lavc: Add coded bitstream read/write support for AV1
[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-libass          enable libass subtitles rendering,
222                            needed for subtitles and ass filter [no]
223   --enable-libbluray       enable BluRay reading using libbluray [no]
224   --enable-libbs2b         enable bs2b DSP library [no]
225   --enable-libcaca         enable textual display using libcaca [no]
226   --enable-libcelt         enable CELT decoding via libcelt [no]
227   --enable-libcdio         enable audio CD grabbing with libcdio [no]
228   --enable-libcodec2       enable codec2 en/decoding using libcodec2 [no]
229   --enable-libdavs2        enable AVS2 decoding via libdavs2 [no]
230   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
231                            and libraw1394 [no]
232   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
233   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
234   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
235   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
236   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
237   --enable-libgme          enable Game Music Emu via libgme [no]
238   --enable-libgsm          enable GSM de/encoding via libgsm [no]
239   --enable-libiec61883     enable iec61883 via libiec61883 [no]
240   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
241   --enable-libjack         enable JACK audio sound server [no]
242   --enable-libklvanc       enable Kernel Labs VANC processing [no]
243   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
244   --enable-liblensfun      enable lensfun lens correction [no]
245   --enable-libmodplug      enable ModPlug via libmodplug [no]
246   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
247   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
248   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
249   --enable-libopencv       enable video filtering via libopencv [no]
250   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
251   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
252   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
253   --enable-libopus         enable Opus de/encoding via libopus [no]
254   --enable-libpulse        enable Pulseaudio input via libpulse [no]
255   --enable-librsvg         enable SVG rasterization via librsvg [no]
256   --enable-librubberband   enable rubberband needed for rubberband filter [no]
257   --enable-librtmp         enable RTMP[E] support via librtmp [no]
258   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
259   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
260   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
261   --enable-libsoxr         enable Include libsoxr resampling [no]
262   --enable-libspeex        enable Speex de/encoding via libspeex [no]
263   --enable-libsrt          enable Haivision SRT protocol via libsrt [no]
264   --enable-libssh          enable SFTP protocol via libssh [no]
265   --enable-libtensorflow   enable TensorFlow as a DNN module backend
266                            for DNN based filters like sr [no]
267   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
268   --enable-libtheora       enable Theora encoding via libtheora [no]
269   --enable-libtls          enable LibreSSL (via libtls), needed for https support
270                            if openssl, gnutls or mbedtls is not used [no]
271   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
272   --enable-libv4l2         enable libv4l2/v4l-utils [no]
273   --enable-libvidstab      enable video stabilization using vid.stab [no]
274   --enable-libvmaf         enable vmaf filter via libvmaf [no]
275   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
276   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
277                            native implementation exists [no]
278   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
279   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
280   --enable-libwebp         enable WebP encoding via libwebp [no]
281   --enable-libx264         enable H.264 encoding via x264 [no]
282   --enable-libx265         enable HEVC encoding via x265 [no]
283   --enable-libxavs         enable AVS encoding via xavs [no]
284   --enable-libxavs2        enable AVS2 encoding via xavs2 [no]
285   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
286   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
287   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
288   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
289   --enable-libxvid         enable Xvid encoding via xvidcore,
290                            native MPEG-4/Xvid encoder exists [no]
291   --enable-libxml2         enable XML parsing using the C library libxml2, needed
292                            for dash demuxing support [no]
293   --enable-libzimg         enable z.lib, needed for zscale filter [no]
294   --enable-libzmq          enable message passing via libzmq [no]
295   --enable-libzvbi         enable teletext support via libzvbi [no]
296   --enable-lv2             enable LV2 audio filtering [no]
297   --disable-lzma           disable lzma [autodetect]
298   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
299   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
300   --enable-mbedtls         enable mbedTLS, needed for https support
301                            if openssl, gnutls or libtls is not used [no]
302   --enable-mediacodec      enable Android MediaCodec support [no]
303   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
304   --enable-openal          enable OpenAL 1.1 capture support [no]
305   --enable-opencl          enable OpenCL processing [no]
306   --enable-opengl          enable OpenGL rendering [no]
307   --enable-openssl         enable openssl, needed for https support
308                            if gnutls, libtls or mbedtls is not used [no]
309   --disable-sndio          disable sndio support [autodetect]
310   --disable-schannel       disable SChannel SSP, needed for TLS support on
311                            Windows if openssl and gnutls are not used [autodetect]
312   --disable-sdl2           disable sdl2 [autodetect]
313   --disable-securetransport disable Secure Transport, needed for TLS support
314                            on OSX if openssl and gnutls are not used [autodetect]
315   --enable-vapoursynth     enable VapourSynth demuxer [no]
316   --disable-xlib           disable xlib [autodetect]
317   --disable-zlib           disable zlib [autodetect]
318
319   The following libraries provide various hardware acceleration features:
320   --disable-amf            disable AMF video encoding code [autodetect]
321   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
322   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
323   --disable-cuvid          disable Nvidia CUVID support [autodetect]
324   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
325   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
326   --disable-ffnvcodec      disable dynamically linked Nvidia code [autodetect]
327   --enable-libdrm          enable DRM code (Linux) [no]
328   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
329   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
330   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
331   --disable-nvdec          disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
332   --disable-nvenc          disable Nvidia video encoding code [autodetect]
333   --enable-omx             enable OpenMAX IL code [no]
334   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
335   --enable-rkmpp           enable Rockchip Media Process Platform code [no]
336   --disable-v4l2-m2m       disable V4L2 mem2mem code [autodetect]
337   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
338   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
339   --disable-videotoolbox   disable VideoToolbox code [autodetect]
340
341 Toolchain options:
342   --arch=ARCH              select architecture [$arch]
343   --cpu=CPU                select the minimum required CPU (affects
344                            instruction selection, may crash on older CPUs)
345   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
346   --progs-suffix=SUFFIX    program name suffix []
347   --enable-cross-compile   assume a cross-compiler is used
348   --sysroot=PATH           root of cross-build tree
349   --sysinclude=PATH        location of cross-build system headers
350   --target-os=OS           compiler targets OS [$target_os]
351   --target-exec=CMD        command to run executables on target
352   --target-path=DIR        path to view of build directory on target
353   --target-samples=DIR     path to samples directory on target
354   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
355   --toolchain=NAME         set tool defaults according to NAME
356                            (gcc-asan, clang-asan, gcc-msan, clang-msan,
357                            gcc-tsan, clang-tsan, gcc-usan, clang-usan,
358                            valgrind-massif, valgrind-memcheck,
359                            msvc, icl, gcov, llvm-cov, hardened)
360   --nm=NM                  use nm tool NM [$nm_default]
361   --ar=AR                  use archive tool AR [$ar_default]
362   --as=AS                  use assembler AS [$as_default]
363   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
364   --strip=STRIP            use strip tool STRIP [$strip_default]
365   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
366   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
367   --cc=CC                  use C compiler CC [$cc_default]
368   --cxx=CXX                use C compiler CXX [$cxx_default]
369   --objcc=OCC              use ObjC compiler OCC [$cc_default]
370   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
371   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
372   --ld=LD                  use linker LD [$ld_default]
373   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
374   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
375   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
376   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
377   --host-cc=HOSTCC         use host C compiler HOSTCC
378   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
379   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
380   --host-ld=HOSTLD         use host linker HOSTLD
381   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
382   --host-libs=HLIBS        use libs HLIBS when linking for host
383   --host-os=OS             compiler host OS [$target_os]
384   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
385   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
386   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
387   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
388   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
389   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
390   --extra-libs=ELIBS       add ELIBS [$ELIBS]
391   --extra-version=STRING   version string suffix []
392   --optflags=OPTFLAGS      override optimization-related compiler flags
393   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
394   --build-suffix=SUFFIX    library name suffix []
395   --enable-pic             build position-independent code
396   --enable-thumb           compile for Thumb instruction set
397   --enable-lto             use link-time optimization
398   --env="ENV=override"     override the environment variables
399
400 Advanced options (experts only):
401   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
402   --custom-allocator=NAME  use a supported custom allocator
403   --disable-symver         disable symbol versioning
404   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
405   --disable-safe-bitstream-reader
406                            disable buffer boundary checking in bitreaders
407                            (faster, but may crash)
408   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
409
410 Optimization options (experts only):
411   --disable-asm            disable all assembly optimizations
412   --disable-altivec        disable AltiVec optimizations
413   --disable-vsx            disable VSX optimizations
414   --disable-power8         disable POWER8 optimizations
415   --disable-amd3dnow       disable 3DNow! optimizations
416   --disable-amd3dnowext    disable 3DNow! extended optimizations
417   --disable-mmx            disable MMX optimizations
418   --disable-mmxext         disable MMXEXT optimizations
419   --disable-sse            disable SSE optimizations
420   --disable-sse2           disable SSE2 optimizations
421   --disable-sse3           disable SSE3 optimizations
422   --disable-ssse3          disable SSSE3 optimizations
423   --disable-sse4           disable SSE4 optimizations
424   --disable-sse42          disable SSE4.2 optimizations
425   --disable-avx            disable AVX optimizations
426   --disable-xop            disable XOP optimizations
427   --disable-fma3           disable FMA3 optimizations
428   --disable-fma4           disable FMA4 optimizations
429   --disable-avx2           disable AVX2 optimizations
430   --disable-avx512         disable AVX-512 optimizations
431   --disable-aesni          disable AESNI optimizations
432   --disable-armv5te        disable armv5te optimizations
433   --disable-armv6          disable armv6 optimizations
434   --disable-armv6t2        disable armv6t2 optimizations
435   --disable-vfp            disable VFP optimizations
436   --disable-neon           disable NEON optimizations
437   --disable-inline-asm     disable use of inline assembly
438   --disable-x86asm         disable use of standalone x86 assembly
439   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
440   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
441   --disable-msa            disable MSA optimizations
442   --disable-mipsfpu        disable floating point MIPS optimizations
443   --disable-mmi            disable Loongson SIMD optimizations
444   --disable-fast-unaligned consider unaligned accesses slow
445
446 Developer options (useful when working on FFmpeg itself):
447   --disable-debug          disable debugging symbols
448   --enable-debug=LEVEL     set the debug level [$debuglevel]
449   --disable-optimizations  disable compiler optimizations
450   --enable-extra-warnings  enable more compiler warnings
451   --disable-stripping      disable stripping of executables and shared libraries
452   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
453                            2 causes a slowdown at runtime.
454   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
455   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
456                            leaks and errors, using the specified valgrind binary.
457                            Cannot be combined with --target-exec
458   --enable-ftrapv          Trap arithmetic overflows
459   --samples=PATH           location of test samples for FATE, if not set use
460                            \$FATE_SAMPLES at make invocation time.
461   --enable-neon-clobber-test check NEON registers for clobbering (should be
462                            used only for debugging purposes)
463   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
464                            should be used only for debugging purposes)
465   --enable-random          randomly enable/disable components
466   --disable-random
467   --enable-random=LIST     randomly enable/disable specific components or
468   --disable-random=LIST    component groups. LIST is a comma-separated list
469                            of NAME[:PROB] entries where NAME is a component
470                            (group) and PROB the probability associated with
471                            NAME (default 0.5).
472   --random-seed=VALUE      seed value for --enable/disable-random
473   --disable-valgrind-backtrace do not print a backtrace under Valgrind
474                            (only applies to --disable-optimizations builds)
475   --enable-osfuzz          Enable building fuzzer tool
476   --libfuzzer=PATH         path to libfuzzer
477   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
478                            in the name) of tests whose result is ignored
479   --enable-linux-perf      enable Linux Performance Monitor API
480
481 NOTE: Object files are built at the place where configure is launched.
482 EOF
483   exit 0
484 }
485
486 if test -t 1 && which tput >/dev/null 2>&1; then
487     ncolors=$(tput colors)
488     if test -n "$ncolors" && test $ncolors -ge 8; then
489         bold_color=$(tput bold)
490         warn_color=$(tput setaf 3)
491         error_color=$(tput setaf 1)
492         reset_color=$(tput sgr0)
493     fi
494     # 72 used instead of 80 since that's the default of pr
495     ncols=$(tput cols)
496 fi
497 : ${ncols:=72}
498
499 log(){
500     echo "$@" >> $logfile
501 }
502
503 log_file(){
504     log BEGIN $1
505     pr -n -t $1 >> $logfile
506     log END $1
507 }
508
509 warn(){
510     log "WARNING: $*"
511     WARNINGS="${WARNINGS}WARNING: $*\n"
512 }
513
514 die(){
515     log "$@"
516     echo "$error_color$bold_color$@$reset_color"
517     cat <<EOF
518
519 If you think configure made a mistake, make sure you are using the latest
520 version from Git.  If the latest version fails, report the problem to the
521 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
522 EOF
523     if disabled logging; then
524         cat <<EOF
525 Rerun configure with logging enabled (do not use --disable-logging), and
526 include the log this produces with your report.
527 EOF
528     else
529         cat <<EOF
530 Include the log file "$logfile" produced by configure as this will help
531 solve the problem.
532 EOF
533     fi
534     exit 1
535 }
536
537 # Avoid locale weirdness, besides we really just want to translate ASCII.
538 toupper(){
539     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
540 }
541
542 tolower(){
543     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
544 }
545
546 c_escape(){
547     echo "$*" | sed 's/["\\]/\\\0/g'
548 }
549
550 sh_quote(){
551     v=$(echo "$1" | sed "s/'/'\\\\''/g")
552     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
553     echo "$v"
554 }
555
556 cleanws(){
557     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
558 }
559
560 filter(){
561     pat=$1
562     shift
563     for v; do
564         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
565     done
566 }
567
568 filter_out(){
569     pat=$1
570     shift
571     for v; do
572         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
573     done
574 }
575
576 map(){
577     m=$1
578     shift
579     for v; do eval $m; done
580 }
581
582 add_suffix(){
583     suffix=$1
584     shift
585     for v; do echo ${v}${suffix}; done
586 }
587
588 remove_suffix(){
589     suffix=$1
590     shift
591     for v; do echo ${v%$suffix}; done
592 }
593
594 set_all(){
595     value=$1
596     shift
597     for var in $*; do
598         eval $var=$value
599     done
600 }
601
602 set_weak(){
603     value=$1
604     shift
605     for var; do
606         eval : \${$var:=$value}
607     done
608 }
609
610 sanitize_var_name(){
611     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
612 }
613
614 set_sanitized(){
615     var=$1
616     shift
617     eval $(sanitize_var_name "$var")='$*'
618 }
619
620 get_sanitized(){
621     eval echo \$$(sanitize_var_name "$1")
622 }
623
624 pushvar(){
625     for pvar in $*; do
626         eval level=\${${pvar}_level:=0}
627         eval ${pvar}_${level}="\$$pvar"
628         eval ${pvar}_level=$(($level+1))
629     done
630 }
631
632 popvar(){
633     for pvar in $*; do
634         eval level=\${${pvar}_level:-0}
635         test $level = 0 && continue
636         eval level=$(($level-1))
637         eval $pvar="\${${pvar}_${level}}"
638         eval ${pvar}_level=$level
639         eval unset ${pvar}_${level}
640     done
641 }
642
643 request(){
644     for var in $*; do
645         eval ${var}_requested=yes
646         eval $var=
647     done
648 }
649
650 enable(){
651     set_all yes $*
652 }
653
654 disable(){
655     set_all no $*
656 }
657
658 enable_weak(){
659     set_weak yes $*
660 }
661
662 disable_weak(){
663     set_weak no $*
664 }
665
666 enable_sanitized(){
667     for var; do
668         enable $(sanitize_var_name $var)
669     done
670 }
671
672 disable_sanitized(){
673     for var; do
674         disable $(sanitize_var_name $var)
675     done
676 }
677
678 do_enable_deep(){
679     for var; do
680         enabled $var && continue
681         set -- $var
682         eval enable_deep \$${var}_select
683         var=$1
684         eval enable_deep_weak \$${var}_suggest
685     done
686 }
687
688 enable_deep(){
689     do_enable_deep $*
690     enable $*
691 }
692
693 enable_deep_weak(){
694     for var; do
695         disabled $var && continue
696         set -- $var
697         do_enable_deep $var
698         var=$1
699         enable_weak $var
700     done
701 }
702
703 requested(){
704     test "${1#!}" = "$1" && op="=" || op="!="
705     eval test "x\$${1#!}_requested" $op "xyes"
706 }
707
708 enabled(){
709     test "${1#!}" = "$1" && op="=" || op="!="
710     eval test "x\$${1#!}" $op "xyes"
711 }
712
713 disabled(){
714     test "${1#!}" = "$1" && op="=" || op="!="
715     eval test "x\$${1#!}" $op "xno"
716 }
717
718 enabled_all(){
719     for opt; do
720         enabled $opt || return 1
721     done
722 }
723
724 disabled_all(){
725     for opt; do
726         disabled $opt || return 1
727     done
728 }
729
730 enabled_any(){
731     for opt; do
732         enabled $opt && return 0
733     done
734 }
735
736 disabled_any(){
737     for opt; do
738         disabled $opt && return 0
739     done
740     return 1
741 }
742
743 set_default(){
744     for opt; do
745         eval : \${$opt:=\$${opt}_default}
746     done
747 }
748
749 is_in(){
750     value=$1
751     shift
752     for var in $*; do
753         [ $var = $value ] && return 0
754     done
755     return 1
756 }
757
758 # The cfg loop is very hot (several thousands iterations), and in bash also
759 # potentialy quite slow. Try to abort the iterations early, preferably without
760 # calling functions. 70%+ of the time cfg is already done or without deps.
