 vc1_cuvid_hwaccel_deps="cuda cuvid"
2718 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2719 vc1_d3d11va_hwaccel_deps="d3d11va"
2720 vc1_d3d11va_hwaccel_select="vc1_decoder"
2721 vc1_d3d11va2_hwaccel_deps="d3d11va"
2722 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2723 vc1_dxva2_hwaccel_deps="dxva2"
2724 vc1_dxva2_hwaccel_select="vc1_decoder"
2725 vc1_mmal_hwaccel_deps="mmal"
2726 vc1_qsv_hwaccel_deps="libmfx"
2727 vc1_qsv_hwaccel_select="qsvdec_vc1"
2728 vc1_vaapi_hwaccel_deps="vaapi"
2729 vc1_vaapi_hwaccel_select="vc1_decoder"
2730 vc1_vdpau_hwaccel_deps="vdpau"
2731 vc1_vdpau_hwaccel_select="vc1_decoder"
2732 vp8_cuvid_hwaccel_deps="cuda cuvid"
2733 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2734 vp9_cuvid_hwaccel_deps="cuda cuvid"
2735 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2736 vp8_mediacodec_hwaccel_deps="mediacodec"
2737 vp8_qsv_hwaccel_deps="libmfx"
2738 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2739 vp9_d3d11va_hwaccel_select="vp9_decoder"
2740 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2741 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2742 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2743 vp9_dxva2_hwaccel_select="vp9_decoder"
2744 vp9_mediacodec_hwaccel_deps="mediacodec"
2745 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2746 vp9_vaapi_hwaccel_select="vp9_decoder"
2747 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2748 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2749 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2750 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2751 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2752
2753 # hardware-accelerated codecs
2754 omx_deps="dlopen pthreads"
2755 omx_extralibs='$ldl'
2756 omx_rpi_select="omx"
2757 qsvdec_select="qsv"
2758 qsvenc_select="qsv"
2759 vaapi_encode_deps="vaapi"
2760 v4l2_m2m_deps_any="linux_videodev2_h"
2761
2762 hwupload_cuda_filter_deps="cuda"
2763 scale_npp_filter_deps="cuda libnpp"
2764 scale_cuda_filter_deps="cuda_sdk"
2765 thumbnail_cuda_filter_deps="cuda_sdk"
2766
2767 nvenc_deps="cuda"
2768 nvenc_deps_any="dlopen LoadLibrary"
2769 nvenc_encoder_deps="nvenc"
2770
2771 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2772 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2773 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2774 h264_cuvid_decoder_deps="cuda cuvid"
2775 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2776 h264_mediacodec_decoder_deps="mediacodec"
2777 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2778 h264_mmal_decoder_deps="mmal"
2779 h264_nvenc_encoder_deps="nvenc"
2780 h264_omx_encoder_deps="omx"
2781 h264_qsv_decoder_deps="libmfx"
2782 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2783 h264_qsv_encoder_deps="libmfx"
2784 h264_qsv_encoder_select="qsvenc"
2785 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2786 h264_vaapi_encoder_select="vaapi_encode golomb"
2787 h264_vda_decoder_deps="vda"
2788 h264_vda_decoder_select="h264_decoder"
2789 h264_vdpau_decoder_deps="vdpau"
2790 h264_vdpau_decoder_select="h264_decoder"
2791 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2792 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2793 hevc_cuvid_decoder_deps="cuda cuvid"
2794 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2795 hevc_mediacodec_decoder_deps="mediacodec"
2796 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2797 hevc_nvenc_encoder_deps="nvenc"
2798 hevc_qsv_decoder_deps="libmfx"
2799 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2800 hevc_qsv_encoder_deps="libmfx"
2801 hevc_qsv_encoder_select="hevcparse qsvenc"
2802 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2803 hevc_vaapi_encoder_select="vaapi_encode golomb"
2804 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2805 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2806 mjpeg_cuvid_decoder_deps="cuda cuvid"
2807 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2808 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2809 mpeg1_cuvid_decoder_deps="cuda cuvid"
2810 mpeg1_vdpau_decoder_deps="vdpau"
2811 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2812 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2813 mpeg2_crystalhd_decoder_select="crystalhd"
2814 mpeg2_cuvid_decoder_deps="cuda cuvid"
2815 mpeg2_mmal_decoder_deps="mmal"
2816 mpeg2_mediacodec_decoder_deps="mediacodec"
2817 mpeg2_qsv_decoder_deps="libmfx"
2818 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2819 mpeg2_qsv_encoder_deps="libmfx"
2820 mpeg2_qsv_encoder_select="qsvenc"
2821 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2822 mpeg2_vaapi_encoder_select="vaapi_encode"
2823 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2824 mpeg4_crystalhd_decoder_select="crystalhd"
2825 mpeg4_cuvid_decoder_deps="cuda cuvid"
2826 mpeg4_mediacodec_decoder_deps="mediacodec"
2827 mpeg4_mmal_decoder_deps="mmal"
2828 mpeg4_omx_encoder_deps="omx"
2829 mpeg4_vdpau_decoder_deps="vdpau"
2830 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2831 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2832 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2833 mpeg_vdpau_decoder_deps="vdpau"
2834 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2835 msmpeg4_crystalhd_decoder_select="crystalhd"
2836 nvenc_h264_encoder_select="h264_nvenc_encoder"
2837 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2838 vc1_crystalhd_decoder_select="crystalhd"
2839 vc1_cuvid_decoder_deps="cuda cuvid"
2840 vc1_mmal_decoder_deps="mmal"
2841 vc1_vdpau_decoder_deps="vdpau"
2842 vc1_vdpau_decoder_select="vc1_decoder"
2843 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
2844 vp8_cuvid_decoder_deps="cuda cuvid"
2845 vp8_mediacodec_decoder_deps="mediacodec"
2846 vp8_qsv_decoder_deps="libmfx"
2847 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2848 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2849 vp8_vaapi_encoder_select="vaapi_encode"
