avcodec/decode: increase nb_bsfs after av_bsf_alloc in case alloc failed
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112   --disable-autodetect     disable automatically detected external libraries [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build (deprecated) [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Individual component options:
152   --disable-everything     disable all components listed below
153   --disable-encoder=NAME   disable encoder NAME
154   --enable-encoder=NAME    enable encoder NAME
155   --disable-encoders       disable all encoders
156   --disable-decoder=NAME   disable decoder NAME
157   --enable-decoder=NAME    enable decoder NAME
158   --disable-decoders       disable all decoders
159   --disable-hwaccel=NAME   disable hwaccel NAME
160   --enable-hwaccel=NAME    enable hwaccel NAME
161   --disable-hwaccels       disable all hwaccels
162   --disable-muxer=NAME     disable muxer NAME
163   --enable-muxer=NAME      enable muxer NAME
164   --disable-muxers         disable all muxers
165   --disable-demuxer=NAME   disable demuxer NAME
166   --enable-demuxer=NAME    enable demuxer NAME
167   --disable-demuxers       disable all demuxers
168   --enable-parser=NAME     enable parser NAME
169   --disable-parser=NAME    disable parser NAME
170   --disable-parsers        disable all parsers
171   --enable-bsf=NAME        enable bitstream filter NAME
172   --disable-bsf=NAME       disable bitstream filter NAME
173   --disable-bsfs           disable all bitstream filters
174   --enable-protocol=NAME   enable protocol NAME
175   --disable-protocol=NAME  disable protocol NAME
176   --disable-protocols      disable all protocols
177   --enable-indev=NAME      enable input device NAME
178   --disable-indev=NAME     disable input device NAME
179   --disable-indevs         disable input devices
180   --enable-outdev=NAME     enable output device NAME
181   --disable-outdev=NAME    disable output device NAME
182   --disable-outdevs        disable output devices
183   --disable-devices        disable all devices
184   --enable-filter=NAME     enable filter NAME
185   --disable-filter=NAME    disable filter NAME
186   --disable-filters        disable all filters
187
188 External library support:
189
190   Using any of the following switches will allow FFmpeg to link to the
191   corresponding external library. All the components depending on that library
192   will become enabled, if all their other dependencies are met and they are not
193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
194   libwavpack and allow the libwavpack encoder to be built, unless it is
195   specifically disabled with --disable-encoder=libwavpack.
196
197   Note that only the system libraries are auto-detected. All the other external
198   libraries must be explicitly enabled.
199
200   Also note that the following help text describes the purpose of the libraries
201   themselves, not all their features will necessarily be usable by FFmpeg.
202
203   --disable-alsa           disable ALSA support [autodetect]
204   --disable-appkit         disable Apple AppKit framework [autodetect]
205   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
206   --enable-avisynth        enable reading of AviSynth script files [no]
207   --disable-bzlib          disable bzlib [autodetect]
208   --disable-coreimage      disable Apple CoreImage framework [autodetect]
209   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
210   --enable-frei0r          enable frei0r video filtering [no]
211   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
212                            if openssl, librtmp or gmp is not used [no]
213   --enable-gmp             enable gmp, needed for rtmp(t)e support
214                            if openssl or librtmp is not used [no]
215   --enable-gnutls          enable gnutls, needed for https support
216                            if openssl, libtls or mbedtls is not used [no]
217   --disable-iconv          disable iconv [autodetect]
218   --enable-jni             enable JNI support [no]
219   --enable-ladspa          enable LADSPA audio filtering [no]
220   --enable-libaom          enable AV1 video encoding/decoding via libaom [no]
221   --enable-libaribb24      enable ARIB text and caption decoding via libaribb24 [no]
222   --enable-libass          enable libass subtitles rendering,
223                            needed for subtitles and ass filter [no]
224   --enable-libbluray       enable BluRay reading using libbluray [no]
225   --enable-libbs2b         enable bs2b DSP library [no]
226   --enable-libcaca         enable textual display using libcaca [no]
227   --enable-libcelt         enable CELT decoding via libcelt [no]
228   --enable-libcdio         enable audio CD grabbing with libcdio [no]
229   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
230   --enable-libdav1d        enable AV1 decoding via libdav1d [no]
231   --enable-libdavs2        enable AVS2 decoding via libdavs2 [no]
232   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
233                            and libraw1394 [no]
234   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
235   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
236   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
237   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
238   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
239   --enable-libglslang      enable GLSL->SPIRV compilation via libglslang [no]
240   --enable-libgme          enable Game Music Emu via libgme [no]
241   --enable-libgsm          enable GSM de/encoding via libgsm [no]
242   --enable-libiec61883     enable iec61883 via libiec61883 [no]
243   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
244   --enable-libjack         enable JACK audio sound server [no]
245   --enable-libklvanc       enable Kernel Labs VANC processing [no]
246   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
247   --enable-liblensfun      enable lensfun lens correction [no]
248   --enable-libmodplug      enable ModPlug via libmodplug [no]
249   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
250   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
251   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
252   --enable-libopencv       enable video filtering via libopencv [no]
253   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
254   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
255   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
256   --enable-libopus         enable Opus de/encoding via libopus [no]
257   --enable-libpulse        enable Pulseaudio input via libpulse [no]
258   --enable-librabbitmq     enable RabbitMQ library [no]
259   --enable-librav1e        enable AV1 encoding via rav1e [no]
260   --enable-librsvg         enable SVG rasterization via librsvg [no]
261   --enable-librubberband   enable rubberband needed for rubberband filter [no]
262   --enable-librtmp         enable RTMP[E] support via librtmp [no]
263   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
264   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
265   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
266   --enable-libsoxr         enable Include libsoxr resampling [no]
267   --enable-libspeex        enable Speex de/encoding via libspeex [no]
268   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
269   --enable-libssh          enable SFTP protocol via libssh [no]
270   --enable-libtensorflow   enable TensorFlow as a DNN module backend
271                            for DNN based filters like sr [no]
272   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
273   --enable-libtheora       enable Theora encoding via libtheora [no]
274   --enable-libtls          enable LibreSSL (via libtls), needed for https support
275                            if openssl, gnutls or mbedtls is not used [no]
276   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
277   --enable-libv4l2         enable libv4l2/v4l-utils [no]
278   --enable-libvidstab      enable video stabilization using vid.stab [no]
279   --enable-libvmaf         enable vmaf filter via libvmaf [no]
280   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
281   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
282                            native implementation exists [no]
283   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
284   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
285   --enable-libwebp         enable WebP encoding via libwebp [no]
286   --enable-libx264         enable H.264 encoding via x264 [no]
287   --enable-libx265         enable HEVC encoding via x265 [no]
288   --enable-libxavs         enable AVS encoding via xavs [no]
289   --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
290   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
291   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
292   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
293   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
294   --enable-libxvid         enable Xvid encoding via xvidcore,
295                            native MPEG-4/Xvid encoder exists [no]
296   --enable-libxml2         enable XML parsing using the C library libxml2, needed
297                            for dash demuxing support [no]
298   --enable-libzimg         enable z.lib, needed for zscale filter [no]
299   --enable-libzmq          enable message passing via libzmq [no]
300   --enable-libzvbi         enable teletext support via libzvbi [no]
301   --enable-lv2             enable LV2 audio filtering [no]
302   --disable-lzma           disable lzma [autodetect]
303   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
304   --enable-mbedtls         enable mbedTLS, needed for https support
305                            if openssl, gnutls or libtls is not used [no]
306   --enable-mediacodec      enable Android MediaCodec support [no]
307   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
308   --enable-openal          enable OpenAL 1.1 capture support [no]
309   --enable-opencl          enable OpenCL processing [no]
310   --enable-opengl          enable OpenGL rendering [no]
311   --enable-openssl         enable openssl, needed for https support
312                            if gnutls, libtls or mbedtls is not used [no]
313   --enable-pocketsphinx    enable PocketSphinx, needed for asr filter [no]
314   --disable-sndio          disable sndio support [autodetect]
315   --disable-schannel       disable SChannel SSP, needed for TLS support on
316                            Windows if openssl and gnutls are not used [autodetect]
317   --disable-sdl2           disable sdl2 [autodetect]
318   --disable-securetransport disable Secure Transport, needed for TLS support
319                            on OSX if openssl and gnutls are not used [autodetect]
320   --enable-vapoursynth     enable VapourSynth demuxer [no]
321   --enable-vulkan          enable Vulkan code [no]
322   --disable-xlib           disable xlib [autodetect]
323   --disable-zlib           disable zlib [autodetect]
324
325   The following libraries provide various hardware acceleration features:
326   --disable-amf            disable AMF video encoding code [autodetect]
327   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
328   --enable-cuda-nvcc       enable Nvidia CUDA compiler [no]
329   --disable-cuda-llvm      disable CUDA compilation using clang [autodetect]
330   --disable-cuvid          disable Nvidia CUVID support [autodetect]
331   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
332   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
333   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
334   --enable-libdrm          enable DRM code (Linux) [no]
335   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
336   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
337   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
338   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
339   --disable-nvenc          disable Nvidia video encoding code [autodetect]
340   --enable-omx             enable OpenMAX IL code [no]
341   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
342   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
343   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
344   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
345   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
346   --disable-videotoolbox   disable VideoToolbox code [autodetect]
347
348 Toolchain options:
349   --arch=ARCH              select architecture [$arch]
350   --cpu=CPU                select the minimum required CPU (affects
351                            instruction selection, may crash on older CPUs)
352   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
353   --progs-suffix=SUFFIX    program name suffix []
354   --enable-cross-compile   assume a cross-compiler is used
355   --sysroot=PATH           root of cross-build tree
356   --sysinclude=PATH        location of cross-build system headers
357   --target-os=OS           compiler targets OS [$target_os]
358   --target-exec=CMD        command to run executables on target
359   --target-path=DIR        path to view of build directory on target
360   --target-samples=DIR     path to samples directory on target
361   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
362   --toolchain=NAME         set tool defaults according to NAME
363                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
364                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
365                            valgrind-massif, valgrind-memcheck,
366                            msvc, icl, gcov, llvm-cov, hardened)
367   --nm=NM                  use nm tool NM [$nm_default]
368   --ar=AR                  use archive tool AR [$ar_default]
369   --as=AS                  use assembler AS [$as_default]
370   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
371   --strip=STRIP            use strip tool STRIP [$strip_default]
372   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
373   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
374   --cc=CC                  use C compiler CC [$cc_default]
375   --cxx=CXX                use C compiler CXX [$cxx_default]
376   --objcc=OCC              use ObjC compiler OCC [$cc_default]
377   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
378   --nvcc=NVCC              use Nvidia CUDA compiler NVCC or clang [$nvcc_default]
379   --ld=LD                  use linker LD [$ld_default]
380   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
381   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
382   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
383   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
384   --host-cc=HOSTCC         use host C compiler HOSTCC
385   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
386   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
387   --host-ld=HOSTLD         use host linker HOSTLD
388   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
389   --host-extralibs=HLIBS   use libs HLIBS when linking for host
390   --host-os=OS             compiler host OS [$target_os]
391   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
392   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
393   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
394   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
395   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
396   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
397   --extra-libs=ELIBS       add ELIBS [$ELIBS]
398   --extra-version=STRING   version string suffix []
399   --optflags=OPTFLAGS      override optimization-related compiler flags
400   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
401   --build-suffix=SUFFIX    library name suffix []
402   --enable-pic             build position-independent code
403   --enable-thumb           compile for Thumb instruction set
404   --enable-lto             use link-time optimization
405   --env="ENV=override"     override the environment variables
406
407 Advanced options (experts only):
408   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
409   --custom-allocator=NAME  use a supported custom allocator
410   --disable-symver         disable symbol versioning
411   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
412   --disable-safe-bitstream-reader
413                            disable buffer boundary checking in bitreaders
414                            (faster, but may crash)
415   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
416
417 Optimization options (experts only):
418   --disable-asm            disable all assembly optimizations
419   --disable-altivec        disable AltiVec optimizations
420   --disable-vsx            disable VSX optimizations
421   --disable-power8         disable POWER8 optimizations
422   --disable-amd3dnow       disable 3DNow! optimizations
423   --disable-amd3dnowext    disable 3DNow! extended optimizations
424   --disable-mmx            disable MMX optimizations
425   --disable-mmxext         disable MMXEXT optimizations
426   --disable-sse            disable SSE optimizations
427   --disable-sse2           disable SSE2 optimizations
428   --disable-sse3           disable SSE3 optimizations
429   --disable-ssse3          disable SSSE3 optimizations
430   --disable-sse4           disable SSE4 optimizations
431   --disable-sse42          disable SSE4.2 optimizations
432   --disable-avx            disable AVX optimizations
433   --disable-xop            disable XOP optimizations
434   --disable-fma3           disable FMA3 optimizations
435   --disable-fma4           disable FMA4 optimizations
436   --disable-avx2           disable AVX2 optimizations
437   --disable-avx512         disable AVX-512 optimizations
438   --disable-aesni          disable AESNI optimizations
439   --disable-armv5te        disable armv5te optimizations
440   --disable-armv6          disable armv6 optimizations
441   --disable-armv6t2        disable armv6t2 optimizations
442   --disable-vfp            disable VFP optimizations
443   --disable-neon           disable NEON optimizations
444   --disable-inline-asm     disable use of inline assembly
445   --disable-x86asm         disable use of standalone x86 assembly
446   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
447   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
448   --disable-msa            disable MSA optimizations
449   --disable-msa2           disable MSA2 optimizations
450   --disable-mipsfpu        disable floating point MIPS optimizations
451   --disable-mmi            disable Loongson SIMD optimizations
452   --disable-fast-unaligned consider unaligned accesses slow
453
454 Developer options (useful when working on FFmpeg itself):
455   --disable-debug          disable debugging symbols
456   --enable-debug=LEVEL     set the debug level [$debuglevel]
457   --disable-optimizations  disable compiler optimizations
458   --enable-extra-warnings  enable more compiler warnings
459   --disable-stripping      disable stripping of executables and shared libraries
460   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
461                            2 causes a slowdown at runtime.
462   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
463   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
464                            leaks and errors, using the specified valgrind binary.
465                            Cannot be combined with --target-exec
466   --enable-ftrapv          Trap arithmetic overflows
467   --samples=PATH           location of test samples for FATE, if not set use
468                            \$FATE_SAMPLES at make invocation time.
469   --enable-neon-clobber-test check NEON registers for clobbering (should be
470                            used only for debugging purposes)
471   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
472                            should be used only for debugging purposes)
473   --enable-random          randomly enable/disable components
474   --disable-random
475   --enable-random=LIST     randomly enable/disable specific components or
476   --disable-random=LIST    component groups. LIST is a comma-separated list
477                            of NAME[:PROB] entries where NAME is a component
478                            (group) and PROB the probability associated with
479                            NAME (default 0.5).
480   --random-seed=VALUE      seed value for --enable/disable-random
481   --disable-valgrind-backtrace do not print a backtrace under Valgrind
482                            (only applies to --disable-optimizations builds)
483   --enable-ossfuzz         Enable building fuzzer tool
484   --libfuzzer=PATH         path to libfuzzer
485   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
486                            in the name) of tests whose result is ignored
487   --enable-linux-perf      enable Linux Performance Monitor API
488   --disable-large-tests    disable tests that use a large amount of memory
489
490 NOTE: Object files are built at the place where configure is launched.
491 EOF
492   exit 0
493 }
494
495 if test -t 1 && which tput >/dev/null 2>&1; then
496     ncolors=$(tput colors)
497     if test -n "$ncolors" && test $ncolors -ge 8; then
498         bold_color=$(tput bold)
499         warn_color=$(tput setaf 3)
500         error_color=$(tput setaf 1)
501         reset_color=$(tput sgr0)
502     fi
503     # 72 used instead of 80 since that's the default of pr
504     ncols=$(tput cols)
505 fi
506 : ${ncols:=72}
507
508 log(){
509     echo "$@" >> $logfile
510 }
511
512 log_file(){
513     log BEGIN "$1"
514     log_file_i=1
515     while IFS= read -r log_file_line; do
516         printf '%5d\t%s\n' "$log_file_i" "$log_file_line"
517         log_file_i=$(($log_file_i+1))
518     done < "$1" >> "$logfile"
519     log END "$1"
520 }
521
522 warn(){
523     log "WARNING: $*"
524     WARNINGS="${WARNINGS}WARNING: $*\n"
525 }
526
527 die(){
528     log "$@"
529     echo "$error_color$bold_color$@$reset_color"
530     cat <<EOF
531
532 If you think configure made a mistake, make sure you are using the latest
533 version from Git.  If the latest version fails, report the problem to the
534 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
535 EOF
536     if disabled logging; then
537         cat <<EOF
538 Rerun configure with logging enabled (do not use --disable-logging), and
539 include the log this produces with your report.
540 EOF
541     else
542         cat <<EOF
543 Include the log file "$logfile" produced by configure as this will help
544 solve the problem.
545 EOF
546     fi
547     exit 1
548 }
549
550 # Avoid locale weirdness, besides we really just want to translate ASCII.
551 toupper(){
552     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
553 }
554
555 tolower(){
556     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
557 }
558
559 c_escape(){
560     echo "$*" | sed 's/["\\]/\\\0/g'
561 }
562
563 sh_quote(){
564     v=$(echo "$1" | sed "s/'/'\\\\''/g")
565     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
566     echo "$v"
567 }
568
569 cleanws(){
570     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
571 }
572
573 filter(){
574     pat=$1
575     shift
576     for v; do
577         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
578     done
579 }
580
581 filter_out(){
582     pat=$1
583     shift
584     for v; do
585         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
586     done
587 }
588
589 map(){
590     m=$1
591     shift
592     for v; do eval $m; done
593 }
594
595 add_suffix(){
596     suffix=$1
597     shift
598     for v; do echo ${v}${suffix}; done
599 }
600
601 remove_suffix(){
602     suffix=$1
603     shift
604     for v; do echo ${v%$suffix}; done
605 }
606
607 set_all(){
608     value=$1
609     shift
610     for var in $*; do
611         eval $var=$value
612     done
613 }
614
615 set_weak(){
616     value=$1
617     shift
618     for var; do
619         eval : \${$var:=$value}
620     done
621 }
622
623 sanitize_var_name(){
624     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
625 }
626
627 set_sanitized(){
628     var=$1
629     shift
630     eval $(sanitize_var_name "$var")='$*'
631 }
632
633 get_sanitized(){
634     eval echo \$$(sanitize_var_name "$1")
635 }
636
637 pushvar(){
638     for pvar in $*; do
639         eval level=\${${pvar}_level:=0}
640         eval ${pvar}_${level}="\$$pvar"
641         eval ${pvar}_level=$(($level+1))
642     done
643 }
644
645 popvar(){
646     for pvar in $*; do
647         eval level=\${${pvar}_level:-0}
648         test $level = 0 && continue
649         eval level=$(($level-1))
650         eval $pvar="\${${pvar}_${level}}"
651         eval ${pvar}_level=$level
652         eval unset ${pvar}_${level}
653     done
654 }
655
656 request(){
657     for var in $*; do
658         eval ${var}_requested=yes
659         eval $var=
660     done
661 }
662
663 warn_if_gets_disabled(){
664     for var in $*; do
665         WARN_IF_GETS_DISABLED_LIST="$WARN_IF_GETS_DISABLED_LIST $var"
666     done
667 }
668
669 enable(){
670     set_all yes $*
671 }
672
673 disable(){
674     set_all no $*
675 }
676
677 disable_with_reason(){
678     disable $1
679     eval "${1}_disable_reason=\"$2\""
680     if requested $1; then
681         die "ERROR: $1 requested, but $2"
682     fi
683 }
684
685 enable_weak(){
686     set_weak yes $*
687 }
688
689 disable_weak(){
690     set_weak no $*
691 }
692
693 enable_sanitized(){
694     for var; do
695         enable $(sanitize_var_name $var)
696     done
697 }
698
699 disable_sanitized(){
700     for var; do
701         disable $(sanitize_var_name $var)
702     done
703 }
704
705 do_enable_deep(){
706     for var; do
707         enabled $var && continue
708         set -- $var
709         eval enable_deep \$${var}_select
710         var=$1
711         eval enable_deep_weak \$${var}_suggest
712     done
713 }
714
715 enable_deep(){
716     do_enable_deep $*
717     enable $*
718 }
719
720 enable_deep_weak(){
721     for var; do
722         disabled $var && continue
723         set -- $var
724         do_enable_deep $var
725         var=$1
726         enable_weak $var
727     done
728 }
729
730 requested(){
731     test "${1#!}" = "$1" && op="=" || op="!="
732     eval test "x\$${1#!}_requested" $op "xyes"
733 }
734
735 enabled(){
736     test "${1#!}" = "$1" && op="=" || op="!="
737     eval test "x\$${1#!}" $op "xyes"
738 }
739
740 disabled(){
741     test "${1#!}" = "$1" && op="=" || op="!="
742     eval test "x\$${1#!}" $op "xno"
743 }
744
745 enabled_all(){
746     for opt; do
747         enabled $opt || return 1
748     done
749 }
750
751 disabled_all(){
752     for opt; do
753         disabled $opt || return 1
754     done
755 }
756
757 enabled_any(){
758     for opt; do
759         enabled $opt && return 0
760     done
761 }
762
763 disabled_any(){
764     for opt; do
765         disabled $opt && return 0
766     done
767     return 1
768 }
769
770 set_default(){
771     for opt; do
772         eval : \${$opt:=\$${opt}_default}
773     done
774 }
775
776 is_in(){
777     value=$1
778     shift
779     for var in $*; do
780         [ $var = $value ] && return 0
781     done
782     return 1
783 }
784
785 # The cfg loop is very hot (several thousands iterations), and in bash also
786 # potentialy quite slow. Try to abort the iterations early, preferably without
787 # calling functions. 70%+ of the time cfg is already done or without deps.
