e79dae896c84966a623d10170efa17540e6fcbe7
[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_decoder_select="h264_mp4toannexb_bsf"
2961 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2962 hevc_amf_encoder_deps="amf"
2963 hevc_cuvid_decoder_deps="cuvid"
2964 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2965 hevc_mediacodec_decoder_deps="mediacodec"
2966 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2967 hevc_nvenc_encoder_deps="nvenc"
2968 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2969 hevc_qsv_encoder_select="hevcparse qsvenc"
2970 hevc_rkmpp_decoder_deps="rkmpp"
2971 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2972 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2973 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2974 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2975 hevc_v4l2m2m_decoder_select="hevc_mp4toannexb_bsf"
2976 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2977 mjpeg_cuvid_decoder_deps="cuvid"
2978 mjpeg_qsv_encoder_deps="libmfx"
2979 mjpeg_qsv_encoder_select="qsvenc"
2980 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2981 mjpeg_vaapi_encoder_select="cbs_jpeg jpegtables vaapi_encode"
2982 mpeg1_cuvid_decoder_deps="cuvid"
2983 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2984 mpeg2_crystalhd_decoder_select="crystalhd"
2985 mpeg2_cuvid_decoder_deps="cuvid"
2986 mpeg2_mmal_decoder_deps="mmal"
2987 mpeg2_mediacodec_decoder_deps="mediacodec"
2988 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2989 mpeg2_qsv_encoder_select="qsvenc"
2990 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2991 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2992 mpeg4_crystalhd_decoder_select="crystalhd"
2993 mpeg4_cuvid_decoder_deps="cuvid"
2994 mpeg4_mediacodec_decoder_deps="mediacodec"
2995 mpeg4_mmal_decoder_deps="mmal"
2996 mpeg4_omx_encoder_deps="omx"
2997 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2998 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2999 msmpeg4_crystalhd_decoder_select="crystalhd"
3000 nvenc_h264_encoder_select="h264_nvenc_encoder"
3001 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
3002 vc1_crystalhd_decoder_select="crystalhd"
3003 vc1_cuvid_decoder_deps="cuvid"
3004 vc1_mmal_decoder_deps="mmal"
3005 vc1_qsv_decoder_select="qsvdec vc1_parser"
3006 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3007 vp8_cuvid_decoder_deps="cuvid"
3008 vp8_mediacodec_decoder_deps="mediacodec"
3009 vp8_qsv_decoder_select="qsvdec vp8_parser"
3010 vp8_rkmpp_decoder_deps="rkmpp"
3011 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3012 vp8_vaapi_encoder_select="vaapi_encode"
3013 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3014 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3015 vp9_cuvid_decoder_deps="cuvid"
3016 vp9_mediacodec_decoder_deps="mediacodec"
3017 vp9_rkmpp_decoder_deps="rkmpp"
3018 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3019 vp9_vaapi_encoder_select="vaapi_encode"
3020 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3021 wmv3_crystalhd_decoder_select="crystalhd"
3022
3023 # parsers
3024 aac_parser_select="adts_header"
3025 av1_parser_select="cbs_av1"
3026 h264_parser_select="golomb h264dsp h264parse"
3027 hevc_parser_select="hevcparse"
3028 mpegaudio_parser_select="mpegaudioheader"
3029 mpegvideo_parser_select="mpegvideo"
3030 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3031 vc1_parser_select="vc1dsp"
3032
3033 # bitstream_filters
3034 aac_adtstoasc_bsf_select="adts_header"
3035 av1_metadata_bsf_select="cbs_av1"
3036 eac3_core_bsf_select="ac3_parser"
3037 filter_units_bsf_select="cbs"
3038 h264_metadata_bsf_deps="const_nan"
3039 h264_metadata_bsf_select="cbs_h264"
3040 h264_redundant_pps_bsf_select="cbs_h264"
3041 hevc_metadata_bsf_select="cbs_h265"
3042 mjpeg2jpeg_bsf_select="jpegtables"
3043 mpeg2_metadata_bsf_select="cbs_mpeg2"
3044 trace_headers_bsf_select="cbs"
3045 vp9_metadata_bsf_select="cbs_vp9"
3046
3047 # external libraries
3048 aac_at_decoder_deps="audiotoolbox"
3049 aac_at_decoder_select="aac_adtstoasc_bsf"
3050 ac3_at_decoder_deps="audiotoolbox"
3051 ac3_at_decoder_select="ac3_parser"
3052 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3053 alac_at_decoder_deps="audiotoolbox"
3054 amr_nb_at_decoder_deps="audiotoolbox"
3055 avisynth_deps_any="libdl LoadLibrary"
3056 avisynth_demuxer_deps="avisynth"
3057 avisynth_demuxer_select="riffdec"
3058 eac3_at_decoder_deps="audiotoolbox"
3059 eac3_at_decoder_select="ac3_parser"
3060 gsm_ms_at_decoder_deps="audiotoolbox"
3061 ilbc_at_decoder_deps="audiotoolbox"
3062 mp1_at_decoder_deps="audiotoolbox"
3063 mp2_at_decoder_deps="audiotoolbox"
3064 mp3_at_decoder_deps="audiotoolbox"
3065 mp1_at_decoder_select="mpegaudioheader"
3066 mp2_at_decoder_select="mpegaudioheader"
3067 mp3_at_decoder_select="mpegaudioheader"
3068 pcm_alaw_at_decoder_deps="audiotoolbox"
3069 pcm_mulaw_at_decoder_deps="audiotoolbox"
3070 qdmc_at_decoder_deps="audiotoolbox"
3071 qdm2_at_decoder_deps="audiotoolbox"
3072 aac_at_encoder_deps="audiotoolbox"
3073 aac_at_encoder_select="audio_frame_queue"
3074 alac_at_encoder_deps="audiotoolbox"
3075 alac_at_encoder_select="audio_frame_queue"
3076 ilbc_at_encoder_deps="audiotoolbox"
3077 ilbc_at_encoder_select="audio_frame_queue"
3078 pcm_alaw_at_encoder_deps="audiotoolbox"
3079 pcm_alaw_at_encoder_select="audio_frame_queue"
3080 pcm_mulaw_at_encoder_deps="audiotoolbox"
3081 pcm_mulaw_at_encoder_select="audio_frame_queue"
3082 chromaprint_muxer_deps="chromaprint"
3083 h264_videotoolbox_encoder_deps="pthreads"
3084 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3085 hevc_videotoolbox_encoder_deps="pthreads"
3086 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3087 libaom_av1_decoder_deps="libaom"
3088 libaom_av1_encoder_deps="libaom"
3089 libaom_av1_encoder_select="extract_extradata_bsf"
3090 libcelt_decoder_deps="libcelt"
3091 libcodec2_decoder_deps="libcodec2"
3092 libcodec2_encoder_deps="libcodec2"
3093 libdavs2_decoder_deps="libdavs2"
3094 libfdk_aac_decoder_deps="libfdk_aac"
3095 libfdk_aac_encoder_deps="libfdk_aac"
3096 libfdk_aac_encoder_select="audio_frame_queue"
3097 libgme_demuxer_deps="libgme"
3098 libgsm_decoder_deps="libgsm"
3099 libgsm_encoder_deps="libgsm"
3100 libgsm_ms_decoder_deps="libgsm"
3101 libgsm_ms_encoder_deps="libgsm"
3102 libilbc_decoder_deps="libilbc"
3103 libilbc_encoder_deps="libilbc"
3104 libkvazaar_encoder_deps="libkvazaar"
3105 libmodplug_demuxer_deps="libmodplug"
3106 libmp3lame_encoder_deps="libmp3lame"
3107 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3108 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3109 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3110 libopencore_amrnb_encoder_select="audio_frame_queue"
3111 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3112 libopenh264_decoder_deps="libopenh264"
3113 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3114 libopenh264_encoder_deps="libopenh264"
3115 libopenjpeg_decoder_deps="libopenjpeg"
3116 libopenjpeg_encoder_deps="libopenjpeg"
3117 libopenmpt_demuxer_deps="libopenmpt"
3118 libopus_decoder_deps="libopus"
3119 libopus_encoder_deps="libopus"
3120 libopus_encoder_select="audio_frame_queue"
3121 librsvg_decoder_deps="librsvg"
3122 libshine_encoder_deps="libshine"
3123 libshine_encoder_select="audio_frame_queue"
3124 libspeex_decoder_deps="libspeex"
3125 libspeex_encoder_deps="libspeex"
3126 libspeex_encoder_select="audio_frame_queue"
3127 libtheora_encoder_deps="libtheora"
3128 libtwolame_encoder_deps="libtwolame"
3129 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3130 libvorbis_decoder_deps="libvorbis"
3131 libvorbis_encoder_deps="libvorbis libvorbisenc"
