lavc, doc, configure: add libxavs2 video encoder wrapper
[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_h264
2275     cbs_h265
2276     cbs_mpeg2
2277     cbs_vp9
2278     dirac_parse
2279     dnn
2280     dvprofile
2281     exif
2282     faandct
2283     faanidct
2284     fdctdsp
2285     flacdsp
2286     fmtconvert
2287     frame_thread_encoder
2288     g722dsp
2289     golomb
2290     gplv3
2291     h263dsp
2292     h264chroma
2293     h264dsp
2294     h264parse
2295     h264pred
2296     h264qpel
2297     hevcparse
2298     hpeldsp
2299     huffman
2300     huffyuvdsp
2301     huffyuvencdsp
2302     idctdsp
2303     iirfilter
2304     mdct15
2305     intrax8
2306     iso_media
2307     ividsp
2308     jpegtables
2309     lgplv3
2310     libx262
2311     llauddsp
2312     llviddsp
2313     llvidencdsp
2314     lpc
2315     lzf
2316     me_cmp
2317     mpeg_er
2318     mpegaudio
2319     mpegaudiodsp
2320     mpegaudioheader
2321     mpegvideo
2322     mpegvideoenc
2323     mss34dsp
2324     pixblockdsp
2325     qpeldsp
2326     qsv
2327     qsvdec
2328     qsvenc
2329     qsvvpp
2330     rangecoder
2331     riffdec
2332     riffenc
2333     rtpdec
2334     rtpenc_chain
2335     rv34dsp
2336     sinewin
2337     snappy
2338     srtp
2339     startcode
2340     texturedsp
2341     texturedspenc
2342     tpeldsp
2343     vaapi_1
2344     vaapi_encode
2345     vc1dsp
2346     videodsp
2347     vp3dsp
2348     vp56dsp
2349     vp8dsp
2350     wma_freqs
2351     wmv2dsp
2352 "
2353
2354 CMDLINE_SELECT="
2355     $ARCH_EXT_LIST
2356     $CONFIG_LIST
2357     $HAVE_LIST_CMDLINE
2358     $THREADS_LIST
2359     asm
2360     cross_compile
2361     debug
2362     extra_warnings
2363     logging
2364     lto
2365     optimizations
2366     rpath
2367     stripping
2368 "
2369
2370 PATHS_LIST="
2371     bindir
2372     datadir
2373     docdir
2374     incdir
2375     libdir
2376     mandir
2377     pkgconfigdir
2378     prefix
2379     shlibdir
2380     install_name_dir
2381 "
2382
2383 CMDLINE_SET="
2384     $PATHS_LIST
2385     ar
2386     arch
2387     as
2388     assert_level
2389     build_suffix
2390     cc
2391     objcc
2392     cpu
2393     cross_prefix
2394     custom_allocator
2395     cxx
2396     dep_cc
2397     doxygen
2398     env
2399     extra_version
2400     gas
2401     host_cc
2402     host_cflags
2403     host_extralibs
2404     host_ld
2405     host_ldflags
2406     host_os
2407     ignore_tests
2408     install
2409     ld
2410     ln_s
2411     logfile
2412     malloc_prefix
2413     nm
2414     optflags
2415     nvcc
2416     nvccflags
2417     pkg_config
2418     pkg_config_flags
2419     progs_suffix
2420     random_seed
2421     ranlib
2422     samples
2423     strip
2424     sws_max_filter_size
2425     sysinclude
2426     sysroot
2427     target_exec
2428     target_os
2429     target_path
2430     target_samples
2431     tempprefix
2432     toolchain
2433     valgrind
2434     x86asmexe
2435 "
2436
2437 CMDLINE_APPEND="
2438     extra_cflags
2439     extra_cxxflags
2440     extra_objcflags
2441     host_cppflags
2442 "
2443
2444 # code dependency declarations
2445
2446 # architecture extensions
2447
2448 armv5te_deps="arm"
2449 armv6_deps="arm"
2450 armv6t2_deps="arm"
2451 armv8_deps="aarch64"
2452 neon_deps_any="aarch64 arm"
2453 intrinsics_neon_deps="neon"
2454 vfp_deps_any="aarch64 arm"
2455 vfpv3_deps="vfp"
2456 setend_deps="arm"
2457
2458 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2459
2460 altivec_deps="ppc"
2461 dcbzl_deps="ppc"
2462 ldbrx_deps="ppc"
2463 ppc4xx_deps="ppc"
2464 vsx_deps="altivec"
2465 power8_deps="vsx"
2466
2467 loongson2_deps="mips"
2468 loongson3_deps="mips"
2469 mips32r2_deps="mips"
2470 mips32r5_deps="mips"
2471 mips32r6_deps="mips"
2472 mips64r2_deps="mips"
2473 mips64r6_deps="mips"
2474 mipsfpu_deps="mips"
2475 mipsdsp_deps="mips"
2476 mipsdspr2_deps="mips"
2477 mmi_deps="mips"
2478 msa_deps="mipsfpu"
2479
2480 cpunop_deps="i686"
2481 x86_64_select="i686"
2482 x86_64_suggest="fast_cmov"
2483
2484 amd3dnow_deps="mmx"
2485 amd3dnowext_deps="amd3dnow"
2486 i686_deps="x86"
2487 mmx_deps="x86"
2488 mmxext_deps="mmx"
2489 sse_deps="mmxext"
2490 sse2_deps="sse"
2491 sse3_deps="sse2"
2492 ssse3_deps="sse3"
2493 sse4_deps="ssse3"
2494 sse42_deps="sse4"
2495 aesni_deps="sse42"
2496 avx_deps="sse42"
2497 xop_deps="avx"
2498 fma3_deps="avx"
2499 fma4_deps="avx"
2500 avx2_deps="avx"
2501 avx512_deps="avx2"
2502
2503 mmx_external_deps="x86asm"
2504 mmx_inline_deps="inline_asm x86"
2505 mmx_suggest="mmx_external mmx_inline"
2506
2507 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2508     eval dep=\$${ext}_deps
2509     eval ${ext}_external_deps='"${dep}_external"'
2510     eval ${ext}_inline_deps='"${dep}_inline"'
2511     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2512 done
2513
2514 aligned_stack_if_any="aarch64 ppc x86"
2515 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2516 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2517 fast_unaligned_if_any="aarch64 ppc x86"
2518 simd_align_16_if_any="altivec neon sse"
2519 simd_align_32_if_any="avx"
2520 simd_align_64_if_any="avx512"
2521
2522 # system capabilities
2523 linux_perf_deps="linux_perf_event_h"
2524 symver_if_any="symver_asm_label symver_gnu_asm"
2525 valgrind_backtrace_conflict="optimizations"
2526 valgrind_backtrace_deps="valgrind_valgrind_h"
2527
2528 # threading support
2529 atomics_gcc_if="sync_val_compare_and_swap"
2530 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2531 atomics_win32_if="MemoryBarrier"
2532 atomics_native_if_any="$ATOMICS_LIST"
2533 w32threads_deps="atomics_native"
2534 threads_if_any="$THREADS_LIST"
2535
2536 # subsystems
2537 cbs_h264_select="cbs golomb"
2538 cbs_h265_select="cbs golomb"
2539 cbs_mpeg2_select="cbs"
2540 cbs_vp9_select="cbs"
2541 dct_select="rdft"
2542 dirac_parse_select="golomb"
2543 dnn_suggest="libtensorflow"
2544 error_resilience_select="me_cmp"
2545 faandct_deps="faan"
2546 faandct_select="fdctdsp"
2547 faanidct_deps="faan"
2548 faanidct_select="idctdsp"
2549 h264dsp_select="startcode"
2550 hevcparse_select="golomb"
2551 frame_thread_encoder_deps="encoders threads"
2552 intrax8_select="blockdsp idctdsp"
2553 mdct_select="fft"
2554 mdct15_select="fft"
2555 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2556 mpeg_er_select="error_resilience"
2557 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2558 mpegaudiodsp_select="dct"
2559 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2560 mpegvideoenc_select="aandcttables me_cmp mpegvideo pixblockdsp qpeldsp"
2561 vc1dsp_select="h264chroma qpeldsp startcode"
2562 rdft_select="fft"
2563
2564 # decoders / encoders
2565 aac_decoder_select="adts_header mdct15 mdct sinewin"
2566 aac_fixed_decoder_select="adts_header mdct sinewin"
2567 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2568 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2569 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2570 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2571 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2572 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2573 adpcm_g722_decoder_select="g722dsp"
2574 adpcm_g722_encoder_select="g722dsp"
2575 aic_decoder_select="golomb idctdsp"
2576 alac_encoder_select="lpc"
2577 als_decoder_select="bswapdsp"
2578 amrnb_decoder_select="lsp"
2579 amrwb_decoder_select="lsp"
2580 amv_decoder_select="sp5x_decoder exif"
2581 amv_encoder_select="jpegtables mpegvideoenc"
2582 ape_decoder_select="bswapdsp llauddsp"
2583 apng_decoder_deps="zlib"
2584 apng_encoder_deps="zlib"
2585 apng_encoder_select="llvidencdsp"
2586 aptx_decoder_select="audio_frame_queue"
2587 aptx_encoder_select="audio_frame_queue"
2588 aptx_hd_decoder_select="audio_frame_queue"
2589 aptx_hd_encoder_select="audio_frame_queue"
2590 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2591 asv1_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2592 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2593 asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
2594 atrac1_decoder_select="mdct sinewin"
2595 atrac3_decoder_select="mdct"
2596 atrac3p_decoder_select="mdct sinewin"
2597 atrac9_decoder_select="mdct"
2598 avrn_decoder_select="exif jpegtables"
2599 bink_decoder_select="blockdsp hpeldsp"
2600 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2601 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2602 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2603 clearvideo_decoder_select="idctdsp"
2604 cllc_decoder_select="bswapdsp"
2605 comfortnoise_encoder_select="lpc"
2606 cook_decoder_select="audiodsp mdct sinewin"
2607 cscd_decoder_select="lzo"
2608 cscd_decoder_suggest="zlib"
2609 dca_decoder_select="mdct"
2610 dds_decoder_select="texturedsp"
2611 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2612 dnxhd_decoder_select="blockdsp idctdsp"
2613 dnxhd_encoder_select="blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2614 dolby_e_decoder_select="mdct"
2615 dvvideo_decoder_select="dvprofile idctdsp"
2616 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2617 dxa_decoder_deps="zlib"
2618 dxv_decoder_select="lzf texturedsp"
2619 eac3_decoder_select="ac3_decoder"
2620 eac3_encoder_select="ac3_encoder"
2621 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2622 eatgq_decoder_select="aandcttables"
2623 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2624 exr_decoder_deps="zlib"
2625 ffv1_decoder_select="rangecoder"
2626 ffv1_encoder_select="rangecoder"
2627 ffvhuff_decoder_select="huffyuv_decoder"
2628 ffvhuff_encoder_select="huffyuv_encoder"
2629 fic_decoder_select="golomb"
2630 flac_decoder_select="flacdsp"
2631 flac_encoder_select="bswapdsp flacdsp lpc"
2632 flashsv2_decoder_deps="zlib"
2633 flashsv2_encoder_deps="zlib"
2634 flashsv_decoder_deps="zlib"
2635 flashsv_encoder_deps="zlib"
2636 flv_decoder_select="h263_decoder"
2637 flv_encoder_select="h263_encoder"
2638 fourxm_decoder_select="blockdsp bswapdsp"
2639 fraps_decoder_select="bswapdsp huffman"
2640 g2m_decoder_deps="zlib"
2641 g2m_decoder_select="blockdsp idctdsp jpegtables"
2642 g729_decoder_select="audiodsp"
2643 h261_decoder_select="mpegvideo"
2644 h261_encoder_select="mpegvideoenc"
2645 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2646 h263_encoder_select="h263dsp mpegvideoenc"
2647 h263i_decoder_select="h263_decoder"
2648 h263p_decoder_select="h263_decoder"
2649 h263p_encoder_select="h263_encoder"
2650 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2651 h264_decoder_suggest="error_resilience"
2652 hap_decoder_select="snappy texturedsp"
2653 hap_encoder_deps="libsnappy"
2654 hap_encoder_select="texturedspenc"
2655 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2656 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2657 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2658 iac_decoder_select="imc_decoder"