761 check_deps(){
762     for cfg; do
763         eval [ x\$${cfg}_checking = xdone ] && continue
764         eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
765
766         eval "
767         dep_all=\$${cfg}_deps
768         dep_any=\$${cfg}_deps_any
769         dep_con=\$${cfg}_conflict
770         dep_sel=\$${cfg}_select
771         dep_sgs=\$${cfg}_suggest
772         dep_ifa=\$${cfg}_if
773         dep_ifn=\$${cfg}_if_any
774         "
775
776         # most of the time here $cfg has no deps - avoid costly no-op work
777         if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
778             eval ${cfg}_checking=inprogress
779
780             set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
781             check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
782             cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
783
784             [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
785             [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
786             enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
787             enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
788             disabled_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
789             disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
790
791             enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
792
793             for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
794                 # filter out library deps, these do not belong in extralibs
795                 is_in $dep $LIBRARY_LIST && continue
796                 enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
797             done
798         fi
799
800         eval ${cfg}_checking=done
801     done
802 }
803
804 print_config(){
805     pfx=$1
806     files=$2
807     shift 2
808     map 'eval echo "$v \${$v:-no}"' "$@" |
809     awk "BEGIN { split(\"$files\", files) }
810         {
811             c = \"$pfx\" toupper(\$1);
812             v = \$2;
813             sub(/yes/, 1, v);
814             sub(/no/,  0, v);
815             for (f in files) {
816                 file = files[f];
817                 if (file ~ /\\.h\$/) {
818                     printf(\"#define %s %d\\n\", c, v) >>file;
819                 } else if (file ~ /\\.asm\$/) {
820                     printf(\"%%define %s %d\\n\", c, v) >>file;
821                 } else if (file ~ /\\.mak\$/) {
822                     n = -v ? \"\" : \"!\";
823                     printf(\"%s%s=yes\\n\", n, c) >>file;
824                 } else if (file ~ /\\.texi\$/) {
825                     pre = -v ? \"\" : \"@c \";
826                     yesno = \$2;
827                     c2 = tolower(c);
828                     gsub(/_/, \"-\", c2);
829                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
830                 }
831             }
832         }"
833 }
834
835 print_enabled(){
836     suf=$1
837     shift
838     for v; do
839         enabled $v && printf "%s\n" ${v%$suf}
840     done
841 }
842
843 append(){
844     var=$1
845     shift
846     eval "$var=\"\$$var $*\""
847 }
848
849 prepend(){
850     var=$1
851     shift
852     eval "$var=\"$* \$$var\""
853 }
854
855 reverse () {
856     eval '
857         reverse_out=
858         for v in $'$1'; do
859             reverse_out="$v $reverse_out"
860         done
861         '$1'=$reverse_out
862     '
863 }
864
865 # keeps the last occurence of each non-unique item
866 unique(){
867     unique_out=
868     eval unique_in=\$$1
869     reverse unique_in
870     for v in $unique_in; do
871         # " $unique_out" +space such that every item is surrounded with spaces
872         case " $unique_out" in *" $v "*) continue; esac  # already in list
873         unique_out="$unique_out$v "
874     done
875     reverse unique_out
876     eval $1=\$unique_out
877 }
878
879 resolve(){
880     resolve_out=
881     eval resolve_in=\$$1
882     for v in $resolve_in; do
883         eval 'resolve_out="$resolve_out$'$v' "'
884     done
885     eval $1=\$resolve_out
886 }
887
888 add_cppflags(){
889     append CPPFLAGS "$@"
890 }
891
892 add_cflags(){
893     append CFLAGS $($cflags_filter "$@")
894 }
895
896 add_cflags_headers(){
897     append CFLAGS_HEADERS $($cflags_filter "$@")
898 }
899
900 add_cxxflags(){
901     append CXXFLAGS $($cflags_filter "$@")
902 }
903
904 add_objcflags(){
905     append OBJCFLAGS $($objcflags_filter "$@")
906 }
907
908 add_asflags(){
909     append ASFLAGS $($asflags_filter "$@")
910 }
911
912 add_ldflags(){
913     append LDFLAGS $($ldflags_filter "$@")
914 }
915
916 add_ldexeflags(){
917     append LDEXEFLAGS $($ldflags_filter "$@")
918 }
919
920 add_ldsoflags(){
921     append LDSOFLAGS $($ldflags_filter "$@")
922 }
923
924 add_extralibs(){
925     prepend extralibs $($ldflags_filter "$@")
926 }
927
928 add_stripflags(){
929     append ASMSTRIPFLAGS "$@"
930 }
931
932 add_host_cppflags(){
933     append host_cppflags "$@"
934 }
935
936 add_host_cflags(){
937     append host_cflags $($host_cflags_filter "$@")
938 }
939
940 add_host_ldflags(){
941     append host_ldflags $($host_ldflags_filter "$@")
942 }
943
944 add_compat(){
945     append compat_objs $1
946     shift
947     map 'add_cppflags -D$v' "$@"
948 }
949
950 test_cmd(){
951     log "$@"
952     "$@" >> $logfile 2>&1
953 }
954
955 test_stat(){
956     log test_stat "$@"
957     stat "$1" >> $logfile 2>&1
958 }
959
960 cc_e(){
961     eval printf '%s\\n' $CC_E
962 }
963
964 cc_o(){
965     eval printf '%s\\n' $CC_O
966 }
967
968 as_o(){
969     eval printf '%s\\n' $AS_O
970 }
971
972 x86asm_o(){
973     eval printf '%s\\n' $X86ASM_O
974 }
975
976 ld_o(){
977     eval printf '%s\\n' $LD_O
978 }
979
980 hostcc_e(){
981     eval printf '%s\\n' $HOSTCC_E
982 }
983
984 hostcc_o(){
985     eval printf '%s\\n' $HOSTCC_O
986 }
987
988 test_cc(){
989     log test_cc "$@"
990     cat > $TMPC
991     log_file $TMPC
992     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
993 }
994
995 test_cxx(){
996     log test_cxx "$@"
997     cat > $TMPCPP
998     log_file $TMPCPP
999     test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
1000 }
1001
1002 test_objcc(){
1003     log test_objcc "$@"
1004     cat > $TMPM
1005     log_file $TMPM
1006     test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
1007 }
1008
1009 test_cpp(){
1010     log test_cpp "$@"
1011     cat > $TMPC
1012     log_file $TMPC
1013     test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
1014 }
1015
1016 test_as(){
1017     log test_as "$@"
1018     cat > $TMPS
1019     log_file $TMPS
1020     test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
1021 }
1022
1023 test_x86asm(){
1024     log test_x86asm "$@"
1025     echo "$1" > $TMPASM
1026     log_file $TMPASM
1027     shift
1028     test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
1029 }
1030
1031 check_cmd(){
1032     log check_cmd "$@"
1033     cmd=$1
1034     disabled $cmd && return
1035     disable $cmd
1036     test_cmd $@ && enable $cmd
1037 }
1038
1039 check_as(){
1040     log check_as "$@"
1041     name=$1
1042     code=$2
1043     shift 2
1044     disable $name
1045     test_as $@ <<EOF && enable $name
1046 $code
1047 EOF
1048 }
1049
1050 check_inline_asm(){
1051     log check_inline_asm "$@"
1052     name="$1"
1053     code="$2"
1054     shift 2
1055     disable $name
1056     test_cc "$@" <<EOF && enable $name
1057 void foo(void){ __asm__ volatile($code); }
1058 EOF
1059 }
1060
1061 check_inline_asm_flags(){
1062     log check_inline_asm_flags "$@"
1063     name="$1"
1064     code="$2"
1065     flags=''
1066     shift 2
1067     while [ "$1" != "" ]; do
1068       append flags $1
1069       shift
1070     done;
1071     disable $name
1072     cat > $TMPC <<EOF
1073 void foo(void){ __asm__ volatile($code); }
1074 EOF
1075     log_file $TMPC
1076     test_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
1077     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
1078 }
1079
1080 check_insn(){
1081     log check_insn "$@"
1082     check_inline_asm ${1}_inline "\"$2\""
1083     check_as ${1}_external "$2"
1084 }
1085
1086 check_x86asm(){
1087     log check_x86asm "$@"
1088     name=$1
1089     shift
1090     disable $name
1091     test_x86asm "$@" && enable $name
1092 }
1093
1094 test_ld(){
1095     log test_ld "$@"
1096     type=$1
1097     shift 1
1098     flags=$(filter_out '-l*|*.so' $@)
1099     libs=$(filter '-l*|*.so' $@)
1100     test_$type $($cflags_filter $flags) || return
1101     flags=$($ldflags_filter $flags)
1102     libs=$($ldflags_filter $libs)
1103     test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1104 }
1105
1106 check_ld(){
1107     log check_ld "$@"
1108     type=$1
1109     name=$2
1110     shift 2
1111     disable $name
1112     test_ld $type $@ && enable $name
1113 }
1114
1115 print_include(){
1116     hdr=$1
1117     test "${hdr%.h}" = "${hdr}" &&
1118         echo "#include $hdr"    ||
1119         echo "#include <$hdr>"
1120 }
1121
1122 test_code(){
1123     log test_code "$@"
1124     check=$1
1125     headers=$2
1126     code=$3
1127     shift 3
1128     {
1129         for hdr in $headers; do
1130             print_include $hdr
1131         done
1132         echo "int main(void) { $code; return 0; }"
1133     } | test_$check "$@"
1134 }
1135
1136 check_cppflags(){
1137     log check_cppflags "$@"
1138     test_cpp "$@" <<EOF && append CPPFLAGS "$@"
1139 #include <stdlib.h>
1140 EOF
1141 }
1142
1143 test_cflags(){
1144     log test_cflags "$@"
1145     set -- $($cflags_filter "$@")
1146     test_cc "$@" <<EOF
1147 int x;
1148 EOF
1149 }
1150
1151 check_cflags(){
1152     log check_cflags "$@"
1153     test_cflags "$@" && add_cflags "$@"
1154 }
1155
1156 check_cxxflags(){
1157     log check_cxxflags "$@"
1158     set -- $($cflags_filter "$@")
1159     test_cxx "$@" <<EOF && append CXXFLAGS "$@"
1160 int x;
1161 EOF
1162 }
1163
1164 test_objcflags(){
1165     log test_objcflags "$@"
1166     set -- $($objcflags_filter "$@")
1167     test_objcc "$@" <<EOF
1168 int x;
1169 EOF
1170 }
1171
1172 check_objcflags(){
1173     log check_objcflags "$@"
1174     test_objcflags "$@" && add_objcflags "$@"
1175 }
1176
1177 test_ldflags(){
1178     log test_ldflags "$@"
1179     set -- $($ldflags_filter "$@")
1180     test_ld "cc" "$@" <<EOF
1181 int main(void){ return 0; }
1182 EOF
1183 }
1184
1185 check_ldflags(){
1186     log check_ldflags "$@"
1187     test_ldflags "$@" && add_ldflags "$@"
1188 }
1189
1190 test_stripflags(){
1191     log test_stripflags "$@"
1192     # call test_cc to get a fresh TMPO
1193     test_cc <<EOF
1194 int main(void) { return 0; }
1195 EOF
1196     test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1197 }
1198
1199 check_stripflags(){
1200     log check_stripflags "$@"
1201     test_stripflags "$@" && add_stripflags "$@"
1202 }
1203
1204 check_headers(){
1205     log check_headers "$@"
1206     headers=$1
1207     shift
1208     disable_sanitized $headers
1209     {
1210         for hdr in $headers; do
1211             print_include $hdr
1212         done
1213         echo "int x;"
1214     } | test_cpp "$@" && enable_sanitized $headers
1215 }
1216
1217 check_header_objcc(){
1218     log check_header_objcc "$@"
1219     rm -f -- "$TMPO"
1220     header=$1
1221     shift
1222     disable_sanitized $header
1223     {
1224        echo "#include <$header>"
1225        echo "int main(void) { return 0; }"
1226     } | test_objcc && test_stat "$TMPO" && enable_sanitized $header
1227 }
1228
1229 check_apple_framework(){
1230     log check_apple_framework "$@"
1231     framework="$1"
1232     name="$(tolower $framework)"
1233     header="${framework}/${framework}.h"
1234     disable $name
1235     check_header_objcc $header &&
1236         enable $name && eval ${name}_extralibs='"-framework $framework"'
1237 }
1238
1239 check_func(){
1240     log check_func "$@"
1241     func=$1
1242     shift
1243     disable $func
1244     test_ld "cc" "$@" <<EOF && enable $func
1245 extern int $func();
1246 int main(void){ $func(); }
1247 EOF
1248 }
1249
1250 check_complexfunc(){
1251     log check_complexfunc "$@"
1252     func=$1
1253     narg=$2
1254     shift 2
1255     test $narg = 2 && args="f, g" || args="f * I"
1256     disable $func
1257     test_ld "cc" "$@" <<EOF && enable $func
1258 #include <complex.h>
1259 #include <math.h>
1260 float foo(complex float f, complex float g) { return $func($args); }
1261 int main(void){ return (int) foo; }
1262 EOF
1263 }
1264
1265 check_mathfunc(){
1266     log check_mathfunc "$@"
1267     func=$1
1268     narg=$2
1269     shift 2
1270     test $narg = 2 && args="f, g" || args="f"
1271     disable $func
1272     test_ld "cc" "$@" <<EOF && enable $func
1273 #include <math.h>
1274 float foo(float f, float g) { return $func($args); }
1275 int main(void){ return (int) foo; }
1276 EOF
1277 }
1278
1279 check_func_headers(){
1280     log check_func_headers "$@"
1281     headers=$1
1282     funcs=$2
1283     shift 2
1284     {
1285         for hdr in $headers; do
1286             print_include $hdr
1287         done
1288         echo "#include <stdint.h>"
1289         for func in $funcs; do
1290             echo "long check_$func(void) { return (long) $func; }"
1291         done
1292         echo "int main(void) { int ret = 0;"
1293         # LTO could optimize out the test functions without this
1294         for func in $funcs; do
1295             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1296         done
1297         echo "return ret; }"
1298     } | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
1299 }
1300
1301 check_class_headers_cpp(){
1302     log check_class_headers_cpp "$@"
1303     headers=$1
1304     classes=$2
1305     shift 2
1306     {
1307         for hdr in $headers; do
1308             echo "#include <$hdr>"
1309         done
1310         echo "int main(void) { "
1311         i=1
1312         for class in $classes; do
1313             echo "$class obj$i;"
1314             i=$(expr $i + 1)
1315         done
1316         echo "return 0; }"
1317     } | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
1318 }
1319
1320 test_cpp_condition(){
1321     log test_cpp_condition "$@"
1322     header=$1
1323     condition=$2
1324     shift 2
1325     test_cpp "$@" <<EOF
1326 #include <$header>
1327 #if !($condition)
1328 #error "unsatisfied condition: $condition"
1329 #endif
1330 EOF
1331 }
1332
1333 check_cpp_condition(){
1334     log check_cpp_condition "$@"
1335     name=$1
1336     shift 1
1337     disable $name
1338     test_cpp_condition "$@" && enable $name
1339 }
1340
1341 test_cflags_cc(){
1342     log test_cflags_cc "$@"
1343     flags=$1
1344     header=$2
1345     condition=$3
1346     shift 3
1347     set -- $($cflags_filter "$flags")
1348     test_cc "$@" <<EOF
1349 #include <$header>
1350 #if !($condition)
1351 #error "unsatisfied condition: $condition"
1352 #endif
1353 EOF
1354 }
1355
1356 check_lib(){
1357     log check_lib "$@"
1358     name="$1"
1359     headers="$2"
1360     funcs="$3"
1361     shift 3
1362     disable $name
1363     check_func_headers "$headers" "$funcs" "$@" &&
1364         enable $name && eval ${name}_extralibs="\$@"
1365 }
1366
1367 check_lib_cpp(){
1368     log check_lib_cpp "$@"
1369     name="$1"
1370     headers="$2"
1371     classes="$3"
1372     shift 3
1373     disable $name
1374     check_class_headers_cpp "$headers" "$classes" "$@" &&
1375         enable $name && eval ${name}_extralibs="\$@"
1376 }
1377
1378 test_pkg_config(){
1379     log test_pkg_config "$@"
1380     name="$1"
1381     pkg_version="$2"
1382     pkg="${2%% *}"
1383     headers="$3"
1384     funcs="$4"
1385     shift 4
1386     disable $name
1387     test_cmd $pkg_config --exists --print-errors $pkg_version || return
1388     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1389     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1390     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1391         enable $name &&
1392         set_sanitized "${name}_cflags"    $pkg_cflags &&
1393         set_sanitized "${name}_extralibs" $pkg_libs
1394 }
1395
1396 check_pkg_config(){
1397     log check_pkg_config "$@"
1398     name="$1"
1399     test_pkg_config "$@" &&
1400         eval add_cflags \$${name}_cflags
1401 }
1402
1403 test_exec(){
1404     test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1405 }
1406
1407 check_exec_crash(){
1408     log check_exec_crash "$@"
1409     code=$(cat)
1410
1411     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1412     # are safe but may not be available everywhere.  Thus we use
1413     # raise(SIGTERM) instead.  The check is run in a subshell so we
1414     # can redirect the "Terminated" message from the shell.  SIGBUS
1415     # is not defined by standard C so it is used conditionally.
1416
1417     (test_exec "$@") >> $logfile 2>&1 <<EOF
1418 #include <signal.h>
1419 static void sighandler(int sig){
1420     raise(SIGTERM);
1421 }
1422 int foo(void){
1423     $code
1424 }
1425 int (*func_ptr)(void) = foo;
1426 int main(void){
1427     signal(SIGILL, sighandler);
1428     signal(SIGFPE, sighandler);
1429     signal(SIGSEGV, sighandler);
1430 #ifdef SIGBUS
1431     signal(SIGBUS, sighandler);
1432 #endif
1433     return func_ptr();
1434 }
1435 EOF
1436 }
1437
1438 check_type(){
1439     log check_type "$@"
1440     headers=$1
1441     type=$2
1442     shift 2
1443     disable_sanitized "$type"
1444     test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1445 }
1446
1447 check_struct(){
1448     log check_struct "$@"
1449     headers=$1
1450     struct=$2
1451     member=$3
1452     shift 3
1453     disable_sanitized "${struct}_${member}"
1454     test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1455         enable_sanitized "${struct}_${member}"
1456 }
1457
1458 check_builtin(){
1459     log check_builtin "$@"
1460     name=$1
1461     headers=$2
1462     builtin=$3
1463     shift 3
1464     disable "$name"
1465     test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1466 }
1467
1468 check_compile_assert(){
1469     log check_compile_assert "$@"
1470     name=$1
1471     headers=$2
1472     condition=$3
1473     shift 3
1474     disable "$name"
1475     test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1476 }
1477
1478 check_cc(){
1479     log check_cc "$@"
1480     name=$1
1481     shift
1482     disable "$name"
1483     test_code cc "$@" && enable "$name"
1484 }
1485
1486 require(){
1487     log require "$@"
1488     name_version="$1"
1489     name="${1%% *}"
1490     shift
1491     check_lib $name "$@" || die "ERROR: $name_version not found"
1492 }
1493
1494 require_cc(){
1495     log require_cc "$@"
1496     name="$1"
1497     check_cc "$@" || die "ERROR: $name failed"
1498 }
1499
1500 require_cpp(){
1501     name="$1"
1502     headers="$2"
1503     classes="$3"
1504     shift 3
1505     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1506 }
1507
1508 require_headers(){
1509     log require_headers "$@"
1510     headers="$1"
1511     check_headers "$@" || die "ERROR: $headers not found"
1512 }
1513
1514 require_cpp_condition(){
1515     log require_cpp_condition "$@"
1516     condition="$3"
1517     check_cpp_condition "$@" || die "ERROR: $condition not satisfied"
1518 }
1519
1520 require_pkg_config(){
1521     log require_pkg_config "$@"
1522     pkg_version="$2"
1523     check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
1524 }
1525
1526 test_host_cc(){
1527     log test_host_cc "$@"
1528     cat > $TMPC
1529     log_file $TMPC
1530     test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1531 }
1532
1533 test_host_cpp(){
1534     log test_host_cpp "$@"
1535     cat > $TMPC
1536     log_file $TMPC
1537     test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1538 }
1539
1540 check_host_cppflags(){
1541     log check_host_cppflags "$@"
1542     test_host_cpp "$@" <<EOF && append host_cppflags "$@"
1543 #include <stdlib.h>
1544 EOF
1545 }
1546
1547 check_host_cflags(){
1548     log check_host_cflags "$@"
1549     set -- $($host_cflags_filter "$@")
1550     test_host_cc "$@" <<EOF && append host_cflags "$@"
1551 int x;
1552 EOF
1553 }
1554
1555 test_host_cpp_condition(){
1556     log test_host_cpp_condition "$@"
1557     header=$1
1558     condition=$2
1559     shift 2
1560     test_host_cpp "$@" <<EOF
1561 #include <$header>
1562 #if !($condition)
1563 #error "unsatisfied condition: $condition"
1564 #endif
1565 EOF
1566 }
1567
1568 check_host_cpp_condition(){
1569     log check_host_cpp_condition "$@"
1570     name=$1
1571     shift 1
1572     disable $name
1573     test_host_cpp_condition "$@" && enable $name
1574 }
1575
1576 cp_if_changed(){
1577     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1578     mkdir -p "$(dirname $2)"
1579     cp -f "$1" "$2"
1580 }
1581
1582 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1583 # system-dependent things.