3132 libvorbis_encoder_select="audio_frame_queue"
3133 libvpx_vp8_decoder_deps="libvpx"
3134 libvpx_vp8_encoder_deps="libvpx"
3135 libvpx_vp9_decoder_deps="libvpx"
3136 libvpx_vp9_encoder_deps="libvpx"
3137 libwavpack_encoder_deps="libwavpack"
3138 libwavpack_encoder_select="audio_frame_queue"
3139 libwebp_encoder_deps="libwebp"
3140 libwebp_anim_encoder_deps="libwebp"
3141 libx262_encoder_deps="libx262"
3142 libx264_encoder_deps="libx264"
3143 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3144 libx264rgb_encoder_select="libx264_encoder"
3145 libx265_encoder_deps="libx265"
3146 libxavs_encoder_deps="libxavs"
3147 libxavs2_encoder_deps="libxavs2"
3148 libxvid_encoder_deps="libxvid"
3149 libzvbi_teletext_decoder_deps="libzvbi"
3150 vapoursynth_demuxer_deps="vapoursynth"
3151 videotoolbox_suggest="coreservices"
3152 videotoolbox_deps="corefoundation coremedia corevideo"
3153 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3154
3155 # demuxers / muxers
3156 ac3_demuxer_select="ac3_parser"
3157 aiff_muxer_select="iso_media"
3158 asf_demuxer_select="riffdec"
3159 asf_o_demuxer_select="riffdec"
3160 asf_muxer_select="riffenc"
3161 asf_stream_muxer_select="asf_muxer"
3162 avi_demuxer_select="iso_media riffdec exif"
3163 avi_muxer_select="riffenc"
3164 caf_demuxer_select="iso_media riffdec"
3165 caf_muxer_select="iso_media"
3166 dash_muxer_select="mp4_muxer"
3167 dash_demuxer_deps="libxml2"
3168 dirac_demuxer_select="dirac_parser"
3169 dts_demuxer_select="dca_parser"
3170 dtshd_demuxer_select="dca_parser"
3171 dv_demuxer_select="dvprofile"
3172 dv_muxer_select="dvprofile"
3173 dxa_demuxer_select="riffdec"
3174 eac3_demuxer_select="ac3_parser"
3175 f4v_muxer_select="mov_muxer"
3176 fifo_muxer_deps="threads"
3177 flac_demuxer_select="flac_parser"
3178 hds_muxer_select="flv_muxer"
3179 hls_muxer_select="mpegts_muxer"
3180 hls_muxer_suggest="gcrypt openssl"
3181 image2_alias_pix_demuxer_select="image2_demuxer"
3182 image2_brender_pix_demuxer_select="image2_demuxer"
3183 ipod_muxer_select="mov_muxer"
3184 ismv_muxer_select="mov_muxer"
3185 ivf_muxer_select="av1_metadata_bsf vp9_superframe_bsf"
3186 matroska_audio_muxer_select="matroska_muxer"
3187 matroska_demuxer_select="iso_media riffdec"
3188 matroska_demuxer_suggest="bzlib lzo zlib"
3189 matroska_muxer_select="iso_media riffenc"
3190 mmf_muxer_select="riffenc"
3191 mov_demuxer_select="iso_media riffdec"
3192 mov_demuxer_suggest="zlib"
3193 mov_muxer_select="iso_media riffenc rtpenc_chain"
3194 mp3_demuxer_select="mpegaudio_parser"
3195 mp3_muxer_select="mpegaudioheader"
3196 mp4_muxer_select="mov_muxer"
3197 mpegts_demuxer_select="iso_media"
3198 mpegts_muxer_select="adts_muxer latm_muxer"
3199 mpegtsraw_demuxer_select="mpegts_demuxer"
3200 mxf_d10_muxer_select="mxf_muxer"
3201 mxf_opatom_muxer_select="mxf_muxer"
3202 nut_muxer_select="riffenc"
3203 nuv_demuxer_select="riffdec"
3204 oga_muxer_select="ogg_muxer"
3205 ogg_demuxer_select="dirac_parse"
3206 ogv_muxer_select="ogg_muxer"
3207 opus_muxer_select="ogg_muxer"
3208 psp_muxer_select="mov_muxer"
3209 rtp_demuxer_select="sdp_demuxer"
3210 rtp_muxer_select="golomb"
3211 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3212 rtsp_demuxer_select="http_protocol rtpdec"
3213 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3214 sap_demuxer_select="sdp_demuxer"
3215 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3216 sdp_demuxer_select="rtpdec"
3217 smoothstreaming_muxer_select="ismv_muxer"
3218 spdif_demuxer_select="adts_header"
3219 spdif_muxer_select="adts_header"
3220 spx_muxer_select="ogg_muxer"
3221 swf_demuxer_suggest="zlib"
3222 tak_demuxer_select="tak_parser"
3223 tg2_muxer_select="mov_muxer"
3224 tgp_muxer_select="mov_muxer"
3225 vobsub_demuxer_select="mpegps_demuxer"
3226 w64_demuxer_select="wav_demuxer"
3227 w64_muxer_select="wav_muxer"
3228 wav_demuxer_select="riffdec"
3229 wav_muxer_select="riffenc"
3230 webm_muxer_select="iso_media riffenc"
3231 webm_dash_manifest_demuxer_select="matroska_demuxer"
3232 wtv_demuxer_select="mpegts_demuxer riffdec"
3233 wtv_muxer_select="mpegts_muxer riffenc"
3234 xmv_demuxer_select="riffdec"
3235 xwma_demuxer_select="riffdec"
3236
3237 # indevs / outdevs
3238 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3239 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3240 alsa_indev_deps="alsa"
3241 alsa_outdev_deps="alsa"
3242 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3243 avfoundation_indev_suggest="coregraphics applicationservices"
3244 avfoundation_indev_extralibs="-framework Foundation"
3245 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3246 caca_outdev_deps="libcaca"
3247 decklink_deps_any="libdl LoadLibrary"
3248 decklink_indev_deps="decklink threads"
3249 decklink_indev_extralibs="-lstdc++"
3250 decklink_outdev_deps="decklink threads"
3251 decklink_outdev_suggest="libklvanc"
3252 decklink_outdev_extralibs="-lstdc++"
3253 libndi_newtek_indev_deps="libndi_newtek"
3254 libndi_newtek_indev_extralibs="-lndi"
3255 libndi_newtek_outdev_deps="libndi_newtek"
3256 libndi_newtek_outdev_extralibs="-lndi"
3257 dshow_indev_deps="IBaseFilter"
3258 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3259 fbdev_indev_deps="linux_fb_h"
3260 fbdev_outdev_deps="linux_fb_h"
3261 gdigrab_indev_deps="CreateDIBSection"
3262 gdigrab_indev_extralibs="-lgdi32"
3263 gdigrab_indev_select="bmp_decoder"
3264 iec61883_indev_deps="libiec61883"
3265 jack_indev_deps="libjack"
3266 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3267 kmsgrab_indev_deps="libdrm"
3268 lavfi_indev_deps="avfilter"
3269 libcdio_indev_deps="libcdio"
3270 libdc1394_indev_deps="libdc1394"
3271 openal_indev_deps="openal"
3272 opengl_outdev_deps="opengl"
3273 opengl_outdev_suggest="sdl2"
3274 oss_indev_deps_any="sys_soundcard_h"
3275 oss_outdev_deps_any="sys_soundcard_h"
3276 pulse_indev_deps="libpulse"
3277 pulse_outdev_deps="libpulse"
3278 sdl2_outdev_deps="sdl2"
3279 sndio_indev_deps="sndio"
3280 sndio_outdev_deps="sndio"
3281 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3282 v4l2_indev_suggest="libv4l2"
3283 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3284 v4l2_outdev_suggest="libv4l2"
3285 vfwcap_indev_deps="vfw32 vfwcap_defines"
3286 xcbgrab_indev_deps="libxcb"
3287 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3288 xv_outdev_deps="xlib"
3289
3290 # protocols
3291 async_protocol_deps="threads"
3292 bluray_protocol_deps="libbluray"
3293 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3294 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3295 ffrtmpcrypt_protocol_select="tcp_protocol"
3296 ffrtmphttp_protocol_conflict="librtmp_protocol"
3297 ffrtmphttp_protocol_select="http_protocol"
3298 ftp_protocol_select="tcp_protocol"
3299 gopher_protocol_select="network"
3300 http_protocol_select="tcp_protocol"
3301 http_protocol_suggest="zlib"
3302 httpproxy_protocol_select="tcp_protocol"
3303 httpproxy_protocol_suggest="zlib"
3304 https_protocol_select="tls_protocol"
3305 https_protocol_suggest="zlib"
3306 icecast_protocol_select="http_protocol"
3307 mmsh_protocol_select="http_protocol"
3308 mmst_protocol_select="network"
3309 rtmp_protocol_conflict="librtmp_protocol"
3310 rtmp_protocol_select="tcp_protocol"
3311 rtmp_protocol_suggest="zlib"
3312 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3313 rtmpe_protocol_suggest="zlib"
3314 rtmps_protocol_conflict="librtmp_protocol"
3315 rtmps_protocol_select="tls_protocol"
3316 rtmps_protocol_suggest="zlib"
3317 rtmpt_protocol_select="ffrtmphttp_protocol"
3318 rtmpt_protocol_suggest="zlib"
3319 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3320 rtmpte_protocol_suggest="zlib"
