avformat/oggdec: Initialize return value from ogg_read_page() and check it everywhere
[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-mediafoundation enable encoding via MediaFoundation [auto]
308   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
309   --enable-openal          enable OpenAL 1.1 capture support [no]
310   --enable-opencl          enable OpenCL processing [no]
311   --enable-opengl          enable OpenGL rendering [no]
312   --enable-openssl         enable openssl, needed for https support
313                            if gnutls, libtls or mbedtls is not used [no]
314   --enable-pocketsphinx    enable PocketSphinx, needed for asr filter [no]
315   --disable-sndio          disable sndio support [autodetect]
316   --disable-schannel       disable SChannel SSP, needed for TLS support on
317                            Windows if openssl and gnutls are not used [autodetect]
318   --disable-sdl2           disable sdl2 [autodetect]
319   --disable-securetransport disable Secure Transport, needed for TLS support
320                            on OSX if openssl and gnutls are not used [autodetect]
321   --enable-vapoursynth     enable VapourSynth demuxer [no]
322   --enable-vulkan          enable Vulkan code [no]
323   --disable-xlib           disable xlib [autodetect]
324   --disable-zlib           disable zlib [autodetect]
325
326   The following libraries provide various hardware acceleration features:
327   --disable-amf            disable AMF video encoding code [autodetect]
328   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
329   --enable-cuda-nvcc       enable Nvidia CUDA compiler [no]
330   --disable-cuda-llvm      disable CUDA compilation using clang [autodetect]
331   --disable-cuvid          disable Nvidia CUVID support [autodetect]
332   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
333   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
334   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
335   --enable-libdrm          enable DRM code (Linux) [no]
336   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
337   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
338   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
339   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
340   --disable-nvenc          disable Nvidia video encoding code [autodetect]
341   --enable-omx             enable OpenMAX IL code [no]
342   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
343   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
344   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
345   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
346   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
347   --disable-videotoolbox   disable VideoToolbox code [autodetect]
348
349 Toolchain options:
350   --arch=ARCH              select architecture [$arch]
351   --cpu=CPU                select the minimum required CPU (affects
352                            instruction selection, may crash on older CPUs)
353   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
354   --progs-suffix=SUFFIX    program name suffix []
355   --enable-cross-compile   assume a cross-compiler is used
356   --sysroot=PATH           root of cross-build tree
357   --sysinclude=PATH        location of cross-build system headers
358   --target-os=OS           compiler targets OS [$target_os]
359   --target-exec=CMD        command to run executables on target
360   --target-path=DIR        path to view of build directory on target
361   --target-samples=DIR     path to samples directory on target
362   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
363   --toolchain=NAME         set tool defaults according to NAME
364                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
365                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
366                            valgrind-massif, valgrind-memcheck,
367                            msvc, icl, gcov, llvm-cov, hardened)
368   --nm=NM                  use nm tool NM [$nm_default]
369   --ar=AR                  use archive tool AR [$ar_default]
370   --as=AS                  use assembler AS [$as_default]
371   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
372   --strip=STRIP            use strip tool STRIP [$strip_default]
373   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
374   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
375   --cc=CC                  use C compiler CC [$cc_default]
376   --cxx=CXX                use C compiler CXX [$cxx_default]
377   --objcc=OCC              use ObjC compiler OCC [$cc_default]
378   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
379   --nvcc=NVCC              use Nvidia CUDA compiler NVCC or clang [$nvcc_default]
380   --ld=LD                  use linker LD [$ld_default]
381   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
382   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
383   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
384   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
385   --host-cc=HOSTCC         use host C compiler HOSTCC
386   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
387   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
388   --host-ld=HOSTLD         use host linker HOSTLD
389   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
390   --host-extralibs=HLIBS   use libs HLIBS when linking for host
391   --host-os=OS             compiler host OS [$target_os]
392   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
393   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
394   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
395   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
396   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
397   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
398   --extra-libs=ELIBS       add ELIBS [$ELIBS]
399   --extra-version=STRING   version string suffix []
400   --optflags=OPTFLAGS      override optimization-related compiler flags
401   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
402   --build-suffix=SUFFIX    library name suffix []
403   --enable-pic             build position-independent code
404   --enable-thumb           compile for Thumb instruction set
405   --enable-lto             use link-time optimization
406   --env="ENV=override"     override the environment variables
407
408 Advanced options (experts only):
409   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
410   --custom-allocator=NAME  use a supported custom allocator
411   --disable-symver         disable symbol versioning
412   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
413   --disable-safe-bitstream-reader
414                            disable buffer boundary checking in bitreaders
415                            (faster, but may crash)
416   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
417
418 Optimization options (experts only):
419   --disable-asm            disable all assembly optimizations
420   --disable-altivec        disable AltiVec optimizations
421   --disable-vsx            disable VSX optimizations
422   --disable-power8         disable POWER8 optimizations
423   --disable-amd3dnow       disable 3DNow! optimizations
424   --disable-amd3dnowext    disable 3DNow! extended optimizations
425   --disable-mmx            disable MMX optimizations
426   --disable-mmxext         disable MMXEXT optimizations
427   --disable-sse            disable SSE optimizations
428   --disable-sse2           disable SSE2 optimizations
429   --disable-sse3           disable SSE3 optimizations
430   --disable-ssse3          disable SSSE3 optimizations
431   --disable-sse4           disable SSE4 optimizations
432   --disable-sse42          disable SSE4.2 optimizations
433   --disable-avx            disable AVX optimizations
434   --disable-xop            disable XOP optimizations
435   --disable-fma3           disable FMA3 optimizations
436   --disable-fma4           disable FMA4 optimizations
437   --disable-avx2           disable AVX2 optimizations
438   --disable-avx512         disable AVX-512 optimizations
439   --disable-aesni          disable AESNI optimizations
440   --disable-armv5te        disable armv5te optimizations
441   --disable-armv6          disable armv6 optimizations
442   --disable-armv6t2        disable armv6t2 optimizations
443   --disable-vfp            disable VFP optimizations
444   --disable-neon           disable NEON optimizations
445   --disable-inline-asm     disable use of inline assembly
446   --disable-x86asm         disable use of standalone x86 assembly
447   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
448   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
449   --disable-msa            disable MSA optimizations
450   --disable-msa2           disable MSA2 optimizations
451   --disable-mipsfpu        disable floating point MIPS optimizations
452   --disable-mmi            disable Loongson SIMD optimizations
453   --disable-fast-unaligned consider unaligned accesses slow
454
455 Developer options (useful when working on FFmpeg itself):
456   --disable-debug          disable debugging symbols
457   --enable-debug=LEVEL     set the debug level [$debuglevel]
458   --disable-optimizations  disable compiler optimizations
459   --enable-extra-warnings  enable more compiler warnings
460   --disable-stripping      disable stripping of executables and shared libraries
461   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
462                            2 causes a slowdown at runtime.
463   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
464   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
465                            leaks and errors, using the specified valgrind binary.
466                            Cannot be combined with --target-exec
467   --enable-ftrapv          Trap arithmetic overflows
468   --samples=PATH           location of test samples for FATE, if not set use
469                            \$FATE_SAMPLES at make invocation time.
470   --enable-neon-clobber-test check NEON registers for clobbering (should be
471                            used only for debugging purposes)
472   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
473                            should be used only for debugging purposes)
474   --enable-random          randomly enable/disable components
475   --disable-random
476   --enable-random=LIST     randomly enable/disable specific components or
477   --disable-random=LIST    component groups. LIST is a comma-separated list
478                            of NAME[:PROB] entries where NAME is a component
479                            (group) and PROB the probability associated with
480                            NAME (default 0.5).
481   --random-seed=VALUE      seed value for --enable/disable-random
482   --disable-valgrind-backtrace do not print a backtrace under Valgrind
483                            (only applies to --disable-optimizations builds)
484   --enable-ossfuzz         Enable building fuzzer tool
485   --libfuzzer=PATH         path to libfuzzer
486   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
487                            in the name) of tests whose result is ignored
488   --enable-linux-perf      enable Linux Performance Monitor API
489   --disable-large-tests    disable tests that use a large amount of memory
490
491 NOTE: Object files are built at the place where configure is launched.
492 EOF
493   exit 0
494 }
495
496 if test -t 1 && which tput >/dev/null 2>&1; then
497     ncolors=$(tput colors)
498     if test -n "$ncolors" && test $ncolors -ge 8; then
499         bold_color=$(tput bold)
500         warn_color=$(tput setaf 3)
501         error_color=$(tput setaf 1)
502         reset_color=$(tput sgr0)
503     fi
504     # 72 used instead of 80 since that's the default of pr
505     ncols=$(tput cols)
506 fi
507 : ${ncols:=72}
508
509 log(){
510     echo "$@" >> $logfile
511 }
512
513 log_file(){
514     log BEGIN "$1"
515     log_file_i=1
516     while IFS= read -r log_file_line; do
517         printf '%5d\t%s\n' "$log_file_i" "$log_file_line"
518         log_file_i=$(($log_file_i+1))
519     done < "$1" >> "$logfile"
520     log END "$1"
521 }
522
523 warn(){
524     log "WARNING: $*"
525     WARNINGS="${WARNINGS}WARNING: $*\n"
526 }
527
528 die(){
529     log "$@"
530     echo "$error_color$bold_color$@$reset_color"
531     cat <<EOF
532
533 If you think configure made a mistake, make sure you are using the latest
534 version from Git.  If the latest version fails, report the problem to the
535 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
536 EOF
537     if disabled logging; then
538         cat <<EOF
539 Rerun configure with logging enabled (do not use --disable-logging), and
540 include the log this produces with your report.
541 EOF
542     else
543         cat <<EOF
544 Include the log file "$logfile" produced by configure as this will help
545 solve the problem.
546 EOF
547     fi
548     exit 1
549 }
550
551 # Avoid locale weirdness, besides we really just want to translate ASCII.
552 toupper(){
553     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
554 }
555
556 tolower(){
557     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
558 }
559
560 c_escape(){
561     echo "$*" | sed 's/["\\]/\\\0/g'
562 }
563
564 sh_quote(){
565     v=$(echo "$1" | sed "s/'/'\\\\''/g")
566     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
567     echo "$v"
568 }
569
570 cleanws(){
571     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
572 }
573
574 filter(){
575     pat=$1
576     shift
577     for v; do
578         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
579     done
580 }
581
582 filter_out(){
583     pat=$1
584     shift
585     for v; do
586         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
587     done
588 }
589
590 map(){
591     m=$1
592     shift
593     for v; do eval $m; done
594 }
595
596 add_suffix(){
597     suffix=$1
598     shift
599     for v; do echo ${v}${suffix}; done
600 }
601
602 remove_suffix(){
603     suffix=$1
604     shift
605     for v; do echo ${v%$suffix}; done
606 }
607
608 set_all(){
609     value=$1
610     shift
611     for var in $*; do
612         eval $var=$value
613     done
614 }
615
616 set_weak(){
617     value=$1
618     shift
619     for var; do
620         eval : \${$var:=$value}
621     done
622 }
623
624 sanitize_var_name(){
625     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
626 }
627
628 set_sanitized(){
629     var=$1
630     shift
631     eval $(sanitize_var_name "$var")='$*'
632 }
633
634 get_sanitized(){
635     eval echo \$$(sanitize_var_name "$1")
636 }
637
638 pushvar(){
639     for pvar in $*; do
640         eval level=\${${pvar}_level:=0}
641         eval ${pvar}_${level}="\$$pvar"
642         eval ${pvar}_level=$(($level+1))
643     done
644 }
645
646 popvar(){
647     for pvar in $*; do
648         eval level=\${${pvar}_level:-0}
649         test $level = 0 && continue
650         eval level=$(($level-1))
651         eval $pvar="\${${pvar}_${level}}"
652         eval ${pvar}_level=$level
653         eval unset ${pvar}_${level}
654     done
655 }
656
657 request(){
658     for var in $*; do
659         eval ${var}_requested=yes
660         eval $var=
661     done
662 }
663
664 warn_if_gets_disabled(){
665     for var in $*; do
666         WARN_IF_GETS_DISABLED_LIST="$WARN_IF_GETS_DISABLED_LIST $var"
667     done
668 }
669
670 enable(){
671     set_all yes $*
672 }
673
674 disable(){
675     set_all no $*
676 }
677
678 disable_with_reason(){
679     disable $1
680     eval "${1}_disable_reason=\"$2\""
681     if requested $1; then
682         die "ERROR: $1 requested, but $2"
683     fi
684 }
685
686 enable_weak(){
687     set_weak yes $*
688 }
689
690 disable_weak(){
691     set_weak no $*
692 }
693
694 enable_sanitized(){
695     for var; do
696         enable $(sanitize_var_name $var)
697     done
698 }
699
700 disable_sanitized(){
701     for var; do
702         disable $(sanitize_var_name $var)
703     done
704 }
705
706 do_enable_deep(){
707     for var; do
708         enabled $var && continue
709         set -- $var
710         eval enable_deep \$${var}_select
711         var=$1
712         eval enable_deep_weak \$${var}_suggest
713     done
714 }
715
716 enable_deep(){
717     do_enable_deep $*
718     enable $*
719 }
720
721 enable_deep_weak(){
722     for var; do
723         disabled $var && continue
724         set -- $var
725         do_enable_deep $var
726         var=$1
727         enable_weak $var
728     done
729 }
730
731 requested(){
732     test "${1#!}" = "$1" && op="=" || op="!="
733     eval test "x\$${1#!}_requested" $op "xyes"
734 }
735
736 enabled(){
737     test "${1#!}" = "$1" && op="=" || op="!="
738     eval test "x\$${1#!}" $op "xyes"
739 }
740
741 disabled(){
742     test "${1#!}" = "$1" && op="=" || op="!="
743     eval test "x\$${1#!}" $op "xno"
744 }
745
746 enabled_all(){
747     for opt; do
748         enabled $opt || return 1
749     done
750 }
751
752 disabled_all(){
753     for opt; do
754         disabled $opt || return 1
755     done
756 }
757
758 enabled_any(){
759     for opt; do
760         enabled $opt && return 0
761     done
762 }
763
764 disabled_any(){
765     for opt; do
766         disabled $opt && return 0
767     done
768     return 1
769 }
770
771 set_default(){
772     for opt; do
773         eval : \${$opt:=\$${opt}_default}
774     done
775 }
776
777 is_in(){
778     value=$1
779     shift
780     for var in $*; do
781         [ $var = $value ] && return 0
782     done
783     return 1
784 }
785
786 # The cfg loop is very hot (several thousands iterations), and in bash also
787 # potentialy quite slow. Try to abort the iterations early, preferably without
788 # calling functions. 70%+ of the time cfg is already done or without deps.