2850 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
2851 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
2852 vp9_cuvid_decoder_deps="cuda cuvid"
2853 vp9_mediacodec_decoder_deps="mediacodec"
2854 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2855 vp9_vaapi_encoder_select="vaapi_encode"
2856 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
2857 wmv3_crystalhd_decoder_select="crystalhd"
2858 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2859
2860 # parsers
2861 h264_parser_select="golomb h264dsp h264parse"
2862 hevc_parser_select="hevcparse"
2863 mpegaudio_parser_select="mpegaudioheader"
2864 mpegvideo_parser_select="mpegvideo"
2865 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2866 vc1_parser_select="vc1dsp"
2867
2868 # bitstream_filters
2869 mjpeg2jpeg_bsf_select="jpegtables"
2870
2871 # external libraries
2872 aac_at_decoder_deps="audiotoolbox"
2873 ac3_at_decoder_deps="audiotoolbox"
2874 ac3_at_decoder_select="ac3_parser"
2875 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2876 alac_at_decoder_deps="audiotoolbox"
2877 amr_nb_at_decoder_deps="audiotoolbox"
2878 avisynth_deps_any="dlopen LoadLibrary"
2879 avisynth_demuxer_deps="avisynth"
2880 avisynth_demuxer_select="riffdec"
2881 eac3_at_decoder_deps="audiotoolbox"
2882 eac3_at_decoder_select="ac3_parser"
2883 gsm_ms_at_decoder_deps="audiotoolbox"
2884 ilbc_at_decoder_deps="audiotoolbox"
2885 mp1_at_decoder_deps="audiotoolbox"
2886 mp2_at_decoder_deps="audiotoolbox"
2887 mp3_at_decoder_deps="audiotoolbox"
2888 mp1_at_decoder_select="mpegaudioheader"
2889 mp2_at_decoder_select="mpegaudioheader"
2890 mp3_at_decoder_select="mpegaudioheader"
2891 pcm_alaw_at_decoder_deps="audiotoolbox"
2892 pcm_mulaw_at_decoder_deps="audiotoolbox"
2893 qdmc_at_decoder_deps="audiotoolbox"
2894 qdm2_at_decoder_deps="audiotoolbox"
2895 aac_at_encoder_deps="audiotoolbox"
2896 aac_at_encoder_select="audio_frame_queue"
2897 alac_at_encoder_deps="audiotoolbox"
2898 alac_at_encoder_select="audio_frame_queue"
2899 ilbc_at_encoder_deps="audiotoolbox"
2900 ilbc_at_encoder_select="audio_frame_queue"
2901 pcm_alaw_at_encoder_deps="audiotoolbox"
2902 pcm_alaw_at_encoder_select="audio_frame_queue"
2903 pcm_mulaw_at_encoder_deps="audiotoolbox"
2904 pcm_mulaw_at_encoder_select="audio_frame_queue"
2905 chromaprint_muxer_deps="chromaprint"
2906 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2907 libcelt_decoder_deps="libcelt"
2908 libfdk_aac_decoder_deps="libfdk_aac"
2909 libfdk_aac_encoder_deps="libfdk_aac"
2910 libfdk_aac_encoder_select="audio_frame_queue"
2911 libgme_demuxer_deps="libgme"
2912 libgsm_decoder_deps="libgsm"
2913 libgsm_encoder_deps="libgsm"
2914 libgsm_ms_decoder_deps="libgsm"
2915 libgsm_ms_encoder_deps="libgsm"
2916 libilbc_decoder_deps="libilbc"
2917 libilbc_encoder_deps="libilbc"
2918 libkvazaar_encoder_deps="libkvazaar"
2919 libmodplug_demuxer_deps="libmodplug"
2920 libmp3lame_encoder_deps="libmp3lame"
2921 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2922 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2923 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2924 libopencore_amrnb_encoder_select="audio_frame_queue"
2925 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2926 libopenh264_decoder_deps="libopenh264"
2927 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2928 libopenh264_encoder_deps="libopenh264"
2929 libopenjpeg_decoder_deps="libopenjpeg"
2930 libopenjpeg_encoder_deps="libopenjpeg"
2931 libopenmpt_demuxer_deps="libopenmpt"
2932 libopus_decoder_deps="libopus"
2933 libopus_encoder_deps="libopus"
2934 libopus_encoder_select="audio_frame_queue"
2935 librsvg_decoder_deps="librsvg"
2936 libshine_encoder_deps="libshine"
2937 libshine_encoder_select="audio_frame_queue"
2938 libspeex_decoder_deps="libspeex"
2939 libspeex_encoder_deps="libspeex"
2940 libspeex_encoder_select="audio_frame_queue"
2941 libtheora_encoder_deps="libtheora"
2942 libtwolame_encoder_deps="libtwolame"
2943 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2944 libvorbis_decoder_deps="libvorbis"
2945 libvorbis_encoder_deps="libvorbis"
2946 libvorbis_encoder_select="audio_frame_queue"
2947 libvpx_vp8_decoder_deps="libvpx"
2948 libvpx_vp8_encoder_deps="libvpx"
2949 libvpx_vp9_decoder_deps="libvpx"
2950 libvpx_vp9_encoder_deps="libvpx"
2951 libwavpack_encoder_deps="libwavpack"
2952 libwavpack_encoder_select="audio_frame_queue"
2953 libwebp_encoder_deps="libwebp"
2954 libwebp_anim_encoder_deps="libwebp"
2955 libx262_encoder_deps="libx262"
2956 libx264_encoder_deps="libx264"
2957 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2958 libx264rgb_encoder_select="libx264_encoder"
2959 libx265_encoder_deps="libx265"
2960 libxavs_encoder_deps="libxavs"
2961 libxvid_encoder_deps="libxvid"
2962 libzvbi_teletext_decoder_deps="libzvbi"
2963 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2964 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2965 videotoolbox_encoder_suggest="vda_framework"
2966
2967 # demuxers / muxers
2968 ac3_demuxer_select="ac3_parser"
2969 aiff_muxer_select="iso_media"
2970 asf_demuxer_select="riffdec"
2971 asf_o_demuxer_select="riffdec"
2972 asf_muxer_select="riffenc"
2973 asf_stream_muxer_select="asf_muxer"
2974 avi_demuxer_select="iso_media riffdec exif"
2975 avi_muxer_select="riffenc"
2976 caf_demuxer_select="iso_media riffdec"
2977 caf_muxer_select="iso_media"
2978 dash_muxer_select="mp4_muxer"
2979 dash_demuxer_deps="libxml2"
2980 dirac_demuxer_select="dirac_parser"
2981 dts_demuxer_select="dca_parser"
2982 dtshd_demuxer_select="dca_parser"
2983 dv_demuxer_select="dvprofile"
2984 dv_muxer_select="dvprofile"
2985 dxa_demuxer_select="riffdec"
2986 eac3_demuxer_select="ac3_parser"
2987 f4v_muxer_select="mov_muxer"
2988 fifo_muxer_deps="threads"
2989 flac_demuxer_select="flac_parser"
2990 hds_muxer_select="flv_muxer"
2991 hls_muxer_select="mpegts_muxer"
2992 image2_alias_pix_demuxer_select="image2_demuxer"