1584
1585 AVCODEC_COMPONENTS="
1586     bsfs
1587     decoders
1588     encoders
1589     hwaccels
1590     parsers
1591 "
1592
1593 AVDEVICE_COMPONENTS="
1594     indevs
1595     outdevs
1596 "
1597
1598 AVFILTER_COMPONENTS="
1599     filters
1600 "
1601
1602 AVFORMAT_COMPONENTS="
1603     demuxers
1604     muxers
1605     protocols
1606 "
1607
1608 COMPONENT_LIST="
1609     $AVCODEC_COMPONENTS
1610     $AVDEVICE_COMPONENTS
1611     $AVFILTER_COMPONENTS
1612     $AVFORMAT_COMPONENTS
1613 "
1614
1615 EXAMPLE_LIST="
1616     avio_dir_cmd_example
1617     avio_reading_example
1618     decode_audio_example
1619     decode_video_example
1620     demuxing_decoding_example
1621     encode_audio_example
1622     encode_video_example
1623     extract_mvs_example
1624     filter_audio_example
1625     filtering_audio_example
1626     filtering_video_example
1627     http_multiclient_example
1628     hw_decode_example
1629     metadata_example
1630     muxing_example
1631     qsvdec_example
1632     remuxing_example
1633     resampling_audio_example
1634     scaling_video_example
1635     transcode_aac_example
1636     transcoding_example
1637     vaapi_encode_example
1638     vaapi_transcode_example
1639 "
1640
1641 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1642     alsa
1643     appkit
1644     avfoundation
1645     bzlib
1646     coreimage
1647     iconv
1648     libxcb
1649     libxcb_shm
1650     libxcb_shape
1651     libxcb_xfixes
1652     lzma
1653     schannel
1654     sdl2
1655     securetransport
1656     sndio
1657     xlib
1658     zlib
1659 "
1660
1661 EXTERNAL_LIBRARY_GPL_LIST="
1662     avisynth
1663     frei0r
1664     libcdio
1665     libdavs2
1666     librubberband
1667     libvidstab
1668     libx264
1669     libx265
1670     libxavs
1671     libxavs2
1672     libxvid
1673 "
1674
1675 EXTERNAL_LIBRARY_NONFREE_LIST="
1676     decklink
1677     libndi_newtek
1678     libfdk_aac
1679     openssl
1680     libtls
1681 "
1682
1683 EXTERNAL_LIBRARY_VERSION3_LIST="
1684     gmp
1685     liblensfun
1686     libopencore_amrnb
1687     libopencore_amrwb
1688     libvmaf
1689     libvo_amrwbenc
1690     mbedtls
1691     rkmpp
1692 "
1693
1694 EXTERNAL_LIBRARY_GPLV3_LIST="
1695     libsmbclient
1696 "
1697
1698 EXTERNAL_LIBRARY_LIST="
1699     $EXTERNAL_LIBRARY_GPL_LIST
1700     $EXTERNAL_LIBRARY_NONFREE_LIST
1701     $EXTERNAL_LIBRARY_VERSION3_LIST
1702     $EXTERNAL_LIBRARY_GPLV3_LIST
1703     chromaprint
1704     gcrypt
1705     gnutls
1706     jni
1707     ladspa
1708     libaom
1709     libass
1710     libbluray
1711     libbs2b
1712     libcaca
1713     libcelt
1714     libcodec2
1715     libdc1394
1716     libdrm
1717     libflite
1718     libfontconfig
1719     libfreetype
1720     libfribidi
1721     libgme
1722     libgsm
1723     libiec61883
1724     libilbc
1725     libjack
1726     libklvanc
1727     libkvazaar
1728     libmodplug
1729     libmp3lame
1730     libmysofa
1731     libopencv
1732     libopenh264
1733     libopenjpeg
1734     libopenmpt
1735     libopus
1736     libpulse
1737     librsvg
1738     librtmp
1739     libshine
1740     libsmbclient
1741     libsnappy
1742     libsoxr
1743     libspeex
1744     libsrt
1745     libssh
1746     libtensorflow
1747     libtesseract
1748     libtheora
1749     libtwolame
1750     libv4l2
1751     libvorbis
1752     libvpx
1753     libwavpack
1754     libwebp
1755     libxml2
1756     libzimg
1757     libzmq
1758     libzvbi
1759     lv2
1760     mediacodec
1761     openal
1762     opengl
1763     vapoursynth
1764 "
1765
1766 HWACCEL_AUTODETECT_LIBRARY_LIST="
1767     amf
1768     audiotoolbox
1769     crystalhd
1770     cuda
1771     cuvid
1772     d3d11va
1773     dxva2
1774     ffnvcodec
1775     nvdec
1776     nvenc
1777     vaapi
1778     vdpau
1779     videotoolbox
1780     v4l2_m2m
1781     xvmc
1782 "
1783
1784 # catchall list of things that require external libs to link
1785 EXTRALIBS_LIST="
1786     cpu_init
1787     cws2fws
1788 "
1789
1790 HWACCEL_LIBRARY_NONFREE_LIST="
1791     cuda_sdk
1792     libnpp
1793 "
1794
1795 HWACCEL_LIBRARY_LIST="
1796     $HWACCEL_LIBRARY_NONFREE_LIST
1797     libmfx
1798     mmal
1799     omx
1800     opencl
1801 "
1802
1803 DOCUMENT_LIST="
1804     doc
1805     htmlpages
1806     manpages
1807     podpages
1808     txtpages
1809 "
1810
1811 FEATURE_LIST="
1812     ftrapv
1813     gray
1814     hardcoded_tables
1815     omx_rpi
1816     runtime_cpudetect
1817     safe_bitstream_reader
1818     shared
1819     small
1820     static
1821     swscale_alpha
1822 "
1823
1824 # this list should be kept in linking order
1825 LIBRARY_LIST="
1826     avdevice
1827     avfilter
1828     swscale
1829     postproc
1830     avformat
1831     avcodec
1832     swresample
1833     avresample
1834     avutil
1835 "
1836
1837 LICENSE_LIST="
1838     gpl
1839     nonfree
1840     version3
1841 "
1842
1843 PROGRAM_LIST="
1844     ffplay
1845     ffprobe
1846     ffmpeg
1847 "
1848
1849 SUBSYSTEM_LIST="
1850     dct
1851     dwt
1852     error_resilience
1853     faan
1854     fast_unaligned
1855     fft
1856     lsp
1857     lzo
1858     mdct
1859     pixelutils
1860     network
1861     rdft
1862 "
1863
1864 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1865 CONFIG_LIST="
1866     $DOCUMENT_LIST
1867     $EXAMPLE_LIST
1868     $EXTERNAL_LIBRARY_LIST
1869     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1870     $HWACCEL_LIBRARY_LIST
1871     $HWACCEL_AUTODETECT_LIBRARY_LIST
1872     $FEATURE_LIST
1873     $LICENSE_LIST
1874     $LIBRARY_LIST
1875     $PROGRAM_LIST
1876     $SUBSYSTEM_LIST
1877     autodetect
1878     fontconfig
1879     linux_perf
1880     memory_poisoning
1881     neon_clobber_test
1882     ossfuzz
1883     pic
1884     thumb
1885     valgrind_backtrace
1886     xmm_clobber_test
1887     $COMPONENT_LIST
1888 "
1889
1890 THREADS_LIST="
1891     pthreads
1892     os2threads
1893     w32threads
1894 "
1895
1896 ATOMICS_LIST="
1897     atomics_gcc
1898     atomics_suncc
1899     atomics_win32
1900 "
1901
1902 AUTODETECT_LIBS="
1903     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1904     $HWACCEL_AUTODETECT_LIBRARY_LIST
1905     $THREADS_LIST
1906 "
1907
1908 ARCH_LIST="
1909     aarch64
1910     alpha
1911     arm
1912     avr32
1913     avr32_ap
1914     avr32_uc
1915     bfin
1916     ia64
1917     m68k
1918     mips
1919     mips64
1920     parisc
1921     ppc
1922     ppc64
1923     s390
1924     sh4
1925     sparc
1926     sparc64
1927     tilegx
1928     tilepro
1929     tomi
1930     x86
1931     x86_32
1932     x86_64
1933 "
1934
1935 ARCH_EXT_LIST_ARM="
1936     armv5te
1937     armv6
1938     armv6t2
1939     armv8
1940     neon
1941     vfp
1942     vfpv3
1943     setend
1944 "
1945
1946 ARCH_EXT_LIST_MIPS="
1947     mipsfpu
1948     mips32r2
1949     mips32r5
1950     mips64r2
1951     mips32r6
1952     mips64r6
1953     mipsdsp
1954     mipsdspr2
1955     msa
1956 "
1957
1958 ARCH_EXT_LIST_LOONGSON="
1959     loongson2
1960     loongson3
1961     mmi
1962 "
1963
1964 ARCH_EXT_LIST_X86_SIMD="
1965     aesni
1966     amd3dnow
1967     amd3dnowext
1968     avx
1969     avx2
1970     avx512
1971     fma3
1972     fma4
1973     mmx
1974     mmxext
1975     sse
1976     sse2
1977     sse3
1978     sse4
1979     sse42
1980     ssse3
1981     xop
1982 "
1983
1984 ARCH_EXT_LIST_PPC="
1985     altivec
1986     dcbzl
1987     ldbrx
1988     power8
1989     ppc4xx
1990     vsx
1991 "
1992
1993 ARCH_EXT_LIST_X86="
1994     $ARCH_EXT_LIST_X86_SIMD
1995     cpunop
1996     i686
1997 "
1998
1999 ARCH_EXT_LIST="
2000     $ARCH_EXT_LIST_ARM
2001     $ARCH_EXT_LIST_PPC
2002     $ARCH_EXT_LIST_X86
2003     $ARCH_EXT_LIST_MIPS
2004     $ARCH_EXT_LIST_LOONGSON
2005 "
2006
2007 ARCH_FEATURES="
2008     aligned_stack
2009     fast_64bit
2010     fast_clz
2011     fast_cmov
2012     local_aligned
2013     simd_align_16
2014     simd_align_32
2015     simd_align_64
2016 "
2017
2018 BUILTIN_LIST="
2019     atomic_cas_ptr
2020     machine_rw_barrier
2021     MemoryBarrier
2022     mm_empty
2023     rdtsc
2024     sem_timedwait
2025     sync_val_compare_and_swap
2026 "
2027 HAVE_LIST_CMDLINE="
2028     inline_asm
2029     symver
2030     x86asm
2031 "
2032
2033 HAVE_LIST_PUB="
2034     bigendian
2035     fast_unaligned
2036 "
2037
2038 HEADERS_LIST="
2039     arpa_inet_h
2040     asm_types_h
2041     cdio_paranoia_h
2042     cdio_paranoia_paranoia_h
2043     cuda_h
2044     dispatch_dispatch_h
2045     dev_bktr_ioctl_bt848_h
2046     dev_bktr_ioctl_meteor_h
2047     dev_ic_bt8xx_h
2048     dev_video_bktr_ioctl_bt848_h
2049     dev_video_meteor_ioctl_meteor_h
2050     direct_h
2051     dirent_h
2052     dxgidebug_h
2053     dxva_h
2054     ES2_gl_h
2055     gsm_h
2056     io_h
2057     linux_perf_event_h
2058     machine_ioctl_bt848_h
2059     machine_ioctl_meteor_h
2060     malloc_h
2061     opencv2_core_core_c_h
2062     OpenGL_gl3_h
2063     poll_h
2064     sys_param_h
2065     sys_resource_h
2066     sys_select_h
2067     sys_soundcard_h
2068     sys_time_h
2069     sys_un_h
2070     sys_videoio_h
2071     termios_h
2072     udplite_h
2073     unistd_h
2074     valgrind_valgrind_h
2075     windows_h
2076     winsock2_h
2077 "
2078
2079 INTRINSICS_LIST="
2080     intrinsics_neon
2081 "
2082
2083 COMPLEX_FUNCS="
2084     cabs
2085     cexp
2086 "
2087
2088 MATH_FUNCS="
2089     atanf
2090     atan2f
2091     cbrt
2092     cbrtf
2093     copysign
2094     cosf
2095     erf
2096     exp2
2097     exp2f
2098     expf
2099     hypot
2100     isfinite
2101     isinf
2102     isnan
2103     ldexpf
2104     llrint
2105     llrintf
2106     log2
2107     log2f
2108     log10f
2109     lrint
2110     lrintf
2111     powf
2112     rint
2113     round
2114     roundf
2115     sinf
2116     trunc
2117     truncf
2118 "
2119
2120 SYSTEM_FEATURES="
2121     dos_paths
2122     libc_msvcrt
2123     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2124     section_data_rel_ro
2125     threads
2126     uwp
2127     winrt
2128 "
2129
2130 SYSTEM_FUNCS="
2131     access
2132     aligned_malloc
2133     arc4random
2134     clock_gettime
2135     closesocket
2136     CommandLineToArgvW
2137     fcntl
2138     getaddrinfo
2139     gethrtime
2140     getopt
2141     GetProcessAffinityMask
2142     GetProcessMemoryInfo
2143     GetProcessTimes
2144     getrusage
2145     GetSystemTimeAsFileTime
2146     gettimeofday
2147     glob
2148     glXGetProcAddress
2149     gmtime_r
2150     inet_aton
2151     isatty
2152     kbhit
2153     localtime_r
2154     lstat
2155     lzo1x_999_compress
2156     mach_absolute_time
2157     MapViewOfFile
2158     memalign
2159     mkstemp
2160     mmap
2161     mprotect
2162     nanosleep
2163     PeekNamedPipe
2164     posix_memalign
2165     pthread_cancel
2166     sched_getaffinity
2167     SecItemImport
2168     SetConsoleTextAttribute
2169     SetConsoleCtrlHandler
2170     setmode
2171     setrlimit
2172     Sleep
2173     strerror_r
2174     sysconf
2175     sysctl
2176     usleep
2177     UTGetOSTypeFromString
2178     VirtualAlloc
2179     wglGetProcAddress
2180 "
2181
2182 SYSTEM_LIBRARIES="
2183     bcrypt
2184     vaapi_drm
2185     vaapi_x11
2186     vdpau_x11
2187 "
2188
2189 TOOLCHAIN_FEATURES="
2190     as_arch_directive
2191     as_dn_directive
2192     as_fpu_directive
2193     as_func
2194     as_object_arch
2195     asm_mod_q
2196     blocks_extension
2197     ebp_available
2198     ebx_available
2199     gnu_as
2200     gnu_windres
2201     ibm_asm
2202     inline_asm_direct_symbol_refs
2203     inline_asm_labels
2204     inline_asm_nonlocal_labels
2205     pragma_deprecated
2206     rsync_contimeout
2207     symver_asm_label
2208     symver_gnu_asm
2209     vfp_args
2210     xform_asm
2211     xmm_clobbers
2212 "
2213
2214 TYPES_LIST="
2215     kCMVideoCodecType_HEVC
2216     socklen_t
2217     struct_addrinfo
2218     struct_group_source_req
2219     struct_ip_mreq_source
2220     struct_ipv6_mreq
2221     struct_msghdr_msg_flags
2222     struct_pollfd
2223     struct_rusage_ru_maxrss
2224     struct_sctp_event_subscribe
2225     struct_sockaddr_in6
2226     struct_sockaddr_sa_len
2227     struct_sockaddr_storage
2228     struct_stat_st_mtim_tv_nsec
2229     struct_v4l2_frmivalenum_discrete
2230 "
2231
2232 HAVE_LIST="
2233     $ARCH_EXT_LIST
2234     $(add_suffix _external $ARCH_EXT_LIST)
2235     $(add_suffix _inline   $ARCH_EXT_LIST)
2236     $ARCH_FEATURES
2237     $BUILTIN_LIST
2238     $COMPLEX_FUNCS
2239     $HAVE_LIST_CMDLINE
2240     $HAVE_LIST_PUB
2241     $HEADERS_LIST
2242     $INTRINSICS_LIST
2243     $MATH_FUNCS
2244     $SYSTEM_FEATURES
2245     $SYSTEM_FUNCS
2246     $SYSTEM_LIBRARIES
2247     $THREADS_LIST
2248     $TOOLCHAIN_FEATURES
2249     $TYPES_LIST
2250     makeinfo
2251     makeinfo_html
2252     opencl_d3d11
2253     opencl_drm_arm
2254     opencl_drm_beignet
2255     opencl_dxva2
2256     opencl_vaapi_beignet
2257     opencl_vaapi_intel_media
2258     perl
2259     pod2man
2260     texi2html
2261 "
2262
2263 # options emitted with CONFIG_ prefix but not available on the command line
2264 CONFIG_EXTRA="
2265     aandcttables
2266     ac3dsp
2267     adts_header
2268     audio_frame_queue
2269     audiodsp
2270     blockdsp
2271     bswapdsp
2272     cabac
2273     cbs
2274     cbs_av1
2275     cbs_h264
2276     cbs_h265
2277     cbs_jpeg
2278     cbs_mpeg2
2279     cbs_vp9
2280     dirac_parse
2281     dnn
2282     dvprofile
2283     exif
2284     faandct
2285     faanidct
2286     fdctdsp
2287     flacdsp
2288     fmtconvert
2289     frame_thread_encoder
2290     g722dsp
2291     golomb
2292     gplv3
2293     h263dsp
2294     h264chroma
2295     h264dsp
2296     h264parse
2297     h264pred
2298     h264qpel
2299     hevcparse
2300     hpeldsp
2301     huffman
2302     huffyuvdsp
2303     huffyuvencdsp
2304     idctdsp
2305     iirfilter
2306     mdct15
2307     intrax8
2308     iso_media
2309     ividsp
2310     jpegtables
2311     lgplv3
2312     libx262
2313     llauddsp
2314     llviddsp
2315     llvidencdsp
2316     lpc
2317     lzf
2318     me_cmp
2319     mpeg_er
2320     mpegaudio
2321     mpegaudiodsp
2322     mpegaudioheader
2323     mpegvideo
2324     mpegvideoenc
2325     mss34dsp
2326     pixblockdsp
2327     qpeldsp
2328     qsv
2329     qsvdec
2330     qsvenc
2331     qsvvpp
2332     rangecoder
2333     riffdec
2334     riffenc
2335     rtpdec
2336     rtpenc_chain
2337     rv34dsp
2338     sinewin
2339     snappy
2340     srtp
2341     startcode
2342     texturedsp
2343     texturedspenc
2344     tpeldsp
2345     vaapi_1
2346     vaapi_encode
2347     vc1dsp
2348     videodsp
2349     vp3dsp
2350     vp56dsp
2351     vp8dsp
2352     wma_freqs
2353     wmv2dsp
2354 "
2355
2356 CMDLINE_SELECT="
2357     $ARCH_EXT_LIST
2358     $CONFIG_LIST
2359     $HAVE_LIST_CMDLINE
2360     $THREADS_LIST
2361     asm
2362     cross_compile
2363     debug
2364     extra_warnings
2365     logging
2366     lto
2367     optimizations
2368     rpath
2369     stripping
2370 "
2371
2372 PATHS_LIST="
2373     bindir
2374     datadir
2375     docdir
2376     incdir
2377     libdir
2378     mandir
2379     pkgconfigdir
2380     prefix
2381     shlibdir
2382     install_name_dir
2383 "
2384
2385 CMDLINE_SET="
2386     $PATHS_LIST
2387     ar
2388     arch
2389     as
2390     assert_level
2391     build_suffix
2392     cc
2393     objcc
2394     cpu
2395     cross_prefix
2396     custom_allocator
2397     cxx
2398     dep_cc
2399     doxygen
2400     env
2401     extra_version
2402     gas
2403     host_cc
2404     host_cflags
2405     host_extralibs
2406     host_ld
2407     host_ldflags
2408     host_os
2409     ignore_tests
2410     install
2411     ld
2412     ln_s
2413     logfile
2414     malloc_prefix
2415     nm
2416     optflags
2417     nvcc
2418     nvccflags
2419     pkg_config
2420     pkg_config_flags
2421     progs_suffix
2422     random_seed
2423     ranlib
2424     samples
2425     strip
2426     sws_max_filter_size
2427     sysinclude
2428     sysroot
2429     target_exec
2430     target_os
2431     target_path
2432     target_samples
2433     tempprefix
2434     toolchain
2435     valgrind
2436     x86asmexe
2437 "
2438
2439 CMDLINE_APPEND="
2440     extra_cflags
2441     extra_cxxflags
2442     extra_objcflags
2443     host_cppflags
2444 "