788 check_deps(){
789     for cfg; do
790         eval [ x\$${cfg}_checking = xdone ] && continue
791         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
792
793         eval "
794         dep_all=\$${cfg}_deps
795         dep_any=\$${cfg}_deps_any
796         dep_con=\$${cfg}_conflict
797         dep_sel=\$${cfg}_select
798         dep_sgs=\$${cfg}_suggest
799         dep_ifa=\$${cfg}_if
800         dep_ifn=\$${cfg}_if_any
801         "
802
803         # most of the time here $cfg has no deps - avoid costly no-op work
804         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
805             eval ${cfg}_checking=inprogress
806
807             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
808             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
809             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
810
811             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
812             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
813             enabled_all  $dep_all || { disable_with_reason $cfg "not all dependencies are satisfied: $dep_all"; }
814             enabled_any  $dep_any || { disable_with_reason $cfg "not any dependency is satisfied: $dep_any"; }
815             disabled_all $dep_con || { disable_with_reason $cfg "some conflicting dependencies are unsatisfied: $dep_con"; }
816             disabled_any $dep_sel && { disable_with_reason $cfg "some selected dependency is unsatisfied: $dep_sel"; }
817
818             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
819
820             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
821                 # filter out library deps, these do not belong in extralibs
822                 is_in $dep $LIBRARY_LIST && continue
823                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
824             done
825         fi
826
827         eval ${cfg}_checking=done
828     done
829 }
830
831 print_config(){
832     pfx=$1
833     files=$2
834     shift 2
835     map 'eval echo "$v \${$v:-no}"' "$@" |
836     awk "BEGIN { split(\"$files\", files) }
837         {
838             c = \"$pfx\" toupper(\$1);
839             v = \$2;
840             sub(/yes/, 1, v);
841             sub(/no/,  0, v);
842             for (f in files) {
843                 file = files[f];
844                 if (file ~ /\\.h\$/) {
845                     printf(\"#define %s %d\\n\", c, v) >>file;
846                 } else if (file ~ /\\.asm\$/) {
847                     printf(\"%%define %s %d\\n\", c, v) >>file;
848                 } else if (file ~ /\\.mak\$/) {
849                     n = -v ? \"\" : \"!\";
850                     printf(\"%s%s=yes\\n\", n, c) >>file;
851                 } else if (file ~ /\\.texi\$/) {
852                     pre = -v ? \"\" : \"@c \";
853                     yesno = \$2;
854                     c2 = tolower(c);
855                     gsub(/_/, \"-\", c2);
856                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
857                 }
858             }
859         }"
860 }
861
862 print_enabled(){
863     suf=$1
864     shift
865     for v; do
866         enabled $v && printf "%s\n" ${v%$suf}
867     done
868 }
869
870 append(){
871     var=$1
872     shift
873     eval "$var=\"\$$var $*\""
874 }
875
876 prepend(){
877     var=$1
878     shift
879     eval "$var=\"$* \$$var\""
880 }
881
882 reverse () {
883     eval '
884         reverse_out=
885         for v in $'$1'; do
886             reverse_out="$v $reverse_out"
887         done
888         '$1'=$reverse_out
889     '
890 }
891
892 # keeps the last occurence of each non-unique item
893 unique(){
894     unique_out=
895     eval unique_in=\$$1
896     reverse unique_in
897     for v in $unique_in; do
898         # " $unique_out" +space such that every item is surrounded with spaces
899         case " $unique_out" in *" $v "*) continue; esac  # already in list
900         unique_out="$unique_out$v "
901     done
902     reverse unique_out
903     eval $1=\$unique_out
904 }
905
906 resolve(){
907     resolve_out=
908     eval resolve_in=\$$1
909     for v in $resolve_in; do
910         eval 'resolve_out="$resolve_out$'$v' "'
911     done
912     eval $1=\$resolve_out
913 }
914
915 add_cppflags(){
916     append CPPFLAGS "$@"
917 }
918
919 add_cflags(){
920     append CFLAGS $($cflags_filter "$@")
921 }
922
923 add_cflags_headers(){
924     append CFLAGS_HEADERS $($cflags_filter "$@")
925 }
926
927 add_cxxflags(){
928     append CXXFLAGS $($cflags_filter "$@")
929 }
930
931 add_objcflags(){
932     append OBJCFLAGS $($objcflags_filter "$@")
933 }
934
935 add_asflags(){
936     append ASFLAGS $($asflags_filter "$@")
937 }
938
939 add_ldflags(){
940     append LDFLAGS $($ldflags_filter "$@")
941 }
942
943 add_ldexeflags(){
944     append LDEXEFLAGS $($ldflags_filter "$@")
945 }
946
947 add_ldsoflags(){
948     append LDSOFLAGS $($ldflags_filter "$@")
949 }
950
951 add_extralibs(){
952     prepend extralibs $($ldflags_filter "$@")
953 }
954
955 add_stripflags(){
956     append ASMSTRIPFLAGS "$@"
957 }
958
959 add_host_cppflags(){
960     append host_cppflags "$@"
961 }
962
963 add_host_cflags(){
964     append host_cflags $($host_cflags_filter "$@")
965 }
966
967 add_host_ldflags(){
968     append host_ldflags $($host_ldflags_filter "$@")
969 }
970
971 add_compat(){
972     append compat_objs $1
973     shift
974     map 'add_cppflags -D$v' "$@"
975 }
976
977 test_cmd(){
978     log "$@"
979     "$@" >> $logfile 2>&1
980 }
981
982 test_stat(){
983     log test_stat "$@"
984     stat "$1" >> $logfile 2>&1
985 }
986
987 cc_e(){
988     eval printf '%s\\n' $CC_E
989 }
990
991 cc_o(){
992     eval printf '%s\\n' $CC_O
993 }
994
995 as_o(){
996     eval printf '%s\\n' $AS_O
997 }
998
999 x86asm_o(){
1000     eval printf '%s\\n' $X86ASM_O
1001 }
1002
1003 ld_o(){
1004     eval printf '%s\\n' $LD_O
1005 }
1006
1007 hostcc_e(){
1008     eval printf '%s\\n' $HOSTCC_E
1009 }
1010
1011 hostcc_o(){
1012     eval printf '%s\\n' $HOSTCC_O
1013 }
1014
1015 nvcc_o(){
1016     eval printf '%s\\n' $NVCC_O
1017 }
1018
1019 test_cc(){
1020     log test_cc "$@"
1021     cat > $TMPC
1022     log_file $TMPC
1023     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
1024 }
1025
1026 test_cxx(){
1027     log test_cxx "$@"
1028     cat > $TMPCPP
1029     log_file $TMPCPP
1030     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
1031 }
1032
1033 test_objcc(){
1034     log test_objcc "$@"
1035     cat > $TMPM
1036     log_file $TMPM
1037     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1038 }
1039
1040 test_nvcc(){
1041     log test_nvcc "$@"
1042     cat > $TMPCU
1043     log_file $TMPCU
1044     tmpcu_=$TMPCU
1045     tmpo_=$TMPO
1046     [ -x "$(command -v cygpath)" ] && tmpcu_=$(cygpath -m $tmpcu_) && tmpo_=$(cygpath -m $tmpo_)
1047     test_cmd $nvcc $nvccflags "$@" $NVCC_C $(nvcc_o $tmpo_) $tmpcu_
1048 }
1049
1050 check_nvcc() {
1051     log check_nvcc "$@"
1052     name=$1
1053     shift 1
1054     disabled $name && return
1055     disable $name
1056     test_nvcc "$@" <<EOF && enable $name
1057 extern "C" {
1058     __global__ void hello(unsigned char *data) {}
1059 }
1060 EOF
1061 }
1062
1063 test_cpp(){
1064     log test_cpp "$@"
1065     cat > $TMPC
1066     log_file $TMPC
1067     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1068 }
1069
1070 test_as(){
1071     log test_as "$@"
1072     cat > $TMPS
1073     log_file $TMPS
1074     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1075 }
1076
1077 test_x86asm(){
1078     log test_x86asm "$@"
1079     echo "$1" > $TMPASM
1080     log_file $TMPASM
1081     shift
1082     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1083 }
1084
1085 check_cmd(){
1086     log check_cmd "$@"
1087     cmd=$1
1088     disabled $cmd && return
1089     disable $cmd
1090     test_cmd $@ && enable $cmd
1091 }
1092
1093 check_as(){
1094     log check_as "$@"
1095     name=$1
1096     code=$2
1097     shift 2
1098     disable $name
1099     test_as $@ <<EOF && enable $name
1100 $code
1101 EOF
1102 }
1103
1104 check_inline_asm(){
1105     log check_inline_asm "$@"
1106     name="$1"
1107     code="$2"
1108     shift 2
1109     disable $name
1110     test_cc "$@" <<EOF && enable $name
1111 void foo(void){ __asm__ volatile($code); }
1112 EOF
1113 }
1114
1115 check_inline_asm_flags(){
1116     log check_inline_asm_flags "$@"
1117     name="$1"
1118     code="$2"
1119     flags=''
1120     shift 2
1121     while [ "$1" != "" ]; do
1122       append flags $1
1123       shift
1124     done;
1125     disable $name
1126     cat > $TMPC <<EOF
1127 void foo(void){ __asm__ volatile($code); }
1128 EOF
1129     log_file $TMPC
1130     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1131     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1132 }
1133
1134 check_insn(){
1135     log check_insn "$@"
1136     check_inline_asm ${1}_inline "\"$2\""
1137     check_as ${1}_external "$2"
1138 }
1139
1140 check_x86asm(){
1141     log check_x86asm "$@"
1142     name=$1
1143     shift
1144     disable $name
1145     test_x86asm "$@" && enable $name
1146 }
1147
1148 test_ld(){
1149     log test_ld "$@"
1150     type=$1
1151     shift 1
1152     flags=$(filter_out '-l*|*.so' $@)
1153     libs=$(filter '-l*|*.so' $@)
1154     test_$type $($cflags_filter $flags) || return
1155     flags=$($ldflags_filter $flags)
1156     libs=$($ldflags_filter $libs)
1157     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1158 }
1159
1160 check_ld(){
1161     log check_ld "$@"
1162     type=$1
1163     name=$2
1164     shift 2
1165     disable $name
1166     test_ld $type $@ && enable $name
1167 }
1168
1169 print_include(){
1170     hdr=$1
1171     test "${hdr%.h}" = "${hdr}" &&
1172         echo "#include $hdr"    ||
1173         echo "#include <$hdr>"
1174 }
1175
1176 test_code(){
1177     log test_code "$@"
1178     check=$1
1179     headers=$2
1180     code=$3
1181     shift 3
1182     {
1183         for hdr in $headers; do
1184             print_include $hdr
1185         done
1186         echo "int main(void) { $code; return 0; }"
1187     } | test_$check "$@"
1188 }
1189
1190 check_cppflags(){
1191     log check_cppflags "$@"
1192     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1193 #include <stdlib.h>
1194 EOF
1195 }
1196
1197 test_cflags(){
1198     log test_cflags "$@"
1199     set -- $($cflags_filter "$@")
1200     test_cc "$@" <<EOF
1201 int x;
1202 EOF
1203 }
1204
1205 check_cflags(){
1206     log check_cflags "$@"
1207     test_cflags "$@" && add_cflags "$@"
1208 }
1209
1210 check_cxxflags(){
1211     log check_cxxflags "$@"
1212     set -- $($cflags_filter "$@")
1213     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1214 int x;
1215 EOF
1216 }
1217
1218 test_objcflags(){
1219     log test_objcflags "$@"
1220     set -- $($objcflags_filter "$@")
1221     test_objcc "$@" <<EOF
1222 int x;
1223 EOF
1224 }
1225
1226 check_objcflags(){
1227     log check_objcflags "$@"
1228     test_objcflags "$@" && add_objcflags "$@"
1229 }
1230
1231 test_ldflags(){
1232     log test_ldflags "$@"
1233     set -- $($ldflags_filter "$@")
1234     test_ld "cc" "$@" <<EOF
1235 int main(void){ return 0; }
1236 EOF
1237 }
1238
1239 check_ldflags(){
1240     log check_ldflags "$@"
1241     test_ldflags "$@" && add_ldflags "$@"
1242 }
1243
1244 test_stripflags(){
1245     log test_stripflags "$@"
1246     # call test_cc to get a fresh TMPO
1247     test_cc <<EOF
1248 int main(void) { return 0; }
1249 EOF
1250     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1251 }
1252
1253 check_stripflags(){
1254     log check_stripflags "$@"
1255     test_stripflags "$@" && add_stripflags "$@"
1256 }
1257
1258 check_headers(){
1259     log check_headers "$@"
1260     headers=$1
1261     shift
1262     disable_sanitized $headers
1263     {
1264         for hdr in $headers; do
1265             print_include $hdr
1266         done
1267         echo "int x;"
1268     } | test_cpp "$@" && enable_sanitized $headers
1269 }
1270
1271 check_header_objcc(){
1272     log check_header_objcc "$@"
1273     rm -f -- "$TMPO"
1274     header=$1
1275     shift
1276     disable_sanitized $header
1277     {
1278        echo "#include <$header>"
1279        echo "int main(void) { return 0; }"
1280     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1281 }
1282
1283 check_apple_framework(){
1284     log check_apple_framework "$@"
1285     framework="$1"
1286     name="$(tolower $framework)"
1287     header="${framework}/${framework}.h"
1288     disable $name
1289     check_header_objcc $header &&
1290         enable $name && eval ${name}_extralibs='"-framework $framework"'
1291 }
1292
1293 check_func(){
1294     log check_func "$@"
1295     func=$1
1296     shift
1297     disable $func
1298     test_ld "cc" "$@" <<EOF && enable $func
1299 extern int $func();
1300 int main(void){ $func(); }
1301 EOF
1302 }
1303
1304 check_complexfunc(){
1305     log check_complexfunc "$@"
1306     func=$1
1307     narg=$2
1308     shift 2
1309     test $narg = 2 && args="f, g" || args="f * I"
1310     disable $func
1311     test_ld "cc" "$@" <<EOF && enable $func
1312 #include <complex.h>
1313 #include <math.h>
1314 float foo(complex float f, complex float g) { return $func($args); }
1315 int main(void){ return (int) foo; }
1316 EOF
1317 }
1318
1319 check_mathfunc(){
1320     log check_mathfunc "$@"
1321     func=$1
1322     narg=$2
1323     shift 2
1324     test $narg = 2 && args="f, g" || args="f"
1325     disable $func
1326     test_ld "cc" "$@" <<EOF && enable $func
1327 #include <math.h>
1328 float foo(float f, float g) { return $func($args); }
1329 int main(void){ return (int) foo; }
1330 EOF
1331 }
1332
1333 check_func_headers(){
1334     log check_func_headers "$@"
1335     headers=$1
1336     funcs=$2
1337     shift 2
1338     {
1339         for hdr in $headers; do
1340             print_include $hdr
1341         done
1342         echo "#include <stdint.h>"
1343         for func in $funcs; do
1344             echo "long check_$func(void) { return (long) $func; }"
1345         done
1346         echo "int main(void) { int ret = 0;"
1347         # LTO could optimize out the test functions without this
1348         for func in $funcs; do
1349             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1350         done
1351         echo "return ret; }"
1352     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1353 }
1354
1355 check_class_headers_cpp(){
1356     log check_class_headers_cpp "$@"
1357     headers=$1
1358     classes=$2
1359     shift 2
1360     {
1361         for hdr in $headers; do
1362             echo "#include <$hdr>"
1363         done
1364         echo "int main(void) { "
1365         i=1
1366         for class in $classes; do
1367             echo "$class obj$i;"
1368             i=$(expr $i + 1)
1369         done
1370         echo "return 0; }"
1371     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1372 }
1373
1374 test_cpp_condition(){
1375     log test_cpp_condition "$@"
1376     header=$1
1377     condition=$2
1378     shift 2
1379     test_cpp "$@" <<EOF
1380 #include <$header>
1381 #if !($condition)
1382 #error "unsatisfied condition: $condition"
1383 #endif
1384 EOF
1385 }
1386
1387 check_cpp_condition(){
1388     log check_cpp_condition "$@"
1389     name=$1
1390     shift 1
1391     disable $name
1392     test_cpp_condition "$@" && enable $name
1393 }
1394
1395 test_cflags_cc(){
1396     log test_cflags_cc "$@"
1397     flags=$1
1398     header=$2
1399     condition=$3
1400     shift 3
1401     set -- $($cflags_filter "$flags")
1402     test_cc "$@" <<EOF
1403 #include <$header>
1404 #if !($condition)
1405 #error "unsatisfied condition: $condition"
1406 #endif
1407 EOF
1408 }
1409
1410 check_lib(){
1411     log check_lib "$@"
1412     name="$1"
1413     headers="$2"
1414     funcs="$3"
1415     shift 3
1416     disable $name
1417     check_func_headers "$headers" "$funcs" "$@" &&
1418         enable $name && eval ${name}_extralibs="\$@"
1419 }
1420
1421 check_lib_cpp(){
1422     log check_lib_cpp "$@"
1423     name="$1"
1424     headers="$2"
1425     classes="$3"
1426     shift 3
1427     disable $name
1428     check_class_headers_cpp "$headers" "$classes" "$@" &&
1429         enable $name && eval ${name}_extralibs="\$@"
1430 }
1431
1432 test_pkg_config(){
1433     log test_pkg_config "$@"
1434     name="$1"
1435     pkg_version="$2"
1436     pkg="${2%% *}"
1437     headers="$3"
1438     funcs="$4"
1439     shift 4
1440     disable $name
1441     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1442     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1443     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1444     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1445         enable $name &&
1446         set_sanitized "${name}_cflags"    $pkg_cflags &&
1447         set_sanitized "${name}_extralibs" $pkg_libs
1448 }
1449
1450 check_pkg_config(){
1451     log check_pkg_config "$@"
1452     name="$1"
1453     test_pkg_config "$@" &&
1454         eval add_cflags \$${name}_cflags
1455 }
1456
1457 test_exec(){
1458     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1459 }
1460
1461 check_exec_crash(){
1462     log check_exec_crash "$@"
1463     code=$(cat)
1464
1465     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1466     # are safe but may not be available everywhere.  Thus we use
1467     # raise(SIGTERM) instead.  The check is run in a subshell so we
1468     # can redirect the "Terminated" message from the shell.  SIGBUS
1469     # is not defined by standard C so it is used conditionally.