2993 image2_brender_pix_demuxer_select="image2_demuxer"
2994 ipod_muxer_select="mov_muxer"
2995 ismv_muxer_select="mov_muxer"
2996 matroska_audio_muxer_select="matroska_muxer"
2997 matroska_demuxer_select="iso_media riffdec"
2998 matroska_demuxer_suggest="bzlib lzo zlib"
2999 matroska_muxer_select="iso_media riffenc"
3000 mmf_muxer_select="riffenc"
3001 mov_demuxer_select="iso_media riffdec"
3002 mov_demuxer_suggest="zlib"
3003 mov_muxer_select="iso_media riffenc rtpenc_chain"
3004 mp3_demuxer_select="mpegaudio_parser"
3005 mp3_muxer_select="mpegaudioheader"
3006 mp4_muxer_select="mov_muxer"
3007 mpegts_demuxer_select="iso_media"
3008 mpegts_muxer_select="adts_muxer latm_muxer"
3009 mpegtsraw_demuxer_select="mpegts_demuxer"
3010 mxf_d10_muxer_select="mxf_muxer"
3011 mxf_opatom_muxer_select="mxf_muxer"
3012 nut_muxer_select="riffenc"
3013 nuv_demuxer_select="riffdec"
3014 oga_muxer_select="ogg_muxer"
3015 ogg_demuxer_select="dirac_parse"
3016 ogv_muxer_select="ogg_muxer"
3017 opus_muxer_select="ogg_muxer"
3018 psp_muxer_select="mov_muxer"
3019 rtp_demuxer_select="sdp_demuxer"
3020 rtp_muxer_select="golomb"
3021 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3022 rtsp_demuxer_select="http_protocol rtpdec"
3023 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3024 sap_demuxer_select="sdp_demuxer"
3025 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3026 sdp_demuxer_select="rtpdec"
3027 smoothstreaming_muxer_select="ismv_muxer"
3028 spdif_muxer_select="aac_parser"
3029 spx_muxer_select="ogg_muxer"
3030 swf_demuxer_suggest="zlib"
3031 tak_demuxer_select="tak_parser"
3032 tg2_muxer_select="mov_muxer"
3033 tgp_muxer_select="mov_muxer"
3034 vobsub_demuxer_select="mpegps_demuxer"
3035 w64_demuxer_select="wav_demuxer"
3036 w64_muxer_select="wav_muxer"
3037 wav_demuxer_select="riffdec"
3038 wav_muxer_select="riffenc"
3039 webm_muxer_select="iso_media riffenc"
3040 webm_dash_manifest_demuxer_select="matroska_demuxer"
3041 wtv_demuxer_select="mpegts_demuxer riffdec"
3042 wtv_muxer_select="mpegts_muxer riffenc"
3043 xmv_demuxer_select="riffdec"
3044 xwma_demuxer_select="riffdec"
3045
3046 # indevs / outdevs
3047 alsa_indev_deps="alsa"
3048 alsa_outdev_deps="alsa"
3049 avfoundation_indev_deps="avfoundation pthreads"
3050 avfoundation_indev_extralibs="-framework Foundation -framework CoreVideo -framework CoreMedia"
3051 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3052 caca_outdev_deps="libcaca"
3053 decklink_indev_deps="decklink threads"
3054 decklink_indev_extralibs="-lstdc++"
3055 decklink_outdev_deps="decklink threads"
3056 decklink_outdev_extralibs="-lstdc++"
3057 libndi_newtek_indev_deps="libndi_newtek"
3058 libndi_newtek_indev_extralibs="-lndi"
3059 libndi_newtek_outdev_deps="libndi_newtek"
3060 libndi_newtek_outdev_extralibs="-lndi"
3061 dshow_indev_deps="IBaseFilter"
3062 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3063 dv1394_indev_deps="dv1394"
3064 dv1394_indev_select="dv_demuxer"
3065 fbdev_indev_deps="linux_fb_h"
3066 fbdev_outdev_deps="linux_fb_h"
3067 gdigrab_indev_deps="CreateDIBSection"
3068 gdigrab_indev_extralibs="-lgdi32"
3069 gdigrab_indev_select="bmp_decoder"
3070 iec61883_indev_deps="libiec61883"
3071 jack_indev_deps="jack"
3072 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3073 kmsgrab_indev_deps="libdrm"
3074 lavfi_indev_deps="avfilter"
3075 libcdio_indev_deps="libcdio"
3076 libdc1394_indev_deps="libdc1394"
3077 libv4l2_indev_deps="libv4l2"
3078 openal_indev_deps="openal"
3079 opengl_outdev_deps="opengl"
3080 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3081 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3082 pulse_indev_deps="libpulse"
3083 pulse_outdev_deps="libpulse"
3084 sdl2_outdev_deps="sdl2"
3085 sndio_indev_deps="sndio"
3086 sndio_outdev_deps="sndio"
3087 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3088 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3089 vfwcap_indev_deps="vfw32 vfwcap_defines"
3090 xcbgrab_indev_deps="libxcb"
3091 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3092 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3093 xv_outdev_extralibs="-lXv -lX11 -lXext"
3094
3095 # protocols
3096 async_protocol_deps="threads"
3097 bluray_protocol_deps="libbluray"
3098 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3099 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3100 ffrtmpcrypt_protocol_select="tcp_protocol"
3101 ffrtmphttp_protocol_deps="!librtmp_protocol"
3102 ffrtmphttp_protocol_select="http_protocol"
3103 ftp_protocol_select="tcp_protocol"
3104 gopher_protocol_select="network"
3105 http_protocol_select="tcp_protocol"
3106 httpproxy_protocol_select="tcp_protocol"
3107 https_protocol_select="tls_protocol"
3108 icecast_protocol_select="http_protocol"
3109 librtmp_protocol_deps="librtmp"
3110 librtmpe_protocol_deps="librtmp"
3111 librtmps_protocol_deps="librtmp"
3112 librtmpt_protocol_deps="librtmp"
3113 librtmpte_protocol_deps="librtmp"
3114 libsmbclient_protocol_deps="libsmbclient gplv3"
3115 libssh_protocol_deps="libssh"
3116 mmsh_protocol_select="http_protocol"
3117 mmst_protocol_select="network"
3118 rtmp_protocol_deps="!librtmp_protocol"
3119 rtmp_protocol_select="tcp_protocol"
3120 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3121 rtmps_protocol_deps="!librtmp_protocol"
3122 rtmps_protocol_select="tls_protocol"
3123 rtmpt_protocol_select="ffrtmphttp_protocol"
3124 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3125 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3126 rtp_protocol_select="udp_protocol"
3127 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3128 sctp_protocol_select="network"
3129 srtp_protocol_select="rtp_protocol srtp"
3130 tcp_protocol_select="network"
3131 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3132 tls_gnutls_protocol_select="tcp_protocol"
3133 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3134 tls_openssl_protocol_select="tcp_protocol"