3321 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3322 rtmpts_protocol_suggest="zlib"
3323 rtp_protocol_select="udp_protocol"
3324 schannel_conflict="openssl gnutls libtls mbedtls"
3325 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3326 sctp_protocol_select="network"
3327 securetransport_conflict="openssl gnutls libtls mbedtls"
3328 srtp_protocol_select="rtp_protocol srtp"
3329 tcp_protocol_select="network"
3330 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3331 tls_protocol_select="tcp_protocol"
3332 udp_protocol_select="network"
3333 udplite_protocol_select="network"
3334 unix_protocol_deps="sys_un_h"
3335 unix_protocol_select="network"
3336
3337 # external library protocols
3338 librtmp_protocol_deps="librtmp"
3339 librtmpe_protocol_deps="librtmp"
3340 librtmps_protocol_deps="librtmp"
3341 librtmpt_protocol_deps="librtmp"
3342 librtmpte_protocol_deps="librtmp"
3343 libsmbclient_protocol_deps="libsmbclient gplv3"
3344 libsrt_protocol_deps="libsrt"
3345 libsrt_protocol_select="network"
3346 libssh_protocol_deps="libssh"
3347 libtls_conflict="openssl gnutls mbedtls"
3348
3349 # filters
3350 afftdn_filter_deps="avcodec"
3351 afftdn_filter_select="fft"
3352 afftfilt_filter_deps="avcodec"
3353 afftfilt_filter_select="fft"
3354 afir_filter_deps="avcodec"
3355 afir_filter_select="fft"
3356 amovie_filter_deps="avcodec avformat"
3357 aresample_filter_deps="swresample"
3358 ass_filter_deps="libass"
3359 atempo_filter_deps="avcodec"
3360 atempo_filter_select="rdft"
3361 avgblur_opencl_filter_deps="opencl"
3362 azmq_filter_deps="libzmq"
3363 blackframe_filter_deps="gpl"
3364 bm3d_filter_deps="avcodec"
3365 bm3d_filter_select="dct"
3366 boxblur_filter_deps="gpl"
3367 boxblur_opencl_filter_deps="opencl gpl"
3368 bs2b_filter_deps="libbs2b"
3369 colormatrix_filter_deps="gpl"
3370 convolution_opencl_filter_deps="opencl"
3371 convolve_filter_deps="avcodec"
3372 convolve_filter_select="fft"
3373 coreimage_filter_deps="coreimage appkit"
3374 coreimage_filter_extralibs="-framework OpenGL"
3375 coreimagesrc_filter_deps="coreimage appkit"
3376 coreimagesrc_filter_extralibs="-framework OpenGL"
3377 cover_rect_filter_deps="avcodec avformat gpl"
3378 cropdetect_filter_deps="gpl"
3379 deconvolve_filter_deps="avcodec"
3380 deconvolve_filter_select="fft"
3381 deinterlace_qsv_filter_deps="libmfx"
3382 deinterlace_vaapi_filter_deps="vaapi"
3383 delogo_filter_deps="gpl"
3384 denoise_vaapi_filter_deps="vaapi"
3385 deshake_filter_select="pixelutils"
3386 dilation_opencl_filter_deps="opencl"
3387 drawtext_filter_deps="libfreetype"
3388 drawtext_filter_suggest="libfontconfig libfribidi"
3389 elbg_filter_deps="avcodec"
3390 eq_filter_deps="gpl"
3391 erosion_opencl_filter_deps="opencl"
3392 fftfilt_filter_deps="avcodec"
3393 fftfilt_filter_select="rdft"
3394 fftdnoiz_filter_deps="avcodec"
3395 fftdnoiz_filter_select="fft"
3396 find_rect_filter_deps="avcodec avformat gpl"
3397 firequalizer_filter_deps="avcodec"
3398 firequalizer_filter_select="rdft"
3399 flite_filter_deps="libflite"
3400 framerate_filter_select="pixelutils"
3401 frei0r_filter_deps="frei0r libdl"
3402 frei0r_src_filter_deps="frei0r libdl"
3403 fspp_filter_deps="gpl"
3404 geq_filter_deps="gpl"
3405 histeq_filter_deps="gpl"
3406 hqdn3d_filter_deps="gpl"
3407 interlace_filter_deps="gpl"
3408 kerndeint_filter_deps="gpl"
3409 ladspa_filter_deps="ladspa libdl"
3410 lensfun_filter_deps="liblensfun version3"
3411 lv2_filter_deps="lv2"
3412 mcdeint_filter_deps="avcodec gpl"
3413 movie_filter_deps="avcodec avformat"
3414 mpdecimate_filter_deps="gpl"
3415 mpdecimate_filter_select="pixelutils"
3416 mptestsrc_filter_deps="gpl"
3417 negate_filter_deps="lut_filter"
3418 nnedi_filter_deps="gpl"
3419 ocr_filter_deps="libtesseract"
3420 ocv_filter_deps="libopencv"
3421 openclsrc_filter_deps="opencl"
3422 overlay_opencl_filter_deps="opencl"
3423 overlay_qsv_filter_deps="libmfx"
3424 overlay_qsv_filter_select="qsvvpp"
3425 owdenoise_filter_deps="gpl"
3426 pan_filter_deps="swresample"
3427 perspective_filter_deps="gpl"
3428 phase_filter_deps="gpl"
3429 pp7_filter_deps="gpl"
3430 pp_filter_deps="gpl postproc"
3431 prewitt_opencl_filter_deps="opencl"
3432 procamp_vaapi_filter_deps="vaapi"
3433 program_opencl_filter_deps="opencl"
3434 pullup_filter_deps="gpl"
3435 removelogo_filter_deps="avcodec avformat swscale"
3436 repeatfields_filter_deps="gpl"
3437 resample_filter_deps="avresample"
3438 roberts_opencl_filter_deps="opencl"
3439 rubberband_filter_deps="librubberband"
3440 sab_filter_deps="gpl swscale"
3441 scale2ref_filter_deps="swscale"
3442 scale_filter_deps="swscale"
3443 scale_qsv_filter_deps="libmfx"
3444 select_filter_select="pixelutils"
3445 sharpness_vaapi_filter_deps="vaapi"
3446 showcqt_filter_deps="avcodec avformat swscale"
3447 showcqt_filter_suggest="libfontconfig libfreetype"
3448 showcqt_filter_select="fft"
3449 showfreqs_filter_deps="avcodec"
3450 showfreqs_filter_select="fft"
3451 showspectrum_filter_deps="avcodec"
3452 showspectrum_filter_select="fft"
3453 showspectrumpic_filter_deps="avcodec"
3454 showspectrumpic_filter_select="fft"
3455 signature_filter_deps="gpl avcodec avformat"
3456 smartblur_filter_deps="gpl swscale"
3457 sobel_opencl_filter_deps="opencl"
3458 sofalizer_filter_deps="libmysofa avcodec"
3459 sofalizer_filter_select="fft"
3460 spectrumsynth_filter_deps="avcodec"
3461 spectrumsynth_filter_select="fft"
3462 spp_filter_deps="gpl avcodec"
3463 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3464 sr_filter_deps="avformat swscale"
3465 sr_filter_select="dnn"
3466 stereo3d_filter_deps="gpl"
3467 subtitles_filter_deps="avformat avcodec libass"
3468 super2xsai_filter_deps="gpl"
3469 pixfmts_super2xsai_test_deps="super2xsai_filter"
3470 tinterlace_filter_deps="gpl"
3471 tinterlace_merge_test_deps="tinterlace_filter"
3472 tinterlace_pad_test_deps="tinterlace_filter"
3473 tonemap_filter_deps="const_nan"
3474 tonemap_opencl_filter_deps="opencl const_nan"
3475 unsharp_opencl_filter_deps="opencl"
3476 uspp_filter_deps="gpl avcodec"
3477 vaguedenoiser_filter_deps="gpl"
3478 vidstabdetect_filter_deps="libvidstab"
3479 vidstabtransform_filter_deps="libvidstab"
3480 libvmaf_filter_deps="libvmaf pthreads"
3481 zmq_filter_deps="libzmq"
3482 zoompan_filter_deps="swscale"
3483 zscale_filter_deps="libzimg const_nan"
3484 scale_vaapi_filter_deps="vaapi"
3485 vpp_qsv_filter_deps="libmfx"
3486 vpp_qsv_filter_select="qsvvpp"
3487 yadif_cuda_filter_deps="cuda_sdk"
3488
3489 # examples
3490 avio_dir_cmd_deps="avformat avutil"
3491 avio_reading_deps="avformat avcodec avutil"
3492 decode_audio_example_deps="avcodec avutil"
3493 decode_video_example_deps="avcodec avutil"
3494 demuxing_decoding_example_deps="avcodec avformat avutil"
3495 encode_audio_example_deps="avcodec avutil"
3496 encode_video_example_deps="avcodec avutil"
3497 extract_mvs_example_deps="avcodec avformat avutil"
3498 filter_audio_example_deps="avfilter avutil"
3499 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3500 filtering_video_example_deps="avfilter avcodec avformat avutil"
3501 http_multiclient_example_deps="avformat avutil fork"
3502 hw_decode_example_deps="avcodec avformat avutil"
3503 metadata_example_deps="avformat avutil"
3504 muxing_example_deps="avcodec avformat avutil swscale"
3505 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3506 remuxing_example_deps="avcodec avformat avutil"
3507 resampling_audio_example_deps="avutil swresample"
3508 scaling_video_example_deps="avutil swscale"
3509 transcode_aac_example_deps="avcodec avformat swresample"
3510 transcoding_example_deps="avfilter avcodec avformat avutil"
3511 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3512 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3513