1470
1471     (test_exec "$@") >> $logfile 2>&1 <<EOF
1472 #include <signal.h>
1473 static void sighandler(int sig){
1474     raise(SIGTERM);
1475 }
1476 int foo(void){
1477     $code
1478 }
1479 int (*func_ptr)(void) = foo;
1480 int main(void){
1481     signal(SIGILL, sighandler);
1482     signal(SIGFPE, sighandler);
1483     signal(SIGSEGV, sighandler);
1484 #ifdef SIGBUS
1485     signal(SIGBUS, sighandler);
1486 #endif
1487     return func_ptr();
1488 }
1489 EOF
1490 }
1491
1492 check_type(){
1493     log check_type "$@"
1494     headers=$1
1495     type=$2
1496     shift 2
1497     disable_sanitized "$type"
1498     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1499 }
1500
1501 check_struct(){
1502     log check_struct "$@"
1503     headers=$1
1504     struct=$2
1505     member=$3
1506     shift 3
1507     disable_sanitized "${struct}_${member}"
1508     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1509         enable_sanitized "${struct}_${member}"
1510 }
1511
1512 check_builtin(){
1513     log check_builtin "$@"
1514     name=$1
1515     headers=$2
1516     builtin=$3
1517     shift 3
1518     disable "$name"
1519     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1520 }
1521
1522 check_compile_assert(){
1523     log check_compile_assert "$@"
1524     name=$1
1525     headers=$2
1526     condition=$3
1527     shift 3
1528     disable "$name"
1529     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1530 }
1531
1532 check_cc(){
1533     log check_cc "$@"
1534     name=$1
1535     shift
1536     disable "$name"
1537     test_code cc "$@" && enable "$name"
1538 }
1539
1540 require(){
1541     log require "$@"
1542     name_version="$1"
1543     name="${1%% *}"
1544     shift
1545     check_lib $name "$@" || die "ERROR: $name_version not found"
1546 }
1547
1548 require_cc(){
1549     log require_cc "$@"
1550     name="$1"
1551     check_cc "$@" || die "ERROR: $name failed"
1552 }
1553
1554 require_cpp(){
1555     log require_cpp "$@"
1556     name_version="$1"
1557     name="${1%% *}"
1558     shift
1559     check_lib_cpp "$name" "$@" || die "ERROR: $name_version not found"
1560 }
1561
1562 require_headers(){
1563     log require_headers "$@"
1564     headers="$1"
1565     check_headers "$@" || die "ERROR: $headers not found"
1566 }
1567
1568 require_cpp_condition(){
1569     log require_cpp_condition "$@"
1570     condition="$3"
1571     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1572 }
1573
1574 require_pkg_config(){
1575     log require_pkg_config "$@"
1576     pkg_version="$2"
1577     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1578 }
1579
1580 test_host_cc(){
1581     log test_host_cc "$@"
1582     cat > $TMPC
1583     log_file $TMPC
1584     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1585 }
1586
1587 test_host_cpp(){
1588     log test_host_cpp "$@"
1589     cat > $TMPC
1590     log_file $TMPC
1591     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1592 }
1593
1594 check_host_cppflags(){
1595     log check_host_cppflags "$@"
1596     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1597 #include <stdlib.h>
1598 EOF
1599 }
1600
1601 check_host_cflags(){
1602     log check_host_cflags "$@"
1603     set -- $($host_cflags_filter "$@")
1604     test_host_cc "$@" <<EOF && append host_cflags "$@"
1605 int x;
1606 EOF
1607 }
1608
1609 test_host_cpp_condition(){
1610     log test_host_cpp_condition "$@"
1611     header=$1
1612     condition=$2
1613     shift 2
1614     test_host_cpp "$@" <<EOF
1615 #include <$header>
1616 #if !($condition)
1617 #error "unsatisfied condition: $condition"
1618 #endif
1619 EOF
1620 }
1621
1622 check_host_cpp_condition(){
1623     log check_host_cpp_condition "$@"
1624     name=$1
1625     shift 1
1626     disable $name
1627     test_host_cpp_condition "$@" && enable $name
1628 }
1629
1630 cp_if_changed(){
1631     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1632     mkdir -p "$(dirname $2)"
1633     cp -f "$1" "$2"
1634 }
1635
1636 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1637 # system-dependent things.
1638
1639 AVCODEC_COMPONENTS="
1640     bsfs
1641     decoders
1642     encoders
1643     hwaccels
1644     parsers
1645 "
1646
1647 AVDEVICE_COMPONENTS="
1648     indevs
1649     outdevs
1650 "
1651
1652 AVFILTER_COMPONENTS="
1653     filters
1654 "
1655
1656 AVFORMAT_COMPONENTS="
1657     demuxers
1658     muxers
1659     protocols
1660 "
1661
1662 COMPONENT_LIST="
1663     $AVCODEC_COMPONENTS
1664     $AVDEVICE_COMPONENTS
1665     $AVFILTER_COMPONENTS
1666     $AVFORMAT_COMPONENTS
1667 "
1668
1669 EXAMPLE_LIST="
1670     avio_list_dir_example
1671     avio_reading_example
1672     decode_audio_example
1673     decode_video_example
1674     demuxing_decoding_example
1675     encode_audio_example
1676     encode_video_example
1677     extract_mvs_example
1678     filter_audio_example
1679     filtering_audio_example
1680     filtering_video_example
1681     http_multiclient_example
1682     hw_decode_example
1683     metadata_example
1684     muxing_example
1685     qsvdec_example
1686     remuxing_example
1687     resampling_audio_example
1688     scaling_video_example
1689     transcode_aac_example
1690     transcoding_example
1691     vaapi_encode_example
1692     vaapi_transcode_example
1693 "
1694
1695 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1696     alsa
1697     appkit
1698     avfoundation
1699     bzlib
1700     coreimage
1701     iconv
1702     libxcb
1703     libxcb_shm
1704     libxcb_shape
1705     libxcb_xfixes
1706     lzma
1707     schannel
1708     sdl2
1709     securetransport
1710     sndio
1711     xlib
1712     zlib
1713 "
1714
1715 EXTERNAL_LIBRARY_GPL_LIST="
1716     avisynth
1717     frei0r
1718     libcdio
1719     libdavs2
1720     librubberband
1721     libvidstab
1722     libx264
1723     libx265
1724     libxavs
1725     libxavs2
1726     libxvid
1727 "
1728
1729 EXTERNAL_LIBRARY_NONFREE_LIST="
1730     decklink
1731     libfdk_aac
1732     openssl
1733     libtls
1734 "
1735
1736 EXTERNAL_LIBRARY_VERSION3_LIST="
1737     gmp
1738     libaribb24
1739     liblensfun
1740     libopencore_amrnb
1741     libopencore_amrwb
1742     libvmaf
1743     libvo_amrwbenc
1744     mbedtls
1745     rkmpp
1746 "
1747
1748 EXTERNAL_LIBRARY_GPLV3_LIST="
1749     libsmbclient
1750 "
1751
1752 EXTERNAL_LIBRARY_LIST="
1753     $EXTERNAL_LIBRARY_GPL_LIST
1754     $EXTERNAL_LIBRARY_NONFREE_LIST
1755     $EXTERNAL_LIBRARY_VERSION3_LIST
1756     $EXTERNAL_LIBRARY_GPLV3_LIST
1757     chromaprint
1758     gcrypt
1759     gnutls
1760     jni
1761     ladspa
1762     libaom
1763     libass
1764     libbluray
1765     libbs2b
1766     libcaca
1767     libcelt
1768     libcodec2
1769     libdav1d
1770     libdc1394
1771     libdrm
1772     libflite
1773     libfontconfig
1774     libfreetype
1775     libfribidi
1776     libglslang
1777     libgme
1778     libgsm
1779     libiec61883
1780     libilbc
1781     libjack
1782     libklvanc
1783     libkvazaar
1784     libmodplug
1785     libmp3lame
1786     libmysofa
1787     libopencv
1788     libopenh264
1789     libopenjpeg
1790     libopenmpt
1791     libopus
1792     libpulse
1793     librabbitmq
1794     librav1e
1795     librsvg
1796     librtmp
1797     libshine
1798     libsmbclient
1799     libsnappy
1800     libsoxr
1801     libspeex
1802     libsrt
1803     libssh
1804     libtensorflow
1805     libtesseract
1806     libtheora
1807     libtwolame
1808     libv4l2
1809     libvorbis
1810     libvpx
1811     libwavpack
1812     libwebp
1813     libxml2
1814     libzimg
1815     libzmq
1816     libzvbi
1817     lv2
1818     mediacodec
1819     openal
1820     opengl
1821     pocketsphinx
1822     vapoursynth
1823 "
1824
1825 HWACCEL_AUTODETECT_LIBRARY_LIST="
1826     amf
1827     audiotoolbox
1828     crystalhd
1829     cuda
1830     cuda_llvm
1831     cuvid
1832     d3d11va
1833     dxva2
1834     ffnvcodec
1835     nvdec
1836     nvenc
1837     vaapi
1838     vdpau
1839     videotoolbox
1840     v4l2_m2m
1841     xvmc
1842 "
1843
1844 # catchall list of things that require external libs to link
1845 EXTRALIBS_LIST="
1846     cpu_init
1847     cws2fws
1848 "
1849
1850 HWACCEL_LIBRARY_NONFREE_LIST="
1851     cuda_nvcc
1852     cuda_sdk
1853     libnpp
1854 "
1855
1856 HWACCEL_LIBRARY_LIST="
1857     $HWACCEL_LIBRARY_NONFREE_LIST
1858     libmfx
1859     mmal
1860     omx
1861     opencl
1862     vulkan
1863 "
1864
1865 DOCUMENT_LIST="
1866     doc
1867     htmlpages
1868     manpages
1869     podpages
1870     txtpages
1871 "
1872
1873 FEATURE_LIST="
1874     ftrapv
1875     gray
1876     hardcoded_tables
1877     omx_rpi
1878     runtime_cpudetect
1879     safe_bitstream_reader
1880     shared
1881     small
1882     static
1883     swscale_alpha
1884 "
1885
1886 # this list should be kept in linking order
1887 LIBRARY_LIST="
1888     avdevice
1889     avfilter
1890     swscale
1891     postproc
1892     avformat
1893     avcodec
1894     swresample
1895     avresample
1896     avutil
1897 "
1898
1899 LICENSE_LIST="
1900     gpl
1901     nonfree
1902     version3
1903 "
1904
1905 PROGRAM_LIST="
1906     ffplay
1907     ffprobe
1908     ffmpeg
1909 "
1910
1911 SUBSYSTEM_LIST="
1912     dct
1913     dwt
1914     error_resilience
1915     faan
1916     fast_unaligned
1917     fft
1918     lsp
1919     lzo
1920     mdct
1921     pixelutils
1922     network
1923     rdft
1924 "
1925
1926 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1927 CONFIG_LIST="
1928     $DOCUMENT_LIST
1929     $EXAMPLE_LIST
1930     $EXTERNAL_LIBRARY_LIST
1931     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1932     $HWACCEL_LIBRARY_LIST
1933     $HWACCEL_AUTODETECT_LIBRARY_LIST
1934     $FEATURE_LIST
1935     $LICENSE_LIST
1936     $LIBRARY_LIST
1937     $PROGRAM_LIST
1938     $SUBSYSTEM_LIST
1939     autodetect
1940     fontconfig
1941     large_tests
1942     linux_perf
1943     memory_poisoning
1944     neon_clobber_test
1945     ossfuzz
1946     pic
1947     thumb
1948     valgrind_backtrace
1949     xmm_clobber_test
1950     $COMPONENT_LIST
1951 "
1952
1953 THREADS_LIST="
1954     pthreads
1955     os2threads
1956     w32threads
1957 "
1958
1959 ATOMICS_LIST="
1960     atomics_gcc
1961     atomics_suncc
1962     atomics_win32
1963 "
1964
1965 AUTODETECT_LIBS="
1966     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1967     $HWACCEL_AUTODETECT_LIBRARY_LIST
1968     $THREADS_LIST
1969 "
1970
1971 ARCH_LIST="
1972     aarch64
1973     alpha
1974     arm
1975     avr32
1976     avr32_ap
1977     avr32_uc
1978     bfin
1979     ia64
1980     m68k
1981     mips
1982     mips64
1983     parisc
1984     ppc
1985     ppc64
1986     s390
1987     sh4
1988     sparc
1989     sparc64
1990     tilegx
1991     tilepro
1992     tomi
1993     x86
1994     x86_32
1995     x86_64
1996 "
1997
1998 ARCH_EXT_LIST_ARM="
1999     armv5te
2000     armv6
2001     armv6t2
2002     armv8
2003     neon
2004     vfp
2005     vfpv3
2006     setend
2007 "
2008
2009 ARCH_EXT_LIST_MIPS="
2010     mipsfpu
2011     mips32r2
2012     mips32r5
2013     mips64r2
2014     mips32r6
2015     mips64r6
2016     mipsdsp
2017     mipsdspr2
2018     msa
2019     msa2
2020 "
2021
2022 ARCH_EXT_LIST_LOONGSON="
2023     loongson2
2024     loongson3
2025     mmi
2026 "
2027
2028 ARCH_EXT_LIST_X86_SIMD="
2029     aesni
2030     amd3dnow
2031     amd3dnowext
2032     avx
2033     avx2
2034     avx512
2035     fma3
2036     fma4
2037     mmx
2038     mmxext
2039     sse
2040     sse2
2041     sse3
2042     sse4
2043     sse42
2044     ssse3
2045     xop
2046 "
2047
2048 ARCH_EXT_LIST_PPC="
2049     altivec
2050     dcbzl
2051     ldbrx
2052     power8
2053     ppc4xx
2054     vsx
2055 "
2056
2057 ARCH_EXT_LIST_X86="
2058     $ARCH_EXT_LIST_X86_SIMD
2059     cpunop
2060     i686
2061 "
2062
2063 ARCH_EXT_LIST="
2064     $ARCH_EXT_LIST_ARM
2065     $ARCH_EXT_LIST_PPC
2066     $ARCH_EXT_LIST_X86
2067     $ARCH_EXT_LIST_MIPS
2068     $ARCH_EXT_LIST_LOONGSON
2069 "
2070
2071 ARCH_FEATURES="
2072     aligned_stack
2073     fast_64bit
2074     fast_clz
2075     fast_cmov
2076     local_aligned
2077     simd_align_16
2078     simd_align_32
2079     simd_align_64
2080 "
2081
2082 BUILTIN_LIST="
2083     atomic_cas_ptr
2084     machine_rw_barrier
2085     MemoryBarrier
2086     mm_empty
2087     rdtsc
2088     sem_timedwait
2089     sync_val_compare_and_swap
2090 "
2091 HAVE_LIST_CMDLINE="
2092     inline_asm
2093     symver
2094     x86asm
2095 "
2096
2097 HAVE_LIST_PUB="
2098     bigendian
2099     fast_unaligned
2100 "
2101
2102 HEADERS_LIST="
2103     arpa_inet_h
2104     asm_types_h
2105     cdio_paranoia_h
2106     cdio_paranoia_paranoia_h
2107     cuda_h
2108     dispatch_dispatch_h
2109     dev_bktr_ioctl_bt848_h
2110     dev_bktr_ioctl_meteor_h
2111     dev_ic_bt8xx_h
2112     dev_video_bktr_ioctl_bt848_h
2113     dev_video_meteor_ioctl_meteor_h
2114     direct_h
2115     dirent_h
2116     dxgidebug_h
2117     dxva_h
2118     ES2_gl_h
2119     gsm_h
2120     io_h
2121     linux_perf_event_h
2122     machine_ioctl_bt848_h
2123     machine_ioctl_meteor_h
2124     malloc_h
2125     opencv2_core_core_c_h
2126     OpenGL_gl3_h
2127     poll_h
2128     sys_param_h
2129     sys_resource_h
2130     sys_select_h
2131     sys_soundcard_h
2132     sys_time_h
2133     sys_un_h
2134     sys_videoio_h
2135     termios_h
2136     udplite_h
2137     unistd_h
2138     valgrind_valgrind_h
2139     windows_h
2140     winsock2_h
2141 "
2142
2143 INTRINSICS_LIST="
2144     intrinsics_neon
2145 "
2146
2147 COMPLEX_FUNCS="
2148     cabs
2149     cexp
2150 "
2151
2152 MATH_FUNCS="
2153     atanf
2154     atan2f
2155     cbrt
2156     cbrtf
2157     copysign
2158     cosf
2159     erf
2160     exp2
2161     exp2f
2162     expf
2163     hypot
2164     isfinite
2165     isinf
2166     isnan
2167     ldexpf
2168     llrint
2169     llrintf
2170     log2
2171     log2f
2172     log10f
2173     lrint
2174     lrintf
2175     powf
2176     rint
2177     round
2178     roundf
2179     sinf
2180     trunc
2181     truncf
2182 "
2183
2184 SYSTEM_FEATURES="
2185     dos_paths
2186     libc_msvcrt
2187     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2188     section_data_rel_ro
2189     threads
2190     uwp
2191     winrt
2192 "
2193
2194 SYSTEM_FUNCS="
2195     access
2196     aligned_malloc
2197     arc4random
2198     clock_gettime
2199     closesocket
2200     CommandLineToArgvW
2201     fcntl
2202     getaddrinfo
2203     gethrtime
2204     getopt
2205     GetModuleHandle
2206     GetProcessAffinityMask
2207     GetProcessMemoryInfo
2208     GetProcessTimes
2209     getrusage
2210     GetStdHandle
2211     GetSystemTimeAsFileTime
2212     gettimeofday
2213     glob
2214     glXGetProcAddress
2215     gmtime_r
2216     inet_aton
2217     isatty
2218     kbhit
2219     localtime_r
2220     lstat
2221     lzo1x_999_compress
2222     mach_absolute_time
2223     MapViewOfFile
2224     memalign
2225     mkstemp
2226     mmap
2227     mprotect
2228     nanosleep
2229     PeekNamedPipe
2230     posix_memalign
2231     pthread_cancel
2232     sched_getaffinity
2233     SecItemImport
2234     SetConsoleTextAttribute
2235     SetConsoleCtrlHandler
2236     SetDllDirectory
2237     setmode
2238     setrlimit
2239     Sleep
2240     strerror_r
2241     sysconf
2242     sysctl
2243     usleep
2244     UTGetOSTypeFromString
2245     VirtualAlloc
2246     wglGetProcAddress
2247 "
2248
2249 SYSTEM_LIBRARIES="
2250     bcrypt
2251     vaapi_drm
2252     vaapi_x11
2253     vdpau_x11
2254 "
2255
2256 TOOLCHAIN_FEATURES="
2257     as_arch_directive
2258     as_dn_directive
2259     as_fpu_directive
2260     as_func
2261     as_object_arch
2262     asm_mod_q
2263     blocks_extension
2264     ebp_available
2265     ebx_available
2266     gnu_as
2267     gnu_windres
2268     ibm_asm
2269     inline_asm_direct_symbol_refs
2270     inline_asm_labels
2271     inline_asm_nonlocal_labels
2272     pragma_deprecated
2273     rsync_contimeout
2274     symver_asm_label
2275     symver_gnu_asm
2276     vfp_args
2277     xform_asm
2278     xmm_clobbers
2279 "
2280
2281 TYPES_LIST="
2282     kCMVideoCodecType_HEVC
2283     kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
2284     kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
2285     kCVImageBufferTransferFunction_ITU_R_2100_HLG
2286     kCVImageBufferTransferFunction_Linear
2287     socklen_t
2288     struct_addrinfo
2289     struct_group_source_req
2290     struct_ip_mreq_source
2291     struct_ipv6_mreq
2292     struct_msghdr_msg_flags
2293     struct_pollfd
2294     struct_rusage_ru_maxrss
2295     struct_sctp_event_subscribe
2296     struct_sockaddr_in6
2297     struct_sockaddr_sa_len
2298     struct_sockaddr_storage
2299     struct_stat_st_mtim_tv_nsec
2300     struct_v4l2_frmivalenum_discrete
2301 "
2302
2303 HAVE_LIST="
2304     $ARCH_EXT_LIST
2305     $(add_suffix _external $ARCH_EXT_LIST)
2306     $(add_suffix _inline   $ARCH_EXT_LIST)
2307     $ARCH_FEATURES
2308     $BUILTIN_LIST
2309     $COMPLEX_FUNCS
2310     $HAVE_LIST_CMDLINE
2311     $HAVE_LIST_PUB
2312     $HEADERS_LIST
2313     $INTRINSICS_LIST
2314     $MATH_FUNCS
2315     $SYSTEM_FEATURES
2316     $SYSTEM_FUNCS
2317     $SYSTEM_LIBRARIES
2318     $THREADS_LIST
2319     $TOOLCHAIN_FEATURES
2320     $TYPES_LIST
2321     makeinfo
2322     makeinfo_html
2323     opencl_d3d11
2324     opencl_drm_arm
2325     opencl_drm_beignet
2326     opencl_dxva2
2327     opencl_vaapi_beignet
2328     opencl_vaapi_intel_media
2329     perl
2330     pod2man
2331     texi2html
2332 "
2333
2334 # options emitted with CONFIG_ prefix but not available on the command line
2335 CONFIG_EXTRA="
2336     aandcttables
2337     ac3dsp
2338     adts_header
2339     audio_frame_queue
2340     audiodsp
2341     blockdsp
2342     bswapdsp
2343     cabac
2344     cbs
2345     cbs_av1
2346     cbs_h264
2347     cbs_h265
2348     cbs_jpeg
2349     cbs_mpeg2
2350     cbs_vp9
2351     dirac_parse
2352     dnn
2353     dvprofile
2354     exif
2355     faandct
2356     faanidct
2357     fdctdsp