3135 tls_schannel_protocol_deps="schannel"
3136 tls_schannel_protocol_select="tcp_protocol"
3137 tls_securetransport_protocol_deps="securetransport"
3138 tls_securetransport_protocol_select="tcp_protocol"
3139 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3140 udp_protocol_select="network"
3141 udplite_protocol_select="network"
3142 unix_protocol_deps="sys_un_h"
3143 unix_protocol_select="network"
3144
3145 # filters
3146 afftfilt_filter_deps="avcodec"
3147 afftfilt_filter_select="fft"
3148 afir_filter_deps="avcodec"
3149 afir_filter_select="fft"
3150 amovie_filter_deps="avcodec avformat"
3151 aresample_filter_deps="swresample"
3152 ass_filter_deps="libass"
3153 atempo_filter_deps="avcodec"
3154 atempo_filter_select="rdft"
3155 azmq_filter_deps="libzmq"
3156 blackframe_filter_deps="gpl"
3157 boxblur_filter_deps="gpl"
3158 bs2b_filter_deps="libbs2b"
3159 colormatrix_filter_deps="gpl"
3160 coreimage_filter_deps="coreimage appkit"
3161 coreimage_filter_extralibs="-framework OpenGL"
3162 coreimagesrc_filter_deps="coreimage appkit"
3163 coreimagesrc_filter_extralibs="-framework OpenGL"
3164 cover_rect_filter_deps="avcodec avformat gpl"
3165 cropdetect_filter_deps="gpl"
3166 deinterlace_qsv_filter_deps="libmfx"
3167 deinterlace_vaapi_filter_deps="vaapi"
3168 delogo_filter_deps="gpl"
3169 deshake_filter_select="pixelutils"
3170 drawtext_filter_deps="libfreetype"
3171 drawtext_filter_suggest="libfontconfig"
3172 elbg_filter_deps="avcodec"
3173 eq_filter_deps="gpl"
3174 fftfilt_filter_deps="avcodec"
3175 fftfilt_filter_select="rdft"
3176 find_rect_filter_deps="avcodec avformat gpl"
3177 firequalizer_filter_deps="avcodec"
3178 firequalizer_filter_select="rdft"
3179 flite_filter_deps="libflite"
3180 framerate_filter_select="pixelutils"
3181 frei0r_filter_deps="frei0r dlopen"
3182 frei0r_src_filter_deps="frei0r dlopen"
3183 fspp_filter_deps="gpl"
3184 geq_filter_deps="gpl"
3185 histeq_filter_deps="gpl"
3186 hqdn3d_filter_deps="gpl"
3187 interlace_filter_deps="gpl"
3188 kerndeint_filter_deps="gpl"
3189 ladspa_filter_deps="ladspa dlopen"
3190 mcdeint_filter_deps="avcodec gpl"
3191 movie_filter_deps="avcodec avformat"
3192 mpdecimate_filter_deps="gpl"
3193 mpdecimate_filter_select="pixelutils"
3194 mptestsrc_filter_deps="gpl"
3195 negate_filter_deps="lut_filter"
3196 nnedi_filter_deps="gpl"
3197 ocr_filter_deps="libtesseract"
3198 ocv_filter_deps="libopencv"
3199 owdenoise_filter_deps="gpl"
3200 pan_filter_deps="swresample"
3201 perspective_filter_deps="gpl"
3202 phase_filter_deps="gpl"
3203 pp7_filter_deps="gpl"
3204 pp_filter_deps="gpl postproc"
3205 pullup_filter_deps="gpl"
3206 removelogo_filter_deps="avcodec avformat swscale"
3207 repeatfields_filter_deps="gpl"
3208 resample_filter_deps="avresample"
3209 rubberband_filter_deps="librubberband"
3210 sab_filter_deps="gpl swscale"
3211 scale2ref_filter_deps="swscale"
3212 scale_filter_deps="swscale"
3213 scale_qsv_filter_deps="libmfx"
3214 select_filter_select="pixelutils"
3215 showcqt_filter_deps="avcodec avformat swscale"
3216 showcqt_filter_select="fft"
3217 showfreqs_filter_deps="avcodec"
3218 showfreqs_filter_select="fft"
3219 showspectrum_filter_deps="avcodec"
3220 showspectrum_filter_select="fft"
3221 showspectrumpic_filter_deps="avcodec"
3222 showspectrumpic_filter_select="fft"
3223 signature_filter_deps="gpl avcodec avformat"
3224 smartblur_filter_deps="gpl swscale"
3225 sofalizer_filter_deps="libmysofa avcodec"
3226 sofalizer_filter_select="fft"
3227 spectrumsynth_filter_deps="avcodec"
3228 spectrumsynth_filter_select="fft"
3229 spp_filter_deps="gpl avcodec"
3230 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3231 stereo3d_filter_deps="gpl"
3232 subtitles_filter_deps="avformat avcodec libass"
3233 super2xsai_filter_deps="gpl"
3234 pixfmts_super2xsai_test_deps="super2xsai_filter"
3235 tinterlace_filter_deps="gpl"
3236 tinterlace_merge_test_deps="tinterlace_filter"
3237 tinterlace_pad_test_deps="tinterlace_filter"
3238 tonemap_filter_deps="const_nan"
3239 uspp_filter_deps="gpl avcodec"
3240 vaguedenoiser_filter_deps="gpl"
3241 vidstabdetect_filter_deps="libvidstab"
3242 vidstabtransform_filter_deps="libvidstab"
3243 libvmaf_filter_deps="libvmaf"
3244 zmq_filter_deps="libzmq"
3245 zoompan_filter_deps="swscale"
3246 zscale_filter_deps="libzimg const_nan"
3247 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3248
3249 # examples
3250 avio_dir_cmd_deps="avformat avutil"
3251 avio_reading_deps="avformat avcodec avutil"
3252 decode_audio_example_deps="avcodec avutil"
3253 decode_video_example_deps="avcodec avutil"
3254 demuxing_decoding_example_deps="avcodec avformat avutil"
3255 encode_audio_example_deps="avcodec avutil"
3256 encode_video_example_deps="avcodec avutil"
3257 extract_mvs_example_deps="avcodec avformat avutil"
3258 filter_audio_example_deps="avfilter avutil"
3259 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3260 filtering_video_example_deps="avfilter avcodec avformat avutil"
3261 http_multiclient_example_deps="avformat avutil fork"
3262 hw_decode_example_deps="avcodec avformat avutil"
3263 metadata_example_deps="avformat avutil"
3264 muxing_example_deps="avcodec avformat avutil swscale"
3265 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3266 remuxing_example_deps="avcodec avformat avutil"
3267 resampling_audio_example_deps="avutil swresample"
3268 scaling_video_example_deps="avutil swscale"
3269 transcode_aac_example_deps="avcodec avformat swresample"
3270 transcoding_example_deps="avfilter avcodec avformat avutil"
3271
3272 # libraries, in linking order
3273 avcodec_deps="avutil"
3274 avcodec_select="null_bsf"
3275 avdevice_deps="avformat avcodec avutil"
3276 avfilter_deps="avutil"
3277 avformat_deps="avcodec avutil"
3278 avformat_suggest="network"
3279 avresample_deps="avutil"
3280 postproc_deps="avutil gpl"
3281 swresample_deps="avutil"
3282 swscale_deps="avutil"
3283
3284 # programs
3285 ffmpeg_deps="avcodec avfilter avformat swresample"