789 check_deps(){
790     for cfg; do
791         eval [ x\$${cfg}_checking = xdone ] && continue
792         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
793
794         eval "
795         dep_all=\$${cfg}_deps
796         dep_any=\$${cfg}_deps_any
797         dep_con=\$${cfg}_conflict
798         dep_sel=\$${cfg}_select
799         dep_sgs=\$${cfg}_suggest
800         dep_ifa=\$${cfg}_if
801         dep_ifn=\$${cfg}_if_any
802         "
803
804         # most of the time here $cfg has no deps - avoid costly no-op work
805         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
806             eval ${cfg}_checking=inprogress
807
808             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
809             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
810             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
811
812             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
813             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
814             enabled_all  $dep_all || { disable_with_reason $cfg "not all dependencies are satisfied: $dep_all"; }
815             enabled_any  $dep_any || { disable_with_reason $cfg "not any dependency is satisfied: $dep_any"; }
816             disabled_all $dep_con || { disable_with_reason $cfg "some conflicting dependencies are unsatisfied: $dep_con"; }
817             disabled_any $dep_sel && { disable_with_reason $cfg "some selected dependency is unsatisfied: $dep_sel"; }
818
819             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
820
821             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
822                 # filter out library deps, these do not belong in extralibs
823                 is_in $dep $LIBRARY_LIST && continue
824                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
825             done
826         fi
827
828         eval ${cfg}_checking=done
829     done
830 }
831
832 print_config(){
833     pfx=$1
834     files=$2
835     shift 2
836     map 'eval echo "$v \${$v:-no}"' "$@" |
837     awk "BEGIN { split(\"$files\", files) }
838         {
839             c = \"$pfx\" toupper(\$1);
840             v = \$2;
841             sub(/yes/, 1, v);
842             sub(/no/,  0, v);
843             for (f in files) {
844                 file = files[f];
845                 if (file ~ /\\.h\$/) {
846                     printf(\"#define %s %d\\n\", c, v) >>file;
847                 } else if (file ~ /\\.asm\$/) {
848                     printf(\"%%define %s %d\\n\", c, v) >>file;
849                 } else if (file ~ /\\.mak\$/) {
850                     n = -v ? \"\" : \"!\";
851                     printf(\"%s%s=yes\\n\", n, c) >>file;
852                 } else if (file ~ /\\.texi\$/) {
853                     pre = -v ? \"\" : \"@c \";
854                     yesno = \$2;
855                     c2 = tolower(c);
856                     gsub(/_/, \"-\", c2);
857                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
858                 }
859             }
860         }"
861 }
862
863 print_enabled(){
864     suf=$1
865     shift
866     for v; do
867         enabled $v && printf "%s\n" ${v%$suf}
868     done
869 }
870
871 append(){
872     var=$1
873     shift
874     eval "$var=\"\$$var $*\""
875 }
876
877 prepend(){
878     var=$1
879     shift
880     eval "$var=\"$* \$$var\""
881 }
882
883 reverse () {
884     eval '
885         reverse_out=
886         for v in $'$1'; do
887             reverse_out="$v $reverse_out"
888         done
889         '$1'=$reverse_out
890     '
891 }
892
893 # keeps the last occurence of each non-unique item
894 unique(){
895     unique_out=
896     eval unique_in=\$$1
897     reverse unique_in
898     for v in $unique_in; do
899         # " $unique_out" +space such that every item is surrounded with spaces
900         case " $unique_out" in *" $v "*) continue; esac  # already in list
901         unique_out="$unique_out$v "
902     done
903     reverse unique_out
904     eval $1=\$unique_out
905 }
906
907 resolve(){
908     resolve_out=
909     eval resolve_in=\$$1
910     for v in $resolve_in; do
911         eval 'resolve_out="$resolve_out$'$v' "'
912     done
913     eval $1=\$resolve_out
914 }
915
916 add_cppflags(){
917     append CPPFLAGS "$@"
918 }
919
920 add_cflags(){
921     append CFLAGS $($cflags_filter "$@")
922 }
923
924 add_cflags_headers(){
925     append CFLAGS_HEADERS $($cflags_filter "$@")
926 }
927
928 add_cxxflags(){
929     append CXXFLAGS $($cflags_filter "$@")
930 }
931
932 add_objcflags(){
933     append OBJCFLAGS $($objcflags_filter "$@")
934 }
935
936 add_asflags(){
937     append ASFLAGS $($asflags_filter "$@")
938 }
939
940 add_ldflags(){
941     append LDFLAGS $($ldflags_filter "$@")
942 }
943
944 add_ldexeflags(){
945     append LDEXEFLAGS $($ldflags_filter "$@")
946 }
947
948 add_ldsoflags(){
949     append LDSOFLAGS $($ldflags_filter "$@")
950 }
951
952 add_extralibs(){
953     prepend extralibs $($ldflags_filter "$@")
954 }
955
956 add_stripflags(){
957     append ASMSTRIPFLAGS "$@"
958 }
959
960 add_host_cppflags(){
961     append host_cppflags "$@"
962 }
963
964 add_host_cflags(){
965     append host_cflags $($host_cflags_filter "$@")
966 }
967
968 add_host_ldflags(){
969     append host_ldflags $($host_ldflags_filter "$@")
970 }
971
972 add_compat(){
973     append compat_objs $1
974     shift
975     map 'add_cppflags -D$v' "$@"
976 }
977
978 test_cmd(){
979     log "$@"
980     "$@" >> $logfile 2>&1
981 }
982
983 test_stat(){
984     log test_stat "$@"
985     stat "$1" >> $logfile 2>&1
986 }
987
988 cc_e(){
989     eval printf '%s\\n' $CC_E
990 }
991
992 cc_o(){
993     eval printf '%s\\n' $CC_O
994 }
995
996 as_o(){
997     eval printf '%s\\n' $AS_O
998 }
999
1000 x86asm_o(){
1001     eval printf '%s\\n' $X86ASM_O
1002 }
1003
1004 ld_o(){
1005     eval printf '%s\\n' $LD_O
1006 }
1007
1008 hostcc_e(){
1009     eval printf '%s\\n' $HOSTCC_E
1010 }
1011
1012 hostcc_o(){
1013     eval printf '%s\\n' $HOSTCC_O
1014 }
1015
1016 nvcc_o(){
1017     eval printf '%s\\n' $NVCC_O
1018 }
1019
1020 test_cc(){
1021     log test_cc "$@"
1022     cat > $TMPC
1023     log_file $TMPC
1024     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
1025 }
1026
1027 test_cxx(){
1028     log test_cxx "$@"
1029     cat > $TMPCPP
1030     log_file $TMPCPP
1031     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
1032 }
1033
1034 test_objcc(){
1035     log test_objcc "$@"
1036     cat > $TMPM
1037     log_file $TMPM
1038     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1039 }
1040
1041 test_nvcc(){
1042     log test_nvcc "$@"
1043     cat > $TMPCU
1044     log_file $TMPCU
1045     tmpcu_=$TMPCU
1046     tmpo_=$TMPO
1047     [ -x "$(command -v cygpath)" ] && tmpcu_=$(cygpath -m $tmpcu_) && tmpo_=$(cygpath -m $tmpo_)
1048     test_cmd $nvcc $nvccflags "$@" $NVCC_C $(nvcc_o $tmpo_) $tmpcu_
1049 }
1050
1051 check_nvcc() {
1052     log check_nvcc "$@"
1053     name=$1
1054     shift 1
1055     disabled $name && return
1056     disable $name
1057     test_nvcc "$@" <<EOF && enable $name
1058 extern "C" {
1059     __global__ void hello(unsigned char *data) {}
1060 }
1061 EOF
1062 }
1063
1064 test_cpp(){
1065     log test_cpp "$@"
1066     cat > $TMPC
1067     log_file $TMPC
1068     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1069 }
1070
1071 test_as(){
1072     log test_as "$@"
1073     cat > $TMPS
1074     log_file $TMPS
1075     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1076 }
1077
1078 test_x86asm(){
1079     log test_x86asm "$@"
1080     echo "$1" > $TMPASM
1081     log_file $TMPASM
1082     shift
1083     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1084 }
1085
1086 check_cmd(){
1087     log check_cmd "$@"
1088     cmd=$1
1089     disabled $cmd && return
1090     disable $cmd
1091     test_cmd $@ && enable $cmd
1092 }
1093
1094 check_as(){
1095     log check_as "$@"
1096     name=$1
1097     code=$2
1098     shift 2
1099     disable $name
1100     test_as $@ <<EOF && enable $name
1101 $code
1102 EOF
1103 }
1104
1105 check_inline_asm(){
1106     log check_inline_asm "$@"
1107     name="$1"
1108     code="$2"
1109     shift 2
1110     disable $name
1111     test_cc "$@" <<EOF && enable $name
1112 void foo(void){ __asm__ volatile($code); }
1113 EOF
1114 }
1115
1116 check_inline_asm_flags(){
1117     log check_inline_asm_flags "$@"
1118     name="$1"
1119     code="$2"
1120     flags=''
1121     shift 2
1122     while [ "$1" != "" ]; do
1123       append flags $1
1124       shift
1125     done;
1126     disable $name
1127     cat > $TMPC <<EOF
1128 void foo(void){ __asm__ volatile($code); }
1129 EOF
1130     log_file $TMPC
1131     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1132     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1133 }
1134
1135 check_insn(){
1136     log check_insn "$@"
1137     check_inline_asm ${1}_inline "\"$2\""
1138     check_as ${1}_external "$2"
1139 }
1140
1141 check_x86asm(){
1142     log check_x86asm "$@"
1143     name=$1
1144     shift
1145     disable $name
1146     test_x86asm "$@" && enable $name
1147 }
1148
1149 test_ld(){
1150     log test_ld "$@"
1151     type=$1
1152     shift 1
1153     flags=$(filter_out '-l*|*.so' $@)
1154     libs=$(filter '-l*|*.so' $@)
1155     test_$type $($cflags_filter $flags) || return
1156     flags=$($ldflags_filter $flags)
1157     libs=$($ldflags_filter $libs)
1158     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1159 }
1160
1161 check_ld(){
1162     log check_ld "$@"
1163     type=$1
1164     name=$2
1165     shift 2
1166     disable $name
1167     test_ld $type $@ && enable $name
1168 }
1169
1170 print_include(){
1171     hdr=$1
1172     test "${hdr%.h}" = "${hdr}" &&
1173         echo "#include $hdr"    ||
1174         echo "#include <$hdr>"
1175 }
1176
1177 test_code(){
1178     log test_code "$@"
1179     check=$1
1180     headers=$2
1181     code=$3
1182     shift 3
1183     {
1184         for hdr in $headers; do
1185             print_include $hdr
1186         done
1187         echo "int main(void) { $code; return 0; }"
1188     } | test_$check "$@"
1189 }
1190
1191 check_cppflags(){
1192     log check_cppflags "$@"
1193     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1194 #include <stdlib.h>
1195 EOF
1196 }
1197
1198 test_cflags(){
1199     log test_cflags "$@"
1200     set -- $($cflags_filter "$@")
1201     test_cc "$@" <<EOF
1202 int x;
1203 EOF
1204 }
1205
1206 check_cflags(){
1207     log check_cflags "$@"
1208     test_cflags "$@" && add_cflags "$@"
1209 }
1210
1211 check_cxxflags(){
1212     log check_cxxflags "$@"
1213     set -- $($cflags_filter "$@")
1214     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1215 int x;
1216 EOF
1217 }
1218
1219 test_objcflags(){
1220     log test_objcflags "$@"
1221     set -- $($objcflags_filter "$@")
1222     test_objcc "$@" <<EOF
1223 int x;
1224 EOF
1225 }
1226
1227 check_objcflags(){
1228     log check_objcflags "$@"
1229     test_objcflags "$@" && add_objcflags "$@"
1230 }
1231
1232 test_ldflags(){
1233     log test_ldflags "$@"
1234     set -- $($ldflags_filter "$@")
1235     test_ld "cc" "$@" <<EOF
1236 int main(void){ return 0; }
1237 EOF
1238 }
1239
1240 check_ldflags(){
1241     log check_ldflags "$@"
1242     test_ldflags "$@" && add_ldflags "$@"
1243 }
1244
1245 test_stripflags(){
1246     log test_stripflags "$@"
1247     # call test_cc to get a fresh TMPO
1248     test_cc <<EOF
1249 int main(void) { return 0; }
1250 EOF
1251     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1252 }
1253
1254 check_stripflags(){
1255     log check_stripflags "$@"
1256     test_stripflags "$@" && add_stripflags "$@"
1257 }
1258
1259 check_headers(){
1260     log check_headers "$@"
1261     headers=$1
1262     shift
1263     disable_sanitized $headers
1264     {
1265         for hdr in $headers; do
1266             print_include $hdr
1267         done
1268         echo "int x;"
1269     } | test_cpp "$@" && enable_sanitized $headers
1270 }
1271
1272 check_header_objcc(){
1273     log check_header_objcc "$@"
1274     rm -f -- "$TMPO"
1275     header=$1
1276     shift
1277     disable_sanitized $header
1278     {
1279        echo "#include <$header>"
1280        echo "int main(void) { return 0; }"
1281     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1282 }
1283
1284 check_apple_framework(){
1285     log check_apple_framework "$@"
1286     framework="$1"
1287     name="$(tolower $framework)"
1288     header="${framework}/${framework}.h"
1289     disable $name
1290     check_header_objcc $header &&
1291         enable $name && eval ${name}_extralibs='"-framework $framework"'
1292 }
1293
1294 check_func(){
1295     log check_func "$@"
1296     func=$1
1297     shift
1298     disable $func
1299     test_ld "cc" "$@" <<EOF && enable $func
1300 extern int $func();
1301 int main(void){ $func(); }
1302 EOF
1303 }
1304
1305 check_complexfunc(){
1306     log check_complexfunc "$@"
1307     func=$1
1308     narg=$2
1309     shift 2
1310     test $narg = 2 && args="f, g" || args="f * I"
1311     disable $func
1312     test_ld "cc" "$@" <<EOF && enable $func
1313 #include <complex.h>
1314 #include <math.h>
1315 float foo(complex float f, complex float g) { return $func($args); }
1316 int main(void){ return (int) foo; }
1317 EOF
1318 }
1319
1320 check_mathfunc(){
1321     log check_mathfunc "$@"
1322     func=$1
1323     narg=$2
1324     shift 2
1325     test $narg = 2 && args="f, g" || args="f"
1326     disable $func
1327     test_ld "cc" "$@" <<EOF && enable $func
1328 #include <math.h>
1329 float foo(float f, float g) { return $func($args); }
1330 int main(void){ return (int) foo; }
1331 EOF
1332 }
1333
1334 check_func_headers(){
1335     log check_func_headers "$@"
1336     headers=$1
1337     funcs=$2
1338     shift 2
1339     {
1340         for hdr in $headers; do
1341             print_include $hdr
1342         done
1343         echo "#include <stdint.h>"
1344         for func in $funcs; do
1345             echo "long check_$func(void) { return (long) $func; }"
1346         done
1347         echo "int main(void) { int ret = 0;"
1348         # LTO could optimize out the test functions without this
1349         for func in $funcs; do
1350             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1351         done
1352         echo "return ret; }"
1353     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1354 }
1355
1356 check_class_headers_cpp(){
1357     log check_class_headers_cpp "$@"
1358     headers=$1
1359     classes=$2
1360     shift 2
1361     {
1362         for hdr in $headers; do
1363             echo "#include <$hdr>"
1364         done
1365         echo "int main(void) { "
1366         i=1
1367         for class in $classes; do
1368             echo "$class obj$i;"
1369             i=$(expr $i + 1)
1370         done
1371         echo "return 0; }"
1372     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1373 }
1374
1375 test_cpp_condition(){
1376     log test_cpp_condition "$@"
1377     header=$1
1378     condition=$2
1379     shift 2
1380     test_cpp "$@" <<EOF
1381 #include <$header>
1382 #if !($condition)
1383 #error "unsatisfied condition: $condition"
1384 #endif
1385 EOF
1386 }
1387
1388 check_cpp_condition(){
1389     log check_cpp_condition "$@"
1390     name=$1
1391     shift 1
1392     disable $name
1393     test_cpp_condition "$@" && enable $name
1394 }
1395
1396 test_cflags_cc(){
1397     log test_cflags_cc "$@"
1398     flags=$1
1399     header=$2
1400     condition=$3
1401     shift 3
1402     set -- $($cflags_filter "$flags")
1403     test_cc "$@" <<EOF
1404 #include <$header>
1405 #if !($condition)
1406 #error "unsatisfied condition: $condition"
1407 #endif
1408 EOF
1409 }
1410
1411 check_lib(){
1412     log check_lib "$@"
1413     name="$1"
1414     headers="$2"
1415     funcs="$3"
1416     shift 3
1417     disable $name
1418     check_func_headers "$headers" "$funcs" "$@" &&
1419         enable $name && eval ${name}_extralibs="\$@"
1420 }
1421
1422 check_lib_cpp(){
1423     log check_lib_cpp "$@"
1424     name="$1"
1425     headers="$2"
1426     classes="$3"
1427     shift 3
1428     disable $name
1429     check_class_headers_cpp "$headers" "$classes" "$@" &&
1430         enable $name && eval ${name}_extralibs="\$@"
1431 }
1432
1433 test_pkg_config(){
1434     log test_pkg_config "$@"
1435     name="$1"
1436     pkg_version="$2"
1437     pkg="${2%% *}"
1438     headers="$3"
1439     funcs="$4"
1440     shift 4
1441     disable $name
1442     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1443     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1444     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1445     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1446         enable $name &&
1447         set_sanitized "${name}_cflags"    $pkg_cflags &&
1448         set_sanitized "${name}_extralibs" $pkg_libs
1449 }
1450
1451 check_pkg_config(){
1452     log check_pkg_config "$@"
1453     name="$1"
1454     test_pkg_config "$@" &&
1455         eval add_cflags \$${name}_cflags
1456 }
1457
1458 test_exec(){
1459     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1460 }
1461
1462 check_exec_crash(){
1463     log check_exec_crash "$@"
1464     code=$(cat)
1465
1466     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1467     # are safe but may not be available everywhere.  Thus we use
1468     # raise(SIGTERM) instead.  The check is run in a subshell so we
1469     # can redirect the "Terminated" message from the shell.  SIGBUS
1470     # is not defined by standard C so it is used conditionally.
1471
1472     (test_exec "$@") >> $logfile 2>&1 <<EOF
1473 #include <signal.h>
1474 static void sighandler(int sig){
1475     raise(SIGTERM);
1476 }
1477 int foo(void){
1478     $code
1479 }
1480 int (*func_ptr)(void) = foo;
1481 int main(void){
1482     signal(SIGILL, sighandler);
1483     signal(SIGFPE, sighandler);
1484     signal(SIGSEGV, sighandler);
1485 #ifdef SIGBUS
1486     signal(SIGBUS, sighandler);
1487 #endif
1488     return func_ptr();
1489 }
1490 EOF
1491 }
1492
1493 check_type(){
1494     log check_type "$@"
1495     headers=$1
1496     type=$2
1497     shift 2
1498     disable_sanitized "$type"
1499     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1500 }
1501
1502 check_struct(){
1503     log check_struct "$@"
1504     headers=$1
1505     struct=$2
1506     member=$3
1507     shift 3
1508     disable_sanitized "${struct}_${member}"
1509     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1510         enable_sanitized "${struct}_${member}"
1511 }
1512
1513 check_builtin(){
1514     log check_builtin "$@"
1515     name=$1
1516     headers=$2
1517     builtin=$3
1518     shift 3
1519     disable "$name"
1520     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1521 }
1522
1523 check_compile_assert(){
1524     log check_compile_assert "$@"
1525     name=$1
1526     headers=$2
1527     condition=$3
1528     shift 3
1529     disable "$name"
1530     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1531 }
1532
1533 check_cc(){
1534     log check_cc "$@"
1535     name=$1
1536     shift
1537     disable "$name"
1538     test_code cc "$@" && enable "$name"
1539 }
1540
1541 require(){
1542     log require "$@"
1543     name_version="$1"
1544     name="${1%% *}"
1545     shift
1546     check_lib $name "$@" || die "ERROR: $name_version not found"
1547 }
1548
1549 require_cc(){
1550     log require_cc "$@"
1551     name="$1"
1552     check_cc "$@" || die "ERROR: $name failed"
1553 }
1554
1555 require_cpp(){
1556     log require_cpp "$@"
1557     name_version="$1"
1558     name="${1%% *}"
1559     shift
1560     check_lib_cpp "$name" "$@" || die "ERROR: $name_version not found"
1561 }
1562
1563 require_headers(){
1564     log require_headers "$@"
1565     headers="$1"
1566     check_headers "$@" || die "ERROR: $headers not found"
1567 }
1568
1569 require_cpp_condition(){
1570     log require_cpp_condition "$@"
1571     condition="$3"
1572     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1573 }
1574
1575 require_pkg_config(){
1576     log require_pkg_config "$@"
1577     pkg_version="$2"
1578     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1579 }
1580
1581 test_host_cc(){
1582     log test_host_cc "$@"
1583     cat > $TMPC
1584     log_file $TMPC
1585     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1586 }
1587
1588 test_host_cpp(){
1589     log test_host_cpp "$@"
1590     cat > $TMPC
1591     log_file $TMPC
1592     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1593 }
1594
1595 check_host_cppflags(){
1596     log check_host_cppflags "$@"
1597     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1598 #include <stdlib.h>
1599 EOF
1600 }
1601
1602 check_host_cflags(){
1603     log check_host_cflags "$@"
1604     set -- $($host_cflags_filter "$@")
1605     test_host_cc "$@" <<EOF && append host_cflags "$@"
1606 int x;
1607 EOF
1608 }
1609
1610 test_host_cpp_condition(){
1611     log test_host_cpp_condition "$@"
1612     header=$1
1613     condition=$2
1614     shift 2
1615     test_host_cpp "$@" <<EOF
1616 #include <$header>
1617 #if !($condition)
1618 #error "unsatisfied condition: $condition"
1619 #endif
1620 EOF
1621 }
1622
1623 check_host_cpp_condition(){
1624     log check_host_cpp_condition "$@"
1625     name=$1
1626     shift 1
1627     disable $name
1628     test_host_cpp_condition "$@" && enable $name
1629 }
1630
1631 cp_if_changed(){
1632     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1633     mkdir -p "$(dirname $2)"
1634     cp -f "$1" "$2"
1635 }
1636
1637 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1638 # system-dependent things.