2659 imc_decoder_select="bswapdsp fft mdct sinewin"
2660 indeo3_decoder_select="hpeldsp"
2661 indeo4_decoder_select="ividsp"
2662 indeo5_decoder_select="ividsp"
2663 interplay_video_decoder_select="hpeldsp"
2664 jpegls_decoder_select="mjpeg_decoder"
2665 jv_decoder_select="blockdsp"
2666 lagarith_decoder_select="llviddsp"
2667 ljpeg_encoder_select="idctdsp jpegtables mpegvideoenc"
2668 magicyuv_decoder_select="llviddsp"
2669 magicyuv_encoder_select="llvidencdsp"
2670 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2671 metasound_decoder_select="lsp mdct sinewin"
2672 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2673 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2674 mjpeg_encoder_select="jpegtables mpegvideoenc"
2675 mjpegb_decoder_select="mjpeg_decoder"
2676 mlp_decoder_select="mlp_parser"
2677 mlp_encoder_select="lpc"
2678 motionpixels_decoder_select="bswapdsp"
2679 mp1_decoder_select="mpegaudio"
2680 mp1float_decoder_select="mpegaudio"
2681 mp2_decoder_select="mpegaudio"
2682 mp2float_decoder_select="mpegaudio"
2683 mp3_decoder_select="mpegaudio"
2684 mp3adu_decoder_select="mpegaudio"
2685 mp3adufloat_decoder_select="mpegaudio"
2686 mp3float_decoder_select="mpegaudio"
2687 mp3on4_decoder_select="mpegaudio"
2688 mp3on4float_decoder_select="mpegaudio"
2689 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2690 mpc8_decoder_select="mpegaudiodsp"
2691 mpegvideo_decoder_select="mpegvideo"
2692 mpeg1video_decoder_select="mpegvideo"
2693 mpeg1video_encoder_select="mpegvideoenc h263dsp"
2694 mpeg2video_decoder_select="mpegvideo"
2695 mpeg2video_encoder_select="mpegvideoenc h263dsp"
2696 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2697 mpeg4_encoder_select="h263_encoder"
2698 msa1_decoder_select="mss34dsp"
2699 mscc_decoder_deps="zlib"
2700 msmpeg4v1_decoder_select="h263_decoder"
2701 msmpeg4v2_decoder_select="h263_decoder"
2702 msmpeg4v2_encoder_select="h263_encoder"
2703 msmpeg4v3_decoder_select="h263_decoder"
2704 msmpeg4v3_encoder_select="h263_encoder"
2705 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2706 mts2_decoder_select="mss34dsp"
2707 mwsc_decoder_deps="zlib"
2708 mxpeg_decoder_select="mjpeg_decoder"
2709 nellymoser_decoder_select="mdct sinewin"
2710 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2711 nuv_decoder_select="idctdsp lzo"
2712 on2avc_decoder_select="mdct"
2713 opus_decoder_deps="swresample"
2714 opus_decoder_select="mdct15"
2715 opus_encoder_select="audio_frame_queue mdct15"
2716 png_decoder_deps="zlib"
2717 png_encoder_deps="zlib"
2718 png_encoder_select="llvidencdsp"
2719 prores_decoder_select="blockdsp idctdsp"
2720 prores_encoder_select="fdctdsp"
2721 qcelp_decoder_select="lsp"
2722 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2723 ra_144_decoder_select="audiodsp"
2724 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2725 ralf_decoder_select="golomb"
2726 rasc_decoder_deps="zlib"
2727 rawvideo_decoder_select="bswapdsp"
2728 rscc_decoder_deps="zlib"
2729 rtjpeg_decoder_select="me_cmp"
2730 rv10_decoder_select="h263_decoder"
2731 rv10_encoder_select="h263_encoder"
2732 rv20_decoder_select="h263_decoder"
2733 rv20_encoder_select="h263_encoder"
2734 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2735 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2736 screenpresso_decoder_deps="zlib"
2737 shorten_decoder_select="bswapdsp"
2738 sipr_decoder_select="lsp"
2739 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2740 snow_encoder_select="dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2741 sonic_decoder_select="golomb rangecoder"
2742 sonic_encoder_select="golomb rangecoder"
2743 sonic_ls_encoder_select="golomb rangecoder"
2744 sp5x_decoder_select="mjpeg_decoder"
2745 srgc_decoder_deps="zlib"
2746 svq1_decoder_select="hpeldsp"
2747 svq1_encoder_select="hpeldsp me_cmp mpegvideoenc"
2748 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2749 svq3_decoder_suggest="zlib"
2750 tak_decoder_select="audiodsp"
2751 tdsc_decoder_deps="zlib"
2752 tdsc_decoder_select="mjpeg_decoder"
2753 theora_decoder_select="vp3_decoder"
2754 thp_decoder_select="mjpeg_decoder"
2755 tiff_decoder_suggest="zlib lzma"
2756 tiff_encoder_suggest="zlib"
2757 truehd_decoder_select="mlp_parser"
2758 truehd_encoder_select="lpc"
2759 truemotion2_decoder_select="bswapdsp"
2760 truespeech_decoder_select="bswapdsp"
2761 tscc_decoder_deps="zlib"
2762 twinvq_decoder_select="mdct lsp sinewin"
2763 txd_decoder_select="texturedsp"
2764 utvideo_decoder_select="bswapdsp llviddsp"
2765 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2766 vble_decoder_select="llviddsp"
2767 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2768 vc1image_decoder_select="vc1_decoder"
2769 vorbis_decoder_select="mdct"
2770 vorbis_encoder_select="audio_frame_queue mdct"
2771 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2772 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2773 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2774 vp6a_decoder_select="vp6_decoder"
2775 vp6f_decoder_select="vp6_decoder"
2776 vp7_decoder_select="h264pred videodsp vp8dsp"
2777 vp8_decoder_select="h264pred videodsp vp8dsp"
2778 vp9_decoder_select="videodsp vp9_parser vp9_superframe_split_bsf"
2779 wcmv_decoder_deps="zlib"
2780 webp_decoder_select="vp8_decoder exif"
2781 wmalossless_decoder_select="llauddsp"
2782 wmapro_decoder_select="mdct sinewin wma_freqs"
2783 wmav1_decoder_select="mdct sinewin wma_freqs"
2784 wmav1_encoder_select="mdct sinewin wma_freqs"
2785 wmav2_decoder_select="mdct sinewin wma_freqs"
2786 wmav2_encoder_select="mdct sinewin wma_freqs"
2787 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2788 wmv1_decoder_select="h263_decoder"
2789 wmv1_encoder_select="h263_encoder"
2790 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2791 wmv2_encoder_select="h263_encoder wmv2dsp"
2792 wmv3_decoder_select="vc1_decoder"
2793 wmv3image_decoder_select="wmv3_decoder"
2794 xma1_decoder_select="wmapro_decoder"
2795 xma2_decoder_select="wmapro_decoder"
2796 zerocodec_decoder_deps="zlib"
2797 zlib_decoder_deps="zlib"
2798 zlib_encoder_deps="zlib"
2799 zmbv_decoder_deps="zlib"
2800 zmbv_encoder_deps="zlib"
2801
2802 # hardware accelerators
2803 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2804 cuda_deps="ffnvcodec"
2805 cuvid_deps="ffnvcodec"
2806 d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2807 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
2808 ffnvcodec_deps_any="libdl LoadLibrary"
2809 nvdec_deps="ffnvcodec"
2810 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2811 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2812 xvmc_deps="X11_extensions_XvMClib_h"
2813
2814 h263_vaapi_hwaccel_deps="vaapi"
2815 h263_vaapi_hwaccel_select="h263_decoder"
2816 h263_videotoolbox_hwaccel_deps="videotoolbox"
2817 h263_videotoolbox_hwaccel_select="h263_decoder"
2818 h264_d3d11va_hwaccel_deps="d3d11va"
2819 h264_d3d11va_hwaccel_select="h264_decoder"
2820 h264_d3d11va2_hwaccel_deps="d3d11va"
2821 h264_d3d11va2_hwaccel_select="h264_decoder"
2822 h264_dxva2_hwaccel_deps="dxva2"
2823 h264_dxva2_hwaccel_select="h264_decoder"
2824 h264_nvdec_hwaccel_deps="nvdec"
2825 h264_nvdec_hwaccel_select="h264_decoder"
2826 h264_vaapi_hwaccel_deps="vaapi"
2827 h264_vaapi_hwaccel_select="h264_decoder"
2828 h264_vdpau_hwaccel_deps="vdpau"
2829 h264_vdpau_hwaccel_select="h264_decoder"
2830 h264_videotoolbox_hwaccel_deps="videotoolbox"
2831 h264_videotoolbox_hwaccel_select="h264_decoder"
2832 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2833 hevc_d3d11va_hwaccel_select="hevc_decoder"
2834 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2835 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2836 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2837 hevc_dxva2_hwaccel_select="hevc_decoder"
2838 hevc_nvdec_hwaccel_deps="nvdec"
2839 hevc_nvdec_hwaccel_select="hevc_decoder"
2840 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2841 hevc_vaapi_hwaccel_select="hevc_decoder"
2842 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2843 hevc_vdpau_hwaccel_select="hevc_decoder"
2844 hevc_videotoolbox_hwaccel_deps="videotoolbox"
2845 hevc_videotoolbox_hwaccel_select="hevc_decoder"
2846 mjpeg_nvdec_hwaccel_deps="nvdec"
2847 mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
2848 mjpeg_vaapi_hwaccel_deps="vaapi"
2849 mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
2850 mpeg_xvmc_hwaccel_deps="xvmc"
2851 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2852 mpeg1_nvdec_hwaccel_deps="nvdec"
2853 mpeg1_nvdec_hwaccel_select="mpeg1video_decoder"
2854 mpeg1_vdpau_hwaccel_deps="vdpau"
2855 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2856 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2857 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2858 mpeg1_xvmc_hwaccel_deps="xvmc"
2859 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2860 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2861 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2862 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2863 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2864 mpeg2_dxva2_hwaccel_deps="dxva2"
2865 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2866 mpeg2_nvdec_hwaccel_deps="nvdec"
2867 mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
2868 mpeg2_vaapi_hwaccel_deps="vaapi"
2869 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2870 mpeg2_vdpau_hwaccel_deps="vdpau"
2871 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2872 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2873 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2874 mpeg2_xvmc_hwaccel_deps="xvmc"
2875 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2876 mpeg4_nvdec_hwaccel_deps="nvdec"
2877 mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
2878 mpeg4_vaapi_hwaccel_deps="vaapi"
2879 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2880 mpeg4_vdpau_hwaccel_deps="vdpau"
2881 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2882 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2883 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2884 vc1_d3d11va_hwaccel_deps="d3d11va"
2885 vc1_d3d11va_hwaccel_select="vc1_decoder"
2886 vc1_d3d11va2_hwaccel_deps="d3d11va"
2887 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2888 vc1_dxva2_hwaccel_deps="dxva2"
2889 vc1_dxva2_hwaccel_select="vc1_decoder"
2890 vc1_nvdec_hwaccel_deps="nvdec"
2891 vc1_nvdec_hwaccel_select="vc1_decoder"
2892 vc1_vaapi_hwaccel_deps="vaapi"
2893 vc1_vaapi_hwaccel_select="vc1_decoder"
2894 vc1_vdpau_hwaccel_deps="vdpau"
2895 vc1_vdpau_hwaccel_select="vc1_decoder"
2896 vp8_nvdec_hwaccel_deps="nvdec"
2897 vp8_nvdec_hwaccel_select="vp8_decoder"
2898 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2899 vp8_vaapi_hwaccel_select="vp8_decoder"
2900 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2901 vp9_d3d11va_hwaccel_select="vp9_decoder"