3286 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3287                null_filter
3288                trim_filter"
3289 ffplay_deps="avcodec avformat swscale swresample sdl2"
3290 ffplay_extralibs='$sdl2_extralibs'
3291 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3292 ffprobe_deps="avcodec avformat"
3293 ffserver_deps="avformat fork sarestart"
3294 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3295
3296 # documentation
3297 podpages_deps="perl"
3298 manpages_deps="perl pod2man"
3299 htmlpages_deps="perl"
3300 htmlpages_deps_any="makeinfo_html texi2html"
3301 txtpages_deps="perl makeinfo"
3302 doc_deps_any="manpages htmlpages podpages txtpages"
3303
3304 # default parameters
3305
3306 logfile="ffbuild/config.log"
3307
3308 # installation paths
3309 prefix_default="/usr/local"
3310 bindir_default='${prefix}/bin'
3311 datadir_default='${prefix}/share/ffmpeg'
3312 docdir_default='${prefix}/share/doc/ffmpeg'
3313 incdir_default='${prefix}/include'
3314 libdir_default='${prefix}/lib'
3315 mandir_default='${prefix}/share/man'
3316
3317 # toolchain
3318 ar_default="ar"
3319 cc_default="gcc"
3320 cxx_default="g++"
3321 host_cc_default="gcc"
3322 doxygen_default="doxygen"
3323 install="install"
3324 ln_s_default="ln -s -f"
3325 nm_default="nm -g"
3326 pkg_config_default=pkg-config
3327 ranlib_default="ranlib"
3328 strip_default="strip"
3329 version_script='--version-script'
3330 x86asmexe_default="nasm"
3331 windres_default="windres"
3332 nvcc_default="nvcc"
3333 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3334
3335 # OS
3336 target_os_default=$(tolower $(uname -s))
3337 host_os=$target_os_default
3338
3339 # machine
3340 if test "$target_os_default" = aix; then
3341     arch_default=$(uname -p)
3342     strip_default="strip -X32_64"
3343 else
3344     arch_default=$(uname -m)
3345 fi
3346 cpu="generic"
3347 intrinsics="none"
3348
3349 # configurable options
3350 enable $PROGRAM_LIST
3351 enable $DOCUMENT_LIST
3352 enable $EXAMPLE_LIST
3353 enable $(filter_out avresample $LIBRARY_LIST)
3354 enable stripping
3355
3356 enable asm
3357 enable debug
3358 enable doc
3359 enable faan faandct faanidct
3360 enable optimizations
3361 enable runtime_cpudetect
3362 enable safe_bitstream_reader
3363 enable static
3364 enable swscale_alpha
3365 enable valgrind_backtrace
3366
3367 sws_max_filter_size_default=256
3368 set_default sws_max_filter_size
3369
3370 # build settings
3371 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3372 LIBPREF="lib"
3373 LIBSUF=".a"
3374 FULLNAME='$(NAME)$(BUILDSUF)'
3375 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3376 SLIBPREF="lib"
3377 SLIBSUF=".so"
3378 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3379 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3380 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3381 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3382 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3383 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3384 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3385
3386 asflags_filter=echo
3387 cflags_filter=echo
3388 ldflags_filter=echo
3389
3390 AS_C='-c'
3391 AS_O='-o $@'
3392 CC_C='-c'
3393 CC_E='-E -o $@'
3394 CC_O='-o $@'
3395 CXX_C='-c'
3396 CXX_O='-o $@'
3397 OBJCC_C='-c'
3398 OBJCC_E='-E -o $@'
3399 OBJCC_O='-o $@'
3400 X86ASM_O='-o $@'
3401 LD_O='-o $@'
3402 LD_LIB='-l%'
3403 LD_PATH='-L'
3404 HOSTCC_C='-c'
3405 HOSTCC_E='-E -o $@'
3406 HOSTCC_O='-o $@'
3407 HOSTLD_O='-o $@'
3408 NVCC_C='-c'
3409 NVCC_O='-o $@'
3410
3411 host_extralibs='-lm'
3412 host_cflags_filter=echo
3413 host_ldflags_filter=echo
3414
3415 target_path='$(CURDIR)'
3416
3417 # since the object filename is not given with the -MM flag, the compiler
3418 # is only able to print the basename, and we must add the path ourselves
3419 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3420 DEPFLAGS='-MM'
3421
3422 mkdir -p ffbuild
3423
3424 # find source path
3425 if test -f configure; then
3426     source_path=.
3427 else
3428     source_path=$(cd $(dirname "$0"); pwd)
3429     case "$source_path" in
3430         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3431     esac
3432     test -e "$source_path/config.h" &&
3433         die "Out of tree builds are impossible with config.h in source dir."
3434 fi
3435
3436 for v in "$@"; do
3437     r=${v#*=}
3438     l=${v%"$r"}
3439     r=$(sh_quote "$r")
3440     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3441 done
3442
3443 find_things(){
3444     thing=$1
3445     pattern=$2
3446     file=$source_path/$3
3447     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3448 }
3449
3450 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3451 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3452 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3453 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3454 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3455 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3456 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3457 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3458 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3459
3460 find_things_extern(){
3461     thing=$1
3462     pattern=$2
3463     file=$source_path/$3
3464     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3465 }
3466
3467 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3468 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3469
3470 ALL_COMPONENTS="
3471     $BSF_LIST
3472     $DECODER_LIST
3473     $DEMUXER_LIST
3474     $ENCODER_LIST
3475     $FILTER_LIST
3476     $HWACCEL_LIST
3477     $INDEV_LIST
3478     $MUXER_LIST
3479     $OUTDEV_LIST
3480     $PARSER_LIST
3481     $PROTOCOL_LIST
3482 "
3483
3484 for n in $COMPONENT_LIST; do
3485     v=$(toupper ${n%s})_LIST
3486     eval enable \$$v
3487     eval ${n}_if_any="\$$v"
3488 done
3489
3490 enable $ARCH_EXT_LIST
3491
3492 die_unknown(){
3493     echo "Unknown option \"$1\"."