2445
2446 # code dependency declarations
2447
2448 # architecture extensions
2449
2450 armv5te_deps="arm"
2451 armv6_deps="arm"
2452 armv6t2_deps="arm"
2453 armv8_deps="aarch64"
2454 neon_deps_any="aarch64 arm"
2455 intrinsics_neon_deps="neon"
2456 vfp_deps_any="aarch64 arm"
2457 vfpv3_deps="vfp"
2458 setend_deps="arm"
2459
2460 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2461
2462 altivec_deps="ppc"
2463 dcbzl_deps="ppc"
2464 ldbrx_deps="ppc"
2465 ppc4xx_deps="ppc"
2466 vsx_deps="altivec"
2467 power8_deps="vsx"
2468
2469 loongson2_deps="mips"
2470 loongson3_deps="mips"
2471 mips32r2_deps="mips"
2472 mips32r5_deps="mips"
2473 mips32r6_deps="mips"
2474 mips64r2_deps="mips"
2475 mips64r6_deps="mips"
2476 mipsfpu_deps="mips"
2477 mipsdsp_deps="mips"
2478 mipsdspr2_deps="mips"
2479 mmi_deps="mips"
2480 msa_deps="mipsfpu"
2481
2482 cpunop_deps="i686"
2483 x86_64_select="i686"
2484 x86_64_suggest="fast_cmov"
2485
2486 amd3dnow_deps="mmx"
2487 amd3dnowext_deps="amd3dnow"
2488 i686_deps="x86"
2489 mmx_deps="x86"
2490 mmxext_deps="mmx"
2491 sse_deps="mmxext"
2492 sse2_deps="sse"
2493 sse3_deps="sse2"
2494 ssse3_deps="sse3"
2495 sse4_deps="ssse3"
2496 sse42_deps="sse4"
2497 aesni_deps="sse42"
2498 avx_deps="sse42"
2499 xop_deps="avx"
2500 fma3_deps="avx"
2501 fma4_deps="avx"
2502 avx2_deps="avx"
2503 avx512_deps="avx2"
2504
2505 mmx_external_deps="x86asm"
2506 mmx_inline_deps="inline_asm x86"
2507 mmx_suggest="mmx_external mmx_inline"
2508
2509 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2510     eval dep=\$${ext}_deps
2511     eval ${ext}_external_deps='"${dep}_external"'
2512     eval ${ext}_inline_deps='"${dep}_inline"'
2513     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2514 done
2515
2516 aligned_stack_if_any="aarch64 ppc x86"
2517 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2518 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2519 fast_unaligned_if_any="aarch64 ppc x86"
2520 simd_align_16_if_any="altivec neon sse"
2521 simd_align_32_if_any="avx"
2522 simd_align_64_if_any="avx512"
2523
2524 # system capabilities
2525 linux_perf_deps="linux_perf_event_h"
2526 symver_if_any="symver_asm_label symver_gnu_asm"
2527 valgrind_backtrace_conflict="optimizations"
2528 valgrind_backtrace_deps="valgrind_valgrind_h"
2529
2530 # threading support
2531 atomics_gcc_if="sync_val_compare_and_swap"
2532 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2533 atomics_win32_if="MemoryBarrier"
2534 atomics_native_if_any="$ATOMICS_LIST"
2535 w32threads_deps="atomics_native"
2536 threads_if_any="$THREADS_LIST"
2537
2538 # subsystems
2539 cbs_av1_select="cbs"
2540 cbs_h264_select="cbs golomb"
2541 cbs_h265_select="cbs golomb"
2542 cbs_jpeg_select="cbs"
2543 cbs_mpeg2_select="cbs"
2544 cbs_vp9_select="cbs"
2545 dct_select="rdft"
2546 dirac_parse_select="golomb"
2547 dnn_suggest="libtensorflow"
2548 error_resilience_select="me_cmp"
2549 faandct_deps="faan"
2550 faandct_select="fdctdsp"
2551 faanidct_deps="faan"
2552 faanidct_select="idctdsp"
2553 h264dsp_select="startcode"
2554 hevcparse_select="golomb"
2555 frame_thread_encoder_deps="encoders threads"
2556 intrax8_select="blockdsp idctdsp"
2557 mdct_select="fft"
2558 mdct15_select="fft"
2559 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2560 mpeg_er_select="error_resilience"
2561 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2562 mpegaudiodsp_select="dct"
2563 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2564 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2565 vc1dsp_select="h264chroma qpeldsp startcode"
2566 rdft_select="fft"
2567
2568 # decoders / encoders
2569 aac_decoder_select="adts_header mdct15 mdct sinewin"
2570 aac_fixed_decoder_select="adts_header mdct sinewin"
2571 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2572 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2573 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2574 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2575 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2576 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2577 adpcm_g722_decoder_select="g722dsp"
2578 adpcm_g722_encoder_select="g722dsp"
2579 aic_decoder_select="golomb idctdsp"
2580 alac_encoder_select="lpc"
2581 als_decoder_select="bswapdsp"
2582 amrnb_decoder_select="lsp"
2583 amrwb_decoder_select="lsp"
2584 amv_decoder_select="sp5x_decoder exif"
2585 amv_encoder_select="jpegtables mpegvideoenc"
2586 ape_decoder_select="bswapdsp llauddsp"
2587 apng_decoder_deps="zlib"
2588 apng_encoder_deps="zlib"
2589 apng_encoder_select="llvidencdsp"
2590 aptx_decoder_select="audio_frame_queue"
2591 aptx_encoder_select="audio_frame_queue"
2592 aptx_hd_decoder_select="audio_frame_queue"
2593 aptx_hd_encoder_select="audio_frame_queue"
2594 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2595 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2596 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2597 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2598 atrac1_decoder_select="mdct sinewin"
2599 atrac3_decoder_select="mdct"
2600 atrac3p_decoder_select="mdct sinewin"
2601 atrac9_decoder_select="mdct"
2602 avrn_decoder_select="exif jpegtables"
2603 bink_decoder_select="blockdsp hpeldsp"
2604 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2605 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2606 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2607 clearvideo_decoder_select="idctdsp"
2608 cllc_decoder_select="bswapdsp"
2609 comfortnoise_encoder_select="lpc"
2610 cook_decoder_select="audiodsp mdct sinewin"
2611 cscd_decoder_select="lzo"
2612 cscd_decoder_suggest="zlib"
2613 dca_decoder_select="mdct"
2614 dds_decoder_select="texturedsp"
2615 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2616 dnxhd_decoder_select="blockdsp idctdsp"
2617 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2618 dolby_e_decoder_select="mdct"
2619 dvvideo_decoder_select="dvprofile idctdsp"
2620 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2621 dxa_decoder_deps="zlib"
2622 dxv_decoder_select="lzf texturedsp"
2623 eac3_decoder_select="ac3_decoder"
2624 eac3_encoder_select="ac3_encoder"
2625 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2626 eatgq_decoder_select="aandcttables"
2627 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2628 exr_decoder_deps="zlib"
2629 ffv1_decoder_select="rangecoder"
2630 ffv1_encoder_select="rangecoder"
2631 ffvhuff_decoder_select="huffyuv_decoder"
2632 ffvhuff_encoder_select="huffyuv_encoder"
2633 fic_decoder_select="golomb"
2634 flac_decoder_select="flacdsp"
2635 flac_encoder_select="bswapdsp flacdsp lpc"
2636 flashsv2_decoder_deps="zlib"
2637 flashsv2_encoder_deps="zlib"
2638 flashsv_decoder_deps="zlib"
2639 flashsv_encoder_deps="zlib"
2640 flv_decoder_select="h263_decoder"
2641 flv_encoder_select="h263_encoder"
2642 fourxm_decoder_select="blockdsp bswapdsp"
2643 fraps_decoder_select="bswapdsp huffman"
2644 g2m_decoder_deps="zlib"
2645 g2m_decoder_select="blockdsp idctdsp jpegtables"
2646 g729_decoder_select="audiodsp"
2647 h261_decoder_select="mpegvideo"
2648 h261_encoder_select="mpegvideoenc"
2649 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2650 h263_encoder_select="h263dsp mpegvideoenc"
2651 h263i_decoder_select="h263_decoder"
2652 h263p_decoder_select="h263_decoder"
2653 h263p_encoder_select="h263_encoder"
2654 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2655 h264_decoder_suggest="error_resilience"
2656 hap_decoder_select="snappy texturedsp"
2657 hap_encoder_deps="libsnappy"
2658 hap_encoder_select="texturedspenc"
2659 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2660 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2661 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2662 iac_decoder_select="imc_decoder"
2663 imc_decoder_select="bswapdsp fft mdct sinewin"
2664 indeo3_decoder_select="hpeldsp"
2665 indeo4_decoder_select="ividsp"
2666 indeo5_decoder_select="ividsp"
2667 interplay_video_decoder_select="hpeldsp"
2668 jpegls_decoder_select="mjpeg_decoder"
2669 jv_decoder_select="blockdsp"
2670 lagarith_decoder_select="llviddsp"
2671 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2672 magicyuv_decoder_select="llviddsp"
2673 magicyuv_encoder_select="llvidencdsp"
2674 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2675 metasound_decoder_select="lsp mdct sinewin"
2676 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2677 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2678 mjpeg_encoder_select="jpegtables mpegvideoenc"
2679 mjpegb_decoder_select="mjpeg_decoder"
2680 mlp_decoder_select="mlp_parser"
2681 mlp_encoder_select="lpc"
2682 motionpixels_decoder_select="bswapdsp"
2683 mp1_decoder_select="mpegaudio"
2684 mp1float_decoder_select="mpegaudio"
2685 mp2_decoder_select="mpegaudio"
2686 mp2float_decoder_select="mpegaudio"
2687 mp3_decoder_select="mpegaudio"
2688 mp3adu_decoder_select="mpegaudio"
2689 mp3adufloat_decoder_select="mpegaudio"
2690 mp3float_decoder_select="mpegaudio"
2691 mp3on4_decoder_select="mpegaudio"
2692 mp3on4float_decoder_select="mpegaudio"
2693 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2694 mpc8_decoder_select="mpegaudiodsp"
2695 mpegvideo_decoder_select="mpegvideo"
2696 mpeg1video_decoder_select="mpegvideo"
2697 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2698 mpeg2video_decoder_select="mpegvideo"
2699 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2700 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2701 mpeg4_encoder_select="h263_encoder"
2702 msa1_decoder_select="mss34dsp"
2703 mscc_decoder_deps="zlib"
2704 msmpeg4v1_decoder_select="h263_decoder"
2705 msmpeg4v2_decoder_select="h263_decoder"
2706 msmpeg4v2_encoder_select="h263_encoder"
2707 msmpeg4v3_decoder_select="h263_decoder"
2708 msmpeg4v3_encoder_select="h263_encoder"
2709 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2710 mts2_decoder_select="mss34dsp"
2711 mwsc_decoder_deps="zlib"
2712 mxpeg_decoder_select="mjpeg_decoder"
2713 nellymoser_decoder_select="mdct sinewin"
2714 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2715 nuv_decoder_select="idctdsp lzo"
2716 on2avc_decoder_select="mdct"
2717 opus_decoder_deps="swresample"
2718 opus_decoder_select="mdct15"
2719 opus_encoder_select="audio_frame_queue mdct15"
2720 png_decoder_deps="zlib"
2721 png_encoder_deps="zlib"
2722 png_encoder_select="llvidencdsp"
2723 prores_decoder_select="blockdsp idctdsp"
2724 prores_encoder_select="fdctdsp"
2725 qcelp_decoder_select="lsp"
2726 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2727 ra_144_decoder_select="audiodsp"
2728 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2729 ralf_decoder_select="golomb"
2730 rasc_decoder_deps="zlib"
2731 rawvideo_decoder_select="bswapdsp"
2732 rscc_decoder_deps="zlib"
2733 rtjpeg_decoder_select="me_cmp"
2734 rv10_decoder_select="h263_decoder"
2735 rv10_encoder_select="h263_encoder"
2736 rv20_decoder_select="h263_decoder"
2737 rv20_encoder_select="h263_encoder"
2738 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2739 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2740 screenpresso_decoder_deps="zlib"
2741 shorten_decoder_select="bswapdsp"
2742 sipr_decoder_select="lsp"
2743 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2744 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2745 sonic_decoder_select="golomb rangecoder"
2746 sonic_encoder_select="golomb rangecoder"
2747 sonic_ls_encoder_select="golomb rangecoder"
2748 sp5x_decoder_select="mjpeg_decoder"
2749 speedhq_decoder_select="mpegvideo"
2750 srgc_decoder_deps="zlib"
2751 svq1_decoder_select="hpeldsp"
2752 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2753 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2754 svq3_decoder_suggest="zlib"
2755 tak_decoder_select="audiodsp"
2756 tdsc_decoder_deps="zlib"
2757 tdsc_decoder_select="mjpeg_decoder"
2758 theora_decoder_select="vp3_decoder"
2759 thp_decoder_select="mjpeg_decoder"
2760 tiff_decoder_suggest="zlib lzma"
2761 tiff_encoder_suggest="zlib"
2762 truehd_decoder_select="mlp_parser"
2763 truehd_encoder_select="lpc"
2764 truemotion2_decoder_select="bswapdsp"
2765 truespeech_decoder_select="bswapdsp"
2766 tscc_decoder_deps="zlib"
2767 twinvq_decoder_select="mdct lsp sinewin"
2768 txd_decoder_select="texturedsp"
2769 utvideo_decoder_select="bswapdsp llviddsp"
2770 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2771 vble_decoder_select="llviddsp"
2772 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2773 vc1image_decoder_select="vc1_decoder"
2774 vorbis_decoder_select="mdct"
2775 vorbis_encoder_select="audio_frame_queue mdct"
2776 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2777 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2778 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2779 vp6a_decoder_select="vp6_decoder"
2780 vp6f_decoder_select="vp6_decoder"
2781 vp7_decoder_select="h264pred videodsp vp8dsp"
2782 vp8_decoder_select="h264pred videodsp vp8dsp"
2783 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2784 wcmv_decoder_deps="zlib"
2785 webp_decoder_select="vp8_decoder exif"
2786 wmalossless_decoder_select="llauddsp"
2787 wmapro_decoder_select="mdct sinewin wma_freqs"
2788 wmav1_decoder_select="mdct sinewin wma_freqs"
2789 wmav1_encoder_select="mdct sinewin wma_freqs"
2790 wmav2_decoder_select="mdct sinewin wma_freqs"
2791 wmav2_encoder_select="mdct sinewin wma_freqs"
2792 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2793 wmv1_decoder_select="h263_decoder"
2794 wmv1_encoder_select="h263_encoder"
2795 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2796 wmv2_encoder_select="h263_encoder wmv2dsp"
2797 wmv3_decoder_select="vc1_decoder"
2798 wmv3image_decoder_select="wmv3_decoder"
2799 xma1_decoder_select="wmapro_decoder"
2800 xma2_decoder_select="wmapro_decoder"
2801 zerocodec_decoder_deps="zlib"
2802 zlib_decoder_deps="zlib"
2803 zlib_encoder_deps="zlib"
2804 zmbv_decoder_deps="zlib"
2805 zmbv_encoder_deps="zlib"
2806
2807 # hardware accelerators
2808 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2809 cuda_deps="ffnvcodec"
2810 cuvid_deps="ffnvcodec"
2811 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2812 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2813 ffnvcodec_deps_any="libdl LoadLibrary"
2814 nvdec_deps="ffnvcodec"
2815 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2816 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2817 xvmc_deps="X11_extensions_XvMClib_h"
2818
2819 h263_vaapi_hwaccel_deps="vaapi"
2820 h263_vaapi_hwaccel_select="h263_decoder"
2821 h263_videotoolbox_hwaccel_deps="videotoolbox"
2822 h263_videotoolbox_hwaccel_select="h263_decoder"
2823 h264_d3d11va_hwaccel_deps="d3d11va"
2824 h264_d3d11va_hwaccel_select="h264_decoder"
2825 h264_d3d11va2_hwaccel_deps="d3d11va"
2826 h264_d3d11va2_hwaccel_select="h264_decoder"
2827 h264_dxva2_hwaccel_deps="dxva2"
2828 h264_dxva2_hwaccel_select="h264_decoder"
2829 h264_nvdec_hwaccel_deps="nvdec"
2830 h264_nvdec_hwaccel_select="h264_decoder"
2831 h264_vaapi_hwaccel_deps="vaapi"
2832 h264_vaapi_hwaccel_select="h264_decoder"
2833 h264_vdpau_hwaccel_deps="vdpau"
2834 h264_vdpau_hwaccel_select="h264_decoder"
2835 h264_videotoolbox_hwaccel_deps="videotoolbox"
2836 h264_videotoolbox_hwaccel_select="h264_decoder"
2837 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2838 hevc_d3d11va_hwaccel_select="hevc_decoder"
2839 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2840 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2841 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2842 hevc_dxva2_hwaccel_select="hevc_decoder"
2843 hevc_nvdec_hwaccel_deps="nvdec"
2844 hevc_nvdec_hwaccel_select="hevc_decoder"
2845 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2846 hevc_vaapi_hwaccel_select="hevc_decoder"
2847 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2848 hevc_vdpau_hwaccel_select="hevc_decoder"
2849 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2850 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2851 mjpeg_nvdec_hwaccel_deps="nvdec"
2852 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2853 mjpeg_vaapi_hwaccel_deps="vaapi"
2854 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2855 mpeg_xvmc_hwaccel_deps="xvmc"
2856 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2857 mpeg1_nvdec_hwaccel_deps="nvdec"