2902 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2903 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2904 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2905 vp9_dxva2_hwaccel_select="vp9_decoder"
2906 vp9_nvdec_hwaccel_deps="nvdec"
2907 vp9_nvdec_hwaccel_select="vp9_decoder"
2908 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2909 vp9_vaapi_hwaccel_select="vp9_decoder"
2910 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2911 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2912 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2913 wmv3_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
2914 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2915 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2916
2917 # hardware-accelerated codecs
2918 omx_deps="libdl pthreads"
2919 omx_rpi_select="omx"
2920 qsv_deps="libmfx"
2921 qsvdec_select="qsv"
2922 qsvenc_select="qsv"
2923 qsvvpp_select="qsv"
2924 vaapi_encode_deps="vaapi"
2925 v4l2_m2m_deps="linux_videodev2_h sem_timedwait"
2926
2927 hwupload_cuda_filter_deps="ffnvcodec"
2928 scale_npp_filter_deps="ffnvcodec libnpp"
2929 scale_cuda_filter_deps="cuda_sdk"
2930 thumbnail_cuda_filter_deps="cuda_sdk"
2931 transpose_npp_filter_deps="ffnvcodec libnpp"
2932
2933 amf_deps_any="libdl LoadLibrary"
2934 nvenc_deps="ffnvcodec"
2935 nvenc_deps_any="libdl LoadLibrary"
2936 nvenc_encoder_deps="nvenc"
2937
2938 h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
2939 h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
2940 h264_amf_encoder_deps="amf"
2941 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2942 h264_cuvid_decoder_deps="cuvid"
2943 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2944 h264_mediacodec_decoder_deps="mediacodec"
2945 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2946 h264_mmal_decoder_deps="mmal"
2947 h264_nvenc_encoder_deps="nvenc"
2948 h264_omx_encoder_deps="omx"
2949 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec"
2950 h264_qsv_encoder_select="qsvenc"
2951 h264_rkmpp_decoder_deps="rkmpp"
2952 h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
2953 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2954 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2955 h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
2956 h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
2957 hevc_amf_encoder_deps="amf"
2958 hevc_cuvid_decoder_deps="cuvid"
2959 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2960 hevc_mediacodec_decoder_deps="mediacodec"
2961 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2962 hevc_nvenc_encoder_deps="nvenc"
2963 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
2964 hevc_qsv_encoder_select="hevcparse qsvenc"
2965 hevc_rkmpp_decoder_deps="rkmpp"
2966 hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
2967 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2968 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2969 hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
2970 hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
2971 mjpeg_cuvid_decoder_deps="cuvid"
2972 mjpeg_qsv_encoder_deps="libmfx"
2973 mjpeg_qsv_encoder_select="qsvenc"
2974 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2975 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2976 mpeg1_cuvid_decoder_deps="cuvid"
2977 mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
2978 mpeg2_crystalhd_decoder_select="crystalhd"
2979 mpeg2_cuvid_decoder_deps="cuvid"
2980 mpeg2_mmal_decoder_deps="mmal"
2981 mpeg2_mediacodec_decoder_deps="mediacodec"
2982 mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
2983 mpeg2_qsv_encoder_select="qsvenc"
2984 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2985 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2986 mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
2987 mpeg4_crystalhd_decoder_select="crystalhd"
2988 mpeg4_cuvid_decoder_deps="cuvid"
2989 mpeg4_mediacodec_decoder_deps="mediacodec"
2990 mpeg4_mmal_decoder_deps="mmal"
2991 mpeg4_omx_encoder_deps="omx"
2992 mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2993 mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
2994 msmpeg4_crystalhd_decoder_select="crystalhd"
2995 nvenc_h264_encoder_select="h264_nvenc_encoder"
2996 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2997 vc1_crystalhd_decoder_select="crystalhd"
2998 vc1_cuvid_decoder_deps="cuvid"
2999 vc1_mmal_decoder_deps="mmal"
3000 vc1_qsv_decoder_select="qsvdec vc1_parser"
3001 vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
3002 vp8_cuvid_decoder_deps="cuvid"
3003 vp8_mediacodec_decoder_deps="mediacodec"
3004 vp8_qsv_decoder_select="qsvdec vp8_parser"
3005 vp8_rkmpp_decoder_deps="rkmpp"
3006 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
3007 vp8_vaapi_encoder_select="vaapi_encode"
3008 vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
3009 vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
3010 vp9_cuvid_decoder_deps="cuvid"
3011 vp9_mediacodec_decoder_deps="mediacodec"
3012 vp9_rkmpp_decoder_deps="rkmpp"
3013 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
3014 vp9_vaapi_encoder_select="vaapi_encode"
3015 vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
3016 wmv3_crystalhd_decoder_select="crystalhd"
3017
3018 # parsers
3019 aac_parser_select="adts_header"
3020 h264_parser_select="golomb h264dsp h264parse"
3021 hevc_parser_select="hevcparse"
3022 mpegaudio_parser_select="mpegaudioheader"
3023 mpegvideo_parser_select="mpegvideo"
3024 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
3025 vc1_parser_select="vc1dsp"
3026
3027 # bitstream_filters
3028 aac_adtstoasc_bsf_select="adts_header"
3029 eac3_core_bsf_select="ac3_parser"
3030 filter_units_bsf_select="cbs"
3031 h264_metadata_bsf_deps="const_nan"
3032 h264_metadata_bsf_select="cbs_h264"
3033 h264_redundant_pps_bsf_select="cbs_h264"
3034 hevc_metadata_bsf_select="cbs_h265"
3035 mjpeg2jpeg_bsf_select="jpegtables"
3036 mpeg2_metadata_bsf_select="cbs_mpeg2"
3037 trace_headers_bsf_select="cbs"
3038 vp9_metadata_bsf_select="cbs_vp9"
3039
3040 # external libraries
3041 aac_at_decoder_deps="audiotoolbox"
3042 aac_at_decoder_select="aac_adtstoasc_bsf"
3043 ac3_at_decoder_deps="audiotoolbox"
3044 ac3_at_decoder_select="ac3_parser"
3045 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
3046 alac_at_decoder_deps="audiotoolbox"
3047 amr_nb_at_decoder_deps="audiotoolbox"
3048 avisynth_deps_any="libdl LoadLibrary"
3049 avisynth_demuxer_deps="avisynth"
3050 avisynth_demuxer_select="riffdec"
3051 eac3_at_decoder_deps="audiotoolbox"
3052 eac3_at_decoder_select="ac3_parser"
3053 gsm_ms_at_decoder_deps="audiotoolbox"
3054 ilbc_at_decoder_deps="audiotoolbox"
3055 mp1_at_decoder_deps="audiotoolbox"
3056 mp2_at_decoder_deps="audiotoolbox"
3057 mp3_at_decoder_deps="audiotoolbox"
3058 mp1_at_decoder_select="mpegaudioheader"
3059 mp2_at_decoder_select="mpegaudioheader"
3060 mp3_at_decoder_select="mpegaudioheader"
3061 pcm_alaw_at_decoder_deps="audiotoolbox"
3062 pcm_mulaw_at_decoder_deps="audiotoolbox"
3063 qdmc_at_decoder_deps="audiotoolbox"
3064 qdm2_at_decoder_deps="audiotoolbox"
3065 aac_at_encoder_deps="audiotoolbox"
3066 aac_at_encoder_select="audio_frame_queue"
3067 alac_at_encoder_deps="audiotoolbox"
3068 alac_at_encoder_select="audio_frame_queue"
3069 ilbc_at_encoder_deps="audiotoolbox"
3070 ilbc_at_encoder_select="audio_frame_queue"
3071 pcm_alaw_at_encoder_deps="audiotoolbox"
3072 pcm_alaw_at_encoder_select="audio_frame_queue"
3073 pcm_mulaw_at_encoder_deps="audiotoolbox"
3074 pcm_mulaw_at_encoder_select="audio_frame_queue"
3075 chromaprint_muxer_deps="chromaprint"
3076 h264_videotoolbox_encoder_deps="pthreads"
3077 h264_videotoolbox_encoder_select="videotoolbox_encoder"
3078 hevc_videotoolbox_encoder_deps="pthreads"
3079 hevc_videotoolbox_encoder_select="videotoolbox_encoder"
3080 libaom_av1_decoder_deps="libaom"
3081 libaom_av1_encoder_deps="libaom"
3082 libaom_av1_encoder_select="extract_extradata_bsf"
3083 libcelt_decoder_deps="libcelt"
3084 libcodec2_decoder_deps="libcodec2"
3085 libcodec2_encoder_deps="libcodec2"
3086 libdavs2_decoder_deps="libdavs2"
3087 libfdk_aac_decoder_deps="libfdk_aac"
3088 libfdk_aac_encoder_deps="libfdk_aac"
3089 libfdk_aac_encoder_select="audio_frame_queue"
3090 libgme_demuxer_deps="libgme"
3091 libgsm_decoder_deps="libgsm"
3092 libgsm_encoder_deps="libgsm"
3093 libgsm_ms_decoder_deps="libgsm"
3094 libgsm_ms_encoder_deps="libgsm"
3095 libilbc_decoder_deps="libilbc"
3096 libilbc_encoder_deps="libilbc"
3097 libkvazaar_encoder_deps="libkvazaar"
3098 libmodplug_demuxer_deps="libmodplug"
3099 libmp3lame_encoder_deps="libmp3lame"
3100 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
3101 libopencore_amrnb_decoder_deps="libopencore_amrnb"
3102 libopencore_amrnb_encoder_deps="libopencore_amrnb"
3103 libopencore_amrnb_encoder_select="audio_frame_queue"
3104 libopencore_amrwb_decoder_deps="libopencore_amrwb"
3105 libopenh264_decoder_deps="libopenh264"
3106 libopenh264_decoder_select="h264_mp4toannexb_bsf"
3107 libopenh264_encoder_deps="libopenh264"
3108 libopenjpeg_decoder_deps="libopenjpeg"
3109 libopenjpeg_encoder_deps="libopenjpeg"
3110 libopenmpt_demuxer_deps="libopenmpt"
3111 libopus_decoder_deps="libopus"
3112 libopus_encoder_deps="libopus"
3113 libopus_encoder_select="audio_frame_queue"
3114 librsvg_decoder_deps="librsvg"
3115 libshine_encoder_deps="libshine"
3116 libshine_encoder_select="audio_frame_queue"
3117 libspeex_decoder_deps="libspeex"
3118 libspeex_encoder_deps="libspeex"
3119 libspeex_encoder_select="audio_frame_queue"
3120 libtheora_encoder_deps="libtheora"
3121 libtwolame_encoder_deps="libtwolame"
3122 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
3123 libvorbis_decoder_deps="libvorbis"
3124 libvorbis_encoder_deps="libvorbis libvorbisenc"
3125 libvorbis_encoder_select="audio_frame_queue"
3126 libvpx_vp8_decoder_deps="libvpx"
3127 libvpx_vp8_encoder_deps="libvpx"
3128 libvpx_vp9_decoder_deps="libvpx"
3129 libvpx_vp9_encoder_deps="libvpx"
3130 libwavpack_encoder_deps="libwavpack"
3131 libwavpack_encoder_select="audio_frame_queue"
3132 libwebp_encoder_deps="libwebp"
3133 libwebp_anim_encoder_deps="libwebp"
3134 libx262_encoder_deps="libx262"
3135 libx264_encoder_deps="libx264"
3136 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
3137 libx264rgb_encoder_select="libx264_encoder"
3138 libx265_encoder_deps="libx265"
3139 libxavs_encoder_deps="libxavs"
3140 libxavs2_encoder_deps="libxavs2"
3141 libxvid_encoder_deps="libxvid"
3142 libzvbi_teletext_decoder_deps="libzvbi"
3143 vapoursynth_demuxer_deps="vapoursynth"
3144 videotoolbox_suggest="coreservices"
3145 videotoolbox_deps="corefoundation coremedia corevideo"
3146 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
3147
3148 # demuxers / muxers
3149 ac3_demuxer_select="ac3_parser"
3150 aiff_muxer_select="iso_media"
3151 asf_demuxer_select="riffdec"
3152 asf_o_demuxer_select="riffdec"
3153 asf_muxer_select="riffenc"