3494     echo "See $0 --help for available options."
3495     exit 1
3496 }
3497
3498 print_in_columns() {
3499     cols=$(expr $ncols / 24)
3500     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3501 }
3502
3503 show_list() {
3504     suffix=_$1
3505     shift
3506     echo $* | sed s/$suffix//g | print_in_columns
3507     exit 0
3508 }
3509
3510 rand_list(){
3511     IFS=', '
3512     set -- $*
3513     unset IFS
3514     for thing; do
3515         comp=${thing%:*}
3516         prob=${thing#$comp}
3517         prob=${prob#:}
3518         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3519         echo "prob ${prob:-0.5}"
3520         printf '%s\n' $comp
3521     done
3522 }
3523
3524 do_random(){
3525     action=$1
3526     shift
3527     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3528     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3529 }
3530
3531 for opt do
3532     optval="${opt#*=}"
3533     case "$opt" in
3534         --extra-ldflags=*)
3535             add_ldflags $optval
3536         ;;
3537         --extra-ldexeflags=*)
3538             add_ldexeflags $optval
3539         ;;
3540         --extra-ldlibflags=*)
3541             add_ldlibflags $optval
3542         ;;
3543         --extra-libs=*)
3544             add_extralibs $optval
3545         ;;
3546         --disable-devices)
3547             disable $INDEV_LIST $OUTDEV_LIST
3548         ;;
3549         --enable-debug=*)
3550             debuglevel="$optval"
3551         ;;
3552         --disable-programs)
3553             disable $PROGRAM_LIST
3554         ;;
3555         --disable-everything)
3556             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3557         ;;
3558         --disable-all)
3559             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3560             disable $LIBRARY_LIST $PROGRAM_LIST doc
3561             enable avutil
3562         ;;
3563         --enable-random|--disable-random)
3564             action=${opt%%-random}
3565             do_random ${action#--} $COMPONENT_LIST
3566         ;;
3567         --enable-random=*|--disable-random=*)
3568             action=${opt%%-random=*}
3569             do_random ${action#--} $optval
3570         ;;
3571         --enable-sdl)
3572             enable sdl2
3573         ;;
3574         --enable-*=*|--disable-*=*)
3575             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3576             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3577             eval list=\$$(toupper $thing)_LIST
3578             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3579             list=$(filter "$name" $list)
3580             [ "$list" = "" ] && warn "Option $opt did not match anything"
3581             $action $list
3582         ;;
3583         --enable-yasm|--disable-yasm)
3584             warn "The ${opt} option is only provided for compatibility and will be\n"\
3585                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3586             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3587         ;;
3588         --yasmexe=*)
3589             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3590                  "removed in the future. Use --x86asmexe instead."
3591             x86asmexe="$optval"
3592         ;;
3593         --enable-?*|--disable-?*)
3594             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3595             if is_in $option $COMPONENT_LIST; then
3596                 test $action = disable && action=unset
3597                 eval $action \$$(toupper ${option%s})_LIST
3598             elif is_in $option $CMDLINE_SELECT; then
3599                 $action $option
3600             else
3601                 die_unknown $opt
3602             fi
3603         ;;
3604         --list-*)
3605             NAME="${opt#--list-}"
3606             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3607             NAME=${NAME%s}
3608             eval show_list $NAME \$$(toupper $NAME)_LIST
3609         ;;
3610         --help|-h) show_help
3611         ;;
3612         --quiet|-q) quiet=yes
3613         ;;
3614         --fatal-warnings) enable fatal_warnings
3615         ;;
3616         --libfuzzer=*)
3617             libfuzzer_path="$optval"
3618         ;;
3619         *)
3620             optname="${opt%%=*}"
3621             optname="${optname#--}"
3622             optname=$(echo "$optname" | sed 's/-/_/g')
3623             if is_in $optname $CMDLINE_SET; then
3624                 eval $optname='$optval'
3625             elif is_in $optname $CMDLINE_APPEND; then
3626                 append $optname "$optval"
3627             else
3628                 die_unknown $opt
3629             fi
3630         ;;
3631     esac
3632 done
3633
3634 for e in $env; do
3635     eval "export $e"
3636 done
3637
3638 if disabled autodetect; then
3639
3640     # Unless iconv is explicitely disabled by the user, we still want to probe
3641     # for the iconv from the libc.
3642     disabled iconv || enable libc_iconv
3643
3644     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3645     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3646 fi
3647 # Mark specifically enabled, but normally autodetected libraries as requested.
3648 for lib in $AUTODETECT_LIBS; do
3649     enabled $lib && request $lib
3650 done
3651 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3652 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3653 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3654
3655 disabled logging && logfile=/dev/null
3656
3657 die_license_disabled() {
3658     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3659 }
3660
3661 die_license_disabled_gpl() {
3662     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3663 }
3664
3665 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3666 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3667
3668 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3669 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3670
3671 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3672
3673 # Disable all the library-specific components if the library itself
3674 # is disabled, see AVCODEC_LIST and following _LIST variables.
3675
3676 disable_components(){
3677     disabled ${1} && disable $(
3678         eval components="\$$(toupper ${1})_COMPONENTS"
3679         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3680     )
3681 }
3682
3683 map 'disable_components $v' $LIBRARY_LIST
3684
3685 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3686 set >> $logfile
3687
3688 test -n "$valgrind" && toolchain="valgrind-memcheck"
3689
3690 enabled ossfuzz && {
3691     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3692     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3693 }
3694
3695 case "$toolchain" in
3696     *-asan)
3697         cc_default="${toolchain%-asan}"
3698         add_cflags  -fsanitize=address
3699         add_ldflags -fsanitize=address
3700     ;;
3701     *-msan)
3702         cc_default="${toolchain%-msan}"
3703         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3704         add_ldflags -fsanitize=memory
3705     ;;
3706     *-tsan)
3707         cc_default="${toolchain%-tsan}"
3708         add_cflags  -fsanitize=thread -fPIE
3709         add_ldflags -fsanitize=thread -pie
3710         case "$toolchain" in
3711             gcc-tsan)
3712                 add_cflags  -fPIC
3713                 add_ldflags -fPIC
3714                 ;;
3715         esac
3716     ;;
3717     *-usan)
3718         cc_default="${toolchain%-usan}"
3719         add_cflags  -fsanitize=undefined
3720         add_ldflags -fsanitize=undefined
3721     ;;
3722     valgrind-*)
3723         target_exec_default="valgrind"
3724         case "$toolchain" in
3725             valgrind-massif)
3726                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3727                 ;;
3728             valgrind-memcheck)
3729                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3730                 ;;
3731         esac
3732     ;;
3733     msvc)
3734         # Check whether the current MSVC version needs the C99 converter.