1639
1640 AVCODEC_COMPONENTS="
1641     bsfs
1642     decoders
1643     encoders
1644     hwaccels
1645     parsers
1646 "
1647
1648 AVDEVICE_COMPONENTS="
1649     indevs
1650     outdevs
1651 "
1652
1653 AVFILTER_COMPONENTS="
1654     filters
1655 "
1656
1657 AVFORMAT_COMPONENTS="
1658     demuxers
1659     muxers
1660     protocols
1661 "
1662
1663 COMPONENT_LIST="
1664     $AVCODEC_COMPONENTS
1665     $AVDEVICE_COMPONENTS
1666     $AVFILTER_COMPONENTS
1667     $AVFORMAT_COMPONENTS
1668 "
1669
1670 EXAMPLE_LIST="
1671     avio_list_dir_example
1672     avio_reading_example
1673     decode_audio_example
1674     decode_video_example
1675     demuxing_decoding_example
1676     encode_audio_example
1677     encode_video_example
1678     extract_mvs_example
1679     filter_audio_example
1680     filtering_audio_example
1681     filtering_video_example
1682     http_multiclient_example
1683     hw_decode_example
1684     metadata_example
1685     muxing_example
1686     qsvdec_example
1687     remuxing_example
1688     resampling_audio_example
1689     scaling_video_example
1690     transcode_aac_example
1691     transcoding_example
1692     vaapi_encode_example
1693     vaapi_transcode_example
1694 "
1695
1696 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1697     alsa
1698     appkit
1699     avfoundation
1700     bzlib
1701     coreimage
1702     iconv
1703     libxcb
1704     libxcb_shm
1705     libxcb_shape
1706     libxcb_xfixes
1707     lzma
1708     mediafoundation
1709     schannel
1710     sdl2
1711     securetransport
1712     sndio
1713     xlib
1714     zlib
1715 "
1716
1717 EXTERNAL_LIBRARY_GPL_LIST="
1718     avisynth
1719     frei0r
1720     libcdio
1721     libdavs2
1722     librubberband
1723     libvidstab
1724     libx264
1725     libx265
1726     libxavs
1727     libxavs2
1728     libxvid
1729 "
1730
1731 EXTERNAL_LIBRARY_NONFREE_LIST="
1732     decklink
1733     libfdk_aac
1734     openssl
1735     libtls
1736 "
1737
1738 EXTERNAL_LIBRARY_VERSION3_LIST="
1739     gmp
1740     libaribb24
1741     liblensfun
1742     libopencore_amrnb
1743     libopencore_amrwb
1744     libvmaf
1745     libvo_amrwbenc
1746     mbedtls
1747     rkmpp
1748 "
1749
1750 EXTERNAL_LIBRARY_GPLV3_LIST="
1751     libsmbclient
1752 "
1753
1754 EXTERNAL_LIBRARY_LIST="
1755     $EXTERNAL_LIBRARY_GPL_LIST
1756     $EXTERNAL_LIBRARY_NONFREE_LIST
1757     $EXTERNAL_LIBRARY_VERSION3_LIST
1758     $EXTERNAL_LIBRARY_GPLV3_LIST
1759     chromaprint
1760     gcrypt
1761     gnutls
1762     jni
1763     ladspa
1764     libaom
1765     libass
1766     libbluray
1767     libbs2b
1768     libcaca
1769     libcelt
1770     libcodec2
1771     libdav1d
1772     libdc1394
1773     libdrm
1774     libflite
1775     libfontconfig
1776     libfreetype
1777     libfribidi
1778     libglslang
1779     libgme
1780     libgsm
1781     libiec61883
1782     libilbc
1783     libjack
1784     libklvanc
1785     libkvazaar
1786     libmodplug
1787     libmp3lame
1788     libmysofa
1789     libopencv
1790     libopenh264
1791     libopenjpeg
1792     libopenmpt
1793     libopus
1794     libpulse
1795     librabbitmq
1796     librav1e
1797     librsvg
1798     librtmp
1799     libshine
1800     libsmbclient
1801     libsnappy
1802     libsoxr
1803     libspeex
1804     libsrt
1805     libssh
1806     libtensorflow
1807     libtesseract
1808     libtheora
1809     libtwolame
1810     libv4l2
1811     libvorbis
1812     libvpx
1813     libwavpack
1814     libwebp
1815     libxml2
1816     libzimg
1817     libzmq
1818     libzvbi
1819     lv2
1820     mediacodec
1821     openal
1822     opengl
1823     pocketsphinx
1824     vapoursynth
1825 "
1826
1827 HWACCEL_AUTODETECT_LIBRARY_LIST="
1828     amf
1829     audiotoolbox
1830     crystalhd
1831     cuda
1832     cuda_llvm
1833     cuvid
1834     d3d11va
1835     dxva2
1836     ffnvcodec
1837     nvdec
1838     nvenc
1839     vaapi
1840     vdpau
1841     videotoolbox
1842     v4l2_m2m
1843     xvmc
1844 "
1845
1846 # catchall list of things that require external libs to link
1847 EXTRALIBS_LIST="
1848     cpu_init
1849     cws2fws
1850 "
1851
1852 HWACCEL_LIBRARY_NONFREE_LIST="
1853     cuda_nvcc
1854     cuda_sdk
1855     libnpp
1856 "
1857
1858 HWACCEL_LIBRARY_LIST="
1859     $HWACCEL_LIBRARY_NONFREE_LIST
1860     libmfx
1861     mmal
1862     omx
1863     opencl
1864     vulkan
1865 "
1866
1867 DOCUMENT_LIST="
1868     doc
1869     htmlpages
1870     manpages
1871     podpages
1872     txtpages
1873 "
1874
1875 FEATURE_LIST="
1876     ftrapv
1877     gray
1878     hardcoded_tables
1879     omx_rpi
1880     runtime_cpudetect
1881     safe_bitstream_reader
1882     shared
1883     small
1884     static
1885     swscale_alpha
1886 "
1887
1888 # this list should be kept in linking order
1889 LIBRARY_LIST="
1890     avdevice
1891     avfilter
1892     swscale
1893     postproc
1894     avformat
1895     avcodec
1896     swresample
1897     avresample
1898     avutil
1899 "
1900
1901 LICENSE_LIST="
1902     gpl
1903     nonfree
1904     version3
1905 "
1906
1907 PROGRAM_LIST="
1908     ffplay
1909     ffprobe
1910     ffmpeg
1911 "
1912
1913 SUBSYSTEM_LIST="
1914     dct
1915     dwt
1916     error_resilience
1917     faan
1918     fast_unaligned
1919     fft
1920     lsp
1921     lzo
1922     mdct
1923     pixelutils
1924     network
1925     rdft
1926 "
1927
1928 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1929 CONFIG_LIST="
1930     $DOCUMENT_LIST
1931     $EXAMPLE_LIST
1932     $EXTERNAL_LIBRARY_LIST
1933     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1934     $HWACCEL_LIBRARY_LIST
1935     $HWACCEL_AUTODETECT_LIBRARY_LIST
1936     $FEATURE_LIST
1937     $LICENSE_LIST
1938     $LIBRARY_LIST
1939     $PROGRAM_LIST
1940     $SUBSYSTEM_LIST
1941     autodetect
1942     fontconfig
1943     large_tests
1944     linux_perf
1945     memory_poisoning
1946     neon_clobber_test
1947     ossfuzz
1948     pic
1949     thumb
1950     valgrind_backtrace
1951     xmm_clobber_test
1952     $COMPONENT_LIST
1953 "
1954
1955 THREADS_LIST="
1956     pthreads
1957     os2threads
1958     w32threads
1959 "
1960
1961 ATOMICS_LIST="
1962     atomics_gcc
1963     atomics_suncc
1964     atomics_win32
1965 "
1966
1967 AUTODETECT_LIBS="
1968     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1969     $HWACCEL_AUTODETECT_LIBRARY_LIST
1970     $THREADS_LIST
1971 "
1972
1973 ARCH_LIST="
1974     aarch64
1975     alpha
1976     arm
1977     avr32
1978     avr32_ap
1979     avr32_uc
1980     bfin
1981     ia64
1982     m68k
1983     mips
1984     mips64
1985     parisc
1986     ppc
1987     ppc64
1988     s390
1989     sh4
1990     sparc
1991     sparc64
1992     tilegx
1993     tilepro
1994     tomi
1995     x86
1996     x86_32
1997     x86_64
1998 "
1999
2000 ARCH_EXT_LIST_ARM="
2001     armv5te
2002     armv6
2003     armv6t2
2004     armv8
2005     neon
2006     vfp
2007     vfpv3
2008     setend
2009 "
2010
2011 ARCH_EXT_LIST_MIPS="
2012     mipsfpu
2013     mips32r2
2014     mips32r5
2015     mips64r2
2016     mips32r6
2017     mips64r6
2018     mipsdsp
2019     mipsdspr2
2020     msa
2021     msa2
2022 "
2023
2024 ARCH_EXT_LIST_LOONGSON="
2025     loongson2
2026     loongson3
2027     mmi
2028 "
2029
2030 ARCH_EXT_LIST_X86_SIMD="
2031     aesni
2032     amd3dnow
2033     amd3dnowext
2034     avx
2035     avx2
2036     avx512
2037     fma3
2038     fma4
2039     mmx
2040     mmxext
2041     sse
2042     sse2
2043     sse3
2044     sse4
2045     sse42
2046     ssse3
2047     xop
2048 "
2049
2050 ARCH_EXT_LIST_PPC="
2051     altivec
2052     dcbzl
2053     ldbrx
2054     power8
2055     ppc4xx
2056     vsx
2057 "
2058
2059 ARCH_EXT_LIST_X86="
2060     $ARCH_EXT_LIST_X86_SIMD
2061     cpunop
2062     i686
2063 "
2064
2065 ARCH_EXT_LIST="
2066     $ARCH_EXT_LIST_ARM
2067     $ARCH_EXT_LIST_PPC
2068     $ARCH_EXT_LIST_X86
2069     $ARCH_EXT_LIST_MIPS
2070     $ARCH_EXT_LIST_LOONGSON
2071 "
2072
2073 ARCH_FEATURES="
2074     aligned_stack
2075     fast_64bit
2076     fast_clz
2077     fast_cmov
2078     local_aligned
2079     simd_align_16
2080     simd_align_32
2081     simd_align_64
2082 "
2083
2084 BUILTIN_LIST="
2085     atomic_cas_ptr
2086     machine_rw_barrier
2087     MemoryBarrier
2088     mm_empty
2089     rdtsc
2090     sem_timedwait
2091     sync_val_compare_and_swap
2092 "
2093 HAVE_LIST_CMDLINE="
2094     inline_asm
2095     symver
2096     x86asm
2097 "
2098
2099 HAVE_LIST_PUB="
2100     bigendian
2101     fast_unaligned
2102 "
2103
2104 HEADERS_LIST="
2105     arpa_inet_h
2106     asm_types_h
2107     cdio_paranoia_h
2108     cdio_paranoia_paranoia_h
2109     cuda_h
2110     dispatch_dispatch_h
2111     dev_bktr_ioctl_bt848_h
2112     dev_bktr_ioctl_meteor_h
2113     dev_ic_bt8xx_h
2114     dev_video_bktr_ioctl_bt848_h
2115     dev_video_meteor_ioctl_meteor_h
2116     direct_h
2117     dirent_h
2118     dxgidebug_h
2119     dxva_h
2120     ES2_gl_h
2121     gsm_h
2122     io_h
2123     linux_perf_event_h
2124     machine_ioctl_bt848_h
2125     machine_ioctl_meteor_h
2126     malloc_h
2127     opencv2_core_core_c_h
2128     OpenGL_gl3_h
2129     poll_h
2130     sys_param_h
2131     sys_resource_h
2132     sys_select_h
2133     sys_soundcard_h
2134     sys_time_h
2135     sys_un_h
2136     sys_videoio_h
2137     termios_h
2138     udplite_h
2139     unistd_h
2140     valgrind_valgrind_h
2141     windows_h
2142     winsock2_h
2143 "
2144
2145 INTRINSICS_LIST="
2146     intrinsics_neon
2147 "
2148
2149 COMPLEX_FUNCS="
2150     cabs
2151     cexp
2152 "
2153
2154 MATH_FUNCS="
2155     atanf
2156     atan2f
2157     cbrt
2158     cbrtf
2159     copysign
2160     cosf
2161     erf
2162     exp2
2163     exp2f
2164     expf
2165     hypot
2166     isfinite
2167     isinf
2168     isnan
2169     ldexpf
2170     llrint
2171     llrintf
2172     log2
2173     log2f
2174     log10f
2175     lrint
2176     lrintf
2177     powf
2178     rint
2179     round
2180     roundf
2181     sinf
2182     trunc
2183     truncf
2184 "
2185
2186 SYSTEM_FEATURES="
2187     dos_paths
2188     libc_msvcrt
2189     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2190     section_data_rel_ro
2191     threads
2192     uwp
2193     winrt
2194 "
2195
2196 SYSTEM_FUNCS="
2197     access
2198     aligned_malloc
2199     arc4random
2200     clock_gettime
2201     closesocket
2202     CommandLineToArgvW
2203     fcntl
2204     getaddrinfo
2205     gethrtime
2206     getopt
2207     GetModuleHandle
2208     GetProcessAffinityMask
2209     GetProcessMemoryInfo
2210     GetProcessTimes
2211     getrusage
2212     GetStdHandle
2213     GetSystemTimeAsFileTime
2214     gettimeofday
2215     glob
2216     glXGetProcAddress
2217     gmtime_r
2218     inet_aton
2219     isatty
2220     kbhit
2221     localtime_r
2222     lstat
2223     lzo1x_999_compress
2224     mach_absolute_time
2225     MapViewOfFile
2226     memalign
2227     mkstemp
2228     mmap
2229     mprotect
2230     nanosleep
2231     PeekNamedPipe
2232     posix_memalign
2233     pthread_cancel
2234     sched_getaffinity
2235     SecItemImport
2236     SetConsoleTextAttribute
2237     SetConsoleCtrlHandler
2238     SetDllDirectory
2239     setmode
2240     setrlimit
2241     Sleep
2242     strerror_r
2243     sysconf
2244     sysctl
2245     usleep
2246     UTGetOSTypeFromString
2247     VirtualAlloc
2248     wglGetProcAddress
2249 "
2250
2251 SYSTEM_LIBRARIES="
2252     bcrypt
2253     vaapi_drm
2254     vaapi_x11
2255     vdpau_x11
2256 "
2257
2258 TOOLCHAIN_FEATURES="
2259     as_arch_directive
2260     as_dn_directive
2261     as_fpu_directive
2262     as_func
2263     as_object_arch
2264     asm_mod_q
2265     blocks_extension
2266     ebp_available
2267     ebx_available
2268     gnu_as
2269     gnu_windres
2270     ibm_asm
2271     inline_asm_direct_symbol_refs
2272     inline_asm_labels
2273     inline_asm_nonlocal_labels
2274     pragma_deprecated
2275     rsync_contimeout
2276     symver_asm_label
2277     symver_gnu_asm
2278     vfp_args
2279     xform_asm
2280     xmm_clobbers
2281 "
2282
2283 TYPES_LIST="
2284     kCMVideoCodecType_HEVC
2285     kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange
2286     kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ
2287     kCVImageBufferTransferFunction_ITU_R_2100_HLG
2288     kCVImageBufferTransferFunction_Linear
2289     socklen_t
2290     struct_addrinfo
2291     struct_group_source_req
2292     struct_ip_mreq_source
2293     struct_ipv6_mreq
2294     struct_msghdr_msg_flags
2295     struct_pollfd
2296     struct_rusage_ru_maxrss
2297     struct_sctp_event_subscribe
2298     struct_sockaddr_in6
2299     struct_sockaddr_sa_len
2300     struct_sockaddr_storage
2301     struct_stat_st_mtim_tv_nsec
2302     struct_v4l2_frmivalenum_discrete
2303 "
2304
2305 HAVE_LIST="
2306     $ARCH_EXT_LIST
2307     $(add_suffix _external $ARCH_EXT_LIST)
2308     $(add_suffix _inline   $ARCH_EXT_LIST)
2309     $ARCH_FEATURES
2310     $BUILTIN_LIST
2311     $COMPLEX_FUNCS
2312     $HAVE_LIST_CMDLINE
2313     $HAVE_LIST_PUB
2314     $HEADERS_LIST
2315     $INTRINSICS_LIST
2316     $MATH_FUNCS
2317     $SYSTEM_FEATURES
2318     $SYSTEM_FUNCS
2319     $SYSTEM_LIBRARIES
2320     $THREADS_LIST
2321     $TOOLCHAIN_FEATURES
2322     $TYPES_LIST
2323     makeinfo
2324     makeinfo_html
2325     opencl_d3d11
2326     opencl_drm_arm
2327     opencl_drm_beignet
2328     opencl_dxva2
2329     opencl_vaapi_beignet
2330     opencl_vaapi_intel_media
2331     perl
2332     pod2man
2333     texi2html
2334 "
2335
2336 # options emitted with CONFIG_ prefix but not available on the command line
2337 CONFIG_EXTRA="
2338     aandcttables
2339     ac3dsp
2340     adts_header
2341     audio_frame_queue
2342     audiodsp
2343     blockdsp
2344     bswapdsp
2345     cabac
2346     cbs
2347     cbs_av1
2348     cbs_h264
2349     cbs_h265
2350     cbs_jpeg
2351     cbs_mpeg2
2352     cbs_vp9
2353     dirac_parse
2354     dnn
2355     dvprofile
2356     exif
2357     faandct
2358     faanidct
2359     fdctdsp
2360     flacdsp
2361     fmtconvert
2362     frame_thread_encoder
2363     g722dsp
2364     golomb
2365     gplv3
2366     h263dsp
2367     h264chroma
2368     h264dsp
2369     h264parse
2370     h264pred
2371     h264qpel
2372     hevcparse
2373     hpeldsp
2374     huffman
2375     huffyuvdsp
2376     huffyuvencdsp
2377     idctdsp
2378     iirfilter
2379     mdct15
2380     intrax8
2381     iso_media
2382     ividsp
2383     jpegtables
2384     lgplv3
2385     libx262
2386     llauddsp
2387     llviddsp
2388     llvidencdsp
2389     lpc
2390     lzf
2391     me_cmp
2392     mpeg_er
2393     mpegaudio
2394     mpegaudiodsp
2395     mpegaudioheader
2396     mpegvideo
2397     mpegvideoenc
2398     mss34dsp
2399     pixblockdsp
2400     qpeldsp
2401     qsv
2402     qsvdec
2403     qsvenc
2404     qsvvpp
2405     rangecoder
2406     riffdec
2407     riffenc
2408     rtpdec
2409     rtpenc_chain
2410     rv34dsp
2411     scene_sad
2412     sinewin
2413     snappy
2414     srtp
2415     startcode
2416     texturedsp
2417     texturedspenc
2418     tpeldsp
2419     vaapi_1
2420     vaapi_encode
2421     vc1dsp
2422     videodsp
2423     vp3dsp
2424     vp56dsp
2425     vp8dsp
2426     wma_freqs
2427     wmv2dsp
2428 "
2429
2430 CMDLINE_SELECT="
2431     $ARCH_EXT_LIST
2432     $CONFIG_LIST
2433     $HAVE_LIST_CMDLINE
2434     $THREADS_LIST
2435     asm
2436     cross_compile
2437     debug
2438     extra_warnings
2439     logging
2440     lto
2441     optimizations
2442     rpath
2443     stripping
2444 "
2445
2446 PATHS_LIST="
2447     bindir
2448     datadir
2449     docdir
2450     incdir
2451     libdir
2452     mandir
2453     pkgconfigdir
2454     prefix
2455     shlibdir
2456     install_name_dir
2457 "
2458
2459 CMDLINE_SET="
2460     $PATHS_LIST
2461     ar
2462     arch
2463     as
2464     assert_level
2465     build_suffix
2466     cc
2467     objcc
2468     cpu
2469     cross_prefix
2470     custom_allocator
2471     cxx
2472     dep_cc
2473     doxygen
2474     env
2475     extra_version
2476     gas
2477     host_cc
2478     host_cflags
2479     host_extralibs
2480     host_ld
2481     host_ldflags
2482     host_os
2483     ignore_tests
2484     install
2485     ld
2486     ln_s
2487     logfile
2488     malloc_prefix
2489     nm
2490     optflags
2491     nvcc
2492     nvccflags
2493     pkg_config
2494     pkg_config_flags
2495     progs_suffix
2496     random_seed
2497     ranlib
2498     samples
2499     strip
2500     sws_max_filter_size
2501     sysinclude
2502     sysroot
2503     target_exec
2504     target_os
2505     target_path
2506     target_samples
2507     tempprefix
2508     toolchain
2509     valgrind
2510     windres
2511     x86asmexe
2512 "
2513
2514 CMDLINE_APPEND="
2515     extra_cflags
2516     extra_cxxflags
2517     extra_objcflags
2518     host_cppflags
2519 "
2520
2521 # code dependency declarations
2522
2523 # architecture extensions
2524
2525 armv5te_deps="arm"
2526 armv6_deps="arm"
2527 armv6t2_deps="arm"
2528 armv8_deps="aarch64"
2529 neon_deps_any="aarch64 arm"
2530 intrinsics_neon_deps="neon"
2531 vfp_deps_any="aarch64 arm"
2532 vfpv3_deps="vfp"
2533 setend_deps="arm"
2534
2535 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2536
2537 altivec_deps="ppc"
2538 dcbzl_deps="ppc"
2539 ldbrx_deps="ppc"