2858 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2859 mpeg1_vdpau_hwaccel_deps="vdpau"
2860 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2861 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2862 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2863 mpeg1_xvmc_hwaccel_deps="xvmc"
2864 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2865 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2866 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2867 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2868 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2869 mpeg2_dxva2_hwaccel_deps="dxva2"
2870 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2871 mpeg2_nvdec_hwaccel_deps="nvdec"
2872 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2873 mpeg2_vaapi_hwaccel_deps="vaapi"
2874 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2875 mpeg2_vdpau_hwaccel_deps="vdpau"
2876 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2877 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2878 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2879 mpeg2_xvmc_hwaccel_deps="xvmc"
2880 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2881 mpeg4_nvdec_hwaccel_deps="nvdec"
2882 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2883 mpeg4_vaapi_hwaccel_deps="vaapi"
2884 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2885 mpeg4_vdpau_hwaccel_deps="vdpau"
2886 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2887 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2888 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2889 vc1_d3d11va_hwaccel_deps="d3d11va"
2890 vc1_d3d11va_hwaccel_select="vc1_decoder"
2891 vc1_d3d11va2_hwaccel_deps="d3d11va"
2892 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2893 vc1_dxva2_hwaccel_deps="dxva2"
2894 vc1_dxva2_hwaccel_select="vc1_decoder"
2895 vc1_nvdec_hwaccel_deps="nvdec"
2896 vc1_nvdec_hwaccel_select="vc1_decoder"
2897 vc1_vaapi_hwaccel_deps="vaapi"
2898 vc1_vaapi_hwaccel_select="vc1_decoder"
2899 vc1_vdpau_hwaccel_deps="vdpau"
2900 vc1_vdpau_hwaccel_select="vc1_decoder"
2901 vp8_nvdec_hwaccel_deps="nvdec"
2902 vp8_nvdec_hwaccel_select="vp8_decoder"
2903 vp8_vaapi_hwaccel_deps="vaapi"
2904 vp8_vaapi_hwaccel_select="vp8_decoder"
2905 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2906 vp9_d3d11va_hwaccel_select="vp9_decoder"
2907 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2908 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2909 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2910 vp9_dxva2_hwaccel_select="vp9_decoder"
2911 vp9_nvdec_hwaccel_deps="nvdec"
2912 vp9_nvdec_hwaccel_select="vp9_decoder"
2913 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2914 vp9_vaapi_hwaccel_select="vp9_decoder"
2915 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2916 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2917 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2918 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2919 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2920 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2921
2922 # hardware-accelerated codecs
2923 omx_deps="libdl pthreads"
2924 omx_rpi_select="omx"
2925 qsv_deps="libmfx"
2926 qsvdec_select="qsv"
2927 qsvenc_select="qsv"
2928 qsvvpp_select="qsv"
2929 vaapi_encode_deps="vaapi"
2930 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2931
2932 hwupload_cuda_filter_deps="ffnvcodec"
2933 scale_npp_filter_deps="ffnvcodec libnpp"
2934 scale_cuda_filter_deps="cuda_sdk"
2935 thumbnail_cuda_filter_deps="cuda_sdk"
2936 transpose_npp_filter_deps="ffnvcodec libnpp"
2937
2938 amf_deps_any="libdl LoadLibrary"
2939 nvenc_deps="ffnvcodec"
2940 nvenc_deps_any="libdl LoadLibrary"
2941 nvenc_encoder_deps="nvenc"
2942
2943 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2944 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2945 h264_amf_encoder_deps="amf"
2946 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2947 h264_cuvid_decoder_deps="cuvid"
2948 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2949 h264_mediacodec_decoder_deps="mediacodec"
2950 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2951 h264_mmal_decoder_deps="mmal"
2952 h264_nvenc_encoder_deps="nvenc"
2953 h264_omx_encoder_deps="omx"
2954 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2955 h264_qsv_encoder_select="qsvenc"
2956 h264_rkmpp_decoder_deps="rkmpp"
2957 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2958 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2959 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2960 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2961 hevc_amf_encoder_deps="amf"
2962 hevc_cuvid_decoder_deps="cuvid"
2963 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2964 hevc_mediacodec_decoder_deps="mediacodec"
2965 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2966 hevc_nvenc_encoder_deps="nvenc"
2967 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2968 hevc_qsv_encoder_select="hevcparse qsvenc"
2969 hevc_rkmpp_decoder_deps="rkmpp"
2970 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2971 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2972 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2973 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2974 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2975 mjpeg_cuvid_decoder_deps="cuvid"
2976 mjpeg_qsv_encoder_deps="libmfx"
2977 mjpeg_qsv_encoder_select="qsvenc"
2978 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2979 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
2980 mpeg1_cuvid_decoder_deps="cuvid"
2981 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2982 mpeg2_crystalhd_decoder_select="crystalhd"
2983 mpeg2_cuvid_decoder_deps="cuvid"
2984 mpeg2_mmal_decoder_deps="mmal"
2985 mpeg2_mediacodec_decoder_deps="mediacodec"
2986 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2987 mpeg2_qsv_encoder_select="qsvenc"
2988 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2989 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2990 mpeg4_crystalhd_decoder_select="crystalhd"
2991 mpeg4_cuvid_decoder_deps="cuvid"
2992 mpeg4_mediacodec_decoder_deps="mediacodec"
2993 mpeg4_mmal_decoder_deps="mmal"
2994 mpeg4_omx_encoder_deps="omx"
2995 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2996 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2997 msmpeg4_crystalhd_decoder_select="crystalhd"
2998 nvenc_h264_encoder_select="h264_nvenc_encoder"
2999 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3000 vc1_crystalhd_decoder_select="crystalhd"
3001 vc1_cuvid_decoder_deps="cuvid"
3002 vc1_mmal_decoder_deps="mmal"
3003 vc1_qsv_decoder_select="qsvdec vc1_parser"
3004 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3005 vp8_cuvid_decoder_deps="cuvid"
3006 vp8_mediacodec_decoder_deps="mediacodec"
3007 vp8_qsv_decoder_select="qsvdec vp8_parser"
3008 vp8_rkmpp_decoder_deps="rkmpp"
3009 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3010 vp8_vaapi_encoder_select="vaapi_encode"
3011 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3012 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3013 vp9_cuvid_decoder_deps="cuvid"
3014 vp9_mediacodec_decoder_deps="mediacodec"
3015 vp9_rkmpp_decoder_deps="rkmpp"
3016 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3017 vp9_vaapi_encoder_select="vaapi_encode"
3018 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3019 wmv3_crystalhd_decoder_select="crystalhd"
3020
3021 # parsers
3022 aac_parser_select="adts_header"
3023 h264_parser_select="golomb h264dsp h264parse"
3024 hevc_parser_select="hevcparse"
3025 mpegaudio_parser_select="mpegaudioheader"
3026 mpegvideo_parser_select="mpegvideo"
3027 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3028 vc1_parser_select="vc1dsp"
3029
3030 # bitstream_filters
3031 aac_adtstoasc_bsf_select="adts_header"
3032 eac3_core_bsf_select="ac3_parser"
3033 filter_units_bsf_select="cbs"
3034 h264_metadata_bsf_deps="const_nan"
3035 h264_metadata_bsf_select="cbs_h264"
3036 h264_redundant_pps_bsf_select="cbs_h264"
3037 hevc_metadata_bsf_select="cbs_h265"
3038 mjpeg2jpeg_bsf_select="jpegtables"
3039 mpeg2_metadata_bsf_select="cbs_mpeg2"
3040 trace_headers_bsf_select="cbs"
3041 vp9_metadata_bsf_select="cbs_vp9"
3042
3043 # external libraries
3044 aac_at_decoder_deps="audiotoolbox"
3045 aac_at_decoder_select="aac_adtstoasc_bsf"
3046 ac3_at_decoder_deps="audiotoolbox"
3047 ac3_at_decoder_select="ac3_parser"
3048 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3049 alac_at_decoder_deps="audiotoolbox"
3050 amr_nb_at_decoder_deps="audiotoolbox"
3051 avisynth_deps_any="libdl LoadLibrary"
3052 avisynth_demuxer_deps="avisynth"
3053 avisynth_demuxer_select="riffdec"
3054 eac3_at_decoder_deps="audiotoolbox"
3055 eac3_at_decoder_select="ac3_parser"
3056 gsm_ms_at_decoder_deps="audiotoolbox"
3057 ilbc_at_decoder_deps="audiotoolbox"
3058 mp1_at_decoder_deps="audiotoolbox"
3059 mp2_at_decoder_deps="audiotoolbox"
3060 mp3_at_decoder_deps="audiotoolbox"
3061 mp1_at_decoder_select="mpegaudioheader"
3062 mp2_at_decoder_select="mpegaudioheader"
3063 mp3_at_decoder_select="mpegaudioheader"
3064 pcm_alaw_at_decoder_deps="audiotoolbox"
3065 pcm_mulaw_at_decoder_deps="audiotoolbox"
3066 qdmc_at_decoder_deps="audiotoolbox"
3067 qdm2_at_decoder_deps="audiotoolbox"
3068 aac_at_encoder_deps="audiotoolbox"
3069 aac_at_encoder_select="audio_frame_queue"
3070 alac_at_encoder_deps="audiotoolbox"
3071 alac_at_encoder_select="audio_frame_queue"
3072 ilbc_at_encoder_deps="audiotoolbox"
3073 ilbc_at_encoder_select="audio_frame_queue"
3074 pcm_alaw_at_encoder_deps="audiotoolbox"
3075 pcm_alaw_at_encoder_select="audio_frame_queue"
3076 pcm_mulaw_at_encoder_deps="audiotoolbox"
3077 pcm_mulaw_at_encoder_select="audio_frame_queue"
3078 chromaprint_muxer_deps="chromaprint"
3079 h264_videotoolbox_encoder_deps="pthreads"
3080 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3081 hevc_videotoolbox_encoder_deps="pthreads"
3082 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3083 libaom_av1_decoder_deps="libaom"
3084 libaom_av1_encoder_deps="libaom"
3085 libaom_av1_encoder_select="extract_extradata_bsf"
3086 libcelt_decoder_deps="libcelt"
3087 libcodec2_decoder_deps="libcodec2"
3088 libcodec2_encoder_deps="libcodec2"
3089 libdavs2_decoder_deps="libdavs2"
3090 libfdk_aac_decoder_deps="libfdk_aac"
3091 libfdk_aac_encoder_deps="libfdk_aac"
3092 libfdk_aac_encoder_select="audio_frame_queue"
3093 libgme_demuxer_deps="libgme"
3094 libgsm_decoder_deps="libgsm"
3095 libgsm_encoder_deps="libgsm"
3096 libgsm_ms_decoder_deps="libgsm"
3097 libgsm_ms_encoder_deps="libgsm"
3098 libilbc_decoder_deps="libilbc"
3099 libilbc_encoder_deps="libilbc"
3100 libkvazaar_encoder_deps="libkvazaar"
3101 libmodplug_demuxer_deps="libmodplug"
3102 libmp3lame_encoder_deps="libmp3lame"
3103 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3104 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3105 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3106 libopencore_amrnb_encoder_select="audio_frame_queue"
3107 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3108 libopenh264_decoder_deps="libopenh264"
3109 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3110 libopenh264_encoder_deps="libopenh264"
3111 libopenjpeg_decoder_deps="libopenjpeg"
3112 libopenjpeg_encoder_deps="libopenjpeg"
3113 libopenmpt_demuxer_deps="libopenmpt"
3114 libopus_decoder_deps="libopus"
3115 libopus_encoder_deps="libopus"
3116 libopus_encoder_select="audio_frame_queue"
3117 librsvg_decoder_deps="librsvg"
3118 libshine_encoder_deps="libshine"
3119 libshine_encoder_select="audio_frame_queue"
3120 libspeex_decoder_deps="libspeex"
3121 libspeex_encoder_deps="libspeex"
3122 libspeex_encoder_select="audio_frame_queue"
3123 libtheora_encoder_deps="libtheora"
3124 libtwolame_encoder_deps="libtwolame"
3125 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3126 libvorbis_decoder_deps="libvorbis"
3127 libvorbis_encoder_deps="libvorbis libvorbisenc"
3128 libvorbis_encoder_select="audio_frame_queue"
3129 libvpx_vp8_decoder_deps="libvpx"
3130 libvpx_vp8_encoder_deps="libvpx"
3131 libvpx_vp9_decoder_deps="libvpx"
3132 libvpx_vp9_encoder_deps="libvpx"
3133 libwavpack_encoder_deps="libwavpack"
3134 libwavpack_encoder_select="audio_frame_queue"
3135 libwebp_encoder_deps="libwebp"
3136 libwebp_anim_encoder_deps="libwebp"
3137 libx262_encoder_deps="libx262"
3138 libx264_encoder_deps="libx264"
3139 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3140 libx264rgb_encoder_select="libx264_encoder"
3141 libx265_encoder_deps="libx265"
3142 libxavs_encoder_deps="libxavs"
3143 libxavs2_encoder_deps="libxavs2"
3144 libxvid_encoder_deps="libxvid"
3145 libzvbi_teletext_decoder_deps="libzvbi"
3146 vapoursynth_demuxer_deps="vapoursynth"
3147 videotoolbox_suggest="coreservices"
3148 videotoolbox_deps="corefoundation coremedia corevideo"
3149 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3150
3151 # demuxers / muxers
3152 ac3_demuxer_select="ac3_parser"
3153 aiff_muxer_select="iso_media"
3154 asf_demuxer_select="riffdec"
3155 asf_o_demuxer_select="riffdec"
3156 asf_muxer_select="riffenc"
3157 asf_stream_muxer_select="asf_muxer"
3158 avi_demuxer_select="iso_media riffdec exif"
3159 avi_muxer_select="riffenc"
3160 caf_demuxer_select="iso_media riffdec"
3161 caf_muxer_select="iso_media"
3162 dash_muxer_select="mp4_muxer"
3163 dash_demuxer_deps="libxml2"
3164 dirac_demuxer_select="dirac_parser"
3165 dts_demuxer_select="dca_parser"
3166 dtshd_demuxer_select="dca_parser"
3167 dv_demuxer_select="dvprofile"
3168 dv_muxer_select="dvprofile"
3169 dxa_demuxer_select="riffdec"
3170 eac3_demuxer_select="ac3_parser"
3171 f4v_muxer_select="mov_muxer"
3172 fifo_muxer_deps="threads"
3173 flac_demuxer_select="flac_parser"
3174 hds_muxer_select="flv_muxer"
3175 hls_muxer_select="mpegts_muxer"
3176 hls_muxer_suggest="gcrypt openssl"
3177 image2_alias_pix_demuxer_select="image2_demuxer"
3178 image2_brender_pix_demuxer_select="image2_demuxer"
3179 ipod_muxer_select="mov_muxer"
3180 ismv_muxer_select="mov_muxer"
3181 matroska_audio_muxer_select="matroska_muxer"
3182 matroska_demuxer_select="iso_media riffdec"
3183 matroska_demuxer_suggest="bzlib lzo zlib"
3184 matroska_muxer_select="iso_media riffenc"
3185 mmf_muxer_select="riffenc"
3186 mov_demuxer_select="iso_media riffdec"
3187 mov_demuxer_suggest="zlib"
3188 mov_muxer_select="iso_media riffenc rtpenc_chain"
3189 mp3_demuxer_select="mpegaudio_parser"
3190 mp3_muxer_select="mpegaudioheader"
3191 mp4_muxer_select="mov_muxer"
3192 mpegts_demuxer_select="iso_media"
3193 mpegts_muxer_select="adts_muxer latm_muxer"
3194 mpegtsraw_demuxer_select="mpegts_demuxer"
3195 mxf_d10_muxer_select="mxf_muxer"
3196 mxf_opatom_muxer_select="mxf_muxer"
3197 nut_muxer_select="riffenc"
3198 nuv_demuxer_select="riffdec"
3199 oga_muxer_select="ogg_muxer"
3200 ogg_demuxer_select="dirac_parse"
3201 ogv_muxer_select="ogg_muxer"
3202 opus_muxer_select="ogg_muxer"
3203 psp_muxer_select="mov_muxer"
3204 rtp_demuxer_select="sdp_demuxer"
3205 rtp_muxer_select="golomb"
3206 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3207 rtsp_demuxer_select="http_protocol rtpdec"
3208 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3209 sap_demuxer_select="sdp_demuxer"
3210 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3211 sdp_demuxer_select="rtpdec"
3212 smoothstreaming_muxer_select="ismv_muxer"
3213 spdif_demuxer_select="adts_header"
3214 spdif_muxer_select="adts_header"
3215 spx_muxer_select="ogg_muxer"
3216 swf_demuxer_suggest="zlib"
3217 tak_demuxer_select="tak_parser"
3218 tg2_muxer_select="mov_muxer"
3219 tgp_muxer_select="mov_muxer"
3220 vobsub_demuxer_select="mpegps_demuxer"
3221 w64_demuxer_select="wav_demuxer"
3222 w64_muxer_select="wav_muxer"
3223 wav_demuxer_select="riffdec"
3224 wav_muxer_select="riffenc"
3225 webm_muxer_select="iso_media riffenc"
3226 webm_dash_manifest_demuxer_select="matroska_demuxer"
3227 wtv_demuxer_select="mpegts_demuxer riffdec"
3228 wtv_muxer_select="mpegts_muxer riffenc"
3229 xmv_demuxer_select="riffdec"
3230 xwma_demuxer_select="riffdec"
3231
3232 # indevs / outdevs
3233 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3234 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3235 alsa_indev_deps="alsa"
3236 alsa_outdev_deps="alsa"
3237 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3238 avfoundation_indev_suggest="coregraphics applicationservices"