3735         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3736         # support enough of C99 to build ffmpeg. Default to the new
3737         # behaviour if the regexp was unable to match anything, since this
3738         # successfully parses the version number of existing supported
3739         # versions that require the converter (MSVC 2010 and 2012).
3740         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3741         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3742             cc_default="cl"
3743             cxx_default="cl"
3744         else
3745             cc_default="c99wrap cl"
3746             cxx_default="c99wrap cl"
3747         fi
3748         ld_default="$source_path/compat/windows/mslink"
3749         nm_default="dumpbin -symbols"
3750         ar_default="lib"
3751         case "$arch" in
3752         arm*)
3753             as_default="armasm"
3754             ;;
3755         esac
3756         target_os_default="win32"
3757         # Use a relative path for TMPDIR. This makes sure all the
3758         # ffconf temp files are written with a relative path, avoiding
3759         # issues with msys/win32 path conversion for MSVC parameters
3760         # such as -Fo<file> or -out:<file>.
3761         TMPDIR=.
3762     ;;
3763     icl)
3764         cc_default="icl"
3765         ld_default="xilink"
3766         nm_default="dumpbin -symbols"
3767         ar_default="xilib"
3768         target_os_default="win32"
3769         TMPDIR=.
3770     ;;
3771     gcov)
3772         add_cflags  -fprofile-arcs -ftest-coverage
3773         add_ldflags -fprofile-arcs -ftest-coverage
3774     ;;
3775     llvm-cov)
3776         add_cflags -fprofile-arcs -ftest-coverage
3777         add_ldflags --coverage
3778     ;;
3779     hardened)
3780         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3781         add_cflags   -fno-strict-overflow -fstack-protector-all
3782         add_ldflags  -Wl,-z,relro -Wl,-z,now
3783         add_cflags   -fPIE
3784         add_ldexeflags -fPIE -pie
3785     ;;
3786     ?*)
3787         die "Unknown toolchain $toolchain"
3788     ;;
3789 esac
3790
3791 test -n "$cross_prefix" && enable cross_compile
3792
3793 if enabled cross_compile; then
3794     test -n "$arch" && test -n "$target_os" ||
3795         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3796 fi
3797
3798 ar_default="${cross_prefix}${ar_default}"
3799 cc_default="${cross_prefix}${cc_default}"
3800 cxx_default="${cross_prefix}${cxx_default}"
3801 nm_default="${cross_prefix}${nm_default}"
3802 pkg_config_default="${cross_prefix}${pkg_config_default}"
3803 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3804     ranlib_default="${cross_prefix}${ranlib_default} -D"
3805 else
3806     ranlib_default="${cross_prefix}${ranlib_default}"
3807 fi
3808 strip_default="${cross_prefix}${strip_default}"
3809 windres_default="${cross_prefix}${windres_default}"
3810
3811 sysinclude_default="${sysroot}/usr/include"
3812
3813 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3814     target_exec target_os x86asmexe nvcc
3815 enabled cross_compile || host_cc_default=$cc
3816 set_default host_cc
3817
3818 pkg_config_fail_message=""
3819 if ! $pkg_config --version >/dev/null 2>&1; then
3820     warn "$pkg_config not found, library detection may fail."
3821     pkg_config=false
3822 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3823     pkg_config_fail_message="
3824 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3825 fi
3826
3827 if test $doxygen != $doxygen_default && \
3828   ! $doxygen --version >/dev/null 2>&1; then
3829     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3830 fi
3831
3832 exesuf() {
3833     case $1 in
3834         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3835     esac
3836 }
3837
3838 EXESUF=$(exesuf $target_os)
3839 HOSTEXESUF=$(exesuf $host_os)
3840
3841 # set temporary file name
3842 : ${TMPDIR:=$TEMPDIR}
3843 : ${TMPDIR:=$TMP}
3844 : ${TMPDIR:=/tmp}
3845
3846 if [ -n "$tempprefix" ] ; then
3847     mktemp(){
3848         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3849         echo "$tmpname"
3850         mkdir "$tmpname"
3851     }
3852 elif ! check_cmd mktemp -u XXXXXX; then
3853     # simple replacement for missing mktemp
3854     # NOT SAFE FOR GENERAL USE
3855     mktemp(){
3856         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3857         echo "$tmpname"
3858         mkdir "$tmpname"
3859     }
3860 fi
3861
3862 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3863     die "Unable to create temporary directory in $TMPDIR."
3864
3865 tmpfile(){
3866     tmp="${FFTMPDIR}/test"$2
3867     (set -C; exec > $tmp) 2> /dev/null ||
3868         die "Unable to create temporary file in $FFTMPDIR."
3869     eval $1=$tmp
3870 }
3871
3872 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3873 trap 'exit 2' INT
3874
3875 tmpfile TMPASM .asm
3876 tmpfile TMPC   .c
3877 tmpfile TMPCPP .cpp
3878 tmpfile TMPE   $EXESUF
3879 tmpfile TMPH   .h
3880 tmpfile TMPM   .m
3881 tmpfile TMPO   .o
3882 tmpfile TMPS   .S
3883 tmpfile TMPSH  .sh
3884 tmpfile TMPV   .ver
3885
3886 unset -f mktemp
3887
3888 chmod +x $TMPE
3889
3890 # make sure we can execute files in $TMPDIR
3891 cat > $TMPSH 2>> $logfile <<EOF
3892 #! /bin/sh
3893 EOF
3894 chmod +x $TMPSH >> $logfile 2>&1
3895 if ! $TMPSH >> $logfile 2>&1; then
3896     cat <<EOF
3897 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3898 variable to another directory and make sure that it is not mounted noexec.
3899 EOF
3900     die "Sanity test failed."