2540 ppc4xx_deps="ppc"
2541 vsx_deps="altivec"
2542 power8_deps="vsx"
2543
2544 loongson2_deps="mips"
2545 loongson3_deps="mips"
2546 mips32r2_deps="mips"
2547 mips32r5_deps="mips"
2548 mips32r6_deps="mips"
2549 mips64r2_deps="mips"
2550 mips64r6_deps="mips"
2551 mipsfpu_deps="mips"
2552 mipsdsp_deps="mips"
2553 mipsdspr2_deps="mips"
2554 mmi_deps="mips"
2555 msa_deps="mipsfpu"
2556 msa2_deps="msa"
2557
2558 cpunop_deps="i686"
2559 x86_64_select="i686"
2560 x86_64_suggest="fast_cmov"
2561
2562 amd3dnow_deps="mmx"
2563 amd3dnowext_deps="amd3dnow"
2564 i686_deps="x86"
2565 mmx_deps="x86"
2566 mmxext_deps="mmx"
2567 sse_deps="mmxext"
2568 sse2_deps="sse"
2569 sse3_deps="sse2"
2570 ssse3_deps="sse3"
2571 sse4_deps="ssse3"
2572 sse42_deps="sse4"
2573 aesni_deps="sse42"
2574 avx_deps="sse42"
2575 xop_deps="avx"
2576 fma3_deps="avx"
2577 fma4_deps="avx"
2578 avx2_deps="avx"
2579 avx512_deps="avx2"
2580
2581 mmx_external_deps="x86asm"
2582 mmx_inline_deps="inline_asm x86"
2583 mmx_suggest="mmx_external mmx_inline"
2584
2585 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2586     eval dep=\$${ext}_deps
2587     eval ${ext}_external_deps='"${dep}_external"'
2588     eval ${ext}_inline_deps='"${dep}_inline"'
2589     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2590 done
2591
2592 aligned_stack_if_any="aarch64 ppc x86"
2593 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2594 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2595 fast_unaligned_if_any="aarch64 ppc x86"
2596 simd_align_16_if_any="altivec neon sse"
2597 simd_align_32_if_any="avx"
2598 simd_align_64_if_any="avx512"
2599
2600 # system capabilities
2601 linux_perf_deps="linux_perf_event_h"
2602 symver_if_any="symver_asm_label symver_gnu_asm"
2603 valgrind_backtrace_conflict="optimizations"
2604 valgrind_backtrace_deps="valgrind_valgrind_h"
2605
2606 # threading support
2607 atomics_gcc_if="sync_val_compare_and_swap"
2608 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2609 atomics_win32_if="MemoryBarrier"
2610 atomics_native_if_any="$ATOMICS_LIST"
2611 w32threads_deps="atomics_native"
2612 threads_if_any="$THREADS_LIST"
2613
2614 # subsystems
2615 cbs_av1_select="cbs"
2616 cbs_h264_select="cbs"
2617 cbs_h265_select="cbs"
2618 cbs_jpeg_select="cbs"
2619 cbs_mpeg2_select="cbs"
2620 cbs_vp9_select="cbs"
2621 dct_select="rdft"
2622 dirac_parse_select="golomb"
2623 dnn_suggest="libtensorflow"
2624 error_resilience_select="me_cmp"
2625 faandct_deps="faan"
2626 faandct_select="fdctdsp"
2627 faanidct_deps="faan"
2628 faanidct_select="idctdsp"
2629 h264dsp_select="startcode"
2630 hevcparse_select="golomb"
2631 frame_thread_encoder_deps="encoders threads"
2632 intrax8_select="blockdsp idctdsp"
2633 mdct_select="fft"
2634 mdct15_select="fft"
2635 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2636 mpeg_er_select="error_resilience"
2637 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2638 mpegaudiodsp_select="dct"
2639 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2640 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2641 vc1dsp_select="h264chroma qpeldsp startcode"
2642 rdft_select="fft"
2643
2644 # decoders / encoders
2645 aac_decoder_select="adts_header mdct15 mdct sinewin"
2646 aac_fixed_decoder_select="adts_header mdct sinewin"
2647 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2648 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2649 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2650 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2651 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2652 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2653 acelp_kelvin_decoder_select="audiodsp"
2654 adpcm_g722_decoder_select="g722dsp"
2655 adpcm_g722_encoder_select="g722dsp"
2656 aic_decoder_select="golomb idctdsp"
2657 alac_encoder_select="lpc"
2658 als_decoder_select="bswapdsp"
2659 amrnb_decoder_select="lsp"
2660 amrwb_decoder_select="lsp"
2661 amv_decoder_select="sp5x_decoder exif"
2662 amv_encoder_select="jpegtables mpegvideoenc"
2663 ape_decoder_select="bswapdsp llauddsp"
2664 apng_decoder_deps="zlib"
2665 apng_encoder_deps="zlib"
2666 apng_encoder_select="llvidencdsp"
2667 aptx_decoder_select="audio_frame_queue"
2668 aptx_encoder_select="audio_frame_queue"
2669 aptx_hd_decoder_select="audio_frame_queue"
2670 aptx_hd_encoder_select="audio_frame_queue"
2671 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2672 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2673 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2674 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2675 atrac1_decoder_select="mdct sinewin"
2676 atrac3_decoder_select="mdct"
2677 atrac3al_decoder_select="mdct"
2678 atrac3p_decoder_select="mdct sinewin"
2679 atrac3pal_decoder_select="mdct sinewin"
2680 atrac9_decoder_select="mdct"
2681 avrn_decoder_select="exif jpegtables"
2682 bink_decoder_select="blockdsp hpeldsp"
2683 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2684 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2685 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2686 clearvideo_decoder_select="idctdsp"
2687 cllc_decoder_select="bswapdsp"
2688 comfortnoise_encoder_select="lpc"
2689 cook_decoder_select="audiodsp mdct sinewin"
2690 cscd_decoder_select="lzo"
2691 cscd_decoder_suggest="zlib"
2692 dca_decoder_select="mdct"
2693 dca_encoder_select="mdct"
2694 dds_decoder_select="texturedsp"
2695 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2696 dnxhd_decoder_select="blockdsp idctdsp"
2697 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2698 dolby_e_decoder_select="mdct"
2699 dvvideo_decoder_select="dvprofile idctdsp"
2700 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2701 dxa_decoder_deps="zlib"
2702 dxv_decoder_select="lzf texturedsp"
2703 eac3_decoder_select="ac3_decoder"
2704 eac3_encoder_select="ac3_encoder"
2705 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2706 eatgq_decoder_select="aandcttables"
2707 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2708 exr_decoder_deps="zlib"
2709 ffv1_decoder_select="rangecoder"
2710 ffv1_encoder_select="rangecoder"
2711 ffvhuff_decoder_select="huffyuv_decoder"
2712 ffvhuff_encoder_select="huffyuv_encoder"
2713 fic_decoder_select="golomb"
2714 flac_decoder_select="flacdsp"
2715 flac_encoder_select="bswapdsp flacdsp lpc"
2716 flashsv2_decoder_deps="zlib"
2717 flashsv2_encoder_deps="zlib"
2718 flashsv_decoder_deps="zlib"
2719 flashsv_encoder_deps="zlib"
2720 flv_decoder_select="h263_decoder"
2721 flv_encoder_select="h263_encoder"
2722 fourxm_decoder_select="blockdsp bswapdsp"
2723 fraps_decoder_select="bswapdsp huffman"
2724 g2m_decoder_deps="zlib"
2725 g2m_decoder_select="blockdsp idctdsp jpegtables"
2726 g729_decoder_select="audiodsp"
2727 h261_decoder_select="mpegvideo"
2728 h261_encoder_select="mpegvideoenc"
2729 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2730 h263_encoder_select="h263dsp mpegvideoenc"
2731 h263i_decoder_select="h263_decoder"
2732 h263p_decoder_select="h263_decoder"
2733 h263p_encoder_select="h263_encoder"
2734 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2735 h264_decoder_suggest="error_resilience"
2736 hap_decoder_select="snappy texturedsp"
2737 hap_encoder_deps="libsnappy"
2738 hap_encoder_select="texturedspenc"
2739 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2740 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2741 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2742 hymt_decoder_select="huffyuv_decoder"
2743 iac_decoder_select="imc_decoder"
2744 imc_decoder_select="bswapdsp fft mdct sinewin"
2745 imm4_decoder_select="bswapdsp"
2746 imm5_decoder_select="h264_decoder hevc_decoder"
2747 indeo3_decoder_select="hpeldsp"
2748 indeo4_decoder_select="ividsp"
2749 indeo5_decoder_select="ividsp"
2750 interplay_video_decoder_select="hpeldsp"
2751 jpegls_decoder_select="mjpeg_decoder"
2752 jv_decoder_select="blockdsp"
2753 lagarith_decoder_select="llviddsp"
2754 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2755 lscr_decoder_deps="zlib"
2756 magicyuv_decoder_select="llviddsp"
2757 magicyuv_encoder_select="llvidencdsp"
2758 mdec_decoder_select="blockdsp bswapdsp idctdsp mpegvideo"
2759 metasound_decoder_select="lsp mdct sinewin"
2760 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2761 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2762 mjpeg_encoder_select="jpegtables mpegvideoenc"
2763 mjpegb_decoder_select="mjpeg_decoder"
2764 mlp_decoder_select="mlp_parser"
2765 mlp_encoder_select="lpc audio_frame_queue"
2766 motionpixels_decoder_select="bswapdsp"
2767 mp1_decoder_select="mpegaudio"
2768 mp1float_decoder_select="mpegaudio"
2769 mp2_decoder_select="mpegaudio"
2770 mp2float_decoder_select="mpegaudio"
2771 mp3_decoder_select="mpegaudio"
2772 mp3adu_decoder_select="mpegaudio"
2773 mp3adufloat_decoder_select="mpegaudio"
2774 mp3float_decoder_select="mpegaudio"
2775 mp3on4_decoder_select="mpegaudio"
2776 mp3on4float_decoder_select="mpegaudio"
2777 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2778 mpc8_decoder_select="mpegaudiodsp"
2779 mpegvideo_decoder_select="mpegvideo"
2780 mpeg1video_decoder_select="mpegvideo"
2781 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2782 mpeg2video_decoder_select="mpegvideo"
2783 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2784 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2785 mpeg4_encoder_select="h263_encoder"
2786 msa1_decoder_select="mss34dsp"
2787 mscc_decoder_deps="zlib"
2788 msmpeg4v1_decoder_select="h263_decoder"
2789 msmpeg4v2_decoder_select="h263_decoder"
2790 msmpeg4v2_encoder_select="h263_encoder"
2791 msmpeg4v3_decoder_select="h263_decoder"
2792 msmpeg4v3_encoder_select="h263_encoder"
2793 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2794 mts2_decoder_select="mss34dsp"
2795 mv30_decoder_select="aandcttables blockdsp"
2796 mvha_decoder_deps="zlib"
2797 mvha_decoder_select="llviddsp"
2798 mwsc_decoder_deps="zlib"
2799 mxpeg_decoder_select="mjpeg_decoder"
2800 nellymoser_decoder_select="mdct sinewin"
2801 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2802 notchlc_decoder_select="lzf"
2803 nuv_decoder_select="idctdsp lzo"
2804 on2avc_decoder_select="mdct"
2805 opus_decoder_deps="swresample"
2806 opus_decoder_select="mdct15"
2807 opus_encoder_select="audio_frame_queue mdct15"
2808 png_decoder_deps="zlib"
2809 png_encoder_deps="zlib"
2810 png_encoder_select="llvidencdsp"
2811 prores_decoder_select="blockdsp idctdsp"
2812 prores_encoder_select="fdctdsp"
2813 qcelp_decoder_select="lsp"
2814 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2815 ra_144_decoder_select="audiodsp"
2816 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2817 ralf_decoder_select="golomb"
2818 rasc_decoder_deps="zlib"
2819 rawvideo_decoder_select="bswapdsp"
2820 rscc_decoder_deps="zlib"
2821 rtjpeg_decoder_select="me_cmp"
2822 rv10_decoder_select="h263_decoder"
2823 rv10_encoder_select="h263_encoder"
2824 rv20_decoder_select="h263_decoder"
2825 rv20_encoder_select="h263_encoder"
2826 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2827 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2828 screenpresso_decoder_deps="zlib"
2829 shorten_decoder_select="bswapdsp"
2830 sipr_decoder_select="lsp"
2831 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2832 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2833 sonic_decoder_select="golomb rangecoder"
2834 sonic_encoder_select="golomb rangecoder"
2835 sonic_ls_encoder_select="golomb rangecoder"
2836 sp5x_decoder_select="mjpeg_decoder"
2837 speedhq_decoder_select="mpegvideo"
2838 srgc_decoder_deps="zlib"
2839 svq1_decoder_select="hpeldsp"
2840 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2841 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2842 svq3_decoder_suggest="zlib"
2843 tak_decoder_select="audiodsp"
2844 tdsc_decoder_deps="zlib"
2845 tdsc_decoder_select="mjpeg_decoder"
2846 theora_decoder_select="vp3_decoder"
2847 thp_decoder_select="mjpeg_decoder"
2848 tiff_decoder_select="mjpeg_decoder"
2849 tiff_decoder_suggest="zlib lzma"
2850 tiff_encoder_suggest="zlib"
2851 truehd_decoder_select="mlp_parser"
2852 truehd_encoder_select="lpc audio_frame_queue"
2853 truemotion2_decoder_select="bswapdsp"
2854 truespeech_decoder_select="bswapdsp"
2855 tscc_decoder_deps="zlib"
2856 twinvq_decoder_select="mdct lsp sinewin"
2857 txd_decoder_select="texturedsp"
2858 utvideo_decoder_select="bswapdsp llviddsp"
2859 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2860 vble_decoder_select="llviddsp"
2861 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2862 vc1image_decoder_select="vc1_decoder"
2863 vorbis_decoder_select="mdct"
2864 vorbis_encoder_select="audio_frame_queue mdct"
2865 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2866 vp4_decoder_select="vp3_decoder"
2867 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2868 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2869 vp6a_decoder_select="vp6_decoder"
2870 vp6f_decoder_select="vp6_decoder"
2871 vp7_decoder_select="h264pred videodsp vp8dsp"
2872 vp8_decoder_select="h264pred videodsp vp8dsp"
2873 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2874 wcmv_decoder_deps="zlib"
2875 webp_decoder_select="vp8_decoder exif"
2876 wmalossless_decoder_select="llauddsp"
2877 wmapro_decoder_select="mdct sinewin wma_freqs"
2878 wmav1_decoder_select="mdct sinewin wma_freqs"
2879 wmav1_encoder_select="mdct sinewin wma_freqs"
2880 wmav2_decoder_select="mdct sinewin wma_freqs"
2881 wmav2_encoder_select="mdct sinewin wma_freqs"
2882 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2883 wmv1_decoder_select="h263_decoder"
2884 wmv1_encoder_select="h263_encoder"
2885 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2886 wmv2_encoder_select="h263_encoder wmv2dsp"
2887 wmv3_decoder_select="vc1_decoder"
2888 wmv3image_decoder_select="wmv3_decoder"
2889 xma1_decoder_select="wmapro_decoder"
2890 xma2_decoder_select="wmapro_decoder"
2891 ylc_decoder_select="bswapdsp"
2892 zerocodec_decoder_deps="zlib"
2893 zlib_decoder_deps="zlib"
2894 zlib_encoder_deps="zlib"
2895 zmbv_decoder_deps="zlib"
2896 zmbv_encoder_deps="zlib"
2897
2898 # hardware accelerators
2899 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2900 cuda_deps="ffnvcodec"
2901 cuvid_deps="ffnvcodec"
2902 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2903 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2904 ffnvcodec_deps_any="libdl LoadLibrary"
2905 nvdec_deps="ffnvcodec"
2906 vaapi_x11_deps="xlib"
2907 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2908 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2909 xvmc_deps="X11_extensions_XvMClib_h"
2910
2911 h263_vaapi_hwaccel_deps="vaapi"
2912 h263_vaapi_hwaccel_select="h263_decoder"
2913 h263_videotoolbox_hwaccel_deps="videotoolbox"
2914 h263_videotoolbox_hwaccel_select="h263_decoder"
2915 h264_d3d11va_hwaccel_deps="d3d11va"
2916 h264_d3d11va_hwaccel_select="h264_decoder"
2917 h264_d3d11va2_hwaccel_deps="d3d11va"
2918 h264_d3d11va2_hwaccel_select="h264_decoder"
2919 h264_dxva2_hwaccel_deps="dxva2"
2920 h264_dxva2_hwaccel_select="h264_decoder"
2921 h264_nvdec_hwaccel_deps="nvdec"
2922 h264_nvdec_hwaccel_select="h264_decoder"
2923 h264_vaapi_hwaccel_deps="vaapi"
2924 h264_vaapi_hwaccel_select="h264_decoder"
2925 h264_vdpau_hwaccel_deps="vdpau"
2926 h264_vdpau_hwaccel_select="h264_decoder"
2927 h264_videotoolbox_hwaccel_deps="videotoolbox"
2928 h264_videotoolbox_hwaccel_select="h264_decoder"
2929 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2930 hevc_d3d11va_hwaccel_select="hevc_decoder"
2931 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2932 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2933 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2934 hevc_dxva2_hwaccel_select="hevc_decoder"
2935 hevc_nvdec_hwaccel_deps="nvdec"
2936 hevc_nvdec_hwaccel_select="hevc_decoder"
2937 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2938 hevc_vaapi_hwaccel_select="hevc_decoder"
2939 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2940 hevc_vdpau_hwaccel_select="hevc_decoder"
2941 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2942 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2943 mjpeg_nvdec_hwaccel_deps="nvdec"
2944 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2945 mjpeg_vaapi_hwaccel_deps="vaapi"
2946 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2947 mpeg_xvmc_hwaccel_deps="xvmc"
2948 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2949 mpeg1_nvdec_hwaccel_deps="nvdec"
2950 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2951 mpeg1_vdpau_hwaccel_deps="vdpau"
2952 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2953 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2954 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2955 mpeg1_xvmc_hwaccel_deps="xvmc"
2956 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2957 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2958 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2959 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2960 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2961 mpeg2_dxva2_hwaccel_deps="dxva2"
2962 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2963 mpeg2_nvdec_hwaccel_deps="nvdec"
2964 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2965 mpeg2_vaapi_hwaccel_deps="vaapi"