3239 avfoundation_indev_extralibs="-framework Foundation"
3240 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3241 caca_outdev_deps="libcaca"
3242 decklink_deps_any="libdl LoadLibrary"
3243 decklink_indev_deps="decklink threads"
3244 decklink_indev_extralibs="-lstdc++"
3245 decklink_outdev_deps="decklink threads"
3246 decklink_outdev_suggest="libklvanc"
3247 decklink_outdev_extralibs="-lstdc++"
3248 libndi_newtek_indev_deps="libndi_newtek"
3249 libndi_newtek_indev_extralibs="-lndi"
3250 libndi_newtek_outdev_deps="libndi_newtek"
3251 libndi_newtek_outdev_extralibs="-lndi"
3252 dshow_indev_deps="IBaseFilter"
3253 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3254 fbdev_indev_deps="linux_fb_h"
3255 fbdev_outdev_deps="linux_fb_h"
3256 gdigrab_indev_deps="CreateDIBSection"
3257 gdigrab_indev_extralibs="-lgdi32"
3258 gdigrab_indev_select="bmp_decoder"
3259 iec61883_indev_deps="libiec61883"
3260 jack_indev_deps="libjack"
3261 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3262 kmsgrab_indev_deps="libdrm"
3263 lavfi_indev_deps="avfilter"
3264 libcdio_indev_deps="libcdio"
3265 libdc1394_indev_deps="libdc1394"
3266 openal_indev_deps="openal"
3267 opengl_outdev_deps="opengl"
3268 oss_indev_deps_any="sys_soundcard_h"
3269 oss_outdev_deps_any="sys_soundcard_h"
3270 pulse_indev_deps="libpulse"
3271 pulse_outdev_deps="libpulse"
3272 sdl2_outdev_deps="sdl2"
3273 sndio_indev_deps="sndio"
3274 sndio_outdev_deps="sndio"
3275 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3276 v4l2_indev_suggest="libv4l2"
3277 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3278 v4l2_outdev_suggest="libv4l2"
3279 vfwcap_indev_deps="vfw32 vfwcap_defines"
3280 xcbgrab_indev_deps="libxcb"
3281 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3282 xv_outdev_deps="xlib"
3283
3284 # protocols
3285 async_protocol_deps="threads"
3286 bluray_protocol_deps="libbluray"
3287 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3288 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3289 ffrtmpcrypt_protocol_select="tcp_protocol"
3290 ffrtmphttp_protocol_conflict="librtmp_protocol"
3291 ffrtmphttp_protocol_select="http_protocol"
3292 ftp_protocol_select="tcp_protocol"
3293 gopher_protocol_select="network"
3294 http_protocol_select="tcp_protocol"
3295 http_protocol_suggest="zlib"
3296 httpproxy_protocol_select="tcp_protocol"
3297 httpproxy_protocol_suggest="zlib"
3298 https_protocol_select="tls_protocol"
3299 https_protocol_suggest="zlib"
3300 icecast_protocol_select="http_protocol"
3301 mmsh_protocol_select="http_protocol"
3302 mmst_protocol_select="network"
3303 rtmp_protocol_conflict="librtmp_protocol"
3304 rtmp_protocol_select="tcp_protocol"
3305 rtmp_protocol_suggest="zlib"
3306 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3307 rtmpe_protocol_suggest="zlib"
3308 rtmps_protocol_conflict="librtmp_protocol"
3309 rtmps_protocol_select="tls_protocol"
3310 rtmps_protocol_suggest="zlib"
3311 rtmpt_protocol_select="ffrtmphttp_protocol"
3312 rtmpt_protocol_suggest="zlib"
3313 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3314 rtmpte_protocol_suggest="zlib"
3315 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3316 rtmpts_protocol_suggest="zlib"
3317 rtp_protocol_select="udp_protocol"
3318 schannel_conflict="openssl gnutls libtls mbedtls"
3319 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3320 sctp_protocol_select="network"
3321 securetransport_conflict="openssl gnutls libtls mbedtls"
3322 srtp_protocol_select="rtp_protocol srtp"
3323 tcp_protocol_select="network"
3324 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3325 tls_protocol_select="tcp_protocol"
3326 udp_protocol_select="network"
3327 udplite_protocol_select="network"
3328 unix_protocol_deps="sys_un_h"
3329 unix_protocol_select="network"
3330
3331 # external library protocols
3332 librtmp_protocol_deps="librtmp"
3333 librtmpe_protocol_deps="librtmp"
3334 librtmps_protocol_deps="librtmp"
3335 librtmpt_protocol_deps="librtmp"
3336 librtmpte_protocol_deps="librtmp"
3337 libsmbclient_protocol_deps="libsmbclient gplv3"
3338 libsrt_protocol_deps="libsrt"
3339 libsrt_protocol_select="network"
3340 libssh_protocol_deps="libssh"
3341 libtls_conflict="openssl gnutls mbedtls"
3342
3343 # filters
3344 afftdn_filter_deps="avcodec"
3345 afftdn_filter_select="fft"
3346 afftfilt_filter_deps="avcodec"
3347 afftfilt_filter_select="fft"
3348 afir_filter_deps="avcodec"
3349 afir_filter_select="fft"
3350 amovie_filter_deps="avcodec avformat"
3351 aresample_filter_deps="swresample"
3352 ass_filter_deps="libass"
3353 atempo_filter_deps="avcodec"
3354 atempo_filter_select="rdft"
3355 avgblur_opencl_filter_deps="opencl"
3356 azmq_filter_deps="libzmq"
3357 blackframe_filter_deps="gpl"
3358 bm3d_filter_deps="avcodec"
3359 bm3d_filter_select="dct"
3360 boxblur_filter_deps="gpl"
3361 boxblur_opencl_filter_deps="opencl gpl"
3362 bs2b_filter_deps="libbs2b"
3363 colormatrix_filter_deps="gpl"
3364 convolution_opencl_filter_deps="opencl"
3365 convolve_filter_deps="avcodec"
3366 convolve_filter_select="fft"
3367 coreimage_filter_deps="coreimage appkit"
3368 coreimage_filter_extralibs="-framework OpenGL"
3369 coreimagesrc_filter_deps="coreimage appkit"
3370 coreimagesrc_filter_extralibs="-framework OpenGL"
3371 cover_rect_filter_deps="avcodec avformat gpl"
3372 cropdetect_filter_deps="gpl"
3373 deconvolve_filter_deps="avcodec"
3374 deconvolve_filter_select="fft"
3375 deinterlace_qsv_filter_deps="libmfx"
3376 deinterlace_vaapi_filter_deps="vaapi"
3377 delogo_filter_deps="gpl"
3378 denoise_vaapi_filter_deps="vaapi"
3379 deshake_filter_select="pixelutils"
3380 dilation_opencl_filter_deps="opencl"
3381 drawtext_filter_deps="libfreetype"
3382 drawtext_filter_suggest="libfontconfig libfribidi"
3383 elbg_filter_deps="avcodec"
3384 eq_filter_deps="gpl"
3385 erosion_opencl_filter_deps="opencl"
3386 fftfilt_filter_deps="avcodec"
3387 fftfilt_filter_select="rdft"
3388 fftdnoiz_filter_deps="avcodec"
3389 fftdnoiz_filter_select="fft"
3390 find_rect_filter_deps="avcodec avformat gpl"
3391 firequalizer_filter_deps="avcodec"
3392 firequalizer_filter_select="rdft"
3393 flite_filter_deps="libflite"
3394 framerate_filter_select="pixelutils"
3395 frei0r_filter_deps="frei0r libdl"
3396 frei0r_src_filter_deps="frei0r libdl"
3397 fspp_filter_deps="gpl"
3398 geq_filter_deps="gpl"
3399 histeq_filter_deps="gpl"
3400 hqdn3d_filter_deps="gpl"
3401 interlace_filter_deps="gpl"
3402 kerndeint_filter_deps="gpl"
3403 ladspa_filter_deps="ladspa libdl"
3404 lensfun_filter_deps="liblensfun version3"
3405 lv2_filter_deps="lv2"
3406 mcdeint_filter_deps="avcodec gpl"
3407 movie_filter_deps="avcodec avformat"
3408 mpdecimate_filter_deps="gpl"
3409 mpdecimate_filter_select="pixelutils"
3410 mptestsrc_filter_deps="gpl"
3411 negate_filter_deps="lut_filter"
3412 nnedi_filter_deps="gpl"
3413 ocr_filter_deps="libtesseract"
3414 ocv_filter_deps="libopencv"
3415 openclsrc_filter_deps="opencl"
3416 overlay_opencl_filter_deps="opencl"
3417 overlay_qsv_filter_deps="libmfx"
3418 overlay_qsv_filter_select="qsvvpp"
3419 owdenoise_filter_deps="gpl"
3420 pan_filter_deps="swresample"
3421 perspective_filter_deps="gpl"
3422 phase_filter_deps="gpl"
3423 pp7_filter_deps="gpl"
3424 pp_filter_deps="gpl postproc"
3425 prewitt_opencl_filter_deps="opencl"
3426 procamp_vaapi_filter_deps="vaapi"
3427 program_opencl_filter_deps="opencl"
3428 pullup_filter_deps="gpl"
3429 removelogo_filter_deps="avcodec avformat swscale"
3430 repeatfields_filter_deps="gpl"
3431 resample_filter_deps="avresample"
3432 roberts_opencl_filter_deps="opencl"
3433 rubberband_filter_deps="librubberband"
3434 sab_filter_deps="gpl swscale"
3435 scale2ref_filter_deps="swscale"
3436 scale_filter_deps="swscale"
3437 scale_qsv_filter_deps="libmfx"
3438 select_filter_select="pixelutils"
3439 sharpness_vaapi_filter_deps="vaapi"
3440 showcqt_filter_deps="avcodec avformat swscale"
3441 showcqt_filter_suggest="libfontconfig libfreetype"
3442 showcqt_filter_select="fft"
3443 showfreqs_filter_deps="avcodec"
3444 showfreqs_filter_select="fft"
3445 showspectrum_filter_deps="avcodec"
3446 showspectrum_filter_select="fft"
3447 showspectrumpic_filter_deps="avcodec"
3448 showspectrumpic_filter_select="fft"
3449 signature_filter_deps="gpl avcodec avformat"
3450 smartblur_filter_deps="gpl swscale"
3451 sobel_opencl_filter_deps="opencl"
3452 sofalizer_filter_deps="libmysofa avcodec"
3453 sofalizer_filter_select="fft"
3454 spectrumsynth_filter_deps="avcodec"
3455 spectrumsynth_filter_select="fft"
3456 spp_filter_deps="gpl avcodec"
3457 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3458 sr_filter_deps="avformat swscale"
3459 sr_filter_select="dnn"
3460 stereo3d_filter_deps="gpl"
3461 subtitles_filter_deps="avformat avcodec libass"
3462 super2xsai_filter_deps="gpl"
3463 pixfmts_super2xsai_test_deps="super2xsai_filter"
3464 tinterlace_filter_deps="gpl"
3465 tinterlace_merge_test_deps="tinterlace_filter"
3466 tinterlace_pad_test_deps="tinterlace_filter"
3467 tonemap_filter_deps="const_nan"
3468 tonemap_opencl_filter_deps="opencl const_nan"
3469 unsharp_opencl_filter_deps="opencl"
3470 uspp_filter_deps="gpl avcodec"
3471 vaguedenoiser_filter_deps="gpl"
3472 vidstabdetect_filter_deps="libvidstab"
3473 vidstabtransform_filter_deps="libvidstab"
3474 libvmaf_filter_deps="libvmaf pthreads"
3475 zmq_filter_deps="libzmq"
3476 zoompan_filter_deps="swscale"
3477 zscale_filter_deps="libzimg const_nan"
3478 scale_vaapi_filter_deps="vaapi"
3479 vpp_qsv_filter_deps="libmfx"
3480 vpp_qsv_filter_select="qsvvpp"
3481
3482 # examples
3483 avio_dir_cmd_deps="avformat avutil"
3484 avio_reading_deps="avformat avcodec avutil"
3485 decode_audio_example_deps="avcodec avutil"
3486 decode_video_example_deps="avcodec avutil"
3487 demuxing_decoding_example_deps="avcodec avformat avutil"
3488 encode_audio_example_deps="avcodec avutil"
3489 encode_video_example_deps="avcodec avutil"
3490 extract_mvs_example_deps="avcodec avformat avutil"
3491 filter_audio_example_deps="avfilter avutil"
3492 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3493 filtering_video_example_deps="avfilter avcodec avformat avutil"
3494 http_multiclient_example_deps="avformat avutil fork"
3495 hw_decode_example_deps="avcodec avformat avutil"
3496 metadata_example_deps="avformat avutil"
3497 muxing_example_deps="avcodec avformat avutil swscale"
3498 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3499 remuxing_example_deps="avcodec avformat avutil"
3500 resampling_audio_example_deps="avutil swresample"
3501 scaling_video_example_deps="avutil swscale"
3502 transcode_aac_example_deps="avcodec avformat swresample"
3503 transcoding_example_deps="avfilter avcodec avformat avutil"
3504 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3505 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3506
3507 # EXTRALIBS_LIST
3508 cpu_init_extralibs="pthreads_extralibs"
3509 cws2fws_extralibs="zlib_extralibs"
3510
3511 # libraries, in any order
3512 avcodec_deps="avutil"
3513 avcodec_suggest="libm"
3514 avcodec_select="null_bsf"
3515 avdevice_deps="avformat avcodec avutil"
3516 avdevice_suggest="libm"
3517 avfilter_deps="avutil"
3518 avfilter_suggest="libm"
3519 avformat_deps="avcodec avutil"
3520 avformat_suggest="libm network zlib"
3521 avresample_deps="avutil"
3522 avresample_suggest="libm"
3523 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3524 postproc_deps="avutil gpl"
3525 postproc_suggest="libm"
3526 swresample_deps="avutil"
3527 swresample_suggest="libm libsoxr"
3528 swscale_deps="avutil"
3529 swscale_suggest="libm"
3530
3531 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3532 avfilter_extralibs="pthreads_extralibs"
3533 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3534
3535 # programs
3536 ffmpeg_deps="avcodec avfilter avformat"
3537 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3538                null_filter
3539                trim_filter"
3540 ffmpeg_suggest="ole32 psapi shell32"
3541 ffplay_deps="avcodec avformat swscale swresample sdl2"
3542 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3543 ffplay_suggest="shell32"
3544 ffprobe_deps="avcodec avformat"
3545 ffprobe_suggest="shell32"
3546
3547 # documentation
3548 podpages_deps="perl"
3549 manpages_deps="perl pod2man"
3550 htmlpages_deps="perl"
3551 htmlpages_deps_any="makeinfo_html texi2html"
3552 txtpages_deps="perl makeinfo"
3553 doc_deps_any="manpages htmlpages podpages txtpages"
3554
3555 # default parameters
3556
3557 logfile="ffbuild/config.log"
3558
3559 # installation paths
3560 prefix_default="/usr/local"
3561 bindir_default='${prefix}/bin'
3562 datadir_default='${prefix}/share/ffmpeg'
3563 docdir_default='${prefix}/share/doc/ffmpeg'
3564 incdir_default='${prefix}/include'
3565 libdir_default='${prefix}/lib'
3566 mandir_default='${prefix}/share/man'
3567
3568 # toolchain
3569 ar_default="ar"
3570 cc_default="gcc"
3571 cxx_default="g++"
3572 host_cc_default="gcc"
3573 doxygen_default="doxygen"
3574 install="install"
3575 ln_s_default="ln -s -f"
3576 nm_default="nm -g"
3577 pkg_config_default=pkg-config
3578 ranlib_default="ranlib"
3579 strip_default="strip"
3580 version_script='--version-script'
3581 objformat="elf32"
3582 x86asmexe_default="nasm"
3583 windres_default="windres"
3584 nvcc_default="nvcc"
3585 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3586 striptype="direct"
3587
3588 # OS
3589 target_os_default=$(tolower $(uname -s))
3590 host_os=$target_os_default
3591
3592 # machine
3593 if test "$target_os_default" = aix; then
3594     arch_default=$(uname -p)
3595     strip_default="strip -X32_64"
3596 else
3597     arch_default=$(uname -m)
3598 fi
3599 cpu="generic"
3600 intrinsics="none"
3601
3602 # configurable options
3603 enable $PROGRAM_LIST
3604 enable $DOCUMENT_LIST
3605 enable $EXAMPLE_LIST
3606 enable $(filter_out avresample $LIBRARY_LIST)
3607 enable stripping
3608
3609 enable asm
3610 enable debug
3611 enable doc
3612 enable faan faandct faanidct
3613 enable optimizations
3614 enable runtime_cpudetect
3615 enable safe_bitstream_reader
3616 enable static
3617 enable swscale_alpha
3618 enable valgrind_backtrace
3619
3620 sws_max_filter_size_default=256
3621 set_default sws_max_filter_size
3622
3623 # internal components are enabled by default
3624 enable $EXTRALIBS_LIST
3625
3626 # Avoid external, non-system, libraries getting enabled by dependency resolution
3627 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3628
3629 # build settings
3630 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3631 LIBPREF="lib"
3632 LIBSUF=".a"
3633 FULLNAME='$(NAME)$(BUILDSUF)'
3634 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3635 SLIBPREF="lib"
3636 SLIBSUF=".so"
3637 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3638 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3639 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3640 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3641 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3642 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3643 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3644
3645 asflags_filter=echo
3646 cflags_filter=echo
3647 ldflags_filter=echo
3648
3649 AS_C='-c'
3650 AS_O='-o $@'
3651 CC_C='-c'
3652 CC_E='-E -o $@'
3653 CC_O='-o $@'
3654 CXX_C='-c'
3655 CXX_O='-o $@'
3656 OBJCC_C='-c'
3657 OBJCC_E='-E -o $@'
3658 OBJCC_O='-o $@'
3659 X86ASM_O='-o $@'
3660 LD_O='-o $@'
3661 LD_LIB='-l%'
3662 LD_PATH='-L'
3663 HOSTCC_C='-c'
3664 HOSTCC_E='-E -o $@'
3665 HOSTCC_O='-o $@'
3666 HOSTLD_O='-o $@'
3667 NVCC_C='-c'
3668 NVCC_O='-o $@'
3669
3670 host_extralibs='-lm'
3671 host_cflags_filter=echo
3672 host_ldflags_filter=echo
3673
3674 target_path='$(CURDIR)'
3675
3676 # since the object filename is not given with the -MM flag, the compiler
3677 # is only able to print the basename, and we must add the path ourselves
3678 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3679 DEPFLAGS='-MM'
3680
3681 mkdir -p ffbuild
3682
3683 # find source path
3684 if test -f configure; then
3685     source_path=.
3686 else
3687     source_path=$(cd $(dirname "$0"); pwd)
3688     case "$source_path" in
3689         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3690     esac
3691     test -e "$source_path/config.h" &&
3692         die "Out of tree builds are impossible with config.h in source dir."