3154 asf_stream_muxer_select="asf_muxer"
3155 avi_demuxer_select="iso_media riffdec exif"
3156 avi_muxer_select="riffenc"
3157 caf_demuxer_select="iso_media riffdec"
3158 caf_muxer_select="iso_media"
3159 dash_muxer_select="mp4_muxer"
3160 dash_demuxer_deps="libxml2"
3161 dirac_demuxer_select="dirac_parser"
3162 dts_demuxer_select="dca_parser"
3163 dtshd_demuxer_select="dca_parser"
3164 dv_demuxer_select="dvprofile"
3165 dv_muxer_select="dvprofile"
3166 dxa_demuxer_select="riffdec"
3167 eac3_demuxer_select="ac3_parser"
3168 f4v_muxer_select="mov_muxer"
3169 fifo_muxer_deps="threads"
3170 flac_demuxer_select="flac_parser"
3171 hds_muxer_select="flv_muxer"
3172 hls_muxer_select="mpegts_muxer"
3173 hls_muxer_suggest="gcrypt openssl"
3174 image2_alias_pix_demuxer_select="image2_demuxer"
3175 image2_brender_pix_demuxer_select="image2_demuxer"
3176 ipod_muxer_select="mov_muxer"
3177 ismv_muxer_select="mov_muxer"
3178 matroska_audio_muxer_select="matroska_muxer"
3179 matroska_demuxer_select="iso_media riffdec"
3180 matroska_demuxer_suggest="bzlib lzo zlib"
3181 matroska_muxer_select="iso_media riffenc"
3182 mmf_muxer_select="riffenc"
3183 mov_demuxer_select="iso_media riffdec"
3184 mov_demuxer_suggest="zlib"
3185 mov_muxer_select="iso_media riffenc rtpenc_chain"
3186 mp3_demuxer_select="mpegaudio_parser"
3187 mp3_muxer_select="mpegaudioheader"
3188 mp4_muxer_select="mov_muxer"
3189 mpegts_demuxer_select="iso_media"
3190 mpegts_muxer_select="adts_muxer latm_muxer"
3191 mpegtsraw_demuxer_select="mpegts_demuxer"
3192 mxf_d10_muxer_select="mxf_muxer"
3193 mxf_opatom_muxer_select="mxf_muxer"
3194 nut_muxer_select="riffenc"
3195 nuv_demuxer_select="riffdec"
3196 oga_muxer_select="ogg_muxer"
3197 ogg_demuxer_select="dirac_parse"
3198 ogv_muxer_select="ogg_muxer"
3199 opus_muxer_select="ogg_muxer"
3200 psp_muxer_select="mov_muxer"
3201 rtp_demuxer_select="sdp_demuxer"
3202 rtp_muxer_select="golomb"
3203 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
3204 rtsp_demuxer_select="http_protocol rtpdec"
3205 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
3206 sap_demuxer_select="sdp_demuxer"
3207 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3208 sdp_demuxer_select="rtpdec"
3209 smoothstreaming_muxer_select="ismv_muxer"
3210 spdif_demuxer_select="adts_header"
3211 spdif_muxer_select="adts_header"
3212 spx_muxer_select="ogg_muxer"
3213 swf_demuxer_suggest="zlib"
3214 tak_demuxer_select="tak_parser"
3215 tg2_muxer_select="mov_muxer"
3216 tgp_muxer_select="mov_muxer"
3217 vobsub_demuxer_select="mpegps_demuxer"
3218 w64_demuxer_select="wav_demuxer"
3219 w64_muxer_select="wav_muxer"
3220 wav_demuxer_select="riffdec"
3221 wav_muxer_select="riffenc"
3222 webm_muxer_select="iso_media riffenc"
3223 webm_dash_manifest_demuxer_select="matroska_demuxer"
3224 wtv_demuxer_select="mpegts_demuxer riffdec"
3225 wtv_muxer_select="mpegts_muxer riffenc"
3226 xmv_demuxer_select="riffdec"
3227 xwma_demuxer_select="riffdec"
3228
3229 # indevs / outdevs
3230 android_camera_indev_deps="android camera2ndk mediandk pthreads"
3231 android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
3232 alsa_indev_deps="alsa"
3233 alsa_outdev_deps="alsa"
3234 avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
3235 avfoundation_indev_suggest="coregraphics applicationservices"
3236 avfoundation_indev_extralibs="-framework Foundation"
3237 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3238 caca_outdev_deps="libcaca"
3239 decklink_deps_any="libdl LoadLibrary"
3240 decklink_indev_deps="decklink threads"
3241 decklink_indev_extralibs="-lstdc++"
3242 decklink_outdev_deps="decklink threads"
3243 decklink_outdev_suggest="libklvanc"
3244 decklink_outdev_extralibs="-lstdc++"
3245 libndi_newtek_indev_deps="libndi_newtek"
3246 libndi_newtek_indev_extralibs="-lndi"
3247 libndi_newtek_outdev_deps="libndi_newtek"
3248 libndi_newtek_outdev_extralibs="-lndi"
3249 dshow_indev_deps="IBaseFilter"
3250 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3251 fbdev_indev_deps="linux_fb_h"
3252 fbdev_outdev_deps="linux_fb_h"
3253 gdigrab_indev_deps="CreateDIBSection"
3254 gdigrab_indev_extralibs="-lgdi32"
3255 gdigrab_indev_select="bmp_decoder"
3256 iec61883_indev_deps="libiec61883"
3257 jack_indev_deps="libjack"
3258 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3259 kmsgrab_indev_deps="libdrm"
3260 lavfi_indev_deps="avfilter"
3261 libcdio_indev_deps="libcdio"
3262 libdc1394_indev_deps="libdc1394"
3263 openal_indev_deps="openal"
3264 opengl_outdev_deps="opengl"
3265 oss_indev_deps_any="sys_soundcard_h"
3266 oss_outdev_deps_any="sys_soundcard_h"
3267 pulse_indev_deps="libpulse"
3268 pulse_outdev_deps="libpulse"
3269 sdl2_outdev_deps="sdl2"
3270 sndio_indev_deps="sndio"
3271 sndio_outdev_deps="sndio"
3272 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3273 v4l2_indev_suggest="libv4l2"
3274 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3275 v4l2_outdev_suggest="libv4l2"
3276 vfwcap_indev_deps="vfw32 vfwcap_defines"
3277 xcbgrab_indev_deps="libxcb"
3278 xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
3279 xv_outdev_deps="xlib"
3280
3281 # protocols
3282 async_protocol_deps="threads"
3283 bluray_protocol_deps="libbluray"
3284 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
3285 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl mbedtls"
3286 ffrtmpcrypt_protocol_select="tcp_protocol"
3287 ffrtmphttp_protocol_conflict="librtmp_protocol"
3288 ffrtmphttp_protocol_select="http_protocol"
3289 ftp_protocol_select="tcp_protocol"
3290 gopher_protocol_select="network"
3291 http_protocol_select="tcp_protocol"
3292 http_protocol_suggest="zlib"
3293 httpproxy_protocol_select="tcp_protocol"
3294 httpproxy_protocol_suggest="zlib"
3295 https_protocol_select="tls_protocol"
3296 https_protocol_suggest="zlib"
3297 icecast_protocol_select="http_protocol"
3298 mmsh_protocol_select="http_protocol"
3299 mmst_protocol_select="network"
3300 rtmp_protocol_conflict="librtmp_protocol"
3301 rtmp_protocol_select="tcp_protocol"
3302 rtmp_protocol_suggest="zlib"
3303 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3304 rtmpe_protocol_suggest="zlib"
3305 rtmps_protocol_conflict="librtmp_protocol"
3306 rtmps_protocol_select="tls_protocol"
3307 rtmps_protocol_suggest="zlib"
3308 rtmpt_protocol_select="ffrtmphttp_protocol"
3309 rtmpt_protocol_suggest="zlib"
3310 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3311 rtmpte_protocol_suggest="zlib"
3312 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3313 rtmpts_protocol_suggest="zlib"
3314 rtp_protocol_select="udp_protocol"
3315 schannel_conflict="openssl gnutls libtls mbedtls"
3316 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3317 sctp_protocol_select="network"
3318 securetransport_conflict="openssl gnutls libtls mbedtls"
3319 srtp_protocol_select="rtp_protocol srtp"
3320 tcp_protocol_select="network"
3321 tls_protocol_deps_any="gnutls openssl schannel securetransport libtls mbedtls"
3322 tls_protocol_select="tcp_protocol"
3323 udp_protocol_select="network"
3324 udplite_protocol_select="network"
3325 unix_protocol_deps="sys_un_h"
3326 unix_protocol_select="network"
3327
3328 # external library protocols
3329 librtmp_protocol_deps="librtmp"
3330 librtmpe_protocol_deps="librtmp"
3331 librtmps_protocol_deps="librtmp"
3332 librtmpt_protocol_deps="librtmp"
3333 librtmpte_protocol_deps="librtmp"
3334 libsmbclient_protocol_deps="libsmbclient gplv3"
3335 libsrt_protocol_deps="libsrt"
3336 libsrt_protocol_select="network"
3337 libssh_protocol_deps="libssh"
3338 libtls_conflict="openssl gnutls mbedtls"
3339
3340 # filters
3341 afftfilt_filter_deps="avcodec"
3342 afftfilt_filter_select="fft"
3343 afir_filter_deps="avcodec"
3344 afir_filter_select="fft"
3345 amovie_filter_deps="avcodec avformat"
3346 aresample_filter_deps="swresample"
3347 ass_filter_deps="libass"
3348 atempo_filter_deps="avcodec"
3349 atempo_filter_select="rdft"
3350 avgblur_opencl_filter_deps="opencl"
3351 azmq_filter_deps="libzmq"
3352 blackframe_filter_deps="gpl"
3353 boxblur_filter_deps="gpl"
3354 boxblur_opencl_filter_deps="opencl gpl"
3355 bs2b_filter_deps="libbs2b"
3356 colormatrix_filter_deps="gpl"
3357 convolution_opencl_filter_deps="opencl"
3358 convolve_filter_deps="avcodec"
3359 convolve_filter_select="fft"
3360 coreimage_filter_deps="coreimage appkit"
3361 coreimage_filter_extralibs="-framework OpenGL"
3362 coreimagesrc_filter_deps="coreimage appkit"
3363 coreimagesrc_filter_extralibs="-framework OpenGL"
3364 cover_rect_filter_deps="avcodec avformat gpl"
3365 cropdetect_filter_deps="gpl"
3366 deconvolve_filter_deps="avcodec"
3367 deconvolve_filter_select="fft"
3368 deinterlace_qsv_filter_deps="libmfx"
3369 deinterlace_vaapi_filter_deps="vaapi"
3370 delogo_filter_deps="gpl"
3371 denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3372 deshake_filter_select="pixelutils"
3373 dilation_opencl_filter_deps="opencl"
3374 drawtext_filter_deps="libfreetype"
3375 drawtext_filter_suggest="libfontconfig libfribidi"
3376 elbg_filter_deps="avcodec"
3377 eq_filter_deps="gpl"
3378 erosion_opencl_filter_deps="opencl"
3379 fftfilt_filter_deps="avcodec"
3380 fftfilt_filter_select="rdft"
3381 fftdnoiz_filter_deps="avcodec"
3382 fftdnoiz_filter_select="fft"
3383 find_rect_filter_deps="avcodec avformat gpl"
3384 firequalizer_filter_deps="avcodec"
3385 firequalizer_filter_select="rdft"
3386 flite_filter_deps="libflite"
3387 framerate_filter_select="pixelutils"
3388 frei0r_filter_deps="frei0r libdl"
3389 frei0r_src_filter_deps="frei0r libdl"
3390 fspp_filter_deps="gpl"
3391 geq_filter_deps="gpl"
3392 histeq_filter_deps="gpl"
3393 hqdn3d_filter_deps="gpl"
3394 interlace_filter_deps="gpl"
3395 kerndeint_filter_deps="gpl"
3396 ladspa_filter_deps="ladspa libdl"
3397 lensfun_filter_deps="liblensfun version3"
3398 lv2_filter_deps="lv2"
3399 mcdeint_filter_deps="avcodec gpl"
3400 movie_filter_deps="avcodec avformat"
3401 mpdecimate_filter_deps="gpl"
3402 mpdecimate_filter_select="pixelutils"
3403 mptestsrc_filter_deps="gpl"
3404 negate_filter_deps="lut_filter"
3405 nnedi_filter_deps="gpl"
3406 ocr_filter_deps="libtesseract"
3407 ocv_filter_deps="libopencv"
3408 openclsrc_filter_deps="opencl"
3409 overlay_opencl_filter_deps="opencl"
3410 overlay_qsv_filter_deps="libmfx"
3411 overlay_qsv_filter_select="qsvvpp"
3412 owdenoise_filter_deps="gpl"
3413 pan_filter_deps="swresample"
3414 perspective_filter_deps="gpl"
3415 phase_filter_deps="gpl"
3416 pp7_filter_deps="gpl"
3417 pp_filter_deps="gpl postproc"
3418 prewitt_opencl_filter_deps="opencl"
3419 procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3420 program_opencl_filter_deps="opencl"
3421 pullup_filter_deps="gpl"
3422 removelogo_filter_deps="avcodec avformat swscale"
3423 repeatfields_filter_deps="gpl"
3424 resample_filter_deps="avresample"
3425 roberts_opencl_filter_deps="opencl"
3426 rubberband_filter_deps="librubberband"
3427 sab_filter_deps="gpl swscale"