3514 # EXTRALIBS_LIST
3515 cpu_init_extralibs="pthreads_extralibs"
3516 cws2fws_extralibs="zlib_extralibs"
3517
3518 # libraries, in any order
3519 avcodec_deps="avutil"
3520 avcodec_suggest="libm"
3521 avcodec_select="null_bsf"
3522 avdevice_deps="avformat avcodec avutil"
3523 avdevice_suggest="libm"
3524 avfilter_deps="avutil"
3525 avfilter_suggest="libm"
3526 avformat_deps="avcodec avutil"
3527 avformat_suggest="libm network zlib"
3528 avresample_deps="avutil"
3529 avresample_suggest="libm"
3530 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3531 postproc_deps="avutil gpl"
3532 postproc_suggest="libm"
3533 swresample_deps="avutil"
3534 swresample_suggest="libm libsoxr"
3535 swscale_deps="avutil"
3536 swscale_suggest="libm"
3537
3538 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3539 avfilter_extralibs="pthreads_extralibs"
3540 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3541
3542 # programs
3543 ffmpeg_deps="avcodec avfilter avformat"
3544 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3545                null_filter
3546                trim_filter"
3547 ffmpeg_suggest="ole32 psapi shell32"
3548 ffplay_deps="avcodec avformat swscale swresample sdl2"
3549 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3550 ffplay_suggest="shell32"
3551 ffprobe_deps="avcodec avformat"
3552 ffprobe_suggest="shell32"
3553
3554 # documentation
3555 podpages_deps="perl"
3556 manpages_deps="perl pod2man"
3557 htmlpages_deps="perl"
3558 htmlpages_deps_any="makeinfo_html texi2html"
3559 txtpages_deps="perl makeinfo"
3560 doc_deps_any="manpages htmlpages podpages txtpages"
3561
3562 # default parameters
3563
3564 logfile="ffbuild/config.log"
3565
3566 # installation paths
3567 prefix_default="/usr/local"
3568 bindir_default='${prefix}/bin'
3569 datadir_default='${prefix}/share/ffmpeg'
3570 docdir_default='${prefix}/share/doc/ffmpeg'
3571 incdir_default='${prefix}/include'
3572 libdir_default='${prefix}/lib'
3573 mandir_default='${prefix}/share/man'
3574
3575 # toolchain
3576 ar_default="ar"
3577 cc_default="gcc"
3578 cxx_default="g++"
3579 host_cc_default="gcc"
3580 doxygen_default="doxygen"
3581 install="install"
3582 ln_s_default="ln -s -f"
3583 nm_default="nm -g"
3584 pkg_config_default=pkg-config
3585 ranlib_default="ranlib"
3586 strip_default="strip"
3587 version_script='--version-script'
3588 objformat="elf32"
3589 x86asmexe_default="nasm"
3590 windres_default="windres"
3591 nvcc_default="nvcc"
3592 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3593 striptype="direct"
3594
3595 # OS
3596 target_os_default=$(tolower $(uname -s))
3597 host_os=$target_os_default
3598
3599 # machine
3600 if test "$target_os_default" = aix; then
3601     arch_default=$(uname -p)
3602     strip_default="strip -X32_64"
3603 else
3604     arch_default=$(uname -m)
3605 fi
3606 cpu="generic"
3607 intrinsics="none"
3608
3609 # configurable options
3610 enable $PROGRAM_LIST
3611 enable $DOCUMENT_LIST
3612 enable $EXAMPLE_LIST
3613 enable $(filter_out avresample $LIBRARY_LIST)
3614 enable stripping
3615
3616 enable asm
3617 enable debug
3618 enable doc
3619 enable faan faandct faanidct
3620 enable optimizations
3621 enable runtime_cpudetect
3622 enable safe_bitstream_reader
3623 enable static
3624 enable swscale_alpha
3625 enable valgrind_backtrace
3626
3627 sws_max_filter_size_default=256
3628 set_default sws_max_filter_size
3629
3630 # internal components are enabled by default
3631 enable $EXTRALIBS_LIST
3632
3633 # Avoid external, non-system, libraries getting enabled by dependency resolution
3634 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3635
3636 # build settings
3637 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3638 LIBPREF="lib"
3639 LIBSUF=".a"
3640 FULLNAME='$(NAME)$(BUILDSUF)'
3641 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3642 SLIBPREF="lib"
3643 SLIBSUF=".so"
3644 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3645 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3646 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3647 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3648 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3649 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3650 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3651
3652 asflags_filter=echo
3653 cflags_filter=echo
3654 ldflags_filter=echo
3655
3656 AS_C='-c'
3657 AS_O='-o $@'
3658 CC_C='-c'
3659 CC_E='-E -o $@'
3660 CC_O='-o $@'
3661 CXX_C='-c'
3662 CXX_O='-o $@'
3663 OBJCC_C='-c'
3664 OBJCC_E='-E -o $@'
3665 OBJCC_O='-o $@'
3666 X86ASM_O='-o $@'
3667 LD_O='-o $@'
3668 LD_LIB='-l%'
3669 LD_PATH='-L'
3670 HOSTCC_C='-c'
3671 HOSTCC_E='-E -o $@'
3672 HOSTCC_O='-o $@'
3673 HOSTLD_O='-o $@'
3674 NVCC_C='-c'
3675 NVCC_O='-o $@'
3676
3677 host_extralibs='-lm'
3678 host_cflags_filter=echo
3679 host_ldflags_filter=echo
3680
3681 target_path='$(CURDIR)'
3682
3683 # since the object filename is not given with the -MM flag, the compiler
3684 # is only able to print the basename, and we must add the path ourselves
3685 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3686 DEPFLAGS='-MM'
3687
3688 mkdir -p ffbuild
3689
3690 # find source path
3691 if test -f configure; then
3692     source_path=.
3693 else
3694     source_path=$(cd $(dirname "$0"); pwd)
3695     case "$source_path" in
3696         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3697     esac
3698     test -e "$source_path/config.h" &&
3699         die "Out of tree builds are impossible with config.h in source dir."
3700 fi
3701
3702 for v in "$@"; do
3703     r=${v#*=}
3704     l=${v%"$r"}
3705     r=$(sh_quote "$r")
3706     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3707 done
3708
3709 find_things_extern(){
3710     thing=$1
3711     pattern=$2
3712     file=$source_path/$3
3713     out=${4:-$thing}
3714     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3715 }
3716
3717 find_filters_extern(){
3718     file=$source_path/$1
3719     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file
3720     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file
3721 }
3722
3723 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3724 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3725 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3726 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3727 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3728 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3729 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3730 CODEC_LIST="
3731     $ENCODER_LIST
3732     $DECODER_LIST
3733 "
3734 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3735 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3736 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3737 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3738
3739 AVCODEC_COMPONENTS_LIST="
3740     $BSF_LIST
3741     $DECODER_LIST
3742     $ENCODER_LIST
3743     $HWACCEL_LIST
3744     $PARSER_LIST
3745 "
3746
3747 AVDEVICE_COMPONENTS_LIST="
3748     $INDEV_LIST
3749     $OUTDEV_LIST
3750 "
3751
3752 AVFILTER_COMPONENTS_LIST="
3753     $FILTER_LIST
3754 "
3755
3756 AVFORMAT_COMPONENTS_LIST="
3757     $DEMUXER_LIST
3758     $MUXER_LIST
3759     $PROTOCOL_LIST
3760 "
3761
3762 ALL_COMPONENTS="
3763     $AVCODEC_COMPONENTS_LIST
3764     $AVDEVICE_COMPONENTS_LIST
3765     $AVFILTER_COMPONENTS_LIST
3766     $AVFORMAT_COMPONENTS_LIST
3767 "
3768
3769 for n in $COMPONENT_LIST; do
3770     v=$(toupper ${n%s})_LIST
3771     eval enable \$$v
3772     eval ${n}_if_any="\$$v"
3773 done
3774
3775 enable $ARCH_EXT_LIST
3776
3777 die_unknown(){
3778     echo "Unknown option \"$1\"."
3779     echo "See $0 --help for available options."