3693 fi
3694
3695 for v in "$@"; do
3696     r=${v#*=}
3697     l=${v%"$r"}
3698     r=$(sh_quote "$r")
3699     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3700 done
3701
3702 find_things_extern(){
3703     thing=$1
3704     pattern=$2
3705     file=$source_path/$3
3706     out=${4:-$thing}
3707     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3708 }
3709
3710 find_filters_extern(){
3711     file=$source_path/$1
3712     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file
3713     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file
3714 }
3715
3716 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3717 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3718 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3719 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3720 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3721 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3722 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3723 CODEC_LIST="
3724     $ENCODER_LIST
3725     $DECODER_LIST
3726 "
3727 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3728 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3729 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3730 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3731
3732 AVCODEC_COMPONENTS_LIST="
3733     $BSF_LIST
3734     $DECODER_LIST
3735     $ENCODER_LIST
3736     $HWACCEL_LIST
3737     $PARSER_LIST
3738 "
3739
3740 AVDEVICE_COMPONENTS_LIST="
3741     $INDEV_LIST
3742     $OUTDEV_LIST
3743 "
3744
3745 AVFILTER_COMPONENTS_LIST="
3746     $FILTER_LIST
3747 "
3748
3749 AVFORMAT_COMPONENTS_LIST="
3750     $DEMUXER_LIST
3751     $MUXER_LIST
3752     $PROTOCOL_LIST
3753 "
3754
3755 ALL_COMPONENTS="
3756     $AVCODEC_COMPONENTS_LIST
3757     $AVDEVICE_COMPONENTS_LIST
3758     $AVFILTER_COMPONENTS_LIST
3759     $AVFORMAT_COMPONENTS_LIST
3760 "
3761
3762 for n in $COMPONENT_LIST; do
3763     v=$(toupper ${n%s})_LIST
3764     eval enable \$$v
3765     eval ${n}_if_any="\$$v"
3766 done
3767
3768 enable $ARCH_EXT_LIST
3769
3770 die_unknown(){
3771     echo "Unknown option \"$1\"."
3772     echo "See $0 --help for available options."
3773     exit 1
3774 }
3775
3776 print_in_columns() {
3777     cols=$(expr $ncols / 24)
3778     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3779 }
3780
3781 show_list() {
3782     suffix=_$1
3783     shift
3784     echo $* | sed s/$suffix//g | print_in_columns
3785     exit 0
3786 }
3787
3788 rand_list(){
3789     IFS=', '
3790     set -- $*
3791     unset IFS
3792     for thing; do
3793         comp=${thing%:*}
3794         prob=${thing#$comp}
3795         prob=${prob#:}
3796         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3797         echo "prob ${prob:-0.5}"
3798         printf '%s\n' $comp
3799     done
3800 }
3801
3802 do_random(){
3803     action=$1
3804     shift
3805     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3806     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3807 }
3808
3809 for opt do
3810     optval="${opt#*=}"
3811     case "$opt" in
3812         --extra-ldflags=*)
3813             add_ldflags $optval
3814         ;;
3815         --extra-ldexeflags=*)
3816             add_ldexeflags $optval
3817         ;;
3818         --extra-ldsoflags=*)
3819             add_ldsoflags $optval
3820         ;;
3821         --extra-ldlibflags=*)
3822             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3823                  "removed in the future. Use --extra-ldsoflags instead."
3824             add_ldsoflags $optval
3825         ;;
3826         --extra-libs=*)
3827             add_extralibs $optval
3828         ;;
3829         --disable-devices)
3830             disable $INDEV_LIST $OUTDEV_LIST
3831         ;;
3832         --enable-debug=*)
3833             debuglevel="$optval"
3834         ;;
3835         --disable-programs)
3836             disable $PROGRAM_LIST
3837         ;;
3838         --disable-everything)
3839             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3840         ;;
3841         --disable-all)
3842             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3843             disable $LIBRARY_LIST $PROGRAM_LIST doc
3844             enable avutil
3845         ;;
3846         --enable-random|--disable-random)
3847             action=${opt%%-random}
3848             do_random ${action#--} $COMPONENT_LIST
3849         ;;
3850         --enable-random=*|--disable-random=*)
3851             action=${opt%%-random=*}
3852             do_random ${action#--} $optval
3853         ;;
3854         --enable-sdl)
3855             enable sdl2
3856         ;;
3857         --enable-*=*|--disable-*=*)
3858             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3859             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3860             eval list=\$$(toupper $thing)_LIST
3861             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3862             list=$(filter "$name" $list)
3863             [ "$list" = "" ] && warn "Option $opt did not match anything"
3864             $action $list
3865         ;;
3866         --enable-yasm|--disable-yasm)
3867             warn "The ${opt} option is only provided for compatibility and will be\n"\
3868                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3869             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3870         ;;
3871         --yasmexe=*)
3872             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3873                  "removed in the future. Use --x86asmexe instead."
3874             x86asmexe="$optval"
3875         ;;
3876         --enable-?*|--disable-?*)
3877             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3878             if is_in $option $COMPONENT_LIST; then
3879                 test $action = disable && action=unset
3880                 eval $action \$$(toupper ${option%s})_LIST
3881             elif is_in $option $CMDLINE_SELECT; then
3882                 $action $option
3883             else
3884                 die_unknown $opt
3885             fi
3886         ;;
3887         --list-*)
3888             NAME="${opt#--list-}"
3889             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3890             NAME=${NAME%s}
3891             eval show_list $NAME \$$(toupper $NAME)_LIST
3892         ;;
3893         --help|-h) show_help
3894         ;;
3895         --quiet|-q) quiet=yes
3896         ;;
3897         --fatal-warnings) enable fatal_warnings
3898         ;;
3899         --libfuzzer=*)
3900             libfuzzer_path="$optval"
3901         ;;
3902         *)
3903             optname="${opt%%=*}"
3904             optname="${optname#--}"
3905             optname=$(echo "$optname" | sed 's/-/_/g')
3906             if is_in $optname $CMDLINE_SET; then
3907                 eval $optname='$optval'
3908             elif is_in $optname $CMDLINE_APPEND; then
3909                 append $optname "$optval"
3910             else
3911                 die_unknown $opt
3912             fi
3913         ;;
3914     esac
3915 done
3916
3917 for e in $env; do
3918     eval "export $e"
3919 done
3920
3921 if disabled autodetect; then
3922
3923     # Unless iconv is explicitely disabled by the user, we still want to probe
3924     # for the iconv from the libc.
3925     disabled iconv || enable libc_iconv
3926
3927     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3928     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3929 fi
3930 # Mark specifically enabled, but normally autodetected libraries as requested.
3931 for lib in $AUTODETECT_LIBS; do
3932     enabled $lib && request $lib
3933 done
3934 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3935 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3936 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3937
3938 disabled logging && logfile=/dev/null
3939
3940 # command line configuration sanity checks
3941
3942 # we need to build at least one lib type
3943 if ! enabled_any static shared; then
3944     cat <<EOF
3945 At least one library type must be built.
3946 Specify --enable-static to build the static libraries or --enable-shared to
3947 build the shared libraries as well. To only build the shared libraries specify
3948 --disable-static in addition to --enable-shared.
3949 EOF
3950     exit 1
3951 fi
3952
3953 die_license_disabled() {
3954     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3955 }
3956
3957 die_license_disabled_gpl() {
3958     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3959 }
3960
3961 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3962 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3963
3964 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3965 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3966
3967 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3968
3969 if enabled nonfree; then
3970     license="nonfree and unredistributable"
3971 elif enabled gplv3; then
3972     license="GPL version 3 or later"
3973 elif enabled lgplv3; then
3974     license="LGPL version 3 or later"
3975 elif enabled gpl; then
3976     license="GPL version 2 or later"
3977 else
3978     license="LGPL version 2.1 or later"
3979 fi
3980
3981 enabled_all gnutls openssl &&
3982     die "GnuTLS and OpenSSL must not be enabled at the same time."
3983
3984 enabled_all gnutls mbedtls &&
3985     die "GnuTLS and mbedTLS must not be enabled at the same time."
3986
3987 enabled_all openssl mbedtls &&
3988     die "OpenSSL and mbedTLS must not be enabled at the same time."
3989
3990 # Disable all the library-specific components if the library itself
3991 # is disabled, see AVCODEC_LIST and following _LIST variables.
3992
3993 disable_components(){
3994     disabled ${1} && disable $(
3995         eval components="\$$(toupper ${1})_COMPONENTS"
3996         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3997     )
3998 }
3999
4000 map 'disable_components $v' $LIBRARY_LIST
4001
4002 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4003 set >> $logfile
4004
4005 test -n "$valgrind" && toolchain="valgrind-memcheck"
4006
4007 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4008     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4009     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4010 }
4011
4012 case "$toolchain" in
4013     *-asan)
4014         cc_default="${toolchain%-asan}"
4015         add_cflags  -fsanitize=address
4016         add_ldflags -fsanitize=address
4017     ;;
4018     *-msan)
4019         cc_default="${toolchain%-msan}"
4020         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4021         add_ldflags -fsanitize=memory
4022     ;;
4023     *-tsan)
4024         cc_default="${toolchain%-tsan}"
4025         add_cflags  -fsanitize=thread
4026         add_ldflags -fsanitize=thread
4027         case "$toolchain" in
4028             gcc-tsan)
4029                 add_cflags  -fPIC
4030                 add_ldflags -fPIC
4031                 ;;
4032         esac
4033     ;;
4034     *-usan)
4035         cc_default="${toolchain%-usan}"
4036         add_cflags  -fsanitize=undefined
4037         add_ldflags -fsanitize=undefined
4038     ;;
4039     valgrind-*)
4040         target_exec_default="valgrind"
4041         case "$toolchain" in
4042             valgrind-massif)
4043                 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"
4044                 ;;
4045             valgrind-memcheck)
4046                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4047                 ;;
4048         esac
4049     ;;
4050     msvc)
4051         # Check whether the current MSVC version needs the C99 converter.
4052         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4053         # support enough of C99 to build ffmpeg. Default to the new
4054         # behaviour if the regexp was unable to match anything, since this
4055         # successfully parses the version number of existing supported
4056         # versions that require the converter (MSVC 2010 and 2012).
4057         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4058         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4059             cc_default="cl"
4060             cxx_default="cl"
4061         else
4062             die "Unsupported MSVC version (2013 or newer required)"
4063         fi
4064         ld_default="$source_path/compat/windows/mslink"
4065         nm_default="dumpbin -symbols"
4066         ar_default="lib"
4067         case "$arch" in
4068         aarch64|arm64)
4069             as_default="armasm64"
4070             ;;
4071         arm*)
4072             as_default="armasm"
4073             ;;
4074         esac
4075         target_os_default="win32"
4076         # Use a relative path for TMPDIR. This makes sure all the
4077         # ffconf temp files are written with a relative path, avoiding
4078         # issues with msys/win32 path conversion for MSVC parameters
4079         # such as -Fo<file> or -out:<file>.
4080         TMPDIR=.
4081     ;;
4082     icl)
4083         cc_default="icl"
4084         ld_default="xilink"
4085         nm_default="dumpbin -symbols"
4086         ar_default="xilib"
4087         target_os_default="win32"
4088         TMPDIR=.
4089     ;;
4090     gcov)
4091         add_cflags  -fprofile-arcs -ftest-coverage
4092         add_ldflags -fprofile-arcs -ftest-coverage
4093     ;;
4094     llvm-cov)
4095         add_cflags -fprofile-arcs -ftest-coverage
4096         add_ldflags --coverage
4097     ;;
4098     hardened)
4099         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4100         add_cflags   -fno-strict-overflow -fstack-protector-all
4101         add_ldflags  -Wl,-z,relro -Wl,-z,now
4102         add_cflags   -fPIE
4103         add_ldexeflags -fPIE -pie
4104     ;;
4105     ?*)
4106         die "Unknown toolchain $toolchain"
4107     ;;
4108 esac
4109
4110 if test -n "$cross_prefix"; then
4111     test -n "$arch" && test -n "$target_os" ||
4112         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4113     enable cross_compile
4114 fi
4115
4116 ar_default="${cross_prefix}${ar_default}"
4117 cc_default="${cross_prefix}${cc_default}"
4118 cxx_default="${cross_prefix}${cxx_default}"
4119 nm_default="${cross_prefix}${nm_default}"
4120 pkg_config_default="${cross_prefix}${pkg_config_default}"
4121 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4122     ranlib_default="${cross_prefix}${ranlib_default} -D"
4123 else
4124     ranlib_default="${cross_prefix}${ranlib_default}"
4125 fi
4126 strip_default="${cross_prefix}${strip_default}"
4127 windres_default="${cross_prefix}${windres_default}"
4128
4129 sysinclude_default="${sysroot}/usr/include"
4130
4131 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4132     target_exec target_os x86asmexe nvcc
4133 enabled cross_compile || host_cc_default=$cc
4134 set_default host_cc
4135
4136 pkg_config_fail_message=""
4137 if ! $pkg_config --version >/dev/null 2>&1; then
4138     warn "$pkg_config not found, library detection may fail."
4139     pkg_config=false
4140 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4141     pkg_config_fail_message="
4142 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4143 fi
4144
4145 if test $doxygen != $doxygen_default && \
4146   ! $doxygen --version >/dev/null 2>&1; then
4147     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4148 fi
4149
4150 exesuf() {
4151     case $1 in
4152         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4153     esac
4154 }
4155
4156 EXESUF=$(exesuf $target_os)
4157 HOSTEXESUF=$(exesuf $host_os)
4158
4159 # set temporary file name
4160 : ${TMPDIR:=$TEMPDIR}
4161 : ${TMPDIR:=$TMP}
4162 : ${TMPDIR:=/tmp}
4163
4164 if [ -n "$tempprefix" ] ; then
4165     mktemp(){
4166         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4167         echo "$tmpname"
4168         mkdir "$tmpname"
4169     }
4170 elif ! test_cmd mktemp -u XXXXXX; then
4171     # simple replacement for missing mktemp
4172     # NOT SAFE FOR GENERAL USE
4173     mktemp(){
4174         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4175         echo "$tmpname"
4176         mkdir "$tmpname"
4177     }
4178 fi
4179
4180 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4181     die "Unable to create temporary directory in $TMPDIR."
4182
4183 tmpfile(){
4184     tmp="${FFTMPDIR}/test"$2
4185     (set -C; exec > $tmp) 2> /dev/null ||
4186         die "Unable to create temporary file in $FFTMPDIR."
4187     eval $1=$tmp
4188 }
4189
4190 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4191 trap 'exit 2' INT
4192
4193 tmpfile TMPASM .asm
4194 tmpfile TMPC   .c
4195 tmpfile TMPCPP .cpp
4196 tmpfile TMPE   $EXESUF
4197 tmpfile TMPH   .h
4198 tmpfile TMPM   .m
4199 tmpfile TMPO   .o
4200 tmpfile TMPS   .S
4201 tmpfile TMPSH  .sh
4202 tmpfile TMPV   .ver
4203
4204 unset -f mktemp
4205
4206 chmod +x $TMPE
4207
4208 # make sure we can execute files in $TMPDIR
4209 cat > $TMPSH 2>> $logfile <<EOF
4210 #! /bin/sh
4211 EOF
4212 chmod +x $TMPSH >> $logfile 2>&1
4213 if ! $TMPSH >> $logfile 2>&1; then
4214     cat <<EOF
4215 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4216 variable to another directory and make sure that it is not mounted noexec.
4217 EOF
4218     die "Sanity test failed."
4219 fi
4220
4221 armasm_flags(){
4222     for flag; do
4223         case $flag in
4224             # Filter out MSVC cl.exe options from cflags that shouldn't
4225             # be passed to gas-preprocessor
4226             -M[TD]*)                                            ;;
4227             *)                  echo $flag                      ;;
4228         esac
4229    done
4230 }
4231
4232 cparser_flags(){
4233     for flag; do
4234         case $flag in
4235             -Wno-switch)             echo -Wno-switch-enum ;;
4236             -Wno-format-zero-length) ;;
4237             -Wdisabled-optimization) ;;
4238             -Wno-pointer-sign)       echo -Wno-other ;;
4239             *)                       echo $flag ;;
4240         esac
4241     done
4242 }
4243
4244 msvc_common_flags(){
4245     for flag; do
4246         case $flag in
4247             # In addition to specifying certain flags under the compiler
4248             # specific filters, they must be specified here as well or else the
4249             # generic catch all at the bottom will print the original flag.
4250             -Wall)                ;;
4251             -Wextra)              ;;
4252             -std=c99)             ;;
4253             # Common flags
4254             -fomit-frame-pointer) ;;
4255             -g)                   echo -Z7 ;;
4256             -fno-math-errno)      ;;
4257             -fno-common)          ;;
4258             -fno-signed-zeros)    ;;
4259             -fPIC)                ;;
4260             -mthumb)              ;;
4261             -march=*)             ;;
4262             -lz)                  echo zlib.lib ;;
4263             -lx264)               echo libx264.lib ;;
4264             -lstdc++)             ;;
4265             -l*)                  echo ${flag#-l}.lib ;;
4266             -LARGEADDRESSAWARE)   echo $flag ;;
4267             -L*)                  echo -libpath:${flag#-L} ;;
4268             *)                    echo $flag ;;
4269         esac
4270     done
4271 }
4272
4273 msvc_flags(){
4274     msvc_common_flags "$@"
4275     for flag; do
4276         case $flag in
4277             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4278                                        -wd4554 ;;
4279             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4280                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4281                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4282                                        -wd4307 \
4283                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4284         esac
4285     done
4286 }
4287
4288 icl_flags(){
4289     msvc_common_flags "$@"
4290     for flag; do
4291         case $flag in
4292             # Despite what Intel's documentation says -Wall, which is supported
4293             # on Windows, does enable remarks so disable them here.