2358     flacdsp
2359     fmtconvert
2360     frame_thread_encoder
2361     g722dsp
2362     golomb
2363     gplv3
2364     h263dsp
2365     h264chroma
2366     h264dsp
2367     h264parse
2368     h264pred
2369     h264qpel
2370     hevcparse
2371     hpeldsp
2372     huffman
2373     huffyuvdsp
2374     huffyuvencdsp
2375     idctdsp
2376     iirfilter
2377     mdct15
2378     intrax8
2379     iso_media
2380     ividsp
2381     jpegtables
2382     lgplv3
2383     libx262
2384     llauddsp
2385     llviddsp
2386     llvidencdsp
2387     lpc
2388     lzf
2389     me_cmp
2390     mpeg_er
2391     mpegaudio
2392     mpegaudiodsp
2393     mpegaudioheader
2394     mpegvideo
2395     mpegvideoenc
2396     mss34dsp
2397     pixblockdsp
2398     qpeldsp
2399     qsv
2400     qsvdec
2401     qsvenc
2402     qsvvpp
2403     rangecoder
2404     riffdec
2405     riffenc
2406     rtpdec
2407     rtpenc_chain
2408     rv34dsp
2409     scene_sad
2410     sinewin
2411     snappy
2412     srtp
2413     startcode
2414     texturedsp
2415     texturedspenc
2416     tpeldsp
2417     vaapi_1
2418     vaapi_encode
2419     vc1dsp
2420     videodsp
2421     vp3dsp
2422     vp56dsp
2423     vp8dsp
2424     wma_freqs
2425     wmv2dsp
2426 "
2427
2428 CMDLINE_SELECT="
2429     $ARCH_EXT_LIST
2430     $CONFIG_LIST
2431     $HAVE_LIST_CMDLINE
2432     $THREADS_LIST
2433     asm
2434     cross_compile
2435     debug
2436     extra_warnings
2437     logging
2438     lto
2439     optimizations
2440     rpath
2441     stripping
2442 "
2443
2444 PATHS_LIST="
2445     bindir
2446     datadir
2447     docdir
2448     incdir
2449     libdir
2450     mandir
2451     pkgconfigdir
2452     prefix
2453     shlibdir
2454     install_name_dir
2455 "
2456
2457 CMDLINE_SET="
2458     $PATHS_LIST
2459     ar
2460     arch
2461     as
2462     assert_level
2463     build_suffix
2464     cc
2465     objcc
2466     cpu
2467     cross_prefix
2468     custom_allocator
2469     cxx
2470     dep_cc
2471     doxygen
2472     env
2473     extra_version
2474     gas
2475     host_cc
2476     host_cflags
2477     host_extralibs
2478     host_ld
2479     host_ldflags
2480     host_os
2481     ignore_tests
2482     install
2483     ld
2484     ln_s
2485     logfile
2486     malloc_prefix
2487     nm
2488     optflags
2489     nvcc
2490     nvccflags
2491     pkg_config
2492     pkg_config_flags
2493     progs_suffix
2494     random_seed
2495     ranlib
2496     samples
2497     strip
2498     sws_max_filter_size
2499     sysinclude
2500     sysroot
2501     target_exec
2502     target_os
2503     target_path
2504     target_samples
2505     tempprefix
2506     toolchain
2507     valgrind
2508     windres
2509     x86asmexe
2510 "
2511
2512 CMDLINE_APPEND="
2513     extra_cflags
2514     extra_cxxflags
2515     extra_objcflags
2516     host_cppflags
2517 "
2518
2519 # code dependency declarations
2520
2521 # architecture extensions
2522
2523 armv5te_deps="arm"
2524 armv6_deps="arm"
2525 armv6t2_deps="arm"
2526 armv8_deps="aarch64"
2527 neon_deps_any="aarch64 arm"
2528 intrinsics_neon_deps="neon"
2529 vfp_deps_any="aarch64 arm"
2530 vfpv3_deps="vfp"
2531 setend_deps="arm"
2532
2533 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2534
2535 altivec_deps="ppc"
2536 dcbzl_deps="ppc"
2537 ldbrx_deps="ppc"
2538 ppc4xx_deps="ppc"
2539 vsx_deps="altivec"
2540 power8_deps="vsx"
2541
2542 loongson2_deps="mips"
2543 loongson3_deps="mips"
2544 mips32r2_deps="mips"
2545 mips32r5_deps="mips"
2546 mips32r6_deps="mips"
2547 mips64r2_deps="mips"
2548 mips64r6_deps="mips"
2549 mipsfpu_deps="mips"
2550 mipsdsp_deps="mips"
2551 mipsdspr2_deps="mips"
2552 mmi_deps="mips"
2553 msa_deps="mipsfpu"
2554 msa2_deps="msa"
2555
2556 cpunop_deps="i686"
2557 x86_64_select="i686"
2558 x86_64_suggest="fast_cmov"
2559
2560 amd3dnow_deps="mmx"
2561 amd3dnowext_deps="amd3dnow"
2562 i686_deps="x86"
2563 mmx_deps="x86"
2564 mmxext_deps="mmx"
2565 sse_deps="mmxext"
2566 sse2_deps="sse"
2567 sse3_deps="sse2"
2568 ssse3_deps="sse3"
2569 sse4_deps="ssse3"
2570 sse42_deps="sse4"
2571 aesni_deps="sse42"
2572 avx_deps="sse42"
2573 xop_deps="avx"
2574 fma3_deps="avx"
2575 fma4_deps="avx"
2576 avx2_deps="avx"
2577 avx512_deps="avx2"
2578
2579 mmx_external_deps="x86asm"
2580 mmx_inline_deps="inline_asm x86"
2581 mmx_suggest="mmx_external mmx_inline"
2582
2583 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2584     eval dep=\$${ext}_deps
2585     eval ${ext}_external_deps='"${dep}_external"'
2586     eval ${ext}_inline_deps='"${dep}_inline"'
2587     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2588 done
2589
2590 aligned_stack_if_any="aarch64 ppc x86"
2591 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2592 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2593 fast_unaligned_if_any="aarch64 ppc x86"
2594 simd_align_16_if_any="altivec neon sse"
2595 simd_align_32_if_any="avx"
2596 simd_align_64_if_any="avx512"
2597
2598 # system capabilities
2599 linux_perf_deps="linux_perf_event_h"
2600 symver_if_any="symver_asm_label symver_gnu_asm"
2601 valgrind_backtrace_conflict="optimizations"
2602 valgrind_backtrace_deps="valgrind_valgrind_h"
2603
2604 # threading support
2605 atomics_gcc_if="sync_val_compare_and_swap"
2606 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2607 atomics_win32_if="MemoryBarrier"
2608 atomics_native_if_any="$ATOMICS_LIST"
2609 w32threads_deps="atomics_native"
2610 threads_if_any="$THREADS_LIST"
2611
2612 # subsystems
2613 cbs_av1_select="cbs"
2614 cbs_h264_select="cbs"
2615 cbs_h265_select="cbs"
2616 cbs_jpeg_select="cbs"
2617 cbs_mpeg2_select="cbs"
2618 cbs_vp9_select="cbs"
2619 dct_select="rdft"
2620 dirac_parse_select="golomb"
2621 dnn_suggest="libtensorflow"
2622 error_resilience_select="me_cmp"
2623 faandct_deps="faan"
2624 faandct_select="fdctdsp"
2625 faanidct_deps="faan"
2626 faanidct_select="idctdsp"
2627 h264dsp_select="startcode"
2628 hevcparse_select="golomb"
2629 frame_thread_encoder_deps="encoders threads"
2630 intrax8_select="blockdsp idctdsp"
2631 mdct_select="fft"
2632 mdct15_select="fft"
2633 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2634 mpeg_er_select="error_resilience"
2635 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2636 mpegaudiodsp_select="dct"
2637 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2638 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2639 vc1dsp_select="h264chroma qpeldsp startcode"
2640 rdft_select="fft"
2641
2642 # decoders / encoders
2643 aac_decoder_select="adts_header mdct15 mdct sinewin"
2644 aac_fixed_decoder_select="adts_header mdct sinewin"
2645 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2646 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2647 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2648 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2649 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2650 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2651 acelp_kelvin_decoder_select="audiodsp"
2652 adpcm_g722_decoder_select="g722dsp"
2653 adpcm_g722_encoder_select="g722dsp"
2654 aic_decoder_select="golomb idctdsp"
2655 alac_encoder_select="lpc"
2656 als_decoder_select="bswapdsp"
2657 amrnb_decoder_select="lsp"
2658 amrwb_decoder_select="lsp"
2659 amv_decoder_select="sp5x_decoder exif"
2660 amv_encoder_select="jpegtables mpegvideoenc"
2661 ape_decoder_select="bswapdsp llauddsp"
2662 apng_decoder_deps="zlib"
2663 apng_encoder_deps="zlib"
2664 apng_encoder_select="llvidencdsp"
2665 aptx_decoder_select="audio_frame_queue"
2666 aptx_encoder_select="audio_frame_queue"
2667 aptx_hd_decoder_select="audio_frame_queue"
2668 aptx_hd_encoder_select="audio_frame_queue"
2669 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2670 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2671 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2672 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2673 atrac1_decoder_select="mdct sinewin"
2674 atrac3_decoder_select="mdct"
2675 atrac3al_decoder_select="mdct"
2676 atrac3p_decoder_select="mdct sinewin"
2677 atrac3pal_decoder_select="mdct sinewin"
2678 atrac9_decoder_select="mdct"
2679 avrn_decoder_select="exif jpegtables"
2680 bink_decoder_select="blockdsp hpeldsp"
2681 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2682 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2683 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2684 clearvideo_decoder_select="idctdsp"
2685 cllc_decoder_select="bswapdsp"
2686 comfortnoise_encoder_select="lpc"
2687 cook_decoder_select="audiodsp mdct sinewin"
2688 cscd_decoder_select="lzo"
2689 cscd_decoder_suggest="zlib"
2690 dca_decoder_select="mdct"
2691 dca_encoder_select="mdct"
2692 dds_decoder_select="texturedsp"
2693 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2694 dnxhd_decoder_select="blockdsp idctdsp"
2695 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2696 dolby_e_decoder_select="mdct"
2697 dvvideo_decoder_select="dvprofile idctdsp"
2698 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2699 dxa_decoder_deps="zlib"
2700 dxv_decoder_select="lzf texturedsp"
2701 eac3_decoder_select="ac3_decoder"
2702 eac3_encoder_select="ac3_encoder"
2703 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2704 eatgq_decoder_select="aandcttables"
2705 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2706 exr_decoder_deps="zlib"
2707 ffv1_decoder_select="rangecoder"
2708 ffv1_encoder_select="rangecoder"
2709 ffvhuff_decoder_select="huffyuv_decoder"
2710 ffvhuff_encoder_select="huffyuv_encoder"
2711 fic_decoder_select="golomb"
2712 flac_decoder_select="flacdsp"
2713 flac_encoder_select="bswapdsp flacdsp lpc"
2714 flashsv2_decoder_deps="zlib"
2715 flashsv2_encoder_deps="zlib"
2716 flashsv_decoder_deps="zlib"
2717 flashsv_encoder_deps="zlib"
2718 flv_decoder_select="h263_decoder"
2719 flv_encoder_select="h263_encoder"
2720 fourxm_decoder_select="blockdsp bswapdsp"
2721 fraps_decoder_select="bswapdsp huffman"
2722 g2m_decoder_deps="zlib"
2723 g2m_decoder_select="blockdsp idctdsp jpegtables"
2724 g729_decoder_select="audiodsp"
2725 h261_decoder_select="mpegvideo"
2726 h261_encoder_select="mpegvideoenc"
2727 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2728 h263_encoder_select="h263dsp mpegvideoenc"
2729 h263i_decoder_select="h263_decoder"
2730 h263p_decoder_select="h263_decoder"
2731 h263p_encoder_select="h263_encoder"
2732 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2733 h264_decoder_suggest="error_resilience"
2734 hap_decoder_select="snappy texturedsp"
2735 hap_encoder_deps="libsnappy"
2736 hap_encoder_select="texturedspenc"
2737 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2738 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2739 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2740 hymt_decoder_select="huffyuv_decoder"
2741 iac_decoder_select="imc_decoder"
2742 imc_decoder_select="bswapdsp fft mdct sinewin"
2743 imm4_decoder_select="bswapdsp"
2744 imm5_decoder_select="h264_decoder hevc_decoder"
2745 indeo3_decoder_select="hpeldsp"
2746 indeo4_decoder_select="ividsp"
2747 indeo5_decoder_select="ividsp"
2748 interplay_video_decoder_select="hpeldsp"
2749 jpegls_decoder_select="mjpeg_decoder"
2750 jv_decoder_select="blockdsp"
2751 lagarith_decoder_select="llviddsp"
2752 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2753 lscr_decoder_deps="zlib"
2754 magicyuv_decoder_select="llviddsp"
2755 magicyuv_encoder_select="llvidencdsp"
2756 mdec_decoder_select="blockdsp bswapdsp idctdsp mpegvideo"
2757 metasound_decoder_select="lsp mdct sinewin"
2758 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2759 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2760 mjpeg_encoder_select="jpegtables mpegvideoenc"
2761 mjpegb_decoder_select="mjpeg_decoder"
2762 mlp_decoder_select="mlp_parser"
2763 mlp_encoder_select="lpc audio_frame_queue"
2764 motionpixels_decoder_select="bswapdsp"
2765 mp1_decoder_select="mpegaudio"
2766 mp1float_decoder_select="mpegaudio"
2767 mp2_decoder_select="mpegaudio"
2768 mp2float_decoder_select="mpegaudio"
2769 mp3_decoder_select="mpegaudio"
2770 mp3adu_decoder_select="mpegaudio"
2771 mp3adufloat_decoder_select="mpegaudio"
2772 mp3float_decoder_select="mpegaudio"
2773 mp3on4_decoder_select="mpegaudio"
2774 mp3on4float_decoder_select="mpegaudio"
2775 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2776 mpc8_decoder_select="mpegaudiodsp"
2777 mpegvideo_decoder_select="mpegvideo"
2778 mpeg1video_decoder_select="mpegvideo"
2779 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2780 mpeg2video_decoder_select="mpegvideo"
2781 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2782 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2783 mpeg4_encoder_select="h263_encoder"
2784 msa1_decoder_select="mss34dsp"
2785 mscc_decoder_deps="zlib"
2786 msmpeg4v1_decoder_select="h263_decoder"
2787 msmpeg4v2_decoder_select="h263_decoder"
2788 msmpeg4v2_encoder_select="h263_encoder"
2789 msmpeg4v3_decoder_select="h263_decoder"
2790 msmpeg4v3_encoder_select="h263_encoder"
2791 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2792 mts2_decoder_select="mss34dsp"
2793 mvha_decoder_deps="zlib"
2794 mvha_decoder_select="llviddsp"
2795 mwsc_decoder_deps="zlib"
2796 mxpeg_decoder_select="mjpeg_decoder"
2797 nellymoser_decoder_select="mdct sinewin"
2798 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2799 nuv_decoder_select="idctdsp lzo"
2800 on2avc_decoder_select="mdct"
2801 opus_decoder_deps="swresample"
2802 opus_decoder_select="mdct15"
2803 opus_encoder_select="audio_frame_queue mdct15"
2804 png_decoder_deps="zlib"
2805 png_encoder_deps="zlib"
2806 png_encoder_select="llvidencdsp"
2807 prores_decoder_select="blockdsp idctdsp"
2808 prores_encoder_select="fdctdsp"
2809 qcelp_decoder_select="lsp"
2810 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2811 ra_144_decoder_select="audiodsp"
2812 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2813 ralf_decoder_select="golomb"
2814 rasc_decoder_deps="zlib"
2815 rawvideo_decoder_select="bswapdsp"
2816 rscc_decoder_deps="zlib"
2817 rtjpeg_decoder_select="me_cmp"
2818 rv10_decoder_select="h263_decoder"
2819 rv10_encoder_select="h263_encoder"
2820 rv20_decoder_select="h263_decoder"
2821 rv20_encoder_select="h263_encoder"
2822 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2823 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2824 screenpresso_decoder_deps="zlib"
2825 shorten_decoder_select="bswapdsp"
2826 sipr_decoder_select="lsp"
2827 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2828 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2829 sonic_decoder_select="golomb rangecoder"
2830 sonic_encoder_select="golomb rangecoder"
2831 sonic_ls_encoder_select="golomb rangecoder"
2832 sp5x_decoder_select="mjpeg_decoder"
2833 speedhq_decoder_select="mpegvideo"
2834 srgc_decoder_deps="zlib"
2835 svq1_decoder_select="hpeldsp"
2836 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2837 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2838 svq3_decoder_suggest="zlib"
2839 tak_decoder_select="audiodsp"
2840 tdsc_decoder_deps="zlib"
2841 tdsc_decoder_select="mjpeg_decoder"
2842 theora_decoder_select="vp3_decoder"
2843 thp_decoder_select="mjpeg_decoder"
2844 tiff_decoder_select="mjpeg_decoder"
2845 tiff_decoder_suggest="zlib lzma"
2846 tiff_encoder_suggest="zlib"
2847 truehd_decoder_select="mlp_parser"
2848 truehd_encoder_select="lpc audio_frame_queue"
2849 truemotion2_decoder_select="bswapdsp"
2850 truespeech_decoder_select="bswapdsp"
2851 tscc_decoder_deps="zlib"
2852 twinvq_decoder_select="mdct lsp sinewin"
2853 txd_decoder_select="texturedsp"
2854 utvideo_decoder_select="bswapdsp llviddsp"
2855 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2856 vble_decoder_select="llviddsp"
2857 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2858 vc1image_decoder_select="vc1_decoder"
2859 vorbis_decoder_select="mdct"
2860 vorbis_encoder_select="audio_frame_queue mdct"
2861 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2862 vp4_decoder_select="vp3_decoder"
2863 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2864 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2865 vp6a_decoder_select="vp6_decoder"
2866 vp6f_decoder_select="vp6_decoder"
2867 vp7_decoder_select="h264pred videodsp vp8dsp"
2868 vp8_decoder_select="h264pred videodsp vp8dsp"
2869 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2870 wcmv_decoder_deps="zlib"
2871 webp_decoder_select="vp8_decoder exif"
2872 wmalossless_decoder_select="llauddsp"
2873 wmapro_decoder_select="mdct sinewin wma_freqs"
2874 wmav1_decoder_select="mdct sinewin wma_freqs"
2875 wmav1_encoder_select="mdct sinewin wma_freqs"
2876 wmav2_decoder_select="mdct sinewin wma_freqs"
2877 wmav2_encoder_select="mdct sinewin wma_freqs"
2878 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2879 wmv1_decoder_select="h263_decoder"
2880 wmv1_encoder_select="h263_encoder"
2881 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2882 wmv2_encoder_select="h263_encoder wmv2dsp"
2883 wmv3_decoder_select="vc1_decoder"
2884 wmv3image_decoder_select="wmv3_decoder"
2885 xma1_decoder_select="wmapro_decoder"
2886 xma2_decoder_select="wmapro_decoder"
2887 ylc_decoder_select="bswapdsp"
2888 zerocodec_decoder_deps="zlib"
2889 zlib_decoder_deps="zlib"
2890 zlib_encoder_deps="zlib"
2891 zmbv_decoder_deps="zlib"
2892 zmbv_encoder_deps="zlib"
2893
2894 # hardware accelerators
2895 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2896 cuda_deps="ffnvcodec"
2897 cuvid_deps="ffnvcodec"
2898 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2899 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2900 ffnvcodec_deps_any="libdl LoadLibrary"
2901 nvdec_deps="ffnvcodec"
2902 vaapi_x11_deps="xlib"
2903 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2904 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2905 xvmc_deps="X11_extensions_XvMClib_h"
2906
2907 h263_vaapi_hwaccel_deps="vaapi"
2908 h263_vaapi_hwaccel_select="h263_decoder"
2909 h263_videotoolbox_hwaccel_deps="videotoolbox"
2910 h263_videotoolbox_hwaccel_select="h263_decoder"
2911 h264_d3d11va_hwaccel_deps="d3d11va"