3780     exit 1
3781 }
3782
3783 print_in_columns() {
3784     cols=$(expr $ncols / 24)
3785     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3786 }
3787
3788 show_list() {
3789     suffix=_$1
3790     shift
3791     echo $* | sed s/$suffix//g | print_in_columns
3792     exit 0
3793 }
3794
3795 rand_list(){
3796     IFS=', '
3797     set -- $*
3798     unset IFS
3799     for thing; do
3800         comp=${thing%:*}
3801         prob=${thing#$comp}
3802         prob=${prob#:}
3803         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3804         echo "prob ${prob:-0.5}"
3805         printf '%s\n' $comp
3806     done
3807 }
3808
3809 do_random(){
3810     action=$1
3811     shift
3812     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3813     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3814 }
3815
3816 for opt do
3817     optval="${opt#*=}"
3818     case "$opt" in
3819         --extra-ldflags=*)
3820             add_ldflags $optval
3821         ;;
3822         --extra-ldexeflags=*)
3823             add_ldexeflags $optval
3824         ;;
3825         --extra-ldsoflags=*)
3826             add_ldsoflags $optval
3827         ;;
3828         --extra-ldlibflags=*)
3829             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3830                  "removed in the future. Use --extra-ldsoflags instead."
3831             add_ldsoflags $optval
3832         ;;
3833         --extra-libs=*)
3834             add_extralibs $optval
3835         ;;
3836         --disable-devices)
3837             disable $INDEV_LIST $OUTDEV_LIST
3838         ;;
3839         --enable-debug=*)
3840             debuglevel="$optval"
3841         ;;
3842         --disable-programs)
3843             disable $PROGRAM_LIST
3844         ;;
3845         --disable-everything)
3846             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3847         ;;
3848         --disable-all)
3849             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3850             disable $LIBRARY_LIST $PROGRAM_LIST doc
3851             enable avutil
3852         ;;
3853         --enable-random|--disable-random)
3854             action=${opt%%-random}
3855             do_random ${action#--} $COMPONENT_LIST
3856         ;;
3857         --enable-random=*|--disable-random=*)
3858             action=${opt%%-random=*}
3859             do_random ${action#--} $optval
3860         ;;
3861         --enable-sdl)
3862             enable sdl2
3863         ;;
3864         --enable-*=*|--disable-*=*)
3865             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3866             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3867             eval list=\$$(toupper $thing)_LIST
3868             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3869             list=$(filter "$name" $list)
3870             [ "$list" = "" ] && warn "Option $opt did not match anything"
3871             $action $list
3872         ;;
3873         --enable-yasm|--disable-yasm)
3874             warn "The ${opt} option is only provided for compatibility and will be\n"\
3875                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3876             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3877         ;;
3878         --yasmexe=*)
3879             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3880                  "removed in the future. Use --x86asmexe instead."
3881             x86asmexe="$optval"
3882         ;;
3883         --enable-?*|--disable-?*)
3884             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3885             if is_in $option $COMPONENT_LIST; then
3886                 test $action = disable && action=unset
3887                 eval $action \$$(toupper ${option%s})_LIST
3888             elif is_in $option $CMDLINE_SELECT; then
3889                 $action $option
3890             else
3891                 die_unknown $opt
3892             fi
3893         ;;
3894         --list-*)
3895             NAME="${opt#--list-}"
3896             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3897             NAME=${NAME%s}
3898             eval show_list $NAME \$$(toupper $NAME)_LIST
3899         ;;
3900         --help|-h) show_help
3901         ;;
3902         --quiet|-q) quiet=yes
3903         ;;
3904         --fatal-warnings) enable fatal_warnings
3905         ;;
3906         --libfuzzer=*)
3907             libfuzzer_path="$optval"
3908         ;;
3909         *)
3910             optname="${opt%%=*}"
3911             optname="${optname#--}"
3912             optname=$(echo "$optname" | sed 's/-/_/g')
3913             if is_in $optname $CMDLINE_SET; then
3914                 eval $optname='$optval'
3915             elif is_in $optname $CMDLINE_APPEND; then
3916                 append $optname "$optval"
3917             else
3918                 die_unknown $opt
3919             fi
3920         ;;
3921     esac
3922 done
3923
3924 for e in $env; do
3925     eval "export $e"
3926 done
3927
3928 if disabled autodetect; then
3929
3930     # Unless iconv is explicitely disabled by the user, we still want to probe
3931     # for the iconv from the libc.
3932     disabled iconv || enable libc_iconv
3933
3934     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3935     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3936 fi
3937 # Mark specifically enabled, but normally autodetected libraries as requested.
3938 for lib in $AUTODETECT_LIBS; do
3939     enabled $lib && request $lib
3940 done
3941 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3942 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3943 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3944
3945 disabled logging && logfile=/dev/null
3946
3947 # command line configuration sanity checks
3948
3949 # we need to build at least one lib type
3950 if ! enabled_any static shared; then
3951     cat <<EOF
3952 At least one library type must be built.
3953 Specify --enable-static to build the static libraries or --enable-shared to
3954 build the shared libraries as well. To only build the shared libraries specify
3955 --disable-static in addition to --enable-shared.
3956 EOF
3957     exit 1
3958 fi
3959
3960 die_license_disabled() {
3961     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3962 }
3963
3964 die_license_disabled_gpl() {
3965     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3966 }
3967
3968 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3969 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3970
3971 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3972 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3973
3974 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3975
3976 if enabled nonfree; then
3977     license="nonfree and unredistributable"
3978 elif enabled gplv3; then
3979     license="GPL version 3 or later"
3980 elif enabled lgplv3; then
3981     license="LGPL version 3 or later"
3982 elif enabled gpl; then
3983     license="GPL version 2 or later"
3984 else
3985     license="LGPL version 2.1 or later"
3986 fi
3987
3988 enabled_all gnutls openssl &&
3989     die "GnuTLS and OpenSSL must not be enabled at the same time."
3990
3991 enabled_all gnutls mbedtls &&
3992     die "GnuTLS and mbedTLS must not be enabled at the same time."
3993
3994 enabled_all openssl mbedtls &&
3995     die "OpenSSL and mbedTLS must not be enabled at the same time."
3996
3997 # Disable all the library-specific components if the library itself
3998 # is disabled, see AVCODEC_LIST and following _LIST variables.
3999
4000 disable_components(){
4001     disabled ${1} && disable $(
4002         eval components="\$$(toupper ${1})_COMPONENTS"
4003         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
4004     )
4005 }
4006
4007 map 'disable_components $v' $LIBRARY_LIST
4008
4009 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
4010 set >> $logfile
4011
4012 test -n "$valgrind" && toolchain="valgrind-memcheck"
4013
4014 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4015     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4016     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4017 }
4018
4019 case "$toolchain" in
4020     *-asan)
4021         cc_default="${toolchain%-asan}"
4022         add_cflags  -fsanitize=address
4023         add_ldflags -fsanitize=address
4024     ;;
4025     *-msan)
4026         cc_default="${toolchain%-msan}"
4027         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4028         add_ldflags -fsanitize=memory
4029     ;;
4030     *-tsan)
4031         cc_default="${toolchain%-tsan}"
4032         add_cflags  -fsanitize=thread
4033         add_ldflags -fsanitize=thread
4034         case "$toolchain" in
4035             gcc-tsan)
4036                 add_cflags  -fPIC
4037                 add_ldflags -fPIC
4038                 ;;
4039         esac
4040     ;;
4041     *-usan)
4042         cc_default="${toolchain%-usan}"
4043         add_cflags  -fsanitize=undefined
4044         add_ldflags -fsanitize=undefined
4045     ;;
4046     valgrind-*)
4047         target_exec_default="valgrind"
4048         case "$toolchain" in
4049             valgrind-massif)
4050                 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"
4051                 ;;
4052             valgrind-memcheck)
4053                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4054                 ;;
4055         esac
4056     ;;
4057     msvc)
4058         # Check whether the current MSVC version needs the C99 converter.
4059         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4060         # support enough of C99 to build ffmpeg. Default to the new
4061         # behaviour if the regexp was unable to match anything, since this
4062         # successfully parses the version number of existing supported
4063         # versions that require the converter (MSVC 2010 and 2012).
4064         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4065         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4066             cc_default="cl"
4067             cxx_default="cl"
4068         else
4069             die "Unsupported MSVC version (2013 or newer required)"
4070         fi
4071         ld_default="$source_path/compat/windows/mslink"
4072         nm_default="dumpbin -symbols"
4073         ar_default="lib"
4074         case "$arch" in
4075         aarch64|arm64)
4076             as_default="armasm64"
4077             ;;
4078         arm*)
4079             as_default="armasm"
4080             ;;
4081         esac
4082         target_os_default="win32"
4083         # Use a relative path for TMPDIR. This makes sure all the
4084         # ffconf temp files are written with a relative path, avoiding
4085         # issues with msys/win32 path conversion for MSVC parameters
4086         # such as -Fo<file> or -out:<file>.