3428 scale2ref_filter_deps="swscale"
3429 scale_filter_deps="swscale"
3430 scale_qsv_filter_deps="libmfx"
3431 select_filter_select="pixelutils"
3432 sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3433 showcqt_filter_deps="avcodec avformat swscale"
3434 showcqt_filter_suggest="libfontconfig libfreetype"
3435 showcqt_filter_select="fft"
3436 showfreqs_filter_deps="avcodec"
3437 showfreqs_filter_select="fft"
3438 showspectrum_filter_deps="avcodec"
3439 showspectrum_filter_select="fft"
3440 showspectrumpic_filter_deps="avcodec"
3441 showspectrumpic_filter_select="fft"
3442 signature_filter_deps="gpl avcodec avformat"
3443 smartblur_filter_deps="gpl swscale"
3444 sobel_opencl_filter_deps="opencl"
3445 sofalizer_filter_deps="libmysofa avcodec"
3446 sofalizer_filter_select="fft"
3447 spectrumsynth_filter_deps="avcodec"
3448 spectrumsynth_filter_select="fft"
3449 spp_filter_deps="gpl avcodec"
3450 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3451 sr_filter_deps="avformat swscale"
3452 sr_filter_select="dnn"
3453 stereo3d_filter_deps="gpl"
3454 subtitles_filter_deps="avformat avcodec libass"
3455 super2xsai_filter_deps="gpl"
3456 pixfmts_super2xsai_test_deps="super2xsai_filter"
3457 tinterlace_filter_deps="gpl"
3458 tinterlace_merge_test_deps="tinterlace_filter"
3459 tinterlace_pad_test_deps="tinterlace_filter"
3460 tonemap_filter_deps="const_nan"
3461 tonemap_opencl_filter_deps="opencl const_nan"
3462 unsharp_opencl_filter_deps="opencl"
3463 uspp_filter_deps="gpl avcodec"
3464 vaguedenoiser_filter_deps="gpl"
3465 vidstabdetect_filter_deps="libvidstab"
3466 vidstabtransform_filter_deps="libvidstab"
3467 libvmaf_filter_deps="libvmaf pthreads"
3468 zmq_filter_deps="libzmq"
3469 zoompan_filter_deps="swscale"
3470 zscale_filter_deps="libzimg const_nan"
3471 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3472 vpp_qsv_filter_deps="libmfx"
3473 vpp_qsv_filter_select="qsvvpp"
3474
3475 # examples
3476 avio_dir_cmd_deps="avformat avutil"
3477 avio_reading_deps="avformat avcodec avutil"
3478 decode_audio_example_deps="avcodec avutil"
3479 decode_video_example_deps="avcodec avutil"
3480 demuxing_decoding_example_deps="avcodec avformat avutil"
3481 encode_audio_example_deps="avcodec avutil"
3482 encode_video_example_deps="avcodec avutil"
3483 extract_mvs_example_deps="avcodec avformat avutil"
3484 filter_audio_example_deps="avfilter avutil"
3485 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3486 filtering_video_example_deps="avfilter avcodec avformat avutil"
3487 http_multiclient_example_deps="avformat avutil fork"
3488 hw_decode_example_deps="avcodec avformat avutil"
3489 metadata_example_deps="avformat avutil"
3490 muxing_example_deps="avcodec avformat avutil swscale"
3491 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3492 remuxing_example_deps="avcodec avformat avutil"
3493 resampling_audio_example_deps="avutil swresample"
3494 scaling_video_example_deps="avutil swscale"
3495 transcode_aac_example_deps="avcodec avformat swresample"
3496 transcoding_example_deps="avfilter avcodec avformat avutil"
3497 vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
3498 vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
3499
3500 # EXTRALIBS_LIST
3501 cpu_init_extralibs="pthreads_extralibs"
3502 cws2fws_extralibs="zlib_extralibs"
3503
3504 # libraries, in any order
3505 avcodec_deps="avutil"
3506 avcodec_suggest="libm"
3507 avcodec_select="null_bsf"
3508 avdevice_deps="avformat avcodec avutil"
3509 avdevice_suggest="libm"
3510 avfilter_deps="avutil"
3511 avfilter_suggest="libm"
3512 avformat_deps="avcodec avutil"
3513 avformat_suggest="libm network zlib"
3514 avresample_deps="avutil"
3515 avresample_suggest="libm"
3516 avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
3517 postproc_deps="avutil gpl"
3518 postproc_suggest="libm"
3519 swresample_deps="avutil"
3520 swresample_suggest="libm libsoxr"
3521 swscale_deps="avutil"
3522 swscale_suggest="libm"
3523
3524 avcodec_extralibs="pthreads_extralibs iconv_extralibs"
3525 avfilter_extralibs="pthreads_extralibs"
3526 avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
3527
3528 # programs
3529 ffmpeg_deps="avcodec avfilter avformat"
3530 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3531                null_filter
3532                trim_filter"
3533 ffmpeg_suggest="ole32 psapi shell32"
3534 ffplay_deps="avcodec avformat swscale swresample sdl2"
3535 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3536 ffplay_suggest="shell32"
3537 ffprobe_deps="avcodec avformat"
3538 ffprobe_suggest="shell32"
3539
3540 # documentation
3541 podpages_deps="perl"
3542 manpages_deps="perl pod2man"
3543 htmlpages_deps="perl"
3544 htmlpages_deps_any="makeinfo_html texi2html"
3545 txtpages_deps="perl makeinfo"
3546 doc_deps_any="manpages htmlpages podpages txtpages"
3547
3548 # default parameters
3549
3550 logfile="ffbuild/config.log"
3551
3552 # installation paths
3553 prefix_default="/usr/local"
3554 bindir_default='${prefix}/bin'
3555 datadir_default='${prefix}/share/ffmpeg'
3556 docdir_default='${prefix}/share/doc/ffmpeg'
3557 incdir_default='${prefix}/include'
3558 libdir_default='${prefix}/lib'
3559 mandir_default='${prefix}/share/man'
3560
3561 # toolchain
3562 ar_default="ar"
3563 cc_default="gcc"
3564 cxx_default="g++"
3565 host_cc_default="gcc"
3566 doxygen_default="doxygen"
3567 install="install"
3568 ln_s_default="ln -s -f"
3569 nm_default="nm -g"
3570 pkg_config_default=pkg-config
3571 ranlib_default="ranlib"
3572 strip_default="strip"
3573 version_script='--version-script'
3574 objformat="elf32"
3575 x86asmexe_default="nasm"
3576 windres_default="windres"
3577 nvcc_default="nvcc"
3578 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3579 striptype="direct"
3580
3581 # OS
3582 target_os_default=$(tolower $(uname -s))
3583 host_os=$target_os_default
3584
3585 # machine
3586 if test "$target_os_default" = aix; then
3587     arch_default=$(uname -p)
3588     strip_default="strip -X32_64"
3589 else
3590     arch_default=$(uname -m)
3591 fi
3592 cpu="generic"
3593 intrinsics="none"
3594
3595 # configurable options
3596 enable $PROGRAM_LIST
3597 enable $DOCUMENT_LIST
3598 enable $EXAMPLE_LIST
3599 enable $(filter_out avresample $LIBRARY_LIST)
3600 enable stripping
3601
3602 enable asm
3603 enable debug
3604 enable doc
3605 enable faan faandct faanidct
3606 enable optimizations
3607 enable runtime_cpudetect
3608 enable safe_bitstream_reader
3609 enable static
3610 enable swscale_alpha
3611 enable valgrind_backtrace
3612
3613 sws_max_filter_size_default=256
3614 set_default sws_max_filter_size
3615
3616 # internal components are enabled by default
3617 enable $EXTRALIBS_LIST
3618
3619 # Avoid external, non-system, libraries getting enabled by dependency resolution
3620 disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
3621
3622 # build settings
3623 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3624 LIBPREF="lib"
3625 LIBSUF=".a"
3626 FULLNAME='$(NAME)$(BUILDSUF)'
3627 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3628 SLIBPREF="lib"
3629 SLIBSUF=".so"
3630 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3631 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3632 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3633 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3634 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3635 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3636 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3637
3638 asflags_filter=echo
3639 cflags_filter=echo
3640 ldflags_filter=echo
3641
3642 AS_C='-c'
3643 AS_O='-o $@'
3644 CC_C='-c'
3645 CC_E='-E -o $@'
3646 CC_O='-o $@'
3647 CXX_C='-c'
3648 CXX_O='-o $@'
3649 OBJCC_C='-c'
3650 OBJCC_E='-E -o $@'
3651 OBJCC_O='-o $@'
3652 X86ASM_O='-o $@'
3653 LD_O='-o $@'
3654 LD_LIB='-l%'
3655 LD_PATH='-L'
3656 HOSTCC_C='-c'
3657 HOSTCC_E='-E -o $@'
3658 HOSTCC_O='-o $@'
3659 HOSTLD_O='-o $@'
3660 NVCC_C='-c'
3661 NVCC_O='-o $@'
3662
3663 host_extralibs='-lm'
3664 host_cflags_filter=echo
3665 host_ldflags_filter=echo
3666
3667 target_path='$(CURDIR)'
3668
3669 # since the object filename is not given with the -MM flag, the compiler
3670 # is only able to print the basename, and we must add the path ourselves
3671 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3672 DEPFLAGS='-MM'
3673
3674 mkdir -p ffbuild
3675
3676 # find source path
3677 if test -f configure; then
3678     source_path=.
3679 else
3680     source_path=$(cd $(dirname "$0"); pwd)
3681     case "$source_path" in
3682         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3683     esac
3684     test -e "$source_path/config.h" &&
3685         die "Out of tree builds are impossible with config.h in source dir."
3686 fi
3687
3688 for v in "$@"; do
3689     r=${v#*=}
3690     l=${v%"$r"}
3691     r=$(sh_quote "$r")
3692     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3693 done
3694
3695 find_things_extern(){
3696     thing=$1
3697     pattern=$2
3698     file=$source_path/$3
3699     out=${4:-$thing}
3700     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
3701 }
3702
3703 find_filters_extern(){
3704     file=$source_path/$1
3705     #sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file
3706     sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file
3707 }
3708
3709 FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
3710 OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
3711 INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
3712 MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
3713 DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
3714 ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
3715 DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
3716 CODEC_LIST="
3717     $ENCODER_LIST
3718     $DECODER_LIST
3719 "
3720 PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parsers.c)
3721 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3722 HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
3723 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3724
3725 AVCODEC_COMPONENTS_LIST="
3726     $BSF_LIST
3727     $DECODER_LIST
3728     $ENCODER_LIST
3729     $HWACCEL_LIST
3730     $PARSER_LIST
3731 "
3732
3733 AVDEVICE_COMPONENTS_LIST="
3734     $INDEV_LIST
3735     $OUTDEV_LIST
3736 "
3737
3738 AVFILTER_COMPONENTS_LIST="
3739     $FILTER_LIST
3740 "
3741
3742 AVFORMAT_COMPONENTS_LIST="
3743     $DEMUXER_LIST
3744     $MUXER_LIST
3745     $PROTOCOL_LIST
3746 "
3747
3748 ALL_COMPONENTS="
3749     $AVCODEC_COMPONENTS_LIST
3750     $AVDEVICE_COMPONENTS_LIST
3751     $AVFILTER_COMPONENTS_LIST
3752     $AVFORMAT_COMPONENTS_LIST
3753 "
3754
3755 for n in $COMPONENT_LIST; do
3756     v=$(toupper ${n%s})_LIST
3757     eval enable \$$v
3758     eval ${n}_if_any="\$$v"
3759 done
3760
3761 enable $ARCH_EXT_LIST
3762
3763 die_unknown(){
3764     echo "Unknown option \"$1\"."
3765     echo "See $0 --help for available options."