2912 h264_d3d11va_hwaccel_select="h264_decoder"
2913 h264_d3d11va2_hwaccel_deps="d3d11va"
2914 h264_d3d11va2_hwaccel_select="h264_decoder"
2915 h264_dxva2_hwaccel_deps="dxva2"
2916 h264_dxva2_hwaccel_select="h264_decoder"
2917 h264_nvdec_hwaccel_deps="nvdec"
2918 h264_nvdec_hwaccel_select="h264_decoder"
2919 h264_vaapi_hwaccel_deps="vaapi"
2920 h264_vaapi_hwaccel_select="h264_decoder"
2921 h264_vdpau_hwaccel_deps="vdpau"
2922 h264_vdpau_hwaccel_select="h264_decoder"
2923 h264_videotoolbox_hwaccel_deps="videotoolbox"
2924 h264_videotoolbox_hwaccel_select="h264_decoder"
2925 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2926 hevc_d3d11va_hwaccel_select="hevc_decoder"
2927 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2928 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2929 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2930 hevc_dxva2_hwaccel_select="hevc_decoder"
2931 hevc_nvdec_hwaccel_deps="nvdec"
2932 hevc_nvdec_hwaccel_select="hevc_decoder"
2933 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2934 hevc_vaapi_hwaccel_select="hevc_decoder"
2935 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2936 hevc_vdpau_hwaccel_select="hevc_decoder"
2937 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2938 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2939 mjpeg_nvdec_hwaccel_deps="nvdec"
2940 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2941 mjpeg_vaapi_hwaccel_deps="vaapi"
2942 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2943 mpeg_xvmc_hwaccel_deps="xvmc"
2944 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2945 mpeg1_nvdec_hwaccel_deps="nvdec"
2946 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2947 mpeg1_vdpau_hwaccel_deps="vdpau"
2948 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2949 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2950 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2951 mpeg1_xvmc_hwaccel_deps="xvmc"
2952 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2953 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2954 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2955 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2956 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2957 mpeg2_dxva2_hwaccel_deps="dxva2"
2958 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2959 mpeg2_nvdec_hwaccel_deps="nvdec"
2960 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2961 mpeg2_vaapi_hwaccel_deps="vaapi"
2962 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2963 mpeg2_vdpau_hwaccel_deps="vdpau"
2964 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2965 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2966 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2967 mpeg2_xvmc_hwaccel_deps="xvmc"
2968 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2969 mpeg4_nvdec_hwaccel_deps="nvdec"
2970 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2971 mpeg4_vaapi_hwaccel_deps="vaapi"
2972 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2973 mpeg4_vdpau_hwaccel_deps="vdpau"
2974 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2975 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2976 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2977 vc1_d3d11va_hwaccel_deps="d3d11va"
2978 vc1_d3d11va_hwaccel_select="vc1_decoder"
2979 vc1_d3d11va2_hwaccel_deps="d3d11va"
2980 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2981 vc1_dxva2_hwaccel_deps="dxva2"
2982 vc1_dxva2_hwaccel_select="vc1_decoder"
2983 vc1_nvdec_hwaccel_deps="nvdec"
2984 vc1_nvdec_hwaccel_select="vc1_decoder"
2985 vc1_vaapi_hwaccel_deps="vaapi"
2986 vc1_vaapi_hwaccel_select="vc1_decoder"
2987 vc1_vdpau_hwaccel_deps="vdpau"
2988 vc1_vdpau_hwaccel_select="vc1_decoder"
2989 vp8_nvdec_hwaccel_deps="nvdec"
2990 vp8_nvdec_hwaccel_select="vp8_decoder"
2991 vp8_vaapi_hwaccel_deps="vaapi"
2992 vp8_vaapi_hwaccel_select="vp8_decoder"
2993 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2994 vp9_d3d11va_hwaccel_select="vp9_decoder"
2995 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2996 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2997 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2998 vp9_dxva2_hwaccel_select="vp9_decoder"
2999 vp9_nvdec_hwaccel_deps="nvdec"
3000 vp9_nvdec_hwaccel_select="vp9_decoder"
3001 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
3002 vp9_vaapi_hwaccel_select="vp9_decoder"
3003 vp9_vdpau_hwaccel_deps="vdpau VdpPictureInfoVP9"
3004 vp9_vdpau_hwaccel_select="vp9_decoder"
3005 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
3006 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
3007 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
3008 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
3009 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
3010 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
3011
3012 # hardware-accelerated codecs
3013 omx_deps="libdl pthreads"
3014 omx_rpi_select="omx"
3015 qsv_deps="libmfx"
3016 qsvdec_select="qsv"
3017 qsvenc_select="qsv"
3018 qsvvpp_select="qsv"
3019 vaapi_encode_deps="vaapi"
3020 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
3021
3022 hwupload_cuda_filter_deps="ffnvcodec"
3023 scale_npp_filter_deps="ffnvcodec libnpp"
3024 scale_cuda_filter_deps="ffnvcodec"
3025 scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3026 thumbnail_cuda_filter_deps="ffnvcodec"
3027 thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3028 transpose_npp_filter_deps="ffnvcodec libnpp"
3029
3030 amf_deps_any="libdl LoadLibrary"
3031 nvenc_deps="ffnvcodec"
3032 nvenc_deps_any="libdl LoadLibrary"
3033 nvenc_encoder_deps="nvenc"
3034
3035 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3036 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3037 h264_amf_encoder_deps="amf"
3038 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3039 h264_cuvid_decoder_deps="cuvid"
3040 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3041 h264_mediacodec_decoder_deps="mediacodec"
3042 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3043 h264_mmal_decoder_deps="mmal"
3044 h264_nvenc_encoder_deps="nvenc"
3045 h264_omx_encoder_deps="omx"
3046 h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
3047 h264_qsv_encoder_select="qsvenc"
3048 h264_rkmpp_decoder_deps="rkmpp"
3049 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3050 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3051 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3052 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3053 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3054 hevc_amf_encoder_deps="amf"
3055 hevc_cuvid_decoder_deps="cuvid"
3056 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3057 hevc_mediacodec_decoder_deps="mediacodec"
3058 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3059 hevc_nvenc_encoder_deps="nvenc"
3060 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
3061 hevc_qsv_encoder_select="hevcparse qsvenc"
3062 hevc_rkmpp_decoder_deps="rkmpp"
3063 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3064 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3065 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3066 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3067 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3068 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3069 mjpeg_cuvid_decoder_deps="cuvid"
3070 mjpeg_qsv_decoder_select="qsvdec"
3071 mjpeg_qsv_encoder_deps="libmfx"
3072 mjpeg_qsv_encoder_select="qsvenc"
3073 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3074 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3075 mpeg1_cuvid_decoder_deps="cuvid"
3076 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3077 mpeg2_crystalhd_decoder_select="crystalhd"
3078 mpeg2_cuvid_decoder_deps="cuvid"
3079 mpeg2_mmal_decoder_deps="mmal"
3080 mpeg2_mediacodec_decoder_deps="mediacodec"
3081 mpeg2_qsv_decoder_select="qsvdec"
3082 mpeg2_qsv_encoder_select="qsvenc"
3083 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3084 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3085 mpeg4_crystalhd_decoder_select="crystalhd"
3086 mpeg4_cuvid_decoder_deps="cuvid"
3087 mpeg4_mediacodec_decoder_deps="mediacodec"
3088 mpeg4_mmal_decoder_deps="mmal"
3089 mpeg4_omx_encoder_deps="omx"
3090 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3091 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3092 msmpeg4_crystalhd_decoder_select="crystalhd"
3093 nvenc_h264_encoder_select="h264_nvenc_encoder"
3094 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3095 vc1_crystalhd_decoder_select="crystalhd"
3096 vc1_cuvid_decoder_deps="cuvid"
3097 vc1_mmal_decoder_deps="mmal"
3098 vc1_qsv_decoder_select="qsvdec"
3099 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3100 vp8_cuvid_decoder_deps="cuvid"
3101 vp8_mediacodec_decoder_deps="mediacodec"
3102 vp8_qsv_decoder_select="qsvdec"
3103 vp8_rkmpp_decoder_deps="rkmpp"
3104 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3105 vp8_vaapi_encoder_select="vaapi_encode"
3106 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3107 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3108 vp9_cuvid_decoder_deps="cuvid"
3109 vp9_mediacodec_decoder_deps="mediacodec"
3110 vp9_qsv_decoder_select="qsvdec"
3111 vp9_rkmpp_decoder_deps="rkmpp"
3112 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3113 vp9_vaapi_encoder_select="vaapi_encode"
3114 vp9_qsv_encoder_deps="libmfx MFX_CODEC_VP9"
3115 vp9_qsv_encoder_select="qsvenc"
3116 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3117 wmv3_crystalhd_decoder_select="crystalhd"
3118
3119 # parsers
3120 aac_parser_select="adts_header"
3121 av1_parser_select="cbs_av1"
3122 h264_parser_select="golomb h264dsp h264parse"
3123 hevc_parser_select="hevcparse"
3124 mpegaudio_parser_select="mpegaudioheader"
3125 mpegvideo_parser_select="mpegvideo"
3126 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3127 vc1_parser_select="vc1dsp"
3128
3129 # bitstream_filters
3130 aac_adtstoasc_bsf_select="adts_header"
3131 av1_frame_merge_bsf_select="cbs_av1"
3132 av1_frame_split_bsf_select="cbs_av1"
3133 av1_metadata_bsf_select="cbs_av1"
3134 eac3_core_bsf_select="ac3_parser"
3135 filter_units_bsf_select="cbs"
3136 h264_metadata_bsf_deps="const_nan"
3137 h264_metadata_bsf_select="cbs_h264"
3138 h264_redundant_pps_bsf_select="cbs_h264"
3139 hevc_metadata_bsf_select="cbs_h265"
3140 mjpeg2jpeg_bsf_select="jpegtables"
3141 mpeg2_metadata_bsf_select="cbs_mpeg2"
3142 trace_headers_bsf_select="cbs"
3143 vp9_metadata_bsf_select="cbs_vp9"
3144
3145 # external libraries
3146 aac_at_decoder_deps="audiotoolbox"
3147 aac_at_decoder_select="aac_adtstoasc_bsf"
3148 ac3_at_decoder_deps="audiotoolbox"
3149 ac3_at_decoder_select="ac3_parser"
3150 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3151 alac_at_decoder_deps="audiotoolbox"
3152 amr_nb_at_decoder_deps="audiotoolbox"
3153 avisynth_deps_any="libdl LoadLibrary"
3154 avisynth_demuxer_deps="avisynth"
3155 avisynth_demuxer_select="riffdec"
3156 eac3_at_decoder_deps="audiotoolbox"
3157 eac3_at_decoder_select="ac3_parser"
3158 gsm_ms_at_decoder_deps="audiotoolbox"
3159 ilbc_at_decoder_deps="audiotoolbox"
3160 mp1_at_decoder_deps="audiotoolbox"
3161 mp2_at_decoder_deps="audiotoolbox"
3162 mp3_at_decoder_deps="audiotoolbox"
3163 mp1_at_decoder_select="mpegaudioheader"
3164 mp2_at_decoder_select="mpegaudioheader"
3165 mp3_at_decoder_select="mpegaudioheader"
3166 pcm_alaw_at_decoder_deps="audiotoolbox"
3167 pcm_mulaw_at_decoder_deps="audiotoolbox"
3168 qdmc_decoder_select="fft"
3169 qdmc_at_decoder_deps="audiotoolbox"
3170 qdm2_at_decoder_deps="audiotoolbox"
3171 aac_at_encoder_deps="audiotoolbox"
3172 aac_at_encoder_select="audio_frame_queue"
3173 alac_at_encoder_deps="audiotoolbox"
3174 alac_at_encoder_select="audio_frame_queue"
3175 ilbc_at_encoder_deps="audiotoolbox"
3176 ilbc_at_encoder_select="audio_frame_queue"
3177 pcm_alaw_at_encoder_deps="audiotoolbox"
3178 pcm_alaw_at_encoder_select="audio_frame_queue"
3179 pcm_mulaw_at_encoder_deps="audiotoolbox"
3180 pcm_mulaw_at_encoder_select="audio_frame_queue"
3181 chromaprint_muxer_deps="chromaprint"
3182 h264_videotoolbox_encoder_deps="pthreads"
3183 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3184 hevc_videotoolbox_encoder_deps="pthreads"
3185 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3186 libaom_av1_decoder_deps="libaom"
3187 libaom_av1_encoder_deps="libaom"
3188 libaom_av1_encoder_select="extract_extradata_bsf"
3189 libaribb24_decoder_deps="libaribb24"
3190 libcelt_decoder_deps="libcelt"
3191 libcodec2_decoder_deps="libcodec2"
3192 libcodec2_encoder_deps="libcodec2"
3193 libdav1d_decoder_deps="libdav1d"
3194 libdavs2_decoder_deps="libdavs2"
3195 libfdk_aac_decoder_deps="libfdk_aac"
3196 libfdk_aac_encoder_deps="libfdk_aac"
3197 libfdk_aac_encoder_select="audio_frame_queue"
3198 libgme_demuxer_deps="libgme"
3199 libgsm_decoder_deps="libgsm"
3200 libgsm_encoder_deps="libgsm"
3201 libgsm_ms_decoder_deps="libgsm"
3202 libgsm_ms_encoder_deps="libgsm"
3203 libilbc_decoder_deps="libilbc"
3204 libilbc_encoder_deps="libilbc"
3205 libkvazaar_encoder_deps="libkvazaar"
3206 libmodplug_demuxer_deps="libmodplug"
3207 libmp3lame_encoder_deps="libmp3lame"
3208 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3209 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3210 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3211 libopencore_amrnb_encoder_select="audio_frame_queue"
3212 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3213 libopenh264_decoder_deps="libopenh264"
3214 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3215 libopenh264_encoder_deps="libopenh264"
3216 libopenjpeg_decoder_deps="libopenjpeg"
3217 libopenjpeg_encoder_deps="libopenjpeg"
3218 libopenmpt_demuxer_deps="libopenmpt"
3219 libopus_decoder_deps="libopus"
3220 libopus_encoder_deps="libopus"
3221 libopus_encoder_select="audio_frame_queue"
3222 librav1e_encoder_deps="librav1e"
3223 librav1e_encoder_select="extract_extradata_bsf"
3224 librsvg_decoder_deps="librsvg"
3225 libshine_encoder_deps="libshine"
3226 libshine_encoder_select="audio_frame_queue"
3227 libspeex_decoder_deps="libspeex"
3228 libspeex_encoder_deps="libspeex"
3229 libspeex_encoder_select="audio_frame_queue"
3230 libtheora_encoder_deps="libtheora"
3231 libtwolame_encoder_deps="libtwolame"
3232 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3233 libvorbis_decoder_deps="libvorbis"
3234 libvorbis_encoder_deps="libvorbis libvorbisenc"
3235 libvorbis_encoder_select="audio_frame_queue"
3236 libvpx_vp8_decoder_deps="libvpx"
3237 libvpx_vp8_encoder_deps="libvpx"
3238 libvpx_vp9_decoder_deps="libvpx"
3239 libvpx_vp9_encoder_deps="libvpx"
3240 libwavpack_encoder_deps="libwavpack"
3241 libwavpack_encoder_select="audio_frame_queue"
3242 libwebp_encoder_deps="libwebp"
3243 libwebp_anim_encoder_deps="libwebp"
3244 libx262_encoder_deps="libx262"
3245 libx264_encoder_deps="libx264"
3246 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3247 libx264rgb_encoder_select="libx264_encoder"
3248 libx265_encoder_deps="libx265"
3249 libxavs_encoder_deps="libxavs"
3250 libxavs2_encoder_deps="libxavs2"
3251 libxvid_encoder_deps="libxvid"
3252 libzvbi_teletext_decoder_deps="libzvbi"
3253 vapoursynth_demuxer_deps="vapoursynth"
3254 videotoolbox_suggest="coreservices"
3255 videotoolbox_deps="corefoundation coremedia corevideo"
3256 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3257
3258 # demuxers / muxers
3259 ac3_demuxer_select="ac3_parser"
3260 act_demuxer_select="riffdec"
3261 aiff_muxer_select="iso_media"
3262 asf_demuxer_select="riffdec"
3263 asf_o_demuxer_select="riffdec"
3264 asf_muxer_select="riffenc"
3265 asf_stream_muxer_select="asf_muxer"
3266 av1_demuxer_select="av1_frame_merge_bsf av1_parser"
3267 avi_demuxer_select="iso_media riffdec exif"
3268 avi_muxer_select="riffenc"
3269 caf_demuxer_select="iso_media riffdec"
3270 caf_muxer_select="iso_media"
3271 dash_muxer_select="mp4_muxer"
3272 dash_demuxer_deps="libxml2"
3273 dirac_demuxer_select="dirac_parser"
3274 dts_demuxer_select="dca_parser"
3275 dtshd_demuxer_select="dca_parser"
3276 dv_demuxer_select="dvprofile"
3277 dv_muxer_select="dvprofile"
3278 dxa_demuxer_select="riffdec"
3279 eac3_demuxer_select="ac3_parser"
3280 f4v_muxer_select="mov_muxer"
3281 fifo_muxer_deps="threads"
3282 flac_demuxer_select="flac_parser"
3283 hds_muxer_select="flv_muxer"
3284 hls_muxer_select="mpegts_muxer"
3285 hls_muxer_suggest="gcrypt openssl"
3286 image2_alias_pix_demuxer_select="image2_demuxer"
3287 image2_brender_pix_demuxer_select="image2_demuxer"
3288 ipod_muxer_select="mov_muxer"
3289 ismv_muxer_select="mov_muxer"
3290 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3291 matroska_audio_muxer_select="matroska_muxer"
3292 matroska_demuxer_select="iso_media riffdec"
3293 matroska_demuxer_suggest="bzlib lzo zlib"
3294 matroska_muxer_select="iso_media riffenc"
3295 mmf_muxer_select="riffenc"
3296 mov_demuxer_select="iso_media riffdec"
3297 mov_demuxer_suggest="zlib"
3298 mov_muxer_select="iso_media riffenc rtpenc_chain"
3299 mp3_demuxer_select="mpegaudio_parser"
3300 mp3_muxer_select="mpegaudioheader"
3301 mp4_muxer_select="mov_muxer"
3302 mpegts_demuxer_select="iso_media"
3303 mpegts_muxer_select="adts_muxer latm_muxer"
3304 mpegtsraw_demuxer_select="mpegts_demuxer"
3305 mxf_muxer_select="golomb"
3306 mxf_d10_muxer_select="mxf_muxer"
3307 mxf_opatom_muxer_select="mxf_muxer"
3308 nut_muxer_select="riffenc"
3309 nuv_demuxer_select="riffdec"
3310 oga_muxer_select="ogg_muxer"
3311 ogg_demuxer_select="dirac_parse"
3312 ogv_muxer_select="ogg_muxer"
3313 opus_muxer_select="ogg_muxer"
3314 psp_muxer_select="mov_muxer"
3315 rtp_demuxer_select="sdp_demuxer"
3316 rtp_muxer_select="golomb jpegtables"
3317 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3318 rtsp_demuxer_select="http_protocol rtpdec"
3319 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3320 sap_demuxer_select="sdp_demuxer"
3321 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3322 sdp_demuxer_select="rtpdec"
3323 smoothstreaming_muxer_select="ismv_muxer"
3324 spdif_demuxer_select="adts_header"