4087         TMPDIR=.
4088     ;;
4089     icl)
4090         cc_default="icl"
4091         ld_default="xilink"
4092         nm_default="dumpbin -symbols"
4093         ar_default="xilib"
4094         target_os_default="win32"
4095         TMPDIR=.
4096     ;;
4097     gcov)
4098         add_cflags  -fprofile-arcs -ftest-coverage
4099         add_ldflags -fprofile-arcs -ftest-coverage
4100     ;;
4101     llvm-cov)
4102         add_cflags -fprofile-arcs -ftest-coverage
4103         add_ldflags --coverage
4104     ;;
4105     hardened)
4106         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4107         add_cflags   -fno-strict-overflow -fstack-protector-all
4108         add_ldflags  -Wl,-z,relro -Wl,-z,now
4109         add_cflags   -fPIE
4110         add_ldexeflags -fPIE -pie
4111     ;;
4112     ?*)
4113         die "Unknown toolchain $toolchain"
4114     ;;
4115 esac
4116
4117 if test -n "$cross_prefix"; then
4118     test -n "$arch" && test -n "$target_os" ||
4119         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4120     enable cross_compile
4121 fi
4122
4123 ar_default="${cross_prefix}${ar_default}"
4124 cc_default="${cross_prefix}${cc_default}"
4125 cxx_default="${cross_prefix}${cxx_default}"
4126 nm_default="${cross_prefix}${nm_default}"
4127 pkg_config_default="${cross_prefix}${pkg_config_default}"
4128 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4129     ranlib_default="${cross_prefix}${ranlib_default} -D"
4130 else
4131     ranlib_default="${cross_prefix}${ranlib_default}"
4132 fi
4133 strip_default="${cross_prefix}${strip_default}"
4134 windres_default="${cross_prefix}${windres_default}"
4135
4136 sysinclude_default="${sysroot}/usr/include"
4137
4138 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4139     target_exec target_os x86asmexe nvcc
4140 enabled cross_compile || host_cc_default=$cc
4141 set_default host_cc
4142
4143 pkg_config_fail_message=""
4144 if ! $pkg_config --version >/dev/null 2>&1; then
4145     warn "$pkg_config not found, library detection may fail."
4146     pkg_config=false
4147 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4148     pkg_config_fail_message="
4149 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4150 fi
4151
4152 if test $doxygen != $doxygen_default && \
4153   ! $doxygen --version >/dev/null 2>&1; then
4154     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4155 fi
4156
4157 exesuf() {
4158     case $1 in
4159         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4160     esac
4161 }
4162
4163 EXESUF=$(exesuf $target_os)
4164 HOSTEXESUF=$(exesuf $host_os)
4165
4166 # set temporary file name
4167 : ${TMPDIR:=$TEMPDIR}
4168 : ${TMPDIR:=$TMP}
4169 : ${TMPDIR:=/tmp}
4170
4171 if [ -n "$tempprefix" ] ; then
4172     mktemp(){
4173         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4174         echo "$tmpname"
4175         mkdir "$tmpname"
4176     }
4177 elif ! test_cmd mktemp -u XXXXXX; then
4178     # simple replacement for missing mktemp
4179     # NOT SAFE FOR GENERAL USE
4180     mktemp(){
4181         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4182         echo "$tmpname"
4183         mkdir "$tmpname"
4184     }
4185 fi
4186
4187 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4188     die "Unable to create temporary directory in $TMPDIR."
4189
4190 tmpfile(){
4191     tmp="${FFTMPDIR}/test"$2
4192     (set -C; exec > $tmp) 2> /dev/null ||
4193         die "Unable to create temporary file in $FFTMPDIR."
4194     eval $1=$tmp
4195 }
4196
4197 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4198 trap 'exit 2' INT
4199
4200 tmpfile TMPASM .asm
4201 tmpfile TMPC   .c
4202 tmpfile TMPCPP .cpp
4203 tmpfile TMPE   $EXESUF
4204 tmpfile TMPH   .h
4205 tmpfile TMPM   .m
4206 tmpfile TMPO   .o
4207 tmpfile TMPS   .S
4208 tmpfile TMPSH  .sh
4209 tmpfile TMPV   .ver
4210
4211 unset -f mktemp
4212
4213 chmod +x $TMPE
4214
4215 # make sure we can execute files in $TMPDIR
4216 cat > $TMPSH 2>> $logfile <<EOF
4217 #! /bin/sh
4218 EOF
4219 chmod +x $TMPSH >> $logfile 2>&1
4220 if ! $TMPSH >> $logfile 2>&1; then
4221     cat <<EOF
4222 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4223 variable to another directory and make sure that it is not mounted noexec.
4224 EOF
4225     die "Sanity test failed."
4226 fi
4227
4228 armasm_flags(){
4229     for flag; do
4230         case $flag in
4231             # Filter out MSVC cl.exe options from cflags that shouldn't
4232             # be passed to gas-preprocessor
4233             -M[TD]*)                                            ;;
4234             *)                  echo $flag                      ;;
4235         esac
4236    done
4237 }
4238
4239 cparser_flags(){
4240     for flag; do
4241         case $flag in
4242             -Wno-switch)             echo -Wno-switch-enum ;;
4243             -Wno-format-zero-length) ;;
4244             -Wdisabled-optimization) ;;
4245             -Wno-pointer-sign)       echo -Wno-other ;;
4246             *)                       echo $flag ;;
4247         esac
4248     done
4249 }
4250
4251 msvc_common_flags(){
4252     for flag; do
4253         case $flag in
4254             # In addition to specifying certain flags under the compiler
4255             # specific filters, they must be specified here as well or else the
4256             # generic catch all at the bottom will print the original flag.
4257             -Wall)                ;;
4258             -Wextra)              ;;
4259             -std=c99)             ;;
4260             # Common flags
4261             -fomit-frame-pointer) ;;
4262             -g)                   echo -Z7 ;;
4263             -fno-math-errno)      ;;
4264             -fno-common)          ;;
4265             -fno-signed-zeros)    ;;
4266             -fPIC)                ;;
4267             -mthumb)              ;;
4268             -march=*)             ;;
4269             -lz)                  echo zlib.lib ;;
4270             -lx264)               echo libx264.lib ;;
4271             -lstdc++)             ;;
4272             -l*)                  echo ${flag#-l}.lib ;;
4273             -LARGEADDRESSAWARE)   echo $flag ;;
4274             -L*)                  echo -libpath:${flag#-L} ;;
4275             *)                    echo $flag ;;
4276         esac
4277     done
4278 }
4279
4280 msvc_flags(){
4281     msvc_common_flags "$@"
4282     for flag; do
4283         case $flag in
4284             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4285                                        -wd4554 ;;
4286             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4287                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4288                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4289                                        -wd4307 \
4290                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4291         esac
4292     done
4293 }
4294
4295 icl_flags(){
4296     msvc_common_flags "$@"
4297     for flag; do
4298         case $flag in
4299             # Despite what Intel's documentation says -Wall, which is supported
4300             # on Windows, does enable remarks so disable them here.
4301             -Wall)                echo $flag -Qdiag-disable:remark ;;
4302             -std=c99)             echo -Qstd=c99 ;;
4303             -flto)                echo -ipo ;;
4304         esac
4305     done
4306 }
4307
4308 icc_flags(){
4309     for flag; do
4310         case $flag in
4311             -flto)                echo -ipo ;;
4312             *)                    echo $flag ;;
4313         esac
4314     done
4315 }
4316
4317 suncc_flags(){
4318     for flag; do
4319         case $flag in
4320             -march=*|-mcpu=*)
4321                 case "${flag#*=}" in
4322                     native)                   echo -xtarget=native       ;;
4323                     v9|niagara)               echo -xarch=sparc          ;;
4324                     ultrasparc)               echo -xarch=sparcvis       ;;
4325                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4326                     i586|pentium)             echo -xchip=pentium        ;;
4327                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4328                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4329                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4330                     pentium4*)          echo -xtarget=pentium4           ;;
4331                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4332                     *-sse3)             echo -xarch=sse3                 ;;
4333                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4334                     bonnell)                   echo -xarch=ssse3         ;;
4335                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4336                     westmere)                  echo -xtarget=westmere    ;;
4337                     silvermont)                echo -xarch=sse4_2        ;;
4338                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4339                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4340                                                echo -xarch=avx           ;;
4341                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4342                     btver1)                    echo -xarch=amdsse4a      ;;
4343                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4344                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4345                     k8|opteron|athlon64|athlon-fx)
4346                                                echo -xarch=sse2a         ;;
4347                     athlon*)                   echo -xarch=pentium_proa  ;;
4348                 esac
4349                 ;;
4350             -std=c99)             echo -xc99              ;;
4351             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4352             -fPIC)                echo -KPIC -xcode=pic32 ;;
4353             -W*,*)                echo $flag              ;;
4354             -f*-*|-W*|-mimpure-text)                      ;;
4355             -shared)              echo -G                 ;;
4356             *)                    echo $flag              ;;
4357         esac
4358     done
4359 }
4360
4361 probe_cc(){
4362     pfx=$1
4363     _cc=$2
4364     first=$3
4365
4366     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4367     unset _ld_o _ldflags _ld_lib _ld_path
4368     unset _depflags _DEPCMD _DEPFLAGS
4369     _flags_filter=echo
4370
4371     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4372         true # no-op to avoid reading stdin in following checks
4373     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4374         _type=llvm_gcc
4375         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4376         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4377         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4378         _cflags_speed='-O3'
4379         _cflags_size='-Os'
4380     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4381         _type=gcc
4382         gcc_version=$($_cc --version | head -n1)
4383         gcc_basever=$($_cc -dumpversion)
4384         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4385         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4386         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4387         case $gcc_basever in
4388             2) ;;
4389             2.*) ;;
4390             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4391         esac
4392         if [ "$first" = true ]; then
4393             case $gcc_basever in
4394                 4.2*)
4395                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4396             esac
4397         fi
4398         _cflags_speed='-O3'
4399         _cflags_size='-Os'
4400     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4401         _type=icc
4402         _ident=$($_cc --version | head -n1)
4403         _depflags='-MMD'
4404         _cflags_speed='-O3'
4405         _cflags_size='-Os'
4406         _cflags_noopt='-O1'
4407         _flags_filter=icc_flags
4408     elif $_cc -v 2>&1 | grep -q xlc; then
4409         _type=xlc
4410         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4411         _cflags_speed='-O5'
4412         _cflags_size='-O5 -qcompact'
4413     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4414         test -d "$sysroot" || die "No valid sysroot specified."