3766     exit 1
3767 }
3768
3769 print_in_columns() {
3770     cols=$(expr $ncols / 24)
3771     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3772 }
3773
3774 show_list() {
3775     suffix=_$1
3776     shift
3777     echo $* | sed s/$suffix//g | print_in_columns
3778     exit 0
3779 }
3780
3781 rand_list(){
3782     IFS=', '
3783     set -- $*
3784     unset IFS
3785     for thing; do
3786         comp=${thing%:*}
3787         prob=${thing#$comp}
3788         prob=${prob#:}
3789         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3790         echo "prob ${prob:-0.5}"
3791         printf '%s\n' $comp
3792     done
3793 }
3794
3795 do_random(){
3796     action=$1
3797     shift
3798     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3799     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3800 }
3801
3802 for opt do
3803     optval="${opt#*=}"
3804     case "$opt" in
3805         --extra-ldflags=*)
3806             add_ldflags $optval
3807         ;;
3808         --extra-ldexeflags=*)
3809             add_ldexeflags $optval
3810         ;;
3811         --extra-ldsoflags=*)
3812             add_ldsoflags $optval
3813         ;;
3814         --extra-ldlibflags=*)
3815             warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
3816                  "removed in the future. Use --extra-ldsoflags instead."
3817             add_ldsoflags $optval
3818         ;;
3819         --extra-libs=*)
3820             add_extralibs $optval
3821         ;;
3822         --disable-devices)
3823             disable $INDEV_LIST $OUTDEV_LIST
3824         ;;
3825         --enable-debug=*)
3826             debuglevel="$optval"
3827         ;;
3828         --disable-programs)
3829             disable $PROGRAM_LIST
3830         ;;
3831         --disable-everything)
3832             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3833         ;;
3834         --disable-all)
3835             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3836             disable $LIBRARY_LIST $PROGRAM_LIST doc
3837             enable avutil
3838         ;;
3839         --enable-random|--disable-random)
3840             action=${opt%%-random}
3841             do_random ${action#--} $COMPONENT_LIST
3842         ;;
3843         --enable-random=*|--disable-random=*)
3844             action=${opt%%-random=*}
3845             do_random ${action#--} $optval
3846         ;;
3847         --enable-sdl)
3848             enable sdl2
3849         ;;
3850         --enable-*=*|--disable-*=*)
3851             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3852             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3853             eval list=\$$(toupper $thing)_LIST
3854             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3855             list=$(filter "$name" $list)
3856             [ "$list" = "" ] && warn "Option $opt did not match anything"
3857             $action $list
3858         ;;
3859         --enable-yasm|--disable-yasm)
3860             warn "The ${opt} option is only provided for compatibility and will be\n"\
3861                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3862             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3863         ;;
3864         --yasmexe=*)
3865             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3866                  "removed in the future. Use --x86asmexe instead."
3867             x86asmexe="$optval"
3868         ;;
3869         --enable-?*|--disable-?*)
3870             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3871             if is_in $option $COMPONENT_LIST; then
3872                 test $action = disable && action=unset
3873                 eval $action \$$(toupper ${option%s})_LIST
3874             elif is_in $option $CMDLINE_SELECT; then
3875                 $action $option
3876             else
3877                 die_unknown $opt
3878             fi
3879         ;;
3880         --list-*)
3881             NAME="${opt#--list-}"
3882             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3883             NAME=${NAME%s}
3884             eval show_list $NAME \$$(toupper $NAME)_LIST
3885         ;;
3886         --help|-h) show_help
3887         ;;
3888         --quiet|-q) quiet=yes
3889         ;;
3890         --fatal-warnings) enable fatal_warnings
3891         ;;
3892         --libfuzzer=*)
3893             libfuzzer_path="$optval"
3894         ;;
3895         *)
3896             optname="${opt%%=*}"
3897             optname="${optname#--}"
3898             optname=$(echo "$optname" | sed 's/-/_/g')
3899             if is_in $optname $CMDLINE_SET; then
3900                 eval $optname='$optval'
3901             elif is_in $optname $CMDLINE_APPEND; then
3902                 append $optname "$optval"
3903             else
3904                 die_unknown $opt
3905             fi
3906         ;;
3907     esac
3908 done
3909
3910 for e in $env; do
3911     eval "export $e"
3912 done
3913
3914 if disabled autodetect; then
3915
3916     # Unless iconv is explicitely disabled by the user, we still want to probe
3917     # for the iconv from the libc.
3918     disabled iconv || enable libc_iconv
3919
3920     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3921     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3922 fi
3923 # Mark specifically enabled, but normally autodetected libraries as requested.
3924 for lib in $AUTODETECT_LIBS; do
3925     enabled $lib && request $lib
3926 done
3927 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3928 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3929 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3930
3931 disabled logging && logfile=/dev/null
3932
3933 # command line configuration sanity checks
3934
3935 # we need to build at least one lib type
3936 if ! enabled_any static shared; then
3937     cat <<EOF
3938 At least one library type must be built.
3939 Specify --enable-static to build the static libraries or --enable-shared to
3940 build the shared libraries as well. To only build the shared libraries specify
3941 --disable-static in addition to --enable-shared.
3942 EOF
3943     exit 1
3944 fi
3945
3946 die_license_disabled() {
3947     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3948 }
3949
3950 die_license_disabled_gpl() {
3951     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3952 }
3953
3954 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3955 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3956
3957 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3958 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3959
3960 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3961
3962 if enabled nonfree; then
3963     license="nonfree and unredistributable"
3964 elif enabled gplv3; then
3965     license="GPL version 3 or later"
3966 elif enabled lgplv3; then
3967     license="LGPL version 3 or later"
3968 elif enabled gpl; then
3969     license="GPL version 2 or later"
3970 else
3971     license="LGPL version 2.1 or later"
3972 fi
3973
3974 enabled_all gnutls openssl &&
3975     die "GnuTLS and OpenSSL must not be enabled at the same time."
3976
3977 enabled_all gnutls mbedtls &&
3978     die "GnuTLS and mbedTLS must not be enabled at the same time."
3979
3980 enabled_all openssl mbedtls &&
3981     die "OpenSSL and mbedTLS must not be enabled at the same time."
3982
3983 # Disable all the library-specific components if the library itself
3984 # is disabled, see AVCODEC_LIST and following _LIST variables.
3985
3986 disable_components(){
3987     disabled ${1} && disable $(
3988         eval components="\$$(toupper ${1})_COMPONENTS"
3989         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3990     )
3991 }
3992
3993 map 'disable_components $v' $LIBRARY_LIST
3994
3995 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3996 set >> $logfile
3997
3998 test -n "$valgrind" && toolchain="valgrind-memcheck"
3999
4000 enabled ossfuzz && ! echo $CFLAGS | grep -q -- "-fsanitize="  && ! echo $CFLAGS | grep -q -- "-fcoverage-mapping" &&{
4001     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
4002     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
4003 }
4004
4005 case "$toolchain" in
4006     *-asan)
4007         cc_default="${toolchain%-asan}"
4008         add_cflags  -fsanitize=address
4009         add_ldflags -fsanitize=address
4010     ;;
4011     *-msan)
4012         cc_default="${toolchain%-msan}"
4013         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
4014         add_ldflags -fsanitize=memory
4015     ;;
4016     *-tsan)
4017         cc_default="${toolchain%-tsan}"
4018         add_cflags  -fsanitize=thread
4019         add_ldflags -fsanitize=thread
4020         case "$toolchain" in
4021             gcc-tsan)
4022                 add_cflags  -fPIC
4023                 add_ldflags -fPIC
4024                 ;;
4025         esac
4026     ;;
4027     *-usan)
4028         cc_default="${toolchain%-usan}"
4029         add_cflags  -fsanitize=undefined
4030         add_ldflags -fsanitize=undefined
4031     ;;
4032     valgrind-*)
4033         target_exec_default="valgrind"
4034         case "$toolchain" in
4035             valgrind-massif)
4036                 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"
4037                 ;;
4038             valgrind-memcheck)
4039                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4040                 ;;
4041         esac
4042     ;;
4043     msvc)
4044         # Check whether the current MSVC version needs the C99 converter.
4045         # From MSVC 2013 (compiler major version 18) onwards, it does actually
4046         # support enough of C99 to build ffmpeg. Default to the new
4047         # behaviour if the regexp was unable to match anything, since this
4048         # successfully parses the version number of existing supported
4049         # versions that require the converter (MSVC 2010 and 2012).
4050         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
4051         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
4052             cc_default="cl"
4053             cxx_default="cl"
4054         else
4055             die "Unsupported MSVC version (2013 or newer required)"
4056         fi
4057         ld_default="$source_path/compat/windows/mslink"
4058         nm_default="dumpbin -symbols"
4059         ar_default="lib"
4060         case "$arch" in
4061         aarch64|arm64)
4062             as_default="armasm64"
4063             ;;
4064         arm*)
4065             as_default="armasm"
4066             ;;
4067         esac
4068         target_os_default="win32"
4069         # Use a relative path for TMPDIR. This makes sure all the
4070         # ffconf temp files are written with a relative path, avoiding
4071         # issues with msys/win32 path conversion for MSVC parameters
4072         # such as -Fo<file> or -out:<file>.
4073         TMPDIR=.
4074     ;;
4075     icl)
4076         cc_default="icl"
4077         ld_default="xilink"
4078         nm_default="dumpbin -symbols"
4079         ar_default="xilib"
4080         target_os_default="win32"
4081         TMPDIR=.
4082     ;;
4083     gcov)
4084         add_cflags  -fprofile-arcs -ftest-coverage
4085         add_ldflags -fprofile-arcs -ftest-coverage
4086     ;;
4087     llvm-cov)
4088         add_cflags -fprofile-arcs -ftest-coverage
4089         add_ldflags --coverage
4090     ;;
4091     hardened)
4092         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
4093         add_cflags   -fno-strict-overflow -fstack-protector-all
4094         add_ldflags  -Wl,-z,relro -Wl,-z,now
4095         add_cflags   -fPIE
4096         add_ldexeflags -fPIE -pie
4097     ;;
4098     ?*)
4099         die "Unknown toolchain $toolchain"
4100     ;;
4101 esac
4102
4103 if test -n "$cross_prefix"; then
4104     test -n "$arch" && test -n "$target_os" ||
4105         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
4106     enable cross_compile
4107 fi
4108
4109 ar_default="${cross_prefix}${ar_default}"
4110 cc_default="${cross_prefix}${cc_default}"
4111 cxx_default="${cross_prefix}${cxx_default}"
4112 nm_default="${cross_prefix}${nm_default}"
4113 pkg_config_default="${cross_prefix}${pkg_config_default}"
4114 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
4115     ranlib_default="${cross_prefix}${ranlib_default} -D"
4116 else
4117     ranlib_default="${cross_prefix}${ranlib_default}"
4118 fi
4119 strip_default="${cross_prefix}${strip_default}"
4120 windres_default="${cross_prefix}${windres_default}"
4121
4122 sysinclude_default="${sysroot}/usr/include"
4123
4124 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
4125     target_exec target_os x86asmexe nvcc
4126 enabled cross_compile || host_cc_default=$cc
4127 set_default host_cc
4128
4129 pkg_config_fail_message=""
4130 if ! $pkg_config --version >/dev/null 2>&1; then
4131     warn "$pkg_config not found, library detection may fail."
4132     pkg_config=false
4133 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
4134     pkg_config_fail_message="
4135 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
4136 fi
4137
4138 if test $doxygen != $doxygen_default && \
4139   ! $doxygen --version >/dev/null 2>&1; then
4140     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
4141 fi
4142
4143 exesuf() {
4144     case $1 in
4145         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
4146     esac
4147 }
4148
4149 EXESUF=$(exesuf $target_os)
4150 HOSTEXESUF=$(exesuf $host_os)
4151
4152 # set temporary file name
4153 : ${TMPDIR:=$TEMPDIR}
4154 : ${TMPDIR:=$TMP}
4155 : ${TMPDIR:=/tmp}
4156
4157 if [ -n "$tempprefix" ] ; then
4158     mktemp(){
4159         tmpname="$tempprefix.${HOSTNAME}.${UID}"
4160         echo "$tmpname"
4161         mkdir "$tmpname"
4162     }
4163 elif ! test_cmd mktemp -u XXXXXX; then
4164     # simple replacement for missing mktemp
4165     # NOT SAFE FOR GENERAL USE
4166     mktemp(){
4167         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
4168         echo "$tmpname"
4169         mkdir "$tmpname"
4170     }
4171 fi
4172
4173 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
4174     die "Unable to create temporary directory in $TMPDIR."
4175
4176 tmpfile(){
4177     tmp="${FFTMPDIR}/test"$2
4178     (set -C; exec > $tmp) 2> /dev/null ||
4179         die "Unable to create temporary file in $FFTMPDIR."