3325 spdif_muxer_select="adts_header"
3326 spx_muxer_select="ogg_muxer"
3327 swf_demuxer_suggest="zlib"
3328 tak_demuxer_select="tak_parser"
3329 tg2_muxer_select="mov_muxer"
3330 tgp_muxer_select="mov_muxer"
3331 vobsub_demuxer_select="mpegps_demuxer"
3332 w64_demuxer_select="wav_demuxer"
3333 w64_muxer_select="wav_muxer"
3334 wav_demuxer_select="riffdec"
3335 wav_muxer_select="riffenc"
3336 webm_muxer_select="iso_media riffenc"
3337 webm_dash_manifest_demuxer_select="matroska_demuxer"
3338 wtv_demuxer_select="mpegts_demuxer riffdec"
3339 wtv_muxer_select="mpegts_muxer riffenc"
3340 xmv_demuxer_select="riffdec"
3341 xwma_demuxer_select="riffdec"
3342
3343 # indevs / outdevs
3344 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3345 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3346 alsa_indev_deps="alsa"
3347 alsa_outdev_deps="alsa"
3348 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3349 avfoundation_indev_suggest="coregraphics applicationservices"
3350 avfoundation_indev_extralibs="-framework Foundation"
3351 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3352 caca_outdev_deps="libcaca"
3353 decklink_deps_any="libdl LoadLibrary"
3354 decklink_indev_deps="decklink threads"
3355 decklink_indev_extralibs="-lstdc++"
3356 decklink_outdev_deps="decklink threads"
3357 decklink_outdev_suggest="libklvanc"
3358 decklink_outdev_extralibs="-lstdc++"
3359 dshow_indev_deps="IBaseFilter"
3360 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3361 fbdev_indev_deps="linux_fb_h"
3362 fbdev_outdev_deps="linux_fb_h"
3363 gdigrab_indev_deps="CreateDIBSection"
3364 gdigrab_indev_extralibs="-lgdi32"
3365 gdigrab_indev_select="bmp_decoder"
3366 iec61883_indev_deps="libiec61883"
3367 jack_indev_deps="libjack"
3368 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3369 kmsgrab_indev_deps="libdrm"
3370 lavfi_indev_deps="avfilter"
3371 libcdio_indev_deps="libcdio"
3372 libdc1394_indev_deps="libdc1394"
3373 openal_indev_deps="openal"
3374 opengl_outdev_deps="opengl"
3375 opengl_outdev_suggest="sdl2"
3376 oss_indev_deps_any="sys_soundcard_h"
3377 oss_outdev_deps_any="sys_soundcard_h"
3378 pulse_indev_deps="libpulse"
3379 pulse_outdev_deps="libpulse"
3380 sdl2_outdev_deps="sdl2"
3381 sndio_indev_deps="sndio"
3382 sndio_outdev_deps="sndio"
3383 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3384 v4l2_indev_suggest="libv4l2"
3385 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3386 v4l2_outdev_suggest="libv4l2"
3387 vfwcap_indev_deps="vfw32 vfwcap_defines"
3388 xcbgrab_indev_deps="libxcb"
3389 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3390 xv_outdev_deps="xlib"
3391
3392 # protocols
3393 async_protocol_deps="threads"
3394 bluray_protocol_deps="libbluray"
3395 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3396 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3397 ffrtmpcrypt_protocol_select="tcp_protocol"
3398 ffrtmphttp_protocol_conflict="librtmp_protocol"
3399 ffrtmphttp_protocol_select="http_protocol"
3400 ftp_protocol_select="tcp_protocol"
3401 gopher_protocol_select="network"
3402 http_protocol_select="tcp_protocol"
3403 http_protocol_suggest="zlib"
3404 httpproxy_protocol_select="tcp_protocol"
3405 httpproxy_protocol_suggest="zlib"
3406 https_protocol_select="tls_protocol"
3407 https_protocol_suggest="zlib"
3408 icecast_protocol_select="http_protocol"
3409 mmsh_protocol_select="http_protocol"
3410 mmst_protocol_select="network"
3411 rtmp_protocol_conflict="librtmp_protocol"
3412 rtmp_protocol_select="tcp_protocol"
3413 rtmp_protocol_suggest="zlib"
3414 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3415 rtmpe_protocol_suggest="zlib"
3416 rtmps_protocol_conflict="librtmp_protocol"
3417 rtmps_protocol_select="tls_protocol"
3418 rtmps_protocol_suggest="zlib"
3419 rtmpt_protocol_select="ffrtmphttp_protocol"
3420 rtmpt_protocol_suggest="zlib"
3421 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3422 rtmpte_protocol_suggest="zlib"
3423 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3424 rtmpts_protocol_suggest="zlib"
3425 rtp_protocol_select="udp_protocol"
3426 schannel_conflict="openssl gnutls libtls mbedtls"
3427 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3428 sctp_protocol_select="network"
3429 securetransport_conflict="openssl gnutls libtls mbedtls"
3430 srtp_protocol_select="rtp_protocol srtp"
3431 tcp_protocol_select="network"
3432 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3433 tls_protocol_select="tcp_protocol"
3434 udp_protocol_select="network"
3435 udplite_protocol_select="network"
3436 unix_protocol_deps="sys_un_h"
3437 unix_protocol_select="network"
3438
3439 # external library protocols
3440 libamqp_protocol_deps="librabbitmq"
3441 libamqp_protocol_select="network"
3442 librtmp_protocol_deps="librtmp"
3443 librtmpe_protocol_deps="librtmp"
3444 librtmps_protocol_deps="librtmp"
3445 librtmpt_protocol_deps="librtmp"
3446 librtmpte_protocol_deps="librtmp"
3447 libsmbclient_protocol_deps="libsmbclient gplv3"
3448 libsrt_protocol_deps="libsrt"
3449 libsrt_protocol_select="network"
3450 libssh_protocol_deps="libssh"
3451 libtls_conflict="openssl gnutls mbedtls"
3452 libzmq_protocol_deps="libzmq"
3453 libzmq_protocol_select="network"
3454
3455 # filters
3456 afftdn_filter_deps="avcodec"
3457 afftdn_filter_select="fft"
3458 afftfilt_filter_deps="avcodec"
3459 afftfilt_filter_select="fft"
3460 afir_filter_deps="avcodec"
3461 afir_filter_select="rdft"
3462 amovie_filter_deps="avcodec avformat"
3463 aresample_filter_deps="swresample"
3464 asr_filter_deps="pocketsphinx"
3465 ass_filter_deps="libass"
3466 atempo_filter_deps="avcodec"
3467 atempo_filter_select="rdft"
3468 avgblur_opencl_filter_deps="opencl"
3469 avgblur_vulkan_filter_deps="vulkan libglslang"
3470 azmq_filter_deps="libzmq"
3471 blackframe_filter_deps="gpl"
3472 bm3d_filter_deps="avcodec"
3473 bm3d_filter_select="dct"
3474 boxblur_filter_deps="gpl"
3475 boxblur_opencl_filter_deps="opencl gpl"
3476 bs2b_filter_deps="libbs2b"
3477 chromaber_vulkan_filter_deps="vulkan libglslang"
3478 colorkey_opencl_filter_deps="opencl"
3479 colormatrix_filter_deps="gpl"
3480 convolution_opencl_filter_deps="opencl"
3481 convolve_filter_deps="avcodec"
3482 convolve_filter_select="fft"
3483 coreimage_filter_deps="coreimage appkit"
3484 coreimage_filter_extralibs="-framework OpenGL"
3485 coreimagesrc_filter_deps="coreimage appkit"
3486 coreimagesrc_filter_extralibs="-framework OpenGL"
3487 cover_rect_filter_deps="avcodec avformat gpl"
3488 cropdetect_filter_deps="gpl"
3489 deconvolve_filter_deps="avcodec"
3490 deconvolve_filter_select="fft"
3491 deinterlace_qsv_filter_deps="libmfx"
3492 deinterlace_vaapi_filter_deps="vaapi"
3493 delogo_filter_deps="gpl"
3494 denoise_vaapi_filter_deps="vaapi"
3495 derain_filter_select="dnn"
3496 deshake_filter_select="pixelutils"
3497 deshake_opencl_filter_deps="opencl"
3498 dilation_opencl_filter_deps="opencl"
3499 dnn_processing_filter_select="dnn"
3500 drawtext_filter_deps="libfreetype"
3501 drawtext_filter_suggest="libfontconfig libfribidi"
3502 elbg_filter_deps="avcodec"
3503 eq_filter_deps="gpl"
3504 erosion_opencl_filter_deps="opencl"
3505 fftfilt_filter_deps="avcodec"
3506 fftfilt_filter_select="rdft"
3507 fftdnoiz_filter_deps="avcodec"
3508 fftdnoiz_filter_select="fft"
3509 find_rect_filter_deps="avcodec avformat gpl"
3510 firequalizer_filter_deps="avcodec"
3511 firequalizer_filter_select="rdft"
3512 flite_filter_deps="libflite"
3513 framerate_filter_select="scene_sad"
3514 freezedetect_filter_select="scene_sad"
3515 frei0r_filter_deps="frei0r libdl"
3516 frei0r_src_filter_deps="frei0r libdl"
3517 fspp_filter_deps="gpl"
3518 headphone_filter_select="fft"
3519 histeq_filter_deps="gpl"
3520 hqdn3d_filter_deps="gpl"
3521 interlace_filter_deps="gpl"
3522 kerndeint_filter_deps="gpl"
3523 ladspa_filter_deps="ladspa libdl"
3524 lensfun_filter_deps="liblensfun version3"
3525 lv2_filter_deps="lv2"
3526 mcdeint_filter_deps="avcodec gpl"
3527 movie_filter_deps="avcodec avformat"
3528 mpdecimate_filter_deps="gpl"
3529 mpdecimate_filter_select="pixelutils"
3530 minterpolate_filter_select="scene_sad"
3531 mptestsrc_filter_deps="gpl"
3532 negate_filter_deps="lut_filter"
3533 nlmeans_opencl_filter_deps="opencl"
3534 nnedi_filter_deps="gpl"
3535 ocr_filter_deps="libtesseract"
3536 ocv_filter_deps="libopencv"
3537 openclsrc_filter_deps="opencl"
3538 overlay_opencl_filter_deps="opencl"
3539 overlay_qsv_filter_deps="libmfx"
3540 overlay_qsv_filter_select="qsvvpp"
3541 overlay_vulkan_filter_deps="vulkan libglslang"
3542 owdenoise_filter_deps="gpl"
3543 pad_opencl_filter_deps="opencl"
3544 pan_filter_deps="swresample"
3545 perspective_filter_deps="gpl"
3546 phase_filter_deps="gpl"
3547 pp7_filter_deps="gpl"
3548 pp_filter_deps="gpl postproc"
3549 prewitt_opencl_filter_deps="opencl"
3550 procamp_vaapi_filter_deps="vaapi"
3551 program_opencl_filter_deps="opencl"
3552 pullup_filter_deps="gpl"
3553 removelogo_filter_deps="avcodec avformat swscale"
3554 repeatfields_filter_deps="gpl"
3555 resample_filter_deps="avresample"
3556 roberts_opencl_filter_deps="opencl"
3557 rubberband_filter_deps="librubberband"
3558 sab_filter_deps="gpl swscale"
3559 scale2ref_filter_deps="swscale"
3560 scale_filter_deps="swscale"
3561 scale_qsv_filter_deps="libmfx"
3562 select_filter_select="scene_sad"
3563 sharpness_vaapi_filter_deps="vaapi"
3564 showcqt_filter_deps="avcodec avformat swscale"
3565 showcqt_filter_suggest="libfontconfig libfreetype"
3566 showcqt_filter_select="fft"
3567 showfreqs_filter_deps="avcodec"
3568 showfreqs_filter_select="fft"
3569 showspatial_filter_select="fft"
3570 showspectrum_filter_deps="avcodec"
3571 showspectrum_filter_select="fft"
3572 showspectrumpic_filter_deps="avcodec"
3573 showspectrumpic_filter_select="fft"
3574 signature_filter_deps="gpl avcodec avformat"
3575 sinc_filter_select="rdft"
3576 smartblur_filter_deps="gpl swscale"
3577 sobel_opencl_filter_deps="opencl"
3578 sofalizer_filter_deps="libmysofa avcodec"
3579 sofalizer_filter_select="fft"
3580 spectrumsynth_filter_deps="avcodec"
3581 spectrumsynth_filter_select="fft"
3582 spp_filter_deps="gpl avcodec"
3583 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3584 sr_filter_deps="avformat swscale"
3585 sr_filter_select="dnn"
3586 stereo3d_filter_deps="gpl"
3587 subtitles_filter_deps="avformat avcodec libass"
3588 super2xsai_filter_deps="gpl"
3589 pixfmts_super2xsai_test_deps="super2xsai_filter"
3590 superequalizer_filter_select="rdft"
3591 surround_filter_select="rdft"
3592 tinterlace_filter_deps="gpl"
3593 tinterlace_merge_test_deps="tinterlace_filter"
3594 tinterlace_pad_test_deps="tinterlace_filter"
3595 tonemap_filter_deps="const_nan"
3596 tonemap_vaapi_filter_deps="vaapi VAProcFilterParameterBufferHDRToneMapping"
3597 tonemap_opencl_filter_deps="opencl const_nan"
3598 transpose_opencl_filter_deps="opencl"
3599 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3600 unsharp_opencl_filter_deps="opencl"
3601 uspp_filter_deps="gpl avcodec"
3602 vaguedenoiser_filter_deps="gpl"
3603 vidstabdetect_filter_deps="libvidstab"
3604 vidstabtransform_filter_deps="libvidstab"
3605 libvmaf_filter_deps="libvmaf pthreads"
3606 zmq_filter_deps="libzmq"
3607 zoompan_filter_deps="swscale"
3608 zscale_filter_deps="libzimg const_nan"
3609 scale_vaapi_filter_deps="vaapi"
3610 scale_vulkan_filter_deps="vulkan libglslang"
3611 vpp_qsv_filter_deps="libmfx"
3612 vpp_qsv_filter_select="qsvvpp"
3613 xfade_opencl_filter_deps="opencl"
3614 yadif_cuda_filter_deps="ffnvcodec"
3615 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3616
3617 # examples
3618 avio_list_dir_deps="avformat avutil"
3619 avio_reading_deps="avformat avcodec avutil"
3620 decode_audio_example_deps="avcodec avutil"
3621 decode_video_example_deps="avcodec avutil"
3622 demuxing_decoding_example_deps="avcodec avformat avutil"
3623 encode_audio_example_deps="avcodec avutil"
3624 encode_video_example_deps="avcodec avutil"
3625 extract_mvs_example_deps="avcodec avformat avutil"
3626 filter_audio_example_deps="avfilter avutil"
3627 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3628 filtering_video_example_deps="avfilter avcodec avformat avutil"
3629 http_multiclient_example_deps="avformat avutil fork"
3630 hw_decode_example_deps="avcodec avformat avutil"
3631 metadata_example_deps="avformat avutil"
3632 muxing_example_deps="avcodec avformat avutil swscale"
3633 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3634 remuxing_example_deps="avcodec avformat avutil"
3635 resampling_audio_example_deps="avutil swresample"
3636 scaling_video_example_deps="avutil swscale"
3637 transcode_aac_example_deps="avcodec avformat swresample"
3638 transcoding_example_deps="avfilter avcodec avformat avutil"
3639 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3640 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3641
3642 # EXTRALIBS_LIST
3643 cpu_init_extralibs="pthreads_extralibs"
3644 cws2fws_extralibs="zlib_extralibs"
3645
3646 # libraries, in any order
3647 avcodec_deps="avutil"
3648 avcodec_suggest="libm"
3649 avcodec_select="null_bsf"
3650 avdevice_deps="avformat avcodec avutil"
3651 avdevice_suggest="libm"
3652 avfilter_deps="avutil"
3653 avfilter_suggest="libm"
3654 avformat_deps="avcodec avutil"
3655 avformat_suggest="libm network zlib"
3656 avresample_deps="avutil"
3657 avresample_suggest="libm"
3658 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi vulkan videotoolbox corefoundation corevideo coremedia bcrypt"
3659 postproc_deps="avutil gpl"
3660 postproc_suggest="libm"
3661 swresample_deps="avutil"
3662 swresample_suggest="libm libsoxr"
3663 swscale_deps="avutil"
3664 swscale_suggest="libm"
3665
3666 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3667 avfilter_extralibs="pthreads_extralibs"
3668 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3669
3670 # programs
3671 ffmpeg_deps="avcodec avfilter avformat"
3672 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3673                hflip_filter null_filter
3674                transpose_filter trim_filter vflip_filter"
3675 ffmpeg_suggest="ole32 psapi shell32"
3676 ffplay_deps="avcodec avformat swscale swresample sdl2"
3677 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3678 ffplay_suggest="shell32"
3679 ffprobe_deps="avcodec avformat"
3680 ffprobe_suggest="shell32"
3681
3682 # documentation
3683 podpages_deps="perl"
3684 manpages_deps="perl pod2man"
3685 htmlpages_deps="perl"
3686 htmlpages_deps_any="makeinfo_html texi2html"
3687 txtpages_deps="perl makeinfo"
3688 doc_deps_any="manpages htmlpages podpages txtpages"
3689
3690 # default parameters
3691
3692 logfile="ffbuild/config.log"
3693
3694 # installation paths
3695 prefix_default="/usr/local"
3696 bindir_default='${prefix}/bin'
3697 datadir_default='${prefix}/share/ffmpeg'
3698 docdir_default='${prefix}/share/doc/ffmpeg'
3699 incdir_default='${prefix}/include'
3700 libdir_default='${prefix}/lib'
3701 mandir_default='${prefix}/share/man'
3702
3703 # toolchain
3704 ar_default="ar"
3705 cc_default="gcc"
3706 cxx_default="g++"
3707 host_cc_default="gcc"
3708 doxygen_default="doxygen"
3709 install="install"
3710 ln_s_default="ln -s -f"
3711 nm_default="nm -g"
3712 pkg_config_default=pkg-config
3713 ranlib_default="ranlib"
3714 strip_default="strip"
3715 version_script='--version-script'
3716 objformat="elf32"
3717 x86asmexe_default="nasm"
3718 windres_default="windres"
3719 striptype="direct"
3720
3721 # OS
3722 target_os_default=$(tolower $(uname -s))
3723 host_os=$target_os_default
3724
3725 # machine
3726 if test "$target_os_default" = aix; then
3727     arch_default=$(uname -p)
3728     strip_default="strip -X32_64"
3729     nm_default="nm -g -X32_64"
3730 else
3731     arch_default=$(uname -m)
3732 fi
3733 cpu="generic"
3734 intrinsics="none"
3735
3736 # configurable options
3737 enable $PROGRAM_LIST
3738 enable $DOCUMENT_LIST
3739 enable $EXAMPLE_LIST
3740 enable $(filter_out avresample $LIBRARY_LIST)
3741 enable stripping
3742
3743 enable asm
3744 enable debug
3745 enable doc
3746 enable faan faandct faanidct
3747 enable large_tests
3748 enable optimizations
3749 enable runtime_cpudetect
3750 enable safe_bitstream_reader
3751 enable static
3752 enable swscale_alpha
3753 enable valgrind_backtrace
3754
3755 sws_max_filter_size_default=256
3756 set_default sws_max_filter_size
3757
3758 # internal components are enabled by default
3759 enable $EXTRALIBS_LIST
3760
3761 # Avoid external, non-system, libraries getting enabled by dependency resolution
3762 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3763
3764 # build settings
3765 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3766 LIBPREF="lib"
3767 LIBSUF=".a"
3768 FULLNAME='$(NAME)$(BUILDSUF)'
3769 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3770 SLIBPREF="lib"
3771 SLIBSUF=".so"
3772 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3773 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3774 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3775 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3776 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3777 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3778 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3779
3780 asflags_filter=echo
3781 cflags_filter=echo
3782 ldflags_filter=echo
3783
3784 AS_C='-c'
3785 AS_O='-o $@'
3786 CC_C='-c'
3787 CC_E='-E -o $@'
3788 CC_O='-o $@'
3789 CXX_C='-c'
3790 CXX_O='-o $@'
3791 OBJCC_C='-c'
3792 OBJCC_E='-E -o $@'
3793 OBJCC_O='-o $@'
3794 X86ASM_O='-o $@'
3795 LD_O='-o $@'
3796 LD_LIB='-l%'
3797 LD_PATH='-L'
3798 HOSTCC_C='-c'
3799 HOSTCC_E='-E -o $@'
3800 HOSTCC_O='-o $@'
3801 HOSTLD_O='-o $@'
3802 NVCC_C='-c'
3803 NVCC_O='-o $@'
3804
3805 host_extralibs='-lm'
3806 host_cflags_filter=echo
3807 host_ldflags_filter=echo
3808
3809 target_path='$(CURDIR)'
3810
3811 # since the object filename is not given with the -MM flag, the compiler
3812 # is only able to print the basename, and we must add the path ourselves
3813 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3814 DEPFLAGS='-MM'
3815
3816 mkdir -p ffbuild
3817
3818 # find source path
3819 if test -f configure; then
3820     source_path=.