2966 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2967 mpeg2_vdpau_hwaccel_deps="vdpau"
2968 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2969 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2970 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2971 mpeg2_xvmc_hwaccel_deps="xvmc"
2972 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2973 mpeg4_nvdec_hwaccel_deps="nvdec"
2974 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2975 mpeg4_vaapi_hwaccel_deps="vaapi"
2976 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2977 mpeg4_vdpau_hwaccel_deps="vdpau"
2978 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2979 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2980 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2981 vc1_d3d11va_hwaccel_deps="d3d11va"
2982 vc1_d3d11va_hwaccel_select="vc1_decoder"
2983 vc1_d3d11va2_hwaccel_deps="d3d11va"
2984 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2985 vc1_dxva2_hwaccel_deps="dxva2"
2986 vc1_dxva2_hwaccel_select="vc1_decoder"
2987 vc1_nvdec_hwaccel_deps="nvdec"
2988 vc1_nvdec_hwaccel_select="vc1_decoder"
2989 vc1_vaapi_hwaccel_deps="vaapi"
2990 vc1_vaapi_hwaccel_select="vc1_decoder"
2991 vc1_vdpau_hwaccel_deps="vdpau"
2992 vc1_vdpau_hwaccel_select="vc1_decoder"
2993 vp8_nvdec_hwaccel_deps="nvdec"
2994 vp8_nvdec_hwaccel_select="vp8_decoder"
2995 vp8_vaapi_hwaccel_deps="vaapi"
2996 vp8_vaapi_hwaccel_select="vp8_decoder"
2997 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2998 vp9_d3d11va_hwaccel_select="vp9_decoder"
2999 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
3000 vp9_d3d11va2_hwaccel_select="vp9_decoder"
3001 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
3002 vp9_dxva2_hwaccel_select="vp9_decoder"
3003 vp9_nvdec_hwaccel_deps="nvdec"
3004 vp9_nvdec_hwaccel_select="vp9_decoder"
3005 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
3006 vp9_vaapi_hwaccel_select="vp9_decoder"
3007 vp9_vdpau_hwaccel_deps="vdpau VdpPictureInfoVP9"
3008 vp9_vdpau_hwaccel_select="vp9_decoder"
3009 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
3010 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
3011 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
3012 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
3013 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
3014 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
3015
3016 # hardware-accelerated codecs
3017 mediafoundation_deps="mftransform_h MFCreateAlignedMemoryBuffer"
3018 mediafoundation_extralibs="-lmfplat -lmfuuid -lole32 -lstrmiids"
3019 omx_deps="libdl pthreads"
3020 omx_rpi_select="omx"
3021 qsv_deps="libmfx"
3022 qsvdec_select="qsv"
3023 qsvenc_select="qsv"
3024 qsvvpp_select="qsv"
3025 vaapi_encode_deps="vaapi"
3026 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
3027
3028 hwupload_cuda_filter_deps="ffnvcodec"
3029 scale_npp_filter_deps="ffnvcodec libnpp"
3030 scale_cuda_filter_deps="ffnvcodec"
3031 scale_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3032 thumbnail_cuda_filter_deps="ffnvcodec"
3033 thumbnail_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3034 transpose_npp_filter_deps="ffnvcodec libnpp"
3035 overlay_cuda_filter_deps="ffnvcodec"
3036 overlay_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3037
3038 amf_deps_any="libdl LoadLibrary"
3039 nvenc_deps="ffnvcodec"
3040 nvenc_deps_any="libdl LoadLibrary"
3041 nvenc_encoder_deps="nvenc"
3042
3043 aac_mf_encoder_deps="mediafoundation"
3044 ac3_mf_encoder_deps="mediafoundation"
3045 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
3046 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
3047 h264_amf_encoder_deps="amf"
3048 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
3049 h264_cuvid_decoder_deps="cuvid"
3050 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
3051 h264_mediacodec_decoder_deps="mediacodec"
3052 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
3053 h264_mf_encoder_deps="mediafoundation"
3054 h264_mmal_decoder_deps="mmal"
3055 h264_nvenc_encoder_deps="nvenc"
3056 h264_omx_encoder_deps="omx"
3057 h264_qsv_decoder_select="h264_mp4toannexb_bsf qsvdec"
3058 h264_qsv_encoder_select="qsvenc"
3059 h264_rkmpp_decoder_deps="rkmpp"
3060 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
3061 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
3062 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
3063 h264_v4l2m2m_decoder_select="h264_mp4toannexb_bsf"
3064 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
3065 hevc_amf_encoder_deps="amf"
3066 hevc_cuvid_decoder_deps="cuvid"
3067 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
3068 hevc_mediacodec_decoder_deps="mediacodec"
3069 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
3070 hevc_mf_encoder_deps="mediafoundation"
3071 hevc_nvenc_encoder_deps="nvenc"
3072 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf qsvdec"
3073 hevc_qsv_encoder_select="hevcparse qsvenc"
3074 hevc_rkmpp_decoder_deps="rkmpp"
3075 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
3076 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
3077 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
3078 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
3079 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
3080 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
3081 mjpeg_cuvid_decoder_deps="cuvid"
3082 mjpeg_qsv_decoder_select="qsvdec"
3083 mjpeg_qsv_encoder_deps="libmfx"
3084 mjpeg_qsv_encoder_select="qsvenc"
3085 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
3086 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
3087 mp3_mf_encoder_deps="mediafoundation"
3088 mpeg1_cuvid_decoder_deps="cuvid"
3089 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
3090 mpeg2_crystalhd_decoder_select="crystalhd"
3091 mpeg2_cuvid_decoder_deps="cuvid"
3092 mpeg2_mmal_decoder_deps="mmal"
3093 mpeg2_mediacodec_decoder_deps="mediacodec"
3094 mpeg2_qsv_decoder_select="qsvdec"
3095 mpeg2_qsv_encoder_select="qsvenc"
3096 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
3097 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
3098 mpeg4_crystalhd_decoder_select="crystalhd"
3099 mpeg4_cuvid_decoder_deps="cuvid"
3100 mpeg4_mediacodec_decoder_deps="mediacodec"
3101 mpeg4_mmal_decoder_deps="mmal"
3102 mpeg4_omx_encoder_deps="omx"
3103 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3104 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
3105 msmpeg4_crystalhd_decoder_select="crystalhd"
3106 nvenc_h264_encoder_select="h264_nvenc_encoder"
3107 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3108 vc1_crystalhd_decoder_select="crystalhd"
3109 vc1_cuvid_decoder_deps="cuvid"
3110 vc1_mmal_decoder_deps="mmal"
3111 vc1_qsv_decoder_select="qsvdec"
3112 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3113 vp8_cuvid_decoder_deps="cuvid"
3114 vp8_mediacodec_decoder_deps="mediacodec"
3115 vp8_qsv_decoder_select="qsvdec"
3116 vp8_rkmpp_decoder_deps="rkmpp"
3117 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3118 vp8_vaapi_encoder_select="vaapi_encode"
3119 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3120 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3121 vp9_cuvid_decoder_deps="cuvid"
3122 vp9_mediacodec_decoder_deps="mediacodec"
3123 vp9_qsv_decoder_select="qsvdec"
3124 vp9_rkmpp_decoder_deps="rkmpp"
3125 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3126 vp9_vaapi_encoder_select="vaapi_encode"
3127 vp9_qsv_encoder_deps="libmfx MFX_CODEC_VP9"
3128 vp9_qsv_encoder_select="qsvenc"
3129 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3130 wmv3_crystalhd_decoder_select="crystalhd"
3131
3132 # parsers
3133 aac_parser_select="adts_header"
3134 av1_parser_select="cbs_av1"
3135 h264_parser_select="golomb h264dsp h264parse"
3136 hevc_parser_select="hevcparse"
3137 mpegaudio_parser_select="mpegaudioheader"
3138 mpegvideo_parser_select="mpegvideo"
3139 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3140 vc1_parser_select="vc1dsp"
3141
3142 # bitstream_filters
3143 aac_adtstoasc_bsf_select="adts_header"
3144 av1_frame_merge_bsf_select="cbs_av1"
3145 av1_frame_split_bsf_select="cbs_av1"
3146 av1_metadata_bsf_select="cbs_av1"
3147 eac3_core_bsf_select="ac3_parser"
3148 filter_units_bsf_select="cbs"
3149 h264_metadata_bsf_deps="const_nan"
3150 h264_metadata_bsf_select="cbs_h264"
3151 h264_redundant_pps_bsf_select="cbs_h264"
3152 hevc_metadata_bsf_select="cbs_h265"
3153 mjpeg2jpeg_bsf_select="jpegtables"
3154 mpeg2_metadata_bsf_select="cbs_mpeg2"
3155 trace_headers_bsf_select="cbs"
3156 vp9_metadata_bsf_select="cbs_vp9"
3157
3158 # external libraries
3159 aac_at_decoder_deps="audiotoolbox"
3160 aac_at_decoder_select="aac_adtstoasc_bsf"
3161 ac3_at_decoder_deps="audiotoolbox"
3162 ac3_at_decoder_select="ac3_parser"
3163 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3164 alac_at_decoder_deps="audiotoolbox"
3165 amr_nb_at_decoder_deps="audiotoolbox"
3166 avisynth_deps_any="libdl LoadLibrary"
3167 avisynth_demuxer_deps="avisynth"
3168 avisynth_demuxer_select="riffdec"
3169 eac3_at_decoder_deps="audiotoolbox"
3170 eac3_at_decoder_select="ac3_parser"
3171 gsm_ms_at_decoder_deps="audiotoolbox"
3172 ilbc_at_decoder_deps="audiotoolbox"
3173 mp1_at_decoder_deps="audiotoolbox"
3174 mp2_at_decoder_deps="audiotoolbox"
3175 mp3_at_decoder_deps="audiotoolbox"
3176 mp1_at_decoder_select="mpegaudioheader"
3177 mp2_at_decoder_select="mpegaudioheader"
3178 mp3_at_decoder_select="mpegaudioheader"
3179 pcm_alaw_at_decoder_deps="audiotoolbox"
3180 pcm_mulaw_at_decoder_deps="audiotoolbox"
3181 qdmc_decoder_select="fft"
3182 qdmc_at_decoder_deps="audiotoolbox"
3183 qdm2_at_decoder_deps="audiotoolbox"
3184 aac_at_encoder_deps="audiotoolbox"
3185 aac_at_encoder_select="audio_frame_queue"
3186 alac_at_encoder_deps="audiotoolbox"
3187 alac_at_encoder_select="audio_frame_queue"
3188 ilbc_at_encoder_deps="audiotoolbox"
3189 ilbc_at_encoder_select="audio_frame_queue"
3190 pcm_alaw_at_encoder_deps="audiotoolbox"
3191 pcm_alaw_at_encoder_select="audio_frame_queue"
3192 pcm_mulaw_at_encoder_deps="audiotoolbox"
3193 pcm_mulaw_at_encoder_select="audio_frame_queue"
3194 chromaprint_muxer_deps="chromaprint"
3195 h264_videotoolbox_encoder_deps="pthreads"
3196 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3197 hevc_videotoolbox_encoder_deps="pthreads"
3198 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3199 libaom_av1_decoder_deps="libaom"
3200 libaom_av1_encoder_deps="libaom"
3201 libaom_av1_encoder_select="extract_extradata_bsf"
3202 libaribb24_decoder_deps="libaribb24"
3203 libcelt_decoder_deps="libcelt"
3204 libcodec2_decoder_deps="libcodec2"
3205 libcodec2_encoder_deps="libcodec2"
3206 libdav1d_decoder_deps="libdav1d"
3207 libdavs2_decoder_deps="libdavs2"
3208 libfdk_aac_decoder_deps="libfdk_aac"
3209 libfdk_aac_encoder_deps="libfdk_aac"
3210 libfdk_aac_encoder_select="audio_frame_queue"
3211 libgme_demuxer_deps="libgme"
3212 libgsm_decoder_deps="libgsm"
3213 libgsm_encoder_deps="libgsm"
3214 libgsm_ms_decoder_deps="libgsm"
3215 libgsm_ms_encoder_deps="libgsm"
3216 libilbc_decoder_deps="libilbc"
3217 libilbc_encoder_deps="libilbc"
3218 libkvazaar_encoder_deps="libkvazaar"
3219 libmodplug_demuxer_deps="libmodplug"
3220 libmp3lame_encoder_deps="libmp3lame"
3221 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3222 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3223 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3224 libopencore_amrnb_encoder_select="audio_frame_queue"
3225 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3226 libopenh264_decoder_deps="libopenh264"
3227 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3228 libopenh264_encoder_deps="libopenh264"
3229 libopenjpeg_decoder_deps="libopenjpeg"
3230 libopenjpeg_encoder_deps="libopenjpeg"
3231 libopenmpt_demuxer_deps="libopenmpt"
3232 libopus_decoder_deps="libopus"
3233 libopus_encoder_deps="libopus"
3234 libopus_encoder_select="audio_frame_queue"
3235 librav1e_encoder_deps="librav1e"
3236 librav1e_encoder_select="extract_extradata_bsf"
3237 librsvg_decoder_deps="librsvg"
3238 libshine_encoder_deps="libshine"
3239 libshine_encoder_select="audio_frame_queue"
3240 libspeex_decoder_deps="libspeex"
3241 libspeex_encoder_deps="libspeex"
3242 libspeex_encoder_select="audio_frame_queue"
3243 libtheora_encoder_deps="libtheora"
3244 libtwolame_encoder_deps="libtwolame"
3245 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3246 libvorbis_decoder_deps="libvorbis"
3247 libvorbis_encoder_deps="libvorbis libvorbisenc"
3248 libvorbis_encoder_select="audio_frame_queue"
3249 libvpx_vp8_decoder_deps="libvpx"
3250 libvpx_vp8_encoder_deps="libvpx"
3251 libvpx_vp9_decoder_deps="libvpx"
3252 libvpx_vp9_encoder_deps="libvpx"
3253 libwavpack_encoder_deps="libwavpack"
3254 libwavpack_encoder_select="audio_frame_queue"
3255 libwebp_encoder_deps="libwebp"
3256 libwebp_anim_encoder_deps="libwebp"
3257 libx262_encoder_deps="libx262"
3258 libx264_encoder_deps="libx264"
3259 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3260 libx264rgb_encoder_select="libx264_encoder"
3261 libx265_encoder_deps="libx265"
3262 libxavs_encoder_deps="libxavs"
3263 libxavs2_encoder_deps="libxavs2"
3264 libxvid_encoder_deps="libxvid"
3265 libzvbi_teletext_decoder_deps="libzvbi"
3266 vapoursynth_demuxer_deps="vapoursynth"
3267 videotoolbox_suggest="coreservices"
3268 videotoolbox_deps="corefoundation coremedia corevideo"
3269 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3270
3271 # demuxers / muxers
3272 ac3_demuxer_select="ac3_parser"
3273 act_demuxer_select="riffdec"
3274 aiff_muxer_select="iso_media"
3275 asf_demuxer_select="riffdec"
3276 asf_o_demuxer_select="riffdec"
3277 asf_muxer_select="riffenc"
3278 asf_stream_muxer_select="asf_muxer"
3279 av1_demuxer_select="av1_frame_merge_bsf av1_parser"
3280 avi_demuxer_select="iso_media riffdec exif"
3281 avi_muxer_select="riffenc"
3282 caf_demuxer_select="iso_media riffdec"
3283 caf_muxer_select="iso_media"
3284 dash_muxer_select="mp4_muxer"
3285 dash_demuxer_deps="libxml2"
3286 dirac_demuxer_select="dirac_parser"
3287 dts_demuxer_select="dca_parser"
3288 dtshd_demuxer_select="dca_parser"
3289 dv_demuxer_select="dvprofile"
3290 dv_muxer_select="dvprofile"
3291 dxa_demuxer_select="riffdec"
3292 eac3_demuxer_select="ac3_parser"
3293 f4v_muxer_select="mov_muxer"
3294 fifo_muxer_deps="threads"
3295 flac_demuxer_select="flac_parser"
3296 flv_muxer_select="aac_adtstoasc_bsf"
3297 gxf_muxer_select="pcm_rechunk_bsf"
3298 hds_muxer_select="flv_muxer"
3299 hls_muxer_select="mpegts_muxer"
3300 hls_muxer_suggest="gcrypt openssl"
3301 image2_alias_pix_demuxer_select="image2_demuxer"
3302 image2_brender_pix_demuxer_select="image2_demuxer"
3303 ipod_muxer_select="mov_muxer"
3304 ismv_muxer_select="mov_muxer"
3305 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3306 latm_muxer_select="aac_adtstoasc_bsf"
3307 matroska_audio_muxer_select="matroska_muxer"
3308 matroska_demuxer_select="iso_media riffdec"
3309 matroska_demuxer_suggest="bzlib lzo zlib"
3310 matroska_muxer_select="iso_media riffenc vp9_superframe_bsf aac_adtstoasc_bsf"
3311 mlp_demuxer_select="mlp_parser"
3312 mmf_muxer_select="riffenc"
3313 mov_demuxer_select="iso_media riffdec"
3314 mov_demuxer_suggest="zlib"
3315 mov_muxer_select="iso_media riffenc rtpenc_chain vp9_superframe_bsf aac_adtstoasc_bsf"
3316 mp3_demuxer_select="mpegaudio_parser"
3317 mp3_muxer_select="mpegaudioheader"
3318 mp4_muxer_select="mov_muxer"
3319 mpegts_demuxer_select="iso_media"
3320 mpegts_muxer_select="adts_muxer latm_muxer h264_mp4toannexb_bsf hevc_mp4toannexb_bsf"
3321 mpegtsraw_demuxer_select="mpegts_demuxer"
3322 mxf_muxer_select="golomb pcm_rechunk_bsf"
3323 mxf_d10_muxer_select="mxf_muxer"
3324 mxf_opatom_muxer_select="mxf_muxer"
3325 nut_muxer_select="riffenc"
3326 nuv_demuxer_select="riffdec"
3327 oga_muxer_select="ogg_muxer"
3328 ogg_demuxer_select="dirac_parse"
3329 ogv_muxer_select="ogg_muxer"
3330 opus_muxer_select="ogg_muxer"
3331 psp_muxer_select="mov_muxer"
3332 rtp_demuxer_select="sdp_demuxer"
3333 rtp_muxer_select="golomb jpegtables"
3334 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3335 rtsp_demuxer_select="http_protocol rtpdec"
3336 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3337 sap_demuxer_select="sdp_demuxer"
3338 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3339 sdp_demuxer_select="rtpdec"
3340 smoothstreaming_muxer_select="ismv_muxer"
3341 spdif_demuxer_select="adts_header"
3342 spdif_muxer_select="adts_header"
3343 spx_muxer_select="ogg_muxer"
3344 swf_demuxer_suggest="zlib"
3345 tak_demuxer_select="tak_parser"
3346 truehd_demuxer_select="mlp_parser"
3347 tg2_muxer_select="mov_muxer"
3348 tgp_muxer_select="mov_muxer"
3349 vobsub_demuxer_select="mpegps_demuxer"
3350 w64_demuxer_select="wav_demuxer"
3351 w64_muxer_select="wav_muxer"
3352 wav_demuxer_select="riffdec"
3353 wav_muxer_select="riffenc"
3354 webm_chunk_muxer_select="webm_muxer"
3355 webm_muxer_select="iso_media riffenc"
3356 webm_dash_manifest_demuxer_select="matroska_demuxer"
3357 wtv_demuxer_select="mpegts_demuxer riffdec"
3358 wtv_muxer_select="mpegts_muxer riffenc"
3359 xmv_demuxer_select="riffdec"
3360 xwma_demuxer_select="riffdec"
3361
3362 # indevs / outdevs
3363 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3364 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3365 alsa_indev_deps="alsa"
3366 alsa_outdev_deps="alsa"