4180     eval $1=$tmp
4181 }
4182
4183 trap 'rm -rf -- "$FFTMPDIR"' EXIT
4184 trap 'exit 2' INT
4185
4186 tmpfile TMPASM .asm
4187 tmpfile TMPC   .c
4188 tmpfile TMPCPP .cpp
4189 tmpfile TMPE   $EXESUF
4190 tmpfile TMPH   .h
4191 tmpfile TMPM   .m
4192 tmpfile TMPO   .o
4193 tmpfile TMPS   .S
4194 tmpfile TMPSH  .sh
4195 tmpfile TMPV   .ver
4196
4197 unset -f mktemp
4198
4199 chmod +x $TMPE
4200
4201 # make sure we can execute files in $TMPDIR
4202 cat > $TMPSH 2>> $logfile <<EOF
4203 #! /bin/sh
4204 EOF
4205 chmod +x $TMPSH >> $logfile 2>&1
4206 if ! $TMPSH >> $logfile 2>&1; then
4207     cat <<EOF
4208 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
4209 variable to another directory and make sure that it is not mounted noexec.
4210 EOF
4211     die "Sanity test failed."
4212 fi
4213
4214 armasm_flags(){
4215     for flag; do
4216         case $flag in
4217             # Filter out MSVC cl.exe options from cflags that shouldn't
4218             # be passed to gas-preprocessor
4219             -M[TD]*)                                            ;;
4220             *)                  echo $flag                      ;;
4221         esac
4222    done
4223 }
4224
4225 cparser_flags(){
4226     for flag; do
4227         case $flag in
4228             -Wno-switch)             echo -Wno-switch-enum ;;
4229             -Wno-format-zero-length) ;;
4230             -Wdisabled-optimization) ;;
4231             -Wno-pointer-sign)       echo -Wno-other ;;
4232             *)                       echo $flag ;;
4233         esac
4234     done
4235 }
4236
4237 msvc_common_flags(){
4238     for flag; do
4239         case $flag in
4240             # In addition to specifying certain flags under the compiler
4241             # specific filters, they must be specified here as well or else the
4242             # generic catch all at the bottom will print the original flag.
4243             -Wall)                ;;
4244             -Wextra)              ;;
4245             -std=c99)             ;;
4246             # Common flags
4247             -fomit-frame-pointer) ;;
4248             -g)                   echo -Z7 ;;
4249             -fno-math-errno)      ;;
4250             -fno-common)          ;;
4251             -fno-signed-zeros)    ;;
4252             -fPIC)                ;;
4253             -mthumb)              ;;
4254             -march=*)             ;;
4255             -lz)                  echo zlib.lib ;;
4256             -lx264)               echo libx264.lib ;;
4257             -lstdc++)             ;;
4258             -l*)                  echo ${flag#-l}.lib ;;
4259             -LARGEADDRESSAWARE)   echo $flag ;;
4260             -L*)                  echo -libpath:${flag#-L} ;;
4261             *)                    echo $flag ;;
4262         esac
4263     done
4264 }
4265
4266 msvc_flags(){
4267     msvc_common_flags "$@"
4268     for flag; do
4269         case $flag in
4270             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
4271                                        -wd4554 ;;
4272             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
4273                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
4274                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
4275                                        -wd4307 \
4276                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
4277         esac
4278     done
4279 }
4280
4281 icl_flags(){
4282     msvc_common_flags "$@"
4283     for flag; do
4284         case $flag in
4285             # Despite what Intel's documentation says -Wall, which is supported
4286             # on Windows, does enable remarks so disable them here.
4287             -Wall)                echo $flag -Qdiag-disable:remark ;;
4288             -std=c99)             echo -Qstd=c99 ;;
4289             -flto)                echo -ipo ;;
4290         esac
4291     done
4292 }
4293
4294 icc_flags(){
4295     for flag; do
4296         case $flag in
4297             -flto)                echo -ipo ;;
4298             *)                    echo $flag ;;
4299         esac
4300     done
4301 }
4302
4303 suncc_flags(){
4304     for flag; do
4305         case $flag in
4306             -march=*|-mcpu=*)
4307                 case "${flag#*=}" in
4308                     native)                   echo -xtarget=native       ;;
4309                     v9|niagara)               echo -xarch=sparc          ;;
4310                     ultrasparc)               echo -xarch=sparcvis       ;;
4311                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4312                     i586|pentium)             echo -xchip=pentium        ;;
4313                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4314                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4315                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4316                     pentium4*)          echo -xtarget=pentium4           ;;
4317                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4318                     *-sse3)             echo -xarch=sse3                 ;;
4319                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4320                     bonnell)                   echo -xarch=ssse3         ;;
4321                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4322                     westmere)                  echo -xtarget=westmere    ;;
4323                     silvermont)                echo -xarch=sse4_2        ;;
4324                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4325                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4326                                                echo -xarch=avx           ;;
4327                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4328                     btver1)                    echo -xarch=amdsse4a      ;;
4329                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4330                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4331                     k8|opteron|athlon64|athlon-fx)
4332                                                echo -xarch=sse2a         ;;
4333                     athlon*)                   echo -xarch=pentium_proa  ;;
4334                 esac
4335                 ;;
4336             -std=c99)             echo -xc99              ;;
4337             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4338             -fPIC)                echo -KPIC -xcode=pic32 ;;
4339             -W*,*)                echo $flag              ;;
4340             -f*-*|-W*|-mimpure-text)                      ;;
4341             -shared)              echo -G                 ;;
4342             *)                    echo $flag              ;;
4343         esac
4344     done
4345 }
4346
4347 probe_cc(){
4348     pfx=$1
4349     _cc=$2
4350     first=$3
4351
4352     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4353     unset _ld_o _ldflags _ld_lib _ld_path
4354     unset _depflags _DEPCMD _DEPFLAGS
4355     _flags_filter=echo
4356
4357     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4358         true # no-op to avoid reading stdin in following checks
4359     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4360         _type=llvm_gcc
4361         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4362         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4363         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4364         _cflags_speed='-O3'
4365         _cflags_size='-Os'
4366     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4367         _type=gcc
4368         gcc_version=$($_cc --version | head -n1)
4369         gcc_basever=$($_cc -dumpversion)
4370         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4371         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4372         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4373         case $gcc_basever in
4374             2) ;;
4375             2.*) ;;
4376             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4377         esac
4378         if [ "$first" = true ]; then
4379             case $gcc_basever in
4380                 4.2*)
4381                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4382             esac
4383         fi
4384         _cflags_speed='-O3'
4385         _cflags_size='-Os'
4386     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4387         _type=icc
4388         _ident=$($_cc --version | head -n1)
4389         _depflags='-MMD'
4390         _cflags_speed='-O3'
4391         _cflags_size='-Os'
4392         _cflags_noopt='-O1'
4393         _flags_filter=icc_flags
4394     elif $_cc -v 2>&1 | grep -q xlc; then
4395         _type=xlc
4396         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4397         _cflags_speed='-O5'
4398         _cflags_size='-O5 -qcompact'
4399     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4400         test -d "$sysroot" || die "No valid sysroot specified."
4401         _type=armcc
4402         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4403         armcc_conf="$PWD/armcc.conf"
4404         $_cc --arm_linux_configure                 \
4405              --arm_linux_config_file="$armcc_conf" \
4406              --configure_sysroot="$sysroot"        \
4407              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4408              die "Error creating armcc configuration file."
4409         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4410         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4411         as_default="${cross_prefix}gcc"
4412         _depflags='-MMD'
4413         _cflags_speed='-O3'
4414         _cflags_size='-Os'
4415     elif $_cc -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
4416         _type=clang
4417         _ident=$($_cc --version 2>/dev/null | head -n1)
4418         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4419         _cflags_speed='-O3'
4420         _cflags_size='-Oz'
4421     elif $_cc -V 2>&1 | grep -q Sun; then
4422         _type=suncc
4423         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4424         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4425         _DEPFLAGS='-xM1 -xc99'
4426         _ldflags='-std=c99'
4427         _cflags_speed='-O5'
4428         _cflags_size='-O5 -xspace'
4429         _flags_filter=suncc_flags
4430     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4431         _type=pathscale
4432         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4433         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4434         _cflags_speed='-O2'
4435         _cflags_size='-Os'
4436         _flags_filter='filter_out -Wdisabled-optimization'
4437     elif $_cc -v 2>&1 | grep -q Open64; then
4438         _type=open64
4439         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4440         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4441         _cflags_speed='-O2'
4442         _cflags_size='-Os'
4443         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4444     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4445         _type=armasm
4446         _ident=$($_cc | head -n1)
4447         # 4509: "This form of conditional instruction is deprecated"
4448         _flags="-nologo -ignore 4509"
4449         _flags_filter=armasm_flags
4450     elif $_cc 2>&1 | grep -q Intel; then
4451         _type=icl
4452         _ident=$($_cc 2>&1 | head -n1)
4453         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4454         # Not only is O3 broken on 13.x+ but it is slower on all previous
4455         # versions (tested) as well.
4456         _cflags_speed="-O2"
4457         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4458         if $_cc 2>&1 | grep -q Linker; then
4459             _ld_o='-out:$@'
4460         else
4461             _ld_o='-Fe$@'
4462         fi
4463         _cc_o='-Fo$@'
4464         _cc_e='-P'
4465         _flags_filter=icl_flags
4466         _ld_lib='lib%.a'
4467         _ld_path='-libpath:'
4468         # -Qdiag-error to make icl error when seeing certain unknown arguments
4469         _flags='-nologo -Qdiag-error:4044,10157'
4470         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4471         # with MSVC which enables it by default.
4472         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4473         disable stripping
4474     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4475         # lld can emulate multiple different linkers; in ms link.exe mode,
4476         # the -? parameter gives the help output which contains an identifyable
4477         # string, while it gives an error in other modes.
4478         _type=lld-link
4479         # The link.exe mode doesn't have a switch for getting the version,
4480         # but we can force it back to gnu mode and get the version from there.
4481         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4482         _ld_o='-out:$@'
4483         _flags_filter=msvc_flags
4484         _ld_lib='lib%.a'
4485         _ld_path='-libpath:'
4486     elif $_cc -nologo- 2>&1 | grep -q Microsoft || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
4487         _type=msvc
4488         _ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
4489         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4490         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4491         _cflags_speed="-O2"
4492         _cflags_size="-O1"
4493         _cflags_noopt="-O1"
4494         if $_cc -nologo- 2>&1 | grep -q Linker; then
4495             _ld_o='-out:$@'
4496         else
4497             _ld_o='-Fe$@'
4498         fi
4499         _cc_o='-Fo$@'
4500         _cc_e='-P -Fi$@'
4501         _flags_filter=msvc_flags
4502         _ld_lib='lib%.a'
4503         _ld_path='-libpath:'
4504         _flags='-nologo'
4505         disable stripping
4506     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4507         _type=cparser
4508         _ident=$($_cc --version | head -n1)
4509         _depflags='-MMD'
4510         _cflags_speed='-O4'
4511         _cflags_size='-O2'
4512         _flags_filter=cparser_flags
4513     fi
4514
4515     eval ${pfx}_type=\$_type
4516     eval ${pfx}_ident=\$_ident
4517 }
4518
4519 set_ccvars(){
4520     eval ${1}_C=\${_cc_c-\${${1}_C}}
4521     eval ${1}_E=\${_cc_e-\${${1}_E}}
4522     eval ${1}_O=\${_cc_o-\${${1}_O}}
4523
4524     if [ -n "$_depflags" ]; then
4525         eval ${1}_DEPFLAGS=\$_depflags
4526     else
4527         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4528         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4529         eval DEP${1}FLAGS=\$_flags
4530     fi
4531 }
4532
4533 probe_cc cc "$cc" "true"
4534 cflags_filter=$_flags_filter
4535 cflags_speed=$_cflags_speed
4536 cflags_size=$_cflags_size
4537 cflags_noopt=$_cflags_noopt
4538 add_cflags $_flags $_cflags
4539 cc_ldflags=$_ldflags
4540 set_ccvars CC
4541 set_ccvars CXX
4542
4543 probe_cc hostcc "$host_cc"
4544 host_cflags_filter=$_flags_filter
4545 host_cflags_speed=$_cflags_speed
4546 add_host_cflags  $_flags $_cflags
4547 set_ccvars HOSTCC
4548
4549 test -n "$cc_type" && enable $cc_type ||
4550     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4551
4552 : ${as_default:=$cc}
4553 : ${objcc_default:=$cc}
4554 : ${dep_cc_default:=$cc}
4555 : ${ld_default:=$cc}
4556 : ${host_ld_default:=$host_cc}
4557 set_default ar as objcc dep_cc ld ln_s host_ld windres
4558
4559 probe_cc as "$as"
4560 asflags_filter=$_flags_filter
4561 add_asflags $_flags $_cflags
4562 set_ccvars AS
4563
4564 probe_cc objcc "$objcc"
4565 objcflags_filter=$_flags_filter
4566 add_objcflags $_flags $_cflags
4567 set_ccvars OBJC
4568
4569 probe_cc ld "$ld"
4570 ldflags_filter=$_flags_filter
4571 add_ldflags $_flags $_ldflags
4572 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4573 LD_O=${_ld_o-$LD_O}
4574 LD_LIB=${_ld_lib-$LD_LIB}
4575 LD_PATH=${_ld_path-$LD_PATH}
4576
4577 probe_cc hostld "$host_ld"
4578 host_ldflags_filter=$_flags_filter
4579 add_host_ldflags $_flags $_ldflags
4580 HOSTLD_O=${_ld_o-$HOSTLD_O}
4581
4582 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4583     probe_cc depcc "$dep_cc"
4584     CCDEP=${_DEPCMD:-$DEPCMD}
4585     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4586     DEPCCFLAGS=$_flags
4587 fi
4588
4589 if $ar 2>&1 | grep -q Microsoft; then
4590     arflags="-nologo"
4591     ar_o='-out:$@'
4592 elif $ar 2>&1 | grep -q "\[D\] "; then
4593     arflags="rcD"
4594     ar_o='$@'
4595 else
4596     arflags="rc"
4597     ar_o='$@'
4598 fi
4599
4600 add_cflags $extra_cflags
4601 add_cxxflags $extra_cxxflags
4602 add_objcflags $extra_objcflags
4603 add_asflags $extra_cflags
4604
4605 if test -n "$sysroot"; then
4606     case "$cc_type" in
4607         gcc|llvm_gcc|clang)
4608             add_cppflags --sysroot="$sysroot"
4609             add_ldflags --sysroot="$sysroot"
4610         ;;
4611     esac
4612 fi
4613
4614 if test "$cpu" = host; then
4615     enabled cross_compile &&
4616         die "--cpu=host makes no sense when cross-compiling."