3821 elif test -f src/configure; then
3822     source_path=src
3823 else
3824     source_path=$(cd $(dirname "$0"); pwd)
3825     case "$source_path" in
3826         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3827     esac
3828     test -e "$source_path/config.h" &&
3829         die "Out of tree builds are impossible with config.h in source dir."
3830 fi
3831
3832 for v in "$@"; do
3833     r=${v#*=}
3834     l=${v%"$r"}
3835     r=$(sh_quote "$r")
3836     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3837 done
3838
3839 find_things_extern(){
3840     thing=$1
3841     pattern=$2
3842     file=$source_path/$3
3843     out=${4:-$thing}
3844     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3845 }
3846
3847 find_filters_extern(){
3848     file=$source_path/$1
3849     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3850 }
3851
3852 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3853 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3854 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3855 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3856 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3857 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3858 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3859 CODEC_LIST="
3860     $ENCODER_LIST
3861     $DECODER_LIST
3862 "
3863 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3864 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3865 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3866 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3867
3868 AVCODEC_COMPONENTS_LIST="
3869     $BSF_LIST
3870     $DECODER_LIST
3871     $ENCODER_LIST
3872     $HWACCEL_LIST
3873     $PARSER_LIST
3874 "
3875
3876 AVDEVICE_COMPONENTS_LIST="
3877     $INDEV_LIST
3878     $OUTDEV_LIST
3879 "
3880
3881 AVFILTER_COMPONENTS_LIST="
3882     $FILTER_LIST
3883 "
3884
3885 AVFORMAT_COMPONENTS_LIST="
3886     $DEMUXER_LIST
3887     $MUXER_LIST
3888     $PROTOCOL_LIST
3889 "
3890
3891 ALL_COMPONENTS="
3892     $AVCODEC_COMPONENTS_LIST
3893     $AVDEVICE_COMPONENTS_LIST
3894     $AVFILTER_COMPONENTS_LIST
3895     $AVFORMAT_COMPONENTS_LIST
3896 "
3897
3898 for n in $COMPONENT_LIST; do
3899     v=$(toupper ${n%s})_LIST
3900     eval enable \$$v
3901     eval ${n}_if_any="\$$v"
3902 done
3903
3904 enable $ARCH_EXT_LIST
3905
3906 die_unknown(){
3907     echo "Unknown option \"$1\"."
3908     echo "See $0 --help for available options."
3909     exit 1
3910 }
3911
3912 print_in_columns() {
3913     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3914     {
3915         num_cols = width > col_width ? int(width / col_width) : 1;
3916         num_rows = int((NF + num_cols-1) / num_cols);
3917         y = x = 1;
3918         for (y = 1; y <= num_rows; y++) {
3919             i = y;
3920             for (x = 1; x <= num_cols; x++) {
3921                 if (i <= NF) {
3922                   line = sprintf("%s%-" col_width "s", line, $i);
3923                 }
3924                 i = i + num_rows;
3925             }
3926             print line; line = "";
3927         }
3928     }' | sed 's/ *$//'
3929 }
3930
3931 show_list() {
3932     suffix=_$1
3933     shift
3934     echo $* | sed s/$suffix//g | print_in_columns
3935     exit 0
3936 }
3937
3938 rand_list(){
3939     IFS=', '
3940     set -- $*
3941     unset IFS
3942     for thing; do
3943         comp=${thing%:*}
3944         prob=${thing#$comp}
3945         prob=${prob#:}
3946         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3947         echo "prob ${prob:-0.5}"
3948         printf '%s\n' $comp
3949     done
3950 }
3951
3952 do_random(){
3953     action=$1
3954     shift
3955     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3956     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3957 }
3958
3959 for opt do
3960     optval="${opt#*=}"
3961     case "$opt" in
3962         --extra-ldflags=*)
3963             add_ldflags $optval
3964         ;;
3965         --extra-ldexeflags=*)
3966             add_ldexeflags $optval
3967         ;;
3968         --extra-ldsoflags=*)
3969             add_ldsoflags $optval
3970         ;;
3971         --extra-ldlibflags=*)
3972             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3973                  "removed in the future. Use --extra-ldsoflags instead."
3974             add_ldsoflags $optval
3975         ;;
3976         --extra-libs=*)
3977             add_extralibs $optval
3978         ;;
3979         --disable-devices)
3980             disable $INDEV_LIST $OUTDEV_LIST
3981         ;;
3982         --enable-debug=*)
3983             debuglevel="$optval"
3984         ;;
3985         --disable-programs)
3986             disable $PROGRAM_LIST
3987         ;;
3988         --disable-everything)
3989             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3990         ;;
3991         --disable-all)
3992             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3993             disable $LIBRARY_LIST $PROGRAM_LIST doc
3994             enable avutil
3995         ;;
3996         --enable-random|--disable-random)
3997             action=${opt%%-random}
3998             do_random ${action#--} $COMPONENT_LIST
3999         ;;
4000         --enable-random=*|--disable-random=*)
4001             action=${opt%%-random=*}
4002             do_random ${action#--} $optval
4003         ;;
4004         --enable-sdl)
4005             enable sdl2
4006         ;;
4007         --enable-*=*|--disable-*=*)
4008             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
4009             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
4010             eval list=\$$(toupper $thing)_LIST
4011             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
4012             list=$(filter "$name" $list)
4013             [ "$list" = "" ] && warn "Option $opt did not match anything"
4014             test $action = enable && warn_if_gets_disabled $list
4015             $action $list
4016         ;;
4017         --enable-yasm|--disable-yasm)
4018             warn "The ${opt} option is only provided for compatibility and will be\n"\
4019                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
4020             test $opt = --enable-yasm && x86asm=yes || x86asm=no
4021         ;;
4022         --yasmexe=*)
4023             warn "The --yasmexe option is only provided for compatibility and will be\n"\
4024                  "removed in the future. Use --x86asmexe instead."
4025             x86asmexe="$optval"
4026         ;;
4027         --enable-?*|--disable-?*)
4028             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
4029             if is_in $option $COMPONENT_LIST; then
4030                 test $action = disable && action=unset
4031                 eval $action \$$(toupper ${option%s})_LIST
4032             elif is_in $option $CMDLINE_SELECT; then
4033                 $action $option
4034             else
4035                 die_unknown $opt
4036             fi
4037         ;;
4038         --list-*)
4039             NAME="${opt#--list-}"
4040             is_in $NAME $COMPONENT_LIST || die_unknown $opt
4041             NAME=${NAME%s}
4042             eval show_list $NAME \$$(toupper $NAME)_LIST
4043         ;;
4044         --help|-h) show_help
4045         ;;
4046         --quiet|-q) quiet=yes
4047         ;;
4048         --fatal-warnings) enable fatal_warnings
4049         ;;
4050         --libfuzzer=*)
4051             libfuzzer_path="$optval"
4052         ;;
4053         *)
4054             optname="${opt%%=*}"
4055             optname="${optname#--}"
4056             optname=$(echo "$optname" | sed 's/-/_/g')
4057             if is_in $optname $CMDLINE_SET; then
4058                 eval $optname='$optval'
4059             elif is_in $optname $CMDLINE_APPEND; then
4060                 append $optname "$optval"
4061             else
4062                 die_unknown $opt
4063             fi
4064         ;;
4065     esac
4066 done
4067
4068 for e in $env; do
4069     eval "export $e"
4070 done
4071
4072 if disabled autodetect; then
4073
4074     # Unless iconv is explicitely disabled by the user, we still want to probe
4075     # for the iconv from the libc.
4076     disabled iconv || enable libc_iconv
4077
4078     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4079     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4080 fi
4081 # Mark specifically enabled, but normally autodetected libraries as requested.
4082 for lib in $AUTODETECT_LIBS; do
4083     enabled $lib && request $lib
4084 done
4085 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4086 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4087 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4088
4089 disabled logging && logfile=/dev/null
4090
4091 # command line configuration sanity checks
4092
4093 # we need to build at least one lib type
4094 if ! enabled_any static shared; then
4095     cat <<EOF
4096 At least one library type must be built.
4097 Specify --enable-static to build the static libraries or --enable-shared to
4098 build the shared libraries as well. To only build the shared libraries specify
4099 --disable-static in addition to --enable-shared.
4100 EOF
4101     exit 1
4102 fi
4103
4104 die_license_disabled() {
4105     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4106 }
4107
4108 die_license_disabled_gpl() {
4109     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4110 }
4111
4112 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4113 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4114
4115 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4116 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4117
4118 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4119
4120 if enabled nonfree; then
4121     license="nonfree and unredistributable"
4122 elif enabled gplv3; then
4123     license="GPL version 3 or later"
4124 elif enabled lgplv3; then
4125     license="LGPL version 3 or later"
4126 elif enabled gpl; then
4127     license="GPL version 2 or later"
4128 else
4129     license="LGPL version 2.1 or later"
4130 fi
4131
4132 enabled_all gnutls openssl &&
4133     die "GnuTLS and OpenSSL must not be enabled at the same time."
4134
4135 enabled_all gnutls mbedtls &&
4136     die "GnuTLS and mbedTLS must not be enabled at the same time."
4137
4138 enabled_all openssl mbedtls &&
4139     die "OpenSSL and mbedTLS must not be enabled at the same time."
4140
4141 # Disable all the library-specific components if the library itself
4142 # is disabled, see AVCODEC_LIST and following _LIST variables.
4143
4144 disable_components(){
4145     disabled ${1} && disable $(
4146         eval components="\$$(toupper ${1})_COMPONENTS"
4147         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4148     )
4149 }
4150
4151 map 'disable_components $v' $LIBRARY_LIST
4152
4153 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4154 set >> $logfile
4155
4156 test -n "$valgrind" && toolchain="valgrind-memcheck"
4157
4158 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4159     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4160     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4161 }
4162
4163 case "$toolchain" in
4164     *-asan)
4165         cc_default="${toolchain%-asan}"
4166         add_cflags  -fsanitize=address
4167         add_ldflags -fsanitize=address
4168     ;;
4169     *-msan)
4170         cc_default="${toolchain%-msan}"
4171         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4172         add_ldflags -fsanitize=memory
4173     ;;
4174     *-tsan)
4175         cc_default="${toolchain%-tsan}"
4176         add_cflags  -fsanitize=thread
4177         add_ldflags -fsanitize=thread
4178         case "$toolchain" in
4179             gcc-tsan)
4180                 add_cflags  -fPIC
4181                 add_ldflags -fPIC
4182                 ;;
4183         esac
4184     ;;
4185     *-usan)
4186         cc_default="${toolchain%-usan}"
4187         add_cflags  -fsanitize=undefined
4188         add_ldflags -fsanitize=undefined
4189     ;;
4190     valgrind-*)
4191         target_exec_default="valgrind"
4192         case "$toolchain" in
4193             valgrind-massif)
4194                 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"
4195                 ;;
4196             valgrind-memcheck)
4197                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4198                 ;;
4199         esac
4200     ;;
4201     msvc)
4202         # Check whether the current MSVC version needs the C99 converter.
4203         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4204         # support enough of C99 to build ffmpeg. Default to the new
4205         # behaviour if the regexp was unable to match anything, since this
4206         # successfully parses the version number of existing supported
4207         # versions that require the converter (MSVC 2010 and 2012).
4208         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4209         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4210             cc_default="cl.exe"
4211             cxx_default="cl.exe"
4212         else
4213             die "Unsupported MSVC version (2013 or newer required)"
4214         fi
4215         ld_default="$source_path/compat/windows/mslink"
4216         nm_default="dumpbin.exe -symbols"
4217         ar_default="lib.exe"
4218         case "$arch" in
4219         aarch64|arm64)
4220             as_default="armasm64.exe"
4221             ;;
4222         arm*)
4223             as_default="armasm.exe"
4224             ;;
4225         esac
4226         target_os_default="win32"
4227         # Use a relative path for TMPDIR. This makes sure all the
4228         # ffconf temp files are written with a relative path, avoiding
4229         # issues with msys/win32 path conversion for MSVC parameters
4230         # such as -Fo<file> or -out:<file>.
4231         TMPDIR=.
4232     ;;
4233     icl)
4234         cc_default="icl"
4235         ld_default="xilink"
4236         nm_default="dumpbin -symbols"
4237         ar_default="xilib"
4238         target_os_default="win32"
4239         TMPDIR=.
4240     ;;
4241     gcov)
4242         add_cflags  -fprofile-arcs -ftest-coverage
4243         add_ldflags -fprofile-arcs -ftest-coverage
4244     ;;
4245     llvm-cov)
4246         add_cflags -fprofile-arcs -ftest-coverage
4247         add_ldflags --coverage
4248     ;;
4249     hardened)
4250         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4251         add_cflags   -fno-strict-overflow -fstack-protector-all
4252         add_ldflags  -Wl,-z,relro -Wl,-z,now
4253         add_cflags   -fPIE
4254         add_ldexeflags -fPIE -pie
4255     ;;
4256     ?*)
4257         die "Unknown toolchain $toolchain"
4258     ;;
4259 esac
4260
4261 if test -n "$cross_prefix"; then
4262     test -n "$arch" && test -n "$target_os" ||
4263         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4264     enable cross_compile
4265 fi
4266
4267 set_default target_os
4268 if test "$target_os" = android; then
4269     cc_default="clang"
4270 fi
4271
4272 ar_default="${cross_prefix}${ar_default}"
4273 cc_default="${cross_prefix}${cc_default}"
4274 cxx_default="${cross_prefix}${cxx_default}"
4275 nm_default="${cross_prefix}${nm_default}"
4276 pkg_config_default="${cross_prefix}${pkg_config_default}"
4277 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4278     ranlib_default="${cross_prefix}${ranlib_default} -D"
4279 else
4280     ranlib_default="${cross_prefix}${ranlib_default}"
4281 fi
4282 strip_default="${cross_prefix}${strip_default}"
4283 windres_default="${cross_prefix}${windres_default}"
4284
4285 sysinclude_default="${sysroot}/usr/include"
4286
4287 if enabled cuda_sdk; then
4288     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4289     enable cuda_nvcc
4290 fi
4291
4292 if enabled cuda_nvcc; then
4293     nvcc_default="nvcc"
4294     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4295 else
4296     nvcc_default="clang"
4297     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4298     NVCC_C=""
4299 fi
4300
4301 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4302     target_exec x86asmexe nvcc
4303 enabled cross_compile || host_cc_default=$cc
4304 set_default host_cc
4305
4306 pkg_config_fail_message=""
4307 if ! $pkg_config --version >/dev/null 2>&1; then
4308     warn "$pkg_config not found, library detection may fail."
4309     pkg_config=false
4310 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4311     pkg_config_fail_message="
4312 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4313 fi
4314
4315 if test $doxygen != $doxygen_default && \
4316   ! $doxygen --version >/dev/null 2>&1; then
4317     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4318 fi
4319
4320 exesuf() {
4321     case $1 in
4322         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4323     esac
4324 }
4325
4326 EXESUF=$(exesuf $target_os)
4327 HOSTEXESUF=$(exesuf $host_os)
4328
4329 # set temporary file name
4330 : ${TMPDIR:=$TEMPDIR}
4331 : ${TMPDIR:=$TMP}
4332 : ${TMPDIR:=/tmp}
4333
4334 if [ -n "$tempprefix" ] ; then
4335     mktemp(){
4336         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4337         echo "$tmpname"
4338         mkdir "$tmpname"
4339     }
4340 elif ! test_cmd mktemp -u XXXXXX; then
4341     # simple replacement for missing mktemp
4342     # NOT SAFE FOR GENERAL USE
4343     mktemp(){
4344         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4345         echo "$tmpname"
4346         mkdir "$tmpname"
4347     }
4348 fi
4349
4350 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4351     die "Unable to create temporary directory in $TMPDIR."
4352
4353 tmpfile(){
4354     tmp="${FFTMPDIR}/test"$2
4355     (set -C; exec > $tmp) 2> /dev/null ||
4356         die "Unable to create temporary file in $FFTMPDIR."