4294             -Wall)                echo $flag -Qdiag-disable:remark ;;
4295             -std=c99)             echo -Qstd=c99 ;;
4296             -flto)                echo -ipo ;;
4297         esac
4298     done
4299 }
4300
4301 icc_flags(){
4302     for flag; do
4303         case $flag in
4304             -flto)                echo -ipo ;;
4305             *)                    echo $flag ;;
4306         esac
4307     done
4308 }
4309
4310 suncc_flags(){
4311     for flag; do
4312         case $flag in
4313             -march=*|-mcpu=*)
4314                 case "${flag#*=}" in
4315                     native)                   echo -xtarget=native       ;;
4316                     v9|niagara)               echo -xarch=sparc          ;;
4317                     ultrasparc)               echo -xarch=sparcvis       ;;
4318                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4319                     i586|pentium)             echo -xchip=pentium        ;;
4320                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4321                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4322                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4323                     pentium4*)          echo -xtarget=pentium4           ;;
4324                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4325                     *-sse3)             echo -xarch=sse3                 ;;
4326                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4327                     bonnell)                   echo -xarch=ssse3         ;;
4328                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4329                     westmere)                  echo -xtarget=westmere    ;;
4330                     silvermont)                echo -xarch=sse4_2        ;;
4331                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4332                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4333                                                echo -xarch=avx           ;;
4334                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4335                     btver1)                    echo -xarch=amdsse4a      ;;
4336                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4337                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4338                     k8|opteron|athlon64|athlon-fx)
4339                                                echo -xarch=sse2a         ;;
4340                     athlon*)                   echo -xarch=pentium_proa  ;;
4341                 esac
4342                 ;;
4343             -std=c99)             echo -xc99              ;;
4344             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4345             -fPIC)                echo -KPIC -xcode=pic32 ;;
4346             -W*,*)                echo $flag              ;;
4347             -f*-*|-W*|-mimpure-text)                      ;;
4348             -shared)              echo -G                 ;;
4349             *)                    echo $flag              ;;
4350         esac
4351     done
4352 }
4353
4354 probe_cc(){
4355     pfx=$1
4356     _cc=$2
4357     first=$3
4358
4359     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4360     unset _ld_o _ldflags _ld_lib _ld_path
4361     unset _depflags _DEPCMD _DEPFLAGS
4362     _flags_filter=echo
4363
4364     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4365         true # no-op to avoid reading stdin in following checks
4366     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4367         _type=llvm_gcc
4368         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4369         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4370         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4371         _cflags_speed='-O3'
4372         _cflags_size='-Os'
4373     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4374         _type=gcc
4375         gcc_version=$($_cc --version | head -n1)
4376         gcc_basever=$($_cc -dumpversion)
4377         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4378         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4379         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4380         case $gcc_basever in
4381             2) ;;
4382             2.*) ;;
4383             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4384         esac
4385         if [ "$first" = true ]; then
4386             case $gcc_basever in
4387                 4.2*)
4388                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4389             esac
4390         fi
4391         _cflags_speed='-O3'
4392         _cflags_size='-Os'
4393     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4394         _type=icc
4395         _ident=$($_cc --version | head -n1)
4396         _depflags='-MMD'
4397         _cflags_speed='-O3'
4398         _cflags_size='-Os'
4399         _cflags_noopt='-O1'
4400         _flags_filter=icc_flags
4401     elif $_cc -v 2>&1 | grep -q xlc; then
4402         _type=xlc
4403         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4404         _cflags_speed='-O5'
4405         _cflags_size='-O5 -qcompact'
4406     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4407         test -d "$sysroot" || die "No valid sysroot specified."
4408         _type=armcc
4409         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4410         armcc_conf="$PWD/armcc.conf"
4411         $_cc --arm_linux_configure                 \
4412              --arm_linux_config_file="$armcc_conf" \
4413              --configure_sysroot="$sysroot"        \
4414              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4415              die "Error creating armcc configuration file."
4416         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4417         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4418         as_default="${cross_prefix}gcc"
4419         _depflags='-MMD'
4420         _cflags_speed='-O3'
4421         _cflags_size='-Os'
4422     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4423         _type=clang
4424         _ident=$($_cc --version 2>/dev/null | head -n1)
4425         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4426         _cflags_speed='-O3'
4427         _cflags_size='-Oz'
4428     elif $_cc -V 2>&1 | grep -q Sun; then
4429         _type=suncc
4430         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4431         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4432         _DEPFLAGS='-xM1 -xc99'
4433         _ldflags='-std=c99'
4434         _cflags_speed='-O5'
4435         _cflags_size='-O5 -xspace'
4436         _flags_filter=suncc_flags
4437     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4438         _type=pathscale
4439         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4440         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4441         _cflags_speed='-O2'
4442         _cflags_size='-Os'
4443         _flags_filter='filter_out -Wdisabled-optimization'
4444     elif $_cc -v 2>&1 | grep -q Open64; then
4445         _type=open64
4446         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4447         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4448         _cflags_speed='-O2'
4449         _cflags_size='-Os'
4450         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4451     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4452         _type=armasm
4453         _ident=$($_cc | head -n1)
4454         # 4509: "This form of conditional instruction is deprecated"
4455         _flags="-nologo -ignore 4509"
4456         _flags_filter=armasm_flags
4457     elif $_cc 2>&1 | grep -q Intel; then
4458         _type=icl
4459         _ident=$($_cc 2>&1 | head -n1)
4460         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4461         # Not only is O3 broken on 13.x+ but it is slower on all previous
4462         # versions (tested) as well.
4463         _cflags_speed="-O2"
4464         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4465         if $_cc 2>&1 | grep -q Linker; then
4466             _ld_o='-out:$@'
4467         else
4468             _ld_o='-Fe$@'
4469         fi
4470         _cc_o='-Fo$@'
4471         _cc_e='-P'
4472         _flags_filter=icl_flags
4473         _ld_lib='lib%.a'
4474         _ld_path='-libpath:'
4475         # -Qdiag-error to make icl error when seeing certain unknown arguments
4476         _flags='-nologo -Qdiag-error:4044,10157'
4477         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4478         # with MSVC which enables it by default.
4479         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4480         disable stripping
4481     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4482         # lld can emulate multiple different linkers; in ms link.exe mode,
4483         # the -? parameter gives the help output which contains an identifyable
4484         # string, while it gives an error in other modes.
4485         _type=lld-link
4486         # The link.exe mode doesn't have a switch for getting the version,
4487         # but we can force it back to gnu mode and get the version from there.
4488         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4489         _ld_o='-out:$@'
4490         _flags_filter=msvc_flags
4491         _ld_lib='lib%.a'
4492         _ld_path='-libpath:'
4493     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4494         _type=msvc
4495         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4496         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4497         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4498         _cflags_speed="-O2"
4499         _cflags_size="-O1"
4500         _cflags_noopt="-O1"
4501         if $_cc -nologo- 2>&1 | grep -q Linker; then
4502             _ld_o='-out:$@'
4503         else
4504             _ld_o='-Fe$@'
4505         fi
4506         _cc_o='-Fo$@'
4507         _cc_e='-P -Fi$@'
4508         _flags_filter=msvc_flags
4509         _ld_lib='lib%.a'
4510         _ld_path='-libpath:'
4511         _flags='-nologo'
4512         disable stripping
4513     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4514         _type=cparser
4515         _ident=$($_cc --version | head -n1)
4516         _depflags='-MMD'
4517         _cflags_speed='-O4'
4518         _cflags_size='-O2'
4519         _flags_filter=cparser_flags
4520     fi
4521
4522     eval ${pfx}_type=\$_type
4523     eval ${pfx}_ident=\$_ident
4524 }
4525
4526 set_ccvars(){
4527     eval ${1}_C=\${_cc_c-\${${1}_C}}
4528     eval ${1}_E=\${_cc_e-\${${1}_E}}
4529     eval ${1}_O=\${_cc_o-\${${1}_O}}
4530
4531     if [ -n "$_depflags" ]; then
4532         eval ${1}_DEPFLAGS=\$_depflags
4533     else
4534         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4535         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4536         eval DEP${1}FLAGS=\$_flags
4537     fi
4538 }
4539
4540 probe_cc cc "$cc" "true"
4541 cflags_filter=$_flags_filter
4542 cflags_speed=$_cflags_speed
4543 cflags_size=$_cflags_size
4544 cflags_noopt=$_cflags_noopt
4545 add_cflags $_flags $_cflags
4546 cc_ldflags=$_ldflags
4547 set_ccvars CC
4548 set_ccvars CXX
4549
4550 probe_cc hostcc "$host_cc"
4551 host_cflags_filter=$_flags_filter
4552 host_cflags_speed=$_cflags_speed
4553 add_host_cflags  $_flags $_cflags
4554 set_ccvars HOSTCC
4555
4556 test -n "$cc_type" && enable $cc_type ||
4557     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4558
4559 : ${as_default:=$cc}
4560 : ${objcc_default:=$cc}
4561 : ${dep_cc_default:=$cc}
4562 : ${ld_default:=$cc}
4563 : ${host_ld_default:=$host_cc}
4564 set_default ar as objcc dep_cc ld ln_s host_ld windres
4565
4566 probe_cc as "$as"
4567 asflags_filter=$_flags_filter
4568 add_asflags $_flags $_cflags
4569 set_ccvars AS
4570
4571 probe_cc objcc "$objcc"
4572 objcflags_filter=$_flags_filter
4573 add_objcflags $_flags $_cflags
4574 set_ccvars OBJC
4575
4576 probe_cc ld "$ld"
4577 ldflags_filter=$_flags_filter
4578 add_ldflags $_flags $_ldflags
4579 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4580 LD_O=${_ld_o-$LD_O}
4581 LD_LIB=${_ld_lib-$LD_LIB}
4582 LD_PATH=${_ld_path-$LD_PATH}
4583
4584 probe_cc hostld "$host_ld"
4585 host_ldflags_filter=$_flags_filter
4586 add_host_ldflags $_flags $_ldflags
4587 HOSTLD_O=${_ld_o-$HOSTLD_O}
4588
4589 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4590     probe_cc depcc "$dep_cc"
4591     CCDEP=${_DEPCMD:-$DEPCMD}
4592     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4593     DEPCCFLAGS=$_flags
4594 fi
4595
4596 if $ar 2>&1 | grep -q Microsoft; then
4597     arflags="-nologo"
4598     ar_o='-out:$@'
4599 elif $ar 2>&1 | grep -q "\[D\] "; then
4600     arflags="rcD"
4601     ar_o='$@'
4602 else
4603     arflags="rc"
4604     ar_o='$@'
4605 fi
4606
4607 add_cflags $extra_cflags
4608 add_cxxflags $extra_cxxflags
4609 add_objcflags $extra_objcflags
4610 add_asflags $extra_cflags
4611
4612 if test -n "$sysroot"; then
4613     case "$cc_type" in
4614         gcc|llvm_gcc|clang)
4615             add_cppflags --sysroot="$sysroot"
4616             add_ldflags --sysroot="$sysroot"
4617         ;;
4618     esac
4619 fi
4620
4621 if test "$cpu" = host; then
4622     enabled cross_compile &&
4623         die "--cpu=host makes no sense when cross-compiling."
4624
4625     case "$cc_type" in
4626         gcc|llvm_gcc)
4627             check_native(){
4628                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4629                 sed -n "/cc1.*$1=/{
4630                             s/.*$1=\\([^ ]*\\).*/\\1/
4631                             p
4632                             q
4633                         }" $TMPE
4634             }
4635             cpu=$(check_native -march || check_native -mcpu)
4636         ;;
4637         clang)
4638             check_native(){
4639                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4640                 sed -n "/cc1.*-target-cpu /{
4641                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4642                             p
4643                             q
4644                         }" $TMPE
4645             }
4646             cpu=$(check_native -march)
4647         ;;
4648     esac
4649
4650     test "${cpu:-host}" = host &&
4651         die "--cpu=host not supported with compiler $cc"
4652 fi
4653
4654 # Deal with common $arch aliases
4655 case "$arch" in
4656     aarch64|arm64)
4657         arch="aarch64"
4658     ;;
4659     arm*|iPad*|iPhone*)
4660         arch="arm"
4661     ;;
4662     mips*|IP*)
4663         case "$arch" in
4664         *el)
4665             add_cppflags -EL
4666             add_ldflags -EL
4667         ;;
4668         *eb)
4669             add_cppflags -EB
4670             add_ldflags -EB
4671         ;;
4672         esac
4673         arch="mips"
4674     ;;
4675     parisc*|hppa*)
4676         arch="parisc"
4677     ;;
4678     "Power Macintosh"|ppc*|powerpc*)
4679         arch="ppc"
4680     ;;
4681     s390|s390x)
4682         arch="s390"
4683     ;;
4684     sh4|sh)
4685         arch="sh4"
4686     ;;
4687     sun4*|sparc*)
4688         arch="sparc"
4689     ;;
4690     tilegx|tile-gx)
4691         arch="tilegx"
4692     ;;
4693     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4694         arch="x86"
4695     ;;
4696 esac
4697
4698 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4699 enable $arch
4700
4701 # Add processor-specific flags
4702 if enabled aarch64; then
4703
4704     case $cpu in
4705         armv*)
4706             cpuflags="-march=$cpu"
4707         ;;
4708         *)
4709             cpuflags="-mcpu=$cpu"
4710         ;;
4711     esac
4712
4713 elif enabled alpha; then
4714
4715     cpuflags="-mcpu=$cpu"
4716
4717 elif enabled arm; then
4718
4719     check_arm_arch() {
4720         test_cpp_condition stddef.h \
4721             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4722             $cpuflags
4723     }
4724
4725     probe_arm_arch() {
4726         if   check_arm_arch 4;        then echo armv4
4727         elif check_arm_arch 4T;       then echo armv4t
4728         elif check_arm_arch 5;        then echo armv5
4729         elif check_arm_arch 5E;       then echo armv5e
4730         elif check_arm_arch 5T;       then echo armv5t
4731         elif check_arm_arch 5TE;      then echo armv5te
4732         elif check_arm_arch 5TEJ;     then echo armv5te
4733         elif check_arm_arch 6;        then echo armv6
4734         elif check_arm_arch 6J;       then echo armv6j
4735         elif check_arm_arch 6K;       then echo armv6k
4736         elif check_arm_arch 6Z;       then echo armv6z
4737         elif check_arm_arch 6KZ;      then echo armv6zk
4738         elif check_arm_arch 6ZK;      then echo armv6zk
4739         elif check_arm_arch 6T2;      then echo armv6t2
4740         elif check_arm_arch 7;        then echo armv7
4741         elif check_arm_arch 7A  7_A;  then echo armv7-a
4742         elif check_arm_arch 7S;       then echo armv7-a
4743         elif check_arm_arch 7R  7_R;  then echo armv7-r
4744         elif check_arm_arch 7M  7_M;  then echo armv7-m
4745         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4746         elif check_arm_arch 8A  8_A;  then echo armv8-a
4747         fi
4748     }
4749
4750     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4751
4752     case $cpu in
4753         armv*)
4754             cpuflags="-march=$cpu"
4755             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4756         ;;
4757         *)
4758             cpuflags="-mcpu=$cpu"
4759             case $cpu in
4760                 cortex-a*)                               subarch=armv7a  ;;
4761                 cortex-r*)                               subarch=armv7r  ;;
4762                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4763                 arm11*)                                  subarch=armv6   ;;
4764                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4765                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4766                 *)                             subarch=$(probe_arm_arch) ;;
4767             esac
4768         ;;
4769     esac
4770
4771     case "$subarch" in
4772         armv5t*)    enable fast_clz                ;;
4773         armv[6-8]*)
4774             enable fast_clz
4775             disabled fast_unaligned || enable fast_unaligned
4776             ;;
4777     esac
4778
4779 elif enabled avr32; then
4780
4781     case $cpu in
4782         ap7[02]0[0-2])
4783             subarch="avr32_ap"
4784             cpuflags="-mpart=$cpu"
4785         ;;
4786         ap)
4787             subarch="avr32_ap"
4788             cpuflags="-march=$cpu"
4789         ;;
4790         uc3[ab]*)
4791             subarch="avr32_uc"
4792             cpuflags="-mcpu=$cpu"
4793         ;;
4794         uc)
4795             subarch="avr32_uc"
4796             cpuflags="-march=$cpu"
4797         ;;
4798     esac
4799
4800 elif enabled bfin; then
4801
4802     cpuflags="-mcpu=$cpu"
4803
4804 elif enabled mips; then
4805
4806     cpuflags="-march=$cpu"
4807
4808     if [ "$cpu" != "generic" ]; then
4809         disable mips32r2
4810         disable mips32r5
4811         disable mips64r2
4812         disable mips32r6
4813         disable mips64r6
4814         disable loongson2
4815         disable loongson3
4816
4817         case $cpu in
4818             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4819                 enable mips32r2
4820                 disable msa
4821             ;;
4822             p5600|i6400|p6600)
4823                 disable mipsdsp
4824                 disable mipsdspr2
4825             ;;
4826             loongson*)
4827                 enable loongson2
4828                 enable loongson3
4829                 enable local_aligned
4830                 enable simd_align_16
4831                 enable fast_64bit
4832                 enable fast_clz
4833                 enable fast_cmov
4834                 enable fast_unaligned
4835                 disable aligned_stack
4836                 disable mipsfpu
4837                 disable mipsdsp
4838                 disable mipsdspr2
4839                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4840                 if [ $cc == gcc ]; then
4841                     gcc_version=$(gcc -dumpversion)
4842                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4843                         expensive_optimization_flag=""
4844                     else
4845                         expensive_optimization_flag="-fno-expensive-optimizations"
4846                     fi
4847                 fi
4848                 case $cpu in
4849                     loongson3*)
4850                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4851                     ;;
4852                     loongson2e)
4853                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4854                     ;;
4855                     loongson2f)
4856                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4857                     ;;
4858                 esac
4859             ;;
4860             *)
4861                 # Unknown CPU. Disable everything.
4862                 warn "unknown CPU. Disabling all MIPS optimizations."
4863                 disable mipsfpu
4864                 disable mipsdsp
4865                 disable mipsdspr2
4866                 disable msa
4867                 disable mmi
4868             ;;
4869         esac
4870
4871         case $cpu in
4872             24kc)
4873                 disable mipsfpu
4874                 disable mipsdsp
4875                 disable mipsdspr2
4876             ;;
4877             24kf*)
4878                 disable mipsdsp
4879                 disable mipsdspr2
4880             ;;
4881             24kec|34kc|1004kc)
4882                 disable mipsfpu
4883                 disable mipsdspr2
4884             ;;
4885             24kef*|34kf*|1004kf*)
4886                 disable mipsdspr2
4887             ;;
4888             74kc)
4889                 disable mipsfpu
4890             ;;
4891             p5600)
4892                 enable mips32r5
4893                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4894             ;;
4895             i6400)
4896                 enable mips64r6
4897                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4898             ;;
4899             p6600)
4900                 enable mips64r6
4901                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4902             ;;
4903         esac
4904     else
4905         # We do not disable anything. Is up to the user to disable the unwanted features.
4906         warn 'generic cpu selected'
4907     fi
4908
4909 elif enabled ppc; then
4910
4911     disable ldbrx
4912
4913     case $(tolower $cpu) in
4914         601|ppc601|powerpc601)
4915             cpuflags="-mcpu=601"
4916             disable altivec
4917         ;;
4918         603*|ppc603*|powerpc603*)
4919             cpuflags="-mcpu=603"
4920             disable altivec
4921         ;;
4922         604*|ppc604*|powerpc604*)
4923             cpuflags="-mcpu=604"
4924             disable altivec
4925         ;;
4926         g3|75*|ppc75*|powerpc75*)
4927             cpuflags="-mcpu=750"
4928             disable altivec
4929         ;;
4930         g4|745*|ppc745*|powerpc745*)
4931             cpuflags="-mcpu=7450"
4932             disable vsx
4933         ;;
4934         74*|ppc74*|powerpc74*)
4935             cpuflags="-mcpu=7400"
4936             disable vsx
4937         ;;
4938         g5|970|ppc970|powerpc970)
4939             cpuflags="-mcpu=970"
4940             disable vsx
4941         ;;
4942         power[3-6]*)
4943             cpuflags="-mcpu=$cpu"
4944             disable vsx
4945         ;;
4946         power[7-8]*)
4947             cpuflags="-mcpu=$cpu"
4948         ;;
4949         cell)
4950             cpuflags="-mcpu=cell"
4951           &nb