4415         _type=armcc
4416         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4417         armcc_conf="$PWD/armcc.conf"
4418         $_cc --arm_linux_configure                 \
4419              --arm_linux_config_file="$armcc_conf" \
4420              --configure_sysroot="$sysroot"        \
4421              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4422              die "Error creating armcc configuration file."
4423         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4424         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4425         as_default="${cross_prefix}gcc"
4426         _depflags='-MMD'
4427         _cflags_speed='-O3'
4428         _cflags_size='-Os'
4429     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4430         _type=clang
4431         _ident=$($_cc --version 2>/dev/null | head -n1)
4432         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4433         _cflags_speed='-O3'
4434         _cflags_size='-Oz'
4435     elif $_cc -V 2>&1 | grep -q Sun; then
4436         _type=suncc
4437         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4438         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4439         _DEPFLAGS='-xM1 -xc99'
4440         _ldflags='-std=c99'
4441         _cflags_speed='-O5'
4442         _cflags_size='-O5 -xspace'
4443         _flags_filter=suncc_flags
4444     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4445         _type=pathscale
4446         _ident=$($_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'
4451     elif $_cc -v 2>&1 | grep -q Open64; then
4452         _type=open64
4453         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4454         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4455         _cflags_speed='-O2'
4456         _cflags_size='-Os'
4457         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4458     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4459         _type=armasm
4460         _ident=$($_cc | head -n1)
4461         # 4509: "This form of conditional instruction is deprecated"
4462         _flags="-nologo -ignore 4509"
4463         _flags_filter=armasm_flags
4464     elif $_cc 2>&1 | grep -q Intel; then
4465         _type=icl
4466         _ident=$($_cc 2>&1 | head -n1)
4467         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4468         # Not only is O3 broken on 13.x+ but it is slower on all previous
4469         # versions (tested) as well.
4470         _cflags_speed="-O2"
4471         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4472         if $_cc 2>&1 | grep -q Linker; then
4473             _ld_o='-out:$@'
4474         else
4475             _ld_o='-Fe$@'
4476         fi
4477         _cc_o='-Fo$@'
4478         _cc_e='-P'
4479         _flags_filter=icl_flags
4480         _ld_lib='lib%.a'
4481         _ld_path='-libpath:'
4482         # -Qdiag-error to make icl error when seeing certain unknown arguments
4483         _flags='-nologo -Qdiag-error:4044,10157'
4484         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4485         # with MSVC which enables it by default.
4486         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4487         disable stripping
4488     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4489         # lld can emulate multiple different linkers; in ms link.exe mode,
4490         # the -? parameter gives the help output which contains an identifyable
4491         # string, while it gives an error in other modes.
4492         _type=lld-link
4493         # The link.exe mode doesn't have a switch for getting the version,
4494         # but we can force it back to gnu mode and get the version from there.
4495         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4496         _ld_o='-out:$@'
4497         _flags_filter=msvc_flags
4498         _ld_lib='lib%.a'
4499         _ld_path='-libpath:'
4500     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4501         _type=msvc
4502         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4503         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4504         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4505         _cflags_speed="-O2"
4506         _cflags_size="-O1"
4507         _cflags_noopt="-O1"
4508         if $_cc -nologo- 2>&1 | grep -q Linker; then
4509             _ld_o='-out:$@'
4510         else
4511             _ld_o='-Fe$@'
4512         fi
4513         _cc_o='-Fo$@'
4514         _cc_e='-P -Fi$@'
4515         _flags_filter=msvc_flags
4516         _ld_lib='lib%.a'
4517         _ld_path='-libpath:'
4518         _flags='-nologo'
4519         disable stripping
4520     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4521         _type=cparser
4522         _ident=$($_cc --version | head -n1)
4523         _depflags='-MMD'
4524         _cflags_speed='-O4'
4525         _cflags_size='-O2'
4526         _flags_filter=cparser_flags
4527     fi
4528
4529     eval ${pfx}_type=\$_type
4530     eval ${pfx}_ident=\$_ident
4531 }
4532
4533 set_ccvars(){
4534     eval ${1}_C=\${_cc_c-\${${1}_C}}
4535     eval ${1}_E=\${_cc_e-\${${1}_E}}
4536     eval ${1}_O=\${_cc_o-\${${1}_O}}
4537
4538     if [ -n "$_depflags" ]; then
4539         eval ${1}_DEPFLAGS=\$_depflags
4540     else
4541         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4542         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4543         eval DEP${1}FLAGS=\$_flags
4544     fi
4545 }
4546
4547 probe_cc cc "$cc" "true"
4548 cflags_filter=$_flags_filter
4549 cflags_speed=$_cflags_speed
4550 cflags_size=$_cflags_size
4551 cflags_noopt=$_cflags_noopt
4552 add_cflags $_flags $_cflags
4553 cc_ldflags=$_ldflags
4554 set_ccvars CC
4555 set_ccvars CXX
4556
4557 probe_cc hostcc "$host_cc"
4558 host_cflags_filter=$_flags_filter
4559 host_cflags_speed=$_cflags_speed
4560 add_host_cflags  $_flags $_cflags
4561 set_ccvars HOSTCC
4562
4563 test -n "$cc_type" && enable $cc_type ||
4564     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4565
4566 : ${as_default:=$cc}
4567 : ${objcc_default:=$cc}
4568 : ${dep_cc_default:=$cc}
4569 : ${ld_default:=$cc}
4570 : ${host_ld_default:=$host_cc}
4571 set_default ar as objcc dep_cc ld ln_s host_ld windres
4572
4573 probe_cc as "$as"
4574 asflags_filter=$_flags_filter
4575 add_asflags $_flags $_cflags
4576 set_ccvars AS
4577
4578 probe_cc objcc "$objcc"
4579 objcflags_filter=$_flags_filter
4580 add_objcflags $_flags $_cflags
4581 set_ccvars OBJC
4582
4583 probe_cc ld "$ld"
4584 ldflags_filter=$_flags_filter
4585 add_ldflags $_flags $_ldflags
4586 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4587 LD_O=${_ld_o-$LD_O}
4588 LD_LIB=${_ld_lib-$LD_LIB}
4589 LD_PATH=${_ld_path-$LD_PATH}
4590
4591 probe_cc hostld "$host_ld"
4592 host_ldflags_filter=$_flags_filter
4593 add_host_ldflags $_flags $_ldflags
4594 HOSTLD_O=${_ld_o-$HOSTLD_O}
4595
4596 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4597     probe_cc depcc "$dep_cc"
4598     CCDEP=${_DEPCMD:-$DEPCMD}
4599     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4600     DEPCCFLAGS=$_flags
4601 fi
4602
4603 if $ar 2>&1 | grep -q Microsoft; then
4604     arflags="-nologo"
4605     ar_o='-out:$@'
4606 elif $ar 2>&1 | grep -q "\[D\] "; then
4607     arflags="rcD"
4608     ar_o='$@'
4609 else
4610     arflags="rc"
4611     ar_o='$@'
4612 fi
4613
4614 add_cflags $extra_cflags
4615 add_cxxflags $extra_cxxflags
4616 add_objcflags $extra_objcflags
4617 add_asflags $extra_cflags
4618
4619 if test -n "$sysroot"; then
4620     case "$cc_type" in
4621         gcc|llvm_gcc|clang)
4622             add_cppflags --sysroot="$sysroot"
4623             add_ldflags --sysroot="$sysroot"
4624         ;;
4625     esac
4626 fi
4627
4628 if test "$cpu" = host; then
4629     enabled cross_compile &&
4630         die "--cpu=host makes no sense when cross-compiling."