3367 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3368 avfoundation_indev_suggest="coregraphics applicationservices"
3369 avfoundation_indev_extralibs="-framework Foundation"
3370 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3371 caca_outdev_deps="libcaca"
3372 decklink_deps_any="libdl LoadLibrary"
3373 decklink_indev_deps="decklink threads"
3374 decklink_indev_extralibs="-lstdc++"
3375 decklink_outdev_deps="decklink threads"
3376 decklink_outdev_suggest="libklvanc"
3377 decklink_outdev_extralibs="-lstdc++"
3378 dshow_indev_deps="IBaseFilter"
3379 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3380 fbdev_indev_deps="linux_fb_h"
3381 fbdev_outdev_deps="linux_fb_h"
3382 gdigrab_indev_deps="CreateDIBSection"
3383 gdigrab_indev_extralibs="-lgdi32"
3384 gdigrab_indev_select="bmp_decoder"
3385 iec61883_indev_deps="libiec61883"
3386 jack_indev_deps="libjack"
3387 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3388 kmsgrab_indev_deps="libdrm"
3389 lavfi_indev_deps="avfilter"
3390 libcdio_indev_deps="libcdio"
3391 libdc1394_indev_deps="libdc1394"
3392 openal_indev_deps="openal"
3393 opengl_outdev_deps="opengl"
3394 opengl_outdev_suggest="sdl2"
3395 oss_indev_deps_any="sys_soundcard_h"
3396 oss_outdev_deps_any="sys_soundcard_h"
3397 pulse_indev_deps="libpulse"
3398 pulse_outdev_deps="libpulse"
3399 sdl2_outdev_deps="sdl2"
3400 sndio_indev_deps="sndio"
3401 sndio_outdev_deps="sndio"
3402 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3403 v4l2_indev_suggest="libv4l2"
3404 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3405 v4l2_outdev_suggest="libv4l2"
3406 vfwcap_indev_deps="vfw32 vfwcap_defines"
3407 xcbgrab_indev_deps="libxcb"
3408 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3409 xv_outdev_deps="xlib"
3410
3411 # protocols
3412 async_protocol_deps="threads"
3413 bluray_protocol_deps="libbluray"
3414 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3415 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3416 ffrtmpcrypt_protocol_select="tcp_protocol"
3417 ffrtmphttp_protocol_conflict="librtmp_protocol"
3418 ffrtmphttp_protocol_select="http_protocol"
3419 ftp_protocol_select="tcp_protocol"
3420 gopher_protocol_select="network"
3421 http_protocol_select="tcp_protocol"
3422 http_protocol_suggest="zlib"
3423 httpproxy_protocol_select="tcp_protocol"
3424 httpproxy_protocol_suggest="zlib"
3425 https_protocol_select="tls_protocol"
3426 https_protocol_suggest="zlib"
3427 icecast_protocol_select="http_protocol"
3428 mmsh_protocol_select="http_protocol"
3429 mmst_protocol_select="network"
3430 rtmp_protocol_conflict="librtmp_protocol"
3431 rtmp_protocol_select="tcp_protocol"
3432 rtmp_protocol_suggest="zlib"
3433 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3434 rtmpe_protocol_suggest="zlib"
3435 rtmps_protocol_conflict="librtmp_protocol"
3436 rtmps_protocol_select="tls_protocol"
3437 rtmps_protocol_suggest="zlib"
3438 rtmpt_protocol_select="ffrtmphttp_protocol"
3439 rtmpt_protocol_suggest="zlib"
3440 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3441 rtmpte_protocol_suggest="zlib"
3442 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3443 rtmpts_protocol_suggest="zlib"
3444 rtp_protocol_select="udp_protocol"
3445 schannel_conflict="openssl gnutls libtls mbedtls"
3446 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3447 sctp_protocol_select="network"
3448 securetransport_conflict="openssl gnutls libtls mbedtls"
3449 srtp_protocol_select="rtp_protocol srtp"
3450 tcp_protocol_select="network"
3451 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3452 tls_protocol_select="tcp_protocol"
3453 udp_protocol_select="network"
3454 udplite_protocol_select="network"
3455 unix_protocol_deps="sys_un_h"
3456 unix_protocol_select="network"
3457
3458 # external library protocols
3459 libamqp_protocol_deps="librabbitmq"
3460 libamqp_protocol_select="network"
3461 librtmp_protocol_deps="librtmp"
3462 librtmpe_protocol_deps="librtmp"
3463 librtmps_protocol_deps="librtmp"
3464 librtmpt_protocol_deps="librtmp"
3465 librtmpte_protocol_deps="librtmp"
3466 libsmbclient_protocol_deps="libsmbclient gplv3"
3467 libsrt_protocol_deps="libsrt"
3468 libsrt_protocol_select="network"
3469 libssh_protocol_deps="libssh"
3470 libtls_conflict="openssl gnutls mbedtls"
3471 libzmq_protocol_deps="libzmq"
3472 libzmq_protocol_select="network"
3473
3474 # filters
3475 afftdn_filter_deps="avcodec"
3476 afftdn_filter_select="fft"
3477 afftfilt_filter_deps="avcodec"
3478 afftfilt_filter_select="fft"
3479 afir_filter_deps="avcodec"
3480 afir_filter_select="rdft"
3481 amovie_filter_deps="avcodec avformat"
3482 aresample_filter_deps="swresample"
3483 asr_filter_deps="pocketsphinx"
3484 ass_filter_deps="libass"
3485 atempo_filter_deps="avcodec"
3486 atempo_filter_select="rdft"
3487 avgblur_opencl_filter_deps="opencl"
3488 avgblur_vulkan_filter_deps="vulkan libglslang"
3489 azmq_filter_deps="libzmq"
3490 blackframe_filter_deps="gpl"
3491 bm3d_filter_deps="avcodec"
3492 bm3d_filter_select="dct"
3493 boxblur_filter_deps="gpl"
3494 boxblur_opencl_filter_deps="opencl gpl"
3495 bs2b_filter_deps="libbs2b"
3496 chromaber_vulkan_filter_deps="vulkan libglslang"
3497 colorkey_opencl_filter_deps="opencl"
3498 colormatrix_filter_deps="gpl"
3499 convolution_opencl_filter_deps="opencl"
3500 convolve_filter_deps="avcodec"
3501 convolve_filter_select="fft"
3502 coreimage_filter_deps="coreimage appkit"
3503 coreimage_filter_extralibs="-framework OpenGL"
3504 coreimagesrc_filter_deps="coreimage appkit"
3505 coreimagesrc_filter_extralibs="-framework OpenGL"
3506 cover_rect_filter_deps="avcodec avformat gpl"
3507 cropdetect_filter_deps="gpl"
3508 deconvolve_filter_deps="avcodec"
3509 deconvolve_filter_select="fft"
3510 deinterlace_qsv_filter_deps="libmfx"
3511 deinterlace_vaapi_filter_deps="vaapi"
3512 delogo_filter_deps="gpl"
3513 denoise_vaapi_filter_deps="vaapi"
3514 derain_filter_select="dnn"
3515 deshake_filter_select="pixelutils"
3516 deshake_opencl_filter_deps="opencl"
3517 dilation_opencl_filter_deps="opencl"
3518 dnn_processing_filter_deps="swscale"
3519 dnn_processing_filter_select="dnn"
3520 drawtext_filter_deps="libfreetype"
3521 drawtext_filter_suggest="libfontconfig libfribidi"
3522 elbg_filter_deps="avcodec"
3523 eq_filter_deps="gpl"
3524 erosion_opencl_filter_deps="opencl"
3525 fftfilt_filter_deps="avcodec"
3526 fftfilt_filter_select="rdft"
3527 fftdnoiz_filter_deps="avcodec"
3528 fftdnoiz_filter_select="fft"
3529 find_rect_filter_deps="avcodec avformat gpl"
3530 firequalizer_filter_deps="avcodec"
3531 firequalizer_filter_select="rdft"
3532 flite_filter_deps="libflite"
3533 framerate_filter_select="scene_sad"
3534 freezedetect_filter_select="scene_sad"
3535 frei0r_filter_deps="frei0r libdl"
3536 frei0r_src_filter_deps="frei0r libdl"
3537 fspp_filter_deps="gpl"
3538 headphone_filter_select="fft"
3539 histeq_filter_deps="gpl"
3540 hqdn3d_filter_deps="gpl"
3541 interlace_filter_deps="gpl"
3542 kerndeint_filter_deps="gpl"
3543 ladspa_filter_deps="ladspa libdl"
3544 lensfun_filter_deps="liblensfun version3"
3545 lv2_filter_deps="lv2"
3546 mcdeint_filter_deps="avcodec gpl"
3547 movie_filter_deps="avcodec avformat"
3548 mpdecimate_filter_deps="gpl"
3549 mpdecimate_filter_select="pixelutils"
3550 minterpolate_filter_select="scene_sad"
3551 mptestsrc_filter_deps="gpl"
3552 negate_filter_deps="lut_filter"
3553 nlmeans_opencl_filter_deps="opencl"
3554 nnedi_filter_deps="gpl"
3555 ocr_filter_deps="libtesseract"
3556 ocv_filter_deps="libopencv"
3557 openclsrc_filter_deps="opencl"
3558 overlay_opencl_filter_deps="opencl"
3559 overlay_qsv_filter_deps="libmfx"
3560 overlay_qsv_filter_select="qsvvpp"
3561 overlay_vulkan_filter_deps="vulkan libglslang"
3562 owdenoise_filter_deps="gpl"
3563 pad_opencl_filter_deps="opencl"
3564 pan_filter_deps="swresample"
3565 perspective_filter_deps="gpl"
3566 phase_filter_deps="gpl"
3567 pp7_filter_deps="gpl"
3568 pp_filter_deps="gpl postproc"
3569 prewitt_opencl_filter_deps="opencl"
3570 procamp_vaapi_filter_deps="vaapi"
3571 program_opencl_filter_deps="opencl"
3572 pullup_filter_deps="gpl"
3573 removelogo_filter_deps="avcodec avformat swscale"
3574 repeatfields_filter_deps="gpl"
3575 resample_filter_deps="avresample"
3576 roberts_opencl_filter_deps="opencl"
3577 rubberband_filter_deps="librubberband"
3578 sab_filter_deps="gpl swscale"
3579 scale2ref_filter_deps="swscale"
3580 scale_filter_deps="swscale"
3581 scale_qsv_filter_deps="libmfx"
3582 scdet_filter_select="scene_sad"
3583 select_filter_select="scene_sad"
3584 sharpness_vaapi_filter_deps="vaapi"
3585 showcqt_filter_deps="avcodec avformat swscale"
3586 showcqt_filter_suggest="libfontconfig libfreetype"
3587 showcqt_filter_select="fft"
3588 showfreqs_filter_deps="avcodec"
3589 showfreqs_filter_select="fft"
3590 showspatial_filter_select="fft"
3591 showspectrum_filter_deps="avcodec"
3592 showspectrum_filter_select="fft"
3593 showspectrumpic_filter_deps="avcodec"
3594 showspectrumpic_filter_select="fft"
3595 signature_filter_deps="gpl avcodec avformat"
3596 sinc_filter_select="rdft"
3597 smartblur_filter_deps="gpl swscale"
3598 sobel_opencl_filter_deps="opencl"
3599 sofalizer_filter_deps="libmysofa avcodec"
3600 sofalizer_filter_select="fft"
3601 spectrumsynth_filter_deps="avcodec"
3602 spectrumsynth_filter_select="fft"
3603 spp_filter_deps="gpl avcodec"
3604 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3605 sr_filter_deps="avformat swscale"
3606 sr_filter_select="dnn"
3607 stereo3d_filter_deps="gpl"
3608 subtitles_filter_deps="avformat avcodec libass"
3609 super2xsai_filter_deps="gpl"
3610 pixfmts_super2xsai_test_deps="super2xsai_filter"
3611 superequalizer_filter_select="rdft"
3612 surround_filter_select="rdft"
3613 tinterlace_filter_deps="gpl"
3614 tinterlace_merge_test_deps="tinterlace_filter"
3615 tinterlace_pad_test_deps="tinterlace_filter"
3616 tonemap_filter_deps="const_nan"
3617 tonemap_vaapi_filter_deps="vaapi VAProcFilterParameterBufferHDRToneMapping"
3618 tonemap_opencl_filter_deps="opencl const_nan"
3619 transpose_opencl_filter_deps="opencl"
3620 transpose_vaapi_filter_deps="vaapi VAProcPipelineCaps_rotation_flags"
3621 unsharp_opencl_filter_deps="opencl"
3622 uspp_filter_deps="gpl avcodec"
3623 vaguedenoiser_filter_deps="gpl"
3624 vidstabdetect_filter_deps="libvidstab"
3625 vidstabtransform_filter_deps="libvidstab"
3626 libvmaf_filter_deps="libvmaf pthreads"
3627 zmq_filter_deps="libzmq"
3628 zoompan_filter_deps="swscale"
3629 zscale_filter_deps="libzimg const_nan"
3630 scale_vaapi_filter_deps="vaapi"
3631 scale_vulkan_filter_deps="vulkan libglslang"
3632 vpp_qsv_filter_deps="libmfx"
3633 vpp_qsv_filter_select="qsvvpp"
3634 xfade_opencl_filter_deps="opencl"
3635 yadif_cuda_filter_deps="ffnvcodec"
3636 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
3637
3638 # examples
3639 avio_list_dir_deps="avformat avutil"
3640 avio_reading_deps="avformat avcodec avutil"
3641 decode_audio_example_deps="avcodec avutil"
3642 decode_video_example_deps="avcodec avutil"
3643 demuxing_decoding_example_deps="avcodec avformat avutil"
3644 encode_audio_example_deps="avcodec avutil"
3645 encode_video_example_deps="avcodec avutil"
3646 extract_mvs_example_deps="avcodec avformat avutil"
3647 filter_audio_example_deps="avfilter avutil"
3648 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3649 filtering_video_example_deps="avfilter avcodec avformat avutil"
3650 http_multiclient_example_deps="avformat avutil fork"
3651 hw_decode_example_deps="avcodec avformat avutil"
3652 metadata_example_deps="avformat avutil"
3653 muxing_example_deps="avcodec avformat avutil swscale"
3654 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3655 remuxing_example_deps="avcodec avformat avutil"
3656 resampling_audio_example_deps="avutil swresample"
3657 scaling_video_example_deps="avutil swscale"
3658 transcode_aac_example_deps="avcodec avformat swresample"
3659 transcoding_example_deps="avfilter avcodec avformat avutil"
3660 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3661 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3662
3663 # EXTRALIBS_LIST
3664 cpu_init_extralibs="pthreads_extralibs"
3665 cws2fws_extralibs="zlib_extralibs"
3666
3667 # libraries, in any order
3668 avcodec_deps="avutil"
3669 avcodec_suggest="libm"
3670 avcodec_select="null_bsf"
3671 avdevice_deps="avformat avcodec avutil"
3672 avdevice_suggest="libm"
3673 avfilter_deps="avutil"
3674 avfilter_suggest="libm"
3675 avformat_deps="avcodec avutil"
3676 avformat_suggest="libm network zlib"
3677 avresample_deps="avutil"
3678 avresample_suggest="libm"
3679 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi vulkan videotoolbox corefoundation corevideo coremedia bcrypt"
3680 postproc_deps="avutil gpl"
3681 postproc_suggest="libm"
3682 swresample_deps="avutil"
3683 swresample_suggest="libm libsoxr"
3684 swscale_deps="avutil"
3685 swscale_suggest="libm"
3686
3687 avcodec_extralibs="pthreads_extralibs iconv_extralibs dxva2_extralibs"
3688 avfilter_extralibs="pthreads_extralibs"
3689 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3690
3691 # programs
3692 ffmpeg_deps="avcodec avfilter avformat"
3693 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3694                hflip_filter null_filter
3695                transpose_filter trim_filter vflip_filter"
3696 ffmpeg_suggest="ole32 psapi shell32"
3697 ffplay_deps="avcodec avformat swscale swresample sdl2"
3698 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3699 ffplay_suggest="shell32"
3700 ffprobe_deps="avcodec avformat"
3701 ffprobe_suggest="shell32"
3702
3703 # documentation
3704 podpages_deps="perl"
3705 manpages_deps="perl pod2man"
3706 htmlpages_deps="perl"
3707 htmlpages_deps_any="makeinfo_html texi2html"
3708 txtpages_deps="perl makeinfo"
3709 doc_deps_any="manpages htmlpages podpages txtpages"
3710
3711 # default parameters
3712
3713 logfile="ffbuild/config.log"
3714
3715 # installation paths
3716 prefix_default="/usr/local"
3717 bindir_default='${prefix}/bin'
3718 datadir_default='${prefix}/share/ffmpeg'
3719 docdir_default='${prefix}/share/doc/ffmpeg'
3720 incdir_default='${prefix}/include'
3721 libdir_default='${prefix}/lib'
3722 mandir_default='${prefix}/share/man'
3723
3724 # toolchain
3725 ar_default="ar"
3726 cc_default="gcc"
3727 cxx_default="g++"
3728 host_cc_default="gcc"
3729 doxygen_default="doxygen"
3730 install="install"
3731 ln_s_default="ln -s -f"
3732 nm_default="nm -g"
3733 pkg_config_default=pkg-config
3734 ranlib_default="ranlib"
3735 strip_default="strip"
3736 version_script='--version-script'
3737 objformat="elf32"
3738 x86asmexe_default="nasm"
3739 windres_default="windres"
3740 striptype="direct"
3741
3742 # OS
3743 target_os_default=$(tolower $(uname -s))
3744 host_os=$target_os_default
3745
3746 # machine
3747 if test "$target_os_default" = aix; then
3748     arch_default=$(uname -p)
3749     strip_default="strip -X32_64"
3750     nm_default="nm -g -X32_64"
3751 else
3752     arch_default=$(uname -m)
3753 fi
3754 cpu="generic"
3755 intrinsics="none"
3756
3757 # configurable options
3758 enable $PROGRAM_LIST
3759 enable $DOCUMENT_LIST
3760 enable $EXAMPLE_LIST
3761 enable $(filter_out avresample $LIBRARY_LIST)
3762 enable stripping
3763
3764 enable asm
3765 enable debug
3766 enable doc
3767 enable faan faandct faanidct
3768 enable large_tests
3769 enable optimizations
3770 enable runtime_cpudetect
3771 enable safe_bitstream_reader
3772 enable static
3773 enable swscale_alpha
3774 enable valgrind_backtrace
3775
3776 sws_max_filter_size_default=256
3777 set_default sws_max_filter_size
3778
3779 # internal components are enabled by default
3780 enable $EXTRALIBS_LIST
3781
3782 # Avoid external, non-system, libraries getting enabled by dependency resolution
3783 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3784
3785 # build settings
3786 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3787 LIBPREF="lib"
3788 LIBSUF=".a"
3789 FULLNAME='$(NAME)$(BUILDSUF)'
3790 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3791 SLIBPREF="lib"
3792 SLIBSUF=".so"
3793 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3794 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3795 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3796 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3797 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3798 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3799 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3800
3801 asflags_filter=echo
3802 cflags_filter=echo
3803 ldflags_filter=echo
3804
3805 AS_C='-c'
3806 AS_O='-o $@'
3807 CC_C='-c'
3808 CC_E='-E -o $@'
3809 CC_O='-o $@'
3810 CXX_C='-c'
3811 CXX_O='-o $@'
3812 OBJCC_C='-c'
3813 OBJCC_E='-E -o $@'
3814 OBJCC_O='-o $@'
3815 X86ASM_O='-o $@'
3816 LD_O='-o $@'
3817 LD_LIB='-l%'
3818 LD_PATH='-L'
3819 HOSTCC_C='-c'
3820 HOSTCC_E='-E -o $@'
3821 HOSTCC_O='-o $@'
3822 HOSTLD_O='-o $@'
3823 NVCC_C='-c'
3824 NVCC_O='-o $@'
3825
3826 host_extralibs='-lm'
3827 host_cflags_filter=echo
3828 host_ldflags_filter=echo
3829
3830 target_path='$(CURDIR)'
3831
3832 # since the object filename is not given with the -MM flag, the compiler
3833 # is only able to print the basename, and we must add the path ourselves
3834 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3835 DEPFLAGS='-MM'
3836
3837 mkdir -p ffbuild
3838
3839 # find source path
3840 if test -f configure; then
3841     source_path=.