3901 fi
3902
3903 armasm_flags(){
3904     for flag; do
3905         case $flag in
3906             # Filter out MSVC cl.exe options from cflags that shouldn't
3907             # be passed to gas-preprocessor
3908             -M[TD]*)                                            ;;
3909             *)                  echo $flag                      ;;
3910         esac
3911    done
3912 }
3913
3914 ccc_flags(){
3915     for flag; do
3916         case $flag in
3917             -std=c99)           echo -c99                       ;;
3918             -mcpu=*)            echo -arch ${flag#*=}           ;;
3919             -mieee)             echo -ieee                      ;;
3920             -O*|-fast)          echo $flag                      ;;
3921             -fno-math-errno)    echo -assume nomath_errno       ;;
3922             -g)                 echo -g3                        ;;
3923             -Wall)              echo -msg_enable level2         ;;
3924             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3925             -Wl,*)              echo $flag                      ;;
3926             -f*|-W*)                                            ;;
3927             *)                  echo $flag                      ;;
3928         esac
3929    done
3930 }
3931
3932 cparser_flags(){
3933     for flag; do
3934         case $flag in
3935             -Wno-switch)             echo -Wno-switch-enum ;;
3936             -Wno-format-zero-length) ;;
3937             -Wdisabled-optimization) ;;
3938             -Wno-pointer-sign)       echo -Wno-other ;;
3939             *)                       echo $flag ;;
3940         esac
3941     done
3942 }
3943
3944 msvc_common_flags(){
3945     for flag; do
3946         case $flag in
3947             # In addition to specifying certain flags under the compiler
3948             # specific filters, they must be specified here as well or else the
3949             # generic catch all at the bottom will print the original flag.
3950             -Wall)                ;;
3951             -Wextra)              ;;
3952             -std=c99)             ;;
3953             # Common flags
3954             -fomit-frame-pointer) ;;
3955             -g)                   echo -Z7 ;;
3956             -fno-math-errno)      ;;
3957             -fno-common)          ;;
3958             -fno-signed-zeros)    ;;
3959             -fPIC)                ;;
3960             -mthumb)              ;;
3961             -march=*)             ;;
3962             -lz)                  echo zlib.lib ;;
3963             -lx264)               echo libx264.lib ;;
3964             -lstdc++)             ;;
3965             -l*)                  echo ${flag#-l}.lib ;;
3966             -LARGEADDRESSAWARE)   echo $flag ;;
3967             -L*)                  echo -libpath:${flag#-L} ;;
3968             *)                    echo $flag ;;
3969         esac
3970     done
3971 }
3972
3973 msvc_flags(){
3974     msvc_common_flags "$@"
3975     for flag; do
3976         case $flag in
3977             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3978                                        -wd4554 ;;
3979             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3980                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3981                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3982                                        -wd4307 \
3983                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3984         esac
3985     done
3986 }
3987
3988 icl_flags(){
3989     msvc_common_flags "$@"
3990     for flag; do
3991         case $flag in
3992             # Despite what Intel's documentation says -Wall, which is supported
3993             # on Windows, does enable remarks so disable them here.
3994             -Wall)                echo $flag -Qdiag-disable:remark ;;
3995             -std=c99)             echo -Qstd=c99 ;;
3996             -flto)                echo -ipo ;;
3997         esac
3998     done
3999 }
4000
4001 icc_flags(){
4002     for flag; do
4003         case $flag in
4004             -flto)                echo -ipo ;;
4005             *)                    echo $flag ;;
4006         esac
4007     done
4008 }
4009
4010 pgi_flags(){
4011     for flag; do
4012         case $flag in
4013             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
4014             -fomit-frame-pointer) echo -Mnoframe ;;
4015             -g)                   echo -gopt ;;
4016             *)                    echo $flag ;;
4017         esac
4018     done
4019 }
4020
4021 suncc_flags(){
4022     for flag; do
4023         case $flag in
4024             -march=*|-mcpu=*)
4025                 case "${flag#*=}" in
4026                     native)                   echo -xtarget=native       ;;
4027                     v9|niagara)               echo -xarch=sparc          ;;
4028                     ultrasparc)               echo -xarch=sparcvis       ;;
4029                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4030                     i586|pentium)             echo -xchip=pentium        ;;
4031                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4032                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4033                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4034                     pentium4*)          echo -xtarget=pentium4           ;;
4035                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4036                     *-sse3)             echo -xarch=sse3                 ;;
4037                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4038                     bonnell)                   echo -xarch=ssse3         ;;
4039                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4040                     westmere)                  echo -xtarget=westmere    ;;
4041                     silvermont)                echo -xarch=sse4_2        ;;
4042                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4043                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4044                                                echo -xarch=avx           ;;
4045                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4046                     btver1)                    echo -xarch=amdsse4a      ;;
4047                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4048                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4049                     k8|opteron|athlon64|athlon-fx)
4050                                                echo -xarch=sse2a         ;;
4051                     athlon*)                   echo -xarch=pentium_proa  ;;
4052                 esac
4053                 ;;
4054             -std=c99)             echo -xc99              ;;
4055             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4056             -fPIC)                echo -KPIC -xcode=pic32 ;;
4057             -W*,*)                echo $flag              ;;
4058             -f*-*|-W*|-mimpure-text)                      ;;
4059             -shared)              echo -G                 ;;
4060             *)                    echo $flag              ;;
4061         esac
4062     done
4063 }
4064
4065 tms470_flags(){
4066     for flag; do
4067         case $flag in
4068             -march=*|-mcpu=*)
4069                 case "${flag#*=}" in
4070                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4071                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4072                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4073                     armv6*|arm11*)          echo -mv=6   ;;
4074                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4075                                             echo -mv=5e  ;;
4076                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4077                 esac
4078                 ;;
4079             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4080             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4081             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4082             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4083             -msoft-float)   echo --float_support=vfplib       ;;
4084             -O[0-3]|-mf=*)  echo $flag                        ;;
4085             -g)             echo -g -mn                       ;;
4086             -pds=*)         echo $flag                        ;;
4087             -D*|-I*)        echo $flag                        ;;
4088             --gcc|--abi=*)  echo $flag                        ;;
4089             -me)            echo $flag                        ;;
4090         esac
4091     done
4092 }
4093
4094 probe_cc(){
4095     pfx=$1
4096     _cc=$2
4097     first=$3
4098
4099     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4100     unset _ld_o _ldflags _ld_lib _ld_path
4101     unset _depflags _DEPCMD _DEPFLAGS
4102     _flags_filter=echo
4103
4104     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4105         true # no-op to avoid reading stdin in following checks
4106     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4107         _type=llvm_gcc
4108         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4109         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4110         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4111         _cflags_speed='-O3'
4112         _cflags_size='-Os'
4113     elif $_cc -v 2>&1 | grep -qi ^gcc; then