4357     eval $1=$tmp
4358 }
4359
4360 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4361 trap 'exit 2' INT
4362
4363 tmpfile TMPASM .asm
4364 tmpfile TMPC   .c
4365 tmpfile TMPCPP .cpp
4366 tmpfile TMPE   $EXESUF
4367 tmpfile TMPH   .h
4368 tmpfile TMPM   .m
4369 tmpfile TMPCU  .cu
4370 tmpfile TMPO   .o
4371 tmpfile TMPS   .S
4372 tmpfile TMPSH  .sh
4373 tmpfile TMPV   .ver
4374
4375 unset -f mktemp
4376
4377 chmod +x $TMPE
4378
4379 # make sure we can execute files in $TMPDIR
4380 cat > $TMPSH 2>> $logfile <<EOF
4381 #! /bin/sh
4382 EOF
4383 chmod +x $TMPSH >> $logfile 2>&1
4384 if ! $TMPSH >> $logfile 2>&1; then
4385     cat <<EOF
4386 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4387 variable to another directory and make sure that it is not mounted noexec.
4388 EOF
4389     die "Sanity test failed."
4390 fi
4391
4392 armasm_flags(){
4393     for flag; do
4394         case $flag in
4395             # Filter out MSVC cl.exe options from cflags that shouldn't
4396             # be passed to gas-preprocessor
4397             -M[TD]*)                                            ;;
4398             *)                  echo $flag                      ;;
4399         esac
4400    done
4401 }
4402
4403 cparser_flags(){
4404     for flag; do
4405         case $flag in
4406             -Wno-switch)             echo -Wno-switch-enum ;;
4407             -Wno-format-zero-length) ;;
4408             -Wdisabled-optimization) ;;
4409             -Wno-pointer-sign)       echo -Wno-other ;;
4410             *)                       echo $flag ;;
4411         esac
4412     done
4413 }
4414
4415 msvc_common_flags(){
4416     for flag; do
4417         case $flag in
4418             # In addition to specifying certain flags under the compiler
4419             # specific filters, they must be specified here as well or else the
4420             # generic catch all at the bottom will print the original flag.
4421             -Wall)                ;;
4422             -Wextra)              ;;
4423             -std=c99)             ;;
4424             # Common flags
4425             -fomit-frame-pointer) ;;
4426             -g)                   echo -Z7 ;;
4427             -fno-math-errno)      ;;
4428             -fno-common)          ;;
4429             -fno-signed-zeros)    ;;
4430             -fPIC)                ;;
4431             -mthumb)              ;;
4432             -march=*)             ;;
4433             -lz)                  echo zlib.lib ;;
4434             -lx264)               echo libx264.lib ;;
4435             -lstdc++)             ;;
4436             -l*)                  echo ${flag#-l}.lib ;;
4437             -LARGEADDRESSAWARE)   echo $flag ;;
4438             -L*)                  echo -libpath:${flag#-L} ;;
4439             *)                    echo $flag ;;
4440         esac
4441     done
4442 }
4443
4444 msvc_flags(){
4445     msvc_common_flags "$@"
4446     for flag; do
4447         case $flag in
4448             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4449                                        -wd4554 ;;
4450             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4451                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4452                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4453                                        -wd4307 \
4454                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4455         esac
4456     done
4457 }
4458
4459 icl_flags(){
4460     msvc_common_flags "$@"
4461     for flag; do
4462         case $flag in
4463             # Despite what Intel's documentation says -Wall, which is supported
4464             # on Windows, does enable remarks so disable them here.
4465             -Wall)                echo $flag -Qdiag-disable:remark ;;
4466             -std=c99)             echo -Qstd=c99 ;;
4467             -flto)                echo -ipo ;;
4468         esac
4469     done
4470 }
4471
4472 icc_flags(){
4473     for flag; do
4474         case $flag in
4475             -flto)                echo -ipo ;;
4476             *)                    echo $flag ;;
4477         esac
4478     done
4479 }
4480
4481 suncc_flags(){
4482     for flag; do
4483         case $flag in
4484             -march=*|-mcpu=*)
4485                 case "${flag#*=}" in
4486                     native)                   echo -xtarget=native       ;;
4487                     v9|niagara)               echo -xarch=sparc          ;;
4488                     ultrasparc)               echo -xarch=sparcvis       ;;
4489                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4490                     i586|pentium)             echo -xchip=pentium        ;;
4491                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4492                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4493                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4494                     pentium4*)          echo -xtarget=pentium4           ;;
4495                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4496                     *-sse3)             echo -xarch=sse3                 ;;
4497                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4498                     bonnell)                   echo -xarch=ssse3         ;;
4499                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4500                     westmere)                  echo -xtarget=westmere    ;;
4501                     silvermont)                echo -xarch=sse4_2        ;;
4502                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4503                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4504                                                echo -xarch=avx           ;;
4505                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4506                     btver1)                    echo -xarch=amdsse4a      ;;
4507                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4508                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4509                     k8|opteron|athlon64|athlon-fx)
4510                                                echo -xarch=sse2a         ;;
4511                     athlon*)                   echo -xarch=pentium_proa  ;;
4512                 esac
4513                 ;;
4514             -std=c99)             echo -xc99              ;;
4515             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4516             -fPIC)                echo -KPIC -xcode=pic32 ;;
4517             -W*,*)                echo $flag              ;;
4518             -f*-*|-W*|-mimpure-text)                      ;;
4519             -shared)              echo -G                 ;;
4520             *)                    echo $flag              ;;
4521         esac
4522     done
4523 }
4524
4525 probe_cc(){
4526     pfx=$1
4527     _cc=$2
4528     first=$3
4529
4530     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4531     unset _ld_o _ldflags _ld_lib _ld_path
4532     unset _depflags _DEPCMD _DEPFLAGS
4533     _flags_filter=echo
4534
4535     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4536         true # no-op to avoid reading stdin in following checks
4537     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4538         _type=llvm_gcc
4539         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4540         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4541         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4542         _cflags_speed='-O3'
4543         _cflags_size='-Os'
4544     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4545         _type=gcc
4546         gcc_version=$($_cc --version | head -n1)
4547         gcc_basever=$($_cc -dumpversion)
4548         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4549         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4550         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4551         case $gcc_basever in
4552             2) ;;
4553             2.*) ;;
4554             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4555         esac
4556         if [ "$first" = true ]; then
4557             case $gcc_basever in
4558                 4.2*)
4559                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4560             esac
4561         fi
4562         _cflags_speed='-O3'
4563         _cflags_size='-Os'
4564     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4565         _type=icc
4566         _ident=$($_cc --version | head -n1)
4567         _depflags='-MMD'
4568         _cflags_speed='-O3'
4569         _cflags_size='-Os'
4570         _cflags_noopt='-O1'
4571         _flags_filter=icc_flags
4572     elif $_cc -v 2>&1 | grep -q xlc; then
4573         _type=xlc
4574         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4575         _cflags_speed='-O5'
4576         _cflags_size='-O5 -qcompact'
4577     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4578         test -d "$sysroot" || die "No valid sysroot specified."
4579         _type=armcc
4580         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4581         armcc_conf="$PWD/armcc.conf"
4582         $_cc --arm_linux_configure                 \
4583              --arm_linux_config_file="$armcc_conf" \
4584              --configure_sysroot="$sysroot"        \
4585              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4586              die "Error creating armcc configuration file."
4587         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4588         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4589         as_default="${cross_prefix}gcc"
4590         _depflags='-MMD'
4591         _cflags_speed='-O3'
4592         _cflags_size='-Os'
4593     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4594         _type=clang
4595         _ident=$($_cc --version 2>/dev/null | head -n1)
4596         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4597         _cflags_speed='-O3'
4598         _cflags_size='-Oz'
4599     elif $_cc -V 2>&1 | grep -q Sun; then
4600         _type=suncc
4601         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4602         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4603         _DEPFLAGS='-xM1 -xc99'
4604         _ldflags='-std=c99'
4605         _cflags_speed='-O5'
4606         _cflags_size='-O5 -xspace'
4607         _flags_filter=suncc_flags
4608     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4609         _type=pathscale
4610         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4611         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4612         _cflags_speed='-O2'
4613         _cflags_size='-Os'
4614         _flags_filter='filter_out -Wdisabled-optimization'
4615     elif $_cc -v 2>&1 | grep -q Open64; then
4616         _type=open64
4617         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4618         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4619         _cflags_speed='-O2'
4620         _cflags_size='-Os'
4621         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4622     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4623         _type=armasm
4624         _ident=$($_cc | head -n1)
4625         # 4509: "This form of conditional instruction is deprecated"
4626         _flags="-nologo -ignore 4509"
4627         _flags_filter=armasm_flags
4628     elif $_cc 2>&1 | grep -q Intel; then
4629         _type=icl
4630         _ident=$($_cc 2>&1 | head -n1)
4631         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4632         # Not only is O3 broken on 13.x+ but it is slower on all previous
4633         # versions (tested) as well.
4634         _cflags_speed="-O2"
4635         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4636         if $_cc 2>&1 | grep -q Linker; then
4637             _ld_o='-out:$@'
4638         else
4639             _ld_o='-Fe$@'
4640         fi
4641         _cc_o='-Fo$@'
4642         _cc_e='-P'
4643         _flags_filter=icl_flags
4644         _ld_lib='lib%.a'
4645         _ld_path='-libpath:'
4646         # -Qdiag-error to make icl error when seeing certain unknown arguments
4647         _flags='-nologo -Qdiag-error:4044,10157'
4648         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4649         # with MSVC which enables it by default.
4650         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4651         disable stripping
4652     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4653         # lld can emulate multiple different linkers; in ms link.exe mode,
4654         # the -? parameter gives the help output which contains an identifyable
4655         # string, while it gives an error in other modes.
4656         _type=lld-link
4657         # The link.exe mode doesn't have a switch for getting the version,
4658         # but we can force it back to gnu mode and get the version from there.
4659         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4660         _ld_o='-out:$@'
4661         _flags_filter=msvc_flags
4662         _ld_lib='lib%.a'
4663         _ld_path='-libpath:'
4664     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4665         _type=msvc
4666         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4667         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4668         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4669         _cflags_speed="-O2"
4670         _cflags_size="-O1"
4671         _cflags_noopt="-O1"
4672         if $_cc -nologo- 2>&1 | grep -q Linker; then
4673             _ld_o='-out:$@'
4674         else
4675             _ld_o='-Fe$@'
4676         fi
4677         _cc_o='-Fo$@'
4678         _cc_e='-P -Fi$@'
4679         _flags_filter=msvc_flags
4680         _ld_lib='lib%.a'
4681         _ld_path='-libpath:'
4682         _flags='-nologo'
4683         disable stripping
4684     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4685         _type=cparser
4686         _ident=$($_cc --version | head -n1)
4687         _depflags='-MMD'
4688         _cflags_speed='-O4'
4689         _cflags_size='-O2'
4690         _flags_filter=cparser_flags
4691     fi
4692
4693     eval ${pfx}_type=\$_type
4694     eval ${pfx}_ident=\$_ident
4695 }
4696
4697 set_ccvars(){
4698     eval ${1}_C=\${_cc_c-\${${1}_C}}
4699     eval ${1}_E=\${_cc_e-\${${1}_E}}
4700     eval ${1}_O=\${_cc_o-\${${1}_O}}
4701
4702     if [ -n "$_depflags" ]; then
4703         eval ${1}_DEPFLAGS=\$_depflags
4704     else
4705         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4706         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4707         eval DEP${1}FLAGS=\$_flags
4708     fi
4709 }
4710
4711 probe_cc cc "$cc" "true"
4712 cflags_filter=$_flags_filter
4713 cflags_speed=$_cflags_speed
4714 cflags_size=$_cflags_size
4715 cflags_noopt=$_cflags_noopt
4716 add_cflags $_flags $_cflags
4717 cc_ldflags=$_ldflags
4718 set_ccvars CC
4719 set_ccvars CXX
4720
4721 probe_cc hostcc "$host_cc"
4722 host_cflags_filter=$_flags_filter
4723 host_cflags_speed=$_cflags_speed
4724 add_host_cflags  $_flags $_cflags
4725 set_ccvars HOSTCC
4726
4727 test -n "$cc_type" && enable $cc_type ||
4728     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4729
4730 : ${as_default:=$cc}
4731 : ${objcc_default:=$cc}
4732 : ${dep_cc_default:=$cc}
4733 : ${ld_default:=$cc}
4734 : ${host_ld_default:=$host_cc}
4735 set_default ar as objcc dep_cc ld ln_s host_ld windres
4736
4737 probe_cc as "$as"
4738 asflags_filter=$_flags_filter
4739 add_asflags $_flags $_cflags
4740 set_ccvars AS
4741
4742 probe_cc objcc "$objcc"
4743 objcflags_filter=$_flags_filter
4744 add_objcflags $_flags $_cflags
4745 set_ccvars OBJC
4746
4747 probe_cc ld "$ld"
4748 ldflags_filter=$_flags_filter
4749 add_ldflags $_flags $_ldflags
4750 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4751 LD_O=${_ld_o-$LD_O}
4752 LD_LIB=${_ld_lib-$LD_LIB}
4753 LD_PATH=${_ld_path-$LD_PATH}
4754
4755 probe_cc hostld "$host_ld"
4756 host_ldflags_filter=$_flags_filter
4757 add_host_ldflags $_flags $_ldflags
4758 HOSTLD_O=${_ld_o-$HOSTLD_O}
4759
4760 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4761     probe_cc depcc "$dep_cc"
4762     CCDEP=${_DEPCMD:-$DEPCMD}
4763     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4764     DEPCCFLAGS=$_flags
4765 fi
4766
4767 if $ar 2>&1 | grep -q Microsoft; then
4768     arflags="-nologo"
4769     ar_o='-out:$@'
4770 elif $ar 2>&1 | grep -q "\[D\] "; then
4771     arflags="rcD"
4772     ar_o='$@'
4773 else
4774     arflags="rc"
4775     ar_o='$@'
4776 fi
4777
4778 add_cflags $extra_cflags
4779 add_cxxflags $extra_cxxflags
4780 add_objcflags $extra_objcflags
4781 add_asflags $extra_cflags
4782
4783 if test -n "$sysroot"; then
4784     case "$cc_type" in
4785         gcc|llvm_gcc|clang)
4786             add_cppflags --sysroot="$sysroot"
4787             add_ldflags --sysroot="$sysroot"
4788         ;;
4789     esac
4790 fi
4791
4792 if test "$cpu" = host; then
4793     enabled cross_compile &&
4794         die "--cpu=host makes no sense when cross-compiling."
4795
4796     case "$cc_type" in
4797         gcc|llvm_gcc)
4798             check_native(){
4799                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4800                 sed -n "/cc1.*$1=/{
4801                             s/.*$1=\\([^ ]*\\).*/\\1/
4802                             p
4803                             q
4804                         }" $TMPE
4805             }
4806             cpu=$(check_native -march || check_native -mcpu)
4807         ;;
4808         clang)
4809             check_native(){
4810                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4811                 sed -n "/cc1.*-target-cpu /{
4812                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4813                             p
4814                             q
4815                         }" $TMPE
4816             }
4817             cpu=$(check_native -march)
4818         ;;
4819     esac
4820
4821     test "${cpu:-host}" = host &&
4822         die "--cpu=host not supported with compiler $cc"
4823 fi
4824
4825 # Deal with common $arch aliases
4826 case "$arch" in
4827     aarch64|arm64)
4828         arch="aarch64"
4829     ;;
4830     arm*|iPad*|iPhone*)
4831         arch="arm"
4832     ;;
4833     mips*|IP*)
4834         case "$arch" in
4835         *el)
4836             add_cppflags -EL
4837             add_ldflags -EL
4838         ;;
4839         *eb)
4840             add_cppflags -EB
4841             add_ldflags -EB
4842         ;;
4843         esac
4844         arch="mips"
4845     ;;
4846     parisc*|hppa*)
4847         arch="parisc"
4848     ;;
4849     "Power Macintosh"|ppc*|powerpc*)
4850         arch="ppc"
4851     ;;
4852     s390|s390x)
4853         arch="s390"
4854     ;;
4855     sh4|sh)
4856         arch="sh4"
4857     ;;
4858     sun4*|sparc*)
4859         arch="sparc"
4860     ;;
4861     tilegx|tile-gx)
4862         arch="tilegx"
4863     ;;
4864     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4865         arch="x86"
4866     ;;
4867 esac
4868
4869 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4870 enable $arch
4871
4872 # Add processor-specific flags
4873 if enabled aarch64; then
4874
4875     case $cpu in
4876         armv*)
4877             cpuflags="-march=$cpu"
4878         ;;
4879         *)
4880             cpuflags="-mcpu=$cpu"
4881         ;;
4882     esac
4883
4884 elif enabled alpha; then
4885
4886     cpuflags="-mcpu=$cpu"
4887
4888 elif enabled arm; then
4889
4890     check_arm_arch() {
4891         test_cpp_condition stddef.h \
4892             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4893             $cpuflags
4894     }
4895
4896     probe_arm_arch() {
4897         if   check_arm_arch 4;        then echo armv4
4898         elif check_arm_arch 4T;       then echo armv4t
4899         elif check_arm_arch 5;        then echo armv5
4900         elif check_arm_arch 5E;       then echo armv5e
4901         elif check_arm_arch 5T;       then echo armv5t
4902         elif check_arm_arch 5TE;      then echo armv5te
4903         elif check_arm_arch 5TEJ;     then echo armv5te
4904         elif check_arm_arch 6;        then echo armv6
4905         elif check_arm_arch 6J;       then echo armv6j
4906         elif check_arm_arch 6K;       then echo armv6k
4907         elif check_arm_arch 6Z;       then echo armv6z
4908         elif check_arm_arch 6KZ;      then echo armv6zk
4909         elif check_arm_arch 6ZK;      then echo armv6zk
4910         elif check_arm_arch 6T2;      then echo armv6t2
4911         elif check_arm_arch 7;        then echo armv7
4912         elif check_arm_arch 7A  7_A;  then echo armv7-a
4913         elif check_arm_arch 7S;       then echo armv7-a
4914         elif check_arm_arch 7R  7_R;  then echo armv7-r
4915         elif check_arm_arch 7M  7_M;  then echo armv7-m
4916         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4917         elif check_arm_arch 8A  8_A;  then echo armv8-a
4918         fi
4919     }
4920
4921     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4922
4923     case $cpu in
4924         armv*)
4925             cpuflags="-march=$cpu"
4926             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4927         ;;
4928         *)
4929             cpuflags="-mcpu=$cpu"
4930             case $cpu in
4931                 cortex-a*)                               subarch=armv7a  ;;
4932                 cortex-r*)                               subarch=armv7r  ;;
4933                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4934                 arm11*)                                  subarch=armv6   ;;
4935                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4936                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4937                 *)                             subarch=$(probe_arm_arch) ;;
4938             esac
4939         ;;
4940     esac
4941
4942     case "$subarch" in
4943         armv5t*)    enable fast_clz                ;;
4944         armv[6-8]*)
4945             enable fast_clz
4946             disabled fast_unaligned || enable fast_unaligned
4947             ;;
4948     esac
4949
4950 elif enabled avr32; then
4951
4952     case $cpu in
4953         ap7[02]0[0-2])
4954             subarch="avr32_ap"
4955             cpuflags="-mpart=$cpu"
4956         ;;
4957         ap)
4958             subarch="avr32_ap"
4959             cpuflags="-march=$cpu"
4960         ;;
4961         uc3[ab]*)
4962             subarch="avr32_uc"
4963             cpuflags="-mcpu=$cpu"
4964         ;;
4965         uc)
4966             subarch="avr32_uc"
4967             cpuflags="-march=$cpu"
4968         ;;
4969     esac
4970
4971 elif enabled bfin; then
4972
4973     cpuflags="-mcpu=$cpu"
4974
4975 elif enabled mips; then
4976
4977     cpuflags="-march=$cpu"
4978
4979     if [ "$cpu" != "generic" ]; then
4980         disable mips32r2
4981         disable mips32r5
4982         disable mips64r2
4983         disable mips32r6