3842 elif test -f src/configure; then
3843     source_path=src
3844 else
3845     source_path=$(cd $(dirname "$0"); pwd)
3846     case "$source_path" in
3847         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3848     esac
3849     test -e "$source_path/config.h" &&
3850         die "Out of tree builds are impossible with config.h in source dir."
3851 fi
3852
3853 for v in "$@"; do
3854     r=${v#*=}
3855     l=${v%"$r"}
3856     r=$(sh_quote "$r")
3857     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3858 done
3859
3860 find_things_extern(){
3861     thing=$1
3862     pattern=$2
3863     file=$source_path/$3
3864     out=${4:-$thing}
3865     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3866 }
3867
3868 find_filters_extern(){
3869     file=$source_path/$1
3870     sed -n 's/^extern AVFilter ff_[avfsinkrc]\{2,5\}_\([[:alnum:]_]\{1,\}\);/\1_filter/p' $file
3871 }
3872
3873 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3874 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3875 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3876 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3877 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3878 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3879 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3880 CODEC_LIST="
3881     $ENCODER_LIST
3882     $DECODER_LIST
3883 "
3884 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3885 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3886 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3887 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3888
3889 AVCODEC_COMPONENTS_LIST="
3890     $BSF_LIST
3891     $DECODER_LIST
3892     $ENCODER_LIST
3893     $HWACCEL_LIST
3894     $PARSER_LIST
3895 "
3896
3897 AVDEVICE_COMPONENTS_LIST="
3898     $INDEV_LIST
3899     $OUTDEV_LIST
3900 "
3901
3902 AVFILTER_COMPONENTS_LIST="
3903     $FILTER_LIST
3904 "
3905
3906 AVFORMAT_COMPONENTS_LIST="
3907     $DEMUXER_LIST
3908     $MUXER_LIST
3909     $PROTOCOL_LIST
3910 "
3911
3912 ALL_COMPONENTS="
3913     $AVCODEC_COMPONENTS_LIST
3914     $AVDEVICE_COMPONENTS_LIST
3915     $AVFILTER_COMPONENTS_LIST
3916     $AVFORMAT_COMPONENTS_LIST
3917 "
3918
3919 for n in $COMPONENT_LIST; do
3920     v=$(toupper ${n%s})_LIST
3921     eval enable \$$v
3922     eval ${n}_if_any="\$$v"
3923 done
3924
3925 enable $ARCH_EXT_LIST
3926
3927 die_unknown(){
3928     echo "Unknown option \"$1\"."
3929     echo "See $0 --help for available options."
3930     exit 1
3931 }
3932
3933 print_in_columns() {
3934     tr ' ' '\n' | sort | tr '\r\n' '  ' | awk -v col_width=24 -v width="$ncols" '
3935     {
3936         num_cols = width > col_width ? int(width / col_width) : 1;
3937         num_rows = int((NF + num_cols-1) / num_cols);
3938         y = x = 1;
3939         for (y = 1; y <= num_rows; y++) {
3940             i = y;
3941             for (x = 1; x <= num_cols; x++) {
3942                 if (i <= NF) {
3943                   line = sprintf("%s%-" col_width "s", line, $i);
3944                 }
3945                 i = i + num_rows;
3946             }
3947             print line; line = "";
3948         }
3949     }' | sed 's/ *$//'
3950 }
3951
3952 show_list() {
3953     suffix=_$1
3954     shift
3955     echo $* | sed s/$suffix//g | print_in_columns
3956     exit 0
3957 }
3958
3959 rand_list(){
3960     IFS=', '
3961     set -- $*
3962     unset IFS
3963     for thing; do
3964         comp=${thing%:*}
3965         prob=${thing#$comp}
3966         prob=${prob#:}
3967         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3968         echo "prob ${prob:-0.5}"
3969         printf '%s\n' $comp
3970     done
3971 }
3972
3973 do_random(){
3974     action=$1
3975     shift
3976     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3977     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3978 }
3979
3980 for opt do
3981     optval="${opt#*=}"
3982     case "$opt" in
3983         --extra-ldflags=*)
3984             add_ldflags $optval
3985         ;;
3986         --extra-ldexeflags=*)
3987             add_ldexeflags $optval
3988         ;;
3989         --extra-ldsoflags=*)
3990             add_ldsoflags $optval
3991         ;;
3992         --extra-ldlibflags=*)
3993             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3994                  "removed in the future. Use --extra-ldsoflags instead."
3995             add_ldsoflags $optval
3996         ;;
3997         --extra-libs=*)
3998             add_extralibs $optval
3999         ;;
4000         --disable-devices)
4001             disable $INDEV_LIST $OUTDEV_LIST
4002         ;;
4003         --enable-debug=*)
4004             debuglevel="$optval"
4005         ;;
4006         --disable-programs)
4007             disable $PROGRAM_LIST
4008         ;;
4009         --disable-everything)
4010             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
4011         ;;
4012         --disable-all)
4013             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
4014             disable $LIBRARY_LIST $PROGRAM_LIST doc
4015             enable avutil
4016         ;;
4017         --enable-random|--disable-random)
4018             action=${opt%%-random}
4019             do_random ${action#--} $COMPONENT_LIST
4020         ;;
4021         --enable-random=*|--disable-random=*)
4022             action=${opt%%-random=*}
4023             do_random ${action#--} $optval
4024         ;;
4025         --enable-sdl)
4026             enable sdl2
4027         ;;
4028         --enable-*=*|--disable-*=*)
4029             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
4030             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
4031             eval list=\$$(toupper $thing)_LIST
4032             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
4033             list=$(filter "$name" $list)
4034             [ "$list" = "" ] && warn "Option $opt did not match anything"
4035             test $action = enable && warn_if_gets_disabled $list
4036             $action $list
4037         ;;
4038         --enable-yasm|--disable-yasm)
4039             warn "The ${opt} option is only provided for compatibility and will be\n"\
4040                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
4041             test $opt = --enable-yasm && x86asm=yes || x86asm=no
4042         ;;
4043         --yasmexe=*)
4044             warn "The --yasmexe option is only provided for compatibility and will be\n"\
4045                  "removed in the future. Use --x86asmexe instead."
4046             x86asmexe="$optval"
4047         ;;
4048         --enable-?*|--disable-?*)
4049             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
4050             if is_in $option $COMPONENT_LIST; then
4051                 test $action = disable && action=unset
4052                 eval $action \$$(toupper ${option%s})_LIST
4053             elif is_in $option $CMDLINE_SELECT; then
4054                 $action $option
4055             else
4056                 die_unknown $opt
4057             fi
4058         ;;
4059         --list-*)
4060             NAME="${opt#--list-}"
4061             is_in $NAME $COMPONENT_LIST || die_unknown $opt
4062             NAME=${NAME%s}
4063             eval show_list $NAME \$$(toupper $NAME)_LIST
4064         ;;
4065         --help|-h) show_help
4066         ;;
4067         --quiet|-q) quiet=yes
4068         ;;
4069         --fatal-warnings) enable fatal_warnings
4070         ;;
4071         --libfuzzer=*)
4072             libfuzzer_path="$optval"
4073         ;;
4074         *)
4075             optname="${opt%%=*}"
4076             optname="${optname#--}"
4077             optname=$(echo "$optname" | sed 's/-/_/g')
4078             if is_in $optname $CMDLINE_SET; then
4079                 eval $optname='$optval'
4080             elif is_in $optname $CMDLINE_APPEND; then
4081                 append $optname "$optval"
4082             else
4083                 die_unknown $opt
4084             fi
4085         ;;
4086     esac
4087 done
4088
4089 for e in $env; do
4090     eval "export $e"
4091 done
4092
4093 if disabled autodetect; then
4094
4095     # Unless iconv is explicitely disabled by the user, we still want to probe
4096     # for the iconv from the libc.
4097     disabled iconv || enable libc_iconv
4098
4099     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4100     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4101 fi
4102 # Mark specifically enabled, but normally autodetected libraries as requested.
4103 for lib in $AUTODETECT_LIBS; do
4104     enabled $lib && request $lib
4105 done
4106 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
4107 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
4108 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
4109
4110 disabled logging && logfile=/dev/null
4111
4112 # command line configuration sanity checks
4113
4114 # we need to build at least one lib type
4115 if ! enabled_any static shared; then
4116     cat <<EOF
4117 At least one library type must be built.
4118 Specify --enable-static to build the static libraries or --enable-shared to
4119 build the shared libraries as well. To only build the shared libraries specify
4120 --disable-static in addition to --enable-shared.
4121 EOF
4122     exit 1
4123 fi
4124
4125 die_license_disabled() {
4126     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
4127 }
4128
4129 die_license_disabled_gpl() {
4130     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
4131 }
4132
4133 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4134 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
4135
4136 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
4137 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
4138
4139 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4140
4141 if enabled nonfree; then
4142     license="nonfree and unredistributable"
4143 elif enabled gplv3; then
4144     license="GPL version 3 or later"
4145 elif enabled lgplv3; then
4146     license="LGPL version 3 or later"
4147 elif enabled gpl; then
4148     license="GPL version 2 or later"
4149 else
4150     license="LGPL version 2.1 or later"
4151 fi
4152
4153 enabled_all gnutls openssl &&
4154     die "GnuTLS and OpenSSL must not be enabled at the same time."
4155
4156 enabled_all gnutls mbedtls &&
4157     die "GnuTLS and mbedTLS must not be enabled at the same time."
4158
4159 enabled_all openssl mbedtls &&
4160     die "OpenSSL and mbedTLS must not be enabled at the same time."
4161
4162 # Disable all the library-specific components if the library itself
4163 # is disabled, see AVCODEC_LIST and following _LIST variables.
4164
4165 disable_components(){
4166     disabled ${1} && disable $(
4167         eval components="\$$(toupper ${1})_COMPONENTS"
4168         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4169     )
4170 }
4171
4172 map 'disable_components $v' $LIBRARY_LIST
4173
4174 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4175 set >> $logfile
4176
4177 test -n "$valgrind" && toolchain="valgrind-memcheck"
4178
4179 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4180     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4181     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4182 }
4183
4184 case "$toolchain" in
4185     *-asan)
4186         cc_default="${toolchain%-asan}"
4187         add_cflags  -fsanitize=address
4188         add_ldflags -fsanitize=address
4189     ;;
4190     *-msan)
4191         cc_default="${toolchain%-msan}"
4192         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4193         add_ldflags -fsanitize=memory
4194     ;;
4195     *-tsan)
4196         cc_default="${toolchain%-tsan}"
4197         add_cflags  -fsanitize=thread
4198         add_ldflags -fsanitize=thread
4199         case "$toolchain" in
4200             gcc-tsan)
4201                 add_cflags  -fPIC
4202                 add_ldflags -fPIC
4203                 ;;
4204         esac
4205     ;;
4206     *-usan)
4207         cc_default="${toolchain%-usan}"
4208         add_cflags  -fsanitize=undefined
4209         add_ldflags -fsanitize=undefined
4210     ;;
4211     valgrind-*)
4212         target_exec_default="valgrind"
4213         case "$toolchain" in
4214             valgrind-massif)
4215                 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"
4216                 ;;
4217             valgrind-memcheck)
4218                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4219                 ;;
4220         esac
4221     ;;
4222     msvc)
4223         # Check whether the current MSVC version needs the C99 converter.
4224         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4225         # support enough of C99 to build ffmpeg. Default to the new
4226         # behaviour if the regexp was unable to match anything, since this
4227         # successfully parses the version number of existing supported
4228         # versions that require the converter (MSVC 2010 and 2012).
4229         cl_major_ver=$(cl.exe 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4230         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4231             cc_default="cl.exe"
4232             cxx_default="cl.exe"
4233         else
4234             die "Unsupported MSVC version (2013 or newer required)"
4235         fi
4236         ld_default="$source_path/compat/windows/mslink"
4237         nm_default="dumpbin.exe -symbols"
4238         ar_default="lib.exe"
4239         case "$arch" in
4240         aarch64|arm64)
4241             as_default="armasm64.exe"
4242             ;;
4243         arm*)
4244             as_default="armasm.exe"
4245             ;;
4246         esac
4247         target_os_default="win32"
4248         # Use a relative path for TMPDIR. This makes sure all the
4249         # ffconf temp files are written with a relative path, avoiding
4250         # issues with msys/win32 path conversion for MSVC parameters
4251         # such as -Fo<file> or -out:<file>.
4252         TMPDIR=.
4253     ;;
4254     icl)
4255         cc_default="icl"
4256         ld_default="xilink"
4257         nm_default="dumpbin -symbols"
4258         ar_default="xilib"
4259         target_os_default="win32"
4260         TMPDIR=.
4261     ;;
4262     gcov)
4263         add_cflags  -fprofile-arcs -ftest-coverage
4264         add_ldflags -fprofile-arcs -ftest-coverage
4265     ;;
4266     llvm-cov)
4267         add_cflags -fprofile-arcs -ftest-coverage
4268         add_ldflags --coverage
4269     ;;
4270     hardened)
4271         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4272         add_cflags   -fno-strict-overflow -fstack-protector-all
4273         add_ldflags  -Wl,-z,relro -Wl,-z,now
4274         add_cflags   -fPIE
4275         add_ldexeflags -fPIE -pie
4276     ;;
4277     ?*)
4278         die "Unknown toolchain $toolchain"
4279     ;;
4280 esac
4281
4282 if test -n "$cross_prefix"; then
4283     test -n "$arch" && test -n "$target_os" ||
4284         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4285     enable cross_compile
4286 fi
4287
4288 set_default target_os
4289 if test "$target_os" = android; then
4290     cc_default="clang"
4291 fi
4292
4293 ar_default="${cross_prefix}${ar_default}"
4294 cc_default="${cross_prefix}${cc_default}"
4295 cxx_default="${cross_prefix}${cxx_default}"
4296 nm_default="${cross_prefix}${nm_default}"
4297 pkg_config_default="${cross_prefix}${pkg_config_default}"
4298 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4299     ranlib_default="${cross_prefix}${ranlib_default} -D"
4300 else
4301     ranlib_default="${cross_prefix}${ranlib_default}"
4302 fi
4303 strip_default="${cross_prefix}${strip_default}"
4304 windres_default="${cross_prefix}${windres_default}"
4305
4306 sysinclude_default="${sysroot}/usr/include"
4307
4308 if enabled cuda_sdk; then
4309     warn "Option --enable-cuda-sdk is deprecated. Use --enable-cuda-nvcc instead."
4310     enable cuda_nvcc
4311 fi
4312
4313 if enabled cuda_nvcc; then
4314     nvcc_default="nvcc"
4315     nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
4316 else
4317     nvcc_default="clang"
4318     nvccflags_default="--cuda-gpu-arch=sm_30 -O2"
4319     NVCC_C=""
4320 fi
4321
4322 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4323     target_exec x86asmexe nvcc
4324 enabled cross_compile || host_cc_default=$cc
4325 set_default host_cc
4326
4327 pkg_config_fail_message=""
4328 if ! $pkg_config --version >/dev/null 2>&1; then
4329     warn "$pkg_config not found, library detection may fail."
4330     pkg_config=false
4331 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4332     pkg_config_fail_message="
4333 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4334 fi
4335
4336 if test $doxygen != $doxygen_default && \
4337   ! $doxygen --version >/dev/null 2>&1; then
4338     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4339 fi
4340
4341 exesuf() {
4342     case $1 in
4343         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4344     esac
4345 }
4346
4347 EXESUF=$(exesuf $target_os)
4348 HOSTEXESUF=$(exesuf $host_os)
4349
4350 # set temporary file name
4351 : ${TMPDIR:=$TEMPDIR}
4352 : ${TMPDIR:=$TMP}
4353 : ${TMPDIR:=/tmp}
4354
4355 if [ -n "$tempprefix" ] ; then
4356     mktemp(){
4357         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4358         echo "$tmpname"
4359         mkdir "$tmpname"
4360     }
4361 elif ! test_cmd mktemp -u XXXXXX; then
4362     # simple replacement for missing mktemp
4363     # NOT SAFE FOR GENERAL USE
4364     mktemp(){
4365         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4366         echo "$tmpname"
4367         mkdir "$tmpname"
4368     }
4369 fi
4370
4371 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4372     die "Unable to create temporary directory in $TMPDIR."
4373
4374 tmpfile(){
4375     tmp="${FFTMPDIR}/test"$2
4376     (set -C; exec > $tmp) 2> /dev/null ||
4377         die "Unable to create temporary file in $FFTMPDIR."