4631
4632     case "$cc_type" in
4633         gcc|llvm_gcc)
4634             check_native(){
4635                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4636                 sed -n "/cc1.*$1=/{
4637                             s/.*$1=\\([^ ]*\\).*/\\1/
4638                             p
4639                             q
4640                         }" $TMPE
4641             }
4642             cpu=$(check_native -march || check_native -mcpu)
4643         ;;
4644         clang)
4645             check_native(){
4646                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4647                 sed -n "/cc1.*-target-cpu /{
4648                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4649                             p
4650                             q
4651                         }" $TMPE
4652             }
4653             cpu=$(check_native -march)
4654         ;;
4655     esac
4656
4657     test "${cpu:-host}" = host &&
4658         die "--cpu=host not supported with compiler $cc"
4659 fi
4660
4661 # Deal with common $arch aliases
4662 case "$arch" in
4663     aarch64|arm64)
4664         arch="aarch64"
4665     ;;
4666     arm*|iPad*|iPhone*)
4667         arch="arm"
4668     ;;
4669     mips*|IP*)
4670         case "$arch" in
4671         *el)
4672             add_cppflags -EL
4673             add_ldflags -EL
4674         ;;
4675         *eb)
4676             add_cppflags -EB
4677             add_ldflags -EB
4678         ;;
4679         esac
4680         arch="mips"
4681     ;;
4682     parisc*|hppa*)
4683         arch="parisc"
4684     ;;
4685     "Power Macintosh"|ppc*|powerpc*)
4686         arch="ppc"
4687     ;;
4688     s390|s390x)
4689         arch="s390"
4690     ;;
4691     sh4|sh)
4692         arch="sh4"
4693     ;;
4694     sun4*|sparc*)
4695         arch="sparc"
4696     ;;
4697     tilegx|tile-gx)
4698         arch="tilegx"
4699     ;;
4700     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4701         arch="x86"
4702     ;;
4703 esac
4704
4705 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4706 enable $arch
4707
4708 # Add processor-specific flags
4709 if enabled aarch64; then
4710
4711     case $cpu in
4712         armv*)
4713             cpuflags="-march=$cpu"
4714         ;;
4715         *)
4716             cpuflags="-mcpu=$cpu"
4717         ;;
4718     esac
4719
4720 elif enabled alpha; then
4721
4722     cpuflags="-mcpu=$cpu"
4723
4724 elif enabled arm; then
4725
4726     check_arm_arch() {
4727         test_cpp_condition stddef.h \
4728             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4729             $cpuflags
4730     }
4731
4732     probe_arm_arch() {
4733         if   check_arm_arch 4;        then echo armv4
4734         elif check_arm_arch 4T;       then echo armv4t
4735         elif check_arm_arch 5;        then echo armv5
4736         elif check_arm_arch 5E;       then echo armv5e
4737         elif check_arm_arch 5T;       then echo armv5t
4738         elif check_arm_arch 5TE;      then echo armv5te
4739         elif check_arm_arch 5TEJ;     then echo armv5te
4740         elif check_arm_arch 6;        then echo armv6
4741         elif check_arm_arch 6J;       then echo armv6j
4742         elif check_arm_arch 6K;       then echo armv6k
4743         elif check_arm_arch 6Z;       then echo armv6z
4744         elif check_arm_arch 6KZ;      then echo armv6zk
4745         elif check_arm_arch 6ZK;      then echo armv6zk
4746         elif check_arm_arch 6T2;      then echo armv6t2
4747         elif check_arm_arch 7;        then echo armv7
4748         elif check_arm_arch 7A  7_A;  then echo armv7-a
4749         elif check_arm_arch 7S;       then echo armv7-a
4750         elif check_arm_arch 7R  7_R;  then echo armv7-r
4751         elif check_arm_arch 7M  7_M;  then echo armv7-m
4752         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4753         elif check_arm_arch 8A  8_A;  then echo armv8-a
4754         fi
4755     }
4756
4757     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4758
4759     case $cpu in
4760         armv*)
4761             cpuflags="-march=$cpu"
4762             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4763         ;;
4764         *)
4765             cpuflags="-mcpu=$cpu"
4766             case $cpu in
4767                 cortex-a*)                               subarch=armv7a  ;;
4768                 cortex-r*)                               subarch=armv7r  ;;
4769                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4770                 arm11*)                                  subarch=armv6   ;;
4771                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4772                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4773                 *)                             subarch=$(probe_arm_arch) ;;
4774             esac
4775         ;;
4776     esac
4777
4778     case "$subarch" in
4779         armv5t*)    enable fast_clz                ;;
4780         armv[6-8]*)
4781             enable fast_clz
4782             disabled fast_unaligned || enable fast_unaligned
4783             ;;
4784     esac
4785
4786 elif enabled avr32; then
4787
4788     case $cpu in
4789         ap7[02]0[0-2])
4790             subarch="avr32_ap"
4791             cpuflags="-mpart=$cpu"
4792         ;;
4793         ap)
4794             subarch="avr32_ap"
4795             cpuflags="-march=$cpu"
4796         ;;
4797         uc3[ab]*)
4798             subarch="avr32_uc"
4799             cpuflags="-mcpu=$cpu"
4800         ;;
4801         uc)
4802             subarch="avr32_uc"
4803             cpuflags="-march=$cpu"
4804         ;;
4805     esac
4806
4807 elif enabled bfin; then
4808
4809     cpuflags="-mcpu=$cpu"
4810
4811 elif enabled mips; then
4812
4813     cpuflags="-march=$cpu"
4814
4815     if [ "$cpu" != "generic" ]; then
4816         disable mips32r2
4817         disable mips32r5
4818         disable mips64r2
4819         disable mips32r6
4820         disable mips64r6
4821         disable loongson2
4822         disable loongson3
4823
4824         case $cpu in
4825             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4826                 enable mips32r2
4827                 disable msa
4828             ;;
4829             p5600|i6400|p6600)
4830                 disable mipsdsp
4831                 disable mipsdspr2
4832             ;;
4833             loongson*)
4834                 enable loongson2
4835                 enable loongson3
4836                 enable local_aligned
4837                 enable simd_align_16
4838                 enable fast_64bit
4839                 enable fast_clz
4840                 enable fast_cmov
4841                 enable fast_unaligned
4842                 disable aligned_stack
4843                 disable mipsfpu
4844                 disable mipsdsp
4845                 disable mipsdspr2
4846                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4847                 if [ $cc == gcc ]; then
4848                     gcc_version=$(gcc -dumpversion)
4849                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4850                         expensive_optimization_flag=""
4851                     else
4852                         expensive_optimization_flag="-fno-expensive-optimizations"
4853                     fi
4854                 fi
4855                 case $cpu in
4856                     loongson3*)
4857                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4858                     ;;
4859                     loongson2e)
4860                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4861                     ;;
4862                     loongson2f)
4863                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4864                     ;;
4865                 esac
4866             ;;
4867             *)
4868                 # Unknown CPU. Disable everything.
4869                 warn "unknown CPU. Disabling all MIPS optimizations."
4870                 disable mipsfpu
4871                 disable mipsdsp
4872                 disable mipsdspr2
4873                 disable msa
4874                 disable mmi
4875             ;;
4876         esac
4877
4878         case $cpu in
4879             24kc)
4880                 disable mipsfpu
4881                 disable mipsdsp
4882                 disable mipsdspr2
4883             ;;
4884             24kf*)
4885                 disable mipsdsp
4886                 disable mipsdspr2
4887             ;;
4888             24kec|34kc|1004kc)
4889                 disable mipsfpu
4890                 disable mipsdspr2
4891             ;;
4892             24kef*|34kf*|1004kf*)
4893                 disable mipsdspr2
4894             ;;
4895             74kc)
4896                 disable mipsfpu
4897             ;;
4898             p5600)
4899                 enable mips32r5
4900                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4901             ;;
4902             i6400)
4903                 enable mips64r6
4904                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4905             ;;
4906             p6600)
4907                 enable mips64r6
4908                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4909             ;;
4910         esac
4911     else
4912         # We do not disable anything. Is up to the user to disable the unwanted features.
4913         warn 'generic cpu selected'
4914     fi
4915
4916 elif enabled ppc; then
4917
4918     disable ldbrx
4919
4920     case $(tolower $cpu) in
4921         601|ppc601|powerpc601)
4922             cpuflags="-mcpu=601"
4923             disable altivec
4924         ;;
4925         603*|ppc603*|powerpc603*)
4926             cpuflags="-mcpu=603"
4927             disable altivec
4928         ;;
4929         604*|ppc604*|powerpc604*)
4930             cpuflags="-mcpu=604"
4931             disable altivec
4932         ;;
4933         g3|75*|ppc75*|powerpc75*)
4934             cpu