4617
4618     case "$cc_type" in
4619         gcc|llvm_gcc)
4620             check_native(){
4621                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4622                 sed -n "/cc1.*$1=/{
4623                             s/.*$1=\\([^ ]*\\).*/\\1/
4624                             p
4625                             q
4626                         }" $TMPE
4627             }
4628             cpu=$(check_native -march || check_native -mcpu)
4629         ;;
4630         clang)
4631             check_native(){
4632                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4633                 sed -n "/cc1.*-target-cpu /{
4634                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4635                             p
4636                             q
4637                         }" $TMPE
4638             }
4639             cpu=$(check_native -march)
4640         ;;
4641     esac
4642
4643     test "${cpu:-host}" = host &&
4644         die "--cpu=host not supported with compiler $cc"
4645 fi
4646
4647 # Deal with common $arch aliases
4648 case "$arch" in
4649     aarch64|arm64)
4650         arch="aarch64"
4651     ;;
4652     arm*|iPad*|iPhone*)
4653         arch="arm"
4654     ;;
4655     mips*|IP*)
4656         case "$arch" in
4657         *el)
4658             add_cppflags -EL
4659             add_ldflags -EL
4660         ;;
4661         *eb)
4662             add_cppflags -EB
4663             add_ldflags -EB
4664         ;;
4665         esac
4666         arch="mips"
4667     ;;
4668     parisc*|hppa*)
4669         arch="parisc"
4670     ;;
4671     "Power Macintosh"|ppc*|powerpc*)
4672         arch="ppc"
4673     ;;
4674     s390|s390x)
4675         arch="s390"
4676     ;;
4677     sh4|sh)
4678         arch="sh4"
4679     ;;
4680     sun4*|sparc*)
4681         arch="sparc"
4682     ;;
4683     tilegx|tile-gx)
4684         arch="tilegx"
4685     ;;
4686     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4687         arch="x86"
4688     ;;
4689 esac
4690
4691 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4692 enable $arch
4693
4694 # Add processor-specific flags
4695 if enabled aarch64; then
4696
4697     case $cpu in
4698         armv*)
4699             cpuflags="-march=$cpu"
4700         ;;
4701         *)
4702             cpuflags="-mcpu=$cpu"
4703         ;;
4704     esac
4705
4706 elif enabled alpha; then
4707
4708     cpuflags="-mcpu=$cpu"
4709
4710 elif enabled arm; then
4711
4712     check_arm_arch() {
4713         test_cpp_condition stddef.h \
4714             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4715             $cpuflags
4716     }
4717
4718     probe_arm_arch() {
4719         if   check_arm_arch 4;        then echo armv4
4720         elif check_arm_arch 4T;       then echo armv4t
4721         elif check_arm_arch 5;        then echo armv5
4722         elif check_arm_arch 5E;       then echo armv5e
4723         elif check_arm_arch 5T;       then echo armv5t
4724         elif check_arm_arch 5TE;      then echo armv5te
4725         elif check_arm_arch 5TEJ;     then echo armv5te
4726         elif check_arm_arch 6;        then echo armv6
4727         elif check_arm_arch 6J;       then echo armv6j
4728         elif check_arm_arch 6K;       then echo armv6k
4729         elif check_arm_arch 6Z;       then echo armv6z
4730         elif check_arm_arch 6KZ;      then echo armv6zk
4731         elif check_arm_arch 6ZK;      then echo armv6zk
4732         elif check_arm_arch 6T2;      then echo armv6t2
4733         elif check_arm_arch 7;        then echo armv7
4734         elif check_arm_arch 7A  7_A;  then echo armv7-a
4735         elif check_arm_arch 7S;       then echo armv7-a
4736         elif check_arm_arch 7R  7_R;  then echo armv7-r
4737         elif check_arm_arch 7M  7_M;  then echo armv7-m
4738         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4739         elif check_arm_arch 8A  8_A;  then echo armv8-a
4740         fi
4741     }
4742
4743     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4744
4745     case $cpu in
4746         armv*)
4747             cpuflags="-march=$cpu"
4748             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4749         ;;
4750         *)
4751             cpuflags="-mcpu=$cpu"
4752             case $cpu in
4753                 cortex-a*)                               subarch=armv7a  ;;
4754                 cortex-r*)                               subarch=armv7r  ;;
4755                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4756                 arm11*)                                  subarch=armv6   ;;
4757                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4758                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4759                 *)                             subarch=$(probe_arm_arch) ;;
4760             esac
4761         ;;
4762     esac
4763
4764     case "$subarch" in
4765         armv5t*)    enable fast_clz                ;;
4766         armv[6-8]*)
4767             enable fast_clz
4768             disabled fast_unaligned || enable fast_unaligned
4769             ;;
4770     esac
4771
4772 elif enabled avr32; then
4773
4774     case $cpu in
4775         ap7[02]0[0-2])
4776             subarch="avr32_ap"
4777             cpuflags="-mpart=$cpu"
4778         ;;
4779         ap)
4780             subarch="avr32_ap"
4781             cpuflags="-march=$cpu"
4782         ;;
4783         uc3[ab]*)
4784             subarch="avr32_uc"
4785             cpuflags="-mcpu=$cpu"
4786         ;;
4787         uc)
4788             subarch="avr32_uc"
4789             cpuflags="-march=$cpu"
4790         ;;
4791     esac
4792
4793 elif enabled bfin; then
4794
4795     cpuflags="-mcpu=$cpu"
4796
4797 elif enabled mips; then
4798
4799     cpuflags="-march=$cpu"
4800
4801     if [ "$cpu" != "generic" ]; then
4802         disable mips32r2
4803         disable mips32r5
4804         disable mips64r2
4805         disable mips32r6
4806         disable mips64r6
4807         disable loongson2
4808         disable loongson3
4809
4810         case $cpu in
4811             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4812                 enable mips32r2
4813                 disable msa
4814             ;;
4815             p5600|i6400|p6600)
4816                 disable mipsdsp
4817                 disable mipsdspr2
4818             ;;
4819             loongson*)
4820                 enable loongson2
4821                 enable loongson3
4822                 enable local_aligned
4823                 enable simd_align_16
4824                 enable fast_64bit
4825                 enable fast_clz
4826                 enable fast_cmov
4827                 enable fast_unaligned
4828                 disable aligned_stack
4829                 disable mipsfpu
4830                 disable mipsdsp
4831                 disable mipsdspr2
4832                 # When gcc version less than 5.3.0, add -fno-expensive-optimizations flag.
4833                 if [ $cc == gcc ]; then
4834                     gcc_version=$(gcc -dumpversion)
4835                     if [ "$(echo "$gcc_version 5.3.0" | tr " " "\n" | sort -rV | head -n 1)" == "$gcc_version" ]; then
4836                         expensive_optimization_flag=""
4837                     else
4838                         expensive_optimization_flag="-fno-expensive-optimizations"
4839                     fi
4840                 fi
4841                 case $cpu in
4842                     loongson3*)
4843                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
4844                     ;;
4845                     loongson2e)
4846                         cpuflags="-march=loongson2e -mhard-float $expensive_optimization_flag"
4847                     ;;
4848                     loongson2f)
4849                         cpuflags="-march=loongson2f -mhard-float $expensive_optimization_flag"
4850                     ;;
4851                 esac
4852             ;;
4853             *)
4854                 # Unknown CPU. Disable everything.
4855                 warn "unknown CPU. Disabling all MIPS optimizations."
4856                 disable mipsfpu
4857                 disable mipsdsp
4858                 disable mipsdspr2
4859                 disable msa
4860                 disable mmi
4861             ;;
4862         esac
4863
4864         case $cpu in
4865             24kc)
4866                 disable mipsfpu
4867                 disable mipsdsp
4868                 disable mipsdspr2
4869             ;;
4870             24kf*)
4871                 disable mipsdsp
4872                 disable mipsdspr2
4873             ;;
4874             24kec|34kc|1004kc)
4875                 disable mipsfpu
4876                 disable mipsdspr2
4877             ;;
4878             24kef*|34kf*|1004kf*)
4879                 disable mipsdspr2
4880             ;;
4881             74kc)
4882                 disable mipsfpu
4883             ;;
4884             p5600)
4885                 enable mips32r5
4886                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4887             ;;
4888             i6400)
4889                 enable mips64r6
4890                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4891             ;;
4892             p6600)
4893                 enable mips64r6
4894                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4895             ;;
4896         esac
4897     else
4898         # We do not disable anything. Is up to the user to disable the unwanted features.
4899         warn 'generic cpu selected'
4900     fi
4901
4902 elif enabled ppc; then
4903
4904     disable ldbrx
4905
4906     case $(tolower $cpu) in
4907         601|ppc601|powerpc601)
4908             cpuflags="-mcpu=601"
4909             disable altivec
4910         ;;
4911         603*|ppc603*|powerpc603*)
4912             cpuflags="-mcpu=603"
4913             disable altivec
4914         ;;
4915         604*|ppc604*|powerpc604*)
4916             cpuflags="-mcpu=604"
4917             disable altivec
4918         ;;
4919         g3|75*|ppc75*|powerpc75*)
4920             cpuflags="-mcpu=750"
4921             disable altivec
4922         ;;
4923         g4|745*|ppc745*|powerpc745*)
4924             cpuflags="-mcpu=7450"
4925             disable vsx
4926         ;;
4927         74*|ppc74*|powerpc74*)
4928             cpuflags="-mcpu=7400"
4929             disable vsx
4930         ;;
4931         g5|970|ppc970|powerpc970)
4932             cpuflags="-mcpu=970"
4933             disable vsx
4934         ;;
4935         power[3-6]*)
4936             cpuflags="-mcpu=$cpu"
4937             disable vsx
4938         ;;
4939         power[7-8]*)
4940             cpuflags="-mcpu=$cpu"
4941         ;;
4942         cell)
4943             cpuflags="-mcpu=cell"
4944             enable ldbrx
4945             disable vsx
4946         ;;
4947         e500mc)
4948             cpuflags="-mcpu=e500mc"