4378     eval $1=$tmp
4379 }
4380
4381 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4382 trap 'exit 2' INT
4383
4384 tmpfile TMPASM .asm
4385 tmpfile TMPC   .c
4386 tmpfile TMPCPP .cpp
4387 tmpfile TMPE   $EXESUF
4388 tmpfile TMPH   .h
4389 tmpfile TMPM   .m
4390 tmpfile TMPCU  .cu
4391 tmpfile TMPO   .o
4392 tmpfile TMPS   .S
4393 tmpfile TMPSH  .sh
4394 tmpfile TMPV   .ver
4395
4396 unset -f mktemp
4397
4398 chmod +x $TMPE
4399
4400 # make sure we can execute files in $TMPDIR
4401 cat > $TMPSH 2>> $logfile <<EOF
4402 #! /bin/sh
4403 EOF
4404 chmod +x $TMPSH >> $logfile 2>&1
4405 if ! $TMPSH >> $logfile 2>&1; then
4406     cat <<EOF
4407 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4408 variable to another directory and make sure that it is not mounted noexec.
4409 EOF
4410     die "Sanity test failed."
4411 fi
4412
4413 armasm_flags(){
4414     for flag; do
4415         case $flag in
4416             # Filter out MSVC cl.exe options from cflags that shouldn't
4417             # be passed to gas-preprocessor
4418             -M[TD]*)                                            ;;
4419             *)                  echo $flag                      ;;
4420         esac
4421    done
4422 }
4423
4424 cparser_flags(){
4425     for flag; do
4426         case $flag in
4427             -Wno-switch)             echo -Wno-switch-enum ;;
4428             -Wno-format-zero-length) ;;
4429             -Wdisabled-optimization) ;;
4430             -Wno-pointer-sign)       echo -Wno-other ;;
4431             *)                       echo $flag ;;
4432         esac
4433     done
4434 }
4435
4436 msvc_common_flags(){
4437     for flag; do
4438         case $flag in
4439             # In addition to specifying certain flags under the compiler
4440             # specific filters, they must be specified here as well or else the
4441             # generic catch all at the bottom will print the original flag.
4442             -Wall)                ;;
4443             -Wextra)              ;;
4444             -std=c*)              ;;
4445             # Common flags
4446             -fomit-frame-pointer) ;;
4447             -g)                   echo -Z7 ;;
4448             -fno-math-errno)      ;;
4449             -fno-common)          ;;
4450             -fno-signed-zeros)    ;;
4451             -fPIC)                ;;
4452             -mthumb)              ;;
4453             -march=*)             ;;
4454             -lz)                  echo zlib.lib ;;
4455             -lx264)               echo libx264.lib ;;
4456             -lstdc++)             ;;
4457             -l*)                  echo ${flag#-l}.lib ;;
4458             -LARGEADDRESSAWARE)   echo $flag ;;
4459             -L*)                  echo -libpath:${flag#-L} ;;
4460             -Wl,*)                ;;
4461             *)                    echo $flag ;;
4462         esac
4463     done
4464 }
4465
4466 msvc_flags(){
4467     msvc_common_flags "$@"
4468     for flag; do
4469         case $flag in
4470             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4471                                        -wd4554 ;;
4472             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4473                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4474                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4475                                        -wd4307 \
4476                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4477         esac
4478     done
4479 }
4480
4481 icl_flags(){
4482     msvc_common_flags "$@"
4483     for flag; do
4484         case $flag in
4485             # Despite what Intel's documentation says -Wall, which is supported
4486             # on Windows, does enable remarks so disable them here.
4487             -Wall)                echo $flag -Qdiag-disable:remark ;;
4488             -std=c99)             echo -Qstd=c99 ;;
4489             -flto)                echo -ipo ;;
4490         esac
4491     done
4492 }
4493
4494 icc_flags(){
4495     for flag; do
4496         case $flag in
4497             -flto)                echo -ipo ;;
4498             *)                    echo $flag ;;
4499         esac
4500     done
4501 }
4502
4503 suncc_flags(){
4504     for flag; do
4505         case $flag in
4506             -march=*|-mcpu=*)
4507                 case "${flag#*=}" in
4508                     native)                   echo -xtarget=native       ;;
4509                     v9|niagara)               echo -xarch=sparc          ;;
4510                     ultrasparc)               echo -xarch=sparcvis       ;;
4511                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4512                     i586|pentium)             echo -xchip=pentium        ;;
4513                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4514                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4515                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4516                     pentium4*)          echo -xtarget=pentium4           ;;
4517                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4518                     *-sse3)             echo -xarch=sse3                 ;;
4519                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4520                     bonnell)                   echo -xarch=ssse3         ;;
4521                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4522                     westmere)                  echo -xtarget=westmere    ;;
4523                     silvermont)                echo -xarch=sse4_2        ;;
4524                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4525                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4526                                                echo -xarch=avx           ;;
4527                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4528                     btver1)                    echo -xarch=amdsse4a      ;;
4529                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4530                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4531                     k8|opteron|athlon64|athlon-fx)
4532                                                echo -xarch=sse2a         ;;
4533                     athlon*)                   echo -xarch=pentium_proa  ;;
4534                 esac
4535                 ;;
4536             -std=c99)             echo -xc99              ;;
4537             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4538             -fPIC)                echo -KPIC -xcode=pic32 ;;
4539             -W*,*)                echo $flag              ;;
4540             -f*-*|-W*|-mimpure-text)                      ;;
4541             -shared)              echo -G                 ;;
4542             *)                    echo $flag              ;;
4543         esac
4544     done
4545 }
4546
4547 probe_cc(){
4548     pfx=$1
4549     _cc=$2
4550     first=$3
4551
4552     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4553     unset _ld_o _ldflags _ld_lib _ld_path
4554     unset _depflags _DEPCMD _DEPFLAGS
4555     _flags_filter=echo
4556
4557     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4558         true # no-op to avoid reading stdin in following checks
4559     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4560         _type=llvm_gcc
4561         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4562         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4563         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4564         _cflags_speed='-O3'
4565         _cflags_size='-Os'
4566     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4567         _type=gcc
4568         gcc_version=$($_cc --version | head -n1)
4569         gcc_basever=$($_cc -dumpversion)
4570         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4571         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4572         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4573         case $gcc_basever in
4574             2) ;;
4575             2.*) ;;
4576             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4577         esac
4578         if [ "$first" = true ]; then
4579             case $gcc_basever in
4580                 4.2*)
4581                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4582             esac
4583         fi
4584         _cflags_speed='-O3'
4585         _cflags_size='-Os'
4586     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4587         _type=icc
4588         _ident=$($_cc --version | head -n1)
4589         _depflags='-MMD'
4590         _cflags_speed='-O3'
4591         _cflags_size='-Os'
4592         _cflags_noopt='-O1'
4593         _flags_filter=icc_flags
4594     elif $_cc -v 2>&1 | grep -q xlc; then
4595         _type=xlc
4596         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4597         _cflags_speed='-O5'
4598         _cflags_size='-O5 -qcompact'
4599     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4600         test -d "$sysroot" || die "No valid sysroot specified."
4601         _type=armcc
4602         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4603         armcc_conf="$PWD/armcc.conf"
4604         $_cc --arm_linux_configure                 \
4605              --arm_linux_config_file="$armcc_conf" \
4606              --configure_sysroot="$sysroot"        \
4607              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4608              die "Error creating armcc configuration file."
4609         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4610         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4611         as_default="${cross_prefix}gcc"
4612         _depflags='-MMD'
4613         _cflags_speed='-O3'
4614         _cflags_size='-Os'
4615     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4616         _type=clang
4617         _ident=$($_cc --version 2>/dev/null | head -n1)
4618         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4619         _cflags_speed='-O3'
4620         _cflags_size='-Oz'
4621     elif $_cc -V 2>&1 | grep -q Sun; then
4622         _type=suncc
4623         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4624         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4625         _DEPFLAGS='-xM1 -xc99'
4626         _ldflags='-std=c99'
4627         _cflags_speed='-O5'
4628         _cflags_size='-O5 -xspace'
4629         _flags_filter=suncc_flags
4630     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4631         _type=pathscale
4632         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4633         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4634         _cflags_speed='-O2'
4635         _cflags_size='-Os'
4636         _flags_filter='filter_out -Wdisabled-optimization'
4637     elif $_cc -v 2>&1 | grep -q Open64; then
4638         _type=open64
4639         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4640         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4641         _cflags_speed='-O2'
4642         _cflags_size='-Os'
4643         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4644     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4645         _type=armasm
4646         _ident=$($_cc | head -n1)
4647         # 4509: "This form of conditional instruction is deprecated"
4648         _flags="-nologo -ignore 4509"
4649         _flags_filter=armasm_flags
4650     elif $_cc 2>&1 | grep -q Intel; then
4651         _type=icl
4652         _ident=$($_cc 2>&1 | head -n1)
4653         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4654         # Not only is O3 broken on 13.x+ but it is slower on all previous
4655         # versions (tested) as well.
4656         _cflags_speed="-O2"
4657         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4658         if $_cc 2>&1 | grep -q Linker; then
4659             _ld_o='-out:$@'
4660         else
4661             _ld_o='-Fe$@'
4662         fi
4663         _cc_o='-Fo$@'
4664         _cc_e='-P'
4665         _flags_filter=icl_flags
4666         _ld_lib='lib%.a'
4667         _ld_path='-libpath:'
4668         # -Qdiag-error to make icl error when seeing certain unknown arguments
4669         _flags='-nologo -Qdiag-error:4044,10157'
4670         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4671         # with MSVC which enables it by default.
4672         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4673         disable stripping
4674     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4675         # lld can emulate multiple different linkers; in ms link.exe mode,
4676         # the -? parameter gives the help output which contains an identifyable
4677         # string, while it gives an error in other modes.
4678         _type=lld-link
4679         # The link.exe mode doesn't have a switch for getting the version,
4680         # but we can force it back to gnu mode and get the version from there.
4681         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4682         _ld_o='-out:$@'
4683         _flags_filter=msvc_flags
4684         _ld_lib='lib%.a'
4685         _ld_path='-libpath:'
4686     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4687         _type=msvc
4688         if $_cc -nologo- 2>&1 | grep -q Microsoft; then
4689             _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4690         else
4691             _ident=$($_cc --version 2>/dev/null | head -n1 | tr -d '\r')
4692         fi
4693         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4694         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4695         _cflags_speed="-O2"
4696         _cflags_size="-O1"
4697         _cflags_noopt="-O1"
4698         if $_cc -nologo- 2>&1 | grep -q Linker; then
4699             _ld_o='-out:$@'
4700         else
4701             _ld_o='-Fe$@'
4702         fi
4703         _cc_o='-Fo$@'
4704         _cc_e='-P -Fi$@'
4705         _flags_filter=msvc_flags
4706         _ld_lib='lib%.a'
4707         _ld_path='-libpath:'
4708         _flags='-nologo'
4709         disable stripping
4710     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4711         _type=cparser
4712         _ident=$($_cc --version | head -n1)
4713         _depflags='-MMD'
4714         _cflags_speed='-O4'
4715         _cflags_size='-O2'
4716         _flags_filter=cparser_flags
4717     fi
4718
4719     eval ${pfx}_type=\$_type
4720     eval ${pfx}_ident=\$_ident
4721 }
4722
4723 set_ccvars(){
4724     eval ${1}_C=\${_cc_c-\${${1}_C}}
4725     eval ${1}_E=\${_cc_e-\${${1}_E}}
4726     eval ${1}_O=\${_cc_o-\${${1}_O}}
4727
4728     if [ -n "$_depflags" ]; then
4729         eval ${1}_DEPFLAGS=\$_depflags
4730     else
4731         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4732         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4733         eval DEP${1}FLAGS=\$_flags
4734     fi
4735 }
4736
4737 probe_cc cc "$cc" "true"
4738 cflags_filter=$_flags_filter
4739 cflags_speed=$_cflags_speed
4740 cflags_size=$_cflags_size
4741 cflags_noopt=$_cflags_noopt
4742 add_cflags $_flags $_cflags
4743 cc_ldflags=$_ldflags
4744 set_ccvars CC
4745 set_ccvars CXX
4746
4747 probe_cc hostcc "$host_cc"
4748 host_cflags_filter=$_flags_filter
4749 host_cflags_speed=$_cflags_speed
4750 add_host_cflags  $_flags $_cflags
4751 set_ccvars HOSTCC
4752
4753 test -n "$cc_type" && enable $cc_type ||
4754     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4755
4756 : ${as_default:=$cc}
4757 : ${objcc_default:=$cc}
4758 : ${dep_cc_default:=$cc}
4759 : ${ld_default:=$cc}
4760 : ${host_ld_default:=$host_cc}
4761 set_default ar as objcc dep_cc ld ln_s host_ld windres
4762
4763 probe_cc as "$as"
4764 asflags_filter=$_flags_filter
4765 add_asflags $_flags $_cflags
4766 set_ccvars AS
4767
4768 probe_cc objcc "$objcc"
4769 objcflags_filter=$_flags_filter
4770 add_objcflags $_flags $_cflags
4771 set_ccvars OBJC
4772
4773 probe_cc ld "$ld"
4774 ldflags_filter=$_flags_filter
4775 add_ldflags $_flags $_ldflags
4776 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4777 LD_O=${_ld_o-$LD_O}
4778 LD_LIB=${_ld_lib-$LD_LIB}
4779 LD_PATH=${_ld_path-$LD_PATH}
4780
4781 probe_cc hostld "$host_ld"
4782 host_ldflags_filter=$_flags_filter
4783 add_host_ldflags $_flags $_ldflags
4784 HOSTLD_O=${_ld_o-$HOSTLD_O}
4785
4786 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4787     probe_cc depcc "$dep_cc"
4788     CCDEP=${_DEPCMD:-$DEPCMD}
4789     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4790     DEPCCFLAGS=$_flags
4791 fi
4792
4793 if $ar 2>&1 | grep -q Microsoft; then
4794     arflags="-nologo"
4795     ar_o='-out:$@'
4796 elif $ar 2>&1 | grep -q "\[D\] "; then
4797     arflags="rcD"
4798     ar_o='$@'
4799 else
4800     arflags="rc"
4801     ar_o='$@'
4802 fi
4803
4804 add_cflags $extra_cflags
4805 add_cxxflags $extra_cxxflags
4806 add_objcflags $extra_objcflags
4807 add_asflags $extra_cflags
4808
4809 if test -n "$sysroot"; then
4810     case "$cc_type" in
4811         gcc|llvm_gcc|clang)
4812             add_cppflags --sysroot="$sysroot"
4813             add_ldflags --sysroot="$sysroot"
4814         ;;
4815     esac
4816 fi
4817
4818 if test "$cpu" = host; then
4819     enabled cross_compile &&
4820         warn "--cpu=host makes no sense when cross-compiling."
4821
4822     case "$cc_type" in
4823         gcc|llvm_gcc)
4824             check_native(){
4825                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4826                 sed -n "/cc1.*$1=/{
4827                             s/.*$1=\\([^ ]*\\).*/\\1/
4828                             p
4829                             q
4830                         }" $TMPE
4831             }
4832             cpu=$(check_native -march || check_native -mcpu)
4833         ;;
4834         clang)
4835             check_native(){
4836                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4837                 sed -n "/cc1.*-target-cpu /{
4838                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4839                             p
4840                             q
4841                         }" $TMPE
4842             }
4843             cpu=$(check_native -march)
4844         ;;
4845     esac
4846
4847     test "${cpu:-host}" = host &&
4848         die "--cpu=host not supported with compiler $cc"
4849 fi
4850
4851 # Deal with common $arch aliases
4852 case "$arch" in
4853     aarch64|arm64)
4854         arch="aarch64"
4855     ;;
4856     arm*|iPad*|iPhone*)
4857         arch="arm"
4858     ;;
4859     mips*|IP*)
4860         case "$arch" in
4861         *el)
4862             add_cppflags -EL
4863             add_ldflags -EL
4864         ;;
4865         *eb)
4866             add_cppflags -EB
4867             add_ldflags -EB
4868         ;;
4869         esac
4870         arch="mips"
4871     ;;
4872     parisc*|hppa*)
4873         arch="parisc"
4874     ;;
4875     "Power Macintosh"|ppc*|powerpc*)
4876         arch="ppc"
4877     ;;
4878     s390|s390x)
4879         arch="s390"
4880     ;;
4881     sh4|sh)
4882         arch="sh4"
4883     ;;
4884     sun4*|sparc*)
4885         arch="sparc"
4886     ;;
4887     tilegx|tile-gx)
4888         arch="tilegx"
4889     ;;
4890     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4891         arch="x86"
4892     ;;
4893 esac
4894
4895 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4896 enable $arch
4897
4898 # Add processor-specific flags
4899 if enabled aarch64; then
4900
4901     case $cpu in
4902         armv*)
4903             cpuflags="-march=$cpu"
4904         ;;
4905         *)
4906             cpuflags="-mcpu=$cpu"
4907         ;;
4908     esac
4909
4910 elif enabled alpha; then
4911
4912     cpuflags="-mcpu=$cpu"
4913
4914 elif enabled arm; then
4915
4916     check_arm_arch() {
4917         test_cpp_condition stddef.h \
4918             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4919             $cpuflags
4920     }
4921
4922     probe_arm_arch() {
4923         if   check_arm_arch 4;        then echo armv4
4924         elif check_arm_arch 4T;       then echo armv4t
4925         elif check_arm_arch 5;        then echo armv5
4926         elif check_arm_arch 5E;       then echo armv5e
4927         elif check_arm_arch 5T;       then echo armv5t
4928         elif check_arm_arch 5TE;      then echo armv5te
4929         elif check_arm_arch 5TEJ;     then echo armv5te
4930         elif check_arm_arch 6;        then echo armv6
4931         elif check_arm_arch 6J;       then echo armv6j
4932         elif check_arm_arch 6K;       then echo armv6k
4933         elif check_arm_arch 6Z;       then echo armv6z
4934         elif check_arm_arch 6KZ;      then echo armv6zk
4935         elif check_arm_arch 6ZK;      then echo armv6zk
4936         elif check_arm_arch 6T2;      then echo armv6t2
4937         elif check_arm_arch 7;        then echo armv7
4938         elif check_arm_arch 7A  7_A;  then echo armv7-a
4939         elif check_arm_arch 7S;       then echo armv7-a
4940         elif check_arm_arch 7R  7_R;  then echo armv7-r
4941         elif check_arm_arch 7M  7_M;  then echo armv7-m
4942         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4943         elif check_arm_arch 8A  8_A;  then echo armv8-a
4944         fi
4945     }
4946
4947     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4948
4949     case $cpu in
4950         armv*)
4951             cpuflags="-march=$cpu"
4952             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4953         ;;
4954         *)
4955             cpuflags="-mcpu=$cpu"
4956             case $cpu in
4957                 cortex-a*)                               subarch=armv7a  ;;
4958                 cortex-r*)                               subarch=armv7r  ;;
4959                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4960                 arm11*)                                  subarch=armv6   ;;
4961                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4962                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4963                 *)                             subarch=$(probe_arm_arch) ;;
4964             esac
4965         ;;
4966     esac
4967
4968     case "$subarch" in
4969         armv5t*)    enable fast_clz                ;;
4970         armv[6-8]*)
4971             enable fast_clz
4972             disabled fast_unaligned || enable fast_unaligned
4973             ;;
4974     esac
4975
4976 elif enabled avr32; then
4977
4978     case $cpu in
4979         ap7[02]0[0-2])
4980             subarch="avr32_ap"
4981             cpuflags="-mpart=$cpu"